A multi-station parallel processing lock automatic puncher

Abstract

The application relates to a multi-station parallel processing lock automatic puncher, which comprises a rack, a feeding module, a reciprocating feeding mechanism, multiple punch stations, a turnover transfer module and a discharging module. The feeding module is used for sequentially conveying lock embryos; the reciprocating feeding mechanism is provided with a bearing seat and multiple lock embryo clamps which reciprocate along a feeding direction; the punch station is provided with multidirectional drilling devices and can simultaneously drill the top surface, the rear side surface and the front side surface of the lock embryo; the turnover transfer module is used for transferring the lock embryo and selectively turning over; and the discharging module sends out the processed lock embryo. The lock embryo clamp comprises a base, a movable clamping seat, a fixed clamping part, a movable clamping part, a driver and a torque amplification mechanism, is used for clamping the lock embryo from the left and right directions and generates amplified clamping force at the end section of the clamping stroke. The modules are compactly arranged along the feeding direction, the bearing seat drives the clamp to synchronously move, and the multi-station parallel processing is realized. The machine adopts a compact modular layout and a torque amplification mechanism, can guarantee the efficiency and reduce the floor area.

Description

Technical Field

[0001] This application relates to the field of lock manufacturing technology, and more specifically, to an automatic lock drilling machine that performs multi-station parallel processing. Background Technology

[0002] In the lock manufacturing industry, drilling the lock blank is one of the key processes in production. The lock blank typically requires the machining of multiple holes, including top holes, front side holes, rear side holes, and pin holes. The large number and dense distribution of these holes place high demands on machining accuracy and efficiency.

[0003] Traditional lock drilling typically employs a single-station, unidirectional drilling method. The operator clamps the lock blank onto a fixture, and the drilling device sequentially completes drilling in each direction. For example, the top hole is drilled first, then the fixture is re-clamped or adjusted, and the back hole is drilled, and so on. This method has the following drawbacks: First, multiple clamping operations lead to inconsistent positioning references, easily causing cumulative errors and affecting machining accuracy; second, drilling in each direction sequentially results in a long cycle time and low production efficiency; third, it requires frequent manual intervention, has a low degree of automation, and is difficult to meet the needs of mass production.

[0004] To address the aforementioned problems, multi-station automatic drilling equipment has emerged in the prior art. For example, Chinese invention patent CN102091803A discloses a lock drilling machine, which includes a frame and multiple bench drills mounted on the frame. Adjacent bench drills are connected by a synchronous transmission device, and the lifting and lowering of all drill heads are simultaneously controlled by a lifting switch. The frame also features multiple workpiece conveyor belts, with lock body flippers installed between adjacent conveyor belts, and a height difference exists between adjacent conveyor belts. This equipment transports lock bodies via the workpiece conveyor belts, and during transport, the lock bodies are flipped by the lock body flippers, thereby sequentially completing drilling in different directions on multiple bench drills. This achieves continuous multi-station operation and significantly improves drilling efficiency.

[0005] However, the aforementioned lock drilling machine still has the following shortcomings: First, the equipment adopts a layout in which multiple sets of workpiece conveyor belts are connected in sequence, with lock body flippers set between adjacent workpiece conveyor belts, and there are height differences between the conveyor belts. The whole machine extends a long distance along the feeding direction, resulting in a large overall structure and occupying a large production area. At the same time, the setting of multiple sets of conveyor belts makes the equipment structure complex and the manufacturing cost high. Second, the clamps in the equipment are traditional clamping devices, and their clamping force is limited by the output force of the drive cylinder, which makes it difficult to meet the higher clamping force requirements when drilling holes in multiple directions at the same time.

[0006] During drilling, the lock blank needs to withstand drilling forces. For drilling in a single direction, existing equipment typically uses supports on the opposite side of the drilling direction to resist the drilling forces. For example, when drilling from top to bottom, a support is placed at the bottom of the lock blank; when drilling from the rear, a support is placed at the front. However, with the increasing demands for processing efficiency and technology, there is a pressing need to simultaneously drill the top, front, and rear sides of the lock blank—that is, drilling in multiple directions simultaneously. In this processing method, if traditional support methods are used, for example, if drilling is required on the front side of the lock blank, a support needs to be placed on its rear side to resist the drilling forces; however, if drilling is also required on the rear side, a support structure cannot be placed simultaneously. In other words, there is an inherent contradiction between the drilling direction and the support direction in multi-directional drilling scenarios, making it impossible to resist the drilling forces in each direction by setting up supports. To address this problem, the lock blank can only be positioned by firmly clamping it in the left and right directions, relying on the friction generated by the clamping force to resist the processing forces generated in each direction during multi-directional drilling. This requires the fixture to provide sufficient clamping force to ensure the stability of the blank during multi-directional drilling.

[0007] In summary, existing lock drilling equipment has the following technical problems: First, the machine structure is bulky and occupies a lot of space; second, the clamping force of the fixture is insufficient, making it difficult to meet the clamping force requirements of drilling in multiple directions simultaneously; third, the overall layout of the machine is loose, making it difficult to achieve efficient multi-station parallel processing.

[0008] To address the aforementioned problems, this application provides an automatic lock drilling machine, aiming to solve the technical issues of existing equipment being bulky, having insufficient clamping force, and being unable to adapt to simultaneous drilling needs in multiple directions. This automatic lock drilling machine adopts a compact modular layout and enhances the clamping force of the fixture through a torque amplification mechanism, enabling parallel processing at multiple stations and effectively reducing the equipment's footprint while ensuring processing efficiency. Summary of the Invention

[0009] The purpose of this application is to provide an automatic lock drilling machine with multi-station parallel processing, aiming to solve the technical problems of existing equipment being bulky, having insufficient clamping force, and being unable to adapt to the need for simultaneous drilling in multiple directions. This automatic lock drilling machine adopts a compact modular layout and enhances the clamping force of the fixture through a torque amplification mechanism, enabling multi-station parallel processing and effectively reducing the equipment's footprint while ensuring processing efficiency.

[0010] This application provides an automatic lock drilling machine with multi-station parallel processing, the technical solution of which is as follows:

[0011] include:

[0012] frame;

[0013] The feeding module, located on the frame, is used to sequentially convey the blanks;

[0014] A reciprocating feeding mechanism is mounted on a frame and includes a support seat that reciprocates along the feeding direction and multiple blank clamps mounted on the support seat.

[0015] Multiple drilling stations are arranged sequentially on the frame along the feeding direction. Each drilling station is equipped with a multi-directional drilling device, which includes a top drilling mechanism, a rear drilling mechanism, and a front drilling mechanism, used to drill holes on the top, rear, and front sides of the lock blank simultaneously.

[0016] The flipping and transfer module is set at each drilling station to transfer the lock blanks processed at the previous station to the next station, and can selectively flip the lock blanks.

[0017] And the discharge module, located at the end of the frame, is used to send out the processed lock blank;

[0018] The locking fixture includes:

[0019] The base has a recessed groove in the middle of its upper end face to form a receiving groove, and the base has a first side wall and a second side wall on both sides of the receiving groove.

[0020] The movable clamping seat is movably positioned within the receiving groove;

[0021] The inner wall of the second sidewall has a fixed clamping part, and the inner wall of the movable clamping seat has a movable clamping part. The fixed clamping part and the movable clamping part are arranged opposite to each other to clamp and lock the blank from the left and right directions.

[0022] The driver is mounted on the base;

[0023] A torque amplification mechanism is connected between the output end of the driver and the movable clamping seat. It is used to transmit the force output by the driver to the movable clamping seat in a torque amplification manner, so as to drive the moving clamping part and the fixed clamping part to move closer or further apart, thereby generating an amplified clamping force at the end of the clamping stroke.

[0024] The feeding module, reciprocating feeding mechanism, multiple punching stations, flipping and transfer module and discharge module are arranged in a compact sequence along the feeding direction. The bearing seat drives multiple blank clamps to move synchronously, so that each blank clamp passes through each punching station and each flipping and transfer module in sequence, realizing multi-station parallel processing.

[0025] Furthermore, this application also proposes that the lock blank clamping fixture further includes a support shaft, and the bottom surface of the receiving groove of the base is provided with a groove located between the fixed clamping part and the movable clamping part, and the support shaft is horizontally disposed in the groove for forming line contact support with the bottom of the lock blank.

[0026] Furthermore, this application also proposes that the torque amplification mechanism is a linkage-type torque amplification mechanism, which includes a first linkage and a second linkage that are hinged to each other. The other end of the first linkage is hinged to a hinge seat recess provided in the first side wall, and the other end of the second linkage is hinged to a movable clamping seat. The output end of the driver is connected to the hinge axis of the first linkage and the second linkage through a transmission member.

[0027] Furthermore, this application also proposes that the driver is a cylinder, and a mounting cavity for accommodating the cylinder is provided below the receiving groove; or a through hole for the output shaft of the cylinder to pass through is provided below the receiving groove, and the cylinder is located at the bottom of the base.

[0028] Furthermore, this application also proposes that the driver drives the hinge point of the first link and the second link to rise and fall through the transmission component, so as to change the included angle between the first link and the second link; when the first link and the second link are at 180°, the moving clamping part and the fixed clamping part move closer to each other to clamp the locking blank.

[0029] Furthermore, this application also proposes that the torque amplification mechanism is a cam-type torque amplification mechanism, which includes a swing cam. The first sidewall includes a left wall portion and a right wall portion, and a hinge seat recess is formed between the left wall portion and the right wall portion. The swing cam is hinged to the hinge seat recess by a pin, and the cam surface of the swing cam abuts against the movable clamping seat for pressing the movable clamping seat under the drive of the driver.

[0030] Furthermore, this application also proposes that the actuator is a hydraulic cylinder, and a hydraulic cylinder mounting seat is provided on the rear side of the first side wall, and the hydraulic cylinder is mounted on the hydraulic cylinder mounting seat; the hydraulic cylinder mounting seat and the base are fixedly connected by bolts or integrally formed, or the base is provided with a T-slot, and the hydraulic cylinder mounting seat is provided with a T-connector, and the hydraulic cylinder mounting seat is fixedly connected to the base after being inserted into the T-slot by the T-connector.

[0031] Furthermore, this application also proposes that the oscillating cam includes a base, on which a first connecting portion for hinged to a first sidewall, a second connecting portion for connecting to the output end of a driver, and a cam working surface for abutting against a movable clamping seat.

[0032] Furthermore, this application also proposes that the cam working surface is configured such that the distance from the axis of the first connecting part on the cam working surface gradually increases from the position where the swing cam begins to contact the movable clamping seat to the position where clamping ends.

[0033] Furthermore, this application also proposes that the movable clamping seat is movably configured via a guide shaft passing through a guide hole in the first side wall, the front end of the guide shaft being fixedly connected to both sides of the movable clamping seat, and an elastic reset member for resetting the movable clamping seat is sleeved on the guide shaft.

[0034] Furthermore, this application also proposes that an adjusting screw is provided between the swing cam and the movable clamping seat, the movable clamping seat has a through hole, the adjusting screw is set in the through hole and its rear end extends out of the through hole and abuts against the swing cam, the front end of the adjusting screw does not exceed the clamping surface of the movable clamping seat, and is used to adjust the relative position between the movable clamping seat and the swing cam by rotation, so as to achieve fine adjustment of the position or clamping force of the lock blank.

[0035] Furthermore, this application also proposes that the fixed clamping part is directly formed by the inner wall of the second side wall, and the movable clamping part is directly formed by the inner wall of the movable clamping seat; or, the fixed clamping part and the movable clamping part are clamping components independent of the second side wall and the movable clamping seat, respectively, with the fixed clamping part fixed to the inner wall of the second side wall and the movable clamping part fixed to the inner wall of the movable clamping seat.

[0036] Furthermore, this application also proposes that the feeding module includes an inclined rail and a receiving seat located at the end of the inclined rail. A feeding push rod is provided on one side of the receiving seat for pushing the lock blank to the first lock blank fixture. A positioning rod is also provided on the frame for extending into the first lock blank fixture during the locking blank feeding process to position the rear end of the lock blank.

[0037] Furthermore, this application also proposes that the upper end face of the bearing seat and the lower end face of the locking blank fixture are respectively provided with positioning grooves extending along the feeding direction, and the positioning grooves are connected by positioning keys to realize the positioning between the bearing seat and the locking blank fixture and resist the relative displacement generated by the lateral drilling force.

[0038] Furthermore, this application also proposes that the top drilling mechanism, the rear drilling mechanism, and the front drilling mechanism all include a drive motor and a drill bit assembly. The drive motor and the drill bit assembly are mounted on an adjustment seat. An adjustment structure is provided between the adjustment seat and the frame. The adjustment structure includes a strip hole provided on the adjustment seat and a fastener passing through the strip hole and connected to the frame, for realizing three-dimensional position adjustment in the machine adjustment state.

[0039] Furthermore, this application also proposes that the flipping and transfer module includes a flipping seat and a flipping driver for driving the flipping seat to rotate. The flipping seat has a receiving cavity adapted to the shape of the lock blank, and the flipping seat has an opening for the lock blank to enter and exit.

[0040] Furthermore, this application also proposes that the flipping and transfer module further includes a first transfer component and a second transfer component, wherein the first transfer component is used to push the lock blank from the lock blank fixture to the receiving cavity, and the second transfer component is used to push the lock blank from the receiving cavity to the next lock blank fixture.

[0041] Furthermore, this application also proposes that a reciprocating feeding mechanism drives multiple locking blank clamps to move synchronously, with each locking blank clamp corresponding to the feeding module, each drilling station, each flipping and transfer module and the discharging module in sequence on the moving path, so as to realize the loading, drilling, transfer or flipping and discharging of the locking blanks respectively.

