Bolt hitting auxiliary device for handheld drill
By designing a bolt-punching auxiliary device for hand-held drills, using the ring control mechanism and preventing components to accurately control the number of rotations and torque, the problem of existing hand-held drills being inflexible in the number of rotations and torque control is solved, and the screw or bolts are improved.
Patent Information
- Application Number
- CN202420930318.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing hand-held drills are not flexible enough in the number of rotations and torque control, and it is difficult to adapt to some working conditions that require the number of screws or bolts to rotate.
A bolt-beating auxiliary device for hand-held drilling is designed, including a three-jaw chuck, a ring control mechanism and a blocking assembly. Accurate control of the number of rotations of the hand-held drill and the screw or bolt torque is achieved by counting the ring piece and preventing the friction disc from continuing to rotate using the stopping assembly.
The device can simply control the number of rotations of the hand-held drill and the torque of the screw or bolt, so that the torque of the same batch of screws or bolts is consistent with the number of rotations, and improve the screw or bolt's screw quality.
Smart Images
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Abstract
Description
Technical Field
[0001] The present application relates to the technical field of drilling auxiliary equipment, and in particular to a bolt driving auxiliary device for a handheld drill. Background Art
[0002] In industrial production, bolt connectors are often used to connect and fix two structures. A handheld drill is a commonly used bolt driving tool. By clamping a cross head, a slotted head, a hexagonal head or other bolt driving heads on the chuck at the end of the handheld drill, the bolts can be quickly tightened.
[0003] A handheld drill is disclosed in the related art, referring to Figure 1 , including a main body 01 and a clamping head 02, the clamping head 02 is used to clamp the crosshead, and the main body 01 drives the clamping head 02 to rotate.
[0004] During the use of the above technology, workers control the number of rotations of the handheld drill completely based on experience, so that the torque and number of rotations of different bolts are different. However, it is difficult to apply to work situations where the number of screw or bolt tightening turns on some equipment is required, and there are shortcomings. Utility Model Content
[0005] In order to improve the problem that the number of rotations of a handheld drill is inconvenient to control, the present application provides a bolt driving auxiliary device for a handheld drill.
[0006] The present application provides a handheld drill bolt driving auxiliary device that adopts the following technical solution:
[0007] A bolt driving auxiliary device for a handheld drill comprises a handheld drill body and a three-jaw chuck, wherein a frame is arranged on the handheld drill body, a circle control mechanism for controlling the number of rotations of the three-jaw chuck is arranged on the frame, the circle control mechanism comprises a friction disk arranged on the three-jaw chuck, a circle recording member for recording the number of rotations of the friction disk and a stop assembly for preventing the friction disk from rotating are arranged on the frame.
[0008] By adopting the above technical scheme, the worker first installs the friction disc on the three-jaw chuck, and then predetermines the number of rotations of the friction disc through the circle counting member according to the designed number of turns that the screw or bolt needs to be screwed. When the three-jaw chuck drives the friction disc to rotate and reaches the predetermined number of turns, the blocking assembly will prevent the friction disc from continuing to rotate, and the friction disc drives the three-jaw chuck to stop rotating synchronously, thereby achieving the control of the number of rotations of the handheld drill and the torque of the screw or bolt at the same time. The operation is simple, and the torque and number of turns of the screws or bolts of the same batch are the same, which is beneficial to improving the screwing quality of the screws or bolts.
[0009] Optionally, the three-jaw chuck is provided with a connecting handle with a polygonal cross section, the connecting handle is detachably arranged on the handheld drill body, the connecting handle is provided with a clamping block with a polygonal cross section, and the friction disc is slidably sleeved on the clamping block.
[0010] By adopting the above technical solution, as the workers use the chuck for a longer time, when the friction disc is worn to failure, the workers can replace the friction disc and make the friction disc and the three-jaw chuck rotate synchronously at the same time.
[0011] Optionally, the frame includes a first plate and a second plate, the first plate is detachable from the second plate, and the first plate is used to clamp the handheld drill body on the second plate.
[0012] By adopting the above technical solution, workers can quickly install the frame on the handheld drill body. At the same time, through the first plate body and the second plate body of different sizes, it can be suitable for handheld drills of different sizes, which is conducive to improving the applicability of the device.
[0013] Optionally, the circle counting member includes a circle counting hole opened on the friction disk, and a circle counting sensor electrically connected to the control system is provided on the second plate body, and the sensing end of the circle counting sensor faces the circle counting hole.
