A welding device for anti-collision bracket of electric tricycle

Abstract

The present invention discloses a welding device for an anti-collision bracket of an electric tricycle, and relates to the field of welding devices for frames of electric tricycles, comprising a base plate, wherein the base plate is used for placing a frame, a welding mechanism 1 is arranged at a position on the base plate at the front end of the frame, the welding mechanism 1 comprises a crossbar placing arm for placing a crossbar and a squeezing arm for assisting in the insertion of a short rod, symmetrically arranged welding mechanisms 2 are arranged at positions on both sides of the anti-collision bracket of the frame, the welding mechanism 2 is used for clamping the short rod and a protective ball head and placing the short rod and the protective ball head at designated positions, the bottom of the welding mechanism 2 is fixed on a slide rail, the welding mechanism 1 and the slide rail are both mounted on the base plate, and the invention can quickly complete the welding of the anti-collision bracket on the frame by cooperating with the arranged welding mechanism 1 and the welding mechanism 2, thereby ensuring the accuracy and reliability of the welding.

Description

Technical Field

[0001] The invention relates to the field of electric tricycle frame welding devices, in particular to an electric tricycle anti-collision bracket welding device. Background Art

[0002] An electric tricycle is a means of transportation that uses electricity as a driving force. Electric tricycles are widely used in cities and rural areas due to their strong applicability, flexibility, simple maintenance, easy repair, low price, and the ability to flexibly travel on narrow roads, rural roads, and field paths in urban communities and rural areas. When producing electric tricycles, in order to accommodate the use scenarios in which the vehicle often travels through narrow paths and for safety considerations, anti-collision protection brackets are installed on both sides of the front windshield of the vehicle. The top of the protection bracket generally uses a ball head to cover the top of the rod of the anti-collision frame. This is to prevent scratches on people or objects that are scratched and the deformation of the rod end to form sharp metal sheets that injure people when an accident occurs. In the existing anti-collision frame welding process, the welding of these rods and protective ball heads is done by hand-held welding, and the welding accuracy and quality are not easy to guarantee, which is a great hidden danger for the use of the vehicle. Summary of the invention

[0003] The purpose of the present invention is to provide a welding device for an anti-collision bracket of an electric tricycle to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for an anti-collision bracket of an electric tricycle, comprising a base plate, the base plate is used to place a frame, a welding mechanism 1 is provided on the base plate at the front end of the frame, the welding mechanism 1 includes a cross bar placement arm for placing a cross bar and an extrusion arm for assisting the insertion of a short rod, and symmetrically arranged welding mechanisms 2 are provided at positions on both sides of the anti-collision bracket of the frame, the welding mechanism 2 is used to clamp the short rod and the protective ball head and place the short rod and the protective ball head to a specified position, the bottom of the welding mechanism 2 is fixed on a slide rail, and the welding mechanism 1 and the slide rail are both installed on the base plate.

[0005] Preferably, the welding mechanism also includes a cylinder, an inclined guide rail and a pushing seat, the cylinder is installed in a cylinder protection seat, the cylinder is obliquely arranged and forms an angle of 45° with the horizontal plane, the output shaft of the cylinder is connected to the lower inclined surface of the pushing seat, the inclined guide rail is symmetrically arranged at both ends of the pushing seat and is slidably connected to the pushing seat, the pushing seat is also provided with an adjustment slide rail, one side of the adjustment slide rail is provided with a waist-shaped hole on the upper surface of the pushing seat, the cross bar placement arm is slidably installed on the adjustment slide rail and can be fixed at any position on the adjustment slide rail by bolts installed in the waist-shaped hole, and the extrusion arm is fixed at both ends of the pushing seat.

[0006] Preferably, the cross bar placement arm includes a slide column and a clamping claw, the bottom of the slide column is provided with a slide groove matching the adjustment slide rail so that the slide column can slide freely on the adjustment slide rail, the clamping claw is fixed on the top of the slide column, and the clamping claw is also provided with a clip for clamping the cross bar.

[0007] Preferably, the extrusion arm includes a connecting arm and an extrusion sheet fixed to the top of the connecting arm, the bottom of the connecting arm is fixedly connected to the pushing seat, the mouth of the extrusion sheet is arc-shaped, and the inner side of the extrusion sheet is provided with a depression for avoiding air.

