CN214298185U - Variable-pitch gripper mechanism for distributing materials on packaging disc - Google Patents

Abstract

A variable-pitch gripper mechanism for distributing materials on an encapsulation disc relates to the field of encapsulation and comprises a rack main body, a sliding assembly, a push block assembly and a gripping assembly, wherein the push block assembly comprises a push block mounting plate fixedly connected with the sliding assembly, a slide rail is arranged on the push block mounting plate, a plurality of push blocks are slidably arranged on the slide rail, every two adjacent push blocks are connected through a countersunk head bolt, each push block is provided with a threaded hole and a countersunk head through hole, the countersunk head bolt is inserted into the countersunk head through hole of one push block, and the tail part of the countersunk head bolt is in threaded connection with the threaded hole of the other adjacent push block; the transverse moving cylinder is arranged on the push block mounting plate, and the output end of the transverse moving cylinder is fixedly connected with the push block positioned on the outermost side; the grabbing assembly comprises grabbing barrel bar-shaped mounting blocks fixedly mounted at the output end of the lifting cylinder and a plurality of grabbing barrel assemblies slidably connected with the grabbing barrel bar-shaped mounting blocks, and the grabbing barrel assemblies are connected with the push blocks in a one-to-one correspondence mode. The mechanism can grab a plurality of parts at one time and put the parts into the corresponding packaging tray.

Description

Variable-pitch gripper mechanism for distributing materials on packaging disc

Technical Field

The utility model relates to an encapsulation field specifically, relates to a encapsulation dish divides material to use displacement tongs mechanism.

Background

After the parts are manufactured in batches from the production line, for the part products to be sold in batches, the existing production line needs to take out a plurality of parts from the processing jig disc and put the parts into the corresponding part packaging disc, and then the parts are packaged and packed so as to be convenient to transport. However, the above steps are inefficient in the existing production workshop, which mainly depends on workers to place the parts into the packaging tray one by one.

Disclosure of Invention

The utility model provides a packaging tray divides material to use displacement tongs mechanism, this mechanism can once only snatch a plurality of parts and make each part put into corresponding packaging tray with the mode that equals the interval, and its specific technical scheme is as follows:

the variable-pitch gripper mechanism for distributing materials on the packaging discs is characterized by comprising a rack, wherein the rack comprises two supports for supporting and a rack main body erected between the two supports, a sliding groove is formed in the rack main body, and a driving motor is arranged at one end of the rack main body; the sliding assembly is arranged on the rack main body, and the driving motor drives the sliding assembly to slide in the sliding groove; the push block assembly comprises a push block mounting plate fixedly connected with the sliding assembly, a slide rail extending along the horizontal direction is arranged on one surface of the push block mounting plate, a plurality of push blocks are slidably arranged on the slide rail, every two adjacent push blocks are connected through a countersunk head bolt, each push block is provided with a threaded hole and a countersunk head through hole, the diameter of each countersunk head through hole is larger than the tail part of the countersunk head bolt and smaller than the head part of the countersunk head bolt, the tail part of the countersunk head bolt is provided with a section of thread, the countersunk head bolt is inserted into the countersunk head through hole of one push block, the tail part of the countersunk head bolt penetrates through the countersunk head through hole to block the head part of the countersunk head bolt, and the tail part of the countersunk head bolt is in threaded connection with the threaded hole of the other adjacent push block; the output end of the transverse cylinder is fixedly connected with one of the push blocks positioned on the outermost side, and the output end of the transverse cylinder pulls one of the push blocks positioned on the outermost side, and then the other push blocks are sequentially pulled by the countersunk head bolts to enable the push blocks to achieve maximum displacement, so that the distance between every two adjacent push blocks is pulled to be maximum and the intervals are the same; the grabbing assembly comprises a lifting cylinder arranged on the sliding assembly, a grabbing barrel bar-shaped mounting block fixedly arranged at the output end of the lifting cylinder, and a plurality of grabbing barrel assemblies slidably connected with the grabbing barrel bar-shaped mounting block, wherein the number of the grabbing barrel assemblies is the same as that of the push blocks, the positions of the grabbing barrel assemblies and the push blocks are in one-to-one correspondence, and each grabbing barrel assembly is fixedly connected with the corresponding push block.

