Support milling tool

Abstract

The invention discloses a support milling tool which comprises a base and a platform, the platform is provided with at least one machining station and a positioning mechanism, the positioning mechanism is arranged corresponding to the machining station and used for positioning a part to be machined on the platform, and the base is provided with a rotator used for driving the platform to rotate. The rotating device is fixedly connected with the platform, the platform is provided with a vertically-through object falling window corresponding to each machining station, and a conveying mechanism is arranged at the position, corresponding to the object falling windows, between the platform and the base. The conveying mechanism is used for enabling waste generated during part machining to fall onto the conveying mechanism through the object falling window and then to be conveyed away from the base, the support milling tool can synchronously mill a plurality of workpieces, clamping is stable, and the milled waste and parts can be collected.

Description

Technical Field

[0001] This invention relates to the field of milling tool technology, specifically to a bracket milling fixture. Background Technology

[0002] The bracket milling fixture is a key device in machining to fix the workpiece and ensure milling accuracy. Existing bracket milling fixtures can process a single workpiece, but the process requires several different steps to complete the milling. After milling, the workpiece needs to be manually removed. If a worker accidentally activates the machine while removing the workpiece, it can easily cause injury, posing a certain risk. Existing bracket milling fixtures typically use flat-jaw vises to clamp workpieces, which can only hold part of the side, easily leading to machining vibration. Even for the same type of workpiece, there may be some dimensional deviation. The clamping components of existing bracket milling fixtures cannot be adjusted, and they cannot stably position the components, requiring manual adjustment, which can reduce machining efficiency and lacks versatility. Summary of the Invention

[0003] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a bracket milling fixture to solve the problems mentioned in the background art, such as the inability to mill multiple workpieces simultaneously, poor clamping stability, inability to collect milling waste, and inconvenience in handling milled workpieces.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a bracket milling fixture, comprising a base and a platform, wherein at least one machining station and a positioning mechanism are provided on the platform, the positioning mechanism being provided corresponding to the machining station and used to position the parts to be machined on the platform, a rotator being provided on the base for driving the platform to rotate, the rotator being fixedly connected to the platform, and a vertically penetrating drop window being provided on the platform for each machining station, and a conveying mechanism being provided between the platform and the base corresponding to the drop window position, the conveying mechanism being used to drop waste generated during the machining of parts through the drop window onto the conveying mechanism and then send it away from the base.

[0005] As a further improvement of the present invention, the positioning mechanism includes a positioning seat, a first positioning block disposed in front of the positioning seat, and a second positioning block disposed behind the positioning seat. The first positioning block is used to position the workpiece to be processed from front to back toward the direction of the positioning seat, and the second positioning block is used to position the workpiece to be processed from back to front in cooperation with the first positioning block.

[0006] As a further improvement of the present invention, the first positioning block includes a first planar end and a first arcuate end, the second positioning block includes a second planar end and a second arcuate end, and a plurality of robotic arms are arranged on the platform. There is a gap between the first planar end and the corresponding robotic arm for swinging the first planar end on the robotic arm, a gap between the second planar end and the corresponding robotic arm for swinging the second planar end on the robotic arm, a gap between the first arcuate end and the corresponding robotic arm for swinging the first arcuate end on the robotic arm, and a gap between the second arcuate end and the corresponding robotic arm for swinging the second arcuate end on the robotic arm.

[0007] As a further improvement of the present invention, the positioning mechanism includes a first floating cylinder and a second floating cylinder. The first floating cylinder is fixedly connected to the platform through a cylinder seat, and the second floating cylinder is fixedly connected to the positioning seat. The first floating cylinder abuts against the outer wall of the part to be processed and can press the part to be processed toward the positioning seat. The second floating cylinder abuts against the inner wall of the part to be processed and can pull the inner wall at the front position of the part to be processed toward the positioning seat.

[0008] As a further improvement of the present invention, the first arc-shaped end has a first arc-shaped wall that can abut against the first arc-shaped surface on the part to be processed, and the second arc-shaped end has a second arc-shaped wall that can abut against the second arc-shaped surface on the part to be processed.

