Numerical control machining tool for center pin boss for subway

Abstract

The utility model relates to a numerical control machining tool for a center pin boss for a subway, belongs to the technical field of rail transit, and is simple in overall structure, convenient to polish the center pin boss formed by casting, capable of avoiding burrs on the surface of the center pin boss, and capable of improving the machining efficiency compared with the prior art. According to the center pin base polishing and burr removing device, all-directional polishing and burr removing operation can be conveniently conducted on a center pin base formed through casting, then it is guaranteed that the center pin base formed through casting can meet the follow-up use requirement, and the comprehensive practicability is good. The electric-hydraulic push rod is arranged in the base through the connecting groove, and the output end of the electric-hydraulic push rod is fixedly connected with a connecting plate; the storage plate is rotationally connected with the connecting plate through a connecting shaft, and two sets of fixing assemblies used for limiting the center pin base formed through casting are detachably connected to the storage plate; the supporting plate is fixedly connected to the base, two adjusting holes are formed in a supporting column of the supporting plate, and connecting rings are fixedly connected into the adjusting holes.

Description

Technical Field

[0001] The present application relates to the technical field of rail transit, and in particular to a numerical control machining tooling for a center pin seat of a subway. Background Art

[0002] As is well known, rail transit refers to a type of transportation vehicle or transportation system in which the operating vehicles need to run on specific tracks. The most typical rail transit is the railway system composed of traditional trains and standard railways. With the diversified development of train and railway technologies, more and more types of rail transit have emerged, which are not only spread over long-distance land transportation but also widely used in medium- and short-distance urban public transportation.

[0003] At present, the center pin seat is an indispensable part in the subway system. It is used to connect the car body and the bogie, playing the role of fixing and towing the car body. This makes the machining of the center pin seat particularly important. After the existing center pin seat is cast, there will be protrusions on its surface and the surface is rough. Therefore, it is necessary to use machining tooling to polish the surface of the center pin seat. However, the applicant found that when polishing the center pin seat, due to the shape characteristics of the center pin seat, it is easy to cause the machining tooling to be difficult to polish it comprehensively, and it is also necessary to manually polish the rough surface of the center pin seat, which has certain limitations in use. Secondly, due to the instability of manual work, it is difficult to ensure uniform polishing of the center pin seat, which is likely to cause incomplete assembly of the center pin seat during later assembly, and its practicability is insufficient.

[0004] Therefore, in view of the above related technologies, we propose a numerical control machining tooling for a center pin seat of a subway. Utility Model Content

[0005] The purpose of the present utility model is to provide a numerical control machining tooling for a center pin seat of a subway to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present utility model provides the following technical solutions:

[0007] A numerical control machining tooling for a center pin seat of a subway, comprising:

[0008] A base;

[0009] An electro-hydraulic push rod, which is arranged in the base through a connecting groove, and the output end of the electro-hydraulic push rod is fixedly connected with a connecting plate;

[0010] A placing plate, which is rotatably connected with the connecting plate through a connecting shaft, and two groups of fixing components for limiting the center pin seat formed by casting are detachably connected to the placing plate;

[0011] A support plate, which is fixedly connected to the base. There are two adjustment holes opened in the support pillar of the support plate, and a connecting ring is fixedly connected in the adjustment holes.

[0012] Two adjustment columns, which are horizontally slidably connected to the support plate through the connecting ring. One end of the adjustment column is fixedly connected with a mounting plate, and a micro motor is detachably connected to the mounting plate.

[0013] Two grinding brush discs, which are detachably connected to the output shaft of the micro motor.

[0014] A moving component, which is arranged in the base and is used to drive the base to perform corresponding moving operations.

[0015] As a further scheme of the utility model: The fixing component includes two L-shaped positioning plates, and both of the two L-shaped positioning plates are fixedly connected to the placing plate through positioning bolts.

[0016] As a further scheme of the utility model: Anti-slip rubber pads are fixedly connected to the opposite ends of the two L-shaped positioning plates.

[0017] As a further scheme of the utility model: The moving component includes four support pillars, and all of the four support pillars are arranged in the base through mounting grooves. The other ends of the support pillars are detachably connected with self-locking universal wheels.

[0018] As a further scheme of the utility model: An annular handle is fixedly connected to the outer wall of the placing plate through a plurality of connecting rods.

