Rapid fixing clamp for new energy automobile chassis

Abstract

The utility model relates to a positioning clamp, in particular to a fast fixing clamp for a new energy automobile chassis, which comprises a clamping component, and the clamping component comprises a positioning block and a positioning pin. A through hole is axially formed in the positioning block, a limiting part is arranged on the end face of one end close to the through hole, and the limiting part can penetrate through a positioning hole in a new energy automobile chassis and limit the new energy automobile chassis; the positioning pin comprises a rod part, a head part arranged at one end of the rod part and a locking part arranged at the other end of the rod part; the rod part can penetrate through the through hole, the limiting part limits the head part, and the locking part locks the head part and the positioning block. The rapid fixing clamp is provided with the positioning block and the positioning pin which are matched with each other, and the new energy automobile is rapidly clamped and fixed through the mutual matching of the limiting part arranged on the end face of the positioning block and the head of the positioning pin and the positioning hole in the chassis of the new energy automobile.

Description

Technical Field

[0001] This utility model relates to the field of positioning clamp technology, and in particular to a quick-fixing clamp for the chassis of new energy vehicles. Background Technology

[0002] The chassis of new energy vehicles differs from that of traditional fuel-powered vehicles. When a vehicle is involved in an accident and requires stretching repairs, existing vises can clamp the side skirts on the chassis of fuel-powered vehicles. However, due to battery protection considerations, new energy vehicles have eliminated side skirts in their chassis design, making it impossible for vises to clamp the side skirt-less chassis of new energy vehicles. Therefore, a clamping device is needed to quickly secure new energy vehicles for repair and other operations.

[0003] Chinese utility model patent CN213112358U discloses a height-adjustable repair bench for new energy vehicles. It employs a structure including a base, support platform, sliding groove, locking groove, fixing block, sliding rod, and electric cylinder, using a combination of sliding and springs to achieve multi-directional wheel fixation. However, this wheel-limiting method suffers from insufficient stability, potential wheel damage, and cumbersome operation. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a quick fixing clamp for the chassis of new energy vehicles, which uses the positioning holes set on the chassis of new energy vehicles to achieve quick clamping and fixing of the chassis of new energy vehicles without side skirts.

[0005] To achieve the above objectives, this utility model discloses a quick-fixing fixture for a new energy vehicle chassis, comprising a clamping assembly, which includes a positioning block and a positioning pin. The positioning block has an axially arranged through hole, and a limiting part is provided on one end face near the through hole. The limiting part can pass through the positioning hole on the new energy vehicle chassis and limit its movement. The positioning pin includes a rod, a head disposed at one end of the rod, and a locking part at the other end. The rod can pass through the through hole, the limiting part limits the head, and the locking part locks the head to the positioning block.

[0006] Furthermore, the locking part includes a thread and a nut disposed on the rod.

[0007] Furthermore, the limiting part includes a first boss and a second boss arranged in a stepped shape, the second boss being disposed between the first boss and the end face of the positioning block; the first boss is configured as an arc shape, the arc surface of the first boss is flush with the arc surface of the outer contour of the second boss, and the outer contour of the second boss is positioned and engaged with the positioning hole.

[0008] Furthermore, the head is cylindrical, the rod is offset from the axis of the head, and the diameter of the head is less than or equal to the diameter of the first boss, but greater than the diameter of the through hole.

[0009] Furthermore, the limiting part is configured in an arc shape and there are two of them, symmetrically arranged on both sides of the through hole.

[0010] Furthermore, the head is elliptical cylindrical, the rod is coaxially arranged with the head, and the head is restricted between the two limiting parts.

[0011] Furthermore, a positioning boss is provided between the head and the rod, and the positioning boss can pass through the positioning hole and be positioned and engaged with it.

[0012] Furthermore, the head is provided with a beveled surface to facilitate insertion into the positioning hole.

[0013] Furthermore, both the positioning block and the rod are provided with reference planes, and the relative position of the two reference planes can serve as a reference for the relative position of the head and the limiting part.

[0014] Furthermore, the clamping assembly is mounted on the slide rail via a base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model's quick-fixing clamp is equipped with a cooperating positioning block and positioning pin. Through the cooperation of the limiting part on the end face of the positioning block and the head of the positioning pin, and utilizing the positioning holes on the chassis of the new energy vehicle, the new energy vehicle can be quickly clamped and fixed. This utility model's fixing clamp has a simple structure and is easy to operate. Combined with the base and slide rail, it can quickly fix the new energy vehicle onto the beam straightening platform for further maintenance and other operations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of components on the chassis of a new energy vehicle.

