Universal welding fixture base plate

Abstract

The utility model discloses a general welding fixture bottom plate, its characteristics is, including bottom plate, positioning sleeve, positioning pin, compression nut, the equidistant array hole is processed on the bottom plate, and positioning pin and positioning sleeve clearance fit together insert the equidistant array hole of bottom plate, and the positioning effect is started, utilize the principle of expansion bolt, and the compression nut is tightened to make the end expansion of positioning sleeve and the bevel of positioning pin and fit, and the equidistant array hole of expansion props up bottom plate, and the compression effect is started, and the equidistant array hole on bottom plate satisfies the function of the size of the welding fixture positioning piece of infinite adjustment, and the welding fixture positioning piece is connected with the welding fixture bottom plate through positioning pin, positioning sleeve, guarantees the positioning and compression effect, simple structure, positioning is reliable, and adjustment is quick, realizes the quick, accurate assembly welding piece on general welding fixture bottom plate.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a general welding fixture base plate for assembling and welding various types of small batches of structural parts. Background Technology

[0002] Currently, most small parts such as leaf spring seats and reaction rod brackets of heavy truck drive axles are connected to the drive axle body by welding. Because the products are customized according to customer requirements, there are many varieties and small quantities of products. Changes in customer requirements lead to large variations in the size of small parts. Usually, in order to ensure the welding accuracy of small parts, multiple sets of welding fixtures need to be prepared. The base plate of the welding fixture is fixed to the positioning parts by bolts. Each product has a different base plate. The non-interchangeability of the base plates leads to resource waste. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a universal welding fixture base plate that can meet the requirements of assembling and welding multiple types and small batches of structural parts on a single base plate.

[0004] The technical solution provided by this utility model is: a general welding fixture base plate, characterized in that it includes a base plate, a positioning pin, a positioning sleeve, and a clamping nut; the base plate is provided with equidistant array holes in its longitudinal and transverse directions; the bottom end of the positioning sleeve is provided with four U-shaped opening slots, and the positioning pin is fitted inside the positioning sleeve with a clearance fit; the clamping nut is connected to the positioning pin and the positioning sleeve as a whole, and the clamping nut is located above the positioning pin; the combination of the positioning pin, the positioning sleeve, and the clamping nut is placed in the equidistant array holes, and the positioning pin is inserted into the base plate through the clearance fit between the outer circle of the positioning sleeve and the equidistant array holes.

[0005] Furthermore, the clamping nut is connected to the locating pin and locating sleeve by threads to form a whole.

[0006] The beneficial effects of this utility model are as follows: 1. The equidistant array of holes on the base plate allows for infinite adjustment of the size of the welding fixture positioning component; 2. Utilizing the principle of expansion bolts, the welding fixture positioning component is connected to the welding fixture base plate via positioning pins and positioning sleeves, ensuring positioning and clamping effects; 3. It meets the requirements for assembling and welding multiple varieties and small batches of structural components on a single base plate; 4. Positioning, clamping, and adjustment are convenient and reliable; 5. High spot fixing accuracy and good consistency; 6. It avoids welding temporary supports on the platform, ensuring platform cleanliness and preventing platform deformation. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the structure of this utility model;

[0008] Figure 2 This is a schematic diagram of the positioning sleeve structure of this utility model;

[0009] Figure 3 This is a schematic diagram of the positioning pin structure of this utility model.

[0010] In the diagram, 1 is the base plate, 2 is the locating pin, 3 is the locating sleeve, 4 is the clamping nut, 5 is the equidistant array of holes, and 6 is the U-shaped opening groove. Detailed Implementation

[0011] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings.

[0012] like Figure 1 , 2 As shown in Figures 1 and 3, a general welding fixture base plate includes a base plate 1, a positioning pin 2, a positioning sleeve 3, and a clamping nut 4.

[0013] The base plate 1 is made of steel plate. Equidistant array holes 5 are machined in the longitudinal and transverse directions of the base plate 1 for clearance fit connection with the positioning sleeve 3. Four U-shaped opening slots 6 are machined at the bottom of the positioning sleeve 3, and positioning pins 2 are fitted into them through clearance fit. The clamping nut 4 is connected to the positioning pin 2 and positioning sleeve 3 by threads to form a whole. The assembly of positioning pin 2, positioning sleeve 3 and clamping nut 4 is inserted into the equidistant array holes 5. The positioning pin 2 is inserted into the base plate 1 through the clearance fit between the outer circle of the positioning sleeve 3 and the equidistant array holes 5, which satisfies the function of infinitely adjusting the size of the welding fixture positioning parts and positioning. Using the principle of expansion bolts, tightening the clamping nut 4 causes the end of the positioning sleeve 3 to expand and fit against the bottom inclined surface of the positioning pin 2, expanding and supporting the equidistant array holes 5 on the base plate 1, which plays a clamping role.

[0014] This utility model discloses a universal welding fixture base plate, which allows for the assembly welding of multiple types of small-batch structural components on a single base plate. The base plate primarily serves a supporting function, providing a reference plane for the assembly welding of structural components. The welding fixture positioning components move longitudinally and laterally along the platform through equidistant array holes in the base plate, ensuring the positioning dimensions of the structural components. Simultaneously, utilizing the principle of expansion bolts, the positioning pins and positioning sleeves are connected to the welding fixture base plate through clearance fit and threaded connection, achieving the purpose of pressing to ensure that the structural components are in close contact with the reference plane and to guarantee dimensional accuracy. During operation:

[0015] (1) Arrange the structural components roughly on the platform according to the required shape;

[0016] (2) Move the welding fixture positioning parts along the longitudinal and transverse directions of the base plate to a position close to the approximate location of the structural component;

[0017] (3) The positioning sleeve 3 is fitted into the positioning pin 2 with a clearance fit, and the clamping nut 4 is connected to the positioning pin 2 and the positioning sleeve 3 by threads to form a whole;

[0018] (4) Align the positioning hole of the welding fixture with the equidistant array hole 5 of the base plate, and insert the positioning pin 2, positioning sleeve 3, and clamping nut 4 into the positioning hole of the welding fixture through the clearance fit between the outer circle of the positioning sleeve 3 and the equidistant array hole 5.

[0019] (5) Tighten the clamping nut 4 to expand the end of the positioning sleeve 3 and fit against the inclined surface of the positioning pin 2 to support the equidistant array holes 5 on the base plate 1, thereby achieving the function of clamping and positioning.

[0020] It should be understood that any technical features not elaborated in detail in this specification belong to the prior art. Although the embodiments of this patent have been described, this patent is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this patent without departing from the spirit and scope of protection of the claims, and these all fall within the scope of protection of this patent.

Claims

1. A universal welding fixture base plate, characterized in that, The system includes a base plate (1), a positioning pin (2), a positioning sleeve (3), and a clamping nut (4). The base plate (1) has equidistant array holes (5) in its longitudinal and transverse directions. The positioning sleeve (3) has four U-shaped opening slots (6) at its bottom end. The positioning pin (2) is fitted inside the positioning sleeve (3) with a clearance fit. The clamping nut (4) is connected to the positioning pin (2) and the positioning sleeve (3) as a whole. The clamping nut (4) is located above the positioning pin (2). The combination of the positioning pin (2), the positioning sleeve (3), and the clamping nut (4) is placed in the equidistant array holes (5). The positioning pin (2) is inserted into the base plate (1) through the clearance fit between the outer circle of the positioning sleeve (3) and the equidistant array holes (5).

2. The universal welding fixture base plate according to claim 1, characterized in that, The clamping nut (4) is connected to the positioning pin (2) and the positioning sleeve (3) by threads to form a whole.

Images