Railway vehicle axle box body machining and positioning tool and machining and positioning method

Abstract

The railway vehicle axle box body machining and positioning tool comprises a base, a workbench is detachably arranged above the base, a first limiting part comprises a first sub-limiting part and a first lifting part, the first lifting part moves in the first direction of the workbench, the first sub-limiting part is arranged on the first lifting part, and the first sub-limiting part moves in the second direction of the workbench; the first lifting part drives the first sub-limiting part to move in the height direction of the workbench, the first sub-limiting part A limits displacement of the axle box body in the height direction, the at least two first sub-limiting parts B are oppositely arranged in the second direction of the workbench so as to limit displacement of the axle box body in the second direction, and the second limiting part comprises a second sub-limiting part and a second lifting part. The second sub-limiting parts are arranged on the second lifting part, the second lifting part drives the second sub-limiting parts to move in the height direction of the workbench, and the at least two second limiting parts are oppositely arranged in the first direction of the workbench so as to limit displacement of the axle box body in the first direction. The tool is high in applicability, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicle machining tooling, and in particular to a rail vehicle axle box machining positioning tooling and a machining positioning method. Background Art

[0002] In railway locomotives and vehicles, the part that is sleeved on the axle neck and connects the wheelset and the bogie frame or the body of a two-axle vehicle is called the axle box. Its function is to transfer the weight and load of the vehicle body to the wheelset, lubricate the axle neck, reduce friction, and reduce running resistance. There are many types of axle boxes for rail vehicles, and their structure mainly includes a bearing support and a spring seat, which are used to install bearings and damping springs respectively.

[0003] At present, when processing the axle box, the ordinary positioning tooling is not adjustable enough and is not easy to adapt. In addition, when processing different positions of the axle box, it is necessary to adjust the installation method of the axle box, so that different positioning tooling is often required when the axle box is processed in multiple stations, which not only increases the tooling cost, but also is not conducive to improving production efficiency.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In response to the problems pointed out in the background technology, the present invention proposes a rail vehicle axle box processing and positioning tooling and a processing and positioning method, which can be adapted to various types of axle boxes and can adapt to different installation methods of axle boxes. It has strong applicability, is easy to adjust, and improves production efficiency.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: In some embodiments, a rail vehicle axle box machining and positioning tool is provided, comprising: Base; A workbench, detachably arranged above the base, the workbench being configured to place the shaft box body to be processed; The first limiting part comprises a first sub-limiting part and a first lifting part, the first lifting part is arranged on the workbench, the first lifting part is configured to move along the first direction of the workbench, the first sub-limiting part is arranged on the first lifting part, the first lifting part is further configured to drive the first sub-limiting part to move along the height direction of the workbench, the first sub-limiting part comprises a first sub-limiting part A and a first sub-limiting part B, the first sub-limiting part A is configured to move along the height direction of the workbench to limit the displacement of the shaft box body along the height direction, at least two of the first sub-limiting parts B are arranged relatively along the second direction of the workbench, and the at least two first sub-limiting parts B arranged relatively are configured to limit the displacement of the shaft box body along the second direction of the workbench; The second limiting portion includes a second sub-limiting portion and a second lifting portion, the second sub-limiting portion is arranged on the second lifting portion, the second lifting portion is arranged on the workbench, the second lifting portion is configured to drive the second sub-limiting portion to move along the height direction of the workbench, at least two of the second limiting portions are arranged relatively along the first direction of the workbench, and the at least two second limiting portions arranged relatively are configured to limit the displacement of the shaft box body along the first direction of the workbench.

[0007] In some embodiments, the first sub-limiting portion B includes a first threaded rod and a first threaded sleeve, the first threaded rod extends along the second direction of the workbench, the first threaded sleeve is sleeved on the first threaded rod, and the first threaded sleeve is arranged at the power output end of the first lifting portion; The first sub-limiting portion A comprises a second threaded rod and a second threaded sleeve, wherein the second threaded rod extends in the height direction of the workbench, the second threaded sleeve is sleeved on the second threaded rod, and the second threaded sleeve is fixedly arranged at the end of the first threaded rod; The second threaded sleeve is provided with a first abutment portion, and the first abutment portion is configured to abut against the shaft box to limit the displacement of the shaft box along the second direction of the workbench; A second abutting portion is disposed at the bottom of the second threaded rod, and the second abutting portion is configured to abut against the shaft box to limit the displacement of the shaft box along the height direction of the workbench.

