CN107877129B - Rubber bushing double-servo press-fitting equipment and press-fitting method - Google Patents
Rubber bushing double-servo press-fitting equipment and press-fitting method Download PDFInfo
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- CN107877129B CN107877129B CN201711238865.1A CN201711238865A CN107877129B CN 107877129 B CN107877129 B CN 107877129B CN 201711238865 A CN201711238865 A CN 201711238865A CN 107877129 B CN107877129 B CN 107877129B
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims description 91
- 230000009977 dual effect Effects 0.000 claims description 7
- 230000033001 locomotion Effects 0.000 claims description 5
- 241001247986 Calotropis procera Species 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000004282 Grewia occidentalis Species 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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Abstract
The invention discloses a rubber bushing double-servo press-fitting device and a press-fitting method, wherein the device comprises a press-fitting servo mechanism, a reverse jacking servo mechanism and a main frame, wherein the press-fitting servo mechanism comprises a horizontal press-fitting upper plate and a press-fitting lower plate, the press-fitting upper plate and the press-fitting lower plate are integrally fixed on the main frame through the press-fitting lower plate, the press-fitting upper plate and the press-fitting lower plate are connected through a vertical press-fitting guide post, a press-fitting sliding table plate is slidably arranged on the press-fitting guide post, a vertically downward lower press head is arranged on the sliding table plate, and a press-fitting driving mechanism is arranged on the press-fitting upper plate and used for controlling the press-fitting sliding table plate to slide up and down along the press-fitting guide post; the anti-top servo mechanism is positioned between the press-in upper plate and the press-in lower plate and comprises an anti-top driving mechanism, an anti-top rack and an anti-top head corresponding to the lower press head, and the anti-top head can move up and down under the control of the anti-top driving mechanism. The pressing-in state of the rubber bushing can be well ensured, and the pressing-in quality of the bushing is greatly improved.
Description
Technical Field
The invention belongs to the technical field of automobile manufacturing, and particularly relates to a double-servo press-fitting device and a press-fitting method for a rubber bushing.
Background
At present, with the development of the automobile industry and the increasing requirements of the market on the quality of automobiles, factories put higher requirements on the assembly of rubber bushings of automobile control arms. The prior automobile control arm rubber bushing is pressed and assembled with the following defects: 1. the position of the bushing after being pressed in is different due to the fact that the bushing is not provided with a stroke control function; 2. without speed control, the bushing does not give enough rebound time to the rubber when being pressed in, so that the rubber is torn; 3. the method has the advantages that the method does not have the monitoring of the pressing force, and the tensile stripping force of the bushing in the workpiece is either too large or too small due to the manufacturing difference of the workpiece; 4. the anti-top function of the bushing is not achieved, so that rubber is accumulated at one end after the bushing is pressed in, or the pressed-in position is inaccurate, and the subsequent assembly quality and the whole vehicle quality are affected.
Disclosure of Invention
The invention aims to provide a double-servo press-fitting device and a double-servo press-fitting method for rubber bushings, which are used for solving the technical problems in the industry and are beneficial to improving the automobile assembly quality in China.
The invention is realized by the following technical scheme: the double-servo press-fitting equipment for the rubber bushing comprises a press-in servo mechanism, a reverse jacking servo mechanism and a main frame, wherein the press-in servo mechanism comprises a horizontal press-in upper plate and a press-in lower plate, and is integrally fixed on the main frame through the press-in lower plate; the anti-top servo mechanism is positioned between the press-in upper plate and the press-in lower plate and comprises an anti-top driving mechanism, an anti-top rack and an anti-top head corresponding to the lower press head, and the anti-top head can move up and down under the control of the anti-top driving mechanism.
The rubber bushing double-servo press-fitting equipment comprises a horizontal anti-top plate and an anti-top lower plate, wherein the anti-top plate is fixed on the press-in lower plate through the anti-top lower plate, a vertical anti-top guide post and an anti-top driving mechanism are arranged on the anti-top plate, a horizontal anti-top sliding table plate is slidably arranged on the anti-top guide post, the anti-top head is vertically and upwards arranged on the anti-top sliding table plate, and the anti-top driving mechanism can control the anti-top sliding table plate to slide up and down along the anti-top guide post.
