Tool clamp for welding heat exchanger

Abstract

The utility model provides a work fixture for welding a heat exchanger, and relates to the technical field of heat exchanger production and processing, the work fixture comprises a movable base, a clamping assembly is arranged at the top of one end of the movable base, a brake assembly is arranged in the movable base, the clamping assembly comprises a telescopic rod, a rotating sleeve is fixedly installed at the top of the telescopic rod, and the rotating sleeve is fixedly connected with the movable base. A rotating shaft is rotatably connected to the interior of the rotating sleeve, a rotating handle is fixedly installed at one end of the rotating shaft, a clamping cavity is fixedly installed at the other end of the rotating shaft, a limiting sliding groove is formed in one side of the clamping cavity, two clamping blocks are slidably connected to the interior of the limiting sliding groove, and threaded holes are formed in one ends of the clamping blocks; a threaded rod is rotationally connected into the clamping cavity, the thread directions of the two ends of the outer side of the threaded rod are opposite, and the threaded rod is in threaded connection with the threaded hole. According to the elbow pipe welding device, an elbow pipe can be effectively clamped and fixed, the elbow pipe can be adjusted to the proper height and angle so that welding can be facilitated, and the elbow pipe welding device has high practical value.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchanger production and processing, and more specifically, particularly relates to a tooling fixture for welding a heat exchanger. Background Art

[0002] Heat exchanger is a device that transfers part of the heat of hot fluid to cold fluid, also known as heat exchanger. Heat exchanger plays an important role in chemical, petroleum, power, food and many other industrial production. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used. The structure of finned heat exchanger is mainly composed of fins, tubes and collectors.

[0003] Based on the above, the inventors have found the following problems: In the current production and processing of finned heat exchangers, the tubes with fins are usually fixed on the tube sheet, and then a bend is welded at one end of the tube to connect multiple tubes, and then the other end is welded to the collector. Workers usually hold the bend in one hand to fix it at one end of the tube, and hold the welding gun in the other hand to weld. However, holding the bend in one hand is prone to mistakes, resulting in welding failure, and is inconvenient to use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a tooling fixture for heat exchanger welding is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a tooling fixture for welding a heat exchanger.

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

[0007] A tooling fixture for welding a heat exchanger comprises a movable base, a clamping assembly is provided on the top of one end of the movable base, and a brake assembly is provided inside the movable base, the clamping assembly comprises a telescopic rod, a rotating sleeve is fixedly installed on the top of the telescopic rod, a rotating shaft is rotatably connected inside the rotating sleeve, a rotating handle is fixedly installed on one end of the rotating shaft, and a clamping cavity is fixedly installed on the other end of the rotating shaft, a limiting slide groove is provided on one side of the clamping cavity, two clamping blocks are slidably connected inside the limiting slide groove, a threaded hole is provided at one end of the clamping block, a threaded rod is rotatably connected inside the clamping cavity, the threads at the two ends of the outer side of the threaded rod are in opposite directions, and the threaded rod is threadedly connected to the threaded hole, and rubber pads are fixedly installed on the opposite sides of the two clamping blocks.

[0008] The beneficial effect of adopting the above-mentioned further scheme is that a clamping assembly is provided on the top of one end of the movable base, and a brake assembly is provided inside the movable base, so that the clamping assembly can clamp the bent pipe of the heat exchanger, and then the movable base is moved to a suitable position, so that the workers can weld the bent pipe conveniently. The setting of the telescopic rod is convenient for adjusting the bent pipe to a suitable height for welding. A rotating handle is fixedly installed at one end of the rotating shaft, and a clamping cavity is fixedly installed at the other end of the rotating shaft, so that the rotating shaft can be rotated using the rotating handle to adjust the angle of the clamping cavity, so that the bent pipe can be adjusted to a suitable angle for welding. The threads at the two ends of the outer side of the threaded rod are in opposite directions, and the threaded rod is threadedly connected to the threaded hole, so that the threaded rod can be rotated to make the two clamping blocks approach or move away from each other, thereby realizing the function of clamping and fixing the bent pipe. Rubber pads are fixedly installed on the opposite sides of the two clamping blocks, so as to improve the stability of the two clamping blocks in clamping and fixing the bent pipe.

