Automobile engine pipe fitting welding tool

Abstract

The invention discloses an automobile engine pipe fitting welding tool, and particularly relates to the technical field of automobile pipe fitting welding, according to the automobile engine pipe fitting welding tool, a supporting piece in a through groove and an arc-shaped supporting seat are used for bearing a conveyed engine pipe fitting, the arc-shaped supporting seat is used for bearing the edge of the engine pipe fitting, and cylindrical shells in storage cavities on the two sides slide towards the arc-shaped supporting seat; when the diameter of the engine pipe fitting is smaller than that of the arc-shaped supporting seat, the multi-stage linkage guide rail is unfolded, the end face of the cylindrical shell and the convex ring make contact with the arc-shaped supporting seat, the end of the engine pipe fitting enters the convex ring, and the two engine pipe fittings are attached through sliding; the outer surface of the bottom of the engine pipe fitting makes contact with the lower inner wall face of the convex ring, after the engine pipe fitting is synchronously clamped, the height of the engine pipe fitting is increased to the center position of the driving piece, then the transmission plate vertically moves downwards, the engine pipe fitting is continuously supported by the supporting piece and the arc-shaped supporting base, alignment of the center of the engine pipe fitting is not needed, alignment time is saved, and efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile pipe welding, in particular to an automobile engine pipe welding tool. Background Art

[0002] There are many pipes with different functions assembled on the engine. These pipes need to be welded together due to their insufficient length during production. However, in order to ensure the welding quality, welding tools are usually used to position, clamp and support the engine pipes during welding.

[0003] After searching, the invention patent with publication number CN117900754A discloses a tool for welding automobile engine pipe fittings. Since the positioning bar will move in an arc, one end of the C-shaped part will rotate in the guide seat and drive the guide block to slide in the guide groove along the direction of the guide rod, so that the pipe fitting can be stably positioned. The welding tool can stably position pipe fittings of different diameters, avoid the problem of pipe fittings offset during welding, and thus improve the welding quality.

[0004] In the existing solution, the engine pipe fittings are placed into the placement grooves manually or by machines. Before each welding, the positions of the two pipe fittings need to be aligned. The alignment ensures the positions of the two pipe fittings, thereby ensuring the welding quality. However, the alignment step increases the welding time, resulting in reduced welding efficiency. The engine pipe fittings are separated from the welding position due to inertia, resulting in the inability to weld the workpieces at the same time. Summary of the invention

[0005] The purpose of the present invention is to provide a welding tool for automobile engine pipes to solve the problem mentioned in the background technology that each alignment of the engine pipes increases the welding time, resulting in reduced welding efficiency.

[0006] The present invention can be achieved through the following technical solutions:

[0007] A welding tool for automobile engine pipe fittings comprises a double-layer base connected to a reinforced frame, the upper surface of the double-layer base is provided with a conveyor belt 1 and a conveyor belt 2 in opposite directions, and a through groove for welding is provided through the middle of the upper surface of the double-layer base, a discharge belt is provided on the lower surface of the double-layer base, the ends of the conveyor belt 1 and the conveyor belt 2 are adjacent to the through groove, a support member sliding in a vertical direction is installed in the middle of the inner cavity of the through groove, and arc-shaped support seats are slidably provided on the inner edge of the through groove and on both sides of the support member, an installation box is installed on the outer side surface of the upper layer of the double-layer base, and a storage cavity communicating with the through groove and the installation box is provided on the inner side surface of the upper layer of the double-layer base, A transmission plate is installed vertically and slidingly inside the storage cavity, and a multi-stage linkage guide rail is installed on the bottom surface of the transmission plate, and a cylindrical shell close to the arc-shaped support seat is installed on the bottom surface of the multi-stage linkage guide rail, and a driving member is rotatably installed inside the cylindrical shell, and the end surface of the cylindrical shell is in abutment contact with the side surface of the arc-shaped support seat, the center position of the driving member is located in the middle of the inner cavity of the arc-shaped support seat, and a groove is provided in the middle of the end surface of the driving member, and a cleaning rod brush is installed inside the groove, and a convex ring exposed outward is fixed to the end surface of the driving member, and a synchronous clamping assembly for clamping the outer wall of the engine pipe is installed inside the driving member, and the convex ring is rotatably set to the end of the inner wall of the cylindrical shell.

