A positioning fixture for welding electric vehicle front fork lock frames

Abstract

This utility model discloses a positioning fixture for welding front fork lock frames of electric vehicles. It includes a fixed bracket, and a lock frame fixing mechanism and an upper fork fixing mechanism mounted on the fixed bracket. The lock frame fixing mechanism includes a lock frame fixing box and a lock box fixing block. The lock frame fixing box is slidably connected to the fixed bracket via the lock box fixing block. The upper fork fixing mechanism includes a riser fixing seat, a riser quick-pressing mechanism, a cylinder, and an upper fork fixing block. The riser fixing seat and the cylinder are connected to the fixed bracket. The riser fixing seat has a groove that mates with the riser. The lower end of the groove has a positioning step that mates with a sleeve. The riser quick-pressing mechanism is connected to the side of the riser fixing seat. The quick-pressing mechanism, in conjunction with the groove, enables radial fixing of the riser. By positioning and clamping the lock frame and upper fork respectively using the lock frame fixing mechanism and the upper fork fixing mechanism mounted on the fixed bracket, and then welding these two parts together in one operation, high precision and good consistency are achieved, saving labor costs.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle frame technology, and in particular to a positioning fixture for welding the front fork lock frame of an electric vehicle. Background Technology

[0002] Electric vehicles are common two-wheeled or three-wheeled modes of transportation. The frame is one of the main components of an electric vehicle. As the core structural framework of the entire vehicle, the frame supports the vehicle body and connects various parts. Its quality directly affects the user's safety. The materials, manufacturing process, and design collectively determine the vehicle's safety, durability, and functional expandability. The main body of an electric vehicle frame is usually constructed from metal tubing or composite materials, formed through welding or die-casting processes. It includes major components such as the main frame, front fork, and rear fork, forming a complete mechanical load-bearing system. The front fork assembly is the main component connecting to the front wheel. A lock bracket is usually installed on the upper fork tube of the front fork for mounting a lock.

[0003] In existing technologies, metal lock frames are typically fixed to the fork upper fork tube by welding. The lock frame is usually positioned manually before welding, and then marked with lines for positioning. However, the precision of this manual marking and welding process cannot be guaranteed, and the welding operation is difficult and inefficient overall. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a positioning fixture for welding the front fork lock frame of an electric vehicle.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A positioning fixture for welding front fork lock frames in electric vehicles is characterized by comprising a fixed bracket, and a lock frame fixing mechanism and an upper fork fixing mechanism disposed on the fixed bracket. The lock frame fixing mechanism includes a lock frame fixing box and a lock box fixing block. The lock frame fixing box is slidably connected to the fixed bracket via the lock box fixing block, and the lock frame fixing box can be detachably connected to the lock frame. The upper fork fixing mechanism includes a riser fixing seat, a riser quick-pressing mechanism, a cylinder, and an upper fork fixing block. The riser fixing seat and the cylinder are connected to the fixed bracket. The riser fixing seat has a groove that mates with the riser. The lower end of the groove has a positioning step that mates with a sleeve. The riser quick-pressing mechanism is connected to the side of the riser fixing seat. The riser quick-pressing mechanism, in conjunction with the groove, can achieve radial fixing of the riser. The upper fork fixing block is connected to the front end of the cylinder push rod. The upper fork fixing block, in conjunction with the positioning step, can achieve axial fixing of the riser.

[0007] Furthermore, the riser quick-pressing mechanism includes a first quick-pressing handle, a first quick-pressing base, and a riser quick-pressing head. The first quick-pressing base is fixedly connected to the side of the riser fixing seat. The first quick-pressing handle and the riser quick-pressing head are hinged to the first quick-pressing base. The first quick-pressing handle can push and lock the riser quick-pressing head.

[0008] Furthermore, the fixed bracket includes a fixed base plate, a first fixed plate, a second fixed plate, and a third fixed plate that are fixedly connected from bottom to top. The lock box fixing block is slidably connected to the third fixed plate, and the riser fixing seat and the cylinder are connected to the second fixed plate.

[0009] Furthermore, a guide rail is connected to the third fixing plate, and the lock box fixing block is slidably connected to the guide rail via a top slider.

