CN214814928U - Special clamp for machining square parts - Google Patents

Special clamp for machining square parts Download PDF

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Publication number
CN214814928U
CN214814928U CN202120377838.8U CN202120377838U CN214814928U CN 214814928 U CN214814928 U CN 214814928U CN 202120377838 U CN202120377838 U CN 202120377838U CN 214814928 U CN214814928 U CN 214814928U
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CN
China
Prior art keywords
circular sleeve
bottom plate
screw rod
machining
nut
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN202120377838.8U
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Chinese (zh)
Inventor
董瑞
李佳源
孙何华
孙宝玉
宋志源
黄华栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Vocational Institute of Industrial Technology
Original Assignee
Suzhou Vocational Institute of Industrial Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Vocational Institute of Industrial Technology filed Critical Suzhou Vocational Institute of Industrial Technology
Priority to CN202120377838.8U priority Critical patent/CN214814928U/en
Application granted granted Critical
Publication of CN214814928U publication Critical patent/CN214814928U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a special fixture for square part processing, including circular sleeve and the bottom plate of setting inside circular sleeve, the toper cavity has been seted up to circular sleeve's one end, the bottom plate sets up in the toper cavity, be provided with the screw rod between bottom plate and the circular sleeve, the one end of screw rod and the middle part fixed connection of bottom plate, the other end of screw rod passes circular sleeve and nut spiro union, be provided with the gasket between nut and the circular sleeve, four corners of bottom plate all install articulated seat, four all be provided with the jack catch on the articulated seat, the one end of jack catch is articulated through articulated screw and articulated seat, is connected with supporting spring between two adjacent jack catches, supporting spring is located the other end of jack catch; the utility model is simple in operation, machining efficiency is high, and product processingquality is stable, and the yield improves greatly.

Description

Special clamp for machining square parts
Technical Field
The utility model relates to a square part anchor clamps technical field, concretely relates to special fixture for square parts machining.
Background
At present, workpieces with square cross sections are machined on a lathe in China, a clamping scheme of a four-jaw chuck (jaws are matched with the workpieces after being improved) is adopted in the past, and the method has the following limitations: the four-jaw chuck is used for clamping a square workpiece, the jaws are required to be operated respectively to realize the positioning and clamping of the workpiece, the workpiece clamping efficiency is low, an automatic centering function is not provided, the factors of the workpiece machining precision are influenced due to the difference of technical levels caused by different operators, and the production efficiency and the product quality are seriously influenced. Therefore, the original clamping scheme has low production efficiency, poor processing stability of parts and high rejection rate. In view of the above drawbacks, it is necessary to design a special fixture for machining a square part.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a special fixture for square parts machining to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a special fixture for square parts machining, includes circular sleeve and sets up the bottom plate at circular sleeve inside, the toper cavity has been seted up to circular sleeve's one end, the bottom plate sets up in the toper cavity, be provided with the screw rod between bottom plate and the circular sleeve, the one end of screw rod and the middle part fixed connection of bottom plate, the other end of screw rod pass circular sleeve and nut spiro union, be provided with the gasket between nut and the circular sleeve, articulated seat, four are all installed to four corners of bottom plate all be provided with the jack catch on the articulated seat, the one end of jack catch is articulated through articulated screw and articulated seat, is connected with supporting spring between two adjacent jack catches, supporting spring is located the other end of jack catch.
Preferably, the other end of the circular sleeve is provided with a through hole for the screw to pass through, and the through hole is communicated with the conical cavity.
Preferably, the middle part of gasket is provided with the heavy platform with nut matched with, be provided with the standing groove on the gasket.
Preferably, the screw rod is sleeved with an ejection spring, one end of the ejection spring is abutted with the bottom plate, and the other end of the ejection spring is abutted with the circular sleeve.
Preferably, the front end face of the clamping jaw is provided with a protruding portion extending forwards, the protruding portion is provided with an arc-shaped face matched with the conical cavity, and the upper portion of the rear end face of the clamping jaw is provided with a limiting protruding block extending backwards.
Compared with the prior art, the special fixture for processing the square parts has the advantages that the nut is rotated through the wrench, the screw rod is axially pulled to drive the bottom plate to axially move under the action of the gasket, the four clamping jaws are further driven to axially move, and under the action of the four clamping jaws and the taper of the inner wall of the conical cavity of the circular sleeve, the four clamping jaws tightly hold four sides of the workpiece, so that the workpiece is clamped; the utility model discloses a spanner is rotatory about the nut round in the opposite direction, loosens the nut and is convenient for take off the gasket, and after the gasket was taken off, ejecting spring pushed downward through its own elasticity, and the bottom plate is ejecting with the work piece, and simultaneously under the effect of four supporting springs, four jack catchs are in the open-ended state, are convenient for take off the work piece to realize the dismantlement of work piece; the utility model is simple in operation, machining efficiency is high, and product processingquality is stable, and the yield improves greatly.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
FIG. 1 is a perspective view of a special fixture for machining square parts according to the present invention;
FIG. 2 is a bottom view of the special fixture for machining cubic parts of the present invention;
FIG. 3 is a schematic structural view of the special fixture for machining square parts according to the present invention for removing the circular sleeve;
fig. 4 is a schematic diagram of a gasket structure used in a special fixture for machining square parts according to the present invention.
In the drawings:
1. a circular sleeve; 2. a base plate; 3. a tapered cavity; 4. a screw; 5. a nut; 6. a gasket; 61. sinking a platform; 62. a placement groove; 7. ejecting a spring; 8. a hinged seat; 9. a claw; 91. an arc-shaped surface; 92. a limiting bump; 10. a hinge screw; 11. a support spring; 12. and (5) a workpiece.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a special fixture for square parts machining, includes circular sleeve 1 and sets up at the inside bottom plate 2 of circular sleeve 1, toper cavity 3 has been seted up to circular sleeve 1's one end, bottom plate 2 sets up in toper cavity 3, be provided with screw rod 4 between bottom plate 2 and the circular sleeve 1, the one end of screw rod 4 and the middle part fixed connection of bottom plate 2, the other end of screw rod 4 passes circular sleeve 1 and 5 spiro unions of nut, be provided with gasket 6 between nut 5 and the circular sleeve 1.
In this embodiment, a through hole for a screw rod 4 to pass through is formed at the other end of the circular sleeve 1, and the through hole is communicated with the conical cavity 3.
In this embodiment, a sinking platform 61 matched with the nut 5 is arranged in the middle of the gasket 6, and a placing groove 62 is arranged on the gasket 6.
In this embodiment, the screw rod 4 is sleeved with an ejection spring 7, one end of the ejection spring 7 is abutted with the bottom plate 2, and the other end of the ejection spring 7 is abutted with the circular sleeve 1.
Articulated seat 8, four in this embodiment all install at four corners of bottom plate 2 all be provided with jack catch 9 on the articulated seat 8, the one end of jack catch 9 is articulated with articulated seat 8 through articulated screw 10, is connected with supporting spring 11 between two adjacent jack catches 9, supporting spring 11 is located the other end of jack catch 9.
The front end face of the jaw 9 in this embodiment is provided with a protrusion extending forward, the protrusion is provided with an arc face 91 matched with the tapered cavity 3, and the upper portion of the rear end face of the jaw 9 is provided with a limit bump 92 extending backward.
The utility model discloses the theory of operation: under the effect of four supporting spring 11, four jack catchs 9 are in the open-ended state, put into four jack catchs 9 under the open-ended state with work piece 12 in, through spanner swivel nut 5, under the effect of gasket 6, axial pulling screw rod 4 drives 2 axial displacement of bottom plate, further drives four jack catchs 9 axial displacement, under the conical effect of the 3 inner walls of the toper cavity of four jack catchs 9 and circular sleeve 1 for four jack catchs 9 hold tightly four sides of work piece 12, thereby realize the clamp of work piece tightly.
When the workpiece needs to be disassembled: the nut 5 is rotated for about one circle in the opposite direction through the wrench, the gasket 6 is convenient to take down by loosening the nut 5, after the gasket 6 is taken down, the ejection spring 7 pushes the bottom plate 2 to move downwards through the elasticity of the ejection spring, the bottom plate 2 ejects the workpiece 12, and meanwhile, under the action of the four supporting springs 11, the four clamping jaws 9 are in an open state, so that the workpiece 12 is convenient to take out, and the workpiece is disassembled.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a special fixture for square parts machining which characterized in that: comprises a circular sleeve (1) and a bottom plate (2) arranged inside the circular sleeve (1), wherein a conical cavity (3) is formed in one end of the circular sleeve (1), the bottom plate (2) is arranged in the conical cavity (3), a screw rod (4) is arranged between the bottom plate (2) and the circular sleeve (1), one end of the screw rod (4) is fixedly connected with the middle part of the bottom plate (2), the other end of the screw rod (4) penetrates through the circular sleeve (1) to be in threaded connection with a nut (5), a gasket (6) is arranged between the nut (5) and the circular sleeve (1), hinged seats (8) are arranged on four corners of the bottom plate (2), clamping jaws (9) are arranged on the hinged seats (8), one end of each clamping jaw (9) is hinged to the hinged seat (8) through a hinged screw (10), and a support spring (11) is connected between two adjacent clamping jaws (9), the supporting spring (11) is positioned at the other end of the clamping jaw (9).
2. The special fixture for machining the square parts as claimed in claim 1, wherein: the other end of the circular sleeve (1) is provided with a through hole for the screw rod (4) to pass through, and the through hole is communicated with the conical cavity (3).
3. The special fixture for machining the square parts as claimed in claim 1, wherein: the middle part of gasket (6) is provided with heavy platform (61) with nut (5) matched with, be provided with standing groove (62) on gasket (6).
4. The special fixture for machining the square parts as claimed in claim 1, wherein: the screw rod (4) is sleeved with an ejection spring (7), one end of the ejection spring (7) is abutted to the bottom plate (2), and the other end of the ejection spring is abutted to the circular sleeve (1).
5. The special fixture for machining the square parts as claimed in claim 1, wherein: the front end face of the clamping jaw (9) is provided with a protruding portion extending forwards, an arc face (91) matched with the conical cavity (3) is arranged on the protruding portion, and a limiting convex block (92) extending backwards is arranged on the upper portion of the rear end face of the clamping jaw (9).
CN202120377838.8U 2021-02-18 2021-02-18 Special clamp for machining square parts Expired - Fee Related CN214814928U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120377838.8U CN214814928U (en) 2021-02-18 2021-02-18 Special clamp for machining square parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120377838.8U CN214814928U (en) 2021-02-18 2021-02-18 Special clamp for machining square parts

Publications (1)

Publication Number Publication Date
CN214814928U true CN214814928U (en) 2021-11-23

Family

ID=78952318

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120377838.8U Expired - Fee Related CN214814928U (en) 2021-02-18 2021-02-18 Special clamp for machining square parts

Country Status (1)

Country Link
CN (1) CN214814928U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115387002A (en) * 2022-08-24 2022-11-25 红豆集团无锡红豆童装有限公司 Antistatic blended fabric and processing technology thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115387002A (en) * 2022-08-24 2022-11-25 红豆集团无锡红豆童装有限公司 Antistatic blended fabric and processing technology thereof

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20211123

Termination date: 20220218

CF01 Termination of patent right due to non-payment of annual fee