CN117021030A - A front subframe bushing press-fitting device and press-fitting process - Google Patents
A front subframe bushing press-fitting device and press-fitting process Download PDFInfo
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- CN117021030A CN117021030A CN202310940190.4A CN202310940190A CN117021030A CN 117021030 A CN117021030 A CN 117021030A CN 202310940190 A CN202310940190 A CN 202310940190A CN 117021030 A CN117021030 A CN 117021030A
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- bushing
- positioning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven
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- Engineering & Computer Science (AREA)
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Abstract
本发明公开了一种前副车架衬套压装装置及压装工艺，涉及汽车前副车架总成领域，包括工作台，工作台上固定有若干辅助定位块用于支撑前副车架，各辅助定位块之间的工作台上设置伺服压机固定座，用于安装伺服压机；伺服压机固定座上背离伺服压机的一侧设置产品挡块，产品挡块上相对滑动地穿设有防错导向头，由定位气缸驱动的防错导向头插入前副车架的套管内，且防错导向头上同轴套装衬套；伺服压机与产品挡块之间的伺服压机固定座上设置滑动连接座，伺服压机的压头露出伺服压机固定座，并沿轴向推动滑动连接座，使固装在滑动连接座上的衬套压头将衬套与套管压紧。本发明解决了压装过程中力和速度不可控问题，保证压装同轴度，提高压装产品质量。
The invention discloses a front subframe bushing press-fitting device and a press-fitting process, and relates to the field of automobile front subframe assemblies. It includes a workbench, and a number of auxiliary positioning blocks are fixed on the workbench for supporting the front subframe. , a servo press fixing seat is set on the workbench between the auxiliary positioning blocks for installing the servo press; a product stopper is set on the side of the servo press fixing seat away from the servo press, and the product stopper slides relatively The wear is equipped with a mistake-proof guide head. The mistake-proof guide head driven by the positioning cylinder is inserted into the casing of the front subframe, and the bushing is coaxially installed on the mistake-proof guide head; the servo press between the servo press and the product stop A sliding connection seat is set on the fixed seat of the servo press. The press head of the servo press exposes the fixed seat of the servo press and pushes the sliding connection seat in the axial direction so that the bushing press head fixed on the sliding connection seat connects the bushing and the casing. Press down. The invention solves the problem of uncontrollable force and speed during the press-fitting process, ensures the coaxiality of press-fitting, and improves the quality of press-fitting products.
Description
Technical Field
The invention relates to the field of automobile front auxiliary frame assemblies, in particular to a front auxiliary frame bushing press-fitting device and a press-fitting process.
Background
The front auxiliary frame bushing plays a role in preventing vibration and impact load and buffering chassis impact in the front auxiliary frame of the automobile. Meanwhile, the auxiliary effect on the comfort and noise control of the automobile is also achieved, and therefore the quality of the front auxiliary frame of the automobile is directly affected by the requirement on the dimensional accuracy of the press-fit of the bushing.
At present, domestic manufacturers press the bushings by a hard hydraulic hard extrusion method, the press-mounting speed is generally high, no force or displacement monitoring exists, the placement of the bushings is also manual, and the concentricity is not high. Thus, the following drawbacks exist:
1. the hydraulic pressing-in speed is uncontrollable, so that the inside of the bushing is easily damaged, and the service life of the bushing is influenced;
2. because the pressing-in process has no force and displacement monitoring function, the damage inside the bushing cannot be monitored;
3. the bush is mostly placed by hand, can't accomplish concentricity, often can cause the bush side cut damage.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a front auxiliary frame bushing press-fitting device and a press-fitting process, which solve the problem that the force and the speed are uncontrollable in the press-fitting process, ensure the press-fitting coaxiality and improve the quality of press-fitting products.
The invention aims at being completed by the following technical scheme: the front auxiliary frame bushing press-fitting device comprises a workbench, wherein a plurality of auxiliary positioning blocks are fixed on the workbench and used for supporting the front auxiliary frame, and a servo press fixing seat is arranged on the workbench between the auxiliary positioning blocks and used for installing a servo press; a product stop block is arranged on one side, away from the servo press, of the servo press fixing seat, an error-proof guide head is arranged on the product stop block in a penetrating manner in a relatively sliding manner, the error-proof guide head driven by a positioning cylinder is used for being inserted into a sleeve of the front auxiliary frame to realize positioning, and the error-proof guide head is also used for coaxially sleeving a bushing; the servo press fixing seat between the servo press and the product stop block is provided with a sliding connecting seat in a relative sliding manner, and a pressure head of the servo press exposes out of the servo press fixing seat and is used for pushing the sliding connecting seat along the axial direction, so that a lining pressure head fixedly arranged on the sliding connecting seat compresses a lining and a sleeve.
