Exhaust pipe welding and fixing tool

Abstract

The utility model discloses an exhaust pipe welding fixing tool, and relates to the field of fixing tools, the exhaust pipe welding fixing tool comprises a fixing tool main body used for fixing an exhaust pipe, a sensing assembly is fixedly arranged at the top end of a base of the fixing tool main body, and the sensing assembly comprises a support arranged on the base of the fixing tool main body through a bolt; the exhaust pipe is located in the support, and screw rods are arranged on the two sides of the support through threads. The exhaust pipe is clamped in the induction assembly during welding, the temperature of the outer end of the exhaust pipe is inducted through the temperature sensor, the expansion condition of the exhaust pipe is reflected through stress of the pressure sensor, detection data of the temperature sensor and the pressure sensor are visually displayed on the display screen, and meanwhile the detection data of the temperature sensor and the pressure sensor are transmitted to the controller. And the controller adjusts the heat dissipation efficiency of the heat dissipation assembly on the basis, so that the heating expansion of the exhaust pipe is more intuitive, and the heat dissipation efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of fixing tooling, in particular to an exhaust pipe welding fixing tooling. Background Art

[0002] The exhaust pipe is an important component of the automobile exhaust system. Its function is to discharge the exhaust gas generated during the driving of the car into the air. The exhaust pipe is generally made of stainless steel and needs to be welded during the production and processing.

[0003] When welding an automobile exhaust pipe, a fixing device is needed to fix the exhaust pipe to prevent it from shaking during the welding process. For example, a welding fixing tool for an exhaust pipe with a publication number of CN210435638U is disclosed in the prior art.

[0004] During the welding process, the exhaust pipe will be affected by high temperature, and the metal exhaust pipe is very easy to expand due to the heat. However, the fixed tooling in the prior art cannot intuitively observe the expansion of the exhaust pipe, and cannot dissipate heat according to the expansion. Therefore, the heat dissipation effect needs to be improved. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an exhaust pipe welding fixing tool, which senses the temperature of the outer end of the exhaust pipe through a temperature sensor, and uses the force of a pressure sensor to reflect the expansion of the exhaust pipe. The detection data of the two are transmitted to a controller, and the controller adjusts the heat dissipation efficiency of the heat dissipation component based on this, which can not only make the thermal expansion of the exhaust pipe more intuitive, but also improve the heat dissipation efficiency, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an exhaust pipe welding fixture, comprising a fixture body for fixing the exhaust pipe, a sensing component is fixedly arranged on the top of the base of the fixture body, and the sensing component comprises a bracket arranged on the base of the fixture body by bolts;

[0007] The exhaust pipe is located inside the bracket, and screws are provided on both sides of the bracket through threads, and the two screws extend toward one end of the exhaust pipe into the inside of the bracket and are respectively provided with a first end block and a second end block;

[0008] A second cavity is provided inside the first end block, a detachable end cover is provided at the opening of the second cavity, a pressure sensor located inside the second cavity is fixedly provided on the end cover, an extrusion plate is provided on the side of the pressure sensor facing the exhaust pipe, and a heat-insulating guide rod extending to the outside of the first end block and contacting the outer end of the exhaust pipe is fixedly provided on the extrusion plate;

[0009] A first cavity is provided inside the second end block, a detachable heat conductive sheet is provided at the opening of the first cavity, the side of the heat conductive sheet facing the exhaust pipe contacts the outer end of the exhaust pipe, and a temperature sensor located inside the first cavity is fixed on the heat conductive sheet.

[0010] Furthermore, the second end block is arranged at one end of the corresponding screw rod through a rotating shaft, the end cover is connected to the first end block by bolts, the side of the end cover away from the exhaust pipe is movably connected to the corresponding screw rod through a rotating shaft, and a knob is fixedly provided at one end of the screw rod away from the exhaust pipe.

[0011] Furthermore, a controller is fixedly provided on the top of the base of the fixed tool body, and the temperature sensor and the pressure sensor are both provided at the input end of the controller;

[0012] A protective cover is provided at the top of the bottom end of the fixed tool body through bolts, and the controller is arranged inside the protective cover. The protective cover protects the controller. A display screen is fixedly provided on the top of the protective cover. The display screen is arranged at the output end of the controller, and relevant detection data such as air pressure and pressure are displayed on the display screen.

