Dot matrix positioning welding tool

Abstract

The application provides a dot array positioning welding tool, which comprises a bottom plate, a nitrogen-filled support assembly of an air suction pipe stand, a U pipe bracket assembly and a nitrogen-filled support assembly of a capillary pipe, a plurality of hole positions are arranged on the bottom plate in an array, and the nitrogen-filled support assembly of the air suction pipe stand, the U pipe bracket assembly and the nitrogen-filled support assembly of the capillary pipe are detachably arranged on the bottom plate through the hole positions. Through the cooperation of each component and the bottom plate, the timeliness of the tool adjustment process is improved, and the personnel waiting loss is reduced. Meanwhile, the components are positioned through the hole positions on the bottom plate, and the space rotation angle of the components is adjusted, so that the welding parts can be accurately fixed, the shaking and displacement of the welding parts are prevented, and the assembly accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of welding fixture technology, and in particular to a dot matrix positioning welding fixture. Background Technology

[0002] The four-way valve consists of a valve body and four connecting pipes. Three of the pipes are on the same side; the middle pipe connects to the compressor's suction pipe, and the other two connect to the indoor and outdoor heat exchangers. The fourth pipe is on the other side and connects to the compressor's discharge pipe. The valve body contains a semi-circular slider and two pistons with small holes. The slider acts as the valve, moving left and right within the valve body, allowing the two lower connecting pipes to connect through the two valve holes covered by the slider. The other lower connecting pipe connects to the valve body through another valve hole. The pistons and slider are connected together by a valve bracket and can move synchronously. Welding is required during the production process for the four-way valve.

[0003] Currently, the four-way valves produced by enterprises have a wide variety of structures. Although the welding fixtures used are adjustable, the consistency of welding space dimensions and spatial angles is poor, and there are deviations from the process drawings. The applicability is poor. In addition, the use of manual protective nitrogen filling results in leakage of protective nitrogen filling and waste of time waiting for the specified nitrogen filling time limit. In order to solve the problem of welding fixture versatility, a dot matrix welding fixture is designed. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this invention is to provide a dot matrix positioning welding fixture to solve the above-mentioned technical problems.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] A dot matrix positioning welding fixture includes a base plate, a nitrogen-filled suction pipe column support assembly, a U-tube bracket assembly, and a nitrogen-filled capillary tube column support assembly; the base plate is provided with an array of holes, and the nitrogen-filled suction pipe column support assembly, the U-tube bracket assembly, and the nitrogen-filled capillary tube column support assembly are detachably mounted on the base plate through the holes.

[0007] As a further improvement of the present invention: the hole is set at an oblique angle on the base plate; the hole includes a fixing hole and a locking groove, and the locking groove is symmetrically arranged on both sides of the fixing hole.

[0008] As a further improvement of the present invention: the nitrogen-filled support assembly for the inhalation tube column includes an inhalation tube nitrogen-filling nozzle, an inhalation tube connecting block, an inhalation tube connecting handle, a column connecting rod, an inhalation tube connecting rod, and an inhalation tube valve bracket stop block; the inhalation tube connecting block is provided on the inhalation tube nitrogen-filling nozzle, one end of the inhalation tube connecting handle passes through the inhalation tube connecting block and is connected to the inhalation tube connecting rod, the bottom of the inhalation tube nitrogen-filling nozzle is connected to the column connecting rod, and the inhalation tube valve bracket stop block is provided at the bottom of the column connecting rod.

[0009] As a further improvement of the present invention: the suction tube connecting rod includes a first suction connecting part and a second suction connecting part; the first suction connecting part is connected to the second suction connecting part, and the second suction connecting part is connected to the suction tube connecting handle.

[0010] As a further improvement of the present invention: the U-tube bracket assembly includes a U-tube connecting block, a U-tube nitrogen filling nozzle, a U-tube connecting rod, a U-tube connecting handle, and a U-tube valve bracket stop; the U-tube connecting block is disposed on the U-tube nitrogen filling nozzle, one end of the U-tube connecting handle passes through the U-tube connecting block and is connected to the U-tube connecting rod, and the bottom of the U-tube nitrogen filling nozzle is provided with the U-tube valve bracket stop.

[0011] As a further improvement of the present invention: the U-tube connecting rod includes a first U-tube connecting part and a second U-tube connecting part; the first U-tube connecting part is connected to the second U-tube connecting part, and the second U-tube connecting part is connected to the U-tube connecting handle.

