Floating type positioning device for rear frame

Abstract

The utility model discloses a floating type positioning device for a rear frame, which relates to the technical field of positioning devices and comprises a bottom plate and four I-shaped supporting seats, each supporting seat is connected with a fixed seat, each fixed seat is provided with a floating seat, each floating seat is connected with a supporting column, the top of each supporting column is coaxially connected with a sleeve column, and the sleeve column is sleeved on the bottom plate. And the supporting seat, the fixed seat and the floating seat are jointly connected with four connecting bolts. Floating type positioning design is adopted, gaps exist between the connecting bolts on the floating seat and the bolt holes, so that the sleeve columns can deviate in all directions, sliding friction between the floating seat and the fixed seat is reduced through the springs, the problem that a frame cannot be quickly positioned and placed after certain dimensional tolerance exists is solved, and the service life of the frame is prolonged. And subsequent assembling and machining of the frame are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning devices, in particular to a floating positioning device for a rear frame. Background Art

[0002] The frame is a framework structure that spans the front and rear axles of the car, commonly known as the beam. It is the base of the car and is generally composed of two longitudinal beams and several cross beams. It is supported on the wheels via the suspension device, the front axle, and the rear axle. The frame must have sufficient strength and rigidity to withstand the load of the car and the impact from the wheels.

[0003] The rear frame is welded from multiple parts during production. Each frame has a certain size tolerance due to welding. Figure 4 As shown, the distances between the four positioning sleeves 101 on each frame body 1 are not exactly the same, and the frame body 1 needs to be positioned when subsequent components are installed. However, the existing positioning device has a fixed size and cannot be applied to a frame with a certain dimensional tolerance, thereby affecting the assembly of subsequent components. Therefore, a rear frame floating positioning device is proposed. Utility Model Content

[0004] The utility model aims to solve the problems mentioned in the above background technology and proposes a floating positioning device for a rear frame.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rear frame floating positioning device comprises a base plate and four I-shaped support seats, each of the support seats is connected to a fixed seat, the fixed seat is provided with a floating seat, the floating seat is connected to a support column, the top of the support column is coaxially connected to a sleeve column, and the support seat, the fixed seat and the floating seat are commonly connected by four connecting bolts.

[0007] Preferably, four bolt holes are provided on the floating seat, each of the bolt holes is composed of a limiting hole and a sliding hole, and the diameter of the limiting hole is larger than the diameter of the sliding hole.

[0008] Preferably, the connection points of the support seat, the fixed seat and the floating seat are commonly connected with a connecting groove, a spring is arranged in the connecting groove, and the two ends of the spring are respectively connected with the connecting groove wall of the support column and the connecting groove wall of the support seat.

[0009] Preferably, the diameter of the sliding hole is larger than the diameter of the screw on the connecting bolt, and the diameter of the sliding hole is smaller than the outer diameter of the nut on the connecting bolt.

[0010] Preferably, the diameter of the sleeve column is smaller than the diameter of the support column, and both the support column and the sleeve column are made of stainless steel.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model adopts a floating positioning design, utilizing the gap between the connecting bolt and the bolt hole on the floating seat so that the sleeve column can be offset in all directions, and at the same time utilizes a spring to reduce the sliding friction between the floating seat and the fixed seat, thereby solving the problem that the frame cannot be quickly positioned and placed after a certain dimensional tolerance exists, and facilitating subsequent assembly and processing of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the utility model in use.

[0014] Figure 2 It is a structural schematic diagram of the utility model.

[0015] Figure 3 It is a structural sectional view of the floating seat part in the utility model.

[0016] Figure 4 It is a structural diagram of the frame body.

