A spiral machine rotation axis automatic welding device

Abstract

The application provides a kind of automatic welding device of spiral machine rotating shaft, mainly relates to the field of welding.A kind of automatic welding device of spiral machine rotating shaft, including support seat, the chuck is rotationally arranged in one end of the support seat, the power mechanism for driving chuck is arranged on the support seat, the tailstock is arranged in the other end of the support seat, the support frame is arranged in one side of the support seat, the slide rail is horizontally arranged on the support frame, the centralizer base is slidably arranged on the slide rail, the buffer frame is arranged on the centralizer base, the buffer base is slidably arranged on the vertical guide rail, the lifting frame is arranged on the buffer base, the swing base is arranged on the lifting frame, the linear drive mechanism for driving the lifting frame sliding is arranged on the lifting frame, the angle adjuster is arranged on the swing base, the pressing base is arranged in the bottom of the centralizer base, the tensioning mechanism is arranged on the chuck.The beneficial effects of the application are that the automatic welding of spiral machine helical rod and helical piece can be completed, and the welding quality and welding efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding, in particular to a kind of automatic welding device of screwing machine rotating shaft. BACKGROUND

[0002] Screw type sludge dewatering machine is a kind of water treatment equipment widely used in municipal sewage treatment engineering and petrochemical, light industry, chemical fiber, papermaking, pharmaceutical, leather and other industrial industries. By configuring reagent, the dirt in sewage is precipitated, and the delivery space of sludge is reduced by gradually increasing the diameter of rotating shaft, so that the water in sludge is squeezed out, so that the water in sludge is sharply reduced, so that the subsequent treatment of sludge is facilitated.

[0003] Among them, the main action component of extrusion is the tapered screw rod with increasing diameter. At present, the processing of the screw rod is mainly to connect the spiral sheet and the tapered rotating shaft by welding. Since the screw rod has taper, the width of the spiral sheet itself also gradually decreases to adapt to the shape of the screw rod. In the welding process, the industry usually fixes the screw rod by supporting seat, and fixes the spiral sheet by manual spot welding, and then welds the joint between the spiral sheet and the screw rod. However, this welding method depends on the experience of the operator, and the quality of the welded screw rod is not uniform, and the workload is large and the welding efficiency is low. SUMMARY

[0004] To solve the problems of the prior art, the present application provides an automatic welding device for screwing machine rotating shaft, which can complete the automatic welding of screwing machine screw rod and spiral sheet, improve the welding quality and welding efficiency.

[0005] To achieve the above purpose, the following technical solutions are adopted:

[0006] An automatic welding device for screwing machine rotating shaft, comprising a supporting seat, a chuck is rotatably arranged at one end of the supporting seat, a power mechanism for driving the chuck is arranged on the supporting seat, a center is arranged at the other end of the supporting seat, the center is coaxial with the chuck, a supporting frame is arranged on one side of the supporting seat, a slide rail is horizontally arranged on the supporting frame, the slide rail is parallel to the axis of the center, a centralizing seat is slidably arranged on the slide rail, a buffer frame is arranged on the centralizing seat, the buffer frame comprises a vertical guide rail, a buffer seat is slidably arranged on the vertical guide rail, a buffer spring is arranged between the buffer seat and the centralizing seat, a lifting frame is arranged on the buffer seat, a swing seat is arranged on the lifting frame, a linear drive mechanism for driving the lifting frame to slide is arranged on the lifting frame, an angle adjuster is arranged on the swing seat, an elastic telescopic rod is arranged on the angle adjuster, a welding gun is arranged at the front end of the elastic telescopic rod, a pressing seat is arranged at the bottom of the centralizing seat, an upper pressing wheel and a pair of side pressing wheels are rotatably arranged at the bottom of the pressing seat, and a tensioning mechanism is arranged on the chuck.

[0007] The sliding rail is a groove type sliding rail, and the righting seat is provided with a wheel set matched with the sliding rail.

