Pneumatic tensioning tool for part machining

Abstract

The utility model discloses a pneumatic tensioning tool for part processing, which comprises a working turntable, the back of the working turntable is provided with a fixed chassis, the back of the fixed chassis is fixedly connected with a motor box, the motor box is internally provided with a servo motor, and the top end of the servo motor is provided with a rotating rod. The top end of the rotating rod penetrates through the fixed base plate and is fixedly connected with the working rotary table, a limiting supporting structure is arranged on the surface of the working rotary table, a plurality of tensioning tool structures are arranged at the top end of the limiting supporting structure, and pneumatic structures are arranged at the lower ends of the tensioning tool structures. The work rotary table is rotated, the to-be-machined part is accurately conveyed to the machining position, manual carrying or adjustment is not needed, the link of manual repeated operation of the tensioning tool is reduced, the labor cost is saved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of part processing, specifically is a kind of pneumatic tensioning tool for part processing. BACKGROUND

[0002] When bearing parts are processed, the precision and efficiency of processing are two key factors, with the continuous progress of industrial technology, the demand for part processing of complex shape and high precision is increasing, and the traditional mechanical clamping mode often needs complex manual operation, such as using wrench to tighten nut, which is not only slow, but also labor-intensive;The emergence of pneumatic tensioning tool can realize rapid tensioning and loosening action by air pressure driving, which can meet the positioning and clamping requirements of these high-precision bearing parts during processing while ensuring that the parts do not displace during processing, thereby improving the processing precision;However, the existing pneumatic tensioning tool still has the following problems:

[0003] In the traditional bearing part processing process, only single tensioning tool is repeatedly used to tension the parts for processing, which needs to be replaced and clamped by artificial repeatedly, or multiple pneumatic tensioning tools need to be manually moved to the position where the parts can be processed, which consumes labor and time cost, and the tensioning of the parts will cause extrusion wear to the inner ring of the bearing, affecting the service life of the bearing. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of pneumatic tensioning tool for part processing to solve the problem that single tensioning tool is repeatedly used to tension the parts for processing in the above background technology, which needs to be replaced and clamped by artificial repeatedly, or multiple pneumatic tensioning tools need to be manually moved to the position where the parts can be processed, which consumes labor and time cost, and the tensioning of the parts will cause extrusion wear to the parts.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of pneumatic tensioning tool for part processing, including work turntable, the back of the work turntable is equipped with fixed base plate, the back of the fixed base plate is fixedly connected with motor box, the inside of the motor box is equipped with servo motor, the top of the servo motor is equipped with rotating rod, the top of the rotating rod is fixedly connected with the work turntable and is fixed through fixed base plate, the surface of the work turntable is equipped with limit support structure, the top of the limit support structure is equipped with several tensioning tool structures, the lower end of several tensioning tool structures is equipped with pneumatic structure;The existence of servo motor provides stable and accurate power for the rotation of work turntable, which facilitates the quick and accurate switching of angle and position of parts during processing, improves the processing efficiency as a whole, and reduces the downtime during processing.

[0006] Preferably, the limiting support structure includes an outer support ring and an inner support ring. The bottom surfaces of both the outer and inner support rings are fixedly connected to the surface of the turntable. A plurality of evenly distributed outer ring support rods are fixedly connected to the surface of the outer support ring, and a plurality of evenly distributed inner ring support rods are fixedly connected to the surface of the inner support ring. Limiting support plates are fixedly connected to the top ends of both the outer and inner ring support rods. The fixed connection of both the outer and inner support rings to the surface of the turntable provides a solid and stable underlying frame for the entire limiting support structure. This effectively absorbs the pressure from the tensioning fixture structure borne by the outer ring support rods, inner ring support rods, and limiting support plates. The evenly distributed outer and inner ring support rods provide support to the part from the outer and inner circumference directions, respectively, ensuring that the part is effectively limited at various angles in the horizontal direction and that it remains in the correct predetermined position during processing.

[0007] Preferably, the tensioning fixture structure includes a tensioning fixture table. The four corners of the bottom surface of the tensioning fixture table are fixedly connected to the upper surface of the limiting support piece. Each of the four corners of the surface of the tensioning fixture table is provided with a limiting groove. The surface of the tensioning fixture table has several evenly distributed guide grooves, and a guide through hole is formed in the center of the surface of the tensioning fixture table. The fixed connection between the four corners of the bottom surface of the tensioning fixture table and the upper surface of the limiting support piece ensures a tight and reliable connection between the tensioning fixture structure and the limiting support structure. The tensioning fixture can fully utilize the stable support provided by the limiting support structure, so that even when faced with external forces such as cutting force and vibration during the part processing, the tensioning fixture can maintain its accurate position, thereby ensuring the effective clamping and tensioning of the part. The guide groove and guide through hole can provide accurate movement paths for the sliding tensioning block and the lifting block, ensuring the accuracy and stability of their movement direction, avoiding the impact of the tensioning effect and the clamping accuracy of the part due to the offset or shaking of the moving parts, making the tensioning process smoother and more precise.

