Batch transfer of fixtures and methods

Abstract

This invention provides a jig batch transfer device and method. The jig batch transfer device includes a base, a primary transfer mechanism, and a secondary transfer mechanism. The primary transfer mechanism includes a first clamping member and a first drive module. It sequentially feeds a first batch of m jigs into a first workstation area by repeatedly executing a clamping-advancing-releasing-retracting action cycle, or sequentially feeds m jigs out of a third workstation area by repeatedly executing a clamping-advancing-releasing-retracting action cycle. The secondary transfer mechanism includes a second clamping member and a second drive module. It simultaneously transfers 2m jigs to adjacent workstations by clamping m jigs in the first workstation area and m jigs in the second workstation area and translating them as a whole in the left-right direction, and then releases and resets them. The jig batch transfer method applies the jig batch transfer device. This invention enables efficient, synchronous, and collision-free transfer of multiple jigs between adjacent work areas or single-station feeding within a certain work area.

Description

Technical Field

[0001] This invention relates to the field of automated testing tooling equipment technology, specifically to a jig batch transfer device and method. Background Technology

[0002] In automated test production lines, products under test (such as printed circuit boards, semiconductor wafers, electronic functional modules, capacitors, etc.) usually need to be fixed on special fixtures (also known as jigs or clamps), such as the leakage current test of chip aluminum electrolytic capacitors.

[0003] In existing technologies, the inter-regional transfer of fixtures mainly employs the following methods: Option 1: Conveyor Belt / Roller Conveyor Solution. Fixtures are placed on a conveyor belt or roller conveyor line, and the continuous movement of the conveying medium transports the fixtures from one area to another. The disadvantages of this solution are: the conveyor belt moves continuously, making precise "stop-wait-restart" segmented control of the fixtures impossible during transport; as subsequent fixtures are continuously fed in, they are prone to impacting or pushing existing fixtures, leading to fixture misalignment, product slippage, or even damage. Furthermore, conveyor belt solutions typically require a large footprint, lack flexibility, and cannot meet the flexible switching requirements for multiple product types and small batches.

[0004] Option 2: Single Screw / Ball Screw Continuous Propulsion Solution. Some existing equipment uses a single screw or ball screw to drive a single push plate, causing it to move continuously in a straight line along a guide rail, thereby gradually pushing multiple fixtures from the front end to the rear station. The fundamental flaw of this solution is that screw or ball screw drive is essentially a continuous feed motion. The push plate is always in motion during the propulsion process and lacks the segmented control capability of "motion-stop-re-motion". Specifically, when the push plate drives the Nth fixture forward, the N+1th fixture is still following. Since there is no effective stationary interval between adjacent fixtures, the rear fixture will directly touch or even collide with the fixture already in place, causing fixture arrangement disorder and loss of positioning accuracy. Especially when there are a large number of fixtures, the cumulative error will be amplified step by step, seriously affecting the test yield and equipment reliability.

[0005] Option 3: One-by-one handling by robotic arm / multi-axis robot. This method uses an industrial robotic arm to sequentially grasp each fixture and place it into the target area. While this method offers high single-piece positioning accuracy, it suffers from the following problems: the robotic arm can typically only handle one fixture at a time; when there are N fixtures, at least 2N grasp-and-place operations are required, resulting in an extremely slow overall cycle time; the robotic arm itself and its control system have complex structures, leading to high procurement and maintenance costs; and the robotic arm requires a large workspace, making it unsuitable for compact production line layouts.

[0006] Option 4: Parallel translation with multiple actuators. This option uses multiple pneumatic or electric cylinders to drive multiple independent grippers to move synchronously. While this option can theoretically achieve synchronous motion, the number of actuators often corresponds one-to-one with the number of fixtures. As the number of fixtures increases, the number of actuators increases proportionally, resulting in a bulky overall structure, complex pneumatic or electrical control, and a sharp increase in cost. Furthermore, it is difficult to maintain the synchronization accuracy between the actuators over a long period.

[0007] In summary, there is currently no fixture transfer solution in the prior art that can achieve synchronous and batch transfer of multiple fixtures, single-station feeding of fixtures within a certain area, effectively avoid collisions between fixtures, and has a compact structure and is easy to maintain. Summary of the Invention

[0008] This invention aims to solve at least one of the technical problems existing in the prior art. Addressing the shortcomings of the prior art, this invention provides a jig batch transfer device that enables efficient, synchronous, and collision-free transfer of multiple jigs between adjacent work areas or single-station feeding within a certain work area within a limited space through a small number of driving movements. Simultaneously, it overcomes the problems of jig collisions and accumulated errors caused by continuous movement in existing continuous propulsion schemes. The technical solution adopted by this invention is: The present invention provides a jig batch transfer device, including a base and a first work station area, a second work station area and a third work station area arranged sequentially along the base. A guide rail assembly for receiving jigs is mounted on the base in the left-right direction. A guide part is provided at the bottom of the jig. The device also includes a primary transfer mechanism and a secondary transfer mechanism. The primary transfer mechanism includes: Two sets of first clamping components are respectively arranged in the first work station area and the third work station area. The first clamping component includes two first grippers arranged symmetrically in front and behind, and each first gripper has m first slots spaced apart along the left and right direction. The first drive module is used to drive a pair of first grippers to move synchronously in opposite directions in the front-back direction, so that any pair of first slots tightens or releases the guide portion, and drives the first clamping member to move in a stepping reciprocating motion in the left-right direction, so that m fixtures enter the first work station area one by one, or that m fixtures leave the third work station area one by one. The secondary transfer mechanism includes: The second clamping member is arranged between two adjacent workstations and is located outside the first clamping member. The second clamping member includes two second grippers arranged symmetrically in front and behind, and each second gripper has two second slots spaced 2m apart in the left and right direction. The second drive module is used to drive a pair of second grippers to move synchronously in opposite directions in the front-back direction, so that a pair of second slots clamp or release the guide portion, and drive the second clamping member to move linearly in the left-right direction, so that up to 2m fixtures can be transferred to adjacent workstations at the same time. Where m is a positive integer ≥ 2.

[0009] Furthermore, the first drive module includes: A first platform is located above the base, and the first clamping member is slidably connected to the first platform in the front-back direction; A first linear drive element is used to drive the first clamping member to move in the front-back direction; An intermittent reciprocating drive assembly is used to drive the first platform to perform step-by-step reciprocating linear motion in the left-right direction.