[0014] By adopting the above technical solution, the worker inputs the number of turns that the screw or bolt needs to be tightened into the control system. When the friction disk rotates, the lap counting sensor passes through the lap counting hole and feeds back the number of laps to the control system until the number of laps fed back by the lap counting sensor reaches the number of laps input by the worker.
[0015] Optionally, the stopping assembly includes a stopping block arranged on the frame, the stopping block is provided with a sliding groove, a friction block slides in the sliding groove, the friction block is used to press against the friction plate, and the stopping block is provided with a sliding member for driving the friction block to slide.
[0016] By adopting the above technical solution, when the number of turns fed back by the turn counting sensor reaches the number of turns input by the worker, the sliding part pushes the friction block tightly against the friction disk, the friction disk and the friction block rub against each other and consume the kinetic energy of the friction disk's rotation by generating heat, thereby causing the three-jaw chuck to stop rotating synchronously, thereby controlling the number of turns of the screw or bolt.
[0017] Optionally, the circumferential outer wall of the friction block in the sliding direction is in close contact with the circumferential inner wall of the slide groove, and the sliding member includes a hose connected to the inner wall of the slide groove of the stopping block, the hose is connected to an air pump, and the air pump is electrically connected to a control system.
[0018] By adopting the above technical solution, when the number of laps fed back by the lap counting sensor reaches the number of laps input by the worker, the control system starts the air pump, and the air pump inflates the slide groove of the stop block through the hose. The air pressure in the slide groove increases and pushes the friction block close to the friction plate, so that the friction block is pressed against the friction plate, thereby preventing the friction plate from continuing to rotate.
[0019] Optionally, the stopping assembly includes a stopping plate disposed on the frame, the stopping plate having clamping blocks symmetrically arranged about the friction disk, the two clamping blocks slide toward or away from each other on the stopping plate at the same time, and the stopping plate is provided with a driving member for driving the clamping blocks to slide.
[0020] By adopting the above technical solution, when the number of turns fed back by the lap counting sensor reaches the number of turns input by the worker, the driving member drives the two clamping blocks to approach each other, so that the friction disc is clamped between the two clamping blocks, and the friction disc is quickly stopped by the friction force between the clamping blocks and the friction disc.
[0021] Optionally, the driving member includes a rotating motor disposed on the blocking plate and electrically connected to the control system, a bidirectional screw is coaxially disposed on the output shaft of the rotating motor, and two clamping blocks are respectively threadedly connected to both ends of the bidirectional screw.
[0022] By adopting the above technical solution, the control system starts the rotating motor, and the output shaft of the rotating motor drives the bidirectional screw to rotate forward, so that the two clamping blocks approach each other, so that the friction disk is clamped by the two clamping blocks, thereby achieving the blocking effect on the friction disk.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The worker first installs the friction disc on the three-jaw chuck, and then uses the circle counting member to preset the number of rotations of the friction disc according to the designed number of turns that the screw or bolt needs to be screwed. When the three-jaw chuck drives the friction disc to rotate and reaches the preset number of turns, the stop assembly will prevent the friction disc from continuing to rotate, and the friction disc drives the three-jaw chuck to stop rotating synchronously, thereby controlling the number of rotations of the handheld drill and the torque of the screw or bolt at the same time. The operation is simple, and the torque and number of turns of the screws or bolts of the same batch are the same, which is conducive to improving the screwing quality of the screws or bolts;
[0025] 2. The worker inputs the number of turns of the screw or bolt to be tightened into the control system. When the friction disk rotates, the turn counting sensor passes through the turn counting hole and feeds back the number of turns to the control system until the number of turns fed back by the turn counting sensor reaches the number of turns input by the worker;
[0026] 3. When the number of laps fed back by the lap counter sensor reaches the number of laps input by the worker, the control system starts the air pump, which inflates the slide groove of the stop block through a hose. The air pressure in the slide groove increases and pushes the friction block closer to the friction plate, so that the friction block is pressed against the friction plate, thereby preventing the friction plate from continuing to rotate. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural diagram in the background technology.
[0028] Figure 2 It is a structural diagram of Example 1 of the present application.
[0029] Figure 3 It is a cross-sectional view showing the positional relationship among the stop block, friction disc and friction block in Example 1 of the present application.
[0030] Figure 4 It is a structural schematic diagram of the positional relationship among the rotating motor, friction disk and bidirectional screw in Example 2 of the present application.
