White mold cutting device for lost foam casting production
By introducing positioning cylinder-driven synchronous clamping of the splint and multi-dimensional positioning wheel limiting in the white mold cutting device, the problem of low cutting accuracy of existing equipment is solved, and efficient and accurate white mold cutting is achieved, which is suitable for the production needs of small and medium-sized enterprises.
Patent Information
- Application Number
- CN202422810687.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-11-18
AI Technical Summary
Existing white mold cutting equipment generally has the problem of low cutting accuracy, especially manual and semi-automatic equipment, which can hardly meet the efficient production needs of small and medium-sized enterprises. Fully automatic equipment has high investment costs and is difficult to maintain.
A white mold cutting device is used, which includes a frame, a cutting assembly and a positioning assembly. The positioning cylinder drives the clamping plate to move, and the clamping plate drives the connecting rod and the driving rod to rotate, thereby realizing the synchronous clamping and positioning of the white mold. The movement of the cutting drill bit is controlled by the PLC program, and the positioning wheel and anti-drift wheel are used to position and limit the white mold in multiple dimensions to ensure stability during the cutting process.
The precision and stability of blank mold cutting are improved, the probability of displacement during the cutting process is reduced, and the efficiency and precision of the cutting process are improved.
Smart Images
Figure CN223383094U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of casting production, and in particular to a white mold cutting device for lost foam casting production. Background Art
[0002] Lost foam casting (LFC) is an advanced casting method that involves embedding a prefabricated foam plastic model (also known as a white mold) in dry sand. Molten metal is then poured in, causing the foam model to vaporize and disappear, ultimately forming the casting. To improve casting quality and efficiency, the quality of the white mold cutting is crucial.
[0003] Common white mold cutting equipment mainly includes manual cutting machines, semi-automatic cutting machines and fully automatic cutting machines. Manual cutting machines usually require operators to hold the tool and cut along a predetermined trajectory. The advantage of this type of equipment is its low cost, but its disadvantages are poor cutting accuracy, low work efficiency and high labor intensity. Semi-automatic cutting machines are generally equipped with an electric drive system and a simple positioning device, which can achieve straight and curved cutting. Although the cutting accuracy has improved, manual adjustment and monitoring are still required, which makes it difficult to meet the needs of large-scale production. Fully automatic cutting machines integrate CNC systems and precision transmission mechanisms, which can achieve complex three-dimensional cutting paths. However, this type of equipment has high investment costs and is difficult to maintain, making it unsuitable for use by small and medium-sized enterprises. A common problem with existing white mold cutting equipment is low cutting accuracy. Utility Model Content
[0004] In order to improve the above problems, the present application provides a white mold cutting device for lost foam casting production.
[0005] The present application provides a white mold cutting device for lost foam casting production using the following technical solutions:
[0006] A white mold cutting device for lost foam casting production includes a frame, a cutting assembly and a positioning assembly, the cutting assembly includes a movable frame 1, a movable frame 2 and a cutting drill bit, the movable frame 1 is slidably connected to the frame, the movable frame 2 is slidably connected to the frame, and the moving paths of the movable frame 1 and the movable frame 2 are perpendicular to each other, the cutting drill bit is arranged at the end of the movable frame 2, the frame includes a base, and the white mold is placed on the base, the positioning assembly includes a positioning cylinder, a driving rod and a splint, the positioning cylinder is arranged on the base, the driving rod is rotatably connected to the base, the two ends of the driving rod are centrally symmetrical and are both rotatably connected to a connecting rod, the splint is arranged at one end of the connecting rod away from the driving rod, the telescopic rod of the positioning cylinder is connected to one of the splints, and the two splints move toward or away from each other along the same axial direction.
[0007] By adopting the above technical solution, the white mold is placed on the base, and the positioning cylinder drives one of the clamps to move, and the clamp drives the connecting rod and the driving rod to rotate, thereby driving the clamp at the other end to move synchronously. The two clamps realize the synchronous clamping and positioning of the white mold. The cutting drill bit cuts the white mold according to the preset PLC program as the mobile frame one and the mobile frame two move. Under the clamping and positioning of the positioning component, the position of the white mold is more stable, which greatly reduces the displacement during the cutting process and effectively improves the accuracy of the cutting process.
