Drilling machine tapping limiting device
By installing pressure sensors and electromagnetic mechanisms on the drilling machine, precise control of tapping depth is achieved, and the problem of inaccurate depth control in traditional drilling machine tapping is solved, and processing efficiency and product quality are improved.
Patent Information
- Application Number
- CN202422314773.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In traditional drilling machine tapping, employees control the tapping depth based on their feelings, resulting in low product processing efficiency and high scrap rate, which makes mass production impossible.
The tap depth is detected by using a pressure sensor, and the connection between the drill bit and the driving mechanism is disconnected through the electromagnetic mechanism to ensure that the tapping head stops moving when it reaches the limited depth, and the tap depth is accurately controlled through the slide bar and the scale.
It achieves precise control of tapping depth, improves processing efficiency, reduces scrap rate, and ensures consistency of product quality and feasibility of mass production.
Smart Images
Figure CN223300993U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drilling machine tapping, in particular to a drilling machine tapping limiting device. Background Art
[0002] Traditional drilling and tapping methods rely on employees' intuition. Previously, products processed were basically through-threaded and had no size restrictions, making processing relatively simple. However, the tapped holes in current products are not through-threaded, so employees rely solely on their intuition to control the depth of the holes when tapping. They are unable to accurately control the tapping depth of the tapping head, resulting in reduced product processing efficiency and an increase in substandard products. This situation makes it impossible to achieve mass production of products, resulting in a large amount of waste loss during the processing process. Utility Model Content
[0003] In response to the deficiencies in the prior art, the utility model provides a drilling machine tapping limit device which uses a pressure sensor to ensure that the drilling machine lifting column stops moving when the tapping head is about to exceed a specified depth, and disconnects the drill bit mounting portion from the driving mechanism through an electromagnetic mechanism to ensure that the tapping head stops rotating and moving downward. The device is simple, efficient, safe, reliable and easy to operate.
[0004] The utility model is realized through the following technical scheme, which provides a drilling machine tapping limit device, including a base, a drilling machine lifting column fixed on the base, and a drilling machine main unit fixed on the end of the drilling machine lifting column away from the base; a drill bit mounting part extending along the axial direction of the drilling machine lifting column is rotatably provided on the drilling machine main unit, and a driving mechanism for driving the drill bit mounting part to rotate is fixed on the drilling machine main unit; a tapping head is coaxially fixed on the end of the drill bit mounting part facing the base; the drill bit mounting part is connected to the driving mechanism through an electromagnetic mechanism, and a pressure sensor connected to the electromagnetic mechanism is provided on the drilling machine main unit; the detection end of the pressure sensor faces the base along the axial direction of the tapping head, and the pressure sensor is located on one side of the tapping head; the drilling machine lifting column is connected to the pressure sensor; the pressure sensor is used to ensure that the drilling machine lifting column stops moving when the tapping head is about to exceed a limited depth, and the electromagnetic mechanism is used to disconnect the drill bit mounting part from the driving mechanism to ensure that the tapping head stops rotating and moves downward.
[0005] As an optimization, a through hole extending along the axial direction of the tapping head is provided on the main drilling machine. A sliding rod sliding along the axial direction of the through hole is provided in the through hole, and the pressure sensor is located at the end of the sliding rod facing the base; the position of the pressure sensor is adjusted by sliding the sliding rod in the through hole, so that different tapping depths can be detected.
[0006] As an optimization, a screw hole connected to the through hole is opened on the main body of the drilling machine, and a bolt is rotated in the screw hole; the position of the sliding rod is fixed by the bolt to prevent the sliding rod from being displaced.
[0007] As an optimization, the slide rod is provided with a scale extending along the axis of the slide rod; the tapping depth of the tapping head is confirmed by the scale.
[0008] As an optimization, the sliding rod is provided with a through hole extending along the axial direction of the tapping head, and the pressure sensor is fixed with a guide rod extending along the axial direction of the tapping head. The guide rod passes through the reset spring and the through hole in sequence toward one end of the sliding rod and is connected to the sliding rod; the reset spring and the guide rod are used to prevent the sliding rod from being damaged due to squeezing.
