CN119347494A - A positioning fixture for piston processing - Google Patents
A positioning fixture for piston processing Download PDFInfo
- Publication number
- CN119347494A CN119347494A CN202411936475.1A CN202411936475A CN119347494A CN 119347494 A CN119347494 A CN 119347494A CN 202411936475 A CN202411936475 A CN 202411936475A CN 119347494 A CN119347494 A CN 119347494A
- Authority
- CN
- China
- Prior art keywords
- hole
- piston
- fixedly connected
- positioning fixture
- locking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention discloses a positioning fixture for piston machining, which comprises a supporting seat fixedly connected with the upper surface of a bottom plate, wherein the outer surface of the supporting seat is provided with a mounting hole, the inside of the mounting hole is rotationally connected with a movable sleeve, the inside of the movable sleeve is slidably connected with a guide pillar, the left end surface of the guide pillar is fixedly connected with a regulating table, the outer surface of the regulating table is provided with a through groove, the inside of the through groove is movably connected with a connecting seat, the upper surface of the regulating table is detachably connected with a piston, the outer surface of the connecting seat is provided with a jack, the inside of the jack is detachably connected with a bolt, the outer surface of the supporting seat is provided with a deformation joint, the upper surface of the supporting seat is provided with a locking hole, the inside of the locking hole is movably connected with a locking pin, and the fixture is suitable for machining pistons of various specifications, and can realize surface milling of the pistons and machining of various molding surfaces of the tops of the pistons through one-time assembly after the piston machining.
Description
Technical Field
The invention relates to the technical field of tool clamps, in particular to a positioning tool clamp for piston machining.
Background
The piston is an important component in the internal combustion engine, most of the pistons on the market at present are forged parts, and the surface of the forged piston is required to be further processed, so that in the piston processing process, the accurate positioning fixture is important for ensuring the processing precision and improving the production efficiency. The prior piston processing positioning clamp has some limitations, such as single applicable piston specification, and is difficult to meet diversified production requirements.
For the processing of different types of pistons, especially flat top pistons and various shaped top pistons, multiple jigs or complex adjustment processes are required, increasing production costs and time costs. In addition, in the processing process, the traditional clamp is difficult to realize continuous processing of multiple working procedures after one-time assembly for the surface milling of the piston and the processing of various molding surfaces at the top, so that the processing efficiency is low, and the overall production progress and the product quality are affected. The invention aims to solve the problems and provides a positioning fixture which is suitable for processing pistons with various specifications and can realize various processing procedures through simple adjustment.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a positioning fixture for piston machining, which is suitable for machining pistons with various specifications, and can realize surface milling of flat-top pistons and machining of various molding surfaces at the top of various molding top pistons after one-time assembly during piston machining through mutual matching with a machine tool and adjustment of left-right inclination angles and horizontal displacement of the fixture.
The invention also provides the positioning fixture for processing the piston, which comprises a bottom plate, wherein the upper surface of the bottom plate is fixedly connected with a supporting seat, the outer surface of the supporting seat is provided with a mounting hole, the inside of the mounting hole is rotationally connected with a movable sleeve, the inside of the movable sleeve is slidably connected with a guide pillar, the left end surface of the guide pillar is fixedly connected with a regulating table, the outer surface of the regulating table is provided with a through groove, the inside of the through groove is movably connected with a connecting seat, the upper surface of the regulating table is detachably connected with a piston, the outer surface of the connecting seat is provided with a jack, and the inside of the jack is detachably connected with a bolt;
the support seat is characterized in that a deformation joint is arranged on the outer surface of the support seat, a locking hole is formed in the upper surface of the support seat, a locking pin is movably connected to the inside of the locking hole, a guide support is fixedly connected to the left side surface of the movable sleeve, a sliding groove is formed in the lower surface of the guide support, a sliding block is slidably connected to the inside of the sliding groove, a lock nut is rotatably connected to the lower surface of the sliding block, a pull-down bolt is connected to the lock nut through threads, the upper end surface of the pull-down bolt is fixedly connected to the lower surface of the connecting seat, a long hole is formed in the guide pillar, a screw nut is fixedly connected to a port of the long hole, a rotating seat is fixedly connected to the right side outer surface of the movable sleeve, a second hand disc wheel is rotatably connected to an inner ring of the rotating seat, a screw rod is connected to the screw nut, a screw hole is formed in the outer surface of the guide support, a positioning nut is connected to the screw nut through threads, and the outer surface of the adjusting table is provided with a butt surface, and the positioning nut is movably connected to the butt surface.
