Electric claw

Abstract

The utility model discloses an electric clamping claw, including a mounting seat and a cavity, wherein the cavity is integrally arranged inside the mounting seat, a driving component is arranged inside the cavity, and a clamping component is arranged inside the mounting seat. The utility model can adjust the distance between two splints to within the range required by the staff through the design of mechanical linkage, so that the splint can grab objects of different sizes. It can be seen that by using the device in the present application, the convenience of the splint grabbing objects of different types is improved. The utility model can control the force of the splint grabbing objects through the design of force control function, which not only avoids the damage to the object caused by the excessive force of the splint grabbing, but also prevents the object from being separated from the splint due to the insufficient force of the splint grabbing. It can be seen that by using the device in the present application, the stability of the splint grabbing objects is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, in particular to an electric clamping claw. Background Art

[0002] With the rapid development of science and technology, robots are increasingly used in the field of automation. As one of the end effectors of robots, electric grippers have more outstanding advantages than pneumatic grippers: they are independent of air sources, have a wide range of adaptability, and have strong clamping force. Electric grippers are generally used in places where heavy objects are transported or where there are special requirements for the transport process, such as power-off retention. Electric grippers have two states: open and clamped. Two detection switches are generally used for position detection. This control method is relatively stable and reliable, and is feasible for clamping a single object. However, if multiple objects are clamped, especially if the size of the clamping part of the object varies, this control method has limitations, and the position of the clamping detection switch needs to be adjusted frequently, and the clamping force is unstable.

[0003] The patent name is "An Electric Driven Clamping Claw" with the publication number "CN215789925U". The public document solves the above problems, but the device in the public document uses the rebound force of the spring to put the clamping claw in an expanded state, and the size of the expansion range of the clamping claw is limited, resulting in the clamping claw being unable to grasp objects of different sizes. Based on this, the utility model designs an electric clamping claw to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an electric clamping claw to solve the problems raised by the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric clamping claw, comprising a mounting seat and a cavity, the cavity is integrally arranged inside the mounting seat, a driving assembly is arranged inside the cavity, a clamping assembly is arranged inside the mounting seat, the driving assembly comprises a servo reduction motor fixedly arranged on the middle side of the lower end of the cavity, a worm is fixedly arranged on the top of the servo reduction motor, the clamping assembly comprises a screw rod transferred to the upper end of the cavity, a worm wheel fixedly sleeved on the middle end of the outside of the screw rod is meshed with the worm gear teeth, sliding columns are threadedly sleeved on the left and right sides of the outside of the screw rod, and a splint is fixedly arranged on the top of the sliding column.

[0006] Furthermore, the sliding column and the screw rod on the left side are designed to be connected with a left thread, and the sliding column and the screw rod on the right side are designed to be connected with a right thread, and the two splints are designed to be longitudinally parallel.

[0007] Furthermore, the left and right sides of the top of the mounting seat are integrally provided with clearance holes, the clearance holes are through-holes, and the clearance holes are sleeved on the outside of the sliding column.

[0008] Furthermore, a baffle is fixedly sleeved on the outer upper end of the sliding column, the bottom surface of the baffle and the top surface of the mounting seat are designed to fit each other, and the top view cross-section of the baffle is larger than the top view cross-section of the avoidance hole, and an avoidance hole is integrally provided on the left side of the inside of the right baffle.

[0009] Furthermore, a mounting groove is integrally provided inside the clamping plate, and a thin film pressure sensor is fixed inside the mounting groove.

[0010] Furthermore, a controller is fixedly provided on the outer wall of the mounting seat, and the controller is connected to the film pressure sensor and the servo reduction motor through wires, and the controller is connected to an external 220V power supply through wires.

[0011] Furthermore, a slide plate is slidably connected inside the installation groove, a top block is fixedly arranged at the middle end of the outer side of the slide plate, and the top block corresponds to the thin film pressure sensor one by one.

[0012] Furthermore, pressure springs are fixedly provided at the upper and lower ends of the outer side of the slide plate, and one end of the pressure spring away from the slide plate is fixedly connected to the clamping plate.

[0013] Furthermore, a plurality of limit plates are fixedly provided on the inner side of the skateboard from top to bottom, the cross section of the limit plates is sawtooth-shaped when viewed from the side, and the limit plates are made of rubber.

[0014] Furthermore, the top of the worm is connected to the top of the mounting base through a transfer connection, and the axis of the worm and the axis of the lead screw are in a cross-shaped design.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model uses a mechanical linkage design to adjust the distance between two splints to within the range required by the staff, so that the splints can grab objects of different sizes. It can be seen that by using the device in this application, the convenience of the splint in grabbing different types of objects is improved.

