A cast precision machine screw rod propelling device and method

Abstract

The application discloses a castings precision machine tool screw rod propelling device and method, which is applied to the propelling technical field of castings precision machine tools. The fixed assembly can be externally connected at the castings precision machine tool and can cooperate with the auxiliary assembly to limit the movement of the moving assembly. The moving assembly can be externally connected to the gradual storage equipment and drive the gradual storage equipment to move to the processing position of the castings precision machine tool. The limiting assembly can cooperate with the positioning assembly to convey the propelling mechanism to the position close to the moving assembly, so that the propelling mechanism can adapt to the position of the moving assembly and further increase the stability of the moving assembly during movement. The transmission assembly can drive the total moving assembly to rotate after being powered on and started. The total moving assembly can cooperate with the propelling assembly to drive the limiting movement mechanism to move forward, and multiple propelling assemblies can further increase the accuracy of the limiting movement mechanism during forward movement.

Description

Technical Field

[0001] This invention belongs to the field of casting precision machine tool propulsion technology, and specifically relates to a screw propulsion device and method for casting precision machine tools. Background Technology

[0002] The screw propulsion device for casting precision machine tools is a device used to realize workpiece machining in precision machine tools for casting processing. In casting processing, the requirements for workpiece accuracy, flatness and surface quality are high. Therefore, high-precision machine tools and corresponding propulsion devices are required to achieve accurate workpiece machining.

[0003] Existing screw propulsion devices and methods for precision casting machine tools have the following drawbacks: When using screw propulsion structures on precision casting machine tools, the lack of a multi-axis pushing structure makes it impossible to accurately push the screw propulsion structure to the designated position, thereby reducing the accuracy of the screw propulsion structure and the efficiency of precision casting machine tool processing. Summary of the Invention

[0004] The purpose of this invention is to address the existing screw propulsion device and method for precision casting machine tools. Its advantages are: due to the multi-axis pushing structure, the screw propulsion structure can be pushed to the designated position more accurately, thereby improving the accuracy of the screw propulsion structure and increasing the efficiency of precision casting machine tool processing.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a screw propulsion device for a precision casting machine tool, comprising a limiting mechanism and a propulsion mechanism, wherein the propulsion mechanism is bolted to the inner side of the limiting mechanism, the limiting mechanism comprising a fixing component, an auxiliary component, a moving component, a limiting component, and a positioning component, the auxiliary component being bolted to the bottom of the inner side of the fixing component, the moving component being slidably connected to the inner side of the fixing component, the bottom of the moving component being slidably connected to the top of the auxiliary component, the limiting component being bolted to the front side of the fixing component, and the positioning component being threadedly connected to the top of the limiting component, the propulsion mechanism comprising a transmission component, a main drive component, and a propulsion component, wherein the transmission component is bolted to the rear side of the limiting component, the main drive component is bolted to the rear side of the transmission component, the propulsion component is bolted to the surface of the transmission component, the side of the propulsion component near the main drive component meshes with the main drive component, and the rear side of the propulsion component is threadedly connected to the front side of the moving component.

[0006] By adopting the above technical solution, and by setting up a limiting mechanism and a pushing mechanism, the limiting mechanism can cooperate with the pushing mechanism to accurately push the casting fixing device to the machining area of ​​the casting precision machine tool, thereby further improving the accuracy of pushing the casting fixing device.

[0007] The present invention is further configured such that: the fixing component includes a support base, a limiting slide groove and a fixing mounting plate, the limiting slide groove is formed on the top of the support base, and the fixing mounting plate is bolted to both sides of the bottom of the support base.

[0008] By adopting the above technical solution, by setting a fixed component, the support base can cooperate with the limiting slide to limit the movement of the moving component, the fixed mounting plate can support and limit the support base, and the support base can be placed on a casting precision machine tool.

[0009] The present invention is further configured such that: the auxiliary component includes a connecting plate, a storage box and an auxiliary ball, the connecting plate is bolted to the bottom of the limiting slide groove, the storage box is bolted to the inner side of the connecting plate, the auxiliary ball is movably connected to the inner side of the storage box, and the top of the auxiliary ball penetrates through the storage box and is movably connected to the storage box.

