A hydraulic swivel press device for heavy steering gear housings

Abstract

The present application relates to a kind of hydraulic rotary compression devices special for heavy steering gear housing, it includes cylinder, nut, pressure block, piston head, piston rod, rotary guide part, steel ball, path slot, locating block, piston groove is designed in the middle of cylinder lower end, piston head is slidably installed in piston groove, piston head upper end is installed with piston rod, the upper end of piston rod is slidably penetrated the upper end bottom of piston groove of cylinder, the upper end of piston rod is clamped with pressure block and the outer side of pressure block is fixed by screwing nut on the end of piston rod, a plurality of locating blocks are installed on the upper end of cylinder, and pressure block includes circular main body and trapezoidal pressure head, and a plurality of trapezoidal pressure heads are designed on the circular main body. Advantage is that design is ingenious, structure is reasonable and compact, for the general-purpose of this kind of parts, positioning precision is high, rigidity is good, save space, meet production and processing demand.

Description

Technical Field

[0001] This invention relates to the field of steering gear housing processing, and more specifically to a hydraulic rotary clamping device for heavy-duty steering gear housings. Background Technology

[0002] As a crucial component of the steering system, the heavy-duty steering gear housing must meet high standards in its design, material selection, manufacturing process, and quality control. Whether using high-strength cast iron or aluminum alloy, the ultimate goal is to ensure the stability and durability of the steering system, meeting the operational requirements of heavy-duty vehicles under various conditions. The manufacturing of heavy-duty steering gear housings typically employs a casting process, where molten metal is poured into a precise mold. This is followed by cooling, cleaning, and machining to ensure the housing has accurate dimensions and a good surface finish. In recent years, the machining industry has demanded increasingly higher precision and efficiency in processing heavy-duty steering gear housings. Simultaneously, rising labor costs have rendered traditional positioning and clamping methods labor-intensive, inefficient in loading and unloading parts, and insufficient in clamping force to meet positioning requirements. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a hydraulic rotary clamping device specifically designed for heavy-duty steering gear housings. This device features an ingenious design and a rational, compact structure, meeting the production and processing requirements of this type of product.

[0004] The technical solution of this invention: A hydraulic rotary clamping device for heavy-duty steering gear housings is disclosed. The heavy-duty steering gear housing includes a vertical flow channel and a horizontal flow channel. The vertical flow channel is connected to its upper and lower end faces respectively, and one end of the horizontal flow channel is connected to its corresponding end face. The horizontal flow channel is connected to the vertical flow channel near its middle position. Several positioning grooves are provided around the outer perimeter of the lower end of the vertical flow channel, and a boss is provided above the corresponding positioning groove on the inner side of the lower end of the vertical flow channel. The device includes a cylinder body, a nut, a pressure block, a piston head, a piston rod, a rotary guide, a steel ball, a path groove, and positioning blocks. A piston groove is designed in the middle of the lower end of the cylinder body. The piston head is slidably installed in the piston groove. A piston rod is installed at the upper end of the piston head, and the upper end of the piston rod slides through the bottom of the upper end of the piston groove in the cylinder body. A pressure block is clamped at the upper end of the piston rod, and the outer side of the pressure block is fixed to the end of the piston rod by a nut. Several positioning blocks are installed around the upper perimeter of the cylinder body. Each pressure block includes a circular body and trapezoidal pressure heads, with several trapezoidal pressure heads designed around the circular body. The piston... The lower end of the piston head has a circular groove in the middle. Several semi-cylindrical grooves are arranged around the inner side of the lower end of the circular groove, with the bottom of each semi-cylindrical groove having a hemispherical base. The rotating guide includes a fixed plate and a vertical shaft. The vertical shaft is installed in the middle of the upper end of the fixed plate, and several path grooves are designed on the outer side of the vertical shaft. The vertical shaft of the rotating guide slides within the circular groove of the piston head. Half of the steel ball is located within the semi-cylindrical groove, and the other half is located within the path groove on the corresponding side of the rotating guide. The path grooves include an upper vertical semi-circular groove, a lower vertical semi-circular groove, and a spiral semi-circular groove. The lower end of the upper vertical semi-circular groove is connected to the lower vertical semi-circular groove via the spiral semi-circular groove. The upper end of the upper vertical semi-circular groove is connected to the upper end face of the vertical shaft. The positioning block is supported in the positioning groove of the heavy-duty steering gear housing. When the trapezoidal pressure head of the pressure block extends into the vertical flow channel, it is offset from the boss of the heavy-duty steering gear housing. When the piston rod descends, it rotates at a certain angle, and the trapezoidal pressure head of the pressure block presses against the boss. An annular groove is designed on the outer side of the central circular groove 42 at the lower end of the piston head. An annular pressure block is installed in the annular groove, and the inner side of the upper end of the annular pressure block covers the lower end of the semi-cylindrical groove.

