A grinding device for bridge bearing production

Abstract

The embodiments of this disclosure relate to the field of grinding technology. One embodiment of this disclosure provides a grinding device for bridge bearing production, used for grinding the spherical and flat sliding plates of a spherical bearing. The device includes a support assembly and a grinding assembly. The support assembly supports the spherical and flat sliding plates and includes: a base with an annular support portion around its perimeter for supporting the perimeter of both the spherical and flat sliding plates; a central top member, which is slidably mounted on the base and located inside the annular support portion, with a spherical upper surface for supporting the spherical and flat sliding plates; and a first elastic member, one end of which acts on the central top member and the other end on the base, providing an upward force away from the base. This technical solution solves the technical problem in the prior art where grinding devices cannot simultaneously adapt to the spherical and flat sliding plates of bridge spherical bearings.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of manufacturing and polishing technology, and more specifically, to a polishing apparatus for the production of bridge bearings. Background Technology

[0002] Spherical bearings are crucial force-transfer and displacement-adjusting components in modern long-span bridges (such as cable-stayed bridges and suspension bridges). Bridge spherical bearings have both spherical and planar sliding plates, allowing for rotation and sliding. During operation, the spherical sliding plate can rotate freely along its spherical surface, easily adapting to the beam rotation requirements caused by temperature changes and loads, preventing stress concentration between the beam and the bearing. The planar sliding plate can slide smoothly in the horizontal direction, meeting the longitudinal or lateral displacement requirements of the bridge (such as length changes caused by thermal expansion and contraction). During the production of bridge spherical bearings, the spherical and planar sliding plates are usually ground using the same equipment. However, existing grinding devices cannot simultaneously accommodate both spherical and planar sliding plates, resulting in inconsistent grinding effects. Summary of the Invention

[0003] To overcome the above-mentioned defects, the embodiments of this disclosure provide a grinding device for bridge bearing production, which solves the technical problem that the grinding device in the prior art cannot simultaneously adapt to the spherical sliding plate and the flat sliding plate of the bridge spherical bearing.

[0004] According to one aspect, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, used for grinding the spherical sliding plate and the flat sliding plate of a spherical bearing, comprising a support assembly and a grinding assembly, the grinding assembly being vertically and horizontally movable above the support assembly, the support assembly supporting the spherical sliding plate and the flat sliding plate, the support assembly comprising:

[0005] The base has an annular support portion around its perimeter, which is used to support the perimeter of the spherical sliding plate and the perimeter of the planar sliding plate;

[0006] A central top component is slidably mounted on the base and located inside the ring of the annular support. The upper surface of the central top component is spherical and is used to support the spherical sliding plate and the planar sliding plate.

[0007] A first elastic element, one end of which acts on the central top element and the other end of which acts on the base, provides the central top element with an upward force away from the base.

[0008] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the support assembly further includes:

[0009] The ring top component is slidably mounted on the base. It is annular and has a spherical upper end. There are several ring top components that are concentrically mounted with the central top component. The upper surfaces of the several ring top components are spherical with the same diameter as the upper surface of the central top component, and they are used to jointly support the concave part of the spherical slide plate.

[0010] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the support assembly further includes:

[0011] A limiting member is provided on the base to limit the upper limit of the upward sliding of the center top member and the ring top member. When the spherical sliding plate is pressed on the center top member and the ring top member, the center top member can contact the limiting member, and the ring top member moves downward away from the limiting member.

[0012] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the support assembly further includes:

[0013] A rotating support is provided on both the central top member and the ring top member. The rotating support is arranged in several circles. After rotation, the rotating support can be higher than the upper surface of the central top member and the ring top member.

[0014] The second elastic element has one end acting on the rotating support and the other end acting on the central top member or the ring top member, providing a force that causes the rotating support to rotate upward away from the central top member and the ring top member.

[0015] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the support assembly further includes:

[0016] A straight stop, wherein the straight stop is horizontally slidably disposed on the annular support and there are two parallel ones;

[0017] The third elastic element has one end acting on the linear stop and the other end acting on the annular support, providing a force that brings the two linear stops closer to each other. The two linear stops are used to clamp the planar slide plate, and when clamped, the upper end of the linear stop is lower than the upper surface of the planar slide plate.

[0018] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the straight stop has a clearance notch for clearance when the edge of the spherical slide plate is placed on the annular support.

[0019] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the grinding assembly includes:

[0020] A movable seat, the movable seat being configured to be able to move vertically and horizontally;

[0021] A swing seat, which is oscillatingly mounted on the movable seat;

[0022] A rotating rod, which is rotatably mounted on the swing seat;

[0023] A grinding head, which rotates with the rotating rod to grind the spherical slide plate and the flat slide plate, and a swing seat that swings to change the angle of the grinding head.

[0024] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the grinding assembly further includes:

[0025] A sliding rod is slidably mounted on the rotating rod and rotates together with the rotating rod; the grinding head is located at the lower end of the rotating rod.

[0026] A fourth elastic element, one end of which acts on the slide bar and the other end of which acts on the rotating rod, provides a force for the slide bar to slide downward toward the spherical slide plate and the planar slide plate.

[0027] For example, at least one embodiment of this disclosure provides a grinding apparatus for bridge bearing production, wherein the grinding assembly further includes:

[0028] A guide ball head is rotatably disposed at the lower end of the slide bar and located in the middle of the grinding head. The guide ball head is used to abut against the surfaces of the spherical slide plate and the flat slide plate and roll along them.

[0029] For example, at least one embodiment of this disclosure provides a grinding device for bridge bearing production, wherein the grinding head has a recessed portion in the middle, and the guide ball head is located within the recessed portion.

