CN220348307U - Center pin bush press-fitting equipment - Google Patents
Center pin bush press-fitting equipment Download PDFInfo
- Publication number
- CN220348307U CN220348307U CN202322368579.4U CN202322368579U CN220348307U CN 220348307 U CN220348307 U CN 220348307U CN 202322368579 U CN202322368579 U CN 202322368579U CN 220348307 U CN220348307 U CN 220348307U
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- lifting shaft
- center pin
- roller
- press
- locking
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- 241001397809 Hakea leucoptera Species 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 16
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- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to the field of center pin bush press fitting, and discloses center pin bush press fitting equipment which comprises a supporting seat, wherein an annular base is arranged at the center of the top surface of the supporting seat, a lifting shaft is arranged in the annular base, a positioning seat is arranged at the top of the lifting shaft, and a positioning block and a clamp are also arranged on the top surface of a rectangular frame; the elastic driving device is arranged at the bottom of the top surface of the supporting seat and is connected with the lifting shaft, so that the lifting shaft can automatically reset, and the locking device is arranged below the elastic driving device and is used for locking the lifting shaft.
Description
Technical Field
The utility model relates to the field of center pin bush press fitting, in particular to center pin bush press fitting equipment.
Background
In the process of pressing the center pin bush of the urban rail vehicle, when the center pin bush is required to be assembled with the traction beam, the matching phase of the center pin bush and the traction beam is required to be ensured, as shown in fig. 1; the prior art method comprises the following steps: and respectively scribing a press line on the traction beam and the center pin bush, putting the center pin bush in the traction Liang Nakong, aligning the two lines, putting the gland on the center pin bush, operating a press machine for press fitting, and detecting whether the assembly phase of the center pin bush meets the requirement or not by using a three-coordinate measuring machine after press fitting. If the angle is out of tolerance, the angle is required to be judged, if the alignment condition of the press line is good, the angle is out of tolerance due to the fact that errors exist in scribing, re-scribing is required after withdrawal, and if the alignment condition of the press line is out of tolerance due to the fact that errors exist in the alignment condition of the press line, re-scribing is not required, and re-press mounting is required after withdrawal.
The method can meet the press fitting of the center pin bush, but has the following two defects:
1. the scribing detection platform is required, the operation is complex, the skill level requirement on operators is high, and the efficiency is low.
2. In the press-fitting process, under the action of lubricating grease, the traction beam component and the center pin sleeve are in a relatively free sliding state, an included angle can exist between two press-fitting lines after the press-fitting is finished, a certain reject ratio exists, and 100% of press-fitting can not be guaranteed to be qualified.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model aims to provide the center pin bush press-fitting equipment which can be applied to the center pin bush press-fitting process of urban rail vehicles and process equipment used in the process of assembling the center pin bush and the traction beam. The utility model solves the problem of low efficiency in the assembly of the center pin bush and the traction beam by using the ball spline shaft guiding method; the utility model can save labor cost; the utility model can improve the working efficiency, the qualification rate and the like.
In order to achieve the above object, the present utility model is realized by the following technical scheme:
in a first aspect, an embodiment of the present utility model provides a center pin bush press-fitting apparatus, including a supporting seat, an annular base disposed at a center position of a top surface of the supporting seat, a lifting shaft disposed in the annular base, a positioning seat disposed at a top of the lifting shaft, and a positioning block and a fixture disposed at a top surface of a rectangular frame; an elastic driving device is arranged at the bottom of the top surface of the supporting seat and connected with the lifting shaft, so that the lifting shaft can be automatically reset; and a locking device is arranged below the elastic driving device and is used for locking the lifting shaft.
As a further technical scheme, the lifting shaft and the annular base are coaxially arranged.
As a further technical scheme, a connecting pin connected with the elastic driving device and a pin hole matched with the locking device are arranged on the lifting shaft.
As a further technical scheme, the lifting shaft is a ball spline shaft.
As a further technical scheme, the elastic driving device comprises a spring, a first roller, a second roller and a steel wire rope which are horizontally arranged, wherein the axis of the first roller is vertical to the axis of the second roller; one end of the spring is fixed at the bottom of the top surface of the supporting seat, the other end of the spring is connected with the steel wire rope, and when the steel wire rope horizontally bypasses the first roller, the steel wire rope downwardly bypasses the second roller and then is connected with the connecting pin on the lifting shaft.
