CN215147045U - Clamping device for thin-wall part machining - Google Patents

Abstract

The application discloses a clamping device for thin-wall part machining, which comprises an objective table, wherein a through adjusting screw hole is formed in the objective table, a rotating stand column is installed in the adjusting screw hole in a matched mode, three ejecting blocks which are arranged at equal intervals are arranged on the rotating stand column in a sleeved mode, and the linear distance from each point on the same horizontal plane on the side wall of each ejecting block to the circle center of the rotating stand column on the plane is increased in an equal difference mode along the clockwise direction or the anticlockwise direction; the objective table is provided with a support frame, and the ejection block is arranged between the support frame and the rotating upright post; the top of the support frame is provided with three through holes corresponding to the positions of the ejection blocks respectively, ejection rods are arranged in the through holes in a sliding mode, the head ends of the ejection rods abut against the side walls of the ejection blocks, and the tail ends of the ejection rods extend to the outside of the support frame. The clamping device for thin-wall part machining can improve the machining quality and efficiency of workpieces.

Description

Clamping device for thin-wall part machining

Technical Field

The application relates to the technical field of part clamping equipment, in particular to a clamping device for thin-wall part machining.

Background

In the process of machining the thin-wall part, a workpiece needs to be clamped firstly and then machined. The prior art adopts a traditional support table to clamp and support parts. However, since the side wall of the workpiece is thin, the thin wall is easily deformed by the force during machining, thereby affecting the machining quality and efficiency of the workpiece.

SUMMERY OF THE UTILITY MODEL

The application aims at providing the clamping device for machining the thin-wall part, so that the probability of stress deformation of a workpiece in the machining process is reduced, the clamping stability of the workpiece is improved, and the machining quality and the machining efficiency of the workpiece are effectively improved.

In order to achieve the purpose, the clamping device for thin-wall part machining comprises an objective table, wherein a through adjusting screw hole is formed in the objective table, a rotating upright post is installed in the adjusting screw hole in a matched mode, three ejecting blocks are arranged on the rotating upright post in an encircling mode and are arranged at equal intervals, and the linear distance from each point on the same horizontal plane on the side wall of each ejecting block to the circle center of the rotating upright post on the plane is increased in an equal difference mode along the clockwise direction or the anticlockwise direction; the objective table is provided with a support frame, and the ejection block is arranged between the support frame and the rotating upright post; the top of the supporting frame is provided with three through holes corresponding to the positions of the ejection blocks respectively, ejection rods are arranged in the through holes in a sliding mode, the head ends of the ejection rods abut against the side walls of the ejection blocks, and the tail ends of the ejection rods extend to the outside of the supporting frame.

Based on the structure, the rotating upright post is rotated, the ejection block rotates along with the rotating upright post to eject the ejection rod out, so that the workpiece sleeved outside the support frame is positioned and clamped, the side wall of the workpiece is supported, the situation of stress application deformation of the thin wall in the machining process is prevented, the workpiece is fixed, the workpiece is prevented from position change in the machining process, and the clamping stability of the workpiece is improved.

Preferably, the top of the object stage is provided with three support columns arranged at equal intervals along the axis of the adjusting screw hole, and the bottom of the workpiece is supported on the top surfaces of the three support columns.

Furthermore, the workpiece is prevented from being directly located on the objective table at the bottom under the supporting effect of the three supporting columns, and when an external force is applied, the suspended part on the workpiece is released by the stress, so that the deformation of the workpiece is reduced when the force is applied, and the processing quality and the efficiency of the workpiece are improved.

Preferably, the top of objective table is along adjust the screw axle center and be provided with multilayer mounting hole group, mounting hole group includes the mounting hole of three equidistant setting, the support column passes through the mounting hole install in the objective table top, just the top of support column extends to the objective table is outside.

Furthermore, the installation hole groups are arranged in multiple layers, so that a user can independently select the installation position of the support column on the objective table according to the size of the workpiece, the practicability of the device is improved, and the use of the user is facilitated and the processing efficiency of the workpiece is improved.