[0008] Preferably, the positioning assembly further includes a slide rod and a slider, the slide rod is arranged on the base, the slider is arranged on the clamping plate, the slider is clamped on the slide rod, and the slider moves along the slide rod.
[0009] By adopting the above technical solution, the positioning cylinder drives the overtime movement, drives the slider to move, and the slider moves along the slide rod to limit the moving path of the splint.
[0010] Preferably, the positioning assembly also includes a follower block and a positioning clamp block, the follower block is arranged on the clamping plate, the positioning clamp block is rotatably connected to the follower block, the positioning clamp block is arranged at the corner of the white mold, the positioning clamp block includes clamp rod 1 and clamp rod 2, the clamp rod 1 and clamp rod 2 are connected in a V shape, and the clamp rod 1 and clamp rod 2 cooperate to clamp the adjacent two sides of the white mold.
[0011] By adopting the above technical solution, the follower block moves synchronously with the clamping plate, driving the positioning clamping block to move. After the clamping rod 1 abuts against one side of the white mold, as the clamping plate continues to move, the positioning clamping block rotates relative to the follower block until the clamping rod 2 abuts against the adjacent side of the white mold. Through the cooperation of the clamping rod 1 and the clamping rod 2, the white mold is further limited and clamped, which is conducive to further improving the position stability of the white mold.
[0012] Preferably, a limit pin 1 and a limit pin 2 are provided on the follower block, the limit pin 1 and the clamping rod 1 are abutted against each other, and the limit pin 2 and the clamping rod 2 are abutted against each other.
[0013] Preferably, a return spring is provided on the follower block, and one end of the return spring away from the follower block is fixedly connected to the positioning clamp block.
[0014] By adopting the above technical solution, the positioning clamp moves with the follower block. When the clamp rod 1 abuts against the side of the white mold, the positioning clamp rotates relative to the follower block until the clamp rod 1 abuts against the limit pin 1, and the positioning clamp rotates into place. At this time, the reset spring is in a stretched state. After the cutting process is completed, the splint drives the follower block to move in the opposite direction. Under the elastic force of the reset spring, the positioning clamp rotates in the opposite direction and rotates into place when the clamp rod 2 abuts against the limit pin 2. The rotation range of the positioning clamp is limited by the limit pin 1 and the limit pin 2.
[0015] Preferably, a positioning wheel is rotatably connected to the positioning clamp, and the wheel surface of the positioning wheel abuts against the side surface of the white mold.
[0016] By adopting the above technical solution, when the positioning clamp clamps the white mold, the positioning wheel abuts against the white mold. The positioning wheel can continuously rotate relative to the positioning clamp during the contact with the white mold, thereby improving the smoothness of clamping and reducing the possibility of damage to the side of the white mold during the clamping movement.
[0017] Preferably, the positioning clamp is provided with an anti-floating wheel, the diameter of the anti-floating wheel is larger than the diameter of the positioning wheel, and when the wheel surface of the positioning wheel abuts against the side surface of the white mold, the anti-floating wheel abuts against the mold surface of the white mold.
[0018] By adopting the above technical solution, while the positioning wheel clamps the side of the white mold, the anti-floating wheel moves synchronously and presses against the mold surface of the white mold, positioning the white mold in multiple dimensions, and further reducing the probability of displacement of the white mold during the cutting process.
[0019] Preferably, a mounting through hole is provided on the positioning clamp block, a mounting shaft is provided in the mounting through hole, the positioning wheel and the anti-drift wheel are sleeved on the mounting shaft, a locking nut is threadedly connected on the mounting shaft, and the locking nut is against the positioning clamp block.
[0020] By adopting the above technical solution, positioning wheels of different sizes are selected according to the thickness of the white mold to be cut and processed, the locking nut is unscrewed, the selected positioning wheel and anti-drift wheel models are replaced, and the positioning wheel and anti-drift wheel are installed on the installation shaft to improve the applicability of the device.