[0010] Furthermore, the intermittent reciprocating drive component includes: A waist-shaped hole is formed on the first platform; Gear motor; An eccentric block is mounted on the output shaft of the geared motor; The geared motor drives the eccentric block to perform circular motion. The eccentric block cooperates with the inner wall of the waist-shaped hole to convert the rotational motion of the geared motor into the reciprocating linear motion of the first platform in the left-right direction.

[0011] Furthermore, the first drive module also includes: The linkage is connected between the first platform in the first work station area and the first platform in the third work station area, and is driven by the same set of intermittent reciprocating drive components.

[0012] Furthermore, the second drive module includes: The second platform, the second clamping member is slidably connected to the second platform in the front-back direction; A feed drive assembly is arranged below the base and is used to drive the second stage to perform linear feed motion in the left-right direction.

[0013] Furthermore, the feed drive component includes: Servo motor; A ball screw mechanism is provided, wherein the servo motor is connected to the ball screw mechanism for transmission, and the output end of the ball screw mechanism is connected to the second platform.

[0014] Furthermore, it also includes infeed / outfeed components arranged at the left and / or right ends of the guide rail assembly, each of the infeed / outfeed components comprising: The third guide rail is arranged in the front-to-back direction. The third guide rail is provided with a third guide groove arranged in the front-to-back direction and a fourth guide groove arranged in the left-to-right direction. The fourth guide groove is perpendicularly connected to the third guide groove and can respectively accommodate the guide part. The third drive module and the chuck, the chuck being located below the third guide rail, the top of the chuck having a groove that mates with the guide portion; The third drive module includes a third linear drive element and a fourth linear drive element. The third linear drive element drives the jaw to move in the front-to-back direction, and the fourth linear drive element drives the jaw to move up and down in the vertical direction.

[0015] Furthermore, it also includes a push-in component disposed at the left end of the guide rail assembly, the push-in component comprising: A fifth linear drive element and a first lever, wherein the fifth linear drive element drives the first lever to reciprocate in the left-right direction to push the fixture into the first work station area.

[0016] Furthermore, it also includes an ejection component disposed at the right end of the guide rail assembly, the ejection component comprising: The system includes a sixth linear drive element, a seventh linear drive element, and a third lever. The seventh linear drive element drives the third lever to move up and down in the vertical direction, and the sixth linear drive element drives the third lever to move back and forth in the left and right direction to push the fixture out of the third work station area.

[0017] The present invention also provides a method for batch transfer of jigs, applied to the aforementioned batch transfer device, comprising the following steps: S100, Initial loading: The first batch of m fixtures are sequentially fed into the first workstation area; the first clamping member arranged in the first workstation area repeatedly performs the action cycle of clamping-advancing-releasing-retracting, and the first batch of m fixtures are progressively moved in the left and right directions until they are all located in the first workstation area. S200, First batch transfer: The first clamping member releases the first batch of m fixtures, the second clamping member clamps the first batch of m fixtures and moves them as a whole to the second workstation area in the left and right direction, and then releases and resets; S300, Secondary loading: While testing the first batch of m fixtures in the second workstation area, the second batch of m fixtures is sent into the first workstation area and positioned. S400, Secondary Batch Transfer: The second clamping member simultaneously clamps the second batch of m fixtures in the first workstation area and the first batch of m fixtures in the second workstation area, and moves as a whole in the left and right direction to simultaneously transfer the first batch of m fixtures to the third workstation area and the second batch of m fixtures to the second workstation area, and then releases and resets; S500, Unloading: The first clamping member arranged in the third work station area repeatedly performs a clamping-advancing-releasing-retracting action cycle on the m arriving fixtures until all m fixtures are removed, completing the unloading; S600, Cyclic Operation: Repeat steps S100 to 500 to achieve continuous transfer of the fixture between the three workstations.

[0018] Advantages of this invention: 1. The primary transfer mechanism is responsible for loading, positioning and unloading the fixtures one by one in a step-by-step manner within a single workstation area. The secondary transfer mechanism is responsible for batch synchronous transfer across workstation areas. This can avoid the problem of collision between fixtures caused by continuous movement in a single-level continuous propulsion scheme, and also overcome the slow cycle time of the single-piece handling scheme of the robot.

[0019] 2. The first clamping component adopts a tension clamping method with its slot opening facing outwards, while the second clamping component adopts a retractable clamping method with its slot opening facing inwards. The two clamping components will not interfere with each other on the vertical projection plane and horizontal movement trajectory, enabling them to work collaboratively in layers and areas within a compact space, thereby improving the space utilization of the equipment and providing favorable conditions for the design of compact production lines. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of some of the structural components of the present invention.

[0021] Figure 2 The first-person structural diagram of the jig.

[0022] Figure 3 This is a schematic diagram of the structure of the primary transfer mechanism.

[0023] Figure 4 This is a schematic diagram of an explosion of the primary transfer mechanism.

[0024] Figure 5 This is a first-view structural diagram of the secondary transfer mechanism.

[0025] Figure 6 This is a schematic diagram of the second-view structure of the secondary transfer mechanism.

[0026] Figure 7 This is a schematic diagram of the structural composition of the present invention.

[0027] Figure 8 This is a schematic diagram of the first-view structure of the feed-in and feed-out components.

[0028] Figure 9 This is a schematic diagram of the second-view structure of the feed-in and feed-out components.

[0029] Figure 10This is a schematic diagram of the structure of the push-in component.

[0030] Figure 11 A schematic diagram of the structural composition of the component being launched.

[0031] Figure 12 This is a second-view structural diagram of the jig. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0033] This invention provides a jig batch transfer device and method, aiming to solve the technical challenge of synchronous, efficient, and collision-free transfer of multiple jigs between adjacent workstations in automated testing production lines. This invention employs a two-stage clamping and transfer mechanism, namely a primary transfer mechanism and a secondary transfer mechanism, which are functionally decoupled, temporally connected, and spatially layered, thereby achieving a three-stage transfer process of "single-piece / small-batch step-by-step delivery + whole-batch synchronous jump transfer + single-piece / small-batch step-by-step delivery".

[0034] In this paper, for ease of description, the first horizontal direction is defined as the left-right direction (or X-direction or longitudinal transfer direction), the second horizontal direction is defined as the front-back direction (or Y-direction or clamping direction), and the vertical direction is defined as the up-down direction (or Z-direction). The main transfer trajectory of the fixture on the device proceeds from left to right along the first horizontal direction. However, it should be understood that the above directional definitions are only for descriptive convenience. In practical applications, the entire device can be rotated 90° or 180° as a whole, and the corresponding directional relationships will be adjusted accordingly, but the relative positional relationships and action logic between the components remain unchanged.

