CN216541952U

CN216541952U - Clamping and positioning tool for processing eccentric hole of flange

Info

Publication number: CN216541952U
Application number: CN202123428960.2U
Authority: CN
Inventors: 赵鹏森; 康飞飞; 李永辉; 马钢; 郭彬彬
Original assignee: Avic Forstar S&t Co ltd
Current assignee: Avic Forstar S&t Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-17
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a clamping and positioning tool capable of machining eccentric holes of flanges, which comprises a base, wherein a through hole is formed in the middle of the base, the base is connected with a clamping device and a limiting device, the base is provided with a first installation part, a second installation part and two limiting blocks, the two limiting blocks are arranged in a mirror image mode by taking the axis of the through hole as the center, the limiting device comprises a limiting assembly and a jacking assembly, the clamping device comprises two clamping blocks, the two clamping blocks are respectively connected with the two limiting blocks, each clamping block is provided with a sliding hole and a positioning hole, the sliding hole is connected to each limiting block through a sliding screw, and a limiting rod penetrates through the positioning hole. The utility model can install different flanges by arranging the limiting device and the clamping device, and because most eccentric flanges are eccentric in the front-back direction and not in the left-right direction, the two clamping blocks are symmetrically arranged for clamping, and the eccentric position of the flange can be controlled only by adjusting the limiting device.

Description

Clamping and positioning tool for processing eccentric hole of flange

Technical Field

The utility model belongs to the field of positioning tools, and particularly relates to a clamping and positioning tool for machining eccentric holes of flanges.

Background

At present, because connector and cable subassembly product kind are more and more, and miniaturization, lightweight, the product that integrates has become the development trend, so to the design of connector part product structure compacter and compacter, especially cable subassembly product tied in a bundle, the small-size of miniaturized product, in numerous product series, for making the product structure centralization, most product shell, flange part design into eccentric structure for radio frequency coaxial connector SMA series SBMA series product, for machining, the processing difficulty of this kind of eccentric part lies in:

1) the problems that the difficulty of part clamping and positioning is high, the clamping of a machined part is not correct, the center size of a shell part is deviated and eccentric, the size is out of tolerance and the like in the machining process are solved, when the center of the machined part is eccentric, the machining of the next procedure can be directly influenced, and even the quality performance of a product can be influenced;

2) the eccentric shell structure is characterized in that repeated clamping and positioning are frequently performed during machining, the machining size is poor in stability, and the machining period is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clamping and positioning tool for machining an eccentric hole of a flange, which can ensure that the central dimension of a part is not eccentric and can meet the technical requirement of drawing dimension in the process of turning the eccentric hole with the flange of a shell part; and secondly, the problem of size stability and consistency when parts are repeatedly positioned in the machining process is solved.

In order to solve the problems in the prior art, the utility model adopts the technical scheme that:

the clamping and positioning tool capable of machining the eccentric hole of the flange comprises a base, wherein a through hole is formed in the middle of the base, and the base is connected with a clamping device and a limiting device.

The base is equipped with first installation department, second installation department and two stoppers, two the stopper uses the axis of through-hole as central mirror image setting, the both sides of stopper are located respectively to first installation department and second installation department.

The limiting device comprises a limiting assembly and a jacking assembly, the limiting assembly comprises a first connecting block, a limiting rod, a first sliding block, a limiting groove and a first sliding groove, the first connecting block is connected to a first installation part, the first connecting block is provided with the first sliding groove of a directional through hole, the first sliding block is connected to the first sliding groove in a sliding mode, the first sliding block is symmetrically provided with two limiting grooves, each limiting groove is connected with one limiting rod respectively, the jacking assembly comprises a second connecting block, a second sliding block, a second spring and a jacking screw, the second connecting block is connected to a second installation part, the second connecting block is provided with the second sliding groove of the directional through hole, the second sliding block is connected to the second sliding groove in a sliding mode, and one end, far away from the first sliding block, of the second sliding block is connected to the second connecting block through the jacking screw.

The clamping device comprises two clamping blocks, the two clamping blocks are respectively connected to the two limiting blocks, each clamping block is provided with a sliding hole and a positioning hole, the sliding holes are connected to the limiting blocks through sliding screws, and the limiting rods penetrate through the positioning holes.

Through setting up stop device and clamping device, can install the flange of difference, because eccentric flange is the fore-and-aft direction off-centre mostly, and the left and right sides direction is not off-centre, consequently presss from both sides tight piece symmetry setting with two and presss from both sides tightly, only needs adjustment stop device can control flange eccentric position.