[0008] In some embodiments, the workbench is provided with a first opening, and the first opening extends along a first direction of the workbench; A first mounting portion is disposed at the bottom of the first lifting portion. The first mounting portion is disposed at the first opening and is configured to move along a length direction of the first opening.

[0009] In some embodiments, a first guide rail is disposed on the first mounting portion, and the first guide rail extends along the height direction of the workbench; The first threaded sleeve is provided with a second mounting portion, the second mounting portion is provided with a first guide portion, and the first guide portion is configured to move along a height direction of the first guide rail.

[0010] In some embodiments, the second sub-limiting portion includes a third abutment portion and a connecting portion, the connecting portion is arranged at the power output end of the second lifting portion, the third abutment portion extends along the second direction of the workbench, the connecting portion is arranged on the third abutment portion and its position along the length direction of the third abutment portion is adjustable, and the third abutment portion is configured to abut against the axle box body.

[0011] In some embodiments, the workbench includes a first sub-workbench and a second sub-workbench, the first sub-workbench is arranged above the second sub-workbench, an installation space is formed between the first sub-workbench and the second sub-workbench, the first sub-workbench is configured to place the shaft box, the second sub-workbench is configured to be detachably connected to the base, and a second opening is arranged on the first sub-workbench, and the second opening extends along the second direction of the workbench; The positioning tool also includes an adjusting part, which is arranged in the installation space, connected to the second lifting part, and the second lifting part passes through the second opening. The adjusting part is configured to drive the second lifting part to move along the length direction of the second opening.

[0012] In some embodiments, the adjustment part includes a first mounting groove, the first mounting groove is fixedly arranged on the second sub-workbench, a screw rod is arranged in the first mounting groove, a screw rod seat is arranged on the screw rod, the screw rod seat is connected to the second lifting part, and the screw rod seat is slidably connected to the first mounting groove.

[0013] In some embodiments, a second mounting groove is provided on the base, a lock hole is provided on the inner wall of the second mounting groove, an air cavity and a ventilation pipe are provided in the base, one end of the ventilation pipe is connected to the air cavity, the other end of the ventilation pipe is connected to the pressurized gas, a piston is provided in the air cavity, and a locking rod is provided at one end of the piston; An extension portion is provided at the bottom of the workbench, and the extension portion is arranged in the second mounting groove. A through hole is provided on the extension portion, and the locking rod is arranged in the through hole. The locking rod is configured to extend into the locking hole under the push of the piston to limit the extension portion in the second mounting groove.

[0014] In some embodiments, the positioning tool comprises one base and a plurality of workbenches, and any of the workbenches is provided with the first limiting portion and the second limiting portion; Before the workbench is installed on the base, the shaft box is installed on the workbench, and the shaft box is limited by the first limiting part and the second limiting part.

[0015] In some embodiments, a method for machining and positioning an axle box of a rail vehicle is provided, using the positioning tool as described above, wherein the positioning tool comprises one base and a plurality of workbenches, and any of the workbenches is provided with the first limiting portion and the second limiting portion; The positioning method comprises: Before the workbench is mounted on the base, the shaft box is mounted on the workbench, and the shaft box is limited by the first limiting part and the second limiting part; The workbench with the shaft box installed is installed on the base. When one shaft box is processed on one of the workbenches, the other shaft box to be processed is positioned and installed on the other workbench that is not installed on the base.

[0016] Compared with the prior art, the advantages and positive effects of the present invention are: In the positioning tool disclosed in the present application, the workbench and the base can be quickly disassembled and assembled, and the shaft box body can be positioned and installed on the workbench outside the processing area, thereby improving production efficiency.

[0017] The limiting structure on the positioning tool disclosed in the present application can reliably limit different types of axle boxes, can adapt to different installation methods of the axle boxes, and has strong applicability. The limiting structure includes a first limiting portion and a second limiting portion, the first limiting portion and the second limiting portion limit the axle box from different directions, and the positions of the first limiting portion and the second limiting portion can be adjusted, thereby providing a multi-directional clamping function, being able to adapt to different installation methods of the axle box, and adapting to the clamping and positioning requirements of various models of axle boxes.

