A swing steady grinding head and a grinding main machine

Abstract

The application provides a swing steady grinding head and a grinding main machine, the grinding head comprises a connecting seat, elastic swing parts, a floating disc, a grinding assembly and a guide limiting mechanism; a plurality of elastic swing parts are distributed around the circumferential direction between the connecting seat and the floating disc, the grinding assembly is arranged at the bottom of the floating disc; the guide limiting mechanism is arranged between the connecting seat and the floating disc, and the guide limiting mechanism is located in the area surrounded by each elastic swing part. The application has the following advantages: the grinding assembly and the floating disc can flexibly float and swing under the action of each elastic swing part, so that the polishing effect can be improved; at the same time, the guide limiting mechanism can guide and limit the floating and swinging of the grinding assembly and the floating disc, so that the stability of the grinding assembly and the floating disc during swinging can be improved, the polishing effect can be further improved, and the service life of the grinding assembly can be improved.

Description

[0001] The present application relates to the technical field of polishing machines, in particular to a grinding head with stable oscillation and a polishing main machine.

[0002] The polishing and polishing of stone or plate materials is to continuously polish the surface of the material to be processed by the grinding head, so that the surface of the material to be processed reaches a certain smoothness.

[0003] The grinding block of the traditional grinding head can only revolve around the main shaft, and the polishing effect is not good. In order to improve the polishing effect, the improved grinding head disclosed in Chinese patent application No. CN202011030006.5 realizes the characteristics that the grinding block can also oscillate left and right when it rotates around the central shaft by setting a differential mechanism, a track block and a plurality of oscillating seats. However, the above existing grinding head has poor stability and flexibility during oscillation, and the grinding block is prone to wear. In view of the above problems, the present application has been developed after in-depth research on the problem.

[0004] The technical problem to be solved by the present application is to provide a grinding head with stable oscillation and a polishing main machine to solve the problem of poor stability and flexibility of the existing grinding head during oscillation, and the grinding block is prone to wear.

[0005] The present application is implemented as follows:

[0006] In a first aspect, a grinding head with stable oscillation includes a connecting seat, an elastic oscillating part, a floating disc, a polishing assembly and a guide limiting mechanism.

[0007] The connecting seat and the floating disc are spaced apart in the circumferential direction and have a plurality of elastic oscillating parts therebetween, and the polishing assembly is arranged at the bottom of the floating disc. The guide limiting mechanism is arranged between the connecting seat and the floating disc, and the guide limiting mechanism is located within the area surrounded by each of the elastic oscillating parts.

[0008] Further, the guide limiting mechanism includes an inner guide limiting body, an outer guide limiting body and a ball, the outer guide limiting body is sleeved on the outside of the inner guide limiting body, the upper end of the inner guide limiting body is connected with the connecting seat, and the lower end of the outer guide limiting body is connected with the floating disc. The outer wall of the inner guide limiting body is spaced apart in the circumferential direction and has a plurality of first ball grooves, each first ball groove is arranged by extending upward along the vertical direction from the lower part of the inner guide limiting body, the inner wall of the outer guide limiting body is provided with a second ball groove at a position corresponding to each first ball groove, each first ball groove cooperates with a second ball groove to form a ball guide limiting channel, and each ball guide limiting channel is arranged with a ball.​​​

[0009] Further, the inner guiding and limiting body comprises, from bottom to top, a guiding cylinder segment, a limiting cylinder segment, and a first locking disc, the outer diameter of the limiting cylinder segment is greater than that of the guiding cylinder segment; the first locking disc is connected with the connecting seat; each first ball groove extends from the lower end of the guiding cylinder segment to the limiting cylinder segment; a first swing floating gap is left between the upper end of the outer guiding and limiting body and the first locking disc;

[0010] The inner wall of the outer guiding and limiting body forms a limiting step, the upper part of the limiting step forms a first cavity segment, the second ball groove is formed in the first cavity segment, the lower part of the limiting step forms a second cavity segment for the guiding cylinder segment to pass through, and the lower end of the guiding cylinder segment is provided with a limiting disc body; the outer diameter of the guiding cylinder segment is smaller than the inner diameter of the second cavity segment, and the outer diameter of the limiting cylinder segment is smaller than the inner diameter of the first cavity segment and greater than the inner diameter of the second cavity segment.

