CN218017876U - Clamp for machining inner raceway of square nut of steering gear - Google Patents

Clamp for machining inner raceway of square nut of steering gear Download PDF

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Publication number
CN218017876U
CN218017876U CN202221736694.1U CN202221736694U CN218017876U CN 218017876 U CN218017876 U CN 218017876U CN 202221736694 U CN202221736694 U CN 202221736694U CN 218017876 U CN218017876 U CN 218017876U
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CN
China
Prior art keywords
steering gear
shaped
square nut
fixing block
shaped fixing
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Active
Application number
CN202221736694.1U
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Chinese (zh)
Inventor
李建强
任晓朋
张学坤
郭卫东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North Henan Steering System Xinxiang Co ltd
Original Assignee
Yubei Steering System Xinxiang Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yubei Steering System Xinxiang Co ltd filed Critical Yubei Steering System Xinxiang Co ltd
Priority to CN202221736694.1U priority Critical patent/CN218017876U/en
Application granted granted Critical
Publication of CN218017876U publication Critical patent/CN218017876U/en
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Abstract

The utility model discloses a clamp for processing a roller way in a square nut of a steering gear, which comprises a cylindrical shell and a U-shaped fixed block; the inner wall of the horizontally arranged shell is provided with a strip-shaped positioning block. The U-shaped fixing block is a long-strip-shaped groove body, the cross section of the outer outline of the U-shaped fixing block is U-shaped, and the cross section of the inner wall of the U-shaped fixing block is square; a positioning groove is longitudinally arranged on the circular arc-shaped outer bottom surface of the U-shaped fixing block and is clamped and fixed with the positioning block; a positioning pin is transversely arranged on the inner bottom surface of the U-shaped fixed block, and a first pressing device is arranged on the inner side wall of the U-shaped fixed block; and a support is arranged on the outer edge of the cylinder opening of the shell, and a second pressing device is arranged on the support. The utility model discloses a back is compressed tightly fixedly from side and top respectively with closing device one and closing device two with the square nut joint of steering gear in U type fixed block back of the square nut joint of steering gear for raceway processing in the square nut of steering gear to the convenience is to the processing of raceway in the square nut of steering gear, including the square nut of steering gear with rotate and the displacement in the raceway course of working.

