A hole-reaming device for machining metal castings

CN224629930UActive Publication Date: 2026-08-14NANJING CHUANGFENG MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-30
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0004]现有技术中,由于金属铸件在扩孔过程中,切削产生的金属粉尘易四处扩散,而粉尘则会堆积在加工区域或吸附于设备表面,并影响钻头散热与切削精度,且金属铸件的规格差异较大,传统固定夹持结构难以适配不同尺寸工件,导致扩孔位置偏差或铸件表面损伤,影响金属铸件的扩孔加工处理

Benefits of technology

通过扩孔单元与粉尘抑制组件联动作业,扩孔同时即时清理粉尘,避免粉尘堆积影响加工精度,保障作业环境安全,而夹持单元与旋转组件配合,可稳固夹持金属铸件并灵活调节转动角度,满足多方位扩孔需求,提升加工灵活性与精准度,有效提高金属铸件的加工质量。

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Abstract

This utility model discloses a hole-reaming device for metal casting processing, comprising: a processing base; a hole-reaming unit and a dust suppression component, both of which are mounted on the processing base and are used for hole reaming and dust removal of the metal casting, respectively; a clamping unit and a rotating component, both of which are mounted on the processing base and are used for clamping and rotating the metal casting, respectively. This utility model achieves this by linking the hole-reaming unit and the dust suppression component, simultaneously reaming and cleaning dust to prevent dust accumulation from affecting processing accuracy and ensuring a safe working environment. The clamping unit and the rotating component work together to securely clamp the metal casting and flexibly adjust the rotation angle, meeting multi-directional hole-reaming needs, improving processing flexibility and accuracy, and effectively improving the processing quality of the metal casting.
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Description

Technical Field

[0001] This utility model relates to the technical field of hole enlargement in metal castings, and in particular to a hole enlargement device for processing metal castings. Background Technology

[0002] Metal castings are mechanical parts formed by pouring molten metal into a pre-made mold and then cooling and solidifying them. Through the casting process, complex geometric structures can be formed in one go, and they have the characteristics of low production cost, high material utilization rate, and suitability for mass production.

[0003] During the casting process, blank holes in metal castings often suffer from problems such as diameter deviation, high surface roughness, or irregular hole shape due to factors such as mold wear and solidification shrinkage of molten metal. However, hole enlargement of metal castings can accurately correct the dimensional deviations of the blank holes, so that the hole diameter meets the requirements of high-precision assembly, and improves the fit accuracy of parts and the stability of mechanical systems.

[0004] In the prior art, during the hole enlargement process of metal castings, the metal dust generated by cutting is easily spread everywhere. The dust will accumulate in the processing area or be adsorbed on the surface of the equipment, affecting the heat dissipation of the drill bit and the cutting accuracy. In addition, the specifications of metal castings vary greatly, and the traditional fixed clamping structure is difficult to adapt to workpieces of different sizes, resulting in hole enlargement position deviation or surface damage to the casting, which affects the hole enlargement processing of metal castings. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the current hole-reaming equipment for metal casting processing, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a hole-reaming device for metal casting processing, which aims to solve the problem that "during the hole-reaming process of metal castings, the metal dust generated by cutting is easily spread everywhere, and the dust will accumulate in the processing area or be adsorbed on the surface of the equipment, affecting the heat dissipation of the drill bit and the cutting accuracy. In addition, the specifications of metal castings vary greatly, and the traditional fixed clamping structure is difficult to adapt to workpieces of different sizes, resulting in hole-reaming position deviation or surface damage to the casting, affecting the hole-reaming processing of metal castings".

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: including: Machining base; Hole enlarging unit and dust suppression component are both mounted on the machining base. The hole enlarging unit and dust suppression component are used for enlarging holes and cleaning dust from metal castings, respectively. The clamping unit and the rotating assembly are both mounted on the machining base. The clamping unit and the rotating assembly are used to clamp and rotate the metal casting, respectively.

[0009] As a preferred embodiment of the reaming device for metal casting processing described in this utility model, the reaming unit includes a vertical frame, which is fixedly connected to the top surface of the processing base. A first notch is provided on the vertical frame. A first electric push rod is fixedly connected to the surface of the vertical frame away from the processing base. An L-shaped plate is fixedly connected to the telescopic end of the first electric push rod. The L-shaped plate is slidably connected in the first notch. A second notch is provided on the L-shaped plate, and a support block is slidably connected in the second notch. A first motor is fixedly connected to the top surface of the support block. A drill rod is fixedly connected to the output end of the first motor. A second electric push rod is fixedly connected to the L-shaped plate, and the telescopic end of the second electric push rod is fixedly connected to the support block.