As a further technical scheme, the servo press fixing seat is provided with a linear guide rail along the axial direction of the servo press, and the sliding connecting seat is slidably arranged on the linear guide rail through a sliding block.
As a further technical scheme, one side of product dog deviates from the sliding connection seat and sets up the locating support for install the location cylinder, mistake proofing direction head deviates from the sliding connection seat one side fixedly and is equipped with the connecting block, and the piston rod of location cylinder passes through the connecting block and connects the drive mistake proofing direction head.
As a further technical scheme, set up the guide bar on the connecting block, guide bar slidable mounting is on the locating support, leads mistake proofing direction head.
As a further technical scheme, the positioning rod is arranged on one side, facing the sliding connecting seat, of the error-proof guide head and is used for being inserted into the central hole of the bushing, so that the bushing and the error-proof guide head are coaxially positioned.
As a further technical scheme, the error-proof guide head is further provided with an error-proof bulge on one side facing the sliding connecting seat, and the error-proof bulge is used for being matched with a notch on the bushing to realize error-proof positioning.
As a further technical scheme, the error-proof guide head is provided with a conical surface towards one side of the sliding connecting seat, and the conical surface is used for guiding the error-proof guide head into the sleeve.
The front auxiliary frame bushing press-fitting technology adopts the front auxiliary frame bushing press-fitting device and comprises the following steps:
step one: placing the front auxiliary frame on the auxiliary positioning block to enable the front auxiliary frame to be initially positioned;
step two: starting a positioning cylinder to drive an error-proof guide head, so that the error-proof guide head is inserted into a sleeve to precisely position the front auxiliary frame;
step three: the bushing is sleeved on a positioning rod of an error-proof guide head penetrating through the bushing by an operator, so that the bushing and the bushing are coaxially positioned;
step four: starting a servo press, wherein a pressure head of the servo press pushes the sliding connecting seat to drive the bushing pressure head to press the bushing into the sleeve, measuring force and displacement data in the pressing process in real time by the servo press, drawing a pressing data graph, and outputting the pressing data graph to a control end;
step five: after the pressing-in is in place, the positioning cylinder and the servo press automatically retract, and the control end compares the press-fit data graph obtained in the fourth step with preset parameters to judge the qualification and finish the press-fit.
As a further technical scheme, in the third step, when the bushing is installed, the notch of the bushing is aligned with the error-proof bulge of the error-proof guide head, so that error-proof positioning is realized.
As a further technical scheme, in the fifth step, if the press-fit data graph meets the preset parameter requirement, the control end sends a green light signal, and an operator takes down the front subframe which is qualified in press-fit and places the front subframe in a subsequent flow line; if the press-fit data graph does not meet the preset parameter requirement, the control end sends out a red light signal, and an operator takes down the front auxiliary frame which is unqualified in press-fit and places the front auxiliary frame into a production line of unqualified products.
The beneficial effects of the invention are as follows:
1. the device is used for servo press fitting, the bottom adopts a linear guide rail mechanism, the press-in speed of a servo press is controllable, and the problem that the force and the speed are uncontrollable in the press fitting process is solved, so that the quality of the press fitting process is ensured;
2. the servo press is driven by the servo electric cylinder, so that force and displacement data in the process of pressing the bushing can be monitored in real time, a curve is drawn, an abnormal curve is found to automatically alarm, and unqualified parts are thoroughly stopped from being pressed;
3. the bushing positioning of the device adopts a floating guide mechanism (error-proof guide head), the error-proof guide head is sleeved into the sleeve and the bushing at the same time, so that the high-precision positioning of the sleeve and the bushing is realized, the coaxiality of press mounting is ensured, the bushing is prevented from being biased, and the one-time offline qualification rate is improved;
4. the error-proof guide head is provided with the error-proof bulge which can be matched with the notch on the bushing to prevent the bushing from deflecting and misplacing during press fitting, and the error-proof guide head is also provided with the conical surface, so that the sleeve can be quickly led in, and the press fitting efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the present invention during press fitting.
Fig. 3 is a schematic structural view of the front subframe according to the present invention without the bushing press-fitted.
Fig. 4 is a schematic structural view of the front subframe after the bushing is press-fitted in the present invention.
FIG. 5 is a schematic diagram of an error-proofing guide head according to the present invention.
FIG. 6 is a schematic diagram of a connection structure between a servo press fixing base and a product stopper in the present invention.
Fig. 7 is a schematic structural view of a bushing according to the present invention.