[0030] The beneficial effects of the embodiments disclosed herein are as follows:

[0031] In this disclosure, when grinding a spherical slide plate, the spherical slide plate is placed on a support assembly. The central top member, under the action of the first elastic member, pushes upwards, jointly supporting the spherical slide plate with the annular support. The grinding assembly is activated, and the grinding tool, controlled by the lifting and horizontal movement mechanism, grinds along the outer spherical surface of the spherical slide plate. During grinding, the spherical slide plate is stably supported by the central top member, preventing it from moving or rotating, ensuring uniform contact pressure between the grinding tool and the spherical slide plate, and improving the grinding effect. When grinding a flat slide plate, the flat slide plate is placed on the support assembly. The central top member is pressed down by the heavier flat slide plate, and ultimately the edge of the flat slide plate is supported by the annular support. The grinding assembly is activated, and the grinding tool moves horizontally to grind the flat slide plate.

[0032] The combination of the annular support and the central top part enables the grinding device to grind both the flat slide and the spherical slide of the spherical support, greatly improving the adaptability of the equipment and the ease of processing. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the polishing device in one embodiment of the present disclosure;

[0035] Figure 2 for Figure 1 A top view of the grinding device in the embodiment;

[0036] Figure 3 for Figure 2 Schematic diagram of the sectional structure of the middle AA section;

[0037] Figure 4 for Figure 3 A magnified schematic diagram of the C-shaped structure.

[0038] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure of the middle BB;

[0039] Figure 6 for Figure 5 A magnified schematic diagram of the middle D section;

[0040] In the figure: base 100, annular support 110, central top part 120, first elastic element 130, annular top part 140, limiting part 150, rotating support part 160, second elastic element 170, straight stop part 180, clearance notch 181, third elastic element 190, moving seat 200, swing seat 210, rotating rod 220, grinding head 230, recessed part 231, sliding rod 240, fourth elastic element 250, guide ball head 260. Detailed Implementation

[0041] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0042] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0043] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0044] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0046] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] like Figures 1-6The diagram illustrates a grinding apparatus for bridge bearing production according to an embodiment of the present disclosure, used for grinding the spherical and planar sliding plates of a spherical bearing. It includes a support assembly 1 and a grinding assembly 2. The grinding assembly 2 is vertically and horizontally movable above the support assembly 1. The support assembly 1 supports the spherical and planar sliding plates and includes a base 100, a central top member 120, and a first elastic member 130. The base 100 has an annular support portion 110 around its perimeter, supporting the perimeter of the spherical and planar sliding plates. The central top member 120 is vertically and slidably disposed on the base 100 and located inside the annular support portion 110. The upper surface of the central top member 120 is spherical, supporting the spherical and planar sliding plates. One end of the first elastic member 130 acts on the central top member 120, and the other end acts on the base 100, providing a force that pulls the central top member 120 upward away from the base 100.

[0048] For example, this grinding device is mainly used in bridge bearing production workshops to grind the spherical and flat sliding plates of spherical bearings. The entire device is placed on a spacious, flat workbench.

[0049] The base 100 of the support component 1 is made of cast steel and is disc-shaped. Its diameter is designed according to the dimensions of common spherical and flat skateboards to ensure sufficient strength and stability to withstand various forces generated during grinding. The annular support 110 is integrally formed with the base 100. The annular support 110 provides support for the spherical and flat skateboards from all sides, ensuring stable support during grinding and guaranteeing grinding accuracy.

[0050] The central top component 120 is also made of cast steel, with a cylindrical bottom that slides into a corresponding groove on the base 100 to achieve lifting and sliding. The upper surface is a precisely machined spherical shape, with the radius customized to match the curvature of the spherical slide plate; the radius of the central top component 120 matches this. The cylindrical portion of the central top component 120 ensures sufficient support.

[0051] When a spherical or flat skateboard is placed, the central top member 120 is pushed upward by the first elastic member 130, and together with the annular support 110, it supports the skateboard. For a spherical skateboard, the spherical surface of the central top member 120 is in close contact with the inner spherical surface of the spherical skateboard, providing a stable support point and preventing the spherical skateboard from sliding horizontally or vertically. Furthermore, due to the sufficient friction between the central top member 120 and the spherical skateboard, it is also ensured that the spherical skateboard will not rotate. For a flat skateboard, the central top member 120 also provides an upward support force to ensure that the flat skateboard remains stable in the horizontal direction.

[0052] The first elastic element 130 can be a spring. One end of the spring is tightly welded to the center of the bottom of the central top element 120, and the other end is fixed in the corresponding groove at the bottom of the base 100, ensuring that the spring will not shift during operation. The first elastic element 130 provides an upward force to the central top element 120 away from the base 100, enabling the central top element 130 to support the spherical slide plate upward, maintain good contact with the slide plate, and improve the stability and adaptability of the support. When grinding the flat slide plate, the heavier flat slide plate can press the central top element 120 down to be flush with the annular support part 110, thereby preventing the central top element 120 from being too high and causing the flat slide plate to be unstablely supported on the annular support part 110.

[0053] Before starting work, the sanding assembly 2 adjusts the sanding tool to a suitable height via a lifting mechanism, maintaining an appropriate distance from the surface of the skateboard to be sanded. For example, for a spherical skateboard, a smaller initial distance is set between the lower end face of the sanding tool and the outer surface of the spherical skateboard; for a flat skateboard, the initial distance can be set even smaller. Simultaneously, the sanding tool is moved to the starting sanding position on the skateboard via a horizontal moving mechanism, typically set at the edge of the skateboard.

