CN112756910B - Winding device and method for welding type multi-head spiral drill rod - Google Patents
Winding device and method for welding type multi-head spiral drill rod Download PDFInfo
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- CN112756910B CN112756910B CN202011560313.4A CN202011560313A CN112756910B CN 112756910 B CN112756910 B CN 112756910B CN 202011560313 A CN202011560313 A CN 202011560313A CN 112756910 B CN112756910 B CN 112756910B
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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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention discloses a winding device and a method of a welding type multi-head spiral drill rod, which comprises a lathe, a faceplate arranged on a main shaft of the lathe, a fin clamp arranged on the faceplate, and two supporting plate clamps arranged on a base of the lathe; the variability of parameters such as screw pitches and the like is realized by adjusting the angle of the supporting plate clamp of the wound fin, the relative positions of the two fin clamps, the rotating speed of the rotating shaft and the moving speed of the supporting plate clamp; meanwhile, the double-helix drill rod can be conveniently wound; the spiral wing is directly wound on the drill rod and is fixed on the lathe in a spot welding mode, so that the requirements of the joint precision of the drill rod and the wing, the final pitch precision and the like can be met. The method has the advantages of simple and convenient operation, high processing precision, high efficiency and low cost.
Description
Technical Field
The invention belongs to the field of winding of spiral drill pipes, relates to a winding device of spiral drill pipes, and particularly relates to a winding device and method of a welding type multi-head spiral drill pipe.
Background
The spiral drilling technology becomes a main technical means for gas extraction and drilling of the soft outburst coal seam. The spiral drill rod is an important tool for spiral drilling and is divided into a welding type spiral drill rod and an integral type spiral drill rod according to the processing mode of the spiral drill rod, wherein the welding type spiral drill rod is formed by welding a split spiral wing and a core rod. The spiral wing piece of the welding type spiral drill rod is formed by winding a steel belt on a datum drill rod by utilizing a lathe. And after the spiral wing sheets are wound and formed, the spiral wing sheets and the spiral drill rod core rod form a complete spiral drill rod through a welding method. The welded auger stem includes a single auger stem and a double auger stem, the latter being more difficult to produce. The special spiral drill rod winding device is developed, winding work of two spiral drill rods can be achieved, and the spiral drill rod is significant in guaranteeing high precision, high yield and high production efficiency.
The processing precision of the spiral wing is not only related to the characteristics of the steel strip, but also related to the winding precision. The wing presss from both sides the wing on the knife rest in past production auger stem, utilize the lead screw to drive the big planker displacement, the lead hoop the wing on the core bar according to the requirement, then take off the wing cover and weld on the drilling rod body of rod, this kind of spiral wing's winding mode can coil a shaping spiral wing at every turn, efficiency is not high, and the wing is easy the sideslip when having the welding, the pitch is inhomogeneous, the great scheduling problem in gap between wing and the core bar, lead to the yield low, there is great influence to the welding quality of later stage auger stem, and can't adopt weldment work station to carry out the wing welding. Because two spiral wing panels can not be simultaneously wound by the spiral wing panel winding mode, when the double-helix drill rod is manufactured, the two spiral wing panels can only be manually assembled outside the core rod and then welded, the distance between the two spiral wing panels is difficult to grasp, the efficiency is low, the integral welding quality of the spiral drill rod is difficult to guarantee, and the powder discharge effect of the spiral drill rod is greatly influenced.
Disclosure of Invention
Aiming at the defects and shortcomings in the prior art, the invention provides a winding device and method of a welding type multi-head spiral drill rod, and aims to solve the problems that the welding type spiral drill rod in the prior art is low in machining precision and the like.
