CN217424977U - Self-tightening type clamping structure for winding brake cable and test tool - Google Patents
Self-tightening type clamping structure for winding brake cable and test tool Download PDFInfo
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- CN217424977U CN217424977U CN202221250731.8U CN202221250731U CN217424977U CN 217424977 U CN217424977 U CN 217424977U CN 202221250731 U CN202221250731 U CN 202221250731U CN 217424977 U CN217424977 U CN 217424977U
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000004804 winding Methods 0.000 title claims abstract description 32
- 238000009864 tensile test Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 230000007547 defect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model relates to a brake cable winding self-tightening clamping structure and a test tool, which are used for clamping two ends of a brake cable, and comprises a main body frame and a clamping component movably arranged on the main body frame, wherein the main body frame encloses a clamping area for accommodating the opening and closing of the clamping component, the clamping component comprises a first clamping block and a second clamping block which are meshed with each other, the first clamping block is connected on a frame plate in a sliding way, and the second clamping block is fixed on the frame plate; the first clamping block and the second clamping block are engaged to form a cylinder, and a limiting groove is formed in the outer surface of the cylinder. The utility model discloses compact structure, reasonable, convenient operation through adopting centre gripping, winding to combine spacing mode, makes the braking cable reliably spacing, and at the atress in-process, be difficult for being close to tip department atress damage.
Description
Technical Field
The utility model belongs to the technical field of electric motor car braking system technique and specifically relates to a braking cable winding self-tightening formula clamping structure and test fixture.
Background
The brake cable is widely used in the brake system of the electric vehicle, and the quality of the whole cable directly determines the use safety of the product. The breaking force performance is of great importance in the cable test detection, and the test result directly influences the quality control of the brake cable.
At present, the brake cable breaking force test uses the clamping method to test, the method is simple to operate, the requirement of test tooling is low, but the defect is also very outstanding, the diameter of the brake cable is thin, the problem that the clamping pressure is difficult to control exists, the cable can be damaged when the clamping pressure is too large, the clamping pressure is too small, the cable clamping is loosened, the invalid result of the cable pulling-off or the fracture position in the clamping area often appears during the test, the test result is inaccurate, the repeated sampling test is needed, and the resource waste is caused.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art, provides a brake cable winding self-tightening type clamping structure with a reasonable structure and a test tool, and increases winding limitation on the basis of a conventional clamping mode, so that the stability of a clamping state and the accuracy of a test result are improved.
The utility model discloses the technical scheme who adopts as follows:
a self-tightening type clamping structure for winding a brake cable is used for clamping two ends of the brake cable and comprises a main body frame and a clamping component movably arranged on the main body frame,
the main body frame encloses a clamping area for accommodating the opening and closing of the clamping component,
the clamping assembly comprises a first clamping block and a second clamping block which are meshed with each other, the first clamping block is connected to the frame plate in a sliding mode, and the second clamping block is fixed to the frame plate; the first clamping block is suitable for being meshed with the second clamping block after sliding to form a column body, and a limiting groove is formed in the outer surface of the column body.
As a further improvement of the above technical solution:
the main body frame comprises two side plates and a top plate for connecting the two side plates; the side plate is provided with a sliding groove for accommodating the first clamping block to reciprocate and a positioning hole for fixing the second clamping block.
And the top plate is provided with an installation shaft which is tightly matched with an external stretching device.
The sliding groove is obliquely arranged, and an included angle is formed between the sliding groove and the axis of the mounting rod.
Positioning pins are respectively arranged on two end faces of the first clamping block and the second clamping block; the positioning pin on the first clamping block falls into the sliding groove, and the first clamping block is suitable for sliding along the sliding groove under the driving of the positioning pin;
the positioning pins on the second clamping block are at least two and are positioned in the positioning holes, and the positioning pins are suitable for fixing the second clamping block on the side plate.
The first clamping block and the second clamping block are both semi-cylindrical, opposite surfaces of the first clamping block and the second clamping block are clamping surfaces, and the clamping surfaces are sawtooth surfaces.
