Welding workbench for plate heat exchanger

Abstract

The utility model provides a welding workbench for a plate heat exchanger, belongs to the technical field of plate heat exchanger processing, and aims to solve the problem that dripping welding slag easily pollutes a nameplate of the plate heat exchanger and affects the welding quality of the plate heat exchanger. Comprising a cooling welding box body, a welding supporting table, a welding clamping air cylinder, a welding conversion motor, a clamping protection mechanism and a conversion cooling mechanism. The welding supporting table is arranged at the upper end of the inner side of the cooling welding box body; the welding clamping air cylinder is fixedly connected to the left side of the welding supporting table. The welding conversion motor is fixedly connected to the lower end of the interior of the cooling welding box body; the clamping limiting grooves are formed in the left side and the right side of the upper portion of the welding supporting table correspondingly. The clamping protection mechanism is arranged above the welding supporting table. The conversion cooling mechanism is arranged on the inner side of the cooling welding box body, the nameplate at the upper end of the plate heat exchanger is protected, the nameplate of the plate heat exchanger is prevented from being polluted by welding slag, and the machining quality of the plate heat exchanger is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate heat exchanger processing, and more specifically, relates to a plate heat exchanger welding workbench. Background Art

[0002] A plate heat exchanger is a high-efficiency heat exchanger made of a series of stacked corrugated metal sheets. During the processing of existing plate heat exchangers, it is generally necessary to weld the connecting copper tubes of the plate heat exchanger. Currently, workers fix the plate heat exchanger using a welding workbench, then insert the copper tubes into the joints and secure them in place, and finally perform brazing.

[0003] The existing application number is: CN202320447582.2. This utility model is a simple tool for welding copper tubes of a plate heat exchanger, comprising a water tank, an operating platform, and a support column. The water tank is provided with a cavity for accommodating coolant, the upper portion of which is open, and the support column is mounted on the operating platform. The operating platform is supported and arranged in the cavity by the support column, and a plate heat exchanger is placed on the operating platform so that the plate heat exchanger can be immersed in the coolant. The copper tubes are then welded to the plate heat exchanger through the open hole. The simple tool of this utility model has a simple structure and low cost. It can protect the brazed joints of the plate heat exchanger from melting and damage due to excessive temperature when brazing the copper tubes.

[0004] Based on the above, when welding the copper tubes of the plate heat exchanger, since the nameplate of the plate heat exchanger is generally installed before welding the copper tubes of the plate heat exchanger, the dripping welding slag is easy to contaminate the nameplate of the plate heat exchanger during the welding of the copper tubes, thereby affecting the welding quality of the plate heat exchanger. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a plate heat exchanger welding workbench to solve the problem that when welding the copper tubes of the plate heat exchanger, the nameplate of the plate heat exchanger is generally installed before welding the copper tubes of the plate heat exchanger. When welding the copper tubes, dripping welding slag is likely to contaminate the nameplate of the plate heat exchanger, thereby affecting the welding quality of the plate heat exchanger.

[0006] The purpose and function of the plate heat exchanger welding workbench of the utility model are achieved by the following specific technical means:

[0007] A plate heat exchanger welding workbench, comprising a cooling welding box, a welding support platform, a welding clamping cylinder, a welding conversion motor, a clamping limit groove, a clamping protection mechanism and a conversion cooling mechanism;

[0008] The welding support platform is arranged at the inner upper end of the cooling welding box, and a positioning groove structure is provided above the welding support platform;

[0009] The welding clamping cylinder is fixedly connected to the left side of the welding support platform;

[0010] The welding conversion motor is fixedly connected to the lower end of the inner part of the cooling welding box;

[0011] There are two groups of clamping limit grooves, which are respectively opened on the left and right sides above the welding support platform;

[0012] The clamping protection mechanism is arranged above the welding support platform;

[0013] The conversion cooling mechanism is arranged on the inner side of the cooling welding box.