[0011] Further, a first positioning convex ring is formed in the middle of the upper surface of the first locking disc, and a first positioning groove is formed in the connecting seat and tightly matches the first positioning convex ring;

[0012] A fitting through hole is formed in the middle of the floating disc, and a limiting convex ring is provided on the bottom of the outer guiding and limiting body and extends into the fitting through hole; the limiting disc body is arranged at the lower part in the fitting through hole, and the outer diameter of the limiting disc body is greater than the inner diameter of the limiting convex ring; a second positioning convex ring is formed in the middle of the lower surface of the guiding cylinder segment, and a second positioning groove is formed in the limiting disc body and tightly matches the second positioning convex ring.

[0013] Further, a plurality of elastic swing members are distributed at equal intervals around the circumferential direction between the connecting seat and the floating disc;

[0014] Each elastic swing member comprises a spring, a first limiting member arranged at the bottom of the connecting seat, and a second limiting member arranged at the top of the floating disc, the spring is installed between the first limiting member and the second limiting member, the first limiting member has a first limiting pin column inserted into the upper end of the spring, and the second limiting member has a second limiting pin column inserted into the lower end of the spring.

[0015] Further, the polishing assembly comprises a grinding disc, a polishing block, and a second locking disc;

[0016] The second locking disc is connected with the floating disc, the grinding disc is detachably installed at the bottom of the second locking disc, and the lower surface of the grinding disc is provided with a plurality of polishing blocks.

[0017] Furthermore, the lower surface of the grinding disc is provided with at least two rings of grinding blocks distributed around the circumference, each ring including several grinding blocks that are equally spaced and extend in the radial direction, and the grinding blocks in adjacent rings are staggered; a slot is provided through the grinding disc between adjacent grinding blocks in each ring.

[0018] Furthermore, the connecting seat includes a connecting column, a flange joint located at the upper end of the connecting column, and a connecting plate located at the lower end of the connecting column. The upper ends of the elastic swing member and the guide limiting mechanism are both connected to the connecting plate. The outer edge of the connecting plate extends downward around the circumference to form a protective cover covering the outside of each elastic swing member. A second swing floating gap is left between the lower end of the protective cover and the floating plate.

[0019] Furthermore, the connecting seat and the guide limiting mechanism are provided with a water passage along the central axis, and the lower end of the water passage is provided with a water outlet pipe extending to the bottom of the grinding assembly. The floating plate and the grinding assembly are provided with a pipe avoidance hole along the central axis.

[0020] Secondly, a grinding machine includes the aforementioned grinding head.

[0021] By adopting the technical solution of the present invention, at least the following beneficial effects are achieved:

[0022] 1. By arranging multiple elastic swinging elements at circumferential intervals between the connecting seat and the floating disk, and setting a guide and limiting mechanism within the area enclosed by each elastic swinging element, the entire grinding head can rotate under the drive of the main shaft of the grinding host to achieve polishing during operation. The grinding assembly and the floating disk can also flexibly float and swing under the action of each elastic swinging element, thereby improving the grinding effect. At the same time, the guide and limiting mechanism can guide and limit the floating swing of the grinding assembly and the floating disk, thereby improving the stability of the grinding assembly and the floating disk during swing, which can further improve the grinding effect and ensure that the grinding assembly is not easily worn during polishing, thus helping to extend the service life of the grinding assembly.

[0023] 2. The guide and limiting mechanism is designed to include an inner guide and limiting body, an outer guide and limiting body, and balls. A ball guide and limiting channel is formed between the outer wall of the inner guide and limiting body and the inner wall of the outer guide and limiting body. A ball is rolled in each ball guide and limiting channel. This ensures that during operation, the grinding component and the floating disk can only move up and down in the vertical direction under the guidance of the balls and the ball guide and limiting channels. At the same time, the cooperation between the balls and the ball guide and limiting channels can also effectively control the swing angle of the grinding component and the floating disk, thereby ensuring that the grinding component and the floating disk can move up and down flexibly and smoothly.

[0024] 3. By designing the grinding assembly to have a grinding disc that can be detachably connected to the second locking disc, and placing the grinding blocks on the lower surface of the grinding disc, it is very convenient to disassemble and assemble the grinding disc during actual use, thus making it easy to replace the grinding blocks; at the same time, the lower surface of the grinding disc is designed to have at least two rings of grinding blocks distributed around the circumference, and the grinding blocks of the two adjacent rings are staggered, which can achieve a better grinding effect.

