A tool for processing special-shaped thin-walled gear ring

Abstract

The utility model discloses a tooling for processing a special-shaped thin-walled gear ring, comprising a base plate and a positioning cylinder arranged on the base plate, the head end of the gear ring workpiece extends into the positioning cylinder, and the upper end face of the positioning cylinder supports the lower end face of the positioning boss on the outer periphery of the end of the gear ring workpiece, a pressing plate is detachably mounted on the base plate, the pressing plate presses the upper end face of the positioning boss, and an adjustment support for supporting the gear ring workpiece is arranged in the positioning cylinder. The positioning cylinder and the pressing plate clamp the positioning boss of the gear ring workpiece, and the position of the gear ring workpiece with the highest strength is clamped and positioned, and a large special-shaped thin-walled gear ring is stably clamped, which is convenient for processing such as gear shaping, precision turning, grinding, and grinding, effectively reducing deformation caused by clamping, and greatly reducing vibration in parts processing, greatly improving the processing accuracy of parts, and realizing accurate positioning of parts, with high quality, high efficiency, and high reliability.

Description

Technical Field

[0001] The utility model relates to the field of gear ring processing, in particular to a tooling for processing special-shaped thin-wall gear rings. Background Art

[0002] Special-shaped thin-walled gear rings are widely used in various technical fields. Thin-walled parts have many advantages, such as light weight, material saving, space saving, etc., but they have poor rigidity and weak strength, and are prone to deformation during processing, such as deformation due to force, heat and vibration.

[0003] Deformation will affect the shape, position accuracy, and surface roughness of the workpiece, and will have a significant impact on the overall accuracy of the workpiece. Special-shaped thin-walled gear rings are often processed using simple tooling or process lengthening methods, but these two methods are not suitable for large special-shaped thin-walled gear rings with teeth and high precision requirements. Large special-shaped thin-walled gear rings have high machining accuracy requirements. Conventional clamping methods are very likely to cause clamping deformation and vibration during machining, which seriously affects machining accuracy.

[0004] Therefore, how to provide a tooling for processing special-shaped thin-walled gear rings that prevents deformation is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] The utility model aims to provide a tooling for processing special-shaped thin-walled gear rings, which can effectively reduce deformation caused by clamping, realize accurate positioning of parts, and improve product quality.

[0006] In order to solve the above-mentioned technical problems, the utility model provides a special-shaped thin-walled gear ring processing tool, including a base plate and a positioning cylinder arranged on the base plate, the head end of the gear ring workpiece extends into the positioning cylinder, and the upper end face of the positioning cylinder supports the lower end face of the positioning boss on the outer periphery of the end of the gear ring workpiece, a pressure plate is detachably mounted on the base plate, the pressure plate presses the upper end face of the positioning boss, and an adjustment support member for supporting the gear ring workpiece is arranged in the positioning cylinder.

[0007] Preferably, the inner wall of the positioning cylinder matches the shape of the outer wall of the gear ring workpiece, and the inner wall of the positioning cylinder includes an upper circumferential surface, a conical surface and a lower circumferential surface connected in sequence from top to bottom, and the diameter of the upper circumferential surface is greater than the diameter of the lower circumferential surface.

[0008] Preferably, a process hole communicating with the interior of the positioning cylinder is provided in the middle of the bottom plate, and the diameter of the process hole is equal to the diameter of the lower circumferential surface.

[0009] Preferably, the lower circumferential surface is provided with a supporting ring protruding inwardly.

[0010] Preferably, the adjustment support member includes an oblique support bolt and a vertical support bolt, the conical surface is provided with a penetrating oblique threaded hole, the oblique support bolt passes through the oblique threaded hole and supports the inclined surface of the gear ring workpiece, the support ring is provided with a penetrating vertical threaded hole, the vertical support bolt passes through the vertical threaded hole and supports the head end face of the gear ring workpiece.

[0011] Preferably, the plurality of oblique support bolts are evenly arranged along the circumferential direction, and the plurality of vertical support bolts are evenly arranged along the circumferential direction.

[0012] Preferably, the ends of the oblique support bolts and the vertical support bolts are provided with supporting round heads.

[0013] Preferably, the outer periphery of the bottom plate is provided with mounting holes for connecting to a workbench.

[0014] Preferably, it also includes a pull rod and an adjustable pad, the lower end of the pull rod is detachably connected to the base plate, the upper end of the pull rod is equipped with a nut for tightening the pressure plate, the inner end of the pressure plate presses the upper end surface of the positioning boss, and the outer end of the pressure plate presses the upper end of the adjustable pad.