[0042] Furthermore, this application also proposes that it includes a conveying track and a pin hole processing device. The conveying track is located between the discharge module and the pin hole processing device, and is used to convey the completed lock blank to the pin hole processing device. The pin hole processing device has a degree of freedom of movement and is used to process multiple pin holes sequentially on the lock blank.

[0043] Furthermore, this application also proposes that the conveying track includes a first conveying section and a second conveying section arranged in parallel, with the end of the first conveying section located above the beginning of the second conveying section, and a flipping guide is provided between the first conveying section and the second conveying section for controlling the flipping of the locking blank.

[0044] Furthermore, this application also proposes that there be multiple ball hole processing devices, which are connected in series along the conveying direction of the conveying track, or that there are multiple conveying tracks, which are connected in parallel and each conveying track is equipped with a corresponding ball hole processing device.

[0045] As can be seen from the above, the automatic lock drilling machine for multi-station parallel processing provided in this application achieves compact structure, adaptability to simultaneous drilling in multiple directions, and efficient multi-station parallel processing through a compactly arranged feeding module, reciprocating feeding mechanism, multiple drilling stations, flipping and transfer module and discharge module, as well as a torque amplification mechanism to provide amplified clamping force. It has the advantages of compact structure, small space occupation, amplified clamping force to adapt to simultaneous drilling in multiple directions, and efficient multi-station parallel processing. Attached Figure Description

[0046] Figure 1 This is a top view of an automatic lock punching machine provided in this application.

[0047] Figure 2 A plan view of the drilling station of an automatic lock drilling machine provided in this application.

[0048] Figure 3 A schematic diagram of the transfer station of an automatic lock punching machine provided in this application.

[0049] Figure 4 This is a schematic diagram of one type of flip seat.

[0050] Figure 5 This is a schematic diagram of the assembly of the bearing seat and the locking fixture.

[0051] Figure 6 This is a side view diagram of the pneumatically driven locking fixture provided in this application.

[0052] Figure 7 This is a schematic diagram of the top plane of a pneumatically driven locking fixture.

[0053] Figure 8 A three-dimensional structural diagram of the hydraulically driven lock blank holder provided in this application (with lock blank loaded).

[0054] Figure 9 A three-dimensional structural diagram of the hydraulically driven lock blank holder provided in this application (without the lock blank loaded).

[0055] Figure 10 A schematic diagram of the clamping state of a hydraulically driven locking blank fixture.

[0056] Figure 11 This is a schematic diagram of a locking fixture using a T-type connector.

[0057] Figure 12 This is a three-dimensional schematic diagram of a swing cam.

[0058] Figure 13 This is a planar schematic diagram of a swing cam (the dashed lines in the diagram are to show the gradual change of the cam surface). Detailed Implementation

[0059] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0060] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this application, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] Traditional lock drilling processes suffer from problems such as positioning errors due to multiple clamping operations, long processing cycles, and low automation. While existing multi-station equipment has improved efficiency, it still faces challenges such as a large overall structure, large space occupation, insufficient clamping force of the fixtures to accommodate simultaneous drilling in multiple directions, and a loose overall layout that makes it difficult to achieve efficient parallel processing.

[0062] like Figure 1-13 As shown, this application proposes an automatic lock punching machine for multi-station parallel processing, comprising:

[0063] Rack 1;

[0064] The feeding module is installed on the frame 1 and is used to sequentially convey the locking blanks;

[0065] The reciprocating feeding mechanism 3 is mounted on the frame 1 and includes a support seat 31 that reciprocates along the feeding direction and a plurality of blank clamping fixtures 4 mounted on the support seat 31.

[0066] Multiple drilling stations 5 are arranged sequentially on the frame 1 along the feeding direction. Each drilling station 5 is equipped with a multi-directional drilling device, which includes a top drilling mechanism 61, a rear drilling mechanism 62 and a front drilling mechanism 63, for drilling holes on the top, rear and front sides of the lock blank simultaneously.

[0067] The flipping and transfer module 7 is set at each drilling station 5 to transfer the lock blank processed at the previous station to the next station, and can selectively flip the lock blank.

[0068] And the discharge module, located at the end of the frame 1, is used to send out the processed lock blank;

[0069] The locking fixture 4 includes:

[0070] The base 41 has a recessed groove 411 formed in the middle of its upper end surface, and the base 41 has a first sidewall 412 and a second sidewall 413 on both sides of the groove 411.

[0071] The movable clamping seat 42 is movably disposed within the receiving groove 411;

[0072] The inner wall of the second sidewall 413 has a fixed clamping part 43, and the inner wall of the movable clamping seat 42 has a movable clamping part 44. The fixed clamping part 43 and the movable clamping part 44 are arranged opposite to each other to clamp and lock the blank from the left and right directions.

[0073] The driver 45 is mounted on the base 41;

[0074] A torque amplification mechanism is connected between the output end of the driver 45 and the movable clamping seat 42. It is used to transmit the force output by the driver 45 to the movable clamping seat 42 in a torque amplification manner, so as to drive the movable clamping part 44 to move closer or further away from the fixed clamping part 43, thereby generating an amplified clamping force at the end of the clamping stroke.

[0075] The feeding module, reciprocating feeding mechanism 3, multiple drilling stations 5, flipping and transfer module 7 and discharge module are arranged in a compact sequence along the feeding direction. The bearing seat 31 drives multiple blank clamping fixtures 4 to move synchronously, so that each blank clamping fixture 4 passes through each drilling station 5 and each flipping and transfer module 7 in sequence, realizing multi-station parallel processing.

[0076] For ease of understanding, the following explains some key terms in this embodiment:

[0077] The multi-station parallel processing automatic lock drilling machine is a device used for automated drilling of lock blanks. This equipment integrates multiple functional modules to achieve a series of processing steps, including automatic feeding, conveying, multi-directional drilling, flipping and transfer, and unloading of the lock blanks, aiming to improve production efficiency and processing accuracy.

[0078] The feeding module is the first functional unit of the equipment. Its function is to receive the lock blanks to be processed from the external supply and transport them to the subsequent processing stations according to a preset sequence and cycle time. This module typically includes structures for storing and guiding the lock blanks, as well as a drive mechanism for pushing the lock blanks into place.

[0079] The reciprocating feeding mechanism 3 is the core component responsible for conveying lock blanks between different processing stations. This mechanism drives multiple lock blank fixtures 4 to move synchronously through the reciprocating motion of the support seat 31. In each reciprocating cycle, the lock blank is sequentially fed into different drilling stations 5 and flipping transfer modules 7, thereby realizing continuous multi-station parallel processing.

[0080] The lock blank clamp 4 is a device used to firmly clamp the lock blank, which withstands the drilling force during processing and ensures the stable positioning of the lock blank. The clamp is set on the support seat 31 of the reciprocating feeding mechanism 3, and its internal structure includes a base 41, a movable clamping seat 42, a fixed clamping part 43, a movable clamping part 44, a driver 45, and a torque amplification mechanism, which work together to provide sufficient clamping force.

[0081] The multi-directional drilling device is the key actuator for simultaneously drilling multiple sides of the lock blank. This device is installed at each drilling station (5 positions) and typically includes a top drilling mechanism 61, a rear drilling mechanism 62, and a front drilling mechanism 63. These mechanisms work together to simultaneously drill the top, rear, and front sides of the lock blank, improving processing efficiency.

[0082] The flipping and transfer module 7 is located between or after each drilling station 5. Its main function is to remove the lock blank processed at the previous station from the current fixture and transfer it to the fixture at the next station. In addition, this module also has the ability to selectively flip the lock blank to adapt to the requirements of the lock blank posture at different processing stages.

[0083] The torque amplification mechanism is an important component of the lock blank clamping fixture 4. Its function is to amplify the original force output by the driver 45 through a mechanical structure and transmit the increased force rectangularly to the movable clamping seat 42. Through this mechanism, the movable clamping part 44 and the fixed clamping part 43 can generate a clamping force much greater than the output force of the driver 45 at the end of the clamping stroke, thereby ensuring that the lock blank can be firmly clamped when drilling holes in multiple directions simultaneously.

[0084] This embodiment provides an automatic lock punching machine with multi-station parallel processing, whose overall structure is designed to be modular and compact. The equipment includes a frame 1 to support all components, and a feeding module, a reciprocating feeding mechanism 3, multiple punching stations 5, a flipping and transfer module 7, and a discharge module arranged sequentially along the feeding direction. This compact layout aims to reduce the equipment's footprint and optimize material handling efficiency.

[0085] The feeding module is configured to sequentially transport the lock blanks to be processed to the starting position of the processing line. For example, a gravity slide in conjunction with a pushing mechanism can be used to remove the lock blank from the hopper and feed it into the first lock blank fixture 4.

[0086] The reciprocating feeding mechanism 3 is responsible for conveying the lock blanks throughout the entire processing. This mechanism can use a linear guide rail in conjunction with a cylinder or servo motor-driven carrier 31 to achieve reciprocating motion. Multiple lock blank clamps 4 are fixed on the carrier 31. As the carrier 31 moves, these clamps synchronously carry the lock blanks from one station to the next, thereby realizing multi-station parallel processing.

[0087] Multiple drilling stations 5 are arranged sequentially along the feeding direction, and each station is equipped with a multi-directional drilling device. This multi-directional drilling device can consist of independent drilling units; for example, the top drilling mechanism 61 can be a vertically mounted electric spindle, while the rear drilling mechanism 62 and the front drilling mechanism 63 can be horizontally mounted electric spindles. These drilling units are synchronously controlled, enabling simultaneous drilling of the top, rear, and front surfaces of the locking blank.

[0088] The flipping and transfer module 7 is located between or after each drilling station 5. It is used to remove the processed lock blank from the current fixture and transfer it to the fixture of the next station. This module can also selectively flip the lock blank using a robot or rotating mechanism to adapt to the processing posture requirements of subsequent stations, depending on the processing needs.

[0089] The discharge module is located at the end of frame 1 and is used to receive all processed lock blanks and send them out of the equipment. For example, finished lock blanks can be collected into a hopper via a conveyor belt or chute.

[0090] One of the core components of this multi-station parallel processing automatic lock punching machine is the lock blank fixture 4. This fixture includes a base 41, the upper surface of which is designed with a recessed receiving groove 411 for placing the lock blank. The base 41 has a first sidewall 412 and a second sidewall 413 on both sides of the receiving groove 411. A movable clamping seat 42 is movably disposed within the receiving groove 411.

[0091] Inside the fixture, a fixed clamping portion 43 is formed on the inner wall side of the second sidewall 413, while a movable clamping portion 44 is formed on the inner wall side of the movable clamping seat 42. The fixed clamping portion 43 and the movable clamping portion 44 are arranged opposite to each other for clamping the lock blank from the left and right directions. For example, the fixed clamping portion 43 can be a fixed block, and the movable clamping portion 44 can be a movable clamping block.

[0092] A actuator 45 is mounted on a base 41 to provide the initial power required for clamping. The actuator 45 can be a pneumatic cylinder, a hydraulic cylinder, or an electric actuator, whose output generates linear thrust or pull.

[0093] A torque amplification mechanism is cleverly connected between the output end of the driver 45 and the movable clamping seat 42. The function of this mechanism is to amplify the force output by the driver 45 through mechanical principles and transmit it to the movable clamping seat 42 in the form of torque. For example, this mechanism can be composed of a set of levers or gears, amplifying the force by changing the point of application and lever arm. Thus, at the end of the clamping stroke, a clamping force much greater than the original output force of the driver 45 can be generated between the movable clamping part 44 and the fixed clamping part 43, ensuring that the lock blank can be firmly clamped when drilling in multiple directions simultaneously, resisting various forces generated during processing.

[0094] This application's multi-station parallel processing automatic lock drilling machine effectively reduces the equipment's footprint through a compact modular layout. Simultaneously, the innovative lock blank clamping fixture 4 integrates a torque amplification mechanism, enhancing clamping force and ensuring stability of the lock blank during simultaneous drilling in multiple directions. Combined with the multi-station parallel processing achieved by the reciprocating feeding mechanism 3, this equipment improves the production efficiency and processing accuracy of lock blank drilling, meeting the demands of high-intensity automated production.

[0095] This embodiment provides a fixture capable of enhancing clamping force. Its structural design aims to optimize workpiece clamping stability, making it particularly suitable for machining scenarios requiring high clamping force. Specifically, the main structure of the fixture includes a base 41. This base 41 is typically integrally formed from high-strength materials such as cast iron or steel, or assembled through welding, bolting, or other methods to provide sufficient rigidity and stability. The upper end face of the base 41 is designed with a concave structure in the middle, forming a receiving groove 411. The formation of this receiving groove 411 provides the necessary space for the moving parts inside the fixture. On both sides of the receiving groove 411, a first sidewall 412 and a second sidewall 413 are respectively provided. These sidewalls serve as the boundaries of the receiving groove 411 and also provide support for the installation and positioning of other components. For example, the first sidewall 412 and the second sidewall 413 can be integrally cast with the base 41 or formed by machining.

[0096] A movable clamping seat 42 is provided within the aforementioned receiving groove 411. This movable clamping seat 42 is configured to reciprocate within the receiving groove 411. Its movement can be linearly guided by the cooperation of a guide rail and a slider. For example, the bottom or side of the movable clamping seat 42 can be machined with guide grooves that cooperate with corresponding guide protrusions or guide rails on the base 41 to ensure a stable movement trajectory during clamping and releasing. Alternatively, linear guidance can be achieved using a guide shaft 410. The clamping function of this fixture is jointly performed by a fixed clamping part 43 and a movable clamping part 44. The fixed clamping part 43 is located on the inner wall of the second side wall 413, and its position is fixed. The movable clamping part 44 is located on the inner wall of the movable clamping seat 42 and moves with the movement of the movable clamping seat 42. The fixed clamping part 43 and the movable clamping part 44 face each other, forming a clamping space for clamping the workpiece to be processed. For example, the fixed clamping part 43 and the movable clamping part 44 can be simply formed directly from the second side wall 413 and the inner wall of the movable clamping seat 42, and their surfaces can be hardened or have anti-slip textures added to improve the clamping effect. Alternatively, they can be attached in a detachable manner for easy replacement and adjustment.