[0008] Preferably, the inside of the guide groove is provided with a plurality of sliding expansion blocks, the surface of the sliding expansion block is in sliding connection with the surface of the guide groove, a plurality of anti-wear washers are sleeved between the sliding expansion blocks, a plurality of spring rings are fixedly connected to the end of the sliding expansion block away from the guide hole, a plurality of limit plates are fixedly connected to the end of the spring ring away from the sliding expansion block, and the bottom surface of the limit plate is fixedly connected with the surface of the limit groove. When the pneumatic structure exerts force, the sliding expansion block can move accurately according to the guide of the guide groove, thereby realizing the expansion operation of the part. When the pneumatic structure drives the sliding expansion block to perform the expansion action and moves away from the spring ring, the spring ring will be stretched to store elastic potential energy. When the pneumatic structure stops exerting force, the spring ring will pull the sliding expansion block back to the initial position by its own elastic force, realizing the elastic reset of the expansion tool, ensuring that the expansion tool can quickly return to the initial state after each expansion operation, preparing for the next expansion operation, and helping to maintain the stability of the entire tool system, avoiding problems in subsequent clamping operations due to the failure of the expansion block to reset, and the anti-wear washer can also ensure that the part is not damaged by excessive extrusion, thereby achieving high practical benefits.

[0009] Preferably, the pneumatic structure comprises a pneumatic cylinder, the bottom end of the pneumatic cylinder is fixedly connected with a limit base, the bottom surface of the limit base is fixedly connected with the surface of the work turntable, the middle part of the top end of the pneumatic cylinder is fixedly connected with a pneumatic cylinder guide rod, the top end of the pneumatic cylinder guide rod is fixedly connected with a jacking block, and the surface of the jacking block is in contact with one end of the sliding expansion block. The limit base provides a stable mounting platform for the pneumatic cylinder, which can firmly fix the pneumatic cylinder on the work turntable to prevent the pneumatic cylinder from loosening, shifting and other conditions due to stress, ensuring the stability of the pneumatic cylinder during the entire working process, thereby ensuring that the pneumatic structure can continuously and reliably function. When the pneumatic cylinder works and pushes the jacking block upward through the pneumatic cylinder guide rod, the jacking block will come into contact with the sliding expansion block and exert force on it. Since the sliding expansion block is in sliding connection with the guide groove, the sliding expansion block will slide along the direction of the guide groove under the push of the jacking block, thereby realizing the expansion operation of the part, ensuring that the power generated by the pneumatic cylinder can be effectively converted into the sliding power of the sliding expansion block, and thereby realizing the accurate expansion of the part, ensuring the stability and machining precision of the part clamping.

[0010] Preferably, the jacking block is movably connected with the guide hole, and the inner diameter of the guide hole matches the outer diameter of the jacking block. When the jacking block moves in the guide hole, it can move in a straight line in a specific direction.

[0011] Compared with the prior art, the beneficial effects of the utility model are that: rotating the work rotary table, the parts to be machined are accurately sent to the machining position, manual carrying or adjustment is not needed, the pneumatic structure and the whole tooling device are cooperated, the automatic tightening and loosening of the parts can be realized, the steps of repeatedly operating the tightening tooling device by manual are reduced, the labor cost is greatly saved, the production efficiency is improved, and the anti-wear gasket on the outer side of the sliding tightening block can avoid the situation that the internal extrusion deformation or excessive wear of the parts is caused by excessive local pressure, the quality of the parts is effectively protected, and it is ensured that the machined parts can meet higher precision and quality requirements. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the pneumatic tightening tooling device for part machining of the utility model;

[0013] Figure 2 It is a front view of the pneumatic tightening tooling device for part machining of the utility model;

[0014] Figure 3 It is a sectional view of the pneumatic tightening tooling device for part machining of the utility model;

[0015] Figure 4 It is a top view of the pneumatic tightening tooling device for part machining of the utility model;

[0016] Figure 5 It is a structural schematic view of the tightening tooling structure of the utility model;

[0017] Figure 6 It is a front view of the tightening tooling structure of the utility model;

[0018] Figure 7 It is a sectional view of the tightening tooling structure of the utility model.

