CN215392700U - Clamping tool for double-sided finish milling of cylinder cover - Google Patents
Clamping tool for double-sided finish milling of cylinder cover Download PDFInfo
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- CN215392700U CN215392700U CN202122856039.1U CN202122856039U CN215392700U CN 215392700 U CN215392700 U CN 215392700U CN 202122856039 U CN202122856039 U CN 202122856039U CN 215392700 U CN215392700 U CN 215392700U
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- cylinder cover
- cylinder
- finish milling
- lifting frame
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- 238000003801 milling Methods 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 210000000078 claw Anatomy 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of cylinder cover machining, and provides a clamping tool for double-sided finish milling of a cylinder cover, which comprises a tool base, wherein a lifting frame driven by a lifting oil cylinder is slidably mounted on the tool base along the vertical direction, a guide conveying mechanism used for limiting and sliding the cylinder cover is arranged on the lifting frame, and a positioning mechanism used for stopping the cylinder cover is also arranged on one side of the lifting frame; the tool base is further provided with two sets of clamping mechanisms which are used for locking and fixing the cylinder cover in the machining state of the two sides of the cylinder cover respectively, each set of clamping mechanism comprises a plurality of supporting tables for supporting the cylinder cover and a pressing assembly for pressing the cylinder cover, and the supporting tables and the pressing assemblies are arranged on two sides of the lifting frame respectively. The utility model not only greatly reduces the double-sided finish milling processing cost of the cylinder cover, but also has simple and convenient disassembly and assembly operation of the cylinder cover, does not need to carry the cylinder cover between milling machines, further greatly improves the finish milling efficiency of the cylinder cover, and is convenient and practical.
Description
Technical Field
The utility model relates to the technical field of cylinder cover machining, in particular to a clamping tool for double-side finish milling of a cylinder cover.
Background
The cylinder head is a box-shaped part with a complex structure, and is provided with an air inlet valve seat hole, an air outlet valve seat hole, an air valve guide pipe hole, a spark plug mounting hole (a gasoline engine) or an oil injector mounting hole and the like, and a water jacket, an air inlet and outlet channel and a combustion chamber or a part of the combustion chamber are cast in the cylinder head. The cylinder cover is a mounting base body of the valve mechanism and also a sealing cover of the cylinder, has the function of sealing the cylinder, forms a combustion space together with the piston, bears the function of high-temperature and high-pressure gas, belongs to a key part, and has the advantages of complex structure, high precision requirement, complex processing technology and direct influence on the overall performance of the engine due to the processing quality.
After the cylinder cover is formed, two surfaces of the cylinder cover need to be subjected to finish milling so as to meet corresponding technical requirements. Due to the special structure of the cylinder cover, two sets of different clamping tools are needed to realize clamping and fixing during the two-side processing; at present, two different sets of clamping tools are generally installed on two milling machines respectively, when a cylinder head is subjected to finish milling, the cylinder head is clamped and fixed on the clamping tool of one milling machine, the milling machine is used for finish milling of one surface, after the finish milling of the surface is completed, the cylinder head is detached and carried to the clamping tool on the other milling machine for clamping and fixing, and then the finish milling of the other surface is carried out. This kind of finish milling mode needs two milling machines and two sets of different clamping frocks just can accomplish the finish milling processing of cylinder head face, and the use and the cost of maintenance of equipment are higher, in addition, need carry out the frequent dismouting transport of cylinder head in the course of working, and frequent dismouting transport operation is not only loaded down with trivial details inconvenient, wastes time and energy, and makes the finish milling inefficiency of cylinder head.
SUMMERY OF THE UTILITY MODEL
The present inventors have conducted intensive studies to overcome the above-identified drawbacks of the prior art, and as a result, have completed the present invention after having made a great deal of creative efforts.
Specifically, the technical problems to be solved by the present invention are: the clamping tool for double-sided finish milling of the cylinder cover is used for solving the technical problems that the existing double-sided finish milling mode of the cylinder cover is high in processing cost, complex and inconvenient in finish milling operation, time-consuming and labor-consuming, and low in processing efficiency.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a clamping tool for double-sided finish milling of a cylinder cover comprises a tool base, wherein a lifting frame driven by a lifting oil cylinder is slidably mounted on the tool base along the vertical direction, a guide conveying mechanism used for limiting sliding of the cylinder cover is arranged on the lifting frame, and a positioning mechanism used for stopping the cylinder cover is further arranged on one side of the lifting frame;
still be equipped with two sets respectively when realizing cylinder head two sides processing state on the frock base and lock fixed clamping machine to the cylinder head, every set clamping machine constructs all including a plurality of brace tables that are used for realizing the cylinder head bearing and a plurality of the assembly that compresses tightly that is used for realizing that the cylinder head is pressed and is held, just brace table with compress tightly the assembly respectively in the both sides setting of lifting the frame.
