Mutual pulling type brick unloading clamp

Abstract

The utility model discloses a mutual pulling type brick unloading clamp, which relates to the technical field of movable clamps and comprises a fixing frame and a power cylinder group. A plurality of guide grooves are fixedly formed in the fixing frame, a first sliding rail and a second sliding rail are arranged in each guide groove, a first support is fixedly arranged at the end of each first sliding rail, a second support is arranged on the side, away from the first support, of each first sliding rail, and the end of each second support is fixedly connected with the corresponding second sliding rail. The power cylinder group comprises a plurality of groups of power cylinders, each group of power cylinders comprises two oppositely arranged power cylinders, a first outer clamping plate is fixedly arranged on the first bracket, a second outer clamping plate is fixedly arranged on the second bracket, and the working surfaces of the first outer clamping plate and the second outer clamping plate are oppositely arranged; and the first bracket and the second bracket are synchronously close to or far away from each other under the driving of the plurality of groups of power cylinders. Therefore, the synchronous approaching of the first bracket and the second bracket is realized by arranging the power cylinders which move in opposite directions, so that the clamping of a workpiece is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile clamps, in particular to a mutual pulling brick unloading clamp. Background Art

[0002] Brick blanks are basic products in the construction industry. The production of brick blanks is labor-intensive and the working environment is poor. The production cost is getting higher and higher. In order to speed up production and improve the degree of automation, many companies currently use robots to load, unload and stack brick blanks. In the process of moving brick blanks by robots, professional fixtures are generally required. There are many types of fixtures, which generally work independently, have short travels, and respond slowly.

[0003] In the prior art, there is a patent application document with the publication number CN108820330A, entitled "A four-sided clamping synchronous clamp", in which multiple cranks are provided and driven by multiple cylinders to achieve four-sided clamping and palletizing. Since it is four-sided clamping and the multiple cylinders are almost independent, it is difficult to ensure the consistency and synchronization of movement, so the failure rate is high and the practicality is poor. Utility Model Content

[0004] In order to overcome the above-mentioned defects, the purpose of the utility model is to provide a mutual pulling brick unloading clamp, which realizes the synchronous approach of the first bracket and the second bracket by setting power cylinders that move towards each other, thereby achieving clamping of the workpiece.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a mutually pulling brick unloading clamp, which is characterized by comprising a fixed frame and a power cylinder group; a plurality of guide grooves are fixedly arranged on the fixed frame, a first slide rail and a second slide rail are arranged in each guide groove, a guide wheel is also arranged in the guide groove, and the first slide rail and the second slide rail are clamped between the upper and lower guide wheels; a first bracket is fixedly arranged at the end of the first slide rail, a second bracket is arranged on the side away from the first bracket, and the end of the second bracket is fixedly connected to the second slide rail;

[0006] The power cylinder group includes several groups of power cylinders, each group of power cylinders includes two relatively arranged power cylinders, the telescopic rods of the two power cylinders are fixed by cylinder pull rods, and the cylinder bodies of the two power cylinders are respectively fixedly connected to the first bracket or the second bracket through their own connecting seats; a first outer clamping plate is fixed on the first bracket, and a second outer clamping plate is fixed on the second bracket, and the working surfaces of the first outer clamping plate and the second outer clamping plate are arranged opposite to each other; under the drive of several groups of power cylinders, the first bracket and the second bracket approach or move away synchronously.

[0007] Preferably, a linkage mechanism is further provided between the first bracket and the second bracket, and the linkage mechanism includes a linkage gear and two linkage racks. The linkage gear is rotatably installed on the fixed frame, one end of each linkage rack is meshed with the linkage gear for transmission, and the other end is connected to the first bracket or the second bracket through a hinge seat.

[0008] Preferably, a first inner splint and a second inner splint are provided between the first outer splint and the second outer splint; the first inner splint is close to the first outer splint, and the second inner splint is close to the second outer splint; a plurality of splint push-pull mechanisms are provided between the first outer splint, the first inner splint, the second inner splint and the second outer splint, and under the action of the splint push-pull mechanisms, the first outer splint and the first inner splint move closer to or away from each other, and the second outer splint and the second inner splint move closer to or away from each other.

[0009] Preferably, each splint push-pull mechanism includes a bushing, which includes a first bushing and a second bushing, one end of the first bushing is fixedly connected to the first outer splint, and the other end penetrates the first inner splint and is fixedly connected to the second inner splint; one end of the second bushing is fixedly connected to the second outer splint, and the other end penetrates the second inner splint and is fixedly connected to the first inner splint; under the action of the bushing, the first outer splint moves synchronously with the second inner splint, and the second outer splint moves synchronously with the first inner splint.

