A helical flute tap anti-overcut structure

Abstract

The utility model relates to metal processing tool technical field, and disclose a kind of spiral flute tap anti overcut structure, including spiral flute tap body, the surface of spiral flute tap body is equipped with mounting seat, the surface of mounting seat is equipped with auxiliary device, auxiliary device includes two support plates, two support plates are fixedly connected with the surface of mounting seat, the surface of two support plates is all equipped with sliding slot, the surface of two support plate sliding slot is all slidingly connected with extension plate, the surface of two extension plates is equipped with several limit holes, the surface of two extension plates is fixedly connected with wear-resistant selvedge ring, the surface of wear-resistant selvedge ring is fixedly connected with four inductors, the surface of two support plates is all fixedly connected with short rod.This kind of spiral flute tap anti overcut structure avoids the overcut phenomenon due to unstable working condition, and staff is also difficult to observe in advance, leading to the expansion of the thread hole processed, so as to lead to the situation that thread accuracy is not accurate enough.

Description

Technical Field

[0001] This utility model relates to the field of metal processing tool technology, and in particular to a spiral groove tap anti-overcutting structure. Background Technology

[0002] In machining processes, spiral groove taps are often used to machine threaded holes. Their spiral groove design effectively removes chips, improving machining efficiency and quality.

[0003] Regarding the aforementioned and existing related technologies, the inventors believe that the following drawbacks often exist: In actual machining, the working conditions are often unstable, such as machine tool vibration and sudden changes in cutting force. Under unstable working conditions, taps are prone to overcutting. Because overcutting is relatively hidden, it is difficult for operators to observe it in advance. Overcutting will lead to an enlarged threaded hole, resulting in insufficient precision of the final thread, failing to meet the product's usage requirements, and seriously affecting the product's assembly and performance. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of overcutting under unstable working conditions, which is difficult for workers to observe in advance, resulting in enlarged threaded holes and insufficient thread accuracy. To address this, we propose a spiral groove tap anti-overcutting structure.

[0005] To achieve the above objectives, this application adopts the following technical solution: a spiral groove tap anti-overcutting structure, comprising a spiral groove tap body, a mounting base mounted on the surface of the spiral groove tap body, an auxiliary device provided on the surface of the mounting base, the auxiliary device comprising two support plates, the two support plates being fixedly connected to the surface of the mounting base, each of the two support plates having a sliding groove, each of the two support plate sliding grooves having an extension plate slidably connected to the surface of the two extension plates, each of the two extension plates having a plurality of limiting holes, each of the two extension plates having a wear-resistant burr ring fixedly connected to the surface of the two extension plates, each of the wear-resistant burr rings having four sensors fixedly connected to the surface of the wear-resistant burr rings, each of the two support plates having a short rod fixedly connected to the surface of the two support plates, each of the two short rods having a push plate slidably connected to the arc surface of the short rod, a limiting rod being slidably inserted into the push plate, and one end of the limiting rod being fixedly connected to a circular plate.

[0006] Preferably, the arc surface of the limiting rod is fitted with a spring, and the two ends of the spring are fixedly connected to the circular plate and the push plate, respectively.

[0007] Preferably, the short rod has a rotating ring rotatably connected to its arc surface, the rotating ring is fixedly connected to the surface of the push plate, and the surface of the support plate has a recycling groove.

[0008] Preferably, a positioning plate is fixedly connected to the surface of the support plate, and the size of the limiting rod is adapted to the size of the limiting hole on the surface of the extension plate.

[0009] Preferably, the surface of the spiral groove tap body is provided with a disassembly device, which includes two anti-slip pads. The two anti-slip pads are slidably connected to the surface of the spiral groove tap body. Connecting rods are fixedly connected to both sides of the spiral groove tap body. A long plate is fixedly connected to one end of each of the two connecting rods. A strip plate is rotatably connected to the arc surface of each of the two connecting rods. A fixing rod is slidably inserted into the strip plate. Fixing holes are opened on the surface of the anti-slip pads.

[0010] Preferably, a baffle is fixedly connected to the arc surface of the fixing rod, and the size of the fixing rod is adapted to the size of the fixing hole on the surface of the anti-slip pad.

