An auxiliary positioning component and method

Through auxiliary positioning components and methods, the combination of positioning bolts and positioning seats is used to solve the problem of difficulty in installing the radiator, simplifying operation, improving reliability and consistency, extending the life of the buffer block, and ensuring stable installation of the radiator.

CN109484160BActive Publication Date: 2025-07-18ZHUHAI GUANGTONG AUTOMOBILE +1
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Patent Information

Application Number
CN201811585450.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2018-12-24
Publication Date
2025-07-18
Estimated Expiration
2038-12-24

AI Technical Summary

Technical Problem

In the prior art, the installation and operation of the radiator is difficult, time-consuming and labor-intensive, and the quality consistency and reliability of the product cannot be guaranteed, especially when the upper and lower support structure is used under the limitation of the vehicle body structure.

Method used

Auxiliary positioning components and methods are adopted, including positioning bolts and positioning seats. The positioning seat is composed of a horizontal plate, a vertical plate and a central boss. The positioning bolts are rotatably combined with the radiator to drive the positioning seat to squeeze the radiator to ensure that the buffer block maintains the compression amount and achieve stable installation of the radiator.

Benefits of technology

It simplifies the installation process of the radiator, improves the reliability of the installation and product consistency, prevents the radiator from shaking, extends the life of the buffer block, and enhances the reliability of the radiator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides an auxiliary positioning component and method, which relates to the field of new energy vehicles. The auxiliary positioning component is used for installing a radiator on a vehicle. The auxiliary positioning component includes a positioning bolt and a positioning seat. The positioning seat includes a transverse plate, a vertical plate and a central boss. Two vertical plates are vertically connected to opposite ends of the transverse plate. The vertical plates are used for supporting on an upper pulling frame. The central boss is arranged at the center position of the transverse plate and on the same side of the transverse plate as the vertical plates. The height of the central boss relative to the transverse plate is less than the height of the vertical plates relative to the transverse plate. Through holes are provided at the central positions of the transverse plate and the central boss. The positioning bolt is used for passing through the through holes and screwing with the radiator, so as to squeeze the positioning seat towards the radiator. The auxiliary positioning component and method can be used in the process of installing the radiator on the vehicle body, making the installation operation easy, with good product consistency and good installation reliability.
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Description

Technical Field

[0001] The present invention relates to the field of new energy vehicles, and more particularly, to an auxiliary positioning component and method. Background Art

[0002] With the continuous development of passenger buses, the use of radiators in passenger buses has become increasingly common. As a cooling device for the engine or motor of a passenger bus, the reliability of radiator installation is very important.

[0003] There are two types of suspension forms for radiators. One is to sleeved buffer blocks on both sides of the radiator and support it on the frame beam with brackets. The other is to set two fulcrums on the upper and lower surfaces of the radiator respectively, and each fulcrum is installed on the frame through a buffer block and a bracket.

[0004] Some passenger buses are restricted by the overall vehicle structure and need to adopt a support structure on the upper and lower surfaces. When installing the two fulcrums on the upper surface of the radiator, one person needs to press the bracket to ensure that there is no gap between the bracket and the buffer block and to make the buffer block have a certain compression amount, while another person fixes the bracket. This installation method is difficult to operate, time-consuming and laborious, and cannot ensure the product quality. Summary of the Invention

[0005] An embodiment of the present invention provides an auxiliary positioning component, which can be used in the process of installing a radiator on a vehicle body, making the installation operation easy, having good product consistency and good installation reliability.

[0006] An embodiment of the present invention also provides an auxiliary positioning method, which has a simple operation, enables the buffer block to maintain a certain compression amount, ensures product consistency, and improves the reliability of radiator installation.

[0007] The first technical solution provided by the embodiment of the present invention:

[0008] An auxiliary positioning component is used for installing a radiator on a vehicle. The auxiliary positioning component includes a positioning bolt and a positioning seat. The positioning seat includes a horizontal plate, a vertical plate and a central boss. The two vertical plates are vertically connected to opposite ends of the horizontal plate. The vertical plates are used to support on the upper pull frame. The central boss is arranged at the central position of the horizontal plate and on the same side of the horizontal plate as the vertical plates. The height of the central boss relative to the horizontal plate is less than the height of the vertical plates relative to the horizontal plate. Through holes are opened at the central positions of the horizontal plate and the central boss. The positioning bolt is used to penetrate through the through holes and be screwed with the radiator, so as to squeeze the positioning seat towards the radiator.

[0009] Further, the horizontal plate is of a cuboid structure, and the two vertical plates are connected to the two ends of the horizontal plate in the length direction.

