Automobile pipe fitting part welding seam grinding and polishing device

Abstract

The invention relates to the technical field of grinding and polishing, in particular to an automobile pipe fitting part welding seam grinding and polishing device which comprises a base, a center rotary table and a digital display control panel. A plurality of wheel embedding grooves which are evenly distributed with the rotating axis of the center rotary table as the center are formed in the outer side of the center rotary table, two pipe clamping abutting wheels are rotationally arranged in each wheel embedding groove, and a wheel driving assembly used for driving the pipe clamping abutting wheels to synchronously rotate in the same direction is arranged in the center rotary table. The multiple wheel embedding grooves are evenly distributed in the outer side of the center rotary table, the wheel driving assembly can synchronously drive the pipe fitting clamping abutting wheels in the wheel embedding grooves, the pipe fittings are driven to synchronously rotate in the same direction, the multiple pipe fittings can be ground and polished at the same time in cooperation with the grinding and polishing assembly, and the machining efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding and polishing, and in particular to a device for grinding and polishing the weld of an automobile pipe fitting. Background Art

[0002] Automotive pipe fittings are an indispensable part of automobile production, but one pipe fitting often cannot meet the requirements of use. Therefore, multiple different pipe fittings need to be welded to achieve the purpose of use. With the continuous improvement of the automotive industry's requirements for product quality and production efficiency, the development of efficient, precise and highly automated automotive pipe fittings weld grinding and polishing equipment has become an inevitable trend.

[0003] A welding spot and weld seam grinding and polishing device for welding automobile pipe fittings with publication number CN216029861U specifically relates to the technical field of automobile pipe fitting weld seam grinding, including a support frame, a rectangular through hole is opened in the middle of the upper end surface of the top plate of the support frame, a lifting mechanism is provided on one side of the upper end surface of the top plate of the support frame, 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 end surface of the top plate of the support frame, the corner mechanism includes a fixed plate, and the number of the fixed plates is two.

[0004] However, the current pipe grinding has the following problems: firstly, the degree of automation is not high; secondly, only one pipe can be ground and polished at a time. Summary of the invention

[0005] The purpose of the present invention is to provide a welding seam grinding and polishing device for automobile pipe fittings in order to solve the above problems.

[0006] Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a welding seam grinding and polishing device for automobile pipe fittings, comprising a base, a central turntable and a digital display control panel, wherein the base is provided with a supporting intermittent rotating assembly for intermittently driving and rotating the central turntable, the outer side of the central turntable is provided with a plurality of wheel grooves evenly distributed with its rotation axis as the center, each wheel groove is provided with two pipe clamping wheels rotatably, and the central turntable is provided with a wheel driving assembly for driving each pipe clamping wheel to rotate synchronously in the same direction; The central turntable is provided with outer guide limit plates for preventing the pipe from slipping out of the wheel groove at both ends of the central turntable along the outer sides of the rotation axis thereof, and limit baffle structures for limiting the ends of the pipe are provided at both ends of the central turntable; A grinding and polishing assembly capable of simultaneously grinding and polishing pipes in a plurality of wheel grooves is provided on one side of the central turntable, and a pressure wheel structure is provided on one side of each wheel groove corresponding to the grinding and polishing position; A material loading assembly for loading materials into the insert wheel groove is arranged on the upper side of the central turntable, and a material receiving assembly is arranged on the bottom side of the central turntable.

[0008] Furthermore, the wheel drive assembly includes a central chamber opened at the central axis of the central turntable, a central drive wheel for abutting and driving the pipe clamping wheel is rotatably arranged in the central chamber, a first motor for driving it to rotate in the central chamber is fixedly arranged in the central drive wheel, and the output end of the digital display control panel is electrically connected to the input end of the first motor.

