A positioning and limiting structure for assembling a power assembly and a subframe

Abstract

This utility model discloses a positioning and limiting structure for assembling a powertrain and a subframe, relating to the field of automotive suspension system technology. It includes a subframe, a suspension, and a powertrain. The subframe has two symmetrically arranged inclined surfaces. During connection, the suspension rests on the inclined surfaces. Two outwardly protruding positioning slots are provided on the inclined surfaces. The upper surfaces of the two positioning slots have a V-shaped structure. A pair of connecting ears are fixedly provided on both sides of the suspension. The bottom of the pair of connecting ears has a V-shaped inclined edge, and the upper surface of the positioning slot matches the inclined edge. A pair of connecting holes are provided on the inclined surfaces, and a pair of connecting ears have connecting holes corresponding to the first pair of connecting holes. This utility model, through the cooperation between the inclined surfaces on the subframe and the suspension, and the V-shaped positioning slots on the inclined surfaces, enables the powertrain to automatically align, center, and limit its position in the length and width directions during placement.

Description

Technical Field

[0001] This utility model relates to the field of automotive suspension system technology, specifically a positioning and limiting structure for assembling a powertrain and a subframe. Background Technology

[0002] In the process of vehicle assembly, the assembly of the powertrain and the subframe has always been a bottleneck process. The difficulty lies in the fact that during the assembly of the powertrain and the subframe, the four mounting holes on the engine must first be aligned with the four mounting nuts on the subframe, and then connected with bolts. During this process, operators on both sides need to simultaneously complete the hole alignment and bolt tightening operations, which is difficult to operate, time-consuming, and inaccurate in assembly. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a positioning and limiting structure for assembling a powertrain with a subframe, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a positioning and limiting structure for assembling a powertrain and a subframe, comprising a subframe, a suspension, and a powertrain; The subframe has two symmetrically arranged inclined surfaces. When connected, the suspension sits on the inclined surfaces. The inclined surfaces are provided with two outwardly protruding positioning slots. The upper surfaces of the two positioning slots are V-shaped. A pair of connecting ears are fixedly provided on both sides of the suspension. The bottom of the pair of connecting ears has an inclined side with a V-shaped structure. The upper surface of the positioning slot matches the inclined side. A pair of connecting holes 1 are provided on the inclined surface, and a pair of connecting ears are provided with connecting holes 2 corresponding to the pair of connecting holes 1; The suspension has a third connection hole, and a screw for connecting the suspension to the powertrain is installed in the third connection hole; A positioning pin is fixedly installed on the suspension.

[0005] Preferably, the positioning slot is integrally formed with the subframe.

[0006] Preferably, the included angle α1 between the hypotenuses at the bottom of the pair of connecting ears is 110 degrees.

[0007] Preferably, the spacing between a pair of connecting holes is 100 mm.

[0008] Preferably, the included angle α2 between the two inclined planes is 35 degrees.

[0009] This utility model provides a positioning and limiting structure for assembling a powertrain and subframe, which has the following advantages: By cooperating with the inclined surface and the suspension mount on the subframe, and with a V-shaped positioning groove on the inclined surface, the powertrain can automatically be guided, centered, and limited in length and width directions during placement. During assembly, the operator only needs to place the powertrain with the suspension mount onto the subframe, and the structure itself will automatically position it. There is no need for operators on both sides to simultaneously align holes and tighten bolts, simplifying the operation process, improving assembly accuracy, reducing operational difficulty, and saving time. Attached Figure Description

[0010] Figure 1 This is a diagram showing the powertrain after it has been connected to the mounting bracket. Figure 2 For the subframe and suspension three-dimensional Figure 1 ; Figure 3 For the subframe and suspension three-dimensional Figure 2 ; Figure 4 Front view of the subframe and suspension; Figure 5 This is the front view of the inclined plane; Figure 6 This is the suspended main view.

