CN104405810A - Method for assembling inflatable single-tube shock absorber - Google Patents
Method for assembling inflatable single-tube shock absorber Download PDFInfo
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- CN104405810A CN104405810A CN201410562872.7A CN201410562872A CN104405810A CN 104405810 A CN104405810 A CN 104405810A CN 201410562872 A CN201410562872 A CN 201410562872A CN 104405810 A CN104405810 A CN 104405810A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/061—Mono-tubular units
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
- F16F9/066—Units characterised by the partition, baffle or like element
- F16F9/067—Partitions of the piston type, e.g. sliding pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2226/00—Manufacturing; Treatments
- F16F2226/04—Assembly or fixing methods; methods to form or fashion parts
- F16F2226/045—Press-fitting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to an auto part processing technology, and discloses a method for assembling an inflatable single-tube shock absorber. The method is characterized by comprising the following steps of tailoring a piece of assembling equipment which comprises a base, an upright post, an upper template, a sliding template, a multifunctional guide sleeve, upper and lower fixed air cylinders, upper and lower floating air cylinders, a workpiece positioning seat and a guider oil seal press-fitting sleeve; assembling the inflatable single-tube shock absorber according to the following steps of putting an oil storage tube sub-assembly and a piston sub-assembly into the tailored equipment, filling nitrogen into the workpiece oil storage tube sub-assembly through an inflation inlet of the multifunctional guide sleeve, injecting oil into the workpiece oil storage tube sub-assembly through an oil inlet, and pressing a workpiece guider oil seal press-fitting sub-assembly into the workpiece oil storage tube sub-assembly through the piston rod guider oil seal press-fitting sleeve. The three traditional independent procedures for the inflatable shock absorber are integrated in one procedure, equipment investment is greatly reduced, the production efficiency is improved and the product assembly quality is improved.
Description
Technical field
The present invention relates to the processing technique of auto parts and components, especially a kind of assembly method of gas-filled type monotubular shock absorber.
Background technique
Compared with Double-drum type shock absorber, gas-filled type monotubular shock absorber is (see Fig. 1, primarily of suspension ring 1, floating piston 2, piston sub-assembly 3, fuel tank sub-assembly 4, composition such as connecting rod 5 guider oil sealing sub-assembly 6 grade), its tool has the following advantages: (1) adopt floating piston and decrease the system of a sleeving valve, making designs simplification, weight saving; (2), owing to being filled with high pressure nitrogen in vibration damper, wheel can be reduced by vibration when impacting suddenly, and can stress release treatment; (3), because the clutch release slave cylinder of single cylinder type vibration damper and piston diameter are all greater than the Double-drum type shock absorber of the same terms, thus its damping is larger, and functional reliability is stronger; (4) the pressurized gas of single cylinder type vibration damper inside and fluid are separated by floating piston, eliminate the emulsion of oil, are therefore used widely.
The assembling of Conventional pneumatic formula single cylinder type vibration damper needs three process to complete, and assembly technology is complicated, is respectively inflation, oiling, press-fits guider sub-assembly oil sealing.Traditional processing technology is adopted to need first to load floating piston 2,------using pressing machine to press-fit guider oil sealing sub-assembly 6---uses inflation welding machine to weld from bottom inflatable to piston sub-assembly 3 to use Lubricators oiling, finally welding bottom suspension ring 1, this technique drawback is operation and needs the equipment of use many, and first inflate the technique one welded afterwards easily cause vibration damper inner piece strike sparks affect vibration damper quality, its two assembled after again welding bottom suspension ring, because welding temperature is too high easily make floating piston, rubber seal sclerosis on piston sub-assembly, and cause product failure or lower product working life.Need three operations and three different equipment to complete assembling by old explained hereafter in addition, according to the average cost of three equipment in the market, estimate more than 300,000 RMB, three operations just need three operators to come simultaneously, also larger waste of human resource can be caused, single cylinder type vibration damper inflation, oiling in sum, press-fit oil sealing guider divide three operations come will cause a large amount of personnel and equipment purchase fund waste, and inter process to add up the turnaround time longer, reduce manufacturing efficiency.
Summary of the invention
Object of the present invention will solve gas-filled type monotubular shock absorber tradition assembling mode complex process exactly, and equipment investment is large, and manufacturing efficiency is low, and product assembly quality is undesirable, affects the problems such as quality of product, provides a kind of assembly method of gas-filled type monotubular shock absorber.
