CN217394367U

CN217394367U - Bogie center pin processing and positioning device

Info

Publication number: CN217394367U
Application number: CN202220947274.1U
Authority: CN
Inventors: 薛文建
Original assignee: Jinzhou Jietong Railway Vibration Damping Equipment Co ltd; Jinzhou Jietong Railway Machinery Co ltd
Current assignee: Jinzhou Jietong Railway Vibration Damping Equipment Co ltd; Jinzhou Jietong Railway Machinery Co ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-09-09
Anticipated expiration: 2032-04-22

Abstract

The utility model relates to a bogie king pin processing positioner, include: the top end of the base is a plane and is used for supporting; the center chuck is connected to the middle of the top end of the base, three clamping jaws of the center chuck are abutted to a reference circle at the bottom of the center pin, and a guide cone is mounted in the center of the center chuck; the top end of the base is fixedly provided with three plane supporting blocks with top surfaces in the same plane around the central chuck, and the plane supporting blocks are used for supporting the bottom plane of the central pin; the top end of the base surrounds the three plane supporting blocks, and four clamping mechanisms are fixed on the top end of the base and used for clamping the edge of the center pin; and the base is provided with two angular positioning mechanisms relative to the end faces of the two sides of the center pin. The positioning device is simple to operate, time-saving and labor-saving, improves the machining efficiency, is accurate in positioning, improves the product precision, and ensures the use performance and safety of products.

Description

Bogie center pin processing and positioning device

Technical Field

The utility model relates to a high-speed train rail transit technical field, more specifically the utility model relates to a bogie king pin processing positioner that says so.

Background

The bogie is the most important component system in the rail transit vehicle of the high-speed train, the center pin is an important component part in the bogie system, the center pin sleeve matched with the center pin is an important component part of a traction beam, and the traction beam is used for connecting a traction pull rod. The quality of the center pin directly influences the running performance of the whole train body and the bogie, and the normal running and the safety of the motor train unit. Therefore, the strength and rigidity of the center pin are related to the safety, reliability and comfort of operation, so that the strength and rigidity directly affect the operation quality and economic benefit.

The traditional center pin machining method is complex, the operation difficulty is high, clamping cannot be carried out by using a better method, the use of machining equipment is also limited, firstly, a machining line is drawn on a marking platform of the center pin, a alignment line, a reference line and a contour line are aligned, the bottom of a workpiece is provided with a common center for height adjustment during machining, then, a height gauge is used for manually adjusting and aligning the center pin through the drawn alignment line by using the height gauge, the operation difficulty is high, time is consumed, repeated adjustment is needed, the operation is complex and difficult, and the requirement on the operation level of workers is high.

The workpiece is clamped by the common pressing plate, the traditional clamping mode cannot meet the quality requirement of the center pin, and due to the low clamping precision, the machining quality is poor, the size and the specification are not uniform, the machining precision is low, the efficiency is low, the auxiliary time is long, the operation is complex, and the use performance and the safety of the product are seriously influenced.

Therefore, it is an urgent problem to be solved by those skilled in the art to provide a positioning device for machining a center pin of a bogie with high positioning accuracy.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to provide a bogie king pin processing positioner solves the low problem of bogie king pin processing positioning accuracy among the prior art.

The utility model provides a bogie king pin processing positioner, include:

the top end of the base is a plane and is used for supporting;

the middle part of the top end of the base is connected with the central chuck, three clamping jaws of the central chuck are abutted against a reference circle at the bottom of a central pin, and a guide cone is arranged at the center of the central chuck;

the top end of the base is fixedly provided with three plane supporting blocks with top surfaces in the same plane around the central chuck, and the plane supporting blocks are used for supporting the bottom plane of the central pin;

the top end of the base surrounds the three plane supporting blocks, and the four clamping mechanisms are fixed and used for clamping the edge of the center pin; and

and the base is provided with two angular positioning mechanisms opposite to the end faces of the two sides of the center pin.

According to the above technical scheme, compare with prior art, the utility model provides a bogie king pin processing positioner, the quick guiding orientation of direction awl is passed through to king pin bottom reference circle, then fixed through the three jack catch butt of center chuck, and king pin bottom surface and three plane supporting shoe top butt simultaneously to through two angular positioning mechanism side direction location, it is fixed to compress tightly through clamping mechanism at last, and the location is accurate, and the positioning process is easy to operate simply, and then has improved king pin machining precision and quality.