In order to achieve the purpose, the invention adopts the following technical scheme:
a winding device of a welding type multi-head spiral drill rod comprises a lathe, a faceplate arranged on a main shaft of the lathe, a fin clamp arranged on the faceplate, and two supporting plate clamps arranged on a base of the lathe;
the lathe comprises a base, the headstock and the tailstock which are arranged at the two ends of the base, the main shaft arranged on the headstock, and a rotating center arranged on the tailstock, wherein the rotating center is coaxially opposite to the main shaft; the base is provided with two parallel guide rails, the guide rails are provided with supporting plates, a lead screw parallel to the guide rails is arranged below the guide rails and penetrates through the supporting plates, and the rotation of the lead screw can drive the supporting plates to move along the guide rails;
the flower disc is coaxial with the main shaft and can rotate along with the main shaft, a plurality of radial through grooves are formed in the flower disc, a tip opposite to the rotating tip is arranged in the center of the flower disc, a drill rod is installed between the tip and the rotating tip, and the drill rod is parallel to the guide rail;
the fin clamp comprises a clamp body, a screw rod, a nut, a pressure head and a fin cushion block; the clamp body is of a cuboid shell structure, one surface of the clamp body is provided with an opening, and the clamp body comprises a bottom surface opposite to the opening, a first side plate and a second side plate which are positioned on two sides of the bottom surface, and two pulling plates which are positioned on the other two sides of the bottom surface; the nut is fixed on the inner wall of the first side plate, the screw is perpendicular to the first side plate and sequentially penetrates through the first side plate and the nut to extend into the clamp body, the pressure head is installed at the end part of the screw in the clamp body, and the pressure head can rotate circumferentially relative to the screw; the fin cushion block is fixed on the inner wall of the second side plate, and a clamping groove is formed in the fin cushion block and is opposite to the pressure head; the bottom surface is provided with a waist-shaped hole for enabling a bolt to pass through the waist-shaped hole and the radial through groove and then installing the wing clamp on the faceplate, and the installation position of the wing clamp on the faceplate can be adjusted along the radial through groove;
the support plate fixture comprises a left support and a right support which are arranged on the support plate and located on two sides of the drill rod, and the support plate fixture further comprises two fixtures which are respectively arranged on the left support and the right support, and the two fixtures are pressed on two sides of the drill rod to tightly press the fins on the drill rod.
The invention also comprises the following technical characteristics:
specifically, a plurality of radial through grooves are uniformly distributed on the faceplate along the circumference;
and a connecting flange is fixedly arranged at the center of the faceplate, the connecting flange and the tip are respectively positioned at two sides of the faceplate, and the connecting flange is fixedly connected with a flange at the end part of the main shaft.
Specifically, the number of the wing clamps is one or more, and when the number of the wing clamps is two, the two wing clamps are in central symmetry along the center of the faceplate.
Specifically, in the clamp body, the bottom surface, the first side plate and the second side plate are of an integrated structure.
Specifically, the top of the pressure head is provided with a blind hole, the side wall of the end part of the screw rod is provided with an annular groove, and the end part of the screw rod extends into the blind hole; the side wall of the pressure head is provided with a bolt which radially penetrates into the blind hole and is limited in the annular groove, so that the pressure head is axially positioned relative to the screw and can rotate circumferentially relative to the screw.
Specifically, the bottom surface of the pressure head is provided with an anti-slip groove, so that the pressure head and the wing piece are prevented from rotating relatively when the pressure head presses the wing piece.
Specifically, the left bracket is of an L-shaped structure and comprises a transverse bottom plate and a vertical side plate parallel to the drill rod; a sliding block is arranged between the transverse bottom plate and the supporting plate, a T-shaped groove vertical to the drill rod is arranged on the sliding block, the transverse bottom plate is arranged on the T-shaped groove of the sliding block below the transverse bottom plate through a bolt, the sliding block and the supporting plate below the sliding block are arranged in a sliding mode through a dovetail groove, and the sliding direction is vertical to the drill rod so as to conveniently adjust a left support clamping wing piece; the right support comprises a U-shaped fixed seat with a downward opening and a vertical plate which is perpendicular to a fixed seat top plate and is parallel to the drill rod; the fixed seat is fixed on the supporting plate through a long bolt; and a plurality of stiffening plates are arranged between the transverse bottom plate and the vertical side plate and between the fixed seat top plate and the vertical plate.