Furthermore, the limiting block is provided with a moving groove, the moving groove points to the axis of the through hole, one side, close to the base, of the clamping block is connected with a moving block, the moving block is arranged in the moving groove and slides along the moving groove, and the clamping block is controlled to clamp by the aid of the limiting groove and the moving block which move along the moving groove. The limiting block is provided with a limiting hole, the sliding screw penetrates through the sliding groove and is connected to the limiting hole, the sliding groove and the moving groove are arranged in parallel, when the moving block moves in the moving groove, the sliding groove slides along the sliding screw, and the limiting hole is arranged to limit the clamping block, so that the clamping block can only move along the moving groove and the sliding groove.

Further, spacing subassembly is still including promoting the axle, promote a threaded connection in first connecting block, the tip that promotes the axle rotates to be connected in first sliding block, promotes the axle through rotating, can adjust the position of first sliding block, and then adjusts the interval of two tight pieces of clamp, because two tight piece symmetries of clamp set up, can guarantee two tight piece synchronous motion of clamp, spacing subassembly still includes the locating lever, locating lever screw connection in first sliding block, the directional second sliding block of axis of locating lever, first spring and spacing piece have been cup jointed to the locating lever, the both ends of first spring butt respectively in spacing piece and first sliding block, through setting up the locating lever, can fix a position the valve to set up first spring and spacing piece on the locating lever, utilize the tensile force of spring, reduce the displacement error of locating lever.

Furthermore, one end, far away from the first connecting block, of the second connecting block is connected with a stop block, the jacking screw is in threaded connection with the stop block, the jacking screw is connected with a butterfly nut, the jacking screw is sleeved with a second spring, two ends of the second spring are respectively abutted to the stop block and a second sliding block, through the arrangement of the butterfly nut and the second spring, the moving error of the second sliding block can be reduced, and the first sliding groove and the second sliding groove are of a structure which is small in top and large in bottom, so that the first sliding block and the second sliding block are prevented from falling off.

The utility model has the beneficial effects that:

1. when the fixture is used, complex repeated work is not required, only the requirement on the size of a machined part is required, the proper rotating positioning rod and the jacking screw are appropriately removed to drive the clamping block and the second sliding block to move towards the center of the base, the machined part is pushed through the positioning rod, the center of the machined part is enabled to coincide with the center dimension of the fixture positioning reference, then the machined part is clamped through the second sliding block, the purpose of centering the machined part is achieved, in the machining process, the fixture is only adjusted once during primary machining debugging, repeated adjustment is not required for post continuous machining, and the machining stability and consistency are ensured.

2. When two press from both sides tight piece and press from both sides the work piece tightly, rotatory promotion axle promotes first connecting block and then drives two tight pieces of clamp and move to the base center, press from both sides tight piece butt work piece at two, because two tight piece symmetries set up of clamp, drive two tight pieces of clamp simultaneously like this, guaranteed the synchronism between two tight pieces of clamp.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial structural view of the base shown in FIG. 1;

FIG. 3 is a first schematic structural view of the limiting device in FIG. 1;

FIG. 4 is a second schematic structural view of the limiting device in FIG. 1;

FIG. 5 is a top view of the stop device of FIG. 1;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a first schematic structural diagram of the fixture block shown in FIG. 1;

fig. 8 is a second schematic structural diagram of the latch of fig. 1.

1-a base; 11-a limiting block; 12-a first mounting portion; 13-a second mounting portion; 14-a moving slot; 15-limiting holes; 2-a clamping device; 21-a clamping block; 22-a sliding hole; 23-positioning holes; 24-a moving block; 3-a limiting device; 31-a spacing assembly; 311-first connection block; 312-a pushing shaft; 313-a limiting rod; 314-first slider; 315-positioning rod; 316-a first spring; 317-limiting grooves; 318-a first sliding groove; 32-a jacking assembly; 321-a second connection block; 322-a stop block; 323-a second sliding groove; 324-a second slider; 325-a second spring; 326-tightening screws; 327-wing nut.

Detailed Description

The utility model will be further elucidated with reference to the drawings and reference numerals.

In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The following detailed description of embodiments of the utility model refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Example 1:

as shown in fig. 1-8, a clamping and positioning tool capable of machining eccentric holes of flanges comprises a base 1, wherein a through hole is formed in the middle of the base 1, and the base 1 is connected with a clamping device 2 and a limiting device 3.

