A tool for quick clamping of thin-walled sleeve parts

Abstract

The application discloses a tool for quickly clamping a thin-wall sleeve part, and mainly relates to the clamping technology of thin-wall sleeve parts, and comprises a fixed base, a cover is arranged at the upper end of the fixed base, a rotating cam is rotatably arranged in the fixed base, clamping plates are slidably arranged around the rotating cam, a rotating rod is connected to the rotating cam, a limiting conical sliding plate is arranged in the rotating rod, and an eccentric handle is arranged on the limiting conical sliding plate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamping thin-walled sleeve parts, in particular to a tool for quickly clamping thin-walled sleeve parts. BACKGROUND

[0002] Thin-walled sleeve parts need to be fixed and clamped during processing. Generally, clamping thin-walled sleeve parts takes a lot of processing time, and the precision of the processed parts is difficult to guarantee. The dimensional precision and geometric tolerance precision are difficult to meet the requirements of the drawings, and quality problems often occur, leading to part scrap, affecting the overall product quality and product delivery, and bringing uncontrollable risks to product part quality. In order to guarantee the processing precision and clamping efficiency of thin-walled sleeve parts, reduce the clamping operation time of parts, reduce the deformation of thin-walled sleeve parts during clamping, guarantee the dimensional stability of the parts, improve the processing efficiency and reduce the total processing cost, especially the precision and clamping efficiency after clamping thin-walled sleeve parts, a tool capable of quickly clamping is needed. SUMMARY

[0003] (I) Technical problems to be solved

[0004] In view of the above problems, the present application needs to provide a tool for quickly clamping thin-walled sleeve parts, which can realize quick clamping and reduce damage to the parts.

[0005] (II) Technical solutions

[0006] In order to solve the above technical problems, the present application provides a tool for quickly clamping thin-walled sleeve parts, which comprises a fixed base, a cover is detachably installed on the top of the fixed base, a bottom cover plate is arranged at the bottom of the fixed base, a boss is arranged on the top of the fixed base, the diameter of the cover is smaller than the diameter of the boss of the fixed base, a rotating cam is rotatably installed in the fixed base, a clamping plate is slidably installed around the rotating cam, a rotating rod is fixedly connected to the bottom of the rotating cam, a limiting conical slide plate is slidably installed in the rotating rod, and an eccentric handle is rotatably installed on the limiting conical slide plate. The rotating rod drives the rotating cam to rotate, so that the clamping plate expands or shrinks, and the limiting conical slide plate is used to fix or rotate the rotating rod.

[0007] Further, the clamping plate comprises three circumferentially uniformly arranged clamping plates, each group of clamping plates has the same structure, the clamping plate comprises a sliding top block, the sliding top block is fixedly connected with a stop plate seat, the stop plate seat is slidably installed on the fixed base, and a contraction spring is arranged between the stop plate seat and the fixed base; the end of the sliding top block away from the center of the fixed base is arc-shaped, and the diameter of the annular formed after the contraction of each group of sliding top blocks is the same as the diameter of the cover; each group of sliding top blocks is driven by the rotating cam.

[0008] Further, the rotating cam bottom is a round shaft, the rotating rod is divided into two sections, the first section is a hollow rod, the second section is a solid rod, the solid rod is connected with the round shaft of the rotating cam by a positioning pin, the rotating rod drives the rotating cam to rotate, the outside of the rotating cam contacts with the sliding block, the rotating cam drives the sliding block to expand or shrink when rotating; the end of the hollow rod is fixedly connected with an end shaft cover, a limiting conical slide plate is slidably installed in the hollow rod; the rotating rod rotates in the limiting clamping opening.

[0009] Further, the front end of the limiting conical slide plate is a slope, a pressure spring is arranged between the limiting conical slide plate and the end shaft cover, the eccentric handle is divided into two sections, the first section is a round rod, the second section is a U-shaped frame, the two ends of the U-shaped frame are in the shape of a round cake, the round cake is eccentrically and rotatably installed on the limiting conical slide plate by a pin shaft bolt.