Specifically, the clamp comprises a roller support, two shaft sleeves arranged on the roller support and a roller shaft arranged between the two shaft sleeves; the roller support is of a U-shaped structure, a bottom plate of the roller support on the left support is arranged on the vertical side plate, and a bottom plate of the roller support on the right support is arranged on the vertical plate; mounting grooves are formed in the side plates on the two sides of the roller support; the shaft sleeve comprises a strip-shaped mounting end and a sleeve end, and the strip-shaped mounting end is limited in the mounting groove; the roller shaft is arranged between the two shaft sleeves, two annular bulges are arranged at two ends of the roller shaft, the length of the roller shaft between the two annular bulges is not less than the width of the fin so as to press the fin between the drill rod and the roller shaft between the two annular bulges, and the inclination angle of the roller shaft is consistent with the helix angle of the fin pressed by the roller shaft.
Specifically, the gearbox in the headstock can drive the main shaft and the lead screw to rotate respectively, so that the main shaft can drive the faceplate and the drill rod to synchronously rotate, and meanwhile, the lead screw rotates to drive the two supporting plate clamps to move along the guide rail, so that the pitch of the fins is accurately controlled.
A winding method of a welding type multi-head spiral drill rod comprises the following steps:
preparing, starting a lathe, checking whether the lathe runs abnormally, preparing a winding device of the spiral drill rod according to a drawing of the spiral drill rod to be processed, and preparing corresponding drill rods and fins twice as many as the drill rods according to the number of the spiral drill rods to be wound;
winding a spiral drill rod, mounting a disc chuck on a lathe, adjusting a tailstock of the lathe to a proper position, and firmly supporting the drill rod by using a rotary center and a tip on the tailstock; determining the positions of the two fin clamps on the faceplate according to the pitch requirement on the drawing and fixing; the supporting plate is arranged close to the flower disc, and two supporting plate clamps are arranged on the supporting plate; clamping the wing piece in a wing piece cushion block clamping groove in a wing piece clamp, and driving a pressure head to tightly press the wing piece by using a screw rod; aligning notches of the roller shafts in the two supporting plate clamps with the fins, adjusting the positions of the supporting plate clamps, and pressing the fins between the roller shafts and the drill rod to enable the fins and the drill rod to be tightly attached; setting the rotation speed of a main shaft and a lead screw, wherein the main shaft rotates reversely while a supporting plate drives a supporting plate fixture to move along a guide rail, and the supporting plate fixture presses fins on a drill rod tightly to enable the fins to start to be wound;
step three, welding work and post-treatment, after the spiral drill rod is wound, using CO2The gas shielded welding machine performs spot welding at intervals of 300mm at two ends of the wing panel and the drill rod and at the joint gap to ensure that the wing panel cannot move after the drill rod is disassembled; shaking the tailstock to remove the drill rod and using CO2And welding the fins and 4 gaps of the drill rod by the gas shielded welding machine, and finishing the winding work of the fins of the double-helix drill rod after all welding is finished.
Compared with the prior art, the invention has the beneficial technical effects that:
the welding type spiral drill rod winding device is reasonable in design, and can meet the requirements on the pitch precision, the fitting degree of the spiral wing and the core rod and the integral welding quality of the spiral drill rod in the manufacturing and processing of the spiral drill rod. The device of the invention can be used for conveniently winding the double-helix drill rod and the spiral drill rods with different screw pitches and rotation directions. The old lathe with the model of CZ6180C used in the method has low manufacturing cost.
The invention has simple operation, high processing precision, high efficiency and low cost, the winding work of the spiral drill rod runs on the transformed old lathe, and the variability of parameters such as thread pitch and the like is realized by adjusting the angle and the feeding speed of the winding spiral fin supporting plate clamp; meanwhile, the double-helix drill rod can be conveniently wound; the spiral wing piece is directly wound on the core bar and is fixed on a lathe in a spot welding mode, so that the requirements of the core bar and the wing piece on the fitting precision, the final pitch precision and the like can be met.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the faceplate, the center and the connecting flange of the present invention;
FIG. 3 is a schematic view of a tab holder of the present invention;
FIG. 4 is a schematic view of the left bracket and clamp of the pallet clamp of the present invention;
FIG. 5 is a schematic view of the bracket and clamp of the present invention.