[0054] When polishing the spherical slide plate, the spherical slide plate is placed on the support assembly 1. The central top member 120 is lifted upwards by the first elastic member 130, and together with the annular support part 110, it supports the spherical slide plate. The polishing assembly 2 is activated, and the polishing tool, under the control of the lifting and horizontal movement mechanism, polishes along the outer spherical surface of the spherical slide plate. During the polishing process, the spherical slide plate is stably supported by the central top member 120, preventing it from moving or rotating, ensuring uniform contact pressure between the polishing tool and the spherical slide plate, and improving the polishing effect.

[0055] When polishing the flat skateboard, the skateboard is placed on the support assembly 1. The central top piece 120 is pressed down by the heavier skateboard, and finally the edge of the skateboard is supported by the annular support part 110. The polishing assembly 2 is activated, and the polishing tool moves horizontally to polish the flat skateboard.

[0056] The cooperation between the annular support 110 and the central top part 120 enables the grinding device to grind both the flat slide plate and the spherical slide plate of the spherical support, which greatly improves the adaptability of the equipment and the ease of processing.

[0057] In some examples, the support assembly 1 also includes a ring top member 140, which is slidably mounted on the base 100. The ring top member 140 is annular and has a spherical upper end. There are several ring top members 140 arranged concentrically with the central top member 120. The upper surfaces of the several ring top members 140 and the upper surface of the central top member 120 are spherical with the same diameter, which are used to jointly support the concave part of the spherical slide plate.

[0058] For example, the ring top member 140 is made of the same cast steel as the center top member 120 to ensure that its strength and wear resistance can adapt to the grinding working environment. The ring top member 140 is ring-shaped, and its inner and outer diameters are designed according to the size of the spherical slide and the position of the center top member 120 in the actual application.

[0059] The upper end of the ring top member 140 is spherical, and this spherical shape has the same diameter as the upper surface of the center top member 120. Through processing technology, it is ensured that the spherical curvature of multiple ring top members 140 and the center top member 120 is consistent, so as to achieve precise support for the concave part of the spherical slide plate.

[0060] The bottom of the ring top component 140 is also designed as a ring, which cooperates with the corresponding annular groove on the base 100 to achieve lifting and sliding. The cylindrical bottom of each ring top component 140 ensures sufficient support stability and smooth sliding.

[0061] There are several ring top members 140, which are concentrically arranged with the center top member 120. Generally, it is more appropriate to set 3 to 5 ring top members according to the size and weight distribution of the spherical slide. They are evenly distributed on the circumference with the center top member as the center to ensure that the weight of the spherical slide can be distributed more evenly and improve the stability of the support.

[0062] Before the spherical slide plate is placed, the ring top member 140 is in an initial upward-push-up position under the action of its corresponding elastic structure. The elastic structure is similar to the first elastic member 130 and can be a spring, with one end connected to the bottom of the ring top member and the other end fixed to the corresponding position of the base. At the same time, the center top member 120 is also pushed upward under the action of the first elastic member 130, so that the spherical surfaces of the center top member 120 and the ring top member 140 together form a continuous and stable support surface.

[0063] When placing the spherical slide plate, it is placed on the support assembly 1, with its concave portion contacting the spherical surfaces of the central top member 120 and the ring top member 140. Because the ring top member 140 and the central top member 120 are concentric and have the same spherical curvature, the spherical slide plate can be placed stably on the support surface, and its weight is evenly distributed by the central top member 120 and the multiple ring top members 140. For example, after the spherical slide plate is placed, the central top member 120 bears part of the slide plate's weight, while the remaining weight is evenly distributed by the ring top members 140.

[0064] When polishing a spherical slide plate, the polishing tool polishes the outer surface of the slide plate under the control of a lifting and horizontal movement mechanism. During this process, the spherical slide plate is subjected to polishing force and its own weight. The center top member 120 and the ring top member 140, under support, ensure the stability of the spherical slide plate during the polishing process, which helps to improve the uniformity and precision of polishing.

[0065] When polishing the flat skateboard, the flat skateboard is placed on the support assembly 1. The center top piece 120 and the ring top piece 140 are both pressed down by the heavier flat skateboard, and finally the edge of the flat skateboard is supported by the ring support part 110. The polishing assembly 2 is activated, and the polishing tool moves in the horizontal direction to polish the flat skateboard.

[0066] Multiple ring top members 140 are concentrically arranged with the central top member 120 and jointly support the concave part of the spherical slide plate, which changes the problem of uneven force distribution that may occur when only the central top member is used for support. By evenly distributing the weight of the spherical slide plate, the support stability of the spherical slide plate is greatly enhanced, effectively reducing the possibility of the spherical slide plate shaking or shifting during the grinding process, thereby improving the grinding accuracy.

[0067] Because the ring top member 140 and the center top member 120 better maintain the stability of the spherical slide plate during the grinding process, the contact between the grinding tool and the outer surface of the spherical slide plate is more uniform, thereby improving the uniformity of grinding. This helps to ensure the spherical shape accuracy of the spherical slide plate, allowing it to rotate more smoothly in practical applications and meet the beam rotation requirements of bridges caused by temperature changes and loads. The design of the center top member 120 and the ring top member 140 allows the support assembly 1 to not only provide spherical support for the spherical slide plate, but also, when supporting the planar slide plate, the center top member 120 and the ring top member 140 can be lowered to be flush with the annular support part 110, thus satisfying the support assembly 1's support for the planar slide plate and greatly improving applicability and support stability.

[0068] In some examples, the support component 1 also includes a limiting member 150 disposed on the base 100 to limit the upper limit of the upward sliding of the center top member 120 and the ring top member 140. When the spherical slide plate presses on the center top member 120 and the ring top member 140, the center top member 120 can contact the limiting member 150, and the ring top member 140 moves downward away from the limiting member 150.