[0008] A further technical improvement of the present invention is that the synchronous clamping assembly includes four clamping blocks that move simultaneously, the end face of the driving member is provided with four clamping grooves, and a main bevel gear driven by a forward and reverse motor is installed inside the driving member, and four driven bevel gears are meshed on the main bevel gear, and a driving screw is rotatably installed inside each of the clamping grooves, the driving screw is fixedly connected to the corresponding driven bevel gear, and the external thread of the driving screw is sleeved with a sliding seat that slides in contact with the inner wall of the clamping groove, and the sliding seat is fixed to the corresponding clamping block.

[0009] A further technical improvement of the present invention is that: the end surface of the convex ring is provided with four notched grooves, the notched grooves are of stepped structure, and the notched grooves are used in conjunction with corresponding clamping blocks.

[0010] A further technical improvement of the present invention lies in that a support cylinder communicating with the storage cavity is installed on the top surface of the upper layer of the double-layer base, an electric push rod 1 for pushing the transmission plate to move vertically is installed inside the support cylinder, an outer side surface of the installation box is provided with a mounting groove for the transmission plate to pass vertically, the transmission plate is arranged in an L-shaped structure, and an electric push rod 2 is horizontally installed on the inner wall surface of the transmission plate, and the pushing end of the electric push rod 2 is connected to a rotating power box installed on the outer wall surface of the cylindrical shell.

[0011] A further technical improvement of the present invention is that: sliding grooves are provided on the inner wall surfaces on both sides of the top of the inner cavity of the through groove, a slider is slidably installed inside each of the sliding grooves, the outer surface of the arc-shaped support seat is fixed to the two sliders, and a spring is installed on the side of each sliding groove close to the support member, and the end of the spring is fixed to the corresponding slider.

[0012] A further technical improvement of the present invention is that a fixed top plate is installed above the double-layer base through supporting columns, a Z-shaped plate pushed by a linear cylinder is installed on the lower surface of the fixed top plate, and two groups of fixing parts are installed at the end of the lower surface of the Z-shaped plate to drop the delivered engine pipes into the through grooves.

[0013] A further technical improvement of the present invention is that the installation directions of the two sets of locking members are opposite, each locking member includes two blocking blocks, the two blocking blocks are respectively located on both sides of the through slot, and one side surface of the blocking block is set to an arc surface.

[0014] A further technical improvement of the present invention is that the support member includes a linear guide rail arranged on the inner wall surface of the through groove, an upper pad is slidably installed on the outside of the linear guide rail, an arc block is rotatably installed on the bottom end of the upper pad, and a transmission shaft driven by a flip motor is arranged between the upper pad and the arc block.

[0015] A further technical improvement of the present invention is that a material dropping slope is arranged between the upper and lower surfaces of the double-layer base, and a side groove for the arc block to rotate and enter is arranged above the material dropping slope.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The engine pipes conveyed are supported by the support members in the through groove and the arc-shaped support seats, wherein the arc-shaped support seats support the edges of the engine pipes. When the engine pipes are stationary, the cylindrical shells in the storage cavities on both sides slide toward the arc-shaped support seats. At this time, the multi-stage linkage guide rails are unfolded. When the cylindrical shell slides, the end face and the convex ring of the cylindrical shell are in contact with the arc-shaped support seats. At this time, the end of the engine pipe enters the inside of the convex ring, and the arc-shaped support seats slide in the through groove, and the contact ends of the two engine pipes fit together, which is convenient for subsequent welding processing and improves the accuracy of welding. The welded engine pipes are supported by the support members. When the welding is completed, a cleaning rod brush is installed in the slot in the middle of the end face of the driving member. The cleaning rod brush moves along the driving member. The moving part moves in the rotation direction, and the supporting part and the arc-shaped supporting seat are cleaned thoroughly to avoid the problem that welding residue affects the alignment of the engine pipe fittings; when the diameter of the engine pipe fittings is smaller than the diameter of the arc-shaped supporting seat, since the convex ring and the arc-shaped supporting seat are at the same height, when the cylindrical shell and the driving part move toward the arc-shaped supporting seat, the bottom outer surface of the engine pipe fitting contacts the lower inner wall surface of the convex ring, and as the synchronous clamping assembly synchronously clamps the engine pipe fittings, the height of the engine pipe fittings is raised to the center position of the driving part, and then the transmission plate slides in the vertical direction, driving the cylindrical shell and the driving part to move down in height, and the engine pipe fittings continue to be supported by the supporting part and the arc-shaped supporting seat, and there is no need to align the center of the engine pipe fittings, thus saving the alignment time and improving the efficiency;