Further, each grabbing barrel assembly comprises a grabbing barrel for grabbing parts and a connecting piece for connecting the grabbing barrel bar-shaped mounting block with the grabbing barrel, wherein a mounting shaft is arranged on the grabbing barrel bar-shaped mounting block, one end of the connecting piece of each grabbing barrel assembly is slidably sleeved on the mounting shaft, and the other end of the connecting piece is connected with the grabbing barrel.

Further, the lower extreme of ejector pad is provided with the fixed part, T type groove has been seted up on the fixed part grab a section of thick bamboo orientation one side of fixed part is provided with corresponding T type bulge, T type bulge inserts T type inslot and pass in proper order through the bolt T type groove with T type bulge carries out fixed connection.

Furthermore, the sliding assembly comprises a sliding screw which is slidably arranged in the sliding groove, a sliding block which is arranged on one side of the rack main body and a sliding connecting piece which is connected with the sliding block and the sliding screw; the frame comprises a frame main body, a sliding block, an upper cylinder, a lower cylinder, an upper sliding block, a lower sliding block, an installation block, a pushing block installation plate and a lifting cylinder, wherein the sliding block is arranged on one side, away from the frame main body, of the sliding block, the upper cylinder and the lower cylinder are arranged in the vertical direction, the output end of the upper cylinder and the lower cylinder is provided with the upper sliding block and the lower sliding block, the upper sliding block and the lower sliding block move up and down along with the stretching of the output end of the upper cylinder and the lower cylinder, the upper sliding block and the lower sliding block are provided with the installation block, the pushing block installation plate is installed on the installation block, and the lifting cylinder is installed on the installation block and located above the pushing block installation plate.

Furthermore, the opening edge of one end of the grabbing barrel, which is used for grabbing the part, is provided with four grabbing parts distributed at intervals, and the grabbing parts are strip-shaped structures formed by extending the opening edge of one end of the grabbing barrel, which is used for grabbing the part, along the axial direction of the grabbing barrel.

Furthermore, an electromagnet or an air suction pipeline is arranged in the grabbing barrel and used for grabbing parts.

Furthermore, a crawler drag chain is arranged on the upper end face of the frame main body and is connected with the sliding assembly through a Z-shaped connecting piece.

Furthermore, a clamping groove is formed in the push block fixedly connected with the output end of the transverse moving cylinder, and the output end of the transverse moving cylinder is clamped and embedded in the clamping groove to enable the push block to be fixedly clamped and embedded with the output end of the transverse moving cylinder.

Furthermore, except the push blocks connected with the output end of the transverse moving cylinder, each push block is provided with two threaded holes and two countersunk through holes, and the threaded holes and the countersunk through holes are parallel to each other and are alternately arranged.

Furthermore, the pushing block is adjacent towards one side of the countersunk head through hole of the pushing block, and a yielding hole is formed in the pushing block and is coaxial with the countersunk head through hole.

The utility model discloses beneficial effect:

the transverse moving cylinder controls the expansion and contraction of the plurality of push blocks, the countersunk head bolt plays a role in connecting, transmitting power and limiting the maximum expansion distance between two adjacent push blocks, further the variable distance of the push blocks is realized, a plurality of grabbing barrels of the grabbing assembly are connected with the push blocks in a one-to-one correspondence mode, the assembly moves along with the movement of the push blocks, the variable distance effect of the plurality of grabbing barrels is realized through the linkage action, the lifting cylinder can simultaneously control the displacement of the plurality of grabbing barrels in the vertical direction, the workpiece can be transferred from the processing jig disc to the final detection factory packaging disc through the plurality of grabbing barrels with variable distances, and the mechanism improves the part transfer efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic three-dimensional structure diagram of a variable-pitch gripper mechanism for distributing packaging trays according to the present invention;

fig. 2 is a first cross-sectional view of the variable-pitch gripper mechanism for distributing materials on the packaging tray, which is provided by the present invention, cut along the push block assembly;

FIG. 3 is an enlarged view of a portion of the glide assembly shown in FIG. 2;

