CN214080325U - Clamping device for machining inner hole of cylindrical workpiece - Google Patents
Clamping device for machining inner hole of cylindrical workpiece Download PDFInfo
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- CN214080325U CN214080325U CN202023166896.0U CN202023166896U CN214080325U CN 214080325 U CN214080325 U CN 214080325U CN 202023166896 U CN202023166896 U CN 202023166896U CN 214080325 U CN214080325 U CN 214080325U
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Abstract
A clamping device for processing an inner hole of a cylindrical workpiece comprises a clamping base body, wherein a positioning round hole is formed in the center of the clamping base body; the outer periphery of the clamping seat body is a stepped column consisting of an upper large-diameter cylinder and a lower small-diameter cylinder, a plurality of tensioning rod holes are uniformly distributed on the clamping seat body, a tensioning rod is inserted into each tensioning rod hole, the lower end of each tensioning rod extends out of the bottom surface of the large-diameter cylinder of the clamping seat body, a rotating ring wrapping the tensioning rods is arranged at the periphery of the lower end of each tensioning rod, inclined grooves penetrating through the inner wall and the outer wall of the rotating ring are formed in the rotating ring corresponding to each tensioning rod, a shifting pin inserted into and fixed in a transverse hole of each tensioning rod is placed in each inclined groove, rotating handles are fixed on the periphery of the rotating ring, a check ring which is positioned at the lower part of the rotating ring and axially and radially positions the rotating ring is fixed on the small-diameter cylinder of the lower part of the clamping seat body, and a pressure plate for clamping workpieces is connected to the upper end of each tensioning rod. The utility model discloses a manual operation mode realizes having saved other power supplies and controlling means to the tight operation of clamp of work piece, simple structure, and is with low costs, and convenient operation is swift reliable, but the tight operation of clamp of wide application in cylinder class spare part finish machining.
Description
Technical Field
The utility model relates to a machine tool fixture, especially a clamping device is processed to cylinder work piece hole for the work piece that cylinder class spare part hole was processed man-hour is tight.
Background
When the inner hole of a cylindrical part is machined, a workpiece needs to be clamped and fixed on a workbench, for example, the inner hole of a stator of a cycloid hydraulic motor, the machining of multiple arc surfaces of the inner hole of a stator of a cycloid full-hydraulic steering gear and the like.
Disclosure of Invention
The utility model aims at providing a clamping device is processed to cylinder work piece hole adopts the manual operation mode to realize pressing from both sides tightly, overcomes hydraulic pressure or the defect that pneumatic clamping device structure is complicated, the mesa is in disorder, with high costs.
The purpose of the utility model is realized with the following mode: the clamping base body is a revolving body with an upper plane and a lower plane which are parallel to each other, and a positioning round hole is arranged in the center of the clamping base body; the periphery of the clamping base body is a stepped column consisting of an upper large-diameter cylinder and a lower small-diameter cylinder, a plurality of tension rod holes communicated with the bottom surface of the large-diameter cylinder of the clamping base body are uniformly distributed on a circle concentric with the central line of the clamping base body on the upper surface of the clamping base body, a tension rod is inserted into each tension rod hole, the lower end of each tension rod extends out of the bottom surface of the large-diameter cylinder of the clamping base body, a rotating ring wrapping the tension rods is arranged on the periphery of the lower end of each tension rod, inclined grooves penetrating through the inner wall and the outer wall of the rotating ring are arranged on the rotating ring corresponding to each tension rod, a shifting pin inserted into and fixed in the transverse hole of each tension rod is arranged in each inclined groove, at least one rotating handle is fixed on the periphery of the rotating ring, and a check ring which is positioned at the lower part of the rotating ring and axially and radially positions the rotating ring is fixed on the small-diameter cylinder on the lower part of the clamping base body; the upper ends of the tension rods are connected with a pressure plate for clamping a workpiece.
