Automated processing equipment for terminal blocks, its control method, and terminal blocks prepared thereby

Abstract

The present invention discloses an automated processing device for a wiring terminal, its control method, and the wiring terminal prepared thereby, aiming to solve the problems of low efficiency in processing wiring terminals and low corporate profits in the prior art. The main points of its technical solution are as follows: It includes a machine table, on which a feeding component, a rough punching component, a chamfering component, a wire drilling component, and a blanking component are sequentially arranged in a circular array. A rotating disk is rotatably connected to the center of the machine table, and a plurality of placement fixtures corresponding to the feeding component, the rough punching component, the chamfering component, the wire drilling component, and the blanking component are provided on the rotating disk. The rotating disk intermittently rotates through a central control module to drive the placement fixtures to sequentially pass through the rough punching component, the chamfering component, the wire drilling component, and the blanking component. The present invention realizes automated assembly line processing, without manual operation throughout the process, and is equipped with multiple sensors and mechanical limits, effectively ensuring the finished product quality of the wiring terminal, reducing production costs for enterprises, and improving production capacity.

Description

Technical Field

[0001] The present invention relates to processing equipment for terminal blocks. More specifically, it relates to an automated processing equipment for terminal blocks, its control method, and the terminal blocks prepared thereby. Background Art

[0002] A terminal block is a fitting product used to achieve electrical connection. It is applied to facilitate the connection of wires. In fact, it is a metal sheet enclosed in insulating plastic, with holes at both ends for inserting wires and screws for fastening or loosening. For example, when two wires sometimes need to be connected and sometimes need to be disconnected, the terminal block can be used to connect them and can be disconnected at any time without having to weld or wind them together, which is very convenient and fast.

[0003] A terminal block disclosed in a Chinese patent with the publication number CN202454760U has the following technical key points: a wiring frame, a pressure block, a conductive metal sheet, and a threaded fastener. Among them, the pressure block is provided with holes, the pressure block is located inside the wiring frame, and the wiring frame is provided with threaded holes. Among them, the conductive metal sheet is connected to the wiring frame. Among them, the threaded fastener can be threadedly connected to the threaded hole on the wiring frame, so that the threaded fastener passes through the holes on the pressure block, enabling the pressure block to press the external wire tightly against the conductive metal sheet, which can ensure good contact between the external wire and the conductive metal sheet in a switch or socket, can press tightly without damaging the external wire.

[0004] The role of the conductive metal sheet in the terminal block is crucial. Currently, there are the following technical difficulties in the preparation method of the terminal block in the industry:

[0005] The preparation efficiency is low, and the unit price of the product is low, resulting in a low production profit margin;

[0006] The specification of the terminal block is small, and a threaded connection method is used in combination with screws to fix the wire. However, it is difficult to accurately control the effective number of thread teeth of the threaded hole during the processing of the threaded hole;

[0007] For the center distance accuracy of the threaded hole located in the terminal block, there is an eccentric situation when relying on manual tapping. Summary of the Invention

[0008] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an automated processing equipment for terminal blocks, its control method, and the terminal blocks prepared thereby.

[0009] The above technical object of the present invention is achieved by the following technical solutions: An automatic processing device for a terminal block, including a machine table, on which a feeding component, a rough punching component, a chamfering component, a wire drilling component, and a blanking component are sequentially arranged in a circular array. A rotating disk is rotatably connected to the center of the machine table, and a number of placement fixtures corresponding to the feeding component, the rough punching component, the chamfering component, the wire drilling component, and the blanking component are arranged on the rotating disk. The rotating disk intermittently rotates through a central control module to drive the placement fixtures to sequentially pass through the rough punching component, the chamfering component, the wire drilling component, and the blanking component;

[0010] A number of positioning and calibration modules are also arranged on the machine table at the rough punching component, the chamfering component, the wire drilling component, and the blanking component. The positioning and calibration modules are arranged towards the placement fixture direction and are used to obtain the workpiece condition of the placement fixture and feedback it to the central control module;

[0011] Mechanical limit mechanisms and stroke detection mechanisms are arranged on the rough punching component, the chamfering component, and the wire drilling component. The mechanical limit mechanisms and the stroke detection mechanisms are used to obtain and limit the action stroke of the rough punching component, the chamfering component, or the wire drilling component.

[0012] The present invention is further arranged as follows: The rough punching component, the chamfering component, and the wire drilling component all include electric punching machines fixedly connected to the machine table. The action segments of the mechanical limit mechanisms and the stroke detection mechanisms are respectively connected to the drive shafts of the electric punching machines and move synchronously in response to the actions of the electric punching machines.