[0009] Furthermore, the supporting intermittent rotating assembly includes side plates respectively arranged at both ends along the axial direction of the center turntable, each of the side plates is fixed on the base by more than two columns, and the center turntable is rotatably arranged on two side plates at both ends along its axial direction by a rotating shaft, one end of the rotating shaft is fixedly connected to a groove wheel, and a dial is meshedly arranged on one side of the groove wheel, and a fixing plate is fixedly arranged on the side plate by bolts, and a second motor is fixedly arranged on the fixing plate, the output end of the second motor is connected to the dial, and the output end of the digital display control panel is electrically connected to the input end of the second motor.

[0010] Furthermore, the material receiving assembly includes a material receiving plate that is arranged at an angle, the bottom side of the material receiving plate is fixedly arranged on the base, two parallel guide rails are fixedly arranged on the bottom side of the material receiving plate, a guide groove is opened in each guide rail, a lead screw is rotatably arranged in each guide groove, one end of the lead screw is driven to rotate by a third motor fixedly arranged at the end of the guide rail, a slider is slidably arranged in the guide groove, a threaded hole is penetrated on the slider and is threadedly connected to the lead screw, one end of the slider protrudes from the upper surface of the material receiving plate, and the output end of the digital display control panel is electrically connected to the input end of the third motor.

[0011] Furthermore, the grinding and polishing assembly includes a support frame, on which more than three first electric telescopic rods are fixedly arranged, the push rod head ends of the first electric telescopic rods face the central turntable and are connected to a connecting seat through a pressure sensor, a fourth motor is fixedly arranged on the connecting seat, and 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.

[0012] Furthermore, the pressure wheel structure includes a third electric telescopic rod fixedly arranged on the side panel, the push rod head end of the third electric telescopic rod is fixedly connected to a support block, one side of the support block is rotatably connected to the pressure wheel via a connecting shaft, and the output end of the digital display control panel is electrically connected to the input end of the third electric telescopic rod.

[0013] Furthermore, the limit baffle structure includes a baffle ring arranged opposite to the end edge of the center turntable, a second electric telescopic rod for driving the baffle ring to move axially along the center turntable is fixedly arranged on the side plate, an upper baffle rod is fixedly arranged on the upper side of the baffle ring, a side baffle rod is arranged on one side of the upper end of the upper baffle rod, a lower baffle rod is fixedly connected to the lower side of the baffle ring, and the output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0014] Furthermore, the loading assembly includes a conveyor arranged between two side guard bars, and the loading assembly also includes two parallel distributed material guide plates, the material guide plates are arranged below the conveyor, a top plate is fixedly arranged on the upper side of each of the material guide plates, the base is in the shape of a rectangular parallelepiped, vertical poles are fixedly arranged at the four corners of the upper side of the base, the top ends of the vertical poles are fixedly connected to each other with cross beams, the top plate is fixedly arranged on the cross beam, and the output end of the digital display control panel is electrically connected to the input end of the conveyor.

[0015] Furthermore, the outer guide limit plate is in the shape of a circular ring and is sleeved on the outer side of the end of the center turntable. Notches are provided on the upper and lower sides of the outer guide limit plate. The notches of the outer guide limit plate are fixed to the side plates by brackets respectively. An open groove for passing the pressure wheel is provided on the outer guide limit plate.