[0019] Figure 3 This is a schematic diagram of the positioning block structure in Embodiment 1 of this utility model;

[0020] Figure 4 This is a schematic diagram of the positioning pin structure in Embodiment 1 of this utility model;

[0021] Figure 5 This is a schematic diagram of the clamping component holding the chassis of a new energy vehicle in Embodiment 1 of this utility model.

[0022] Figure 6 This is a schematic diagram of the mating structure of the positioning block and positioning pin in Embodiment 2 of this utility model;

[0023] Figure 7 This is a schematic diagram of the positioning pin structure in Embodiment 2 of this utility model.

[0024] In the figure, 100 is the clamping assembly; 110 is the positioning block; 111 is the through hole; 112 is the limiting part; 113 is the first boss; 114 is the second boss; 120 is the positioning pin; 121 is the rod; 122 is the head; 123 is the locking part; 124 is the nut; 125 is the positioning boss; 126 is the beveled surface; 130 is the reference plane; 200 is the base; 300 is the slide rail; 400 is the positioning hole; and 500 is the mounting plate. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0026] like Figure 1 and Figure 2 As shown, a quick-fixing fixture for a new energy vehicle chassis includes a clamping assembly 100, a base 200, and a slide rail 300. The clamping assembly 100 is mounted on the slide rail 300 via the base 200. The slide rail 300 is mounted on the main platform of a large number of straightening devices. The clamping assembly 100 can be detachably connected to the base 200 via a mounting plate 500. The base 200 and the slide rail 300 can use existing technical solutions, which will not be described in detail here. New energy vehicle chassis typically have positioning holes 400, which the clamping assembly 100 uses to clamp and fix the new energy vehicle chassis.

[0027] The clamping assembly 100 includes a positioning block 110 and a positioning pin 120, which cooperate to clamp the new energy vehicle chassis between them. The positioning block 110 has an axially arranged through hole 111, and a limiting part 112 is provided on one end face near the through hole 111. The limiting part 112 can pass through the positioning hole 400 on the new energy vehicle chassis and limit its movement. The positioning pin 120 includes a rod 121, a head 122 at one end of the rod 121, and a locking part 123 at the other end. The rod 121 can pass through the through hole 111, the limiting part 112 limits the head 122, and the locking part 123 locks the head 122 to the positioning block 110, thereby clamping the new energy vehicle chassis between the head 122 and the positioning block 110. The locking part 123 includes a thread on the rod 121 and a nut 124 that engages with it. To facilitate the connection between the clamping assembly 100 and the mounting plate 500, a hole is provided on the mounting plate 500 for the rod portion 121 to pass through, so that the mounting plate 500 is positioned between the positioning block 110 and the nut 124. Tightening the nut 124 can achieve a fixed connection between the positioning block 110, the positioning pin 120 and the mounting plate 500.

[0028] The limiting part 112 and the head 122 can be configured in the following two ways.

[0029] Example 1

[0030] like Figures 3-5 As shown, in this embodiment, the limiting part 112 includes a stepped first protrusion 113 and a second protrusion 114, with the second protrusion 114 positioned between the first protrusion 113 and the end face of the positioning block 110. The first protrusion 113 is arc-shaped, with its straight surface close to the through hole 111. The second protrusion 114 surrounds the through hole 111, resembling a crescent shape, with the arc surface of the first protrusion 113 flush with the outer contour arc surface of the second protrusion 114. The head 122 is cylindrical, with the rod 121 offset from the axis of the head 122. The diameter of the head 122 is less than or equal to the diameter of the first protrusion 113, but greater than the diameter of the through hole 111. The outer contour of the second protrusion 114 is the same shape as the positioning hole 400, and the two are positioned and fitted together. This arrangement ensures that the limiting part 112 can pass through the positioning hole 400 without wobbling within it. In use, the bottom surface of the head 122 contacts the top surface of the first boss 113, and the two pass through the positioning hole 400 together on the same axis. Then, rotate the rod 121 so that the head 122 falls onto the second boss 114. Then tighten the nut 124 to complete the installation of the clamping assembly 100.