[0008] The fixed screw nut is arranged on the buffer seat, the lifting frame is slidably connected with the buffer seat, the driving screw rod is vertically arranged on the lifting frame, the driving screw rod penetrates through the fixed screw nut, and the screw motor matched with the driving screw rod is arranged on the top of the lifting frame.

[0009] The angle adjuster comprises an adjusting head and an adjusting disc, the adjusting head and the adjusting disc are coaxially arranged, the adjusting head is rotationally connected with the swing seat, screw holes are arranged on the swing seat, arc-shaped grooves corresponding to the screw holes are arranged on the adjusting disc, and the fastening bolt penetrating through the arc-shaped grooves is threadedly connected in the screw holes.

[0010] The adjusting head is provided with a penetrating mounting hole, and the elastic telescopic rod comprises a sliding rod slidably connected with the mounting hole and a telescopic spring sleeved on the sliding rod.

[0011] The insertion rod is arranged on the top of the pressing seat, the insertion hole matched with the insertion rod is arranged on the righting seat, the end of the insertion rod is provided with a threaded part, the pressing nut is arranged on the threaded part of the insertion rod penetrating through the insertion hole, and the pressing spring is sleeved on the insertion rod.

[0012] The pressing seat is provided with a support of a C-shaped structure with an opening downward, the upper pressing wheel is arranged in the C-shaped groove of the support, and the two side pressing wheels are symmetrically arranged on the side of the support.

[0013] The ring groove is arranged on the outer periphery of the upper pressing wheel.

[0014] The tensioning mechanism comprises a telescopic screw rod and a traction head, the telescopic screw rod is arranged on the end face of the chuck, and the traction head is arranged on the screw rod front end of the telescopic screw rod.

[0015] Compared with the prior art, the beneficial effects of the present application are:

[0016] The present application fixes the spiral shaft by matching the chuck with the tailstock, and completes the fixation of the spiral shaft and the spiral piece by pulling the spiral piece on the spiral shaft to be close to each other by the tensioning mechanism. Then, the welding gun can always feed along the weld to perform pressure welding by feeding the righting seat with the rotation of the spiral shaft, and finally the welding of the spiral shaft and the spiral piece is completed. The present application can complete the nearly full-automatic welding of the spiral shaft and the spiral piece, has higher welding efficiency and consistent welding quality. The present application provides a new welding method for the spiral shaft and the spiral piece, so that the welding of the spiral shaft of the spiral machine no longer depends on the welding experience of the operator, and the labor cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] ATTACHMENT Figure 1 It is the first perspective view of the present application.

[0018] Figure 2 is a schematic view of a second perspective view structure of the present application; Figure 2 Figure 3 is a schematic view of a main view structure of the present application;

[0019] Figure 4 is a schematic view of a use state reference view of the present application; Figure 3 Figure 5 is a schematic view of a partial enlarged structure of part A of the present application;

[0020] Figure 6 is a schematic view of a partial enlarged structure of part B of the present application; Figure 4 Figure 7 is a schematic view of a partial enlarged structure of part C of the present application;

[0021] Figure 8 is a schematic view of a partial enlarged structure of part D of the present application; Figure 5 Figure 9 is a schematic view of a partial enlarged structure of part E of the present application;

[0022] Figure 10 is a schematic view of a partial enlarged structure of part F of the present application; Figure 6 Figure 11 is a schematic view of a partial enlarged structure of part G of the present application;

[0023] Figure 12 is a schematic view of a partial enlarged structure of part H of the present application; Figure 7 Figure 13 is a schematic view of a partial enlarged structure of part I of the present application; Figure 14 is a schematic view of a partial enlarged structure of part J of the present application;

