CN216802288U - Data sensing type welding centering device - Google Patents
Data sensing type welding centering device Download PDFInfo
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- CN216802288U CN216802288U CN202220242351.3U CN202220242351U CN216802288U CN 216802288 U CN216802288 U CN 216802288U CN 202220242351 U CN202220242351 U CN 202220242351U CN 216802288 U CN216802288 U CN 216802288U
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Abstract
The utility model discloses a data sensing type welding centering device.A C-shaped bracket is designed to be fixed on a reference steel rail base metal; after the support is fixed, the distances between the support and the working edge of the steel rail base material and the center of the tread of the steel rail base material are measured respectively through two sensors which are arranged on the support and are connected with each other in a sliding mode along the length direction of the base material, and the measured values are used as reference measured values. Therefore, during measurement, the distance between the working edge of the base metal of the steel rail to be welded and the center of the tread can be measured by sliding the two sensors to one side of the steel rail to be welded along the extension rod; and further comparing the distance with the reference measurement value to determine a deviation distance so as to determine whether the joint pair is qualified or not. The utility model has the advantages of convenient, simple and rapid operation, strong operability, high safety factor and low manufacturing cost.
Description
Technical Field
The utility model relates to the technical field of flash welding of base materials of railway steel rails, in particular to a data sensing type welding centering device.
Background
With the continuous development of the railway transportation towards high speed and heavy load, more and more serious challenges are provided for the quality of railway lines. At present, the ultra-long jointless track is the development direction of railway tracks, and the formation of the jointless track greatly reduces the rail joints, so the jointless track has obvious advantages over the common track. The 500m long welded rail as the basic unit of the seamless track is formed by welding a plurality of 25 m-100 m short steel rails on a welded rail base by using a flash welding machine, the quality of the 500m long welded rail has a great influence on the quality of the track, and the welding quality directly influences the driving safety of vehicles. Based on the characteristics of flash welding, the end parts of the steel rails are rapidly heated by large current, and when the end parts of the steel rails are in a hot melting state, pressure is applied to enable the two sections of the steel rails to be in butt joint. At present, the welding performance of a flash welding machine basically meets the internal quality requirement of a steel rail welding seam, and the quality of the welding seam depends on the external quality of a steel rail joint to a great extent. Therefore, it is particularly important to control the external quality of the rail joint from a source.
Centering of all welded rail bases in the whole country in the process of welding steel rails on site mainly depends on automatic centering (primary centering) of welding machine equipment, and as the bases perform tool maintenance and equipment calibration regularly, primary centering is basically qualified, but the bases have different yields and large daily welding amount, so that the equipment state is not good, if operators do not perform secondary fine adjustment, the joint misalignment amount after welding is larger than the range value of enterprise standard of China national railway group Limited company (the maximum allowable value of the joint misalignment amount is less than or equal to 160km/h, the top of a rail is less than or equal to 0.3mm, the working edge is less than or equal to 0.3mm, the bottom of a rail is less than or equal to 2.0mm, the design speed of a high-speed line is more than 160km/h, the top of a rail is less than or equal to 0.2mm, the working edge is less than or equal to 0.2mm, the bottom of a rail is less than or equal to 1.5mm, so that the appearance quality of the joint needs to be sawed, so that the welding operators of the bases at present need to saw cutting after the equipment is automatically finished, all can acquiesce to carry out the secondary centering, then whether qualified through touching joint (rail top, work limit, rail footing) centering with the finger, if unqualified, then the operation personnel adjust through the fine setting button through touching that end of joint with the finger irregularly. Moreover, careless mistakes are easy to occur in long-time operation of operators, and potential safety hazards are easy to occur.
The current disadvantages are:
(1) the operation is complicated in the actual work;
(2) potential safety hazards (easy to clamp hands) exist;
(3) the long rail has low yield (the connector has unqualified appearance and needs to be sawn);
(4) if the surface oxidation layer of the base metal to be welded is thick in the working process, the hand feeling of operators is greatly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a data sensing type welding centering device for solving the problems, which can replace a hand touch to carry out centering judgment and realize safety automation.
The utility model relates to a data sensing type welding centering device which comprises a steel rail fixing support, an extension rod and a distance measuring sensor.
The steel rail fixing bracket is fixedly arranged on the reference steel rail base material. Two extension rods arranged along the length direction of the steel rail are arranged on the steel rail fixing support, and a distance measuring sensor is arranged on each extension rod; and the measuring heads of the two distance measuring sensors respectively face the working edge of the reference steel rail base metal and the bisector of the tread of the reference steel rail base metal.
Therefore, before steel rail welding is carried out, the two distance measuring sensors are reset to zero on the side of a reference steel rail and then move to the side of a steel rail to be welded, the numerical values measured by the two distance measuring sensors are the deviation value between the working edges of the steel rail base metal to be welded and the reference steel rail base metal and the deviation value between the tread of the steel rail base metal to be welded and the reference steel rail base metal, and whether the joint alignment between the steel rail base metals is qualified or not is determined according to the obtained deviation distance.