FIG. 4 is an enlarged partial view of the pusher block assembly shown in FIG. 2;

fig. 5 is a second cross-sectional view of the variable-pitch gripper mechanism for distributing material on the packaging tray, taken along the gripping assembly;

FIG. 6 is an enlarged view of a portion of the grasping assembly shown in FIG. 5;

fig. 7 is a partially exploded view of the variable-pitch gripper mechanism for separating packaging trays according to the present invention;

fig. 8 is a schematic three-dimensional structure diagram of the variable-pitch gripper mechanism for distributing materials on the packaging tray, provided by the present invention, on the machine platform;

fig. 9 is an enlarged view of a portion of the variable-pitch gripper mechanism for separating the trays from the tray shown in fig. 8.

A-a variable-pitch gripper mechanism for distributing materials on a packaging disc; b-packaging the disc;

10-a frame; 101-a gantry body; 102-a support; 103-crawler drag chain; 104-a drive motor; 105-a chute; 106-Z type connector;

20-a glide assembly; 201-sliding screw; 202-a slider connection tab; 203-sliding block; 204-upper and lower cylinders; 205-upper and lower sliders; 206-a mounting block;

30-a pusher block assembly; 301-a traversing cylinder; 302-a push block mounting plate; 303-a slide rail; 304-a push block; 3041-a fixed part; 3042-a threaded hole; 3043-countersunk through holes; 3044-T type groove; 3045-a card slot; 305-a slide block; 306-countersunk head bolts; 307-lifting cylinder mounting block;

40-a grasping assembly; 401-grabbing a barrel bar-shaped mounting block; 402-installation of shafts; 403-a grasping cylinder; 4031-T-shaped projection; 4032-a grasping portion; 404-a connector; 405-lifting cylinder.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Hereinafter, an optional dual-cavity glasses leg mold provided by the present invention will be described in more detail with reference to a specific embodiment and its related drawings.

As shown in fig. 1, in an embodiment, a variable-pitch gripper mechanism a for separating packaging trays is provided, which mainly includes a frame 10, a slide assembly 20, a push block assembly 30 and a gripping assembly 40, wherein the slide assembly 20 is slidably disposed on the frame 10, and the push block assembly 30 and the gripping assembly 40 are mounted on the slide assembly 20. Referring to fig. 1, in this embodiment, a driving motor 104 is disposed at one end of the frame 10 for controlling the sliding motion of the sliding assembly 20 on the frame 10, an output end of a traverse cylinder 401 is connected to the push block assembly 30 for controlling the expansion and contraction of the push block assembly 30, so as to implement pitch change, and a lifting cylinder 405 is used for controlling the displacement of the grabbing assembly 40 along the up-down direction, so as to implement the process of grabbing parts from the processing jig tray to the final detection of the outgoing packaging tray.

Specifically, in the present embodiment, as shown in fig. 2 and 5, the rack 10 includes two supports 102 for supporting, and a rack main body 101 erected between the two supports 102. The rack main body 101 is provided with a slide groove 105, and the drive motor 104 is provided at one end of the rack main body 101. Further, a crawler chain 103 is provided on an upper end surface of the housing body 101, and the crawler chain 103 is connected to the traveling assembly 20 through a Z-shaped link 106 for protecting respective electric wire circuits.

Referring to fig. 2, 3 and 5, the sliding assembly 20 is disposed on the rack main body 101, and the driving motor 104 drives the sliding assembly 20 to slide in the sliding slot. Specifically, the sliding assembly 20 includes a sliding screw 201 slidably disposed in the sliding groove 105, a sliding block 203 disposed on one side of the rack main body 101, and a sliding connecting piece 202 connecting the sliding block 203 and the sliding screw 201. An upper and lower cylinder 204 is arranged on one side of the sliding block 203 far away from the rack main body 101, the upper and lower cylinder 204 is arranged along the vertical direction, an upper and lower sliding block 205 is arranged on the output end of the upper and lower cylinder 204 in the embodiment, the upper and lower sliding block 205 moves up and down along with the stretching of the output end of the upper and lower cylinder 204, an installation block 206 is arranged on the upper and lower sliding block 205, a push block installation plate 302 is installed on the installation block 206, and a lifting cylinder 308 is installed on the installation block 206 and is positioned on the push block installation plate 302.