The reference numerals have the meanings given below:
1. the method comprises the following steps of (1) turning a lathe, 2. a faceplate, 3. a fin clamp, 4. a supporting plate clamp, 5. a drill rod and 6. fins;
101. the main shaft, 102, the base, 103, the headstock, 104, the tailstock, 105, the rotating center, 106, the guide rail, 107 and the supporting plate;
201. a radial through groove, 202, a tip, 203, a connecting flange;
301. the clamp comprises a clamp body, a screw rod 302, a nut 303, a pressure head 304, a wing cushion block 305, a bottom surface 306, a first side plate 307, a second side plate 308, a pull plate 309, a clamping groove 310 and a kidney-shaped hole 311;
401. the left bracket, 402, the right bracket, 403, the clamp, 404, the roller support, 405, the shaft sleeve, 406, the roller shaft.
The invention is described in detail below with reference to the drawings and the detailed description.
Detailed Description
The present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention fall within the protection scope of the present invention. The present invention will be described in further detail with reference to examples.
Example 1:
as shown in fig. 1 to 4, the present embodiment provides a winding device for a welding-type multi-headed auger stem, which includes a lathe 1, a faceplate 2 mounted on a main shaft 101 of the lathe 1, a fin fixture 3 mounted on the faceplate 2, and two pallet fixtures 4 provided on a base 102 of the lathe 1.
The lathe 1 comprises a base 102, a headstock 103 and a tailstock 104 which are arranged at two ends of the base 102, a main shaft 101 arranged on the headstock 103, and a rotating center 105 arranged on the tailstock 104, wherein the rotating center 105 is coaxially opposite to the main shaft 101; two parallel guide rails 106 are arranged on the base 102, a supporting plate 107 is arranged on the guide rails 106, a lead screw parallel to the guide rails 106 is arranged below the guide rails 106 and penetrates through the supporting plate 107, and the lead screw can drive the supporting plate 107 to move along the guide rails 106 through rotation.
The faceplate 2 is coaxial with the main shaft 101 and can rotate along with the main shaft 101, a plurality of radial through grooves 201 are formed in the faceplate 2, a tip 202 opposite to the rotating tip 105 is arranged in the center of the faceplate 2, the drill rod 5 is installed between the tip 202 and the rotating tip 105, and the drill rod 5 is parallel to the guide rail 106.
The tab clamp 3 comprises a clamp body 301, a screw 302, a nut 303, a ram 304 and a tab spacer block 305; the clamp body 301 is of a cuboid shell structure and has an opening on one surface, and the clamp body 301 comprises a bottom surface 306 opposite to the opening, a first side plate 307 and a second side plate 308 which are positioned on two sides of the bottom surface 306, and two pull plates 309 which are positioned on the other two sides of the bottom surface 306; fixing a nut 303 on the inner wall of a first side plate 307, wherein a screw 302 is perpendicular to the first side plate 307 and sequentially penetrates through the first side plate 307 and the nut 303 to extend into the clamp body 301, a pressure head 304 is mounted at the end of the screw 302 in the clamp body 301, and the pressure head 304 can rotate circumferentially relative to the screw 302; the wing cushion block 305 is fixed on the inner wall of the second side plate 308, a clamping groove 310 is arranged on the wing cushion block 305, and the clamping groove 310 is opposite to the pressure head 304; the bottom surface 306 is provided with a kidney-shaped hole 311 for allowing a bolt to pass through the kidney-shaped hole 311 and the radial through groove 201 and then installing the wing clamp 3 on the faceplate 2, and the installation position of the wing clamp 3 on the faceplate 2 can be adjusted along the radial through groove 201 so as to meet the requirements of the spiral drill pipe winding with different parameters.
The pallet clamp 4 comprises a left bracket 401 and a right bracket 402 which are arranged on the pallet 107 and are positioned on two sides of the drill rod, and also comprises two clamps 403 which are respectively arranged on the left bracket 401 and the right bracket 402, wherein the two clamps 403 are pressed on two sides of the drill rod 5 to press the fins 6 on the drill rod 5.
