TIG (Tungsten Inert Gas) surfacing positioning device for metal valve sealing surface additive manufacturing

Abstract

The utility model discloses a TIG (Tungsten Inert Gas) surfacing positioning device for metal valve sealing surface additive manufacturing, which comprises a clamp, the clamp is connected with a welding gun driving device, the welding gun driving device is detachably connected onto a horizontal telescopic device, a telescopic pipe is arranged above the clamp, one end of the telescopic pipe is positioned in a pipe sleeve, the other end of the telescopic pipe is movably connected with a bracket, and the bracket is connected with a welding gun. The support is connected with a laser distance measuring sensor, the laser distance measuring sensor is connected with a controller, the rotating angle of the support ranges from 90 degrees to 180 degrees, and the horizontal telescopic device is a double-acting air cylinder. The weight of moving parts is greatly reduced, so that the driving energy consumption is reduced, and when the air cylinder breaks down, only the air cylinder needs to be replaced or maintained.

Description

Technical Field

[0001] The utility model belongs to the field of valve processing, and particularly relates to a TIG surfacing positioning device for additive manufacturing of a metal valve sealing surface. Background Art

[0002] The Chinese patent "An adjustable surfacing machine" (publication number: 218946612U) published on May 2, 2023, the patented technical solution includes: a base, a welding positioner, a support, a column and a cross frame, the welding positioner is provided with a chuck, the column is provided with a slide, the front of the column is provided with two sets of slide rails, the slide can reciprocate up and down on the slide rails, the cross frame can reciprocate left and right on the slide, an adjustment mechanism is provided between the support and the column, and the adjustment mechanism includes two sets of adjustment components and a connecting component. During the surfacing process, the cross frame needs to reciprocate for a long time. Due to the large mass of the cross frame, a high-power drive motor is required to drive the reciprocating work of the cross frame, which consumes a lot of energy. In addition, the long-term reciprocating work causes the drive components to wear out quickly and the accuracy decreases, which is laborious and time-consuming to repair. At the same time, for the position of the surfacing workpiece in the welding positioner, it can only be ensured to be concentric with the welding converter by measurement, and it is difficult to detect errors in time. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a TIG surfacing positioning device for additive manufacturing of metal valve sealing surfaces, which solves the problems in the prior art of high energy consumption caused by the need to swing the entire cross frame for surfacing welding of the valve sealing surface, troublesome maintenance after wear, and difficulty in quickly discovering workpiece placement errors.

[0004] In order to solve the above technical problems, the utility model adopts a technical solution including: a clamp, the clamp is connected to a welding gun driving device, the welding gun driving device is detachably connected to a horizontal telescopic device, a telescopic tube is arranged above the clamp, one end of the telescopic tube is located in a pipe sleeve, the other end of the telescopic tube is movably connected to a bracket, a laser ranging sensor is connected to the bracket, the laser ranging sensor is connected to a controller, the rotation angle of the bracket is from 90 degrees to 180 degrees, and the horizontal telescopic device is a double-acting cylinder.

[0005] The bracket includes an upper plate and a vertical plate. The upper plate is provided with a slot, and a top plate is provided in the slot. The top plate is connected to the laser ranging sensor. The bracket is hinged to the telescopic tube. A positioning plate is provided at the rear of the bracket, and a magnet is provided at the upper end of the positioning plate.

[0006] A rotating disk with an adjustable angle is arranged below the clamp.

[0007] The horizontal telescopic device is connected to the vertical lifting device.

[0008] The horizontal telescopic device comprises: a horizontal telescopic drive device connected to a horizontal frame, the horizontal telescopic drive device is connected to a horizontal screw rod, the horizontal screw rod is movably connected to a mobile platform, and the mobile platform is connected to a welding gun drive device.

[0009] The vertical lifting device comprises: a base, a column connected to the base, a rack connected to the column, an outer sleeve mounted outside the column, a lifting gear arranged inside the outer sleeve, the lifting gear meshing with the rack, and the lifting gear connected to the lifting drive device.

[0010] The horizontal telescopic driving device and the lifting driving device are also connected to the controller.

[0011] The adjustable angle turntable is provided with a turntable rotation driving device, and the turntable rotation driving device is connected to a controller.

[0012] The adjustable angle turntable is provided with a turntable translation device.

[0013] The turntable translation device comprises: a turntable driving screw rod, the turntable driving screw rod is connected to the turntable translation driving device, the turntable driving screw rod is movably connected to the turntable platform, and the turntable platform is connected to the angle-adjustable turntable.

