CN211102841U - Clamping structure of thin-walled piece - Google Patents
Clamping structure of thin-walled piece Download PDFInfo
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- CN211102841U CN211102841U CN201922187507.3U CN201922187507U CN211102841U CN 211102841 U CN211102841 U CN 211102841U CN 201922187507 U CN201922187507 U CN 201922187507U CN 211102841 U CN211102841 U CN 211102841U
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Abstract
The utility model provides a clamping structure of thin wall spare, the clamping structure is provided with base station and apron, and the base station includes the base and upwards bellied boss from the base center to it is fixed with boss and apron through running through the fixing device that the apron stretches into in the boss, and the mode of centre gripping realizes the clamping to thin wall spare about the adoption, not only can realize quick clamping, makes thin wall spare vibration not take place in the course of working moreover, can ensure the plane degree after the thin wall spare processing, can satisfy the requirement of semiconductor parts processing better.
Description
Technical Field
The utility model relates to a spare part processing technology field especially relates to a clamping structure of thin wall spare.
Background
Thin-wall parts have been increasingly used in various industrial sectors because of their light weight, material saving, compact structure, etc. However, the thin-walled parts are difficult to machine because the thin-walled parts have poor rigidity and strength, are very easy to deform during machining, and are difficult to ensure the machining quality of the parts. There are many factors affecting the machining precision of thin-wall parts, but they are summarized as the following three main aspects: (1) deformation under stress; (2) deforming by heating; (3) and (5) vibrating and deforming.
CN106216724A discloses a rapid turning clamp for thin-walled parts with stepped fan-shaped soft claws, which alleviates the problem of insufficient clamping force of the original clamp to a certain extent, but the clamp still adopts a method of clamping the thin-walled parts from the periphery, so that the thin-walled parts are easy to deform in the processing process.
CN103447851A discloses an anti-deformation clamp for lathing an annular thin-walled workpiece, which uses the circumference of a clamp body to form the inner circumferential surface of the thin-walled workpiece, so as to clamp the thin-walled workpiece.
CN109333092A discloses an annular thin-wall part clamp, which adopts three press blocks to clamp an annular thin-wall part, but in the method, the way of three press blocks makes each part on the surface of the thin-wall part stressed unevenly and deformed easily during processing.
Therefore, a clamping structure capable of uniformly stressing all parts on the surface of the thin-wall part is needed, and a guarantee is provided for the machining process of the thin-wall part.
SUMMERY OF THE UTILITY MODEL
In view of the problem that exists among the prior art, the utility model provides a clamping structure of thin wall spare, the clamping structure is fixed with boss and apron through running through the fixing device that the apron stretches into in the boss of base station, realizes the clamping to thin wall spare, adopts the mode of centre gripping all around than prior art, can ensure that thin wall spare stable cutting does not produce the vibration in the course of working, and thin wall spare is difficult for appearing warping, can effectively ensure the plane degree of product, can realize quick clamping moreover, can use in semiconductor spare part processing field better, has better industrial application prospect.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a clamping structure of a thin-wall part, which comprises a base station and a cover plate; the base station comprises a base and a boss protruding upwards from the center of the base; the cover plate is arranged on the boss; the clamping structure further comprises a fixing device penetrating through the cover plate and extending into the boss.
The utility model provides a clamping structure of thin wall spare realizes the clamping to thin wall spare through the upper and lower centre gripping mode that adopts apron and boss, makes thin wall spare surface atress even, does not produce the vibration in the course of working, is difficult for appearing warping, can ensure the plane degree of processing back thin wall spare, and this clamping constructional device is simple, and convenient operation can realize the clamping of thin wall spare fast, has higher industrial application and worth.
The utility model discloses be connected no special restriction to clamping structure and milling machine or lathe, can adopt the structure that any that the skilled person in the art is familiar can be used to be connected clamping structure and milling machine lathe, for example can be screw rod connection T type piece, fix on the workstation or use vacuum chuck etc. through T type groove.
The utility model discloses cross sectional shape to apron, base station and boss does not have the restriction, and its concrete shape depends on the structure of thin wall spare, for example can be rectangle, circular or triangle-shaped, and wherein, the apron should be the same with the shape of boss to can realize the centre gripping to thin wall spare, the shape of base station can be the same with the shape of apron and boss, also can be different with the shape of apron and boss.
Preferably, the cover plate is an integral solid cover plate, and the shape of the cover plate is not annular, so that the surface stress of the thin-walled part is more uniform.
