CN210524524U

CN210524524U - Pneumatic clamping tool

Info

Publication number: CN210524524U
Application number: CN201921438692.2U
Authority: CN
Inventors: 常明远
Original assignee: Kunshan Deruite Precision Machinery Co Ltd
Current assignee: Kunshan Deruite Precision Machinery Co Ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-05-15
Anticipated expiration: 2029-08-31

Abstract

The utility model discloses a pneumatic clamping tool, which consists of a square base, a rotating platform, four groups of pneumatic clamping arms and four groups of lifting cylinders, wherein the base is fixed on the table surface of the rotating platform, the four groups of pneumatic clamping arms are respectively arranged on four side walls of the base, and the four groups of lifting cylinders are respectively arranged on four sides of the base; the pneumatic clamping arm comprises a fixed arm, a movable arm, a horizontal cylinder and a horizontal sliding rail, the horizontal sliding rail is fixed on the side wall of the base, the fixed arm is fixed on the side wall of the base, the movable arm is connected to the sliding rail in a sliding mode, and the horizontal cylinder drives the movable arm to move horizontally; the fixed arm is similar with the structure of digging arm, mainly comprises base plate, vertical slide rail and splint, and the bottom of fixed arm, digging arm is connected through a plate, and the lift cylinder is located the below of plate. The utility model discloses a pneumatic centre gripping arm that lift cylinder drove to correspond goes up and down to required height, so just need not to go the working part height of adjustment lock screw machine and welding machine, not only saves time but also laborsaving.

Description

Pneumatic clamping tool

Technical Field

The utility model belongs to the technical field of automatic assembly equipment, pneumatic centre gripping frock is related to.

Background

Generally, a clamping fixture for positioning a workpiece is disposed in a conveyor belt of an assembly line, so as to improve the assembly efficiency of the workpiece. The clamping jig is formed by assembling various processed metal plates, power components such as cylinders and the like, the processes of locking screws, welding and the like of the large-scale clamping jig are generally automatically completed by automation equipment, and the transfer of the jig in each automation equipment mainly depends on the pneumatic clamping jig.

The clamping height of the existing pneumatic clamping work can not be adjusted according to the specific height of the clamping jig, the height of the screw locking device and the height of the welding device can only be adjusted, and once the positions of the screw locking device and the working part of the welding device are moved, the screw locking device and the working part of the welding device need to be calibrated again, so that time and labor are wasted very much.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pneumatic centre gripping frock that centre gripping height can be adjusted.

In order to achieve the above purpose, the utility model provides a technical scheme as follows:

the pneumatic clamping tool comprises a square base, a rotating table, four groups of pneumatic clamping arms and four groups of lifting cylinders, wherein the base is fixed on the table top of the rotating table, the four groups of pneumatic clamping arms are respectively installed on four side walls of the base, and the four groups of lifting cylinders are respectively arranged on four sides of the base; the pneumatic clamping arm comprises a fixed arm, a movable arm, a horizontal cylinder and a horizontal sliding rail, the horizontal sliding rail is fixed on the side wall of the base, the fixed arm is fixed on the side wall of the base, the movable arm is connected to the sliding rail in a sliding mode, and the horizontal cylinder drives the movable arm to move horizontally; the fixing arm mainly comprises a first base plate, a first vertical sliding rail and a first clamping plate, the first base plate is fixed on the side wall of the base, the first vertical sliding rail is fixed on the side face of the first base plate, and the first clamping plate is connected to the first vertical sliding rail in a sliding mode; the movable arm mainly comprises a second substrate, a second vertical sliding rail and a second clamping plate, the second substrate is connected to the horizontal sliding rail in a sliding mode, the second vertical sliding rail is fixed to the side face of the second substrate, and the second clamping plate is connected to the second vertical sliding rail in a sliding mode; the bottoms of the first clamping plate and the second clamping plate are connected through a plate, and the lifting cylinder is positioned below the plate; each side of the base is provided with a supporting plate positioned below the plate.

Furthermore, a positioning hole is formed in the plate, and a positioning needle matched with the positioning hole is arranged at the top of a piston rod of the lifting cylinder.

Further, the two clamping plates comprise a movable plate and a fixed plate, the movable plate is connected with the fixed plate through a guide pillar bushing assembly, and a spring is arranged between the movable plate and the fixed plate.

Further, the rotating table is a multi-station rotating table.

Further, the base is formed by welding square steel.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the corresponding pneumatic clamping arm is driven to lift to the required height through the lifting cylinder, so that the heights of working parts of the screw locking machine and the welding machine do not need to be adjusted, and time and labor are saved;

2. the four jigs can be assembled simultaneously through four groups of pneumatic clamping arms and a rotating platform, and the assembling efficiency of the jigs is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a front view of a pneumatic clamping tool disclosed in the embodiments;

FIG. 2 is a block diagram of the pneumatic gripper arm disclosed in the embodiment;

FIG. 3 is a side view of the lift cylinder and plate disclosed in the examples;

FIG. 4 is a positional placement diagram of the pneumatic clamping fixture disclosed in the examples;

fig. 5 is a structural view of the movable arm disclosed in the embodiment.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Examples

