CN111504150A - Device for testing position degree of center hole of automobile brake bottom plate - Google Patents
Device for testing position degree of center hole of automobile brake bottom plate Download PDFInfo
- Publication number
- CN111504150A CN111504150A CN202010316339.8A CN202010316339A CN111504150A CN 111504150 A CN111504150 A CN 111504150A CN 202010316339 A CN202010316339 A CN 202010316339A CN 111504150 A CN111504150 A CN 111504150A
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- inspection
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- bottom plate
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- center hole
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- 238000012360 testing method Methods 0.000 title description 4
- 238000007689 inspection Methods 0.000 claims abstract description 84
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 210000004907 gland Anatomy 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0025—Measuring of vehicle parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of inspection devices, and discloses an inspection device for the position degree of a center hole of an automobile brake bottom plate, which comprises a base, a positioning mechanism fixed on the base, and an inspection support detachably connected to the base, wherein the outer wall of the inspection support is provided with a conical surface and an expansion sleeve sleeved on the inspection support, the inner wall of the expansion sleeve is connected with the conical surface, the inspection support is in threaded connection with a compression nut driving the expansion sleeve to expand along the conical surface, the center of the inspection support is provided with an inspection pin and an inspection hole for embedding the inspection pin, and the base is provided with a center hole for embedding the inspection pin. The invention has the following advantages and effects: the expansion sleeve and the inspection support are adopted to automatically find the actual center of the center hole of the brake bottom plate, the actual center is compared with the theoretical center of the base by the detection pin for inspection, the inspection precision is high, the structure is simple, the operation is convenient, and the position degree of the center hole of the brake bottom plate can be quickly detected.
Description
Technical Field
The invention relates to the technical field of inspection devices, in particular to an inspection device for the position degree of a center hole of an automobile brake bottom plate.
Background
A brake backing plate (braking plate) is a key part in a brake backing plate assembly, is a supporting part for fixing a brake shoe assembly and assembling a brake drum in an automobile brake, and is the core of the whole automobile brake. After the central hole of the brake bottom plate is subjected to finish machining, the position degree of the center of the hole needs to be detected, and a customer requires the position degree of the center of the hole relative to the position face of the outer wall of the brake bottom plate
While the tolerance of the aperture is larger
The outer wall of the braking bottom plate is provided with a blank surface which is rough, the precision of a center hole can be influenced, and the customer does not mark the maximum entity, so that the position degree of the center of the hole cannot be detected.
The Chinese patent with application publication number CN 109556479A discloses a position degree detection tool for detecting a brake back brake bottom plate, which comprises a detection tool body, wherein two first convex cylinders, a plurality of second hole position pin holes and a second convex cylinder are arranged on the detection tool body; a first hole position pin hole is formed in any one of the first convex cylinders, and a third hole position pin hole is formed in the second convex cylinder; a positioning base plate is arranged in the middle of the checking fixture body, a plurality of through holes are formed in the positioning base plate, the number of the through holes is equal to that of the second hole position pin holes, each through hole concentrically corresponds to one second hole position pin hole, and the concentricity of the through holes and the second hole position pin holes is 0.1-0.2; the device also comprises a first hole position measuring pin, a second hole position measuring pin and a third hole position measuring pin which are used for inserting the rear brake bottom plate to be detected, and the first hole position measuring pin, the second hole position measuring pin and the third hole position measuring pin respectively penetrate through holes in the rear brake bottom plate to be correspondingly inserted into the first hole position pin hole, the second hole position pin hole and the third hole position pin hole when the device is detected. When adopting this scheme to detect braking bottom plate position degree, need adopt three and detect the round pin, the operation is complicated, and can only detect the relative position degree in three hole, and unable inspection hole center is for the position degree of braking bottom plate outer wall, probably causes the influence to the testing result of braking bottom plate position degree.
Disclosure of Invention
The invention aims to provide a device for checking the position degree of a center hole of an automobile brake bottom plate, which has the effects of convenience in operation and high checking accuracy.