[0019] As a further scheme of the utility model: Rectangular plates are fixedly connected to the ends of the two adjustment columns far away from the mounting seat, and a first handle is fixedly connected to the rectangular plates.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] By setting up a moving component, with the cooperation of multiple struts and self-locking universal wheels, the base is moved to the applicable position. Then, by setting up a fixing component, with the cooperation of two L-shaped positioning plates and positioning bolts, the cast center pin seat is fixed and limited on the storage plate. Then, by starting the micro motor, the output shaft of the micro motor drives the grinding brush disc to rotate. Through the cooperation of the support plate, connecting ring and adjusting column, the mounting plate can move horizontally, so that the grinding brush disc on the output shaft of the micro motor can contact the center pin seat to achieve the purpose of grinding it. Secondly, by starting the electro-hydraulic push rod, under the action of the electro-hydraulic push rod, the height of the center pin seat on the storage plate is adjusted. At the same time, through the cooperation of the set connecting plate and connecting shaft, the center pin seat on the storage plate can rotate circumferentially, so that the grinding brush disc can perform a comprehensive grinding operation on the center pin seat. Its overall structure is relatively simple, which is convenient for grinding the cast center pin seat, avoiding burrs on the surface of the center pin seat. Compared with the existing technology, it is convenient to perform all-round deburring operation on the cast center pin seat, so as to ensure that the cast center pin seat can meet the subsequent use requirements, and the comprehensive practicability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of a three-dimensional partial cross-sectional structure of the overall front view of the present utility model;

[0023] Figure 2 is a schematic diagram of a three-dimensional structure of a partial cross-section of the overall front view of the present utility model;

[0024] Figure 3 is a schematic diagram of a three-dimensional structure of the cooperation among the storage plate, connecting rod, annular handle, etc. of the present utility model;

[0025] Figure 4 is a schematic diagram of a planar structure of the overall front view of the present utility model.

[0026] In the figure: 1, base; 2, electro-hydraulic push rod; 3, connecting plate; 4, storage plate; 5, connecting shaft; 6, support plate; 7, connecting ring; 8, adjusting column; 9, mounting plate; 10, micro motor; 11, grinding brush disc; 12, L-shaped positioning plate; 13, positioning bolt; 14, anti-slip rubber pad; 15, strut; 16, self-locking universal wheel; 17, annular handle; 18, rectangular plate; 19, first handle; 20, connecting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] The following further details the present application in conjunction with the accompanying drawings of the specification.

[0029] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a numerical control machining tooling for a center pin seat used in a subway includes:

[0030] Base 1;

[0031] Electro-hydraulic push rod 2, the electro-hydraulic push rod 2 is arranged in the base 1 through a connecting groove, and the output end of the electro-hydraulic push rod 2 is fixedly connected with a connecting plate 3;

[0032] Placement plate 4, the placement plate 4 is rotatably connected to the connecting plate 3 through a connecting shaft 5, and two fixing components for limiting the cast center pin seat are detachably connected to the placement plate 4;

[0033] Support plate 6, the support plate 6 is fixedly connected to the base 1, two adjustment holes are opened in the support column 15, and a connecting ring 7 is fixedly connected in the adjustment holes;

[0034] Two adjustment columns 8, the adjustment columns 8 are horizontally slidably connected to the support plate 6 through the connecting ring 7, one end of the adjustment column 8 is fixedly connected with a mounting plate 9, and a micro motor 10 is detachably connected to the mounting plate 9;

[0035] Two grinding brush discs 11, the grinding brush discs 11 are detachably connected to the output shaft of the micro motor 10;

[0036] Moving component, the moving component is arranged in the base 1 and is used to drive the base 1 to perform corresponding moving operations.

[0037] This numerical control machining tooling for the center pin seat of the subway, when in use, can move its base 1 to the applicable position by setting the moving component. Then, by setting the fixing component, the cast center pin seat can be fixed and limited on the placing plate 4 under the action of the fixing component. At the same time, by starting the micro-motor 10, the output shaft of the micro-motor 10 drives the grinding brush disc 11 to rotate. Then, through the mutual cooperation of the support plate 6, the connecting ring 7 and the adjusting column 8, the mounting plate 9 can drive the micro-motor 10 to move horizontally, so that the grinding brush disc 11 on the output shaft of the micro-motor 10 contacts the center pin seat on the placing plate 4, and thus the center pin seat is ground by the rotating grinding brush disc 11. Then, by starting the electro-hydraulic push rod 2, the height of the center pin seat on the placing plate 4 is adjusted under the action of the electro-hydraulic push rod 2. At the same time, through the mutual cooperation of the connecting plate 3 and the connecting shaft 5 provided, the center pin seat on the placing plate 4 can rotate circumferentially, so that the grinding brush disc 11 can perform a comprehensive grinding operation on the center pin seat.

[0038] In Figures 1 - 3 : The fixing component includes two L-shaped positioning plates 12. Both of the two L-shaped positioning plates 12 are fixedly connected to the placing plate 4 through positioning bolts 13. Anti-slip rubber pads 14 are fixedly connected to the opposite ends of the two L-shaped positioning plates 12.

[0039] This numerical control machining tooling for the center pin seat of the subway, through the setting of this structure, is convenient to fix and limit center pin seats of different specifications on the placing plate 4 under the mutual cooperation of the L-shaped positioning plate 12 and the positioning bolt 13, avoiding the slipping phenomenon during the grinding operation. Secondly, the anti-slip rubber pad 14 can be set to increase the contact friction between the L-shaped positioning plate 12 and the center pin seat, ensuring that it can be stably limited on the placing plate 4.

