A hand-held straight flute tap short-joint repair device

Abstract

This utility model discloses a hand-held device for repairing shorted joints of straight flute taps, relating to the field of straight flute tap technology. It includes a worktable, a cutting device, a fixed block, and a movable rod. The cutting device is located at the bottom of the worktable, and the movable rod is located inside the fixed block. A placement groove is formed on one side of the fixed block, and fixed plates are provided on both sides inside the placement groove. A slider is fixedly connected to one end of each fixed plate, and a first inclined surface is provided at the end of the slider away from the fixed plate. The movable rod includes a connecting frame, and second inclined surfaces are provided at the front ends of both ends of the connecting frame. This utility model involves placing the tap to be repaired inside the placement groove, then pushing the movable rod to cause friction between the connecting frame and the slider. The slider slides inside the groove under the frictional resistance of the connecting frame, thereby fixing the tap to be repaired by the fixed plate. Then, the cutting device is activated to cut the broken end of the tap, facilitating operation by the worker.

Description

Technical Field

[0001] This utility model relates to the field of straight flute tap technology, specifically to a hand-held straight flute tap short-circuit repair device. Background Technology

[0002] A tap is a cutting tool used for machining internal threads. It has grooves along the axial direction and is also called a screw tap. Taps are classified into straight flute taps, spiral flute taps, and pointed taps according to their shape. Straight flute taps are easy to machine, have slightly lower precision, and have a higher output. They are generally used for thread machining on ordinary lathes, drilling machines, and tapping machines, and have a slower cutting speed. Spiral flute taps are mostly used for drilling blind holes in CNC machining centers. They have a faster machining speed, higher precision, better chip removal, and better centering. Pointed taps have a chip flute at the front and are used for machining through holes. Existing hand-held straight flute taps may break during drilling due to excessive temperature or excessive strength. After the tap breaks, the broken end is irregular, so workers usually discard it and replace it with a new one to continue machining. This is wasteful and causes unnecessary losses. Utility Model Content

[0003] This invention provides a hand-held straight groove tap short-connection repair device to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A hand-held straight flute tap short-joint repair device includes a worktable, a cutting device, a fixed block, and a movable rod. The cutting device is located at the bottom of the worktable, and the movable rod is located inside the fixed block. A placement groove is provided on one side of the fixed block, and fixed plates are provided on both sides inside the placement groove. A slider is fixedly connected to one end of the fixed plate, and a first inclined surface is provided at the end of the slider away from the fixed plate. The movable rod includes a connecting frame, and a second inclined surface is provided at the front ends of both ends of the connecting frame.

[0005] A further improvement of this utility model is that: sliding grooves are provided on both sides of the inner wall of the placement groove, and the slider is slidably connected to the inside of the sliding groove, with the first inclined surface and the second inclined surface in contact.

[0006] Using the above technical solution, the first and second inclined surfaces are used to rub against each other, so that the slider slides inside the groove under the frictional resistance of the connecting frame, thereby driving the fixing plate to fix the tap that needs to be repaired.

[0007] A further improvement of this utility model is that: the inner walls on both sides of the slide groove are provided with limiting grooves, the two ends of the slider are fixedly connected with limiting blocks, and the slider is slidably connected to the inside of the slide groove through the limiting blocks and limiting grooves.

[0008] Using the above technical solution, the limiting block and limiting groove in the solution can limit the slider, so that the slider can make linear sliding motion and will not slide out of the groove.

[0009] A further improvement of this utility model is that: the fixed block has a movable groove inside, the movable groove is connected to the sliding groove, a sliding groove is provided on one side of the inner wall of the movable groove, and the movable rod is slidably connected to the inside of the sliding groove.

[0010] A further improvement of this utility model is that: a second reset spring is fixedly connected to one end of the limiting block, and the end of the second reset spring away from the limiting block is fixedly connected to the inner wall of the limiting groove.

[0011] Using the above technical solution, the second reset spring in this solution can drive the limit block to drive the slider to drive the fixed plate to perform a reset movement, thereby loosening the fixation of the tap.

[0012] A further improvement of the present invention is that: a connecting block is fixedly connected to one end of the fixed block, a movable cavity is provided inside the connecting block, the movable cavity is connected to the sliding groove, a bottom block is fixedly connected to one side inner wall of the movable cavity, a slot is provided inside the bottom block, the slot is adapted to the movable rod, and plastic buckles are fixedly connected to one side outer wall of the bottom block in a circular array.

[0013] A further improvement of this utility model is that: one end of the connecting block is provided with a threaded groove, the threaded groove is connected to the movable cavity, a fastening bolt is engaged with the threaded groove inside the threaded groove, a through groove is provided inside the fastening bolt, the through groove is adapted to the movable rod, a first sliding surface is provided at the end of the plastic buckle away from the bottom block, and a second sliding surface is provided on the inner side of the fastening bolt.

