CN109210114B - Pre-sticking positioning device for drum brake pad - Google Patents
Pre-sticking positioning device for drum brake pad Download PDFInfo
- Publication number
- CN109210114B CN109210114B CN201811159464.1A CN201811159464A CN109210114B CN 109210114 B CN109210114 B CN 109210114B CN 201811159464 A CN201811159464 A CN 201811159464A CN 109210114 B CN109210114 B CN 109210114B
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- China
- Prior art keywords
- positioning
- arc
- plate
- shoe
- baffle
- Prior art date
- 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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Links
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims description 22
- 239000000853 adhesive Substances 0.000 claims description 7
- 230000001070 adhesive effect Effects 0.000 claims description 7
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D69/0416—Attachment of linings specially adapted for curved linings
-
- 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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
- F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
- F16D69/04—Attachment of linings
- F16D2069/0425—Attachment methods or devices
- F16D2069/045—Bonding
- F16D2069/0466—Bonding chemical, e.g. using adhesives, vulcanising
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a pre-sticking positioning device of a drum brake block, which comprises a shoe positioning mechanism and a lining positioning mechanism; the shoe positioning mechanism comprises a positioning base plate which can provide support for the arc end face of the shoe arc plate, a positioning vertical plate which is arranged on the positioning base plate and used for supporting and positioning the shoe rib plate, and a positioning body which can provide positioning for the shoe arc plate in the front-back direction; the lining positioning mechanism comprises a bottom positioning assembly and a side positioning assembly, the bottom positioning assembly is correspondingly arranged on the outer side of a preset arc-shaped plate, and a positioning supporting surface which is level with the bonding initial position of the lower side of the friction lining is arranged in the bottom positioning assembly; the side positioning assembly is arranged on the positioning substrate, a positioning baffle plate is arranged in the side positioning assembly, and the positioning baffle plate can be locked and fixed when the end part of the positioning baffle plate extends to the side surface bonding initial position of the arc-shaped plate and the friction lining. The invention can solve the problems that the bonding position of the friction lining of the drum brake pad in the prior art cannot be effectively ensured and the interchangeability is low.
Description
Technical Field
The invention relates to the field of drum brake block production, in particular to a pre-sticking positioning device of a drum brake block.
Background
As shown in fig. 1, the drum brake 5 includes a shoe 52 and a friction lining 51, and the shoe 52 is usually composed of an arc 522 and a rib 521 fixed on the inner side of the arc 522, and the friction lining 51 is fixed on the outer side of the shoe arc 522. The existing drum brake pad production enterprises are numerous, but the production modes are basically similar, the connection modes between the arc-shaped plates and the friction linings of the drum brake pad are mostly bonding, however, because the widths of the friction linings and the arc-shaped plates are different and the arc lengths are different, and the arc-shaped plates are not provided with a positioning device, accurate positioning is difficult to obtain in the bonding process of the friction linings, the position accuracy of the friction linings can only be ensured by naked eyes, the interchangeability of the drum brake pad is seriously influenced, and therefore, the pre-bonding positioning device of the drum brake pad is required to be designed to reduce the production difficulty of the drum brake pad, and the yield and interchangeability of the drum brake pad are improved.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a pre-adhesive positioning device for drum brake pads, which is used for solving the problems of the prior art that the bonding position of friction linings of the drum brake pads cannot be effectively ensured, and the yield and interchangeability are low.
To achieve the above and other related objects, the present invention provides a pre-adhesive positioning device for a drum brake pad, including a shoe positioning mechanism and a lining positioning mechanism; the shoe positioning mechanism comprises a positioning base plate capable of providing support for the arc end face of the shoe arc plate, a positioning vertical plate arranged on the positioning base plate and used for supporting and positioning the shoe rib plate, and a positioning body used for providing front-back direction positioning for the shoe arc plate; the lining positioning mechanism comprises a bottom positioning assembly and a side positioning assembly, wherein the bottom positioning assembly is correspondingly arranged on the outer side of a preset arc-shaped plate position, and a positioning supporting surface which is level with the lower side bonding initial position of the friction lining is arranged in the bottom positioning assembly; the side positioning assembly is arranged on the positioning substrate, a positioning baffle plate is arranged in the side positioning assembly, and the positioning baffle plate can be locked and fixed when the end part of the positioning baffle plate extends to the side surface bonding initial position of the arc-shaped plate and the friction lining.
