Slotting device for precision casting

By placing the milling cutter at the bottom in the grooving device, and using gravity, scrapers, and an air pump system to remove debris, the problems of debris accumulation and splashing in traditional grooving devices are solved, achieving efficient and convenient debris handling.

CN223916748UActive Publication Date: 2026-02-17DONGYING CHANGRUI INVESTMENT CASTING CO LTD
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Patent Information

Application Number
CN202520558645.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-02-17
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Traditional grooving devices generate a large amount of metal chips during the cutting process when the milling cutter contacts the surface of the casting. This causes the chips to accumulate in the groove or splash onto other surfaces of the casting, increasing the amount of subsequent cleaning work and time.

Method used

Design a grooving device for precision castings, with a milling cutter positioned below the device. Gravity causes the chips to fall directly into a collection box, and a scraper and air pump system efficiently remove the chips.

Benefits of technology

It effectively avoids debris accumulation and splashing, improves grooving efficiency and processing quality, simplifies cleaning steps, and enhances processing convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a grooving device for a precision casting, which comprises a device bottom box, a control host arranged at the front end of the device bottom box, an open structure at the top of the device bottom box, support rods arranged at four corners of the top of the device bottom box, a device top plate fixed at the tops of the support rods, and a first fixing plate and a second fixing plate arranged at the bottom of the device top plate, a first fixing plate and a second fixing plate are arranged in the device bottom box, a moving assembly is arranged between the first fixing plate and the second fixing plate, a telescopic cylinder body is installed at the bottom end in the device bottom box, a numerical control driving box is installed at the top of the telescopic cylinder body, and a milling cutter body is connected to the top of the numerical control driving box. And the milling cutter moves upwards to cut the casting. According to the arrangement mode, metal chippings generated in the grooving process directly fall into the bottom box at the bottom of the device under the action of gravity, the problems of accumulation and sputtering of the chippings are effectively avoided, and the grooving machining efficiency and convenience are improved.
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Description

Technical Field

[0001] This utility model relates to the field of precision casting processing, specifically a grooving device for precision castings. Background Technology

[0002] In the field of precision casting manufacturing, grooving is a key processing step that is of great significance for the subsequent assembly, connection and performance optimization of castings.

[0003] According to the published patent 202421316044.0, a grooving device for processing aluminum alloy die castings, the device includes a housing. Fixed support legs are fixedly connected to the four corners of the bottom of the housing. A base plate is provided inside the housing. Clamping components are symmetrically arranged on both sides of the top of the base plate. A grooving component is provided at the top of the inner cavity of the housing. Inclined guide platforms are symmetrically and fixedly connected to both sides of the bottom of the inner cavity of the housing. This invention can clamp workpieces of different specifications, preventing them from shifting or falling during grooving. It also has cooling capabilities, thus cooling the high temperatures generated by high-speed cutting during grooving, preventing damage to the workpiece and milling cutter. Furthermore, it can collect and separate solid and liquid contaminants generated during grooving, preventing contaminants from affecting the processing process and environment.

[0004] However, in practice, traditional grooving devices typically involve clamping the casting onto the bottom plane of the device using a jig, followed by a milling cutter above the device grooving the casting surface. This grooving method generates a large amount of metal debris during the cutting process. Due to the cutting force, this debris not only accumulates in the newly created groove, forming difficult-to-remove residues, but also splashes onto other surfaces of the casting due to spatter during the cutting process. For those skilled in the art, an additional cleaning step is required after grooving, necessitating the use of specialized tools or equipment such as air guns, brushes, or vacuum cleaners to remove debris from the groove and surface of the casting, increasing workload and time. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a grooving device for precision castings. This addresses the problem that current traditional grooving devices typically involve clamping the casting on the bottom plane of the device using a jig, followed by a milling cutter above the device grooving the casting surface. This grooving method generates a large amount of metal debris during the milling process, which, due to the cutting force, not only accumulates in the newly created groove, forming difficult-to-remove residues, but also splashes onto other surface areas of the casting due to the cutting process. For those skilled in the art, after completing the grooving operation, an additional cleaning process is required, necessitating the use of specialized tools or equipment such as air guns, brushes, or vacuum cleaners to remove debris from the groove and surface of the casting, thus increasing workload and working time.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a grooving device for precision castings is designed, including a device base box, a control host is installed at the front end of the device base box, the top of the device base box has an open structure, support rods are installed at the four corners of the top of the device base box, a device top plate is fixed to the top of the support rods, a first fixing plate and a second fixing plate are provided at the bottom of the device top plate, and a moving component is provided between the first fixing plate and the second fixing plate, a telescopic cylinder is installed at the bottom inside the device base box, a CNC drive box is installed on the top of the telescopic cylinder, and a milling cutter body is connected to the top of the CNC drive box.

