A single joint D type sleeve and chain piece welding auxiliary tool

Abstract

The utility model relates to chain welding fixture technical field, concretely is a kind of welding auxiliary frock of single section D type sleeve and chain piece, including D type sleeve, two chain pieces, clamping mechanism and the top pressure plate being set on clamping mechanism, and D type sleeve and two chain pieces are preassembled in clamping mechanism;The clamping mechanism includes the supporting plate, and the base is fixedly installed on the supporting plate, two limit holes are arranged in the inside of the base support, and two the inner pressure plate is movably installed in the limit hole respectively. By preassembling base support and supporting plate on workbench, with supporting plate as carrier, and movably installing two inner pressure plates in supporting plate, the pre-clamping of two inner pressure plates and cover plate is controlled by using spanner to adjust first screw rod and second screw rod, after top pressure plate is continuously dropped under pressure, the D type tower cylinder and two chain pieces of pre-clamping can be accurately clamped, further enhance the compression strength between D type sleeve and two chain pieces.

Description

Technical Field

[0001] This utility model relates to the field of chain welding fixture technology, specifically a welding auxiliary tooling for a single-section D-type sleeve and chain piece. Background Technology

[0002] Chains are mainly divided into bushing roller chains, forged chains, and welded bent plate chains. Among them, welded bent plate chains require pre-welding of bushings and chain pieces with specific structures. Therefore, it is essential to use effective auxiliary tooling in the processing of welded bent plate chains.

[0003] Unlike welding conventional round sleeves and chain links, the irregular shape of the D-type sleeve makes it difficult to achieve precise positioning and pre-clamping with conventional fixtures during welding with two chain links. Furthermore, the pressure changes caused by the angle of the welding torch can lead to misalignment of the D-type sleeve between the two chain links.

[0004] In view of this, a welding auxiliary tooling for a single-section D-type sleeve and chain link was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: A welding auxiliary fixture for a single-section D-type sleeve and chain links includes a D-type sleeve, two chain links, a clamping mechanism, and a top pressure plate mounted on the clamping mechanism. The D-type sleeve and two chain links are pre-installed in the clamping mechanism. The clamping mechanism includes a support plate with a base fixedly mounted on it. The support plate has two limiting holes, and an inner pressure plate is movably installed in each of the two limiting holes. A chuck is fixedly installed on the inner side of the inner pressure plate. A second lead screw is movably installed inside the support plate, and a pad is threaded onto the second lead screw. Two levers are movably connected to the pad, and a spring is provided on the outside of the second lead screw. The top pressure plate is movably installed outside the second lead screw, and the spring is pressed between the pad and the top pressure plate.

[0007] In a preferred embodiment, the present invention can be further configured such that a base support is fixedly installed at the bottom of the tray, and the base support has two slots inside.

[0008] In a preferred embodiment, the present invention can be further configured as follows: a first lead screw is threaded onto the internal part of the support plate; a pressure plate is movably mounted on the top end of the first lead screw; a shaft is inserted into the bottom end of the pressure plate; a column head is provided on the outside of the pressure plate; a compression spring is fixedly mounted on the outer end of the column head; a guide rod is movably mounted inside the column head; a cover plate is fixedly mounted on the outer end of the guide rod; a washer is fixedly mounted on the inner end of the guide rod; and the other end of the compression spring rests on the washer.

[0009] In a preferred embodiment, the present invention can be further configured such that: two limiting rods are fixedly installed on the cover plate, and the two limiting rods are adapted to penetrate into the base.

[0010] In a preferred embodiment, the present invention can be further configured such that: a vertical groove is provided on the back of the base, and the shaft is adapted to pass through the vertical groove.

[0011] In a preferred embodiment, the present invention can be further configured such that: the pallet has rectangular grooves in two sections facing the two inner pressure plates.

[0012] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. This utility model pre-installs a base and a tray on a workbench, uses the tray as a carrier, and movably installs two inner pressure plates inside the tray. By using a wrench to adjust the first and second lead screws, the pre-clamping of the two inner pressure plates and the cover plate is controlled. As the top pressure plate continues to descend under pressure, the pre-clamped D-shaped tower and the two chain links can be accurately clamped, further enhancing the compressive strength between the D-shaped sleeve and the two chain links. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the use of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the clamping mechanism of this utility model; Figure 4 This utility model Figure 3 A partial diagram of the explosion.

