阅读说明：本技术 一种转向器输入轴同轴度检测装置 (Steering gear input shaft axiality detection device ) 是由 王海燕 陈连军 孙帮义 陈正权 宋枭 杜威 胡康民 于 2020-05-11 设计创作，主要内容包括：本发明公开了一种转向器输入轴同轴度检测装置,包括基体、左活动座、右活动座、连接把手和内圆孔检测机构,所述基体的上端嵌套安装有双向丝杆,且双向丝杆的外侧嵌套安装有左活动座和右活动座,并且左活动座和右活动座与基体的上端相连接,所述基体的中端嵌套安装有安装块,且安装块的下端固定连接有导向辊,所述基体的中端开设有第二滑槽,且第二滑槽与导向辊相连接,并且安装块的外端螺纹连接有螺纹把手。该转向器输入轴同轴度检测装置,外圆检测机构的顶针顶在转向器输入轴的待检测外圆壁上,配合内圆孔检测机构的顶针在内圆孔内壁中,实现同步检测转向器输入轴的内圆孔与外圆的同轴度,保证了装置的检测精度。(The invention discloses a steering gear input shaft coaxiality detection device which comprises a base body, a left movable seat, a right movable seat, a connecting handle and an inner circular hole detection mechanism, wherein a bidirectional screw rod is nested at the upper end of the base body, a left movable seat and a right movable seat are nested at the outer side of the bidirectional screw rod and are connected with the upper end of the base body, an installation block is nested at the middle end of the base body, a guide roller is fixedly connected with the lower end of the installation block, a second sliding groove is formed in the middle end of the base body and is connected with the guide roller, and a threaded handle is connected with the outer end of the installation block in a threaded mode. According to the steering gear input shaft coaxiality detection device, the ejector pin of the outer circle detection mechanism is abutted against the outer circular wall to be detected of the steering gear input shaft, and the ejector pin of the inner circle hole detection mechanism is matched with the inner circular hole inner wall, so that the inner circle hole and the outer circle coaxiality of the steering gear input shaft can be synchronously detected, and the detection precision of the device is guaranteed.)

1. The utility model provides a steering gear input shaft axiality detection device, includes base member (1), left sliding seat (5), right sliding seat (6), connection handle (16) and interior round hole detection mechanism (22), its characterized in that: the upper end of the base body (1) is nested with a bidirectional screw rod (2), the outer side of the bidirectional screw rod (2) is nested with a left movable seat (5) and a right movable seat (6), the left movable seat (5) and the right movable seat (6) are connected with the upper end of the base body (1), the middle end of the base body (1) is nested with an installation block (7), the lower end of the installation block (7) is fixedly connected with a guide roller (8), the middle end of the base body (1) is provided with a second chute (9), the second chute (9) is connected with the guide roller (8), the outer end of the installation block (7) is in threaded connection with a threaded handle (10), the upper end bearing of the installation block (7) is connected with a movable rod (11), the lower end of the movable rod (11) is fixedly connected with a threaded shaft (12), and the upper end of the movable rod (11) is provided with an excircle detection mechanism (24), butt joint groove (13) have been seted up to the upper end inboard of left side sliding seat (5), and the inboard fixedly connected with reset spring (14) of butt joint groove (13) to stopper (15) are installed to the middle-end nestification of reset spring (14), and stopper (15) are connected with the upper end inboard of left side sliding seat (5) simultaneously, the upper end outside nestification of left side sliding seat (5) is installed and is connected handle (16), nested pole (19) are installed to the inboard nestification of upper end of right side sliding seat (6), and the outside of nested pole (19) runs through and installs interior round hole detection mechanism (22) to thimble (23) are installed to the lower extreme nestification of interior round hole detection mechanism (22).

2. The steering gear input shaft coaxiality detection device according to claim 1, wherein: two-way lead screw (2) are provided with butt joint handle (3) and first spout (4), and the outer end fixedly connected with butt joint handle (3) of two-way lead screw (2) to first spout (4) have been seted up to the lower extreme of two-way lead screw (2), and first spout (4) are connected with left sliding seat (5) simultaneously.