[0010] Further, the limiting clamping opening includes two parts, the first part is a fixed base side arc-shaped opening, and the second part is a tooth-shaped structure arranged above and below the arc-shaped opening.

[0011] Further, when the part close to the center of the round cake-shaped part of the eccentric handle contacts with the end shaft cover, the slope at the front end of the limiting conical slide plate is clamped with the tooth-shaped structure, and the rotating rod remains stationary; when the part away from the center of the round cake-shaped part of the eccentric handle contacts with the end shaft cover, the limiting conical slide plate is disengaged from the clamping of the tooth-shaped structure, and the rotating rod can rotate.

[0012] Compared with the prior art, the present application has the following beneficial effects: 1. The present application sets the rotating rod, the rotating cam and the sliding block, drives the rotating cam to rotate by pushing the rotating rod clockwise, so that the sliding block rapidly expands and displaces to clamp the thin-walled sleeve part, thereby reducing the auxiliary clamping time, the arc-shaped part on the outside of the sliding block and the annular part formed by the expansion can reduce the deformation of the thin-walled sleeve part during clamping, and this way of replacing the conventional clamping method can greatly reduce the quality risk caused by the deformation of the thin-walled sleeve part during clamping, improve the part machining precision, and ensure the quality and machining efficiency; 2. The present application sets the limiting conical slide plate, the pressure spring, the limiting clamping opening and the eccentric handle, so that the rotating rod has two states, i.e. stationary and rotatable, and the rotating rod can quickly disassemble or clamp the part when rotating, which is simple to operate and can avoid the quality risk caused by clamping deformation, such as out-of-tolerance of shape and position, effectively ensure the part precision and quality, reduce the machining time, greatly improve the machining efficiency and reduce the manufacturing and machining cost; 3. The tooling structure is simple, economical and feasible, and can also be used as a separate product tool. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0014] Figure 2 It is a top view of the present application.

[0015] Figure 3 As Figure 2 A-A section view.

[0016] Figure 4 As Figure 2 B-B section view.

[0017] Figure 5 As the bottom cover plate rear view.

[0018] Figure 6 As another angle of the present application.

[0019] Reference numeral: 1 - fixed base; 2 - sliding top block; 3 - cover; 4 - rotating cam; 5 - fastening screw; 6 - bearing; 7 - locking nut; 8 - bearing end cover; 9 - stop plate seat; 10 - compression spring; 11 - rotating rod; 12 - pressure spring; 13 - limit cone slide plate; 14 - end shaft cover; 15 - eccentric handle; 16 - pin shaft bolt; 17 - pin shaft nut; 18 - bottom cover plate; 19 - positioning pin; 20 - limit clamping port. DETAILED DESCRIPTION

[0020] The application will be further described below in conjunction with specific embodiments, which are illustrative of the application and are explained in the description, but are not limiting of the application.

[0021] Embodiment: as Figures 1-6 A tool for quick clamping of thin-walled sleeve parts, comprising a fixed base 1, a cover 3 is detachably installed on the top of the fixed base 1 by fastening screws 5, and a bottom cover plate 18 is also detachably provided at the bottom of the fixed base 1 by fastening screws 5.

[0022] The top of the fixed base 1 is provided with a boss, and the diameter of the cover 3 is smaller than the diameter of the boss of the fixed base 1, which is used to support the placement of thin-walled sleeve parts.

[0023] A rotating cam 4 is rotatably installed in the fixed base 1, the rotating cam 4 is slidably installed with a clamping plate around it, the bottom of the rotating cam 4 is a round shaft, and the top is a cam, and the rotating cam 4 is further provided with a bearing 6, a locking nut 7 and a bearing end cover 8 between the fixed base 1, the bearing end cover 8 is fixed on the fixed base 1 by the locking nut 7, and the bearing 6, the locking nut 7 and the bearing end cover 8 are provided to make the rotating cam 4 better rotate on the fixed base 1.