[0013] Furthermore, at the outer end of the exhaust pipe, each position fixed by the fixing tool body is provided with a group of heat dissipation components, the number of each group of heat dissipation components is two, and the two heat dissipation components in the same group are symmetrically distributed on both sides of the exhaust pipe;

[0014] The heat dissipation component includes a hollow plate fixed on the base of the fixed tooling body by bolts, and detachable fans are provided on both sides of the hollow plate. The fans are arranged at the output end of the controller, and the working efficiency of the fans can be controlled by the controller.

[0015] Furthermore, a wind guide groove is provided on one side of the hollow plate facing the exhaust pipe, and the wind guide groove is communicated with the inner cavity of the hollow plate.

[0016] Furthermore, a plurality of water pipes are fixedly provided on one side of the hollow plate away from the exhaust pipe. The water pipes extend into the cavity of the hollow plate and are fixedly provided with atomizing nozzles, which atomize water and spray it out, thereby improving the cooling efficiency.

[0017] Compared with the prior art, the utility model provides an exhaust pipe welding and fixing tool, which has the following beneficial effects:

[0018] 1. By clamping the exhaust pipe in the sensing assembly while welding, using the temperature sensor to sense the temperature of the outer end of the exhaust pipe, and using the force of the pressure sensor to reflect the expansion of the exhaust pipe, the detection data of the two are intuitively displayed on the display screen. At the same time, the detection data of the two are transmitted to the controller. The controller uses this as a basis to adjust the heat dissipation efficiency of the heat dissipation assembly, which can not only make the thermal expansion of the exhaust pipe more intuitive, but also improve the heat dissipation efficiency.

[0019] 2. The heat dissipation component is arranged at the position where the exhaust pipe is fixed by the fixing tool body, and the heat is dissipated in a targeted manner at the position, which can effectively prevent the exhaust pipe from being deformed at the fixed position due to expansion obstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structure diagram of the utility model;

[0021] Figure 2 This is a structural diagram of the sensing component of the utility model;

[0022] Figure 3 It is a cross-sectional view of the second end block of the utility model;

[0023] Figure 4 It is a cross-sectional view of the first end block of the utility model;

[0024] Figure 5 This is a structural diagram of the sensing component of the utility model;

[0025] Figure 6 It is a cross-sectional view of the hollow plate of the utility model;

[0026] Figure 7 This is an exploded view of the protective cover of the utility model;

[0027] Figure 8 This is a system diagram of the utility model.

[0028] In the figure: 1. Fix the tooling body; 2. Exhaust pipe; 3. Heat dissipation component; 301. Hollow plate; 302. Air guide groove; 303. Fan; 304. Atomizing nozzle; 4. Protective cover; 5. Sensing component; 501. Bracket; 502. Screw; 503. First end block; 504. Second end block; 6. Controller; 7. Display screen; 8. First cavity; 9. Heat conducting sheet; 10. Temperature sensor; 11. End cover; 12. Pressure sensor; 13. Second cavity; 14. Heat insulating guide rod; 15. Extrusion plate. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-8As shown, the utility model provides an exhaust pipe welding fixture, comprising a fixture body 1 for fixing an exhaust pipe 2, a sensing component 5 is fixedly arranged on the top of the base of the fixture body 1, and the sensing component 5 comprises a bracket 501 which is arranged on the base of the fixture body 1 by bolts;

[0031] The exhaust pipe 2 is located inside the bracket 501, and screws 502 are provided on both sides of the bracket 501 through threads. The two screws 502 extend toward one end of the exhaust pipe 2 to the inside of the bracket 501 and are respectively provided with a first end block 503 and a second end block 504;

[0032] During welding, the exhaust pipe 2 is fixed on the fixed tooling body 1, and the bracket 501 fixed on the base of the fixed tooling body 1 is located on the outside of the exhaust pipe 2. At this time, the screw 502 is rotated. Under the action of the thread, the screw 502 moves toward the exhaust pipe 2 and pushes the first end block 503 and the second end block 504, which slightly clamp the exhaust pipe 2. In this way, the exhaust pipe 2 changes in volume after heat expansion, and the sensing component 5 can sense the volume change of the exhaust pipe 2.