[0014] Furthermore, the clamping protection mechanism includes: a clamping protection slider and a protection baffle;

[0015] There are two groups of clamping protection sliders, which are respectively slidably connected to the inside of the clamping limit groove, and the left group of clamping protection sliders is fixedly connected to the piston rod of the welding clamping cylinder;

[0016] There are two groups of protective baffles, which are respectively fixedly connected to the upper ends of the clamping protective sliding blocks.

[0017] Furthermore, the clamping protection mechanism further comprises: a clamping guide wheel, a clamping transmission rope and a clamping connection spring;

[0018] The clamping guide wheel is rotatably connected to the upper left side of the welding support platform;

[0019] The clamping transmission rope is wound around the outer circumference of the clamping guide wheel, the left end of the clamping transmission rope is fixedly connected to a group of clamping protection sliders on the left side, and the right end of the clamping transmission rope is fixedly connected to a group of clamping protection sliders on the right side;

[0020] The clamping connection spring is fixedly connected to the inside of a group of clamping limit grooves on the right side, and the left end of the clamping connection spring is fixedly connected to a group of clamping protection sliding blocks on the right side.

[0021] Furthermore, the conversion cooling mechanism includes: a conversion drive pin and a conversion drive sheave;

[0022] The conversion drive pin is coaxially fixedly connected to the upper end of the rotating shaft of the welding conversion motor;

[0023] The conversion drive groove wheel is rotatably connected to the inner lower end of the cooling welding box body, and the conversion drive groove wheel and the conversion drive pin together form a groove wheel structure.

[0024] Furthermore, the conversion cooling mechanism further comprises: a first connecting member, a second connecting member and a connecting return spring;

[0025] The first connecting member is coaxially fixedly connected to the upper end of the conversion drive sheave;

[0026] The second connecting member is key-connected to the upper end of the first connecting member, and the upper end of the second connecting member is fixedly connected to the welding support platform;

[0027] The connection return spring is fixedly connected to the inner side of the second connection member, and the lower end of the connection return spring is fixedly connected to the first connection member.

[0028] Furthermore, the conversion cooling mechanism further comprises: a cooling drive protrusion and a cooling drive member;

[0029] There are four groups of cooling drive protrusions in total, and the four groups of cooling drive protrusions are respectively fixedly connected to the lower end of the outer periphery of the second connecting member;

[0030] The cooling drive member is a circular ring structure with a protrusion on the upper end. The cooling drive member is fixedly connected to the inside of the welding support platform and is arranged below the cooling drive protrusion.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] The utility model places the plate heat exchanger inside the positioning groove of the welding support table through the setting of the clamping protection mechanism, opens the welding clamping cylinder, and the piston rod of the welding clamping cylinder moves to the right, driving the left group of clamping protection sliders to move to the right. The left group of clamping protection sliders moves to the right and pulls the clamping transmission rope. At this time, the clamping transmission rope drives the right group of clamping protection sliders to move to the left under the action of the clamping guide wheel. At this time, the two groups of clamping protection sliders move toward each other, and the opposite movement of the clamping protection sliders drives the opposite movement of the protection baffles. The opposite movement of the protection baffles realizes the protection of the nameplate on the upper end of the plate heat exchanger, avoids the contamination of the nameplate of the plate heat exchanger by welding slag, and ensures the processing quality of the plate heat exchanger.

