CN203712559U - Irregular object clamping tool - Google Patents

Abstract

The utility model relates to a clamping tool for irregular objects, comprising a base and a clamp installed on the base, the clamp includes at least two claws, each claw includes an outer The claw and the inner claw arranged in the outer claw, the inner claw is connected with the transmission rod passing through the outer claw, and a capsule body with an inlet and outlet is arranged in the inner claw. The utility model adopts the two-step method of pre-clamping of the clamp opening and closing mechanism and the main clamping of the transmission rod to clamp the irregular objects, and the pre-clamping adopts hydraulic pressure as the power to drive the movable claws. Static friction, thus driving the auxiliary table to move. In this way, it is more beneficial to ensure the accuracy of positioning. Using the elastic material to directly contact the irregular object is more conducive to avoiding damage to the clamped object and improving the stability of the clamping quality. The device is simple in clamping, convenient in operation, saves time and effort, and is beneficial to specialized production.

Description

Irregular object clamping tooling

technical field

The utility model relates to a clamping tool, in particular to a clamping tool for irregular objects.

Background technique

At present, enterprises process a lot of irregular objects, such as the processing of strange-shaped castings, the processing of mined stones, etc. At present, the common processing method is to carry out rough processing first, and process the parts that do not need to be processed as rough positioning devices. Clamp the datum, and then carry out the processing of the fine positioning and clamping datum. After the fine datum processing is completed, the clamping is performed again for the processing of other processes. This is not only a cumbersome process, but also difficult to guarantee the accuracy, which is time-consuming and labor-intensive. Take the clamping of sapphire crystal as an example: the sapphire crystal embryo grows in the growth furnace, and its shape is irregular, so the crystallization direction of the crystal embryo must be measured before the sapphire crystal embryo is cut, and then the crystal embryo is carried out according to the measured direction. Machining of the positioning surface (reference plane). The general method of processing the orientation surface of the crystal embryo is to place the crystal embryo on the orientation instrument, after measuring the crystallization direction of the embryo, draw the cutting plane line to be cut with an oil-based pen, and then transfer the crystal to the sawing machine, according to the orientation The drawn cutting line is used for positioning and clamping. Since the shape of the embryo grows out without certain rules, it has brought great difficulties to positioning and clamping. At present, enterprises use Manual positioning, manual clamping, and various materials are used to fill the surface of the irregular workpiece during clamping. There are clamping methods that greatly limit the automatic production of enterprises.

Contents of the invention

Aiming at the problems in the prior art, the utility model provides a clamping tool for irregular objects.

In order to solve the problems existing in the prior art, the technical solution adopted by the utility model is: clamping tool for irregular objects, including a base and a clamp installed on the base, the clamp includes at least two claws, each The jaws include outer jaws connected with the base and inner jaws arranged in the outer jaws, the inner jaws are connected with a transmission rod passing through the outer jaws, and a capsule body with an inlet and outlet is arranged in the inner jaws. When in use, there is enough gas in the capsule, and the gas can be released when not in use. The capsule directly contacts the surface of the irregular object, which increases the contact area with the clamped object, and is more conducive to protecting and clamping the object.

At least one outer claw is connected with the clamp opening and closing mechanism fixed on the base. This connection makes the clamp opening and closing mechanism and the device base integral.

At least one outer claw cooperates with the guide rail arranged on the base, the clamp opening and closing mechanism is an air cylinder or oil cylinder fixed on the base, the piston rod of the air cylinder or oil cylinder is parallel to the guide rail, and is connected to the outer claw arranged on the guide rail. claw connection. This structure is convenient for the piston rod to drive the outer claw on the guide rail to pre-clamp the object.

A flexible pad is provided on the opposite end surface of each claw. The flexible pads are fixed on the opposite end surfaces of the jaws by means of T-groove inlay and sticking.

Auxiliary workbenches are arranged on the guide rails between the claws. The auxiliary workbench is installed above the guide rail through a slide block, thereby ensuring that the auxiliary workbench can move freely along the guide rail.

There are two opposite claws on the base, one of which is a fixed claw fixed on the base, and the other is a movable claw. The outer claw of the movable claw is installed on the base through a guide rail, and the fixed claw on the base There is an air cylinder or oil cylinder, the piston rod of the air cylinder or oil cylinder is parallel to the guide rail, and its front end is connected with the outer claw of the movable claw.

