An automatic tapping machine

Abstract

The present invention belongs to the technical field of tapping equipment, specifically an automatic tapping machine, comprising a workbench, a first motor fixedly connected to the bottom of the workbench, an output shaft of the first motor fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the workbench through a bearing; a placement plate is fixedly connected to the top of the rotating shaft; a fixed frame is fixedly connected to the top of the workbench, and the fixed frame is arranged on the outside of the placement plate; a plurality of placement openings are opened on the placement plate; a limiting mechanism is provided on the placement plate; through the cooperation of the rack, the rack column and the gear ring, the synchronous movement of the plurality of racks is achieved, and during the movement of the rack, the trapezoidal block is driven to move by the rack, and during the movement of the trapezoidal block, since the two ends of the trapezoidal block slide on the inner sides of the clamps at both ends respectively, the two clamps are driven to move inward or outward at the same time through the two ends, and the function of fixing workpieces of different sizes is achieved by adjusting the distance between the two clamps.

Description

Technical Field

[0001] The invention belongs to the technical field of tapping equipment, in particular to an automatic tapping machine. Background Art

[0002] A tapping machine is a mechanical processing equipment that processes internal threads, screws or threads on the inner side surfaces of various parts with through holes or blind holes of different specifications, such as machine casings, equipment end faces, nuts, flanges, etc. Tapping machines are also called tapping machines, thread tapping machines, thread tapping machines, automatic tapping machines, etc.; traditional tapping machines use a positioning mechanism to position them during the tapping process, and then use a driving mechanism to drive the tapping head to rotate and synchronously apply downward pressure to achieve tapping operations on the workpiece.

[0003] A Chinese patent with publication number CN115338486B discloses a fully automatic tapping machine, including a frame and a loading mechanism installed on one side of the frame, a rotating mechanism, an interference mechanism provided at the edge of the frame, and a tapping mechanism fixedly installed at the edge of the frame; the workpiece to be processed is placed in the rotating mechanism, and through the cooperation of the driving mechanism and the cleaning mechanism, the tapping mechanism drives the suspension frame to move downward synchronously when moving downward for tapping, so that its side gear engages with the tooth plate to drive the first bevel gear to rotate, and the second bevel gear drives the center gear to rotate through the first horizontal gear. The rotation of the center gear synchronously realizes the rotation of multiple second horizontal gears on the outside and the bottom threaded rod, and the threaded rod and the threaded barrel realize threaded cooperation to drive the transmission frame downward, and the transmission frame synchronously drives multiple auxiliary rods to slide downward so that the nylon brush penetrates into the inside of the tapped workpiece, and cooperates with the rotation of the nylon brush to effectively clean the debris generated after tapping inside the workpiece.

[0004] In the current existing technology, the workpiece is placed in the rotating disk of the rotating mechanism and rotated horizontally, but the slots on the rotating disk are fixed. When fixing, it is usually necessary to clamp the protruding part of the workpiece on the slot. However, some workpieces have less protruding parts, resulting in the slot being unable to clamp the workpiece, so it is impossible to enter the next workstation for tapping.

[0005] Therefore, the present invention provides an automatic tapping machine. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the automatic tapping machine described in the present invention includes a workbench, the bottom of the workbench is fixedly connected to a first motor, the output shaft of the first motor is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the workbench through a bearing; the top of the rotating shaft is fixedly connected to a placement plate; the top of the workbench is fixedly connected to a fixed frame, and the fixed frame is arranged on the outside of the placement plate; a plurality of placement openings are opened on the placement plate; a limiting mechanism is provided on the placement plate; the limiting mechanism includes clamps arranged on the tops of both sides of the placement openings; two adjacent The ends of the splints close to the center of the placement plate are slidably connected to trapezoidal blocks; the middle parts of the trapezoidal blocks are fixed with racks; the racks are slidably connected to the top of the placement plate through sliders; the placement plate is rotatably connected to multiple tooth columns through a rotating shaft, and the tooth columns are engaged with adjacent racks; the top of the placement plate is rotatably connected to a gear ring through a bearing; multiple gear columns are engaged with the gear ring; multiple fixed plates are fixed to the top of the placement plate, and a sliding rod is fixed between two adjacent fixed plates, and the splints are slidably connected on the sliding rod; one end of one of the racks is provided with a driving mechanism.

[0008] Preferably, the driving mechanism includes a push plate fixed to the top of the rack; a pillar is fixed to the top center of the placement plate, a protective plate is fixed to the top of the pillar, an electric push rod is fixed to the top of the protective plate, the output end of the electric push rod is fixed to the push plate, and the push plate slides through the protective plate.