Concrete scheme of the present invention is: a kind of assembly method of gas-filled type monotubular shock absorber, it is characterized in that: a first special assembly equipment, it has a base, base is provided with four root posts, the top of four root posts is installed with upper die plate, and sleiding form is equipped with in the stage casing of four root posts, and the middle part of sleiding form is provided with multi-functional guide pin bushing, multi-functional guide pin bushing has pouring orifice and the inflation inlet of upper and lower dislocation, and the lower end of multi-functional guide pin bushing is also provided with seal ring, be provided with at the middle part of upper die plate and fix cylinder, its piston rod head is arranged downwards, and by cylinder frame, floating cylinder is housed at piston rod head, and the head of upper floating cylinder is arranged equally downwards, base is provided with lower fixing cylinder, and its piston rod head is equipped with lower cylinder frame upwards to be arranged, lower cylinder frame is provided with lower floating cylinder and four connecting rods, and the upper end of four connecting rods is fixedly connected with sleiding form, the piston crown of lower floating cylinder is upwards arranged, and is provided with Workpiece fixing seat at the piston crown of lower floating cylinder, is furnished with a guider oil seal pressing cover outward, then the assembling of gas-filled type monotubular shock absorber is carried out according to the following steps: first be (1) welded suspension ring and fuel tank sub-assembly one, (2) will fluctuate cylinder and fix cylinder up and down and back to square one, more vertically be put on Workpiece fixing seat by workpiece fuel tank sub-assembly, open lower floating cylinder, make fuel tank oral area external diameter and multi-functional guide pin bushing minor diameter fit, it is made to reach sealing effect by multi-functional guide pin bushing inner diameter seal circle, workpiece floating piston is loaded in multi-functional guide pin bushing, workpiece guider oil sealing sub-assembly is inserted on workpiece piston rod sub-assembly connecting rod, workpiece piston rod sub-assembly is put into multi-functional guide pin bushing, open lower fixing cylinder by workpiece fuel tank and multi-functional guide pin bushing upper top together, make workpiece floating piston bar between the upper pouring orifice and lower inflation inlet of multi-functional guide pin bushing, namely inflation inlet is kept to be communicated with fuel tank, and disconnect being communicated with of pouring orifice and fuel tank, and make workpiece piston rod sub-assembly withstand floating cylinder piston head, in workpiece fuel tank sub-assembly, nitrogen is filled with by the inflation inlet of multi-functional guide pin bushing, (3) first start upper fixing cylinder, by in workpiece piston rod sub-assembly and workpiece floating piston press-in workpiece fuel tank sub-assembly, by pouring orifice toward oiling in workpiece fuel tank sub-assembly, after oiling completes, workpiece guider oil sealing sub-assembly and upper lower circlip are loaded in multi-functional guide pin bushing in order, and load onto workpiece guider oil seal pressing cover, (4) open upper floating cylinder, arrive desired location, all cylinder returns by piston rod guide oil seal pressing cover by workpiece guider oil sealing sub-assembly press-in workpiece fuel tank sub-assembly, take out guider oil seal pressing cover, assembly process completes, and takes out product.
In assembly equipment special described in the present invention, four cylinders and multi-functional guide pin bushing are coaxial installation.
Assembly equipment special described in the present invention is provided with convex pressure head in upper floating cylinder piston rod front end, to facilitate guider oil seal pressing cover of exerting pressure.
In assembly equipment special described in the present invention, described guider oil seal pressing cover is for columnar structured, and its sidewall has an axially open, the connecting rod diameter of A/F >=workpiece piston rod sub-assembly.
In assembly equipment special described in the present invention, its Workpiece fixing seat has " V " shape locating slot, its center line and lower floating cylinder axis coaxle are arranged.
The present invention has the following advantages: 1. concentrated in a frock (operation) by traditional three independent process and complete, and carries out three-in-one, greatly reduces equipment investment fund, enhance productivity; 2. after adopting first inflation, the technique of oiling sealing considerably reduces product reject ratio caused in the fabrication process and unnecessary production loss, avoids because piston rubber parts affects product working life by heat ageing; 3. reduce waste of human resource, by front three operator assemble 1000 products on 8 hours Working day and bring up to the assembling work that just can be completed 1000 products by an operator one at 8 hours on Working day; 4. the technique of inflating after adopting traditional type first to assemble oiling, need to be filled with 2.5MPa nitrogen, highpressure easily causes inflator tracheal rupture, reduces assembling safety coefficient.And adopt the present invention to assemble, only need to be filled with 0.3MPa nitrogen, then through press-in piston rod sub-assembly, compression is carried out to gas and just can reach inflation requirement.
