Tailor-welding tool for new energy forklift steering axle

Abstract

The tailor-welding tool for the steering axle of the new energy forklift comprises a bottom plate, a pair of V-shaped positioning mechanisms, a pair of taper sleeve core rod positioning mechanisms and a pair of web positioning mechanisms are installed on the bottom plate, and the pair of V-shaped positioning mechanisms are distributed on the front side and the rear side of the bottom plate. The taper sleeve core rod positioning mechanisms are distributed on the left side and the right side of the bottom plate, and the web positioning mechanisms are distributed on the two sides of the rear side V-shaped positioning mechanism. The V-shaped positioning mechanism comprises a V-shaped positioning seat fixedly mounted on the bottom plate, and a rotary pressing block is mounted at the top of the V-shaped positioning seat and used for limiting a shaft end plate of the steering axle in the V-shaped positioning seat. The tailor-welding tool is simple in structure, easy to use and capable of being flexibly adjusted, the workpiece tailor-welding efficiency can be improved through the tool structure, the consistency of the workpiece tailor-welding size can be guaranteed, and the product quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy forklift manufacturing, in particular to a welding fixture for the steering axle of a new energy forklift. Background Art

[0002] A new energy forklift uses a battery as the power source to drive the driving motor and the oil pressure system motor, so as to realize driving and loading / unloading operations. An electric forklift is a loading, unloading and handling vehicle powered by a DC power supply.

[0003] As a key component in a new energy forklift, the steering axle has an important structure and high welding strength requirements. If the manual scribing and assembling method is used, the product welding efficiency is low, the spot welding size consistency is poor, and the labor intensity of employees is high, which is not suitable for mass production. Summary of the Utility Model

[0004] In view of the above problems, the utility model provides a welding fixture for the steering axle of a new energy forklift, which is a welding fixture with a simple structure, easy to use and flexible to adjust. Using this fixture structure can improve the welding efficiency of workpieces, and can ensure the consistency of the welding size of workpieces, thus guaranteeing the product quality.

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

[0006] A welding fixture for the steering axle of a new energy forklift, comprising a bottom plate, on which a pair of V-shaped positioning mechanisms, a pair of taper sleeve core rod positioning mechanisms and a pair of web positioning mechanisms are installed. The pair of V-shaped positioning mechanisms are distributed on the front and rear sides of the bottom plate, the pair of taper sleeve core rod positioning mechanisms are distributed on the left and right sides of the bottom plate, and the pair of web positioning mechanisms are distributed on both sides of the rear V-shaped positioning mechanism;

[0007] The V-shaped positioning mechanism includes a V-shaped positioning seat fixedly installed on the bottom plate, and a rotating pressing block is installed on the top of the V-shaped positioning seat, and the rotating pressing block is used to limit the shaft end plate of the steering axle in the V-shaped positioning seat;

[0008] The taper sleeve core rod positioning mechanism includes a C-shaped main pin seat positioning seat fixedly installed on the bottom plate, and an upper positioning taper sleeve and a lower positioning taper sleeve for positioning a pair of main pin seats are installed on the C-shaped main pin positioning seat;

[0009] The web positioning mechanism includes a web positioning seat fixedly installed on the bottom plate, and a longitudinally adjustable push-pull shaft is installed on the top of the web positioning seat, and the end of the push-pull shaft is used to position the web.

[0010] Preferably, a plurality of cushion blocks are fixedly installed on the bottom plate, and the cushion blocks are used to support the bridge plate below the steering axle.

[0011] Preferably, one end of the rotary pressing block is rotatably connected to the corresponding end of the V-shaped positioning seat.

[0012] Preferably, a pair of die steel wear-resistant blocks adapted to the V-shaped positioning seat are fixed to the bottom of the rotary pressing block.

[0013] Preferably, a positioning hole is provided at the upper end of the C-shaped kingpin seat positioning seat. A mandrel is inserted into the positioning hole. The lower end of the mandrel extends into the C-shaped kingpin seat positioning seat. An upper positioning cone sleeve is sleeved on the upper section of the mandrel, and a lower positioning cone sleeve is sleeved on the extended section of the mandrel. Main pin seat positioning bushings are fixedly installed at both the upper and lower ends of the C-shaped kingpin seat positioning seat. The main pin seat positioning bushings at the upper and lower ends respectively fit the upper positioning cone sleeve and the lower positioning cone sleeve.

[0014] Preferably, a longitudinal limiting port for the push-pull shaft to pass through is provided at the top of the web positioning seat. Locking ports are provided at both the longitudinal limiting port and the top of the rotary pressing block. A locking bolt is threadedly connected in the locking port.

