CN220128243U - Locating pin structure for machining - Google Patents
Locating pin structure for machining Download PDFInfo
- Publication number
- CN220128243U CN220128243U CN202320965182.0U CN202320965182U CN220128243U CN 220128243 U CN220128243 U CN 220128243U CN 202320965182 U CN202320965182 U CN 202320965182U CN 220128243 U CN220128243 U CN 220128243U
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- China
- Prior art keywords
- seat
- mounting
- positioning pin
- limiting
- adjusting
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- 238000003754 machining Methods 0.000 title claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 20
- 238000004519 manufacturing process Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
Abstract
The utility model discloses a positioning pin structure for machining, which comprises a positioning pin seat and a positioning pin, and is characterized in that the positioning pin comprises a positioning section and a mounting section which are sequentially arranged from top to bottom, and the mounting section is detachably arranged on the positioning pin seat. The positioning pin seat has the advantages that the positioning pin seat is detachably arranged on the mounting section of the positioning pin, and when the positioning pin is worn, the positioning pin is only required to be replaced, so that the positioning pin seat is simple in structure and the cost is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of machining positioning, in particular to a positioning pin structure for machining.
Background
In machining, the positioning of a workpiece to be machined is conventionally realized by matching a hole in the workpiece with a positioning pin on a tool, and aiming at batch machining of products, the positioning pin on the tool is greatly lost, so that the positioning precision cannot meet the machining requirement, and further the machining precision of the products is poor. The positioning pin conventionally used at present is usually of an integral structure, namely, a positioning pin seat and a positioning pin for realizing the positioning pin are of an integral structure, and after the positioning pin of the integral structure is worn, the positioning pin needs to be replaced integrally, so that the use cost is high.
Disclosure of Invention
The utility model aims to solve the technical problem of providing the positioning pin structure for machining, which has a simple structure and low use cost.
The technical scheme adopted for solving the technical problems is as follows:
the positioning pin structure for machining comprises a positioning pin seat and a positioning pin, wherein the positioning pin comprises a positioning section and a mounting section which are coaxially arranged from top to bottom, and the mounting section is detachably arranged on the positioning pin seat.
The positioning pin seat is provided with a mounting hole for the vertical insertion and mounting of the mounting section, the mounting section is inserted and arranged in the mounting hole, and a limiting mechanism for limiting the mounting position of the mounting section is arranged between the positioning pin seat and the mounting section. The installation section is inserted and installed in the installation hole, locks through stop gear, simple structure, and the locking position is stable.
Stop gear include stop screw, the lateral part of locating pin seat be provided with stop screw matched with internal thread hole, internal thread hole with the mounting hole be linked together, the central axis of internal thread hole with the central axis of mounting hole mutually perpendicular, the lateral part of installation section be provided with matched with spacing sunken, spacing screw spiro union install internal thread hole in, an end of stop screw stretch into the setting and be in spacing sunken in realizing the locking position. Limiting bolts and limiting depressions are matched to limit the installation position of the positioning pin, the structure is simple, the limiting is firm, and the installation and the disassembly are convenient.
The limiting depression is provided with an upper limiting surface and a limiting abutting surface, the limiting abutting surface is an inclined end surface inclined outwards from top to bottom, and one end of the limiting screw abuts against the limiting abutting surface in a limiting state. The upper limiting surface is used for playing a limiting role, the limiting abutting surface is an inclined end surface, and fine adjustment of the installation position of the positioning pin can be realized to ensure positioning accuracy.
The limit screw is an inner hexagon screw. Is convenient to install and disassemble.
The mounting holes are through holes which are vertically communicated. Is convenient to manufacture.
The locating pin seat comprises a mounting seat and an adjusting seat which are sequentially arranged from top to bottom, the inner threaded hole is formed in the side part of the mounting seat, an L-shaped adjusting seat is arranged on the side part of the adjusting seat, the adjusting seat is arranged on a locating base of the tool, and the position of the locating pin on the locating base of the tool is adjustable by installing an adjusting gasket between the adjusting seat and the adjusting seat. The positioning pin positioning device has the advantages that the positioning pin can be finely adjusted on the positioning base of the tool through the structural design, the situation that the positioning pin cannot be aligned or the hole and the positioning pin are blocked due to slight deformation of a workpiece can be effectively avoided, and the positioning precision requirement of the workpiece can be effectively met.