[0018] 2. When the engine pipe is transported to the through slot by conveyor belt 1 and conveyor belt 2 at the same time, when the engine pipe is close to the ends of conveyor belt 1 and conveyor belt 2, the linear cylinder pushes the Z-shaped plate downward, and the Z-shaped plate drives two sets of fixing parts to be located on both sides of the through slot, that is, one engine pipe passes between the two blocking blocks, and one engine pipe is limited to pass through each time, so as to prevent the engine pipe from leaving the inside of the through slot due to inertia, and ensure that the welding of the two engine pipes is carried out simultaneously;

[0019] 3. After the engine pipe is welded in the through groove, the upper pad moves down along the linear guide rail. At this time, the arc block leaves the inside of the through groove. Then the flip motor drives the transmission shaft to rotate, and the arc blocks on both sides open at the same time. The arc block on one side rotates into the side groove, and the arc block on the other side rotates to the top of the blanking slope. The welded engine pipe falls and rolls down the blanking slope and is transported to the next processing step by the discharge belt. The direct falling rolling conveying design is adopted, and there is no need to manually remove the welded workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the structural connection of the partial enlarged view at A in the middle;

[0023] Figure 3 It is a schematic diagram of the internal structure of the driving member of the present invention;

[0024] Figure 4 It is a cross-sectional view of the installation box of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional installation structure of the Z-shaped plate and the blocking block of the present invention;

[0026] Figure 6 It is a schematic diagram of the installation structure of the sliding support block and the slide groove of the present invention;

[0027] Figure 7 It is a schematic diagram of the installation structure of the arc block and the upper pad block of the present invention.

[0028] In the figure: 1. double-layer base; 2. conveyor belt 1; 3. conveyor belt 2; 4. support cylinder; 5. discharge belt; 6. installation box; 7. storage chamber; 8. transmission plate; 9. electric push rod 1; 10. cylinder shell; 11. driving member; 12. notch groove; 13. clamping block; 14. through groove; 15. slide groove; 16. arc-shaped support seat; 17. upper pad; 18. clamping groove; 19. driven bevel gear; 20. driving screw; 22. installation groove; 23. electric push rod 2; 24. multi-stage linkage guide rail; 25. convex ring; 26. Z-shaped plate; 27. blocking block; 28. spring; 29. ​​arc block; 30. transmission shaft; 31. side groove; 32. blanking slope; 33. linear guide rail. DETAILED DESCRIPTION

