A hand drill
By combining a worm gear screw jack and a bench vise, the problem of inflexible adjustment of fixtures on small drilling machines is solved, enabling precise positioning and stable fixation of workpieces, and improving drilling accuracy and operational flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA TIANSHUO MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-03
Smart Images
Figure CN224444643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drilling machines, specifically a manual drilling machine. Background Technology
[0002] A drilling machine is a machine tool that mainly uses a drill bit to machine holes in a workpiece. Among them, small drilling machines are widely used in environments such as homes, factories, and workshops due to their ease of movement and flexible operation. Whether drilling metals, plastics, or other materials, small drilling machines can provide stable and efficient processing performance. In the existing technology, small drilling machines generally use a pressing method, drilling holes in the workpiece by raising and lowering the drill bit. The drilling fixture is not flexible in adjustment, which causes deviations in drilling accuracy. Summary of the Invention
[0003] To overcome the above-mentioned shortcomings, this utility model provides a manual drilling machine.
[0004] The technical solution adopted by this utility model is as follows:
[0005] A manual drilling machine includes a base plate, with four supports fixedly connected to the top corners of the base plate. The tops of the four supports are fixedly connected to the bottom of a table. A housing is fixedly connected between the table and the outer wall of the base plate. A worm gear screw jack is fixedly installed at the bottom center of the table. The right end of the input shaft of the worm gear screw jack extends through the right side of the housing. A handwheel is fixedly connected to the right end of the input shaft of the worm gear screw jack. The input shaft of the worm gear screw jack is rotatably connected to the housing. The top of the table has a lifting platform. Four guide tubes are fixedly connected to the bottom of the table. The four guide tubes are located at the bottom corners of the lifting platform, and the tops of the guide tubes extend through the top of the table. Guide rods are fixedly connected to the bottom corners of the lifting platform. The top of the screw of the worm gear screw jack extends through the table. There is a gap between the screw of the worm gear screw jack and the table. The top of the screw of the worm gear screw jack is rotatably connected to the bottom center of the lifting platform. The guide rods are slidably inserted into the guide tubes. The bottom ends of the four guide rods are connected to the lifting platform. A fixed connecting frame is used. A bench vise is installed on the top of the lifting platform. A manual lifting mechanism is installed on the rear side of the top of the platform. The manual lifting mechanism has a lifting seat. The top and bottom of the front side wall of the lifting seat are fixedly connected to protruding plates. Between the two protruding plates are a vertical rod and two guide rails. The two guide rails are distributed on the left and right sides and are fixedly connected to the outer wall of the lifting seat. The vertical rod is located between the two guide rails. The two ends of the vertical rod are fixedly connected to the middle of the two protruding plates respectively. The outer walls of the two guide rails are slidably engaged with sliders. The outer wall of the vertical rod is fitted with sliders. A connecting plate is fixedly connected between the front ends of sliders. A compression spring is fitted on the vertical rod. The two ends of the compression spring are fixedly connected to the bottom of sliders and the top of the lower protruding plate respectively. A card is fixedly connected to the top of the front side wall of the connecting plate. A bracket is fixedly connected to the bottom of the front side wall of the connecting plate. The bracket extends forward. An electric drill is installed between the card and the bracket. The electric drill is a manual electric drill. Pressure rods are fixedly connected to the middle of the left and right side walls of the bracket.
[0006] The manual lifting mechanism includes a support frame, which is vertically fixed to the top rear side of the platform. The support frame is strip-shaped, and guide rails are fixedly connected to the left and right side walls of the support frame. The guide rails extend vertically. A lifting seat is sleeved on the outer wall of the support frame. A slider is fixedly connected to the left and right inner walls of the lifting seat. The slider is slidably engaged with the guide rails. A threaded rod is rotatably connected between the inner top wall and inner bottom wall of the support frame. The threaded rod passes through the lifting seat and is threadedly connected to the lifting seat. The top end of the threaded rod passes through the top of the support frame and is fixedly connected to the throttle handle.
