A five-axis machine tool auxiliary machining device

Abstract

The present application relates to machine tool accessory technical field, especially five -axis machine tool auxiliary processing device, including auxiliary platform, the auxiliary platform inside is equipped with multiple slide that is circumferentially distributed, each The inside of slide is penetrated with clamping block, and the clamping block is slidably connected with slide through buffer mechanism, and the buffer mechanism is used for the elastic support of clamping block, the bottom of auxiliary platform is installed with drive mechanism, and drive mechanism is used to drive multiple Clamping block synchronous movement, the clamping block is connected with adjusting mechanism, adjusting mechanism is used to adjust the initial position of clamping block, so that the clamping block can be clamped to the workpiece of complex shape;The initial position of the device can be adjusted to the clamping block, so that the device can also ensure that multiple clamping blocks are simultaneously fitted with the surface of the workpiece when clamping and fixing the workpiece of complex shape, so that the device can clamp and fix the workpiece of complex shape, effectively improve the application range of the device.

Description

Technical Field

[0001] This invention relates to the field of machine tool accessories technology, specifically a five-axis machine tool auxiliary machining device. Background Technology

[0002] Five-axis CNC machine tools are high-tech, high-precision machine tools specifically designed for machining complex curved surfaces. This type of machine tool system has a significant impact on a country's aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and other industries.

[0003] When machining workpieces, five-axis machine tools need to be used with fixtures. In the existing technology, the workpiece is usually clamped by the synchronous movement of multiple clamping blocks. However, since five-axis machine tools are usually used to process workpieces with complex shapes, this clamping method can only clamp workpieces with regular shapes and cannot clamp workpieces with complex shapes, so its applicability is limited. Summary of the Invention

[0004] The purpose of this invention is to provide a five-axis machine tool auxiliary machining device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A five-axis machine tool auxiliary machining device includes an auxiliary platform. Multiple support legs arranged in a circular pattern are fixedly connected to the bottom of the auxiliary platform. Multiple circumferentially distributed slides are formed inside the auxiliary platform. A clamping block passes through each slide. The clamping block is slidably connected to the slide via a buffer mechanism, which provides elastic support for the clamping block. A drive mechanism is installed at the bottom of the auxiliary platform to drive the multiple clamping blocks to move synchronously, thereby clamping the workpiece. Each clamping block is connected to an adjustment mechanism to adjust its initial position, enabling the clamping block to clamp workpieces with complex shapes.

[0006] Preferably, the buffer mechanism includes a first elastic component fixedly connected to the clamping block, the other end of the first elastic component being fixedly connected to the inner wall of the slide rail, and a slide rod fixedly connected inside the slide rail, the slide rod passing through the clamping block and slidably connected to the clamping block.

[0007] Preferably, the driving mechanism includes a hydraulic cylinder installed at the bottom of the auxiliary platform, a support plate fixedly connected to the lower end of the hydraulic cylinder, a plurality of first traction ropes arranged in a circle fixedly connected to the support plate, the other end of the first traction ropes being fixedly connected to the sides of the plurality of clamping blocks respectively, and a plurality of guide wheels arranged in a circle installed at the bottom of the auxiliary platform, the plurality of guide wheels being slidably connected to the plurality of first traction ropes respectively.

[0008] Preferably, the guide wheel sidewall is provided with a limiting groove for limiting the first traction rope.

[0009] Preferably, the adjustment mechanism includes multiple guide cylinders fixed to the bottom of the auxiliary platform and distributed in a circular pattern. Each guide wheel is rotatably connected to a support frame. A movable rod is fixedly connected to the upper end of the support frame. The upper end of the movable rod extends into the interior of the multiple guide cylinders and is slidably connected to the guide cylinders. A second elastic component is fixedly connected to the upper end of the movable rod. The upper end of the second elastic component is fixedly connected to the inner wall of the guide cylinder. A lifting assembly is connected to the upper end of the movable rod. The lifting assembly is used to drive the movable rod to move upward.

