Clamp for automatic arm
By designing an automatic arm fixture with multiple clamping means, combining the centering clamping assembly, material suction assembly and vacuum tube, the problem of the clamping in the prior art being difficult to compatible with objects of different sizes and shapes is solved, and higher adaptability and stability are achieved, and service life is extended.
Patent Information
- Application Number
- CN202420319115.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-21
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-02-21
AI Technical Summary
When existing automatic arm fixtures clamp objects of different sizes and shapes, due to the maximum and minimum spacing of the clamps on both sides of the fixture, it is difficult to be compatible with larger or special shape objects, and the stability of the centering clamping method is insufficient.
An automatic arm fixture is designed, which adopts multiple clamping means, including a centering clamping assembly and a suction assembly, drives the clamp movement through a motor drive gear and rack, and combines the vacuum tube and suction cup to achieve stable clamping of different objects.
The fixture is compatible with the clamping of a variety of objects, including general objects and special shapes, such as glass or cylindrical structures, which improves the adaptability and stability of the fixture, extends the service life, and avoids the risk of impact damage of the fixture.
Smart Images
Figure CN222537680U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamps, in particular to a clamp for an automatic arm. Background Art
[0002] An autonomous arm is a mechanical arm that can perform tasks autonomously. It is usually composed of multiple joints and connectors and can perform various movements and operations. The autonomous arm can sense and respond to changes in the environment through programming or sensors, and adjust and control as needed.
[0003] The gripper of an automatic arm is a tool installed at the end of the arm, used to clamp, fix or manipulate objects. The design and function of the gripper depend on the specific application requirements and can have various forms and types.
[0004] However, existing automatic arms mostly use the method of centering the object to achieve the clamping operation, and the operation of the automatic arm usually requires clamping different objects. The centering clamping method is limited by the maximum and minimum spacing of the clamping plates on both sides of the clamp, and cannot clamp larger objects. However, the centering clamping method has certain advantages in stability. Therefore, it is necessary to propose a clamp for an automatic arm that can simultaneously realize multiple functions. Utility Model Content
[0005] The purpose of the utility model is to provide a clamp for an automatic arm to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0007] A clamp for an automatic arm comprises an automatic arm main body, a motor is fixedly installed on the top of the movable end of the automatic arm main body, a shell is fixedly connected to the bottom of the movable end of the automatic arm main body, a centering clamping assembly is arranged inside the shell, the centering clamping assembly is used to center clamp an object, two centrally symmetrical suction assemblies are arranged inside the shell, the suction assemblies are used to adsorb objects, a buffer assembly is arranged on the outside of the automatic arm main body, the buffer assembly is used to prevent the clamp from being damaged by impact when clamping an object; the suction assembly comprises a piston cylinder, the piston cylinder is fixedly connected to one side of the inner wall of the shell, a piston plate is slidably connected between the inner walls of the piston cylinder, a vacuum tube is fixedly connected to the outside of the piston cylinder, the end of the vacuum tube away from the piston cylinder extends to the bottom of the shell and is fixedly connected to a suction cup, the outside of the piston plate is fixedly connected to a piston rod, and the piston plate and the centering clamping assembly are linked through the piston rod.
[0008] By adopting the above technical solution, by setting up multiple clamping means, when it is necessary to clamp a general object, the object can be picked up by centering the object through the centering clamping assembly. When it is necessary to clamp a special object, including glass or cylindrical structures, air is pumped through the vacuum tube so that the suction cup sucks the object and the object is picked up.
[0009] A further improvement of the technical solution of the utility model is that: the centering clamping assembly includes a gear, which is rotatably connected to the top of the inner wall of the shell, the output end of the motor extends to the inside of the shell and is fixedly connected to the central axis of the gear, guide rods are symmetrically fixedly connected between the inner walls of the shell, the outer sides of the guide rods are slidably connected with racks, the racks are evenly meshed with gears, the bottoms of the racks are fixedly connected with follower rods, two strip grooves are provided at the bottom of the shell, the bottoms of the follower rods extend to the bottom of the shell through the strip grooves and are fixedly connected with splints, the outer sides of the follower rods are slidably connected to the inner walls of the strip grooves, a linkage plate is fixedly connected between the racks and the piston rod, and the guide rods are set as square rods.