[0016] Furthermore, each pipe clamping wheel is provided with an anti-skid convex strip on the outer side, and the anti-skid convex strip is made of rubber material.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the evenly distributed multiple wheel grooves on the outside of the center turntable, the wheel drive assembly can synchronously drive the pipe clamping wheels in each wheel groove, driving the pipes to rotate synchronously in the same direction. In conjunction with the grinding and polishing assembly, multiple pipes can be polished at the same time, further improving the processing efficiency; 2. Under the control of the digital display control panel, the conveyor in the feeding component accurately transports the pipe fittings to the wheel groove, supports the intermittent rotating component to make the central turntable rotate intermittently, and sends the pipe fittings to the grinding and polishing station in turn. After grinding, it rotates to the receiving position, and the receiving component automatically receives the material. The whole process is coherent and smooth, which greatly improves the processing efficiency, reduces manual intervention and time loss, and meets the needs of large-scale production; 3. The outer guide limit plate provides precise guidance for the pipe in the wheel groove and prevents it from slipping out. The limit baffle structure limits the end of the pipe from multiple directions, such as axial, top and bottom, and side, to ensure the stability of the position of the pipe during the whole processing process, laying the foundation for precise grinding and polishing. The pressure wheel structure can be flexibly adjusted according to the pipe diameter to press the pipe to prevent it from displacement, shaking or jumping during grinding, so that the grinding and polishing wheel can accurately act on the weld, improving the grinding accuracy and quality; 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 control panel. The digital control panel automatically adjusts the extension amount of the first electric telescopic rod accordingly to ensure that the grinding and polishing pressure is always appropriate, avoid excessive wear or insufficient grinding of the pipe fittings due to improper pressure, ensure uniform removal or polishing of metal at the weld, and improve the overall grinding and polishing quality of the pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a main structural schematic diagram of the present invention; Figure 2 The present invention Figure 1 Schematic diagram of the left view structure; Figure 3 The present invention Figure 1 Schematic diagram of the three-dimensional structure; Figure 4 The present invention Figure 3 A schematic diagram of the local enlarged structure at B; Figure 5 The present invention Figure 1 AA cross-sectional structural diagram; Figure 6 The present invention Figure 1 A schematic diagram of the three-dimensional structure in the second direction.

[0020] The accompanying drawings are described as follows: 1. base; 101. upright pole; 2. center turntable; 201. wheel groove; 202. center chamber; 3. wheel drive assembly; 301. first motor; 302. center drive wheel; 303. pipe clamping wheel; 304. anti-slip convex strip; 4. outer guide limit plate; 401. notch; 402. bracket; 5. support intermittent rotation assembly; 501. side plate; 502. column; 503. fixing plate; 504. second motor; 505. dial; 506. groove wheel; 6. material receiving assembly; 601. material receiving plate; 602. guide rail; 603. third motor; 604. guide groove; 605. lead screw; 606. 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. Limit baffle structure; 801. Baffle ring; 802. Second electric telescopic rod; 803. Upper baffle; 804. Side baffle; 805. Lower baffle; 9. Pressing wheel structure; 901. Third electric telescopic rod; 902. Support block; 903. Connecting shaft; 904. Pressing wheel; 10. Feeding assembly; 1001. Feeding plate; 1002. Top plate; 1003. Conveyor; 1004. Crossbeam; 11. Digital display control panel. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 6As shown, the present invention provides a welding seam grinding and polishing device for automobile pipe fittings, including a base 1, a central turntable 2 and a digital display control panel 11, the base 1 is provided with a supporting intermittent rotating component 5 for intermittently driving the central turntable 2 to rotate, the outer side of the central turntable 2 is provided with a plurality of wheel grooves 201 evenly distributed around its rotation axis, each wheel groove 201 is rotatably provided with two pipe clamping wheels 303, the central turntable 2 is provided with a wheel driving component 3 for driving each pipe clamping wheel 303 to rotate synchronously in the same direction; the central turntable 2 rotates along its rotation axis. External guide limit plates 4 for preventing the pipe from slipping out of the wheel groove 201 are arranged on the outer sides of both ends of the moving axis, and limit baffle structures 8 for limiting the ends of the pipe are arranged at both ends of the center turntable 2; a grinding and polishing assembly 7 capable of simultaneously grinding and polishing pipes in multiple wheel grooves 201 is arranged on one side of the center turntable 2, and a pressure wheel structure 9 is respectively arranged on one side of each wheel groove 201 corresponding to the grinding and polishing area; a loading assembly 10 for loading materials into the wheel groove 201 is arranged on the upper side of the center turntable 2, and a material receiving assembly 6 is arranged on the bottom side of the center turntable 2.

