Quick assembling and disassembling device for profiling mandrels for turning semi-cylindrical surfaces on two sides of disc-shaped part

Abstract

The invention discloses a quick mounting and dismounting device for a profiling mandrel for turning semi-cylindrical surfaces on two sides of a disc-shaped part. The quick mounting and dismounting device comprises a first profiling pressing plate, a second profiling pressing plate, a profiling mandrel and a mandrel profiling supporting plate, wherein the profiling mandrel and the mandrel profiling supporting plate are integrally arranged; the profiling mandrels are integrally connected to the two ends of the profiling supporting plate, and end center holes are coaxially formed in the ends of the two profiling mandrels. In the clamping state, the first to-be-machined disc-shaped part and the second to-be-machined disc-shaped part are located on the two sides of the mandrel profiling supporting plate, and the planes of the sides, close to each other, of the first to-be-machined disc-shaped part and the second to-be-machined disc-shaped part are attached to the profiling positioning supporting faces on the two sides of the mandrel profiling supporting plate. The tool is capable of achieving accurate positioning and rapid assembling and disassembling.

Description

Technical Field

[0001] The invention belongs to the field of turning. Background Art

[0002] When a lathe is used to process the semi-cylindrical surfaces on both sides of an irregular disk-shaped part, the irregular shape of the disk-shaped part and the two semi-cylindrical surfaces on both sides of the part are not conducive to the positioning and clamping of traditional tooling. At the same time, due to the complexity of the processing process, in order to make the clamping more stable, the conventional tooling structure is often designed very complex for such parts. Both the process of designing and manufacturing tooling and the process of clamping and disassembling the parts to be processed are very complicated and involve many processes. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a quick loading and unloading device for a contoured mandrel for turning the semi-cylindrical surfaces on both sides of a disc-shaped part, which is a tooling for achieving precise positioning and quick loading and unloading.

[0004] Technical solution: To achieve the above-mentioned purpose, the quick loading and unloading device of the profiling mandrel for turning the semi-cylindrical surfaces on both sides of the disc-shaped parts of the present invention comprises a first profiling pressing plate, a second profiling pressing plate, an integrally arranged profiling mandrel and a mandrel profiling support plate; the profiling mandrel is integrally connected to the two ends of the profiling support plate, and the ends of the two profiling mandrels are coaxially provided with end center holes;

[0005] In the clamping state: the first disc-shaped part to be processed and the second disc-shaped part to be processed are clamped on both sides of the mandrel profiling support plate, and the planes of the sides of the first disc-shaped part to be processed and the second disc-shaped part to be processed close to each other are in contact with the profiling positioning support surfaces on both sides of the mandrel profiling support plate;

[0006] The first profiling pressing plate is detachably clamped on the side of the first disc-shaped part to be processed away from the mandrel profiling supporting plate, and the second profiling pressing plate is detachably clamped on the side of the second disc-shaped part to be processed away from the mandrel profiling supporting plate.

[0007] Furthermore, in the clamping state: the target turning surfaces on the same side of the first disc-shaped part to be processed and the second disc-shaped part to be processed are respectively recorded as the first arc target turning surface and the second arc target turning surface; the first arc target turning surface and the second arc target turning surface are on the same virtual cylindrical surface, and the virtual cylindrical surface is coaxial with the profiling core shaft.

[0008] Furthermore, it also includes a screw locking shaft, the axis of the profiling core shaft intersects with the axis of the screw locking shaft at right angles, and the screw locking shaft is perpendicular to the profiling support plate; the middle section of the screw locking shaft passes through the screw through hole at the central position of the core shaft profiling support plate; the external threads at both ends of the screw locking shaft are respectively threadedly matched with a first anti-loosening nut and a second anti-loosening nut.

[0009] Furthermore, a first rotating pressing plate is clamped and arranged between the first locking nut and the first contoured pressing plate, and a second rotating pressing plate is clamped and arranged between the second locking nut and the second contoured pressing plate;

[0010] The first rotating pressure plate and the second rotating pressure plate are both provided with hook openings, and in the clamping state, the two ends of the screw locking shaft are respectively clamped in the hook openings of the first rotating pressure plate and the second rotating pressure plate; the end of the first rotating pressure plate away from the screw locking shaft is locked and connected to the first contour pressure plate through the first threaded pin; the end of the second rotating pressure plate away from the screw locking shaft is locked and connected to the second contour pressure plate through the second threaded pin;

[0011] When the first lock nut is in a non-tightened state, the first rotating pressure plate can rotate around the first threaded pin to disengage the hook mouth from the screw locking shaft. When the second lock nut is in a non-tightened loose state, the second rotating pressure plate can rotate around the second threaded pin to disengage the hook mouth from the screw locking shaft.

