Production process of steering shell and milling device for process

Abstract

The invention relates to a steering shell production process and a milling device used for the steering shell production process, and relates to the technical field of machine tool machining, the steering shell production process comprises the following steps: S1, pouring a blank: pouring and forming a blank piece through a mold, the overall size of the blank piece is larger than the required size, and meanwhile, all apertures in the blank piece are smaller than the required size; s2, surface rough milling is conducted, specifically, the surface of the blank piece is subjected to primary milling; s3, drilling is conducted, specifically, a hole pre-cast in the blank is drilled; s4, surface finish milling is conducted, specifically, the surface of the blank is subjected to finish milling, and the size of the blank is made to be the same as the needed size; s5, deburring is conducted, specifically, deburring treatment is conducted on the surface of the blank and the interiors of the holes drilled in the blank; s6, tapping is conducted, specifically, tapping is conducted on the mounting hole; s7, airtightness detection, wherein airtightness detection is conducted on the interior of the shell; s8, post-processing: performing post-processing on the shell qualified in air tightness detection; and S9, packaging is conducted, specifically, the shell obtained after aftertreatment is packaged and boxed. The method has the effect of improving the precision of the shell.

Description

Technical Field

[0001] The present application relates to the field of machine tool processing, and in particular to a production process for a steering housing and a milling device used for the process. Background Art

[0002] The steering housing is a housing for the power steering mechanism. Figure 1 As shown, a power input hole 13 and a power output hole 14 are respectively provided on two side surfaces of the housing 12 , and a plurality of mounting holes 15 are also irregularly provided around the housing 12 .

[0003] The existing power mechanism housing is usually cast, but the cast housing is overall rough and has poor precision. Summary of the invention

[0004] In order to improve the precision of the housing, the present application provides a production process for a steering housing.

[0005] The present application provides a production process for a steering housing using the following technical solutions: A production process for a steering housing comprises the following steps: S1: Casting the blank, casting the blank through the mold, the overall size of the blank is larger than the required size, and all the hole diameters on the blank are smaller than the required size; S2: Surface rough milling: install the blank into the vertical machining center to perform preliminary milling on the surface of the blank, leaving a 0.5-1CM margin for preliminary milling; S3: drilling, drilling holes in the pre-cast blank; S4: Surface finishing milling: finishing milling the surface of the blank to make the size of the blank the same as the required size; S5: Deburring: Deburring the surface of the blank and the holes drilled in the blank; S6: tapping, tapping the mounting hole to make the mounting hole a bolt hole; S7: Airtightness test, airtightness test inside the shell; S8: Post-processing: post-process the shell that has passed the airtightness test; S9: Packaging: Packing the post-processed shell into boxes.

[0006] By adopting the above technical solution, a processing allowance is reserved for the cast blank, and the blank size is made to reach the required size through milling and drilling. Even if there are some areas that are defective during casting, they can be compensated through subsequent milling and drilling, thereby improving the accuracy of the shell.

[0007] Optionally, post-processing includes cleaning, drying and water-based rust prevention. The shell is cleaned after the air-tightness test, and then the cleaned shell is dried and then subjected to water-based rust prevention treatment.

[0008] By adopting the above technical solution, the fine iron filings and dust left on the shell surface due to milling and drilling are cleaned, and then the rust-proof performance of the shell is improved through water-based rust prevention, thereby extending the service life of the shell.

[0009] A milling device for a steering housing, used in a production process of a steering housing, comprises a machine body, a tooling table is arranged in the machine body, a first clamping assembly is arranged on the tooling table, the first clamping assembly comprises a first slide rail, a first slide and a first cylinder, the first slide rail is installed on the tooling table, the first slide rail comprises a first horizontal portion and a first vertical portion, the first horizontal portion is horizontally arranged on the tooling table, the first vertical portion is perpendicular to the first horizontal portion and fixed on the first horizontal portion, the first slide is slidably arranged on the first slide rail, two first cylinders are arranged, the two first cylinders are symmetrically arranged on the first slide along the center of the first slide, and the piston rods of the two first cylinders are both facing the center of the first slide.

[0010] Optionally, the first slide platform includes a first driving platform and a first rotating platform, the first driving platform is slidably disposed on a first slide rail, and the first rotating platform is slidably and rotatably disposed on the first driving platform.

[0011] By adopting the above technical solution, the first clamping assembly is used to clamp the shell and adjust multiple processing surfaces without disassembly and re-fixing, which facilitates drilling and milling in the circumference of the shell.