[0023] See the instruction manual Figure 5 and Figure 6 As shown, the wheel drive assembly 3 includes a central chamber 202 opened at the central axis of the central turntable 2, providing installation and operation space, a central drive wheel 302 for driving the pipe clamping wheel 303 is rotatably arranged in the central chamber 202, and a first motor 301 for driving it to rotate in the central chamber 202 is fixedly arranged in the central drive wheel 302, and an anti-skid convex strip 304 is arranged on the outer side of each pipe clamping wheel 303, which enhances the friction between the pipe clamping wheel 303 and the pipe, and can effectively prevent the pipe from slipping during processing, thereby ensuring the stability and processing accuracy of the pipe during grinding and polishing, and the anti-skid convex strip 304 is made of rubber material. The output end of the digital display control panel 11 is electrically connected to the input end of the first motor 301. The wheel drive assembly 3 can synchronously realize the driving rotation of each pipe, so as to cooperate with the grinding and polishing assembly 7 to grind and polish each pipe at the same time.

[0024] See the instruction manual Figure 2 and Figure 4As shown, the intermittent rotating component 5 includes side plates 501 respectively arranged at both ends along the axial direction of the center turntable 2, each side plate 501 is fixedly arranged on the base 1 through more than two columns 502, and the center turntable 2 is rotatably arranged on two side plates 501 along its two ends along the axial direction through a rotating shaft, one end of the rotating shaft is fixedly connected to a groove wheel 506, and a dial 505 is meshedly arranged on one side of the groove wheel 506, and a fixing plate 503 is fixedly arranged on the side plate 501 by bolts, and a second motor 504 is fixedly arranged on the fixing plate 503, and the output end of the second motor 504 is connected to the dial 505, and 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 is started, the output shaft of the second motor 504 drives the dial 505 to start rotating. During the rotation process, the dial 505 will periodically engage and disengage with the groove wheel 506, thereby realizing the intermittent rotation of the groove wheel 506. Since the groove wheel 506 is connected to the rotating shaft of the center turntable 2, the intermittent rotation of the groove wheel 506 will drive the center turntable 2 to rotate intermittently, and then the pipe fittings in different embedded wheel grooves 201 are accurately transported to the grinding and polishing station and other processing stations in sequence.

[0025] See the instruction manual Figure 2 and Figure 5 As shown, the material receiving assembly 6 includes a material receiving plate 601 that is inclined, which is conducive to the natural sliding of the pipe fittings under the action of gravity, and provides a convenient channel for collecting the pipe fittings. The bottom side of the material receiving plate 601 is fixedly set on the base 1, and two parallel guide rails 602 are fixedly set on the bottom side of the material receiving plate 601. A guide groove 604 is opened in each guide rail 602, and a lead screw 605 is rotatably set in each guide groove 604. One end of the lead screw 605 is driven to rotate by a third motor 603 fixedly set at the end of the guide rail 602. A slider 606 is slidably set in the guide groove 604, and a threaded hole is opened on the slider 606 for threaded connection with the lead screw 605. One end of the slider 606 protrudes from the upper surface of the material receiving plate 601, and the output end of the digital display control panel 11 is electrically connected to the input end of the third motor 603.

[0026] In actual application, before the pipe is polished, the slider 606 is at the 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 in a stationary state, 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 tilted, the falling pipe will naturally slide along the surface of the receiving plate 601 under the action of gravity, and finally 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 wheel groove 201.

