CN217384117U

CN217384117U - Utensil is examined to steering joint symmetry

Info

Publication number: CN217384117U
Application number: CN202221410316.4U
Authority: CN
Inventors: 袁海南
Original assignee: Chengdu Hongrui Rongchuang Machinery Equipment Co ltd
Current assignee: Chengdu Hongrui Rongchuang Machinery Equipment Co ltd
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-06
Anticipated expiration: 2032-06-07

Abstract

The utility model discloses a steering joint symmetry degree checking fixture, which comprises a base, wherein a limiting column is arranged on the base, the limiting column is tightly matched with a connecting hole of a steering joint, a positioning shaft is tightly matched with an ear hole of the steering joint, the end part of the positioning shaft is provided with a cylindrical fixture block coaxial with the positioning shaft, the fixture block is abutted with an outer side port of the ear hole, a position adjusting mechanism is arranged on the base, a dial indicator is arranged on the position adjusting mechanism, the measuring head of the dial indicator is horizontally arranged, and the measuring head of the dial indicator is abutted with the end surface of the cylindrical fixture block; the steering joint symmetry degree gauge in the scheme is simple in structure and convenient to operate, can measure the symmetry degrees of the steering joint ear holes with different sizes, and is small in measurement error; meanwhile, the inclination of the ear hole can be measured, so that the steering joint with the deformed ear hole can be screened out.

Description

Utensil is examined to steering joint symmetry

Technical Field

The utility model relates to a symmetry detects technical field, concretely relates to utensil is examined to steering joint symmetry.

Background

With the rapid development of the automobile industry in China, the automobile part manufacturing industry is brought into a fast-speed lane with high-speed development, with the increasing maturity of the processing and manufacturing technology and the improvement of the mechanical equipment technology, and the application and the professional mass production of a large number of numerical control devices, the competition in the field of automobile part processing is more and more intense, as shown in fig. 1 and 2, a steering joint is a common connecting piece for steering transmission and comprises a connecting hole for connecting a transmission shaft and two lug holes symmetrically arranged about the axis of the connecting hole, the axes of the two lug holes are positioned on the same straight line, and the axes of the lug holes are intersected and perpendicular to the axis of the connecting hole.

In order to ensure the performance of the steering joint, in the machining process of the steering joint, the requirement on the symmetry degree of the central reference plane of the two ear holes relative to the axis of the connecting hole is met, the currently common detection mode is to use a three-coordinate measuring instrument to measure the symmetry degree, the measurement time is long, the measurement efficiency is low, and human errors are easily caused, so that a special symmetry degree measurement gauge for the steering joint is urgently needed.

SUMMERY OF THE UTILITY MODEL

The above-mentioned not enough to prior art, the utility model provides an utensil is examined to steering joint symmetry has solved the problem that steering joint symmetry measures the difficulty among the prior art.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides an utensil is examined to steering joint symmetry, the on-line screen storage device comprises a base, be provided with spacing post on the base, spacing post closely cooperates with the connecting hole that turns to the joint, it has the location axle to closely cooperate on the earhole that turns to the joint, the tip of location axle is provided with the cylindrical fixture block with location axle coaxial line, fixture block and the outside port looks butt in earhole, be provided with position control mechanism on the base, the last percentage table that is provided with of position control mechanism, the gauge head level setting of percentage table, the gauge head and the cylindrical fixture block terminal surface looks butt of percentage table.

The beneficial effects of adopting the above technical scheme are: this scheme is through spacing post and the inseparable cooperation mode of connecting hole, will turn to the spacing fixing of joint on the base, and through the tight fit location axle on the earhole, make the axis on the earhole coincide with the axis of location axle, can obtain the symmetry of two earholes through measuring the symmetry of two location axles, through adjustment position adjustment mechanism, make the gauge head of percentage table and the centre of a circle looks butt of cylindrical fixture block terminal surface, after obtaining a reading, will connect spacing 180 degrees along the axis rotation of spacing post, read the reading of percentage table gauge head and another cylindrical fixture block terminal surface looks butt, the difference of twice reading is the symmetry about the central reference plane that the connecting hole axis is located for two earholes promptly.

Furthermore, a sinking groove is formed in the base, a lifting block is movably arranged in the sinking groove, the limiting column is arranged on the lifting block, a spring is arranged in the sinking groove, and two ends of the spring are fixedly connected with the bottom of the lifting block and the bottom of the sinking groove respectively.

The beneficial effects of adopting the above technical scheme are: the setting of elevator, make the gradient of percentage table measurable quantity earhole terminal surface, turn to the joint through pressing down, can make the spring compression, the elevator descends, thereby make the earhole on the steering joint downstream, the reading of the different positions department of cylindrical fixture block terminal surface of percentage table gauge head measurable this moment, if the reading of percentage table gauge head remains unchanged, it does not take place the slope to show the earhole, its axis is perpendicular for the axis of connecting hole, if the reading of percentage table gauge head changes, it has taken place the slope of certain degree to show the earhole, and when the gradient of earhole reached the default, need to turn to the joint and scrap the processing, prevent to use unqualified product and lead to the emergence of incident.

