Automatic mechanical clamp

Abstract

The utility model relates to the technical field of mechanical automation equipment, in particular to an automatic mechanical clamp which comprises a base and two clamp bodies, the two clamp bodies are symmetrically arranged on the base, and the clamp bodies are hollow cavities. A telescopic electric cylinder, a pressure sensing structure, a piston and a liquid tank are sequentially arranged in any clamp body, one end of the piston is inserted into the liquid tank and is fixedly provided with a liquid pushing plate, a hydraulic area is formed in the position, located at the front end of the liquid pushing plate, in the liquid tank, and a plurality of telescopic clamping rods are inserted into one end of the liquid tank; the telescopic clamping rod comprises a threaded part, an elastic narrow part and an elastic wide part which are located in the hydraulic area. The telescopic clamping rod is detachably and independently arranged on the liquid tank through threaded connection of the threaded part and the liquid tank and elastic clamping connection of the elastic wide part and the liquid tank, waste is not likely to be caused, and the pressure sensing structure and the telescopic electric cylinder detect and control the pressing force of the telescopic clamping rod on the workpiece, so that use is easy.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to mechanical automation equipment technical field, concretely is a kind of automatic mechanical clamp. BACKGROUND

[0002] Clamp is fixed processing object, so that it occupies correct position, to accept the device of construction or detection in the process of mechanical manufacturing, from broad sense, in any process in the process, the device for quickly, conveniently, safely install workpiece, can be called clamp, when the conventional clamp is clamped to the workpiece of different shape, cannot self-adapting adjustment is fully fixed to workpiece.

[0003] But the telescopic clamping rod is prone to individual wear during use, which affects the use of the clamp as a whole, and the existing technology needs to replace the clamp integrally to ensure normal use of furniture after the individual wear of the telescopic clamping rod, which is easy to cause waste, and the pressure of the telescopic clamping rod on the workpiece cannot be automatically detected and controlled, which is easy to cause damage to the workpiece due to excessive pressing force. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of automatic mechanical clamp to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model adopts the following technical scheme: an automatic mechanical clamp, including base and clamp body, the clamp body is two and symmetrically arranged on base, the clamp body is hollow cavity, any one described clamp body is sequentially provided with telescopic electric cylinder, pressure sensing structure, piston and liquid tank, the piston one end inserts into liquid tank and is fixed with push liquid plate, the liquid tank inside is located at the front end position of push liquid plate and forms hydraulic area, the one end of the liquid tank is inserted with a plurality of telescopic clamping rods, the telescopic clamping rod includes screw portion, elastic narrow part and elastic wide part in hydraulic area.

[0006] Preferably, the pressure sensing structure includes a substrate, a spring, a push plate and a pressure sensor, the substrate is a rectangular plate with one end fixedly connected to the telescopic end of the telescopic cylinder, the spring is four in number and located on the other end of the substrate, the other end of the spring is fixedly connected to the push plate, the pressure sensor is embedded on the substrate and corresponds to the same number of springs one by one, and the pushing force of the push plate is detected by the pressure sensor.

[0007] Preferably, the telescopic clamp rod further comprises a clamp rod body, the threaded part is located at one end of the clamp rod body, the liquid tank and the contact position of the clamp rod body form a threaded inner wall matched with the threaded part, the elastic narrow parts are located at the other end of the threaded part and the number is two groups, the elastic wide part is located between the two groups of elastic narrow parts, the elastic narrow parts and the elastic wide part are made of rubber material, the diameters of the clamp rod body, the threaded part and the elastic narrow part are the same, the diameter of the elastic wide part is larger than that of the elastic narrow part, the liquid tank is further fixed with an elastic waterproof plate matched with the elastic narrow part on the side close to the threaded inner wall, the clamp rod body forms a jaw on the side wall outside the liquid tank, the threaded part is connected with the threaded inner wall through screw thread and the elastic wide part is clamped through the liquid tank and the elastic waterproof plate to cooperatively limit the telescopic clamp rod from moving out of the liquid tank in the telescopic direction.

[0008] Preferably, the telescopic clamp rod is fixed with a wear-resistant layer at the end away from the liquid tank, and the wear-resistant layer improves the wear resistance of the contact position of the telescopic clamp rod and the workpiece.

[0009] Preferably, the hydraulic area is filled with liquid, the liquid pushing plate is a waterproof rubber plate, and the liquid pushing plate moves towards the telescopic clamp rod to extrude the liquid in the hydraulic area, thereby pushing the telescopic clamp rod to move outward, and the liquid pushing plate extrudes the liquid to uniformly apply force to the plurality of telescopic clamp rods.