[0025] 4. By designing the connecting seat to have a protective cover covering the outside of each elastic swinging component, and leaving a second swinging floating gap between the lower end of the protective cover and the floating disk, the protective cover can be used to protect the internal elastic swinging component and guide limiting mechanism during actual operation, and the protective cover will not affect the floating swing of the floating disk. [Attached Image Description]

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0027] Figure 1 This is a three-dimensional structural diagram of a grinding head with stable oscillation according to the present invention;

[0028] Figure 2 This is a three-dimensional view of the bottom structure of a grinding head with stable oscillation according to the present invention;

[0029] Figure 3 This is one of the cross-sectional views of a grinding head with stable oscillation according to the present invention;

[0030] Figure 4 This is a second cross-sectional view of a grinding head with stable oscillation according to the present invention;

[0031] Figure 5 This is a structural diagram of a grinding head with stable oscillation according to the present invention after the grinding components are removed;

[0032] Figure 6 This is a structural diagram of the inner guide limiting body in this invention;

[0033] Figure 7 This is a top three-dimensional structural diagram of the outer guide limiting body in this invention;

[0034] Figure 8 This is a three-dimensional structural diagram of the bottom of the outer guide limiting body in this invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] Grinding head 100;

[0037] Connecting seat 1, first positioning groove 11, connecting column 12, flange joint 13, connecting plate 14, protective cover 15, second swing floating gap 16;

[0038] Elastic swing element 2, spring 21, first limiting element 22, first limiting pin 221, second limiting element 23, second limiting pin 231;

[0039] Floating disk 3, assembly through hole 31;

[0040] Grinding component 4, grinding disc 41, slotting 411, grinding block 42, second locking disc 43;

[0041] Guide limiting mechanism 5, inner guide limiting body 51, first ball groove 511, guide column section 512, second positioning protrusion ring 5121, limiting column section 513, first locking disc 514, first positioning protrusion ring 5141, first locking component 515, outer guide limiting body 52, second ball groove 521, avoidance blind hole 522, limiting step 523, first cavity section 524, second cavity section 525, limiting protrusion ring 526, ball 53, ball guide limiting channel 54, first swing floating gap 55, limiting disc body 56, second positioning groove 561, second locking component 57, third locking component 58;

[0042] Water passage 6, water outlet pipe 61, pipe avoidance hole 62.

Detailed Implementation Methods

[0043] To better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] It should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing these embodiments and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0045] Example 1

[0046] Please see Figures 1 to 8As shown in the preferred embodiment of the present invention, a grinding head 100 with stable oscillation includes a connecting seat 1, an elastic oscillating element 2, a floating disk 3, a grinding assembly 4, and a guide and limiting mechanism 5. The connecting seat 1 is connected to the spindle of the grinding host machine, so that the entire grinding head 100 can be rotated by the spindle of the grinding host machine to achieve grinding and polishing. The elastic oscillating element 2 is used to perform floating oscillation. The floating disk 3 connects the grinding assembly 4 and the elastic oscillating element 2, allowing both the grinding assembly 4 and the floating disk 3 to float and oscillate. The grinding assembly 4 is used to polish stone or slab-shaped materials. The guide and limiting mechanism 5 guides and limits the floating oscillation of the grinding assembly 4 and the floating disk 3.

[0047] A plurality of elastic swinging elements 2 are distributed around the circumferential direction between the connecting seat 1 and the floating disk 3, and the grinding component 4 is disposed at the bottom of the floating disk 3; the guide limiting mechanism 5 is disposed between the connecting seat 1 and the floating disk 3, and the guide limiting mechanism 5 is located within the area enclosed by each of the elastic swinging elements 2.

[0048] This invention provides a method to improve the polishing effect by arranging multiple elastic swinging elements 2 at circumferential intervals between the connecting seat 1 and the floating disk 3, and by setting a guide and limiting mechanism 5 within the area enclosed by each elastic swinging element 2. This allows the entire grinding head 100 to rotate under the drive of the main shaft of the grinding host to achieve polishing, while the grinding assembly 4 and the floating disk 3 can flexibly float and swing under the action of each elastic swinging element 2. At the same time, the guide and limiting mechanism 5 can guide and limit the floating swing of the grinding assembly 4 and the floating disk 3, thereby improving the stability of the grinding assembly 4 and the floating disk 3 during swinging, further improving the polishing effect, and ensuring that the grinding assembly 4 is not easily worn during polishing, which is beneficial to extending the service life of the grinding assembly 4.