[0009] As a further improvement of the present invention, the conveying mechanism includes a conveyor belt, which is arranged corresponding to the position of the drop window, and is used to convey the parts after they fall from the drop window.

[0010] As a further improvement of the present invention, the conveyor belt has a plurality of anti-slip points for preventing waste material on the conveyor belt from sliding.

[0011] As a further improvement of the present invention, elastic guardrails are provided at both edges along the length of the conveyor belt to prevent waste from falling onto the conveyor belt and detaching from it.

[0012] Compared with existing technologies, this invention provides a bracket milling fixture with the following advantages: This solution uses a positioning mechanism to position components at corresponding machining stations, ensuring milling accuracy and avoiding machining defects caused by workpiece misalignment. A rotator drives the platform to rotate, enabling rapid switching between multiple stations, improving processing efficiency. Multiple stations can operate synchronously, resulting in uniformly shaped machined parts suitable for mass production. Each machining station is equipped with a discharge window, which, in conjunction with the conveying mechanism between the base and the platform, quickly receives and removes milling waste, preventing waste accumulation from affecting machining accuracy and equipment operation, reducing manual cleaning workload and labor costs, while ensuring processing continuity and high practicality. Attached Figure Description

[0013] Figure 1 This is a perspective view of the two processing stations of the present invention; Figure 2 This is a top view of the two processing stations of the present invention; Figure 3 This is a cross-sectional view of the first arc-shaped end of the present invention along section line A; Figure 4 This is a structural diagram of the first planar end of the present invention; Figure 5 This is a perspective view of the conveyor belt of the present invention; Figure 6 The accompanying drawings are for reference only. Figure 2 Enlarged view of section B.

[0014] Reference numerals: 1. Base; 2. Platform; 3. Processing station; 4. Positioning mechanism; 5. Part to be processed; 6. Rotator; 7. Drop window; 8. Conveying mechanism; 9. Scrap material; 10. Positioning seat; 11. First positioning block; 12. Second positioning block; 13. First flat end; 14. First arc end; 15. Second flat end; 16. Second arc end; 17. Robotic arm; 18. Gap; 19. First floating cylinder; 20. Second floating cylinder; 21. Cylinder seat; 22. First arc wall; 23. First arc surface; 24. Second arc wall; 25. Second arc surface; 26. Conveyor belt; 27. Anti-slip point; 28. Elastic guardrail. Detailed Implementation

[0015] As shown in the figure, an embodiment of the present invention provides a bracket milling fixture to achieve the above-mentioned objective. The fixture includes a base 1 and a platform 2. The platform 2 is provided with at least one processing station 3 and a positioning mechanism 4. The positioning mechanism 4 is provided corresponding to the processing station 3 and is used to position the parts to be processed on the platform 2. The fixture is characterized in that a rotator 6 is provided on the base 1 to drive the platform 2 to rotate. The rotator 6 is fixedly connected to the platform 2. The platform 2 is provided with a vertically penetrating drop window 7 for each processing station 3. A conveying mechanism 8 is provided between the platform 2 and the base 1 at the position corresponding to the drop window 7. The conveying mechanism 8 is used to drop the waste material 9 generated during the processing of the parts through the drop window 7 onto the conveying mechanism 8 and then send it away from the base 1.