[0035] As attached Figure 1 and attached Figure 2 As shown, the jig batch transfer device of the present invention includes a base 10, a guide rail assembly mounted on the base 10, three working areas (i.e., a first work station area, a second work station area and a third work station area) arranged sequentially along the guide rail assembly, and a primary transfer mechanism and a secondary transfer mechanism installed on the base 10.

[0036] As is easily understood, the first work station area is located on the left side of the base 10 and is the work area to be tested, used to support the fixture 50 waiting to be tested; the second work station area is located in the middle of the base 10 and is the test work area, used to test the product under test on the fixture 50; the third work station area is located on the right side of the base 10 and is the work area to be completed, used to support the fixture 50 that has completed the test.

[0037] The guide rail assembly includes one first guide rail 110 and two second guide rails 120. The first guide rail 110 is located in the middle area of ​​the base 10, and the two second guide rails 120 are symmetrically arranged on the front and rear sides of the first guide rail 110, respectively. All three guide rails extend in a straight line in the left-right direction. A first guide groove 111 is formed on the first guide rail 110. The two second guide rails 120 are strip guide rails or flat guide rails, which cooperate with the first guide rail 110 to support the bottom of the fixture 50.

[0038] Below the first guide rail 110, a first bracket 112 is provided. The first bracket 112 is a block structure, and there are two of them, arranged symmetrically from left to right. The first guide rail 110 is supported above the base 10 by the first bracket 112, thereby forming a mezzanine space below the first guide rail 110. This mezzanine space provides sufficient space for the subsequent installation of the transmission components of the first drive module and the second drive module, while keeping the working surface above the guide rail assembly flat and open, which facilitates the docking of the testing equipment.

[0039] A second bracket 121 is provided below the two second guide rails 120, which supports the second guide rails 120 above the base 10. The second bracket 121 is an integral plate structure with good structural rigidity and load-bearing capacity.

[0040] When the fixture 50 is transferred between the three working areas, it is always mounted on the first guide rail 110 and two second guide rails 120. The guide part 510 in the middle of the bottom of the fixture 50 is embedded in the first guide groove 111 and can slide or roll smoothly along the first guide groove 111. The front and rear sides of the bottom of the fixture 50 are supported by two second guide rails 120 respectively.

[0041] Specifically, the guide portion 510 can be a roller, a rolling bearing, or a slider. In this embodiment, the guide portion 510 is preferably a rolling bearing, whose outer ring makes rolling contact with the inner wall surface of the first guide groove 111, resulting in a low coefficient of friction, good wear resistance, smooth movement, and high positioning accuracy.

[0042] As attached Figure 3 and attached Figure 4 As shown, the primary transfer mechanism includes two sets of first clamping members 20 and corresponding first drive modules. The first drive module includes a first platform 21 and a first linear drive element 22. One set of first clamping members 20 is arranged in a first workstation area, and the other set of first clamping members 20 is arranged in a third workstation area. Each set of first clamping members 20 includes two first grippers 20a. The two first grippers 20a in the same set are respectively mounted on the corresponding first platform 21 and can move synchronously in opposite directions, moving away or closer, in the front-back direction under the drive of the first linear drive element 22.

[0043] Each first gripper 20a has m first slots 20b spaced at intervals along the left-right direction, where m is a positive integer ≥ 2. In this embodiment, m is 3, meaning each first gripper 20a has three first slots 20b. The spacing between adjacent first slots 20b is designed according to the spacing between adjacent guide portions 510 on the fixture 50. The opening of the first slot 20b faces away from the first guide rail 110.

[0044] When the two first grippers 20a of the same group move away from each other in the front-back direction, the guide portions 510 on the front and back sides of the bottom of the fixture 50 respectively engage in the corresponding first slots 20b, forming a tensioned and fixed fixture 50. Under the action of tension, the fixture 50 is reliably positioned in both the left-right and front-back directions, and will not slip or wobble relative to the first grippers 20a. When the two first grippers 20a move closer to each other, the guide portions 510 disengage from the first slots 20b, the fixture 50 is released, and can move freely left and right on the guide rail assembly.

[0045] In some embodiments, the first linear drive element 22 can be a pneumatic gripper, a double-headed cylinder, or other actuator capable of outputting reverse thrust during reciprocating linear motion. In this embodiment, the first linear drive element 22 is preferably a double-headed cylinder, with its cylinder body fixed on the first platform 21 and its front and rear piston rods respectively fixedly connected to the two first grippers 20a of the same set of first clamping members 20. The double-headed cylinder has the advantages of compact structure, fast response speed, and low cost, and the movement of its two output ends has strict synchronicity and symmetry, so that the clamping force of the two first grippers 20a on the fixture 50 is equal.

[0046] The first platform 21 is slidably mounted on the base 10 in a left-right direction, specifically through a first slide rail assembly 40. The first slide rail assembly 40 includes at least one first slide rail and a matching first slider. The first slide rail is fixed to the base 10 in a left-right direction, and the first slider is fixedly connected to the first platform 21.

[0047] In this embodiment, in order to improve load-bearing capacity and motion stability, two first slide rail assemblies 40 are symmetrically arranged on the base 10, and each first platform 21 is connected to two first slide rail assemblies 40.

[0048] The first drive module also includes an intermittent reciprocating drive component for driving the first stage 21 to perform step-by-step reciprocating linear motion in the left-right direction.

[0049] The intermittent reciprocating drive assembly includes an oblong hole 23 formed on the first platform 21, a geared motor 24, and an eccentric block 25 mounted on the output shaft of the geared motor 24. The geared motor 24 is fixed to the lower surface of the base 10 or to a bracket within the equipment interlayer space, and its output shaft is arranged vertically upward or horizontally. The eccentric block 25 is a generally disc-shaped or cylindrical component, fixed to the output shaft of the geared motor 24, and eccentrically mounted to form a crank structure. The oblong hole 23 is formed at the bottom or side of the first platform 21, with its major axis arranged along the left-right direction and its minor axis arranged along the front-back direction, and its minor axis dimension matching the outer diameter of the eccentric block 25.

[0050] When the geared motor 24 drives the eccentric block 25 to rotate continuously in a circular motion, the rotational motion of the eccentric block 25 is constrained by the inner wall of the oblong hole 23, thus converting it into the reciprocating linear motion of the first platform 21 in the left-right direction. Each time the eccentric block 25 rotates once, the first platform 21 completes one reciprocating motion in the left-right direction, thereby controlling the single step distance of the first platform 21 and delivering the fixture to the right one workstation.