[0005] The positioning groove is V-shaped, and the positioning block is set as an isosceles trapezoidal block that is narrow at the top and wide at the bottom, and the inclined surfaces on both sides of the upper end of the positioning block are designed with several serrated teeth.

[0006] The design includes three positioning grooves, three bosses, three positioning blocks, three steel balls, three path grooves, three semi-cylindrical grooves, and three trapezoidal pressure heads on the pressure block.

[0007] The upper end of the pressure block is designed with a hemispherical groove, and the lower end of the nut is designed with a downward convex hemispherical protrusion. The nut is locked in place with the hemispherical groove of the pressure block through the downward convex hemispherical protrusion.

[0008] The pressure block is also designed with three threaded holes around its circumference. A positioning screw is rotatably installed in the threaded hole. After the positioning screw is screwed into the threaded hole, it presses against the outer side of the upper end of the piston rod.

[0009] The lower end of the cylinder is sealed and installed on the hydraulic worktable of the machine tool machining center. A transverse oil passage and a vertical oil passage are designed inside one side of the cylinder. The outer side of the transverse oil passage connects to the outer side of the cylinder body, and the inner side of the transverse oil passage connects to the upper end of the piston groove. The upper end of the vertical oil passage connects to the transverse oil passage near the opening, and the lower end of the transverse oil passage connects to the lower end face of the cylinder body. Two hydraulic oil holes are designed on the hydraulic worktable. One hydraulic oil hole connects to the lower end of the transverse oil passage, and the other hydraulic oil hole connects to the opening of the piston groove. The fixing plate of the rotary guide is fixed on the hydraulic worktable.

[0010] The advantages of this invention are its ingenious design, reasonable and compact structure, strong versatility for this type of part, high positioning accuracy, good rigidity, space saving, and ability to meet production and processing needs. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0012] Figure 2 This is a partial cross-sectional schematic diagram of the present invention.

[0013] Figure 3 This is a top view schematic diagram of the present invention.

[0014] Figure 4 This is a bottom view schematic diagram of the present invention.

[0015] Figure 5 This is a schematic diagram of the rotary guide portion of the present invention.

[0016] Figure 6 This is a three-dimensional schematic diagram of the heavy-duty steering gear housing of the present invention. Figure 1 .

[0017] Figure 7 This is a three-dimensional schematic diagram of the heavy-duty steering gear housing of the present invention. Figure 2 .

[0018] Figure 8 yes Figure 6 Mid-top sectional view.

[0019] Figure 9 This is a schematic diagram of the heavy-duty steering gear housing (blank) after clamping in this invention. Detailed Implementation

