A double-layered puller cycle production line

Abstract

The present application relates to a kind of double-layered pulling fork circulation production line.The double-layered pulling fork circulation production line includes guide rail support, the upper surface of guide rail support is equipped with first guide rail, a plurality of fixtures are slidably arranged on first guide rail, pulling fork module is arranged on guide rail support, and pulling fork module is used to drive fixture to move equidistantly;First guide rail is further equipped with secondary pulling fork module, and secondary pulling fork module is used to move again after pulling fork module completes movement, and adjust the position of part of fixture;Secondary pulling fork module includes secondary pulling fork drive mechanism and tongue down-pressing mechanism, secondary drive unit drives tongue down-pressing mechanism to translate and slide, and tongue down-pressing mechanism is equipped with tongue, and fixture is equipped with tongue positioning wheel matched with tongue.The double-layered pulling fork circulation production line has the advantages of flexible configuration, high transmission efficiency and small layout area.

Description

TECHNICAL FIELD

[0001] The present application relates to battery production equipment, in particular to a double-layered puller cycle production line. BACKGROUND

[0002] In the processing of batteries, the batteries are usually transferred between various processing stations through a transmission line. The existing transmission line generally slides a jig on a guide rail, and then moves the jig synchronously by inserting a pin into the jig through a puller device, so that the jig is transferred from one station to the next station. In order to synchronously and efficiently transfer the jig, the interval of the pin on the puller is equal, and the position of the jig is adjusted after the puller moves the jig and then moves the next jig.

[0003] However, if the sizes of various processing equipment on the same transmission line are different or one processing equipment has two processing stations, only the largest station interval can be used as the equal-interval puller. If the largest station interval is too large, the transmission time between stations will be longer, and there will be defects of low transmission efficiency and large layout area. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a double-layered puller cycle production line, which increases a secondary puller module on the basis of a conventional puller cycle line, so that the long-side jig of the cycle line can be moved and switched again according to different station intervals after being switched in place as a whole. The double-layered puller cycle production line has the advantages of flexible configuration, high transmission efficiency, and small layout area.

[0005] The present application is realized by the following scheme:

[0006] A double-layered puller cycle production line includes a guide rail support, a first guide rail is arranged on the upper surface of the guide rail support, a plurality of jigs are slidably arranged on the first guide rail, a puller module is arranged on the guide rail support, and the puller module is used to drive the jigs to move at equal intervals.

[0007] A secondary puller module is further arranged on one side of the first guide rail, and the secondary puller module is used to move and adjust the positions of part of the jigs again after the movement of the puller module is completed.

[0008] The secondary pulling fork module comprises a secondary pulling fork driving mechanism and an insertion tongue pressing mechanism, the secondary pulling fork driving mechanism comprises a gantry, a third guide rail and a secondary driving unit, the gantry is arranged on the inner side of the guide rail support and is parallel to the first guide rail, the third guide rail is arranged on the gantry and is parallel to the first guide rail, the insertion tongue pressing mechanism is arranged above the jig and is slidably connected to the third guide rail, the secondary driving unit drives the insertion tongue pressing mechanism to translate and slide on the third guide rail, the insertion tongue pressing mechanism is provided with an insertion tongue, and the jig is provided with an insertion tongue positioning wheel matched with the insertion tongue.

[0009] Further, the insertion tongue pressing mechanism comprises a translation sliding plate, a fourth guide rail and a pressing sliding frame, and a pressing cylinder, the translation sliding plate is slidably arranged on the third guide rail, the fourth guide rail is arranged on the translation sliding plate in the vertical direction, the pressing sliding frame is slidably arranged on the fourth guide rail, the pressing cylinder is fixed on the pressing sliding frame, the power output end of the pressing cylinder is fixedly connected with the translation sliding plate, and the insertion tongue is fixedly connected to the bottom surface of the pressing sliding frame.

[0010] Further, the pressing sliding frame is provided with an upper buffer limiting block, and the translation sliding plate is provided with a lower buffer limiting block.