The utility model has the advantages that:
1. the data sensing type welding centering device is convenient, simple and rapid to operate, high in controllability and low in equipment cost.
2. The data sensing type welding centering device has high safety coefficient, replaces manual finger touch, reduces safety risk, realizes safe production and avoids human interference factors.
3. The data sensing type welding centering device can reduce the generation of joint misalignment and improve the yield of 500m long steel rails.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a data sensing type welding centering device according to the present invention;
FIG. 2 is a schematic diagram of a measurement method of a data sensing type welding centering device according to the present invention.
In the figure:
1-steel rail fixing support 2-strong magnet 3-extension rod
4-distance measuring sensor 5-hole site A6-hole site B
101-bottom positioning rod 102-longitudinal rod 103-connecting rod
104-measuring rod 105-fastening bolt 106-positioning surface
107-convex stage
Detailed Description
The utility model will be further explained with reference to the drawings.
The utility model relates to a data sensing type welding centering device, which comprises a steel rail fixing support 1, a strong magnet 2, an extension rod 3 and a distance measuring sensor 4, and is shown in figures 1 and 2.
The steel rail fixing bracket 1 is composed of a bottom positioning rod 101, a longitudinal rod 102, a connecting rod 103 and a measuring rod 104. Wherein, the bottom positioning rod 101 is horizontally arranged along the x axis; the longitudinal rod 102 is arranged along the y axis, and the bottom end of the longitudinal rod is connected with the outer end of the bottom positioning rod 101; the bottom end of the connecting rod 103 is connected with the top end of the longitudinal rod 102, and the connecting rod 103 inclines towards the inner end of the bottom positioning rod 101 and forms an angle of 45 degrees with the horizontal plane; the measuring rod 104 is arranged along the x axis, is coplanar with the bottom positioning rod 101 and the longitudinal rod 102, is horizontally arranged parallel to the bottom positioning rod 101, and is connected with the top end of the connecting rod 103 at the outer end. Thus, a rail fixing bracket 1 having a C-shaped structure is formed, and a reference rail base material is installed therein.
The bottom surface of the measuring rod 104 is matched with the reference rail base metal tread and can be attached to the reference rail base metal tread. Three grooves are formed in the bottom surface of the measuring rod 104 at equal intervals along the width direction of the steel rail, strong magnets 2 are installed in the grooves, and the bottom surface of the measuring rod 104 and the tread of the base material of the reference steel rail are fixedly adsorbed through the strong magnets 2.
The bottom positioning rod 101 has a threaded hole formed along the y-axis direction for receiving a fastening bolt 105. The fastening bolt 105 is threaded into the threaded hole from below the bottom positioning rod 101. The rail fixing bracket 1 is fixed to the base steel rail by fitting the end of the fastening bolt 105 to the bottom surface of the base steel rail.
An inward protruding boss 107 is designed on the inner side of the bottom end of the longitudinal rod 102, the inner side surface of the boss 107 is a vertical plane and serves as a positioning surface 106 for being attached to the side surface of the rail foot of the reference rail base metal, and transverse positioning between the rail fixing support 1 and the reference rail base metal is achieved.
Thus, the bottom surface of the measuring rod 104 is matched with the tread surface of the reference rail base metal, and is adsorbed and fixed, the inner side positioning surface 106 of the bottom end boss 107 of the combined vertical rod 102 is matched with the side surface of the rail bottom foot of the reference rail base metal, and the fastening bolt 105 is tightly pressed against the bottom surface of the reference rail base metal, so that the rail fixing bracket 1 is installed and fixed on the reference rail base metal.
The extension rods 3 are two metal rods 5cm long, namely an extension rod A and an extension rod B which are arranged along the z-axis direction. The tail ends of the extension rod A and the extension rod B are respectively and fixedly arranged in a hole site A5 at the joint position of the longitudinal rod 102 and the connecting rod 103 in the steel rail fixing bracket 1 and a hole site B6 in the middle of the measuring rod 103.
The number of the distance measuring sensors 4 is two, and the distance measuring sensors are respectively installed on the two extension rods A and the two extension rods B in a sliding mode through precise contact sensors. Meanwhile, the installation positions of the extension rod A and the extension rod B need to ensure that after the steel rail fixing support 1 is fixed on the reference steel rail base metal, the measuring head of the distance measuring sensor 4 on the extension rod A is over against the working edge of the reference steel rail base metal in the steel rail fixing support 1, and the measuring head of the distance measuring sensor 4 on the extension rod B is over against the bisector of the reference steel rail base metal tread.