[0009] Furthermore, a knob is fixedly mounted on one end of the threaded rod, and the knob is arranged outside the clamping cavity.

[0010] The beneficial effect of adopting the above further solution is that a knob is fixedly installed at one end of the threaded rod, and the knob is arranged outside the clamping cavity, so that the knob can be rotated to adjust the position of the clamping block, so that the clamping block can clamp and fix the bent pipe.

[0011] Furthermore, the mobile base includes a base body, a telescopic rod groove is opened at the top of one end of the base body, a brake groove is opened at the other end of the base body, the brake assembly is arranged inside the brake groove, the telescopic rod groove is fixedly connected to the telescopic rod, and a bull's eye universal wheel is fixedly installed at the bottom of the base body.

[0012] The beneficial effect of adopting the above further scheme is that the telescopic rod is fixedly connected to the telescopic rod through the telescopic rod groove, and a bull's eye universal wheel is fixedly installed on the bottom of the base body, which facilitates the fixed connection between the clamping assembly and the mobile base, and facilitates the movement of the device to a suitable position for convenient welding.

[0013] Furthermore, the brake assembly includes a brake block, which is slidably connected to the brake groove, a handle is fixedly installed on the top of the brake block, limiting grooves are provided on both sides of the bottom of the brake groove, and limiting blocks are fixedly installed on both sides of the bottom of the brake block.

[0014] The beneficial effect of adopting the above further solution is that by providing limit grooves on both sides of the bottom of the brake groove, limit blocks are fixedly installed on both sides of the bottom of the brake block, so that the brake block can be easily lifted up using the handle without being pulled out.

[0015] Furthermore, a positioning groove is provided in the middle of the inner side of the brake groove, a sliding cavity is provided in the middle of the brake block, two sliding blocks and an insert block are slidably connected inside the sliding cavity, return springs are fixedly installed at both ends of the top of the insert block, the top of the return spring is fixedly connected to the inner side of the sliding cavity, and a protrusion is fixedly installed in the middle of one side of the sliding block.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that, through the fixed connection between the top of the return spring and the inner side of the sliding cavity, a protrusion is fixedly installed in the middle of one side of the sliding block, which is convenient for the return spring to push the plug block downward, so that the plug block pushes the two sliding blocks to both sides, thereby making the protrusion slide outward and engage with the positioning groove, thereby fixing the position of the brake block, making the bottom of the brake block contact and abut against the ground, thereby fixing the position of the movable base, and facilitating the welding of the bent pipe.

[0017] Furthermore, the sliding block is provided with push springs fixedly mounted at both ends of one side of the protrusion, and the other end of the push spring is fixedly connected to the inner side of the sliding cavity.

[0018] The beneficial effect of adopting the above-mentioned further scheme is that the sliding block is provided with push springs fixedly installed at both ends of one side of the protrusion, and the other end of the push spring is fixedly connected to the inner side of the sliding cavity, so that when the plug block is moved upward, the push spring can push the protrusion to slide toward the inside of the brake block, thereby releasing the engagement between the protrusion and the positioning groove, making it convenient to use the handle to pull the brake block upward to release the fixation of the movable base position.

[0019] Furthermore, a connecting rod is fixedly installed at the middle part of the top end of the insert block, and a control handle is fixedly installed at the top end of the connecting rod.