[0033] The utility model is provided with a conversion cooling mechanism, and the welding conversion motor is turned on, the rotating shaft of the welding conversion motor drives the conversion driving pin to rotate, the rotation of the conversion driving pin drives the conversion driving groove wheel to rotate, the rotation of the conversion driving groove wheel drives the first connecting member to rotate, the rotation of the first connecting member drives the second connecting member to rotate, the rotation of the second connecting member drives the welding support platform to rotate, and the rotation of the welding support platform drives the plate heat exchanger to rotate, which is convenient for workers to weld the lower group of copper pipes. At the same time, the rotation of the second connecting member also drives the cooling driving protrusion to rotate, and the cooling driving protrusion rotates and separates from the cooling driving member. At this time, the second connecting member moves downward, drives the plate heat exchanger to move downward into the coolant, thereby achieving cooling of the plate heat exchanger. At the same time, the second connecting member continues to rotate to drive the lower group of cooling driving protrusions to contact the cooling driving member. At this time, the plate heat exchanger is ejected in the coolant, which facilitates the workers to weld the copper pipes, avoids overheating of the plate heat exchanger during welding, ensures the processing quality of the plate heat exchanger, avoids the workers from moving positions, and improves the efficiency of welding the copper pipes of the plate heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0035] Figure 2 It is a schematic diagram of the conversion drive sheave structure of the utility model.

[0036] Figure 3 It is a structural schematic diagram of the clamping protection mechanism of the utility model.

[0037] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the utility model.

[0038] Figure 5 It is a schematic structural diagram of the conversion cooling mechanism of the utility model.

[0039] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0040] 1. Cooling welding box; 101. Clamping protection slider; 102. Protection baffle; 103. Clamping guide wheel; 104. Clamping transmission rope; 105. Clamping connection spring; 2. Welding support table; 3. Welding clamping cylinder; 4. Welding conversion motor; 401. Conversion drive pin; 402. Conversion drive groove pulley; 403. First connecting member; 404. Second connecting member; 405. Connecting reset spring; 406. Cooling drive protrusion; 407. Cooling drive member; 5. Clamping limit groove. DETAILED DESCRIPTION

[0041] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples.

[0042] Example 1:

[0043] As attached Figure 1 To the attached Figure 5 As shown:

[0044] The utility model provides a plate heat exchanger welding workbench, comprising a cooling welding box 1, a welding support platform 2, a welding clamping cylinder 3, a welding conversion motor 4, a clamping limit slot 5 and a clamping protection mechanism;

[0045] The welding support platform 2 is arranged at the upper end of the inner side of the cooling welding box 1, and a positioning groove structure is provided above the welding support platform 2;

[0046] The welding clamping cylinder 3 is fixedly connected to the left side of the welding support platform 2;

[0047] The welding conversion motor 4 is fixedly connected to the lower end of the inner portion of the cooling welding box 1;

[0048] There are two groups of clamping limit grooves 5, which are respectively opened on the left and right sides above the welding support platform 2;

[0049] The clamping protection mechanism is arranged above the welding support platform 2 .

[0050] The clamping protection mechanism includes: a clamping protection slider 101, a protection baffle 102, a clamping guide wheel 103, a clamping transmission rope 104 and a clamping connection spring 105;

[0051] There are two groups of clamping protection sliders 101, which are respectively slidably connected to the inside of the clamping limit groove 5, wherein the left group of clamping protection sliders 101 is fixedly connected to the piston rod of the welding clamping cylinder 3;

[0052] There are two groups of protective baffles 102, and the two groups of protective baffles 102 are fixedly connected to the upper ends of the clamping protective sliders 101;

[0053] The clamping guide wheel 103 is rotatably connected to the upper left side of the welding support platform 2;

[0054] The clamping transmission rope 104 is wound around the outer circumference of the clamping guide wheel 103. The left end of the clamping transmission rope 104 is fixedly connected to a group of clamping protection sliders 101 on the left side, and the right end of the clamping transmission rope 104 is fixedly connected to a group of clamping protection sliders 101 on the right side.

[0055] The clamping connection spring 105 is fixedly connected to the inside of the right group of clamping limit grooves 5, and the left end of the clamping connection spring 105 is fixedly connected to the right group of clamping protection sliders 101.