According to the rubber bushing double-servo press-fitting equipment, the anti-jacking guide post and the anti-jacking sliding table plate are both positioned below the anti-jacking plate, and the anti-jacking plate is provided with a jacking hole for the anti-jacking head to extend upwards and retract downwards.
The rubber bushing double-servo press-fitting device also comprises a bushing press-fitting sleeve corresponding to the lower pressing head and the anti-jacking head, wherein the bushing press-fitting sleeve is positioned between the press-fitting upper plate and the anti-jacking plate and can move up and down between the upper plate and the anti-jacking plate.
According to the rubber bushing double-servo press-fitting device, the bushing press-fitting sleeve is arranged on a workpiece pressing plate, and the workpiece pressing plate can drive the bushing press-fitting sleeve to move up and down.
According to the rubber bushing double-servo press-fitting equipment, two workpiece pressing cylinders are symmetrically and vertically arranged on the anti-jacking frame, and piston rods of the workpiece pressing cylinders are vertically connected with the workpiece pressing plates and can drive the workpiece pressing plates to move up and down.
According to the rubber bushing double-servo press-fitting equipment, the lower pressing head is connected with the pressure sensor.
According to the rubber bushing double-servo press-fitting equipment, the auxiliary fixing groove for fixing the workpiece is formed in the anti-jacking lower plate.
The rubber bushing double-servo press-fitting equipment comprises two press-in guide posts and two press-in ball screws connected between the press-in upper plate and the press-in lower plate, wherein the press-in guide posts and the press-in ball screws are respectively and diagonally symmetrical, and the press-in driving mechanism controls the press-in sliding table plate to slide up and down through the two ball screws.
A rubber bushing press-fitting method comprises the following steps:
S1: placing a workpiece on the anti-jacking top, and driving a workpiece pressing plate and a bushing press-fitting sleeve to move downwards by a workpiece pressing cylinder to press the workpiece; the bushing is placed in a bushing press-fitting sleeve, and a press-in driving mechanism drives a press-in sliding table plate and a lower press head to rapidly descend; meanwhile, the anti-top driving mechanism drives the anti-top sliding table plate and the anti-top to move downwards rapidly;
S2: the lower pressing head descends to the upper part of the bushing to be in contact with the bushing quickly, the pressing-in sliding table plate and the lower pressing head descend slowly, the bushing is pressed into the workpiece slowly until the lower end of the bushing is pressed out of the workpiece for a certain distance, but the lower end of the bushing is not separated from the workpiece, and then the descending is stopped;
s3: the anti-jacking sliding table plate and the anti-jacking head are upwards moved, the pressing head is downwards moved upwards, the anti-jacking head reversely jacks the upper end head of the bushing from below for a certain distance, the upper end head of the bushing is not separated from the workpiece, and then the upper movement is stopped;
S4: and the lower pressing head descends to press the lining into the workpiece again until the lining reaches a designated position, and meanwhile, the anti-jacking top head descends to be separated from the lining, the lower pressing head rapidly ascends to an initial position, the workpiece pressing plate and the lining press-mounting sleeve ascend to loosen the workpiece, the workpiece is taken down, and press-mounting is completed.
The invention has the beneficial effects that: the assembly precision and the assembly quality of the rubber bushing are guaranteed through the common cooperation of the upper and lower double servo systems, and the whole car quality of the car is improved.
