Grinding machine center device for roller grinding

Abstract

The utility model relates to the related technical field of grinding machine centers, in particular to a grinding machine center device for roller grinding, which comprises a mounting component, a center adjusting component, a center adjusting component and a center adjusting component, the center body is arranged at the upper end of the mounting assembly and comprises a column body and a contact block, the column body is used for being connected with the mounting assembly and transmitting supporting force, and the contact block is arranged at one end of the column body and used for making contact with a roller; according to the center, the center body is integrally split into two separable modules, namely the contact block and the column body, by means of an inserting connection mode, when the contact block is abraded due to continuous friction with a roller in frequent roller grinding operation, the abraded contact block part can be singly replaced, the whole center does not need to be replaced, the replacement difficulty is reduced, and the replacement efficiency is improved. In addition, a contact block with a specific shape, which is high in upper surface fitting degree and capable of realizing fine grinding, can be replaced according to different types of rollers.

Description

Technical Field

[0001] This utility model relates to the technical field of grinding machine tips, and in particular to a grinding machine tip device for rolling mill grinding. Background Technology

[0002] In the roll grinding process, the grinding machine center device plays a key role. Its working principle is based on high-precision axial positioning and stable support. By tightly fitting the center with the center holes at both ends of the roll, the roll is stably supported on the grinding machine worktable. During the grinding process, the center device must not only bear the weight of the roll itself, but also cope with the radial and axial components of the grinding force to ensure that the roll always stays on the precise axis of rotation, thereby achieving high-precision grinding.

[0003] Application No. 202221068765.5 discloses a grinding machine tailstock center that can reduce machining resistance, including a horizontal plate, a positioning ring, a center body, a limiting device, and a contact block. The positioning ring is located on the top of the horizontal plate, the center body is located inside the positioning ring, the limiting device is located on the outer wall of the positioning ring, and the contact block is located at one end of the center body. The positioning ring, located on the top of the horizontal plate, provides a stable placement space for the center body. The center body, located inside the positioning ring, plays a core role in supporting the roller during operation. The limiting device, located on the outer wall of the positioning ring, can effectively limit the movement range of the center body and ensure its working stability. The contact block, installed at one end of the center body, directly contacts the roller, reducing machining resistance during grinding.

[0004] However, during operation, the contact block constantly rubs against the roll during frequent roll grinding. As the usage time increases, the contact block gradually wears down. However, the contact block and the tip body are designed as an inseparable whole structure. Once the contact block wears down, it is not possible to replace only the worn contact block part. Instead, the entire tip must be replaced, which is not only complicated to disassemble but also takes a long time. In addition, different types of rolls have differences in shape and material, requiring contact blocks of different shapes to achieve the best grinding effect. However, the existing device cannot flexibly replace contact blocks of different shapes according to the actual situation of the roll, which greatly limits its adaptability to diverse roll processing. Utility Model Content

[0005] The purpose of this invention is to provide a grinding center device for rolling mill grinding to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] A grinding machine center device for grinding rolls, characterized in that it comprises:

[0008] The mounting components, connected to the grinding machine via mounting parts, are used to securely mount the entire center device onto the grinding machine.

[0009] The top body is disposed at the upper end of the mounting assembly. The top body includes a column and a contact block. The column is used to connect the mounting assembly and transmit support force. The contact block is disposed at one end of the column and is used to contact the roll to provide support and positioning for the roll.

[0010] A protective component is disposed on the outside of the tip body for protecting the tip body;

[0011] A connection structure is provided at the connection between the column and the contact block to realize a detachable connection between the column and the contact block. The connection structure includes a plug-in assembly and a screw-tightening assembly. The plug-in assembly initially realizes the connection between the contact block and the column, and the screw-tightening assembly further tightens the connection after insertion.

[0012] Optionally, the plug-in assembly includes:

[0013] A groove is formed at the end of the column near the contact block;

[0014] The socket is fixedly installed on the inner surface wall of the slot.

