Auxiliary welding clamp

Abstract

The utility model relates to the technical field of welding processing, in particular to an auxiliary welding clamp. Comprising a clamp bottom plate, a positioning shaft, a bottom tray and a top pressing plate, the clamp bottom plate is made of a square structure steel plate, a round hole is formed in the center of the clamp bottom plate, the bottom tray is arranged on the clamp bottom plate and is of a round steel plate structure, and the circle center of the bottom tray and the round hole in the clamp bottom plate are concentrically arranged; the positioning shaft penetrates through the clamp bottom plate and the bottom tray, and the top pressing disc is arranged on the positioning shaft in a sleeving mode. According to the device, all parts in the hub are positioned and clamped by the clamp, and welding deformation is strictly controlled by welding on the clamp. The welding auxiliary clamp is mainly applied to the aspect of welding auxiliary clamps.

Description

Technical Field

[0001] This utility model relates to the field of welding processing technology, and more specifically, to a welding auxiliary fixture. Background Technology

[0002] Traditional wheel hub welding fixtures have several shortcomings. For example, some fixtures are poorly designed, causing wheel hubs to easily deform or be damaged during clamping, thus affecting the welding effect and the overall performance of the wheel hub. Furthermore, some fixtures are cumbersome to operate, requiring significant manpower and time, reducing production efficiency. Additionally, some fixtures lack versatility, only applicable to specific wheel hub models or specifications, limiting their application range.

[0003] After the wheel hub is welded, the relative positions of all parts must be strictly guaranteed, including concentricity not exceeding 1 and perpendicularity not exceeding 1. Existing wheel hub welding fixtures still have some shortcomings, such as unstable clamping force, inconvenient operation, and limited adaptability. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a welding auxiliary fixture. The use of this auxiliary fixture greatly improves production efficiency and strictly guarantees the various precision requirements and product quality of the finished product.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A welding auxiliary fixture includes a fixture base plate, a positioning shaft, a bottom tray, and a top pressure plate. The fixture base plate is made of a square steel plate with a circular hole at its center. The bottom tray is mounted on the fixture base plate and is made of a circular steel plate. The center of the bottom tray is concentric with the circular hole on the fixture base plate. The positioning shaft passes through the fixture base plate and the bottom tray. The top pressure plate is sleeved on the positioning shaft.

[0007] A limit block is provided on the positioning shaft, and a positioning sleeve is movably sleeved on the upper part of the positioning shaft of the limit block, with the bottom outer edge of the positioning sleeve protruding.

[0008] After the bottom of the positioning shaft passes through the circular hole of the fixture base plate, it is fixed to the fixture base plate by mounting screws. A screw washer is provided between the mounting screw and the bottom of the fixture base plate.

[0009] The top of the positioning shaft is provided with a threaded section, the diameter of which is smaller than that of the positioning shaft. The center of the top pressure plate is provided with a positioning hole, and the top pressure plate is fitted onto the threaded section through the positioning hole. A clamping nut matching the threaded section is provided on the top pressure plate, and a washer is provided between the clamping nut and the top pressure plate.

[0010] The clamp base plate is symmetrically provided with clamping pieces, which are fixed to the clamp base plate by positioning bolts.

[0011] The fixture base plate is provided with adjusting screw holes that match the positioning bolts, and there are multiple sets of adjusting screw holes in the straight direction.

[0012] A support column is provided on the lower surface of the fixture base plate, and a base plate handle is symmetrically provided on the upper surface of the fixture base plate.

[0013] The top pressure plate is symmetrically equipped with pressure plate handles.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The flexible assembly and disassembly of each component in this device allows for welding operations on various wheel hub models. A bottom tray of matching diameter is selected based on the wheel hub size to hold it. The positioning shaft and positioning sleeve limit the wheel hub's position, and together with the clamping plates, they clamp and position the hub for easy welding. Adjustable screw holes allow for easy adjustment of the clamping plate position according to different wheel hub sizes. The top pressure plate and clamping nut ensure the wheel hub is clamped and limited, preventing displacement during welding. This device achieves the positioning and clamping of all parts within the wheel hub using fixtures, and by welding on these fixtures, welding deformation is strictly controlled. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the present invention;

[0017] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 This is a top view of the bottom of the clamp in this utility model;

[0020] Figure 5 This is a schematic diagram of the top pressure plate in this utility model;

[0021] In the diagram: 1 is the fixture base plate, 2 is the support column, 3 is the base plate handle, 4 is the positioning shaft, 5 is the threaded section, 6 is the limit block, 7 is the positioning sleeve, 8 is the bottom tray, 9 is the top pressure plate, 10 is the positioning hole, 11 is the pressure plate handle, 12 is the clamping nut, 13 is the washer, 14 is the mounting screw, 15 is the screw washer, 16 is the clamping piece, 17 is the positioning bolt, 18 is the adjustment screw hole, and 19 is the wheel hub. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0024] like Figures 1 to 5 As shown, a welding auxiliary fixture includes a fixture base plate 1, a positioning shaft 4, a bottom tray 8, and a top pressure plate 9. The fixture base plate 1 is made of a square steel plate with a circular hole at the center. The bottom tray 8 is set on the fixture base plate 1 and is made of a circular steel plate. The center of the bottom tray 8 is concentric with the circular hole on the fixture base plate 1. The positioning shaft 4 passes through the fixture base plate 1 and the bottom tray 8. The top pressure plate 9 is sleeved on the positioning shaft 4.