[0029] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0030] See also Figure 1-Figure 7As shown, the present invention provides a welding tool for automobile engine pipe fittings, including a double-layer base 1 connected to a reinforced frame, the upper surface of the double-layer base 1 is provided with a conveyor belt 1 2 and a conveyor belt 2 3 in opposite directions, and a through groove 14 for welding is provided through the middle of the upper surface of the double-layer base 1, a discharge belt 5 is provided on the lower surface of the double-layer base 1, the ends of the conveyor belt 1 2 and the conveyor belt 2 3 are adjacent to the through groove 14, a support member sliding in the vertical direction is installed in the middle of the inner cavity of the through groove 14, and an arc-shaped support seat 16 is slidably provided on the inner edge of the through groove 14 and on both sides of the support member, an installation box 6 is installed on the outer side surface of the upper layer of the double-layer base 1, and the inner side surface of the upper layer of the double-layer base 1 is provided A storage chamber 7 is provided which is communicated with the through groove 14 and the installation box 6. A transmission plate 8 is vertically slidably installed inside the storage chamber 7. A multi-stage linkage guide rail 24 is installed on the bottom surface of the transmission plate 8. A cylindrical shell 10 close to the arc-shaped support seat 16 is installed on the bottom surface of the multi-stage linkage guide rail 24. A driving member 11 is rotatably installed inside the cylindrical shell 10, and the end surface of the cylindrical shell 10 is in contact with the side surface of the arc-shaped support seat 16. The center position of the driving member 11 is located in the middle of the inner cavity of the arc-shaped support seat 16, and a card groove is provided in the middle of the end surface of the driving member 11. A convex ring 25 exposed outward is fixed to the end surface of the driving member 11, and a same-shaped card groove for fixing the outer wall of the engine pipe fitting is installed inside the driving member 11. The step clamping assembly, the convex ring 25 and the inner wall end of the cylindrical shell 10 are rotatably set. Initially, the engine pipe parts are respectively transported to the through groove 14 by the conveyor belt 1 2 and the conveyor belt 2 3, and the engine pipe parts transported are supported by the support members in the through groove 14 and the arc-shaped support seat 16, wherein the arc-shaped support seat 16 supports the edge of the engine pipe parts. It should be noted that the inner diameter of the convex ring 25 is the same as the diameter of the arc-shaped support seat 16. Initially, since the cylindrical shell 10 is stored in the storage cavity 7, the engine pipe parts are prevented from entering the through groove 14 and causing motion interference. When the engine pipe parts are stationary, the cylindrical shells 10 in the storage cavities 7 on both sides slide toward the arc-shaped support seat 16. At this time The multi-stage linkage guide rail 24 is unfolded. When the cylindrical shell 10 slides, the end surface of the cylindrical shell 10 and the convex ring 25 are in contact with the arc support seat 16. At this time, the end of the engine pipe enters the interior of the convex ring 25, and the arc support seat 16 slides in the through groove 14, and the contact ends of the two engine pipes are fitted together, which is convenient for subsequent welding processing and improves the accuracy of welding. The welded engine pipe is supported by the support member. After welding, a cleaning rod brush is installed in the groove in the middle of the end surface of the driving member 11. The cleaning rod brush moves along the rotation direction of the driving member 11 to thoroughly clean the support member and the arc support seat 16 to avoid the problem of welding residue affecting the alignment of the engine pipe.When the diameter of the engine pipe is smaller than the diameter of the arc-shaped support seat 16, since the convex ring 25 is at the same height as the arc-shaped support seat 16, when the cylindrical shell 10 and the driving member 11 move toward the arc-shaped support seat 16, the bottom outer surface of the engine pipe contacts the lower inner wall surface of the convex ring 25, and as the synchronous clamping assembly synchronously clamps the engine pipe, the height of the engine pipe is raised to the center position of the driving member 11, and then the transmission plate 8 slides in the vertical direction, driving the cylindrical shell 10 and the driving member 11 to move down in height, and the engine pipe continues to be supported by the support member and the arc-shaped support seat 16, and there is no need to align the center of the engine pipe, saving alignment time and improving efficiency. ;

[0031] See also Figure 2 and Figure 3 As shown, the synchronous clamping assembly includes four clamping blocks 13 that move simultaneously, four clamping grooves 18 are provided on the end face of the driving member 11, and a main bevel gear driven by a forward and reverse motor is installed inside the driving member 11, and four driven bevel gears 19 are meshed on the main bevel gear, and a driving screw 20 is rotatably installed inside each clamping groove 18, and the driving screw 20 is fixedly connected to the corresponding driven bevel gear 19, and the external thread of the driving screw 20 is sleeved with a slide seat that slides and fits with the inner wall of the clamping groove 18, and the slide seat is fixed to the corresponding clamping block 13; the end face of the convex ring 25 is provided with four notch grooves 12, and the notch grooves 12 are fixed to the inner wall of the clamping groove 18. The notch 12 is a stepped structure, and the notch 12 is used in conjunction with the corresponding clamping block 13. Initially, the clamping block 13 is located in the notch 12. When the end of the engine pipe enters the convex ring 25, the forward and reverse motors drive the main bevel gear to rotate in the forward direction. At the same time, the four driven bevel gears 19 rotate synchronously and drive the driving screw 20 to rotate in the corresponding clamping groove 18. Due to the threaded connection between the driving screw 20 and the slide seat, the slide seat drives the clamping block 13 to leave the notch 12 and move toward the middle of the driving member 11, thereby synchronously clamping the outer surface of the engine pipe to maintain consistency.