[0024] In the drawings: 1, support seat; 2, support frame; 3, centralizing seat; 4, buffer frame; 5, pressing seat; 6, tensioning mechanism; 7, hoisting mechanism; 11, chuck; 12, power mechanism; 13, center; 21, slide rail; 22, wheel set; 31, lifting frame; 32, oscillating seat; 33, linear drive mechanism; 34, angle adjuster; 35, elastic telescopic rod; 36, welding torch; 41, vertical guide rail; 42, buffer seat; 43, buffer spring; 51, upper pressing wheel; 52, side pressing wheel; 53, insertion rod; 54, pressing spring; 55, support; 61, telescopic screw rod; 62, traction head; 71, clamp head; 331, fixed screw nut; 332, drive screw; 333, screw motor; 341, adjustment head; 342, adjustment disc; 343, arc-shaped slot; 344, mounting hole; 351, slide rod; 352, telescopic spring. DETAILED DESCRIPTION

[0025] The present application will be further described in conjunction with the drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present application and not to limit the scope of the present application. Furthermore, it should be understood that after reading the content of the present application, those skilled in the art can make various modifications or changes to the present application, and these equivalent forms also fall within the scope defined by the present application.

[0026] As Figures 1-7As shown, the automatic welding device for the rotating shaft of the spiral machine comprises a support base 1, which is used as a supporting part of the welding device and supports each component. One end of the support base 1 is rotatably connected to a chuck 11, and a power mechanism 12 for driving the chuck 11 is arranged on the support base 1. Specifically, the power mechanism 12 is a motor, which drives the chuck 11 to rotate through a belt transmission device. The other end of the support base 1 is connected to a center 13, which is coaxial with the chuck 11. The chuck 11 clamps the large-diameter end of the spiral shaft, and the center 13 clamps the small-diameter end of the spiral shaft. The rotation of the chuck 11 driven by the motor can realize the rotation of the spiral shaft.

[0027] A support frame 2 is arranged on one side of the support base 1, and a sliding rail 21 is horizontally arranged on the support frame 2, which is parallel to the axis of the center 13. A righting base 3 is slidably arranged on the sliding rail 21, which is used as a carrier of a welding gun 36 and slides on the sliding rail 21 along with the rotation of the spiral shaft, thereby following the position of the welding point. Specifically, the sliding rail 21 is a groove-type sliding rail, and a wheel set 22 is arranged on the righting base 3 and matched with the sliding rail 21. The cooperation between the wheel set 22 and the sliding rail 21 can reduce the friction between the righting base 3 and the sliding rail 21, thereby ensuring the smooth sliding of the righting base 3 on the sliding rail 21.

[0028] A buffer frame 4 is arranged on the righting base 3, which comprises a vertical guide rail 41, a buffer base 42 is slidably arranged on the vertical guide rail 41, and a buffer spring 43 is arranged between the buffer base 42 and the righting base 3. The buffer base 42 can maintain the pressure of the welding gun 36 while pressure welding is performed, so that the welding gun 36 can stably contact the weld. A lifting frame 31 is arranged on the buffer base 42, and a linear driving mechanism 33 for driving the lifting frame 31 to slide is arranged on the lifting frame 31. The linear driving mechanism 33 can drive the lifting frame 31 to lift, thereby adapting the change of the diameter of the spiral shaft and maintaining the contact between the welding gun 36 and the weld. Specifically, a fixed screw nut 331 is bolted on the buffer base 42, the lifting frame 31 is slidably connected to the buffer base 42, a driving screw 332 is perpendicularly rotatably arranged on the lifting frame 31, the driving screw 332 penetrates through the fixed screw nut 331, and a screw motor 333 matched with the driving screw 332 is arranged on the top of the lifting frame 31. The rotation of the screw motor 333 drives the rotation of the driving screw 332. Since the fixed screw nut 331 is in a fixed state, the rotation of the driving screw 332 can make the lifting frame 31 slide in the vertical direction under the cooperation of the driving screw 332 and the fixed screw nut 331.

