CN109333457B - Spring mounting tool - Google Patents
Spring mounting tool Download PDFInfo
- Publication number
- CN109333457B CN109333457B CN201811451605.7A CN201811451605A CN109333457B CN 109333457 B CN109333457 B CN 109333457B CN 201811451605 A CN201811451605 A CN 201811451605A CN 109333457 B CN109333457 B CN 109333457B
- Authority
- CN
- China
- Prior art keywords
- spring
- outer cylinder
- ejector rod
- lock nut
- ejector
- 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.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
Abstract
The invention discloses a spring mounting tool, which comprises a top block (2), an outer cylinder (3), an ejector rod (4) and a press cap (7), and is characterized in that: a plurality of ejector blocks (2) are arranged in clamping grooves on an outer cylinder (3) and can slide up and down along the radial direction and rotate in a small range, a ferrule (1) is hooped outside the ejector blocks (2), a lock nut (5) is arranged at the tail of the outer cylinder (3), an ejector rod (4) is movably arranged inside the outer cylinder (3) and penetrates through the lock nut (5), a pressing cap (7) is arranged at the tail of the ejector rod (4), a return spring (6) is arranged between the pressing cap (7) and the lock nut (5), and the return spring (6) is sleeved on the ejector rod (4). The spring mounting device is simple in structure, good in effect, convenient to operate, stable and reliable, and suitable for popularization and use of spring mounting.
Description
Technical Field
The invention belongs to the technical field of spring auxiliary tools, and particularly relates to a spring installation tool.
Background
Spring mounting is quite common during production. Part of the parts (the end face of the head is provided with a ring groove, a blind hole and a longitudinal groove) needs to be provided with a spring in the ring groove during use (see figures 3 to 7). Because the inner diameter of the spring to be installed is smaller than the outer diameter of the groove bottom of the part annular groove, the inner hole of the spring is required to expand and become larger in the elastic deformation range in the installation process, the outer circle of the annular groove shoulder at the end face of the part reaches the position of the annular groove, then the spring is retracted to be installed in the annular groove, and the inner hole of the spring is tightly contacted with the outer circle of the groove bottom of the part annular groove under the action of spring elastic force.
When the inner hole of the spring is expanded, the elastic force of the spring needs to be overcome, and the shape of the spring can show that if the spring is installed by means of a tool, the force application point of the tool needs to be selected in the inner hole of the spring because the outer circle of the spring has no place to apply force. The spring is installed without interference of the tool with the part to avoid damage to the part. There is currently no suitable spring mounting tool that meets the structural and functional requirements set forth above.
Disclosure of Invention
The invention aims to overcome the defects and provide the spring mounting tool which has the advantages of simple structure, good effect, convenient operation, stability and reliability.
The aim and the main technical problems are achieved by adopting the following technical scheme:
the invention relates to a spring mounting tool, which comprises a top block, an outer cylinder, a top rod and a pressing cap, wherein: the ejector blocks are arranged in clamping grooves on the outer cylinder and can slide up and down along the radial direction and rotate in a small range, the outside of each ejector block is hooped with a ferrule, the tail part of the outer cylinder is provided with a lock nut, the ejector rod is movably arranged inside the outer cylinder and penetrates through the lock nut, the tail part of the ejector rod is provided with a pressing cap, a return spring is arranged between the pressing cap and the lock nut, and the return spring is sleeved on the ejector rod.
The spring installation tool described above, wherein: the ejector rod is limited by the step surface and the inner side end surface of the lock nut.
The spring installation tool described above, wherein: the ejector rod stage is matched with an inner conical surface arranged in the outer cylinder through an outer conical surface.
The spring installation tool described above, wherein: the head of the ejector rod is matched with the conical surface arranged on the ejector block through the outer conical surface.
The spring installation tool described above, wherein: the ferrule is a rubber ring.
The spring installation tool described above, wherein: the front part of the ferrule is provided with a step mounting part.