[0012] Optionally, a second clamping assembly is provided on the workbench, and the second clamping assembly includes a second slide rail, a second slide table and a second cylinder. The second slide rail is installed on the workbench, and the second slide rail includes a second horizontal portion and a second vertical portion. The second horizontal portion is horizontally arranged on the workbench, and the second horizontal portion and the first horizontal portion are perpendicular to each other and are connected to each other at the center position of the workbench. The second vertical portion is perpendicular to the second horizontal portion and fixed on the second horizontal portion. The second slide table is slidably arranged on the second slide rail. Two second cylinders are provided, and the two second cylinders are symmetrically arranged on the second slide table along the center of the second slide table, and the piston rods of the two second cylinders are both facing the center of the second slide table.

[0013] Optionally, the second slide platform includes a second driving platform and a second rotating platform, the second driving platform is slidably disposed on the second slide rail, and the second rotating platform is slidably and rotatably disposed on the second driving platform.

[0014] By adopting the above technical solution, the second clamping assembly can cooperate with the first clamping assembly to replace the shell, so that the surface of the shell clamped by the first clamping assembly can also be milled and drilled.

[0015] Optionally, discharge holes are provided at both ends of the first slide rail and the second slide rail in the length direction, and shovel blocks are fixedly provided at both ends of the first drive platform facing the first slide rail in the length direction and at both ends of the second drive platform facing the second slide rail in the length direction.

[0016] By adopting the above technical solution, the shovel block can discharge the iron chips dropped into the first slide rail and the second slide rail during milling and drilling through the discharge hole, thereby reducing the influence of the iron chips on the sliding of the first slide or the second slide.

[0017] Optionally, a first baffle is slidably arranged in the first horizontal part, and the first baffle enters or leaves the first horizontal part by sliding, and the first baffle is arranged on the side of the center of the workbench facing the first vertical part; a second baffle is slidably arranged in the second horizontal part, and the second baffle enters or leaves the second horizontal part by sliding, and the second baffle is arranged on the side of the center of the workbench facing the second vertical part.

[0018] By adopting the above technical solution, when the second slide is located at the center position of the workbench, the first baffle plate can prevent the first slide from sliding into the center position of the workbench, thereby reducing the collision between the first slide and the second slide. When the first slide is located at the center position of the workbench, the second baffle plate can prevent the second slide from sliding into the center position of the workbench, thereby reducing the collision between the second slide and the first slide.

[0019] Optionally, a first driving block is slidably provided at one end of the second horizontal portion away from the second vertical portion, and the first driving block is connected to the first baffle. When the second slide is located at the center of the workbench, the shovel block on the second slide drives the first driving block to drive the first baffle to slide and insert into the first horizontal portion; a second driving block is slidably provided at one end of the first horizontal portion away from the first vertical portion, and the second driving block is connected to the second baffle. When the first slide is located at the center of the workbench, the shovel block on the first slide drives the second driving block to drive the second baffle to slide and insert into the second horizontal portion.

[0020] Optionally, a clamping member is installed on the piston rods of the first cylinder and the second cylinder, and the clamping member is a liquid bladder.

[0021] By adopting the above technical solution, the liquid bladder has the ability to deform and can be used for shells of different shapes.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. The blank is cast with a reserved machining allowance, and the blank size is made to the required size through milling and drilling. Even if there are defects in some areas during casting, they can be compensated by subsequent milling and drilling, thus improving the accuracy of the shell; 2. Clean the fine iron filings and dust left on the shell surface due to milling and drilling, and then use water-based rust prevention to improve the shell's rust resistance and extend the shell's service life; 3. The first clamping assembly is used to clamp the shell and adjust multiple processing surfaces without disassembly and re-fixation, which facilitates drilling and milling in the circumference of the shell; 4. The first clamping assembly is used to clamp the shell and adjust multiple processing surfaces without disassembly and re-fixation, which facilitates drilling and milling in the circumference of the shell; 5. The shovel block can discharge the iron chips dropped into the first slide rail and the second slide rail by milling and drilling through the discharge hole, thereby reducing the influence of the iron chips on the sliding of the first slide or the second slide; 6. When the second slide is located at the center of the workbench, the first baffle plate can prevent the first slide from sliding into the center of the workbench, thereby reducing the collision between the first slide and the second slide. When the first slide is located at the center of the workbench, the second baffle plate can prevent the second slide from sliding into the center of the workbench, thereby reducing the collision between the second slide and the first slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the steering housing.

