Grinding body and grinding leveling device

Abstract

The present invention provides a grinding body and a grinding leveling device, which relates to the technical field of grinding machinery, and is designed to solve the problem that the existing sealing surface grinding leveling device cannot adjust the grinding elevation angle. The grinding body includes a base, a grinding head, a driving assembly, a telescopic rod and an angle adjustment assembly. The grinding head includes a protective cover and a grinding disc. The protective cover has a connecting port and a grinding port that are relatively arranged along its thickness direction. The side wall of the protective cover is rotatably connected to the base through a first column. The grinding disc is accommodated in the protective cover and protrudes from the grinding port. The grinding disc is fixedly connected to a transmission shaft, and the transmission shaft is rotatably matched with the connecting port; the driving assembly is installed on the base, one end of the telescopic rod is universally hinged to the power output end of the driving assembly, and the other end of the telescopic rod is universally hinged to the transmission shaft; the angle adjustment assembly is installed on the base and connected to the protective cover, and the angle adjustment assembly is configured to drive the protective cover to rotate around the first column to set an angle. The present invention can adjust the grinding elevation angle.

Description

Technical Field

[0001] The invention relates to the technical field of grinding machinery, and in particular to a grinding body and a grinding leveling device. Background Art

[0002] The sealing surface is generally used on the side where two connectors contact each other. The smoother the contact surface is, the better the flatness is, and the better the sealing effect will be. Therefore, the grinding and leveling device for grinding the sealing surface has a greater impact on it.

[0003] The existing sealing surface grinding and leveling devices have the following main problems during use: (1) the grinding elevation angle cannot be adjusted, resulting in large errors when grinding sealing surfaces with a certain inward or outward inclination; (2) the grinding efficiency is low. Summary of the invention

[0004] The first object of the present invention is to provide a grinding body to solve the technical problem that the existing sealing surface grinding and leveling device cannot adjust the grinding elevation angle.

[0005] The grinding body provided by the present invention comprises a base, a grinding head, a driving assembly, a telescopic rod and an angle adjustment assembly, wherein the grinding head comprises a protective cover and a grinding disc, the protective cover has a connecting port and a grinding port which are arranged opposite to each other along its thickness direction, the side wall of the protective cover is rotatably connected to the base through a first column, the grinding disc is accommodated in the protective cover and protrudes from the grinding port, the grinding disc is fixedly connected with a transmission shaft, and the transmission shaft is rotatably matched with the connecting port; the driving assembly is installed on the base, one end of the telescopic rod is universally hinged to the power output end of the driving assembly, and the other end of the telescopic rod is universally hinged to the transmission shaft, and the driving assembly is configured to drive the grinding disc to rotate; the angle adjustment assembly is installed on the base and connected to the protective cover, and the angle adjustment assembly is configured to drive the protective cover to rotate around the first column to set an angle.

[0006] Furthermore, the base is provided with a first accommodating cavity and an opening communicating with the first accommodating cavity, the grinding head is accommodated in the first accommodating cavity, and the grinding disc protrudes from the opening; the base is also provided with a second accommodating cavity communicating with the first accommodating cavity, and the driving assembly is accommodated in the second accommodating cavity.

[0007] Furthermore, a limiting groove is provided on one of the side wall of the protective cover and the side wall of the first accommodating cavity, and the limiting groove extends along the thickness direction of the protective cover; a second column is fixedly provided on the other of the side wall of the protective cover and the side wall of the first accommodating cavity, and the second column is parallel to and spaced from the first column along the radial direction of the grinding disk; the second column is inserted in the limiting groove, and the limiting groove is configured to limit the maximum pitch angle of the protective cover.

[0008] Further, the angle adjustment assembly includes a pressure block and a tension spring, the height position of the pressure block is adjustably arranged in the first accommodating cavity, and the pressure block is located above the protective cover, one end of the tension spring is connected to the top wall of the first accommodating cavity, and the other end of the tension spring is fixedly connected to the top wall of the protective cover, and the tension spring is configured so that the top wall of the protective cover always has a movement tendency to abut against the pressure block; and / or, the telescopic rod includes a sleeve and a rotating column, the side wall of the sleeve is provided with a guide groove extending along its axial direction, the side wall of the rotating column is fixedly connected with a guide column, and the guide column is inserted in the guide groove, wherein one of the sleeve and the rotating column is universally hinged to the power output end of the drive assembly, and the other of the sleeve and the rotating column is universally hinged to the transmission shaft.

[0009] Furthermore, the angle adjustment assembly also includes a limit block and a threaded ring, the limit block is slidably installed in the first accommodating cavity, the sliding direction of the limit block is parallel to the thickness direction of the protective cover, the side wall of the first accommodating cavity is provided with a transmission opening, the side of the limit block facing the transmission opening is provided with an external thread, the threaded ring is provided with an internal thread, the threaded ring is sleeved on the base and cooperates with the external thread of the limit block through the internal thread; the pressure block is fixedly arranged on the limit block.

[0010] Furthermore, there are multiple grinding heads, which are dispersedly arranged on the surface of the grinding body facing the workpiece to be ground, the number of the telescopic rods is the same as the number of the grinding heads, and the multiple telescopic rods are respectively connected to the multiple grinding heads in a one-to-one correspondence; the driving assembly is configured to drive the grinding discs of the multiple grinding heads to rotate synchronously.