[0014] The utility model drives the TIG welding gun to reciprocate by arranging a cylinder on the horizontal telescopic device. Since the reciprocating motion is only for the fixture and the TIG welding gun, the weight of the moving parts is greatly reduced, thereby reducing the energy consumption of the drive. When the cylinder fails, only the cylinder needs to be replaced or repaired, which greatly reduces the workload and time of maintenance. At the same time, a laser distance sensor is connected to the bracket to measure the workpiece to be welded to ensure that the error in the welding position is within a preset range, thereby greatly improving the position accuracy of the surfacing. Secondly, the laser distance sensor can also provide surfacing thickness data by comparing the height of the workpiece before and after surfacing, thereby detecting whether the surfacing meets the quality requirements, greatly reducing the detection time and improving the detection accuracy. Thirdly, the rotation angle of the bracket is from 90 degrees to 180 degrees, so as to adapt to the measurement of horizontally placed, inclined and vertically placed workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of an implementation method of the utility model. Figure 2 for Figure 1 The enlarged view of point A in the middle. Figure 3 This is a front view of the angle-adjustable turntable according to an embodiment of the utility model. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0017] like Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model shown includes: a clamp 1, which is composed of two left and right clips, which are connected by bolts, and the left and right clips are respectively provided with semicircular grooves, and the two semicircular grooves are matched to form a through hole for connecting a TIG welding gun 2. The clamp 1 is connected to a welding gun driving device 3, and the welding gun driving device 3 is detachably connected to a horizontal telescopic device 4. The welding gun driving device 3 is a double-acting cylinder, and the two air holes of the double-acting cylinder are respectively connected to a solenoid valve. The horizontal telescopic device 4 is connected to a vertical lifting device 5. The horizontal telescopic device 4 includes: a horizontal frame, the horizontal frame is connected to a horizontal telescopic driving device, the horizontal telescopic driving device is connected to a horizontal screw rod, the horizontal screw rod is movably connected to a mobile platform, the mobile platform is connected to a welding gun driving device, the mobile platform is connected to a horizontal slider, the horizontal slider is movably connected to a horizontal track, and the horizontal track is connected to the horizontal frame. The vertical lifting device 5 includes: a base, a column connected to the base, an outer sleeve mounted outside the column, a rack connected to one side of the column, a vertical guide rail connected to the other side of the column, a vertical slider movably connected to the vertical guide rail, the vertical slider is connected to the outer sleeve, a lifting gear is provided in the outer sleeve 501, the lifting gear meshes with the rack 502, the lifting gear is connected to the lifting drive device, and the lifting drive device is located outside the outer sleeve. The telescopic drive device and the lifting drive device are servo motors, and the solenoid valve of the welding gun drive device, the horizontal telescopic drive device and the lifting drive device are also connected to the controller. The controller controls the two solenoid valves to alternately ventilate the double-acting cylinders, thereby realizing the reciprocating motion of the welding gun drive device. The controller is a PLC controller.

[0018] A telescopic tube 6 is provided on one side of the upper part of the clamp 1, one end of the telescopic tube 6 is located in the pipe sleeve 7, and the telescopic tube 6 can move horizontally along the sleeve 7. The other end of the telescopic tube 6 is movably connected to the bracket 8, and the laser distance sensor 9 is connected to the bracket 8. The laser distance sensor is connected to the controller, and the rotation angle of the bracket is from 90 degrees to 180 degrees. The bracket is L-shaped, and the bracket 8 includes an upper plate 801 and a vertical plate 802. The upper plate 801 is provided with a slot, and a top plate 803 is provided in the slot. The top plate 803 is connected to the laser distance sensor 9. The lower part of the bracket is hinged to the bracket bottom plate 804, and the bracket bottom plate 804 is connected to the telescopic tube 6. A positioning plate 805 is provided at the rear of the bracket, and a magnet 806 is provided at the upper end of the positioning plate 805. When the bracket is flipped upward by 90 degrees from the horizontal position, the magnet sucks the bracket to prevent it from falling, so as to measure the valve set at an angle or vertically, and measure the height from the surfacing position to the laser distance sensor. When the bracket is tilted to 180 degrees, the sealing surface of the horizontally placed valve seat ring can be processed. At this time, the top plate needs to be pulled down into the valve seat ring to measure the distance between the laser ranging sensor and the inner wall of the valve ring.

[0019] An adjustable angle turntable 10 is provided below the fixture, and the adjustable angle turntable is provided with a turntable rotation drive device and a turntable angle rotation drive device. The turntable rotation drive device includes: a rotating ring gear, the rotating ring gear meshes with a turbine, the turbine is connected to a turntable drive servo motor, and the turntable drive servo motor is connected to a controller. The adjustable angle turntable is provided with a turntable translation device, and the turntable translation device includes: a turntable drive screw, the turntable drive screw is connected to the turntable translation drive device, the turntable drive screw is movably connected to a turntable platform, and the turntable platform is connected to an adjustable angle turntable. The turntable angle rotation drive device includes: a rotating arm 101, one end of the rotating arm is connected to an angle adjustment gear, the angle adjustment gear meshes with an angle drive gear, the angle drive gear is connected to an angle drive servo motor, the angle drive servo motor is connected to a controller, the turntable rotation drive device is connected to the rotating arm, and the turntable rotation drive device is connected to a turntable 102.