According to the positioning fixture for piston machining, the oil filling hole is formed in the upper surface of the supporting seat, and the oil filling hole is communicated with the inside of the mounting hole. Lubricating oil is injected into the oil injection holes regularly, so that the lubricating effect of movable parts in the oil injection holes is effectively improved.
According to the positioning fixture for piston machining, the first punctuation mark is arranged on the right side surface of the supporting seat, the first staff gauge is fixedly connected to the outer surface of the movable sleeve, and the first hand disc wheel is fixedly connected to the right side end surface of the movable sleeve. Through the fixed mark point I, the movement of the mark ruler I is provided with a reference, so that the rotation angle of the movable sleeve is convenient to judge.
According to the positioning fixture for piston machining, provided by the invention, the second scale is fixedly connected to the upper surface of the guide support, the second mark point is arranged on the upper surface of the adjustment table, and the guide support is in sliding connection with the adjustment table. The movement of the second scale is provided with a reference through the fixed second punctuation, so that the left and right movement distance of the tuning table is convenient to judge.
According to the positioning fixture for piston machining, the four corners of the bottom plate are respectively provided with the opening spiral grooves, and the supporting seat is mutually perpendicular to the bottom plate. Through the open screw groove that sets up in the four corners department of bottom plate realization through bolt and lathe interconnect, the installation of this anchor clamps of being convenient for, its supporting seat is in the vertical state, and it effectively guarantees machining precision.
According to the positioning fixture for piston machining, the locking hole vertically penetrates through the deformation joint, the outer thread is arranged at the lower end part of the locking pin, the inner thread is arranged at the lower end part of the locking hole, the locking pin is in threaded connection with the locking hole, and the baffle is arranged at the upper ports of the locking pin and the locking hole. The deformation joint is reduced by screwing the locking pin, so that the inner diameter of the mounting hole is changed, and the movable sleeve is effectively fixed.
According to the positioning fixture for piston machining provided by the invention, the guide rails are fixedly connected to the front side and the rear side of the inner wall of the guide bracket, the guide grooves are formed in the outer surfaces of the front side and the rear side of the adjusting table, and the guide grooves are in sliding connection with the guide rails. The left-right horizontal movement of the tuning table is effectively realized.
According to the positioning fixture for piston machining, provided by the invention, the piston pin hole is formed in the side surface of the piston, the bolt is connected with the piston pin hole, and the lower surface of the piston is abutted against the upper surface of the adjusting table. The plug pin is used for penetrating through the piston pin hole on the piston and the jack on the connecting seat, so that connection between the piston and the connecting seat during processing is realized.
Compared with the prior art, the positioning fixture for piston machining is suitable for machining pistons of various specifications, and can realize surface milling of flat-top pistons and machining of various molding surfaces at the tops of various molding top pistons through one-time assembly during piston machining through mutual matching with a machine tool and adjustment of left-right inclination angles and horizontal displacement of the fixture.
Drawings
The invention is further described below with reference to the drawings and examples;
FIG. 1 is an overall structure diagram of a positioning fixture for piston machining;
FIG. 2 is a bottom view of a positioning fixture for piston machining in accordance with the present invention;
FIG. 3 is a top view of a positioning fixture for piston machining according to the present invention;
FIG. 4 is a side view of a positioning tooling fixture for piston machining of the present invention;
fig. 5 is an exploded view of a positioning tool fixture for piston machining according to the present invention.