[0013] The present invention is further arranged as follows: The action segment of the mechanical limit mechanism includes a limit screw and a damping rod. The limit screw and the damping rod are both connected to the drive shaft through a connecting piece. The limit screw and the damping rod are adjustably connected to the connecting piece and are used to adjust the limit of the action stroke of the drive shaft by the mechanical limit mechanism.

[0014] The present invention is further arranged as follows: The action segment of the stroke detection mechanism includes an adjustment screw and a number of feedback blocks threadedly connected to the adjustment screw. The stroke detection mechanism also includes a stroke Hall sensor. A number of the stroke Hall sensors are arranged on the outer shell of the electric punching machine and are connected to the central control module, and are used to respectively detect the position displacement of the feedback blocks on the adjustment screw, and control the start or stop of the drive shaft of the electric punching machine in response to the position displacements of the feedback blocks detected by the number of stroke Hall sensors respectively.

[0015] The present invention is further arranged as follows: The positioning and calibration module includes a support plate and a Hall distance measuring sensor fixedly connected to the support plate. The Hall distance measuring sensor is arranged towards the placement fixture and is used to obtain the distance between the terminal block on the placement fixture and the Hall distance measuring sensor.

[0016] The present invention is further configured that: the feeding component includes a feeding mechanism and a cutting component, the feeding mechanism includes two groups of clamping members and a placing rack, the two clamping members are respectively fixedly and slidably connected to the placing rack, a reciprocating cylinder is arranged on the placing rack, the telescopic end of the reciprocating cylinder is connected to the slidable clamping member, and the adjacent clamping members jointly and intermittently clamp the linear material.

[0017] The present invention is further configured that: both the placing tooling and the clamping member include a fixed part and a movable part, a clamping cavity having the same cross-section as the material is formed between the fixed part and the movable part, and the movable part is reciprocally driven by a cylinder to clamp the material;

[0018] The cutting component includes a displacement base and a cutting mechanism arranged on the displacement base, the displacement base is connected to a radial cylinder connected to the central control module, and each time the rotary turntable rotates, the radial cylinder drives the cutting mechanism to cut the material vertically along the tangential route of the rotary turntable.

[0019] The present invention is further configured that: a wire drill is assembled at the output end of the electric drilling machine of the wire drilling component, and the wire drill is only provided with a tapered tooth less than one tooth;

[0020] The blanking component includes a vertical frame, a vertical cylinder is fixedly connected to the vertical frame, a horizontal radial cylinder is fixedly connected to the output end of the vertical cylinder, and a ejector pin for separating the processed terminal from the placing tooling is fixedly connected to the output end of the horizontal radial cylinder.

[0021] A control method for an automatic processing device of a terminal, using the automatic processing device of the terminal, the steps include:

[0022] S1. Place the long and linear material between the fixed part and the movable part of the clamping member, align the material with the cross-section of the placing tooling, and adjust the stroke of the reciprocating drive of the cylinder according to the length of the finished terminal;

[0023] S2. The clamping members clamp the material in sequence, and under the action of the cylinder, send the material to the placing tooling on the rotary turntable, and the displacement base drives the cutting mechanism towards the material between the placing tooling and the clamping member, the cutting mechanism displaces along the tangential direction of the rotary turntable, and cuts along the edge of the placing tooling;

[0024] S3. After the cutting is completed, the cutting mechanism resets. The transfer turntable rotates intermittently under the drive of the motor, and transfers the placement tooling clamping the workpiece to the rough drilling assembly. The Hall distance sensor at the rough drilling assembly detects the transfer of the material on the placement tooling to output a material detection signal to the central control module. After monitoring that the material to be drilled is displaced to the specified position, the central control module controls the transfer turntable to stop rotating, and drives the electric drilling machine of the rough drilling assembly. When the mechanical limit mechanism and the stroke detection mechanism monitor that the drive shaft of the electric drilling machine longitudinally displaces to the set limit position, the rough drilling assembly is reset. The Hall distance sensor synchronously monitors the operation of the rough drilling assembly. While the rough drilling operation is being carried out, steps S1 and S2 are operated synchronously;

[0025] S4. After completing the drilling operation of the rough drilling assembly, the central control module controls the transfer turntable to rotate, so that the placement tooling carrying the workpiece passing through the corresponding station of the rough drilling assembly is displaced to the corresponding station of the chamfering assembly. The Hall distance sensor at the chamfering assembly, after detecting that the workpiece is displaced to the specified position, starts the electric drilling machine of the chamfering assembly to chamfer at the blind hole position obtained after rough drilling. The mechanical limit mechanism and the stroke detection mechanism monitor. When operating in step S4, steps S1 - S3 are operated synchronously;