[0015] Preferably, the plurality of pressing blocks are evenly arranged along the circumferential direction, and are provided with the same number of the adjustable pads and the pull rods correspondingly.

[0016] The utility model provides a tooling for processing special-shaped thin-walled gear rings, comprising a base plate and a positioning cylinder arranged on the base plate, the head end of the gear ring workpiece extends into the positioning cylinder, and the upper end face of the positioning cylinder supports the lower end face of a positioning boss on the outer periphery of the end of the gear ring workpiece, a pressing plate is detachably mounted on the base plate, the pressing plate presses the upper end face of the positioning boss, and an adjusting support member for supporting the gear ring workpiece is arranged in the positioning cylinder.

[0017] The positioning cylinder and the pressure plate clamp the positioning boss of the gear ring workpiece. By clamping and positioning the gear ring workpiece at the position with the highest strength, large-scale special-shaped thin-walled gear rings can be stably clamped, which is convenient for gear shaping, precision turning, grinding, and other processing. It effectively reduces the deformation caused by clamping and greatly reduces the vibration during part processing, greatly improves the processing accuracy of parts, realizes the precise positioning of parts, and has high quality, high efficiency, and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a specific implementation of a tooling for processing special-shaped thin-walled gear rings provided by the utility model;

[0019] Figure 2 A schematic structural diagram of a bottom plate in a specific implementation of a tooling device for machining special-shaped thin-walled gear rings provided by the utility model;

[0020] Figure 3A schematic structural diagram of a gear ring workpiece in a specific implementation of a tooling device for machining special-shaped thin-walled gear rings provided by the utility model;

[0021] Figure 4 This is a schematic structural diagram of a vertical support bolt in a specific implementation of a tooling device for processing special-shaped thin-walled gear rings provided by the utility model.

[0022] Among them, the base plate 1, the process hole 11, the positioning cylinder 2, the upper circumferential surface 21, the conical surface 22, the lower circumferential surface 23, the support ring 24, the oblique threaded hole 25, the vertical threaded hole 26, the gear ring workpiece 3, the positioning boss 31, the pressure plate 4, the oblique support bolt 5, the vertical support bolt 6, the support round head 61, the adjustable pad 7, and the pull rod 8. DETAILED DESCRIPTION

[0023] The core of the utility model is to provide a tooling for processing special-shaped thin-walled gear rings, which effectively reduces deformation caused by clamping, realizes precise positioning of parts, and improves product quality.

[0024] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Please refer to Figures 1 to 4 , Figure 1 A structural schematic diagram of a specific implementation of a tooling for processing special-shaped thin-walled gear rings provided by the utility model; Figure 2 A schematic structural diagram of a bottom plate in a specific implementation of a tooling device for machining special-shaped thin-walled gear rings provided by the utility model; Figure 3 A schematic structural diagram of a gear ring workpiece in a specific implementation of a tooling device for machining special-shaped thin-walled gear rings provided by the utility model; Figure 4 This is a schematic structural diagram of a vertical support bolt in a specific implementation of a tooling device for processing special-shaped thin-walled gear rings provided by the utility model.

[0026] The specific implementation of the utility model provides a processing tool for a special-shaped thin-walled gear ring, which is used for clamping and processing a special-shaped thin-walled gear ring. The gear ring workpiece 3 is a truncated cone cylinder structure, and the diameter of the head end of the gear ring workpiece 3 is smaller than the diameter of the end. The middle part of the gear ring workpiece 3 is a conical surface, and the outer periphery of the end of the gear ring workpiece 3 is provided with a positioning boss 31, which has the highest strength. The processing tool comprises a base plate 1, a positioning cylinder 2 and a pressing plate 4. The positioning cylinder 2 is vertically arranged and installed in the middle position of the base plate 1. The head end of the gear ring workpiece 3 extends into the positioning cylinder 2, and the upper end face of the positioning cylinder 2 supports the lower end face of the positioning boss 31 on the outer periphery of the end of the gear ring workpiece 3. The pressing plate 4 can be detachably installed on the base plate 1, and after installation, the pressing plate 4 presses the upper end face of the positioning boss 31, so that the positioning cylinder 2 and the pressing plate 4 clamp the positioning boss 31 of the gear ring workpiece 3. At the same time, an adjustment support member supporting the gear ring workpiece 3 is provided in the positioning cylinder 2 to prevent the part from being suspended in the air, so as to increase the rigidity of the part. The outer periphery of the bottom plate 1 is provided with mounting holes for connecting to a workbench.