A threaded rod is connected in a central screw hole at the upper end of the tensioning rod through threads, a locking nut is screwed on the threaded rod, and an expanded raised head is arranged at the top of the threaded rod; the novel automatic tensioning device is characterized by comprising a pressure plate, wherein a middle hole of the pressure plate is formed in the center of the pressure plate, gourd holes corresponding to the number of tensioning rods are uniformly distributed on a circle which is concentric with the middle hole of the pressure plate and has the same diameter as that of a circle where the tensioning rod holes are formed in the pressure plate, each gourd hole is formed by connecting a round hole with a diameter larger than that of a raised head of a threaded rod with an arc groove with a width larger than that of the threaded rod and smaller than that of the raised head of the threaded rod, and the pressure plate is sleeved into the raised head of the tensioning rod through the gourd holes and then rotates towards the arc groove of the gourd hole to fix the pressure plate below the raised head of the tensioning rod.
The lower surface of the positioning round hole of the clamping seat body is provided with a reducing communicating hole, and the positioning round hole and the communicating hole are concentrically arranged and communicated to form a stepped hole. The communication holes are used for discharging debris, cooling liquid and other impurities.
1-3 rotating handles are distributed on the periphery of the rotating ring.
The utility model discloses when using, at first will the utility model discloses fix on the workstation of lathe or spare parts such as dividing head, then embolia the work piece on work piece positioner, work piece positioner fixes a position the round hole location through pressing from both sides tight pedestal, then embolia the pressure disk and rotate after the upper portion of threaded rod, make the threaded rod plush copper catch on the path part in pressure disk calabash hole, it makes the change rotate to rotate the turning handle, the chute of change moves down through dialling round pin pulling straining rod, the straining rod drives the threaded rod and moves down, the threaded rod stimulates the pressure disk downwards and pushes down the work piece, make the work piece pressed from both sides tightly between above pressing from both sides tight pedestal and below the pressure disk, remove work piece positioner, can process work piece hole face, reverse rotation change after processing is accomplished and is released, the clamp of work piece is released to the pressure disk, the pressure disk is taken off, then the work piece is taken off, accomplish the processing of a work piece.
The utility model discloses a manual operation mode realizes having saved other power supplies and controlling means to the tight operation of clamp of work piece, simple structure, and is with low costs, and convenient operation is swift reliable, but the tight operation of clamp of wide application in cylinder class spare part finish machining.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a front sectional view of the present invention.
Fig. 3 is a plan view of the present invention.
In the figure: 1-clamping the base; 2-pin pulling; 3-rotating; 4-a tension bar; 5-locking the nut; 6-a threaded rod; 7-pressing plate; 8-platen center hole; 9-positioning the round hole; 10-communicating holes; 11-a retainer ring; 12-a handle; 13-a chute; 14-gourd hole.
Detailed Description
Referring to fig. 1, 2 and 3, the clamping base body 1 is provided, the clamping base body 1 is a revolving body with an upper plane and a lower plane which are parallel to each other, a positioning round hole 9 is arranged at the center of the clamping base body 1, a reducing communication hole 10 is arranged below the positioning round hole 9 of the clamping base body 1, and the positioning round hole 9 and the communication hole 10 are concentrically arranged and communicated to form a stepped hole; the periphery of the clamping base body 1 is a stepped column consisting of an upper large-diameter cylinder and a lower small-diameter cylinder, a plurality of tension rod holes communicated with the bottom surface of the large-diameter cylinder of the clamping base body 1 are uniformly distributed on a circle concentric with the central line of the clamping base body 1, a tension rod 4 is inserted into each tension rod hole, the lower end of each tension rod 4 extends out of the bottom surface of the large-diameter cylinder of the clamping base body 1, a rotary ring 3 wrapping the tension rod 4 is arranged on the periphery of the lower end of each tension rod 4, inclined grooves 13 penetrating through the inner wall and the outer wall of the rotary ring 3 are arranged on the rotary ring 3 corresponding to each tension rod, a shifting pin 2 inserted and fixed in the transverse hole of each tension rod 4 is arranged in each inclined groove 13, three rotary handles 12 are uniformly distributed and fixed on the periphery of the rotary ring 3, and a retaining ring 11 which is positioned at the lower part of the rotary ring 3 and axially and radially positions the rotary ring 3 is fixed on the small-diameter cylinder at the lower part of the clamping base body 1; a threaded rod 6 is connected in a central threaded hole at the upper end of the tensioning rod 4 through threads, a locking nut 5 is screwed on the threaded rod 6, and a diameter-expanded raised head is arranged at the top of the threaded rod 6; there is a pressure disk 7, pressure disk 7 center has pressure disk mesopore 8, press disk 7 go up with pressure disk mesopore 8 concentric, with the calabash hole 14 of the 4 quantity of straining rods of equal distribution on the same footpath circle of straining rod hole place circle, calabash hole 14 is connected the circular hole that the width is greater than threaded rod 6 and is less than threaded rod plush head diameter by the diameter and constitutes, pressure disk 7 embolias the straining rod plush head through calabash hole 14 and rotates the pressure disk 11 below straining rod plush head to the circular arc groove direction of calabash hole 14.
