CN207480096U - A kind of rack-and-pinion synchronous fixture - Google Patents

Abstract

The utility model discloses a rack-type synchronous fixture, which comprises a clamp seat. The inner cavity of the clamp seat is provided with double-sided rack bars. The upper ends of the double-sided rack bars pass through the top of the clamp seat and rotate The joint is connected with a rotating joint fixing rod, and the two sides of the inner cavity of the clamp seat are equipped with synchronous clamps through pin shafts. Protrude from both sides of the clamp seat, and the bottom of the synchronous clamp is equipped with a clamp block. The utility model has a simple structure and is convenient for installation and maintenance. The fixed rod of the rotary joint is rotated and lifted to drive the rotation of the rack rods on both sides. As mentioned, because the inside of the upper end of the synchronous clamp is engaged with the double-sided rack bar, the lower end of the synchronous clamp moves inward synchronously, so that the clamp block realizes synchronous clamping of the workpiece, high bearing capacity, and clamping of the workpiece The effect is good.

Description

A rack-type synchronous fixture

technical field

The utility model relates to the technical field of clamps, in particular to a rack-type synchronous clamp.

Background technique

It is a device used to fix the processing object in the process of mechanical manufacturing so that it occupies the correct position to accept construction or inspection. In a broad sense, any process in the process, the device used to install the workpiece quickly, conveniently and safely, can be called a fixture. Such as welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common, often referred to as fixtures.

When processing a workpiece on an automatic machine tool, in order to make the surface of the workpiece meet the technical requirements of the size, geometric shape, and position accuracy with other surfaces specified in the drawing, the workpiece must be installed and clamped before processing.

The fixture usually consists of a positioning element (to determine the correct position of the workpiece in the fixture), a clamping device, a tool setting guide element (to determine the relative position of the tool and the workpiece or to guide the direction of the tool), and an indexing device (to enable the workpiece to be positioned in one installation. Complete the processing of several stations, there are two types of rotary indexing device and linear moving indexing device), connecting elements and clamp body (fixture base) and so on.

The structure of the existing rack-type fixture is relatively complicated, and maintenance is inconvenient, and the clamps are not synchronous in clamping the workpiece, which easily causes the workpiece to fall off.

For this reason, we introduce a rack-type synchronous clamp.

Utility model content

The purpose of this utility model is to provide a rack-type synchronous clamp to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a rack-type synchronous clamp, including a clamp seat, the inner cavity of the clamp seat is provided with a double-sided rack bar, and the double-sided rack bar The upper end runs through the top of the clamp seat and is connected with the rotary joint fixing rod through the rotary joint. Synchronous clamps are installed on both sides of the inner cavity of the clamp seat through pin shafts. , the lower end of the synchronous clamp protrudes from both sides of the clamp seat, and a clamp block is installed at the bottom of the synchronous clamp.

Preferably, the inner surface of the clamp block is provided with non-slip soft pads.

Preferably, the double-sided rack bar is located in the middle of the inner cavity of the clamp seat.

Preferably, the synchronous clamps are symmetrically arranged left and right.

Compared with the prior art, the beneficial effect of the utility model is that the utility model has a simple structure and is convenient for installation and maintenance. The utility model is lifted up through the rotation of the fixed rod of the rotary joint, which drives the rotation of the rack bar on both sides to be lifted up. Due to the synchronous clamp The inner side of the upper end meshes with the rack rods on both sides, so that the lower end of the synchronous clamp moves inward synchronously, and then the clamp block realizes synchronous clamping of the workpiece, with high bearing capacity and good clamping effect on the workpiece.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1 rotating joint, 2 clamp seat, 3 double-sided rack rod, 4 pin shaft, 5 synchronous clamp, 6 clamping block, 7 rotating joint fixed rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figure 1, the utility model provides a technical solution: a rack-type synchronous clamp, including a clamp seat 2, the inner cavity of the clamp seat 2 is provided with a double-sided rack rod 3, and the double-sided The upper end of the rack bar 3 runs through the top of the clamp seat 2 and is connected to the rotary joint fixed rod 7 through the rotary joint 1. The inner cavity sides of the clamp seat 2 are equipped with synchronous clamps 5 through pin shafts 4. The synchronous clamps The inner side of the upper end of the pliers 5 meshes with the double-sided rack bar 3, and the lower end of the synchronous tongs 5 stretches out from both sides of the clamp seat 2, and the bottom of the synchronous tongs 5 is equipped with a clamp block 6, and the clamps The inner surface of the clamp block 6 is provided with a non-slip soft pad, the double-sided rack bar 3 is located in the middle of the inner cavity of the clamp seat 2, and the synchronous clamp 5 is symmetrically arranged on the left and right.

Specifically, when in use, the rotating joint fixed rod 7 is rotated and lifted, which drives the rotation of the double-sided rack bar 3 to be lifted. Since the inner side of the upper end of the synchronous clamp 5 is engaged with the double-sided rack bar 3, the synchronous clamp 5 The lower ends of the clamps move inward synchronously, so that the clamp block 6 realizes synchronous clamping of the workpiece.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. A rack-type synchronous clamp, comprising a clamp seat (2), is characterized in that: the inner chamber of the clamp seat (2) is provided with a double-sided rack bar (3), and the double-sided rack The upper end of the rod (3) runs through the top of the clamp seat (2) and is connected with the rotary joint fixing rod (7) through the rotary joint (1), and the two sides of the inner cavity of the clamp seat (2) are installed through the pin shaft (4) There is a synchronous clamp (5), the inner side of the upper end of the synchronous clamp (5) meshes with the rack bar (3) on both sides, and the lower end of the synchronous clamp (5) protrudes from both sides of the clamp seat (2). On the side, a clamp block (6) is installed at the bottom of the synchronous clamp (5). 2. A rack-type synchronous clamp according to claim 1, characterized in that: the inner surface of the clamp block (6) is provided with a non-slip cushion. 3. A rack-type synchronous clamp according to claim 1, characterized in that: the double-sided rack rod (3) is located in the middle of the inner cavity of the clamp seat (2). 4. A rack-type synchronous clamp according to claim 1, characterized in that: the synchronous clamps (5) are symmetrically arranged left and right.