Preferably, a rotating handle is fixed at the top of the rotating upright post.

Furthermore, the rotation of the rotating stand column can be facilitated through the arrangement of the rotating handle, so that the clamping operation of the workpiece is facilitated.

Preferably, a pair of positioning sleeve columns arranged at intervals is arranged at the top of the object stage, and the positioning plate on the workpiece is inserted between the pair of positioning sleeve columns.

In the machining process of a part, a structure for positioning a subsequent work, such as a positioning hole, a positioning plate, etc., is usually installed in a preceding machining step of the part, or a certain plate or hole on a workpiece is directly used as a positioning structure, so that the positioning accuracy of the workpiece in the subsequent machining is ensured. This application is through the setting of a pair of position sleeve post, overlaps the locating plate cover on the work piece between a pair of position sleeve post to can assemble work piece and device fast, improve work efficiency.

Preferably, a linear groove is formed in the top of the stage, the pair of positioning sleeve columns is mounted on a moving plate, and the moving plate is in sliding fit with the linear groove.

Furthermore, through the arrangement of the movable plate and the linear groove, when the movable plate moves in the linear groove, the distance between the pair of positioning sleeve columns and the rotating stand column can be adjusted, so that the pair of positioning sleeve columns can be adaptively adjusted according to the position of the workpiece upper positioning plate, the practicability and universality of the device are improved, and the machining efficiency of the workpiece is further improved.

Preferably, the axis of the linear groove penetrates through the axis of the adjusting screw hole on the same plane.

Furthermore, through the structural design of the linear groove, the position of the moving plate can be quickly adjusted, so that the moving plate can quickly reach the position corresponding to the required size, and the working efficiency is improved.

Preferably, the moving plate is screwed with a locking nut, and the locking nut is used for abutting against the top of the objective table to lock the moving plate.

Furthermore, through the arrangement of the locking nut, the movable plate can be locked on the objective table to perform auxiliary clamping on the workpiece when needed, and the practicability and reliability of the device are improved.

Preferably, the outer diameter of the ejection rod is equal to the diameter of the through hole, a trapezoidal sliding groove is formed in the side wall of the ejection block, a sliding ball is connected to the end portion of the ejection rod, the width D of a groove opening of the trapezoidal sliding groove is smaller than the width D of a groove bottom, the sliding ball is embedded in the trapezoidal sliding groove and is in sliding fit with the trapezoidal sliding groove, the diameter of the sliding ball is R, and D is smaller than R and smaller than D.

Further, through the structure cooperation of trapezoidal spout and sliding ball, when ejecting piece rotated, the sliding ball slided in trapezoidal spout, and the ejector pin was ejecting to the outside removal of support frame by ejecting piece, or the ejector pin was dragged to ejecting piece direction removal by ejecting piece under the traction of sliding ball to make things convenient for ejecting and withdrawing of ejector pin, reduce manual operation ejector pin's work, improve work efficiency.

Has the advantages that: the clamping device for thin-wall part machining realizes quick positioning and clamping and side wall supporting of a workpiece through the cooperation of the rotating stand column, the three ejection blocks and the three ejection rods, effectively improves clamping stability and reduces the occurrence of outer wall deformation. Through the setting of three support columns, thereby realize supporting the part stress of work piece release in the course of working, avoid the work piece to take place to warp, improve processingquality. The workpiece can be conveniently clamped by rotating the handle. Through the setting of position sleeve post, conveniently assemble the work piece on the device fast, improve work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic perspective view of a clamping device for thin-walled part machining in an embodiment of the present application;

FIG. 2 is a schematic view illustrating a positional relationship between the ejector pin and the supporting frame according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram illustrating a positional relationship between an ejector block and an ejector rod according to an embodiment of the present invention;

FIG. 4 is a schematic view of the connection between the trapezoidal chute and the ejector rod in the embodiment of the present application;

FIG. 5 is a schematic view of the connection between the trapezoidal sliding groove and the sliding ball in the embodiment of the present application;

fig. 6 is a schematic diagram of the position of the mounting hole group in the embodiment of the present application.