Preferably, the cross-section of the cover plate and the boss is circular.
Preferably, the diameter of the boss is 0.05-0.1 mm smaller than the outer diameter of the thin-wall part, for example, 0.05mm, 0.06mm, 0.07mm, 0.08mm, 0.09mm or 0.1 mm.
The utility model discloses the external diameter that sets up the cylinder limit of boss than thin wall spare is little, makes thin wall spare and clamping structure clamping easier, and inject it at little 0.05 ~ 0.1mm, and it is convenient not only to ensure the clamping, guarantees the fixed action of clamping structure to thin wall spare moreover, prevents that it from adding man-hour emergence vibration.
The thickness of the base is 10-20 mm, for example, 10mm, 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, 14.5mm, 15mm, 15.5mm, 16mm, 16.5mm, 17mm, 17.5mm, 18mm, 18.5mm, 19mm, 19.5mm or 20.0mm, preferably 14-16 mm.
Preferably, a groove is arranged on the base of the base platform.
The utility model discloses recess on the base can make the thin wall spare insert wherein, realizes the clamping effect to the thin wall spare better, makes in the course of working, and the thin wall spare is difficult for producing deformation and vibration, effectively ensures the plane degree and the circularity on processing back thin wall spare surface.
The groove is arranged at the edge of the base.
The utility model discloses do not do special restriction to the width of recess, adopt different recess widths according to the thickness of different thin wall spare, generally than the thickness width 0.05 ~ 0.2mm of thin wall spare.
Preferably, the width of the groove is 3-10 mm, such as 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm, 8mm, 8.5mm, 9mm, 9.5mm or 10mm, preferably 4-8 mm.
The depth of the groove is 0.2-0.4 mm, for example, 0.2mm, 0.22mm, 0.23mm, 0.25mm, 0.27mm, 0.28mm, 0.3mm, 0.32mm, 0.35mm, 0.38mm or 0.4mm, preferably 0.2-0.3 mm.
Preferably, the base is made of aluminum alloy or stainless steel, and preferably aluminum alloy 6061.
Preferably, the thickness of the cover plate is 5-15 mm, for example, 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm or 15mm, preferably 8-12 mm.
The diameter of the cover plate is larger than the inner diameter of the thin-wall part.
The diameter of the cover plate is smaller than the outer diameter of the thin-wall part.
The utility model discloses the diameter ratio of control apron is little than the external diameter of thin wall spare, reserves the space of processing operation for thin wall spare.
Preferably, the diameter of the cover plate is 0.2-1 mm smaller than the outer diameter of the thin-wall member, for example, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm, preferably 0.4-0.8 mm.
The utility model discloses the preferred diameter control ratio thin wall spare that will lap is 0.2 ~ 1mm less than the external diameter, not only reserves out processing operation space, makes apron and boss enough make thin wall spare man-hour not produce vibration and deformation to the clamping part of thin wall spare moreover.
Preferably, the material of the cover plate comprises aluminum alloy or stainless steel, and preferably aluminum alloy 6061.
Preferably, a cover plate hole penetrating through the cover plate is formed in the cover plate.
The cover plate holes are distributed on the surface of the cover plate at equal angles.
Preferably, the radial distance from the circle center of the cover plate hole to the circumference of the cover plate is 14-24 mm, for example, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm or 24mm, and preferably 16-22 mm.
Preferably, the boss upper surface of base station is provided with the boss hole with apron hole assorted.
The boss holes are distributed on the upper surface of the boss at equal angles.
Preferably, the radial distance from the center of the boss hole to the circumference of the boss is 14-25 mm, such as 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm or 25mm, preferably 17-23 mm.
Preferably, the fixing means comprises a screw.
The diameter of the screw is M6-M10, for example, M6, M8 or M10, preferably M8.
The utility model can also adopt English screw thread, and only corresponding cover plate holes or boss holes are arranged on the cover plate or the boss.
The screw rod penetrates through the cover plate hole of the cover plate and is arranged in the boss hole of the boss to fix the base station and the cover plate.
The utility model provides an application method of clamping structure of thin wall spare includes: and placing the thin-wall part on the base station, covering the cover plate on the thin-wall part and the base station, and fixing the cover plate and the base station by using a fixing device.
The utility model discloses a place thin wall spare after on the base station again with apron lid on it to utilize fixing device to be fixed with the base station with the apron, realize apron and base station to the clamping action of thin wall spare, clamping easy operation, and do not produce deformation and vibration in the even course of working of thin wall spare surface atress, can ensure the plane degree and the off-the-shelf circularity on finished product surface.