And each clamping mechanism further comprises a vertical oil cylinder fixed on the base, and an oil cylinder pressing plate is arranged at the output end of each vertical oil cylinder.

Further, each angular positioning mechanism all includes the cylinder base, the cylinder base side is fixed with horizontal hydro-cylinder, horizontal hydro-cylinder output orientation the center pin side, and be connected with the side of center pin side end face butt pushes away the alignment backup pad, side push alignment backup pad terminal surface shape with center pin side end face shape adaptation.

Further, the three plane supporting blocks are arranged outside the central chuck at equal angles.

Furthermore, the base is fixed with three plane supporting blocks and three column-shaped auxiliary supporting blocks which are arranged in a staggered mode.

Further, the base is the I shape, includes fixed plate, support and the bottom plate that connects gradually by bottom to top, bottom plate and fixed plate are rectangular shaped plate, just the bottom plate area is greater than the fixed plate area, the fixed orifices has on the fixed plate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating a state of the center pin mounting device for machining and positioning the center pin of the bogie provided by the present invention;

fig. 2 and fig. 3 are schematic structural diagrams of the positioning device for machining a center pin of a bogie provided by the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The common pressing plate is adopted to clamp the center pin workpiece, so that the current quality requirements of the center pin cannot be met, the machining quality is poor due to low clamping precision, the size and the specification are not uniform, the machining precision is low, the efficiency is low, the auxiliary time is long, the operation is complex, and the use performance and the safety of a product are seriously influenced.

Therefore, the embodiment of the utility model discloses bogie core pin processing positioner is disclosed, refer to fig. 1-3, include: the top end of the base 1 is a plane and is used for supporting;

advantageously, the center chuck is connected to the middle of the top end of the base 1, three jaws 17 of the center chuck are abutted to a reference circle at the bottom of the center pin T, and a guide cone 18 is installed at the center of the center chuck and used for quickly positioning the reference circle at the bottom of the center pin;

the top end of the base 1 is fixed with three

plane supporting blocks

6, 7 and 8 with top surfaces in the same plane around the central chuck, and the three plane supporting blocks are used for supporting the bottom plane of the central pin T;

four

clamping mechanisms

12, 13, 14, 15 are fixed on the top end of the base 1 around the three

plane supporting blocks

6, 7, 8, and are used for clamping the edge of a center pin T; and

two angular positioning mechanisms are arranged on the base 1 opposite to the end faces of the two sides of the center pin T.

The utility model discloses the quick guiding orientation of core pin bottom benchmark circle through the guide cone, then the three jack catch butt through central chuck is fixed, core pin bottom surface and three plane supporting shoe top butt simultaneously to through two angular positioning mechanism side direction location, compress tightly fixedly through clamping mechanism at last, fix a position accurately, the simple easy operation of positioning process, and then improved core pin machining precision and quality.

The utility model discloses an in an embodiment, each

clamping mechanism

12, 13, 14, 15 is all including being fixed in perpendicular hydro-cylinder on the base 1, perpendicular hydro-cylinder output end up, and all install hydro-cylinder clamp plate 16, stretch out and draw back through perpendicular hydro-cylinder output and realize compressing tightly and relaxing of hydro-cylinder clamp plate.

The utility model discloses in another embodiment, each angular positioning mechanism all includes hydro-

cylinder base

3, 3 sides of hydro-cylinder base are fixed with horizontal hydro-

cylinder

4, 4 output end orientations of horizontal hydro-cylinder the kingpin T side, and be connected with the side of kingpin T side end face butt pushes away alignment backup pad 5, side push alignment backup pad 5 end face shape with kingpin T side end face shape adaptation, side push alignment backup pad and kingpin side end face utilize profile shape adaptation to realize automatic alignment and the angle is spacing.

Advantageously, the three

planar support blocks

6, 7, 8 are arranged at equal angles outside the central chuck. Three cylindrical auxiliary supporting

blocks

9, 10 and 11 which are arranged in a staggered manner with the three

plane supporting blocks

6, 7 and 8 are fixed on the base 1, namely one auxiliary supporting block is arranged between two adjacent plane supporting blocks. The three columnar auxiliary supporting

blocks

9, 10 and 11 adopt the existing hydraulic auxiliary supporting structure, and the bottom of the columnar auxiliary supporting block can automatically extend and retract along with the starting of oil pressure to play an auxiliary supporting role.

