Large gear sand mold preparation method
By using precisely adjustable and moving processing hardware in the preparation of large gear sand molds, the problem of tooth mold damage in sand mold making is solved, the preparation accuracy and flexibility are improved, and intelligent management is realized.
Patent Information
- Application Number
- CN202510117939.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-05-13
AI Technical Summary
During the casting of large gears, one tooth shape is damaged during the sand mold making process, and the existing technology is difficult to ensure the integrity of hundreds of tooth shapes.
Using a machining hardware including a processing table, a first support table, a second support table and a limit movement mechanism, the precise adjustment and movement of the support table and the placement table are achieved through an electric telescopic rod and a driving motor, and the limit guide rail and slider are combined to ensure the correct positioning and processing of the gear sand type.
It improves the flexibility and accuracy in the preparation process of large-scale gear sand type, reduces the possibility of tooth type damage, extends the service life of the sand type, and improves the intelligent management level of the overall operation through remote supervision and power equipment management modules.
Smart Images
Figure CN119973046A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of liquid casting molding, in particular to a method for preparing a large gear sand mold. Background Art
[0002] Large gear sand mold refers to a sand mold used to cast large gears. It is a very important part of the casting process and is particularly suitable for producing large and complex gear parts. Sand casting (also known as sand mold casting) is a commonly used metal casting method that uses sand as a mold material to pour molten metal into the sand mold and form the required metal parts after cooling. There are some specific technical requirements and challenges in the design and production process of sand casting for large gears.
[0003] Since it is very difficult to ensure that hundreds of teeth are intact during the casting process of large gears, and one tooth is damaged during the sand mold making process, the entire sand mold will be scrapped. Therefore, it is necessary to simultaneously improve the sand mold preparation process and processing equipment for large gears.
[0004] Based on this, the present invention provides a method for preparing a large gear sand mold to solve the technical problems mentioned above. Summary of the invention
[0005] The purpose of the present invention is to provide a method for preparing a large gear sand mold to solve the problems raised by the above background technology.
[0006] To achieve the above object, the present invention provides the following technical solutions: A first aspect of the present invention includes processing hardware for preparing, The processing hardware includes a processing table, a placing table is installed on the top of the processing table, and a limiting table is installed on the top of the placing table; The top of the processing table is slidably connected to a first support table, the first support table is located on one side of the placement table, and the top of the processing table is slidably connected to a second support table, the second support table is located on the other side of the placement table; A limited movement mechanism is installed between the processing table and the first support table, and between the processing table and the second support table, and the installation positions of the first support table and the second support table are adjusted by the limited movement mechanism; The top of described supporting scaffold is installed with the supporting scaffold on one side, and the supporting scaffold is installed with the supporting scaffold on one side, and the bottom of described supporting scaffold is installed with the supporting scaffold at the bottom. A cutting blade is installed on one side of the second support platform, a positioning plate is installed below the cutting blade, a fixing seat is installed on one side of the positioning plate, and a grinding roller is rotatably connected inside the fixing seat. As a preferred technical solution, the bottom of the placement table is rotatably connected to a support plate, and an installation box is installed inside the processing table and below the support plate, the inside of the installation box is fixedly connected to a first electric telescopic rod, the output end of the first electric telescopic rod is fixedly connected to the bottom of the support plate, the inside of the support plate is fixedly connected to a second drive motor, the output end of the second drive motor is connected to the bottom of the placement table, and the processing table is provided with a mounting groove for use with the placement table, and the placement table is installed through the mounting groove, and the first electric telescopic rod is operated to drive the support plate to move upward until the limit table moves to the required height, and the second drive motor is operated to drive the placement table to rotate, and the placement table is matched with the placement table. The gear sand mold placed on the limit table is rotated. During actual operation, the sizes of the placement table and the limit table are replaced as needed. The limit moving mechanism includes a reciprocating screw. Two symmetrically distributed reciprocating screws are installed on the top of the processing table. The outer sides of the reciprocating screws are threadedly connected to two first limit sliding blocks. The tops of the first limit sliding blocks are fixedly connected with moving slides, one of the tops of the moving slides is connected to the first support table, and the other top of the moving slide is connected to the second support table. A limit moving mechanism of the same structure used in conjunction with a grinding roller is installed on one side of the second support table, and a first driving motor used in conjunction with the limit moving mechanism is installed on the top of the second support table.