Preferably, the positioning body is the positioning baffle.
Preferably, the side positioning assembly comprises a positioning baffle seat, a baffle seat locking device and a baffle locking device, wherein the positioning baffle seat is rotatably installed on the positioning substrate and can be locked and fixed through the baffle seat locking device, and the positioning baffle is installed on the positioning baffle seat in a linear moving way and can be locked and fixed on the baffle seat through the baffle locking device.
Preferably, the bottom positioning assembly comprises a supporting plate and a positioning support body, the supporting plate is installed below the positioning substrate, a track through hole matched with the positioning support body is formed in the positioning substrate, the bottom surface of the positioning support body is propped against the upper plane of the supporting plate, and a positioning support surface on the upper portion of the support body penetrates through the track through hole and stretches out to the upper portion of the positioning substrate.
Further, the positioning support body has magnetic properties and can be adsorbed on the pallet.
Further, the distance between the supporting plate and the positioning substrate is adjustable.
Preferably, the pre-sticking positioning device of the drum brake pad further comprises a pressing mechanism capable of pressing the friction lining on the arc-shaped plate.
Further, the compressing mechanism comprises a linear movement driving device and a compressing body hinged at the driving end of the linear movement driving device.
Further, the pressing body is an arc-shaped connecting rod, the middle part of the arc-shaped connecting rod is hinged with the driving end of the linear movement driving device, cylindrical pressing bodies are arranged at two ends of the arc-shaped connecting rod, and the axes of the pressing bodies are parallel to the axes of the arc-shaped plates.
Further, a nylon sleeve is sleeved outside the pressing body.
When the shoe is used, the shoe is firstly placed on the positioning substrate (the arc-shaped end face of the arc-shaped plate faces downwards), the rib plate of the shoe is abutted against the positioning vertical plate, then the shoe is pushed to be abutted against the positioning body along the positioning vertical plate to be positioned, the arc-shaped end face of the friction lining faces downwards to be placed on the positioning supporting surface, the side end face of the friction lining is adjusted to be abutted against the positioning baffle to be positioned, and the friction lining is pressed on the outer side face of the arc-shaped plate of the shoe along the positioning baffle and the positioning supporting surface to accurately realize bonding positioning. Based on the working process, the invention has the following beneficial effects: the invention can effectively solve the problem that the friction lining cannot be accurately positioned on the shoe arc plate, and the shoe and the friction lining do not need complex installation in the positioning process, do not need special clamps, can be positioned by pushing the shoe and the friction lining in place, and have high efficiency and convenient operation.
Drawings
FIG. 1 is a three-dimensional block diagram of an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of the present invention;
fig. 3 is a top view of fig. 2.
In the figure: 11. positioning a vertical plate; 12. positioning a substrate; 21. a baffle seat locking device; 22. a baffle locking device; 23. positioning a baffle seat; 24. positioning a baffle; 31. a pressing body; 32. a pressing body; 33. a rotating shaft; 34. a cylinder; 41. a track through hole; 42. positioning a supporting body; 43. a supporting plate; 44. a bolt; 421. positioning a supporting surface; 5. drum brake pad; 51. a friction lining; 52. a shoe; 521. rib plates; 522. arc-shaped plate
Detailed Description
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present invention, and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present invention, should be understood as falling within the scope of the present invention. Also, the terms such as "upper", "lower", "front", "rear", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the invention for which the invention may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
1-3, the invention provides a pre-sticking positioning device of a drum brake pad, which comprises a shoe positioning mechanism and a lining positioning mechanism; the shoe positioning mechanism comprises a positioning base plate 12 capable of providing support for the arc end surface of the shoe 52 arc plate 522, a positioning vertical plate 11 arranged on the positioning base plate 12 for the shoe 52 rib plate 521 to be abutted against for positioning, and a positioning body (a positioning baffle 24 described below in the embodiment) for providing positioning of the shoe 52 arc plate 522 in the front-back direction, wherein the front-back direction refers to the moving direction of the shoe 52 along the positioning vertical plate 11; the lining positioning mechanism comprises a bottom positioning component and a side positioning component, wherein the bottom positioning component is correspondingly arranged on the outer side of the preset arc plate 522, and a positioning supporting surface 421 which is level with the bonding initial position of the lower side of the friction lining 51 is arranged in the bottom positioning component; the side positioning assembly is mounted on the positioning base plate 12, and a positioning baffle 24 is arranged in the side positioning assembly, and the positioning baffle 24 can be locked and fixed when the end part extends to the side surface bonding starting position of the arc plate 522 and the friction lining 51.