[0010] Furthermore, a locking frame quick-pressing mechanism is connected to the end of the guide rail. The locking box fixing block is connected to the locking frame quick-pressing mechanism through a pressure rod. When the locking frame quick-pressing mechanism is pushed, the pressure rod can drive the locking box fixing block to move back and forth along the guide rail.

[0011] Furthermore, the locking frame quick-press mechanism includes a second quick-press base, a second quick-press handle, and a quick-press connector. The second quick-press base is fixedly connected to the guide rail, and the pressure rod, quick-press connector, second quick-press handle, and second quick-press base are sequentially hinged to each other.

[0012] Furthermore, the pressure rod is movably mounted on the second quick-press base.

[0013] Furthermore, the lock frame fixing mechanism also includes a lock frame through pin, and the lock frame fixing box is provided with a through hole, in which the lock frame through pin passes.

[0014] Furthermore, the upper fork fixing mechanism also includes a handle fixing block, which is connected to the second fixing plate.

[0015] Furthermore, the second fixing plate is provided with several adjustment holes, and the riser fixing seat and the handle fixing block are adjustablely connected to the second fixing plate through the adjustment holes.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This fixture uses a locking frame fixing mechanism and an upper fork fixing mechanism set on a fixed bracket to position and clamp the locking frame and upper fork respectively, and then welds the two parts together in one go. It has high precision, good consistency and saves labor costs.

[0018] 2. Both the locking frame fixing mechanism and the upper fork fixing mechanism achieve rapid positioning and fixing of the workpiece to be welded through a quick clamping device, which is simple to operate and reliable in connection.

[0019] 3. The locking pin in the locking mechanism engages with the through hole on the locking frame fixing box, which can limit the position of the locking frame on the locking frame fixing box and prevent it from moving during positioning and clamping.

[0020] Other features and advantages of this invention will be set forth in the following description or may be learned by practicing this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the locking frame quick-pressing mechanism.

[0023] Figure 3 This is a schematic diagram of the riser quick-pressing mechanism.

[0024] Figure 4 This is a schematic diagram of the riser fixing seat structure;

[0025] Figure 5 This is a schematic diagram of the structure of the lock frame fixing box.

[0026] In the diagram: 1-Locking frame fixing box, 2-Locking box fixing block, 3-Locking frame quick-pressing mechanism, 4-Upper pipe fixing seat, 5-Upper pipe quick-pressing mechanism, 6-Cylinder, 7-Upper fork fixing block, 8-Upper pipe, 9-Sleeve, 10-Fixed base plate, 11-First fixing plate, 12-Second fixing plate, 13-Third fixing plate, 14-Guide rail, 15-Slider, 16-Pressure rod, 17-Locking frame through pin, 18-Through hole, 19-Handle fixing block, 20-Adjusting hole, 21-Locking frame, 31-Second quick-pressing base, 32-Second quick-pressing handle, 33-Quick-pressing connector, 41-Groove, 42-Positioning step, 51-First quick-pressing handle, 52-First quick-pressing base, 53-Upper pipe quick-pressing head. Detailed Implementation

[0027] To enhance understanding of this utility model, we will now describe it in further detail with reference to the accompanying drawings. This embodiment is only used to explain this utility model and does not constitute a limitation on the scope of protection of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," and "setting," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] like Figure 1 As shown, a positioning fixture for welding front fork lock frames of electric vehicles includes a fixed bracket, a lock frame fixing mechanism, and an upper fork fixing mechanism disposed on the fixed bracket. The fixed bracket includes a fixed base plate 10, a first fixing plate 11, a second fixing plate 12, and a third fixing plate 13, which are sequentially fixedly connected from bottom to top.

[0031] The lock frame fixing mechanism includes a lock frame fixing box 1 and a lock box fixing block 2. The lock frame fixing box 1 is slidably connected to the third fixing plate 13 through the lock box fixing block 2. The lock frame fixing box 1 can be detachably connected to the lock frame 21.

