A kind of automobile pipe fitting accessory weld polishing device

Abstract

This invention relates to the field of grinding and polishing technology, specifically to a grinding and polishing device for weld seams of automotive pipe fittings. The device includes a base, a central turntable, and a digital display control panel. The base is equipped with a support intermittent rotation assembly for intermittently driving the central turntable. The outer side of the central turntable has several evenly distributed grooves centered on its rotation axis. Two pipe clamping rollers are rotatably mounted in each groove. The central turntable contains a wheel drive assembly for driving the clamping rollers to rotate synchronously in the same direction. Through the evenly distributed grooves on the outer side of the central turntable, the wheel drive assembly synchronously drives the clamping rollers in each groove, causing the pipes to rotate synchronously in the same direction. Combined with the grinding and polishing assembly, multiple pipes can be ground and polished simultaneously, further improving processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of grinding and polishing technology, and specifically to a grinding and polishing device for weld seams of automotive pipe fittings. Background Technology

[0002] Automotive pipe fittings are an indispensable part of automobile production. However, a single pipe fitting often cannot meet the requirements of use. Therefore, it is necessary to weld multiple different pipe fittings to achieve the desired results. As the automotive industry continues to increase its requirements for product quality and production efficiency, the development of efficient, precise, and highly automated welding and polishing equipment for automotive pipe fittings has become an inevitable trend.

[0003] A grinding and polishing device for welding points and weld seams of automotive pipe fittings, disclosed in CN216029861U, specifically relates to the field of automotive pipe fitting weld seam grinding technology. It includes a support frame, with a rectangular through hole in the center of the upper surface of the top plate of the support frame. A lifting mechanism is provided on one side of the upper surface of the top plate of the support frame, and a grinding mechanism is provided on one side of the lifting mechanism. The grinding mechanism is fixedly installed on the lifting mechanism. A corner mechanism is provided on the lower surface of the top plate of the support frame, and the corner mechanism includes two fixed plates.

[0004] However, current pipe polishing methods are not highly automated and can only polish one pipe at a time. Summary of the Invention

[0005] The purpose of this invention is to provide a grinding and polishing device for weld seams of automotive pipe fittings in order to solve the above-mentioned problems.

[0006] Technical solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The present invention provides a grinding and polishing device for weld seams of automotive pipe fittings, comprising a base, a central turntable and a digital display control panel. The base is provided with a support intermittent rotation assembly for intermittently driving the central turntable to rotate. The outer side of the central turntable is provided with a plurality of wheel grooves evenly distributed around its rotation axis. Two pipe clamping abutments are rotatably arranged in each wheel groove. The central turntable is provided with a wheel drive assembly for driving each pipe clamping abutment to rotate synchronously in the same direction.

[0009] The central turntable is provided with outer guide limiting plates on both sides of its rotation axis to prevent the pipe fitting from detaching in the embedded groove, and the central turntable is provided with limiting baffle structures at both ends to limit the end of the pipe fitting.

[0010] One side of the central turntable is equipped with a grinding and polishing assembly capable of simultaneously grinding and polishing pipe fittings in multiple embedded grooves. Each embedded groove corresponding to the grinding and polishing area is equipped with a pressure roller structure on one side.

[0011] The upper side of the central turntable is provided with a feeding assembly for feeding materials into the embedded wheel groove, and the lower side of the central turntable is provided with a receiving assembly.

[0012] Furthermore, the wheel drive assembly includes a central chamber located at the central axis of the central turntable. A central drive wheel is rotatably disposed within the central chamber for driving the pipe clamping wheel. A first motor is fixedly disposed within the central drive wheel for driving its rotation within the central chamber. The output terminal of the digital display control panel is electrically connected to the input terminal of the first motor.

[0013] Furthermore, the supporting intermittent rotation assembly includes side plates respectively disposed at both ends along the axial direction of the central turntable. Each side plate is fixedly mounted on the base by two or more columns. The two side plates are rotatably mounted at both ends of the central turntable along its axial direction via a rotating shaft. A grooved wheel is fixedly connected to the end of one of the rotating shafts. A dial is engaged with one side of the grooved wheel. A fixing plate is fixedly mounted on the side plate by bolts. A second motor is fixedly mounted on the fixing plate. The output end of the second motor is connected to the dial. The output end of the digital display control panel is electrically connected to the input end of the second motor.

