Tapping device and tapping machine

Abstract

The invention relates to the technical field of tapping machines, in particular to a tapping device. Comprising a base, a plurality of rotating drivers arranged at the top of the base, a plurality of jacking air cylinders arranged at the top of the base, supporting rotating rods arranged on output shafts of the rotating drivers, ascending sliding plates arranged at the output ends of the jacking air cylinders in a sliding mode and clamping assemblies arranged on the ascending sliding plates and used for clamping workpieces to be drilled. The tapping device further comprises an adjusting tapping mechanism and a cleaning mechanism. The adjusting tapping mechanism is arranged at the top of the ascending sliding plate and comprises a tapping drill bit and an extending part. The tapping drill bit is slidably arranged outside the supporting rotating rod and located on the top of the ascending sliding plate. The multiple extending parts are arranged on the two sides of the tapping drill bit in a sliding mode correspondingly. According to the technical scheme, the tapping mechanism is adjusted, so that the requirements of different drilling diameters can be flexibly met under the condition that a tapping drill bit is not detached.

Description

Technical Field

[0001] The present invention relates to the technical field of tapping machines, and specifically relates to a tapping device and also to a tapping machine. Background Art

[0002] In the machinery manufacturing industry, drilling and tapping are common machining processes, which are widely used in many fields such as automotive parts, mechanical equipment, and hardware products. Drilling is the process of forming a round hole on a workpiece by a rotating drill bit, while tapping is the process of cutting an internal thread in the hole that has been drilled using a tap. The processing quality and efficiency of these two steps are directly related to the performance and market competitiveness of the final product.

[0003] However, in the prior art, there is a significant problem when a tapping drill bit is used for tapping and drilling: it is not convenient to adjust the diameter of the drilled hole. Since different workpieces or different parts of the same workpiece may require holes with different diameters, traditional tapping devices often need to frequently replace the drill bits to adapt to different processing requirements. This not only increases the operation complexity, reduces the production efficiency, but also increases the production cost because the replacement and inventory management of drill bits require additional resources and time.

[0004] In addition, frequently replacing the drill bit may also have an adverse effect on the machining accuracy. After each replacement of the drill bit, it is necessary to calibrate and debug to ensure that the positional relationship between the new drill bit and the workpiece is accurate. This process is not only time-consuming and laborious, but may also introduce human errors, resulting in unstable machining quality.

[0005] The tapping device and tapping machine provided by Chinese Patent Authorization Publication No. CN215588070U include a moving substrate, a steering component, and a tapping component; the moving substrate is used for slidingly arranged on a base; the steering component includes a first clamping member and a steering member, the first clamping member is connected to the moving substrate, the steering member is connected to the base, and the steering end of the steering member is used for being embedded in the steering hole of the workpiece to be tapped; the tapping component includes a second clamping member and a tapping member, the second clamping member is connected to the moving substrate, the tapping member is connected to the base, and the rotating rod of the tapping member is arranged corresponding to the tapping hole of the workpiece to be tapped. Before tapping the workpiece to be tapped, the workpiece to be tapped undergoes a steering process by the steering member, and then the workpiece to be tapped is rotated to a specified direction, so that the tapping hole of the workpiece to be tapped is rotated to a specified position, facilitating the alignment of the tapping member with the tapping hole of the workpiece to be tapped when the workpiece to be tapped moves to the tapping station, and improving the tapping accuracy of the workpiece to be tapped.

[0006] However, in actual use, when performing drilling and tapping operations on a workpiece to be tapped, the above structure shows the limitation of inconvenient adjustment of the drilling diameter. As a result, the operator needs to frequently replace the tapping drill bit to adapt to the drilling requirements of different diameters. This frequent replacement process not only increases the complexity of the operation but also significantly reduces the tapping efficiency of the workpiece, affecting the coherence and productivity of the overall machining process. Summary of the Invention

[0007] In view of the above problems, a tapping device is provided, which solves the problem of inconvenient adjustment of the drilling diameter by setting an adjustable tapping mechanism.