[0010] As a preferred embodiment of the hole-expanding device for metal casting processing described in this utility model, the dust suppression component includes a transfer box, which is fixedly connected to the bottom surface of the processing base. A vacuum cleaner is fixedly connected to one side surface of the transfer box, and a filter plate is movably connected to the transfer box. A telescopic tube is fixedly connected to the side surface of the transfer box away from the vacuum cleaner, and the other end of the telescopic tube is fixedly connected through an L-shaped plate and fixedly connected to a guide cover.

[0011] As a preferred embodiment of the reaming device for metal casting processing described in this utility model, the clamping unit includes a rotating plate rotatably connected to the top surface of the processing base. A groove is provided on the rotating plate, and a second motor is fixedly connected to the bottom inner wall of the groove. Lead screws are fixedly connected to both output ends of the second motor. The ends of the two lead screws that are far apart from each other are rotatably connected to one inner wall of the groove. Movable plates are threadedly connected to the arms of the two lead screws. The two movable plates are slidably connected in the groove. Multiple rubber anti-slip plates are fixedly connected to the sides of the two movable plates that are close to each other.

[0012] In a preferred embodiment of the reaming equipment for metal casting processing described in this utility model, the rotating assembly includes a third motor, which is fixedly connected to the bottom surface of the processing base, and the output end of the third motor is fixedly connected to the rotating plate.

[0013] In a preferred embodiment of the reaming device for metal casting processing described in this utility model, a tool box is fixedly connected to the bottom surface of the processing base, and a drawer is movably connected to the tool box.

[0014] In a preferred embodiment of the metal casting enlargement device of this utility model, the bottom surface of the transfer box is rotatably connected to a stop block, and the stop block is in movable contact with the filter plate.

[0015] In a preferred embodiment of the reaming device for metal casting processing described in this utility model, a connecting block is fixedly connected to the telescopic tube, and the connecting block is fixedly connected to the processing base.

[0016] The beneficial effects of this utility model are: By working in conjunction with the hole-expanding unit and the dust suppression component, dust is cleaned up in real time while expanding the hole, preventing dust accumulation from affecting the machining accuracy and ensuring a safe working environment. The clamping unit and the rotating component work together to firmly clamp the metal casting and flexibly adjust the rotation angle to meet the needs of hole expansion in multiple directions, improve machining flexibility and accuracy, and effectively improve the machining quality of metal castings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a frontal overall structural diagram of a hole-reaming device for metal casting processing proposed in this utility model; Figure 2 This is a side view of the overall structure of a hole-reaming device for metal casting processing proposed in this utility model; Figure 3 This is a cross-sectional structural diagram of a hole-reaming device for metal casting processing proposed in this utility model; Figure 4 for Figure 1 A magnified structural diagram of region A.

[0018] In the picture: 100. Machining stand; 101. Tool box; 102. Drawer; 200. Hole enlarging unit; 201. Vertical frame; 202. First electric push rod; 203. L-shaped plate; 204. Support block; 205. First motor; 206. Drill rod; 207. Second electric push rod; 300. Dust suppression assembly; 301. Transfer box; 302. Vacuum cleaner; 303. Filter plate; 304. Telescopic tube; 305. Guide cover; 3011. Stop block; 3041. Connecting block; 400. Clamping unit; 401. Rotating plate; 402. Groove; 403. Second motor; 404. Lead screw; 405. Movable plate; 406. Rubber anti-slip plate; 500, Rotating component; 501, Third motor. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0023] Example 1 Reference Figures 1 to 4 This is the first embodiment of the present utility model, which provides the following achievable effects: Machining base 100; Hole enlarging unit 200 and dust suppression component 300 are both mounted on machining base 100. Hole enlarging unit 200 and dust suppression component 300 are used for enlarging holes and cleaning dust from metal castings, respectively. The clamping unit 400 and the rotating component 500 are both mounted on the machining base 100. The clamping unit 400 and the rotating component 500 are used for clamping and rotating the metal casting, respectively.

[0024] During use, the hole-expanding unit 200 and the dust suppression component 300 work together to clean up dust while expanding the hole, preventing dust accumulation from affecting the machining accuracy and ensuring a safe working environment. The clamping unit 400 and the rotating component 500 work together to firmly clamp the metal casting and flexibly adjust the rotation angle to meet the needs of multi-directional hole expansion, improve machining flexibility and accuracy, and effectively improve the machining quality of the metal casting.

[0025] Example 2 Reference Figures 1 to 4 This is the second embodiment of the present invention, which differs from the previous embodiment in that: The hole enlarging unit 200 includes a vertical frame 201, which is fixedly connected to the top surface of the machining base 100. A first notch is provided on the vertical frame 201. A first electric push rod 202 is fixedly connected to the side surface of the vertical frame 201 away from the machining base 100. An L-shaped plate 203 is fixedly connected to the telescopic end of the first electric push rod 202. The L-shaped plate 203 is slidably connected in the first notch. A second notch is provided on the L-shaped plate 203, and a support block 204 is slidably connected in the second notch. A first motor 205 is fixedly connected to the top surface of the support block 204. A drill rod 206 is fixedly connected to the output end of the first motor 205. A second electric push rod 207 is fixedly connected to the L-shaped plate 203. The telescopic end of the second electric push rod 207 is fixedly connected to the support block 204.