[0010] By adopting the above technical solution, the motor is controlled to drive the gear to rotate, thereby driving the two racks to move toward the side close to each other. At the same time, the two clamping plates are driven to move toward the side close to each other through two follower rods to clamp the object in the center.
[0011] A further improvement of the technical solution of the utility model is that: a rubber pad is arranged on one side of the clamping plates that are close to each other, and a serrated pattern is arranged on the outer side of the rubber pad.
[0012] The above technical solution is adopted to facilitate more stable clamping of objects and prevent slipping during the clamping process.
[0013] A further improvement of the technical solution of the utility model is that a reinforcing plate is fixedly connected between the outer side of the clamping plate and the outer side of the follower rod.
[0014] By adopting the above technical solution, the reinforcing plate can structurally reinforce the clamping plate and follower rod assembly through its pyramid structure.
[0015] A further improvement of the technical solution of the utility model is that the buffer assembly includes multiple sliding rods, which are slidably connected to the top of the shell, the bottoms of the sliding rods extend to the bottom of the shell and are fixedly connected to pressure plates, the outside of the sliding rods and the inside of the shell are fixedly connected to pads, and springs are applied to the outside of the sliding rods and the inside of the shell.
[0016] By adopting the above technical solution, before the suction cup contacts the object, the pressure plate will contact the object in advance to provide buffering and protection.
[0017] A further improvement of the technical solution of the utility model is that a filter screen is arranged inside the vacuum tube.
[0018] By adopting the above technical solution, dust can be prevented from entering when the vacuum tube is evacuating air.
[0019] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0020] 1. The utility model provides a clamp for an automatic arm. By setting a plurality of clamping means, when it is necessary to clamp a general object, the motor is controlled to drive the gear to rotate, thereby driving the two racks to move toward the side close to each other, and at the same time, the two clamping plates are driven to move toward the side close to each other through two follower rods to clamp the object in the center. When it is necessary to clamp a special object, including glass or a cylindrical structure, air is evacuated through a vacuum tube so that the suction cup absorbs the object and the object is picked up. In this way, the clamp has strong adaptability and can be compatible with the clamping of various objects, which is beneficial to practical applications.
[0021] 2. The utility model provides a clamp for an automatic arm. By arranging a buffer component, the pressure plate will contact the object in advance before the suction cup contacts the object, and press the spring through the pad, so as to reduce the reaction force of the object on the vacuum tube when the clamp moves downward to absorb the object, thereby protecting the clamp and avoiding damage to the clamp by collision, thereby greatly improving the service life of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;
[0023] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;
[0024] Figure 3 This is one of the schematic diagrams of the internal structure of the shell of the utility model;
[0025] Figure 4 This is the second schematic diagram of the internal structure of the housing of the utility model;
[0026] Figure 5 For the utility model Figure 2 Enlarged view of point A in the middle.
[0027] In the figure: 1. Automatic arm body; 2. Motor; 3. Shell; 4. Guide rod; 5. Gear; 6. Rack; 7. Piston cylinder; 8. Piston plate; 9. Piston rod; 10. Linkage plate; 11. Vacuum tube; 12. Suction cup; 13. Filter; 14. Follow-up rod; 15. Clamp; 16. Rubber pad; 17. Reinforcement plate; 18. Strip groove; 19. Sliding rod; 20. Pad; 21. Spring; 22. Pressure plate. DETAILED DESCRIPTION
[0028] The present invention is further described in detail below in conjunction with the embodiments:
[0029] Example 1
[0030] like Figure 1 and Figure 2 As shown, the utility model provides a clamp for an automatic arm, including an automatic arm main body 1, a motor 2 is fixedly installed on the top of the movable end of the automatic arm main body 1, a shell 3 is fixedly connected to the bottom of the movable end of the automatic arm main body 1, a centering clamping assembly is arranged inside the shell 3, and the centering clamping assembly is used to center clamp the object, two centrally symmetrical suction assemblies are arranged inside the shell 3, and the suction assemblies are used to adsorb objects, and a buffer assembly is arranged on the outside of the automatic arm main body 1, and the buffer assembly is used to prevent the clamp from being damaged by impact when clamping the object; the suction assembly includes a piston cylinder 7, the piston cylinder 7 is fixedly connected to one side of the inner wall of the shell 3, a piston plate 8 is slidably connected between the inner walls of the piston cylinder 7, a vacuum tube 11 is fixedly connected to the outside of the piston cylinder 7, the vacuum tube 11 extends to the bottom of the shell 3 away from the end of the piston cylinder 7 and is fixedly connected to a suction cup 12, and a piston rod 9 is fixedly connected to the outside of the piston plate 8, and the piston plate 8 and the centering clamping assembly are linked through the piston rod 9.
