Roller shaft shoulder hole processing positioning device

Abstract

The utility model relates to roll shaft shoulder part hole processing technical field, specifically disclose a kind of roll shaft shoulder part hole processing positioning device, including bottom plate and roll, the upside of bottom plate is provided with steering mechanism, clamping fixed structure, movable positioning mechanism and automatic drilling mechanism, steering mechanism includes the fixed seat of fixed connection in the upper end of bottom plate, the upper end of fixed seat is rotatably connected with rotary table, and installation slot is passed through and established in the front end of fixed seat. When using, the roll is placed in the first arc slot of support seat, so that its end surface and the positioning plate are pasted, initial positioning is completed, so that the hole depth is effectively controlled, the consistency of all processing hole depth and the accuracy of position are guaranteed, after one end center hole processing is completed, servo motor drives rotary table to rotate one hundred and eighty degrees, makes roll unprocessed end automatic rotation to processing position, can directly carry out the drilling operation of another end, so that the hole processing of roll two ends can be completed by once clamping, without midway unloading and re-clamping.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill shoulder hole processing technology, and specifically discloses a rolling mill shoulder hole processing positioning device. Background Technology

[0002] The workpiece is clamped and fixed on the worktable, and then drilled using a drill bit. However, this method has significant drawbacks: First, after machining the center hole at one end, the workpiece needs to be unloaded, rotated, and re-clamped and aligned before drilling can begin at the other end. Multiple clamping operations not only reduce production efficiency but also increase the workload for operators. Second, traditional clamping methods mostly focus on providing sufficient clamping force to prevent workpiece movement, lacking an effective positioning structure along the length of the roll axis. This makes it difficult to accurately control the drill bit's feed depth during drilling, easily leading to inconsistent hole depths or inaccurate relative positions between the drill bit and the roll end face, severely affecting machining quality.

[0003] Therefore, a positioning device for machining the shoulder hole of the roll shaft is needed to solve the above problems. Utility Model Content

[0004] This utility model proposes a positioning device for machining holes on the shoulder of a roll shaft, which can complete the machining of holes at both ends of the roll in one clamping, without the need for unloading and re-clamping midway; at the same time, it can position the roll in the length direction, thereby effectively controlling the feed depth of the drill bit and ensuring the consistency of hole depth machining and the accuracy of machining position.

[0005] This utility model is implemented as follows: a positioning device for machining holes on the shoulder of a roll shaft, including a base plate and a roll, wherein a steering mechanism, a clamping and fixing structure, a movable positioning mechanism and an automatic drilling mechanism are provided on the upper side of the base plate.

[0006] The steering mechanism includes a fixed base fixedly connected to the upper end of the base plate, a turntable rotatably connected to the upper end of the fixed base, an installation groove through the front end of the fixed base, a first servo motor with a brake installed inside the installation groove and whose output end is fixedly connected to the turntable, a support base fixedly connected to the upper end of the turntable, and a first arc-shaped groove that fits against the outer wall of the roll at the upper end of the support base.

[0007] The clamping and fixing structure includes a frame fixedly connected to the upper end of the support base. The inner wall of the frame is provided with a lifting block. The lower end of the lifting block is provided with a second arc-shaped groove that fits against the outer wall of the roll. A hydraulic cylinder is installed at the upper end of the frame. The output end of the hydraulic cylinder passes through the upper end of the frame and is fixedly connected to the lifting block with a pressure sensor.

[0008] The movable positioning mechanism includes a rotating shaft rotatably connected to the outer wall of the support base. A cavity is provided through the outer wall of the frame. A second servo motor with a brake is installed inside the cavity and its output end is fixedly connected to the rotating shaft. A positioning plate that fits against the right end of the roller is fixedly connected to the right end of the rotating shaft.

[0009] As a preferred embodiment of the roller shaft shoulder hole machining and positioning device of this utility model, the automatic drilling mechanism includes a vertical plate fixedly connected to the upper end of the base plate, a servo electric actuator installed at the right end of the vertical plate, the output end of the servo electric actuator passing through the vertical plate and fixedly connected to a moving plate, a housing fixedly connected to the left end of the moving plate, a connector rotatably connected to the left end of the housing, a drill bit installed at the left end of the connector, and a drive motor whose output end is fixedly connected to the connector is installed inside the housing.

[0010] As a preferred embodiment of the positioning device for machining the shoulder hole of the roll shaft according to this utility model, the upper end of the lifting block is fixedly connected to two first sliding rods that pass through the frame and are slidably connected to the frame.