[0014] Using the above technical solution, the fastening bolt is rotatable, allowing it to move into the thread groove under the action of the thread engaging with the thread groove. This causes the first and second sliding surfaces to rub against each other, which in turn causes the plastic clips to move closer together under the frictional thrust of the fastening bolt, thereby clamping and fixing the movable rod. This ensures the movable rod is stably fixed and prevents the fixing plate from loosening.

[0015] A further improvement of the present invention is that the cutting device includes a placement box, a drive motor is fixedly connected inside the placement box, the output shaft of the drive motor is fixedly connected to a cutting disc via a coupling, grinding discs are provided on both outer walls of the cutting disc, and a cutting groove is provided on the upper surface of the worktable.

[0016] Using the above technical solution, the drive motor can drive the cutting disc, which is fixedly connected by a coupling, to rotate, and the grinding disc can grind the end of the tap after cutting.

[0017] A further improvement of this utility model is that: a guide groove is provided at the bottom of the workbench, the upper end of the placement box is slidably connected to the inside of the guide groove through a guide block, a support plate is fixedly connected to the bottom of the workbench, a pull rod is fixedly connected to one end of the placement box, a first return spring is fixedly connected to one side wall of the support plate, and the end of the first return spring away from the support plate is fixedly connected to the outer wall of the placement box.

[0018] Using the above technical solution, the pull rod can pull the placement box to slide under the limiting action of the guide groove, thereby driving the cutting disc to slide and cut the tap end that needs to be repaired.

[0019] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows: This utility model provides a hand-held straight flute tap short-joint repair device. By placing the tap to be repaired inside the placement groove, the movable rod is pushed to drive the connecting frame and the slider to rub against each other, so that the slider slides inside the groove under the frictional resistance of the connecting frame, thereby driving the fixing plate to fix the tap to be repaired. Then, the cutting device is activated to cut the broken end of the tap, which is convenient for workers to operate.

[0020] This utility model provides a hand-held straight flute tap short-connection repair device. By rotating the fastening bolt, the thread engages with the inside of the thread groove and moves into the thread groove. This causes the plastic clips to move closer together under the frictional thrust of the fastening bolt, thereby clamping and fixing the movable rod. This ensures that the movable rod is stably fixed and that the fixing plate will not loosen, thus guaranteeing the stability of the tap after it is fixed. Attached Figure Description

[0021] Figure 1 This is a front view of the hand-held straight flute tap short-joint repair device according to an embodiment of the present utility model; Figure 2 This is a structural diagram of the bottom of the workbench of the hand-held straight flute tap short-joint repair device according to an embodiment of the present invention; Figure 3 This is a structural diagram of the fixing block of the hand-held straight flute tap short-joint repair device according to an embodiment of the present utility model; Figure 4 This is a diagram showing the internal structure of the fixing block and connecting block of the hand-held straight flute tap short-joint repair device according to an embodiment of the present invention; Figure 5This is a structural diagram of the movable rod of the hand-held straight groove tap short-joint repair device according to an embodiment of the present utility model.

[0022] In the diagram: 1. Workbench; 101. Cutting groove; 102. Guide groove; 103. Support plate; 104. First return spring; 2. Cutting device; 201. Placement box; 202. Drive motor; 203. Cutting disc; 204. Grinding disc; 205. Pull rod; 3. Fixing block; 301. Placement groove; 302. Slide groove; 303. Limiting groove; 304. Fixing plate; 305. Slider; 306. First inclined surface; 307. Limiting block; 308. Second return spring; 309. Movable groove; 3010. Sliding groove; 4. Connecting block; 401. Movable cavity; 402. Bottom block; 403. Plastic buckle; 404. First sliding surface; 405. Threaded groove; 5. Movable rod; 501. Connecting frame; 502. Second inclined surface; 6. Fastening bolt; 601. Second sliding surface. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The present invention will be further described in detail below with reference to embodiments: Example 1

[0025] like Figure 1-5 As shown, this utility model provides a hand-held straight flute tap short-joint repair device, including a workbench 1, a cutting device 2, a fixed block 3, and a movable rod 5. The cutting device 2 is located at the bottom of the workbench 1, and the movable rod 5 is located inside the fixed block 3. A placement groove 301 is provided on one side of the fixed block 3, and fixed plates 304 are provided on both sides inside the placement groove 301. A slider 305 is fixedly connected to one end of the fixed plate 304, and a first inclined surface 306 is provided at the end of the slider 305 away from the fixed plate 304. The movable rod 5 includes a connecting frame 501, and a second inclined surface 502 is provided at the front ends of both ends of the connecting frame 501.

