CN220196976U - Be applied to swift high accuracy automation anchor clamps of brake connection board - Google Patents
Be applied to swift high accuracy automation anchor clamps of brake connection board Download PDFInfo
- Publication number
- CN220196976U CN220196976U CN202321960866.8U CN202321960866U CN220196976U CN 220196976 U CN220196976 U CN 220196976U CN 202321960866 U CN202321960866 U CN 202321960866U CN 220196976 U CN220196976 U CN 220196976U
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- sleeve
- return spring
- shaft
- positioning
- 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.)
- Active
Links
- 238000003825 pressing Methods 0.000 claims abstract description 37
- 238000003754 machining Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model discloses a rapid high-precision automatic clamp applied to a brake connecting plate, which belongs to the technical field of machining and comprises a clamp main body assembly, a positioning protection seat, a piston ring, a pull rod, a shaft, a pressing sleeve, a limiting sleeve, a lower sliding sleeve, an upper sliding sleeve, a pressing arm, a connecting rod, a first reset spring, a second reset spring, a third reset spring, an auxiliary supporting cylinder, a linear driving mechanism and a pin shaft. The rapid high-precision automatic clamp applied to the brake connecting plate thoroughly solves the problem of positioning precision, has abrasion compensation capability, inhibits part deformation and vibration in the part processing process, and greatly improves the product quality and stability; meanwhile, waste caused by the problem of out-of-tolerance or even scrapping of workpieces is avoided; the workpiece clamping time is shortened, and the production efficiency is greatly improved; the tool is automatic, the operation is convenient and quick, and the time and the labor are saved; the maintenance is convenient, the vulnerable part is replaceable, and the service life of the clamp is greatly prolonged.
Description
Technical Field
The utility model belongs to the technical field of machining, and particularly relates to a rapid high-precision automatic clamp applied to a brake connecting plate.
Background
The jig is a device for holding a work object in a correct position during machining and manufacturing to receive a work or inspection.
Brake webs are a critical component in heavy trucks for connecting brakes. In the production process of the brake connecting plate, the blank is a thin-wall casting, and the machining precision requirement of individual elements is high. In the existing production process, the method for positioning and clamping the blank workpiece comprises the following steps: the method comprises the steps of finish turning an inner hole and an end face on a workpiece in advance, taking the finish turning inner hole and the end face as finish machining positioning references in the subsequent working procedures, sleeving the workpiece on a positioning shaft, and manually clamping the upper part to finish positioning after the positioning shaft is matched with the positioning references, and then machining. The positioning accuracy depends on the size of a fit clearance between the positioning shaft and the positioning reference, when the fit clearance is smaller, the positioning accuracy requirement can be met, but the replacement workpiece is often jammed; when the fit clearance is larger, the workpiece is convenient to replace and assemble, but the positioning accuracy and reliability are reduced. After long-term use, the tool wear can aggravate quality risks; the blank workpiece is a thin-wall casting, and the workpiece is easy to deform and vibrate in the processing process; the manual clamping is adopted, so that the labor intensity is high, the production efficiency is low, the productivity is not improved, and the cost is reduced.
There is a need in the art for a new solution to this problem.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the quick high-precision automatic clamp applied to the brake connecting plate is used for solving the technical problems that in the prior art, the positioning precision of the clamp is low, the fit clearance is required to be manually adjusted to be manually clamped, and parts are easy to deform and vibrate in the machining process.
The technical scheme adopted by the utility model is to provide a rapid high-precision automatic clamp applied to a brake connecting plate, which comprises a clamp main body assembly, wherein the upper part of the clamp main body assembly is fixedly connected with a positioning protection seat and an auxiliary supporting cylinder, the lower part of the clamp main body assembly is provided with a linear driving mechanism, and a driving rod of the linear driving mechanism penetrates through the clamp main body assembly and is fixedly connected with a pull rod;
the positioning protection seat comprises a positioning shaft, an end face and a protection block, a piston ring is sleeved outside the positioning shaft, a pressing sleeve is arranged at the top of the piston ring, and the pull rod penetrates through the pressing sleeve and the positioning shaft;
the top of the pull rod is fixedly connected with a shaft, an upper sliding sleeve, a limiting sleeve and a lower sliding sleeve are arranged on the shaft, a third reset spring is arranged between the upper sliding sleeve and the top of the shaft, a second reset spring is arranged between the lower sliding sleeve and the pressing sleeve, a first reset spring is arranged between the upper sliding sleeve and the lower sliding sleeve, and the limiting sleeve is arranged outside or inside the first reset spring and used for limiting the first reset spring to be further compressed;
the upper sliding sleeve is connected with the pressing arm through a pin shaft, the lower sliding sleeve is connected with the connecting rod through a pin shaft, and the pressing arm is connected with the connecting rod through a pin shaft;
the positioning shaft, the piston ring, the pull rod, the shaft, the pressing sleeve, the limiting sleeve, the lower sliding sleeve, the upper sliding sleeve, the first reset spring, the second reset spring, the third reset spring and the linear driving mechanism are coaxially arranged.