Accompanying drawing explanation
Fig. 1 is gas-filled type monotubular shock absorber structural representation;
Fig. 2 is the schematic diagram of the special assembly equipment working state one of the present invention;
Fig. 3 is the schematic diagram of the special assembly equipment working state two of the present invention;
Fig. 4 is the schematic diagram of the special assembly equipment working state three of the present invention;
Fig. 5 is the plan view of guider oil seal pressing cover.
In figure: 1-suspension ring, 2-floating piston, 3-piston sub-assembly, 4-fuel tank sub-assembly, 5-connecting rod, 6-guider oil sealing sub-assembly, 7-above fix cylinder, 8-upper cylinder frame, 9-upper die plate, 10-upper floating cylinder, 11-convex pressure head, 12-column, 13-multi-functional guide pin bushing, 14-sleiding form, 15-connecting rod, 16-Workpiece fixing seat, 17-lower floating cylinder, 18-lower cylinder frame, 19-base, 20-lower fixing cylinder, 21-guider oil seal pressing cover, 22-axially open.
Embodiment
See Fig. 1, this is the structure after gas-filled type monotubular shock absorber typical case general assembly, it is by suspension ring 1, floating piston 2, piston sub-assembly 3, fuel tank sub-assembly 4, connecting rod 5, guider oil sealing sub-assembly 6 assembles, its assembly technique is: a first special assembly equipment, it has a base 19, base 19 is provided with four root posts 12, the top of four root posts 12 is installed with upper die plate 9, sleiding form 14 is equipped with in the stage casing of four root posts 12, the middle part of sleiding form 14 is provided with multi-functional guide pin bushing 13, multi-functional guide pin bushing 13 has, the pouring orifice of lower dislocation and inflation inlet, the lower end of multi-functional guide pin bushing 13 is also provided with seal ring, be provided with at the middle part of upper die plate 9 and fix cylinder 7, its piston rod head is arranged downwards, and by upper cylinder frame 8, floating cylinder 10 is housed at piston rod head, and the head of upper floating cylinder 10 is arranged equally downwards, base 19 is provided with lower fixing cylinder 20, and its piston rod head is equipped with lower cylinder frame 18, upwards arranges, the upper end that lower cylinder frame 18 is provided with lower floating cylinder 17 and four connecting rods, 15, four connecting rods 15 is fixedly connected with sleiding form 14, the piston crown of lower floating cylinder 17 is upwards arranged, and is provided with Workpiece fixing seat 16 at the piston crown of lower floating cylinder 17, is furnished with a guider oil seal pressing cover 21 outward, then the assembling of gas-filled type monotubular shock absorber is carried out according to the following steps: first be (1) welded suspension ring 1 and fuel tank sub-assembly 4 one, (2) will fluctuate cylinder 17 and fix cylinder 20 up and down and back to square one, then workpiece fuel tank sub-assembly 4 is vertically put on Workpiece fixing seat 16, see Fig. 2, opens lower floating cylinder 17, makes fuel tank oral area external diameter and multi-functional guide pin bushing minor diameter fit, it is made to reach sealing effect by multi-functional guide pin bushing 13 inner diameter seal circle, workpiece floating piston 2 is loaded in multi-functional guide pin bushing 13, guider oil sealing sub-assembly 6 is inserted on piston rod sub-assembly 3 connecting rod, workpiece piston rod sub-assembly 3 is put into multi-functional guide pin bushing 13, open lower fixing cylinder 20 by workpiece fuel tank and multi-functional guide pin bushing 13 upper top together, make workpiece piston rod between the upper pouring orifice and lower inflation inlet of multi-functional guide pin bushing 13, namely inflation inlet is kept to be communicated with fuel tank, and disconnect being communicated with of pouring orifice and fuel tank, and make workpiece piston rod sub-assembly 3 withstand floating cylinder piston head, in workpiece fuel tank sub-assembly 4, nitrogen is filled with by the inflation inlet of multi-functional guide pin bushing 13, (3) first start upper fixing cylinder 7, workpiece piston rod sub-assembly 3 and workpiece floating piston 2 are pressed in workpiece fuel tank sub-assembly 4, see Fig. 3, by pouring orifice toward oiling in workpiece fuel tank sub-assembly 4, after oiling completes, workpiece guider oil sealing sub-assembly 6 and upper lower circlip are loaded in multi-functional guide pin bushing 13 in order, and load onto workpiece guider oil seal pressing cover 21, (4) open upper floating cylinder 10, workpiece guider oil sealing sub-assembly 6 is pressed into arrival desired location in workpiece fuel tank sub-assembly 4, see Fig. 4 by piston rod guide oil seal pressing cover 21, all cylinder returns, take out guider oil seal pressing cover 21, assembly process completes, and takes out product.