[0020] The beneficial effect of adopting the above further solution is that a connecting rod is fixedly installed at the middle of the top of the plug block, and a control handle is fixedly installed at the top of the connecting rod, so that the control handle can be pulled upward to drive the plug block to move upward.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. This kind of welding fixture for heat exchanger is provided with a clamping assembly at the top of one end of the mobile base, and a brake assembly is provided inside the mobile base, so that the clamping assembly can clamp the bent pipe of the heat exchanger, and then the mobile base is moved to a suitable position, so that the workers can weld the bent pipe. The setting of the telescopic rod is convenient for adjusting the bent pipe to a suitable height for welding. A rotating handle is fixedly installed at one end of the rotating shaft, and a clamping cavity is fixedly installed at the other end of the rotating shaft, so that the rotating shaft can be rotated by the rotating handle to adjust the angle of the clamping cavity, so that the bent pipe can be adjusted to a suitable angle for welding. The threads at the two ends of the outer side of the threaded rod are in opposite directions, and the threaded rod is threadedly connected to the threaded hole, so that the threaded rod can be rotated to make the two clamping blocks approach or move away from each other, so as to achieve the function of clamping and fixing the bent pipe. Rubber pads are fixedly installed on the opposite sides of the two clamping blocks, so as to improve the stability of the two clamping blocks in clamping and fixing the bent pipe.

[0023] 2. This type of tooling fixture for welding the heat exchanger is fixedly connected to the inner side of the sliding cavity through the top of the reset spring, and a protrusion is fixedly installed in the middle of one side of the sliding block, which is convenient for the reset spring to push the plug block downward, so that the plug block pushes the two sliding blocks to both sides, so that the protrusion slides outward and engages with the positioning groove, thereby fixing the position of the brake block, making the bottom of the brake block contact and abut against the ground, thereby fixing the position of the movable base, and facilitating the welding of the bent pipe; the utility model can effectively clamp and fix the bent pipe, and can adjust the bent pipe to a suitable height and angle for welding, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of a welding fixture for a heat exchanger of the utility model;

[0025] Figure 2 This is an exploded view of a fixture for welding a heat exchanger according to the utility model;

[0026] Figure 3 It is an exploded view of the clamping assembly of the utility model;

[0027] Figure 4 It is an exploded view of the brake assembly of the utility model.

[0028] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0029] 101, mobile base; 10101, base body; 10102, bull's eye universal wheel; 10103, telescopic rod slot; 10104, brake slot; 10105, positioning slot; 10106, limit slot; 102, clamping assembly; 10201, telescopic rod; 10202, rotating sleeve; 10203, rotating shaft; 10204, rotating handle; 10205, clamping cavity; 10206, clamping block; 10207, rubber pad; 102 08, knob; 10209, limit slide groove; 10210, threaded hole; 10211, threaded rod; 103, brake assembly; 10301, brake block; 10302, limit block; 10303, handle; 10304, bump; 10305, sliding block; 10306, push spring; 10307, ​​insert block; 10308, connecting rod; 10309, control handle; 10310, return spring; 10311, sliding cavity. DETAILED DESCRIPTION

[0030] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] Example:

[0032] As attached Figure 1 To Attachment Figure 4 As shown:

[0033] The utility model provides a welding fixture for a heat exchanger, comprising a mobile base 101, a clamping assembly 102 is provided on the top of one end of the mobile base 101, and a brake assembly 103 is provided inside the mobile base 101. The clamping assembly 102 is provided on the top of one end of the mobile base 101, and the brake assembly 103 is provided inside the mobile base 101, so that the clamping assembly 102 can clamp the bent pipe of the heat exchanger, and then the mobile base 101 can be moved to a suitable position, so that the workers can weld the bent pipe conveniently. The clamping assembly 102 comprises a telescopic rod 10201, and the telescopic rod 10202 is provided on the top of one end of the mobile base 101. A rotating sleeve 10202 is fixedly installed on the top of the telescopic rod 10201. Through the setting of the telescopic rod 10201, it is convenient to adjust the elbow to a suitable height for welding. The rotating sleeve 10202 is rotatably connected with a rotating shaft 10203 inside. A rotating handle 10204 is fixedly installed at one end of the rotating shaft 10203, and a clamping cavity 10205 is fixedly installed at the other end of the rotating shaft 10203. By fixing the rotating handle 10204 at one end of the rotating shaft 10203 and fixing the clamping cavity 10205 at the other end of the rotating shaft 10203, it is convenient to use The rotating shaft 10203 is rotated by rotating the handle 10204 to adjust the angle of the clamping cavity 10205, so as to facilitate adjusting the bent pipe to a suitable angle for welding. A limiting slide groove 10209 is provided on one side of the clamping cavity 10205. Two clamping blocks 10206 are slidably connected inside the limiting slide groove 10209. A threaded hole 10210 is provided at one end of the clamping block 10206. A threaded rod 10211 is rotatably connected inside the clamping cavity 10205. The threads at the two ends of the outer side of the threaded rod 10211 are in opposite directions, and the threaded rod 10211 and the threaded hole 10210 are connected to each other. 10 is threadedly connected, and the threads at the two ends of the outer side of the threaded rod 10211 are in opposite directions, and the threaded rod 10211 is threadedly connected to the threaded hole 10210, so that the threaded rod 10211 can be rotated to make the two clamping blocks 10206 approach or move away from each other, thereby achieving the function of clamping and fixing the bent pipe. The rubber pads 10207 are fixedly installed on the opposite sides of the two clamping blocks 10206. The rubber pads 10207 are fixedly installed on the opposite sides of the two clamping blocks 10206, so as to improve the stability of the two clamping blocks 10206 in clamping and fixing the bent pipe.