[0010] Preferably, each splint push-pull mechanism includes a bushing and a connecting rod shaft, the bushing includes a first bushing and a second bushing, and the connecting rod shaft includes a first connecting rod shaft and a second connecting rod shaft; one end of the first bushing is fixedly connected to the first outer splint, and the other end penetrates the first inner splint and abuts the second inner splint; one end of the second bushing is fixedly connected to the second outer splint, and the other end penetrates the second inner splint and abuts the first inner splint; the first connecting rod shaft penetrates the first bushing, one end of the first connecting rod shaft is fixedly connected to the first outer splint, and the other end penetrates the first inner splint and the second inner splint, and then slides In the first linear bearing seat, the upper end of the first linear bearing seat is fixedly connected to the fixing frame; the second connecting rod shaft penetrates the second bushing, one end is fixedly connected to the second outer clamping plate, and the other end penetrates the first inner clamping plate and the second inner clamping plate, and then slides in the second linear bearing seat, and the upper end of the second linear bearing seat is fixedly connected to the fixing frame; the first connecting rod shaft is provided with a boss adapted to the through hole of the second inner clamping plate, and drives the second inner clamping plate to move synchronously; the second connecting rod shaft is provided with a boss adapted to the through hole of the first inner clamping plate, and drives the first inner clamping plate to move synchronously.

[0011] Preferably, adjacent bushings and connecting rod shafts are arranged end to end in a staggered manner.

[0012] Preferably, the number of guide grooves and linkage mechanisms are both two, and the number of power cylinders is three groups, which are evenly distributed along the length direction of the fixing frame.

[0013] Preferably, a fixed grabbing plate is also provided on the top of the fixed frame.

[0014] After adopting the above technical solution, the beneficial technical effects achieved by the utility model are:

[0015] 1. Since multiple guide grooves are fixedly installed on the fixed frame, it can support the entire clamped workpiece. Each guide groove is provided with a first slide rail and a second slide rail, and a guide wheel is also provided in the guide groove. The first slide rail and the second slide rail are clamped between the upper and lower guide wheels; the ends of the first slide rail and the second slide rail are respectively used to fix the first bracket and the second bracket, so that the first bracket and the second bracket can slide smoothly under the action of the guide wheels in the guide groove, which is more stable than the clamping motion mechanism of multiple cranks. At the same time, with the telescopic rod that fixes the power cylinder through the cylinder pull rod, the first outer splint and the second outer splint can synchronously approach each other or move away from each other, and the synchronous movement of the splints on both sides will also be more efficient.

[0016] 2. Since multiple linkage mechanisms consisting of a linkage gear and two linkage racks are added between the first bracket and the second bracket, when the first bracket or the second bracket moves first, the installation accuracy of the power cylinder can be reduced through the synchronous movement of the linkage rack and the linkage gear. Even if the power cylinders on both sides move in sequence, the consistency of the movement distance of the clamping plates on both sides can be effectively guaranteed during the clamping process.

[0017] 3. The first inner clamping plate and the second inner clamping plate are arranged between the first outer clamping plate and the second outer clamping plate, and the first outer clamping plate and the second inner clamping plate are synchronously moved by a clamping plate push-pull mechanism, and the power of the first inner clamping plate and the second inner clamping plate also comes from the power cylinder on the top. In this way, when installing, the number of power parts can be smaller and the linkage is stronger, thereby reducing the number of power equipment used, and thus having strong stability.

[0018] 4. The first connecting rod shaft is sleeved in the first bushing, one end of the first connecting rod shaft is fixedly connected to the first outer clamping plate, and the other end is located in the first linear bearing. A boss adapted to the second inner clamping plate is also provided on the first connecting rod shaft. In the clamping state, the first bushing pushes the second inner clamping plate out a certain distance, and the distance between the second inner clamping plate and the second outer clamping plate is reduced, so that the material is clamped and fixed; when returning, the first outer clamping plate moves in the opposite direction, and the second inner clamping plate is forced to move synchronously with the first outer clamping plate through the dragging of the first connecting rod shaft. At this time, the distance between the second inner clamping plate and the second outer clamping plate increases, and the material is placed. The second outer clamping plate fixes the second connecting rod shaft, and the movement mode is the same as above. In this way, through the clamping plate push-pull structure, the same power source is ensured to achieve the synchronous movement of the first inner clamping plate and the second inner clamping plate, and because the first outer clamping plate, the first inner clamping plate, the second outer clamping plate and the second inner clamping plate are all movable, the movement stroke is doubled, the action is faster, and the scope of application is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the mutually pulling brick unloading clamp of the utility model in the state of waiting to be clamped;

