Positioning tool for evaporator copper pipe welding

Abstract

The utility model discloses a positioning tool for evaporator copper pipe welding, and relates to the technical field of evaporator production equipment. The welding device comprises a welding box and fixing rings arranged in the centers of the outer walls of the two sides of the welding box, rotating rings are rotationally connected to the outer sides of the fixing rings, positioning assemblies are arranged on the outer sides of the top ends in the rotating rings, and adjusting assemblies are arranged at the bottom of the welding box. Through the positioning assembly, workers can conveniently and rapidly disassemble, position and install the copper pipes, time and labor are saved, the working efficiency is high, the copper pipes at the two ends can synchronously run through the adjusting assembly, then the stability of the copper pipes in the welding process can be improved, and the welding quality is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of evaporator production equipment, and in particular relates to a positioning fixture for welding copper tubes in evaporators. Background Technology

[0002] With the development of society and technology, equipment in various fields has been greatly improved. Evaporator is an important component among the four major components of refrigeration. Low-temperature condensed liquid exchanges heat with the outside air through the evaporator, and the vaporization absorbs heat to achieve the cooling effect. Copper tube is an important material in evaporator. During the installation process, it needs to be clamped and fixed by positioning fixtures before welding, which greatly improves the welding efficiency and quality of copper tube.

[0003] A search revealed that publication number CN211516570U, with an application date of 2019.12.09, discloses a welding positioning device for air conditioning copper pipes. The device includes a housing, with positioning devices on both sides of the outer wall of the housing. Each positioning device includes a fixing ring. Through holes are provided on both sides of the housing, and the two fixing rings are welded inside the through holes. A rotating ring is provided on one side of each of the two fixing rings, and a positioning bolt is threaded to the top of each of the two rotating rings. A welding port is provided on the top of the housing, and a storage device is provided inside the housing.

[0004] However, it still has the following drawbacks in practical use:

[0005] The aforementioned welding positioning device for air conditioning copper pipes uses positioning bolts, positioning blocks, etc. to position and clamp the copper pipes during use. However, this method is cumbersome, time-consuming, and labor-intensive for operators, resulting in low work efficiency.

[0006] 2. The aforementioned welding positioning device for air conditioning copper pipes requires manual rotation of both ends of the copper pipes during use. This method cannot guarantee synchronous movement of the two ends of the copper pipes, resulting in poor stability, which may affect the welding quality and increase the workload of the workers. Therefore, we provide a positioning fixture for welding evaporator copper pipes to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this utility model is to provide a positioning fixture for welding copper tubes in an evaporator. By setting up a positioning component, it is convenient for workers to quickly disassemble, assemble, and position the copper tubes, saving time and effort and increasing work efficiency. Furthermore, by using an adjustment component, the copper tubes at both ends can be rotated synchronously, thereby increasing the stability of the copper tube welding process and improving the welding quality.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0009] This utility model is a positioning fixture for welding copper tubes of evaporators, including a welding box and a fixing ring set at the center of the outer walls on both sides. A rotating ring is rotatably connected to the outer side of the fixing ring, and a positioning component is set on the outer side of the top of the inner end of the rotating ring. An adjustment component is set at the bottom of the welding box.

[0010] The positioning assembly includes an upper positioning seat and connecting rods that are fixedly connected to its upper surface at even intervals along the horizontal direction. The inner sidewall of the upper positioning seat is bonded with an anti-slip pad.

[0011] The regulating assembly includes a motor and a driving conical wheel mounted on its output shaft, with a driven conical wheel located on one side above the driving conical wheel.

[0012] The present invention is further provided that a welding port is provided at the center of the top of the welding box, and an observation window is provided at the top of the front end face of the welding box.

[0013] The present invention is further provided with a storage mechanism at the lower interior of the welding box, and an annular groove at the center of the outer side wall of the fixing ring.

[0014] The present invention is further configured such that a limiting ring is fixedly connected to the center position of the inner sidewall of the rotating ring, and the other end of the limiting ring is located inside the annular groove.

