Turnover clamping mechanism for hardware fittings and cleaning machine

Abstract

The turn-over clamping mechanism comprises a mounting plate and a rotating part rotationally arranged on the mounting plate, a driving part is arranged on the mounting plate, a sliding rail is hinged to the rotating part, a first sliding block and a second sliding block are arranged on the sliding rail in a sliding mode, the first sliding block is hinged to the mounting plate, and the second sliding block is hinged to the mounting plate. A connecting rod is arranged between the second sliding block and the mounting plate, one end of the connecting rod is hinged to the second sliding block, a rotating shaft is fixed to the other end of the connecting rod, the connecting rod is hinged to the mounting plate through the rotating shaft, a clamping arm parallel to the connecting rod is arranged on the side, back to the sliding rail, of the mounting plate, one end of the clamping arm is fixedly connected with the rotating shaft, and a clamping assembly is arranged at the other end of the clamping arm. The hardware fitting cleaning device aims at solving the technical problems that due to the fact that hardware fittings make single-face contact with a conveying belt, the contact face is continuously pressed and lacks targeted cleaning measures, the area is not thoroughly cleaned, and the hardware fittings or the hardware fittings and the inner wall of a cleaning frame are frequently collided, so that physical damage such as scratches and deformation occurs to the hardware fittings easily.

Description

Technical Field

[0001] The present invention belongs to the technical field of cleaning equipment, and specifically relates to a turnover clamping mechanism and a cleaning machine for hardware fittings. Background Art

[0002] As mechanical parts and functional components processed from metal materials, the surfaces of hardware fittings are extremely prone to the composite residue of metal chips, non-metallic process media (such as coolant, lubricating grease), and environmental pollutants (such as dust) during processing technologies such as cutting, stamping, and grinding.

[0003] These pollutants will not only cause the following quality problems: physical hazards, sharp metal chips may scratch the mating surface and accelerate the wear of moving pairs; chemical corrosion, acidic components in the residual medium may cause electrochemical corrosion of the base material; assembly hidden dangers, pollutant jamming may affect the key dimension matching accuracy.

[0004] In addition, from the perspective of environmental management analysis, metal processing residues belong to hazardous waste of category HW08. By centralized cleaning to achieve pollutant collection, the cost of hazardous waste treatment can be reduced by about 40%, while meeting the requirements of environmental protection regulations such as the "Evaluation Specification for Comprehensive Utilization of Industrial Solid Waste Resources".

[0005] Therefore, the cleaning of hardware fittings is not only a necessary measure to ensure the functional reliability of hardware fittings and improve the service performance of products, but also a key link to achieve green manufacturing and meet the requirements of environmental protection compliance.

[0006] However, there are two typical modes and their inherent defects in existing cleaning equipment: First, conveyor belt type cleaning. In this mode, the hardware fittings are placed on the conveyor belt and the cleaning is completed by the movement of the conveyor belt. However, since the hardware fittings are always in single-sided contact with the conveyor belt, the contact surface is continuously pressed and lacks targeted cleaning measures, resulting in incomplete cleaning of this area and limited overall cleaning effect.

[0007] Second, rotary frame type cleaning. In this mode, the hardware fittings are placed in a rotatable cleaning frame, and dynamic cleaning is achieved by the rotation of the frame body. Although it can effectively cover the surface of the hardware fittings, during the rotation process, the frequent collisions between the hardware fittings and with the inner wall of the cleaning frame are likely to cause physical damages such as scratches and deformations, posing a risk of secondary damage. Summary of the Invention

[0008] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a turnover clamping mechanism and a cleaning machine for hardware fittings, so as to solve the technical problems that the hardware fittings are in single-sided contact with the conveyor belt, the contact surface is continuously pressed and lacks targeted cleaning measures, resulting in incomplete cleaning of this area, and the frequent collisions between the hardware fittings or between the hardware fittings and the inner wall of the cleaning frame are likely to cause physical damages such as scratches and deformations.

[0009] One aspect of the present invention: To achieve the foregoing invention object, the technical solution adopted by the present invention includes: A turning and clamping mechanism for hardware fittings, including a mounting plate and a rotating part rotatably arranged on the mounting plate. The mounting plate is vertically arranged, and a driving component for driving the rotating part to rotate is arranged on the mounting plate. A slide rail is hinged to the rotating part, and the hinge point of the slide rail and the rotating part deviates from the rotating connection point of the rotating part and the mounting plate. A first slider and a second slider are slidably arranged on the slide rail. The first slider is hinged to the mounting plate, and a connecting rod is arranged between the second slider and the mounting plate. One end of the connecting rod is hinged to the second slider, and a rotating shaft is fixed at the other end and is hinged to the mounting plate through the rotating shaft. The hinge point of the connecting rod and the mounting plate, the hinge point of the first slider and the mounting plate, and the rotating connection point of the rotating part and the mounting plate are arranged in sequence from top to bottom in the vertical direction. When the hinge point of the slide rail and the rotating part is on the same horizontal line as the rotating connection point of the rotating part and the mounting plate, the connecting rod is parallel to this horizontal line; A clamping arm parallel to the connecting rod is arranged on the side of the mounting plate facing away from the slide rail. One end of the clamping arm is fixedly connected to the rotating shaft, and a clamping component is arranged at the other end. The clamping arm has a first position and a second position on the same horizontal line during the rotation process. By driving the rotating part to rotate through the driving component, the clamping arm can reciprocally swing between the first position and the second position under the transmission action of the slide rail and the connecting rod. When the clamping arm swings from the first position to the second position, the clamping component is in a clamping state. When the clamping arm swings from the second position to the first position, the clamping component is in a relaxed state.