[0011] Preferably, the arc surface of the connecting rod is fitted with a torsion spring, and the two ends of the torsion spring are fixedly connected to the strip plate and the spiral groove tap body, respectively.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, by setting an auxiliary device, the overcutting effect of the spiral groove tap body is achieved, avoiding the overcutting phenomenon caused by unstable working conditions, which is difficult for workers to observe in advance, resulting in the enlargement of the machined threaded hole and the inaccuracy of the thread, thus improving the practicality of the device.

[0014] In this invention, by setting up a disassembly device, a stable connection of the spiral groove tap body is achieved, avoiding the situation where the spiral groove tap body slips during operation, causing abnormal rotation due to slippage, which would lead to a decrease in tapping accuracy, thus improving the practicality of the device. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the auxiliary device in this utility model;

[0018] Figure 3 In this utility model Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a schematic diagram of the disassembly device in this utility model;

[0020] Figure 5 In this utility model Figure 4 Enlarged view of point B.

[0021] Legend: 1. Spiral groove tap body; 2. Mounting base; 3. Auxiliary device; 4. Disassembly device; 301. Support plate; 302. Extension plate; 303. Wear-resistant burr ring; 304. Sensor; 305. Short rod; 306. Rotating ring; 307. Push plate; 308. Limiting rod; 309. Spring; 310. Circular plate; 311. Positioning plate; 41. Anti-slip pad; 42. Connecting rod; 43. Torsion spring; 44. Long plate; 45. Strip plate; 46. Fixing rod; 47. Baffle. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] Reference Figure 1 As shown, this utility model provides a technical solution: a spiral groove tap anti-overcutting structure, including a spiral groove tap body 1, a mounting base 2 installed on the surface of the spiral groove tap body 1, and an auxiliary device 3 provided on the surface of the mounting base 2, which achieves the effect of preventing overcutting of the spiral groove tap body 1, avoiding overcutting under unstable working conditions, which is difficult for operators to observe in advance, resulting in enlarged threaded holes and insufficient thread accuracy, thus improving the practicality of the device. The surface of the spiral groove tap body 1 is provided with a disassembly device 4, which achieves the effect of stable connection of the spiral groove tap body 1, avoiding slippage of the spiral groove tap body 1 during operation, which would cause abnormal rotation of the spiral groove tap body 1 due to slippage, thus reducing the tapping accuracy, thus improving the practicality of the device.

[0024] The specific setup and function of its auxiliary device 3 and disassembly device 4 will be explained below.

[0025] Reference Figure 2 and Figure 3As shown in this embodiment: the auxiliary device 3 includes two support plates 301, which are fixedly connected to the surface of the mounting base 2. Each support plate 301 has a groove on its surface, and an extension plate 302 is slidably connected to the groove surface of each groove. Several limiting holes are provided on the surface of each extension plate 302. A wear-resistant burr ring 303 is fixedly connected to the surface of each extension plate 302, and four sensors 304 are fixedly connected to the surface of the wear-resistant burr ring 303. Short rods 305 are fixedly connected to the surface of each support plate 301, and a push plate 307 is slidably connected to the arc surface of each short rod 305. A limiting rod 308 is slidably inserted into the push plate 307. One end of the limiting rod 308 is fixedly connected to a circular plate 310. A spring 309 is fitted onto the arc surface of the limiting rod 308. The two ends of the spring 309 are fixedly connected to the circular plate 310 and the push plate 307, respectively. When the circular plate 310 is released, the rebound force of the spring 309 drives the circular plate 310, which in turn drives the limiting rod 308 to slide within the push plate 307 until the limiting rod 308 is inserted into the limiting hole on the surface of the extension plate 302. This achieves a stable connection of the limiting rod 308, preventing shaking caused by external factors from causing the limiting rod 308 to detach from the extension plate 302 and improving the stability of the device. The arc surface of the short rod 305 is rotatably connected to a rotating ring 30. 6. The rotating ring 306 is fixedly connected to the surface of the push plate 307. The surface of the support plate 301 is provided with a recycling groove. By pulling the limiting rod 308 out from the limiting hole on the surface of the extension plate 302, and then rotating the rotating ring 306 to drive the push plate 307 to rotate on the arc surface of the short rod 305, the push plate 307 drives the limiting rod 308, and the limiting rod 308 drives the circular plate 310 until the limiting rod 308 is perpendicular to the recycling groove on the surface of the support plate 301. Then, the circular plate 310 is pushed, and the circular plate 310 drives the limiting rod 308 to slide inside the push plate 307 until the limiting rod 308 is inserted into the recycling groove on the surface of the support plate 301, thus achieving the effect of rotating and recycling the limiting rod 308 and avoiding... Due to the shaking caused during adjustment, the limiting rod 308 slides back and forth within the push plate 307, requiring the operator to continuously pull the limiting rod 308. A positioning plate 311 is fixedly connected to the surface of the support plate 301. The size of the limiting rod 308 matches the size of the limiting hole on the surface of the extension plate 302. Rotating the rotating ring 306 causes the push plate 307 to rotate on the arc surface of the short rod 305. The push plate 307 drives the limiting rod 308, which in turn drives the circular plate 310 until the limiting rod 308 touches the positioning plate 311. This achieves the effect of quickly positioning the limiting rod 308, allowing the operator to quickly adjust the device and thus speed up the work process.

