CN113478257A - Clamp for processing piston pin hole and bolt hole - Google Patents

Clamp for processing piston pin hole and bolt hole Download PDF

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Publication number
CN113478257A
CN113478257A CN202110765442.5A CN202110765442A CN113478257A CN 113478257 A CN113478257 A CN 113478257A CN 202110765442 A CN202110765442 A CN 202110765442A CN 113478257 A CN113478257 A CN 113478257A
Authority
CN
China
Prior art keywords
positioning
positioning plate
piston
plate
stud
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.)
Pending
Application number
CN202110765442.5A
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Chinese (zh)
Inventor
赵虎军
符博峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shannxi Diesel Engine Heavy Industry Co Ltd
Original Assignee
Shannxi Diesel Engine Heavy Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shannxi Diesel Engine Heavy Industry Co Ltd filed Critical Shannxi Diesel Engine Heavy Industry Co Ltd
Priority to CN202110765442.5A priority Critical patent/CN113478257A/en
Publication of CN113478257A publication Critical patent/CN113478257A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material

Abstract

The fixture for machining the piston pin hole and the bolt hole comprises a base and a positioning plate, wherein a vertical plate is vertically arranged on the base, two sides of the positioning plate are rotatably connected with the upper part of the vertical plate, and a piston is positioned through a spigot and is fixed on the positioning plate at one time; a positioning long support is arranged on the base and positioned on the same side of the two vertical plates, one side of the positioning plate is fixedly connected with the upper end of the positioning long support, so that the positioning plate is in a horizontal position, and a piston pin hole can be conveniently machined; the upper surface of the base is arranged between the two vertical plates and is provided with a positioning baffle plate, one side of the positioning baffle plate is provided with a stud II, the positioning plate is disassembled from the positioning long support, the positioning plate is rotated to a vertical state, the other side of the positioning plate is fixedly connected with the stud II, and the threaded hole on the piston is conveniently machined. The invention enables the piston pin hole and the bolt hole to be positioned by the spigot in a unified way in the processing process, and the processing is finished on the same equipment at one time, thereby ensuring the verticality requirement of the bolt hole relative to the piston pin hole, realizing the unified reference of the whole processing process, and improving the processing quality and the processing efficiency.