The utility model discloses the preferred thin wall spare that is applicable to including loop configuration, this loop configuration can be ring shape, rectangular ring shape or annular structures such as triangle ring shape, and this is because the loop configuration adopts the centre gripping mode all around among the prior art to carry out the clamping and produces the deformation more easily, preferably is the thin wall spare including loop configuration.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
(1) the clamping structure of the thin-wall part provided by the utility model has simple design, not only is the material selection and the processing convenient, but also can realize the up-and-down clamping of the thin-wall part, and effectively avoids the phenomenon of uneven stress of the thin-wall part;
(2) the utility model provides a clamping structure of thin-walled spare can make the thin-walled spare machining in-process not produce vibration and deformation, has ensured the machining precision of thin-walled spare, can apply in the semiconductor preparation field better;
(3) the utility model provides a clamping structure of thin wall spare can ensure the flatness and the circularity on thin wall spare surface after thin wall spare clamping processing, and its flatness is less than or equal to 0.1mm, and the circularity is less than or equal to 0.05mm, and the clamping is convenient moreover, the simple operation.
Drawings
Fig. 1 is a clamping sectional view of a clamping structure and a thin-walled workpiece provided in embodiment 1 of the present invention.
Fig. 2 is a top view of the clamping structure provided in embodiment 1 of the present invention.
Fig. 3 is a cross-sectional view of a thin-walled workpiece after being processed in the clamping method provided in application example 1 of the present invention.
In the figure: 1-base station; 101-a base; 102-a boss; 103-a groove; 2-cover plate; 3-a screw; 4-a thin-walled part; 401-a cylindrical structure; 402-loop lugs; 403-trenches.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The present invention will be described in further detail below. However, the following examples are only simple examples of the present invention, and do not represent or limit the scope of the present invention, which is defined by the appended claims.
First, examples and comparative examples
Example 1
The embodiment provides a clamping structure for a thin-wall part, as shown in fig. 1 and fig. 2, the clamping structure includes a base 1 and a circular cover plate 2;
the base platform 1 comprises a base 101 and a boss 102 protruding upwards from the center of the base, the diameter of the boss 102 is 249.95mm, the height of the boss 102 is 49.6mm, the diameter of the base 101 is 260mm, the edge of the base is provided with a groove 103 with the width of 8.05mm and the depth of 0.4mm, the upper surface of the boss 102 is provided with 8 boss holes (not shown in the figure) distributed at equal angles, the radial distance from the circle center of each boss hole to the circumference of the boss 102 is 16.15mm, the thickness of the base 101 is 20mm, and the base platform 1 is made of stainless steel;
the cover plate 2 is arranged on the boss 102, the thickness of the cover plate 2 is 5mm, the diameter of the cover plate 2 is 249.8mm, 8 cover plate holes which penetrate through the cover plate 2 and are distributed at equal angles are arranged on the cover plate 2, the radial distance from the circle center of each cover plate hole to the circumference of the cover plate 2 is 16mm, and the cover plate 2 is made of stainless steel;
the clamping structure further comprises a screw rod 3 penetrating through the cover plate hole and arranged in the boss hole of the boss 102, and the size of the screw rod 3 is M10.
As shown in fig. 1, the thin-walled member in this embodiment is an aluminum alloy thin-walled member 4, and includes a cylindrical structure 401 and a 10mm wide annular lug 402 disposed on the inner surface of the cylindrical structure 401 and perpendicular to the cylindrical structure 401, where the diameter of the cylindrical structure 401 is 250mm, the height of the cylindrical structure is 90mm, the annular lug 402 is disposed at a height of 50mm, the inner diameter of the annular lug 402 is 240mm, the outer diameter of the annular lug 402 is 250mm, the thickness of the annular lug 402 is 4mm, and the thickness of the cylindrical structure 401 is 8 mm.
