Fixing device for automobile part welding

Abstract

The invention relates to the field of part welding structures, in particular to an automobile part welding fixing device which comprises a bottom frame, a semi-ring silica gel part is mounted on the upper surface of the bottom frame through a fixing and rotating mechanism, a brazing gun is mounted on the upper surface of the bottom frame through a brazing mechanism, and a push-pull L-shaped plate is mounted on the upper surface of the bottom frame through a push-pull mechanism. A small gear is installed on the bottom frame through a driving mechanism, a large gear is installed on the upper surface of the push-pull L-shaped plate through a tooth fixing mechanism, a V-shaped bearing piece is installed on the upper surface of the push-pull L-shaped plate through a bearing mechanism, and a leftward pipe fixing piece and a rightward pipe fixing piece are installed on the rear surface of the large gear through a connecting and fixing mechanism. Arc-shaped exhaust pipes with different pipe diameters can be lifted through the bearing piece, and the arc-shaped exhaust pipes with the different pipe diameters are clamped and fixed through the leftward pipe fixing piece and the rightward pipe fixing piece.

Description

Technical Field

[0001] The invention relates to the field of component welding structures, and in particular to a fixing device for welding automobile components. Background Art

[0002] The automobile exhaust pipe is an important part of the automobile exhaust system. Its main function is to connect the engine exhaust branch pipe and the muffler to ensure that the exhaust system can work smoothly and achieve the effect of vibration reduction and noise reduction. The automobile exhaust pipe, also known as the automobile exhaust bellows or automobile exhaust pipe hose, connects the engine exhaust branch pipe and the muffler. As an important part of the automobile exhaust system, the performance of the automobile exhaust pipe directly affects the overall performance and driving experience of the car.

[0003] Brazing is a welding method that uses liquid brazing filler metal to fill the gap between solid workpieces to connect metals after the brazing filler metal and the workpiece are heated to the melting temperature of the brazing filler metal. During the brazing process, the material is heated to a temperature higher than the filler metal, and the filler metal becomes liquid, covering all mating surfaces and forming a metallurgical bond.

[0004] The existing exhaust pipe is too large to manually rotate the arc exhaust pipe and the straight exhaust pipe to perform all-round seam brazing. In addition, due to the large volume of the exhaust pipe, the existing automatic device can only braze exhaust pipes of a certain diameter, and has low applicability. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a fixing device for welding automobile parts.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a fixing device for welding automobile parts, comprising a chassis, a semi-ring silicone member is installed on the upper surface of the chassis through a fixed rotation mechanism, a brazing gun is installed on the upper surface of the chassis through a brazing mechanism, a push-pull L plate is installed on the upper surface of the chassis through a push-pull mechanism, a small gear is installed on the chassis through a driving mechanism, a large gear is installed on the upper surface of the push-pull L plate through a fixed gear mechanism, a V-supporting member is installed on the upper surface of the push-pull L plate through a supporting mechanism, and a left-direction fixed pipe member and a right-direction fixed pipe member are installed on the rear surface of the large gear through a connecting mechanism;

[0007] The supporting mechanism comprises a telescopic cylinder fixedly mounted on the upper surface of the rear end of the push-pull L-plate, a connecting piece fixedly mounted on the upper surface of the telescopic cylinder, a guide cylinder fixedly mounted on the upper surface of the rear end of the push-pull L-plate, a guide rod movably mounted on the inner surface of the guide cylinder, and the guide rod fixedly mounted on the lower surface of the connecting piece, a triangular fixing groove is opened on the upper surface of the connecting piece, a V-supporting piece is fixedly mounted on the inner surface of the triangular fixing groove, and the arc-shaped exhaust pipe is supported by the V-supporting piece;

[0008] A left-hand threaded member is fixedly installed on the rear surface of the left-hand fixed pipe member, a right-hand threaded member is fixedly installed on the rear surface of the right-hand fixed pipe member, and the right-hand fixed pipe member is movably installed on the lower surface of the left-hand fixed pipe member. A bidirectional threaded rod is movably installed on the inner surfaces of the left-hand threaded member and the right-hand threaded member, and the left-hand fixed pipe member and the right-hand fixed pipe member are controlled by the bidirectional threaded rod to fix and clamp the arc-shaped exhaust pipe.