[0024] The clamping plate comprises three sets of clamping plates arranged uniformly in a circle, each set of clamping plates having the same structure, and each clamping plate comprising a sliding top block 2, the sliding top block 2 being fixedly connected with a stop plate seat 9, the stop plate seat 9 being slidably mounted on a fixed base 1, the fixed base 1 being provided with a sliding groove of fixed length, the stop plate seat 9 being slidably arranged in the sliding groove, a compression spring 10 being further arranged between the stop plate seat 9 and the fixed base 1, one end of the compression spring 10 being arranged on the stop plate seat 9 and the other end being arranged on a bearing end cover 8, so as to ensure the position of the stop plate seat 9 and enable the stop plate seat 9 to slide and reset.

[0025] The end of the sliding top block 2 away from the center of the fixed base 1 is arc-shaped, the sliding top block 2 moves on the fixed base 1 in a centripetal contraction or outward expansion manner, the diameter of the annular space formed by the centripetal contraction of each set of sliding top blocks 2 is the same as that of the cover 3, and the diameter of the annular space formed by the outward expansion of the sliding top block 2 can be the same as, smaller than or larger than the diameter of the boss of the fixed base 1, and the specific setting is made according to the specific condition.

[0026] The bottom of the rotating cam 4 is fixedly connected with a rotating rod 11, the rotating rod 11 is divided into two sections, the first section is a hollow rod, and the second section is a solid rod, the solid rod is connected and fastened with the circular shaft of the rotating cam 4 by means of a positioning pin 19, so as to realize precise touch friction rotation; the end of the hollow rod is fixedly connected with an end shaft cover 14, a limiting conical slide plate 13 is slidably mounted in the hollow rod; the rotating rod 11 rotates in a limiting stop opening 20.

[0027] The front end of the limiting conical slide plate 13 is beveled, a compression spring 12 is arranged between the limiting conical slide plate 13 and the end shaft cover 14, one end of the compression spring 12 is fixedly connected with the limiting conical slide plate 13, and the other end is fixedly connected with the end shaft cover 14, so as to enable the limiting conical slide plate 13 to slide and reset in the rotating rod 11.

[0028] The eccentric handle 15 is divided into two sections, the first section is a circular rod, and the second section is a U-shaped frame, the two ends of the U-shaped frame are circular cake-shaped, the circular cake-shaped structure is eccentrically rotatably mounted on the limiting conical slide plate 13 by means of a pin shaft bolt 16, the outer side of the pin shaft bolt 16 is fastened by a pin shaft nut 17, the circular cake-shaped structure has a part close to the center and a part away from the center, the eccentric handle 15 is rotated, when the part close to the center contacts the end shaft cover 14, the limiting conical slide plate 13 is engaged with the toothed structure on the limiting stop opening 20, and when the part away from the center contacts the end shaft cover 14, the limiting conical slide plate 13 retreats.

[0029] The limiting stop opening 20 comprises two parts, the first part is a circular arc-shaped opening on the side surface of the fixed base 1, and the second part is a toothed structure arranged above and below the circular arc-shaped opening.

[0030] When the bevel of the front end of the limiting conical slide plate 13 is engaged with the toothed structure, the rotating rod 11 remains stationary, and when the limiting conical slide plate 13 is disengaged from the engagement with the toothed structure, the rotating rod 11 rotates.

[0031] The working principle of the present application: through the application of a thin-walled sleeve part quick clamping tool on the machine tool equipment in batch processing, the traditional thin-walled sleeve part clamping operation mode is successfully replaced, and the precise clamping operation process of the thin-walled sleeve part with low cost and high efficiency is realized.

[0032] Specifically, the thin-walled sleeve part is placed on the boss of the fixed base 1, the rotating rod 11 is rotated clockwise, the rotating cam 4 is driven to rotate by the rotating rod 11, the sliding top block 2 is pushed to move outward by the rotating cam 4, at this time, the stop plate base 9 moves with it, and the contraction spring 10 is stretched, and the three sliding top blocks 2 arranged uniformly in a circle are used to support the thin-walled sleeve part to keep it from moving.

[0033] At this time, the eccentric handle 15 is rotated, and then the rotating rod 11 is driven by the pressure spring 12, the limiting taper slide plate 13 falls into the tooth structure on the limiting clamping port 20, so that the rotating rod 11 is fixed, and the thin-walled sleeve part can be quickly clamped.