[0010] Preferably, the lifting assembly includes a limiting ring fixed to the bottom of the auxiliary platform, a cavity inside the limiting ring, a rotating rod passing through the side wall of the limiting ring, and a take-up roller fixedly connected to the rotating rod. A first channel is opened at the top of the cavity, passing through the side wall of the limiting ring. A second channel is opened at the top of the guide cylinder, passing through the side wall of the guide cylinder. A second traction rope is fixedly connected to the upper end of the movable rod, passing through the first channel and the first channel and being fixedly connected to the take-up roller. A through hole is provided inside the clamping block for the second traction rope to pass through.

[0011] Preferably, the rotating rod is externally fixedly connected to a positioning plate, and a pin passes through the inside of the positioning plate. A protrusion is fixedly connected to one end of the pin away from the limiting ring, and a third elastic component is fixedly connected to the side of the protrusion. The other end of the third elastic component is fixedly connected to the positioning plate. The limiting ring has circumferentially distributed pin grooves that are adapted to the pin.

[0012] Compared with the prior art, the beneficial effects of the present invention are: when the device performs auxiliary processing on the workpiece, it clamps and fixes the workpiece by synchronously moving multiple clamping blocks distributed in a circle. On the one hand, it can quickly complete the clamping and fixing of the workpiece, thereby improving the processing efficiency of the workpiece. On the other hand, it can clamp and fix the workpiece from multiple directions, effectively improving the stability of the workpiece processing. Before clamping the workpiece, the initial position of the clamping blocks can be adjusted, so that when clamping and fixing workpieces with complex shapes, multiple clamping blocks can be simultaneously in contact with the workpiece surface. This allows the device to clamp and fix workpieces with complex shapes, effectively improving the applicability of the device and ensuring the clamping and fixing effect on workpieces with complex shapes. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the bottom structure of the auxiliary platform in an embodiment of the present invention.

[0015] Figure 3 This is a cross-sectional view of the internal structure of the guide cylinder in an embodiment of the present invention.

[0016] Figure 4 This is a cross-sectional view of the internal structure of the limiting ring in an embodiment of the present invention.

[0017] Figure 5 for Figure 1 Enlarged view of point A in the middle.

[0018] In the diagram: 1-Auxiliary platform; 2-Clamping block; 3-Slide rail; 4-Buffer mechanism; 41-First elastic component; 42-Slide rod; 5-Drive mechanism; 51-First traction rope; 52-Hydraulic cylinder; 53-Guide wheel; 54-Support plate; 55-Limiting groove; 6-Adjusting mechanism; 61-Second traction rope; 62-Guide cylinder; 63-Modible rod; 64-Support frame; 65-Second elastic component; 66-Second channel; 67-First channel; 68-Take-up roller; 69-Rotating rod; 610-Limiting ring; 611-Positioning plate; 612-Protrusion; 613-Third elastic component; 614-Pin rod; 615-Pin groove; 7-Support leg. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 merely illustrative and not intended to limit the invention.

[0020] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0021] In one embodiment, see Figure 1 and Figure 2 A five-axis machine tool auxiliary machining device includes an auxiliary platform 1. Multiple support legs 7 arranged in a circular pattern are fixedly connected to the bottom of the auxiliary platform 1. Multiple slide rails 3 arranged in a circular pattern are provided inside the auxiliary platform 1. A clamping block 2 passes through each slide rail 3. The clamping block 2 is slidably connected to the slide rail 3 via a buffer mechanism 4, which provides elastic support for the clamping block 2. A drive mechanism 5 is installed at the bottom of the auxiliary platform 1. The drive mechanism 5 drives the multiple clamping blocks 2 to move synchronously, thereby clamping the workpiece. Each clamping block 2 is connected to an adjustment mechanism 6, which adjusts the initial position of the clamping block 2, enabling the clamping block 2 to clamp workpieces with complex shapes.

