CN208132471U - A kind of inner hole clamping device - Google Patents
A kind of inner hole clamping device Download PDFInfo
- Publication number
- CN208132471U CN208132471U CN201820610202.1U CN201820610202U CN208132471U CN 208132471 U CN208132471 U CN 208132471U CN 201820610202 U CN201820610202 U CN 201820610202U CN 208132471 U CN208132471 U CN 208132471U
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- cylindrical portion
- inner hole
- positioning ring
- clamping device
- support frame
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Abstract
The utility model relates to technical fields of mechanical processing, disclose a kind of inner hole clamping device comprising gripping block, support frame, positioning ring and positioning ball；Gripping block has the first cylindrical portion, the second cylindrical portion and work department, the diameter of first cylindrical portion is greater than the diameter of the second cylindrical portion, the outer surface of outer surface connection the first cylindrical portion and the second cylindrical portion of work department, the second cylindrical portion of two gripping blocks are inserted into the both ends of positioning ring respectively；Support frame is located on outside gripping block, and two support frames abut the both ends of the surface of positioning ring respectively, and the support frame end face abutted with positioning ring is circumferentially uniformly provided with multiple radially through grooves；Positioning ball is set in through slot.Fixture is threaded through in the inner hole of workpiece, two gripping blocks are mutually drawn close, and work department will drive positioning ball chuck clamping of workpieces, and the outer ring that all positioning balls are formed is round to be overlapped with the circle of the inner hole of workpiece, the outer circle and the female coaxial heart that can guarantee the workpiece processed, improve the machining accuracy of workpiece.
Description
Technical field
The utility model relates to technical field of mechanical processing more particularly to a kind of inner hole clamping devices.
Background technique
With machinery field fine design produce development, part processing precision determine final finished industrial product qualification with
It is no, thus the requirement to components precision is higher and higher, how to guarantee the machining accuracy of part, the positioning of frock clamp is very heavy
It wants.
Wherein, after the part of some tubuloses needs to clamp positioning to its inner hole, its outer surface could be carried out at processing
Reason.Processing tubular member is all to treat workpieces processing using three-jaw positioning clamping device to be positioned now.But three-jaw positions
The outer circle and the female coaxial heart of workpiece cannot be completely secured in clamping device, keep the element precision processed poor, can not answer
For high-accuracy mechanical equipment.
Therefore, a kind of inner hole clamping device is needed to solve above-mentioned technical problem.
Utility model content
The purpose of this utility model is that proposing a kind of inner hole clamping device, system safety with higher is enabled to
Property, stability and reliability.
For this purpose, the utility model uses following technical scheme：
A kind of inner hole clamping device, including：
Positioning ring；
Gripping block, the gripping block have the first cylindrical portion, the second cylindrical portion and work department, first cylindrical portion it is straight
Diameter is greater than the diameter of second cylindrical portion, and the outer surface of the work department connects first cylindrical portion and second cylinder
Second cylindrical portion of the outer surface in portion, two gripping blocks is inserted into the both ends of the positioning ring respectively；
Support frame is located on outside the gripping block, and internal diameter is equal with the diameter of first cylindrical portion, outer diameter with it is described
The outer diameter of positioning ring is equal, and two support frames as described above abut the both ends of the surface of the positioning ring respectively, and abut with the positioning ring
Support frame end face be circumferentially uniformly provided with multiple radially through grooves；
Ball is positioned, is set in the through slot.
Fixture is threaded through in the inner hole of workpiece, and two gripping blocks are mutually drawn close, and the work department of gripping block will drive positioning ball
It is moved to the direction far from support frame axis and clamps workpiece, the round circle weight with the inner hole of workpiece in the outer ring that all positioning balls are formed
It closes, the interior axially bored line of the axis and workpiece that make fixture is completely coincident, it is ensured that the outer circle of the workpiece processed and inner hole are same
Axle center improves the machining accuracy of workpiece.
Preferably, the side wall of side of the through slot far from the positioning ring is inclined-plane, and the inclined-plane can make to position ball
It is maintained in through slot.
Preferably, the quantity of the through slot is six on support frame as described above.
It preferably, further include spring, the opposite one end setting of two gripping blocks is fluted, the both ends point of the spring
It is not connected to the bottom of two grooves.Setting spring can enable gripping block self-return, after removing processing
Workpiece.