When the invention is used, firstly, the shoe 52 is placed on the positioning substrate 12 (the arc-shaped end face of the arc-shaped plate 522 faces downwards), the rib plate 521 of the shoe 52 is abutted against the positioning vertical plate 11, then the shoe 52 is pushed to be abutted against the positioning body (the positioning baffle 24) along the positioning vertical plate 11 for positioning, the arc-shaped end face of the friction lining 51 is placed downwards on the positioning support surface 421, the side end face of the friction lining 51 is adjusted to be abutted against the positioning baffle 24 for positioning, and the friction lining 51 is pressed on the outer side face of the arc-shaped plate 522 of the shoe 52 by moving along the positioning baffle 24 and the positioning support surface 421, so that the bonding positioning can be accurately realized. The invention can effectively solve the problem that the friction lining 51 cannot be accurately positioned on the arc-shaped plate 522 of the shoe 52, and the shoe 52 and the friction lining 51 do not need to be mounted in a complex manner in the positioning process, and the positioning can be realized by pushing the shoe 52 and the friction lining 51 in place without using a special clamp, so that the efficiency is high and the operation is convenient.
The positioning body in the present invention may be provided separately as long as it is capable of positioning the shoe 52 in the front-rear direction, and the positioning body in the present embodiment is the positioning baffle 24 in consideration that the end of the positioning baffle 24 may also serve as a positioning reference for the shoe 52 in the front-rear direction.
The side positioning assembly in the present invention is only required to extend the end of the positioning baffle 24 to the initial position of bonding the arc 522 and the side of the friction lining 51, and the other structures are not limited in principle, but considering that the side positioning assembly can be applied to drum brake pads 5 with different specifications, the side positioning assembly in this embodiment includes a positioning baffle seat 23, a bolt 21 (i.e. baffle seat locking device 21), and a bolt 22 (baffle locking device), the positioning baffle seat 23 is rotatably mounted on the positioning substrate 12 by the bolt 21 and can be screwed and fixed on the positioning substrate 12 by the bolt 21, the positioning baffle seat 23 is provided with a positioning baffle slot, and the positioning baffle 24 is linearly movably mounted in the positioning baffle slot on the positioning baffle seat 23 and can be tightly pressed and fixed by the bolt 22.
Considering that the heights and positions of the positioning support surfaces 421 of the drum brake pads 5 of different specifications may be different, in this embodiment, the bottom positioning assembly includes a supporting plate 43 and a positioning support body 42, the supporting plate 43 is installed below the positioning substrate 12, the positioning substrate 12 is provided with a track through hole 41 matched with the positioning support body 42, the bottom surface of the positioning support body 42 is abutted against the upper plane of the supporting plate 43, and the positioning support surface 421 on the upper part of the support body extends above the positioning substrate 12 through the track through hole 41. This structure can move the positioning support body 42 to a proper position along the rail through hole 41 according to the model of the drum brake pad 5, and is convenient and quick.
The positioning support 42 in this embodiment has magnetic properties that can be attracted to the pallet 43.
In this embodiment, the supporting plate 43 is mounted on the positioning substrate 12 through the bolts 44, the positioning substrate 12 is provided with a through hole, the supporting plate 43 is provided with a threaded hole, the small end of the bolts passes through the through hole and then is in threaded connection with the threaded hole, and the distance between the supporting plate 43 and the positioning substrate 12 can be adjusted by screwing the bolts 44.