3. The steering gear input shaft coaxiality detection device according to claim 2, wherein: the bidirectional screw rod (2) and the left movable seat (5) and the right movable seat (6) form a nested structure, and the left movable seat (5) and the right movable seat (6) form a sliding structure through the first sliding groove (4) and the upper end of the base body (1).

4. The steering gear input shaft coaxiality detection device according to claim 1, wherein: the installation block (7) is in threaded connection with the movable rod (11) through the threaded shaft (12), the length of the installation block (7) is smaller than that of the movable rod (11), and the movable rod (11) and the excircle detection mechanism (24) form a disassembly and assembly structure.

5. The steering gear input shaft coaxiality detection device according to claim 1, wherein: the central point of stopper (15) and the central point of nested pole (19) coincide each other, and stopper (15) constitute extending structure through reset spring (14) and the inboard of butt joint groove (13) to stopper (15) constitute sliding construction through butt joint groove (13) and the upper end inboard of left sliding seat (5).

6. The steering gear input shaft coaxiality detection device according to claim 1, wherein: the connecting handle (16) is provided with a rotating shaft (17) and a fixed sleeve block (18), the rotating shaft (17) is embedded and installed at the middle end of the connecting handle (16), the rotating shaft (17) is connected with the upper end of the left movable seat (5), and the outer end of the connecting handle (16) is fixedly connected with the fixed sleeve block (18).

7. The steering gear input shaft coaxiality detection device according to claim 6, wherein: the connecting handle (16) forms a rotating structure with the upper end of the left movable seat (5) through a rotating shaft (17), the rotating range of the connecting handle (16) is 0-60 degrees, and the connecting handle (16) forms a nested structure with the outer end of the limiting block (15) through a fixed sleeve block (18).

8. The steering gear input shaft coaxiality detection device according to claim 1, wherein: the embedded rod (19) is provided with a placing rod (20) and a containing groove (21), the placing rod (20) is embedded at the inner end of the embedded rod (19), and the containing groove (21) is formed in the outer side of the placing rod (20).

9. The steering gear input shaft coaxiality detection apparatus according to claim 8, wherein: the embedded rod (19) and the outer end of the placing rod (20) form a dismounting and mounting structure, and the embedded rod (19) and the lower end of the inner circular hole detection mechanism (22) form a thread dismounting and mounting structure through the accommodating groove (21).

10. The steering gear input shaft coaxiality detection device according to claim 1, wherein: the inner circular hole detection mechanism (22) and the thimble (23) form a rotating structure, and the inner circular hole detection mechanism (22) and the inner side of the placing rod (20) form a nested structure.

Technical Field

The invention relates to the technical field of steering gear input shafts, in particular to a device for detecting the coaxiality of a steering gear input shaft.

Background

With the continuous improvement of living standards of people, automobiles become one of the most common devices in daily trips of people, and the automobiles are composed of a plurality of component structures, wherein a steering gear is a mechanical device which is driven by people or unmanned and has a power source, and a device which randomly changes the running route and direction in the running process, the steering gear is commonly called a steering gear and a steering gear, and is the most important component in a steering system, and is used for increasing the force transmitted from a steering wheel to a steering transmission mechanism and changing the transmission direction of the force, and a coaxiality detection device is required to be used in the machining process of an input shaft of the steering gear, but the coaxiality detection device of the input shaft of the existing steering gear has certain defects, such as:

the existing steering gear input shaft coaxiality detection device cannot enable a user to stably limit a workpiece, still needs the user to manually take the input shaft for limitation, and has the defect of certain detection precision.

In order to solve the above problems, innovative design based on the structure of the original coaxiality detection device is urgently needed.

Disclosure of Invention

The invention aims to provide a steering gear input shaft coaxiality detection device, which solves the problems that the detection precision of the steering gear input shaft coaxiality detection device provided by the background technology cannot enable a user to stably limit a workpiece, and the user still needs to manually take and limit the input shaft, so that the detection precision of the steering gear input shaft coaxiality detection device has a certain defect, and the existing steering gear input shaft coaxiality detection device cannot enable the user to stably and accurately detect the inner and outer axialities of the workpiece synchronously, and needs complicated repeated operation of the user.

