CN204748120U - Pneumatic clamp - Google Patents

Abstract

The utility model belongs to the technical field of machinery and particularly designs a pneumatic clamp. A pneumatic clamp, comprising a base, two vertical plates are fixedly connected to the base, a first chuck is fixedly connected to one of the vertical plates, and a propulsion cylinder is fixed to the other vertical plate, and the piston rod of the propelling cylinder penetrates The vertical plate is fixedly connected with a second chuck at the end of the piston rod of the propelling cylinder, and the second chuck is arranged symmetrically with the first chuck and is on the same horizontal plane. All have concave conical surfaces, and the two conical surfaces are on the same center line. On the conical surface of the first chuck, there are evenly distributed first jaws arranged at intervals up and down. On the second chuck There are a number of second jaws evenly distributed up and down horizontally spaced on the cone surface, the first jaws and the second jaws are alternately arranged, and the thickness of the first jaws is slightly smaller than the distance between two adjacent second jaws. The thickness of the second jaws is slightly smaller than the distance between two adjacent first jaws.

Description

a pneumatic clamp

technical field

The utility model belongs to the technical field of machinery and particularly designs a pneumatic clamp.

Background technique

When the machine tool is processing the workpiece, it is necessary to clamp the workpiece first so that the workpiece can be processed conveniently. The existing clamps are usually manually operated. The clamp includes a base, a handle and two clamps. A vertical plate is fixed on the base. The handle runs through the vertical plate and is connected with one clamp, and the other clamp is fixed on the base. , when the workpiece needs to be clamped, the worker has to turn the handle so that the collet connected with the handle moves and finally clamps the workpiece. This is not only time-consuming and laborious, and the work efficiency is low, but also increases the work intensity of the workers.

Contents of the invention

The purpose of this utility model is to propose a time-saving, labor-saving and high-efficiency pneumatic clamp for the above-mentioned problems in the existing technology.

The purpose of this utility model can be achieved through the following technical solutions:

A pneumatic clamp, comprising a base, two vertical plates are fixedly connected to the base, a first chuck is fixedly connected to one of the vertical plates, and a propulsion cylinder is fixed to the other vertical plate, and the piston rod of the propelling cylinder penetrates The vertical plate is fixedly connected with a second chuck at the end of the piston rod of the propelling cylinder, and the second chuck is arranged symmetrically with the first chuck and is on the same horizontal plane. All have concave conical surfaces, and the two conical surfaces are on the same center line. On the conical surface of the first chuck, there are evenly distributed first jaws arranged at intervals up and down. On the second chuck There are a number of second jaws evenly distributed up and down horizontally spaced on the cone surface, the first jaws and the second jaws are alternately arranged, and the thickness of the first jaws is slightly smaller than the distance between two adjacent second jaws. The thickness of the second jaws is slightly smaller than the distance between two adjacent first jaws.

When the workpiece needs to be clamped, first place the workpiece on the first chuck, then push the second chuck to move forward horizontally through the push cylinder, and finally firmly clamp the workpiece between the first chuck and the second chuck between. In this way, the workpiece is automatically clamped by advancing the cylinder, which can not save time and effort, improve work efficiency, and also reduce the work intensity of workers. Similarly, when the workpiece needs to be unloaded, it is only necessary to start the propelling cylinder again so that the propelling cylinder drives the second chuck to return to the initial position.

When the size of the workpiece is smaller than the distance between the bottom of the two cone surfaces after the two cone surfaces are closed, the chuck cannot hold the workpiece, so the first jaw on the first chuck and the second chuck First, place the workpiece on the first chuck, and then push the second chuck to move forward smoothly along the support plate through the push cylinder. When the distance between the opposite sides of the first chuck and the second chuck is zero At this time, the workpiece is still not firmly clamped by the first chuck and the second chuck. Since the first jaw and the second jaw are arranged alternately, the second chuck can continue to move towards the first chuck. At this time The second jaw is inserted into the gap between the two first jaws, similarly the first jaw is inserted into the gap between the two second jaws until the workpiece is clamped firmly by the first chuck and the second chuck .

Two supporting plates arranged in parallel are fixedly connected to the base, and the above-mentioned second clamping head abuts against the tops of the two supporting plates. In this way, when the propulsion cylinder drives the second chuck to move, the horizontal displacement of the second chuck is guided by the support plate, which ensures the stability of the entire clamp during work.

The two vertical boards are arranged in parallel and are vertically fixed on the base.

The said conical surface is a corrugated surface. In this way, when the workpiece is clamped by the first chuck and the second chuck, the drill bit can prevent the workpiece from rotating when processing the workpiece, thereby achieving the purpose of clamping the workpiece.

The said conical surface is a stepped surface.

The utility model has the advantages of: using the propulsion cylinder to control the movement of the second chuck to clamp the workpiece, which not only saves time and effort, but also reduces the work intensity of the workers and improves work efficiency. At the same time, a support plate is set on the base to Guiding the horizontal displacement of the second clamping head ensures the stability of the entire fixture during the working process.