[0007] Preferably, the moving component includes a threaded rod, a moving block, a limiting rod, a bearing, a clamping cylinder, and a clamping arm.

[0008] Preferably, the threaded rod is located between the first fixed plate and the second fixed plate. One end of the threaded rod passes through the first fixed plate and is connected to a motor. The motor is mounted on the surface of the first fixed plate. The other end of the threaded rod is rotatably connected to a bearing, which is mounted on the surface of the second fixed plate.

[0009] Preferably, a limiting rod extends through the top of the movable block, and a first fixing plate and a second fixing plate are fixed at both ends of the limiting rod, respectively. A clamping cylinder is installed at the bottom of the movable block, and clamping arms are connected to both sides of the bottom of the clamping cylinder.

[0010] Preferably, the device has limit holes at both the front and rear ends of the bottom box, and discharge ports at the bottom of both sides.

[0011] Preferably, a scraper passes through the limiting hole, and an arc-shaped locking block is fixed between the front and rear scrapers. A telescopic cylinder is engaged with the inner wall of the arc-shaped locking block, and a handle is fixed to one end of the scraper that extends out of the limiting hole.

[0012] Preferably, air pumps are installed on both sides of the telescopic cylinder, and one end of the air pump is connected to an air pipe. The air pipe passes through the outer shell of the telescopic cylinder and is connected to an external nozzle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model combines a moving component, a telescopic cylinder, and a milling cutter body to clamp a precision casting at the top of the device, while the milling cutter body is positioned at the bottom. During the grooving process, the milling cutter body moves upward, cutting and grooving the precision casting from the bottom. This bottom-up grooving design utilizes gravity, causing metal shavings generated during grooving to fall directly into a collection box or bottom box at the bottom of the device. This effectively prevents shavings from accumulating in the grooving tank or splashing onto the casting surface, eliminating the need for subsequent shaving cleaning. This method eliminates the cumbersome steps involved in traditional grooving processes, improving efficiency and convenience. It solves the problem that traditional grooving devices typically involve clamping the casting onto the bottom plane of the device using a jig, followed by a milling cutter above the device grooving the casting surface. In this method, a large amount of metal debris is generated during the milling cutter's contact and cutting process. Due to the cutting force, these debris not only accumulate in the newly created grooves, forming difficult-to-remove residues, but also splash onto other surface areas of the casting due to the spatter during the cutting process.

[0015] 2. This utility model combines a scraper, an arc-shaped locking block, and a handle. When debris falls into the bottom box of the device during the grooving process, the operator holds the handle, which moves the arc-shaped locking block and the connected scraper. The scraper can directly contact the bottom of the device's base plate and scrape up the debris accumulated at the bottom. Subsequently, the debris is scraped out of the device through the side discharge port. The operator only needs to collect it at the discharge port to quickly and conveniently dispose of all the debris, achieving efficient collection and processing of debris.

[0016] 3. This utility model combines a telescopic cylinder, an air pump, and an air pipe. By activating multiple air pumps, the air pumps spray air upwards through the air pipes. This airflow acts on the surface of the precision casting, and by utilizing the force of the jet, it can effectively blow away the strongly adhered debris on the surface of the casting, further enhancing the debris removal effect. This ensures that the debris generated during the grooving process can be removed more thoroughly, improving processing quality and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the mobile component of this utility model;

[0019] Figure 3 This is a schematic diagram of the air pump and air pipe structure of this utility model.