[0011] Furthermore, the driving assembly includes a driving motor, a driving gear, a driven gear, a transmission chain, a plurality of first toothed discs and a plurality of rotating shafts, the driving motor is mounted on the base, the driving gear is fixedly sleeved on the motor shaft of the driving motor; the number of the rotating shafts and the first toothed discs is the same as the number of the grinding heads, the plurality of rotating shafts are universally connected to the plurality of grinding heads one by one, the plurality of first toothed discs are fixedly sleeved on the plurality of rotating shafts one by one, the driven gear is fixedly sleeved on any one of the plurality of rotating shafts, and the driven gear is meshed with the driving gear; the transmission chain is sleeved on the plurality of the first toothed discs, and is meshed with the teeth of the plurality of the first toothed discs at the same time.

[0012] Furthermore, the drive assembly also includes a plurality of second toothed discs, each of which is meshed with the transmission chain for transmission, and each of which is rotatably mounted on the base, and each of which is located on the outer ring of the transmission chain; a diameter of the second toothed disc is smaller than a diameter of the first toothed disc.

[0013] The beneficial effects brought by the grinding body of the present invention are:

[0014] By setting a grinding body mainly composed of a base, a grinding head, a driving assembly, a telescopic rod and an angle adjustment assembly, the grinding head includes a protective cover with a connecting port and a grinding port, and a grinding disc accommodated in the protective cover and protruding from the grinding port, the side wall of the protective cover is rotatably connected to the base through a first column, and the grinding disc is connected to the power output end of the driving assembly in sequence through a transmission shaft, the telescopic rod and the power output end of the driving assembly, wherein the transmission shaft is penetrated through the connecting port and rotatably cooperates with the connecting port; one end of the telescopic rod is universally hinged to the power output end of the driving assembly, and the other end is universally hinged to the transmission shaft; the angle adjustment assembly is installed on the base and connected to the protective cover to drive the protective cover to rotate around the first column to set an angle.

[0015] When the grinding body is needed to grind the workpiece to be ground, the driving assembly is activated to output power to the rotating shaft to drive the rotating shaft to rotate; since the rotating shaft is connected to the grinding disc through the telescopic rod and the transmission shaft, the grinding disc will be driven to rotate during the rotation of the rotating shaft to achieve the rotation drive of the grinding disc, thereby using the grinding disc to achieve the grinding operation of the workpiece to be ground. When the grinding angle of the grinding disc needs to be changed, the angle adjustment assembly can be used to rotate the protective cover around the first column. Specifically, the rotation angle of the protective cover can be determined as needed. During the rotation of the protective cover, since the grinding disc is located inside the protective cover, and the grinding disc rotates with the connecting port of the protective cover through the transmission shaft, the rotation of the protective cover will drive the rotation of the grinding disc, thereby changing the grinding elevation angle and achieving the adjustment of the grinding elevation angle. Among them, when adjusting the elevation angle of the protective cover, the spacing of the universal joints connected to the two ends of the telescopic rod will change. In this process, the telescopic rod is adaptively extended and retracted to change the length of the telescopic rod. After the length of the telescopic rod is changed, it will not affect the rotation of the grinding disc, nor will it interfere with the rotation speed of the grinding disc. Therefore, after adjusting the grinding elevation angle, the grinding disc can still stably grind the workpiece to be ground, thereby ensuring the stability and reliability of the grinding body.

[0016] In summary, the grinding body can not only realize the grinding operation on the workpiece to be ground, but also realize the adjustment of the grinding elevation angle, thereby realizing the grinding operation on the sealing surfaces with different inclinations.

[0017] The second object of the present invention is to provide a grinding and leveling device to solve the technical problem that the existing sealing surface grinding and leveling device cannot adjust the grinding elevation angle.

[0018] The grinding and leveling device provided by the present invention comprises a bottom box, a lifting device and the above-mentioned grinding body, wherein the lifting device is installed on the bottom box, and the grinding body is installed on the lifting output end of the lifting device. The bottom box can also be rotatably provided with a mounting plate, and the mounting plate is opposite to the grinding body, and the mounting plate is configured to fix the workpiece to be ground.

[0019] Furthermore, the lifting device includes a first motor and a second motor running synchronously, the first motor and the second motor are both installed on the bottom box, the motor shaft of the first motor is coaxially fixedly connected with a first threaded rod, and the motor shaft of the second motor is coaxially fixedly connected with a second threaded rod with the same structure as the first threaded rod; the bottom box is fixedly provided with a first fixed column and a second fixed column, the first fixed column is slidably connected with a first movable sleeve along the lifting direction of the grinding body, the first movable sleeve is spirally sleeved with the first threaded rod, the second fixed column is slidably connected with a second movable sleeve along the lifting direction of the grinding body, and the second movable sleeve is spirally sleeved with the second threaded rod; a connecting rod is fixedly connected between the first movable sleeve and the second movable sleeve, and the grinding body is installed on the connecting rod.

[0020] The beneficial effects brought by the grinding and leveling device of the present invention are:

[0021] By arranging the above-mentioned grinding body in the grinding and leveling device, the grinding and leveling device accordingly has all the advantages of the above-mentioned grinding body, which will not be described one by one here.

[0022] In addition, by setting a bottom box and a lifting device in the grinding and leveling device, and setting a mounting plate for fixing the workpiece to be ground in the bottom box, the grinding body is installed at the lifting output end of the lifting device, so that when the workpiece to be ground needs to be ground, the workpiece to be ground can be fixed to the mounting plate to ensure the stability of the workpiece to be ground and prevent the workpiece to be ground from shifting during the grinding process. At the same time, before grinding, the height of the grinding body is adjusted by the lifting device, so that the grinding body moves in a direction away from the workpiece to be ground to achieve the loading of the workpiece to be ground; during grinding, the grinding body is moved in a direction close to the workpiece to be ground, so that the grinding body contacts the workpiece to be ground to achieve the grinding operation; after grinding is completed, the lifting device can still be used to drive the grinding body to move in a direction away from the workpiece, so as to facilitate the removal of the workpiece after grinding is completed.

