Rear bottom plate positioning device of electrically-controlled tubular column mechanism

Abstract

The utility model discloses a rear bottom plate positioning device of an electrically-controlled tubular column mechanism, which comprises a base and a positioning component, and the positioning component comprises a first lever oil hydraulic cylinder, a second lever oil hydraulic cylinder, a first oil hydraulic support cylinder, a second oil hydraulic support cylinder and a third oil hydraulic support cylinder, the first oil pressure supporting cylinders are arranged on the base and located in front of the first lever oil pressure cylinders, the second oil pressure supporting cylinders are arranged on the base and located in front of the first oil pressure supporting cylinders, and the third oil pressure supporting cylinder is arranged on the base and located between the two second oil pressure supporting cylinders. A first positioning pin pointing upwards is arranged at the top of the first oil pressure supporting cylinder, and a gasket concentric with the first positioning pin is arranged at the top of a shell of the first oil pressure supporting cylinder. By means of the mode, the rear bottom plate positioning device of the electrically-controlled tubular column mechanism can position, press and fix the rear bottom plate, and the stability of a pin seat on the rear bottom plate in the machining process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining of an electro-regulating pipe column mechanism, in particular to a positioning device for the rear bottom plate of an electro-regulating pipe column mechanism. Background Art

[0002] The rear bottom plate structure of the electro-regulating pipe column mechanism is relatively three-dimensional, including two ear seats, two pin seats, a first C-shaped bending plate connected between the two ear seats, and a second C-shaped bending plate connected between the two pin seats. Moreover, the pin seats are located in front of the ear seats, with a compact structure, which brings difficulties to machining.

[0003] The rear bottom plate can be produced by a casting aluminum process for the blank, but the dimensional accuracy requirements of the pin seats are high, and machining centers are required for front and side machining. Due to the special structure of the rear bottom plate, the existing machining center equipment tooling cannot meet the positioning and fixing of the rear bottom plate, and improvement is needed. Summary of the Utility Model

[0004] The main technical problem to be solved by the utility model is to provide a positioning device for the rear bottom plate of an electro-regulating pipe column mechanism, which realizes the positioning and fixing of the rear bottom plate and is convenient for machining the pin seats.

[0005] To solve the above technical problem, a technical solution adopted by the utility model is: to provide a positioning device for the rear bottom plate of an electro-regulating pipe column mechanism, including: a base and a positioning component. The positioning components are arranged on the base at intervals front and back. The positioning component includes a first lever oil cylinder, a second lever oil cylinder, a first oil pressure support cylinder, a second oil pressure support cylinder, and a third oil pressure support cylinder. Two first lever oil cylinders are arranged on the base at intervals left and right. The first oil pressure support cylinder is arranged on the base and in front of the first lever oil cylinder. The second oil pressure support cylinder is arranged on the base and in front of the first oil pressure support cylinder. The third oil pressure support cylinder is arranged on the base and between the two second oil pressure support cylinders. The second lever oil cylinder is arranged on the base and behind the third oil pressure support cylinder. The top of the first oil pressure support cylinder is provided with a first positioning pin pointing upward. The top of the shell of the first oil pressure support cylinder is provided with a washer concentric with the first positioning pin, and the washer is provided with a convex positioning block.

[0006] In a preferred embodiment of the utility model, the washer and the positioning block are made of an integrated steel structure.

[0007] In a preferred embodiment of the utility model, the rear bottom plate is provided with a first positioning hole corresponding to the first positioning pin.

[0008] In a preferred embodiment of the utility model, a clamping groove corresponding to the positioning block is arranged on the back of the rear bottom plate.

[0009] In a preferred embodiment of the present utility model, a hydraulic oil circuit corresponding to the first lever hydraulic cylinder, the second lever hydraulic cylinder, the first hydraulic support cylinder, the second hydraulic support cylinder, and the third hydraulic support cylinder is provided in the base.

[0010] In a preferred embodiment of the present utility model, a second positioning pin pointing upward is provided at the top of the second hydraulic support cylinder.

[0011] In a preferred embodiment of the present utility model, a conical chamfer is provided at the top of the first positioning pin and the second positioning pin.