[0008] To solve the problems of the prior art, the present invention provides a tapping device, including a base, a plurality of rotary drivers arranged on the top of the base, a plurality of lifting cylinders arranged on the top of the base, a supporting rotary rod arranged on the output shaft of the rotary driver, a rising sliding plate slidably arranged on the output end of the lifting cylinder, and a clamping assembly arranged on the rising sliding plate for clamping the workpiece to be drilled. The tapping device further includes an adjustable tapping mechanism and a cleaning mechanism; the adjustable tapping mechanism is arranged on the top of the rising sliding plate, and the adjustable tapping mechanism includes a tapping drill bit and an extension part; the tapping drill bit is slidably arranged outside the supporting rotary rod and on the top of the rising sliding plate; there are a plurality of extension parts which are respectively slidably arranged on both sides of the tapping drill bit, and an opening for the extension part to extend out of the tapping drill bit is opened inside the tapping drill. The cleaning mechanism is arranged on the top of the rising sliding plate and beside the adjustable tapping mechanism.

[0009] Preferably, the adjustable tapping mechanism further includes a partition plate and a vertical rod; a plurality of abutting blocks are arranged outside the supporting rotary rod; a plurality of abutting grooves for abutting against the abutting blocks are opened inside the tapping drill bit, and a cavity for the supporting rotary rod to rotate is opened inside the tapping drill bit; the partition plate is arranged inside the tapping drill bit and above the cavity; there are a plurality of vertical rods which are respectively arranged on the top of the base, and there is a clearance fit between the vertical rods and the rising sliding plate.

[0010] Preferably, the adjustable tapping mechanism further includes a hydraulic cylinder and an ejecting block; the hydraulic cylinder is arranged on the top of the partition plate; the ejecting block is arranged on the output end of the hydraulic cylinder, the shape of the ejecting block is trapezoidal, and displacement grooves for the extension part to slide are opened on both trapezoidal surfaces of the ejecting block.

[0011] Preferably, the adjustable tapping mechanism further includes a limiting rod; the limiting rod is arranged on both sides of the ejecting block and on the top of the hydraulic cylinder, and there is a clearance fit between the limiting rod and the extension part, and when the ejecting block rises, it can drive the extension part to be in a sliding state along the guiding rod.

[0012] Preferably, the cleaning mechanism includes a limiting block, a sliding block and a connecting rod; there are a pair of limiting blocks which are arranged on the top of the ascending sliding plate, and both of the pair of limiting blocks are located beside the tapping drill bit; there are a pair of sliding blocks which are respectively slidably arranged on the top of the limiting blocks; the connecting rod is arranged on the top of the sliding block, one end of the connecting rod is rotatably connected to the limiting block, and the other end of the connecting rod is rotatably connected to the clamping assembly.

[0013] Preferably, the cleaning mechanism further includes a scraping plate; a discharge groove for waste chips to fall is formed on the top of the ascending sliding plate; there are a pair of scraping plates which are respectively arranged on the top of the sliding blocks, and the scraping plates are located above the ascending sliding plate, and when the limiting blocks slide, the scraping plates can be driven to slide synchronously.

[0014] Preferably, the cleaning mechanism further includes a rotating bearing sleeve, a mounting plate, a displacement block and a traction rope; the rotating bearing sleeve is rotatably arranged on the top of the ascending sliding plate and is located outside the vertical rod; the mounting plate is arranged on the top of the ascending sliding plate and there are multiple mounting plates; there are a pair of displacement blocks which are respectively slidably arranged on the top of the ascending sliding plate; the traction rope is arranged on the top of the displacement block, one end of the traction rope is fixedly connected to the displacement block, the other end of the traction rope is fixedly connected to the sliding block, and the traction rope is wound around the outside of the rotating bearing sleeve.

[0015] Preferably, the cleaning mechanism further includes a positioning plate, an elastic rope and a cleaning plate; the positioning plate is arranged on the top of the ascending sliding plate and there are multiple positioning plates; the elastic rope is arranged on the top of the positioning plate, one end of the elastic rope is fixedly connected to the positioning plate, the other end of the elastic rope is fixedly connected to the displacement block; there are a pair of cleaning plates which are respectively arranged on the top of the displacement blocks, and the cleaning plates are located above the ascending sliding plate.