In assembly equipment special described in the present embodiment, four cylinders and multi-functional guide pin bushing 13 are coaxial installation.
Assembly equipment special described in the present embodiment is provided with convex pressure head 11 in upper floating cylinder 10 piston rod front end, to facilitate guider oil seal pressing cover 21 of exerting pressure.
In assembly equipment special described in the present embodiment, described guider oil seal pressing cover 21 is columnar structured, its sidewall has an axially open 22, see Fig. 5, the connecting rod diameter of A/F >=workpiece piston rod sub-assembly (generally get be greater than 1-2mm best, be set with through connecting rod to facilitate guider oil seal pressing cover).
In assembly equipment special described in the present embodiment, its Workpiece fixing seat 16 has " V " shape locating slot, its center line and lower floating cylinder 17 axis coaxle are arranged.
Claims (5)
1. the assembly method of a gas-filled type monotubular shock absorber, it is characterized in that: a first special assembly equipment, it has a base, base is provided with four root posts, the top of four root posts is installed with upper die plate, and sleiding form is equipped with in the stage casing of four root posts, and the middle part of sleiding form is provided with multi-functional guide pin bushing, multi-functional guide pin bushing has pouring orifice and the inflation inlet of upper and lower dislocation, and the lower end of multi-functional guide pin bushing is also provided with seal ring, be provided with at the middle part of upper die plate and fix cylinder, its piston rod head is arranged downwards, and by cylinder frame, floating cylinder is housed at piston rod head, and the head of upper floating cylinder is arranged equally downwards, base is provided with lower fixing cylinder, and its piston rod head is equipped with lower cylinder frame upwards to be arranged, lower cylinder frame is provided with lower floating cylinder and four connecting rods, and the upper end of four connecting rods is fixedly connected with sleiding form, the piston crown of lower floating cylinder is upwards arranged, and is provided with Workpiece fixing seat at the piston crown of lower floating cylinder, is furnished with a guider oil seal pressing cover outward, then the assembling of gas-filled type monotubular shock absorber is carried out according to the following steps: first be (1) welded suspension ring and fuel tank sub-assembly one, (2) will fluctuate cylinder and fix cylinder up and down and back to square one, more vertically be put on Workpiece fixing seat by workpiece fuel tank sub-assembly, open lower floating cylinder, make fuel tank oral area external diameter and multi-functional guide pin bushing minor diameter fit, it is made to reach sealing effect by multi-functional guide pin bushing inner diameter seal circle, workpiece floating piston is loaded in multi-functional guide pin bushing, workpiece guider oil sealing sub-assembly is inserted on workpiece piston rod sub-assembly connecting rod, workpiece piston rod sub-assembly is put into multi-functional guide pin bushing, open lower fixing cylinder by workpiece fuel tank and multi-functional guide pin bushing upper top together, make workpiece floating piston bar between the upper pouring orifice and lower inflation inlet of multi-functional guide pin bushing, namely inflation inlet is kept to be communicated with fuel tank, and disconnect being communicated with of pouring orifice and fuel tank, and make workpiece piston rod sub-assembly withstand floating cylinder piston head, in workpiece fuel tank sub-assembly, nitrogen is filled with by the inflation inlet of multi-functional guide pin bushing, (3) first start upper fixing cylinder, by in workpiece piston rod sub-assembly and workpiece floating piston press-in workpiece fuel tank sub-assembly, by pouring orifice toward oiling in workpiece fuel tank sub-assembly, after oiling completes, workpiece guider oil sealing sub-assembly and upper lower circlip are loaded in multi-functional guide pin bushing in order, and load onto workpiece guider oil seal pressing cover, (4) open upper floating cylinder, arrive desired location, all cylinder returns by piston rod guide oil seal pressing cover by workpiece guider oil sealing sub-assembly press-in workpiece fuel tank sub-assembly, take out guider oil seal pressing cover, assembly process completes, and takes out product.
2. the assembly method of a kind of gas-filled type monotubular shock absorber according to claim 1, is characterized in that: in described special assembly equipment, and four cylinders and multi-functional guide pin bushing are coaxial installation.