[0020] Figure 2 It is a schematic diagram of the utility model of the mutual pulling brick unloading clamp in the clamping state;

[0021] Figure 3 yes Figure 2 Schematic diagram with some components hidden;

[0022] Figure 4 yes Figure 1 A front view of

[0023] Figure 5 yes Figure 4 A cross-sectional view of the middle structure;

[0024] Figure 6 yes Figure 5 Enlarged view of point A in the middle;

[0025] Figure 7 It is a cross-sectional view of a part of the structure of the mutual-pull brick unloading clamp in a clamping state;

[0026] Figure 8 yes Figure 7 Enlarged view of point B in the middle;

[0027] In the figure, 1, fixed frame; 11, power cylinder; 12, cylinder tie rod; 13, fixed grab plate;

[0028] 2. Guide groove; 21. First slide rail; 22. Second slide rail; 23. Guide wheel;

[0029] 3. First bracket; 31. First outer clamping plate; 32. First inner clamping plate;

[0030] 4. second bracket; 41. second outer clamping plate; 42. second inner clamping plate;

[0031] 5. linkage mechanism, 51. linkage gear; 52. linkage rack;

[0032] 6. Clamp push-pull mechanism; 61. First bushing; 62. First connecting rod shaft; 63. First linear bearing seat; 64. Second bushing; 65. Second connecting rod shaft; 66. Second linear bearing seat; 67. Boss. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0034] See also Figure 1-Figure 8 ,

[0035] Embodiment 1:

[0036] The utility model provides a mutually pulling brick unloading clamp, comprising a fixed frame 1 and a power cylinder 11 group; a plurality of guide grooves 2 are fixedly arranged on the fixed frame 1, a first slide rail 21 and a second slide rail 22 are arranged in each guide groove 2, a guide wheel 23 is also arranged in the guide groove 2, and the first slide rail 21 and the second slide rail 22 are clamped between the upper and lower guide wheels 23; the guide groove 2 has extremely high rigidity and is used to connect the fixed frame 1, a guide wheel 23 is arranged inside, the first slide rail 21 and the second slide rail 22 are of the same model, and after both ends extend out of the guide groove 2, one end is bent downward to fix the first bracket 3 and the second bracket 4 respectively, and in order to make the force more balanced, the generally bent parts are respectively located on both sides of the guide groove 2, and the first bracket 3 and the second bracket 4 can slide in the guide groove 2 through the guide wheel 23, mainly playing a supporting role.

[0037] A first bracket 3 is fixedly provided at the end of the first slide rail 21, and a second bracket 4 is provided on the side away from the first bracket 3, and the end of the second bracket 4 is fixedly connected to the second slide rail 22; the power cylinder 11 group includes several groups of power cylinders, each group of power cylinders includes two oppositely arranged power cylinders 11, the telescopic rods of the two power cylinders 11 are fixed by cylinder pull rods 12, and the cylinder bodies of the two power cylinders are respectively fixedly connected to the first bracket 3 or the second bracket 4 through their respective connecting seats; a first outer clamping plate 31 is fixedly provided on the first bracket 3, and a second outer clamping plate 41 is fixedly provided on the second bracket 4, and the working surfaces of the first outer clamping plate 31 and the second outer clamping plate 41 are arranged oppositely; driven by several groups of power cylinders, the first bracket 3 and the second bracket 4 approach or move away synchronously. The models of the power cylinders 11 are exactly the same. The cylinder body of each power cylinder 11 is hinged to the first bracket 3 or the second bracket 4. After the telescopic rod is fixed by the cylinder pull rod 12, it can drive the first outer clamping plate 31 and the second outer clamping plate 41 to move toward each other. At this time, the middle space of the first outer clamping plate 31 and the second outer clamping plate 41 is the clamping space.