Description

Clamp for machining inner raceway of square nut of steering gear
Technical Field
The utility model belongs to the technical field of auto steering ware, especially, relate to an anchor clamps are used in processing of raceway in square nut of steering gear.
Background
With the development of intelligent steering of commercial vehicles, the electric circulating ball steering gear is gradually applied to the fields of light trucks, medium buses and the like. One of the core components of the electric circulating ball steering gear is a lead screw nut which is a square nut, and the machining precision of the lead screw nut plays a key role in the performance of the electric circulating ball steering gear. The grinding of the inner raceway of the screw nut directly influences the processing precision of the screw nut.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the fixture for machining the inner raceway of the square nut of the steering gear is provided, the square nut of the steering gear can be stably clamped, and the machining of the inner raceway is facilitated.
The technical scheme of the utility model is that:
a clamp for machining a roller way in a square nut of a steering gear comprises a cylindrical shell and a U-shaped fixing block; the shell is horizontally arranged along the axial direction, a positioning block is fixed on the inner wall of the shell, and the positioning block is a strip-shaped bulge arranged along the axial direction of the shell; the U-shaped fixing block is a long strip-shaped groove body, the cross section of the outer outline of the U-shaped fixing block is U-shaped, and the cross section of the inner wall of the U-shaped fixing block is square; a positioning groove is longitudinally arranged on the arc-shaped outer bottom surface of the U-shaped fixing block, the positioning groove is clamped and fixed with the positioning block, and the arc-shaped outer bottom surface of the U-shaped fixing block is attached to the inner wall of the shell; a positioning pin is transversely arranged on the inner bottom surface of the U-shaped fixing block and used for clamping the tooth surface of the square nut of the steering gear; a first pressing device is arranged on the inner side wall of the U-shaped fixing block and used for pressing and fixing the steering gear square nut from the side face; the steering gear is characterized in that a support is mounted on the outer edge of the opening of the shell, the support is arranged in the opening direction of the U-shaped fixing block, and a second pressing device is arranged on the support and used for pressing and fixing a square nut of the steering gear from the upper side.
Preferably, the positioning grooves are arranged on a symmetry axis of the circular arc-shaped outer bottom surface of the U-shaped fixing block; the locating piece sets up the lowest of the inner wall of casing.
Preferably, the number of the first pressing devices is two, and the first pressing devices are arranged on the inner side wall of the U-shaped fixing block in parallel.
Preferably, the first pressing device and the second pressing device are hydraulic oil cylinders.
Preferably, the positioning pins are two in parallel arrangement.
The beneficial effects of the utility model are that:
the utility model discloses an anchor clamps are used in processing of raceway in steering gear square nut is through setting up U type fixed block, closing device one and closing device two, with the square nut joint of steering gear back in U type fixed block, compress tightly fixedly from the side and top respectively with closing device one and closing device two to the convenience is to the processing of raceway in the steering gear square nut, rotation and the displacement of the square nut of steering gear in the raceway course of working including preventing.
Drawings
Fig. 1 is the structure schematic diagram of the clamp for processing the roller way in the square nut of the steering gear of the utility model.
Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.
Fig. 3 is a sectional view taken along line B-B of fig. 1.
Fig. 4 is a schematic view of the working state of the fixture for processing the inner raceway of the square nut of the steering gear of the present invention.
Fig. 5 is a sectional view taken along line C-C of fig. 4.
In the figure:
1. a housing; 11. positioning a block; 12. a support; 2. a U-shaped fixing block; 21. positioning a groove; 22. a first positioning pin; 23. a second positioning pin; 24. an inner sidewall; 3. a first pressing device; 4. a second compressing device; 6. a diverter square nut; 61. tooth surface.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 isbase:Sub>A schematic structural view of the clamp for machiningbase:Sub>A raceway inbase:Sub>A square nut ofbase:Sub>A steering gear of the present invention, fig. 2 isbase:Sub>A sectional view taken along the directionbase:Sub>A-base:Sub>A of fig. 1, and fig. 3 isbase:Sub>A sectional view taken along the direction B-B of fig. 1.
As shown in fig. 1, 2 and 3, the clamp for machining the inner raceway of the square nut of the steering gear of the invention comprises a cylindrical shell 1 and a U-shaped fixed block 2; the shell 1 is horizontally arranged along the axial direction, a positioning block 11 is fixed on the inner wall of the shell 1, and the positioning block 11 is a strip-shaped bulge arranged along the axial direction of the shell 1; the U-shaped fixing block 2 is a long-strip-shaped groove body, the cross section of the outer outline of the U-shaped fixing block is U-shaped, and the cross section of the inner wall of the U-shaped fixing block 2 is square; a positioning groove 21 is longitudinally arranged on the circular arc-shaped outer bottom surface of the U-shaped fixing block 2, the positioning groove 21 is fixedly clamped with the positioning block 11, and the circular arc-shaped outer bottom surface of the U-shaped fixing block 2 is attached to the inner wall of the shell 1; a first positioning pin 22 is transversely arranged on the inner bottom surface of the U-shaped fixed block 2, and the first positioning pin 22 is used for clamping the tooth surface of the steering gear square nut; a first pressing device 3 is arranged on the inner side wall 24 of the U-shaped fixing block 2, and the first pressing device 3 is used for pressing and fixing the steering gear square nut from the side; a support 12 is installed on the outer edge of the opening of the shell 1, the support 12 is arranged in the opening direction of the U-shaped fixing block 2, a second pressing device 4 is arranged on the support 12, and the second pressing device 4 is used for pressing and fixing the steering gear square nut from the upper side.
The working principle is as follows:
fig. 4 is a schematic view of the working state of the fixture for machining the inner raceway of the square nut of the steering gear of the present invention, and fig. 5 is a cross-sectional view taken along the direction C-C of fig. 4. As shown in fig. 4 and 5, when the inner raceway of the steering gear square nut is machined, the steering gear square nut 6 is placed in a groove of the U-shaped fixing block 2, a tooth surface 61 of the steering gear square nut 6 is clamped in the first positioning pin 22, then the steering gear square nut 6 is pressed and fixed from the side surface by the first pressing device 3 arranged on the inner side wall 24 of the U-shaped fixing block 2, and the steering gear square nut 6 is pressed and fixed from the upper side by the second pressing device 4. Therefore, the fixed steering gear direction nut 6 is clamped and fixed in the U-shaped fixing block 2, the inner roller way of the fixed steering gear square nut 6 can be ground through a lathe at the moment, the rotation and displacement of the fixed steering gear square nut 6 in the machining process are prevented, and the machining precision is guaranteed.
Preferably, the positioning groove 21 is arranged on a symmetry axis of the circular arc-shaped outer bottom surface of the U-shaped fixing block 2; the positioning block 11 is arranged at the lowest position of the inner wall of the shell 1.
Set up constant head tank 21 on the symmetry axis of the outer bottom surface of the circular arc of U type fixed block 2, make U type fixed block 2 and casing 1 form the fixed joint of symmetry, the joint is more firm.
Preferably, the number of the first pressing devices 3 is two, and the two pressing devices are horizontally arranged on the inner side wall 24 of the U-shaped fixing block 2 in parallel. The arrangement of the two pressing devices enables the steering gear square nut 6 to be firmly fixed in the length direction, and the steering gear square nut is suitable for machining the inner raceway of the long steering gear square nut.
Preferably, the first pressing device 3 and the second pressing device 4 are hydraulic oil cylinders. The hydraulic oil cylinder is more convenient and firmer to compress, and a cylinder or an elastic part (such as a spring) can be used for compressing. Also can transversely set up the second locating pin 23 that parallels with first locating pin 22 on the interior bottom surface of U type fixed block 2, set up two locating pins and come joint steering gear square nut 6, can be better prevent the square nut 6 of steering gear from at the ascending removal of axial, the processing of raceway in more convenient.
It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the individual features of the invention described above can be combined with one another as long as they do not conflict with one another. In addition, the above embodiments are only some embodiments, not all embodiments, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention based on the embodiments of the present invention.

