CN219212329U

CN219212329U - Special fixture for multi-interference of thin-wall cavity workpiece

Info

Publication number: CN219212329U
Application number: CN202223491511.7U
Authority: CN
Inventors: 郑浩翔; 姜少文; 胡洪金
Original assignee: Tianjin Hangyu Jiarui Co ltd
Current assignee: Tianjin Hangyu Jiarui Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-20
Anticipated expiration: 2032-12-27

Abstract

The utility model provides a special fixture of thin wall cavity work piece multi-interference, includes base and presss from both sides tight work piece subassembly, press from both sides tight work piece subassembly including depression bar, fixed pin, screw rod, spliced pole, chassis, screw thread press the cover, well axle sleeve, connecting pin stick, axis, interior movable joint and outer movable joint, chassis and base fixed connection, the base on be equipped with the axis in chassis center department, axis top threaded connection have screw thread press the cover, be equipped with the connecting pin stick of several in the middle of the axis, the connecting pin stick on respectively articulated have interior movable joint, base both sides respectively articulated have the depression bar, two the depression bar outside respectively be equipped with the screw hole, screw thread connection screw rod in the screw hole. The clamping device is more convenient to clamp and is capable of directly tightening the bolt and the pressing sleeve to compress; the stress of the part is more uniform, the deformation problem caused by different stress clamping positions of the part in the process of working is solved, and the deformation is reduced; the alignment is more convenient, the cost is reduced, and the utilization rate of the machine tool is improved.

Description

Special fixture for multi-interference of thin-wall cavity workpiece

Technical Field

The utility model relates to the technical field of clamps, in particular to a special clamp for multi-interference of thin-wall cavity workpieces.

Background

The current thin-wall cavity workpiece machining tool is mostly simpler, and when in operation, a workpiece is pressed on a workbench through a simple pressing plate, the workpiece position is exchanged for multiple times to finish one or more working procedures, and multiple sets of tools are required to be machined to machine the parts, so that the technical requirements on first-line operation staff are increased, and the secondary consumption cost of machining is increased. On the other hand, operators need to re-align the parts every time, and pay attention to whether interference exists in the process of machining the thin-wall parts and the deformation problem caused by different stress clamping positions of the parts in the process of machining for many times, so that the machining efficiency is low.

The utility model provides a thin wall cavity dysmorphism class part adds clamping apparatus of present patent application number 202121910725.6, includes base, riser, a plurality of locating component and a plurality of movable support subassembly, needs to support the quantity and the position of swivel nut according to the structural adjustment of part during this anchor clamps processing, can not realize the quick clamping and the location of part, and the processing degree of difficulty is bigger, inefficiency.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides a special fixture for multi-interference of thin-wall cavity workpieces

The utility model adopts the following technical scheme to realize the aim:

the utility model provides a special fixture of thin wall cavity work piece multi-interference, includes base and presss from both sides tight work piece subassembly, press from both sides tight work piece subassembly including depression bar, fixed pin, screw rod, spliced pole, chassis, screw thread press the cover, well axle sleeve, connecting pin stick, axis, interior movable joint and outer movable joint, chassis and base fixed connection, the base on be equipped with the axis in chassis center department, axis top threaded connection have screw thread press the cover, be equipped with the connecting pin stick of several in the middle of the axis, the connecting pin stick on respectively articulated have interior movable joint, base both sides respectively articulated have the depression bar, two the depression bar outside respectively be equipped with the screw hole, screw thread connection screw rod in the screw hole.

Four fixed connecting columns are arranged between the chassis and the base, and four positioning ports for positioning the outer movable joints are arranged on the chassis.

And a resilient middle shaft sleeve is sleeved between the middle shaft upper thread pressing sleeve and the connecting pin rod.

The four inner joints are hinged with outer joints respectively, and the outer joints are positioned through positioning openings on the chassis.

The compression bar is hinged with the base through a fixing pin.

The beneficial effects of the utility model are as follows:

compared with the prior art, the clamping device is more convenient to clamp and is capable of performing compression operation directly by screwing the bolt and the pressing sleeve; the stress of the part is more uniform, the problem of deformation caused by different stress clamping positions of the part during processing is solved, and the deformation is reduced; the alignment is more convenient, the cost is reduced, and the utilization rate of the machine tool is improved.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a top view of the present utility model;

FIG. 3 is a perspective view of the present utility model;

