CN110900511A - Tool for assembling positioning pin of bearing cap of cylinder cover - Google Patents
Tool for assembling positioning pin of bearing cap of cylinder cover Download PDFInfo
- Publication number
- CN110900511A CN110900511A CN201911338319.4A CN201911338319A CN110900511A CN 110900511 A CN110900511 A CN 110900511A CN 201911338319 A CN201911338319 A CN 201911338319A CN 110900511 A CN110900511 A CN 110900511A
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- China
- Prior art keywords
- hole
- clamp spring
- bottom plate
- cover
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a tool for assembling a positioning pin of a bearing cover of a cylinder cover, which comprises a cover plate, a bottom plate, a clamp spring and a pressing block, wherein the cover plate is fixedly connected with the bottom plate; a guide positioning component is arranged on the bottom surface of the bottom plate; the guide positioning assembly comprises a radial positioning block which can be matched with a camshaft hole on the cylinder cover, and an axial positioning block which can be attached to the end face of the cylinder cover on the cylinder cover; the bottom plate is provided with a first through hole, and the clamp spring is in interference fit with the first through hole; the cover plate is fixedly connected with the bottom plate through bolts; the cover plate is provided with a second through hole at the position corresponding to the first through hole; the second through hole is a stepped hole and comprises an upper small-aperture section and a lower large-aperture section; the briquetting includes coaxial last cylinder section, well cylinder section and the cylinder section down that sets up, goes up cylinder section and last aperture section clearance fit, well cylinder section and big aperture section clearance fit down, lower cylinder section and jump ring clearance fit down. The invention can improve the assembly efficiency.
Description
Technical Field
The invention belongs to the technical field of assembling tools for positioning pins, and particularly relates to a tool for assembling a positioning pin of a bearing cover of a cylinder cover.
Background
On the cylinder head machine adds the production line, the locating pin is small, and the surface is smooth, directly snatchs the locating pin through manual and aims at its interference fit's locating pin hole easy landing, uses the in-process of knocking through instruments such as plastics hammer still pounding the finger easily, and the installation effectiveness of bearing cap locating pin is low, and the installation altitude uniformity is poor.
Therefore, it is necessary to develop a new tool for assembling the positioning pin of the bearing cap of the cylinder head.
Disclosure of Invention
The invention aims to provide a tool for assembling a positioning pin of a bearing cover of a cylinder cover, which can ensure the consistency of the mounting height of the positioning pin and can improve the assembling efficiency.
The invention relates to a tool for assembling a positioning pin of a bearing cover of a cylinder cover, which comprises a cover plate, a bottom plate, a clamp spring and a pressing block;
a guide positioning assembly is arranged on the bottom surface of the bottom plate; the guide positioning assembly comprises a radial positioning block which can be matched with a camshaft hole on the cylinder cover, and an axial positioning block which can be attached to the end face of the cylinder cover on the cylinder cover;
the bottom plate is provided with a first through hole, and the clamp spring is in interference fit with the first through hole;
the cover plate is fixedly connected with the bottom plate through bolts; the cover plate is provided with a second through hole at the position corresponding to the first through hole; the second through hole is a stepped hole and comprises an upper small-aperture section and a lower large-aperture section;
the briquetting includes coaxial last cylinder section, well cylinder section and the cylinder section down that sets up, go up cylinder section and last aperture section clearance fit, well cylinder section and big aperture section clearance fit down, lower cylinder section and jump ring clearance fit down.
Furthermore, the left end part and the right end part of the bottom plate are respectively provided with a guiding and positioning component;
the left end part and the right end part of the bottom plate are respectively provided with a first through hole; a clamp spring is arranged in each first through hole;
the number of the cover plates is two, and the second through holes in the two cover plates are in one-to-one correspondence with the two first through holes in the bottom plate respectively.
Further, the clamp spring comprises a cylindrical clamp spring body, a plurality of open grooves are uniformly distributed in the circumferential direction of the upper end of the clamp spring body, and when the clamp spring is in a free state, the outer contour size of the upper end of the clamp spring is larger than that of the lower end of the clamp spring.
