CN203751712U - Jig applied to part with central hole - Google Patents
Jig applied to part with central hole Download PDFInfo
- Publication number
- CN203751712U CN203751712U CN201320828314.1U CN201320828314U CN203751712U CN 203751712 U CN203751712 U CN 203751712U CN 201320828314 U CN201320828314 U CN 201320828314U CN 203751712 U CN203751712 U CN 203751712U
- Authority
- CN
- China
- Prior art keywords
- hole
- expansion rod
- gripping sleeve
- clamping
- plate
- 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
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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model discloses a jig applied to a part with a central hole. The jig comprises a bottom plate and a liftable clamping component arranged on the bottom plate, and is characterized in that the clamping component comprises a liftable hollow clamping sleeve with a first through hole; at least part (including the upper end part) of the clamping sleeve is fork-shaped, and the upper end part is provided with bulges which are protruded towards two sides; the lower surfaces of the bulges are flat surfaces vertical to the clamping sleeve; the first through hole is a threaded hole; an expansion rod is arranged in a manner of passing through the first through hole; the expansion rod comprises a rod-shaped expansion rod main body and an upper cover; the rod-shaped expansion rod main body is provided with an external thread and is in threaded connection with the first through hole; the upper cover is connected to the expansion rod main body, and the radial size of the upper cover is greater than the inner diameter of the first through hole. According to the jig, after the clamping sleeve passes through the hole of a workpiece , the expansion rod is screwed into the clamping sleeve so as to support up the clamping sleeve, and the bulges of the expansion rod and the upper surface of the base axially compress the workpiece at the moment so as to generate static friction, so that the expansion rod is prevented from rotating axially; by virtue of such a mode, the structure is simple, and a clamping force is applied to the end surface, so that the workpiece can not be damaged by clamping.
Description
Technical field
The utility model relates to a kind of fixture, is a kind of fixture for clamping hole type parts specifically.
Background technology
In machining, usually can run into some hole type parts, for these hole type parts, during clamping, conventionally adopt the cylindrical mandrel clamping of feeling relieved, if but need to add and also need man-hour to limit it around the rotation of axis in its periphery or the fixing position of end face, for this situation, installation way of the prior art is varied, the even employing chuck having carries out clamping, as a rule, this class part is all comparatively accurate, if be directly clamped on the periphery of part, tend to crush part, and the complexity that all compares of the installation way structure of this class,
Utility model content
The technical problems to be solved in the utility model is to provide a kind of simple in structure and be not easy to crush the novel clamp of workpiece.
For addressing the above problem, the utility model provides a kind of tool that is applied to be provided with centre bore part, comprise base plate and be arranged on liftable clamp assembly on described base plate, it is characterized in that, described clamp assembly comprises liftable and is provided with the hollow gripping sleeve of the first through hole, described gripping sleeve at least partly but comprise that its upper end is forked, and described upper end is provided with the lug boss protruding to both sides, the lower surface of described lug boss is the plane vertical with described gripping sleeve, described the first through hole is screwed hole, through described the first through hole, be provided with an expansion rod, described expansion rod comprises and is provided with external screw thread and the shaft-like expansion rod main body being connected with described the first through hole whorl and is connected in described expansion rod main body and radial dimension is greater than the upper cover of the internal diameter of described the first through hole.
As of the present utility model further, described base plate is provided with the second through hole of vertical perforation, described base plate also comprises the train wheel bridge setting gradually from top to down, swivel plate and lower plate, on described swivel plate, lower surface is respectively equipped with ring-type the first groove and the second groove that cross section is respectively inverted T-shaped and T shape, described train wheel bridge and lower plate lower surface and upper surface are respectively equipped with described the first groove and the second groove mates and can distinguish the first projection and the second projection sliding therein, described the second through hole is positioned at described swivel plate place and is provided with internal thread, it can be threaded connection with can stretch in described through hole and be provided with externally threaded gripping sleeve, on described train wheel bridge or lower plate, be also vertically provided with a chute, the slide block that is arranged on the protrusion of one on described gripping sleeve can slide in described chute.
As of the present utility model further, the lower surface of described lower plate is provided with four in rectangular layout and contour feets.
The beneficial effects of the utility model are, gripping sleeve is passed in the hole of workpiece, after expansion rod is screwed in gripping sleeve and props up gripping sleeve is propped up, now the lug boss of expansion rod and the upper surface of base plate are by workpiece axial compression, thereby generation stiction, prevents that expansion rod is around axial rotation, and this mode is simple in structure, and because clamping force acts on end face, can not crush workpiece.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein: 2-lower plate; 4-swivel plate; 6-train wheel bridge; 8-gripping sleeve; 10-expansion rod main body; 12-upper cover; 14-expansion rod; 16-the first through hole; 18-lug boss; 20-the first projection; 22-the first groove; 24-the second groove; 26-the second projection.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details.
