Hexagonal steel pipe drilling device

Abstract

The utility model relates to a hexagonal steel pipe drilling device, and belongs to the technical field of hexagonal steel pipe drilling equipment. Comprising a base, a positioning block is fixedly installed on the base, an assembling plate is installed on the base on one side of the positioning block, a sliding plate is installed on the assembling plate in a sliding mode through a lead screw mechanism, a driving motor is installed on the sliding plate, and a drill bit assembly is installed on a transmission shaft of the driving motor and corresponds to the positioning block. A workpiece limiting mechanism is arranged between the sliding plate on one side of the drill bit assembly and the positioning block. The hexagonal steel pipe drilling device is simple in structure, and effectively solves the problems that when an existing handheld drilling machine is adopted for drilling operation, the working efficiency is low, the handheld drilling machine slips to cause drilling deflection, and fingers of workers are easily scratched.

Description

Technical Field

[0001] The utility model relates to a hexagonal steel pipe drilling device, belonging to the technical field of hexagonal steel pipe drilling equipment. Background Art

[0002] Hexagonal steel pipes are important spare parts for automobiles. In order to meet the subsequent assembly work, two holes need to be opened on one of the sides of the hexagonal steel pipe to facilitate the later assembly of the hexagonal steel pipe. The existing hexagonal steel pipe opening operations are all manually measured on the side of the hole, and then marked, and then the hexagonal steel pipe is supported by one hand and a handheld drill is held in the other hand to drill the hole. This process is not only cumbersome to operate, but also labor-intensive and has low drilling efficiency. On the other hand, due to the poor stability of the workpiece held by the human hand, the manual handheld drill is prone to slipping and causing the drilled hole to be skewed. At the same time, the slipping drill also has the risk of scratching the fingers of the staff. Therefore, it is necessary to improve it. Summary of the invention

[0003] The utility model aims to provide a hexagonal steel pipe drilling device to solve the problems of low working efficiency, deviation of drilling caused by slipping of the handheld drilling machine and easy scratching of the fingers of workers in the existing handheld drilling machine.

[0004] The technical solution of the utility model is:

[0005] A hexagonal steel pipe drilling device includes a base, and is characterized in that: a positioning block is fixedly installed on the base, an assembly plate is installed on the base on one side of the positioning block, a slide plate is slidably installed on the assembly plate through a screw mechanism, a driving motor is installed on the slide plate, a drill bit assembly is installed on the transmission shaft of the driving motor, the drill bit assembly and the positioning block are arranged correspondingly, and a workpiece limiting mechanism is installed between the slide plate on one side of the drill bit assembly and the positioning block.

[0006] The positioning block is a rectangular body, and a workpiece positioning groove is arranged on the positioning block, and the cross section of the workpiece positioning groove is hexagonal.

[0007] The screw mechanism includes a fixed plate, a screw motor and a transmission screw. The fixed plates are arranged on the assembly plate at intervals. A transmission screw is movably installed between the fixed plates. The fixed plate at one end of the transmission screw is equipped with a screw motor. The transmission shaft of the screw motor is fixedly connected to one end of the transmission screw. The transmission screw and the slide plate are threadedly connected via a screw nut.

[0008] The cross-section of the skateboard is in a "convex" shape, and a slide groove is arranged on the assembly plate corresponding to the thin-diameter end of the skateboard. The skateboard and the slide groove are slidably connected. The thin-diameter end of the skateboard extends to the outside of the slide groove. An installation groove is arranged on the skateboard extending to the outside of the slide groove, and the installation groove is clamped with the screw nut.

[0009] The drill bit assembly includes a shell and a drill rod. The top of the shell is fixedly mounted on the slide plate through symmetrically arranged connecting rods. The transmission shaft of the driving motor extends into the interior of the shell. A driving gear is fixedly mounted on the transmission shaft extending into the interior of the shell. Drill rods are movably mounted in the shell on both sides of the driving gear. One end of the drill rod extends to the outside of the shell. A driven gear is fixedly mounted on the drill rod corresponding to the driving gear. The driving gear and the driven gear are meshed and connected.