[0024] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram of the tooling table of this application.

[0026] Figure 4 yes Figure 2 Magnified view of part A in the middle.

[0027] Explanation of the accompanying drawings: 1. body; 2. workbench; 3. first clamping assembly; 31. first slide rail; 311. first horizontal portion; 312. first vertical portion; 32. first slide; 321. first drive platform; 322. first rotating platform; 33. first cylinder; 4. second clamping assembly; 41. second slide rail; 411. second horizontal portion; 412. second vertical portion; 42. second slide; 421. second drive platform; 422. second rotating platform; 43. second cylinder; 5. discharge hole; 6. shovel block; 7. first baffle; 8. second baffle; 9. first drive block; 10. second drive block; 11. clamping member; 12. shell; 13. power input hole; 14. power output hole; 15. mounting hole. DETAILED DESCRIPTION

[0028] The following is combined with Figure 2-4 This application is described in further detail.

[0029] First of all, it should be noted that in the description of this application, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, a limited connection such as an interference fit, a transition fit, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0030] The embodiment of the present application discloses a production process of a steering housing, which comprises the following steps: S1: casting a blank, forming a blank by casting a mold, wherein the overall size of the blank is larger than the required size, and all apertures on the blank are smaller than the required size; S2: surface rough milling, installing the blank into a vertical machining center to perform preliminary milling on the surface of the blank, and reserving a margin of 0.5-1CM for preliminary milling; S3: Drilling, drilling holes in the pre-cast blank; S4: Surface milling, milling the blank surface to make the blank size the same as the required size; S5: Deburring, deburring the blank surface and the holes drilled on the blank; S6: Tapping, tapping the mounting holes to make the mounting holes bolt holes; S7: Air tightness test, air tightness test the inside of the shell; S8: Post-processing: post-processing the shell that has passed the air tightness test; post-processing includes cleaning, drying and water-based rust prevention, cleaning the shell after the air tightness test, and then drying the cleaned shell and performing water-based rust prevention S9: Packaging: packing the post-processed shell. The cast blank reserves machining allowance, and the blank size is made to the required size through milling and drilling. Even if there are defects in some areas during casting, they can be compensated by subsequent milling and drilling, which improves the accuracy of the shell.

[0031] A milling device for a steering housing, referring to Figure 2 and Figure 3, used for the production process of steering housing, including a machine body 1, the machine body 1 in this embodiment is a vertical machining center with multiple functions such as milling, turning, drilling, etc., a tooling table 2 is detachably provided on the tooling position in the machine body 1 by bolts, a first clamping assembly 3 is fixed on the tooling table 2, the first clamping assembly 3 includes a first slide rail 31 installed on the tooling table 2, a first slide 32 slidably arranged on the first slide rail 31, and two first cylinders 33 installed on the first slide 32, the first slide rail 31 includes a first horizontal portion 311 and a first vertical portion 312, the first horizontal portion 311 is horizontally fixedly arranged on the tooling table 2, the first vertical portion 312 is perpendicular to the first horizontal portion 311 and fixed on the first horizontal portion 311, the first slide 32 is driven by a motor to drive a driving wheel to slide on the first horizontal portion 311, and is driven by an electric cylinder to slide on the first vertical portion 312 and the first slide 32 is lowered from the first slide rail 31 by the cooperation of an anti-slip block and an anti-slip groove, the first The slide 32 includes a first driving platform 321 and a first rotating platform 322. The first driving platform 321 is slidably arranged on the first slide rail 31, and the first rotating platform 322 is slidably and rotatably arranged on the first driving platform 321. A pneumatic push cylinder and a rotating cylinder are arranged on the first driving platform 321. The pneumatic push cylinder drives the first rotating platform 322 to slide toward or away from the first driving platform 321, and the rotating cylinder drives the first rotating platform 322 to rotate on the first driving platform 321. The first rotating platform 322 is U-shaped as a whole. Two first cylinders 33 are arranged on the first slide 32 symmetrically along the center of the first slide 32. The two first cylinders 33 are respectively arranged at both ends of the U-shaped first rotating platform 322 and are arranged opposite to each other. The piston rods of the two first cylinders 33 are both facing the center of the first slide 32. The first clamping assembly 3 is used to clamp the shell and adjust multiple processing surfaces without disassembly and re-fixing, which is convenient for drilling and milling in the circumference of the shell.