In the present invention, the friction lining 51 may be pressed against the shoe 52 manually, but in consideration of the requirement of automation, the pre-adhesion positioning device of the drum brake pad in this embodiment further includes a pressing mechanism capable of pressing the friction lining 51 against the arc 522. The compressing mechanism comprises an air cylinder 34 and a compressing body 31 hinged at the driving end of the air cylinder 34 through a rotating shaft 33. The pressing body 31 is an arc-shaped connecting rod, the middle part of the arc-shaped connecting rod is hinged with the driving end of the air cylinder 34 through a rotating shaft 33, two ends of the arc-shaped connecting rod are provided with cylindrical pressing bodies 32, and the axes of the pressing bodies 32 are parallel to the axes of the arc-shaped plates 522. The outside of the pressing body 32 is sleeved with a nylon sleeve (not shown in the figure).
In summary, the invention can effectively solve the problem that the friction lining cannot be accurately positioned on the shoe arc plate, and the shoe and the friction lining do not need to be mounted in a complicated way in the positioning process, and the special clamp is not needed, so that the positioning can be realized by pushing the shoe and the friction lining in place, and the invention has high efficiency and convenient operation. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. The present invention is capable of modifications in the foregoing embodiments, as obvious to those skilled in the art, without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (8)
1. The pre-sticking positioning device of the drum brake block comprises a shoe and a friction lining, wherein the shoe comprises an arc-shaped plate and a rib plate fixed on the inner side of the arc-shaped plate, and the pre-sticking positioning device is characterized by comprising a shoe positioning mechanism and a lining positioning mechanism; the shoe positioning mechanism comprises a positioning base plate capable of providing support for the arc end face of the arc-shaped plate, a positioning vertical plate arranged on the positioning base plate and used for supporting and positioning the rib plate, and a positioning body used for providing positioning in the front-back direction for the arc-shaped plate; the lining positioning mechanism comprises a bottom positioning assembly and a side positioning assembly, the bottom positioning assembly is correspondingly arranged on the outer side of a preset arc-shaped plate position, and the bottom positioning assembly comprises a positioning supporting surface which is leveled with the bonding initial position of the lower side of the friction lining; the side positioning assembly is arranged on the positioning substrate and comprises a positioning baffle plate, and the positioning baffle plate is used for positioning the initial position of the side surface bonding of the arc-shaped plate and the friction lining; wherein the positioning body is the positioning baffle plate; the pre-sticking positioning device further comprises a pressing mechanism capable of pressing the friction lining on the arc-shaped plate; the front-back direction refers to the direction in which the shoe moves along the positioning vertical plate.
2. The pre-adhesive positioning device according to claim 1, wherein the side positioning assembly comprises a positioning baffle seat, a baffle seat locking device and a baffle locking device, the positioning baffle seat is rotatably installed on the positioning substrate and can be locked and fixed by the baffle seat locking device, and the positioning baffle is installed on the positioning baffle seat in a linear moving way and can be locked and fixed on the baffle seat by the baffle locking device.
3. The pre-sticking positioning device according to claim 1, wherein the bottom positioning assembly comprises a supporting plate and a positioning support body, the supporting plate is installed below the positioning substrate, a track through hole matched with the positioning support body is formed in the positioning substrate, the bottom surface of the positioning support body is propped against the upper plane of the supporting plate, and the positioning support surface on the upper part of the support body extends to the upper part of the positioning substrate through the track through hole.
4. A pre-adhesive positioning device according to claim 3, wherein the positioning support has magnetic properties that are attracted to the pallet.
5. A pre-adhesive positioning device according to claim 3, wherein the distance between the pallet and the positioning substrate is adjustable.
6. The pre-adhesive positioning device according to claim 1, wherein the pressing mechanism comprises a linear movement driving device and a pressing body hinged at a driving end of the linear movement driving device.
7. The pre-sticking positioning device according to claim 6, wherein the pressing body is an arc-shaped connecting rod, the middle part of the arc-shaped connecting rod is hinged with the driving end of the linear movement driving device, two ends of the arc-shaped connecting rod are provided with cylindrical pressing bodies, and the axes of the pressing bodies are parallel to the axes of the arc-shaped plates.