[0010] Compared with the prior art, the advantages of the present invention include: (1) A turning and clamping mechanism for hardware fittings provided by the present invention can effectively remove stains on both the front and back sides of the hardware fittings during cleaning, avoiding the problem that the contact surface of the fittings is continuously pressed and insufficiently cleaned due to long-term single-sided contact with the conveyor belt, thus solving the technical problem of incomplete single-sided cleaning; In addition, compared with the cleaning method of traditional cleaning frames, the mutual collision of hardware fittings and the friction with the inner wall of the cleaning frame during cleaning are reduced, significantly reducing the risk of secondary damage such as scratches and deformation, and achieving the dual goals of efficient cleaning and product protection.

[0011] (2) A turning and clamping mechanism for hardware fittings provided by the present invention forms a timing coupling between the displacement trajectory of the clamping arm and the start-stop action of the clamping component: when the clamping arm swings from the second position to the first position, it triggers the clamping component to switch from the relaxed state to the clamping state, completing the stable clamping of the hardware fittings; When the clamping arm returns from the first position to the second position, the clamping assembly is controlled to return from the clamped state to the relaxed state, thereby achieving smooth release of the workpiece. This displacement-action timing coordinated design, combined with the continuous operation of the drive mechanism, can form an assembly line-style flipping and clamping operation for hardware accessories, significantly improving the flipping processing efficiency of hardware accessories.

[0012] Further, the clamping assembly comprises a first clamping portion and a second clamping portion which are arranged opposite to each other, the first clamping portion and the second clamping portion are both movably connected to a clamping arm, and a push rod is movably arranged on the clamping arm, and the first clamping portion and the second clamping portion can be moved closer to or farther from each other by moving the push rod; A transmission component is arranged between the push rod and the clamping arm. When the swinging direction of the clamping arm changes, the push rod can be driven by the transmission component to generate displacement so that the first clamping part and the second clamping part are closer to or farther from each other.

[0013] In the present invention, the swinging action of the clamping arm is combined with the clamping action of the clamping assembly through a transmission component. When the clamping arm swings from the second position to the first position, the driving push rod moves so that the first clamping part and the second clamping part are close to each other to achieve clamping. When the clamping arm swings from the first position to the second position, the driving push rod moves so that the first clamping part and the second clamping part are separated from each other to release the clamping of the hardware accessories. A high degree of automation is achieved, and only one driving source (i.e., driving component) is required to achieve continuous flipping and clamping actions. The operation is relatively simple, and the number of driving devices used is reduced, thereby reducing production costs and improving economic benefits.

[0014] Further, the transmission component includes a third slider slidably arranged on the clamping arm, the third slider can slide along the length direction of the clamping arm, the third slider is connected to the push rod, and a semicircular slide groove is opened on the side of the mounting plate facing away from the slide rail with the center of the rotating shaft as the center of the circle, the semicircular slide groove is adapted to the swing trajectory of the clamping arm, and a semicircular partition is used in the middle of the semicircular slide groove to divide the semicircular slide groove into an annular slideway composed of a first slide groove and a second slide groove connected end to end; The third slider is connected to a moving column, and the moving column is located in the annular slide. During the reciprocating swing of the clamping arm, the moving column slides circularly in the annular slide, and during the process of the moving column sliding from the first slide groove to the second slide groove or from the second slide groove to the first slide groove, the third slider can be driven to slide along the length direction of the clamping arm to cause the push rod to be displaced in the length direction of the clamping arm.

[0015] Further, the transmission component includes a third slider slidably disposed on the clamping arm. The third slider can slide along the length direction of the clamping arm. The third slider is connected to the push rod. On the side of the mounting plate facing away from the slide rail, a semi-circular chute is formed with the center of the rotating shaft as the center. The semi-circular chute is adapted to the swinging trajectory of the clamping arm. The middle of the semi-circular chute is divided into an annular slideway composed of a first chute and a second chute connected end to end by a semi-circular partition; The third slider is connected with a moving column. The moving column is located in the annular slideway. During the reciprocating swing of the clamping arm, the moving column slides cyclically in the annular slideway. When the moving column slides from the first chute to the second chute or from the second chute to the first chute, it can drive the third slider to slide along the length direction of the clamping arm so that the push rod generates a displacement in the length direction of the clamping arm.

[0016] Further, the moving column is slidably connected to the third slider. The moving column can slide along the sliding direction of the third slider. An elastic member is disposed between the moving column and the third slider. One end of the elastic member is connected to the moving column, and the other end is connected to the third slider.

[0017] In the present invention: (1) Through the sliding cooperation of the moving column and the third slider and the integration of the elastic member, a buffer system is constructed. When the hardware fitting is subjected to an abnormal clamping load, the third slider is forced to displace towards the clamping component. The third slider compresses the elastic member, and the elastic member generates a reverse damping force to form a dynamic force balance, which not only avoids the deformation of the workpiece caused by excessive clamping force, but also adapts to the clamping requirements in real time through the elastic deformation amount, realizing the "flexible clamping" effect.

[0018] (2) Through the sliding connection between the moving column and the third slider and the setting of the elastic member, the moving column will slide elastically in the annular slideway. Under the action of the elastic member, the moving column can always abut against the side wall of the annular slideway, and can adaptively adjust the position of the moving column in the annular slideway as the shape of the annular slideway changes, reducing the possibility of the moving column getting stuck in the annular slideway and making the operation smoother.

[0019] Further, guiding members are disposed at both joints of the first chute and the second chute. Through the two guiding members, the moving column can only move in one direction in the annular slideway.

[0020] Further, buffer pads are disposed on the opposite sides of the first clamping portion and the second clamping portion.

[0021] The second aspect of the present invention: A cleaning machine, comprising: A bracket; A turning-over clamping mechanism, and the mounting plate is fixedly connected to the bracket; A conveying mechanism mounted on a bracket, the conveying mechanism comprising a first conveying part and a second conveying part, the first conveying part and the second conveying part are respectively located on both sides of the turning and clamping mechanism. When the clamping arm is in the first position, the clamping assembly can clamp the hardware fittings on the first conveying part. When the clamping arm is in the second position, the clamping assembly can release the clamping of the hardware fittings and let them fall onto the second conveying part; A cleaning mechanism mounted on the bracket, the cleaning mechanism cleaning the hardware fittings located on the first conveying part and the second conveying part.