[0014] Furthermore, the receiving assembly includes an inclined receiving plate, the bottom side of which is fixedly mounted on a base. Two parallel guide rails are fixedly mounted on the bottom side of the receiving plate, each guide rail having a guide groove. A lead screw is rotatably mounted in each guide groove, one end of which is driven to rotate by a third motor fixedly mounted at the end of the guide rail. A slider is slidably mounted in the guide groove, and a threaded hole is threaded through the slider to engage with the lead screw. One end of the slider protrudes from the upper surface of the receiving plate. The output of the digital display control panel is electrically connected to the input of the third motor.

[0015] Furthermore, the grinding and polishing assembly includes a support frame, on which three or more first electric telescopic rods are fixedly mounted. The push rod head of the first electric telescopic rod faces the central turntable and is connected to a connecting seat through a pressure sensor. A fourth motor is fixedly mounted on the connecting seat. A grinding and polishing wheel is fixedly connected to the output shaft end of the fourth motor. The output end of the digital display control panel is electrically connected to the input end of the fourth motor, and the output end of the pressure sensor is electrically connected to the input end of the digital display control panel.

[0016] Furthermore, the pressure roller structure includes a third electric telescopic rod fixedly mounted on the side plate. A support block is fixedly connected to the push rod head of the third electric telescopic rod. A pressure roller is rotatably connected to one side of the support block via a connecting shaft. The output end of the digital display control panel is electrically connected to the input end of the third electric telescopic rod.

[0017] Furthermore, the limiting baffle structure includes a retaining ring disposed opposite to the edge of the end of the central turntable. A second electric telescopic rod for driving the retaining ring to move axially along the central turntable is fixedly disposed on the side plate. An upper stop rod is fixedly disposed on the upper side of the retaining ring, and a side stop rod is disposed on one side of the upper end of the upper stop rod. A lower stop rod is fixedly connected to the lower side of the retaining ring. The output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0018] Furthermore, the feeding assembly includes a conveyor disposed between two side stops, and also includes two parallel feeding plates disposed below the conveyor. Each feeding plate has a top plate fixedly disposed on its upper side. The base is rectangular in shape, and uprights are fixedly disposed at the four corners of the upper side of the base. The tops of the uprights are fixedly connected to each other by a crossbeam. The top plate is fixedly disposed on the crossbeam. The output end of the digital display control panel is electrically connected to the input end of the conveyor.

[0019] Furthermore, the outer guide limiting plate is circular in shape and is sleeved on the outer side of the end of the central turntable. The upper and lower sides of the outer guide limiting plate have notches. The notches of the outer guide limiting plate are respectively fixed to the side plates by brackets. The outer guide limiting plate has an opening groove for the pressure roller to pass through.

[0020] Furthermore, each of the pipe fitting clamping rollers is provided with an anti-slip protrusion on its outer side, and the anti-slip protrusion is made of rubber material.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. Multiple embedded wheel grooves are evenly distributed on the outer side of the central turntable. The wheel drive assembly can synchronously drive the clamping wheel of the pipe fitting in each embedded wheel groove, causing the pipe fitting to rotate synchronously in the same direction. With the grinding and polishing assembly, multiple pipe fittings can be ground and polished at the same time, further improving processing efficiency.

[0023] 2. Under the control of the digital display control panel, the conveyor in the feeding assembly precisely feeds the pipe fittings into the embedded wheel groove. The intermittent rotation component supports the central turntable, which rotates intermittently, sequentially sending the pipe fittings to the grinding and polishing station. After grinding, the conveyor rotates back to the receiving position, where the receiving component automatically receives the fittings. The entire process is smooth and seamless, greatly improving processing efficiency, reducing manual intervention and time loss, and meeting the needs of large-scale production.

[0024] 3. The external guide limiting plate provides precise guidance for the pipe fitting within the embedded wheel groove and prevents it from coming out. The limiting baffle structure limits the pipe fitting end from multiple directions—axially, vertically, and laterally—ensuring the pipe fitting's positional stability throughout the processing, laying the foundation for precise grinding and polishing. The pressure roller structure is flexibly adjustable according to the pipe fitting's diameter, pressing the pipe fitting firmly to prevent displacement, shaking, or jumping during grinding, allowing the grinding and polishing wheel to precisely act on the weld seam, improving grinding accuracy and quality.