[0009] Preferably, a connecting plate is fixedly installed on the rear surface of the large gear, two reinforcing ribs are fixedly installed on the upper surface of the connecting plate, and the reinforcing ribs are fixedly installed on the rear surface of the large gear, a fixed motor is fixedly installed on the upper surface of the connecting plate, and the bidirectional threaded rod is fixedly installed on the end of the fixed motor.

[0010] Preferably, the fixed rotation mechanism includes a first fixed frame fixedly mounted on the upper surface of the rear end of the base frame, a first fixed platform fixedly mounted on the rear surface of the first fixed frame, a first motor fixedly mounted on the inner surface of the first fixed platform, and the first motor movably passes through the rear surface of the first fixed frame, a fixing plate fixedly mounted on the end of the first motor, and two semi-ring silicone parts fixedly mounted on the front surface of the fixing plate.

[0011] Preferably, the brazing mechanism comprises a second fixing frame fixedly mounted on the upper surface of the base frame, an inverted fixing piece is mounted inside the second fixing frame, a brazing gun is fixedly mounted on the inner surface of the inverted fixing piece, and the brazing gun is fixedly mounted at the joint between the arc exhaust pipe and the straight exhaust pipe.

[0012] Preferably, the push-pull mechanism comprises a slide rail fixedly mounted on the upper surface of the base frame, a slide table is movably mounted on the inner surface of the slide rail, and the push-pull L-plate is fixedly mounted on the upper surface of the slide table.

[0013] Preferably, a handle is fixedly mounted on the front surface of the push-pull L-plate.

[0014] Preferably, the driving mechanism includes a second fixed platform fixedly mounted on the inner surface of the base frame, a second motor is fixedly mounted on the inner surface of the second fixed platform, the second motor movably passes through the front surface of the base frame, a pinion is fixedly mounted on the end of the second motor, a movable opening is provided on the upper surface of the push-pull L-plate, and the movable opening is provided above the pinion, and the large gear is movably mounted on the inner surface of the movable opening, and the large gear is meshed with the pinion.

[0015] Preferably, the fixed gear mechanism includes a pipe rack fixedly mounted on the upper surface of the front end of the push-pull L-plate, and the pipe rack is installed in front of the movable opening, a fixed shaft is fixedly mounted on the upper surface of the pipe rack, and the large gear is movably sleeved on the outer surface of the fixed shaft.

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

[0017] 1. The present invention can lift arc-shaped exhaust pipes with different diameters through the supporting member, and clamp and fix the arc-shaped exhaust pipes with different diameters through the left-hand fixing pipe member and the right-hand fixing pipe member.

[0018] 2. The two semi-ring silicone parts are fixed to the straight exhaust pipes 35 of different diameters through four contact points, and the fixing plate is driven to rotate by the first motor, thereby driving the straight exhaust pipes sleeved outside the two semi-ring silicone parts to rotate.

[0019] 3. The push-pull L plate is pulled forward by cooperating with the slide table and the slide rail to facilitate the removal of the brazed workpiece from the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a fixing device for welding automobile parts according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of a fixing and rotating mechanism of a fixing device for welding automobile parts according to the present invention;

[0022] Figure 3 A schematic diagram of the brazing mechanism structure of a fixing device for welding automobile parts of the present invention;

[0023] Figure 4 A schematic diagram of the meshing structure of a large gear and a small gear of a fixing device for welding automobile parts of the present invention;

[0024] Figure 5 This is a schematic diagram of the driving mechanism structure of a fixing device for welding automobile parts according to the present invention;

[0025] Figure 6 This is a schematic diagram of the push-pull mechanism structure of a fixing device for welding automobile parts of the present invention;