[0011] Further, the pulling fork module comprises a pulling fork and a second guide rail, the second guide rail is fixedly arranged on the outer side of the guide rail support, the pulling fork is slidably arranged on the second guide rail through a pulling fork connecting mechanism, the pulling fork is provided with a plurality of insertion pins, the jig is provided with a positioning hole A matched with the insertion pins, the inner side of the guide rail support is provided with a pulling fork driving mechanism fixedly connected with the pulling fork, and the bottom edge of the pulling fork is further provided with a plurality of pulling fork jacking mechanisms.

[0012] Further, the pulling fork is provided with a jig pitch changing mechanism at a position where the jig reaches after being moved by the secondary pulling fork module, the jig pitch changing mechanism comprises a fixed plate fixedly connected with the pulling fork, the fixed plate is provided with a fifth guide rail, a pitch changing insertion pin is slidably arranged on the fifth guide rail, the fixed plate is provided with a pitch changing cylinder fixedly connected thereto, and the output end of the pitch changing cylinder is fixedly connected with the pitch changing insertion pin.

[0013] Further, the pulling fork driving mechanism comprises a pulling fork translation motor, a screw bearing seat, a ball screw, a sixth guide rail and a sliding block, the pulling fork translation motor is fixed to one end of the screw bearing seat, the ball screw passes through the bearing on the screw bearing seat and is fixedly connected with the output end of the pulling fork translation motor, the sixth guide rail is arranged on the bottom of the screw bearing seat and is parallel to the ball screw, and the sliding block is slidably arranged on the sixth guide rail.

[0014] The sliding block is provided with a threaded hole matched with the ball screw, the ball screw passes through the threaded hole, and the sliding block is fixedly connected with the puller through the puller connecting mechanism.

[0015] Further, the puller connecting mechanism comprises a connecting plate and an eighth guide rail, one side of the connecting plate is fixedly connected with the sliding block or is slidingly connected with the second guide rail, the eighth guide rail is vertically arranged on the side of the connecting plate close to the puller, the puller is slidingly arranged on the eighth guide rail through a sliding table, and the connecting plate is further fixedly connected with a protruding block, and the puller is provided with a recess matched with the protruding block, and the protruding block is embedded in the recess.

[0016] Further, the puller lifting mechanism comprises a fixing base, a lifting cylinder, a seventh guide rail and a lifting seat, the lifting cylinder is fixedly connected with the fixing base, the seventh guide rail is vertically arranged on the side surface of the fixing base, the lifting seat is slidingly arranged on the seventh guide rail, and the output end of the lifting cylinder is vertically fixedly connected with the lifting seat, and the top of the lifting seat is provided with a guide wheel abutting against the bottom edge of the puller.

[0017] Further, the jig positioning mechanism is arranged on one side of the jig, the jig positioning mechanism comprises a base, a positioning cylinder and a positioning pulley, the positioning cylinder is fixedly connected with the base, the direction of the output end of the positioning cylinder is perpendicular to the moving direction of the jig, the output end of the positioning cylinder is fixedly connected with the positioning pulley, and the jig is provided with a positioning groove B, and the positioning pulley can abut against the positioning groove B under the drive of the positioning cylinder.

[0018] Further, the guide rail support, the first guide rail, the puller module and the secondary puller module comprise two groups arranged in parallel, the two ends of the guide rail support are connected through a jig guide rail switching mechanism respectively, the guide rail support and the jig guide rail switching mechanism form a rectangular transmission line, and the jig is switched between the first guide rails on the two sides through the jig guide rail switching mechanism.

[0019] The double-layer puller circulation production line has the following advantages:

[0020] 1. The jig moves a fixed distance under the drive of the puller module, then is pulled again by the secondary puller module arranged on one side, some jigs after moving at equal intervals continue to move a distance to reach a specified position under the secondary pulling, and the double-layer puller circulation production line has the advantages of flexible configuration, high transmission efficiency and small layout area.