Further, the side of elevator slides with the lateral wall of heavy groove and laminates, and wherein the lateral wall of heavy groove plays limiting displacement to the elevator, prevents that the elevator from taking place the skew and leading to the measurement of percentage table to have the error in the lift in-process.

Further, position control mechanism includes the slide rail, and it is provided with the sliding seat to slide on the slide rail, and the sliding seat cover is established on horizontal lead screw, and sliding seat and horizontal lead screw transmission fit, and horizontal lead screw's both ends are all through the spacing installation of bearing frame on the base, are provided with the pole that stretches down on the sliding seat, and the percentage table setting is on the pole that stretches down.

The beneficial effects of adopting the above technical scheme are: the sliding seat drives the sliding seat to move back and forth along the sliding rail through the screw rod, so that the position of the dial indicator in the horizontal direction is adjusted, the position of the dial indicator in the vertical direction is adjusted through the extension and reduction rod, the dial indicator can measure the symmetry degree of steering joints with different sizes, and the practicability is high.

Furthermore, the extending direction of the horizontal screw rod is parallel to the extending direction of the measuring head of the dial indicator, so that the position of the dial indicator can be adjusted along the extending direction of the measuring head of the dial indicator.

Further, the end part of the horizontal screw rod is provided with a turntable which is convenient for the screw rod to rotate.

Furthermore, two marking lines which pass through the circle center and are perpendicular to each other are arranged on the end face of the cylindrical fixture block, the intersection point of the two marking lines is the circle center of the end face of the cylindrical fixture block, and the measuring head of the dial indicator is convenient to abut against the measuring head.

The utility model has the advantages that: the scheme has simple structure and convenient operation, can measure the symmetry of the steering joint ear holes with different sizes, and has small measurement error; meanwhile, the inclination of the ear hole can be measured, so that the steering joint with the deformed ear hole can be screened out.

Drawings

Fig. 1 is a first structural schematic view of a steering joint.

Fig. 2 is a second structural schematic view of the steering joint.

FIG. 3 is a schematic structural diagram of a steering joint symmetry inspection tool.

FIG. 4 is a schematic structural diagram of the steering joint symmetry degree gauge during measurement.

Fig. 5 is a schematic structural view of the positioning shaft.

The device comprises a base 1, a base 2, a steering joint 3, a limiting column 4, a positioning shaft 5, a cylindrical fixture block 6, a dial indicator 7, a sinking groove 8, a lifting block 9, a spring 10, a sliding rail 11, a sliding seat 12, a horizontal screw rod 13, a bearing seat 14, a lifting rod 15, a rotary table 16, a marking line 17, a connecting hole 18 and an ear hole.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes may be made apparent to those skilled in the art within the spirit and scope of the present invention as defined and defined by the appended claims.

As shown in fig. 1 to 5, the steering joint symmetry degree checking fixture of the scheme comprises a base 1, a limiting column 3 is arranged on the base 1, the limiting column 3 is closely matched with a connecting hole 17 of the steering joint 2, a positioning shaft 4 is closely matched with an ear hole 18 of the steering joint 2, a cylindrical clamping block 5 which is coaxial with the positioning shaft 4 is arranged at the end part of the positioning shaft 4, the clamping block is abutted to an outer end opening of the ear hole 18, a position adjusting mechanism is arranged on the base 1, a dial indicator 6 is arranged on the position adjusting mechanism, a measuring head of the dial indicator 6 is horizontally arranged, and a measuring head of the dial indicator 6 is abutted to an end face of the cylindrical clamping block 5.

According to the scheme, the steering joint 2 is limited and fixed on the base 1 in a way that the limiting columns 3 are tightly matched with the connecting holes 17, the positioning shafts 4 are tightly matched with the lug holes 18, so that the axes of the lug holes 18 are overlapped with the axes of the positioning shafts 4, the symmetry of the two lug holes 18 can be obtained by measuring the symmetry of the two positioning shafts 4, the measuring head of the dial indicator 6 is abutted against the circle center of the end face of the cylindrical fixture block 5 by adjusting the position adjusting mechanism, after a reading is obtained, the joint is limited and rotated by 180 degrees along the axes of the limiting columns 3, the reading of the abutment of the measuring head of the dial indicator 6 and the end face of the other cylindrical fixture block 5 is read, and the difference of the two readings is the symmetry of the two lug holes 18 on the center reference plane where the axes of the connecting holes 17 are located.

