CN217095733U - Multi-claw clamping device - Google Patents

Multi-claw clamping device Download PDF

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Publication number
CN217095733U
CN217095733U CN202123297298.1U CN202123297298U CN217095733U CN 217095733 U CN217095733 U CN 217095733U CN 202123297298 U CN202123297298 U CN 202123297298U CN 217095733 U CN217095733 U CN 217095733U
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China
Prior art keywords
jaw
base
chuck
tensioning block
shaped tensioning
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Active
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CN202123297298.1U
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Chinese (zh)
Inventor
臧元甲
范存辉
韩天意
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Zhengzhou Aircraft Equipment Co Ltd
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Zhengzhou Aircraft Equipment Co Ltd
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Priority to CN202123297298.1U priority Critical patent/CN217095733U/en
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Abstract

The utility model relates to a part location clamping field relates to a multi-jaw clamping device in machining. Comprises a connecting base (5), two-jaw components (6), mounting screws (7), a chuck base body (8) and a T-shaped tensioning block II (9); the utility model provides a device of part location clamping among machining is applied to the clamping of thin arm solid of revolution part, through the deflection that adopts the mode of multiple spot contact in order to reduce the part.

Description

Multi-claw clamping device
Technical Field
The utility model relates to a part location clamping field in the machining is applied to the clamping of thin arm solid of revolution part.
Background
The thin-wall part processing is a difficult point in the mechanical processing, and due to the property of easy deformation, the thin-wall part processing causes great troubles for positioning and clamping, cutting parameters, cutter selection and the like in the part processing. In the ejection device newly developed by the company, the piston-type part used in the ejection process is a typical representative of a thin-wall part, and as shown in the following figures, the maximum outer circle of the part is phi 60.8mm, the total length is 156mm, and the wall thickness is only 2.5 mm. After rough machining, the part firstly adopts two ends to support the finish machining excircle, and then the machined excircle is clamped and positioned in the form of the bush and the chuck, so as to carry out finish machining on the inner hole. Even if the clamping machining method is used, the part can deform to different degrees. In order to minimize part distortion, we have designed a multi-jaw clamp.
Disclosure of Invention
The utility model relates to a part location clamping field in the machining is applied to the clamping of thin arm solid of revolution part, adopts the mode of multiple spot contact in order to reduce the deflection of part.
The utility model provides a technical scheme that technical problem adopted
A multi-jaw gripping device, comprising: the device comprises a connecting base 5, two jaw assemblies 6, mounting screws 7, a chuck base body 8 and a T-shaped tensioning block II 9; the connecting base 5 penetrates into the 3 dovetail grooves of the chuck base body 8 respectively, and the connecting base 5 is connected with the two-jaw assembly 6 through a T-shaped tensioning block II 9; fixing the 3 two-jaw assemblies 6 with a chuck base body 8 through mounting screws 7; one end of the two-claw base 1 of each two-claw assembly 6 is of a symmetrical oxhorn structure and is respectively connected and fixed with the 2 chucks 2.
The two-jaw assembly 6 further comprises 2T-shaped tensioning blocks I3 and 4 fastening screws 4; two claw bases 1 are connected and fixed with the chuck 2 through a T-shaped tensioning block I3 and a fastening screw 4.
The matching surfaces of the two-claw base 1 and the connecting base 5 are provided with a sawtooth structure, a square groove is arranged in the middle position, and two countersunk holes are arranged in the square groove; and the two mounting screws 7 respectively penetrate through countersunk holes of the two claw bases 1 to be connected with threaded holes on the T-shaped tensioning block II 9.
One end of the chuck 2 is of a sawtooth structure and is matched with the two-jaw base 1 through the sawtooth structure, a through dovetail groove is formed in the middle of the chuck and is matched with the T-shaped tensioning block I3, and the other end of the chuck is of an arc structure and is matched with a thin-wall part; the radius of the arc structure is consistent with the radius of the excircle of the clamped part;
the T-shaped tensioning block I3 is of a long strip structure with a T-shaped section, and two threaded blind holes are formed in the small end of the T-shaped section; the fastening screw 4 is a threaded rod structure with an internal hexagonal nut.
The connecting base 5 and the two-claw base 1 are matched in a zigzag structure, and a dovetail groove is formed in the middle of the connecting base; the mounting screw 7 is a threaded rod structure with an internal hexagonal nut.
The chuck base body 8 is a chuck for a general numerically controlled lathe.
The T-shaped tensioning block II 9 is of a long-strip structure with a T-shaped section, and two threaded blind holes are formed in the small end of the T-shaped tensioning block.
The beneficial effects of the utility model
The utility model provides a device of part location clamping among machining is applied to the clamping of thin arm solid of revolution part, through the deflection that adopts the mode of multiple spot contact in order to reduce the part.
Drawings
Figure 1 is a three-dimensional view of a two jaw assembly 6 of the invention;
fig. 2 is a three-dimensional schematic diagram of the utility model.
Wherein: 1-two-jaw base, 2-chuck, 3-T type tensioning block I, 4-fastening screw, 5-connecting base, 6-two-jaw component, 7-mounting screw, 8-chuck base body and 9-T type tensioning block II
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the clamping jaws of the multi-jaw clamping device of the present invention can be multiple, and the more the clamping jaws are, the smaller the clamping deformation of the parts is, according to the theory and practical measurement, the following will take the six-jaw clamping device as an example for detailed description.
A multi-claw clamping device include: the device comprises a connecting base 5, two jaw assemblies 6, mounting screws 7, a chuck base body 8 and a T-shaped tensioning block II 9; the connecting base 5 penetrates into the 3 dovetail grooves of the chuck base body 8 respectively, and the connecting base 5 is connected with the two-jaw assembly 6 through a T-shaped tensioning block II 9; fixing the 3 two-jaw assemblies 6 with a chuck base body 8 through mounting screws 7; one end of the two-claw base 1 of each two-claw assembly 6 is of a symmetrical oxhorn structure and is respectively connected and fixed with 2 chucks 2; and the two mounting screws 7 respectively penetrate through countersunk holes of the two claw bases 1 to be connected with threaded holes on the T-shaped tensioning block II 9.
The two-jaw assembly 6 further comprises 2T-shaped tensioning blocks I3 and 4 fastening screws 4; the two-jaw base 1 is fixedly connected with the chuck 2 through a T-shaped tensioning block I3 and a fastening screw 4.
The matching surface of the two-claw base 1 and the connecting base 5 is provided with a saw-toothed structure, a square groove is arranged in the middle, and two countersunk holes are arranged in the square groove. One end of the connecting chuck 2 is of a sawtooth structure and is matched with the sawtooth structure of the two-jaw base 1, a through dovetail groove is arranged in the middle of the connecting chuck and is matched with the T-shaped tensioning block I3 and is fixed with the two-jaw base 1 through a fastening screw 4, and the other end of the connecting chuck is of an arc structure and is matched with a thin-wall part; the radius of the arc structure is consistent with the radius of the excircle of the clamped part;
the T-shaped tensioning block I3 is of a long strip structure with a T-shaped section, and two threaded blind holes are formed in the small end of the T-shaped section; the fastening screw 4 is a threaded rod structure with an internal hexagonal nut.
The connecting base 5 and the two-claw base 1 are matched in a zigzag structure, and a dovetail groove is formed in the middle of the connecting base; the mounting screw 7 is a threaded rod structure with an internal hexagonal nut. The chuck base body 8 is a chuck used by a general numerical control lathe; the T-shaped tensioning block II 9 is of a long strip structure with a T-shaped section, and two threaded blind holes are formed in the small end of the T-shaped tensioning block.

