Feeding device for a drill bit welding equipment

Abstract

The present application relates to the technical field of drill bit processing, and discloses a feeding device for drill bit welding equipment, which includes a machine platform, a silo arranged on the machine platform for stacking drill rods, a receiving assembly for receiving the drill rods rolled down from the silo, and a driving assembly for driving the through groove of the drill rod on the receiving assembly to rotate to a horizontal state, wherein the driving assembly includes a driving motor arranged on one side of the receiving assembly, a driving block fixed to the output shaft of the driving motor facing the side of the receiving assembly, and a pusher arranged on the side of the receiving assembly away from the driving motor, wherein the pusher is used to push the drill rod on the receiving assembly toward the driving motor so that the driving block extends into the through groove of the drill rod. The present application has the effect of facilitating the through groove of the drill rod to rotate to a horizontal state.

Description

Technical Field

[0001] The present application relates to the technical field of drill bit processing, and in particular to a feeding device for drill bit welding equipment. Background Art

[0002] A drill bit is a tool used to drill holes in workpieces or the ground, and is widely used in sheet metal processing, geological exploration and other fields.

[0003] A combined drill bit is disclosed in the related art, which includes a drill rod and a drill bit welded to one end of the drill rod, and a through slot is provided on the drill rod for the end of the drill bit to extend into. When processing the above drill bit, the drill bit needs to be assembled into the through slot of the drill rod first, and then the drill rod with the drill bit is moved into a welding device, so as to fix the drill bit on the drill rod by using the welding device.

[0004] When assembling drill bits and drill rods, the drill bits are generally fed horizontally through a vibrating plate, and the drill rods are concentrated on the machine table. After a certain thrust is applied to the drill rods, the drill rods will roll down along the inclined surface of the machine table. During the rolling process of the drill rods, the position of the through slots will also change accordingly. During assembly, the operator needs to manually turn the drill rod to make the through slots horizontal so that the drill bits can be extended into the through slots under the action of the vibrating plate. However, the manual operation method is prone to visual fatigue for operators after long-term work, which affects the rotation accuracy of the drill rods and needs to be improved. Summary of the invention

[0005] In order to facilitate the rotation of the through groove of the drill rod to a horizontal state, the present application provides a loading device for a drill bit welding device.

[0006] The present application provides a feeding device for a drill blade welding device that adopts the following technical solution:

[0007] A feeding device for drill bit welding equipment comprises a machine platform, a silo arranged on the machine platform for stacking drill rods, a receiving assembly for receiving the drill rods rolling down from the silo, and a driving assembly for driving the through groove of the drill rod on the receiving assembly to rotate to a horizontal state, wherein the driving assembly comprises a driving motor arranged on one side of the receiving assembly, a driving block fixed to the output shaft of the driving motor facing the side of the receiving assembly, and a pushing member arranged on the side of the receiving assembly away from the driving motor, wherein the pushing member is used to push the drill rod on the receiving assembly toward the driving motor so that the driving block extends into the through groove of the drill rod.

[0008] By adopting the above technical solution, when assembling the drill bit and the drill pipe, the drill pipes are stacked in the bin. After the drill pipes are pushed towards the receiving component, the drill pipes will roll from the bin onto the receiving component. Then, the pushing member is activated, causing the drill pipes on the receiving component to move towards the driving motor, so that the driving block can be inserted into the through groove of the drill pipe. Next, the driving motor is used to drive the driving block to drive the drill pipe to rotate, thereby accurately rotating the through groove of the drill pipe to the horizontal state. After the drill pipe rotates into place, the manipulator can be used to grab the drill pipe to the discharging position of the vibrating disk of the drill bit, so that the drill bits output from the vibrating disk can be accurately inserted into the through groove of the drill pipe.

[0009] The above adjustment method is mechanical rather than manual. During operation, only a preset program needs to be set so that the driving motor stops after rotating the driving block to the horizontal state, and the through groove of the drill pipe can be accurately adjusted to the horizontal state, with high adjustment accuracy and simple operation.

[0010] Optionally, a guiding conical angle is provided at one end of the driving block away from the driving motor.

[0011] By adopting the above technical solution, the guiding conical angle plays a guiding role when the drill pipe on the receiving component moves towards the driving block, which helps the driving block accurately extend into the through groove of the drill pipe, thereby reducing the labor intensity of the operator for manually aligning the rotating block and the through groove.