[0010] Further, the vertical plate is of a cuboid structure. One end of the vertical plate is vertically connected to the horizontal plate, and the other end of the vertical plate is used to support on the upper pulling frame.

[0011] Further, the central boss is a hollow cylindrical structure. One end face of the central boss is used to connect to the horizontal plate, and the other end face of the central boss is used to abut against the upper fixing boss of the radiator.

[0012] Further, the height of the central boss relative to the horizontal plate is one-third to one-half of the height of the vertical plate relative to the horizontal plate.

[0013] The second technical solution provided by the embodiment of the present invention:

[0014] An auxiliary positioning method is used for installing a radiator on a vehicle body. Using the auxiliary positioning component described in the first technical solution, it includes the following steps:

[0015] Connect the upper pulling frame and the fixing frame with a bolt assembly, and keep the bolt assembly loose;

[0016] Support the vertical plate of the positioning seat on the upper pulling frame, and align the through hole of the positioning seat with the threaded hole of the upper fixing boss of the radiator;

[0017] Pass the positioning bolt through the through hole of the positioning seat and thread it with the threaded hole of the upper fixing boss of the radiator until the positioning bolt drives the central boss of the positioning seat to abut against the upper fixing boss of the radiator;

[0018] Tighten the bolt assembly connected to the upper pulling frame and the fixing frame.

[0019] Further, the step of connecting the upper pulling frame and the fixing frame with a bolt assembly and keeping the bolt assembly loose includes:

[0020] Pass a bolt through the first waist-shaped hole of the fixing frame and the second waist-shaped hole of the upper pulling frame, then screw a nut on the bolt, and make the bolt and the nut loose relative to the fixing frame and the upper pulling frame.

[0021] Further, the step of supporting the vertical plate of the positioning seat on the upper pulling frame and aligning the through hole of the positioning seat with the threaded hole of the upper fixing boss of the radiator includes:

[0022] Correspond the central boss of the positioning seat with the upper fixing boss of the radiator. There is a distance H between the central boss of the positioning seat and the upper fixing boss of the radiator, and the distance H is less than the thickness of the horizontal part of the buffer block.

[0023] Further, the step of passing the positioning bolt through the through hole of the positioning seat and screwing it into the threaded hole of the upper fixing boss of the radiator until the positioning bolt drives the central boss of the positioning seat to abut against the upper fixing boss of the radiator includes:

[0024] Gradually screw the positioning bolt into the threaded hole. The positioning bolt drives the positioning seat to move downward relative to the radiator. The positioning seat drives the upper pulling frame to move downward relative to the radiator. The positioning seat squeezes the horizontal portion of the buffer block relative to the radiator, causing the horizontal portion of the buffer block to compress.

[0025] Until the positioning bolt drives the positioning seat to abut against the upper fixing boss of the radiator, and the positioning seat moves downward to the limit position relative to the radiator, that is, the positioning seat moves downward by a distance H relative to the radiator.

[0026] Further, after the step of tightening the bolt assembly connected between the upper pulling frame and the fixing frame, it further includes:

[0027] Unscrew the positioning bolt and remove the positioning seat.

[0028] The beneficial effects of the auxiliary positioning assembly and method provided by the embodiments of the present invention are:

[0029] Support the vertical plate of the positioning seat on the upper pulling frame. Pass the positioning bolt through the through hole of the positioning seat and screw it into the threaded hole of the upper fixing boss of the radiator until the positioning bolt drives the central boss of the positioning seat to abut against the upper fixing boss of the radiator, so that the horizontal portion of the buffer block maintains a certain compression amount. Then tighten the bolt assembly on the upper pulling frame and the fixing frame. In this way, the installation operation is easy, ensuring that there is no gap between the radiator and the upper pulling frame. The compression amount of the buffer block is controlled, preventing the radiator from loosening, vibrating and being damaged, effectively ensuring the consistency of the product, improving the service life of the buffer block, and also improving the reliability of the radiator. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic diagram of a perspective view after the radiator and the vehicle body are assembled according to the embodiments of the present invention.

[0032] Figure 2This is a schematic diagram of another perspective after the radiator provided by the embodiment of the present invention is assembled with the vehicle body.

[0033] Figure 3 It is Figure 2 An enlarged schematic diagram of the local part A in

[0034] Figure 4 It is a structural schematic diagram of the buffer block.

[0035] Figure 5a And Figure 5b It is a structural schematic diagram of the fixing bracket.

[0036] Figure 6a And Figure 6b It is a structural schematic diagram of the upper pull bracket.

[0037] Figure 7 It is Figure 2 An enlarged schematic diagram of the local part B in

[0038] Figure 8 It is a structural schematic diagram of the auxiliary positioning component.