Advantageously, in each of the above embodiments, the base 1 is i-shaped, so as to improve the supporting strength, and includes a fixing plate, a support and a bottom plate 2 connected in sequence from bottom to top, the bottom plate 2 and the fixing plate are rectangular plates, the area of the bottom plate 2 is larger than that of the fixing plate, and the fixing plate has fixing holes.

When the center pin is machined, firstly, a center pin workpiece is horizontally placed, the workpiece is better guided when being axially placed through the guide cone 18, accurate positioning is accelerated, a reference circle at the bottom of the workpiece is contacted with the clamping jaws 17 of the three-jaw chuck to achieve ideal positioning, the plane supporting block is contacted with the large surface at the bottom of the workpiece to achieve Z-direction positioning of the workpiece, the supporting blocks 5 are aligned through side pushing of the left side and the right side and clamped by the transverse oil cylinders 4, the workpiece is prevented from rotating in the angle direction, the auxiliary supporting of the hydraulic mechanisms of the auxiliary supporting

blocks

9, 10 and 11 is started, the stability during machining is guaranteed, secondly, the vertical oil cylinders are started to complete all clamping actions, the whole installation and clamping process operation step of the center pin is carried out, and finally, the center pin is machined.

The utility model discloses the three jack catch of center chuck and work piece reference circle location have limited the X of work piece to and Y to the degree of freedom. The bottom surface of the workpiece is in Z-direction contact positioning with the three plane supporting blocks, so that the degree of freedom of the workpiece in the Z direction is limited. The transverse oil cylinders 4 and the side-push alignment supporting blocks 5 on the left side and the right side automatically align, so that the degree of freedom of the workpiece in the rotating direction is limited. The positioning device is simple to operate, time-saving and labor-saving, improves the machining efficiency, is accurate in positioning, improves the product precision, and ensures the use performance and safety of products.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. Bogie king pin processing positioner, its characterized in that includes:

the top end of the base (1) is a plane and is used for supporting;

the center chuck is connected to the middle of the top end of the base (1), three clamping jaws (17) of the center chuck are abutted to a reference circle at the bottom of a center pin (T), and a guide cone (18) is installed in the center of the center chuck;

the top end of the base (1) is fixedly provided with three plane supporting blocks (6, 7, 8) with top surfaces in the same plane around the central chuck, and the plane supporting blocks (6, 7, 8) are used for supporting the bottom plane of the central pin (T);

four clamping mechanisms (12, 13, 14, 15) are fixed at the top end of the base (1) around the three plane supporting blocks (6, 7, 8) and used for clamping the edge of a center pin (T); and

two angular positioning mechanisms are arranged on the base (1) relative to the end faces of the two sides of the center pin (T).

2. The machining and positioning device for the center pin of the bogie according to claim 1, wherein each clamping mechanism (12, 13, 14, 15) comprises a vertical cylinder fixed on the base (1), and a cylinder pressure plate (16) is mounted at the output end of each vertical cylinder.

3. The machining and positioning device for the center pin of the bogie according to claim 1, wherein each angular positioning mechanism comprises an oil cylinder base (3), a transverse oil cylinder (4) is fixed on the side surface of the oil cylinder base (3), the output end of the transverse oil cylinder (4) faces the side of the center pin (T), a side pushing and aligning support plate (5) abutted against the side end surface of the center pin (T) is connected to the output end of the transverse oil cylinder (4), and the shape of the end surface of the side pushing and aligning support plate (5) is matched with the shape of the side end surface of the center pin (T).

4. The truck kingpin machining positioning device according to any one of claims 1 to 3, wherein the three planar support blocks (6, 7, 8) are arranged at equal angles outside the centre chuck.

5. The machining and positioning device for the center pin of the bogie according to claim 4, wherein three cylindrical auxiliary supporting blocks (9, 10, 11) which are staggered with three planar supporting blocks (6, 7, 8) are fixed on the base (1).

6. The machining and positioning device for the center pin of the bogie according to any one of claims 1 to 3, wherein the base (1) is I-shaped and comprises a fixing plate, a support and a bottom plate (2) which are sequentially connected from bottom to top, the bottom plate (2) and the fixing plate are rectangular plates, the area of the bottom plate (2) is larger than that of the fixing plate, and the fixing plate is provided with a fixing hole.