Compared with the prior art, the invention has obvious advantages and beneficial effects. According to the technical scheme, in the spring mounting tool, the plurality of jacking blocks are mounted in the clamping grooves on the outer cylinder and can slide up and down along the radial direction, the jacking blocks are used for realizing the purpose of expanding the spring to be mounted for mounting, the locking nuts are mounted at the tail part of the outer cylinder, the outer cylinder is used for positioning between the tool and the part, and the clamping grooves on the jacking blocks limit the movement mode and direction of the jacking blocks; the ejector rod is movably arranged in the outer cylinder and penetrates through the lock nut, the tail part of the ejector rod is provided with a pressing cap, and the axial force applied by the outside is transmitted by the ejector rod to be converted into the outward radial force to act on the ejector block; the ejector rod is limited by the step surface and the inner side end surface of the lock nut, so that the movement travel of the ejector rod is limited, the ejector rod is prevented from falling out of the outer cylinder, and the function of supporting the return spring is achieved; a return spring is arranged between the pressing cap and the locking nut, the return spring is sleeved on the ejector rod, and the return spring has the functions of enabling the ejector rod to return to an initial position and enabling the propped block to retract under the combined action of the ejector rod and the rubber ring; the front part of the ferrule is provided with a step installation part, so that the spring to be installed can be conveniently installed; the outside of the top block is hooped with a ferrule, so that the top block is not separated from the outer cylinder. In a word, the invention has simple structure, good effect, convenient operation, stability and reliability, and is suitable for popularization and use of spring installation.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic structural view of a part;
FIG. 4 is a right side view of FIG. 3;
FIG. 5 is a schematic view of the structure after the spring is installed;
FIG. 6 is a schematic view of a structure in which springs are to be installed;
FIG. 7 is a left side view of FIG. 6;
fig. 8 is a state diagram of the use of the present invention.
The marks in the figure are as follows:
1. a ferrule; 2. a top block; 3. an outer cylinder; 4. a push rod; 5. a lock nut; 6. a return spring; 7. pressing the cap; 8. a part; 9. a ring groove; 10. a blind hole; 11. a spring to be installed; 12. a longitudinal slot.
Detailed Description
The following detailed description of the embodiments, structure, features and functions of the spring mounting tool according to the present invention is provided with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 2, the spring mounting tool of the present invention comprises a top block 2, an outer cylinder 3, a top rod 4, a press cap 7, wherein: the plurality of jacking blocks 2 are arranged in clamping grooves on the outer cylinder 3 and can slide up and down along the radial direction and rotate in a small range, the outside of each jacking block 2 is hooped with a ferrule 1, the tail part of the outer cylinder 3 is provided with a lock nut 5, the ejector rod 4 is movably arranged inside the outer cylinder 3 and penetrates through the lock nut 5, the tail part of the ejector rod 4 is provided with a pressing cap 7, a return spring 6 is arranged between the pressing cap 7 and the lock nut 5, and the return spring 6 is sleeved on the ejector rod 4. The ejector rod 4 is limited with the inner side end surface of the lock nut 5 through the step surface. The stage of the ejector rod 4 is matched with an inner conical surface arranged in the outer cylinder 3 through an outer conical surface. The head of the ejector rod 4 is matched with the conical surface arranged on the ejector block 2 through the outer conical surface. The ferrule 1 is a rubber ring. The front part of the ferrule 1 is provided with a step mounting part.
When the spring mounting device is used, referring to fig. 8, a spring 11 to be mounted is mounted on a step mounting part at the front part of a ferrule 1, a cylinder at the leftmost end of an outer cylinder 3 is inserted into a blind hole 10 on the right end face of a part 8, and meanwhile, the left ends of three jacking blocks 2 extend into three longitudinal grooves 12 which are formed in an annular groove 9 and are axially spaced by 120 degrees, so that the left end face of the spring 11 to be mounted is guaranteed to be attached to the right end face of the part 8. The pressing cap 7 is applied with left axial force to push the ejector rod 4 to move left, an outward radial component force is generated through the contact inclined plane of the ejector rod 4 and the ejector block 2 to push the ejector block 2 to slide radially outwards, and the diameter of an inner hole of the spring 11 to be installed is increased until the diameter is larger than the outer diameter of a groove shoulder of the ring groove 9 on the right end face of the part 8; at the same time, under the combined action of the radial component force F and the spring component force G, the top block 2 tilts leftwards, so that the spring 11 to be installed is forced to move leftwards to reach the position above the annular groove 9 of the part 8, at the moment, the axial force externally applied to the pressing cap 7 is stopped, the top rod 4 moves rightwards under the pushing of the resilience force of the compressed return spring 6, the top block 2 loses support, the top block 2 retracts under the resilience force of the spring 11 to be installed and the ferrule 1, and the spring 11 to be installed enters the annular groove 9, and the installation is completed. Then, the compressed return spring 6 continuously rebounds to push the ejector rod 4 to move rightwards until the right end face of the step contacts with the left end face of the step in the inner hole of the lock nut 5, and the ejector rod 4 is limited to move rightwards. Simultaneously, the propping blocks 2 which are propped open continuously slide centripetally under the action of the elasticity of the ferrule 1 until the propping blocks are contacted with each other, and the tool is restored to the state before working. The spring mounting device is simple in structure, good in effect, convenient to operate, stable and reliable, and suitable for popularization and use of spring mounting.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any simple modification, equivalent variation and variation of the above embodiment according to the technical matter of the present invention still fall within the scope of the technical scheme of the present invention.
