CN216115806U - Brake block testing fixture - Google Patents
Brake block testing fixture Download PDFInfo
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- CN216115806U CN216115806U CN202122283641.0U CN202122283641U CN216115806U CN 216115806 U CN216115806 U CN 216115806U CN 202122283641 U CN202122283641 U CN 202122283641U CN 216115806 U CN216115806 U CN 216115806U
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- brake pad
- supporting surface
- sliding rod
- support
- measuring instrument
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Abstract
The utility model discloses a brake block checking fixture, which comprises: the top of the support is provided with an arc-shaped supporting surface, and the supporting surface is used for placing a brake pad; the guide structure can be connected to the support in a relatively rotating manner and comprises a sliding rod positioned above the supporting surface, and two ends of the sliding rod can be connected with two ends of the support corresponding to the sliding rod in a relatively rotating manner along the circumferential direction of the supporting surface; the measuring structure comprises a measuring instrument which is connected to the sliding rod in a relatively sliding manner, and the measuring instrument is positioned above the brake pad and is in contact with the outer peripheral wall of the brake pad; the measuring instrument slides along the sliding rod under the action of external force or is driven by the sliding rod to rotate around the circumferential direction of the supporting surface so as to measure the cylindricity or the radius of the brake pad, namely, the measuring instrument moves along a correct measuring track under the guidance of the sliding rod when being subjected to the external force, so that the measuring instrument is ensured to move along the correct measuring track all the time, and the aim of accurately measuring the cylindricity or the radius of the brake pad is fulfilled.
Description
Technical Field
The utility model relates to the technical field of automobile part measurement, in particular to a brake pad gauge.
Background
When the cylindricity and the radius of the brake pad of the automobile drum brake are measured, the brake pad gauge is required to be used for measuring. The existing brake block detection tool comprises a measuring table, a movable frame arranged on the measuring table and a measuring instrument fixed on the movable frame, wherein the measuring table is provided with an arc-shaped supporting surface used for supporting a brake block, the movable frame can move along the circumferential direction and the axial direction of the supporting surface, when the cylindricity of the brake block is measured, an operator manually moves the movable frame to enable the measuring instrument to move along the axial direction of the brake block, and when the radius of the brake block is measured, the operator manually moves the movable frame to enable the measuring instrument to move along the circumferential direction of the brake block. However, the movable frame is easily deviated from the normal measuring track during the manual movement of the movable frame by an operator, so that the measuring instrument is deviated from the normal measuring track, and the cylindricity and radius of the brake pad are measured inaccurately.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model aims to provide a brake pad gauge with high measurement precision.
In order to achieve the purpose, the utility model adopts the following technical scheme:
utensil is examined to brake block includes: the top of the support is provided with an arc-shaped supporting surface, and the supporting surface is used for placing a brake pad; the guide structure can be connected to the support in a relatively rotating manner and comprises a sliding rod positioned above the supporting surface, and two ends of the sliding rod can be connected with two ends of the support corresponding to the sliding rod in a relatively rotating manner along the circumferential direction of the supporting surface; the measuring structure comprises a measuring instrument which is connected to the sliding rod in a relatively sliding manner, and the measuring instrument is positioned above the brake pad and is in contact with the peripheral wall of the brake pad; the measuring instrument slides along the slide bar under the action of external force or is driven by the slide bar to rotate around the circumferential direction of the supporting surface so as to measure the cylindricity or the radius of the brake pad.
Furthermore, the inside rotatable coupling of support has a pivot, the pivot is followed the axial direction of holding surface sets up, just the both ends of pivot stretch out respectively the both ends of support are out of the face and with the both ends of slide bar are connected.
Furthermore, two ends of the sliding rod are respectively and fixedly connected with a connecting plate, and the two connecting plates are respectively and fixedly connected with two ends of the pivot; the connecting plate rotates under the action of external force to drive the sliding rod to rotate, so that the measuring instrument rotates around the circumferential direction of the supporting surface to measure the radius of the brake pad.
Furthermore, the support is provided with a shaft hole which penetrates through the support along the axial direction of the supporting surface, the pivot is arranged in the shaft hole, and two ends of the pivot are respectively rotatably connected with two ends of the support through a bearing.