[0009] Preferably, a feed port is provided on the placement plate, and a feed mechanism is provided on one side of the feed port; a discharge port is provided at one end of the placement plate away from the feed port, and a material guide mechanism is provided on one side of the discharge port; a through port is also provided on the placement plate, and the through port is provided between the feed port and the discharge port, and a fixing mechanism is provided on one side of the through port.

[0010] Preferably, the feeding mechanism includes a base plate fixed to the top of the workbench; two fixing frames are symmetrically fixed to the two side walls of the base plate, a bidirectional ball screw is rotatably connected between the two fixing frames through a bearing, and there are only two movable plates threaded on the bidirectional ball screw, one end of the movable plate passes through the top of the base plate; the end of the movable plate away from the fixed frame is fixed to a limiting plate; a second motor is provided at one end of the bidirectional ball screw; two guide rods are fixed between the two fixing frames, and the movable plate is slidably connected to the two guide rods.

[0011] Preferably, the material guiding mechanism includes two mounting plates fixedly connected to the top of the placing table, a connecting shaft is rotatably connected between the two mounting plates through a bearing, a pushing plate is fixedly connected to the middle of the connecting shaft; a connecting rod is fixedly connected to one end of the connecting shaft; a sliding opening is provided on the connecting rod; a third motor is fixedly connected to the mounting plate on the same side as the connecting rod through an L-shaped plate, the output shaft of the third motor is fixedly connected to a rotating rod, the end of the rotating rod away from the third motor is fixedly connected to a limiting column, and the limiting column slides in the sliding opening.

[0012] Preferably, a discharge port is provided on the workbench; the discharge port is provided below the two mounting plates; a rotating plate is rotatably connected in the discharge port; a vertical plate is fixedly connected to the bottom of the workbench; a spring is fixedly connected between the vertical plate and the rotating plate.

[0013] Preferably, the fixing mechanism includes a support plate fixed to the top of the workbench, the top of the support plate is fixed with a first cylinder, the output end of the first cylinder is fixed with a connecting plate, and two arc-shaped plates are fixed to the connecting plate.

[0014] Preferably, a mounting bracket is installed on the top of the workbench through two threaded bolts, a second cylinder is fixedly connected to the top of the mounting bracket, an output end of the second cylinder is fixedly connected to a connecting seat, two vertical rods are fixedly connected to the top of the connecting seat, and the vertical rods are slidably connected to the mounting bracket; the bottom of the connecting seat is fixedly connected to the tapping equipment body; the output end of the first cylinder passes through the bottom end of the mounting bracket; a nozzle is connected and fixed to the mounting bracket, and the nozzle is a bellows; one end of the nozzle is externally connected to a water tank.

[0015] Preferably, a side panel is fixedly connected to the side wall of the mounting frame, a water spray pipe is connected and fixedly connected to the side panel, the bottom of the water spray pipe is rotatably connected to a rotating nozzle, and a turbine is fixedly connected to the inner wall of the rotating nozzle; the water spray pipe is directly above the placement port adjacent to the mounting frame; one end of the water spray pipe is also externally connected to the water tank.

[0016] Preferably, an annular baffle is fixedly connected to the top of the workbench; a slag discharge port is opened on the workbench, and the slag discharge port is located directly below the rotating nozzle; a collection box is fixedly connected to the bottom of the workbench, and the collection box is located below the slag discharge port and the discharge port.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The automatic tapping machine described in the present invention realizes the synchronous movement of multiple racks through the cooperation of racks, gear columns and gear rings. During the movement of the racks, the racks drive the trapezoidal blocks to move. During the movement of the trapezoidal blocks, the two ends of the trapezoidal blocks slide on the inner sides of the clamps at both ends respectively, thereby driving the two clamps to move inward or outward at the same time through the two ends. By adjusting the distance between the two clamps, the function of fixing workpieces of different sizes is realized.