[0020] In the diagram: 1. Device base box; 101. Support rod; 102. Device top plate; 103. Control host; 2. First fixed plate; 201. Motor; 202. Telescopic cylinder; 203. Milling cutter body; 204. Discharge port; 205. Arc-shaped clamping block; 206. Scraper; 207. Handle; 208. Limiting hole; 209. Threaded rod; 210. Moving block; 211. Limiting rod; 212. Clamping cylinder; 213. Clamping arm; 214. Bearing; 215. Second fixed plate; 216. CNC drive box; 3. Air pump; 301. Air pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] Example 1: A grooving device for precision castings, see [link to example]. Figures 1 to 3The device includes a base box 1, with a control host 103 installed at the front end. The top of the base box 1 has an open structure, and support rods 101 are installed at each of the four corners of the top. A device top plate 102 is fixed to the top of the support rods 101. A first fixing plate 2 and a second fixing plate 215 are provided at the bottom of the device top plate 102, and a moving component is provided between the first fixing plate 2 and the second fixing plate 215. A telescopic cylinder 202 is installed at the bottom inside the base box 1, and a CNC drive box 216 is installed on the top of the telescopic cylinder 202. A milling cutter body 203 is connected to the top of the CNC drive box 216. First, the clamping cylinder 212 in the device is activated, and the clamping cylinder 212 moves through its internal... Pneumatic pressure drives multiple clamping arms 213 to move. During this movement, the clamping arms 213 gradually approach the precision casting and eventually clamp it securely. After the precision casting is clamped, the telescopic cylinder 202 in the device is activated. The telescopic cylinder 202 moves upwards, lifting the CNC drive box 216 and the connected milling cutter body 203. The CNC drive box 216 controls the precise movement and grooving path of the milling cutter body 203, ensuring the accuracy and efficiency of the grooving process. Driven by the telescopic cylinder 202, the milling cutter body 203 gradually approaches the bottom of the precision casting and begins grooving. This bottom-up grooving setup utilizes gravity during the grooving process. The generated metal shavings, due to gravity, fall directly into the collection box or bottom box at the bottom of the device, effectively preventing shavings from accumulating in the tank or splashing onto the surface of the casting. This greatly reduces the tedious steps of subsequent shavings cleaning. When it is necessary to adjust the slot position of the precision casting, the motor 201 in the device is started. The motor 201, through its rotation, drives the threaded rod 209 to rotate. Since there is a threaded connection between the threaded rod 209 and the moving block 210, the rotation of the threaded rod 209 will drive the moving block 210 to move. During the movement of the moving block 210, it will drive the clamping cylinder 212 and the clamping arm 213 to move together, thereby achieving the desired adjustment. The adjustment of the grooving position of precision castings can be achieved by adjusting the rotation direction and speed of motor 201, which controls the movement direction and distance of moving block 210, thereby meeting the needs of different grooving positions. This solves the technical problem of traditional grooving devices, which typically involve clamping the casting on the bottom plane of the device with a jig and then using a milling cutter above the device to groove the surface of the casting. In this grooving method, a large amount of metal chips are generated during the contact and cutting process between the milling cutter and the surface of the casting. Due to the cutting force, these chips not only accumulate in the newly grooved slot of the casting, forming residues that are difficult to remove, but also splash onto other surface areas of the casting due to the splashing during the cutting process.

[0023] It should be noted that the CNC drive box 216 mentioned in this application is actually the same component as the CNC drive box in the prior art document 202421316044.0 (a grooving device for processing aluminum alloy die castings). Since the structure and function of the CNC drive box have been disclosed in the prior art document, there is no need to repeat or describe the CNC drive box 216 in detail in this application.

[0024] For details, see Figure 2 The moving assembly includes a threaded rod 209, a moving block 210, a limiting rod 211, a bearing 214, a clamping cylinder 212, and a clamping arm 213.

[0025] Further, see Figure 2 The threaded rod 209 is located between the first fixed plate 2 and the second fixed plate 215. One end of the threaded rod 209 passes through the first fixed plate 2 and is connected to a motor 201. The motor 201 is mounted on the surface of the first fixed plate 2. The other end of the threaded rod 209 is rotatably connected to a bearing 214. The bearing 214 is mounted on the surface of the second fixed plate 215.

[0026] It is worth noting that, see Figure 2 The top of the movable block 210 has a limit rod 211 running through it. The first fixing plate 2 and the second fixing plate 215 are fixed at both ends of the limit rod 211 respectively. A clamping cylinder 212 is installed at the bottom of the movable block 210. Clamping arms 213 are connected to both sides of the bottom of the clamping cylinder 212.

