Forming tool for machining automobile ball joint arm
By designing a forming tool with a specific tilt angle and chamfered arc treatment, the problem of unstable quality of the forming groove in the machining of automotive ball joint arms was solved, achieving efficient and stable machining results.
Patent Information
- Application Number
- CN202422885992.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing process for machining the forming groove of automotive ball joint arms has a low pass rate in terms of contour and position accuracy, and the machining process is complicated. Differences in repeatability positioning accuracy and tool wear lead to unstable quality of the forming groove.
Design a forming tool for machining automotive ball joint arms, employing a four-cutting-tooth structure, where the first and second inclined teeth have inclination angles of 15-30 degrees and 12-25 degrees respectively, combined with chamfered rounded arc treatment to improve cutting performance and tool stability.
It improves the conformity and positional accuracy of the forming groove, reduces tool consumption, simplifies the machining process, and enhances tool life and machining efficiency.
Smart Images
Figure CN223441198U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile production, specifically is a kind of forming tool for automobile ball head joint arm machining. BACKGROUND
[0002] In the automobile production process, ball head joint arm is important connecting piece and support of power transmission system in automobile chassis system, to reduce the weight of chassis and automobile handling, the ball head joint arm of medium and high-end automobile generally adopts aluminum alloy material. Ball head joint arm inner cavity installs bearing, to transmit power drive wheel, its automobile ball head inner cavity wall will have six half-hole forming grooves, main role is to fix the bearing installed subsequently, to ensure the stability and firm degree of bearing installation in ball head joint arm inner cavity, need to strictly control the profile of forming groove on ball head joint arm inner cavity wall and the position degree of each forming groove, prevent bearing outer circle protrusion and ball head joint arm inner cavity combination difference, gap, serious time, due to hole position degree difference, lead to bearing unable to install, generally require that the profile degree of forming groove is within 0.04mm. At the same time, to ensure the stability of bearing and ball head joint arm connection, need to ensure that the inner wall of forming groove is smooth, and the surface roughness requirement is not less than Ra0.4. To ensure the precision design requirement of forming groove, currently generally need to adopt four processes of rough drilling-expansion-rough milling-fine milling-orifice chamfering.
[0003] The forming tool for automobile ball head joint arm machining currently used needs three milling cutters to process four forming surfaces in fine milling process, and seven cutters are needed for position processing forming, which is complicated, and due to multiple cutter processing, repeated positioning accuracy and different cutter design accuracy and wear difference, the profile degree and position degree qualification rate of forming groove are easily reduced.
[0004] In view of the above, the utility model discloses a kind of forming tool for automobile ball head joint arm machining to solve the problems in the above background technology. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a kind of forming tool for automobile ball head joint arm machining to solve the problems in the above background technology.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A kind of forming tool for automobile ball head joint arm machining, including cutter handle, the left end of the cutter handle is fixedly installed with cutter end tooth part, the outside of the cutter end tooth part is respectively provided with cutting tooth and cutter slot, the cutting tooth includes inclined tooth No. 1, inclined tooth No. 2 and straight tooth.
[0008] As the preferred scheme of the utility model, the cutting tooth has four, four cutting tooth is annular equidistant rotation about the outside surface of cutter end tooth part.
[0009] As the preferred scheme of the utility model, the left end of the first inclined tooth is chamfered and arc processed.
[0010] As the preferred scheme of the utility model, the right end of the first inclined tooth is connected with the left end of the second inclined tooth, and the connecting part is chamfered and arc processed.
[0011] As the preferred scheme of the utility model, the inclination angle of the first inclined tooth is 15 to 30 degrees.
[0012] As the preferred scheme of the utility model, the inclination angle of the second inclined tooth is 12 to 25 degrees.
[0013] Compared with the prior art, the utility model has the beneficial effects that:
[0014] In the utility model, the forming cutter for automobile ball head joint arm machining is arranged, so that the cutting tooth structure design is utilized, the cutting capacity of the end tooth is improved under the large angle combination of the first cutting tooth and the second cutting tooth, the cutting amount of the single end tooth is effectively reduced under the arrangement of the four cutting teeth, the service life of the cutter is improved, and the profile and location degree qualification rate of the forming groove are ensured. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 It is the overall structure schematic view of the utility model;
[0016] Fig. 2 It is the left side structure schematic view of the cutter of the utility model;
[0017] Fig. 3 It is the structure schematic view of the embodiment of the utility model.