As an improved technical scheme, the lifting frame is slidably installed on the tool base along the vertical direction through a linear bearing and a guide rod, the lifting oil cylinder is fixedly installed on the tool base, and the end part of a piston rod of the lifting oil cylinder is connected with the bottom surface of the lifting frame.
As an improved technical scheme, the linear bearing and the guide rod are provided with two sets and respectively arranged on two sides of the lifting oil cylinder, the linear bearing is fixedly arranged on the tool base, the guide rod is movably inserted in the linear bearing along the vertical direction, and the top end of the guide rod is fixedly connected with the lifting frame.
As a modified technical scheme, direction conveying mechanism include fixed mounting in support bracing piece and guide bar on lifting the frame, bracing piece and guide bar all are equipped with two, two the bracing piece is close to respectively support the both ends setting of lifting the frame, two guide bar fixed mounting respectively in support the both ends of lifting the frame, the guide bar with the bracing piece parallels, and two have the interval with cylinder head looks adaptation between the guide bar.
As an improved technical scheme, the supporting rod is a cylindrical rod, one end, far away from the positioning mechanism, of each guide rod is provided with an inclined material guide surface, and a horn-mouth-shaped material guide opening convenient for the cylinder cover to be guided in is formed by the two guide rods through the material guide surfaces.
As an improved technical scheme, the positioning mechanism comprises a stop plate fixedly mounted on the lifting frame, and a cushion block is fixedly mounted on one side, close to the lifting frame, of the stop portion of the stop plate.
As an improved technical scheme, the pressing assembly comprises a hydraulic cylinder, a pressing claw and a connecting rod, the hydraulic cylinder is fixedly installed on the tool base, one end of the pressing claw is hinged to the end portion of a piston shaft of the hydraulic cylinder, the connecting rod is located between the pressing claw and the hydraulic cylinder, one end of the connecting rod is hinged to the hydraulic cylinder through an installation block, and the other end of the connecting rod is hinged to the pressing claw.
As an improved technical scheme, the corner positions of the tool base are provided with hanging rings.
After the technical scheme is adopted, the utility model has the beneficial effects that:
(1) the clamping tool for the double-sided finish milling of the cylinder cover is mounted on a milling machine through a tool base, when the clamping tool is used, the to-be-processed surface of the cylinder cover is placed on a support rod upwards, the to-be-processed surface of the cylinder cover is pushed to abut against a cushion block under the guiding action of a guide rod, then an oil cylinder is lifted to act, a lifting frame is driven to descend, after a support table of one set of clamping mechanism supports the cylinder cover, the oil cylinder is lifted to stop, finally, a hydraulic cylinder of the set of clamping mechanism acts to press and fix the cylinder cover through a pressing claw, and after the cylinder cover is pressed and fixed, the milling processing of the current surface of the cylinder cover can be carried out through the milling machine; when the previous processing is finished, the hydraulic cylinder in a pressing state resets, the fixation of the cylinder cover is released, then the cylinder is lifted to move, the lifting frame is lifted to the position that the bottom surface of the cylinder cover is higher than each component of the clamping mechanism, the cylinder cover with the processed surface can be pulled out along the guide conveying mechanism, after the cylinder cover is turned over, the other unprocessed surface of the cylinder cover is upward, the cylinder cover is placed on the support rod again, the steps above are repeated, after another set of clamping mechanism is used for pressing and fixing, the finish milling processing of the other surface of the cylinder cover can be carried out again, so the two-side finish milling processing of the cylinder cover can be completed, the cylinder cover with the processed surface is taken down from the clamping tool finally, the processing of the next cylinder cover is carried out again, and the sequential finish milling processing of the cylinder cover is realized.
The double-sided finish milling of the cylinder cover is achieved through the clamping tool, compared with a traditional finish milling mode, the double-sided finish milling of the cylinder cover can be achieved only by assembling the clamping tool through one finish milling machine tool, not only is the processing cost greatly reduced, but also the dismounting operation of the cylinder cover is simple and convenient, the carrying of the cylinder cover between milling machines is not needed, the finish milling efficiency of the cylinder cover is greatly improved, and the double-sided finish milling operation of the cylinder cover is simple, convenient and practical.