Reference numerals: 1. an object stage; 2. rotating the upright post; 3. ejecting a block; 4. a support frame; 5. ejecting the rod; 6. a support pillar; 7. rotating the handle; 8. positioning a sleeve column; 9. a workpiece; 10. a trapezoidal chute; 11. a sliding ball; 12. mounting holes; 13. a linear groove; 14. moving the plate; 15. and locking the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): the clamping device for machining thin-walled parts shown in fig. 1 comprises an object stage 1, and the object stage 1 can be any one of the prior art. The objective table 1 is provided with a through adjusting screw hole, the adjusting screw hole is internally provided with a rotating upright post 2 in a matching way, and the outer wall of the rotating upright post 2 is provided with a thread matched with the adjusting screw hole, which can be any one of the prior art, such as a screw rod. The top of the rotating upright post 2 is fixed with a rotating handle 7, the rotating handle 7 can be any one in the prior art and is used for conveniently rotating the rotating upright post 2, and therefore the clamping efficiency of the workpiece 9 is improved.

Referring to fig. 2 and 3, the rotating upright post 2 is fitted with a ring and is provided with three ejection blocks 3 arranged at equal intervals, the ejection blocks 3 are screwed with the rotating upright post 2 or integrally formed, the straight line distances from each point on the same horizontal plane to the circle center of the rotating upright post 2 on the plane on the side wall of the ejection blocks 3 are increased along the clockwise or anticlockwise arithmetic, and in the embodiment, along the clockwise direction, the straight line distances from each point on the outer wall of the ejection blocks 3 to the circle center of the rotating upright post 2 are increased along the arithmetic.

The object stage 1 is provided with a support frame 4, the support frame 4 can be any one of the prior art, in this embodiment, the support frame 4 is a hollow cylinder formed at the top of the object stage 1, the support frame is sleeved outside the rotating upright post 2, and the ejection block 3 is arranged between the support frame 4 and the rotating upright post 2.

The top of the supporting frame 4 is provided with three through holes corresponding to the positions of the ejection blocks 3 respectively, the through holes are internally provided with ejection rods 5 in a sliding manner, the ejection rods 5 can be any one of the prior art, such as metal rods or plastic rods, and the outer diameters of the ejection rods 5 are equal to the inner diameters of the through holes. The head end of ejector rod 5 supports with the lateral wall of ejecting piece 3 and leans on, and the tail end of ejector rod 5 extends to the support frame 4 outside, and when rotating rotation stand 2, ejecting piece 3 rotates along with it, thereby ejector rod 5 is under the structural influence of ejecting piece 3, thereby moves to the support frame 4 outside gradually and withstands work piece 9 inner wall, supports, fixes work piece 9. In a feasible implementation manner of the embodiment, the supporting frame 4 may also be a hollow cylinder with a lower portion provided with threads and installed in a threaded manner with the object stage 1, so that the advantage of the arrangement is that the position of the ejection rod 5 can be adjusted according to the position adaptability of the ejection block 3, and the use is convenient.

As a preferred embodiment of this embodiment, the outer diameter of the ejector rod 5 is equal to the diameter of the through hole, and this is provided to avoid the ejector rod 5 from deflecting in the through hole, thereby ensuring that the ejector rod 5 moves only linearly under the action of the ejector block 3. As shown in fig. 4 and 5, a trapezoidal sliding groove 10 is formed in the side wall of the ejector block 3, a sliding ball 11 is connected to the end of the ejector rod 5, the sliding ball 11 is connected to the end of the ejector rod 5 through a connecting rod, and the ejector rod 5, the connecting rod, and the sliding ball 11 are integrally formed. The notch width D of trapezoidal spout 10 is less than tank bottom width D, and sliding ball 11 inlays and locates in trapezoidal spout 10 and with trapezoidal spout 10 sliding fit, sliding ball 11 diameter be R, and D < R < D. The benefit that sets up like this is, structure cooperation through trapezoidal spout 10 and sliding ball 11, when ejecting 3 anticlockwise rotations, sliding ball 11 slides in trapezoidal spout 10, ejector pin 5 is by ejecting 3 outside removal to support frame 4 of ejecting piece, when ejecting 3 clockwise rotations, ejector pin 5 is dragged to 3 directions of ejecting piece and removes by ejecting 3 under the traction of sliding ball 11, thereby make things convenient for ejecting and withdrawing of ejector pin 5, reduce manual operation ejector pin 5's work, and the work efficiency is improved.