[0007] As a preferred technical solution, limit guide rails are installed on the top of the processing table and on both sides of the reciprocating screw rod, and two second limit sliders are sleeved on the outer side of the top of the limit guide rails. The tops of four second limit sliders on the same side are connected to one of the moving sliders, and the tops of four second limit sliders on the same side are connected to another moving slider. Two third drive motors are installed on the top of the processing table, and the two third drive motors are symmetrically distributed. The output ends of the third drive motors are connected to the corresponding reciprocating screw rods, and the first support table and the second support table are limited in movement by the limit guide rails and the second limit sliders. The third driving motor is operated to drive the corresponding reciprocating screw to rotate, thereby driving the two first limit sliding blocks to move to one side, thereby realizing the lateral position adjustment of the first support platform and the second support platform, until the first support platform and the second support platform move to the best position for matching the placement platform, thereby improving the flexibility of equipment use; the top of the fixed column is fixedly connected with a second electric telescopic rod, the output end of the second electric telescopic rod is fixedly connected to one end of the top of the pressure rod, and the top of the mounting top cover is installed with equidistantly distributed limit blocks, which are driven by the operation of the second electric telescopic rod to move the pressure rod downward until the connecting rod moves above the limit block to cooperate with subsequent processing.
[0008] As a preferred technical solution, a control panel is fixedly connected to the outer side of the first support platform, and the first drive motor, the second drive motor, the first electric telescopic rod, the third drive motor, the second electric telescopic rod and the third electric telescopic rod are all electrically connected to the control panel. The control panel is used to control the operation of the first drive motor, the second drive motor, the first electric telescopic rod, the third drive motor, the second electric telescopic rod and the third electric telescopic rod, thereby realizing unified management of power equipment.
[0009] As a preferred technical solution, it also includes processing software for preparation, the processing software includes a preparation process management module and an electric power equipment management module, and the processing software is set inside the control panel; The preparation process management module is used to formulate, supervise and later overhaul the preparation method of large gear sand molds, which is convenient for remote supervision; The power equipment management module is used to control the operation of the first drive motor, the second drive motor, the first electric telescopic rod, the third drive motor, the second electric telescopic rod and the third electric telescopic rod. When an abnormality occurs in a certain power equipment, the problem point can be queried in the first time.
[0010] As a preferred technical solution, the method for preparing the large gear sand mold includes the following specific contents: S1. Modeling S100. Before molding, check whether the model is complete and whether the loose pieces are complete. Confirm the loose pieces and the direction of demoulding to avoid damage during demoulding. Check whether the casting is correct and complete. S101. The model is formed on a flat plate, and there should not be any object on the plate that affects the flatness of the mold; S102. All the movable parts of the mold are compact during molding, and the chiller, riser, and vent plate are checked to see if they are in place according to the process requirements; S103. The porcelain tube pouring system is tightly connected, the tape is tightly tied, the laying position is strictly followed according to the specifications, and the position is placed according to the positioning specifications on the model. The position shall not be changed at will; S104. Place the sand box so that the model is at the center of the inner side of the sand box, and place three sand molds of the molding body test rods into the lower box; S105. Pre-buried compass center support sleeve at the mold center; S106. When running sand, make sure that the loose block, chiller, vent plate and riser cannot be displaced; S107. Tighten the molding sand during sand flow, especially at the corners; S108. After demolding, place the sand mold on a flat surface to prevent deformation of the sand mold; S2. Core making S3. Matching S4. Brushing Apply white paint first, then grind it flat to remove paint accumulation, especially on the teeth, then apply black paint, and grind it flat again to ensure there are no obvious flow marks, no accumulation, and the casting is clear; S5. Close the box Large-sized expansion boxes and lifting boxes are relatively large, so take measures such as box clamping, box pressing, and bar clamping, and lay a sand bed at the bottom of the lower box to prevent sinking and leakage and fire. S6. Baking type Control the hot air temperature at 180-200℃, bake for 10-14 hours and pour within 15 minutes; S7. Security Pay attention to safety when turning over boxes. Unrelated personnel should leave the scene. When driving, obey the instructions of the designated person on the ground to reduce impact and vibration and avoid box collapse.
