Supporting clamp

By designing a support fixture including a support barrel, a support cylinder, a top wire and a positioning block, the problem of poor performance in supporting curved or irregular plane parts is solved, and effective support and rapid replacement of parts with large tolerances is achieved.

CN119820508APending Publication Date: 2025-04-15BEIJING LIWEIER AVIATION PRECISION MASCH CO LTD
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Patent Information

Application Number
CN202510210555.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2025-04-15

AI Technical Summary

Technical Problem

Existing tooling has limited effect when supporting curved or irregular flat parts, and is difficult to adapt to parts with large tolerances, making it inconvenient to replace fixtures.

Method used

A support fixture including a support barrel, a support cylinder, a top wire and a positioning block is designed. Through the cooperation of the smaller support points supporting the cylinder and the spring, effective support for curved surfaces or irregular planes is achieved, and parts of different shapes are adapted through a quick disassembly design.

Benefits of technology

It realizes effective support for curved or irregular flat parts, allows for greater part tolerances, and allows quick fixture replacement, suitable for parts of various shapes.

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Abstract

A supporting clamp comprises a supporting barrel, the supporting barrel comprises a cylindrical upper end, a flat-plate-shaped lower end and a through hole, an opening is formed in the cylindrical upper end, and a first through locking hole is formed in the side wall of the cylindrical upper end; the supporting cylinder comprises a columnar main body and is supported on a part through an opening in the upper end of the columnar main body, and the rest part of the supporting cylinder is limited in the supporting barrel; the jackscrew penetrates through the first locking hole to fix the position, relative to the supporting barrel, of the supporting cylinder; and the positioning block comprises a cubic main body, a groove and a spring are arranged at the position, corresponding to the through hole, of the positioning block, and the positioning block is fixed to the flat-plate-shaped lower end of the supporting barrel and detachably fixed to the tool. The invention further provides a supporting method of the supporting clamp. The supporting clamp is good in effect when used for supporting a curved surface or an irregular plane, allows larger part tolerance and can be rapidly replaced.
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Description

Technical Field

[0001] The invention relates to the technical field of process equipment support, in particular to a supporting fixture. Background Art

[0002] In the manufacturing process of engineering, process equipment, referred to as tooling, is usually used to clamp, fix, install and debug parts or products. However, since parts or products have planes with different precision and shapes, the technologies commonly used in existing tooling support often have the following defects:

[0003] On the one hand, if the part or product has a curved surface or an irregular plane, the support effect of the existing technology is limited. If a flat type support fixture is used, the curved part will often rotate or move, resulting in support failure.

[0004] On the other hand, for batch parts with larger tolerances, such as casting surfaces, it may be necessary to use multiple support fixtures to meet the needs, which is inconvenient to replace.

[0005] Therefore, for parts with large tolerances, curved surfaces or irregular surfaces, how to provide a supporting fixture that can effectively support curved surfaces or irregular surfaces, allow larger part tolerances, and can be quickly replaced is the main technical problem that needs to be solved at present. Summary of the invention

[0006] In view of this, the present application provides a support fixture that can provide a support fixture that has good support effects on curved surfaces or irregular planes, allows for larger part tolerances, and can be quickly replaced.

[0007] The first aspect of the present application provides a supporting fixture, comprising:

[0008] A support barrel, the support barrel comprising a cylindrical upper end and a flat plate-shaped lower end, a through hole penetrating the cylindrical upper end and the flat plate-shaped lower end, and forming an opening at the cylindrical upper end, and a first locking hole penetrating the side wall of the cylindrical upper end;

[0009] A support cylinder, the support cylinder comprising a columnar body, which can be passed through the through hole by the flat lower end of the support barrel, and a part of the support cylinder body is supported on the part through the opening of the columnar upper end, and the rest is confined in the support barrel;

[0010] A jackscrew, the jackscrew passing through the first locking hole to fix the position of the supporting cylinder relative to the supporting barrel;

[0011] The positioning block comprises a cubic body, a groove is arranged at a position corresponding to the through hole, a spring is arranged in the groove to abut against the bottom of the supporting cylinder, and the positioning block is detachably fixed to the flat lower end of the supporting barrel and detachably fixed to the tooling.

[0012] From the above, the parts are supported by the support cylinder with a smaller support point to avoid displacement of the supported parts, thereby achieving a better support effect; by using the support barrel and the spring, the support cylinder can allow a larger tolerance when supporting the parts, that is, without changing the relative position between the fixture and the tooling, the position of the support cylinder can be changed with the difference of the parts or the change of the surface, thereby achieving support for larger part errors; through simple and quick disassembly, the support fixture can be replaced to suit parts of more shapes and types.

