Tool for surface heat treatment of automobile chassis part

Abstract

The utility model relates to the technical field of heat treatment, and discloses an automobile chassis part surface heat treatment tool which comprises a lower fixing ring and an upper fixing ring, the inner wall of the lower fixing ring is fixedly connected with a lower transverse rod and a lower longitudinal rod, the wall surfaces of the transverse rod and the lower longitudinal rod are provided with a plurality of first placing grooves, and the inner wall of the upper fixing ring is fixedly connected with an upper transverse rod and an upper longitudinal rod. A plurality of second placing grooves are formed in the wall surfaces of the upper transverse rod and the upper longitudinal rod, sliding rods are fixedly connected to the tops of the two ends of the lower fixing ring, a plurality of first limiting holes are formed in the sliding rods, the sliding rods are sleeved with sleeves, second limiting holes are formed in the wall surfaces of the sleeves, and inner cavities of the second limiting holes and the first limiting holes are in threaded connection with limiting screw rods; and the limiting screw rod is in threaded connection with a limiting nut. According to the utility model, through the cooperation of the sleeve, the sliding rod, the limiting screw rod, the limiting nut, the upper cross rod, the upper longitudinal rod and the second placing groove, the chassis part is fixed, so that the contact area with the chassis part is smaller, and the problem of local deformation or stress concentration is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment, in particular to a tool for heat treatment of the surface of an automobile chassis part. Background Art

[0002] With the continuous development of society, the automobile industry has developed rapidly. By heat treating the surface of the automobile chassis, the wear resistance of the chassis surface can be improved and its service life can be extended. This is very critical for the automobile chassis to face wear under various road conditions.

[0003] The application number CN202221674520.7 is retrieved and disclosed a heat treatment chassis tooling structure, including a chassis frame with a plurality of cavities, a telescopic member and a rotating rod frame, the rotating rod frame including a connecting disk body with a plurality of serrations on the outside, an active rotating shaft with meshing teeth on the top, and a supporting seat, the rotating rod frame is arranged on the lower side of the chassis frame and is fixedly connected to the chassis frame; the supporting seat is arranged on the lower side of the connecting disk body and is rotatably connected to the connecting disk body, the active rotating shaft is arranged on the outer side of the connecting disk body, and is meshed with the serrations of the connecting disk body through meshing teeth to drive the connecting disk body to rotate, and the connecting disk body is arranged on the lower side of the chassis frame. On the basis of the existing technology, the structure of the chassis tooling is improved, and the connecting disk body is driven to rotate by the meshing teeth by adding a rotating rod frame, thereby improving the heating uniformity of the workpiece.

[0004] In the above-mentioned prior art solution, during the heat treatment process, the contact area between the clamping limiting plate and the chassis is too large, resulting in that most of the contact area therewith cannot be fully heat treated, resulting in uneven temperature distribution during heat treatment, and the area on the surface of the chassis part in contact with the fixture may transfer or absorb heat unevenly, resulting in unsatisfactory surface hardening or quenching effects, and even problems such as local deformation or stress concentration.

[0005] Therefore, we propose a tool for surface heat treatment of automobile chassis parts. Utility Model Content

[0006] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a tool for heat treatment of the surface of automobile chassis parts.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a tool for surface heat treatment of automobile chassis parts, comprising a lower fixing ring and an upper fixing ring, the inner wall of the lower fixing ring is fixedly connected with a lower cross bar and a lower longitudinal bar, the wall surfaces of the cross bar and the lower longitudinal bar are provided with a plurality of first placement grooves, the inner wall of the upper fixing ring is fixedly connected with an upper cross bar and an upper longitudinal bar, the wall surfaces of the upper cross bar and the upper longitudinal bar are provided with a plurality of second placement grooves, the tops of both ends of the lower fixing ring are fixedly connected with sliding bars, the sliding bars are provided with a plurality of first limiting holes, the sliding bars are sleeved with sleeves, the wall surfaces of the sleeves are provided with second limiting holes, the second limiting holes and the inner cavities of the first limiting holes are threadedly connected with limiting screws, and the limiting screws are threadedly connected with limiting nuts.

