A linkage split clamping mechanism

Abstract

The present invention provides a linkage splitting clamping mechanism, including a clamping mechanism body, a splitter is arranged on the body, and a turntable is installed at the output end of the splitter; the body also includes a driving assembly and multiple groups of clamping assemblies arranged on the turntable, the driving assembly includes a driving unit, a first transmission part connected between the driving unit and the input end of the splitter, a driving part for driving the clamping assembly to open the clamping end, and a second transmission part connected between the driving unit and the driving part. The clamping assembly and the splitter are driven by the same driving source to perform linkage, and when in use, the opening and closing of the upper and lower material position clamping ends and the clamping of the working position are completed through timing setting, and the tooling opening and closing switching is perfectly realized during rotary splitting, so that the automation accuracy is higher, the action is more flexible, the efficiency is higher, the automation effect is better, and the overall cost of the mechanism is lower.

Description

Technical Field

[0001] The invention relates to the field of automation technology, and in particular to a linkage splitting clamping mechanism. Background Art

[0002] With the improvement of equipment automation, the requirements for equipment efficiency are getting higher and higher. In a turntable clamping and positioning device with publication number CN113145414B, the turntable and the clamping assembly are driven by different motors, which leads to inaccurate synchronization. After long-term use, calibration and synchronization are required, which affects processing efficiency, is not accurate enough, cannot fully meet customer requirements, and has a high cost increase.

[0003] In view of this, the applicant filed this application after studying the existing technology. Summary of the invention

[0004] The present invention provides a linkage split clamping mechanism, aiming to improve at least one of the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the present invention provides a linked splitting clamping mechanism, including a clamping mechanism body, a splitter is arranged on the body, and a turntable is installed at the output end of the splitter; the body also includes a driving assembly and a plurality of clamping assemblies arranged on the turntable, the driving assembly includes a driving unit, a first transmission part which is transmission-connected between the driving unit and the input end of the splitter, a driving part for driving the clamping assembly to open the clamping end, and a second transmission part which is transmission-connected between the driving unit and the driving part.

[0006] As a further optimization, the clamping assembly includes a base plate, a centering opening and closing block, two centering connecting rods, a first clamp block and a second clamp block. The base plate is installed on the turntable, the centering opening and closing block is slidably connected to the base plate, and the first clamp block and the second clamp block are respectively slidably connected to the base plate; the centering connecting rod is rotatably connected to the base plate through a connecting rod shaft, one end of the centering connecting rod is connected to the centering opening and closing block through a first follower bearing, and the other end is used to drive the first clamp block and the second clamp block.

[0007] As a further optimization, a second follower bearing is respectively installed on the first clamp and the second clamp; a follower groove is provided at the other end of the centering connecting rod, and the follower groove is adapted to be connected to the second follower bearing. When the centering connecting rod rotates, the follower groove can drive the second follower bearing to move in the follower groove, so that the centering connecting rod can drive the first clamp and the second clamp to move.

[0008] As a further optimization, a pull rod is fixed on the first clamping block and the second clamping block respectively, and a tension spring is connected between the two pull rods to enable the first clamping block and the second clamping block to approach each other and complete the clamping operation.

[0009] As a further optimization, the driving part includes a transmission shaft and an opening and closing cam, one end of the transmission shaft is fixedly connected to the opening and closing cam, and the other end is connected to the second transmission part. The opening and closing cam is located between multiple groups of clamping components. When the opening and closing cam rotates, its farthest end can drive the centering opening and closing block to move away from the center of the turntable.

[0010] As a further optimization, a third follower bearing is installed on the centering opening and closing block, and the third follower bearing is used to abut against the opening and closing cam.

[0011] As a further optimization, the second transmission part includes a rocker arm, a swing cam plate, a wobble plate and a rocker arm shaft, the rocker arm is hingedly arranged on the outside of the main body through the rocker arm shaft, the swing cam plate is coaxially arranged on the driving shaft of the driving unit, the wobble plate is coaxially connected to the transmission shaft, one end of the rocker arm is eccentrically connected to the swing cam plate, and the other end is eccentrically connected to the wobble plate.

[0012] As a further optimization, the clamping components are arranged on the turntable at equal intervals in a circumference.