[0009] As an optimization, the pressure sensor has an annular structure and is mounted on the tapping head, with the tapping head perpendicular to the side of the pressure sensor facing the base. By mounting the pressure sensor on the tapping head, it is ensured that the pressure sensor can detect materials in all directions, preventing the movement trajectory of the pressure sensor from not intersecting with the material when tapping the edge of the material.
[0010] As an optimization, a rotating shaft is coaxially fixed to the drill bit mounting part, and a sliding groove extending along the axial direction of the rotating shaft is provided on the rotating shaft; the electromagnetic mechanism includes an electromagnetic disk A fixed to the output shaft of the driving mechanism and an electromagnetic disk B slidably arranged on the sliding groove, and the electromagnetic disk B is connected to a commutator, which is connected to the pressure sensor; the commutator is used to prevent the electromagnetic mechanism from wearing.
[0011] The beneficial effects of the utility model are as follows: the pressure sensor is used to ensure that the drilling machine lifting column stops moving when the tapping head is about to exceed the specified depth, and the electromagnetic mechanism is used to disconnect the connection between the drill bit mounting part and the driving mechanism to ensure that the tapping head stops rotating and moving downward; the position of the pressure sensor is adjusted by a sliding rod sliding in the through hole, so that different tapping depths can be detected; the position of the sliding rod is fixed by a bolt to prevent the sliding rod from being displaced; the tapping depth of the tapping head is confirmed by a ruler; the reset spring and the guide rod are used to prevent the sliding rod from being damaged by being squeezed; the pressure sensor is used to ensure that the pressure sensor can detect materials in all directions, so as to prevent the movement trajectory of the pressure sensor from not intersecting with the material when tapping the edge of the material; and the commutator is used to prevent the electromagnetic mechanism from being worn. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the utility model;
[0013] Figure 2 This is a schematic diagram of the electromagnetic mechanism structure of the utility model;
[0014] As shown in the figure:
[0015] 1. Base, 2. Drilling machine lifting column, 3. Drilling machine main unit, 4. Drill bit mounting part, 5. Driving mechanism, 6. Tapping head, 7. Electromagnetic mechanism, 8. Pressure sensor, 9. Clamping mechanism, 10. Slide rod, 11. Fixed block, 12. Bolt, 13. Scale, 14. Guide rod, 15. Return spring, 16. Rotating shaft, 17. Commutator, 18. Material, 701. Electromagnetic disk A, 702. Electromagnetic disk B, 1601. Slide. DETAILED DESCRIPTION
[0016] In order to clearly illustrate the technical features of this solution, this solution is described below through specific implementation methods.
[0017] like Figure 1 and Figure 2 The drilling machine tapping limit device of the utility model shown in the figure includes a base 1, a drilling machine lifting column 2 is fixedly provided on the base 1, and a drilling machine main unit 3 is fixedly provided on the end of the drilling machine lifting column 2 away from the base 1; a drill bit mounting part 4 extending axially along the drilling machine lifting column 2 is rotatably provided on the drilling machine main unit 3, and a driving mechanism 5 for driving the drill bit mounting part 4 to rotate is fixed on the drilling machine main unit 3; a tapping head 6 is coaxially fixed to the end of the drill bit mounting part 4 facing the base 1; the drill bit mounting part 4 is connected to the driving mechanism 5 through an electromagnetic mechanism 7, and a pressure sensor 8 connected to the electromagnetic mechanism 7 is provided on the drilling machine main unit 3; the detection end of the pressure sensor 8 is axially toward the base 1 along the tapping head 6, and the pressure sensor 8 is located on one side of the tapping head 6; the drilling machine lifting column 2 is connected to the pressure sensor 8.