Description

Clamp for processing piston pin hole and bolt hole
Technical Field
The invention belongs to the technical field of clamps, and particularly relates to a clamp for machining a piston pin hole and a bolt hole.
Background
In the structure of an internal combustion engine, the function of a piston is very important, so the processing technology requirement of the piston is very high, for example, the piston skirt bolt hole has the verticality requirement on a piston pin hole. The existing processing method comprises the following steps: and positioning by using a piston skirt spigot, processing a piston pin hole in a horizontal processing center, positioning and clamping by using the top end excircle and the top end pin hole of the piston skirt, and processing a bolt hole in a vertical processing center. Among the above-mentioned processing scheme, fix a position with different positions during processing piston pinhole and bolt hole, process on different equipment for pinhole and bolt hole course of working benchmark are not unified, and the course of working needs the secondary positioning clamping, thereby lead to this process processing often out of tolerance, can't guarantee the straightness requirement that hangs down of bolt hole to the piston pinhole. And other processes in the processes of semi-finishing and finishing of the piston skirt are all to position by using the piston spigot, so that the reference of the whole piston machining process is not uniform due to positioning and clamping, reference conversion is needed, and the machining quality and the machining efficiency of the piston are influenced. There is therefore a need for improvements.
Disclosure of Invention
The technical problems solved by the invention are as follows: the invention provides a clamp for processing piston pin holes and bolt holes, which enables the pin holes and the bolt holes of a piston to be uniformly positioned by using a spigot of the piston in the processing process, can be processed and finished on the same equipment at one time without repeated disassembly and assembly positioning, ensures the verticality requirement of the bolt holes relative to the pin holes of the piston, realizes the uniform reference of the whole processing process, realizes the positioning processing of the pin holes and the bolt holes of the piston at one time, and improves the processing quality and the processing efficiency.
The technical scheme adopted by the invention is as follows: the fixture for machining the piston pin hole and the bolt hole comprises a base and a positioning plate, wherein vertical plates are vertically and fixedly arranged in the middle of the two sides of the upper surface of the base, the two sides of the positioning plate are respectively and rotatably connected with the upper parts of the two vertical plates, and a piston is positioned through a spigot and is fixed on the upper part of the positioning plate at one time; the upper surface of the base is provided with a positioning long support at the same side of the two vertical plates, and one side of the positioning plate is fixedly connected with the upper end of the positioning long support through a detachable structure so that the positioning plate is fixed in a horizontal position and the pin hole on the piston is convenient to process; the positioning baffle is arranged on the upper surface of the base between the two vertical plates, the stud II is arranged on one side of the positioning baffle, and after the positioning plate is disassembled from the positioning long support, the positioning plate drives the piston on the positioning plate to rotate to a vertical state and enables the other side of the positioning plate to be fixedly connected with the stud II so as to be convenient for processing a threaded hole in the piston.
The technical scheme is further limited, bearings are installed on the upper portions of the two vertical plates, rotating shafts are arranged on two sides of the positioning plate, and the rotating shafts are rotatably supported in the corresponding bearings.
Further inject above-mentioned technical scheme, the vertical stud I that is equipped with in location long support upper end, the locating plate is equipped with U type groove I on one side, I card in U type groove is gone into stud I and is realized fixing the locating plate horizontality through nut fixed connection.
Further inject above-mentioned technical scheme, the locating plate another side is equipped with U type groove II, II cards in U type groove are gone into stud II and are gone up and realize fixing the vertical state of locating plate through nut fixed connection.
The technical scheme is further limited, a long floating support and a short floating support are arranged on the upper surface of the base and located on the other same side of the two vertical plates, the long floating support is used for supporting the lower portion of the other side of the positioning plate when the positioning plate is in a horizontal state, and the short floating support is used for supporting the lower portion of the piston when the positioning plate is in a vertical state.
The technical scheme is further limited, a positioning ring which is suitable for positioning the piston with the seam allowance at the lower part of the piston is arranged on the upper surface of the positioning plate, and the piston and the positioning plate are positioned by a positioning pin; the two sides of the upper surface of the positioning plate are vertically provided with stud bolts III, and the two ends of the pressing plate are respectively fixedly connected with the upper ends of the stud bolts III through nuts so as to tightly press the piston on the positioning plate.
To the further injeciton of above-mentioned technical scheme, a side of locating plate is equipped with the drill bushing.