[0025] 4. The pressure sensor in the grinding and polishing assembly monitors the grinding pressure in real time and feeds the data back to the digital display control panel. The digital display control panel then automatically adjusts the extension and retraction of the first electric telescopic rod to ensure that the grinding and polishing pressure is always appropriate. This avoids excessive wear or insufficient grinding of the pipe fittings due to improper pressure, ensures uniform removal or polishing of metal at the weld, and improves the overall grinding and polishing quality of the pipe fittings. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0027] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0028] Figure 2 This is the present invention. Figure 1 A schematic diagram of the left-side view structure;

[0029] Figure 3 This is the present invention. Figure 1 A schematic diagram of the three-dimensional structure;

[0030] Figure 4 This is the present invention. Figure 3 A magnified schematic diagram of the structure at point B;

[0031] Figure 5 This is the present invention. Figure 1 A schematic diagram of the AA cross-sectional structure;

[0032] Figure 6 This is the present invention. Figure 1 A schematic diagram of the second-direction three-dimensional structure.

[0033] The reference numerals in the attached drawings are explained as follows: 1. Base; 101. Upright post; 2. Central turntable; 201. Embedded wheel groove; 202. Central chamber; 3. Wheel drive assembly; 301. First motor; 302. Central drive wheel; 303. Pipe clamping abutment wheel; 304. Anti-slip convex strip; 4. Outer guide limit plate; 401. Notch; 402. Bracket; 5. Support intermittent rotation assembly; 501. Side plate; 502. Upright post; 503. Fixing plate; 504. Second motor; 505. Dial; 506. Grooved wheel; 6. Receiving assembly; 601. Receiving plate; 602. Guide rail; 603. Third motor; 604. Guide groove; 605. Lead screw; 6 06. Slider; 7. Grinding and polishing assembly; 701. Support frame; 702. First electric telescopic rod; 703. Pressure sensor; 704. Connecting seat; 705. Grinding and polishing wheel; 706. Fourth motor; 8. Limiting baffle structure; 801. Retaining ring; 802. Second electric telescopic rod; 803. Upper stop bar; 804. Side stop bar; 805. Lower stop bar; 9. Pressure roller structure; 901. Third electric telescopic rod; 902. Support block; 903. Connecting shaft; 904. Pressure roller; 10. Feeding assembly; 1001. Feeding plate; 1002. Top plate; 1003. Conveyor; 1004. Crossbeam; 11. Digital display control panel. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0035] See Figures 1-6As shown, this invention provides a grinding and polishing device for weld seams of automotive pipe fittings, including a base 1, a central turntable 2, and a digital display control panel 11. The base 1 is equipped with a support intermittent rotation assembly 5 for intermittently driving the central turntable 2. The outer side of the central turntable 2 has several evenly distributed wheel grooves 201 centered on its rotation axis. Two pipe fitting clamping abutments 303 are rotatably disposed in each wheel groove 201. The central turntable 2 is equipped with a wheel drive assembly 3 for driving each pipe fitting clamping abutment 303 to rotate synchronously in the same direction. The central turntable 2 rotates along its axis... The outer sides of both ends of the moving axis are provided with external guide limiting plates 4 for preventing the pipe fittings from detaching in the embedded wheel grooves 201. The two ends of the central turntable 2 are provided with limiting baffle structures 8 for limiting the ends of the pipe fittings. A grinding and polishing assembly 7 is provided on one side of the central turntable 2, which can grind and polish multiple pipe fittings in the embedded wheel grooves 201 at the same time. A pressure roller structure 9 is provided on one side of each embedded wheel groove 201 corresponding to the grinding and polishing point. A feeding assembly 10 is provided on the upper side of the central turntable 2 for feeding materials into the embedded wheel grooves 201. A receiving assembly 6 is provided on the bottom side of the central turntable 2.