Referring to fig. 2, 4 and 5, the push block assembly 30 includes a push block mounting plate 302 fixedly connected to the mounting block 206, and two sets of slide rails 303 are disposed on one side of the push block mounting plate 302 and extend in the horizontal direction. A plurality of push blocks 304 are slidably arranged on the slide rail 303 through a slide block 305, every two adjacent push blocks 304 are connected through a countersunk head bolt 306, wherein each push block 304 is provided with a threaded hole 3042 and a countersunk head through hole 3043, the diameter of the countersunk head through hole 3043 is larger than the tail of the countersunk head bolt 306 and smaller than the head of the countersunk head bolt 306, and the tail of the countersunk head bolt 306 is provided with a section of thread. During assembly, the countersunk head bolt 306 is inserted into the countersunk head through hole 3043 of one of the push blocks 304, so that the tail of the countersunk head bolt 306 passes through the countersunk head through hole 3043 and the head of the countersunk head bolt 306 is limited in the countersunk head through hole, and the tail of the countersunk head bolt 306 is in threaded connection with the threaded hole 3042 of the other push block 304.

In this embodiment, the traverse cylinder 301 is disposed on the push block mounting plate 302, and the output end of the traverse cylinder 301 is fixedly connected to one of the push blocks 304 located at the outermost side. When each pushing block needs to be unfolded, the output end of the traverse cylinder 301 pulls one pushing block 304 located at the outermost side, and then the countersunk head bolts 306 sequentially pull the other pushing blocks 304 to enable each pushing block 304 to achieve the maximum displacement, so that the distance between the adjacent pushing blocks 304 is pulled to be the maximum and the intervals are the same. Similarly, when each pushing block needs to retract, the output end of the traverse cylinder 301 pushes one pushing block 304 located at the outermost side, and then the pushing force is transmitted by the countersunk head bolts 306, so as to sequentially push each pushing block to retract.

Further, each of the push blocks 304 is provided with two screw holes 3042 and two countersunk through holes 3043, except for the push block 304 connected to the output end of the traverse cylinder 301. As shown in fig. 4, the threaded holes 3042 and the countersunk through holes 3043 are arranged in parallel and alternately. Furthermore, the push block 304 is provided with a relief hole on a side facing the countersunk through hole 3043 of the adjacent push block 304, and the relief hole and the countersunk through hole 3043 are coaxially arranged to avoid direct collision between the countersunk bolt 306 and the push block 304.

In addition, as shown in fig. 7, the push block 304 fixedly connected to the output end of the traverse cylinder 301 is provided with a clamping groove 3045, the output end of the traverse cylinder 301 is placed and clamped in the clamping groove 3045, so that the push block 304 is fixedly clamped to the output end of the traverse cylinder 304, the structure enhances the connection reliability of the traverse cylinder 301 and the connected push block 304, and prevents the output end of the traverse cylinder 301 and the push block 304 from falling off accidentally.

Referring to fig. 2, 5 and 6, the grasping assembly 40 includes a lifting cylinder 405 mounted on the sliding assembly 20, a grasping barrel bar-shaped mounting block 401 fixedly mounted at an output end of the lifting cylinder 405, and a plurality of grasping barrel assemblies slidably connected to the grasping barrel bar-shaped mounting block 401, the number of the plurality of grasping barrel assemblies is the same as the number of the pushing blocks 304, the positions of the plurality of grasping barrel assemblies and the plurality of pushing blocks 304 are in one-to-one correspondence, and each grasping barrel assembly is fixedly connected to the corresponding pushing block 304.

Further, in this embodiment, each of the grabbing cylinder assemblies includes a grabbing cylinder 403 for grabbing parts and a connecting member 404 for connecting the grabbing cylinder bar-shaped mounting block 401 with the grabbing cylinder 403, wherein both ends of the grabbing cylinder bar-shaped mounting block 401 are bent downward to extend so that the whole grabbing cylinder bar-shaped mounting hole 401 is in a flat U shape, a mounting shaft 402 is provided at both ends of the grabbing cylinder bar-shaped mounting block 401, as shown in the figure, one end of the connecting member 404 of each grabbing cylinder assembly having a cylinder is slidably fitted on the mounting shaft 402, and the other end of the connecting member 404 is connected with the grabbing cylinder 403 through a sleeve (not labeled).