[0012] As a further improvement of the present invention: the capillary nitrogen-filling column support assembly includes a capillary nitrogen-filling nozzle, a capillary connecting block, a capillary connecting handle, a capillary connecting rod, and a capillary valve bracket stop; the capillary connecting block is disposed on the capillary nitrogen-filling nozzle, the capillary connecting handle passes through the capillary connecting block and is connected to the capillary connecting handle, and the capillary valve bracket stop is disposed at the bottom of the capillary nitrogen-filling nozzle.

[0013] As a further improvement of the present invention: the capillary connecting rod includes a first capillary connecting part and a second capillary connecting part, the first capillary connecting part is connected to the second capillary connecting part, and the second capillary connecting part is connected to the capillary connecting handle.

[0014] As a further improvement of the present invention: the base plate is made of C45 material.

[0015] As a further improvement of the present invention, it also includes a support foot, which is disposed on the base plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This invention improves the timeliness of tooling adjustment and reduces personnel waiting time by using various components in conjunction with the base plate. Simultaneously, the positioning of components and adjustment of their spatial rotation angles via holes on the base plate precisely fix the welded parts, preventing them from shaking or shifting and improving assembly accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a top view of the structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the base plate structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the nitrogen-filled support assembly for the intake pipe column of the present invention.

[0022] Figure 5 This is a schematic diagram of the U-tube bracket assembly structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the capillary nitrogen-filled column support assembly of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Base plate; 2-Nitrogen-filled support assembly for suction pipe column; 3-U-tube bracket assembly; 4-Capillary nitrogen-filled column support assembly; 11-Hole position; 111-Fixing hole; 112-Locking groove; 21-Nitrogen-filled nozzle for suction pipe; 22-Suction pipe connecting block; 23-Suction pipe connecting handle; 24-Column connecting rod; 25-Suction pipe connecting rod; 26-Suction pipe valve bracket stop; 251-First suction connection part; 252-Second suction connection part; 31-U 32-U-tube nitrogen filling nozzle; 33-U-tube connecting rod; 34-U-tube connecting handle; 35-U-tube valve bracket stop; 331-First U-tube connection part; 332-Second U-tube connection part; 41-Capillary nitrogen filling nozzle; 42-Capillary connecting block; 43-Capillary connecting handle; 44-Capillary connecting rod; 45-Capillary valve bracket stop; 441-First capillary connection part; 442-Second capillary connection part; 5-Support foot. Detailed Implementation

[0026] The present invention will now be further described in conjunction with the accompanying drawings and embodiments:

[0027] This invention provides as shown in the appendix. Figure 1-6The dot matrix positioning welding fixture shown is characterized by comprising a base plate 1, a nitrogen-filled suction pipe column support assembly 2, a U-tube bracket assembly 3, and a nitrogen-filled capillary tube column support assembly 4; the base plate 1 is provided with an array of holes 11, and the nitrogen-filled suction pipe column support assembly 2, the U-tube bracket assembly 3, and the nitrogen-filled capillary tube column support assembly 4 are detachably mounted on the base plate 1 through the holes 11.

[0028] In this invention, the nitrogen-filled support assembly 2 for the inhalation tube column is used to support the bottom of the inhalation tube assembly; the U-tube bracket assembly 3 is used to support the U-shaped bottom of the U-shaped tube assembly; and the nitrogen-filled support assembly 4 for the capillary tube assembly is used to support the U-shaped tube connecting tube of the capillary assembly.

[0029] In use, the position of hole 11 is determined according to the corresponding dimensions on the base plate 1 based on the process drawings, and then the components of the intake pipe column nitrogen-filling support assembly 2, U-tube bracket assembly 3, and capillary tube nitrogen-filling column support assembly 4 are assembled. Then, according to the required production model and the shape, size, and angle required by the process drawings, the capillary assembly, U-shaped pipe assembly, and intake pipe assembly are sequentially piped and simultaneously installed on their corresponding capillary tube nitrogen-filling column support assembly 4, U-tube bracket assembly 3, and intake pipe column nitrogen-filling support assembly 2 for positioning. A four-way valve assembly, an exhaust pipe assembly, and corresponding support assemblies can also be added as needed. Afterwards, the spatial rotation angle of the intake pipe column nitrogen-filling support assembly 2, U-tube bracket assembly 3, and capillary tube nitrogen-filling column support assembly 4 is adjusted as needed to ensure the intake pipe, U-tube, and capillary tube are at the correct angle. In this invention, the welding parts are fixed by positioning these components in the holes on the base plate, thereby preventing the welding parts from shaking or shifting, which would affect the assemblability.