[0019] 2. The automatic tapping machine described in the present invention cooperates with the connecting rod, the rotating rod and the push plate. Every time the first motor rotates 45 degrees, the third motor is turned on by controlling the system program. The third motor needs to rotate one circle, and the output shaft of the third motor drives the rotating rod to rotate, and the rotating rod drives the limit column to rotate. During the rotation of the limit column, the limit column drives the connecting rod to rotate by pressing the sliding port, and drives the connecting rod to complete a swing around the connecting shaft through the limit column, drives the connecting shaft to complete a swing through the connecting rod, drives the push plate to complete a swing through the connecting shaft, and pushes the workpiece out of the discharge port and drops it through the push plate, thereby realizing the function of pushing the tapping and unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a perspective view of the present invention;

[0022] Figure 2 It is a cross-sectional view of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the placement plate in the present invention;

[0024] Figure 4 It is a structural diagram of the fixing frame in the present invention;

[0025] Figure 5 It is a structural schematic diagram of the fixing frame in the present invention;

[0026] Figure 6 It is a structural schematic diagram of the pusher plate in the present invention;

[0027] Figure 7 It is a structural diagram of the tapping equipment body of the present invention;

[0028] Figure 8 is a cross-sectional view of the rotary sprinkler of the present invention;

[0029] In the figure: 1. workbench; 11. slag discharge port; 12. rotating plate; 13. vertical plate; 14. spring; 15. collecting box; 16. annular baffle; 2. fixed frame; 21. first motor; 22. rotating shaft; 23. placement plate; 24. placement port; 25. gear ring; 251. gear column; 252. rack; 253. trapezoidal block; 254. clamping plate; 255. fixed plate; 256. slide bar; 257. slider; 258. electric push rod; 259. push plate; 26. pillar; 261. protective plate; 3. feed port; 31. moving plate; 32. bottom plate; 33. limit plate; 34. fixed Frame; 35. Bidirectional ball screw; 36. Guide rod; 37. Second motor; 4. Discharge port; 41. Push plate; 42. Mounting plate; 43. Connecting shaft; 44. Connecting rod; 45. Sliding port; 46. Limiting column; 47. Rotating rod; 48. Third motor; 5. Through port; 51. Support plate; 52. First cylinder; 521. Connecting plate; 522. Arc plate; 53. Mounting frame; 531. Second cylinder; 532. Vertical rod; 533. Connecting seat; 534. Tapping equipment body; 54. Nozzle; 55. Side panel; 551. Water pipe; 552. Rotating nozzle; 553. Turbine. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0031] like Figures 1 to 3As shown, an automatic tapping machine according to an embodiment of the present invention comprises a workbench 1, wherein a first motor 21 is fixedly connected to the bottom of the workbench 1, an output shaft of the first motor 21 is fixedly connected to a rotating shaft 22, and the rotating shaft 22 is rotatably connected to the workbench 1 through a bearing; a placement plate 23 is fixedly connected to the top of the rotating shaft 22; a fixed frame 2 is fixedly connected to the top of the workbench 1, and the fixed frame 2 is arranged on the outside of the placement plate 23; a plurality of placement openings 24 are opened on the placement plate 23; a limiting mechanism is provided on the placement plate 23; the limiting mechanism comprises clamps 254 arranged on the tops of both sides of the placement openings 24; two adjacent clamps 254 are slidably connected at one end close to the center of the placement plate 23 It is connected to a trapezoidal block 253; a rack 252 is fixed to the middle of each trapezoidal block 253; the rack 252 is slidably connected to the top of the placement plate 23 through a slider 257; a plurality of tooth columns 251 are rotatably connected to the placement plate 23 through a rotating shaft, and the tooth columns 251 are all engaged with adjacent racks 252; a gear ring 25 is rotatably connected to the top of the placement plate 23 through a bearing; a plurality of the gear columns 251 are all engaged with the gear ring 25; a plurality of fixed plates 255 are fixed to the top of the placement plate 23, and a sliding rod 256 is fixed between two adjacent fixed plates 255, and the splints 254 are all slidably connected on the sliding rod 256; a driving mechanism is provided at one end of one of the racks 252.

[0032] A tapping machine is a type of machining equipment used to produce internal threads, screws, or threads on the inner surface of various parts with through holes or blind holes of different specifications, such as machine housings, equipment end faces, nuts, flanges, etc. Tapping machines are also called tapping machines, thread tapping machines, thread tapping machines, automatic tapping machines, etc. During the tapping process, the workpiece is positioned, but some workpieces have a small protruding portion, resulting in the workpiece being unable to be clamped in the notch, and therefore unable to enter the next station for tapping.

