Quick positioning tool for preventing radial deformation of axial thin-walled workpiece during machining

Abstract

The utility model discloses a quick positioning tool for preventing radial deformation during machining of an axial thin-walled workpiece, which belongs to the technical field of machining of thin-walled workpieces and comprises a chuck body, a plurality of sliding chutes are uniformly distributed on the chuck body along the circumferential direction and are arranged along the radius direction of the chuck body, and clamping components for clamping workpieces are arranged in the sliding chutes. The clamping component comprises a positioning clamping jaw, a tool clamp and a connecting bolt, the tool clamp is connected with the positioning clamping jaw through the connecting bolt, and an adjusting component used for adjusting the positioning clamping jaw is arranged in the chuck body. According to the clamping tool, the thin-wall part can be rapidly positioned and clamped by combining the clamping component with the adjusting component, and the problems that an existing clamping tool for machining the axial thin-wall part is prone to causing non-uniform deformation of the part due to the stress relation, and the machined part cannot be rapidly positioned and clamped are effectively solved; the machining efficiency is low; and meanwhile, the percent of pass of machined parts is easily reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of thin-walled parts processing, in particular to a quick positioning tool for preventing radial deformation during axial thin-walled parts processing. Background Art

[0002] For a long time, controlling the deformation of parts during machining has always been a difficult point in machining. For axially thin-walled parts, the difficulty increases exponentially. The common practice of preventing radial deformation during machining of axially thin-walled parts is to directly press the workbench with a pressure plate or perform machining on the clamping tooling plane. However, the existing machining methods have the following shortcomings: 1. Each part needs to be individually calibrated before machining, resulting in low machining efficiency; 2. The machined parts cannot be quickly positioned and clamped, and the deformation of the parts will be uneven due to the force relationship between the clamped position and the non-clamped position, resulting in a large ellipse in the parts, which can easily reduce the qualified rate of the machined parts.

[0003] Chinese patent CN213002987U discloses a grooving tool for processing axial grooves on the outer wall of a thin-walled cylindrical part, including a positioning assembly and a cutting assembly; the positioning assembly includes a three-jaw chuck, a dividing plate, a dividing head, a positioning frame and a positioning pin; the two ends of the cylindrical part to be processed are supported and positioned by the three-jaw chuck, and the rear end of one of the three-jaw chucks is connected to the dividing head through the dividing plate; the positioning frame is fixed to the outer wall of the cylindrical part to be processed by the positioning pin; the cutting assembly includes a motor-driven cutting knife, a positioning plate and a positioning block arranged below the cutting knife; the cutting assembly aligns the positioning plate and the positioning block with the positioning frame of the positioning assembly, so that the cutting knife completes the processing of a triangular groove; the positioning frame is fixed to different dividing holes of the dividing plate, so that the cutting knife completes the processing of the remaining triangular grooves. Chinese patent CN216264682U discloses a positioning fixture for CNC-machined precision parts, comprising a workbench, the top of which is fixedly connected to a cylinder, the inner wall of which is evenly provided with six mounting holes, a fixed block fixedly connected within the mounting holes, one end of which is provided with a sliding hole, a sliding rod slidably connected within the sliding hole, and one end of the sliding rod fixedly connected to an arc-shaped plate. Existing clamping fixtures for machining axial thin-walled parts are prone to uneven deformation of the parts due to the force relationship, and cannot quickly position and clamp the machined parts, resulting in low machining efficiency and a low pass rate for the machined parts. Therefore, it is necessary to provide a rapid positioning fixture that can meet the requirements of rapid positioning and clamping of the machined parts while ensuring uniform force deformation, thereby preventing radial deformation during machining of axial thin-walled parts. Utility Model Content

