CN214923426U - Cam tool for grinding cam shaft - Google Patents
Cam tool for grinding cam shaft Download PDFInfo
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- CN214923426U CN214923426U CN202023181107.0U CN202023181107U CN214923426U CN 214923426 U CN214923426 U CN 214923426U CN 202023181107 U CN202023181107 U CN 202023181107U CN 214923426 U CN214923426 U CN 214923426U
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- guide pillar
- camshaft
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Abstract
The utility model belongs to the technical field of anchor clamps and frock, especially camshaft anchor clamps design and accurate clamping device, cam frock is used in concretely relates to camshaft grinding. The fixture assembly comprises a camshaft to be fixed and a fixture assembly, wherein the fixture assembly comprises a fixing block, a through hole is formed in one end of the fixing block, a longitudinal through groove is integrally formed by outwards extending the inner wall of the through hole in the radial direction of the through hole, a fixture block is embedded in the longitudinal through groove, the end part of the fixture block is protruded from the inner wall of the through hole in the lower state, an embedding groove matched with the protruding part of the fixture block is formed in the outer wall of the end part of the camshaft, a transverse through groove is formed in the end part of the fixing block, the through hole is not formed in the end part of the fixing block, the transverse through groove is parallel to the axial direction of the through hole, a guide pillar is arranged in the transverse through groove in a penetrating manner, a fine adjustment assembly is installed on the outer side of the guide pillar, and the end part of the other side of the guide pillar is used for being movably installed with a cam mill driving device.
Description
Technical Field
The utility model belongs to the technical field of anchor clamps and frock, especially camshaft anchor clamps design and accurate clamping device, cam frock is used in concretely relates to camshaft grinding.
Background
The camshaft is an important component in piston engines to control the opening and closing of engine valves. The cam shaft has the characteristics of complex structure, high machining precision, low rigidity and the like, and is always a difficulty in manufacturing internal combustion engine parts. The machining process for the camshaft generally includes forging a blank, and then turning and finishing the blank. In the finish machining process, the workpiece is necessarily fixed by matching with a corresponding fixture or tool.
At present, the used fixture is generally called camshaft grinding chuck, and the structure used by each manufacturer is similar in general principle although the structure is different. The cam grinding device comprises a fixing block, wherein a through hole is formed in one end of the fixing block, and the other end of the fixing block is assembled through a connecting assembly and a cam grinding driving device. The fixed of camshaft generally designs the through-hole in current design, and what be used commonly includes that a flexible breach of integrative system is made between through-hole lower extreme to fixed block bottom surface, wears to be equipped with a locking bolt between the fixed block of this flexible breach both sides, later adjusts the slight deformation of through-hole through locking bolt's position and carries out the centre gripping. And the other method is that a multi-petal clamp is arranged in the through hole, and then the multi-petal clamp is matched with a corresponding assembly to realize loose fit.
As mentioned above, the clamping devices used at present are basically used for clamping and fixing the end of the camshaft in the radial direction by means of an externally applied clamping force, but there is generally no restriction in the axial and circumferential directions. In addition, the fine adjustment mechanism is not provided, and once the camshaft and the tool are fixed, the relative position of the camshaft and the tool relative to the finish machining tool cannot be adjusted.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide one kind can be in the axial, radially all restrict the camshaft with circumference to can carry out the cam frock for the camshaft grinding of fine setting to the camshaft position.
The utility model adopts the technical proposal that:
cam frock is used in camshaft grinding, including treating fixed camshaft and frock subassembly, the frock subassembly includes a fixed block, and the one end system of this fixed block has a through-hole, an organic whole system goes out flexible breach between through-hole lower extreme to the fixed block bottom surface, wears to be equipped with a locking bolt, its characterized in that between the fixed block of this flexible breach both sides: the inner wall of the through hole extends outwards along the radial direction of the through hole to form a longitudinal through groove, a fixture block is embedded in the longitudinal through groove, the end part of the fixture block protrudes from the inner wall of the through hole in the lower state, an embedding groove matched with the protruding part of the fixture block is formed in the outer wall of the end part of the camshaft, a transverse through groove is formed in the end part of the fixing block, which is not provided with the through hole, the transverse through groove is parallel to the axial direction of the through hole, a guide pillar penetrates through the transverse through groove, a fine adjustment assembly is installed on the outer side of the guide pillar, and the end part of the other side of the guide pillar is movably installed with the cam mill driving device.
Furthermore, a strip-shaped hole is formed in the fixture block, a limiting pin is fixedly mounted in the middle of the strip-shaped hole, a pressure spring is mounted between the limiting pin and the lower end of the strip-shaped hole, and the pressure spring pushes out the lower end of the fixture block in a non-elastic state.
Furthermore, the transverse through groove is a rectangular groove, the guide pillar is a rectangular hard block, the thickness of the rectangular hard block is matched with the height of the through groove, the width of the rectangular hard block is smaller than that of the through groove, and gaps exist between the left side wall and the right side wall of the guide pillar and between the left side wall and the right side wall of the transverse through groove when the guide pillar penetrates into the transverse through groove.