Reference numerals illustrate: the automatic positioning device comprises a workbench 1, an auxiliary positioning block 2, a linear guide rail 3, a servo press 4, a servo press fixing seat 5, a sliding connecting seat 6, a bushing pressing head 7, an error-proofing guide head 8, a product stop block 9, a connecting block 10, a guide rod 11, a positioning bracket 12, a positioning cylinder 13, a front auxiliary frame 14, a sleeve 15, a bushing 16, a notch 17, a positioning rod 18, an error-proofing bulge 19, a conical surface 20 and a central hole 21.
Detailed Description
The invention will be described in detail below with reference to the attached drawings:
examples: as shown in fig. 1 to 7, the front subframe bushing press fitting device comprises a workbench 1, an auxiliary positioning block 2, a linear guide rail 3, a servo press 4, a servo press fixing seat 5, a sliding connecting seat 6, a bushing press head 7, an error-proofing guide head 8, a product stop block 9, a connecting block 10, a guide rod 11, a positioning bracket 12, a positioning cylinder 13, a front subframe 14, a sleeve 15, a bushing 16, a notch 17, a positioning rod 18, an error-proofing bulge 19, a conical surface 20 and a central hole 21.
Referring to fig. 1, three auxiliary positioning blocks 2 (the number and the fixing positions of which can be adjusted according to the model and the specification of the front subframe 14) are fixed on the table 1 for supporting (initially positioning) the front subframe 14. A servo press fixing seat 5 is arranged on the workbench 1 between the auxiliary positioning blocks 2, the servo press 4 is arranged at one end of the servo press fixing seat 5, and a product stop block 9 is arranged on one side, away from the servo press 4, of the servo press fixing seat 5. A linear guide rail 3 is arranged on the servo press fixing seat 5 along the axial direction of the servo press 4, and the sliding connecting seat 6 is slidably arranged on the linear guide rail 3 through a sliding block. The product dog 9 is worn to establish a mistake proofing direction head 8 with sliding relatively, and one side that the product dog 9 deviates from sliding connection seat 6 sets up locating support 12, installs a positioning cylinder 13 on the locating support 12, and mistake proofing direction head 8 deviates from sliding connection seat 6's one side and is equipped with connecting block 10 admittedly, and the piston rod of positioning cylinder 13 passes through connecting block 10 to be connected and drives mistake proofing direction head 8, makes mistake proofing direction head 8 insert in the sleeve pipe 15 of preceding sub vehicle frame 14 and realizes the location. Further, as shown in fig. 5 and 6, a guide rod 11 is provided on the connection block 10, and the guide rod 11 is slidably mounted on the positioning bracket 12 to guide the horizontal sliding (the axial sliding along the servo press 4) of the error-proofing guide head 8. Preferably, a positioning rod 18 is arranged on the error-proof guide head 8 towards the center of one side of the sliding connection seat 6, and after the error-proof guide head 8 passes through the sleeve 15, a central hole 21 of the bushing 16 is sleeved on the positioning rod 18, so that the bushing 16 and the error-proof guide head 8 are coaxially positioned. The error-proof guide head 8 is further provided with an error-proof bulge 19 on one side facing the sliding connection seat 6, as shown in fig. 7, the error-proof bulge 19 can be matched with the notch 17 on the bushing 16 to realize error-proof positioning. Preferably, a conical surface 20 is further provided on the error-proofing guiding head 8 on the side facing the sliding connection seat 6, the conical surface 20 facilitating guiding the error-proofing guiding head 8 into the sleeve 15. The pressure head of the servo press 4 exposes the servo press fixing seat 5, and when the servo press 4 works, the pressure head of the servo press 4 pushes the sliding connecting seat 6 along the axial direction, so that the bushing 16 and the sleeve 15 are compressed by the bushing pressure head 7 fixedly arranged on the sliding connecting seat 6, as shown in fig. 3 and 4.
As shown in fig. 1 and 2, a front subframe bushing press-fitting process, which adopts the front subframe bushing press-fitting device, comprises the following steps:
step one: placing the front auxiliary frame 14 on the auxiliary positioning block 2 to enable the front auxiliary frame 14 to be positioned preliminarily;
step two: starting a positioning cylinder 13, wherein a piston rod of the positioning cylinder 13 pushes a connecting block 10, and under the guidance of a guide rod 11, the connecting block 10 drives an error-proofing guide head 8 to horizontally slide (axially move relative to a servo press 4) so that the error-proofing guide head 8 is inserted into a sleeve 15, thereby accurately positioning a front auxiliary frame 14;
step three: the bushing 16 is sleeved on the positioning rod 18 of the error-proofing guide head 8 after passing through the sleeve 15 by an operator, so that the sleeve 15 and the bushing 16 are coaxially positioned; preferably, when the bushing 16 is installed, the notch 17 of the bushing 16 is aligned with the error-proofing protrusion 19 of the error-proofing guide head 8 to achieve error-proofing positioning.