The technical purpose of the invention is realized by the following technical scheme: including the base, fix positioning mechanism on the base, can dismantle the connection and be in inspection support on the base, inspection support outer wall is provided with the conical surface, cup joints cover that rises on the inspection support, rise set inner wall with the conical surface meets, threaded connection has the drive on the inspection support rise the cover and follow the gland nut that the conical surface tapering rises, inspection support center is provided with the inspection round pin, supplies the inspection hole of inspection round pin embedding, be provided with the confession on the base the centre bore of inspection round pin embedding.
By adopting the technical scheme, when the position degree of the central hole of the brake bottom plate is checked, the brake bottom plate is firstly placed on the base, the brake bottom plate is fixed on the base through the positioning mechanism, and the theoretical central position of the brake bottom plate can be determined through the positioning mechanism; then, the inspection support is placed in the center hole of the brake bottom plate, the expansion sleeve is sleeved outside the inspection support, the inner wall of the expansion sleeve is connected with the outer wall of the inspection support, a compression nut for driving the expansion sleeve to expand along the conical taper of the inspection support is in threaded connection with the inspection support, the compression nut is screwed until the outer wall of the expansion sleeve is connected with the inner wall of the center hole of the brake bottom plate, at the moment, under the action of the expansion sleeve, the center of the inspection support is superposed with the actual center hole of the brake bottom plate, the inspection pin is embedded into the center hole of the inspection support, and if the inspection pin can be simultaneously embedded into the theoretical center hole on the base, the position degree of the center hole of the brake bottom plate is qualified.
The invention is further provided with: the positioning mechanism comprises at least three positioning blocks and at least two limiting blocks which are fixed on the base, and limiting bolts are connected to the side walls of the limiting blocks in a threaded mode.
By adopting the technical scheme, the brake bottom plate is placed on the base, the three reference surfaces on the brake bottom plate are respectively attached to the three positioning blocks, the position of the brake bottom plate can be determined, the central hole on the base is the theoretical central hole of the brake bottom plate, and then the brake bottom plate is fixed on the base by the limiting bolt, so that the brake bottom plate is prevented from loosening.
The invention is further provided with: the side wall of the expansion sleeve is provided with an open slot.
By adopting the technical scheme, the open slot arranged on the side wall of the expansion sleeve can enable the expansion sleeve to uniformly expand along the taper circumferential direction of the inspection support under the action of the compression nut, and the inspection support can be pushed to the actual central position of the central hole of the brake bottom plate by the interaction between the expansion sleeve and the inner wall of the central hole of the brake bottom plate.
The invention is further provided with: and a gasket is arranged between the compression nut and the expansion sleeve.
Through adopting above-mentioned technical scheme, the packing ring can evenly transmit the cover that rises with gland nut decurrent pressure, is favorable to the cover that rises to evenly expand along the circumferencial direction, and the operation of being convenient for has improved verifying attachment's inspection precision simultaneously.
The invention is further provided with: the taper of the conical surface is between 8 and 12 degrees.
Through adopting above-mentioned technical scheme, the inclined plane sets up great tapering and is convenient for lift the cover that rises off from the inspection support.
The invention is further provided with: and a first bushing is arranged at the joint of the inspection pin and the inspection hole.
The invention is further provided with: and a second bushing is arranged at the joint of the inspection pin and the central hole of the base.
Through adopting above-mentioned technical scheme, bush one and bush two are wear-resisting material, are difficult for taking place deformation, have guaranteed verifying attachment's precision, also can improve verifying attachment's life.
The invention is further provided with: the base is provided with a plurality of first supporting nails used for supporting the inspection support.
The invention is further provided with: and the base is provided with a plurality of second supporting nails for supporting the braking bottom plate.
By adopting the technical scheme, the brake bottom plate is irregular, the brake bottom plate is placed on the second support nail, the center hole of the brake bottom plate can be kept horizontal, the inspection support is placed on the second support nail, the bottom surface of the inspection support and the bottom surface of the center hole of the brake bottom plate can be positioned on the same horizontal plane, and errors caused by inclination of the brake bottom plate or the inspection support are avoided.