[0051] In a modified embodiment, the intermittent reciprocating drive assembly may also employ a crank structure commonly found in the prior art, such as a Geneva mechanism, a cam push rod mechanism, a crank-slider mechanism, or a connecting rod-rocker mechanism. As long as the continuous rotational motion of the rotary power source can be converted into a stepping reciprocating linear motion of the first platform 21 in the left-right direction, it should be considered as an equivalent technical solution to this embodiment.

[0052] In one embodiment, the first clamping member 20 arranged in the first workstation area and the first clamping member 20 arranged in the third workstation area can be connected by a linkage 26 and driven by the same set of intermittent reciprocating drive components. Specifically, a linkage 26 arranged in the left-right direction mechanically rigidly connects the two first platforms 21. When the geared motor 24 drives one of the first platforms 21 to reciprocate, the other first platform 21 moves synchronously. This linkage arrangement reduces the number of power sources, lowers the overall cost and control complexity, and ensures that the stepping delivery actions of the two workstation areas are strictly synchronized in timing. Alternatively, in another embodiment, the two first platforms 21 can also correspond to independent geared motors 24 and eccentric blocks 25 respectively to achieve independent motion control and cycle adjustment.

[0053] In addition, an extension platform 21a can be provided on the first platform 21, extending from the side of the first platform 21 toward the geared motor 24. An oblong hole 23 is provided on the extension platform 21a, so that the eccentric block 25 can be installed without avoiding the main body space of the first platform 21 and the movement trajectory area of ​​the first gripper 20a, which facilitates assembly, debugging and later maintenance.

[0054] In one embodiment, the extension stage 21a and the first platform 21 can be integrally formed or detachably connected by bolts.

[0055] As attached Figure 5 and attached Figure 6 As shown, the secondary transfer mechanism includes a set of second clamping members 30 and a corresponding second drive module. The second clamping members 30 are used to simultaneously clamp multiple fixtures 50 as a whole and transfer them in batches from one workstation area to the next adjacent workstation area. The second clamping members 30 include two second grippers 30a, which are symmetrically arranged on the front and rear sides of the guide rail assembly and located outside the first clamping member 20.

[0056] Each second gripper 30a has 2m second slots 30b spaced laterally. The openings of the second slots 30b face the first guide rail 110, opposite to the openings of the first slots 20b. The spacing between the second slots 30b is the same as that between the first slots 20b, and the width and depth of the second slots 30b are determined according to the external dimensions of the bottom guide portion 510 of the fixture 50. When two second grippers 30a approach each other in the front-rear direction, the guide portions 510 on the front and rear sides of the bottom of the fixture 50 respectively engage in the corresponding second slots 30b, forming a circumferential clamping and fixing of the fixture 50.

[0057] It should be noted that, since the second gripper 30a is located outside the first gripper 20a and the gripping action is in the opposite direction, when the first gripper 20a moves outward to tighten the grip, the second gripper 30a is in a released state, moving outward away from the fixture 50; when the second gripper 30a moves inward towards the fixture 50 to encircle and clamp, the first gripper 20a is in a released state, moving inward away from the fixture 50. Therefore, the two sets of grippers will not interfere with each other's movements or conflict in terms of space occupation at any time.

[0058] The second drive module includes a second platform 31 and a second linear drive element 32. In one embodiment, a second gripper 30a is mounted on the second platform 31. The second platform 31 includes a horizontal platform portion 31a and a vertical platform portion 31b. The horizontal platform portion 31a is used to support the second linear drive element 32 and the second gripper 30a; the vertical platform portion 31b passes through a pre-set through slot on the base 10 from top to bottom, extends downward to the space below the base 10, and connects to the output end of the second drive module.

[0059] By using a gantry or cantilever layout with "upper clamping and lower drive", the core transmission components of the second drive module can be hidden under the base 10, further freeing up the working space above the base 10.

[0060] The second platform 31 is slidably mounted on the base 10 in the left-right direction, specifically through the sliding connection of the first slide rail assembly 40. In the first slide rail assembly 40, each first slide rail is equipped with two first sliders, one of which is fixedly connected to the horizontal part 31a of the platform.

[0061] In some embodiments, the second linear drive element 32 can be a pneumatic gripper, a pneumatic cylinder, an electric cylinder, or an electric gripper. Specifically, there are two second linear drive elements 32, symmetrically mounted on the horizontal part 31a of the platform, with their output ends fixedly connected to two second grippers 30a respectively. When the two second linear drive elements 32 are activated, the two second grippers 30a move synchronously in opposite directions in the front-back direction, moving closer or further away to clamp or release the fixture 50. At the same time, the two second linear drive elements 32 can avoid the middle area of ​​the base 10, reserving installation space for the linkage rod 26 and avoiding structural interference.

[0062] The second drive module also includes a linear feed component for driving the second stage 31 to perform linear feed motion in the left-right direction. Figure 5 As shown, the linear feed assembly includes a servo motor 33 and a ball screw mechanism 34. The servo motor 33 is fixed to the lower surface of the base 10, and its output shaft is connected to the ball screw mechanism 34 via a coupling. The ball screw mechanism 34 is arranged horizontally in the left-right direction, and its two ends are rotatably supported on the bottom of the base 10 via bearing seats. The output end of the ball screw mechanism 34 is rigidly fixed to the vertical part 31b of the second platform 31. The ball screw mechanism 34 converts the rotational transmission of the servo motor 33 into linear transmission, thereby driving the vertical part 31b of the platform, the horizontal part 31a of the platform, and the second gripper 30a to translate as a whole in the left-right direction.

[0063] By utilizing the self-locking characteristic of the ball screw mechanism 34, when the second gripper 30a holds multiple fixtures 50 and moves them to the target position and stops, the screw 34 will not reverse due to external force, thereby ensuring the positional stability of the fixtures 50 during the transfer process and after they are in place.

[0064] In addition, the second drive module also includes a second slide rail assembly 35 for guiding and supporting the forward and backward movement of the second gripper 30a. The second slide rail assembly 35 includes a second slide rail and a matching second slider. The second slide rail is fixed to the top of the horizontal part 31a of the platform in the forward and backward direction, and the second slider is fixedly connected to the second gripper 30a. Preferably, two second slide rail assemblies 35 are arranged on the left and right sides of each second gripper 30a. The second slide rail assembly 35 and the ball screw mechanism 34 form a composite guide support for the horizontal part 31a of the platform, which improves the rigidity and anti-overturning ability of the second platform 31. Even if the second gripper 30a is holding a fully loaded 2m jigs 50, there will be no deflection in the forward and backward direction or warping in the vertical direction.

