Modularized clamping jaw

Abstract

The utility model belongs to the technical field of clamping jaws, particularly relates to a modularized clamping jaw, and aims to solve the problems that the inner side of an existing clamping jaw is sawtooth-shaped, the existing clamping jaw can only clamp blocky objects, and when the existing clamping jaw is used for clamping a circle, the contact area between the circle object and the clamping jaw is small, so that the clamping is not firm, and the disassembly and the assembly are inconvenient. The clamping device comprises a motor, a connecting disc and a plurality of clamping jaws. The connecting disc is composed of a first guide disc and a second guide disc, the first guide disc is rotationally connected with the second guide disc, the multiple clamping jaws are all arranged at the bottom of the second guide disc, and connecting bases corresponding to the clamping jaws are arranged on the top of the first guide disc and the top of the second guide disc in a penetrating and sliding mode. The clamping device is composed of the motor, the connecting disc and the clamping jaw, the connecting parts are all detachably connected, meanwhile, the structure is simple, maintenance is convenient, the clamping jaw can be conveniently detached and replaced, different objects can be clamped, and using is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping jaws, in particular to a modular clamping jaw. Background Art

[0002] With the continuous advancement of automation and industrialization, robots are being used more and more widely. Robots can replace manual operations, such as transportation, loading, unloading, and moving, effectively releasing productivity. Robots mostly use mechanical grippers to grip and transfer objects. Mechanical grippers usually have two-finger mechanical grippers, three-finger mechanical grippers, four-finger mechanical grippers, and mechanical grippers with more fingers, which can cope with different usage scenarios.

[0003] After searching, the utility model with announcement number CN219582901U discloses a modular mechanical clamp, including a cylindrical rack shaft, a first and a second mounting cylinder, and at least two clamp modules: the first and the second mounting cylinder are movably sleeved on the cylindrical rack shaft, an annular baffle is fixed in the first mounting cylinder, one end of the second mounting cylinder is fixedly connected to the annular baffle, and a limiting ring is formed at the other end; an installation space is formed between the first and the second mounting cylinders, the annular baffle and the limiting ring; the mechanical clamp of the utility model can adjust the number of installed clamp modules, providing convenience for users.

[0004] The clamp also has the following disadvantages during use: different numbers of clamps can be installed through the combination of pads and connecting blocks during use, but because the inner side of the clamp is serrated, it can only clamp block-shaped objects. When clamping a circular object, the contact area between the circular object and the clamp is small, resulting in unstable clamping and inconvenient assembly and disassembly. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art that the inner side of the clamping jaw is serrated, which can only clamp block-shaped objects. When clamping a circle, the contact area between the circular object and the clamping jaw is small, resulting in loose clamping and inconvenient disassembly and assembly, and a modular clamping jaw is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A modular clamping jaw, comprising a motor, a connecting plate and a plurality of clamping jaws; the connecting plate is composed of a first guide plate and a second guide plate, the first guide plate is rotatably connected to the second guide plate, the plurality of clamping jaws are arranged at the bottom of the second guide plate, the tops of the first guide plate and the second guide plate are slidably provided with connecting seats corresponding to the clamping jaws, and the top of the first guide plate is fixedly connected to a mounting frame;

[0008] A motor, wherein the motor is fixedly mounted on the top of the first guide plate, and an output end of the motor passes through the first guide plate and is connected to the second guide plate, and can drive the plurality of clamps to move closer to or farther from each other;

[0009] A connecting mechanism, arranged on the clamping jaw, used for detachably connecting the clamping jaw to the connecting seat;

[0010] The clamping mechanism is arranged on the inner side of the clamping jaw and is used to clamp different types of objects.

[0011] In a possible design, the connecting seat is composed of a sliding block, a sliding column and a first mounting block. The top of the first guide plate is provided with a plurality of first waist-shaped holes, and the sliding block is slidably arranged in the corresponding first waist-shaped holes. The top of the second guide plate is provided with a second waist-shaped hole corresponding to the first waist-shaped hole, and the sliding column is slidably arranged in the corresponding second waist-shaped hole. The bottom of the sliding column is fixedly provided with a first mounting block that interferes with the bottom of the second guide plate.