[0026] Figure 7 This is a schematic structural diagram of a tooth fixing mechanism of a fixing device for welding automobile parts according to the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of a supporting mechanism of a fixing device for welding automobile parts according to the present invention;

[0028] Fig. 9 This is a schematic diagram of the structure of a fixing device for welding automobile parts in use according to the present invention;

[0029] In the figure: 1, base frame; 2, first fixed frame; 3, first fixed platform; 4, first motor; 5, fixed sheet; 6, semi-ring silicone member; 7, second fixed frame; 8, brazing gun; 9, second fixed platform; 10, second motor; 11, push-pull L plate; 12, movable opening; 13, handle; 14, small gear; 15, large gear; 16, fixed shaft member; 17, pipe rack; 18, reinforcing rib; 19, fixed motor; 20, two-way threaded rod; 21, left-hand fixed pipe member; 22, left-hand thread member; 23, right-hand fixed pipe member; 24, right-hand thread member; 25, guide cylinder; 26, guide rod; 27, telescopic cylinder; 28, connecting piece; 29, triangular fixing groove; 30, V-supporting member; 31, slide rail; 32, slide platform; 33, inverted fixing member; 34, arc exhaust pipe; 35, straight exhaust pipe; 36, connecting plate. DETAILED DESCRIPTION

[0030] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0031] like Figure 1-Figure 9 A fixing device for welding automobile parts shown in the figure comprises a chassis 1, a semi-ring silicone member 6 is installed on the upper surface of the chassis 1 through a fixing mechanism, a brazing gun 8 is installed on the upper surface of the chassis 1 through a brazing mechanism, a push-pull L plate 11 is installed on the upper surface of the chassis 1 through a push-pull mechanism, a small gear 14 is installed on the chassis 1 through a driving mechanism, a large gear 15 is installed on the upper surface of the push-pull L plate 11 through a fixed gear mechanism, a V-supporting member 30 is installed on the upper surface of the push-pull L plate 11 through a supporting mechanism, and a left-direction fixed pipe member 21 and a right-direction fixed pipe member 23 are installed on the rear surface of the large gear 15 through a connecting mechanism;

[0032] The supporting mechanism includes a telescopic cylinder 27 fixedly mounted on the upper surface of the rear end of the push-pull L plate 11, a connecting piece 28 fixedly mounted on the upper surface of the telescopic cylinder 27, a guide cylinder 25 fixedly mounted on the upper surface of the rear end of the push-pull L plate 11, a guide rod 26 movably mounted on the inner surface of the guide cylinder 25, and the guide rod 26 fixedly mounted on the lower surface of the connecting piece 28, a triangular fixing groove 29 is provided on the upper surface of the connecting piece 28, a V-supporting piece 30 fixedly mounted on the inner surface of the triangular fixing groove 29, and the arc-shaped exhaust pipe 34 is supported by the V-supporting piece 30, and the height of the connecting piece 28 is adjusted by the telescopic cylinder 27 in conjunction with the guide cylinder 25 and the guide rod 26, so that the arc-shaped exhaust pipe 34 of different diameters can be aligned with the relatively straight exhaust pipe 35, so that brazing can be performed, and the V-supporting piece 30 can lift the arc-shaped exhaust pipe 34 of different diameters;

[0033] A left-hand threaded member 22 is fixedly installed on the rear surface of the left-hand fixed pipe member 21, and a right-hand threaded member 24 is fixedly installed on the rear surface of the right-hand fixed pipe member 23, and the right-hand fixed pipe member 23 is movably installed on the lower surface of the left-hand fixed pipe member 21. A bidirectional threaded rod 20 is movably installed on the inner surfaces of the left-hand threaded member 22 and the right-hand threaded member 24. The left-hand fixed pipe member 21 and the right-hand fixed pipe member 23 are controlled by the bidirectional threaded rod 20 to fix and clamp the arc-shaped exhaust pipe 34. The bidirectional threaded rod 20 rotates inward or outward to drive the left-hand threaded member 22 and the right-hand threaded member 24 to move closer or farther away, thereby driving the left-hand fixed pipe member 21 and the right-hand fixed pipe member 23 to clamp and fix the arc-shaped exhaust pipe 34 through four contact points, or to loosen the arc-shaped exhaust pipe 34.