Furthermore, the fine tuning assembly comprises a longitudinal screw and two lateral screws, the lower end part of the longitudinal screw penetrates through the transverse through groove through the guide pillar, and the end parts of the two lateral screws on the same side penetrate into the transverse through groove along the direction perpendicular to the longitudinal screw and are pressed on the outer walls of the two sides of the guide pillar, which are opposite to each other.
Furthermore, a rectangular hole is formed in the middle of the guide pillar, the rectangular hole is vertically communicated, the longitudinal bolt penetrates through the rectangular hole from the upper side to the inner wall of the transverse through groove on the other side, the width of the rectangular hole is matched with the outer diameter of the longitudinal bolt, and the length of the rectangular hole is larger than the outer diameter of the longitudinal bolt.
The utility model has the advantages that:
the utility model discloses in, still adopt original frock structure in the centre gripping of radial direction is fixed, the fixture block inlays the dress and is leading to the inslot at vertical logical inslot, imbeds the caulking groove under the bulge state in, and then limits the axial position of camshaft, meanwhile, the circumferential direction of camshaft also receives the restriction. Compare in current fixture, this frock is spacing by three direction, and positioning effect is better.
The utility model discloses in, adopt horizontal logical groove, guide pillar, vertical screw and two side direction screws to fix the fixed block in the direction of large size, then can carry out orderly fine setting in the minizone. The transverse through groove adopts a rectangular structure with a rectangular groove matched with the guide pillar to limit the fixed block to rotate circumferentially relative to the guide pillar, and the thickness of the rectangular hard block is matched with the height of the through groove, so that the movement of the guide pillar in the vertical direction is effectively limited, and the position can be adjusted in the left and right directions. The longitudinal screw is matched with the rectangular hole made by the guide pillar and used for adjusting the front and back positions of the fixing block, and after the front and back positions and the left and right positions of the fixing block are adjusted, the fixing block is fixed by tightly pressing the lateral screws on the two sides. After the camshaft to be processed is clamped, the corresponding feed and processing positions can be adjusted through fine adjustment of the positions of the fixing block and the guide pillar.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a perspective view of the present invention in use.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The cam tooling for grinding the cam shaft comprises a cam shaft 16 to be fixed and a tooling assembly, wherein the tooling assembly comprises a fixed block 4, one end of the fixed block is provided with a through hole 5, a telescopic gap 7 is integrally formed between the lower end of the through hole and the bottom surface of the fixed block, and a locking bolt 6 is arranged between the fixed blocks at the two sides of the telescopic gap in a penetrating way, the innovation of the utility model is that the inner wall of the through hole extends outwards along the radial direction of the through hole to form a longitudinal through groove, a clamping block 1 is embedded in the longitudinal through groove, the lower end part 12 of the clamping block is protruded from the inner wall of the through hole in the lower state, the outer wall of the end part of the cam shaft is provided with an embedding groove 14 matched with the protruding part of the clamping block, the end part of the fixed block, which is not provided with a transverse through groove, the transverse through groove is parallel to the axial direction of the through hole, and a guide pillar 10 is arranged in the transverse through groove, the fine adjustment assembly is installed on the outer side of the guide pillar, and the end part of the other side of the guide pillar is movably installed with the cam mill driving device.
In this embodiment, a strip-shaped hole 15 is formed in the fixture block, a limiting pin 14 is fixedly installed in the middle of the strip-shaped hole, a pressure spring 13 is installed between the limiting pin and the lower end of the strip-shaped hole, and the pressure spring pushes out the lower end of the fixture block in a non-elastic state.
In this embodiment, the transverse through groove is a rectangular groove 2, the guide pillar is a rectangular hard block, the thickness of the rectangular hard block is adapted to the height of the through groove, the width of the rectangular hard block is smaller than that of the through groove, and when the guide pillar penetrates into the transverse through groove, gaps exist between the left side and the right side of the guide pillar and between the left side wall and the right side wall of the transverse through groove.
In this embodiment, the fine adjustment assembly includes a longitudinal screw 8 and two lateral screws 3, the lower end of the longitudinal screw penetrates through the transverse through groove via the guide pillar, and the ends of the two lateral screws on the same side penetrate into the transverse through groove along the direction perpendicular to the longitudinal screw and are crimped on the outer walls on the two sides of the guide pillar, which are opposite to each other.
In the embodiment, the middle part of the guide post is provided with a rectangular hole 9 which is vertically communicated, the longitudinal screw penetrates through the rectangular hole from the upper part to the inner wall of the transverse through groove at the other side, the width of the rectangular hole is matched with the outer diameter of the longitudinal screw, and the length of the rectangular hole is larger than the outer diameter of the longitudinal bolt.