It preferably, further include connector, the gripping block is axially disposed through-hole, and the connector is arranged in described logical
In hole, two gripping blocks are linked together by connector.When setting connector can be such that two gripping blocks mutually draw close,
Connector can fix two gripping blocks, make clamp workpiece, process convenient for lathe to workpiece.
It preferably, further include support base, the support base is sheathed on first cylinder of one of gripping block
Portion, one end of the support base and support frame as described above are abutted against far from one end of the positioning ring.Support base can to workpiece into
Row support is clamped workpiece convenient for fixture.
It preferably, further include pedestal, the pedestal is located at side of the support base far from support frame as described above, the pedestal
It is integrally formed with the gripping block for being arranged with the support base.
Preferably, support frame as described above is bolted together with the positioning ring by first.
Preferably, multiple connecting holes are provided on the pedestal, the second bolt passes through connecting hole and pedestal is fixed on lathe
On.
The beneficial effects of the utility model are：Fixture is threaded through in the inner hole of workpiece, and two gripping blocks are mutually drawn close, and is clamped
The work department of block will drive positioning ball and move clamping workpiece to the direction far from support frame axis, and all positioning balls form outer
Circle is round to be overlapped with the circle of the inner hole of workpiece, and the interior axially bored line of the axis and workpiece that make fixture is completely coincident, it is ensured that is processed
The outer circle and the female coaxial heart of the workpiece come, improve the machining accuracy of workpiece.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inner hole clamping device provided by the utility model；
Fig. 2 is the main view of inner hole clamping device provided by the utility model；
Fig. 3 is the cross-sectional view in Fig. 2 along line A-A；
Fig. 4 is the structural schematic diagram of gripping block provided by the utility model；
Fig. 5 is the structural schematic diagram of support frame provided by the utility model.
1, gripping block；11, the first cylindrical portion；12, work department；13, the second cylindrical portion；14, groove；15, through-hole；
2, support frame；21, through slot；22, link slot；
3, positioning ring；4, ball is positioned；5, support base；6, pedestal；7, spring；8, connector.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figures 1 to 5, present embodiment discloses a kind of inner hole clamping devices comprising：Gripping block 1, support frame 2,
Positioning ring 3, positioning ball 4, spring 7, connector 8, support base 5 and pedestal 6.Gripping block 1 includes the first cylindrical portion 11, the second cylinder
Portion 13 and work department 12.The diameter of first cylindrical portion 11 is greater than the diameter of the second cylindrical portion 13.The outer surface of work department 12 connects
The outer surface of first cylindrical portion 11 and the second cylindrical portion 13.Second cylindrical portion 13 of two gripping blocks 1 is inserted into positioning ring 3 respectively
Both ends.
Support frame 2 is annular shape, is located on 1 periphery of gripping block, internal diameter is equal with the diameter of the first cylindrical portion 11, outer diameter
It is equal with the outer diameter of positioning ring 3.Two support frames 2 are connected to the both ends of the surface of positioning ring 3, and the branch abutted with positioning ring 3 respectively
2 end face of support is circumferentially uniformly provided with multiple radially through grooves 21.Positioning ball 4. is provided in through slot 21
Fixture is threaded through in the inner hole of workpiece, and two gripping blocks 1 are mutually drawn close, and the work department 12 of gripping block 1 will drive fixed
Position ball 4 is moved to the direction far from 2 axis of support frame, and with the inner hole wall of top tight workpiece, the outer ring that all positioning balls 4 are formed is round
It is overlapped with the circle of the inner hole of workpiece, the interior axially bored line of the axis and workpiece that make fixture is completely coincident, it is ensured that is processed
The outer circle and the female coaxial heart of workpiece, improve the machining accuracy of workpiece.
As shown in Figure 1 to Figure 3, two gripping blocks 1 are symmetrical arranged and interval is arranged.Two support frames 2 are symmetrical arranged, and one
Support frame 2 is provided with one end of through slot 21 and one end of positioning ring 3 and abuts against, another support frame 2 is provided with the one of through slot 21
It holds and is abutted against with the other end of positioning ring 3.Two gripping blocks 1 mutually draw close can make positioning ball 4 on two support frames 2 to
Direction far from axis moves, with the inner hole wall of top tight workpiece；It is symmetrical arranged two groups of support frames 2 and two groups of gripping blocks 1, Ke Yibao
When card clamps workpiece, the interior axially bored line of workpiece and the axis of fixture coincide, and workpiece will not run-off the straight.