[0012] In a preferred embodiment of the present utility model, a second positioning hole corresponding to the second positioning pin is provided on the rear bottom plate.

[0013] In a preferred embodiment of the present utility model, a support column pointing upward is provided at the top of the third hydraulic support cylinder.

[0014] The beneficial effects of the present utility model are as follows: A rear bottom plate positioning device of an electric tuning pipe column mechanism pointed out by the present utility model can position and press two ear seats on the rear bottom plate through the cooperation of the first lever hydraulic cylinder and the first hydraulic support cylinder, support and press the second C-shaped bending plate on the rear bottom plate through the cooperation of the second lever hydraulic cylinder and the third hydraulic support cylinder, which is beneficial for the machining center to machine the front and side surfaces of the pin seat on the rear bottom plate, and support and position the bottom of the pin seat through the second hydraulic support cylinder, improving the stability of the pin seat during the machining process and avoiding problems of deformation and detachment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, where:

[0016] Figure 1 is a schematic structural diagram of a preferred embodiment of a rear bottom plate positioning device of an electric tuning pipe column mechanism of the present utility model;

[0017] Figure 2 is Figure 1 a partial cross-sectional view of part A of

[0018] Figure 3 is a schematic structural diagram of a preferred embodiment when the rear bottom plate positioning device of an electric tuning pipe column mechanism of the present utility model positions the rear bottom plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 to 3 , the embodiments of the present utility model include:

[0021] As Figure 1 shown in the rear bottom plate positioning device of the electro-regulating pipe column mechanism, it includes: a base 1 and a positioning component 2. The positioning components 2 are arranged at intervals before and after on the base 1. In this embodiment, 4 groups of positioning components 2 are adopted to position 4 rear bottom plates at one time, improving the processing efficiency.

[0022] The positioning component 2 includes a first lever oil cylinder 21, a second lever oil cylinder 22, a first oil pressure support cylinder 23, a second oil pressure support cylinder 24 and a third oil pressure support cylinder 25. The two first lever oil cylinders 21 are arranged at intervals left and right on the base 1. The first oil pressure support cylinder 23 is arranged on the base 1 and is located in front of the first lever oil cylinder 21. Through the cooperation of the first lever oil cylinder 21 and the first oil pressure support cylinder 23, the positioning and pressing of two ear seats 31 on the rear bottom plate 3 can be carried out.

[0023] As Figure 2 shown, a first positioning pin 26 pointing upward is arranged at the top of the first oil pressure support cylinder 23. A first positioning hole 35 corresponding to the first positioning pin 26 is arranged on the rear bottom plate 3. Specifically, the first positioning hole 35 is located on the two ear seats 31 of the rear bottom plate 3, realizing the precise positioning of the two ear seats 31.

[0024] In this embodiment, a washer 29 concentric with the first positioning pin 26 is arranged at the top of the shell of the first oil pressure support cylinder 23. A convex positioning block 291 is arranged on the washer 29. The washer 29 and the positioning block 291 adopt an integrated steel structure with high strength. The contact area with the bottom of the ear seat 31 is increased through the washer 29, and the stability is high. A card slot corresponding to the positioning block 291 is arranged on the back of the rear bottom plate 3. First, the pre-positioning of the ear seat 31 is realized through the positioning block 291, and then the first oil pressure support cylinder 23 is used to drive the first positioning pin 26 to insert into the first positioning hole 35 to realize precise positioning and radial limit.

[0025] As Figure 3 shown, two pin seats 32 are located in front of the corresponding ear seats 31. A first C-shaped bending plate 33 is connected between the two ear seats 31, and a second C-shaped bending plate 34 is connected between the two pin seats 32, forming a rear bottom plate 3 with an integrated cast aluminum structure.