The upper end of the clamp spring is in interference fit with the first through hole, and a gap is formed between the lower end of the clamp spring and the wall of the first through hole; because a certain clearance is formed between the lower end of the clamp spring and the bottom plate, the clamp spring can be ensured not to interfere with the bottom plate in the clamping process of the positioning pin through the clearance, certain clamping force of the clamp spring on the positioning pin is ensured, and the positioning pin can be effectively prevented from sliding down when the tooling is in any posture.
And a handle is arranged on one side of the bottom plate, so that the operation is convenient.
The invention has the following advantages: the clamp spring is embedded in the bottom plate, the preassembled positioning pin can be fixed through the clamp spring, and the positioning pin can be prevented from sliding off in the delivery process. The guide positioning assembly on the bottom plate is positioned in contact with the camshaft hole and the end face of the cylinder cover, so that the positioning pin can be quickly aligned with the positioning pin hole, and the efficiency is improved. In the installation process, a tool is used for knocking the top surface of the pressing block to force the lower end surface of the pressing block to press the positioning pin to move downwards to enter the pin hole; after the pressing block is matched with the cover plate and the bottom plate, the stroke of the pressing block is effectively limited, and the depth of the positioning pin entering the positioning pin hole of the cylinder cover can be well guaranteed.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
FIG. 3 is a third schematic structural diagram of the present invention;
FIG. 4 is a schematic structural view of the clamp spring of the present invention;
FIG. 5 is a schematic view of the cylinder head;
FIG. 6 is a schematic view of the assembly process using the present invention;
in the figure: 1. the pressure block, 1a, go up the cylinder section, 1b, well cylinder section, 1c, cylinder section down, 2, apron, 2a, go up the aperture section, 2b, big aperture section down, 3, bottom plate, 3a, first through-hole, 4, bolt, 5, axial locating piece, 6, handle, 7, radial locating piece, 8, jump ring, 8a, jump ring body, 8b, open slot, 9, cylinder head, 9a, camshaft hole, 9b, cylinder head terminal surface, 10, locating pin.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 to 3, the tool for assembling the positioning pin of the bearing cap of the cylinder head comprises a cover plate 2, a bottom plate 3, a clamp spring 8 and a pressing block 1. A guiding and positioning assembly is arranged on the bottom surface of the bottom plate 3; the guiding and positioning assembly comprises a radial positioning block 7 which can be matched with a camshaft hole 9a on the cylinder cover 9, and an axial positioning block 5 which can be attached to a cylinder cover end face 9b on the cylinder cover 9. A first through hole 3a is formed in the bottom plate 3, and the clamp spring 8 is in interference fit with the first through hole 3 a. The cover plate 2 is fixedly connected with the bottom plate 3 through bolts 4; the cover plate 2 is provided with a second through hole at the position corresponding to the first through hole 3 a; the second through hole is a stepped hole, which includes an upper small-bore section 2a and a lower large-bore section 2 b. The briquetting 1 includes coaxial last cylinder section 1a, well cylinder section 1b and lower cylinder section 1c that sets up, go up cylinder section 1a and last small aperture section 2a clearance fit, well cylinder section 1b and lower large aperture section 2b clearance fit, lower cylinder section 1c and jump ring 8 clearance fit.
As shown in fig. 1, in the present embodiment, two guiding and positioning assemblies are respectively disposed at the left and right ends of the bottom plate 3; the left end part and the right end part of the bottom plate 3 are respectively provided with a first through hole 3 a; a clamp spring 8 is arranged in each first through hole 3 a; the number of the cover plates 2 is two, and the second through holes on the two cover plates 2 are respectively in one-to-one correspondence with the two first through holes 3a on the bottom plate 3.
As shown in fig. 4, the clamp spring 8 includes a cylindrical clamp spring body 8a, and a plurality of open grooves 8b are uniformly distributed in the circumferential direction of the upper end of the clamp spring body 8 a; when the clamp spring 8 is in a free state, the size of the outer contour of the upper end of the clamp spring 8 is larger than that of the outer contour of the lower end of the clamp spring 8.