[0012] Furthermore, one end of the first profiling pressing plate away from the screw locking shaft is positioned and matched with the edge of the mandrel profiling supporting plate through a first pin, and the first pin passes through a process hole on the first disc-shaped part to be processed;

[0013] One end of the second profiling pressing plate away from the screw locking shaft is positioned and matched with the edge of the mandrel profiling supporting plate through a second pin; the second pin passes through the process hole on the second disc-shaped part to be processed.

[0014] Furthermore, a U-shaped bayonet is provided on one side of the first profiling pressure plate and the second profiling pressure plate close to the screw locking shaft, and both ends of the screw locking shaft pass through the U-shaped bayonet on the first profiling pressure plate and the second profiling pressure plate respectively.

[0015] Furthermore, it also includes screw locking nuts clamped on both sides of the center of the contoured support plate, and the threads of the two screw locking nuts are matched with the external threads of the screw locking shaft.

[0016] Furthermore, a circle of sunken annular grooves are arranged on the profiling positioning support surfaces on both sides of the core shaft profiling support plate. In the clamped state, the first disc-shaped part to be processed and the second disc-shaped part to be processed respectively cover the sunken annular grooves of the two profiling positioning support surfaces; a conducting channel is arranged inside the plate body of the core shaft profiling support plate, and the conducting channel connects the sunken annular groove with the ambient atmospheric pressure.

[0017] Beneficial effects: The contoured support plate of the positioning structure of the present invention can be tightly fitted with the disc-shaped parts, two disc-shaped parts can be clamped at a time, and the quick-change clamping structure is adopted to achieve rapid loading and unloading of parts. The quick clamping structure is simple, the manufacturing cost is low, the positioning clamping is stable and reliable, and the semi-cylindrical surfaces on both sides of irregular disc-shaped parts can be efficiently processed on ordinary lathes. The loading and unloading is convenient and quick, which greatly improves the production efficiency of the enterprise and reduces the development cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a view of the device along the axis of the screw locking shaft;

[0019] Figure 2 for Figure 1 AA section view;

[0020] Figure 3 for Figure 1 B-direction view;

[0021] Figure 4 It is a schematic diagram of the processed parts;

[0022] Figure 5 This is a schematic diagram of the device when no parts are clamped;

[0023] Figure 6 It is a schematic diagram of the integrated structure of the profiling mandrel and the mandrel profiling support plate;

[0024] Figure 7 for Figure 5 axonometric drawing;

[0025] Figure 8 This is the axonometric drawing of the device when the parts are clamped. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] like Figures 1 to 8 The quick loading and unloading device of the profiling mandrel for turning the semi-cylindrical surfaces on both sides of the disc-shaped part shown in the figure comprises a first profiling pressure plate 1a, a second profiling pressure plate 1b, an integrally arranged profiling mandrel 16 and a mandrel profiling support plate 13; the profiling mandrel 16 is integrally connected to both ends of the profiling support plate 13, and both ends of the profiling mandrel 16 are coaxially provided with end center holes; during processing, the outer cylindrical surface of any end of the profiling mandrel 16 is clamped by a three-jaw chuck on a lathe, and the other end is supported by a top tip against the center hole of the end of the profiling mandrel 16, so that the mandrel profiling support plate 13 rotates coaxially around the machine tool axis.

[0028] Since the first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed are completely identical in structure, and both the first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed are asymmetrical structures, in the clamping state, Figures 1 to 3 as well as Figure 8: The first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed are not mirror images of each other, but the first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed are clamped in reverse on both sides of the core shaft profiling support plate 13, and the plane on the side where the first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed are close to each other fits the profiling positioning support surface 14 on both sides of the core shaft profiling support plate 13.

[0029] The profiling positioning support surface 14 has a step limiting surface 31 adapted to the part contour of the first disc-shaped part to be processed 3a or the second disc-shaped part to be processed 3b; when the first disc-shaped part to be processed 3a or the second disc-shaped part to be processed 3b is attached to the profiling positioning support surface 14 on one side of the mandrel profiling support plate 13, the contour of the step limiting surface 31 on the profiling positioning support surface 14 is aligned with the part contour of the first disc-shaped part to be processed 3a or the second disc-shaped part to be processed 3b for limiting.

[0030] The first profiling pressing plate 1a is detachably clamped on the side of the first disc-shaped part 3a to be processed away from the mandrel profiling supporting plate 13, and the second profiling pressing plate 1b is detachably clamped on the side of the second disc-shaped part 3b to be processed away from the mandrel profiling supporting plate 13.