[0007] The top of the lifting platform has several slots that extend forward and backward and are evenly distributed left and right. The cross-section of the slots is convex. The bottom of the bench vise is fixedly connected to the front and rear ends of the left and right sides. The top of the fixed plate is inserted with a stud, the bottom end of which extends into the slot. The bottom end of the stud is fixedly connected to a locking block, which is inside the slot and slides into the slot. The outer wall of the stud is fitted with a locking nut, and the stud and the locking nut are threaded together. The locking nut presses against the top of the fixed plate.
[0008] An installation port is opened at the front end of the bracket, and the end of the electric drill is inserted into the installation port. A locking screw is inserted into the front end of the right side wall of the bracket, and the bracket and the screw are threadedly connected. The locking screw abuts against the outer wall of the electric drill.
[0009] The bench vise includes a base plate 2, a vertical plate 1, a vertical plate 2, and a clamping plate. The base plate 2 is located on the upper part of the lifting platform. Two plates are fixedly connected to the bottom of the outer walls on both sides of the base plate 2. The upper ends of the base plate 2 are vertically fixedly connected to the vertical plate 1 and the vertical plate 2. A clamping plate is located between the vertical plate 1 and the vertical plate 2. A lead screw passes through the vertical plate 2 and is threadedly connected to the vertical plate 2. A handle is fixedly connected to the end of the lead screw. The lead screw is rotatably connected to the clamping plate. The bottom of the clamping plate is slidably engaged with the upper part of the base plate 2.
[0010] The beneficial effects of this utility model are:
[0011] This utility model of a worm gear screw jack enables a wide range of workpiece height adjustment, while the screw drive achieves micron-level precise positioning of the electric drill, forming a two-stage adjustment mechanism for coarse and fine machining, facilitating the adjustment of processing and drilling heights. The workpiece is clamped and fixed between the clamping plate and the first vertical plate. The end of the electric drill is inserted into the mounting port of the bracket, and the locking screw is rotated to press against the drill housing, completing a quick fixation. The second base plate is flexible and allows for easy adjustment and fixation of the workpiece position. The return force of the compression spring facilitates rapid drill reset, enabling continuous drilling operations and reducing labor intensity. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a cross-sectional view of the outer casing of this utility model;
[0014] Figure 3 yes Figure 1 The front view;
[0015] Figure 4 yes Figure 3 Enlarged view of point A in the middle;
[0016] Figure 5 yes Figure 1 The right view;
[0017] Figure 6 yes Figure 5 Enlarged view at point B in the middle;
[0018] Figure 7 yes Figure 1 A magnified view of a portion of the image.
[0019] The reference numerals in all the attached drawings are as follows: 1. Base plate one; 2. Support column; 3. Tabletop; 4. Outer shell; 5. Worm gear screw jack; 6. Handwheel; 7. Lifting platform; 8. Guide tube; 9. Guide rod; 10. Connecting frame; 11. Slot; 12. Bench vise; 13. Fixing plate; 14. Stud; 15. Locking block; 16. Locking nut; 17. Support frame; 18. Guide rail one; 19. Lifting seat; 20. Slider one; 21. Threaded rod; 22. Thruster; 23. Protruding plate; 24. Guide rail two; 25. Vertical rod; 26. Connecting plate; 27. Slider two; 28. Slider three; 29. Compression spring; 30. Card seat; 31. Bracket; 32. Mounting port; 33. Locking screw; 34. Electric drill; 35. Pressure rod; 121. Base plate two; 122. Vertical plate one; 123. Clamping plate; 124. Vertical plate two; 125. Lead screw; 126. Handle. Detailed Implementation