[0029] The lifting frame 31 is provided at the bottom with a swing base 32, and an angle adjuster 34 is arranged on the swing base 32, which can adjust the angle of a welding gun 36, so that the welding gun 36 can adapt to the position of a weld. An elastic telescopic rod 35 is arranged on the angle adjuster 34, and the welding gun 36 is arranged at the front end of the elastic telescopic rod 35. Specifically, the angle adjuster 34 comprises an adjusting head 341 and an adjusting disc 342, the adjusting head 341 and the adjusting disc 342 are coaxially arranged, the adjusting head 341 is rotationally connected with the swing base 32, and the angle of the welding gun 36 can be adjusted by rotating the adjusting head 341. A screw hole is formed in the swing base 32, an arc-shaped slot 343 corresponding to the screw hole is formed in the adjusting disc 342, and a fastening bolt passing through the arc-shaped slot 343 is threadedly connected in the screw hole. The adjusting disc 342 can be fixed by fastening the fastening bolt, so that the angle of the welding gun is fixed. An installation hole 344 is formed in the adjusting head 341, the elastic telescopic rod 35 comprises a sliding rod 351 slidably connected with the installation hole and a telescopic spring 352 sleeved on the sliding rod 351, when the welding gun 36 contacts the weld for welding, the sliding rod 351 can keep the continuous pressure on the weld under the action of the spring 352, and the welding gun 361 can adapt to the change of the diameter of the screw shaft in the welding process by the sliding installation of the sliding rod 351.

[0030] The pressing seat 5 is installed at the bottom of the righting seat 3, and the upper pressing wheel 51 and a pair of side pressing wheels 52 are rotatably arranged at the bottom of the pressing seat 5. The upper pressing wheel 51 cooperates with the side pressing wheels 52 to be in contact with the spiral blade, and the righting seat 3 can be driven to slide along the slide rail 21 with the rotation of the spiral shaft. Specifically, the pressing seat 5 is installed with a C-shaped bracket 55 with an opening downward at the bottom, and the bracket 55 serves as a mounting bracket of the upper pressing wheel 51 and the two side pressing wheels 52. The upper pressing wheel 51 is rotatably arranged in the C-shaped groove of the bracket 55, and the two side pressing wheels 52 are symmetrically arranged at the sides of the bracket 55. In use, the upper pressing wheel 51 is in contact with the side edge of the spiral blade to press the spiral blade and make it closely contact with the spiral shaft, thereby facilitating subsequent welding. The two side pressing wheels 52 are limitingly arranged at the two sides of the spiral blade to drive the righting seat 3 to move along the slide rail 21 when the spiral blade rotates with the spiral shaft, so that the welding gun 36 can keep in contact with the weld to complete the pressure welding. More specifically, the upper pressing wheel 51 has a ring groove on the outer periphery, and the ring groove is larger than the thickness of the spiral blade, so that the ring groove can limit and press the side edge of the spiral blade with a certain arc twist. Specifically, in order to ensure the pressing effect of the pressing seat 5 on the spiral blade, an insertion rod 53 is arranged at the top of the pressing seat 5, an insertion hole is arranged on the righting seat 3 and matched with the insertion rod 53, a threaded portion is arranged at the end of the insertion rod 53, a pressing nut is arranged on the threaded portion penetrating the insertion hole, and a pressing spring 54 is sleeved on the insertion rod 53. The pre-tightening force of the pressing spring 54 can be adjusted by fastening the pressing nut, so as to adjust the pressing effect on the spiral blade.

[0031] The tensioning mechanism 6 is arranged on the chuck 11 and used for tensioning the spiral blade to make the spiral blade closely contact with the surface of the tapered spiral shaft. More specifically, the winch mechanism 7 is arranged on the support seat 1 at the rear side of the chuck 11, and the front end of the winch rope of the winch mechanism 7 is connected with the clamp head 71 which can be clamped at the end of the spiral blade. The winch mechanism can pull the spiral blade to closely contact with the spiral shaft for subsequent fixation of the tensioning mechanism 6. Specifically, the tensioning mechanism 6 includes the telescopic screw rod 61 and the traction head 62. The telescopic screw rod 61 includes a screw cylinder arranged at the end face of the chuck 11 and a screw rod threadedly connected with the screw cylinder. The handle is arranged at the front side of the screw rod. The traction head 62 is rotatably arranged at the front end of the screw rod of the telescopic screw rod 61 by a ball head, and the traction head 62 is an electromagnet. The end of the spiral blade can be adsorbed and fixed by the traction head 62, and the length of the telescopic screw rod 61 can be adjusted to adjust the tensioning degree of the spiral blade, so that the spiral blade closely contacts with the spiral shaft.