[0023] In addition, the setting of the lifting device also makes it convenient for the staff to adjust the position of the grinding body in time according to the different heights of the workpiece to be ground, so as to realize the grinding of sealing surfaces such as flanges of equipment at different heights, and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0025] Figure 1A schematic diagram of the structure of a grinding and leveling device provided in an embodiment of the present invention;

[0026] Figure 2 A longitudinal sectional schematic diagram of a grinding and leveling device provided in an embodiment of the present invention;

[0027] Figure 3 A schematic longitudinal section diagram of a grinding body provided by an embodiment of the present invention;

[0028] Figure 4 for Figure 3 A partial enlarged longitudinal section diagram at point A in the middle;

[0029] Figure 5 A cross-sectional schematic diagram of a grinding body provided by an embodiment of the present invention at the position of a first accommodating cavity;

[0030] Figure 6 A cross-sectional schematic diagram of the grinding body provided by an embodiment of the present invention at the position of the second accommodating cavity.

[0031] Description of reference numerals:

[0032] 1-bottom box; 2-grinding body; 301-first fixed column; 302-second fixed column; 401-first movable sleeve; 402-second movable sleeve; 5-connecting rod; 601-first threaded rod; 602-second threaded rod; 7-mounting plate; 8-fixing bolt; 901-first motor; 902-second motor; 10-rotating motor; 11-driving motor; 12-driving gear; 13-second toothed disc; 14-driven gear; 15-rotating shaft; 16-first toothed disc; 17-second receiving cavity; 18-fixed universal joint; 19-guide groove; 20-first accommodating cavity; 21-threaded ring; 22-second column; 23-pressure block; 24-limiting groove; 25-protective sleeve; 251-connecting port; 252-grinding port; 26-guide column; 27-first column; 28-grinding disc; 281-transmission shaft; 29-limiting block; 30-tension spring; 31-sleeve; 32-rotating column; 33-cross column; 34-bearing; 35-dynamic universal joint; 36-movable groove; 37-transmission chain. DETAILED DESCRIPTION

[0033] Usually, the connection between two connecting bodies of equipment is often sealed by flanges, or by flange-like structures. The connection surface of the flange or flange-like structure forms a sealing surface. The smoother the sealing surface, the better the sealing effect. However, the existing sealing surface grinding and leveling device not only cannot change the grinding elevation angle, but also often uses a single grinding head, resulting in low grinding efficiency.

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] Figure 1 The schematic diagram of the structure of the grinding and leveling device provided in this embodiment. Figure 1 As shown, this embodiment provides a grinding and leveling device, including a base box 1, a lifting device and a grinding body 2. Specifically, the lifting device is installed on the base box 1, and the grinding body 2 is installed on the lifting output end of the lifting device. The base box 1 is also rotatably provided with a mounting plate 7, wherein the mounting plate 7 is opposite to the grinding body 2, and the mounting plate 7 is configured to fix the workpiece to be ground.

[0036] By setting a bottom box 1 and a lifting device in the grinding and leveling device, and setting a mounting plate 7 for fixing the workpiece to be ground in the bottom box 1, the grinding body 2 is installed at the lifting output end of the lifting device, so that when the workpiece to be ground needs to be ground, the workpiece to be ground can be fixed to the mounting plate 7 to ensure the stability of the workpiece to be ground and prevent the workpiece to be ground from shifting during the grinding process. At the same time, before grinding, the height of the grinding body 2 is adjusted by the lifting device, so that the grinding body 2 moves in a direction away from the workpiece to be ground to achieve the loading of the workpiece to be ground; during grinding, the grinding body 2 is moved in a direction close to the workpiece to be ground, so that the grinding body 2 contacts the workpiece to be ground to achieve the grinding operation; after grinding is completed, the lifting device can still be used to drive the grinding body 2 to move in a direction away from the workpiece, so as to facilitate the removal of the workpiece after grinding.

[0037] In addition, the setting of the lifting device also makes it convenient for the staff to adjust the position of the grinding body 2 in time according to the different heights of the workpieces to be ground, so as to realize the grinding of sealing surfaces such as flanges of equipment at different heights, and has good versatility.

[0038] In this embodiment, the grinding body 2 can not only grind the workpiece to be ground, but also adjust the grinding elevation angle to grind the sealing surfaces with different inclinations. How the grinding body 2 adjusts the grinding elevation angle will be described in detail in the following text.

[0039] Figure 2 This is a longitudinal cross-sectional diagram of the grinding and leveling device provided in this embodiment. Figure 1 , and combined with Figure 2 In this embodiment, the mounting plate 7 is provided with a plurality of fixing bolts 8, which are arranged at intervals along the circumference of the mounting plate 7. The provision of the fixing bolts 8 facilitates the fixing of the flange component or the flange-like component on the mounting plate 7 and facilitates assembly and disassembly.

[0040] Specifically, the mounting plate 7 is provided with a threaded hole, and the fixing bolt 8 is threadedly connected to the threaded hole. When the surface of the flange is ground, the flange hole on the flange can be made to face the threaded hole on the mounting plate 7, and then the fixing bolt 8 is passed through the flange hole and screwed into the threaded hole to fix the flange.