[0021] This application includes at least one of the following beneficial technical effects:
[0022] 1. Through the setting of the positioning component, the blank mold is placed on the base. The positioning cylinder drives one of the clamping plates to move. The clamping plate drives the connecting rod and the driving rod to rotate, and then drives the clamping plate at the other end to move synchronously. The two clamping plates realize the synchronous clamping and positioning of the blank mold. The cutting drill bit cuts the blank mold according to the preset PLC program as the mobile frame 1 and mobile frame 2 move. Under the clamping and positioning of the positioning component, the position of the blank mold is more stable, which greatly reduces the displacement during the cutting process and effectively improves the cutting accuracy.
[0023] 2. Through the setting of the positioning wheel and the anti-floating wheel, the positioning clamp drives the positioning wheel to clamp the white mold. While the positioning wheel clamps the side of the white mold, the anti-floating wheel moves synchronously and presses against the mold surface of the white mold, limiting the positioning of the white mold in multiple dimensions, further reducing the probability of displacement of the white mold during the cutting process. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1It is a structural schematic diagram used to reflect the white mold cutting device in the embodiment of the present application.
[0025] Figure 2 It is a structural diagram used to reflect the positioning component in the embodiment of the present application.
[0026] Figure 3 It is a schematic diagram of the specific structure of the positioning clamp in the embodiment of the present application.
[0027] Explanation of the accompanying drawings: 1. Frame; 2. Base; 21. Slide rod; 3. Cutting assembly; 31. Moving frame 1; 32. Moving frame 2; 33. Cutting drill bit; 4. Positioning assembly; 41. Positioning cylinder; 42. Driving rod; 43. Connecting rod; 44. Clamp; 45. Follower block; 46. Slider; 5. Positioning clamp; 51. Clamp rod 1; 52. Clamp rod 2; 53. Mounting shaft; 54. Positioning wheel; 55. Anti-drift wheel; 56. Matching nut; 57. Locking nut; 6. Limit pin 1; 7. Limit pin 2; 8. Reset spring; 9. White mold. DETAILED DESCRIPTION
[0028] The following is combined with Figure 1-3 This application is described in further detail.
[0029] The present application embodiment discloses a white mold cutting device for lost foam casting production, such as Figure 1 As shown, it includes a frame 1, a cutting component 3 and a positioning component 4. The frame 1 includes a base 2. The white mold 9 is placed on the base 2 before cutting, and the white mold 9 is positioned and clamped by the positioning component 4, and then the white mold 9 is cut by the cutting component 3.
[0030] like Figure 1 As shown, the cutting assembly 3 includes a first movable frame 31, a second movable frame 32, and a cutting drill bit 33. The first movable frame 31 is slidably connected to the frame 1, and the second movable frame 32 is slidably connected to the frame 1. The movement paths of the first movable frame 31 and the second movable frame 32 are perpendicular to each other. The second movable frame 32 has a built-in cutting motor, and the cutting drill bit 33 is coaxially connected to the end of the output shaft of the cutting motor. The cutting drill bit 33 is used to cut the blank mold 9. According to the PLC program settings, the cutting motor is turned on, and the cutting drill bit 33 moves with the movement of the first movable frame 31 and the second movable frame 32, achieving automated cutting of the blank mold 9.
[0031] like Figure 1 and 2As shown, the positioning assembly 4 includes a positioning cylinder 41, a drive rod 42, and a clamping plate 44. The positioning cylinder 41 is fixedly connected to the bottom of the base 2. The drive rod 42 is rotatably connected to the base 2. Both ends of the drive rod 42 are rotatably connected to the connecting rod 43. The clamping plate 44 is rotatably connected to the end of the connecting rod 43 away from the drive rod 42. In this embodiment, two connecting rods 43 and two clamping plates 44 are provided. The telescopic rod of the positioning cylinder 41 is fixedly connected to one of the clamping plates 44.
