CN213796136U

CN213796136U - Multi-station clamp

Info

Publication number: CN213796136U
Application number: CN202022748645.7U
Authority: CN
Inventors: 赵玲刚
Original assignee: Taizhou Eastern Cnc Technology Co ltd
Current assignee: Taizhou Eastern Cnc Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-07-27
Anticipated expiration: 2030-11-24
Also published as: WO2022110955A1

Abstract

The utility model provides a multistation anchor clamps belongs to mechanical technical field. The multi-station fixture comprises a support and positioning cylinders vertically arranged on the support, wherein elastic chucks are arranged in the positioning cylinders, the positioning cylinders are matched with the elastic chucks in a conical surface manner, at least two positioning cylinders are horizontally arranged in parallel, and each positioning cylinder is internally provided with the elastic chuck; a support cylinder is arranged below each positioning cylinder in parallel, the support cylinders are fixedly connected with the support, a push frame with a T-shaped axial section is vertically arranged in each support cylinder, each push frame consists of a head part and a rod part, the lower end of each rod part extends out of each support cylinder, and a butterfly spring enabling the head part to be pressed on the bottom wall of the elastic chuck is sleeved at the upper end of each rod part; the clamp also comprises a driving component which can simultaneously drive all the pushing frames to overcome the elasticity of the corresponding belleville springs to move downwards. The multi-station clamp can clamp a plurality of workpieces at one time.

Description

Multi-station clamp

Technical Field

The utility model belongs to the technical field of machinery, a anchor clamps, especially a multistation anchor clamps are related to.

Background

The jig is a device for fixing a processing object to occupy a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig.

The existing clamp can only clamp one workpiece, when a plurality of workpieces are machined when the clamp is needed, a plurality of sets of clamps need to be prepared for adaptation, and the clamp is complex in operation and structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems in the prior art, and provides a multi-station clamp capable of clamping a plurality of workpieces at one time.

The purpose of the utility model can be realized by the following technical proposal: a multi-station clamp comprises a support and positioning cylinders vertically arranged on the support, wherein elastic chucks are arranged in the positioning cylinders, and the positioning cylinders and the elastic chucks are matched by adopting conical surfaces; a support cylinder is arranged below each positioning cylinder in parallel, the support cylinders are fixedly connected with the support, a push frame with a T-shaped axial section is vertically arranged in each support cylinder, each push frame consists of a head part and a rod part, the lower end of each rod part extends out of each support cylinder, and a butterfly spring enabling the head part to be pressed on the bottom wall of the elastic chuck is sleeved at the upper end of each rod part; the clamp also comprises a driving component which can simultaneously drive all the pushing frames to overcome the elasticity of the corresponding belleville springs to move downwards.

When the clamping device is used, a workpiece is arranged in the elastic chuck, and the elastic chuck contracts inwards to clamp the workpiece under the action of the belleville spring; after the workpiece is machined, the driving assembly drives the pushing frame to move downwards to enable the elastic chuck to get rid of stress and loosen the workpiece, and the machined workpiece can be easily pulled out.

Under the cooperation of the driving assembly, the pushing frame and the belleville spring, a plurality of workpieces can be clamped or loosened simultaneously, so that the operation steps are effectively simplified, and the operation efficiency and the convenience are improved.

In foretell multistation anchor clamps, foretell drive assembly includes the connecting plate of level setting and is used for driving the driving piece of connecting plate translation from top to bottom, and all pole portion lower extremes all link firmly with the connecting plate, have simple structure, simple to operate's advantage.

In the multi-station clamp, the driving part is an air cylinder or an oil cylinder, and a piston rod of the air cylinder or the oil cylinder is fixedly connected with the connecting plate.

In the multi-station clamp, the inner wall of the support cylinder is integrally formed with the annular retaining shoulder, the belleville spring is positioned between the head and the annular retaining shoulder, and two ends of the belleville spring are respectively abutted against the annular retaining shoulder and the head.

In the multi-station fixture, the top wall of each positioning cylinder is vertically fixed with at least two limiting columns, the limiting columns are used for supporting workpieces, and the plurality of limiting columns on the same positioning cylinder are uniformly distributed along the circumferential direction of the positioning cylinder.

In foretell multistation anchor clamps, have the jack that sets up along vertical direction on the location section of thick bamboo roof, jack and spacing post quantity the same and position one-to-one, spacing post lower extreme is inserted and is established in the jack that corresponds, and just spacing post and a location section of thick bamboo closely cooperate and link firmly.

Compared with the prior art, the multi-station clamp has the following advantages:

1. under the cooperation of the driving assembly, the pushing frame and the belleville spring, a plurality of workpieces can be clamped or loosened simultaneously, so that the operation steps are effectively simplified, and the operation efficiency and the convenience are improved.

2. Spacing post both had been used for the mounted position of restriction work piece, was used for supporting the work piece again and improves its machining precision, promptly in this application, spacing post possesses the dual-purpose effect of an thing, has simple structure, the convenient advantage of equipment.

Drawings

Fig. 1 is a schematic perspective view of a multi-station jig.

Fig. 2 is a schematic sectional view of the multi-station jig.

In the figure, 1, a bracket; 2. a positioning cylinder; 3. an elastic collet; 4. a support cylinder; 4a, an annular retaining shoulder; 5. pushing the frame; 5a, a head; 5b, a rod part; 6. a belleville spring; 7. a workpiece; 8. a connecting plate; 9. a drive member; 10. a limiting column.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the multi-station fixture comprises a support 1 and a positioning cylinder 2 vertically arranged on the support 1, wherein a cylindrical elastic chuck 3 is arranged in the positioning cylinder 2, and the positioning cylinder 2 and the elastic chuck 3 are matched by conical surfaces. In this embodiment, the inner wall of the positioning cylinder 2 is a first conical surface with a diameter gradually increasing downwards, the outer wall of the collet 3 is a second conical surface matched with the first conical surface, and the first conical surface is in close contact with the second conical surface.