[0027] See the instruction manual Figure 2 and Figure 3 As shown, the grinding and polishing assembly 7 includes a support frame 701, on which more than three first electric telescopic rods 702 are fixedly arranged, the push rod head end 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 arranged on the connecting seat 704, the output shaft end of the fourth motor 706 is fixedly connected to a grinding and polishing wheel 705, 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-mentioned specific structural design, before performing the grinding and polishing operation, the operator first sets the initial parameters of the fourth motor 706 through the digital display control panel 11, such as speed, direction, etc., and presets a suitable grinding pressure range according to the material, shape and grinding and polishing requirements of the pipe to be processed. At this time, the first electric telescopic rod 702 is in the initial position, and a certain safety 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 the 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. In this process, the pressure sensor 703 monitors the distance change between the grinding and polishing wheel 705 and the pipe in real time. When the two are about to 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. When the grinding and polishing wheel 705 contacts the pipe, the fourth motor 706 starts to operate according to the preset parameters, driving the grinding and polishing wheel 705 to rotate at a high speed, and starts grinding and polishing 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 back the pressure data 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 amount of the first electric telescopic rod 702 to ensure that the grinding and polishing pressure is always kept within the appropriate 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 to reduce the pressure of the grinding and polishing wheel 705 on the pipe fitting; when the pressure is too low, the first electric telescopic rod 702 will be instructed to extend further to increase the grinding and polishing pressure. When the grinding and polishing operation of the pipe fitting is completed, the digital display control panel 11 will issue a command to the first electric telescopic rod 702 to retract the push rod head end, drive the grinding and polishing wheel 705 to gradually move away from the pipe fitting and return to the initial position. At the same time, the fourth motor 706 stops running and waits for the instruction of the next grinding and polishing task.

[0028] See the instruction manual Figure 3 and Figure 6 As shown, the pressing wheel structure 9 includes a third electric telescopic rod 901 fixedly arranged on the side plate 501, a push rod head end 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 pressing wheel 904 through a connecting shaft 903, and 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 actual application, the third electric telescopic rod 901 is fixed on the side plate 501, and its action is controlled by the digital display control panel 11. When the pipe fitting is transported to the grinding and polishing station, the digital display control panel 11 issues a command to the third electric telescopic rod 901 to extend its push rod head forward. The support block 902 connected to the push rod head end drives the pressing wheel 904 to approach the pipe fitting and apply a certain pressure to the surface of the pipe fitting. This pressure can press the pipe fitting tightly against the pipe fitting clamping wheel 303 to prevent the pipe fitting from being displaced, shaken or jumped 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, it is ensured that the grinding and polishing operations can be carried out at a precise position, thereby improving the accuracy and quality of grinding and polishing. And because the pressure wheel 904 is rotatably connected to the support block 902 through the connecting shaft 903, the pressure wheel 904 can flexibly adapt to pipe fittings of different diameters. When facing pipe fittings with larger diameters, the third electric telescopic rod 901 extends a longer distance, so that the pressure wheel 904 can fully contact the surface of the pipe fitting and apply appropriate pressure; when processing pipe fittings with smaller diameters, the third electric telescopic rod 901 shortens the extension length accordingly, and can still ensure that the pressure wheel 904 effectively presses the pipe fittings. This adjustability enables the pressure wheel structure 9 to be applicable to the processing of automobile pipe fittings of various specifications, enhancing the versatility and applicability of the device.

[0029] 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. The pressure applied by the pressure wheel 904 increases the friction between the pipe and the pipe clamping wheel 303, making the pipe more stable when rotating and less prone to slipping. The grinding and polishing wheel 705 can act more effectively on the weld of the pipe, improve the efficiency of grinding and polishing, ensure that the metal at the weld can be evenly removed or polished, reduce the problems of uneven grinding and missing grinding caused by unstable rotation of the pipe, and thus improve the grinding and polishing quality of the entire pipe.

[0030] The limiting baffle structure 8 includes a baffle ring 801 arranged opposite to the end edge of the center turntable 2, and a second electric telescopic rod 802 for driving the baffle ring 801 to move axially along the center turntable 2 is fixedly arranged on the side plate 501, an upper baffle rod 803 is fixedly arranged on the upper side of the baffle ring 801, and a side baffle rod 804 is arranged on one side of the upper end of the upper baffle rod 803, and a lower baffle rod 805 is fixedly connected to the lower side of the baffle ring 801, and the output end of the digital display control panel 11 is electrically connected to the input end of the second electric telescopic rod 802.