[0056] When the plate heat exchanger is in use, the plate heat exchanger is placed in the positioning groove of the welding support table 2, the welding clamping cylinder 3 is opened, and the piston rod of the welding clamping cylinder 3 moves to the right, driving the left group of clamping protection sliders 101 to move to the right, and the left group of clamping protection sliders 101 moves to the right, pulling the clamping transmission rope 104. At this time, the clamping transmission rope 104 drives the right group of clamping protection sliders 101 to move to the left under the action of the clamping guide wheel 103. At this time, the two groups of clamping protection sliders 101 move toward each other, and the clamping protection sliders 101 move toward each other, driving the protective baffle 102 to move toward each other. The protective baffle 102 moves toward each other to protect the nameplate on the upper end of the plate heat exchanger, avoiding welding slag from contaminating the nameplate of the plate heat exchanger, and ensuring the processing quality of the plate heat exchanger. When the welding is completed, the clamping protection slider 101 is reset under the action of the clamping connection spring 105.

[0057] Example 2:

[0058] The utility model provides a plate heat exchanger welding workbench, based on the first embodiment, as Figures 1 to 5 As shown, it also includes a conversion cooling mechanism, which is arranged on the inner side of the cooling welding box 1.

[0059] The conversion cooling mechanism includes: a conversion drive pin 401, a conversion drive sheave 402, a first connecting member 403, a second connecting member 404, a connection return spring 405, a cooling drive protrusion 406 and a cooling drive member 407;

[0060] The conversion drive pin 401 is coaxially fixedly connected to the upper end of the rotating shaft of the welding conversion motor 4;

[0061] The conversion drive sheave 402 is rotatably connected to the lower end of the inner portion of the cooling and welding box 1, and the conversion drive sheave 402 and the conversion drive pin 401 together form a sheave structure;

[0062] The first connecting member 403 is coaxially fixedly connected to the upper end of the conversion drive sheave 402;

[0063] The second connecting member 404 is key-connected to the upper end of the first connecting member 403, and the upper end of the second connecting member 404 is fixedly connected to the welding support platform 2;

[0064] The connection return spring 405 is fixedly connected to the inner side of the second connection member 404, and the lower end of the connection return spring 405 is fixedly connected to the first connection member 403;

[0065] There are four groups of cooling drive protrusions 406, which are respectively fixedly connected to the lower ends of the outer periphery of the second connecting member 404;

[0066] The cooling drive member 407 is a circular ring structure with a protrusion at the upper end. The cooling drive member 407 is fixedly connected to the inside of the welding support platform 2 and is arranged below the cooling drive protrusion 406.

[0067] In use, when the worker has finished welding a group of copper tubes of the plate heat exchanger, the welding conversion motor 4 is turned on at this time, and the rotating shaft of the welding conversion motor 4 rotates to drive the conversion drive pin 401 to rotate, and the rotation of the conversion drive pin 401 drives the conversion drive groove wheel 402 to rotate, and the rotation of the conversion drive groove wheel 402 drives the first connecting member 403 to rotate, and the rotation of the first connecting member 403 drives the second connecting member 404 to rotate, and the rotation of the second connecting member 404 drives the welding support platform 2 to rotate, and the rotation of the welding support platform 2 drives the plate heat exchanger to rotate, which makes it convenient for the worker to weld the next group of copper tubes, avoids the worker from moving position, and improves the The efficiency of welding the copper tubes of the plate heat exchanger is improved. At the same time, the rotation of the second connecting member 404 also drives the cooling drive protrusion 406 to rotate. The cooling drive protrusion 406 rotates and separates from the cooling drive member 407. At this time, the second connecting member 404 moves downward to drive the plate heat exchanger to move downward into the coolant, thereby realizing the cooling of the plate heat exchanger. At the same time, the second connecting member 404 continues to rotate to drive the lower group of cooling drive protrusions 406 to contact the cooling drive member 407. At this time, the plate heat exchanger is ejected in the coolant, which facilitates the workers' welding of the copper tubes, avoids overheating of the plate heat exchanger during welding, and ensures the processing quality of the plate heat exchanger.

