Walking box device and machining method thereof

Abstract

The invention provides a walking box device. The walking box device comprises a walking chassis, a plurality of pairs of rollers and at least one motor, the walking chassis is provided with at least two pairs of opposite roller positioning sleeves; the plurality of pairs of rollers are correspondingly mounted in the plurality of pairs of roller positioning sleeves in pairs, and are connected and linked through universal shafts; at least one motor drives at least one rolling wheel to achieve the walking function, and the motor is arranged on the walking chassis. Through linkage control of the cardan shafts, the high-precision state of overall walking is ensured, and the technical problem that in the prior art, a large walking box device capable of improving the precision is lacked is solved.

Description

Technical field:

[0001] The invention relates to the field of structural design, in particular to a traveling box device and a processing method thereof. Background technology:

[0002] The beam lifting machine project has no similar projects to refer to, so we need to start from scratch, which tests the technical process, quality management and workers' skills. TLJ550-42.1.1.1 and TLJ550-42.7-A.6.1 running boxes are the key parts of the YM2022-45 beam lifting machine project. Due to the large size of the running box, only large equipment can be installed, with complex structure and high precision. If we do not optimize the technical process and tackle key problems, it is difficult to meet the relevant dimensions and technical requirements of the drawings.

[0003] There is an urgent need for a traveling box device and a processing method thereof, which can help solve the technical problem that the prior art lacks a large traveling box device with improved precision. Summary of the invention:

[0004] In one embodiment, the present invention provides a traveling box device, which ensures the high-precision state of the overall walking through the linkage control of the universal joint, and helps to solve the technical problem of the lack of a large-scale traveling box device with improved precision in the prior art.

[0005] The traveling box device comprises a traveling chassis, a plurality of pairs of rollers, and at least one motor;

[0006] The walking chassis has at least two pairs of opposite roller positioning sleeves;

[0007] The plurality of pairs of rollers are correspondingly mounted in the pairs of roller positioning sleeves and are linked by universal shafts;

[0008] At least one motor drives at least one of the rollers to realize the walking function, and the motor is arranged on the walking chassis.

[0009] In one embodiment, the at least one motor is two and both are arranged on one side of the walking chassis and control the rolling of the rollers through an encoder to achieve walking.

[0010] In one embodiment, the pairs of roller positioning sleeves are positioned and connected via a fixing structure;

[0011] The fixed structure includes a horizontal top plate and a bottom supporting plate;

[0012] A plurality of supporting partitions are longitudinally arranged between the transverse top plate and the bottom supporting plate;

[0013] The fixing structure is provided with roller positioning sleeves at the front and rear ends.

[0014] In one embodiment, the plurality of supporting baffles include a first middle baffle and a second middle baffle;

[0015] The second middle partition plate is arranged opposite to the first middle partition plate, and a through hole is arranged in the middle thereof.

[0016] In one embodiment, a connecting seat is provided on the top of the walking chassis, and a transverse through hole is provided on the connecting seat.

[0017] In one embodiment, the walking chassis is a frame structure, which is provided with perforations along the length direction.

[0018] In one embodiment, a rail clamp is provided on the other side of the traveling chassis.

[0019] In one embodiment, the present invention further provides a traveling box device processing method, based on the traveling box device;

[0020] The traveling box device processing method comprises:

[0021] The preset tool is used to process the sleeve holes of the paired roller positioning sleeves. The preset tool comprises a mounting portion, a clamping portion, and a boring tool. The mounting portion is used to be connected to a processing machine tool. The clamping portion clamps the two sides of the boring tool (93) and is fixed by bolts.

[0022] In one embodiment, after the step of machining the sleeve holes of the paired roller positioning sleeves (11) by using a preset tool, the method further comprises:

[0023] Loosen the bolt to adjust the position of the boring tool and continue processing.