[0015] A slot, formed inside the socket;

[0016] An insert block is disposed at the end of the contact block near the column body, and the insert block is inserted into the slot and the block groove;

[0017] A groove is formed on the inner surface wall of the insert block;

[0018] An insert is embedded inside the groove.

[0019] Optionally, the screw-on fastening assembly includes:

[0020] The screw-on fastening assembly includes:

[0021] The disc block is rotatably disposed in a pre-reserved slot in the column and is located at one end of the slot.

[0022] Multiple toothed blocks are fixedly arranged equidistantly and evenly on the outer wall of the disc block;

[0023] Multiple grooves are evenly and continuously formed on the outer wall of the disc block;

[0024] Multiple sliding rods are respectively slidably disposed inside the multiple sliding grooves;

[0025] Multiple connecting plates are respectively fixedly installed at one end of multiple sliding rods, one end of the insert is fixedly connected to the outer wall of the connecting plate, and the connecting plate is slidably connected to the slot reserved in the column.

[0026] A worm gear is disposed at the lower end of the disc block and meshes with a plurality of the tooth blocks;

[0027] Two fixed blocks are symmetrically arranged at both ends of the worm, and the worm is rotatably connected to one of the fixed blocks;

[0028] An end block is embedded in a groove pre-drilled on the outer wall of the column, and one end of the end block passes through one of the fixing blocks and is fixedly connected to the worm gear.

[0029] Optionally, the insert includes:

[0030] A T-shaped ring block is fixedly installed at one end of the contact block near the column.

[0031] A retaining ring block is connected to the end of the T-shaped ring block away from the contact block.

[0032] Optionally, an elastic connection component is provided at the connection between the T-shaped ring block and the retaining ring block, the elastic connection component comprising:

[0033] The movable groove is formed inside the retaining ring block;

[0034] An elastic connecting block is connected inside the movable groove, and the free end of the elastic connecting block is connected to the T-shaped ring block.

[0035] Optionally, the protective component includes:

[0036] The protective components include:

[0037] The outer shell is fitted over the outside of the column.

[0038] The front cover is connected to one end of the outer casing by connecting screws;

[0039] The rear cover is connected to the other end of the outer casing by connecting screws, and the rear cover is located at the rear end of the column.

[0040] Optionally, the installation components include:

[0041] A fixing block is fitted onto the outer wall of the outer shell;

[0042] A fixing bracket is fixedly connected to the lower end face of the fixing sleeve block;

[0043] The slider is fixedly connected to the lower end face of the fixed frame, and the outer wall of the slider is threaded with fixing bolts;

[0044] The slide rail is slidably connected to the inside of the slider, and multiple screw holes are provided on one side of the outer wall of the slide rail for use with fastening bolts.

[0045] Optionally, a radial thrust bearing and an end face thrust bearing are sequentially connected to the outside of the column, and the radial thrust bearing and the end face thrust bearing are located inside the outer shell.

[0046] Optionally, the upper end of the disc block is provided with an oil injection component, which consists of an oil hopper, an oil outlet pipe, and a plug. The oil hopper and the oil outlet pipe are embedded inside the column, and the plug is embedded in the inlet of the oil hopper.

[0047] Compared with the prior art, the beneficial effects of this utility model are:

[0048] By setting an insert block at the end of the contact block near the column and setting a precisely fitted connector inside the column, after the insert block is inserted, a tool is used to insert one end into the slot opened in the end block. Then, the tool is turned to drive the worm gear to rotate. At this time, the worm gear meshes with the toothed block of the disc block. The disc block rotates, causing its slide bar to slide from the lowest end of the slide groove to the highest end, causing the connecting plate to expand outward. As it expands, the insert block is precisely embedded in the slot. In this utility model, by using the plug-in connection method, the main body of the tip is split from a whole into two separable modules: the contact block and the column. When the contact block wears due to continuous friction with the roll during frequent roll grinding operations, only the worn contact block part can be replaced, without replacing the entire tip, reducing the difficulty of replacement. In addition, according to different types of rolls, a specific shape of contact block with high upper surface fit and capable of fine grinding can be replaced, which can greatly improve the grinding effect, ensure the stable quality of the processed roll, and enhance the adaptability of the tip device in diverse roll processing scenarios. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the overall structure of this application;