Base 1 is equipped with first installation department 12, second installation department 13 and two stopper 11, two stopper 11 uses the axis of through-hole as the setting of central mirror image, stopper 11's both sides are located respectively to first installation department 12 and second installation department 13.

The limiting device 3 comprises a limiting component 31 and a jacking component 32, the limiting component 31 comprises a first connecting block 311, a limiting rod 313, a first sliding block 314, a limiting groove 317 and a first sliding groove 318, the first connecting block 311 is connected to the first mounting portion 12, the first connecting block 311 is provided with a first sliding groove 318 pointing to the through hole, the first sliding block 314 is slidably connected to a first sliding groove 318, the first sliding block 314 is symmetrically provided with two limiting grooves 317, each limiting groove 317 is respectively connected with a limiting rod 313, the tightening assembly 32 comprises a second connecting block 321, a second sliding block 324, a second spring 325 and a tightening screw 326, the second connecting block 321 is connected to the second mounting portion 13, the second connecting block 321 is provided with a second sliding groove 323 directed to the through-hole, the second sliding block 324 is slidably connected to the second sliding groove 323, and an end of the second sliding block 324 away from the first sliding block 314 is connected to the second connecting block 321 through a tightening screw 326.

The clamping device 2 comprises two clamping blocks 21, the two clamping blocks 21 are respectively connected to the two limiting blocks 11, each clamping block 21 is provided with a sliding hole 22 and a positioning hole 23, the sliding hole 22 is connected to the limiting block 11 through a sliding screw, and the limiting rod 313 penetrates through the positioning hole 23.

Through setting up stop device 3 and clamping device 2, can install the flange of difference, because eccentric flange is most for the fore-and-aft direction (the fore-and-aft here is the moving direction of first sliding block) off-centre, the left and right sides direction is not off-centre, consequently presss from both sides two symmetrical settings of tight piece 21 and presss from both sides tightly, only needs adjustment stop device 3 can control flange eccentric position.

Example 2:

The limiting block 11 is provided with a moving groove 14, the moving groove 14 points to the axis of the through hole, one side of the clamping block 21 close to the base 1 is connected with a moving block 24, and the moving block 24 is arranged in the moving groove 14 and slides along the moving groove 14.

By providing the stopper groove 317 and the moving block 24, the moving block 24 moves along the moving groove 14, and the clamping block 21 is controlled to be clamped.

The limiting block 11 is provided with a limiting hole 15, and the sliding screw penetrates through the sliding groove and is connected to the limiting hole 15.

The sliding grooves are arranged in parallel with the moving groove 14, and slide along the sliding screws when the moving block 24 moves in the moving groove 14.

The clamping block 21 is limited by the limiting hole 15, so that the clamping block 21 can only move along the moving groove 14 and the sliding groove.

The position limiting assembly 31 further comprises a pushing shaft 312, the pushing shaft 312 is threadedly connected to the first connecting block 311, and the end of the pushing shaft 312 is rotatably connected to the first sliding block 314.

Through rotating the promotion axle 312, can adjust the position of first sliding block 314, and then adjust the interval of two clamp tight piece 21, because two clamp tight piece 21 symmetry settings, can guarantee two clamp tight piece 21 synchronous movement.

The position limiting assembly 31 further comprises a positioning rod 315, the positioning rod 315 is connected to the first sliding block 314 through a screw, and the axis of the positioning rod 315 points to the second sliding block 324.

The positioning rod 315 is sleeved with a first spring 316 and a limiting piece (not shown), and two ends of the first spring 316 are respectively abutted against the limiting piece and the first sliding block 314.

Through setting up locating lever 315, can fix a position the valve to set up first spring 316 and spacing piece on locating lever 315, utilize the tensile force of spring, reduce locating lever 315's removal error.

One end of the second connecting block 321, which is far away from the first connecting block 311, is connected to a stop 322, and the tightening screw 326 is screwed to the stop 322.

The tightening screw 326 is connected with a wing nut 327.

The tightening screw 326 is sleeved with a second spring 325, and two ends of the second spring 325 are respectively abutted to the stopper 322 and the second sliding block 324.

By providing the wing nut 327 and the second spring 325, the movement error of the second slide block 324 can be reduced.

The first slide groove 318 and the second slide groove 323 have a structure with a small top and a large bottom, and prevent the first slide block 314 and the second slide block 324 from falling off.