[0010] A clearance hole is arranged on the positioning block corresponding to the drill rod, and the clearance hole is communicated with the workpiece positioning groove.

[0011] The workpiece limiting mechanism includes a rack and a limiting head. The cross-section of the rack is "L"-shaped. One end of the rack is fixedly connected to the slide. An assembly column is provided on the positioning block corresponding to the rack. The limiting head is installed on the assembly column through a torsion spring. A limiting rod is provided on the positioning rod on one side of the limiting head. The limiting head is in contact and connected with the limiting rod.

[0012] The limit head is in the shape of a long strip, and an assembly hole is provided at one end of the limit head. The assembly hole of the limit head is movably connected with the assembly column by insertion. An external tooth is provided on the outer circle of one end of the limit head, and a tooth groove is provided on the rack corresponding to the external tooth. A yield groove is provided on the rack on one side of the tooth groove, and the external tooth is meshed with the tooth groove.

[0013] The beneficial effects of the utility model compared with the prior art are:

[0014] The hexagonal steel pipe drilling device can limit the hexagonal steel pipe through the workpiece positioning groove of the positioning block, effectively preventing the workpiece from deflecting to ensure its stability, and can limit the end of the hexagonal steel pipe through the limiting head of the workpiece limiting mechanism, thereby facilitating the positioning of the hexagonal steel pipe in the workpiece positioning groove; the slide plate is driven to rise and fall by the screw mechanism, and then the drill rod of the drill assembly is driven to rotate by the driving motor on the slide plate, so that the hexagonal steel pipe is drilled through the drill rod; the hexagonal steel pipe drilling device has a simple structure, and effectively solves the problems of low work efficiency, deviation of drilling caused by slipping of the handheld drilling machine, and easy scratching of the fingers of the staff when the existing handheld drilling machine is used for drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a front view structural schematic diagram of the utility model;

[0017] Figure 3 for Figure 2 A side view schematic diagram of the structure;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of the hexagonal steel pipe after drilling.

[0019] In the figure: 1. base; 2. positioning block; 3. workpiece positioning groove; 4. assembly plate; 5. fixing plate; 6. screw motor; 7. transmission screw; 8. clearance groove; 9. slide plate; 10. slide groove; 11. drive motor; 12. housing; 13. drill rod; 14. connecting rod; 15. driving gear; 16. driven gear; 17. clearance hole; 18. rack; 19. limit head; 20. assembly column; 21. torsion spring; 22. limit rod; 23. external teeth; 24. tooth groove; 25. hexagonal steel pipe. DETAILED DESCRIPTION

[0020] As attached Figure 1-4 Shown

[0021] The hexagonal steel pipe drilling device includes a base 1, on which a positioning block 2 is fixedly installed. The positioning block 2 is a rectangular body, and a workpiece positioning groove 3 is provided on the positioning block 2. The cross-section of the workpiece positioning groove 3 is hexagonal. When working, the workpiece positioning groove 3 and the hexagonal steel pipe 25 to be drilled can be matched and inserted. The workpiece positioning groove 3 can form a circumferential limit on the hexagonal steel pipe 25 to prevent the hexagonal steel pipe 25 from deflecting during the drilling process, thereby affecting the normal drilling operation.

[0022] An assembly plate 4 is fixedly installed on the base 1 on one side of the positioning block 2. The assembly plate 4 is a long rectangular plate. A slide plate 9 is slidably installed on the assembly plate 4 through a screw mechanism. The screw mechanism includes a fixed plate 5, a screw motor 6 and a transmission screw 7. The fixed plates 5 are arranged on the assembly plate 4 at intervals. A transmission screw 7 is movably installed between the fixed plates 5 through bearings. A screw motor 6 is fixedly installed on the fixed plate 5 corresponding to one end of the transmission screw 7 through a motor mounting seat. The transmission shaft of the screw motor 6 is fixedly connected to one end of the transmission screw 7. When working, the transmission shaft of the screw motor 6 can drive the transmission screw 7 to rotate.

