High-precision automatic fine adjustment device for finish degree in circular mould hole
By combining a cross slide, a hydraulically driven grinding mechanism, and a laser rangefinder, the problem of low accuracy and efficiency in grinding the inner hole of the ring die in the existing technology is solved, realizing high-precision automated grinding of the inner hole, ensuring hole position consistency and a clean processing environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-07
AI Technical Summary
Existing fine-tuning devices require manual tool changes when grinding the inside of ring die holes, making it difficult to achieve precise hole alignment. Furthermore, the spatial coordinate data of multiple holes depends on manual measurement and adjustment, resulting in low processing accuracy and efficiency.
The grinding mechanism, driven by a cross slide and hydraulic cylinder, combined with a laser rangefinder and scanning mechanism, achieves automated and precise positioning and grinding. The clamping mechanism ensures the ring mold is fixed, the placement table automatically collects debris, the scanning mechanism acquires hole position coordinate data, and the hydraulic cylinder controls the grinding depth based on the feedback data.
It achieves high-precision, automated in-hole grinding, avoids human error, ensures consistent grinding depth for each hole, improves processing efficiency and environmental cleanliness, shortens preparation time, and adapts to the processing needs of ring dies made of different materials.
Smart Images
Figure CN224088592U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-precision ring die hole internal processing technology, specifically a high-precision ring die hole internal surface finish automatic fine adjustment device. Background Technology
[0002] The high-precision automatic fine-tuning device for the inner surface finish of ring die holes is an automated device used for precision grinding and polishing of the inner surface of ring die holes. Its core function is to achieve high surface finish and dimensional consistency of the inner wall of the ring die hole through adaptive adjustment, making it suitable for industrial scenarios with strict requirements for the quality of the inner surface of the hole. To ensure the stability and lifespan of the ring die under conditions such as high-speed extrusion and screening, the machining accuracy of its inner hole directly affects the quality of the finished product.
[0003] During the design process of this utility model, the following problems were discovered in the existing technology:
[0004] Existing fine-tuning devices often require operators to manually change tools with different grinding precision when grinding the inside of holes. Furthermore, when facing multiple holes in a ring die, it is difficult to achieve precise hole alignment, which can easily lead to deviations. In addition, the spatial coordinate data of multiple holes depends on manual measurement and adjustment, making it difficult to obtain all the data. Utility Model Content
[0005] The purpose of this invention is to provide a high-precision automatic fine-tuning device for the surface finish inside the ring die hole, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision automatic fine-tuning device for the surface finish of an inner ring die hole, comprising a base, a support frame at the top of the base, a cross slide at the middle of the top of the support frame, a hydraulic cylinder screwed to the bottom of the cross slide, a grinding mechanism at the drive end of the hydraulic cylinder, a laser rangefinder on one side of the outer wall of the top of the grinding mechanism, clamping mechanisms screwed to the inner walls of the left and right sides of the support frame, a placement platform at the middle of the top of the base, and a scanning mechanism on the inner wall of the rear side of the support frame.
[0007] More preferably, the cross slide includes an x-axis screw, with both ends of the x-axis screw rotatably connected to the inner walls of both sides of the x-axis slide rail. The top end of the x-axis slide rail is located at the center of the top of the support frame. A first screw seat is screwed onto the outer wall of the x-axis screw. A first motor is inserted into one end of the x-axis screw. A y-axis slide rail is provided at the bottom end of the first screw seat. A y-axis screw is rotatably connected to the inner walls of both sides of the y-axis slide rail. A second motor is inserted into one end of the y-axis screw. A second screw seat is screwed onto the outer wall of the y-axis screw. A hydraulic cylinder is screwed onto the bottom end of the second screw seat.
[0008] More preferably, the grinding mechanism includes a rotary motor, the output end of which is connected to a connecting shaft, the bottom end of which is screwed with a grinding head, a protective box is provided outside the rotary motor, the top of which is located at the drive end of the hydraulic cylinder, and a laser rangefinder is fitted onto the outer wall of the protective box.
[0009] More preferably, the laser rangefinder is installed side by side with the grinding head, and the laser rangefinder is tilted 10° toward the grinding head.
[0010] More preferably, the clamping mechanism includes two electric telescopic rods, which are respectively screwed to the inner walls of the left and right sides of the support frame. The driving ends of the two electric telescopic rods are provided with clamping rings, and the opposite sides of the clamping rings are provided with clamping pads.
[0011] More preferably, the placement platform includes a placement groove, with collection boxes slidably connected to the inner walls of the left and right sides of the placement groove, and an isolation net is fitted into the top opening of the placement groove.