[0012] Optionally, a first support is provided on the machine table. The pushing member includes a pushing cylinder arranged on the first support and a pushing block fixed on the piston rod of the pushing cylinder. The piston rod of the pushing cylinder is horizontally oriented towards the receiving component.

[0013] By adopting the above technical solution, when the piston rod of the pushing cylinder extends, the pushing block will move towards the side close to the driving motor under the action of force, thereby pushing the drill pipe on the receiving component towards the driving block, with good driving effect.

[0014] Optionally, a second support for installing the driving motor is provided on the machine table. A reset member for driving the drill pipe in the receiving component to move towards the pushing member is provided on one side of the second support. The reset member includes a connecting block fixed on the output shaft of the driving motor, a reset block located on the side of the connecting block facing the pushing member, and a reset spring fixed between the connecting block and the reset block. The reset spring is used to drive the reset block to abut against the drill pipe on the receiving component.

[0015] By adopting the above technical solution, when the piston rod of the pushing cylinder shortens, the reset block will move towards the side close to the drill pipe under the action of the reset spring, thereby separating the drill pipe from the driving block to prevent the driving block from affecting the manipulator from grabbing the drill pipe adjusted in place.

[0016] Optionally, the receiving assembly includes two supporting seats spaced apart between the first support and the second support, the machine platform is provided with a guide slope for connecting the bottom of the silo and the supporting seat, the top of the supporting seat is provided with a concave arc groove for the drill rod to roll into, and the top surface of the concave arc groove forms a smooth transition with the guide slope.

[0017] By adopting the above technical solution, after the drill rod rolls out of the silo, it will move into the concave arc groove through the guiding inclined surface. The setting of the concave arc groove can increase the contact area between the supporting seat and the drill rod and improve the supporting effect of the supporting seat on the drill rod.

[0018] Optionally, an extension block is provided on the side of the support seat away from the guiding inclined surface, and a stopper is movably provided on the extension block for preventing the drill rod from moving out of the concave arc groove, and one end of the stopper is located directly above the concave arc groove.

[0019] By adopting the above technical solution, a certain inertia is generated when the drill rod rolls down along the guide slope, so that after the drill rod moves to the concave arc groove, it will still move to the side away from the guide slope under the action of inertia. The stopper is arranged just above the concave arc groove to prevent the drill rod from moving out of the support seat under the action of inertia, which helps to further ensure the positioning effect of the support seat on the drill rod.

[0020] Optionally, a horizontally extending retaining groove is provided on the side of the extension block close to the silo, the retaining block is slidably arranged in the retaining groove, a connecting spring is arranged between the groove wall of the retaining groove and the retaining block, the connecting spring is used to drive the retaining block to extend out of the retaining groove, and a yielding inclined surface is provided at the bottom of the retaining block at the end away from the connecting spring.

[0021] By adopting the above technical solution, after the drill rod is adjusted into place, when the drill rod is moved upward by the manipulator, the drill rod will contact the yielding inclined surface and push the stopper toward the stop groove to prevent the stopper from affecting the movement of the drill rod.

[0022] Optionally, a frosted sheet is embedded on the groove wall of the concave arc groove, and a rolling ball is rotatably arranged, and the top surface of the frosted sheet is coplanar with the top surface of the concave arc groove.

[0023] By adopting the above technical solution, the grinding sheet can increase the surface friction of the support seat, thereby reducing the speed of the drill rod when it rolls down to the concave arc surface, so as to reduce the risk of the drill rod moving out of the support seat. The setting of the rolling ball helps to reduce the friction resistance of the drill rod when it moves between the first support and the second support, thereby improving the smoothness of the movement of the drill rod.

[0024] Optionally, the supporting seat includes a fixed block arranged on the machine table and a movable block slidably arranged directly above the fixed block, the bottom surface of the movable block is provided with a movable groove for the fixed block to vertically extend into, the groove wall of the movable groove is provided with a vertically extending waist-shaped hole, and a movable bolt threadedly connected to the fixed block is passed through the waist-shaped hole.