[0017] 2. The utility model can control the force with which the splint grasps an object through the design of the force control function, which not only avoids the splint's grasping force being too large and causing damage to the object, but also prevents the splint's grasping force being too small and causing the object to fall off the splint. It can be seen that by using the device in this application, the stability of the splint in grasping objects is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are 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 creative work.

[0019] Figure 1 This is a front perspective view of an electric clamping claw of the utility model;

[0020] Figure 2 This is a top-down perspective view of the interior of an electric clamping claw of the utility model;

[0021] Figure 3 This is a side perspective view of the interior of an electric clamping claw of the utility model;

[0022] Figure 4 It is a three-dimensional view of the interior of the splint;

[0023] Figure 5 is a three-dimensional diagram of a driving assembly and a clamping assembly;

[0024] Figure 6 A three-dimensional diagram of the mounting base and the clearance hole.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-mounting seat, 2-cavity, 3-drive assembly, 4-clamping assembly, 301-servo reduction motor, 302-worm, 401-screw, 402-worm wheel, 403-sliding column, 404-clamping plate, 5-allowance hole, 6-baffle, 7-mounting groove, 8-thin film pressure sensor, 9-controller, 10-slide plate, 11-top block, 12-pressure spring, 13-limiting plate, 14-avoidance hole. DETAILED DESCRIPTION

[0027] 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 of 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.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 5As shown, the device includes a mounting base 1 and a cavity 2, the cavity 2 is integrally arranged inside the mounting base 1, a driving component 3 is arranged inside the cavity 2, and a clamping component 4 is arranged inside the mounting base 1. The driving component 3 includes a servo reduction motor 301 fixedly arranged on the middle side of the lower end of the cavity 2, a worm 302 is fixedly arranged on the top of the servo reduction motor 301, and the clamping component 4 includes a screw rod 401 connected to the upper end of the cavity 2, a worm wheel 402 fixedly sleeved on the middle end of the screw rod 401 is meshed with the gear teeth of the worm 302, and sliding columns 403 are threadedly sleeved on the left and right sides of the screw rod 401, and a splint 404 is fixedly arranged on the top of the sliding column 403.

[0030] The left side slide post 403 and the screw rod 401 are in the design of left-thread connection, the right side slide post 403 and the screw rod 401 are in the design of right-thread connection, and the two clamps 404 are in the state of longitudinal parallel design. The staff first turns on the forward rotation of the servo reduction motor 301, so that the servo reduction motor 301 controls the worm 302 to drive the worm wheel 402 and the screw rod 401 to rotate, and through the screw rod 401 and the slide post 403 thread transmission, the two clamps 404 are moved in opposite directions, until the spacing between the clamps 404 is adjusted to the required requirements, the servo reduction motor 301 is first turned off, and then the two clamps 404 are placed on the left and right sides of the object, and then the servo reduction motor 301 is turned on in reverse, and the operation method is opposite to the above, that is, the two clamps 404 move in opposite directions, so that the clamps 404 can clamp and grasp objects of different sizes.

[0031] Example 2

[0032] like Figure 1 , Figure 4 , Figure 6As shown, the left and right sides of the top of the mounting seat 1 are integrally provided with clearance holes 5, the clearance holes 5 are through-holes, and the clearance holes 5 are sleeved on the outside of the sliding column 403, and the upper end of the sliding column 403 is fixedly sleeved with a baffle 6, the bottom surface of the baffle 6 and the top surface of the mounting seat 1 are in a mutually fitting design, and the top view cross section of the baffle 6 is larger than the top view cross section of the clearance hole 5, and the left side of the baffle 6 on the right side is integrally provided with a avoidance hole 4, and the clamping plate 404 is integrally provided with a mounting groove 7, and a film pressure sensor 8 is fixedly provided inside the mounting groove 7, and a controller 9 is fixedly provided on the outer wall of the mounting seat 1, and the controller 9 is connected to the film pressure sensor 8 and the servo reduction motor 301 through wires, and The controller 9 is connected to the external 220V power supply through a wire, and a skateboard 10 is slidably connected inside the mounting groove 7. A top block 11 is fixedly provided at the middle end of the outer side of the skateboard 10, and the top block 11 corresponds to the film pressure sensor 8 one by one. Pressure springs 12 are fixedly provided at the upper and lower ends of the outer side of the skateboard 10, and the end of the pressure spring 12 away from the skateboard 10 is fixedly connected to the clamping plate 404. A number of limit plates 13 are fixedly provided on the inner side of the skateboard 10 from top to bottom. The cross-section of the limit plate 13 is a serrated design when viewed from the side, and the limit plate 13 is made of rubber. The top of the worm 302 is connected to the top end inside the mounting seat 1, and the axis of the worm 302 is in a cross-shaped design with the axis of the screw 401.