[0097] To drive the movable clamping seat 42 to perform clamping actions, a driver 45 is provided in the fixture. The driver 45 is mounted on the base 41 and serves as the power source for the fixture. The driver 45 can take various forms; for example, it can be an electric actuator that generates linear thrust by driving a lead screw and nut mechanism with a motor; it can be a hydraulic cylinder that drives the piston rod to extend and retract using hydraulic oil pressure; or it can be a pneumatic cylinder that drives the piston rod to extend and retract using compressed air. The driver 45 generates an initial driving force through its output end.

[0098] The force output by the driver 45 is transmitted to the movable clamping seat 42 through a torque amplification mechanism. This torque amplification mechanism is connected between the output end of the driver 45 and the movable clamping seat 42. The core function of this mechanism is to amplify the force generated by the driver 45 and act it as a torque on the movable clamping seat 42, thereby driving the moving clamping part 44 and the fixed clamping part 43 to move closer or further apart. This torque amplification mechanism can be implemented using various mechanical structures. For example, it can be a simple lever mechanism that amplifies the force by adjusting the position of the fulcrum; or a cam clamping structure that converts the thrust of the driver 45 into a larger clamping force through the action of the inclined plane. Through the action of this torque amplification mechanism, especially at the end of the clamping stroke, that is, when the moving clamping part 44 and the fixed clamping part 43 are about to fully clamp the workpiece, a clamping force much greater than the original output force of the driver 45 can be generated, thereby ensuring that the workpiece is firmly and stably clamped.

[0099] The fixture in this embodiment effectively solves the problem of insufficient clamping force in existing fixtures when drilling in multiple directions simultaneously, through the coordinated action of the base 41, movable clamping seat 42, fixed clamping part 43, movable clamping part 44, driver 45, and torque amplification mechanism. This fixture can transmit the force output by the driver 45 to the movable clamping seat 42 in a torque amplification manner, thereby generating a significantly increased clamping force at the end of the clamping stroke. Therefore, in multi-directional drilling scenarios, the workpiece can be firmly clamped, effectively resisting machining forces from all directions through friction, ensuring the stability and accuracy of the machining process.

[0100] exist Figure 6In the specific embodiment shown in Figures 8-11, a support shaft 47 is further included. The bottom surface of the receiving groove 411 of the base 41 is provided with a groove 414 located between the fixed clamping part 43 and the movable clamping part 44. The support shaft 47 is horizontally disposed within the groove 414 to form line contact support with the bottom of the workpiece to be processed. Specifically, the support shaft 47 is a slender rod-shaped component whose main function is to provide stable support for the bottom of the workpiece to be processed. The support shaft 47 can be made of materials such as high-strength steel, hard alloy, or ceramic to ensure sufficient rigidity and wear resistance to withstand the weight of the workpiece and the forces generated during processing. Its cross-sectional shape can be circular, square, or irregular, depending on the geometric requirements of contact with the bottom of the workpiece. The groove 414 is a concave structure provided on the bottom surface of the receiving groove 411 of the base 41. The geometry and dimensions of the groove 414 match the support shaft 47 for precise reception and positioning of the support shaft 47. By placing the support shaft 47 within the groove 414, it is ensured that the support shaft 47 maintains a stable position during fixture operation, and that it works in conjunction with the fixed clamping part 43 and the movable clamping part 44 to jointly support and clamp the workpiece. The support shaft 47 is placed horizontally in the groove 414, meaning that its axis is perpendicular to the clamping direction of the fixture and parallel to the bottom of the workpiece.

[0101] This horizontal arrangement ensures that the support shaft 47 provides continuous and uniform support along the bottom of the workpiece, avoiding localized stress concentration and helping the workpiece remain stable during clamping. "Line contact support" refers to the support shaft 47 contacting the bottom of the workpiece along a line. Compared to point or surface contact, this method provides sufficient support while reducing the contact area with the workpiece, thus reducing frictional resistance and facilitating workpiece loading and unloading. Since the fixed clamping part 43 and the movable clamping part 44 in the above scheme can be perfectly adapted to the shape of the clamping blank, their tops only need line support via the support shaft 47. Line contact support helps to accurately determine the bottom position of the workpiece, improves clamping positioning accuracy, and effectively prevents sagging or deformation of the workpiece during processing due to its own weight or cutting forces.

[0102] Through the above technical solution, a groove 414 is provided on the bottom surface of the receiving groove 411 of the base 41, and a support shaft 47 is placed horizontally. This support shaft 47 can form a stable line contact support with the bottom of the workpiece to be processed. This bottom support, combined with the lateral clamping of the fixed clamping part 43 and the moving clamping part 44, forms a three-point or multi-point support clamping system, effectively solving the problems of workpiece sagging, vibration, or inaccurate positioning that may occur when relying solely on lateral clamping. Specifically, the line contact support of the support shaft 47 can accurately restrict the workpiece's degree of freedom in the vertical direction, preventing the workpiece from deforming or displacing due to gravity or cutting force during processing, thereby significantly improving the workpiece's clamping stability, positioning accuracy, and processing quality. At the same time, the line contact design also makes the loading and unloading of the workpiece more convenient and reduces the risk of damage to the workpiece surface. Furthermore, the use of line contact support also forms a certain gap in the receiving groove 411 at the lower end of the clamping blank, which is used to accommodate iron chips generated during cutting, preventing iron chips from entering and affecting the clamping accuracy.

[0103] exist Figure 6 and 7 In the illustrated scheme, the torque amplification mechanism is specifically a linkage-type torque amplification mechanism. This linkage-type torque amplification mechanism is a mechanism that utilizes the geometric configuration changes of the linkage to amplify mechanical force. Its characteristics include providing a stable and predictable force amplification effect, making it particularly suitable for scenarios requiring force transmission over a large stroke range and high force output at specific locations. Specifically, the linkage-type torque amplification mechanism includes a first linkage 4611 and a second linkage 4612 that are hinged to each other. These two linkages are connected by a common hinge axis point, forming a basic linkage unit, which is the core component for achieving torque amplification. The other end of the first linkage 4611 is hinged to a hinge seat recess 4121 located within the first sidewall 412. This hinge point serves as a fixed fulcrum for the linkage mechanism, providing a stable reference for the entire mechanism and ensuring the certainty of the force transmission path and direction. The other end of the second linkage 4612 is hinged to the movable clamping seat 42. This connection point allows the output force of the linkage mechanism to act directly on the movable clamping seat 42, thereby driving the moving clamping part 44 to move relative to the fixed clamping part 43. The output end of the driver 45 is connected to the hinge point of the first link 4611 and the second link 4612 through the transmission member 48. The function of the transmission member 48 is to transmit the linear or rotational motion and force generated by the driver 45 to the hinge point of the linkage mechanism. This hinge point is the position where the driving force is input, and the changes in its motion trajectory and force direction will directly affect the angle between the first link 4611 and the second link 4612, thus determining the amplification factor and the magnitude of the output force of the torque amplification mechanism.

[0104] Through the above technical solution, by employing a linkage-type torque amplification mechanism, this application can achieve stable and predictable torque amplification of the output force of the driver 45. The hinged connection between the first linkage 4611 and the second linkage 4612, and their connection with the base 41 and the movable clamping seat 42, form a clear mechanical transmission chain. When the driver 45 acts on the hinge axis of the two linkages through the transmission member 48, the geometric characteristics of the linkage mechanism can be utilized to convert the smaller driving force into a larger clamping force at the end of the clamping stroke through the change of the linkage angle. This effectively overcomes the problems of low force transmission efficiency and unstable amplification effect that may exist in traditional torque amplification mechanisms, ensuring that the fixture can provide a high and stable clamping force when clamping the workpiece. This design enables the fixture to not only provide sufficient initial clamping force when clamping the workpiece, but also to significantly increase the clamping force in the final stage of the clamping stroke through the mechanical advantages of the linkage mechanism, thereby improving the stability and reliability of clamping.

[0105] In a specific implementation, the driver 45 is a cylinder, and a mounting cavity for accommodating the cylinder is provided below the receiving groove 411; or a through hole 416 for the output shaft of the cylinder to pass through is provided below the receiving groove 411, and the cylinder is located at the bottom of the base 41. Specifically, the driver 45 is set as a cylinder. A cylinder is an actuator that uses compressed air as a power source to generate thrust or pull force by the reciprocating motion of a piston in the cylinder body. Its characteristics are simple structure, fast response speed, large output force, easy control, and relatively low cost. In this application, a cylinder is selected as the driver 45 to provide a stable and controllable linear motion input for the linkage torque amplification mechanism to drive the linkage mechanism to amplify torque. The output shaft of the cylinder is usually connected to the transmission component 48 of the linkage mechanism, converting the linear thrust of the cylinder into the motion of the linkage mechanism, thereby realizing the relative movement between the moving clamping part 44 and the fixed clamping part 43.

[0106] To achieve effective cylinder integration, this application provides two mounting methods. The first method involves a mounting cavity below the receiving groove 411 for accommodating the cylinder. The mounting cavity is a space specifically reserved for the cylinder inside or below the base 41. This design allows the cylinder to be fully or partially integrated into the structure of the base 41, effectively reducing the overall external dimensions of the fixture and improving structural compactness. The size and shape of the mounting cavity are precisely designed according to the selected cylinder model and size to ensure stable installation and accurate alignment of its output shaft with the transmission component 48 of the linkage mechanism. This built-in mounting method helps protect the cylinder from external environmental influences and reduces external interference. The second method involves a through hole 416 below the receiving groove 411 for the cylinder's output shaft to pass through, with the cylinder located at the bottom of the base 41. The through hole 416 is a through-hole on the base 41 reserved for the cylinder's output shaft, allowing the cylinder's output shaft to pass through the bottom of the base 41 and extend upwards to connect with the transmission component 48 of the linkage mechanism. In this configuration, the cylinder body can be placed entirely outside the bottom of the base 41, or partially embedded in the bottom of the base 41, transmitting the driving force to the upper linkage mechanism through the through hole 416. The advantage of this installation method is that it lowers the cylinder's center of gravity, improving the overall stability of the fixture, while also facilitating the installation, maintenance, and replacement of the cylinder. The design of the through hole 416 needs to ensure that the output shaft moves without jamming and effectively seals against dust or debris.

[0107] By specifically defining the actuator 45 as a cylinder and providing two integrated mounting schemes, this application effectively solves the problem of low integration between the actuator 45 and the main structure of the clamp. As a power source, the cylinder, with its compact structure and large output force, can provide a stable and reliable driving force for the linkage-type torque amplification mechanism, ensuring the expected amplified clamping force is generated at the end of the clamping stroke. Specifically, when the cylinder is housed in the mounting cavity below the base 41, the overall external contour of the clamp remains compact, avoiding space occupation and potential collision risks caused by the exposed actuator 45, and improving the applicability of the clamp in confined working spaces. When the cylinder is located at the bottom of the base 41 and connected to the linkage mechanism through the through hole 416, not only is the actuator 45 effectively integrated, but the center of gravity of the cylinder is also lowered, significantly enhancing the overall stability of the clamp. Especially during high-intensity clamping operations, it can effectively suppress clamp wobbling and improve clamping accuracy and reliability. Both installation methods enable the driving force to be directly and efficiently transmitted to the hinge point of the linkage mechanism, reducing energy loss in the intermediate transmission links. This ensures that the torque amplification mechanism can fully perform its function and achieve precise and powerful clamping of the workpiece.

[0108] The aforementioned actuator 45 drives the hinge points of the first link 4611 and the second link 4612 to rise and fall via the aforementioned transmission member 48, thereby changing the included angle between the first link 4611 and the second link 4612. When the first link 4611 and the second link 4612 are at 180°, the aforementioned moving clamping part 44 and the aforementioned fixed clamping part 43 move closer to each other to clamp the workpiece. Specifically, the actuator 45 transmits its output power to the hinge points of the first link 4611 and the second link 4612 via the transmission member 48, such as a push rod, connecting rod, gear rack, or cam mechanism. The design of the transmission member 48 should ensure that the motion of the actuator 45 can be effectively converted into the rising and falling motion of the hinge points. For example, if the actuator 45 is a cylinder, its piston rod can be directly or through a push rod connected to the hinge points. When the piston rod extends or retracts, the hinge points rise or fall accordingly. This rising and falling motion is the core mechanism for realizing the angle change of the linkage mechanism.

[0109] The lifting and lowering movement of the hinge point forces a change in the relative angle between the first link 4611 and the second link 4612. Since one end of the first link 4611 is hinged to the hinge seat recess 4121 within the first sidewall 412, and one end of the second link 4612 is hinged to the movable clamping seat 42, when the driver 45 moves the hinge point, the relative positions of the two links change, resulting in a change in the included angle between them. This angle change is the key principle behind the torque amplification of the linkage-type torque amplification mechanism. By precisely controlling the lifting and lowering stroke of the hinge point, precise control of the range of change in the included angle of the links can be achieved.

[0110] When the first link 4611 and the second link 4612 are at 180°, it means that the two links are collinear. In a linkage mechanism, when the two links are close to or reach a 180° collinear state, their output force (i.e., the force acting on the movable clamping seat 42) will reach its theoretical maximum value because the mechanical efficiency of the mechanism is the highest and the torque amplification factor is the greatest at this time. To achieve this goal, the actuator 45 needs to be precisely controlled so that its output end drives the hinge axis to move to a preset position, so that the first link 4611 and the second link 4612 reach or are very close to a 180° collinear state when clamping the workpiece. This can usually be achieved through a stroke limit device, position sensor feedback, or precise control of a high-precision actuator (such as a servo cylinder or electric cylinder). When the 180° collinear state is reached, the movable clamping part 44 will press against the fixed clamping part 43 with the maximum force, thereby achieving reliable clamping of the workpiece.