Legend description:
1. The device comprises a bottom plate, a supporting seat, a3 part, an opening screw groove, a4 part, a deformation joint, a5 part, a locking pin, a6 part, an oil injection hole, a7 part, a first mark point, a8 part, a movable sleeve, a 9 part, a first hand wheel, a 10 part, a first scale, a 11 part, a second hand wheel, a 12 part, a rotating seat, a 13 part, a tuning table, a 14 part, a piston, a 15 part, a bolt, a 16 part, a screw hole, a 17 part, a guide bracket, a 18 part, a second scale, a 19 part, a second mark point, a 20 part, a locking nut, a 21 part, a pull-down bolt, a 22 part, a sliding block, a 23 part, a sliding groove, a 24 part, a positioning nut, a 25 part, a connecting seat, a 26 part, a through groove, a 27 part, a guiding groove, a 28 part, a contact surface, a 29 part, a guiding rail, a 30 part, a screw rod, a 31 part, a guide pillar, a 32 part, a long hole, a 33, a mounting hole, a 34 part and a locking hole.
Detailed Description
Reference will now be made in detail to the present embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present invention, but not to limit the scope of the present invention.
Referring to fig. 1-5, the positioning fixture for piston machining according to the embodiment of the invention comprises a bottom plate 1, wherein the bottom plate is used for being connected with a machine tool, so that the fixture is convenient to assemble. The upper surface of the base plate 1 is fixedly connected with a supporting seat 2 for supporting and adjusting a component for fixing the piston 14. The four corners of the bottom plate 1 are provided with open screw grooves 3 for connecting bolts, so that the bottom plate is effectively assembled on a machine tool. The supporting seat 2 is mutually perpendicular to the bottom plate 1. The outer surface of the supporting seat 2 is provided with a mounting hole 33, the inside of the mounting hole 33 is rotationally connected with a movable sleeve 8, the inside of the movable sleeve 8 is slidably connected with a guide pillar 31, the left end face of the guide pillar 31 is fixedly connected with a regulating table 13 for mounting pistons 14 of various types, and the upper surface of the regulating table 13 is a flat surface, so that the pistons 14 are in a horizontal state after being mounted. The surface of transfer platform 13 is equipped with logical groove 26, and the inside swing joint of logical groove 26 has connecting seat 25, and the upper surface of transfer platform 13 can dismantle and be connected with piston 14, and the side surface of piston 14 is equipped with the piston pinhole, and bolt 15 is connected with the piston pinhole, and the lower surface of piston 14 and the upper surface butt of transfer platform 13. The outer surface of connecting seat 25 is equipped with the jack, and the inside of jack is detachably connected with bolt 15 for fixed piston 14 makes interconnect between its and connecting seat 25.
The supporting seat 2 is provided with a deformation joint 4 on the outer surface, a construction joint reserved for reducing the inner diameter of the mounting hole 33 is arranged on the upper surface of the supporting seat 2, the locking hole 34 vertically penetrates through the deformation joint 4, an external thread is arranged at the lower end part of the locking pin 5, an internal thread is arranged at the lower end part of the locking hole 34, the locking pin 5 is in threaded connection with the locking hole 34, and a baffle is arranged at the upper ports of the locking pin 5 and the locking hole 34. The inside swing joint of locking hole 34 has locking pin 5, utilizes locking pin 5 to remove to locking hole 34 inside after rotatory through manual, receives the holding down force of baffle and closes the movement joint 4 clearance this moment, thereby mounting hole 33 internal diameter diminishes and locks inside movable sleeve 8, and the left side surface fixedly connected with of movable sleeve 8 leads to hold in the palm 17, leads to hold in the palm 17's upper surface fixedly connected with scale two 18, and the upper surface of adjusting platform 13 is equipped with punctuation two 19, leads to hold in the palm 17 and adjusting platform 13 sliding connection. The lower surface of the guide support 17 is provided with a chute 23, the inside of the chute 23 is connected with a slide block 22 in a sliding way, and the outer surface of the slide block 22 is provided with a through hole so as to be convenient for the pull-down bolt 21 to pass through from the inside. The lower surface of the sliding block 22 is rotationally connected with a lock nut 20, the lock nut 20 is connected with a pull-down bolt 21 through threads, the lock nut 20 is used for adjusting the overall height position of the connecting seat 25, when the piston 14 is installed, the lock nut 20 is screwed down, so that the pull-down bolt 21 tightens the connecting seat 25, the bottom of the piston 14 is contacted with the surface of the adjusting table 13, and the function of fixing the piston is achieved. The upper end surface of the pull-down bolt 21 is fixedly connected with the lower surface of the connecting seat 25.