[0049] Please refer to the following in some embodiments of the present invention. Figures 3-4 as well as Figures 6-8As shown, the guide limiting mechanism 5 includes an inner guide limiting body 51, an outer guide limiting body 52, and a ball bearing 53. The outer guide limiting body 52 is sleeved on the outside of the inner guide limiting body 51. The upper end of the inner guide limiting body 51 is connected to the connecting seat 1, so that the inner guide limiting body 51 can only rotate with the connecting seat 1 under the drive of the main shaft of the grinding machine. The lower end of the outer guide limiting body 52 is connected to the floating disk 3, so that the outer guide limiting body 52 can float up and down with the floating disk 3. The outer wall of the inner guide limiting body 51 is circumferentially... The inner guide limiting body 52 has several first ball grooves 511 spaced apart. Each first ball groove 511 extends vertically upward from the lower part of the inner guide limiting body 51. The inner wall of the outer guide limiting body 52 has a second ball groove 521 at the position corresponding to each first ball groove 511. Each first ball groove 511 and a second ball groove 521 cooperate to form a ball guide limiting channel 54. Each ball guide limiting channel 54 has a ball 53 rollingly disposed therein, that is, the ball 53 can roll up and down within the ball guide limiting channel 54.

[0050] This invention designs a guide limiting mechanism 5 comprising an inner guide limiting body 51, an outer guide limiting body 52, and a ball bearing 53. A ball bearing guide limiting channel 54 is formed between the outer wall of the inner guide limiting body 51 and the inner wall of the outer guide limiting body 52. ​​A ball bearing 53 is rolled in each ball bearing guide limiting channel 54. This ensures that during operation, the grinding component 4 and the floating disk 3 can only move up and down in the vertical direction under the guidance of the ball bearing 53 and the ball bearing guide limiting channel 54. At the same time, the cooperation between the ball bearing 53 and the ball bearing guide limiting channel 54 can also effectively control the swing angle of the grinding component 4 and the floating disk 3, thereby ensuring that the grinding component 4 and the floating disk 3 can move up and down flexibly and smoothly.

[0051] In a specific embodiment of the present invention, in order to further improve the stability of the floating oscillation, the outer wall of the inner guide limiting body 51 is provided with six first ball grooves 511 at equal intervals around the circumference, and correspondingly, the inner wall of the outer guide limiting body 52 is provided with six second ball grooves 521 at equal intervals.

[0052] More specifically, the inner guide limiting body 51 includes, from bottom to top, a guide column section 512, a limiting column section 513, and a first locking disc 514. The outer diameter of the limiting column section 513 is larger than the outer diameter of the guide column section 512, so as to achieve the upper limiting function using the limiting column section 513. The first locking disc 514 is locked to the connecting seat 1, and each of the first ball grooves 511 extends from the lower end of the guide column section 512 to the limiting column section 513. A first swing floating gap 55 is left between the upper end of the outer guide limiting body 52 and the first locking disc 514, so that the outer guide limiting body... 52 can move up and down using the first swing floating gap 55; in a specific implementation of the present invention, the first locking disc 514 and the connecting seat 1 are connected together by a number of first locking parts 515. The first locking parts 515 can be bolts. At the same time, in order to avoid the first locking parts 515 affecting the up and down movement of the outer guide limiting body 52 and to ensure that the overall structure is more compact, the top surface of the outer guide limiting body 52 is formed with a clearance blind hole 522 at the position corresponding to each first locking part 515, so as to use the clearance blind hole 522 to avoid the first locking part 515;

