Auxiliary positioning device for turn-over machining

Abstract

The utility model belongs to the technical field of technological equipment manufacturing, and relates to an auxiliary positioning device for turn-over machining, which is used for positioning a workpiece, a standardized detection platform is arranged on the workpiece, a standardized detection hole is arranged on the standardized detection platform, the auxiliary positioning device for turn-over machining further comprises a positioning block, and the positioning block is arranged on the standardized detection platform. A positioning hole is formed in the positioning block, the shape of the positioning block is matched with that of the standardized detection platform, the positioning hole and the standardized detection hole are the same in shape and correspond in position, and the positioning block is assembled on a workpiece through a positioning pin; according to the utility model, the improved standardized detection hole and the standardized detection platform are utilized to position three planes which are perpendicular to each other so as to align coordinates. The structure is simple, the operation is convenient, and the practical value is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of process equipment manufacturing and relates to an auxiliary positioning device for flipping processing. Background Art

[0002] With the development of technology, the proportion of digital models in the manufacturing basis of workpiece manufacturing is increasing, which puts forward certain requirements for the rational use of CNC equipment. Among the existing processing equipment, three-axis CNC milling machines are the most numerous.

[0003] During the processing of three-axis machining equipment, there are situations where flipping is required due to the technical requirements and appearance characteristics of the workpiece. In order to ensure the machining accuracy, the same position will be selected as the reference point for multiple flipping processes. However, due to the shape characteristics of the workpiece, there may be no reference point after flipping or the same reference point is difficult to find. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary positioning device for flipping processing, which is used to solve the problem in the prior art that there is no reference point after flipping or the same reference point is difficult to find.

[0005] Technical Solution

[0006] A flip processing auxiliary positioning device is used for positioning a workpiece. The workpiece is provided with a standardized detection platform, and the standardized detection platform is provided with standardized detection holes. The device also includes a positioning block, and the positioning block is provided with positioning holes. The shape of the positioning block matches the standardized detection platform, and the positioning hole and the standardized detection hole have the same shape and corresponding position. The positioning block is assembled to the workpiece by a positioning pin.

[0007] Preferably, the positioning hole provided on the positioning block is an 8-shaped positioning hole.

[0008] Preferably, the standardized detection hole and the positioning hole have the same shape.

[0009] Preferably, the positioning pin is an 8-shaped positioning pin, which is compatible with the shape of the standardized detection hole and the positioning hole.

[0010] Preferably, the surface of the positioning block is subjected to rust-proof treatment.

[0011] Preferably, the positioning hole on the positioning block and the positioning pin are interference fit; the positioning pin and the standardized detection hole are clearance fit.

[0012] Beneficial effects:

[0013] The utility model provides an auxiliary positioning device for flipping processing in the process of numerical control processing, which uses the improved standardized detection hole and the standardized detection platform to locate three mutually perpendicular planes for coordinate alignment. The structure is simple, the operation is convenient, and the practical value is large. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the locating pin;

[0015] Figure 2 is a side view of the dowel pin;

[0016] Figure 3 It is a three-dimensional diagram of the positioning pin;

[0017] Figure 4 It is the front view of the positioning block;

[0018] Figure 5 is a side view of the positioning block;

[0019] Figure 6 It is a three-dimensional diagram of the positioning block;

[0020] Figure 7 This is a schematic diagram of the positioning block and the positioning pin after assembly;

[0021] Figure 8 It is a schematic diagram of a standardized testing platform and standardized testing holes;

[0022] Fig. 9 It is a schematic diagram of the standardized testing platform and the positioning block after assembly;

[0023] Among them, 1. workpiece, 2. standardized detection platform, 3. standardized detection hole, 4. positioning block, 5. positioning hole, 6. positioning pin. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0025] The utility model proposes an auxiliary positioning device for flipping processing, which is used for positioning a workpiece 1. The workpiece 1 is provided with a standardized detection platform 2, and the standardized detection platform 2 is provided with a standardized detection hole 3. It also includes a positioning block 4, and the positioning block 4 is provided with a positioning hole 5. The shape of the positioning block 4 matches the standardized detection platform 2, and the positioning hole 5 has the same shape and corresponding position as the standardized detection hole 3. The positioning block 4 is assembled to the workpiece 1 through a positioning pin 6.

