CN113211383A - Spring assembly and disassembly tools - Google Patents
Spring assembly and disassembly tools Download PDFInfo
- Publication number
- CN113211383A CN113211383A CN202110661951.3A CN202110661951A CN113211383A CN 113211383 A CN113211383 A CN 113211383A CN 202110661951 A CN202110661951 A CN 202110661951A CN 113211383 A CN113211383 A CN 113211383A
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- China
- Prior art keywords
- gear
- pawl
- spring
- sliding seat
- guide rail
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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
- B25B27/14—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention provides a spring disassembling tool, which belongs to the technical field of part disassembly, wherein the spring disassembling tool comprises two clamping jaws for clamping a spring from a spring spiral gap and a moving mechanism for driving the two clamping jaws to move relatively, the moving mechanism comprises a rack guide rail and a gear structure meshed with the rack guide rail, the two clamping jaws are respectively arranged on the rack guide rail through a sliding seat or one clamping jaw of the two clamping jaws is assembled on the rack guide rail through the sliding seat in a sliding way, the other clamping jaw is fixed, the gear structure is assembled on the sliding seat through a gear shaft in a rotating way, and the spring disassembling tool also comprises a driving mechanism for driving the gear structure to rotate and a blocking mechanism for blocking the gear structure to rotate reversely; the invention can realize the dismounting of the extension spring and the dismounting of the compression spring at the same time, has strong applicability and simple structure, and greatly improves the reliability and stability of the dismounting spring and the dismounting work efficiency.
Description
Technical Field
The invention relates to the technical field of part disassembly, in particular to a spring disassembling tool.
Background
The spring damper is used for inhibiting the vibration of the elastic element after absorbing the shock and the impact from the road surface. The damping device is widely applied to automobiles and is used for accelerating the attenuation of the vibration of a frame and an automobile body so as to improve the driving smoothness of the automobiles. When the road surface passes through the uneven road surface, although the shock-absorbing elastic element can filter the shock of the road surface, the shock-absorbing elastic element can still reciprocate, and the spring shock absorber is used for inhibiting the elastic element from jumping. When the damper is used for a period of time, the springs on the damper need to be overhauled, and the springs on the damper are large, so that the damper is difficult to disassemble and assemble; however, at present, no proper tool is available for disassembling and assembling the spring damper, a manual or bracing tool is generally adopted to store energy and stretch a certain amount of spring, and after a gasket is added in the spring, the spring is disassembled and assembled, so that the following problems exist: 1) the amount of manual energy storage stretching is often difficult to grasp, needs the master of very experienced teacher to accomplish, and the operation needs many people, wastes time and energy moreover for it is more troublesome to change. 2) After the manual energy storage is stretched for a certain amount, a gasket is added in a spring with certain energy storage, and the possibility of mechanical injury to a human body exists in the assembling and disassembling process. 3) If the amount of stretching is large, the number of required gaskets is large, and the possibility that the gaskets are not clamped tightly or fly out to hurt people is greatly increased when the number of the gaskets is large.
In order to solve the technical problem, application number is CN201921886842.6, and the chinese patent named lightweight spring assembly and disassembly tools discloses, a lightweight spring assembly and disassembly tools, including the installation pole, fixed being provided with on the installation pole is decided to grab and colludes, still the cover is equipped with on the installation pole and moves to grab and colludes, is located decide grab collude with it is used for driving to move to grab and collude along the first drive nut of installation pole axial displacement to move threaded connection on the installation pole between grabbing. The spring assembling and disassembling tool is suitable for stretching and compressing of various springs to realize assembling and disassembling of the springs, greatly improves working efficiency and saves manpower and material resources; however, the drive nut is not suitable for rotation during rotation and is inefficient.
Disclosure of Invention
In view of this, the invention provides a spring disassembling tool to solve the technical problem that the spring is time-consuming and labor-consuming in disassembling in the prior art.
In order to solve the technical problems, the invention provides a spring disassembling tool which comprises two clamping jaws used for clamping a spring from a spring spiral gap and a moving mechanism driving the two clamping jaws to move relatively, wherein the moving mechanism comprises a rack guide rail and a gear structure meshed with the rack guide rail, the two clamping jaws are arranged on the rack guide rail respectively through sliding seats which are symmetrically disassembled and assembled from left to right, or one clamping jaw of the two clamping jaws is assembled on the rack guide rail in a sliding mode through the sliding seat, the other clamping jaw is fixed, the gear structure is assembled on the sliding seat in a rotating mode through a gear shaft, and the spring disassembling tool further comprises a driving mechanism driving the gear structure to rotate and a stopping structure stopping the gear structure from rotating reversely.