The adjusting seat comprises a first adjusting block and a second adjusting block, one end of the first adjusting block is connected with one end of the second adjusting block to enable the adjusting seat to be L-shaped, the inner side end face of the first adjusting block is parallel to the inner side end face of the second adjusting block, a mounting recess for mounting the adjusting seat is formed, the side end face, opposite to the inner side end face of the first adjusting block, of the adjusting seat is parallel to the inner side end face of the first adjusting block, and the side end face, opposite to the inner side end face of the second adjusting block, of the adjusting seat is parallel to the inner side end face of the second adjusting block;
the adjusting seat is provided with internal thread connecting holes on two side end faces opposite to the inner side end face of the first adjusting block and the inner side end face of the second adjusting block, the first adjusting block and the second adjusting block are respectively provided with connecting through holes which are internally and externally communicated and matched with the internal thread connecting holes, and the adjusting seat is detachably connected with the adjusting seat through connecting bolts or connecting screws matched with the internal thread connecting holes. The position of the positioning pin in the X and Y directions can be adjusted through the adjusting seat.
The adjusting gasket is provided with a through installation through groove with an opening at the lower part, and the installation through groove can be used for the connecting bolt or the connecting screw to pass through for installation. The structure realizes that the connecting bolts or the connecting screws are not required to be completely detached when the adjusting gaskets are installed, detached or replaced, and the efficiency is improved.
The positioning section comprises a guide part and a positioning part which are coaxially arranged from top to bottom, the guide part is a round table body with an gradually-enlarged outer diameter from top to bottom, the positioning part is a cylinder, the outer diameter of the positioning part is equal to the maximum outer diameter of the guide part, the outer diameter of the positioning part is larger than the outer diameter of the mounting section, and the outer diameter of the positioning part is larger than the inner diameter of the mounting hole. A limit installation step is formed between the positioning section and the installation section, and the installation position of the positioning pin is positioned and limited.
Compared with the prior art, the utility model has the advantages that: the installation section of the locating pin is detachably arranged on the locating pin seat, and when the locating pin is worn, the locating pin is only required to be replaced, so that the structure is simple, and the cost is effectively reduced.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a first embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view of a dowel seat according to a first embodiment of the present utility model;
FIG. 4 is a schematic perspective view of a locating pin according to the present utility model;
FIG. 5 is a schematic cross-sectional view of a pin boss in a second embodiment of the present utility model;
fig. 6 is a schematic perspective view of a second embodiment of the present utility model;
FIG. 7 is a schematic perspective view of a second embodiment of a regulator sheet;
FIG. 8 is a schematic perspective view of an adjusting seat according to the present utility model;
fig. 9 is a schematic cross-sectional view of a second embodiment of the present utility model.
Description of the embodiments
The utility model is described in further detail below with reference to the embodiments of the drawings.
Embodiment one: as shown in the figure, a positioning pin structure for machining comprises a positioning pin seat 1 and a positioning pin 2, wherein the positioning pin 2 comprises a positioning section 201 and a mounting section 202 which are coaxially arranged from top to bottom, and the mounting section 202 is detachably arranged on the positioning pin seat 1.
In this embodiment, the locating pin base 1 is provided with a mounting hole 11 for vertically inserting and mounting the mounting section 202, the mounting section 202 is inserted and arranged in the mounting hole 11, and a limiting mechanism for limiting the mounting position of the mounting section 202 is arranged between the locating pin base 1 and the mounting section 202. The mounting section 202 is inserted and mounted in the mounting hole 11 and is locked through the limiting mechanism, so that the structure is simple and the locking position is stable.
In this embodiment, stop gear includes stop screw 3, and the lateral part of locating pin seat 1 is provided with the internal thread hole 12 with stop screw 3 matched with, and internal thread hole 12 is linked together with mounting hole 11, and the central axis of internal thread hole 12 is mutually perpendicular with the central axis of mounting hole 11, and the lateral part of installation section 202 is provided with matched with spacing sunken 21, and stop screw 3 spiro union is installed in internal thread hole 12, and one end of stop screw 3 stretches into the setting and realizes the locking position in spacing sunken 21. The limit of the installation position of the locating pin 2 is realized through the matching of the limit screw 3 and the limit recess 21, the structure is simple, the limit is firm, and the installation and the disassembly are convenient.