[0012] More preferably, the scanning mechanism includes two support plates, with a rotating rod rotatably connected to the opposite sides of the two support plates. A support block is sleeved on the outer wall of the rotating rod, and a scanning camera is provided on the top of the support block. A stepper motor is inserted into the rotating rod for movement.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] The cross slide can accurately move the grinding mechanism to any hole position of the ring die, avoiding manual alignment errors. The hydraulic cylinder can precisely control the feed depth of the grinding head based on feedback data, ensuring that the grinding depth of each hole is uniform. The grinding head in the grinding mechanism adopts a screw-in quick-release design, which can quickly complete the replacement of coarse and fine grinding heads. The laser rangefinder can measure the hole depth. The clamping mechanism can clamp both sides of the ring die to prevent the ring die from shaking or shifting. The placement table can automatically collect debris to keep the processing environment clean. The scanning mechanism can perform 360° surround imaging of the ring die surface, thereby obtaining the spatial coordinate data of all holes without blind spots, ensuring the positional accuracy of hole processing. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the cross slide structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;
[0018] Figure 4 This is a schematic diagram of the scanning mechanism of this utility model.
[0019] In the diagram: 1. Base; 2. Support frame; 3. Cross slide table; 301. X-axis screw; 302. X-axis slide rail; 303. First screw seat; 304. First motor; 305. Y-axis slide rail; 306. Y-axis screw; 307. Second motor; 308. Second screw seat; 4. Hydraulic cylinder; 5. Grinding mechanism; 501. Rotary motor; 502. Connecting shaft; 503. Grinding head; 504. Protective box; 6. Laser rangefinder; 7. Clamping mechanism; 701. Electric telescopic rod; 702. Clamping ring; 703. Clamping pad; 8. Placement platform; 801. Placement slot; 802. Collection box; 803. Isolation net; 9. Scanning mechanism; 901. Support plate; 902. Rotating rod; 903. Support block; 904. Scanning camera; 905. Stepper motor. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a high-precision automatic fine-tuning device for the surface finish inside a ring die hole, including a base 1, a support frame 2 on the top of the base 1, a cross slide 3 in the middle of the top of the support frame 2, a hydraulic cylinder 4 screwed to the bottom of the cross slide 3, a grinding mechanism 5 on the driving end of the hydraulic cylinder 4, a laser rangefinder 6 on one side of the outer wall of the top of the grinding mechanism 5, clamping mechanisms 7 screwed to the inner walls of the left and right sides of the support frame 2, a placement platform 8 in the middle of the top of the base 1, and a scanning mechanism 9 on the inner wall of the rear side of the support frame 2.
[0022] In this embodiment, as Figure 1 and Figure 2 As shown, the cross slide 3 includes an x-axis screw 301, with both ends of the x-axis screw 301 rotatably connected to the inner walls of both sides of the x-axis slide rail 302. The top end of the x-axis slide rail 302 is located at the middle of the top of the support frame 2. A first screw seat 303 is screwed onto the outer wall of the x-axis screw 301. A first motor 304 is inserted into one end of the x-axis screw 301. A y-axis slide rail 305 is located at the bottom end of the first screw seat 303. A y-axis screw 306 is rotatably connected to the inner walls of both sides of the y-axis slide rail 305. A second motor 307 is inserted into one end of the y-axis screw 306. A second screw seat 308 is screwed onto the outer wall of the y-axis screw 306. A hydraulic cylinder 4 is screwed onto the bottom end of the second screw seat 308.
[0023] In this embodiment, as Figure 2 As shown, the grinding mechanism 5 includes a rotary motor 501, the output end of the rotary motor 501 is connected to a connecting shaft 502, the bottom end of the connecting shaft 502 is screwed to a grinding head 503, the rotary motor 501 is provided with a protective box 504, the top of the protective box 504 is located at the drive end of the hydraulic cylinder 4, and a laser rangefinder 6 is sleeved on the outer wall of the protective box 504.
[0024] In this embodiment, as Figure 2 As shown, the laser rangefinder 6 and the grinding head 503 are installed side by side, with the laser rangefinder 6 tilted 10° toward the grinding head 503.
[0025] In this embodiment, as Figure 3 As shown, the clamping mechanism 7 includes two electric telescopic rods 701, which are screwed to the inner walls of the left and right sides of the support frame 2 respectively. The driving ends of the two electric telescopic rods 701 are provided with clamping rings 702, and the opposite sides of the clamping rings 702 are provided with clamping pads 703.
[0026] In this embodiment, as Figure 3 As shown, the placement platform 8 includes a placement groove 801, and collection boxes 802 are slidably connected to the inner walls of the left and right sides of the placement groove 801. An isolation net 803 is fitted into the top opening of the placement groove 801.
[0027] In this embodiment, as Figure 4 As shown, the scanning mechanism 9 includes two support plates 901, and a rotating rod 902 is rotatably connected to the opposite side of the two support plates 901. A support block 903 is sleeved on the outer wall of the rotating rod 902, and a scanning camera 904 is provided on the top of the support block 903. A stepper motor 905 is inserted into the rotating rod 902 for movement.
