Bar gripper

Abstract

The utility model discloses a bar gripper, and relates to the technical field of bar machining devices. The clamping device comprises a base, a mechanical arm is installed at the top of the base, an installation plate is installed at the output end of the mechanical arm, a clamping jaw air cylinder is installed on the side, away from the mechanical arm, of the installation plate, and two symmetrically-distributed installation grooves are formed in the side, facing the clamping jaw air cylinder, of the installation plate. The clamping jaw air cylinders can be inserted into the mounting grooves in a matched mode, grooves are formed in the positions, close to the mounting grooves, of the interior of the mounting plate, lead screws are rotationally arranged in the grooves, and threads at the two ends of each lead screw are opposite. When the clamping jaw air cylinder is mounted, the clamping jaw air cylinder only needs to be inserted into the mounting groove, then the rotating block is driven to rotate, mounting can be completed, dismounting and quick dismounting can be completed only by reversing the rotating block in subsequent dismounting, workers do not need to use other mounting and dismounting work, and the maintenance efficiency of the workers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bar material processing devices, in particular to a bar material gripper. Background Art

[0002] At present, in the industrial production of bar materials, more and more people are tired of manual loading. Harmful environments, high temperatures and other harsh production conditions are not suitable for workers to work. In order to avoid harm to people in production and greatly reduce the labor intensity of people, robot grippers have become their good choice:

[0003] At present, most of the bar grippers installed on the robot arm are installed with fixing bolts between the ends of the robot arm. However, as electronic devices, the grippers need to be frequently inspected and maintained. Installation with fixing bolts results in a long time for installation or removal, which affects the work efficiency of the staff. Utility Model Content

[0004] In order to solve the above-mentioned problems, the purpose of the utility model is to provide a bar gripper.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions: a bar gripper, comprising a base, a mechanical arm is installed on the top of the base, a mounting plate is installed on the output end of the mechanical arm, a clamping cylinder is installed on the side of the mounting plate away from the mechanical wall, two symmetrically distributed mounting grooves are provided on the side of the mounting plate facing the clamping cylinder, and the clamping cylinder can be inserted in the mounting groove in a matching manner, a groove is provided inside the mounting plate near each mounting groove, a screw rod is rotatably provided in the groove, the threads at both ends of the screw rod are opposite, the screw rods in the two grooves are fixedly connected at one end facing each other, the threads at both ends of the screw rod are provided with the same moving block, first positioning blocks are provided on opposite sides of the inner wall of the mounting groove, the end of the moving block can movably penetrate the groove and be fixed on the first positioning block, a connecting block is fixedly provided on the end of the first positioning block away from the moving block, and a side of the connecting block away from the first positioning block penetrates the mounting plate and is fixedly provided with a vertically arranged second positioning block.

[0006] Preferably, the connecting rod is fixedly arranged at the end of the screw rod near the rotating rod, one end of the connecting rod passes through the mounting plate, a worm gear is fixedly arranged at one end of the connecting rod located outside the mounting plate, a worm is meshed with a worm below the worm gear, and one end of the rotating rod is fixedly arranged on the worm gear.

[0007] Preferably, a toothed plate is fixedly provided on the outside of the mounting cover near the rotating rod, a gear is fixedly provided on the side of the rotating block facing the mounting cover, the gear passes through the rotating rod together with the rotating block, the gear can be engaged with the toothed plate, a limit bar is fixedly provided on the outside of the rotating rod, and the rotating block and the gear can pass through the limit bar.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. When installing the clamping cylinder, the utility model only needs to insert the clamping cylinder into the installation slot, and then drive the rotating block to rotate to complete the installation. The subsequent disassembly only needs to reverse the rotating block to complete the disassembly. The disassembly is quick and does not require the staff to perform other installation and disassembly work, thereby improving the efficiency of the staff's maintenance;

[0010] 2. In the utility model, the gear, the tooth plate, the worm wheel and the worm are arranged so that the screw rod can be stably stopped after rotation, thereby improving the stability of the clamping and fixing of the clamping claw cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the mounting plate of the utility model.

[0014] Figure 3 It is a schematic diagram of the internal structure of the mounting plate of the utility model.