Furthermore, the gear structure comprises a first gear meshed with the rack guide rail, and the first gear is fixed on the sliding seat through a first rotating shaft.
Furthermore, the gear structure further comprises a second gear which is arranged above the first gear and meshed with the first gear, and the second gear is rotationally fixed on the sliding seat through a second rotating shaft.
Further, the driving mechanism is a manual driving mechanism.
Furthermore, the manual driving mechanism comprises a wrench which is fixed on the second rotating shaft and is in running fit with the sliding seat.
Further, the stopping structure comprises a first pawl hinged on the sliding seat and a second pawl hinged on the wrench, the first pawl is provided with two first pawl mounting positions for stopping the first gear from rotating reversely or clockwise, and the second pawl is provided with two second mounting positions for driving the second gear to rotate clockwise or anticlockwise.
Furthermore, a first pawl arranged at the first pawl mounting position is matched with a first gear to rotate reversely or clockwise and lock clockwise or anticlockwise; and the second pawl corresponding to the second pawl mounting position is matched with the second gear to rotate clockwise or anticlockwise, and reversely or clockwise to enable the second pawl to be disengaged from the second gear.
Furthermore, the first pawl and the second pawl respectively comprise a pawl main body and a locking head arranged at one end of the pawl main body, the locking head is in a triangular shape with one plane and one inclined plane, and the other plane is connected with the main body, and the pawl main body can move along the radial direction of the first gear or the second gear to enable the locking head to be inserted into or separated from a tooth gap of the first gear or the second gear.
Furthermore, a torsion spring which is matched with the first pawl and/or the second pawl to rotate is arranged on the first pawl and/or the second pawl.
Furthermore, the sliding seat is internally provided with accommodating parts matched with the torsion springs, each torsion spring comprises a bent positioning part, two ends of each positioning part extend to form a first end part and a second end part of each torsion spring, and the first end part of each torsion spring is inserted into the accommodating part of the sliding seat; the second end of the torsion spring is fixed to the pawl body.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. the spring disassembling tool comprises two clamping jaws for clamping a spring from a spring spiral gap and a detachable moving mechanism for driving the two clamping jaws to move relatively, wherein the moving mechanism comprises a rack guide rail and a gear structure meshed with the rack guide rail, a stopping structure for stopping the gear structure from rotating is arranged beside the gear structure, and the tensile spring and the compression spring can be disassembled simultaneously by arranging one clamping jaw as the movable clamping jaw, so that the spring disassembling tool is high in applicability and simple in structure, and the reliability, the stability and the disassembling working efficiency of the disassembling spring are greatly improved.
The spring disassembling tool can be adjusted according to the length of the spring so as to adapt to stretching and compression of various springs; the disassembling and assembling operation of the spring can be completed by one person; the device is suitable for disassembling the manual spring in a narrow space.
2. The preferred preventing structure of the invention comprises a first pawl hinged on the sliding seat and a second pawl hinged on the wrench, wherein the first pawl is provided with two first pawl mounting positions for preventing the first gear from rotating forwards or backwards, and the second pawl is provided with two second mounting positions for driving the second gear to rotate forwards or backwards.
When the first pawl installed on the first pawl installation position is matched with the first gear to rotate anticlockwise, the first pawl is locked clockwise; and a second pawl corresponding to the second pawl mounting position is matched with the second gear to rotate clockwise, and the second pawl is disengaged from the second gear counterclockwise. This arrangement is suitable for removal of the tension spring.
A first pawl arranged on the first pawl mounting position is matched with the first gear to rotate clockwise and is locked anticlockwise; a second pawl corresponding to the second pawl mounting position is matched with the second gear to rotate anticlockwise, so that the second pawl is disengaged from the second gear clockwise; this arrangement is suitable for removal of the compression spring.
Meanwhile, if the first pawl is omitted, the wrench can rotate under the action of the first gear under the action of the compression spring; when first pawl, compression spring's pressure makes first gear have clockwise rotation's trend, and first pawl dies first gear card stall, and the spanner does not receive the pressure of the first pawl of compression spring indirectly this moment, can not take place to rotate yet.
Drawings
FIG. 1 is a top view of the spring assembly tool (disassembled tension spring) of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 in the direction A-A (with the extension spring removed);
FIG. 3 is a top view of the spring assembly/disassembly tool (with compression spring removed) of the present invention;
FIG. 4 is a cross-sectional view of FIG. 1 in the direction B-B (with the compression spring removed);
FIG. 5 is an exploded view of the spring assembly tool of the present invention shown schematically in FIG. 1;
FIG. 6 is an exploded view of the spring assembly tool of the present invention, FIG. 2;
fig. 7 is an exploded view of the spring assembly tool of the present invention, schematically illustrated in fig. 3.