The utility model adopts the two-step method of pre-clamping of the clamp opening and closing mechanism and the main clamping of the transmission rod to clamp the irregular objects, and the pre-clamping adopts hydraulic pressure as the power to drive the movable claws, and the movable claws push the irregular objects to the fixed The claws move in the direction, and the static friction force generated by the irregular object and the auxiliary worktable drives the auxiliary worktable to move along the guide rail, so that the positioning of the object during clamping will not be changed due to the clamping force of the object during the object clamping process, and the auxiliary work The free movement design of the table along the guide rail is more conducive to ensuring the accuracy of positioning during clamping. Using the elastic material to directly contact the irregular object increases the contact area between the clamp and the clamped object, improves the stability of the clamping quality, and avoids damage to the clamped object during rigid contact clamping. The device is simple in clamping, convenient in operation, saves time and effort, and is beneficial to specialized production.

Description of drawings

Fig. 1 is the main sectional view of the utility model;

Fig. 2 is the right view of the utility model;

Among them, 1. base, 2. guide rail, 3. outer claw, 4. movable claw, 5. inner claw, 6. capsule body, 7. transmission rod, 8. flexible pad, 9. fixed claw, 10, Auxiliary workbench, 11, piston rod, 12, clamp opening and closing mechanism.

Detailed ways

The irregular object clamping tool includes a base 1 and a clamp installed on the base 1. The clamp includes two opposite jaws, one of which is a fixed jaw 9 fixed on the base 1, and the other It is a movable jaw 4, each jaw includes an outer jaw 3 connected to the base 1 and an inner jaw 5 arranged in the outer jaw 3, the inner jaw 5 is connected with the transmission rod 7 passing through the outer jaw 3, and the inner jaw 5 A capsule body 6 with an inlet and outlet is provided. The outer claw 3 of the movable claw 4 is installed on the base 1 through the guide rail 2, and the fixed claw 9 is connected with the clamp opening and closing mechanism 12 fixed on the base 1. The clamp opening and closing mechanism 12 is a cylinder or an oil cylinder, and the cylinder Or the piston rod 11 of the oil cylinder is parallel to the guide rail 2, and its front end is connected with the outer claw 3 of the movable claw 4. A flexible pad 8 is provided on the opposite end surfaces of the two claws, and an auxiliary workbench 10 is arranged on the guide rail 2 between the two claws.

Irregular objects are hoisted onto the auxiliary workbench 10 of the device, press the clamping button of the cylinder or oil cylinder, the movable claw 4 is driven by the piston rod 11 to pre-clamp the irregular objects, and the auxiliary workbench 10 follows the clamped The object slides along the guide rail 2 to the fixed claw 9; after the pre-clamping is completed, check whether the positioning is accurate, and if it is accurate, the capsule body 6 is used to precisely clamp the object through the transmission rod 7, and then the next processing can be carried out.

Claims (6)

1. Irregular object clamping tooling, including a base (1) and a clamp installed on the base (1), characterized in that: the clamp includes at least two jaws, and each jaw includes a (1) The connected outer claw (3) and the inner claw (5) arranged in the outer claw (3), the inner claw (5) is connected with the transmission rod (7) passing through the outer claw (3), the inner claw (5) ) is provided with a capsule (6) with an inlet and outlet. 2. The tool for clamping irregular objects according to claim 1, characterized in that at least one outer claw (3) is connected to the clamp opening and closing mechanism (12) fixed on the base (1). 3. The clamping tool for irregular objects according to claim 2, characterized in that: at least one outer claw (3) cooperates with the guide rail (2) arranged on the base (1), and the opening and closing mechanism of the clamp (12) is a cylinder or an oil cylinder fixed on the base (1), and the piston rod (11) of the cylinder or the oil cylinder is parallel to the guide rail (2) and connected with the outer claw (3) arranged on the guide rail (2). 4. The irregular object clamping tool according to claim 1 or 2, characterized in that: flexible pads (8) are provided on the opposite end surfaces of each jaw. 5. The clamping tool for irregular objects according to claim 4, characterized in that: an auxiliary workbench (10) is provided on the guide rail (2) between the claws. 6. The irregular object clamping tool according to claim 1 or 2, characterized in that: the base (1) is provided with two opposite claws, one of which is fixed on the base (1) Claw (9), the other is a movable claw (4), the outer claw (3) of the movable claw (4) is installed on the base (1) through the guide rail (2), and the base (1) is fixed with Cylinder or oil cylinder, the piston rod (11) of air cylinder or oil cylinder is parallel with guide rail (2), and its front end is connected with the outer claw (3) of movable claw (4).