[0026] The vertical frame 201 is fixedly connected to the processing base 100, providing stable support for the overall structure. The first electric push rod 202 is activated to push the L-shaped plate 203 to slide within the first notch, which enables the drill rod 206 to move and be positioned in the vertical and horizontal directions. The second electric push rod 207 on the L-shaped plate 203 is activated to push the support block 204 to adjust the drill rod 206 horizontally, adapting to the hole-reaming operation of metal castings of different specifications. The first motor 205 is activated to drive the drill rod 206 to rotate, realizing the gradual hole-reaming of the metal.

[0027] Specifically, the dust suppression component 300 includes a transfer box 301, which is fixedly connected to the bottom surface of the processing base 100. A vacuum cleaner 302 is fixedly connected to one side surface of the transfer box 301, and a filter plate 303 is movably connected to the transfer box 301. A telescopic tube 304 is fixedly connected to the side surface of the transfer box 301 away from the vacuum cleaner 302. The other end of the telescopic tube 304 is fixedly passed through the L-shaped plate 203 and is fixedly connected to the guide cover 305.

[0028] When the vacuum cleaner 302 is started, it simultaneously adsorbs dust during the hole enlargement operation via the telescopic tube 304 and the guide cover 305. The telescopic tube 304 can move with the L-shaped plate 203 to ensure that the guide cover 305 is always aligned with the processing area, thereby improving the dust collection effect. In addition, the filter plate 303 in the transfer box 301 can effectively separate dust from air, making it easy to centrally process and avoid dust pollution of the environment and affecting the use of the hole enlargement components, thus protecting the health of the staff.

[0029] Specifically, the clamping unit 400 includes a rotating plate 401, which is rotatably connected to the top surface of the processing base 100. A groove 402 is provided on the rotating plate 401. A second motor 403 is fixedly connected to the bottom inner wall of the groove 402. Lead screws 404 are fixedly connected to both output ends of the second motor 403. The ends of the two lead screws 404 that are far apart from each other are rotatably connected to one side inner wall of the groove 402. Movable plates 405 are threadedly connected to the arms of the two lead screws 404. The two movable plates 405 are slidably connected in the groove 402. Multiple rubber anti-slip plates 406 are fixedly connected to the sides of the two movable plates 405 that are close to each other.

[0030] The second motor 403 is started to drive the lead screws 404 on both sides to rotate, which drives the movable plates 405 to move synchronously, making them move closer or further apart. The rubber anti-slip plate 406 can not only firmly clamp metal castings of different sizes, but also prevent surface scratches, realize adaptive clamping, and improve its processing stability.

[0031] Specifically, the rotating assembly 500 includes a third motor 501, which is fixedly connected to the bottom surface of the processing base 100, and the output end of the third motor 501 is fixedly connected to the rotating plate 401.

[0032] When in use, the third motor 501 is started to drive the rotating plate 401 to rotate, which can adjust the angle of the casting. Together with the clamping unit 400, it can realize multi-directional processing, improve the flexibility of the equipment and processing efficiency.

[0033] Example 3 Reference Figures 2 to 3 This is the third embodiment of the present invention, which differs from the previous embodiment in that: A toolbox 101 is fixedly connected to the bottom surface of the machining base 100, and a drawer 102 is movably connected to the toolbox 101.

[0034] Tool box 100 is equipped with drawers for easy storage of processing tools such as drill rods and wrenches. It is convenient to use, saves space, keeps the work area tidy, and improves operational convenience. The drill rod is used interchangeably with drill rod 206 to enlarge holes with metal castings of different thicknesses.

[0035] Specifically, a stop block 3011 is rotatably connected to the bottom surface of the transfer box 301, and the stop block 3011 is in movable contact with the filter plate 303.

[0036] The baffle 3011 is movably fitted with the filter plate 303, which can fix the filter plate 303 when filtering dust, and can easily disassemble the filter plate 303 by rotating the baffle 3011 when cleaning dust, thus improving the convenience of maintenance.

[0037] Specifically, a connecting block 3041 is fixedly connected to the telescopic tube 304, and the connecting block 3041 is fixedly connected to the processing base 100.

[0038] During use, one side of the telescopic tube 304 is fixed to the processing base 100 via the connecting block 3041, which can stably support the telescopic tube 304 when the hole expansion unit 200 moves, preventing it from shaking due to its own weight or dust suction pressure.