In order to achieve the purpose, the invention provides the following technical scheme: a steering gear input shaft coaxiality detection device comprises a base body, a left movable seat, a right movable seat, a connecting handle and an inner circular hole detection mechanism, wherein a bidirectional screw rod is nested at the upper end of the base body, a left movable seat and a right movable seat are nested at the outer side of the bidirectional screw rod and are connected with the upper end of the base body, a mounting block is nested at the middle end of the base body, a guide roller is fixedly connected with the lower end of the mounting block, a second sliding groove is formed in the middle end of the base body and is connected with the guide roller, a threaded handle is in threaded connection with the outer end of the mounting block, a movable rod is connected with an upper end bearing of the mounting block, a threaded shaft is fixedly connected with the lower end of the movable rod, an outer circle detection mechanism is mounted at the upper end of the movable rod, a butt joint groove is formed in the inner side of the upper end of the left movable seat, and a, and the middle end of the reset spring is nested with a limiting block, the limiting block is connected with the inner side of the upper end of the left movable seat, the outer side of the upper end of the left movable seat is nested with a connecting handle, the inner side of the upper end of the right movable seat is nested with a nested rod, the outer side of the nested rod is penetrated and installed with an inner circular hole detection mechanism, and the lower end of the inner circular hole detection mechanism is nested with a thimble.

Preferably, the two-way lead screw is provided with a butt joint handle and a first sliding groove, the outer end of the two-way lead screw is fixedly connected with the butt joint handle, the lower end of the two-way lead screw is provided with the first sliding groove, and the first sliding groove is connected with the left movable seat.

Preferably, the bidirectional screw rod, the left movable seat and the right movable seat form a nested structure, and the left movable seat and the right movable seat form a sliding structure with the upper end of the base body through the first sliding groove.

Preferably, the mounting block is in threaded connection with the movable rod through a threaded shaft, the length of the mounting block is smaller than that of the movable rod, and the movable rod and the excircle detection mechanism form a dismounting and mounting structure.

Preferably, the central point of the limiting block coincides with the central point of the nesting rod, the limiting block forms a telescopic structure with the inner side of the butt joint groove through a return spring, and the limiting block forms a sliding structure with the inner side of the upper end of the left movable seat through the butt joint groove.

Preferably, the connecting handle is provided with a rotating shaft and a fixed sleeve block, the rotating shaft is embedded and installed at the middle end of the connecting handle, the rotating shaft is connected with the upper end of the left movable seat, and the fixed sleeve block is fixedly connected to the outer end of the connecting handle.

Preferably, the connecting handle forms a rotating structure with the upper end of the left movable seat through the rotating shaft, the rotating range of the connecting handle is 0-60 degrees, and the connecting handle forms a nested structure with the outer end of the limiting block through the fixed sleeve block.

Preferably, the nesting rod is provided with a placing rod and a containing groove, the placing rod is nested at the inner end of the nesting rod, and the containing groove is formed in the outer side of the placing rod.

Preferably, the nested rod and the outer end of the placing rod form a dismounting and mounting structure, and the nested rod and the lower end of the inner circular hole detection mechanism form a thread dismounting and mounting structure through the accommodating groove.

Preferably, the inner circular hole detection mechanism and the thimble form a rotating structure, and the inner circular hole detection mechanism and the inner side of the placing rod form a nested structure.

Compared with the prior art, the invention has the beneficial effects that: the steering gear input shaft coaxiality detection device;

1. the left and right movable seats are symmetrically distributed, a user only needs to hold the butt joint handle to drive the bidirectional screw rod to rotate circumferentially, the left and right movable seats with the outer ends nested can be stably driven to move in opposite positions along the upper end of the base body, and then the inner ends of the shaft members are stably self-limited by matching with the movable limiting blocks, so that the detection stability of the device is ensured, and the bad phenomenon of shaking is avoided;

2. be provided with crisscross inside and outside circle detection mechanism who distributes, the user can hand the connection handle and carry out the position fine setting through the stopper of fixed nest of blocks to the contact to carry out secondary spacing work to the work piece of contact, and outside circle detection mechanism's thimble top is on the outer circular wall of treating of steering gear input shaft, and the round hole inner wall including the thimble of interior round hole detection mechanism of cooperation realizes the axiality of interior round hole and the excircle of synchronous detection steering gear input shaft, has guaranteed the detection precision of device.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic cross-sectional structural view of a substrate according to the present invention;

FIG. 3 is a side cross-sectional structural view of the mounting block of the present invention;

FIG. 4 is a front cross-sectional structural schematic view of the mounting block of the present invention;

FIG. 5 is a front cross-sectional view of the left movable seat of the present invention;

fig. 6 is a perspective view of the nested rod of the present invention.