Drawings
FIG. 1 is a cross-sectional view of a rubber bushing dual servo press-fitting apparatus of the present invention;
FIG. 2 is a front view of the rubber bushing dual servo press fitting apparatus of the present invention;
FIG. 3 is a schematic view of a press-in servo mechanism according to the present invention;
FIG. 4 is a schematic diagram of the anti-top servo of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present technology will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in the figure, the rubber bushing double-servo press-fitting device comprises a press-in servo mechanism 1, a counter-top servo mechanism 2 and a main frame 3, wherein the press-in servo mechanism 1 comprises a horizontal press-in upper plate 11 and a press-in lower plate 12, and is integrally fixed on the main frame 3 through the press-in lower plate 12, the press-in upper plate 11 and the press-in lower plate 12 are connected through a vertical press-in guide post 13, a press-in sliding table plate 14 is slidably arranged on the press-in guide post 13, a vertically downward lower press head 15 is arranged on the press-in sliding table plate 14, and a press-in driving mechanism 16 is arranged on the press-in upper plate 11 and used for controlling the press-in sliding table plate 14 to slide up and down along the press-in guide post 13; the anti-jacking servo mechanism 2 is located between the upper pressing plate 11 and the lower pressing plate 12, and comprises an anti-jacking driving mechanism 21, an anti-jacking frame 22 and an anti-jacking head 23 corresponding to the lower pressing head 15, wherein the anti-jacking head 23 can move up and down under the control of the anti-jacking driving mechanism 21. The prior art mainly adopts single servo to push down the system and presses the bush into the work piece, and the main characteristics of this scheme lie in, the upper and lower double servo pressure equipment system is adopted for single servo system, the accuracy to the bush installation is higher, because increased a back-jacking process and push down the process more, and bush 8 is because its characteristic properties of rubber material, in the process that increases, the deformation degree that follows on can adapt to the shape of the bush installation position of work piece 7 very fast, make each other more laminating, and the distribution of rubber bush in the work piece can be more even, the phenomenon that the bush pressure equipment is put in place like single servo pressure equipment still a large amount of rubber pile up in one end can not appear, the position controllability to the bush installation is stronger, the installation quality of bush and the whole performance of work piece have been improved by a wide margin.
The anti-top frame 22 comprises a horizontal anti-top plate 24 and an anti-top lower plate 25, and is fixed on the press-in lower plate 12 through the anti-top lower plate 25, a vertical anti-top guide post 26 and the anti-top driving mechanism 21 are installed on the anti-top plate 24, a horizontal anti-top sliding table plate 27 is installed on the anti-top guide post 26 in a sliding manner, the anti-top head 23 is installed on the anti-top sliding table plate 27 in a vertical upward manner, and the anti-top driving mechanism 21 can control the anti-top sliding table plate 27 to slide up and down along the anti-top guide post 26.
Preferably, both the counter-top guide post 26 and the counter-top slide plate 27 are positioned below the counter-top plate 24, and the counter-top plate 24 is provided with a top hole 241 for the counter-top head 23 to extend upward and retract downward.
The press-fitting apparatus further includes a bushing press-fitting sleeve 4 corresponding to the lower ram 15 and the counter top ram 23, the bushing press-fitting sleeve 4 being located between the press-in upper plate 11 and the counter top plate 24 and being movable up and down therebetween.
Preferably, the bushing press-fit sleeve 4 is mounted on a workpiece pressing plate 5, and the workpiece pressing plate 5 can drive the bushing press-fit sleeve 4 to move up and down.
Preferably, the workpiece pressing plate 5 is vertically provided with two pressing plate guide posts 51 downwards, the anti-top plate 24 is provided with two linear bearings 241 corresponding to the pressing plate guide posts 51, and the pressing plate guide posts 51 can slide up and down in the linear bearings 241, so that the stability of the workpiece pressing plate 5 is higher, and the up and down movement process is smoother.
Preferably, two workpiece pressing cylinders 6 are symmetrically and vertically installed on the anti-jacking frame 22, and a piston rod 61 of each workpiece pressing cylinder 6 is vertically connected with the corresponding workpiece pressing plate 5, so that the workpiece pressing plate 5 can be driven to move up and down.
Preferably, the two workpiece pressing cylinders 6 are located below the anti-top plate 24, the anti-top plate 24 is provided with a hole for a piston rod 61 to pass through, and the piston rod 61 passes through the hole from below and then is connected with the workpiece pressing plate 5.