[0025] By adopting the above technical solution, when adjusting drill rods of different diameters, if the height of the support seat remains unchanged, the height of the through slot will also change after the drill rod rolls down to the concave arc surface, and even affect the insertion of the driving block and the through slot, so it is necessary to adjust the top surface height of the support seat. The fixed block and the movable block are connected by movable bolts, so that the height of the movable block can be freely adjusted to adapt to supporting drill rods of different diameters, which is highly practical.

[0026] Optionally, a translation assembly for driving two supporting seats to move toward or away from each other is provided on the machine platform, and the translation assembly includes a servo motor arranged on the machine platform and a bidirectional screw rod fixedly connected to the output shaft of the servo motor, and the two supporting seats are respectively threadedly connected to different threaded segments of the bidirectional screw rod.

[0027] By adopting the above technical solution, when the servo motor is working, the bidirectional screw will rotate circumferentially under the drive of the servo motor output shaft, so that the two support seats move toward or away from each other, so that the support seats can be supported at different positions of the drill rod, or match drill rods of different lengths as required, and the loading device has strong adaptability.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. After the drill rod rolls down from the silo to the receiving assembly, push the drill rod on the receiving assembly toward the drive motor so that the drive block extends into the through slot of the drill rod. Then the through slot can be turned to a horizontal state by the drive motor. The operation is simple and the adjustment accuracy is high.

[0030] 2. The setting of the concave arc surface helps to increase the contact area between the drill rod and the support seat and improve the supporting effect of the support seat on the drill rod; the stopper is located directly above the concave arc surface, so that the drill rod is not easy to fly out of the support seat under the action of inertia when rolling down;

[0031] 3. The support seat includes a fixed block and a movable block connected in a vertical sliding manner, so that the top height of the support seat can be adjusted to adapt to drill rods of different diameters, and the support seat is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0033] Figure 2 It is a schematic diagram of the structure of the supporting seat in the embodiment of the present application.

[0034] Figure 3 It is an exploded schematic diagram of the supporting seat in the embodiment of the present application.

[0035] Figure 4 It is an exploded schematic diagram of the drive motor, the drive block and the reset member in the embodiment of the present application.

[0036] Description of reference numerals:

[0037] 1. Machine; 11. Baffle plate; 12. Guide plate; 121. Guide slope; 13. First support; 14. Second support; 2. Material bin; 21. Baffle motor; 3. Undertaking assembly; 31. Support seat; 311. Fixed block; 312. Movable block; 313. Movable groove; 314. Waist-shaped hole; 315. Movable bolt; 32. Concave arc groove; 33. Frosted sheet; 34. Rolling ball; 35. Extension block; 35 1. Stop groove; 352. Connecting spring; 353. Stop block; 354. Make way ramp; 4. Driving assembly; 41. Driving motor; 42. Driving block; 421. Guide cone angle; 43. Pushing member; 431. Pushing cylinder; 432. Pushing block; 5. Translation assembly; 51. Servo motor; 52. Bidirectional screw rod; 6. Resetting member; 61. Connecting block; 62. Resetting block; 63. Resetting spring; 64. Protective cover. DETAILED DESCRIPTION

[0038] The following is combined with Figures 1-4 This application is described in further detail.

[0039] The embodiment of the present application discloses a feeding device for a drill bit welding device, which is used for processing a combined drill bit. The drill bit includes a drill rod and a drill bit that are welded and fixed. A through groove is formed at one end of the drill rod, and the drill bit is embedded in the through groove.

[0040] Reference Figure 1 The feeding device of the drill bit welding equipment includes a machine platform 1, a silo 2 arranged on the machine platform 1 for stacking drill rods, a receiving assembly 3 movably arranged on the machine platform 1 for receiving the drill rods, and a driving assembly 4 for driving the through groove of the drill rod on the receiving assembly 3 to rotate to a horizontal state. After the through groove of the drill rod rotates to a horizontal state under the action of the driving assembly 4, the manipulator grabs it to the exit position of the vibration plate for placing the drill bit. The structure of the above-mentioned manipulator is a prior art and is not an improvement point of the present application, and will not be described in detail here.