[0030] The structure of the holes in this invention will be described in further detail in the appendix. Figure 2-3 As shown, the hole position 11 includes a fixing hole 111 and a locking groove 112, with the locking groove 112 symmetrically arranged on both sides of the fixing hole 111. The hole position 11 is set at an oblique angle on the base plate 1. Therefore, the hole position in this invention is an oblique butterfly structure. This butterfly structure allows for a larger contact area with the fixing posts of each support component, and its irregular shape prevents the fixing posts from shaking on the base plate under rotational force during use, ensuring the positioning effect. For example, by setting corresponding butterfly structure clips at the connection positions of the support posts and the hole positions, the clips can be locked in the two locking grooves 112 to restrict the rotation of the entire support component under rotational force on the base plate, thereby further improving the positioning effect of each support component or bracket component.

[0031] The structure of the nitrogen-filled support assembly 2 for the intake pipe column in this invention will be described in further detail below, as shown in the attached figure. Figure 4As shown, the nitrogen-filled support assembly 2 for the inhalation tube column includes an inhalation tube nitrogen-filling nozzle 21, an inhalation tube connecting block 22, an inhalation tube connecting handle 23, a column connecting rod 24, an inhalation tube connecting rod 25, and an inhalation tube valve bracket stop 26. The inhalation tube connecting block 22 is provided on the inhalation tube nitrogen-filling nozzle 21. One end of the inhalation tube connecting handle 23 passes through the inhalation tube connecting block 22 and is connected to the inhalation tube connecting rod 25. The bottom of the inhalation tube nitrogen-filling nozzle 21 is connected to the column connecting rod 24. The inhalation tube valve bracket stop 26 is provided at the bottom of the column connecting rod 24.

[0032] In this invention, the nitrogen-filling nozzle 21 of the suction pipe is used to introduce protective gas to ensure welding quality; the suction pipe connecting block 22 is used to simultaneously fix the longitudinal nitrogen-filling nozzle 21 of the suction pipe and the transverse suction pipe connecting rod 25; the suction pipe connecting handle 23 is used to adjust the tightness of the suction pipe connecting block 22 to ensure a firm fit between the longitudinal and transverse connecting rods; the column connecting rod 24 is used to position and connect the entire assembly on the base plate; the suction pipe connecting rod 25 is used to install and position the suction pipe; and the suction pipe valve bracket stop block 26 is used to fix the position of the valve bracket. Specifically, by adjusting the rotation direction and angle of the suction pipe connecting block 22 on the nitrogen-filling nozzle 21 of the suction pipe, and then fixing the suction pipe connecting block by the suction pipe connecting handle 23, the spatial rotation angle of the entire suction pipe column nitrogen-filling support assembly 2 is adjusted.

[0033] The structure of the suction tube connecting rod 25 is described in further detail below, as shown in the attached document. Figure 4 As shown, the suction tube connecting rod 25 includes a first suction connecting part 251 and a second suction connecting part 252; the first suction connecting part 251 is connected to the second suction connecting part 252, and the second suction connecting part 252 is connected to the suction tube connecting handle 23. The first suction connecting part 251 is used to install and fix the suction tube assembly, and the second suction connecting part 252 is used to fix the suction tube assembly to the support assembly.

[0034] The structure of the U-tube bracket assembly 3 in this invention will be described in further detail below, as shown in the attached figure. Figure 5 As shown, the U-tube bracket assembly 3 includes a U-tube connecting block 31, a U-tube nitrogen filling nozzle 32, a U-tube connecting rod 33, a U-tube connecting handle 34, and a U-tube valve support block 35; the U-tube connecting block 31 is disposed on the U-tube nitrogen filling nozzle 32, one end of the U-tube connecting handle 34 passes through the U-tube connecting block 31 and is connected to the U-tube connecting rod 33, and the U-tube valve support block 35 is disposed at the bottom of the U-tube nitrogen filling nozzle 32.