Specifically, at least two positioning cylinders 2 are horizontally arranged in parallel, and the elastic chuck 3 is arranged in each positioning cylinder 2. A supporting cylinder 4 is arranged below each positioning cylinder 2 in parallel, and the supporting cylinder 4 is fixedly connected with the support 1. In this embodiment, the positioning cylinder 2 is fixedly connected with the corresponding supporting cylinder 4. As shown in fig. 1, a pushing frame 5 with a T-shaped axial cross section is vertically arranged in the supporting cylinder 4, the pushing frame 5 is of an integrated structure, the pushing frame 5 is composed of a head part 5a and a rod part 5b, wherein the lower end of the rod part 5b extends out of the supporting cylinder 4, and the upper end of the rod part 5b is sleeved with a belleville spring 6 which enables the head part 5a to be pressed against the bottom wall of the collet 3; the clamp also comprises a driving component which can simultaneously drive all the pushing frames 5 to overcome the elasticity of the corresponding belleville springs 6 to move downwards. When the clamping device is used, the workpiece 7 is arranged in the elastic chuck 3, and the elastic chuck 3 contracts inwards to clamp the workpiece 7 under the action of the belleville spring 6; after the workpiece 7 is machined, the driving assembly drives the pushing frame 5 to move downwards so that the elastic chuck 3 is free from stress to loosen the workpiece 7, and the machined workpiece 7 can be easily pulled out.

In this embodiment, the driving assembly includes a connecting plate 8 horizontally disposed and a driving member 9 for driving the connecting plate 8 to move up and down, and the lower ends of all the rods 5b are fixedly connected to the connecting plate 8. The driving part 9 is a cylinder or an oil cylinder, and a piston rod of the cylinder or the oil cylinder is fixedly connected with the connecting plate 8. An annular retaining shoulder 4a is integrally formed on the inner wall of the support cylinder 4, and the annular retaining shoulder 4a and the support cylinder 4 are coaxially arranged. The belleville spring 6 is located between the head 5a and the annular shoulder 4a, and the two ends of the belleville spring 6 are respectively pressed against the annular shoulder 4a and the head 5 a.

Further explaining, as shown in fig. 1, at least two limiting columns 10 are vertically fixed on the top wall of each positioning cylinder 2, the limiting columns 10 are used for supporting the workpiece 7, and a plurality of limiting columns 10 on the same positioning cylinder 2 are uniformly distributed along the circumferential direction of the positioning cylinder 2. Preferably, two limit posts 10 are arranged on each positioning barrel 2.

In the present embodiment, the mounting manner of the restraining column 10 is as follows: the top wall of the positioning cylinder 2 is provided with jacks arranged along the vertical direction, the jacks and the limiting columns 10 are the same in quantity and are in one-to-one correspondence with each other in position, the lower ends of the limiting columns 10 are inserted into the corresponding jacks, and the limiting columns 10 and the positioning cylinder 2 are tightly matched and fixedly connected.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A multi-station clamp comprises a support (1) and positioning cylinders (2) vertically arranged on the support (1), wherein elastic chucks (3) are arranged in the positioning cylinders (2), and the positioning cylinders (2) and the elastic chucks (3) are matched in a conical surface manner, and the multi-station clamp is characterized in that at least two positioning cylinders (2) are horizontally arranged in parallel, and the elastic chucks (3) are arranged in each positioning cylinder (2); a support cylinder (4) is arranged below each positioning cylinder (2) in parallel, the support cylinders (4) are fixedly connected with the support (1), a push frame (5) with a T-shaped axial section is vertically arranged in each support cylinder (4), each push frame (5) consists of a head (5a) and a rod (5b), the lower end of each rod (5b) extends out of the corresponding support cylinder (4), and a butterfly spring (6) which enables the head (5a) to be pressed against the bottom wall of the elastic chuck (3) is sleeved at the upper end of each rod (5 b); the clamp also comprises a driving component which can simultaneously drive all the pushing frames (5) to overcome the elasticity of the corresponding belleville springs (6) to move downwards.

2. A multi-station jig according to claim 1, wherein the driving assembly comprises a horizontally arranged connecting plate (8) and a driving member (9) for driving the connecting plate (8) to move up and down, and the lower ends of all the rods (5b) are fixedly connected with the connecting plate (8).

3. A multi-station fixture as claimed in claim 2, wherein said driving member (9) is a cylinder or an oil cylinder, and a piston rod of the cylinder or the oil cylinder is fixedly connected to the connecting plate (8).

4. A multi-station clamp according to claim 1, wherein the inner wall of the support cylinder (4) is integrally formed with an annular shoulder (4a), the belleville spring (6) is located between the head (5a) and the annular shoulder (4a), and both ends of the belleville spring (6) are respectively pressed against the annular shoulder (4a) and the head (5 a).

5. A multi-station clamp according to claim 1, characterized in that the top wall of each positioning cylinder (2) is vertically fixed with at least two limiting columns (10), the limiting columns (10) are used for supporting the workpiece (7), and a plurality of limiting columns (10) on the same positioning cylinder (2) are circumferentially and uniformly distributed along the positioning cylinder (2).

6. A multi-station clamp as claimed in claim 5, wherein the top wall of the positioning cylinder (2) is provided with jacks arranged along the vertical direction, the jacks and the limiting columns (10) are the same in number and are in one-to-one correspondence in position, the lower ends of the limiting columns (10) are inserted into the corresponding jacks, and the limiting columns (10) and the positioning cylinder (2) are tightly matched and fixedly connected.