[0011] As a preferred technical solution, S2 includes the following specific S: S200. All core box bolts are tightened to prevent the mud core from expanding; S201. Before sand flow, check whether the core bone and hanging rope are firm and whether the direction of the ventilation rope is correct; S202. Tighten the corners of the mud core when the sand is flowing; S203. Pay attention to the direction of demoulding when removing the mold to avoid damaging the clay core and mold; S204. Place the finished mud core on a flat surface to prevent it from deforming. Do not paint the tooth mud core for now and wait until the next core is finished to be painted together with the outer shape.
[0012] As a preferred technical solution, S3 includes the following specific S: S300. When the lower tooth is cored, use a circle calibrating compass to control the root circle size, and use a tooth profile template to control the gap and tooth shape between the tooth cores; S301. When placing the first tooth-shaped clay core, align the center line of the casting box with the center line of the tooth-shaped clay core, then turn the compass to place other tooth-shaped clay cores in sequence; S302. Each tooth-shaped mud core should be inspected tooth by tooth using a tooth-shaped template, with emphasis on the tooth shape composed of two tooth-shaped mud cores; S303. After all tooth-shaped mud cores are laid, use a tape measure to measure whether the diameter of the tooth heel circle meets the size requirements, and ensure that the tooth heel circle size is between Ø3371-Ø3373, and then fill with sand to prevent the mud core from shifting when filling with sand.
[0013] Compared with the prior art, the present invention has the following beneficial effects: A processing table, a first support table, a second support table and a limited movement mechanism are provided. When in use, the control panel is opened, and the third electric telescopic rod is operated to drive the push rod to move downward until it passes through the limit bottom plate and the positioning block and moves downward until the gear sand mold on the top of the limit table is limited. The bottom of the positioning block can be installed with a gear sand mold processing equipment. An installation groove for use with the placement table is provided inside the processing table. The placement table is installed through the installation groove. The first support table and the second support table are moved and limited by the limit guide rail and the second limit slider. The third driving motor is operated to drive the corresponding reciprocating screw rod to rotate, thereby driving the two first limit sliders to move to one side, thereby realizing the lateral position adjustment of the first support table and the second support table, until the first support table and the second support table move to the best position to match the placement table, thereby improving the equipment. The flexibility of preparation and use is achieved by operating the second electric telescopic rod to drive the pressure rod to move downward until the connecting rod moves above the limit block, and cooperates with subsequent processing. The preparation process management module is used to formulate, supervise and later repair the large gear sand mold preparation method, which is convenient for remote supervision; the power equipment management module is used to control the operation of the first drive motor, the second drive motor, the first electric telescopic rod, the third drive motor, the second electric telescopic rod and the third electric telescopic rod. When an abnormality occurs in a certain power equipment, the problem point can be queried at the first time. At the same time, the large gear sand mold is prepared separately. The overall process is simple and easy to use, and it is convenient for remote supervision by the staff, which improves the level of intelligent management during the overall operation. When an abnormality occurs in a certain preparation link, it is convenient to locate and deal with it accordingly, which improves the flexibility of overall use and meets the needs of actual use. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 Schematic diagram of a processing equipment for a large gear sand mold preparation method of the present invention Figure 1 ; Figure 2 Schematic diagram of a processing equipment for a large gear sand mold preparation method of the present invention Figure 2 ; Figure 3 It is a schematic diagram of the internal structure of a placing table of a large gear sand mold preparation method of the present invention; Figure 4 It is an enlarged schematic diagram of a limit moving mechanism of a large gear sand mold preparation method of the present invention; Figure 5 A schematic diagram of an auxiliary processing mechanism for a large gear sand mold preparation method of the present invention Figure 1 ; Figure 6 A schematic diagram of an auxiliary processing mechanism for a large gear sand mold preparation method of the present invention Figure 2 .