[0041] Please continue to refer to Figure 2 In this embodiment, a rotary motor 10 is installed in the bottom box 1. Specifically, the housing of the rotary motor 10 is fixedly arranged relative to the bottom box 1, and the motor shaft of the rotary motor 10 extends upward and is fixedly connected to the mounting plate 7. By setting the rotary motor 10, the mounting plate 7 can be driven to rotate, thereby realizing the rotation of the workpiece to be ground, so that the workpiece to be ground can contact the grinding body 2 at various positions along its circumference to complete a full range of grinding operations.

[0042] Please continue to refer to Figure 2 In this embodiment, the lifting device includes a first motor 901 and a second motor 902 that run synchronously. Specifically, the first motor 901 and the second motor 902 are both installed on the bottom box 1, and the motor shaft of the first motor 901 is coaxially fixedly connected with the first threaded rod 601, and the motor shaft of the second motor 902 is coaxially fixedly connected with the second threaded rod 602 with the same structure as the first threaded rod 601; the bottom box 1 is fixedly provided with a first fixed column 301 and a second fixed column 302, the first fixed column 301 is slidably connected with the first movable sleeve 401 along the lifting direction of the grinding body 2, the first movable sleeve 401 is spirally sleeved with the first threaded rod 601, and the second fixed column 302 is slidably connected with the second movable sleeve 402 along the lifting direction of the grinding body 2, and the second movable sleeve 402 is spirally sleeved with the second threaded rod 602; a connecting rod 5 is fixedly connected between the first movable sleeve 401 and the second movable sleeve 402, and the grinding body 2 is installed on the connecting rod 5.

[0043] When the grinding body 2 needs to be raised, the first motor 901 and the second motor 902 can be started. At this time, the first motor 901 and the second motor 902 run synchronously, the first motor 901 drives the first threaded rod 601 to rotate, and the second motor 902 drives the second threaded rod 602 to rotate; during the rotation of the first threaded rod 601, the first movable sleeve 401 is spirally matched with the first threaded rod 601, and is also restricted by the sliding match with the first fixed column 301, so that the rotation of the first threaded rod 601 drives the first movable sleeve 401 to rise; at the same time, during the rotation of the second threaded rod 602, the second movable sleeve 402 is spirally matched with the second threaded rod 602, and is also restricted by the sliding match with the second fixed column 302, so that the rotation of the second threaded rod 602 drives the second movable sleeve 402 to rise.

[0044] That is to say, in the above process, since the first motor 901 and the second motor 902 operate synchronously, and the first threaded rod 601 and the second threaded rod 602 have the same structure, the first movable sleeve 401 and the second movable sleeve 402 can be synchronously raised, so that the connecting rod 5 can be smoothly raised, thereby achieving the purpose of moving the grinding body 2 away from the mounting plate 7. When the grinding body 2 needs to be lowered, the first motor 901 and the second motor 902 can be synchronously reversed.

[0045] This arrangement for driving the grinding body 2 to rise and fall can not only realize the smooth rise and fall of the grinding body 2, but also, when the grinding body 2 rises or falls to a certain height, it can also utilize the spiral cooperation between the first threaded rod 601 and the first movable sleeve 401 and the spiral cooperation between the second threaded rod 602 and the second movable sleeve 402 to realize self-locking of the position of the connecting rod 5, that is, to realize self-locking of the position of the grinding body 2, so that the grinding body 2 can be stably located at the current height position without accidentally falling.

[0046] It should be noted that, in the present embodiment, the first threaded rod 601 and the second threaded rod 602 have the same structure, which means that they have the same thread direction and pitch. This arrangement enables the first movable sleeve 401 and the second movable sleeve 402 to rise and fall synchronously during the operation of the first motor 901 and the second motor 902.

[0047] Please continue to refer to Figure 2 In this embodiment, the rotating motor 10, the first motor 901 and the second motor 902 are all arranged inside the bottom box 1. This arrangement realizes the hidden installation of the rotating motor 10, the first motor 901 and the second motor 902, which can not only effectively protect the rotating motor 10, the first motor 901 and the second motor 902 from damage, but also has a dustproof effect, so as to reduce the maintenance frequency of the rotating motor 10, the first motor 901 and the second motor 902, thereby saving maintenance costs.

[0048] Figure 3 A schematic longitudinal section of the grinding body 2 provided in this embodiment, Figure 4 for Figure 3 The partial enlarged longitudinal section diagram at A in the figure. Figure 3 and Figure 4As shown, this embodiment also provides a grinding body 2, including a base, a grinding head, a driving assembly, a telescopic rod and an angle adjustment assembly. Specifically, the grinding head includes a protective cover 25 and a grinding disc 28. The protective cover 25 has a connecting port 251 and a grinding port 252 that are relatively arranged along its thickness direction. The side wall of the protective cover 25 is rotatably connected to the base through a first column 27. The grinding disc 28 is accommodated in the protective cover 25 and protrudes from the grinding port 252. The grinding disc 28 is fixedly connected to a transmission shaft 281, and the transmission shaft 281 is rotatably matched with the connecting port 251; the driving assembly is installed on the base, one end of the telescopic rod is universally hinged to the power output end of the driving assembly, and the other end of the telescopic rod is universally hinged to the transmission shaft 281, and the driving assembly is configured to drive the grinding disc 28 to rotate; the angle adjustment assembly is installed on the base and connected to the protective cover 25, and the angle adjustment assembly is configured to drive the protective cover 25 to rotate around the first column 27 to set an angle.