[0041] Reference Figure 1 , the silo 2 is provided with an opening on the top and an inclined surface on the bottom wall, and the drill rods are arranged in a continuous horizontal manner along the inclined surface of the silo 2. The machine 1 is provided with a material blocking plate 11 at the bottom end of the silo 2 for rotation. One end of the material blocking plate 11 is rotatably provided on the machine 1 through a rotating shaft, and the other end can rotate relative to the silo 2 to open or cover the bottom opening of the silo 2. The silo 2 is provided with a material blocking motor 21 for driving the material blocking plate 11 to flip. The output shaft of the material blocking motor 21 is fixedly connected to the rotating shaft. The material blocking motor 21 adopts a motor whose output shaft can rotate forward and reverse. During processing, the output shaft of the material blocking motor 21 can be preset to rotate forward and reverse periodically, so that the bottom opening of the silo 2 can be periodically opened or closed, thereby realizing the drop of drill rods one by one.

[0042] ReferenceFigure 1 On one side of the machine table 1 facing the receiving component 3, a material guiding plate 12 is fixedly arranged. On the top surface of the material guiding plate 12, a guiding inclined surface 121 flush with the bottom wall of the material bin 2 is provided. After the drill rod moves out of the material bin 2, it will fall onto the guiding inclined surface 121 and move towards the receiving component 3 under the guidance of the guiding inclined surface 121.

[0043] Refer to Figure 1 、 Figure 2 As shown in FIGS. [], the receiving component 3 includes two supporting seats 31 arranged at intervals. The supporting seat 31 includes a fixed block 311 and a movable block 312 which are vertically slidably connected. The fixed block 311 is horizontally slidably connected to the machine table 1, and the movable block 312 is located directly above the fixed block 311. A vertically extending movable groove 313 is formed in the bottom surface of the movable block 312. The top end of the fixed block 311 is slidably arranged in the movable groove 313. A vertically extending waist-shaped hole 314 is formed in the groove wall of the movable groove 313. A movable bolt 315 threadedly connected to the fixed block 311 is inserted through the waist-shaped hole 314. When the movable bolt 315 is loosened, the movable block 312 can move vertically relative to the fixed block 311, thereby changing the top height of the supporting seat 31.

[0044] Refer to Figure 1 、 Figure 2 As shown in FIGS. [], to realize the horizontal position adjustment of the supporting seat 31, a set of translation components 5 is arranged on the machine table 1 to drive the two supporting seats 31 to move towards or away from each other. The translation component 5 includes a servo motor 51 arranged on the machine table 1 and a bidirectional lead screw 52 fixedly connected to the output shaft of the servo motor 51. The bidirectional lead screw 52 is rotatably arranged on the machine table 1 and has two thread sections with opposite thread directions. The fixed blocks 311 of the two supporting seats 31 are respectively threadedly connected to different thread sections of the bidirectional lead screw 52.

[0045] Refer to Figure 2 、 Figure 3 As shown in FIGS. [], a concave arc groove 32 is formed in the top surface of the movable block 312. At the end of the top surface of the concave arc groove 32 close to the material guiding plate 12, a smooth transition is formed with the guiding inclined surface 121, so that the drill rod can smoothly move into the concave arc groove 32 after rolling off the guiding inclined surface 121. A grinding sheet 33 is fixedly embedded in the groove wall of the concave arc groove 32. The top surface of the grinding sheet 33 is coplanar with the concave arc surface, so that the speed of the drill rod can be reduced after moving onto the grinding sheet 33 to reduce the risk of the drill rod rushing out of the supporting seat 31 under the action of inertia. In addition, a rolling ball 34 is rotatably arranged at the bottom end of the groove wall of the concave arc surface to reduce the frictional resistance when the drill rod moves along the distribution direction of the two supporting seats 31.

[0046] Refer to Figure 2 、 Figure 3, an extension block 35 is fixed on the side of the movable block 312 away from the guide slope 121, and a horizontally extending stop groove 351 is provided on the side of the extension block 35 close to the guide plate 12. A connecting spring 352 is fixed on the groove wall of the stop groove 351 away from its own opening, and a stop block 353 is fixed on the other end of the connecting spring 352. When the connecting spring 352 is in a natural state, one end of the stop block 353 extends out of the stop groove 351 and moves to the top of the concave arc groove 32, so that the drill rod is less likely to escape from the concave arc groove 32 under the action of inertia. In order to reduce the influence of the stop block 353 on the upward movement of the drill rod, a yielding slope 354 is provided at the bottom of the stop block 353 at the end thereof away from the connecting spring 352. When the drill rod is grabbed by the manipulator and moved upward, the yielding slope 354 will contact the drill rod, so that the stop block 353 is gradually pushed into the stop groove 351.