[0018] In the drawing: 1, cutter handle part; 2, cutter end tooth part; 3, cutting tooth; 301, first inclined tooth; 302, second inclined tooth; 303, straight tooth; 4, cutter groove. DETAILED DESCRIPTION
[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0020] For the convenience of understanding the utility model, the utility model will be described more fully below with reference to the relevant drawings, several embodiments of the utility model are given, however, the utility model can be realized in many different forms, and is not limited to the embodiments described herein, on the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.
[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be an intervening element, and when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there can be an intervening element, the terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs, the terminology used in the specification of the utility model herein is only for the purpose of describing specific embodiments and is not intended to limit the utility model, the term "and / or" used herein includes any and all combinations of one or more of the associated listed items.
[0023] Embodiments, please refer to Figs. 1-3 The utility model provides a technical scheme:
[0024] A kind of forming tool for automobile ball head joint arm machining, including tool shank 1, tool shank 1 left end fixed installation has tool end tooth part 2, the outside of tool end tooth part 2 is provided with cutting tooth 3 and tool groove 4 respectively, cutting tooth 3 includes inclined tooth 301, No.
[0025] Specifically, cutting tooth 3 has four, four cutting tooth 3 about the outside surface of tool end tooth part 2 is annular equidistant rotation setting, the inclination angle of inclined tooth 301, No. is 15 degrees to 30 degrees, the inclination angle of inclined tooth 302, No. is 12 degrees to 25 degrees;
[0026] In the embodiment, the setting of cutting tooth 3 can effectively reduce the cutting amount of single tooth surface, improve tool life and stability during use, thereby improve the roughness of the forming groove, and effectively reduce the load of each tooth surface work, facilitate the improvement of the position degree qualification rate between each forming groove, wherein, as shown in Fig. 3 The angle between inclined tooth 301, No. is a, and the value of a is best 50 degrees, the angle between inclined tooth 302, No. is b, and the value of b is best 30 degrees, by the large rake angle setting of inclined tooth 301, No. and inclined tooth 302, No., the cutting performance of cutting tooth 3 can be improved, and the processing demand of aluminum alloy is met.
[0027] Specifically, the left end of the first inclined tooth 301 is chamfered and circularly arced, and the right end of the first inclined tooth 301 is connected to the left end of the second inclined tooth 302, and the connection is chamfered and circularly arced;
[0028] In this embodiment, the chamfered arc is provided to facilitate the fitting of the cutting tooth 3 with the ball support arm, and it is also convenient to remove the burrs at the opening of the forming groove.
[0029] It should be noted that the shape of the tool groove 4 is a straight line structure, which can improve the rigidity of the tool and avoid tool breakage or chipping.
[0030] The working process of the present utility model is as follows: when using a forming tool for processing an automobile ball joint arm, the forming tool is first installed in the required position, and then the cutting tooth 3 is brought close to the ball joint arm. Under the setting of the No. 1 inclined tooth 301 and the No. 2 inclined tooth 302, the end teeth and the peripheral tooth parts of the No. 1 inclined tooth 301 and the No. 2 inclined tooth 302 are better contacted with the ball joint arm, so that the four cutting teeth 3 are in contact with the ball joint arm at the same time, thereby reducing the cutting amount of a single tooth surface, ensuring the life of the tool, improving the processing efficiency, and saving tool consumption.
[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A forming tool for machining a ball joint arm of an automobile, comprising a tool shank (1), characterized in that: A tool end tooth portion (2) is fixedly mounted on the left end of the tool shank portion (1); cutting teeth (3) and a tool groove (4) are respectively provided on the outer side of the tool end tooth portion (2); the cutting teeth (3) include a first inclined tooth (301), a second inclined tooth (302) and a straight tooth (303).
2. A forming tool for machining an automobile ball joint arm according to claim 1, characterized in that: There are four cutting teeth (3), and the four cutting teeth (3) are arranged in a circular and equidistant manner with respect to the outer surface of the tool end tooth portion (2).
3. The forming tool for machining an automobile ball joint arm according to claim 1, characterized in that: The left end of the first inclined tooth (301) is chamfered and circularly arc-shaped.
4. The forming tool for machining a ball joint arm of an automobile according to claim 1, characterized in that: The right end of the first inclined tooth (301) is connected to the left end of the second inclined tooth (302), and the connection is processed into a chamfered arc.
5. The forming tool for machining an automobile ball joint arm according to claim 1, characterized in that: The inclination angle of the first inclined tooth (301) is 15 to 30 degrees.
6. The forming tool for machining an automobile ball joint arm according to claim 1, characterized in that: The inclination angle of the second inclined tooth (302) is 12 degrees to 25 degrees.