Flexible finish turning device for complex special-shaped trailing arm

Abstract

A flexible finish turning device for a complex special-shaped trailing arm comprises a base, a bearing I, a movable bending and pressing plate, a stud I, a positioning seat, a top pressing support, a hook claw, a positioning screw, a trimming positioning screw, a support assembly, a movable pressing plate, a plurality of balance irons, a stud II and a bearing II. The method is successfully applied to the technical field of flexible finish turning of the complex special-shaped trailing arm, so that the machining efficiency and the form and location tolerance precision of the machining axial surface of the complex special-shaped trailing arm are greatly improved. Compared with a traditional finish turning clamp, the device has the capability of constructing and precisely machining concentric axial surfaces of complex special-shaped trailing arms with various angles through modular flexible design. In addition, the device is good in reliability, innovativeness and economical efficiency, the machining quality is obviously improved, the machining efficiency is improved by more than three times, and the large-batch production condition can be met.

Description

Technical Field

[0001] The invention relates to the technical field of flexible finishing turning of complex special-shaped trailing arms, and in particular to a flexible finishing turning device for complex special-shaped trailing arms. Background Art

[0002] Finish turning is a high-precision machining process, which is mainly used for machining when the target size is close to or reaches the requirements. It requires the use of precise machining procedures and tools to ensure that the size and shape of the machined parts meet the requirements. The main difference between finish turning and rough turning lies in the different requirements and operation methods. Rough turning is a machining process carried out in a rough state or when the size is significantly different from the target size. It mainly removes most of the surface machining allowance, with a large feed rate and a low cutting speed; while finish turning needs to ensure the corresponding requirements of the product's dimensional tolerance, position tolerance and surface roughness, with a small feed rate and a high cutting speed.

[0003] The existing complex special-shaped longitudinal arms are processed by traditional fixtures and flexible fixtures. The traditional fixtures have low processing efficiency, the special-shaped longitudinal arms are complex, and they cannot be fixed by traditional fixtures and are easy to damage the lathe. At the same time, the processing precision of the processed surface is difficult to guarantee. The traditional fixtures are bulky, and the eccentric device design is complex. There are shortcomings such as difficulty in matching the center of gravity and low processing reversing clamping efficiency, resulting in low processing efficiency and quality, which is not conducive to mass production. Summary of the invention

[0004] The purpose of the present invention is to provide a flexible device for fine turning of complex special-shaped longitudinal arms, comprising: a base, a support I, a movable bending plate, a stud I, a positioning seat, a top pressure support, a hook, a positioning screw, a chamfering positioning screw, a support assembly, a movable pressure plate, a plurality of balancing irons, a stud II, and a support II.

[0005] The base is an axisymmetric circular plate structure as a whole, and a rectangular extension block is provided on one side.

[0006] A side of the base away from the rectangular extension block is provided with a plurality of screw holes I for connecting the balance iron, and a side close to the rectangular extension block is provided with a plurality of screw holes II for connecting the support assembly.

[0007] The circular plate of the base is provided with screw holes III for fixing the base.

[0008] A screw hole IV and a pin hole for fixing the positioning seat are arranged at the center of the circular plate of the base.

[0009] A support I is provided on the side of the symmetry axis of the base away from the rectangular extension block.

[0010] The top of the support I is fixed on one side of the movable bending plate, and a hook is provided on the other side of the movable bending plate.

[0011] A through slot I is provided at the center of the movable bending plate.

[0012] The stud I passes through the through slot I of the movable bending plate and abuts against the base, and the height of the movable bending plate is adjusted by the bolt.

[0013] The positioning seat is fixed on the base, and a top pressure support, a positioning screw and a chamfered positioning screw are arranged on the positioning seat.

[0014] The top pressure support is located below the hook claw and cooperates with the hook claw to longitudinally clamp the top of the workpiece to be processed.

[0015] The positioning screw and the edge-cutting positioning screw are respectively installed on both sides of the symmetry axis of the base and are used to horizontally clamp the top of the workpiece to be processed.

[0016] An auxiliary clamping device is installed on the support assembly for clamping the workpiece to be processed.

[0017] A movable pressing plate is arranged on the rectangular extension block of the base.