[0015] The beneficial effects of the present utility model are as follows:

[0016] This welding fixture is applicable to the efficient and batch welding of the steering bridge of a 3.5t new energy forklift. By adopting the method of sectional positioning and manual mechanical locking, the best positioning accuracy can be obtained, the efficiency is relatively high, and the structure is simple and easy to manufacture. Secondly, this fixture can ensure the stability of the welding of the steering bridge of the 3.5t new energy forklift, thereby improving the consistency of the welding dimensions. Brief Description of the Drawings

[0017] Figure 1 is a structural schematic diagram of the present utility model;

[0018] Figure 2 is a structural schematic diagram of the steering bridge proposed by the present utility model;

[0019] Figure 3 is a schematic diagram of the welding state of the present utility model.

[0020] In the figure: 1 bottom plate, 2 V-shaped positioning seat, 3 rotary pressing block, 4 C-shaped kingpin seat positioning seat, 5 kingpin seat positioning bushing, 6 mandrel, 7 upper positioning cone sleeve, 8 web positioning seat, 9 push-pull shaft, 10 spacer block, 11 lower positioning cone sleeve, 12 locking port, 13 lower bridge plate, 14 kingpin seat, 15 shaft end plate, 16 web. Detailed Embodiments

[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0022] 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 also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0023] Referring to Figures 1 - 3 , a welding fixture for a new energy forklift steering axle, including a bottom plate 1, on which a pair of V-shaped positioning mechanisms, a pair of taper sleeve mandrel positioning mechanisms, and a pair of web positioning mechanisms are installed. The pair of V-shaped positioning mechanisms are distributed on the front and rear sides of the bottom plate 1, the pair of taper sleeve mandrel positioning mechanisms are distributed on the left and right sides of the bottom plate 1, and the pair of web positioning mechanisms are distributed on both sides of the rear V-shaped positioning mechanism.

[0024] The V-shaped positioning mechanism includes a V-shaped positioning seat 2 fixedly installed on the bottom plate 1. A rotating pressing block 3 is installed on the top of the V-shaped positioning seat 2. One end of the rotating pressing block 3 is rotatably connected to the corresponding end of the V-shaped positioning seat 2. A pair of die steel wear-resistant blocks adapted to the V-shaped positioning seat 2 are fixed to the bottom of the rotating pressing block 3. The rotating pressing block 3 is used to limit the shaft end plate 15 of the steering axle within the V-shaped positioning seat 2, and the pair of die steel wear-resistant blocks abut against both sides of the shaft end plate 15.

[0025] The taper sleeve mandrel positioning mechanism includes a C-shaped kingpin seat positioning seat 4 fixedly installed on the bottom plate 1. An upper positioning taper sleeve 7 and a lower positioning taper sleeve 11 for positioning a pair of kingpin seats 14 are installed on the C-shaped kingpin positioning seat 4. A positioning hole is provided at the upper end of the C-shaped kingpin seat positioning seat 4, and a mandrel 6 is inserted into the positioning hole. The lower end of the mandrel 6 extends into the C-shaped kingpin seat positioning seat 4. The upper positioning taper sleeve 7 is sleeved on the upper section of the mandrel 6, and the extended section of the mandrel 6 is sleeved with the lower positioning taper sleeve 11. Kingpin seat positioning bushings 5 are fixedly installed at both the upper and lower ends of the C-shaped kingpin seat positioning seat 4, and the upper and lower kingpin seat positioning bushings 5 respectively match the upper positioning taper sleeve 7 and the lower positioning taper sleeve 11.

[0026] The web positioning mechanism includes a web positioning seat 8 fixedly installed on the bottom plate 1. At the top of the web positioning seat 8, a longitudinally adjustable push-pull shaft 9 is installed. The end of the push-pull shaft 9 is used to position and place the web 16. Push the push-pull shaft 9, insert its end into the plate hole of the web 16, and lock it in position through a locking bolt.

[0027] Furthermore, a plurality of cushion blocks 10 are fixedly installed on the bottom plate 1, and the cushion blocks 10 are used to support the bridge plate 13 under the steering axle.

[0028] Furthermore, at the top of the web positioning seat 8, there is a longitudinal limiting port for the push-pull shaft 9 to pass through. Locking ports 12 are provided at the top of both the longitudinal limiting port and the rotary pressing block 3. A locking bolt is threadedly connected in the locking port 12. By rotating the locking bolt, the push-pull shaft 9 or the shaft end plate 15 can be tightened.