[0033] When the limiting mechanism provided by the present invention is used and needs to fix workpieces of different sizes, the driving mechanism is turned on and the connected rack 252 is driven to move by the output end of the driving mechanism. During the movement of the rack 252, the adjacent gear column 251 is driven to rotate by the rack 252, the gear ring 25 is driven to rotate by the gear column 251, the other gear columns 251 are driven to rotate by the gear ring 25, and the other racks 252 are driven to move by the gear column 251, thereby realizing the synchronous movement of multiple racks 252. During the movement of the rack 252, the trapezoidal block 253 is driven to move by the rack 252. During the movement of the trapezoidal block 253, since the two ends of the trapezoidal block 253 are respectively clamped at the two ends, The plate 254 slides inside, thereby driving the two clamps 254 to move inward or outward at the same time through both ends. By adjusting the distance between the two clamps 254, it is convenient to place workpieces of different sizes; during the movement of the clamp 254, the clamp 254 slides on the slide bar 256, and the slide bar 256 limits the clamp 254 to move in the horizontal direction, thereby realizing the function of fixing workpieces of different sizes; when working, by turning on the first motor 21, the output shaft of the first motor 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the placement plate 23 to rotate, and the placement plate 23 drives the workpiece to rotate, and the workpiece is rotated in turn to perform tapping, cleaning and unloading operations during the rotation process.

[0034] like Figure 1 and Figure 3 As shown, the driving mechanism includes a push plate 259 fixed to the top of the rack 252; a pillar 26 is fixed to the top center of the placement plate 23, a protective plate 261 is fixed to the top of the pillar 26, an electric push rod 258 is fixed to the top of the protective plate 261, and the output end of the electric push rod 258 is fixed to the push plate 259, and the push plate 259 slides through the protective plate 261.

[0035] The driving mechanism provided by the present invention is used to drive the rack 252 to move when in use. By turning on the electric push rod 258, the push plate 259 is driven to move through the output end of the electric push rod 258, and the push plate 259 drives the rack 252 connected to it to move. Through the engagement of the rack 252, the gear column 251 and the gear ring 25, the function of synchronous movement of multiple racks 252 is achieved. During the movement of the rack 252, the rack 252 slides on the slider 257, and the slider 257 limits the rack 252 to move on the center line of the placement opening 24 to maintain the stability of the movement.

[0036] like Figure 1 and Figure 4As shown, the placement plate 23 is provided with a feed port 3, and a feeding mechanism is provided on one side of the feed port 3; the placement plate 23 is provided with a discharge port 4 at one end away from the feed port 3, and a material guiding mechanism is provided on one side of the discharge port 4; the placement plate 23 is also provided with a through port 5, and the through port 5 is provided between the feed port 3 and the discharge port 4, and a fixing mechanism is provided on one side of the through port 5.

[0037] When the feed port 3 provided by the present invention is in use, the workpiece is fed through the feeding mechanism. When the workpiece moves to the feed port 3, the workpiece is driven to rotate by the rotation of the placement plate 23 until it rotates to the position of the through port 5. The workpiece is fixed by the fixing mechanism, and then tapped. Finally, it is rotated to the discharge port 4, and the tapped workpiece is pushed out for unloading through the material guiding mechanism; and the first motor 21 completes feeding, tapping and discharging once every 45° rotation.

[0038] like Figure 1 and Figure 5 As shown, the feeding mechanism includes a base plate 32 fixed to the top of the workbench 1; two fixing frames 34 are symmetrically fixed to the two side walls of the base plate 32, and a bidirectional ball screw 35 is rotatably connected between the two fixing frames 34 through a bearing, and only two movable plates 31 are threadedly connected on the bidirectional ball screw 35, and one end of the movable plate 31 is passed through the top of the base plate 32; the end of the movable plate 31 away from the fixed frame 2 is fixed to a limiting plate 33; a second motor 37 is provided at one end of the bidirectional ball screw 35; two guide rods 36 are fixed between the two fixing frames 34, and the movable plate 31 is slidably connected to the two guide rods 36.

[0039] The feeding mechanism provided by the present invention is used to load workpieces onto the placement plate 23 when in use. The workpieces are placed in the vibration disk before feeding. The workpieces are discharged through the vibration of the vibration disk, so that the workpieces are transported to the bottom plate 32 in an orderly manner, and then the workpieces are pushed by the electric push rod, so that a workpiece close to the workbench 1 is pushed onto the clamping plate 254; however, some workpieces are small in size and may fall over during the pushing process. By turning on the second motor 37, the output shaft of the second motor 37 drives the bidirectional ball screw 35 to rotate, and the bidirectional ball screw 35 drives the two movable plates 31 to move until the protruding part of the workpiece is just placed on the top of the two movable plates 31, stops moving, and then pushes them in one by one through the electric push rod for loading.

