Mechanical clamp

Abstract

The utility model provides a mechanical clamp, and belongs to the field of mechanical clamping equipment. The mechanical clamp is provided with two clamping jaws which can be opened and closed oppositely. And a self-adaptive resistance increasing mechanism is arranged on the clamping surface of the clamping jaw. According to the mechanical clamp provided by the utility model, in the normal use process, friction force can be increased to a clamped object through the rubber pad of the self-adaptive resistance increasing mechanism, so that the clamping jaw is relatively stable when clamping the object, and when the clamping jaw is used for clamping the object, the friction force can be increased.

Description

Technical Field

[0001] The utility model provides a mechanical clamp, which belongs to the field of mechanical clamping equipment. Background Art

[0002] A machine tool fixture is a device used to clamp workpieces and guide cutting tools on machine tools. It refers to a fixture specially designed for a certain process of a certain workpiece. It is characterized by a compact structure, quick, convenient and labor-saving operation, and can ensure high production efficiency. However, the design and manufacturing cycle is long and the manufacturing cost is also high. When the product changes, the fixture will be scrapped because it can no longer be used. It is only suitable for production with fixed products and large batches.

[0003] In conventional technology, mechanical grippers typically use two clamping blocks or claws to grasp objects. However, when gripping large objects, the friction between the object and the claws is insufficient, potentially causing the object to fall out of the gripping jaws. Furthermore, if the gripper needs to flip after gripping a large object, friction and support issues can cause the object to fall out of the gripping jaws. Utility Model Content

[0004] The utility model provides a mechanical clamp to solve the above problems.

[0005] The utility model adopts the following technical problems:

[0006] The utility model discloses a mechanical clamp having two relatively open and closed clamping jaws. A self-adaptive resistance-increasing mechanism is arranged on the clamping surface of the clamping jaws. The self-adaptive resistance-increasing mechanism maintains the space between the clamping jaws and the clamped object, thereby increasing the friction force of the clamping jaws and preventing the clamped object from falling.

[0007] The mechanical clamp of the utility model, the self-adaptive resistance increasing mechanism comprises: an L-shaped plate, a limiting plate, and an elastic resistance device;

[0008] The L-shaped plate is attached to the outside of the clamping surface of the clamping claw, and a limit plate is provided on the clamping claw; the elastic resistance device is fixed to the mechanical clamp, and the elastic resistance device resists the L-shaped plate and is clamped on the limit plate; a rubber pad is provided on the contact surface between the L-shaped plate and the object.

[0009] The mechanical clamp of the utility model, the elastic resistance device includes a spring, a support plate, and a concave block;

[0010] The L-shaped plate is provided with a mounting plate;

[0011] The spring and the support plate are arranged relative to the mechanical fixture and the mounting plate;

[0012] A concave block is arranged between the support plate and the mounting plate.

[0013] In the mechanical clamp of the utility model, one end of the spring is arranged on the mechanical clamp, and the other end is in contact with the mounting plate;

[0014] The support plate and the concave block are located above the spring.

[0015] In the mechanical clamp of the utility model, a supporting block is provided between the contact end of the spring and the mounting plate.

[0016] The mechanical clamp described in the utility model has two support plates parallel to the expansion and contraction direction of the spring;

[0017] The mounting plate and the two support plates are both provided with limiting grooves; the concave blocks are embedded in the limiting grooves of the mounting plate and the two support plates.

[0018] The mechanical clamp of the utility model has an inserting block inserted between the supporting plate and the concave block.

[0019] The mechanical clamp of the utility model is provided with a pressure-bearing mechanism below the clamping claws.

[0020] The mechanical clamp of the present invention, the pressure-bearing mechanism includes a telescopic rod located at the bottom of the clamping claw, the bottom end of the telescopic rod is horizontally arranged with a bottom plate; the height of the bottom plate is lower than the bottom of the mechanical clamp.

[0021] The mechanical clamp of the utility model is provided with a magnet on the clamping claw.

[0022] Beneficial effects

[0023] The mechanical clamp provided by the utility model increases the friction force on the clamped object through the rubber pad outside the L-shaped plate during normal use, so that the clamping claw is more stable when clamping the object.