Further, as shown in fig. 7, a fixing portion 3041 is disposed at a lower end of the pushing block 304, a T-shaped groove 3044 is disposed on the fixing portion 3041, and a corresponding T-shaped protrusion 4031 is disposed on a side of the grabbing barrel 403 facing the fixing portion 3041. During assembly, the T-shaped protrusion 4031 is inserted into the T-shaped groove 3044 and fixedly connected with the T-shaped groove 3044 and the T-shaped protrusion 4031 through bolts (not shown) sequentially passing through threaded holes formed in the T-shaped groove 3044 and the T-shaped protrusion 4031, so that play between the push block 304 and the grabbing barrel 403 is prevented, and the assembly stability is improved.

In this embodiment, the opening edge of one end of the grabbing cylinder 403 for grabbing the part is provided with four grabbing portions 4032 distributed at intervals, and the grabbing portions 4032 are strip-shaped structures formed by extending from the opening edge of one end of the grabbing cylinder 403 for grabbing the part along the axial direction of the grabbing cylinder 403, and the structures are matched with the outer contour of the part to be grabbed.

Furthermore, an electromagnet or an air suction pipeline is arranged in the grabbing cylinder 403 for grabbing parts, the electromagnet can be arranged in the grabbing cylinder 403 to control grabbing or putting down the parts through power on and off, an air suction pipe can also be arranged, the air suction pipe sucks air to form negative pressure to suck the parts, and the parts are put down when the air suction is stopped.

As shown in fig. 8 and 9, the transverse moving cylinder controls the expansion and contraction of the push blocks, the countersunk bolts have the functions of connecting, transmitting power and limiting the maximum expansion distance between two adjacent push blocks, so that the variable distance of the push blocks is realized, a plurality of grabbing cylinders of the grabbing assembly are connected with the push blocks in a one-to-one correspondence manner, the grabbing assemblies move along with the movement of the push blocks, the variable distance function of the grabbing cylinders is realized through the linkage action, the lifting cylinder can simultaneously control the vertical displacement of the grabbing cylinders, so that the displacement of the grabbing cylinders from the processing jig disc to the final detection factory packaging disc is realized, and the part transfer efficiency is improved by the mechanism.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A variable-pitch gripper mechanism for distributing materials on a packaging disc is characterized by comprising

The rack comprises two supports for supporting and a rack main body erected between the two supports, a sliding groove is formed in the rack main body, and a driving motor is arranged at one end of the rack main body;

the sliding assembly is arranged on the rack main body, and the driving motor drives the sliding assembly to slide in the sliding groove;

the push block assembly comprises a push block mounting plate fixedly connected with the sliding assembly, a slide rail extending along the horizontal direction is arranged on one surface of the push block mounting plate, a plurality of push blocks are slidably arranged on the slide rail, every two adjacent push blocks are connected through a countersunk head bolt, each push block is provided with a threaded hole and a countersunk head through hole, the diameter of each countersunk head through hole is larger than the tail part of the countersunk head bolt and smaller than the head part of the countersunk head bolt, the tail part of the countersunk head bolt is provided with a section of thread, the countersunk head bolt is inserted into the countersunk head through hole of one push block, the tail part of the countersunk head bolt penetrates through the countersunk head through hole to block the head part of the countersunk head bolt, and the tail part of the countersunk head bolt is in threaded connection with the threaded hole of the other adjacent push block;

the output end of the transverse cylinder is fixedly connected with one of the push blocks positioned on the outermost side, and the output end of the transverse cylinder pulls one of the push blocks positioned on the outermost side, and then the other push blocks are sequentially pulled by the countersunk head bolts to enable the push blocks to achieve maximum displacement, so that the distance between every two adjacent push blocks is pulled to be maximum and the intervals are the same;

the grabbing assembly comprises a lifting cylinder arranged on the sliding assembly, a grabbing barrel bar-shaped mounting block fixedly arranged at the output end of the lifting cylinder, and a plurality of grabbing barrel assemblies slidably connected with the grabbing barrel bar-shaped mounting block, wherein the number of the grabbing barrel assemblies is the same as that of the push blocks, the positions of the grabbing barrel assemblies and the push blocks are in one-to-one correspondence, and each grabbing barrel assembly is fixedly connected with the corresponding push block.