[0031] The loading assembly 10 includes a conveyor 1003 arranged between two side guard bars 804. The loading assembly 10 also includes two parallel distributed guide plates 1001. The guide plates 1001 are arranged below the conveyor 1003. A top plate 1002 is fixedly arranged on the upper side of each guide plate 1001. The base 1 is in the shape of a rectangular parallelepiped. Vertical poles 101 are fixedly arranged at the four corners of the upper side of the base 1. The top ends of the vertical poles 101 are fixedly connected to each other with cross beams 1004. The top plate 1002 is fixedly arranged on the cross beam 1004. The output end of the digital display control panel 11 is electrically connected to the input end of the conveyor 1003.

[0032] See the instruction manual Figure 6 As shown, the outer guide limit plate 4 is annular in shape and is sleeved on the outer side of the end of the center turntable 2. Notches 401 are provided on the upper and lower sides of the outer guide limit plate 4. The notches 401 of the outer guide limit plate 4 are fixed on the side plate 501 by brackets 402 respectively. An open groove for passing the pressure wheel 904 is provided on the outer guide limit plate 4. Through the above-mentioned specific structural design, the outer guide limit plate 4 is annularly sleeved on the outer side of the end of the center turntable 2. Its shape is adapted to the center turntable 2, providing a precise guide path for the placement and rotation of the pipe fitting in the wheel groove 201. When the pipe fitting is placed in the wheel groove 201 of the center turntable 2, the outer guide limit plate 4 can guide the pipe fitting to be accurately positioned, ensuring that the pipe fitting always rotates along the predetermined circular trajectory during the subsequent processing, and avoiding the pipe fitting from affecting the grinding and polishing effect due to position deviation. At the same time, the outer guide limit plate 4 effectively prevents the pipe from falling out of the wheel groove 201 due to centrifugal force and other factors during high-speed rotation, ensuring the safety and continuity of the processing process. Its structural design surrounding the end of the central turntable 2 acts like a protective barrier, firmly restraining the pipe within the specified range of motion, reducing the risk of equipment damage or safety accidents caused by accidental falling of the pipe.

[0033] Working principle and technical effect of the present invention: When in use, the conveyor 1003 in the loading assembly 10 is controlled and started by the digital display control panel 11 to convey the pipe fittings to between the two side blocking bars 804. The guide plate 1001 and the top plate 1002 assist in guiding the pipe fittings so that the pipe fittings can smoothly enter the wheel groove 201.

[0034] The intermittent rotating component 5 is supported to work, and the digital display control panel 11 controls the second motor 504 to start, driving the dial 505 to rotate. The dial 505 is engaged with the groove wheel 506. The groove wheel 506 adopts eight grooves. When the dial 505 rotates one circle, the groove wheel 506 rotates forty-five degrees, so that the center turntable 2 rotates intermittently on the side plate 501 through the rotating shaft at both ends along its axial direction, thereby realizing the station switching of the pipe fittings in different wheel grooves 201, so as to carry out subsequent grinding, polishing and unloading operations.

[0035] The outer guide limit plate 4 is sleeved on the outer side of the end of the central turntable 2, and its notch 401 is fixed on the side plate 501 through a bracket 402, which plays an anti-slip and guiding role for the pipe fitting in the embedded wheel 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 baffle ring 801 to move axially along the central turntable 2, and the upper baffle rod 803, the side baffle rod 804 and the lower baffle rod 805 jointly limit the end of the pipe fitting to ensure that the position of the pipe fitting is stable during the processing. In addition, the limit baffle structure 8 also has the function of adjusting the grinding position corresponding to the grinding and polishing component 7.