[0018] One side of the movable pressing plate is fixedly connected to the base via a support II.

[0019] A through slot II is provided at the center of the movable pressing plate.

[0020] The stud II passes through the through slot II of the movable pressing plate and abuts against the base, and the height of the movable pressing plate is adjusted by the bolts, thereby limiting the position of the workpiece to be processed.

[0021] When the device is used for fine turning, the support assembly is installed on the base according to the angular direction of the workpiece to be processed, the top of the workpiece to be processed is clamped longitudinally by the top pressure support and the hook claw, the top of the workpiece to be processed is clamped transversely by the positioning screw and the edge cutting positioning screw, the auxiliary clamping device is adjusted to clamp the workpiece to be processed, the balance iron is installed at the corresponding position of the base, and the workpiece to be processed is corrected.

[0022] Furthermore, the stud I is provided with a compression spring.

[0023] Furthermore, a compression spring is provided on the stud II.

[0024] Furthermore, the balance iron is mounted on the base by bolts.

[0025] The technical effect of the present invention is unquestionable. The present invention has been successfully applied to the technical field of flexible finishing machining of complex special-shaped longitudinal arms, which greatly improves the machining efficiency and shape and position tolerance accuracy of the machining axis surface of complex special-shaped longitudinal arms. Compared with traditional finishing machining fixtures, the device has the ability to precisely machine the concentric axis surfaces of complex special-shaped longitudinal arms of various angles through modular flexible design. In addition, the reliability, innovation and economy of the device are good, the machining quality is significantly improved, the machining efficiency is increased by more than 3 times, and it can meet the conditions of mass production.

[0026] The present invention optimizes the finishing process, makes the processing device structure lightweight and flexible, has the characteristics of simple counterweight structure, fast processing operation, etc. Compared with the traditional precision fixture, the processing accuracy and quality are significantly improved.

[0027] The present invention integrates and installs the locating seat, locating screw, support assembly, pressure plate, balance iron and fasteners on the hydraulic chuck of the lathe. The locating seat and the locating screw ensure the uniformity of the processing reference. At the same time, a flexible design is adopted, and the auxiliary clamping device and the balance iron can be flexibly installed, which can meet the requirements of stable and reliable precision processing of complex and special-shaped longitudinal arms at multiple angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the front view of the flexible device for finishing the complex special-shaped trailing arm;

[0029] Figure 2 A top view of the flexible device for finishing the complex and special-shaped longitudinal arm;

[0030] Figure 3 This is an enlarged view of the chamfered positioning screw;

[0031] Figure 4 It is a partial schematic diagram of the device after P-direction rotation;

[0032] In the figure, base 1, support I2, movable bending plate 3, stud I4, positioning seat 5, top pressure support 6, hook 7, positioning screw 8, chamfering positioning screw 9, support assembly 10, movable pressure plate 11, balance iron 12, stud II13, support II14. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the embodiments, but it should not be understood that the above subject matter of the present invention is limited to the following embodiments. Without departing from the above technical ideas of the present invention, various substitutions and changes are made according to the common technical knowledge and customary means in the art, which should all be included in the protection scope of the present invention.

[0034] Embodiment 1:

[0035] See also Figures 1 to 4A flexible device for finishing machining of complex special-shaped longitudinal arms includes: a base 1, a support I2, a movable bending plate 3, a stud I4, a positioning seat 5, a top pressure support 6, a hook 7, a positioning screw 8, a chamfering positioning screw 9, a support assembly 10, a movable pressure plate 11, a plurality of balancing irons 12, a stud II13, and a support II14.

[0036] The base 1 is an axisymmetric circular plate structure as a whole, and a rectangular extension block is provided on one side.

[0037] The base 1 is provided with a plurality of screw holes I for connecting the balance iron 12 on a side away from the rectangular extension block, and a plurality of screw holes II for connecting the support assembly 10 on a side close to the rectangular extension block.

[0038] The circular plate of the base 1 is provided with screw holes III for fixing the base 1 .

[0039] A screw hole IV and a pin hole for fixing the positioning seat 5 are provided at the center of the circular plate of the base 1 .

[0040] A support I2 is provided on the side of the symmetry axis of the base 1 away from the rectangular extension block.