Description of drawings

Fig. 1 is the structural representation of a kind of pneumatic clamp of the utility model;

Fig. 2 is the sectional structure schematic diagram of the utility model;

Fig. 3 is a schematic diagram of the structure of the first chuck in the utility model;

In the figure: 1, base 2, riser 3, first chuck 31, first jaw 4, second chuck

41. The second jaw 5, the support plate 6, the tapered surface 7, the propulsion cylinder 8, and the piston rod.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in Fig. 1 and Fig. 2, a pneumatic clamp of the utility model includes a plate-shaped base 1, and two parallel vertically upward vertical plates 2 are fixedly connected to the base 1, and one of the vertical plates A first chuck 3 is fixedly connected to the plate 2 , and a propelling cylinder 7 is fixedly connected to the other vertical plate 2 , and the piston rod 8 of the propelling cylinder 7 passes through the vertical plate 2 .

A second collet 4 is fixedly connected to the end of the piston rod 8, and the second collet 4 is arranged symmetrically with the first collet 3 and is on the same horizontal plane. Both the first chuck 3 and the second chuck 4 have concave conical surfaces 6 on the two opposite sides, and the two conical surfaces 6 are on the same center line, so that the workpiece can be clamped conveniently. The surface of the cone surface 6 is a wave surface, and the surface of the cone surface 6 can also be designed as a stepped surface according to the actual situation. In this way, when the workpiece is clamped by the first chuck 3 and the second chuck 4, the drill bit can prevent the workpiece from rotating when processing the workpiece, thereby achieving the purpose of clamping the workpiece.

When the size of the workpiece is smaller than the distance between the bottoms of the two cone surfaces 6 after the two cone surfaces 6 are closed, the chuck cannot hold the workpiece, so there are evenly distributed on the cone surface 6 of the first chuck 3 . The first jaws 31 arranged horizontally spaced up and down, and the second jaws 41 arranged horizontally spaced up and down are evenly distributed on the tapered surface 6 of the second chuck 4, and the first jaws 31 and the second jaws 41 are arranged alternately , and the thickness of the first jaw 31 is slightly smaller than the distance between two adjacent second jaws 41 , and the thickness of the second jaw 41 is slightly smaller than the distance between two adjacent first jaws 31 . In this way, when the size of the workpiece is less than the distance between the bottoms of the two cone surfaces 6 after the two cone surfaces 6 are closed, the workpiece is placed on the first chuck 3 first, and then the second chuck 4 is pushed along by the push cylinder 7. The support plate 5 moves forward smoothly horizontally. When the distance between the opposite sides of the first chuck 3 and the second chuck 4 is zero, the workpiece is still not firmly clamped by the first chuck 3 and the second chuck 4 , since the first jaw 31 and the second jaw 41 are arranged alternately, the second chuck 4 can continue to move toward the first chuck 3, and at this time, the second jaw 41 is inserted between the two first jaws 31 Similarly, the first jaw 31 is inserted into the gap between the two second jaws 41 until the workpiece is firmly clamped by the first chuck 3 and the second chuck 4 .

Two supporting plates 5 arranged in parallel are also fixedly connected on the base 1, and the second chuck 4 leans against the tops of the two supporting plates 5, so that when the propelling cylinder 7 drives the second chuck 4 to move, through the supporting plate 5 To guide the horizontal displacement of the second clamping head 4, to ensure the stability of the entire fixture in the working process.

When the workpiece needs to be clamped, the workpiece is first placed at the first chuck 3, and then the second chuck 4 is pushed forward by the push cylinder 7 to move horizontally along the support plate 5, and finally the workpiece is firmly clamped at the second chuck. Between the first chuck 3 and the second chuck 4 . The workpiece is clamped automatically by advancing the cylinder 7 like this, which can not save time and effort, improve work efficiency, and also alleviate the work intensity of the workman. Similarly, when the workpiece needs to be unloaded, it is only necessary to start the propelling cylinder 7 again so that the propelling cylinder 7 drives the second chuck 4 to return to the initial position.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Although the base 1, the riser 2, the first chuck 3, the first jaw 31, the second chuck 4, the second jaw 41, the support plate 5, the conical surface 6, the propulsion cylinder 7 and the terms such as piston rod 8, but does not exclude the possibility of using other terms. These terms are only used to describe and explain the essence of the utility model more conveniently; interpreting them as any kind of additional limitation is contrary to the spirit of the utility model.

Claims (5)

1. an air-actuated jaw, comprise base, it is characterized in that: describedly on base, be fixed with two risers, wherein a riser is fixed with the first chuck, another riser is fixed with a propulsion cylinder and the piston rod of propulsion cylinder runs through this riser, the second chuck is fixed with in propulsion cylinder piston rod end, second chuck and the first chuck are symmetrical arranged and are in same level, the side that first chuck is relative with the second chuck two all has the conical surface of indent, and the two described conical surfaces are in the same center line, the conical surface of the first chuck is evenly distributed with the first jaw that some upper and lower horizontal intervals are arranged, the conical surface of the second chuck is evenly distributed with the second jaw that some upper and lower horizontal intervals are arranged, first jaw and the second jaw are crisscross arranged, and the thickness of the first jaw is slightly less than the spacing between adjacent two second jaws, the thickness of the second jaw is slightly less than the spacing between adjacent two first jaws.

2. a kind of air-actuated jaw according to claim 1, is characterized in that: described base is also fixed with two gripper shoes be arranged in parallel, and the second above-mentioned chuck is resisted against the top of two gripper shoes.

3. a kind of air-actuated jaw according to claim 1 and 2, is characterized in that: two described risers be arranged in parallel and are all vertically fixed on base.

4. a kind of air-actuated jaw according to claim 1 and 2, is characterized in that: described conical surface surface is wavy surface.

5. a kind of air-actuated jaw according to claim 1 and 2, is characterized in that: described conical surface surface is step surface.