[0038] A linkage mechanism 5 is also provided between the first bracket 3 and the second bracket 4 of the utility model. Each linkage mechanism 5 includes a linkage gear 51 and two linkage racks 52. The linkage gear 51 is rotatably mounted on the fixed frame 1. One end of each linkage rack 52 is meshed with the linkage gear 51 for transmission, and the other end is connected to the first bracket 3 or the second bracket 4 through a hinge seat. The linkage gear 51 is rotatably mounted on the fixed frame 1. In order to save space, the two linkage racks 52 are generally arranged symmetrically up and down, and the models and sizes of the two linkage racks 52 should be exactly the same. After installation, the consistency of the movement distance of the first outer clamping plate 31 and the second outer clamping plate 41 can be ensured by the number of teeth meshed when the linkage gear 51 and the linkage rack 52 move. In actual use, the first bracket 3, the second bracket 4 and the fixed frame 1 are all made of standard aluminum profiles. In this embodiment, the span between the first outer clamping plate 31 and the second outer clamping plate 41 is the largest, so it is suitable for clamping objects with larger volumes, such as large building bricks.

[0039] Embodiment 2:

[0040] This embodiment is based on the embodiment 1, and a first inner clamping plate 33 and a second inner clamping plate 42 are added, which is suitable for clamping and moving two groups of bricks at the same time.

[0041] The first inner clamping plate 32 and the second inner clamping plate 42 are also provided between the first outer clamping plate 31 and the second outer clamping plate 41 of the utility model; the first inner clamping plate 32 is close to the first outer clamping plate 31, and the second inner clamping plate 42 is close to the second outer clamping plate 41; a plurality of clamping plate push-pull mechanisms 6 are also provided between the first outer clamping plate 31, the first inner clamping plate 32, the second inner clamping plate 42 and the second outer clamping plate 41, and under the action of the clamping plate push-pull mechanisms 6, the first outer clamping plate 31 and the first inner clamping plate 32 are close to each other or away from each other, and the second outer clamping plate 41 and the second inner clamping plate 42 are close to each other or away from each other. The area between the first outer clamping plate 31 and the first inner clamping plate 32, and between the second outer clamping plate 41 and the second inner clamping plate 42 is the clamping working area, and all clamping power sources come from the power cylinder 11 at the top.

[0042] Each clamping plate push-pull mechanism 6 of the utility model includes a bushing, and the bushing includes a first bushing 61 and a second bushing 64. One end of the first bushing 61 is fixedly connected to the first outer clamping plate 31, and the other end penetrates the first inner clamping plate 32 and is fixedly connected to the second inner clamping plate 42; one end of the second bushing 64 is fixedly connected to the second outer clamping plate 41, and the other end penetrates the second inner clamping plate 42 and is fixedly connected to the first inner clamping plate 32; under the action of the bushing, the first outer clamping plate 31 and the second inner clamping plate 42 move synchronously, and the second outer clamping plate 41 and the first inner clamping plate 32 move synchronously. In this embodiment, the clamping plate push-pull mechanism 6 only uses a bushing, and one end of the first bushing 61 is fixedly connected to the first outer clamping plate 31, and the other end penetrates the first inner clamping plate 32 and is connected to the second inner clamping plate 42. The movement directions of the first outer clamping plate 31 and the second inner clamping plate 42 are consistent. Similarly, the second bushing 64 is of the same model as the first bushing 61, with one end fixedly connected to the second outer clamping plate 41, and the other end penetrating the second inner clamping plate 42 and connected to the first inner clamping plate 32. The second outer clamping plate 41 has the same movement direction as the first inner clamping plate 32, and cooperates with the linkage mechanism 5 to achieve synchronous clamping movement, and after transporting the material to the designated position, it is relaxed synchronously. The above structure has low cost, but has high requirements for the installation accuracy of the workpiece. If the installation accuracy does not meet the set requirements, it will cause uneven clamping force. In addition, in the above embodiment, the parts wear out quickly and are not easy to replace.

[0043] Embodiment 3:

[0044] This embodiment is based on the embodiment 2, and further improves the splint push-pull mechanism 6. Each splint push-pull mechanism 6 of the utility model includes a bushing and a connecting rod shaft, the bushing includes a first bushing 61 and a second bushing 64, and the connecting rod shaft includes a first connecting rod shaft 62 and a second connecting rod shaft 65; one end of the first bushing 61 is fixedly connected to the first outer splint 31, and the other end penetrates the first inner splint 32 and abuts the second inner splint 42; one end of the second bushing 64 is fixedly connected to the second outer splint 41, and the other end penetrates the second inner splint 42 and abuts the first inner splint 32; the first connecting rod shaft 62 penetrates the first bushing 61, one end of the first connecting rod shaft 62 is fixedly connected to the first outer splint 31, and the other end penetrates the first inner splint 32 and the second inner splint 42, Slide in the first linear bearing seat 63, the upper end of the first linear bearing seat 63 is fixedly connected to the fixing frame 1; the second connecting rod shaft 65 penetrates the second bushing 64, one end is fixedly connected to the second outer clamping plate 41, and the other end penetrates the first inner clamping plate 32 and the second inner clamping plate 42, and then slides in the second linear bearing seat 66, the upper end of the second linear bearing seat 66 is fixedly connected to the fixing frame 1; the first connecting rod shaft 62 is provided with a boss 67 adapted to the through hole of the second inner clamping plate 42, and drives the second inner clamping plate 42 to move synchronously; the second connecting rod shaft 65 is provided with a boss 67 adapted to the through hole of the first inner clamping plate 32, and drives the first inner clamping plate 32 to move synchronously. Based on Example 2, further improvements are made. Although some parts are added, it is not necessary to determine the installation position very accurately during the installation process, so the construction will be more convenient, and the subsequent replacement of parts as needed and daily maintenance will also be more convenient.

[0045] A first connecting rod shaft 62 is added in the first bushing 61, and a second connecting rod shaft 65 is added in the second bushing 64. The first connecting rod shaft 62 and the second connecting rod shaft 65 are of the same model. Figure 5 The cross-sectional view in the figure shows the second bushing 64 and the second connecting rod shaft 65. When the first bushing 61 moves to the left, it pushes the first inner clamping plate 32 to move to the left. At this time, the first inner clamping plate 32 and the first outer clamping plate 31 move towards each other to achieve the clamping and fixing of the brick-like workpiece. This process can be seen in Figure 7 The usage status Figure 5 After reaching the designated position, when the brick needs to be released, the first outer clamping plate 31 and the second outer clamping plate 41 move outward, driving the first connecting rod shaft 62 and the second connecting rod shaft 65 to move. At this time, the bosses 67 on the first connecting rod shaft 62 and the second connecting rod shaft 65 respectively generate a pulling force on the first inner clamping plate 32 and the second inner clamping plate 42, and then drive the first inner clamping plate 32 or the second inner clamping plate 42 to move synchronously until the end faces of the first inner clamping plate 32 and the second inner clamping plate 42 are close to each other, that is, from the attachment Figure 7 The state returns to the attached Figure 5In the utility model, the model of the first bushing 61 is exactly the same as that of the second bushing 64, the model of the first connecting rod shaft 62 is exactly the same as that of the second connecting rod shaft 65, and the model of the first slide rail 21 is exactly the same as that of the second slide rail 22. In this application, the first and second are divided only for the convenience of clear description. In short, during the above operation, the role of the bushing is to push out the first inner plate 32 or the second inner plate 42, and the connecting rod shaft pulls back the first inner plate 32 or the second inner plate 42 through the boss 67. The two have opposite effects, so better clamping and loosening effects can be achieved. The hollow bushing is to facilitate the storage of the connecting rod shaft to prevent motion interference.

[0046] The adjacent bushings and connecting rod shafts of the utility model are arranged in a staggered manner. The first bushing 61 and the first connecting rod shaft 62 are used to control the motion state of the second inner clamping plate 42, while the second bushing 64 and the second connecting rod shaft 65 are used to control the motion state of the first inner clamping plate 32, ensuring that the motion directions of the first inner clamping plate 32 and the second outer clamping plate 41 are consistent, and the motion directions of the second inner clamping plate 42 and the first outer clamping plate 31 are consistent. Staggered distribution makes the force more balanced and easier to control.

[0047] The number of guide slots 2 and linkage mechanisms 5 of the utility model are both two, and there are three groups of power cylinders, which are evenly distributed along the length direction of the fixed frame 1. There are generally three power cylinders, one is set in the middle of the fixed grab plate 13, and one is set at each end close to the fixed frame 1. In this way, the clamping force generated by the two linkage structures 5 will be more stable. The linkage structures are located on both sides of the middle power cylinder 11, symmetrically distributed, and balanced in force.

[0048] The top of the fixed frame 1 of the utility model is also provided with a fixed grabbing plate 13. The fixed grabbing plate 13 is generally used to connect a manipulator (not shown) to realize the handling of materials, and the fixed grabbing plate 13 is fixedly connected to the guide groove 2.