Claims (3)
1. The utility model provides a spring mounting tool, includes kicking block (2), urceolus (3), ejector pin (4), presses cap (7), its characterized in that: the plurality of jacking blocks (2) are arranged in clamping grooves on the outer cylinder (3) and can slide up and down along the radial direction and rotate in a small range, a ferrule (1) is hooped outside the jacking blocks (2), a lock nut (5) is arranged at the tail part of the outer cylinder (3), a jacking rod (4) is movably arranged inside the outer cylinder (3) and penetrates through the lock nut (5), a pressing cap (7) is arranged at the tail part of the jacking rod (4), a return spring (6) is arranged between the pressing cap (7) and the lock nut (5), and the return spring (6) is sleeved on the jacking rod (4); the ejector rod (4) is limited with the inner side end surface of the lock nut (5) through a step surface; the step section of the ejector rod (4) is matched with an inner conical surface arranged in the outer cylinder (3) through an outer conical surface; the head of the ejector rod (4) is matched with the conical surface arranged on the ejector block (2) through the outer conical surface.
2. The spring installation tool of claim 1, wherein: the ferrule (1) is a rubber ring.
3. The spring installation tool of claim 1, wherein: the front part of the ferrule (1) is provided with a step mounting part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451605.7A CN109333457B (en) | 2018-11-30 | 2018-11-30 | Spring mounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451605.7A CN109333457B (en) | 2018-11-30 | 2018-11-30 | Spring mounting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109333457A CN109333457A (en) | 2019-02-15 |
| CN109333457B true CN109333457B (en) | 2024-04-02 |
Family
ID=65319616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811451605.7A Active CN109333457B (en) | 2018-11-30 | 2018-11-30 | Spring mounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109333457B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111168630B (en) * | 2020-02-19 | 2021-07-06 | 陈晨曦 | Adjustable volute spiral spring mounting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1387401A (en) * | 1970-12-14 | 1975-03-19 | Adbar Patent Co Ltd | Insert installation tool |
| CN203579564U (en) * | 2013-10-29 | 2014-05-07 | 奇瑞汽车股份有限公司 | Spring mounting tool |
| CN105186261A (en) * | 2015-10-13 | 2015-12-23 | 资阳南车电气有限公司 | Module integration type needle withdrawing device for electrical connector |
| CN105856162A (en) * | 2016-06-21 | 2016-08-17 | 中航成飞民用飞机有限责任公司 | Compression spring mounting tool |
| CN106863214A (en) * | 2015-12-11 | 2017-06-20 | 中国航空工业集团公司北京航空制造工程研究所 | The installation tool and installation method of a kind of bolt spring block |
| CN108747978A (en) * | 2018-06-30 | 2018-11-06 | 中国航空工业标准件制造有限责任公司 | Bolt assembly tail end spring discharges device |
| CN209954607U (en) * | 2018-11-30 | 2020-01-17 | 中国航空工业标准件制造有限责任公司 | Spring mounting tool |
-
2018
- 2018-11-30 CN CN201811451605.7A patent/CN109333457B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1387401A (en) * | 1970-12-14 | 1975-03-19 | Adbar Patent Co Ltd | Insert installation tool |
| CN203579564U (en) * | 2013-10-29 | 2014-05-07 | 奇瑞汽车股份有限公司 | Spring mounting tool |
| CN105186261A (en) * | 2015-10-13 | 2015-12-23 | 资阳南车电气有限公司 | Module integration type needle withdrawing device for electrical connector |
| CN106863214A (en) * | 2015-12-11 | 2017-06-20 | 中国航空工业集团公司北京航空制造工程研究所 | The installation tool and installation method of a kind of bolt spring block |
| CN105856162A (en) * | 2016-06-21 | 2016-08-17 | 中航成飞民用飞机有限责任公司 | Compression spring mounting tool |
| CN108747978A (en) * | 2018-06-30 | 2018-11-06 | 中国航空工业标准件制造有限责任公司 | Bolt assembly tail end spring discharges device |
| CN209954607U (en) * | 2018-11-30 | 2020-01-17 | 中国航空工业标准件制造有限责任公司 | Spring mounting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109333457A (en) | 2019-02-15 |
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