[0010] By adopting the above technical solution, and by setting auxiliary components, the connecting plate can cooperate with the storage box to limit the movement of the auxiliary ball, and the auxiliary ball can cooperate with the storage box to provide auxiliary support for the movement of the moving component, and further increase the stability of the moving component when sliding.

[0011] The invention is further configured such that: the moving component includes a sliding seat, a connecting mounting plate and a threaded hole; the sliding seat is slidably connected to the inner side of the limiting groove; the bottom of the storage box is slidably connected to the top of the auxiliary ball; the connecting mounting plate is bolted to both sides of the top of the sliding seat; and the threaded hole is opened on the front side of the sliding seat.

[0012] By adopting the above technical solution, by setting a moving component, the sliding seat can be connected to the bottom of the casting fixing device in cooperation with the connecting mounting plate, and limit the movement of the casting fixing device. The threaded hole can cooperate with the sliding seat to advance as the pushing component rotates.

[0013] The present invention is further configured such that: the limiting component includes a limiting plate, a fixing groove and a limiting mounting plate, the limiting plate is snapped onto the front side of the support base, the fixing groove is opened on the top of the limiting plate, the limiting mounting plate is bolted to both sides of the front side of the limiting plate, and the rear side of the limiting mounting plate passes through the limiting plate and is bolted to the front side of the support base.

[0014] By adopting the above technical solution, by setting a limiting component, the limiting plate can cooperate with the fixing groove to support and limit the positioning component, and facilitate the height adjustment of the positioning component. The limiting mounting plate can cooperate with the limiting plate to install the limiting plate on the front side of the support base.

[0015] The present invention is further configured such that: the positioning component includes a positioning plate, a positioning adjustment plate and an adjustment screw; the positioning plate is slidably connected to the inner side of the fixing groove; the positioning adjustment plate is bolted to both sides of the positioning plate; the adjustment screw is threadedly connected to the top of the positioning adjustment plate; and the bottom of the adjustment screw passes through the positioning adjustment plate and is threadedly connected to the inner side of the fixing groove.

[0016] By adopting the above technical solution, the positioning plate can fix and limit the transmission component by setting the positioning component, and the positioning adjustment plate can cooperate with the adjustment screw to adjust the height of the positioning plate, so that the transmission component can adapt to the position of the threaded hole.

[0017] The present invention is further configured such that: the transmission assembly includes a connecting block, a servo motor and a support ring, the connecting block is bolted to the rear side of the positioning plate, the servo motor is bolted to the rear side of the connecting block, and the support ring is bolted to the surface of the servo motor.

[0018] By adopting the above technical solution, the connecting block can support and limit the servo motor by setting up the transmission component. The servo motor can drive the main drive component to rotate after being powered on and started. The support ring can cooperate with the servo motor to support and limit the propulsion component.

[0019] The present invention is further configured such that: the power assembly includes a transmission plate, a reinforcing plate, and a transmission gear; the transmission plate is bolted to the output end of the servo motor at the rear; the reinforcing plate is bolted to the top, bottom, and both sides of the transmission plate; and the transmission gear is bolted to the side of the transmission plate away from the transmission plate.

[0020] By adopting the above technical solution, the transmission plate can cooperate with the reinforcing plate to support and limit the transmission gear. The transmission plate can cooperate with the servo motor to drive the reinforcing plate to rotate the transmission gear. When the transmission gear rotates, it can drive the propulsion component to rotate, thereby providing the propulsion component with the power required for rotation.

[0021] The present invention is further configured such that: the propulsion assembly includes a limiting rotating rod, a driven gear, and a propulsion screw; the limiting rotating rod is rotatably connected to the rear side of the support ring; there are a total of eight limiting rotating rods; the driven gear is bolted to the rear side of the limiting rotating rod; the surface of the driven gear meshes with the surface of the transmission gear; the propulsion screw is bolted to the rear side of the driven gear; and the surface of the rear side of the propulsion screw is threaded to the inner side of the threaded hole.