3. the assembly method of a kind of gas-filled type monotubular shock absorber according to claim 1, is characterized in that: described special assembly equipment is provided with convex pressure head in upper floating cylinder piston rod front end, to facilitate guider oil seal pressing cover of exerting pressure.
4. the assembly method of a kind of gas-filled type monotubular shock absorber according to claim 1, it is characterized in that: in described special assembly equipment, described guider oil seal pressing cover is for columnar structured, and its sidewall has an axially open, the connecting rod diameter of A/F >=workpiece piston rod sub-assembly.
5. the assembly method of a kind of gas-filled type monotubular shock absorber according to claim 1, is characterized in that: in described special assembly equipment, its Workpiece fixing seat has " V " shape locating slot, and its center line and lower floating cylinder axis coaxle are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562872.7A CN104405810B (en) | 2014-10-22 | 2014-10-22 | A kind of assembly method of inflatable monotubular shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410562872.7A CN104405810B (en) | 2014-10-22 | 2014-10-22 | A kind of assembly method of inflatable monotubular shock absorber |
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| CN104405810A true CN104405810A (en) | 2015-03-11 |
| CN104405810B CN104405810B (en) | 2016-05-18 |
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| CN201410562872.7A Expired - Fee Related CN104405810B (en) | 2014-10-22 | 2014-10-22 | A kind of assembly method of inflatable monotubular shock absorber |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729096A (en) * | 2016-05-09 | 2016-07-06 | 深圳市铭利达精密机械有限公司 | Device for mounting circlip |
| CN108180249A (en) * | 2018-01-05 | 2018-06-19 | 深圳市新沧海机械有限公司 | Inflate flanger |
| CN111503209A (en) * | 2020-06-03 | 2020-08-07 | 锦州立德减振器有限公司 | Shock absorber inflation and necking-in integrated machine |
| CN112122905A (en) * | 2020-09-08 | 2020-12-25 | 安徽千禧精密轴承制造有限公司 | Ceramic carrier roller pressing sleeve device |
| CN114526305A (en) * | 2022-02-14 | 2022-05-24 | 中船重工鹏力（南京）智能装备系统有限公司 | Automatic inflation pre-sealing device and method for automobile shock absorber |
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| CN203344000U (en) * | 2013-07-12 | 2013-12-18 | 上海汇众汽车车桥系统有限公司 | Improved shock absorber assembly tool |
| CN203477154U (en) * | 2013-10-15 | 2014-03-12 | 浙江亚之星汽车部件有限公司 | Single-cylinder high-pressure vibration reduction column-type shock absorber |
| CN103909406A (en) * | 2014-03-19 | 2014-07-09 | 常州朗锐凯迩必减振技术有限公司 | Tightening device for hydraulic shock absorber assembly |
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| JP2004232653A (en) * | 2003-01-28 | 2004-08-19 | Kayaba Ind Co Ltd | Single cylinder type hydraulic shock absorber |
| CN101101032A (en) * | 2006-07-06 | 2008-01-09 | 浙江正裕工业有限公司 | Single-cylinder aerating package process and package device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105729096A (en) * | 2016-05-09 | 2016-07-06 | 深圳市铭利达精密机械有限公司 | Device for mounting circlip |
| CN105729096B (en) * | 2016-05-09 | 2018-03-20 | 深圳市铭利达精密机械有限公司 | One kind is used for device for installing clamp spring |
| CN108180249A (en) * | 2018-01-05 | 2018-06-19 | 深圳市新沧海机械有限公司 | Inflate flanger |
| CN108180249B (en) * | 2018-01-05 | 2023-11-21 | 深圳市新沧海机械有限公司 | Inflatable flanging machine |
| CN111503209A (en) * | 2020-06-03 | 2020-08-07 | 锦州立德减振器有限公司 | Shock absorber inflation and necking-in integrated machine |
| CN111503209B (en) * | 2020-06-03 | 2024-02-13 | 锦州立德减振器有限公司 | Vibration damper inflation and closing-in integrated machine |
| CN112122905A (en) * | 2020-09-08 | 2020-12-25 | 安徽千禧精密轴承制造有限公司 | Ceramic carrier roller pressing sleeve device |
| CN114526305A (en) * | 2022-02-14 | 2022-05-24 | 中船重工鹏力（南京）智能装备系统有限公司 | Automatic inflation pre-sealing device and method for automobile shock absorber |
| CN114526305B (en) * | 2022-02-14 | 2023-04-07 | 中船重工鹏力（南京）智能装备系统有限公司 | Automatic inflation pre-sealing device and method for automobile shock absorber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104405810B (en) | 2016-05-18 |
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