[0040] like Figure 6As shown, the material guiding mechanism includes two mounting plates 42 fixedly connected to the top of the placing table, and a connecting shaft 43 is rotatably connected between the two mounting plates 42 through a bearing, and a pushing plate 41 is fixedly connected to the middle of the connecting shaft 43; one end of the connecting shaft 43 is fixedly connected to a connecting rod 44; a sliding opening 45 is opened on the connecting rod 44; a third motor 48 is fixedly connected to the mounting plate 42 on the same side as the connecting rod 44 through an L-shaped plate, and the output shaft of the third motor 48 is fixedly connected to a rotating rod 47, and the end of the rotating rod 47 away from the third motor 48 is fixedly connected to a limiting column 46, and the limiting column 46 slides in the sliding opening 45.

[0041] The material guiding mechanism provided by the present invention is used to push out the workpiece after tapping when in use. Every time the first motor 21 rotates 45 degrees, the third motor 48 is turned on by controlling the system program. The third motor 48 needs to rotate one circle, and the output shaft of the third motor 48 drives the rotating rod 47 to rotate, and the rotating rod 47 drives the limiting column 46 to rotate. During the rotation of the limiting column 46, the limiting column 46 drives the connecting rod 44 to rotate by pressing the sliding port 45, and drives the connecting rod 44 to complete a swing around the connecting shaft 43 through the limiting column 46, drives the connecting shaft 43 to complete a swing through the connecting rod 44, drives the pushing plate 41 to complete a swing through the connecting shaft 43, and pushes the workpiece of the discharge port 4 out and drops it through the pushing plate 41, thereby realizing the function of pushing the tapping and unloading.

[0042] like Figure 2 and Figure 4 As shown, a discharge port is provided on the workbench 1; the discharge port is provided below the two mounting plates 42; a rotating plate 12 is rotatably connected in the discharge port; a vertical plate 13 is fixed to the bottom of the workbench 1; a spring 14 is fixed between the vertical plate 13 and the rotating plate 12.

[0043] When the rotating plate 12 provided by the present invention is in use, the tapped workpiece is pushed out by the push plate 41 and falls onto the rotating plate 12. Under the action of the spring 14, the rotating plate 12 will shake, which is used to guide the flow on the one hand to facilitate the falling of the workpiece, and on the other hand to facilitate the falling of the cooling water on the workpiece.

[0044] like Figure 1 and Figure 7 As shown, the fixing mechanism includes a support plate 51 fixed to the top of the workbench 1, the top of the support plate 51 is fixed with a first cylinder 52, the output end of the first cylinder 52 is fixed with a connecting plate 521, and two arc-shaped plates 522 are fixed to the connecting plate 521.

[0045] When the fixing mechanism provided by the present invention is in use, after the workpiece is rotated to the position of the through opening 5, the first motor 21 stops rotating, and the first cylinder 52 is turned on. The connecting plate 521 is driven to move through the output end of the first cylinder 52, and the arc plate 522 is driven to move through the connecting plate 521 until the arc plate 522 clamps the workpiece on the inner wall of the placement opening 24, thereby fixing the workpiece.

[0046] like Figure 7 As shown, a mounting bracket 53 is installed on the top of the workbench 1 through two threaded bolts, a second cylinder 531 is fixedly connected to the top of the mounting bracket 53, and the output end of the second cylinder 531 is fixedly connected to a connecting seat 533, and two vertical rods 532 are fixedly connected to the top of the connecting seat 533, and the vertical rods 532 are all slidably connected to the mounting bracket 53; a tapping equipment body 534 is fixedly connected to the bottom of the connecting seat 533; the output end of the first cylinder 52 passes through the bottom end of the mounting bracket 53; a nozzle 54 is connected and fixed to the mounting bracket 53, and the nozzle 54 is a bellows; one end of the nozzle 54 is externally connected to a water tank.

[0047] When the nozzle 54 provided by the present invention is in use and tapping is required, the second cylinder 531 is turned on, and the connecting seat 533 is driven to move by the output end of the second cylinder 531, and the tapping equipment body 534 is driven to move by the connecting seat 533, so as to drive the tapping equipment body 534 to the position of the workpiece. During the movement of the connecting seat 533, the connecting seat 533 drives the vertical rod 532 to move, and the vertical rod 532 slides on the mounting frame 53, and the mounting frame 53 is limited to move in the vertical direction by the vertical rod 532; in the tapping project, the coolant in the external water tank needs to be transported to the nozzle 54 by a water pump, and sprayed on the workpiece through the nozzle 54, which prevents debris from splashing on the one hand and cools the tapping equipment body 534 on the other hand, thereby helping to extend the life of the tapping equipment body 534; the debris is washed away by the coolant.

