CN216503474U - Convertible frock clamp of machining - Google Patents
Convertible frock clamp of machining Download PDFInfo
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- CN216503474U CN216503474U CN202122120485.6U CN202122120485U CN216503474U CN 216503474 U CN216503474 U CN 216503474U CN 202122120485 U CN202122120485 U CN 202122120485U CN 216503474 U CN216503474 U CN 216503474U
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Abstract
The utility model discloses a machining turnover type tool clamp which comprises a bottom plate, a supporting block assembly, a driving assembly and a clamp assembly, wherein the bottom plate is provided with a base plate; the supporting block assembly comprises a plurality of fixed supporting blocks and a sliding block supporting plate, the fixed supporting blocks are fixedly arranged on the bottom plate along the vertical direction, and the sliding block supporting plate is connected with the fixed supporting blocks in a sliding manner and driven by the driving assembly to slide and reset; the clamp component comprises a valve block mounting plate, a first pressing plate and a second pressing plate, the valve block mounting plate is rotatably mounted on the sliding block supporting plate and comprises a clamp positioning surface and a workpiece positioning surface, the clamp positioning surface is matched with the first pressing plate to horizontally fasten the valve block mounting plate on the upper end of the fixed supporting block, and the second pressing plate is arranged opposite to the workpiece positioning surface and used for positioning and clamping workpieces. The valve block mounting plate can be turned over by 180 degrees by lifting the valve block mounting plate through the eccentric wheel, one-time clamping can be realized, and two upper and lower sealing planes are processed; the clamping is reliable, and the clamping cannot be damaged by collision, pressure and scratch.
Description
Technical Field
The utility model relates to the technical field of mechanical manufacturing, in particular to a machining turnover type tool clamp.
Background
The machining process is actually a process of correspondingly machining various specific parts, and different machines are assembled by different parts due to different mechanical structures and functions. For some mechanical parts with specific structures, corresponding tooling and processing machines are usually used to complete the machining of the parts. The utility model aims at the processing object of an aluminum alloy casting, wherein the precast hole is a taper hole, and the rest four peripheral surfaces except the upper plane and the lower plane are planes with draft angles. The technical difficulty of the product processing is that the upper plane and the lower plane are both sealing planes to be processed (the surface roughness requirement is Ra1.6), the flatness requirement is 0.02mm, and the mutual parallelism requirement is 0.03 mm.
The conventional tool is used for processing, the precast hole is used as a positioning hole, the precast hole surface is used as a positioning surface, a first surface (upper plane) is processed, and when a second surface (lower plane) is processed, the original positioning hole is the precast hole, so that the precision reference positioning can not be carried out, and the vice can only be used for processing the second surface (lower plane). Use the vice clamping in-process, because the part all around face just has certain draft for the casting plane, it is not tight and the part has processed first face (last plane) probably can't hug closely the vice locating surface to appear the part clamping during the clamping easily, lead to the machining dimension unstable, when the first face (last plane) that has processed was used for fixing a position processing second face (lower plane), the first face (last plane) of processing took place easily and bruise, crush injury, fish tail scheduling problem, lead to sealed inefficacy. Due to the secondary clamping processing, the parallelism of the two planes of 0.03mm can not be ensured.
The CNC four-axis rotary table is used for machining, a tool needs to be made, a precast hole is used as a positioning hole, a precast hole surface is used as a positioning surface for machining, the price of the CNC four-axis rotary table is about 40 times higher than that of a turnable tool for machining, and the CNC four-axis rotary table is not suitable for machining of small-batch parts. For this reason, it is necessary to design an accurate and efficient tool clamp to assist the machining of the product part, so as to improve the machining efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the background technology, the utility model provides a machining turnover type tool clamp, and the technical scheme of the utility model is as follows:
a machining turnover type tool clamp comprises a bottom plate, a supporting block assembly, a driving assembly and a clamp assembly; the supporting block assembly comprises a plurality of fixed supporting blocks and a sliding block supporting plate, the fixed supporting blocks are fixedly arranged on the bottom plate along the vertical direction, and the sliding block supporting plate is connected with the fixed supporting blocks in a sliding manner and driven by the driving assembly to slide and reset; the clamp component comprises a valve block mounting plate, a first pressing plate and a second pressing plate, the valve block mounting plate is rotatably mounted on the sliding block supporting plate and comprises a clamp positioning surface and a workpiece positioning surface, the clamp positioning surface is matched with the first pressing plate to horizontally fasten the valve block mounting plate on the upper end of the fixed supporting block, and the second pressing plate is arranged opposite to the workpiece positioning surface and used for positioning and clamping workpieces.
