Automatic steel rail welding seam polishing equipment

Abstract

The utility model relates to automatic steel rail welding seam polishing equipment. Comprising a hydraulic station, two symmetrically-arranged abrasive belt warehouse devices and two symmetrically-arranged robots, belt sanders are installed at the ends of mechanical arms of the robots, and the abrasive belt warehouse devices replace grinding abrasive belts for the belt sanders; the device further comprises a front positioning device, a middle positioning device and a rear positioning device, the middle positioning device is located between the two abrasive belt library devices, and the rear positioning device is located between the two robots. The positioning device comprises a lower base and a door-shaped upper support, supporting rollers for supporting the steel rail are installed on the top of the lower base, and a hydraulic clamping assembly for clamping the steel rail and a guide wheel assembly for guiding the steel rail are installed on the lower base. A hydraulic pressing and holding assembly for pressing and holding a steel rail passing through the lower portion is installed on the upper support. According to the automatic steel rail welding seam polishing equipment, the manual polishing operation mode is replaced, polishing operation efficiency and operation quality are improved, labor cost is reduced, cost is reduced, and efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rail processing equipment, especially relates to an automatic rail weld polishing equipment. BACKGROUND

[0002] After the rail welding, rough grinding is needed to polish the protruding weld beads and weld ribs so that the external dimensions of the weld meet the requirements of subsequent process steps. The rough grinding process needs to polish the weld beads and weld ribs of the rail head, rail waist and rail bottom and meet the requirements of the operation guide. Due to the special shape of the rail cross section, the polishing process requires very high. Simple profiling automatic polishing equipment cannot identify and judge the polishing position, and cannot accurately control the polishing position and polishing thickness. Over-polishing or under-polishing occurs from time to time, and the polishing quality cannot meet the requirements of the rail welding base production standard. Therefore, manual polishing is still widely used in various rail welding bases, and there is a strong demand for fully automatic high-precision polishing equipment that can completely replace manual work.

[0003] In summary, an automatic rail weld polishing equipment needs to be developed and designed to replace manual polishing, improve polishing efficiency and quality, reduce labor costs and increase efficiency, and help the construction of intelligent rail welding bases. INVENTION CONTENTS

[0004] The utility model aims at providing an automatic rail weld polishing equipment to replace manual polishing, improve polishing efficiency and quality, and reduce labor costs and increase efficiency.

[0005] The utility model adopts the technical scheme: an automatic rail weld polishing equipment, comprising a hydraulic station, two symmetrical sand belt warehouse devices and two symmetrical robots, a sand belt machine device is installed at the end of the mechanical arm of the robot, and the sand belt warehouse device replaces the polishing sand belt for the sand belt machine device, comprising three positioning devices in front, middle and back, the middle positioning device is located between the two sand belt warehouse devices, and the rear positioning device is located between the two robots, the positioning device comprises a lower base and a door-shaped upper support, a supporting roller supporting the rail is installed on the top of the lower base, a hydraulic clamping assembly clamping the rail and a guide wheel assembly guiding the rail are installed on the lower base, and a hydraulic pressure holds the assembly that holds the rail that passes below is installed on the upper support.

[0006] Preferably, the supporting rollers are provided with front and rear two along the moving direction of the rail, and a hydraulic motor driving the active rotation of the supporting rollers is further included.

[0007] Preferably, a support plate with a notch in the middle is mounted on the front of the lower base, the guide wheel assembly comprises wheel supports mounted on the support plate on both sides of the notch, guide rollers are mounted on the two wheel supports, and the middle of the steel rail passes between the two guide rollers.

[0008] Preferably, the hydraulic clamping assembly comprises a first swing arm and a second swing arm arranged oppositely, the middle of both is fixedly mounted on the lower base through a rotating shaft, a tooth portion is arranged on the inner side of the middle of both the first swing arm and the second swing arm and meshes with each other, and the hydraulic clamping assembly further comprises a clamping hydraulic cylinder, the end of the cylinder body is hingedly connected with the first swing arm, and the end of the piston rod is hingedly connected with the second swing arm.

[0009] Preferably, a pad is mounted on the inner side of the upper end of both the first swing arm and the second swing arm, when the piston rod of the clamping hydraulic cylinder extends, the upper end of both the first swing arm and the second swing arm swings inward synchronously and the pad is pressed on the bottom edge of the steel rail.