[0065] Regarding the non-interference configuration of the first platform 21 and the second platform 31 on their motion trajectories, it should be noted that: within the first workstation area, when the first platform 21 carries the first gripper 20a and moves progressively in the left-right direction, its left-right extreme positions are limited to the range of the first workstation area and will not enter the space above the second workstation area. Therefore, the first platform 21 and the second platform 31 located at the boundary between the first and second workstation areas do not interfere on the vertical projection plane; similarly, when the second platform 31 carries the second gripper 30a and multiple clamped fixtures... When 50 performs batch transfer movements from the first workstation area to the second workstation area, or from the second workstation area to the third workstation area, its starting position is located at the left boundary of the current workstation area, and its ending position is located at the right boundary of the current workstation area. During this movement, the horizontal projection area of ​​the second platform 31 will not overlap with the horizontal projection area of ​​the first platform 21 in the third workstation area. In the secondary transfer mechanism, only the second gripper 30a will cross the two adjacent workstation areas, thereby ensuring that the two sets of transfer mechanisms can operate safely and without conflict under any working cycle.

[0066] A height adjustment shim 36 can also be added between the second linear drive element 32 and the horizontal part 31a of the stage. The height adjustment shim 36 is a metal shim set or an adjustable wedge block, used to fine adjust the height position of the second gripper 30a in the vertical direction, ensuring that the center line of the second slot 30b is in the same horizontal plane as the center line of the bottom guide part 510 of the fixture 50, so as to avoid clamping failure or wear of the guide part 510 due to height misalignment.

[0067] like Figure 7 -Appendix Figure 9 As shown, in one embodiment, the jig batch transfer device is provided with feeding and feeding components 60 on both sides, which are used to realize the loading and unloading of jigs 50 on the side of the device.

[0068] The feed-in / feed-out assembly 60 includes a third guide rail 610, a third guide groove 620, a fourth guide groove 630, a third bracket 640, a third drive module, and a chuck 670.

[0069] The third guide rail 610 is arranged along the front-back direction at the left and / or right ends of the base 10 and is supported by the third bracket 640. Its mounting height matches that of the first guide rail 110 and the second guide rail 120 to ensure the height consistency of the fixture 50 during the transfer process.

[0070] The third guide groove 620 is formed on the third guide rail 610 in the front-to-back direction, and the fourth guide groove 630 is formed on the third guide rail 610 in the left-to-right direction. The fourth guide groove 630 is connected to the third guide groove 620. The number and position of the fourth guide grooves 630 correspond one-to-one with the number and position of the guide parts 510 at the bottom of the fixture 50. In particular, one of the fourth guide grooves 630 is on the same straight line as the first guide groove 111 on the first guide rail 110, thereby ensuring that when the fixture 50 moves laterally from the third guide rail 610 into the base 10, its bottom guide part 510 can slide into the first guide groove 111 without deviation from the fourth guide groove 630, achieving precise track alignment.

[0071] The third drive module includes a third linear drive element 650, a fixed block 651, and a fourth linear drive element 660. The third linear drive element 650 is a single-axis module, arranged on one side of the third guide rail 610, and its output end moves in the front-back direction and is mounted on the bottom of the fixed block 651. The fourth linear drive element 660 is a cylinder or electric push rod, mounted on the side surface of the fixed block 651, and its output end moves in the vertical direction and is connected to the chuck 670.

[0072] By using a vertical drive nested with a horizontal drive arrangement, the main body of the third linear drive element 650 can avoid the area directly below the third guide rail 610, while the pawl 670 can be precisely positioned below the third guide rail 610 and vertically aligned with the third guide groove 620 under the drive of the fourth linear drive element 660.

[0073] The top of the chuck 670 is provided with a groove 671, the shape of which matches the shape of the guide portion 510. During loading, driven by the fourth linear drive element 660, the chuck 670 rises vertically, and the groove 671 on its top grips the guide portion 510 located at the foremost end of the third guide rail 610 from below. Subsequently, the third linear drive element 650 drives the fixing block 651 and the chuck 670 to move forward in the front-back direction, thereby completely feeding the fixture 50 into the third guide rail 610 until the guide portion 510 at the lower middle position of the fixture 50 is aligned with the fourth guide groove 630 and the first guide groove 111. When unloading is required, the above actions are performed in reverse.

[0074] Preferably, in order to reduce the frictional resistance between the chuck 670 and the guide portion 510, two rolling elements 672 are arranged at a distance from front to back on the top of the chuck 670, and a groove 671 is formed between the two rolling elements 672 and the top surface of the chuck 670. The rolling elements 672 are specifically rollers or rolling bearings.

[0075] When the chuck 670 holds the guide part 510, the outer circumferential surface or outer side surface of the guide part 510 forms rolling contact with the two rolling elements 672, converting the original sliding friction into rolling friction. This not only reduces the load on the third drive module, but also reduces the wear on the outer surface of the guide part 510, and extends the service life of the fixture 50.

[0076] To prevent the fixture from overtraveling, the lateral feed-in / out assembly 60 also includes a first limit stop 680 and a second limit stop 690. The first limit stop 680 is fixed to the fixing block 651 or the output end of the third linear drive element 650 and can move back and forth with the chuck 670. The second limit stop 690 is fixed to the third bracket 640, the base 10, or the third guide rail 610 and remains stationary.

[0077] When the fixture 50 is laterally moved to the target position (i.e., the guide part 510 is aligned with the first guide groove 111), the first limit stop 680 and the second limit stop 690 abut against each other to form a mechanical limit, preventing the claw 670 from continuing to move forward. This effectively avoids overtravel transfer caused by program misjudgment, sensor drift, or inertial overshoot, thereby preventing misalignment and jamming between the guide part 510 and the fourth guide groove 630 or the first guide groove 111, and improving the safety and stability of equipment operation.

[0078] like Figure 7 Appendix Figure 10 and attached Figure 11 As shown, the jig batch transfer device also includes a push-in component 70 and an ejection component 80.

[0079] The push-in assembly 70 is used to push the jig 50 from the upstream conveyor line or the lateral feed-in / feed-out assembly 60 into the first station of the first station area in the left-right direction.

[0080] As attached Figure 10 As shown, the push-in assembly 70 specifically includes a fifth linear drive element 710, a first lateral extension plate 720, and a first lever 730. The fifth linear drive element 710 is fixed to the base 10 or the second bracket 121 on the front side and is located in the front area of ​​the guide rail assembly. Its output end moves in the left-right direction and is located in front of the second guide rail 120, avoiding the core working space above the base 10. The fifth linear drive element 710 drives the first lever 730 to reciprocate in the left-right direction through the first lateral extension plate 720. The first lever 730 is slender and rod-shaped or plate-shaped, and its free end extends backward from the upper front side of the guide rail assembly.