Example 2
The embodiment provides a clamping structure for a thin-wall part, which comprises a base platform and a circular cover plate;
the base station comprises a base and a boss protruding upwards from the center of the base, the diameter of the boss is 49.9mm, the height of the boss is 39.7mm, the diameter of the base is 55mm, the edge of the base is provided with a groove which is 3.1mm wide and 0.3mm deep, the upper surface of the boss is provided with 3 boss holes distributed at equal angles, the radial distance from the center of the boss hole to the circumference of the boss is 14.9mm, the thickness of the base is 10mm, and the base station is made of aluminum alloy 6061;
the cover plate is arranged on the boss, the thickness of the cover plate is 15mm, the diameter of the cover plate is 49mm, 3 cover plate holes which penetrate through the cover plate and are distributed at equal angles are arranged on the cover plate, the radial distance from the circle center of each cover plate hole to the circumference of the cover plate is 14mm, and the cover plate is made of aluminum alloy 6061;
the clamping structure further comprises a screw rod penetrating through the cover plate hole and arranged in the boss hole of the boss, and the size of the screw rod is M6.
The thin-walled part in this embodiment is stainless steel thin-walled part, including the cylinder structure and set up in the 5mm wide annular journal stirrup of cylinder structure vertically in the cylinder structure internal surface, the diameter of cylinder structure is 50mm, and height 80mm, annular journal stirrup establish set up in the 40mm eminence, and the internal diameter of annular journal stirrup is 45mm, and the external diameter is 50mm, and the thickness of annular journal stirrup is 3mm, and the thickness of cylinder structure is 3 mm.
Example 3
The embodiment provides a clamping structure for a thin-wall part, and the clamping structure is the same as that in embodiment 1 except that a circular cover plate is replaced by a circular cover plate.
The clamping structure specifically comprises: a base station and a circular cover plate;
the base station comprises a base and a boss protruding upwards from the center of the base, the diameter of the boss is 249.95mm, the height of the boss is 49.6mm, the diameter of the base is 260mm, the edge of the base is provided with a groove which is 8.05mm wide and 0.4mm deep, the upper surface of the boss is provided with 8 boss holes (not shown in the figure) distributed at equal angles, the radial distance from the circle center of each boss hole to the circumference of the boss is 16.15mm, the thickness of the base is 20mm, and the base station is made of stainless steel;
the cover plate is arranged on the boss, the thickness of the cover plate is 5mm, the outer diameter of the cover plate is 249.8mm, the inner diameter of the cover plate is 200mm, cover plate holes which penetrate through the cover plate and are distributed at equal angles are arranged on the cover plate, the radial distance from the circle center of each cover plate hole to the circumference of the cover plate is 16mm, and the cover plate is made of stainless steel;
the clamping structure further comprises a screw rod penetrating through the cover plate hole and arranged in the boss hole of the boss, and the size of the screw rod is M10.
The thin-walled member in this embodiment is the same as that of embodiment 1.
Comparative example 1
The present comparative example provides a clamping structure for a thin-walled part, the clamping structure is the same as embodiment 1 except that the cover plate is replaced with 8 equally distributed press blocks and the relevant connecting parts thereof for corresponding adjustment, and specifically includes: a base station and 8 pressing blocks;
the base station comprises a base and a boss protruding upwards from the center of the base, the diameter of the boss is 249.95mm, the height of the boss is 49.6mm, the diameter of the base is 260mm, the edge of the base is provided with a groove which is 8.05mm wide and 0.4mm deep, the upper surface of the boss is provided with 8 boss holes (not shown in the figure) distributed at equal angles, the radial distance from the circle center of each boss hole to the circumference of the boss is 16.15mm, the thickness of the base is 20mm, and the base station is made of stainless steel;
the pressing blocks are uniformly arranged on the bosses, the thickness of each pressing block is 5mm, the diameter of each pressing block is 32mm, pressing block holes penetrating through the pressing blocks are formed in the circle centers of the pressing blocks, and the pressing blocks are made of stainless steel;
the clamping structure further comprises a screw rod penetrating through the pressing block hole and arranged in the boss hole of the boss, and the size of the screw rod is M10.
The thin-walled member in this comparative example was the same as that of example 1.
Second, application example and application comparative example
Application example 1
The application example provides a clamping method for a thin-walled workpiece by using the clamping structure provided in embodiment 1, and the method includes: the method comprises the steps of placing an annular support lug of a thin-wall part on a boss of a base station, arranging a cylindrical structure of the thin-wall part in a groove of a base station base, leaving a 0.05mm gap between a cylindrical edge of the boss and the inner surface of the cylindrical structure of the thin-wall part, covering a cover plate on the annular support lug and the boss of the base station, and fixing the cover plate and the base station by using a screw rod.
As shown in fig. 3, the thin-wall part is clamped by the thin-wall part clamping method provided in this application example and then used in a milling machine, so that not only the upper part of the cylindrical structure 401 of the thin-wall part 4 can be machined, but also the bottom of the cylindrical structure 401 can be provided with a groove 403.