[0011] As a preferred embodiment of the positioning device for machining the shoulder hole of the roll shaft according to this utility model, the outer wall of the frame is equipped with an operation panel and a controller.

[0012] As a preferred embodiment of the positioning device for machining the shoulder hole of the roll shaft according to this utility model, the right end of the moving plate is fixedly connected to two second slide rods that penetrate the vertical plate and are slidably connected to the vertical plate.

[0013] As a preferred embodiment of the positioning device for machining the shoulder hole of the roll shaft according to this utility model, the bottom plate is fixedly connected to the left and right ends of the bottom plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. First, the operator places the roll in the first arc-shaped groove of the support base, ensuring its end face aligns with the positioning plate, thus completing the initial positioning. Subsequently, the servo motor drives the rotating shaft to rotate, causing the positioning plate to rotate away from the roll's end face. This process ensures the initial positioning of the roll along its axial length, providing an accurate reference for subsequent drill bit feeding, thereby effectively controlling the hole depth and guaranteeing the consistency and accuracy of the depth and position of all machined holes.

[0016] 2. Subsequently, the hydraulic cylinder drives the lifting block to press down, clamping and fixing the roll together with the support base. After the center hole at one end is machined, the servo motor drives the turntable to rotate 180 degrees, automatically moving the unmachined end of the roll to the machining position, allowing direct drilling of the other end. This enables the machining of holes at both ends of the roll in a single clamping operation, eliminating the need for unloading and reclamping midway. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a front sectional view of the overall structure of the positioning device for machining the shoulder hole of a roll shaft according to this utility model.

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a partial structural diagram of the present invention;

[0021] Figure 4 This is a partial structural diagram of the present invention.

[0022] The markings in the diagram are: 1. Base plate; 2. Fixed base; 3. Mounting slot; 4. First servo motor; 5. Turntable; 6. Support base; 7. First arc-shaped groove; 8. Roller; 9. Frame; 10. Hydraulic cylinder; 11. Pressure sensor; 12. Lifting block; 13. Second arc-shaped groove; 14. Cavity; 15. Second servo motor; 16. Rotating shaft; 17. Positioning plate; 18. Vertical plate; 19. Servo electric actuator; 20. Moving plate; 21. Housing; 22. Drive motor; 23. Connector; 24. Operation panel; 25. Controller. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-4 A positioning device for machining holes on the shoulder of a roll shaft includes a base plate 1 and a roll 8. The upper side of the base plate 1 is provided with a steering mechanism, a clamping and fixing structure, a movable positioning mechanism, and an automatic drilling mechanism.

[0025] The steering mechanism includes a fixed base 2 fixedly connected to the upper end of the base plate 1. A turntable 5 is rotatably connected to the upper end of the fixed base 2. A mounting groove 3 is opened through the front end of the fixed base 2. A first servo motor 4 with a brake is installed inside the mounting groove 3. A support base 6 is fixedly connected to the upper end of the turntable 5. A first arc-shaped groove 7 that fits against the outer wall of the roll 8 is opened at the upper end of the support base 6.

[0026] The clamping and fixing structure includes a frame 9 fixedly connected to the upper end of the support base 6. The inner wall of the frame 9 is provided with a lifting block 12. The lower end of the lifting block 12 is provided with a second arc-shaped groove 13 that fits against the outer wall of the roll 8. A hydraulic cylinder 10 is installed at the upper end of the frame 9. The output end of the hydraulic cylinder 10 passes through the upper end of the frame 9 and is fixedly connected to the lifting block 12 with a pressure sensor 11.

[0027] The movable positioning mechanism includes a rotating shaft 16 rotatably connected to the outer wall of the support base 6, a cavity 14 extending through the outer wall of the frame 9, a second servo motor 15 with a brake installed inside the cavity 14 and whose output end is fixedly connected to the rotating shaft 16, and a positioning plate 17 that fits against the right end of the roller 8 is fixedly connected to the right end of the rotating shaft 16.