[0039] Figure 9 It is a schematic diagram of the working state of the auxiliary positioning component.

[0040] Icon: 1 - vehicle body; 2 - radiator; 21 - lower fixing boss; 22 - upper fixing boss; 3 - support beam; 4 - fixing bracket; 41 - first kidney-shaped hole; 5 - upper pull bracket; 51 - first side plate; 52 - second kidney-shaped hole; 53 - second side plate; 54 - positioning hole; 6 - buffer block; 61 - horizontal part; 62 - vertical part; 7 - positioning bolt; 8 - positioning seat; 81 - cross plate; 82 - vertical plate; 83 - central boss. Specific embodiments

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0043] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the inventive product is customarily placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0045] In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0046] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] This embodiment provides an auxiliary positioning method for installing a radiator 2 on a vehicle body 1. Please refer to Figure 1 and Figure 2 , the vehicle includes a vehicle body 1 and a support beam 3, a fixing bracket 4, and an upper pulling bracket 5 installed on the vehicle body 1. Please refer to Figure 3 , two mounting holes are formed on the support beam 3, and the mounting holes are used for installing buffer blocks 6. The radiator 2 includes two lower fixing bosses 21, and the two lower fixing bosses 21 are respectively installed in the two mounting holes through the buffer blocks 6.

[0048] Please refer to Figure 4 , the buffer block 6 includes a horizontal portion 61 and a vertical portion 62 connected to the center position of the horizontal portion 61. A through hole is formed through the centers of the horizontal portion 61 and the vertical portion 62, and the buffer block 6 is sleeved on the lower fixing boss 21 through the through hole. The horizontal portion 61 of the buffer block 6 is attached to the surface of the radiator 2.

[0049] Please refer to FIG. 5. Two first waist-shaped holes 41 are formed in the fixing bracket 4, and the major axes of the two first waist-shaped holes 41 are parallel to each other. Please refer to FIG. 6. The overall shape of the upper pulling bracket 5 is L-shaped. The upper pulling bracket 5 includes a first side plate 51 and a second side plate 53 connected to the first side plate 51. Two second waist-shaped holes 52 are formed in the first side plate 51, and the major axes of the two second waist-shaped holes 52 are parallel to each other. The two first waist-shaped holes 41 and the two second waist-shaped holes 52 correspond to each other one by one, and the major axis of the first waist-shaped hole 41 is perpendicular to the major axis of the second waist-shaped hole 52. The connecting bolt passes through the first waist-shaped hole 41 and the second waist-shaped hole 52, so that the fixing bracket 4 is detachably connected to the first side plate 51 of the upper pulling bracket 5.

[0050] Please refer to Figure 7 , the radiator 2 further includes two upper fixing bosses 22. A threaded hole is formed at the central position of the upper fixing boss 22 for connecting the positioning bolt 7. Two buffer blocks 6 are respectively sleeved on the two upper fixing bosses 22. A positioning hole 54 is formed in the second side plate 53 of the upper pulling plate, and the second side plate 53 is sleeved on the buffer block 6 outside the upper fixing boss 22 through the positioning hole 54.

[0051] Please refer to Figure 8 , the auxiliary positioning assembly provided in this embodiment is used in the process of installing the radiator 2 on the vehicle body 1. The auxiliary positioning assembly includes a positioning bolt 7 and a positioning seat 8. The positioning seat 8 includes a cross plate 81, a vertical plate 82 and a central boss 83. The two vertical plates 82 are vertically connected to opposite ends of the cross plate 81. The vertical plate 82 is used to support on the upper pulling bracket 5. The central boss 83 is disposed at the central position of the cross plate 81 and on the same side of the cross plate 81 as the vertical plate 82. The height of the central boss 83 relative to the cross plate 81 is less than the height of the vertical plate 82 relative to the cross plate 81. Through holes are formed at the central positions of the cross plate 81 and the central boss 83. The positioning bolt 7 is used to pass through the through holes and be screwed with the radiator 2, so as to squeeze the positioning seat 8 towards the radiator 2.

[0052] The cross plate 81 is of a cuboid structure, and the two vertical plates 82 are connected to both ends of the cross plate 81 in the length direction. The vertical plate 82 is of a cuboid structure. One end of the vertical plate 82 is vertically connected to the cross plate 81, and the other end of the vertical plate 82 is used to support on the upper pulling bracket 5. The central boss 83 is of a hollow cylindrical structure. One end face of the central boss 83 is used to connect to the cross plate 81, and the other end face of the central boss 83 is used to abut against the upper fixing boss 22 of the radiator 2. The height of the central boss 83 relative to the cross plate 81 is one-third to one-half of the height of the vertical plate 82 relative to the cross plate 81.