[0020] like Figure 1-7As shown: A manual drilling machine includes a base plate 1, with four support columns 2 fixedly connected to the top corners of the base plate 1. The tops of the four support columns 2 are fixedly connected to the bottom of a table 3. A housing 4 is fixedly connected between the table 3 and the outer wall of the base plate 1. A worm gear screw jack 5 is fixedly installed in the middle of the bottom of the table 3. The right end of the input shaft of the worm gear screw jack 5 extends through the right side of the housing 4. A handwheel 6 is fixedly connected to the right end of the input shaft of the worm gear screw jack 5. The input shaft of the worm gear screw jack 5 is rotatably connected to the housing 4. The top of the table 3 has a lifting platform 7. Four guide tubes 8 are fixedly connected to the bottom of the lifting platform 7, located at the four bottom corners of the platform 7. The top of the guide tubes 8 penetrates the top of the platform 3. Guide rods 9 are fixedly connected to the four bottom corners of the lifting platform 7. The top of the screw of the worm gear screw jack 5 penetrates the platform 3, with a gap between the screw of the worm gear screw jack 5 and the platform 3. The top of the screw of the worm gear screw jack 5 is rotatably connected to the middle of the bottom of the lifting platform 7. The guide rods 9 are slidably inserted into the guide tubes 8. A connecting frame 10 is fixedly connected between the bottom ends of the four guide rods 9. The top of the lifting platform 7 is equipped with... The bench vise 12 has a manual lifting mechanism on the top rear side of the table 3. The manual lifting mechanism has a lifting seat 19. The top and bottom of the front side wall of the lifting seat 19 are fixedly connected to protruding plates 23. Between the two protruding plates 23 are a vertical rod 25 and two guide rails 24, distributed left and right. The guide rails 24 are fixedly connected to the outer wall of the lifting seat 19. The vertical rod 25 is located between the two guide rails 24, with both ends fixedly connected to the middle of the two protruding plates 23. The outer walls of the two guide rails 24 are slidably engaged with sliders 27. The outer wall is fitted with slider 28. The front end of slider 27 and slider 28 is fixedly connected to connecting plate 26. Compression spring 29 is fitted on vertical rod 25. The two ends of compression spring 29 are fixedly connected to the bottom of slider 28 and the top of the lower convex plate 23, respectively. The top of the front side wall of connecting plate 26 is fixedly connected to card seat 30. The bottom of the front side wall of connecting plate 26 is fixedly connected to bracket 31. Bracket 31 extends forward. Electric drill 34 is installed between card seat 30 and bracket 31. Electric drill 34 is a manual electric drill. Pressure rod 35 is fixedly connected to the middle of the left and right side walls of bracket 31.
[0021] The manual lifting mechanism includes a support frame 17, which is vertically fixed to the top rear side of the platform 3. The support frame 17 is in the shape of a strip frame. The left and right side walls of the support frame 17 are fixedly connected to guide rails 18, which extend vertically. The outer wall of the support frame 17 is fitted with a lifting seat 19. The left and right inner walls of the lifting seat 19 are fixedly connected to sliders 20, which slide and engage with the guide rails 18. A threaded rod 21 is rotatably connected between the inner top wall and the inner bottom wall of the support frame 17. The threaded rod 21 passes through the lifting seat 19 and is threadedly connected to the lifting seat 19. The top end of the threaded rod 21 passes through the top of the support frame 17 and is fixedly connected to a throttle handle 22.
[0022] The top of the lifting platform 7 has several slots 11. The slots 11 extend back and forth and are evenly distributed left and right. The cross-section of the slots 11 is convex. The bottom left and right sides of the bench vise 12 are fixedly connected to the fixing plates 13. The top of the fixing plates 13 is inserted with studs 14. The bottom end of the studs 14 extends into the slots 11. The bottom end of the studs 14 is fixedly connected to the locking blocks 15. The locking blocks 15 are inside the slots 11 and slide and engage with the slots 11. The outer wall of the studs 14 is fitted with locking nuts 16. The studs 14 and locking nuts 16 are threadedly connected. The locking nuts 16 press against the top of the fixing plates 13.
[0023] The bracket 31 has an installation port 32 at its front end. The end of the electric drill 34 is inserted into the installation port 32. A locking screw 33 is inserted into the front end of the right side wall of the bracket 31. The bracket 31 and the screw 33 are threadedly connected. The locking screw 33 abuts against the outer wall of the electric drill 34.