[0069] For example, the limiting member 150 is disc-shaped, with a diameter slightly larger than the cylindrical bottom diameter of the central top member 120 and the ring top member 140, and the limiting member 150 is fixed on the base 100.

[0070] The limiting member 150 is mounted on the base 100 at a suitable height. When the central top member 120 and the ring top member 140 slide upward to their limit position under the action of the first elastic member 130 and the corresponding elastic member of the ring top member, the top of the central top member 120 just touches the lower surface of the limiting member 150, while the ring top member 140 maintains a certain distance from the limiting member 150. This height setting limits the upper limit of the upward sliding of the central top member 120, preventing it from lifting the spherical slide plate and causing the edge of the spherical slide plate to be unstablely supported on the annular support 110. At the same time, it allows the ring top member 140 to flexibly adjust its height within a certain range according to the pressure changes of the spherical slide plate, ensuring sufficient contact friction between the ring top member 140 and the spherical slide plate and preventing the spherical slide plate from rotating during grinding.

[0071] Before the spherical slide is placed, the center top member 120 and the ring top member 140 are in an upward-push-up state under the action of their respective elastic members. At this time, the center top member 120 contacts the limiting member 150, and the ring top member 140 contacts the limiting member 150, ensuring that the support assembly has a certain elastic preload.

[0072] When the spherical slide is placed on the support assembly, its gravity will not cause the central top member 120 to move downwards, but it will cause the ring top member 140 to move downwards. As the spherical slide is positioned, the central top member 120 remains in contact with the limiting member 150, but the ring top member 140 moves downwards, moving away from the limiting member 150. Because the ring top member 140 is at a certain distance from the limiting member 150, under the action of the elastic member, its height can continue to adjust according to the pressure distribution of different parts of the spherical slide to better fit the concave part of the spherical slide and provide uniform support. The advantage is that the central top member 120 can provide stable support for the spherical slide without lifting it too high, which would prevent the edges of the spherical slide from being supported by the annular support part 110. Furthermore, the ring top member 140 can be pressed down by the spherical slide, and under the action of the corresponding spring, the ring top member 140 can provide a large static friction force to the spherical slide, thereby ensuring that the spherical slide remains stable during polishing, without rotating or moving and thus affecting the polishing process.

[0073] When polishing a spherical slide plate, the force applied by the polishing tool causes displacement and pressure changes. The center top member 120 provides a support reference for the spherical slide plate, preventing it from moving excessively upwards and affecting polishing accuracy. The ring top member 140, under the action of the elastic element, flexibly adjusts its height within a limited range according to changes in polishing force and the weight of the spherical slide plate, maintaining close contact with the concave part of the spherical slide plate to ensure sufficient static friction and guarantee the stability of the spherical slide plate during polishing. The annular support 110 supports the edge of the spherical slide plate, maintaining the stability of the entire support structure and preventing large displacement or deformation due to uneven force.

[0074] In some examples, the support assembly 1 further includes a rotating support 160 and a second elastic member 170. The rotating support 160 is rotatably disposed on both the central top member 120 and the ring top member 140. The rotating support 160 is arranged in several circles. After rotating, the rotating support 160 can be higher than the upper surface of the central top member 120 and the ring top member 140. One end of the second elastic member 170 acts on the rotating support 160, and the other end acts on the central top member 120 or the ring top member 140, providing a force for the rotating support 160 to rotate upward away from the central top member 120 and the ring top member 140.

[0075] For example, the rotating support 160 is made of metal and has a certain friction on its upper surface. Several mounting holes are evenly spaced along the circumference on the central top member 120 and the ring top member 140 for mounting the rotating support 160. The rotating support 160 is rotatably connected to the central top member 120 or the ring top member 140 via a pin. Multiple rotating support members 160 can be mounted on each central top member 120, and multiple rotating support members 160 can also be mounted on the ring top member 140 according to its size, to ensure uniform support for the spherical slide plate.

[0076] After the rotating support 160 rotates under the action of the second elastic member 170, its top can be higher than the upper surfaces of the central top member 120 and the ring top member 140 by a certain distance. This design allows the rotating support 160 to contact the spherical slide plate, providing it with more flexible support.

[0077] The second elastic element 170 can be a spring or a torsion spring. One end of the second elastic element 170 abuts against the bottom side of the rotating support 160, and the other end abuts against the side of the corresponding mounting hole of the center top member 120 or the ring top member 140, ensuring that the spring can effectively provide the force for the rotating support 160 to rotate upward away from the center top member 120 and the ring top member 140.

[0078] Before placing the spherical or flat skateboard, the second elastic member 170 is in a naturally extended state, and the rotating support member 160 rotates upward, with its top protruding above the upper surfaces of the central top member 120 and the ring top member 140. The rotating support members 160 are arranged in a circle to provide initial support for the spherical skateboard that is about to be placed.

[0079] When the spherical slide is placed on the support assembly 1, its weight first acts on the rotating support 160. As the spherical slide gradually falls, the rotating support 160, under pressure, overcomes the elastic force of the second elastic member 170 and rotates downward, so that the spherical slide can smoothly contact the upper surfaces of the center top member 120 and the ring top member 140.

[0080] The rotating support 160 can rotate and, under the action of the second elastic element 170, can flexibly adjust the contact angle and pressure with the spherical slide plate, making the contact between the support component and the spherical slide plate more closely fit, effectively dispersing the force on the spherical slide plate during the grinding process, avoiding local stress concentration, and improving the stability and grinding quality of the spherical slide plate during the grinding process.

[0081] The second elastic element 170 provides elastic buffer for the rotating support element 160. When the grinding force changes, it can absorb and disperse energy in time, reduce the impact of the grinding force on the spherical skateboard and support components, further protect the surface quality of the spherical skateboard, and also extend the service life of each component of the support components.