As shown in fig. 2, a plurality of radial through grooves 201 are uniformly distributed on the faceplate 2 along the circumference; the center of the faceplate 2 is fixedly provided with a connecting flange 203, the connecting flange 203 and the tip 202 are respectively positioned at two sides of the faceplate 2, and the connecting flange 203 is fixedly connected with the flange at the end part of the main shaft 101. More specifically, the faceplate 2 and the tip 202 are assembled with the connecting flange 203 by bolts, and the connecting flange 203 is fixed to the end flange of the main shaft 101 by bolts.
One or more fin clamps 3 are provided, and when two fin clamps 3 are provided, the two fin clamps 3 are arranged in a central symmetry manner along the center of the faceplate 2. According to the scheme, a single spiral drill rod and a double spiral drill rod with different spiral directions can be wound, and if only the single spiral drill rod is wound, a left-side or right-side support plate clamp is selected to be fixed on a lathe support plate according to the spiral direction; if a double-helix drill rod is wound, two support plate clamps are required to be used on a lathe support plate at the same time.
In the clamp body 301, the bottom surface 306, the first side plate 307, and the second side plate 308 are an integral structure.
The top of the pressure head 304 is provided with a blind hole, the side wall of the end part of the screw rod 302 is provided with an annular groove, and the end part of the screw rod 302 extends into the blind hole; bolts are provided on the side wall of the ram 304 and extend radially through the blind holes and are retained in annular grooves to axially locate the ram 304 relative to the screw 302 and to permit circumferential rotation relative to the screw 302.
The bottom surface of the ram 304 is provided with anti-slip grooves to prevent relative rotation between the ram 304 and the tab 6 when the ram 304 is pressed onto the tab 6.
The left bracket 401 is an L-shaped structure and comprises a transverse bottom plate and a vertical side plate parallel to the drill rod 5; a sliding block is arranged between the transverse bottom plate and the supporting plate, a T-shaped groove vertical to the drill rod 5 is arranged on the sliding block, the transverse bottom plate is arranged on the T-shaped groove of the sliding block below the transverse bottom plate through a bolt, the sliding block and the supporting plate 107 below the sliding block are arranged in a sliding mode through a dovetail groove, and the sliding direction is vertical to the drill rod so that the clamping wing piece 6 of the left support 401 can be adjusted conveniently; the right bracket 402 comprises a U-shaped fixed seat with a downward opening and a vertical plate which is perpendicular to the top plate of the fixed seat and is parallel to the drill rod; the fixed seat is fixed on the supporting plate 107 through a long bolt; a plurality of stiffening plates are arranged between the transverse bottom plate and the vertical side plate and between the fixed seat top plate and the vertical plate to reinforce the support.
The clamp 403 includes a roller support 404, two bushings 405 provided on the roller support 404, and a roller shaft 406 provided between the two bushings 405; specifically, the roller support 404 is of a U-shaped structure, the bottom plate of the roller support 404 on the left bracket 401 is mounted on the vertical side plate, and the bottom plate of the roller support 404 on the right bracket 402 is mounted on the vertical plate; mounting grooves are formed in the side plates on the two sides of the roller support 404; the bushing 405 includes a bar-shaped mounting end and a sleeve end, the bar-shaped mounting end being limited in the mounting slot.
A roller shaft 406 is arranged between the two shaft sleeves 405, two annular bulges are arranged at the two ends of the roller shaft 406, the length of the roller shaft 406 between the two annular bulges is not less than the width of the fin 6 so as to press the fin 6 between the roller shaft 406 between the two annular bulges and the drill rod, and the inclination angle of the roller shaft 406 is consistent with the helix angle of the fin 6 pressed by the roller shaft.
The gear box in the headstock 103 can respectively drive the main shaft 101 and the lead screw to rotate, so that the main shaft 101 can drive the faceplate 2 and the drill rod 5 to synchronously rotate, and simultaneously the lead screw rotates to drive the two supporting plate clamps 4 to move along the guide rail 106, thereby accurately controlling the pitch of the wing pieces 6.