[0034] Among them, a knob 10208 is fixedly installed at one end of the threaded rod 10211, and the knob 10208 is arranged on the outside of the clamping cavity 10205. By fixing the knob 10208 at one end of the threaded rod 10211, and the knob 10208 is arranged on the outside of the clamping cavity 10205, it is convenient to rotate the knob 10208 to realize the function of adjusting the position of the clamping block 10206, so that the clamping block 10206 can clamp and fix the bent pipe.

[0035] Among them, the mobile base 101 includes a base body 10101, a telescopic rod groove 10103 is opened at the top of one end of the base body 10101, a brake groove 10104 is opened at the other end of the base body 10101, the brake assembly 103 is arranged inside the brake groove 10104, the telescopic rod groove 10103 is fixedly connected to the telescopic rod 10201, and a bull's eye universal wheel 10102 is fixedly installed at the bottom of the base body 10101, which is fixedly connected to the telescopic rod 10201 through the telescopic rod groove 10103. The bull's eye universal wheel 10102 is fixedly installed at the bottom of the base body 10101, which is convenient for fixing the clamping assembly 102 with the mobile base 101, and convenient for moving the device to a suitable position, which is convenient for welding.

[0036] Among them, the brake assembly 103 includes a brake block 10301, which is slidably connected to the brake groove 10104. A handle 10303 is fixedly installed on the top of the brake block 10301. Limiting grooves 10106 are opened on both sides of the bottom of the brake groove 10104. Limiting blocks 10302 are fixedly installed on both sides of the bottom of the brake block 10301. By opening the limiting grooves 10106 on both sides of the bottom of the brake groove 10104 and fixing the limiting blocks 10302 on both sides of the bottom of the brake block 10301, it is convenient to use the handle 10303 to lift the brake block 10301 upward to avoid pulling out the brake block 10301.

[0037] Among them, a positioning groove 10105 is opened in the middle of the inner side of the brake groove 10104, a sliding cavity 10311 is opened in the middle of the brake block 10301, and two sliding blocks 10305 and an insert block 10307 are slidably connected inside the sliding cavity 10311. Reset springs 10310 are fixedly installed at both ends of the top of the insert block 10307. The top of the reset spring 10310 is fixedly connected to the inner side of the sliding cavity 10311. A convex block 10304 is fixedly installed in the middle of one side of the sliding block 10305, and the top of the reset spring 10310 is connected to the sliding cavity through the top of the reset spring 10310. 10311 is fixedly connected on the inner side, and a protrusion 10304 is fixedly installed in the middle of one side of the sliding block 10305, so that the return spring 10310 pushes the plug block 10307 downward, so that the plug block 10307 pushes the two sliding blocks 10305 to both sides, so that the protrusion 10304 slides outward and engages with the positioning groove 10105, thereby fixing the position of the brake block 10301, and making the bottom of the brake block 10301 contact and abut against the ground, thereby fixing the position of the movable base 101, which is convenient for welding the bent pipe.