[0082] Multiple rotating support members 160 are circumferentially arranged on the central top member 120 and the ring top member 140, which can more evenly support the spherical slide plate. Furthermore, the rotating support members 160 and the spherical slide plate can generate more friction, thereby further ensuring that the spherical slide plate remains stationary during grinding, without rotating or moving, ensuring the uniformity of grinding and guaranteeing the precision and quality of the spherical slide plate. Moreover, the rotating support members 160 do not obstruct the support assembly 1 from supporting the flat slide plate.

[0083] In some examples, the support assembly 1 also includes a linear stop 180 and a third elastic member 190. The linear stop 180 is horizontally slidably disposed on the annular support 110 and consists of two parallel members. One end of the third elastic member 190 acts on the linear stop 180 and the other end acts on the annular support 110, providing a force that brings the two linear stops 180 closer to each other. The two linear stops 180 are used to clamp the flat slide plate, and when clamped, the upper end of the linear stop 180 is lower than the upper surface of the flat slide plate.

[0084] For example, the straight stop 180 is long and narrow, and its length is determined according to the circumference of the annular support 110 and the size of the planar sliding plate. The side of the straight stop 180 that contacts the annular support 110 is machined with a dovetail groove, which cooperates with the dovetail guide rail on the annular support 110 to achieve horizontal sliding.

[0085] The linear stop 180 engages with the dovetail guide rail on the annular support 110 via a dovetail groove, allowing it to slide horizontally on the annular support 110. A limit block is provided on the annular support 110 to restrict the sliding range of the linear stop 180, ensuring that it does not detach from the annular support 110.

[0086] When the two straight stops 180 clamp the flat slide, the upper end of the straight stops 180 is lower than the upper surface of the flat slide. This height setting ensures that the grinding tool will not be interfered with by the straight stops 180 when grinding the flat slide, thus ensuring the smooth progress of the grinding work.

[0087] The third elastic element 190 is a spring, with one end installed in the side groove of the linear stop 180 and the other end installed in the corresponding groove of the annular support 110, ensuring that the spring can stably provide the force for the two linear stops 180 to move closer to each other.

[0088] Before placing the flat slide, the third elastic member 190 is in a naturally extended state, pushing the two straight stops 180 closer together. At this time, the distance between the two straight stops 180 is slightly less than the width of the flat slide to facilitate its placement. The center top member 120 is in an upward-lifted state under the action of the first elastic member 130, and the ring top member 140 is also in an appropriate position under the action of its respective elastic member. The rotating support member 160 is higher than the upper surfaces of the center top member 120 and the ring top member 140 under the action of the second elastic member 170.

[0089] When placing the flat slide, position it on the annular support 110, positioning it between the two linear stops 180. The weight of the flat slide causes the center top member 120 and the annular top member 140 to descend until the flat slide presses against the annular support 110. Simultaneously, the flat slide compresses the two linear stops 180, compressing the third elastic member 190 and causing the linear stops 180 to slide to the sides until the flat slide is fully positioned. At this point, the elastic force of the third elastic member 190 causes the linear stops 180 to tightly clamp the flat slide. Meanwhile, the center top member 120 and the annular top member 140 continue to provide upward support for the flat slide, and the rotating support member 160 also contacts the lower surface of the flat slide, further stabilizing it.

[0090] When sanding a flat skateboard, the sanding tool moves horizontally to sand the skateboard. The straight stop 180, under the action of the third elastic element 190, maintains a constant clamping force on the skateboard, ensuring that the skateboard does not shift laterally during sanding. Because the upper end of the straight stop 180 is lower than the upper surface of the skateboard, the sanding tool can sand the skateboard without obstruction. The center top element 120, the ring top element 140, and the rotating support element 160 work together to ensure the vertical stability of the skateboard, preventing deformation due to sanding force and thus ensuring sanding quality.

[0091] Under the action of the third elastic element 190, the straight stop 180 can tightly clamp the flat slide plate, effectively preventing the flat slide plate from shifting laterally during the grinding process, ensuring the accuracy of the grinding position and improving the grinding precision.

[0092] The design of the straight stop 180° lower than the upper surface of the flat plate ensures that the grinding tool is not obstructed when grinding the flat plate, ensuring smooth grinding work and improving grinding efficiency.

[0093] The straight stop 180 works in conjunction with the center top part 120, the ring top part 140 and the rotating support part 160 to provide stable support for the flat slide plate in both horizontal and vertical directions, reduce the deformation of the flat slide plate caused by grinding force, improve the grinding quality of the flat slide plate, and enable it to better meet the precision requirements of the bridge bearing flat slide plate.

[0094] In some examples, the straight stop 180 has a clearance notch 181 for clearance when the edge of the spherical slide is placed on the annular support 110.

[0095] For example, the clearance notch 181 is provided at both ends of the straight stop 180 to ensure that the straight stop 180 can still effectively clamp the flat slide while making clearance.

[0096] The clearance notches 181 on the two straight stops 180 are positioned opposite each other, allowing the edge of the spherical slide to rest smoothly on the annular support 110, and ensuring that the straight stops 180 do not obstruct the positioning of the spherical slide during placement. This distribution also ensures that the structural strength of the straight stops 180 is not significantly affected when clamping the flat slide, and that sufficient clamping force can still be provided by the third elastic element 190.

[0097] The design of the clearance notch 181 allows the grinding device to be used for grinding both spherical skateboards and flat skateboards, eliminating the need for frequent replacement or adjustment of the straight stop 180, thus improving the versatility of the grinding device and reducing production costs.