[0049] When the grinding body 2 is needed to grind the workpiece to be ground, the driving assembly is activated to output power to the rotating shaft 15, driving the rotating shaft 15 to rotate; since the rotating shaft 15 is connected to the grinding disc 28 through the telescopic rod and the transmission shaft 281, the grinding disc 28 will be driven to rotate together during the rotation of the rotating shaft 15, realizing the rotation drive of the grinding disc 28, thereby realizing the grinding operation of the workpiece to be ground using the grinding disc 28. When the grinding angle of the grinding disc 28 needs to be changed, the angle adjustment assembly can be used to rotate the protective cover 25 around the first column 27. Specifically, the rotation angle of the protective cover 25 can be determined as needed. During the rotation of the protective cover 25, since the grinding disc 28 is located inside the protective cover 25, and the grinding disc 28 is rotated and matched with the connecting port 251 of the protective cover 25 through the transmission shaft 281, the rotation of the protective cover 25 will drive the rotation of the grinding disc 28, thereby changing the grinding elevation angle, realizing the adjustment of the grinding elevation angle. Among them, when adjusting the elevation angle of the protective cover 25, the spacing of the universal joints connected to the two ends of the telescopic rod will change. During this process, the telescopic rod is adaptively extended and retracted to change the length of the telescopic rod. After the length of the telescopic rod is changed, it will not affect the rotation of the grinding disc 28, nor will it interfere with the rotation speed of the grinding disc 28. Therefore, after adjusting the grinding elevation angle, the grinding disc 28 can still stably grind the workpiece to be ground, thereby ensuring the stability and reliability of the grinding body 2.

[0050] It should be noted that, in this embodiment, the grinding body 2 can grind the sealing surface and the center dividing surface of the workpiece to be ground to increase the flatness of the workpiece to be ground, thereby improving the sealing effect when it is in contact with other parts. When the grinding disc 28 grinds the workpiece to be ground at a certain pitch angle, a conical sealing surface and a center dividing surface are processed on the workpiece to be ground.

[0051] Please continue to refer to Figure 4In this embodiment, the connection port 251 is provided with a bearing 34 , and the transmission shaft 281 cooperates with the inner ring of the bearing 34 .

[0052] Please continue to refer to Figure 4 In this embodiment, a fixed universal joint 18 is provided at the top end of the transmission shaft 281 and the bottom end of the rotating shaft 15. A cross column 33 is rotatably provided inside the fixed universal joint 18. The cross column 33 is in a cross shape. One pair of ends of the cross column 33 are rotatably connected to the fixed universal joint 18, and the other pair of ends of the cross column 33 are rotatably connected to the dynamic universal joint 35, thereby forming a universal hinge connection between the telescopic rod and the power output end of the driving assembly and between the telescopic rod and the transmission shaft 281.

[0053] Please continue to refer to Figure 3 In this embodiment, the telescopic rod includes a sleeve 31 and a rotating column 32. Specifically, the side wall of the sleeve 31 is provided with a guide groove 19 extending along its axial direction, and the side wall of the rotating column 32 is fixedly provided with a guide column 26, which is inserted into the guide groove 19, wherein the sleeve 31 is universally hinged to the transmission shaft 281, and the rotating column 32 is universally hinged to the power output end of the driving assembly.

[0054] This arrangement of the telescopic rod can not only realize adaptive telescopic extension and retraction to change the length of the telescopic rod during the pitch angle adjustment of the protective cover 25, but also realize telescopic guidance by utilizing the sliding of the guide column 26 in the guide groove 19 during the telescopic rod extension and retraction process. In addition, the plug-in fit between the guide column 26 and the guide groove 19 also effectively limits the relative rotational freedom between the rotating column 32 and the sleeve 31, thereby ensuring the power transmission from the drive assembly to the transmission shaft 281.

[0055] Please continue to refer to Figure 3 In this embodiment, the base is provided with a first accommodating cavity 20 and an opening communicating with the first accommodating cavity 20 , wherein the grinding head is accommodated in the first accommodating cavity 20 , and the grinding disc 28 protrudes from the opening.

[0056] The grinding disc 28 protrudes from the opening so that the grinding disc 28 can reliably contact the workpiece to be ground, thereby achieving effective grinding of the workpiece to be ground. By providing the first accommodating cavity 20 on the base, the grinding disc 28 can be effectively accommodated. On the one hand, it can provide a certain protection for the grinding head, and on the other hand, it can also reduce the height dimension of the grinding body 2 of this embodiment, making the structure of the grinding body 2 more compact, thereby reducing space occupation.

[0057] Please continue to refer to Figure 3 In this embodiment, the base is further provided with a second accommodating chamber 17 communicating with the first accommodating chamber 20 , wherein the driving assembly is accommodated in the second accommodating chamber 17 .

[0058] By opening a second accommodating cavity 17 for accommodating the drive assembly on the base, the drive assembly can be hidden installed, which not only protects the drive assembly, but also prevents damage caused by workers accidentally touching the drive assembly, thereby improving the safety of the grinding body 2 of this embodiment during operation.

[0059] Figure 5 This is a cross-sectional schematic diagram of the grinding body 2 provided in this embodiment at the position of the first accommodating cavity 20. Please continue to refer to Figure 3 , and combined with Figure 5 In this embodiment, a limiting groove 24 is provided on the side wall of the first accommodating cavity 20, and the limiting groove 24 extends along the thickness direction of the protective cover 25. A second column 22 is fixedly provided on the side wall of the protective cover 25. The second column 22 is parallel to and spaced from the first column 27 along the radial direction of the grinding disk 28, and the second column 22 is inserted into the limiting groove 24, and the limiting groove 24 is configured to limit the maximum pitch angle of the protective cover 25.

