CN112917092A - Machining method of carriage floor groove - Google Patents
Machining method of carriage floor groove Download PDFInfo
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- CN112917092A CN112917092A CN201911234647.XA CN201911234647A CN112917092A CN 112917092 A CN112917092 A CN 112917092A CN 201911234647 A CN201911234647 A CN 201911234647A CN 112917092 A CN112917092 A CN 112917092A
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- floor
- groove
- piece
- welding
- forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D17/00—Construction details of vehicle bodies
- B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
- B61D17/10—Floors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a processing method of a carriage floor groove, belonging to the technical field of railway vehicles and comprising the steps of respectively processing grooves on a plurality of single-piece sectional materials; respectively processing half holes on two sides of each single section by taking the groove as a reference; sequentially arranging and connecting the single section bars, wherein corresponding half holes on two adjacent single section bars are matched; cutting two ends of the single section bar to align the end faces of the single section bar; fixedly connecting the single section bars to form an integral floor; and (5) polishing and processing the floor. According to the processing method of the carriage floor groove, the groove is firstly processed on each single section bar independently, and the grooves are determined to be aligned accurately through matching and butting of the half holes, so that the accuracy of the processing size of each groove on the floor can be effectively guaranteed, and the installation of a seat is facilitated.
Description
Technical Field
The invention belongs to the technical field of railway vehicles, and particularly relates to a machining method of a carriage floor groove.
Background
When the floor of the carriage is produced, a groove structure is required to be arranged on the bottom plate, so that other built-in components such as seats and the like can be conveniently installed. The prior floor production method comprises the steps of firstly, assembling and welding a plurality of floor plate types to form an integral floor, then, hoisting the floor to a processing tire position, processing a groove on the floor according to a processing drawing and integrally processing the floor; and finally, the machined floor is hoisted to a storage area, the size of the groove machined by the method is not accurate, the machining accuracy of each groove needs to be measured for many times, and the labor intensity of workers is increased.
Disclosure of Invention
The invention aims to provide a processing method of a carriage floor groove, and aims to solve the technical problems that in the prior art, the floor groove has poor processing accuracy and is not beneficial to seat installation.
In order to achieve the purpose, the invention adopts the technical scheme that: the processing method of the carriage floor groove comprises the following steps:
machining a groove for installing a seat on the single-piece section;
respectively processing half holes on two sides of the single section by taking the groove as a reference;
arranging a plurality of single-piece sectional materials in a row, and butting corresponding half holes on two adjacent single-piece sectional materials;
cutting two ends of the single section bar to enable two end faces of each single section bar to be aligned respectively;
fixedly connecting the single section bars to form an integral floor;
and grinding the floor.
As another embodiment of the application, each single-piece section bar is fixedly connected in a welding mode, and welding wire solution is filled in the butted half holes.
As another embodiment of the present application, the welding manner includes spot welding and assembly welding performed in sequence.
As another embodiment of the application, the welding positions of the spot welding between two adjacent single-piece section bars are arranged at equal intervals.
As another embodiment of the application, the welding positions of two adjacent spot welding in the direction perpendicular to the length direction of the single-piece section bar are staggered.
As another embodiment of the application, when each single-piece section is used for processing the groove, the temperature change of the processing environment is between 0 and 10 ℃.
As another embodiment of the present application, the half-hole includes:
the first semicircular hole is formed in the front face of the single-piece section;
and the second semicircular hole is formed in the reverse side of the single section.
As another embodiment of the application, after the single section bars are fixedly connected to form the integral floor, the center line of the floor is determined, and the deviation value of each groove and the center line is verified.
As another embodiment of the present application, a plurality of sets of corresponding data are detected at both ends of the floor, an average value of each set of data is calculated to obtain intermediate points on a plurality of floors, and each intermediate point is connected to determine the center line.
The processing method of the carriage floor groove provided by the invention has the beneficial effects that: compared with the prior art, the processing method of the carriage floor groove of the invention comprises the steps of processing the groove on each single section bar to ensure that the groove is accurate in size, processing half holes on two sides of each single section bar respectively, arranging the single section bars in sequence, matching corresponding half holes on two adjacent single section bars to form a whole hole, achieving the effect of aligning the grooves on the single section bars, cutting two ends of each single section bar to ensure that the distance between the groove on each single section bar and the two ends of each single section bar is the same, then fixedly connecting the single section bars integrally to form an integral floor, and finally polishing the floor to finish the production of the floor, wherein by the mode, the groove is processed on each single section bar independently, and the grooves are determined to be aligned accurately through matching and butting of the half holes, so that the position accuracy between the grooves on the floor can be effectively ensured, the installation of the seat is facilitated.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a method for machining a groove in a floor of a vehicle compartment according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fixed processing single-piece profile provided by an embodiment of the invention;
FIG. 3 is a schematic structural view of a fixed-processing whole floor provided by an embodiment of the invention;
fig. 4 is a schematic structural diagram of a distance between a verification groove and a center line according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a single piece profile; 11. a groove; 12. half-hole; 2. and a card pressing device.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, a method for forming a recess in a floor of a vehicle compartment according to the present invention will now be described. A processing method of a carriage floor groove comprises the steps of processing a groove 11 for installing a seat on a single-piece section bar 1; respectively processing half holes 12 on two sides of each single-piece section bar 1 by taking the groove 11 as a reference; arranging the single-piece section bars 1 in a row, and matching the corresponding half holes 12 on the two adjacent single-piece section bars 1; cutting two ends of the single section bar 1 to enable two end faces of each single section bar 1 to be aligned respectively; fixedly connecting the single section bars 1 to form an integral floor; and (5) polishing and processing the floor.