[0015] The present invention is further configured such that a lower positioning seat is provided on the outer side of the inner bottom end of the rotating ring, and a driven wheel is sleeved on the inner side of the outer wall of the rotating ring.

[0016] The present invention is further configured such that the top end of the connecting rod passes through the through hole at the top end of the rotating ring and is connected to the limiting plate, and a spring is sleeved on the outer side of the outer wall of the connecting rod.

[0017] The present invention is further configured such that the spring is located between the upper positioning seat and the inner wall of the rotating ring, and the center positions of the front and rear end faces of the limiting plate are fixedly connected to the pull plates.

[0018] The present invention is further configured such that a rotating shaft is installed at the center of the inner wall of the driven conical wheel, and the bearings on both sides of the inner wall of the rotating shaft pass through the two end faces of the driven conical wheel and the one end face of the adjacent support plate, respectively, and are connected to the driving wheel.

[0019] The present invention is further configured such that the top of the support plate is fixed to the two sides of the bottom of the welding box, and the outer wall of the driving wheel is connected to the outer wall of the driven wheel via a belt.

[0020] This utility model has the following beneficial effects:

[0021] This invention, by setting a positioning component, allows the upper positioning seat to move under the elasticity of the spring, and cooperates with the lower positioning seat to clamp and position the copper pipe. This facilitates quick disassembly, assembly, and positioning of the copper pipe by the workers, saving time and effort and increasing work efficiency. It solves the problem that the above-mentioned welding positioning device for air conditioning copper pipes uses positioning bolts and positioning blocks in the positioning device to clamp and position the copper pipe, which is cumbersome, time-consuming, and labor-intensive for workers, resulting in low work efficiency.

[0022] This invention, by setting an adjustment component, allows the motor to drive the rotating rings at both ends to rotate synchronously under the action of various components. This increases the stability of the copper pipe welding process and improves the welding quality. It solves the problem that the above-mentioned welding positioning device for air conditioning copper pipes requires manual rotation of the copper pipes at both ends during use. This method cannot guarantee the synchronous movement of the copper pipes at both ends, has poor stability, may affect the welding quality, and also increases the workload of the workers.

[0023] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of a positioning fixture for welding copper tubes in an evaporator.

[0026] Figure 2 This is a cross-sectional view of a positioning fixture for welding copper tubes in an evaporator.

[0027] Figure 3 This is a disassembled diagram of the fixed ring and the rotating ring.

[0028] Figure 4 This is a structural diagram of the positioning component.

[0029] Figure 5 The structural diagram for adjusting the components.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1-Welding box, 101-Welding joint, 102-Observation window, 103-Storage mechanism, 104-Fixing ring, 1041-Annular groove, 105-Rotating ring, 1051-Limiting ring, 1052-Lower positioning seat, 106-Driven wheel, 2-Positioning assembly, 201-Upper positioning seat, 202-Connecting rod, 203-Spring, 204-Limiting plate, 2041-Pull plate, 3-Adjusting assembly, 301-Motor, 3011-Driving conical wheel, 302-Rotating shaft, 3021-Driven conical wheel, 303-Support plate, 304-Driving wheel. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0033] Please see Figures 1 to 4 This utility model is a positioning fixture for welding copper tubes of an evaporator, including a welding box 1 and a fixing ring 104 set at the center of the outer walls on both sides. A rotating ring 105 is rotatably connected to the outer side of the fixing ring 104. A positioning component 2 is set on the outer side of the inner top of the rotating ring 105. The positioning component 2 includes an upper positioning seat 201 and a connecting rod 202 fixedly connected to its upper surface at uniform intervals along the horizontal direction. An anti-slip pad is adhered to the inner side wall of the upper positioning seat 201.