[0032] Reference Figure 2 and Figure 3A second clamping assembly 4 is provided on the tooling table 2. The second clamping assembly 4 includes a second slide rail 41 installed on the tooling table 2, a second slide 42 slidably arranged on the second slide rail 41, and a second cylinder 43 installed on the second slide 42. The second slide rail 41 includes a second horizontal portion 411 and a second vertical portion 412. The second horizontal portion 411 is horizontally arranged on the tooling table 2. The second horizontal portion 411 and the first horizontal portion 311 are perpendicular to each other and are connected to each other at the center position of the tooling table 2. The second vertical portion 412 is perpendicular to the second horizontal portion 411 and is fixed on the second horizontal portion 411. The second slide 42 drives the driving wheel to slide on the second horizontal portion 411 through a motor, and slides on the second vertical portion 412 through an electric cylinder drive, and the second slide 42 is lowered from the second slide rail 41 through the cooperation of an anti-slip block and an anti-slip groove. The second slide 42 includes a second driving platform 421 and a second rotating platform 422. The second driving platform 421 is slidably arranged on the second slide rail 41. The second rotating table 422 is slidably and rotatably arranged on the second driving table 421, and the second driving table 421 is provided with a pneumatic push cylinder and a rotating cylinder. The pneumatic push cylinder drives the second rotating table 422 to slide toward or away from the second driving table 421, and the rotating cylinder drives the second rotating table 422 to rotate on the first driving table 321. The second rotating table 422 is U-shaped as a whole. There are two second cylinders 43. The two second cylinders 43 are symmetrically arranged on the second slide 42 along the center of the first slide 32. The two second cylinders 43 are respectively arranged at both ends of the U-shaped second rotating table 422 and are arranged opposite to each other. The piston rods of the two second cylinders 43 are both facing the center of the second slide 42. The setting of the second clamping assembly 4 can cooperate with the first clamping assembly 3 to perform the displacement of the shell, so that the surface of the shell clamped by the first clamping assembly 3 can also be milled and drilled. At the same time, the second clamping assembly 4 also has multi-directional rotation, which can clamp the shell, so that the shell can be milled on multiple surfaces by rotation.

[0033] Reference Figure 3 and Figure 4 Discharge holes 5 are provided at both ends of the first slide rail 31 and the second slide rail 41 in the length direction. Shovel blocks 6 are fixedly provided on the first drive platform 321 towards both ends of the first slide rail 31 in the length direction and on the second drive platform 421 towards both ends of the second slide rail 41 in the length direction. The shovel block 6 is arc-shaped on the side away from the first drive platform 321 or the second drive platform 421. Iron chips can be guided along the arc surface of the shovel block 6 away from the first drive block 9 or the second drive block 10. The shovel block 6 can discharge iron chips that fall into the first slide rail 31 and the second slide rail 41 during milling and drilling through the discharge holes 5, thereby reducing the influence of iron chips on the sliding of the first slide table 32 or the second slide table 42.