[0032] In this embodiment, the power mechanism 12, the linear drive mechanism and the welding machine of the welding torch are all controlled by the controller. The controller adjusts the rotating speed of the power mechanism 12 and controls the intermittent feeding of the linear drive mechanism.

[0033] The outer diameter of the spiral blade is consistent on the rotating shaft of the stacked screw sludge dewatering machine, and the inner diameter of the spiral shaft increases from the front end to the rear end. Therefore, the inner diameter of the spiral blade matches the diameter of the spiral shaft and increases from the front end to the rear end. When the device is in use, only the large-diameter end of the spiral blade needs to be pulled tight by the tensioning mechanism 6 so that the spiral blade is pulled to tightly adhere to the spiral shaft, and the inner side of the spiral blade is adhered to the position to be welded.

[0034] When the device is in use, the small-diameter end of the spiral blade is first spot-welded and fixed to the small-diameter end of the spiral shaft, and then the spiral shaft is lifted and fixed between the chuck 11 and the center 13 by the lifting tool. Subsequently, according to the time sequence, the operation process of the device is as follows: first, pull the spiral blade to the large-diameter end of the spiral shaft, and clamp and fix the end of the spiral blade by the tensioning mechanism 6. The centralizer 3 is moved to the end of the slide rail 21, the height of the welding torch 36 is adjusted by the controller controlling the linear drive mechanism 33, the angle of the angle adjuster 34 is adjusted, the welding torch 36 is pressed to adhere to the weld between the spiral blade and the spiral shaft, the upper pressing wheel 51 is pressed against the side of the spiral blade, the pre-tightening force of the pressing spring 54 is adjusted to make the upper pressing wheel 51 apply appropriate pressure to the spiral blade to make the spiral blade adhere to the outer wall of the spiral shaft, and at the same time, the side pressing wheels 52 on both sides are fixed to the two sides of the spiral blade to limit the position. Then the controller controls the power mechanism 12 to start, driving the spiral shaft and the spiral blade to rotate as a whole. With the rotation of the spiral blade, the two side pressing wheels drive the centralizer 3 to slide to the large-diameter end of the slide rail 21, and during this period, the welding torch 36 maintains the continuous pressure on the weld under the action of the buffer spring 43 and the extension spring 352, and the pressure welding is completed. With the movement of the welding torch to the large-diameter end of the spiral shaft, the controller controls the intermittent start of the linear drive mechanism, so that the lifting frame 31 moves vertically upward intermittently, during which part of the elastic force of the buffer spring 43 is released, but the pressure contact between the welding torch 36 and the weld is always maintained. After the welding torch 36 completes the welding of the entire weld, the controller controls the power mechanism 12 to stop, and the linear drive mechanism 33 drives the lifting frame 31 to the highest position to make the welding torch 36 separate from the weld, and releases the pressure of the pressing seat 5 to make the side pressing wheels 52 separate from the contact with the spiral blade. Finally, the hoisted shaft body is lifted and removed.