(2) The lifting frame is slidably mounted on the tool base through the linear bearing and the guide rod, so that the lifting frame can be lifted more stably under the driving of the lifting oil cylinder.
(3) The guide conveying mechanism is provided with the support for the cylinder cover through the support rod, and the guide for the sliding of the cylinder cover is realized through the guide rod, so that convenience is provided for feeding and discharging of the cylinder cover.
(4) The supporting rod adopts a cylindrical rod, and is in line contact with the cylinder cover while supporting the cylinder cover, so that the sliding of the cylinder cover is facilitated, and impurities such as scraps and the like generated in processing are not easy to accumulate; the two guide rods are convenient for the cylinder cover to be led in through the horn mouth-shaped material guide port formed by the material guide surface of the guide rods, and convenience is provided for the feeding of the cylinder cover.
(5) The cushion block arranged on the stop plate plays a role in protecting the cylinder cover while realizing stop positioning of the cylinder cover, and avoids damaging the cylinder cover due to collision during stop.
(6) After the cylinder cover is positioned and placed on the supporting table, the hydraulic cylinder acts to drive a piston rod of the hydraulic cylinder to extend out and drive a pressing end of the pressing claw to press downwards, so that the cylinder cover is pressed and fixed, and after the cylinder cover is machined, the hydraulic cylinder acts again to drive the piston rod of the hydraulic cylinder to contract and reset, so that the pressing and fixing of the cylinder cover can be released.
(7) The lifting ring arranged on the tool base is convenient for hoisting the clamping tool, and convenience is provided for mounting the tool on the milling machine.
Drawings
In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic view of the mounting structure of the lifting frame portion of the present invention;
FIG. 5 is a schematic structural view of a hold-down assembly of the present invention;
FIG. 6 is a schematic structural view of a clamped state of the cylinder head according to the present invention;
FIG. 7 is a schematic view of another perspective view of the cylinder head of the present invention in a clamped state;
reference numerals: 1-a tooling base; 2-lifting frame; 3-a linear bearing; 4-a guide rod; 5-lifting the oil cylinder; 6-supporting rods; 7-a guide rod; 8-a stopper plate; 9-cushion block; 10-a support table; 11-a hydraulic cylinder; 12-pressing the claw; 13-a connecting rod; 14-a hoisting ring; 15-cylinder head.
Detailed Description
The utility model is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.
As shown in fig. 1 to 7, the embodiment provides a clamping tool for double-sided finish milling of a cylinder cover, which includes a tool base 1, a lifting frame 2 driven by a lifting cylinder 5 is slidably mounted on the tool base 1 along a vertical direction, a guiding and conveying mechanism for limiting sliding of the cylinder cover is arranged on the lifting frame 2, and a positioning mechanism for stopping the cylinder cover is further arranged on one side of the lifting frame 2.
The tool base 1 is further provided with two sets of clamping mechanisms which are used for locking and fixing the cylinder cover in the machining state of the two sides of the cylinder cover respectively, each set of clamping mechanism comprises a plurality of supporting tables 10 used for supporting the cylinder cover and a plurality of pressing assemblies used for pressing and holding the cylinder cover, and the supporting tables 10 and the pressing assemblies are arranged on two sides of the lifting frame 2 respectively.
The lifting frame 2 is slidably mounted on the tooling base 1 along the vertical direction through the linear bearing 3 and the guide rod 4, the lifting oil cylinder 5 is fixedly mounted on the tooling base 1, and the end part of the piston rod of the lifting oil cylinder 5 is connected with the bottom surface of the lifting frame 2.
In the embodiment, two sets of linear bearings 3 and two sets of guide rods 4 are arranged and are respectively arranged at two sides of the lifting oil cylinder 5, the linear bearings 3 are fixedly arranged on the tool base 1, the guide rods 4 are movably inserted in the linear bearings 3 along the vertical direction, and the top ends of the guide rods 4 are fixedly connected with the lifting frame 2; the linear bearing 3 and the guide rod 4 are used for realizing the sliding installation of the lifting frame 2 on the tool base 1, so that the lifting frame 2 is more stable to lift under the driving of the lifting oil cylinder 5.
The guide conveying mechanism comprises two support rods 6 and two guide rods 7 which are fixedly arranged on the lifting frame 2, the two support rods 6 and the two guide rods 7 are respectively arranged close to two ends of the lifting frame 2, the two guide rods 7 are respectively and fixedly arranged at two ends of the lifting frame 2, the guide rods 7 are parallel to the support rods 6, and a space matched with the cylinder cover 15 is formed between the two guide rods 7; the guide conveying mechanism is provided with the support for the cylinder cover 15 through the support rod 6, and the guide for the sliding of the cylinder cover 15 is realized through the guide rod 7, so that convenience is brought to loading and unloading of the cylinder cover.