[0026] S5. When the workpiece after completing step S4 enters the station of the wire drilling assembly on the transfer turntable, the Hall distance sensor monitors the displacement change of the placement tooling and the workpiece. The electric drilling machine at the wire drilling assembly operates to tap the chamfered workpiece, and taps the blind hole with a wire drill having only a tapered thread of less than one tooth. When operating in step S5, steps S1 - S4 are operated synchronously;

[0027] S6. After completing step S5, the transfer turntable displaces the processed workpiece to the blanking assembly. The vertical cylinder and the horizontal radial cylinder act synchronously, and the movable part of the placement tooling moves away from the fixed part, releasing the clamping of the workpiece. The vertical cylinder drives the horizontal radial cylinder to approach the placement tooling. At the same time, when the output end of the horizontal radial cylinder extends and is lowered between the fixed part and the movable part of the placement tooling under the action of the vertical cylinder, the horizontal radial cylinder contracts, and the workpiece is pushed through the ejector pin coaxial with the workpiece to complete blanking. When operating in step S6, steps S1 - S5 are carried out synchronously.

[0028] The present invention is further provided as: a terminal, a metal terminal prepared by using an automated processing device such as a terminal. The maximum thickness of the metal terminal is 4 - 5 mm. A threaded blind hole is provided on the metal terminal. The ratio of the hole depth of the threaded blind hole to the thickness of the metal terminal is: 39:43. The threaded blind hole has at least 6 effective threads.

[0029] In summary, the present invention has the following beneficial effects:

[0030] Through the improvement of the automated processing equipment, this application realizes the continuous processing of terminal blocks from wire cutting, drilling, chamfering to tapping, with high production efficiency, which can effectively improve the production capacity of terminal blocks. Thus, even when the unit price of terminal blocks is low, there can still be a profit margin.

[0031] Secondly, through the set mechanical limit mechanism and stroke detection mechanism, when the electric drilling machine performs operations such as drilling, chamfering, and tapping respectively, it can accurately control the depth and degree of processing, and further accurately ensure the ratio of the depth of the screw hole to the overall thickness of the terminal block, realizing the processing of threaded holes without penetrating the terminal block. This not only ensures the connection of the threaded hole with the screw, but also avoids the impact on the strength of the overall structure of the terminal block after penetration.

[0032] And the set Hall sensor, such as a Hall ranging sensor, can detect and judge the metal terminals on the placement fixture when the transfer turntable drives the placement fixture to rotate, and then accurately process the metal terminals, improving the processing accuracy of the threaded holes;

[0033] This equipment adopts an automated control processing method. After the wire material is loaded, it undergoes automated drilling, chamfering, tapping, and unloading, realizing automated assembly line processing. The entire process requires no manual operation, and is equipped with multiple sensors and mechanical limits, effectively ensuring the finished product quality of the terminal block, reducing production costs for enterprises, and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0035] Figure 1 is a schematic structural diagram of the present invention;

[0036] Figure 2 is Figure 1 an enlarged schematic diagram of part C in;

[0037] Figure 3 is Figure 1 an enlarged schematic diagram of part B in;

[0038] Figure 4 is Figure 1 an enlarged schematic diagram of part A in;

[0039] Figure 5 is a perspective view of the present invention;

[0040] Figure 6For Figure 5 An enlarged schematic view of part D in

[0041] Figure 7 For Figure 5 An enlarged schematic view of part E in

[0042] On the figure: 1. Machine platform; 2. Loading component; 21. Feeding mechanism; 211. Clamping part; 212. Placing rack; 213. Reciprocating cylinder; 22. Cutting component; 221. Displacement base; 222. Cutting mechanism; 3. Rough punching component; 4. Chamfering component; 5. Drilling and wire feeding component; 6. Unloading component; 61. Vertical frame; 62. Vertical cylinder; 63. Horizontal radial cylinder; 64. Top column; 7. Rotating disk; 8. Placing tooling; 81. Fixed part; 82. Movable part; 9. Positioning and calibration module; 91. Support plate; 92. Hall ranging sensor; 10. Mechanical limit mechanism; 101. Limit screw; 102. Damping rod; 103. Connecting piece; 11. Stroke detection mechanism; 110. Adjusting screw; 111. Feedback block; 112. Stroke Hall sensor. Specific embodiments

[0043] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0044] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0046] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0047] In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0048] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Embodiment 1: As Figure 1 shown, an automated processing device for a wiring terminal is used to prepare a wiring terminal with a length and width of 10 mm and 8 mm respectively, a thickness of 4 - 5 mm, and a tolerance of ±0.1 mm. The wiring terminal is made of CuZn40 material, and a threaded blind hole is provided at the symmetric center of the wiring terminal. The specification of the threaded blind hole is M3*0.5, that is, the major diameter of the thread is 3 mm, the pitch is 0.5 mm, and the ratio of the depth of the threaded blind hole to the thickness of the metal terminal is 39:43. The distances from the threaded blind hole to the edges of its top surface are 4 mm and 5 mm respectively, with a tolerance of ±0.05 mm. A chamfer is provided at the opening of the threaded blind hole, and the specification of the chamfer is C0.2±0.1 mm. There are at least 6 effective threads in the threaded blind hole.