As a further technical scheme, the first roller is arranged at a position close to the side beam of the supporting seat, and the second roller is fixed at a position close to the lifting shaft.
As a further technical scheme, the locking device comprises a movable locking piece, the locking piece is a bolt inserted on the supporting seat, one end of the bolt is used for being inserted in the lifting shaft, the other end of the bolt is connected with a connecting ring, the connecting ring is connected with the locking driving device through a steel wire rope, and the bolt can be driven to move back and forth in the horizontal direction through the locking driving device.
As a further technical scheme, the positioning block is a rectangular block which is fixed on the top surface of the rectangular frame.
As a further technical scheme, the clamp is a manual clamp, and the manual clamp is matched with the positioning block to fix the traction Liang Qianyin pull rod.
As a further technical scheme, a positioning block matched with the lower groove of the center pin bush is arranged on the positioning seat.
The beneficial effects of the embodiment of the utility model are as follows:
the utility model adopts the lifting shaft as a guide, uses the positioning seat for positioning, and is matched with the locking device and the elastic driving device; the press fitting process is qualified without marking interfaces, the press fitting efficiency is improved, the press fitting qualification rate is ensured, and the requirements of the press fitting process on the skill level of equipment and operators are reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
FIG. 1 is a schematic illustration of a prior art center pin bushing press-fit principle;
FIG. 2 is a schematic three-dimensional structure of the present utility model;
FIG. 3 is a schematic view of the bottom structure of the utility model after being tipped in use;
FIG. 4 is a schematic illustration of the present utility model in use;
FIG. 5 is a schematic illustration of the present utility model in use;
FIG. 6 is a schematic view of the elastic drive device of the present utility model;
FIG. 7 is a schematic view of a locking device of the present utility model;
FIG. 8 is a schematic view of a lock-up drive of the present utility model;
FIG. 9 is a schematic view of a clamp of the present utility model;
in the figure: the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustrations are used for illustration only.
1 a supporting seat, 2 an annular base, 3 a lifting shaft, 4 a positioning seat, 5 a positioning block, 6 a clamp, 7 a locking device and 8 an elastic driving device; a traction beam 9 and a center pin bush 10;
3-1 connecting pins, 3-2 pin holes;
7-1 locking parts, 7-2 connecting rings, 7-3 steel wire ropes and 7-4 locking driving devices;
8-1 spring, 8-2 first gyro wheel, 8-3 second gyro wheel, 8-4 wire rope.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular forms also are intended to include the plural forms unless the present utility model clearly dictates otherwise, and furthermore, it should be understood that when the terms "comprise" and/or "include" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "upper", "lower", "left" and "right" in the present utility model, if they mean only the directions of upper, lower, left and right in correspondence with the drawings themselves, are not limiting in structure, but merely serve to facilitate description of the present utility model and simplify description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
As described in the background art, the present utility model provides a center pin bush press-fitting device for solving the above technical problems.
In a typical embodiment of the utility model, as shown in fig. 2 and 3, the utility model discloses a center pin sleeve press-fitting device, which comprises a supporting seat 1, wherein the supporting seat 1 is a three-dimensional rectangular frame, an annular base 2 is arranged at the center of the top surface of the rectangular frame, a lifting shaft 3 is arranged in the annular base 2, a positioning seat 4 is arranged at the top of the lifting shaft 3, and a positioning block 5 and a clamp 6 are also arranged on the top surface of the rectangular frame; the locking device 7 is arranged below the top surface of the supporting seat 1, the elastic driving device 8 is arranged at the bottom of the top surface of the supporting seat 1, and the elastic driving device 8 can enable the lifting shaft 3 to automatically reset.
Further, the lifting shaft 3 in the present embodiment is disposed coaxially with the annular base 2; preferably, the lifting shaft 3 can be a ball spline shaft, lifting is free from clamping stagnation, certain damping is required during lifting, and the lifting speed is not too high.