[0020] See attached document Figure 1-9A hydraulic rotary clamping device for heavy-duty steering gear housings is disclosed. The heavy-duty steering gear housing includes a vertical flow channel 101 and a horizontal flow channel 102. The vertical flow channel 101 is connected to its upper and lower end faces respectively. One end of the horizontal flow channel 102 is connected to its corresponding end face, and the horizontal flow channel 102 is connected to the vertical flow channel 101 near its middle position. Several positioning grooves 103 are provided around the outer perimeter of the lower end of the vertical flow channel 101, and a boss 104 is provided above the positioning grooves 103 on the inner side of the lower end of the vertical flow channel 101. The device includes a cylinder body 1, a nut 2, and a clamping block 3. The cylinder body 1 comprises a piston head 4, a piston rod 5, a rotary guide 6, a steel ball 7, a path groove 8, and a positioning block 9. A piston groove 10 is designed in the middle of the lower end of the cylinder body 1. The piston head 4 is slidably installed in the piston groove 10. A piston rod 5 is installed on the upper end of the piston head 4. The upper end of the piston rod 5 slides through the bottom of the upper end of the piston groove 10 of the cylinder body 1. A pressure block 3 is clamped onto the upper end of the piston rod 5, and the outer side of the pressure block 3 is fixed to the end of the piston rod 5 by a nut 2. Several positioning blocks 9 are installed around the upper end of the cylinder body 1. The pressure block 3 includes a circular main body and a trapezoidal pressure head 31. Several trapezoidal... The piston head 4 has a circular groove 42 at its lower end, and a plurality of semi-cylindrical grooves are arranged around the inner side of the lower end of the circular groove 42, with the bottom of the semi-cylindrical grooves being hemispherical. The rotary guide 6 includes a fixed plate and a vertical shaft 61. The vertical shaft 61 is installed in the middle of the upper end of the fixed plate, and a plurality of path grooves 8 are designed on the outer side of the vertical shaft 61. The vertical shaft 61 of the rotary guide 6 slides within the circular groove 42 of the piston head 4, with half of the steel ball 7 located within the semi-cylindrical groove and the other half of the steel ball 7 located within the path groove 8 on the corresponding side of the rotary guide 6. The groove 8 includes an upper vertical semi-circular groove, a lower vertical semi-circular groove, and a spiral semi-circular groove. The lower end of the upper vertical semi-circular groove is connected to the lower vertical semi-circular groove through the spiral semi-circular groove. The upper end of the upper vertical semi-circular groove is connected to the upper end face of the vertical shaft 61. The positioning block 9 is supported in the positioning groove 103 of the heavy-duty steering gear housing. When the trapezoidal pressure head 31 of the pressure block 3 extends into the vertical flow channel 101, it is offset from the boss 104 of the heavy-duty steering gear housing. When the piston rod 5 moves downward and presses down with the pressure block 3, it will rotate at a certain angle and the trapezoidal pressure head 31 of the pressure block 3 will press down on the boss 104. An annular groove is also designed on the outer side of the opening of the middle circular groove 42 at the lower end of the piston head 4. An annular pressure block 41 is installed in the annular groove. The inner side of the upper end of the annular pressure block 41 covers the lower end of the semi-cylindrical groove. The annular pressure block design prevents the steel ball from falling off, which is a safety design.

[0021] The positioning groove 103 is V-shaped, and the positioning block 9 is an isosceles trapezoidal block that is narrower at the top and wider at the bottom. The inclined surfaces on both sides of the upper end of the positioning block 9 are designed with several serrated teeth. This design ensures stable positioning.

[0022] The positioning groove 103 has three sections, the boss 104 has three sections, the positioning block 9 has three sections, the steel ball 7 has three sections, the path groove 8 has three sections, the semi-cylindrical groove has three sections, and the trapezoidal pressure head 31 of the pressure block 3 has three sections. The design of three sections for each section is to complement the inherent structure of the heavy-duty steering gear housing, resulting in more precise and stable guiding, positioning, and clamping.

[0023] The upper end of the pressure block 3 is designed with a hemispherical groove, and the lower end of the nut 2 is designed with a downwardly convex hemispherical protrusion. The nut 2 is locked in place with the hemispherical groove of the pressure block 3 through the downwardly convex hemispherical protrusion. This design ensures an effective locking fit between the nut and the upper end of the pressure block. The upper end of the piston rod is designed with an annular step, and the pressure block fits perfectly onto the annular step. The upper part of the piston rod at the annular step is designed as a threaded rod for screwing the nut in. This is existing technology, and this invention is described briefly.

