Railway vehicle end chassis cutting device

Abstract

The utility model relates to the technical field of cutting machining, and provides a railway vehicle end chassis cutting device which comprises a machine tool, an auxiliary mechanism used for fixing materials on the machine tool and a laser cutter used for cutting the fixed materials. A supporting piece is fixed to the output end of the air cylinder. When the extrusion part is pushed to move towards the positioning part by overcoming the elastic force of the second spring, the positioning part can overcome the elastic force of the first spring to contract towards the fixed disc under the extrusion of the arc-shaped chamfer of the pressing rod on the inclined surface of the wedge-shaped block, so that the second annular tooth surface on the surface of the pressing disc is separated from the first annular tooth surface; the abutting plate can be freely rotated when the positioning effect of the positioning piece disappears, then the fixing angle is adjusted according to the material appearance structure manufactured by the railway vehicle end chassis, and the problem that in the prior art, a bolt positioning mode is inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting processing, and particularly to a cutting device for the end underframe of a rail vehicle. Background Art

[0002] Rail vehicles are common means of transportation nowadays. Most of their end underframes are assembled from sheet materials. Due to the large size of the sheet materials, they are generally cut by laser cutting.

[0003] After retrieval, the utility model patent with the publication number CN218855904U discloses a numerical control laser cutting machine for the processing of rail vehicle underframe sheet materials, which includes a cutting table and an auxiliary mechanism. A cutting mechanism is arranged above the cutting table. The auxiliary mechanism includes a pressing plate and a positioning rod. The top and bottom ends of the positioning rod are fixedly connected with rotating shafts. Two connecting plates are fixedly connected to the front of the pressing plate. Rotating holes are opened at the top ends of the two connecting plates. The outer walls of the two rotating shafts are respectively rotatably connected with the inner walls of the two rotating holes. By using the settings of the pressing plate, positioning rod, connecting plates, rotating holes and rotating shafts, the pressing plate can rotate around the rotating shaft, so that the pressing plate can be placed in various ways such as horizontal and inclined, and can be applicable to various alignment methods during the processing of sheet materials, thus improving its applicability.

[0004] However, the above cutting machine still has the following problems: The pressing plate in the above technology is fixed by manually screwing bolts against the positioning column. Due to the large difference in manual screwing force, when the screwing force is small, the fixing effect on the pressing plate is poor. When the manual screwing force is large, although the fixing effect on the pressing plate is improved, it is not convenient for subsequent loosening adjustment, thus affecting the use. Summary of the Utility Model

[0005] The utility model provides a cutting device for the end underframe of a rail vehicle, which solves the problem of inconvenience in the existing bolt positioning method.

[0006] The technical solution of the utility model is as follows: A cutting device for the end underframe of a rail vehicle includes a machine tool, an auxiliary mechanism for fixing materials on the machine tool, and a laser cutter for cutting the fixed materials. The auxiliary mechanism includes a cylinder fixed on the machine tool. A support member is fixed to the output end of the cylinder. The support member includes a push rod and a pin shaft vertically distributed with the push rod.

[0007] Two rotatable pressing plates, a first spring, and a positioning member for fixing the pressing plate by the elastic force of the first spring are arranged on the pin shaft.

[0008] An extrusion member for adjusting the angle of the pressing plate by compressing the positioning member is arranged on the push rod. The extrusion member is elastically connected to the support member through a second spring.

[0009] Preferably, a fixing plate is fixed in the middle of the pin shaft, the fixing plate is fixed at the end of the push rod, limiting plates are fixed on the outer sides of both ends of the pin shaft, a strip-shaped groove is formed in the pin shaft between the limiting plates and the fixing plate, and a stop plate is fixed on the push rod.

[0010] Preferably, an ear plate is fixed at one end of the pressing plate, a shaft hole for rotatably connecting with the limiting plate on the pin shaft is formed in the ear plate, and a first annular tooth surface distributed annularly around the shaft hole is arranged at the bottom of the ear plate.

[0011] Preferably, the positioning member includes a shaft sleeve, the shaft sleeve is slidably sleeved outside the pin shaft, a pressing plate is fixed at the top of the shaft sleeve, a second annular tooth surface capable of engaging with the first annular tooth surface is arranged on the top surface of the pressing plate, a notch is formed in the shaft sleeve, and a wedge block slidably limited in the strip-shaped groove is fixed in the notch.

