CN210499275U

CN210499275U - Bowl-shaped piece clamping device

Info

Publication number: CN210499275U
Application number: CN201920701951.XU
Authority: CN
Inventors: 张瑞洋
Original assignee: Kunshan Daiyi Precision Machinery Co Ltd
Current assignee: Kunshan Daiyi Precision Machinery Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-05-12
Anticipated expiration: 2029-05-16

Abstract

The utility model provides a bowl-shaped piece clamping device, which comprises a flange seat, wherein a pushing mechanism is arranged in the flange seat, and the output end of the pushing mechanism is connected with an inner sliding sleeve; the flange seat tip is equipped with the spacing ring, be equipped with six at least through-holes that evenly set up on the spacing ring, the outside cover of spacing ring has straining device, and this device can press from both sides tight product inboard and the tensioning product outside simultaneously through the slip of inner sliding sleeve, when the fixed part, prevents effectively that the product from warping.

Description

Bowl-shaped piece clamping device

Technical Field

The utility model relates to a machining equipment field especially relates to bowl-shaped spare clamping device.

Background

The product structure shown in fig. 1 is a bowl-shaped structure, and the reason that the processing is difficult in the early stage is as follows: 1. the single inner expansion outer measurement is characterized in that the product belongs to a thin-wall part, and the product is shaped and deformed by expansion to generate an ellipse and an irregularity. 2. The inner side is singly clamped, the product is turned to form resonant corrugations, the product is large in ellipse, the noise is too large in the product machining process, and a cutter is easy to wear and age.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a bowl-shaped piece clamping device, which comprises a flange seat, wherein a pushing mechanism is arranged in the flange seat, and the output end of the pushing mechanism is connected with an inner sliding sleeve;

the end part of the flange seat is provided with a limiting ring, the limiting ring is provided with at least six through holes which are uniformly arranged, and a tensioning mechanism is sleeved outside the limiting ring;

the inner sliding sleeve and the limiting ring are arranged concentrically; oblique-pulling clamping blocks and oblique-pulling tensioning blocks are arranged in the through holes at intervals, inner pull grooves corresponding to the oblique-pulling clamping blocks are formed in the inner sliding sleeve, and outer push grooves corresponding to the oblique-pulling tensioning blocks are formed in the outer wall of the inner sliding sleeve;

the pushing mechanism pushes the inner sliding sleeve to slide axially on the flange seat, and drives the oblique-pulling clamping block to slide towards the center of the limiting ring, and drives the oblique-pulling tensioning ring to slide outwards from the limiting ring.

Preferably, the tensioning mechanism comprises an outer piston ring sleeved on the limiting ring, and a rubber ring is sleeved outside the outer piston ring.

Preferably, the outer piston ring comprises an elastic ring body, a first notch is formed in the elastic ring body, first elongated holes are formed in two sides of the first notch, positioning nails penetrate through the first elongated holes, and the positioning nails are fixed on the limiting ring.

Preferably, the rubber ring comprises a rubber ring body, a protruding ring is arranged on the circumference of the rubber ring body, a second notch corresponding to the elastic ring body is arranged on the rubber ring body, corresponding second elongated holes are formed in two sides of the notch, and the head of the positioning nail is located in the second elongated holes.

Preferably, the pushing mechanism comprises a pushing column, a pushing block is arranged on the pushing column, a plurality of equal-height columns are arranged on the pushing block, and the equal-height columns are connected to the inner sliding sleeve.

Preferably, the number of the inner pull grooves is at least 3, the inner pull grooves are evenly formed in the inner sliding sleeve, each inner pull groove comprises a square cut, two convex blocks are arranged on the upper portions of the square cuts, inclined planes are arranged on two sides of each convex block, and the inclined planes incline towards the direction of the circle center of the inner sliding sleeve.

Preferably, the oblique-pulling clamping block comprises a cylindrical body, rectangular grooves obliquely arranged are formed in two sides of the cylindrical body, the rectangular grooves are matched with the protruding blocks, the cylindrical body points to one side of the limiting ring in a circular shape, an arc-shaped surface is arranged on one side of the limiting ring in a pointing mode, and anti-skidding lines are arranged on the arc-shaped surface.

Preferably, the outward pushing groove comprises at least three first inclined cutting surfaces positioned on the upper part of the inner sliding sleeve, and the first inclined cutting surfaces are uniformly arranged on the upper part of the inner sliding sleeve.

Preferably, the oblique tensioning piece that draws includes the cylindricality block, cylindricality block tip is equipped with the second scarf, the second scarf with first scarf laminates mutually.

Preferably, the pushing mechanism is provided with a rear end cover in a clamping manner, the limiting ring is provided with a front end cover, the front end cover is provided with a positioning seat, and the positioning seat is provided with three guide convex blocks which are uniformly arranged.