[0010] Preferably, the base is provided with a control board, the control board is electrically connected with the telescopic electric cylinder and the pressure sensing structure, and the control board transmits the detection result of the pressure sensing structure to the telescopic electric cylinder to control the telescoping.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The telescopic clamp rod can be independently and detachably arranged on the liquid tank, and waste is not easily caused.

[0013] The utility model discloses a kind of automatic mechanical clamps, by spring when liquid pushing plate extrudes liquid, it will pressure reverse pressure from spring position to base plate, and is detected by the pressure sensor corresponding to spring one-one, control board transmits the detection result to telescopic electric cylinder to automatically detect and control the pressure of telescopic clamp rod to workpiece, easy to use.

[0014] The utility model will be explained in detail in the following with specific embodiment and accompanying drawing. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are only used to show the principles, implementation manners, applications, characteristics and effects of the embodiments of the utility model and other related contents, and cannot be considered as limitations of the utility model.

[0016] In the drawings:

[0017] Fig. 1 is a whole structure schematic view of the utility model;

[0018] Fig. 2 is a whole structure sectional view of the utility model;

[0019] Fig. 3 is a clamp body internal structure schematic view of the utility model;

[0020] Fig. 4 is a structure schematic view of A of the utility model;

[0021] Reference signs:

[0022] 1, base; 11, control panel; 2, clamp body; 3, liquid tank; 31, hydraulic area; 4, telescopic clamp rod; 41, wear-resistant layer; 42, jaw; 43, clamp rod main body; 44, threaded part; 45, elastic narrow part; 46, elastic wide part; 5, telescopic electric cylinder; 6, pressure sensing structure; 61, base plate; 62, spring; 63, push plate; 64, pressure sensor; 7, piston; 8, elastic bulkhead; 9, liquid pushing plate. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limitations of the utility model.

[0024] The technical solutions of the utility model are further illustrated below by combining the drawings and through specific embodiments.

[0025] As Figs. 1 to 4As shown, an automatic mechanical clamp comprises a base 1 and a clamp body 2, the clamp body 2 is two in number and symmetrically arranged on the base 1, the clamp body 2 is a hollow cavity, any one of the clamp body 2 is sequentially provided with a telescopic electric cylinder 5, a pressure sensing structure 6, a piston 7 and a liquid tank 3, one end of the piston 7 is inserted into the liquid tank 3 and fixed with a liquid pushing plate 9, the inside of the liquid tank 3 is located at the front end position of the liquid pushing plate 9 to form a hydraulic area 31, one end of the liquid tank 3 is inserted with a plurality of telescopic clamping rods 4, the telescopic clamping rod 4 comprises a threaded part 44, an elastic narrow part 45 and an elastic wide part 46 located in the hydraulic area 31, the base 1 is provided with a control panel 11, and the control panel 11 is electrically connected with the telescopic electric cylinder 5.

[0026] The pressure sensing structure 6 comprises a base plate 61, a spring 62, a pressing plate 63 and a pressure sensor 64, the base plate 61 is a rectangular plate fixedly connected with the telescopic end of the telescopic electric cylinder 5, the spring 62 is four in number and located on the other end of the base plate 61, the other end of the spring 62 is fixedly connected with the pressing plate 63, the pressure sensor 64 is embedded on the base plate 61 and corresponds to the same number of springs 62, and the pressure sensor 64 is electrically connected with the control panel 11.

[0027] The hydraulic area 31 is filled with liquid, the liquid pushing plate 9 is a waterproof rubber plate, the telescopic end of the telescopic electric cylinder 5 is elongated to drive the piston 7 to move forward in the liquid tank 3, thereby driving the liquid pushing plate 9 to move forward to extrude the liquid in the hydraulic area 31, the liquid is closed in the hydraulic area 31 by the liquid pushing plate 9 and does not exude, and is uniformly pressed outward by the liquid pushing plate 9 to make the telescopic clamping rod 4 fully contact the workpiece for clamping.

[0028] The telescopic clamping rod 4 further comprises a clamping rod body 43, the threaded part 44 is located at one end of the clamping rod body 43, the liquid tank 3 and the clamping rod body 43 contact position forms a threaded inner wall matched with the threaded part 44, the elastic narrow part 45 is located on the other end of the threaded part 44 and is two groups in number, the elastic wide part 46 is located between the two groups of elastic narrow parts 45, the elastic narrow part 45 and the elastic wide part 46 are both made of rubber material, the diameter of the clamping rod body 43, the threaded part 44 and the elastic narrow part 45 is the same, the outer periphery of the elastic wide part 46 and the elastic narrow part 45 is connected and formed, the diameter of the elastic wide part 46 is larger than that of the elastic narrow part 45, the liquid tank 3 is further fixed with an elastic waterproof plate 8 matched with the elastic narrow part 45 on the side close to the threaded inner wall, the clamping rod body 43 forms a jaw 42 on the side wall outside the liquid tank 3, and the telescopic clamping rod 4 is fixed with a wear-resistant layer 41 on the side close to the jaw 42.