[0026] In this embodiment, the tap to be repaired is placed inside the placement groove 301, and then the movable rod 5 is pushed to drive the connecting frame 501 and the slider 305 to rub against each other. This causes the slider 305 to slide inside the groove 302 under the frictional resistance of the connecting frame 501, thereby driving the fixing plate 304 to fix the tap to be repaired. Then the cutting device 2 is started to cut the broken end of the tap, making it convenient for the staff to operate. Example 2

[0027] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, sliding grooves 302 are provided on both sides of the inner wall of the placement groove 301, and the slider 305 is slidably connected to the inside of the sliding groove 302. The first inclined surface 306 and the second inclined surface 502 are in contact. Limiting grooves 303 are provided on both sides of the inner wall of the sliding groove 302. Limiting blocks 307 are fixedly connected to both ends of the slider 305. The slider 305 is slidably connected to the inside of the sliding groove 302 through the limiting blocks 307 and the limiting grooves 303. The fixed block 3 has a movable groove 309 inside, which communicates with the sliding groove 302. A sliding groove 3010 is provided on one side of the inner wall of the movable groove 309. The movable rod 5 is slidably connected to the inside of the sliding groove 3010. A second return spring 308 is fixedly connected to one end of the limiting block 307. The end of the second return spring 308 away from the limiting block 307 is fixedly connected to the inner wall of the limiting groove 303.

[0028] In this embodiment, the first inclined surface 306 and the second inclined surface 502 are used for mutual friction, so that the slider 305 slides inside the groove 302 under the frictional resistance of the connecting frame 501, thereby driving the fixing plate 304 to fix the tap that needs to be repaired. The limiting block 307 and the limiting groove 303 can limit the slider 305, so that the slider 305 can make linear sliding motion and will not slide out of the groove 302. The second return spring 308 can drive the limiting block 307 to drive the slider 305 to drive the fixing plate 304 to make a return motion, thereby releasing the fixation of the tap. Example 3

[0029] like Figure 1-5As shown, based on Embodiments 1 and 2, this utility model provides a technical solution: Preferably, a connecting block 4 is fixedly connected to one end of the fixing block 3. A movable cavity 401 is formed inside the connecting block 4, communicating with a sliding groove 3010. A bottom block 402 is fixedly connected to the inner wall of one side of the movable cavity 401. A slot is formed inside the bottom block 402, which is compatible with the movable rod 5. Plastic buckles 403 are fixedly connected in a circumferential array to the outer wall of one side of the bottom block 402. A threaded groove 405 is formed at one end of the connecting block 4, communicating with the movable cavity 401. A fastening bolt 6 is threaded inside the threaded groove 405. A through groove is formed inside the fastening bolt 6, which is compatible with the movable rod 5. A first sliding surface 404 is provided at the end of the plastic buckle 403 away from the bottom block 402. The inner side of the fastening bolt 6 is provided with a second sliding surface 601. The cutting device 2 includes a placement box 201. A drive motor 202 is fixedly connected inside the placement box 201. The output shaft of the drive motor 202 is fixedly connected to a cutting disc 203 through a coupling. Grinding discs 204 are provided on both outer walls of the cutting disc 203. A cutting groove 101 is opened on the upper surface of the worktable 1. A guide groove 102 is opened on the bottom of the worktable 1. The upper end of the placement box 201 is slidably connected to the inside of the guide groove 102 through a guide block. A support plate 103 is fixedly connected to the bottom of the worktable 1. A pull rod 205 is fixedly connected to one end of the placement box 201. A first return spring 104 is fixedly connected to one side wall of the support plate 103. The end of the first return spring 104 away from the support plate 103 is fixedly connected to the outer wall of the placement box 201.

[0030] In this embodiment, the fastening bolt 6 is rotatable, causing it to move into the threaded groove 405 under the action of the thread engaging with the threaded groove 405. This causes the first sliding surface 404 and the second sliding surface 601 to rub against each other, which in turn causes the plastic clips 403 to move closer together under the frictional thrust of the fastening bolt 6, thereby clamping and fixing the movable rod 5. This ensures that the movable rod 5 is stably fixed and that the fixing plate 304 will not loosen. The drive motor 202 can drive the cutting disc 203, which is fixedly connected by the coupling, to rotate. The grinding disc 204 can grind the end of the cut tap. The pull rod 205 can pull and drive the placement box 201 to slide under the limit of the guide groove 102, thereby causing the cutting disc 203 to slide and cut the end of the tap that needs to be repaired.

[0031] The working principle of this hand-held straight flute tap short-joint repair device will be explained in detail below.