[0024] The bench vise 12 includes a base plate 121, a vertical plate 122, a vertical plate 124, and a clamping plate 123. The base plate 121 is located on the upper part of the lifting platform 7. Two plates 13 are fixedly connected to the bottom of the outer walls on both sides of the base plate 121. The upper two ends of the base plate 121 are vertically fixedly connected to the vertical plate 122 and the vertical plate 124. The clamping plate 123 is located between the vertical plate 122 and the vertical plate 124. The lead screw 125 passes through the vertical plate 124 and is threadedly connected to the vertical plate 124. The end of the lead screw 125 is fixedly connected to the handle 126. The lead screw 125 is rotatably connected to the clamping plate 123. The bottom of the clamping plate 123 is slidably engaged with the upper part of the base plate 121.
[0025] The workpiece to be processed is clamped and fixed between the clamping plate 123 and the upright plate 122. The end of the electric drill 34 is inserted into the mounting port 32 of the bracket 31, and the locking screw 33 is rotated to make it press against the outer shell of the electric drill 34, thus completing the quick fixation.
[0026] Loosen the locking nut 16 of the bench vise 12, push the fixing plate 13 to make the locking block 15 slide along the slot 11, achieving precise front-to-back positioning of the workpiece. Retighten the locking nut 16, and the convex structure of the slot 11 prevents the workpiece from shifting laterally. The base plate 121 is flexible and can easily adjust and fix the workpiece position.
[0027] The handwheel 6 drives the worm gear screw jack 5, which in turn drives the lifting platform 7 to rise and fall via the screw drive. The guide rod 9 slides along the guide tube 8 to ensure the vertical movement of the lifting platform 7 and adjust the workpiece to the appropriate processing height. The worm gear screw jack 5 is self-locking through the self-locking function of the worm gear.
[0028] Rotating the throttle 22 drives the threaded rod 21 to rotate, causing the lifting seat 19 to move up and down along the guide rail 18. The slider 20 cooperates with the guide rail 18 to ensure motion accuracy, and the electric drill 34 is adjusted to be close to the initial position of the workpiece.
[0029] Start the electric drill 34, hold the pressure rod 35 with both hands and apply downward pressure. The pressure rod 35 drives the connecting plate 26 to move down through the bracket 31. The second slider 27 slides along the second guide rail 24, and the third slider 28 compresses the compression spring 29.
[0030] The electric drill 34 feeds vertically along with the connecting plate 26. After completing the drilling action, it releases pressure, and the compression spring 29 pushes the connecting plate 26 to automatically reset.
[0031] The worm gear screw jack 5 and bench vise 12 in this utility model are existing technology devices, and their structures will not be described in detail.
Claims
1. A hand drill, comprising a bottom plate (1), the top of the bottom plate (1) is fixedly connected with four supporting columns (2), the top of the four supporting columns (2) is fixedly connected with a table top (3), and the outer wall between the table top (3) and the bottom plate (1) is fixedly connected with an outer shell (4), characterized in that, A worm gear screw jack (5) is fixedly installed at the bottom center of the tabletop (3). The right end of the input shaft of the worm gear screw jack (5) passes through the right side of the outer casing (4). The right end of the input shaft of the worm gear screw jack (5) is fixedly connected to a handwheel (6). The input shaft of the worm gear screw jack (5) is rotatably connected to the outer casing (4). The top of the tabletop (3) has a lifting platform (7). The bottom of the tabletop (3) is fixedly connected to four guide tubes (8). The four guide tubes (8) are located at the bottom of the four corners of the lifting platform (7). The top of the guide tubes (8) passes through the top of the tabletop (3). The bottom of the lifting platform (7) has four guide tubes (8). The guide rod (9) is fixedly connected at an angle. The top of the screw of the worm gear screw jack (5) passes through the table surface (3). There is a gap between the screw of the worm gear screw jack (5) and the table surface (3). The top of the screw of the worm gear screw jack (5) is rotatably connected to the middle of the bottom of the lifting platform (7). The guide rod (9) is slidably inserted into the guide tube (8). The bottom ends of the four guide rods (9) are fixedly connected to the connecting frame (10). A bench vise (12) is set on the top of the lifting platform (7). A manual lifting mechanism is set on the rear side of the top of the table surface (3). The manual lifting mechanism