1. A rack guide rail; 2. fixing the clamping jaw; 3. moving the clamping jaw; 4. a sliding seat 41, a containing part; 5. gear structure, 51. first gear, 52. first shaft, 53. second gear, 54. second shaft; 6. a blocking structure, 611, a first pawl, 621, a second pawl, 631, a pawl body, 632, a locking head, 64, a torsion spring; 7. drive mechanism, 71, wrench.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 7 of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
As shown in fig. 1-2, 5-7: a spring disassembling tool comprises a rack guide rail 1, two clamping jaws for disassembling a spring, a detachable sliding seat 4, a gear structure 5 and a stopping structure 6;
particularly, a spring assembly and disassembly tools, including being used for from two jack catchs of spring spiral clearance chucking spring and the moving mechanism who drives two jack catchs relative movement, moving mechanism includes rack guide rail 1 and the gear structure 5 with rack guide rail 1 meshing, a jack catch of two jack catchs passes through the sliding seat and slides the assembly on rack guide rail 1, another fixed jack catch 2, gear structure passes through the gear shaft and rotates the assembly on sliding seat 4, spring assembly and disassembly tools still includes drive gear structure pivoted actuating mechanism and blocks gear structure antiport's prevention structure 6. Through with wherein two jack catchs's relative movement, can realize dismantling extension spring and dismantle compression spring simultaneously, the suitability is strong, simple structure, improves the reliability, the stability of dismantling the spring greatly and the work efficiency of dismantling.
According to an embodiment of the present invention, as shown in fig. 1-2, 5-7, the gear structure 5 includes a straight first gear 51 engaged with the straight rack guide 1, and the first gear 51 is fixed to the sliding base 4 by a first rotating shaft 52. A second gear 53 meshed with the first gear 51 is arranged above the first gear 51; the second gear 53 is fixed to the sliding seat 4 by a second rotating shaft 54. A driving mechanism 7 for driving the second rotating shaft 54 to rotate on the second rotating shaft 54, wherein the driving mechanism 7 comprises a wrench 71 fixed on the second rotating shaft 54 and rotationally matched with the sliding seat 4; the other jaw is a fixed jaw 2.
The working state of the product is as follows: the blocking structure 6 comprises a first pawl 611 hinged to the sliding seat and a second pawl 621 hinged to the wrench, the first pawl 611 having two first pawl mounting positions blocking the reverse or clockwise rotation of the first gear wheel 51, the second pawl 621 having two second mounting positions driving the clockwise or counterclockwise rotation of the second gear wheel 53. The first pawl arranged on the first pawl mounting position is matched with the first gear 51 to rotate anticlockwise and lock clockwise; the second pawl 621 corresponding to the mounting position of the second pawl 621 cooperates with the second gear 53 to rotate clockwise, and counterclockwise enables the second pawl 621 to disengage from the second gear 53; two gears and a pawl 63 are arranged, and under the action of an extension spring, a wrench 71 can rotate under the action of a second gear 53; when the first pawl is arranged, the pressure of the extension spring enables the first gear 51 to have a tendency of clockwise rotation, the first pawl blocks and stops the rotation of the first gear 51, and at the moment, the wrench 71 is not indirectly subjected to the pressure of the first pawl of the extension spring and can not rotate, and the state of the extended spring can not be changed; the extension spring is disassembled.
The working principle of this state is as follows: when the tension spring is used, when the tension spring is detached, the wrench 71 is pulled anticlockwise, the first pawl is driven by the wrench 71, the first pawl can pass through the teeth of the second gear 53, the end part of the pawl can be clamped in the tooth grooves of the gears, then the wrench 71 is pulled clockwise by the wrench 71, the first pawl is driven by the wrench 71, the first pawl 611 can pull the second gear 53 to rotate clockwise, the second gear 53 is meshed with the first gear 51, the first gear 51 rotates anticlockwise, at the moment, the second pawl 621 can cross the teeth of the first gear 51 and is clamped in the tooth grooves, due to the fact that the rack is meshed with the first gear 51, the movable jaw moves leftwards under the driving of the first gear 51, and the distance between the fixed jaw 2 and the movable jaw is enlarged. When the wrench 71 stops being wrenched, the movable jaw is pressed by the compression spring, the movable jaw tends to move rightwards, at this time, the first gear 51 tends to rotate clockwise, due to the action of the second pawl 621, the first gear 51 is blocked by the second pawl 621, the first gear 51 stops rotating, and the movable jaw is locked with the fixed jaw 2 at a distance.