[0051] Figure 2 This is a schematic diagram showing the connection between the top-level main body and the outer shell in this application;

[0052] Figure 3 This is a schematic diagram of the connection between the column and the contact block in this application;

[0053] Figure 4 This is an enlarged schematic diagram of the connection structure in this application;

[0054] Figure 5 This is a schematic diagram showing the connection structure located inside the column in this application;

[0055] Figure 6 This is an enlarged schematic diagram of the screw-on fastening assembly in this application;

[0056] Figure 7 This is one of the schematic diagrams of the screw-on fastening assembly in this application;

[0057] Figure 8 This is the second schematic diagram of the screw-on fastening assembly in this application;

[0058] Figure 9 This is a cross-sectional view of the insert block in this application;

[0059] Figure 10 This is an enlarged schematic diagram of the flexible connection component in this application.

[0060] Figure label:

[0061] 1. Top-mounted main body; 11. Column; 12. Contact block;

[0062] 2. Outer shell; 3. Front cover; 4. Rear cover; 5. Fixing block; 6. Fixing bracket; 7. Slider; 8. Slide rail;

[0063] 9. Connection structure; 91. Block groove; 92. Socket; 93. Slot; 94. Insert block; 941. T-shaped ring block; 942. Snap ring block; 95. Insert groove; 96. Insert block; 911. Disc block; 912. Tooth block; 913. Slide groove; 914. Slide rod; 915. Connecting plate; 916. Worm gear; 917. Fixing block; 918. End block;

[0064] 10. Flexible connection component; 101. Movable groove; 102. Flexible connection block;

[0065] 13. Radial thrust bearing; 14. End face thrust bearing; 15. Oil injection component. Detailed Implementation

[0066] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, 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 utility model.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] Given that in the current technology, the contact block will continuously rub against the roll during frequent roll grinding operations, and gradually wears down with the increase of usage time, but the contact block and the tip body are designed as an inseparable whole structure, once the contact block is worn, it is not possible to replace only the worn contact block part, but the entire tip must be replaced, which is not only more complicated to disassemble, but also takes a long time to disassemble.

[0069] like Figure 1-2 As shown, this utility model embodiment provides a grinding machine center device for rolling mill grinding, including a mounting assembly, a center body 1, and a protective assembly.

[0070] The mounting assembly is connected to the grinding machine via mounting parts to securely mount the entire center device on the grinding machine. The center body 1 is located at the upper end of the mounting assembly. The center body 1 includes a column 11 and a contact block 12. The column 11 is used to connect the mounting assembly and transmit support force. The contact block 12 is located at one end of the column 11 and is used to contact the roll to provide support and positioning for the roll. The protective assembly is located outside the center body 1 and is used to protect the center body 1. The protective assembly includes a shell 2, a front cover 3, and a rear cover 4. The shell 2 is fitted over the outside of the column 11. The front cover 3 is connected to one end of the shell 2 by connecting screws. The rear cover 4 is connected to the other end of the shell 2 by connecting screws and is located at the rear end of the column 11.

[0071] Furthermore, the mounting components include a fixing sleeve 5, a fixing bracket 6, a slider 7, and a slide rail 8. The fixing sleeve 5 is fitted onto the outer wall of the housing 2. The fixing bracket 6 is fixedly connected to the lower end face of the fixing sleeve 5. The slider 7 is fixedly connected to the lower end face of the fixing bracket 6. The outer wall of the slider 7 is threaded with fixing bolts. The slide rail 8 is slidably connected to the inside of the slider 7. One side of the outer wall of the slide rail 8 has multiple screw holes for use with fastening bolts.