[0015] Legend: 1. Processing table; 2. First support platform; 21. Control panel; 3. Second support platform; 31. Fixed seat; 32. Grinding roller; 33. Cutting disc; 34. First drive motor; 35. Positioning plate; 4. Placement table; 41. Support plate; 42. Limiting table; 43. Second drive motor; 44. Installation box; 45. First electric telescopic rod; 5. Limiting movement mechanism; 51. Reciprocating screw rod; 52. First limiting slider; 53. Limiting guide rail; 54. Third driving motor; 55. Second limiting slider; 6. Supporting horizontal plate; 61. Supporting column; 62. Fixed column; 63. Second electric telescopic rod; 64. Pressing rod; 65. Connecting rod; 66. Bottom placement column; 67. Installing top cover; 68. Limiting block; 69. Third electric telescopic rod; 691. Connecting plate; 692. Installing frame; 693. Push rod; 694. Limiting bottom plate; 695. Positioning block. DETAILED DESCRIPTION
[0016] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example
[0017] See also Figure 1-Figure 6 , a method for preparing a large gear sand mold, including processing hardware for preparation, characterized in that: the processing hardware includes a processing table 1, a placing table 4 is installed on the top of the processing table 1, and a limiting table 42 is installed on the top of the placing table 4; a first support table 2 is slidably connected to the top of the processing table 1, and the first support table 2 is located on one side of the placing table 4, and a second support table 3 is slidably connected to the top of the processing table 1, and the second support table 3 is located on the other side of the placing table 4; a limiting moving mechanism 5 is installed between the processing table 1 and the first support table 2, and between the processing table 1 and the second support table 3, and the installation position of the first support table 2 and the second support table 3 is adjusted by the limiting moving mechanism 5; In this solution, a supporting cross plate 6 is installed on one side of the first supporting platform 2, a supporting column 61 is installed on the top of the supporting cross plate 6, a fixing column 62 is fixedly connected to one side of the supporting column 61, a pressure rod 64 is installed at the bottom of the fixing column 62, a connecting rod 65 is fixedly connected to the bottom of the pressure rod 64, a bottom placing column 66 is installed on the top of the supporting cross plate 6 and below the fixing column 62, a top cover 67 is fixedly connected to the top of the bottom placing column 66, a third electric telescopic rod 69 is fixedly connected to both sides of the bottom placing column 66, and a connecting plate 691 is installed at one end of the third electric telescopic rod 69 , the interior of the connecting plate 691 is installed with a mounting frame 692, the output end of the third electric telescopic rod 69 penetrates the supporting horizontal plate 6 and is fixedly connected with a push rod 693, the bottom of the push rod 693 is fixedly connected with a limiting bottom plate 694, and the bottom of the limiting bottom plate 694 is fixedly connected with a positioning block 695. The third electric telescopic rod 69 is operated to drive the push rod 693 to move downward until it passes through the limiting bottom plate 694 and the positioning block 695 and moves downward until the gear sand mold on the top of the limiting platform 42 is limited. The bottom of the positioning block 695 can be installed with a gear sand mold processing equipment; A cutting blade 33 is installed on one side of the second support platform 3 , a positioning plate 35 is installed below the cutting blade 33 , a fixing seat 31 is installed on one side of the positioning plate 35 , and a grinding roller 32 is rotatably connected inside the fixing seat 31 .
[0018] See also Figure 1-Figure 3In this scheme, the bottom of the placement table 4 is rotatably connected with a support plate 41, and an installation box 44 is installed inside the processing table 1 and below the support plate 41. The inside of the installation box 44 is fixedly connected with a first electric telescopic rod 45, and the output end of the first electric telescopic rod 45 is fixedly connected to the bottom of the support plate 41. The inside of the support plate 41 is fixedly connected with a second drive motor 43, and the output end of the second drive motor 43 is connected to the bottom of the placement table 4. The processing table 1 is provided with a mounting groove for use with the placement table 4, and the placement table 4 is installed through the mounting groove. The first electric telescopic rod 45 is operated to drive the support plate 41 to move upward until the limit table 42 moves to the required height. The second drive motor 43 is operated to drive the placement table 4 to rotate, and the gear sand mold placed above the limit table 42 is rotated. During actual operation, the size of the placement table 4 and the limit table 42 is replaced as needed.
[0019] See also Figure 4 In this scheme, the limiting moving mechanism 5 includes a reciprocating screw 51, and two symmetrically distributed reciprocating screws 51 are installed on the top of the processing table 1. The outer sides of the reciprocating screw 51 are threadedly connected to two first limiting sliders 52. The tops of the first limiting sliders 52 are fixedly connected with moving slides, and the top of one moving slide is connected to the first support platform 2, and the top of the other moving slide is connected to the second support platform 3. A limiting moving mechanism 5 of the same structure used in conjunction with the grinding roller 32 is installed on one side of the second support platform 3, and a first driving motor 34 used in conjunction with the limiting moving mechanism 5 is installed on the top of the second support platform 3.