[0034] A connecting plate 36 is fixedly installed on the rear surface of the large gear 15, and two reinforcing ribs 18 are fixedly installed on the upper surface of the connecting plate 36. The reinforcing ribs 18 are fixedly installed on the rear surface of the large gear 15. The connection between the connecting plate 36 and the large gear 15 is strengthened by the reinforcing ribs 18. A fixed motor 19 is fixedly installed on the upper surface of the connecting plate 36, and a bidirectional threaded rod 20 is fixedly installed on the end of the fixed motor 19. The rotation of the large gear 15 drives the left-hand fixed pipe 21 and the right-hand fixed pipe 23 to rotate, and the fixed motor 19 automatically rotates. The arc-shaped exhaust pipe 34 is fixed, and the large gear 15 is aligned with the center of the straight exhaust pipe 35, so that the large gear 15 can drive the arc-shaped exhaust pipe 34 to rotate with the straight exhaust pipe 35 as the center. Due to the support of the V-supporting member 30, when the arc-shaped exhaust pipe 34 rotates from the bottom to the top, the arc-shaped exhaust pipe 34 will not move downward, and because the left-direction fixed pipe member 21 and the right-direction fixed pipe member 23 clamp the arc-shaped exhaust pipe 34 through four contact points, the arc-shaped exhaust pipe 34 cannot be offset and still rotates with the straight exhaust pipe 35 as the center.

[0035] The fixed rotation mechanism includes a first fixed frame 2 fixedly installed on the upper surface of the rear end of the base frame 1, a first fixed platform 3 fixedly installed on the rear surface of the first fixed frame 2, a first motor 4 fixedly installed on the inner surface of the first fixed platform 3, and the first motor 4 movably penetrates the rear surface of the first fixed frame 2, a fixing plate 5 fixedly installed on the end of the first motor 4, two half-ring silicone parts 6 fixedly installed on the front surface of the fixing plate 5, a straight exhaust pipe 35 installed outside the two half-ring silicone parts 6 is fixed through four contact points with the two half-ring silicone parts 6, and the fixing plate 5 is driven to rotate by the first motor 4, thereby driving the straight exhaust pipe 35 sleeved on the two half-ring silicone parts 6 to rotate.

[0036] The brazing mechanism includes a second fixing frame 7 fixedly mounted on the upper surface of the base frame 1, an inverted fixing part 33 is installed on the inner side of the second fixing frame 7, a brazing gun 8 is fixedly mounted on the inner surface of the inverted fixing part 33, and the brazing gun 8 is fixedly mounted at the joint between the arc exhaust pipe 34 and the straight exhaust pipe 35. Fixing the brazing gun 8 by the inverted fixing part 33 not only saves space, but also makes it convenient for workers to install the straight exhaust pipe 35 through the semi-ring silicone part 6. The brazing gun 8 has built-in brazing material and since brazing is a prior art, it will not be elaborated on here.

[0037] The push-pull mechanism includes a slide rail 31 fixedly mounted on the upper surface of the base frame 1, a slide table 32 is movably mounted on the inner surface of the slide rail 31, and the push-pull L plate 11 is fixedly mounted on the upper surface of the slide table 32. The push-pull L plate 11 is pulled forward by cooperating with the slide rail 31, so that the brazed workpiece can be removed from the device.

[0038] A handle 13 is fixedly mounted on the front surface of the push-pull L-plate 11 to facilitate pushing and pulling the push-pull L-plate 11 .