[0018] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 is a structural diagram of a positioning tool according to some embodiments; Figure 2 is another structural diagram of a positioning tool according to some embodiments; Figure 3 is an exploded view of a positioning tool according to some embodiments; Figure 4 is a side view of a positioning tool according to some embodiments; Figure 5 is a structural diagram of a first limiting portion according to some embodiments; Figure 6 is a structural diagram of a second limiting portion and an adjusting portion according to some embodiments; Figure 7 is a structural diagram of a workbench according to some embodiments; Figure 8 is another structural diagram of a workbench according to some embodiments; Fig. 9 is a structural diagram of a base according to some embodiments; Fig.10 is a cross-sectional view of a base and a workbench according to some embodiments; Fig.11 is a structural diagram of an axle box according to some embodiments; Reference numerals: 100, base; 110, second mounting groove; 120, lock hole; 130, air cavity; 140, ventilation duct; 141, first sub-ventilation duct; 142, second sub-ventilation duct; 150, piston; 160, lock rod; 170, second positioning portion; 180, mounting hole; 200, workbench; 210, first sub-workbench; 220, second sub-workbench; 221, extension portion; 222, first positioning portion; 223, through hole; 230, installation space; 240, first opening; 250, second opening; 300, first limiting part; 310, first lifting part; 320, first sub-limiting part; 3211, second threaded rod; 3212, second threaded sleeve; 3221, first threaded rod; 3222, first threaded sleeve; 331, first abutting part; 332, second abutting part; 340, first mounting part; 341, bolt; 350, first guide rail; 360, second mounting part; 361, first guide part; 400, second limiting portion; 410, second lifting portion; 420, second sub-limiting portion; 421, third abutting portion; 422, connecting portion; 423, bolt hole; 500, adjustment part; 510, first mounting groove; 520, screw rod; 530, screw rod seat; 540, guide rod; 550, adjustment operation part; 600, axle box body; 610, bearing bracket; 620, spring seat. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0024] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0027] In some embodiments of the present disclosure, a machining and positioning tool for a railway vehicle axle box is provided. Figure 2 A structural diagram of a positioning tool. Figure 3 An exploded view of the positioning tooling. Figure 1 A structural diagram of the shaft box 600 being installed on the positioning tooling.

[0028] The positioning tool comprises a base 100, Fig. 9 1 is a structural diagram of the base 100. The base 100 is provided with a plurality of mounting holes 180, which are spaced apart near the sides of the base 100, and bolts are passed through the mounting holes to fix the base 100 to the mounting base (not shown) to achieve fixed installation of the positioning tool.

[0029] The positioning tooling includes a workbench 200, Figure 7 is a structural diagram of the workbench 200 viewed from the top side, Figure 8 1 is a structural diagram of the workbench 200 observed from the bottom side. The workbench 200 is detachably arranged above the base 100, and the workbench 200 is configured to place the shaft box 600 to be processed.

[0030] The positioning tooling includes a limiting structure, which is disposed on the workbench 200. The limiting structure is configured to limit and fix the shaft box 600 to the workbench 200, so as to process the shaft box 600 on the workbench 200.

[0031] Fig.11 6 is a structural diagram of the shaft housing 600. The shaft housing 600 includes a bearing support 610 and a spring seat 620. The bearing support 610 is configured to install a bearing, and the spring seat 620 is configured to install a shock-absorbing spring. Fig.11 Shown is an axle housing 600 with dual spring seats.

[0032] The limiting structure on the positioning tool of this embodiment can reliably limit different types of axle boxes, can adapt to different installation methods of the axle boxes, and has strong applicability.

[0033] In some embodiments, the positioning tool includes a base 100 and a plurality of workbenches 200. Any workbench 200 is provided with a limiting structure for limiting the shaft box 600.

[0034] Before the workbench 200 is installed on the base 100 , the shaft box 600 is installed on the workbench 200 , and the shaft box 600 is limited by the limiting structure. Then the workbench 200 with the shaft box 600 installed is installed on the base 100 .

[0035] When one shaft box 600 is being processed on one of the workbenches 200 , another shaft box 600 to be processed is positioned and installed on another workbench 200 that is not installed on the base 100 .

[0036] In other words, while one axle box (referred to as the first axle box) is being processed on one workbench (referred to as the first workbench), another axle box (referred to as the second axle box) is being positioned and installed on another workbench (referred to as the second workbench). When the processing of the first axle box is completed, the first axle box and the first workbench are removed from the base as a whole, and then the second axle box and the second workbench are installed as a whole on the base 100. Multiple workbenches 200 are recycled to improve production efficiency.