[0053] The inner wall of the outer guide limiting body 52 forms a limiting step 523. In practical use, when the outer guide limiting body 52 moves upward until the limiting step 523 contacts the lower end of the limiting column segment 513, the outer guide limiting body 52 will be unable to continue moving upward, thus playing an upper limiting role. A first cavity segment 524 is formed above the limiting step 523, and the second ball groove 521 is formed in the first cavity segment 524, so that the limiting step 523 can also limit the ball 53, ensuring that the ball 53 will not fall down. A second cavity segment 525 is formed below the limiting step 523 for the guide column segment 512 to pass through, and the guide column segment 512... The lower end of 2 is provided with a limiting disc 56. When the lower end of the outer guide limiting body 52 moves downward to contact the upper surface of the limiting disc 56, the outer guide limiting body 52 will be unable to continue moving downward, thus playing a lower limiting role. The outer diameter of the guide column segment 512 is smaller than the inner diameter of the second cavity segment 525, so that the guide column segment 512 can pass through the second cavity segment 525, and the guide column segment 512 will not affect the movement of the outer guide limiting body 52. ​​The outer diameter of the limiting column segment 513 is smaller than the inner diameter of the first cavity segment 524 and larger than the inner diameter of the second cavity segment 525, so that the limiting column segment 513 can be inserted into the first cavity segment 524 and cooperate with the limiting step 523 to achieve the upper limiting function. As can be seen from the above, in specific use, the guiding function of the guide limiting mechanism 5 of the present invention is mainly achieved by the cooperation of the ball 53 and the ball guide limiting channel 54, while the limiting function is mainly achieved by the cooperation of the limiting step 523 and the limiting column section 513, and the cooperation of the lower end of the outer guide limiting body 52 and the limiting disc 56.

[0054] Furthermore, a first positioning protrusion ring 5141 is formed in the middle of the upper surface of the first locking disc 514, and a first positioning groove 11 is formed on the connecting seat 1 to fit tightly with the first positioning protrusion ring 5141. The inner guide limiting body 51 is accurately positioned on the connecting seat 1 by the cooperation of the first positioning protrusion ring 5141 and the first positioning groove 11. This not only facilitates the actual installation operation, but also makes the inner guide limiting body 51 and the connecting seat 1 more reliably connected together.

[0055] The floating disk 3 has a through-hole 31 in the middle. The bottom of the outer guide limiting body 52 extends downward and has a limiting protrusion 526 that extends into the through-hole 31. The limiting disk 56 is located in the lower part of the through-hole 31. The outer diameter of the limiting disk 56 is larger than the inner diameter of the limiting protrusion 526, so that the limiting protrusion 526 can contact the limiting disk 56 during the movement of the outer guide limiting body 52, thereby realizing the lower limiting function. A second positioning protrusion 5121 is formed in the middle of the lower surface of the guide column section 512. A second positioning groove 561 is formed on the limiting disk 56 that fits tightly with the second positioning protrusion 5121. The limiting disk 56 is accurately positioned at the bottom of the guide column section 512 by the cooperation of the second positioning protrusion 5121 and the second positioning groove 561. This facilitates the actual installation operation and makes the limiting disk 56 and the guide column section 512 more reliably connected.

[0056] In a specific implementation of this invention, a limiting protrusion 526 can be formed by extending downward from the inner side of the lower surface of the outer guide limiting body 52 (i.e., the side of the lower surface of the outer guide limiting body 52 near the guide column section 512). The outer side of the lower surface of the outer guide limiting body 52 (i.e., the side of the lower surface of the outer guide limiting body 52 away from the guide column section 512) is then locked and connected to the floating disk 3 by a plurality of second locking members 57, wherein the second locking members 57 can be bolts. Simultaneously, the limiting disk body 56 is locked and connected to the bottom of the guide column section 512 by a plurality of third locking members 58, wherein the third locking members 58 can be bolts.

[0057] In some embodiments of the present invention, in order to enable the grinding assembly 4 and the floating disk 3 to float and swing more stably, a plurality of elastic swinging elements 2 are distributed at equal intervals around the circumference between the connecting seat 1 and the floating disk 3; preferably, eight elastic swinging elements 2 are distributed at equal intervals around the circumference between the connecting seat 1 and the floating disk 3.

[0058] Please refer to this carefully. Figure 4As shown, each of the elastic swing members 2 includes a spring 21, a first limiting member 22 disposed at the bottom of the connecting seat 1, and a second limiting member 23 disposed at the top of the floating disk 3. The spring 21 is installed between the first limiting member 22 and the second limiting member 23. The first limiting member 22 has a first limiting pin 221 inserted into the upper end of the spring 21 to limit the upper end of the spring 21 so that the upper end of the spring 21 will not detach from the first limiting member 22. The second limiting member 23 has a second limiting pin 231 inserted into the lower end of the spring 21 to limit the lower end of the spring 21 so that the lower end of the spring 21 will not detach from the second limiting member 23.