Furthermore, both ends of the slide bar are fixedly connected with a connecting plate respectively, the two connecting plates are connected with both ends of the support respectively, and the connecting plates are provided with a plurality of through holes distributed along the length direction of the connecting plates.
Furthermore, the measuring structure comprises a positioning seat which can be relatively slidably connected to the sliding rod, and the measuring instrument is fixed on the positioning seat; the positioning seat slides along the sliding rod to drive the measuring instrument to slide along the axial direction of the supporting surface so as to measure the cylindricity of the brake pad.
Furthermore, the number of the slide bars is two, the two slide bars are distributed along the circumferential direction of the supporting surface, the positioning seat is provided with a slide hole penetrating through the positioning seat corresponding to the two slide bars along the axial direction of the supporting surface, and the slide hole is in slide fit with the slide bars.
Further, the top of support is formed with the arc supporting part, the concave constant head tank that is equipped with the shape looks adaptation of brake block of top surface of supporting part, the constant head tank is followed the axial and the circumference of supporting part extend, just the diapire of constant head tank forms the holding surface.
Further, the brake pad comprises a reference block which is removably arranged on the supporting surface, the measuring instrument is a dial indicator, and the value of the cylindricity and the radius of the reference block measured by the dial indicator is respectively used as the qualified standard value of the cylindricity and the radius of the brake pad.
The brake pad checking fixture is provided with the sliding rod, two ends of the sliding rod can be connected with two ends of the corresponding support seat in a relatively rotating mode along the circumferential direction of the supporting surface, and the measuring instrument can be connected to the sliding rod in a relatively sliding mode, so that the measuring instrument can slide along the sliding rod under the action of external force or can be driven by the sliding rod to rotate around the circumferential direction of the supporting surface, namely, the measuring instrument moves along a correct measuring track under the guiding of the sliding rod when the measuring instrument is subjected to the external force, so that the measuring instrument can be guaranteed to move along the correct measuring track all the time, and the aim of accurately measuring the cylindricity or the radius of the brake pad is fulfilled.
Drawings
FIG. 1 is a perspective view illustrating a use state of the brake pad inspection device of the present invention;
fig. 2 is a front view of fig. 1.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 2, the utility model provides a brake pad checking fixture for measuring cylindricity and radius of a brake pad 4 of a truck or trailer drum brake, which comprises a support 1, a guide structure 2 and a measuring structure 3, wherein the guide structure 2 is connected to the support 1, and the measuring structure 3 is connected to the guide structure 2.
The top of the bracket 1 has an arc-shaped supporting surface 1111 for placing the brake pad 4, and the bracket 1 has a front end and a rear end which are oppositely arranged in a front-rear direction along the axial direction of the supporting surface 1111, wherein the shape of the supporting surface 1111 is adapted to the shape of the brake pad 4. Specifically, the top end of the support 1 is formed with an arc-shaped support part 1, the top surface of the support 1 is concavely provided with a positioning groove 111 matched with the shape of the brake pad 4, the positioning groove 111 extends along the axial direction and the circumferential direction of the support 1, and the bottom wall of the positioning groove 111 forms a support surface 1111. In this embodiment, in order to simplify the structure and save the installation space, a pivot 12 is rotatably connected to the inside of the support 1, the pivot 12 is disposed along the axial direction of the supporting surface 1111, and the front and rear ends of the pivot 12 respectively extend out of the end surfaces of the front and rear ends of the support 1 and are connected to the front and rear ends of the slide rod 21. Specifically, support 1 sets up the shaft hole 13 that runs through support 1 along the axial of holding surface 1111, and pivot 12 is located in shaft hole 13, and pivot 12 both ends around through a bearing and support 1 both ends rotatable coupling respectively, through setting up the bearing to can improve the accuracy of being connected of pivot 12 and support 1, further improve the measurement accuracy of brake block detection utensil.