[0012] In a possible design, the connecting mechanism includes a connecting block fixed on the top of the clamp, a rectangular groove is opened on one side of the clamp, a bolt is passed through the top of the rectangular groove, a threaded hole is opened at the bottom of the first mounting block, and the bolt is threadedly connected in the threaded hole.

[0013] In a possible design, a plurality of positioning pins are fixedly provided on the top of the connecting block, and positioning holes corresponding to the positioning pins are opened on the bottom of the first mounting block for further limiting the position of the clamping claws.

[0014] In a possible design, a fixed plate is fixedly provided on the top of the first guide plate, and a same connecting shaft is rotatably provided through the tops of the first guide plate and the fixed plate, the bottom end of the connecting shaft is fixedly connected to the second guide plate, and the top end of the connecting shaft is plugged into the output end of the motor, and the motor is fixed on the fixed plate.

[0015] In one possible design, the clamping mechanism includes a serration groove formed inside the clamping jaw to increase the friction between the clamping jaw and the object.

[0016] In a possible design, the clamping mechanism includes an arc-shaped groove formed on the inner side of the clamping jaw for clamping a round object.

[0017] In a possible design, the clamping mechanism includes a rubber pad disposed inside the clamping jaws for clamping hard objects.

[0018] In the present application, when in use, the motor is powered on and started, the motor can drive the clamping claw to rotate, and the rotation of the clamping claw can drive the second guide plate to rotate. During the rotation of the second guide plate, the connecting seat can slide in the first waist-shaped hole and the sliding column can slide in the second waist-shaped hole in cooperation with the first waist-shaped hole, so that the plurality of clamping claws can be driven to approach each other to clamp the object, otherwise the object can be released;

[0019] When the number of clamping jaws needs to be adjusted, the bolt can be disengaged from the threaded hole by rotating the bolt. At this time, the corresponding clamping jaws can be removed, leaving only two corresponding clamping jaws, which can clamp smaller objects.

[0020] When a round object needs to be clamped, the clamping jaw with the arc groove is installed on the first mounting block, the positioning pin is inserted into the positioning hole and fastened by bolts, so that the contact area between the object and the clamping jaw can be increased during the clamping process, and the clamping is more secure.

[0021] Beneficial effects:

[0022] In the utility model, the modular clamp is divided into multiple modules, so that it is convenient to carry out maintenance and replacement after a certain part is damaged, so as to avoid being unable to repair after a certain part is damaged, so that the maintenance efficiency can be improved;

[0023] In the utility model, the modular clamping jaw is connected by positioning and fixing the connecting block and the first mounting block, so that the clamping jaw can be easily disassembled, so that it can clamp objects of different sizes, and the inner sides of the multiple groups of clamping jaws are provided with sawtooth grooves, arc grooves and rubber pads, so that it can clamp objects of different shapes, thereby improving the clamping effect;

[0024] In the utility model, the clamping device is composed of a motor, a connecting plate and a clamping claw, and the connecting parts are all detachably connected. At the same time, the structure is simple, which is not only convenient for maintenance, but also convenient for disassembly and replacement of the clamping claw, so that it can clamp different objects and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of a modular clamping jaw proposed in the utility model;

[0026] Figure 2 This is a schematic diagram of the exploded structure of a modular gripper proposed by the utility model;

[0027] Figure 3 A schematic diagram of a connecting plate structure of a modular clamping jaw proposed in the utility model;

[0028] Figure 4 This is a schematic diagram of the connection structure between the first mounting block and the connection block of a modular clamp proposed by the utility model;

[0029] Figure 5 This is a schematic diagram of the clamping jaw structure of a modular clamping jaw proposed in the utility model.

