CN219786653U - Clamp bracket for bench drill - Google Patents

Abstract

The utility model relates to the technical field of bench drills, in particular to a clamp bracket for the bench drill, which comprises a base and vertical plates, wherein the upper surface of the base is fixedly connected with two vertical plates, the outer wall of each vertical plate is fixedly connected with a frame, a fixing mechanism is arranged in the frame, the upper surface of the base is fixedly connected with a bracket, and the bracket and the base are respectively connected with the outer walls at two ends of a second screw rod in a rotating way through bearings. Through the cooperation between worm, handle, worm wheel, screw thread section of thick bamboo, first screw rod, clamp plate, sleeve and the slide bar, the handle drives the worm and rotates, and worm drive worm wheel rotates, and worm wheel drive screw thread section of thick bamboo rotates, and screw thread section of thick bamboo drive first screw rod downstream, first screw rod drive clamp plate downstream, sleeve and slide bar play the guide effect to the clamp plate, and the clamp plate of both sides is fixed the both sides of small-size work piece, because the design of clamp plate shape does not influence the drill bit and drills to small-size work piece, and small-size work piece both sides are fixed, and the atress is compared with all.

Description

A clamp bracket for bench drills

Technical field

The utility model relates to the technical field of bench drills, and is specifically a clamp bracket used by bench drills.

Background technique

Drilling is the most common machining operation. In actual production, drilling of small and medium-sized workpieces is usually completed on a bench drill.

For example, the clamp bracket used in the bench drill with the patent number CN216029490U uses the turning of the rotating rod to press the pressing block against the workpiece to be drilled to achieve the fixation of the workpiece to be drilled. Because of the rotating rod, the human hand can be kept away from the workpiece. The drilling area also improves the safety of drilling small workpieces. The above documents still have shortcomings. When the first small workpiece is drilled, the small workpiece is fixed with a pressing block and pressed above the through hole. , however, the pressure block is pressed at the center of the small workpiece, and the drill bit cannot drill the small workpiece. If the pressure block is pressed at the edge of the small workpiece, when the drill bit drills the small workpiece, the small workpiece will be under stress. Unevenness will cause movement, resulting in poor fixation of small workpieces when drilling. At the same time, when the drill bit drills the workpiece, scraps will be discharged from the position where the workpiece is drilled, and the scraps may rotate with the drill bit. When the drill bit rotates, the chips will fly out under the action of inertia, causing the chips to accidentally injure the operator during drilling.

Utility model content

The purpose of this utility model is to propose a clamp bracket for bench drills in order to solve the problem in the prior art that small workpieces have poor fixing effects when drilling.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

Design a clamp bracket for bench drills, including a base and a vertical plate. Two vertical plates are fixed on the upper surface of the base. A frame is fixed on the outer wall of the vertical plate. A fixing mechanism is provided inside the frame. , a bracket is fixedly connected to the upper surface of the base, and the bracket and the base are rotationally connected to the outer walls at both ends of the second screw through bearings. The outer wall of the second screw is threadedly connected with a threaded block, and the outer wall of the threaded block is connected to the outer wall of the second screw. The brackets are slidingly connected, a horizontal plate is fixed on the outer wall of the threaded block, and a protective mechanism is provided below the horizontal plate.

Preferably, the fixing mechanism includes a worm, the outer walls of both ends of the worm are rotationally connected to the frame through bearings, a handle is fixed to the end of the worm, the worm is meshed with a worm gear, and the worm gear is fixed to the thread. The outer wall of the barrel, the outer walls at both ends of the threaded barrel are rotationally connected to the frame through bearings, the inside of the threaded barrel is threadedly connected to a first screw, the lower end of the first screw is fixedly connected to a pressure plate, and the upper surface of the pressure plate A sleeve is fixedly connected, the sleeve is slidingly connected to the outer wall of the sliding rod, and the sliding rod is fixedly connected to the lower surface of the frame.

Preferably, the protection mechanism includes a first protective shell fixed on the lower surface of the horizontal plate, and a second protective shell slidingly connected to the inside of the first protective shell. The first protective shell A spring is provided inside, and both ends of the spring are fixedly connected to the first protective shell and the second protective shell respectively.

Preferably, the second screw is fixedly connected to the output shaft of the first motor, the first motor is fixed on the upper surface of the bracket, and a through hole is provided inside the base.