2. The variable-pitch gripper mechanism for distributing the packaging discs according to claim 1, wherein each gripper cylinder assembly comprises a gripper cylinder for gripping parts and a connecting piece for connecting the gripper cylinder bar-shaped mounting block with the gripper cylinder, wherein a mounting shaft is arranged on the gripper cylinder bar-shaped mounting block, one end of the connecting piece of each gripper cylinder assembly is slidably sleeved on the mounting shaft, and the other end of the connecting piece is connected with the gripper cylinder.

3. The variable-pitch gripper mechanism for distributing the packaging trays according to claim 2, wherein a fixing portion is disposed at a lower end of the pushing block, a T-shaped groove is disposed on the fixing portion, a corresponding T-shaped protrusion is disposed on a side of the gripping cylinder facing the fixing portion, and the T-shaped protrusion is inserted into the T-shaped groove and fixedly connected to the T-shaped protrusion through a bolt passing through the T-shaped groove and the T-shaped protrusion in sequence.

4. The variable-pitch gripper mechanism for distributing the packaging trays according to claim 1, wherein the sliding assembly comprises a sliding screw slidably arranged in the sliding groove, a sliding block arranged on one side of the rack body, and a sliding connecting piece connecting the sliding block and the sliding screw;

the frame comprises a frame main body, a sliding block, an upper cylinder, a lower cylinder, an upper sliding block, a lower sliding block, an installation block, a pushing block installation plate and a lifting cylinder, wherein the sliding block is arranged on one side, away from the frame main body, of the sliding block, the upper cylinder and the lower cylinder are arranged in the vertical direction, the output end of the upper cylinder and the lower cylinder is provided with the upper sliding block and the lower sliding block, the upper sliding block and the lower sliding block move up and down along with the stretching of the output end of the upper cylinder and the lower cylinder, the upper sliding block and the lower sliding block are provided with the installation block, the pushing block installation plate is installed on the installation block, and the lifting cylinder is installed on the installation block and located above the pushing block installation plate.

5. The variable-pitch gripper mechanism for distributing the packaging trays according to claim 2, wherein the opening edge of one end of the gripping cylinder for gripping the parts is provided with four gripping parts which are distributed at intervals, and the gripping parts are strip-shaped structures formed by extending from the opening edge of one end of the gripping cylinder for gripping the parts along the axial direction of the gripping cylinder.

6. The variable-pitch gripper mechanism for distributing the packaging discs according to claim 5, wherein an electromagnet or an air suction pipeline is arranged in the gripping cylinder and used for gripping parts.

7. The variable-pitch gripper mechanism for distributing the packaging trays according to claim 1, wherein a caterpillar drag chain is arranged on the upper end surface of the frame main body, and the caterpillar drag chain is connected with the sliding assembly through a Z-shaped connecting piece.

8. The variable-pitch gripper mechanism for distributing the packaging discs as claimed in claim 1, wherein the push block fixedly connected with the output end of the traverse cylinder is provided with a clamping groove, and the output end of the traverse cylinder is clamped and embedded in the clamping groove so that the push block is clamped and embedded with the output end of the traverse cylinder.

9. The variable-pitch gripper mechanism for distributing the packaging discs according to claim 1, wherein each pushing block is provided with two threaded holes and two countersunk through holes except the pushing block connected with the output end of the traverse cylinder, and the threaded holes and the countersunk through holes are parallel to each other and are alternately arranged.

10. The variable-pitch gripper mechanism for distributing the packaging discs according to claim 9, wherein the push block is provided with a abdicating hole at one side facing the countersunk through hole adjacent to the push block, and the abdicating hole is coaxial with the countersunk through hole.

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