In this scheme, the position of fin anchor clamps 3 is adjustable, thereby fin anchor clamps 3 are fixed on flower disc 2 and are linked together with lathe 1, and the radial groove 201 notch that link up of flower disc 2 is longer, can fix the fin anchor clamps in different positions according to auger stem's fin pitch isoparametric difference like this to the assurance can realize the auger stem coiling requirement of multiple specification. The invention can wind a single auger stem and a double auger stem with different spiral directions, two supporting plate clamps can be respectively fixed on two sides of the auger stem on the lathe supporting plate, if only the single auger stem is wound, the left or right supporting plate clamp is selected to be fixed on the lathe supporting plate according to the spiral direction; if a double-helix drill rod is wound, two support plate clamps are required to be used on a lathe support plate at the same time. The invention can ensure the joint precision requirement of the spiral wing piece and the core bar, and in the winding process of the spiral wing piece, because the finished drill rod is used as the core bar and clamped between the head and the tail of the lathe, the spiral wing piece is directly wound around the core bar without disassembly and reassembly, and the joint between the spiral wing piece and the core bar is tight. The invention can ensure the pitch precision requirement of the auger stem after welding, firstly welds the wing piece and the core bar together by using a spot welding method after the spiral wing piece is wound, and then the auger stem is dismounted from a lathe without displacement or deformation of the wing piece, thereby being easier to operate in the subsequent welding work and ensuring the precision requirement of the auger stem.
Example 2:
the embodiment provides a winding method of a welding type multi-head spiral drill rod, which comprises the following steps:
preparing, starting a lathe, checking whether the lathe runs abnormally, preparing a winding device of the spiral drill rod according to a drawing of the spiral drill rod to be processed, and preparing corresponding drill rods and fins twice as many as the drill rods according to the number of the spiral drill rods to be wound;
winding a spiral drill rod, mounting a disc chuck on a lathe, adjusting a tailstock of the lathe to a proper position, and firmly supporting the drill rod by using a rotary center and a tip on the tailstock; determining the positions of the two fin clamps on the faceplate according to the pitch requirement on the drawing and fixing; the supporting plate is arranged close to the flower disc, and two supporting plate clamps are arranged on the supporting plate; clamping the wing piece in a wing piece cushion block clamping groove in a wing piece clamp, and driving a pressure head to tightly press the wing piece by using a screw rod; aligning notches of the roller shafts in the two supporting plate clamps with the fins, adjusting the positions of the supporting plate clamps, and pressing the fins between the roller shafts and the drill rod to enable the fins and the drill rod to be tightly attached; setting the rotation speed of a main shaft and a lead screw, wherein the main shaft rotates reversely while a supporting plate drives a supporting plate fixture to move along a guide rail, and the supporting plate fixture presses fins on a drill rod tightly to enable the fins to start to be wound;
step three, welding work and post-treatment, after the spiral drill rod is wound, using CO2The gas shielded welding machine performs spot welding at intervals of 300mm at two ends of the wing panel and the drill rod and at the joint gap to ensure that the wing panel cannot move after the drill rod is disassembled; shaking the tailstock to remove the drill rod and using CO2And welding the fins and 4 gaps of the drill rod by the gas shielded welding machine, and finishing the winding work of the fins of the double-helix drill rod after all welding is finished.