[0027] It is worth noting that, see Figure 1 Limiting holes 208 are provided at both the front and rear ends of the device bottom box 1, and discharge ports 204 are provided at the bottom of both sides.

[0028] It is worth mentioning that, see Figure 1A scraper 206 penetrates the limiting hole 208, and an arc-shaped locking block 205 is fixed between the front and rear scrapers 206. A telescopic cylinder 202 engages with the inner wall of the arc-shaped locking block 205. A handle 207 is fixed to one end of the scraper 206 extending out of the limiting hole 208. When grooving is performed, the milling cutter contacts and cuts the precision casting, generating a large amount of metal chips. These chips fall naturally into the bottom box 1 of the device under gravity. The operator stands beside the device, holds the handle 207, and moves the arc-shaped locking block 205 and its connected scraper 206 by pushing and pulling the handle 207. 6. It can fit the bottom of the device base plate to ensure no gap between it and the bottom surface. When the scraper 206 moves, its edge will scrape across the bottom of the base plate, effectively scraping away the accumulated debris. The scraped debris will gradually gather at the discharge port 204 on the side of the device as the scraper 206 moves. The operator only needs to place a collection container, such as a trash can or debris collection bag, at the discharge port 204. When the debris is discharged from the discharge port 204, it will fall directly into the collection container. The operator can check the collection container regularly and replace or empty it in time when the container is full to ensure that the debris does not overflow or cause other inconvenience.

[0029] It is worth emphasizing that, see Figure 3 Air pumps 3 are installed on both sides of the telescopic cylinder 202. One end of the air pump 3 is connected to an air pipe 301. The air pipe 301 passes through the outer shell of the telescopic cylinder 202 and is connected to an external nozzle. When it is necessary to improve the effect of handling debris, the operator starts multiple air pumps 3. After the air pump 3 starts, it compresses and stores the air to prepare for subsequent airflow injection. When the air pump 3 reaches a certain working pressure, the high-pressure airflow is delivered to the nozzle through the air pipe 301. Since the air pipe 301 passes through the outer shell of the telescopic cylinder 202, it avoids interference or influence on the internal components of the telescopic cylinder 202. The high-pressure airflow is ejected from the nozzle, forming an airflow jet that acts directly on the surface of the precision casting. The airflow jet can blow away the debris from the surface of the casting. The airflow jet can also form an airflow film on the surface of the casting, effectively preventing new debris from adhering to the casting.

[0030] When using a grooving device for precision castings, firstly, the clamping cylinder 212 in the device is activated. Through the internal air pressure, the clamping cylinder 212 drives multiple clamping arms 213 to move. During this movement, the clamping arms 213 gradually approach the precision casting and eventually clamp it securely. After the precision casting is clamped, the telescopic cylinder 202 in the device is activated. The telescopic cylinder 202 moves upwards along the CNC drive box 216 and the connected milling cutter body 203. The CNC drive box 216 controls the precise movement and grooving path of the milling cutter body 203, ensuring the accuracy and efficiency of the grooving process. Driven by the telescopic cylinder 202, the milling cutter body 203 gradually approaches the bottom of the precision casting and begins grooving cutting. The bottom-up grooving design utilizes gravity. Metal debris generated during grooving falls directly into the collection box or bottom box at the bottom of the device due to gravity, effectively preventing debris accumulation in the grooving tank or splashing onto the casting surface. This significantly reduces the tedious steps of subsequent debris cleaning. When the grooving position of the precision casting needs adjustment, the motor 201 in the device is activated. The motor 201, through its rotation, drives the threaded rod 209 to rotate. Because there is a threaded connection between the threaded rod 209 and the moving block 210, the rotation of the threaded rod 209 drives the moving block 210 to move. During the movement of the moving block 210, it drives the clamping cylinder 212 and the clamping arm 213 to move together, thereby... The grooving position of the precision casting can be adjusted by changing the rotation direction and speed of the motor 201, thereby controlling the movement direction and distance of the moving block 210 to meet the needs of different grooving positions. When grooving is in progress, the milling cutter contacts and cuts the precision casting, generating a large amount of metal chips. These chips fall naturally into the bottom box 1 of the device under the influence of gravity. The operator stands next to the device, holds the handle 207, and moves the arc-shaped locking block 205 and its connected scraper 206 by pushing and pulling the handle 207. The scraper 206 can fit against the bottom of the device base plate, ensuring no gap between it and the bottom surface. When the scraper 206 moves, its edge scrapes across the bottom of the base plate, effectively scraping away the accumulated chips from the bottom surface. As the scraper 206 moves, the debris gradually gathers at the discharge port 204 on the side of the device. The operator simply needs to place a collection container, such as a trash can or debris collection bag, at the discharge port 204. When debris is discharged from the discharge port 204, it falls directly into the collection container. The operator can periodically check the collection container and replace or empty it when it is full to ensure that debris does not overflow or cause other inconvenience. When it is necessary to improve the efficiency of debris handling, the operator starts multiple air pumps 3. After the air pumps 3 start, they compress and store air to prepare for subsequent airflow injection. When the air pumps 3 reach a certain working pressure, the high-pressure airflow is delivered to the nozzle through the air pipe 301. Since the air pipe 301 passes through the outer shell of the telescopic cylinder 202...To avoid interference or influence of the air pipe 301 on the internal components of the telescopic cylinder 202, high-pressure airflow is ejected from the nozzle, forming an airflow beam that directly acts on the surface of the precision casting. This airflow beam blows away debris from the casting surface and also forms an airflow film on the casting surface, effectively preventing new debris from adhering to the casting.