has a lifting seat (19). The top and bottom of the front side wall of 19) are fixedly connected to the convex plate (23). There is a vertical rod (25) and two guide rails (24) between the two convex plates (23). The two guide rails (24) are distributed on the left and right. The guide rails (24) are fixedly connected to the outer wall of the lifting seat (19). The vertical rod (25) is located between the two guide rails (24). The two ends of the vertical rod (25) are fixedly connected to the middle of the two convex plates (23) respectively. The outer walls of the two guide rails (24) are slidably engaged with the sliders (27). The outer walls of the vertical rod (25) are sleeved with the sliders (28). The sliders (27) and (28) are connected to the sliders (28). 8) The front end is fixedly connected to the connecting plate (26), the vertical rod (25) is sleeved with the compression spring (29), the two ends of the compression spring (29) are fixedly connected to the bottom of the slider three (28) and the top of the lower convex plate (23) respectively, the top of the front side wall of the connecting plate (26) is fixedly connected to the card seat (30), the bottom of the front side wall of the connecting plate (26) is fixedly connected to the bracket (31), the bracket (31) extends forward, the card seat (30) and the bracket (31) are clamped together to install the electric drill (34), the electric drill (34) is a manual electric drill, and the middle of the left and right side walls of the bracket (31) are fixedly connected to the pressure rod (35).
2. A hand drill according to claim 1, wherein The manual lifting mechanism includes a support frame (17), which is vertically fixed to the top rear side of the platform (3). The support frame (17) is in the shape of a strip frame. The left and right side walls of the support frame (17) are fixedly connected to the first guide rail (18). The first guide rail (18) extends up and down. The outer wall of the support frame (17) is fitted with the lifting seat (19). The left and right inner walls of the lifting seat (19) are fixedly connected to the first slider (20). The first slider (20) is slidably engaged with the first guide rail (18). The inner top wall and inner bottom wall of the support frame (17) are rotatably connected to the threaded rod (21). The threaded rod (21) passes through the lifting seat (19). The threaded rod (21) is threadedly connected to the lifting seat (19). The top end of the threaded rod (21) passes through the top of the support frame (17) and is fixedly connected to the throttle (22).
3. The hand drill according to claim 1, wherein The top of the lifting platform (7) has several slots (11) extending forward and backward, and the slots (11) are evenly distributed left and right. The cross-section of the slots (11) is convex. The bottom left and right sides of the bench vise (12) are fixedly connected to the fixing plate (13). The top of the fixing plate (13) is inserted with a stud (14). The bottom end of the stud (14) extends into the slot (11). The bottom end of the stud (14) is fixedly connected to the locking block (15). The locking block (15) is inside the slot (11). The locking block (15) slides and engages with the slot (11). The outer wall of the stud (14) is fitted with a locking nut (16). The stud (14) and the locking nut (16) are threadedly connected. The locking nut (16) abuts against the top of the fixing plate (13).
4. The hand drill according to claim 1, wherein An installation port (32) is opened at the front end of the bracket (31), and the end of the electric drill (34) is inserted into the installation port (32). A locking screw (33) is inserted into the front end of the right side wall of the bracket (31). The bracket (31) and the screw (33) are threadedly connected, and the locking screw (33) abuts against the outer wall of the electric drill (34).
5. The hand drill according to claim 1, wherein The bench vise (12) includes a base plate 2 (121), a vertical plate 1 (122), a vertical plate 2 (124), and a clamping plate (123). The base plate 2 (121) is located on the upper part of the lifting platform (7). Two (13) are fixedly connected to the bottom of the outer walls on both sides of the base plate 2 (121). The upper two ends of the base plate 2 (121) are vertically fixedly connected to the vertical plate 1 (122) and the vertical plate 2 (124). There is a clamping plate (123) between the vertical plate 1 (122) and the vertical plate 2 (124). The screw (125) passes through the vertical plate 2 (124). The screw (125) is threadedly connected to the vertical plate 2 (124). The end of the screw (125) is fixedly connected to the handle (126). The screw (125) is rotatably connected to the clamping plate (123). The bottom of the clamping plate (123) is slidably engaged with the upper part of the base plate 2 (121).