[0022] By adopting the above technical solution, the propulsion assembly includes a limiting rotating rod, a driven gear, and a propulsion screw. The limiting rotating rod is rotatably connected to the rear side of the support ring, and there are a total of eight limiting rotating rods. The driven gear is bolted to the rear side of the limiting rotating rod, and the surface of the driven gear meshes with the surface of the transmission gear. The propulsion screw is bolted to the rear side of the driven gear, and the surface of the rear side of the propulsion screw is threaded to the inner side of the threaded hole.

[0023] A method for advancing a screw in a precision casting machine tool includes the following steps:

[0024] S1. Assembly and conveying: First, install the fixed mounting plate on the casting precision machine tool to be installed. Then, install the casting fixing equipment on the connecting mounting plate. Next, install the limiting mounting plate on the front side of the support base. Then, install the positioning plate with the pushing mechanism in the fixing groove. Then, rotate the adjusting screw until the pushing mechanism contacts the threaded hole and is threadedly connected. Then, the pushing mechanism will drive the sliding seat forward. The sliding seat will move forward along the limiting slide groove and the auxiliary ball until the casting fixing equipment is pushed to the processing area of ​​the casting precision machine tool.

[0025] S2. Transmission and propulsion: First, after the propulsion screw is connected to the limiting mechanism, the servo motor is powered on and started. The servo motor will drive the transmission gear to rotate the driven gear, which will then rotate the propulsion screw to move the limiting mechanism forward until the limiting mechanism moves to the desired position.

[0026] In summary, the present invention has the following beneficial effects:

[0027] 1. By setting a limiting mechanism, the fixed component can be externally connected to the casting precision machine tool, and can cooperate with the auxiliary component to limit the movement of the moving component. The moving component can be externally connected to the gradual storage device, and drive the gradual storage device to the processing area of ​​the casting precision machine tool. The limiting component can cooperate with the positioning component to transport the pushing mechanism to a position close to the moving component, so that the pushing mechanism can adapt to the position of the moving component and further increase the stability of the moving component during movement.

[0028] 2. By setting up a propulsion mechanism, the transmission component can drive the main drive component to rotate after being powered on and started. The main drive component can cooperate with the propulsion component to drive the limiting mechanism to move. Furthermore, multiple propulsion components can further increase the accuracy of the limiting mechanism during propulsion. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 This is a schematic diagram showing the connection between the fixed component and the auxiliary component of the present invention;

[0031] Figure 3 This is a schematic diagram of the fixed component structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the auxiliary component structure of the present invention;

[0033] Figure 5 This is a schematic diagram of the moving component structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the limiting component structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the positioning component structure of the present invention;

[0036] Figure 8 This is a schematic diagram of the propulsion mechanism structure of the present invention;

[0037] Figure 9 This is a schematic diagram of the transmission component structure of the present invention;

[0038] Figure 10 This is a schematic diagram of the overall drive assembly structure of the present invention;

[0039] Figure 11 This is a schematic diagram of the propulsion component structure of the present invention;

[0040] Figure 12 This is a schematic diagram of the propulsion method of the present invention.

[0041] Reference numerals: 1. Limiting mechanism; 101. Fixing component; 1011. Support base; 1012. Limiting slide groove; 1013. Fixing mounting plate; 102. Auxiliary component; 1021. Connecting plate; 1022. Storage box; 1023. Auxiliary ball; 103. Moving component; 1031. Sliding seat; 1032. Connecting mounting plate; 1033. Threaded hole; 104. Limiting component; 1041. Limiting plate; 1042. Fixing groove; 1043. Limiting seat 1. Mounting plate; 105. Positioning assembly; 1051. Positioning plate; 1052. Positioning adjustment plate; 1053. Adjusting screw; 2. Propulsion mechanism; 201. Transmission assembly; 2011. Connecting block; 2012. Servo motor; 2013. Support ring; 202. Main drive assembly; 2021. Transmission plate; 2022. Reinforcing plate; 2023. Transmission gear; 203. Propulsion assembly; 2031. Limiting rotating rod; 2032. Driven gear; 2033. Propulsion screw. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] Example 1:

[0044] refer to Figure 1-7 A screw propulsion device for a precision casting machine tool includes a limiting mechanism 1. The limiting mechanism 1 comprises a fixed component 101, an auxiliary component 102, a moving component 103, a limiting component 104, and a positioning component 105. The auxiliary component 102 is bolted to the bottom of the inner side of the fixed component 101. The moving component 103 is slidably connected to the inner side of the fixed component 101, with its bottom slidably connected to the top of the auxiliary component 102. The limiting component 104 is bolted to the front side of the fixed component 101. The positioning component 105 is threadedly connected to the limiting component 104. At the top, by setting the limiting mechanism 1, the fixed component 101 can be externally connected to the casting precision machine tool, and can cooperate with the auxiliary component 102 to limit the movement of the moving component 103. The moving component 103 can be externally connected to the gradual storage device, and drive the gradual storage device to the processing area of ​​the casting precision machine tool. The limiting component 104 can cooperate with the positioning component 105 to transport the pushing mechanism 2 to a position close to the moving component 103, so that the pushing mechanism 2 can adapt to the position of the moving component 103, further increasing the stability of the moving component 103 during movement.

[0045] like Figure 3 As shown, the fixing component 101 includes a support base 1011, a limiting slide groove 1012, and a fixing mounting plate 1013. The limiting slide groove 1012 is formed on the top of the support base 1011, and the fixing mounting plate 1013 is bolted to both sides of the bottom of the support base 1011. By setting the fixing component 101, the support base 1011 can cooperate with the limiting slide groove 1012 to limit the movement of the moving component 103. The fixing mounting plate 1013 can support and limit the support base 1011, and can also place the support base 1011 on a casting precision machine tool.

[0046] like Figure 4 As shown, the auxiliary component 102 includes a connecting plate 1021, a storage box 1022, and an auxiliary ball 1023. The connecting plate 1021 is bolted to the bottom of the limiting slide groove 1012, the storage box 1022 is bolted to the inner side of the connecting plate 1021, and the auxiliary ball 1023 is movably connected to the inner side of the storage box 1022. The top of the auxiliary ball 1023 passes through the storage box 1022 and is movably connected to the storage box 1022. By setting the auxiliary component 102, the connecting plate 1021 can cooperate with the storage box 1022 to limit the movement of the auxiliary ball 1023, and the auxiliary ball 1023 can cooperate with the storage box 1022 to provide auxiliary support for the movement of the moving component 103, and further increase the stability of the moving component 103 when sliding.

[0047] like Figure 5As shown, the moving component 103 includes a sliding seat 1031, a connecting mounting plate 1032, and a threaded hole 1033. The sliding seat 1031 is slidably connected to the inner side of the limiting slide groove 1012. The bottom of the storage box 1022 is slidably connected to the top of the auxiliary ball 1023. The connecting mounting plate 1032 is bolted to both sides of the top of the sliding seat 1031. The threaded hole 1033 is opened on the front side of the sliding seat 1031. By setting the moving component 103, the sliding seat 1031 can cooperate with the connecting mounting plate 1032 to be externally connected to the bottom of the casting fixing device, and limit the movement of the casting fixing device. The threaded hole 1033 can cooperate with the sliding seat 1031 to be pushed forward as the pushing component 203 rotates.

[0048] like Figure 6 As shown, the limiting component 104 includes a limiting plate 1041, a fixing groove 1042, and a limiting mounting plate 1043. The limiting plate 1041 is snapped onto the front side of the support base 1011. The fixing groove 1042 is formed on the top of the limiting plate 1041. The limiting mounting plate 1043 is bolted to both sides of the front side of the limiting plate 1041. The rear side of the limiting mounting plate 1043 passes through the limiting plate 1041 and is bolted to the front side of the support base 1011. By setting the limiting component 104, the limiting plate 1041 can cooperate with the fixing groove 1042 to support and limit the positioning component 105, and facilitate the height adjustment of the positioning component 105. The limiting mounting plate 1043 can cooperate with the limiting plate 1041 to install the limiting plate 1041 on the front side of the support base 1011.

[0049] like Figure 7 As shown, the positioning assembly 105 includes a positioning plate 1051, a positioning adjustment plate 1052, and an adjustment screw 1053. The positioning plate 1051 is slidably connected to the inner side of the fixing groove 1042. The positioning adjustment plate 1052 is bolted to both sides of the positioning plate 1051. The adjustment screw 1053 is threadedly connected to the top of the positioning adjustment plate 1052. The bottom of the adjustment screw 1053 passes through the positioning adjustment plate 1052 and is threadedly connected to the inner side of the fixing groove 1042. By setting the positioning assembly 105, the positioning plate 1051 can fix and limit the transmission assembly 201. The positioning adjustment plate 1052 can cooperate with the adjustment screw 1053 to adjust the height of the positioning plate 1051, so that the transmission assembly 201 can adapt to the position of the threaded hole 1033.

