CN104259826A - Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear - Google Patents
Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear Download PDFInfo
- Publication number
- CN104259826A CN104259826A CN201410431658.8A CN201410431658A CN104259826A CN 104259826 A CN104259826 A CN 104259826A CN 201410431658 A CN201410431658 A CN 201410431658A CN 104259826 A CN104259826 A CN 104259826A
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- China
- Prior art keywords
- steering gear
- gear rack
- rack
- press
- shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B23P19/027—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 using hydraulic or pneumatic means
Abstract
The invention discloses a retainer ring press-fitting device for a rack shaft of a pinion-and-rack type hydraulic steering gear. The device comprises a workbench, a shaft retainer ring clamp, a steering gear rack, a piston, a press-fitting mechanism and a reset mechanism, the shaft retainer ring clamp is arranged on the workbench, the piston is arranged on the steering gear rack, the press-fitting mechanism is used for downwardly pressing the steering gear rack until a shaft retainer ring in the shaft retainer ring clamp is clamped into a retainer ring groove of the steering gear rack, and the reset mechanism is used for upwardly pressing the steering gear rack after press fitting of the shaft retainer ring is finished. By adoption of the structure, the device has the advantages that deformation of the shaft retainer ring is avoided, and whether press fitting is completed or not is completely guaranteed by equipment which alarms if press fitting is unqualified; the special positioning clamp is designed with an inner conical face to effectively limit the retainer ring, and a lower pressing head jacks the rack end face upwards after press fitting is finished so as to pop a rack piston assembly out of the clamp.
Description
Technical field
The present invention relates to automobile steering device field, particularly a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device and pressing method thereof.
Background technology
At present, pinion and-rack hydraulic steering gear is all by rack piston bilateral reciprocation in steering gear cylinder body, produces pressure differential thus produce hydraulic booster about piston in two chambeies.From hydraulic steering gear product design angle primarily of piston and shaft block ring composition, tooth bar shaft block ring and Piston assembling complete after, then the pressure-off power of rack piston is guaranteed by piston and rack support roll riveting mode, and now the shaft block ring assembly technology of the piston limit bearing hydraulic booster is even more important, and during current numerous tooth bar shaft block ring assembling, all that namely very traditional technology mode knocks (as shown in Figure 3) by attaching, to guarantee shaft block ring and tooth bar are seated between circlip groove, can this kind of assembly technology be seated completely to two parts and the deflection of back-up ring cannot effectively ensure, distortion and bump injury can be caused to tooth bar and shaft block ring simultaneously, from product using function and the life-span consideration may bear pressure to piston and affect.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device and pressing method thereof are provided, are fitted in tooth bar circlip groove Inner process at steering gear rack shaft block ring the object avoiding being out of shape to reach.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device, comprise workbench, shaft block ring fixture be on the table set, steering gear rack, the piston be arranged on steering gear rack, by steering gear rack the shaft block ring pressed in shaft block ring fixture snap in the circlip groove Inner of steering gear rack press-loading device, will the resetting-mechanism that the steering gear rack after shaft block ring is pressed be press-fited.
Described workbench is provided with support, is connected with supporting seat below described workbench.
Described press-loading device comprises the upper cylinder being connected to cradle top, the seaming chuck be connected with upper cylinder piston rod, and described seaming chuck is arranged on the top of shaft block ring fixture.
Described shaft block ring fixture comprises clamp cylinder body, described chuck body inner diameter is decreased in the middle part of the inwall of chuck body downwards by upper shed gradually, form conical surface inwall, the minimum diameter of conical surface inwall lower end is less than the diameter of shaft block ring, and described shaft block ring is arranged on the conical surface inwall of chuck body before press-fiting.
Described resetting-mechanism comprise the lower cylinder be connected on supporting seat, with lower cylinder piston rod and the push-down head be connected, described push-down head is arranged on the below of shaft block ring fixture.
Described upper cylinder is connected with controller, and described controller is connected with display screen.
A pressing method for pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device, described method comprises the following steps:
A) steering gear rack is put into shaft block ring fixture, upper cylinder controls seaming chuck and presses down, and is depressed into one end of steering gear rack, makes steering gear rack press to the circlip groove Inner of shaft block ring press-in steering gear rack;
B) control push-down head is pressed by lower cylinder, will the steering gear rack jack-up after shaft block ring be press-fited, and finish the work.
In a step, press-fit process controller and by the piston rod process of cylinder, pressure is shown on a display screen.