As a further description of the present invention, the fixed support blocks include two end support blocks and a middle support block, and upper and lower end surfaces of the two end support blocks and the middle support block are parallel to the bottom plate.
Furthermore, the clamp positioning surface of the valve block mounting plate is a plane with the upper end and the lower end parallel to each other.
Furthermore, the workpiece positioning surface of the valve block mounting plate is two side surfaces of the valve block mounting plate, is matched with the corresponding side surface of the workpiece in shape, and comprises positioning pins corresponding to the casting precast holes of the workpiece.
Furthermore, the number of the workpiece positioning surfaces is multiple, and the workpiece positioning surfaces are respectively arranged on two sides of the valve block mounting plate.
Furthermore, the workpiece positioning surface is provided with a mistake-proofing pin for limiting the insertion direction of the workpiece.
Furthermore, the driving assembly comprises a rotating shaft welding piece and an eccentric wheel, the eccentric wheel is arranged below the sliding block supporting plate respectively, and the rotating shaft welding piece penetrates through the eccentric wheel, the two end supporting blocks, the middle supporting block, the two end supporting blocks and the eccentric wheel in sequence and then is positioned and tightly matched through an elastic cylindrical pin.
Furthermore, the two end supporting blocks are provided with sliding positioning pins, the slider supporting plate is provided with sliding positioning grooves, and the sliding track direction of the slider supporting plate is limited by the sliding positioning pins and the sliding positioning grooves.
Furthermore, a rotary positioning pin is arranged between the valve block mounting plate and the two end supporting blocks and used for overturning and positioning the valve block mounting plate.
Furthermore, a cylindrical pin is arranged between the two end supporting blocks and the bottom plate, and the utility model is used for positioning the two end supporting blocks on the bottom plate and has the advantages that:
the utility model discloses the advantage of comparing with conventional frock is: the device with a turnover structure is adopted, the valve block mounting plate can be turned over by 180 degrees by lifting the valve block mounting plate through an eccentric wheel, one-time clamping can be realized, and two upper and lower sealing planes are processed; the clamping is reliable, the sealing plane cannot be damaged by collision, pressure and scratch, and the parallelism of the two planes can be ensured.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic side view of the structure of the present invention;
FIG. 3 is a schematic top view of the structure of the present invention.
Reference numerals: the device comprises a bottom plate 1, two end supporting blocks 2, a middle supporting block 3, a valve block mounting plate 4, a slider supporting plate 5, an eccentric wheel 6, a rotating shaft weldment 7, a first pressing plate 8, a second pressing plate 9, a pressing rod 10, a rotating positioning pin 11, a sliding positioning pin 12, a gasket 13, an inner hexagonal socket head cap screw 14, an elastic cylindrical pin 15, a workpiece positioning pin 16, a workpiece 17, a screw 18, a screw 19, an M16 butterfly nut 20, an error-proofing pin 21, an inner hexagonal socket head cap screw 22, a cylindrical pin 23 and a positioning pin 24.
Detailed Description
Example (b):
the embodiments of the present invention will be described in detail with reference to the accompanying drawings, and it is to be understood that the described embodiments are merely a part of the embodiments of the utility model, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
A machining turnover type tool clamp comprises a bottom plate 1, a supporting block assembly, a driving assembly and a clamp assembly; the supporting block assembly comprises a plurality of fixed supporting blocks and a sliding block supporting plate 5, the fixed supporting blocks are fixedly arranged on the bottom plate 1 along the vertical direction, and the sliding block supporting plate 5 is connected with the fixed supporting blocks in a sliding manner and driven by the driving assembly to slide and reset; the clamp component comprises a valve block mounting plate 4, a first pressing plate 8 and a second pressing plate 9, wherein the valve block mounting plate 4 is rotatably mounted on the sliding block supporting plate 5 and comprises a clamp positioning surface and a workpiece positioning surface, the clamp positioning surface is matched with the first pressing plate 8 to horizontally fasten the valve block mounting plate 4 on the fixed supporting block, and the second pressing plate 9 and the workpiece positioning surface are arranged oppositely and used for positioning and clamping a workpiece 17. The tool clamp is used for horizontally clamping the workpiece 17 shown in the attached drawing to ensure the relative parallelism of two processing surfaces of the workpiece 17, adopts a turnover structure, realizes the processing of two upper and lower sealing planes of the workpiece 17 by one-time clamping while ensuring the precision processing, and improves the processing efficiency.