[0024] In one embodiment, a plurality of pairs of rollers are connected to the walking chassis via a ball joint assembly. Description of the drawings:

[0025] Figure 1 It is a side structural schematic diagram of a traveling box device in one embodiment of the present invention;

[0026] Figure 2 It is a schematic diagram of the main structure of a traveling box device in another embodiment of the present invention;

[0027] Figure 3 A schematic diagram of a fixing structure in another embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of a first state of a boring tool clamping in another embodiment of the present invention;

[0029] Figure 5 It is a schematic diagram of a second state of a boring tool clamping in another embodiment of the present invention;

[0030] Figure 6 It is a schematic diagram of the surface state in the prior art in another embodiment of the present invention;

[0031] Figure 7 It is a first schematic diagram of the surface state after improvement in another embodiment of the present invention;

[0032] Figure 8 A second schematic diagram of the surface state after improvement in another embodiment of the present invention;

[0033] Fig. 9 A third schematic diagram of the surface state after improvement in another embodiment of the present invention;

[0034] Fig.10 It is a schematic diagram of the structure of a preset knife in another embodiment of the present invention.

[0035] Reference numerals:

[0036] Walking chassis 1

[0037] Roller 2

[0038] Cardan shaft 3

[0039] Motor 4

[0040] Fixed structure 5

[0041] Horizontal roof plate 51

[0042] Bottom plate 52

[0043] Supporting partition 53

[0044] The first middle partition 531

[0045] Second middle partition 532

[0046] Through hole 533

[0047] Connecting seat 6

[0048] Perforation 7

[0049] Rail clamp 8

[0050] Preset Knife 9

[0051] Mounting section 91

[0052] Clamping portion 92

[0053] Boring tool 93

[0054] Bolt 94

[0055] Ball joint assembly 10 Specific embodiment:

[0056] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0057] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0058] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0059] It should also be understood that, although the present application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0060] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0061] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to determine the true intent based on the user's historical operations and to avoid unnecessary or redundant details that make the present application unclear. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but are merely used as the basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0062] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0063] After the overall structure of the travel box device is welded, the secondary machining of the upper and lower bearing seats is heavy, the hole size accuracy is high, and there are 16 retaining ring grooves in the hole. The production time is tight and the task is heavy. In order to ensure the production progress and the quality of the upper and lower bearing seat holes, the third factory organized key personnel to carry out process research and improve production and quality through process innovation.

[0064] There are only three large-scale beam-fixing equipment. In order to speed up the production progress, additional CNC boring machine equipment is added.

[0065] Figure 1 It is a side structural schematic diagram of a traveling box device in one embodiment of the present invention; Figure 2 It is a schematic diagram of the main structure of a traveling box device in another embodiment of the present invention; Figure 3A schematic diagram of a fixing structure in another embodiment of the present invention; Figure 4 It is a schematic diagram of a first state of a boring tool clamping in another embodiment of the present invention; Figure 5 It is a schematic diagram of a second state of a boring tool clamping in another embodiment of the present invention; Figure 6 It is a schematic diagram of the surface state in the prior art in another embodiment of the present invention; Figure 7 It is a first schematic diagram of the surface state after improvement in another embodiment of the present invention; Figure 8 A second schematic diagram of the surface state after improvement in another embodiment of the present invention;

[0066] Fig. 9 A third schematic diagram of the surface state after improvement in another embodiment of the present invention; Fig.10 It is a schematic diagram of the structure of a preset knife in another embodiment of the present invention.

[0067] like Figures 1 to 10 As shown, in one embodiment, the present invention provides a traveling box device, the traveling box device comprising a traveling chassis 1 and a plurality of pairs of rollers 2, and at least one motor 4;

[0068] The traveling chassis 1 has at least two pairs of opposite roller positioning sleeves 11;

[0069] The multiple pairs of rollers 2 are correspondingly installed in the multiple pairs of roller positioning sleeves 11, and are linked and connected through the universal shaft 3;

[0070] At least one motor 4 drives at least one roller 2 to realize the walking function, and the motor 4 is arranged on the walking chassis 1.

[0071] In this embodiment, a specific structure of the traveling box device is provided. Generally speaking, the traveling box device has rollers 2 in a relatively independent rolling state. However, for some ultra-high-precision movement requirements, if the rollers 2 roll independently, the whole device will shake or become unstable, which makes it difficult to achieve high-precision movement. Moreover, when the overall size of the traveling box device is too large, the shaking and instability will be more obvious. In order to make the walking of the traveling box device more stable, the universal joint 3 needs to be synchronized and the incoordination of the two rollers 2 can be flexibly handled, which helps to solve the technical problem of the lack of a large-scale traveling box device with improved precision in the prior art.