[0059] In some embodiments of the present invention, the polishing assembly 4 includes a polishing disc 41, a polishing block 42, and a second locking disc 43;

[0060] The second locking disc 43 is locked to the floating disc 3. In a specific implementation of the present invention, the second locking disc 43 and the floating disc 3 can be locked together by a number of fourth locking components (not shown), which may include bolts, nuts, etc. The grinding disc 41 is detachably installed at the bottom of the second locking disc 43. Specifically, the grinding disc 41 can be locked to the second locking disc 43 by a number of fifth locking components (not shown), which may be bolts. The lower surface of the grinding disc 41 is provided with a number of grinding blocks 42 to achieve polishing. Specifically, the grinding blocks 42 can be fixedly connected to the lower surface of the grinding disc 41 by welding.

[0061] Furthermore, the lower surface of the grinding disc 41 is provided with at least two rings of grinding blocks 42 distributed around the circumference. Each ring includes several grinding blocks 42 that are evenly spaced and extend radially, with adjacent rings of grinding blocks 42 staggered from each other. A slot 411 is provided through each adjacent pair of grinding blocks 42 in each ring on the grinding disc 41. The slot 411 reduces the weight of the grinding disc 41 and facilitates chip removal during grinding. In one specific embodiment of the invention, the lower surface of the grinding disc 41 is provided with two rings of grinding blocks 42 distributed around the circumference.

[0062] The present invention designs the grinding assembly 4 to have a grinding disc 41 detachably connected to the second locking disc 43, and places the grinding blocks 42 on the lower surface of the grinding disc 41, which makes it very convenient to disassemble and assemble the grinding disc 41 during actual use, thereby facilitating the replacement of the grinding blocks 42; at the same time, the lower surface of the grinding disc 41 is designed to have at least two rings of grinding blocks 42 distributed around the circumference, and the grinding blocks 42 in the two adjacent rings are staggered, which can achieve a better grinding effect.

[0063] In some embodiments of the present invention, the connecting seat 1 includes a connecting column 12, a flange joint 13 disposed at the upper end of the connecting column 12, and a connecting plate 14 disposed at the lower end of the connecting column 12, wherein the flange joint 13 is used to connect with the spindle of the grinding host; the upper ends of the elastic swing member 2 and the guide limiting mechanism 5 are both connected to the connecting plate 14; the outer edge of the connecting plate 14 extends downward around the circumference to form a protective cover 15 covering the outside of each elastic swing member 2, and a second swing floating gap 16 is left between the lower end of the protective cover 15 and the floating plate 3 to avoid the protective cover 15 affecting the floating swing of the floating plate 3.

[0064] The present invention designs the connecting seat 1 to have a protective cover 15 covering the outside of each elastic swinging member 2, and leaves a second swinging floating gap 16 between the lower end of the protective cover 15 and the floating disk 3, so that the protective cover 15 can play a certain protective role for the internal elastic swinging member 2 and the guide limiting mechanism 5 during specific operation, and the protective cover 15 will not affect the floating swinging of the floating disk 3.

[0065] In some embodiments of the present invention, the connecting seat 1 and the guide limiting mechanism 5 are provided with a water passage 6 through the center axis. The lower end of the water passage 6 is provided with a water outlet pipe 61 extending to the bottom of the grinding assembly 4. During the processing, water can be sprayed onto the processing material using the water passage 6 and the water outlet pipe 61 to cool it down and quickly remove waste. The floating plate 3 and the grinding assembly 4 are provided with a pipe clearance hole 62 through the center axis to facilitate the installation of the water outlet pipe 61.

[0066] Example 2

[0067] Please see Figures 1 to 8 As shown in the preferred embodiment of the present invention, the polishing host includes a spindle, a drive device, and a polishing head 100. The drive device is connected to the spindle and drives the spindle to rotate. The polishing head 100 is connected to the lower end of the spindle so that the spindle drives the polishing head 100 to rotate to achieve polishing. The specific structure of the polishing head 100 and the technical effects obtained are exactly the same as those in Embodiment 1. Please refer to the detailed description of Embodiment 1 for details, which will not be repeated here.