[0008] Preferably, the second welding mechanism includes a motor, a small pulley, a large pulley, a rotating flange, a mounting bracket and a support seat, the motor is installed in the support seat, the small pulley is installed on the output shaft of the motor and is connected to the large pulley through a belt, the large pulley and the rotating flange are both installed on the mounting shaft and installed in the mounting bracket through the mounting shaft, the mounting bracket is fixed to the upper end of the support seat, a dual-purpose clamping device is provided on the mounting shaft and outside the mounting flange, the dual-purpose clamping device includes two upper and lower groups and is used to clamp the short rod and protect the ball head, and the upper and lower groups of the two-purpose clamping devices are driven to rotate by the friction of the rotating flange.

[0009] Preferably, the dual-purpose clamping device comprises a pressing block and a pressing seat, the pressing seat is provided with four blocks, the pressing block is fixed to the inner surface of the pressing seat, the top surface of the pressing seat is provided with a hanging platform, the hanging platform is installed on the mounting plate through a guide hole, the inner side surface of the hanging platform is provided with an electric push rod, the electric push rod is fixed on the top surface of the mounting plate, a protective cover is provided below the mounting plate, and the protective cover is connected to the mounting shaft through a connecting shaft;

[0010] The protective cover is provided with a through hole, and the pressing block can pass through the through hole and be inserted into the protective cover;

[0011] The top of the pressing block is provided with an arc clamping surface, and the bottom surface of the pressing block is a short rod clamping surface.

[0012] Preferably, a slide seat is provided on the slide rail, and the slide seat can slide freely on the slide rail.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The invention can quickly position and move the crossbar to a designated position through a welding mechanism, thereby helping the crossbar to be quickly welded to the frame;

[0015] 2. The extrusion arm is arranged to cooperate with the rotating welding mechanism 2 to spin the end of the short rod to be inserted into the frame, so as to help the short rod to be quickly inserted into the positioning groove on the frame;

[0016] 3. Since the dual-purpose clamping device rotates to move the short rod and the protective ball head forward, the process of inserting the short rod into the frame and the protective ball head into the short rod can be completed quickly, thereby improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the frame structure of the present invention;

[0019] Figure 3 It is a partial cross-sectional structural schematic diagram of a welding mechanism of the present invention;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure at inner A;

[0021] Figure 5 for Figure 3 A magnified schematic diagram of the structure at inner B;

[0022] Figure 6 This is a structural schematic diagram of the second welding mechanism of the present invention;

[0023] Figure 7 It is a schematic diagram of the structural decomposition of the dual-purpose clamping device of the present invention.

[0024] In the figure: 1-bottom plate; 2-frame; 3-cross bar; 4-short bar;

[0025] 5-welding mechanism 1; 51-crossbar placement arm; 511-slide column; 512-clamping claw; 513-clamping piece;

[0026] 52-extrusion arm; 521-connection arm; 522-extrusion sheet;

[0027] 53-oil cylinder; 54-inclined guide rail; 55-pushing seat; 56-oil cylinder protection seat; 57-adjusting slide rail; 58-waist-shaped hole;

[0028] 6-welding mechanism 2; 61-motor; 62-small pulley; 63-large pulley; 64-rotating flange; 65-mounting bracket; 66-support seat; 67-mounting shaft;

[0029] 68-dual-purpose clamping device; 681-pressing block; 6811-arc clamping surface; 6812-short rod clamping surface; 682-pressing seat; 683-hanging table; 684-guide hole; 685-mounting plate; 686-electric push rod; 687-protective cover; 6871-through hole; 688-connecting shaft;

[0030] 7-Protect the ball head; 3

[0031] 8-slide rail; 81-slide seat. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0033] See also Figures 1 to 7 The present invention provides a technical solution: a welding device for an anti-collision bracket of an electric tricycle, comprising a base plate 1, wherein the base plate 1 is used to place a frame 2, a welding mechanism 5 is provided on the base plate 1 at the front end of the frame 2, the welding mechanism 5 comprises a crossbar placement arm 51 for placing a crossbar 3 and a squeezing arm 52 for assisting the insertion of a short rod 4, symmetrically arranged welding mechanisms 6 are provided at positions on both sides of the frame anti-collision bracket, the welding mechanism 6 is used to clamp the short rod 4 and the protective ball head 7 and place the short rod 4 and the protective ball head 7 to a specified position, the bottom of the welding mechanism 6 is fixed on a slide rail 8, the welding mechanism 5 and the slide rail 8 are both installed on the base plate 1, and with the cooperation of the welding mechanism 5 and the welding mechanism 6, the anti-collision bracket to be welded can be quickly placed at the specified position, thereby improving the welding efficiency and quality.