[0032] like Figure 2 As shown, to limit the movement path of the clamping plate 44, a slide bar 21 is fixedly connected to the base 2, and a slider 46 is fixedly connected to the clamping plate 44. The slider 46 is clamped to the slide bar 21 and slides along the length of the slide bar 21. When the positioning cylinder 41 is activated, it drives one of the clamping plates 44 to move, and the slider 46 moves along the slide bar 21 with the clamping plate 44. The movement of the clamping plate 44 causes the connecting rod 43 to rotate, and the connecting rod 43 drives the driving rod 42 to rotate relative to the base 2, thereby driving the connecting rod 43 at the other end and the clamping plate 44 to move, that is, the two clamping plates 44 move toward or away from each other along the same axial direction.
[0033] like Figure 2 As shown, the clamping plate 44 is also fixedly connected to a follower block 45, which is rotatably connected to a positioning clamping block 5. The positioning clamping block 5 includes a first clamping rod 51 and a second clamping rod 52, which are fixedly connected in a V-shape. The first clamping rod 51 and the second clamping rod 52 cooperate to clamp the adjacent side surfaces of the blank mold 9. In this embodiment, four positioning clamping blocks 5 are provided, two on each clamping plate 44, and the four positioning clamping blocks 5 are located at the four corners of the blank mold 9.
[0034] like Figure 2 and 3 As shown, the positioning clamp 5 is provided with a mounting through hole, that is, both the clamp rod 1 51 and the clamp rod 2 52 are provided with a mounting through hole. A mounting shaft 53 is passed through the mounting through hole, and a positioning wheel 54 and an anti-drift wheel 55 are sleeved on the mounting shaft 53. The diameter of the anti-drift wheel 55 is larger than the diameter of the positioning wheel 54. A matching nut 56 is also sleeved on the mounting shaft 53. One side of the matching nut 56 abuts against the positioning wheel 54, and the other side abuts against the positioning clamp 5. When locking, one end of the mounting shaft 53 passes through the mounting through hole, and a locking nut 57 is threadedly connected to the end. In order to improve the locking stability, a locking gasket is also sleeved between the locking nut 57 and the positioning clamp 5. Through this assembly method, the appropriate model of the positioning wheel 54 and the anti-drift wheel 55 can be selected according to the size and thickness of the white mold 9 to be cut, which is convenient for replacement and disassembly.
[0035] like Figure 2 and 3As shown, a return spring 8 is fixedly connected to the follower block 45, and the end of the return spring 8 away from the follower block 45 is fixedly connected to the positioning clamping block 5. The follower block 45 is also fixedly connected to a limit pin 1 6 and a limit pin 2 7. The limit pin 1 6 and the clamping rod 1 51 abut against each other, and the limit pin 2 7 and the clamping rod 2 52 abut against each other.
[0036] like Figure 2 and 3 As shown, the clamping plate 44 drives the follower block 45 to move, and the follower block 45 drives the positioning clamping block 5 to move. When the wheel surface of the positioning wheel 54 on the clamping rod 1 51 abuts one side of the white mold 9, the positioning clamping block 5 continues to move. At this time, the return spring 8 is in a stretched state until the clamping rod 1 51 abuts the limit pin 1 6. Synchronously, the positioning wheel 54 on the clamping rod 2 52 abuts the other side of the white mold 9. The clamping rods 1 51 and 2 52 cooperate to clamp and fix the white mold 9. At the same time, the anti-floating wheel 55 presses against the mold surface of the white mold 9, further limiting and fixing the white mold 9, reducing the probability of displacement of the white mold 9, and facilitating improved cutting accuracy.
[0037] The implementation principle of the white mold cutting device for lost foam casting production in the embodiment of the present application is as follows:
[0038] The blank mold 9 to be processed is placed on the base 2. The positioning cylinder 41 is activated, driving the two clamping plates 44 toward each other, which in turn causes the four positioning clamping blocks 5 to move synchronously. This process continues until the first and second clamping rods 51 and 52 engage adjacent sides of the blank mold 9, and the surface of the positioning wheel 54 abuts the sides of the blank mold 9, indicating a stable clamping. The cutting drill 33 is then activated, and the blank mold 9 begins to be cut according to the pre-set PLC program. This effectively reduces the probability of displacement of the blank mold 9 during processing and improves cutting accuracy.