[0020] When the utility model is working, the controller controls the rotation angle of the angle-driven servo motor, thereby controlling the tilt angle of the turntable with an adjustable angle, then the valve component is placed on the turntable with an adjustable angle and tightened, then the controller controls the extension and extension and lifting positions of the horizontal telescopic drive device and the lifting drive device, so that the TIG welding gun is aligned with the sealing surface of the valve component, and the position of the bracket is adjusted so that the laser distance sensor detects the position information, then the turntable is started to drive the servo motor to rotate the turntable, the servo motor drives the valve component to rotate one circle, and the laser distance sensor is used to detect whether the position of the valve component is appropriate with the TIG welding gun, if the position is inappropriate, the corresponding position of the rotation angle is recorded, and then the valve component at the corresponding position is adjusted, if the position is appropriate, the controller starts the reciprocating motion of the welding gun drive device, thereby starting to perform surfacing welding on the sealing surface of the valve component, after the surfacing welding is completed, the turntable with an adjustable angle continues to rotate, and the laser distance sensor is used to detect the data after the surfacing welding, and the data before the surfacing welding and the data after the surfacing welding are compared to obtain the detection result of whether the surfacing thickness is qualified.

Claims

1. A TIG surfacing positioning device for additive manufacturing of a metal valve sealing surface, comprising: The clamp is connected to the welding gun drive device, and is characterized in that the welding gun drive device is detachably connected to the horizontal telescopic device, a telescopic tube is provided above the clamp, one end of the telescopic tube is located in the pipe sleeve, and the other end of the telescopic tube is movably connected to the bracket, the bracket is connected to a laser ranging sensor, the laser ranging sensor is connected to a controller, the rotation angle of the bracket is from 90 degrees to 180 degrees, and the horizontal telescopic device is a double-acting cylinder.

2. The TIG cladding positioning device for additive manufacturing of metal valve sealing surfaces according to claim 1, characterized in that: The bracket includes an upper plate and a vertical plate. The upper plate is provided with a slot, and a top plate is provided in the slot. The top plate is connected to the laser ranging sensor. The bracket is hinged to the telescopic tube. A positioning plate is provided at the rear of the bracket, and a magnet is provided at the upper end of the positioning plate.

3. The TIG cladding positioning device for additive manufacturing of metal valve sealing surface according to claim 2, characterized in that: An angle-adjustable turntable is provided below the clamp.

4. The TIG surfacing positioning device for additive manufacturing of metal valve sealing surface according to claim 2, characterized in that: The horizontal telescopic device is connected to the vertical lifting device.

5. The TIG cladding positioning device for additive manufacturing of metal valve sealing surfaces according to any one of claims 1 to 4, characterized in that: The horizontal telescopic device comprises: a horizontal telescopic drive device connected to a horizontal frame, the horizontal telescopic drive device is connected to a horizontal screw rod, the horizontal screw rod is movably connected to a mobile platform, and the mobile platform is connected to a welding gun drive device.

6. The TIG cladding positioning device for additive manufacturing of metal valve sealing surfaces according to claim 4, characterized in that: The vertical lifting device comprises: a base, a column connected to the base, a rack connected to the column, an outer sleeve mounted outside the column, a lifting gear arranged inside the outer sleeve, the lifting gear meshing with the rack, and the lifting gear connected to the lifting drive device.

7. The TIG surfacing positioning device for additive manufacturing of metal valve sealing surfaces according to claim 5, characterized in that: The horizontal telescopic driving device and the lifting driving device are also connected to the controller.

8. The TIG cladding positioning device for additive manufacturing of metal valve sealing surfaces according to claim 3, characterized in that: The adjustable angle turntable is provided with a turntable rotation driving device, and the turntable rotation driving device is connected to a controller.

9. The TIG surfacing positioning device for additive manufacturing of metal valve sealing surfaces according to claim 8, characterized in that: The adjustable angle turntable is provided with a turntable translation device.

10. The TIG cladding positioning device for additive manufacturing of metal valve sealing surfaces according to claim 9, characterized in that: The turntable translation device comprises: a turntable driving screw rod, the turntable driving screw rod is connected to the turntable translation driving device, the turntable driving screw rod is movably connected to the turntable platform, and the turntable platform is connected to the angle-adjustable turntable.

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