[0040] In Figures 1 - 4 : The moving component includes four support columns 15. All four support columns 15 are arranged in the base 1 through installation grooves. The other ends of the support columns 15 are detachably connected with self-locking universal wheels 16. An annular handle 17 for driving the placing plate 4 to rotate is fixedly connected to the outer wall of the placing plate 4 through a plurality of connecting rods 20. Rectangular plates 18 are fixedly connected to the ends of the two adjusting columns 8 far away from the mounting seat. A first handle 19 for driving the adjusting column 8 to move is fixedly connected to the rectangular plates 18.

[0041] In this embodiment, the electro-hydraulic push rod 2 is a well-known device for those skilled in the art that can be directly purchased on the market, and can be customized or selected according to actual needs. Here, we only use it without making improvements to its structure and function, so we will not elaborate on it in detail here. The electro-hydraulic push rod 2 is provided with a control switch matching it, and the installation position of the control switch is selected according to actual use requirements to facilitate operation and control by operators. Its technology is already very mature and can be realized.

[0042] The implementation principle of a numerical control machining tooling for a center pin seat used in a subway in an embodiment of this application is as follows: First, through the mutual cooperation of a plurality of struts 15 and self-locking universal wheels 16, the base 1 is moved to a suitable position, and then the self-locking universal wheels 16 are locked to fix and limit the base 1 to prevent it from slipping after being put into work. Then, through the mutual cooperation of two L-shaped positioning plates 12 and positioning bolts 13, the cast center pin seat to be polished is fixed and limited on the placing plate 4. Then, by starting the micro motor 10, the output shaft of the micro motor 10 drives the grinding brush disc 11 to rotate. Then, through the mutual cooperation of the first handle 19, rectangular plate 18, support plate 6, connecting ring 7 and adjusting column 8, the mounting plate 9 drives the micro motor 10 to move, so that the grinding brush disc 11 on the output shaft of the micro motor 10 can contact the center pin seat. Then, the purpose of grinding the center pin seat is achieved by the rotating grinding brush disc 11. At the same time, by starting the electro-hydraulic push rod 2, under the action of the electro-hydraulic push rod 2, the height of the center pin seat on the placing plate 4 is adjusted, and through the mutual cooperation of the connecting plate 3 and the connecting shaft 5 provided, the center pin seat on the placing plate 4 can rotate circumferentially, so that the grinding brush disc 11 can perform a comprehensive grinding operation on the center pin seat.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A numerical control machining tooling for the center pin seat of a subway, characterized in that, Including: Base (1); Electro-hydraulic push rod (2), which is arranged in the base (1) through a connecting groove, and a connecting plate (3) is fixedly connected to the output end of the electro-hydraulic push rod (2); Placement plate (4), which is rotatably connected to the connecting plate (3) through a connecting shaft (5), and two sets of fixing components for limiting the cast center pin seat are detachably connected to the placement plate (4); Support plate (6), which is fixedly connected to the base (1), two adjusting holes are provided in the support column (15), and a connecting ring (7) is fixedly connected in the adjusting holes; Two adjusting columns (8), which are horizontally slidably connected to the support plate (6) through the connecting ring (7), one end of the adjusting column (8) is fixedly connected with a mounting plate (9), and a micro motor (10) is detachably connected to the mounting plate (9); Two grinding brush discs (11), which are detachably connected to the output shaft of the micro motor (10); Moving component, which is arranged in the base (1) and is used to drive the base (1) to perform corresponding moving operations.

2. The numerical control machining tooling for the center pin seat used in the subway according to claim 1, wherein: The fixing component includes two L-shaped positioning plates (12), and both of the two L-shaped positioning plates (12) are fixedly connected to the placement plate (4) through positioning bolts (13).

3. A numerical control machining tooling for the center pin seat of a subway, characterized in that: Anti-slip rubber pads (14) are fixedly connected to the opposite ends of the two L-shaped positioning plates (12).

4. A numerical control machining tooling for the center pin seat of a subway, characterized in that: The moving component includes four support columns (15), and all four support columns (15) are arranged in the base (1) through mounting grooves, and the other ends of the support columns (15) are detachably connected with self-locking universal wheels (16).

5. A numerical control machining tooling for the center pin seat of a subway, characterized in that: An annular handle (17) is fixedly connected to the outer wall of the placement plate (4) through a plurality of connecting rods (20).

6. The numerical control machining tooling for the center pin seat used in subway according to claim 1, characterized in that: Rectangular plates (18) are fixedly connected to the ends of the two adjusting columns (8) far away from the mounting seat, and a first handle (19) is fixedly connected to the rectangular plates (18).

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