Step four: starting the servo press 4, pushing the sliding connecting seat 6 by the axial movement of the pressure head of the servo press 4, driving the bushing pressure head 7 to press the bushing 16 into the sleeve 15, measuring force and displacement data in the pressing process by the servo press 4 in real time, drawing a pressing data graph, and outputting to a control end;
step five: after the pressing in place, the positioning cylinder 13 and the servo press 4 automatically retract, the control end compares the press-fit data graph obtained in the fourth step with preset parameters to judge the qualification, if the press-fit data graph meets the requirement of the preset parameters, the control end sends a green light signal, and an operator takes down the front subframe 14 qualified in press-fit and puts the front subframe into a subsequent flow line to finish press-fit; if the press-fit data graph does not meet the preset parameter requirement, the control end sends a red light signal, and an operator takes off the front auxiliary frame 14 which is unqualified in press-fit and places the front auxiliary frame into a production line of unqualified products to wait for the next press-fit.
The invention provides press-fitting power through the servo press, solves the problem of uncontrollable force and speed in the press-fitting process, monitors force and displacement data in the press-fitting process in real time by the servo press, draws a press-fitting data graph, thoroughly eliminates press-fitting unqualified products, and inserts an error-proof guide head into a sleeve of a front auxiliary frame in advance before press-fitting, and simultaneously coaxially sleeves the sleeve on the error-proof guide head, so that the sleeve and the sleeve are coaxially centered, the press-fitting coaxiality is ensured, and the quality of press-fitting products is improved.
It should be understood that equivalents and modifications to the technical scheme and the inventive concept of the present invention should fall within the scope of the claims appended hereto.
Claims (10)
1. The utility model provides a preceding sub vehicle frame bush pressure equipment device which characterized in that: the automatic control device comprises a workbench (1), wherein a plurality of auxiliary positioning blocks (2) are fixed on the workbench (1) and used for supporting a front auxiliary frame (14), and servo press fixing seats (5) are arranged on the workbench (1) between the auxiliary positioning blocks (2) and used for installing a servo press (4); a product stop block (9) is arranged on one side, away from the servo press (4), of the servo press fixing seat (5), an error-proofing guide head (8) is arranged on the product stop block (9) in a penetrating manner in a relatively sliding manner, the error-proofing guide head (8) driven by a positioning cylinder (13) is used for being inserted into a sleeve (15) of a front auxiliary frame (14) to realize positioning, and the error-proofing guide head (8) is also used for coaxially sleeving a bushing (16); a sliding connecting seat (6) is arranged on a servo press fixing seat (5) between a servo press (4) and a product stop block (9) in a relative sliding manner, a pressure head of the servo press (4) is exposed out of the servo press fixing seat (5) and is used for pushing the sliding connecting seat (6) along the axial direction, so that a lining pressure head (7) fixedly arranged on the sliding connecting seat (6) tightly presses a lining (16) and a sleeve (15).
2. The front subframe liner press-fitting device according to claim 1, wherein: the servo press fixing seat (5) is provided with a linear guide rail (3) along the axial direction of the servo press (4), and the sliding connecting seat (6) is slidably arranged on the linear guide rail (3) through a sliding block.
3. The front subframe liner press-fitting device according to claim 1, wherein: one side of the product stop block (9) deviating from the sliding connection seat (6) is provided with a positioning bracket (12) for installing a positioning air cylinder (13), one side of the error proofing guide head (8) deviating from the sliding connection seat (6) is fixedly provided with a connecting block (10), and a piston rod of the positioning air cylinder (13) is connected through the connecting block (10) to drive the error proofing guide head (8).
4. A front subframe bushing press-fitting device as claimed in claim 3, wherein: the connecting block (10) is provided with a guide rod (11), and the guide rod (11) is slidably mounted on the positioning support (12) to guide the error-proof guide head (8).
5. The front subframe liner press-fitting device according to claim 1, wherein: and a positioning rod (18) is arranged on one side, facing the sliding connecting seat (6), of the error-proof guide head (8) and is used for being inserted into a central hole (21) of the bushing (16) so as to realize the coaxial positioning of the bushing (16) and the error-proof guide head (8).