[0050] An automated processing device for a wiring terminal, including a machine table 1. On the machine table 1, there are successively arranged a feeding component 2, a rough punching component 3, a chamfering component 4, a drilling and threading component 5, and a discharging component 6 in a circular array. A rotating disk 7 is rotatably connected to the center of the machine table 1. On the rotating disk 7, there are several placement jigs 8 respectively corresponding to the feeding component 2, the rough punching component 3, the chamfering component 4, the drilling and threading component 5, and the discharging component 6. The rotating disk 7 intermittently rotates through a central control module to drive the placement jig 8 to successively pass through the rough punching component 3, the chamfering component 4, the drilling and threading component 5, and the discharging component 6. Specifically, in this embodiment, the rough punching component 3, the chamfering component 4, the drilling and threading component 5, and the discharging component 6 are respectively arranged at equal intervals, and the distance between the equal intervals is the same as the interval distance between several placement jigs 8, so that when the rotating disk 7 rotates intermittently, the placement jig 8 and the workpiece thereon can be transferred between the rough punching component 3, the chamfering component 4, the drilling and threading component 5, and the discharging component 6, and the processing progress of the workpiece can be ensured to meet the requirements that the distances from the threaded blind holes to the top edge are 4 mm and 5 mm respectively, with a tolerance of ±0.05 mm.

[0051] There are also several positioning and calibration modules 9 on the machine table 1 located at the rough punching component 3, the chamfering component 4, the drilling and threading component 5, and the discharging component 6. The positioning and calibration module 9 is arranged towards the placement jig 8 direction, used to obtain the workpiece condition of the placement jig 8 and feedback it to the central control module, and through the central control module for centralized coordination and control. In cooperation with the positioning and calibration module 9, when clamping the workpiece to be processed at the fixed part 81 and the movable part 82 of the placement jig 8, on the basis of reducing the movement of the workpiece, further through the setting of the positioning and calibration module 9, on the one hand, it can detect the displacement and movement state of the placement jig 8 and the workpiece. For example, when detecting the placement jig 8 or the workpiece, the positioning and calibration module 9 can continuously output a high-level or low-level signal. After the placement jig 8 rotates with the rotating disk 7, when the placement jig 8 is not detected, the output signal flips from high level or low level, outputting low level or high level, forming a falling edge or a rising edge. The central control module can judge through the digital pulse signal with the positioning and calibration module 9 to detect the rotation state of the rotating disk 7 and the processing state of the workpiece. And in this embodiment, the positioning and calibration module 9 includes a support plate 91 and a Hall distance sensor 92 fixedly connected to the support plate 91. The Hall distance sensor 92 is arranged towards the placement jig 8, used to obtain the distance between the wiring terminal on the placement jig 8 and the Hall distance sensor 92. Through the setting of the Hall distance sensor 92, the distance between the workpiece and the positioning and calibration module 9 can be detected, so as to ensure that when the workpiece is transferred to the corresponding station with the placement jig 8, the distance between the workpiece and the corresponding electric punching machine is consistent, and further ensure that the distance from the threaded blind hole to its top edge meets the accuracy requirements. When the wiring terminal is applied to products such as automobiles and relays, it can have better consistency and facilitate the installation of screws;

[0052] The rough punching assembly 3, the chamfering assembly 4, and the drilling and threading assembly 5 are all provided with a mechanical limit mechanism 10 and a stroke detection mechanism 11. The mechanical limit mechanism 10 and the stroke detection mechanism 11 are used to obtain and limit the movement stroke of the rough punching assembly 3, the chamfering assembly 4, or the drilling and threading assembly 5. In this embodiment, the mechanical limit mechanism 10 can directly limit the movement stroke of the corresponding assembly in a mechanical limiting manner, which has good timeliness and reliability. The stroke detection mechanism 11 feeds back the stroke status to the central control module in the form of electronic data information, so as to achieve cooperation with components such as the transfer turntable 7 and the cylinder.