Preferably, the lower ram 15 is connected to a pressure sensor 17.
Preferably, the counter top lower plate 25 is provided with an auxiliary fixing groove 28 for fixing the workpiece 7.
Preferably, the press-in servo mechanism 1 includes two press-in guide posts 13 and two press-in ball screws 18 connected between the press-in upper plate 11 and the press-in lower plate 12, the press-in guide posts 13 and the press-in ball screws 18 are respectively diagonally symmetrical, and the press-in driving mechanism 16 controls the press-in slide plate 14 to slide up and down by the two ball screws 18. In such a setting, the two pressing ball screws 18 also form a strong support for the pressing upper plate 11 and the equipment mounted on the pressing upper plate, and form a four-corner balance support by combining the pressing guide posts 13, so that the whole pressing servo mechanism 1 has stronger stability; the synchronous transmission of the two pressing ball screws 18 ensures that the pressing sliding table plate 14 is more stable in the up-and-down motion process and does not shake, and a more stable pressing force is provided in the pressing process of the bushing, so that the pressing precision is higher.
The whole rubber bushing double-servo press-fitting equipment can be controlled by a PLC system.
The specific driving mode of the press-in driving mechanism 16 is as follows: the pressing servo motor 161, the speed reducer 162, the synchronous pulley 163, and the synchronous belt 164 simultaneously drive the two pressing ball screws 18 to rotate forward and backward to control the pressing slide plate 14 to descend and ascend along the pressing guide post 13, which is only one of driving forms, and is not limited thereto.
The travel switch is arranged on the press-in sliding table plate and is used for automatically controlling the travel of the press-in sliding table plate in cooperation with the PLC system.
The anti-top driving mechanism 21 comprises an anti-top servo motor 211, a speed reducer 212, a synchronous pulley 213, a synchronous belt 214 and an anti-top ball screw 215 which are sequentially connected, wherein the anti-top ball screw 215 is vertically connected with the anti-top sliding table plate 27 and the anti-top plate 24, and the anti-top servo motor 211 controls the anti-top sliding table plate 27 to ascend and descend together with the anti-top head 23 by controlling the forward and reverse rotation of the anti-top ball screw 215.
A rubber bushing press-fitting method comprises the following steps:
S1: placing the workpiece 7 on the anti-jacking top head 23, and driving the workpiece pressing plate 5 and the bushing pressing sleeve 4 to move downwards by the workpiece pressing cylinder 6 to press the workpiece 7; the bushing is put into the bushing press-fitting sleeve 4, and the press-in driving mechanism 16 drives the press-in sliding table plate 14 and the lower pressing head 15 to rapidly descend; meanwhile, the anti-jacking driving mechanism 21 drives the anti-jacking sliding table plate 27 and the anti-jacking heads 23 to move downwards rapidly;
s2: the lower pressing head 15 descends to the upper part of the lining to be in contact with the upper part of the lining, the pressing-in sliding table plate 14 and the lower pressing head 15 descend slowly, the lining is pressed into the workpiece slowly until the lower end of the lining is pressed out of the workpiece 7 by a certain distance but is not separated from the workpiece 7, and then the descending is stopped;
S3: the anti-jacking sliding table 27 and the anti-jacking head 23 are upwards moved, the lower pressure head 15 is upwards moved, the anti-jacking head 23 reversely jacks the upper end of the bushing out of the workpiece 7 from below by a certain distance, but the upper end of the bushing is not separated, and then the upwards movement is stopped;