[0014] Figure label: 100. D-type sleeve; 200. Chain link; 300 Clamping mechanism; 310 Base support; 3101 Support plate; 3102 Limiting hole; 320 First lead screw; 330 Second lead screw; 340 Spring; 350 Inner pressure plate; 3501 Chuck; 360 Pad; 3601 Lever arm; 370 Base; 380 Cover plate; 3801 Guide rod; 3802 Washer; 3803 Limiting rod; 390 Pressure plate; 3901 Shaft; 3902 Column head; 3903 Compression spring; 400. Top pressure plate. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0016] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0017] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a welding auxiliary tooling for a single-section D-type sleeve and chain links.

[0018] Example 1: Combination Figures 1 to 4 As shown, the present invention provides a welding auxiliary tooling for a single-section D-type sleeve and chain links, including a D-type sleeve 100, two chain links 200, a clamping mechanism 300, and a top pressure plate 400 disposed on the clamping mechanism 300. The D-type sleeve 100 and the two chain links 200 are pre-installed in the clamping mechanism 300. The clamping mechanism 300 is used to quickly calibrate and clamp the D-type sleeve 100 and the two chain links 200. The top pressure plate 400 is used to further pressurize and fix the calibrated D-type sleeve 100.

[0019] The clamping mechanism 300 includes a support plate 3101, a base 370 fixedly mounted on the support plate 3101, two limiting holes 3102 opened inside the support plate 3101, an inner pressure plate 350 movably mounted in the two limiting holes 3102 respectively, a chuck 3501 fixedly mounted on the inner side of the inner pressure plate 350, a second lead screw 330 movably mounted inside the support plate 3101, a pad 360 threaded on the second lead screw 330, two lever arms 3601 movably connected on the pad 360, and a spring 340 provided on the outside of the second lead screw 330. The bottom of the tray 3101 is fixedly installed with a base support 310, and the base support 310 has two slots inside. Rectangular grooves are provided in two sections of the support plate 3101 facing the two inner pressure plates 350; The top pressure plate 400 is movably installed outside the second lead screw 330, and the spring 340 is pressed between the pad 360 and the top pressure plate 400.

[0020] Use bolts or expansion bolts to fix the base 310 to the selected workbench until the support plate 3101 is parallel to the workbench. Then rotate the second lead screw 330. As the second lead screw 330 reverses, the pad 360 will descend along the threaded section of the second lead screw 330. The two lever arms 3601, which are pressed and stretched outward by the pad 360, will push the two inner pressure plates 350 to quickly clamp the two chain pieces 200 after placement, and insert the D-type sleeve 100 along the reserved gap between the base 370 and the top pressure plate 400. Once the D-type sleeve 100 and the two chain links 200 are precisely clamped, the fixture allows workers to quickly weld the joint of the D-type sleeve 100 and the two chain links 200. At the same time, it provides sufficient compressive support to the joint, avoiding the risk of misalignment between the D-type sleeve 100 and the two chain links 200 caused by changes in the welding torch angle and pressure.

[0021] Example 2: Combination Figure 3 and Figure 4 As shown, in the above embodiment, a first lead screw 320 is installed on the internal thread of the support plate 3101. A pressure plate 390 is movably installed on the top end of the first lead screw 320. A shaft 3901 is inserted into the bottom end of the pressure plate 390. A column head 3902 is provided on the outside of the pressure plate 390. A compression spring 3903 is fixedly installed on the outer end of the column head 3902. A guide rod 3801 is movably installed inside the column head 3902. A cover plate 380 is fixedly installed on the outer end of the guide rod 3801. A gasket 3802 is fixedly installed on the inner end of the guide rod 3801. The other end of the compression spring 3903 is pressed on the gasket 3802. The back of the base 370 has a vertical groove, and the shaft 3901 is adapted to pass through the vertical groove; Two limiting rods 3803 are fixedly installed on the cover plate 380, and the two limiting rods 3803 are adapted to penetrate into the base 370.