[0013] As a further optimization, the clamping assembly is provided with 4 groups.

[0014] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0015] The application provides a linkage splitting clamping mechanism, including a clamping mechanism body, a splitter is arranged on the body, and a turntable is installed at the output end of the splitter; the body also includes a driving assembly and multiple groups of clamping assemblies arranged on the turntable, the driving assembly includes a driving unit, a first transmission part connected between the driving unit and the input end of the splitter, a driving part for driving the clamping assembly to open the clamping end, and a second transmission part connected between the driving unit and the driving part. The clamping assembly and the splitter are driven by the same driving source to cooperate and link. When in use, the opening and closing of the upper and lower material position clamping ends and the clamping of the working position are completed through timing setting, and the tooling opening and closing switching is perfectly realized during rotary splitting, so that the automation accuracy is higher, the action is more flexible, the efficiency is higher, the automation effect is better, and the overall cost of the mechanism is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a linkage split clamping mechanism of the present invention;

[0018] Figure 2 It is a left schematic diagram of a linkage split clamping mechanism of the present invention;

[0019] Figure 3 It is a rear side schematic diagram of a linkage split clamping mechanism of the present invention;

[0020] Figure 4 It is a front schematic diagram of a linkage split clamping mechanism of the present invention;

[0021] Figure 5 It is a front structural schematic diagram of the clamping assembly of the present invention;

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the clamping assembly of the present invention;

[0023] Figure 7 It is a schematic diagram of the internal structure of the present invention;

[0024] Figure 8 is a schematic diagram of a swing cam plate in an embodiment of the present invention;

[0025] Markings in the figure: 1. main body; 2. divider; 3. turntable; 4. clamping assembly; 5. driving unit; 6. first transmission part; 7. second transmission part; 8. base plate; 9. centering opening and closing block; 10. centering connecting rod; 11. first clamping block; 12. second clamping block; 13. connecting rod shaft; 14. first follower bearing; 15. second follower bearing; 16. third follower bearing; 17. follower groove; 18. pull rod; 19. tension spring; 20. transmission shaft; 21. opening and closing cam; 22. rocker arm; 23. swing cam disk; 24. rocker disk; 25. rocker arm shaft; a. upper material position; b. lower material position. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] Depend on Figures 1 to 8 As shown, an embodiment of the present invention provides a linkage splitting clamping mechanism, including a clamping mechanism body 1, a divider 2 is arranged on the body 1, and a turntable 3 is installed at the output end of the divider 2; the body 1 also includes a driving assembly and a plurality of clamping assemblies 4 arranged on the turntable 3, wherein the clamping assemblies 4 are arranged on the turntable 3 at equal intervals in a circle, and preferably, in this embodiment, 4 groups of clamping assemblies 4 are arranged. The driving assembly includes a driving unit 5, a first transmission part 6 connected between the driving unit 5 and the input end of the divider 2, a driving part for driving the clamping assembly 4 to open the clamping end, and a second transmission part 7 connected between the driving unit 5 and the driving part. The divider 2 and the clamping assembly 4 as a tooling are jointly driven by a driving motor to open and close, so that the action is more flexible and efficient, and the timing setting can make the cooperation between the two more adaptable and smooth.

[0028] Preferably, Figure 5 and 6 The clamping assembly 4 includes a base plate 8, a centering opening and closing block 9, two centering connecting rods 10, a first clamping block 11 and a second clamping block 12. The base plate 8 is installed on the turntable 3. The centering opening and closing block 9 is slidably connected to the base plate 8 by means of a slide rail. The centering opening and closing block 9 can move in the radial direction of the turntable 3. The first clamping block 11 and the second clamping block 12 are respectively slidably connected to the base plate 8 by means of a slide rail. In this embodiment, the moving directions of the two are perpendicular to the moving direction of the centering opening and closing block 9. The centering connecting rod 10 is rotatably connected to the base plate 8 by means of a connecting rod shaft 13. The centering connecting rod 10 is extended with the connecting rod shaft 13 as the axis to form two connecting ends. The two connecting ends are arranged at an acute angle, and one end of the two connecting ends is connected to the centering opening and closing block 9 by means of a first follower bearing 14, and the other end is used to drive the first clamping block 11 and the second clamping block 12. In this way, the centering connecting rod 10 is used as a transmission. When the centering opening and closing block 9 moves, the two clamping blocks are driven by the centering connecting rod 10.