[0032] See also Figure 1 and Figure 4As shown, a support cylinder 4 communicating with the storage chamber 7 is installed on the top surface of the upper layer of the double-layer base 1, and an electric push rod 9 for pushing the transmission plate 8 to move vertically is installed inside the support cylinder 4. The outer side surface of the installation box 6 is provided with a mounting groove 22 for the transmission plate 8 to vertically pass through. The transmission plate 8 is set as an L-shaped structure, and an electric push rod 23 is horizontally installed on the inner wall of the transmission plate 8. The pushing end of the electric push rod 23 is connected to a rotating power box installed on the outer wall of the cylindrical shell 10. When the engine pipe is placed in the support member and the arc-shaped support seat 16, the electric push rod 23 pushes the rotating power box. At this time, the cylindrical shell 10 is subjected to thrust so that the multi-stage linkage guide The rail 24 is extended, and the multi-stage linkage guide rail 24 assists in supporting the sliding of the cylindrical shell 10. When the end of the engine pipe enters the convex ring 25, when the diameter of the engine pipe is smaller than the diameter of the arc-shaped support seat 16, due to the simultaneous movement of the four clamping blocks 13, the height of the engine pipe is raised, and the electric push rod 9 pushes the transmission plate 8 downward, so that the engine pipe clamped by the driving member 11 in the cylindrical shell 10 moves downward together, until the support member and the arc-shaped support seat 16 contact the bottom outer surface of the engine pipe. During welding, the driving member 11 is rotated in the cylindrical shell 10 by rotating the power box, driving the engine pipe to rotate together, and a circle of welding is achieved.

[0033] See also Figure 2 and Figure 6 As shown, both inner wall surfaces on both sides of the top of the inner cavity of the through groove 14 are provided with slide grooves 15, and a slider is slidably installed inside each slide groove 15. The outer surface of the arc-shaped support seat 16 is fixed to the two sliders, and a spring 28 is installed on the side of each slide groove 15 close to the support member. The end of the spring 28 is fixed to the corresponding slider. When the cylindrical shell 10 approaches the arc-shaped support seat 16, it pushes the arc-shaped support seat 16 to slide in the through groove 14. When sliding, the slider squeezes the spring 28 in the slide groove 15 to facilitate the fitting of the end of the engine pipe. After welding, the cylindrical shell 10 returns to the storage cavity 7, the spring 28 resets and pushes the arc-shaped support seat 16 to move to the initial position, and the welded engine pipe is supported by the support member.

[0034] See also Figure 1 and Figure 5As shown, a fixed top plate is installed above the double-layer base 1 through a supporting column, and a Z-shaped plate 26 driven by a linear cylinder is installed on the lower surface of the fixed top plate, and two groups of fixing members are installed at the end of the lower surface of the Z-shaped plate 26 to drop the transmitted engine pipe fittings into the through groove 14; the installation directions of the two groups of fixing members are opposite, and each fixing member includes two blocking blocks 27, and the two blocking blocks 27 are respectively located on both sides of the through groove 14, and one side surface of the blocking block 27 is set to an arc surface. Before welding, when the conveyor belt 1 2 and the conveyor belt 2 3 simultaneously convey the engine pipe fittings to the through groove 14, when the engine pipe fittings are adjacent to the ends of the conveyor belts 1 2 and the conveyor belts 2 3, the linear cylinder pushes the Z-shaped plate 26 downward, and the Z-shaped plate 26 drives the two groups of fixing members to be located on both sides of the through groove 14, that is, one engine pipe fitting passes between the two blocking blocks 27, and one engine pipe fitting is limited to pass through each time to prevent the engine pipe fittings from leaving the inside of the through groove 14 due to inertia.

[0035] See also Figure 2 and Figure 7 As shown, the support member includes a linear guide rail 33 arranged on the inner wall surface of the through groove 14, an upper pad 17 is slidably installed on the outside of the linear guide rail 33, an arc block 29 is rotatably installed on the bottom end of the upper pad 17, and a transmission shaft 30 driven by a flip motor is arranged between the upper pad 17 and the arc block 29; a blanking slope 32 is arranged between the upper and lower surfaces of the double-layer base 1, and a side groove 31 for the arc block 29 to rotate and enter is arranged above the blanking slope 32. When the two engine pipes are welded in the through groove 14, the upper pad 17 is rotated along with the arc block 29. The linear guide 33 moves down to a certain height, and the arc block 29 leaves the inside of the through groove 14 at this time. Then the turning motor drives the transmission shaft 30 to rotate, and the arc blocks 29 on both sides are opened at the same time. The arc block 29 on one side rotates into the side groove 31, and the arc block 29 on the other side rotates to the top of the blanking slope 32. The welded engine pipe falls and rolls along the blanking slope 32, and is transported to the next processing step by the discharge belt 5. There is no need to manually take out the welded workpiece. The direct falling rolling conveying design is adopted, and the structural design is reasonable to improve efficiency.