[0020] In the present scheme, limit guide rails 53 are installed on the top of the processing table 1 and on both sides of the reciprocating screw rod 51, and two second limit sliders 55 are sleeved on the outer side of the top of the limit guide rails 53. The tops of the four second limit sliders 55 on the same side are connected to one of the moving slides, and the tops of the four second limit sliders 55 on the same side are connected to the other moving slide. Two third drive motors 54 are installed on the top of the processing table 1. The two third drive motors 54 are symmetrically distributed, and the output ends of the third drive motors 54 are connected to the corresponding reciprocating screw rods 51. The first support table 2 and the second support table 3 are moved and limited by the limit guide rails 53 and the second limit sliders 55. The operation of the third drive motor 54 drives the corresponding reciprocating screw rod 51 to rotate, thereby driving the two first limit sliders 52 to move to one side, thereby realizing the lateral position adjustment of the first support table 2 and the second support table 3, until the first support table 2 and the second support table 3 move to the best position for matching the placement table 4, thereby improving the flexibility of equipment use.
[0021] See also Figure 5-Figure 6In this solution, the top of the fixed column 62 is fixedly connected with a second electric telescopic rod 63, the output end of the second electric telescopic rod 63 is fixedly connected to the top end of the pressure rod 64, and the top of the mounting cover 67 is installed with equidistantly distributed limit blocks 68. The second electric telescopic rod 63 is operated to drive the pressure rod 64 to move downward until the connecting rod 65 moves to the top of the limit block 68, so as to cooperate with subsequent processing.
[0022] In this solution, a control panel 21 is fixedly connected to the outer side of the first support platform 2, and the first drive motor 34, the second drive motor 43, the first electric telescopic rod 45, the third drive motor 54, the second electric telescopic rod 63 and the third electric telescopic rod 69 are all electrically connected to the control panel 21. The control panel 21 is used to control the operation of the first drive motor 34, the second drive motor 43, the first electric telescopic rod 45, the third drive motor 54, the second electric telescopic rod 63 and the third electric telescopic rod 69, thereby realizing unified management of power equipment.
[0023] See also Figure 1-Figure 6 In this solution, processing software for preparation is also included, and the processing software includes a preparation process management module and a power equipment management module, and the processing software is set inside the control panel 21; the preparation process management module is used to formulate, supervise and later overhaul the large gear sand mold preparation method, which is convenient for remote supervision; the power equipment management module is used to control the operation of the first drive motor 34, the second drive motor 43, the first electric telescopic rod 45, the third drive motor 54, the second electric telescopic rod 63 and the third electric telescopic rod 69. When an abnormality occurs in a certain power equipment, the problem point can be queried at the first time.
[0024] See also Figure 1-Figure 6 The preparation method of the large gear sand mold described in this scheme includes the following specific contents: S1. Modeling S100. Before molding, check whether the model is complete and whether the loose pieces are complete. Confirm the loose pieces and the direction of demoulding to avoid damage during demoulding. Check whether the casting is correct and complete. S101. The model is formed on a flat plate, and there should not be any object on the plate that affects the flatness of the mold; S102. All the movable parts of the mold are compact during molding, and the chiller, riser, and vent plate are checked to see if they are in place according to the process requirements; S103. The porcelain tube pouring system is tightly connected, the tape is tightly tied, the laying position is strictly followed according to the specifications, and the position is placed according to the positioning specifications on the model. The position shall not be changed at will; S104. Place the sand box so that the model is at the center of the inner side of the sand box, and place three sand molds of the molding body test rods into the lower box; S105. Pre-buried compass center support sleeve at the mold center; S106. When running sand, make sure that the loose block, chiller, vent plate and riser cannot be displaced; S107. Tighten the molding sand during sand flow, especially at the corners; S108. After demolding, place the sand mold on a flat surface to prevent deformation of the sand mold; S2. Core making S200. All core box bolts are tightened to prevent the mud core from expanding; S201. Before sand flow, check whether the core bone and hanging rope are firm and whether the direction of the