[0016] Preferably, mounting brackets located beside the tapping drill bit are arranged on the top of the ascending sliding plate, and there are a pair of mounting brackets; there are a pair of cooling water tanks which are respectively arranged on the top of the mounting brackets; there are a pair of cooling spray pipes which are respectively arranged on both sides of the cooling water tank, and the cooling spray pipes are located above the tapping holes; a collection box is arranged at the bottom of the ascending sliding plate, and the collection box is located below the discharge groove.

[0017] The present invention also provides a tapping machine, which includes a tapping device as described above.

[0018] The beneficial effects of the present invention compared with the prior art are:

[0019] 1. By setting the adjusting tapping mechanism, the present invention realizes the ability to flexibly adapt to the requirements of different drilling diameters without disassembling the tapping drill bit.

[0020] 2. By setting the hydraulic cylinder, the ejecting block and the limiting rod, the present invention realizes that when the tapping drill bit rotates for tapping, the diameter of the drilled hole can be flexibly adjusted by adjusting the position of the extending part.

[0021] 3. The present invention realizes the automatic scraping of waste chips on the top of the ascending sliding plate by setting a cleaning mechanism. During this process, while the sliding block drives the scraper to clean, it also drives the displacement block and the cleaning plate to scrape and clean synchronously through the traction rope. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structure diagram of a tapping device of the present invention from a first perspective.

[0023] Figure 2 is a partially sectioned three-dimensional structure diagram of a tapping device of the present invention.

[0024] Figure 3 is a three-dimensional structure diagram of a tapping device of the present invention from a second perspective.

[0025] Figure 4 is a three-dimensional structure diagram of the cleaning mechanism of a tapping device of the present invention.

[0026] Figure 5 is a three-dimensional structure diagram of the ascending sliding plate of a tapping device of the present invention in an ascending state.

[0027] Figure 6 is a three-dimensional structure diagram of the tapping drill bit and the extension part of a tapping device of the present invention.

[0028] Figure 7 is a Figure 6 magnified structure diagram at position B in a tapping device of the present invention.

[0029] Figure 8 is a three-dimensional structure diagram of the tapping drill bit of a tapping device of the present invention.

[0030] Figure 9 is a three-dimensional structure diagram of the extension part of a tapping device of the present invention in an extended state.

[0031] Figure 10 is a three-dimensional structure diagram of the ejector block and the extension part of a tapping device of the present invention.

[0032] Figure 11 is Figure 5 magnified three-dimensional structure diagram at position B.

[0033] Figure 12 is Figure 5 magnified structure diagram at position C.

[0034] Figure 13 is Figure 5 magnified structure diagram at position A.

[0035] The reference numerals in the figure are: 1, base; 2, rotary driver; 3, lifting cylinder; 4, supporting rotary rod; 41, abutting block; 5, ascending sliding plate; 6, clamping assembly; 61, material placing plate; 62, clamping cylinder; 7, adjusting tapping mechanism; 71, tapping drill bit; 72, extension part; 721, opening; 73, partition plate; 74, vertical rod; 75, hydraulic cylinder; 76, ejecting block; 761, displacement groove; 77, limiting rod; 8, cleaning mechanism; 81, limiting block; 82, sliding block; 83, connecting rod; 84, scraping plate; 85, rotary bearing sleeve; 86, mounting plate; 87, displacement block; 88, traction rope; 89, positioning plate; 891, elastic rope; 892, cleaning plate; 9, mounting frame; 91, cooling water tank; 92, cooling spray pipe; 93, collection box. Detailed implementation manners

