CN221290921U - A bidirectional clamping device suitable for small spaces - Google Patents

Abstract

The utility model discloses a bidirectional clamping device suitable for a small space, characterized in that: the device comprises a support frame (1), a driving cylinder (2) is arranged at the bottom of the support frame (1), a connecting seat (3) is arranged at the end of the working shaft of the driving cylinder (2), and the connecting seat (3) is rotatably connected to the bottom ends of the first pressing plate (5) and the second pressing plate (6) through a rotating shaft (4), a limiting shaft bracket (7) is arranged on the support frame (1), and a limiting shaft (8) is fixedly supported on the limiting shaft bracket (7), the first pressing plate (5) and the second pressing plate (6) are distributed in a mirror image with each other, and a guide groove (9) is opened in the middle of the first pressing plate (5) and the second pressing plate (6), and the limiting shaft (8) is movably connected in the guide groove (9), and the top ends of the first pressing plate (5) and the second pressing plate (6) are both provided with a horizontal clamping portion (10).

Description

A bidirectional clamping device suitable for small spaces

Technical Field

The utility model relates to the field of tooling fixtures, in particular to a bidirectional pressing device suitable for a small space.

Background technique

When processing a workpiece, it is first necessary to use a fixture to clamp and fix the workpiece before specific operations can be performed. The common fixtures on the market currently have standardized motion units, and the range of motion trajectory of their actuators (pressure blocks, pressure plates, etc.) in space is relatively large. Normal clamping operations can be achieved under working conditions without space restrictions, but for certain working conditions in narrow spaces, traditional fixtures are often difficult to clamp. It is often necessary to install complex auxiliary structures on traditional fixtures to extend the pressure blocks into the narrow space and clamp them. This not only increases the manufacturing cost and difficulty of the fixture, but also often leads to insufficient clamping force.

However, in some working conditions, bidirectional compression is required, which makes the design more difficult.

Therefore, a method or device capable of solving the above problems is now needed.

Summary of the invention

The utility model aims to solve the above-mentioned deficiencies in the prior art and proposes a device with simple structure, ingenious design, reasonable layout, small action radius of the execution end and suitable for realizing bidirectional pressing operation in a small space.

The technical solution of the utility model is: a bidirectional clamping device suitable for a small space, characterized in that: the device comprises a support frame 1, a driving cylinder 2 is arranged at the bottom of the support frame 1, a connecting seat 3 is arranged at the end of the working shaft of the driving cylinder 2, the connecting seat 3 is rotatably connected with the bottom ends of the first pressing plate 5 and the second pressing plate 6 at the same time through a rotating shaft 4, a limiting shaft bracket 7 is arranged on the support frame 1, a limiting shaft 8 is fixedly supported on the limiting shaft bracket 7, the first pressing plate 5 and the second pressing plate 6 are symmetrically distributed, and guide grooves 9 are opened in the middle of the first pressing plate 5 and the second pressing plate 6, the limiting shaft 8 is movably connected in the guide groove 9, and the tops of the first pressing plate 5 and the second pressing plate 6 are both provided with horizontal clamping parts 10.

The axis of the guide groove 9 is an arc.

The axes of the guide groove 9 are two straight lines which are at an angle to each other, and the angle between the two straight lines is in the range of 150-170°.

Compared with the prior art, the utility model has the following advantages:

This type of bidirectional clamping device suitable for small spaces has a simple structure, ingenious design, and reasonable layout. It is designed to solve various problems when traditional clamps are installed in narrow spaces. It uses a driving cylinder to drive the two pressing plates to move longitudinally, and uses the relative movement between the guide groove on the pressing plate and the fixed limit shaft to drive the pressing plate to swing while moving longitudinally, thereby realizing the synchronous clamping action of the two pressing plates. In this structure, the movement radius of the pressing plate is relatively small, and the required reserved movement space is also small, so it can be used for clamping conditions in small spaces. At the same time, the two pressing plates on it are distributed in a mirror image, so a bidirectional clamping operation can be realized. This device has a simple manufacturing process and low manufacturing cost, so it can be said that it has many advantages and is particularly suitable for promotion and application in this field, and its market prospects are very broad.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of an embodiment of the utility model (in a compressed state).

FIG. 2 is a schematic diagram of the three-dimensional structure of an embodiment of the utility model (non-pressed state).