Claims (4)
1. The utility model provides a clamping device for processing inner holes of cylindrical workpieces, which comprises a clamping base body and is characterized in that: the clamping base body (1) is a revolving body with an upper plane and a lower plane which are parallel to each other, and a positioning round hole (9) is arranged in the center of the clamping base body (1); the outer periphery of the clamping base body (1) is a stepped column consisting of an upper large-diameter cylinder and a lower small-diameter cylinder, a plurality of tension rod holes communicated with the bottom surface of the large-diameter cylinder of the clamping base body (1) are uniformly distributed on a circle concentric with the central line of the clamping base body (1), a tension rod (4) is inserted into each tension rod hole, the lower end of each tension rod (4) extends out of the bottom surface of the large-diameter cylinder of the clamping base body (1), a rotating ring (3) wrapping the tension rod (4) is arranged on the periphery of the lower end of each tension rod (4), inclined grooves (13) penetrating through the inner wall and the outer wall of the rotating ring (3) are arranged on each rotating ring (3) corresponding to each tension rod, a shifting pin (2) inserted and fixed in a transverse hole of each tension rod (4) is arranged in each inclined groove (13), at least one rotating handle (12) is fixed on the periphery of the rotating ring (3), and the small-diameter cylinder at the lower part of the clamping base body (1) is fixed on the lower part of the rotating ring (3) and axially and radially positions the rotating ring (3) The retainer ring (11); the upper ends of the tension rods (4) are connected with a pressure plate (7) used for clamping the workpiece.
2. The clamping device for processing the inner hole of the cylindrical workpiece according to claim 1, is characterized in that: a threaded rod (6) is connected in a central threaded hole at the upper end of the tensioning rod (4) through threads, a locking nut (5) is screwed on the threaded rod (6), and an expanded raised head is arranged at the top of the threaded rod (6); there is a pressure disk (7), pressure disk mesopore (8) are pressed in pressure disk (7) center, pressure disk (7) go up with pressure disk mesopore (8) concentric, with calabash hole (14) of corresponding tightening rod (4) quantity of equipartition on the same footpath of circle at tightening rod hole place circle, calabash hole (14) are connected the circular hole width that is greater than the diameter of threaded rod plush head and are greater than threaded rod (6) and be less than the circular arc groove constitution of threaded rod plush head diameter by the diameter, pressure disk (7) embolia the arc groove direction rotation of tightening rod plush hole (14) to tightening rod plush head through calabash hole (14) and fix pressure disk (7) in tightening rod plush head below.
3. The clamping device for processing the inner hole of the cylindrical workpiece according to claim 1, is characterized in that: the lower surface of a positioning round hole (9) of the clamping base body (1) is provided with a reducing communicating hole (10), and the positioning round hole (9) and the communicating hole (10) are concentrically arranged and communicated to form a stepped hole.
4. The clamping device for processing the inner hole of the cylindrical workpiece according to claim 1, is characterized in that: 1-3 rotating handles (12) are distributed on the periphery of the rotating ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023166896.0U CN214080325U (en) | 2020-12-25 | 2020-12-25 | Clamping device for machining inner hole of cylindrical workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023166896.0U CN214080325U (en) | 2020-12-25 | 2020-12-25 | Clamping device for machining inner hole of cylindrical workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214080325U true CN214080325U (en) | 2021-08-31 |
Family
ID=77432529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023166896.0U Active CN214080325U (en) | 2020-12-25 | 2020-12-25 | Clamping device for machining inner hole of cylindrical workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214080325U (en) |
-
2020
- 2020-12-25 CN CN202023166896.0U patent/CN214080325U/en active Active
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