[0023] The transmission screw 7 and the slide plate 9 are threadedly connected by a screw nut. The cross-section of the slide plate 9 is in a "convex" shape. A slide groove 10 is provided on the assembly plate 4 corresponding to the thin-diameter end of the slide plate 9. The slide plate 9 is slidably connected with the slide groove 10. The thin-diameter end of the slide plate 9 extends to the outside of the slide groove 10. The slide plate 9 extending to the outside of the slide groove 10 is provided with a mounting groove. The mounting groove is clamped with the screw nut, and the screw nut is threadedly connected with the transmission screw 7. During operation, when the transmission screw 7 rotates, the slide plate 9 can slide upward or downward along the slide groove 10 with the cooperation of the transmission screw 7 and the screw nut.

[0024] A driving motor 11 is fixedly installed on the slide 9, and a drill bit assembly is installed on the transmission shaft of the driving motor 11. The drill bit assembly includes a shell 12 and a drill rod 13. A connecting rod 14 is symmetrically fixedly installed on the top of the shell 12, and one end of the connecting rod 14 is fixedly connected to the slide 9. The transmission shaft of the driving motor 11 extends into the shell 12 between the two connecting rods 14, and a driving gear 15 is fixedly installed on the transmission shaft extending into the shell 12. The drill rod 13 is movably installed in the shell 12 on both sides of the driving gear 15 through bearings, and one end of the drill rod 13 extends to the outside of the shell 12. A driven gear 16 is fixedly installed on the drill rod 13 corresponding to the driving gear 15, and the driving gear 15 and the driven gear 16 are meshed and connected. When working, the transmission shaft of the driving motor 11 drives the driving gear 15 to rotate, the driving gear 15 drives the driven gear 16 to rotate, and the driven gear 16 drives the drill rod 13 to rotate synchronously, so as to facilitate subsequent drilling operations.

[0025] The drill bit assembly is arranged corresponding to the positioning block 2. The positioning block 2 corresponding to the drill rod 13 is provided with a clearance hole 17. The clearance hole 17 is connected to the workpiece positioning groove 3. The purpose of such arrangement is to facilitate the drill rod 13 to perform drilling operation on the hexagonal steel pipe 25 through the clearance hole 17.

[0026] A workpiece limiting mechanism is installed between the slide plate 9 and the positioning block 2 on one side of the drill assembly. The workpiece limiting mechanism includes a rack 18 and a limiting head 19. The cross-section of the rack 18 is "L"-shaped. One end of the rack 18 is fixedly connected to the slide plate 9. An assembly column 20 is fixedly installed on the positioning block 2 corresponding to the rack 18. The limiting head 19 is installed on the assembly column 20 through a torsion spring 21. The limiting head 19 is in the shape of an elongated strip. An assembly hole is provided at one end of the limiting head 19. The assembly hole of the limiting head 19 is movably connected with the assembly column 20 by plugging. One end of the torsion spring 21 is fixedly connected to the positioning block 2, and the other end of the torsion spring 21 is fixedly connected to the limiting head 19. A limiting rod 22 is provided on the positioning rod on one side of the limiting head 19. When in use, under the elastic force of the torsion spring 21, the limiting head 19 and the limiting rod 22 always maintain contact and connection.

[0027] An external tooth 23 is provided on the outer circle of one end of the limit head 19, a tooth groove 24 is provided on the rack 18 corresponding to the external tooth 23, and a clearance groove 8 is provided on the rack 18 on the meshing tooth side. The purpose of such a setting is to make way for the external tooth 23 of the limit head 19 through the clearance groove 8.

[0028] The outer teeth 23 are meshed and connected with the tooth grooves 24 . During operation, the tooth grooves 24 of the rack 18 cooperate with the outer teeth 23 of the limit head 19 , so that the limit head 19 can be driven to rotate around the assembly column 20 .