[0026] Reference Figure 4 and Figure 5As shown, specifically, the disassembly device 4 includes two anti-slip pads 41, which are slidably connected to the surface of the spiral groove tap body 1. Connecting rods 42 are fixedly connected to both sides of the spiral groove tap body 1. One end of each connecting rod 42 is fixedly connected to a long plate 44. A strip plate 45 is rotatably connected to the arc surface of each connecting rod 42. A fixing rod 46 is slidably inserted into the strip plate 45. Fixing holes are provided on the surface of the anti-slip pads 41. A baffle 47 is fixedly connected to the arc surface of the fixing rod 46. The size of the fixing rod 46 matches the size of the fixing hole on the surface of the anti-slip pad 41. By pulling the fixing rod 46, it slides within the strip plate 45, causing the baffle 47 to move until the baffle 47 touches the strip plate 45. 5. This achieves the effect of blocking the fixed rod 46, avoiding the shaking caused by disassembly and replacement, which could lead to the fixed rod 46 sliding out of the strip plate 45 and becoming damaged and unusable. The arc surface of the connecting rod 42 is fitted with a torsion spring 43, and the two ends of the torsion spring 43 are fixedly connected to the strip plate 45 and the spiral groove tap body 1, respectively. By releasing the fixation of the anti-slip pad 41, the torque of the torsion spring 43 drives the strip plate 45 to rotate on the arc surface of the connecting rod 42. The strip plate 45 drives the fixed rod 46 until the fixed rod 46 is reset, achieving the effect of automatic reset of the fixed rod 46. This reduces the number of operation steps for the staff, increases the work efficiency of the staff, and improves the convenience of the device.

[0027] Working principle: By pulling the limiting rod 308 out of the limiting hole on the surface of the extension plate 302, and then rotating the rotating ring 306 to drive the pushing plate 307 to rotate on the arc surface of the short rod 305, the pushing plate 307 drives the limiting rod 308, and the limiting rod 308 drives the circular plate 310 until the limiting rod 308 touches the positioning plate 311. Then, the circular plate 310 is pushed, and the circular plate 310 drives the limiting rod 308 to slide within the pushing plate 307 until the limiting rod 308 is inserted into the recycling groove on the surface of the support plate 301. Then, the wear-resistant burr ring 303 is pulled to drive the extension plate 302 to slide and adjust according to the required thread hole depth. After adjustment, the limiting rod 308 is pulled out of the recycling groove on the surface of the support plate 301, and then the rotating ring 306 is rotated to drive the pushing plate 307 to rotate on the arc surface of the short rod 305. The pushing plate 307 drives the limiting rod 308, and the limiting rod 308 drives the circular plate 310 until... The limiting rod 308 is perpendicular to the limiting hole on the surface of the extension plate 302. When the circular plate 310 is released, the rebound force of the spring 309 drives the circular plate 310, which in turn drives the limiting rod 308 to slide within the push plate 307 until the limiting rod 308 is inserted into the limiting hole on the surface of the extension plate 302. When the required precision is achieved, the spiral groove tap body 1 touches the wear-resistant burr ring 303. The vibration generated by the contact with the wear-resistant burr ring 303 is transmitted to the sensor 304. The sensor 304 transmits the signal to the operator's receiver to prompt the operator to stop the machining. This achieves the effect of preventing overcutting of the spiral groove tap body 1, avoiding overcutting under unstable working conditions. Since the operator may not be able to observe this in advance, the machined threaded hole may enlarge, resulting in insufficient thread precision. This improves the practicality of the device.