[0017] In the figure: 1 frame body, 101 positioning sleeve, 2 bottom plate, 3 support seat, 4 fixed seat, 5 floating seat, 6 support column, 7 sleeve column, 8 connecting bolt, 9 bolt hole, 901 limit hole, 902 sliding hole, 10 connecting groove, 11 spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-3 As shown, a rear frame floating positioning device includes a base plate 2 and four I-shaped support seats 3, each of the support seats 3 is connected to a fixed seat 4, the fixed seat 4 is provided with a floating seat 5, the floating seat 5 is connected to a support column 6, the top of the support column 6 is coaxially connected to a sleeve column 7, and the support seat 3, the fixed seat 4 and the floating seat 5 are commonly connected with four connecting bolts 8.

[0020] In this embodiment, four bolt holes 9 are provided on the floating seat 5, each of the bolt holes 9 is composed of a limiting hole 901 and a sliding hole 902, the aperture of the limiting hole 901 is larger than the aperture of the sliding hole 902, the aperture of the sliding hole 902 is larger than the diameter of the screw on the connecting bolt 8, and the aperture of the sliding hole 902 is smaller than the outer diameter of the nut on the connecting bolt 8.

[0021] In this embodiment, the connection points of the support seat 3, the fixed seat 4 and the floating seat 5 are commonly connected with a connecting groove 10, and a spring 11 is arranged in the connecting groove 10. The two ends of the spring 11 are respectively connected with the groove wall of the connecting groove 10 of the support column 6 and the groove wall of the connecting groove 10 of the support seat 3.

[0022] In this embodiment, the diameter of the sleeve column 7 is smaller than the diameter of the support column 6. The support column 6 and the sleeve column 7 are both made of stainless steel, so that the support column 6 and the sleeve column 7 have good rust-proof and wear-resistant properties.

[0023] Working process and principle:

[0024] When in use, the four positioning sleeves 101 on the frame plate 1 are aligned with the four sleeve columns 7 on the device and inserted into them respectively. Since there is a gap between the connecting bolt 8 and the bolt hole 9 on the floating seat 5, the floating seat 5 can move within the diameter range of the sliding hole 902, so that the sleeve column 7 can be offset in all directions. At the same time, the upward force of the spring 11 reduces the friction between the floating seat 5 and the fixed seat 4, which is beneficial to the movement of the floating seat 5, the support column 6 and the sleeve column 7. When the four positioning sleeves 101 on the frame plate 1 are all inserted into the sleeve column 7, it is convenient to carry out subsequent assembly and processing of the frame.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rear frame floating positioning device, characterized in that: The invention comprises a bottom plate (2) and four I-shaped support seats (3), each of the support seats (3) being connected to a fixed seat (4), a floating seat (5) being arranged on the fixed seat (4), a support column (6) being connected to the floating seat (5), a sleeve column (7) being coaxially connected to the top of the support column (6), and four connecting bolts (8) being commonly connected to the support seat (3), the fixed seat (4) and the floating seat (5).

2. A rear frame floating positioning device according to claim 1, characterized in that: The floating seat (5) is provided with four bolt holes (9), each of the bolt holes (9) is composed of a limiting hole (901) and a sliding hole (902), and the diameter of the limiting hole (901) is larger than the diameter of the sliding hole (902).

3. The rear frame floating positioning device according to claim 1, characterized in that: The connection points of the support seat (3), the fixed seat (4) and the floating seat (5) are commonly connected with a connection groove (10), a spring (11) is arranged in the connection groove (10), and two ends of the spring (11) are respectively connected to the groove wall of the connection groove (10) of the support column (6) and the groove wall of the connection groove (10) of the support seat (3).

4. A rear frame floating positioning device according to claim 2, characterized in that: The diameter of the sliding hole (902) is larger than the diameter of the screw on the connecting bolt (8), and the diameter of the sliding hole (902) is smaller than the outer diameter of the nut on the connecting bolt (8).

5. The rear frame floating positioning device according to claim 1, characterized in that: The diameter of the sleeve column (7) is smaller than the diameter of the support column (6), and both the support column (6) and the sleeve column (7) are made of stainless steel.

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