[0034] In this embodiment, the welding mechanism 1 5 also includes a cylinder 53, an inclined guide rail 54 and a push seat 55. The cylinder 53 is installed in a cylinder protection seat 56. The cylinder 53 is obliquely arranged and is at an angle of 45° to the horizontal plane. The output shaft of the cylinder 53 is connected to the lower inclined surface of the push seat 55. The inclined guide rail 54 is symmetrically arranged at both ends of the push seat 55 and is slidably connected to the push seat 55. The push seat 55 is also provided with an adjustment slide rail 57. One side of the adjustment slide rail 57 is located on the upper surface of the push seat 55 and is provided with a waist-shaped hole 58. The cross bar placement arm 51 is slidably installed on the adjustment slide rail 57 and can be fixed at any position on the adjustment slide rail 57 by bolts installed in the waist-shaped hole 58. The extrusion arm 52 is fixed at both ends of the pushing seat 55. The pushing seat 55 is pushed up and down along the inclined guide rail 54 by the cylinder 53, which can realize the oblique upward and downward movement of the cross bar placement arm 51 and the extrusion arm 52. In the present invention, the initial state of the cross bar placement arm 51 and the extrusion arm 52 is a state in which they are pushed upward by the cylinder 53 and are higher than the position where the cross bar 3 and the short bar 4 on the frame 2 are to be welded.

[0035] In this embodiment, the cross bar placement arm 51 includes a slide groove column 511 and a clamping claw 512. The bottom of the slide groove column 511 is provided with a slide groove matching the adjustment slide rail 57 so that the slide groove column 511 can slide freely on the adjustment slide rail 57. The clamping claw 512 is fixed on the top of the slide groove column 511. The clamping claw 512 is also provided with a clip 513 for clamping the cross bar 3. The cross bar 3 is clamped by the clip 513, and the position of the cross bar placement arm 51 on the adjustment slide rail 57 is adjusted by the sliding slide groove column 511. After the adjustment is completed, the cross bar clamping arm 51 is fixed on both sides of the slide groove column 511 by bolts located on both sides of the cross bar clamping arm 51, so as to achieve the purpose of clamping any position on the cross bars 3 of different lengths, so as to leave enough space for welding.

[0036] In this embodiment, the squeezing arm 52 includes a connecting arm 521 and a squeezing sheet 522 fixed on the top of the connecting arm 521, and the bottom of the connecting arm 521 is fixedly connected to the pushing seat 55, the mouth of the squeezing sheet 522 is arc-shaped, and the inner side of the squeezing sheet 522 is provided with a depression for avoiding air. In the initial position, the squeezing sheet 522 is higher than the short rod positioning groove on the frame 2. When welding is required and the squeezing sheet 522 is moved into place, the frame 2 is located in the depression for avoiding air inside the squeezing sheet 522, and the mouth diameter of the squeezing sheet 522 is slightly smaller than the diameter of the short rod 4. During the process of the short rod 4 rotating and plugging into the frame 2, the squeezing sheet 522 can squeeze the short rod 4 into the position inside the frame 2. On the one hand, it can reduce the influence of burrs on the plugging during the cutting process of the short rod 4, and on the other hand, it also reduces the diameter at this position, which is more convenient for the plugging of the short rod 4.

[0037] In this embodiment, the welding mechanism 2 6 includes a motor 61, a small pulley 62, a large pulley 63, a rotating flange 64, a mounting bracket 65 and a support seat 66. The motor 61 is installed in the support seat 66. The small pulley 62 is installed on the output shaft of the motor 61 and is connected to the large pulley 63 through a belt. The large pulley 63 and the rotating flange 64 are both installed on the mounting shaft 67 and installed in the mounting bracket 65 through the mounting shaft 67. The mounting bracket 65 is fixed to the upper end of the support seat 66. A dual-purpose clamping device 68 is provided on the mounting shaft 67 and outside the mounting flange 64. The dual-purpose clamping device 68 includes two upper and lower groups and is used to clamp the short rod 4 and the protective ball head 7. The upper and lower groups of the dual-purpose clamping device 68 are driven to rotate by the friction of the rotating flange 64. The dual-purpose clamping device 68 clamping the short rod 4 or the protective ball head 7 is driven to rotate by the motor 61, and the rotating short rod 4 or the protective ball head 7 can be more conveniently inserted into the frame 2 and the short rod 4.