ventilation rope is correct; S202. Tighten the corners of the mud core when the sand is flowing; S203. Pay attention to the direction of demoulding when removing the mold to avoid damaging the clay core and mold; S204. Place the finished mud core on a flat surface to prevent deformation of the mud core. Do not paint the tooth mud core for the time being and paint it together with the outer shape after the core is finished. S3. Matching S300. When the lower tooth is cored, use a circle calibrating compass to control the root circle size, and use a tooth profile template to control the gap and tooth shape between the tooth cores; S301. When placing the first tooth-shaped clay core, align the center line of the casting box with the center line of the tooth-shaped clay core, then turn the compass to place other tooth-shaped clay cores in sequence; S302. Each tooth-shaped mud core should be inspected tooth by tooth using a tooth-shaped template, with emphasis on the tooth shape composed of two tooth-shaped mud cores; S303. After all the tooth-shaped mud cores are laid, use a tape measure to measure whether the diameter of the tooth heel circle meets the size requirements, and ensure that the tooth heel circle size is between Ø3371-Ø3373, and then fill with sand to prevent the mud core from shifting when filling with sand; S4. Brushing Apply white paint first, then grind it flat to remove paint accumulation, especially on the teeth, then apply black paint, and grind it flat again to ensure there are no obvious flow marks, no accumulation, and the casting is clear; S5. Close the box Large-sized expansion boxes and lifting boxes are relatively large, so take measures such as box clamping, box pressing, and bar clamping, and lay a sand bed at the bottom of the lower box to prevent sinking and leakage and fire. S6. Baking type Control the hot air temperature at 180-200℃, bake for 10-14 hours and pour within 15 minutes; S7. Security Pay attention to safety when turning over boxes. Unrelated personnel should leave the scene. When driving, obey the instructions of the designated person on the ground to reduce impact and vibration and avoid box collapse.
[0025] See also Figure 1-Figure 6 , the working principle of the present invention: A processing table 1, a first support table 2, a second support table 3 and a limit moving mechanism 5 are provided. When in use, the control panel 21 is opened, and the third electric telescopic rod 69 is operated to drive the push rod 693 to move downward until it passes through the limit bottom plate 694 and the positioning block 695 and moves downward until the gear sand mold on the top of the limit table 42 is limited. The bottom of the positioning block 695 can be installed with the gear sand mold processing equipment.
[0026] An installation groove for cooperating with the placement table 4 is opened inside the processing table 1. The placement table 4 is installed through the installation groove. The first electric telescopic rod 45 is operated to drive the support plate 41 to move upward until the limit table 42 moves to the required height. The second drive motor 43 is operated to drive the placement table 4 to rotate, and the gear sand mold placed on the limit table 42 is rotated. During actual operation, the sizes of the placement table 4 and the limit table 42 are replaced as needed.
[0027] The first support platform 2 and the second support platform 3 are moved and limited by the limiting guide rail 53 and the second limiting slider 55. The third driving motor 54 is operated to drive the corresponding reciprocating screw rod 51 to rotate, thereby driving the two first limiting sliders 52 to move to one side, thereby realizing the lateral position adjustment of the first support platform 2 and the second support platform 3, until the first support platform 2 and the second support platform 3 move to the best position for matching the placement platform 4, thereby improving the flexibility of equipment use.
[0028] The second electric telescopic rod 63 is operated to drive the pressing rod 64 to move downward until the connecting rod 65 moves to above the limit block 68 to cooperate with subsequent processing.
[0029] The control panel 21 is used to control the operation of the first drive motor 34 , the second drive motor 43 , the first electric telescopic rod 45 , the third drive motor 54 , the second electric telescopic rod 63 and the third electric telescopic rod 69 , thereby achieving unified management of power equipment.
[0030] The processing software is set inside the control panel 21; the preparation process management module is used to formulate, supervise and later overhaul the large gear sand mold preparation method, which is convenient for remote supervision; the power equipment management module is used to control the operation of the first drive motor 34, the second drive motor 43, the first electric telescopic rod 45, the third drive motor 54, the second electric telescopic rod 63 and the third electric telescopic rod 69. When an abnormality occurs in a certain power equipment, the problem point can be queried at the first time.