Compared with the prior art, the invention has the advantages that:
1. the clamp manufactured by the scheme enables the pin hole and the bolt hole of the piston to be uniformly positioned by the spigot of the piston in the machining process, and can be machined on the same equipment at one time without repeated disassembly, assembly and positioning, so that the verticality requirement of the bolt hole relative to the pin hole of the piston is ensured, the reference uniformity of the whole machining process is realized, the piston pin hole and the bolt hole are positioned and machined at one time, and the machining quality and the machining efficiency are improved;
2. the clamping device is simple in structure, convenient and quick to clamp and disassemble, simple and reliable in positioning, convenient to operate, convenient to process, low in manufacturing cost and wide in application range.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view structural diagram of the present invention;
FIG. 3 is a view showing a state of the present invention when machining a piston pin hole;
fig. 4 is a view showing a state of the present invention when machining a piston bolt hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements" does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Referring to fig. 1-4, embodiments of the present invention are described in detail.
The fixture for machining piston pin holes and bolt holes, as shown in fig. 1 and 2, comprises a base 1 and a positioning plate 3.
The middle parts of two sides of the upper surface of the base 1 are vertically welded and fixed with vertical plates 11, and two sides of the positioning plate 3 are respectively connected with the upper parts of the two vertical plates 11 in a rotating manner. Specifically, bearings 10 are installed on the upper portions of the two vertical plates 11, rotating shafts 9 are arranged on two sides of the positioning plate 3, and the rotating shafts 9 are rotatably supported in the corresponding bearings 10, so that the positioning plate 3 can rotate around the rotating shafts 9.
The piston 8 is fixed on the upper part of the positioning plate 3 through the spigot at one time. Specifically, a positioning ring 18 which is suitable for positioning the piston 8 with a seam allowance at the lower part of the piston 8 is arranged on the upper surface of the positioning plate 3, and the piston 8 and the positioning plate 3 are positioned by a positioning pin 14 to prevent the piston 8 from rotating; two sides of the upper surface of the positioning plate 3 are vertically provided with stud bolts III 7, two ends of the pressing plate 6 are respectively fixedly connected with two upper ends of the stud bolts III 7 through nuts 4 to tightly press the piston 8 on the positioning plate 3, and the pressing plate 6 tightly presses the piston 8, so that the complete positioning of the piston 8 is realized.
The upper surface of the base 1 is welded with the positioning long supports 2 at the same side of the two vertical plates 11, and one side of the positioning plate 3 is fixedly connected with the upper ends of the positioning long supports 2 through a detachable structure, so that the positioning plate 3 is fixed in a horizontal position and is convenient for processing pin holes in the piston 8. Specifically, 2 upper ends of the long supports in location are vertically equipped with stud I5, 3 sides of locating plate are equipped with U type groove I19, on I5 of stud and through 4 fixed connection realization fixes 3 horizontality to the locating plate in the U type groove are gone into to I19 card in U type groove.
The upper surface of the base 1 is positioned between the two vertical plates 11, a positioning baffle 13 is welded and arranged, a stud II 12 is arranged on one side of the positioning baffle 13, the positioning plate 3 and the positioning long support 2 are disassembled, the positioning plate 3 drives the piston 8 on the positioning plate to rotate to a vertical state, the other side of the positioning plate 3 is fixedly connected with the stud II 12, and a threaded hole in the piston 8 is conveniently machined. Specifically, 3 another sides of locating plate are equipped with II 20 in U type groove, II 20 cards in U type groove are gone into stud II 12 and are realized fixing 3 vertical states of locating plate through 4 fixed connection of nut.
The upper surface of the base 1 is provided with a long floating support 17 and a short floating support 16 on the other same side of the two vertical plates 11, the long floating support 17 is used for floating supporting the lower part of the other side of the positioning plate 3 when the positioning plate 3 is in a horizontal state, and the short floating support 16 is used for floating supporting the lower part of the piston 8 when the positioning plate 3 is in a vertical state.
And a drill bushing 15 is arranged on one side surface of the positioning plate 3 and used for alignment in the machining process.
Piston clamping and processing:
1. pin hole machining
As shown in fig. 3: in the processing process, the positioning plate 3 is fixed on the positioning long support 2 and is pressed tightly by the nut 4, so that the positioning plate 3 is in a horizontal state. The piston 8 is positioned with a positioning ring 18 on the positioning plate 3 through the spigot, is prevented from rotating through the positioning pin 14, and is pressed through the pressing plate 6, so that complete positioning is realized. The long floating support 17 is fixed on the other side of the positioning plate 3 by the base 1 through a threaded hole to support, so that the clamping rigidity and stability are enhanced. After the machining is started, the alignment is performed through the positioning pin holes in the positioning plate 3, so that the center positions of the pin holes of the pistons 8 are determined for machining.
2. Bolt hole machining