[0027] By clamping and positioning the position with the highest strength of the gear ring workpiece 3, large-scale special-shaped thin-walled gear rings can be stably clamped, which facilitates gear shaping, precision turning, grinding, and other processing, effectively reduces the deformation caused by clamping, and greatly reduces the vibration during part processing, greatly improves the processing accuracy of parts, and realizes accurate positioning of parts, with high quality, high efficiency, and high reliability.

[0028] Specifically, the inner wall of the positioning cylinder 2 matches the shape of the outer wall of the gear ring workpiece 3. The inner wall of the positioning cylinder 2 is divided into three sections, including an upper circumferential surface 21, a conical surface 22 and a lower circumferential surface 23 connected in sequence from top to bottom. The diameter of the upper circumferential surface 21 is greater than the diameter of the lower circumferential surface 23, and the diameter of the conical surface 22 gradually decreases from top to bottom, so that each surface has a smooth transition.

[0029] Furthermore, a process hole 11 is provided in the middle of the bottom plate 1 to communicate with the interior of the positioning cylinder 2, and the diameter of the process hole 11 is equal to the diameter of the lower circumferential surface 23, which is convenient for positioning processing. And the lower circumferential surface 23 is provided with a support ring 24 protruding inward. The bottom plate 1, the positioning cylinder 2 and the support ring 24 are integrally processed and formed.

[0030] In the special-shaped thin-walled gear ring processing tool provided by the specific embodiment of the utility model, the adjustment support member includes an oblique support bolt 5 and a vertical support bolt 6, the tapered surface 22 is provided with a through oblique threaded hole 25, the oblique support bolt 5 passes through the oblique threaded hole 25 and supports the oblique surface of the gear ring workpiece 3, the support ring 24 is provided with a through vertical threaded hole 26, the vertical support bolt 6 passes through the vertical threaded hole 26 and supports the head end face of the gear ring workpiece 3. The gear ring workpiece 3 is supported obliquely upward by the oblique support bolt 5, and the gear ring workpiece 3 is supported vertically upward by the vertical support bolt 6.

[0031] A plurality of oblique support bolts 5 are evenly arranged along the circumferential direction, and a plurality of vertical support bolts 6 are evenly arranged along the circumferential direction. Support round heads 61 are provided at the ends of the oblique support bolts 5 and the vertical support bolts 6 to prevent damage to the surface of the gear ring workpiece 3. The number and layout of each component can also be adjusted according to the situation, all within the protection scope of the present utility model.

[0032] On the basis of the tooling for processing the special-shaped thin-walled gear ring provided in the above-mentioned specific embodiments, it also includes a tie rod 8 and an adjustable pad 7, the lower end of the tie rod 8 is detachably connected to the bottom plate 1, the upper end of the tie rod 8 is installed with a nut for pressing the pressure plate 4, the inner end of the pressure plate 4 presses the upper end surface of the positioning boss 31, and the outer end of the pressure plate 4 presses the upper end of the adjustable pad 7. Specifically, a plurality of pressure blocks are evenly arranged along the circumferential direction, and the same number of adjustable pads 7 and tie rods 8 are correspondingly provided.

[0033] The specific working process is as follows: before placing the bottom plate 1, clean the workbench and the positioning surface of the bottom plate 1. After the bottom plate 1 is aligned, fix it on the workbench to ensure that the bottom plate 1 cannot move relative to each other. Clean all the joint surfaces before installation to ensure that the matching surface of the ring gear workpiece 3 and the positioning cylinder 2, that is, the two ends of the positioning surface, are as uniform as possible, and the outer circle of the ring gear workpiece 3 cannot contact the positioning cylinder 2. The two ends of the adjustable pad 7 should be flattened in advance, and multiple adjustable pads 7 are evenly arranged around the positioning cylinder 2 and placed on the bottom plate 1. The upper end surface of the adjustable pad 7 and the upper end surface of the ring gear workpiece 3 are adjusted and controlled to be in the same plane. The lower end joint surface of the pressure plate 4 is milled flat in advance, and all the joint surfaces are cleaned before installation. Before pressing, use a feeler gauge to check the joint surface of the ring gear workpiece 3 and the positioning cylinder 2. The gap must be padded before pressing, and then the nut is locked. The pressure plate 4 is pulled down by the pull rod 8, and the upper end surface of the positioning boss 31 of the ring gear workpiece 3 is pressed by the pressure plate 4.