[0010] Preferably, the hydraulic clamping assembly comprises a first swing arm and a second swing arm arranged oppositely, the middle of both is fixedly mounted on the lower base through a rotating shaft, a tooth portion is arranged on the inner side of the middle of both the first swing arm and the second swing arm and meshes with each other, and the hydraulic clamping assembly further comprises a clamping hydraulic cylinder, the end of the cylinder body is hingedly connected with the first swing arm, and the end of the piston rod is hingedly connected with the second swing arm.

[0011] Preferably, a pad is mounted on the inner side of the upper end of both the first swing arm and the second swing arm, when the piston rod of the clamping hydraulic cylinder extends, the upper end of both the first swing arm and the second swing arm swings inward synchronously and the pad is pressed on the bottom edge of the steel rail.

[0012] Preferably, the hydraulic clamping assembly comprises a first swing arm and a second swing arm arranged oppositely, the middle of both is fixedly mounted on the lower base through a rotating shaft, a tooth portion is arranged on the inner side of the middle of both the first swing arm and the second swing arm and meshes with each other, and the hydraulic clamping assembly further comprises a clamping hydraulic cylinder, the end of the cylinder body is hingedly connected with the first swing arm, and the end of the piston rod is hingedly connected with the second swing arm.

[0013] Preferably, the hydraulic clamping assembly comprises a first swing arm and a second swing arm arranged oppositely, the middle of both is fixedly mounted on the lower base through a rotating shaft, a tooth portion is arranged on the inner side of the middle of both the first swing arm and the second swing arm and meshes with each other, and the hydraulic clamping assembly further comprises a clamping hydraulic cylinder, the end of the cylinder body is hingedly connected with the first swing arm, and the end of the piston rod is hingedly connected with the second swing arm.

[0014] The automatic steel rail weld polishing equipment has the advantages and positive effects that:

[0015] The automatic steel rail weld polishing equipment has the advantages and positive effects that: The automatic steel rail weld polishing equipment has the advantages and positive effects that: BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic diagram of the utility model;

[0017] Figure 2 is Figure 1 is a structural schematic diagram of the sand belt warehouse device and the grinding device;

[0018] Figure 3 is Figure 1 is a structural schematic diagram of the positioning device, rear view;

[0019] Figure 4 is Figure 1 is a structural schematic diagram of the positioning device, front view.

[0020] In the drawings:

[0021] 1, hydraulic station; 2, guide wheel assembly; 3, positioning device; 3-1, bottom plate; 3-2, lower base; 3-3, support plate; 3-4, first swing arm; 3-5, clamping hydraulic cylinder; 3-6, second swing arm; 3-7, tooth part; 3-8, cushion block; 3-9, support roller; 3-10, upper support; 3-11, pressing hydraulic cylinder; 3-12, cushion plate; 4, first bottom platform; 5, sand belt warehouse device; 6, sand belt machine device; 7, rack; 8, second bottom platform; 9, robot; 10, dust suction assembly. DETAILED DESCRIPTION

[0022] In order to further understand the invention content, characteristics and effects of the utility model, the following examples are used for detailed description.

[0023] Please see Figure 1 The automatic steel rail weld polishing equipment comprises a hydraulic station 1, two symmetrically arranged sand belt warehouse devices 5 and two symmetrically arranged robots 9, a sand belt machine device 6 is installed at the mechanical arm end of the robot 9, and the sand belt machine device 6 is replaced by the sand belt warehouse device 5. Three positioning devices 3 are further included, the middle positioning device 3 is located between the two sand belt warehouse devices 5, and the rear positioning device 3 is located between the two robots 9.

[0024] The working principle is as follows:

[0025] The welded steel rail is threaded by the positioning device 3 and positioned by the positioning device 3, then the robot 9 performs spatial displacement on the sand belt machine device 6, the running sand belt machine device 6 performs polishing treatment on the specific position on the steel rail, the sand belt on the sand belt machine device 6 needs to be replaced after a certain period of use, the configured sand belt warehouse device 5 is used for storing and supplying the sand belt, when the sand belt needs to be replaced, the sand belt machine device 6 is displaced to the front of the sand belt warehouse device 5 to perform the sand belt replacement action.

[0026] The belt library device 5 and the belt machine device 6 are both existing devices, which are obtained by purchase. The specification of Chinese invention patent CN117900962A discloses a belt automatic replacement device, and the belt library device 5 used in the present patent has the same structure and operating principle as the belt automatic replacement device, which is not described in detail. The specification of Chinese invention patent CN116117642A discloses a force-controlled belt machine combined with an industrial robot, and the belt machine device 6 used in the present patent has the same structure and operating principle as the force-controlled belt machine, which is not described in detail.