[0032] like Figure 1-5As shown, by placing the tap to be repaired inside the placement groove 301, the movable rod 5 is pushed to cause friction between the connecting frame 501 and the slider 305. This causes the slider 305 to slide inside the groove 302 under the frictional resistance of the connecting frame 501, compressing the second return spring 308. This, in turn, causes the fixing plate 304 to fix the tap to be repaired. Then, the fastening bolt 6 is rotated, and under the action of the thread engaging inside the thread groove 405, it moves into the thread groove 405. This causes the plastic clips 403 to move closer together under the frictional thrust of the fastening bolt 6, thus clamping and fixing the movable rod 5. This ensures the movable rod 5 is stably fixed, preventing the fixing plate 304 from loosening. Finally, the drive motor 202 is started to drive the coupling... The fixed cutting disc 203 rotates, and then the pull rod 205 is pulled to make the placement box 201 slide under the limit of the guide groove 102, thereby making the cutting disc 203 slide, thus cutting the end of the tap that needs to be repaired and cutting the broken end of the tap. After cutting, the pull rod 205 can be pulled repeatedly so that the grinding disc 204 can grind the end of the cut tap. After cutting, the fastening bolt 6 is turned to loosen the fixation of the movable rod 5. Then the movable rod 5 is pulled so that the connecting frame 501 no longer blocks the slider 305. At this time, the second return spring 308 can drive the limit block 307 to drive the slider 305 to drive the fixing plate 304 to perform a reset movement, thereby loosening the fixation of the tap and allowing the tap to be taken out.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A hand straight flute tap short repair device, comprising a workbench (1), a cutting device (2), a fixed block (3), a movable rod (5), characterized in that: The cutting device (2) is located at the bottom of the workbench (1). The movable rod (5) is located inside the fixed block (3). The fixed block (3) has a placement groove (301) on one side. The placement groove (301) has fixed plates (304) on both sides. A slider (305) is fixedly connected to one end of the fixed plate (304). The slider (305) has a first inclined surface (306) at the end away from the fixed plate (304). The movable rod (5) includes a connecting frame (501). The front ends of both ends of the connecting frame (501) have second inclined surfaces (502).

2. The hand tap short repair device of claim 1, wherein: The inner wall of the placement groove (301) is provided with sliding grooves (302) on both sides, and the slider (305) is slidably connected to the inside of the sliding groove (302). The first inclined surface (306) and the second inclined surface (502) are in contact.

3. The hand tap short repair device of claim 2, wherein: Limiting grooves (303) are provided on both sides of the inner wall of the slide (302), and limiting blocks (307) are fixedly connected to both ends of the slider (305). The slider (305) is slidably connected to the inside of the slide (302) through the limiting blocks (307) and the limiting grooves (303).

4. The hand tap short repair device of claim 3, wherein: The fixed block (3) has an open movable groove (309) inside, which is connected to the sliding groove (302). A sliding groove (3010) is opened on one side inner wall of the movable groove (309), and the movable rod (5) is slidably connected to the inside of the sliding groove (3010).

5. The hand tap short repair device of claim 4, wherein: One end of the limiting block (307) is fixedly connected to a second reset spring (308), and the end of the second reset spring (308) away from the limiting block (307) is fixedly connected to the inner wall of the limiting groove (303).

6. The hand tap short repair device of claim 5, wherein: One end of the fixed block (3) is fixedly connected to a connecting block (4). The connecting block (4) has an open movable cavity (401) inside. The movable cavity (401) is connected to the sliding groove (3010). A bottom block (402) is fixedly connected to the inner wall of one side of the movable cavity (401). A slot is opened inside the bottom block (402). The slot is adapted to the movable rod (5). A plastic buckle (403) is fixedly connected to the outer wall of one side of the bottom block (402) in a circumferential array.

7. The hand tap short repair device of claim 6, wherein: One end of the connecting block (4) is provided with a threaded groove (405), which is connected to the movable cavity (401). The threaded groove (405) is threaded with a fastening bolt (6). The fastening bolt (6) is provided with a through groove, which is adapted to the movable rod (5). The plastic buckle (403) is provided with a first sliding surface (404) at the end away from the bottom block (402), and a second sliding surface (601) is provided on the inner side of the fastening bolt (6).

8. The hand tap short repair device of claim 7, wherein: The cutting device (2) includes a placement box (201), a drive motor (202) is fixedly connected inside the placement box (201), the output shaft of the drive motor (202) is fixedly connected to a cutting disc (203) through a coupling, grinding discs (204) are provided on the outer walls of both sides of the cutting disc (203), and a cutting groove (101) is provided on the upper surface of the worktable (1).

9. The hand tap short repair device of claim 8, wherein: The bottom of the workbench (1) is provided with a guide groove (102). The upper end of the placement box (201) is slidably connected to the inside of the guide groove (102) through a guide block. The bottom of the workbench (1) is fixedly connected with a support plate (103). One end of the placement box (201) is fixedly connected with a pull rod (205). A first reset spring (104) is fixedly connected to one side wall of the support plate (103). The end of the first reset spring (104) away from the support plate (103) is fixedly connected to the outer wall of the placement box (201).

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