[0034] Reference Figure 3 and Figure 4A first baffle 7 is slidably disposed in the first horizontal portion 311, and the first baffle 7 enters or leaves the first horizontal portion 311 by sliding, and the first baffle 7 is disposed at the center of the tooling table 2 toward the first vertical portion 312; a second baffle 8 is slidably disposed in the second horizontal portion 411, and the second baffle 8 enters or leaves the second horizontal portion 411 by sliding, and the second baffle 8 is disposed at the center of the tooling table 2 toward the second vertical portion 412; the second horizontal portion 411 is away from the second vertical portion 41 2 is slidably provided with a first driving block 9 at one end, the first driving block 9 is connected to the first baffle plate 7 by abutting, an elastic member is provided between the first baffle block and the tooling table 2, the elastic member drives the first baffle block to be located outside the first slide table 32 under normal conditions, and the first driving block 9 is driven by the elastic force of the elastic member to insert into the second slide rail 41, and the first driving block 9 is provided with a wedge-shaped surface toward the center direction of the tooling table 2; the first horizontal portion 311 is slidably provided with a second driving block 10 at one end away from the first vertical portion 312, and the second driving block 10 is slidably provided with a first driving block 10 at one end away from the first vertical portion 312, and the second driving block 10 is slidably provided with a first driving block 10 at one end away from the first vertical portion 312, and the first ... horizontal portion 311, and the first driving block 10 is slidably provided with a first driving block 10 at one end The second baffle plate 8 is connected by abutment, and an elastic member is arranged between the second baffle plate and the tooling table 2. The elastic member drives the second baffle plate 8 to be located outside the second slide table 42 under normal conditions, and the elastic force of the elastic member drives the second driving block 10 to be inserted into the first slide rail 31. The second driving block 10 has a wedge-shaped surface toward the center direction of the tooling table 2. When the second slide table 42 is located at the center of the tooling table 2, the shovel block 6 on the second slide table 42 drives the first driving block 9 to slide and drive the first baffle plate 7 to slide and insert. The shovel block 6 on the first slide 32 drives the second driving block 10 to slide and drive the second baffle plate 8 to slide and insert into the second horizontal portion 411, thereby blocking the first slide 32 from entering the center position of the tooling table 2 and reducing the collision between the first slide 32 and the second slide 42; when the first slide 32 is located at the center position of the tooling table 2, the shovel block 6 on the first slide 32 drives the second driving block 10 to slide through the abutting wedge surface to drive the second baffle plate 8 to slide and insert into the second horizontal portion 411, thereby blocking the second slide 42 from entering the center position of the tooling table 2 and reducing the collision between the second slide 42 and the first slide 32.

[0035] Reference Figure 3 and Figure 4 A clamping member 11 is installed on the piston rod of the first cylinder 33 and the second cylinder 43. The clamping member 11 is a liquid bladder filled with liquid. At the same time, the liquid bladder is connected to a heating device and a freezing device. When the shell is clamped and fixed, the liquid is frozen into a solid by the freezing device, thereby reducing the probability of displacement of the shell during processing. When the shell is processed, the cooling device continuously cools the liquid bladder, thereby reducing the probability of displacement of the shell caused by melting of the liquid. At the same time, the cold air generated by the cooling device can be transmitted to the shell, reducing the heat in the milling and drilling area of ​​the shell, thereby playing the role of a coolant; when the shell processing is completed and the shell needs to be replaced, the liquid bladder is heated by the heating device to melt the solid in the liquid bladder into liquid.

[0036] The implementation principle of the embodiment of the present application is as follows: the first slide 32 is moved to the center of the tooling table 2, the blank is clamped by the first clamping mechanism, the blank fixed by the first clamping mechanism is rotated, so as to perform rough milling on multiple faces of the blank, after the rough milling of the remaining faces is completed, the shell is clamped by the second clamping mechanism, and the shell is separated from the first clamping mechanism, the first slide 32 is slid onto the first vertical portion 312, and the second slide 42 is slid to the center of the tooling table 2, and the two faces of the blank clamped by the first clamping mechanism are rough milled. After the roughing of the blank is completed, the second clamping mechanism is used to drive the shell to rotate and drill holes in the shell. After that, the shell is transferred to the first clamping mechanism and the two surfaces of the blank clamped by the second clamping mechanism are drilled. After that, the shell blank is driven to rotate by the first clamping mechanism for fine milling and then the shell is transferred to the second clamping mechanism for fine milling. Finally, the shell is driven to rotate by the second clamping mechanism for tapping the shell, and then the shell is transferred to the first clamping mechanism for tapping. Rough milling, drilling, fine milling and tapping are completed in the machine body 1.

[0037] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. A production process for a steering housing, comprising the following steps: S1: Casting the blank, casting the blank through the mold, the overall size of the blank is larger than the required size, and all the hole diameters on the blank are smaller than the required size; S2: Surface rough milling: install the blank into the vertical machining center to perform preliminary milling on the surface of the blank, leaving a 0.5-1CM margin for preliminary milling; S3: drilling, drilling holes in the pre-cast blank; S4: Surface finishing milling: finishing milling the surface of the blank to make the size of the blank the same as the required size; S5: Deburring: Deburring the surface of the blank and the holes drilled in the blank; S6: tapping, tapping the mounting hole to make the mounting hole a bolt hole; S7: Airtightness test, airtightness test inside the shell; S8: Post-processing: post-process the shell that has passed the airtightness test; S9: Packaging: Packing the post-processed shell into boxes.

2. A production process for a steering housing according to claim 1, characterized in that: Post-processing includes cleaning, drying and water-based rust prevention. The shell is cleaned after the airtightness test, and then the cleaned shell is dried and then subjected to water-based rust prevention treatment.

