Corrugated roller boring jig

Abstract

This utility model relates to a boring fixture for corrugated rollers, including a main fixture and a secondary fixture. The main fixture is used to fix the shaft head of the corrugated roller, and the secondary fixture is used to support the roller body of the corrugated roller. The secondary fixture is radially provided with lower, lower left, and lower right support units, which support the lower, lower left, and lower right sides of the corrugated roller. The shaft head of the corrugated roller is fixed by the main fixture, and the roller body of the corrugated roller is fixed by the secondary fixture. The lower support plate, the lower left support plate, and the lower right support plate are driven synchronously towards the corrugated roller by a linear drive mechanism. Since the positioning pins are distributed along the axial direction of the corrugated roller on the support plates, and the ends of the positioning pins are provided with spherical surfaces, the support plates can drive the positioning pins to be inserted into the gaps between the teeth of the corrugated roller, so that the positioning pins directly contact the outer circumferential surfaces of the teeth of the corrugated roller, so that the positioning pins provide support force to the corrugated roller through the positioning pins, and avoid the pressure teeth on the corrugated roller from contacting the center frame.

Description

Technical Field

[0001] This utility model relates to a tooling for boring corrugated rollers. Background Technology

[0002] Corrugated rolls are typically hollow (for weight reduction, heating, or cooling), and both ends need to be precisely machined with holes for mounting bearings. For such large and precision parts as corrugated rolls, the bearing holes at both ends require extremely high coaxiality and dimensional accuracy to ensure smooth roll operation and reduce vibration and wear. Boring tools are used to enlarge existing holes on the workpiece and finish the inner surface of the holes to achieve high dimensional accuracy (diameter, roundness), shape accuracy (cylindricity), and positional accuracy (coaxiality, parallelism). To finish the corrugated rolls, positioning components, clamping components, and support components are needed to ensure accurate, efficient, and safe boring at both ends of the corrugated rolls.

[0003] The existing process for boring the two ends of a corrugated roll involves using a crane to lift the roll's shaft head onto a V-shaped positioning block for positioning. A nut and screw then engage a pressure plate to clamp the shaft head, securing both ends of the roll. A guide rail moves a center frame or auxiliary support device to the center of the roll, providing support and preventing bending due to the roll's weight. However, the center frame directly contacts the roll's pressure teeth for support. When the boring tool is used to machine the holes at both ends of the roll's shaft head, vibrations cause wear between the pressure teeth and the center frame. Because the pressure teeth on the corrugated roll are relatively thin, long-term wear can lead to insufficient contact between the center frame and some pressure teeth, affecting the support and potentially causing the roll to bend under its own weight, thus impacting the accuracy of the boring process. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for boring corrugated rollers, so as to solve the technical problem that the pressure teeth of corrugated rollers are easily damaged due to wear.

[0005] The technical solution of this utility model is as follows: it includes a main clamp and a secondary clamp. The main clamp is used to fix the shaft head of the corrugated roller, and the secondary clamp is used to support the roller body of the corrugated roller. The secondary clamp is radially provided with lower, lower left and lower right support units. The lower, lower left and lower right support units are used to support the lower, lower left and lower right sides of the corrugated roller. The lower unit includes a linear drive mechanism. The output end of the linear drive mechanism is fixedly provided with a support plate. At least two positioning columns are provided on the support plate along the axial direction of the corrugated roller. The ends of the positioning columns are provided with spherical surfaces. The linear drive mechanism drives the support plate to approach the outer circumference of the corrugated roller, thereby driving the positioning columns to insert into the gap between the teeth of the corrugated roller to support the corrugated roller. The other end of the positioning column is provided with an equidistant adjustment mechanism.

[0006] The equidistant adjustment mechanism includes a rotating rod that moves radially along the corrugated roller. A movable plate is rotatably fitted at the end of the rotating rod. The movable plate is provided with multiple equally spaced through slots. The through slots are inclined and in the same direction. A connecting rod with an axis perpendicular to the axis of the rotating rod is slidably fitted in the through slot. The connecting rod is connected to a positioning post and drives the rotating rod to move along its own axis. Through the cooperation of the through slot and the connecting rod, the distance between two adjacent positioning posts can be adjusted at equal intervals along the axial direction of the corrugated roller, so as to adapt to different tooth pitches of corrugated rollers of the same diameter.