[0036] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0037] See Figures 1 - 5 As shown, a tapping device includes a base 1, a plurality of rotary drivers 2 arranged on the top of the base 1, a plurality of lifting cylinders 3 arranged on the top of the base 1, a supporting rotary rod 4 arranged on the output shaft of the rotary driver 2, an ascending sliding plate 5 slidably arranged on the output end of the lifting cylinder 3, and a clamping assembly 6 arranged on the ascending sliding plate 5 for clamping the workpiece to be drilled. The tapping device further includes an adjusting tapping mechanism 7 and a cleaning mechanism 8; the adjusting tapping mechanism 7 is arranged on the top of the ascending sliding plate 5, and the adjusting tapping mechanism 7 includes a tapping drill bit 71 and an extension part 72; the tapping drill bit is slidably arranged outside the supporting rotary rod 4 and on the top of the ascending sliding plate 5; there are a plurality of extension parts 72 which are respectively slidably arranged on both sides of the tapping drill bit 71, and an opening 721 for the extension part 72 to extend outside the tapping drill bit 71 is formed inside the tapping drill; the cleaning mechanism 8 is arranged on the top of the ascending sliding plate 5 and beside the adjusting tapping mechanism 7.

[0038] The clamping assembly 6 includes a material placing plate 61 and a clamping cylinder 62; there are multiple material placing plates 61 which are respectively arranged at the top of the vertical rod 74; the clamping cylinder 62 is arranged at the top of the material placing plate 61, and a contact plate is arranged at the output end of the clamping cylinder 62. The contact plate is cylindrical. When the clamping cylinder 62 is started, it can drive the contact plate to descend until the contact plate presses the workpiece to be tapped against the top of the material placing plate 61, and at this time, the clamping of the workpiece to be tapped is completed. After clamping, the lifting cylinder 3 is started and the rising sliding plate 5 is jacked upwards. Then the rotary driver 2 is started and drives the support rotary rod 4 to rotate. When the support rotary rod 4 rotates, it can drive the tapping drill bit to rotate synchronously, and the tapping drill bit 71 can slide on the top of the rising sliding plate 5 and can rotate under the action of the support rotary rod 4 at the same time, realizing the drilling work on the workpiece to be tapped clamped at the top of the material placing plate 61. When the tapping drill bit 71 rotates and the diameter of the drilled hole needs to be adjusted, the extension part 72 can slide along the opening 721 opened on the outside of the tapping drill bit 71 until the extension part 72 slides out of the outside of the tapping drill bit 71, which can expand the rotary drilling range of the tapping drill bit 71. The outside of the extension part 72 is circular. Normally, the extension part 72 is located inside the tapping drill bit 71 and is flush with the outside of the tapping drill bit 71, and external tapping threads matching the outside of the tapping drill bit 71 are opened on the outside of the extension part 72. It realizes the flexible adaptation to the requirements of different drilled hole diameters without disassembling the tapping drill bit 71.

[0039] See Figures 2 - 5 As shown, the adjusting tapping mechanism 7 further includes a partition plate 73 and a vertical rod 74; a plurality of contact blocks 41 are arranged on the outside of the support rotary rod 4; a plurality of contact grooves for contacting the contact blocks 41 are opened inside the tapping drill bit 71, and a cavity for the support rotary rod 4 to rotate is opened inside the tapping drill bit 71; the partition plate 73 is arranged inside the tapping drill bit 71 and above the cavity; there are a plurality of vertical rods 74 which are respectively arranged at the top of the base 1, and there is a clearance fit between the vertical rod 74 and the rising sliding plate 5.

[0040] The tapping drill bit 71 can be clamped with the contact blocks 41 arranged on the outside of the support rotary rod 4 through the opened contact grooves, so that when the support rotary rod 4 rotates, it can drive the tapping drill bit 71 to rotate synchronously. And when the rising sliding plate 5 rises, the tapping drill bit 71 can move along with the movement of the rising sliding plate 5 under the guiding action of the contact blocks 41, and can stably slide along the vertical rod 74 during the rising process of the rising sliding plate 5.

[0041] See Figures 5 - 9 As shown, the adjusting tapping mechanism 7 further includes a hydraulic cylinder 75 and an ejecting block 76; the hydraulic cylinder 75 is arranged at the top of the partition plate 73; the ejecting block 76 is arranged at the output end of the hydraulic cylinder 75. The shape of the ejecting block 76 is trapezoidal, and displacement grooves 761 for the extension part 72 to slide are opened on both trapezoidal surfaces of the ejecting block 76.