And a second working state: taking down the sliding seat 4 from the rack guide rail 1, and reversely installing the sliding seat, wherein at the moment, a first pawl installed at a first pawl installation position is matched with the first gear 51 to rotate clockwise and lock anticlockwise; the second pawl 621 corresponding to the mounting position of the second pawl 621 cooperates with the second gear 53 to rotate counterclockwise, so that the second pawl 621 disengages from the second gear 53 clockwise. The disassembly of the compression spring can be realized.
The working principle of this state is as follows: when the compression spring is disassembled, the wrench 71 is wrenched clockwise, the first pawl is driven by the wrench 71, the first pawl crosses the teeth of the second gear 53, the pawl is clamped into the tooth grooves of the second gear 53, then the wrench 71 is wrenched counterclockwise, the first pawl stirs the second gear 53 to rotate counterclockwise, because the second gear 53 is meshed with the first gear 51, the first gear 51 rotates clockwise, at the moment, the second pawl 621 crosses the teeth of the first gear 51, the pawl is clamped into the tooth grooves of the first gear 51, when the first gear 51 rotates clockwise, the first gear 51 moves rightwards on the rack, and the distance between the movable jaw and the fixed jaw 2 is reduced. When the wrench 71 stops being pulled, the movable jaw is pushed leftwards by the compression spring, the movable jaw tends to move leftwards, at the moment, the first gear 51 tends to rotate anticlockwise, the first gear 51 is clamped by the second pawl 621 due to the action of the second pawl 621, the first gear 51 stops rotating, and the movable jaw is locked at a distance from the fixed jaw 2.
Example 2: the utility model provides a spring assembly and disassembly tools, including being used for from two jack catchs of spring spiral clearance department chucking spring and the moving mechanism who drives two jack catchs relative movement, moving mechanism includes rack guide rail 1 and the gear structure 5 with rack guide rail 1 meshing, a jack catch of two jack catchs passes through sliding seat sliding assembly on rack guide rail 1, another fixed jack catch 2, gear structure 5 passes through the gear shaft and rotates the assembly on sliding seat 4, spring assembly and disassembly tools still includes drive gear structure pivoted actuating mechanism, this actuating mechanism is manual drive mechanism, manual drive mechanism is including being fixed in second pivot 54 and sliding seat normal running fit's spanner 71. Can realize dismantling extension spring and dismantle compression spring simultaneously, simple structure through setting up spanner 71, can be applicable to and dismantle the spring in the narrow and small space in the car.
Example 3: in one embodiment of the present invention, as shown in fig. 5 to 7, each of the first and second pawls includes a pawl body 631 and a locking head provided at one end of the pawl body 631, the locking head having a triangular shape with one flat surface and one inclined surface and one surface connected to the body, and the pawl body is movable in a radial direction of the first gear 51 or the second gear 53 to insert or separate the locking head into or from a backlash of the first gear 51 or the second gear 53. Torsion springs 64 which are matched with the first pawl and the second pawl to rotate are arranged on the first pawl 611 and the second pawl; the slide seat 4 is internally provided with a containing part 41 matched with each torsion spring 64, each torsion spring 64 comprises a bending positioning part, two ends of each positioning part extend to form a first end part and a second end part of each torsion spring 64, and the first end part of each torsion spring 64 is inserted into the containing part 41 of the slide seat; the second end of the torsion spring 64 is fixed to the pawl body 631.
In other embodiments, the stopping structure 6 may also be a stopping spring disposed in the sliding seat, and one end of the stopping spring is inserted into the teeth on the gear.
In other embodiments, the first gear 51 and the second gear 53 in the gear structure may also be helical teeth.
In other embodiments, the driving mechanism can realize the forward movement of the moving mechanism by the reciprocating rotation of a manual wrench, and a deflector rod for controlling the reciprocating motion of the wrench can be arranged.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a spring assembly and disassembly tools, includes two jack catchs that are used for following spring spiral clearance chucking spring and drives two jack catch relative movement's moving mechanism, its characterized in that: the moving mechanism comprises a rack guide rail and a gear structure meshed with the rack guide rail, two clamping jaws are arranged on the rack guide rail through sliding seats of bilateral symmetry dismounting or one clamping jaw of the two clamping jaws passes through the sliding seat in sliding assembly on the rack guide rail and the other fixed clamping jaw, the gear structure is rotatably assembled on the sliding seat through a gear shaft, and the spring dismounting tool further comprises a driving mechanism for driving the gear structure to rotate and a stopping structure for stopping the gear structure to rotate.