[0036] When the present invention is in use, first, the conveyor belt 1 2 and the conveyor belt 2 3 simultaneously convey the engine pipe to the through slot 14. When the engine pipe is close to the ends of the conveyor belt 1 2 and the conveyor belt 2 3, the linear cylinder pushes the Z-shaped plate 26 downward, and the Z-shaped plate 26 drives the two sets of fixing members to be located at both sides of the through slot 14, that is, one engine pipe passes between the two blocking blocks 27, and one engine pipe is limited to pass through each time, so as to prevent the engine pipe from leaving the inside of the through slot 14 due to inertia;

[0037] Next, the engine pipes transported are supported by the support members in the through groove 14 and the arc-shaped support seats 16, wherein the arc-shaped support seats 16 support the edges of the engine pipes. It should be noted that the inner diameter of the convex ring 25 is the same as the diameter of the arc-shaped support seats 16. When the engine pipes are stationary, the cylindrical shells 10 in the storage chambers 7 on both sides slide toward the arc-shaped support seats 16. At this time, the multi-stage linkage guide rails 24 are unfolded. When the cylindrical shell 10 slides, the end face of the cylindrical shell 10 and the convex ring 25 are in contact with the arc-shaped support seats 16. At this time, the end of the engine pipe enters the interior of the convex ring 25, and the arc-shaped support seats 16 slide in the through groove 14, and make the contact ends of the two engine pipes fit together, which is convenient for subsequent welding processing and improves the accuracy of welding. The welded engine pipes are supported by the support members. When the welding is completed, the middle of the end face of the driving member 11 is A cleaning rod brush is installed in the slot, and the cleaning rod brush moves along the rotation direction of the driving member 11 to thoroughly clean the support member and the arc-shaped support seat 16, thereby avoiding the problem that welding residue affects the alignment of the engine pipe fittings; when the diameter of the engine pipe fittings is smaller than the diameter of the arc-shaped support seat 16, since the convex ring 25 is at the same height as the arc-shaped support seat 16, when the cylindrical shell 10 and the driving member 11 move toward the arc-shaped support seat 16, the bottom outer surface of the engine pipe fitting contacts the lower inner wall surface of the convex ring 25, and as the synchronous clamping assembly synchronously clamps the engine pipe fittings, the height of the engine pipe fittings is raised to the center position of the driving member 11, and then the transmission plate 8 slides in the vertical direction, driving the cylindrical shell 10 and the driving member 11 to move down in height, and the engine pipe fittings continue to be supported by the support member and the arc-shaped support seat 16, and there is no need to align the center of the engine pipe fittings, thus saving the alignment time and improving the efficiency;

[0038] Finally, after the engine pipe is welded in the through groove 14, the upper pad 17 moves down along the linear guide 33, and the arc block 29 leaves the inside of the through groove 14 at this time. Then the turning motor drives the transmission shaft 30 to rotate, and the arc blocks 29 on both sides are opened at the same time. The arc block 29 on one side rotates into the side groove 31, and the arc block 29 on the other side rotates to the top of the blanking slope 32. The welded engine pipe falls and rolls along the blanking slope 32, and is transported to the next processing step by the discharge belt 5. The direct falling rolling conveying design is adopted, and there is no need to manually remove the welded workpiece.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A welding tool for automobile engine pipe fittings, characterized in that: The invention comprises a double-layer base (1) connected to a reinforcement frame, wherein the upper surface of the double-layer base (1) is provided with a conveyor belt 1 (2) and a conveyor belt 2 (3) in opposite directions, and a through groove (14) for welding is provided through the middle of the upper surface of the double-layer base (1), and a discharge belt (5) is provided on the lower surface of the double-layer base (1), and the ends of the conveyor belt 1 (2) and the conveyor belt 2 (3) are adjacent to the through groove (14), and a support member sliding in a vertical direction is installed in the middle of the inner cavity of the through groove (14), and arc-shaped support seats (16) are slidably provided on the inner edge of the through groove (14) and on both sides of the support member, and an installation box (6) is installed on the outer side surface of the upper layer of the double-layer base (1), and a storage cavity (7) communicating with the through groove (14) and the installation box (6) is provided on the inner side surface of the upper layer of the double-layer base (1), and the storage cavity (7) is connected to the through groove (14) and the installation box (6). A transmission plate (8) is vertically slidably installed inside the arc-shaped support seat (7), a multi-stage linkage guide rail (24) is installed on the bottom surface of the transmission plate (8), a cylindrical shell (10) close to the arc-shaped support seat (16) is installed on the bottom surface of the multi-stage linkage guide rail (24), a driving member (11) is rotatably installed inside the cylindrical shell (10), and the end surface of the cylindrical shell (10) is in abutment contact with the side surface of the arc-shaped support seat (16), the center position of the driving member (11) is located in the middle of the inner cavity of the arc-shaped support seat (16), and a clamping groove is provided in the middle of the end surface of the driving member (11), a convex ring (25) exposed outwardly is fixed to the end surface of the driving member (11), and a synchronous clamping component for clamping the outer wall of the engine pipe is installed inside the driving member (11), and the convex ring (25) is rotatably arranged with the end of the inner wall surface of the cylindrical shell (10).