[0036] See instruction manual attached Figure 5 and Figure 6 As shown, the wheel drive assembly 3 includes a central chamber 202 located at the central axis of the central turntable 2, providing installation and operating space. A central drive wheel 302 is rotatably mounted within the central chamber 202 for abutting against and driving the pipe clamping abutment wheels 303. A first motor 301 is fixedly mounted within the central drive wheel 302 to drive its rotation within the central chamber 202. Each pipe clamping abutment wheel 303 has an anti-slip protrusion 304 on its outer side, enhancing the friction between the abutment wheel 303 and the pipe, effectively preventing slippage during processing, thus ensuring the stability and processing accuracy of the pipe during grinding and polishing. The anti-slip protrusion 304 is made of rubber. The output of the digital display control panel 11 is electrically connected to the input of the first motor 301. The wheel drive assembly 3 can synchronously drive the rotation of each pipe, thereby cooperating with the grinding and polishing assembly 7 to simultaneously grind and polish each pipe.

[0037] See instruction manual attached Figure 2 and Figure 4As shown, the supporting intermittent rotation assembly 5 includes side plates 501 respectively disposed at both ends along the axial direction of the central turntable 2. Each side plate 501 is fixedly mounted on the base 1 by two or more columns 502. The two side plates 501 are rotatably mounted on both ends of the central turntable 2 along its axial direction via a rotating shaft. A grooved wheel 506 is fixedly connected to the end of one of the rotating shafts. A dial 505 is engaged on one side of the grooved wheel 506. A fixing plate 503 is fixedly mounted on the side plate 501 by bolts. A second motor 504 is fixedly mounted on the fixing plate 503. The output end of the second motor 504 is connected to the dial 505. The output end of the digital display control panel 11 is electrically connected to the input end of the second motor 504. Through the above-mentioned specific structural design, when the second motor 504 starts, the output shaft of the second motor 504 drives the dial 505 to start rotating. During the rotation, the dial 505 will periodically engage and disengage with the grooved wheel 506, thereby realizing the intermittent rotation of the grooved wheel 506. Since the grooved wheel 506 is connected to the rotating shaft of the central turntable 2, the intermittent rotation of the grooved wheel 506 will drive the central turntable 2 to rotate intermittently, thereby accurately conveying the pipes in different insert grooves 201 to the grinding and polishing station and other processing stations in sequence.

[0038] See instruction manual attached Figure 2 and Figure 5 As shown, the receiving assembly 6 includes an inclined receiving plate 601, which facilitates the natural sliding of pipe fittings under gravity, providing a convenient channel for pipe fitting collection. The bottom side of the receiving plate 601 is fixedly mounted on the base 1. Two parallel guide rails 602 are fixedly mounted on the bottom side of the receiving plate 601. Each guide rail 602 has a guide groove 604, and a lead screw 605 is rotatably mounted in each guide groove 604. One end of the lead screw 605 is driven to rotate by a third motor 603 fixedly mounted at the end of the guide rail 602. A slider 606 is slidably mounted in the guide groove 604. A threaded hole is opened through the slider 606 to connect with the lead screw 605. One end of the slider 606 protrudes from the upper surface of the receiving plate 601. The output end of the digital display control panel 11 is electrically connected to the input end of the third motor 603.

[0039] In practical applications, before the pipe is polished, the slider 606 is in its highest initial position under the control of the digital display control panel 11, waiting to receive the pipe. At this time, the third motor 603 is stationary, the lead screw 605 does not rotate, and the slider 606 remains relatively stationary. When the central turntable 2 rotates the polished pipe to the receiving position, since the receiving plate 601 is inclined, the falling pipe will slide naturally along the surface of the receiving plate 601 under the action of gravity and will eventually be collected on the receiving plate 601. When one end of the slider 606 protrudes from the upper surface of the receiving plate 601 and contacts the pipe, it will smoothly receive the pipe from the groove 201.