[0050] Brief description of the usage process: First, install the fixed mounting plate 1013 on the casting precision machine tool to be installed. Then, install the casting fixing device on the connecting mounting plate 1032. Next, install the limiting mounting plate 1043 on the front side of the support base 1011. Then, install the positioning plate 1051 with the pushing mechanism 2 in the fixing groove 1042. Then, rotate the adjusting screw 1053 until the pushing mechanism 2 contacts and is threadedly connected to the threaded hole 1033. Then, the pushing mechanism 2 will drive the sliding seat 1031 forward. The sliding seat 1031 will move forward along the limiting slide groove 1012 and the auxiliary ball 1023 until the casting fixing device is pushed to the machining area of ​​the casting precision machine tool.

[0051] Example 2:

[0052] refer to Figure 8-11 A screw propulsion device for a precision casting machine tool includes a propulsion mechanism 2, which is bolted to the inner side of a limiting mechanism 1. The propulsion mechanism 2 includes a transmission assembly 201, a main drive assembly 202, and a propulsion assembly 203. The transmission assembly 201 is bolted to the rear side of a limiting assembly 104, the main drive assembly 202 is bolted to the rear side of the transmission assembly 201, and the propulsion assembly 203 is bolted to the surface of the transmission assembly 201. The side of the propulsion assembly 203 closest to the main drive assembly 202 engages with the main drive assembly 202, and the rear side of the propulsion assembly 203 is threadedly connected to the front side of a moving assembly 103. By setting the propulsion mechanism 2, the transmission assembly 201 can drive the main drive assembly 202 to rotate after being energized and started. The main drive assembly 202 can cooperate with the propulsion assembly 203 to drive the limiting mechanism 1 to propel and move. Furthermore, multiple propulsion assemblies 203 can further increase the accuracy of the limiting mechanism 1 during propulsion and movement.

[0053] like Figure 9 As shown, the transmission assembly 201 includes a connecting block 2011, a servo motor 2012, and a support ring 2013. The connecting block 2011 is bolted to the rear side of the positioning plate 1051, the servo motor 2012 is bolted to the rear side of the connecting block 2011, and the support ring 2013 is bolted to the surface of the servo motor 2012. By setting the transmission assembly 201, the connecting block 2011 can support and limit the servo motor 2012. After the servo motor 2012 is powered on and started, it can drive the main drive assembly 202 to rotate. The support ring 2013 can cooperate with the servo motor 2012 to support and limit the propulsion assembly 203.

[0054] like Figure 10As shown, the total drive assembly 202 includes a transmission plate 2021, a reinforcing plate 2022, and a transmission gear 2023. The transmission plate 2021 is bolted to the output end of the servo motor 2012. The reinforcing plate 2022 is bolted to the top, bottom, and both sides of the transmission plate 2021. The transmission gear 2023 is bolted to the side of the transmission plate 2021 away from the transmission plate 2021. By setting the transmission plate 2021, it can cooperate with the reinforcing plate 2022 to support and limit the transmission gear 2023. The transmission plate 2021 can cooperate with the servo motor 2012 to drive the reinforcing plate 2022 to rotate the transmission gear 2023. When rotating, the transmission gear 2023 can drive the propulsion assembly 203 to rotate, thereby providing the power required for the rotation of the propulsion assembly 203.