[0016] In this implementation, the base 1 is integrally formed from cast iron to ensure the overall rigidity of the tooling and prevent processing vibration from affecting accuracy. The platform 2 is a rectangular steel plate structure, horizontally laid above the base 1. Two processing stations 3 are spaced apart along the length of the platform 2, each with a fixed positioning mechanism 4. The positioning mechanism 4 corresponds one-to-one with the processing station 3, used to accurately position the parts 5 to be processed. A rotary actuator 6 is installed on the base 1. The rotary actuator 6 can be a geared motor, bolted to the base 1. Its output shaft is fixedly connected to the center of the bottom of the platform 2 via a coupling. After the motor starts, it can drive the platform 2 to rotate smoothly around the coupling axis, achieving synchronous switching of processing directions across multiple stations. Alternatively, the rotary actuator 6 can also use a servo motor with a gear set. The servo motor is fixed to one side of the base 1, its output end connected to a drive gear. A driven gear is fixed to the bottom of the platform 2. The drive gear meshes with the driven gear, driving the platform 2 to rotate through gear transmission, allowing precise control of the rotation angle. Each processing station 3 has a vertically extending drop window 7, which is slightly larger than the processing area of ​​the corresponding station to facilitate the dropping of waste material 9. Between the platform 2 and the base 1, there is a conveying mechanism 8 directly below each drop window 7. In this embodiment, the conveying mechanism 8 is a belt conveyor assembly, whose frame is fixed on the base 1. The belt conveyor surface faces the drop window 7. The waste material 9 generated during processing falls onto the belt through the drop window 7 and is then conveyed by the belt conveyor assembly to the outside of the base 1, completing the waste material 9 cleaning.

[0017] As an improved specific implementation, the positioning mechanism 4 includes a positioning seat 10, a first positioning block 11 disposed in front of the positioning seat 10, and a second positioning block 12 disposed behind the positioning seat 10. The first positioning block 11 is used to position the workpiece 5 to be processed from front to back toward the direction of the positioning seat 10, and the second positioning block 12 is used to position the workpiece 5 to be processed from back to front in cooperation with the first positioning block 11.

[0018] In this implementation, the positioning mechanism 4 is fixed to the platform 2 for each processing station 3, including a positioning seat 10, a first positioning block 11, and a second positioning block 12. The positioning seat 10 is detachably fixed to the processing station 3 of the platform 2 by bolts and is used to support the part 5 to be processed. The first positioning block 11 is located in front of the positioning seat 10 and is fixed to the platform 2 by a bracket or robotic arm 17. It is used to push the part 5 to be processed from front to back toward the positioning seat 10 for positioning. The second positioning block 12 is located behind the positioning seat 10 and is also fixed to the platform 2 by a bracket or robotic arm 17. Its position can be adjusted synchronously to form a front-to-back anti-positioning with the first positioning block 11. During assembly, the part 5 to be processed is first placed on the positioning seat 10, and the first positioning block 11 is pushed backward until it is in contact with the front end face of the part. At the same time, the second positioning block 12 is adjusted to move forward and in contact with the rear end face of the part. Through the bidirectional clamping action of the first and second positioning blocks 12, the part is accurately positioned in the front-to-back direction, avoiding the part from shifting back and forth during milling. This embodiment has a simple structure, reliable positioning, and can be adapted to bracket components of different sizes. Adaptation can be achieved by adjusting the position of the positioning block. It is easy to operate and highly adaptable.

[0019] As an improved specific embodiment, the first positioning block 11 includes a first planar end 13 and a first arcuate end 14, the second positioning block 12 includes a second planar end 15 and a second arcuate end 16, and a plurality of robotic arms 17 are provided on the platform 2. There is a gap 18 between the first planar end 13 and its corresponding robotic arm 17 for the first planar end 13 to swing on the robotic arm 17, there is a gap 18 between the second planar end 15 and its corresponding robotic arm 17 for the second planar end 15 to swing on the robotic arm 17, there is a gap 18 between the first arcuate end 14 and its corresponding robotic arm 17 for the first arcuate end 14 to swing on the robotic arm 17, and there is a gap 18 between the second arcuate end 16 and its corresponding robotic arm 17 for the second arcuate end 16 to swing on the robotic arm 17.

