Robot clamp

Abstract

The utility model discloses a robot clamp, and relates to the technical field of machine manufacturing. The device comprises a disc, an air cylinder is fixedly installed in the middle of the disc, the driving end of the air cylinder penetrates through the disc, a cylinder is fixedly installed at the driving end of the air cylinder, and three first half-trapezoid blocks which are annularly and evenly distributed are fixedly installed outside the cylinder. Second half-trapezoid blocks used in cooperation with the first half-trapezoid blocks are arranged on the lower surface of the disc, clamping plates are fixedly installed on the edges of the bottom ends of the second half-trapezoid blocks, and clamping blocks are fixedly installed on the sides, away from the cylinder, of the first half-trapezoid blocks. A clamping groove used in cooperation with the clamping block is formed in the side, close to the cylinder, of each second half-trapezoid block, and a T-shaped block is fixedly installed at the top end of each second half-trapezoid block. The nut clamping device can clamp the nut without corresponding to the corner of the nut, so that the machining efficiency of a workshop is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a robot fixture. Background Art

[0002] The authorized announcement number "CN211137184U" discloses a robot fixture, which specifically relates to the technical field of mechanical manufacturing. It includes a fixture body, and the fixture body includes a first jaw, a second jaw, a first guide block, a second guide block and a top plate. A first clamping groove is arranged on one side of the first jaw, and a first fixing hole is arranged through one end of the bottom of the first jaw. A second clamping groove is arranged on one side of the second jaw, and a second fixing hole is arranged through one end of the bottom of the second jaw. The first guide block is arranged on the top of the first jaw. By providing a fixture body composed of structures such as a first jaw, a second jaw, a first guide block, a second guide block and a top plate, the utility model can improve the accuracy of the fixture for clamping nuts. When the robot clamps nuts, it can only clamp one nut, avoiding damage to the nuts, thus ensuring the normal production of the workshop robot and being beneficial to improving the processing efficiency of the workshop;

[0003] However, when the above technology clamps the nut, it still needs to correspond to the edges and corners of the nut to clamp the nut, which reduces the processing efficiency of the workshop. Summary of the Utility Model

[0004] In order to solve the problem that it still needs to correspond to the edges and corners of the nut to clamp the nut, which reduces the processing efficiency of the workshop; the purpose of the utility model is to provide a robot fixture.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: A robot fixture includes a disc, a cylinder is fixedly installed in the middle of the disc, the driving end of the cylinder penetrates through the disc, a cylinder is fixedly installed at the driving end of the cylinder, three first semi-trapezoidal blocks are fixedly installed on the outside of the cylinder in a uniformly distributed annular manner, a second semi-trapezoidal block is arranged on the lower surface of the disc and is used in cooperation with the first semi-trapezoidal block, a clamping plate is fixedly installed at the bottom edge of the second semi-trapezoidal block, a clamping block is fixedly installed on one side of each first semi-trapezoidal block away from the cylinder, a clamping groove for cooperating with the clamping block is arranged on one side of each second semi-trapezoidal block close to the cylinder, a T-shaped block is fixedly installed at the top of each second semi-trapezoidal block, and a T-shaped groove for cooperating with the T-shaped block is arranged at the bottom of the disc. A top plate is arranged on the upper surface of the disc, and two groups of symmetrically distributed sleeves are fixedly installed at the bottom end of the top plate.

[0006] Preferably, a cylinder for cooperating with the sleeve is fixedly installed at the top end of the disc. Two groups of fixing plates are symmetrically distributed and fixedly installed at the top end of the disc. A double-headed screw with opposite thread directions at both ends penetrates through the top of each group of fixing plates. The two double-headed screws have the same thread. Two symmetrically distributed moving plates are threadedly connected to the outer side of the double-headed screw. A clamping column is fixedly installed on the outer side of the moving plate. A first column groove for cooperating with the clamping column is formed through the middle of the cylinder. A second column groove for cooperating with the first column groove is formed through the bottom of the sleeve.

[0007] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0008] 1. This application can clamp the nut without corresponding to the edges and corners of the nut, improving the processing efficiency in the workshop;

[0009] 2. This application is simple to operate, facilitating the fixation of the top disc and the disc together, and improving the installation and disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0011] Figure 1 It is a schematic structural diagram of the present utility model.