[0015] Figure 4 This is a schematic diagram of the internal structure of the installation cover of the utility model

[0016] In the figure: 1. base; 11. mechanical arm; 12. mounting plate; 13. gripper cylinder; 2. mounting groove; 21. first positioning block; 22. groove; 23. screw; 231. moving block; 24. connecting block; 25. second positioning block; 3. mounting cover; 31. connecting rod; 32. worm gear; 33. worm; 34. rotating rod; 35. gear; 36. rotating block; 37. limit strip; 38. tooth plate; 39. stop block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example: Figure 1-4 As shown, the utility model provides a bar material gripper, including a base 1, a mechanical arm 11 is installed on the top of the base 1, a mounting plate 12 is installed on the output end of the mechanical arm 11, and a clamping cylinder 13 is installed on the side of the mounting plate 12 away from the mechanical wall. The mechanical arm 11 can drive the clamping cylinder 13 to move in multiple directions. At the same time, the number of the clamping cylinders 13 is two. After the processed bar material is taken off, the other clamping cylinder 13 can put a new bar material into the processing station for processing, so that the work is uninterrupted and the production efficiency is improved.

[0019] Two symmetrically distributed mounting grooves 2 are provided on the side of the mounting plate 12 facing the clamping cylinder 13, and the clamping cylinder 13 can be inserted in the mounting groove 2. A groove 22 is provided inside the mounting plate 12 near each mounting groove 2, and a screw rod 23 is rotatably provided in the groove 22. The threads at both ends of the screw rod 23 are opposite, and the screw rods 23 in the two grooves 22 are fixedly connected at one end facing each other, and the threads at both ends of the screw rod 23 are provided with the same moving block 231, and first positioning blocks 21 are provided on opposite sides of the inner wall of the mounting groove 2, and the end of the moving block 231 can movably pass through the groove 22 and be fixed on the first positioning block 21, and a connecting block 24 is fixedly provided on the end of the first positioning block 21 away from the moving block 231, and the side of the connecting block 24 away from the first positioning block 21 passes through the mounting plate 12 and is fixedly provided with a vertically arranged second positioning block 25.

[0020] A rotating rod 34 is provided on the outside of the mounting plate 12 near one of the screw rods 23, and a rotating block 36 is provided on the rotating rod 34. The rotating block 36 can conveniently drive the rotating rod 34 to rotate, thereby driving the screw rod 23 to rotate by controlling the rotating rod 34, which is convenient for the staff to control. A rotating assembly is provided between the rotating rod 34 and the adjacent screw rod 23.

[0021] The rotating assembly includes a connecting rod 31, which is fixedly arranged at the end of the lead screw 23 near the rotating rod 34. One end of the connecting rod 31 passes through the mounting plate 12. A worm gear 32 is fixedly arranged at one end of the connecting rod 31 located outside the mounting plate 12. A worm 33 is meshed below the worm gear 32. One end of the rotating rod 34 is fixedly arranged on the worm 33. The worm gear 32 and the worm 33 are arranged to drive the lead screw 23 to rotate, which can prevent the lead screw 23 from backthreading and causing the first positioning block 21 and the second positioning block 25 to loosen the clamping of the clamping cylinder 13; a mounting cover 3 is provided on the outside of the mounting plate 12 near the worm gear 32 and the worm 33. The worm gear 32 and the worm 33 are both located in the mounting cover 3. The mounting cover 3 protects the worm gear 32 and the worm 33 to prevent the worm gear 32 and the worm 33 from being damaged, thereby increasing the service life of the device.

[0022] The gear 35 can be engaged with the toothed plate 38 when the rotating rod 34 rotates, pushing the rotating block 36 and making the gear 35 stuck in the toothed plate 38, which can ensure the stability of the rotating rod 34 and prevent the rotating rod 34 from reversing. A limit bar 37 is fixedly provided on the outside of the rotating rod 34, and the rotating block 36 and the gear 35 can penetrate the limit bar 37. The limit bar 37 can make the rotating block 36 move on the rotating rod 34 while keeping the rotating block 36 driving the rotating rod 34 to rotate; a stopper 39 is fixedly provided on the end of the rotating rod 34 away from the mounting cover 3, and the stopper 39 can block the rotating block 36 when it is pulled outward to prevent the rotating block 36 from completely separating from the rotating rod 34.