[0013] As a possible implementation method of the first aspect of the present application, the diameter of the cylindrical upper opening of the support barrel is smaller than the through hole of the support barrel; the support cylinder has a laterally protruding annular protrusion in the middle position, and the diameter of the annular protrusion is not larger than the diameter of the through hole of the support barrel and is not smaller than the diameter of the cylindrical upper opening of the support barrel.

[0014] From the above, a smaller cylindrical upper opening is used so that the supporting cylinder cannot be separated from the supporting barrel and is confined in the barrel. A method of freely changing the supporting height by using a spring is also provided.

[0015] As a possible implementation method of the first aspect of the present application, the flat lower end of the support barrel has at least one first fixing hole penetrating therethrough, and the positioning block is provided with a second fixing hole at a position corresponding to the first fixing hole, and the support barrel and the positioning block are fixed to each other by screws screwed into the first and second fixing holes.

[0016] From the above, the support barrel and the positioning block are fixed more stably by using screws, so that relative displacement cannot occur.

[0017] As a possible implementation of the first aspect of the present application, the side surface of the support cylinder has a band-shaped groove, and at least a portion of the band-shaped groove extends in a direction having a certain inclination angle with the axial direction and the circumferential direction of the support cylinder;

[0018] The groove width of the strip-shaped groove matches the diameter of the top screw.

[0019] From the above, the axial direction and the axial band groove with a certain inclination angle are used to assist the support. When the top screw is inserted into the band groove through the first locking hole, the top screw can be subjected to the spring force in the axial direction, so that it can move in the groove in a damping manner.

[0020] As a possible implementation of the first aspect of the present application, horizontal grooves extending along the circumference of the support cylinder are provided at positions of different heights of the band-shaped groove;

[0021] The groove width of the horizontal groove matches the diameter of the top screw.

[0022] From above, the position of the top screw is locked in the horizontal groove, thereby locking the extended length of the supporting column.

[0023] As a possible implementation of the first aspect of the present application, the band-shaped groove includes a first part and a second part;

[0024] The first portion forms a continuously extending groove;

[0025] The second portion forms a continuously extending groove and has the horizontal groove;

[0026] The connection point between the first part and the second part is located at the highest or lowest position of the band-shaped groove.

[0027] From the above, the extension length of the supporting cylinder is limited only at the highest or lowest position.

[0028] As a possible implementation of the first aspect of the present application, the top end of the support cylinder has a hemispherical groove, and a rollable spherical support body is embedded in the hemispherical groove;

[0029] The portion of the spherical support body located outside the hemispherical groove has a plane;

[0030] A circular ring-shaped cover is also mounted on the top of the spherical support body to limit the spherical support body in the hemispherical groove.

[0031] From the above, through the rollable spherical support body, a plane or a spherical surface can be selected as a support point to adapt to different surface conditions of parts.

[0032] A second aspect of the present application provides a supporting method for a supporting fixture, comprising:

[0033] Fixing the support fixture on the tooling and assembling the support fixture;

[0034] Loosen the top screw;

[0035] Make the top of the supporting cylinder support the parts;

[0036] Tighten the top screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 An exploded view of a support fixture provided in an embodiment of the present application;

[0038] Figure 2 A cross-sectional view of a support fixture provided in an embodiment of the present application;

[0039] Figure 3 An exploded view of a supporting fixture including a supporting cylinder and a groove provided in an embodiment of the present application;

[0040] Figure 4 A cross-sectional view of a supporting fixture including a supporting cylinder and a groove provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solution provided by the present application is further described below with reference to the accompanying drawings and examples. It should be understood that the system structure and business scenarios provided in the examples of the present application are mainly to illustrate the possible implementation methods of the technical solution of the present application and should not be interpreted as the only limitation on the technical solution of the present application. It is known to those of ordinary skill in the art that with the evolution of the system structure and the emergence of new business scenarios, the technical solution provided by the present application is also applicable to similar technical problems.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing the embodiments of the present invention and are not intended to limit the present invention.

[0043] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0044] like Figure 1 As shown, the embodiment of the present application is composed of a support barrel 2, a support cylinder 3 and a positioning block 8. Among them, the support barrel 2 includes a cylindrical end and a flat end, with the position of the cylindrical end being the top and the position of the flat end being the bottom. The support fixture and the use method provided by the embodiment of the present application will be introduced in order from top to bottom.

[0045] The support barrel 2 includes a cylindrical upper end and a flat lower end, and a through hole running through the cylindrical upper end and the flat lower end. The cylindrical upper end has a cylindrical body, and the cylindrical lower end has a square plane when viewed from above, and the two are formed integrally. The through hole is circular. The cylindrical upper end, the flat lower end and the through hole are coaxially arranged.

[0046] The through hole forms an opening at the upper end of the column, and the diameter of the opening is slightly smaller than that of the through hole.

[0047] A first locking hole is provided on the side wall of the upper end of the column. The first locking hole has a threaded inner surface, and the top screw 1 can be inserted and tightened.