[0068] In this article, there are several points to note:

[0069] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0070] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0071] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A plate heat exchanger welding workbench, comprising a cooling welding box (1), a welding support platform (2), a welding clamping cylinder (3), a welding conversion motor (4), a clamping limit groove (5), a clamping protection mechanism and a conversion cooling mechanism; characterized in that: The welding support platform (2) is arranged at the inner upper end of the cooling welding box (1), and a positioning groove structure is provided above the welding support platform (2); the welding clamping cylinder (3) is fixedly connected to the left side of the welding support platform (2); the welding conversion motor (4) is fixedly connected to the inner lower end of the cooling welding box (1); the clamping limit grooves (5) are provided in two groups, and the two groups of clamping limit grooves (5) are respectively provided on the left and right sides above the welding support platform (2); the clamping protection mechanism is provided above the welding support platform (2); and the conversion cooling mechanism is provided on the inner side of the cooling welding box (1).

2. A plate heat exchanger welding workbench according to claim 1, characterized in that: The clamping protection mechanism comprises: a clamping protection slider (101) and a protection baffle (102); the clamping protection slider (101) is provided in two groups, and the two groups of clamping protection sliders (101) are respectively slidably connected to the inside of the clamping limit groove (5), wherein the left group of clamping protection sliders (101) is fixedly connected to the piston rod of the welding clamping cylinder (3); the protection baffle (102) is provided in two groups, and the two groups of protection baffles (102) are respectively fixedly connected to the upper ends of the clamping protection sliders (101).

3. A plate heat exchanger welding workbench according to claim 2, characterized in that: The clamping protection mechanism further comprises: a clamping guide wheel (103), a clamping transmission rope (104) and a clamping connection spring (105); the clamping guide wheel (103) is rotatably connected to the upper left side of the welding support platform (2); the clamping transmission rope (104) is wound around the outer periphery of the clamping guide wheel (103), the left end of the clamping transmission rope (104) is fixedly connected to a group of clamping protection sliders (101) on the left side, and the right end of the clamping transmission rope (104) is fixedly connected to a group of clamping protection sliders (101) on the right side; the clamping connection spring (105) is fixedly connected to the inside of a group of clamping limit grooves (5) on the right side, and the left end of the clamping connection spring (105) is fixedly connected to a group of clamping protection sliders (101) on the right side.

4. The plate heat exchanger welding workbench according to claim 1, characterized in that: The conversion cooling mechanism comprises: a conversion drive pin (401) and a conversion drive groove wheel (402); the conversion drive pin (401) is coaxially fixedly connected to the upper end of the rotating shaft of the welding conversion motor (4); the conversion drive groove wheel (402) is rotatably connected to the lower end of the interior of the cooling welding box (1), and the conversion drive groove wheel (402) and the conversion drive pin (401) together form a groove wheel structure.

5. A plate heat exchanger welding workbench as claimed in claim 4, characterized in that: The conversion cooling mechanism further comprises: a first connecting member (403), a second connecting member (404) and a connection reset spring (405); the first connecting member (403) is coaxially fixedly connected to the upper end of the conversion drive sheave (402); the second connecting member (404) is key-connected to the upper end of the first connecting member (403), and the upper end of the second connecting member (404) is fixedly connected to the welding support platform (2); the connection reset spring (405) is fixedly connected to the inner side of the second connecting member (404), and the lower end of the connection reset spring (405) is fixedly connected to the first connecting member (403).

6. A plate heat exchanger welding workbench according to claim 5, characterized in that: The conversion cooling mechanism further comprises: a cooling drive protrusion (406) and a cooling drive member (407); the cooling drive protrusion (406) is provided in four groups, and the four groups of cooling drive protrusions (406) are respectively fixedly connected to the lower end of the outer periphery of the second connecting member (404); the cooling drive member (407) is a circular ring-shaped structure with a protrusion at the upper end. The cooling drive member (407) is fixedly connected to the inside of the welding support platform (2), and the cooling drive member (407) is arranged below the cooling drive protrusion (406).

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