[0049] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A mutual pulling brick unloading fixture, characterized in that: Including a fixing frame and a power cylinder group; The fixed frame is fixedly provided with a plurality of guide grooves, each of which is provided with a first slide rail and a second slide rail, and a guide wheel is further provided in the guide groove, and the first slide rail and the second slide rail are clamped between two upper and lower guide wheels; a first bracket is fixedly provided at the end of the first slide rail, and a second bracket is provided at a side away from the first bracket, and an end of the second bracket is fixedly connected to the second slide rail; The power cylinder group includes a plurality of power cylinders, each power cylinder group includes two power cylinders arranged opposite to each other, the telescopic rods of the two power cylinders are fixed by a cylinder tie rod, and the cylinder bodies of the two power cylinders are respectively fixedly connected to the first bracket or the second bracket by respective connecting seats; A first outer clamping plate is fixedly disposed on the first bracket, and a second outer clamping plate is fixedly disposed on the second bracket, wherein working surfaces of the first outer clamping plate and the second outer clamping plate are arranged opposite to each other; Under the drive of several groups of the power cylinders, the first outer clamping plate and the second outer clamping plate move toward each other or away from each other synchronously.

2. The mutual pulling brick unloading fixture according to claim 1 is characterized in that: A linkage mechanism is also provided between the first bracket and the second bracket, and the linkage mechanism includes a linkage gear and two linkage racks. The linkage gear is rotatably installed on the fixed frame, one end of each linkage rack is meshed with the linkage gear for transmission, and the other end is connected to the first bracket or the second bracket through a hinge seat.

3. The mutual pulling brick unloading fixture according to claim 1 is characterized in that: A first inner splint and a second inner splint are also provided between the first outer splint and the second outer splint; the first inner splint is close to the first outer splint, and the second inner splint is close to the second outer splint; a plurality of splint push-pull mechanisms are also provided between the first outer splint, the first inner splint, the second inner splint and the second outer splint, and under the action of the splint push-pull mechanisms, the first outer splint and the first inner splint move closer to or away from each other, and the second outer splint and the second inner splint move closer to or away from each other.

4. The mutual pulling brick unloading fixture according to claim 3 is characterized in that: Each of the splint push-pull mechanisms includes a bushing, and the bushing includes a first bushing and a second bushing. One end of the first bushing is fixedly connected to the first outer splint, and the other end penetrates the first inner splint and is fixedly connected to the second inner splint; one end of the second bushing is fixedly connected to the second outer splint, and the other end penetrates the second inner splint and is fixedly connected to the first inner splint; under the action of the bushing, the first outer splint moves synchronously with the second inner splint, and the second outer splint moves synchronously with the first inner splint.

5. The mutual pulling brick unloading fixture according to claim 3 is characterized in that: Each of the clamp plate push-pull mechanisms comprises a bushing and a connecting rod shaft, wherein the bushing comprises a first bushing and a second bushing, and the connecting rod shaft comprises a first connecting rod shaft and a second connecting rod shaft; One end of the first bushing is fixedly connected to the first outer clamping plate, and the other end thereof penetrates the first inner clamping plate and abuts against the second inner clamping plate; one end of the second bushing is fixedly connected to the second outer clamping plate, and the other end thereof penetrates the second inner clamping plate and abuts against the first inner clamping plate; The first connecting rod shaft penetrates the first bushing, one end of the first connecting rod shaft is fixedly connected to the first outer clamping plate, and the other end of the first connecting rod shaft penetrates the first inner clamping plate and the second inner clamping plate, and then slides in the first linear bearing seat, and the upper end of the first linear bearing seat is fixedly connected to the fixing frame; The second connecting rod shaft penetrates the second bushing, one end of which is fixedly connected to the second outer clamping plate, and the other end of which penetrates the first inner clamping plate and the second inner clamping plate and then slides in the second linear bearing seat, and the upper end of the second linear bearing seat is fixedly connected to the fixing frame; The first connecting rod shaft is provided with a boss adapted to the through hole of the second inner plate, and drives the second inner plate to move synchronously; the second connecting rod shaft is provided with a boss adapted to the through hole of the first inner plate, and drives the first inner plate to move synchronously.

6. The mutual pulling brick unloading fixture according to claim 5 is characterized in that: The ends and tails of two adjacent bushings and the connecting rod shaft are arranged alternately.

7. The mutual pulling brick unloading fixture according to claim 2 is characterized in that: The number of the guide grooves and the linkage mechanism are both two, and the number of the power cylinders is three groups, which are evenly distributed along the length direction of the fixing frame.

8. The mutual pulling brick unloading fixture according to claim 1 is characterized in that: A fixed grabbing plate is also provided on the top of the fixed frame.

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