CN221065298U - Special-shaped thin-wall cylinder body machining clamp - Google Patents
Special-shaped thin-wall cylinder body machining clamp Download PDFInfo
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- CN221065298U CN221065298U CN202323066299.4U CN202323066299U CN221065298U CN 221065298 U CN221065298 U CN 221065298U CN 202323066299 U CN202323066299 U CN 202323066299U CN 221065298 U CN221065298 U CN 221065298U
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- plate body
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- cylinder body
- positioning
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- 238000003754 machining Methods 0.000 title claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 18
- 238000007872 degassing Methods 0.000 claims description 4
- 239000004484 Briquette Substances 0.000 claims 1
- 238000007373 indentation Methods 0.000 abstract description 5
- 238000007514 turning Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 210000003414 extremity Anatomy 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010066054 Dysmorphism Diseases 0.000 description 1
- 206010024500 Limb malformation Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 210000003141 lower extremity Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to a special-shaped thin-wall cylinder body machining clamp which comprises a main body and a pressing block, wherein the main body is provided with a positioning cavity, the positioning cavity is axially arranged, the bottom of the positioning cavity is provided with a supporting step, the upper part of the positioning cavity is provided with a positioning hole, two sides of the positioning cavity are provided with side walls, the pressing block comprises a first plate body and a second plate body, the first plate body is connected with the second plate body, the first plate body is tightly pressed above a cylinder body, the second plate body is tightly pressed on the side part of the cylinder body, the second plate body corresponds to the side walls, positioning pieces are arranged in the positioning hole, and the positioning pieces are tightly pressed on the first plate body and are axially arranged at intervals along the positioning cavity. The special-shaped thin-wall cylinder body machining clamp improves the machining precision and the behavior tolerance of parts, and is better in economical efficiency; the deformation of the thin-wall and deep-hole parts during processing can be better controlled, the clamping indentation of the appearance of the parts is reduced, and the surface quality of the parts is improved.
Description
Technical Field
The utility model relates to the technical field of machining of special-shaped thin-wall parts, in particular to a machining clamp for a special-shaped thin-wall cylinder body.
Background
Along with the progress of scientific technology, the lower limb artificial limb in the medical appliance industry replaces a crutch, so that not only is the defect brought by limb defects made up in appearance and function, but also the amputee can freely participate in normal work and life by using both hands. The damping cylinder is a core component of the artificial limb joint, most parts in the product are made of aluminum alloy materials, and the damping cylinder has the advantages of light weight, compact structure and the like, wherein the cylinder body parts have the characteristics of special shapes, thin walls, deep holes, high requirements on dimensional accuracy and the like, the surface quality of the parts has high requirements (clamping marks caused by clamping are as small as possible), and when the cylinder body deep holes are machined, the clamping fixture is designed due to the irregular shapes of the parts, so that deformation factors of machining and clamping are reduced, and the machining accuracy of inner holes is a difficulty to be overcome; meanwhile, the convenience in clamping and reliable positioning of parts during batch production are considered, and the influence on appearance quality is small.
Disclosure of utility model
The utility model provides the special-shaped thin-wall cylinder body processing clamp which can solve the problems of deformation factors and indentation in the processing process and improve the processing efficiency and the processing precision of parts.
The specific technical scheme is as follows: the utility model provides a dysmorphism thin wall cylinder body adds clamping apparatus, includes main part and briquetting, and the main part has the location chamber, and the location chamber axial sets up, and the bottom of location chamber is equipped with the support step, and the upper portion of location chamber is equipped with the locating hole, and the location chamber both sides have the lateral wall, the briquetting includes first plate body and second plate body, and first plate body and second plate body are connected, and first plate body compresses tightly the cylinder body top, and the second plate body compresses tightly the cylinder body lateral part, and the second plate body corresponds with the lateral wall, be equipped with the setting element in the locating hole, the setting element compresses tightly first plate body, and a plurality of setting elements set up along location chamber axial interval.
In some embodiments, the body is a cylindrical structure, the cylinder being constrained to a rotational center of the body.
In some embodiments, the support steps are two, and a groove is arranged between the two support steps.
In some embodiments, the two pressing blocks are symmetrically arranged on two sides of the rotation center and correspond to the supporting steps, the two locating pieces are two groups, and each group of locating pieces corresponds to the pressing blocks.
In some embodiments, an abutting part is arranged below the positioning cavity, and a degassing groove is arranged between the abutting part and the supporting step.
In some embodiments, the body and the compacts are the same length.
In some embodiments, the first plate and the second plate are disposed vertically.
In some embodiments, the center of rotation coincides with the center of the inner barrel of the cylinder.
The utility model has the technical effects that: 1. through reliably positioning and fixing the part, the inner hole is processed by clamping twice without loosening the compression screw, and the tool and the part are regarded as a whole, so that the processing precision and the behavior tolerance of the part are improved, and the economy is better. 2. The deformation of the thin-wall and deep-hole parts during processing can be better controlled, the clamping indentation of the appearance of the parts is reduced, and the surface quality of the parts is improved.