In the figure: 1. a substrate; 2. a bidirectional screw rod; 3. a butt joint handle; 4. a first chute; 5. a left movable seat; 6. a right movable seat; 7. mounting blocks; 8. a guide roller; 9. a second chute; 10. a threaded handle; 11. a movable rod; 12. a threaded shaft; 13. a butt joint groove; 14. a return spring; 15. a limiting block; 16. a connecting handle; 17. a rotating shaft; 18. fixing the sleeve block; 19. embedding a sleeve rod; 20. placing a rod; 21. a containing groove; 22. an inner circular hole detection mechanism; 23. a thimble; 24. excircle detection mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a steering gear input shaft coaxiality detection device comprises a base body 1, a bidirectional screw rod 2, a butt joint handle 3, a first sliding groove 4, a left movable seat 5, a right movable seat 6, a mounting block 7, a guide roller 8, a second sliding groove 9, a threaded handle 10, a movable rod 11, a threaded shaft 12, a butt joint groove 13, a reset spring 14, a limiting block 15, a connecting handle 16, a rotating shaft 17, a fixed sleeve block 18, a nesting rod 19, a placing rod 20, a containing groove 21, an inner circular hole detection mechanism 22, a thimble 23 and an outer circular detection mechanism 24, wherein the bidirectional screw rod 2 is nested at the upper end of the base body 1, the left movable seat 5 and the right movable seat 6 are nested at the outer side of the bidirectional screw rod 2, the left movable seat 5 and the right movable seat 6 are connected with the upper end of the base body 1, the mounting block 7 is nested at the middle end of the base body 1, the guide roller 8 is fixedly connected with the lower end of the mounting block 7, the second, and the second chute 9 is connected with the guide roller 8, the outer end of the mounting block 7 is in threaded connection with a threaded handle 10, the upper end bearing of the mounting block 7 is connected with a movable rod 11, the lower end of the movable rod 11 is fixedly connected with a threaded shaft 12, the upper end of the movable rod 11 is provided with an outer circle detection mechanism 24, the inner side of the upper end of the left movable seat 5 is provided with a butt joint groove 13, the inner side of the butt joint groove 13 is fixedly connected with a reset spring 14, the middle end of the reset spring 14 is provided with a limit block 15 in a nested mode, the limit block 15 is connected with the inner side of the upper end of the left movable seat 5 at the same time, the outer side of the upper end of the left movable seat 5 is provided with a connecting handle 16 in a nested mode, the inner side of the upper end of the right movable seat 6 is provided with a nested rod 19 in.

The bidirectional screw rod 2 is provided with a butt joint handle 3 and a first sliding groove 4, the outer end of the bidirectional screw rod 2 is fixedly connected with the butt joint handle 3, the lower end of the bidirectional screw rod 2 is provided with the first sliding groove 4, the first sliding groove 4 is connected with the left movable seat 5, the bidirectional screw rod 2, the left movable seat 5 and the right movable seat 6 form a nested structure, the left movable seat 5 and the right movable seat 6 form a sliding structure with the upper end of the base body 1 through the first sliding groove 4, the bidirectional screw rod 2 which rotates in a threaded manner is allowed to stably drive the left movable seat 5 and the right movable seat 6 which are in threaded butt joint at the outer end to synchronously move in position;

the mounting block 7 is in threaded connection with the movable rod 11 through the threaded shaft 12, the length of the mounting block 7 is smaller than that of the movable rod 11, the movable rod 11 and the excircle detection mechanism 24 form a dismounting and mounting structure, and the mounted excircle detection mechanism 24 can be stably adjusted in multiple angles through the rotatable movable rod 11 and the mounting block 7;