[0022] Preferably, the base 370 has a cylindrical hole in the middle, and the pressure plate 390 has a slide rail inside. As the first lead screw 320 is rotated, the lifting of the first lead screw 320 will also drive the pressure plate 390 to lift relative to it. The column head 3902 and the compression spring 3903 after being squeezed by the pressure plate 390 will exert lateral pressure on the gasket 3802, the guide rod 3801 and the cover plate 380. Finally, the D-shaped sleeve 100 inserted into the gap between the top pressure plate 400 and the base 370 can be further locked and fixed. After the D-type sleeve 100 is centered and fixed by the cover plate 380, the base 370 and the top pressure plate 400, the two chain pieces 200 at both ends of the D-type sleeve 100 will not shake or misalign when pressed by the welding gun or welding wire.

[0023] The working principle and usage process of this utility model are as follows: The base support 310 is fixedly installed on the workbench with bolts in advance. Then, the hexagonal end of the second lead screw 330 is rotated with a wrench. As the second lead screw 330 rotates forward, the pad 360 will be lifted upward along the threaded section of the second lead screw 330. The pad 360 will drive the two lever arms 3601 to retract. After retraction, the lever arms 3601 will stretch the inner pressure plate 350 to move closer to the second lead screw 330 until a sufficiently large opening is exposed between the two inner pressure plates 350 and the support plate 3101. Then, use a wrench to adjust the hexagonal end at the bottom of the first lead screw 320 to reverse it. As the first lead screw 320 rises, it will push the pressure plate 390 upward. The pressure spring 3903 will lose its compressive force and reduce the pressure of the cover plate 380. Then, insert the D-type sleeve 100 through the gap between the top pressure plate 400, the expanded cover plate 380, and the base 370, and clamp the top pressure plate 400 onto the upper half of the D-type sleeve 100. Then, rotate the second lead screw 330 and the first lead screw 320 until the top pressure plate 400, the cover plate 380, and the base 370 quickly fix the D-type sleeve 100. At the same time, the two chain pieces 200 attached to both ends of the D-type sleeve 100 will also be synchronously calibrated and clamped, which will facilitate subsequent welding operations.

[0024] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A welding auxiliary fixture for a single-section D-type sleeve and chain links, comprising a D-type sleeve (100) and two chain links (200), characterized in that, It also includes a clamping mechanism (300) and a top pressure plate (400) disposed on the clamping mechanism (300), and the D-type sleeve (100) and two chain links (200) are pre-installed in the clamping mechanism (300); The clamping mechanism (300) includes a support plate (3101), on which a base (370) is fixedly installed. Two limiting holes (3102) are opened inside the support plate (3101). An inner pressure plate (350) is movably installed in each of the two limiting holes (3102). A chuck (3501) is fixedly installed on the inner side of the inner pressure plate (350). A second lead screw (330) is movably installed inside the support plate (3101). A pad (360) is threaded on the second lead screw (330). Two lever arms (3601) are movably connected to the pad (360). A spring (340) is provided on the outside of the second lead screw (330). The top pressure plate (400) is movably installed outside the second lead screw (330), and the spring (340) is pressed between the pad (360) and the top pressure plate (400).

2. The welding auxiliary tooling for a single-section D-type sleeve and chain link according to claim 1, characterized in that, The bottom of the tray (3101) is fixedly installed with a base (310), and the base (310) has two slots inside.

3. The welding auxiliary tooling for a single-section D-type sleeve and chain link according to claim 1, characterized in that, The support plate (3101) is internally threaded with a first lead screw (320). A pressure plate (390) is movably mounted on the top of the first lead screw (320). A shaft (3901) is inserted into the bottom of the pressure plate (390). A column head (3902) is provided on the outside of the pressure plate (390). A compression spring (3903) is fixedly mounted on the outer end of the column head (3902). A guide rod (3801) is movably mounted inside the column head (3902). A cover plate (380) is fixedly mounted on the outer end of the guide rod (3801). A gasket (3802) is fixedly mounted on the inner end of the guide rod (3801), and the other end of the compression spring (3903) is pressed against the gasket (3802).

4. The welding auxiliary tooling for a single-section D-type sleeve and chain link according to claim 3, characterized in that, Two limiting rods (3803) are fixedly installed on the cover plate (380), and the two limiting rods (3803) are adapted to penetrate into the base (370).

5. The welding auxiliary tooling for a single-section D-type sleeve and chain link according to claim 1, characterized in that, The base (370) has a vertical groove on its back, and the shaft (3901) is adapted to pass through the vertical groove.

6. The welding auxiliary tooling for a single-section D-type sleeve and chain link according to claim 1, characterized in that, The pallet (3101) has rectangular grooves in two sections facing the two inner pressure plates (350).

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