[0031] At the same time, by separately preparing large gear sand molds, the overall process is simple and easy to use, which is also convenient for remote supervision by staff, improving the level of intelligent management during the overall operation. When an abnormality occurs in a certain preparation link, it is convenient to locate and deal with it accordingly, which improves the overall flexibility of use and meets the needs of actual use.
[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0033] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A method for preparing a large gear sand mold, including processing hardware for preparation, characterized in that: The processing hardware comprises a processing table (1), a placement table (4) is installed on the top of the processing table (1), and a limiting table (42) is installed on the top of the placement table (4); The top of the processing table (1) is slidably connected to a first support table (2), and the top of the processing table (1) is slidably connected to a second support table (3); A limited movement mechanism (5) is installed between the processing platform (1) and the first support platform (2), and between the processing platform (1) and the second support platform (3); A supporting transverse plate (6) is installed on one side of the first supporting platform (2), a supporting column (61) is installed on the top of the supporting transverse plate (6), a fixing column (62) is fixedly connected to one side of the supporting column (61), a pressure rod (64) is installed on the bottom of the fixing column (62), a connecting rod (65) is fixedly connected to the bottom of the pressure rod (64), a bottom placement column (66) is installed on the top of the supporting transverse plate (6) and below the fixing column (62), an output end of the third electric telescopic rod (69) passes through the supporting transverse plate (6) and is fixedly connected to a push rod (693), the bottom of the push rod (693) is fixedly connected to a limiting bottom plate (694), and the bottom of the limiting bottom plate (694) is fixedly connected to a positioning block (695); A cutting blade (33) is mounted on one side of the second support platform (3), a positioning plate (35) is mounted below the cutting blade (33), a fixing seat (31) is mounted on one side of the positioning plate (35), and a grinding roller (32) is rotatably connected inside the fixing seat (31).
2. The method for preparing a large gear sand mold according to claim 1, characterized in that: The bottom of the placement table (4) is rotatably connected to a support plate (41); an installation box (44) is installed inside the processing table (1) and below the support plate (41); a first electric telescopic rod (45) is fixedly connected inside the installation box (44); an output end of the first electric telescopic rod (45) is fixedly connected to the bottom of the support plate (41); a second drive motor (43) is fixedly connected inside the support plate (41); an output end of the second drive motor (43) is connected to the bottom of the placement table (4); and a mounting groove for use with the placement table (4) is provided inside the processing table (1).
3. The method for preparing a large gear sand mold according to claim 1, characterized in that: The limit movement mechanism (5) comprises a reciprocating screw (51), two symmetrically distributed reciprocating screws (51) are installed on the top of the processing table (1), the outer sides of the reciprocating screw (51) are threadedly connected to two first limit sliders (52), the tops of the first limit sliders (52) are fixedly connected to moving slides, the top of one of the moving slides is connected to the first support table (2), and the top of the other moving slide is connected to the second support table (3), a limit movement mechanism (5) of the same structure as used in conjunction with the grinding roller (32) is installed on one side of the second support table (3), and a first drive motor (34) used in conjunction with the limit movement mechanism (5) is installed on the top of the second support table (3).
4. The method for preparing a large gear sand mold according to claim 3, characterized in that: Limiting guide rails (53) are installed on the top of the processing table (1) and on both sides of the reciprocating screw (51). Two second limiting sliders (55) are sleeved on the outer sides of the tops of the limiting guide rails (53). The tops of four second limiting sliders (55) on the same side are connected to one of the moving sliders, and the tops of the other four second limiting sliders (55) on the same side are connected to another moving slider. Two third driving motors (54) are installed on the top of the processing table (1). The two third driving motors (54) are symmetrically distributed, and the output ends of the third driving motors (54) are connected to the corresponding reciprocating screws (51).
5. The method for preparing a large gear sand mold according to claim 4, characterized in that: The third electric telescopic rod (69) is fixedly connected to both sides of the bottom placement column (66), a connecting plate (691) is installed at one end of the third electric telescopic rod (69), and a mounting frame (692) is installed inside the connecting plate (691). The top of the bottom placement column (66) is fixedly connected to a mounting top cover (67), the top of the fixed column (62) is fixedly connected to a second electric telescopic rod (63), the output end of the second electric telescopic rod (63) is fixedly connected to one end of the top of the pressure rod (64), and the top of the mounting top cover (67) is installed with equidistantly distributed limit blocks (68).