[0053] Specifically, the action section of the mechanical limit mechanism 10 includes a limit screw 101 and a damping rod 102. The limit screw 101 and the damping rod 102 are both connected to the drive shaft through a connecting piece 103. The limit screw 101 and the damping rod 102 are adjustably connected to the connecting piece 103 for adjusting the limit of the drive shaft stroke by the mechanical limit mechanism 10. The action section of the stroke detection mechanism 11 includes an adjusting screw 110 and a number of feedback blocks 111 threadedly connected to the adjusting screw 110. The stroke detection mechanism 11 also includes a stroke Hall sensor 112. A number of stroke Hall sensors 112 are arranged on the outer shell of the electric punching machine and connected to the central control module, and are used to respectively detect the position displacement of the feedback blocks 111 on the adjusting screw 110. In response to the position movement of the feedback blocks 111 detected by the number of stroke Hall sensors 112 respectively, the drive shaft of the electric punching machine is controlled to stop or start. And the feedback blocks 111 can be finely adjusted on the adjusting screw 110, and the length of the vertical stroke of the electric punching machine can be controlled, so as to adjust the hole depth of the drilled hole, so as to meet the precision requirement that the metal terminal is not penetrated, and the ratio of the hole depth of the retained threaded blind hole to the thickness of the metal terminal is 39:43. And in this embodiment, in the tapping step, a tap drill with only less than one tooth of taper teeth is selected, and the tap drill is assembled at the output end of the electric punching machine of the drilling and threading assembly 5.

[0054] Among them, the feeding assembly 2 includes a feeding mechanism 21 and a cutting mechanism 222. The feeding mechanism 21 includes two groups of clamping members 211 and a placing rack 212. The two clamping members 211 are respectively fixedly and slidably connected to the placing rack 212. A reciprocating cylinder 213 is arranged on the placing rack 212. The telescopic end of the reciprocating cylinder 213 is connected to the slidable clamping member 211. The adjacent clamping members 211 jointly and intermittently clamp the linear material. In this embodiment, the clamping member 211 adopts the same structure as the placing tooling 8, a fixed block is set as the fixed part 81, and a block-shaped movable part 82 is arranged at the telescopic end of the cylinder. And the mutually facing sides of the fixed part 81 and the movable part 82 form a clamping cavity consistent with the cross section of the metal terminal after closing the mold, so as to realize the firm clamping of the metal terminal, thereby improving the stability in the processing process and ensuring the precision requirements.

[0055] The cutting assembly 22 includes a displacement base 221 and a cutting mechanism 222 disposed on the displacement base 221. The displacement base 221 is connected to a radial cylinder that is connected to the central control module. Each time the rotation turntable 7 rotates, the radial cylinder drives the cutting mechanism 222 to perform a vertical cutting of the material along a line tangent to the rotation turntable 7. In cooperation with the reciprocating motion of the reciprocating cylinder 213, when the clamping member 211 sequentially clamps the linear material, the material can be sent to the placement tooling 8. The telescopic stroke of the reciprocating cylinder 213 directly controls the length specification of the metal terminal. Through the intermittently displaced cutting assembly 22, the linear material can be cut, and along a line tangent to the rotation turntable 7 and perpendicular to the material, which can ensure the flatness and parallelism of the end face of the metal terminal.

[0056] The blanking assembly 6 includes a vertical frame 61. A vertical cylinder 62 is fixedly connected to the vertical frame 61. The output end of the vertical cylinder 62 is fixedly connected to a horizontal radial cylinder 63. The output end of the horizontal radial cylinder 63 is fixedly connected to a ejector pin 64 for separating the processed terminal block from the placement tooling 8. When the placement tooling 8 is transferred from the station where the wire drilling assembly 5 is located and the next placement tooling 8 is displaced to the position of the wire drilling assembly 5, the central control module is fed back by the Hall distance sensor 92 to control the blanking assembly 6. The vertical cylinder 62 is driven to vertically displace the horizontal radial cylinder 63, reducing the horizontal height of the horizontal radial cylinder 63 and approaching the placement tooling 8. While the horizontal radial cylinder 63 is descending, the output section of the horizontal radial cylinder 63 extends, driving the ejector pin 64 to extend first. When the horizontal radial cylinder 63 descends to a specified position (which can be the limit position, specifically depending on the signal of the cylinder and the size of the column), then the horizontal radial cylinder 63 contracts the ejector pin 64. During the contraction of the ejector pin 64, the cylinder connecting the movable part 82 on the placement tooling 8 is released and contracts, canceling the clamping of the metal terminal, and the ejector pin 64 ejects the metal terminal from the placement tooling 8 to complete the blanking operation.