[0018] The base 1 extends in the horizontal direction, the drilling machine lifting column 2 extends in the vertical direction, the axis of the drill bit mounting part 4 extends in the vertical direction, and the tapping head 6 extends in the vertical direction; the driving mechanism 5 is the existing technology and adopts a motor; the two ends of the electromagnetic mechanism 7 are respectively connected to the driving mechanism 5 and the drill bit mounting part 4; the pressure sensor 8 can be replaced by a proximity sensor, and the detection end of the proximity sensor extends downward in the vertical direction; a clamping mechanism 9 for clamping the material 18 is provided on the base 1, and the clamping space of the clamping mechanism 9 is located directly below the tapping head 6.
[0019] The material 18 is placed on the base 1 and clamped by the clamping mechanism 9; the driving mechanism 5 and the electromagnetic mechanism 7 are started, and the driving mechanism 5 drives the drill mounting part 4 to rotate through the electromagnetic mechanism 7, and the drill mounting part 4 drives the tapping head 6 to rotate synchronously; the drilling machine lifting column 2 is started, and the drilling machine lifting column 2 drives the drilling machine main body 3, the drill mounting part 4, the tapping head 6 and the pressure sensor 8 to move downward in the vertical direction, and the tapping head 6 gradually approaches the material 18 and taps the material 18; as the tapping head 6 moves downward, the pressure sensor 8 gradually approaches the material 18 until the bottom of the pressure sensor 8 contacts the material 18; if the tapping head 6 continues to move downward, the pressure sensor 8 detects the pressure change and sends a signal, and the drilling machine lifting column 2 is closed after receiving the signal, and the drilling machine main body 3, the drill mounting part 4, the tapping head 6 and the pressure sensor 8 stop moving downward; the electromagnetic mechanism 7 receives the signal and is closed, and the transmission between the driving mechanism 5 and the drill mounting part 4 stops, and the tapping head 6 stops moving under the action of the tapping hole opened in the material 18.
[0020] like Figure 1 The drilling machine main body 3 shown is provided with a through hole extending axially along the tapping head 6, and a slide rod 10 sliding axially along the through hole is provided in the through hole, and the pressure sensor 8 is located at the end of the slide rod 10 facing the base 1; the axis of the through hole extends in the vertical direction, and the slide rod 10 extends in the vertical direction; a fixed block 11 is fixed on the drilling machine main body 3, and the through hole is located on the fixed block 11; the fixed blocks 11 are respectively located on both sides of the drill bit mounting part 4.
[0021] The slide rod 10 slides in the through hole, and the slide rod 10 drives the pressure sensor 8 to move in the vertical direction until the pressure sensor 8 moves to a specified position, and then the movement of the slide rod 10 stops.
[0022] like Figure 1 The drilling machine main body 3 is provided with a screw hole connected to the through hole, and a bolt 12 is rotated in the screw hole.
[0023] The pressure sensor 8 moves to a specified position, the bolt 12 is tightened, and the slide rod 10 is fastened to the drilling machine mainframe 3.
[0024] like Figure 1 The slide bar 10 is provided with a scale 13 extending axially along the slide bar 10 ; the bottom of the fixed block 11 extends horizontally, and the position of the scale 13 is confirmed by the bottom of the fixed block 11 .
[0025] The bottom of the pressure sensor 8 is flush with the bottom of the tapping head 6, and the corresponding scale 13 on the slide bar 10 is recorded, and the distance that the scale 13 needs to move is calculated according to the depth of tapping required; the slide bar 10 is slid in the through hole until the designated scale of the scale 13 reaches the designated position, and the slide bar 10 drives the pressure sensor 8 to move to the designated position in the vertical direction, and the movement of the slide bar 10 is stopped.
[0026] like Figure 1 The shown slide rod 10 is provided with a through hole extending axially along the tapping head 6, and the pressure sensor 8 is fixedly provided with a guide rod 14 extending axially along the tapping head 6. The guide rod 14 passes through the reset spring 15 and the through hole in sequence toward one end of the slide rod 10 and is connected to the slide rod 10; the axis of the through hole extends in the vertical direction, and the guide rod 14 extends in the vertical direction; the guide rod 14 passes through the reset spring 15 upward in sequence toward one end of the slide rod 10 and is slid into the through hole, and a limiting mechanism is fixed to the end of the guide rod 14 passing through the through hole to prevent the guide rod 14 from detaching from the through hole.