Second cylindrical portion 13 of gripping block 1 is arranged fluted 14 far from one end of work department 12, and 7 one end of spring is connected to it
In a gripping block 1 groove 14 bottom, the other end is connected to the bottom of the groove 14 of another gripping block 1.Spring 7 is set
It can enable 1 self-return of gripping block, convenient for removing the workpiece after processing.
Support base 5 is sheathed on the first cylindrical portion 11 of one of gripping block 1, and one end of support base 5 and support frame 2 are separate
One end of positioning ring 3 abuts against.Support base 5 can be supported workpiece, be clamped convenient for fixture to workpiece.
Pedestal 6 is located at side of the support base 5 far from support frame 2, pedestal 6 be arranged with 1 one of gripping block of support base 5 at
Type.
Gripping block 1 is axially disposed through-hole 15, and connector 8 is arranged in through-hole 15, and two gripping blocks 1 pass through connector
8 link together.Connector 8 in the present embodiment is preferably third bolt, is provided with slot, the shape and third of slot on pedestal 6
The shape of the nut of bolt is identical.The other end of third bolt is bolted with third nut, and two folders can be made by tightening third nut
Tight block 1 is mutually drawn close, and the work department 12 of gripping block 1 drives positioning ball 4 to move out, with the inner hole wall of top tight workpiece.Third spiral shell
Bolt cooperates third nut to fix two gripping blocks 1, makes clamp workpiece, processes convenient for lathe to workpiece.
Support frame 2 is bolted together with positioning ring 3 by first, is provided with link slot 22 on the support frame, is connected
Connecting hole is provided at slot 22, the corresponding position of positioning ring 3 is also provided with threaded hole, and the first bolt passes through connecting hole, is bolted in
Threaded hole on positioning ring 3 links together support frame 2 and positioning ring 3.
As shown in Figure 3 and Figure 4, multiple connecting holes are provided on pedestal 6, the second bolt passes through connecting hole, and pedestal 6 is fixed
In on lathe.In the present embodiment preferably, the outer surface of work department 12 is inclined-plane；The outer surface of certain work department 12 is also possible to
Concave arc curved surface or convex arc curved surface.
As shown in Figure 3 and Figure 5, the side wall of the side of the remotely located ring 3 of through slot 21 is inclined-plane, and inclined-plane is in 2 inside of support frame
Distance of one end distance close to the end face of positioning ring 3 be greater than inclined-plane the outside of support frame 2 one end distance close to positioning ring 3
The distance of end face；Inclined-plane can be such that positioning ball 4 is maintained in through slot 21, will not fall off.
It (can certainly be three, four, five, seven, eight etc. that the quantity of through slot 21, which is six, on support frame 2
Deng), six through slots 21 are uniformly arranged in the circumferential direction on support frame 2.Positioning ball 4 is provided in each through slot 21.
It is preferably steel ball that ball 4 is positioned in the present embodiment, naturally it is also possible to be sphere made of other hard wear-resistant materials.
Inner hole clamping device in the present embodiment use process is as follows：Workpiece is covered on fixture, by support base 5 to work
Part is supported；Tighten third nut, draw close two gripping blocks 1 mutually, the work department 12 of gripping block 1 drive positioning ball 4 to
Outer movement, with the inner hole wall of top tight workpiece；Lathe processes the outer surface of workpiece；After completing the process, third spiral shell is unclamped
Mother, two gripping blocks 1 are located remotely from each other under the action of spring 7, remove the workpiece after processing.
The Applicant declares that the utility model has carried out illustrative description through the foregoing embodiment, it is clear that the utility model
Specific implementation is not subject to the restrictions described above, as long as using the various non-of the conception and technical scheme progress of the utility model
Substantial improvement, or it is not improved the conception and technical scheme of the utility model are directly applied into other occasions, exist
Within the protection scope of the utility model.