Compared with the prior art, the processing method of the carriage floor groove provided by the invention comprises the steps of processing the groove 11 on each single-piece section bar 1 to ensure that the size of the groove 11 is more accurate, processing the half holes 12 on the two sides of the single-piece section bar 1 respectively, then arranging the single-piece section bars 1 in sequence, matching the corresponding half holes 12 on the two adjacent single-piece section bars 1 to form a whole hole, achieving the effect of aligning the grooves 11 on the single-piece section bars 1, cutting off the two ends of the single-piece section bar 1 to ensure that the distance between the groove 11 on each single-piece section bar 1 and the two ends of the single-piece section bar 1 is the same, then fixedly connecting the single-piece section bars 1 integrally to form an integral floor, and finally polishing the floor to finish the production of the floor, wherein the groove 11 is processed on the single-piece section bar 1 in the mode, and the alignment of each groove 11 is determined by the butt joint of each half hole 12, so that the position accuracy, the installation of the seat is facilitated.
When the groove 11 is processed on the single section bar 1, the single section bar is fixed by using a pressing and clamping device 2, and the pressing and clamping device 2 adopts a mode of combining a supporting seat, a cross beam, a pressing plate and a screw rod, so that the pressing and clamping are not interfered with a main shaft of a machine tool; the support seat is formed by welding steel plates in a splicing way, is 700mm long, 280mm high and 140mm wide and is connected with the cross beam by bolts; the supporting seat is a nylon block with the length of 700mm, the height of 200mm and the width of 140mm, and is provided with a side positioning part, so that the workpiece can be quickly aligned and clamped. The tool is simple in structure and convenient to operate, and meets the processing requirement of the floor single-piece section bar 1. And determining the part number and the program number of the single-piece section bar 1 according to the cross section shape of the single-piece section bar 1 and the single-piece processing drawing. The process is as follows: hoisting and pressing a clamp, processing the front side of the section bar, turning the section bar, pressing the clamp, processing the back side of the section bar, and detaching and hoisting. The single section bars 1 are mostly strip-shaped, and the long side surfaces of the single section bars 1 are jointed and contacted with each other, so that the floor with a square structure is formed. The two half-holes 12 are easier and more accurate to match, thus ensuring the accurate alignment of the grooves 11 on each single-piece section bar 1. Grooves 11 are machined in the front and back surfaces of the single section bar 1, so that the floor is convenient to use.
Referring to fig. 1 and 2, as a specific embodiment of the method for processing a car floor groove provided by the present invention, the single-piece profiles 1 are fixedly connected by welding, and the half-holes 12 are filled with a welding wire solution, and the single-piece profiles 1 are fixedly connected by welding, so that the single-piece profiles 1 have high connection strength, the production efficiency is improved, and the cost is low. In the welding process, a welding wire solution is filled into the whole hole formed by the two half holes 12 to fill the two half holes 12, so that the connection strength between the two adjacent single section bars 1 is further improved, and the whole floor is ensured to have no defects.
Referring to fig. 1 and 2, as a specific embodiment of the method for processing the groove of the car floor provided by the present invention, the welding mode includes tack welding and assembly welding performed in sequence, and tack welding is first used to tack weld two adjacent single-piece profiles 1, so that deformation caused by welding operation can be effectively controlled, and the dislocation of the groove 11 on each single-piece profile 1 is ensured to be not more than 0.5 mm. And after tack welding, a double-gun manipulator is used for carrying out assembly welding on the welding seams, and the single sectional materials 1 are connected together more firmly to form a stable and reliable floor. The welding points of the spot welding in the direction vertical to the single section bars 1 are arranged in a staggered way, so that the influence of welding deformation and the groove 11 is reduced or even eliminated.