[0034] Specifically, a welding port 101 is provided at the center of the top of the welding box 1, an observation window 102 is provided at the top of the front end face of the welding box 1, a storage mechanism 103 is provided at the bottom of the interior of the welding box 1, an annular groove 1041 is provided at the center of the outer side wall of the fixing ring 104, a limiting ring 1051 is fixedly connected at the center of the inner side wall of the rotating ring 105, the other end of the limiting ring 1051 is located inside the annular groove 1041, a lower positioning seat 1052 is provided on the outer side of the bottom of the interior of the rotating ring 105, a driven wheel 106 is sleeved on the inner side of the outer wall of the rotating ring 105, the top end of the connecting rod 202 passes through the through hole at the top of the interior of the rotating ring 105 and is connected to the limiting plate 204, a spring 203 is sleeved on the outer side of the outer wall of the connecting rod 202, the spring 203 is located between the upper positioning seat 201 and the inner wall of the rotating ring 105, and a pull plate 2041 is fixedly connected at the center of the front and rear end faces of the limiting plate 204.

[0035] Furthermore, the anti-slip pad can increase the friction with the outer wall of the copper tube. The welding box 1, welding port 101, observation window 102, and storage mechanism 103 are all existing technologies, so they will not be described in detail here. The limiting ring 1051 and the annular groove 1041 play an auxiliary role in the rotation and limiting of the rotating ring 105. The upper positioning seat 201 and the lower positioning seat 1052 cooperate to clamp and fix the copper tube. The limiting plate 204 and the upper positioning seat 201 are connected by the connecting rod 202, which plays a role in connecting and transmitting. Under the elasticity of the spring 203, the upper positioning seat 201 can be moved.

[0036] The operation process of this embodiment is as follows: First, place the two sets of evaporator copper tubes to be welded together on the outside of the rotating ring 105 and the fixed ring 104 on both sides of the welding box 1. Then, pull the pull plate 2041 upward. The pull plate 2041 is forced to move the limiting plate 204 upward. The bottom of the limiting plate 204 is connected to the upper positioning seat 201 through the connecting rod 202. Therefore, when the limiting plate 204 moves upward, it will drive the upper positioning seat 201 to move under the action of the connecting rod 202 and squeeze the spring 203. Then, insert the copper tubes at both ends into the adjacent rotating ring 105 and the fixed ring 104 and place them in the welding box 1. Then stop applying force to the pull plate 2041. At this time, under the action of the elasticity of the spring 203, the upper positioning seat 201 will spring back to the initial position and cooperate with the lower positioning seat 1052 at the bottom of the rotating ring 105 to clamp and position the copper tubes. This makes it easy for workers to quickly disassemble, assemble, position and install the copper tubes, saving time and effort and increasing work efficiency. Specific Implementation Example 2

[0037] Please see Figure 2 , 5 Based on the first specific embodiment, the difference from the first embodiment is that an adjustment component 3 is provided. The adjustment component 3 includes a motor 301 and an active conical wheel 3011 mounted on its output shaft. A driven conical wheel 3021 is provided on one side above the active conical wheel 3011. This solves the problem that the existing manual operation cannot guarantee the synchronous movement of the copper tubes at both ends, has poor stability, may affect the welding quality, and will also increase the workload of the staff.

[0038] Specifically, a rotating shaft 302 is installed at the center of the inner wall of the driven conical wheel 3021. The inner walls of the rotating shaft 302 are respectively connected to the bearings on the two end faces of the driven conical wheel 3021 and the one end face of the adjacent support plate 303. The top of the support plate 303 is fixed to the two sides of the bottom edge of the welding box 1. The outer wall of the driving wheel 304 is connected to the outer wall of the driven wheel 106 by a belt.

[0039] Furthermore, the operation of motor 301 drives the active conical wheel 3011 to rotate, and the gear on the outer wall of the active conical wheel 3011 meshes with the gear on the outer wall of the driven conical wheel 3021 to play a transmission role. The driven conical wheel 3021 and the active wheel 304 are both located on the outer wall of the rotating shaft 302, and the three can move synchronously. The outer wall of the active wheel 304 is connected to the outer wall of the driven wheel 106 through a belt.