[0031] Explanation of the reference numerals in the accompanying drawings: 01, main body; 02, clamping head; 1, hand-held drill body; 2, three-jaw chuck; 3, frame; 31, first plate body; 32, second plate body; 4, circle control mechanism; 41, friction disc; 42, circle counting member; 421, circle counting hole; 422, circle counting sensor; 43, stop assembly; 431, stop block; 432, slide groove; 433, friction block; 434, sliding member; 4341, hose; 4342, air pump; 435, stop plate; 436, clamping block; 437, driving member; 4371, rotating motor; 4372, bidirectional screw; 5, connecting handle; 6, clamping block; 7, clamping notch. DETAILED DESCRIPTION
[0032] The following is combined with Figure 2-4 This application is described in further detail.
[0033] The embodiment of the present application discloses a bolt driving auxiliary device for a handheld drill.
[0034] Example 1
[0035] Reference Figure 2 and Figure 3 A bolt driving auxiliary device for a handheld drill comprises a handheld drill body 1 and a three-jaw chuck 2, a frame 3 is arranged on the handheld drill body 1, a circle control mechanism 4 for controlling the number of rotations of the three-jaw chuck 2 is arranged on the frame 3, the circle control mechanism 4 comprises a friction disk 41 arranged on the three-jaw chuck 2, a circle recording member 42 for recording the number of rotations of the friction disk 41 and a stopping component 43 for preventing the friction disk 41 from rotating are arranged on the frame 3.
[0036] Reference Figure 2 and Figure 3The frame 3 includes a first plate 31 and a second plate 32. The first plate 31 is bolted to the second plate 32 by countersunk screws. The first plate 31 is used to clamp the handheld drill body 1 on the second plate 32. A connecting handle 5 with a polygonal cross section is coaxially welded on the three-jaw chuck 2. The connecting handle 5 can be detached from the handheld drill body 1. A block 6 with a polygonal cross section is coaxially and integrally formed on the connecting handle 5. The friction plate 41 is slidably sleeved on the block 6.
[0037] Reference Figure 2 and Figure 3 The circle counting member 42 includes a circle counting hole 421 opened on the friction plate 41 , and a circle counting sensor 422 electrically connected to the control system is bolted to the second plate body 32 , and the sensing end of the circle counting sensor 422 faces the circle counting hole 421 .
[0038] Reference Figure 2 and Figure 3 The stopping assembly 43 includes a stopping block 431 welded on the second plate body 32, a sliding groove 432 is provided on the stopping block 431, the opening end of the sliding groove 432 faces the friction disk 41, a friction block 433 slides in the sliding groove 432, and a clamping groove 7 with a V-shaped cross-section is provided on the friction block 433. The clamping groove 7 is used to press against the circumferential outer wall of the friction disk 41, and a sliding member 434 for driving the friction block 433 to slide is arranged on the stopping block 431.
[0039] Reference Figure 2 and Figure 3 The circumferential outer wall of the friction block 433 in the sliding direction is tightly attached to the circumferential inner wall of the slide groove 432. The sliding member 434 includes a hose 4341 connected to the inner wall of the slide groove 432 of the stopping block 431. The connection point between the hose 4341 and the inner wall of the slide groove 432 is located on the side of the friction block 433 facing away from the friction disk 41. The hose 4341 is connected to the air pump 4342 (not shown in the figure), and the air pump 4342 is electrically connected to the control system.
[0040] The implementation principle of Example 1 is as follows: the worker first clamps the handheld drill body 1 on the second plate body 32 through the first plate body 31, then sleeves the friction disc 41 on the clamping block 6, and finally inserts the three-jaw chuck 2 into the handheld drill body 1 through the connecting handle 5 and locks it.
[0041] Then the worker inputs the value of the required number of turns of the screw or bolt into the control system according to the designed number of turns that the screw or bolt needs to be turned. The three-jaw chuck 2 drives the friction disk 41 to rotate. During this process, the turn sensor 422 counts the number of turns through the turn counting hole 421 and feeds back the number of turns to the control system until the predetermined number of turns is gradually reached.
[0042] At this time, the control system starts the air pump 4342, and the air pump 4342 inflates the slide groove 432 of the stop block 431 through the hose 4341. The air pressure in the slide groove 432 increases and pushes the friction block 433 close to the friction disk 41. The clamping groove 7 on the friction block 433 clamps on the edge of the circumferential outer wall of the friction disk 41, so that the friction disk 41 stops quickly, and the friction disk 41 drives the three-jaw chuck 2 to stop synchronously, thereby realizing the control of the torque and number of turns of the screw or bolt.