Drawings
Fig. 1 is a schematic diagram of a special-shaped thin-wall cylinder body processing clamp according to an embodiment of the utility model in use.
Fig. 2 is a schematic diagram of a fixture for clamping a cylinder body during processing of a special-shaped thin-wall cylinder body according to an embodiment of the utility model.
Fig. 3 is a schematic diagram of the body of an embodiment of the present utility model.
Fig. 4 is a schematic view of a compact of an embodiment of the present utility model.
Fig. 5 is a schematic view of a cylinder of an embodiment of the present utility model.
Detailed Description
The essential features and advantages of the utility model will be further elucidated with reference to the examples, without however being limited to the embodiments listed.
As shown in fig. 1 to 5, a processing clamp for a profiled thin-walled cylinder body of the present embodiment includes a main body 1 and a pressing block 2, the main body 1 has a positioning cavity 11, the positioning cavity 11 is axially disposed, and the positioning cavity is used for positioning the cylinder body 100. The bottom of the positioning cavity 11 is provided with a supporting step 12, the upper part of the positioning cavity 11 is provided with a positioning hole 13, two sides of the positioning cavity 11 are provided with side walls 14, and the cylinder body 100 is supported by the supporting step 12 after being placed in the positioning cavity 11. The briquetting 2 includes first plate body 21 and second plate body 22, and first plate body 21 and second plate body 22 are connected, and first plate body 21 compresses tightly cylinder body 100 top, and second plate body 22 compresses tightly cylinder body 100 lateral part, and second plate body 22 corresponds with lateral wall 14, be equipped with setting element 3 in the locating hole 13, setting element 3 compresses tightly first plate body 21, and a plurality of setting elements 3 set up along the axial interval of location chamber 11, and setting element 3 of this embodiment is holding screw. In the technical scheme, the main hole 101 of the cylinder body 100 is machined by adopting a numerical control lathe, and a hydraulic chuck of the machine tool needs to be bored into circles by three claws before clamping parts, so that the positioning reliability of the clamping tool at each time is ensured; then the part is put into a turning fixture and fixed by a set screw, the left end size, the roughness and the like of the part are processed, the right end size, the roughness and the like of the part are processed by turning around and clamping under the condition of not loosening the set screw, the scheme of the embodiment is that the part and the fixture are positioned and fixed by the set screw, and the left end and the right end of the part are processed together, and can be regarded as a whole for processing. Through the technical scheme, after the turning tool is implemented, the sizes of parts in the batch can meet the drawing requirement, particularly the cylindricity deformation of holes A2 and A3 of the inner holes is reduced to be within 0.01, the consistency of the sizes of the holes in numerical control machining is better, and the appearance surface quality of the parts is greatly improved; the clamping and processing efficiency of the parts is improved by nearly 2 times compared with other clamping modes, the correction time of the clamping fixture before processing and the turning clamping in processing in the process method is faster, and the labor intensity of operators is reduced.
In this embodiment, the main body 1 has a cylindrical structure, and the cylinder 100 is constrained to the rotation center O of the main body 1. The number of the supporting steps 12 is two, and a groove 15 is arranged between the two supporting steps 12, so that the cylinder body can be conveniently accommodated. The number of the pressing blocks 2 is two, the two pressing blocks 2 are symmetrically arranged on two sides of the rotation center O and correspond to the supporting steps 12, the number of the positioning pieces 3 is two, and each positioning piece 3 corresponds to the pressing block. After the cylinder body is installed, two pressing blocks are adopted, the length of the pressing blocks is equal to that of the turning clamp, seven-shaped pressing plates with the thickness of about 2.5 are symmetrically attached to shoulder blade surfaces 101 at two ends of an arc of a part, six screws are uniformly distributed and pressed on the pressing blocks 2 and then are conducted onto the part, as the thickness of the pressing blocks is thinner, the pressing blocks are stressed to generate micro-deformation so as to buffer clamping indentation of the screws on the surface of the part, and meanwhile, the pressing force is applied to the thicker part of the contour edge of the cylinder body, so that the main hole of the part is avoided, and the clamping deformation influence on the main hole is reduced to the minimum. The lower part of the positioning cavity 11 is provided with an abutting part 16, a degassing groove 17 is arranged between the abutting part 16 and the supporting step 12, two degassing grooves are added at the root parts of the width direction and the bottom surface of the clamp, interference with square edges of the part is avoided, and the part is reliably positioned on the side surface and the bottom surface. The length of the main body 1 is the same as that of the pressing block 2, so that the positioning is convenient. The first plate 21 and the second plate 22 are vertically arranged. The rotation center O coincides with the center of the inner hole of the cylinder body.
The following is the processing method of the clamp:
Numerical control lathe processing, before the part is loaded into the frock, with part edge burr get rid of cleanly, weathers the dregs such as frock, part's iron fillings, and it is equivalent to load into the part, stretches out frock length, and the briquetting is pasted on the part shoulder blade face, and screw compresses tightly difficultly too big, beats table alignment frock excircle, terminal surface runout and is less than or equal to 0.02, tool setting part terminal surface.