[0048] like Figure 7 and Figure 8 As shown, a side plate 55 is fixedly connected to the side wall of the mounting frame 53, and a water spray pipe 551 is connected and fixed to the side plate 55. The bottom of the water spray pipe 551 is rotatably connected to a rotating nozzle 552, and a turbine 553 is fixedly connected to the inner wall of the rotating nozzle 552; the water spray pipe 551 is directly above the placement opening 24 adjacent to the mounting frame 53; one end of the water spray pipe 551 is also externally connected to the water tank.

[0049] When the worm gear provided by the present invention is in use, there may be debris inside the workpiece. In order to remove the debris, the coolant in the external water tank is transported to the water spray pipe 551 through a water pump, and then transported to the rotating nozzle 552 through the water spray pipe 551. When transporting, the water spray pipe 551 drives the worm gear to rotate under the action of the water flow, and the rotating nozzle 552 is driven to rotate by the worm gear. The turbine 553 drives the nozzle to rotate continuously, so that the water flow covers the area in a dynamic manner, which is convenient for expanding the flushing range.

[0050] like Figure 2 and Figure 4 As shown, a ring baffle 16 is fixed to the top of the workbench 1; a slag discharge port 11 is opened on the workbench 1, and the slag discharge port 11 is located directly below the rotating nozzle 552; a collection box 15 is fixed to the bottom of the workbench 1, and the collection box 15 is located below the slag discharge port 11 and the discharge port.

[0051] When the slag discharge port 11 provided by the present invention is in use, the debris is washed by the water flow and falls between the annular baffle 16 and the fixed frame 2. Finally, under the action of the water flow, the debris falls from the slag discharge port 11 into the collection box 15. The water filtered on the rotating plate 12 and some debris will also fall into the collection box 15 and be uniformly recovered through the collection box 15.

[0052] Working principle: The workpiece is placed in the vibration plate before feeding, and the workpiece is transported to the bottom plate 32 in an orderly manner through the vibration discharge of the vibration plate, and then the workpiece is pushed by the electric push rod so that a workpiece close to the workbench 1 is pushed onto the clamping plate 254; however, some workpieces are small in size and may fall during the pushing process. By turning on the second motor 37, the bidirectional ball screw 35 is driven to rotate by the output shaft of the second motor 37, and the two movable plates 31 are driven to move by the bidirectional ball screw 35 until the protruding part of the workpiece is just placed on the top of the two movable plates 31, and the movement is stopped. Then, the workpiece is pushed in one by one by the electric push rod for loading.

[0053] When it is necessary to fix workpieces of different sizes, the electric push rod 258 is turned on, and the push plate 259 is driven to move by the output end of the electric push rod 258, and the connected rack 252 is driven to move by the push plate 259. During the movement of the rack 252, the adjacent gear column 251 is driven to rotate by the rack 252, and the gear ring 25 is driven to rotate by the gear column 251, and the other gear columns 251 are driven to rotate by the gear ring 25, and the other racks 252 are driven to move by the gear column 251, thereby realizing the synchronous movement of multiple racks 252. During the movement of the rack 252, the trapezoidal block 253 is driven to move by the rack 252. During the movement of the trapezoidal block 253, since the two ends of the trapezoidal block 253 are respectively at two ends, The clamping plate 254 at the end slides inside, thereby driving the two clamping plates 254 to move inward or outward at the same time through the two ends, and by adjusting the distance between the two clamping plates 254, it is convenient to place workpieces of different sizes; during the movement of the clamping plate 254, the clamping plate 254 slides on the sliding rod 256, and the sliding rod 256 limits the clamping plate 254 to move in the horizontal direction, thereby realizing the function of fixing workpieces of different sizes; when working, by turning on the first motor 21, the output shaft of the first motor 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the placement plate 23 to rotate, and the placement plate 23 drives the workpiece to rotate, and the workpiece realizes tapping, cleaning and unloading operations in the process of rotation.