[0042] When it is necessary to drive the extension part 72 to slide, first, the hydraulic cylinder 75 arranged inside the tapping drill bit 71 is activated and drives the ejecting block 76 to slide upward. When the ejecting block 76 rises, the sliding of the extension part 72 is also restricted by the opening 721 opened outside the tapping drill bit 71. Under the combined action of the displacement groove 761 and the opening 721, the extension part 72 can extend outward from the tapping drill bit 71 orderly.

[0043] See Figures 5 - 9 As shown, the tapping mechanism 7 further includes a limiting rod 77; the limiting rod 77 is arranged on both sides of the ejecting block 76 and on the top of the hydraulic cylinder 75, and the limiting rod 77 is in clearance fit with the extension part 72. When the ejecting block 76 rises, it can drive the extension part 72 to slide along the guiding rod.

[0044] The limiting rod 77 is in clearance fit with the extension part 72, so that when the ejecting block 76 rises, the extension part 72 can slide stably along the displacement groove 761, the limiting rod 77 and the opening 721 at the same time, enabling the extension part 72 to expand and contract stably. Thus, when the tapping drill bit 71 rotates for tapping, the diameter of the drilled hole can be flexibly adjusted by adjusting the position of the extension part 72.

[0045] See Figures 10 - 13 As shown, the cleaning mechanism 8 includes limiting blocks 81, sliding blocks 82 and connecting rods 83; there are a pair of limiting blocks 81, which are arranged on the top of the ascending sliding plate 5, and both pairs of limiting blocks 81 are located beside the tapping drill bit 71; there are a pair of sliding blocks 82, which are respectively slidably arranged on the tops of the limiting blocks 81; the connecting rod 83 is arranged on the top of the sliding block 82. One end of the connecting rod 83 is rotatably connected to the limiting block 81, and the other end of the connecting rod 83 is rotatably connected to the clamping assembly 6.

[0046] During the ascending sliding process of the ascending sliding plate 5, the connecting rod 83 is in an inclined state. This inclined state can drive the sliding block 82 to slide towards the middle of the ascending sliding plate 5 along the direction of the limiting block 81. When the ascending sliding plate 5 descends under the action of the lifting cylinder 3, the connecting rod 83 continues to maintain an inclined state, and during this process, it drives the sliding block 82 to move away from the middle of the ascending sliding plate 5 along the limiting block 81.

[0047] See Figures 10 - 13 As shown, the cleaning mechanism 8 further includes scraping plates 84; discharge grooves for waste chips to fall are formed on the top of the ascending sliding plate 5; there are a pair of scraping plates 84, which are respectively arranged on the tops of the sliding blocks 82, and the scraping plates 84 are located above the ascending sliding plate 5. When the limiting block 81 slides, it can drive the scraping plates 84 to slide synchronously.

[0048] When the sliding block 82 moves, it can drive the scraper 84 to move synchronously. When the sliding block 82 moves towards the middle of the ascending sliding plate 5, the scraper 84 can scrape off the waste chips generated during the drilling of the workpiece to be tapped until the scraper 84 discharges the waste chips through the discharge groove. After the tapping drill bit 71 finishes working, it can automatically clean and scrape off the waste chips accumulated on the ascending sliding plate 5, thus keeping the working area clean and tidy.

[0049] See Figures 11 - 13 As shown, the cleaning mechanism 8 further includes a rotating bearing sleeve 85, a mounting plate 86, a displacement block 87 and a traction rope 88; the rotating bearing sleeve 85 is rotatably arranged on the top of the ascending sliding plate 5 and is located outside the vertical rod 74; the mounting plate 86 is arranged on the top of the ascending sliding plate 5 and there are multiple of them; there are a pair of displacement blocks 87 which are respectively slidably arranged on the top of the ascending sliding plate 5; the traction rope 88 is arranged on the top of the displacement block 87, one end of the traction rope 88 is fixedly connected to the displacement block 87, the other end of the traction rope 88 is fixedly connected to the sliding block 82, and the traction rope 88 is wound around the outside of the rotating bearing sleeve 85.