[0020] In this implementation, each positioning mechanism 4 corresponding to each processing station 3 on platform 2 is equipped with several robotic arms 17. The robotic arms 17 are made of rigid metal, with their bottoms fixed to platform 2 by bolts, and their tops used to connect to either the first positioning block 11 or the second positioning block 12. The first positioning block 11 is integrally formed with a first flat end 13 and a first arc-shaped end 14, and the second positioning block 12 is integrally formed with a second flat end 15 and a second arc-shaped end 16. A swing gap 18 is reserved between the end and the top of the robotic arm 17. The gap 18 is designed to allow the end to swing slightly along the contact direction, adapting to the contact angle of the component surface. This embodiment provides two connection methods between the end and the robotic arm 17. The first is a hinged connection, where a hinge seat is provided at the top of the robotic arm 17, and a hinge shaft is provided at the bottom of each end. The hinge shaft is embedded in the hinge seat, forming a rotatable structure. The swing gap 18 is controlled by the distance between the hinge seat and the end, ensuring that the end can adjust the contact angle according to the surface contour of the component. The second type is an elastic connection. An elastic pad is fixed to the top of the robotic arm 17, and the bottom of the end is bonded and fixed to the elastic pad. The swing gap 18 is provided by the deformation allowance of the elastic pad, which not only ensures that the end can swing slightly, but also enhances the positioning and clamping force through the elasticity of the elastic pad. In use, the corresponding end can be selected according to the surface shape of the part. The flat end is adapted to the flat area of ​​the part, and the curved end is adapted to the curved area. By setting the swing gap 18, the end is made to fit tightly with the surface of the part, improving the positioning stability.

[0021] As an improved specific embodiment, the positioning mechanism 4 includes a first floating cylinder 19 and a second floating cylinder 20. The first floating cylinder 19 is fixedly connected to the platform 2 through a cylinder seat 21, and the second floating cylinder 20 is fixedly connected to the positioning seat 10. The first floating cylinder 19 abuts against the outer wall of the part to be processed and can press the part to be processed toward the positioning seat 10. The second floating cylinder 20 abuts against the inner wall of the part to be processed and can pull the inner wall at the front position of the part to be processed toward the positioning seat 10.

[0022] In implementation, the first floating cylinder 19 is fixed to the platform 2 via a cylinder seat 21. The cylinder seat 21 is a metal bracket structure, with its bottom bolted to the platform 2 and its top fixed to the first floating cylinder 19. The piston rod of the first floating cylinder 19 faces the positioning seat 10, and its end corresponds to the outer wall of the part to be processed 5, used to press the part towards the positioning seat 10. The second floating cylinder 20 is directly fixed to the positioning seat 10, which has pre-set mounting holes. The cylinder body of the second floating cylinder 20 is embedded in the mounting holes and locked with bolts. Its piston rod faces the inner wall of the part, corresponding to the inner wall at the front of the part, used to pull the inner wall at the front of the part towards the positioning seat 10. Both floating cylinders adopt a structure with floating joints, which can achieve a small swing of the piston rod to adapt to the pressing angle of the part surface and avoid part deformation or positioning deviation caused by rigid pressing. During operation, the parts are first placed on the positioning seat 10. Initial positioning is achieved by the first and second positioning blocks 12. Since the first and second positioning blocks 12 can be adjusted by the gap 18, they are not directly locked at this time. Then, two floating cylinders are activated. The piston rod of the first floating cylinder 19 extends and abuts against the outer wall of the parts, applying a continuous clamping force. The piston rod of the second floating cylinder 20 extends and abuts against the inner wall of the front of the parts, applying a tensioning force. The two work together to firmly position the parts on the positioning seat 10. The start and stop of the cylinders can be linked with the processing flow. The clamping and positioning are completed before processing, and the cylinders are reset after processing, which facilitates the picking and placing of parts. The operation is convenient, the positioning is reliable, and the processing efficiency is improved.

[0023] As an improved specific implementation, the first arc-shaped end 14 has a first arc-shaped wall 22, which can abut against the first arc-shaped surface 23 on the part to be processed, and the second arc-shaped end 16 has a second arc-shaped wall 24, which can abut against the second arc-shaped surface 25 on the part to be processed.