[0037] In the positioning tool of this embodiment, the base 100 and the workbench 200 are detachably connected, and the shaft box body 600 is positioned and installed on the workbench 200 outside the processing area to improve production efficiency.

[0038] In some embodiments, reference Fig. 9 A second mounting groove 110 is provided on the base 100 , the top of the second mounting groove 110 is open, and the second mounting groove 110 extends along a second direction of the base 100 , for example, the second mounting groove 110 extends along a width direction of the base 100 .

[0039] Reference Fig. 9 and Fig.10A lock hole 120 is provided on the inner wall of the second mounting groove 110. An air cavity 130 and a ventilation pipe 140 are provided in the base 100. One end of the ventilation pipe 140 is connected to the air cavity 130, and the other end of the ventilation pipe 140 is connected to the pressurized gas. A piston 150 is provided in the air cavity 130, and a locking rod 160 is provided at one end of the piston 150.

[0040] Reference Figure 8 and Fig.10 An extension portion 221 is disposed at the bottom of the workbench 200 , and the extension portion 221 extends along a second direction of the workbench 200 , for example, the extension portion 221 extends along a width direction of the workbench 200 .

[0041] The extension portion 221 is disposed in the second installation slot 110, a through hole 223 is disposed on the extension portion 221, and the locking rod 160 is disposed in the through hole 223. The locking rod 160 is configured to extend into the locking hole 120 under the push of the piston 150 to limit the extension portion 221 in the second installation slot 110.

[0042] When installing the workbench 200 on the base 100, the extension part 221 is inserted into the second installation groove 110 from top to bottom. The pressurized gas enters the air cavity 130 through the ventilation pipe 140, pushing the piston 150 to move in the direction close to the locking hole 120. The piston 150 drives the locking rod 160 to move synchronously until one end of the locking rod 160 is inserted into the locking hole 120, so as to fix the workbench 200 to the base 100.

[0043] When the workbench 200 is removed from the base 100, the gas in the air cavity 130 is discharged through the ventilation pipe 140, and the piston 150 moves in a direction away from the locking hole 120. The piston 150 drives the locking rod 160 to move synchronously, and the locking rod 160 disengages from the locking hole 120, and then lifts the workbench 200 upward from the base 100.

[0044] In the positioning tool of this embodiment, the workbench 200 and the base 100 can be quickly assembled and disassembled, which helps to improve production efficiency.

[0045] In some embodiments, reference Fig.10 The ventilation duct 140 includes a first sub-ventilation duct 141 and a second sub-ventilation duct 142. The first sub-ventilation duct 141 is configured to deliver gas into the air cavity 130. The second sub-ventilation duct 142 is configured to discharge the gas in the air cavity 130.

[0046] In some embodiments, reference Fig. 9 One end of the ventilation pipe 140 extends to the side of the base 100 so as to be connected to an external gas source or to exhaust gas.

[0047] In some embodiments, reference Fig. 9A plurality of locking holes 120 are arranged on the inner wall of the second installation slot 110, and the plurality of locking holes 120 are arranged at intervals along the length direction of the second installation slot 110. Figure 8 The extension portion 221 is provided with a plurality of through holes 223, and the plurality of through holes 223 are arranged at intervals along the length direction of the extension portion 221. The plurality of locking holes 120 are connected to the plurality of through holes 223 respectively.

[0048] In some embodiments, reference Figure 8 , a plurality of extension portions 221 are provided at the bottom of the workbench 200. Fig. 9 , a plurality of second mounting grooves 110 are provided on the base 100. The plurality of extension portions 221 are respectively provided corresponding to the plurality of second mounting grooves 110, which helps to improve the connection reliability between the workbench 200 and the base 100.

[0049] In some embodiments, reference Figure 8 , a first positioning portion 222 is provided at the bottom of the workbench 200. Fig. 9 , a second positioning portion 170 is provided on the base 100. Figure 2 The first positioning portion 222 cooperates with the second positioning portion 170 to achieve pre-positioning of the workbench 200 during installation.

[0050] For example, the first positioning portion 222 is a convex strip, the second positioning portion 170 is a groove, and the protrusion is inserted into the groove.