The tooth edge on the clamping surface is perpendicular to the testing stress direction of the brake cable.
The top surface and the root surface of the sawtooth tooth of the clamping surface are both arc-shaped.
The limiting groove is located in the middle of the first clamping block and the second clamping block, and the notch of the limiting groove is rounded.
The utility model also provides a braking cable test fixture, with external tensile testing machine supporting use, including foretell braking cable winding self-tightening formula clamping structure, braking cable winding self-tightening formula clamping structure has 2 groups, respectively with tensile testing machine's 2 groups of pulling force device fixed connection.
The utility model has the advantages as follows:
the utility model discloses compact structure, reasonable, convenient operation combines spacing mode through adopting centre gripping, winding, makes the braking cable by reliable spacing, and at the atress in-process, be difficult for being close to tip department atress damage.
The utility model discloses during the centre gripping, need not to apply as big clamp force as ordinary centre gripping is spacing, at follow-up in-process of straining the brake cable gradually, it is tighter that the winding section can receive more, and the atress is even relatively, at the taut in-process of winding section atress, on this winding power transmits two clamp splices, becomes the clamp force, has further improved the reliable degree of centre gripping.
The utility model discloses in, the spout is the slope structure, when first clamp splice moves along the spout, except that the distance increase in vertical side, the distance on the horizontal direction also increases simultaneously, and the clamping face of second clamp splice can be shown as far as possible, is convenient for put the tip of brake cable on the clamping face between two clamp splices.
The utility model discloses in accord with corresponding national standard and the requirement of enterprise's mark, braking cable self-tightening formula clamping device can be quick test braking cable breaking force, can shorten test cycle, can be quick accurate obtain more effective test data, if only need be long time to the verification of cable through the way examination braking of riding, way test person's safety can't obtain the guarantee, and verifies the cycle length, can increase new product period of going to the market, the best selling time of mistake. The device can meet the requirements of tests on the inhaul cables with different specifications and also can meet a plurality of test items of the inhaul cables, such as an inhaul cable breaking force test, an inhaul cable elongation test, a connector pulling-out force test and the like.
Drawings
Fig. 1 is a schematic view of a clamping structure of the present invention.
Fig. 2 is another schematic view of a clamping structure according to the present invention.
Fig. 3 is a schematic view of the main frame structure of the present invention.
Fig. 4 is a schematic structural view of the clamping assembly of the present invention.
Fig. 5 is a front view of the clamping assembly of the present invention.
Fig. 6 is a sectional view of section a-a in fig. 4.
Fig. 7 is a schematic view of the present invention in an operating state.
Wherein: 1. a main body frame; 2. a clamping assembly; 3. positioning pins;
101. a side plate; 102. a top plate; 103. a chute; 104. installing a shaft; 105. positioning holes;
201. a first clamping block; 202. a second clamp block; 203. a limiting groove.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-7, the brake cable winding self-tightening clamping structure of the present embodiment is used for clamping two ends of a brake cable, and comprises a main frame 1, a clamping assembly 2 movably mounted on the main frame 1,
the main body frame 1 encloses a clamping area for accommodating the opening and closing of the clamping assembly 2,
the clamping assembly 2 comprises a first clamping block 201 and a second clamping block 202 which are meshed with each other, the first clamping block 201 is connected to the frame plate in a sliding mode, and the second clamping block 202 is fixed to the frame plate; the first clamping block 201 is suitable for being meshed with the second clamping block 202 after sliding to form a column body, and a limiting groove 203 is formed in the outer surface of the column body.
The main body frame 1 comprises two side plates 101 and a top plate 102 connecting the two side plates 101; the side plate 101 is provided with a sliding groove 103 for accommodating the first clamping block 201 in a reciprocating manner, and a positioning hole 105 for fixing the second clamping block 202.
The top plate 102 is provided with a mounting shaft 104, and the mounting shaft 104 is tightly matched with an external stretching device.