In this embodiment, the support rod 6 is a cylindrical rod, and is in line contact with the cylinder head 15 while supporting the cylinder head 15, so that the cylinder head 15 can slide conveniently, and impurities such as scraps generated during machining are not easily accumulated.
In this embodiment, one end of the guide rod 7, which is far away from the positioning mechanism, is provided with an inclined material guiding surface, and the two guide rods 7 form a bell-mouth-shaped material guiding opening through the material guiding surface, which is convenient for the cylinder cover 15 to guide in, so that convenience is provided for the feeding of the cylinder cover.
The positioning mechanism comprises a stop plate 8 fixedly arranged on the lifting frame 2, and a cushion block 9 is fixedly arranged on one side, close to the lifting frame 2, of the stop part of the stop plate 8; in this embodiment, the cushion block 9 is a copper block. The cushion block 9 arranged on the stop plate 8 plays a role in protecting the cylinder cover while realizing stop positioning of the cylinder cover, and avoids damaging the cylinder cover due to collision during stop.
The pressing assembly comprises a hydraulic cylinder 11, a pressing claw 12 and a connecting rod 13, the hydraulic cylinder 11 is fixedly installed on the tooling base 1, one end of the pressing claw 12 is hinged with the end part of a piston shaft of the hydraulic cylinder 11, the connecting rod 13 is located between the pressing claw 12 and the hydraulic cylinder 11, one end of the connecting rod 13 is hinged with the hydraulic cylinder 11 through an installation block, and the other end of the connecting rod 13 is hinged with the pressing claw 12; after the cylinder cover is positioned on the support table 10, the hydraulic cylinder 11 acts to drive the piston rod of the cylinder cover to extend out and drive the pressing end of the pressing claw 12 to press downwards, so that the cylinder cover is pressed and fixed, and after the cylinder cover is machined, the hydraulic cylinder 11 acts again to drive the piston rod of the cylinder cover to contract and reset, so that the pressing and fixing of the cylinder cover can be released.
In this embodiment, the corner position of the fixture base 1 is provided with the hanging ring 14, and the hanging ring 14 is convenient for hoisting the clamping fixture, so that convenience is provided for installing the fixture on a milling machine.
The clamping tool for the double-sided finish milling of the cylinder cover is based on the structure, the mounting of the clamping tool on a milling machine is realized through the tool base 1, when the clamping tool is used, the surface to be processed of the cylinder cover 15 is placed on the support rod 6 upwards, the clamping tool is pushed into the support block 9 under the guiding action of the guide rod 7, then the lifting oil cylinder 5 acts to drive the lifting frame 2 to descend, after the support table 10 of one set of clamping mechanism supports the cylinder cover 15, the lifting oil cylinder 5 stops, finally, the hydraulic cylinder 11 of the set of clamping mechanism acts to press, hold and fix the cylinder cover 15 through the pressing claw 12, and after the cylinder cover 15 is pressed, held and fixed, the milling machine can be used for finish milling of the front surface of the cylinder cover 15; when the previous processing is finished, the hydraulic cylinder 11 in a pressing state is reset, the fixation of the cylinder cover 15 is released, then the oil cylinder 5 is lifted to move, the lifting frame 2 is lifted to the position that the bottom surface of the cylinder cover 15 is higher than each component of the clamping mechanism, the cylinder cover with one processed surface can be pulled out along the guide conveying mechanism, after the cylinder cover 15 is turned over, the other unprocessed surface of the cylinder cover 15 faces upwards and is placed on the support rod 6 again, the steps above are repeated, after the other clamping mechanism is used for pressing and fixing, the finish milling of the other surface of the cylinder cover 15 can be carried out again, so that the finish milling of the two surfaces of the cylinder cover 15 can be finished, finally, the cylinder cover 15 with the finished processing is taken down from the clamping tool, the processing of the next cylinder cover can be carried out again, and the processes are repeated, and the ordered finish milling of the cylinder cover is realized.