The elastic coefficients of the first reset spring, the second reset spring and the third reset spring are different:
first return spring elastic coefficient K 1 ，
Second return spring elastic coefficient K 2 ，
Spring rate K of third return spring 3 ，
Coefficient of elasticity K 1 ＜K 2 ＜K 3 。
Through the design scheme, the utility model has the following beneficial effects:
1. the protection block of the positioning protection seat guides the workpiece to be placed at the correct position, and simultaneously protects the piston ring, so that collision and excessive abrasion are avoided, the piston ring provides stable and reliable positioning precision for the workpiece, the machining precision is fundamentally ensured, the production efficiency, the product quality and the stability are greatly improved, and the waste caused by the problem of out-of-tolerance or even scrapping of the workpiece is avoided;
2. the third reset spring and the pressing arm provide clamping force for the workpiece, the auxiliary supporting cylinder is arranged to provide auxiliary support for the workpiece, deformation and vibration in the processing process of the workpiece are restrained, and the problems of over-tolerance of size, form and position tolerance and surface roughness caused by deformation and vibration are improved;
3. in the workpiece clamping process, the pressing arms are opened, fed, clamped and the piston ring is positioned to perform consecutive sequential actions, positioning can be completed by one-time clamping, multiple times of adjustment are not needed in actual production, the use is convenient, the workpiece clamping time is shortened, and the production efficiency is improved;
4. the piston ring can compensate the abrasion, and the positioning deviation or the deviation is very small due to the abrasion when the piston ring is used for a long time;
5. the easy-to-wear parts of the clamp are easy to replace, the maintenance is convenient, the period is long, and the service life of the clamp is greatly prolonged;
6. the labor intensity of workers is improved, the tooling is automatic, the operation is convenient and quick, and time and labor are saved.
Drawings
FIG. 1 is a schematic diagram of a quick high precision automated fixture for brake connection plates according to the present utility model;
FIG. 2 is a working state diagram of the rapid high-precision automatic clamp applied to a brake connecting plate;
FIG. 3 is a working state diagram of the rapid high-precision automatic clamp applied to a brake connecting plate;
FIG. 4 is a diagram of the working state of a quick high precision automated clamp for brake connection plates according to the present utility model;
FIG. 5 is a working state diagram of a quick high precision automated fixture for brake connection plates according to the present utility model;
fig. 6 is a top view of a quick high precision automated jig for use with brake webs of the present utility model.
In the figure, a main body assembly of a 1-clamp, a 2-positioning protection seat, a 3-piston ring, a 4-pull rod, a 5-shaft, a 6-pressing sleeve, a 7-limiting sleeve, an 8-lower sliding sleeve, a 9-upper sliding sleeve, a 10-pressing arm, an 11-connecting rod, a 12-first return spring, a 13-second return spring, a 14-third return spring, a 15-auxiliary supporting cylinder, a 16-linear driving mechanism, a 17-pin shaft and an 18-workpiece are arranged.
Detailed Description
The utility model is further described with reference to the drawings and detailed description which follow:
as shown in fig. 1, the rapid high-precision automatic clamp applied to a brake connecting plate comprises a clamp main body assembly 1, a positioning protection seat 2, a piston ring 3, a pull rod 4, a shaft 5, a pressing sleeve 6, a limiting sleeve 7, a lower sliding sleeve 8, an upper sliding sleeve 9, a pressing arm 10, a connecting rod 11, a first return spring 12, a second return spring 13, a third return spring 14, an auxiliary support cylinder 15, a linear driving mechanism 16 and a pin shaft 17.
The first return spring 12, the second return spring 13 and the third return spring 14 have different elastic coefficients:
first return spring 12 spring constant K 1 ；
The second return spring 13 has an elastic coefficient K 2 ；
Spring rate K of third return spring 14 3 ；
Coefficient of elasticity K 1 ＜K 2 ＜K 3 。
The positioning protection seat 2, the piston ring 3, the pull rod 4, the shaft 5, the pressing sleeve 6, the limiting sleeve 7, the lower sliding sleeve 8, the upper sliding sleeve 9, the first return spring 12, the second return spring 13, the third return spring 14 and the linear driving mechanism 16 are coaxially arranged.