[0053] In other embodiments, the cross plate 81 may also be of a circular plate-like structure, and the vertical plate 82 is of an arc-shaped plate-like structure. A plurality of vertical plates 82 are connected to the edge of the cross plate 81 at equal intervals and are located on the same circumference.

[0054] Optionally, the length of the screw rod of the positioning bolt 7 is 1.5 to 2.5 times the length of the through hole on the positioning seat 8, and threads are provided on the entire outer peripheral surface of the screw rod of the positioning bolt 7.

[0055] The auxiliary positioning method provided by this embodiment includes the following steps:

[0056] Step 1: Install the buffer block 6 into the installation hole of the support beam 3.

[0057] Specifically, the vertical portion 62 of the buffer block 6 is inserted into the installation hole of the support beam 3, and the horizontal portion 61 of the buffer block 6 is attached to the surface of the support beam 3.

[0058] Step 2: Install the lower fixing boss 21 of the radiator 2 into the through hole of the buffer block 6.

[0059] Specifically, the lower surface of the radiator 2 is attached to the horizontal portion 61 of the buffer block 6, and the radiator 2 presses the horizontal portion 61 of the buffer block 6 under the action of gravity, and the two buffer blocks 6 stably support the radiator 2.

[0060] Step 3: Sleeve the buffer block 6 on the upper fixing boss 22 of the radiator 2.

[0061] Specifically, the horizontal portion 61 of the buffer block 6 is attached to the upper surface of the radiator 2, and the vertical portion 62 of the buffer block 6 is sleeved on the upper fixing boss 22 of the radiator 2.

[0062] Step 4: Sleeve the positioning hole 54 of the upper pull frame 5 on the buffer block 6.

[0063] Specifically, the positioning hole 54 on the second side plate 53 of the upper pull frame 5 is sleeved on the outer periphery of the vertical portion 62 of the buffer block 6, and the second side plate 53 of the upper pull frame 5 is attached to the horizontal portion 61 of the buffer block 6. The second side plate 53 of the upper pull frame 5 is in a horizontal state, the first side plate 51 of the upper pull frame 5 is in a vertical state, and the long axis of the second waist-shaped hole 52 on the first side plate 51 of the upper pull frame 5 is in a horizontal state.

[0064] Step 5: Connect the upper pull frame 5 and the fixed frame 4 with a bolt assembly, and keep the bolt assembly loose.

[0065] Specifically, pass a bolt through the first waist-shaped hole 41 of the fixed frame 4 and the second waist-shaped hole 52 of the upper pull frame 5, then screw a nut on the bolt, and make the bolt and the nut have a certain looseness relative to the fixed frame 4 and the upper pull frame 5. A spring washer and a flat washer can also be sleeved on the bolt.

[0066] Step 6: Support the vertical plate 82 of the positioning seat 8 on the upper pull frame 5, and align the through hole of the positioning seat 8 with the threaded hole of the upper fixing boss 22 of the radiator 2.

[0067] Specifically, please refer to Figure 9, align the central boss 83 of the positioning seat 8 with the upper fixing boss 22 of the radiator 2. There is a certain distance H between the central boss 83 of the positioning seat 8 and the upper fixing boss 22 of the radiator 2, and the distance H is less than the thickness of the horizontal part 61 of the buffer block 6. The distance H is designed according to the required compression amount of the buffer block 6.

[0068] Step 7: Pass the positioning bolt 7 through the through hole of the positioning seat 8 and screw it into the threaded hole of the upper fixing boss 22 of the radiator 2 until the central boss 83 of the positioning seat 8 driven by the positioning bolt 7 abuts against the upper fixing boss 22 of the radiator 2.

[0069] Specifically, gradually screw the positioning bolt 7 into the threaded hole. The positioning bolt 7 will drive the positioning seat 8 to move downward relative to the radiator 2. The positioning seat 8 drives the upper pull frame 5 to move downward relative to the radiator 2. The positioning seat 8 squeezes the horizontal part 61 of the buffer block 6 relative to the radiator 2, causing the horizontal part 61 of the buffer block 6 to be compressed. Until the positioning bolt 7 drives the positioning seat 8 to abut against the upper fixing boss 22 of the radiator 2, and the positioning seat 8 moves downward relative to the radiator 2 to the limit position, that is, the positioning seat 8 moves downward relative to the radiator 2 by a distance H. In this way, the horizontal part 61 of the buffer block 6 is compressed by a thickness of H in thickness.

[0070] Step 8: Tighten the bolt assembly connecting the upper pull frame 5 and the fixing frame 4.