[0024] The pressure block 3 is also designed with three threaded holes around its circumference. A positioning screw is rotatably installed in each threaded hole, pressing against the outer side of the upper end of the piston rod 5 after being screwed into the threaded hole. A corresponding positioning groove is also designed on the piston rod, and the positioning screw fits precisely into the corresponding positioning groove. This ensures that the angle of the pressure head of the pressure block is consistent with the lower path groove. In this invention, three path grooves are designed; rotating the pressure head 60 degrees allows for misalignment or positioning above or below the boss.

[0025] The lower end of the cylinder body 1 is sealed and mounted on the hydraulic worktable of the machine tool machining center. A transverse oil passage and a vertical oil passage are designed on one side of the cylinder body 1. The outer side of the transverse oil passage connects to the outer surface of the cylinder body 1, and the inner side connects to the upper end of the piston groove 10. The upper end of the vertical oil passage connects to the transverse oil passage near its opening, and the lower end of the transverse oil passage connects to the lower end face of the cylinder body 1. Two hydraulic oil holes are designed on the hydraulic worktable; one connects to the lower end of the transverse oil passage, and the other connects to the opening of the piston groove 10. The fixing plate of the rotating guide part 6 is fixed to the hydraulic worktable. The opening connecting the outer side of the transverse oil passage to the outer side of the cylinder body is a process port, which is conventionally sealed with a plug. A sealed fit is also used between the cylinder body and the hydraulic worktable, as well as between the upper end of the piston rod and the cylinder body, and between the piston head and the piston groove inside the cylinder body. Sealing rings are typically used for sealing; this is existing technology, and this invention is simply described below. Figure 9 To facilitate the placement of the heavy-duty steering gear housing on the hydraulic worktable, a positioning post is installed. The positioning post is located in the V-groove on the outside of the heavy-duty steering gear housing. Based on the structure of the heavy-duty steering gear housing itself, a directional positioning post for quick positioning is designed to assist the operator in quickly and conveniently placing the heavy-duty steering gear housing blank to be processed.

[0026] In use, the product is installed on a hydraulic worktable. The lower end of the piston groove in the cylinder begins supplying oil to the area below the piston head, pushing the piston head upwards. During this upward movement, under the action of the steel ball and the path groove, the piston head rotates at a certain angle. The pressure block rotates and rises under the action of the piston rod. Once in position, the vertical oil passage of the heavy-duty steering gear housing can be fitted onto the pressure block. During this fitting process, the trapezoidal pressure head of the pressure block misaligns with the boss within the vertical oil passage of the heavy-duty steering gear housing, causing the positioning groove of the heavy-duty steering gear housing to engage with the positioning block. At this point, the hydraulic... The pressure table supplies oil to the piston head via vertical and horizontal oil passages, while simultaneously depressurizing the hydraulic oil below the piston head to control its downward movement. The piston head then rotates in the opposite direction under the action of the steel balls and the path groove, rotating the pressure block above it at a set angle. This ensures that the trapezoidal pressure head of the pressure block presses against the protrusion within the vertical oil passage of the corresponding heavy-duty steering gear housing, achieving rapid, precise, and effective clamping. This allows for internal clamping of the heavy-duty steering gear housing without interfering with external machining operations, ensuring safety and reliability. Disassembly is simply a matter of reversing the operation.