[0040] See instruction manual attached Figure 2 and Figure 3 As shown, the grinding and polishing assembly 7 includes a support frame 701, on which three or more first electric telescopic rods 702 are fixedly mounted. The push rod ends of the first electric telescopic rods 702 face the central turntable 2 and are connected to a connecting seat 704 via a pressure sensor 703. A fourth motor 706 is fixedly mounted on the connecting seat 704. A grinding and polishing wheel 705 is fixedly connected to the output shaft end of the fourth motor 706. The output end of the digital display control panel 11 is electrically connected to the input end of the fourth motor 706, and the output end of the pressure sensor 703 is electrically connected to the input end of the digital display control panel 11. Through the above specific structural design, before performing grinding and polishing operations, the operator first sets the initial parameters of the fourth motor 706, such as speed and direction, through the digital display control panel 11. At the same time, according to the material, shape, and grinding and polishing requirements of the pipe to be processed, a suitable grinding pressure range is preset. At this time, the first electric telescopic rods 702 are in the initial position, and a certain safe distance is maintained between the grinding and polishing wheel 705 and the pipe. When the central turntable 2 rotates the pipe to be processed to the grinding and polishing station, the digital display control panel 11 sends a command to the first electric telescopic rod 702, causing its push rod head to slowly extend, driving the connecting seat 704, the fourth motor 706, and the grinding and polishing wheel 705 to gradually approach the pipe. During this process, the pressure sensor 703 monitors the change in distance between the grinding and polishing wheel 705 and the pipe in real time. When the two are about to make contact, the extension speed of the first electric telescopic rod 702 will automatically slow down to avoid damage to the pipe due to excessive speed. The grinding coarseness of each grinding and polishing wheel 705 is different. After the grinding and polishing wheel 705 contacts the pipe, the fourth motor 706 starts operating according to preset parameters, driving the grinding and polishing wheel 705 to rotate at high speed and begin the grinding and polishing operation on the pipe. During the grinding and polishing process, the pressure sensor 703 continuously monitors the pressure between the grinding and polishing wheel 705 and the pipe in real time and feeds the pressure data back to the digital display control panel 11 in real time. If the pressure exceeds the preset range, the digital display control panel 11 will automatically adjust the extension of the first electric telescopic rod 702 to ensure that the grinding and polishing pressure is always maintained within a suitable range. For example, when the pressure is too high, the digital display control panel 11 will instruct the first electric telescopic rod 702 to retract appropriately, reducing the pressure of the grinding and polishing wheel 705 on the pipe; when the pressure is too low, it will instruct the first electric telescopic rod 702 to extend further, increasing the grinding and polishing pressure. After the grinding and polishing operation of the pipe is completed, the digital display control panel 11 will send an instruction to the first electric telescopic rod 702 to retract its push rod head, driving the grinding and polishing wheel 705 to gradually move away from the pipe and return to its initial position. At the same time, the fourth motor 706 stops operating, waiting for the instruction for the next grinding and polishing task.

[0041] See instruction manual attached Figure 3 and Figure 6 As shown, the pressure roller structure 9 includes a third electric telescopic rod 901 fixedly mounted on the side plate 501. A support block 902 is fixedly connected to the push rod head of the third electric telescopic rod 901. A pressure roller 904 is rotatably connected to one side of the support block 902 via a connecting shaft 903. The output end of the digital display control panel 11 is electrically connected to the input end of the third electric telescopic rod 901. In practical applications, the third electric telescopic rod 901 is fixed to the side plate 501 and its operation is controlled by the digital display control panel 11. When the pipe is transported to the grinding and polishing station, the digital display control panel 11 sends a command to the third electric telescopic rod 901, causing its push rod head to extend forward. The support block 902 connected to the push rod head drives the pressure roller 904 closer to the pipe, applying a certain pressure to the surface of the pipe. This pressure can firmly press the pipe against the pipe clamping abutment roller 303, preventing the pipe from shifting, shaking, or jumping due to the force of the grinding and polishing wheel 705 during the grinding and polishing process. By stabilizing the position of the pipe fittings, the grinding and polishing operations are ensured to be performed in precise locations, improving the accuracy and quality of the grinding and polishing. Furthermore, since the pressure roller 904 is rotatably connected to the support block 902 via the connecting shaft 903, the pressure roller 904 can flexibly adapt to pipe fittings of different diameters. When dealing with pipe fittings with larger diameters, the third electric telescopic rod 901 extends a longer distance, allowing the pressure roller 904 to fully contact the pipe fitting surface and apply appropriate pressure; when processing pipe fittings with smaller diameters, the third electric telescopic rod 901 shortens its extension length accordingly, still ensuring that the pressure roller 904 effectively presses the pipe fitting. This adjustability makes the pressure roller structure 9 suitable for processing various specifications of automotive pipe fittings, enhancing the versatility and applicability of the device.