[0034] The oblique support bolts 5 and the vertical support bolts 6 are both spherical copper head bolts. When the spherical copper head bolts are used for auxiliary support, it is necessary to control the pre-tightening depth of the spherical copper head bolts to prevent the gear ring workpiece 3 from being deformed. The spherical copper head bolts only serve as auxiliary support. The dial indicator can be placed at the support point first, so that the dial indicator head is pressed at the support point, and then the bolt pre-tightening depth can be adjusted; a rubber pad of suitable thickness can also be placed in the gap between the outer circle of the gear ring taper and the positioning cylinder 2 to reduce the influence of the cutting force during the fine machining of the inner hole, so that the outer circle of the gear ring is evenly stressed and vibration is reduced, thereby improving the machining accuracy. When fine machining the gear ring, it is necessary to select appropriate cutting parameters, tools and their geometric angles to prevent the workpiece from being deformed.

[0035] The pressure plate 4 may be a plurality of plate members arranged separately, or may be a ring-shaped plate member used in conjunction with a plurality of pull rods 8 .

[0036] The above is a detailed introduction to the tooling for processing special-shaped thin-walled gear rings provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A tool for processing special-shaped thin-walled gear rings, characterized in that: The invention comprises a base plate (1) and a positioning cylinder (2) arranged on the base plate (1), the head end of a ring gear workpiece (3) extends into the positioning cylinder (2), and the upper end surface of the positioning cylinder (2) supports the lower end surface of a positioning boss (31) on the outer periphery of the rear end of the ring gear workpiece (3), a pressing plate (4) is detachably mounted on the base plate (1), the pressing plate (4) presses the upper end surface of the positioning boss (31), and an adjustment support member for supporting the ring gear workpiece (3) is arranged in the positioning cylinder (2).

2. The tooling for processing special-shaped thin-walled gear ring according to claim 1, characterized in that: The inner wall of the positioning cylinder (2) matches the shape of the outer wall of the gear ring workpiece (3), and the inner wall of the positioning cylinder (2) comprises an upper circumferential surface (21), a conical surface (22), and a lower circumferential surface (23) which are sequentially connected from top to bottom, and the diameter of the upper circumferential surface (21) is greater than the diameter of the lower circumferential surface (23).

3. The tooling for processing special-shaped thin-walled gear ring according to claim 2, characterized in that: A process hole (11) communicating with the interior of the positioning cylinder (2) is provided in the middle of the bottom plate (1), and the diameter of the process hole (11) is equal to the diameter of the lower circumferential surface (23).

4. The tooling for processing special-shaped thin-walled gear ring according to claim 3, characterized in that: The lower circumferential surface (23) is provided with a supporting ring (24) protruding inwards.

5. The tooling for processing special-shaped thin-walled gear ring according to claim 4, characterized in that: The adjustment support member comprises an oblique support bolt (5) and a vertical support bolt (6); the conical surface (22) is provided with a penetrating oblique threaded hole (25); the oblique support bolt (5) passes through the oblique threaded hole (25) and supports the inclined surface of the gear ring workpiece (3); the support ring (24) is provided with a penetrating vertical threaded hole (26); the vertical support bolt (6) passes through the vertical threaded hole (26) and supports the head end surface of the gear ring workpiece (3).

6. The tooling for processing special-shaped thin-walled gear ring according to claim 5, characterized in that: The plurality of oblique support bolts (5) are evenly arranged along the circumferential direction, and the plurality of vertical support bolts (6) are evenly arranged along the circumferential direction.

7. The tooling for processing special-shaped thin-walled gear ring according to claim 6, characterized in that: The ends of the oblique support bolts (5) and the vertical support bolts (6) are provided with supporting round heads (61).

8. The tooling for processing special-shaped thin-walled gear ring according to claim 1, characterized in that: The outer periphery of the bottom plate (1) is provided with mounting holes for connecting to a workbench.

9. The tooling for processing special-shaped thin-walled gear ring according to any one of claims 1 to 8, characterized in that: It also includes a pull rod (8) and an adjustable pad (7), the lower end of the pull rod (8) is detachably connected to the base plate (1), the upper end of the pull rod (8) is equipped with a nut for pressing the pressure plate (4), the inner end of the pressure plate (4) presses the upper end surface of the positioning boss (31), and the outer end of the pressure plate (4) presses the upper end of the adjustable pad (7).

10. The tooling for processing special-shaped thin-walled gear ring according to claim 9, characterized in that: The plurality of pressure plates are evenly arranged along the circumferential direction, and are provided with the same number of adjustable cushion blocks (7) and pull rods (8) correspondingly.

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