[0072] Based on the above-mentioned device structure, in addition to ensuring stability, the high precision of tolerance matching should also be guaranteed, the gap should be greatly reduced, and the movement stability of the walking box device should be ensured. In the past, all dimensions of the walking box were processed on a CNC equipment: 8 upper and lower bearing seats with a thickness of 164mm, that is, the bearings of roller 2, four rollers 2 on the left and right, 8 bearing holes, φ300+0.052 0 holes and 10mm wide, φ335 single-side depth of 17.5mm 16 inner hole retaining ring grooves, φ230+0.046 0 holes and top surface φ250+0.5+0.2 countersunk holes.

[0073] Since the φ300 hole is too large, the ordinary cutter milling circle cannot guarantee the tolerance of 0.052, and chatter marks are prone to occur, which is suitable for rough boring. There is no suitable machined fine boring tool, and the purchase time is too long. The research team tried to modify the boring tool and use the lathe adjustable tool bar welded on the CNC tool handle to process the inner hole. The machined boring tool can be clamped on the tool bar and the length can be adjusted for machining.

[0074] In one embodiment, there are two at least one motor 4, and both are arranged on one side of the walking chassis 1 and control the rolling of the roller 2 through an encoder to achieve walking.

[0075] In one embodiment, the positioning sleeves of the paired rollers 2 are positioned and connected via a fixing structure 5;

[0076] The fixed structure 5 includes a horizontal top plate 51 and a bottom supporting plate 52;

[0077] A plurality of supporting partitions 53 are longitudinally arranged between the horizontal top plate 51 and the bottom supporting plate 52;

[0078] The fixing structure 52 has roller positioning sleeves 11 at the front and rear ends.

[0079] In one embodiment, the plurality of supporting partitions 53 include a first middle partition 531 and a second middle partition 532;

[0080] The second middle partition plate 532 is disposed opposite to the first middle partition plate 531 , and a through hole 533 is disposed in the middle thereof.

[0081] In one embodiment, a connecting seat 6 is disposed on the top of the traveling chassis 1 , and a transverse through hole 61 is disposed on the connecting seat 6 .

[0082] In one embodiment, the traveling chassis 1 is a frame structure, which is provided with through holes 7 along the length direction.

[0083] In one embodiment, a rail clamp 8 is provided on the other side of the traveling chassis 1 .

[0084] In one embodiment, the present invention further provides a traveling box device processing method, based on the traveling box device;

[0085] The traveling box device processing method comprises:

[0086] The preset tool 9 is used to process the sleeve holes of the paired roller positioning sleeves 11. The preset tool 9 includes a mounting portion 91, a clamping portion 92, and a boring tool 93. The mounting portion 91 is used to be connected to a processing machine tool, and the clamping portion 92 clamps both sides of the boring tool 93 and is fixed by bolts 94.

[0087] Since the CNC boring machine worktable can rotate, it can process the 8 upper and lower bearing seats and φ230+0.0460 holes on the traveling box, but cannot process 164mm thickness and top surface countersinks. Large equipment double floor boring and milling machines are also unable to process top surface countersinks. Therefore, a single large fixed beam equipment processes the top surface φ250+0.5+0.2 countersinks and 164mm thickness to ensure production progress.

[0088] The bridge-type large-aperture fine-tuning boring tool TJT200-310 can process 86-216mm in size, that is, boring tool 93. The size can be fine-tuned during fine boring, but the fine boring tool is too small to process φ300 holes. If the boring tool is welded to the tool holder, the fine boring tool cannot process holes of other sizes. To solve this problem, a separate tool is made, and the tool head of the bridge-type large-aperture fine boring tool is removed and installed on the tool without being welded. If the processing is completed later, it can be removed and used again.

[0089] First, use the cutter head to rough mill the hole, use the modified boring tool to semi-finish boring the hole, and use the improved fine-adjustable boring tool to fine-boring the hole. After processing, it only takes 12 minutes to fine-boring the upper and lower bearing seats separately, and the size meets the technical requirements.