The inside of guide pillar 31 is equipped with slot hole 32, provides effective range for lead screw 30 through slot hole 32, realizes transferring platform 13 on leading the horizontal migration of holding in the palm 17, and the port department fixedly connected with lead screw nut of slot hole 32, the right side surface fixedly connected with roating seat 12 of movable sleeve 8, the inner circle rotation of roating seat 12 is connected with hand wheel two 11 for the horizontal migration of adjusting platform 13. The outer surface of the second hand disc wheel 11 is fixedly connected with a screw rod 30, the screw rod 30 is connected with a screw rod nut, the outer surface of the guide support 17 is provided with a screw hole 16, the screw hole 16 is connected with a positioning nut 24 through threads, the outer surface of the adjusting table 13 is provided with an abutting surface 28, and the positioning nut 24 is movably connected with the abutting surface 28. Guide rails 29 are fixedly connected to the front side and the rear side of the inner wall of the guide support 17, guide grooves 27 are formed in the outer surfaces of the front side and the rear side of the tuning table 13, and the guide grooves 27 are in sliding connection with the guide rails 29. The upper surface of the supporting seat 2 is provided with an oil filling hole 6, and the oil filling hole 6 is communicated with the inside of the mounting hole 33. The right side surface of supporting seat 2 is equipped with punctuation one 7, and movable sleeve 8's surface fixedly connected with scale one 10, and movable sleeve 8's right side terminal surface fixedly connected with hand dish wheel one 9 for manual adjustment movable sleeve 8's rotation angle realizes the adjustment of the inclination of adjusting platform 13.
The working principle is that when the clamp is used, the clamp is installed on a machine tool through a bottom plate 1, a bolt penetrates through an opening screw groove 3 to realize fixed connection with the machine tool, a connecting seat 25 is adjusted to a proper height through a lock nut 20, a piston 14 is installed on the connecting seat 25, a piston pin hole is mutually aligned with an inserting hole on the connecting seat 25, a bolt 15 penetrates through a piston pin hole on the right side of the piston 14 and penetrates through an inserting hole on the connecting seat 25 and then penetrates out of a piston pin hole on the left side of the piston 14, the lock nut 20 is screwed to enable a pull-down bolt 21 to pull the connecting seat 25 downwards, at the moment, the skirt bottom surface of the piston 14 is in contact with a regulating table 13 and mutually abuts against, a hand disc wheel 9 is manually regulated to enable a movable sleeve 8 to rotate, when the movable sleeve 8 rotates according to the machining requirement, a scale one 10 and a mark one 7 are used as rotation angle reference, after a specified angle is reached, a locking pin 5 is screwed, at the moment, a deformation gap 4 is reduced, the inner diameter of an installing hole 33 is reduced, the movable sleeve 8 is locked, and the inclination angle is fixed.
When the positioning nut 24 and the lock nut 20 are respectively unscrewed during processing and horizontally moved, the screw rod 30 is rotated after the second hand wheel 11 is screwed, so that the adjustment table 13 moves left and right, the left and right movement distance is determined by taking the second punctuation mark 19 and the second ruler 18 as references during movement, and the positioning nut 24 and the lock nut 20 are screwed again after adjustment.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411936475.1A CN119347494B (en) | 2024-12-26 | 2024-12-26 | Positioning tool clamp for piston machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411936475.1A CN119347494B (en) | 2024-12-26 | 2024-12-26 | Positioning tool clamp for piston machining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN119347494A true CN119347494A (en) | 2025-01-24 |