[0019] In the drawing: 1, work rotary table; 2, motor box; 3, servo motor; 4, outer support ring; 5, inner support ring; 6, outer ring support rod; 7, inner ring support rod; 8, limit support sheet; 9, tightening tooling table; 10, limit groove; 11, guide groove; 12, guide through hole; 13, sliding tightening block; 14, spring ring; 15, limit plate; 16, anti-wear gasket; 17, jacking block; 18, cylinder guide rod; 19, cylinder; 20, limit base; 21, fixed base plate; 22, rotating rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model.

[0021] Please refer to Figures 1-7The utility model provides a kind of pneumatic tensioning tool for part processing, including work turntable 1, the back of work turntable 1 is equipped with fixed chassis 21, fixed chassis 21 is fixedly connected with motor box 2, the inside of motor box 2 is equipped with servo motor 3, the top of servo motor 3 is equipped with rotating rod 22, rotating rod 22 top penetrates fixed chassis 21 and is fixedly connected with work turntable 1, the surface of work turntable 1 is equipped with limit support structure, the top of limit support structure is equipped with several tensioning tool structures, the lower end of several tensioning tool structures is equipped with pneumatic structure;

[0022] When using, motor box 2 protects servo motor 3 from outside dust, debris and other impurities interference and possible collision damage, and servo motor 3 can drive work turntable 1 to rotate at a set speed, angle and direction.

[0023] Further, the limit support structure includes an outer support ring 4 and an inner support ring 5, the bottom surface of the outer support ring 4 and the bottom surface of the inner support ring 5 are fixedly connected with the surface of the work turntable 1, the surface of the outer support ring 4 is fixedly connected with a plurality of evenly distributed outer ring support rods 6, the surface of the inner support ring 5 is fixedly connected with a plurality of evenly distributed inner ring support rods 7, the top ends of the plurality of outer ring support rods 6 and the top ends of the inner ring support rods 7 are fixedly connected with limit support plates 8.

[0024] When using, the outer support ring 4 and the inner support ring 5 are fixedly connected with the surface of the work turntable 1 through their bottom surfaces, thereby building a basic framework of the limit support structure on the work turntable 1, providing a stable installation foundation for the tensioning tool structure.

[0025] Further, the tensioning tool structure includes a tensioning tool table 9, the four corners of the bottom surface of the tensioning tool table 9 are fixedly connected with the upper surfaces of the limit support plates 8, the four corners of the surface of the tensioning tool table 9 are provided with limit grooves 10, the surface of the tensioning tool table 9 is provided with a plurality of evenly distributed guide grooves 11, and a guide through hole 12 is formed in the middle of the surface of the tensioning tool table 9.

[0026] When using, the tensioning tool structure assists the stable support foundation provided by the limit support structure, ensuring that it will not loosen, shift or the like during subsequent part processing, and as the parts are placed on the tensioning tool table 9, the plurality of evenly distributed guide grooves 11 and the guide through hole 12 formed in the middle provide important path basis for the movement of subsequent tensioning operation related components.

[0027] Further, the inner part of each guide groove 11 is provided with a sliding expansion block 13, the surface of the sliding expansion block 13 is in sliding connection with the surface of the guide groove 11, the sliding expansion blocks 13 are sleeved with anti-wear washers 16, the end of each sliding expansion block 13 away from the guide through hole 12 is fixedly connected with a spring ring 14, and the end of each spring ring 14 away from the sliding expansion block 13 is fixedly connected with a limiting plate 15, and the bottom surface of the limiting plate 15 is fixedly connected with the surface of the limiting groove 10;

[0028] In use, when the pneumatic structure starts to work and exerts force to push the related components, the jacking block 17 connected with the pneumatic structure pushes the sliding expansion block 13, the sliding expansion block 13 slides along the guide groove 11 to the direction of the limiting plate 15, and the plurality of sliding expansion blocks 13 exert expansion force on the parts placed on the expansion tooling table 9 from different directions to expand the parts.

[0029] Further, the pneumatic structure comprises a pneumatic cylinder 19, the bottom end of the pneumatic cylinder 19 is fixedly connected with a limiting base 20, the bottom surface of the limiting base 20 is fixedly connected with the surface of the work turntable 1, the middle part of the top end of the pneumatic cylinder 19 is fixedly connected with a pneumatic cylinder guide rod 18, the top end of the pneumatic cylinder guide rod 18 is fixedly connected with a jacking block 17, and the surface of the jacking block 17 is in contact connection with one end of the sliding expansion block 13;

[0030] In use, the limiting base 20 provides a stable installation basis for the pneumatic cylinder 19, so as to ensure that the pneumatic cylinder 19 can be firmly fixed on the work turntable 1 in the subsequent working process, along with the gradual increase of the air pressure in the pneumatic cylinder 19, the pneumatic cylinder guide rod 18 is driven to move upward synchronously, and then the jacking block 17 is also driven to move upward, so as to drive the sliding expansion block 13 to slide, thereby realizing the expansion operation on the parts.