[0035] In this invention, the U-tube connecting block 31 is used to fix the longitudinal U-tube nitrogen filling nozzle 32 and the transverse U-tube connecting rod 33; the U-tube nitrogen filling nozzle 32 is used to introduce protective gas to ensure welding quality; the U-tube connecting rod 33 is used to position and connect the entire U-tube bracket assembly 3; the U-tube connecting handle 34 is used to adjust the tightness of the U-tube connecting block 31 to ensure a firm fit between the longitudinal and transverse structures; and the U-tube valve bracket stop block 35 is used to fix the position of the valve bracket. Specifically, by adjusting the rotation direction and angle of the U-tube connecting block 31 on the U-tube nitrogen filling nozzle 32, and then fixing the U-tube connecting block 31 with the U-tube connecting handle 34, the spatial rotation angle of the entire U-tube bracket assembly 3 can be adjusted.

[0036] The structure of the U-tube connecting rod 33 is described in further detail below, as shown in the attached document. Figure 5 As shown, the U-tube connecting rod 33 includes a first U-tube connecting part 331 and a second U-tube connecting part 332. The first U-tube connecting part 331 is connected to the second U-tube connecting part 332, and the second U-tube connecting part 332 is connected to the U-tube connecting handle 34. The first U-tube connecting part 331 is used to adjust the U-shaped pipe assembly, and the second U-tube connecting part 332 is used to connect and fix the U-shaped pipe assembly to the U-tube bracket assembly 3.

[0037] The structure of the capillary nitrogen-filled column support assembly 4 in this invention will be described in further detail below, as shown in the attached figure. Figure 6 As shown, the capillary nitrogen-filling column support assembly 4 includes a capillary nitrogen-filling nozzle 41, a capillary connecting block 42, a capillary connecting handle 43, a capillary connecting rod 44, and a capillary valve bracket stop 45. The capillary connecting block 42 is disposed on the capillary nitrogen-filling nozzle 41, and the capillary connecting handle 43 passes through the capillary connecting block 42 and is connected to the capillary connecting handle 43. The capillary valve bracket stop 45 is disposed at the bottom of the capillary nitrogen-filling nozzle 41.

[0038] In this invention, the capillary connecting block 42 is used to fix the longitudinal capillary nitrogen filling nozzle 41 and the transverse capillary connecting rod 44; the capillary nitrogen filling nozzle 41 is used to introduce protective gas to ensure welding quality; the capillary connecting rod 44 is used to position and connect the entire capillary assembly; the capillary connecting handle 43 is used to adjust the tightness of the capillary connecting block 42 to ensure a firm fit between the longitudinal and transverse structures; and the capillary valve support stop block 45 is used to fix the position of the valve support. Specifically, by adjusting the rotation direction and angle of the capillary connecting block 42 on the capillary nitrogen filling nozzle 41, and then fixing the capillary connecting block 42 with the capillary connecting handle 43, the spatial rotation angle of the entire capillary assembly can be adjusted.

[0039] The structure of the capillary connecting rod 44 is described in further detail below, as shown in the attached document. Figure 6As shown, the capillary connecting rod 44 includes a first capillary connecting portion 441 and a second capillary connecting portion 442. The first capillary connecting portion 441 is connected to the second capillary connecting portion 442, and the second capillary connecting portion 442 is connected to the capillary connecting handle 43. The first capillary connecting portion 441 is used to install and fix the capillary assembly, and the second capillary connecting portion 442 is used to connect and fix the capillary assembly to the entire support assembly.

[0040] In this invention, the base plate 1 is made of C45 material.

[0041] The mechanism of the present invention will be described in further detail below, as shown in the appendix. Figure 1 As shown, it also includes a support foot 5, which is disposed on the base plate 1.

[0042] The technical problem solved by this invention:

[0043] 1. Resolved the issue of tooling inapplicability during adjustment.

[0044] ① As the size of the four-way valve design changes, the distance between each positioning post, the size of each positioning support point, and the spatial rotation angle can be adjusted according to the hole position on the base plate. Appropriate positioning can be selected that meets the various dimensional and angular requirements set in the drawings.

[0045] ② Manual nitrogen filling: Design nitrogen filling fixtures so that after the pipeline components are aligned with the hole positions, protective nitrogen is automatically filled, avoiding human error in missing or not filling protective nitrogen, as well as the waste of waiting for the specified nitrogen filling time limit;

[0046] Improve the timeliness of tooling adjustment processes and reduce personnel waiting time losses.

[0047] The workflow of this invention:

[0048] First, holes are drilled in the base plate to add a nitrogen-filling column for the suction pipe, a nitrogen-filling nozzle, support feet, support pads, a U-tube bracket base, a valve stop, a nitrogen-filling column for the capillary tube, a suction and exhaust pipe support assembly, fastening nuts, and a capillary support assembly, etc., to prevent the welded parts from shaking or shifting.