[0031] In this embodiment, by setting up multiple clamping means, when it is necessary to clamp an object with a size between the minimum distance and the maximum distance between the two clamping plates 15, the motor 2 is controlled to drive the gear 5 to rotate, and then drive the two racks 6 to move toward the side close to each other. At the same time, the two follower rods 14 drive the two clamping plates 15 to move toward the side close to each other, so as to clamp the object in the center. When it is necessary to clamp special objects, including glass or cylindrical structures, air is evacuated through the vacuum tube 11, so that the suction cup 12 sucks the object and completes the object picking up.
[0032] The suction cup 12 is located below the centering clamping assembly.
[0033] In this embodiment, when the suction cup 12 is used to absorb an object, the bottom of the suction cup 12 can first contact the object, and then the absorption can be completed without causing the clamping plate 15 to hit the object.
[0034] like Figure 3 and Figure 5 As shown, preferably, a filter screen 13 is provided inside the vacuum tube 11 .
[0035] In this embodiment, dust can be prevented from entering when the vacuum tube 11 is evacuating air.
[0036] Example 2
[0037] like Figure 3 and Figure 4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the centering clamping assembly includes a gear 5, which is rotatably connected to the top of the inner wall of the shell 3, the output end of the motor 2 extends to the inside of the shell 3 and is fixedly connected to the central axis of the gear 5, the inner walls of the shell 3 are symmetrically fixedly connected with guide rods 4, the outer sides of the guide rods 4 are slidably connected with racks 6, the racks 6 are evenly meshed with the gears 5, the bottoms of the racks 6 are fixedly connected with follower rods 14, two strip grooves 18 are provided at the bottom of the shell 3, the bottoms of the follower rods 14 extend to the bottom of the shell 3 through the strip grooves 18 and are fixedly connected with clamps 15, the outer sides of the follower rods 14 are slidably connected to the inner walls of the strip grooves 18, a linkage plate 10 is fixedly connected between the racks 6 and the piston rod 9, and the guide rods 4 are configured as square rods.
[0038] In this embodiment, the automatic arm is controlled to center the object and lower the clamp so that the object is located between the two clamps 15. The motor 2 is controlled to rotate the gear 5, which in turn drives the two racks 6 to move toward the side that is close to each other. At the same time, the two follower rods 14 drive the two clamps 15 to move toward the side that is close to each other, so that the object is clamped in the center.
[0039] like Figure 1 and Figure 2 As shown, preferably, a rubber pad 16 is provided on each side of the clamping plates 15 that are close to each other, and a serrated pattern is provided on the outer side of the rubber pad 16 .
[0040] In this embodiment, it is convenient to clamp the object more stably and prevent slipping during the clamping process.
[0041] like Figure 1 and Figure 5 As shown, preferably, a reinforcing plate 17 is fixedly connected between the outer side of the clamping plate 15 and the outer side of the follower rod 14 .
[0042] In this embodiment, when the clamping plate 15 clamps an object, the reinforcing plate 17 can structurally reinforce the assembly of the clamping plate 15 and the follower rod 14 through its pyramid structure.
[0043] Example 3
[0044] like Figure 3 and Figure 4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the buffer assembly includes multiple sliding rods 19, the sliding rods 19 are all slidably connected to the top of the shell 3, the bottoms of the sliding rods 19 extend to the bottom of the shell 3 and are fixedly connected to a pressure plate 22, the outer side of the sliding rods 19 and the inside of the shell 3 are fixedly connected to a pad 20, and the outer side of the sliding rods 19 and the inside of the shell 3 are covered with springs 21.
[0045] In this embodiment, before the suction cup 12 contacts the object, the pressure plate 22 contacts the object in advance and presses the spring 21 through the pad 20, thereby reducing the reaction force of the object on the vacuum tube 11 when the clamp moves downward to absorb the object, thereby protecting the clamp.
[0046] The pressing plate 22 is located below the suction cup 12 .
[0047] The working principle of the clamp for the automatic arm is described in detail below.
