Clamping device for machining workpiece of drilling machining center

Abstract

The utility model relates to the technical field of clamps, in particular to a clamping device for a machining workpiece of a drilling machining center. The technical problems that when drilling work is carried out on a machined workpiece in a drilling machining center, the machined workpiece needs to be clamped, positioned and fixed, at present, pressing and positioning are generally carried out through bolts and pressing blocks, manual adjustment needs to be carried out once every time drilling work of one workpiece is completed, and convenience is not enough are solved. According to the technical scheme, the clamping device for machining the workpiece in the drilling machining center comprises a base, a clamping assembly, a mounting assembly, a pressing assembly, an adjusting assembly and a drill bit; compared with the prior art that when a machined workpiece is drilled in a drilling machining center, the machined workpiece is generally pressed and positioned through a bolt and a pressing block, manual adjustment is needed once every time drilling work of the workpiece is completed, and inconvenience is caused; according to the device, the pressing device moving along with the drill bit and the clamping device for automatically clamping and positioning are arranged, so that a machined workpiece is clamped more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a clamping device for machining workpieces on a drilling machining center. Background Technique

[0002] A drilling machining center is a numerically controlled machine tool specifically used for drilling machining. It integrates functions of automatic feeding, machining, and discharging, is suitable for assembly line operations, and has a very high degree of automation. The drilling machining center usually adopts a point position control system, which can accurately position and drill holes to reduce errors. Before the drilling work is carried out on the drilling machining center, the workpiece to be machined needs to be clamped, positioned, and fixed to ensure the smooth progress of the drilling work. Currently, generally, multiple groups of threaded holes are opened on the placement plate, and the workpiece is pressed and positioned through bolts and pressing blocks according to the placement position of the workpiece to be machined. Each time a workpiece's drilling work is completed, manual adjustment is required, which is not convenient enough. Content of the Utility Model

[0003] In order to overcome the problem that when the workpiece to be machined is drilled on the drilling machining center, the workpiece to be machined needs to be clamped, positioned, and fixed. Currently, generally, multiple groups of threaded holes are opened on the placement plate, and the workpiece is pressed and positioned through bolts and pressing blocks according to the placement position of the workpiece to be machined. Each time a workpiece's drilling work is completed, manual adjustment is required, which is not convenient enough.

[0004] The technical solution of the utility model is: a clamping device for machining workpieces on a drilling machining center, including a base, a clamping assembly, an installation assembly, a pressing assembly, an adjusting assembly, and a drill bit. The clamping assembly is arranged above the base, the installation assembly is arranged above the base, the pressing assembly is arranged below the installation assembly, the adjusting assembly is arranged above the installation assembly, the drill bit is arranged below the installation assembly, and the drill bit is located inside the pressing assembly.

[0005] Preferably, the workpiece is clamped by setting the clamping assembly, the pressing assembly and the drill bit are supported and installed by setting the installation assembly, the workpiece is pressed and fixed by setting the pressing assembly, and the drill bit is made to be in close contact with the workpiece. The position of the drill bit is adjusted by setting the adjusting assembly, so as to drill holes at different positions of the workpiece, and the workpiece is drilled by setting the drill bit.

[0006] As a preference, the clamping assembly includes a chute, an internally threaded sliding frame, and a rubber strip. Two groups of chutes are opened on the top surface of the base. The internally threaded sliding frame is arranged above the base and is slidably connected to the base through the chute. There are two groups of internally threaded sliding frames, and the rubber strip is fixedly installed on one side of the internally threaded sliding frame. The internally threaded sliding frame and the base are slidably connected by setting the chute, the rubber strip is supported and installed by the internally threaded sliding frame and the workpiece is clamped, and the rubber strip is set to prevent the workpiece from coming into rigid contact with the internally threaded sliding frame and causing workpiece wear.

[0007] Preferably, the clamping assembly further includes a first motor, a first lead screw, and a limit plate. The first motor is fixedly installed on one side of the base. One end of the first lead screw is fixedly connected to the output end of the first motor. The first lead screw is rotatably connected to the base. The first lead screw penetrates through the internally threaded carriage, and the first lead screw is threadedly connected to the internally threaded carriage. The first lead screw is composed of two threaded segments with equal lengths at both ends and opposite threads. The first lead screw is located inside the chute, and the limit plate is fixedly installed on the outside of the first lead screw. By setting the first motor to drive the first lead screw to rotate, the two internally threaded carriages are driven to move towards or away from each other along the chute. By setting the limit plate, the internally threaded carriage is limited.