[0025] Preferably, a limiting block 6 is provided on the positioning shaft 4, and a positioning sleeve 7 is movably sleeved on the positioning shaft 4 above the limiting block 6, with the bottom outer edge of the positioning sleeve 7 protruding.

[0026] Preferably, after the bottom of the positioning shaft 4 passes through the round hole of the fixture base plate 1, it is fixed to the fixture base plate 1 by mounting screws 14, and a screw washer 15 is provided between the mounting screws 14 and the bottom of the fixture base plate 1.

[0027] Preferably, the top of the positioning shaft 4 is provided with a threaded section 5, the diameter of the threaded section 5 is smaller than that of the positioning shaft 4, the center of the top pressure plate 9 is provided with a positioning hole 10, the top pressure plate 9 is sleeved on the threaded section 5 through the positioning hole 10, the top pressure plate 9 is provided with a clamping nut 12 that matches the threaded section 5, and a washer 13 is provided between the clamping nut 12 and the top pressure plate 9.

[0028] Preferably, clamping pieces 16 are symmetrically arranged on the fixture base plate 1, and the clamping pieces 16 are mounted on the fixture base plate 1 by positioning bolts 17.

[0029] Preferably, the fixture base plate 1 is provided with adjusting screw holes 18 that match the positioning bolts 17, and multiple sets of adjusting screw holes 18 are provided in the straight direction.

[0030] Preferably, a support column 2 is provided on the lower surface of the fixture base plate 1, and a base plate handle 3 is symmetrically provided on the upper surface of the fixture base plate 1.

[0031] Preferably, pressure plate handles 11 are symmetrically arranged on the top pressure plate 9.

[0032] In use, the bottom tray 8 is placed sequentially on the fixture base plate 1, and the positioning shaft 4 and positioning sleeve 7 are inserted and locked to the fixture base plate 1 by the mounting screws 14. Then, the wheel hub 19 product parts are loaded in sequence: wheel hub ring, inner wheel hub, outer wheel hub, support sleeve, toothed plate, etc. Then, according to the wheel hub ring size, the clamping plate 16 is installed and fixed in the corresponding adjusting screw hole 18. In this way, the clamping plate 16 is used to position and clamp each part, and welding deformation is strictly controlled by welding on the clamping plate 16.

[0033] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model, and all such changes should be included within the protection scope of the present utility model.

Claims

1. A welding auxiliary fixture, characterized in that: The fixture includes a base plate (1), a positioning shaft (4), a bottom tray (8), and a top pressure plate (9). The base plate (1) is made of a square steel plate with a circular hole at the center. The bottom tray (8) is set on the base plate (1) and is made of a circular steel plate. The center of the bottom tray (8) is concentric with the circular hole on the base plate (1). The positioning shaft (4) passes through the base plate (1) and the bottom tray (8). The top pressure plate (9) is sleeved on the positioning shaft (4).

2. The welding auxiliary fixture according to claim 1, characterized in that: A limiting block (6) is provided on the positioning shaft (4), and a positioning sleeve (7) is movably sleeved on the positioning shaft (4) above the limiting block (6), with the bottom outer edge of the positioning sleeve (7) protruding.

3. The welding auxiliary fixture according to claim 1, characterized in that: After the bottom of the positioning shaft (4) passes through the round hole of the fixture base plate (1), it is fixed to the fixture base plate (1) by the mounting screw (14). A screw washer (15) is provided between the mounting screw (14) and the bottom of the fixture base plate (1).

4. The welding auxiliary fixture according to claim 1, characterized in that: The top of the positioning shaft (4) is provided with a threaded section (5), the diameter of the threaded section (5) is smaller than that of the positioning shaft (4), the center of the top pressure plate (9) is provided with a positioning hole (10), the top pressure plate (9) is sleeved on the threaded section (5) through the positioning hole (10), the top pressure plate (9) is provided with a clamping nut (12) that matches the threaded section (5), and a washer (13) is provided between the clamping nut (12) and the top pressure plate (9).

5. A welding auxiliary fixture according to claim 1, characterized in that: The clamp base plate (1) is symmetrically provided with clamping pieces (16), and the clamping pieces (16) are set on the clamp base plate (1) by positioning bolts (17).

6. A welding auxiliary fixture according to claim 5, characterized in that: The fixture base plate (1) is provided with adjusting screw holes (18) that match the positioning bolts (17), and there are multiple sets of adjusting screw holes (18) in the straight direction.

7. A welding auxiliary fixture according to claim 1, characterized in that: The lower surface of the clamp base plate (1) is provided with a support column (2), and the upper surface of the clamp base plate (1) is symmetrically provided with base plate handles (3).

8. A welding auxiliary fixture according to claim 1, characterized in that: The top pressure plate (9) is symmetrically provided with pressure plate handles (11).

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