the central point of the limiting block 15 and the central point of the embedded rod 19 coincide with each other, the limiting block 15 forms a telescopic structure with the inner side of the butt joint groove 13 through the return spring 14, and the limiting block 15 forms a sliding structure with the inner side of the upper end of the left movable seat 5 through the butt joint groove 13, so that the limiting block 15 contacting the fixed sleeve block 18 can stably perform position telescopic movement along the inner side of the upper end of the left movable seat 5;

the connecting handle 16 is provided with a rotating shaft 17 and a fixed sleeve block 18, the rotating shaft 17 is nested at the middle end of the connecting handle 16, the rotating shaft 17 is connected with the upper end of the left movable seat 5, the outer end of the connecting handle 16 is fixedly connected with the fixed sleeve block 18, the connecting handle 16 forms a rotating structure with the upper end of the left movable seat 5 through the rotating shaft 17, the rotating range of the connecting handle 16 is 0-60 degrees, the connecting handle 16 forms a nested structure with the outer end of the limiting block 15 through the fixed sleeve block 18, and a user only needs to hold the connecting handle 16 to drive the fixed sleeve block 18 to rotate, so that the limiting block 15 in contact can be driven to perform position adjustment work;

the nesting rod 19 is provided with a placing rod 20 and a containing groove 21, the placing rod 20 is nested at the inner end of the nesting rod 19, the containing groove 21 is formed in the outer side of the placing rod 20, the nesting rod 19 and the outer end of the placing rod 20 form a dismounting and mounting structure, the nesting rod 19 and the lower end of the inner circular hole detection mechanism 22 form a threaded dismounting and mounting structure through the containing groove 21, and a user can conveniently dismount and replace the inner circular hole detection mechanism 22 along the outer end of the nesting rod 19 according to requirements;

the inner circular hole detection mechanism 22 and the thimble 23 form a rotating structure, the inner circular hole detection mechanism 22 and the inner side of the placing rod 20 form a nested structure, and the inner diameter of an object can be stably detected by matching the thimble 23 through the nested and butted inner circular hole detection mechanism 22.

The working principle is as follows: when the steering gear input shaft coaxiality detection device is used, according to the graph 1 and the graph 2, the device is firstly placed at a position needing to work, then a user holds the butt joint handle 3 with hands according to the length of a workpiece to be detected to drive the two-way screw rod 2 to circularly rotate along the inner side of the base body 1, at the moment, the left movable seat 5 and the right movable seat 6 in threaded butt joint with the outer ends of the two-way screw rod carry out opposite position adjustment work along the upper end of the base body 1, after the position difference is not large, bolt installation work is carried out on the inner circular hole detection mechanism 22 and the ejector pin 23 along the accommodating groove 21 on the outer side of the placing rod 20, and then the placing rod 20 is in nested bolt butt joint with the inner side of the;

according to the figures 1, 3 and 4, then the connecting handle 16 is held by hand to drive the fixed sleeve block 18 to rotate outwards for an angle, at the moment, the fixed sleeve block 18 enables the limit block 15 which stably pushes the butt joint of the tail ends to move inwards along the upper end of the left movable seat 5, then a user enables the two ends of the steering gear input shaft which needs to be detected to be nested and butt-jointed at the inner ends of the limit block 15 and the placing rod 20, then the force application state of the connecting handle 16 is released, at the moment, the limit block 15 can stably reset along the upper end of the left movable seat 5 through the relative resetting force of the resetting spring 14, and therefore the outer end of a workpiece is limited for the second time;

according to the drawings of fig. 1 and 3-5, the user can hold the threaded handle 10 by hand and rotate the threaded handle along the outer end of the mounting block 7, so that the mounting block 7 is separated from a limit state, then the user can hold the mounting block 7 to drive the outer circle detection mechanism 24 to carry out position adjustment structure work along the outer end of the base body 1 until the thimble 23 outside the outer circle detection mechanism 24 is abutted on the outer surface of a workpiece, the thimble 23 of the inner circle hole detection mechanism 22 is matched in the inner circle hole wall of the workpiece, then the user manually rotates the workpiece, and the two groups of thimbles 23 can be matched to synchronously detect the coaxiality of the inner circle hole and the outer circle of the steering gear input shaft, so that the detection precision of the device.

Those not described in detail in this specification are within the skill of the art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.