[0039] The driving mechanism includes a second fixed platform 9 fixedly installed on the inner surface of the base frame 1, a second motor 10 is fixedly installed on the inner surface of the second fixed platform 9, the second motor 10 movably passes through the front surface of the base frame 1, a pinion 14 is fixedly installed on the end of the second motor 10, a movable opening 12 is opened on the upper surface of the push-pull L plate 11, and the movable opening 12 is opened above the pinion 14, and a large gear 15 is movably installed on the inner surface of the movable opening 12, and the large gear 15 is meshed with the pinion 14, the pinion 14 is driven to rotate by the second motor 10, and the pinion 14 drives the meshing large gear 15 to rotate through the movable opening 12.

[0040] The fixed gear mechanism includes a pipe rack 17 fixedly mounted on the upper surface of the front end of the push-pull L-plate 11, and the pipe rack 17 is installed in front of the movable opening 12. A fixed shaft 16 is fixedly mounted on the upper surface of the pipe rack 17, and the large gear 15 is movably sleeved on the outer surface of the fixed shaft 16 to stabilize the large gear 15, and the axis of rotation of the large gear 15 is fixed by the fixed shaft 16.

[0041] During use, the straight exhaust pipe 35 is fixed in the device through the semi-ring silicone member 6, the arc exhaust pipe 34 is placed on the upper surface of the connecting plate 36 and the arc exhaust pipe 34 is placed on the upper surface of the V-supporting member 30, and the height of the V-supporting member 30 is adjusted by the telescopic cylinder 27, the guide cylinder 25 and the guide rod 26, so that the arc exhaust pipe 34 and the straight exhaust pipe 35 are connected at the seam, and the two-way threaded rod 20 is driven by the fixed motor 19 to rotate inward to drive the left-hand fixed pipe member 21 and the right-hand fixed pipe member 23 to clamp the arc exhaust pipe 34, and the first motor 4 and the second motor 10 start to rotate. The small gear 14 and the large gear 15 are meshed to drive the arc exhaust pipe 34 to rotate with the straight exhaust pipe 35 as the center. Due to the support of the V-supporting member 30, when the arc exhaust pipe 34 rotates from the bottom to the top, the arc exhaust pipe 34 will not move down. Since the left-hand fixed pipe 21 and the right-hand fixed pipe 23 clamp the arc exhaust pipe 34 through four contact points, the arc exhaust pipe 34 cannot be offset and still rotates with the straight exhaust pipe 35 as the center. During the rotation, the arc exhaust pipe 34 and the straight exhaust pipe 35 are brazed at the seam by the brazing gun 8. After the brazing is completed, the slide rail 31 and the slide table 32 move forward in coordination to remove the workpiece from the semi-ring silicone member 6. The fixed motor 19 drives the bidirectional threaded rod 20 to rotate outward to drive the left-hand fixed pipe 21 and the right-hand fixed pipe 23 to loosen the workpiece and remove the workpiece.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above implementation cases. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention to be protected. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A fixing device for welding automobile parts, comprising a base frame (1), characterized in that: A semi-ring silicone member (6) is installed on the upper surface of the base frame (1) via a fixing mechanism, a brazing gun (8) is installed on the upper surface of the base frame (1) via a brazing mechanism, a push-pull L-plate (11) is installed on the upper surface of the base frame (1) via a push-pull mechanism, a small gear (14) is installed on the upper surface of the base frame (1) via a driving mechanism, a large gear (15) is installed on the upper surface of the push-pull L-plate (11) via a fixed gear mechanism, a V-supporting member (30) is installed on the upper surface of the push-pull L-plate (11) via a supporting mechanism, and a left-hand fixed pipe member (21) and a right-hand fixed pipe member (23) are installed on the rear surface of the large gear (15) via a connecting mechanism; The supporting mechanism comprises a telescopic cylinder (27) fixedly mounted on the upper surface of the rear end of the push-pull L plate (11), a connecting piece (28) fixedly mounted on the upper surface of the telescopic cylinder (27), a guide cylinder (25) fixedly mounted on the upper surface of the rear end of the push-pull L plate (11), a guide rod (26) movably mounted on the inner surface of the guide cylinder (25), and the guide rod (26) fixedly mounted on the lower surface of the connecting piece (28), a triangular fixing groove (29) is formed on the upper surface of the connecting piece (28), a V-supporting piece (30) is fixedly mounted on the inner surface of the triangular fixing groove (29), and the arc-shaped exhaust pipe (34) is supported by the V-supporting piece (30); A left-hand threaded member (22) is fixedly mounted on the rear surface of the left-hand fixed pipe member (21), a right-hand threaded member (24) is fixedly mounted on the rear surface of the right-hand fixed pipe member (23), and the right-hand fixed pipe member (23) is movably mounted on the lower surface of the left-hand fixed pipe member (21), and a bidirectional threaded rod (20) is movably mounted on the inner surfaces of the left-hand threaded member (22) and the right-hand threaded member (24), and the left-hand fixed pipe member (21) and the right-hand fixed pipe member (23) are controlled by the bidirectional threaded rod (20) to fix and clamp the arc-shaped exhaust pipe (34).