[0041] The top of the support 12 is fixed on one side of the movable bending plate 3, and a hook 7 is provided on the other side of the movable bending plate 3.

[0042] A through slot I is provided at the center of the movable bending plate 3.

[0043] The stud I4 passes through the through slot I of the movable bending plate 3 and abuts against the base 1, and the height of the movable bending plate 3 is adjusted by the bolt.

[0044] The positioning seat 5 is fixed on the base 1 , and a top pressure support 6 , a positioning screw 8 , and a chamfered positioning screw 9 are provided on the positioning seat 5 .

[0045] The top pressing support 6 is located below the hook 7 and cooperates with the hook 7 to longitudinally clamp the top of the workpiece to be processed.

[0046] The positioning screw 8 and the chamfering positioning screw 9 are respectively installed on both sides of the symmetry axis of the base 1 to transversely clamp the top of the workpiece to be processed.

[0047] The support assembly 10 is provided with an auxiliary clamping device for clamping the workpiece to be processed.

[0048] A movable pressing plate 11 is provided on the rectangular extension block of the base 1 .

[0049] One side of the movable pressing plate 11 is fixedly connected to the base 1 via a support II14.

[0050] A through slot II is provided at the center of the movable pressing plate 11 .

[0051] The stud II13 passes through the through slot II of the movable pressing plate 11 and abuts against the base 1, and the height of the movable pressing plate 11 is adjusted by the bolts, thereby limiting the position of the workpiece to be processed.

[0052] When the device is used for fine turning, the support assembly 10 is installed on the base 1 according to the angular direction of the workpiece to be processed, the top of the workpiece to be processed is clamped longitudinally by the top pressure support 6 and the hook 7, the top of the workpiece to be processed is clamped transversely by the positioning screw 8 and the chamfering positioning screw 9, the auxiliary clamping device is adjusted to clamp the workpiece to be processed, the balance iron 12 is installed at the corresponding position of the base 1, and the workpiece to be processed is corrected.

[0053] Embodiment 2:

[0054] A flexible device for finishing machining a complex special-shaped longitudinal arm. The main technical content is shown in Example 1. Furthermore, a compression spring is provided on the stud I4.

[0055] Embodiment 3:

[0056] A flexible device for finishing machining a complex special-shaped longitudinal arm, the main technical content of which is shown in any one of embodiments 1 to 2, and further, a compression spring is provided on the stud II13.

[0057] Embodiment 4:

[0058] A flexible device for finishing machining a complex special-shaped longitudinal arm, the main technical content of which is shown in any one of Examples 1 to 3. Furthermore, the balance iron 12 is installed on the base 1 by bolts.

[0059] Embodiment 5:

[0060] See also Figures 1 to 4 A flexible device for finishing machining of complex special-shaped longitudinal arms includes: a base 1, a support I2, a movable bending plate 3, a stud I4, a positioning seat 5, a top pressure support 6, a hook 7, a positioning screw 8, a chamfering positioning screw 9, a support assembly 10, a movable pressure plate 11, a plurality of balancing irons 12, a stud II13, and a support II14.

[0061] The base 1 is an axisymmetric circular plate structure as a whole, and a rectangular extension block is provided on one side.

[0062] The base 1 is provided with a plurality of screw holes I for connecting the balance iron 12 on a side away from the rectangular extension block, and a plurality of screw holes II for connecting the support assembly 10 on a side close to the rectangular extension block.

[0063] The circular plate of the base 1 is provided with screw holes III for fixing the base 1 .

[0064] A screw hole IV and a pin hole for fixing the positioning seat 5 are provided at the center of the circular plate of the base 1 .

[0065] A support I2 is provided on the side of the symmetry axis of the base 1 away from the rectangular extension block.

[0066] The top of the support 12 is fixed on one side of the movable bending plate 3, and a hook 7 is provided on the other side of the movable bending plate 3.

[0067] A through slot I is provided at the center of the movable bending plate 3.

[0068] The stud I4 passes through the through slot I of the movable bending plate 3 and abuts against the base 1, and the height of the movable bending plate 3 is adjusted by the bolt.

[0069] The positioning seat 5 is fixed on the base 1 , and a top pressure support 6 , a positioning screw 8 , and a chamfered positioning screw 9 are provided on the positioning seat 5 .