The invention has the beneficial effects that:
1. the expansion sleeve and the inspection support are adopted to automatically find the actual center of the center hole of the brake bottom plate, the actual center is compared with the theoretical center of the base by the detection pin for inspection, the inspection precision is high, the structure is simple, the operation is convenient, and the position degree of the center hole of the brake bottom plate can be rapidly detected;
2. the three positioning blocks are adopted to position the three reference surfaces of the braking bottom plate in a fitting manner, so that the theoretical center position of the braking bottom plate can be accurately found, the detection of the position degree of the center hole of the braking bottom plate can be realized under the condition that the position surface of the outer wall of the braking bottom plate is rough, and meanwhile, the qualification of the position degree of the center hole of the braking bottom plate relative to the reference surfaces through detection is ensured, and the positioning device can be used for assembling automobiles.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a plan view of the present embodiment.
Fig. 2 is a sectional view of the present embodiment.
Fig. 3 is a front view of the present embodiment.
In the figure, 1, a base; 11. a central bore; 12. a first support nail; 14. a second bushing; 2. a positioning mechanism; 21. positioning blocks; 22. a limiting block; 23. a limit bolt; 3. a second support nail; 4. inspecting the support; 41. a conical surface; 42. a compression nut; 43. checking the hole; 44. a check pin; 45. a first bushing; 5. expanding sleeves; 51. an open slot; 6. a gasket; 7. and braking the bottom plate.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to specific embodiments. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example (b): a checking device for the position degree of a central hole 11 of an automobile brake bottom plate 7 is shown in figure 1 and comprises a base 1, wherein a positioning mechanism 2 is fixed on the base 1, the brake bottom plate 7 is fixed on the base 1 through the positioning mechanism 2, the theoretical central position of the brake bottom plate 7 can be determined through the positioning mechanism 2, the theoretical central position of the base 1 is provided with the central hole 11, a first support nail 12 is arranged on the base 1, a checking support 4 is placed on the first support nail 12, the checking support 4 is positioned in the central hole 11 of the brake bottom plate 7 at the moment, an expansion sleeve 5 is sleeved on the checking support 4, the inner wall of the expansion sleeve 5 is connected with a conical surface 41 of the outer wall of the checking support 4, the side wall of the expansion sleeve 5 is provided with an open slot 51, a gland nut 42 is connected on the checking support 4 in a threaded manner, a gasket 6 is arranged between the gland nut 42 and the expansion sleeve, the expanding sleeve 5 uniformly expands along the conical surface 41 of the inspection support 4 in the circumferential direction until the outer wall of the expanding sleeve 5 is connected with the inner wall of the central hole 11 of the brake bottom plate 7, meanwhile, the expanding sleeve 5 pushes the inspection support 4 to the center of the central hole 11 of the brake bottom plate 7, the inspection hole 43 is formed in the center of the inspection support 4, the inspection pin 44 is inserted in the inspection hole 43, the inspection pin 44 can be simultaneously inserted in the inspection hole 43 and the central hole 11 of the base 1, and the position degree of the central hole 11 of the brake bottom plate 7 is qualified.
As shown in fig. 2, the positioning mechanism 2 includes three positioning blocks 21 fixed on the base 1, the three positioning blocks 21 are attached to three reference surfaces of the braking bottom plate 7, the position of the braking bottom plate 7 can be fixed, the positioning mechanism 2 further includes two limiting blocks 22 fixed on the base 1, the side walls of the limiting blocks 22 are in threaded connection with limiting bolts 23, and after the position of the braking bottom plate 7 is determined by the positioning blocks 21, the limiting bolts 23 are abutted to the braking bottom plate 7, so that the braking bottom plate 7 is prevented from moving.
Further preferably, the base 1 is provided with a plurality of second supporting nails 3 for supporting the braking bottom plate 7, when the braking bottom plate 7 is placed on the second supporting nails 3, the central hole 11 of the braking bottom plate 7 is parallel to the horizontal plane, and the bottom surface of the central hole 11 of the braking bottom plate 7 and the bottom surface of the inspection support 4 placed on the first supporting nails 12 are located on the same plane.