[0054] When the workpiece rotates to the position of the through-port 5, the first motor 21 stops rotating and the first cylinder 52 is turned on. The connecting plate 521 is driven to move by the output end of the first cylinder 52, and the arc plate 522 is driven to move by the connecting plate 521 until the arc plate 522 clamps the workpiece on the inner wall of the placement port 24 to fix the workpiece; when tapping is required, the second cylinder 531 is turned on and the connecting seat 533 is driven to move by the output end of the second cylinder 531, and the tapping device body 534 is driven to move by the connecting seat 533, which is used to drive the tapping device body 534 to the position of the workpiece, and during the movement of the connecting seat 533, the connecting seat 533 drives the vertical rod 532 to move, and the vertical rod 532 slides on the mounting bracket 53, and the mounting bracket 53 is limited to the vertical position by the vertical rod 532. Move in the vertical direction; in the tapping project, the coolant in the external water tank needs to be transported to the nozzle 54 through a water pump, and sprayed on the workpiece through the nozzle 54. On the one hand, it prevents debris from splashing, and on the other hand, it is used to cool the tapping equipment body 534, which is beneficial to extend the life of the tapping equipment body 534; the debris is washed down by the coolant; there may be debris inside the workpiece. In order to remove the debris, the coolant in the external water tank is transported to the water spray pipe 551 through a water pump, and is transported to the rotating nozzle 552 through the water spray pipe 551. When the water spray pipe 551 is transporting, the worm gear is driven to rotate under the action of the water flow, and the rotating nozzle 552 is driven to rotate by the worm gear. The turbine 553 drives the nozzle to rotate continuously, so that the water flow covers the area in a dynamic manner, which is convenient for expanding the flushing range. The water flow washes the debris down between the annular baffle 16 and the fixed frame 2 , and finally, under the action of the water flow, the debris falls from the slag discharge port 11 into the collection box 15 . The water filtered on the rotating plate 12 and some of the debris also fall into the collection box 15 and are recovered uniformly through the collection box 15 .

[0055] Every time the first motor 21 rotates 45 degrees, the system program controls the third motor 48 to start. The third motor 48 rotates one circle, and the output shaft of the third motor 48 drives the rotating rod 47 to rotate. The rotating rod 47 drives the limiting column 46 to rotate. During the rotation of the limiting column 46, the limiting column 46 presses the sliding opening 45 to drive the connecting rod 44 to rotate. The limiting column 46 drives the connecting rod 44 to complete a swing around the connecting shaft 43. The connecting rod 44 drives the connecting shaft 43 to complete a swing. The connecting shaft 43 drives the push plate 41 to complete a swing. The push plate 41 pushes the workpiece out of the discharge port 4 and drops it, realizing the function of pushing the tapping. The push plate 41 pushes the tapped workpiece onto the rotating plate 12. Under the action of the spring 14, the rotating plate 12 will vibrate, which is used to guide the workpiece to fall and facilitate the cooling water on the workpiece to fall.

[0056] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic tapping machine, comprising a workbench (1), wherein a first motor (21) is fixedly connected to the bottom of the workbench (1), an output shaft of the first motor (21) is fixedly connected to a rotating shaft (22), and the rotating shaft (22) is rotatably connected to the workbench (1) through a bearing; a placement plate (23) is fixedly connected to the top of the rotating shaft (22); a fixed frame (2) is fixedly connected to the top of the workbench (1), and the fixed frame (2) is arranged on the outside of the placement plate (23); a plurality of placement openings (24) are opened on the placement plate (23); a limiting mechanism is provided on the placement plate (23); and the characteristics are: The limiting mechanism includes a clamping plate (254) provided at the top of both sides of the placement opening (24); one end of two adjacent clamping plates (254) close to the center of the placement plate (23) is slidably connected to a trapezoidal block (253); the middle of the trapezoidal block (253) is fixed with a rack (252); the rack (252) is slidably connected to the top of the placement plate (23) through a slider (257); a plurality of tooth columns (251) are rotatably connected to the placement plate (23) through a rotating shaft, and the tooth columns (251) are fixed to the middle of the trapezoidal block (253); the rack (252) is slidably connected to the top of the placement plate (23) through a slider (257); the placement plate (23) is rotatably connected to a plurality of tooth columns (251) through a rotating shaft, and the tooth columns (251) are fixed to the middle of the trapezoidal block (253); the rack (252) is fixed to the top of the placement plate (23) through a slider (257); the placement plate (23) is rotatably connected to the plurality of tooth columns (251) through a rotating shaft, and the tooth columns (251) are fixed to the middle of the trapezoidal block (253); the rack (252) is ... middle of the trapezoidal block (253); the 51) are all engaged with adjacent racks (252); the top of the placement plate (23) is rotatably connected to a gear ring (25) through a bearing; multiple tooth columns (251) are all engaged with the gear ring (25); the top of the placement plate (23) is fixed with multiple fixed plates (255), a slide bar (256) is fixed between two adjacent fixed plates (255), and the clamping plates (254) are all slidably connected on the slide bar (256); one end of one of the racks (252) is provided with a driving mechanism; The placement plate (23) is provided with a feed port (3), and a feed mechanism is provided on one side of the feed port (3); a discharge port (4) is provided at one end of the placement plate (23) away from the feed port (3), and a material guide mechanism is provided on one side of the discharge port (4); the placement plate (23) is also provided with a through port (5), and the through port (5) is provided between the feed port (3) and the discharge port (4), and a fixing mechanism is provided on one side of the through port (5); The feeding mechanism comprises a base plate (32) fixed to the top of the workbench (1); two fixing frames (34) are symmetrically fixed to the two side walls of the base plate (32); a bidirectional ball screw (35) is rotatably connected between the two fixing frames (34) via a bearing; two movable plates (31) are threadedly connected to the bidirectional ball screw (35); one end of the movable plate (31) is passed through the top of the base plate (32); one end of the movable plate (31) away from the fixing frame (2) is fixed to a limiting plate (33); one end of the bidirectional ball screw (35) is provided with a second motor (37); two guide rods (36) are fixed between the two fixing frames (34), and the movable plate (31) is slidably connected to the two guide rods (36); The material guiding mechanism comprises two mounting plates (42) fixedly connected to the top of the workbench (1), a connecting shaft (43) being rotatably connected between the two mounting plates (42) via a bearing, a pushing plate (41) being fixedly connected to the middle of the connecting shaft (43); a connecting rod (44) being fixedly connected to one end of the connecting shaft (43); a sliding opening (45) being provided on the connecting rod (44); a third motor (48) being fixedly connected to the mounting plate (42) on the same side as the connecting rod (44) via an L-shaped plate, an output shaft of the third motor (48) being fixedly connected to a rotating rod (47), an end of the rotating rod (47) away from the third motor (48) being fixedly connected to a limiting column (46), and the limiting column (46) sliding in the sliding opening (45).