[0031] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0032] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A slotting device for precision casting, comprising a device base box (1), a control host (103) is installed at the front end of the device base box (1), and the top of the device base box (1) is an open structure, characterized in that, The device bottom box (1) top four corners are provided with supporting rods (101), the supporting rods (101) top is fixed with device top plate (102), the device top plate (102) bottom is provided with first fixed plate (2) and second fixed plate (215), and the first fixed plate (2) and the second fixed plate (215) are provided with moving assembly, the device bottom box (1) inside bottom end is mounted with telescopic cylinder body (202), the telescopic cylinder body (202) top is mounted with numerical control drive box (216), the numerical control drive box (216) top is connected with milling cutter main body (203).

2. The precision casting slotting apparatus of claim 1 wherein, The moving assembly comprises a threaded rod (209), a moving block (210), a limiting rod (211), a bearing (214), a clamping cylinder (212) and a clamping arm (213).

3. The precision casting slotting apparatus of claim 2 wherein, The threaded rod (209) is located between the first fixed plate (2) and the second fixed plate (215), one end of the threaded rod (209) penetrates the first fixed plate (2) and is connected with a motor (201), the motor (201) is mounted on the surface of the first fixed plate (2), the other end of the threaded rod (209) is rotatably connected with the bearing (214), and the bearing (214) is mounted on the surface of the second fixed plate (215).

4. The precision casting slotting apparatus of claim 2 wherein, The moving block (210) is internally provided with a limiting rod (211) penetrating through the top end, the limiting rod (211) is fixed with the first fixed plate (2) and the second fixed plate (215) at both ends respectively, the moving block (210) is provided with a clamping cylinder (212) at the bottom, and the clamping cylinder (212) is provided with clamping arms (213) at both sides of the bottom.

5. The precision casting slotting apparatus of claim 1 wherein, The device bottom box (1) is provided with limiting holes (208) at the front and rear ends, and is provided with discharge ports (204) at the bottom of both sides.

6. The precision casting slotting apparatus of claim 5 wherein, The limiting holes (208) are provided with scrapers (206) penetrating through, and the scrapers (206) are fixed with arc-shaped clamping blocks (205) between the front and rear scrapers (206), the arc-shaped clamping blocks (205) are provided with telescopic cylinder bodies (202) clamped on the inner walls, and the scrapers (206) are provided with handles (207) fixed on the ends extending out of the limiting holes (208).

7. The precision casting slotting apparatus of claim 1 wherein, The telescopic cylinder bodies (202) are provided with air pumps (3) on both sides, the air pumps (3) are provided with air pipes (301) at one end, the air pipes (301) penetrate through the shell of the telescopic cylinder bodies (202) and are communicated with external nozzles.

Citation Information

Patent Citations

  • Grooving device for aluminum alloy die casting machining

    CN222536982U