A connecting pin 3-1 connected with an elastic driving device 8 is arranged at the bottom of the lifting shaft 3, the connecting pin 3-1 is fixed, and a pin hole 3-2 matched with a locking device 7 is arranged at the bottom of the lifting shaft, and the pin hole 3-2 can be positioned above or below the connecting pin 3-1; the connecting pin 3-1 can realize the reset of the lifting shaft under the action of the elastic driving device 8; and the axial direction of the pin hole 3-2 is perpendicular to the axial direction of the lifting shaft 3.
Further, a straight line is drawn at the center line on the top surface of the support base 1, which is convenient for dimension measurement.
Further, as shown in fig. 6, the elastic driving device 8 in this embodiment includes a horizontally arranged spring 8-1, a first roller 8-2, a second roller 8-3, and a wire rope 8-4, where the axis of the first roller 8-2 is perpendicular to the axis of the second roller 8-3, so as to achieve the redirection winding of the wire rope; the spring 8-1 is horizontally arranged, one end of the spring 8-1 is fixed on the left beam of the supporting seat 1 or a fixed seat arranged close to the left beam, the other end of the spring is connected with the steel wire rope 8-4, when the steel wire rope 8-4 horizontally bypasses the first roller 8-2, the spring downwardly bypasses the second roller 8-3 and then is connected with the connecting pin 3-1 inserted on the lifting shaft 3, wherein the first roller 8-2 is arranged at a position close to the right beam of the supporting seat 1, the second roller 8-3 is fixed on the bottom surface of the top of the supporting seat 1, the steel wire rope 8-4 is controlled to move through the expansion of the spring 8-1, the lifting shaft 3 is reset through the steel wire rope 8-4, the lifting shaft 3 moves downwards under the action of external force, the tension of the spring 8-1 is larger, and when the external force at the top of the lifting shaft 3 is withdrawn, the spring pulls the connecting pin 3-1 to move upwards, and the lifting shaft 3 moves upwards along with the lifting shaft 3 due to the fact that the connecting pin 3-1 is fixed on the lifting shaft 3.
Further, as shown in fig. 7, the locking device 7 includes a movable locking piece 7-1, the locking piece 7-1 is a plug inserted into the supporting seat 1, one end of the plug is used for being inserted into the lifting shaft 3, the other end is connected with a connecting ring 7-2, the connecting ring 7-2 is connected with the locking driving device 7-4 through a steel wire rope 7-3, and the plug 3 can be driven to move back and forth in the horizontal direction through the locking driving device 7-4; when the lifting shaft 3 is pressed below the supporting seat 1, the lifting shaft 3 can be automatically inserted into the lifting shaft 3 through the pin shaft 3, locking of the lifting shaft 3 is achieved, after the traction beam assembly completed by press mounting is taken down, the locking can be removed by pulling the handle of the locking driving device 7-4, and the lifting shaft 3 can automatically rise under the action of the spring of the reset elastic driving device 8, so that reset is achieved.
Further, referring to fig. 8, the locking driving device 7 is shown, the driving rod thereon can be driven to move in the horizontal direction by operating the handle, and further the movement of the locking member 7-1 is controlled by the wire rope.
Further, the positioning block 5 is a rectangular block, and is fixed on the top surface of the rectangular frame.
Further, the clamp 6 is a manual clamp, and the clamp 6 is matched with the rectangular block to fix the traction Liang Qianyin pull rod; the specific structure of the manual clamp is shown in fig. 9; compression may be achieved by depressing the handle of fig. 9, and release may be achieved by lifting the handle of fig. 5.