8. The pre-adhesive positioning device according to claim 7, wherein the outer part of the pressing body is sleeved with a nylon sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159464.1A CN109210114B (en) | 2018-09-30 | 2018-09-30 | Pre-sticking positioning device for drum brake pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811159464.1A CN109210114B (en) | 2018-09-30 | 2018-09-30 | Pre-sticking positioning device for drum brake pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109210114A CN109210114A (en) | 2019-01-15 |
| CN109210114B true CN109210114B (en) | 2024-03-01 |
Family
ID=64982920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811159464.1A Active CN109210114B (en) | 2018-09-30 | 2018-09-30 | Pre-sticking positioning device for drum brake pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109210114B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305388A (en) * | 1991-03-29 | 1992-10-28 | Topy Ind Ltd | Structure for assembling disk and rim |
| JP2000104771A (en) * | 1998-09-28 | 2000-04-11 | Nippon Brake Kogyo Kk | Manufacture of brake shoe and device therefor |
| CN201078422Y (en) * | 2007-07-12 | 2008-06-25 | 德尔福（上海）动力推进系统有限公司 | Sticking clamping tool work bench for drum brake shoe |
| CN203730485U (en) * | 2013-12-18 | 2014-07-23 | 重庆朗锐摩擦材料有限公司 | Bonding platform for drum brake pad production |
| CN104595389A (en) * | 2015-01-31 | 2015-05-06 | 安徽贵达汽车部件有限公司 | Rotary adjustable brake horseshoe |
| CN204436981U (en) * | 2015-01-21 | 2015-07-01 | 浙江理工大学 | A kind of brake block Automatic-clamping tripping-gear based on cam slide |
| CN106763369A (en) * | 2017-02-10 | 2017-05-31 | 重庆机电智能制造有限公司 | A kind of motor vehicle brake shoe assembly bonding jig |
| CN206617474U (en) * | 2016-12-12 | 2017-11-07 | 浙江亚太机电股份有限公司 | A kind of self-boosting type drum brake with clearance self-regulating mechanism device |
| CN108533652A (en) * | 2017-03-01 | 2018-09-14 | 高邮市精正机械制造有限公司 | A kind of brake block cementing machine of drum brakes |
| CN209196019U (en) * | 2018-09-30 | 2019-08-02 | 山东金麒麟股份有限公司 | Drum brakes liner and shoes pre-bonding positioning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012104666A1 (en) * | 2012-05-30 | 2013-12-05 | Tmd Friction Services Gmbh | Drum brake shoe |
-
2018
- 2018-09-30 CN CN201811159464.1A patent/CN109210114B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04305388A (en) * | 1991-03-29 | 1992-10-28 | Topy Ind Ltd | Structure for assembling disk and rim |
| JP2000104771A (en) * | 1998-09-28 | 2000-04-11 | Nippon Brake Kogyo Kk | Manufacture of brake shoe and device therefor |
| CN201078422Y (en) * | 2007-07-12 | 2008-06-25 | 德尔福（上海）动力推进系统有限公司 | Sticking clamping tool work bench for drum brake shoe |
| CN203730485U (en) * | 2013-12-18 | 2014-07-23 | 重庆朗锐摩擦材料有限公司 | Bonding platform for drum brake pad production |
| CN204436981U (en) * | 2015-01-21 | 2015-07-01 | 浙江理工大学 | A kind of brake block Automatic-clamping tripping-gear based on cam slide |
| CN104595389A (en) * | 2015-01-31 | 2015-05-06 | 安徽贵达汽车部件有限公司 | Rotary adjustable brake horseshoe |
| CN206617474U (en) * | 2016-12-12 | 2017-11-07 | 浙江亚太机电股份有限公司 | A kind of self-boosting type drum brake with clearance self-regulating mechanism device |
| CN106763369A (en) * | 2017-02-10 | 2017-05-31 | 重庆机电智能制造有限公司 | A kind of motor vehicle brake shoe assembly bonding jig |
| CN108533652A (en) * | 2017-03-01 | 2018-09-14 | 高邮市精正机械制造有限公司 | A kind of brake block cementing machine of drum brakes |
| CN209196019U (en) * | 2018-09-30 | 2019-08-02 | 山东金麒麟股份有限公司 | Drum brakes liner and shoes pre-bonding positioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109210114A (en) | 2019-01-15 |
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