[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A white mold cutting device for lost foam casting production, characterized by: The invention comprises a frame (1), a cutting assembly (3) and a positioning assembly (4), wherein the cutting assembly (3) comprises a movable frame 1 (31), a movable frame 2 (32) and a cutting drill bit (33), wherein the movable frame 1 (31) is slidably connected to the frame (1), and the movable frame 2 (32) is slidably connected to the frame (1), and the moving paths of the movable frame 1 (31) and the movable frame 2 (32) are perpendicular to each other, and the cutting drill bit (33) is arranged at the end of the movable frame 2 (32), and the frame (1) comprises a base (2), and a white mold (9) is placed on the base (2 ), the positioning assembly (4) includes a positioning cylinder (41), a driving rod (42) and a splint (44), the positioning cylinder (41) is arranged on the base (2), the driving rod (42) is rotatably connected to the base (2), both ends of the driving rod (42) are rotatably connected to the connecting rod (43) in a centrally symmetrical manner, the splint (44) is arranged at one end of the connecting rod (43) away from the driving rod (42), the telescopic rod of the positioning cylinder (41) is connected to one of the splints (44), and the two splints (44) move toward or away from each other along the same axis.
2. The white mold cutting device for lost foam casting production according to claim 1, characterized in that: The positioning assembly (4) further comprises a slide bar (21) and a slider (46), wherein the slide bar (21) is arranged on the base (2), and the slider (46) is arranged on the clamping plate (44). The slider (46) is clamped on the slide bar (21), and the slider (46) moves along the slide bar (21).
3. The white mold cutting device for lost foam casting production according to claim 1, characterized in that: The positioning assembly (4) further comprises a follower block (45) and a positioning clamp block (5), wherein the follower block (45) is arranged on the clamping plate (44), and the positioning clamp block (5) is rotatably connected to the follower block (45), and the positioning clamp block (5) is arranged at the corner of the white mold (9), and the positioning clamp block (5) comprises a clamping rod 1 (51) and a clamping rod 2 (52), wherein the clamping rod 1 (51) and the clamping rod 2 (52) are connected in a V-shape, and the clamping rod 1 (51) and the clamping rod 2 (52) cooperate to clamp the adjacent two sides of the white mold (9).
4. The white mold cutting device for lost foam casting production according to claim 3, characterized in that: The following block (45) is provided with a limit pin 1 (6) and a limit pin 2 (7), the limit pin 1 (6) and the clamping rod 1 (51) are in abutment with each other, and the limit pin 2 (7) and the clamping rod 2 (52) are in abutment with each other.
5. The white mold cutting device for lost foam casting production according to claim 4, characterized in that: The follower block (45) is provided with a return spring (8), and one end of the return spring (8) away from the follower block (45) is fixedly connected to the positioning clamp block (5).
6. The white mold cutting device for lost foam casting production according to claim 3, characterized in that: The positioning clamp (5) is rotatably connected to a positioning wheel (54), and the wheel surface of the positioning wheel (54) abuts against the side surface of the white mold (9).
7. The white mold cutting device for lost foam casting production according to claim 6, characterized in that: The positioning clamp (5) is provided with an anti-drifting wheel (55), the diameter of the anti-drifting wheel (55) is larger than the diameter of the positioning wheel (54), and when the wheel surface of the positioning wheel (54) abuts against the side surface of the white mold (9), the anti-drifting wheel (55) abuts against the mold surface of the white mold (9).
8. The white mold cutting device for lost foam casting production according to claim 7, characterized in that: The positioning clamp (5) is provided with a mounting through hole, a mounting shaft (53) is provided in the mounting through hole, the positioning wheel (54) and the anti-drift wheel (55) are sleeved on the mounting shaft (53), a locking nut (57) is threadedly connected to the mounting shaft (53), and the locking nut (57) abuts against the positioning clamp (5).