[0012] Figure 2 It is a schematic structural diagram of the connection between the clamping block and the clamping groove in the present utility model.

[0013] Figure 3 It is a schematic structural diagram of the connection between the double-headed screw and the moving plate in the present utility model.

[0014] Figure 4 For the present utility model Figure 3 An enlarged view of part A.

[0015] Figure 5 It is a schematic structural diagram of the connection between the spring and the circular groove in the present utility model.

[0016] Figure 6 It is a schematic structural diagram of the connection between the clamping column and the first column groove in the present utility model.

[0017] In the figure: 1. Disc; 11. Cylinder; 12. Cylinder; 13. First half trapezoidal block; 14. Second half trapezoidal block; 15. Clamping plate; 16. Clamping block; 17. Card slot; 18. T-shaped block; 19. T-shaped groove; 2. Top plate; 21. Sleeve; 22. Cylinder; 23. Fixed plate; 24. Double-headed screw; 25. Moving plate; 26. Clamping column; 27. First column groove; 28. Second column groove; 4. Circular groove; 41. Spring; 42. Movable rod; 5. First bevel gear; 51. Second bevel gear; 52. Rotating shaft; 53. Fixed seat; 54. Motor; 6. Limit rod; 7. Fixed rod; 71. First fixed groove; 72. Second fixed groove; 8. Slide block; 81. Slide groove. Detailed implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment: As Figures 1-6 shown, the present invention provides a robot fixture, including a disc 1. A cylinder 11 is fixedly installed in the middle of the disc 1. The driving end of the cylinder 11 penetrates the disc 1. A cylinder 12 is fixedly installed at the driving end of the cylinder 11. Three first half trapezoidal blocks 13 are fixedly installed on the outside of the cylinder 12 in a uniformly distributed annular manner. A second half trapezoidal block 14 is provided on the lower surface of the disc 1 and is used in cooperation with the first half trapezoidal block 13. A clamping plate 15 is fixedly installed at the bottom edge of the second half trapezoidal block 14. A clamping block 16 is fixedly installed on the side of each first half trapezoidal block 13 away from the cylinder 12. A card slot 17 for cooperating with the clamping block 16 is opened on the side of each second half trapezoidal block 14 close to the cylinder 12. A T-shaped block 18 is fixedly installed at the top of each second half trapezoidal block 14. A T-shaped groove 19 for cooperating with the T-shaped block 18 is opened at the bottom of the disc 1. A top plate 2 is provided on the upper surface of the disc 1. Two groups of symmetrically distributed sleeves 21 are fixedly installed at the bottom of the top plate 2.

[0020] A cylinder 22 for cooperating with the sleeve 21 is fixedly installed at the top of the disc 1. Two groups of symmetrically distributed fixed plates 23 are fixedly installed at the top of the disc 1. A double-headed screw 24 with opposite threads at both ends penetrates through the top of each group of fixed plates 23. The two double-headed screws 24 have the same thread. Two symmetrically distributed moving plates 25 are threadedly connected to the outside of the double-headed screw 24. A clamping column 26 is fixedly installed on the outside of the moving plate 25. A first column groove 27 for cooperating with the clamping column 26 is penetrated and opened in the middle of the cylinder 22. A second column groove 28 for cooperating with the first column groove 27 is penetrated and opened at the bottom of the sleeve 21.

[0021] On the inner side of each clamping plate 15, a number of circular grooves 4 are arranged in a rectangular distribution. A spring 41 is fixedly installed on the inner wall of the circular groove 4. On the side of the spring 41 away from the clamping plate 15, a movable rod 42 is fixedly installed. By setting the spring 41 and the movable rod 42, when the nut contacts the movable rod 42, due to the edges and corners of the nut and at the same time through the contraction of the cylinder 11, the spring 41 contracts, and each movable rod 42 fits more closely to the edge of the nut, so that it is more convenient to pick up the nut.

