Clamping tool for bench drill machining

Abstract

The utility model discloses a clamping tool for bench drill machining, which belongs to the technical field of clamping tools and comprises a base, a bench drill body is mounted at the upper end of the base, connecting plates are fixedly connected to the left end and the right end of the base respectively, and fixing plates are fixedly connected to the front ends of the connecting plates respectively. According to the scheme, the clamping mechanism drives the pair of clamping blocks and the multiple pairs of movable straight barrels to move in the opposite directions, a workpiece is clamped and fixed, the clamping blocks and the multiple pairs of movable straight barrels are clamped, and the clamping blocks and the multiple pairs of movable straight barrels are clamped and fixed; meanwhile, the telescopic deformation mechanism is matched to drive the multiple pairs of movable straight cylinders to perform adaptive telescopic deformation according to the appearance of the workpiece, so that the shape of the clamping block and the multiple movable straight cylinders after deformation can be matched with the outer end of the workpiece, the workpiece can be fully and comprehensively clamped and fixed, meanwhile, clamping tools do not need to be replaced back and forth, time waste is reduced, and the working efficiency is improved. Delayed machining of the workpiece is avoided, and the machining efficiency of the workpiece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tooling, and more specifically to a clamping tooling for bench drilling. Background Art

[0002] A clamping tool is a process device used to quickly fasten the workpiece during processing to keep it fixed. A bench drill refers to a small drilling machine that can be placed on a workbench with a vertically arranged spindle. The drilling diameter of a bench drill is generally less than 13 mm and generally does not exceed 25 mm. The spindle speed change is generally achieved by changing the position of the V-belt on the tower pulley, and the spindle feed is manually operated. During the operation of the bench drill, in order to keep the workpiece stable during the processing, a corresponding clamping tool is often added to the bench drill for clamping and fixing.

[0003] At present, the shape of the clamping tooling for clamping and fixing the workpiece on the bench drill is generally kept fixed, which makes it inconvenient to deform according to the shape of the workpiece to match the clamping of the workpiece, resulting in insufficient and comprehensive clamping of the workpiece and insufficient stability. In order to ensure sufficient clamping and fixing, the staff often needs to replace the new fixture for use, but this operation is likely to consume more time, thereby delaying the processing time of the workpiece and greatly reducing the processing efficiency. Therefore, it is urgent to improve the technology of the clamping tooling structure to improve this equipment.

[0004] Therefore, the utility model provides a clamping tool for bench drilling. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a clamping tool for bench drill processing, which can realize that a pair of clamping blocks and multiple pairs of movable straight cylinders can be driven by the clamping mechanism to move towards each other, so as to clamp and fix the workpiece on the base, and at the same time cooperate with the telescopic deformation mechanism to drive the multiple pairs of movable straight cylinders to perform corresponding telescopic deformation according to the shape of the workpiece, so that the shapes of the clamping blocks and multiple movable straight cylinders after deformation can match the outer ends of the workpiece, so as to fully and comprehensively clamp and fix it. At the same time, there is no need to replace the clamping tools back and forth, which reduces time waste, avoids delays in the processing of the workpiece, and ensures its processing efficiency.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A clamping tool for bench drill processing includes a base, a bench drill body is installed on the upper end of the base, connecting plates are fixedly connected to the left and right ends of the base, and the front ends of a pair of connecting plates are fixedly connected to fixed plates, the upper sides of the pair of connecting plates are provided with mounting frames, and a clamping mechanism is installed between the fixed plates and the mounting frames.