The chute 103 is arranged obliquely, and an included angle is formed between the chute 103 and the axis of the mounting rod.
Positioning pins 3 are respectively arranged on two end faces of the first clamping block 201 and the second clamping block 202;
the positioning pin 3 on the first clamping block 201 falls into the sliding groove 103, and the first clamping block 201 is suitable for sliding along the sliding groove 103 under the driving of the positioning pin 3;
the positioning pins 3 on the second clamping block 202 are at least two and are located in the positioning holes 105, and the positioning pins 3 are suitable for fixing the second clamping block 202 on the side plate 101.
The first clamping block 201 and the second clamping block 202 are both semi-cylindrical, the opposite surfaces of the first clamping block 201 and the second clamping block 202 are clamping surfaces, and the clamping surfaces are sawtooth surfaces.
The tooth edge on the clamping surface is perpendicular to the testing stress direction of the brake cable.
The top surface and the root surface of the sawtooth tooth of the clamping surface are both arc-shaped.
The limiting groove 203 is located in the middle of the first clamping block 201 and the second clamping block 202, and the notch of the limiting groove 203 is rounded.
The brake cable testing tool is matched with an external tensile testing machine for use, and comprises the brake cable winding self-tightening clamping structure;
the winding self-tightening clamping structure of the brake cable is provided with 2 groups which are fixedly connected with 2 groups of tension devices of the tension tester respectively.
The specific structure and working process of the embodiment are as follows:
as shown in fig. 1 to 3, a single clamping structure comprises a main body frame 1 and a clamping assembly 2, wherein the main body frame 1 is used for being installed on external equipment and exerting a pulling force; the clamping assembly 2 is used to clamp a brake cable to be tested, i.e. a brake cable of a vehicle. Referring to fig. 6, it is a test state diagram of the two clamping structures used together, in which the brake cable is stressed.
As shown in fig. 4 to 5, the clamp assembly 2 includes two semi-cylindrical first and second clamp blocks 201 and 202. The clamping surfaces of the first clamping block 201 and the second clamping block 202 are cylindrical longitudinal sections arranged as tooth surfaces, and in order to prevent the tooth surfaces from wearing the brake cable, the tooth top surfaces and the tooth root surfaces in the embodiment are both arranged as smooth curved surfaces.
When the tensile property of the brake cable is tested, the upper and lower groups of clamping structures are fixed on a tension and compression testing machine through the mounting shaft 104 respectively, the upper and lower groups of clamping structures need to be on the same direction and be kept on the same vertical line, and the tension testing machine is adjusted to a position with a proper distance from the upper tool to the lower tool.
Manually lifting the positioning pin 3 of the first clamping block 201 to reserve a space between the first clamping block 201 and the second clamping block 202 and clamp one end of a brake cable; releasing the first clamping block 201, and enabling the first clamping block 201 and the second clamping block 202 to be meshed to form a cylinder; winding a brake cable on the cylinder; at the moment, clamping and limiting of the upper clamp are finished;
winding the other end of the brake cable on a first clamping block 201 and a second clamping block 202 of the lower clamp, and reserving looseness, wherein the first clamping block 201 and the second clamping block 202 can still move relatively; then the end of the brake cable is put between the first clamping block 201 and the second clamping block 202 of the lower clamp and is closed to form a cylinder. At the moment, the clamping and limiting of the lower clamp are completed, and the brake cable on the lower clamp is in a loose state.
After the brake cable is installed according to the steps, the tensile machine applies tensile load at a specified speed until the brake cable is completely broken, the maximum breaking force value is recorded, a force value curve graph is stored, and data support and basis are provided for tests.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (10)
1. The utility model provides a braking cable winding self-tightening formula clamping structure for the both ends of centre gripping braking cable, its characterized in that: the self-tightening type clamping structure for winding the brake cable comprises a main body frame (1) and a clamping component (2) movably arranged on the main body frame (1),
the main body frame (1) encloses a clamping area for accommodating the opening and closing of the clamping component (2),
the clamping assembly (2) comprises a first clamping block (201) and a second clamping block (202) which are meshed with each other, the first clamping block (201) is connected to the frame plate in a sliding mode, and the second clamping block (202) is fixed to the frame plate; the first clamping block (201) is suitable for being meshed with the second clamping block (202) after sliding to form a cylinder, and a limiting groove (203) is formed in the outer surface of the cylinder.