S4: the lower pressing head 15 descends to press the bush into the workpiece 7 again until the bush reaches a designated position, meanwhile, the anti-jacking top head 23 descends to be separated from the bush, the lower pressing head 15 rapidly ascends to an initial position, the workpiece pressing plate 5 and the bush press-fitting sleeve 4 ascend to loosen the workpiece, the workpiece 7 is taken down, and press-fitting is completed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides a two servo pressure equipment of rubber bush which characterized in that: the pressing servo mechanism comprises a horizontal pressing upper plate and a pressing lower plate, and is integrally fixed on the main frame through the pressing lower plate, the pressing upper plate is connected with the pressing lower plate through a vertical pressing guide post, a pressing sliding table plate is slidably arranged on the pressing guide post, a vertically downward lower pressing head is arranged on the sliding table plate, and a pressing driving mechanism is arranged on the pressing upper plate and used for controlling the pressing sliding table plate to slide up and down along the pressing guide post; the anti-jacking servo mechanism is positioned between the pressing-in upper plate and the pressing-in lower plate and comprises an anti-jacking driving mechanism, an anti-jacking rack and an anti-jacking jack corresponding to the lower pressing head, and the anti-jacking jack can move up and down under the control of the anti-jacking driving mechanism; the anti-top rack comprises a horizontal anti-top plate and an anti-top lower plate, and is fixed on the press-in lower plate through the anti-top lower plate, a vertical anti-top guide post and the anti-top driving mechanism are arranged on the anti-top plate, a horizontal anti-top sliding table plate is slidably arranged on the anti-top guide post, the anti-top head is vertically and upwards arranged on the anti-top sliding table plate, and the anti-top driving mechanism can control the anti-top sliding table plate to slide up and down along the anti-top guide post; the pressing device also comprises a lining pressing sleeve corresponding to the lower pressing head and the anti-jacking head, and the lining pressing sleeve is positioned between the pressing upper plate and the anti-jacking plate and can move up and down between the pressing upper plate and the anti-jacking plate; the anti-top guide post and the anti-top sliding table plate are both positioned below the anti-top plate, and the anti-top plate is provided with a top hole for the anti-top to extend upwards and retract downwards.
2. The rubber bushing dual servo press-fitting apparatus according to claim 1, wherein: the bushing press-fit sleeve is arranged on a workpiece pressing plate, and the workpiece pressing plate can drive the bushing press-fit sleeve to move up and down.
3. The rubber bushing dual servo press-fitting apparatus according to claim 2, wherein: two workpiece pressing cylinders are symmetrically and vertically arranged on the anti-jacking frame, and piston rods of the workpiece pressing cylinders are vertically connected with the workpiece pressing plates and can drive the workpiece pressing plates to move up and down.
4. The rubber bushing dual servo press-fitting apparatus according to claim 1, wherein: the lower pressure head is connected with a pressure sensor.
5. The rubber bushing dual servo press-fitting apparatus according to claim 1, wherein: and an auxiliary fixing groove for fixing the workpiece is formed in the anti-jacking lower plate.
6. The rubber bushing dual servo press-fitting apparatus according to claim 1, wherein: the pressing-in servo mechanism comprises two pressing-in guide posts and two pressing-in ball screws connected between the pressing-in upper plate and the pressing-in lower plate, the pressing-in guide posts and the pressing-in ball screws are respectively and diagonally symmetrical, and the pressing-in driving mechanism controls the pressing-in sliding table plate to slide up and down through the two pressing-in ball screws.