[0042] In addition, during the grinding and polishing process, the grinding and polishing wheel 705 rotates at high speed to grind and polish the surface of the pipe fitting. The pressure applied by the pressure roller 904 increases the friction between the pipe fitting and the pipe fitting clamping roller 303, making the pipe fitting more stable during rotation and less prone to slippage. The grinding and polishing wheel 705 can more effectively act on the weld seam of the pipe fitting, improving the efficiency of grinding and polishing, ensuring that the metal at the weld seam can be removed or polished evenly, reducing problems such as uneven grinding and missed grinding caused by unstable rotation of the pipe fitting, thereby improving the overall grinding and polishing quality of the pipe fitting.

[0043] The limiting baffle structure 8 includes a retaining ring 801 disposed opposite to the end edge of the central turntable 2. A second electric telescopic rod 802 for driving the retaining ring 801 to move axially along the central turntable 2 is fixedly disposed on the side plate 501. An upper stop rod 803 is fixedly disposed on the upper side of the retaining ring 801. A side stop rod 804 is disposed on one side of the upper end of the upper stop rod 803. A lower stop rod 805 is fixedly connected to the lower side of the retaining ring 801. The output end of the digital display control panel 11 is electrically connected to the input end of the second electric telescopic rod 802.

[0044] The feeding assembly 10 includes a conveyor 1003 disposed between two side stops 804. The feeding assembly 10 also includes two parallel feeding plates 1001. The feeding plates 1001 are disposed below the conveyor 1003. A top plate 1002 is fixedly disposed on the upper side of each feeding plate 1001. The base 1 is rectangular in shape. Uprights 101 are fixedly disposed at the four corners of the upper side of the base 1. The tops of the uprights 101 are fixedly connected to each other by a crossbeam 1004. The top plate 1002 is fixedly disposed on the crossbeam 1004. The output end of the digital display control panel 11 is electrically connected to the input end of the conveyor 1003.

[0045] See instruction manual attached Figure 6 As shown, the outer guide limiting plate 4 is circular in shape and is fitted onto the outer side of the end of the central turntable 2. Notches 401 are provided on the upper and lower sides of the outer guide limiting plate 4. The notches 401 of the outer guide limiting plate 4 are fixed to the side plate 501 by brackets 402. An opening groove for the pressure roller 904 to pass through is provided on the outer guide limiting plate 4. Through this specific structural design, the outer guide limiting plate 4 is circularly fitted onto the outer side of the end of the central turntable 2, and its shape is adapted to the central turntable 2, providing a precise guiding path for the placement and rotation of the pipe fitting within the wheel groove 201. When the pipe fitting is placed in the wheel groove 201 of the central turntable 2, the outer guide limiting plate 4 can guide the pipe fitting into accurate position, ensuring that the pipe fitting always rotates along the predetermined circumferential trajectory during subsequent processing, avoiding any impact on the grinding and polishing effect due to positional deviation. Meanwhile, the outer guide limiting plate 4 effectively prevents the pipe fitting from coming out of the groove 201 due to centrifugal force and other factors during high-speed rotation, ensuring the safety and continuity of the processing. Its structural design surrounding the end of the central turntable 2 acts like a protective barrier, firmly restraining the pipe fitting within the specified range of motion, reducing the risk of equipment damage or safety accidents caused by accidental pipe fitting detachment.

[0046] Working principle and technical effects of the present invention:

[0047] In use, the conveyor 1003 in the feeding assembly 10 is started by the digital display control panel 11 to transport the pipe fitting between the two side stops 804. The feed plate 1001 and the top plate 1002 assist in guiding the pipe fitting, so that the pipe fitting can smoothly enter the wheel groove 201.

[0048] The intermittent rotating component 5 is supported. The digital display control panel 11 controls the second motor 504 to start, which drives the dial 505 to rotate. The dial 505 meshes with the grooved wheel 506. The grooved wheel 506 has eight slots. When the dial 505 rotates one revolution, the grooved wheel 506 rotates forty-five degrees, so that the two ends of the central turntable 2 along its axial direction rotate intermittently on the side plate 501 through the rotating shaft, realizing the switching of the working position of the pipe fittings in different embedded grooves 201, so as to carry out subsequent grinding, polishing and unloading operations.