[0050] When the connecting rod 83 drives the sliding block 82 and the scraper 84 to scrape and move, during this process, the sliding block 82 can pull the traction rope 88. During this process, the traction rope 88 can stably perform a traction action along the rotating bearing sleeve 85. And when the traction rope 88 is in a pulled state, it can stably slide the displacement block 87 connected to the other end of the traction rope 88 along the ascending sliding plate 5, so that when the sliding block 82 slides, it can pull the displacement block 87 to move in the direction of the sliding block 82 through the traction rope 88.

[0051] See Figure 12 and Figure 13 As shown, the cleaning mechanism 8 further includes a positioning plate 89, an elastic rope 891 and a cleaning plate 892; the positioning plate 89 is arranged on the top of the ascending sliding plate 5 and there are multiple of them; the elastic rope 891 is arranged on the top of the positioning plate 89, one end of the elastic rope 891 is fixedly connected to the positioning plate 89, the other end of the elastic rope 891 is fixedly connected to the displacement block 87; there are a pair of cleaning plates 892 which are respectively arranged on the top of the displacement block 87, and the cleaning plates 892 are located above the ascending sliding plate 5.

[0052] When the displacement block 87 moves, the elastic rope 891 will be stretched and in a stretched state. At the same time, the movement of the displacement block 87 can drive the cleaning plate 892 to scrape the waste chips attached to the ascending sliding plate 5 until the cleaning plate 892 pushes the waste chips to the position of the discharge groove, thereby realizing the automatic scraping of the waste chips on the top of the ascending sliding plate 5. During this process, while the sliding block 82 drives the scraper 84 to clean, it also drives the displacement block 87 and the cleaning plate 892 to scrape and clean synchronously through the towing rope 88. When the ascending sliding plate 5 descends and the sliding block 82 moves away from the middle of the ascending sliding plate 5, the elastic rope 891 will contract and pull the displacement block 87 to move along the mounting plate 86 away from the support rotating rod 4. During this process, the cleaning plate 892 can move synchronously and return to the initial position.

[0053] See Figure 12 and Figure 13 As shown, a pair of mounting brackets 9 are provided on the top of the ascending sliding plate 5 beside the tapping drill bit 71; a pair of cooling water tanks 91 are provided and respectively arranged on the top of the mounting brackets 9; a pair of cooling spray pipes 92 are provided and respectively arranged on both sides of the cooling water tank 91, and the cooling spray pipes 92 are located above the tapping drill hole; a collection box 93 is provided at the bottom of the ascending sliding plate 5, and the collection box 93 is located below the discharge groove.

[0054] A submersible pump is provided inside the cooling water tank 91, and the submersible pump can supply the cooling water inside the cooling water tank 91 through the cooling spray pipe 92. The cooling spray pipe 92 is preferably made of stainless steel telescopic material that can be bent directionally. The cooling spray pipe 92 can be bent and located below the workpiece to be tapped, and can cool the tapping drill bit 71 during operation. During the tapping drill hole operation of the tapping drill bit 71, the cooling water inside the cooling water tank 91 is discharged through the cooling spray pipe 92 under the drive of the submersible pump. The cooling water directly acts on the rotating tapping drill bit 71 to effectively cool the workpiece to be tapped to prevent wear or damage caused by high temperature. When the scraper 84 and the cleaning plate 892 scrape on the ascending sliding plate 5, the waste chips on the top of the ascending sliding plate 5 can fall into the interior of the collection box 93 through the discharge groove, realizing the automatic collection of the waste chips.

[0055] The present invention also provides a tapping machine, including the above-mentioned tapping device.