[0032] Specifically, such as Figure 2 As shown, a guide rail 14 is connected to the bottom surface of the third fixing plate 13, and the lock box fixing block 2 is slidably connected to the guide rail 14 via the top slider 15. A lock frame quick-press mechanism 3 is connected to the end of the guide rail 14. The lock box fixing block 2 is connected to the lock frame quick-press mechanism 3 via a pressure rod 16. The lock frame quick-press mechanism 3 includes a second quick-press base 31, a second quick-press handle 32, and a quick-press connector 33. The second quick-press base 31 is fixedly connected to the guide rail 14. The pressure rod 16, quick-press connector 33, second quick-press handle 32, and second quick-press base 31 are sequentially hinged to each other, and the pressure rod 16 is movably inserted through the second quick-press base 31. When the second quick-press handle 32 is pushed, the pressure rod 16 can drive the lock box fixing block 2 to move back and forth along the guide rail 14.

[0033] like Figure 3 , 4As shown, the upper fork fixing mechanism includes a riser fixing seat 4, a riser quick-pressing mechanism 5, a cylinder 6, and an upper fork fixing block 7. The riser fixing seat 4 and the cylinder 6 are connected to the second fixing plate 12. The riser fixing seat 4 is provided with a groove 41 that mates with the riser 8. The lower end of the groove 41 is provided with a positioning step 42 that mates with the sleeve 9. The riser quick-pressing mechanism 5 is connected to the side of the riser fixing seat 4. The riser quick-pressing mechanism 5 and the groove 41 can achieve radial fixing of the riser 8. The upper fork fixing block 7 is connected to the front end of the push rod of the cylinder 6. The upper fork fixing block 7 and the positioning step 42 can achieve axial fixing of the riser 8.

[0034] Specifically, the riser quick-pressing mechanism 5 includes a first quick-pressing handle 51, a first quick-pressing base 52, and a riser quick-pressing head 53. The first quick-pressing base 52 is fixedly connected to the side of the riser fixing seat 4. The first quick-pressing handle 51 and the riser quick-pressing head 53 are hinged to the first quick-pressing base 52. The first quick-pressing handle 51 can push and lock the riser quick-pressing head 53.

[0035] Preferred, such as Figure 5 As shown, the lock frame fixing mechanism also includes a lock frame through pin 17. A through hole 18 is provided on the lock frame fixing box 1, and the lock frame through pin 17 passes through the through hole 18.

[0036] The upper fork fixing mechanism also includes a handle fixing block 19. The second fixing plate 12 is provided with several adjustment holes 20. The riser fixing seat 4 and the handle fixing block 19 are both adjustablely connected to the second fixing plate 12 through the adjustment holes 20.

[0037] The working process and principle of the above embodiments are as follows:

[0038] First, adjust the positions of the riser fixing seat 4 and the handle fixing block 19 on the second fixing plate 12 according to the length of the upper fork within the adjustment range of the adjustment hole 20. Then, place the riser 8 part of the upper fork in the groove 41 of the riser fixing seat 4, with the sleeve 9 at the lower end of the riser 8 abutting against the positioning step 42. The cylinder 6 drives the upper fork fixing block 7 to press the upper fork upward, achieving axial fixation. Push the first quick-press handle 51, and the riser quick-press head 53 presses the riser radially. Next, place the locking frame 21 on the locking frame fixing box 1, pass the locking frame through pin 17 through the locking frame 21 and insert it into the through hole 18 of the locking frame fixing box 1, push the second quick-press handle 32 forward, and the pressure rod 16 pushes the locking box fixing block 2 forward along the guide rail 14. The locking frame 21 is pressed and fixed in the predetermined position of the upper fork, completing the positioning and fixing of the upper fork and the locking frame, which facilitates subsequent welding operations.