The flatness and the mutual parallelism of the main tool planes are one of the most critical elements of the utility model, and in the embodiment, the flatness of two large planes of the base plate 1 is guaranteed to be less than or equal to 0.008mm through flat grinding of a high-precision flat grinder. The fixed supporting block comprises two end supporting blocks 2 and a middle supporting block 3, and the bottom plate 1 and the two end supporting blocks 2 pass through
The cylindrical pin 23 is positioned and the M12 multiplied by 25 socket head cap screw 22 is tightened for fixed connection. The bottom plate 1 and the middle supporting block 3 are fixedly connected through tightening of M12X 25 hexagon socket head cap screws 22. After the assembly is finished, the supporting blocks 2 at the two ends and the middle supporting block 3 are ground by a high-precision surface grinding machine, and the parallelism is guaranteed to be less than or equal to 0.01 mm. The valve block mounting plate 4 needs to ensure the planeness and the parallelism of the upper and lower clamp positioning surfaces, and the planeness is ensured to be less than or equal to 0.008mm and the parallelism is ensured to be less than or equal to 0.008mm through the flat grinding of a high-precision flat grinder0.01mm。
Referring to the drawings, the driving assembly of the present embodiment includes two rotation shaft weldments 7 and two eccentric wheels 6, which are respectively disposed below the slider supporting plate 5, and the rotation shaft weldments 7 are sequentially passed through the eccentric wheels 6, the two end supporting blocks 2, the middle supporting block 3, the two end supporting blocks 2, and the eccentric wheels 6 and then positioned and tightly coupled by elastic cylindrical pins 15. When the workpiece 17 is processed on one side and needs to be converted to the other side, the M16 butterfly nut 20 is loosened by the rotating shaft weldment 7, and the first pressure plate 8 is taken out. The rotation shaft weldment 7 rotates 180 degrees to enable the eccentric wheel 6 to synchronously rotate 180 degrees, in the process of rotating the rotation shaft weldment 7, the sliding block supporting plate 5 is vertically lifted upwards along the sliding positioning pin 12 to drive the valve block mounting plate 4 to be continuously lifted until the valve block mounting plate is lifted to the highest position, the workpiece 17 is turned over by rotating the valve block mounting plate 4180 degrees, the positioning pins 24 at two ends of the valve block mounting plate 4 are used as rotating shafts during turning, and the valve block mounting plate is positioned by the rotation positioning pin 11 to ensure that the valve block mounting plate 4 is accurately turned in place. Then the rotating shaft weldment 7 is rotated 180 degrees and returned to the original position to enable the eccentric wheel 6 to synchronously rotate 180 degrees, in the rotation process of the rotating shaft weldment 7, the slide block supporting plate 5 vertically descends downwards along the sliding positioning pin 12 to drive the valve block mounting plate 4 to continuously descend until the valve block mounting plate 4 is tightly attached to the two end supporting blocks 2, and at the moment, the valve block mounting plate 4 is tightly pressed on the two end supporting blocks 2 through the screw 18, the first pressing plate 8, the pressing rod 10 and the M16 butterfly nut 20.
The two end supporting blocks 2 are provided with sliding positioning pins 12, the slider supporting plate 5 is provided with sliding positioning grooves, the sliding track direction of the slider supporting plate 5 is limited by the sliding positioning pins 12 and the sliding positioning grooves, the slider supporting plate 5 is limited by a gasket 13 and an M6 multiplied by 35 hexagon socket head cap screw 14 after passing through the positioning pin 24 and the sliding positioning pin 12 of the valve block mounting plate 4, and the gasket 13 is tightly attached to the end surface of the sliding positioning pin 12.
Referring to the drawings, the valve block mounting plate 4 of the present embodiment has two side surfaces, the shape of which matches with the corresponding side surfaces of the workpiece 17, and includes workpiece positioning pins 16 corresponding to the casting precast holes of the workpiece 17, and the workpiece 17 is pressed against the valve block mounting plate 4 by the second pressing plate 9, the screw 19, and the M16 butterfly nut 20, with the precast hole surface of the workpiece 17 as the positioning surface. The number of the workpiece positioning surfaces is set according to the size of the tool fixture, and the four groups of the workpiece positioning surfaces are set to be 8, so that 8 workpieces 17 can be clamped and processed simultaneously.
In order to ensure that the workpiece 17 is clamped in a correct direction, according to the structural characteristics of the workpiece 17, the workpiece positioning surface is provided with the error-proof pin 21, when the workpiece 17 is inserted into the workpiece positioning pin 16 in a wrong direction, the error-proof pin 21 abuts against the protruding part of the workpiece 17, so that the workpiece 17 cannot be inserted in a matching manner, an operator is reminded to replace the clamping direction of the workpiece 17, all the workpieces 17 are clamped and fixed in a correct and uniform direction, and the workpiece 17 is prevented from being scrapped due to the reason.