[0007] The support plate has a threaded hole coaxial with the rotating rod, and the outer surface of the rotating rod has an external thread. The rotating rod moves along its own axis through the threaded engagement of the external thread and the internal thread.

[0008] The support plate has a groove along the axial direction of the corrugated roller, and multiple equally spaced sliders slide in the groove. The sliders are fixedly connected to the positioning post to ensure that the positioning post moves horizontally along the axial direction of the corrugated roller.

[0009] The spherical surfaces of the positioning posts are coated with a high-hardness and high-precision coating to ensure that the positioning posts are in full rigid contact with the corrugated rollers.

[0010] The auxiliary clamp includes a support platform with a radially arranged moving groove. A push rod moves radially along the support platform within the moving groove. The push rod is L-shaped, with one end fixedly connected to a cylinder and the other end fixedly connected to a support plate. The cylinder slides along the moving groove via the push rod, pushing the support plate closer to the corrugated roller.

[0011] The beneficial effects of this technical solution are as follows: When using the corrugated roller boring fixture, the main clamp fixes the shaft head of the corrugated roller, and the auxiliary clamp fixes the roller body. The lower support plate, the lower left support plate, and the lower right support plate are driven synchronously towards the corrugated roller by the linear drive mechanism. Since the positioning pins are distributed along the axial direction of the corrugated roller on the support plate, and the ends of the positioning pins are provided with spherical surfaces, the support plate can drive the positioning pins to be inserted into the gap between the teeth of the corrugated roller, so that the positioning pins directly contact the outer circumferential surface of the teeth of the corrugated roller. This allows the positioning pins to provide support force to the corrugated roller, avoiding contact between the pressure teeth on the corrugated roller and the center frame, and preventing the corrugated roller from bending due to its own weight, which would affect the boring accuracy. Since the other end of the positioning pin is provided with an equidistant adjustment mechanism, the distance between two adjacent positioning pins can be adjusted by the equidistant adjustment mechanism. Furthermore, since the tooth pitch on corrugated rollers of the same diameter is different, the distance between the positioning pins can be adjusted by the equidistant adjustment mechanism to adapt to the different tooth pitches of corrugated rollers of the same diameter. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the structural components of a specific embodiment of the corrugated roller boring tool of this utility model. Figure 2 This is a specific embodiment of the corrugated roller boring tool of this utility model. Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of a cross-section of the structural support plate of a specific embodiment of the corrugated roller boring tool of this utility model (showing the cooperation between the positioning column and the corrugated roller); Figure 4 This is a specific embodiment of the present utility model. Figure 3 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of a cross-sectional view of the structural support plate of a specific embodiment of the corrugated roller boring tool of this utility model (showing the cooperation between the rotating rod and the connecting rod); Figure 6 This is a schematic diagram of a cross-section of the structural support plate (showing the slide groove and slider structure) of a specific embodiment of the corrugated roller boring tool of this utility model.