(1) Finish turning the left end face of the part, about turning 0.5, and considering the dimension 25+0.1-0.1;
(2) Coarse and fine boring hole size, roughness Ra0.8, cylindricity 0.05 and conicity less than or equal to 0.005 (technological requirement) [ in order to control the deformation of thin-wall parts, a nonferrous metal processing blade with a blade tip R0.2mm is selected, the linear speed is 65-70 min, the cutting depth is 0.2-0.5mm, the feed amount is 0.1-0.2 mm/r, and the cooling amount is increased ]
(3) Boring an A1 threaded bottom hole, and chamfering an orifice by 0.5x45 degrees;
(4) Digging a thread retracting groove, digging a 3-X groove, chamfering two edges of the groove by 0.5x30 degrees according to the figure, and simultaneously ensuring axial dimension holes A7, A8 and A9;
(5) The internal thread hole A1 is shown in the figure.
Before turning and clamping, the total length of the part is measured, then a turning clamp is clamped, the excircle and the end face runout of a marking and aligning tool are less than or equal to 0.02, and the end face of the part is aligned.
(6) Turning the end face to ensure the total length;
(7) Coarse and fine boring holes A3, roughness Ra1.6 and conicity less than or equal to 0.005 (technological requirement) [ in order to control the deformation of thin-wall parts, a nonferrous metal processing blade with a blade tip R0.2mm is selected, the linear speed is 65-70 min, the cutting depth is 0.2-0.5 mm, the feed amount is 0.1-0.2 mm/r, and the cooling capacity is increased ]
(8) Boring spigot A4, A10, boring spigot dimension A5, A11;
(9) Digging inner grooves A6 and A12, and ensuring an axial direction A10;
(10) Chamfering according to the figure, edge blunting and deburring.
The special-shaped thin-wall cylinder body machining clamp has the following advantages: 1. through reliably positioning and fixing the part, the inner hole is processed by clamping twice without loosening the compression screw, and the tool and the part are regarded as a whole, so that the processing precision and the behavior tolerance of the part are improved, and the economy is better. 2. The deformation of the thin-wall and deep-hole parts during processing can be better controlled, the clamping indentation of the appearance of the parts is reduced, and the surface quality of the parts is improved.
It should be noted that the foregoing description of the preferred embodiments is merely illustrative of the technical concept and features of the present utility model, and is not intended to limit the scope of the utility model, as long as the scope of the utility model is defined by the claims and their equivalents. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (8)
1. The utility model provides a special-shaped thin wall cylinder body adds clamping apparatus, its characterized in that, including main part and briquetting, the main part has the location chamber, and the location chamber axial sets up, and the bottom of location chamber is equipped with the supporting step, and the upper portion of location chamber is equipped with the locating hole, and the location chamber both sides have the lateral wall, the briquetting includes first plate body and second plate body, and first plate body and second plate body are connected, and first plate body compresses tightly the cylinder body top, and the second plate body compresses tightly the cylinder body lateral part, and the second plate body corresponds with the lateral wall, be equipped with the setting element in the locating hole, the setting element compresses tightly first plate body, and a plurality of setting elements set up along location chamber axial interval.
2. The profiled thin-walled cylinder tooling jig of claim 1 wherein the body is of cylindrical configuration with the cylinder constrained to a rotational center of the body.
3. The profiled thin-walled cylinder machining clamp of claim 2 wherein there are two support steps with a groove therebetween.
4. The special-shaped thin-wall cylinder body machining clamp according to claim 3, wherein two pressing blocks are symmetrically arranged on two sides of the rotation center and correspond to the supporting steps, two groups of positioning pieces are arranged, and each group of positioning pieces corresponds to the pressing block.
5. The special-shaped thin-wall cylinder body machining clamp according to claim 4, wherein an abutting part is arranged below the positioning cavity, and a degassing groove is formed between the abutting part and the supporting step.
6. The profiled thin-walled cylinder tooling clamp of claim 5 wherein the body and the briquette are the same length.
7. The profiled thin-walled cylinder block machining fixture of claim 6, wherein the first plate and the second plate are vertically disposed.
8. The profiled thin-walled cylinder machining fixture of claim 7 wherein the center of rotation coincides with the center of the inner cylinder of the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323066299.4U CN221065298U (en) | 2023-11-14 | 2023-11-14 | Special-shaped thin-wall cylinder body machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323066299.4U CN221065298U (en) | 2023-11-14 | 2023-11-14 | Special-shaped thin-wall cylinder body machining clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221065298U true CN221065298U (en) | 2024-06-04 |
Family
ID=91258958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323066299.4U Active CN221065298U (en) | 2023-11-14 | 2023-11-14 | Special-shaped thin-wall cylinder body machining clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221065298U (en) |
-
2023
- 2023-11-14 CN CN202323066299.4U patent/CN221065298U/en active Active
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