The utility model discloses a use is:
the utility model discloses during the use, as shown in fig. 3, in the camshaft tip that operating personnel will treat the centre gripping stretched into the through-hole, treat behind the caulking groove that fixture block tip embedding camshaft made, can adopt locking bolt to tighten up flexible breach. And then the fixed block fixed with the camshaft can be integrally moved to a fixed position of a finishing device for assembly. After the assembly is completed, an operator can finely adjust the position of the fixed block by adopting the longitudinal screw and the transverse screw for the cutter position and the trial machining structure of the finish machining equipment until the position reaches a proper state, and then the actual machining process can be carried out.
The utility model discloses in, still adopt original frock structure in the centre gripping of radial direction is fixed, the fixture block inlays the dress and is leading to the inslot at vertical logical inslot, imbeds the caulking groove under the bulge state in, and then limits the axial position of camshaft, meanwhile, the circumferential direction of camshaft also receives the restriction. Compare in current fixture, this frock is spacing by three direction, and positioning effect is better.
The utility model discloses in, adopt horizontal logical groove, guide pillar, vertical screw and two side direction screws to fix the fixed block in the direction of large size, then can carry out orderly fine setting in the minizone. The transverse through groove adopts a rectangular structure with a rectangular groove matched with the guide pillar to limit the fixed block to rotate circumferentially relative to the guide pillar, and the thickness of the rectangular hard block is matched with the height of the through groove, so that the movement of the guide pillar in the vertical direction is effectively limited, and the position can be adjusted in the left and right directions. The longitudinal screw is matched with the rectangular hole made by the guide pillar and used for adjusting the front and back positions of the fixing block, and after the front and back positions and the left and right positions of the fixing block are adjusted, the fixing block is fixed by tightly pressing the lateral screws on the two sides. After the camshaft to be processed is clamped, the corresponding feed and processing positions can be adjusted through fine adjustment of the positions of the fixing block and the guide pillar.
Claims (5)
1. Cam frock is used in camshaft grinding, including treating fixed camshaft and frock subassembly, the frock subassembly includes a fixed block, and the one end system of this fixed block has a through-hole, an organic whole system goes out flexible breach between through-hole lower extreme to the fixed block bottom surface, wears to be equipped with a locking bolt, its characterized in that between the fixed block of this flexible breach both sides: the inner wall of the through hole extends outwards along the radial direction of the through hole to form a longitudinal through groove, a fixture block is embedded in the longitudinal through groove, the end part of the fixture block protrudes from the inner wall of the through hole in the lower state, an embedding groove matched with the protruding part of the fixture block is formed in the outer wall of the end part of the camshaft, a transverse through groove is formed in the end part of the fixing block, which is not provided with the through hole, the transverse through groove is parallel to the axial direction of the through hole, a guide pillar penetrates through the transverse through groove, a fine adjustment assembly is installed on the outer side of the guide pillar, and the end part of the other side of the guide pillar is movably installed with the cam mill driving device.
2. The cam tool for grinding the camshaft according to claim 1, wherein: a strip-shaped hole is formed in the fixture block, a limiting pin is fixedly mounted in the middle of the strip-shaped hole, a pressure spring is mounted between the limiting pin and the lower end of the strip-shaped hole, and the pressure spring pushes the lower end of the fixture block out in a non-elastic state.
3. The cam tool for grinding the camshaft according to claim 1, wherein: the horizontal through groove is a rectangular groove, the guide pillar is a rectangular hard block, the thickness of the rectangular hard block is matched with the height of the through groove, the width of the rectangular hard block is smaller than that of the through groove, and gaps exist between the left side and the right side of the guide pillar and between the left side wall and the right side wall of the horizontal through groove when the guide pillar penetrates into the horizontal through groove.
4. The cam tool for grinding the camshaft according to claim 3, wherein: the fine adjustment assembly comprises a longitudinal screw and two lateral screws, the lower end part of the longitudinal screw penetrates through the transverse through groove through the guide pillar, and the end parts of the two lateral screws on the same side penetrate into the transverse through groove along the direction perpendicular to the longitudinal screw and are pressed on the outer walls of the two sides of the guide pillar, which are opposite to each other.
5. The cam tool for grinding the camshaft according to claim 4, wherein: the middle part of the guide post is provided with a rectangular hole which is vertically communicated, the longitudinal screw penetrates through the rectangular hole from the upper part to the inner wall of the transverse through groove at the other side, the width of the rectangular hole is matched with the outer diameter of the longitudinal screw, and the length of the rectangular hole is larger than the outer diameter of the longitudinal bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023181107.0U CN214923426U (en) | 2020-12-25 | 2020-12-25 | Cam tool for grinding cam shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023181107.0U CN214923426U (en) | 2020-12-25 | 2020-12-25 | Cam tool for grinding cam shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214923426U true CN214923426U (en) | 2021-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023181107.0U Active CN214923426U (en) | 2020-12-25 | 2020-12-25 | Cam tool for grinding cam shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214923426U (en) |
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2020
- 2020-12-25 CN CN202023181107.0U patent/CN214923426U/en active Active
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