[0060] By setting the limiting groove 24, the movable range of the second column 22 is limited. Specifically, the movable range of the second column 22 is constrained between the two ends of the limiting groove 24. Since the limiting groove 24 is opened in the first accommodating cavity 20, and the second column 22 is fixedly arranged on the side wall of the protective cover 25, the above-mentioned setting realizes the limitation of the maximum pitch angle of the protective cover 25, thereby preventing the protective cover 25 from pitching too large, that is, preventing the grinding disc 28 from pitching too large.

[0061] In other embodiments, the limiting groove 24 may be opened on the side wall of the protective cover 25 , and the second column 22 may be fixedly arranged on the side wall of the first accommodating cavity 20 . This arrangement can also serve the purpose of limiting the maximum pitch angle of the protective cover 25 .

[0062] Please continue to refer to Figure 3 In this embodiment, the angle adjustment assembly includes a pressure block 23 and a tension spring 30. Specifically, the height position of the pressure block 23 is adjustably arranged in the first accommodating cavity 20, and the pressure block 23 is located above the protective cover 25. One end of the tension spring 30 is connected to the top wall of the first accommodating cavity 20, and the other end of the tension spring 30 is used for fixed connection with the top wall of the protective cover 25. The tension spring 30 is configured to make the top wall of the protective cover 25 always have a movement tendency to abut against the pressure block 23.

[0063] When the pitch angle of the protective cover 25 needs to be adjusted, the height position of the pressing block 23 in the first accommodating chamber 20 can be adjusted, for example, the pressing block 23 is raised to a certain height. During this process, the protective cover 25 rotates clockwise (by 1 / 4) around the first column 27 under the tension of the tension spring 30. Figure 3Take the protective cover 25 on the left side of the viewing angle as an example), at the same time, the second column 22 slides upward in the limiting groove 24, and under the premise of not exceeding the maximum pitch angle of the protective cover 25 (the second column 22 does not abut against the top of the limiting groove 24), the top wall of the protective cover 25 will abut against the pressing block 23 to complete the adjustment of the pitch angle of the protective cover 25; similarly, when the pressing block 23 drops to a certain height, during this process, the protective cover 25 will rotate counterclockwise around the first column 27 under the pressure of the pressing block 23 (with a pitch angle of 1 / 400mm). Figure 3 Take the protective cover 25 on the left side of the viewing angle as an example), and the tension spring 30 always applies tension to the protective cover 25, so that the top wall of the protective cover 25 remains in contact with the pressure block 23 to ensure stability during the grinding process. At the same time, the second column 22 slides downward in the limiting groove 24, and the pitch angle of the protective cover 25 is adjusted without exceeding the maximum pitch angle of the protective cover 25 (the second column 22 does not abut against the bottom of the limiting groove 24).

[0064] This setting of the angle adjustment component can not only realize the effective adjustment of the pitch angle of the protective cover 25, that is, realize the effective adjustment of the pitch angle of the grinding disc 28, so that the grinding disc 28 grinds the sealing surface of the workpiece to be grinded at a set angle, but also ensure the working stability of the grinding disc 28 after the pitch angle adjustment is completed.

[0065] Please continue to refer to Figure 3 and Figure 5 In this embodiment, the angle adjustment assembly also includes a limit block 29 and a threaded ring 21. Specifically, the limit block 29 is movably installed in the first accommodating cavity 20. The moving direction of the limit block 29 is parallel to the thickness direction of the protective cover 25. A transmission port is provided on the side wall of the first accommodating cavity 20. The limit block 29 is provided with an external thread on the side facing the transmission port, and the threaded ring 21 is provided with an internal thread. The threaded ring 21 is sleeved on the base and cooperates with the external thread of the limit block 29 through the internal thread; the pressure block 23 is fixedly provided on the limit block 29.

[0066] When the pitch angle of the protective cover 25 needs to be adjusted, the threaded ring 21 is rotated, and the internal thread of the threaded ring 21 is spirally matched with the external thread of the limit block 29 through the transmission port, so that the spiral transmission force can be transmitted to the limit block 29 through the transmission port; at the same time, the limit block 29 is slidingly connected to the first accommodating cavity 20. Under the restriction of the sliding connection, the spiral match between the threaded ring 21 and the limit block 29 will be converted into the movement of the limit block 29 in the height direction, thereby realizing the change of the height position of the pressing block 23 fixedly connected to the limit block 29.

[0067] The arrangement in which the threaded ring 21 cooperates with the limit block 29 can not only adjust the height position of the pressure block 23, but also has a smooth transmission and can achieve stepless adjustment, so that the pressure block 23 can be at any height position of the first accommodating cavity 20 under the effective spiral matching length, thereby enabling the protective cover 25 to obtain any pitch angle within the adjustment range.

[0068] Please continue to refer to Figure 5 In this embodiment, a movable groove 36 is provided on the side wall of the first accommodating cavity 20. The movable groove 36 is a through groove that penetrates the side wall of the first accommodating cavity 20. The movable groove 36 is used to form a transmission port. Both sides of the surface of the limit block 29 are provided with protrusions. Both sides of the groove wall of the movable groove 36 are provided with grooves. The protrusions on both sides are respectively slidably connected with the grooves on both sides, and the sliding direction is along the thickness direction of the protective cover 25. The sliding connection between the limit block 29 and the base can be achieved by the sliding cooperation between the protrusion and the groove.