[0029] Preferably, the first clamping block 11 and the second clamping block 12 are respectively provided with a second follower bearing 15; the other end of the centering connecting rod 10 is provided with a follower groove 17, and the follower groove 17 is adapted to be connected to the second follower bearing 15. When the centering connecting rod 10 rotates, the follower groove 17 can drive the second follower bearing 15 to move in the follower groove 17, so that the centering connecting rod 10 can drive the first clamping block 11 and the second clamping block 12 to move. When the first follower bearing 14 drives the centering connecting rod 10 to rotate upward, the second follower bearing 15 is guided by the follower groove 17 to move outward, thereby driving the two clamping blocks to separate and open the clamping ends. At this time, the clamping assembly 4 is also located at the loading position a, and the loading operation can be performed.

[0030] Preferably, in this embodiment, the driving part includes a transmission shaft 20 and an opening and closing cam 21, one end of the transmission shaft 20 is fixedly connected to the opening and closing cam 21, and the other end is connected to the second transmission part 7, and the opening and closing cam 21 is located between the multiple groups of clamping components 4, wherein a third follower bearing 16 is installed on the centering opening and closing block 9, and the third follower bearing 16 is used to abut against the opening and closing cam 21. When the opening and closing cam 21 rotates, its farthest end can abut against the third follower bearing 16 and push it outward, thereby driving the centering opening and closing block 9 to move in a direction away from the center of the turntable 3, thereby realizing the separation and opening of the first clamping block and the second clamping block for loading operation.

[0031] Preferably, a pull rod 18 is fixed to the first clamping block 11 and the second clamping block 12, respectively, and a tension spring 19 is connected between the two pull rods 18, so that the first clamping block 11 and the second clamping block 12 can approach each other and complete the clamping operation. In this embodiment, when the clamping end completes the loading, the opening and closing cam 21 and the third follower bearing 16 are also separated. Through the tension of the tension spring 19, the first clamping block and the second clamping block can be pulled close to and clamp the material on the clamping end, thereby realizing the opening and closing of the center, and the clamping assembly group is also rotated to the next station for processing.

[0032] As a preferred embodiment, the first transmission part 6 includes a bevel gear respectively connected to the driving shaft of the driving motor, and another bevel gear connected to the input shaft of the divider 2. The two bevel gears are meshed and transmitted so that the driving motor drives the divider 2. In this embodiment, the divider 2 adopts a hollow divider 2, and the output shaft of the divider 2 is hollow. The specific structural principle is the existing technology and will not be elaborated here. In this embodiment, the divider 2 is divided into 4 parts, and its input shaft rotates one circle, and the output shaft rotates by 90°, that is, the rotating disk can be unloaded to rotate to the loading position a.