[0028] In this embodiment: First, the operator places the roll 8 to be processed into the first arc-shaped groove 7 at the upper end of the support base 6. The right end of the roll 8 is then aligned with the left end of the positioning plate 17, which positions the roll 8. Next, the second servo motor 15 is activated, driving the rotating shaft 16 to rotate 90 degrees, thereby causing the positioning plate 17 to rotate 90 degrees with the shaft 16, separating the positioning plate 17 from the right end of the roll 8. At this point, the center of the turntable 5 is vertically aligned with the center of the roll 8. This allows for positioning of the roll 8 along its length, providing an accurate reference for subsequent drill bit feeding, effectively controlling the drill bit's feed depth, and ensuring consistency in hole depth processing and accuracy of the processing position.

[0029] Subsequently, the hydraulic cylinder 10 is activated, pushing the lifting block 12 downwards. Through the combined action of the second arc-shaped groove 13 and the first arc-shaped groove 7 at its lower end, the roll 8 is clamped and fixed. During this process, the pressure sensor 11 can monitor the pressure in real time. When the pressure reaches the set threshold, the hydraulic cylinder 10 stops operating to prevent excessive pressure from damaging the workpiece or insufficient pressure from causing loosening during processing.

[0030] The center hole at one end is then machined using an automatic drilling mechanism. After one end is machined, the automatic drilling mechanism resets, and the first servo motor 4 drives the turntable 5 to rotate 180 degrees. The turntable 5, through the upper support 6, moves the clamped and fixed roller 8 together, turning the unmachined end of the roller 8 to the right. The center hole at the other end is then machined using the automatic drilling mechanism. This allows the machining of the holes at both ends of the roller 8 to be completed in a single clamping operation, without the need for unloading and re-clamping midway.

[0031] As a technical optimization of this utility model, the automatic drilling mechanism includes a vertical plate 18 fixedly connected to the upper end of the base plate 1. A servo electric actuator 19 is installed at the right end of the vertical plate 18. The output end of the servo electric actuator 19 passes through the vertical plate 18 and is fixedly connected to a moving plate 20. A housing 21 is fixedly connected to the left end of the moving plate 20. A connector 23 is rotatably connected to the left end of the housing 21. A drill bit is installed at the left end of the connector 23. A drive motor 22 with its output end fixedly connected to the connector 23 is installed inside the housing 21.

[0032] In this embodiment: the drive motor 22 is started, driving the connector 23 and the drill bit mounted on its left end to rotate at high speed. At the same time, the servo electric actuator 19 starts working, pushing the moving plate 20 and the connected housing 21 to move smoothly to the left, so that the rotating drill bit feeds towards the end face of the roller 8 to process the center hole.

[0033] As a technical optimization of this utility model, the upper end of the lifting block 12 is fixedly connected to two first sliding rods that pass through the frame 9 and are slidably connected to the frame 9.

[0034] In this embodiment, by setting two first sliding rods, the stability of the lifting block 12 moving up and down is improved.

[0035] As a technical optimization of this utility model, the outer wall of the frame 9 is equipped with an operation panel 24 and a controller 25.

[0036] In this embodiment: the operator can input commands or parameters through the operation panel 24. After receiving the commands, the controller 25 controls the operation of the first servo motor 4, the second servo motor 15, the hydraulic cylinder 10 and the servo electric actuator 19. The controller 25 also receives the feedback signal from the pressure sensor 11 and controls the action of the hydraulic cylinder 10.

[0037] As a technical optimization of this utility model, the right end of the movable plate 20 is fixedly connected to two second sliding rods that penetrate the vertical plate 18 and are slidably connected to the vertical plate 18.

[0038] In this embodiment, the stability of the movement of the moving plate 20 is improved by setting two second slide bars.

[0039] As a technical optimization of this utility model, mounting plates are fixedly connected to both the left and right ends of the base plate 1.

[0040] In this embodiment, the device can be fixed in place by setting two mounting plates.

[0041] The working principle and usage process of this utility model are as follows: First, the operator places the roll 8 to be processed into the first arc-shaped groove 7 at the upper end of the support base 6. The right end of the roll 8 is then aligned with the left end of the positioning plate 17, which positions the roll 8. Next, the second servo motor 15 is activated, driving the rotating shaft 16 to rotate 90 degrees, thereby causing the positioning plate 17 to rotate 90 degrees with the shaft 16, separating the positioning plate 17 from the right end of the roll 8. At this point, the center of the turntable 5 is vertically aligned with the center of the roll 8. This allows for positioning of the roll 8 along its length, providing an accurate reference for subsequent drill bit feeding, effectively controlling the drill bit's feed depth, and ensuring consistency in hole depth processing and accuracy of the processing position.