[0029] When the hexagonal steel pipe drilling device is in use, first the screw motor 6 drives the transmission screw 7 to rotate clockwise, the slide plate 9 on the transmission screw 7 slides downward along the transmission screw 7 for a distance and then stops the screw motor 6, at this time the slide plate 9 drives the rack 18 to move downward for a distance synchronously, the tooth groove 24 of the rack 18 is disengaged from the outer tooth 23, the outer tooth 23 corresponds to the make way groove 8 of the rack 18, under the action of the torsion spring 21, the limit head 19 always maintains contact and connection with the limit rod 22.

[0030] Then the hexagonal steel pipe 25 to be drilled is inserted into the workpiece positioning groove 3 of the positioning block 2, and the hexagonal steel pipe 25 is pushed to contact and connect with the limit head 19. The limit head 19 forms an axial limit on the hexagonal steel pipe 25, thereby completing the positioning of the hexagonal steel pipe 25 in the workpiece positioning groove 3 of the positioning block 2.

[0031] Restarting the screw motor 6 drives the transmission screw 7 to rotate clockwise, and the slide plate 9 on the transmission screw 7 slides downward along the transmission screw 7. When the slide plate 9 moves downward, the slide plate 9 drives the drive motor 11 and the drill bit assembly to move downward synchronously. The drive motor 11 is started, and the drive motor 11 drives the two drill rods 13 to rotate synchronously through the driving gear 15 and the driven gear 16. The two drill rods 13 pass through the make way hole 17 to perform a hole rotation operation on the hexagonal steel pipe 25.

[0032] After the drilling is completed, the drive motor 11 is stopped and the screw motor 6 is started. The screw motor 6 drives the transmission screw 7 to rotate counterclockwise, and the slide plate 9, the drive motor 11 and the drill assembly on the transmission screw 7 slide upward along the axial direction of the slide groove 10 of the assembly plate 4 until the tooth groove 24 of the rack 18 is engaged with the external tooth 23, and the rack 18 drives the limit head 19 to rotate around the assembly column 20, and the limit head 19 releases the axial limit with the hexagonal steel pipe 25. At this time, the next hexagonal steel pipe 25 to be drilled can be brought into contact with the rear end of the hexagonal steel pipe 25, and the hexagonal steel pipe 25 that has been drilled can be drilled. The hexagonal steel pipe 25 with a hole drilled is pushed out of the workpiece positioning groove 3, and the above steps are repeated. The screw motor 6 drives the transmission screw 7 to rotate clockwise, and the slide plate 9 on the transmission screw 7 slides downward along the transmission screw 7 for a stroke and then stops the screw motor 6. At this time, the tooth groove 24 of the rack 18 is disengaged from the external tooth 23, and the limit head 19 always maintains contact and connection with the limit rod 22, and continues to push the next hexagonal steel pipe 25 to be drilled, so that it conflicts with the limit head 19 to complete the positioning, and the drilling operation on the hexagonal steel pipe 25 is continued in a reciprocating manner.

[0033] The hexagonal steel pipe drilling device can limit the hexagonal steel pipe 25 through the workpiece positioning groove 3 of the positioning block 2, effectively preventing the workpiece from deflecting to ensure its stability, and the end of the hexagonal steel pipe 25 can be limited by the limiting head 19 of the workpiece limiting mechanism, thereby facilitating the positioning of the hexagonal steel pipe 25 in the workpiece positioning groove 3; the slide plate 9 is driven to rise and fall by the screw mechanism, and then the driving motor 11 on the slide plate 9 is used to drive the drill rod 13 of the drill bit assembly to rotate, so that the hexagonal steel pipe 25 is drilled through the drill rod 13; the hexagonal steel pipe drilling device has a simple structure, and effectively solves the problems of low work efficiency, deviation of drilling caused by slipping of the handheld drilling machine, and easy scratching of the fingers of the staff when the existing handheld drilling machine is used for drilling.