[0027] In the present embodiment, the first bottom platform 4 and the second bottom platform 8 are also included, the two positioning devices 3 of the front part and the middle part are installed on the first bottom platform 1, the positioning device 3 of the rear part and the two robots 9 are installed on the second bottom platform 8, and the racks 7 are also arranged on both sides of the first bottom platform 4, and the two belt library devices 5 are respectively installed on the two racks 7.

[0028] The dust suction assembly 10 is also included, and the horn of the dust suction assembly 10 is installed at the end of the mechanical arm of the robot 9 and located at the side of the belt machine device 6. During the grinding operation, the dust suction assembly 10 sucks the dust generated by the grinding operation. Figure 3 and Figure 4 It can be seen that:

[0029] The positioning device 3 includes a lower base 3-2 and a door-shaped upper support 3-10, and a bottom plate 3-1 with mounting holes is arranged at the bottom of the lower base 3-2. The bottom plate 3-1 is bolted and fixed on the first bottom platform 4. The lower base 3-2 is a cage-shaped structure, which is welded by four metal side plates with windows arranged at the middle part. The top plates are welded and installed at the top of each metal side plate, and the bottom of the upper support 3-10 is fixedly connected with the top plates of the lower base 3-2 by bolts.

[0030] The support rollers 3-9 for supporting the steel rail are installed at the top of the lower base 3-2, the hydraulic clamping assembly for clamping the steel rail and the guide wheel assembly 2 for guiding the steel rail are installed on the lower base 3-2, and the hydraulic pressing assembly for pressing the passing steel rail below is installed on the upper support 3-10. When the steel rail moves, it is stably supported by the support rollers 3-9 and guided by the guide wheel assembly 2. After the steel rail stops, it is clamped and fixed by the hydraulic clamping assembly and pressed and fixed by the hydraulic pressing assembly during the grinding process.

[0031] In the present embodiment, the support rollers 3-9 are arranged in front of and behind the moving direction of the steel rail, and the hydraulic motor for driving the support rollers 3-9 to rotate is also included. In this way, the positioning device 3 has the function of driving and moving the steel rail. During operation, the hydraulic motor drives the support rollers 3-9 to rotate and stop, and the steel rail moves and stops along the length direction.

[0032] A support plate 3-3 with a notch in the middle is installed at the front of the lower base 3-2, the guide wheel assembly 2 includes wheel supports installed on the support plate 3-3 on both sides of the notch, guide rollers are installed on the two wheel supports, the steel rail passes through the notch and the middle part of the steel rail passes through between the two guide rollers.

[0033] In this embodiment, the hydraulic clamping assembly includes a first swing arm 3-4 and a second swing arm 3-6 arranged oppositely, the middle parts of the two are fixedly installed on the lower base 3-2 through a rotating shaft, a tooth part 3-7 that meshes with each other is arranged on the inner side of the middle part of the first swing arm 3-4 and the second swing arm 3-6, the first swing arm 3-4 and the second swing arm 3-6 are synchronized to swing through the cooperation of the tooth part 3-7. It also includes a clamping hydraulic cylinder 3-55, the end of the cylinder body is hingedly connected with the lower end of the first swing arm 3-4, and the end of the piston rod is hingedly connected with the lower end of the second swing arm 3-6. By controlling the piston rod of the clamping hydraulic cylinder 3-5 to extend and retract, the first swing arm 3-4 and the second swing arm 3-6 are swung to clamp or release the steel rail.

[0034] A pad 3-8 is installed on the inner side of the upper end of the first swing arm 3-4 and the second swing arm 3-6, when the piston rod of the clamping hydraulic cylinder 3-5 is extended, the upper ends of the first swing arm 3-4 and the second swing arm 3-6 are simultaneously swung inward and the pad 3-8 is pressed on the bottom edge of the steel rail. The pad 3-8 can be a rubber block, which serves as a gasket to avoid rigid impact between the upper ends of the first swing arm 3-4 and the second swing arm 3-6 and the steel rail, and at the same time, the pad 3-8 can improve the reliability and stability of clamping and positioning the steel rail.

[0035] In this embodiment, the hydraulic clamping assembly includes a clamping hydraulic cylinder 3-11 fixedly installed on the upper support 3-10, a pressing block is installed on the lower end of the piston rod of the clamping hydraulic cylinder 3-11, and when the piston rod of the clamping hydraulic cylinder 3-11 is extended, the pressing block is pressed on the top of the steel rail.