[0055] like Figure 11 As shown, the propulsion assembly 203 includes a limiting rotating rod 2031, a driven gear 2032, and a propulsion screw 2033. The limiting rotating rod 2031 is rotatably connected to the rear side of the support ring 2013, and there are eight limiting rotating rods 2031 in total. The driven gear 2032 is bolted to the rear side of the limiting rotating rod 2031, and the surface of the driven gear 2032 meshes with the surface of the transmission gear 2023. The propulsion screw 2033 is bolted to the rear side of the driven gear 2032, and the surface of the rear side of the propulsion screw 2033 is threaded into the inner side of the threaded hole 1033. The propulsion assembly 203 includes a limiting rotating rod 2031, a driven gear 2032, and a propulsion screw 2033. The limiting rotating rod 2031 is rotatably connected to the rear side of the support ring 2013. There are eight limiting rotating rods 2031 in total. The driven gear 2032 is bolted to the rear side of the limiting rotating rod 2031. The surface of the driven gear 2032 meshes with the surface of the transmission gear 2023. The propulsion screw 2033 is bolted to the rear side of the driven gear 2032. The surface of the rear side of the propulsion screw 2033 is threaded to the inner side of the threaded hole 1033.

[0056] Brief description of the usage process: First, after the push screw 2033 is connected to the limiting mechanism 1, the servo motor 2012 is powered on and started. The servo motor 2012 will drive the transmission gear 2023 to rotate the driven gear 2032. The driven gear 2032 will then rotate the push screw 2033 to move the limiting mechanism 1 forward until the limiting mechanism 1 moves to the desired position.

[0057] refer to Figure 12 The specific steps of applying the above-mentioned method for advancing a screw in a precision casting machine tool are as follows:

[0058] S1. Assembly and conveying: First, install the fixed mounting plate 1013 on the casting precision machine tool to be installed. Then, install the casting fixing device on the connecting mounting plate 1032. Next, install the limiting mounting plate 1043 on the front side of the support base 1011. Then, install the positioning plate 1051 with the pushing mechanism 2 in the fixing groove 1042. Then, rotate the adjusting screw 1053 until the pushing mechanism 2 contacts and is threadedly connected to the threaded hole 1033. Then, the pushing mechanism 2 will drive the sliding seat 1031 forward. The sliding seat 1031 will move forward along the limiting slide groove 1012 and the auxiliary ball 1023 until the casting fixing device is pushed to the processing area of ​​the casting precision machine tool.

[0059] S2. Transmission and propulsion: First, after the propulsion screw 2033 is connected to the limiting mechanism 1, the servo motor 2012 is powered on and started. The servo motor 2012 will drive the transmission gear 2023 to rotate the driven gear 2032. The driven gear 2032 will then rotate the propulsion screw 2033 to move the limiting mechanism 1 forward until the limiting mechanism 1 moves to the desired position.