[0029] The implementation principle of the embodiment of the present application is that when the product is used, the base 1 is moved to below the workpiece, the two clamp bodies 2 are respectively located on both sides of the workpiece, the telescopic electric cylinder 5 starts to work to drive the liquid pushing plate 9 to extrude the liquid enclosed in the hydraulic area 31, thereby uniformly applying force to the plurality of telescopic clamping rods 4 to move them outward and fully contact the surface of the workpiece, and compatible with different shapes of workpieces, while in the extrusion process, the reverse pressure applied by the workpiece to the telescopic clamping rod 4 is sequentially conducted to the spring 62 along the liquid pushing plate 9, the piston 7 and the pushing plate 63, and is detected by the pressure sensor 64 after sensing, and the telescopic electric cylinder 5 is automatically controlled to extend and retract by the control board 11, so that the pressure is always kept within the preset range, and the workpiece is not easy to be damaged;

[0030] When individual telescopic clamping rods 4 need to be replaced due to wear, the external forceps are used to align the forceps 42 on the telescopic clamping rod 4 to be replaced, the forceps are rotated to rotate the telescopic clamping rod 4, the threaded part 44 moves outward along the threaded inner wall to disengage from the liquid tank 3, and the elastic wide part 46 is synchronously moved outward by overcoming the elastic force between the elastic wide part 46 and the elastic water stop plate 8, then the new telescopic clamping rod 4 is screwed into the inside of the liquid tank 3, and the independent installation and removal of the telescopic clamping rod 4 is realized, which is not easy to cause waste.

[0031] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An automated mechanical clamp comprising a base (1) and a clamp body (2), the clamp body (2) is two in number and symmetrically arranged on the base (1), characterized in that: The clamp body (2) is a hollow cavity, and any one of the clamp bodies (2) is sequentially provided with a telescopic electric cylinder (5), a pressure sensing structure (6), a piston (7) and a liquid tank (3), one end of the piston (7) is inserted into the liquid tank (3) and is fixedly provided with a liquid pushing plate (9), a hydraulic area (31) is formed at the front end position of the liquid tank (3) inside the liquid pushing plate (9), and a plurality of telescopic clamping rods (4) are inserted into one end of the liquid tank (3), the telescopic clamping rod (4) comprises a threaded portion (44), an elastic narrow portion (45) and an elastic wide portion (46) located in the hydraulic area (31).

2. An automated mechanical gripper as claimed in claim 1, wherein: The pressure sensing structure (6) comprises a base plate (61), springs (62), a pressing plate (63) and a pressure sensor (64), the base plate (61) is a rectangular plate fixedly connected to the telescopic end of the telescopic electric cylinder (5), the number of the springs (62) is four and located on the other end of the base plate (61), the other end of the spring (62) is fixedly connected to the pressing plate (63), and the pressure sensor (64) is embedded on the base plate (61) and corresponds to the same number of springs (62) one by one.

3. An automated mechanical gripper as claimed in claim 1, wherein: The telescopic clamping rod (4) further comprises a clamping rod body (43), the threaded portion (44) is located at one end of the clamping rod body (43), the liquid tank (3) and the clamping rod body (43) contact position forms a threaded inner wall matched with the threaded portion (44), the elastic narrow portion (45) is located on the other end of the threaded portion (44) and the number is two groups, the elastic wide portion (46) is located between the two groups of elastic narrow portions (45), the elastic narrow portion (45) and the elastic wide portion (46) are both made of rubber material, the diameter of the clamping rod body (43), the threaded portion (44) and the elastic narrow portion (45) is the same, the diameter of the elastic wide portion (46) is larger than that of the elastic narrow portion (45), the liquid tank (3) is further fixedly provided with an elastic water isolation plate (8) matched with the elastic narrow portion (45) on the side close to the threaded inner wall, and the clamping rod body (43) is located on the side wall outside the liquid tank (3) to form a jaw (42).

4. The automated mechanical gripper of claim 1, wherein: The telescopic clamping rod (4) is fixedly provided with a wear-resistant layer (41) on the end away from the liquid tank (3).

5. The automated mechanical gripper of claim 1, wherein: The hydraulic area (31) is filled with liquid, the liquid pushing plate (9) is a water-proof rubber plate, and the liquid pushing plate (9) moves to the telescopic clamping rod (4) direction to extrude the liquid in the hydraulic area (31), so as to push the telescopic clamping rod (4) to move outward.

6. An automated mechanical gripper as claimed in claim 1, wherein: The base (1) is provided with a control panel (11), and the control panel (11) is electrically connected with the telescopic electric cylinder (5) and the pressure sensing structure (6).

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