[0051] In some embodiments, the limiting structure of the positioning tool includes a first limiting portion 300 . Figure 5 3 is a structural diagram of the first limiting portion 300.

[0052] The first position limiting portion 300 includes a first lifting portion 310. The first lifting portion 310 is disposed on the workbench 200, and the first lifting portion 310 is configured to move along a first direction of the workbench 200. For example, the first direction is a length direction of the workbench 200.

[0053] The first limiting part 300 includes a first sub-limiting part 320. The first sub-limiting part 320 is disposed on the first lifting part 310. The first lifting part 310 is further configured to drive the first sub-limiting part 320 to move along the height direction of the workbench 200.

[0054] The first sub-limiting portion 320 includes a first sub-limiting portion 320A. The first sub-limiting portion 320A is configured to move along the height direction of the workbench 200 to limit the displacement of the shaft box 600 along the height direction.

[0055] The first sub-limiting portion 320 includes a first sub-limiting portion 320B. At least two first sub-limiting portions 320B are arranged relatively along the second direction of the workbench 200. For example, the second direction is the width direction of the workbench 200. The at least two first sub-limiting portions 320B arranged relatively are configured to limit the displacement of the shaft box 600 along the second direction of the workbench 200.

[0056] The first sub-limiting portion 320A and the first sub-limiting portion B do not limit the shaft box body 600 at the same time, but the first sub-limiting portion 320A or the first sub-limiting portion 320B is specifically selected to limit the shaft box body 600 according to factors such as the installation method and type of the shaft box body 600.

[0057] For example, refer to Figure 1 The shaft box body 600 is placed flat on the workbench 200, the first sub-limiting portion 320A is in contact with the top surface of the shaft box body 600, the first sub-limiting portion 320B has no contact with the shaft box body 600, the shaft box body 600 is limited between the first sub-limiting portion 320A and the surface of the workbench 200, and the height displacement of the shaft box body 600 is limited.

[0058] For another example, which is not illustrated in the figure, the shaft box body 600 is placed vertically on the workbench 200, the first sub-limiting portion 320B abuts against the side of the shaft box body 600, the first sub-limiting portion 320A has no contact with the shaft box body 600, and the shaft box body 600 is limited between the two relatively arranged first sub-limiting portions 320B, and the displacement of the shaft box body 600 along the second direction of the workbench 200 is limited.

[0059] In some embodiments, the limiting structure of the positioning tool includes a second limiting portion 400 . Figure 6 4 is a structural diagram of the second limiting portion 400.

[0060] The second limiting part 400 includes a second sub-limiting part 420 and a second lifting part 410. The second sub-limiting part 420 is arranged on the second lifting part 410. The second lifting part 410 is arranged on the workbench 200. The second lifting part 410 is configured to drive the second sub-limiting part 420 to move along the height direction of the workbench 200. At least two second limiting parts 400 are arranged opposite to each other along the first direction of the workbench 200, and the at least two second limiting parts 400 arranged opposite to each other are configured to limit the displacement of the shaft box 600 along the first direction of the workbench 200.

[0061] The second limiting portion 400 and the first limiting portion 300 do not limit the shaft box 600 at the same time, but the first sub-limiting portion 320 and / or the second limiting portion 400 are specifically selected to limit the shaft box 600 according to factors such as the installation method and type of the shaft box 600.

[0062] In the positioning tooling of this embodiment, the first limit portion 300 and the second limit portion 400 limit the axle box body 600 from different directions, and the positions of the first limit portion 300 and the second limit portion 400 can be adjusted, thereby providing a multi-directional clamping function, which can adapt to different installation methods of the axle box body 600 and adapt to the clamping and positioning requirements of various models of axle boxes 600.

[0063] In some embodiments, reference Figure 5 The first sub-limiting portion 320B includes a first threaded rod 3221 and a first threaded sleeve 3222. The first threaded rod 3221 extends along the second direction of the workbench 200. The first threaded sleeve 3222 is sleeved on the first threaded rod 3221. The first threaded sleeve 3222 is arranged at the power output end of the first lifting portion 310.

[0064] The first lifting part 310 is a cylinder, and the first threaded sleeve 3222 is fixedly disposed on the piston rod of the cylinder.

[0065] The first sub-limiting portion 320A includes a second threaded rod 3211 and a second threaded sleeve 3212 . The second threaded rod 3211 extends along the height direction of the workbench 200 . The second threaded sleeve 3212 is sleeved on the second threaded rod 3211 . The second threaded sleeve 3212 is fixedly disposed at the end of the first threaded rod 3221 .