2. The automobile engine pipe welding tool according to claim 1, characterized in that: The synchronous clamping assembly comprises four clamping blocks (13) that move simultaneously, the end surface of the driving member (11) is provided with four clamping grooves (18), and a main bevel gear driven by a forward and reverse motor is installed inside the driving member (11), and four driven bevel gears (19) are meshed on the main bevel gear, and a driving screw (20) is rotatably installed inside each of the clamping grooves (18), and the driving screw (20) is fixedly connected to the corresponding driven bevel gear (19), and the external thread of the driving screw (20) is sleeved with a sliding seat that is slidably fitted with the inner wall surface of the clamping groove (18), and the sliding seat is fixed to the corresponding clamping block (13).

3. The automobile engine pipe welding tool according to claim 2, characterized in that: The end surface of the convex ring (25) is provided with four notched grooves (12), the notched grooves (12) are of a stepped structure, and the notched grooves (12) are used in conjunction with corresponding clamping blocks (13).

4. The automobile engine pipe welding tool according to claim 1, characterized in that: A support cylinder (4) communicating with the storage chamber (7) is installed on the top surface of the upper layer of the double-layer base (1); an electric push rod (9) for pushing the transmission plate (8) to move vertically is installed inside the support cylinder (4); an installation groove (22) for the transmission plate (8) to vertically pass through is provided on the outer side surface of the installation box (6); the transmission plate (8) is arranged in an L-shaped structure, and an electric push rod (23) is horizontally installed on the inner wall surface of the transmission plate (8); the pushing end of the electric push rod (23) is connected to a rotating power box installed on the outer wall surface of the cylindrical shell (10).

5. The automobile engine pipe welding tool according to claim 1, characterized in that: Slide grooves (15) are provided on the inner wall surfaces on both sides of the top of the inner cavity of the through groove (14), and a slider is slidably installed inside each of the slide grooves (15). The outer surface of the arc-shaped support seat (16) is fixed to the two sliders, and a spring (28) is installed on the side of each slide groove (15) close to the support member, and the end of the spring (28) is fixed to the corresponding slider.

6. The automobile engine pipe welding tool according to claim 1, characterized in that: A fixed top plate is installed above the double-layer base (1) via a supporting column, a Z-shaped plate (26) driven by a linear cylinder is installed on the lower surface of the fixed top plate, and two groups of fixing parts for dropping the delivered engine pipes into the through grooves (14) are installed at the ends of the lower surface of the Z-shaped plate (26).

7. The automobile engine pipe welding tool according to claim 6, characterized in that: The installation directions of the two sets of locking members are opposite, and each locking member comprises two blocking blocks (27). The two blocking blocks (27) are respectively located on both sides of the through slot (14), and one side surface of the blocking block (27) is set as an arc surface.

8. The automobile engine pipe welding tool according to claim 1, characterized in that: The support member comprises a linear guide rail (33) arranged on the inner wall surface of the through groove (14), an upper pad (17) is slidably mounted on the outside of the linear guide rail (33), an arc block (29) is rotatably mounted on the bottom end of the upper pad block (17), and a transmission shaft (30) driven by a flip motor is arranged between the upper pad block (17) and the arc block (29).

9. The automobile engine pipe welding tool according to claim 8, characterized in that: A material dropping slope (32) is provided between the upper and lower surfaces of the double-layer base (1), and a side groove (31) for the arc block (29) to rotate and enter is provided above the material dropping slope (32).

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