Claims (5)

1. The fixture for machining the inner roller way of the square nut of the steering gear is characterized by comprising a cylindrical shell and a U-shaped fixing block; the shell is horizontally arranged along the axial direction, a positioning block is fixed on the inner wall of the shell, and the positioning block is a strip-shaped bulge arranged along the axial direction of the shell; the U-shaped fixing block is a long-strip-shaped groove body, the cross section of the outer outline of the U-shaped fixing block is U-shaped, and the cross section of the inner wall of the U-shaped fixing block is square; a positioning groove is longitudinally arranged on the arc-shaped outer bottom surface of the U-shaped fixing block, the positioning groove is clamped and fixed with the positioning block, and the arc-shaped outer bottom surface of the U-shaped fixing block is attached to the inner wall of the shell; a positioning pin is transversely arranged on the inner bottom surface of the U-shaped fixing block and used for clamping the tooth surface of the square nut of the steering gear; a first pressing device is arranged on the inner side wall of the U-shaped fixing block and is used for pressing and fixing the steering gear square nut from the side surface; the steering gear fixing device is characterized in that a support is mounted on the outer edge of the cylinder opening of the shell, the support is arranged in the opening direction of the U-shaped fixing block, and a second pressing device is arranged on the support and used for pressing and fixing a steering gear square nut from the upper side.
2. The clamp for machining the inner raceway of the square nut of the steering gear according to claim 1, wherein the positioning grooves are provided on a symmetry axis of the circular arc-shaped outer bottom surface of the U-shaped fixing block; the locating piece sets up the lowest of the inner wall of casing.
3. The jig for machining the inner raceway of the square nut of the steering gear according to claim 1, wherein two of the pressing devices are arranged in parallel on an inner side wall of the U-shaped fixing block.
4. The jig for machining the inner raceway of a square nut of a steering gear according to claim 1, wherein the first pressing device and the second pressing device are hydraulic cylinders.
5. The jig for machining a raceway in a steering gear square nut as claimed in claim 1, wherein said positioning pins are two in parallel.
CN202221736694.1U 2022-07-07 2022-07-07 Clamp for machining inner raceway of square nut of steering gear Active CN218017876U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221736694.1U CN218017876U (en) 2022-07-07 2022-07-07 Clamp for machining inner raceway of square nut of steering gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221736694.1U CN218017876U (en) 2022-07-07 2022-07-07 Clamp for machining inner raceway of square nut of steering gear

Publications (1)

Publication Number Publication Date
CN218017876U true CN218017876U (en) 2022-12-13

Family

ID=84381251

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221736694.1U Active CN218017876U (en) 2022-07-07 2022-07-07 Clamp for machining inner raceway of square nut of steering gear

Country Status (1)

Country Link
CN (1) CN218017876U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 2398 Muye Avenue, high tech Zone, Xinxiang City, Henan Province

Patentee after: North Henan Steering System (Xinxiang) Co.,Ltd.

Address before: 2398 Muye Avenue, high tech Zone, Xinxiang City, Henan Province

Patentee before: YUBEI STEERING SYSTEM (XINXIANG) CO.,LTD.

CP01 Change in the name or title of a patent holder