The present invention adopts said structure and method, have the following advantages: 1, start button, cylinder drives seaming chuck to press-fit downwards, then by pressure display screen display relevant pressure, avoid the distortion of shaft block ring like this, whether be press-fit into place ensure by equipment completely, as non-conforming equipment will be reported to the police, while special positioning fixture design become inner conical surface and back-up ring carried out effective spacing, push-down head upwards jack-up tooth bar end face after having press-fited, ejects fixture by rack piston assembly; 2, the special positioning fixture of this device is connected with guide rail form with between work top, can remodel fast according to processing different product demand; 3, when semi-automatic and automatic assembly line, greatly reduce the input of human resources, enhance productivity.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of shaft block ring fixture in the present invention;
Fig. 3 is the structural representation of background technology in the present invention;
In Fig. 1 ~ Fig. 2,1, workbench; 2, steering gear rack; 3, shaft block ring; 4, circlip groove; 5, support; 6, supporting seat; 7, upper cylinder; 8, seaming chuck; 9, chuck body; 10, conical surface inwall; 11, lower cylinder; 12, push-down head; 13, display screen; 15, piston.
Detailed description of the invention
A kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device as shown in Fig. 1 ~ Fig. 2, comprise workbench 1, the shaft block ring fixture be arranged on workbench 1, steering gear rack 2, the piston 15 be arranged on steering gear rack 2, by steering gear rack 2 shaft block ring 3 pressed in shaft block ring fixture snap in circlip groove 4 Inner of steering gear rack 2 press-loading device, will the resetting-mechanism of pressure on the steering gear rack 2 that press-fit after shaft block ring 3.Workbench 1 is provided with support 5, is connected with supporting seat 6 below workbench 1.Press-loading device comprises the upper cylinder 7 being connected to support 5 top, the seaming chuck 8 be connected with upper cylinder 7 piston rod, and seaming chuck 8 is arranged on the top of shaft block ring fixture.
Shaft block ring fixture comprises clamp cylinder body 9, chuck body 9 inner diameter is decreased in the middle part of the inwall of chuck body 9 downwards by upper shed gradually, form conical surface inwall 10, the minimum diameter of conical surface inwall 10 lower end is less than the diameter of shaft block ring 3, shaft block ring 3 is arranged on the conical surface inwall 10 of chuck body 9 before press-fiting, and conical surface inwall 10 ensures that the shaft block ring 3 be placed on it falls.Resetting-mechanism comprise the lower cylinder 11 be connected on supporting seat 6, with lower cylinder 11 piston rod and the push-down head 12 be connected, push-down head is arranged on the below of shaft block ring fixture.Upper cylinder 7 is connected with controller, and described controller is connected with display screen 13.Controller can adopt PLC.Display screen 13 is provided with the starting switch that control PLC controller starts upper cylinder 7.
A pressing method for pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device, method comprises the following steps:
A) steering gear rack is put into shaft block ring fixture, upper cylinder controls seaming chuck and presses down, and is depressed into one end of steering gear rack, makes steering gear rack press to the circlip groove Inner of shaft block ring press-in steering gear rack; In a step, press-fit process controller and by the piston rod process of cylinder, pressure is shown on a display screen.
B) control push-down head is pressed by lower cylinder, will the steering gear rack jack-up after shaft block ring be press-fited, and reset, finish the work.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the various improvement that method of the present invention is conceived and technical scheme is carried out; or directly apply to other occasion, all within protection scope of the present invention without improving.
Claims (8)
1. a pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device, is characterized in that: comprise workbench (1), the shaft block ring fixture be arranged on workbench (1), steering gear rack (2), the piston (15) be arranged on steering gear rack (2), the shaft block ring (3) pressed in shaft block ring fixture snaps in the press-loading device of circlip groove (4) Inner of steering gear rack (2), will press-fit the resetting-mechanism of the upper pressure of the steering gear rack (2) after shaft block ring (3) by steering gear rack (2).
2. a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device according to claim 1, it is characterized in that: described workbench (1) is provided with support (5), described workbench (1) below is connected with supporting seat (6).
3. a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device according to claim 1, it is characterized in that: described press-loading device comprises the upper cylinder (7) being connected to support (5) top, the seaming chuck (8) be connected with upper cylinder (7) piston rod, described seaming chuck (8) is arranged on the top of shaft block ring fixture.
4. a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device according to claim 1 or 3, it is characterized in that: described shaft block ring fixture comprises clamp cylinder body (9), described chuck body (9) inner diameter is decreased in the middle part of the inwall of chuck body (9) downwards gradually by upper shed, form conical surface inwall (10), the minimum diameter of conical surface inwall (10) lower end is less than the diameter of shaft block ring (3), described shaft block ring (3) is arranged on the conical surface inwall (10) of chuck body (9) before press-fiting.