[0022] One end of each double-headed screw rod 24 is fixedly installed with a first bevel gear 5. The outside of the first bevel gear 5 is meshed with a second bevel gear 51 with the same rotation direction. The middle of the second bevel gear 51 is fixedly installed with a rotating shaft 52. The outside of the rotating shaft 52 is rotatably sleeved with two symmetrically distributed fixed seats 53, and the fixed seats 53 are fixed on the disc 1. By setting the rotating shaft 52, when the rotating shaft 52 rotates, it drives the first bevel gear 5 to rotate, thereby driving the second bevel gear 51 and the corresponding double-headed screw rod 24 to rotate. As the double-headed screw rod 24 rotates, it drives the moving plate 25 and the clamping column 26 to move towards both sides, so that the two double-headed screw rods 24 can drive the moving plate 25 and the clamping column 26 to move towards both sides or towards the middle at the same time.

[0023] A motor 54 is fixedly installed at the top edge of the disc 1. The driving end of the motor 54 is fixedly installed at the end of the rotating shaft 52. By setting the motor 54, when the motor 54 is started, it drives the rotating shaft 52 and the second bevel gear 51 to rotate, thereby driving the corresponding first bevel gear 5 and double-headed screw rod 24 to rotate.

[0024] A limiting rod 6 is fixedly installed between each group of fixing plates 23. The moving plate 25 slides outside the limiting rod 6. By setting the limiting rod 6, the moving plate 25 is limited to prevent the moving plate 25 from rotating as the double-headed screw rod 24 rotates, which affects the movement of the moving plate 25 driving the clamping column 26.

[0025] A number of fixing rods 7 are fixedly installed on the outside of each clamping column 26 in an annular and evenly distributed manner. A first fixing groove 71 for cooperating with the fixing rod 7 is penetrated and opened at the middle position of each cylinder 22 at the position of the first column groove 27. A second fixing groove 72 for cooperating with the first fixing groove 71 is penetrated and opened at the bottom of the sleeve 21 at the position of the second column groove 28. By setting the fixing rod 7, the first fixing groove 71 and the second fixing groove 72, when the clamping column 26 is inserted into the first column groove 27 and the second column groove 28, the top plate 2 and the disc 1 are fixed more stably.

[0026] On both sides of each movable rod 42, a slider 8 is fixedly installed. The slider 8 is located at the edge of the movable rod 42. On both sides of each clamping plate 15 located in the circular groove 4, a sliding groove 81 for cooperating with the slider 8 is provided. By providing the slider 8 and the sliding groove 81, when the spring 41 contracts and rebounds, it is more stable. At the same time, the spring 41 is limited to prevent the spring 41 from driving the movable rod 42 to rebound too much, which affects the contraction of the movable rod 42 next time.

[0027] Working principle: In actual use, the top plate 2 is fixedly connected to a robot (not shown in the figure). When it is necessary to clamp a nut, the air cylinder 11 is started to drive the cylinder 12 and the first half-trapezoidal block 13 to move downward. As the first half-trapezoidal block 13 moves downward, the latch 16 slides in the card slot 17. Since the latch 16 is slidably clamped in the card slot 17, each second half-trapezoidal block 14 drives the corresponding clamping plate 15 to move outward. At the same time, the T-shaped block 18 is driven to move outward in the T-shaped groove 19. Subsequently, the height of the fixture is adjusted by the robot. When it moves to the position of the nut to be clamped, the air cylinder 11 is retracted, driving the cylinder 12 and the first half-trapezoidal block 13 to move upward. At the same time, the latch 16 moves upward in the card slot 17, the second half-trapezoidal block 14 retracts, and the T-shaped block 18 moves toward the middle in the T-shaped groove 19, so that the clamping plate 15 fits with the nut, so that it is not necessary to fit with each corner of the nut to clamp the nut.

[0028] When it is necessary to fix the top plate 2 and the disc 1 together, the sleeve 21 on the top plate 2 is sleeved on the cylinder 22 so that the first column groove 27, the second column groove 28, and the clamping column 26 correspond. Subsequently, by rotating the double-headed screw 24, the moving plate 25 and the clamping column 26 move toward both sides, so that the clamping column 26 is clamped into the corresponding first column groove 27 and second column groove 28, thereby fixing the disc 1 and the top plate 2 together.

