High-precision four-axis jig for part machining

Abstract

The utility model discloses a high-precision four-axis jig for part processing, which comprises a base plate, a three-axis moving device, a three-axis moving device and a positioning device, and is characterized in that the base plate is fixedly arranged on the three-axis moving device; one end of the jig seat is rotatably installed on the supporting seat, the other opposite end of the jig seat is connected with the output end of the driving device, the jig seat comprises a bottom plate, a first pressing air cylinder and a positioning pin, a side positioning block is arranged on the bottom plate, a part is placed on the bottom plate, and the first pressing air cylinder is fixedly installed on the back face of the bottom plate; a piston rod of the first pressing air cylinder penetrates through the bottom plate and then is connected with the first pressing block, and the positioning pin is fixedly installed on the bottom plate. Compared with the prior art, the positioning jig solves the problem that automobile parts to be machined on an existing positioning jig can only move in the X-axis direction, the Y-axis direction and the Z-axis direction through a three-axis moving device.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to a high-precision four-axis fixture for parts processing. Background Art

[0002] During the processing of automotive parts, in order to ensure the processing accuracy of the parts, it is necessary to use fixtures to fully lock the position of the parts to prevent positional deviation during the processing of the parts, which will affect the processing accuracy.

[0003] The existing positioning fixtures used for automobile parts processing have fixed positions of parts, and can only rely on the fixture to be fixed on the three-axis moving device to realize the movement of the parts on the X-axis, Y-axis, and Z-axis, which limits the flexibility of parts processing and cannot perform high-precision processing. Utility Model Content

[0004] The utility model aims to provide a high-precision four-axis fixture for parts processing, so as to solve the problem that the automobile parts to be processed on the existing positioning fixture can only be moved by the three-axis moving device in the X-axis, Y-axis and Z-axis.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solution: a high-precision four-axis fixture for parts processing, comprising:

[0006] A base plate, which is fixedly mounted on a three-axis moving device;

[0007] The jig seat has one end rotatably mounted on the support seat and the other end opposite thereto connected to the output end of the driving device. The jig seat comprises a base plate, a first clamping cylinder and a positioning pin. A side positioning block is arranged on the base plate. The parts are placed on the base plate. The first clamping cylinder is fixedly mounted on the back of the base plate. The piston rod of the first clamping cylinder passes through the base plate and is connected to the first clamping block. The positioning pin is fixedly mounted on the base plate.

[0008] As a further description of the above technical solution:

[0009] A first supporting column is also arranged on the bottom plate, and the first supporting column is arranged correspondingly below the first pressing block.

[0010] As a further description of the above technical solution:

[0011] A second pressing cylinder is also provided on the bottom plate, and the second pressing cylinder is fixedly mounted on the back of the bottom plate. The piston rod of the second pressing cylinder passes through the bottom plate and is connected to the second pressing block, and the second pressing block is in an "L" shape.

[0012] As a further description of the above technical solution:

[0013] A lifting cylinder is also arranged on the bottom plate. The lifting cylinder is fixedly mounted on the back of the bottom plate, and a piston rod of the lifting cylinder penetrates the bottom plate.

[0014] As a further description of the above technical solution:

[0015] A hemispherical top block is arranged at the end of the piston rod of the jacking cylinder.

[0016] As a further description of the above technical solution:

[0017] The surface of the hemispherical top block is provided with a rubber block.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the present invention, when processing parts, after the parts are placed on the base plate, the positioning pins are inserted into the through holes on the parts, and the side positioning blocks contact the side surfaces of the parts. The positioning pins and the side positioning blocks cooperate to complete the horizontal position locking of the parts on the base plate, and the first clamping cylinder drives the first clamping block downward to press the parts, completing the vertical position locking of the parts on the base plate. In this way, after the base plate is fixedly installed on the three-axis moving device, the three-axis moving device is used to drive the entire fixture to move along the X-axis, Y-axis, and Z-axis, and the driving device is combined to drive the rotation of the fixture seat to achieve high-precision four-axis processing during part processing.

[0020] 2. In the utility model, a lifting cylinder is also provided on the bottom plate, which is fixedly mounted on the back of the bottom plate, and a piston rod of the lifting cylinder is passed through the bottom plate. The lifting cylinder can lift the parts through the extension and contraction of the piston rod, so as to facilitate the smooth placement of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the positioning of parts in a high-precision four-axis fixture used for parts processing.

[0023] Figure 2 This is a structural schematic diagram of a high-precision four-axis fixture for parts processing.

