Integrated center frame system

Abstract

The invention relates to the technical field of numerical control grinding machines, in particular to an integrated center frame system which can reduce occupied space, reduce use cost and improve working efficiency and comprises a base, and an arc box turnover mechanism, a center frame mounting platform and a soft landing device are sequentially arranged on the base side by side. A positioning plate and at least two positioning pin holes are arranged on the center frame mounting platform, a dynamic pressure center frame or a static pressure center frame is mounted on the center frame mounting platform, oil return ports in the dynamic pressure center frame and the static pressure center frame are consistent in position and same in model, corresponding oil return pipes are arranged on the center frame mounting platform, and oil return ports in the dynamic pressure center frame and the static pressure center frame are communicated with the oil return pipes. The soft landing device comprises an oil cylinder installation base, a vertically-arranged oil cylinder is installed on the oil cylinder installation base, a piston rod of the oil cylinder is connected with a lifting base, and a cushion block is installed in a V-shaped opening of the lifting base through a bolt.

Description

Technical Field

[0001] The invention relates to the technical field of numerically controlled grinding machines, in particular to an integrated center frame system. Background Art

[0002] In the nonferrous metal industry and nonferrous metal industry, CNC roll grinders use dynamic pressure center frames and static pressure center frames. The static pressure integrated center frame is used when grinding the support roll, and the dynamic pressure integrated center frame is used when grinding the working roll. The traditional structure is that the arc turning mechanism, dynamic pressure center frame, static pressure center frame, and soft landing device are set up separately, which occupies a large space, has high machine tool use costs, is inconvenient to operate, and has low efficiency. Summary of the invention

[0003] In order to solve the above problems, the present invention provides an integrated center frame system, which can reduce occupied space, reduce use costs, and improve work efficiency.

[0004] The technical solution is as follows: an integrated center frame system, characterized in that it includes a base, on which an arc box turning mechanism, a center frame mounting platform, and a soft landing device are arranged side by side in sequence, a positioning plate and at least two positioning pin holes are arranged on the center frame mounting platform, a dynamic pressure center frame or a static pressure center frame is installed on the center frame mounting platform, the return oil ports on the dynamic pressure center frame and the static pressure center frame are in the same position and have the same model, a corresponding return oil pipe is opened on the center frame mounting platform, and the soft landing device includes a cylinder mounting seat, a vertically arranged cylinder is installed on the cylinder mounting seat, the piston rod of the cylinder is connected to a lifting seat, and a pad is installed in the V-shaped opening of the lifting seat by bolts.

[0005] It is further characterized in that the positioning plate includes a side positioning plate and a rear positioning plate disposed at one corner of the center frame mounting platform; A guide column is installed on the oil cylinder mounting seat, and a guide sleeve matched with the guide column is arranged on the lifting seat; The arc box turning mechanism comprises a left support seat and a right support seat, wherein the left support seat and the right support seat are provided with a crescent plate, the upper plane section of the crescent plate is provided with two positioning rods, the lower arc section of the crescent plate is supported on the cam guides of the left support seat and the right support seat, the lower arc section of the crescent plate is also provided with a chain, the right support seat is provided with a sprocket wheel matched with the outer side of the chain, and the sprocket wheel is connected with a motor; The positioning rod is mounted on the upper plane section of the crescent plate by means of screws; Two support bearings are installed on the static pressure center frame, the lower part of the support bearings cooperates with the first wedge block, and the first wedge block is connected to the adjusting screw; The contact surface between the first wedge and the support shoe is an arc-shaped surface; An upper slider and a lower slider are provided on the dynamic pressure center frame. The upper slider is directly connected to the upper lead screw. The lower portion of the lower slider cooperates with a second wedge block, and the second wedge block is connected to the lower lead screw.