As shown in fig. 4: after the pinhole processing of piston 8 is accomplished, unpack the nut 4 of fixed position long support 2 and locating plate 3 apart to after promoting threaded connection department below threaded connection 17 with threaded connection long floating support, through the rotation of rotation axis 9 with locating plate 3 clockwise rotation 90 degrees, make and be in the vertical state, fix a position through stud II 12 on the locating baffle 13, compress tightly with nut 4, short floating support 16 supports piston 8 through the screw hole is fixed on base 1, reinforcing clamping rigidity and stability. After the machining is started, the alignment is carried out through the positioning pin holes in the positioning plate 3, so that the center position of the bolt hole is determined for machining.
The fixture enables the pin hole and the bolt hole of the piston 8 to be uniformly positioned by the spigot of the piston in the machining process, and can be machined on the same equipment at one time, so that the verticality requirement of the bolt hole relative to the pin hole of the piston is ensured, the reference uniformity of the whole machining process is realized, the piston pin hole and the bolt hole are positioned and machined at one time, and the machining quality and the machining efficiency are improved; simple structure, convenient and quick clamping and dismounting, simple and reliable positioning, convenient operation, convenient processing and wide application range.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A anchor clamps for processing piston pin hole and bolt hole, its characterized in that: the positioning device comprises a base (1) and a positioning plate (3), wherein vertical plates (11) are vertically and fixedly arranged in the middle of the two sides of the upper surface of the base (1), the two sides of the positioning plate (3) are respectively and rotatably connected with the upper parts of the two vertical plates (11), and a piston (8) is positioned through a spigot and is fixed on the upper part of the positioning plate (3) at one time; a positioning long support (2) is arranged on the upper surface of the base (1) and positioned on the same side of the two vertical plates (11), and one side of the positioning plate (3) is fixedly connected with the upper end of the positioning long support (2) through a detachable structure, so that the positioning plate (3) is fixed in a horizontal position and pin holes in the piston (8) can be conveniently machined; the upper surface of the base (1) is provided with a positioning baffle (13) between two vertical plates (11), one side of the positioning baffle (13) is provided with a stud II (12), the positioning plate (3) and the positioning long support (2) are disassembled, the positioning plate (3) drives a piston (8) on the positioning plate to rotate to a vertical state, and the other side of the positioning plate (3) is fixedly connected with the stud II (12) so as to be convenient for processing a threaded hole on the piston (8).
2. The jig for machining piston pin holes and bolt holes as defined in claim 1, wherein: bearings (10) are mounted on the upper portions of the two vertical plates (11), rotating shafts (9) are arranged on two sides of the positioning plate (3), and the rotating shafts (9) are rotatably supported in the corresponding bearings (10).
3. The jig for machining piston pin holes and bolt holes as defined in claim 1, wherein: the vertical stud I (5) that is equipped with in location long support (2) upper end, locating plate (3) are equipped with U type groove I (19) on one side, on I (5) of stud and through nut (4) fixed connection realization fixed to locating plate (3) horizontality in U type groove I (19) card.
4. The jig for machining piston pin holes and bolt holes as defined in claim 1, wherein: locating plate (3) another side is equipped with U type groove II (20), on II (12) of stud are gone into to U type groove II (20) card and realize fixing locating plate (3) vertical state through nut (4) fixed connection.
5. The jig for machining piston pin holes and bolt holes as defined in claim 1, wherein: the upper surface of the base (1) is provided with a long floating support (17) and a short floating support (16) on the other same side of the two vertical plates (11), the long floating support (17) is used for supporting the lower part of the other side of the positioning plate (3) when the positioning plate (3) is in a horizontal state, and the short floating support (16) is used for supporting the lower part of the piston (8) when the positioning plate (3) is in a vertical state.
6. The jig for machining piston pin holes and bolt holes as defined in claim 1, wherein: a positioning ring (18) which is suitable for positioning the piston (8) with a spigot at the lower part of the piston (8) is arranged on the upper surface of the positioning plate (3), and the piston (8) and the positioning plate (3) are positioned by a positioning pin (14); two sides of the upper surface of the positioning plate (3) are vertically provided with a stud bolt III (7), and two ends of the pressing plate (6) are respectively connected with two upper ends of the stud bolts III (7) through nuts (4) in a fixed manner so as to tightly press the piston (8) on the positioning plate (3).
7. The jig for machining piston pin holes and bolt holes as defined in claim 1, wherein: and a drill bushing (15) is arranged on one side surface of the positioning plate (3).
CN202110765442.5A 2021-07-07 2021-07-07 Clamp for processing piston pin hole and bolt hole Pending CN113478257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110765442.5A CN113478257A (en) 2021-07-07 2021-07-07 Clamp for processing piston pin hole and bolt hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110765442.5A CN113478257A (en) 2021-07-07 2021-07-07 Clamp for processing piston pin hole and bolt hole