[0038] Among them, the sliding block 10305 is provided with a push spring 10306 fixedly installed at both ends of one side of the protrusion 10304, and the other end of the push spring 10306 is fixedly connected to the inner side of the sliding cavity 10311. The sliding block 10305 is provided with a push spring 10306 fixedly installed at both ends of one side of the protrusion 10304, and the other end of the push spring 10306 is fixedly connected to the inner side of the sliding cavity 10311. When the plug-in block 10307 is moved upward, the push spring 10306 can push the protrusion 10304 to slide toward the inside of the brake block 10301, thereby releasing the engagement between the protrusion 10304 and the positioning groove 10105, and facilitating the use of the handle 10303 to pull the brake block 10301 upward to release the fixation of the position of the mobile base 101.

[0039] Among them, a connecting rod 10308 is fixedly installed in the middle of the top of the plug block 10307, ​​and a control handle 10309 is fixedly installed on the top of the connecting rod 10308. The connecting rod 10308 is fixedly installed in the middle of the top of the plug block 10307, ​​and the control handle 10309 is fixedly installed on the top of the connecting rod 10308, so that the control handle 10309 can be pulled upward to drive the plug block 10307 to move upward.

[0040] The specific usage and function of this embodiment are as follows:

[0041] When using this product, first check whether the connection of the device is tight. Through the setting of the telescopic rod 10201, it is convenient to adjust the elbow to a suitable height for welding. A rotating handle 10204 is fixedly installed at one end of the rotating shaft 10203, and a clamping cavity 10205 is fixedly installed at the other end of the rotating shaft 10203. It is convenient to use the rotating handle 10204 to rotate the rotating shaft 10203, so as to adjust the angle of the clamping cavity 10205, so as to adjust the elbow to a suitable angle for welding. The threads at the two ends of the outer side of the threaded rod 10211 are in opposite directions, and the threaded rod 10211 is threadedly connected with the threaded hole 10210, so that the threaded rod 10211 is rotated to make the two clamping blocks 10206 move closer to or away from each other, thereby achieving The bent pipe is now clamped and fixed. A knob 10208 is fixedly installed at one end of the threaded rod 10211, and the knob 10208 is arranged on the outside of the clamping cavity 10205, so that the knob 10208 can be rotated to adjust the position of the clamping block 10206, so that the clamping block 10206 can clamp and fix the bent pipe. Rubber pads 10207 are fixedly installed on the opposite sides of the two clamping blocks 10206 to improve the stability of the two clamping blocks 10206 in clamping and fixing the bent pipe. The base body 10101 is fixedly connected to the telescopic rod 10201 through the telescopic rod groove 10103. A bull's eye universal wheel 10102 is fixedly installed on the bottom of the base body 10101, so that the clamping assembly 102 is fixedly connected to the mobile base 101, and it is convenient to fix the clamping assembly 102 to the mobile base 101. The device is moved to a suitable position for convenient welding. The top of the return spring 10310 is fixedly connected to the inner side of the sliding cavity 10311. A protrusion 10304 is fixedly installed in the middle of one side of the sliding block 10305, which is convenient for the return spring 10310 to push the plug block 10307 downward, so that the plug block 10307 pushes the two sliding blocks 10305 to both sides, so that the protrusion 10304 slides outward and engages with the positioning groove 10105, thereby fixing the position of the brake block 10301, making the bottom of the brake block 10301 contact and abut against the ground, thereby fixing the position of the mobile base 101, and facilitating the welding of the bent pipe. A connecting rod 10308 is fixedly installed in the middle of the top of the plug block 10307. The connecting rod 10308 A control handle 10309 is fixedly installed on the top, so that the control handle 10309 can be pulled upward to drive the plug 10307 to move upward. The sliding block 10305 is provided with a protrusion 10304 on one side and a push spring 10306 is fixedly installed at both ends. The other end of the push spring 10306 is fixedly connected to the inner side of the sliding cavity 10311. When the plug 10307 is moved upward, the push spring 10306 can push the protrusion 10304 to slide toward the inside of the brake block 10301, thereby releasing the engagement between the protrusion 10304 and the positioning groove 10105, so that the handle 10303 can be used to pull the brake block 10301 upward to release the fixation of the position of the mobile base 101. Limiting grooves 10106 are provided on both sides of the bottom of the brake groove 10104.Limiting blocks 10302 are fixedly installed on both sides of the bottom of the brake block 10301, so as to prevent the brake block 10301 from being pulled out when the brake block 10301 is lifted upward by the handle 10303.