[0111] Through the above technical solution, the actuator 45 can precisely control the lifting and lowering of the hinge point of the first link 4611 and the second link 4612, effectively changing the included angle between the two links. Especially in the final stage of workpiece clamping, when the first link 4611 and the second link 4612 are driven to a collinear state of nearly 180°, the mechanical efficiency of the linkage mechanism reaches its maximum, thereby significantly amplifying the clamping force acting on the movable clamping seat 42. This precise motion control and torque amplification mechanism ensures that a large and stable clamping force can be generated at the end of the clamping stroke, effectively solving the shortcomings of traditional fixtures in clamping force control and amplification, and improving the clamping reliability and workpiece stability of the fixture. The above solution can increase the output force of the cylinder from 300 kg to 4-5 tons.

[0112] like Figure 8-13 As shown, the torque amplification mechanism is a cam-type torque amplification mechanism, which includes a swing cam 4621. The first sidewall 412 includes a left wall portion 4122 and a right wall portion 4123. A hinge seat recess 4121 is formed between the left wall portion 4122 and the right wall portion 4123. The swing cam 4621 is hinged to the hinge seat recess 4121 by a pin 4622. The cam surface 4623 of the swing cam 4621 abuts against the movable clamping seat 42, and is used to press the movable clamping seat 42 under the drive of the driver 45. Specifically, the cam-type torque amplification mechanism is a mechanism that converts input motion into specific output force or displacement characteristics through a specific profile curve of the cam. Its working principle is to utilize the contact between the cam and the follower, and through the rotation or swing of the cam, to make the follower produce a predetermined motion law, thereby realizing the amplification of force or the conversion of motion. Such mechanisms typically offer advantages such as compact structure, smooth transmission, ease of implementing complex motion laws, and the ability to generate significant output force at specific positions. The oscillating cam 4621 refers to a cam whose motion is a reciprocating oscillation around a fixed axis. Compared to rotary cams, the oscillating cam 4621 is generally suitable for applications requiring a smaller oscillation angle but demanding precise force transmission or displacement output within a specific angular range. Its design can be optimized according to the desired force amplification curve to provide the required force output at specific stages of the clamping stroke.

[0113] The first sidewall 412 is part of the base 41, and its internal structure is designed to include a left wall portion 4122 and a right wall portion 4123. A groove is formed between these two walls, namely the hinge seat recess 4121. The main function of this recess is to provide a stable mounting space and hinge point for the swing cam 4621, ensuring that the swing cam 4621 can perform precise swinging motion within it and withstand the reaction force generated during operation. The swing cam 4621 is connected to the hinge seat recess 4121 via a pin 4622. The pin 4622 serves as the rotation center of the swing cam 4621, allowing it to swing around this axis. This hinged connection ensures that the swing cam 4621 can rotate stably and reliably under the action of the driver 45, and converts the rotation into a squeezing force on the movable clamping seat 42. The size and material selection of the pin 4622 should ensure that it can withstand the shear force and bending moment generated during clamping.

[0114] The cam surface 4623 of the oscillating cam 4621 is its working surface that directly contacts the movable clamping seat 42. The shape of the cam surface 4623 is precisely designed, and its contour determines the squeezing displacement and force transmission characteristics of the oscillating cam 4621 on the movable clamping seat 42 during the oscillation process. By optimizing the curve of the cam surface 4623, a nonlinear amplification of the clamping force at the end of the clamping stroke can be achieved, thereby providing extremely high clamping force at the final clamping position while ensuring clamping speed. The output end of the driver 45 (e.g., a cylinder or hydraulic cylinder) is connected to the oscillating cam 4621. When the driver 45 is working, its output thrust or pull force causes the oscillating cam 4621 to oscillate around its hinge point. During the oscillation process, the cam surface 4623 of the oscillating cam 4621 gradually abuts against and squeezes the movable clamping seat 42, thereby pushing the movable clamping seat 42 to move towards the fixed clamping part 43, thus achieving the clamping of the workpiece.

[0115] Through the above technical solution, a cam-type torque amplification mechanism is adopted, specifically designed as a swing cam 4621. This application can effectively solve the limitations of general torque amplification mechanisms in terms of structural compactness, precise control of force transmission, and realization of specific force amplification curves. The swing cam 4621 is hinged to the hinge seat recess 4121 of the first sidewall 412 via a pin 4622, and its cam surface 4623 directly abuts against the movable clamping seat 42. When the driver 45 drives the swing cam 4621 to swing, the cam surface 4623 can convert the input force of the driver 45 into a squeezing action on the movable clamping seat 42. This design allows the clamp to achieve non-linear amplification of the clamping force through the specific contour of the cam surface 4623 throughout the entire clamping process, especially at the end of the clamping stroke. This ensures rapid approach to the workpiece while providing extremely high and controllable clamping force at the final clamping position. In addition, the compactness of the cam mechanism also makes the overall structure of the clamp more integrated, improving space utilization and the stability of the clamp.

[0116] In a specific embodiment, the actuator 45 is a hydraulic cylinder. A hydraulic cylinder mounting seat 49 is provided on the rear side of the first sidewall 412, and the hydraulic cylinder is mounted on the hydraulic cylinder mounting seat 49. The hydraulic cylinder mounting seat 49 is fixedly connected to the base 41 by bolts or integrally formed, or the base 41 has a T-slot, and the hydraulic cylinder mounting seat 49 is provided with a T-connector 492. The hydraulic cylinder mounting seat 49 is fixed to the base 41 after being inserted into the T-slot through the T-connector 492. Specifically, the actuator 45 is set as a hydraulic cylinder. As a hydraulic actuator, the hydraulic cylinder works by using the pressure of hydraulic oil to drive the piston rod to move, converting hydraulic energy into mechanical energy. The hydraulic cylinder has significant advantages such as large output force, smooth transmission, high rigidity, and fast response speed, making it very suitable as a drive source for clamps that require large clamping forces. By using high-pressure oil generated by a hydraulic pump to push the piston, the hydraulic cylinder can provide a strong thrust or pull force, thereby effectively driving the torque amplification mechanism.

[0117] The cylinder mounting base 49 is a structural component used to fix the cylinder. This mounting base is typically designed to withstand the reaction force generated by the cylinder during operation and ensures precise alignment between the cylinder output shaft's movement direction and the swing direction of the swing cam 4621 or the movement direction of the movable clamping seat 42, thereby achieving effective transmission of driving force. Mounting the cylinder on the rear side of the first sidewall 412 fully utilizes the structural space of the base 41 and ensures that the driving force can act efficiently and directly on the torque amplification mechanism. The design of the mounting base needs to comprehensively consider the cylinder's size, weight, and stress conditions during operation to ensure the stability and reliability of the installation. The connection between the cylinder mounting base 49 and the base 41 can be achieved by bolt fixing or integral molding. Bolting is a common mechanical connection method, using bolts, nuts, and washers to tightly connect two or more components. This connection method provides flexibility in installation and disassembly, facilitating cylinder maintenance and replacement. By selecting appropriate grade bolts and applying preload, the strength and rigidity of the connection can be ensured, effectively preventing loosening or deformation due to stress during clamping. One-piece molding means that the cylinder mounting base 49 and the base 41 are formed into a single structure during the manufacturing process, such as through casting, welding, or integral machining. This method can maximize the structural rigidity and strength between the two, eliminate potential weaknesses at the connection interface, and thus ensure the overall stability of the fixture when subjected to huge clamping forces.

[0118] Furthermore, a T-slot may be provided on the base 41, and a T-connector 492 is provided on the cylinder mounting seat 49. The T-slot and T-connector 492 are a common mechanical connection structure. The T-slot is typically used to provide an adjustable mounting position. The T-connector 492 cooperates with the T-slot to achieve quick positioning and fixing of the component. This connection method provides the cylinder mounting seat 49 with adjustable mounting position, allowing adjustment of the cylinder's position relative to the base 41 within a certain range. This enables fine-tuning of the cylinder's output direction or stroke start point to adapt to different workpieces or clamping requirements. After the T-connector 492 is inserted into the T-slot, it is usually secured in the T-slot with bolts or other fasteners to ensure a strong connection, balancing ease of installation, adjustability, and connection reliability.

[0119] Through the above technical solution, the driver 45 is specifically configured as a hydraulic cylinder and is securely mounted on the rear side of the first sidewall 412. This utilizes the hydraulic cylinder's large output force and smooth transmission characteristics to provide a powerful and stable driving force for the swing cam 4621, ensuring that the fixture generates the expected amplified clamping force at the end of the clamping stroke. The hydraulic cylinder mounting base 49 is fixedly connected to the base 41 by bolts or integrally formed, significantly enhancing the structural rigidity and connection stability between the drive system and the base 41. This effectively avoids loosening or deformation problems that may occur under high clamping forces, ensuring the long-term reliable operation of the fixture. In particular, the structural strength is optimal when integrally formed. Furthermore, the T-slot and T-connector 492 provide an adjustable mounting position for the hydraulic cylinder mounting base 49, allowing the fixture to flexibly adapt to workpieces of different sizes or shapes, achieving precise transmission of clamping force and fine-tuning of position, further improving the fixture's versatility and ease of operation.

[0120] like Figure 12 and 13 As shown, the structure of the oscillating cam 4621 includes a base 4624. The base 4624 is the main structure of the oscillating cam 4621, providing the necessary strength and rigidity for the entire cam and serving as a mounting carrier for other functional components. The base 4624 is typically made of high-strength materials, such as alloy steel or cast iron, to withstand the enormous stress generated during clamping. Its shape and dimensions are optimized according to the overall layout of the fixture and torque amplification requirements. The base 4624 is provided with a first connecting portion 4625 for hinged connection with the first sidewall 412. This first connecting portion 4625 is a key structure for achieving a rotational connection between the oscillating cam 4621 and the first sidewall 412. It typically manifests as a hole, bearing seat, or convex shaft formed in the base 4624, so that it can engage with the hinge seat recess 4121 of the first sidewall 412 via a pin 4622 or other hinge element, thereby allowing the oscillating cam 4621 to oscillate around this connecting portion.

[0121] The base 4624 is also provided with a second connecting portion 4626 for connecting to the output end of the driver 45. This second connecting portion 4626 is the interface through which the oscillating cam 4621 receives the input force from the driver 45, and its form can vary, such as a linkage arm, a connecting hole, a slot, or a boss. The output end of the driver 45 is connected to the second connecting portion 4626 via a transmission component, converting the linear or rotary motion of the driver 45 into the oscillating motion of the oscillating cam 4621. Furthermore, the base 4624 is provided with a cam working surface 4623 for abutting against the movable clamping seat 42. This cam working surface 4623 is the surface on which the oscillating cam 4621 directly contacts and applies force to the movable clamping seat 42. Its geometry is precisely designed to ensure that throughout the entire working stroke of the oscillating cam 4621, force is smoothly and effectively transmitted to the movable clamping seat 42 according to a predetermined torque amplification curve, thereby driving the movable clamping part 44 to clamp the workpiece.

[0122] Through the above technical solution, the internal structure of the oscillating cam 4621 is clarified, namely, it is composed of a base 4624, on which a first connecting part 4625, a second connecting part 4626, and a cam working surface 4623 are integrated. This structured design makes the functional division of the oscillating cam 4621 clear, and the responsibilities of each part are well-defined. The first connecting part 4625 ensures that the oscillating cam 4621 can stably oscillate around the first sidewall 412 as a fulcrum, providing a reliable rotation center for torque amplification. The second connecting part 4626 provides a clear point of application for the output force of the driver 45, ensuring that the driving force can be efficiently and accurately converted into the oscillating motion of the oscillating cam 4621. Most importantly, the setting of the cam working surface 4623 enables the oscillating cam 4621 to smoothly transmit the amplified force to the movable clamping seat 42 with a preset geometry and contact method, thereby effectively overcoming the problems of low force transmission efficiency and unstable clamping force that may be caused by the unclear structure of the oscillating cam 4621. This sophisticated structural design not only optimizes the performance of the torque amplification mechanism but also improves the overall reliability and clamping accuracy of the fixture, ensuring that the expected amplified clamping force can be stably generated at the end of the clamping stroke.

[0123] In a specific implementation, the cam working surface 4623 is configured such that, from the position where the swing cam 4621 begins to contact the movable clamping seat 42 to the final clamping position, the distance from the axis of the first connecting portion 4625 on the cam working surface 4623 gradually increases. Specifically, the cam working surface 4623 refers to the surface on the swing cam 4621 that directly contacts the movable clamping seat 42 and transmits force. Its geometry is specially designed to optimize force transmission efficiency and the trend of clamping force variation. The phrase "from the position where the swing cam 4621 begins to contact the movable clamping seat 42 to the final clamping position" defines the entire stroke range in which the cam working surface 4623 functions, covering the entire process from when the swing cam 4621 begins to push the movable clamping seat 42 until the workpiece is fully clamped, ensuring that the mechanical characteristics meet design requirements during the critical clamping stage. The phrase "the distance from the axis of the first connecting portion 4625 on the cam working surface 4623 gradually increases" means that the profile of the swing cam 4621 is not a simple circle or a curve with a fixed radius. The first connecting portion 4625 is the rotation center of the swing cam 4621. As the swing cam 4621 rotates, the radial distance from the point on its cam working surface 4623 that contacts the movable clamping seat 42 to the rotation center gradually increases. This design allows the thrust acting on the movable clamping seat 42 to be effectively amplified when the driver 45 applies a varying torque, and this amplification effect is more significant at the end of the clamping stroke. Specifically, when the swing cam 4621 rotates, its contact point with the movable clamping seat 42 moves along the cam working surface 4623, and the distance (i.e., the lever arm) from this contact point to the rotation axis of the swing cam 4621 continuously increases.