As shown in fig. 3, the upper end of the snap spring 8 is in interference fit with the first through hole 3a, and a gap is formed between the lower end of the snap spring 8 and the hole wall of the first through hole 3 a. Because a certain clearance is formed between the lower end of the clamp spring 8 and the bottom plate 3, the clamp spring 8 can be ensured not to interfere with the bottom plate 3 in the clamping process of the positioning pin 10 through the clearance, the clamp spring 8 is ensured to have certain clamping force on the positioning pin 10, and the positioning pin 10 can be effectively prevented from sliding off in any posture during tool assembly.
As shown in fig. 1, a handle 6 is provided on one side of the base plate 3.
As shown in fig. 5 and 6, the process of assembling the positioning pin 10 by using the tool for assembling the cylinder head bearing cap positioning pin (hereinafter, referred to as a tool) is as follows: firstly, a positioning pin 10 is installed in a clamp spring 8 of a tool, then the tool is attached to a camshaft hole 9a through a radial positioning block 7, and an axial positioning block 5 is attached to a cylinder cover end face 9b to complete rapid positioning between the tool and a cylinder cover 9, so that the positioning pin 10 installed in the clamp spring 8 of the tool is ensured to be aligned with a positioning pin hole of the cylinder cover 9; the top surface of the mass 1 is then struck with a hammer or like tool, forcing the bottom surface of the mass 1 to press the locating pin 10 out of the circlip 8 and then into the locating pin hole of the cylinder head 9. When the positioning pin 10 is installed into the clamp spring 8 of the tool next time, the positioning pin 10 resets the pressing block 1 to the position before knocking assembly, so that the next assembly is facilitated.
As shown in figure 3, the stroke of the pressing block 1 in the tool is limited by the space formed by combining the cover plate 2 and the bottom plate 3, the depth of the positioning pin 10 entering the positioning pin hole of the cylinder cover 9 is effectively controlled, and the consistency of product assembly is ensured.
Claims (5)
1. The utility model provides a frock is used in assembly of cylinder head bearing cap locating pin which characterized in that: comprises a cover plate (2), a bottom plate (3), a clamp spring (8) and a pressing block (1);
a guiding and positioning component is arranged on the bottom surface of the bottom plate (3); the guide positioning assembly comprises a radial positioning block (7) which can be matched with a camshaft hole (9 a) on the cylinder cover (9), and an axial positioning block (5) which can be attached to a cylinder cover end face (9 b) on the cylinder cover (9);
the bottom plate (3) is provided with a first through hole (3 a), and the clamp spring (8) is in interference fit with the first through hole (3 a);
the cover plate (2) is fixedly connected with the bottom plate (3) through a bolt (4); the cover plate (2) is provided with a second through hole at the position corresponding to the first through hole (3 a); the second through hole is a stepped hole and comprises an upper small-aperture section (2 a) and a lower large-aperture section (2 b);
the pressing block (1) comprises an upper cylindrical section (1 a), a middle cylindrical section (1 b) and a lower cylindrical section (1 c) which are coaxially arranged, the upper cylindrical section (1 a) is in clearance fit with the upper small-aperture section (2 a), the middle cylindrical section (1 b) is in clearance fit with the lower large-aperture section (2 b), and the lower cylindrical section (1 c) is in clearance fit with the clamp spring (8).
2. The tool for assembling a cylinder head bearing cap positioning pin according to claim 1, characterized in that: the left end part and the right end part of the bottom plate (3) are respectively provided with a guiding and positioning component;
the left end part and the right end part of the bottom plate (3) are respectively provided with a first through hole (3 a); a clamp spring (8) is arranged in each first through hole (3 a);
the number of the cover plates (2) is two, and the second through holes in the two cover plates (2) are respectively in one-to-one correspondence with the two first through holes (3 a) in the bottom plate (3).