[0006] After adopting the present invention, a dynamic pressure center frame or a static pressure center frame can be installed on the center frame mounting platform, and can be hoisted and replaced according to needs. The pads on the soft landing device can also be easily replaced. The arc box turning mechanism, the dynamic pressure center frame, the static pressure center frame, and the soft landing device are integrated together, which reduces the occupied space and reduces the use cost. The replacement operation can be conveniently completed by using the positioning plate and the positioning pin. The return oil ports on the dynamic pressure center frame and the static pressure center frame are in the same position and have the same model, and share a common return oil pipeline. There is no need to repeatedly install and disassemble the return oil pipe during rapid model change, and the installation is convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a structural schematic diagram of the static pressure center frame installed in the present invention; Figure 2 This is a structural schematic diagram of the present invention when the dynamic pressure center frame is installed; Figure 3 is a schematic diagram of the base structure; Figure 4 It is a schematic diagram of the structure of the circular arc box turning mechanism; Figure 5 for Figure 4 Middle AA section view; Figure 6 This is a schematic diagram of the soft landing device structure; Figure 7 It is a schematic diagram of the static pressure center frame structure; Figure 8 for Figure 7 Middle BB section; Fig. 9 It is a schematic diagram of the structure of the dynamic pressure center frame. DETAILED DESCRIPTION

[0008] See Figures 1 to 9 As shown, an integrated center frame system includes a base 1, on which an arc box turning mechanism 2, a center frame mounting platform 3, and a soft landing device 4 are arranged side by side in sequence. A positioning plate and two positioning pin holes are arranged on the center frame mounting platform 3. The positioning plate includes a side positioning plate 4 and an end positioning plate 5 which are arranged at one corner of the center frame mounting platform 3. A dynamic pressure center frame 6 or a static pressure center frame 7 is installed on the center frame mounting platform 3. When the dynamic pressure center frame 6 or the static pressure center frame 7 is interchanged, two positioning pins 13 are respectively designed on the bottom surfaces of the dynamic pressure center frame 6 and the static pressure center frame 7 for positioning accuracy. In order to facilitate positioning and installation, side positioning plates 24 and end positioning plates 5 are respectively designed on the center frame mounting platform 3 to guide hoisting without the need for people to bend over to observe whether the positioning pins are aligned.

[0009] The oil return ports 8 on the dynamic pressure center frame 6 and the static pressure center frame 7 are in the same position and of the same type. Corresponding oil return pipes are provided on the center frame mounting platform, which unify the oil return ports and share the oil return pipes. There is no need to repeatedly install and remove the oil return pipes during rapid model change, which makes installation easy and efficient.

[0010] The soft landing device 4 includes a cylinder mounting seat 9, on which a vertically arranged cylinder 10 is mounted. The piston rod of the cylinder 10 is connected to a lifting seat 11. A pad 12 is installed in the V-shaped opening of the lifting seat 11 by bolts. The pad 12 can be replaced with other pads of different thicknesses as needed. 22 in the figure is a position sensor.

[0011] A guide column 13 is installed on the oil cylinder mounting seat 9, and a guide sleeve 14 cooperating with the guide column is arranged on the lifting seat 11 to ensure the stability of lifting.

[0012] The arc box turning mechanism 2 includes a left support seat 2-1 and a right support seat 2-2, and a crescent plate 2-3 is arranged on the left support seat 2-1 and the right support seat 2-2. The upper plane section of the crescent plate 2-3 is equipped with two positioning rods 2-4, which can be replaced by screw installation. The lower arc section of the crescent plate 2-3 is supported by the cam guide 2-5 of the left support seat 2-1 and the right support seat 2-2. The lower arc section of the crescent plate 2-3 is also equipped with a chain 2-6. The right support seat 2-2 is equipped with a sprocket wheel 2-7 that cooperates with the outer side of the chain 2-6, and the sprocket wheel 2-7 is connected to the motor 2-8. The motor 2-8 drives the sprocket chain pair to rotate, so that the crescent plate 2-3 rotates 90 degrees counterclockwise to realize the 90-degree turning function of the bearing box, prevents it from interfering with the grinding wheel, and adopts a high-precision cam guide as the rotation reference surface. The cam guide has an eccentricity to prevent the crescent plate from getting stuck or blocking.