[0072] Furthermore, a radial thrust bearing 13 and an end face thrust bearing 14 are sequentially connected to the outside of the column 11, and the radial thrust bearing 13 and the end face thrust bearing 14 are located inside the outer casing 2.

[0073] When using the grinding machine to grind the roll, first fix one end of the roll to the grinding machine, then push the fixing frame 6 with the electric push rod so that the slider 7 slides outside the slide rail 8 fixed to the grinding machine. This causes the fixing frame 6 to move the center body 1 toward the roll until the contact block 12 of the center body 1 contacts the other end of the roll and inserts into the hole of the roll. Finally, tighten the fixing bolt. The connecting end of the fixing bolt is screwed into the screw hole of the slide rail 8 to prevent the center body 1 from being displaced due to external forces such as grinding force during the grinding process, and to ensure that the roll maintains a stable support state throughout the entire grinding operation.

[0074] Furthermore, in order to allow for the replacement of only the worn contact block 12 without replacing the entire tip, and to allow for the replacement of contact blocks 12 with a specific shape that has a high surface fit and can achieve fine grinding, depending on the type of roll, the tip device also includes a connecting structure 9.

[0075] Specifically, such as Figure 2-6 As shown, the connection structure 9 is set at the connection between the column 11 and the contact block 12 to realize the detachable connection between the column 11 and the contact block 12. The connection structure 9 includes a plug-in assembly and a screw-tightening assembly. The plug-in assembly initially realizes the connection between the contact block 12 and the column 11, and the screw-tightening assembly further tightens the connection after insertion.

[0076] Furthermore, the plug-in assembly includes a block groove 91, a socket 92, a slot 93, a plug 94, a recess 95, and a plug 96. The block groove 91 is formed at the end of the column 11 near the contact block 12. The socket 92 is fixedly disposed on the inner surface wall of the block groove 91. The slot 93 is formed inside the socket 92. The plug 94 is disposed at the end of the contact block 12 near the column 11. The plug 94 is inserted into the slot 93 and the block groove 91. The recess 95 is formed on the inner surface wall of the plug 94. The plug 96 is embedded inside the recess 95.

[0077] Furthermore, such as Figures 5-8As shown, the screw-fastening assembly includes a disc block 911, multiple toothed blocks 912, multiple sliding grooves 913, multiple sliding rods 914, multiple connecting plates 915, a worm gear 916, two fixing blocks 917, and an end block 918. The disc block 911 is rotatably disposed in a pre-reserved slot in the column 11 and is located at one end of the slot 91. Multiple toothed blocks 912 are equidistantly and evenly fixed on the outer wall of the disc block 911. Multiple sliding grooves 913 are evenly and continuously opened on the outer wall of the disc block 911. Multiple sliding rods 914 are respectively slidably disposed inside the multiple sliding grooves 913. Multiple connecting plates 915, multiple toothed blocks 916, two fixing blocks 917, and two end blocks 918. 15 are respectively fixedly installed at one end of multiple sliding rods 914. One end of the insert 96 is fixedly connected to the outer wall of the connecting plate 915. The connecting plate 915 is slidably connected to the slot reserved in the column 11. The worm 916 is installed at the lower end of the disc block 911 and meshes with multiple tooth blocks 912. Two fixing blocks 917 are symmetrically installed at both ends of the worm 916. The worm 916 is rotatably connected to one of the fixing blocks 917. The end block 918 is embedded in the groove reserved in the outer wall of the column 11. One end of the end block 918 passes through one of the fixing blocks 917 and is fixedly connected to the worm 916.