[0098] When polishing a spherical skateboard, the clearance notch 181 prevents the straight stop 180 from interfering with the placement of the spherical skateboard, thus ensuring the polishing accuracy of the spherical skateboard. When polishing a flat skateboard, the straight stop 180 can still effectively clamp the flat skateboard through the outer part of the clearance notch 181, preventing it from shifting during the polishing process and ensuring the polishing accuracy of the flat skateboard.

[0099] When placing spherical and flat sliding plates, operators do not need to worry about the straight 180-degree stop obstructing the placement of the sliding plates, which simplifies the operation process, improves the convenience of operation, and thus improves production efficiency.

[0100] In some examples, the polishing assembly 2 includes a movable seat 200, a swing seat 210, a rotating rod 220, and a polishing head 230. The movable seat 200 is configured to be able to move up and down and horizontally. The swing seat 210 is oscillating on the movable seat 200. The rotating rod 220 is rotatably mounted on the swing seat 210. The polishing head 230 follows the rotation of the rotating rod 220 for polishing spherical and flat skateboards. The swing seat 210 swings to change the angle of the polishing head 230.

[0101] For example, the movable base 200 has a horizontal moving guide rail and a horizontal lead screw mechanism installed at its bottom. The lead screw is driven by a servo motor, which can achieve high-precision horizontal movement. The movable base 200 and the horizontal lead screw mechanism can also move up and down along the lifting guide rail under the drive of the lifting lead screw mechanism. The lifting speed can be adjusted according to the grinding requirements to meet the grinding requirements of different heights.

[0102] The swing seat 210 can swing flexibly. The swing of the swing seat 210 is driven by a swing motor. The high-speed rotation of the motor is converted into the slow and precise swing of the swing seat through a reducer. It can be adjusted according to the polishing needs of spherical or flat skateboards.

[0103] The swing of the swing seat 210 can change the angle of the grinding head 230. For example, when grinding a spherical skateboard, the swing angle of the swing seat can be adjusted according to the curvature of the spherical skateboard and the grinding position to maintain the optimal contact angle between the grinding head and the surface of the spherical skateboard, ensuring a uniform grinding effect. When grinding a flat skateboard, the swing seat 210 can be adjusted to a suitable angle to adapt to different grinding process requirements.

[0104] The rotating rod 220 is cylindrical, with one end mounted on the swing seat 210 via a bearing, and the other end connected to the grinding head 230. The rotating rod 220 is driven to rotate by a motor via belt drive, and the motor speed can be adjusted according to the grinding requirements. The bearing between the rotating rod 220 and the swing seat is a high-precision tapered roller bearing, which can withstand large radial and axial loads and ensure the stability of the rotating rod's rotation.

[0105] During rotation, the rotating rod 220 transmits the motor's power to the grinding head 230, causing the grinding head to rotate at high speed for grinding. By adjusting the motor's speed, the grinding speed of the grinding head can be controlled to meet the requirements of different materials and grinding precision.

[0106] The grinding head 230 can be selected from different types depending on the grinding needs, such as a grinding wheel head, a sandpaper head, or a diamond head. The grinding head 230 is fixed to the end of the rotating rod 220 to ensure a secure installation. For example, for coarse grinding, a larger grit grinding wheel head can be selected; for fine grinding, a fine sandpaper head or a diamond head can be selected.

[0107] The grinding head 230 rotates along with the rotating rod 220 to grind both spherical and flat skateboards. During the grinding process, the grinding head contacts the skateboard surface and removes uneven parts of the surface through high-speed rotation, improving the surface quality and precision of the skateboard.

[0108] During polishing, the drive motor of the rotating rod 220 is activated, causing the polishing head 230 to rotate at high speed. The horizontal movement of the movable seat 200 drives the polishing head to reciprocate across the surface of the flat skateboard. During polishing, the moving speed of the movable seat and the rotation speed of the rotating rod can be adjusted according to the material of the flat skateboard and the required polishing precision. For example, for harder flat skateboard materials, the moving speed of the movable seat can be appropriately reduced, and the rotation speed of the rotating rod increased to enhance the polishing effect.

[0109] In some examples, the grinding assembly 2 also includes a slide bar 240 and a fourth elastic element 250. The slide bar 240 is slidably mounted on the rotating rod 220 and rotates with the rotating rod 220. The grinding head 230 is located at the lower end of the rotating rod 220. One end of the fourth elastic element 250 acts on the slide bar 240 and the other end acts on the rotating rod 220, providing a force for the slide bar 240 to slide downward toward the spherical slide plate and the flat slide plate.

[0110] For example, the slide bar 240 is designed as a prism, and its diameter is designed according to the size of the rotating rod 220, smaller than the rotating rod 220, and ensures sufficient sliding stroke within the rotating rod 220.

[0111] The slide rod 240 is slidably mounted inside the rotating rod 220 with a clearance fit. A limit boss is provided at the upper end of the slide rod to prevent it from dislodging from the upper end of the rotating rod. The lower end of the slide rod 240 extends out of the rotating rod 220, and the grinding head 230 is fixed to the lower end of the slide rod by bolts or other suitable connection methods. This design allows the slide rod to rotate with the rotating rod, and at the same time, it can slide along the axial direction of the rotating rod under the action of the fourth elastic element 250.

[0112] The fourth elastic element 250 can be a spring. The fourth elastic element 250 is fitted onto the slide rod 240. One end is tightly against the limiting boss of the slide rod, and the other end acts on the shoulder inside the rotating rod 220. When the slide rod 240 is subjected to an external force to compress the spring upward, the elastic force generated by the spring provides the force for the slide rod to slide downward and approach the spherical slide plate and the flat slide plate.