[0012] Preferably, the squeezing member includes a sliding sleeve, the sliding sleeve is slidably sleeved outside the push rod, a pushing plate is fixed at one end of the sliding sleeve, and a pair of pressing rods limited in the notch are fixed on the surface of the pushing plate.

[0013] Preferably, an arc chamfer is arranged at the contact end of the pressing rod with the wedge block.

[0014] Preferably, the first spring is sleeved outside the pin shaft, one end of the first spring is fixed to the pressing plate, and the other end of the first spring is fixed to the fixing plate.

[0015] Preferably, the second spring is sleeved outside the push rod, one end of the second spring is fixed to the pushing plate, and the other end of the second spring is fixed to the stop plate.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. When the present utility model pushes the squeezing member towards the positioning member by overcoming the elastic force of the second spring, under the extrusion of the arc chamfer of the pressing rod on the inclined surface of the wedge block, the positioning member can overcome the elastic force of the first spring and contract towards the fixing plate, so that the second annular tooth surface on the surface of the pressing plate is disengaged from the first annular tooth surface, and the positioning effect of the pressing plate on the positioning member disappears, and the pressing plate can rotate freely, and then the fixing angle can be adjusted according to the material shape structure of the end underframe of the rail vehicle, solving the problem of inconvenience in the existing positioning method by bolts.

[0018] 2. After the adjustment of the present utility model is completed and the pressing member is released, under the elastic force of the second spring, the pressing member can be pulled to move away from the positioning member on the push rod, and the pressing rod gradually moves outwards from the notch. The arc chamfer of the pressing rod gradually reduces the pressure on the inclined surface of the wedge block. At this time, under the elastic force of the first spring, the positioning member gradually expands, so that the second annular tooth surface on the surface of the pressing plate engages with the first annular tooth surface. Compared with the prior art, the present utility model can realize the automatic positioning of the positioning member for the two abutting plates without manual positioning, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0020] Figure 1 FIG. is a schematic structural diagram of a cutting device for the end underframe of a rail vehicle proposed by the present utility model;

[0021] Figure 2 FIG. is an exploded structural diagram of the auxiliary mechanism proposed by the present utility model;

[0022] Figure 3 FIG. is a schematic structural diagram of the support member proposed by the present utility model;

[0023] Figure 4 FIG. is a schematic partial structural diagram of the abutting plate proposed by the present utility model;

[0024] Figure 5 FIG. is a schematic structural diagram of the positioning member proposed by the present utility model;

[0025] Figure 6 FIG. is a schematic sectional structural diagram of the positioning member proposed by the present utility model;

[0026] Figure 7 FIG. is a schematic structural diagram of the pressing member proposed by the present utility model;

[0027] Figure 8 FIG. is a schematic side view structural diagram of the pressing member proposed by the present utility model;

[0028] In the figure: 1, machine tool; 2, laser cutter; 3, auxiliary mechanism; 31, cylinder; 32, support member; 321, push rod; 322, fixed disk; 323, limit disk; 324, strip-shaped groove; 325, stop disk; 326, pin shaft; 33, abutting plate; 331, ear plate; 332, shaft hole; 333, first annular tooth surface; 34, positioning member; 341, bushing; 342, pressing plate; 343, second annular tooth surface; 344, notch; 345, wedge block; 35, first spring; 36, pressing member; 361, sliding sleeve; 362, pushing disk; 363, pressing rod; 364, arc chamfer; 37, second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following will combine with the embodiments of the present invention to clearly and completely describe the technical solutions 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 making creative efforts fall within the scope of protection of the present invention.

[0030] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution: an end underframe cutting device for a rail vehicle, including a machine tool 1, an auxiliary mechanism 3 for fixing materials on the machine tool 1, and a laser cutter 2 for cutting the fixed materials. The auxiliary mechanism 3 includes a cylinder 31 fixed on the machine tool 1, and a support member 32 is fixed to the output end of the cylinder 31. As Figure 3 shown, the support member 32 includes a push rod 321 and a pin shaft 326 vertically distributed with the push rod 321. Two rotatable abutting plates 33, a first spring 35, and a positioning member 34 for fixing the abutting plates 33 by the elastic force of the first spring 35 are arranged on the pin shaft 326. An extrusion member 36 for adjusting the angle of the abutting plates 33 by compressing the positioning member 34 is arranged on the push rod 321, and the extrusion member 36 is elastically connected to the support member 32 through a second spring 37.