[0022] In this embodiment, when the device assists in the processing of a workpiece, the workpiece is placed on the surface of the auxiliary platform 1. Then, the drive mechanism 5 drives multiple clamping blocks 2 to move synchronously. When the end faces of the clamping blocks 2 are all in contact with the workpiece surface, the drive mechanism 5 stops operating, thus completing the fixation of the workpiece. The synchronous movement of multiple clamping blocks 2 enables rapid clamping and fixation of the workpiece, thereby improving the processing efficiency of the workpiece. Furthermore, the multiple clamping blocks 2, which are distributed in a circular pattern, can clamp and fix the workpiece from multiple directions, effectively improving the stability of the workpiece processing. The number of clamping blocks 2 is 6 or more. In addition, each clamping block 2 is connected to an adjustment component. When clamping the workpiece, the initial position of the clamping block 2 can be adjusted by the adjustment mechanism 6. This ensures that when clamping and fixing workpieces with complex shapes, multiple clamping blocks 2 can be in contact with the workpiece surface at the same time. This allows the device to clamp and fix workpieces with complex shapes, effectively improving the applicability of the device and ensuring the clamping and fixing effect of workpieces with complex shapes.

[0023] Please see Figure 1 The buffer mechanism 4 includes a first elastic component 41 fixedly connected to the clamping block 2, and the other end of the first elastic component 41 fixedly connected to the inner wall of the slide 3. A slide rod 42 is fixedly connected inside the slide 3, and the slide rod 42 passes through the clamping block 2 and is slidably connected to the clamping block 2. The clamping block 2 is elastically supported by the first elastic component 41, which allows the clamping block 2 to be reset, making it convenient for the operator to place the workpiece on the surface of the auxiliary platform 1. The first elastic component 41 can be a spring. In addition, the slide bar 42 plays a limiting role for the clamping block 2, which effectively improves the stability of the clamping block 2 during horizontal movement.

[0024] Please see Figure 2 The drive mechanism 5 includes a hydraulic cylinder 52 installed at the bottom of the auxiliary platform 1. A support plate 54 is fixedly connected to the lower end of the hydraulic cylinder 52. A plurality of first traction ropes 51 distributed in a circle are fixedly connected to the support plate 54. The other end of the first traction ropes 51 is fixedly connected to the side of a plurality of clamping blocks 2 respectively. A plurality of guide wheels 53 distributed in a circle are installed at the bottom of the auxiliary platform 1. The plurality of guide wheels 53 are slidably connected to a plurality of first traction ropes 51 respectively. When clamping and fixing the workpiece, the workpiece is placed on the surface of the auxiliary platform 1. Then, the hydraulic cylinder 52 drives the support plate 54 to move downward. At the same time as the support plate 54 moves downward, it pulls the first traction rope 51. Under the guidance of the guide wheel 53, the first traction rope 51 pulls the clamping block 2, so that the clamping block 2 moves synchronously towards the workpiece until the end face of the clamping block 2 is in contact with the side of the workpiece. At this time, the workpiece is fixed. The synchronous movement of the clamping block 2 can quickly complete the clamping and fixing of the workpiece, thereby improving the processing efficiency of the workpiece.

[0025] Please see Figure 2 The guide wheel 53 has a limiting groove 55 on its side wall to limit the first traction rope 51; The limiting groove 55 can limit the first traction rope 51, which can prevent the first traction rope 51 from deviating and effectively improve the stability of the first traction rope 51.

