CN219776607U - Quick detection tool for flat square symmetry degree of input shaft of automobile steering gear - Google Patents
Quick detection tool for flat square symmetry degree of input shaft of automobile steering gear Download PDFInfo
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- CN219776607U CN219776607U CN202321192019.1U CN202321192019U CN219776607U CN 219776607 U CN219776607 U CN 219776607U CN 202321192019 U CN202321192019 U CN 202321192019U CN 219776607 U CN219776607 U CN 219776607U
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- 238000005259 measurement Methods 0.000 abstract description 7
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- 230000008569 process Effects 0.000 description 5
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000007689 inspection Methods 0.000 description 1
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a rapid detection tool for the flat square symmetry of an input shaft of an automobile steering gear, and belongs to the technical field of automobile part detection equipment. The gauge consists of a bottom plate and a dial indicator, wherein a fixed center is arranged at one end of the bottom plate, and a movable center is arranged at the other end of the bottom plate; a positioning shaft is arranged on the bottom plate through a positioning seat; the base plate at one side of the positioning seat is provided with a dial indicator through a meter frame. The gauge can fix the workpiece through the fixed center and the movable center, and the workpiece can be effectively fixed by positioning the flat square through the positioning shaft, so that the workpiece is not easy to move, and further the measurement error is effectively reduced; the upper surface of the flat square is directly measured through the dial indicator during detection, so that the symmetry of the flat square can be directly measured, the detection is convenient, the detection efficiency is effectively improved, the flat square is directly detected by taking the central hole as a reference during detection, the detection accuracy can be effectively improved, and the error is reduced; solves the problem that the existing detection tool is easy to generate errors, and is particularly suitable for detecting the symmetry of the flat square.
Description
Technical Field
The utility model relates to a rapid detection tool for the flat square symmetry of an input shaft of an automobile steering gear, and belongs to the technical field of automobile part detection equipment.
Background
The symmetry degree of the flat square plane on the input shaft of one of the parts of the automobile steering gear with the central axis as a reference is required to be less than 0.06. And the flat square plane is taken as a reference and is used as a subsequent processing reference and a detection reference, so that whether the symmetry is qualified or not is required to be quickly confirmed after the flat square plane is processed. The traditional detection method of the flat square symmetry degree comprises the following steps: in the marble table of the inspection station, the input shaft is placed on the V-shaped block, a flat square plane on one side is leveled by a dial indicator or a dial indicator, then the input shaft is clamped by a tool, the V-shaped block is turned by 180 degrees, the other plane on the other side is leveled, time is very consumed, the center hole reference of the input shaft is converted to the outer circle, and if the outer circle jumps greatly, the measured value can generate errors. If the three-coordinate detection method is used for detection, the time is too long to realize on-line detection, the detection frequency can not meet the requirement, and great difficulty is brought to the detection in the processing process.
The patent application with the bulletin number of CN208223377U discloses a screw flat square symmetry gauge, which comprises a gauge bottom plate, wherein two ends of the gauge bottom plate are respectively provided with an outer circular bracket and a flat square bracket, the outer circular bracket and the flat square bracket are perpendicular to the upper surface of the gauge bottom plate, a meter frame is arranged between the outer circular bracket and the flat square bracket, a dial indicator is arranged on the meter frame, a contact at the lower end of the dial indicator is in contact with the surface of the screw, an outer circular bracket side stop block is arranged at the upper end of the outer circular bracket, an end surface stop block is arranged at the upper end of the flat square bracket, a lifting ring screw is arranged between the outer circular bracket and the meter frame, a tension spring is arranged on the lifting ring screw, and an end surface side stop block is arranged on the meter frame, and the utility model has the advantages that: the operation method is simple, convenient and quick, and the detection precision is high. The method is to establish a model by detecting the outer circle of the screw rod and calculate the symmetry of the flat square. Because the reference of the central hole of the workpiece is converted to the outer circle, errors are easy to generate. And it is spacing through excircle support side dog, terminal surface dog and extension spring, and it is when spacing through above-mentioned three, because the work piece is not fixed completely, and the degree of freedom is great for the work piece is easy to move the position in the process of placing, and then further causes the error in the measurement process easily. There is therefore a need for improvements to solve the above problems.