[0023] Working principle: When installing the clamping cylinder 13, the staff only needs to align the side of the clamping cylinder 13 away from the output end and insert it into the installation groove 2. First, the installation groove 2 will limit one end of the clamping cylinder 13. Then the staff can drive the rotating block 36 to rotate, and the rotating block 36 will drive the rotating rod 34 to rotate. The rotating rotating rod 34 drives the worm wheel 32 to rotate through the worm 33. At this time, the worm wheel 32 will drive the screw rod 23 to rotate through the connecting rod 31. Since the threads at both ends of the screw rod 23 are opposite, At this time, the moving blocks 231 threadedly arranged at both ends of the screw rod 23 will move toward each other at the same time, and the first positioning blocks 21 at both ends of the mounting groove 2 will move toward the clamping cylinder 13 at the same time to fix the end of the clamping cylinder 13 located in the mounting groove 2. At the same time, since the second positioning block 25 is fixedly connected to the first positioning block 21 through the connecting block 24, the second positioning block 25 will move together with the first positioning block 21, thereby clamping and positioning the end of the clamping cylinder 13 close to the mounting plate 12 again, and the installation is complete;

[0024] During subsequent disassembly, the staff can reverse the rotating block 36 so that the first positioning block 21 and the second positioning block 25 are simultaneously away from the clamping cylinder 13 to cancel the installation of the clamping cylinder 13 and directly complete the disassembly, which is convenient for the staff to disassemble and repair later.

[0025] Obviously, those skilled in the art can make various changes and modifications 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 equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A bar gripper, comprising a base (1), characterized in that: A mechanical arm (11) is installed on the top of the base (1), and a mounting plate (12) is installed on the output end of the mechanical arm (11). A gripper cylinder (13) is installed on the side of the mounting plate (12) away from the mechanical wall. Two symmetrically distributed mounting grooves (2) are provided on the side of the mounting plate (12) facing the gripper cylinder (13). The gripper cylinder (13) can be inserted into the mounting grooves (2). A groove (22) is provided inside the mounting plate (12) near each mounting groove (2). A screw rod (23) is rotatably provided in the groove (22). The threads at both ends of the screw rod (23) are opposite. The screw rods (23) in the grooves (22) are fixedly connected at one end facing each other, and the two ends of the screw rods (23) are threadedly provided with the same moving blocks (231). The first positioning blocks (21) are provided on the opposite sides of the inner wall of the installation groove (2). The end of the moving block (231) can movably penetrate the groove (22) and be fixedly arranged on the first positioning block (21). A connecting block (24) is fixedly arranged at one end of the first positioning block (21) away from the moving block (231). The side of the connecting block (24) away from the first positioning block (21) penetrates the installation plate (12) and is fixedly provided with a second positioning block (25) arranged vertically.

2. A bar gripper according to claim 1, characterized in that: A rotating rod (34) is provided outside the mounting plate (12) near one of the screw rods (23); a rotating block (36) is sleeved on the rotating rod (34); and a rotating assembly is provided between the rotating rod (34) and the adjacent screw rod (23).

3. A bar gripper according to claim 2, characterized in that: The rotating assembly comprises a connecting rod (31), wherein the connecting rod (31) is fixedly arranged at the end of the screw rod (23) close to the rotating rod (34), one end of the connecting rod (31) passes through the mounting plate (12), a worm gear (32) is fixedly arranged at one end of the connecting rod (31) located outside the mounting plate (12), a worm gear (33) is meshed below the worm gear (32), and one end of the rotating rod (34) is fixedly arranged on the worm gear (33).

4. A bar gripper according to claim 3, characterized in that: A mounting cover (3) is provided on the outside of the mounting plate (12) near the worm wheel (32) and the worm (33), and the worm wheel (32) and the worm (33) are both located inside the mounting cover (3).

5. A bar gripper according to claim 4, characterized in that: A toothed plate (38) is fixedly provided on the outside of the mounting cover (3) near the rotating rod (34); a gear (35) is fixedly provided on the side of the rotating block (36) facing the mounting cover (3); the gear (35) passes through the rotating rod (34) together with the rotating block (36); the gear (35) can be engaged with the toothed plate (38); a limiting strip (37) is fixedly provided on the outside of the rotating rod (34); the rotating block (36) and the gear (35) can pass through the limiting strip (37).

6. A bar gripper according to claim 2, characterized in that: A stopper (39) is fixedly provided at one end of the rotating rod (34) away from the mounting cover (3).

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