[0070] The top pressing support 6 is located below the hook 7 and cooperates with the hook 7 to longitudinally clamp the top of the workpiece to be processed.

[0071] The positioning screw 8 and the chamfering positioning screw 9 are respectively installed on both sides of the symmetry axis of the base 1 to transversely clamp the top of the workpiece to be processed.

[0072] The support assembly 10 is provided with an auxiliary clamping device for clamping the workpiece to be processed.

[0073] A movable pressing plate 11 is provided on the rectangular extension block of the base 1 .

[0074] One side of the movable pressing plate 11 is fixedly connected to the base 1 via a support II14.

[0075] A through slot II is provided at the center of the movable pressing plate 11 .

[0076] The stud II13 passes through the through slot II of the movable pressing plate 11 and abuts against the base 1, and the height of the movable pressing plate 11 is adjusted by the bolts, thereby limiting the position of the workpiece to be processed.

[0077] When the device is used for fine turning, the support assembly 10 is installed on the base 1 according to the angular direction of the workpiece to be processed, the top of the workpiece to be processed is clamped longitudinally by the top pressure support 6 and the hook 7, the top of the workpiece to be processed is clamped transversely by the positioning screw 8 and the chamfering positioning screw 9, the auxiliary clamping device is adjusted to clamp the workpiece to be processed, the balance iron 12 is installed at the corresponding position of the base 1, and the workpiece to be processed is corrected.

[0078] The usage process of this complex special-shaped longitudinal arm flexible finishing device is: determine the angle direction of the component → install the auxiliary clamping device in the corresponding area → install the balance iron in the corresponding area → calibrate → process the concentric axis surface of the component → replace components with different angles → replace the auxiliary clamping device → replace the balance iron installation area accordingly → process the concentric axis surface of the component.

[0079] The specific operation process is: the support assembly 10 and the auxiliary clamping device composed of its corresponding fasteners, and the balance iron 12 can be installed in different areas through different holes on the base 1 to achieve flexible clamping. It only needs to adjust the installation area of ​​the auxiliary clamping device to cooperate with the balance iron to achieve precision processing of special-shaped and complex longitudinal arms at different angles.

[0080] Embodiment 6:

[0081] A flexible device for fine turning of a complex special-shaped longitudinal arm. The main technical content is shown in Example 5. Furthermore, a compression spring is provided on the stud I4.

[0082] Embodiment 7:

[0083] A flexible device for finishing machining a complex special-shaped longitudinal arm, the main technical content of which is shown in any one of Examples 5 to 6, and further, a compression spring is provided on the stud II13.

[0084] Embodiment 8:

[0085] A flexible device for finishing machining a complex special-shaped longitudinal arm, the main technical content of which is shown in any one of Examples 5 to 7. Furthermore, the balance iron 12 is installed on the base 1 by bolts.

[0086] Embodiment 9:

[0087] See also Figures 1 to 4 A flexible device for finishing a complex special-shaped longitudinal arm, comprising: a base 1, a support 2 (M24×430), a movable bending plate 3 (24×250), a compression spring (2×28×400), a washer (24), a stud 4 (M24×510), a positioning seat 5, a positioning screw 8, a cylindrical pin (16×60), a bolt (M20×60), a washer (20), a washer (20), a support assembly 10, a nut (M24), a stud 13 (M24×220), a compression spring (2×28 ×115), movable pressure plate 11 (A24×200), bolt (M10×30), bolt (M16×55), spring washer (16), screw (M24), chamfered positioning screw 9, nut, flat washer (16), spring washer (16), support 14 (M24×160), bolt (M24×65), nut (M12), top pressure support 6, balance iron A, balance iron B, balance iron C, bolt (M24×200), balance iron D, bolt (M20×200).

[0088] The device's locating seat, locating screw, support assembly, various pressure plates, balancing irons and fasteners are integrated and installed on the lathe hydraulic chuck. The locating seat and locating screw are used to ensure the uniformity of the processing reference. At the same time, a flexible design is adopted, and the auxiliary clamping device and balancing iron can be flexibly installed, which can meet the requirements of stable and reliable precision processing of complex and special-shaped longitudinal arms at multiple angles.