Application example 2
The application example provides a clamping method for a thin-walled workpiece by using the clamping structure provided in embodiment 2, and the method includes: the method comprises the steps of placing an annular support lug of a thin-wall part on a boss of a base station, arranging a cylindrical structure of the thin-wall part in a groove of a base station base, leaving a 0.1mm gap between a cylindrical edge of the boss and the inner surface of the cylindrical structure of the thin-wall part, covering a cover plate on the annular support lug and the boss of the base station, and fixing the cover plate and the base station by using a screw rod.
Application example 3
This application example provides a method for clamping a thin-walled workpiece using the clamping structure provided in embodiment 3, where the method includes: the method comprises the steps of placing an annular support lug of a thin-wall part on a boss of a base station, arranging a cylindrical structure of the thin-wall part in a groove of a base station base, leaving a 0.05mm gap between a cylindrical edge of the boss and the inner surface of the cylindrical structure of the thin-wall part, covering an annular cover plate on the annular support lug and the boss of the base station, and fixing the cover plate and the base station by using a screw rod.
Application comparative example 1
The application comparative example provides a clamping method of a thin-walled workpiece by using the clamping structure provided by comparison 1, and the method comprises the following steps: the method comprises the steps of placing an annular support lug of a thin-wall part on a boss of a base station, arranging a cylindrical structure of the thin-wall part in a groove of a base station base, reserving a 0.05mm gap between a cylindrical edge of the boss and the inner surface of the cylindrical structure of the thin-wall part, arranging a pressing block at a boss hole of the boss of the base station, and fixing the pressing block and the base station by a screw rod.
Third, test and results
And (3) machining the thin-wall part clamped in the application examples 1-3 and the application comparative example 1, and detecting the roundness and the flatness of the machined thin-wall part by using a three-coordinate measuring instrument.
The roundness refers to the degree that the cross section of the workpiece is close to a theoretical circle, and when the difference between the maximum radius and the minimum radius is 0, the roundness is 0; during measurement, coordinate values of a plurality of points on the circle are measured by using a three-coordinate measuring instrument according to a preselected rectangular coordinate system, and the roundness of the circle to be measured is calculated by using a roundness error evaluation method in a computer.
The flatness refers to the degree of the workpiece surface approaching to a plane, and when the workpiece surface is a plane, the flatness is 0; during measurement, a plane formed by three points on the surface of a workpiece is taken as an evaluation reference plane by a three-coordinate measuring instrument, and the distance between two contained planes which are parallel to the reference plane and have the minimum distance is taken as the planeness.
The specific test results of application examples 1 to 3 and application comparative example 1 are shown in table 1.
TABLE 1
| Sample (I) | Roundness mm of processed thin-wall part | Flatness mm of the processed surface |
| Application example 1 | 0.033 | 0.032 |
| Application example 2 | 0.025 | 0.030 |
| Application example 3 | 0.061 | 0.045 |
| Application comparative example 1 | 0.120 | 0.087 |
From table 1, the following points can be seen:
(1) according to comprehensive application examples 1-3, the utility model provides a clamping structure of thin wall spare is used in machining process, can make the thin wall spare not vibrate in the course of working, can ensure circularity and plane degree after the thin wall spare processing, wherein, the circularity of thin wall spare after the processing is less than or equal to 0.061mm, and the plane degree is less than or equal to 0.045mm, makes the thin wall spare can regard as semiconductor spare part to use better;
(1) it can be known from comprehensive application example 1 and application example 3 that application example 1 clamps and processes the thin-walled workpiece by using the clamping structure of the circular cover plate provided in embodiment 1, and compared with application example 3 which clamps and processes the thin-walled workpiece by using the clamping structure of the circular cover plate, the roundness of the thin-walled workpiece processed in application example 1 is 0.033mm, the flatness of the surface is 0.032mm, and the roundness of the thin-walled workpiece processed in application example 3 is 0.061mm, and the flatness of the surface is 0.045mm, so that the utility model discloses a circular cover plate is used as a cover plate to cover on the annular structure and the boss of the thin-walled workpiece, so that the surface of the thin-walled workpiece is stressed more uniformly, and is more stable in the machining process, and the flatness and the roundness of the thin-walled workpiece after processing are higher;
(3) it can be known from comprehensive application example 1 and application comparative example 1 that application example 1 carries out clamping processing to the thin-walled part through the clamping structure who adopts circular apron that adopts embodiment 1 to provide, and more application comparative example 1 adopts the clamping structure of briquetting to carry out clamping processing to the thin-walled part, the circularity of the thin-walled part after application example 1 processing is 0.033mm, and the plane degree on surface is 0.032mm, and the circularity of the thin-walled part after application comparative example 1 processing is up to 0.120mm, and the plane degree on surface is up to 0.087mm, is difficult to satisfy the circularity and the plane degree requirement of semiconductor spare part, explains from this, the utility model discloses an adopt circular apron to carry out centre gripping from top to bottom in the boss to the thin-walled part, can make the thin-walled part not produce vibration in the course of working to circularity and plane degree after can guaranteeing to process.