[0026] In the utility model, the positioning hole 5 arranged on the positioning block 4 is an 8-shaped positioning hole 5, which is composed of two circular holes with different apertures, and can ensure that the positioning pin 6 assembled on the positioning block 4 will not be assembled incorrectly, which will cause the positioning reference to change after turning over; the standardized detection hole 3 has the same shape as the positioning hole 5, and is also an 8-shaped positioning hole 5, which is composed of two circular holes with different apertures, and can ensure that the positioning pin 6 assembled on the standardized detection platform 2 will not be assembled incorrectly, which will cause the positioning reference to change after turning over; the positioning pin 6 is an 8-shaped positioning pin, which is compatible with the shapes of the standardized detection hole 3 and the positioning hole 5.

[0027] In the present invention, the positioning block 4 is a rectangular positioning block, and the surface of the positioning block 4 is treated with rust prevention to ensure that the verticality of the surface meets the requirements.

[0028] In the utility model, the positioning hole 5 on the positioning block 4 and the positioning pin 6 have an interference fit, which can ensure that the positioning pin 6 will not fall out of the positioning hole 5 of the positioning block 4; the positioning pin 6 and the standardized detection hole 3 have a clearance fit, so the positioning pin can be smoothly removed from the standardized detection hole 3.

[0029] The working principle of the utility model is to use the shape characteristics of the positioning block 4 and the positioning pin 6 to artificially create a reference point on the workpiece 1, and assist the compiler of the CNC machining program and the operator of the CNC milling machine to complete the confirmation of the reference point.

[0030] According to the digital model processing workpiece profile is a curved surface, a standardized detection platform 2 is specially set up to detect measurement and confirm the reference points of secondary processing during rework. If the profile has a part of a plane, there will be no dedicated detection platform, and this part of the plane will be selected as the detection platform. Based on the above two types of workpieces 1 distinguished by whether there is a detection platform, the utility model provides a standardized 8-shaped positioning pin 6 and a positioning block 4 dual positioning mechanism. When there is a detection platform, the 8-shaped positioning pin 6 and the positioning block 4 are used for joint positioning, and when there is no detection platform, the 8-shaped positioning pin 6 is used for single positioning.

[0031] The specific positioning operation is as follows: when compiling the NC program, assemble the digital model of the utility model into the standardized detection hole 3 and the detection platform 2 of the workpiece 1, and set the coordinates as follows: Fig. 9 At point A, since the positioning block 4 has a vertical parallelism requirement, point A can still be selected as the reference point during the flipping process. When the operator of the three-axis processing equipment is checking the reference point, the positioning block 4 of the utility model is installed into the standardized detection hole and the detection platform to complete the confirmation of the reference point of the complex surface flipping process.

Claims

1. A flip processing auxiliary positioning device for positioning a workpiece, characterized in that: A standardized detection platform is provided on the workpiece, and a standardized detection hole is provided on the standardized detection platform. The flip processing auxiliary positioning device also includes a positioning block, and a positioning hole is provided on the positioning block. The shape of the positioning block matches the standardized detection platform. The positioning hole and the standardized detection hole have the same shape and corresponding position, and the positioning block is assembled to the workpiece through a positioning pin.

2. The auxiliary positioning device for flipping processing according to claim 1, characterized in that: The positioning hole arranged on the positioning block is an 8-shaped positioning hole.

3. The auxiliary positioning device for flipping processing according to claim 2, characterized in that: The standardized detection hole and the positioning hole have the same shape.

4. The auxiliary positioning device for flipping processing according to claim 3, characterized in that: The positioning pin is an 8-shaped positioning pin, which is compatible with the shapes of the standardized detection hole and the positioning hole.

5. The auxiliary positioning device for flipping processing according to claim 1, characterized in that: The surface of the positioning block is treated with rust prevention.

6. The auxiliary positioning device for flipping processing according to claim 4, characterized in that: The positioning hole on the positioning block is interference-fitted with the positioning pin; and the positioning pin is clearance-fitted with the standardized detection hole.

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