[0030] In the figure: 2, mounting frame; 3, motor; 4, connecting plate; 5, clamping claw; 6, fixing plate; 7, first guide plate; 8, first waist-shaped hole; 9, second guide plate; 10, connecting seat; 11, second waist-shaped hole; 12, sliding block; 13, sliding column; 14, first mounting block; 15, rectangular groove; 16, bolt; 17, threaded hole; 18, positioning hole; 19, positioning pin; 20, connecting block; 21, serrated groove; 22, arc groove; 23, rubber pad; 24, connecting shaft. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Example 1

[0033] Reference Figure 1-Figure 5 A modular gripper, which is used in the field of mechanical grippers, comprises: a motor 3, a connecting plate 4 and a plurality of grippers 5, wherein the connecting plate 4 is composed of a first guide plate 7 and a second guide plate 9, wherein the first guide plate 7 is rotatably connected to the second guide plate 9, wherein the plurality of grippers 5 are arranged at the bottom of the second guide plate 9, wherein a connecting seat 10 corresponding to the grippers 5 is slidably provided through the top of the first guide plate 7 and the second guide plate 9, and a mounting frame 2 is fixedly connected to the top of the first guide plate 7;

[0034] The motor 3 is fixed on the top of the first guide plate 7. The output end of the motor 3 passes through the first guide plate 7 and is connected to the second guide plate 9, and can drive the multiple clamping claws 5 to move closer to or away from each other.

[0035] A connecting mechanism, provided on the clamping jaw 5, for detachably connecting the clamping jaw 5 to the connecting base 10;

[0036] The clamping mechanism is arranged on the inner side of the clamping jaw 5 and is used to clamp different types of objects. By starting the motor 3, the second guide plate 9 can be driven to rotate. The rotation of the second guide plate 9 can drive the connecting seat 10 to slide in the first guide plate 7 and the second guide plate 9, thereby driving multiple clamping jaws 5 to approach each other for clamping. The clamping jaws 5 can be detachably connected to the connecting seat 10 through the connecting mechanism, making it easy to replace clamping jaws 5 of different sizes.

[0037] The connecting seat 10 is composed of a sliding block 12, a sliding column 13 and a first mounting block 14. A plurality of first waist-shaped holes 8 are provided on the top of the first guide plate 7. The sliding block 12 is slidably arranged in the corresponding first waist-shaped holes 8. A second waist-shaped hole 11 corresponding to the first waist-shaped hole 8 is provided on the top of the second guide plate 9. The sliding column 13 is slidably arranged in the corresponding second waist-shaped hole 11. The bottom of the sliding column 13 is fixedly provided with a first mounting block 14 that is in conflict with the bottom of the second guide plate 9. The rotation of the second guide plate 9 can drive the sliding column 13 to slide inside, and drive the sliding block 12 to slide in the first waist-shaped hole 8, thereby driving the first mounting block 14 to move in a straight line, so that it can drive the clamping claw 5 to move for clamping.

[0038] The connecting mechanism includes a connecting block 20 fixedly arranged on the top of the clamping jaw 5, a rectangular groove 15 is provided on one side of the clamping jaw 5, a bolt 16 is passed through the top of the rectangular groove 15, a threaded hole 17 is provided at the bottom of the first mounting block 14, and the bolt 16 is threadedly connected in the threaded hole 17. By setting the bolt 16 and the threaded hole 17, the clamping jaw 5 can be fixed on the corresponding first mounting block 14, so that it is easy to replace.

[0039] A plurality of positioning pins 19 are fixedly provided on the top of the connecting block 20, and positioning holes 18 corresponding to the positioning pins 19 are opened on the bottom of the first mounting block 14 for further limiting the position of the clamping jaw 5. By plugging the positioning holes 18 and the positioning pins 19 together, the clamping jaw 5 can be prevented from rotating during use, making the connection more secure.

[0040] A fixed plate 6 is fixedly provided on the top of the first guide plate 7, and a common connecting shaft 24 is rotatably provided through the tops of the first guide plate 7 and the fixed plate 6. The bottom end of the connecting shaft 24 is fixedly connected to the second guide plate 9, and the top end of the connecting shaft 24 is plugged into the output end of the motor 3. The motor 3 is fixed on the fixed plate 6, and the first guide plate 7 and the second guide plate 9 are connected together by the connecting shaft 24. The motor 3 can be supported and installed by the fixed plate 6, so that the damaged motor 3 can be easily replaced.

[0041] The clamping mechanism includes a serrated groove 21 formed on the inner side of the clamping jaw 5, which is used to increase the friction between the clamping jaw 5 and the object. By forming the serrated groove 21 on the inner side of the clamping jaw 5, the friction between the soft object can be increased to avoid insufficient clamping force and the object from falling off.