[0066] A first abutting portion 331 is disposed on a side of the second threaded sleeve 3212 . The first abutting portion 331 is configured to abut against the shaft box 600 to limit displacement of the shaft box 600 along the second direction of the workbench 200 .

[0067] A second abutting portion 332 is disposed at the bottom of the second threaded rod 3211 . The second abutting portion 332 is configured to abut against the shaft box 600 to limit displacement of the shaft box 600 in the height direction of the workbench 200 .

[0068] In some embodiments, reference Figure 7 A first opening 240 is provided on the workbench 200 , and the first opening 240 extends along a first direction of the workbench 200 .

[0069] Reference Figure 5 A first mounting portion 340 is disposed at the bottom of the first lifting portion 310 . The first mounting portion 340 is disposed in the first opening 240 and is configured to move along the length direction of the first opening 240 to achieve displacement of the first limiting portion 300 along the first direction of the workbench 200 .

[0070] In some embodiments, the first mounting portion 340 is a plate-like structure. Figure 2A bolt 341 is passed through the first mounting portion 340 , and the bolt 341 passes through the first opening 240 to fix the first mounting portion 340 to the first opening 240 .

[0071] When the position of the first limiting portion 300 along the first direction of the workbench 200 needs to be adjusted, the bolt 341 is loosened to move the first mounting portion 340 along the first opening 240 . After the first mounting portion 340 moves to the target position, the bolt 341 is tightened.

[0072] In some embodiments, reference Figure 5 A first guide rail 350 is disposed on the first mounting portion 340 , and the first guide rail 350 extends along a height direction of the workbench 200 .

[0073] The first threaded sleeve 3222 is provided with a second mounting portion 360 , and the second mounting portion 360 is provided with a first guide portion 361 . The first guide portion 361 is configured to move along a height direction of the first guide rail 350 .

[0074] For example, the first guide portion 361 is a sleeve, which is sleeved on the first guide rail 350 , and moves along the height direction of the first guide rail 350 .

[0075] The cooperation between the first guide rail 350 and the first guide portion 361 helps to improve the stability of the lifting movement of the first lifting portion 310 .

[0076] In some embodiments, reference Figure 6 The second sub-limiting portion 420 includes a third abutting portion 421 and a connecting portion 422. The connecting portion 422 is disposed at the power output end of the second lifting portion 410, and the third abutting portion 421 extends along the second direction of the workbench 200.

[0077] For example, the second lifting part 410 is a cylinder, the connecting part 422 is fixedly arranged on the piston rod of the cylinder, and the connecting part 422 moves synchronously with the piston rod.

[0078] The connecting portion 422 is disposed on the third abutting portion 421 and its position along the length direction of the third abutting portion 421 is adjustable.

[0079] For example, the third abutting portion 421 is a rectangular strip structure, the connecting portion 422 is a sleeve, the sleeve is sleeved on the rectangular strip structure, and the rectangular strip structure can be moved horizontally left and right through the sleeve, thereby adjusting the position of the third abutting portion 421.

[0080] The third abutting portion 421 is configured to abut against the shaft box 600. At least two third abutting portions 421 are relatively arranged along the first direction of the workbench 200, and at least two relatively arranged third abutting portions 421 abut against opposite sides of the shaft box 600, thereby limiting the displacement of the shaft box 600 along the first direction of the workbench 200.

[0081] In some embodiments, the third abutting portion 421 is provided with a plurality of bolt holes 423 arranged at intervals along its length direction, and bolts pass through the bolt holes 423 and the connecting portion 422 to stop the third abutting portion 421 at a target position.

[0082] In some embodiments, reference Figure 7 The workbench 200 includes a first sub-workbench 210 and a second sub-workbench 220 . The first sub-workbench 210 is disposed above the second sub-workbench 220 , and an installation space 230 is formed between the first sub-workbench 210 and the second sub-workbench 220 .

[0083] Reference Figure 1 The first sub-workbench 210 is configured to place the shaft box 600, and the second sub-workbench 220 is configured to be detachably connected to the base 100. The first sub-workbench 210 is provided with a second opening 250, and the second opening 250 extends along the second direction of the workbench 200.