[0049] The outer guide limit plate 4 is sleeved on the outer side of the end of the central turntable 2. Its notch 401 is fixed to the side plate 501 by the bracket 402, which plays a role in preventing the pipe from getting off in the embedded groove 201. The second electric telescopic rod 802 in the limit baffle structure 8 is controlled by the digital display control panel 11 to drive the retaining ring 801 to move axially along the central turntable 2. The upper stop rod 803, the side stop rod 804 and the lower stop rod 805 together limit the end of the pipe to ensure that the position of the pipe is stable during the processing. In addition, the limit baffle structure 8 also has the function of adjusting the grinding position to correspond with the grinding and polishing component 7.

[0050] The first motor 301 in the control wheel drive assembly 3 of the digital display control panel 11 starts, driving the central drive wheel 302 to rotate in the central chamber 202, which in turn drives the clamping rollers 303 of each pipe fitting to rotate synchronously in the same direction. The anti-slip protrusions 304 on the outside of the clamping rollers 303 are made of rubber material to increase the friction between the rollers and the pipe fittings, and to stably drive the pipe fittings to rotate.

[0051] The digital control panel 11 controls the first electric telescopic rod 702 in the grinding and polishing assembly 7. The push rod head of the first electric telescopic rod 702 moves towards the central turntable 2, driving the fourth motor 706 and the grinding and polishing wheel 705 closer to the pipe through the connecting seat 704 connected to the pressure sensor 703. The pressure sensor 703 monitors the grinding pressure in real time and feeds the data back to the digital control panel 11 for adjustment of the grinding intensity. The fourth motor 706 drives the grinding and polishing wheel 705 to rotate, grinding and polishing the pipe.

[0052] The pressure roller structure 9 on one side of each embedded groove 201 corresponding to the grinding and polishing area works. The digital display control panel 11 controls the third electric telescopic rod 901 to push the support block 902 and the pressure roller 904 closer to the pipe. The pressure roller 904 plays a certain role in pressing and stabilizing the pipe to ensure that the pipe will not shake during the grinding and polishing process.

[0053] After the pipe fittings are polished, the central turntable 2 rotates to the receiving position. The third motor 603 in the receiving assembly 6 drives the lead screw 605 to rotate in the guide groove 604, causing the slider 606 to slide in the guide groove 604. One end of the slider 606 protrudes from the upper surface of the receiving plate 601, pushing the polished pipe fittings out of the embedded wheel groove 201. The pipe fittings slide down the inclined receiving plate 601 and are collected.

[0054] The entire device is controlled by a digital display control panel 11, which controls the actions of each component to achieve automated grinding and polishing of weld seams in automotive pipe fittings, thereby improving processing efficiency and quality.