Claims

1. A hydraulic rotary clamping device for a heavy-duty steering gear housing, the heavy-duty steering gear housing comprising a vertical flow channel and a horizontal flow channel, the upper and lower ends of the vertical flow channel being connected to the upper and lower end faces respectively, one end of the horizontal flow channel being connected to its corresponding end face, and the horizontal flow channel being connected to the vertical flow channel near the middle position; a plurality of positioning grooves are provided around the outer perimeter of the lower port of the vertical flow channel, and a boss is provided above the positioning grooves on the inner side of the lower port of the vertical flow channel; characterized in that, It includes a cylinder body, nut, pressure block, piston head, piston rod, rotary guide, steel ball, path groove, and positioning block. A piston groove is designed in the middle of the lower end of the cylinder body. The piston head is slidably installed in the piston groove. A piston rod is installed at the upper end of the piston head, and the upper end of the piston rod slides through the bottom of the upper end of the piston groove in the cylinder body. A pressure block is clamped at the upper end of the piston rod, and the outer side of the pressure block is fixed to the end of the piston rod by a nut. Several positioning blocks are installed around the upper end of the cylinder body. The pressure block includes a circular body and a trapezoidal pressure head. Several trapezoidal pressure heads are designed around the circular body. A circular groove is designed in the middle of the lower end of the piston head. Several semi-cylindrical grooves are provided around the inner side of the lower end of the circular groove, and the bottom of the semi-cylindrical grooves is set as a hemispherical bottom. The rotary guide includes a fixed plate and a vertical shaft. A vertical shaft is installed in the middle of the upper end of the fixed plate, and several path grooves are designed on the outer side of the vertical shaft. The vertical shaft slides within the circular groove of the piston head, with one half of the steel ball located within the semi-cylindrical groove and the other half located within the path groove on the corresponding rotating guide. The path groove includes an upper vertical semi-circular groove, a lower vertical semi-circular groove, and a spiral semi-circular groove. The lower end of the upper vertical semi-circular groove is connected to the lower vertical semi-circular groove via the spiral semi-circular groove. The upper end of the upper vertical semi-circular groove is connected to the upper end face of the vertical shaft. The positioning block is correspondingly supported within the positioning groove of the heavy-duty steering gear housing. When the trapezoidal pressure head of the pressure block extends into the vertical flow channel, it is offset from the boss of the heavy-duty steering gear housing. When the piston rod descends and presses down with the pressure block, it rotates at a certain angle, and the trapezoidal pressure head of the pressure block presses against the boss. An annular groove is also designed on the outer side of the middle circular groove at the lower end of the piston head. An annular pressure block is installed in the annular groove, and the inner side of the upper end of the annular pressure block covers the lower end of the semi-cylindrical groove.

2. The hydraulic rotary clamping device for heavy-duty steering gear housing according to claim 1, characterized in that, The positioning groove is V-shaped, and the positioning block is set as an isosceles trapezoidal block that is narrow at the top and wide at the bottom, and the inclined surfaces on both sides of the upper end of the positioning block are designed with several serrated teeth.

3. The hydraulic rotary clamping device for heavy-duty steering gear housing according to claim 1, characterized in that, The design includes three positioning grooves, three bosses, three positioning blocks, three steel balls, three path grooves, three semi-cylindrical grooves, and three trapezoidal pressure heads on the pressure block.

4. A hydraulic rotary clamping device for heavy-duty steering gear housing according to claim 1, characterized in that, The upper end of the pressure block is designed with a hemispherical groove, and the lower end of the nut is designed with a downward convex hemispherical protrusion. The nut is locked in place with the hemispherical groove of the pressure block through the downward convex hemispherical protrusion.

5. A hydraulic rotary clamping device for heavy-duty steering gear housing according to claim 1, characterized in that, The pressure block is also designed with three threaded holes around its circumference. A positioning screw is rotatably installed in the threaded hole. After the positioning screw is screwed into the threaded hole, it presses against the outer side of the upper end of the piston rod.

6. A hydraulic rotary clamping device for heavy-duty steering gear housing according to claim 1, characterized in that, The lower end of the cylinder is sealed and installed on the hydraulic worktable of the machine tool machining center. A transverse oil passage and a vertical oil passage are designed inside one side of the cylinder. The outer side of the transverse oil passage connects to the outer side of the cylinder body, and the inner side of the transverse oil passage connects to the upper end of the piston groove. The upper end of the vertical oil passage connects to the transverse oil passage near the opening, and the lower end of the transverse oil passage connects to the lower end face of the cylinder body. Two hydraulic oil holes are designed on the hydraulic worktable. One hydraulic oil hole connects to the lower end of the transverse oil passage, and the other hydraulic oil hole connects to the opening of the piston groove. The fixing plate of the rotary guide is fixed on the hydraulic worktable.

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