Preferably, a second motor is fixed inside the first protective shell, and a drill bit is fixed on the output shaft of the second motor.

The utility model proposes a clamp bracket used for a bench drill. The beneficial effect is that through the cooperation between the worm, the handle, the worm gear, the threaded barrel, the first screw, the pressure plate, the sleeve and the sliding rod, the handle drives the worm to rotate, and the worm The worm gear is driven to rotate, and the worm gear drives the threaded barrel to rotate. The threaded barrel drives the first screw to move downward. The first screw drives the pressure plate to move downward. The sleeve and sliding rod guide the pressure plate. The pressure plates on both sides move the two sides of the small workpiece. Due to the design of the shape of the pressure plate, it does not affect the drilling of small workpieces by the drill bit. Small workpieces are fixed on both sides, and the stress is comparable. The fixing effect of small workpieces when drilling is better.

Through the cooperation between the first protective shell, the second protective shell and the spring, during the descending process of the protective mechanism, the second protective shell first fits with the workpiece or the pressure plates on both sides. At this time, the second protective shell no longer continues to descend. The second protective shell retracts into the first protective shell, the spring is compressed, the drill bit contacts the workpiece, and the small workpiece is drilled. When drilling, the first protective shell and the second protective shell play a protective role on the drill bit. , to prevent material chips from flying out during drilling, thereby preventing material chips from accidentally injuring the operator during drilling.

Description of the drawings

Figure 1 is a schematic structural diagram of the utility model;

Figure 2 is a structural cross-sectional view of the utility model;

Figure 3 is a schematic structural diagram of the connection between the worm, handle and worm gear in the present utility model;

Figure 4 is a schematic structural diagram of the medium pressure plate of the present utility model;

Figure 5 is a schematic structural diagram of the connection between the bracket, the first motor and the second screw of the utility model.

In the picture: 1. Base, 2. Vertical plate, 3. Fixed mechanism, 301. Worm, 302. Handle, 303. Worm gear, 304. Threaded barrel, 305. First screw, 306. Pressure plate, 307. Sleeve, 308 , sliding rod, 3a1, hydraulic cylinder, 3a2, slider, 4. protection mechanism, 401. first protective shell, 402. second protective shell, 403. spring, 5. frame, 6. bracket, 7. first motor , 8. Second screw, 9. Threaded block, 10. Horizontal plate, 11. Second motor, 12. Drill bit, 13. Through hole.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings:

Example 1:

Refer to Figures 1-5: In this embodiment, a clamp bracket used for a bench drill includes a base 1 and a vertical plate 2. Two vertical plates 2 are fixed on the upper surface of the base 1, and the vertical plates 2 on both sides are symmetrically arranged. , a frame 5 is fixed to the outer wall of the vertical plate 2, and a fixing mechanism 3 is provided inside the frame 5. The fixing mechanism 3 is convenient for fixing the workpiece without affecting drilling. A bracket 6 is fixed to the upper surface of the base 1, and the bracket 6 The base 1 and the base 1 are rotatably connected to the outer walls at both ends of the second screw 8 through bearings. The outer wall of the second screw 8 is threadedly connected with a threaded block 9. The second screw 8 drives the threaded block 9 to slide. The outer wall of the threaded block 9 is slidably connected to the bracket 6. , the outer wall of the threaded block 9 is fixed with a horizontal plate 10, the threaded block 9 drives the horizontal plate 11 to move, a protective mechanism 4 is provided below the horizontal plate 10, the protective mechanism 4 prevents scraps from flying out during drilling, the second screw 8 and The output shaft of the first motor 7 is fixedly connected. The first motor 7 drives the second screw 8 to rotate. The first motor 7 is fixed on the upper surface of the bracket 6. A through hole 13 is provided inside the base 1. The through hole 13 facilitates the drilling 12 Carry out drilling.