[0028] When anti-slip installation is required on the spiral groove tap body 1, and the anti-slip pad 41 is replaced, the fixing rod 46 is pulled, causing it to slide within the strip plate 45. The fixing rod 46 drives the baffle 47 until the baffle 47 touches the strip plate 45. The torque of the torsion spring 43 causes the strip plate 45 to rotate on the arc surface of the connecting rod 42. The strip plate 45 drives the fixing rod 46 until it returns to its original position. Then, the anti-slip pad 41 is placed by pushing the strip plate 45 on the arc surface of the connecting rod 42. As the surface rotates, the strip plate 45 drives the fixing rod 46 perpendicular to the fixing hole on the surface of the anti-slip pad 41, pushing the fixing rod 46 to slide within the strip plate 45 until the fixing rod 46 is inserted into the fixing hole on the surface of the anti-slip pad 41. This achieves a stable connection between the spiral groove tap body 1 and the device, preventing the spiral groove tap body 1 from slipping during operation, which could lead to abnormal rotation and reduced tapping accuracy. This improves the practicality of the device.

[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A spiral groove tap anti-overcutting structure, characterized in that, The device includes a spiral groove tap body, a mounting base mounted on the surface of the spiral groove tap body, an auxiliary device on the surface of the mounting base, and two support plates fixedly connected to the surface of the mounting base. Each support plate has a groove on its surface, and an extension plate is slidably connected to the groove surface of each support plate. Several limiting holes are formed on the surface of each extension plate. Wear-resistant burr rings are fixedly connected to the surface of each extension plate, and four sensors are fixedly connected to the surface of each wear-resistant burr ring. Short rods are fixedly connected to the surface of each support plate, and push plates are slidably connected to the arc surfaces of each short rod. A limiting rod is slidably inserted into the push plate, and a circular plate is fixedly connected to one end of each limiting rod.

2. The anti-overcutting structure of a spiral groove tap according to claim 1, characterized in that: The arc surface of the limiting rod is fitted with a spring, and the two ends of the spring are fixedly connected to the circular plate and the push plate, respectively.

3. The anti-overcutting structure for spiral groove taps according to claim 1, characterized in that: The short rod has a rotating ring rotatably connected to its arc surface. The rotating ring is fixedly connected to the surface of the push plate. The surface of the support plate has a recycling groove.

4. The anti-overcutting structure for a spiral groove tap according to claim 1, characterized in that: A positioning plate is fixedly connected to the surface of the support plate, and the size of the limiting rod is adapted to the size of the limiting hole on the surface of the extension plate.

5. The anti-overcutting structure for a spiral groove tap according to claim 1, characterized in that: The surface of the spiral groove tap body is provided with a disassembly device, which includes two anti-slip pads. The two anti-slip pads are slidably connected to the surface of the spiral groove tap body. Connecting rods are fixedly connected to both sides of the spiral groove tap body. A long plate is fixedly connected to one end of each of the two connecting rods. A strip plate is rotatably connected to the arc surface of each of the two connecting rods. A fixing rod is slidably inserted into the strip plate. Fixing holes are opened on the surface of the anti-slip pads.

6. The anti-overcutting structure for a spiral groove tap according to claim 5, characterized in that: A baffle is fixedly connected to the arc surface of the fixing rod, and the size of the fixing rod is adapted to the size of the fixing hole on the surface of the anti-slip pad.

7. The anti-overcutting structure for a spiral groove tap according to claim 5, characterized in that: The connecting rod has a torsion spring fitted on its arc surface, and the two ends of the torsion spring are fixedly connected to the strip plate and the spiral groove tap body, respectively.

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