[0031] Further, the jacking block 17 is movably connected with the guide through hole 12, and the inner diameter of the guide through hole 12 matches the outer diameter of the jacking block 17;

[0032] In use, the jacking block 17 can accurately ascend or descend according to the path of the guide through hole 12, and continuously provide the abutting force for the plurality of sliding expansion blocks 13.

[0033] In use, the embodiment of the present application controls the gas source to input gas pressure into the cylinder 19 of the pneumatic structure, the cylinder guide rod 18 moves upward, and then pushes the jacking block 17 to move upward, in the process of moving upward, the jacking block 17 is in contact with one end of the sliding tensioning block 13 in the guide groove 11 of the tensioning tool structure, and pushes a plurality of sliding tensioning blocks 13 to move along the guide groove 11 to the direction of the limiting plate 15, the plurality of sliding tensioning blocks 13 are cooperatively slid from different directions to apply uniform tensioning force to the part, the servo motor 3 drives the work turntable 1 to rotate, and the part is accurately moved to the required machining position, after the part is machined, the cylinder guide rod 18 and the jacking block 17 return to the initial position, the jacking block 17 no longer applies a pushing force to the sliding tensioning block 13, and the sliding tensioning block 13 returns to the initial position under the elastic force of the spring ring 14, and is ready for the next tensioning operation.

[0034] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A pneumatic tensioning tool for machining of parts, comprising a worktable (1), characterized in that: The back surface of the working turntable (1) is provided with a fixed base plate (21), the back surface of the fixed base plate (21) is fixedly connected with a motor box (2), the inside of the motor box (2) is provided with a servo motor (3), the top end of the servo motor (3) is provided with a rotating rod (22), the top end of the rotating rod (22) penetrates through the fixed base plate (21) and is fixedly connected with the working turntable (1), the surface of the working turntable (1) is provided with a limiting support structure, the top end of the limiting support structure is provided with a plurality of expansion tool structures, and the lower ends of the plurality of expansion tool structures are all provided with pneumatic structures.

2. The pneumatic tensioning tool for machining of parts according to claim 1, characterized in that: The limiting support structure comprises an outer support ring (4) and an inner support ring (5), the bottom surface of the outer support ring (4) and the bottom surface of the inner support ring (5) are both fixedly connected with the surface of the working turntable (1), the surface of the outer support ring (4) is fixedly connected with a plurality of uniformly distributed outer ring support rods (6), the surface of the inner support ring (5) is fixedly connected with a plurality of uniformly distributed inner ring support rods (7), and the top ends of the plurality of outer ring support rods (6) and the top ends of the inner ring support rods (7) are all fixedly connected with limiting support plates (8).

3. The pneumatic tensioning tool for machining of parts according to claim 2, characterized in that: The expansion tool structure comprises an expansion tool table (9), the four corners of the bottom surface of the expansion tool table (9) are all fixedly connected with the upper surface of the limiting support plate (8), the four corners of the surface of the expansion tool table (9) are all provided with limiting grooves (10), a plurality of uniformly distributed guide grooves (11) are formed in the surface of the expansion tool table (9), and a guide through hole (12) is formed in the middle of the surface of the expansion tool table (9).

4. The pneumatic tensioning tool for machining of parts according to claim 3, characterized in that: The inside of each of the plurality of guide grooves (11) is provided with a sliding expansion block (13), the surface of the sliding expansion block (13) is in sliding connection with the surface of the guide groove (11), a wear-resistant washer (16) is sleeved between the plurality of sliding expansion blocks (13), one end of each of the plurality of sliding expansion blocks (13) away from the guide through hole (12) is fixedly connected with a spring ring (14), one end of each of the plurality of spring rings (14) away from the sliding expansion block (13) is fixedly connected with a limiting plate (15), and the bottom surface of the limiting plate (15) is fixedly connected with the surface of the limiting groove (10).

5. The pneumatic tensioning tool for machining of parts according to claim 1, characterized in that: The pneumatic structure comprises a pneumatic cylinder (19), the bottom end of the pneumatic cylinder (19) is fixedly connected with a limiting base (20), the bottom surface of the limiting base (20) is fixedly connected with the surface of the working turntable (1), the middle of the top end of the pneumatic cylinder (19) is fixedly connected with a pneumatic cylinder guide rod (18), the top end of the pneumatic cylinder guide rod (18) is fixedly connected with a jacking block (17), and the surface of the jacking block (17) is in contact connection with one end of the sliding expansion block (13).

6. The pneumatic tensioning tool for machining of parts according to claim 5, characterized in that: The jacking block (17) is in movable connection with the guide through hole (12), and the inner diameter of the guide through hole (12) matches the outer diameter of the jacking block (17).

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