[0022] Furthermore, when the clamping arm is in a horizontal state, the length direction of the clamping arm is respectively consistent with the length directions of the first conveying part and the second conveying part; The first conveying part has a first input shaft, and a first transmission assembly is arranged between the first conveying part and the clamping arm. Through the first transmission assembly, only during the swinging process of the clamping arm from the first position to the second position is the first input shaft driven to rotate so as to make the first conveying part operate.

[0023] In the present invention: Through this collaborative control mechanism, during the process of the clamping assembly clamping the hardware fittings on the first conveying part and transferring them to the second conveying part, the first input shaft drives the first conveying part to start synchronously, accurately pushing the subsequent hardware fittings forward to fill the position to the area to be clamped. Specifically, there are the following advantages: (1) During the process of the clamping assembly changing from the relaxed state to the clamping state, the first conveying part remains stationary, making the position of the clamped hardware fittings relatively fixed, and enabling a relatively accurate grasping action to be completed when the clamping assembly is displaced to the preset position; In addition, when the clamping assembly completes the clamping action, the first conveying part immediately starts the filling position program, forming a timing closed loop of "clamping - filling position", creating conditions for the clamping in the next working cycle.

[0024] (2) Each time the first conveying part pauses, a loading window is formed, which not only reserves sufficient time for manually or mechanically placing the hardware fittings, but also realizes the discrete control of the hardware fitting flow through intermittent movement; This mode effectively avoids the problem of hardware fitting accumulation that may be caused by continuous conveying, keeps the surface of the first conveying part always in a single - layer and orderly arrangement state, enables the turning and clamping work to proceed orderly, and at the same time increases the residence time of the hardware fittings on the first conveying part, thereby increasing the cleaning time of the hardware fittings and making it have a better cleaning effect.

[0025] (3) Each hardware fitting is positioned through each step - by - step displacement of the first conveying part, so that each time the hardware fitting is clamped, it is in the same reference position. The improvement of the positioning accuracy will increase the grasping success rate of the clamping assembly and reduce the occurrence of clamping failure problems caused by the displacement deviation of the hardware fittings.

[0026] Further, the second conveying part has a second input shaft, and a second transmission assembly is arranged between the second conveying part and the clamping arm. Through the second transmission assembly, the second input shaft is only driven to rotate to operate the second conveying part during the swinging process of the clamping arm from the second position to the first position. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 Structural schematic of the embodiment of the present invention Figure 1 ; Figure 2 is Figure 1 the sectional structural schematic diagram; Figure 3 Structural schematic of the embodiment of the present invention Figure 2 ; Figure 4 is the structural schematic diagram when the clamping arm is in the second position; Figure 5 is the structural schematic diagram when the clamping arm is in the first position; Figure 6 Structural schematic of the embodiment of the present invention Figure 3 .

[0029] Reference numerals: Mounting plate 1, rotating part 2, driving component 3, slide rail 4, first slider 5, second slider 6, connecting rod 7, rotating shaft 8, clamping arm 9, first clamping part 10, second clamping part 11, push rod 12, third slider 13, sliding hole 14, semi-circular partition 15, first chute 16, second chute 17, annular slideway 18, moving column 19, elastic member 20, guiding member 21, first conveying part 22, second conveying part 23, baffle 24, first input shaft 25, gear 26, first toothed ring 27, first ratchet 28, first pawl 29, first plate body 30, second input shaft 31, second toothed ring 32, second ratchet 33, second pawl 34, second plate body 35. Detailed Embodiments

[0030] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention through long-term research and a large number of practices. The following will further explain the technical solution, its implementation process and principle in combination with the drawings in the embodiments of the present application and specific implementation cases.

[0031] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, the present invention covers any alternatives, modifications, equivalent methods and solutions made within the spirit, principle and scope of the present invention defined by the claims. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] In the description of the present application, terms such as "first", "second", "third" and similar words do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0033] In the description of the present application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application 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 therefore should not be construed as a limitation of the present application. In addition, when using position terms such as both sides, outer sides, upper and lower, etc., it should be understood that they are only used for easy understanding and description, considering that the structure may be oriented to other positions.

[0034] In the description of the present application, unless otherwise clearly specified and defined, the technical terms or scientific terms used should have the ordinary meaning understood by those of ordinary skill in the art to which the present application belongs. Terms such as "installed", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or a contact connection or an integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0035] One aspect of the present invention: Please refer to Figures 1-6 , the present invention provides a technical solution: Refer to Figure 3, A turning clamping mechanism for hardware fittings, including a mounting plate 1 and a rotating part 2 rotatably arranged on the mounting plate 1. The mounting plate 1 is vertically arranged, and a driving component 3 for driving the rotation of the rotating part 2 is arranged on the mounting plate 1. A slide rail 4 is hinged to the rotating part 2, and the hinge point of the slide rail 4 and the rotating part 2 deviates from the rotation connection point of the rotating part 2 and the mounting plate 1. In other words, the slide rail 4 is eccentrically connected to the rotating part 2, so that a crank - connecting rod 7 mechanism is formed between the rotating part 2 and the slider. By the rotation of the rotating part 2, the connecting rod 7 can be pushed to make a reciprocating motion.