[0031] Please refer to Figure 2 and Figure 3 , a fixing disk 322 is fixed to the middle of the pin shaft 326, the fixing disk 322 is fixed to the end of the push rod 321, limiting disks 323 are fixed to the outer sides of both ends of the pin shaft 326, and a strip-shaped groove 324 is formed on the pin shaft 326 between the limiting disks 323 and the fixing disk 322 for guiding and limiting the movement of the positioning member 34 to prevent the positioning member 34 from rotating outside the pin shaft 326. A stop disk 325 is fixed on the push rod 321 for stopping the movement of the extrusion member 36.

[0032] Please refer to Figure 2 and Figure 4 , an ear plate 331 is fixed to one end of the abutting plate 33, a shaft hole 332 rotatably connected to the limiting disk 323 on the pin shaft 326 is formed in the ear plate 331, so that the abutting plate 33 can rotate around the pin shaft 326. A first annular tooth surface 333 distributed annularly around the shaft hole 332 is arranged at the bottom of the ear plate 331 for realizing the fixation of the abutting plate 33 in cooperation with the positioning member 34.

[0033] Please refer to Figure 2 , Figure 5 and Figure 6, the positioning member 34 includes a bushing 341 which is slidably sleeved outside the pin shaft 326. A pressure plate 342 is fixed to the top of the bushing 341. A second annular tooth surface 343 capable of engaging with the first annular tooth surface 333 is provided on the top surface of the pressure plate 342. A notch 344 is formed in the bushing 341, and a wedge block 345 which is slidably limited in the strip-shaped groove 324 is fixed in the notch 344. A first spring 35 is sleeved outside the pin shaft 326. One end of the first spring 35 is fixed to the pressure plate 342, and the other end of the first spring 35 is fixed to the fixed plate 322. By overcoming the elastic force of the second spring 37, the extrusion member 36 can be pushed to move towards the positioning member 34. Under the extrusion of the arc chamfer 364 of the pressure rod 363 on the inclined surface of the wedge block 345, the positioning member 34 can overcome the elastic force of the first spring 35 and contract towards the fixed plate 322, so that the second annular tooth surface 343 on the surface of the pressure plate 342 is disengaged from the first annular tooth surface 333. When the positioning effect of the positioning member 34 on the backing plate 33 disappears, the backing plate 33 can rotate freely.

[0034] Please refer to Figure 2 , Figure 7 and Figure 8 , the extrusion member 36 includes a sliding sleeve 361 which is slidably sleeved outside the push rod 321. A push plate 362 is fixed to one end of the sliding sleeve 361. A pair of pressure rods 363 which are limited in the notch 344 are fixed to the surface of the push plate 362. An arc chamfer 364 is provided at the contact end of the pressure rod 363 with the wedge block 345. A second spring 37 is sleeved outside the push rod 321. One end of the second spring 37 is fixed to the push plate 362, and the other end of the second spring 37 is fixed to the stop plate 325. When the extrusion member 36 is released, under the action of the elastic force of the second spring 37, the extrusion member 36 is pulled to move away from the positioning member 34 on the push rod 321. The pressure rod 363 gradually moves out of the notch 344, and the pressure of the arc chamfer 364 of the pressure rod 363 on the inclined surface of the wedge block 345 gradually decreases. At this time, the positioning member 34 is gradually expanded under the elastic force of the first spring 35, so that the second annular tooth surface 343 on the surface of the pressure plate 342 engages with the first annular tooth surface 333.

[0035] The working principle and usage process of the present utility model are as follows: By overcoming the elastic force of the second spring 37, the extrusion member 36 is pushed to move towards the positioning member 34. Under the extrusion of the arc chamfer 364 of the pressure rod 363 on the inclined surface of the wedge block 345, the positioning member 34 can overcome the elastic force of the first spring 35 and contract towards the fixed plate 322, so that the second annular tooth surface 343 on the surface of the pressure plate 342 is disengaged from the first annular tooth surface 333. When the positioning effect of the positioning member 34 on the backing plate 33 disappears, the backing plate 33 can rotate freely, and then the fixing angle can be adjusted according to the material shape structure of the end underframe of the rail vehicle.