[0081] After the fixture 50 is laterally fed into the left end inlet of the guide rail assembly and stops, the fifth linear drive element 710 moves the fixture 50 to the right to the first station of the first work station area via the first lever 730. The guide part 510 on the fixture 50 enters the first guide groove 111 along the fourth guide groove 630, and the fixture 50 slides on the guide rail assembly until the guide part 510 of the fixture 50 is aligned with the first first slot 20b on the first gripper 20a and the first second slot 30b on the second gripper 30a in the first work station area. Then the first lever 730 is reset, waiting for the next fixture 50 to be fed in.

[0082] The ejection assembly 80 is used to eject the fixture 50 located at the rightmost station of the third work area to the right of the guide rail assembly and transfer it to the downstream conveyor line or the lateral feed-in / feed-out assembly 60 on the right.

[0083] As attached Figure 11 As shown, the launch assembly 80 specifically includes a sixth linear drive element 810, a second lateral extension plate 820, a second lever 830, a seventh linear drive element 840, a third lever 850, and a third slide rail assembly 860. The sixth linear drive element 810 is a single-axis module, fixed to the base 10 or the rear second bracket 121 and located in the rear region of the guide rail assembly. Its output end moves left and right and is located behind the rear second guide rail 120. The second lateral extension plate 820 is driven by the sixth linear drive element 810 to reciprocate left and right, extending from the rear of the guide rail assembly to above it. The second lever 830 is located above the guide rail assembly and vertically fixed to the second lateral extension plate 820. The third lever 850 is slidably connected to the second lever 830 via the third slide rail assembly 860. The seventh linear drive element 840 is a cylinder that drives the third lever 850 to move up and down vertically.

[0084] The structure and connection method of the third slide rail assembly 860 are the same as those of the first slide rail assembly 40 or the second slide rail assembly 35.

[0085] In a complete push-out action: First, the sixth linear drive element 810 drives the second lateral extension plate 820 to move to the left, so that the horizontal projection position of the third lever 850 is located to the left of the target fixture 50 to be pushed out; second, the seventh linear drive element 840 drives the third lever 850 to descend, so that its lower end face is lower than the upper surface of the fixture 50 and higher than the fixture body; then, the sixth linear drive element 810 drives the second lateral extension plate 820 to move to the right, and the third lever 850 pushes the fixture 50 to slide to the right out of the guide rail assembly and into the downstream station, that is, the guide part 510 of the fixture 50 enters the fourth guide groove 630 in the right-side feed-in / feed-out assembly 60; finally, the seventh linear drive element 840 drives the third lever 850 to rise and reset, and the sixth linear drive element 810 drives the second lateral extension plate 820 to retract to the left, waiting for the next push-out action.

[0086] By arranging the drive element bodies of the push-in component 70 and the push-out component 80 on the front and rear sides of the guide rail assembly instead of directly above it, the area above the base 10 is kept open, which facilitates the arrangement of other components and greatly improves the space utilization and work integration of the whole machine.

[0087] As attached Figure 12 As shown, the fixture 50 has multiple guide sections 510 at its bottom and several product placement slots 520 at its top. The product placement slots 520 are spaced apart in the left-right direction, and their shapes match the shape of the product being tested, such as rectangular slots, circular slots, or irregularly shaped positioning slots. In this embodiment, the product being tested is a capacitor element, and the product placement slot 520 is a rectangular groove matching the outer contour of the capacitor. A silicone pad or sponge pad can also be embedded in the slot to provide cushioning protection for the product during clamping and transfer. The guide sections 510 are spaced apart in the left-right direction at the bottom of the fixture 50, and the number can be three or more. The guide sections 510 are rollers, rolling bearings, or sliders. In this embodiment, three guide sections 510 are preferably arranged near the left and right ends and the middle of the bottom of the fixture 50. The guide sections 510 are selected as deep groove ball bearings, whose outer rings roll in contact with the inner wall of the first guide groove 111 or with the rolling element 671.

[0088] The present invention also provides a method for batch transfer of jigs. In one embodiment, it is assumed that m=3, that is, each first gripper 20a is provided with three first slots 20b, and each second gripper 30a is provided with six second slots 30b.

[0089] Step S100: Initial loading; The first batch of m fixtures 50 are sequentially fed into the first workstation area; The first clamping member arranged in the first workstation area repeatedly performs the clamping-advancing-releasing-retracting action cycle, and the first batch of m fixtures 50 are progressively moved in the left and right direction until they are all located in the first workstation area.

[0090] First, the first batch of three jigs 50 are sequentially fed from back to front into the left side of the guide rail assembly of the base 10 via the lateral feed-in / feed-out assembly 60. Then, the first batch of three jigs 50 are sequentially fed from left to right into the first workstation area on the left side of the base 10 by the push-in assembly 70. During this process, the two first grippers 20a located on the front and rear sides of the first workstation area move away from each other under the drive of the first linear drive element 22, locking the guide portions 510 on the front and rear sides of the bottom of the first jig 50 into the corresponding first slots 20b to form a tension and fixation. Subsequently, the reduction motor 24 drives the eccentric block 25 to rotate half a revolution, causing the first platform 21 and the first grippers 20a to move one workstation to the right, delivering the first jig 50 to the second first slot 20b in the first workstation area. Then, the first linear drive element 22 drives the two first grippers 20a to move closer to each other, releasing the first jig 50. Subsequently, the reduction motor 24 continues to drive the eccentric block 25 to rotate for the remaining half revolution, causing the first platform 21 to retract to its initial position. The above-mentioned "clamping-advancing-releasing-retracting" action is repeated cyclically until all three jigs 50 in the first batch are sequentially advanced and placed in the three consecutive first slots 20b located in the first workstation area. At this time, the three jigs 50 correspond one-to-one with the three first slots 20b on the first gripper 20a.

[0091] Step S200: First batch transfer; the first clamping member releases the first batch of m fixtures 50, the second clamping member clamps the first batch of m fixtures 50 and moves them as a whole to the second work station area in the left and right direction, and then releases and resets.