Further optimized, the taper of the 41 surface of the conical surface of the test support 4 is between 8 and 12 degrees, and the expansion sleeve 5 sleeved on the conical surface 41 is convenient to disassemble.
Further optimize, the department that meets of inspection round pin 44 and inspection hole 43 is provided with bush one 45, and the department that meets of inspection round pin 44 and base 1 centre bore 11 is provided with bush two 14, and bush one 45 and bush two 14 are wear-resisting material, and non-deformable can improve verifying attachment's life, guarantees the accuracy of position degree inspection.
The working principle of the device for checking the position degree of the central hole 11 of the automobile brake bottom plate 7 is as follows: when the position degree of the central hole 11 of the brake bottom plate 7 is checked, firstly, the brake bottom plate 7 is placed on the base 1, the brake bottom plate 7 is placed on the second support nail 3, three reference surfaces of the brake bottom plate 7 are attached to the positioning block 21, the brake bottom plate 7 is fixed on the base 1 by the limiting block 22, and the position of the central hole 11 on the bottom plate is the theoretical center of the central hole 11 of the brake bottom plate 7; then, the inspection support 4 is placed on a support nail I12 in a central hole 11 of the brake bottom plate 7, the expansion sleeve 5 is sleeved outside the inspection support 4, the inner wall of the expansion sleeve 5 is connected with the outer wall of the inspection support 4, a compression nut 42 for driving the expansion sleeve 5 to expand along the taper of the conical surface 41 of the inspection support 4 is connected on the inspection support 4 in a threaded manner, the compression nut 42 is screwed until the outer wall of the expansion sleeve 5 is connected with the inner wall of the central hole 11 of the brake bottom plate 7, at the moment, under the action of the expansion sleeve 5, the center of the inspection support 4 is superposed with the actual central hole 11 of the brake bottom plate 7, an inspection pin 44 is embedded in the central, if the inspection pin 44 can be simultaneously embedded into the theoretical central hole 11 on the base 1, the position degree of the central hole 11 of the brake bottom plate 7 is qualified, the checking device is simple in structure, convenient to operate and high in reliability, and can realize quick checking of the position degree of the central hole 11 of the brake bottom plate 7.
Claims (9)
1. The utility model provides an inspection device of car braking bottom plate centre bore position degree which characterized in that: including base (1), fix positioning mechanism (2), the detachable connection on base (1) are in inspection support (4) on base (1), inspection support (4) outer wall is provided with conical surface (41), cup joints cover (5) that rises on inspection support (4), cover (5) inner wall that rises with conical surface (41) meet, threaded connection has the drive on inspection support (4) cover (5) that rises are followed conical surface (41) tapering gland nut (42) that rises, inspection support (4) center is provided with inspection round pin (44), supplies inspection hole (43) of inspection round pin (44) embedding, be provided with the confession on base (1) inspection round pin (44) embedded centre bore (11).
2. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: the positioning mechanism (2) comprises at least three positioning blocks (21) and at least two limiting blocks (22) which are fixed on the base (1), and limiting bolts (23) are connected to the side walls of the limiting blocks (22) in a threaded mode.
3. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: the side wall of the expansion sleeve (5) is provided with an open slot (51).
4. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: and a gasket (6) is arranged between the compression nut (42) and the expansion sleeve (5).
5. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: the taper of the conical surface (41) is between 8 and 12 degrees.
6. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: and a first bushing (45) is arranged at the joint of the inspection pin (44) and the inspection hole (43).
7. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: and a second bushing (14) is arranged at the joint of the inspection pin (44) and the central hole (11) of the base (1).
8. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: the base (1) is provided with a plurality of first supporting nails (12) used for supporting the inspection support (4).