To sum up, the clamping structure provided by the utility model realizes clamping of thin-wall parts by adopting a vertical clamping mode, and can ensure that the thin-wall parts do not vibrate in the clamping process, so that the roundness of the processed thin-wall parts is less than or equal to 0.1mm, and the planeness is less than or equal to 0.045mm, and the clamping structure is simple and easy to process; the method for clamping the thin-walled workpiece by using the clamping structure can realize quick clamping, can effectively prevent the thin-walled workpiece from being distorted and deformed in the machining process, and can better meet the requirements of machining semiconductor parts.
The applicant states that the present invention is described by the above embodiments, but the present invention is not limited to the above detailed structural features, i.e. the present invention can be implemented only by relying on the above detailed structural features. It should be clear to those skilled in the art that any modifications to the present invention, to the equivalent replacement of selected parts and the addition of auxiliary parts, the selection of specific modes, etc., all fall within the scope of protection and disclosure of the present invention.
Claims (10)
1. The clamping structure of the thin-wall part is characterized by comprising a base station and a cover plate;
the base station comprises a base and a boss protruding upwards from the center of the base;
the cover plate is arranged on the boss;
the clamping structure further comprises a fixing device penetrating through the cover plate and extending into the boss.
2. The clamping structure of a thin-walled workpiece according to claim 1, wherein the diameter of the boss is 0.05-0.1 mm smaller than the outer diameter of the thin-walled workpiece;
the thickness of base is 10 ~ 20 mm.
3. The thin-walled workpiece clamping structure according to claim 1 or 2, wherein a groove is formed in a base of the base;
the depth of the groove is 0.2-0.4 mm.
4. The clamping structure of a thin-walled workpiece according to claim 1 or 2, wherein the cover plate is 5-15 mm thick;
the diameter of the cover plate is larger than the inner diameter of the thin-walled part;
the diameter of the cover plate is smaller than the outer diameter of the thin-wall part.
5. A clamping structure of a thin-walled workpiece according to claim 4, wherein the diameter of the cover plate is 0.2-1 mm smaller than the outer diameter of the thin-walled workpiece.
6. The clamping structure of a thin-walled workpiece according to claim 1, wherein the cover plate is provided with a cover plate hole penetrating through the cover plate;
the cover plate holes are distributed on the surface of the cover plate at equal angles.
7. The clamping structure of a thin-walled workpiece according to claim 6, wherein the radial distance from the circle center of the cover plate hole to the circumference of the cover plate is 14-24 mm.
8. The clamping structure of a thin-walled workpiece according to claim 6 or 7, wherein boss holes matched with the cover plate holes are formed in the upper surface of the boss of the base table;
the boss holes are distributed on the upper surface of the boss at equal angles.
9. A clamping structure for a thin-walled workpiece according to claim 8, wherein the radial distance from the center of the boss hole to the circumference of the boss is 14-25 mm.
10. A thin-walled workpiece clamping structure according to claim 8, wherein the fixing means comprises a screw;
the diameter of the screw is M6-M10;
the screw rod penetrates through the cover plate hole of the cover plate and is arranged in the boss hole of the boss to fix the base station and the cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922187507.3U CN211102841U (en) | 2019-12-09 | 2019-12-09 | Clamping structure of thin-walled piece |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922187507.3U CN211102841U (en) | 2019-12-09 | 2019-12-09 | Clamping structure of thin-walled piece |
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| CN211102841U true CN211102841U (en) | 2020-07-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774030A (en) * | 2019-12-09 | 2020-02-11 | 宁波江丰电子材料股份有限公司 | Thin-wall part clamping structure, thin-wall part clamping method and application |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110774030A (en) * | 2019-12-09 | 2020-02-11 | 宁波江丰电子材料股份有限公司 | Thin-wall part clamping structure, thin-wall part clamping method and application |
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