[0036] A first slider 5 and a second slider 6 are slidably arranged on the slide rail 4. The first slider 5 is hinged to the mounting plate 1. When the connecting rod 7 makes a reciprocating motion as the rotating part 2 rotates, the slide rail 4 slides on the first slider 5 and makes a reciprocating swing. The first slider 5 rotates reciprocally as the slide rail 4 swings. It should be noted that since the angle of the reciprocal rotation of the first slider 5 cannot reach 180 degrees at this time, the second slider 6 and the connecting rod 7 need to be further introduced. A connecting rod 7 is arranged between the second slider 6 and the mounting plate 1. One end of the connecting rod 7 is hinged to the second slider 6, and a rotating shaft 8 is fixed at the other end and is hinged to the mounting plate 1 through the rotating shaft 8. The hinge point of the connecting rod 7 and the mounting plate 1, the hinge point of the first slider 5 and the mounting plate 1, and the rotation connection point of the rotating part 2 and the mounting plate 1 are arranged in sequence from top to bottom in the vertical direction. When the hinge point of the slide rail 4 and the rotating part 2 is on the same horizontal line as the rotation connection point of the rotating part 2 and the mounting plate 1, the connecting rod 7 is parallel to this horizontal line. Refer to Figure 4 , 5 , When the rotating part 2 rotates one week, the slide rail 4 makes a reciprocating swing once under the restriction of the first slider 5. At the same time, the connecting rod 7 makes a reciprocating swing with an amplitude of 180 degrees under the transmission of the second slider 6. And since the hinge point of the slide rail 4 and the rotating part 2 is on the same horizontal line as the rotation connection point of the rotating part 2 and the mounting plate 1, the connecting rod 7 is parallel to this horizontal line. Therefore, the connecting rod 7 makes a reciprocating swing between two different positions on the same horizontal line, and the rotating shaft 8 makes a reciprocating rotation with an angle of 180 degrees as the connecting rod 7 swings.

[0037] Refer to Figure 1 , A clamping arm 9 parallel to the connecting rod 7 is arranged on the side of the mounting plate 1 facing away from the slide rail 4. One end of the clamping arm 9 is fixedly connected to the rotating shaft 8. This design makes the running tracks of the connecting rod 7 and the clamping arm 9 the same (that is, when the hinge point of the slide rail 4 and the rotating part 2 is on the same horizontal line as the rotation connection point of the rotating part 2 and the mounting plate 1, the connecting rod 7 is parallel to this horizontal line, and the clamping arm 9 is also parallel to this horizontal line. Therefore, when the connecting rod 7 makes a reciprocating swing with an amplitude of 180 degrees, the clamping arm 9 also makes a reciprocating swing with an amplitude of 180 degrees).

[0038] The other end of the clamping arm 9 is provided with a clamping assembly. The swinging of the clamping arm 9 can drive the clamping assembly to swing together. During the rotation process of the clamping arm 9, there are a first position and a second position on the same horizontal line (the reason is that the connecting rod 7 reciprocates between two different positions on the same horizontal line, and these two positions correspond to the first position and the second position).

[0039] Refer to Figure 4 、 5 , the driving component 3 continuously drives the rotating part 2 to rotate. Under the transmission action of the slide rail 4 and the connecting rod 7, the clamping arm 9 can reciprocate between the first position and the second position. When the clamping arm 9 swings from the first position to the second position, the clamping assembly is in a clamped state. When the clamping arm 9 swings from the second position to the first position, the clamping assembly is in a relaxed state. Specifically, the driving component 3 can be a mechanical structure such as a motor that drives an object to rotate. The motor is installed on the mounting plate 1, and the output shaft of the motor is fixedly connected to the rotating part 2.

[0040] It should be understood that when the swinging direction of the clamping arm 9 changes, it should also be the switching time of the clamped and relaxed states of the clamping assembly, that is, when the clamping arm 9 swings from the second position to the first position, the clamping assembly will switch from the relaxed state to the clamped state, so as to clamp the hardware fitting. When the clamping arm 9 swings from the first position to the second position, the clamping assembly will switch from the clamped state to the relaxed state, so as to release the clamping of the hardware fitting. During this process, the hardware fitting realizes the turning operation.

[0041] Through the design of the turning clamping mechanism, when cleaning the hardware fitting, it can effectively remove the stains on both the front and back sides of the hardware fitting, avoiding the problem that the contact surface of the fitting is continuously pressed and insufficiently cleaned due to long-term single-sided contact with the conveyor belt, thus solving the technical problem of incomplete single-sided cleaning; and compared with the cleaning method of the traditional cleaning frame, it also reduces the mutual collision of the hardware fittings and the friction with the inner wall of the cleaning frame during the cleaning process, significantly reducing the risk of secondary damage such as scratches and deformation, and achieving the dual goals of efficient cleaning and product protection.

[0042] In addition, the displacement trajectory of the clamping arm 9 and the start-stop action of the clamping assembly are coupled in time sequence: when the clamping arm 9 swings from the second position to the first position, it triggers the clamping assembly to switch from the relaxed state to the clamped state, completing the stable clamping of the hardware fitting; when the clamping arm 9 returns from the first position to the second position, it controls the clamping assembly to return from the clamped state to the relaxed state, realizing the smooth release of the workpiece. This time-sequence collaborative design of displacement-action, combined with the continuous operation of the driving mechanism, can form a pipeline-type turning and clamping operation for the hardware fitting, significantly improving the turning processing efficiency.

[0043] Refer to Figure 1 、 2, in this embodiment: The clamping assembly includes a first clamping portion 10 and a second clamping portion 11 which are oppositely arranged. Both the first clamping portion 10 and the second clamping portion 11 are movably connected to the clamping arm 9. The first clamping portion 10 and the second clamping portion 11 can approach or move away from each other. A push rod 12 is movably arranged on the clamping arm 9. By moving the push rod 12, the first clamping portion 10 and the second clamping portion 11 can approach or move away from each other. During the process of the first clamping portion 10 and the second clamping portion 11 approaching each other, the hardware fitting is clamped. During the process of the first clamping portion 10 and the second clamping portion 11 moving away from each other, the clamping of the hardware fitting is released.