Disclosure of Invention
The utility model aims at: aiming at the defects of the prior art, the quick detection gauge for the flat square symmetry of the input shaft of the automobile steering gear is convenient to detect and can effectively reduce errors, so that the problem that the existing detection gauge is easy to produce errors is solved.
The technical scheme of the utility model is as follows:
the utility model provides a utensil is examined in quick detection of car steering gear input shaft flat square symmetry, it comprises bottom plate, fixed top, movable top and percentage table, its characterized in that: the tail seats at the two ends of the bottom plate are respectively provided with a fixed center, and the tail seat at the end of one end of the bottom plate is provided with a movable center through a limit sleeve; a positioning seat is arranged on the bottom plate below the inner end of the fixed center through a fixed bolt, a positioning shaft is movably inserted on the positioning seat, and a spring A is arranged below the positioning shaft; the base plate at one side of the positioning seat is movably provided with a meter frame through a semicircle (sliding rail), and the meter frame is provided with a dial indicator.
The movable center at the front end of the limit sleeve is sleeved with a spring B.
And jackscrews are respectively and threadedly arranged on the tailstock and the positioning seat above the movable center.
The meter frame consists of a meter frame seat, a meter frame upright post and a meter frame cross beam, wherein the meter frame upright post is fixedly arranged on the meter frame seat, the meter frame cross beam is arranged on the meter frame upright post through a knurled nut, the end head of the meter frame cross beam extends to the upper part of the positioning shaft, and the end head of the meter frame cross beam extending to the upper part of the positioning shaft is fixedly connected with the dial indicator through the knurled nut; the meter stand seat is connected with the semicircle in a sliding way.
The top end of the positioning shaft is provided with a calibration plane.
The utility model has the beneficial effects that:
the rapid detection gauge for the symmetry degree of the flat square of the input shaft of the automobile steering gear can fix a workpiece through the fixed center and the movable center, and the workpiece can be effectively fixed by positioning the flat square through the positioning shaft, so that the workpiece is not easy to move, and further the measurement error is effectively reduced; the upper surface of the flat square is directly measured through the dial indicator during detection, so that the symmetry of the flat square can be directly measured, the detection is convenient, the detection efficiency is effectively improved, the flat square is directly detected by taking the central hole as a reference during detection, calculation is not needed, the detection accuracy is effectively improved, and the error is reduced; solves the problem that the existing detection tool is easy to generate errors, and is particularly suitable for detecting the symmetry of the flat square.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the utility model in the A-A direction;
FIG. 3 is a schematic view of the structure in the B-B direction of the present utility model.
In the figure: 1. the device comprises a bottom plate, 2, a fixed center, 3, a movable center, 4, a dial indicator, 5, a tailstock, 6, a limit sleeve, 7, a locating seat, 8, a locating shaft, 9, springs A,10, a semicircle, 11, springs B,12, jackscrews, 13, a meter frame seat, 14, a meter frame upright post, 15, a meter frame cross beam, 16, knurled nuts, 17, a calibration plane, 18 and a workpiece.
Detailed Description
The rapid detection gauge for the flat square symmetry of the input shaft of the automobile steering gear is composed of a bottom plate 1, a fixed center 2, a movable center 3 and a dial indicator 4, wherein tail seats 5 are respectively arranged at the two end heads of the bottom plate 1, the fixed center 2 is arranged on the tail seat 5 of one end head of the bottom plate 1, the movable center 3 is arranged on the tail seat 5 of the other end head of the bottom plate 1 through a limiting sleeve 6, and as the end heads of the fixed center 2 and the movable center 3 are conical, when the fixed center 2 and the movable center 3 are inserted into the center hole of the input shaft (workpiece) of the automobile steering gear, the workpiece center hole, the fixed center 2 and the movable center 3 are on the same axis, so that the flat square measurement of the workpiece is measured by taking the center hole of the workpiece as a reference, and compared with the measurement of the excircle of the workpiece, the calculation is performed, the error can be effectively reduced, and the detection efficiency is improved; meanwhile, as the two ends of the workpiece are respectively fixed through the fixed center 2 and the movable center 3, the workpiece can be effectively fixed by limiting the ends of the workpiece relative to the stop block and the baffle plate, so that the workpiece is not easy to move, and the measuring error of the workpiece is further reduced. The movable center 3 at the front end of the limit sleeve 6 is sleeved with a spring B11, so that an inward thrust is provided for the movable center 3 through the elasticity of the spring B11, and the movable center 3 can be matched with the fixed center 2 to clamp and fix a workpiece under the action of the elasticity of the spring B11. The jackscrew 12 is arranged