CN214922415U - Cylinder body sphere adds clamping apparatus - Google Patents
Cylinder body sphere adds clamping apparatus Download PDFInfo
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- CN214922415U CN214922415U CN202120596299.7U CN202120596299U CN214922415U CN 214922415 U CN214922415 U CN 214922415U CN 202120596299 U CN202120596299 U CN 202120596299U CN 214922415 U CN214922415 U CN 214922415U
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- Prior art keywords
- pull rod
- cylinder body
- flange
- expansion
- spherical surface
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- 230000006835 compression Effects 0.000 claims abstract description 15
- 238000007906 compression Methods 0.000 claims abstract description 15
- 238000003754 machining Methods 0.000 claims abstract description 15
- 238000003825 pressing Methods 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 230000009191 jumping Effects 0.000 description 3
- 230000002579 anti-swelling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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Abstract
The utility model discloses a cylinder body sphere adds clamping apparatus, including flange (1) that is used for being connected with the main shaft of numerical control lathe, one side of flange (1) is equipped with blind hole (10), is equipped with locating piece (2) in blind hole (10), and the opposite side of flange (1) is equipped with anti-expanding dabber (3), is equipped with in the anti-expanding dabber (3) and compresses tightly pull rod (4), compresses tightly pull rod (4) and connects locating piece (2) after passing flange (1); the pressing pull rod (4) is provided with a pressing part (1): 1000 a tapered surface (41); a plurality of anti-expansion sheets (30) distributed around the circumferential direction of the compression pull rod (4) are arranged on the anti-expansion mandrel (3); the material of the anti-expansion mandrel (3) is 65Mn, and the anti-expansion mandrel is subjected to heat treatment until the hardness is HRC 40-45; and a counter bore (40) is arranged on the end face of the compression pull rod (4). The utility model has the advantages of can improve cylinder body sphere machining precision, make efficient and the long service life of plunger pump.
Description
Technical Field
The utility model belongs to plunger pump cylinder body processing field especially relates to a cylinder body sphere adds clamping apparatus of plunger pump.
Background
The cylinder body spherical surface of the existing plunger pump (such as R824-0000 type) is formed by processing by a numerical control lathe, and the cylinder body is clamped by adopting a universal hydraulic three-jaw at first, the outer peripheral surface is finely turned to obtain a D1 outer circle, then the universal hydraulic three-jaw is used for clamping a D1 outer circle, and the cylinder body spherical surface is finely turned; then carrying out heat treatment; then the universal hydraulic three-jaw is adopted to clamp the D1 excircle of the cylinder body, and the cylinder body spherical surface is finish-turned again. Because the center hole of the cylinder body is not used for positioning during the first fine turning, the larger out-of-tolerance of the coaxiality of the excircle of D1 obtained by the first fine turning and the center hole of the cylinder body exists, the deformation of the excircle of the cylinder body after heat treatment can reach 0.04mm, and the out-of-tolerance of the coaxiality of the excircle of D1 and the center hole after heat treatment can reach 0.05 mm. As the hydraulic three-jaw jumping can reach 0.02mm, and the coaxial out-of-tolerance of the excircle and the middle hole of the D1 subjected to heat treatment can reach 0.05mm, the obtained spherical surface is difficult to ensure within 0.03mm relative to the middle hole jumping during the second time of fine turning, so that the precision of the cylinder body is poor, the efficiency of the plunger pump can be reduced, and the service life of the plunger pump can be prolonged. Therefore, a fixture is needed to improve the machining precision of the cylinder spherical surface, so as to improve the efficiency and the service life of the plunger pump.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cylinder body sphere adds clamping apparatus. The utility model has the advantages of can improve cylinder body sphere machining precision, make efficient and the long service life of plunger pump.
The technical scheme of the utility model: the utility model provides a cylinder body sphere adds clamping apparatus, is including being used for the flange of being connected with numerical control lathe's main shaft, and one side of flange is equipped with the blind hole, is equipped with the locating piece in the blind hole, and the opposite side of flange is equipped with the anti-dabber that rises, is equipped with in the anti-dabber that rises, compresses tightly the pull rod and passes the flange back and connect the locating piece.
In the cylinder body spherical surface machining clamp, the pressing pull rod is provided with a pressing part 1: 1000 conical surface.
In the cylinder body spherical surface machining clamp, a plurality of anti-expansion sheets distributed around the circumferential direction of the compression pull rod are arranged on the anti-expansion core shaft.
In the cylinder body spherical surface machining fixture, the anti-expansion mandrel is made of 65 Mn.
In the cylinder body spherical surface machining clamp, a counter bore is formed in the end face of the compression pull rod.
Compared with the prior art, the utility model discloses with the anti-mesopore location of dabber to the cylinder body that rises, do not use hydraulic pressure three-jaw locking and D1 excircle location, reduce the conversion of technology benchmark for the sphere that forms during the first finish turning is high with mesoporous axiality, makes cylinder body sphere after the thermal treatment be less than 0.05mm with the coaxial out-of-tolerance of mesopore. The utility model discloses a flange can be directly fixed with numerical control lathe's main shaft for the beating of cylinder body is less, and the cylinder body sphere after the heat treatment is little with the coaxial overproof of mesopore in addition, makes during the second time is smart, and the sphere that obtains is for mesopore jumping degree little, ensures in 0.03mm, makes the cylinder body precision good, can improve the efficiency and the life of plunger pump. Therefore, the utility model has the advantages of can improve cylinder body sphere machining precision, make efficient and the long service life of plunger pump.