7. A rubber bushing press-fitting process based on the rubber bushing double-servo press-fitting equipment according to any one of claims 1 to 6, which is characterized by comprising the following steps:
S1: placing a workpiece on the anti-jacking top, and driving a workpiece pressing plate and a bushing press-fitting sleeve to move downwards by a workpiece pressing cylinder to press the workpiece; the bushing is placed in a bushing press-fitting sleeve, and a press-in driving mechanism drives a press-in sliding table plate and a lower press head to rapidly descend; meanwhile, the anti-top driving mechanism drives the anti-top sliding table plate and the anti-top to move downwards rapidly;
S2: the lower pressing head descends to the upper part of the bushing to be in contact with the bushing quickly, the pressing-in sliding table plate and the lower pressing head descend slowly, the bushing is pressed into the workpiece slowly until the lower end of the bushing is pressed out of the workpiece for a certain distance, but the lower end of the bushing is not separated from the workpiece, and then the descending is stopped;
s3: the anti-jacking sliding table plate and the anti-jacking head are upwards moved, the pressing head is downwards moved upwards, the anti-jacking head reversely jacks the upper end head of the bushing from below for a certain distance, the upper end head of the bushing is not separated from the workpiece, and then the upper movement is stopped;
S4: and the lower pressing head descends to press the lining into the workpiece again until the lining reaches a designated position, and meanwhile, the anti-jacking top head descends to be separated from the lining, the lower pressing head rapidly ascends to an initial position, the workpiece pressing plate and the lining press-mounting sleeve ascend to loosen the workpiece, the workpiece is taken down, and press-mounting is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711238865.1A CN107877129B (en) | 2017-11-30 | 2017-11-30 | Rubber bushing double-servo press-fitting equipment and press-fitting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711238865.1A CN107877129B (en) | 2017-11-30 | 2017-11-30 | Rubber bushing double-servo press-fitting equipment and press-fitting method |
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| CN107877129A CN107877129A (en) | 2018-04-06 |
| CN107877129B true CN107877129B (en) | 2024-05-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109894841A (en) * | 2019-01-21 | 2019-06-18 | 博众精工科技股份有限公司 | Bushing press-mounting equipment and bushing press-mounting method |
| CN109895023A (en) * | 2019-01-21 | 2019-06-18 | 博众精工科技股份有限公司 | The two-way press-loading device of rubber bushing and the two-way pressing method of rubber bushing |
| CN111168381B (en) * | 2020-01-21 | 2021-12-03 | 浙江巨力电机成套设备有限公司 | Structure for detecting height of double pressed workpieces simultaneously |
| CN112518288B (en) * | 2020-11-02 | 2024-05-10 | 江苏纽泰格科技集团股份有限公司 | Rubber part pressing device of automobile bracket products |
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|---|---|---|---|---|
| JP2001062645A (en) * | 1999-08-27 | 2001-03-13 | Toyota Motor Corp | Bush pressing-in device |
| JP2003311551A (en) * | 2002-04-22 | 2003-11-05 | Showa Denko Kk | Elastic bush press-fitting method for press-fitting apparatus, as well as vibration-isolation joint member and arm member using the same |
| CN104148918A (en) * | 2014-08-08 | 2014-11-19 | 湖北机电院装备制造有限责任公司 | Shock absorber pressing machine |
| CN205096814U (en) * | 2015-11-16 | 2016-03-23 | 北京起重运输机械设计研究院 | Bearing press fitting equipment of backing pressure cable pulley |
| CN206216215U (en) * | 2016-11-25 | 2017-06-06 | 重庆机电智能制造有限公司 | A kind of single bushing press-mounting special plane |
| CN207656210U (en) * | 2017-11-30 | 2018-07-27 | 成都瑞戈科技有限公司 | A kind of double servo press-loading devices of rubber bushing |
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2017
- 2017-11-30 CN CN201711238865.1A patent/CN107877129B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001062645A (en) * | 1999-08-27 | 2001-03-13 | Toyota Motor Corp | Bush pressing-in device |
| JP2003311551A (en) * | 2002-04-22 | 2003-11-05 | Showa Denko Kk | Elastic bush press-fitting method for press-fitting apparatus, as well as vibration-isolation joint member and arm member using the same |
| CN104148918A (en) * | 2014-08-08 | 2014-11-19 | 湖北机电院装备制造有限责任公司 | Shock absorber pressing machine |
| CN205096814U (en) * | 2015-11-16 | 2016-03-23 | 北京起重运输机械设计研究院 | Bearing press fitting equipment of backing pressure cable pulley |
| CN206216215U (en) * | 2016-11-25 | 2017-06-06 | 重庆机电智能制造有限公司 | A kind of single bushing press-mounting special plane |
| CN207656210U (en) * | 2017-11-30 | 2018-07-27 | 成都瑞戈科技有限公司 | A kind of double servo press-loading devices of rubber bushing |
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| CN107877129A (en) | 2018-04-06 |
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