[0124] Through the above technical solution, the cam working surface 4623 of the swing cam 4621 is designed such that the distance from the axis of the first connecting part 4625 gradually increases from the position where the swing cam 4621 first contacts the movable clamping seat 42 to the final clamping position, thereby effectively solving the problem of insufficient clamping force at the end of the clamping stroke. Specifically, when the driver 45 drives the swing cam 4621 to rotate, the effective lever arm (i.e., the distance from the contact point to the axis of rotation) on the cam working surface 4623 gradually increases as the clamping process proceeds, allowing the torque applied by the driver 45 to be converted into a larger thrust acting on the movable clamping seat 42. Especially at the end of the clamping stroke, when the workpiece is gradually clamped, this lever arm reaches its maximum value, thereby generating a significantly increased clamping force. This design ensures that the fixture can provide a strong and stable clamping force in the final stage of workpiece clamping, significantly improving the clamping performance and reliability of the fixture, allowing the workpiece to be firmly fixed, meeting the needs of high-precision machining or heavy-duty clamping.

[0125] like Figure 8-10As shown, the movable clamping seat 42 is movably configured via a guide shaft 410 passing through a guide hole in the first sidewall 412. The front end of the guide shaft 410 is fixedly connected to both sides of the movable clamping seat 42, and an elastic reset member 420 for resetting the movable clamping seat 42 is sleeved on the guide shaft 410. Specifically, the guide shaft 410 is a slender rod-shaped component whose main function is to provide a precise linear motion trajectory for other components. In this embodiment, the guide shaft 410 passes through the guide hole in the first sidewall 412 and is fixedly connected to the movable clamping seat 42, thereby ensuring that the movable clamping seat 42 can move smoothly and accurately along a preset straight path under the drive of the swing cam 4621, avoiding skewing or jamming during clamping or releasing. The guide shaft 410 is usually made of a high-strength, wear-resistant metal material, such as hardened steel or stainless steel, to ensure its rigidity and service life. Its surface can be finely ground or chrome-plated to reduce frictional resistance and improve guiding accuracy. The guide shaft 410 can be one or more, depending on the size of the movable clamp 42 and the required stability.

[0126] The guide hole is a precision hole set in the first sidewall 412, and its inner wall fits tightly with the outer diameter of the guide shaft 410. The guide hole and the guide shaft 410 together form a linear guide pair, providing stable motion support and precise guidance for the movable clamping seat 42. The machining accuracy of the guide hole is crucial, and high-precision machining processes such as boring and grinding are usually used to ensure that its inner diameter, roundness, and straightness meet the requirements. The inner wall of the guide hole can be lined with a self-lubricating bearing or a copper sleeve to further reduce friction and extend its service life.

[0127] The elastic reset element 420 is a mechanical component capable of storing and releasing elastic potential energy, such as a spring (compression spring, tension spring, torsion spring, etc.), rubber pad, or elastomer. When the driver 45 releases the driving force on the movable clamping seat 42, the elastic reset element 420 can automatically push the movable clamping seat 42 back to its initial position or release position, thereby realizing the automatic reset of the clamp, improving operating efficiency and simplifying the operation process. In this embodiment, the elastic reset element 420 is sleeved on the guide shaft 410, with one end abutting against the inner side of the first side wall 412 and the other end abutting against the movable clamping seat 42. When the movable clamping seat 42 is pressed forward by the swing cam 4621, the elastic reset element 420 is compressed and stores energy; when the swing cam 4621 rotates and releases the compression, the elastic reset element 420 releases energy, pushing the movable clamping seat 42 to reset backward. The commonly used elastic reset element 420 is a helical compression spring, and its stiffness should be selected according to the reset force requirements and stroke of the clamp.

[0128] Through the above technical solution, a guide hole is provided on the first sidewall 412, through which the guide shaft 410 passes, and the front end of the guide shaft 410 is fixedly connected to both sides of the movable clamping seat 42, providing precise linear motion guidance for the movable clamping seat 42. This ensures that the movable clamping seat 42 can move smoothly and without deviation along the preset trajectory under the drive of the swing cam 4621, significantly improving the stability and accuracy of the clamping process and avoiding uneven clamping force or workpiece damage caused by unstable movement. At the same time, the elastic reset member 420 sleeved on the guide shaft 410 can automatically push the movable clamping seat 42 to reset after the driver 45 releases the clamping force, without additional manual or mechanical intervention, greatly simplifying the operation process, shortening the cycle time of the fixture, and thus improving the overall processing efficiency. This design effectively solves the problems of inaccurate guidance and untimely reset that may exist in the movement of the movable clamping seat 42, making the operation of the fixture more reliable and efficient.

[0129] Furthermore, an adjusting screw 430 is provided between the swing cam 4621 and the movable clamping seat 42. Specifically, the movable clamping seat 42 has a through hole 421, and the adjusting screw 430 is disposed within the through hole 421, with its rear end extending out of the through hole 421 and abutting against the swing cam 4621. Simultaneously, to ensure that the clamping function is not affected, the front end of the adjusting screw 430 does not extend beyond the clamping surface of the movable clamping seat 42. This adjusting screw 430, by rotation, is used to adjust the relative position between the movable clamping seat 42 and the swing cam 4621, thereby achieving fine-tuning of the position of the workpiece or the clamping force.

[0130] The adjusting screw 430 is typically a threaded rod-shaped component, with one end having a head for rotation (e.g., hexagonal, cross-grooved, or knurled), and the other end abutting against the swing cam 4621. The through hole 421 is a cavity on the movable clamping seat 42 designed to accommodate the adjusting screw 430. Its inner wall may have threads that mate with the threads of the adjusting screw 430, or the adjusting screw 430 may be fixed within the through hole 421 by a nut to allow axial movement during rotation. When the operator rotates the adjusting screw 430, due to the helical motion characteristics of the thread, the adjusting screw 430 extends or retracts along its axis, thereby changing the effective distance between its rear end and the swing cam 4621. This change in distance directly affects the initial or final clamping position of the movable clamping seat 42 when the swing cam 4621 drives it. In this way, the initial position of the clamped workpiece can be preset, or the clamping force can be finely adjusted during clamping.

[0131] By setting an adjusting screw 430 between the swing cam 4621 and the movable clamping seat 42, with its rear end abutting against the swing cam 4621 and its front end not exceeding the clamping surface of the movable clamping seat 42, this application provides a convenient and effective fine-tuning mechanism. When precise clamping of workpieces of different sizes is required, the operator can rotate the adjusting screw 430 to change its extension length, thereby precisely adjusting the position of the movable clamping seat 42 relative to the swing cam 4621. This adjustment directly affects the distance between the moving clamping part 44 and the fixed clamping part 43, thereby achieving fine control of the clamping position or clamping force of the workpiece to be processed. This not only improves the adaptability and versatility of the fixture, enabling it to cope with small deviations in workpiece size, but also ensures the precise application of clamping force, avoiding workpiece damage or unstable clamping due to excessive or insufficient clamping force, and significantly improving the clamping accuracy and reliability of the fixture.

[0132] In a further embodiment, the fixed clamping part 43 is directly formed by the inner wall of the second side wall 413, and the movable clamping part 44 is directly formed by the inner wall of the movable clamping seat 42; alternatively, the fixed clamping part 43 and the movable clamping part 44 are clamping components independent of the second side wall 413 and the movable clamping seat 42, respectively, with the fixed clamping part 43 fixed to the inner wall of the second side wall 413 and the movable clamping part 44 fixed to the inner wall of the movable clamping seat 42. Specifically, when the fixed clamping part 43 is directly formed by the inner wall of the second side wall 413, it means that the inner surface of the second side wall 413, after precision machining, directly serves as the fixed clamping surface for clamping the workpiece. This structure is typically formed by integral casting or machining of the second side wall 413, and its inner wall can be customized according to the shape requirements of the workpiece, such as forming a plane, V-groove, or arc surface. To improve clamping performance and wear resistance, the inner wall surface can be quenched, carburized, or coated. Similarly, when the movable clamping part 44 is directly formed by the inner wall of the movable clamping seat 42, the inner surface of the movable clamping seat 42 is also treated similarly and directly serves as the movable clamping surface for clamping the workpiece. This integrated design reduces the number of parts, simplifies the assembly process, and may improve the overall rigidity of the clamping system.

[0133] On the other hand, when the fixed clamping part 43 and the movable clamping part 44 are clamping components independent of the second sidewall 413 and the movable clamping seat 42, these clamping components are generally referred to as grippers or clamping blocks. These independent clamping components can be made of different materials than the second sidewall 413 and the movable clamping seat 42; for example, high-hardness alloy steel can be used to clamp high-hardness workpieces. The fixed clamping part 43 is fixed to the inner wall of the second sidewall 413, and its fixing method can be various methods such as bolt connection, pin positioning and bolt tightening, dovetail groove fit, etc., to ensure that the clamping component is stable in position and easy to replace during the clamping process. For example, the clamping component can be fixed to the reserved mounting hole of the second sidewall 413 from the outside or inside by bolts. Similarly, the movable clamping part 44 is fixed to the inner wall of the movable clamping seat 42, and its fixing method is similar to that of the fixed clamping part 43, which aims to ensure the reliability and replaceability of the clamping component. Compared to the solution disclosed in CN102091803A, which is only applicable to drilling holes in specific types of locks and has poor versatility, the fixed clamping part 43 and the movable clamping part 44 in this application are clamping components independent of the second side wall 413 and the movable clamping seat 42, respectively. By replacing different types of fixed clamping parts 43 and movable clamping parts 44, the lock blank clamp 4 of this application can be adapted to lock blanks of various specifications and shapes, significantly improving the versatility of the equipment.

[0134] Through the above technical solutions, this application provides a flexible and diverse clamping part structure. When the fixed clamping part 43 and the movable clamping part 44 are directly formed by the second side wall 413 and the inner wall of the movable clamping seat 42, the overall structure of the fixture can be simplified, manufacturing costs can be reduced, and clamping rigidity can be improved, making it suitable for scenarios where the clamping part is not frequently worn or does not require frequent replacement. When the fixed clamping part 43 and the movable clamping part 44 are fixed as independent components on the inner wall of the second side wall 413 and the movable clamping seat 42, the adaptability and maintenance convenience of the fixture are greatly improved. The independent clamping components can be customized in design and material selection according to the shape, material, or clamping force requirements of different workpieces. For example, soft claws can be used to clamp easily damaged workpieces, or hard claws can be used to clamp high-hardness workpieces. In addition, when the clamping part needs to be replaced due to wear, only the independent clamping components need to be replaced, without replacing the entire second side wall 413 or the movable clamping seat 42, thereby significantly reducing maintenance costs and downtime, and extending the service life of the fixture body. This design choice allows the fixture to adapt to diverse machining needs more efficiently and economically.

[0135] In such Figure 1 and 2In the specific embodiment shown, the feeding module includes an inclined track 21 and a receiving seat 22 located at the end of the inclined track 21. A feeding pusher 23 is provided on one side of the receiving seat 22 to push the lock blank to the first lock blank clamp 4. A positioning rod 24 is also provided on the frame 1 to extend into the first lock blank clamp 4 during the feeding process and position the rear end of the lock blank. This feeding module aims to achieve automated and orderly supply of lock blanks. The inclined track 21 typically uses gravity or auxiliary thrust to guide the lock blank to be processed from the hopper or preparation area to the designated position, ensuring that the lock blank can smoothly and continuously reach the receiving seat 22. The receiving seat 22 is located at the end of the inclined track 21, and its function is to temporarily receive and stabilize a single lock blank, preparing it for subsequent pushing operations. The feeding push rod 23 is located on one side of the receiving seat 22. Through reciprocating motion, it accurately pushes the locking blank located in the receiving seat 22 into the first locking blank clamp 4 of the reciprocating feeding mechanism 3. The feeding push rod 23 can be driven by a cylinder, electric push rod or cam mechanism to achieve a stable and reliable pushing action.

[0136] The positioning rod 24 is a key component ensuring the precise positioning of the lock blank within the fixture. Typically mounted on the frame 1, the positioning rod 24 is designed to extend into the fixture at the appropriate time, contacting the rear end of the lock blank as it is pushed into the first lock blank fixture 4 by the feeding pusher 23. This contact provides a reliable mechanical stop for the lock blank, thus accurately determining its position in the feeding direction. The extension and retraction of the positioning rod 24 can be coordinated with the pushing action of the feeding pusher 23, ensuring that the positioning rod 24 retracts promptly after the lock blank is in place, avoiding interference with subsequent clamping and feeding. This positioning method effectively prevents overshooting or inaccurate positioning of the lock blank due to inertia or excessive thrust within the fixture.

[0137] Through the above technical solution, the feeding module adopts a combination of inclined rail 21, receiving seat 22, and feeding push rod 23 to realize the automated and sequential supply of lock blanks. The inclined rail 21 ensures the orderly conveying of lock blanks, the receiving seat 22 buffers and pre-positions individual lock blanks, and the feeding push rod 23 is responsible for accurately feeding the lock blank into the first lock blank clamp 4. On this basis, the positioning rod 24 set on the frame 1 extends into the clamp during the lock blank pushing process to perform precise mechanical positioning of the rear end of the lock blank. This collaborative working mechanism first ensures a stable supply of lock blanks through the inclined rail 21 and receiving seat 22, then reliably feeds the lock blank into the clamp through the feeding push rod 23, and finally provides precise longitudinal positioning by the positioning rod 24. This fundamentally solves the problem of inaccurate positioning that may occur during the initial loading of the lock blank, ensuring that each lock blank is in a preset, precise position before entering the processing flow. This provides a solid foundation for the subsequent multi-directional drilling device to simultaneously drill holes on the top, rear, and front sides of the lock blank, significantly improving the overall processing accuracy and efficiency and reducing the scrap rate.