[0092] The first linear drive element 22 in the first workstation area drives the two first grippers 20a to move closer together, releasing the tension and fixation on the first batch of three fixtures 50. Simultaneously, the second linear drive element 32 drives the second grippers 30a to move closer together, causing the guide portions 510 on the front and rear sides of the bottom of the three fixtures 50 to be correspondingly engaged into the three second slots 30b on the second grippers 30a, forming a circumferential clamping. Subsequently, the servo motor 33, through the ball screw mechanism 34, drives the second platform 31 and the second grippers 30a to move to the right as a whole, synchronously transferring the first batch of three fixtures 50 from the first workstation area to the second workstation area. After the transfer, the second linear drive element 32 drives the second grippers 30a to move away from each other, releasing the three fixtures 50, allowing them to rest in the second workstation area for testing. Subsequently, the servo motor 33, through the ball screw mechanism 34, drives the second platform 31 and the second grippers 30a to reverse and reset to their initial positions.

[0093] Step S300: Secondary loading; while testing the first batch of m fixtures 50 in the second workstation area, the second batch of m fixtures 50 are sent into the first workstation area and positioned.

[0094] While the first batch of three fixtures 50 are being tested in the second workstation area, the first clamping member 20 in the first workstation area repeats the action cycle in step S100, progressively transferring the second batch of three fixtures 50 into the three first slots 20b in the first workstation area. At this time, the first workstation area carries the second batch of three fixtures 50, and the second workstation area carries the first batch of three fixtures 50. Since the slot spacing of the second slots 30b on the second gripper 30a is the same as the slot spacing of the first slots 20b on the first gripper 20a, the relative positional relationship between the second batch of three fixtures 50 and the first batch of three fixtures 50 in the first horizontal direction satisfies the spacing arrangement of the six second slots 30b on the second gripper 30a.

[0095] Step S400: Secondary batch transfer; The second clamping member simultaneously clamps the second batch of m fixtures 50 in the first workstation area and the first batch of m fixtures 50 in the second workstation area, and moves them horizontally in the left and right direction to simultaneously transfer the first batch of m fixtures 50 to the third workstation area and the second batch of m fixtures 50 to the second workstation area, and then releases and resets.

[0096] After the first batch of fixtures 50 completes its testing in the second workstation area and the second batch of fixtures 50 is in place in the first workstation area, the second linear drive element 32 drives the second grippers 30a to move closer together. Simultaneously, the guide portions 510 of the three fixtures 50 from the second batch in the first workstation area and the three fixtures 50 from the first batch in the second workstation area are engaged into the six second slots 30b on the second grippers 30a, forming a synchronous, encircling clamping of the six fixtures 50. Subsequently, the servo motor 33 drives the second platform 31 and the second grippers 30a to move to the right as a whole via the ball screw mechanism 34. During this process, the three fixtures 50 from the first batch in the second workstation area are synchronously transferred to the third workstation area, while the three fixtures 50 from the second batch in the first workstation area are synchronously transferred to the second workstation area. After being transferred into place, the second linear drive element 32 drives the second grippers 30a to move away from each other, releasing the six fixtures 50. Subsequently, the servo motor 33 drives the second platform 31 and the second gripper 30a to reverse and reset via the ball screw mechanism 34. At this time, the second workstation area carries the second batch of three jigs 50 to be tested, and the third workstation area carries the first batch of three jigs 50 that have completed testing.

[0097] Step S500: Unloading; The first clamping member arranged in the third work station area repeatedly performs a clamping-advancing-releasing-retracting action cycle on the arriving m fixtures 50 until all m fixtures are removed, completing the unloading.

[0098] Two first grippers 20a, positioned at the front and rear of the third workstation area, driven by a double-headed cylinder, repeatedly perform a "clamping-advancing-releasing-retracting" cycle on the fixtures 50 arriving at the third workstation area. Specifically, the first grippers 20 in the third workstation area clamp the first batch of three completed-test fixtures 50 sequentially from right to left and advance them to the right. After all three completed-test fixtures 50 in the first batch have been delivered, the second batch of three completed-test fixtures 50 are transferred from the second workstation area to the third workstation area. The first grippers 20 in the third workstation area continue to advance to the right, and the fixtures 50 are gradually moved to the rightmost end of the guide rail assembly, completing the unloading. The third lever 850 of the ejector assembly 80 descends and sequentially pushes the rightmost fixture 50 to the right, ejecting it from the guide rail assembly and transferring it to the lateral feed-in / feed-out assembly 60 on the right or the downstream conveyor line.

[0099] Step S600: Cyclic operation; Repeat steps S100 to 500 to achieve continuous transfer of fixture 50 between the three workstations. During each batch transfer, the second clamping member 30 simultaneously carries and transfers six fixtures 50, and always maintains that three completed test fixtures 50 are moved out of the second workstation and three fixtures 50 to be tested are moved into the second workstation, thereby forming a stable testing cycle in the second workstation.

[0100] In the aforementioned cyclical operation, the loading action in the first workstation, the testing action in the second workstation, the unloading action in the third workstation, and the batch transfer action of the secondary transfer mechanism overlap and are executed in parallel. For example, when the second workstation is testing the second batch of fixtures 50, the first workstation can simultaneously load the third batch of fixtures 50, and the third workstation can simultaneously unload the first batch of fixtures 50. This parallel operation mode maximizes the utilization of the operation time window of each workstation, significantly improving the cycle time efficiency of the entire machine.

[0101] In one modified embodiment, the jig batch transfer device of the present invention can be expanded to a configuration of four, six, or more workstations according to actual production line needs. For example, an intermediate testing workstation (e.g., an aging testing workstation) can be added between the first and second workstation areas, and a secondary transfer mechanism can be added accordingly. In this case, the first secondary transfer mechanism is responsible for batch transferring the jigs 50 from the first workstation area to the intermediate testing workstation, and the second secondary transfer mechanism is responsible for batch transferring the jigs 50 from the intermediate testing workstation to the third workstation area. The operation logic and timing control of each transfer mechanism are similar to those in the three-workstation implementation, requiring only corresponding adjustments to the stroke parameters and control program of the servo motor 33.

[0102] In another modified embodiment, the form of the bottom guide portion 510 of the fixture 50 can be flexibly selected according to the actual working conditions. For example, for a heavy fixture 50, the guide portion 510 can be a linear bearing slider with high load-bearing capacity; for applications requiring frequent reversals, the guide portion 510 can be a swivel caster or a bullseye wheel. Regardless of the specific form of the guide portion 510, as long as it can form a guiding engagement with the guide groove on the guide rail assembly and can be reliably clamped by the first clamping member 20 and the second clamping member 30, it should be considered an equivalent technical solution to this embodiment.

[0103] In summary, the jig batch transfer device and method provided by this invention achieves efficient, synchronous, and collision-free transfer of multiple jigs between adjacent workstations through the coordinated operation of primary and secondary transfer mechanisms, spatial layering with opposite clamping logic, and the organic combination of intermittent reciprocating drive and linear feed. This device is compact, reliable, and has good scalability and adaptability, effectively meeting the urgent needs of automated testing production lines for high-cycle, high-precision, and high-stability jig transfer.