[0008] Preferably, the mounting assembly includes a U-shaped mounting frame, a slide rail, a sliding bracket, and an internally threaded mounting frame. The U-shaped mounting frame is fixedly installed outside the base. The slide rail is fixedly installed above the U-shaped mounting frame. The sliding bracket is arranged above the slide rail, and the sliding bracket is slidably connected to the slide rail. The internally threaded mounting frame is arranged outside the sliding bracket, and the internally threaded mounting frame is slidably connected to the sliding bracket. By setting the U-shaped mounting frame to support and install the slide rail and the sliding bracket, by setting the slide rail, the sliding bracket can slide along the slide rail, and by setting the internally threaded mounting frame to install the pressing assembly.

[0009] Preferably, the pressing assembly includes a first telescopic rod, a rubber pressing block, a flexible bellows, a second telescopic rod, and a mounting plate. The second telescopic rod is fixedly installed below the internally threaded mounting frame. The mounting plate is arranged below the second telescopic rod, and the mounting plate is fixedly connected to the output end of the second telescopic rod. The first telescopic rod is fixedly installed below the mounting plate. There are multiple groups of the first telescopic rods. The rubber pressing block is arranged below the first telescopic rod, and the rubber pressing block is fixedly connected to the output end of the first telescopic rod. The flexible bellows is arranged below the mounting plate. One end of the flexible bellows is fixedly connected to the mounting plate, and the other end of the flexible bellows is fixedly connected to the rubber pressing block. The drill bit is located inside the flexible bellows. By setting the second telescopic rod to drive the mounting plate to rise and fall, the drill bit can contact the workpiece. By setting the mounting plate to support and install the flexible bellows and the first telescopic rod, by setting the first telescopic rod, the rubber pressing block can be pushed to press the workpiece and drive the flexible bellows to unfold. By setting the rubber pressing block to prevent the first telescopic rod from rigidly contacting the workpiece and causing workpiece wear, and by setting the flexible bellows to block the waste chips generated during the drilling process and prevent the waste chips from scattering.

[0010] Preferably, the adjusting assembly includes a third telescopic rod and a limiting strip. The third telescopic rod is fixedly installed above the U-shaped mounting bracket. The output end of the third telescopic rod is fixedly connected to the sliding bracket. The third telescopic rod is located at one end of the slide rail. The limiting strip is fixedly installed on one side of the U-shaped mounting bracket. The limiting strip is located at the other end of the slide rail. By setting the third telescopic rod to drive the sliding bracket to slide on the slide rail, and by setting the limiting strip to limit the sliding bracket.

[0011] Preferably, the adjusting assembly further includes a second motor and a second lead screw. The second motor is fixedly installed above the sliding bracket. One end of the second lead screw is fixedly connected to the output end of the second motor. The second lead screw is rotatably connected to the sliding bracket. The second lead screw penetrates through the internally threaded mounting bracket. The second lead screw is threadedly connected to the internally threaded mounting bracket. By setting the second motor to drive the second lead screw to rotate, thereby driving the internally threaded mounting bracket to slide on the sliding bracket.

[0012] The beneficial effects of the present utility model:

[0013] 1. Compared with the current situation where when processing workpieces on a drilling machining center, generally bolts and pressing blocks are used to clamp and position the processing workpieces, and manual adjustment is required each time after completing the drilling work of one workpiece, which is not convenient enough; this device is more convenient by setting a pressing device that moves with the drill bit and a clamping device for automatic clamping and positioning to clamp the processing workpiece.

[0014] 2. By driving the first lead screw to rotate by the first motor, driving the internally threaded carriage to move towards each other, so that the rubber strip contacts the processing workpiece and clamps the processing workpiece between the two rubber strips, thereby clamping and positioning the processing workpiece. Due to the characteristic that the rubber strip itself has a certain deformation, it prevents the rigid contact between the internally threaded carriage and the processing workpiece, causing wear to the processing workpiece.