[0011] In the diagram: 1. Subframe; 11. Angled surface; 12. Positioning slot; 13. Connecting hole one; 2. Suspension; 21. Connecting lug; 22. Angled side; 23. Connecting hole two; 24. Connecting hole three; 25. Positioning pin; 3. Powertrain; 4. Screw. Detailed Implementation

[0012] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0013] Please see Figures 1-6 This utility model provides a technical solution: a positioning and limiting structure for assembling a powertrain and a subframe, including a subframe 1, a suspension 2, and a powertrain 3; The subframe 1 has two symmetrically arranged inclined surfaces 11. When connected, the suspension 2 sits on the inclined surfaces 11. The inclined surfaces 11 are provided with two outwardly protruding positioning slots 12. The upper surfaces of the two positioning slots 12 are V-shaped. A pair of connecting ears 21 are fixedly provided on both sides of the suspension 2. The bottom of the pair of connecting ears 21 has a V-shaped inclined side 22. The upper surface of the positioning slot 12 matches the inclined side 22. A pair of connecting holes 13 are provided on the inclined surface 11, and a pair of connecting ears 21 are provided with connecting holes 23 corresponding to the pair of connecting holes 13. The suspension 2 is provided with a connecting hole 3 24, and a screw 4 for connecting the suspension 2 to the powertrain 3 is installed in the connecting hole 3 24. A positioning pin 25 is fixedly installed on the suspension 2.

[0014] As an embodiment of this utility model, the positioning slot 12 is integrally formed with the subframe 1.

[0015] As an embodiment of the present invention, the included angle α1 between the bottom inclined sides 22 of the pair of connecting ears 21 is 110 degrees.

[0016] As one embodiment of this utility model, the distance between the pair of connecting holes 13 is 100mm.

[0017] In one embodiment of this utility model, the included angle α2 between the two inclined planes 11 is 35 degrees.

[0018] The working principle and usage process of this utility model are as follows: First, screws 4 are used to install the suspension 2 onto the powertrain 3. The suspension 2 is positioned by inserting the positioning pin 25 into the positioning hole inside the powertrain 3. The powertrain 3, along with the suspension 2, is placed on the subframe 1 from top to bottom and contacts a pair of inclined surfaces 11. The inclined edges 22 on the pair of connecting ears 21 contact the positioning slots 12 on the subframe 1, allowing the powertrain 3 to fall smoothly onto the subframe 1. The pair of inclined surfaces 11 automatically positions the powertrain 3 and the subframe 1 in the length direction, and the inclined edges 22 contact the positioning slots 12 automatically position the powertrain 3 and the subframe 1 in the width direction, achieving centering self-positioning and limiting functions. At this point, connecting hole 13 and connecting hole 23 are aligned. The connection between the suspension 2 and the powertrain 3 is achieved by the operator screwing bolts into connecting hole 13 and connecting hole 23.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning and limiting structure for assembling a powertrain and a subframe, comprising a subframe (1), a suspension (2), and a powertrain (3), characterized in that: The subframe (1) has two symmetrically arranged inclined surfaces (11). When connected, the suspension (2) sits on the inclined surfaces (11). The inclined surfaces (11) are provided with two outwardly protruding positioning slots (12). The upper surfaces of the two positioning slots (12) are V-shaped. A pair of connecting ears (21) are fixedly provided on both sides of the suspension (2). The bottom of the pair of connecting ears (21) has a V-shaped inclined side (22). The upper surface of the positioning slot (12) matches the inclined side (22). A pair of connecting holes (13) are provided on the inclined surface (11), and a pair of connecting ears (21) are provided with connecting holes (23) corresponding to the pair of connecting holes (13); The suspension (2) is provided with a connecting hole three (24), and a screw (4) for connecting the suspension (2) to the powertrain (3) is installed in the connecting hole three (24); A positioning pin (25) is fixedly provided on the suspension (2).

2. The positioning and limiting structure for the assembly of a power assembly and a subframe according to claim 1, characterized in that, The positioning slot (12) is integrally formed with the subframe (1).

3. The positioning and limiting structure of the power assembly and subframe assembly according to claim 1, characterized in that, The included angle α1 between the bottom hypotenuses (22) of the pair of connecting ears (21) is 110 degrees.

4. The positioning and limiting structure of the power assembly and subframe assembly according to claim 1, characterized in that, The spacing between a pair of the connecting holes (13) is 100 mm.

5. The positioning and limiting structure of the power assembly and subframe assembly according to claim 1, characterized in that, The included angle α2 between the two inclined planes (11) is 35 degrees.

Images