[0033] Further, the second transmission part 7 includes a swing rod 22, a swing cam plate 23, a swing plate 24 and a swing rod shaft 25, wherein the swing rod 22 is hingedly arranged on the outside of the body 1 through the swing rod shaft 25, the swing cam plate 23 is coaxially arranged on the driving shaft of the driving unit 5, the swing plate 24 is coaxially connected to the transmission shaft 20, one end of the swing rod 22 is eccentrically connected to the swing cam plate 23, and the other end is eccentrically connected to the swing plate 24, and in this embodiment, it is connected to the eccentric follower bearing on the swing plate 24 through a groove. Among them, one end of the transmission shaft 20 passes through the output shaft of the divider 2 and is connected to the opening and closing cam 21, and the other end is transmission-connected to the second transmission part 7. Preferably, the swing cam plate 23 is constructed as a wheel structure provided with a cam track groove, and the end of the rocker arm 22 is adapted to the track groove through a bearing. When the driving shaft of the driving motor drives the swing cam plate 23 to rotate, it can drive the rocker arm 22 to swing back and forth, and then the other end of the rocker arm 22 can also drive the rocker plate 24 to swing back and forth. The rocker plate 24 drives the transmission shaft 20 to rotate, and then drives the opening and closing cam 21 to swing. Finally, the opening and closing cam 21 is abutted against the third follower bearing 16 to drive it to move up and down, thereby making the clamping end open and close. In this embodiment, there are 4 groups of clamping components 4, and the adjacent clamping components 4 are spaced 90 degrees apart. The opening and closing cam 21 is located between the loading position a and the unloading position b. When the clamping component is located at the loading position a, the driving unit drives it to open the clamping end to load the material, and then the driving unit returns to its position. The clamping end of the loading position a clamps the material and rotates to the next station with the turntable 3. At the same time, before the turntable 3 rotates, the returning driving unit simultaneously rotates and drives the clamping end of the clamping component 4 of the unloading position b to open the material, and then the turntable 3 rotates to move it to the loading position a. In this way, the upper and lower material positions b are opened and closed and the working position is clamped, and the tooling opening and closing switching is perfectly realized during the rotation segmentation. In this way, by driving the clamping component and the divider by the same driving source, they are coordinated and linked. When used, different numbers of clamping components are linked and coordinated through dividers with different segmentation ratios on the market, so that the tooling opening and closing switching can be perfectly realized when the divider is rotated and segmented, so that the automation accuracy is higher.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A linkage splitting clamping mechanism, comprising a clamping mechanism body, on which a splitter is provided, characterized in that: A turntable is installed at the output end of the divider; the main body also includes a driving assembly and multiple groups of clamping assemblies arranged on the turntable, the driving assembly includes a driving unit, a first transmission part connected between the driving unit and the input end of the divider, a driving part for driving the clamping assembly to open the clamping end, and a second transmission part connected between the driving unit and the driving part.

2. According to claim 1, a linkage split clamping mechanism is characterized in that The clamping assembly includes a base plate, a centering opening and closing block, two centering connecting rods, a first clamping block and a second clamping block. The base plate is installed on the turntable, the centering opening and closing block is slidably connected to the base plate, and the first clamping block and the second clamping block are respectively slidably connected to the base plate; the centering connecting rod is rotatably connected to the base plate through a connecting rod shaft, one end of the centering connecting rod is connected to the centering opening and closing block through a first follower bearing, and the other end is used to drive the first clamping block and the second clamping block.

3. A linkage split clamping mechanism according to claim 2, characterized in that The first clamping block and the second clamping block are respectively installed with a second follower bearing; the other end of the centering connecting rod is provided with a follower groove, and the follower groove is adapted to be connected to the second follower bearing. When the centering connecting rod rotates, the follower groove can drive the second follower bearing to move in the follower groove, so that the centering connecting rod can drive the first clamping block and the second clamping block to move.

4. A linkage split clamping mechanism according to claim 2, characterized in that The first clamping block and the second clamping block are respectively fixed with pull rods, and a tension spring is connected between the two pull rods so that the first clamping block and the second clamping block can approach each other and complete the clamping operation.

5. A linkage split clamping mechanism according to claim 2, characterized in that The driving part includes a transmission shaft and an opening and closing cam. One end of the transmission shaft is fixedly connected to the opening and closing cam, and the other end is connected to the second transmission part. The opening and closing cam is located between multiple groups of clamping components. When the opening and closing cam rotates, its farthest end can drive the centering opening and closing block to move away from the center of the turntable.

6. A linkage split clamping mechanism according to claim 5, characterized in that A third follower bearing is installed on the centering opening and closing block, and the third follower bearing is used to abut against the opening and closing cam.

7. A linkage split clamping mechanism according to claim 5, characterized in that The second transmission part includes a rocker arm, a swing cam plate, a swing plate and a rocker arm shaft. The rocker arm is hingedly arranged on the outside of the main body through the rocker arm shaft. The swing cam plate is coaxially arranged on the driving shaft of the driving unit. The swing plate is coaxially connected to the transmission shaft. One end of the rocker arm is eccentrically connected to the swing cam plate, and the other end is eccentrically connected to the swing plate.

8. The linkage split clamping mechanism according to claim 1 is characterized in that The clamping components are arranged on the turntable at equal intervals in a circle.

9. The linkage split clamping mechanism according to claim 1 is characterized in that , the clamping assembly is provided with 4 groups.

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