[0024] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0025] Legend:

[0026] 1. Base plate; 2. Fixture seat; 21. Bottom plate; 211. Side positioning block; 212. First support column; 22. First clamping cylinder; 221. First pressure block; 23. Positioning pin; 24. Second clamping cylinder; 241. Second pressure block; 25. Lifting cylinder; 251. Hemispherical lifting block; 252. Rubber block; 3. Support seat; 4. Driving device; 9. Parts. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] See also Figure 1-3 The utility model provides a technical solution: a high-precision four-axis fixture for parts processing, comprising:

[0030] A substrate 1 is fixedly mounted on a three-axis moving device;

[0031] The fixture seat 2 has one end rotatably mounted on the support seat 3 and the other end connected to the output end of the driving device 4. The support seat 3 and the driving device 4 are fixedly mounted on the substrate 1. The fixture seat 2 includes a bottom plate 21, a first clamping cylinder 22 and a positioning pin 23. A side positioning block 211 is provided on the bottom plate 21. The part 9 is placed on the bottom plate 21. The first clamping cylinder 22 is fixedly mounted on the back of the bottom plate 21. The piston rod of the first clamping cylinder 22 passes through the bottom plate 21 and is connected to the first clamping block 221. The positioning pin 23 is fixedly mounted on the bottom plate 21. The driving device 4 can specifically adopt a rotary motor.

[0032] The bottom plate 21 is also provided with a first support column 212, which is correspondingly arranged below the first pressing block. When the first pressing block 221 presses the part 9, the first support column 212 supports the part 9 below to prevent the part 9 from being squeezed and deformed.

[0033] The bottom plate 21 is also provided with a second pressing cylinder 24, which is fixedly mounted on the back of the bottom plate 21. The piston rod of the second pressing cylinder 24 passes through the bottom plate 21 and is connected to a second pressing block 241. The second pressing block 241 is in an "L" shape. The second pressing block 241 is bent 90 degrees at the end, so that it can be hooked from the inside of the part 9 when pressed down, thereby further realizing the horizontal positioning of the part 9.

[0034] A lifting cylinder 25 is also provided on the bottom plate 21, and the lifting cylinder 25 is fixedly mounted on the back of the bottom plate 21, and the piston rod of the lifting cylinder 25 is penetrated through the bottom plate 21. The lifting cylinder 25 can lift the part 9 by the extension and contraction of the piston rod, so as to facilitate the stable placement of the part 9.

[0035] The piston rod end of the lifting cylinder 25 is provided with a hemispherical lifting block 251 to avoid surface damage of the part 9 when lifting the part 9.

[0036] A rubber block 252 is provided on the surface of the hemispherical top block 251 to further prevent the surface of the component 9 from being damaged.

[0037] Working principle: During part processing, after the part 9 is placed on the base plate 21, the positioning pin 23 is inserted into the through hole on the part 9, and the side positioning block 211 contacts the side surface of the part 9. The positioning pin 23 and the side positioning block 211 cooperate to complete the horizontal position locking of the part 9 on the base plate 21. The first clamping cylinder 22 drives the first pressing block 221 downward to press the part 9, completing the vertical position locking of the part 9 on the base plate 21. In this way, after the base plate 1 is fixedly installed on the three-axis moving device, the three-axis moving device is used to drive the entire fixture to move along the X-axis, Y-axis, and Z-axis, and combined with the driving device 4 to drive the rotation of the fixture seat 2, high-precision four-axis processing is achieved during part processing.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-precision four-axis fixture for parts processing, characterized in that: include: A base plate, which is fixedly mounted on a three-axis moving device; A fixture seat, one end of which is rotatably mounted on a support seat and the other end of which is connected to an output end of a driving device. The fixture seat comprises a base plate, a first clamping cylinder and a positioning pin. A side positioning block is provided on the base plate, and parts are placed on the base plate. The first clamping cylinder is fixedly mounted on the back of the base plate. The piston rod of the first clamping cylinder passes through the base plate and is connected to a first clamping block. The positioning pin is fixedly mounted on the base plate.

2. A high-precision four-axis fixture for parts processing according to claim 1, characterized in that: A first supporting column is also arranged on the bottom plate, and the first supporting column is arranged correspondingly below the first pressing block.

3. A high-precision four-axis fixture for parts processing according to claim 1, characterized in that: A second pressing cylinder is also provided on the bottom plate. The second pressing cylinder is fixedly mounted on the back of the bottom plate. The piston rod of the second pressing cylinder passes through the bottom plate and is connected to a second pressing block. The second pressing block is in an "L" shape.

4. A high-precision four-axis fixture for parts processing according to claim 1, characterized in that: The bottom plate is also provided with a lifting cylinder, which is fixedly mounted on the back of the bottom plate, and a piston rod of the lifting cylinder passes through the bottom plate.

5. A high-precision four-axis fixture for parts processing according to claim 4, characterized in that: A hemispherical jacking block is arranged at the end of the piston rod of the jacking cylinder.

6. A high-precision four-axis fixture for parts processing according to claim 5, characterized in that: A rubber block is arranged on the surface of the hemispherical top block.

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