Therefore, after the steel rail fixing support 1 is installed on the reference steel rail base metal, the two distance measuring sensors 4 are respectively slid along the two extension rods 3, so that the two distance measuring sensors 4 move to the relative positions of the working edges of the steel rail base metal to be welded and the relative positions of the bisectors of the treads, and the deviation distance of the steel rail base metal to be welded relative to the reference steel rail base metal in the steel rail fixing support 1 is measured.
The specific way for measuring the welding deviation distance of the steel rail by applying the utility model is as follows:
as shown in FIG. 2, before welding the rail, the base rail base metal is clamped and fixed on the welding machine fixing frame, the rail base metal to be welded is fixed in the welding machine, and the horizontal distance between the welding surface of the base rail base metal with the welded rail and the welding surface of the base rail base metal with the welded rail is 0.8 mm. When measuring the deviation between the base material and the rail, the rail fixing bracket 1 is fixed on the base material of the reference rail by the above method, and the fixed position is close to the end of the welding section of the base material of the reference rail and is about 2cm away from the end face of the welding end of the base material of the reference rail horizontally.
Subsequently, the two distance measuring sensors 4 are slid to the reference rail base material side with the working edge and the tread of the reference rail base material as reference surfaces, i.e., "zero points", and are zeroed on the reference surface side at this time.
Finally, sliding the two distance measuring sensors 4 to the base metal side of the steel rail to be welded, and measuring by the distance measuring sensors 4 on the extension rod A and the extension rod B; because the two distance measuring sensors 4 are subjected to the zeroing operation on the reference base metal side, the numerical values measured by the two distance measuring sensors 4 are the deviation value between the steel rail base metal to be welded and the working edge of the reference steel rail base metal and the deviation value between the steel rail base metal to be welded and the tread of the reference steel rail base metal, and whether the joint pair between the steel rail base metals is qualified or not is determined according to the obtained deviation distance.
The centering auxiliary device can detect whether the tread and the working edge of the steel rail base metal to be welded are aligned with the reference steel rail base metal, if the deviation value is within the range of the rail top threshold value, the steel rail base metal is qualified, and subsequent welding operation can be carried out. The centering auxiliary device replaces the process of finger touch, realizes the secondary centering task of base metal welding, has a primary yield of a welding joint of 97 percent (meets the enterprise standard of 'enterprise standard of China national railway group company limited company)' of misalignment amount range value of a flash welding joint), reduces the sawing frequency of the joint and improves the welding production efficiency.
Claims (5)
1. The utility model provides a data sensing formula welding centering device which characterized in that: comprises a steel rail fixing bracket, an extension rod and a distance measuring sensor;
the steel rail fixing bracket is fixedly arranged on the reference steel rail base material; two extension rods arranged along the length direction of the steel rail are arranged on the steel rail fixing support, and a distance measuring sensor is arranged on each extension rod; and the measuring heads of the two distance measuring sensors respectively face the working edge of the reference steel rail base metal and the bisector of the tread of the reference steel rail base metal.
2. A data-sensing welding-centering device, as defined in claim 1, wherein: the steel rail fixing bracket is of a C-shaped structure and consists of a bottom positioning rod, a longitudinal rod, a connecting rod and a measuring rod; the bottom positioning rod is attached to the bottom surface of the steel rail base metal; the bottom end of the longitudinal rod is connected with the outer end of the bottom positioning rod; the bottom end of the connecting rod is connected with the top end of the longitudinal rod, and the connecting rod and the horizontal plane form an angle of 45 degrees; the measuring rod is coplanar with the bottom positioning rod and the longitudinal rod, is horizontally arranged parallel to the bottom positioning rod, and the outer end of the measuring rod is connected with the top end of the connecting rod; the bottom surface of the measuring rod is matched with the tread of the base metal of the reference steel rail and is matched and fixed with the tread of the base metal of the reference steel rail.
3. A data-sensing welding-centering device, as defined in claim 2, wherein: three grooves are arranged on the bottom surface of the measuring rod at equal intervals along the width direction of the steel rail, and strong magnets are arranged in the grooves.
4. A data-sensing welding-centering device, as defined in claim 2, wherein: the positioning rod is longitudinally provided with a threaded hole, and a fastening bolt is arranged in the threaded hole.
5. A data-sensing welding-centering device, as defined in claim 2, wherein: the inner side of the bottom end of the longitudinal rod is provided with a boss protruding inwards, the inner side surface of the boss is a vertical plane and is used as a positioning surface to be attached to the side surface of the rail foot of the steel rail base metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220242351.3U CN216802288U (en) | 2022-01-28 | 2022-01-28 | Data sensing type welding centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220242351.3U CN216802288U (en) | 2022-01-28 | 2022-01-28 | Data sensing type welding centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216802288U true CN216802288U (en) | 2022-06-24 |
Family
ID=82065180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220242351.3U Active CN216802288U (en) | 2022-01-28 | 2022-01-28 | Data sensing type welding centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216802288U (en) |
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2022
- 2022-01-28 CN CN202220242351.3U patent/CN216802288U/en active Active
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