[0049] (1) Take a 300*400mm C45 material base plate and drill holes at the same distance.

[0050] (2) Fix the nitrogen-filling column, nitrogen-filling nozzle, support feet, support pads, U-tube bracket base, valve block, capillary nitrogen-filling column, exhaust pipe support assembly, fastening nut, capillary support assembly, etc. to the floor for positioning.

[0051] (3) Set the dimensions according to the process drawings, adjust the positioning support points of the base plate, set the angle according to the process drawings, and adjust the brackets of each support to prevent the workpiece from shaking after being placed in, which would affect the consistency of assembly.

[0052] The main function of this invention is to achieve tooling positioning and angle adjustment by setting butterfly-shaped openings on the base plate and setting the required components according to the hole positions of the array, so as to ensure the consistency of welding angle dimensions.

[0053] In summary, after reading this invention document, those skilled in the art can make various other corresponding modifications to the technical solutions and concepts based on this invention without creative mental effort, and all of these modifications fall within the scope of protection of this invention.

Claims

1. A dot matrix positioning welding fixture, characterized in that, The system includes a base plate, a nitrogen-filled intake tube column support assembly, a U-tube bracket assembly, and a capillary nitrogen-filled column support assembly. The base plate has an array of holes through which the nitrogen-filled intake tube column support assembly, U-tube bracket assembly, and capillary nitrogen-filled column support assembly are detachably mounted. These holes are angled on the base plate. Each hole includes a fixing hole and a locking groove, with the locking grooves symmetrically arranged on both sides of the fixing hole. The nitrogen-filled intake tube column support assembly includes a nitrogen-filled intake tube nozzle, an intake tube connecting block, an intake tube connecting handle, a column connecting rod, and an intake tube valve bracket stop. The intake tube connecting block is mounted on the nitrogen-filled intake tube nozzle. One end of the intake tube connecting handle passes through the intake tube connecting block and connects to the intake tube connecting rod. The bottom of the nitrogen-filled intake tube nozzle is connected to the column connecting rod, and the intake tube valve bracket stop is mounted on the bottom of the column connecting rod.

2. The dot matrix positioning welding fixture according to claim 1, characterized in that, The suction tube connecting rod includes a first suction connecting part and a second suction connecting part; the first suction connecting part is connected to the second suction connecting part, and the second suction connecting part is connected to the suction tube connecting handle.

3. The dot matrix positioning welding fixture according to claim 1, characterized in that, The U-tube bracket assembly includes a U-tube connecting block, a U-tube nitrogen filling nozzle, a U-tube connecting rod, a U-tube connecting handle, and a U-tube valve support block. The U-tube connecting block is disposed on the U-tube nitrogen filling nozzle, one end of the U-tube connecting handle passes through the U-tube connecting block and is connected to the U-tube connecting rod, and the U-tube valve support block is disposed at the bottom of the U-tube nitrogen filling nozzle.

4. The dot matrix positioning welding fixture according to claim 3, characterized in that, The U-tube connecting rod includes a first U-tube connecting part and a second U-tube connecting part; the first U-tube connecting part is connected to the second U-tube connecting part, and the second U-tube connecting part is connected to the U-tube connecting handle.

5. The dot matrix positioning welding fixture according to claim 1, characterized in that, The capillary nitrogen-filling column support assembly includes a capillary nitrogen-filling nozzle, a capillary connecting block, a capillary connecting handle, a capillary connecting rod, and a capillary valve bracket stop block; the capillary connecting block is disposed on the capillary nitrogen-filling nozzle, the capillary connecting handle passes through the capillary connecting block and is connected to the capillary connecting handle, and the capillary valve bracket stop block is disposed at the bottom of the capillary nitrogen-filling nozzle.

6. The dot matrix positioning welding fixture according to claim 5, characterized in that, The capillary connecting rod includes a first capillary connecting part and a second capillary connecting part, the first capillary connecting part being connected to the second capillary connecting part, and the second capillary connecting part being connected to the capillary connecting handle.

7. The dot matrix positioning welding fixture according to claim 1, characterized in that, The base plate is made of C45 material.

8. The dot matrix positioning welding fixture according to claim 1, characterized in that, It also includes support feet, which are mounted on the base plate.

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