Referring back to fig. 1 and 2, three support columns 6 are provided at equal intervals around the axis of the adjustment screw hole on the top of the object stage 1, and the support columns 6 may be any one of the prior art, such as metal columns. The bottom of the workpiece 9 is supported on the top surfaces of the three support posts 6. Under the supporting action of the three supporting columns 6, the workpiece 9 is prevented from being directly located on the objective table 1 at the bottom, and when an external force is applied, the suspended part on the workpiece 9 is released by the stress, so that the deformation of the workpiece 9 is reduced when the force is applied, and the processing quality and the efficiency of the workpiece 9 are improved. Referring to fig. 6, in the present embodiment, a plurality of mounting hole sets are disposed on the top of the object stage 1 along the axis of the adjusting screw hole, each mounting hole set includes three mounting holes 12 disposed at equal intervals, the supporting column 6 is mounted on the top of the object stage 1 through the mounting holes 12, for example, the supporting column 6 is inserted into the mounting hole 12 for mounting, and the top of the supporting column 6 extends to the outside of the object stage 1. The advantage of setting up like this is, through the installation punch combination that the multilayer set up, makes the user independently select the mounted position of support column 6 on objective table 1 according to the size of work piece 9, improves the practicality of device to convenience of customers's use and improvement work piece 9's machining efficiency.

A pair of positioning sleeve columns 8 arranged at intervals is arranged at the top of the object stage 1, the positioning sleeve columns 8 can be any one of the prior art, and a positioning plate on the workpiece 9 is inserted between the pair of positioning sleeve columns 8. The positioning plate may be a structure mounted on the workpiece 9 for positioning or a plate-like structure itself on the workpiece 9. Through the setting of a pair of position sleeve post 8, can assemble work piece 9 with the device fast, improve work efficiency.

As a preferred embodiment of this embodiment, the top of the stage 1 is formed with a linear groove 13, the pair of positioning sleeve columns 8 are mounted on the moving plate 14, the bottom of the moving plate 14 is screwed with a slider, and the slider is fitted in the linear groove 13, so that the moving plate 14 is slidably fitted in the linear groove 13. The advantage that sets up like this is, through the setting of movable plate 14 and straight line groove 13, when movable plate 14 removed in straight line groove 13, can adjust the interval between a pair of position sleeve post 8 and the rotation stand 2 to carry out the adaptability adjustment to a pair of position sleeve post 8 according to the position of locating plate on the work piece 9, improve the practicality and the universality of device, and then improve the machining efficiency of work piece 9. In this embodiment, the axis of the linear groove 13 penetrates through the axis of the adjusting screw hole and is located on the same plane, so that the linear groove 13 occupies a small area on the object stage 1, and the position of the moving plate 14 can be quickly adjusted to reach the position corresponding to the required size, thereby improving the working efficiency. The movable plate 14 is in threaded connection with a locking nut 15, the locking nut 15 is rotated to enable the end portion of the locking nut 15 to abut against the objective table 1, so that the end portion of the locking nut 15 abuts against the top of the objective table 1, the movable plate 14 is locked, the movable plate 14 can be locked on the objective table 1 when needed to perform auxiliary clamping on the workpiece 9, and the practicability and reliability of the device are improved.