5. a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device according to claim 1 or 3, it is characterized in that: described resetting-mechanism comprise the lower cylinder (11) be connected on supporting seat (6), with lower cylinder (11) piston rod and the push-down head be connected (12), described push-down head is arranged on the below of shaft block ring fixture.
6. a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device according to claim 2, is characterized in that: described upper cylinder (7) is connected with controller, and described controller is connected with display screen (13).
7. the pinion and-rack hydraulic steering gear rack shaft pressing method for retainer-ring press mounting device according to any one of claim 1-6, is characterized in that: described method comprises the following steps:
A) steering gear rack is put into shaft block ring fixture, upper cylinder controls seaming chuck and presses down, and is depressed into one end of steering gear rack, makes steering gear rack press to the circlip groove Inner of shaft block ring press-in steering gear rack;
B) control push-down head is pressed by lower cylinder, will the steering gear rack jack-up after shaft block ring be press-fited, and finish the work.
8. the pressing method of a kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device according to claim 7, is characterized in that: in a step, press-fits process controller and is shown on a display screen by pressure by the piston rod process of cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410431658.8A CN104259826A (en) | 2014-08-28 | 2014-08-28 | Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410431658.8A CN104259826A (en) | 2014-08-28 | 2014-08-28 | Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104259826A true CN104259826A (en) | 2015-01-07 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410431658.8A Pending CN104259826A (en) | 2014-08-28 | 2014-08-28 | Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104259826A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605653A (en) * | 2020-12-14 | 2021-04-06 | 重庆华洋单向器制造有限公司 | Semi-circle card assembling equipment for isolator |
| CN113399986A (en) * | 2021-07-12 | 2021-09-17 | 荆州恒隆汽车零部件制造有限公司 | Assembly board of rack and pinion steering gear casing bush |
| CN113695874A (en) * | 2021-08-12 | 2021-11-26 | 宁波考比锐特智能科技有限公司 | Assembling table of steering gear assembling and adjusting mechanism |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263713A (en) * | 1978-10-16 | 1981-04-28 | Westinghouse Electric Corp. | Apparatus for actuating and extracting a tube guide-expander |
| JPH06198521A (en) * | 1992-12-28 | 1994-07-19 | Mikado Technos Kk | Method and device for automatically fitting retaining ring |
| CN201702549U (en) * | 2010-05-18 | 2011-01-12 | 威海联桥仲精机械有限公司 | O-type ring pressing-in device |
| CN201799827U (en) * | 2010-08-24 | 2011-04-20 | 高密市同创汽车配件有限公司 | Automatic assembling machine for three pieces of valve core |
| CN103121162A (en) * | 2013-03-18 | 2013-05-29 | 阜新德尔汽车部件股份有限公司 | Semi-automatic press for mechanical assembly |
| CN204160152U (en) * | 2014-08-28 | 2015-02-18 | 芜湖恒隆汽车转向系统有限公司 | A kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device |
-
2014
- 2014-08-28 CN CN201410431658.8A patent/CN104259826A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4263713A (en) * | 1978-10-16 | 1981-04-28 | Westinghouse Electric Corp. | Apparatus for actuating and extracting a tube guide-expander |
| JPH06198521A (en) * | 1992-12-28 | 1994-07-19 | Mikado Technos Kk | Method and device for automatically fitting retaining ring |
| CN201702549U (en) * | 2010-05-18 | 2011-01-12 | 威海联桥仲精机械有限公司 | O-type ring pressing-in device |
| CN201799827U (en) * | 2010-08-24 | 2011-04-20 | 高密市同创汽车配件有限公司 | Automatic assembling machine for three pieces of valve core |
| CN103121162A (en) * | 2013-03-18 | 2013-05-29 | 阜新德尔汽车部件股份有限公司 | Semi-automatic press for mechanical assembly |
| CN204160152U (en) * | 2014-08-28 | 2015-02-18 | 芜湖恒隆汽车转向系统有限公司 | A kind of pinion and-rack hydraulic steering gear rack shaft retainer-ring press mounting device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112605653A (en) * | 2020-12-14 | 2021-04-06 | 重庆华洋单向器制造有限公司 | Semi-circle card assembling equipment for isolator |
| CN112605653B (en) * | 2020-12-14 | 2022-05-10 | 重庆华洋单向器制造有限公司 | Semi-circle card assembling equipment for isolator |
| CN113399986A (en) * | 2021-07-12 | 2021-09-17 | 荆州恒隆汽车零部件制造有限公司 | Assembly board of rack and pinion steering gear casing bush |
| CN113695874A (en) * | 2021-08-12 | 2021-11-26 | 宁波考比锐特智能科技有限公司 | Assembling table of steering gear assembling and adjusting mechanism |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150107 |
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| RJ01 | Rejection of invention patent application after publication |