[0057] Through the improvement of the automated processing equipment and the adoption of an automated control processing method, after the wire material is loaded, through automated drilling, chamfering, tapping, and blanking, continuous processing of the terminal block from wire cutting, drilling, chamfering, and tapping is achieved. The automated assembly line processing requires no manual operation throughout the process, and is equipped with multiple sensors and mechanical limits, effectively ensuring the finished product quality of the terminal block, reducing production costs for the enterprise, increasing production capacity, having a high production efficiency, being able to effectively increase the production capacity of the terminal block, and thus realizing a profit margin even when the unit price of the terminal block is low.

[0058] Secondly, through the mechanical limit mechanism 10 and the stroke detection mechanism 11 provided, when the electric punching machine performs operations such as drilling, chamfering, and tapping respectively, the depth and degree of processing can be accurately controlled, and then the ratio of the depth of the screw hole to the overall thickness of the terminal can be accurately guaranteed, realizing the processing of the threaded hole without penetrating the terminal. This not only ensures the connection of the screw to the threaded hole but also avoids the influence on the strength of the overall structure of the terminal after penetration.

[0059] Moreover, the provided Hall sensor, such as the Hall ranging sensor 92, can detect and judge the metal terminal on the placement tooling 8 when the rotating turntable 7 drives the placement tooling 8 to rotate, and then accurately process the metal terminal, improving the processing accuracy of the threaded hole to meet the high-precision rigid requirements of the terminal;

[0060] Embodiment 2, a control method for an automatic processing device of a terminal, using an automatic processing device for a terminal, the steps of which include:

[0061] S1. Place the long strip-shaped linear material between the fixed part 81 and the movable part 82 of the clamping member 211, make the material flush with the cross-section of the placement tooling 8, and adjust the stroke of the reciprocating drive of the cylinder according to the length of the finished terminal.

[0062] S2. The clamping member 211 clamps the material in sequence, and under the action of the cylinder, sends the material to the placement tooling 8 on the rotating turntable 7. And the displacement base 221 drives the cutting mechanism 222 towards the material between the placement tooling 8 and the clamping member 211. The cutting mechanism 222 displaces along the tangential direction of the rotating turntable 7 and cuts along the edge of the placement tooling 8.

[0063] S3. After the cutting is completed, the cutting mechanism 222 resets. The rotating turntable 7 rotates intermittently under the drive of the motor, and the placement tooling 8 clamping the workpiece is rotated to the rough punching assembly 3. The Hall ranging sensor 92 at the rough punching assembly 3 detects the rotation of the material on the placement tooling 8 to output a material detection signal to the central control module. After monitoring that the material to be drilled is displaced to the specified position, the central control module controls the rotating turntable 7 to stop rotating, and drives the electric punching machine of the rough punching assembly 3. When the mechanical limit mechanism 10 and the stroke detection mechanism 11 monitor that the drive shaft of the electric punching machine longitudinally displaces to the set limit position, the rough punching assembly 3 is reset. The Hall ranging sensor 92 synchronously monitors the operation of the rough punching assembly 3. While the rough punching operation is being performed, steps S1 and S2 are operated synchronously.

[0064] After the punching operation of the rough punching assembly 3 is completed, the central control module controls the rotation of the transfer turntable 7, so that the placement tooling 8 carrying the workpiece at the corresponding station of the rough punching assembly 3 is displaced to the corresponding station of the chamfering assembly 4. Through the Hall distance measuring sensor 92 located at the chamfering assembly 4, after the Hall distance measuring sensor 92 detects that the workpiece is displaced to the specified position, the electric drilling machine of the chamfering assembly 4 is started to chamfer at the blind hole position obtained after the rough drilling. The mechanical limit mechanism 10 and the stroke detection mechanism 11 monitor. When operating in step S4, steps S1-S3 are operated synchronously;

[0065] S5, when the workpiece after completing step S4 enters the station of the wire drilling assembly 5 on the transfer turntable 7, the Hall distance measuring sensor 92 monitors the displacement change of the placement tooling 8 and the workpiece. The electric punching machine located at the wire drilling assembly 5 acts to tap the chamfered workpiece, and a wire drill with only a tapered thread of less than one tooth is used to tap the blind hole. When operating in step S5, steps S1-S4 are operated synchronously;

[0066] S6, after completing step S5, the transfer turntable 7 displaces the processed workpiece to the blanking assembly 6. The vertical cylinder 62 and the horizontal radial cylinder 63 act synchronously, and the movable part 82 of the placement tooling 8 is displaced away from the fixed part 81, releasing the clamping of the workpiece. The vertical cylinder 62 drives the horizontal radial cylinder 63 to approach the placement tooling 8. At the same time, when the output end of the horizontal radial cylinder 63 extends and is lowered to between the fixed part 81 and the movable part 82 of the placement tooling 8 under the action of the vertical cylinder 62, the horizontal radial cylinder 63 contracts, and the workpiece is pushed to complete blanking through the ejector pin 64 coaxial with the workpiece. When operating in step S6, steps S1-S5 are operated synchronously.