Referring to fig. 1 and 2, as a specific embodiment of the method for processing the recess of the car floor provided by the present invention, welding positions of each point welding between two adjacent single-piece profiles 1 are arranged at equal intervals, and the two adjacent single-piece profiles 1 are spot-welded along a joint, so as to ensure that the single-piece profiles 1 are not deviated due to welding in the spot-welding process, and therefore, when the spot-welding is performed, the two adjacent single-piece profiles 1 are arranged at equal intervals along each welding position of the joint, so that deformation generated by the welding of each point welding offsets a part of each other, and the influence on the size of the recess 11 is reduced.
Referring to fig. 1 and 2, as a specific embodiment of the method for processing a car floor groove provided by the present invention, welding positions of two adjacent spot welds in a direction perpendicular to a length direction of a single-piece profile 1 are staggered, when a floor is composed of a plurality of single-piece profiles 1, joints of the plurality of adjacent single-piece profiles 1 requiring spot welds are formed, and welding positions of the spot welds in the direction perpendicular to the length direction of the single-piece profiles 1 are staggered, so that a distance between the adjacent welding positions in the direction is increased, and mutual influence between the two adjacent spot welds in the direction is avoided. A plurality of welding positions which can be arranged in the direction are arranged in a snake shape, so that the problem of mutual influence is avoided, and the operation is convenient.
Referring to fig. 1 and 2, as a specific embodiment of the method for processing a car floor groove provided by the present invention, when each single section bar 1 is processed into a groove 11, the temperature change of the processing environment is between 0 and 10 ℃, i.e., the temperature of the processing environment is monitored, so that the temperature deviation of the processing environment is between 0 and 10 ℃, and the influence on the size of each single section bar 1 due to an excessive temperature change is avoided. Can set up thermometer and heat sink by the operating position, the staff can open or close the heat sink according to the data of thermometer, guarantees that operational environment's temperature deviation is between 0-10 ℃, can set up temperature sensor, controller and heat sink connection simultaneously, and temperature sensor discerns operational environment's temperature to produce on the signal transmission gives the controller, by this signal of controller analysis, and control heat sink work, make the controlled temperature more accurate.
Referring to fig. 1 and 2, as a specific embodiment of the method for processing a car floor groove provided by the present invention, the half-hole 12 includes a first half-hole and a second half-hole, and the first half-hole is disposed on the front surface of the single-piece profile 1; the second semicircular hole is formed in the reverse side of the single-piece section bar 1, and the first semicircular hole and the second semicircular hole which are respectively located on the front side and the reverse side of the single-piece section bar 1 are arranged, so that when the whole hole is formed by butting two adjacent first semicircular holes, whether the position of the processed semicircular hole is accurate relative to the groove 11 can be judged by observing whether the butting of the two adjacent second semicircular holes is accurate. The semicircular holes are used as the semicircular holes 12, and when the two first semicircular holes are in butt joint or the two second semicircular holes are in butt joint, the positions of the grooves 11 can be determined by observing and forming a complete circle. And no matter the front or the back of the single-piece section bar 1 is processed firstly, the normal operation of the work is not influenced, the single-piece section bar 1 does not need to be turned over specially, and the work efficiency is improved. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 4, as a specific embodiment of the method for processing the grooves of the car floor provided by the present invention, after the single section bars 1 are fixedly connected to form the entire floor, the center line of the floor is determined, the deviation value between each groove 11 and the center line is verified, and before the entire floor is ground and processed, the distance between each groove 11 and the center line on the side sill floor is determined by determining the center line, so as to verify whether the corresponding grooves 11 are aligned and are within the error range. And the relative data can be compared with a drawing, accurate offset is carried out within an allowable tolerance range so as to meet tolerance requirements, and the center after offset is determined as a floor processing center.
Referring to fig. 1 to 4, as a specific embodiment of the method for processing a car floor groove provided by the present invention, a plurality of sets of corresponding data are detected at two ends of a floor, an average value of each set of data is calculated to obtain intermediate points on a plurality of floors, the intermediate points are connected to determine a center line, and three sets of data are respectively detected from top to bottom at two ends of the floor: y1, Y2; y3, Y4; y5, Y6. And determining the center line of the floor panel by taking the average value of the three sets of data as a reference, and detecting the values of the aligned grooves 11 from the center line, namely the values of X1 and X2. Firstly, checking that the difference of the values of X3 and X4 is less than 0.5 mm; secondly, comparing the detected X1 and X2 numerical values with the sizes in the drawing, observing whether the numerical values are within a tolerance range, and if the numerical values are within the tolerance range, determining the center line as a floor processing center line for integral processing; if the tolerance range is exceeded, calculating the average value of the X1 and X2 values, comparing the average value with the center line, accurately offsetting the center line according to the allowed tolerance so as to meet the tolerance requirement, and regarding the offset center line as the integral floor processing center line. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The processing method of the carriage floor groove is characterized by comprising the following steps:
machining a groove for installing a seat on the single-piece section;
respectively processing half holes on two sides of the single section by taking the groove as a reference;
arranging a plurality of single-piece sectional materials in a row, and butting corresponding half holes on two adjacent single-piece sectional materials;
cutting two ends of the single section bar to enable two end faces of each single section bar to be aligned respectively;
fixedly connecting the single section bars to form an integral floor;
and grinding the floor.