[0113] Before performing the polishing operation, the polishing head 230 is installed at the lower end of the slide bar 240, with the fourth elastic element 250 in a naturally extended state. The slide bar 240 is pushed downwards, bringing the polishing head 230 closer to the spherical or flat skateboard. By adjusting the moving seat 200, the swing seat 210, and the rotating rod 220, the polishing head 230 is positioned at a suitable starting polishing position, and the polishing head is kept at an appropriate angle to the skateboard surface.

[0114] When grinding the spherical skateboard begins, the rotating rod 220 drives the sliding rod 240 and the grinding head 230 to rotate closer to the surface of the spherical skateboard. Under the action of the fourth elastic element 250, the grinding head 230 makes light contact with the surface of the spherical skateboard. Because the surface of the spherical skateboard is curved, the contact pressure between the grinding head 230 and the skateboard surface changes during the grinding process. When the grinding head encounters a higher part of the spherical skateboard surface, it experiences an upward reaction force, compressing the fourth elastic element 250 and causing the sliding rod 240 to slide upward a certain distance. When the grinding head passes a lower part, the fourth elastic element 250 extends, pushing the sliding rod 240 and the grinding head 230 downward, maintaining contact between the grinding head and the skateboard surface. In this way, the grinding head 230 can automatically adjust its position according to the undulations of the spherical skateboard surface, always maintaining good contact and ensuring even grinding.

[0115] The presence of the fourth elastic element 250 enables the grinding head 230 to adaptively adjust the pressure on the spherical skateboard surface. For example, when grinding the edge area of ​​the spherical skateboard, due to the large change in curvature, the reaction force on the grinding head 230 will also fluctuate significantly. At this time, the fourth elastic element 250 can promptly buffer and adjust the pressure of the grinding head, avoiding damage to the skateboard surface due to excessive pressure or poor grinding effect due to insufficient pressure.

[0116] For sanding a flat skateboard, when the sanding head 230 approaches the surface of the skateboard, it gently contacts the skateboard under the action of the fourth elastic element 250. As the rotating rod 220 rotates, the sanding head 230 begins to sand the skateboard. During the sanding process, there may be some uneven areas on the surface of the skateboard. When the sanding head encounters a protrusion, it will be subjected to an upward force, causing the sliding rod 240 to slide upward and compress the fourth elastic element 250; when passing through a concave area, the fourth elastic element 250 pushes the sliding rod 240 and the sanding head 230 downward, ensuring that the sanding head is always in contact with the surface of the skateboard.

[0117] The elasticity of the fourth elastic element 250 ensures that the pressure of the grinding head 230 is evenly distributed on the surface of the flat skateboard. For example, there may be slight thickness differences in some areas of the flat skateboard due to manufacturing reasons. The fourth elastic element 250 can automatically adjust the position and pressure of the grinding head according to these differences, so that the entire surface of the flat skateboard can be evenly ground, improving the flatness of the flat skateboard.

[0118] The cooperation between the slide bar 240 and the fourth elastic element 250 enables the grinding head 230 to automatically adjust its position and pressure according to the shape changes of the spherical and flat skateboard surfaces, always maintaining good contact with the skateboard surface, effectively improving the uniformity of grinding, and ensuring the flatness and smoothness of the skateboard surface.

[0119] The buffering effect of the fourth elastic element 250 can prevent the grinding head 230 from over-grinding or damaging the surface due to excessive pressure when it encounters uneven parts of the skateboard surface, thus protecting the surface quality of the skateboard and improving the product qualification rate.

[0120] In some examples, the polishing assembly 2 also includes a guide ball head 260, which is rotatably disposed at the lower end of the slide bar 240 and located in the middle of the polishing head 230. The guide ball head 260 is used to abut against the surface of the spherical slide and the flat slide and roll along it. The polishing head 230 has a recess 231 in the middle, and the guide ball head 260 is located in the recess 231.

[0121] For example, the guide ball head 260 is made of a high-hardness, low-friction ceramic material, such as zirconia ceramic. It is spherical in shape and the diameter is designed according to the size of the grinding head 230 to ensure smooth rolling and prevent scratching the surface of the skateboard.

[0122] The guide ball head 260 is rotatably mounted at the lower center of the slide bar 240 via a ball bearing, ensuring that the ball head can rotate 360° flexibly. The recess 231 is located in the middle of the grinding head 230, and is in the shape of a circular groove with a diameter slightly larger than that of the guide ball head 260. A gap of 0.5 to 1 mm is left between the recess 231 and the guide ball head to avoid frictional interference between the two.

[0123] The moving seat 200 drives the grinding component closer to the spherical slide plate. The guide ball head 260 first contacts the surface of the spherical slide plate and rolls with the curved surface of the slide plate. Through the sliding of the slide bar 240 and the angle adjustment of the swing seat 210, it automatically adapts to the curvature of the spherical surface and guides the grinding head 230 to maintain a preset angle with the surface of the slide plate.

[0124] The rotating rod 220 drives the grinding head 230 to rotate, and the fourth elastic element 250 pushes the slide rod 240 to make the grinding head fit against the slide plate. When the grinding head moves with the spherical surface, the guide ball head rolls along the surface to correct the position of the grinding head in real time, avoiding the grinding head from deviating due to the undulation of the surface. At the same time, the protrusion of the ball head ensures that the grinding head always maintains effective grinding pressure.

[0125] The guide ball head 260 contacts and rolls against the flat slide surface. Axial sliding of the slide bar 240 compensates for minor unevenness in the plane, ensuring that the grinding head 230 remains parallel to the plane. The recess 231 provides space for the ball head to move, preventing the grinding head from interfering with the ball head's rolling.

[0126] The elastic force of the fourth elastic element 250 is transmitted to the surface of the slide plate through the slide rod 240 and the guide ball head. The point contact characteristics of the ball head can quickly provide feedback on the plane pressure distribution, so that the slide rod can adjust the height of the grinding head in real time to ensure uniform grinding pressure in all areas of the plane.