[0027] The bottom of the pressure sensor 8 contacts the material 18, and the tapping head 6 continues to move downward; the pressure sensor 8 stops moving under the action of the material 18, the guide rod 14 slides upward in the perforation, and the reset spring 15 contracts under the push of the pressure sensor 8.
[0028] like Figure 1 The pressure sensor 8 shown is an annular structure, and the pressure sensor 8 is sleeved on the tapping head 6 , and the tapping head 6 is perpendicular to the side of the pressure sensor 8 facing the base 1 .
[0029] like Figure 2 The drill bit mounting portion 4 shown is coaxially fixed with a rotating shaft 16, and a slide groove 1601 extending axially along the rotating shaft 16 is provided on the rotating shaft 16; the electromagnetic mechanism 7 includes an electromagnetic disk A701 fixed to the output shaft of the driving mechanism 5 and an electromagnetic disk B702 slidably arranged on the slide groove 1601, the electromagnetic disk B702 is connected to the commutator 17, and the commutator 17 is connected to the pressure sensor 8; the slide grooves 1601 are evenly arranged in sequence around the rotating shaft 16, and the number of the slide grooves 1601 is greater than or equal to three.
[0030] The electromagnetic mechanism 7 is started, the electromagnetic disk A701 and the electromagnetic disk B702 attract each other, and the electromagnetic disk B702 moves upward along the slide groove 1601 under the action of gravity. The electromagnetic disk A701 and the electromagnetic disk B702 are attracted to each other, and the driving mechanism 5 moves through the electromagnetic mechanism 7 to drive the rotating shaft 16 to rotate; the pressure sensor 8 sends a signal after detecting the pressure, and the commutator 17 switches the current direction after receiving the signal, and the magnetic field direction of the electromagnetic disk B702 changes. The electromagnetic disk B702 and the electromagnetic disk A701 repel each other, and the electromagnetic disk B702 moves downward along the slide groove 1601 under the action of repulsion, and the electromagnetic mechanism 7 stops transmission.
[0031] During the actual production process, the pressure sensor 8 and the bottom of the tapping head 6 are flush, the corresponding scale 13 on the slide bar 10 is recorded, and the distance that the scale bar 13 needs to move is calculated according to the depth of tapping required; the slide bar 10 is slid in the through hole until the specified scale of the scale bar 13 reaches the specified position, and the slide bar 10 drives the pressure sensor 8 to move to the specified position in the vertical direction, stops moving the slide bar 10 and tightens the bolt 12, and the slide bar 10 is fastened to the drilling machine host 3.
[0032] The material 18 is placed on the base 1 and clamped by the clamping mechanism 9; the driving mechanism 5 and the electromagnetic mechanism 7 are started, the electromagnetic magnetic disk A701 and the electromagnetic magnetic disk B702 attract each other, and the electromagnetic magnetic disk B702 moves upward along the slide 1601 under the action of gravity. The electromagnetic magnetic disk A701 and the electromagnetic magnetic disk B702 are adsorbed on each other, and the driving mechanism 5 moves through the electromagnetic mechanism 7 to drive the rotating shaft 16 and the drill mounting part 4 to rotate, and the drill mounting part 4 drives the tapping head 6 to rotate synchronously; the drilling machine lifting column 2 is started, and the drilling machine lifting column 2 drives the drilling machine main body 3, the drill mounting part 4, the tapping head 6 and the pressure sensor 8 to move downward in the vertical direction, and the tapping head 6 gradually approaches the material 18 and taps the material 18.