6. The method for preparing a large gear sand mold according to claim 5, characterized in that: A control panel (21) is fixedly connected to the outer side of the first support platform (2); the first drive motor (34), the second drive motor (43), the first electric telescopic rod (45), the third drive motor (54), the second electric telescopic rod (63) and the third electric telescopic rod (69) are all electrically connected to the control panel (21).
7. The method for preparing a large gear sand mold according to claim 6, characterized in that: Also included is processing software for preparation, the processing software comprising a preparation process management module and an electric power equipment management module, the processing software being arranged inside the control panel (21); The preparation process management module is used to formulate, supervise and later overhaul the preparation method of large gear sand molds, which is convenient for remote supervision; The power equipment management module is used to control the operation of the first drive motor (34), the second drive motor (43), the first electric telescopic rod (45), the third drive motor (54), the second electric telescopic rod (63) and the third electric telescopic rod (69).
8. The method for preparing a large gear sand mold according to claim 7, characterized in that: The preparation method of the large gear sand mold includes the following specific contents: S1. Modeling: S100. Before molding, check whether the model is complete and whether the loose pieces are complete. Confirm the loose pieces and the direction of demoulding to avoid damage during demoulding. Check whether the casting is correct and complete. S101. The model is formed on a flat plate, and there should not be any object on the plate that affects the flatness of the mold; S102. All the movable parts of the mold are compact during molding, and the chiller, riser, and vent plate are checked to see if they are in place according to the process requirements; S103. The porcelain tube pouring system is tightly connected, the tape is tightly tied, the laying position is strictly followed according to the specifications, and the position is placed according to the positioning specifications on the model. The position shall not be changed at will; S104. Place the sand box so that the model is at the center of the inner side of the sand box, and place three sand molds of the molding body test rods into the lower box; S105. The center support sleeve of the compass is embedded in the center of the mold; S106. When running sand, make sure that the loose block, chiller, vent plate and riser cannot be displaced; S107. Tighten the molding sand during sand flow, especially at the corners; S108. After demolding, place the sand mold on a flat surface to prevent deformation of the sand mold; S2. Core making: S3.Matching: S4. Brushing: Apply white paint first, then grind it flat to remove paint accumulation, especially on the teeth, then apply black paint, and grind it flat again to ensure there are no obvious flow marks, no accumulation, and the casting is clear; S5. Packing: Large-sized expansion boxes and lifting boxes are relatively large, so take measures such as box clamping, box pressing, and bar clamping, and lay a sand bed at the bottom of the lower box to prevent sinking and leakage and fire. S6. Baking: Control the hot air temperature to 180-200 ° C, bake for 10-14 hours and pour within 15 minutes; S7. Safety: Pay attention to safety when folding boxes. Unrelated personnel should leave the scene. When driving, obey the instructions of the designated person on the ground to reduce impact and vibration and avoid box collapse.
9. The method for preparing a large gear sand mold according to claim 8, characterized in that: The S2 includes the following specific S: S200. All core box bolts are tightened to prevent the mud core from expanding; S201. Before sand flow, check whether the core bone and hanging rope are firm and whether the direction of the ventilation rope is correct; S202. Tighten the corners of the mud core when the sand is flowing; S203. Pay attention to the direction of demoulding when removing the mold to avoid damaging the clay core and mold; S204. Place the finished mud core on a flat surface to prevent it from deforming. Do not paint the tooth mud core for now and wait until the next core is finished to be painted together with the outer shape.
10. The method for preparing a large gear sand mold according to claim 8, characterized in that: The S3 includes the following specific Ss: S300. When the lower tooth is cored, use a circle calibrating compass to control the root circle size, and use a tooth profile template to control the gap and tooth shape between the tooth cores; S301. When placing the first tooth-shaped clay core, align the center line of the casting box with the center line of the tooth-shaped clay core, then turn the compass to place other tooth-shaped clay cores in sequence; S302. Each tooth-shaped mud core should be inspected tooth by tooth using a tooth-shaped template, with emphasis on the tooth shape composed of two tooth-shaped mud cores; S303. After all tooth-shaped mud cores are laid, use a tape measure to measure whether the diameter of the tooth heel circle meets the size requirements, and ensure that the tooth heel circle size is between Ø3371-Ø3373, and then fill with sand to prevent the mud core from shifting when filling with sand.