[0084] Reference Figure 2 and Figure 6 The positioning tool further includes an adjusting portion 500, which is disposed in the installation space 230. The adjusting portion 500 is connected to the second lifting portion 410, and the second lifting portion 410 passes through the second opening 250. The adjusting portion 500 is configured to drive the second lifting portion 410 to move along the length direction of the second opening 250, thereby adjusting the overall position of the second limiting portion 400.

[0085] In some embodiments, reference Figure 6 The adjusting part 500 includes a first mounting groove 510, which is fixedly arranged on the second sub-workbench 220. The top of the first mounting groove 510 is open. A screw rod 520 is arranged in the first mounting groove 510. A screw rod seat 530 is arranged on the screw rod 520. The screw rod seat 530 is connected to the second lifting part 410. For example, the second lifting part 410 is a cylinder, and the screw seat is fixedly arranged at the bottom of the cylinder body of the cylinder.

[0086] One end of the lead screw is an adjustment operating part 550, and the adjustment operating part 550 extends out of the first installation slot 510. When adjusting, the adjustment operating part 550 is rotated, the lead screw 520 rotates, and drives the lead screw seat 530 to move along the length direction of the first installation slot 510, thereby realizing the position adjustment of the second limit part 400.

[0087] In some embodiments, the screw seat 530 is slidably connected to the first mounting groove 510 to improve the movement stability of the screw seat.

[0088] For example, a sliding groove is provided on the screw seat 530 , and the sliding groove is slidably connected to the upper edge of the groove wall of the first installation groove 510 .

[0089] In some embodiments, a guide rod 540 is disposed in the first mounting groove 510, and a through hole is disposed on the screw seat 530 for the guide rod 540 to pass through. The sliding connection between the guide rod 540 and the screw seat 530 further improves the movement stability of the screw seat 530.

[0090] In some embodiments, the positioning tool includes a base 100 and a plurality of workbenches 200 , and a first limiting portion 300 and a second limiting portion 400 are disposed on any workbench 200 .

[0091] Before the workbench 200 is installed on the base 100 , the shaft box 600 is installed on the workbench, and the shaft box 600 is limited by the first limiting portion 300 and the second limiting portion 400 .

[0092] Figure 1 The figure shows a structure diagram after the shaft box 600 is installed on the workbench 200. Figure 1 The central positioning tooling includes four first limit parts 300 and two second limit parts 400. The four first limit parts 300 are arranged opposite to each other in pairs along the second direction of the workbench 200. The two second limit parts 400 are arranged opposite to each other along the first direction of the workbench 200. The shaft box body 600 is placed flat on the workbench 200, and the two first sub-limit parts 320A are respectively abutted against the two spring seats 620. The first sub-limit parts 320A abut against the upper surface of the spring seat 620, and the other two first sub-limit parts 320A abut against the upper surface of the bearing support 610.

[0093] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0094] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A rail vehicle axle box processing and positioning tool, characterized in that: include: Base; A workbench, detachably arranged above the base, the workbench being configured to place the shaft box body to be processed; The first limiting part comprises a first sub-limiting part and a first lifting part, the first lifting part is arranged on the workbench, the first lifting part is configured to move along the first direction of the workbench, the first sub-limiting part is arranged on the first lifting part, the first lifting part is further configured to drive the first sub-limiting part to move along the height direction of the workbench, the first sub-limiting part comprises a first sub-limiting part A and a first sub-limiting part B, the first sub-limiting part A is configured to move along the height direction of the workbench to limit the displacement of the shaft box body along the height direction, at least two of the first sub-limiting parts B are arranged relatively along the second direction of the workbench, and the at least two first sub-limiting parts B arranged relatively are configured to limit the displacement of the shaft box body along the second direction of the workbench; The second limiting portion includes a second sub-limiting portion and a second lifting portion, the second sub-limiting portion is arranged on the second lifting portion, the second lifting portion is arranged on the workbench, the second lifting portion is configured to drive the second sub-limiting portion to move along the height direction of the workbench, at least two of the second limiting portions are arranged relatively along the first direction of the workbench, and the at least two second limiting portions arranged relatively are configured to limit the displacement of the shaft box body along the first direction of the workbench.