[0090] In one embodiment, after the step of machining the holes of the paired roller positioning sleeves 11 by using the preset tool, the method further comprises loosening the bolts 94 to adjust the position of the boring tool 93 and continuing the machining.

[0091] In one embodiment, a plurality of pairs of rollers are connected to the walking chassis 1 via a ball joint assembly 10 .

[0092] The purpose of multiple pairs of rollers passing through the ball joint assembly 10 is to reduce overall vibration and improve movement stability.

[0093] Beneficial effects:

[0094] 1. The processing time of the traveling box is shortened from 6 days / piece to 4 days / piece, which greatly shortens the production cycle.

[0095] 2. After the process improvement, the roughness of the running box hole changed from the original Ra3.2 to Ra1.6, and the tool improvement greatly improved the product quality.

[0096] 3. The inspection qualification rate reaches 99%.

[0097] After the improvement, the fine boring tool can be fine-tuned to bore large-diameter holes, and the method can be extended to subsequent parts with similar partial changes.

[0098] By improving the processing technology, the process is decomposed according to the characteristics of different equipment. Through tool innovation, the boring tool is improved, from rough boring, fine boring to rough boring, semi-fine boring, and fine boring. The improvement of the tool reduces the processing difficulty, and the surface roughness of the hole is significantly improved compared with the previous traditional processing. The daily output is greatly increased, the processing cycle is shortened, and the product delivery time is guaranteed.

[0099] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A traveling box device, characterized in that: The traveling box device comprises: A walking chassis (1) having at least two pairs of opposite roller positioning sleeves (11); A plurality of pairs of rollers (2), the plurality of pairs of rollers (2) being correspondingly mounted in pairs of the plurality of pairs of roller positioning sleeves (11) and being connected in linkage via a universal shaft (3); At least one motor (4) drives at least one of the rollers (2) to realize the walking function, and the motor (4) is arranged on the walking chassis (1).

2. The traveling box device according to claim 1, characterized in that: There are two at least one motor (4), both of which are arranged on one side of the walking chassis (1) and control the rolling of the roller (2) through an encoder to achieve walking.

3. The traveling box device according to claim 2, characterized in that: The pair of positioning sleeves of the rollers (2) are positioned and connected via a fixing structure (5); The fixed structure (5) comprises a transverse top plate (51) and a bottom supporting plate (52); A plurality of supporting partitions (53) are longitudinally arranged between the transverse top plate (51) and the bottom supporting plate (52); The fixing structure (52) has roller positioning sleeves (11) at the front and rear ends.

4. The traveling box device according to claim 3, characterized in that: The plurality of supporting baffles (53) include: a first middle partition (531); A second middle partition (532) is arranged opposite to the first middle partition (531) and has a through hole (533) extending therethrough in the middle.

5. The traveling box device according to claim 4, characterized in that: A connecting seat (6) is provided on the top of the walking chassis (1), and a transverse through hole (61) is provided on the connecting seat (6).

6. The traveling box device according to claim 5, characterized in that: The walking chassis (1) is a frame structure, which is provided with perforations (7) along its length direction.

7. The traveling box device according to claim 6, characterized in that: A rail clamp (8) is provided on the other side of the traveling chassis (1).

8. A method for processing a traveling box device, characterized in that: Based on the traveling box device according to any one of claims 1 to 7; The traveling box device processing method comprises: The sleeve holes of the paired roller positioning sleeves (11) are processed by a preset tool (9), wherein the preset tool (9) comprises a mounting portion (91), a clamping portion (92), and a boring tool (93), wherein the mounting portion (91) is used to be connected to a processing machine, and the clamping portion (92) clamps two sides of the boring tool (93) and is fixed by bolts (94).

9. The method for processing a traveling box device according to claim 8, characterized in that: After the step of machining the sleeve holes of the paired roller positioning sleeves (11) by using a preset tool, the method further comprises: The bolt (94) is loosened to adjust the position of the boring tool (93) and the processing is continued.

10. The traveling box device processing method according to claim 9, characterized in that: A plurality of pairs of rollers are connected to the walking chassis (1) via a ball joint assembly (10).

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