[0039] The above specific embodiments are only for illustrating the technical concept and structural features of this utility model, and are intended to enable those skilled in the art to implement them. However, the above content does not limit the protection scope of this utility model. Any equivalent changes or modifications made in accordance with the spirit and essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A positioning fixture for welding the front fork lock frame of an electric vehicle, characterized in that: The system includes a fixed bracket, a locking frame fixing mechanism, and an upper fork fixing mechanism mounted on the fixed bracket. The locking frame fixing mechanism includes a locking frame fixing box (1) and a locking box fixing block (2). The locking frame fixing box (1) is slidably connected to the fixed bracket via the locking box fixing block (2). The locking frame fixing box (1) can be detachably connected to the locking frame (21). The upper fork fixing mechanism includes a riser fixing seat (4), a riser quick-pressing mechanism (5), a cylinder (6), and an upper fork fixing block (7). The riser fixing seat (4) and the cylinder (6) are connected... On the fixed bracket, the riser fixing seat (4) is provided with a groove (41) that cooperates with the riser (8). The lower end of the groove (41) is provided with a positioning step (42) that cooperates with the sleeve (9). The riser quick pressing mechanism (5) is connected to the side of the riser fixing seat (4). The riser quick pressing mechanism (5) cooperates with the groove (41) to achieve radial fixation of the riser (8). The upper fork fixing block (7) is connected to the front end of the cylinder (6) push rod. The upper fork fixing block (7) cooperates with the positioning step (42) to achieve axial fixation of the riser (8).

2. The positioning fixture for welding the lock bracket of the front fork of the electric vehicle according to claim 1, characterized in that: The riser quick-pressing mechanism (5) includes a first quick-pressing handle (51), a first quick-pressing base (52), and a riser quick-pressing head (53). The first quick-pressing base (52) is fixedly connected to the side of the riser fixing seat (4). The first quick-pressing handle (51) and the riser quick-pressing head (53) are hinged to the first quick-pressing base (52). The first quick-pressing handle (51) can push and lock the riser quick-pressing head (53).

3. The positioning fixture for welding of the lock bracket of the front fork of the electric vehicle as claimed in claim 1 wherein: The fixed bracket includes a fixed base plate (10), a first fixed plate (11), a second fixed plate (12), and a third fixed plate (13) that are fixedly connected from bottom to top. The lock box fixing block (2) is slidably connected to the third fixed plate (13). The riser fixing seat (4) and the cylinder (6) are connected to the second fixed plate (12).

4. The positioning fixture for welding the lock bracket of the front fork of the electric vehicle according to claim 3, characterized in that: The third fixing plate (13) is connected to a guide rail (14), and the lock box fixing block (2) is slidably connected to the guide rail (14) by a slider (15) at the top.

5. The positioning fixture for welding the lock bracket of the front fork of the electric vehicle according to claim 4, characterized in that: A lock frame quick-press mechanism (3) is connected to the end of the guide rail (14). The lock box fixing block (2) is connected to the lock frame quick-press mechanism (3) through a pressure rod (16). When the lock frame quick-press mechanism (3) is pushed, the pressure rod (16) can drive the lock box fixing block (2) to move back and forth along the guide rail (14).

6. The positioning fixture for welding of the lock bracket of the front fork of the electric vehicle as claimed in claim 5 wherein: The locking frame quick-press mechanism (3) includes a second quick-press base (31), a second quick-press handle (32), and a quick-press connector (33). The second quick-press base (31) is fixedly connected to the guide rail (14). The pressure rod (16), the quick-press connector (33), the second quick-press handle (32), and the second quick-press base (31) are sequentially hinged to each other.

7. The positioning fixture for welding of the lock bracket of the front fork of the electric vehicle as claimed in claim 6 wherein: The pressure rod (16) is movably mounted on the second quick-press base (31).

8. A positioning fixture for welding electric vehicle front fork lock frames according to claim 1, characterized in that: The locking frame fixing mechanism also includes a locking frame through pin (17), and a through hole (18) is provided on the locking frame fixing box (1), and the locking frame through pin (17) passes through the through hole (18).

9. A positioning fixture for welding electric vehicle front fork lock frames according to claim 3, characterized in that: The upper fork fixing mechanism also includes a handle fixing block (19), which is connected to the second fixing plate (12).

10. A positioning fixture for welding the front fork lock frame of an electric vehicle according to claim 9, characterized in that: The second fixing plate (12) is provided with a plurality of adjustment holes (20), and the riser fixing seat (4) and the handle fixing block (19) are adjustablely connected to the second fixing plate (12) through the adjustment holes (20).

Images