The utility model provides a bowl-shaped spare clamping device has following beneficial effect: this device passes through the slip of inner sliding sleeve, when the fixed part, can press from both sides tight product inboard and tensioning product outside simultaneously, prevents effectively that the product from warping.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

FIG. 1 is a schematic view of a thin-walled bowl-shaped workpiece of the prior art;

FIG. 2 is a schematic view of the workpiece after installation;

fig. 3 is a schematic perspective view of the present invention;

fig. 4 is an assembly schematic view of the flange seat and the inner sliding sleeve of the present invention;

fig. 5 is an assembled cross-sectional view of the diagonal clamping block and the inner sliding sleeve of the present invention;

fig. 6 is a schematic perspective view of a flange seat according to the present invention;

FIG. 7 is a perspective view of the inner sliding sleeve of the present invention;

FIG. 8 is a schematic view of a tensioning mechanism;

FIG. 9 is a side schematic view of the tensioning mechanism;

FIG. 10 is a schematic view of a pushing mechanism

FIG. 11 is a schematic view of a cable-stayed clamping block;

wherein, 1, a flange seat; 2. a limiting ring; 3. an inner sliding sleeve; 4. a through hole; 5. a cable-stayed clamping block; 6. obliquely pulling the tensioning block; 7. an outer piston ring; 8. a rubber ring; 9. positioning nails; 10. a first elongated hole; 11. pushing the column; 12. a pushing block; 13. an equal-height column; 14. a square cut; 15. a bump; 16. a bevel; 17. a rectangular groove; 18. anti-skid lines; 19. a front end cover; 20. positioning seats; 21. and a guide projection.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 2 and 3, the utility model provides a bowl-shaped piece clamping device, including flange seat 1, be equipped with pushing mechanism in the flange seat 1, the pushing mechanism output is connected with inner sliding sleeve 3, pushing mechanism includes pushing post 11, be equipped with pushing block 12 on pushing post 11, be equipped with a plurality of contour columns 13 on pushing block 12, contour columns 13 connect in inner sliding sleeve 3, can connect on pushing mechanism through pushing post 11, like on the cylinder, can promote inner sliding sleeve 3 to make a round trip to slide; with the 3 complex of inner sliding sleeve draw to one side and press from both sides tight piece 5 and draw tensioning piece 6 to one side, through the slip of inner sliding sleeve 3 to drive draw to one side and press from both sides tight piece 5 to spacing ring 2 center slides, drives to draw tensioning ring to one side and slide 2 outsides of spacing ring, with inside the tensioning of realizing the work piece simultaneously and compressing tightly and outside tensioning.

Specifically, the method comprises the following steps: as shown in fig. 4-6, the end of the flange seat 1 is provided with a limiting ring 2, the limiting ring 2 is provided with at least six uniformly arranged through holes 4, the six uniformly arranged through holes 4 are alternately provided with an oblique-pulling clamping block 5 and an oblique-pulling tensioning block 6, the inner sliding sleeve 3 is concentrically arranged with the limiting ring 2, the inner sliding sleeve 3 is provided with an inner pull groove corresponding to the oblique-pulling clamping block 5, the outer wall is provided with an outer push groove corresponding to the oblique-pulling tensioning block 6, the number of the inner pull grooves is at least 3, and the inner pull grooves are uniformly arranged on the inner sliding sleeve 3, each inner pull groove comprises a square cut 14, the upper part of each square cut 14 is provided with two convex blocks 15, the two sides of each convex block 15 are provided with inclined planes 16, the inclined planes 16 incline towards the circle center direction of the inner sliding sleeve 3, the inclined planes 16 at the lower part are cut to the bottom of the inner sliding sleeve 3, so that the bottoms of, the two sides of the cylindrical body are provided with rectangular grooves 17 which are obliquely arranged, the rectangular grooves 17 are matched with the convex blocks 15, the convex blocks 15 on the inner sliding sleeve 3 can be clamped in the rectangular grooves 17 of the cylindrical body, the oblique direction of the rectangular grooves 17 is towards the center of the inner sliding sleeve 3, when the inner sliding sleeve 3 is matched with the cylindrical body, the three oblique-pulling clamping blocks 5 can be driven to simultaneously contract inwards to clamp a workpiece, in order to increase the clamping stability, one side of the cylindrical body, which points to the circular shape of the limiting ring, is provided with an arc-shaped surface, anti-skid grains 18 are arranged on the arc-shaped surface, the arc-shaped surface is attached to the central position of the workpiece, and the arranged anti-skid grains 18 can increase the stability;

simultaneously, as shown in fig. 7, because 3 upper portions of inner sliding sleeve are equipped with the extrapolation groove, the extrapolation groove is including being located the at least three first scarf on 3 upper portions of inner sliding sleeve, first scarf evenly set up with 3 upper portions of inner sliding sleeve, tensioning block 6 is drawn to one side includes the cylindricality block, cylindricality block tip is equipped with the second scarf, the second scarf with first scarf is laminated mutually, and when inner sliding sleeve 3 was promoted when sliding forward, first scarf drove the 3 external motion of 3 inside sliding sleeves of cylindricality block, and the cylindricality block stretches out inner sliding

sleeve

3, and 2 outside covers in the outside spacing ring of flange seat 1 have straining device, expand straining device, can rise to the outside of work piece.