[0078] In use, the contact block 12 is brought close to the column 11, so that the insert 94 is inserted into the block groove 91 and precisely embedded into the slot 93, realizing the initial connection between the contact block 12 and the column 11 by the plug-in assembly. Then, a tool is inserted into the slot on the end block 918, and the end block 918 is rotated to drive the worm 916 to rotate. The worm 916 meshes with the toothed block 912 on the disc block 911, causing the disc block 911 to rotate. As the disc block 911 rotates, the slide rod 914 slides in the slide groove 913, causing the connecting plate 915 to expand outward, so that the insert 96 is embedded in the inner wall of the insert 94. In the groove 95, the tightening operation of the screw fastening component is completed, and the column 11 and the contact block 12 are firmly connected. When the contact block 12 is worn in the rolling mill grinding, the above process can be reversed to easily disassemble and replace it. This connection structure 9 allows the contact block 12 to be replaced separately without replacing the entire tip, which reduces maintenance costs. At the same time, it can quickly replace the contact block 12 with a suitable shape according to the characteristics of different rolling mills. For example, replacing it with a contact block 12 with a high surface fit can achieve fine grinding, which greatly improves the adaptability and processing quality of the tip device to diverse rolling mill processing.

[0079] Specifically, such as Figure 9 As shown, the insertion block 94 includes a T-shaped ring block 941 and a retaining ring block 942. The T-shaped ring block 941 is fixedly disposed at one end of the contact block 12 near the column 11, and the retaining ring block 942 is connected to the end of the T-shaped ring block 941 away from the contact block 12.

[0080] Specifically, such as Figure 10As shown, an elastic connection component 10 is provided at the connection between the T-shaped ring block 941 and the retaining ring block 942. The elastic connection component 10 includes a movable groove 101 and an elastic connection round block 102. The movable groove 101 is opened inside the retaining ring block 942, and the elastic connection round block 102 is connected inside the movable groove 101. The free end of the elastic connection round block 102 is connected to the T-shaped ring block 941.

[0081] In use, when the contact block 12 contacts the roll and during the grinding process, vibrations and impacts are generated due to the rotation of the roll, the elastic connecting block 102 undergoes elastic deformation in the movable groove 101, buffering and absorbing the vibration and impact energy. On the one hand, this reduces the impact of vibration and impact on the centering device and the entire grinding system, making the grinding process smoother, thereby improving the grinding surface quality, reducing equipment wear and failure rate, and extending equipment service life. On the other hand, it avoids excessive pressure from the contact block 12 on the roll surface, preventing scratches or pressure damage to the roll surface during positioning, effectively protecting the roll surface quality, and ensuring the processing accuracy and quality of the roll.

[0082] Specifically, such as Figure 3 As shown, the upper end of the disc block 911 is provided with an oil injection component 15, which consists of an oil hopper, an oil outlet pipe and a plug. The oil hopper and the oil outlet pipe are embedded inside the column body 11, and the plug is embedded in the inlet of the oil hopper.

[0083] When it is necessary to lubricate the toothed block 912 and worm 916 of the disc block 911, the plug is opened and lubricating oil is injected into the oil hopper. Then, it flows to the toothed block 912 through the oil outlet pipe. This can effectively reduce the friction between the toothed block 912 and the worm 916, reduce the degree of wear, and extend the service life of the components. At the same time, good lubrication helps to improve the smoothness of the operation of the connecting structure 9, making the tightening and disassembly operations easier and more convenient, and ensuring that the top device maintains stable and reliable working performance during frequent use.

[0084] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grinder center apparatus for roll grinding, characterized by, The utility model relates to a kind of top center device, including: Mounting assembly, is connected with grinding machine by mounting piece, for whole top center device is firmly mounted on grinding machine; Top center body, is arranged in the upper end of the mounting assembly, the top center body includes cylinder and contact block, the cylinder is used to connect mounting assembly and transmit support force, the contact block is arranged in one end of the cylinder, for contact with roll, and support and positioning effect is provided for roll; Protective assembly, is arranged outside the top center body, for the protection of the top center body; Connecting structure, is arranged in the connection of the cylinder and the contact block, for realizing the detachable connection between the cylinder and the contact block, the connecting structure includes plug-in assembly and screw fastening assembly, the plug-in assembly preliminary realizes the connection of the contact block and the cylinder, and the screw fastening assembly is further fastened after insertion connection.