[0029] The main body of the upper steering axle welding fixture is formed by welding, machining, and assembly. Parts such as the V-shaped positioning seat 2, rotary pressing block 3, die steel wear-resistant block, positioning bushing, core rod 6, positioning cone sleeve, positioning seat bushing 5, and push-pull shaft 9 are respectively installed on each mechanism. During welding, the lower bridge plate 13 of the steering axle is first placed on a plurality of cushion blocks 10, and then 4 kingpin seats 14 are placed on the corresponding kingpin seat positioning bushings 5. Insert the core rod 6 into the positioning hole, and the upper positioning cone sleeve 7 cooperates with the upper kingpin seat positioning bushing 5 for positioning. Then, the lower positioning cone sleeve 11 is sleeved on the extended end of the core rod 6 and cooperates with the lower kingpin seat positioning bushing 5 for positioning. Then, place the shaft end plate 15 on the V-shaped positioning seat 2, rotate the rotary pressing block 3 and lock it. Then, place the web 16, push the push-pull shaft 9, insert its end into the plate hole of the web 16, and lock it in position through a locking bolt. After that, perform welding, and finally place the upper bridge plate 13 and perform group welding. Thus, the welding of the steering axle is completed.

[0030] This welding fixture is suitable for the efficient and batch welding of the steering axles of 3.5t new energy forklifts. By adopting the method of partial positioning and manual mechanical locking, the best positioning accuracy can be obtained, the efficiency is relatively high, and the structure is simple and easy to manufacture. Secondly, this fixture can ensure the stability of the welding of the steering axles of 3.5t new energy forklifts, thereby improving the consistency of the welding dimensions.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A welding fixture for a steering axle of a new energy forklift, including a bottom plate (1), characterized in that, A pair of V-shaped positioning mechanisms, a pair of taper sleeve mandrel positioning mechanisms and a pair of web positioning mechanisms are installed on the bottom plate (1). The pair of V-shaped positioning mechanisms are distributed on the front and rear sides of the bottom plate (1), the pair of taper sleeve mandrel positioning mechanisms are distributed on the left and right sides of the bottom plate (1), and the pair of web positioning mechanisms are distributed on both sides of the rear V-shaped positioning mechanism; The V-shaped positioning mechanism includes a V-shaped positioning seat (2) fixedly installed on the bottom plate (1). A rotary pressing block (3) is installed on the top of the V-shaped positioning seat (2). The rotary pressing block (3) is used to limit the shaft end plate (15) of the steering axle in the V-shaped positioning seat (2); The taper sleeve mandrel positioning mechanism includes a C-shaped kingpin seat positioning seat (4) fixedly installed on the bottom plate (1). An upper positioning taper sleeve (7) and a lower positioning taper sleeve (11) for positioning a pair of kingpin seats (14) are installed on the C-shaped kingpin seat positioning seat (4); The web positioning mechanism includes a web positioning seat (8) fixedly installed on the bottom plate (1). A longitudinally adjustable push-pull shaft (9) is installed on the top of the web positioning seat (8). The end of the push-pull shaft (9) is used to position the web (16).

2. The welding fixture for the steering bridge of a new energy forklift according to claim 1, wherein A plurality of cushion blocks (10) are fixedly installed on the bottom plate (1). The cushion blocks (10) are used to support the lower bridge plate (13) of the steering axle.

3. The welding fixture for the steering bridge of a new energy forklift according to claim 1, characterized in that One end of the rotary pressing block (3) is rotatably connected to the corresponding end of the V-shaped positioning seat (2).

4. A welding fixture for a new energy forklift steering axle according to claim 1, characterized in that, A pair of die steel wear-resistant blocks adapted to the V-shaped positioning seat (2) are fixed to the bottom of the rotary pressing block (3).

5. A welding fixture for a new energy forklift steering axle according to claim 1, characterized in that, A positioning hole is provided at the upper end of the C-shaped kingpin seat positioning seat (4). A mandrel (6) is inserted into the positioning hole. The lower end of the mandrel (6) extends into the C-shaped kingpin seat positioning seat (4). An upper positioning taper sleeve (7) is sleeved on the upper section of the mandrel (6), and a lower positioning taper sleeve (11) is sleeved on the extended section of the mandrel (6). Kingpin seat positioning bushings (5) are fixedly installed at both the upper and lower ends of the C-shaped kingpin seat positioning seat (4). The upper and lower kingpin seat positioning bushings (5) are respectively adapted to the upper positioning taper sleeve (7) and the lower positioning taper sleeve (11).

6. A welding fixture for a new energy forklift steering axle according to claim 1, characterized in that, A longitudinal limiting port for the push-pull shaft (9) to pass through is provided at the top of the web positioning seat (8). Locking ports (12) are provided at both the longitudinal limiting port and the top of the rotary pressing block (3). Locking bolts are threadedly connected in the locking ports (12).

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