Specifically speaking, as shown in fig. 8 and fig. 9, the tensioning mechanism includes an outer piston ring 7 sleeved on the limit ring 2, a rubber ring 8 is sleeved outside the outer piston ring 7, the outer piston ring 7 includes an elastic ring body, a first notch is provided on the elastic ring body, a first elongated hole 10 is provided on both sides of the first notch, a positioning nail 9 passes through the first elongated hole 10, the positioning nail 9 is fixed on the limit ring 2, the elastic ring body can be an aluminum alloy sheet, when a cylindrical block is pressed on the aluminum alloy sheet, the balanced pressure is prevented, deformation at the extrusion position is prevented, the rubber ring 8 includes a rubber ring body, a protruding ring is provided on the circumference of the rubber ring body, a second notch corresponding to the elastic ring body is provided on the rubber ring body, corresponding second elongated holes are provided on both sides of the notch, the head of the positioning nail 9 is located in the second elongated hole, when outwards sliding through the cylindricality block, push up tight outer piston ring 7, because outer piston ring 7 is the open-ended setting, can take place deformation for the second breach grow of first breach and rubber circle 8 can slide along the elongated hole, and then makes 8 diameter grow of whole rubber circle, can play the purpose of tensioning work piece.

As shown in fig. 10, the pushing mechanism is provided with a rear end cover, the limiting ring is provided with a front end cover 19, the front end cover 19 and the rear end cover play a role of a stable structure, the front end cover 19 is provided with a positioning seat 20, the positioning seat 20 is provided with three guide protrusions 2115 which are uniformly arranged, the surface of each guide protrusion 2115 is an inclined plane 16, and the pushing mechanism can adapt to an arc-shaped structure on the inner edge of a product, so that the product is further prevented from deforming.

The utility model discloses a using-way is, detain on positioning seat 20 as shown in figure 1 work piece, middle salient stretches to draw to one side three and presss from both sides between tight piece 5, outside edge overlaps on rubber circle 8, rear portion connection pushing mechanism promotes the motion of inner sliding sleeve 3 to the spacing ring direction of flange seat 1, it presss from both sides tight piece 5 shrink to draw to one side to drive three through inner sliding sleeve 3, drive the extension of oblique tension piece 6, press from both sides tight three supplementary elasticity of side simultaneously with the work piece and rise, prevent effectively that the work piece from being out of shape to ellipse or other irregular shapes.

Various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bowl-shaped piece clamping device is characterized by comprising a flange seat, wherein a pushing mechanism is arranged in the flange seat, and the output end of the pushing mechanism is connected with an inner sliding sleeve;

2. A bowl clamping device according to claim 1, wherein the tensioning means comprises an outer collar fitted over the stop collar, the outer collar having a rubber ring fitted over it.

3. The bowl clamping device according to claim 2, wherein the outer piston ring comprises an elastic ring body, a first notch is arranged on the elastic ring body, first elongated holes are arranged on two sides of the first notch, positioning nails penetrate through the first elongated holes and are fixed on the limiting ring.

4. The bowl clamping device according to claim 3, wherein the rubber ring comprises a rubber ring body, a protruding ring is arranged on the circumference of the rubber ring body, a second notch corresponding to the elastic ring body is arranged on the rubber ring body, corresponding second elongated holes are arranged on two sides of the notch, and the positioning nail head is located in the second elongated hole.

5. A bowl clamping device according to claim 1, wherein the pushing mechanism includes a pushing post having a pushing block thereon, the pushing block having a plurality of equal height posts thereon, the equal height posts being connected to the inner sleeve.

6. The bowl clamping device according to claim 1, wherein the number of the inner pull grooves is at least 3, the inner pull grooves are uniformly arranged on the inner sliding sleeve, each inner pull groove comprises a square cut, two convex blocks are arranged on the upper portion of each square cut, inclined planes are arranged on two sides of each convex block, and the inclined planes are inclined towards the center of the inner sliding sleeve.

7. The bowl-shaped clamping device according to claim 6, wherein the inclined clamping block comprises a cylindrical body, rectangular grooves are obliquely arranged on two sides of the cylindrical body, the rectangular grooves are matched with the lugs, an arc-shaped surface is arranged on one side of the cylindrical body, which faces the circle of the limiting ring, and anti-skid threads are arranged on the arc-shaped surface.

8. The bowl clamping device according to claim 1, wherein the outer push out notch comprises at least three first chamfered surfaces located at an upper portion of the inner sliding sleeve, and the first chamfered surfaces are uniformly arranged with the upper portion of the inner sliding sleeve.

9. A bowl clamping device according to claim 8, wherein the diagonal tension block comprises a cylindrical block having a second chamfered surface at an end thereof, the second chamfered surface being in abutment with the first chamfered surface.

10. The bowl clamping device according to claim 1, wherein the pushing mechanism is provided with a rear cover, the retainer ring is provided with a front cover, the front cover is provided with a positioning seat, and the positioning seat is provided with three guide lugs which are arranged in a uniform manner.