Claims

1. A hexagonal steel pipe drilling device, comprising a base (1), characterized in that: A positioning block (2) is fixedly mounted on the base (1), an assembly plate (4) is mounted on the base (1) on one side of the positioning block (2), a slide plate (9) is slidably mounted on the assembly plate (4) via a screw mechanism, a drive motor (11) is mounted on the slide plate (9), a drill assembly is mounted on the transmission shaft of the drive motor (11), the drill assembly is arranged corresponding to the positioning block (2), a workpiece limiting mechanism is arranged between the slide plate (9) on one side of the drill assembly and the positioning block (2), the workpiece limiting mechanism comprises a rack (18) and a limiting head (19), the rack (18) has an "L"-shaped cross section, one end of the rack (18) is fixedly connected to the slide plate (9), and an assembly head (19) is arranged on the positioning block (2) corresponding to the rack (18). The assembly column (20) is provided with a limit head (19) through a torsion spring (21), a limit rod (22) is provided on a positioning rod on one side of the limit head (19), the limit head (19) is in contact with the limit rod (22), the limit head (19) is in a long strip shape, an assembly hole is provided at one end of the limit head (19), the assembly hole of the limit head (19) is movably connected with the assembly column (20) by plugging, an external tooth (23) is provided on the outer circle of one end of the limit head (19), a tooth groove (24) is provided on the rack (18) corresponding to the external tooth (23), a clearance groove (8) is provided on the rack (18) on one side of the tooth groove (24), and the external tooth (23) is meshingly connected with the tooth groove (24).

2. A hexagonal steel pipe drilling device according to claim 1, characterized in that: The positioning block (2) is a rectangular body, and a workpiece positioning groove (3) is provided on the positioning block (2). The cross section of the workpiece positioning groove (3) is hexagonal.

3. A hexagonal steel pipe drilling device according to claim 1, characterized in that: The screw mechanism comprises a fixed plate (5), a screw motor (6) and a transmission screw (7), wherein the fixed plates (5) are arranged on the assembly plate (4) at intervals, and a transmission screw (7) is movably installed between the fixed plates (5), and a screw motor (6) is installed on the fixed plate (5) at one end of the transmission screw (7), a transmission shaft of the screw motor (6) is fixedly connected to one end of the transmission screw (7), and the transmission screw (7) is threadedly connected to the slide plate (9) via a screw nut.

4. A hexagonal steel pipe drilling device according to claim 1, characterized in that: The cross section of the slide plate (9) is in a "convex" shape, a slide groove (10) is provided on the assembly plate (4) corresponding to the thin-diameter end of the slide plate (9), the slide plate (9) and the slide groove (10) are slidably connected, the thin-diameter end of the slide plate (9) extends to the outside of the slide groove (10), and a mounting groove is provided on the slide plate (9) extending to the outside of the slide groove (10), and the mounting groove is clamped with the screw nut.

5. The hexagonal steel pipe drilling device according to claim 1, characterized in that: The drill bit assembly comprises a housing (12) and a drill rod (13); the top of the housing (12) is fixedly mounted on the slide plate (9) via symmetrically arranged connecting rods (14); a transmission shaft of a driving motor (11) extends into the housing (12); a driving gear (15) is fixedly mounted on the transmission shaft extending into the housing (12); drill rods (13) are movably mounted in the housing (12) on both sides of the driving gear (15); one end of the drill rod (13) extends to the outside of the housing (12); a driven gear (16) is fixedly mounted on the drill rod (13) corresponding to the driving gear (15); and the driving gear (15) and the driven gear (16) are meshingly connected.

6. A hexagonal steel pipe drilling device according to claim 5, characterized in that: A clearance hole (17) is provided on the positioning block (2) corresponding to the drill rod (13), and the clearance hole (17) is communicated with the workpiece positioning groove (3).

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