[0138] like Figure 5As shown, the upper end face of the support base 31 and the lower end face of the lock blank clamp 4 are respectively provided with positioning grooves 311 extending along the feeding direction. The positioning grooves 311 are connected by positioning keys 32, which are used to achieve positioning between the support base 31 and the lock blank clamp 4 and to resist the relative displacement caused by lateral drilling force. Specifically, the upper end face of the support base 31 and the lower end face of the lock blank clamp 4 are respectively provided with positioning grooves 311 extending along the feeding direction. These positioning grooves 311 can be V-shaped grooves, rectangular grooves, or dovetail grooves, etc., and their extension design along the feeding direction is intended to provide precise guidance and initial positioning for the installation of the lock blank clamp 4 on the support base 31. By providing complementary groove shapes on the two mating surfaces, the degree of freedom of the lock blank clamp 4 in the horizontal direction can be effectively restricted, ensuring its positional accuracy on the support base 31. The positioning grooves 311 are connected by positioning keys 32. The locating key 32 is a mechanical connector, typically a long strip with a rectangular, square, or semi-circular cross-section. Its function is to insert into the locating groove 311 of two mating parts (here, the support 31 and the lock blank holder 4) to prevent relative sliding or rotation between them. The locating key 32 is usually made of a metal with high strength and wear resistance to withstand the stress generated during processing. This connection method is used to achieve precise positioning between the support 31 and the lock blank holder 4. Through the tight fit between the locating key 32 and the locating groove 311, the position of the lock blank holder 4 on the support 31 is firmly locked, ensuring that the lock blank's position relative to the drilling device is preset and stable when it enters each drilling station 5. Furthermore, this connection structure can effectively resist relative displacement caused by lateral drilling forces. When drilling the front or rear of the lock blank, the drill bit applies a lateral force to the lock blank, which is then transmitted to the lock blank holder 4. The cooperation between the positioning key 32 and the positioning groove 311 provides strong resistance to shearing and lateral impact, preventing the locking fixture 4 from sliding or deflecting under lateral force, thereby ensuring the drilling accuracy and the stability of the machining process.

[0139] Through the above technical solution, positioning grooves 311 extending along the feeding direction are respectively provided on the upper end face of the support 31 and the lower end face of the lock blank holder 4, and the two are connected by positioning keys 32, so that the lock blank holder 4 can be accurately fixed on the support 31. This keyway fit structure provides a reliable mechanical connection, which not only ensures the initial positioning accuracy of the lock blank holder 4 on the support 31, but more importantly, during multi-directional drilling, especially when the top drilling mechanism 61, the rear drilling mechanism 62 and the front drilling mechanism 63 drill the lock blank simultaneously, it can effectively resist the relative displacement between the lock blank holder 4 and the support 31 caused by the lateral drilling force. This significantly improves the stability of the lock blank during processing, avoids drilling deviation caused by displacement, thereby ensuring the processing accuracy and product quality of lock drilling, and improving the operational reliability of the equipment.

[0140] In a specific implementation, the top drilling mechanism 61, the rear drilling mechanism 62, and the front drilling mechanism 63 each include a drive motor 64 and a drill bit assembly 65. The drive motor 64 and the drill bit assembly 65 are mounted on an adjustment seat. An adjustment structure is provided between the adjustment seat and the frame 1. The adjustment structure includes a slotted hole on the adjustment seat and a fastener passing through the slotted hole and connecting to the frame 1, used to achieve three-dimensional position adjustment in the adjustment state. Specifically, the top drilling mechanism 61, the rear drilling mechanism 62, and the front drilling mechanism 63 are each equipped with an independent drive motor 64 and a drill bit assembly 65. The drive motor 64 provides rotational power and can be a servo motor or a stepper motor to achieve precise speed and position control, ensuring the stability and accuracy of the drilling process. The drill bit assembly 65 contains the drill bit used for actual drilling. Its type and specifications can be selected according to the blank material and hole diameter requirements, such as using a high-speed steel drill bit or a carbide drill bit.

[0141] The drive motor 64 and drill bit assembly 65 are mounted on an adjusting base. This adjusting base, serving as the support platform for the drilling mechanism, is designed with sufficient structural rigidity to effectively resist the cutting forces and vibrations generated during drilling, ensuring drilling stability. The adjusting base is typically made of high-strength metals, such as alloy steel or cast iron, to guarantee its long-term reliability.

[0142] To achieve precise alignment of the drilling mechanism, an adjustment structure is provided between the adjustment seat and the frame 1. This adjustment structure aims to provide a controllable and precise displacement capability to compensate for systematic errors or adapt to different processing requirements. Specifically, the adjustment structure includes a slotted hole on the adjustment seat and a fastener passing through the slotted hole and connecting to the frame 1. The slotted hole allows the fastener to slide within a certain range, thereby enabling the adjustment seat to move relative to the frame 1. For example, the slotted hole can extend horizontally or vertically to achieve position adjustment of the drilling mechanism in the X, Y, or Z axis directions. Fasteners, such as bolts and nuts, are used to securely lock the adjustment seat in the desired position after adjustment, preventing displacement during operation. Through the cooperation of the slotted hole and fasteners, three-dimensional position adjustment of the drilling mechanism can be achieved in the machine adjustment state. This means that the operator can make fine adjustments to the top drilling mechanism 61, the rear drilling mechanism 62, and the front drilling mechanism 63 in the X, Y, and Z directions according to actual needs, ensuring precise alignment of the drill bit with the predetermined drilling position of the locking blank. Additionally, the drilling position can be adjusted according to the lock blank that needs to be drilled.

[0143] Through the above technical solution, the drive motors 64 and drill bit assemblies 65 of the top drilling mechanism 61, the rear drilling mechanism 62, and the front drilling mechanism 63 are mounted on an adjusting seat, and the adjusting seat is connected to the frame 1 through an adjusting structure. This adjusting structure includes a slotted hole on the adjusting seat and fasteners that pass through the slotted hole and connect to the frame 1. This design allows for precise three-dimensional position adjustment of each drilling mechanism during machine adjustment. This effectively solves the problem of drilling position deviation caused by differences in lock blank size, drill bit wear, or equipment installation errors, ensuring the accuracy and consistency of simultaneous drilling in multiple directions. At the same time, this adjustment function also improves the flexibility of the equipment, enabling it to quickly adapt to the processing requirements of lock blanks of different specifications, reducing production costs and maintenance difficulty, and significantly improving processing quality and production efficiency.

[0144] like Figure 1 and 3 As shown in Figure 4, the flipping and transfer module 7 includes a flipping base 71 and a flipping driver 72 that drives the flipping base 71 to rotate. The flipping base 71 has a receiving cavity 711 adapted to the shape of the lock blank, and an opening 712 for the lock blank to enter and exit. Specifically, the flipping base 71 is the core component of the flipping and transfer module 7, and its main function is to support and fix the lock blank for precise flipping operations. The flipping base 71 is usually designed as a rotatable structure, such as a rotating clamp or a rotatable box. Its material can be a high-strength, wear-resistant metal material, such as alloy steel or aluminum alloy, to ensure stability and reliability during long-term operation. The external structure of the flipping base 71 can be designed into different shapes according to actual needs, but its internal structure must be closely matched with the geometry of the lock blank.

[0145] The flip driver 72, which drives the flip base 71 to rotate, is a device that provides rotational power to the flip base 71, ensuring that the lock blank can be precisely flipped at a preset angle. This driver can take various forms, such as a servo motor, a stepper motor with a reduction gear, or a pneumatic / hydraulic rotary actuator. Servo motors and stepper motors provide high-precision angle control and positioning, suitable for scenarios requiring precise flip angles; pneumatic / hydraulic actuators are characterized by simple structure and fast response speed. The flip driver 72 is connected to the flip base 71 via a coupling, gear drive, or belt drive, transmitting rotational power to the flip base 71.

[0146] The flipping base 71 has an internal receiving cavity 711 adapted to the shape of the lock blank. This receiving cavity 711 is the space inside the flipping base 71 for placing the lock blank. Its shape and size are precisely designed to fit closely to the shape of the lock blank to be processed. This adaptive design ensures that the lock blank can be stably positioned and supported after being loaded into the receiving cavity 711, effectively preventing shaking, displacement, or falling during flipping or transfer, thereby ensuring processing accuracy and avoiding damage to the lock blank. The surface of the receiving cavity 711 can be specially treated, such as by adding an anti-slip coating or cushioning material, to further improve the fixing effect and protection of the lock blank.

[0147] The flipping seat 71 has an opening 712 for the lock blank to enter and exit. This opening 712 is a channel on the flipping seat 71 for the lock blank to enter and exit the receiving cavity 711. The opening 712 is typically located on the side or top of the flipping seat 71, and its size and position are optimized for smooth docking with the upstream lock blank holder 4 or the downstream next lock blank holder 4. The design of the opening 712 should take into account the geometry and direction of entry and exit of the lock blank, ensuring that the lock blank can be pushed in or pushed out without obstruction. In some embodiments, the opening 712 may be designed as an openable door or cover to completely close the receiving cavity 711 during flipping, further enhancing the locking effect and security of the lock blank.

[0148] Through the above technical solution, the flipping and transfer module 7, by setting up a flipping seat 71, a flipping driver 72, a receiving cavity 711 adapted to the shape of the lock blank, and an opening 712 for the lock blank to enter and exit, effectively solves the problems of inaccurate positioning, shaking, or damage that may occur during the transfer and flipping of the lock blank. Specifically, the receiving cavity 711 inside the flipping seat 71 can closely fit the lock blank, providing it with stable support and precise positioning, ensuring that the lock blank always maintains the preset posture during the flipping process. The flipping driver 72 can precisely control the rotation angle and speed of the flipping seat 71, realizing the smooth and controllable flipping of the lock blank. At the same time, the design of the opening 712 on the flipping seat 71 allows the lock blank to enter and exit the receiving cavity 711 efficiently and smoothly, avoiding manual intervention or complex robotic arm operations, thereby improving the transfer efficiency. This structure ensures the reliability and accuracy of the transfer and flipping of the lock blank between different workstations, providing a stable foundation for subsequent drilling processing, and thus improving the automation level and processing quality of the entire automatic lock drilling machine.

[0149] Furthermore, the flipping and transferring module 7 also includes a first transfer component 73 and a second transfer component 74. The first transfer component 73 is used to push the lock blank from the lock blank clamp 4 to the receiving cavity 711, and the second transfer component 74 is used to push the lock blank from the receiving cavity 711 to the next lock blank clamp 4. The first transfer component 73 is a mechanism for accurately pushing the lock blank from its clamped state by the lock blank clamp 4 into the receiving cavity 711 inside the flipping seat 71. This component can be implemented in various ways; for example, it can be a push rod mechanism driven by a cylinder or electric push rod, and the end of the push rod can be designed to fit the shape of the lock blank to ensure stability and positioning accuracy during the pushing process. After the lock blank clamp 4 reaches the position of the flipping and transferring module 7 and releases the lock blank, the first transfer component 73 is activated, smoothly pushing the lock blank into the receiving cavity 711 of the flipping seat 71 along a preset path, completing the loading of the lock blank.

[0150] The second transfer assembly 74 is a mechanism for ejecting and transferring a lock blank that has been processed or flipped within the receiving cavity 711 of the flipping seat 71 to the next lock blank fixture 4. Similar to the first transfer assembly 73, the second transfer assembly 74 can also be driven by a cylinder or an electric push rod, whose push rod also needs to match the shape and size of the lock blank. After the flipping seat 71 completes its operation and positions the lock blank at the discharge position, the second transfer assembly 74 is activated, ejecting the lock blank from the receiving cavity 711 and guiding it into the next ready lock blank fixture 4, thereby achieving the unloading of the lock blank and the connection to subsequent workstations.

[0151] Through the above technical solution, the first transfer component 73 and the second transfer component 74 are set up to realize the automated and precise transfer of lock blanks within the flipping and transfer module 7. The first transfer component 73 can accurately push the lock blank from the lock blank holder 4 into the receiving cavity 711 of the flipping seat 71, avoiding positioning deviations or lock blank damage that may be caused by manual intervention or inaccurate robotic arm operation. After the lock blank has been flipped or transferred, the second transfer component 74 is responsible for smoothly pushing it out of the receiving cavity 711 and accurately delivering it to the next lock blank holder 4, thereby ensuring the continuity and efficiency of the entire automated punching production line. This design greatly improves the reliability and efficiency of lock blank transfer between different workstations, effectively solves the automation problem of loading and unloading lock blanks within the flipping and transfer module 7, and ensures the smooth operation of multi-station parallel processing.

[0152] It should be noted that, in addition to pushing and transferring the lock blank, the first transfer component 73 and the second transfer component 74 also serve a positioning function. Specifically, when the second transfer component 74 pushes the lock blank from the receiving cavity 711 to the next lock blank fixture 4, the end of the first transfer component 73 simultaneously extends into the lock blank fixture 4 to limit the rear end of the lock blank, acting similarly to the positioning rod 24 to ensure the positional accuracy of the lock blank during the transfer process. This positioning method effectively avoids positional deviations caused by inertia or uneven thrust during the transfer process, further improving the stability of the transfer and the accuracy of subsequent processing.

[0153] In the above scheme, the reciprocating feeding mechanism 3 drives multiple lock blank clamps 4 to move synchronously. Each lock blank clamp 4 corresponds sequentially to the loading module, each drilling station 5, each flipping and transferring module 7, and the unloading module along the movement path, so as to realize the loading, drilling, transfer or flipping, and unloading of the lock blanks respectively. Specifically, the reciprocating feeding mechanism 3 drives multiple lock blank clamps 4 to move synchronously, which describes the core motion mode of the feeding mechanism. The reciprocating feeding mechanism 3 drives the carrier 31 and the multiple lock blank clamps 4 fixed on it to move synchronously as a whole through periodic forward and backward movements. This synchronous movement ensures that all lock blank clamps 4 arrive at their corresponding stations at the same time, providing a basis for subsequent parallel processing operations. For example, a servo motor-driven lead screw or rack and pinion mechanism can be used, combined with precise sensors and a control system, to realize the reciprocating motion of the carrier 31 and ensure its positioning accuracy.