[0069] Please continue to refer to Figure 3 and Figure 5 In this embodiment, the number of grinding heads is three, and the three grinding heads are dispersedly arranged on the surface of the grinding body 2 facing the workpiece to be ground. The number of telescopic rods is the same as the number of grinding heads, which is also three, and the three telescopic rods are respectively connected to the three grinding heads in a one-to-one correspondence; the driving assembly is configured to drive the grinding discs 28 of the three grinding heads to rotate synchronously.

[0070] When the workpiece to be ground needs to be ground, the driving assembly is started, and the grinding discs 28 of the three grinding heads are driven to rotate synchronously under the action of the driving assembly. By providing three grinding heads, the three grinding heads can act on the workpiece to be ground at the same time during grinding, which can increase the grinding area per unit time and thus improve the grinding efficiency.

[0071] It should be noted that, in this embodiment, the structure of the grinding body 2 is described only when the number of grinding heads is three. It is understandable that the number of grinding heads can also be other forms. This embodiment only takes three as an example and cannot be regarded as a limitation of this embodiment.

[0072] Please continue to refer to Figure 5 In this embodiment, three grinding heads are arranged at equal intervals along the circumference of the threaded ring 21.

[0073] Figure 6 This is a cross-sectional schematic diagram of the grinding body 2 provided in this embodiment at the position of the second accommodating cavity 17. Please continue to refer to Figure 3 , and combined with Figure 6In this embodiment, the driving assembly includes a driving motor 11, a driving gear 12, a driven gear 14, a transmission chain 37, three first toothed discs 16 and three rotating shafts 15. Specifically, the driving motor 11 is installed on a base, and the driving gear 12 is fixedly sleeved on the motor shaft of the driving motor 11; the three rotating shafts 15 are universally connected to the three grinding heads one by one, and the three first toothed discs 16 are fixedly sleeved on the three rotating shafts 15 one by one, and the driven gear 14 is fixedly sleeved on any one of the three rotating shafts 15, and the driven gear 14 is meshed with the driving gear 12; the transmission chain 37 is sleeved on multiple first toothed discs 16, and is meshed with the teeth of multiple first toothed discs 16 at the same time.

[0074] When the grinding operation is performed, the driving motor 11 rotates, driving the driving gear 12 to rotate. During the rotation of the driving gear 12, the driven gear 14 meshing with it is driven to rotate; the driven gear 14 transmits power to the rotating shaft 15 fixedly mounted thereon, causing the rotating shaft 15 to rotate, thereby causing the first toothed disc 16 fixedly mounted on the rotating shaft 15 to rotate; the first toothed disc 16 transmits power to the remaining first toothed discs 16 through the transmission chain 37, thereby realizing the synchronous rotation of the three first toothed discs 16, thereby achieving the purpose of driving the three grinding heads simultaneously.

[0075] This arrangement of the drive assembly can achieve simultaneous driving of three grinding heads by only one drive motor 11, and the driving is reliable and highly synchronous.

[0076] Please continue to refer to Figure 6 In this embodiment, the drive assembly also includes three second toothed discs 13. Specifically, the three second toothed discs 13 are all engaged with the transmission chain 37 for transmission. The three second toothed discs 13 are rotatably mounted on the base, and the three second toothed discs 13 are located on the outer ring of the transmission chain 37. The diameter of the second toothed disc 13 is smaller than the diameter of the first toothed disc 16.

[0077] The arrangement of the second toothed disc 13 can achieve the tensioning of the transmission chain 37, ensure the reliability of the meshing between the first toothed disc 16 and the transmission chain 37, and thus ensure the reliable transmission of power to the three rotating shafts 15. Moreover, by setting the diameter of the second toothed disc 13 to be smaller than the diameter of the first toothed disc 16, the space occupied by the second toothed disc 13 outside the transmission chain 37 can be reduced, thereby ensuring the compactness of the structure of the drive assembly.

[0078] In this embodiment, the driving motor 11 , the driving gear 12 , the driven gear 14 , the transmission chain 37 , the three first gear plates 16 , the three second gear plates 13 and the three rotating shafts 15 are all located in the second accommodating chamber 17 .

[0079] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

[0080] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0081] In the above embodiments, descriptions of directions such as “upper”, “lower”, “side”, “top”, “bottom”, “clockwise”, “counterclockwise”, “left”, “right”, etc. are all based on the drawings.