[0021] 2、In order to adapt to the problem that the position of the secondary pulling fork cannot be fixed after the type is changed, the jig distance changing mechanism is arranged on the pulling fork to adapt to the position change of the jig. The distance changing bolt is slidably arranged on the fifth guide rail, and the position of the distance changing bolt is controlled through the distance changing cylinder. The position of the secondary pulling fork is determined according to the processing station, the jig distance changing mechanism adjusts the position of the distance changing bolt to correspond to the position of the secondary pulling fork, so that the distance changing bolt is inserted into the positioning hole of the jig during the primary pulling, and the processing position can be changed to adapt to different jig models, and the method has the advantages of high compatibility.

[0022] In order to better understand and implement, the present application is described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0024] Figure 2 It is a perspective view of a plug depressing mechanism of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0025] Figure 3 It is a perspective view of a pulling fork module of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0026] Figure 4 It is a relationship diagram of a jig distance changing mechanism of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0027] Figure 5 It is a perspective view of a jig distance changing mechanism of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0028] Figure 6 It is a perspective view of a pulling fork driving mechanism of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0029] Figure 7 It is a perspective view of a pulling fork jacking mechanism of a double-layer pulling fork circulation production line according to an embodiment of the present application;

[0030] Figure 8 It is a perspective view of a jig positioning mechanism of a double-layer pulling fork circulation production line according to an embodiment of the present application.

[0031] Reference signs: jig 100, plug positioning wheel 110, positioning hole 100A, positioning groove 100B;

[0032] Guide rail support 200, first guide rail 210;

[0033] The fork module 300, the fork 310, the bolt 311, the second guide rail 320, the fork driving mechanism 330, the fork translation motor 331, the ball screw bearing seat 332, the ball screw 333, the sixth guide rail 334, the sliding block 335, the fork jacking mechanism 340, the fixed seat 341, the jacking cylinder 342, the seventh guide rail 343, the jacking seat 344, the guide wheel 345, the fork connecting mechanism 350, the connecting plate 351, the eighth guide rail 352, the sliding table 353, the protruding block 354;

[0034] The secondary fork module 400, the secondary fork driving mechanism 410, the gantry 411, the third guide rail 412, the secondary driving unit 413, the plug pressing mechanism 420, the translation sliding plate 421, the fourth guide rail 422, the pressing sliding frame 423, the pressing cylinder 424, the plug 425, the upper buffer limit block 426, and the lower buffer limit block 427.

[0035] The jig variable distance mechanism 500, the fixed plate 510, the fifth guide rail 520, the variable distance bolt 530, and the variable distance cylinder 540.

[0036] The jig positioning mechanism 600, the base 610, the positioning cylinder 620, and the positioning pulley 630.

[0037] The jig guide rail switching mechanism 700. DETAILED DESCRIPTION

[0038] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0040] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element.

[0041] For the technical problems in the background art, the present application provides a double-layer fork circulation production line, which comprises a first fork module, a second fork module, a jig variable distance mechanism, a jig positioning mechanism, and a jig guide rail switching mechanism. Figure 1As shown, including guide rail support 200, the upper surface of the first guide rail 210 is provided, the first guide rail 210 can be slidably provided with a plurality of fixtures 100, the guide rail support 200 is provided with a fork module 300, the fork module 300 is used to drive the fixture 100 to move at equal intervals. One side of the first guide rail 210 is also provided with a secondary fork module 400, the secondary fork module 400 is used to move the position of part of the fixture 100 again after the fork module 300 completes the movement.

[0042] As shown in Figure 1 and Figure 2 The secondary fork module 400 includes a secondary fork driving mechanism 410 and a plug down mechanism 420, the secondary fork driving mechanism 410 includes a gantry 411, a third guide rail 412 and a secondary driving unit 413, the gantry 411 is parallel to the first guide rail 210 and is arranged on the inner side of the guide rail support 200, the third guide rail 412 is parallel to the first guide rail 210 and is arranged on the gantry 411, the plug down mechanism 420 is arranged above the fixture 100 and is slidably connected to the third guide rail 412, the secondary driving unit 413 drives the plug down mechanism 420 to slide on the third guide rail 412, the plug down mechanism 420 is provided with a plug 425, and the fixture 100 is provided with a plug positioning wheel 110 matched with the plug 425.