Claims (9)
1. a kind of inner hole clamping device, which is characterized in that including：
Positioning ring (3)；
Gripping block (1), the gripping block (1) has the first cylindrical portion (11), the second cylindrical portion (13) and work department (12), described
The diameter of first cylindrical portion (11) is greater than the diameter of second cylindrical portion (13), and the outer surface of the work department (12) connects institute
State the outer surface of the first cylindrical portion (11) and second cylindrical portion (13), second cylinder of two gripping blocks (1)
Portion (13) is inserted into the both ends of the positioning ring (3) respectively；
Support frame (2) is located on the gripping block (1) outside, and internal diameter is equal with the diameter of first cylindrical portion (11), outer diameter
Equal with the outer diameter of the positioning ring (3), two support frames as described above (2) abut the both ends of the surface of the positioning ring (3) respectively, and with
Support frame (2) end face that the positioning ring (3) abuts circumferentially is uniformly provided with multiple radially through grooves (21)；
It positions ball (4), is set in the through slot (21).
2. inner hole clamping device according to claim 1, which is characterized in that the through slot (21) is far from the positioning ring
(3) side wall of side is inclined-plane, and the inclined-plane can be such that positioning ball (4) is maintained in through slot (21).
3. inner hole clamping device according to claim 2, which is characterized in that the through slot (21) on support frame as described above (2)
Quantity be six.
4. inner hole clamping device according to claim 1, which is characterized in that further include spring (7), two gripping blocks
(1) fluted (14) are arranged in opposite one end, and the both ends of the spring (7) are connected to the bottom of two grooves (14) respectively
Portion.
5. inner hole clamping device according to claim 1, which is characterized in that further include connector (8), the gripping block
(1) axially disposed to have through-hole (15), the connector (8) is arranged in the through-hole (15), and two gripping blocks (1) are logical
Connector (8) is crossed to link together.
6. inner hole clamping device according to claim 1, which is characterized in that further include support base (5), the support base
(5) be sheathed on first cylindrical portion (11) of one of them gripping block (1), one end of the support base (5) with it is described
Support frame (2) is abutted against far from the one end of the positioning ring (3).
7. inner hole clamping device according to claim 6, which is characterized in that it further include pedestal (6), pedestal (6) position
In the side of the support base (5) far from support frame as described above (2), the pedestal (6) and the clamping for being arranged with the support base (5)
Block (1) is integrally formed.
8. inner hole clamping device according to claim 1, which is characterized in that support frame as described above (2) and the positioning ring (3)
It is bolted together by first.
9. inner hole clamping device according to claim 7, which is characterized in that be provided with multiple connections on the pedestal (6)
Hole, the second bolt pass through the connecting hole and pedestal (6) are fixed on lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820610202.1U CN208132471U (en) | 2018-04-26 | 2018-04-26 | A kind of inner hole clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820610202.1U CN208132471U (en) | 2018-04-26 | 2018-04-26 | A kind of inner hole clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208132471U true CN208132471U (en) | 2018-11-23 |
Family
ID=64310442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820610202.1U Active CN208132471U (en) | 2018-04-26 | 2018-04-26 | A kind of inner hole clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208132471U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720299A (en) * | 2020-12-24 | 2021-04-30 | 卢雅 | Car sheet metal component hole positioner |
| CN113500440A (en) * | 2021-07-23 | 2021-10-15 | 意特利（滁州）智能数控科技有限公司 | Cutter clamping mechanism, tool magazine and numerical control machine tool |
| CN115156966A (en) * | 2022-07-12 | 2022-10-11 | 重庆蓝黛传动机械有限公司 | Clamp for end press |
-
2018
- 2018-04-26 CN CN201820610202.1U patent/CN208132471U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112720299A (en) * | 2020-12-24 | 2021-04-30 | 卢雅 | Car sheet metal component hole positioner |
| CN113500440A (en) * | 2021-07-23 | 2021-10-15 | 意特利（滁州）智能数控科技有限公司 | Cutter clamping mechanism, tool magazine and numerical control machine tool |
| CN115156966A (en) * | 2022-07-12 | 2022-10-11 | 重庆蓝黛传动机械有限公司 | Clamp for end press |
| CN115156966B (en) * | 2022-07-12 | 2024-01-02 | 重庆蓝黛传动机械有限公司 | Clamp for end press |
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