Drawings
Fig. 1 is a schematic view of a clamp structure.
Fig. 2 is a schematic structural view of the cylinder body.
Fig. 3 is a schematic structural view of the expanding mandrel.
The labels in the figures are: 1-flange, 2-locating block, 3-counter expansion mandrel, 4-pressing pull rod, 10-blind hole, 30-counter expansion sheet, 40-counter bore, 41-conical surface, 100-middle hole, 101-spherical surface.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given. A cylinder body spherical surface processing technology, which comprises the following steps,
a. fixing the cylinder body on a main shaft of a numerical control lathe, finely turning a spherical surface 101 of the cylinder body by taking a middle hole 100 of the cylinder body as a positioning reference to obtain a product A,
b. heat-treating the product A to obtain product B,
c. and fixing the B product on a main shaft of a numerical control lathe, and finely turning the spherical surface 101 of the B product by taking the middle hole 100 of the B product as a positioning reference to obtain a finished product.
The cylinder body spherical surface machining clamp used in the machining process comprises a flange 1 used for being connected with a main shaft of a numerical control lathe, a plurality of mounting holes (not shown in the drawing) used for being connected with the main shaft are formed in the flange 1, a blind hole 10 is formed in one side of the flange 1, a positioning block 2 is arranged in the blind hole 10, an anti-expansion mandrel 3 is arranged on the other side of the flange 1, one end of the anti-expansion mandrel 3 is embedded into the flange 1, a compression pull rod 4 is arranged in the anti-expansion mandrel 3, the compression pull rod 4 penetrates through the flange 1 and then is connected with the positioning block 2, and the compression pull rod 4 is in threaded connection with the positioning block 2.
The compressing pull rod 4 is provided with a pressing part 1: 1000 tapered surface 41.
The anti-expansion core shaft 3 is provided with a plurality of anti-expansion sheets 30 which are distributed around the circumferential direction of the compression pull rod 4, the outer side walls of the anti-expansion sheets 30 are matched with the middle hole of the cylinder body, and the inner side walls of the anti-expansion sheets 30 are matched with the conical surface 41.
The material of the anti-swelling core shaft 3 is 65Mn, and the anti-swelling core shaft is subjected to heat treatment until the hardness is HRC 40-45.
The end face of the compression pull rod 4 is provided with a counter bore 40, the counter bore 40 can not be a round hole and can be a square hole or a hexagonal hole, and when a corresponding wrench is inserted into the counter bore 40, the wrench rotates to drive the compression pull rod 4 to rotate.
Assembling and disassembling the cylinder body on the clamp: the flange 1 is fixed on the end face of a main shaft of the numerical control lathe, and the main shaft is coaxial with the anti-expansion core shaft 3. The middle hole 100 of the cylinder body is inserted into the anti-expansion mandrel 3, the pressing pull rod 4 is rotated by a wrench, the pressing pull rod 4 causes the anti-expansion sheet 30 on the anti-expansion mandrel 3 to be opened outwards, and the cylinder body is fixed on the anti-expansion mandrel 3. When the cylinder body is disassembled from the clamp, only the compression pull rod 4 is unscrewed through a wrench, and the disassembly and the assembly are convenient.
The utility model has the advantages of can improve cylinder body sphere machining precision, make efficient and the long service life of plunger pump.
Claims (5)
1. The utility model provides a cylinder body sphere adds clamping apparatus which characterized in that: the numerical control lathe comprises a flange (1) connected with a main shaft of a numerical control lathe, wherein a blind hole (10) is formed in one side of the flange (1), a positioning block (2) is arranged in the blind hole (10), an anti-expansion core shaft (3) is arranged on the other side of the flange (1), a compression pull rod (4) is arranged in the anti-expansion core shaft (3), and the compression pull rod (4) penetrates through the flange (1) and then is connected with the positioning block (2).
2. The cylinder block spherical surface machining jig according to claim 1, characterized in that: the pressing pull rod (4) is provided with a pressing part (1): 1000 (41) in the plane of the cone.
3. The cylinder block spherical surface machining jig according to claim 2, characterized in that: the anti-expansion core shaft (3) is provided with a plurality of anti-expansion sheets (30) which are distributed around the circumferential direction of the compression pull rod (4).
4. The cylinder block spherical surface machining jig according to claim 1, characterized in that: the material of the anti-expansion mandrel (3) is 65 Mn.
5. The cylinder block spherical surface machining jig according to claim 1, characterized in that: and a counter bore (40) is arranged on the end face of the compression pull rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120596299.7U CN214922415U (en) | 2021-03-24 | 2021-03-24 | Cylinder body sphere adds clamping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120596299.7U CN214922415U (en) | 2021-03-24 | 2021-03-24 | Cylinder body sphere adds clamping apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214922415U true CN214922415U (en) | 2021-11-30 |
Family
ID=79038462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120596299.7U Active CN214922415U (en) | 2021-03-24 | 2021-03-24 | Cylinder body sphere adds clamping apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214922415U (en) |
-
2021
- 2021-03-24 CN CN202120596299.7U patent/CN214922415U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 29 Caohu Avenue, Xiangcheng District, Suzhou, Jiangsu Province Patentee after: Suzhou Liyuan Hydraulic Co.,Ltd. Address before: 29 Caohu Avenue, Xiangcheng District, Suzhou, Jiangsu Province Patentee before: LIYUAN HYDRAULIC (SUZHOU) Co.,Ltd. |