[0089] The usage process of this complex special-shaped longitudinal arm flexible finishing device is: determine the angle direction of the component → install the auxiliary clamping device in the corresponding area → install the balance iron in the corresponding area → calibrate → process the concentric axis surface of the component → replace components with different angles → replace the auxiliary clamping device → replace the balance iron installation area accordingly → process the concentric axis surface of the component.

[0090] The specific operation process is: the support assembly 10 and the auxiliary clamping device composed of its corresponding fasteners, and the balance iron 12 can be installed in different areas through different holes on the base 1 to achieve flexible clamping. It only needs to adjust the installation area of ​​the auxiliary clamping device to cooperate with the balance iron to achieve precision processing of special-shaped and complex longitudinal arms at different angles.

[0091] By adopting the process flow and processing device described in this embodiment, the turning processing of special-shaped component parts can be completed by performing a single calibration, thereby improving the processing accuracy and efficiency and realizing mass production.

Claims

1. A flexible device for finishing machining of complex special-shaped trailing arms, characterized in that: include: Base (1), support I (2), movable bending plate (3), stud I (4), positioning seat (5), top pressure support (6), hook (7), positioning screw (8), chamfered positioning screw (9), support assembly (10), movable pressing plate (11), a plurality of balancing irons (12), stud II (13), support II (14); The base (1) is an axisymmetric circular plate structure as a whole, and a rectangular extension block is provided on one side; The base (1) is provided with a plurality of screw holes I for connecting the balance iron (12) on a side away from the rectangular extension block, and a plurality of screw holes II for connecting the support assembly (10) on a side close to the rectangular extension block; The circular plate of the base (1) is provided with screw holes III for fixing the base (1). A screw hole IV and a pin hole for fixing the positioning seat (5) are provided at the center of the circular plate of the base (1); A support I (2) is provided on the side of the symmetry axis of the base (1) away from the rectangular extension block; The top of the support I (2) is fixed to one side of the movable bending and pressing plate (3), and a hook (7) is provided on the other side of the movable bending and pressing plate (3); A through slot I is provided at the center of the movable bending and pressing plate (3). The stud I (4) passes through the through slot I of the movable bending plate (3) and abuts against the base (1), and the height of the movable bending plate (3) is adjusted by the bolt; The positioning seat (5) is fixed on the base (1), and a top pressure support (6), a positioning screw (8), and a chamfered positioning screw (9) are provided on the positioning seat (5); The top pressure support (6) is located below the hook (7) and cooperates with the hook (7) to longitudinally clamp the top of the workpiece to be processed; The positioning screw (8) and the chamfering positioning screw (9) are respectively installed on both sides of the symmetry axis of the base (1) and are used to laterally clamp the top of the workpiece to be processed; The support assembly (10) is provided with an auxiliary clamping device for clamping the workpiece to be processed; A movable pressing plate (11) is provided on the rectangular extension block of the base (1); One side of the movable pressing plate (11) is fixedly connected to the base (1) via a support II (14); A through slot II is provided at the center of the movable pressing plate (11); The stud II (13) passes through the through slot II of the movable pressing plate (11) and abuts against the base (1), and the height of the movable pressing plate (11) is adjusted by the bolt, thereby limiting the position of the workpiece to be processed; When the device is used for precision turning, the support assembly (10) is installed on the base (1) according to the angular direction of the workpiece to be processed, the top of the workpiece to be processed is clamped longitudinally by the top pressure support (6) and the hook (7), the top of the workpiece to be processed is clamped transversely by the positioning screw (8) and the edge cutting positioning screw (9), the auxiliary clamping device is adjusted to clamp the workpiece to be processed, and the balance iron (12) is installed at the corresponding position of the base (1) to calibrate the workpiece to be processed.

2. The flexible device for finishing machining of complex special-shaped trailing arms according to claim 1 is characterized in that: The stud 1 (4) is provided with a compression spring.

3. The flexible device for finishing machining of complex special-shaped trailing arms according to claim 1 is characterized in that: The stud II (13) is provided with a compression spring.

4. The flexible device for finishing machining of complex special-shaped trailing arms according to claim 1, characterized in that: The balance iron (12) is mounted on the base (1) by means of bolts.

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