[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for grinding and polishing weld seams of automotive pipe fittings, characterized in that: The device includes a base (1), a central turntable (2), and a digital display control panel (11). The base (1) is provided with a support intermittent rotation assembly (5) for intermittently driving the central turntable (2). The outer side of the central turntable (2) is provided with several wheel grooves (201) evenly distributed around its rotation axis. Two pipe clamping abutments (303) are rotatably arranged in each wheel groove (201). The central turntable (2) is provided with a wheel drive assembly (3) for driving each pipe clamping abutment (303) to rotate synchronously in the same direction. The central turntable (2) is provided with outer guide limiting plates (4) on both sides of its rotation axis to prevent the pipe fitting from detaching in the wheel groove (201), and the central turntable (2) is provided with limiting baffle structures (8) at both ends to limit the end of the pipe fitting. The central turntable (2) is provided with a grinding and polishing assembly (7) on one side, which can simultaneously grind and polish the pipes in multiple embedded wheel grooves (201). Each embedded wheel groove (201) corresponding to the grinding and polishing point is provided with a pressure roller structure (9) on one side. The upper side of the central turntable (2) is provided with a feeding assembly (10) for feeding material into the embedded wheel groove (201), and the lower side of the central turntable (2) is provided with a receiving assembly (6). The supporting intermittent rotation assembly (5) includes side plates (501) respectively disposed at both ends of the central turntable (2) along the axial direction. Each side plate (501) is fixedly disposed on the base (1) by two or more columns (502). The central turntable (2) is rotatably disposed on the two side plates (501) at both ends of its axial direction by a rotating shaft. A grooved wheel (506) is fixedly connected to the end of one of the rotating shafts. A dial (505) is engaged on one side of the grooved wheel (506). A fixing plate (503) is fixedly disposed on the side plate (501) by bolts. A second motor (504) is fixedly disposed on the fixing plate (503). The output end of the second motor (504) is connected to the dial (505). The output end of the digital display control panel (11) is electrically connected to the input end of the second motor (504). The receiving assembly (6) includes a receiving plate (601) arranged at an inclination. The bottom side of the receiving plate (601) is fixedly mounted on the base (1). Two parallel guide rails (602) are fixedly mounted on the bottom side of the receiving plate (601). Each guide rail (602) has a guide groove (604) in it. Each guide groove (604) has a lead screw (605) rotatably mounted in it. One end of the lead screw (605) is driven to rotate by a third motor (603) fixedly mounted at the end of the guide rail (602). A slider (606) is slidably mounted in the guide groove (604). A threaded hole is opened through the slider (606) to be threadedly connected to the lead screw (605). One end of the slider (606) protrudes from the upper surface of the receiving plate (601). The output end of the digital display control panel (11) is electrically connected to the input end of the third motor (603). The pressure roller structure (9) includes a third electric telescopic rod (901) fixedly mounted on the side plate (501). The push rod head of the third electric telescopic rod (901) is fixedly connected to a support block (902). One side of the support block (902) is rotatably connected to a pressure roller (904) via a connecting shaft (903). The output end of the digital display control panel (11) is electrically connected to the input end of the third electric telescopic rod (901). The limiting baffle structure (8) includes a retaining ring (801) disposed opposite to the end edge of the central turntable (2). A second electric telescopic rod (802) for driving the retaining ring (801) to move axially along the central turntable (2) is fixedly disposed on the side plate (501). An upper stop rod (803) is fixedly disposed on the upper side of the retaining ring (801). A side stop rod (804) is disposed on one side of the upper end of the upper stop rod (803). A lower stop rod (805) is fixedly connected to the lower side of the retaining ring (801). The output end of the digital display control panel (11) is electrically connected to the input end of the second electric telescopic rod (802). The feeding assembly (10) includes a conveyor (1003) disposed between two side stops (804). The feeding assembly (10) also includes two parallel feeding plates (1001). The feeding plates (1001) are disposed below the conveyor (1003). Each feeding plate (1001) has a top plate (1002) fixedly disposed on its upper side. The base (1) is rectangular in shape. The four corners of the upper side of the base (1) are fixedly disposed with uprights (101). The tops of the uprights (101) are fixedly connected to each other with crossbeams (1004). The top plate (1002) is fixedly disposed on the crossbeams (1004). The output end of the digital display control panel (11) is electrically connected to the input end of the conveyor (1003). The outer guide limiting plate (4) is circular in shape and is sleeved on the outer side of the end of the central turntable (2). The upper and lower sides of the outer guide limiting plate (4) have notches (401). The notches (401) of the outer guide limiting plate (4) are fixed on the side plate (501) by brackets (402). The outer guide limiting plate (4) has an opening groove for the pressure roller (904) to pass through. The grinding and polishing assembly (7) includes a support frame (701), on which three or more first electric telescopic rods (702) are fixedly installed. The push rod head of the first electric telescopic rod (702) faces the central turntable (2) and is connected to a connecting seat (704) through a pressure sensor (703). A fourth motor (706) is fixedly installed on the connecting seat (704). A grinding and polishing wheel (705) is fixedly connected to the output shaft end of the fourth motor (706). The output end of the digital display control panel (11) is electrically connected to the input end of the fourth motor (706), and the output end of the pressure sensor (703) is electrically connected to the input end of the digital display control panel (11).

2. The grinding and polishing device for weld seams of automotive pipe fittings according to claim 1, characterized in that: The wheel drive assembly (3) includes a central chamber (202) located on the central axis of the central turntable (2). A central drive wheel (302) is rotatably disposed in the central chamber (202) for abutting against the pipe clamping abutment wheel (303). A first motor (301) is fixedly disposed in the central drive wheel (302) for driving it to rotate in the central chamber (202). The output end of the digital display control panel (11) is electrically connected to the input end of the first motor (301).

3. The grinding and polishing device for weld seams of automotive pipe fittings according to claim 2, characterized in that: Each of the aforementioned pipe fitting clamping rollers (303) is provided with an anti-slip ridge (304) on its outer side, the anti-slip ridge (304) being made of rubber material.

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