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the high-precision automatic fine-tuning device for the surface finish inside the ring die hole operates as follows:
[0029] First, the operator can place the ring die to be processed horizontally on the placement table 8, ensuring that the center of the ring die is aligned with the isolation net 803 area. Then, the electric telescopic rods 701 on both sides are activated by the external controller, so that the two rods push the clamping rings 702 connected to them laterally towards the center until the clamping pads 703 on the opposite sides of the two clamping rings 702 can tightly fit against the outer edges of the ring die, completing the clamping and fixing of the ring die. Then, the rough grinding head 503 is screwed to the bottom end of the connecting rotating shaft 502. At this time, the scanning mechanism 9 on the rear side of the support frame 2 can be started to work. During this process, the stepper motor 905 drives the rotating rod 902 to start rotating, and through the support block 903 sleeved on the outer wall of the rotating rod 902, it drives the scanning camera 904 to rotate until the scanning image is scanned. The camera of machine 904 covers the entire surface of the ring die, thereby acquiring the precise coordinates of all holes through panoramic imaging and transmitting the data to the external control system to generate the processing path. Afterwards, its cross slide 3 begins precise positioning based on the scanned data. The first motor 304 drives the x-axis screw 301 to rotate, allowing the first screw seat 303, screwed to the outer wall of the x-axis screw 301, to move laterally along the x-axis slide rail 302 until it reaches the x-coordinate of the target hole. Simultaneously, the second motor 307 drives the y-axis screw 306 to rotate, causing the second screw seat 308, screwed to the outer wall of the y-axis screw 306, to move longitudinally along the y-axis slide rail 305 until the grinding mechanism 5 is moved perpendicularly aligned with the hole to be processed. The operator can then activate hydraulic cylinder 4, causing its drive end to push the entire grinding mechanism 5 downwards. During this process, laser rangefinder 6 will simultaneously emit a laser beam at a 10° angle into the hole to be processed, and complete the depth measurement before the grinding head 503 contacts the hole opening. Once the hole depth is confirmed, the operator can activate rotary motor 501, which will drive the grinding head 503 to rotate via connecting shaft 502. During this process, hydraulic cylinder 4 will simultaneously push the grinding head 503 downwards into the hole according to a preset pressure, allowing the grinding head 503 to perform coarse grinding on the inner wall of the hole. After the coarse grinding operation is completed, hydraulic cylinder 4 will slightly lift, and the operator can promptly switch to fine grinding head 503 and repeat the above steps to perform fine grinding on the inner wall of the hole. During this process, the grinding process generates... Dust and debris will fall downwards to the top of the placement slot 801 under gravity, and then fall into the collection box 802 through the isolation net 803. The cross slide 3 allows the grinding mechanism 5 to be moved to any hole position on the ring die with micron-level precision, ensuring the absolute accuracy of the inner surface treatment position of each hole and avoiding manual alignment errors. Furthermore, the orthogonal motion of the x and y axes forms a planar coordinate system, which, combined with the path data generated by the scanning mechanism 9, can quickly traverse all holes on the ring die, suitable for automated processing of complex hole arrays. Simultaneously, the synchronous control of the first motor 304 and the second motor 307 allows the grinding head 503 to move in real-time during horizontal and vertical movements. Compared to single-axis sequential adjustments, this shortens idle travel time and significantly improves batch processing efficiency.The hydraulic cylinder 4 pushes the grinding head 503, dynamically adjusting the force according to changes in the micro-resistance of the hole wall. This ensures grinding efficiency while avoiding excessive local wear, making it suitable for adaptive processing of ring dies of different materials. Furthermore, the hydraulic cylinder 4 can precisely control the feed depth based on feedback data, ensuring uniform grinding depth for each hole and avoiding manual depth deviations. The grinding mechanism 5 enables high-speed rotation to complete grinding and polishing of the hole wall. The grinding head 503 and the connecting shaft 502 use a screw-in quick-release design, allowing for quick and easy replacement of the coarse and fine grinding heads 503, thus achieving seamless integration of multiple grinding processes for a single hole. Laser ranging... Instrument 6 can measure hole depth. When the grinding head 503 approaches the hole opening, the laser rangefinder 6, with its 10° angled design, allows the laser beam to cut in from the side of the grinding head 503 and complete a depth scan at a distance of 5 mm from the hole opening, thus reducing the blind zone. The angled laser beam can also form a triangular measurement surface within the hole, allowing for early detection of microscopic burrs or ellipticity deviations at the hole edge. This enables the external system to fine-tune the feed angle of the hydraulic cylinder 4, preventing the grinding head 503 from damaging the ring die through hard impact. The clamping mechanism 7 firmly clamps the ring die on both sides, ensuring it remains in a fixed position during grinding, preventing shaking or displacement and guaranteeing... The machined hole achieves high dimensional accuracy and surface finish. The electrically operated telescopic rod 701 allows for controlled extension and retraction, automatically clamping and fixing ring dies of different sizes. This simplifies operation, improves processing efficiency, and enhances the device's flexibility and applicability. The clamping pad 703, made of elastic material, prevents the clamping ring 702 from directly contacting the outer edge of the ring die, thus avoiding scratches and damage. The placement table 8 automatically collects debris, maintaining a clean processing environment. Dust and debris generated during grinding automatically fall into the collection box 802 through the isolation net 803, preventing debris accumulation on the ring die surface or in equipment gaps, and preventing damage to processing accuracy due to debris interference. This design reduces the frequency of manual cleaning, and the sliding design of the collection box 802 allows for direct removal and emptying of dust during cleaning without disassembling the equipment or using tools, significantly shortening maintenance time. Furthermore, the stepper motor 905 drives the scanning camera 904 to perform 360° surround imaging of the ring die surface, acquiring spatial coordinate data for all holes without blind spots. This provides an absolute positional reference for subsequent processing, ensuring the positional accuracy of the holes. The image data acquired by the scanning camera 904 can be transmitted to the control system in real time, enabling grinding path planning without manual programming or parameter adjustments, greatly reducing preparation time.