[0010] Furthermore, the clamping mechanism includes a bidirectional threaded rod rotatably connected between a pair of fixed plates, the outer end of the bidirectional threaded rod is provided with a pair of external threads, and the thread directions of the pair of external threads are opposite, the front end of the fixed plate located on the right side is rotatably connected with a toggle dial, and the toggle dial is fixedly connected to the bidirectional threaded rod, the outer end of the bidirectional threaded rod is threadedly connected with a pair of threaded movable blocks, and the rear ends of the pair of threaded movable blocks are fixedly connected with connecting blocks, and the rear ends of the connecting blocks are fixedly connected with clamping blocks, the pair of clamping blocks are respectively fixedly connected to a pair of mounting frames, and a telescopic deformation mechanism is installed between the clamping blocks and the mounting frames.

[0011] Furthermore, the surface of the dial is provided with anti-slip grooves.

[0012] Furthermore, a pair of the telescopic deformation mechanisms each include a plurality of movable straight cylinders, a plurality of conducting holes are drilled between the clamping block and the mounting frame, and the ends of the plurality of movable straight cylinders close to the clamping block all pass through the conducting holes and extend into the mounting frame, the inner wall of the mounting frame is fixedly connected with a plurality of I-shaped rods, the outer ends of the plurality of movable straight cylinders are drilled with circular holes, and the movable straight cylinders are sleeved on the I-shaped rods through the circular holes, the outer ends of the I-shaped rods are slidably connected to the inner walls of the movable straight cylinders, the outer ends of the I-shaped rods are sleeved with a tension spring, and the two ends of the tension spring are respectively fixedly connected to the outer ends of the movable straight cylinder and the I-shaped rod.

[0013] Furthermore, the inner walls of the front and rear ends of a pair of the clamping blocks are inclined, and the outer ends of the plurality of movable straight cylinders are flush with the outer ends of the clamping blocks.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The utility model can drive a pair of clamping blocks and multiple pairs of movable straight cylinders to move towards each other through the clamping mechanism, so as to clamp and fix the workpiece on the base, and at the same time cooperate with the telescopic deformation mechanism to drive the multiple pairs of movable straight cylinders to perform corresponding telescopic deformation according to the shape of the workpiece, so that the shapes of the clamping blocks and multiple movable straight cylinders after deformation can match the outer ends of the workpiece, so as to fully and comprehensively clamp and fix it. At the same time, there is no need to replace the clamping tools back and forth, which reduces time waste, avoids delays in the processing of the workpiece, and ensures its processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the utility model;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the telescopic deformation mechanism in the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Base; 2. Drilling machine body; 3. Connecting plate; 4. Fixing plate; 5. Clamping mechanism; 501. Bidirectional threaded rod; 502. Turntable; 503. Threaded movable block; 504. Connecting block; 505. Clamping block; 6. Telescopic deformation mechanism; 601. Movable straight cylinder; 602. I-shaped rod; 603. Tension spring; 7. Mounting frame. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] See also Figure 1-3 A clamping tool for bench drill processing includes a base 1, a bench drill body 2 is installed on the upper end of the base 1, connecting plates 3 are fixedly connected to the left and right ends of the base 1, and the front ends of a pair of connecting plates 3 are fixedly connected to fixed plates 4, and the upper sides of the pair of connecting plates 3 are provided with mounting frames 7, and a clamping mechanism 5 is installed between the fixed plates 4 and the mounting frame 7.

[0025] During use of the present solution, the workpiece to be processed is first placed on the base 1, and then the dial 502 in the clamping mechanism 5 is rotated to drive the bidirectional threaded rod 501 to rotate, so that a pair of threaded movable blocks 503 on the bidirectional threaded rod 501 move toward each other, and drive a pair of clamping blocks 505 to move toward each other. Correspondingly, the multiple pairs of movable straight cylinders 601 in the telescopic deformation mechanism 6 also move toward each other with the clamping blocks 505 until they contact the workpiece. When the clamping contact end of the workpiece is a flat end, the clamping block 505 and the multiple movable straight cylinders 601 are flush and contact the clamping contact end of the workpiece to clamp and fix it. When the holding contact end is an arc-shaped end or an inclined end, when the multiple movable straight cylinders 601 contact the clamping contact end of the workpiece, they are squeezed by the convex part, and the movable straight cylinders 601 at the corresponding position move along the I-shaped rod 602 toward the inside of the installation frame 7, and squeeze the tension spring 603 to shrink until the clamping shape of the clamping block 505 and the multiple movable straight cylinders 601 matches the outer end of the workpiece to achieve clamping and fixing, thereby achieving deformation adapted to workpieces of different shapes, so as to fully and comprehensively clamp and fix them. At the same time, there is no need to replace the clamping tools back and forth, which reduces time waste, avoids delays in the processing of the workpiece, and ensures its processing efficiency.