Publications (1)

Publication Number Publication Date
CN113478257A true CN113478257A (en) 2021-10-08

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Application Number Title Priority Date Filing Date
CN202110765442.5A Pending CN113478257A (en) 2021-07-07 2021-07-07 Clamp for processing piston pin hole and bolt hole

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CN (1) CN113478257A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115383487A (en) * 2022-08-25 2022-11-25 陕西柴油机重工有限公司 Integrated device for processing and online detecting special-shaped pin hole of piston

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110084435A1 (en) * 2009-10-12 2011-04-14 Furlow Dennis L Adjustable Flip Stop Assembly For Positioning A Work piece
CN203853818U (en) * 2014-03-20 2014-10-01 浙江师范大学 Turning type clamp
CN104400708A (en) * 2014-11-13 2015-03-11 重庆创鼎金属铸造有限公司 Small general gasoline engine assembly fixture
CN105312605A (en) * 2015-11-27 2016-02-10 重庆渝记涵诚机械制造有限公司 Engine bracket bottom drilling method
CN206622870U (en) * 2017-04-13 2017-11-10 蓝思科技(长沙)有限公司 A kind of multi-angle rotary fixture
CN109623436A (en) * 2018-12-25 2019-04-16 合肥南方汽车零部件有限公司 A kind of overturning tooling and drilling machine
CN210436105U (en) * 2019-05-29 2020-05-01 天津津荣天宇精密机械股份有限公司 Multidirectional overturning clamping mechanism
CN112605920A (en) * 2020-12-17 2021-04-06 陕西宝成航空仪表有限责任公司 Clamp device suitable for three axial vibrations of components and parts
CN213258188U (en) * 2020-07-02 2021-05-25 贵州黔深科技发展有限公司 Turnover device for machining

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110084435A1 (en) * 2009-10-12 2011-04-14 Furlow Dennis L Adjustable Flip Stop Assembly For Positioning A Work piece
CN203853818U (en) * 2014-03-20 2014-10-01 浙江师范大学 Turning type clamp
CN104400708A (en) * 2014-11-13 2015-03-11 重庆创鼎金属铸造有限公司 Small general gasoline engine assembly fixture
CN105312605A (en) * 2015-11-27 2016-02-10 重庆渝记涵诚机械制造有限公司 Engine bracket bottom drilling method
CN206622870U (en) * 2017-04-13 2017-11-10 蓝思科技(长沙)有限公司 A kind of multi-angle rotary fixture
CN109623436A (en) * 2018-12-25 2019-04-16 合肥南方汽车零部件有限公司 A kind of overturning tooling and drilling machine
CN210436105U (en) * 2019-05-29 2020-05-01 天津津荣天宇精密机械股份有限公司 Multidirectional overturning clamping mechanism
CN213258188U (en) * 2020-07-02 2021-05-25 贵州黔深科技发展有限公司 Turnover device for machining
CN112605920A (en) * 2020-12-17 2021-04-06 陕西宝成航空仪表有限责任公司 Clamp device suitable for three axial vibrations of components and parts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115383487A (en) * 2022-08-25 2022-11-25 陕西柴油机重工有限公司 Integrated device for processing and online detecting special-shaped pin hole of piston

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