[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A high-precision automatic fine-tuning device for the surface finish of an inner ring die hole, comprising a base (1), characterized in that: The base (1) has a support frame (2) at its top. The support frame (2) has a cross slide (3) at the middle of its top. The bottom of the cross slide (3) is screwed with a hydraulic cylinder (4). The drive end of the hydraulic cylinder (4) is equipped with a grinding mechanism (5). The top outer wall of the grinding mechanism (5) is equipped with a laser rangefinder (6). The inner walls of the left and right sides of the support frame (2) are screwed with clamping mechanisms (7). The top of the base (1) has a placement platform (8) at its middle. The inner wall of the rear side of the support frame (2) is equipped with a scanning mechanism (9).
2. The high-precision automatic fine-tuning device for the surface finish inside a ring die hole according to claim 1, characterized in that: The cross slide (3) includes an x-axis screw (301), the two ends of which are rotatably connected to the inner walls of the x-axis slide rail (302). The top end of the x-axis slide rail (302) is located at the middle of the top of the support frame (2). A first screw seat (303) is screwed onto the outer wall of the x-axis screw (301). A first motor (304) is inserted into one end of the x-axis screw (301). A y-axis slide rail (305) is provided at the bottom end of the first screw seat (303). A y-axis screw (306) is rotatably connected to the inner walls of the two sides of the y-axis slide rail (305). A second motor (307) is inserted into one end of the y-axis screw (306). A second screw seat (308) is screwed onto the outer wall of the y-axis screw (306). A hydraulic cylinder (4) is screwed onto the bottom end of the second screw seat (308).
3. The high-precision automatic fine-tuning device for the surface finish inside a ring die hole according to claim 1, characterized in that: The grinding mechanism (5) includes a rotary motor (501), the output end of which is connected to a connecting shaft (502), the bottom end of which is screwed with a grinding head (503), a protective box (504) is provided outside the rotary motor (501), the top of the protective box (504) is located at the drive end of the hydraulic cylinder (4), and a laser rangefinder (6) is sleeved on the outer wall of the protective box (504).
4. The high-precision automatic fine-tuning device for the surface finish inside a ring die hole according to claim 3, characterized in that: The laser rangefinder (6) is installed in parallel with the grinding head (503), and the laser rangefinder (6) is tilted 10° toward the grinding head (503).
5. The high-precision automatic fine-tuning device for the surface finish inside a ring die hole according to claim 1, characterized in that: The clamping mechanism (7) includes two electric telescopic rods (701), which are screwed to the inner walls of the left and right sides of the support frame (2). The driving ends of the two electric telescopic rods (701) are provided with clamping rings (702), and the opposite sides of the clamping rings (702) are provided with clamping pads (703).
6. The high-precision automatic fine-tuning device for the surface finish inside a ring die hole according to claim 1, characterized in that: The placement platform (8) includes a placement slot (801), and collection boxes (802) are slidably connected to the inner walls of the left and right sides of the placement slot (801). An isolation net (803) is fitted into the top opening of the placement slot (801).
7. The high-precision automatic fine-tuning device for the surface finish inside a ring die hole according to claim 1, characterized in that: The scanning mechanism (9) includes two support plates (901), and a rotating rod (902) is rotatably connected to the opposite side of the two support plates (901). A support block (903) is sleeved on the outer wall of the rotating rod (902), and a scanning camera (904) is provided on the top of the support block (903). A stepper motor (905) is inserted into the rotating rod (902).