[0013] In the diagram: 1. Workbench; 2. Fixture; 3. Fixing rod; 4. Main clamp; 5. Support platform; 6. Support plate; 7. Corrugated roller; 8. Push rod; 9. Cylinder; 11. Rotating rod; 12. Positioning column; 13. Moving plate; 14. Threaded hole; 15. Connecting rod; 16. Sliding groove; 17. Slider; 18. Sliding groove; 19. Ball bearing. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0015] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0016] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0017] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0018] A specific embodiment of the corrugated roller boring tool of this utility model is as follows: Figure 1-4As shown, the device includes a main clamp 4 and a secondary clamp. The main clamp 4 and secondary clamp are fixed to a fixed frame 2 via a fixing rod 3. The fixed frame 2 is slidably fitted onto the worktable 1. After the corrugated roller 7 is bored, the main clamp 4 and secondary clamp can be moved away as a whole by moving the fixed frame 2, making it convenient for the operator to use. The main clamp 4 is slidably fitted onto the worktable 1 and is symmetrically arranged on both sides of the corrugated roller 7 shaft head to ensure uniform support for the corrugated roller 7. By horizontally moving the main clamp 4, the spacing of the main clamp 4 can be changed to accommodate corrugated rollers 7 of different lengths. The clamp 4 includes an upper positioning block and a lower positioning block. The lower positioning block has a V-shaped groove along the axial direction of the corrugated roller 7, and the surface of the V-shaped groove is provided with the corrugated roller 7. The upper positioning block is fixedly connected to a screw, and the lower positioning block is sleeved on the screw. A nut is threaded onto the screw. The main clamp 4 is used to fix the shaft head of the corrugated roller 7, and the secondary clamp is used to support the roller body of the corrugated roller 7. The secondary clamp is radially provided with lower, lower left, and lower right support units, which support the lower, lower left, and lower right sides of the corrugated roller 7. The lower unit includes a linear drive mechanism, which includes cylinders 9. Three cylinders 9 are arranged radially along the secondary clamp to control the synchronous radial movement of the cylinders. The principle is as follows: All cylinders are supplied with air from the same source. Compressed air travels through a main pipeline to an air distribution block. This distribution block distributes the air as symmetrically, equidistantly, and equally long and symmetrically as possible to the branches leading to each cylinder. A three-position five-way (5 / 3) or three-position four-way (4 / 3) solenoid valve controls the simultaneous action (extension / retraction / stop) of all cylinders. The valve outlet is connected to the rodless chamber (for extension) and rod chamber (for retraction) of all cylinders through the distribution block. A position sensor (such as a magnetostrictive displacement sensor, linear potentiometer, LVDT, encoder) is installed on each cylinder. The sensor transmits the piston rod position in real time. The signal is sent to the controller (dedicated motion controller), which receives the position feedback signal, compares the actual position of all cylinders with the target position, calculates the synchronization error (a cylinder is ahead or behind), and sends a control signal to the control valve. The output end of the linear motion mechanism is fixedly equipped with a support plate 6. At least two positioning posts 12 are provided on the support plate 6 along the axial direction of the corrugated roller 7. The end of the positioning post 12 is provided with a spherical surface. The linear motion mechanism drives the support plate 6 to approach the outer circumference of the corrugated roller 7, causing the positioning posts 12 to be inserted into the gap between the teeth of the corrugated roller 7 to support the corrugated roller 7. The other end of the positioning post 12 is provided with an equidistant adjustment mechanism.

[0019] The equidistant adjustment mechanism includes a rotating rod 11 that moves radially along the corrugated roller 7. One end of the rotating rod 11 extends to the outside of the support plate 6. The cross-section of the rotating rod 11 is T-shaped. A movable plate 13 is rotatably fitted at the end of the rotating rod 11. A ball bearing 19 coaxial with the rotating rod 11 is provided on the movable plate 6. The inner ring of the ball bearing 19 is fixedly connected to the rotating rod 11, and the outer ring of the ball bearing 19 is fixedly connected to the movable plate 6. The movable plate 13 is provided with multiple equally spaced through slots. The through slots are sliding slots 16. There are three through slots. The through slots are inclined and in the same direction. A connecting rod 15 with an axis perpendicular to the axis of the rotating rod 11 is slidably fitted in the through slot. The connecting rod 15 is connected to the positioning post 12. Through the cooperation of the through slot and the connecting rod 15, the distance between two adjacent positioning posts 12 can be adjusted at equal intervals along the axial direction of the corrugated roller 7 to adapt to different tooth pitches of the corrugated roller 7 with the same diameter.

[0020] The support plate 6 has a threaded hole 14 coaxial with the rotating rod 11. The outer surface of the rotating rod 11 has an external thread. The rotating rod 11 moves along its own axis by engaging with the internal thread.

[0021] The support plate 6 has a groove 18 along the axial direction of the corrugated roller 7. Multiple equally spaced sliders 17 slide in the groove 18. The sliders 17 are fixedly connected to the positioning post 12 to ensure that the positioning post 12 moves horizontally along the axial direction of the corrugated roller 7.

[0022] The spherical surfaces on the positioning post 12 are coated with a high-hardness and high-precision coating. The high-hardness and high-precision coating is a nanostructure / nanocomposite coating, which ensures that the positioning post 12 is in full rigid contact with the corrugated roller 7.

[0023] The auxiliary fixture includes a support platform 5, which has a radially arranged moving groove. A push rod 8 moves radially along the support platform 5 within the moving groove. The push rod 8 is L-shaped, with one end fixedly connected to a cylinder 9 and the other end fixedly connected to a support plate 6. The cylinder 9 pushes the push rod 8 to slide along the moving groove, pushing the support plate 6 closer to the corrugated roller 7.