[0004] The utility model discloses a quick positioning tool for preventing radial deformation of axial thin-walled parts during machining.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme, a quick positioning tool for preventing radial deformation of axial thin-walled parts during machining, including chuck body, the chuck body is evenly distributed with a plurality of along the chuck body radius direction setting's sliding slot along the circumferential distribution, be equipped with the clamping member for clamping work piece in the sliding slot, the clamping member includes positioning dog, tool holder and connecting bolt, the tool holder is connected with positioning dog through connecting bolt, be equipped with the adjusting member for adjusting positioning dog in the chuck body, the adjusting member includes adjusting wrench, drive gear, large gear plate and plane threaded disc, the drive gear is covered and is set on adjusting wrench, and adjusting wrench is engaged with large gear plate through drive gear, the top of large gear plate is equipped with the plane thread that is matched with plane threaded disc, the bottom of positioning dog is equipped with the plane thread that is matched with plane threaded disc, make each positioning dog and large gear plate are connected through plane threaded disc cooperation between.

[0006] Further, the chuck body is provided with three clamping members, and the axes of the clamping members intersect on the chuck body, and a clamp core for controlling the tool holder can be further provided at the intersection.

[0007] Further, the clamp core includes a control switch and a plurality of small lead screw motors, the small lead screw motors are fixedly arranged in the clamp core through a mounting plate, and output ends of the small lead screw motors are fixedly connected with the tool holder.

[0008] Further, the tool holder is composed of a clamp seat and a clamp block, and has an arc shape, and the clamp block is connected with the inner side of the clamp seat to form a placement groove.

[0009] Further, the placement groove is matched with a clamping surface of the machined workpiece, so that the three-part placement groove forms a ring-shaped placement groove when used in combination.

[0010] Further, the height of the tool holder is higher than the height of the positioning dog, and the radius of the tool holder is greater than the radius of the positioning dog.

[0011] Further, the clamp block can be connected with the inner side of the clamp seat through a sliding adjustment member to form the placement groove, wherein the sliding adjustment member includes a connecting block, a limiting groove, and a limiting block, that is, the clamp block is slidably connected with the limiting groove through the connecting block, and the inner wall of the clamp block is connected with the clamp core through the limiting block.

[0012] The utility model provides a prevent axial thin -walled spare processing radial deformation's quick positioning tooling has the following beneficial effects:

[0013] The present application can meet the adjustment of the tooling clamp tension according to the machining part demand through the clamping member combined with the adjusting member, prevent the radial deformation of the thin -walled part, realize the quick positioning and clamping of the machining part, and the utility model operation is convenient, the practicality is strong, effectively solved the clamping tooling for the machining of the existing axial thin -walled spare due to stress relation easy to make the deformation of the part uneven, and can not be quick positioning and clamping to the machining part, make the machining efficiency low while easily reducing the machining part qualified rate problem. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic diagram of the utility model prevents axial thin -walled spare processing radial deformation's quick positioning tooling.

[0015] Figure 2 It is the overhead structure schematic diagram of the utility model prevents axial thin -walled spare processing radial deformation's quick positioning tooling.

[0016] Figure 3 It is the overhead structure schematic diagram of the utility model prevents axial thin -walled spare processing radial deformation's quick positioning tooling clamp core.

[0017] Figure 4 It is the clamp core structure schematic diagram of the utility model prevents axial thin -walled spare processing radial deformation's quick positioning tooling.

[0018] Figure 5 It is the sliding adjusting piece structure schematic diagram of the utility model prevents axial thin -walled spare processing radial deformation's quick positioning tooling.

[0019] In the drawing, 1, chuck body;2, positioning dog;3, tooling clamp;31, clamp seat;32, clamp block;4, connecting bolt;5, adjusting wrench;6, driving gear;7, large gear disc;8, flat thread disc;9, clamp core;10, control switch;11, small -size screw motor;12, placing groove;13, connecting block;14, limit groove;15, limit block. DETAILED DESCRIPTION

[0020] The technical scheme of the utility model is clearly and completely described below in combination with the specific embodiment of the utility model. The described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0021] Embodiment 1