[0038] In this embodiment, the dual-purpose clamping device 68 includes a clamping block 681 and a clamping seat 682. The clamping seat 682 is provided with four blocks. The clamping block 681 is fixed to the inner surface of the clamping seat 32. The top surface of the clamping seat 682 is provided with a hanging platform 683. The hanging platform 683 is installed on the mounting plate 685 through a guide hole 684. The inner side surface of the hanging platform 683 is provided with an electric push rod 686. The electric push rod 686 is fixed on the top surface of the mounting plate 685. A protective cover 687 is provided below the mounting plate 685. The protective cover 687 is connected to the mounting shaft 67 through a connecting shaft 688.

[0039] The protective cover 687 is provided with a through hole 6871, and the clamping block 681 can pass through the through hole 6871 and be inserted into the protective cover 687; when the clamping block 681 passes through the through hole 6871, it can tightly clamp the short rod 4, which has a smaller diameter than the protective ball head 7, through the short rod clamping surface 6812; at the same time, a soft cushion is provided at the mouth of the protective cover 687, and the protective ball head 7 inserted into the protective cover 687 can be clamped through the squeezing effect of the soft cushion, and the inserted protective ball head 7 moves into the protective cover 687 until it hits the arc clamping surface 6811 and stops. At this time, the protective ball head 7 is in a state that is convenient for being sleeved on the short rod 4 and convenient for welding after the sleeve connection.

[0040] The top of the pressing block 681 is provided with an arc clamping surface 6811 , and the bottom surface of the pressing block 681 is a short rod clamping surface 6812 .

[0041] In this embodiment, a slide seat 81 is provided on the slide rail 8. The slide seat 81 can slide freely on the slide rail 8, and the slide rail 8 drives the short rod 4 or the protective ball head 7 clamped by the dual-purpose clamping device 68 to move forward.

[0042] Working principle: When in use, first place the cross bar 3 into the cross bar placement arm 51, and then the oil cylinder 53 drives the cross bar placement arm 51 to move obliquely downward until the cross bar 3 is placed at the corresponding position on the frame 2, first weld the cross bar 3 to the frame by manual welding or mechanical arm welding (not shown in the attached drawings), and then place the short rod 4 into the dual-purpose clamping device 68 of the lower layer, drive the clamping block 681 to clamp the short rod 4 by the electric push rod 686, and then drive the short rod 4 to start rotating by the motor 61 and move toward the frame 2 driven by the slide rail 8. During the movement, first push the extrusion sheet 522 to the short rod 4 through the oil cylinder 53. The rod 4 will reach the position and ensure that the inner wall of the extrusion sheet 522 is close to the frame 2. When the short rod 4 passes through, the extrusion sheet 522 will first spin the part of the short rod 4 inserted into the frame 2. This can reduce the impact of burrs on the insertion during the cutting process of the short rod 4 on the insertion, and on the other hand, it also reduces the diameter at this position, which is more convenient for the insertion of the short rod 4. After the insertion is completed, the short rod 4 is welded to the frame 2, and then the protective ball head 7 is respectively placed in the upper and lower dual-purpose clamping devices 68, and the rotating protective ball head 7 is respectively sleeved on the outer ends of the cross bar 3 and the short rod 4. After the sleeve is completed, the protective ball head 7 is welded and fixed to complete the welding of the anti-collision bracket.

[0043] Based on the above, the invention can quickly position and move the cross bar to the specified position through the set welding mechanism 1, so as to help the cross bar to be quickly welded to the frame; the set extrusion arm can cooperate with the rotating welding mechanism 2 to spin the end of the short rod to be inserted into the frame, so as to help the short rod to be quickly inserted into the positioning groove on the frame; because the dual-purpose clamping device rotates to move the short rod and the protective ball head forward, the process of inserting the short rod into the frame and the protective ball head into the short rod can be completed quickly, thereby improving the welding efficiency.