Claims (8)
1. A winding device of a welding type multi-head spiral drill rod is characterized by comprising a lathe (1), a faceplate (2) arranged on a main shaft (101) of the lathe (1), a fin clamp (3) arranged on the faceplate (2), and two supporting plate clamps (4) arranged on a base (102) of the lathe (1);
the lathe (1) comprises a base (102), a headstock (103) and a tailstock (104) which are arranged at two ends of the base (102), a main shaft (101) arranged on the headstock (103), and a rotating center (105) arranged on the tailstock (104), wherein the rotating center (105) is coaxially opposite to the main shaft (101); two parallel guide rails (106) are arranged on the base (102), a supporting plate (107) is arranged on the guide rails (106), a lead screw parallel to the guide rails (106) is arranged below the inside of the guide rails (106) and penetrates through the supporting plate (107), and the lead screw can drive the supporting plate (107) to move along the guide rails (106) through rotation;
the flower disc (2) is coaxial with the main shaft (101) and can rotate along with the main shaft (101), a plurality of radial through grooves (201) are formed in the flower disc (2), a tip (202) opposite to the rotating tip (105) is arranged in the center of the flower disc (2), the drill rod (5) is installed between the tip (202) and the rotating tip (105), and the drill rod (5) is parallel to the guide rail (106);
the fin clamp (3) comprises a clamp body (301), a screw rod (302), a nut (303), a pressure head (304) and a fin cushion block (305); the clamp body (301) is of a cuboid shell structure, one surface of the clamp body is open, the clamp body (301) comprises a bottom surface (306) opposite to the opening, a first side plate (307) and a second side plate (308) which are positioned at two sides of the bottom surface (306), and two pull plates (309) which are positioned at the other two sides of the bottom surface (306); the nut (303) is fixed on the inner wall of the first side plate (307), the screw (302) is perpendicular to the first side plate (307) and sequentially penetrates through the first side plate (307) and the nut (303) to extend into the clamp body (301), the pressure head (304) is installed at the end part of the screw (302) in the clamp body (301), and the pressure head (304) can rotate circumferentially relative to the screw (302); the wing piece cushion block (305) is fixed on the inner wall of the second side plate (308), a clamping groove (310) is formed in the wing piece cushion block (305), and the clamping groove (310) is opposite to the pressure head (304); a waist-shaped hole (311) is formed in the bottom surface (306) so that a bolt can pass through the waist-shaped hole (311) and the radial through groove (201) to install the wing clamp (3) on the faceplate (2), and the installation position of the wing clamp (3) on the faceplate (2) can be adjusted along the radial through groove (201);
the supporting plate clamp (4) comprises a left support (401) and a right support (402) which are arranged on the supporting plate (107) and located on two sides of the drill rod, and further comprises two clamps (403) which are respectively arranged on the left support (401) and the right support (402), wherein the two clamps (403) are pressed on two sides of the drill rod (5) to press the fins (6) on the drill rod (5);
the left support (401) is of an L-shaped structure and comprises a transverse bottom plate and a vertical side plate parallel to the drill rod (5); a sliding block is arranged between the transverse bottom plate and the supporting plate, a T-shaped groove vertical to the drill rod (5) is arranged on the sliding block, the transverse bottom plate is arranged on the T-shaped groove of the sliding block below the transverse bottom plate through a bolt, the sliding block and the supporting plate (107) below the sliding block are arranged in a sliding mode through a dovetail groove, and the sliding direction is vertical to the drill rod so that the left support (401) can be adjusted conveniently to clamp the wing (6); the right support (402) comprises a U-shaped fixed seat with a downward opening and a vertical plate which is perpendicular to a top plate of the fixed seat and is parallel to the drill rod; the fixed seat is fixed on the supporting plate (107) through a long bolt; a plurality of stiffening plates are arranged between the transverse bottom plate and the vertical side plate and between the fixed seat top plate and the vertical plate;
the clamp (403) comprises a roller support (404), two shaft sleeves (405) arranged on the roller support (404) and a roller shaft (406) arranged between the two shaft sleeves (405); the roller support (404) is of a U-shaped structure, the bottom plate of the roller support (404) on the left support (401) is installed on the vertical side plate, and the bottom plate of the roller support (404) on the right support (402) is installed on the vertical plate; mounting grooves are formed in the side plates on the two sides of the roller support (404); the shaft sleeve (405) comprises a strip-shaped mounting end and a sleeve end, and the strip-shaped mounting end is limited in the mounting groove; the roller shaft (406) is installed between the two shaft sleeves (405), two annular bulges are arranged at two ends of the roller shaft (406), the length of the roller shaft (406) between the two annular bulges is not less than the width of the fin (6) so as to press the fin (6) between the drill rod and the roller shaft (406) between the two annular bulges, and the inclination angle of the roller shaft (406) is consistent with the helix angle of the fin (6) pressed by the roller shaft (406).