[0043] The double-layer fork circulation production line described in the embodiment of the application, the fixture 100 is slidably arranged on the first guide rail 210 of the guide rail support 200, and the guide rail support 200 is further provided with a fork module 300, the fork module 300 can move a plurality of fixtures 100 together by a fixed distance, so that the fixture 100 moves from one station to the next station. However, if the distance between the adjacent two stations is different, after the fork module 300 completes the fork on the fixture 100, the secondary fork module 400 arranged on one side of the first guide rail 210 can move the fixture 100 after the first fork again to realize the second fork, so that the fixture 100 reaches the position of the next station. Specifically, the secondary fork module 400 drives the plug down mechanism 420 to move horizontally on the third guide rail 412 to the upper side of the fixture 100 by arranging the secondary driving unit 413 on the gantry 411, then the plug down mechanism 420 inserts the plug 425 downward into the plug positioning wheel 110 of the fixture 100, and then the secondary driving unit 413 moves the fixture 100 to the specified position again to complete the second fork.

[0044] The double-layer fork circulation production line described in the embodiment of the application, the fixture 100 moves a fixed distance under the driving of the fork module 300, and then the secondary fork module 400 arranged on one side is used for secondary fork, so that some fixtures 100 move a distance to reach the specified position under the secondary fork, which has the advantages of flexible configuration, high transmission efficiency and small layout area.

[0045] Specifically, as shown in Figure 2 The plug-in tongue lower pressing mechanism 420 includes a translation sliding plate 421, a fourth guide rail 422, a lower pressing sliding frame 423, and a lower pressing cylinder 424. The translation sliding plate 421 is slidably arranged on the third guide rail 412. The fourth guide rail 422 is arranged on the translation sliding plate 421 in the vertical direction. The lower pressing sliding frame 423 is slidably arranged on the fourth guide rail 422. The lower pressing cylinder 424 is fixed on the lower pressing sliding frame 423. The power output end of the lower pressing cylinder 424 is fixedly connected with the translation sliding plate 421. The plug-in tongue 425 is fixedly connected to the bottom surface of the lower pressing sliding frame 423. The translation sliding plate 421 is arranged on the third guide rail 412. The secondary driving unit 413 drives the translation sliding plate 421 to realize translation. Then, the fourth guide rail 422 is arranged on the translation sliding plate 421 in the vertical direction. The plug-in tongue 425 is slidably arranged on the fourth guide rail 422 through the lower pressing sliding frame 423. The lower pressing sliding frame 423 is controlled to slide through the lower pressing cylinder 424, thereby driving the plug-in tongue 425 to move vertically. When the plug-in tongue 425 needs to be inserted into the jig 100, the plug-in tongue 425 is driven to move vertically through the lower pressing cylinder 424. When the plug-in tongue 425 needs to be moved for secondary fork pulling, the plug-in tongue 425 is driven to move horizontally through the secondary driving unit 413.

[0046] Further, the cylinder diameter of the lower pressing cylinder 424 needs to be calculated and selected according to force. On the one hand, the mass of the cylinder needs to be as small as possible to avoid damage to the third guide rail 412 caused by too large load. On the other hand, the plug-in tongue 425 needs to be prevented from being loosened during the secondary fork pulling movement.

[0047] In order to limit the movement range of the lower pressing sliding frame 423, as shown in Figure 2 The lower pressing sliding frame 423 is provided with a buffer upper limit block 426. The translation sliding plate is provided with a buffer lower limit block 427. The buffer upper limit block 426 and the buffer lower limit block 427 are arranged to limit the movement range of the lower pressing sliding frame 423. The buffer upper limit block 426 and the buffer lower limit block 427 have a buffering effect. When the lower pressing sliding frame 423 moves to contact the buffer upper limit block 426 and the buffer lower limit block 427, a buffering force is provided to avoid damage to the equipment caused by impact of the lower pressing sliding frame 423.