The fixing mechanism 3 includes a worm 301, a handle 302, a worm wheel 303, a threaded barrel 304, a first screw 305, a pressure plate 306, a sleeve 307 and a sliding rod 308. The outer walls of both ends of the worm 301 are rotationally connected to the frame 5 through bearings. A handle 302 is fixed at the end. The handle 302 drives the worm 301 to rotate. The worm 301 is meshed with the worm gear 303. The worm 301 drives the worm gear 303 to rotate. The worm gear 303 is fixed on the outer wall of the threaded barrel 304. The worm gear 303 drives the threaded barrel 304 to rotate. The thread The outer walls at both ends of the barrel 304 are rotationally connected to the frame 5 through bearings. The interior of the threaded barrel 304 is threadedly connected with a first screw 305. The threaded barrel 304 drives the first screw 305 to move. The lower end of the first screw 305 is fixedly connected with a pressure plate 306. A screw 305 drives the pressure plate 306 to move. A sleeve 307 is fixed on the upper surface of the pressure plate 306. The sleeve 307 is slidingly connected to the outer wall of the sliding rod 308. The sliding rod 308 is fixed on the lower surface of the frame 5. The sliding rod 308 and the sleeve 307 plays a guiding role for the pressure plate 306;

The handle 302 drives the worm 301 to rotate, the worm 301 drives the worm gear 303 to rotate, the worm gear 303 drives the threaded barrel 304 to rotate, the threaded barrel 304 drives the first screw 305 to move downward, the first screw 305 drives the pressure plate 306 to move downward, the sleeve 307 and the slide The rod 308 guides the pressure plate 306, and the pressure plates 306 on both sides fix both sides of the small workpiece. Due to the design of the shape of the pressure plate 306, it does not affect the drilling of the small workpiece by the drill bit 12, and the two sides of the small workpiece are fixed and protected. Compared with the force, the fixation effect of small workpieces is better when drilling.

The protection mechanism 4 includes a first protective shell 401, a second protective shell 402 and a spring 403. The first protective shell 401 is fixed on the lower surface of the horizontal plate 10. The horizontal plate 10 drives the first protective shell 301 to move. The first protective shell 401 There is a second protective shell 402 slidingly connected inside. The second protective shell 402 slides inside the first protective shell 401. A spring 403 is provided inside the first protective shell 401. The model of the spring 403 is selected according to the actual use requirements to meet the work requirements. If necessary, the two ends of the spring 403 are fixedly connected to the first protective shell 401 and the second protective shell 402 respectively. The second motor 11 is fixedly connected to the inside of the first protective shell 401, and the output shaft of the second motor 11 is fixedly connected to The drill bit 12, the second motor 11 drives the drill bit 12 to rotate, and the model of the motor is selected according to the actual use requirements to meet the work needs;

During the descending process of the protective mechanism 4, the second protective shell 402 first fits the workpiece or the pressure plates 306 on both sides. At this time, the second protective shell 402 no longer continues to descend, and the second protective shell 402 retracts back to the first protective shell 401. , the spring 403 is compressed, the drill bit 12 contacts the workpiece, and the small workpiece is drilled. When drilling, the first protective shell 401 and the second protective shell 402 play a protective role on the drill bit 12 to avoid materials during drilling. The chips fly out, thus preventing the operator from being accidentally injured by chips during drilling.

working principle:

When using the fixture bracket used by this bench drill, place the small workpiece that needs to be drilled between the base 1 and the two pressure plates 306. At the same time, make the drilling position above the through hole 13, and turn the handles 302 on both sides. The handle 302 drives the worm 301 to rotate, the worm 301 drives the worm gear 303 to rotate, the worm gear 303 drives the threaded barrel 304 to rotate, the threaded barrel 304 drives the first screw 305 to move downward, the first screw 305 drives the pressure plate 306 to move downward, the sleeve 307 and the slide The rod 308 guides the pressure plate 306, and the pressure plates 306 on both sides fix both sides of the small workpiece. Due to the design of the shape of the pressure plate 306, it does not affect the drilling of the small workpiece by the drill bit 12, and the two sides of the small workpiece are fixed and protected. The force comparison is the same, and the fixing effect of small workpieces is better when drilling. Start the second motor 11, and the second motor 11 drives the drill bit 12 to rotate. Start the first motor 7, and the first motor 7 drives the second screw 8 to rotate. The second screw 8 drives the threaded block 9 to slide downward. The threaded block 9 drives the first protective shell 401 to descend through the horizontal plate 10, and then drives the second motor 11 and the drill bit 12 to descend. During the descending process of the protective mechanism 4, the second protective shell 402 first fits the workpiece or the pressure plates 306 on both sides. At this time, the second protective shell 402 no longer continues to descend. The second protective shell 402 retracts into the first protective shell 401, the spring 403 is compressed, and the drill bit 12 contacts the workpiece. When drilling small workpieces, the first protective shell 401 and the second protective shell 402 play a protective role on the drill bit 12 to prevent material chips from flying out during drilling, thereby avoiding the possibility of accidents during drilling. There are scraps of material that accidentally injure the operator.