[0082] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grinding body, characterized in that: The invention comprises a base, a grinding head, a driving assembly, a telescopic rod and an angle adjustment assembly, wherein the grinding head comprises a protective cover (25) and a grinding disc (28), the protective cover (25) having a connecting port (251) and a grinding port (252) arranged opposite to each other along the thickness direction thereof, the side wall of the protective cover (25) being rotatably connected to the base via a first column (27), the grinding disc (28) being accommodated in the protective cover (25) and protruding from the grinding port (252), the grinding disc (28) being fixedly connected to a transmission shaft (281), the transmission shaft (281) being rotatably matched with the connecting port (251); the driving assembly is mounted on the base, one end of the telescopic rod is connected to a universal joint at a power output end of the driving assembly The other end of the telescopic rod is universally hinged to the transmission shaft (281), and the driving assembly is configured to drive the grinding disc (28) to rotate; the angle adjustment assembly is mounted on the base and connected to the protective cover (25), and the angle adjustment assembly is configured to drive the protective cover (25) to rotate around the first column (27) to a set angle; the base is provided with a first accommodating cavity (20) and an opening communicating with the first accommodating cavity (20), the grinding head is accommodated in the first accommodating cavity (20), and the grinding disc (28) protrudes from the opening; the base is also provided with a second accommodating cavity (17) communicating with the first accommodating cavity (20), and the driving assembly is accommodated in the second accommodating cavity (17); The angle adjustment assembly comprises a pressure block (23), a tension spring (30), a limit block (29) and a threaded ring (21); the pressure block (23) is arranged in the first accommodating cavity (20) in an adjustable height position, and the pressure block (23) is located above the protective sleeve (25); one end of the tension spring (30) is connected to the top wall of the first accommodating cavity (20), and the other end of the tension spring (30) is fixedly connected to the top wall of the protective sleeve (25); the tension spring (30) is configured so that the top wall of the protective sleeve (25) always has a contact with the pressure block (23). The telescopic rod comprises a sleeve (31) and a rotating column (32), the side wall of the sleeve (31) is provided with a guide groove (19) extending along the axial direction thereof, the side wall of the rotating column (32) is fixedly connected with a guide column (26), and the guide column (26) is inserted into the guide groove (19), wherein one of the sleeve (31) and the rotating column (32) is universally hinged to the power output end of the drive assembly, and the other of the sleeve (31) and the rotating column (32) is universally hinged to the transmission shaft (281); The limit block (29) is slidably mounted in the first accommodating cavity (20); the sliding direction of the limit block (29) is parallel to the thickness direction of the protective sleeve (25); a transmission opening is provided on the side wall of the first accommodating cavity (20); an external thread is provided on a side of the limit block (29) facing the transmission opening; the threaded ring (21) is provided with an internal thread; the threaded ring (21) is sleeved on the base and cooperates with the external thread of the limit block (29) through the internal thread; the pressing block (23) is fixedly mounted on the limit block (29).

2. The grinding body according to claim 1, characterized in that One of the side walls of the protective sleeve (25) and the side walls of the first accommodating cavity (20) is provided with a limiting groove (24), the limiting groove (24) extending in the thickness direction of the protective sleeve (25), and the other of the side walls of the protective sleeve (25) and the first accommodating cavity (20) is fixedly provided with a second column (22), the second column (22) and the first column (27) being parallel and spaced apart along the radial direction of the grinding disc (28), the second column (22) being inserted into the limiting groove (24), and the limiting groove (24) being configured to limit the maximum pitch angle of the protective sleeve (25).

3. The grinding body according to claim 1 or 2, characterized in that The number of the grinding heads is multiple, and the multiple grinding heads are dispersedly arranged on the surface of the grinding body facing the workpiece to be ground, the number of the telescopic rods is the same as the number of the grinding heads, and the multiple telescopic rods are respectively connected to the multiple grinding heads in a one-to-one correspondence; the driving assembly is configured to drive the grinding discs (28) of the multiple grinding heads to rotate synchronously.

4. The grinding body according to claim 3, characterized in that The driving assembly comprises a driving motor (11), a driving gear (12), a driven gear (14), a transmission chain (37), a plurality of first toothed discs (16) and a plurality of rotating shafts (15); the driving motor (11) is mounted on the base; the driving gear (12) is fixedly sleeved on the motor shaft of the driving motor (11); the number of the rotating shafts (15) and the first toothed discs (16) is the same as the number of the grinding heads; the plurality of rotating shafts (15) are universally connected to the plurality of grinding heads in a one-to-one correspondence; the plurality of first toothed discs (16) are fixedly sleeved on the plurality of rotating shafts (15) in a one-to-one correspondence; the driven gear (14) is fixedly sleeved on any one of the plurality of rotating shafts (15), and the driven gear (14) is meshed with the driving gear (12); the transmission chain (37) is sleeved on the plurality of first toothed discs (16) and is meshed with the teeth of the plurality of first toothed discs (16) at the same time.

5. The grinding body according to claim 4, characterized in that The drive assembly further comprises a plurality of second toothed discs (13), each of which is meshed with the transmission chain (37) for transmission, the plurality of second toothed discs (13) are rotatably mounted on the base, and the plurality of second toothed discs (13) are located on the outer ring of the transmission chain (37); the diameter of the second toothed disc (13) is smaller than the diameter of the first toothed disc (16).

6. A grinding and leveling device, characterized in that: The invention comprises a bottom box (1), a lifting device and a grinding body according to any one of claims 1 to 5, wherein the lifting device is mounted on the bottom box (1), the grinding body is mounted on a lifting output end of the lifting device, and the bottom box (1) is also rotatably provided with a mounting plate (7), the mounting plate (7) is opposite to the grinding body, and the mounting plate (7) is configured to fix a workpiece to be ground.

7. The grinding and leveling device according to claim 6, characterized in that: The lifting device comprises a first motor (901) and a second motor (902) which operate synchronously. The first motor (901) and the second motor (902) are both installed on the bottom box (1). The motor shaft of the first motor (901) is coaxially fixedly connected to a first threaded rod (601), and the motor shaft of the second motor (902) is coaxially fixedly connected to a second threaded rod (602) which has the same structure as the first threaded rod (601). The bottom box (1) is fixedly provided with a first fixing column (301) and a second fixing column (302). The first fixing column (301) and the second fixing column (302) are fixedly provided on the bottom box (1). The column (301) is slidably connected to a first movable sleeve (401) along the lifting direction of the grinding body, and the first movable sleeve (401) is spirally sleeved with the first threaded rod (601). The second fixed column (302) is slidably connected to a second movable sleeve (402) along the lifting direction of the grinding body, and the second movable sleeve (402) is spirally sleeved with the second threaded rod (602). A connecting rod (5) is fixedly connected between the first movable sleeve (401) and the second movable sleeve (402), and the grinding body is installed on the connecting rod (5).

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