[0154] Simultaneously, each lock blank fixture 4 corresponds sequentially to the feeding module, each drilling station 5, each flipping and transferring module 7, and the discharging module along its movement path. This technical feature clarifies the spatial and temporal correspondence of the lock blank fixture 4 throughout the entire processing flow. In the feeding direction, the feeding module, each drilling station 5, each flipping and transferring module 7, and the discharging module are arranged compactly according to a preset spacing and sequence. When the reciprocating feeding mechanism 3 drives the lock blank fixture 4 to move, each lock blank fixture 4 will precisely stop at its corresponding module position, thus forming a continuous automated production line. This sequential correspondence is key to achieving multi-station parallel processing and continuous flow.

[0155] Based on this, the loading, drilling, transfer or flipping, and unloading of the lock blanks are realized respectively. This technical feature further clarifies the specific functions carried out by the lock blank fixture 4 at each corresponding module. At the loading module, the lock blank is precisely fed into the idle lock blank fixture 4, completing the initial positioning and clamping of the lock blank. At each drilling station 5, the lock blank fixture 4 stably positions the clamped lock blank below the multi-directional drilling device, so that the top drilling mechanism 61, the rear drilling mechanism 62, and the front drilling mechanism 63 can simultaneously drill the top, rear, and front sides of the lock blank. At each flipping and transfer module 7, the processed lock blank can be taken out from the current lock blank fixture 4 and transferred to the next lock blank fixture 4, or flipped in the flipping seat 71 to prepare for the next stage of processing or posture adjustment. At the unloading module, the lock blanks with all processing steps completed are released from the lock blank fixture 4 and sent out of the drilling machine for subsequent processes or collection.

[0156] Through the above technical solution, the automatic lock punching machine can achieve full automation and seamless connection of the entire process, from lock blank loading, multi-directional drilling, transfer or flipping between workstations, to final discharge. The reciprocating feeding mechanism 3 drives multiple lock blank clamps 4 to move synchronously, precisely corresponding sequentially to the feeding module, each punching station 5, each flipping and transfer module 7, and the discharge module along the movement path. This ensures that each lock blank receives timely and accurate processing at each stage. This clear functional correspondence and synchronous movement mechanism greatly improves the overall automation level and production efficiency of the equipment, reduces manual intervention, and ensures the continuity and stability of the processing, making the lock blank processing flow smoother and more efficient.

[0157] exist Figure 1 In a further preferred embodiment, the automatic lock drilling machine further includes a conveyor track and a pin hole processing device 10. The conveyor track is located between the discharge module and the pin hole processing device 10, and is used to convey the completed lock blank to the pin hole processing device 10. The pin hole processing device 10 has a degree of freedom of movement and is used to sequentially process multiple pin holes on the lock blank.

[0158] Specifically, the conveyor track is a mechanical structure used to carry and guide the lock blank from the discharge module to the pin hole processing device 10. Its function is to achieve automatic and continuous transfer of the lock blank, thereby avoiding manual handling or the intervention of additional transfer equipment. Its structure can be designed as single-channel or multi-channel according to actual needs, and can integrate sensors to detect the presence, position, and count of the lock blank, ensuring a smooth and accurate conveying process.

[0159] The pin tumbler hole machining device 10 is a specialized device for drilling or milling pin tumbler holes on a lock blank. Pin tumbler holes are typically precision small holes used to install the pins inside the lock cylinder. This device performs subsequent precision machining on the lock blank to complete the pin tumbler hole fabrication, thereby improving the overall automation level of lock manufacturing. The pin tumbler hole machining device 10 may include one or more precision drill bits, which are driven by servo motors and whose feed and positioning are precisely controlled by a CNC system. During machining, a corresponding clamping mechanism is usually provided to stabilize the lock blank. Furthermore, a cooling system may be provided to extend tool life and ensure machining quality.

[0160] The pinhole machining device 10 has a degree of freedom of movement, used to sequentially machine multiple pinholes on the lock blank. This degree of freedom ensures that the pinhole machining device 10 can accurately position each pinhole on the lock blank that needs to be machined, and machine them in a preset order. This degree of freedom of movement is usually achieved through a servo motor-driven linear guide, ball screw, or rack and pinion mechanism. For example, the pinhole machining device 10 can be mounted on an XYZ three-axis motion platform, and its movement above the lock blank can be controlled by programming to sequentially align with different pinhole positions for drilling. Alternatively, the device can also be mounted at the end of a multi-joint robot arm, achieving multi-degree-of-freedom positioning through the flexible movement of the robot arm. "Sequential machining" means that the system can complete the machining of all pinholes on the lock blank one by one according to a preset program or sequence. This usually requires the use of a vision recognition system or a precise mechanical positioning system to determine the position of each pinhole to ensure machining accuracy and efficiency.

[0161] Through the above technical solution, this application seamlessly connects the drilling process of the lock blank with the pin hole processing process. The conveyor track realizes the automated transfer of the lock blank from the completed drilling to the pin hole processing device 10, eliminating the need for manual handling in the intermediate links, thereby avoiding errors and efficiency losses that may be introduced by manual operation. The pin hole processing device 10, with its degree of freedom of movement, can accurately and efficiently complete the processing of multiple pin holes on the lock blank sequentially, thus integrating two key processes that originally might have required separate equipment and manual operation into one automated device. This significantly improves the automation level and overall production efficiency of lock production, reduces production cycle and labor costs, while ensuring the processing accuracy and consistency of the pin holes, avoiding positioning errors that may be caused by multiple transfers, making the entire lock processing flow smoother and more efficient.

[0162] This embodiment further proposes an improved conveying track, which includes a first conveying section 91 and a second conveying section 92 arranged in parallel. The end of the first conveying section 91 is located above the beginning of the second conveying section 92. A flipping guide 93 is provided between the first conveying section 91 and the second conveying section 92 to control the flipping of the lock blank. Specifically, the conveying track is a structure used to guide and support the lock blank from the discharge module to the pin hole processing device 10. The track is typically composed of guide rails, supports, etc., and is designed to ensure that the lock blank moves smoothly and accurately along a predetermined path. In this application, the main function of the conveying track is to smoothly transport the lock blank, after preliminary drilling, from the discharge module to the pin hole processing device 10, providing a material flow channel for subsequent fine processing.

[0163] The first conveying section 91 and the second conveying section 92 are two independent but interconnected parts of the conveying track, together forming a segmented conveying path. They can consist of independent guide rail structures or two functional areas divided on the same long track. Parallel arrangement means they maintain a certain distance or alignment in the horizontal direction, while the fact that the end of the first conveying section 91 is above the beginning of the second conveying section 92 indicates a height difference in the vertical direction, forming a conveying path with varying elevations. This elevation difference can be achieved through the support structure or the inclined design of the track itself. This segmented, staggered arrangement provides the structural basis for introducing a flipping mechanism during conveying, allowing the lock blank to be guided to flip as it moves from one segment to another.

[0164] The flipping guide 93 is a mechanical structure designed to contact the moving lock blank and, using its shape, angle, or motion characteristics, force or guide the lock blank to change its posture or orientation during transport, thus achieving flipping. The flipping guide 93 can be an inclined plane fixed between tracks, a spiral guide groove, a guide block with a specific curve, or a moving component driven by a cylinder or motor. For example, it can be a guide plate with a torsion angle; as the lock blank slides along its surface, the change in contact surface with the guide plate naturally causes the lock blank to flip. Alternatively, it can be two opposing guide blocks that compress or guide the sides of the lock blank, causing it to rotate as it passes through. The flipping guide 93 is a key component for achieving automatic flipping of the lock blank. It ensures that the lock blank can be adjusted to the correct processing posture before entering the pinhole processing device 10, thereby avoiding manual intervention and improving automation and processing accuracy.

[0165] Through the above technical solution, the conveying track is designed to include a first conveying section 91 and a second conveying section 92 arranged in parallel, with the end of the first conveying section 91 located above the beginning of the second conveying section 92, forming a conveying path with a height difference. Based on this, a flipping guide 93 is cleverly set between the first conveying section 91 and the second conveying section 92, allowing the lock blank to be precisely guided by the flipping guide 93 during its descent from the first conveying section 91 to the second conveying section 92, achieving a preset posture flip. This design effectively solves the problem of needing to adjust the posture of the lock blank after completing the initial drilling to adapt to subsequent pin hole processing. It avoids the tediousness and uncertainty of manual intervention in lock blank flipping, significantly improving the automation level and production efficiency of the entire processing flow. Simultaneously, it ensures that the lock blank enters the pin hole processing device 10 in the correct direction, thereby guaranteeing the accuracy and quality of pin hole processing and reducing the scrap rate.

[0166] In a further embodiment, there are multiple ball hole processing devices 10, which are connected in series along the conveying direction of the conveying track, or there are multiple conveying tracks, which are connected in parallel and each conveying track is equipped with a corresponding ball hole processing device 10.

[0167] Specifically, the number of pin hole processing devices 10 is set to multiple, aiming to improve the efficiency and capacity of the pin hole processing stage. Multiple pin hole processing devices 10 can work together in different configurations according to specific production needs and the complexity of the lock blank, in order to adapt to the needs of high-cycle production or multi-process processing.

[0168] In one embodiment, multiple pin hole machining devices 10 are arranged in series along the transport direction of the transport track. This means that the lock blank passes through each pin hole machining device 10 sequentially on the transport track. Each series-connected pin hole machining device 10 can be configured to perform a specific pin hole machining task; for example, the first device is responsible for drilling pin holes at a specific location, the second device is responsible for drilling pin holes at another location, or each device is responsible for completing different stages in the pin hole machining process (such as roughing and finishing). Through this series arrangement, complex pin hole machining tasks can be decomposed into multiple sub-tasks, which are completed in parallel or sequentially by different devices, thereby shortening the total dwell time of a single lock blank in the pin hole machining stage.

[0169] In another embodiment, multiple conveyor tracks are used, arranged in parallel, with each track corresponding to a pin hole processing device 10. In this configuration, lock blanks that have undergone preliminary drilling can be diverted to different parallel conveyor tracks. Each pin hole processing device 10 on each parallel track independently processes the received lock blanks. For example, a diversion mechanism can evenly distribute the lock blanks to each parallel track, allowing multiple lock blanks to undergo pin hole processing simultaneously. This parallel layout significantly improves the parallel processing capability of the pin hole processing stage, thereby greatly enhancing the overall production efficiency and throughput of the entire automatic lock drilling machine.

[0170] Through the above technical solutions, this application provides two efficient solutions to address potential production bottlenecks in the pin hole processing stage. When multiple pin hole processing devices 10 are connected in series, the complex pin hole processing task can be decomposed and completed by different devices in stages or areas, effectively shortening the processing cycle of a single lock blank and improving processing efficiency. When multiple conveyor tracks are connected in parallel, with each track corresponding to one pin hole processing device 10, parallel processing of multiple lock blanks in the pin hole processing stage is achieved, allowing multiple lock blanks to undergo pin hole processing simultaneously. This significantly improves the overall production efficiency and capacity of the entire automatic lock punching machine, ensuring that it matches the efficiency of multi-station parallel processing at the front end and preventing subsequent stages from becoming production bottlenecks.

[0171] The following example will provide a more detailed explanation of the above technical solution:

[0172] A lock manufacturing plant needs to automate the drilling of a large number of lock blanks, including holes on the top, front, and rear sides, requiring high precision and efficiency. The plant faces challenges including the bulky structure of its existing equipment, insufficient clamping force in the fixtures to handle simultaneous drilling in multiple directions, and a loose overall layout leading to low processing efficiency.

[0173] The factory introduced an automatic lock punching machine with multi-station parallel processing. The main structure of the punching machine includes a frame 1, on which a feeding module, a reciprocating feeding mechanism 3, multiple punching stations 5, a flipping and transfer module 7, and a discharge module are arranged compactly along the feeding direction. This compact modular layout effectively reduces the overall footprint of the equipment and solves the problem of the large structure of existing equipment.

[0174] During operation, the lock blanks are first conveyed sequentially to the reciprocating feeding mechanism 3 via the feeding module. The feeding module includes an inclined track 21 and a receiving seat 22. A feeding push rod 23 is provided on one side of the receiving seat 22 to push the lock blank to the first lock blank clamp 4. At the same time, the positioning rod 24 provided on the frame 1 extends into the first lock blank clamp 4 during the lock blank pushing and feeding process to position the rear end of the lock blank and ensure the accuracy of the initial clamping.

[0175] The reciprocating feeding mechanism 3 includes a support base 31 that reciprocates along the feeding direction, on which multiple blank clamping fixtures 4 are mounted. The support base 31 drives these blank clamping fixtures 4 to move synchronously, so that each blank clamping fixture 4 passes through each drilling station 5 and the flipping and transfer module 7 in sequence, thereby realizing multi-station parallel processing. To ensure the positioning stability between the blank clamping fixtures 4 and the support base 31 under the action of lateral drilling force, positioning grooves 311 extending along the feeding direction are respectively provided on the upper end face of the support base 31 and the lower end face of the blank clamping fixtures 4. These positioning grooves 311 are connected by positioning keys 32 to effectively resist the relative displacement caused by the lateral drilling force.