2. A fixing device for welding automobile parts according to claim 1, characterized in that: A connecting plate (36) is fixedly mounted on the rear surface of the large gear (15), two reinforcing ribs (18) are fixedly mounted on the upper surface of the connecting plate (36), and the reinforcing ribs (18) are fixedly mounted on the rear surface of the large gear (15), a fixed motor (19) is fixedly mounted on the upper surface of the connecting plate (36), and the bidirectional threaded rod (20) is fixedly mounted on the end of the fixed motor (19).

3. The fixing device for welding automobile parts according to claim 1, characterized in that: The fixed rotation mechanism comprises a first fixing frame (2) fixedly mounted on the upper surface of the rear end of the base frame (1); a first fixing platform (3) fixedly mounted on the rear surface of the first fixing frame (2); a first motor (4) fixedly mounted on the inner surface of the first fixing platform (3); and the first motor (4) movably passes through the rear surface of the first fixing frame (2); a fixing plate (5) fixedly mounted on the end of the first motor (4); and two half-ring silicone parts (6) fixedly mounted on the front surface of the fixing plate (5).

4. The fixing device for welding automobile parts according to claim 1, characterized in that: The brazing mechanism comprises a second fixing frame (7) fixedly mounted on the upper surface of the base frame (1), an inverted fixing piece (33) being mounted on the inner side of the second fixing frame (7), a brazing gun (8) being fixedly mounted on the inner surface of the inverted fixing piece (33), and the brazing gun (8) being fixedly mounted at the joint between the arc-shaped exhaust pipe (34) and the straight exhaust pipe (35).

5. The fixing device for welding automobile parts according to claim 1, characterized in that: The push-pull mechanism comprises a slide rail (31) fixedly mounted on the upper surface of the base frame (1), a slide table (32) is movably mounted on the inner surface of the slide rail (31), and the push-pull L-plate (11) is fixedly mounted on the upper surface of the slide table (32).

6. A fixing device for welding automobile parts according to claim 5, characterized in that: A handle (13) is fixedly mounted on the front surface of the push-pull L-plate (11).

7. The fixing device for welding automobile parts according to claim 1, characterized in that: The driving mechanism comprises a second fixed platform (9) fixedly mounted on the inner surface of the base frame (1), a second motor (10) fixedly mounted on the inner surface of the second fixed platform (9), the second motor (10) movably passes through the front surface of the base frame (1), a pinion (14) is fixedly mounted on the end of the second motor (10), a movable opening (12) is provided on the upper surface of the push-pull L-plate (11), and the movable opening (12) is provided above the pinion (14), and the large gear (15) is movably mounted on the inner surface of the movable opening (12), and the large gear (15) is meshed with the small gear (14).

8. A fixing device for welding automobile parts according to claim 7, characterized in that: The fixed gear mechanism comprises a pipe rack (17) fixedly mounted on the upper surface of the front end of the push-pull L-plate (11), and the pipe rack (17) is mounted in front of the movable opening (12), a fixed shaft (16) is fixedly mounted on the upper surface of the pipe rack (17), and the large gear (15) is movably sleeved on the outer surface of the fixed shaft (16).

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