[0060] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A screw propulsion device for a precision casting machine tool, comprising a limiting mechanism (1) and a propulsion mechanism (2), characterized in that: The propulsion mechanism (2) is bolted to the inside of the limiting mechanism (1). The limiting mechanism (1) includes a fixed component (101), an auxiliary component (102), a moving component (103), a limiting component (104), and a positioning component (105). The auxiliary component (102) is bolted to the bottom inside the fixed component (101). The moving component (103) is slidably connected to the inside of the fixed component (101). The bottom of the moving component (103) is slidably connected to the top of the auxiliary component (102). The limiting component (104) is bolted to the front of the fixed component (101). The positioning component (105) The threaded connection is on the top of the limiting assembly (104). The propulsion mechanism (2) includes a transmission assembly (201), a main drive assembly (202), and a propulsion assembly (203). The transmission assembly (201) is bolted to the rear side of the limiting assembly (104). The main drive assembly (202) is bolted to the rear side of the transmission assembly (201). The propulsion assembly (203) is bolted to the surface of the transmission assembly (201). The side of the propulsion assembly (203) close to the main drive assembly (202) engages with the main drive assembly (202). The rear side of the propulsion assembly (203) is threadedly connected to the front side of the moving assembly (103). The fixing component (101) includes a support base (1011), a limiting slide groove (1012), and a fixing mounting plate (1013). The limiting slide groove (1012) is opened on the top of the support base (1011), and the fixing mounting plate (1013) is bolted to both sides of the bottom of the support base (1011). The auxiliary component (102) includes a connecting plate (1021), a storage box (1022), and an auxiliary ball (1023). The connecting plate (1021) is bolted to the bottom of the limiting slide (1012), the storage box (1022) is bolted to the inside of the connecting plate (1021), the auxiliary ball (1023) is movably connected to the inside of the storage box (1022), and the top of the auxiliary ball (1023) penetrates through the storage box (1022) and is movably connected to the storage box (1022). The moving component (103) includes a sliding seat (1031), a connecting mounting plate (1032), and a threaded hole (1033). The sliding seat (1031) is slidably connected to the inner side of the limiting slide groove (1012). The bottom of the storage box (1022) is slidably connected to the top of the auxiliary ball (1023). The connecting mounting plate (1032) is bolted to both sides of the top of the sliding seat (1031). The threaded hole (1033) is opened on the front side of the sliding seat (1031). The limiting assembly (104) includes a limiting plate (1041), a fixing groove (1042), and a limiting mounting plate (1043). The limiting plate (1041) is snapped onto the front side of the support base (1011). The fixing groove (1042) is opened on the top of the limiting plate (1041). The limiting mounting plate (1043) is bolted to both sides of the front side of the limiting plate (1041). The rear side of the limiting mounting plate (1043) passes through the limiting plate (1041) and is bolted to the front side of the support base (1011). The positioning assembly (105) includes a positioning plate (1051), a positioning adjustment plate (1052), and an adjustment screw (1053). The positioning plate (1051) is slidably connected to the inner side of the fixed groove (1042). The positioning adjustment plate (1052) is bolted to both sides of the positioning plate (1051). The adjustment screw (1053) is threadedly connected to the top of the positioning adjustment plate (1052). The bottom of the adjustment screw (1053) passes through the positioning adjustment plate (1052) and is threadedly connected to the inner side of the fixed groove (1042). The positioning assembly (105) is used to adjust the height of the propulsion mechanism (2) so that the propulsion screw (2033) is precisely aligned with the threaded hole (1033). The transmission assembly (201) includes a connecting block (2011), a servo motor (2012), and a support ring (2013). The connecting block (2011) is bolted to the rear side of the positioning plate (1051), the servo motor (2012) is bolted to the rear side of the connecting block (2011), and the support ring (2013) is bolted to the surface of the servo motor (2012). The power assembly (202) includes a transmission plate (2021), a reinforcing plate (2022), and a transmission gear (2023). The transmission plate (2021) is bolted to the output end of the servo motor (2012) at the rear. The reinforcing plate (2022) is bolted to the top, bottom, and both sides of the transmission plate (2021). The transmission gear (2023) is bolted to the side of the transmission plate (2021) away from the transmission plate (2021). The propulsion assembly (203) includes a limiting rotating rod (2031), a driven gear (2032), and a propulsion screw (2033). The limiting rotating rod (2031) is rotatably connected to the rear side of the support ring (2013). There are eight limiting rotating rods (2031) in total. The driven gear (2032) is bolted to the rear side of the limiting rotating rod (2031). The surface of the driven gear (2032) meshes with the surface of the transmission gear (2023). The propulsion screw (2033) is bolted to the rear side of the driven gear (2032). The surface of the rear side of the propulsion screw (2033) is threaded to the inner side of the threaded hole (1033).

2. A method for advancing a screw in a precision casting machine tool, employing the screw advancing device for a precision casting machine tool as described in claim 1, characterized in that: Includes the following steps: S1. Assembly and conveying: First, install the fixed mounting plate (1013) on the casting precision machine tool to be installed, then install the casting fixing device on the connecting mounting plate (1032), then install the limiting mounting plate (1043) on the front side of the support base (1011), then install the positioning plate (1051) with the push mechanism (2) in the fixing groove (1042), then rotate the adjusting screw (1053) until the push mechanism (2) contacts and is threadedly connected to the threaded hole (1033), then the push mechanism (2) will drive the sliding seat (1031) forward, the sliding seat (1031) will move forward along the limiting slide groove (1012) and the auxiliary ball (1023) until the casting fixing device is pushed to the processing area of ​​the casting precision machine tool; S2. Transmission and propulsion: First, after the propulsion screw (2033) is connected to the limiting mechanism (1), the servo motor (2012) is powered on and started. The servo motor (2012) will drive the transmission gear (2023) to rotate the driven gear (2032). The driven gear (2032) will rotate the propulsion screw (2033) to move the limiting mechanism (1) forward until the limiting mechanism (1) moves to the desired position.

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