As shown in Figure 1, the utility model comprises base plate and is arranged on liftable clamp assembly on base plate, it is characterized in that, clamp assembly comprises liftable and is provided with the hollow gripping sleeve 8 of the first through hole 16, gripping sleeve 8 at least partly but comprise that its upper end is forked, and upper end is provided with the lug boss 18 protruding to both sides, the lower surface of lug boss 18 is the plane vertical with gripping sleeve 8, the first through hole 16 is screwed hole, through the first through hole 16, be provided with an expansion rod 14, expansion rod 14 comprises shaft-like expansion rod 14 main bodys 10 that are provided with external screw thread and are threaded with the first through hole 16 and is connected in expansion rod 14 main bodys 10 and radial dimension is greater than the upper cover 12 of the internal diameter of the first through hole 16.
The utility model in use, gripping sleeve 8 is passed in the hole of workpiece, after expansion rod 14 is screwed in gripping sleeve 8 and props up gripping sleeve 8 is propped up, now the lug boss 18 of expansion rod 14 and the upper surface of base plate are by workpiece axial compression, thereby generation stiction, prevents that expansion rod 14 is around axial rotation, and this mode is simple in structure, and because clamping force acts on end face, can not crush workpiece.
As of the present utility model further, base plate is provided with the second through hole of vertical perforation, base plate also comprises the train wheel bridge 6 setting gradually from top to down, swivel plate 4 and lower plate 2, on swivel plate 4, lower surface is respectively equipped with ring-type the first groove 22 and the second groove 24 that cross section is respectively inverted T-shaped and T shape, train wheel bridge 6 and lower plate 2 lower surfaces and upper surface are respectively equipped with the first projection 20 and the second projection 26 that mates with the first groove 22 and the second groove 24 and can slide therein in difference, the second through hole is positioned at swivel plate 4 places and is provided with internal thread, it can be threaded connection with can stretch in through hole and be provided with externally threaded gripping sleeve 8, on train wheel bridge 6 or lower plate 2, be also vertically provided with a chute, the slide block that is arranged on the protrusion of one on gripping sleeve 8 can slide in chute.
The first groove 22 and the second groove 24 of the first projection 20 and T shape and the cooperation of the second projection 26 that to have adopted cross section be inverted T-shaped, this structure can guarantee swivel plate 4 between lower plate 2 and train wheel bridge 6 and can relatively rotate, because swivel plate 4 is threaded connection with 8 of gripping sleeves, and gripping sleeve 8 circumferential movement are limited by slide block, therefore when swivel plate 4 rotates, gripping sleeve 8 will move up and down, and this mode is simple in structure easy to operate.
As of the present utility model further, the lower surface of lower plate 2 is provided with four in rectangular layout and contour feets.
Feet is set, is convenient to it and erects, be conducive to it and put stably.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify and all should be equivalent substitute mode, within being included in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (3)
1. a tool that is applied to be provided with centre bore part, comprise base plate and be arranged on liftable clamp assembly on described base plate, it is characterized in that, described clamp assembly comprises liftable and is provided with the hollow gripping sleeve of the first through hole, described gripping sleeve at least partly but comprise that its upper end is forked, and described upper end is provided with the lug boss protruding to both sides, the lower surface of described lug boss is the plane vertical with described gripping sleeve, described the first through hole is screwed hole, through described the first through hole, be provided with an expansion rod, described expansion rod comprises and is provided with external screw thread and the shaft-like expansion rod main body being connected with described the first through hole whorl and is connected in described expansion rod main body and radial dimension is greater than the upper cover of the internal diameter of described the first through hole.
2. a kind of tool that is applied to be provided with centre bore part according to claim 1, it is characterized in that, described base plate is provided with the second through hole of vertical perforation, described base plate also comprises the train wheel bridge setting gradually from top to down, swivel plate and lower plate, on described swivel plate, lower surface is respectively equipped with ring-type the first groove and the second groove that cross section is respectively inverted T-shaped and T shape, described train wheel bridge and lower plate lower surface and upper surface are respectively equipped with described the first groove and the second groove mates and can distinguish the first projection and the second projection sliding therein, described the second through hole is positioned at described swivel plate place and is provided with internal thread, it can be threaded connection with can stretch in described through hole and be provided with externally threaded gripping sleeve, on described train wheel bridge or lower plate, be also vertically provided with a chute, the slide block that is arranged on the protrusion of one on described gripping sleeve can slide in described chute.
3. a kind of tool that is applied to be provided with centre bore part according to claim 2, the lower surface of described lower plate is provided with four in rectangular layout and contour feets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828314.1U CN203751712U (en) | 2013-12-17 | 2013-12-17 | Jig applied to part with central hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828314.1U CN203751712U (en) | 2013-12-17 | 2013-12-17 | Jig applied to part with central hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203751712U true CN203751712U (en) | 2014-08-06 |
Family
ID=51247023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828314.1U Expired - Fee Related CN203751712U (en) | 2013-12-17 | 2013-12-17 | Jig applied to part with central hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203751712U (en) |
-
2013
- 2013-12-17 CN CN201320828314.1U patent/CN203751712U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20141217 |
|
| EXPY | Termination of patent right or utility model |