[0044] A transmission assembly is arranged between the push rod 12 and the clamping arm 9. When the swinging direction of the clamping arm 9 changes, the push rod 12 can be driven to generate a displacement through the transmission component so that the first clamping portion 10 and the second clamping portion 11 approach or move away from each other. That is, when the clamping arm 9 swings from the second position to the first position, the push rod 12 is driven to move so that the first clamping portion 10 and the second clamping portion 11 approach each other; when the clamping arm 9 swings from the first position to the second position, the push rod 12 is driven to move so that the first clamping portion 10 and the second clamping portion 11 move away from each other.

[0045] By combining the swinging action of the clamping arm 9 with the clamping action of the clamping assembly through the transmission component, when the clamping arm 9 swings from the second position to the first position, the push rod 12 is driven to move so that the first clamping portion 10 and the second clamping portion 11 approach each other to achieve clamping. When the clamping arm 9 swings from the first position to the second position, the push rod 12 is driven to move so that the first clamping portion 10 and the second clamping portion 11 move away from each other to release the clamping of the hardware fitting, achieving a high degree of automation. And only one driving source (i.e., the driving component 3) is required to achieve continuous turning and clamping actions. The operation is relatively simple. At the same time, the number of driving devices used is reduced, the production cost is lowered, and the economic benefit is improved.

[0046] It should be noted that the cooperation structure between the clamping arm 9 and the clamping assembly can also be: The clamping assembly includes a first clamping portion 10 and a second clamping portion 11 which are oppositely arranged. Both the first clamping portion 10 and the second clamping portion 11 are movably connected to the clamping arm 9. The first clamping portion 10 and the second clamping portion 11 can approach or move away from each other. A push rod 12 is movably arranged on the clamping arm 9. By moving the push rod 12, the first clamping portion 10 and the second clamping portion 11 can approach or move away from each other. A driving structure for driving the push rod 12 to move is further arranged on the clamping arm 9. A first sensor and a second sensor (not shown in the figure) are arranged on the mounting plate 1. The first sensor and the second sensor respectively correspond to the first position and the second position. The clamping assembly further includes a controller, and the controller is respectively in signal connection with the first sensor and the second sensor.

[0047] When the clamping arm 9 swings from the second position to the first position, the first sensor senses the position change of the clamping arm 9 and transmits a signal to the controller, which then controls the driving push rod 12 to move so that the first clamping part 10 and the second clamping part 11 approach each other; when the clamping arm 9 swings from the first position to the second position, the second sensor senses the position change of the clamping arm 9 and transmits a signal to the controller, which then controls the driving push rod 12 to move so that the first clamping part 10 and the second clamping part 11 move away from each other.

[0048] Further, the first clamping part 10 and the second clamping part 11 are symmetrically arranged with respect to the midline. The first clamping part 10 includes a first clamping plate and a first link assembly, and the second clamping part 11 includes a second clamping plate and a second link assembly. The connecting plate is fixedly connected to the clamping arm 9.

[0049] The first link assembly includes a first link, a second link, and a third link. The two ends of the first link are respectively hinged to the first clamping plate and the connecting plate, and the two ends of the second link are respectively hinged to the first clamping plate and the connecting plate. The first link, the second link, the first clamping plate, and the connecting plate together form a parallelogram link mechanism. One end of the third link is hinged to the extension of the second link extending towards the push rod 12, and the other end is hinged to the push rod 12.

[0050] The second link assembly includes a fourth link, a fifth link, and a sixth link. The two ends of the fourth link are respectively hinged to the second clamping plate and the connecting plate, and the two ends of the fifth link are respectively hinged to the second clamping plate and the connecting plate. The fourth link, the fifth link, the second clamping plate, and the connecting plate together form a parallelogram link mechanism. One end of the sixth link is hinged to the extension of the fifth link extending towards the push rod, and the other end is hinged to the push rod 12.

[0051] When the push rod 12 moves towards the clamping assembly, under the transmission of the first link assembly and the second link assembly, the first clamping plate and the second clamping plate move away from each other. Conversely, when the push rod 12 moves away from the clamping assembly, the first clamping plate and the second clamping plate also move away from each other.

[0052] Of course, in addition to the above specific structures, the first clamping part 10 and the second clamping part 11 can also be structures well-known to those skilled in the art. For example, the rotation of a gear drives the synchronous linear movement of two racks on both sides to achieve the approach or separation of the first clamping part 10 and the second clamping part 11.

[0053] Refer to Figure 1 、 2, in this embodiment: The transmission component includes a third slider 13 slidably disposed on the clamping arm 9. The third slider 13 can slide along the length direction of the clamping arm 9. Specifically, a sliding hole 14 extending along the length direction of the clamping arm 9 is provided inside the clamping arm 9. The third slider 13 is located in the sliding hole 14 and can slide along the length direction of the sliding hole 14. The third slider 13 is connected to the push rod 12. The movement of the third slider 13 in the length direction of the clamping arm 9 will drive the push rod 12 to move together accordingly.

[0054] On the side of the mounting plate 1 facing away from the slide rail 4, a semi-circular chute is opened with the center of the rotating shaft 8 as the center. The semi-circular chute is adapted to the swinging trajectory of the clamping arm 9, that is, the two ends of the semi-circular chute are on the same horizontal line, and the concave part of the semi-circular chute faces downward. The middle of the semi-circular chute is divided into an annular slideway 18 composed of a first chute 16 and a second chute 17 connected end to end by a semi-circular partition 15.

[0055] The third slider 13 is connected with a moving column 19, and the moving column 19 is located in the annular slideway 18. Specifically, a through hole communicating with the sliding hole 14 is opened on the side of the third slider 13 close to the mounting plate 1. The length direction of the through hole is consistent with the length direction of the clamping arm 9. One end of the moving column 19 is connected to the third slider 13, and the other end is located in the annular slideway 18. During the reciprocating swing of the clamping arm 9, the moving column 19 slides cyclically in the annular slideway 18. It should be noted that when the moving column 19 is located in the first chute 16 and the second chute 17, the position of the third slider 13 in the length direction of the clamping arm 9 is different. Therefore, when the moving column 19 slides from the first chute 16 to the second chute 17 or from the second chute 17 to the first chute 16, it can drive the third slider 13 to slide along the length direction of the clamping arm 9 so that the push rod 12 generates a displacement in the length direction of the clamping arm 9.