[0127] The guide ball head 260 rolls with the surface of the skateboard, guiding the grinding head 230 to conform to the curved or flat surface in real time, reducing grinding deviations caused by manual adjustment errors, improving the curvature accuracy of the spherical skateboard and the flatness of the flat skateboard.

[0128] The guide ball head contacts the slide plate before the grinding head, avoiding surface damage caused by the instantaneous impact of the grinding head; the ceramic material and low friction characteristics reduce the risk of scratches on the slide plate surface, making it especially suitable for high-precision polishing processes.

[0129] The recessed portion 231 prevents the grinding head from directly rubbing against the guide ball head, reducing component wear; the rolling guide of the ball head reduces the sliding friction between the slide rod 240 and the rotating rod 220, extending the equipment maintenance cycle.

[0130] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A polishing device for bridge bearing production for polishing of spherical slide plate and plane slide plate of spherical bearing, characterized in that, The support assembly (1) and the polishing assembly (2) are provided, the polishing assembly (2) is arranged above the support assembly (1) and can be lifted and horizontally moved, the support assembly (1) is used for supporting a spherical slide plate and a plane slide plate, and the support assembly (1) comprises: a base body (100) having a ring-shaped support portion (110) around the base body (100), the ring-shaped support portion (110) is used for supporting the periphery of the spherical slide plate and the periphery of the plane slide plate; a central top piece (120) which is arranged on the base body (100) and is located inside the ring of the ring-shaped support portion (110), the upper surface of the central top piece (120) is a spherical surface, and the central top piece (120) is used for supporting the spherical slide plate and the plane slide plate, wherein the central top piece (120) can be pressed downward by the plane slide plate to be flush with the ring-shaped support portion (110), the edge of the plane slide plate is supported by the ring-shaped support portion (110), and the central top piece (120) is prevented from being too high to enable the plane slide plate to be stably supported on the ring-shaped support portion (110); a first elastic member (130) which acts on the central top piece (120) at one end and acts on the base body (100) at the other end, and provides a force for the central top piece (120) to move upward away from the base body (100); linear stop portions (180) which are arranged on the ring-shaped support portion (110) and are parallel to each other, the linear stop portions (180) have a gap (181) for the edge of the spherical slide plate to be placed in the gap (181) when the edge of the spherical slide plate is placed on the ring-shaped support portion (110); a third elastic member (190) which acts on the linear stop portions (180) at one end and acts on the ring-shaped support portion (110) at the other end, and provides a force for the two linear stop portions (180) to move close to each other, the two linear stop portions (180) are used for clamping the plane slide plate, and the upper end of the linear stop portions (180) is lower than the upper surface of the plane slide plate when the plane slide plate is clamped.

2. The polishing device for bridge support production according to claim 1, characterized in that, The support assembly (1) further comprises: a ring top piece (140) which is arranged on the base body (100) and is in the form of a ring with a spherical upper end, the ring top piece (140) is arranged concentrically with the central top piece (120), the upper surfaces of the ring top pieces (140) and the upper surface of the central top piece (120) are spherical surfaces with equal diameters, and the ring top pieces (140) are used for jointly supporting the concave portion of the spherical slide plate.

3. The polishing device for bridge support production according to claim 2, characterized in that, The support assembly (1) further comprises: A limiting piece (150) is arranged on the base body (100) to limit the upper limit of the upward sliding of the central top piece (120) and the ring top piece (140), and when the spherical slide plate presses on the central top piece (120) and the ring top piece (140), the central top piece (120) can contact the limiting piece (150), and the ring top piece (140) is away from the limiting piece (150) downward.

4. The polishing device for bridge support production according to claim 3, characterized in that, The support assembly (1) further comprises: A rotating support (160) is arranged on the central top piece (120) and the ring top piece (140), and the rotating support (160) is arranged in a plurality of circumferential rows, and the rotating support (160) can be higher than the upper surfaces of the central top piece (120) and the ring top piece (140) after rotation; A second elastic member (170) is arranged at one end of the rotating support (160) and at the other end of the central top piece (120) or the ring top piece (140), and provides a force for the rotating support (160) to rotate upward and away from the central top piece (120) and the ring top piece (140).

5. The polishing device for bridge support production according to claim 1, characterized in that, The polishing assembly (2) comprises: A moving seat (200) is arranged to be capable of lifting and horizontally moving; A swing seat (210) is swingingly arranged on the moving seat (200); A rotating rod (220) is rotatably arranged on the swing seat (210); A polishing head (230) is arranged to rotate with the rotating rod (220) to polish the spherical slide plate and the planar slide plate, and the swing seat (210) is arranged to change the angle of the polishing head (230) after swinging.

6. The polishing device for bridge support production according to claim 5, characterized in that, The polishing assembly (2) further comprises: A sliding rod (240) is slidably arranged on the rotating rod (220) and rotates with the rotating rod (220), and the polishing head (230) is arranged at the lower end of the rotating rod (220); A fourth elastic member (250) is arranged at one end of the sliding rod (240) and at the other end of the rotating rod (220), and provides a force for the sliding rod (240) to slide downward and close to the spherical slide plate and the planar slide plate.

7. The polishing device for bridge support production according to claim 6, characterized in that, The polishing assembly (2) further comprises: A guide ball head (260) is rotatably arranged at the lower end of the sliding rod (240) and located in the middle of the polishing head (230), and the guide ball head (260) is arranged to abut on the surface of the spherical slide plate and the planar slide plate to roll along the surface.

8. The polishing device for bridge support production according to claim 7, characterized in that, The polishing head (230) has a recess (231) in the middle, and the guide ball head (260) is located in the recess (231).

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