[0033] According to the operation mode in Example 1, the design of the clearance hole 5 ensures the stability of the displacement of the sliding column 403 threadedly connected to the screw rod 401 along the direction of the clearance hole 5. In addition, the baffle 6 can prevent foreign debris from falling into the cavity 2 through the clearance hole 5, thereby ensuring the cleanliness of the interior of the cavity 2. When the clamp 404 clamps and grasps the object, the clamp 404 drives the slide plate 10 together with the limit plate 13 to clamp the object. At this time, the limit plate 13 increases the friction force of contact with the object. Through the reaction force of the object, the limit plate 13 drives the slide plate 10 together with the top block 11 to move along the outer direction of the installation groove 7, that is, the top block 11 applies an extrusion force to the film pressure sensor 8, and the pressure spring 12 is deformed until the extrusion force on the film pressure sensor 8 reaches the set value, and the servo reduction motor 301 stops running. At this time, the clamping force of the clamp 404 on the object is within the range required by the staff. The avoidance hole 14 can prevent the two baffles 6 running towards each other from colliding with each other, and the baffle 6 on the right side is thicker than the baffle 6 on the left side.

Claims

1. An electric claw, comprising a mounting seat (1) and a cavity (2), characterized in that: The cavity (2) is integrally arranged inside the mounting seat (1); a driving assembly (3) is arranged inside the cavity (2); a clamping assembly (4) is arranged inside the mounting seat (1); the driving assembly (3) comprises a servo reduction motor (301) fixedly arranged on the middle side of the lower end inside the cavity (2); a worm (302) is fixedly arranged on the top of the servo reduction motor (301); the clamping assembly (4) comprises a screw (401) connected to the upper end inside the cavity (2); a worm wheel (402) fixedly sleeved on the middle end of the screw (401) is meshed with the gear teeth of the worm (302); sliding columns (403) are threadedly sleeved on the left and right sides of the screw (401); and a clamping plate (404) is fixedly arranged on the top of the sliding column (403).

2. The electric clamp according to claim 1, characterized in that: The left side sliding column (403) and the screw rod (401) are designed to be connected by left thread, and the right side sliding column (403) and the screw rod (401) are designed to be connected by right thread. The two clamping plates (404) are designed to be longitudinally parallel.

3. The electric clamp according to claim 1, characterized in that: The mounting seat (1) is provided with clearance holes (5) on both sides of the left and right sides of the top of the interior thereof. The clearance holes (5) are through-holes and are sleeved on the outside of the sliding column (403).

4. The electric clamp according to claim 1, characterized in that: A baffle (6) is fixedly sleeved on the outer upper end of the sliding column (403); the bottom surface of the baffle (6) and the top surface of the mounting seat (1) are designed to fit each other, and the top view cross section of the baffle (6) is larger than the top view cross section of the clearance hole (5); and an escape hole (14) is integrally provided on the left side of the inside of the right baffle (6).

5. The electric clamp according to claim 1, characterized in that: The clamping plate (404) is integrally provided with a mounting groove (7), and a thin film pressure sensor (8) is fixedly arranged inside the mounting groove (7).

6. The electric clamp according to claim 1, characterized in that: A controller (9) is fixedly arranged on the outer wall of the mounting seat (1); the controller (9) is connected to the film pressure sensor (8) and the servo reduction motor (301) via a wire, and the controller (9) is connected to an external 220V power supply via a wire.

7. The electric clamp according to claim 5, characterized in that: A slide plate (10) is slidably connected inside the installation groove (7), a top block (11) is fixedly provided at the middle end of the outer side of the slide plate (10), and the top block (11) corresponds to the thin film pressure sensor (8) one by one.

8. The electric clamp according to claim 7, characterized in that: Pressure springs (12) are fixedly provided at the upper and lower ends of the outer side of the slide plate (10), and one end of the pressure spring (12) away from the slide plate (10) is fixedly connected to the clamping plate (404).

9. The electric clamp according to claim 7, characterized in that: A plurality of limiting plates (13) are fixedly arranged on the inner side of the slide plate (10) from top to bottom. The limiting plates (13) have a sawtooth-shaped cross section when viewed from the side, and are made of rubber.

10. The electric clamp according to claim 1, characterized in that: The top of the worm (302) is connected to the top of the mounting seat (1) through a transfer, and the axis of the worm (302) and the axis of the lead screw (401) are in a cross-shaped design.

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