In this embodiment, the limiting recess 21 has an upper limiting surface 211 and a limiting abutment surface 212, the limiting abutment surface 212 is an inclined end surface inclined outwards from top to bottom, and in the limiting state, one end of the limiting screw 3 abuts against the limiting abutment surface 212. The upper limiting surface 211 is used for playing a limiting role, the limiting abutting surface 212 is an inclined end surface, and fine adjustment of the installation position of the positioning pin 2 can be realized to ensure positioning accuracy.
In this embodiment, the limit screw 3 is a socket head cap screw. Is convenient to install and disassemble.
In this embodiment, the mounting hole 11 is a through hole penetrating up and down. Is convenient to manufacture.
In this embodiment, the positioning section 201 includes a guiding portion 2011 and a positioning portion 2012 coaxially disposed from top to bottom, the guiding portion 2011 is a truncated cone with an outer diameter gradually increasing from top to bottom, the positioning portion 2012 is a cylinder, the outer diameter of the positioning portion 2012 is equal to the maximum outer diameter of the guiding portion 2011, the outer diameter of the positioning portion 2012 is larger than the outer diameter of the mounting section 202, and the outer diameter of the positioning portion 2012 is larger than the inner diameter of the mounting hole 11. A limiting installation step is formed between the positioning section 201 and the installation section 202, and the installation position of the positioning pin 2 is positioned and limited.
Embodiment two: other parts are the same as the first embodiment, and the difference is that the locating pin seat 1 comprises a mounting seat 101 and an adjusting seat 102 which are sequentially arranged from top to bottom, an internal threaded hole 12 is formed in the side part of the mounting seat 101, an L-shaped adjusting seat 4 is arranged on the side part of the adjusting seat 102, the adjusting seat 4 is arranged on a locating base of the fixture, and the position of the locating pin 2 on the locating base of the fixture is adjustable by arranging an adjusting gasket 5 between the adjusting seat 4 and the adjusting seat 102. The positioning pin 2 can be finely adjusted on the positioning base of the tool through the structural design, the situation that the positioning pin 2 cannot be aligned or the hole and the positioning pin 2 are blocked and the like due to slight deformation of a workpiece can be effectively avoided, and the positioning precision requirement of the workpiece can be effectively met.
In this embodiment, the adjusting seat 4 includes a first adjusting block 41 and a second adjusting block 42, one end of the first adjusting block 41 is connected with one end of the second adjusting block 42 to make the adjusting seat 4 in an L shape, an inner side end surface of the first adjusting block 41 is parallel to an inner side end surface of the second adjusting block 42 and forms a mounting recess 43 for mounting the adjusting seat 102, a side end surface of the adjusting seat 102 opposite to the inner side end surface of the first adjusting block 41 is parallel to the inner side end surface of the first adjusting block 41, and a side end surface of the adjusting seat 102 opposite to the inner side end surface of the second adjusting block 42 is parallel to the inner side end surface of the second adjusting block 42;
the two side end surfaces of the adjusting seat 102 opposite to the inner side end surface of the first adjusting block 41 and the inner side end surface of the second adjusting block 42 are respectively provided with an internal thread connecting hole 13, the first adjusting block 41 and the second adjusting block 42 are respectively provided with a connecting through hole 44 which is internally and externally communicated and matched with the internal thread connecting hole 13, and the detachable connection between the adjusting seat 102 and the adjusting seat 4 is realized through a connecting bolt or a connecting screw (not assembled in the figure) matched with the internal thread connecting hole 13. The adjustment of the position of the positioning pin 2 in the X and Y directions can be achieved by the adjustment seat 4 described above.
In this particular embodiment, the adjusting washer 5 has a through-going and open-bottomed mounting through slot 51, the mounting through slot 51 being accessible for a connecting bolt or a connecting screw to be mounted through. The structure realizes that the connecting bolts or the connecting screws are not required to be completely detached when the adjusting gaskets are installed, detached or replaced, and the efficiency is improved.
In this particular embodiment, the inner diameter of the connection through-hole 44 is larger than the inner diameter of the female screw connection hole 13, and the diameter difference between the inner diameter of the connection through-hole 44 and the inner diameter of the female screw connection hole 13 is 0.5mm. On the premise of ensuring stable connection, the adjustable stroke of the positioning pin 2 in the X and Y directions can be at most 0.25 mm.