[0026] See also Figure 1-2 The clamping mechanism 5 includes a bidirectional threaded rod 501 rotatably connected between a pair of fixed plates 4, a pair of external threads are provided at the outer ends of the bidirectional threaded rod 501, and the thread directions of the pair of external threads are opposite, a toggle dial 502 is rotatably connected to the front end of the fixed plate 4 located on the right side, and the toggle dial 502 is fixedly connected to the bidirectional threaded rod 501, a pair of threaded movable blocks 503 are threadedly connected to the outer ends of the bidirectional threaded rod 501, and the rear ends of the pair of threaded movable blocks 503 are fixedly connected to connecting blocks 504, and the rear ends of the connecting blocks 504 are fixedly connected to clamping blocks 505, a pair of clamping blocks 505 are respectively fixedly connected to a pair of mounting frames 7, and a telescopic deformation mechanism 6 is installed between the clamping blocks 505 and the mounting frames 7.

[0027] During use of this solution, the dial 502 is rotated to drive the bidirectional threaded rod 501 to rotate, and a pair of threaded movable blocks 503 on the bidirectional threaded rod 501 move toward each other under the action of opposite external threads, driving a pair of clamping blocks 505 and multiple pairs of movable straight cylinders 601 to move toward each other, thereby clamping and fixing the workpiece on the base 1 to keep it stable.

[0028] See also Figure 1 The surface of the dial 502 is provided with anti-slip grooves.

[0029] During use of the present invention, the anti-skid pattern is provided to prevent the operator from slipping when operating the dial 502, thereby improving operational stability.

[0030] See also Figure 1-3 A pair of telescopic deformation mechanisms 6 each include a plurality of movable straight cylinders 601, a plurality of conducting holes are bored between the clamping block 505 and the mounting frame 7, and the ends of the plurality of movable straight cylinders 601 close to the clamping block 505 all pass through the conducting holes and extend into the mounting frame 7, a plurality of I-shaped rods 602 are fixedly connected to the inner wall of the mounting frame 7, a plurality of movable straight cylinders 601 are each bored with circular holes at the outer ends thereof, and the movable straight cylinders 601 are sleeved on the I-shaped rods 602 through the circular holes, the outer ends of the I-shaped rods 602 are slidably connected to the inner wall of the movable straight cylinder 601, a tension spring 603 is sleeved on the outer ends of the I-shaped rods 602, and the two ends of the tension spring 603 are respectively fixedly connected to the outer ends of the movable straight cylinder 601 and the I-shaped rods 602.

[0031] During use of the present scheme, when the clamping contact end of the workpiece is a flat end, the multiple movable straight cylinders 601 do not need to be deformed and remain flush with the clamp block 505. During the clamping and fixing process, the multiple movable straight cylinders 601 and the clamp block 505 are in full contact with the workpiece to clamp and fix it. When the clamping contact end of the workpiece is an arcuate end or an inclined end, when the multiple movable straight cylinders 601 are in contact with the clamping contact end of the workpiece, they are squeezed by the convex parts thereof, and the movable straight cylinders 601 at the corresponding positions move along the I-shaped rod 602 toward the inside of the mounting frame 7, and squeeze the tension spring 603 to contract, until the deformed clamping shape of the clamp block 505 and the multiple movable straight cylinders 601 matches the outer end of the workpiece, thereby achieving clamping and fixing. After the clamping and fixing is completed, the multiple movable straight cylinders 601 can be reset by the elastic action of the tension spring 603 to return to a state flush with the clamp block 505.