[0068] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A grinding head with stable oscillation, characterized in that: Includes a connecting seat, a flexible swing component, a floating disk, a grinding assembly, and a guide and limit mechanism; Several elastic swinging members are distributed around the circumferential direction between the connecting seat and the floating disk, and the grinding assembly is located at the bottom of the floating disk; the guide limiting mechanism is located between the connecting seat and the floating disk, and the guide limiting mechanism is located within the area enclosed by each of the elastic swinging members. The guide limiting mechanism includes an inner guide limiting body and an outer guide limiting body, with the outer guide limiting body sleeved on the outside of the inner guide limiting body; the upper end of the inner guide limiting body is connected to the connecting seat, and the lower end of the outer guide limiting body is connected to the floating disk. The inner guide limiting body comprises, from bottom to top, a guide column segment, a limiting column segment, and a first locking disc. The outer diameter of the limiting column segment is larger than the outer diameter of the guide column segment. The first locking disc is locked to the connecting seat. A first swing floating gap is left between the upper end of the outer guide limiting body and the first locking disc. A limiting step is formed on the inner wall of the outer guide limiting body. A first cavity segment is formed above the limiting step, and a second cavity segment is formed below the limiting step for the guide column segment to pass through. A limiting disc is provided at the lower end of the guide column segment. The outer diameter of the guide column segment is smaller than the inner diameter of the second cavity segment, and the outer diameter of the limiting column segment is smaller than the inner diameter of the first cavity segment but larger than the inner diameter of the second cavity segment. An assembly through hole is provided through the middle of the floating disc. A limiting protrusion ring extends downward from the bottom of the outer guide limiting body and extends into the assembly through hole. The limiting disc is located in the lower part of the assembly through hole, and the outer diameter of the limiting disc is larger than the inner diameter of the limiting protrusion ring.

2. The grinding head with stable oscillation as described in claim 1, characterized in that: The guiding and limiting mechanism also includes balls; the outer wall of the inner guiding and limiting body is provided with a plurality of first ball grooves at intervals around the circumference, each first ball groove extending vertically upward from the lower part of the inner guiding and limiting body; the inner wall of the outer guiding and limiting body is provided with a second ball groove at the position corresponding to each first ball groove, each first ball groove and a second ball groove cooperating to form a ball guiding and limiting channel, and a ball rolling in each ball guiding and limiting channel; each first ball groove extends from the lower end of the guide column section to the limiting column section, and the second ball groove is formed in the first cavity section.

3. The grinding head with stable oscillation as described in claim 2, characterized in that: A first positioning protrusion is formed in the middle of the upper surface of the first locking disc, and a first positioning groove is formed on the connecting seat that closely matches the first positioning protrusion. A second positioning protrusion is formed in the middle of the lower surface of the guide column section, and a second positioning groove is formed on the limiting disc body to fit tightly with the second positioning protrusion.

4. The grinding head with stable oscillation as described in claim 1, characterized in that: Several elastic swinging elements are evenly distributed around the circumference between the connecting seat and the floating disk. Each of the elastic swinging components includes a spring, a first limiting component disposed at the bottom of the connecting seat, and a second limiting component disposed at the top of the floating plate. The spring is installed between the first limiting component and the second limiting component, and the first limiting component has a first limiting pin inserted into the upper end of the spring, and the second limiting component has a second limiting pin inserted into the lower end of the spring.

5. A grinding head with stable oscillation as described in claim 1, characterized in that: The grinding assembly includes a grinding disc, a grinding block, and a second locking disc; The second locking disc is locked to the floating disc, and the grinding disc is detachably installed at the bottom of the second locking disc. Several grinding blocks are provided on the lower surface of the grinding disc.

6. A grinding head with stable oscillation as described in claim 5, characterized in that: The lower surface of the grinding disc has at least two rings of grinding blocks distributed around the circumference. Each ring includes several grinding blocks that are evenly spaced and extend in the radial direction. The grinding blocks in adjacent rings are staggered. A slot is provided through the grinding disc between adjacent grinding blocks in each ring.

7. A grinding head with stable oscillation as described in claim 1, characterized in that: The connecting seat includes a connecting column, a flange joint located at the upper end of the connecting column, and a connecting plate located at the lower end of the connecting column. The upper ends of the elastic swing member and the guide limiting mechanism are both connected to the connecting plate. The outer edge of the connecting plate extends downward around the circumference to form a protective cover covering the outside of each elastic swing member. A second swing floating gap is left between the lower end of the protective cover and the floating plate.

8. A grinding head with stable oscillation as described in claim 1, characterized in that: The connecting seat and the guide limiting mechanism are provided with a water passage along the central axis. The lower end of the water passage is provided with a water outlet pipe extending to the bottom of the grinding assembly. The floating plate and the grinding assembly are provided with a pipe avoidance hole along the central axis.

9. A grinding main unit, characterized in that: The grinding host includes the grinding head as described in any one of claims 1-8.

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