The guide structure 2 is connected to the support 1 in a relatively rotatable manner, and includes two slide bars 21 located above the supporting surface 1111, and the front and rear ends of the slide bar 21 are connected to the front and rear ends of the support 1 corresponding to the support surface 1111 in a relatively rotatable manner along the circumferential direction of the supporting surface 1111. The front end and the rear end of the slide bar 21 are respectively fixedly connected with a connecting plate 22, and specifically, the front end and the rear end of the slide bar 21 are respectively in interference fit with a connecting plate 22. The two connecting plates 22 are respectively connected with the front end and the rear end of the support 1, and when the connecting plates 22 are subjected to external force, the connecting plates rotate under the external force to drive the sliding rod 21 to rotate. More specifically, the two connecting plates 22 are respectively tightly fitted with the front and rear ends of the pivot 12, and the connecting plates 22 are provided with a plurality of through holes 221 distributed along the length direction thereof, so that the weight of the connecting plates 22 is reduced by providing the through holes 221.
The measuring structure 3 comprises a measuring instrument 31 which is connected to the sliding rod 21 in a relatively sliding manner, the measuring instrument 31 is located above the brake pad 4 and is in contact with the peripheral wall of the brake pad 4, the measuring instrument 31 slides along the sliding rod 21 under the action of external force or is driven by the sliding rod 21 to rotate around the circumferential direction of the supporting surface 1111 so as to measure the cylindricity or the radius of the brake pad 4, wherein the measuring instrument 31 is a dial indicator. Specifically, when the cylindricity of the brake pad 4 is measured, the measuring instrument 31 slides along the sliding rod 21 under the action of external force, and when the radius of the brake pad 4 is measured, the measuring instrument 31 is driven by the sliding rod 21 to rotate around the circumferential direction of the supporting surface 1111, that is, when the measuring instrument 31 is subjected to the external force, the measuring instrument moves along the correct measuring track under the guidance of the sliding rod 21, so as to ensure that the measuring instrument always moves along the correct measuring track, and thus the purpose of accurately measuring the cylindricity or the radius of the brake pad 4 is achieved.
The measuring structure 3 includes a positioning seat 32 connected to the sliding rod 21 in a relatively slidable manner, the measuring instrument 31 is fixed to the positioning seat 32, specifically, a sliding hole 321 penetrating through the positioning seat 32 is formed in the positioning seat 32 corresponding to the two sliding rods 21 along the axial direction of the supporting surface 1111, and the sliding hole 321 is in sliding fit with the sliding rod 21 to realize that the measuring instrument 31 slides on the sliding rod 21. The gauge 31 is driven to slide along the axial direction of the supporting surface 1111 when the positioning seat 32 slides along the slide bar 21 to measure the cylindricity of the brake pad 4.
In order to improve the measurement accuracy, the brake pad gauge further comprises a reference block (not shown) removably arranged on the supporting surface 1111, and the dial indicator respectively takes the cylindricity and the radius value obtained by measuring the reference block as qualified standard values of the cylindricity and the radius of the brake pad 4. Of course, in other embodiments, the brake pad 4 with high dimensional accuracy may be selected as the reference block.
When the gauge is used, the reference block is placed on the supporting surface 1111, then the dial indicator is aligned to 0 through the reference block, and then the reference block is removed. When the cylindricity of a certain part of the brake pad 4 is measured, the sliding positioning seat 32 enables the positioning seat 32 to drive the dial indicator to slide along the axial direction of the brake pad 4, and whether the cylindricity of the part of the brake pad 4 is qualified or not is judged through the reading of the dial indicator. When measuring the cylindricity of another part of brake block 4, rotate connecting plate 22 in order to drive the percentage table through slide bar 21 and rotate to required angle along the circumference of brake block 4, then slide positioning seat 32 and make positioning seat 32 drive the percentage table and slide along the axial of brake block 4 in order to accomplish the cylindricity and measure. When the radius of the brake pad 4 is measured, the connecting plate 22 is rotated to drive the dial indicator to rotate to a required angle along the circumferential direction of the brake pad 4 through the slide rod 21, and whether the radius of the brake pad 4 is qualified or not is judged through the reading of the dial indicator. Therefore, the brake pad gauge is simple and convenient to operate and high in measurement accuracy when in use, and the cylindricity and the radius of the brake pad 4 can be measured only by one dial indicator, so that the use amount of the dial indicator is saved, and the production cost is further reduced.