| CN119347494B CN119347494B (en) | 2025-04-22 |
Family
ID=94318160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411936475.1A Active CN119347494B (en) | 2024-12-26 | 2024-12-26 | Positioning tool clamp for piston machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119347494B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2757507A1 (en) * | 1976-12-30 | 1978-07-06 | Deragne Freres | HYDRAULICALLY ACTUATED CLAMPING DEVICE |
| KR970044969U (en) * | 1995-12-26 | 1997-07-31 | 대우자동차주식회사 | Jig for fixing the piston for 3D measurement |
| JPH10202455A (en) * | 1997-01-20 | 1998-08-04 | Ricoh Co Ltd | Holder |
| KR19980046434A (en) * | 1996-12-12 | 1998-09-15 | 박병재 | Jig for Shock Absorber Piston Valve Tuning |
| KR20130026147A (en) * | 2011-09-05 | 2013-03-13 | 자동차부품연구원 | Jig for piston ring and laser surface texturing method using the same |
| CN204868210U (en) * | 2015-07-27 | 2015-12-16 | 浙江吉利汽车研究院有限公司 | Location frock of triaxial numerically controlled fraise machine |
| CN209288587U (en) * | 2018-09-18 | 2019-08-23 | 昆明理工大学 | An Angle Adjustable Welding Fixture |
| CN212793630U (en) * | 2020-06-16 | 2021-03-26 | 西安微思柏电子科技有限公司 | Chip packaging auxiliary welding device for chip manufacturing |
| CN113635087A (en) * | 2021-07-13 | 2021-11-12 | 沈阳航天新光集团有限公司 | Special-shaped pressure reducer force limiting fixture |
| CN217168182U (en) * | 2022-01-11 | 2022-08-12 | 山东工业职业学院 | But angle regulation's work piece holder for mechanical numerical control processing |
| CN115026578A (en) * | 2022-06-23 | 2022-09-09 | 中国兵器科学研究院宁波分院 | Matched tool and method for turning and milling composite machining piston |
| CN217530048U (en) * | 2022-04-20 | 2022-10-04 | 昆山伟创立精密模架有限公司 | Auxiliary drilling tool with adjustable inclination angle |
| CN218137918U (en) * | 2022-07-31 | 2022-12-27 | 苏州市苏润机械科技有限公司 | Automatic 360-degree accurate turnover device |
| CN116160042A (en) * | 2022-12-29 | 2023-05-26 | 山东威达重工股份有限公司 | Adopt 3+2+1 planer-type microprill hole center |
-
2024
- 2024-12-26 CN CN202411936475.1A patent/CN119347494B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2757507A1 (en) * | 1976-12-30 | 1978-07-06 | Deragne Freres | HYDRAULICALLY ACTUATED CLAMPING DEVICE |
| KR970044969U (en) * | 1995-12-26 | 1997-07-31 | 대우자동차주식회사 | Jig for fixing the piston for 3D measurement |
| KR19980046434A (en) * | 1996-12-12 | 1998-09-15 | 박병재 | Jig for Shock Absorber Piston Valve Tuning |
| JPH10202455A (en) * | 1997-01-20 | 1998-08-04 | Ricoh Co Ltd | Holder |
| KR20130026147A (en) * | 2011-09-05 | 2013-03-13 | 자동차부품연구원 | Jig for piston ring and laser surface texturing method using the same |
| CN204868210U (en) * | 2015-07-27 | 2015-12-16 | 浙江吉利汽车研究院有限公司 | Location frock of triaxial numerically controlled fraise machine |
| CN209288587U (en) * | 2018-09-18 | 2019-08-23 | 昆明理工大学 | An Angle Adjustable Welding Fixture |
| CN212793630U (en) * | 2020-06-16 | 2021-03-26 | 西安微思柏电子科技有限公司 | Chip packaging auxiliary welding device for chip manufacturing |
| CN113635087A (en) * | 2021-07-13 | 2021-11-12 | 沈阳航天新光集团有限公司 | Special-shaped pressure reducer force limiting fixture |
| CN217168182U (en) * | 2022-01-11 | 2022-08-12 | 山东工业职业学院 | But angle regulation's work piece holder for mechanical numerical control processing |
| CN217530048U (en) * | 2022-04-20 | 2022-10-04 | 昆山伟创立精密模架有限公司 | Auxiliary drilling tool with adjustable inclination angle |
| CN115026578A (en) * | 2022-06-23 | 2022-09-09 | 中国兵器科学研究院宁波分院 | Matched tool and method for turning and milling composite machining piston |
| CN218137918U (en) * | 2022-07-31 | 2022-12-27 | 苏州市苏润机械科技有限公司 | Automatic 360-degree accurate turnover device |
| CN116160042A (en) * | 2022-12-29 | 2023-05-26 | 山东威达重工股份有限公司 | Adopt 3+2+1 planer-type microprill hole center |
Also Published As
| Publication number | Publication date |
|---|---|
| CN119347494B (en) | 2025-04-22 |
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