[0048] Specifically, as shown in Figure 3As shown, the fork module 300 includes a fork 310 and a second guide rail 320 fixedly arranged on the outer side of the guide rail support 200, and the fork 310 is slidably arranged on the second guide rail 320 through a fork connecting mechanism 350, and the fork 310 is provided with a plurality of pins 311, and the jig 100 is provided with a positioning hole 100A matched with the pins 311, and the inner side of the guide rail support 200 is provided with a fork driving mechanism 330 fixedly connected with the fork 310, and the bottom edge of the fork 310 is further provided with a plurality of fork jacking mechanisms 340. In the first fork, the fork 310 is horizontally moved on the second guide rail 320 through the fork connecting mechanism 350, the fork 310 is movable in the vertical direction on the fork connecting mechanism 350, the fork jacking mechanism 340 on the bottom edge of the fork 310 lifts the fork 310, the pins 311 on the fork 310 are inserted into the positioning hole 100A of the jig 100, and then the fork driving mechanism 330 drives the fork 310 to translate, thereby driving the connected jig 100 to translate, since the moving distance of the fork 310 is fixed, the moving distance of the jig 100 during the moving process is also a fixed value, after completing the first fork, the fork jacking mechanism 340 lowers the fork 310, and then the fork driving mechanism 330 drives the fork 310 to return to the position before the fork, and the next fork is performed.

[0049] As shown in Figure 4 and Figure 5 The fork 310 is provided with a jig distance changing mechanism 500 at the position where the jig moves to in the secondary fork module 400, the jig distance changing mechanism 500 includes a fixed plate 510 fixedly connected with the fork 310, the fixed plate 510 is provided with a fifth guide rail 520, the fifth guide rail 520 is slidably provided with a distance changing pin 530, the fixed plate 510 is provided with a distance changing cylinder 540 fixedly connected, and the output end of the distance changing cylinder 540 is fixedly connected with the distance changing pin 530. Since the moving position of the jig needs to be considered compatible with the type change in the secondary fork, that is, the position after the secondary fork cannot be fixed, in order to adapt to this change, the jig distance changing mechanism 500 is arranged on the fork 310 to adapt to the position change of the jig. The distance changing pin 530 is slidably arranged on the fifth guide rail 520, and the position of the distance changing pin 530 is controlled by the distance changing cylinder 540. The position after the secondary fork is determined according to the machining station, the jig distance changing mechanism 500 adjusts the position of the distance changing pin 530 to correspond to the position of the jig 100 after the secondary fork, so as to ensure that the distance changing pin 530 is inserted into the positioning hole 100A of the jig 100 in the first fork, and the machining position can be changed to adapt to different jig models, which has the advantages of high compatibility.

[0050] Specifically, as shown in Figure 6As shown, the fork driving mechanism 330 comprises a fork translation motor 331, a screw bearing seat 332, a ball screw 333, a sixth guide rail 334 and a sliding block 335. The fork translation motor 331 is fixed at one end of the screw bearing seat 332. The ball screw 333 passes through the bearing on the screw bearing seat 332 and is fixedly connected with the output end of the fork translation motor 331. The sixth guide rail 334 is arranged at the bottom of the screw bearing seat 332 and is parallel to the ball screw 333. The sliding block 335 is slidably arranged on the sixth guide rail 334. The sliding block 335 is provided with a threaded hole matched with the ball screw 333. The ball screw 333 passes through the threaded hole. The sliding block 335 is fixedly connected with the fork 310 through the fork connecting mechanism 350. The output end of the fork translation motor 331 drives the ball screw 333 to rotate. The sliding block 335 installed on the ball screw 333 moves along the sixth guide rail 334 in the rotation of the ball screw 333, thereby driving the fork connected with the sliding block 335 to move.