As shown in fig. 3 and 4, when the press fitting is specifically performed, the press fitting tool of the center pin bush 10 is placed on the working platform of the hydraulic machine, the traction beam 9 is placed on the press fitting tool of the center pin bush 10, the lower hole of the traction beam 9 is placed on the annular base 2 on the top surface of the rectangular frame, the external processing surface of the pull rod of one side traction Liang Qianyin is tightly attached to the positioning block 5, and the clamping is performed by using the clamp 6, so that the positioning of the traction beam 9 is completed. The center pin bush 10 is placed in an inner hole of the traction beam 9, a lower groove of the center pin bush 10 is aligned with a positioning seat 4 at the top of the lifting device for installation, a pressing plate is placed on the center pin bush 10, a hydraulic press is started for press fitting, and therefore the center pin bush 10 can be pressed in place and the assembly phase can be guaranteed; in the press fitting process, the lifting shaft 3 descends along with the center pin sleeve 10, after the lifting shaft 3 descends in place, the lifting shaft 3 can be automatically locked by the locking device 7, the traction beam 9 formed by the press fitting is removed, the locking device 7 is canceled, and the lifting shaft can automatically ascend under the action of the elastic driving device 8, as shown in fig. 4 and 5, namely, the press fitting is completed.
Furthermore, the supporting seat is formed by welding steel pipes, the welding is required to be firm, no cold joint is required to be leaked, the welded joint is polished to be smooth after welding, the transition is smooth, and the whole is firm and reliable.
Further, the top plate at the top of the supporting seat is subjected to comprehensive polishing and rust removal, and then is subjected to primer and finish paint spraying, wherein the overall thickness is not less than 120 mu m.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The center pin bush press-fitting device is characterized by comprising a supporting seat, wherein an annular base is arranged at the center of the top surface of the supporting seat, a lifting shaft is arranged in the annular base, a positioning seat is arranged at the top of the lifting shaft, and a positioning block and a clamp are further arranged on the top surface of a rectangular frame; an elastic driving device is arranged at the bottom of the top surface of the supporting seat and connected with the lifting shaft, so that the lifting shaft can be automatically reset; and a locking device is arranged below the elastic driving device and is used for locking the lifting shaft.
2. The center pin housing press-fit equipment of claim 1, wherein the lifting shaft is coaxially disposed with the annular base.
3. The center pin housing press-fitting apparatus according to claim 2, wherein a connecting pin connected to the elastic driving means and a pin hole engaged with the locking means are provided on the lifting shaft.
4. A centre pin bush press-fitting apparatus according to any one of claims 2 or 3, wherein the lifting shaft is a ball spline shaft.
5. The center pin bush press-fitting equipment according to claim 3, wherein the elastic driving device comprises a spring, a first roller, a second roller and a wire rope which are horizontally arranged, and the axis of the first roller is perpendicular to the axis of the second roller; one end of the spring is fixed at the bottom of the top surface of the supporting seat, the other end of the spring is connected with the steel wire rope, and when the steel wire rope horizontally bypasses the first roller, the steel wire rope downwardly bypasses the second roller and then is connected with the connecting pin on the lifting shaft.
6. The center pin housing press-fit apparatus of claim 5, wherein the first roller is disposed adjacent the side beam of the support base and the second roller is fixed adjacent the lift shaft.
7. The center pin bush press-fitting equipment according to claim 1, wherein the locking device comprises a movable locking piece, the locking piece is a bolt inserted on the supporting seat, one end of the bolt is used for being inserted in the lifting shaft, the other end of the bolt is connected with a connecting ring, the connecting ring is connected with the locking driving device through a steel wire rope, and the bolt can be driven to move back and forth in the horizontal direction through the locking driving device.
8. The center pin bush press-fitting apparatus according to claim 1, wherein the positioning block is a rectangular block fixed to a top surface of the rectangular frame.
9. The center pin bush press-fitting equipment of claim 1, wherein the clamp is a manual clamp, and the manual clamp is matched with the positioning block to fix the traction Liang Qianyin pull rod.
10. The center pin bush press-fitting device according to claim 1, wherein the positioning seat is provided with a positioning block matched with the lower groove of the center pin bush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322368579.4U CN220348307U (en) | 2023-08-31 | 2023-08-31 | Center pin bush press-fitting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322368579.4U CN220348307U (en) | 2023-08-31 | 2023-08-31 | Center pin bush press-fitting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220348307U true CN220348307U (en) | 2024-01-16 |
Family
ID=89477526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322368579.4U Active CN220348307U (en) | 2023-08-31 | 2023-08-31 | Center pin bush press-fitting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220348307U (en) |
-
2023
- 2023-08-31 CN CN202322368579.4U patent/CN220348307U/en active Active
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