As shown in fig. 3 and 4, a sinking groove 7 is formed in the base 1, a lifting block 8 is movably arranged in the sinking groove 7, and the side surface of the lifting block 8 is in sliding fit with the side wall of the sinking groove 7, so that the side wall of the sinking groove 7 has a limiting effect on the lifting block 8, and the lifting block 8 is prevented from deviating in the lifting process; the limiting column 3 is arranged on the lifting block 8, the spring 9 is arranged in the sinking groove 7, and two ends of the spring 9 are respectively fixedly connected with the bottom of the lifting block 8 and the bottom of the sinking groove 7; wherein the setting of elevator 8, make the inclination of the 18 terminal surfaces of earhole of percentage table 6 measurable quantity, through pressing down steering joint 2, can make spring 9 compress, elevator 8 descends, thereby make the earhole 18 on steering joint 2 move downwards, the reading of the different positions department of cylindrical fixture block 5 terminal surface can be surveyed to the 6 gauge head of percentage table this moment, if the reading of the 6 gauge head of percentage table keeps unchangeable, it does not take place the slope to show earhole 18, its axis is perpendicular for the axis of connecting hole 17, if the reading of the 6 gauge head of percentage table changes, it has taken place the slope of certain degree to show earhole 18, and when the gradient of earhole 18 reaches the default, need to turn to joint 2 and scrap the processing, prevent to use unqualified product and lead to the emergence of incident.

As shown in fig. 3 and 4, the position adjusting mechanism includes a slide rail 10, a slide seat 11 is slidably disposed on the slide rail 10, the slide seat 11 is sleeved on a horizontal screw rod 12, the slide seat 11 is in transmission fit with the horizontal screw rod 12, two ends of the horizontal screw rod 12 are both mounted on the base 1 through a bearing seat 13 in a limiting manner, a turntable 15 convenient for the screw rod to rotate is disposed at an end of the horizontal screw rod 12, a telescopic rod 14 is disposed on the slide seat 11, the dial indicator 6 is disposed on the telescopic rod 14, and an extending direction of the horizontal screw rod 12 is parallel to an extending direction of a measuring head of the dial indicator 6; the sliding seat 11 drives the sliding seat to move back and forth along the sliding rail 10 through the screw rod, so that the position of the dial indicator 6 in the extension direction of the measuring head is adjusted, the position of the dial indicator 6 in the vertical direction is adjusted through the extension rod 14, the dial indicator 6 can measure the symmetry of the steering joints 2 with different sizes, and the practicability is high.

As shown in fig. 5, two perpendicular marking lines 16 passing through the center of circle are disposed on the end surface of the cylindrical fixture block 5, and the intersection point of the two marking lines 16 is the center of circle of the end surface of the cylindrical fixture block 5, so that the measuring head of the dial indicator 6 can be abutted thereto.

In conclusion, the scheme has the advantages of simple structure and convenient operation, and can be used for measuring the symmetry degree of the earholes 18 of the steering joints 2 with different sizes, and the measurement error is small; and simultaneously, the inclination of the ear hole 18 can be measured, so that the steering joint 2 with the deformed ear hole 18 can be screened out.

Claims

1. The steering joint symmetry degree detection tool is characterized by comprising a base (1), wherein a limiting column (3) is arranged on the base (1), the limiting column (3) is tightly matched with a connecting hole (17) of a steering joint (2), a positioning shaft (4) is tightly matched with an ear hole (18) of the steering joint (2), a cylindrical clamping block (5) which is coaxial with the positioning shaft (4) is arranged at the end part of the positioning shaft (4), the cylindrical clamping block (5) is abutted to an outer side end opening of the ear hole (18), a position adjusting mechanism is arranged on the base (1), a dial indicator (6) is arranged on the position adjusting mechanism, a measuring head of the dial indicator (6) is horizontally arranged, and the measuring head of the dial indicator (6) is abutted to the end surface of the cylindrical clamping block (5).

2. The steering joint symmetry degree detection tool according to claim 1, wherein a sinking groove (7) is formed in the base (1), a lifting block (8) is movably arranged in the sinking groove (7), the limiting column (3) is arranged on the lifting block (8), a spring (9) is arranged in the sinking groove (7), and two ends of the spring (9) are fixedly connected with the bottom of the lifting block (8) and the bottom of the sinking groove (7) respectively.

3. The steering joint symmetry degree detection tool according to claim 2, wherein the side surface of the lifting block (8) is in sliding fit with the side wall of the sinking groove (7).

4. The steering joint symmetry degree detection tool according to claim 1, wherein the position adjusting mechanism comprises a slide rail (10), a slide seat (11) is slidably arranged on the slide rail (10), the slide seat (11) is sleeved on a horizontal screw rod (12), the slide seat (11) is in transmission fit with the horizontal screw rod (12), two ends of the horizontal screw rod (12) are both mounted on the base (1) in a limiting manner through a bearing seat (13), an extension and descent rod (14) is arranged on the slide seat (11), and the dial indicator (6) is arranged on the extension and descent rod (14).

5. The steering joint symmetry degree detection tool according to claim 4, characterized in that the extending direction of the horizontal screw rod (12) is parallel to the extending direction of a measuring head of the dial indicator (6).

6. The steering joint symmetry degree checking fixture according to claim 4, characterized in that a turntable (15) facilitating rotation of the screw rod is arranged at the end of the horizontal screw rod (12).

7. The steering joint symmetry degree testing fixture according to claim 1, wherein two mutually perpendicular marked lines (16) passing through the center of a circle are arranged on the end surface of the cylindrical fixture block (5).