[0051] The fork connecting mechanism 350 is used for connecting the fork 310 between the fork driving mechanism 330 and the second guide rail 320. Figure 6 As shown, the fork connecting mechanism 330 comprises a connecting plate 351 and an eighth guide rail 352. One side of the connecting plate 351 is fixedly connected with the sliding block 335 or is slidably connected with the second guide rail 320. The eighth guide rail 352 is vertically arranged on the side of the connecting plate 351 close to the fork 310. The fork 310 is slidably arranged on the eighth guide rail 352 through a sliding table 353. The connecting plate 351 is further fixedly connected with a protrusion 354. The fork 310 is provided with a recess matched with the protrusion 354. The protrusion 354 is embedded in the recess. The function of the fork connecting mechanism 350 is to connect the fork 310 so that the fork 310 moves horizontally and vertically along the second guide rail 320 and the eighth guide rail 352. Specifically, the protrusion 354 is arranged to fix the fork 310. The eighth guide rail 352 is arranged in the vertical direction. The fork 310 connected with the sliding table 353 is arranged on the eighth guide rail 352, so that the fork 310 moves in the vertical direction in cooperation with the fork jacking mechanism 340.

[0052] Specifically, as shown in Figure 7As shown, the puller jacking mechanism 340 includes a fixed seat 341, a jacking cylinder 342, a seventh guide rail 343, and a jacking seat 344. The jacking cylinder 342 is fixedly connected to the fixed seat 341. The seventh guide rail 343 is vertically arranged on the side of the fixed seat 341. The jacking seat 344 is slidably arranged on the seventh guide rail 343. The output end of the jacking cylinder 342 is vertically fixedly connected to the jacking seat 344. The top of the jacking seat 344 is provided with a guide wheel 345 abutting against the bottom edge of the puller 310. By arranging the jacking cylinder 342, the jacking seat 344 is driven to ascend or descend in the vertical direction of the seventh guide rail 343, so that the guide wheel 345 arranged on the jacking seat 344 jacks up the puller 310 abutting against it, so that the puller 310 realizes the ascending or descending in the vertical direction.

[0053] In order to make the jig 100 after the puller more accurately located in the machining position, as shown in Figure 8 As shown, the jig positioning mechanism 600 is arranged on one side of the jig 100. The jig positioning mechanism 600 includes a base 610, a positioning cylinder 620, and a positioning pulley 630. The positioning cylinder 620 is fixedly connected to the base 610. The output end direction of the positioning cylinder 620 is perpendicular to the moving direction of the jig 100. The output end of the positioning cylinder 620 is fixedly connected to the positioning pulley 630. The jig 100 is provided with a positioning groove 100B. The positioning pulley 630 can abut against the positioning groove 100B under the drive of the positioning cylinder 620. By arranging the jig positioning mechanism 600, the jig 100 can be accurately dropped into the pre-ordered machining position. The jig 100 is provided with the positioning groove 100B. The positioning pulley 630 is driven by the positioning cylinder 620 to abut into the positioning groove 100B, so that the jig 100 is limited in the required machining position.

[0054] In the above embodiment, as shown in Figure 1 As shown, the guide rail bracket 200, the first guide rail 210, the puller module 300, and the secondary puller module 400 include two groups arranged in parallel. The two ends of the guide rail bracket 200 are connected through the jig guide rail switching mechanism 700 respectively. The guide rail bracket 200 and the jig guide rail switching mechanism 700 enclose to form a rectangular transmission line. The jig 100 is switched between the two first guide rails 210 on both sides through the jig guide rail switching mechanism 700. By arranging two groups of first guide rails 210 and connecting them at both ends through the jig guide rail switching mechanism 700, the guide rail forms a circulating backflow line, reduces the occupied area of the equipment, and improves the transmission efficiency.

[0055] This application describes a double-layer shift fork cycle production line. For equally spaced processing positions, fixture transfer is achieved through a single shift fork. For unequally spaced processing positions, fixture transfer is achieved through a second shift fork based on the first shift fork. When the fixture 100 is in its initial position, the shift fork lifting mechanism 340 lifts the shift fork 310, causing the pin 311 to insert into the positioning hole 100A of the fixture 100. Then, the shift fork driving mechanism 330 moves the shift fork 310 and multiple fixtures 100 a fixed distance to complete one shift fork. The shift fork lifting mechanism 340 then lowers the shift fork 310, and the shift fork driving mechanism 330 drives the shift fork 310 back to its original position. Then, the tongue pressing mechanism 420 inserts the tongue 425 into the fixture 100 requiring a second shift fork after the first shift fork. The secondary drive unit 413 continues to move the fixture 100, allowing it to complete the second shift fork. Finally, the tongue 425 rises back to its position after the first shift fork.