6. The front subframe liner press-fitting device according to claim 1, wherein: the error-proof guide head (8) is provided with an error-proof bulge (19) on one side facing the sliding connecting seat (6) and is used for being matched with a notch (17) on the bushing (16) to realize error-proof positioning.
7. The front subframe liner press-fitting device according to claim 1, wherein: a conical surface (20) is arranged on one side, facing the sliding connecting seat (6), of the error-proof guide head (8), and the conical surface (20) is used for guiding the error-proof guide head (8) into the sleeve (15).
8. A front subframe lining press-fitting process, employing the front subframe lining press-fitting device as claimed in any one of claims 1 to 7, characterized by comprising the steps of:
step one: placing the front auxiliary frame (14) on the auxiliary positioning block (2) to enable the front auxiliary frame (14) to be initially positioned;
step two: starting a positioning cylinder (13) to drive an error-proof guide head (8), so that the error-proof guide head (8) is inserted into a sleeve (15) to precisely position a front auxiliary frame (14);
step three: an operator sleeves the bushing (16) on a positioning rod (18) of the error-proof guide head (8) penetrating through the sleeve (15), so that the sleeve (15) and the bushing (16) are coaxially positioned;
step four: starting a servo press (4), pushing a sliding connecting seat (6) by a pressure head of the servo press (4), driving a bushing pressure head (7) to press a bushing (16) into a sleeve (15), measuring force and displacement data in the pressing process in real time by the servo press (4), drawing a pressing data graph, and outputting the pressing data graph to a control end;
step five: after the pressing-in is in place, the positioning air cylinder (13) and the servo press (4) automatically retract, and the control end compares the press-fit data graph obtained in the step four with preset parameters to judge the qualification and finish the press-fit.
9. The front subframe liner press-fitting process according to claim 8, wherein: in the third step, when the bushing (16) is installed, the notch (17) of the bushing (16) is aligned with the error-proof bulge (19) of the error-proof guide head (8), so that error-proof positioning is realized.
10. The front subframe lining press-fitting process according to claim 8 or 9, characterized in that: in the fifth step, if the press-fit data graph meets the preset parameter requirement, the control end sends a green light signal, and an operator takes down the front auxiliary frame (14) which is qualified in press-fit and places the front auxiliary frame in a subsequent flow line; if the press-fit data graph does not meet the preset parameter requirement, the control end sends a red light signal, and an operator takes down the front auxiliary frame (14) which is unqualified in press-fit and places the front auxiliary frame into a production line of unqualified products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310940190.4A CN117021030B (en) | 2023-07-28 | Front auxiliary frame bushing press-fitting device and press-fitting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310940190.4A CN117021030B (en) | 2023-07-28 | Front auxiliary frame bushing press-fitting device and press-fitting process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117021030A true CN117021030A (en) | 2023-11-10 |
| CN117021030B CN117021030B (en) | 2026-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118106728A (en) * | 2024-02-27 | 2024-05-31 | 宁波建新华谊铝业有限公司 | Automobile auxiliary frame rear outer bushing mounting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286548A (en) * | 2013-04-25 | 2013-09-11 | 芜湖众力底盘系统有限公司 | Automobile control arm and lining press-fitting device |
| CN209986496U (en) * | 2019-04-29 | 2020-01-24 | 深圳华阳宇光汽车配件有限公司 | Press mounting device on bushing press mounting equipment |
| CN212145217U (en) * | 2020-03-16 | 2020-12-15 | 浙江万向系统有限公司 | Swing arm bush press-fitting machine |
| CN112605636A (en) * | 2020-12-24 | 2021-04-06 | 浙江万向系统有限公司 | Double-flanging rubber bushing press-fitting device and press-fitting method |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286548A (en) * | 2013-04-25 | 2013-09-11 | 芜湖众力底盘系统有限公司 | Automobile control arm and lining press-fitting device |
| CN209986496U (en) * | 2019-04-29 | 2020-01-24 | 深圳华阳宇光汽车配件有限公司 | Press mounting device on bushing press mounting equipment |
| CN212145217U (en) * | 2020-03-16 | 2020-12-15 | 浙江万向系统有限公司 | Swing arm bush press-fitting machine |
| CN112605636A (en) * | 2020-12-24 | 2021-04-06 | 浙江万向系统有限公司 | Double-flanging rubber bushing press-fitting device and press-fitting method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118106728A (en) * | 2024-02-27 | 2024-05-31 | 宁波建新华谊铝业有限公司 | Automobile auxiliary frame rear outer bushing mounting device |
| CN118106728B (en) * | 2024-02-27 | 2024-08-30 | 宁波建新华谊铝业有限公司 | Automobile auxiliary frame rear outer bushing mounting device |
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