[0026] The second hydraulic support cylinder 24 is arranged on the base 1 and in front of the first hydraulic support cylinder 23. In this embodiment, a second positioning pin 27 pointing upward is arranged at the top of the second hydraulic support cylinder 24, and a second positioning hole (at the bottom of the pin seat 32) corresponding to the second positioning pin 27 is arranged on the rear bottom plate 3 to support and position the pin seat 32, improving the stability of the pin seat 32 during the processing and avoiding problems of deformation and detachment. Tapered chamfers are arranged at the tops of the first positioning pin 26 and the second positioning pin 27 to improve the smoothness and positioning accuracy of the upward positioning action.

[0027] The third hydraulic support cylinder 25 is arranged on the base 1 and between the two second hydraulic support cylinders 24. In this embodiment, a support column 28 pointing upward is arranged at the top of the third hydraulic support cylinder 25 to support the middle part of the second C-shaped bending plate 34. The second lever hydraulic cylinder 22 is arranged on the base 1 and behind the third hydraulic support cylinder 25 to press and fix the middle part of the second C-shaped bending plate 34, improving the structural stability without affecting the processing of the front and both sides of the pin seat 32.

[0028] As Figure 1 shown, a hydraulic oil circuit 11 corresponding to the first lever hydraulic cylinder 21, the second lever hydraulic cylinder 22, the first hydraulic support cylinder 23, the second hydraulic support cylinder 24, and the third hydraulic support cylinder 25 is arranged in the base 1. The hydraulic oil circuit 11 can be controlled by a solenoid valve to realize the actions of the first lever hydraulic cylinder 21, the second lever hydraulic cylinder 22, the first hydraulic support cylinder 23, the second hydraulic support cylinder 24, and the third hydraulic support cylinder 25, with a high degree of automation.

[0029] In summary, a rear bottom plate positioning device of an electro-regulating pipe column mechanism pointed out by the present utility model can simultaneously perform positioning and pressing and fixing of multiple rear bottom plates, facilitating the processing of pin seats on the rear bottom plates and improving the stability of the rear bottom plates during the processing.

[0030] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structural or equivalent process transformation made by using the content of the specification of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A rear bottom plate positioning device of an electrically adjustable column mechanism, used for positioning and pressing the rear bottom plate, characterized in that: include: A base and a positioning assembly, the positioning assembly is arranged on the base at a front-to-back interval, the positioning assembly includes a first lever oil hydraulic cylinder, a second lever oil hydraulic cylinder, a first oil hydraulic support cylinder, a second oil hydraulic support cylinder and a third oil hydraulic support cylinder, the two first lever oil hydraulic cylinders are arranged on the base at a left-right interval, the first oil hydraulic support cylinder is arranged on the base and is located in front of the first lever oil hydraulic cylinder, the second oil hydraulic support cylinder is arranged on the base and is located in front of the first oil hydraulic support cylinder, the third oil hydraulic support cylinder is arranged on the base and is located between the two second oil hydraulic support cylinders, the second lever oil hydraulic cylinder is arranged on the base and is located behind the third oil hydraulic support cylinder, a first positioning pin pointing upwards is arranged on the top of the first oil hydraulic support cylinder, a washer concentric with the first positioning pin is arranged on the top of the shell of the first oil hydraulic support cylinder, and an upward convex positioning block is arranged on the washer.

2. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 1, characterized in that: The washer and the positioning block adopt an integrated steel structure.

3. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 1, characterized in that: The rear bottom plate is provided with a first positioning hole corresponding to the first positioning pin.

4. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 1, characterized in that: A card slot corresponding to the positioning block is arranged on the back side of the rear bottom plate.

5. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 1, characterized in that: The base is provided with hydraulic oil circuits corresponding to the first lever oil cylinder, the second lever oil cylinder, the first oil support cylinder, the second oil support cylinder and the third oil support cylinder.

6. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 1, characterized in that: A second positioning pin pointing upwards is arranged on the top of the second hydraulic support cylinder.

7. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 6, characterized in that: The first positioning pin and the second positioning pin are provided with conical chamfers on their tops.

8. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 6, characterized in that: The rear bottom plate is provided with a second positioning hole corresponding to the second positioning pin.

9. The rear bottom plate positioning device of the electrically adjustable column mechanism according to claim 1, characterized in that: A support column pointing upward is arranged on the top of the third hydraulic support cylinder.

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