[0031] like Figure 3 and 4 , in the clamping state: the first disc-shaped part to be processed 3a and the second disc-shaped part to be processed 3b have four target turning surfaces, and the target turning surfaces on the same side of the first disc-shaped part to be processed 3a and the second disc-shaped part to be processed 3b are respectively recorded as the first arc target turning surface 17a and the second arc target turning surface 17b; the first arc target turning surface 17a and the second arc target turning surface 17b are on the same virtual cylindrical surface 100, and the virtual cylindrical surface is coaxial with the profiling core shaft 16; the processing process of the two parts is completed with the same cutting tool, so that the contours of the two first arc target turning surfaces 17a and the second arc target turning surfaces 17b are highly consistent, and the error is minimized.

[0032] It also includes a screw locking shaft 7, the axis of the profiling mandrel 16 intersects with the axis of the screw locking shaft 7 at right angles, and the screw locking shaft 7 is perpendicular to the profiling support plate 13; the middle section of the screw locking shaft 7 passes through the screw through hole at the central position of the mandrel profiling support plate 13, and is synchronously matched through the keyway 11; the external threads at both ends of the screw locking shaft 7 are respectively threadedly matched with the first anti-loosening nut 6a and the second anti-loosening nut 6b, and the first anti-loosening nut 6a and the second anti-loosening nut 6b are respectively connected to the side of the first profiling pressure plate 1a and the second profiling pressure plate 1b away from each other.

[0033] A first rotating pressure plate 5a is clamped between the first anti-loosening nut 6a and the first profiling pressure plate 1a, and a second rotating pressure plate 5b is clamped between the second anti-loosening nut 6b and the second profiling pressure plate 1b; hook openings 22 are provided on the first rotating pressure plate 5a and the second rotating pressure plate 5b, and in the clamped state, the two ends of the screw locking shaft 7 are respectively clamped in the hook openings 22 of the first rotating pressure plate 5a and the second rotating pressure plate 5b; the end of the first rotating pressure plate 5a away from the screw locking shaft 7 is locked and connected to the first profiling pressure plate 1a through the first threaded pin 4a; the end of the second rotating pressure plate 5b away from the screw locking shaft 7 is locked and connected to the second profiling pressure plate 1b through the second threaded pin 4b.

[0034] When the first anti-loosening nut 6a is in a non-tightened state, the first rotating pressure plate 5a can rotate around the first threaded pin 4a to disengage the hook mouth 22 from the screw locking shaft 7. When the second anti-loosening nut 6b is in a non-tightened state, the second rotating pressure plate 5b can rotate around the second threaded pin 4b to disengage the hook mouth 22 from the screw locking shaft 7.

[0035] One end of the first profiling pressing plate 1a away from the screw locking shaft 7 is positioned and matched with the edge of the mandrel profiling supporting plate 13 through the first pin 2a, and the first pin 2a passes through the process hole on the first disc-shaped part 3a to be processed.

[0036] One end of the second profiling pressing plate 1b away from the screw locking shaft 7 is positioned and matched with the edge of the mandrel profiling supporting plate 13 through the second pin 2b; the second pin 2b passes through the process hole on the second disc-shaped part 3b to be processed.

[0037] The first pin 2a and the second pin 2b are both rhombus-shaped combined round pins. One end of the first pin 2a and the second pin 2b are both threadedly locked in the pin mounting hole of the mandrel contoured support plate 13 .

[0038] The first profiling pressure plate 1a and the second profiling pressure plate 1b are distributed in opposite directions relative to the core shaft profiling support plate 13; the first profiling pressure plate 1a and the second profiling pressure plate 1b are both provided with a U-shaped bayonet 21 on one side close to the screw locking shaft 7, and the two ends of the screw locking shaft 7 pass through the U-shaped bayonet 21 on the first profiling pressure plate 1a and the second profiling pressure plate 1b respectively.

[0039] In the clamping state, the opening direction of the hook opening 22 is staggered with the opening direction of the U-shaped bayonet opening 21;

[0040] It also includes screw locking nuts 8 clamped on both sides of the center of the contoured support plate 13 , and the two screw locking nuts 8 are threadedly matched on the external thread of the screw locking shaft 7 .