[0024] The mechanical clamp provided by the utility model uses a telescopic rod to adjust the height of the bottom plate so that the bottom plate fits with the bottom of the object to be clamped, thereby increasing the force-bearing area of ​​the clamped object and making the object more stable when being clamped. The outer surface of the clamping claw is installed with a first magnet and a second magnet, so if the object is a metal part, it can be adsorbed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0027] Figure 3 For the utility model Figure 2 Enlarged schematic diagram of point A in the middle.

[0028] In the accompanying drawings, 1-device body, 2-claw, 3-mounting mechanism;

[0029] 301-L-shaped plate, 302-limiting plate, 303-mounting plate, 304-spring, 305-bearing block, 306-support plate, 307-concave block, 308-insertion block;

[0030] 4-first magnet; 5-second magnet;

[0031] 6-pressure-bearing mechanism, 601-telescopic rod, 602-bottom plate. DETAILED DESCRIPTION

[0032] To make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1 、 Figure 2 As shown, the present invention provides a mechanical clamp, wherein the mechanical clamp 1 is provided with two relatively open and closed clamping claws 2; a self-adaptive resistance-increasing mechanism 3 is arranged on the clamping surface of the clamping claws 2.

[0035] The self-adaptive resistance increasing mechanism 3 includes: an L-shaped plate 301, a rubber pad is provided on the contact surface between the L-shaped plate and the object, a limit plate 302, and an elastic resistance device; the L-shaped plate 301 is attached to the outside of the clamping surface of the clamping claw 2, and a limit plate 302 is provided on the clamping claw 2; the elastic resistance device is fixed to the mechanical clamp 1, and the elastic resistance device resists the L-shaped plate 301 and is clamped on the limit plate 302.

[0036] like Figure 3 As shown: the elastic resistance device includes a spring 304, a support plate 306, and a concave block 307;

[0037] A mounting plate 303 is provided on the L-shaped plate 301;

[0038] The spring 304 and the support plate 306 are arranged relative to the mechanical fixture 1 and the mounting plate 303;

[0039] A concave block 307 is arranged between the support plate 306 and the mounting plate 303 .

[0040] Two springs 304 are fixedly installed on the mechanical clamp 1, and a supporting block 305 is fixedly installed on the end of the two springs 304 away from the mechanical clamp 1. The outer surfaces of the two L-shaped plates 301 are provided with grooves that are compatible with the limit plates 302. There are four support plates 306 in total, and each two are divided into a group. The outer surface of each group of support plates 306 is provided with a limit groove, and the inner wall of the limit groove is in contact with the concave block 307. There are two support plates 306 parallel to the extension and contraction direction of the springs 304; the mounting plate 303 and the two support plates 306 are provided with limit grooves; the concave block 307 is embedded in the limit grooves of the mounting plate 303 and the two support plates 306.

[0041] Working principle: During normal use, the device increases friction on the clamped object through the rubber pad on the outside of the L-shaped plate 301, making the clamping claw 2 as stable as possible when clamping the object. When the device needs to clamp an irregular object, the L-shaped plate 301 is first installed on the outer surface of the clamping claw 2, and the groove is aligned with the limiting plate 302, and then they are fitted together. At this time, the spring 304 at the rear will squeeze it through the supporting block 305 through its own elastic force. Then, the concave block 307 can be placed in the mounting groove at the top of the mounting plate 303 and the limiting grooves at the top of the two support plates 306, and the L-shaped plate 301 is pressed against it to increase the stability of the L-shaped plate 301. In order to limit the concave block 307, a sliding groove is opened on the inner wall of the concave block 307 and the support plate 306, and the insert block 308 is inserted into the sliding groove to limit it.

[0042] Example 2:

[0043] like Figure 1 、 Figure 2 As shown, the present invention provides a mechanical clamp, which is provided with two relatively open and closed clamping jaws 2 on the mechanical clamp 1; a self-adaptive resistance increasing mechanism 3 is arranged on the clamping surface of the clamping jaws 2. In this second embodiment, the mechanical clamp is provided with a pressure-bearing mechanism 6 below the clamping jaws 2 on the mechanical clamp 1. A first magnet 4 and a second magnet 5 are respectively installed on the top of the clamping surface of the two clamping jaws 2 of the mechanical clamp 1.