[0036] After the adjustment is completed, release the pressing member 36. Under the elastic force of the second spring 37, the pressing member 36 is pulled to move away from the positioning member 34 on the push rod 321. The pressing rod 363 gradually moves outwards from the notch 344, and the pressure of the arc chamfer 364 of the pressing rod 363 on the inclined surface of the wedge block 345 gradually decreases. At this time, the positioning member 34 is gradually expanded under the elastic force of the first spring 35, so that the second annular tooth surface 343 on the surface of the pressure plate 342 engages with the first annular tooth surface 333, realizing the automatic positioning of the positioning member 34 for the two abutting plates 33.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An end underframe cutting device for an orbital vehicle, comprising a machine tool (1), an auxiliary mechanism (3) for fixing materials on the machine tool (1), and a laser cutter (2) for cutting the fixed materials, characterized in that, The auxiliary mechanism (3) includes a cylinder (31) fixed to the machine tool (1). A support member (32) is fixed to the output end of the cylinder (31). The support member (32) includes a push rod (321) and a pin shaft (326) vertically distributed with respect to the push rod (321). Two rotatable pressing plates (33), a first spring (35), and a positioning member (34) for fixing the pressing plates (33) by the elastic force of the first spring (35) are provided on the pin shaft (326). An extrusion member (36) for compressing the positioning member (34) to adjust the angle of the pressing plates (33) is provided on the push rod (321). The extrusion member (36) is elastically connected to the support member (32) by a second spring (37).

2. The cutting device for the end underframe of a rail vehicle according to claim 1, characterized in that A fixed disk (322) is fixed to the middle of the pin shaft (326). The fixed disk (322) is fixed to the end of the push rod (321). Limiting disks (323) are fixed to the outer sides of both ends of the pin shaft (326). A strip-shaped groove (324) is formed in the pin shaft (326) between the limiting disks (323) and the fixed disk (322). A stop disk (325) is fixed to the push rod (321).

3. The cutting device for the end underframe of a rail vehicle according to claim 2, characterized in that, An ear plate (331) is fixed to one end of the pressing plate (33). A shaft hole (332) rotatably connected to the limiting disk (323) on the pin shaft (326) is formed in the ear plate (331). A first annular tooth surface (333) distributed annularly around the shaft hole (332) is provided at the bottom of the ear plate (331).

4. The cutting device for the end underframe of a rail vehicle according to claim 3, characterized in that, The positioning member (34) includes a bushing (341). The bushing (341) is slidably sleeved outside the pin shaft (326). A pressing disk (342) is fixed to the top of the bushing (341). A second annular tooth surface (343) capable of engaging with the first annular tooth surface (333) is provided on the top surface of the pressing disk (342). A notch (344) is formed in the bushing (341). A wedge block (345) slidably limited in the strip-shaped groove (324) is fixed in the notch (344).

5. The cutting device for the end underframe of a rail vehicle according to claim 4, characterized in that, The extrusion member (36) includes a sliding sleeve (361). The sliding sleeve (361) is slidably sleeved outside the push rod (321). A push disk (362) is fixed to one end of the sliding sleeve (361). A pair of pressing rods (363) limited in the notch (344) are fixed to the surface of the push disk (362).

6. The cutting device for the end underframe of a rail vehicle according to claim 5, characterized in that An arc chamfer (364) is provided at the contact end of the pressing rod (363) with the wedge block (345).

7. The cutting device for the end underframe of a rail vehicle according to claim 4, characterized in that The first spring (35) is sleeved outside the pin shaft (326). One end of the first spring (35) is fixed to the pressing disk (342), and the other end of the first spring (35) is fixed to the fixed disk (322).

8. The cutting device for the end underframe of a rail vehicle according to claim 5, characterized in that The second spring (37) is sleeved outside the push rod (321). One end of the second spring (37) is fixed to the push disk (362), and the other end of the second spring (37) is fixed to the stop disk (325).

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