The positioning protection seat 2 is mounted on the clamp main body assembly 1, and the positioning shaft 201, the end face 202 and the protection block 203 are part of the positioning protection seat 2 and are integrally formed. The piston ring 3 is sleeved on a positioning shaft 201 of the positioning protection seat 2, the piston ring 3 is in precise fit, a pressing sleeve 6 is arranged at the top of the piston ring 3, the pressing sleeve 6 is in close contact with the piston ring 3, a pull rod 4 penetrates through the pressing sleeve 6, the positioning shaft 201 is fixedly connected with a driving rod of a linear driving structure 16, a shaft 5 penetrates through an upper sliding sleeve 9, a limiting sleeve 7, a lower sliding sleeve 8 and the pull rod 4 to be fixedly connected, a pressing arm 10 is connected with the upper sliding sleeve 9 through a pin shaft 17, a connecting rod 11 is connected with the lower sliding sleeve 8 through a pin shaft 17, and the connecting rod 11 is connected with the pressing arm 10 through a pin shaft 17. A third return spring 14 is arranged between the upper sliding sleeve 9 and the top of the shaft 5, a second return spring 13 is arranged between the lower sliding sleeve 8 and the pressing sleeve 6, a first return spring 12 is arranged between the upper sliding sleeve 9 and the lower sliding sleeve 8, a limit sleeve 7 is arranged outside or inside the first return spring 12, and the limit sleeve 7 is used for limiting the first return spring 12 to be further compressed.
When in use, the workpiece 18 is sleeved on the positioning protection seat 2 from the upper part of the clamp, so that the workpiece 18 is closely contacted with the end face 202 of the positioning protection seat 2 and is in clearance fit with the protection block 203 of the positioning protection seat 2. The working process of the clamp is as follows:
1. the linear driving mechanism 16 drives the pull rod 4 (and the shaft 5), and the elastic coefficient K 1 The minimum, the first reset spring 12 compresses the biggest, the relative distance of upper sliding sleeve 9, lower sliding sleeve 8 shortens, press the arm 10 to open outwards under the function of the connecting rod 11, until the upper sliding sleeve 9 contacts with stop collar 7, the first reset spring 12 stops compressing, press the arm to stop opening, as shown in figure 2;
2. the linear driving mechanism 16 drives the pull rod 4 (and the shaft 5) to continuously move forward, and the elasticity coefficient K 2 ＜K 3 The compression amount of the second return spring 13 is larger than that of the third return spring 14, and the stop collar 7, the upper sliding sleeve 9, the lower sliding sleeve 8, the pressing arm 10, the connecting rod 11 and the first return spring 12 continue to advance as a whole (pressing assembly) until the pressing arm 10 contacts a workpiece, and the stop collar 7, the upper sliding sleeve 9, the lower sliding sleeve 8, the pressing arm 10, the connecting rod 11 and the first return spring 12 stop advancing as a whole (pressing assembly), as shown in fig. 3;
3. the linear driving mechanism 16 drives the pull rod 4 (and the shaft 5) to continuously advance, the third return spring 14 continuously contracts, clamping force is applied to the limiting sleeve 7, the upper sliding sleeve 9, the lower sliding sleeve 8, the pressing arm 10, the connecting rod 11 and the first return spring 12 as a whole (a pressing assembly), and the pressing arm 10 gives clamping force to a workpiece, as shown in fig. 4;
4. the linear driving mechanism 16 drives the pull rod 4 (and the shaft 5) to continuously move forward, the pull rod 4 contacts the pressing sleeve 6, the piston ring 3 is pressed, the piston ring 3 is expanded, the workpiece is positioned with high precision, radial clamping force is provided for clamping, and the clamping force given by the pressing arm 10 to the workpiece is maximum;
5. the auxiliary supporting cylinder 15 is lifted to provide supporting force as shown in fig. 5.
At this time, the machining center may be started to perform machining operations in accordance with the program.
The placement of the workpiece 18 on the fixture is shown in fig. 6.
The foregoing is illustrative of embodiments of the present utility model and is not to be construed as limiting the claims. The present utility model is not limited to the above embodiments, and the specific structure thereof is allowed to be changed, and all changes made within the scope of the claims of the present utility model are within the scope of the utility model.