Claims

1. A device for automatic welding of the shaft of a spiral bevel gear cutting machine, comprising a support base (1), characterized in that: The support seat (1) is rotatably provided with a chuck (11) at one end, a power mechanism (12) for driving the chuck (11) is arranged on the support seat (1), a center (13) is arranged at the other end of the support seat (1), the center (13) is coaxial with the chuck (11), a support frame (2) is arranged on one side of the support seat (1), a slide rail (21) is horizontally arranged on the support frame (2), the slide rail (21) is parallel to the axis of the center (13), a centralizing seat (3) is slidably arranged on the slide rail (21), a buffer frame (4) is arranged on the centralizing seat (3), the buffer frame (4) comprises a vertical guide rail (41), a buffer seat (42) is slidably arranged on the vertical guide rail (41), a buffer spring (43) is arranged between the buffer seat (42) and the centralizing seat (3), a lifting frame (31) is arranged on the buffer seat (42), a fixed lead screw nut (331) is arranged on the buffer seat (42), the lifting frame (31) is slidably connected with the buffer seat (42), a drive lead screw (332) is vertically rotatably arranged on the lifting frame (31), the drive lead screw (332) penetrates through the fixed lead screw nut (331), a lead screw motor (333) matched with the drive lead screw (332) is arranged on the top of the lifting frame (31); an oscillating seat (32) is arranged on the lifting frame (31), a linear drive mechanism (33) for driving the lifting frame (31) to slide is arranged on the lifting frame (31), an angle adjuster (34) is arranged on the oscillating seat (32), an elastic telescopic rod (35) is arranged on the angle adjuster (34), a welding gun (36) is arranged at the front end of the elastic telescopic rod (35), the angle adjuster (34) comprises an adjusting head (341) and an adjusting disc (342), the adjusting head (341) and the adjusting disc (342) are coaxially arranged, the adjusting head (341) is rotatably connected with the oscillating seat (32), a screw hole is arranged on the oscillating seat (32), an arc-shaped groove (343) corresponding to the screw hole is arranged on the adjusting disc (342), a fastening bolt penetrating through the arc-shaped groove (343) is threadedly connected in the screw hole, an installation hole (344) penetrating through the adjusting head (341) is arranged on the adjusting head (341), the elastic telescopic rod (35) comprises a sliding rod (351) slidably connected with the installation hole and a telescopic spring (352) sleeved on the sliding rod (351);The bottom of the righting seat (3) is provided with a pressing seat (5), the bottom of the pressing seat (5) is rotatably provided with an upper pressing wheel (51) and a pair of side pressing wheels (52), the upper pressing wheel (51) is attached to the side of the spiral piece, the spiral piece is pressed, the spiral piece is tightly attached to the spiral shaft, the two side pressing wheels (52) are limitingly installed on the two sides of the spiral piece, when the spiral piece rotates with the spiral shaft, the righting seat (3) is driven to move along the slide rail (21), the welding gun (36) can keep in contact with the weld to complete the pressure welding, the upper pressing wheel (51) has a ring groove on the outer periphery, the ring groove is larger than the thickness of the spiral piece, the chuck (11) is provided with a tensioning mechanism (6), the tensioning mechanism (6) comprises a telescopic screw rod (61) and a traction head (62), the telescopic screw rod (61) is arranged on the end face of the chuck (11), and the traction head (62) is arranged on the screw rod front end of the telescopic screw rod (61).

2. A spiral-winding machine shaft automatic welding device according to claim 1, characterized in that: The sliding rail (21) is a groove type sliding rail, and the centralizer (3) is provided with a wheel set (22) matched with the sliding rail (21).

3. The automatic welding device for the rotating shaft of a spiral-wound machine according to claim 1, characterized in that: The top of the pressing seat (5) is provided with an inserting rod (53), the centralizer (3) is provided with an inserting hole matched with the inserting rod (53), the end of the inserting rod (53) is provided with a threaded part, a pressing nut is mounted on the threaded part of the inserting rod (53) penetrating the inserting hole, and the inserting rod (53) is sleeved with a pressing spring (54).

4. The automatic welding device for the rotating shaft of a spiral-wound machine according to claim 1, characterized in that: The bottom of the pressing seat (5) is provided with a "C" type support (55) with an opening downward, the upper pressing wheel (51) is arranged in the "C" type groove of the support (55), and the two side pressing wheels (52) are symmetrically arranged on the side of the support (55).

5. A spiral-winding machine spindle automatic welding device according to claim 4, characterized in that: The outer periphery of the upper pressing wheel (51) is provided with an annular groove.

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