[0031] Example 2

[0032] like Figure 6 and 7As shown, in this embodiment, the limiting part 112 is arc-shaped and has two parts, symmetrically arranged on both sides of the through hole 111. The outer contour of the limiting part 112 is positioned and engaged with the positioning hole 400. The head 122 is elliptical cylindrical, and the rod part 121 is coaxially arranged with the head 122. The head 122 is restricted between the two limiting parts 112. A positioning boss 125 is also provided between the head 122 and the rod part 121. The positioning boss 125 can pass through the positioning hole 400 and engage with it, that is, the outer contour of the positioning boss 125 is positioned and engaged with the positioning hole 400. In use, first, the positioning pin 120 is installed in the positioning hole 400, and the two are engaged together. Then, the limiting part 112 is passed through the positioning hole 400, and the rod part 121 or the positioning block 110 is rotated so that the head 122 falls between the two limiting parts 112. Then, the nut 124 is tightened to complete the installation of the clamping assembly 100.

[0033] In the two embodiments described above, when rotating the rod 121, since the limiting part 112 and the head 122 are both within the positioning hole 400 and are not easily observed, in one embodiment, both the positioning block 110 and the rod 121 are provided with reference planes 130. The relative position of the two reference planes 130 can serve as a reference for the relative position of the head 122 and the limiting part 112. For example, in Embodiment 1, the position of the reference planes 130 can be set such that when the positions of the two reference planes 130 are close and parallel, it indicates that the head 122 has just rotated to the second boss 114, indicating to the installer that the head 122 has been rotated into position.

[0034] In addition, for ease of operation, the head 122 is provided with a beveled surface 126 for easy insertion into the positioning hole 400.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick-fixing fixture for a new energy vehicle chassis, comprising a clamping assembly (100), characterized in that, The clamping assembly (100) includes a positioning block (110) and a positioning pin (120). The positioning block (110) has an axially arranged through hole (111). A limiting part (112) is provided on one end face near the through hole (111). The limiting part (112) can pass through the positioning hole (400) on the new energy vehicle chassis and limit it. The positioning pin (120) includes a rod (121), a head (122) provided at one end of the rod (121), and a locking part (123) at the other end. The rod (121) can pass through the through hole (111). The limiting part (112) limits the head (122). The locking part (123) locks the head (122) to the positioning block (110).

2. The quick-fixing fixture for new energy vehicle chassis according to claim 1, characterized in that, The locking part (123) includes a thread and a nut (124) provided on the rod part (121).

3. The quick-fixing fixture for new energy vehicle chassis according to claim 1, characterized in that, The limiting part (112) includes a first boss (113) and a second boss (114) arranged in a stepped shape. The second boss (114) is disposed between the first boss (113) and the end face of the positioning block (110). The first boss (113) is configured as an arc shape. The arc surface of the first boss (113) is flush with the outer contour arc surface of the second boss (114). The outer contour of the second boss (114) is positioned and engaged with the positioning hole (400).

4. The quick-fixing fixture for new energy vehicle chassis according to claim 3, characterized in that, The head (122) is cylindrical, and the rod (121) is offset from the head (122) axially. The diameter of the head (122) is less than or equal to the diameter of the first boss (113) and greater than the diameter of the through hole (111).

5. The quick-fixing fixture for new energy vehicle chassis according to claim 1, characterized in that, The limiting part (112) is configured in an arc shape and there are two of them, symmetrically arranged on both sides of the through hole (111).

6. The quick-fixing fixture for new energy vehicle chassis according to claim 5, characterized in that, The head (122) is elliptical cylindrical, the rod (121) is coaxially arranged with the head (122), and the head (122) is restricted between the two limiting parts (112).

7. The quick-fixing fixture for new energy vehicle chassis according to claim 6, characterized in that, A positioning boss (125) is also provided between the head (122) and the rod (121), and the positioning boss (125) can pass through the positioning hole (400) and be positioned and engaged with it.

8. The quick-fixing fixture for new energy vehicle chassis according to claim 1, characterized in that, The head (122) is provided with a beveled surface (126) to facilitate insertion into the positioning hole (400).

9. The quick-fixing fixture for new energy vehicle chassis according to claim 1, characterized in that, Both the positioning block (110) and the rod (121) are provided with reference planes (130), and the relative position of the two reference planes (130) can serve as a reference for the relative position of the head (122) and the limiting part (112).

10. The quick-fixing fixture for new energy vehicle chassis according to claim 1, characterized in that, The clamping assembly (100) is mounted on the slide rail (300) via a base (200).

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