3. A milling device for a steering housing, used in the production process of the steering housing according to claim 2, characterized in that: The invention comprises a machine body (1), wherein a workbench (2) is arranged inside the machine body (1), and a first clamping assembly (3) is arranged on the workbench (2), wherein the first clamping assembly (3) comprises a first slide rail (31), a first slide table (32) and a first cylinder (33), wherein the first slide rail (31) is installed on the workbench (2), wherein the first slide rail (31) comprises a first horizontal portion (311) and a first vertical portion (312), wherein the first horizontal portion (311) is horizontally arranged on the workbench (2), wherein the first vertical portion (312) is perpendicular to the first horizontal portion (311) and fixedly arranged on the first horizontal portion (311), wherein the first slide table (32) is slidably arranged on the first slide rail (31), and wherein two first cylinders (33) are arranged symmetrically on the first slide table (32) along the center of the first slide table (32), and wherein the piston rods of the two first cylinders (33) are both oriented toward the center of the first slide table (32).

4. A milling device for a steering housing according to claim 3, characterized in that: The first slide table (32) comprises a first driving table (321) and a first rotating table (322); the first driving table (321) is slidably disposed on the first slide rail (31); and the first rotating table (322) is slidably and rotatably disposed on the first driving table (321).

5. A milling device for a steering housing according to claim 4, characterized in that: A second clamping assembly (4) is arranged on the tooling table (2), the second clamping assembly (4) comprising a second slide rail (41), a second slide table (42) and a second cylinder (43), the second slide rail (41) being mounted on the tooling table (2), the second slide rail (41) comprising a second horizontal portion (411) and a second vertical portion (412), the second horizontal portion (411) being arranged horizontally on the tooling table (2), the second horizontal portion (411) being perpendicular to the first horizontal portion (311) The second vertical portion (412) is perpendicular to the second horizontal portion (411) and fixed on the second horizontal portion (411). The second slide (42) is slidably arranged on the second slide rail (41). Two second cylinders (43) are provided. The two second cylinders (43) are symmetrically arranged on the second slide (42) along the center of the second slide (42). The piston rods of the two second cylinders (43) are both oriented toward the center of the second slide (42).

6. A milling device for a steering housing according to claim 5, characterized in that: The second slide table (42) comprises a second drive table (421) and a second rotating table (422); the second drive table (421) is slidably disposed on the second slide rail (41); and the second rotating table (422) is slidably and rotatably disposed on the second drive table (421).

7. A milling device for a steering housing according to claim 6, characterized in that: Both ends of the first slide rail (31) in the length direction and both ends of the second slide rail (41) in the length direction are provided with discharge holes (5), and both ends of the first drive platform (321) in the length direction of the first slide rail (31) and both ends of the second drive platform (421) in the length direction of the second slide rail (41) are fixed with shovel blocks (6).

8. The milling device for a steering housing according to claim 7, characterized in that: A first baffle (7) is slidably arranged in the first horizontal portion (311), the first baffle (7) enters or leaves the first horizontal portion (311) by sliding, and the first baffle (7) is arranged at a side of the center of the tooling table (2) facing the first vertical portion (312); a second baffle (8) is slidably arranged in the second horizontal portion (411), the second baffle (8) enters or leaves the second horizontal portion (411) by sliding, and the second baffle (8) is arranged at a side of the center of the tooling table (2) facing the second vertical portion (412).

9. A milling device for a steering housing according to claim 8, characterized in that: A first driving block (9) is slidably provided at one end of the second horizontal portion (411) away from the second vertical portion (412), and the first driving block (9) is connected to the first baffle (7). When the second slide (42) is located at the center of the tooling table (2), the shovel block (6) on the second slide (42) drives the first driving block (9) to drive the first baffle (7) to slide and insert into the first horizontal portion (311); a second driving block (10) is slidably provided at one end of the first horizontal portion (311) away from the first vertical portion (312), and the second driving block (10) is connected to the second baffle (8). When the first slide (32) is located at the center of the tooling table (2), the shovel block (6) on the first slide (32) drives the second driving block (10) to drive the second baffle (8) to slide and insert into the second horizontal portion (411).

10. A milling device for a steering housing according to claim 9, characterized in that: A clamping member (11) is mounted on the piston rods of the first cylinder (33) and the second cylinder (43), and the clamping member (11) is a liquid bladder.

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