[0026] Please see Figure 2 and Figure 3 The adjustment mechanism 6 includes multiple guide cylinders 62 fixed to the bottom of the auxiliary platform 1 and distributed in a circular pattern. Each guide wheel 53 is rotatably connected to a support frame 64. A movable rod 63 is fixedly connected to the upper end of the support frame 64. The upper ends of the movable rods 63 extend into the interior of the multiple guide cylinders 62 and are slidably connected to the guide cylinders 62. A second elastic component 65 is fixedly connected to the upper end of the movable rod 63. The upper end of the second elastic component 65 is fixedly connected to the inner wall of the guide cylinder 62. A lifting assembly is connected to the upper end of the movable rod 63. The lifting assembly is used to drive the movable rod 63 to move upward. When the initial position of clamping block 2 needs to be adjusted, the lifting assembly drives the movable rod 63 to move upward. The movable rod 63 drives the guide wheel 53 to move upward through the support frame 64. At the same time, the guide wheel 53 pulls the clamping block 2 through the first traction rope 51, thereby adjusting the initial position of clamping block 2. This allows the device to clamp workpieces with complex shapes, effectively improving the applicability of the device. The guide cylinder 62 acts as a limit for the movable rod 63, effectively improving the stability of the movable rod 63 when it moves up and down. The second elastic component 65 acts as a reset component for the movable rod 63. The second elastic component 65 can be a spring.

[0027] Please see Figure 2 , Figure 3 and Figure 4 The lifting assembly includes a limiting ring 610 fixed to the bottom of the auxiliary platform 1. The limiting ring 610 has a cavity inside. A rotating rod 69 passes through the side wall of the limiting ring 610. A take-up roller 68 is fixedly connected to the rotating rod 69. A first channel 67 is opened at the top of the cavity and passes through the side wall of the limiting ring 610. A second channel 66 is opened at the top of the guide cylinder 62 and passes through the side wall of the guide cylinder 62. A second traction rope 61 is fixedly connected to the upper end of the movable rod 63. The second traction rope 61 passes through the first channel 67 and is fixedly connected to the take-up roller 68. The clamping block 2 has a through hole for the second traction rope 61 to pass through. When the initial position of clamping block 2 needs to be adjusted, rotate the rotating rod 69. The rotating rod 69 drives the take-up roller 68 to rotate. At the same time, the take-up roller 68 pulls the movable rod 63 through the second traction rope 61, so that the movable rod 63 drives the guide wheel 53 to move upward through the support frame 64, thereby adjusting the initial position of clamping block 2, so that the device can clamp workpieces with complex shapes.

[0028] Please see Figure 5 The rotating rod 69 is externally fixedly connected to a positioning plate 611, and a pin 614 passes through the inside of the positioning plate 611. A protrusion 612 is fixedly connected to one end of the pin 614 away from the limiting ring 610. A third elastic component 614 is fixedly connected to the side of the protrusion 612. The other end of the third elastic component 614 is fixedly connected to the positioning plate 611. The limiting ring 610 has a pin groove 615 that is circumferentially distributed and adapted to the pin 614 on its side wall. When adjusting the initial position of clamping block 2, the pin 614 is pulled out from the pin groove 615 through the protrusion 612. At this time, the rotating rod 69 can be rotated. When the initial position of clamping block 2 is adjusted, the protrusion 612 is released. Under the action of the third elastic component 614, the pin 614 automatically inserts into one of the pin grooves 615. At this time, the pin groove 615 fixes the rotating rod 69 through the pin 614 and the positioning plate 611, ensuring the stability of the rotating rod 69, thereby ensuring the traction effect of the second traction rope 61 on the movable rod 63, and effectively improving the stability of the guide wheel 53. The third elastic component 614 can be a spring.