2. The automatic tapping machine according to claim 1, characterized in that: The driving mechanism includes a push plate (259) fixed to the top of the rack (252); a pillar (26) is fixed to the top center of the placement plate (23); a protective plate (261) is fixed to the top of the pillar (26); an electric push rod (258) is fixed to the top of the protective plate (261); an output end of the electric push rod (258) is fixed to the push plate (259), and the push plate (259) slides through the protective plate (261).

3. The automatic tapping machine according to claim 2, characterized in that: The workbench (1) is provided with a discharge port; the discharge port is provided below two mounting plates (42); a rotating plate (12) is rotatably connected in the discharge port; a vertical plate (13) is fixedly connected to the bottom of the workbench (1); a spring (14) is fixedly connected between the vertical plate (13) and the rotating plate (12).

4. The automatic tapping machine according to claim 3, characterized in that: The fixing mechanism comprises a support plate (51) fixedly connected to the top of the workbench (1); a first cylinder (52) is fixedly connected to the top of the support plate (51); an output end of the first cylinder (52) is fixedly connected to a connecting plate (521); and two arc-shaped plates (522) are fixedly connected to the connecting plate (521).

5. The automatic tapping machine according to claim 4, characterized in that: A mounting frame (53) is mounted on the top of the workbench (1) via two threaded bolts, a second cylinder (531) is fixedly connected to the top of the mounting frame (53), an output end of the second cylinder (531) is fixedly connected to a connecting seat (533), two vertical rods (532) are fixedly connected to the top of the connecting seat (533), and the vertical rods (532) are slidably connected to the mounting frame (53); a tapping device body (534) is fixedly connected to the bottom of the connecting seat (533); the output end of the first cylinder (52) passes through the bottom end of the mounting frame (53); a nozzle (54) is connected and fixed to the mounting frame (53), and the nozzle (54) is a bellows; one end of the nozzle (54) is externally connected to a water tank.

6. The automatic tapping machine according to claim 5, characterized in that: A side plate (55) is fixedly connected to the side wall of the mounting frame (53); a water spray pipe (551) is connected and fixedly connected to the side plate (55); a rotating spray head (552) is rotatably connected to the bottom of the water spray pipe (551); a turbine (553) is fixedly connected to the inner wall of the rotating spray head (552); the water spray pipe (551) is directly above the placement opening (24) adjacent to the mounting frame (53); and one end of the water spray pipe (551) is also externally connected to the water tank.

7. The automatic tapping machine according to claim 6, characterized in that: The top of the workbench (1) is fixedly connected to an annular baffle (16); a slag discharge port (11) is provided on the workbench (1), and the slag discharge port (11) is located directly below the rotating nozzle (552); the bottom of the workbench (1) is fixedly connected to a collection box (15), and the collection box (15) is located below the slag discharge port (11) and the discharge port.

Images