[0056] The double-layer shift fork circulation production line described in this application has the following beneficial effects:

[0057] 1. The jig 100 moves a fixed distance under the drive of the pull fork module 300, and then is pulled a second time by the secondary pull fork module 400 set on one side, so that some of the jigs 100 that have moved at equal intervals continue to move a distance under the secondary pull fork to reach the designated position. It has the advantages of flexible configuration, high transmission efficiency and small layout area.

[0058] 2. To address the issue of inconsistent positioning of the secondary shift fork after compatibility changes, a fixture pitch-changing mechanism 500 is incorporated into the shift fork 310 to accommodate positional variations. The pitch-changing pin 530 is slidably mounted on the fifth guide rail 520, and its position is controlled by a pitch-changing cylinder 540. The position after the secondary shift fork is determined based on the machining station. The fixture pitch-changing mechanism 500 adjusts the position of the pitch-changing pin 530 to correspond to the position of the fixture 100 after the secondary shift fork, ensuring that the pitch-changing pin 530 is inserted into the positioning hole 100A of the fixture 100 during the first shift fork. This adaptable mechanism accommodates different fixture models and changes in machining position, offering high compatibility.

[0059] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and the present invention also intends to include these modifications and variations.

Claims

1. A double-layered puller cycle production line, characterized in that: comprising a guide rail support (200), the upper surface of the guide rail support (200) is provided with a first guide rail (210), a plurality of jigs (100) are slidably arranged on the first guide rail (210), a puller module (300) is arranged on the guide rail support (200), and the puller module (300) is used to drive the jigs (100) to move at equal distances; one side of the first guide rail (210) is also provided with a secondary puller module (400), and the secondary puller module (400) is used to move and adjust the positions of part of the jigs (100) again after the puller module (300) completes the movement; the secondary puller module (400) comprises a secondary puller driving mechanism (410) and a plug depressing mechanism (420), the secondary puller driving mechanism (410) comprises a gantry (411), a third guide rail (412) and a secondary driving unit (413), the gantry (411) is arranged on the inner side of the guide rail support (200) and is parallel to the first guide rail (210), the third guide rail (412) is arranged on the gantry (411) and is parallel to the first guide rail (210), the plug depressing mechanism (420) is arranged above the jigs (100) and is slidably connected to the third guide rail (412), the secondary driving unit (413) drives the plug depressing mechanism (420) to translate and slide on the third guide rail (412), the plug depressing mechanism (420) is provided with a plug (425), and the jigs (100) are provided with plug positioning wheels (110) matched with the plug (425); the puller module (300) comprises a puller (310) and a second guide rail (320), the second guide rail (320) is fixedly arranged on the outer side of the guide rail support (200), the puller (310) is slidably arranged on the second guide rail (320) through a puller connecting mechanism (350), the puller (310) is provided with a plurality of latches (311), the jigs (100) are provided with positioning holes (100A) matched with the latches (311), the inner side of the guide rail support (200) is provided with a puller driving mechanism (330) fixedly connected with the puller (310), and the bottom edge of the puller (310) is further provided with a plurality of puller jacking mechanisms (340); the puller (310) is provided with a jig distance changing mechanism (500) at the position reached by the jigs moved by the secondary puller module (400), the jig distance changing mechanism (500) comprises a fixed plate (510) fixedly connected with the puller (310), the fixed plate (510) is provided with a fifth guide rail (520), the fifth guide rail (520) is slidably provided with a distance changing latch (530), and the fixed plate (510) is provided with a distance changing cylinder (540) fixedly connected thereto, and the output end of the distance changing cylinder (540) is fixedly connected with the distance changing latch (530). ​ ​ 2. The double-layered pulling fork circulation production line according to claim 1, characterized in that: the plug pressing mechanism (420) comprises a translation sliding plate (421), a fourth guide rail (422), a pressing sliding frame (423), and a pressing cylinder (424), the translation sliding plate (421) is slidably arranged on the third guide rail (412), the fourth guide rail (422) is arranged on the translation sliding plate (421) in the vertical direction, the pressing sliding frame (423) is slidably arranged on the fourth guide rail (422), the pressing cylinder (424) is fixed on the pressing sliding frame (423), the power output end of the pressing cylinder (424) is fixedly connected with the translation sliding plate (421), and the plug (425) is fixedly connected to the bottom surface of the pressing sliding frame (423).