[0047] Reference Figure 1 , Figure 4 The driving assembly 4 includes a driving motor 41, a driving block 42 fixed to the output shaft of the driving motor 41 toward the side of the supporting seat 31, and a pushing member 43 located on the side of the supporting seat 31 away from the driving motor 41. The first support 13 and the second support 14 are fixedly arranged on the machine table 1, the pushing member 43 is installed on the first support 13, and the driving motor 41 is installed on the second support 14.

[0048] Reference Figure 1 The push member 43 includes a push cylinder 431 and a push block 432 fixed on the piston rod of the push cylinder 431. The cylinder barrel of the push cylinder 431 is fixed on the side of the first support 13 facing the support seat 31, and the piston rod is horizontally arranged toward the support seat 31. The push block 432 is flush with the height of the drill rod on the support seat 31. When the piston rod of the push cylinder 431 is extended, the push block 432 can push the drill rod on the support seat 31 toward the driving motor 41.

[0049] Reference Figure 1 , Figure 4 The cross section of the driving block 42 is square and a guide cone angle 421 is provided at one end away from the driving motor 41. The cross section size of the through groove on the drill rod is larger than the cross section size of the driving block 42, so that the driving block 42 can be inserted into the driving groove to drive the drill rod to rotate by the driving motor 41. During processing, the stop position of the driving motor 41 can be preset to be a horizontal position. When the push block 432 pushes the drill rod toward the driving motor 41, the guide cone angle 421 will guide the driving block 42 into the through groove, thereby realizing the insertion of the driving block 42 and the through groove, so that the driving motor 41 can be used to turn the drill rod to a position where the through groove is in a horizontal state. It should be noted that when aligning the driving block 42 and the through groove, in addition to using the guiding effect of the guide cone angle 421, the operator can also manually rotate the drill rod so that the driving block 42 can be inserted into the through groove of the drill rod. The above adjustment method is only a rough adjustment rather than a precise adjustment, so it is more convenient and quicker than manually aligning the drill bit and the through groove.

[0050] Referring to Figure 1 and Figure 4 , a reset member 6 is provided on one side of the second support 14 facing the support base 31, and is used to drive the drill pipe on the support base 31 to move towards the pushing cylinder 431, so that the driving block 42 moves out of the through groove of the drill pipe. The reset member 6 includes a connecting block 61 fixed to the output shaft of the driving motor 41, a reset block 62 located on the side of the connecting block 61 facing the pushing cylinder 431, and a plurality of reset springs 63 fixed between the reset block 62 and the connecting block 61. A through hole for the driving block 42 to pass through is formed on the reset block 62. When the piston rod of the pushing cylinder 431 shortens, the reset block 62 will abut against the drill pipe on the support base 31 under the action of the reset spring 63, so that the driving block 42 automatically moves out of the through groove of the drill pipe. In order to ensure the moving direction of the reset block 62, a protective sleeve 64 is fixed on the side of the connecting block 61 facing the reset block 62. The protective sleeve 64 covers the outside of the reset spring 63, and the reset block 62 is slidably arranged in the protective sleeve 64.