[0071] Specifically, tighten the nut on the bolt to firmly connect the upper pull frame 5 and the fixing frame 4. At this time, the horizontal part 61 of the buffer block 6 on the upper fixing boss 22 maintains a compression amount of H.

[0072] Step 9: Unscrew the positioning bolt 7 and remove the positioning seat 8.

[0073] Specifically, after unscrewing the positioning bolt 7, when the upper pull frame 5 and the fixing frame 4 are firmly connected, the horizontal part 61 of the buffer block 6 on the upper fixing boss 22 still maintains a compression amount of H. Then, completely remove the positioning bolt 7 and the positioning seat 8, that is, complete the work of installing the radiator 2 on the vehicle body 1.

[0074] The auxiliary positioning method provided by the embodiment of the present invention enables the installation of the radiator 2 to be easy and natural by using the auxiliary positioning component. The installation can be completed instantly by using an electric or pneumatic wrench, and the entire operation can be completed by one person, saving human resources. At the same time, it ensures that the buffer block 6 reaches the ideal compression amount, and will not cause the phenomenon that the radiator 2 shakes due to the gap between the buffer block 6 and the upper pull frame 5, ensuring the consistency requirements of the product, improving the buffer and shock absorption effect of the radiator 2, and ensuring the reliability of the radiator 2.

[0075] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An auxiliary positioning method for installing a radiator on a vehicle body, characterized in that, An auxiliary positioning component is adopted. The auxiliary positioning component includes a positioning bolt and a positioning seat. The positioning seat includes a transverse plate, a vertical plate and a central boss. The two vertical plates are vertically connected to opposite ends of the transverse plate. The vertical plates are used to support on the upper pulling frame. The central boss is arranged at the center position of the transverse plate and on the same side of the transverse plate as the vertical plates. The height of the central boss relative to the transverse plate is less than the height of the vertical plates relative to the transverse plate. Through holes are formed at the center positions of the transverse plate and the central boss. The positioning bolt is used to penetrate through the through holes and be screwed with the radiator, so as to squeeze the positioning seat towards the radiator; The auxiliary positioning method includes the following steps: Connect the upper pulling frame and the fixed frame with a bolt assembly, and keep the bolt assembly loose; Support the vertical plates of the positioning seat on the upper pulling frame, and align the through holes of the positioning seat with the threaded holes of the upper fixing boss of the radiator; Pass the positioning bolt through the through hole of the positioning seat and screw it with the threaded hole of the upper fixing boss of the radiator until the central boss of the positioning seat driven by the positioning bolt abuts against the upper fixing boss of the radiator; Tighten the bolt assembly connected between the upper pulling frame and the fixed frame.

2. The auxiliary positioning method according to claim 1, wherein The step of connecting the upper pulling frame and the fixed frame with a bolt assembly and keeping the bolt assembly loose includes: Pass a bolt through the first waist-shaped hole of the fixed frame and the second waist-shaped hole of the upper pulling frame, then screw a nut on the bolt, and make the bolt and the nut loose relative to the fixed frame and the upper pulling frame.

3. The auxiliary positioning method according to claim 1, characterized in that The step of supporting the vertical plates of the positioning seat on the upper pulling frame and aligning the through holes of the positioning seat with the threaded holes of the upper fixing boss of the radiator includes: Correspond the central boss of the positioning seat with the upper fixing boss of the radiator. There is a distance H between the central boss of the positioning seat and the upper fixing boss of the radiator. The distance H is less than the thickness of the horizontal part of the buffer block.

4. The auxiliary positioning method according to claim 3, wherein The step of passing the positioning bolt through the through hole of the positioning seat and screwing it with the threaded hole of the upper fixing boss of the radiator until the central boss of the positioning seat driven by the positioning bolt abuts against the upper fixing boss of the radiator includes: Gradually screw the positioning bolt into the threaded hole. The positioning bolt drives the positioning seat to move downward relative to the radiator. The positioning seat drives the upper pulling frame to move downward relative to the radiator. The positioning seat squeezes the horizontal part of the buffer block relative to the radiator, so that the horizontal part of the buffer block is compressed; Until the positioning bolt drives the positioning seat to abut against the upper fixing boss of the radiator, and the positioning seat moves downward to the limit position relative to the radiator, that is, the positioning seat moves downward a distance H relative to the radiator.

5. The auxiliary positioning method according to claim 1, wherein After the step of tightening the bolt assembly connected between the upper pulling frame and the fixed frame, it further includes: Unscrew the positioning bolt and remove the positioning seat.

Citation Information

Patent Citations

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    CN103277181A

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    CN209351237U