3. The double-layered pulling fork circulation production line according to claim 2, characterized in that: the pressing sliding frame (423) is provided with a buffer upper limit block (426), and the translation sliding plate is provided with a buffer lower limit block (427).

4. The double-layered pulling fork circulation production line according to claim 1, characterized in that: the pulling fork driving mechanism (330) comprises a pulling fork translation motor (331), a screw bearing seat (332), a ball screw (333), a sixth guide rail (334), and a sliding block (335), the pulling fork translation motor (331) is fixed to one end of the screw bearing seat (332), the ball screw (333) passes through the bearing on the screw bearing seat (332) and is fixedly connected with the output end of the pulling fork translation motor (331), the sixth guide rail (334) is arranged at the bottom of the screw bearing seat (332) and is parallel to the ball screw (333), and the sliding block (335) is slidably arranged on the sixth guide rail (334); the sliding block (335) is provided with a threaded hole matched with the ball screw (333), the ball screw (333) passes through the threaded hole, and the sliding block (335) is fixedly connected with the pulling fork (310) through the pulling fork connecting mechanism (350).

5. The double-layered pulling fork circulation production line according to claim 4, characterized in that: the pulling fork connecting mechanism (350) comprises a connecting plate (351) and an eighth guide rail (352), one side of the connecting plate (351) is fixedly connected with the sliding block (335) or slidably connected with the second guide rail (320), the eighth guide rail (352) is vertically arranged on the side of the connecting plate (351) close to the pulling fork (310), the pulling fork (310) is slidably arranged on the eighth guide rail (352) through a sliding table (353), the connecting plate (351) is further fixedly connected with a protruding block (354), the pulling fork (310) is provided with a recess matched with the protruding block (354), and the protruding block (354) is embedded in the recess.

6. The double-layered pulling fork circulation production line according to claim 4, characterized in that: The pulling fork jacking mechanism (340) comprises a fixed seat (341), a jacking cylinder (342), a seventh guide rail (343) and a jacking seat (344), the jacking cylinder (342) is fixedly connected to the fixed seat (341), the seventh guide rail (343) is vertically arranged on the side of the fixed seat (341), the jacking seat (344) is slidably arranged on the seventh guide rail (343), and the output end of the jacking cylinder (342) is vertically fixedly connected with the jacking seat (344), and the top of the jacking seat (344) is provided with a guide wheel (345) abutting against the bottom edge of the pulling fork (310).

7. The double-layer pulling fork circulation production line according to claim 6, characterized in that: Further comprising a jig positioning mechanism (600), the jig positioning mechanism (600) is arranged on one side of the jig (100), the jig positioning mechanism (600) comprises a base (610), a positioning cylinder (620) and a positioning pulley (630), the positioning cylinder (620) is fixedly connected to the base (610), and the output end direction of the positioning cylinder (620) is perpendicular to the moving direction of the jig (100), the output end of the positioning cylinder (620) is fixedly connected with the positioning pulley (630), and the jig (100) is provided with a positioning groove (100B), the positioning pulley (630) can abut against the positioning groove (100B) under the drive of the positioning cylinder (620).

8. The double-layer pulling fork circulation production line according to any one of claims 1-7, characterized in that: The guide rail support (200), the first guide rail (210), the pulling fork module (300) and the secondary pulling fork module (400) comprise two groups arranged in parallel, the two ends of the guide rail support (200) are connected by a jig guide rail switching mechanism (700) respectively, the guide rail support (200) and the jig guide rail switching mechanism (700) form a rectangular transmission line, and the jig (100) is switched between the first guide rails (210) on both sides through the jig guide rail switching mechanism (700).

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