[0056] Specifically, when the clamping arm 9 swings and the moving column 19 slides from the first sliding groove 16 to the second sliding groove 17, the moving column 19 moves away from the clamping assembly in the length direction of the clamping arm 9, thereby driving the third slider 13 to move away from the clamping assembly. At the same time, the push rod 12 also moves away from the clamping assembly synchronously, and the first clamping portion 10 and the second clamping portion 11 approach each other to clamp the hardware fitting. Since the distance between the connecting portions of the first sliding groove 16 and the second sliding groove 17 is very short, the moving column 19 can complete the position transformation quickly, and thus the clamping assembly can clamp the hardware fitting quickly. That is, when the moving column 19 moves to the initial position of the connecting portion of the first sliding groove 16 and the second sliding groove 17, the clamping assembly is still in the open state. After the clamping arm 9 swings a short distance, the moving column 19 moves to the end position of the connecting portion of the first sliding groove 16 and the second sliding groove 17, and the clamping assembly clamps, thereby achieving a fast clamping. In addition, since the swinging amplitude of the clamping arm 9 is very small at this time, the position of the clamping assembly basically does not change much, so the clamping assembly can clamp the hardware fitting at a predetermined position to achieve the function of positioning and clamping.

[0057] Similarly, when the clamping arm 9 swings and the moving column 19 slides from the second sliding groove 17 to the first sliding groove 16, the moving column 19 moves towards the clamping assembly in the length direction of the clamping arm 9, thereby driving the third slider 13 to move towards the clamping assembly. At the same time, the push rod 12 also moves towards the clamping assembly synchronously, and the first clamping portion 10 and the second clamping portion 11 move away from each other to release the clamping of the hardware fitting. Since the distance between the connecting portions of the second sliding groove 17 and the first sliding groove 16 is very short, the moving column 19 can complete the position transformation quickly, and thus the clamping assembly can quickly release the clamping of the hardware fitting. That is, when the moving column 19 moves to the initial position of the connecting portion of the first sliding groove 16 and the second sliding groove 17, the clamping assembly is still in the clamped state. After the clamping arm 9 swings a short distance, the moving column 19 moves to the end position of the connecting portion of the second sliding groove 17 and the first sliding groove 16, and the clamping assembly quickly relaxes. In addition, since the swinging amplitude of the clamping arm 9 is very small at this time, the position of the clamping assembly basically does not change much, so the clamping assembly can release the hardware fitting at a predetermined position to achieve the function of positioning and releasing.

[0058] The moving column 19 is slidably connected to the third slider 13. The moving column 19 can slide along the sliding direction of the third slider 13. An elastic member 20 is provided between the moving column 19 and the third slider 13. One end of the elastic member 20 is connected to the moving column 19, and the other end is connected to the third slider 13. Specifically, the elastic member 20 can be a spring, or other elastic support structures such as an elastic column or an elastic sheet.

[0059] A buffer system is constructed through the sliding fit of the moving column 19 and the third slider 13 and the integration of the elastic member 20. When the hardware fitting is subjected to an abnormal clamping load, the third slider 13 is forced to displace towards the clamping assembly direction. The third slider 13 compresses the elastic member 20, and the elastic member 20 generates a reverse damping force to form a dynamic force balance, which not only avoids workpiece deformation caused by excessive clamping force, but also adapts to the clamping requirements in real time through the elastic deformation amount, achieving the "flexible clamping" effect.

[0060] In addition, through the sliding connection between the moving column 19 and the third slider 13 and the setting of the elastic member 20, the moving column 19 will slide elastically in the annular slideway 18. Under the action of the elastic member 20, the moving column 19 can always abut against the side wall of the annular slideway 18, and can adaptively adjust the position of the moving column 19 in the annular slideway 18 as the shape of the annular slideway 18 changes, reducing the possibility of the moving column 19 getting stuck in the annular slideway 18 and making the operation smoother.

[0061] Refer to Figure 1 , in this embodiment: Guide members 21 are provided at both joints of the first chute 16 and the second chute 17. Through the two guide members 21, the moving column 19 can only move in one direction in the annular slideway 18. Thus, during the reciprocating swing of the clamping arm 9, the clamping assembly realizes the cycle of clamping - relaxation - clamping.

[0062] Specifically, grooves are provided at both joints of the first chute 16 and the second chute 17. The lower end of the guide member 21 is located in the groove. The guide member 21 has an inclined surface, and a return spring is provided between the guide member 21 and the groove. During the movement of the moving column 19 in the annular slideway 18, the guide member 21 is pressed into the groove through the inclined surface. After the moving column 19 passes through the guide member 21, the guide member 21 bounces up under the action of the return spring, and the bounced guide member 21 will limit the moving column 19 from sliding back, so that the moving column 19 can only move in one direction in the annular slideway 18.

[0063] In this embodiment: In order to further increase the buffer protection for the hardware fitting, buffer pads are provided on the opposite sides of the first clamping portion 10 and the second clamping portion 11.

[0064] The second aspect of the present invention: Refer to Figure 1 , 2, A cleaning machine, comprising a bracket, a turning and clamping mechanism, a conveying mechanism and a cleaning mechanism. The mounting plate 1 is fixedly connected to the bracket. The conveying mechanism is mounted on the bracket. The conveying mechanism includes a first conveying part 22 and a second conveying part 23. The first conveying part 22 and the second conveying part 23 are respectively located on both sides of the turning and clamping mechanism. When the clamping arm 9 is in the first position, the clamping assembly can clamp the hardware fittings on the first conveying part 22. When the clamping arm 9 is in the second position, the clamping assembly can release the clamping of the hardware fittings and make them fall on the second conveying part 23.