[0042] Example 2

[0043] refer to Figure 5 , improved on the basis of Example 1: the clamping mechanism includes an arc groove 22 opened on the inner side of the clamping jaw 5, which is used to clamp a circular object. By opening the arc groove 22 on the inner side of the clamping jaw 5, the contact area with the circular object can be increased when clamping the circular object.

[0044] Example 3

[0045] refer to Figure 5 , improved on the basis of Example 1: the clamping mechanism includes a rubber pad 23 arranged on the inner side of the clamping jaw 5, which is used to clamp hard objects. By arranging the rubber pad 23 on the inner side of the clamping jaw 5, the friction between the hard objects can be increased when clamping the hard objects.

[0046] However, as is well known to those skilled in the art, the working principle and wiring method of the motor 3 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A modular gripper, comprising a motor (3), a connecting plate (4) and a plurality of grippers (5), characterized in that: The connecting plate (4) is composed of a first guide plate (7) and a second guide plate (9), the first guide plate (7) is rotatably connected to the second guide plate (9), a plurality of the clamping claws (5) are arranged at the bottom of the second guide plate (9), a connecting seat (10) corresponding to the clamping claws (5) is slidably provided through the top of the first guide plate (7) and the second guide plate (9), and a mounting frame (2) is fixedly connected to the top of the first guide plate (7); A motor (3), wherein the motor (3) is fixedly mounted on the top of the first guide plate (7), and an output end of the motor (3) passes through the first guide plate (7) and is connected to the second guide plate (9), and is capable of driving the plurality of clamping claws (5) to move closer to or further away from each other; A connecting mechanism, disposed on the clamping jaw (5) and used for detachably connecting the clamping jaw (5) to the connecting seat (10); The clamping mechanism is arranged on the inner side of the clamping claw (5) and is used to clamp different types of objects.

2. A modular clamp according to claim 1, characterized in that: The connecting seat (10) is composed of a sliding block (12), a sliding column (13) and a first mounting block (14); a plurality of first waist-shaped holes (8) are provided on the top of the first guide plate (7); the sliding block (12) is slidably arranged in the corresponding first waist-shaped holes (8); a second waist-shaped hole (11) corresponding to the first waist-shaped hole (8) is provided on the top of the second guide plate (9); the sliding column (13) is slidably arranged in the corresponding second waist-shaped hole (11); and a first mounting block (14) is fixedly arranged at the bottom of the sliding column (13) and contacts the bottom of the second guide plate (9).

3. A modular clamp according to claim 2, characterized in that: The connecting mechanism comprises a connecting block (20) fixedly arranged on the top of the clamping jaw (5); a rectangular groove (15) is provided on one side of the clamping jaw (5); a bolt (16) penetrates through the top of the rectangular groove (15); a threaded hole (17) is provided at the bottom of the first mounting block (14); and the bolt (16) is threadedly connected in the threaded hole (17).

4. A modular clamp according to claim 3, characterized in that: A plurality of positioning pins (19) are fixedly provided on the top of the connection block (20), and positioning holes (18) corresponding to the positioning pins (19) are provided on the bottom of the first mounting block (14) for further limiting the position of the clamping jaws (5).

5. A modular clamp according to claim 1, characterized in that: A fixed plate (6) is fixedly provided on the top of the first guide plate (7); a common connecting shaft (24) is rotatably provided through the tops of the first guide plate (7) and the fixed plate (6); the bottom end of the connecting shaft (24) is fixedly connected to the second guide plate (9); the top end of the connecting shaft (24) is plugged into the output end of the motor (3); and the motor (3) is fixedly provided on the fixed plate (6).

6. A modular clamp according to any one of claims 1 to 5, characterized in that: The clamping mechanism comprises a sawtooth groove (21) formed on the inner side of the clamping jaw (5) and used to increase the friction between the clamping jaw (5) and the object.

7. A modular clamp according to any one of claims 1 to 5, characterized in that: The clamping mechanism comprises an arc-shaped groove (22) formed on the inner side of the clamping claw (5) and used for clamping a circular object.

8. A modular clamp according to any one of claims 1 to 5, characterized in that: The clamping mechanism comprises a rubber pad (23) arranged on the inner side of the clamping claw (5) and is used for clamping a hard object.

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