The specific working principle is as follows:

when the flange clamping device is used, a flange is placed between the two clamping blocks 21, then the pushing shaft 312 is rotated, the pushing shaft 312 drives the first sliding block 314 to move back and forth (the back and forth refers to being close to or far away from the second connecting block 321), because the limiting rod 313 penetrates through the positioning hole 23, the clamping blocks 21 cannot move back and forth and only can move left and right, the limiting rod 313 only can move left and right, and when the two limiting rods 313 are close to each other, the two clamping blocks 21 are driven to be close to each other, and the flange is clamped.

Then, the positioning rod 315 is rotated, the eccentric position of the flange is determined by the positioning rod 315, and after the positioning rod 315 is adjusted, the tightening screw 326 is rotated to clamp the flange by the second sliding block 324, thereby completing the position limitation.

The utility model is not limited to the above alternative embodiments, and any other various forms of products can be obtained by anyone in the light of the present invention, but any changes in shape or structure thereof, which fall within the scope of the present invention as defined in the claims, fall within the scope of the present invention.

Claims

1. The utility model provides a clamping location frock of processing flange eccentric orfice, includes base (1), its characterized in that: a through hole is formed in the middle of the base (1), and the base (1) is connected with a clamping device (2) and a limiting device (3);

the base (1) is provided with a first mounting part (12), a second mounting part (13) and two limiting blocks (11), the two limiting blocks (11) are arranged in a mirror image mode by taking the axis of the through hole as the center, and the first mounting part (12) and the second mounting part (13) are respectively arranged on two sides of each limiting block (11);

the limiting device (3) comprises a limiting component (31) and a tightening component (32), the limiting component (31) comprises a first connecting block (311), a limiting rod (313), a first sliding block (314), a limiting groove (317) and a first sliding groove (318), the first connecting block (311) is connected to the first installation part (12), the first connecting block (311) is provided with the first sliding groove (318) pointing to the through hole, the first sliding block (314) is connected to the first sliding groove (318) in a sliding manner, the first sliding block (314) is symmetrically provided with two limiting grooves (317), each limiting groove (317) is connected with one limiting rod (313) respectively, the tightening component (32) comprises a second connecting block (321), a second sliding block (324), a second spring (325) and a tightening screw (326), the second connecting block (321) is connected to the second installation part (13), the second connecting block (321) is provided with a second sliding groove (323) pointing to the through hole, the second sliding block (324) is connected to the second sliding groove (323) in a sliding mode, and one end, far away from the first sliding block (314), of the second sliding block (324) is connected to the second connecting block (321) through a tightening screw (326);

the clamping device (2) comprises two clamping blocks (21), the two clamping blocks (21) are respectively connected to the two limiting blocks (11), the clamping blocks (21) are provided with sliding holes (22) and positioning holes (23), the sliding holes (22) are connected to the limiting blocks (11) through sliding screws, and the limiting rods (313) penetrate through the positioning holes (23).

2. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 1, wherein the clamping and positioning tool comprises: the limiting block (11) is provided with a moving groove (14), the moving groove (14) points to the axis of the through hole, one side, close to the base (1), of the clamping block (21) is connected with a moving block (24), and the moving block (24) is arranged in the moving groove (14) and slides along the moving groove (14).

3. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 2, characterized in that: the limiting block (11) is provided with a limiting hole (15), and the sliding screw penetrates through the sliding groove and is connected to the limiting hole (15).

4. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 1, wherein the clamping and positioning tool comprises: the limiting assembly (31) further comprises a pushing shaft (312), the pushing shaft (312) is in threaded connection with the first connecting block (311), and the end of the pushing shaft (312) is rotatably connected with the first sliding block (314).

5. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 4, wherein the clamping and positioning tool comprises: the limiting assembly (31) further comprises a positioning rod (315), the positioning rod (315) is connected to the first sliding block (314) through a screw, and the axis of the positioning rod (315) points to the second sliding block (324).

6. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 5, wherein the clamping and positioning tool comprises: the positioning rod (315) is sleeved with a first spring (316) and a limiting piece, and two ends of the first spring (316) are respectively abutted to the limiting piece and the first sliding block (314).

7. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 5, wherein the clamping and positioning tool comprises: one end, far away from the first connecting block (311), of the second connecting block (321) is connected with a stop block (322), and the jacking screw (326) is in threaded connection with the stop block (322).

8. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 7, wherein the clamping and positioning tool comprises: the jacking screw (326) is connected with a butterfly nut (327).

9. The clamping and positioning tool for machining the eccentric hole of the flange according to claim 8, wherein the clamping and positioning tool comprises: the tightening screw (326) is sleeved with a second spring (325), and two ends of the second spring (325) are respectively abutted to the stop block (322) and the second sliding block (324).