[0032] See also Figure 1-3 The inner walls of the front and rear ends of a pair of clamping blocks 505 are inclined, and the outer ends of the plurality of movable straight cylinders 601 are flush with the outer ends of the clamping blocks 505 .

[0033] During use of the present solution, the multiple movable straight cylinders 601 are flush with the clamping block 505. When the clamping contact end facing the workpiece is flat, the multiple movable straight cylinders 601 and the clamping block 505 can be driven to fully contact with it, thereby fully and comprehensively clamping and fixing it. When the inner walls of the front and rear ends of the clamping block 505 are set as inclined surfaces, the multiple movable straight cylinders 601 can shrink and deform. When the clamping contact end facing the workpiece is an arc-shaped end or an inclined end, the inclined surface can be used to effectively clamp and fix it, thereby ensuring the clamping and fixing effect.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping tool for bench drilling, comprising a base (1), characterized in that: A bench drill body (2) is installed at the upper end of the base (1), connecting plates (3) are fixedly connected to the left and right ends of the base (1), and the front ends of a pair of connecting plates (3) are fixedly connected to fixed plates (4), and the upper sides of the pair of connecting plates (3) are provided with mounting frames (7), and a clamping mechanism (5) is installed between the fixed plates (4) and the mounting frames (7).

2. The clamping tool for bench drilling according to claim 1, characterized in that: The clamping mechanism (5) comprises a bidirectional threaded rod (501) rotatably connected between a pair of fixed plates (4); the outer end of the bidirectional threaded rod (501) is provided with a pair of external threads, and the thread directions of the pair of external threads are opposite; the front end of the fixed plate (4) located on the right side is rotatably connected with a toggle dial (502), and the toggle dial (502) is fixedly connected to the bidirectional threaded rod (501); the outer end of the bidirectional threaded rod (501) is threadedly connected with a pair of threaded movable blocks (503), and the rear ends of the pair of threaded movable blocks (503) are fixedly connected with connecting blocks (504), and the rear ends of the connecting blocks (504) are fixedly connected with clamping blocks (505); the pair of clamping blocks (505) are respectively fixedly connected with a pair of mounting frames (7), and a telescopic deformation mechanism (6) is installed between the clamping blocks (505) and the mounting frames (7).

3. The clamping tool for bench drilling according to claim 2, characterized in that: The surface of the dial (502) is provided with anti-slip grooves.

4. The clamping tool for bench drilling according to claim 2, characterized in that: A pair of telescopic deformation mechanisms (6) each comprises a plurality of movable straight cylinders (601), a plurality of conducting holes are bored between the clamping block (505) and the mounting frame (7), and the ends of the plurality of movable straight cylinders (601) close to the clamping block (505) all pass through the conducting holes and extend into the mounting frame (7), the inner wall of the mounting frame (7) is fixedly connected with a plurality of I-shaped rods (602), the outer ends of the plurality of movable straight cylinders (601) are bored with round holes, and the movable straight cylinders (601) are sleeved on the I-shaped rods (602) through the round holes, the outer ends of the I-shaped rods (602) are slidably connected to the inner wall of the movable straight cylinder (601), the outer ends of the I-shaped rods (602) are sleeved with a tension spring (603), and the two ends of the tension spring (603) are respectively fixedly connected to the outer ends of the movable straight cylinder (601) and the I-shaped rods (602).

5. The clamping tool for bench drilling according to claim 4, characterized in that: The inner walls of the front and rear ends of a pair of clamping blocks (505) are both inclined, and the outer ends of the plurality of movable straight cylinders (601) are all flush with the outer ends of the clamping blocks (505).

Images