[0013] Two support bearings 15 are installed on the static pressure center frame 7. The lower part of the support bearing 15 cooperates with the first wedge block 16. The first wedge block 16 is connected to the adjusting screw 17. The first wedge block 16 is adjusted by adjusting the adjusting screw 17, and the support bearing 15 is lifted and lowered by cooperating on the wedge surface. The contact surface between the first wedge block 16 and the support bearing 15 is an arc surface, which can realize the self-positioning function.

[0014] An upper slider 18 and a lower slider 19 are provided on the dynamic pressure center frame 6. The upper slider 18 is directly connected to the upper lead screw 20. The lower part of the lower slider 19 cooperates with the second wedge block 23. The second wedge block 23 is connected to the lower lead screw 21. The upper slider 18 and the lower slider 19 can be adjusted by using the upper lead screw 20 and the lower lead screw 21.

[0015] The present invention redesigns and integrates multiple functional modules into one, using a static pressure integrated center frame when grinding the support roller and a dynamic pressure integrated center frame when grinding the working roller. When the machine tool has finished grinding the support roller and wants to grind the working roller, it only needs to remove the static pressure center frame and hoist the dynamic pressure center frame, and then replace the two pads on the soft landing device. The arc box turning mechanism and the base remain unchanged, saving the machine tool cost and increasing the work efficiency.

Claims

1. An integrated center frame system, characterized in that: It includes a base, on which a circular arc box turning mechanism, a center frame mounting platform, and a soft landing device are arranged side by side in sequence, a positioning plate and at least two positioning pin holes are arranged on the center frame mounting platform, a dynamic pressure center frame or a static pressure center frame is installed on the center frame mounting platform, the return oil ports on the dynamic pressure center frame and the static pressure center frame are in the same position and have the same model, a corresponding return oil pipe is opened on the center frame mounting platform, and the soft landing device includes a cylinder mounting seat, on which a vertically arranged cylinder is installed, the piston rod of the cylinder is connected to a lifting seat, and a pad is installed in the V-shaped opening of the lifting seat by bolts.

2. An integrated center frame system according to claim 1, characterized in that: The positioning plate includes a side positioning plate and a rear positioning plate which are arranged at one corner of the center frame mounting platform.

3. The integrated center frame system according to claim 1, characterized in that: A guide column is installed on the oil cylinder mounting seat, and a guide sleeve matched with the guide column is arranged on the lifting seat.

4. The integrated center frame system according to claim 1, characterized in that: The arc box turning mechanism includes a left support seat and a right support seat, and a crescent plate is arranged on the left support seat and the right support seat, and two positioning rods are installed on the upper plane section of the crescent plate, and the lower arc section of the crescent plate is supported on the cam guide of the left support seat and the right support seat, and a chain is also installed on the lower arc section of the crescent plate, and a sprocket matching with the outer side of the chain is installed on the right support seat, and the sprocket is connected to the motor.

5. The integrated center frame system according to claim 4, characterized in that: The positioning rod is mounted on the upper plane section of the crescent plate by means of screws.

6. The integrated center frame system according to claim 1, characterized in that: Two support shoes are installed on the static pressure center frame. The lower part of the support shoe cooperates with the first wedge block, and the first wedge block is connected with the adjusting screw.

7. An integrated center frame system according to claim 6, characterized in that: The contact surface between the first wedge block and the support shoe is an arc-shaped surface.

8. The integrated center frame system according to claim 1, characterized in that: An upper slider and a lower slider are provided on the dynamic pressure center frame. The upper slider is directly connected to the upper lead screw. The lower portion of the lower slider cooperates with a second wedge block, and the second wedge block is connected to the lower lead screw.

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