[0048] The flat lower end of the support barrel 2 has a first fixing hole and a first mounting hole symmetrically arranged along the central axis, wherein the first fixing hole includes four holes arranged in the middle of the side length of the flat lower end, and the mounting hole includes four holes arranged in the corners of the flat lower end. The first fixing hole has a threaded inner surface, and a screw 4 can be inserted and tightened.

[0049] The support cylinder 3 comprises a cylindrical body, a laterally protruding annular protrusion in the middle thereof, a convex cylindrical head-shaped upper end, and a circular lower surface with a diameter larger than that of the cylindrical body.

[0050] The diameter of the main body of the support cylinder 3 is slightly smaller than the inner diameter of the through hole of the support barrel 2, and slightly larger than the opening of the cylindrical upper end of the support barrel 2; so that the support cylinder 3 can be inserted into the through hole through the flat lower end of the support barrel 2 and be restricted at the annular protrusion.

[0051] The positioning block 8 includes a cubic body and has an upper surface with the same plane shape as the flat lower end of the support barrel 2. A groove is provided at the center of the upper surface at a position corresponding to the through hole, and a spring 6 is provided at a position corresponding to the support barrel 2 in the groove, and the spring 6 can be inserted into the through hole of the support barrel 2.

[0052] The positioning block 8 has a second fixing hole and a second mounting hole that pass through the first fixing hole and the second mounting hole at a position corresponding to the first fixing hole and the second mounting hole of the support barrel 2. The second fixing hole has a threaded inner surface, and the screw 4 can be inserted through the first fixing hole from above and tightened in the second fixing hole.

[0053] The side wall of the positioning block 8 also has four second locking holes that can extend to the second mounting hole. The second locking holes have threaded inner surfaces, and the top screws 7 can be inserted and tightened.

[0054] A rivet 9 can be inserted into the second fixing hole.

[0055] During use, first fix the rivet 9 on the tooling, and insert it according to Figure 2 At this time, the support cylinder 3 is pressed into the through hole, so that the spring 6 is in a compressed state, and the top screw 1 is screwed into the first locking hole to lock the support cylinder 3 in the current state so that it cannot be displaced relative to the support barrel 2.

[0056] After the rivet 9 is inserted into the second mounting hole, the top screw 7 is screwed into the second locking hole to fix the rivet 9 so that it cannot be displaced relative to the positioning block 8.

[0057] After determining the position of the part, loosen the top screw 1 to extend the spring 6, pushing the support cylinder 3 to extend outward, so that the cylindrical head of the support cylinder 3 is supported on the part.

[0058] Tighten the top screw 1 so that the support cylinder 3 does not move relative to the support barrel 2, thereby supporting the parts.

[0059] After use, the support fixture can be removed as a whole by loosening the top screw 7. The support barrel 2, the support cylinder 3 and the spring 6 of different heights can be replaced to meet the needs of the support height of different parts.

[0060] Optional, such as Figure 3 As shown, the side surface of the support cylinder 3 has a strip-shaped groove 12, and at least a portion of the strip-shaped groove 12 extends in a direction having a certain inclination angle with the axial and circumferential directions of the support cylinder 3; the groove width of the strip-shaped groove 12 matches the diameter of the top screw 1.

[0061] Optionally, horizontal grooves extending along the circumference of the support circle 3 are provided at different heights of the strip-shaped groove 12; the groove width of the horizontal groove matches the diameter of the top screw.

[0062] Optionally, the strip-shaped groove 12 includes a first part and a second part; the first part forms a continuously extending groove; the second part forms a continuously extending groove and has the horizontal groove; the connection between the first part and the second part is located at the highest or lowest position of the strip-shaped groove.

[0063] When in use, the top screw 1 passes through the first locking hole and is inserted into the groove 12; the supporting cylinder 3 is rotated to make the top screw 1 slide in the groove 12. When the extended length of the supporting cylinder 3 is appropriate, the supporting cylinder 3 is rotated to make the top screw 1 enter the small groove, thereby locking the supporting cylinder 3.

[0064] Optional, such as Figure 3 As shown, the top of the support cylinder has a hemispherical groove, and a spherical support body 11 that can roll is embedded in the hemispherical groove; the part of the spherical support body 11 located outside the hemispherical groove has a plane; a circular cover is also installed on the top of the spherical support body 11 to limit the spherical support body in the hemispherical groove. Further, the outer surface of the top of the support cylinder 3 may have a thread; the spherical support body 11 is composed of a circular cover with an internal thread, and the spherical support body is limited in the hemispherical groove through the thread on the outer surface of the top of the support cylinder 3.

[0065] When in use, the spherical support body 11 is rotated so that its flat surface or spherical surface faces upward to meet different part support requirements.