[0015] 3. By pushing the sliding bracket with the third telescopic rod, the drill bit is located above the processing workpiece. By driving the second lead screw to rotate by the second motor, the internally threaded mounting bracket is driven to move, so that the drill bit moves to the position where the processing workpiece needs to be drilled. By pushing the mounting plate with the second telescopic rod, the drill bit contacts the processing workpiece. By pushing the rubber pressing block with the first telescopic rod to press and fix the processing workpiece, and unfolding the flexible bellows, the flexible bellows shields the drill bit to prevent the waste chips generated by drilling from scattering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is the first cross-sectional three-dimensional structure schematic diagram of the clamping device for processing workpieces on the drilling machining center of the present utility model;

[0017] Figure 2 Shown is the first three-dimensional structure schematic diagram of the clamping device for processing workpieces on the drilling machining center of the present utility model;

[0018] Figure 3 Shown is a second cross-sectional three-dimensional structural schematic diagram of the clamping device for machining workpieces by the drilling machining center of the present utility model;

[0019] Figure 4 Shown is the clamping device for machining workpieces by the drilling machining center of the present utility model Figure 3 A magnified three-dimensional structural schematic diagram at the circled part;

[0020] Figure 5 Shown is a second three-dimensional structural schematic diagram of the clamping device for machining workpieces by the drilling machining center of the present utility model;

[0021] Explanation of reference numerals in the drawings: 1. Base; 2. Clamping assembly; 3. Mounting assembly; 4. Pressing assembly; 5. Adjusting assembly; 6. Drill bit; 201. Slide groove; 202. Internal thread slide carriage; 203. Rubber strip; 204. First motor; 205. First lead screw; 206. Limit plate; 301. U-shaped mounting bracket; 302. Slide rail; 303. Sliding bracket; 304. Internal thread mounting bracket; 401. First telescopic rod; 402. Rubber pressing block; 403. Flexible bellows; 404. Second telescopic rod; 405. Mounting plate; 501. Third telescopic rod; 502. Limit strip; 503. Second motor; 504. Second lead screw. Detailed implementation manners

[0022] The present utility model will be further described below with reference to the drawings and embodiments.

[0023] Please refer to Figure 1 , the present utility model provides an embodiment: A clamping device for machining workpieces by a drilling machining center includes a base 1, a clamping assembly 2, a mounting assembly 3, a pressing assembly 4, an adjusting assembly 5 and a drill bit 6. The clamping assembly 2 is arranged above the base 1, the mounting assembly 3 is arranged above the base 1, the pressing assembly 4 is arranged below the mounting assembly 3, the adjusting assembly 5 is arranged above the mounting assembly 3, the drill bit 6 is arranged below the mounting assembly 3, and the drill bit 6 is located inside the pressing assembly 4.

[0024] Please refer to Figures 2-4, in this embodiment, the clamping assembly 2 includes a chute 201, an internally threaded carriage 202, and a rubber strip 203. Two groups of chutes 201 are provided on the top surface of the base 1. The internally threaded carriage 202 is disposed above the base 1. The internally threaded carriage 202 is slidably connected to the base 1 through the chute 201. There are two groups of internally threaded carriages 202. The rubber strip 203 is fixedly installed on one side of the internally threaded carriage 202. The chute 201 is provided to slidably connect the internally threaded carriage 202 and the base 1. The internally threaded carriage 202 is provided to support and install the rubber strip 203 and clamp the workpiece. The rubber strip 203 is provided to prevent the workpiece from coming into rigid contact with the internally threaded carriage 202 and causing wear of the workpiece. The clamping assembly 2 further includes a first motor 204, a first lead screw 205, and a limit plate 206. The first motor 204 is fixedly installed on one side of the base 1. One end of the first lead screw 205 is fixedly connected to the output end of the first motor 204. The first lead screw 205 is rotatably connected to the base 1. The first lead screw 205 passes through the internally threaded carriage 202. The first lead screw 205 is threadedly connected to the internally threaded carriage 202. The first lead screw 205 is composed of two threaded segments with equal lengths at both ends and opposite threads. The first lead screw 205 is located inside the chute 201. The limit plate 206 is fixedly installed inside the chute 201. The limit plate 206 is rotatably connected to the first lead screw 205. The first motor 204 is provided to drive the first lead screw 205 to rotate, thereby driving the two groups of internally threaded carriages 202 to move towards or away from each other along the chute 201. The limit plate 206 is provided to limit the internally threaded carriage 202. The mounting assembly 3 includes a U-shaped mounting frame 301, a slide rail 302, a sliding bracket 303, and an internally threaded mounting frame 304. The U-shaped mounting frame 301 is fixedly installed outside the base 1. The slide rail 302 is fixedly installed above the U-shaped mounting frame 301. The sliding bracket 303 is disposed above the slide rail 302. The sliding bracket 303 is slidably connected to the slide rail 302. The internally threaded mounting frame 304 is disposed outside the sliding bracket 303. The internally threaded mounting frame 304 is slidably connected to the sliding bracket 303. The U-shaped mounting frame 301 is provided to support and install the slide rail 302 and the sliding bracket 303. The slide rail 302 is provided to enable the sliding bracket 303 to slide along the slide rail 302. The internally threaded mounting frame 304 is provided to mount the pressing assembly 4.The pressing component 4 includes a first telescopic rod 401, a rubber pressing block 402, a flexible bellows 403, a second telescopic rod 404 and a mounting plate 405. The second telescopic rod 404 is fixedly installed below the internally threaded mounting frame 304. The mounting plate 405 is arranged below the second telescopic rod 404 and is fixedly connected to the output end of the second telescopic rod 404. The first telescopic rod 401 is fixedly installed below the mounting plate 405, and multiple groups of the first telescopic rods 401 are provided. The rubber pressing block 402 is arranged below the first telescopic rod 401 and is fixedly connected to the output end of the first telescopic rod 401. The flexible bellows 403 is arranged below the mounting plate 405. One end of the flexible bellows 403 is fixedly connected to the mounting plate 405, and the other end of the flexible bellows 403 is fixedly connected to the rubber pressing block 402. The drill bit 6 is located inside the flexible bellows 403. By setting the second telescopic rod 404 to drive the mounting plate 405 to move up and down, the drill bit 6 can contact the workpiece. By setting the mounting plate 405 to support and install the flexible bellows 403 and the first telescopic rod 401, by setting the first telescopic rod 401, it can push the rubber pressing block 402 to press the workpiece and drive the flexible bellows 403 to unfold. By setting the rubber pressing block 402, it can prevent the first telescopic rod 401 from making rigid contact with the workpiece and causing wear to the workpiece. By setting the flexible bellows 403, it can block the waste chips generated during the drilling process and prevent the waste chips from scattering.;