on the tailstock 5 above the movable center 3 in a threaded manner, the end head of the jackscrew 12 on the tailstock 5 is in abutting connection with the movable center 3, so that the position of the movable center 3 is locked through the jackscrew 12, the position of the movable center 3 is not easy to loosen after a workpiece is fixed by the movable center 3, the workpiece is further fixed in the measuring process, and the measuring error caused by the loosening of the workpiece is reduced. A positioning seat 7 is arranged on the bottom plate 1 below the inner end of the fixed center 2 through a fixed bolt, a positioning shaft 8 is movably inserted on the positioning seat 7, and a calibration plane 17 is arranged at the top end of the positioning shaft 8. The function of the positioning shaft 8 is to enable the lower surface of the flat square of the workpiece to be attached to the calibration plane 17 under the action of upward pushing force of the positioning shaft 8, so that the lower surface of the flat square of the workpiece is positioned and limited through the calibration plane 17, the angle of the lower surface of the flat square of the workpiece is limited, and therefore when the symmetry degree of the flat square is measured, the symmetry degree data of the flat square can be obtained only by measuring the upper surface of the flat square, and the detection can be greatly facilitated. A spring A9 is arranged below the positioning shaft 8, so that an upward thrust is provided for the positioning shaft 8 through the elastic force of the spring A9, and the alignment plane 17 at the top of the positioning shaft 8 and the lower surface of the workpiece flattening side are mutually extruded, so that the lower surface of the workpiece flattening side is fixed and positioned. Jackscrew 12 is installed to the screw thread respectively on the positioning seat 7, and jackscrew 12 end on the positioning seat 7 is supported by and is connected with location axle 8 to through jackscrew 12 locking location axle 8's position, make location axle 8 be difficult for not hard up behind the lower surface of fixed work piece flat side, and then keep the fixed to the work piece in the measurement process, reduce the measuring error that leads to the fact because the work piece is not hard up. The base plate 1 on one side of the positioning seat 7 is movably provided with a meter frame through a semicircle 10 (sliding rail), and the meter frame is provided with a dial indicator 4 so as to measure the upper surface of the flat square of the workpiece through the dial indicator 4, and further obtain symmetry data of the flat square of the workpiece. The meter frame consists of a meter frame seat 13, a meter frame upright post 14 and a meter frame cross beam 15, wherein the meter frame upright post 14 is fixedly arranged on the meter frame seat 13, the meter frame cross beam 15 is arranged on the meter frame upright post 14 through a knurled nut 16, the end head of the meter frame cross beam 15 extends to the upper part of the positioning shaft 8, and the end head of the meter frame cross beam 15 extending to the upper part of the positioning shaft 8 is fixedly connected with the dial indicator 4 through the knurled nut 16; the meter stand 13 is slidably connected with the semicircle 10.
When the rapid detection tool for the symmetry degree of the flat square of the input shaft of the automobile steering gear detects, the central hole of the end face of one end of the flat square of the workpiece is sleeved on the fixed center 2, the jackscrew 12 on the tailstock 5 is loosened, the movable center 3 is pulled, and the inner end of the movable center 3 is retracted into the tailstock 5 against the elasticity of the spring B11. After the movable center 3 is retracted, the center hole of the end face of the other end of the workpiece is aligned with the end of the movable center 3, and the movable center 3 is released, so that the movable center 3 is matched with the fixed center 2 to clamp and fix the workpiece under the action of the elastic force of the spring B11. After the workpiece is clamped and fixed, the jackscrews 12 on the tailstock 5 are locked, and the movable center 3 is fixed. After the jackscrews 12 on the tailstock 5 are locked, the jackscrews 12 on the positioning seat 7 are loosened, the positioning shaft 8 moves upwards under the action of the elastic force of the spring A9, and the alignment plane 17 at the top of the positioning shaft 8 positions the lower surface of the flat square workpiece. After the alignment plane 17 is attached to the lower surface of the flat square of the workpiece, the jackscrew 12 on the positioning seat 7 is locked, and the position of the positioning shaft 8 is fixed. After locking the jackscrew 12 on the positioning seat 7, loosening the knurled nut 16 between the meter frame upright post 14 and the meter frame cross beam 15, and moving the dial indicator 4 to the upper part of the flat side of the workpiece, so that the meter head of the dial indicator 4 is abutted against the upper surface of the flat side of the workpiece. After the dial indicator 4 is in place, the knurled nuts 16 between the dial indicator stand column 14 and the dial indicator stand beam 15 and the dial indicator stand seat 13 are locked, so that the dial indicator 4 head slides from one end to the other end on the flat upper surface of the workpiece, the change of the readings of the dial indicator 4 is observed, and the difference between the maximum value and the minimum value of the readings of the dial indicator 4 is the symmetry degree of the flat.