[0024] In this implementation, both the first arc-shaped wall 22 of the first arc-shaped end 14 and the second arc-shaped wall 24 of the second arc-shaped end 16 are machined. The arc contours are designed to fit the corresponding arc dimensions on the component 5 to be processed, ensuring that the arc walls can fit snugly against the first arc surface 23 and the second arc surface 25 on the component. The curvature of the first arc wall 22 and the second arc wall 24 can be flexibly set according to the component specifications. In this embodiment, both arc walls adopt a single-curvature arc structure to fit the arc surfaces of common bracket-type components. The first arc wall 22 is integrally formed at the end of the first arc-shaped end 14. The arc surface is polished to reduce friction with the arc surface of the component and avoid scratching the component surface. Its arc length is set to cover the effective positioning area of ​​the corresponding arc surface of the component, ensuring positioning stability. The second arc-shaped wall 24 is symmetrically arranged with the first arc-shaped wall 22 and is integrally formed at the end of the second arc-shaped end 16. The radius of the arc matches the radius of the second arc-shaped surface 25 of the component, so that they can form surface contact when fitted, improving the uniformity of positioning and pressing. In use, the first arc-shaped wall 22 of the first arc-shaped end 14 is aligned and fitted with the first arc-shaped surface 23 of the component, and the second arc-shaped wall 24 of the second arc-shaped end 16 is aligned and fitted with the second arc-shaped surface 25 of the component. It can be adjusted by swinging through the gap 18 to make the arc-shaped wall fit tightly with the arc surface of the component, avoiding positioning deviation caused by the fitting gap 18. At the same time, with the fixing effect of the robotic arm 17, the positioning effect is further enhanced, which is suitable for the milling of the arc-shaped structure bracket and ensures the machining accuracy.

[0025] As an improved specific implementation, the conveying mechanism 8 includes a conveyor belt 26, which is positioned corresponding to the drop window 7. The conveyor belt 26 is used to convey the parts after they fall from the drop window 7.

[0026] In this implementation, the conveyor belt 26 is positioned corresponding to each drop window 7, installed between the platform 2 and the base 1. Its conveying direction is set away from the center of the base 1 to facilitate the transport of waste material 9 to the outside of the base 1. The conveyor belt 26 adopts a closed-loop conveying structure, including a drive roller, a driven roller, and the conveyor belt body. The drive roller and driven roller are respectively installed at both ends of the base 1 and fixed to the base 1 by bearing seats. The conveyor belt body is fitted onto the two rollers, forming a horizontal conveying surface directly below the drop window 7, ensuring that the waste material 9 falls onto the conveyor belt 26 through the drop window 7. The conveyor belt 26 in this solution can be made of rubber, which is soft and wear-resistant, suitable for transporting small waste materials 9, preventing the waste material 9 from getting stuck. The thickness of the conveyor belt 26 is designed to withstand the impact of the waste material 9 and is not easily damaged. Alternatively, a metal chain conveyor belt 26 can be used, composed of several metal chain plates hinged together. It boasts high strength and is suitable for handling large, heavy blocky waste materials 9, preventing damage to the conveyor belt 26 from the waste material 9 and facilitating the cleaning of residual waste material 9. The drive roller is connected to a drive motor, which is fixed to the base 1. The motor drives the drive roller to rotate via a chain, thereby driving the conveyor belt 26. The conveying speed can be adjusted according to the amount of waste material 9 generated, ensuring timely delivery and preventing accumulation below the discharge window 7.

[0027] As an improved embodiment, the conveyor belt 26 has a plurality of anti-slip points 27 for preventing the waste material 9 on the conveyor belt 26 from slipping.

[0028] In this solution, anti-slip points 27 are set on the conveying surface of the conveyor belt 26 to prevent the waste material 9 from sliding during the conveying process and to ensure that the waste material 9 is stably conveyed to the outside of the base 1. The anti-slip points 27 in this solution can be integrally formed with the conveyor belt 26 or can be pasted on the side of the conveyor belt 26 facing the drop window 7 to prevent the waste material 9 from sliding, shifting, or even falling off the conveyor belt 26 due to the operation of the conveyor belt 26 or the vibration of the tooling.