[0065] The cleaning mechanism is mounted on the bracket, and the cleaning mechanism cleans the hardware fittings located on the first conveying part 22 and the second conveying part 23.

[0066] The hardware fittings move with the first conveying part 22, and the cleaning mechanism cleans them. When the hardware fittings move to the position to be clamped, the clamping arm 9 is in the first position, and the clamping assembly clamps the hardware fittings on the first conveying part 22. The clamping arm 9 continues to swing so that the clamping arm 9 is in the second position. The hardware fittings move with the clamping assembly to the release position of the hardware fittings. At this time, the hardware fittings have been turned over. The clamping assembly releases the clamping of the hardware fittings and makes them fall on the second conveying part 23. The hardware fittings move with the second conveying part 23. During this process, the cleaning mechanism cleans the turned-over hardware fittings. The continuous operation of the whole device will realize the continuous cleaning of the hardware fittings and achieve a higher cleaning efficiency of the hardware fittings.

[0067] In this embodiment: In order to prevent the hardware fittings from slipping off the first conveying part 22, a baffle 24 is provided on the first conveying part 22. The baffle 24 is arranged perpendicular to the conveying direction of the first conveying part 22. The baffle 24 restricts the position of the hardware fittings so that they are not easy to slip off the first conveying part 22. At the same time, the position where the baffle 24 is provided is consistent with the clamping position of the clamping assembly for the hardware fittings.

[0068] In this embodiment: When the clamping arm 9 is in a horizontal state, the length direction of the clamping arm 9 is respectively consistent with the length directions of the first conveying part 22 and the second conveying part 23. In this embodiment, the conveying directions of the first conveying part 22 and the second conveying part 23 are the same.

[0069] The first conveying part 22 has a first input shaft 25. By rotating the first input shaft 25, the first conveying part 22 can be operated. The first conveying part 22 works to convey the hardware fittings located on the first conveying part 22 forward. A first transmission assembly is provided between the first conveying part 22 and the clamping arm 9. The clamping arm 9 only drives the first input shaft 25 to rotate to make the first transmission part operate during the process of swinging from the first position to the second position, so as to convey the hardware fittings located on the first conveying part 22 forward; during the process of swinging from the second position to the first position, the first input shaft 25 is not driven to rotate, and the first transmission part will not operate correspondingly.

[0070] Through this collaborative control mechanism, during the process of the clamping assembly clamping the hardware fittings on the first conveyor part 22 and transferring them to the second conveyor part 23, the first input shaft 25 drives the first conveyor part 22 to start synchronously, accurately pushing the subsequent hardware fittings forward to fill the position to the area to be clamped. Specifically, there are the following advantages: ①. During the process of the clamping assembly changing from the relaxed state to the clamping state, the first conveyor part 22 remains stationary, making the position of the clamped hardware fittings relatively fixed, and enabling a more accurate grasping action when the clamping assembly is displaced to the preset position; In addition, when the clamping assembly completes the clamping action, the first conveyor part 22 immediately starts the filling position program, forming a timing closed loop of "clamping - filling position", creating conditions for the clamping in the next working cycle.

[0071] ②. Each time the first conveyor part 22 pauses, a loading window is formed, which not only reserves sufficient time for manually or mechanically placing the hardware fittings, but also realizes the discrete control of the hardware fitting flow through intermittent movement; This mode effectively avoids the problem of hardware fitting accumulation that may be caused by continuous conveying, keeps the surface of the first conveyor part 22 always in a single - layer and orderly arrangement state, enables the turning - over clamping work to proceed orderly, and at the same time increases the residence time of the hardware fittings on the first conveyor part 22, thereby increasing the cleaning time of the hardware fittings and achieving a better cleaning effect.

[0072] ③. Each hardware fitting is positioned through each step - by - step displacement of the first conveyor part 22, so that each time the hardware fitting is clamped, it is in the same reference position. The improvement of the positioning accuracy will increase the grasping success rate of the clamping assembly and reduce the occurrence of clamping failure problems caused by the displacement deviation of the hardware fittings.

[0073] Refer to Figure 6, specifically, a gear 26 is coaxially and fixedly connected to the rotating shaft 8. The first transmission assembly includes a first toothed ring 27, a first ratchet 28, a first pawl 29, and a first plate body 30. The first plate body 30 is fixedly connected to the side of the first ratchet 28 close to it. The first ratchet 28 is an internally meshing ratchet and is coaxially arranged with the first input shaft 25. The first pawl 29 is located inside the first ratchet 28 and meshes with the first ratchet 28. The first toothed ring 27 is coaxially fixed outside the first ratchet 28 and meshes with the gear 26. The first input shaft 25 passes through the first plate body 30 and enters the inside of the first ratchet 28. The first pawl 29 is installed at the end of the first input shaft 25, and a first torsion spring is installed on the first pawl 29. The rotation of the rotating shaft 8 drives the gear 26 to rotate, the rotation of the gear 26 drives the first toothed ring 27 to rotate, the first toothed ring 27 drives the first ratchet 28 to rotate, and the meshing relationship between the first ratchet 28 and the first pawl 29 is determined according to the different swinging directions of the clamping arm 9. That is, during the process of the clamping arm 9 rotating from the first position to the second position, the rotation of the first ratchet 28 can drive the first pawl 29 to rotate, and then the first input shaft 25 rotates.

[0074] In this embodiment: Similarly to the first transmission part 22, the second transmission part 23 has a second input shaft 31. A second transmission assembly is provided between the second transmission part 23 and the clamping arm 9. Through the second transmission assembly, the second input shaft 31 is only driven to rotate to make the second transmission part 23 operate during the process of the clamping arm 9 swinging from the second position to the first position.

[0075] The same as above, the above settings can effectively avoid the problem of hardware accessories accumulating on the second transmission part 23, and also increase the residence time of the hardware accessories on the second transmission part 23, thereby increasing the cleaning time of the hardware accessories and making it have a better cleaning effect.