[0036] The digital display control panel 11 controls the first motor 301 in the wheel drive assembly 3 to start, driving the central drive wheel 302 to rotate in the central chamber 202, thereby driving each pipe clamping wheel 303 to rotate synchronously in the same direction. The anti-slip convex strip 304 on the outer side of the pipe clamping wheel 303 is made of rubber material to increase the friction between the pipe and the pipe, thereby steadily driving the pipe to rotate.

[0037] The digital display control panel 11 controls the first electric telescopic rod 702 in the grinding and polishing assembly 7, and the push rod head end of the first electric telescopic rod 702 moves toward the central turntable 2, and the connecting seat 704 connected through the pressure sensor 703 drives the fourth motor 706 and the grinding and polishing wheel 705 to approach the pipe fitting. The pressure sensor 703 monitors the grinding pressure in real time and feeds the data back to the digital display control panel 11 to adjust the grinding force. The fourth motor 706 drives the grinding and polishing wheel 705 to rotate to grind and polish the pipe fitting.

[0038] When the pressure wheel structure 9 on one side of each embedded wheel 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 wheel 904 close to the pipe fitting. The pressure wheel 904 has a certain pressing and stabilizing effect on the pipe fitting to ensure that the pipe fitting will not shake during the grinding and polishing process.

[0039] When the pipe is 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, so that the slider 606 slides in the guide groove 604, and one end of the slider 606 protrudes from the upper surface of the receiving plate 601, pushing the polished pipe out of the inlay groove 201, and the pipe slides down along the inclined receiving plate 601 for collection.

[0040] The entire device uniformly controls the actions of various components through the digital display control panel 11, realizes the automatic grinding and polishing of the welds of automobile pipe fittings, and improves the processing efficiency and quality.

[0041] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A welding seam grinding and polishing device for automobile pipe fittings, characterized in that: The invention comprises a base (1), a central turntable (2) and a digital display control panel (11), wherein the base (1) is provided with a supporting intermittent rotating assembly (5) for intermittently driving the central turntable (2) to rotate, the outer side of the central turntable (2) is provided with a plurality of evenly distributed wheel grooves (201) centered on the rotation axis thereof, each wheel groove (201) is provided with two pipe clamping wheels (303) for rotation, and the central turntable (2) is provided with a wheel driving assembly (3) for driving each pipe clamping wheel (303) to rotate synchronously in the same direction; The central turntable (2) is provided with outer guide limit plates (4) for preventing the pipe from slipping out of the insert wheel groove (201) at both ends of the central turntable (2), and limit baffle structures (8) for limiting the end of the pipe are provided at both ends of the central turntable (2); A grinding and polishing assembly (7) capable of simultaneously grinding and polishing pipe fittings in a plurality of wheel grooves (201) is disposed on one side of the central turntable (2), and a pressure wheel structure (9) is disposed on one side of each wheel groove (201) corresponding to the grinding and polishing position; A material loading assembly (10) for loading material into the insert wheel groove (201) is arranged on the upper side of the central turntable (2), and a material receiving assembly (6) is arranged on the bottom side of the central turntable (2).

2. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 1, characterized in that: The wheel drive assembly (3) comprises a central chamber (202) opened at the central axis of the central turntable (2), a central drive wheel (302) rotatably arranged in the central chamber (202) for driving in contact with a pipe clamping wheel (303), a first motor (301) fixedly arranged in the central drive wheel (302) for driving the central drive wheel to rotate in the central chamber (202), and an output end of the digital display control panel (11) is electrically connected to an input end of the first motor (301).

3. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 1, characterized in that: The supporting intermittent rotating assembly (5) comprises side plates (501) respectively arranged at two ends along the axis of the central turntable (2), each of the side plates (501) being fixedly arranged on the base (1) via two or more columns (502), the two ends of the central turntable (2) along its axis are rotatably arranged on the two side plates (501) via a rotating shaft, one end of the rotating shaft is fixedly connected to a groove wheel (506), one side of the groove wheel (506) is meshed with a dial (505), a fixing plate (503) is fixedly arranged on the side plate (501) via bolts, a second motor (504) is fixedly arranged on the fixing plate (503), an output end of the second motor (504) and the dial (505) are connected to each other, and an output end of the digital display control panel (11) is electrically connected to an input end of the second motor (504).

4. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 1, characterized in that: The material receiving assembly (6) comprises a material receiving plate (601) arranged in an inclined manner, the bottom side of the material receiving plate (601) being fixedly arranged on the base (1), two parallel guide rails (602) being fixedly arranged on the bottom side of the material receiving plate (601), each guide rail (602) being provided with a guide groove (604), each guide groove (604) being provided with a lead screw (605) being rotatably arranged, one end of the lead screw (605) being driven to rotate by a third motor (603) fixedly arranged at the end of the guide rail (602), a slider (606) being slidably arranged in the guide groove (604), a threaded hole being provided through the slider (606) being threadedly connected to the lead screw (605), one end of the slider (606) protruding from the upper surface of the material receiving plate (601), and an output end of the digital display control panel (11) being electrically connected to an input end of the third motor (603).

5. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 1, characterized in that: The grinding and polishing assembly (7) comprises a support frame (701), on which three or more first electric telescopic rods (702) are fixedly arranged, the push rod heads 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 arranged on the connecting seat (704), an output shaft end of the fourth motor (706) is fixedly connected to a grinding and polishing wheel (705), an output end of the digital display control panel (11) is electrically connected to an input end of the fourth motor (706), and an output end of the pressure sensor (703) is electrically connected to an input end of the digital display control panel (11).

6. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 3, characterized in that: The pressure wheel structure (9) comprises a third electric telescopic rod (901) fixedly arranged on the side plate (501); a push rod head end 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 wheel (904) via a connecting shaft (903); and an output end of the digital display control panel (11) is electrically connected to an input end of the third electric telescopic rod (901).

7. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 3, characterized in that: The limit baffle structure (8) comprises a baffle ring (801) arranged opposite to the end edge of the central turntable (2); a second electric telescopic rod (802) for driving the baffle ring (801) to move axially along the central turntable (2) is fixedly arranged on the side plate (501); an upper baffle rod (803) is fixedly arranged on the upper side of the baffle ring (801); a side baffle rod (804) is arranged on one side of the upper end of the upper baffle rod (803); a lower baffle rod (805) is fixedly connected to the lower side of the baffle ring (801); and an output end of the digital display control panel (11) is electrically connected to an input end of the second electric telescopic rod (802).

8. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 7, characterized in that: The loading assembly (10) comprises a conveyor (1003) arranged between two side blocking bars (804), and the loading assembly (10) further comprises two parallel distributed material guide plates (1001), the material guide plates (1001) being arranged below the conveyor (1003), a top plate (1002) being fixedly arranged on the upper side of each of the material guide plates (1001), the base (1) being in the shape of a rectangular parallelepiped, vertical poles (101) being fixedly arranged at the four corners of the upper side of the base (1), cross beams (1004) being fixedly connected to each other at the top ends of the vertical poles (101), the top plate (1002) being fixedly arranged on the cross beam (1004), and the output end of the digital display control panel (11) being electrically connected to the input end of the conveyor (1003).

9. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 6, characterized in that: The outer guide limit plate (4) is annular in shape and is sleeved on 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 limit plate (4). The notches (401) of the outer guide limit plate (4) are fixed to the side plates (501) via brackets (402). An opening groove for passing the pressure wheel (904) is provided on the outer guide limit plate (4).

10. The device for grinding and polishing weld seams of automobile pipe fittings according to claim 2, characterized in that: An anti-skid convex strip (304) is provided on the outer side of each pipe clamping wheel (303), and the anti-skid convex strip (304) is made of rubber material.

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