[0067] For the quality control requirements of the processed metal terminals, a φ2.46mm pin gauge is used to measure the threaded blind hole. If there is obvious resistance and a greater force is required to insert, and it is difficult to take out after insertion, it is unqualified. Also, if there is obvious resistance or jamming during the process of selecting the go gauge direction of the thread plug gauge and a greater force is required to select it, it is also unqualified;

[0068] Qualified standard: If a φ2.6mm pin gauge cannot be inserted into the hole, it is qualified. If a φ2.46mm pin gauge can be inserted into the threaded hole, it is qualified. And specifically, when measuring the M3*0.5-6H internal thread, the thread plug gauge is used to measure according to the standard of "GB / T3934-2003 Technical Conditions for Plain Thread Gauges".

[0069] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automated processing device for a terminal block, characterized in that: For preparing a metal terminal with a threaded blind hole, the ratio of the hole depth of the threaded blind hole to the thickness of the metal terminal is 39:43, and the threaded blind hole has at least 6 effective threads; It includes a machine table (1), on which a feeding component (2), a rough punching component (3), a chamfering component (4), a drilling and threading component (5) and a discharging component (6) are sequentially arranged in a circular array. A rotating disk (7) is rotatably connected to the center of the machine table (1). A number of placing jigs (8) corresponding to the feeding component (2), the rough punching component (3), the chamfering component (4), the drilling and threading component (5) and the discharging component (6) are arranged on the rotating disk (7). The rotating disk (7) intermittently rotates through a central control module to drive the placing jig (8) to sequentially pass through the rough punching component (3), the chamfering component (4), the drilling and threading component (5) and the discharging component (6); A number of positioning and calibration modules (9) are also arranged on the machine table (1) at positions corresponding to the rough punching component (3), the chamfering component (4), the drilling and threading component (5) and the discharging component (6). The positioning and calibration module (9) is arranged towards the placing jig (8) direction and is used to obtain the workpiece condition of the placing jig (8) and feedback it to the central control module. The positioning and calibration module (9) includes a support plate (91) and a Hall distance measuring sensor (92) fixedly connected to the support plate (91). The Hall distance measuring sensor (92) is arranged towards the placing jig (8) and is used to obtain the distance between the wiring terminal on the placing jig (8) and the Hall distance measuring sensor (92); Mechanical limiting mechanisms (10) and stroke detection mechanisms (11) are arranged on the rough punching component (3), the chamfering component (4) and the drilling and threading component (5). The mechanical limiting mechanisms (10) and the stroke detection mechanisms (11) are used to obtain and limit the action stroke of the rough punching component (3), the chamfering component (4) or the drilling and threading component (5); The rough punching component (3), the chamfering component (4) and the drilling and threading component (5) each include an electric punching machine fixedly connected to the machine table (1). The action segments of the mechanical limiting mechanism (10) and the stroke detection mechanism (11) are respectively connected to the drive shaft of the electric punching machine and move synchronously in response to the action of the electric punching machine; The action segment of the mechanical limiting mechanism (10) includes a limiting screw rod (101) and a damping rod (102). The limiting screw rod (101) and the damping rod (102) are both connected to the drive shaft through a connecting piece (103). The limiting screw rod (101) and the damping rod (102) are adjustably connected to the connecting piece (103) for adjusting the limitation of the drive shaft stroke by the mechanical limiting mechanism (10); The action section of the stroke detection mechanism (11) includes an adjustment screw (110) and a number of feedback blocks (111) threadedly connected to the adjustment screw (110). The stroke detection mechanism (11) further includes a stroke Hall sensor (112). A number of the stroke Hall sensors (112) are arranged on the housing of the electric punching machine and connected to the central control module, and are used to respectively detect the position displacement of the feedback blocks (111) on the adjustment screw (110), and in response to the position movement of the feedback blocks (111) detected by the number of stroke Hall sensors (112) respectively, control the drive shaft of the electric punching machine to stop or start; A wire drill is assembled at the output end of the electric punching machine located in the drill wire assembly (5), and the wire drill is only provided with a tapered tooth less than one tooth; The blanking assembly (6) includes a vertical frame (61). A vertical cylinder (62) is fixedly connected to the vertical frame (61). The output end of the vertical cylinder (62) is fixedly connected to a horizontal radial cylinder (63). The output end of the horizontal radial cylinder (63) is fixedly connected to a top column (64) for separating the processed terminal block from the placement tooling (8).