[0029] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A robot fixture, comprising a disc (1), characterized in that: A cylinder (11) is fixedly mounted in the middle of the disc (1), a driving end of the cylinder (11) passes through the disc (1), a column (12) is fixedly mounted on the driving end of the cylinder (11), three first semi-trapezoidal blocks (13) evenly distributed in an annular pattern are fixedly mounted on the outside of the column (12), a second semi-trapezoidal block (14) used in conjunction with the first semi-trapezoidal block (13) is provided on the lower surface of the disc (1), a clamping plate (15) is fixedly mounted at the bottom edge of the second semi-trapezoidal block (14), and each of the first semi-trapezoidal blocks (13) is fixedly mounted on the bottom edge of the disc (1). ) is fixedly mounted with a clamping block (16) on the side away from the cylinder (12), each of the second semi-trapezoidal blocks (14) is provided with a clamping groove (17) for use with the clamping block (16) on the side close to the cylinder (12), each of the second semi-trapezoidal blocks (14) is fixedly mounted with a T-shaped block (18) on the top end, a T-shaped groove (19) for use with the T-shaped block (18) is provided at the bottom end of the disc (1), a top disc (2) is provided on the upper surface of the disc (1), and two sets of sleeves (21) distributed symmetrically are fixedly mounted at the bottom end of the top disc (2).

2. A robot gripper as claimed in claim 1, characterized in that: A cylinder (22) for use with a sleeve (21) is fixedly installed at the top of the disc (1), and two groups of symmetrically distributed fixed plates (23) are fixedly installed at the top of the disc (1). A double-headed screw (24) with opposite threads at both ends is rotatably penetrated through the top of each group of the fixed plates (23). The two double-headed screws (24) have the same threads. The outer sides of the double-headed screws (24) are threadedly connected to two symmetrically distributed movable plates (25). A clamping column (26) is fixedly installed on the outer side of the movable plate (25). A first column groove (27) for use with the clamping column (26) is penetrated through the middle of the cylinder (22), and a second column groove (28) for use with the first column groove (27) is penetrated through the bottom of the sleeve (21).

3. A robot gripper as claimed in claim 1, characterized in that: A plurality of circular grooves (4) distributed in a rectangular shape are formed on the inner side of each clamping plate (15), a spring (41) is fixedly mounted on the inner wall of the circular groove (4), and a movable rod (42) is fixedly mounted on the side of the spring (41) away from the clamping plate (15).

4. A robot gripper as claimed in claim 2, characterized in that: A first bevel gear (5) is fixedly mounted on one end of each double-headed screw (24); a second bevel gear (51) with the same rotation direction is meshedly connected to the outer side of the first bevel gear (5); a rotating shaft (52) is fixedly mounted in the middle of the second bevel gear (51); an outer rotating sleeve of the rotating shaft (52) is provided with two symmetrically distributed fixed seats (53); and the fixed seats (53) are fixed on the disc (1).

5. A robot gripper as claimed in claim 4, characterized in that: A motor (54) is fixedly mounted at the top edge of the disc (1), and a driving end of the motor (54) is fixedly mounted on the end of the rotating shaft (52).

6. A robot gripper as claimed in claim 2, characterized in that: A limiting rod (6) is fixedly installed between each group of the fixed plates (23), and the movable plate (25) slides outside the limiting rod (6).

7. A robot gripper as claimed in claim 2, characterized in that: A plurality of fixing rods (7) evenly distributed in an annular manner are fixedly mounted on the outside of each clamping column (26); a first fixing groove (71) for use in conjunction with the fixing rod (7) is provided through the middle of each cylinder (22) at the position of the first column groove (27); and a second fixing groove (72) for use in conjunction with the first fixing groove (71) is provided through the bottom of the sleeve (21) at the position of the second column groove (28).

8. A robot gripper as claimed in claim 3, characterized in that: Slide blocks (8) are fixedly mounted on both sides of each movable rod (42), and the slide blocks (8) are located at the edge of the movable rod (42). Each clamping plate (15) is located on both sides of the circular groove (4) and is provided with slide grooves (81) for use with the slide blocks (8).

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