2. The positioning tool according to claim 1, characterized in that: The first sub-limiting portion B comprises a first threaded rod and a first threaded sleeve, the first threaded rod extends along the second direction of the workbench, the first threaded sleeve is sleeved on the first threaded rod, and the first threaded sleeve is arranged at the power output end of the first lifting portion; The first sub-limiting portion A comprises a second threaded rod and a second threaded sleeve, wherein the second threaded rod extends in the height direction of the workbench, the second threaded sleeve is sleeved on the second threaded rod, and the second threaded sleeve is fixedly arranged at the end of the first threaded rod; The second threaded sleeve is provided with a first abutting portion, and the first abutting portion is configured to abut against the shaft box to limit the displacement of the shaft box along the second direction of the workbench; A second abutting portion is disposed at the bottom of the second threaded rod, and the second abutting portion is configured to abut against the shaft box to limit the displacement of the shaft box along the height direction of the workbench.

3. The positioning tool according to claim 2, characterized in that: The workbench is provided with a first opening, and the first opening extends along a first direction of the workbench; A first mounting portion is disposed at the bottom of the first lifting portion. The first mounting portion is disposed at the first opening and is configured to move along a length direction of the first opening.

4. The positioning tool according to claim 3, characterized in that: The first mounting portion is provided with a first guide rail, and the first guide rail extends along the height direction of the workbench; The first threaded sleeve is provided with a second mounting portion, the second mounting portion is provided with a first guide portion, and the first guide portion is configured to move along a height direction of the first guide rail.

5. The positioning tool according to claim 1, characterized in that: The second sub-limiting portion includes a third abutting portion and a connecting portion, the connecting portion is arranged at the power output end of the second lifting portion, the third abutting portion extends along the second direction of the workbench, the connecting portion is arranged on the third abutting portion and its position along the length direction of the third abutting portion is adjustable, and the third abutting portion is configured to abut against the axle box body.

6. The positioning tool according to any one of claims 1 to 5, characterized in that: The workbench comprises a first sub-workbench and a second sub-workbench, the first sub-workbench is arranged above the second sub-workbench, an installation space is formed between the first sub-workbench and the second sub-workbench, the first sub-workbench is configured to place the shaft box, the second sub-workbench is configured to be detachably connected to the base, and a second opening is arranged on the first sub-workbench, and the second opening extends along a second direction of the workbench; The positioning tool also includes an adjusting part, which is arranged in the installation space, connected to the second lifting part, and the second lifting part passes through the second opening. The adjusting part is configured to drive the second lifting part to move along the length direction of the second opening.

7. The positioning tool according to claim 6, characterized in that: The adjusting part includes a first mounting groove, the first mounting groove is fixedly arranged on the second sub-workbench, a screw rod is arranged in the first mounting groove, a screw rod seat is arranged on the screw rod, the screw rod seat is connected with the second lifting part, and the screw rod seat is slidably connected with the first mounting groove.

8. The positioning tool according to any one of claims 1 to 5, characterized in that: The base is provided with a second mounting groove, the inner wall of the second mounting groove is provided with a lock hole, an air cavity and a ventilation pipe are provided in the base, one end of the ventilation pipe is connected with the air cavity, the other end of the ventilation pipe is connected with the pressurized gas, a piston is provided in the air cavity, and a locking rod is provided at one end of the piston; An extension portion is provided at the bottom of the workbench, and the extension portion is arranged in the second mounting groove. A through hole is provided on the extension portion, and the locking rod is arranged in the through hole. The locking rod is configured to extend into the locking hole under the push of the piston to limit the extension portion in the second mounting groove.

9. The positioning tool according to any one of claims 1 to 5, characterized in that: The positioning tool comprises a base and a plurality of workbenches, and any of the workbenches is provided with the first limiting portion and the second limiting portion; Before the workbench is installed on the base, the shaft box is installed on the workbench, and the shaft box is limited by the first limiting part and the second limiting part.

10. A method for machining and positioning a rail vehicle axle box, characterized in that: The positioning tool according to any one of claims 1 to 9 is applied, wherein the positioning tool comprises one base and a plurality of workbenches, and the first limiting portion and the second limiting portion are provided on any of the workbenches; The positioning method comprises: Before the workbench is mounted on the base, the shaft box is mounted on the workbench, and the shaft box is limited by the first limiting part and the second limiting part; The workbench with the shaft box installed is installed on the base. When one shaft box is processed on one of the workbenches, the other shaft box to be processed is positioned and installed on the other workbench that is not installed on the base.

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