[0029] Working Principle: When assisting in the processing of a workpiece, the device places the workpiece on the surface of the auxiliary platform 1. The hydraulic cylinder 52 drives the support plate 54 downwards. Simultaneously, the support plate 54 pulls the first traction rope 51. Guided by the guide wheel 53, the first traction rope 51 pulls the clamping block 2, causing the clamping block 2 to move synchronously towards the workpiece until its end face contacts the side of the workpiece. At this point, the workpiece is fixed. The synchronous movement of the clamping block 2 allows for rapid clamping and fixing of the workpiece, thereby improving processing efficiency. Furthermore, the multiple clamping blocks 2 arranged in a circular pattern allow for clamping and fixing of the workpiece from multiple directions, effectively improving processing efficiency. In addition to ensuring the stability of the process, before clamping the workpiece, the rotating rod 69 can be rotated, which drives the take-up roller 68 to rotate. At the same time, the take-up roller 68 pulls the movable rod 63 through the second traction rope 61, so that the movable rod 63 drives the guide wheel 53 to move upward through the support frame 64. At the same time, the guide wheel 53 moves upward and pulls the clamping block 2 through the first traction rope 51, thereby adjusting the initial position of the clamping block 2. This allows the device to ensure that multiple clamping blocks 2 are in contact with the workpiece surface at the same time when clamping and fixing workpieces with complex shapes, thus effectively improving the applicability of the device.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A five-axis machine tool auxiliary machining device, comprising an auxiliary platform; characterized in that, The auxiliary platform has multiple circumferentially distributed support legs fixedly connected to its bottom. Multiple circumferentially distributed slides are formed inside the auxiliary platform, each slide containing a clamping block. The clamping blocks are slidably connected to the slides via a buffer mechanism, which provides elastic support for the clamping blocks. A drive mechanism is installed at the bottom of the auxiliary platform to drive the multiple clamping blocks to move synchronously, thereby clamping the workpiece. Each clamping block is connected to an adjustment mechanism to adjust its initial position, enabling it to clamp workpieces with complex shapes. The buffer mechanism includes a first elastic component fixedly connected to the clamping block, with its other end fixedly connected to the inner wall of the slide. A slide rod is fixedly connected inside the slide, passing through the clamping block and slidably connected to it. The drive mechanism includes a hydraulic cylinder installed at the bottom of the auxiliary platform. A support plate is fixedly connected to the lower end of the hydraulic cylinder, and multiple circumferentially distributed first traction ropes are fixedly connected to the support plate. The other ends of the first traction ropes are fixedly connected to the sides of the multiple clamping blocks. Multiple circumferentially distributed guide wheels are installed at the bottom of the auxiliary platform. The guide wheel is not slidably connected to the first traction ropes; the guide wheel sidewall is provided with a limiting groove for limiting the first traction ropes; the adjustment mechanism includes multiple guide cylinders fixed to the bottom of the auxiliary platform and distributed circumferentially, each guide wheel is rotatably connected to a support frame, the upper end of the support frame is fixedly connected to a movable rod, the upper end of the movable rod extends into the interior of the multiple guide cylinders and is slidably connected to the guide cylinders, the upper end of the movable rod is fixedly connected to a second elastic component, the upper end of the second elastic component is fixedly connected to the inner wall of the guide cylinder, wherein the upper end of the movable rod is connected to a lifting assembly, the lifting assembly being used for The movable rod moves upward; the lifting assembly includes a limiting ring fixed to the bottom of the auxiliary platform, the limiting ring has a cavity inside, a rotating rod passes through the side wall of the limiting ring, and a take-up roller is fixedly connected to the rotating rod. A first channel is opened at the top of the cavity, the first channel passes through the side wall of the limiting ring, a second channel is opened at the top of the guide cylinder, the second channel passes through the side wall of the guide cylinder, a second traction rope is fixedly connected to the upper end of the movable rod, the second traction rope passes through the second channel and the first channel and is fixedly connected to the take-up roller, and a through hole is provided inside the clamping block for the second traction rope to pass through.

2. The five-axis machine tool auxiliary machining device according to claim 1, characterized in that, A positioning plate is fixedly connected to the outside of the rotating rod, and a pin passes through the inside of the positioning plate. A protrusion is fixedly connected to one end of the pin away from the limiting ring, and a third elastic component is fixedly connected to the side of the protrusion. The other end of the third elastic component is fixedly connected to the positioning plate. The side wall of the limiting ring is provided with pin grooves that are circumferentially distributed and adapted to the pin.

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