2. The spring assembly/disassembly tool of claim 1, wherein: the gear structure comprises a first gear meshed with the rack guide rail, and the first gear is rotationally fixed on the sliding seat through a first rotating shaft.
3. The spring assembly/disassembly tool of claim 2, wherein: the gear structure further comprises a second gear which is arranged above the first gear and meshed with the first gear, and the second gear is rotationally fixed on the sliding seat through a second rotating shaft.
4. The spring assembly/disassembly tool of claim 3, wherein: the driving mechanism is a manual driving mechanism.
5. The spring assembly/disassembly tool of claim 4, wherein: the manual driving mechanism comprises a spanner which is fixed on the second rotating shaft and is in running fit with the sliding seat.
6. The spring assembly/disassembly tool of claim 3, wherein: the stopping structure comprises a first pawl hinged on the sliding seat and a second pawl hinged on the wrench, the first pawl is provided with two first pawl mounting positions for stopping the first gear from rotating reversely or clockwise, and the second pawl is provided with two second mounting positions for driving the second gear to rotate clockwise or anticlockwise.
7. The spring assembly/disassembly tool of claim 6, wherein: the first pawl mounted on the first pawl mounting position is matched with the first gear to rotate reversely or clockwise and lock clockwise or anticlockwise; and the second pawl corresponding to the second pawl mounting position is matched with the second gear to rotate clockwise or anticlockwise, and reversely or clockwise to enable the second pawl to be disengaged from the second gear.
8. The spring loading/unloading tool according to any one of claims 6 and 7, wherein: the first pawl and the second pawl respectively comprise a pawl main body and a locking head arranged at one end of the pawl main body, the locking head is in a triangular shape with one plane and one inclined plane and the other plane connected with the main body, and the pawl main body can move along the radial direction of the first gear or the second gear to enable the locking head to be inserted into or separated from a tooth gap of the first gear or the second gear.
9. The spring loading/unloading tool according to any one of claims 6 and 7, wherein: and a torsion spring which is matched with the first pawl and/or the second pawl to rotate is arranged on the first pawl and/or the second pawl.
10. The spring assembly/disassembly tool of claim 9, wherein: the sliding seat is internally provided with accommodating parts matched with the torsion springs, each torsion spring comprises a bent positioning part, two ends of each positioning part extend to form a first end part and a second end part of each torsion spring, and the first end part of each torsion spring is inserted into the accommodating part of the sliding seat; the second end of the torsion spring is fixed to the pawl body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110661951.3A CN113211383A (en) | 2021-06-15 | 2021-06-15 | Spring assembly and disassembly tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110661951.3A CN113211383A (en) | 2021-06-15 | 2021-06-15 | Spring assembly and disassembly tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113211383A true CN113211383A (en) | 2021-08-06 |
Family
ID=77080310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110661951.3A Pending CN113211383A (en) | 2021-06-15 | 2021-06-15 | Spring assembly and disassembly tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113211383A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799049A (en) * | 2021-10-26 | 2021-12-17 | 广西电网有限责任公司柳州供电局 | Spring dismounting tool for bolt mechanism of on-load switch tap changer and using method thereof |
| CN114393549A (en) * | 2022-02-08 | 2022-04-26 | 奇瑞汽车股份有限公司 | Disassembling tool for sliding column assembly |
| CN115070698A (en) * | 2022-05-12 | 2022-09-20 | 安徽悦众车身装备有限公司 | Rear axle spring pressure equipment tool equipment |
-
2021
- 2021-06-15 CN CN202110661951.3A patent/CN113211383A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113799049A (en) * | 2021-10-26 | 2021-12-17 | 广西电网有限责任公司柳州供电局 | Spring dismounting tool for bolt mechanism of on-load switch tap changer and using method thereof |
| CN113799049B (en) * | 2021-10-26 | 2023-09-01 | 广西电网有限责任公司柳州供电局 | Spring dismounting tool for on-load switch tapping switch bolt mechanism and use method thereof |
| CN114393549A (en) * | 2022-02-08 | 2022-04-26 | 奇瑞汽车股份有限公司 | Disassembling tool for sliding column assembly |
| CN115070698A (en) * | 2022-05-12 | 2022-09-20 | 安徽悦众车身装备有限公司 | Rear axle spring pressure equipment tool equipment |
| CN115070698B (en) * | 2022-05-12 | 2023-12-08 | 安徽悦众车身装备有限公司 | Rear axle spring press mounting tool device |
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