2. A roll grinder centering device according to claim 1, characterized in that The plug-in assembly includes: Block slot, is opened in the end of the cylinder close to the contact block; Socket, is fixedly arranged on the inner surface wall of the block slot; Insertion slot, is opened in the inside of the socket; Insertion block, is arranged in the end of the contact block close to the cylinder, and the insertion block is inserted in the inside of insertion slot and block slot; Embedded slot, is opened on the inner surface wall of the insertion block; Embedded block, is embedded in the inside of the embedded slot.

3. A roll grinder centering device according to claim 2, characterized in that The screw fastening assembly includes: The screw fastening assembly includes: Disc block, is rotationally arranged in the empty slot reservedly opened in the cylinder, and is arranged in one end of the block slot; Multiple tooth blocks, are equidistantly and uniformly fixedly arranged on the outer surface wall of the disc block; Multiple sliding grooves, are uniformly and throughly opened on the outer surface wall of the disc block; Multiple sliding rods, are respectively and correspondingly slidingly arranged in the inside of multiple sliding grooves; Multiple connecting plates, are respectively and correspondingly fixedly arranged in one end of multiple sliding rods, one end of the embedded block is fixedly connected with the outer surface wall of the connecting plate, and the connecting plate is slidingly connected with the empty slot reservedly opened in the cylinder; Worm, is arranged in the lower end of the disc block, and is engaged with multiple tooth blocks; Two fixed blocks, are symmetrically arranged in two ends of the worm, and the worm is rotationally connected with one of the fixed blocks; End block, is embedded in the recess reservedly opened on the outer surface wall of the cylinder, and one end of the end block penetrates one of the fixed blocks and is fixedly connected with the worm.

4. A roll grinder centering device according to claim 3, characterized in that The insertion block includes: T-shaped ring block, is fixedly arranged in one end of the contact block close to the cylinder; Clasp ring block, is connected to one end of the T-shaped ring block away from the contact block.

5. A roll grinder centering device according to claim 4, characterized in that Elastic connection assembly is arranged at the connection of the T-shaped ring block and the clasp ring block, and the elastic connection assembly includes: Movable slot, is opened in the inside of the clasp ring block; Elastic connection disc block, is connected in the inside of the movable slot, and the free end of the elastic connection disc block is connected with the T-shaped ring block.

6. A roll grinder centering device according to claim 1, wherein The protective assembly includes: Shell, is sleeved on the outside of the cylinder; Front cover, is connected in one end of the shell by connecting screw; Rear cover, is connected in the other end of the shell by connecting screw, and the rear cover is arranged in the rear end of the cylinder.

7. A roll grinder centering device according to claim 6, characterized in that The mounting assembly includes: Fixed sleeve block, is sleeved on the outer surface wall of the shell; Fixed frame, is fixedly connected in the lower end surface of the fixed sleeve block; A sliding block is fixedly connected to the lower end surface of the fixed frame, and a fixing bolt is threadedly connected to the outer surface wall of the sliding block; A sliding rail is slidingly connected to the inside of the sliding block, and a plurality of screw holes for cooperating with the fixing bolt are formed on one side of the outer surface wall of the sliding rail.

8. A roll grinder centering device according to claim 1, wherein The outside of the column is sequentially connected with a radial thrust bearing and an end face thrust bearing, and the radial thrust bearing and the end face thrust bearing are arranged in the inside of the shell.

9. A roll grinder centering device according to claim 3, wherein An oil injection part is arranged at the upper end of the disc block, and the oil injection part is composed of an oil tank, an oil outlet pipe and a plug, the oil tank and the oil outlet pipe are embedded in the inside of the column, and the plug is embedded in the inlet port of the oil tank.

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