[0040] The operation process in this embodiment is as follows: After the copper tube is positioned, it is welded to the copper tube in the welding box 1 through the welding joint 101. During the welding process, the motor 301 is started. The output shaft of the motor 301 rotates, driving the active conical wheel 3011 to rotate. The gear on the outer wall of the active conical wheel 3011 meshes with the gear on the outer wall of the driven conical wheel 3021. Therefore, when the active conical wheel 3011 rotates, it drives the driven conical wheel 3021 to rotate, causing the shaft 302 on the inner wall of the driven conical wheel 3021 to rotate. The rotation of the shaft 302 will drive the drive wheels 304 at both ends to rotate. The outer wall of the drive wheel 304 is connected to the outer wall of the driven wheel 106 via a belt. Therefore, when the drive wheel 304 rotates, it will drive the driven wheel 106 to rotate under the action of the belt. The driven wheel 106 will cause the rotating ring 105 on its inner wall to rotate with the assistance of the limiting ring 1051 and the annular groove 1041. This will allow the copper tube clamped and positioned inside to rotate, thereby increasing the stability of the copper tube welding process and improving the welding quality.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A positioning tool for evaporator copper tube welding, comprising a welding box (1) and a fixing ring (104) arranged at the center position of the outer wall of both sides of the welding box (1), and the outer side of the fixing ring (104) is rotationally connected with a rotating ring (105), characterized in that: The inner top outer side of the rotating ring (105) is provided with a positioning assembly (2), and the bottom of the welding box (1) is provided with an adjusting assembly (3); The positioning assembly (2) comprises an upper positioning seat (201) and a connecting rod (202) fixedly connected to the upper surface of the upper positioning seat (201) in a uniform interval in the horizontal direction, and the inner side wall of the upper positioning seat (201) is bonded with a non-slip pad; The adjusting assembly (3) comprises a motor (301) and a driving bevel gear (3011) mounted on the output shaft of the motor (301), and the upper side of the driving bevel gear (3011) is provided with a driven bevel gear (3021).

2. The positioning tool for brazing a copper tube of an evaporator according to claim 1, wherein A welding port (101) is formed in the top center position of the welding box (1), and an observation window (102) is arranged on the top of the front end face of the welding box (1).

3. The positioning tool for brazing evaporator copper tubes according to claim 2, characterized in that, A receiving mechanism (103) is arranged inside the welding box (1), and an annular groove (1041) is arranged in the center position of the outer side wall of the fixed ring (104).

4. The positioning tool for brazing a copper tube of an evaporator according to claim 3, characterized in that, A limiting ring (1051) is fixedly connected to the inner side wall center position of the rotating ring (105), and the other end of the limiting ring (1051) is located inside the annular groove (1041).

5. The positioning tool for brazing evaporator copper tubes according to claim 4, characterized in that, A lower positioning seat (1052) is arranged on the inner bottom outer side of the rotating ring (105), and a driven wheel (106) is sleeved on the inner side of the outer wall of the rotating ring (105).

6. The positioning tool for brazing a copper tube of an evaporator according to claim 1, wherein The top end of the connecting rod (202) penetrates through the through hole in the inner top end of the rotating ring (105) and is connected with a limiting plate (204), and the outer wall of the connecting rod (202) is sleeved with a spring (203).

7. The positioning tool for brazing a copper tube of an evaporator according to claim 6, wherein The spring (203) is located between the inner wall of the upper positioning seat (201) and the rotating ring (105), and the front and rear ends of the limiting plate (204) are fixedly connected with pull plates (2041) in the center positions of the end faces.

8. The positioning tool for brazing evaporator copper tubes according to claim 5, wherein A rotating shaft (302) is mounted in the inner wall center position of the driven bevel gear (3021), and the inner walls on both sides of the rotating shaft (302) penetrate through the bearings on the two side end faces of the driven bevel gear (3021) and the side end face of the adjacent supporting plate (303) and are connected with a driving wheel (304).

9. The positioning tool for brazing a copper tube of an evaporator according to claim 8, wherein The top of the supporting plate (303) is fixed at the bottom of the welding box (1) on both side edges, and the outer wall of the driving wheel (304) is in transmission connection with the outer wall of the driven wheel (106) through a belt.

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