[0033] During the welding process, the changes of the exhaust pipe 2 after being heated can be intuitively sensed, such as Figure 2 , 3 , 4, 7, and 8, a second cavity 13 is opened inside the first end block 503, a detachable end cover 11 is provided at the opening of the second cavity 13, a pressure sensor 12 located inside the second cavity 13 is fixedly provided on the end cover 11, a pressing plate 15 is provided on the side of the pressure sensor 12 facing the exhaust pipe 2, a heat-insulating guide rod 14 extending to the outside of the first end block 503 and in contact with the outer end of the exhaust pipe 2 is fixedly provided on the pressing plate 15, and the heat-insulating guide rod 14 can block heat to prevent the high temperature of 2 from damaging the pressure sensor 12;

[0034] A first cavity 8 is opened inside the second end block 504, and a detachable heat conductive sheet 9 is provided at the opening of the first cavity 8. The heat conductive sheet 9 contacts the outer end of the exhaust pipe 2 on the side facing the exhaust pipe 2, and a temperature sensor 10 located inside the first cavity 8 is fixed on the heat conductive sheet 9.

[0035] The second end block 504 is arranged at one end of the corresponding screw rod 502 through a rotating shaft, the end cover 11 is connected to the first end block 503 by bolts, the side of the end cover 11 away from the exhaust pipe 2 is movably connected to the corresponding screw rod 502 through a rotating shaft, and a knob is fixedly provided at one end of the screw rod 502 away from the exhaust pipe 2.

[0036] In a fixed state, the heat conducting sheet 9 on the second end block 504 contacts the outer end of the exhaust pipe 2, and the heat insulating rod 14 on the first end block 503 also contacts the exhaust pipe 2, and the exhaust pipe 2 is clamped therebetween. The exhaust pipe 2 is heated during the welding process, and the temperature of the exhaust pipe 2 can be transmitted to the temperature sensor 10 through the heat conducting sheet 9. The temperature of the exhaust pipe 2 is sensed in real time by the temperature sensor 10. If the exhaust pipe 2 expands due to the heat, the exhaust pipe 2 will push the heat insulating rod 14 during the expansion process, and then push the second cavity 13, and the second cavity 13 will squeeze the pressure sensor 12. The force condition of the pressure sensor 12 reflects the expansion condition of the exhaust pipe 2. The greater the force, the greater the degree of expansion, thereby intuitively reflecting the expansion condition of the exhaust pipe 2, which is used as the basis for heat dissipation and improves the heat dissipation efficiency.

[0037] Pressure and temperature data are displayed directly, such as Figure 1 , 7 As shown in 8, a controller 6 is fixedly provided on the top of the base of the fixed tool body 1, and the temperature sensor 10 and the pressure sensor 12 are both provided at the input end of the controller 6;

[0038] A protective cover 4 is provided at the top of the bottom end of the fixed tool body 1 through bolts. The controller 6 is arranged inside the protective cover 4. The protective cover 4 protects the controller 6. A display screen 7 is fixedly provided on the top of the protective cover 4. The display screen 7 is arranged at the output end of the controller 6. Relevant detection data such as air pressure and pressure are displayed on the display screen 7.

[0039] The temperature and expansion condition of the exhaust pipe 2 are detected by the temperature sensor 10 and the pressure sensor 12 respectively. The detected data are processed by the controller 6 and displayed on the display screen 7, which can be viewed more directly and intuitively.

[0040] Heat is dissipated at key locations of the exhaust pipe 2, such as Figure 1 , 5 As shown in FIGS. 6 and 8 , at the outer end of the exhaust pipe 2, each position fixed by the fixing tool body 1 is provided with a group of heat dissipation components 3, and the number of each group of heat dissipation components 3 is two, and the two heat dissipation components 3 in the same group are symmetrically distributed on both sides of the exhaust pipe 2;

[0041] The heat dissipation assembly 3 includes a hollow plate 301 fixed on the base of the fixed tooling body 1 by bolts, and detachable fans 303 are provided on both sides of the hollow plate 301. The fan 303 is arranged at the output end of the controller 6, and the working efficiency of the fan 303 can be controlled by the controller 6.

[0042] A wind guide groove 302 is formed on one side of the hollow plate 301 facing the exhaust pipe 2 , and the wind guide groove 302 is communicated with the inner cavity of the hollow plate 301 .

[0043] A plurality of water pipes are fixedly provided on one side of the hollow plate 301 away from the exhaust pipe 2. The water pipes extend into the cavity of the hollow plate 301 and are fixedly provided with atomizing nozzles 304, which spray water after atomizing, thereby improving the cooling efficiency.