[0008] Preferably, a fixed lifting ring is fixedly connected to the top where the upper horizontal rod and the upper longitudinal rod intersect.

[0009] Preferably, the lower cross bar and the lower longitudinal bar are fixedly connected in the inner cavity of the lower fixing ring in a cross shape, and the lower fixing ring, the lower cross bar and the lower longitudinal bar are all flat circular ring structures.

[0010] Preferably, the upper cross bar and the upper longitudinal bar are fixedly connected in the inner cavity of the upper fixing ring in a cross shape, and the upper fixing ring, the upper cross bar and the upper longitudinal bar are all flat circular ring structures.

[0011] Preferably, a plurality of first through holes are formed on the lower fixing ring, and the first through holes are circumferentially distributed on the lower fixing ring.

[0012] Preferably, a plurality of second through holes are formed on the upper fixing ring, and the second through holes are circumferentially distributed on the upper fixing ring.

[0013] Beneficial Effects

[0014] The utility model provides a tool for heat treatment of the surface of automobile chassis parts. It has the following beneficial effects:

[0015] (1) The tooling for heat treatment of the surface of automobile chassis parts places the chassis parts by cooperating the lower cross bar, the lower longitudinal bar and the first placement groove, and fixes the chassis parts by cooperating the sleeve, the slide bar, the limit screw, the limit nut and the upper cross bar, the upper longitudinal bar and the second placement groove, so that the contact area with the chassis parts is smaller, avoiding the problem of uneven heat absorption caused by the contact area of ​​the chassis parts being too large, and causing local deformation or stress concentration.

[0016] (2) The tooling for heat treatment of the surface of the automobile chassis parts can be conveniently lifted by fixing the lifting ring to facilitate heat treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a three-dimensional schematic diagram of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the disassembly of the slide rod and the sleeve of the utility model.

[0022] Legend:

[0023] 1. Lower fixing ring; 101. Lower cross bar; 102. Lower longitudinal bar; 103. First placement slot; 104. First through hole; 2. Upper fixing ring; 201. Upper cross bar; 202. Upper longitudinal bar; 203. Second placement slot; 204. Second through hole; 3. Sliding bar; 301. First limiting hole; 4. Sleeve; 401. Second limiting hole; 402. Limiting screw; 403. Limiting nut; 5. Fixed lifting ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: Tooling for heat treatment of automobile chassis parts surface, such as Figure 1-Figure 3As shown, it includes a lower fixing ring 1 and an upper fixing ring 2. The inner wall surface of the lower fixing ring 1 is fixedly connected with a lower cross bar 101 and a lower longitudinal bar 102 respectively. The lower cross bar 101 and the lower longitudinal bar 102 are fixedly connected in the inner cavity of the lower fixing ring 1 in a cross shape. The lower cross bar 101 and the lower longitudinal bar 102 are equidistantly provided with a plurality of first placement grooves 103 on the wall surface close to the upper fixing ring 2. The lower fixing ring 1, the lower cross bar 101 and the lower longitudinal bar 102 are all designed as a flat circular ring structure, and through the arrangement of a plurality of first placement grooves 103, The chassis is placed on the first placement groove 103 more firmly than on a flat surface, and the flat sheet design of the lower fixing ring 1, the lower cross bar 101 and the lower longitudinal bar 102 can reduce the possibility of the chassis sliding or moving. The lower fixing ring 1 is provided with a plurality of first through holes 104, which are circumferentially distributed on the lower fixing ring 1. The inner wall surface of the upper fixing ring 2 is fixedly connected with the upper cross bar 201 and the upper longitudinal bar 202, respectively. The upper cross bar 201 and the upper longitudinal bar 202 are fixedly connected to the inner wall of the upper fixing ring 2 in a cross shape. In the cavity, the upper cross bar 201 and the upper longitudinal bar 202 are provided with a plurality of second placement grooves 203 at equal distances on the wall surface close to the lower fixing ring 1. The upper fixing ring 2, the upper cross bar 201 and the upper longitudinal bar 202 are also flat circular ring structures. The upper fixing ring 2 is provided with a plurality of second through holes 204, and the second through holes 204 are distributed circumferentially on the upper fixing ring 2. The tops of both ends of the lower fixing ring 1 are fixedly connected with sliding rods 3, and the two sliding rods 3 are provided with a plurality of first limiting holes 301 at equal distances, and the two sliding rods 3 are both provided with sleeves. 4, the two sleeves 4 are fixedly connected to the outer wall of the upper fixing ring 2, and a second limiting hole 401 matched with the first limiting hole 301 is opened on the wall surface of the sleeve 4 near the bottom, and a limiting screw 402 is threadedly connected in the inner cavity of the second limiting hole 401 and one of the first limiting holes 301, and a limiting nut 403 is threadedly connected on the limiting screw 402, and a fixed lifting ring 5 is fixedly connected to the top of the center position where the upper cross bar 201 and the upper longitudinal bar 202 intersect, and the whole device can be lifted conveniently through the fixed lifting ring 5.