[0041] A circle of sunken annular grooves 18 are provided on the profiling positioning support surfaces 14 on both sides of the mandrel profiling support plate 13. In the clamped state, the first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed respectively cover the sunken annular grooves 18 of the two profiling positioning support surfaces 14; a conducting channel 15 is provided inside the plate body of the mandrel profiling support plate 13, and the conducting channel 15 connects the sunken annular grooves 18 with the ambient atmospheric pressure; if affected by factors such as cutting fluid, after the pressure plate is removed after the processing is completed, the part will still be adsorbed on the profiling positioning support surface 14 of the profiling mandrel, and the disc-shaped part can be easily removed by using an air gun to aim at the end of the conducting channel 15 connected to the atmospheric pressure and pressurize and blow.

[0042] The process of clamping the first disc-shaped part 3a to be processed:

[0043] First, one end of the screw locking shaft 7 is passed through the hole in the middle of the first disc-shaped part 3a to be processed, and then the first disc-shaped part 3a to be processed is attached to the profiling positioning support surface 14 on one side of the mandrel profiling support plate 13, and the contour of the step limiting surface 31 on the profiling positioning support surface 14 is aligned with the contour of the part on the first disc-shaped part 3a to be processed. The lower diamond pin of the first pin 2a passes through the process hole on the first disc-shaped part 3a to be processed to complete the positioning of the part; the first anti-loosening nut 6a is screwed to the end of the screw locking shaft 7 to ensure that the first disc-shaped part to be processed There is enough distance between the working disc-shaped part 3a and the first anti-loosening nut 6a. The U-shaped bayonet 21 of the first profiling pressure plate 1a is aligned with the neck of the screw locking shaft 7 and pushed closer to it, so that the neck of the screw locking shaft 7 is inserted into the U-shaped bayonet 21 of the first profiling pressure plate 1a. At the same time, the locking hole at the end of the first profiling pressure plate 1a away from the screw locking shaft 7 is aligned with the locking hole at the edge of the core shaft profiling support plate 13 and positioned and matched through the first pin 2a, so that the plane part of the concave side of the first profiling pressure plate 1a is in contact with the plane on the first disc-shaped part 3a to be processed.

[0044] The first rotating pressing plate 5a is rotated around the first threaded pin 4a, so that the hook opening 22 on the first rotating pressing plate 5a clamps the neck of the screw locking shaft 7; the first anti-loosening nut 6a is tightened to press the first contouring pressing plate 1a, thereby completing the positioning and clamping of a disc-shaped part.

[0045] According to the above steps, another disk-shaped part is positioned and clamped. After the clamping is completed, the target turning surfaces on the same side of the first disk-shaped part 3a to be processed and the second disk-shaped part 3b to be processed are respectively recorded as the first arc target turning surface 17a and the second arc target turning surface 17b; the first arc target turning surface 17a and the second arc target turning surface 17b are on the same virtual cylindrical surface 100, and the virtual cylindrical surface 100 is coaxial with the profiling mandrel 16, so that the processing of the two parts is completed by the same cutting tool, so that the contours of the two first arc target turning surfaces 17a and the second arc target turning surfaces 17b are highly consistent, and the error is minimized.

[0046] During processing, a three-jaw chuck is used to clamp the outer cylindrical surface of any end of the profiling mandrel 16 on a lathe, and a top is used to support the center hole of the end of the profiling mandrel 16 at the other end. The lathe is started, and the same cutting tool is used to cut the first arc target turning surface 17a and the second arc target turning surface 17b on the same side of the first disc-shaped part 3a to be processed and the second disc-shaped part 3b to be processed, and the processing of the two disc-shaped parts is completed in one clamping; after the processing is completed, the anti-loosening nut is rotated to loosen the profiling pressure plate, and the nut is ensured to be raised a sufficient distance, the rotating pressure plate is turned to disengage the opening part from the screw shaft, and the pressure plate is lifted to disengage the hole on the pressure plate from the diamond-shaped combination round pin, and the pressure plate is quickly removed, and then the disc-shaped part is removed from the clamping to complete the disassembly of the parts.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A quick loading and unloading device for the profiling mandrel for turning the semi-cylindrical surfaces on both sides of a disc-shaped part, characterized by: The invention comprises a first profiling pressing plate (1a), a second profiling pressing plate (1b), an integrally arranged profiling mandrel (16) and a mandrel profiling supporting plate (13); the profiling mandrel (16) is integrally connected to both ends of the profiling supporting plate (13), and the ends of the two profiling mandrels (16) are coaxially provided with end center holes; In the clamped state: the first disc-shaped part to be processed (3a) and the second disc-shaped part to be processed (3b) are clamped on both sides of the mandrel profiling support plate (13), and the planes of the sides of the first disc-shaped part to be processed (3a) and the second disc-shaped part to be processed (3b) close to each other are in contact with the profiling positioning support surfaces (14) on both sides of the mandrel profiling support plate (13); The first profiling pressure plate (1a) is detachably clamped on a side of the first disc-shaped part (3a) to be processed away from the mandrel profiling support plate (13), and the second profiling pressure plate (1b) is detachably clamped on a side of the second disc-shaped part (3b) to be processed away from the mandrel profiling support plate (13).

2. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of disc-shaped parts according to claim 1, characterized in that: In the clamped state: the target turning surfaces on the same side of the first disc-shaped part to be processed (3a) and the second disc-shaped part to be processed (3b) are respectively recorded as a first arc target turning surface (17a) and a second arc target turning surface (17b); the first arc target turning surface (17a) and the second arc target turning surface (17b) are on the same virtual cylindrical surface (100), and the virtual cylindrical surface is coaxial with the profiling mandrel (16).

3. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of a disc-shaped part according to claim 2, characterized in that: It also includes a screw locking shaft (7), the axis of the profiling mandrel (16) intersects with the axis of the screw locking shaft (7) at right angles, and the screw locking shaft (7) is perpendicular to the profiling support plate (13); the middle section of the screw locking shaft (7) passes through a screw through hole at the central position of the mandrel profiling support plate (13); and the external threads at both ends of the screw locking shaft (7) are respectively threadedly matched with a first anti-loosening nut (6a) and a second anti-loosening nut (6b).

4. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of a disc-shaped part according to claim 3, characterized in that: A first rotating pressing plate (5a) is clamped and arranged between the first anti-loosening nut (6a) and the first profiling pressing plate (1a), and a second rotating pressing plate (5b) is clamped and arranged between the second anti-loosening nut (6b) and the second profiling pressing plate (1b); The first rotating pressure plate (5a) and the second rotating pressure plate (5b) are both provided with hook openings (22). In the clamped state, the two ends of the screw locking shaft (7) are respectively clamped in the hook openings (22) of the first rotating pressure plate (5a) and the second rotating pressure plate (5b); the end of the first rotating pressure plate (5a) away from the screw locking shaft (7) is locked and connected to the first contour pressure plate (1a) through a first threaded pin (4a); the end of the second rotating pressure plate (5b) away from the screw locking shaft (7) is locked and connected to the second contour pressure plate (1b) through a second threaded pin (4b); When the first anti-loosening nut (6a) is in a non-tightened state, the first rotating pressure plate (5a) can rotate around the first threaded pin (4a) to disengage the hook opening (22) from the screw locking shaft (7); when the second anti-loosening nut (6b) is in a non-tightened state, the second rotating pressure plate (5b) can rotate around the second threaded pin (4b) to disengage the hook opening (22) from the screw locking shaft (7).

5. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of a disc-shaped part according to claim 4, characterized in that: One end of the first profiling pressing plate (1a) away from the screw locking shaft (7) is positioned and matched with the edge of the mandrel profiling supporting plate (13) through a first pin (2a), and the first pin (2a) passes through a process hole on the first disc-shaped part (3a) to be processed; The end of the second profiling pressure plate (1b) away from the screw locking shaft (7) is positioned and matched with the edge of the core shaft profiling support plate (13) through a second pin (2b); the second pin (2b) passes through the process hole on the second disc-shaped part (3b) to be processed.

6. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of a disc-shaped part according to claim 5, characterized in that: A U-shaped bayonet (21) is provided on one side of the first profiling pressure plate (1a) and the second profiling pressure plate (1b) close to the screw locking shaft (7), and the two ends of the screw locking shaft (7) pass through the U-shaped bayonet (21) on the first profiling pressure plate (1a) and the second profiling pressure plate (1b) respectively.

7. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of a disk-shaped part according to claim 6, characterized in that: It also includes screw locking nuts (8) clamped on both sides of the center of the contoured support plate (13), and the two screw locking nuts (8) are threadedly matched on the external thread of the screw locking shaft (7).

8. The quick-loading and unloading device for profiling mandrels for turning the semi-cylindrical surfaces on both sides of a disc-shaped part according to claim 7, characterized in that: A circle of sunken annular grooves (18) are arranged on the profiling positioning support surfaces (14) on both sides of the mandrel profiling support plate (13); in the clamped state, the first disc-shaped part to be processed (3a) and the second disc-shaped part to be processed (3b) respectively cover the sunken annular grooves (18) of the two profiling positioning support surfaces (14); a conducting channel (15) is arranged inside the plate body of the mandrel profiling support plate (13); the conducting channel (15) connects the sunken annular grooves (18) with the ambient atmospheric pressure.

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