Claims (2)
1. Be applied to swift high accuracy automation anchor clamps of brake connection board, its characterized in that: the clamp comprises a clamp main body assembly (1), wherein the upper part of the clamp main body assembly (1) is fixedly connected with a positioning protection seat (2) and an auxiliary supporting cylinder (15), the lower part of the clamp main body assembly (1) is provided with a linear driving mechanism (16), and a driving rod of the linear driving mechanism (16) penetrates through the clamp main body assembly (1) and is fixedly connected with a pull rod (4);
the positioning protection seat (2) comprises a positioning shaft (201), an end face (202) and a protection block (203), a piston ring (3) is sleeved outside the positioning shaft (201), a pressing sleeve (6) is arranged at the top of the piston ring (3), and the pull rod (4) penetrates through the pressing sleeve (6) and the positioning shaft (201);
the top of the pull rod (4) is fixedly connected with a shaft (5), an upper sliding sleeve (9), a limiting sleeve (7) and a lower sliding sleeve (8) are arranged on the shaft (5), a third reset spring (14) is arranged between the upper sliding sleeve (9) and the top of the shaft (5), a second reset spring (13) is arranged between the lower sliding sleeve (8) and the pressing sleeve (6), a first reset spring (12) is arranged between the upper sliding sleeve (9) and the lower sliding sleeve (8), the limiting sleeve (7) is arranged outside or inside the first reset spring (12), and the limiting sleeve (7) is used for limiting the first reset spring (12) to be further compressed;
the upper sliding sleeve (9) is connected with the pressing arm (10) through a pin roll (17), the lower sliding sleeve (8) is connected with the connecting rod (11) through the pin roll (17), and the pressing arm (10) is connected with the connecting rod (11) through the pin roll (17);
the positioning shaft (201), the piston ring (3), the pull rod (4), the shaft (5), the pressing sleeve (6), the limiting sleeve (7), the lower sliding sleeve (8), the upper sliding sleeve (9), the first return spring (12), the second return spring (13), the third return spring (14) and the linear driving mechanism (16) are coaxially arranged.
2. The rapid high-precision automatic clamp applied to a brake connection plate according to claim 1, wherein: the elastic coefficients of the first return spring (12), the second return spring (13) and the third return spring (14) are different:
the elastic coefficient K of the first return spring (12) 1 ，
The second return spring (13) has an elastic coefficient K 2 ，
The elastic coefficient K of the third return spring (14) 3 ，
Coefficient of elasticity K 1 ＜K 2 ＜K 3 。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321960866.8U CN220196976U (en) | 2023-07-25 | 2023-07-25 | Be applied to swift high accuracy automation anchor clamps of brake connection board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321960866.8U CN220196976U (en) | 2023-07-25 | 2023-07-25 | Be applied to swift high accuracy automation anchor clamps of brake connection board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220196976U true CN220196976U (en) | 2023-12-19 |
Family
ID=89150450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321960866.8U Active CN220196976U (en) | 2023-07-25 | 2023-07-25 | Be applied to swift high accuracy automation anchor clamps of brake connection board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220196976U (en) |
-
2023
- 2023-07-25 CN CN202321960866.8U patent/CN220196976U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110385462A (en) | A kind of outer circle part abnormity positioning drilling tool fixture and clamping method | |
| CN220196976U (en) | Be applied to swift high accuracy automation anchor clamps of brake connection board | |
| CN202088008U (en) | Excircle tool of rod clamping material | |
| CN206982231U (en) | Numerical control end-face milling drill centres machine tool clamp floating click-on mechanism | |
| CN203266160U (en) | Clamp of machining center | |
| CN210024551U (en) | Elevator brake block processingequipment | |
| CN103894851A (en) | Automatic clamping device with lateral positioning function and using method thereof | |
| CN203804589U (en) | Automatic clamping device with side direction positioning | |
| CN210115400U (en) | Electro-magnet armature push rod riveting tool base for proportional valve | |
| CN108747452B (en) | Special blade clamp with adjustable radial displacement | |
| CN110434372A (en) | A kind of thin plate drilling tool fixture and its clamping method | |
| CN207681321U (en) | A kind of precise punching die having lubrication functions of physical supply | |
| CN107442645B (en) | Automobile top cover floating cavity die punching die | |
| CN201316815Y (en) | Clamp apparatus for digital control lathes | |
| CN220637031U (en) | Double-sided clamping tool structure of support | |
| CN215392503U (en) | Numerical control lathe tailstock tool jig | |
| CN211305334U (en) | Welding and clamping jig for automobile seat clamping piece | |
| CN216758185U (en) | End face driven shaft machining center clamp | |
| CN214393353U (en) | Non-shaft part turning positioning fixture | |
| CN210413884U (en) | Flexible polishing system for automobile steering knuckle | |
| CN213005045U (en) | Device for manufacturing workpiece mounting bushing or drill bushing by airplane tool | |
| CN219900799U (en) | Automatic metal plate welding combination tool | |
| CN218744185U (en) | Stamping die convenient to change drift | |
| CN212734142U (en) | Forming die for powder metallurgy forming chemical fiber cutting knife green body | |
| CN218476333U (en) | Multi-unit hole making machine tool workpiece automatic clamping and adjusting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |