A reinforcing bar sleeve tapping apparatus
By using a double-sided feeding conveyor and a bidirectional tapping mechanism, combined with cutting fluid spraying and purging pipes, the problem of incomplete chip removal in rebar sleeve tapping equipment has been solved, achieving efficient and clean processing and improving the quality and efficiency of finished products.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 邯郸市硕洋紧固件制造有限公司
- Filing Date
- 2026-06-17
- Publication Date
- 2026-07-21
AI Technical Summary
Existing rebar sleeve tapping equipment has difficulty removing small debris from the threaded hole in a timely manner during processing, which affects the quality of the finished product.
It adopts a double-sided feeding and conveying mechanism and a bidirectional tapping mechanism, combined with cutting fluid spray, blow pipe and cleaning brush. Cutting fluid is sprayed to the tapping position through the cutting fluid spray pipe, the cleaning brush enters the threaded hole with the tap to clean it, and the blow pipe blows the threaded hole. With the swing of the worktable and the tilt of gravity, it ensures that the chips are discharged in time.
It effectively reduces tap wear and scratches on the threaded hole surface, improves finished product quality, and enhances processing efficiency and positioning accuracy.
Smart Images
Figure CN122425267A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of tapping technology, specifically, it relates to a rebar sleeve tapping device. Background Technology
[0002] A rebar sleeve, also known as a rebar connector, is a connecting component used to connect rebars and has an internal thread corresponding to the threaded rebar. The processing quality of its internal thread directly determines the strength of the rebar connection and the safety of construction. Currently, the processing of the internal thread of the rebar sleeve mainly relies on tapping machines.
[0003] Early tapping processes mostly used manual or unidirectional tapping equipment, which required manual clamping and processing of both ends of the sleeve in two separate steps. This resulted in high labor intensity, low efficiency, and difficulty in ensuring the concentricity of the threads at both ends. With technological advancements, bidirectional synchronous tapping equipment has emerged on the market. By symmetrically arranging tapping heads on both sides of the worktable, it enables synchronous processing of both ends of the sleeve, significantly improving production efficiency and positioning accuracy.
[0004] Although existing bidirectional tapping equipment has a high level of automation, a large amount of metal debris is generated in the threaded holes at both ends during actual production. The existing treatment methods mostly rely on single cutting fluid flushing or air blowing after processing. This treatment method is difficult to remove the fine debris inside the thread in time during processing, which can easily lead to tap wear, thread surface scratches, and thus affect the finished quality of the sleeve. Summary of the Invention
[0005] The purpose of this invention is to provide a rebar sleeve tapping device, which solves the technical problem in related technologies that it is difficult to remove small debris from the threaded hole in time during the processing, thus affecting the finished quality of the rebar sleeve.
[0006] At least one embodiment of the present invention provides a rebar sleeve tapping device, including a body, and further comprising: A worktable, which is located in the middle of the machine body and can swing back and forth; A limit stop bar is fixedly installed on the machine body. There are two limit stop bars, which are located below the worktable to limit the swing angle of the worktable. A dual-sided feeding and conveying mechanism, disposed on the worktable, is used to convey the sleeve to be processed to the dual-sided tapping station. The dual-sided feeding and conveying mechanism includes: Two rolling channels are provided, one on each side of the workbench, for receiving and guiding the sleeve into the work station. A clamping assembly, disposed at the end of the roll-off channel, is capable of adaptively clamping sleeves of different sizes to maintain their stability during the tapping process. The clamping assembly includes: Two tapping tables are provided and fixedly mounted on the worktable. Each tapping table corresponds to a roll-off channel. A positioning plate is provided, which can be raised and lowered on the tapping table to receive the sleeve rolling off the rolling channel. The positioning plate is provided with a positioning groove for accurately positioning the sleeve axis. The chuck is vertically mounted on the tapping table and located above the positioning groove. The chuck and the positioning groove cooperate to precisely clamp the sleeve. A pusher plate, which is movably mounted on the positioning plate, is used to push the sleeve that rolls off the rolling channel to the positioning groove. A bidirectional tapping mechanism, which is reciprocatingly mounted on the worktable, is used to alternately tap the sleeves on both sides. The bidirectional tapping mechanism includes: A movable stage is reciprocatingly mounted on the worktable. As the movable stage moves, the center of gravity of the worktable shifts and it swings back and forth under the action of gravity. Two taps are provided, and the two taps are rotatably disposed at both ends of the movable table. The taps and the tapping table correspond one-to-one. A cleaning component, detachably mounted on the bidirectional tapping mechanism, moves with the bidirectional tapping mechanism, and cleans the threaded hole after tapping. The cleaning component includes: A detachable mounting plate is detachably disposed on the outside of the tap and is in close contact with the tap; the detachable mounting plate rotates with the tap. A cleaning brush is fixedly mounted on the disassembly plate, and the cleaning brush is in contact with the inner wall of the threaded hole of the sleeve; A cutting fluid spray pipe is disposed on the clamping assembly and is used to spray cutting fluid onto the tapping position; A purge tube, which is disposed outside the tap and rotates with the tap, has an outlet for blowing high-pressure gas into the threaded hole of the sleeve. A chip dropper is fixedly installed below the clamping assembly, i.e., the tapping position, for receiving and conveying tapping chips. The chip dropper is provided with sieve holes for separating chips and cutting fluid. A liquid collection tank is provided below the chip dropper to collect cutting fluid, and the liquid collection tank is connected to a drain pipe for discharging the cutting fluid. A conveyor, disposed below the debris droppers, is used to centrally transport debris sliding down from the two debris droppers. The conveyor includes: A conveying trough is fixedly installed on the machine body and located below the debris discharge frame; A conveyor belt, which is disposed inside the conveyor trough and rotates to transport debris.
[0007] To reduce chip splashing, a chip baffle is provided on the tapping table, and the positioning groove and the chuck are both located within the range of the chip baffle.
[0008] To further facilitate the falling of chips, the chip baffle is equipped with a blow-off pipe inside for blowing hot air to the tapping table and the chip dropper.
[0009] To promptly scrape off debris from the conveyor belt, a collection box is fixedly installed at the discharge end of the conveyor trough, and a scraper is fixedly installed on the collection box, with the scraper in contact with the surface of the conveyor belt.
[0010] To enable the movement of the mobile platform, a drive gear is rotatably mounted at the center of the mobile platform, and a fixed rack is fixedly mounted on the worktable, with the drive gear meshing with the fixed rack.
[0011] 1. Compared with the prior art, the rebar sleeve tapping device provided in this embodiment of the invention conveys the sleeve to be tapped to the tapping positions on both sides of the worktable through a double-sided feeding conveyor mechanism. The sleeve on both sides is tapped alternately by a bidirectional tapping mechanism. During the tapping process, the cutting fluid spray pipe sprays cutting fluid to the tapping position for cooling, lubrication and rinsing. The cleaning brush enters the threaded hole of the sleeve with the tap to clean its inner wall. The blowing pipe moves and rotates with the tap to thoroughly blow the threaded hole and the tap, thereby ensuring the cleaning effect of the tap and the sleeve, timely removing small debris inside the threaded hole, reducing tap wear and scratches on the surface of the threaded hole.
[0012] 2. Compared with the prior art, the rebar sleeve tapping device provided in this embodiment of the invention, as the bidirectional tapping mechanism moves back and forth, the center of gravity of the worktable changes and swings, causing the axis of the sleeve to tilt periodically with the horizontal plane. With the flushing of the cutting fluid and the blowing of the blower, the debris is discharged from the inside of the threaded hole by gravity assistance, and the direction of tilting is the direction of tapping. Compared with the prior art that simply relies on liquid pressure flushing, it is more thorough.
[0013] 3. Compared with the prior art, the rebar sleeve tapping device provided in this embodiment of the invention uses a chip baffle to block the chips generated during tapping, flushing, and blowing to a certain extent, reducing chip splashing. At the same time, the chip blower assists in blowing the chips on the tapping table onto the chip slide frame. The hot air blown by the blower can help separate the chips and cutting fluid on the chip slide frame. The chips fall onto the conveyor belt and are collected and processed, which facilitates chip recycling and reduces chip splashing. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a first-view structural schematic diagram of a rebar sleeve tapping device provided in an embodiment of the present invention; Figure 2 This is an embodiment of the present invention. Figure 1 A schematic diagram of the overall structure from a second perspective; Figure 3 This is an embodiment of the present invention. Figure 1 A structural diagram of the central body, worktable, limit stop bar, and bidirectional tapping mechanism; Figure 4 This is an embodiment of the present invention. Figure 1 Schematic diagram of the structure of the central purging pipe, moving stage, tap and cleaning components; Figure 5 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the medium-sized chip drop frame, liquid collection tank, chip baffle plate and double-sided feeding conveyor mechanism; Figure 6 This is an embodiment of the present invention. Figure 1 A partial cross-sectional structural diagram of the chip drop frame, liquid collection tank, chip baffle plate, and double-sided feeding conveyor mechanism; Figure 7 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the discharge chute, the rolling channel, and the clamping assembly; Figure 8 This is an embodiment of the present invention. Figure 1 A schematic diagram of the structure of the middle rolling channel, positioning plate, push plate and adjusting screw; Figure 9 This is an embodiment of the present invention. Figure 1 A magnified schematic diagram of the structure at point A in the middle.
[0016] In the picture: 1. Machine body; 2. Workbench; 3. Limiting stop bar; 4. Discharge chute; 5. Finished product box; 6. Cutting fluid spray pipe; 7. Blow pipe; 8. Annular air supply seat; 9. Rotary plate; 10. Snap ring; 11. Chip drop rack; 12. Liquid collection tank; 13. Chip baffle plate; 14. Blow pipe; 101. Roll-off channel; 102. Tapping table; 103. Positioning plate; 104. Claw; 105. Push plate; 106. Adjusting screw; 107. Drive plate; 108. Electric cylinder one; 109. Pressure plate; 110. Electric cylinder two; 201. Moving table; 202. Tap; 203. Limiting rod; 204. Drive gear; 205. Motor; 206. Fixed rack; 207. Spindle; 301. Disassembly / removal panel; 302. Cleaning brush; 401. Conveying trough; 402. Conveying belt; 403. Collection box; 404. Scraper. Detailed Implementation
[0017] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure. For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this disclosure will be explained and described below.
[0018] It should be understood that the described embodiments are merely some, not all, of the embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.
[0019] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0020] It should be understood that the term "and / or" used in this article is merely a way of describing the logical relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.
[0021] Depending on the context, the word "if" as used here can be interpreted as "when" or "when" or "in response to determination" or "in response to detection." Similarly, depending on the context, the phrase "if determination" or "if detection (of the stated condition or event)" can be interpreted as "when determination" or "in response to determination" or "when detection (of the stated condition or event)" or "in response to detection (of the stated condition or event)."
[0022] It should be understood that the terms "first," "second," etc., used in this disclosure are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.
[0023] In the description of this disclosure, the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as a limitation of this disclosure.
[0024] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0025] like Figures 1-9 As shown, it illustrates a rebar sleeve tapping device according to an embodiment of the present invention, including a machine body 1, a workbench 2, a limit stop bar 3, a double-sided feeding conveyor mechanism, a bidirectional tapping mechanism, a cleaning component, a cutting fluid spray pipe 6, a blowing pipe 7, a chip dropper 11, a liquid collection tank 12, and a conveyor.
[0026] like Figures 1-3As shown, the worktable 2 is located in the middle of the machine body 1 and can swing back and forth. A central rotating shaft is fixedly installed in the middle of the worktable 2. The central rotating shaft is rotatably mounted on the machine body 1. Two limit stops 3 are fixedly installed on the machine body 1. The limit stops 3 are located below the worktable 2 and are symmetrically arranged relative to the central rotating shaft to limit the swing angle of the worktable 2. The worktable 2 can rotate and swing around the central rotating shaft. After rotating to a certain angle, the bottom of the worktable 2 contacts the limit stops 3 and is blocked by them, thereby limiting the swing angle of the worktable 2 and preventing it from overturning due to excessive swing amplitude. A limit electric cylinder is installed on the machine body 1. An anti-slip pad is fixedly installed at the output end of the limit electric cylinder. When it is necessary to fix the worktable 2, such as when repairing or replacing the tap 202, the limit electric cylinder drives the anti-slip pad to press against the side of the worktable 2, which can ensure the stability of the worktable 2 and prevent the worktable 2 and the components mounted on it from shaking during operation.
[0027] A dual-sided feeding conveyor mechanism is installed on the workbench 2 to transport the sleeves to be processed to the dual-sided tapping station. The dual-sided feeding conveyor mechanism includes a rolling channel 101 and a clamping assembly. There are two rolling channels 101, which are respectively located on both sides of the workbench 2 to receive and guide the sleeves into the station. The rolling channels 101 are inclined, with the higher side being the feeding end and the lower side connected to the clamping assembly being the discharge end. The clamping assembly is located at the end of the rolling channel 101 and can adaptively clamp sleeves of different specifications to maintain their stability during the tapping process. The clamping assembly includes a tapping table 102, a positioning plate 103, a chuck 104, and a pusher plate 105. There are two tapping tables 102, and the tapping tables 102 are fixedly installed. Placed on the workbench 2, the tapping table 102 and the rolling channel 101 correspond one-to-one. The positioning plate 103 is raised and lowered on the tapping table 102 to receive the sleeve rolling down from the rolling channel 101. The rolling channel 101 is fixedly mounted on the positioning plate 103 and rises and falls with it. The positioning plate 103 is fixedly connected to a slider. The tapping table 102 has a groove that matches the slider. An adjusting screw 106 is rotatably mounted on the tapping table 102. The adjusting screw 106 is threadedly connected to the positioning plate 103. The height of the positioning plate 103 can be adjusted by manually rotating the adjusting screw 106. The top and bottom of the positioning plate 103 are connected to telescopic protective sleeves. The adjusting screw 106 is located inside the telescopic protective sleeves to prevent debris from damaging the adjusting screw 106 and the positioning plate 103. The threaded engagement of plate 103 creates an obstruction. A positioning groove is provided on the positioning plate 103 to precisely position the sleeve axis. The rebar sleeve to be tapped rolls from the rolling channel 101 onto the positioning plate 103 and enters the positioning groove. The height of the positioning plate 103 is adjusted by adjusting screw 106 to ensure that the axis of the rebar sleeve in the positioning groove coincides with the axis of the tap 202, guaranteeing the accuracy of tapping by the tap 202. The chuck 104 is vertically adjustable and positioned above the positioning groove on the tapping table 102. The chuck 104 and the positioning groove work together to precisely clamp the sleeve. The positioning groove and the chuck 104 are vertically and vertically aligned with the axis of the tap 202. The top of the chuck 104 is fixedly connected to a drive plate 107 via a sliding rod, which passes through... A return spring is provided between the tapping table 102, the drive plate 107, and the tapping table 102. An electric cylinder 108 is rotatably mounted on the tapping table 102, and a pressure plate 109 is rotatably connected to the tapping table 102. The middle part of the pressure plate 109 is rotatably mounted on the tapping table 102 via a rotating shaft. One end of the pressure plate 109 contacts the top end of the drive plate 107, and the other end of the pressure plate 109 is rotatably connected to the output end of the electric cylinder 108. The extension and retraction of the electric cylinder 108 can drive the end of the pressure plate 109 connected to it to rise and fall, while the other end of the pressure plate 109 moves in the opposite direction under the action of a lever, thereby pressing the drive plate 107, which in turn drives the chuck 104 to descend and press the sleeve tightly inside the positioning groove, ensuring the stability of the sleeve during the tapping process.The lower end of the chuck 104 is open, which can position the cylindrical sleeve and keep it in the middle position between the chuck 104 and the positioning groove. The push plate 105 is movably mounted on the positioning plate 103 to push the sleeve rolling off the rolling channel 101 to the positioning groove. An electric cylinder 110 is mounted on the tapping table 102, and the push plate 105 is fixedly mounted on the output end of the electric cylinder 110. There is a certain gap between the rolling channel 101 and the positioning plate 103 to accommodate a sleeve to be tapped. 4. The sleeve at the end of the rolling channel 101 can be blocked and limited. The sleeve in the positioning groove at the processing position blocks and limits the sleeve in the gap between the rolling channel 101 and the positioning plate 103. The tapping table 102 is fixedly provided with a discharge groove 4 at the end away from the rolling channel 101. The finished product box 5 is provided below the discharge groove 4. After tapping is completed, the tap 202 is withdrawn from the inside of the sleeve. The electric cylinder 108 drives the end of the pressure plate 109 that contacts the drive plate 107 to rise. Under the action of the return spring, the drive plate 107 is raised. 07. The chuck 104 rises to release the limiting effect on the sleeve. After rising, the chuck 104 still limits the sleeve at the end of the rolling channel 101. Electric cylinder 110 pushes the sleeve that has fallen onto the positioning plate 103 to move into the positioning groove. Electric cylinder 108 drives the chuck 104 to descend and fix the sleeve inside the positioning groove. During the pushing process, the output shaft of electric cylinder 110 limits the upper sleeve. Then, electric cylinder 110 drives the push plate 105 to return to its original position, and the sleeve at the end of the rolling channel 101... The sleeve falls onto the positioning plate 103, where it is stopped by the sleeve and pusher plate 105 located in the positioning groove. Simultaneously, the sleeve to be entered into the positioning groove and the claw 104 on the positioning plate 103 stop the sleeve at the end of the rolling channel 101, thus achieving precise sequential feeding of the sleeves. When the electric cylinder 110 drives the pusher plate 105 to push subsequent sleeves into the positioning groove, the already processed sleeves are pushed forward into the discharge chute 4 and roll into the finished product box 5 for collection, achieving automatic loading and unloading.
[0028] like Figures 1-4As shown, a bidirectional tapping mechanism is reciprocatingly mounted on a worktable 2 for alternately tapping the sleeves on both sides. The bidirectional tapping mechanism includes a moving table 201 and a tap 202. The moving table 201 is reciprocatingly mounted on the worktable 2. As the moving table 201 moves, the center of gravity of the worktable 2 shifts and it oscillates back and forth under the action of gravity. A limit rod 203 is fixedly mounted on the worktable 2. The moving table 201 and the limit rod 203 are in sliding engagement. A drive gear 204 is rotatably mounted at the middle position of the moving table 201. A motor 205 is mounted at the middle position of the moving table 201. The drive gear 204 is fixedly mounted at the output end of the motor 205. A fixed rack 206 is fixedly mounted on the worktable 2. The drive gear 204 and the fixed rack 205 are rotatably mounted at the middle position of the moving table 201. A fixed rack 206 engages with the tap 202, which is rotatably mounted at both ends of the moving table 201. Each tap 202 corresponds to a tapping table 102. Two spindles 207 are rotatably mounted on the moving table 201, and the taps 202 are detachably mounted on them. The two spindles 207 are fixedly connected. A drive mechanism for rotating the spindles 207 is mounted on the moving table 201. A motor 205 can be used as the drive, and a belt or chain can be used as the transmission component. The motor 205 drives the spindles 207 and taps 202 to rotate for tapping. The drive mechanism for the spindles 207 is prior art known to those skilled in the art and is not a major improvement in this embodiment; therefore, it is not shown in the figures. This does not affect the understanding of this embodiment. The motor 205 drives the drive gear 204 to rotate. Under the action of the fixed rack 206, the drive gear 204 moves along the fixed rack 206, thereby causing the moving table 201 to slide along the limit rod 203, driving the tap 202 to move and perform the tapping action. As the moving table 201 moves, the center of gravity of the worktable 2 gradually changes, causing the worktable 2 to deflect. The tap 202 moves in the tapping direction, and the center of gravity of the worktable 2 also deflects in the tapping direction, causing the chip removal position of the sleeve being processed to tilt downward, which facilitates the complete removal of chips. After tapping on one side is completed, the motor 205 drives the drive gear 204 to reverse, and at the same time, the spindle 207 and the tap 202 reverse, causing the tap 202 to move from the tapping position. The sleeve is withdrawn after finishing and moves to the other side to tap the sleeve on the tapping table 102 on the other side, thereby realizing the alternating processing of the sleeve on both sides and improving the efficiency of tapping. The motor 205 and the drive gear 204 are set in the middle position of the moving table 201 to reduce the impact on the center of gravity of the worktable 2. A baffle is set at the top of the rolling channel 101, and a baffle is also set on the positioning plate 103 except for the position between the positioning slots to prevent the sleeve from falling off the rolling channel 101 or the positioning plate 103 during the swing of the worktable 2. The traveling speed of the moving table 201 and the rotation speed of the spindle 207 and the tap 202 are precisely controlled by calculation and regulation. The two work together to process the threaded hole with a suitable pitch.
[0029] The cleaning component is detachably mounted on the bidirectional tapping mechanism. It moves with the mechanism and cleans the threaded hole after tapping. The cleaning component includes a disassembly plate 301 and a cleaning brush 302. The disassembly plate 301 is detachably mounted on the outside of the tap 202 and is in close contact with it. The disassembly plate 301 rotates with the tap 202. The cleaning brush 302 is fixedly mounted on the disassembly plate 301 and contacts the inner wall of the threaded hole of the sleeve. One end of the disassembly plate 301 is detachably mounted on the spindle 207 via bolts. The disassembly plate 301 is in close contact with the shaft of the tap 202. The end of the cleaning brush 302 is flush with or slightly higher than the outer side of the tap 202. On the outside of the tap 202, as the moving table 201 moves the tap 202 into the inside of the sleeve for tapping, the cleaning brush 302 rotates with the tap 202 and enters the threaded hole of the sleeve. The cleaning brush 302 thoroughly cleans the inside of the threaded hole. After the tap 202 finishes tapping, it continues to move forward, moving the cleaning brush 302 out of the threaded hole, thereby cleaning out the debris and ensuring the cleaning effect inside the threaded hole. The mounting plate 301 can be easily disassembled and assembled by bolts, so that when the cleaning brush 302 wears out or debris accumulates in the cleaning brush 302 after a long period of cleaning, the cleaning brush 302 can be replaced.
[0030] The cutting fluid spray pipe 6 is installed on the clamping assembly and is used to spray cutting fluid onto the tapping position. The cutting fluid spray pipe 6 is installed on the tapping table 102, specifically on the chip retainer 13, with its outlet facing the tapping position. The cutting fluid spray pipe 6 sprays cutting fluid into the threaded hole of the sleeve, cooling, lubricating, and rinsing the sleeve and tap 202, and washing away the chips in the tap 202 and sleeve. When the cleaning brush 302 is removed from the threaded hole of the sleeve, it can also be rinsed, cooling the cleaning brush 302 and washing away the chips on its surface, further reducing the residue of chips in the tap 202 and sleeve. During tapping, the worktable 2 swings to tilt the sleeve, making it easier for the cutting fluid to pour out from the threaded hole of the sleeve, thereby improving the chip cleaning effect.
[0031] A purge pipe 7 is located outside the tap 202 and rotates with the tap 202. The purge pipe 7 has an outlet for blowing high-pressure gas into the threaded hole of the sleeve. An annular air supply seat 8 is fixedly installed on the moving table 201. The annular air supply seat 8 and the main shaft 207 are coaxially arranged. The side of the annular air supply seat 8 away from the moving table 201 is open, and a rotating plate 9 is rotatably connected to the open side of the annular air supply seat 8. The purge pipe 7 is installed on the rotating plate 9 and communicates with the annular air supply seat 8. The annular air supply seat 8 and the air supply... The air equipment is connected, and a retaining ring 10 is fixedly installed on the main shaft 207. The purge pipe 7 can be snapped into the inside of the retaining ring 10. The air outlet of the purge pipe 7 is located on the side of the cleaning brush 302 near the moving table 201. The air outlet blows high-pressure gas to the cleaning brush 302 and the threaded hole. The main shaft 207 drives the purge pipe 7 to rotate through the retaining ring 10, so that the purge pipe 7 can perform a more comprehensive purge of the inside of the threaded hole. The rotation of the rotating plate 9 can cooperate with the rotation of the purge pipe 7 with the main shaft 207 and the tap 202.
[0032] The chip dropper 11 is fixedly installed below the clamping assembly to receive and transport tapping chips. The chip dropper 11 has sieve holes for separating chips and cutting fluid. A fluid collection tank 12 is located below the chip dropper 11 to collect cutting fluid. The fluid collection tank 12 is connected to a drain pipe for discharging the cutting fluid. The chips generated by tapping with tap 202 are pushed out from inside the sleeve and fall onto the chip dropper 11 through the combined action of the cutting fluid spray pipe 6, the rotation of tap 202, the cleaning brush 302, the blowing pipe 7, and the tilting action of the worktable 2. The chips and cutting fluid are separated through the sieve holes, allowing the cutting fluid to fall into the fluid collection tank 12 for collection and discharge through the drain pipe. The cutting fluid is centrally processed by connecting the outlets of the drain pipes of multiple devices to the same location, such as a waste liquid pool. The cutting fluid flows into the waste liquid pool for centralized processing, reducing the cutting fluid residue on the surface of the chips. This reduces the adhesion of chips to components such as the conveyor and tapping table 102, and facilitates subsequent chip recycling. As the worktable 2 swings, the tilt angle of the chip dropper 11 changes, which can delay the residence time of chips on the chip dropper 11 and improve the separation effect of chips and cutting fluid. At the same time, when the worktable 2 rotates to contact the limit stop bar 3, a certain impact force is generated, and the rotation of the tap 202 will also vibrate, which can drive the chip dropper 11 to vibrate, assisting the chip to slide off and the cutting fluid to drip off.
[0033] To reduce chip splashing, a chip baffle 13 is provided on the tapping table 102. The positioning groove and the chuck 104 are both located within the chip baffle 13. Inside the chip baffle 13 is a blow-off pipe 14 for blowing hot air onto the tapping table 102 and the chip dropper 11. A cutting fluid spray pipe 6 is located inside the chip baffle 13. The cutting fluid sprayed by the cutting fluid spray pipe 6, the high-pressure gas blown by the blow-off pipe 7, and the chips generated by the tap 202 are all blocked inside the chip baffle 13, thereby reducing chip splashing. Most of the chips and cutting fluid fall onto the chip dropper 11, which facilitates the recycling of chips and cutting fluid and reduces damage to the processing environment. The blow-off pipe 14 is connected to an external air supply device, and a heater is installed on the connecting pipe so that the blow-off pipe 14 blows hot air onto the chip dropper 11 to help dry the chips, which is convenient for subsequent chip recycling. At the same time, it helps to blow the chips on the tapping table 102 and the positioning plate 103, as well as the chips on the sleeve, onto the chip dropper 11, and also helps to blow the chips off the chip dropper 11.
[0034] A conveyor is installed below the chip drop racks 11 to collect and transport the chips that slide off the two chip drop racks 11. The conveyor includes a conveying trough 401 and a conveyor belt 402. The conveying trough 401 is fixedly installed on the machine body 1 and located below the chip drop racks 11. The conveyor belt 402 is installed inside the conveying trough 401 and rotates to transport the chips. In order to scrape the chips off the conveyor belt 402 in time, a collection box 403 is fixedly installed at the discharge end of the conveying trough 401. A scraper 404 is fixedly installed on the collection box 403. The scraper 404 is in contact with the surface of the conveyor belt 402. The chips on the two chip drop racks 11 slide onto the conveyor belt 402. The conveyor belt 402 collects and transports the fallen chips to the collection box 403. The scraper 404 scrapes the chips off the conveyor belt 402 and makes them fall into the collection box 403, reducing the adhesion of chips on the conveyor belt 402 and facilitating the complete collection of chips.
[0035] The working principle or usage process of this rebar sleeve tapping equipment is as follows: According to the diameter of the sleeve, the height of the positioning plate 103 is pre-adjusted. The adjusting screw 106 is rotated to make the positioning plate 103 rise and fall along the tapping table 102 so that the sleeve is in the positioning groove and corresponds to the axis of the tap 202. The steel bar sleeve to be tapped is placed into the rolling channel 101. The sleeve rolls down along the rolling channel 101 to the end and contacts the chuck 104. One sleeve is between the rolling channel 101, the positioning plate 103, the push plate 105 and the chuck 104. The electric cylinder 108 drives the chuck 104 to rise. The electric cylinder 210 drives the push plate 105 to push one sleeve into the positioning groove. The electric cylinder 108 drives the pressure plate 109 to rotate, so that the drive plate 107 drives the chuck 104 to fall and press the sleeve into the positioning groove and make its axis correspond to the axis of the tap 202. The electric cylinder 210 drives the push plate 105 to return to the original position. Another sleeve continues to fall on the rolling channel 101 and is in the push position. The spindle 207 drives the tap 202 to rotate, and the motor 205 drives the drive gear 204 to rotate, causing the moving table 201 to move along the fixed rack 206 and the limit rod 203. The tap 202 enters the sleeve in the positioning groove to perform tapping. During the tapping process, the cutting fluid spray pipe 6 sprays cutting fluid into the tapping position, especially into the threaded hole of the sleeve, to rinse it. The tap 202 passes through the sleeve and drives the cleaning brush 302 into the threaded hole to clean it. At the same time, the blowing pipe 7 blows high-pressure gas into the threaded hole to clean it. The chip baffle 13 blocks the cutting fluid, high-pressure gas and chips. The tap 202 and the cleaning brush 302 push the chips out of the inside of the threaded hole and onto the chip slide frame 11. The cutting fluid falls into the inside of the collection tank 12 through the sieve holes and is discharged through the drain pipe for centralized treatment. The chips slide down the chip slide frame 11 onto the conveyor belt 402. The conveyor belt 402 sends the chips into the inside of the collection box 403 for collection. The scraper 404 scrapes the chips off the conveyor belt 402. As the moving table 201 moves and rotates the tap 202 to perform tapping, the center of gravity of the worktable 2 changes accordingly, deflecting towards the tapping position, causing the sleeve in the tapping process to tilt downwards, facilitating the complete discharge of internal debris. Then, the spindle 207 and the tap 202 rotate in opposite directions, and the motor 205 drives the drive gear 204 to rotate in opposite directions, causing the moving table 201 to rotate the tap 202 out of the threaded hole and move to the opposite side to tap the sleeve on the other side, thus achieving alternating tapping of the sleeves on both sides.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rebar sleeve tapping device, comprising a body (1), characterized in that, Also includes: Workbench (2), the workbench (2) is located in the middle of the machine body (1) and can swing back and forth; Limiting stop (3), the limiting stop (3) is fixedly installed on the machine body (1), there are two limiting stop (3), the limiting stop (3) is located below the worktable (2) to limit the swing angle of the worktable (2); A double-sided feeding and conveying mechanism is set on the workbench (2) to convey the sleeve to be processed to the double-sided tapping station; A bidirectional tapping mechanism is reciprocated and mounted on the worktable (2) for alternating tapping of the sleeves on both sides; A cleaning component is detachably mounted on the bidirectional tapping mechanism. The cleaning component moves with the bidirectional tapping mechanism and cleans the inside of the threaded hole after tapping. A cutting fluid spray pipe (6) is used to spray cutting fluid onto the tapping position; The purge pipe (7) is provided on the bidirectional tapping mechanism and has an outlet for blowing high-pressure gas into the threaded hole of the sleeve. A chip dropper (11) is fixedly installed below the tapping position to receive and transport tapping chips. The chip dropper (11) is provided with sieve holes for separating chips and cutting fluid. A liquid collection tank (12) is provided below the chip dropper (11) to collect cutting fluid. The liquid collection tank (12) is connected to a drain pipe for discharging cutting fluid. A conveyor is provided below the chip drop rack (11) for the centralized conveying of chips that slide off the two chip drop racks (11).
2. The rebar sleeve tapping device according to claim 1, characterized in that, The dual-sided feeding conveyor mechanism includes: Rolling channels (101) are provided in two places. The two rolling channels (101) are respectively provided on both sides of the workbench (2) to receive and guide the sleeve into the work station. A clamping assembly is disposed at the end of the roll-off channel (101) and can adaptively clamp sleeves of different specifications to maintain their stability during the tapping process.
3. The rebar sleeve tapping device according to claim 2, characterized in that, The clamping assembly includes: Two tapping tables (102) are provided. The tapping tables (102) are fixedly installed on the worktable (2). The tapping tables (102) and the rolling channels (101) correspond one-to-one. Positioning plate (103), which can be raised and lowered on the tapping table (102) to receive the sleeve rolling down from the rolling channel (101), and the positioning plate (103) is provided with a positioning groove for accurately positioning the sleeve axis; The chuck (104) is vertically mounted on the tapping table (102) and located above the positioning groove. The chuck (104) and the positioning groove cooperate to precisely clamp the sleeve. A push plate (105) is movably disposed on the positioning plate (103) for pushing the sleeve that rolls off the rolling channel (101) to the positioning groove.
4. The rebar sleeve tapping device according to claim 3, characterized in that, The bidirectional tapping mechanism includes: A movable stage (201) is reciprocally mounted on the worktable (2). As the movable stage (201) moves, the center of gravity of the worktable (2) shifts and swings back and forth under the action of gravity. Tap (202), two taps (202) are provided, and the two taps (202) are rotatably disposed at both ends of the moving table (201), and the taps (202) and the tapping table (102) correspond one to one.
5. The rebar sleeve tapping device according to claim 4, characterized in that, The cleaning component includes: The disassembly plate (301) is detachably disposed on the outside of the tap (202) and is in close contact with the tap (202). The disassembly plate (301) rotates with the tap (202). A cleaning brush (302) is fixedly mounted on the disassembly plate (301), and the cleaning brush (302) contacts the inner wall of the threaded hole of the sleeve.
6. The rebar sleeve tapping device according to claim 1, characterized in that, The conveyor includes: A conveying trough (401) is fixedly installed on the machine body (1) and located below the debris drop rack (11); A conveyor belt (402) is disposed inside the conveying trough (401) and rotates to convey debris.
7. The rebar sleeve tapping device according to claim 3, characterized in that, The tapping table (102) is provided with a chip baffle (13), and the positioning groove and the chuck (104) are both located within the range of the chip baffle (13).
8. A rebar sleeve tapping device according to claim 7, characterized in that, The chip baffle (13) is provided with a blow-off pipe (14) for blowing hot air to the tapping table (102) and the chip dropper (11).
9. A rebar sleeve tapping device according to claim 6, characterized in that, A collection box (403) is fixedly installed at the discharge end of the conveying trough (401), and a scraper (404) is fixedly installed on the collection box (403). The scraper (404) is in contact with the surface of the conveyor belt (402).
10. A rebar sleeve tapping device according to claim 4, characterized in that, A drive gear (204) is rotatably mounted at the middle position of the moving platform (201), and a fixed rack (206) is fixedly mounted on the worktable (2). The drive gear (204) and the fixed rack (206) mesh with each other.