[0076] Refer to Figure 6 , specifically, the second transmission assembly includes a second toothed ring 32, a second ratchet 33, a second pawl 34, and a second plate body 35. The second plate body 35 is fixedly connected to the side of the second ratchet 33 close to it. The second ratchet 33 is an internally meshing ratchet and is coaxially arranged with the second input shaft 31. The second pawl 34 is located inside the second ratchet 33 and meshes with the second ratchet 33. The second toothed ring 32 is coaxially fixed outside the second ratchet 33 and meshes with the gear 26. The second input shaft 31 passes through the second plate body 35 and enters the inside of the second ratchet 33. The second pawl 34 is installed at the end of the second input shaft 31, and a second torsion spring is installed on the second pawl 34. The rotation of the rotating shaft 8 drives the gear 26 to rotate, the rotation of the gear 26 drives the second toothed ring 32 to rotate, the second toothed ring 32 drives the second ratchet 33 to rotate, and the meshing relationship between the second ratchet 33 and the second pawl 34 is determined according to the different swinging directions of the clamping arm 9. That is, during the process of the clamping arm 9 rotating from the second position to the first position, the rotation of the second ratchet 33 can drive the second pawl 34 to rotate, and then the second input shaft 31 rotates.

[0077] It should be understood that the above embodiments are only used to illustrate the technical concept and features of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can be made. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A flip clamping mechanism for hardware accessories, characterized in that: The cam is an angularly-coupled device for translating a rotation of the first and second sliding members from one another, the cam being configured to move the first and second sliding members relative to each other. A clamping arm parallel to the connecting rod is arranged on the side of the mounting plate facing away from the slide rail, one end of the clamping arm is fixedly connected to the rotating shaft, and the other end is arranged with a clamping assembly. The clamping arm has a first position and a second position on the same horizontal line during rotation. The rotating part is driven to rotate by a driving component, and the clamping arm can swing back and forth between the first position and the second position under the transmission action of the slide rail and the connecting rod. When the clamping arm swings from the first position to the second position, the clamping assembly is in a clamped state, and when the clamping arm swings from the second position to the first position, the clamping assembly is in a relaxed state.

2. The flip clamping mechanism for hardware accessories according to claim 1, characterized in that: The clamping assembly comprises a first clamping portion and a second clamping portion which are arranged opposite to each other, wherein the first clamping portion and the second clamping portion are both movably connected to a clamping arm, and a push rod is movably arranged on the clamping arm, and the first clamping portion and the second clamping portion can be moved closer to or farther from each other by moving the push rod; A transmission component is arranged between the push rod and the clamping arm. When the swinging direction of the clamping arm changes, the push rod can be driven by the transmission component to generate displacement so that the first clamping part and the second clamping part are closer to or farther from each other.

3. The flip clamping mechanism for hardware accessories according to claim 2, characterized in that: The transmission component includes a third slider slidably arranged on the clamping arm, the third slider can slide along the length direction of the clamping arm, the third slider is connected to the push rod, and a semicircular slide groove is opened on the side of the mounting plate facing away from the slide rail with the center of the rotating shaft as the center of the circle, the semicircular slide groove is adapted to the swing trajectory of the clamping arm, and a semicircular partition is used in the middle of the semicircular slide groove to divide the semicircular slide groove into an annular slideway composed of a first slide groove and a second slide groove connected end to end; The third slider is connected to a moving column, and the moving column is located in the annular slideway. During the reciprocating swing of the clamping arm, the moving column cyclically slides in the annular slideway, and during the sliding of the moving column from the first slide groove to the second slide groove or from the second slide groove to the first slide groove, the third slider can be driven to slide along the length direction of the clamping arm so that the push rod is displaced in the length direction of the clamping arm; The moving column is slidably connected to the third slider, and the moving column can slide along the sliding direction of the third slider. An elastic member is arranged between the moving column and the third slider, and one end of the elastic member is connected to the moving column, and the other end is connected to the third slider.

4. The flip-over clamping mechanism for hardware accessories according to claim 3, characterized in that: Guide members are provided at the two connecting parts of the first slide groove and the second slide groove, and the movable column can only move in one direction in the annular slideway through the two guide members.

5. The flip clamping mechanism for hardware accessories according to claim 2, characterized in that: A buffer pad is disposed on one side of the first clamping portion and the other side of the second clamping portion.

6. A cleaning machine, characterized in that: include: Bracket; The flip clamping mechanism according to any one of claims 1 to 5, wherein the mounting plate is fixedly connected to the bracket; A conveying mechanism installed on the bracket, the conveying mechanism includes a first conveying part and a second conveying part, the first conveying part and the second conveying part are respectively located on both sides of the flip clamping mechanism, when the clamping arm is in the first position, the clamping assembly can clamp the hardware accessories on the first conveying part, and when the clamping arm is in the second position, the clamping assembly can release the clamping of the hardware accessories and make them fall on the second conveying part; A cleaning mechanism is installed on the bracket, and the cleaning mechanism cleans the hardware accessories located on the first conveying part and the second conveying part.

7. A cleaning machine according to claim 6, characterized in that: The first conveying part is provided with a baffle, and the baffle is arranged perpendicular to the conveying direction of the first conveying part.

8. A cleaning machine according to claim 7, characterized in that: When the clamping arm is in a horizontal state, the length direction of the clamping arm is consistent with the length direction of the first conveying part and the second conveying part respectively; The first transmission part has a first input shaft. A first transmission component is arranged between the first transmission part and the clamping arm. Through the first transmission component, the first input shaft is driven to rotate only when the clamping arm swings from the first position to the second position to make the first transmission part operate.

9. A cleaning machine according to claim 8, characterized in that: The second transmission part has a second input shaft. A second transmission assembly is disposed between the second transmission part and the clamping arm. The second transmission assembly drives the second input shaft to rotate only when the clamping arm swings from the second position to the first position to enable the second transmission part to operate.

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