[0044] The pressure-bearing mechanism 6 includes a telescopic rod 601 located at the bottom of the clamping claw 2 , and a bottom plate 602 is horizontally arranged at the bottom end of the telescopic rod 601 ; the height of the bottom plate 602 is lower than the bottom of the mechanical clamp 1 .

[0045] In this example, when the claw 2 is clamping an object, the telescopic rod 601 can be used to adjust the height of the base plate 602 so that the base plate 602 fits closely with the bottom of the object to be clamped, thereby increasing the force-bearing area of ​​the clamped object and making the object more stable when being clamped. A first magnet 4 and a second magnet 5 are installed on the outer surface of the claw 2, so that if the object is a metal part, it can be adsorbed.

[0046] Working principle: When the device needs to clamp an irregular object, first install the L-shaped plate 301 on the outer surface of the claw 2, align the groove with the limit plate 302, and then make them fit together. At this time, the spring 304 at the rear will squeeze it through the support block 305 through its own elastic force. Then, the concave block 307 can be placed in the installation groove at the top of the installation plate 303 and the limit grooves at the top of the two support plates 306 to hold the L-shaped plate 301 against it, increasing the stability of the L-shaped plate 301. In order to limit the concave block 307, a sliding groove is opened on the inner wall of the concave block 307 and the support plate 306, and the insert block 308 is inserted into the sliding groove to limit it. When the claw 2 is clamping an object, the telescopic rod 601 can be used to adjust the height of the bottom plate 602 so that the bottom plate 602 fits the bottom of the object to be clamped, and a rotating block is provided on the back of the device body 1. During the clamping process, if the clamped object needs to be turned over, it can be turned over by the rotating block.

[0047] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A mechanical clamp, wherein the mechanical clamp (1) is provided with two relatively open and closed clamping claws (2); characterized in that: A self-adaptive resistance-increasing mechanism (3) is arranged on the clamping surface of the clamping claw (2); The self-adaptive resistance-increasing mechanism (3) comprises: an L-shaped plate (301), a limiting plate (302), and an elastic resistance device; The L-shaped plate (301) is fitted on the outside of the clamping surface of the clamping claw (2), and a limit plate (302) is provided on the clamping claw (2); the elastic resistance device is fixed to the mechanical clamp (1), and the elastic resistance device resists the L-shaped plate (301) and is clamped on the limit plate (302); a rubber pad is provided on the contact surface between the L-shaped plate (301) and the object.

2. The mechanical clamp according to claim 1, characterized in that: The elastic resistance device includes a spring (304), a support plate (306), and a concave block (307); A mounting plate (303) is provided on the L-shaped plate (301); The spring (304) and the support plate (306) are arranged relative to the mechanical fixture (1) and the mounting plate (303); A concave block (307) is arranged between the support plate (306) and the mounting plate (303).

3. The mechanical clamp according to claim 2, characterized in that: One end of the spring (304) is arranged on the mechanical fixture (1), and the other end is in contact with the mounting plate (303); The support plate (306) and the concave block (307) are located above the spring (304).

4. The mechanical clamp according to claim 2, characterized in that: A support block (305) is provided between the contact end of the spring (304) and the mounting plate (303).

5. The mechanical clamp according to claim 2 or 3, characterized in that: The support plates (306) are two and are parallel to the expansion and contraction direction of the spring (304); The mounting plate (303) and the two support plates (306) are both provided with limiting grooves; the concave blocks (307) are embedded in the limiting grooves of the mounting plate (303) and the two support plates (306).

6. The mechanical clamp according to claim 5, characterized in that: An insert block (308) is inserted between the support plate (306) and the concave block (307).

7. The mechanical clamp according to claim 1, wherein: A pressure-bearing mechanism (6) is provided on the mechanical clamp (1) below the clamping claw (2).

8. The mechanical clamp according to claim 7, characterized in that: The pressure-bearing mechanism (6) comprises a telescopic rod (601) located at the bottom of the clamping claw (2), and a bottom plate (602) is arranged horizontally at the bottom end of the telescopic rod (601); the height of the bottom plate (602) is lower than the bottom of the mechanical clamp (1).

9. The mechanical clamp according to claim 1, wherein: The clamping claw (2) is also provided with a magnet.

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