[0033] As the tapping head 6 moves downward, the pressure sensor 8 gradually approaches the material 18 until the bottom of the pressure sensor 8 contacts the material 18; if the tapping head 6 continues to move downward, the pressure sensor 8 stops moving under the action of the material 18, the guide rod 14 slides upward in the perforation, and the return spring 15 contracts under the push of the pressure sensor 8; the pressure sensor 8 detects the pressure change and sends a signal, and the drilling machine lifting column 2 is closed after receiving the signal, and the drilling machine main unit 3, the drill bit mounting part 4, the tapping head 6 and the pressure sensor 8 stop moving downward; the commutator 17 switches the current direction after receiving the signal, the magnetic field direction of the electromagnetic disk B702 changes, the electromagnetic disk B702 and the electromagnetic disk A701 repel each other, and the electromagnetic disk B702 moves downward along the slide groove 1601 under the action of the repulsive force, the electromagnetic mechanism 7 stops transmission, and the transmission between the drive mechanism 5 and the drill bit mounting part 4 stops, and the tapping head 6 stops moving under the action of the tapping hole opened in the material 18.
[0034] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved through or by adopting existing technologies, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.
Claims
1. A drilling machine tapping limit device, comprising a base (1), a drilling machine lifting column (2) fixedly provided on the base (1), a drilling machine main unit (3) fixedly provided on one end of the drilling machine lifting column (2) away from the base (1); a drill bit mounting portion (4) axially extending along the drilling machine lifting column (2) is rotatably provided on the drilling machine main unit (3), and a driving mechanism (5) for driving the drill bit mounting portion (4) to rotate is fixedly provided on the drilling machine main unit (3); a tapping head (6) is coaxially fixedly provided on one end of the drill bit mounting portion (4) facing the base (1); and the device is characterized in that: The drill bit mounting portion (4) is connected to the driving mechanism (5) via an electromagnetic mechanism (7); a pressure sensor (8) connected to the electromagnetic mechanism (7) is provided on the drilling machine mainframe (3); a detection end of the pressure sensor (8) is axially directed toward the base (1) along the tapping head (6), and the pressure sensor (8) is located on one side of the tapping head (6); and a drilling machine lifting column (2) is connected to the pressure sensor (8).
2. The drilling machine tapping limiter according to claim 1, characterized in that: A through hole extending along the axial direction of the tapping head (6) is provided on the drilling machine main body (3), a slide rod (10) sliding along the axial direction of the through hole is provided in the through hole, and a pressure sensor (8) is located at one end of the slide rod (10) facing the base (1).
3. The drilling machine tapping limiter according to claim 2, characterized in that: A screw hole connected to the through hole is provided on the drilling machine main body (3), and a bolt (12) is rotated in the screw hole.
4. The drilling machine tapping limiter according to claim 2, characterized in that: The slide bar (10) is provided with a scale (13) extending along the axial direction of the slide bar (10).
5. The drilling machine tapping limiter according to claim 2, characterized in that: The slide bar (10) is provided with a through hole extending along the axial direction of the tapping head (6); the pressure sensor (8) is fixed with a guide rod (14) extending along the axial direction of the tapping head (6); one end of the guide rod (14) toward the slide bar (10) passes through the reset spring (15) and the through hole in sequence and is connected to the slide bar (10).
6. The drilling machine tapping limiter according to claim 1, characterized in that: The pressure sensor (8) is an annular structure, and the pressure sensor (8) is sleeved on the tapping head (6), and the tapping head (6) is perpendicular to the side of the pressure sensor (8) facing the base (1).
7. The drilling machine tapping limiter according to claim 1, characterized in that: A rotating shaft (16) is coaxially fixed to the drill bit mounting portion (4), and a sliding groove (1601) extending axially along the rotating shaft (16) is provided on the rotating shaft (16); the electromagnetic mechanism (7) comprises an electromagnetic disk A (701) fixed to the output shaft of the driving mechanism (5) and an electromagnetic disk B (702) slidingly arranged on the sliding groove (1601), the electromagnetic disk B (702) is connected to a commutator (17), and the commutator (17) is connected to a pressure sensor (8).