[0024] In use, based on the length of the corrugated roller 7, the lower positioning block and support platform 5 are moved on the worktable 1 through the cooperation of the fixed frame 2 and the fixed rod 3. The support platform 5 is fixed to the fixed frame 2 with bolts and nuts. The lifting equipment is used to bring the shaft head of the corrugated roller 7 into contact with the surface of the V-groove of the lower positioning block, so that the upper positioning block is sleeved on the screw. By tightening the nut, the upper positioning block is moved closer to the outer circumference of the shaft head of the corrugated roller 7. The shaft head is clamped by the upper and lower positioning blocks. The cylinder 9 is started simultaneously. Through the cooperation of the push rod 8 and the moving groove, the support plate 6 can be moved closer to the corrugated roller 7. At the same time, the rotating rod 11 is rotated. The outer surface of the rotating rod 11 has external threads and a threaded hole 14 that mates with the external threads. The rotating rod 11 is driven to move along its own axis, which can move the moving plate 13. Since the moving plate 13 is equipped with The device has multiple inclined through slots, and because the connecting rod 15 is slidably mounted on the through slots, the connecting rod 15 slides along the inclined through slot surface. Since the slider 17 is fixedly connected to the connecting rod 15, the slider 17 can be driven to follow the connecting rod 15 and move at equal intervals along the axial direction of the corrugated roller 7. Since the slider 17 is fixedly connected to the positioning post 12, the positioning post 12 corresponds to the tooth gap on the surface of the corrugated roller 7. The positioning post 12 is driven by the cylinder 9 to insert into the tooth gap of the corrugated roller 7. The positioning post 12 is provided with a spherical surface, which makes the positioning post 12 and the outer peripheral surface of the teeth of the corrugated roller 7 in close contact, so that the positioning post 12 and the outer peripheral surface of the teeth of the corrugated roller 7 are in direct contact. The positioning post 12 provides support force for the corrugated roller 7, and avoids the pressure teeth on the corrugated roller 7 from contacting the center frame. The corrugated roller 7 bends due to its own weight, which affects the accuracy of the boring process.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A boring fixture for corrugated rollers, comprising a main fixture and a secondary fixture, wherein the main fixture is used to fix the shaft end of the corrugated roller, and the secondary fixture is used to support the roller body of the corrugated roller, characterized in that, The auxiliary clamp is radially provided with lower, lower left, and lower right support units. These support units support the lower, lower left, and lower right sides of the corrugated roller, respectively. The lower unit includes a linear drive mechanism. A support plate is fixedly mounted on the output end of the linear drive mechanism. At least two positioning posts are mounted on the support plate along the axial direction of the corrugated roller. The ends of the positioning posts are provided with spherical surfaces. The linear drive mechanism drives the support plate to approach the outer circumference of the corrugated roller, causing the positioning posts to insert into the gap between the teeth of the corrugated roller to support the corrugated roller. An equidistant adjustment mechanism is provided at the other end of the positioning posts.

2. The corrugated roller boring fixture according to claim 1, characterized in that, The equidistant adjustment mechanism includes a rotating rod that moves radially along the corrugated roller. A movable plate is rotatably fitted at the end of the rotating rod. The movable plate is provided with a plurality of equally spaced through slots. The through slots are inclined and in the same direction. A connecting rod with an axis perpendicular to the axis of the rotating rod is slidably fitted in the through slot. The connecting rod is connected to a positioning post.

3. The corrugated roller boring fixture according to claim 1, characterized in that, The lower left support unit and the lower right support unit are symmetrically arranged on the auxiliary clamp to ensure that the lower left and lower right sides of the corrugated roll can be evenly supported.

4. The corrugated roller boring fixture according to claim 2, characterized in that, The support plate has a threaded hole coaxial with the rotating rod, and the outer surface of the rotating rod has an external thread.

5. The corrugated roller boring fixture according to claim 1, characterized in that, The support plate has a groove along the axial direction of the corrugated roller, and multiple equally spaced sliders slide in the groove. The sliders are fixedly connected to the positioning post.

6. The corrugated roller boring fixture according to claim 1, characterized in that, The spherical surfaces on the positioning posts are all coated with a high-hardness and high-precision coating.

7. The corrugated roller boring fixture according to claim 1, characterized in that, The auxiliary clamp includes a support platform, and the support platform is radially provided with a moving groove. A push rod moves radially along the support platform within the moving groove. The push rod is L-shaped, one end of the push rod is fixedly connected to a cylinder, and the other end of the push rod is fixedly connected to a support plate.

Images