[0042] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A heat exchanger welding fixture, characterized in that: The invention comprises a mobile base (101), a clamping assembly (102) is provided at the top of one end of the mobile base (101), and a brake assembly (103) is provided inside the mobile base (101), the clamping assembly (102) comprises a telescopic rod (10201), a rotating sleeve (10202) is fixedly installed on the top of the telescopic rod (10201), a rotating shaft (10203) is rotatably connected inside the rotating sleeve (10202), a rotating handle (10204) is fixedly installed at one end of the rotating shaft (10203), and a clamping cavity (10204) is fixedly installed at the other end of the rotating shaft (10203). 5), a limiting slide groove (10209) is provided on one side of the clamping cavity (10205), and two clamping blocks (10206) are slidably connected inside the limiting slide groove (10209), and a threaded hole (10210) is provided at one end of the clamping block (10206), and a threaded rod (10211) is rotatably connected inside the clamping cavity (10205), and the threads at the two ends of the outer side of the threaded rod (10211) are in opposite directions, and the threaded rod (10211) is threadedly connected to the threaded hole (10210), and a rubber pad (10207) is fixedly installed on the opposite side of the two clamping blocks (10206).

2. A heat exchanger welding fixture as claimed in claim 1, characterized in that: A knob (10208) is fixedly mounted on one end of the threaded rod (10211), and the knob (10208) is arranged outside the clamping cavity (10205).

3. A heat exchanger welding fixture as claimed in claim 1, characterized in that: The mobile base (101) comprises a base body (10101), a telescopic rod groove (10103) is provided at the top of one end of the base body (10101), a brake groove (10104) is provided at the other end of the base body (10101), the brake assembly (103) is arranged inside the brake groove (10104), the telescopic rod groove (10103) is fixedly connected to the telescopic rod (10201), and a bull's eye universal wheel (10102) is fixedly installed at the bottom of the base body (10101).

4. A heat exchanger welding fixture as claimed in claim 3, characterized in that: The brake assembly (103) comprises a brake block (10301), the brake block (10301) is slidably connected to the brake groove (10104), a handle (10303) is fixedly installed on the top of the brake block (10301), limiting grooves (10106) are provided on both sides of the bottom of the brake groove (10104), and limiting blocks (10302) are fixedly installed on both sides of the bottom of the brake block (10301).

5. A heat exchanger welding fixture as claimed in claim 4, characterized in that: A positioning groove (10105) is provided in the middle of the inner side of the brake groove (10104), and a sliding cavity (10311) is provided in the middle of the brake block (10301). Two sliding blocks (10305) and an insert block (10307) are slidably connected inside the sliding cavity (10311). Return springs (10310) are fixedly installed at both ends of the top of the insert block (10307). The top of the return spring (10310) is fixedly connected to the inner side of the sliding cavity (10311), and a protrusion (10304) is fixedly installed in the middle of one side of the sliding block (10305).

6. A heat exchanger welding fixture as claimed in claim 5, characterized in that: The sliding block (10305) is provided with a protrusion (10304) on one side with push springs (10306) fixedly installed at both ends, and the other end of the push spring (10306) is fixedly connected to the inner side of the sliding cavity (10311).

7. A heat exchanger welding fixture as claimed in claim 5, characterized in that: A connecting rod (10308) is fixedly installed at the middle of the top end of the plug block (10307), and a control handle (10309) is fixedly installed at the top end of the connecting rod (10308).

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