The rapid detection gauge for the symmetry degree of the flat square of the input shaft of the automobile steering gear can fix a workpiece through the fixed center 2 and the movable center 3, and the flat square is positioned through the positioning shaft 8, so that the workpiece can be effectively fixed, the workpiece is not easy to move, and the measurement error is effectively reduced; during detection, the upper surface of the flat square is directly measured through the dial indicator 4, so that the symmetry of the flat square can be directly measured, the detection is convenient, the detection efficiency is effectively improved, the flat square is directly detected by taking the central hole as a reference during detection, calculation is not needed, the detection accuracy is effectively improved, and the error is reduced; solves the problem that the existing detection tool is easy to generate errors, and is particularly suitable for detecting the symmetry of the flat square.
Claims (5)
1. The utility model provides a utensil is examined in quick detection of car steering gear input shaft flat square symmetry, it comprises bottom plate (1), fixed top (2), movable top (3) and percentage table (4), its characterized in that: the two end heads of the bottom plate (1) are respectively provided with a tailstock (5), the tailstock (5) of one end head of the bottom plate (1) is provided with a fixed center (2), and the tailstock (5) of the other end head of the bottom plate (1) is provided with a movable center (3) through a limit sleeve (6); a positioning seat (7) is arranged on the bottom plate (1) below the inner end of the fixed center (2) through a fixed bolt, a positioning shaft (8) is movably inserted into the positioning seat (7), and a spring A (9) is arranged below the positioning shaft (8); a dial gauge stand is movably arranged on the bottom plate (1) at one side of the positioning seat (7) through a semicircle (10), and a dial gauge (4) is arranged on the dial gauge stand.
2. The rapid detection tool for the flat square symmetry of the input shaft of the automobile steering gear according to claim 1, wherein the rapid detection tool is characterized in that: the movable center (3) at the front end of the limit sleeve (6) is sleeved with a spring B (11).
3. The rapid detection tool for the flat square symmetry of the input shaft of the automobile steering gear according to claim 1, wherein the rapid detection tool is characterized in that: jackscrews (12) are respectively arranged on the tailstock (5) and the positioning seat (7) above the movable center (3) in a threaded manner.
4. The rapid detection tool for the flat square symmetry of the input shaft of the automobile steering gear according to claim 1, wherein the rapid detection tool is characterized in that: the meter frame consists of a meter frame seat (13), a meter frame upright post (14) and a meter frame cross beam (15), wherein the meter frame upright post (14) is fixedly arranged on the meter frame seat (13), the meter frame cross beam (15) is arranged on the meter frame upright post (14) through a knurled nut (16), the end head of the meter frame cross beam (15) extends to the upper part of the positioning shaft (8), and the end head of the meter frame cross beam (15) extending to the upper part of the positioning shaft (8) is fixedly connected with the dial indicator (4) through the knurled nut (16); the meter stand seat (13) is connected with the semicircle (10) in a sliding way.
5. The rapid detection tool for the flat square symmetry of the input shaft of the automobile steering gear according to claim 1, wherein the rapid detection tool is characterized in that: the top end of the positioning shaft (8) is provided with a calibration plane (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321192019.1U CN219776607U (en) | 2023-05-17 | 2023-05-17 | Quick detection tool for flat square symmetry degree of input shaft of automobile steering gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321192019.1U CN219776607U (en) | 2023-05-17 | 2023-05-17 | Quick detection tool for flat square symmetry degree of input shaft of automobile steering gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219776607U true CN219776607U (en) | 2023-09-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321192019.1U Active CN219776607U (en) | 2023-05-17 | 2023-05-17 | Quick detection tool for flat square symmetry degree of input shaft of automobile steering gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219776607U (en) |
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2023
- 2023-05-17 CN CN202321192019.1U patent/CN219776607U/en active Active
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