[0043] Example 2
[0044] refer to Figure 4 The difference between this embodiment and embodiment 1 is that: the stopping assembly 43 includes a stopping plate 435 welded on the second plate body 32, and the stopping plate 435 is symmetrically arranged with clamping blocks 436 about the friction disk 41. The two clamping blocks 436 slide toward or away from each other on the stopping plate 435 at the same time, and the stopping plate 435 is arranged with a driving member 437 for driving the clamping blocks 436 to slide.
[0045] Reference Figure 4 The driving member 437 includes a rotating motor 4371 bolted to the stop plate 435 and electrically connected to the control system. A bidirectional screw 4372 is coaxially welded on the output shaft of the rotating motor 4371, and two clamping blocks 436 are respectively threadedly connected to two reverse threaded sections of the bidirectional screw 4372.
[0046] The implementation principle of Example 2 is as follows: when the number of turns fed back by the turn sensor 422 reaches the number of turns input by the worker, the control system starts the rotating motor 4371, and the output shaft of the rotating motor 4371 drives the bidirectional screw 4372 to rotate forward, so that the two clamping blocks 436 approach each other until the friction disk 41 is clamped, and under the action of the friction force between the clamping blocks 436 and the friction disk 41, the friction disk 41 stops quickly, and the friction disk 41 drives the three-jaw chuck 2 to stop synchronously, thereby realizing the control of the torque and the number of turns of the screw or bolt.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A bolt driving auxiliary device for a handheld drill, comprising a handheld drill body (1) and a three-jaw chuck (2), characterized in that: The handheld drill body (1) is provided with a frame (3), the frame (3) is provided with a circle control mechanism (4) for controlling the number of rotations of the three-jaw chuck (2), the circle control mechanism (4) comprises a friction disc (41) provided on the three-jaw chuck (2), the frame (3) is provided with a circle recording member (42) for recording the number of rotations of the friction disc (41) and a stop assembly (43) for preventing the friction disc (41) from rotating.
2. A bolt driving auxiliary device for a handheld drill according to claim 1, characterized in that: The three-jaw chuck (2) is provided with a connecting handle (5) with a polygonal cross section. The connecting handle (5) is detachably arranged on the handheld drill body (1). The connecting handle (5) is provided with a clamping block (6) with a polygonal cross section. The friction disc (41) is slidably sleeved on the clamping block (6).
3. The bolt driving auxiliary device for a handheld drill according to claim 1, characterized in that: The frame (3) comprises a first plate (31) and a second plate (32); the first plate (31) is detachable from the second plate (32); and the first plate (31) is used to clamp the handheld drill body (1) on the second plate (32).
4. The bolt driving auxiliary device for a handheld drill according to claim 3, characterized in that: The circle counting member (42) comprises a circle counting hole (421) formed on the friction disk (41); a circle counting sensor (422) electrically connected to a control system is provided on the second plate body (32); and a sensing end of the circle counting sensor (422) faces the circle counting hole (421).
5. The bolt driving auxiliary device for a handheld drill according to claim 4, characterized in that: The stopping assembly (43) comprises a stopping block (431) arranged on the frame (3), a sliding groove (432) being provided on the stopping block (431), a friction block (433) sliding in the sliding groove (432), the friction block (433) being used to press against the friction disk (41), and a sliding member (434) driving the friction block (433) to slide is provided on the stopping block (431).
6. The bolt driving auxiliary device for a handheld drill according to claim 5, characterized in that: The circumferential outer wall of the friction block (433) in the sliding direction is tightly attached to the circumferential inner wall of the slide groove (432), and the sliding member (434) includes a hose (4341) connected to the inner wall of the slide groove (432) of the stopping block (431), and the hose (4341) is connected to the air pump (4342), and the air pump (4342) is electrically connected to the control system.
7. The bolt driving auxiliary device for a handheld drill according to claim 4, characterized in that: The stopping assembly (43) comprises a stopping plate (435) arranged on the frame (3), and clamping blocks (436) are arranged symmetrically with respect to the friction disk (41) on the stopping plate (435), and the two clamping blocks (436) slide on the stopping plate (435) towards or away from each other at the same time, and a driving member (437) is arranged on the stopping plate (435) for driving the clamping blocks (436) to slide.
8. The bolt driving auxiliary device for a handheld drill according to claim 7, characterized in that: The driving member (437) includes a rotating motor (4371) disposed on the stop plate (435) and electrically connected to the control system, a bidirectional screw (4372) is coaxially disposed on the output shaft of the rotating motor (4371), and two clamping blocks (436) are respectively threadedly connected to the two ends of the bidirectional screw (4372).