[0044] During the welding process, the fan 303 drives the external air into the cavity inside the hollow plate 301, and the water pipe also inputs cooling water into the hollow plate 301 and atomizes it under the action of the atomizing nozzle 304. The water mist is mixed with the air and blown out through the air guide groove 302 and blown to the exhaust pipe 2, so as to dissipate the heat of the exhaust pipe 2. During the heat dissipation process, the controller 6 controls the working efficiency of the heat dissipation component 3. When the temperature of the exhaust pipe 2 is higher and the expansion degree is greater, the controller 6 will control the heat dissipation component 3 to make the wind force greater, so as to dissipate the heat of the exhaust pipe 2 according to the actual situation of the heat expansion of the exhaust pipe 2, and flexibly adjust the heat dissipation efficiency;

[0045] Since the heat dissipation component 3 is located at the position where the exhaust pipe 2 is fixed by the fixing tool body 1, the outer end of the exhaust pipe 2 is subjected to the force of the fixing tool body 1 at the fixed position. If the exhaust pipe 2 expands due to heat at this time, the exhaust pipe 2 is very likely to be deformed due to the expansion obstruction. Therefore, compared with other positions, the heat dissipation of the fixed position is more important. Therefore, the heat dissipation component 3 focuses on the heat dissipation of the fixed position of the exhaust pipe 2, which can effectively prevent the exhaust pipe 2 from being deformed.

[0046] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An exhaust pipe welding fixture, comprising a fixture body (1) for fixing an exhaust pipe (2), characterized in that: A sensing component (5) is fixedly provided on the top of the base of the fixed tool body (1), and the sensing component (5) comprises a bracket (501) which is fixed on the base of the fixed tool body (1) by bolts; The exhaust pipe (2) is located inside the bracket (501), and screw rods (502) are provided on both sides of the bracket (501) through threads, and the two screw rods (502) extend toward one end of the exhaust pipe (2) into the inside of the bracket (501) and are respectively provided with a first end block (503) and a second end block (504); A second cavity (13) is provided inside the first end block (503); a detachable end cover (11) is provided at the opening of the second cavity (13); a pressure sensor (12) located inside the second cavity (13) is fixedly provided on the end cover (11); a pressing plate (15) is provided on the side of the pressure sensor (12) facing the exhaust pipe (2); a heat-insulating guide rod (14) is fixedly provided on the pressing plate (15) and extends to the outside of the first end block (503) and contacts the outer end of the exhaust pipe (2); A first cavity (8) is provided inside the second end block (504), a detachable heat conductive sheet (9) is provided at the opening of the first cavity (8), the heat conductive sheet (9) contacts the outer end of the exhaust pipe (2) on one side facing the exhaust pipe (2), and a temperature sensor (10) located inside the first cavity (8) is fixedly provided on the heat conductive sheet (9).

2. The exhaust pipe welding and fixing tool according to claim 1, characterized in that: The second end block (504) is arranged at one end of the corresponding screw rod (502) via a rotating shaft, the end cover (11) is connected to the first end block (503) via bolts, the side of the end cover (11) away from the exhaust pipe (2) is movably connected to the corresponding screw rod (502) via a rotating shaft, and a knob is fixedly provided at one end of the screw rod (502) away from the exhaust pipe (2).

3. The exhaust pipe welding and fixing tool according to claim 1, characterized in that: A controller (6) is fixedly arranged at the top of the base of the fixed tool body (1), and the temperature sensor (10) and the pressure sensor (12) are both arranged at the input end of the controller (6); A protective cover (4) is provided at the top of the bottom end of the fixed tool body (1) via bolts, the controller (6) is arranged inside the protective cover (4), a display screen (7) is fixedly provided at the top of the protective cover (4), and the display screen (7) is arranged at the output end of the controller (6).

4. The exhaust pipe welding and fixing tool according to claim 3, characterized in that: At the outer end of the exhaust pipe (2), each position fixed by the fixing tool body (1) is provided with a group of heat dissipation components (3), the number of heat dissipation components (3) in each group is two, and the two heat dissipation components (3) in the same group are symmetrically distributed on both sides of the exhaust pipe (2); The heat dissipation assembly (3) comprises a hollow plate (301) mounted on the base of the fixed tool body (1) by means of bolts, and detachable fans (303) are provided on both sides of the hollow plate (301), and the fans (303) are arranged at the output end of the controller (6).

5. The exhaust pipe welding and fixing tool according to claim 4, characterized in that: A wind guide groove (302) is provided on one side of the hollow plate (301) facing the exhaust pipe (2), and the wind guide groove (302) is communicated with the internal cavity of the hollow plate (301).

6. The exhaust pipe welding and fixing tool according to claim 5, characterized in that: A plurality of water pipes are fixedly provided on one side of the hollow plate (301) away from the exhaust pipe (2); the water pipes extend into the interior of the cavity of the hollow plate (301) and are fixedly provided with atomizing nozzles (304).

Images