[0026] The working principle of this utility model:

[0027] When in use, the automobile chassis component is placed on the lower cross bar 101 and the lower longitudinal bar 102, the side of the chassis component is clamped in the first placement groove 103, and the sliding sleeve 4 moves the sleeve 4 closer to the lower fixing ring 1 until the second placement groove 203 opened on the upper cross bar 201 and the upper longitudinal bar 202 provided on the upper fixing ring 2 fits with the chassis. At this time, the limiting screw 402 is inserted into the inner cavity of the second limiting hole 401 and the first limiting hole 301, and the limiting nut 403 is tightened to fix the distance between the lower fixing ring 1 and the upper fixing ring 2, and then the chassis component is fixed, so that the contact area with the chassis component is smaller.

[0028] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] When in use, the entire device can be conveniently lifted by fixing the lifting ring 5 .

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Tooling for surface heat treatment of automobile chassis parts, characterized by: The invention comprises a lower fixing ring (1) and an upper fixing ring (2); the inner wall of the lower fixing ring is fixedly connected with a lower cross bar (101) and a lower longitudinal bar (102); the wall surfaces of the cross bar (101) and the lower longitudinal bar (102) are provided with a plurality of first placement grooves (103); the inner wall of the upper fixing ring (2) is fixedly connected with an upper cross bar (201) and an upper longitudinal bar (202); the wall surfaces of the upper cross bar (201) and the upper longitudinal bar (202) are provided with a plurality of second placement grooves (203); The tops of both ends of the lower fixing ring (1) are fixedly connected with sliding rods (3), a plurality of first limiting holes (301) are provided on the sliding rods (3), a sleeve (4) is sleeved on the sliding rods (3), a second limiting hole (401) is provided on the wall surface of the sleeve (4), the second limiting hole (401) and the inner cavity of the first limiting hole (301) are threadedly connected to a limiting screw (402), and the limiting screw (402) is threadedly connected to a limiting nut (403).

2. The tooling for heat treatment of automobile chassis parts surface according to claim 1, characterized in that: A fixed lifting ring (5) is fixedly connected to the top where the upper horizontal rod (201) and the upper longitudinal rod (202) intersect.

3. The tooling for heat treatment of automobile chassis parts surface according to claim 1, characterized in that: The lower cross bar (101) and the lower longitudinal bar (102) are fixedly connected in a cross shape in the inner cavity of the lower fixing ring (1); the lower fixing ring (1), the lower cross bar (101) and the lower longitudinal bar (102) are all flat circular ring structures.

4. The tooling for heat treatment of automobile chassis parts surface according to claim 1, characterized in that: The upper cross bar (201) and the upper longitudinal bar (202) are fixedly connected in a cross shape in the inner cavity of the upper fixing ring (2); the upper fixing ring (2), the upper cross bar (201) and the upper longitudinal bar (202) are all flat circular ring structures.

5. The tooling for heat treatment of automobile chassis parts surface according to claim 1, characterized in that: The lower fixing ring (1) is provided with a plurality of first through holes (104), and the first through holes (104) are distributed circumferentially on the lower fixing ring (1).

6. The tooling for heat treatment of automobile chassis parts surface according to claim 1, characterized in that: The upper fixing ring (2) is provided with a plurality of second through holes (204), and the second through holes (204) are distributed circumferentially on the upper fixing ring (2).

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