The working principle is as follows: the positioning plate on the workpiece 9 is inserted between the pair of positioning sleeve columns 8, the bottom of the workpiece 9 is supported on the three supporting columns 6, the rotating handle 7 is rotated to enable the ejection block 3 to rotate so as to eject the ejection rod 5, and the tail ends of the three ejection rods 5 move towards the inner wall of the workpiece 9 and abut against the inner wall of the workpiece 9 to clamp and fix the workpiece 9. After the machining is finished, the handle 7 is rotated in a reverse rotation mode, the ejection block 3 rotates in a reverse direction, the ejection rod 5 is released from the close contact state with the inner wall of the workpiece 9, and the workpiece 9 can be detached from clamping after being taken down.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (9)

1. The clamping device for machining the thin-wall parts is characterized by comprising an objective table (1), wherein a through adjusting screw hole is formed in the objective table (1), a rotating upright column (2) is installed in the adjusting screw hole in a matched mode, three ejection blocks (3) which are arranged at equal intervals are annularly arranged on the rotating upright column (2), and the straight line distance from each point on the same horizontal plane on the side wall of each ejection block (3) to the circle center of the rotating upright column (2) on the plane is increased along the clockwise direction or the anticlockwise direction in an equal difference mode; a support frame (4) is arranged on the objective table (1), and the ejection block (3) is arranged between the support frame (4) and the rotating upright post (2); the top of the supporting frame (4) is provided with three through holes corresponding to the positions of the ejection blocks (3), ejection rods (5) are arranged in the through holes in a sliding mode, the head ends of the ejection rods (5) are abutted to the side walls of the ejection blocks (3), and the tail ends of the ejection rods (5) extend to the outside of the supporting frame (4).

2. The clamping device for machining the thin-walled part as claimed in claim 1, wherein the top of the object stage (1) is provided with three support columns (6) arranged at equal intervals along the axis center of the adjusting screw hole, and the bottom of the workpiece (9) is supported on the top surfaces of the three support columns (6).

3. The clamping device for machining the thin-walled part according to claim 2, wherein a plurality of layers of mounting holes are formed in the top of the object stage (1) along the axis of the adjusting screw hole, each mounting hole comprises three mounting holes (12) which are arranged at equal intervals, the supporting column (6) is mounted on the top of the object stage (1) through the mounting holes (12), and the top of the supporting column (6) extends to the outside of the object stage (1).

4. The clamping device for machining the thin-walled part as claimed in claim 1, wherein a rotating handle (7) is fixed to the top of the rotating column (2).

5. The clamping device for machining the thin-walled part as claimed in claim 1, wherein a pair of locating sleeve columns (8) arranged at intervals are arranged at the top of the object stage (1), and a locating plate on a workpiece (9) is inserted between the pair of locating sleeve columns (8).

6. The clamping device for machining the thin-walled part as claimed in claim 5, wherein a linear groove (13) is formed in the top of the object stage (1), the pair of positioning sleeve columns (8) are mounted on a moving plate (14), and the moving plate (14) is in sliding fit with the linear groove (13).

7. The clamping device for machining the thin-walled part as claimed in claim 6, wherein the axis of the linear groove (13) penetrates through the axis of the adjusting screw hole on the same plane.

8. The clamping device for machining the thin-walled part as claimed in claim 6 or 7, wherein a locking nut (15) is screwed on the moving plate (14), and the locking nut (15) is used for abutting against the top of the object stage (1) to lock the moving plate (14).

9. The clamping device for machining the thin-walled part according to claim 1, wherein the outer diameter of the ejector rod (5) is equal to the diameter of the through hole, a trapezoidal sliding groove (10) is formed in the side wall of the ejector block (3), a sliding ball (11) is connected to the end of the ejector rod (5), the width D of a groove opening of the trapezoidal sliding groove (10) is smaller than the width D of a groove bottom, the sliding ball (11) is embedded in the trapezoidal sliding groove (10) and is in sliding fit with the trapezoidal sliding groove (10), the diameter of the sliding ball (11) is R, and D is smaller than R and smaller than D.

Images