The foregoing is illustrative of the preferred embodiments of the present invention only and is not to be construed as limiting the claims. The utility model is not limited to the above embodiments, the specific construction of which allows variations, and in any case variations, which are within the scope of the utility model as defined in the independent claims.
Claims (10)
1. The utility model provides a convertible frock clamp of machining which characterized in that: the clamping device comprises a bottom plate, a supporting block assembly, a driving assembly and a clamp assembly; the supporting block assembly comprises a plurality of fixed supporting blocks and a sliding block supporting plate, the fixed supporting blocks are fixedly arranged on the bottom plate along the vertical direction, and the sliding block supporting plate is connected with the fixed supporting blocks in a sliding manner and driven by the driving assembly to slide and reset; the clamp component comprises a valve block mounting plate, a first pressing plate and a second pressing plate, the valve block mounting plate is rotatably mounted on the sliding block supporting plate and comprises a clamp positioning surface and a workpiece positioning surface, the clamp positioning surface is matched with the first pressing plate to horizontally fasten the valve block mounting plate on the upper end of the fixed supporting block, and the second pressing plate is arranged opposite to the workpiece positioning surface and used for positioning and clamping workpieces.
2. The convertible frock clamp of machining of claim 1, characterized in that: the fixed supporting blocks comprise two end supporting blocks and a middle supporting block, and the upper end faces and the lower end faces of the two end supporting blocks and the middle supporting block are parallel to the bottom plate.
3. The convertible frock clamp of machining of claim 2, characterized in that: the fixture positioning surface of the valve block mounting plate is a plane with the upper end and the lower end parallel to each other.
4. The convertible frock clamp of machining of claim 3, characterized in that: the valve block mounting plate is characterized in that the workpiece positioning surfaces of the valve block mounting plate are two side surfaces, the shapes of the two side surfaces are matched with the corresponding side surfaces of the workpiece, and the valve block mounting plate comprises positioning pins corresponding to the workpiece casting precast holes.
5. The convertible frock clamp of machining of claim 3, characterized in that: the number of the workpiece positioning surfaces is multiple, and the workpiece positioning surfaces are arranged on two sides of the valve block mounting plate respectively.
6. The convertible frock clamp of machining of claim 3, characterized in that: and a mistake-proofing pin is arranged on the workpiece positioning surface and used for limiting the insertion direction of the workpiece.
7. The convertible frock clamp of machining of claim 3, characterized in that: the driving assembly comprises a rotating shaft welding piece and eccentric wheels, the eccentric wheels are arranged below the sliding block supporting plate respectively, and the rotating shaft welding piece penetrates through the eccentric wheels, the two end supporting blocks, the middle supporting block, the two end supporting blocks and the eccentric wheels in sequence and then is positioned and connected in a tight fit mode through elastic cylindrical pins.
8. The convertible frock clamp of machining of claim 3, characterized in that: the sliding positioning pins are arranged on the supporting blocks at the two ends, the sliding positioning grooves are formed in the sliding block supporting plate, and the sliding track direction of the sliding block supporting plate is limited through the sliding positioning pins and the sliding positioning grooves.
9. The convertible frock clamp of machining of claim 3, characterized in that: and a rotary positioning pin is arranged between the valve block mounting plate and the supporting blocks at the two ends and used for overturning and positioning the valve block mounting plate.
10. The convertible frock clamp of machining of claim 3, characterized in that: and a cylindrical pin is arranged between the two end supporting blocks and the bottom plate and is used for positioning the two end supporting blocks on the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120485.6U CN216503474U (en) | 2021-09-03 | 2021-09-03 | Convertible frock clamp of machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122120485.6U CN216503474U (en) | 2021-09-03 | 2021-09-03 | Convertible frock clamp of machining |
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| Publication Number | Publication Date |
|---|---|
| CN216503474U true CN216503474U (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122120485.6U Active CN216503474U (en) | 2021-09-03 | 2021-09-03 | Convertible frock clamp of machining |
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| CN (1) | CN216503474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673438A (en) * | 2022-11-16 | 2023-02-03 | 瑞安市裕玺转向系统有限公司 | Automobile steering device outer tube column casing positioning production device and production method thereof |
-
2021
- 2021-09-03 CN CN202122120485.6U patent/CN216503474U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673438A (en) * | 2022-11-16 | 2023-02-03 | 瑞安市裕玺转向系统有限公司 | Automobile steering device outer tube column casing positioning production device and production method thereof |
| CN115673438B (en) * | 2022-11-16 | 2023-07-14 | 瑞安市裕玺转向系统有限公司 | Positioning production device and method for outer tube column casing of automobile steering gear |
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