Claims (8)

1. A multi-jaw clamping device is characterized by comprising a connecting base (5), a two-jaw assembly (6), a mounting screw (7), a chuck base body (8) and a T-shaped tensioning block II (9); a connecting base (5) penetrates into 3 dovetail grooves of the chuck base body (8) respectively, and the connecting base (5) is connected with the two jaw assemblies (6) through a T-shaped tensioning block II (9); fixing 3 two-jaw components (6) with a chuck base body (8) through mounting screws (7); one end of the two-claw base (1) of each two-claw assembly (6) is of a symmetrical oxhorn structure and is respectively connected and fixed with the 2 clamping heads (2).
2. A multi-jaw gripping arrangement according to claim 1, c h a r a c T e r i z e d in that the two-jaw assembly (6) further comprises 2T-shaped tensioning blocks i (3), 4 tightening screws (4); the two-jaw base (1) is fixedly connected with the chuck (2) through a T-shaped tensioning block I (3) and a fastening screw (4).
3. A multi-jaw gripping device according to claim 1, characterized in that the mating surfaces of the two-jaw base (1) and the connection base (5) have a saw-toothed structure, a square groove is provided in the middle, and two counter bores are provided in the square groove; two mounting screws (7) respectively penetrate through countersunk holes of the two claw bases (1) and are connected with threaded holes in the T-shaped tensioning block II (9).
4. A multi-jaw clamping device as claimed in claim 1, characterized in that one end of the chuck (2) is of a saw-toothed structure and is matched with the two-jaw base (1) through the saw-toothed structure, a dovetail groove is formed in the middle of the chuck and is matched with the T-shaped tensioning block i (3), and the other end of the chuck is of an arc structure and is matched with a thin-wall part; the radius of the arc structure is consistent with the radius of the excircle of the clamped part.
5. A multi-jaw gripping device according to claim 2, characterized in that said T-shaped tensioning block i (3) is of a long strip configuration with a T-shaped section, with two blind threaded holes being present at the small end of the T; the fastening screw (4) is a threaded rod structure with an inner hexagonal nut.
6. A multi-jaw gripping device according to claim 1, characterized in that the coupling base (5) has a saw-tooth like structure cooperating with the two-jaw base (1), with a dovetail groove provided in the middle; the mounting screw (7) is of a threaded rod structure with an internal hexagonal nut.
7. A multi-jaw gripping apparatus according to claim 1, characterized in that the chuck base (8) is a universal numerically controlled lathe chuck.
8. A multi-jaw gripping device according to claim 1, c h a r a c T-shaped tensioning block ii (9) having an elongated T-shaped cross-section with two blind threaded holes at the small end of the T.
CN202123297298.1U 2021-12-24 2021-12-24 Multi-claw clamping device Active CN217095733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123297298.1U CN217095733U (en) 2021-12-24 2021-12-24 Multi-claw clamping device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123297298.1U CN217095733U (en) 2021-12-24 2021-12-24 Multi-claw clamping device

Publications (1)

Publication Number Publication Date
CN217095733U true CN217095733U (en) 2022-08-02

Family

ID=82590378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123297298.1U Active CN217095733U (en) 2021-12-24 2021-12-24 Multi-claw clamping device

Country Status (1)

Country Link
CN (1) CN217095733U (en)

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