Support frame 1, driving cylinder 2, connecting seat 3, rotating shaft 4, first pressing plate 5, second pressing plate 6, limiting shaft bracket 7, limiting shaft 8, guide groove 9, horizontal pressing part 10.

Detailed ways

The specific implementation mode of the utility model will be described below in conjunction with the accompanying drawings as follows: as shown in Figures 1 and 2, a bidirectional clamping device suitable for a small space comprises a support frame 1 as a basis, a driving cylinder 2 is arranged at the bottom of the support frame 1, a connecting seat 3 is arranged at the end of the working shaft of the driving cylinder 2, and the connecting seat 3 is rotatably connected to the bottom ends of the first pressing plate 5 and the second pressing plate 6 at the same time through a rotating shaft 4, a limiting shaft bracket 7 is arranged on the support frame 1, and a limiting shaft 8 is fixedly supported on the limiting shaft bracket 7, the first pressing plate 5 and the second pressing plate 6 are symmetrically distributed, and guide grooves 9 are opened in the middle of the first pressing plate 5 and the second pressing plate 6, the limiting shaft 8 is movably connected in the guide groove 9, and the tops of the first pressing plate 5 and the second pressing plate 6 are both provided with horizontal clamping portions 10.

The axis of the guide groove 9 is an arc, or two straight lines forming an angle with each other, and the angle between the two straight lines is in the range of 150-170°.

The working process of the bidirectional clamping device for small space of the embodiment of the utility model is as follows: in the initial state, the working shaft of the driving cylinder 2 is in the extended state, at which time the first clamping plate 5 and the second clamping plate 6 are in the non-clamping state;

When it is necessary to clamp the workpiece, a signal is sent to the drive cylinder 2 in the device through the control system, and the drive cylinder 2 drives the connecting seat 3 to retract, and the connecting seat 3 will pull the first pressing plate 5 and the second pressing plate 6 connected thereto downward at the same time. When the first pressing plate 5 and the second pressing plate 6 move, since the limit shaft 8 is relatively fixed, the guide groove 9 on the two pressing plates will move relative to the limit shaft. Since the axis of the guide groove 9 is an arc or two straight lines at an angle to each other, under the guiding action of the guide groove 9, the two pressing plates will swing around the rotating shaft 4 during the movement, and the amplitude and trajectory of the swing are determined by the axis of the guide groove 9; at the same time, since the two pressing plates are distributed in a mirror image, they will synchronously perform clamping operations from two directions, thereby realizing bidirectional clamping; since the movement radius of the two pressing plates is relatively small, they can be installed in a relatively narrow space;

When the working axis of the driving cylinder 2 is completely retracted, the horizontal pressing parts 10 at the top ends of the first pressing plate 5 and the second pressing plate 6 are pressed against the surface of the workpiece to clamp the workpiece.

After the workpiece is processed, the driving cylinder 2 drives the connecting seat 3 upward, and the first pressing plate 5 and the second pressing plate 6 swing in opposite directions, and the horizontal pressing parts 10 at their top ends are lifted to release the workpiece.

Claims (3)

1. A bidirectional clamping device suitable for a small space, characterized in that: the device comprises a support frame (1), a driving cylinder (2) is arranged at the bottom of the support frame (1), a connecting seat (3) is arranged at the end of the working shaft of the driving cylinder (2), and the connecting seat (3) is rotatably connected to the bottom ends of the first pressing plate (5) and the second pressing plate (6) through a rotating shaft (4), a limiting shaft bracket (7) is arranged on the support frame (1), and a limiting shaft (8) is fixedly supported on the limiting shaft bracket (7), the first pressing plate (5) and the second pressing plate (6) are symmetrically distributed, and a guide groove (9) is opened in the middle of the first pressing plate (5) and the second pressing plate (6), and the limiting shaft (8) is movably connected in the guide groove (9), and the top of the first pressing plate (5) and the second pressing plate (6) are both provided with a horizontal clamping portion (10). 2. The bidirectional clamping device suitable for small spaces according to claim 1, characterized in that the axis of the guide groove (9) is an arc. 3. The bidirectional clamping device suitable for small spaces according to claim 1 is characterized in that the axes of the guide groove (9) are two straight lines that form an angle with each other, and the angle between the two straight lines ranges from 150 to 170°.