[0056] Working principle: When the clamping cylinder 62 is activated, it drives the abutting plate to descend until the workpiece to be tapped is abutted against the top of the material placing plate 61 to complete the clamping. Subsequently, the lifting cylinder 3 is activated to lift the ascending sliding plate 5. At this time, the rotary driver 2 is activated to drive the support rotary rod 4 to rotate, thereby driving the tapping drill bit 71 to rotate synchronously. The tapping drill bit 71 slides on the top of the ascending sliding plate 5 and rotates under the action of the support rotary rod 4 to perform the drilling operation on the workpiece at the top of the material placing plate 61. During the drilling process, if it is necessary to adjust the drilling diameter, the extension part 72 can slide along the opening 721 outside the tapping drill bit 71 until it extends out of the outside of the tapping drill bit 71 to expand the drilling range. The outside of the extension part 72 is circular and is flush with the outside of the tapping drill bit 71 under normal conditions, and is provided with a matching external tapping thread. In this way, without disassembling the tapping drill bit 71, it can flexibly adapt to the requirements of different drilling diameters. The tapping drill bit 71 is clamped with the abutting block 41 outside the support rotary rod 4 through the abutting groove to achieve synchronous rotation. When the ascending sliding plate 5 ascends, the tapping drill bit 71 moves along the guiding action of the abutting block 41 and slides stably along the vertical rod 74. The sliding of the extension part 72 is realized by the hydraulic cylinder 75 inside the tapping drill bit 71 driving the ejecting block 76 to ascend, and is restricted by the opening 721 and the displacement groove 761 at the same time. The limiting rod 77 is in clearance fit with the extension part 72 to ensure the stable sliding of the extension part 72 and realize the flexible adjustment of the drilling diameter. During the ascending process of the ascending sliding plate 5, the connecting rod 83 is in an inclined state, driving the sliding block 82 to slide towards the middle along the limiting block 81. When the ascending sliding plate 5 descends, the connecting rod 83 remains in an inclined state, driving the sliding block 82 to move away from the middle. When the sliding block 82 moves, it drives the scraping plate 84 to move synchronously to scrape off the waste chips generated by drilling and discharge them through the discharge groove. At the same time, the sliding block 82 pulls the traction rope 88, and the traction rope 88 stably pulls along the rotary bearing sleeve 85 and pulls the displacement block 87 to slide along the ascending sliding plate 5. The movement of the displacement block 87 drives the cleaning plate 892 to scrape off the waste chips until they are pushed to the position of the discharge groove. The elastic rope 891 is stretched when the displacement block 87 moves, and when the sliding block 82 moves away from the middle, the elastic rope 891 contracts to pull the displacement block 87 and the cleaning plate 892 back to the initial position. In addition, the submersible pump inside the cooling water tank 91 supplies cooling water to the lower part of the tapping drill bit 71 through the cooling spray pipe 92 to cool the tapping drill bit 71 to prevent wear or damage caused by high temperature. The waste chips scraped by the scraping plate 84 and the cleaning plate 892 fall into the collection box 93 through the discharge groove to realize the automatic collection of waste chips.

[0057] The above embodiments merely represent one or several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A tapping device, comprising a base (1), a plurality of rotary drivers (2) arranged on the top of the base (1), a plurality of lifting cylinders (3) arranged on the top of the base (1), a supporting rotary rod (4) arranged on the output shaft of the rotary driver (2), a rising sliding plate (5) slidably arranged on the output end of the lifting cylinder (3), and a clamping assembly (6) arranged on the rising sliding plate (5) for clamping a workpiece to be drilled, characterized in that: The tapping device also includes a tapping adjustment mechanism (7) and a cleaning mechanism (8); The adjusting tapping mechanism (7) is arranged on the top of the ascending sliding plate (5), and the adjusting tapping mechanism (7) comprises a tapping drill bit (71) and an extension part (72); The tapping drill bit (71) is slidably arranged outside the supporting rotating rod (4) and located on the top of the ascending sliding plate (5); The extension parts (72) have a plurality of portions and are slidably arranged on both sides of the tapping drill bit (71), and an opening (721) is provided inside the tapping hole for the extension parts (72) to extend outside the tapping drill bit (71); The cleaning mechanism (8) is arranged on the top of the ascending sliding plate (5) and is located beside the adjusting tapping mechanism (7).

2. A tapping device according to claim 1, characterized in that: The adjusting tapping mechanism (7) further comprises a partition (73) and a vertical rod (74); a plurality of abutment blocks (41) are arranged outside the supporting rotating rod (4); a plurality of abutment grooves abutting against the abutment blocks (41) are arranged inside the tapping drill bit (71), and a cavity for supporting the rotating rod (4) to rotate is arranged inside the tapping drill bit (71); the partition (73) is arranged inside the tapping drill bit (71) and is located above the cavity; a plurality of vertical rods (74) are respectively arranged on the top of the base (1), and the vertical rods (74) are clearance-matched with the ascending sliding plate (5).