[0025] Please refer to Figure 5 , in this embodiment, the adjusting component 5 includes a third telescopic rod 501 and a limiting strip 502. The third telescopic rod 501 is fixedly installed above the U-shaped mounting frame 301, and the output end of the third telescopic rod 501 is fixedly connected to the sliding bracket 303. The third telescopic rod 501 is located at one end of the slide rail 302. The limiting strip 502 is fixedly installed on one side of the U-shaped mounting frame 301 and is located at the other end of the slide rail 302. By setting the third telescopic rod 501 to drive the sliding bracket 303 to slide on the slide rail 302, and by setting the limiting strip 502 to limit the sliding bracket 303. The adjusting component 5 further includes a second motor 503 and a second lead screw 504. The second motor 503 is fixedly installed above the sliding bracket 303. One end of the second lead screw 504 is fixedly connected to the output end of the second motor 503. The second lead screw 504 is rotatably connected to the sliding bracket 303. The second lead screw 504 passes through the internally threaded mounting frame 304 and is threadedly connected to the internally threaded mounting frame 304. By setting the second motor 503 to drive the second lead screw 504 to rotate, the internally threaded mounting frame 304 can be driven to slide on the sliding bracket 303.

[0026] When working, place the workpiece to be processed on the base 1, and use the first motor 204 to drive the first lead screw 205 to rotate, thereby driving the internal-threaded carriage 202 to move towards each other, and use the rubber strip 203 to contact the workpiece to be processed, thereby clamping and positioning the workpiece to be processed;

[0027] Use the third telescopic rod 501 to push the sliding bracket 303, so that the drill bit 6 is located above the workpiece to be processed. Use the second motor 503 to drive the second lead screw 504 to rotate, thereby driving the internal-threaded mounting bracket 304 to move, so that the drill bit 6 moves to the position where the workpiece to be processed needs to be drilled;

[0028] Use the second telescopic rod 404 to push the mounting plate 405, so that the drill bit 6 contacts the workpiece to be processed. Use the first telescopic rod 401 to push the rubber pressing block 402 to press and fix the workpiece to be processed, and unfold the flexible bellows 403;

[0029] Use the drill bit 6 to drill the workpiece, and use the flexible bellows 403 to prevent the waste chips generated during drilling from scattering and polluting the workbench surface;

[0030] When the first telescopic rod 401 is retracted after drilling is completed, the flexible bellows 403 will also fold up, saving more space.

[0031] Through the above steps, the workpiece is clamped by setting the clamping assembly 2, the pressing assembly 4 and the drill bit 6 are supported and installed by setting the mounting assembly 3, the workpiece is pressed and fixed by setting the pressing assembly 4, and the drill bit 6 is made to be close to the workpiece. By setting the adjusting assembly 5 to adjust the position of the drill bit 6, holes can be drilled at different positions of the workpiece, and the workpiece is drilled by setting the drill bit 6.