[0051] The implementation principle of the feeding device of a drill bit welding device in an embodiment of the present application is as follows: The drill pipes are laid flat in the material bin 2. When the material blocking motor 21 is used to drive the material blocking plate 11 to open the bottom opening of the material bin 2, the drill pipes will fall onto the support base 31 along the guiding inclined surface 121. Then the pushing cylinder 431 is started, so that the pushing block 432 pushes the drill pipe on the support base 31 towards the driving motor 41, and the driving block 42 will extend into the through groove of the drill pipe under the action of the guiding conical angle 421. Then the driving motor 41 is used to drive the driving block 42 to drive the drill pipe to rotate, and the through groove of the drill pipe can be accurately rotated to the horizontal state. The above operation method is mechanical rather than manual. During operation, only a preset program needs to be set, so that the driving motor 41 stops after turning the driving block 42 to the horizontal state, and the through groove of the drill pipe can be accurately adjusted to the horizontal state, so that the through groove of the drill pipe can be accurately aligned with the drill bit when the manipulator grabs the material later. The adjustment accuracy is high and the operation is simple.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A feeding device for drill bit welding equipment, Features: The invention comprises a machine platform (1), a material bin (2) arranged on the machine platform (1) for stacking drill rods, a receiving assembly (3) for receiving the drill rods rolled down from the material bin (2), and a driving assembly (4) for driving the through groove of the drill rod on the receiving assembly (3) to rotate to a horizontal state, wherein the driving assembly (4) comprises a driving motor (41) arranged on one side of the receiving assembly (3), a driving block (42) fixed to the output shaft of the driving motor (41) and facing the receiving assembly (3), and a pushing member (43) arranged on the side of the receiving assembly (3) away from the driving motor (41), wherein the pushing member (43) is used to push the drill rod on the receiving assembly (3) toward the driving motor (41) so that the driving block (42) extends into the through groove of the drill rod, and the through groove is used for the end of the drill bit to extend into; The machine platform (1) is provided with a first support (13), and the push member (43) comprises a push cylinder (431) provided on the first support (13) and a push block (432) fixed on the piston rod of the push cylinder (431), and the piston rod of the push cylinder (431) is arranged horizontally toward the receiving assembly (3); The machine platform (1) is provided with a second support (14) for mounting a driving motor (41); a reset member (6) for driving a drill rod in the receiving assembly (3) to move toward a push member (43) is provided on one side of the second support (14); the reset member (6) comprises a connecting block (61) fixed to an output shaft of the driving motor (41), a reset block (62) located on a side of the connecting block (61) facing the push member (43), and a reset spring (63) fixed between the connecting block (61) and the reset block (62); the reset spring (63) is used to drive the reset block (62) to abut against the drill rod on the receiving assembly (3); The receiving assembly (3) comprises two support seats (31) arranged at intervals between a first support seat (13) and a second support seat (14); a guide inclined surface (121) for connecting the bottom of the silo (2) and the support seat (31) is provided on the machine platform (1); a concave arc groove (32) for a drill rod to roll into is provided at the top of the support seat (31); and a top surface of the concave arc groove (32) forms a smooth transition with the guide inclined surface (121).

2. The feeding device of the drill bit welding equipment according to claim 1, Features: A guide cone angle (421) is provided at one end of the driving block (42) away from the driving motor (41).

3. The feeding device of the drill bit welding equipment according to claim 1, Features: An extension block (35) is provided on a side of the support seat (31) away from the guide inclined surface (121), and a stopper (353) is movably provided on the extension block (35) for preventing the drill rod from moving out of the concave arc groove (32), and one end of the stopper (353) is located directly above the concave arc groove (32).

4. The feeding device of the drill bit welding equipment according to claim 3, Features: The extension block (35) is provided with a horizontally extending retaining groove (351) on the side close to the silo (2), and the retaining block (353) is slidably arranged in the retaining groove (351). A connecting spring (352) is arranged between the groove wall of the retaining groove (351) and the retaining block (353), and the connecting spring (352) is used to drive the retaining block (353) to extend out of the retaining groove (351). The bottom of the retaining block (353) is provided with a yielding inclined surface (354) at its end away from the connecting spring (352).

5. The feeding device of the drill bit welding equipment according to claim 1, Features: A grinding sheet (33) is embedded on the groove wall of the concave arc groove (32), and a rolling ball (34) is rotatably arranged, and the top surface of the grinding sheet (33) is coplanar with the top surface of the concave arc groove (32).

6. The feeding device of the drill bit welding equipment according to claim 1, Features: The supporting seat (31) comprises a fixed block (311) arranged on the machine platform (1), and a movable block (312) slidably arranged just above the fixed block (311); a movable groove (313) for the fixed block (311) to vertically extend into is provided on the bottom surface of the movable block (312); a waist-shaped hole (314) extending vertically is provided on the groove wall of the movable groove (313); and a movable bolt (315) threadedly connected to the fixed block (311) is passed through the waist-shaped hole (314).

7. The feeding device of the drill bit welding equipment according to claim 1, Features: The machine platform (1) is provided with a translation assembly (5) for driving the two supporting seats (31) to move toward or away from each other, the translation assembly (5) comprising a servo motor (51) provided on the machine platform (1), and a bidirectional screw rod (52) fixedly connected to an output shaft of the servo motor (51), and the two supporting seats (31) are respectively threadedly connected to different thread segments of the bidirectional screw rod (52).

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