[0029] As an improved embodiment, elastic guardrails 28 are provided at both edges of the conveyor belt 26 along its length direction. The elastic guardrails 28 are used to prevent the waste material 9 from falling off the conveyor belt 26 and detaching from the conveyor belt 26.

[0030] In this implementation, the elastic guardrails 28 are installed along both sides of the conveyor belt 26 to block the waste material 9 on the conveyor belt 26 and prevent it from falling off. The conveyor belt 26 uses rubber guardrails, which are long strips with rectangular cross-sections. They are fixed to the frame on both sides of the conveyor belt 26 with bolts. The height of the guardrails is higher than the conveying surface of the conveyor belt 26, and the spacing is adapted to the width of the conveyor belt 26. The rubber material has good elasticity and wear resistance. When the waste material 9 hits the guardrails, it can buffer the impact force through elastic deformation to prevent the waste material 9 from rebounding and falling off the conveyor belt 26, while protecting the waste material 9 and the guardrails from damage.

[0031] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A bracket milling fixture, comprising a base and a platform, wherein at least one machining station and a positioning mechanism are provided on the platform, the positioning mechanism being configured corresponding to the machining station for positioning the part to be machined on the platform, characterized in that, The base is equipped with a rotator for driving the platform to rotate. The rotator is fixedly connected to the platform. The platform is equipped with a vertical drop window for each processing station. A conveying mechanism is provided between the platform and the base at the drop window position. The conveying mechanism is used to drop the waste generated during the processing of parts through the drop window onto the conveying mechanism and then send it away from the base.

2. The bracket milling fixture according to claim 1, characterized in that, The positioning mechanism includes a positioning seat, a first positioning block disposed in front of the positioning seat, and a second positioning block disposed behind the positioning seat. The first positioning block is used to position the part to be processed from front to back toward the direction of the positioning seat, and the second positioning block is used to position the part to be processed from back to front in cooperation with the first positioning block.

3. The bracket milling fixture according to claim 2, characterized in that, The first positioning block includes a first planar end and a first arcuate end, and the second positioning block includes a second planar end and a second arcuate end. A plurality of robotic arms are provided on the platform. There is a gap between the first planar end and its corresponding robotic arm for the first planar end to swing on the robotic arm. There is a gap between the second planar end and its corresponding robotic arm for the second planar end to swing on the robotic arm. There is a gap between the first arcuate end and its corresponding robotic arm for the first arcuate end to swing on the robotic arm. There is a gap between the second arcuate end and its corresponding robotic arm for the second arcuate end to swing on the robotic arm.

4. The bracket milling fixture according to claim 2, characterized in that, The positioning mechanism includes a first floating cylinder and a second floating cylinder. The first floating cylinder is fixedly connected to the platform via a cylinder seat, and the second floating cylinder is fixedly connected to the positioning seat. The first floating cylinder abuts against the outer wall of the part to be processed and can press the part to be processed toward the positioning seat. The second floating cylinder abuts against the inner wall of the part to be processed and can pull the inner wall at the front position of the part to be processed toward the positioning seat.

5. The bracket milling fixture according to claim 3, characterized in that, The first arc-shaped end has a first arc-shaped wall that can abut against the first arc-shaped surface on the part to be processed, and the second arc-shaped end has a second arc-shaped wall that can abut against the second arc-shaped surface on the part to be processed.

6. The bracket milling fixture according to claim 1, characterized in that, The conveying mechanism includes a conveyor belt, which is positioned corresponding to the drop window and is used to convey the parts after they fall from the drop window.

7. The bracket milling fixture according to claim 6, characterized in that, The conveyor belt has several anti-slip points to prevent waste material from sliding on the conveyor belt.

8. The bracket milling fixture according to claim 6, characterized in that, The conveyor belt is equipped with elastic guardrails at both edges along its length to prevent waste from falling onto the conveyor belt and detaching from it.

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