3. A tapping device according to claim 2, characterized in that: The adjusting tapping mechanism (7) further comprises a hydraulic cylinder (75) and an ejector block (76); the hydraulic cylinder (75) is arranged on the top of the partition (73); the ejector block (76) is arranged at the output end of the hydraulic cylinder (75); the ejector block (76) is in a trapezoidal shape, and both side stepped surfaces of the ejector block (76) are provided with displacement grooves (761) for the extension part (72) to slide.

4. A tapping device according to claim 2, characterized in that: The adjusting tapping mechanism (7) further comprises limiting rods (77); the limiting rods (77) are arranged on both sides of the ejection block (76) and are located at the top of the hydraulic cylinder (75), and the limiting rods (77) are clearance-matched with the extension part (72), and when the ejection block (76) rises, the extension part (72) can be driven to slide along the limiting rods (77).

5. A tapping device according to claim 1, characterized in that: The cleaning mechanism (8) comprises a limiting block (81), a sliding block (82) and a connecting rod (83); the limiting block (81) has a pair and is arranged on the top of the ascending sliding plate (5), and the pair of limiting blocks (81) are both located beside the tapping drill bit (71); the sliding block (82) has a pair and is respectively slidably arranged on the top of the limiting block (81); the connecting rod (83) is arranged on the top of the sliding block (82), one end of the connecting rod (83) is rotatably connected to the limiting block (81), and the other end of the connecting rod (83) is rotatably connected to the clamping assembly (6).

6. A tapping device according to claim 5, characterized in that: The cleaning mechanism (8) further comprises a scraper (84); a discharge groove for waste debris to fall is provided on the top of the ascending sliding plate (5); a pair of scrapers (84) are respectively arranged on the top of the sliding block (82), and the scrapers (84) are located above the ascending sliding plate (5), and when the limiting block (81) slides, the scrapers (84) can be driven to slide synchronously.

7. A tapping device according to claim 5, characterized in that: The cleaning mechanism (8) further comprises a rotating bearing sleeve (85), a mounting plate (86), a displacement block (87) and a traction rope (88); the rotating bearing sleeve (85) is rotatably arranged on the top of the ascending sliding plate (5) and is located outside the vertical rod (74); the mounting plate (86) is arranged on the top of the ascending sliding plate (5) and has a plurality of them; the displacement block (87) has a pair and is respectively slidably arranged on the top of the ascending sliding plate (5); the traction rope (88) is arranged on the top of the displacement block (87), one end of the traction rope (88) is fixedly connected to the displacement block (87), the other end of the traction rope (88) is fixedly connected to the sliding block (82), and the traction rope (88) is wound around the outside of the rotating bearing sleeve (85).

8. A tapping device according to claim 7, characterized in that: The cleaning mechanism (8) further comprises a positioning plate (89), an elastic rope (891) and a cleaning plate (892); the positioning plate (89) is arranged on the top of the ascending sliding plate (5) and has a plurality of them; the elastic rope (891) is arranged on the top of the positioning plate (89), one end of the elastic rope (891) is fixedly connected to the positioning plate (89), and the other end of the elastic rope (891) is fixedly connected to the displacement block (87); the cleaning plate (892) has a pair and is respectively arranged on the top of the displacement block (87), and the cleaning plate (892) is located above the ascending sliding plate (5).

9. A tapping device according to claim 1, characterized in that: A mounting frame (9) located beside the tapping drill bit (71) is arranged on the top of the ascending sliding plate (5), and the mounting frame (9) has a pair; a cooling water tank (91) has a pair and is respectively arranged on the top of the mounting frame (9); a cooling spray pipe (92) has a pair and is respectively arranged on both sides of the cooling water tank (91), and the cooling spray pipe (92) is located above the tapping drill hole; a collecting box (93) is arranged at the bottom of the ascending sliding plate (5), and the collecting box (93) is located below the discharge trough.

10. A tapping machine, characterized in that: A tapping device comprising any one of claims 1-9.

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