Claims (7)
1. The positioning pin structure for machining comprises a positioning pin seat and a positioning pin, and is characterized in that the positioning pin comprises a positioning section and a mounting section which are coaxially arranged from top to bottom, and the mounting section is detachably arranged on the positioning pin seat;
the positioning pin seat is provided with a mounting hole for vertically inserting and mounting the mounting section, the mounting section is inserted and arranged in the mounting hole, and a limiting mechanism for limiting the mounting position of the mounting section is arranged between the positioning pin seat and the mounting section;
the limiting mechanism comprises a limiting screw, an internal threaded hole matched with the limiting screw is formed in the side part of the positioning pin seat, the internal threaded hole is communicated with the mounting hole, the central axis of the internal threaded hole is perpendicular to the central axis of the mounting hole, a matched limiting recess is formed in the side part of the mounting section, the limiting screw is in threaded connection with the internal threaded hole, and one end of the limiting screw extends into the limiting recess to realize limiting;
the locating pin seat comprises a mounting seat and an adjusting seat which are sequentially arranged from top to bottom, the inner threaded hole is formed in the side part of the mounting seat, an L-shaped adjusting seat is arranged on the side part of the adjusting seat, the adjusting seat is arranged on a locating base of the tool, and the position of the locating pin on the locating base of the tool is adjustable by installing an adjusting gasket between the adjusting seat and the adjusting seat.
2. The positioning pin structure for machining according to claim 1, wherein the limiting recess has an upper limiting surface and a limiting abutment surface, the limiting abutment surface is an inclined end surface inclined outwards from top to bottom, and in the limiting state, one end of the limiting screw abuts against the limiting abutment surface.
3. The positioning pin structure for machining according to claim 1, wherein the limit screw is an inner hexagon screw.
4. The positioning pin structure for machining according to claim 1, wherein the mounting hole is a through hole penetrating up and down.
5. The positioning pin structure for machining according to claim 1, wherein said adjustment seat comprises a first adjustment block and a second adjustment block, one end of said first adjustment block is connected to one end of said second adjustment block so that said adjustment seat is L-shaped, an inner side end surface of said first adjustment block is parallel to an inner side end surface of said second adjustment block and forms a mounting recess for mounting said adjustment seat, a side end surface of said adjustment seat opposite to said inner side end surface of said first adjustment block is parallel to said inner side end surface of said first adjustment block, and a side end surface of said adjustment seat opposite to said inner side end surface of said second adjustment block is parallel to said inner side end surface of said second adjustment block;
the adjusting seat is provided with internal thread connecting holes on two side end faces opposite to the inner side end face of the first adjusting block and the inner side end face of the second adjusting block, the first adjusting block and the second adjusting block are respectively provided with connecting through holes which are internally and externally communicated and matched with the internal thread connecting holes, and the adjusting seat is detachably connected with the adjusting seat through connecting bolts or connecting screws matched with the internal thread connecting holes.
6. The positioning pin structure for machining according to claim 5, wherein the adjusting washer has a through-hole and a lower opening mounting through-hole, and the mounting through-hole is provided for the connecting bolt or the connecting screw to pass through for mounting.
7. The positioning pin structure for machining according to claim 1, wherein the positioning section comprises a guiding portion and a positioning portion coaxially arranged from top to bottom, the guiding portion is a truncated cone with an outer diameter gradually increased from top to bottom, the positioning portion is a cylinder, the outer diameter of the positioning portion is equal to the maximum outer diameter of the guiding portion, the outer diameter of the positioning portion is larger than the outer diameter of the mounting section, and the outer diameter of the positioning portion is larger than the inner diameter of the mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320965182.0U CN220128243U (en) | 2023-04-24 | 2023-04-24 | Locating pin structure for machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320965182.0U CN220128243U (en) | 2023-04-24 | 2023-04-24 | Locating pin structure for machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220128243U true CN220128243U (en) | 2023-12-05 |
Family
ID=88950607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320965182.0U Active CN220128243U (en) | 2023-04-24 | 2023-04-24 | Locating pin structure for machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220128243U (en) |
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2023
- 2023-04-24 CN CN202320965182.0U patent/CN220128243U/en active Active
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| GR01 | Patent grant |