Please refer to the pneumatic clamping tool shown in fig. 1, which comprises a square base 10, a rotating table 20, four sets of pneumatic clamping arms 30 and four sets of lifting cylinders (not shown in the figure), wherein the base 10 is fixed on the table top of the rotating table 20, the four sets of pneumatic clamping arms 30 are respectively installed on four side walls of the base 10, and the four sets of lifting cylinders are respectively installed on four sides of the base 10. Referring to fig. 2, the pneumatic clamping arm 30 includes a fixed arm 31, a movable arm 32, a horizontal cylinder 33 and a horizontal slide rail 34, the horizontal slide rail 34 is fixed on the side wall of the base 10, the fixed arm 31 is fixed on the side wall of the base 10, the movable arm 32 is slidably connected to the horizontal slide rail, and the horizontal cylinder 33 drives the movable arm 32 to move horizontally; the fixing arm 31 mainly comprises a first base plate 311, a first vertical sliding rail 312 and a first clamping plate 313, wherein the first base plate is fixed on the side wall of the base 10, the first vertical sliding rail is fixed on the side surface of the first base plate, and the first clamping plate is connected to the first vertical sliding rail in a sliding manner; the movable arm 32 mainly comprises a second base plate 321, a second vertical sliding rail 322 and a second clamping plate 323, the second base plate is connected to the horizontal sliding rail 34 in a sliding mode, the second vertical sliding rail is fixed to the side face of the second base plate, and the second clamping plate is connected to the second vertical sliding rail in a sliding mode; the bottoms of the first clamping plate and the second clamping plate are connected through a plate 35, the lifting cylinder is located below the plate, a positioning hole is formed in the plate, and a positioning pin 50 (see fig. 3) matched with the positioning hole is arranged at the top of a piston rod of the lifting cylinder 40. A pallet is provided on each side of the base 10 below the plate members.

Referring to fig. 4, the pneumatic clamping tool is arranged between the stations A, B, C, D, a screw locking machine is placed at the station a, a welding machine is placed at the station B, the station C is a blanking station, and the station D is a feeding station. When the pneumatic clamping tool with the jig rotates to the station A from the station D, the piston rod of the corresponding lifting cylinder extends out to lift the pneumatic clamping tool by a distance h1, after the screw locking process is completed, the piston rod of the lifting cylinder retracts, and the pneumatic clamping tool falls back to the supporting plate; when the pneumatic clamping tool rotates to a station B, the corresponding lifting cylinder lifts the pneumatic clamping tool by a distance h2, after welding is completed, a piston rod of the lifting cylinder retracts, and the pneumatic clamping tool falls back to the supporting plate; when the pneumatic clamping tool rotates to a station C, the piston rod of the corresponding lifting cylinder extends out to lift the pneumatic clamping tool by a distance h3, after the blanking of the tool is completed, the piston rod of the lifting cylinder retracts, and the pneumatic clamping tool falls back to the supporting plate; when the pneumatic clamping tool rotates to the station D, the piston rod of the corresponding lifting cylinder extends out to lift the pneumatic clamping tool by a distance h4, after the feeding of the tool is completed, the piston rod of the lifting cylinder retracts, and the pneumatic clamping tool falls back to the supporting plate.

If the height of a certain station does not need to be changed, the corresponding lifting cylinder does not work.

The rotary table 20 may rotate a four-station rotary table, which can precisely control the rotation angle of the pneumatic clamping tool.

The base 10 is formed by welding square steel. The square steel has a certain strength, and can reduce the load of the rotary table 20, and more importantly, can absorb the vibration of the jig in the assembling process.

The pneumatic clamping tool provided by the embodiment can be used in the tool assembling process and also can be used in the production or assembling process of workpieces, and if the pneumatic clamping tool is used for clamping the workpieces, the second clamping plate can be set to be a movable elastic structure, so that the workpieces can be prevented from being damaged by clamping. The second clamping plate 323 includes a movable plate 3231 and a fixed plate 3232, the movable plate is connected to the fixed plate by a guide pillar bushing assembly, and a spring 3233 is disposed between the movable plate and the fixed plate.

Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The pneumatic clamping tool is characterized by comprising a square base, a rotating table, four groups of pneumatic clamping arms and four groups of lifting cylinders, wherein the base is fixed on the table top of the rotating table, the four groups of pneumatic clamping arms are respectively arranged on four side walls of the base, and the four groups of lifting cylinders are respectively arranged on four sides of the base; the pneumatic clamping arm comprises a fixed arm, a movable arm, a horizontal cylinder and a horizontal sliding rail, the horizontal sliding rail is fixed on the side wall of the base, the fixed arm is fixed on the side wall of the base, the movable arm is connected to the sliding rail in a sliding mode, and the horizontal cylinder drives the movable arm to move horizontally; the fixing arm mainly comprises a first base plate, a first vertical sliding rail and a first clamping plate, the first base plate is fixed on the side wall of the base, the first vertical sliding rail is fixed on the side face of the first base plate, and the first clamping plate is connected to the first vertical sliding rail in a sliding mode; the movable arm mainly comprises a second substrate, a second vertical sliding rail and a second clamping plate, the second substrate is connected to the horizontal sliding rail in a sliding mode, the second vertical sliding rail is fixed to the side face of the second substrate, and the second clamping plate is connected to the second vertical sliding rail in a sliding mode; the bottoms of the first clamping plate and the second clamping plate are connected through a plate, and the lifting cylinder is positioned below the plate; each side of the base is provided with a supporting plate positioned below the plate.

2. The pneumatic clamping tool according to claim 1, wherein a positioning hole is formed in the plate, and a positioning pin matched with the positioning hole is arranged at the top of a piston rod of the lifting cylinder.

3. The pneumatic clamping tool of claim 1, wherein the clamp plate includes a movable plate and a fixed plate, the movable plate is connected to the fixed plate by a guide post bushing assembly, and a spring is disposed between the movable plate and the fixed plate.

4. The pneumatic clamping tool of claim 1, wherein the rotary table is a multi-station rotary table.

5. The pneumatic clamping tool of claim 1, wherein the base is welded from square steel.