[0044] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A welding device for an anti-collision bracket of an electric tricycle, characterized in that: The invention comprises a bottom plate (1), wherein the bottom plate (1) is used to place a vehicle frame (2), a welding mechanism (5) is provided on the bottom plate (1) at a position located at the front end of the vehicle frame (2), the welding mechanism (5) comprises a crossbar placement arm (51) for placing a crossbar (3) and a squeezing arm (52) for assisting in plugging in a short bar (4), and symmetrically arranged welding mechanisms (6) are provided at positions on both sides of a vehicle frame anti-collision bracket, the welding mechanism (6) is used to clamp the short bar (4) and the protective ball head (7) and place the short bar (4) and the protective ball head (7) at a specified position, the bottom of the welding mechanism (6) is fixed on a slide rail (8), and the welding mechanism (5) and the slide rail (8) are both installed on the bottom plate (1); The squeezing arm (52) comprises a connecting arm (521) and a squeezing sheet (522) fixed to the top of the connecting arm (521); the bottom of the connecting arm (521) is fixedly connected to the pushing seat (55); the mouth of the squeezing sheet (522) is arc-shaped; and a recess for avoiding air is provided on the inner side of the squeezing sheet (522).

2. The electric tricycle anti-collision bracket welding device according to claim 1 is characterized in that: The welding mechanism (5) further comprises an oil cylinder (53), an inclined guide rail (54) and a pushing seat (55), wherein the oil cylinder (53) is installed in an oil cylinder protection seat (56), the oil cylinder (53) is arranged obliquely and is at an angle of 45° to the horizontal plane, the output shaft of the oil cylinder (53) is connected to the lower inclined surface of the pushing seat (55), the inclined guide rail (54) is symmetrically arranged at both ends of the pushing seat (55) and is slidably connected to the pushing seat (55), the pushing seat (55) is also provided with an adjustment slide rail (57), one side of the adjustment slide rail (57) is provided with a waist-shaped hole (58) on the upper surface of the pushing seat (55), the cross bar placement arm (51) is slidably installed on the adjustment slide rail (57) and can be fixed to any position on the adjustment slide rail (57) by bolts installed in the waist-shaped hole (58), and the squeezing arm (52) is fixed to both ends of the pushing seat (55).

3. The electric tricycle anti-collision bracket welding device according to claim 2 is characterized in that: The crossbar placement arm (51) comprises a slide column (511) and a clamping claw (512); a slide column matching the adjustment rail (57) is provided at the bottom of the slide column (511) so that the slide column (511) can slide freely on the adjustment rail (57); the clamping claw (512) is fixed on the top of the slide column (511); and a clip (513) for clamping the crossbar (3) is also provided on the clamping claw (512).

4. The electric tricycle anti-collision bracket welding device according to claim 1 is characterized in that: The second welding mechanism (6) comprises a motor (61), a small pulley (62), a large pulley (63), a rotating flange (64), a mounting bracket (65) and a support seat (66); the motor (61) is mounted in the support seat (66); the small pulley (62) is mounted on the output shaft of the motor (61) and is connected to the large pulley (63) through a belt; the large pulley (63) and the rotating flange (64) are both mounted on a mounting shaft (67) and are mounted in the mounting bracket (65) through the mounting shaft (67); the mounting bracket (65) is fixed to the upper end of the support seat (66); a dual-purpose clamping device (68) is provided on the mounting shaft (67) and is located outside the mounting flange (64); the dual-purpose clamping device (68) comprises two upper and lower groups and is used to clamp the short rod (4) and protect the ball head (7); the upper and lower groups of the dual-purpose clamping devices (68) are driven to rotate by the friction of the rotating flange (64).

5. The electric tricycle anti-collision bracket welding device according to claim 4 is characterized in that: The dual-purpose clamping device (68) comprises a clamping block (681) and a clamping seat (682), wherein the clamping seat (682) is provided with four blocks, wherein the clamping block (681) is fixed on the inner surface of the clamping seat (682), wherein the top surface of the clamping seat (682) is provided with a hanging platform (683), wherein the hanging platform (683) is installed on a mounting plate (685) through a guide hole (684), wherein an electric push rod (686) is provided on the inner side surface of the hanging platform (683), wherein the electric push rod (686) is fixed on the top surface of the mounting plate (685), wherein a protective cover (687) is provided below the mounting plate (685), wherein the protective cover (687) is connected to the mounting shaft (67) through a connecting shaft (688); The protective cover (687) is provided with a through hole (6871), and the pressing block (681) can pass through the through hole (6871) and be inserted into the protective cover (687); The top of the pressing block (681) is provided with an arc clamping surface (6811), and the bottom surface of the pressing block (681) is a short rod clamping surface (6812).

6. The electric tricycle anti-collision bracket welding device according to claim 1, characterized in that: A slide seat (81) is provided on the slide rail (8), and the slide seat (81) can slide freely on the slide rail (8).

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