9. The device for checking the positional accuracy of the center hole of the automobile brake backing plate according to claim 1, wherein: the base (1) is provided with a plurality of second supporting nails (3) used for supporting the braking bottom plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010316339.8A CN111504150A (en) | 2020-04-21 | 2020-04-21 | Device for testing position degree of center hole of automobile brake bottom plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010316339.8A CN111504150A (en) | 2020-04-21 | 2020-04-21 | Device for testing position degree of center hole of automobile brake bottom plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111504150A true CN111504150A (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010316339.8A Pending CN111504150A (en) | 2020-04-21 | 2020-04-21 | Device for testing position degree of center hole of automobile brake bottom plate |
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| Country | Link |
|---|---|
| CN (1) | CN111504150A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008026276A (en) * | 2006-07-25 | 2008-02-07 | Nanya Seisakusho:Kk | Coordinate detector for measuring position degree, and position degree measuring system |
| CN201488680U (en) * | 2009-06-19 | 2010-05-26 | 中信戴卡轮毂制造股份有限公司 | Device for measuring displacement |
| CN201754073U (en) * | 2010-06-09 | 2011-03-02 | 上海汇众汽车制造有限公司 | Brake disc or brake drum assembly hole position checking tool |
| CN205156781U (en) * | 2015-09-30 | 2016-04-13 | 陕西法士特齿轮有限责任公司 | Set gear type wheel inspection mandrel rises |
| CN207019611U (en) * | 2017-08-07 | 2018-02-16 | 重庆铭科精艺汽车零部件有限公司 | A kind of Automobile flanges disk cubing |
| CN109556479A (en) * | 2018-11-17 | 2019-04-02 | 湖南运达机电科技股份有限公司 | It is a kind of for detecting the position detecting tool of back-plate after brake |
| CN209399888U (en) * | 2019-02-26 | 2019-09-17 | 布雷博惠联(廊坊)制动系统有限公司 | A kind of automobile brake disc position detecting tool |
| CN110645869A (en) * | 2019-10-15 | 2020-01-03 | 中信戴卡股份有限公司 | Position degree detection device |
| CN210089534U (en) * | 2019-05-28 | 2020-02-18 | 西安法士特汽车传动有限公司 | Position degree detection tool for taper hole key groove |
| CN211953924U (en) * | 2020-04-21 | 2020-11-17 | 湖北三环锻造有限公司 | Device for testing position degree of center hole of automobile brake bottom plate |
-
2020
- 2020-04-21 CN CN202010316339.8A patent/CN111504150A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008026276A (en) * | 2006-07-25 | 2008-02-07 | Nanya Seisakusho:Kk | Coordinate detector for measuring position degree, and position degree measuring system |
| CN201488680U (en) * | 2009-06-19 | 2010-05-26 | 中信戴卡轮毂制造股份有限公司 | Device for measuring displacement |
| CN201754073U (en) * | 2010-06-09 | 2011-03-02 | 上海汇众汽车制造有限公司 | Brake disc or brake drum assembly hole position checking tool |
| CN205156781U (en) * | 2015-09-30 | 2016-04-13 | 陕西法士特齿轮有限责任公司 | Set gear type wheel inspection mandrel rises |
| CN207019611U (en) * | 2017-08-07 | 2018-02-16 | 重庆铭科精艺汽车零部件有限公司 | A kind of Automobile flanges disk cubing |
| CN109556479A (en) * | 2018-11-17 | 2019-04-02 | 湖南运达机电科技股份有限公司 | It is a kind of for detecting the position detecting tool of back-plate after brake |
| CN209399888U (en) * | 2019-02-26 | 2019-09-17 | 布雷博惠联(廊坊)制动系统有限公司 | A kind of automobile brake disc position detecting tool |
| CN210089534U (en) * | 2019-05-28 | 2020-02-18 | 西安法士特汽车传动有限公司 | Position degree detection tool for taper hole key groove |
| CN110645869A (en) * | 2019-10-15 | 2020-01-03 | 中信戴卡股份有限公司 | Position degree detection device |
| CN211953924U (en) * | 2020-04-21 | 2020-11-17 | 湖北三环锻造有限公司 | Device for testing position degree of center hole of automobile brake bottom plate |
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