[0022] As Figures 1-2 The utility model provides a prevent axial thin -walled spare quick positioning frock of radial deformation when processing, including chuck body 1, chuck body 1 is hollow structure of cylinder, chuck body 1 is evenly distributed and is provided with a plurality of along chuck body 1 radius direction setting's sliding slot along the circumferential distribution, be equipped with the clamping member for clamping work piece in the sliding slot, the clamping member includes positioning dog 2, frock clamp 3 and connecting bolt 4, frock clamp 3 is connected with positioning dog 2 through connecting bolt 4, the height of frock clamp 3 is higher than the height of positioning dog 2, the radius of frock clamp 3 is greater than the radius of positioning dog 2, the height of chuck body 1 is higher than the height of frock clamp 3, and the radius of chuck body 1 is less than the radius of positioning dog 2, the height of frock clamp 3 is higher than the height of frock clamp 3, and the radius of chuck body 1 is less than the radius of positioning dog 2, the frock clamp 3 is composed of clamp seat 31 and clamp block 32, and it is similar arc shape, the inside connection of clamp block 32 and clamp seat 31 forms the placement slot 12, the placement slot 12 is adapted to the clamping surface of the work piece being processed, so that the three parts placement slot 12 form annular placement slot 12 when being used in combination, so that it can adapt to different diameter and axial height parts, realize the quick positioning of the processing part and the outside circle covering type radial limit, improve its practicality.

[0023] The chuck body 1 is equipped with an adjusting member for adjusting the positioning dog 2, that is, the frock clamp 3 is moved by adjusting the positioning dog 2, so that the position of the frock clamp 3 is adjusted, so that the frock clamp 3 can clamp work pieces of different sizes, the adjusting member includes an adjusting wrench 5, a driving gear 6, a large gear plate 7, and a flat threaded disc 8, the driving gear 6 is sleeved on the adjusting wrench 5, and the adjusting wrench 5 is engaged with the large gear plate 7 through the driving gear 6, the top of the large gear plate 7 is provided with a flat thread matched with the flat threaded disc 8, and the bottom of the positioning dog 2 is provided with a flat thread matched with the flat threaded disc 8, so that each positioning dog 2 is connected with the large gear plate 7 through the flat threaded disc 8, the adjusting wrench 5 is rotated according to the size of the processing part, the rotating force is transmitted to the large gear plate 7 through the driving gear 6, so that the large gear plate 7 is rotated, and the flat threaded disc 8 is driven to transmit the force to the positioning dog 2 while the large gear plate 7 is rotated, so that the frock clamp 3 is quickly positioned and clamped on the processing part, the force is along the axial direction of the thin-walled part, and the size of the tensile force in this direction does not cause the radial deformation of the thin-walled part through test comparison, so that the frock clamp 3 can be adjusted according to the processing part demand, and the deformation amount after being stressed is uniform.

[0024] Embodiment 2

[0025] On the basis of the above embodiment, in order to improve the clamping effect of the frock clamp 3 on the processing part, the processing part is clamped and limited, so that the processing part does not move or swing during processing, as Figures 3-5As described, the chuck body 1 described in the present application is provided with three clamping members, and each clamping member can also be provided with a clamp core 9 for controlling the tooling fixture 3 at the intersection of the axes on the chuck body 1, the clamp core 9 includes a control switch 10 and a plurality of small synchronous screw motors 11, the small screw motors 11 are fixed in the clamp core 9 through a mounting plate, and the output end of the small screw motor 11 is fixedly connected to the tooling fixture 3; the clamp block 32 can also be connected to the inner side of the clamp seat 31 through a sliding adjustment member to form a placement groove 12, wherein the sliding adjustment member includes a connecting block 13, a limit groove 14 and a limit block 15, that is, The clamp block 32 is slidingly connected to the limit groove 14 through the connecting block 13, and the inner wall of the clamp block 32 is connected to the clamp core 9 through the limit block 15, that is, the inner wall of the clamp block 32 is connected to the screw of the small screw motor 11 through the limit block 15. In this embodiment, the small screw motor 11 is driven to rotate by the control switch 10, thereby acting on the limit block 15 to drive the clamp block 32 to move toward the clamp seat 31. The clamp block 32 expands outward under the action of the screw, which can realize rapid positioning and clamping of the processed parts, and the radial tension can be adjusted by rotating the screw to prevent radial deformation of thin-walled parts.