[0066] Optionally, a plurality of supporting fixtures are used to support the part, and the elastic moduli of the springs 6 of the plurality of supporting fixtures are different.

[0067] When in use, the support fixture with a low elastic modulus spring 6 clamps the flat position of the part for preliminary positioning; the support fixture with a high elastic modulus spring is used on the irregular surface of the part to ensure that the part is stationary relative to the support fixture.

[0068] Optionally, the groove at the position corresponding to the through hole has a spring compression sensor; the sensor sends the compression of the spring to a calculation processing unit, and the calculation processing unit monitors the displacement of the part through the compression.

[0069] Among them, the words "first, second, third, etc." or module A, module B, module C and other similar terms in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0070] In the above description, the numbers representing the steps, such as S110, S120, etc., do not necessarily mean that the steps will be executed accordingly. If permitted, the order of the steps can be interchanged or they can be executed simultaneously.

[0071] The term "comprising" as used in the description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the features, integers, steps or components mentioned, but does not exclude the presence or addition of one or more other features, integers, steps or components and groups thereof. Therefore, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0072] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0073] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present application, all of which belong to the protection scope of the present application.

Claims

1. A supporting fixture, characterized in that: include: A support barrel, the support barrel comprising a cylindrical upper end and a flat plate-shaped lower end, a through hole penetrating the cylindrical upper end and the flat plate-shaped lower end, and forming an opening at the cylindrical upper end, and a first locking hole penetrating the side wall of the cylindrical upper end; A support cylinder, the support cylinder comprising a columnar body, which can be passed through the through hole by the flat lower end of the support barrel, and a part of the support cylinder body is supported on the part through the opening of the columnar upper end, and the rest is confined in the support barrel; A jackscrew, the jackscrew passing through the first locking hole to fix the position of the supporting cylinder relative to the supporting barrel; The positioning block comprises a cubic body, a groove is arranged at a position corresponding to the through hole, a spring is arranged in the groove to abut against the bottom of the supporting cylinder, and the positioning block is detachably fixed to the flat lower end of the supporting barrel and detachably fixed to the tooling.

2. The support fixture according to claim 1, characterized in that: The diameter of the cylindrical upper opening of the support barrel is smaller than the through hole of the support barrel; the support cylinder has a laterally protruding annular protrusion in the middle position, and the diameter of the annular protrusion is not larger than the diameter of the through hole of the support barrel and is not smaller than the diameter of the cylindrical upper opening of the support barrel.

3. The support fixture according to claim 1, characterized in that: The flat lower end of the support barrel has at least one first fixing hole passing therethrough, and the positioning block is provided with a second fixing hole at a position corresponding to the first fixing hole. The support barrel and the positioning block are fixed to each other by screws screwed into the first and second fixing holes.

4. The supporting fixture according to claim 1, characterized in that: The positioning block is provided with a mounting hole, and the side wall of the positioning block has a second locking hole that can extend to the mounting hole, and the mounting hole is inserted with a rivet or a screw fixed on the tooling.

5. The supporting fixture according to claim 4, characterized in that: The cylindrical upper end, flat lower end and through hole of the support barrel are coaxially arranged, and the cylindrical upper end, flat lower end and through hole are symmetrical with respect to the central axis; the flat lower end of the support barrel has at least four first fixing holes, and the positioning block has at least four mounting holes; the first fixing holes and the mounting holes are symmetrically arranged with respect to the central axis.

6. The supporting fixture according to claim 1, characterized in that: The side surface of the support cylinder has a band-shaped groove, and at least a portion of the band-shaped groove extends in a direction having a certain inclination angle with the axial direction and the circumferential direction of the support cylinder; The groove width of the strip-shaped groove matches the diameter of the top screw.

7. The supporting fixture according to claim 6, characterized in that: Horizontal grooves extending along the circumference of the supporting cylinder are provided at positions of different heights of the strip-shaped grooves; The groove width of the horizontal groove matches the diameter of the top screw.

8. The supporting fixture according to claim 7, characterized in that: The band-shaped groove includes a first portion and a second portion; The first portion forms a continuously extending groove; The second portion forms a continuously extending groove and has the horizontal groove; The connection point between the first part and the second part is located at the highest or lowest position of the band-shaped groove.

9. The supporting fixture according to claim 1, characterized in that: The top of the supporting cylinder has a hemispherical groove, and a rollable spherical supporting body is embedded in the hemispherical groove; The portion of the spherical support body located outside the hemispherical groove has a plane; A circular ring-shaped cover is also mounted on the top of the spherical support body to limit the spherical support body in the hemispherical groove.

10. A supporting method using the supporting fixture according to any one of claims 1 to 9, characterized in that: include: Fixing the support fixture on the tooling and assembling the support fixture; Loosen the top screw; Make the top of the supporting cylinder support the parts; Tighten the top screw.