[0176] Each locking blank holder 4 is a key component of the drilling machine. It includes a base 41, with a recessed receiving groove 411 formed in the center of the upper end face of the base 41, and a first sidewall 412 and a second sidewall 413 provided on both sides of the receiving groove 411. A movable clamping seat 42 is movably disposed within the receiving groove 411. The inner wall of the second sidewall 413 has a fixed clamping part 43, while the inner wall of the movable clamping seat 42 has a movable clamping part 44. The fixed clamping part 43 and the movable clamping part 44 are arranged opposite to each other for clamping the locking blank from the left and right directions. In order to provide the huge clamping force required for drilling in multiple directions simultaneously, the locking blank holder 4 also integrates a torque amplification mechanism. This torque amplification mechanism is connected between the output end of the driver 45 mounted on the base 41 and the movable clamping seat 42.

[0177] Taking a linkage-type torque amplification mechanism as an example, it includes a first linkage 4611 and a second linkage 4612 that are hinged to each other. The other end of the first linkage 4611 is hinged to a hinge seat recess 4121 provided in the first side wall 412, and the other end of the second linkage 4612 is hinged to a movable clamping seat 42. The output end of the driver 45 (e.g., a cylinder) is connected to the hinge point of the first linkage 4611 and the second linkage 4612 through a transmission member 48. When the driver 45 drives the hinge point of the first linkage 4611 and the second linkage 4612 to rise and fall through the transmission member 48, the included angle between the first linkage 4611 and the second linkage 4612 will change. At the end of the clamping stroke, when the first link 4611 and the second link 4612 approach 180°, the torque amplification mechanism transmits the force output by the driver 45 to the movable clamping seat 42 in a torque amplified manner, driving the moving clamping part 44 and the fixed clamping part 43 to move closer to each other, thereby generating a magnified clamping force far exceeding that of traditional clamps. This amplified clamping force can firmly clamp the lock blank, keeping it stable when drilling in multiple directions simultaneously, effectively solving the problem of insufficient clamping force of traditional clamps. In addition, the bottom surface of the receiving groove 411 of the base 41 is provided with a groove 414 located between the fixed clamping part 43 and the moving clamping part 44, and a support shaft 47 is horizontally arranged in the groove 414, forming a line contact support with the bottom of the lock blank, further enhancing the positioning stability of the lock blank.

[0178] After the lock blank is securely clamped, the reciprocating feeding mechanism 3 delivers it to the first drilling station 5. Each drilling station 5 is equipped with a multi-directional drilling device, which includes a top drilling mechanism 61, a rear drilling mechanism 62, and a front drilling mechanism 63. These mechanisms can simultaneously drill holes on the top, rear, and front surfaces of the lock blank. Because the lock blank clamping fixture 4 provides sufficient clamping force, the lock blank can maintain precise positioning even when subjected to drilling forces in multiple directions simultaneously, avoiding the contradiction between the drilling direction and the support direction in traditional methods. The top drilling mechanism 61, the rear drilling mechanism 62, and the front drilling mechanism 63 each include a drive motor 64 and a drill bit assembly 65, which are mounted on an adjusting seat. An adjusting structure, such as a strip hole and fasteners, is provided between the adjusting seat and the frame 1 to achieve three-dimensional position adjustment in the machine adjustment state, ensuring drilling accuracy.

[0179] After drilling at one station is completed, the flipping and transfer module 7 intervenes. The flipping and transfer module 7 is located at each drilling station 5 and is used to transfer the lock blank processed at the previous station to the next station, and can selectively flip the lock blank. The flipping and transfer module 7 includes a flipping seat 71 and a flipping driver 72 that drives the flipping seat 71 to rotate. The flipping seat 71 has a receiving cavity 711 adapted to the shape of the lock blank, and has an opening 712 for the lock blank to enter and exit. A first transfer component 73 pushes the lock blank from the lock blank holder 4 to the receiving cavity 711, then the flipping seat 71 flips as needed, and a second transfer component 74 pushes the lock blank from the receiving cavity 711 to the next lock blank holder 4. This design allows the lock blank to be efficiently and accurately transferred and positioned between different stations, further improving automation and processing efficiency.

[0180] Through this multi-station parallel processing mode, while the first lock blank is being drilled at the first drilling station 5, the second lock blank may be being loaded, the third lock blank may be being drilled at the second drilling station 5, and so on. This assembly line operation method, combining the high clamping force of the lock blank fixture 4 with the ability to drill in multiple directions simultaneously, greatly shortens the processing cycle, significantly improves production efficiency, and solves the problem of low processing efficiency of traditional equipment.

[0181] Finally, all the drilled lock blanks are conveyed to the discharge module at the end of the frame 1, where they are discharged. If pin hole processing is required, a conveyor track can be provided between the discharge module and the pin hole processing device 10 to transport the drilled lock blanks to the pin hole processing device 10. The conveyor track may include a first conveyor section 91 and a second conveyor section 92 arranged in parallel. The end of the first conveyor section 91 is located above the beginning of the second conveyor section 92, and a flipping guide 93 is provided between them to control the flipping of the lock blanks so that the pin hole processing device 10 can process the lock blanks from different directions. The pin hole processing device 10 has a degree of freedom of movement and is used to sequentially process multiple pin holes on the lock blanks.

[0182] Compared to existing technologies that use multiple workpiece conveyor belts connected sequentially with varying heights, this drilling machine employs a reciprocating feeding mechanism 3 to drive multiple lock blank clamps 4 to move synchronously. These functional modules are compactly arranged on the same horizontal plane, avoiding complex conveyor belt structures and height differences, thus significantly reducing equipment length and floor space, lowering manufacturing costs and structural complexity. Simultaneously, the powerful clamping force provided by the torque amplification mechanism ensures the lock blank remains stable during simultaneous drilling in multiple directions, a feat impossible with traditional clamps, thus solving the technical challenge of insufficient clamping force during simultaneous multi-directional drilling. The various technical features of this integrated solution work together to form a highly efficient, compact, and high-precision automatic lock drilling system.

[0183] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An automatic lock punching machine with multi-station parallel processing, characterized in that, include: Rack (1); The feeding module is set on the frame (1) and is used to sequentially feed the locking blanks; A reciprocating feeding mechanism (3) is provided on the frame (1) and includes a bearing seat (31) that reciprocates along the feeding direction and a plurality of blank clamps (4) provided on the bearing seat (31); Multiple drilling stations (5) are arranged sequentially on the frame (1) along the feeding direction. Each drilling station (5) is equipped with a multi-directional drilling device. The multi-directional drilling device includes a top drilling mechanism (61), a rear drilling mechanism (62), and a front drilling mechanism (63), which are used to drill holes on the top, rear, and front sides of the lock blank simultaneously. The flipping and transfer module (7) is set at each punching station (5) to transfer the lock blank processed at the previous station to the next station, and can selectively flip the lock blank. And a discharge module, located at the end of the frame (1), for discharging the processed lock blank; The locking fixture (4) includes: The base (41) has a recessed groove (411) in the middle of its upper end face, and the base (41) has a first sidewall (412) and a second sidewall (413) on both sides of the groove (411). The movable clamping seat (42) is movably disposed within the receiving groove (411); The inner wall of the second sidewall (413) has a fixed clamping part (43), and the inner wall of the movable clamping seat (42) has a movable clamping part (44). The fixed clamping part (43) and the movable clamping part (44) are arranged opposite to each other to clamp and lock the blank from the left and right directions. A driver (45) is mounted on the base (41); A torque amplification mechanism is connected between the output end of the driver (45) and the movable clamping seat (42) to transmit the force output by the driver (45) to the movable clamping seat (42) in a torque amplification manner, so as to drive the movable clamping part (44) and the fixed clamping part (43) to move closer or further apart, thereby generating an amplified clamping force at the end of the clamping stroke; The feeding module, reciprocating feeding mechanism (3), multiple punching stations (5), flipping and transfer module (7) and discharge module are arranged in a compact sequence along the feeding direction. The bearing seat (31) drives multiple blank clamps (4) to move synchronously, so that each blank clamp (4) passes through each punching station (5) and each flipping and transfer module (7) in sequence, realizing parallel processing of multiple stations.

2. The automatic lock punching machine with multi-station parallel processing according to claim 1, characterized in that, The locking blank clamp (4) also includes a support shaft (47). The bottom surface of the receiving groove (411) of the base (41) is provided with a groove (414) located between the fixed clamping part (43) and the movable clamping part (44). The support shaft (47) is horizontally arranged in the groove (414) to form a line contact support with the bottom of the locking blank.

3. The automatic lock punching machine with multi-station parallel processing according to claim 1, characterized in that, The torque amplification mechanism is a linkage-type torque amplification mechanism, which includes a first linkage (4611) and a second linkage (4612) that are hinged to each other. The other end of the first linkage (4611) is hinged to a hinge seat recess (4121) provided in the first side wall (412), and the other end of the second linkage (4612) is hinged to the movable clamping seat (42). The output end of the driver (45) is connected to the hinge axis of the first linkage (4611) and the second linkage (4612) through a transmission member (48).

4. The automatic lock punching machine with multi-station parallel processing according to claim 3, characterized in that, The driver (45) is a cylinder, and a mounting cavity for accommodating the cylinder is provided below the receiving groove (411); or a through hole (416) for the output shaft of the cylinder to pass through is provided below the receiving groove (411), and the cylinder is located at the bottom of the base (41).

5. The automatic lock punching machine with multi-station parallel processing according to claim 1, characterized in that, The torque amplification mechanism is a cam-type torque amplification mechanism, which includes a swing cam (4621). The first sidewall (412) includes a left wall portion (4122) and a right wall portion (4123). A hinge seat recess (4121) is formed between the left wall portion (4122) and the right wall portion (4123). The swing cam (4621) is hinged to the hinge seat recess (4121) by a pin (4622). The cam surface (4623) of the swing cam (4621) abuts against the movable clamping seat (42) and is used to squeeze the movable clamping seat (42) under the drive of the driver (45).

6. The automatic lock punching machine with multi-station parallel processing according to claim 5, characterized in that, The swing cam (4621) includes a base (4624), on which a first connecting portion (4625) for hinged to the first sidewall (412), a second connecting portion (4626) for connecting to the output end of the driver (45), and a cam working surface (4623) for abutting against the movable clamping seat (42) are provided; the cam working surface (4623) is configured such that from the position where the swing cam (4621) begins to contact the movable clamping seat (42) to the clamping end position, the distance from the axis of the first connecting portion (4625) on the cam working surface (4623) gradually increases.

7. The automatic lock drilling machine for multi-station parallel processing according to claim 5, characterized in that, The movable clamping seat (42) is movably disposed through a guide shaft (410) passing through a guide hole in the first side wall (412). The front end of the guide shaft (410) is fixedly connected to both sides of the movable clamping seat (42). An elastic reset member (420) for resetting the movable clamping seat (42) is sleeved on the guide shaft (410).

8. The automatic lock drilling machine for multi-station parallel processing according to claim 5, characterized in that, An adjusting screw (430) is provided between the swing cam (4621) and the movable clamping seat (42). The movable clamping seat (42) has a through hole (421). The adjusting screw (430) is located in the through hole (421) and its rear end extends out of the through hole (421) to abut against the swing cam (4621). The front end of the adjusting screw (430) does not extend beyond the clamping surface of the movable clamping seat (42). It is used to adjust the relative position between the movable clamping seat (42) and the swing cam (4621) by rotation, so as to achieve fine adjustment of the position or clamping force of the lock blank.

9. The automatic lock punching machine for multi-station parallel processing according to claim 1, characterized in that, The fixed clamping part (43) is directly formed by the inner wall of the second side wall (413), and the movable clamping part (44) is directly formed by the inner wall of the movable clamping seat (42); or, the fixed clamping part (43) and the movable clamping part (44) are clamping components independent of the second side wall (413) and the movable clamping seat (42), respectively, with the fixed clamping part (43) fixed on the inner wall of the second side wall (413) and the movable clamping part (44) fixed on the inner wall of the movable clamping seat (42).

10. The automatic lock punching machine for multi-station parallel processing according to claim 1, characterized in that, The upper end face of the bearing seat (31) and the lower end face of the locking blank clamp (4) are respectively provided with positioning grooves (311) extending along the feeding direction. The positioning grooves (311) are connected by positioning keys (32) to realize the positioning between the bearing seat (31) and the locking blank clamp (4) and resist the relative displacement generated by the lateral drilling force.

11. The automatic lock punching machine for multi-station parallel processing according to claim 1, characterized in that, The flipping and transfer module (7) includes a flipping seat (71) and a flipping driver (72) for driving the flipping seat (71) to rotate. The flipping seat (71) has a receiving cavity (711) adapted to the shape of the lock blank. The flipping seat (71) has an opening (712) for the lock blank to enter and exit. The flipping and transfer module (7) also includes a first material transfer component (73) and a second material transfer component (74). The first material transfer component (73) is used to push the lock blank from the lock blank holder (4) to the receiving cavity (711). The second material transfer component (74) is used to push the lock blank from the receiving cavity (711) to the next lock blank holder (4).

12. The automatic lock punching machine for multi-station parallel processing according to claim 1, characterized in that, It also includes a conveying track and a pinhole processing device (10). The conveying track is located between the discharge module and the pinhole processing device (10) and is used to convey the completed lock blank to the pinhole processing device (10). The pinhole processing device (10) has a degree of freedom of movement and is used to process multiple pinholes on the lock blank in sequence. The conveying track includes a first conveying section (91) and a second conveying section (92) arranged in parallel. The end of the first conveying section (91) is located above the beginning of the second conveying section (92). A flipping guide (93) is provided between the first conveying section (91) and the second conveying section (92) to control the flipping of the lock blank. There are multiple pinhole processing devices (10). Multiple pinhole processing devices (10) are arranged in series along the conveying direction of the conveying track, or there are multiple conveying tracks. Multiple conveying tracks are arranged in parallel and each conveying track is correspondingly provided with a pinhole processing device (10).

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