The double-sided finish milling of the cylinder cover is achieved through the clamping tool, compared with a traditional finish milling mode, the double-sided finish milling of the cylinder cover can be achieved only by assembling the clamping tool through one finish milling machine tool, not only is the processing cost greatly reduced, but also the dismounting operation of the cylinder cover is simple and convenient, the carrying of the cylinder cover between milling machines is not needed, the finish milling efficiency of the cylinder cover is greatly improved, and the double-sided finish milling operation of the cylinder cover is simple, convenient and practical.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (7)
1. The utility model provides a two-sided finish milling of cylinder head is with clamping frock which characterized in that: the fixture comprises a fixture base, wherein a lifting frame driven by a lifting oil cylinder is slidably mounted on the fixture base along the vertical direction, a guide conveying mechanism used for limiting and sliding a cylinder cover is arranged on the lifting frame, and a positioning mechanism used for stopping the cylinder cover is further arranged on one side of the lifting frame;
still be equipped with two sets respectively when realizing cylinder head two sides processing state on the frock base and lock fixed clamping machine to the cylinder head, every set clamping machine constructs all including a plurality of brace tables that are used for realizing the cylinder head bearing and a plurality of the assembly that compresses tightly that is used for realizing that the cylinder head is pressed and is held, just brace table with compress tightly the assembly and equally divide do not in the both sides setting of lifting the frame.
2. The clamping tool for double-sided finish milling of the cylinder cover according to claim 1, characterized in that: the lifting frame is slidably mounted on the tooling base along the vertical direction through a linear bearing and a guide rod, the lifting oil cylinder is fixedly mounted on the tooling base, and the end part of a piston rod of the lifting oil cylinder is connected with the bottom surface of the lifting frame.
3. The clamping tool for double-sided finish milling of the cylinder cover according to claim 2, characterized in that: the direction conveying mechanism include fixed mounting in support bracing piece and guide bar on lifting the frame, bracing piece and guide bar all are equipped with two, two the bracing piece is close to respectively lift the both ends setting of frame, two the guide bar respectively fixed mounting in lift the both ends of frame, the guide bar with the bracing piece parallels, and two the interval that has with cylinder head looks adaptation between the guide bar.
4. The clamping tool for double-sided finish milling of the cylinder cover according to claim 3, characterized in that: the support rod is a cylindrical rod, one end of the guide rod, which is far away from the positioning mechanism, is provided with an inclined material guide surface, and the two guide rods form a horn mouth-shaped material guide opening through the material guide surface, which is convenient for the cylinder cover to be guided in.
5. The clamping tool for double-sided finish milling of the cylinder cover according to claim 4, characterized in that: the positioning mechanism comprises a stop plate fixedly installed on the lifting frame, and a cushion block is fixedly installed on one side, close to the lifting frame, of the stop portion of the stop plate.
6. The clamping tool for double-sided finish milling of the cylinder cover according to claim 5, characterized in that: the pressing assembly comprises a hydraulic cylinder, a pressing claw and a connecting rod, the hydraulic cylinder is fixedly installed on the tooling base, one end of the pressing claw is hinged to the end portion of a piston shaft of the hydraulic cylinder, the connecting rod is located between the pressing claw and the hydraulic cylinder, one end of the connecting rod is hinged to the hydraulic cylinder through an installation block, and the other end of the connecting rod is hinged to the pressing claw.
7. The clamping tool for double-sided finish milling of the cylinder cover according to any one of claims 1 to 6, characterized in that: and hoisting rings are arranged at the corner positions of the tool base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122856039.1U CN215392700U (en) | 2021-11-22 | 2021-11-22 | Clamping tool for double-sided finish milling of cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122856039.1U CN215392700U (en) | 2021-11-22 | 2021-11-22 | Clamping tool for double-sided finish milling of cylinder cover |
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| Publication Number | Publication Date |
|---|---|
| CN215392700U true CN215392700U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122856039.1U Active CN215392700U (en) | 2021-11-22 | 2021-11-22 | Clamping tool for double-sided finish milling of cylinder cover |
Country Status (1)
| Country | Link |
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| CN (1) | CN215392700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952349A (en) * | 2022-07-28 | 2022-08-30 | 潍坊思博精工科技有限公司 | Clamping tool for hydraulic valve body machining and hydraulic valve body finish machining device |
-
2021
- 2021-11-22 CN CN202122856039.1U patent/CN215392700U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114952349A (en) * | 2022-07-28 | 2022-08-30 | 潍坊思博精工科技有限公司 | Clamping tool for hydraulic valve body machining and hydraulic valve body finish machining device |
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Denomination of utility model: A clamping fixture for double-sided precision milling of cylinder head Granted publication date: 20220104 Pledgee: Weifang Jinma road sub branch of Bank of Weifang Co.,Ltd. Pledgor: WEIFANG SIBO PRECISION TECHNOLOGY Co.,Ltd. Registration number: Y2024980007539 |