The brake pad checking fixture is provided with the sliding rod, two ends of the sliding rod can be connected with two ends of the corresponding support seat in a relatively rotating mode along the circumferential direction of the supporting surface, and the measuring instrument can be connected to the sliding rod in a relatively sliding mode, so that the measuring instrument can slide along the sliding rod under the action of external force or can be driven by the sliding rod to rotate around the circumferential direction of the supporting surface, namely, the measuring instrument moves along a correct measuring track under the guiding of the sliding rod when the measuring instrument is subjected to the external force, so that the measuring instrument can be guaranteed to move along the correct measuring track all the time, and the aim of accurately measuring the cylindricity or the radius of the brake pad is fulfilled.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model.
Claims (9)
1. Utensil is examined to brake block, its characterized in that includes:
the top of the support is provided with an arc-shaped supporting surface, and the supporting surface is used for placing a brake pad;
the guide structure can be connected to the support in a relatively rotating manner and comprises a sliding rod positioned above the supporting surface, and two ends of the sliding rod can be connected with two ends of the support corresponding to the sliding rod in a relatively rotating manner along the circumferential direction of the supporting surface;
the measuring structure comprises a measuring instrument which is connected to the sliding rod in a relatively sliding manner, and the measuring instrument is positioned above the brake pad and is in contact with the peripheral wall of the brake pad; the measuring instrument slides along the slide bar under the action of external force or is driven by the slide bar to rotate around the circumferential direction of the supporting surface so as to measure the cylindricity or the radius of the brake pad.
2. The brake pad testing fixture according to claim 1, wherein a pivot is rotatably connected to the inside of the support, the pivot is disposed along the axial direction of the support surface, and two ends of the pivot respectively extend out of two end surfaces of the support and are connected to two ends of the sliding rod.
3. The brake pad gauge according to claim 2, wherein two ends of the slide rod are fixedly connected with a connecting plate respectively, and the two connecting plates are fixedly connected with two ends of the pivot respectively; the connecting plate rotates under the action of external force to drive the sliding rod to rotate, so that the measuring instrument rotates around the circumferential direction of the supporting surface to measure the radius of the brake pad.
4. The brake pad testing fixture of claim 2, wherein the support is provided with a shaft hole axially penetrating through the support along the supporting surface, the pivot is arranged in the shaft hole, and two ends of the pivot are rotatably connected with two ends of the support through a bearing respectively.
5. The brake pad testing fixture of claim 1, wherein two ends of the slide bar are fixedly connected with a connecting plate respectively, the two connecting plates are connected with two ends of the support respectively, and the connecting plate is provided with a plurality of through holes distributed along the length direction of the connecting plate.
6. The brake pad gauge according to claim 1, wherein the measuring structure includes a positioning seat slidably connected to the sliding rod, and the measuring instrument is fixed to the positioning seat; the positioning seat slides along the sliding rod to drive the measuring instrument to slide along the axial direction of the supporting surface so as to measure the cylindricity of the brake pad.
7. The brake pad testing fixture according to claim 6, wherein there are two of said slide bars, two of said slide bars are distributed along a circumferential direction of said supporting surface, said positioning seat is provided with a slide hole penetrating through said positioning seat along an axial direction of said supporting surface corresponding to two of said slide bars, and said slide hole is slidably engaged with said slide bar.
8. The brake pad testing fixture of claim 1, wherein an arc-shaped supporting portion is formed at the top end of the support, a positioning groove matched with the brake pad in shape is concavely formed in the top surface of the supporting portion, the positioning groove extends along the axial direction and the circumferential direction of the supporting portion, and the bottom wall of the positioning groove forms the supporting surface.
9. The brake pad gauge of claim 1, comprising a reference block removably disposed on the support surface, wherein the measuring instrument is a dial indicator, and wherein the dial indicator uses the cylindricity and radius values obtained by measuring the reference block as qualified standard values of the cylindricity and radius of the brake pad, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122283641.0U CN216115806U (en) | 2021-09-20 | 2021-09-20 | Brake block testing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122283641.0U CN216115806U (en) | 2021-09-20 | 2021-09-20 | Brake block testing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216115806U true CN216115806U (en) | 2022-03-22 |
Family
ID=80735133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122283641.0U Active CN216115806U (en) | 2021-09-20 | 2021-09-20 | Brake block testing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216115806U (en) |
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2021
- 2021-09-20 CN CN202122283641.0U patent/CN216115806U/en active Active
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