[0036] In this embodiment, a backing plate 3-12 is also installed on the support plate 3-3, the backing plate 3-12 includes a flat part and a downwardly bent part at the outer end, the inner end of the flat part is fixedly connected with the lower edge of the notch, and the steel rail passes above the backing plate 3-12.

Claims

1. An automated rail weld grinding apparatus characterized by: The device comprises a hydraulic station (1), two symmetrical sand belt warehouse devices (5) and two symmetrical robots (9), a sand belt machine device (6) is installed at the end of the mechanical arm of the robot (9), the sand belt warehouse device (5) replaces the grinding sand belt for the sand belt machine device (6); three positioning devices (3) are further included, the middle positioning device (3) is located between the two sand belt warehouse devices (5), and the rear positioning device (3) is located between the two robots (9); the positioning device (3) comprises a lower base (3-2) and a door-shaped upper support (3-10), a support roller (3-9) for supporting the steel rail is installed at the top of the lower base (3-2), a hydraulic clamping assembly for clamping the steel rail and a guide wheel assembly (2) for guiding the steel rail are installed on the lower base (3-2), and a hydraulic pressing assembly for pressing the passing steel rail is installed on the upper support (3-10).

2. The automated rail weld grinding apparatus of claim 1, wherein: The support roller (3-9) is provided with front and rear two rollers along the moving direction of the steel rail, and a hydraulic motor for driving the main rotation of the support roller (3-9) is further included.

3. The automated rail weld grinding apparatus of claim 2, wherein: A support plate (3-3) with a notch in the middle is installed at the front of the lower base (3-2), the guide wheel assembly (2) comprises wheel supports installed on the support plate (3-3) on both sides of the notch, guide rollers are installed on the two wheel supports, and the middle part of the steel rail passes between the two guide rollers.

4. The automated rail weld grinding apparatus of claim 3, wherein: The hydraulic clamping assembly comprises a first swing arm (3-4) and a second swing arm (3-6) arranged oppositely, the middle parts of the two swing arms are fixedly installed on the lower base (3-2) through a rotating shaft, tooth portions (3-7) meshing with each other are arranged on the inner sides of the middle parts of the first swing arm (3-4) and the second swing arm (3-6), and a clamping hydraulic cylinder (3-5) is further included, the end of the cylinder body of the clamping hydraulic cylinder (3-5) is hingedly connected with the first swing arm (3-4), and the end of the piston rod of the clamping hydraulic cylinder (3-5) is hingedly connected with the second swing arm (3-6).

5. The automated rail weld grinding apparatus of claim 4, wherein the at least one rail weld grinding head is mounted on the at least one rail weld grinding head carriage. The inner sides of the upper ends of the first swing arm (3-4) and the second swing arm (3-6) are both provided with a pad (3-8), when the piston rod of the clamping hydraulic cylinder (3-5) is extended, the upper ends of the first swing arm (3-4) and the second swing arm (3-6) are synchronously swung inward, and the pad (3-8) is pressed on the bottom edge of the steel rail.

6. The automated rail weld grinding apparatus of claim 5, wherein: The hydraulic pressing assembly comprises a pressing hydraulic cylinder (3-11) fixedly installed on the upper support (3-10), a pressing block is installed at the lower end of the piston rod of the pressing hydraulic cylinder (3-11), and when the piston rod of the pressing hydraulic cylinder (3-11) is extended, the pressing block is pressed on the top of the steel rail.

7. The automated rail weld grinding apparatus of claim 6, wherein the at least one rail weld grinding head is mounted on the at least one rail weld grinding head carriage. A backing plate (3-12) is further installed on the support plate (3-3), the backing plate (3-12) comprises a flat part and a downward bent part at the outer end, and the inner end of the flat part is fixedly connected with the lower edge of the notch.

8. The automated rail weld grinding apparatus of any one of claims 1 to 7, characterized by: A dust suction assembly (10) is further included, a horn of the dust suction assembly (10) is installed at the end of the mechanical arm of the robot (9) and located at the side of the sand belt machine device (6).

9. An automated rail weld grinding apparatus as claimed in any one of claims 1 to 7, characterised in that: It also comprises a first bottom platform (4) and a second bottom platform (8), the two positioning devices (3) of the front and middle parts are installed on the first bottom platform (4), the positioning device (3) of the rear part and the two robots (9) are installed on the second bottom platform (8), and racks (7) are arranged on both sides of the first bottom platform (4), and the two sand belt warehouse devices (5) are respectively installed on the two racks (7).

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