Example 2:

Referring to Figures 1-5: In this embodiment, a clamp bracket is used for a bench drill. The fixing mechanism 3 also includes a hydraulic cylinder 3a1 and a slider 3a2. The hydraulic cylinder 3a1 is fixed inside the base 1. The hydraulic cylinder 3a1 The hydraulic rod is fixedly connected with the slider 3a2. The hydraulic cylinder 3a1 drives the slider 3a2 to slide. The outer wall of the slider 3a2 is slidingly connected to the base 1. The upper surface of the slider 3a2 is fixedly connected to the vertical plate 2. The slider 3a2 drives the vertical plate 2 to move. , in Embodiment 2, the vertical plate 2 is slidingly connected to the base 1;

Through the cooperation between the hydraulic cylinder 3a1 and the slider 3a2, the hydraulic cylinder 3a1 drives the slider 3a2 to slide, the slider 3a2 drives the vertical plate 2 to slide, and drives the fixing mechanism 3 to move through the frame 5. The position of the pressure plate 306 can be adjusted to facilitate both parties. The side pressure plate 306 fixes workpieces of different sizes.

working principle:

Start the hydraulic cylinder 3a1, the hydraulic cylinder 3a1 drives the slider 3a2 to slide, the slider 3a2 drives the vertical plate 2 to slide, and drives the fixing mechanism 3 to move through the frame 5. The position of the pressure plate 306 can be adjusted to facilitate the pressure plates 306 on both sides to adjust the pressure of different sizes. The workpiece is fixed.

Although the present invention has been illustrated and described with reference to preferred embodiments, it will be understood by those of ordinary skill in the art that various changes in form and details may be made within the scope of the claims.

Claims (5)

1. A clamp bracket used for bench drills, including a base (1) and a vertical plate (2). Two vertical plates (2) are fixedly connected to the upper surface of the base (1). It is characterized in that: the vertical plate A frame (5) is fixed to the outer wall of the board (2), a fixing mechanism (3) is provided inside the frame (5), and a bracket (6) is fixed to the upper surface of the base (1). The bracket (6) and the base (1) are rotatably connected to the outer walls of both ends of the second screw (8) through bearings. The outer wall of the second screw (8) is threadedly connected with a threaded block (9). The threaded block (9) The outer wall of the threaded block (9) is slidably connected to the bracket (6). A horizontal plate (10) is fixed to the outer wall of the threaded block (9), and a protective mechanism (4) is provided below the horizontal plate (10). 2. A clamp bracket for a bench drill according to claim 1, characterized in that: the fixing mechanism (3) includes a worm (301), and the outer walls of both ends of the worm (301) are connected to the frame ( 5) Rotation connection, the end of the worm (301) is fixed with a handle (302), the worm (301) is meshed with the worm gear (303), and the worm gear (303) is fixed on the threaded barrel (304) The outer walls of the threaded barrel (304) are rotatably connected to the frame (5) through bearings. The inside of the threaded barrel (304) is threadedly connected with a first screw (305). The first screw (305) ) is fixedly connected to a pressure plate (306) at its lower end, and a sleeve (307) is fixedly connected to the upper surface of the pressure plate (306). The sleeve (307) is slidingly connected to the outer wall of the sliding rod (308). The rod (308) is fixed on the lower surface of the frame (5). 3. A clamp bracket for bench drills according to claim 1, characterized in that: the protection mechanism (4) includes a first protective shell (401), and the first protective shell (401) is fixed on On the lower surface of the horizontal plate (10), a second protective shell (402) is slidably connected to the inside of the first protective shell (401), and a spring (403) is provided inside the first protective shell (401), so Both ends of the spring (403) are fixedly connected to the first protective shell (401) and the second protective shell (402) respectively. 4. A clamp bracket for bench drills according to claim 1, characterized in that: the second screw (8) is fixedly connected to the output shaft of the first motor (7), and the first motor (7) ) is fixed on the upper surface of the bracket (6), and a through hole (13) is provided inside the base (1). 5. A clamp bracket for bench drills according to claim 3, characterized in that: a second motor (11) is fixedly connected inside the first protective shell (401), and the second motor (11) ) has a drill bit (12) fixedly connected to its output shaft.