[0042] Subsequently, the hydraulic cylinder 10 is activated, pushing the lifting block 12 downwards. Through the combined action of the second arc-shaped groove 13 and the first arc-shaped groove 7 at its lower end, the roll 8 is clamped and fixed. During this process, the pressure sensor 11 can monitor the pressure in real time. When the pressure reaches the set threshold, the controller 25 controls the hydraulic cylinder 10 to stop moving, preventing excessive pressure from damaging the workpiece or insufficient pressure from causing loosening during processing.

[0043] Subsequently, the drive motor 22 is started, driving the connector 23 and the drill bit mounted on its left end to rotate at high speed. At the same time, the servo electric actuator 19 starts working, pushing the moving plate 20 and the connected housing 21 to move smoothly to the left, so that the rotating drill bit feeds towards the end face of the roller 8, completing the machining of the center hole at one end.

[0044] After one end is machined, the drill bit retracts to the initial position to the right. Then, the first servo motor 4 drives the turntable 5 to rotate 180 degrees. The turntable 5, through the upper support 6, moves the clamped and fixed roller 8 together, turning the unmachined end of the roller 8 to the right. Then, the drill bit moves to the left while rotating to machine the center hole. This allows the machining of the holes at both ends of the roller 8 to be completed in a single clamping, without the need for unloading and reclamping midway.

[0045] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A positioning device for machining holes in the shoulder of a rolling mill shaft, comprising a base plate (1) and a rolling mill roll (8), characterized in that: The upper side of the base plate (1) is provided with a steering mechanism, a clamping and fixing structure, a movable positioning mechanism and an automatic drilling mechanism; The steering mechanism includes a fixed seat (2) fixedly connected to the upper end of the base plate (1), a turntable (5) rotatably connected to the upper end of the fixed seat (2), an installation groove (3) is provided through the front end of the fixed seat (2), a first servo motor (4) with a brake is installed inside the installation groove (3) and its output end is fixedly connected to the turntable (5), a support seat (6) is fixedly connected to the upper end of the turntable (5), and a first arc-shaped groove (7) is provided at the upper end of the support seat (6) to fit against the outer wall of the roll (8). The clamping and fixing structure includes a frame (9) fixedly connected to the upper end of the support base (6). The inner wall of the frame (9) is provided with a lifting block (12). The lower end of the lifting block (12) is provided with a second arc-shaped groove (13) that fits against the outer wall of the roll (8). A hydraulic cylinder (10) is installed at the upper end of the frame (9). The output end of the hydraulic cylinder (10) passes through the upper end of the frame (9) and is fixedly connected to the lifting block (12) with a pressure sensor (11). The movable positioning mechanism includes a rotating shaft (16) rotatably connected to the outer wall of the support base (6). A cavity (14) is provided through the outer wall of the frame (9). A second servo motor (15) with a brake is installed inside the cavity (14) with its output end fixedly connected to the rotating shaft (16). A positioning plate (17) that fits against the right end of the roller (8) is fixedly connected to the right end of the rotating shaft (16).

2. The positioning device for machining the shoulder hole of a roll shaft according to claim 1, characterized in that: The automatic drilling mechanism includes a vertical plate (18) fixedly connected to the upper end of the base plate (1). A servo electric actuator (19) is installed at the right end of the vertical plate (18). The output end of the servo electric actuator (19) passes through the vertical plate (18) and is fixedly connected to a moving plate (20). A housing (21) is fixedly connected to the left end of the moving plate (20). A connector (23) is rotatably connected to the left end of the housing (21). A drill bit is installed at the left end of the connector (23). A drive motor (22) whose output end is fixedly connected to the connector (23) is installed inside the housing (21).

3. The positioning device for machining the shoulder hole of a roll shaft according to claim 1, characterized in that: The upper end of the lifting block (12) is fixedly connected to two through frames (9) and slidably connected to the frame (9).

4. The positioning device for machining the shoulder hole of a roll shaft according to claim 1, characterized in that: An operation panel (24) and a controller (25) are installed on the outer wall of the frame (9).

5. The positioning device for machining the shoulder hole of a roll shaft according to claim 2, characterized in that: The right end of the movable plate (20) is fixedly connected to two second sliding rods that pass through the vertical plate (18) and are slidably connected to the vertical plate (18).

6. The positioning device for machining the shoulder hole of a roll shaft according to claim 1, characterized in that: Mounting plates are fixedly connected to both the left and right ends of the base plate (1).

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