2. The brake cable winding self-tightening clamp structure according to claim 1, characterized in that: the main body frame (1) comprises two side plates (101) and a top plate (102) connecting the two side plates (101); the side plate (101) is provided with a sliding groove (103) for accommodating the first clamping block (201) to reciprocate and a positioning hole (105) for fixing the second clamping block (202).
3. The brake cable winding self-tightening clamp structure according to claim 2, characterized in that: and the top plate (102) is provided with a mounting shaft (104), and the mounting shaft (104) is tightly matched with an external stretching device.
4. The brake cable winding self-tightening clamp structure according to claim 2, characterized in that: the sliding groove (103) is obliquely arranged, and an included angle is formed between the sliding groove (103) and the axis of the mounting rod.
5. The brake cable winding self-tightening clamp structure according to claim 2, characterized in that: positioning pins (3) are respectively arranged on two end faces of the first clamping block (201) and the second clamping block (202);
a positioning pin (3) on a first clamping block (201) falls into a sliding groove (103), and the first clamping block (201) is suitable for sliding along the sliding groove (103) under the driving of the positioning pin (3);
the positioning pins (3) on the second clamping block (202) are at least two and are positioned in the positioning holes (105), and the positioning pins (3) are suitable for fixing the second clamping block (202) on the side plate (101).
6. The brake cable winding self-tightening clamp structure according to claim 1, characterized in that: the first clamping block (201) and the second clamping block (202) are semi-cylindrical, opposite surfaces of the first clamping block (201) and the second clamping block (202) are clamping surfaces, and the clamping surfaces are sawtooth surfaces.
7. The brake cable winding self-tightening clamp structure according to claim 6, characterized in that: the tooth edge on the clamping surface is perpendicular to the testing stress direction of the brake cable.
8. The brake cable winding self-tightening clamp structure according to claim 6, characterized in that: the top surface and the root surface of the sawtooth tooth of the clamping surface are both arc-shaped.
9. The brake cable winding self-tightening clamp structure according to claim 1, characterized in that: the limiting groove (203) is located in the middle of the first clamping block (201) and the second clamping block (202), and the notch of the limiting groove (203) is rounded.
10. The utility model provides a braking cable test fixture which characterized in that: the brake cable winding self-tightening clamping structure is used together with an external tensile testing machine and comprises the brake cable winding self-tightening clamping structure as claimed in any one of claims 1 to 9;
the winding self-tightening clamping structure of the brake cable is provided with 2 groups which are fixedly connected with 2 groups of tension devices of the tension tester respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221250731.8U CN217424977U (en) | 2022-05-23 | 2022-05-23 | Self-tightening type clamping structure for winding brake cable and test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221250731.8U CN217424977U (en) | 2022-05-23 | 2022-05-23 | Self-tightening type clamping structure for winding brake cable and test tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217424977U true CN217424977U (en) | 2022-09-13 |
Family
ID=83190306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221250731.8U Active CN217424977U (en) | 2022-05-23 | 2022-05-23 | Self-tightening type clamping structure for winding brake cable and test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217424977U (en) |
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2022
- 2022-05-23 CN CN202221250731.8U patent/CN217424977U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231016 Address after: No. 2999, Xinglong Avenue, Weixinghu Street, Yongchuan District, Chongqing 402160 Patentee after: Chongqing Yadi Technology Co.,Ltd. Address before: 214000 Dongsheng Road, Dacheng Industrial Park, anzhen street, Xishan District, Wuxi City, Jiangsu Province Patentee before: YADEA TECHNIC GROUP Co.,Ltd. |