2. The winding device of the welding type multi-head auger stem according to claim 1, characterized in that a plurality of radial through grooves (201) on the faceplate (2) are uniformly distributed along the circumference;
a connecting flange (203) is fixedly installed at the center of the faceplate (2), the connecting flange (203) and the tip (202) are respectively located on two sides of the faceplate (2), and the connecting flange (203) is fixedly connected with a flange at the end part of the main shaft (101).
3. The winding device of the welded multi-headed auger stem according to claim 1, wherein when there are two fin clamps (3), the two fin clamps (3) are centrosymmetric along the center of the faceplate (2).
4. The winding device of the welded multi-headed auger stem according to claim 1, wherein the bottom surface (306), the first side plate (307) and the second side plate (308) of the clamp body (301) are of an integral structure.
5. The winding device of the welding type multi-head auger stem according to claim 1, wherein the top of the pressure head (304) is provided with a blind hole, the side wall of the end part of the screw rod (302) is provided with an annular groove, and the end part of the screw rod (302) extends into the blind hole; and bolts are arranged on the side wall of the pressure head (304), radially penetrate into the blind holes and are limited in the annular grooves, so that the pressure head (304) is axially positioned relative to the screw rod (302) and can rotate circumferentially relative to the screw rod (302).
6. The winding device of the welding type multi-head auger stem according to claim 1, wherein the bottom surface of the pressure head (304) is provided with an anti-slip groove to prevent the relative rotation between the pressure head (304) and the wing (6) when the pressure head (304) presses on the wing (6).
7. The winding device of the welding type multi-head auger stem according to claim 1, wherein a gearbox in the headstock (103) can respectively drive the main shaft (101) and the lead screw to rotate, so that the main shaft (101) can drive the chuck (2) and the auger stem (5) to synchronously rotate, and simultaneously the lead screw rotates to drive the two supporting plate clamps (4) to move along the guide rail (106), thereby accurately controlling the pitch of the fin (6).
8. A winding method of a welding type multi-head spiral drill rod is characterized by comprising the following steps:
preparing, starting a lathe, checking whether the lathe runs abnormally, preparing a winding device of the spiral drill rod according to a drawing of the spiral drill rod to be processed, and preparing corresponding drill rods and fins twice as many as the drill rods according to the number of the spiral drill rods to be wound;
winding a spiral drill rod, mounting a disc chuck on a lathe, adjusting a tailstock of the lathe to a proper position, and propping the drill rod by using a rotary centre and a centre on the tailstock; determining the positions of the two fin clamps on the faceplate according to the pitch requirement on the drawing and fixing; the supporting plate is arranged close to the flower disc, and two supporting plate clamps are arranged on the supporting plate; clamping the wing piece in a wing piece cushion block clamping groove in a wing piece clamp, and driving a pressure head to tightly press the wing piece by using a screw rod; aligning notches of the roller shafts in the two supporting plate clamps with the fins, adjusting the positions of the supporting plate clamps, and pressing the fins between the roller shafts and the drill rod to enable the fins and the drill rod to be tightly attached; setting the rotation speed of a main shaft and a lead screw, wherein the main shaft rotates reversely while a supporting plate drives a supporting plate fixture to move along a guide rail, and the supporting plate fixture presses fins on a drill rod tightly to enable the fins to start to be wound;
step three, welding work and post-treatment, after the spiral drill rod is wound, using CO2The gas shielded welding machine performs spot welding at intervals of 300mm at two ends of the wing panel and the drill rod and at the joint gap to ensure that the wing panel cannot move after the drill rod is disassembled; shaking the tailstock to remove the drill rod and using CO2And welding the fins and 4 gaps of the drill rod by the gas shielded welding machine, and finishing the winding work of the fins of the double-helix drill rod after all welding is finished.
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| CN202011560313.4A CN112756910B (en) | 2020-12-25 | 2020-12-25 | Winding device and method for welding type multi-head spiral drill rod |
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| CN202011560313.4A CN112756910B (en) | 2020-12-25 | 2020-12-25 | Winding device and method for welding type multi-head spiral drill rod |
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| CN112756910B true CN112756910B (en) | 2022-03-15 |
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