CN207014061U - A high-precision tooling fixture for a copper base plate - Google Patents

Abstract

The utility model provides a high-precision tooling fixture for a copper bottom plate, comprising a lower template and an upper template, wherein guide pillars are arranged at four corner positions between the upper template and the lower template, a movable plate is sleeved on the guide pillar, a cylinder for driving the movable plate is arranged at the bottom of the movable plate, a fixed plate is arranged on the upper surface of the movable plate, and positioning pins for positioning a workpiece are arranged around the upper surface of the fixed plate, and a through hole is opened on the upper template directly above the fixed plate, through which a tool of a CNC machine tool can process the workpiece. The fixture can well position the processed copper bottom plate, and at the same time, its flatness is good, meeting the needs of processing accuracy.

Description

A high-precision tooling fixture for a copper base plate

technical field

The utility model relates to the technical field of metal processing fixtures, in particular to a high-precision tooling fixture for a copper bottom plate.

Background technique

With the development of numerical control technology, many parts of products are processed by numerical control machine tools. During CNC machining, it is generally necessary to install fixtures to clamp workpieces or guide tools. The chip obtains the correct position relative to the machine tool and tool, and the machined workpiece is clamped reliably. For heat sinks such as copper and aluminum, it is necessary to process the copper base plate. The positioning of the processing in the prior art is not accurate enough, and it is difficult to ensure the flatness of the thin sheet material during processing.

Contents of the invention

The utility model provides a high-precision tooling fixture for a copper bottom plate, which solves the problem of insufficient positioning accuracy in the prior art and difficulty in ensuring the flatness of the plate during processing.

In order to solve the problems of the technologies described above, the technical solution adopted by the utility model is:

A high-precision tooling fixture for a copper base plate, comprising a lower template and an upper template, guide pillars are arranged at four corners between the upper template and the lower template, and movable plates are set on the guide pillars. The bottom of the movable plate is provided with a cylinder for driving the movable plate, the upper surface of the movable plate is provided with a fixed plate, and the upper surface of the fixed plate is provided with positioning pins for positioning workpieces around the upper surface. A through hole is provided on the upper template, and the tool of the CNC machine tool can process the workpiece through the through hole.

Further, the positioning pin is chamfered towards the inner upper part, which can make it easier to pick and place the workpiece while reducing friction.

Further, a groove for taking out the workpiece is provided between the two positioning pins on the fixed plate, which is convenient for taking and placing the workpiece.

Further, the positioning pin includes two left positioning pins, each of the left positioning pins includes a positioning block and a pressing block, and a compression spring is arranged between the positioning block and the pressing block, which can further compress the workpiece .

Further, buffer springs are sheathed on the four guide posts between the movable plate and the upper template, which can well protect the cylinder and the workpiece.

Furthermore, positioning rings are provided on the four guide posts between the movable plate and the lower formwork to further protect the cylinder, and can ensure the level of the movable plate and prevent it from tilting.

The utility model provides a high-precision tooling fixture for a copper base plate, which includes a lower template and an upper template. Guide pillars are arranged at four corners between the upper template and the lower template, and the guide pillars are sleeved with movable plate, the bottom of the movable plate is provided with a cylinder for driving the movable plate, the upper surface of the movable plate is provided with a fixed plate, and the upper surface of the fixed plate is provided with positioning pins for positioning workpieces around, and the fixed plate A through hole is opened on the upper template directly above the CNC machine tool, and the tool of the CNC machine tool can process the workpiece through the through hole. The jig can well position the processed copper base plate, and at the same time, its flatness is good, which meets the requirement of processing precision.

Description of drawings

Fig. 1 is the structure schematic diagram of a kind of high-precision fixture of copper base plate of the present utility model;

Fig. 2 is a partial structural schematic diagram of a high-precision tooling fixture for a copper base plate of the present invention;

FIG. 3 is a schematic diagram of the structure at E in FIG. 2 .

detailed description

Below in conjunction with the accompanying drawings, specifically illustrate the implementation of the utility model, the accompanying drawings are for reference and description only, and do not constitute a limitation to the patent protection scope of the utility model.

As shown in Figures 1, 2 and 3, a high-precision tooling fixture for a copper base plate includes a lower template 1 and an upper template 2, and guide posts are arranged at four corners between the upper template 2 and the lower template 1 4. The guide column 4 is covered with a movable plate 3, the bottom of the movable plate 3 is provided with a cylinder 5 for driving the movable plate 3, the upper surface of the movable plate 3 is provided with a fixed plate 6, and the fixed plate 3 is provided with a fixed plate 6. The upper surface of the plate 6 is provided with locating pins 7 for positioning workpieces, specifically, two locating pins are arranged on the front, rear, left, and right sides of the fixed plate; the upper template 2 directly above the fixed plate 6 is provided with through holes 8. The tool of the CNC machine tool can process the workpiece through the through hole. The positioning pin 7 is provided with a chamfer 701 towards the inner upper part.

A groove 61 is provided on the fixing plate 6 between the two positioning pins 7 to facilitate taking out the workpiece.

In this embodiment, the positioning pin 7 includes two left positioning pins, and each left positioning pin includes a positioning block 71 and a pressing block 72 , and a compression spring 73 is arranged between the positioning block 71 and the pressing block 72 .

Buffer springs 10 are sheathed on the four guide posts 4 between the movable plate 3 and the upper template 2 .

Positioning rings 9 are arranged on the four guide pillars 4 between the movable plate 3 and the lower template 1 .

When processing, place the copper bottom plate in the positioning pin of the fixed plate, and the cylinder drives the movable plate to move upward until it touches the upper template, and the tool of the CNC machine tool passes through the through hole to process it. Move down to the initial position to complete the processing.

The above disclosures are only preferred embodiments of the present utility model, and cannot be used to limit the protection scope of the present utility model. Therefore, the equivalent changes made according to the patent scope of the utility model still belong to the scope covered by the utility model. .

Claims (6)

1. A high-precision tooling fixture for a copper base plate, characterized in that: it comprises a lower formwork and an upper formwork, four corner positions between the upper formwork and the lower formwork are provided with guide pillars, and the guide pillars are sleeved There is a movable plate, the bottom of the movable plate is provided with a cylinder for driving the movable plate, the upper surface of the movable plate is provided with a fixed plate, and the upper surface of the fixed plate is provided with positioning pins for positioning workpieces around the upper surface. A through hole is provided on the upper template directly above the fixed plate, through which the tool of the CNC machine tool can process the workpiece. 2. A high-precision tooling fixture for a copper base plate according to claim 1, wherein the positioning pin is chamfered towards the inner upper part. 3. A high-precision tooling fixture for a copper base plate according to claim 1, characterized in that: on the fixed plate, a groove is provided between the two positioning pins to facilitate the removal of the workpiece. 4. A high-precision tooling fixture for a copper base plate according to claim 1, wherein the locating pins include two left locating pins, each of the left locating pins includes a locating block and a pressure block, and the locating pins A compression spring is arranged between the block and the pressing block. 5. A high-precision tooling fixture for a copper base plate according to claim 1, wherein buffer springs are sheathed on the four guide posts between the movable plate and the upper template. 6 . The high-precision tooling fixture for a copper base plate according to claim 1 , wherein positioning rings are arranged on the four guide posts between the movable plate and the lower formwork. 7 .