3. The tool for assembling the cylinder head bearing cap positioning pin according to claim 1 or 2, characterized in that: the clamp spring (8) comprises a cylindrical clamp spring body (8 a), a plurality of open grooves (8 b) are uniformly distributed in the circumferential direction of the upper end of the clamp spring body (8 a), and when the clamp spring (8) is in a free state, the outer contour size of the upper end of the clamp spring (8) is larger than that of the lower end of the clamp spring (8).
4. The tool for assembling a cylinder head bearing cap positioning pin according to claim 3, characterized in that: the upper end of the clamp spring (8) is in interference fit with the first through hole (3 a), and a gap is formed between the lower end of the clamp spring (8) and the hole wall of the first through hole (3 a).
5. The tool for assembling the cylinder head bearing cap positioning pin according to claim 1, 2 or 4, wherein: one side of the bottom plate (3) is provided with a handle (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338319.4A CN110900511B (en) | 2019-12-23 | 2019-12-23 | Tool for assembling positioning pin of bearing cap of cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911338319.4A CN110900511B (en) | 2019-12-23 | 2019-12-23 | Tool for assembling positioning pin of bearing cap of cylinder cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110900511A true CN110900511A (en) | 2020-03-24 |
| CN110900511B CN110900511B (en) | 2021-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911338319.4A Active CN110900511B (en) | 2019-12-23 | 2019-12-23 | Tool for assembling positioning pin of bearing cap of cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110900511B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015848A (en) * | 1996-06-28 | 1998-01-20 | Nec Corp | Pin inserting tool |
| CN201573157U (en) * | 2009-12-28 | 2010-09-08 | 东莞市东坑浩山实业有限公司 | Elastic screw clamping device |
| CN203918501U (en) * | 2014-06-03 | 2014-11-05 | 浙江师范大学 | A kind of aperture positioning and clamping device |
| CN105345721A (en) * | 2015-11-22 | 2016-02-24 | 天津华建天恒传动有限责任公司 | Mounting tool of inclined plane locating pin |
| CN206643584U (en) * | 2017-04-01 | 2017-11-17 | 重庆金弓集团动力有限公司 | A kind of diesel engine cylinder head alignment pin press-loading apparatus |
| CN206811852U (en) * | 2017-06-26 | 2017-12-29 | 重庆长安汽车股份有限公司 | A kind of cylinder cap alignment pin assembly tooling |
| CN207171920U (en) * | 2017-09-19 | 2018-04-03 | 快克智能装备股份有限公司 | Screw clamp means |
| CN109202422A (en) * | 2018-11-30 | 2019-01-15 | 重庆长安汽车股份有限公司 | A kind of positioning pin press-loading apparatus |
-
2019
- 2019-12-23 CN CN201911338319.4A patent/CN110900511B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1015848A (en) * | 1996-06-28 | 1998-01-20 | Nec Corp | Pin inserting tool |
| CN201573157U (en) * | 2009-12-28 | 2010-09-08 | 东莞市东坑浩山实业有限公司 | Elastic screw clamping device |
| CN203918501U (en) * | 2014-06-03 | 2014-11-05 | 浙江师范大学 | A kind of aperture positioning and clamping device |
| CN105345721A (en) * | 2015-11-22 | 2016-02-24 | 天津华建天恒传动有限责任公司 | Mounting tool of inclined plane locating pin |
| CN206643584U (en) * | 2017-04-01 | 2017-11-17 | 重庆金弓集团动力有限公司 | A kind of diesel engine cylinder head alignment pin press-loading apparatus |
| CN206811852U (en) * | 2017-06-26 | 2017-12-29 | 重庆长安汽车股份有限公司 | A kind of cylinder cap alignment pin assembly tooling |
| CN207171920U (en) * | 2017-09-19 | 2018-04-03 | 快克智能装备股份有限公司 | Screw clamp means |
| CN109202422A (en) * | 2018-11-30 | 2019-01-15 | 重庆长安汽车股份有限公司 | A kind of positioning pin press-loading apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 夏征农等: "《大辞海 机械电气卷》", 31 December 2007, 上海辞书出版社 * |
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| CN110900511B (en) | 2021-06-04 |
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