FIG. 4 is an effect diagram of the clamping of the parts according to the present utility model;

wherein: 1-a base; 2-a compression bar; 3-fixing pins; 4-a screw; a 5-connecting column; 6, a chassis; 7-thread pressing sleeve; 8-a middle shaft sleeve; 9-connecting pins; 10-a central shaft; 11-inner joint; 12-outer joint.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in figures 1-4, the special fixture of thin wall cavity work piece multi-interference comprises a base 1 and a clamping work piece component, wherein the clamping work piece component comprises a pressing rod 2, a fixing pin 3, a screw 4, a connecting column 5, a base plate 6, a threaded pressing sleeve 7, a middle shaft sleeve 8, a connecting pin 9, a middle shaft 10, an inner movable joint 11 and an outer movable joint 12, the base plate 6 is fixedly connected with the base 1, the base 1 is provided with the middle shaft 10 at the center of the base plate 6, the top end of the middle shaft 10 is in threaded connection with the threaded pressing sleeve 7, a plurality of connecting pin 9 are arranged in the middle of the middle shaft 10, the connecting pin 9 is respectively hinged with the inner movable joint 11, two sides of the base 1 are respectively hinged with the pressing rods 2, threaded holes are respectively formed in the outer sides of the pressing rods 2, and the threaded holes are in threaded connection with the screw 4.

Four fixed connecting columns 5 are arranged between the chassis 6 and the base 1, and four positioning openings for positioning the outer movable joints 12 are arranged on the chassis 6.

An elastic middle shaft sleeve 8 is sleeved between the threaded press sleeve 7 on the middle shaft 10 and the connecting pin rod 9.

The four inner joints 11 are provided, the inner joints 11 are respectively hinged with outer joints 12, and the outer joints 12 are positioned through positioning openings on the chassis 6.

The compression bar 2 is hinged with the base 1 through a fixing pin 3.

45# steel may be used as the clamp material.

The operation method comprises the following steps:

the first step is to clamp the parts on the tool:

and a, vertically placing the part into the tool, then screwing down the screw 4, connecting the compression bar 2 and the base 1 through the fixing pin 3 to form a lever mechanism, and under the driving of the screw 4, pressing two sides of the part by the lever mechanism to temporarily position the part.

b, screwing the screw thread pressing sleeve 7 downwards by using a spanner, extruding the screw thread pressing sleeve 7 to drive the middle shaft sleeve 8 to move downwards, pushing the outer movable joint 12 to open downwards by the inner movable joint 11, supporting and pressing the inner wall of the part by the outer movable joint 12, and adjusting the stress of the part by adjusting the tightness of the screw thread pressing sleeve 7.

Secondly, placing the tool on a machine tool: parts are aligned under the machine tool, lifting bolts for lifting two sides of the bottom plate 1 through the mechanical arm are placed on a machine tool workbench, the positioning groove of the base 1 coincides with the machine tool workbench, at the moment, the X axis is determined that the parts are also aligned, and the parts can be aligned only by adjusting the Y axis.

And step three, taking down parts: when the part is taken down, only the threaded pressing sleeve 7 is required to be loosened, the middle shaft sleeve 8 naturally bounces, the movable joint 12 is loosened, the screw rod 4 is loosened again, the pressing rod 2 can be loosened, and the part is taken down.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.

Claims

1. The utility model provides a special fixture that thin wall cavity work piece was many interfere, its characterized in that includes base (1) and presss from both sides tight work piece subassembly, press from both sides tight work piece subassembly including depression bar (2), fixed pin (3), screw rod (4), spliced pole (5), chassis (6), screw thread press sleeve (7), well axle sleeve (8), connecting pin stick (9), axis (10), interior movable joint (11) and outer movable joint (12), base (6) and base (1) fixed connection, base (1) on be equipped with axis (10) in chassis (6) center department, axis (10) top threaded connection have screw thread press sleeve (7), be equipped with several connecting pin stick (9) in the middle of axis (10), connecting pin stick (9) on respectively articulated have interior movable joint (11), base (1) both sides respectively articulated have depression bar (2), two depression bar (2) outside respectively be equipped with the screw hole, screw thread connects screw rod (4) in the screw hole.

2. The special fixture of thin wall cavity work piece multi interference according to claim 1, characterized in that, four fixed connecting columns (5) are arranged between the chassis (6) and the base (1), and four positioning openings for positioning the outer movable joints (12) are arranged on the chassis (6).

3. The special fixture for multi-interference of the thin-wall cavity workpiece according to claim 1, wherein a resilient middle shaft sleeve (8) is sleeved between the threaded press sleeve (7) and the connecting pin rod (9) on the middle shaft (10).

4. The special fixture of thin wall cavity work piece multi interference according to claim 2, characterized in that said inner joints (11) are four, said inner joints (11) are hinged with outer joints (12) respectively, said outer joints (12) are positioned through positioning openings on the chassis (6).

5. The special fixture of thin wall cavity work piece multi interference according to claim 1, characterized in that the compression bar (2) is hinged with the base (1) through a fixed pin (3).