2. The automated processing equipment for the wiring terminal according to claim 1, characterized in that: The feeding assembly (2) includes a feeding mechanism (21) and a cutting assembly (22). The feeding mechanism (21) includes two clamping members (211) and a placement rack (212). The two clamping members (211) are respectively fixedly and slidably connected to the placement rack (212). A reciprocating cylinder (213) is arranged on the placement rack (212). The telescopic end of the reciprocating cylinder (213) is connected to the slidable clamping member (211), and the adjacent clamping members (211) jointly clamp the linear material intermittently.

3. The automated processing equipment for the wiring terminal according to claim 2, characterized in that: Both the placement tooling (8) and the clamping member (211) include a fixed part (81) and a movable part (82). A clamping cavity having the same cross-section as the material is formed between the fixed part (81) and the movable part (82). The movable part (82) is reciprocally driven by a cylinder to clamp the material; The cutting assembly (22) includes a displacement base (221) and a cutting mechanism (222) arranged on the displacement base (221). The displacement base (221) is driven by a radial cylinder connected to the central control module. Each time the rotation turntable (7) rotates, the radial cylinder drives the cutting mechanism (222) to cut the material perpendicularly along a tangent line of the rotation turntable (7).

4. Control method for an automated processing device of a terminal block, using the automated processing device of a terminal block as described in claim 3, characterized in that: The steps include: S1. Place the long and linear material between the fixed part (81) and the movable part (82) of the clamping member (211), align the material with the cross-section of the placement tooling (8), and adjust the stroke of the reciprocating drive of the cylinder according to the length of the finished terminal block; S2. The clamping members (211) clamp the material in sequence, and under the action of the cylinder, send the material to the placement tooling (8) on the rotation turntable (7). And the displacement base (221) drives the cutting mechanism (222) towards the material located between the placement tooling (8) and the clamping member (211). The cutting mechanism (222) displaces along the tangent direction of the rotation turntable (7) and cuts along the edge of the placement tooling (8); S3. After the cutting is completed, the cutting mechanism (222) resets. The turntable (7) rotates intermittently under the drive of the motor, and the placement tooling (8) clamping the workpiece is transferred to the rough drilling assembly (3). The Hall ranging sensor (92) located at the rough drilling assembly (3) detects the transfer of the material on the placement tooling (8) to output a material detection signal to the central control module. After monitoring that the material to be drilled is displaced to the specified position, the central control module controls the turntable (7) to stop rotating and drives the electric drilling machine of the rough drilling assembly (3). When the mechanical limit mechanism (10) and the stroke detection mechanism (11) monitor that the driving shaft of the electric drilling machine longitudinally displaces to the set limit position, the rough drilling assembly (3) is reset. The Hall ranging sensor (92) synchronously monitors the operation of the rough drilling assembly (3). While the rough drilling operation is being carried out, steps S1 and S2 are operated synchronously; S4. After completing the drilling operation of the rough drilling assembly (3), the central control module controls the turntable (7) to rotate, so that the placement tooling (8) carrying the workpiece passing through the corresponding station of the rough drilling assembly (3) displaces the workpiece to the corresponding station of the chamfering assembly (4). Through the Hall ranging sensor (92) located at the chamfering assembly (4), after this Hall ranging sensor (92) detects that the workpiece is displaced to the specified position, the electric drilling machine of the chamfering assembly (4) is started to chamfer at the blind hole position obtained after rough drilling. The mechanical limit mechanism (10) and the stroke detection mechanism (11) monitor. When operating in step S4, steps S1 - S3 are operated synchronously; S5. When the workpiece after completing step S4 enters the station of the wire drilling assembly (5) on the turntable (7), the Hall ranging sensor (92) monitors the displacement change of the placement tooling (8) and the workpiece. The electric drilling machine located at the wire drilling assembly (5) operates to tap the chamfered workpiece, and a wire drill with only a tapered thread less than one tooth is used to tap the blind hole. When operating in step S5, steps S1 - S4 are operated synchronously; S6. After completing step S5, the turntable (7) displaces the processed workpiece to the blanking assembly (6). The vertical cylinder (62) and the horizontal radial cylinder (63) operate synchronously, and the movable part (82) of the placement tooling (8) displaces away from the fixed part (81), releasing the clamping of the workpiece. The vertical cylinder (62) drives the horizontal radial cylinder (63) to approach the placement tooling (8). At the same time, when the output end of the horizontal radial cylinder (63) extends and is lowered to between the fixed part (81) and the movable part (82) of the placement tooling (8) under the action of the vertical cylinder (62), the horizontal radial cylinder (63) contracts, and the workpiece is pushed through the ejector post (64) coaxial with the workpiece to complete blanking. When operating in step S6, steps S1 - S5 are carried out synchronously.

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