2. The method of forming a recess in a vehicle floor of claim 1, wherein said single-piece sections are fixedly joined by welding and a welding wire solution is used to fill said half-holes.
3. A method of forming a floor groove in a vehicle compartment as defined in claim 2, wherein said welding comprises tack welding and assembly welding in a sequential order.
4. A method of forming a floor recess in a vehicle compartment as defined in claim 3, wherein the welding positions of the tack welds between adjacent two of said one-piece profiles are equally spaced.
5. The method of forming a floor groove in a vehicle compartment of claim 2, wherein the welding positions of two spot welds adjacent to each other in a direction perpendicular to the length of the single-piece profile are staggered.
6. The method of forming a floor groove in a vehicle compartment of claim 1, wherein the temperature change of the forming environment is 0 to 10 ℃ when the groove is formed in each of the one-piece shapes.
7. A method of forming a floor groove in a vehicle compartment as defined in claim 1, wherein said half-hole includes:
the first semicircular hole is formed in the front face of the single-piece section;
and the second semicircular hole is formed in the reverse side of the single section.
8. A method of forming a recess in a floor for a vehicle compartment as claimed in any one of claims 1 to 7, wherein after said fixedly joining of said one-piece sections to form an integral floor, a centerline of said floor is determined and a deviation value of each of said recesses from said centerline is verified.
9. A method of forming a recess in a floor of a vehicle compartment as claimed in claim 8, wherein a plurality of sets of corresponding data are detected at both ends of the floor, an average value of each set of data is calculated to obtain intermediate points on a plurality of floors, and the intermediate points are connected to determine the center line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234647.XA CN112917092B (en) | 2019-12-05 | 2019-12-05 | Machining method of carriage floor groove |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911234647.XA CN112917092B (en) | 2019-12-05 | 2019-12-05 | Machining method of carriage floor groove |
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| CN112917092A true CN112917092A (en) | 2021-06-08 |
| CN112917092B CN112917092B (en) | 2022-03-01 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3442720A1 (en) * | 1984-11-23 | 1986-06-05 | Nippon Thompson Co. Ltd., Tokio/Tokyo | Rolling bearing for rectilinear movement |
| CN201588375U (en) * | 2009-09-29 | 2010-09-22 | 钟玉东 | Embedded type combined solid wood flooring |
| CN106607638A (en) * | 2016-12-29 | 2017-05-03 | 丛林集团有限公司 | A railway vehicle chassis floor welding process |
| CN207328455U (en) * | 2017-06-06 | 2018-05-08 | 中车唐山机车车辆有限公司 | A kind of compartment and train |
| CN207389198U (en) * | 2016-11-22 | 2018-05-22 | 中车长春轨道客车股份有限公司 | The built-in floor gap occlusion structure of rail vehicle |
| CN208559343U (en) * | 2018-06-13 | 2019-03-01 | 中车青岛四方机车车辆股份有限公司 | Floor panel structure and train with it |
| CN110077429A (en) * | 2019-05-14 | 2019-08-02 | 南京铁道职业技术学院 | A kind of guest room chassis interior structure for the city rail vehicle being readily disassembled |
-
2019
- 2019-12-05 CN CN201911234647.XA patent/CN112917092B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3442720A1 (en) * | 1984-11-23 | 1986-06-05 | Nippon Thompson Co. Ltd., Tokio/Tokyo | Rolling bearing for rectilinear movement |
| CN201588375U (en) * | 2009-09-29 | 2010-09-22 | 钟玉东 | Embedded type combined solid wood flooring |
| CN207389198U (en) * | 2016-11-22 | 2018-05-22 | 中车长春轨道客车股份有限公司 | The built-in floor gap occlusion structure of rail vehicle |
| CN106607638A (en) * | 2016-12-29 | 2017-05-03 | 丛林集团有限公司 | A railway vehicle chassis floor welding process |
| CN207328455U (en) * | 2017-06-06 | 2018-05-08 | 中车唐山机车车辆有限公司 | A kind of compartment and train |
| CN208559343U (en) * | 2018-06-13 | 2019-03-01 | 中车青岛四方机车车辆股份有限公司 | Floor panel structure and train with it |
| CN110077429A (en) * | 2019-05-14 | 2019-08-02 | 南京铁道职业技术学院 | A kind of guest room chassis interior structure for the city rail vehicle being readily disassembled |
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| CN112917092B (en) | 2022-03-01 |
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