[0034] When the operation is completed, the eccentric handle 15 is rotated again, the limiting taper slide plate 13 is driven to retreat, the limiting taper slide plate 13 is separated from the clamping of the tooth structure on the limiting clamping port 20, the rotating rod 11 is counterclockwise rotated, the rotating rod 11 drives the rotating cam 4 to rotate, the stop plate base 9 and the sliding top block 2 are reset under the action of the contraction spring 10, the sliding top block 2 is contracted to the center, the thin-walled sleeve part is automatically loosened, and the disassembly operation of the part is realized; the thin-walled sleeve part quick clamping tool is convenient to use and simple to operate.

[0035] The unmentioned part of the present application is applicable to the prior art.

Claims

1. A tool for quick clamping of thin-walled sleeve parts, comprising a fixed base (1), a cover (3) being detachably mounted on the top of the fixed base (1), and a bottom cover plate (18) being arranged at the bottom of the fixed base (1), characterized in that, The top of the fixed base (1) is provided with a boss, the diameter of the cover (3) is smaller than the diameter of the boss of the fixed base (1), the fixed base (1) is rotatably installed with a rotating cam (4), the rotating cam (4) is slidably installed with a clamping plate around, the bottom of the rotating cam (4) is fixedly connected with a rotating rod (11), the rotating rod (11) is slidably installed with a limiting conical slide plate (13) inside, the limiting conical slide plate (13) is rotatably installed with an eccentric handle (15) on the front end, the rotating rod (11) will drive the rotating cam (4) to rotate, so that the clamping plate expands outward or shrinks inward, the limiting conical slide plate (13) is used for fixing the rotating rod (11) or enabling the rotating rod (11) to rotate; The clamping plate comprises three circumferentially uniformly arranged clamping plates, each group of clamping plates is the same in structure, the clamping plate comprises a sliding top block (2), the sliding top block (2) is fixedly connected with a stop plate base (9), the stop plate base (9) is slidably installed on the fixed base (1), and a contraction spring (10) is further arranged between the stop plate base (9) and the fixed base (1); the end, away from the center of the fixed base (1), of the sliding top block (2) is arc-shaped, and the diameters of the annulars formed after each group of sliding top blocks (2) is contracted are the same as the diameter of the cover (3); each group of sliding top blocks (2) is driven by the rotating cam (4); The bottom of the rotating cam (4) is a round shaft, the rotating rod (11) is divided into two sections, the first section is a hollow rod, the second section is a solid rod, the solid rod is connected with the round shaft of the rotating cam (4) by means of a positioning pin (19), the rotating rod (11) drives the rotating cam (4) to rotate, the outer side of the rotating cam (4) is in contact with the sliding top block (2), and the rotating cam (4) drives the sliding top block (2) to expand outward or shrink inward when rotating; the end of the hollow rod is fixedly connected with an end shaft cover (14), and the limiting conical slide plate (13) is slidably installed in the hollow rod; the rotating rod (11) rotates in a limiting clamping opening (20); The front end of the limiting conical slide plate (13) is inclined, a pressure spring (12) is arranged between the limiting conical slide plate (13) and the end shaft cover (14), the eccentric handle (15) is divided into two sections, the first section is a round rod, and the second section is a U-shaped frame, the two ends of the U-shaped frame are in the shape of a round cake, and the round cake is rotatably installed on the limiting conical slide plate (13) by means of a pin bolt (16); The limiting clamping opening (20) comprises two parts, the first part is a circular arc-shaped opening in the side surface of the fixed base (1), and the second part is a tooth-shaped structure arranged above and below the circular arc-shaped opening; When the part, close to the center, of the round cake-shaped eccentric handle (15) is in contact with the end shaft cover (14), the inclined surface of the front end of the limiting conical slide plate (13) is clamped with the tooth-shaped structure, and the rotating rod (11) remains stationary; when the part, away from the center, of the round cake-shaped eccentric handle (15) is in contact with the end shaft cover (14), the limiting conical slide plate (13) is disengaged from the clamping of the tooth-shaped structure, and the rotating rod (11) can rotate.

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