[0048] When it is necessary to clamp a general object, the automatic arm is controlled to center the object and lower the clamp so that the object is located between the two clamping plates 15. The motor 2 is controlled to work to drive the gear 5 to rotate, thereby driving the two racks 6 to move toward the side close to each other. At the same time, the two follower rods 14 drive the two clamping plates 15 to move toward the side close to each other, so as to clamp the object in the center. During this process, the piston cylinder 7 inhales air through the vacuum tube 11 but does not produce any effect. When it is necessary to release the object, it can be achieved by controlling the motor 2 to reverse. When it is necessary to clamp special objects, including glass or cylindrical structures, the clamp If the spacing between plates 15 is insufficient or the clamping is unstable, at this time, the suction cup 12 can be placed facing the object, and the operation of centering the clamping assembly can be repeated to drive the linkage plate 10 to move through the rack 6, and then the piston plate 8 can be driven to move through the piston rod 9, and then the vacuum tube 11 is used to evacuate air, so that the suction cup 12 can hold the object and complete the object picking up. Before the suction cup 12 contacts the object, the pressure plate 22 will contact the object in advance and press the spring 21 through the pad 20, so as to reduce the reaction force of the object on the vacuum tube 11 when the clamp moves downward to absorb the object, thereby protecting the clamp.
[0049] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.
Claims
1. A clamp for an automatic arm, comprising an automatic arm body (1), characterized in that: A motor (2) is fixedly mounted on the top of the movable end of the automatic arm body (1); a shell (3) is fixedly connected to the bottom of the movable end of the automatic arm body (1); a centering clamping assembly is arranged inside the shell (3); the centering clamping assembly is used to center clamp an object; two suction assemblies are arranged inside the shell (3); the suction assemblies are used to absorb objects; a buffer assembly is arranged on the outside of the automatic arm body (1); the buffer assembly is used to prevent the clamp from being damaged by impact when clamping an object; The suction assembly comprises a piston cylinder (7), wherein the piston cylinder (7) is fixedly connected to one side of the inner wall of the shell (3), a piston plate (8) is slidably connected between the inner walls of the piston cylinder (7), a vacuum tube (11) is fixedly connected to the outer side of the piston cylinder (7), an end of the vacuum tube (11) away from the piston cylinder (7) extends to the bottom of the shell (3) and is fixedly connected to a suction cup (12), a piston rod (9) is fixedly connected to the outer side of the piston plate (8), and the piston plate (8) and the centering clamping assembly are linked via the piston rod (9).
2. The clamp for an automatic arm according to claim 1, characterized in that: The centering clamping assembly comprises a gear (5), wherein the gear (5) is rotatably connected to the top of the inner wall of the housing (3), the output end of the motor (2) extends to the inside of the housing (3) and is fixedly connected to the central axis of the gear (5), the inner walls of the housing (3) are symmetrically fixedly connected with guide rods (4), the outer sides of the guide rods (4) are slidably connected with racks (6), the racks (6) are evenly meshed with the gears (5), the bottoms of the racks (6) are fixedly connected with follower rods (14), the bottom of the housing (3) is provided with two strip grooves (18), the bottoms of the follower rods (14) extend to the bottom of the housing (3) through the strip grooves (18) and are fixedly connected with a clamping plate (15), the outer sides of the follower rods (14) are slidably connected with the inner walls of the strip grooves (18), a linkage plate (10) is fixedly connected between the racks (6) and the piston rod (9), and the guide rods (4) are configured as square rods.
3. The clamp for an automatic arm according to claim 2, characterized in that: A rubber pad (16) is provided on the adjacent side of the clamping plates (15), and a sawtooth pattern is provided on the outer side of the rubber pad (16).
4. The clamp for an automatic arm according to claim 2, characterized in that: A reinforcing plate (17) is fixedly connected between the outer side of the clamping plate (15) and the outer side of the follower rod (14).
5. The clamp for an automatic arm according to claim 1, characterized in that: The buffer assembly comprises a plurality of slide bars (19), each of which is slidably connected to the top of the shell (3), the bottom of each of which extends to the bottom of the shell (3) and is fixedly connected to a pressure plate (22), the outer side of each of the slide bars (19) and located inside the shell (3) are fixedly connected to a pad (20), and the outer side of each of the slide bars (19) and located inside the shell (3) are covered with a spring (21).
6. The clamp for an automatic arm according to claim 1, characterized in that: A filter screen (13) is provided inside the vacuum tube (11).