[0026] Before use, the present application pre-adjusts the clamping member according to the size of the thin-walled part to be processed, and then places the processed thin-walled part in the annular placement groove 12, and then adjusts the rotary adjustment wrench 5 to transmit the rotational force to the large toothed disc 7 through the driving gear 6, thereby driving the large toothed disc 7 to rotate. While the large toothed disc 7 rotates, it drives the flat threaded disc 8 to transmit the force to the positioning claw 2, thereby driving the tooling fixture 3 to quickly position and clamp the processed part; thereby effectively solving the problem that the existing clamping fixture for processing axial thin-walled parts is prone to uneven deformation of the parts due to the force relationship, and cannot quickly position and clamp the processed parts, resulting in low processing efficiency and a low pass rate for processed parts.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

[0028] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature or implementation described herein. The specification can include implicit combinations of explicitly mentioned features and / or implicit combinations of implicitly mentioned features. Such combinations are also expressly included within the scope of the specification and an embodiment.

Claims

1. A rapid positioning tool for preventing radial deformation during machining of axial thin-walled parts, characterized by: The invention comprises a chuck body (1), wherein a plurality of slide grooves are evenly distributed along the circumference of the chuck body (1) and are arranged along the radial direction of the chuck body (1), wherein a clamping member for clamping a workpiece is arranged in the slide groove, wherein the clamping member comprises a positioning jaw (2), a fixture (3) and a connecting bolt (4), wherein the fixture (3) is connected to the positioning jaw (2) via the connecting bolt (4), and wherein an adjusting member for adjusting the positioning jaw (2) is arranged in the chuck body (1), wherein the adjusting member comprises an adjusting wrench (5). , a driving gear (6), a large toothed disc (7) and a flat threaded disc (8), wherein the driving gear (6) is sleeved on the adjusting wrench (5), and the adjusting wrench (5) is meshed with the large toothed disc (7) through the driving gear (6), the top of the large toothed disc (7) is provided with a flat thread matching the flat threaded disc (8), and the bottom of the positioning claw (2) is provided with a flat thread matching the flat threaded disc (8), so that each positioning claw (2) and the large toothed disc (7) are connected in a matching manner through the flat threaded disc (8).

2. The rapid positioning tool for preventing radial deformation during machining of axial thin-walled parts according to claim 1, characterized in that: The chuck body (1) is provided with three clamping members, and a clamp core (9) for controlling the tooling fixture (3) can also be provided at the intersection of the axes of the clamping members on the chuck body (1).

3. The rapid positioning tool for preventing radial deformation during machining of axially thin-walled parts according to claim 2, characterized in that: The clamp core (9) comprises a control switch (10) and a plurality of small screw motors (11). The small screw motors (11) are fixedly arranged in the clamp core (9) via a mounting plate, and the output ends of the small screw motors (11) are fixedly connected to the fixture (3).

4. The rapid positioning tool for preventing radial deformation during machining of axially thin-walled parts according to claim 1, characterized in that: The fixture (3) is composed of a fixture seat (31) and a fixture block (32) and is in an arc shape. The fixture block (32) is connected to the inner side of the fixture seat (31) to form a placement groove (12).

5. The rapid positioning tool for preventing radial deformation during machining of axial thin-walled parts according to claim 4, characterized in that: The placement groove (12) is adapted to the clamping surface of the workpiece being processed, so that the three parts of the placement groove (12) are combined to form an annular placement groove (12).

6. The rapid positioning tool for preventing radial deformation during machining of axially thin-walled parts according to claim 1, characterized in that: The height of the fixture (3) is higher than the height of the positioning claw (2), and the radius of the fixture (3) is greater than the radius of the positioning claw (2).

7. The rapid positioning tool for preventing radial deformation during machining of axially thin-walled parts according to claim 4, characterized in that: The clamp block (32) can also be connected to the inner side of the clamp seat (31) through a sliding adjustment member to form a placement groove (12), wherein the sliding adjustment member includes a connecting block (13), a limiting groove (14) and a limiting block (15), that is, the clamp block (32) is slidably connected to the limiting groove (14) through the connecting block (13).

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