[0039] During operation, the metal casting to be enlarged is placed on the rotating plate 401, and the second motor 403 is started to drive the lead screws 404 on both sides to rotate, causing the corresponding movable plates 405 to move the rubber anti-slip plates 406 closer together to clamp and fix the metal casting. At this time, the first electric push rod 202 is started to push the L-shaped plate 203 to slide within the first notch of the vertical frame 201, moving the drill rod 206 to a suitable position above the casting. Then, the second electric push rod 207 is started, and the adjusting block 204 slides horizontally within the second notch to position the drill rod 206 on the upper side of the metal casting. After positioning, the first motor 205 is started again to drive the drill rod 206 to rotate, and the enlargement operation of the metal casting begins. During the hole enlargement process, the vacuum cleaner 302 is started, and the dust generated during hole enlargement is sucked into the transfer box 301 through the telescopic tube 304 and the guide cover 305. The filter plate 303 filters the dust, and the purified air is discharged, while the dust is retained in the transfer box 301. When it is necessary to adjust the hole enlargement position of the metal casting, the third motor 501 can be started to drive the rotating plate 401 to rotate and adjust the metal casting to be processed to the appropriate orientation. When it is necessary to clean the dust in the transfer box 301, the stop block 3011 can be rotated to remove the filter plate 303 for cleaning. In addition, the drawer 102 in the tool box 101 can store various processing tools, which are convenient for operators to access at any time, improving processing convenience and efficiency.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A reaming apparatus for machining a metal casting, characterized by: include: Machining base (100); Hole enlarging unit (200) and dust suppression component (300) are both mounted on machining base (100). Hole enlarging unit (200) and dust suppression component (300) are used for enlarging holes and cleaning dust from metal castings, respectively. The clamping unit (400) and the rotating component (500) are both mounted on the machining base (100). The clamping unit (400) and the rotating component (500) are used to clamp and rotate the metal casting, respectively.

2. The metal casting machining reaming apparatus according to claim 1, characterized by: The hole-expanding unit (200) includes a vertical frame (201), which is fixedly connected to the top surface of the processing base (100). A first notch is provided on the vertical frame (201). A first electric push rod (202) is fixedly connected to the side surface of the vertical frame (201) away from the processing base (100). An L-shaped plate (203) is fixedly connected to the telescopic end of the first electric push rod (202). The L-shaped plate (203) is slidably connected in the first notch. A second notch is provided on the L-shaped plate (203), and a support block (204) is slidably connected in the second notch. A first motor (205) is fixedly connected to the top surface of the support block (204). A drill rod (206) is fixedly connected to the output end of the first motor (205). A second electric push rod (207) is fixedly connected to the L-shaped plate (203). The telescopic end of the second electric push rod (207) is fixedly connected to the support block (204).

3. A reaming device for machining a metal casting according to claim 2, characterized in that: The dust suppression component (300) includes a transfer box (301), which is fixedly connected to the bottom surface of the processing base (100). A vacuum cleaner (302) is fixedly connected to one side surface of the transfer box (301). A filter plate (303) is movably connected to the transfer box (301). A telescopic tube (304) is fixedly connected to the side surface of the transfer box (301) away from the vacuum cleaner (302). The other end of the telescopic tube (304) is fixedly connected through an L-shaped plate (203) and is fixedly connected to a guide cover (305).

4. The metal casting machining reaming apparatus according to claim 3, characterized by: The clamping unit (400) includes a rotating plate (401), which is rotatably connected to the top surface of the processing base (100). A groove (402) is provided on the rotating plate (401). A second motor (403) is fixedly connected to the bottom inner wall of the groove (402). Both output ends of the second motor (403) are fixedly connected to lead screws (404). The ends of the two lead screws (404) that are far apart from each other are rotatably connected to one side inner wall of the groove (402). The arms of the two lead screws (404) are threadedly connected to movable plates (405). The two movable plates (405) are slidably connected in the groove (402). The sides of the two movable plates (405) that are close to each other are fixedly connected to multiple rubber anti-slip plates (406).

5. A reaming device for machining a metal casting according to claim 4, characterized in that: The rotating assembly (500) includes a third motor (501), which is fixedly connected to the bottom surface of the processing base (100), and the output end of the third motor (501) is fixedly connected to the rotating plate (401).

6. A reaming device for machining a metal casting according to claim 5, characterized in that: A toolbox (101) is fixedly connected to the bottom surface of the processing base (100), and a drawer (102) is movably connected to the toolbox (101).

7. A reaming device for machining a metal casting according to claim 6, characterized in that: The bottom surface of the transfer box (301) is rotatably connected to a stop (3011), and the stop (3011) is movably attached to the filter plate (303).

8. A reaming device for machining a metal casting according to claim 7, characterized in that: A connecting block (3041) is fixedly connected to the telescopic tube (304), and the connecting block (3041) is fixedly connected to the processing seat (100).