[0104] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A jig batch transfer device, comprising a base (10) and a first work station area, a second work station area, and a third work station area arranged sequentially along the base (10), wherein a guide rail assembly for receiving jigs (50) is mounted on the base in a left-right direction, and a guide portion (510) is provided at the bottom of the jig (50), characterized in that, It also includes primary transfer agencies and secondary transfer agencies; The primary transfer mechanism includes: Two sets of first clamping components (20) are respectively arranged in the first work station area and the third work station area. The first clamping component (20) includes two first grippers (20a) arranged symmetrically in front and behind. Each first gripper (20a) has m first slots (20b) spaced apart along the left and right direction. The first drive module is used to drive a pair of first grippers (20a) to move synchronously in opposite directions in the front-back direction, so that any pair of first slots (20b) tightens or releases the guide (510), and drives the first clamping member to move in a stepping reciprocating motion in the left-right direction, so that m fixtures (50) enter the first work station area one by one, or so that m fixtures (50) leave the third work station area one by one. The secondary transfer mechanism includes: The second clamping member (30) is arranged between two adjacent workstations and located outside the first clamping member. The second clamping member (30) includes two second grippers (30a) arranged symmetrically in front and behind. Each second gripper (30a) has two second slots (30b) spaced 2m apart in the left and right direction. The second drive module is used to drive a pair of second grippers (30a) to move synchronously in opposite directions in the front-back direction, so that a pair of second slots (30b) clamp or release the guide (510), and drive the second clamping member to move linearly in the left-right direction, so that up to 2m fixtures (50) can be transferred to adjacent workstations at the same time. Where m is a positive integer ≥ 2.

2. The tool batch transfer apparatus of claim 1, wherein The first drive module includes: The first platform (21) is located above the base (10), and the first clamping member is slidably connected to the first platform (21) in the front-back direction; The first linear drive element (22) is used to drive the first clamping member to move in the front-back direction; An intermittent reciprocating drive assembly is used to drive the first stage (21) to perform step-like reciprocating linear motion in the left and right directions.

3. The tool batch transfer apparatus of claim 1, wherein The intermittent reciprocating drive component includes: A waist-shaped hole (23) is provided on the first platform (21); Gear motor (24); An eccentric block (25) is mounted on the output shaft of the geared motor (24); The geared motor (24) drives the eccentric block (25) to make circular motion. The eccentric block (25) cooperates with the inner wall surface of the waist-shaped hole (23) to convert the rotational motion of the geared motor (24) into the reciprocating linear motion of the first platform (21) in the left and right directions.

4. The gripper batch transfer device of claim 2 or 3, wherein, The first drive module further includes: The linkage rod (26) is connected between the first platform (21) in the first work station area and the first platform (21) arranged in the third work station area, and is driven by the same set of intermittent reciprocating drive components.

5. The jig batch transfer device as described in claim 1, characterized in that, The second drive module includes: The second platform (31) is slidably connected to the second platform (31) in the front-back direction; The feed drive assembly is arranged below the base (10) and is used to drive the second stage (31) to make linear feed motion in the left and right directions.

6. The tool batch transfer apparatus of claim 5, wherein, The feed drive component includes: Servo motor (33); The ball screw mechanism (34) is connected to the servo motor (33) via a transmission connection, and the output end of the ball screw mechanism (34) is connected to the second platform (31).

7. The jig batch transfer device as described in claim 1, characterized in that, It also includes infeed / outfeed components (60) arranged at the left and / or right ends of the guide rail assembly, each of the infeed / outfeed components (60) comprising: The third guide rail (610) is arranged in the front-back direction. The third guide rail (610) is provided with a third guide groove (620) arranged in the front-back direction and a fourth guide groove (630) arranged in the left-right direction. The fourth guide groove (640) is perpendicularly connected to the third guide groove (620) and can respectively accommodate the guide part (510). The third drive module and the claw (670) are located below the third guide rail (610). The top of the claw (670) is provided with a groove (671) that cooperates with the guide part (510). The third drive module includes a third linear drive element (650) and a fourth linear drive element (660). The third linear drive element (650) drives the jaw (670) to move in the front-back direction, and the fourth linear drive element (660) drives the jaw (670) to move up and down in the vertical direction.

8. The tool batch transfer apparatus of claim 1, wherein It also includes a push-in component (70) disposed at the left end of the guide rail assembly, the push-in component (70) comprising: The fifth linear drive element (710) and the first lever (730) drive the first lever (730) to reciprocate in the left and right direction to push the fixture (50) into the first work station area.

9. The jig batch transfer device as described in claim 1, characterized in that, It also includes an ejection assembly (80) disposed at the right end of the guide rail assembly, the ejection assembly (80) comprising: The sixth linear drive element (810), the seventh linear drive element (840), and the third lever (860) are provided. The seventh linear drive element (840) drives the third lever (860) to move up and down in the vertical direction, and the sixth linear drive element (810) drives the third lever (860) to move back and forth in the left and right direction, so as to push the fixture (50) out of the third work station area.

10. A method for batch transfer of jigs, applied to the batch transfer device for jigs as described in claim 1, characterized in that, Includes the following steps: S100, Initial loading: The first batch of m fixtures (50) are sequentially fed into the first work station area; the first clamping member arranged in the first work station area repeatedly performs the action cycle of clamping-advancing-releasing-retracting, and the first batch of m fixtures (50) are progressively moved in the left and right directions until they are all located in the first work station area. S200, First batch transfer: The first clamping member releases the first batch of m fixtures (50), the second clamping member clamps the first batch of m fixtures (50) and moves them as a whole to the second work station area in the left and right direction, and then releases and resets; S300, Secondary loading: While testing the first batch of m fixtures (50) in the second work station area, the second batch of m fixtures (50) are sent into the first work station area and placed in place; S400, Secondary Batch Transfer: The second clamping member simultaneously clamps the second batch of m fixtures (50) in the first workstation area and the first batch of m fixtures (50) in the second workstation area, and moves them horizontally in the left and right directions to transfer the first batch of m fixtures (50) to the third workstation area and the second batch of m fixtures (50) to the second workstation area, and then releases and resets them; S500, Unloading: The first clamping member arranged in the third work station area repeatedly performs a clamping-advancing-releasing-retracting action cycle on the arriving m fixtures (50) until all m fixtures are removed, and unloading is completed; S600, Cyclic operation: Repeat steps S100 to 500 to achieve continuous flow of the fixture (50) between the three workstations.

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