[0032] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A clamping device for a workpiece in a drilling machining center, comprising a base (1); characterized in that: The invention also comprises a clamping assembly (2), a mounting assembly (3), a pressing assembly (4), an adjusting assembly (5) and a drill bit (6), wherein the clamping assembly (2) is arranged above the base (1), the mounting assembly (3) is arranged above the base (1), the pressing assembly (4) is arranged below the mounting assembly (3), the adjusting assembly (5) is arranged above the mounting assembly (3), the drill bit (6) is arranged below the mounting assembly (3), and the drill bit (6) is located at the top of the pressing assembly (4). Internally, the clamping assembly (2) includes a slide groove (201), an internally threaded slide (202) and a rubber strip (203). Two groups of slide grooves (201) are provided on the top surface of the base (1). The internally threaded slide (202) is arranged above the base (1). The internally threaded slide (202) is slidably connected to the base (1) through the slide groove (201). Two groups of internally threaded slides (202) are provided. The rubber strip (203) is fixedly installed on one side of the internally threaded slide (202).

2. The clamping device for machining workpieces in a drilling machining center according to claim 1, characterized in that: The clamping assembly (2) also includes a first motor (204), a first lead screw (205) and a limit plate (206); the first motor (204) is fixedly mounted on one side of the base (1); one end of the first lead screw (205) is fixedly connected to the output end of the first motor (204); the first lead screw (205) is rotatably connected to the base (1); the first lead screw (205) passes through the internal threaded slide (202); the first lead screw (205) is threadedly connected to the internal threaded slide (202); the first lead screw (205) is composed of threaded segments with equal lengths and opposite threads at both ends; the first lead screw (205) is located inside the slide groove (201); the limit plate (206) is fixedly mounted inside the slide groove (201); and the limit plate (206) is rotatably connected to the first lead screw (205).

3. The clamping device for machining workpieces in a drilling machining center according to claim 1, characterized in that: The mounting assembly (3) comprises a U-shaped mounting frame (301), a slide rail (302), a sliding bracket (303) and an internally threaded mounting frame (304); the U-shaped mounting frame (301) is fixedly mounted on the outside of the base (1); the slide rail (302) is fixedly mounted on the top of the U-shaped mounting frame (301); the sliding bracket (303) is arranged on the top of the slide rail (302); the sliding bracket (303) is slidably connected to the slide rail (302); the internally threaded mounting frame (304) is arranged on the outside of the sliding bracket (303); and the internally threaded mounting frame (304) is slidably connected to the sliding bracket (303).

4. The clamping device for machining workpieces in a drilling machining center according to claim 3, characterized in that: The clamping assembly (4) comprises a first telescopic rod (401), a rubber pressure block (402), a flexible accordion cover (403), a second telescopic rod (404) and a mounting plate (405). The second telescopic rod (404) is fixedly mounted below the internal thread mounting frame (304). The mounting plate (405) is arranged below the second telescopic rod (404). The mounting plate (405) is fixedly connected to the output end of the second telescopic rod (404). The first telescopic rod (401) is fixedly mounted below the mounting plate (405). The first telescopic rod (401) is provided with multiple groups, the rubber pressing block (402) is arranged below the first telescopic rod (401), the rubber pressing block (402) is fixedly connected to the output end of the first telescopic rod (401), the flexible accordion cover (403) is arranged below the mounting plate (405), one end of the flexible accordion cover (403) is fixedly connected to the mounting plate (405), the other end of the flexible accordion cover (403) is fixedly connected to the rubber pressing block (402), and the drill bit (6) is located inside the flexible accordion cover (403).

5. The clamping device for machining workpieces in a drilling machining center according to claim 3, characterized in that: The adjustment component (5) comprises a third telescopic rod (501) and a limit bar (502); the third telescopic rod (501) is fixedly mounted above the U-shaped mounting frame (301); the output end of the third telescopic rod (501) is fixedly connected to the sliding bracket (303); the third telescopic rod (501) is located at one end of the slide rail (302); the limit bar (502) is fixedly mounted on one side of the U-shaped mounting frame (301); and the limit bar (502) is located at the other end of the slide rail (302).

6. The clamping device for machining workpieces in a drilling machining center according to claim 5, characterized in that: The adjustment assembly (5) also includes a second motor (503) and a second lead screw (504); the second motor (503) is fixedly mounted above the sliding bracket (303); one end of the second lead screw (504) is fixedly connected to the output end of the second motor (503); the second lead screw (504) is rotatably connected to the sliding bracket (303); the second lead screw (504) passes through the internal thread mounting frame (304); and the second lead screw (504) is threadedly connected to the internal thread mounting frame (304).

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