CN112129198A - A gear plate precision detection device - Google Patents

Abstract

The invention discloses a chainring accuracy detection device, comprising a frame, characterized in that: a lower chainring clamp (1) is arranged on the frame, and a through hole is opened in the center of the lower chainring clamp (1). , the side of the frame is provided with a threaded sleeve (2), the threaded sleeve (2) is internally threaded with a screw (3), and one end of the screw (3) located outside the frame is provided with a crank (4), The other end of the screw rod (3) is rotatably connected with the side wall of the horizontal moving block (5). 6), the positioning sleeve (6) is slidably connected with a mandrel (7), the bottom end of the mandrel (7) is provided with a second inclined surface matching the first inclined surface, and the first inclined surface and the second inclined surface are slidably connected to each other through matching T-shaped grooves and T-shaped sliders.

Description

A gear plate precision detection device

technical field

The invention relates to a detection device, in particular to a toothed disc precision detection device.

Background technique

Before the workpiece leaves the factory, it is often necessary to use the inspection tool to inspect its various dimensions, and the same is true for the toothed disc. Before the chainrings leave the factory, the outer diameter, inner diameter, thickness and other dimensions of the chainrings are generally tested. Only when all the above parameters meet the requirements can they be sold. However, there is no detection device dedicated to the rotation accuracy of the chainrings on the market, so it is impossible to carry out detection of this parameter. Even if some manufacturers want to test the rotation accuracy, they need to use a variety of inspection tools to cooperate with the operation, which not only requires a lot of labor, but also makes it difficult to ensure the detection accuracy requirements. Therefore, there is a need for a method or apparatus that can solve the above-mentioned problems.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned shortcomings of the prior art, the present invention proposes a device with simple structure, ingenious design and reasonable layout, which can accurately and quickly detect the rotation accuracy of the toothed disc.

The technical solution of the present invention is: a chainring accuracy detection device, comprising a frame, characterized in that: a lower chainring fixture 1 is arranged on the frame, and a pass through the center of the lower chainring fixture 1 is opened. The side of the frame is provided with a threaded sleeve 2, the threaded sleeve 2 is internally threaded with a screw 3, and one end of the screw 3 located outside the frame is provided with a crank 4, and the other end of the screw 3 is connected to the horizontal The side walls of the moving block 5 are rotatably connected, and the end of the horizontal moving block 5 away from the screw 3 is provided with a first slope,

A positioning sleeve 6 is arranged in the frame, and a mandrel 7 is slidably connected in the positioning sleeve 6. The bottom end of the mandrel 7 is provided with a second inclined surface matching the first inclined surface, and the first inclined surface is The inclined surface and the second inclined surface are slidably connected to each other through matching T-shaped grooves and T-shaped sliders.

The detection device also includes an upper chainring fixture 8 matched with the lower chainring fixture 1 . The upper chainring fixture 8 can be pressed against the top end of the mandrel 7 by the pressing plate 9 , between the pressing plate 9 and the upper chainring fixture 8 . A detection jig 10 is arranged in between, the cross section of the detection jig 10 is a regular polygon, a scale pointer 11 is also arranged on the frame, and a scale ring is arranged on the outer circumference of the top surface of the upper toothed plate jig 8 ,

The detection device further includes an autocollimator 12 , and the optical probe 13 of the autocollimator 12 matches the position of the detection fixture 10 .

The horizontal moving block 5 is provided with limit slots 14 distributed along its length direction, and a limit key 15 is arranged in the frame, and the limit key 15 is located in the limit slot 14 .

Compared with the prior art, the present invention has the following advantages:

The gear disc accuracy detection device of this structure has simple structure, ingenious design and reasonable layout. It designs a special structure for the current situation that there is no traditional gear disc rotation accuracy detection device. It can fix one of the toothed discs to be tested, and drive the other toothed disc to rotate at a certain angle, and use an autocollimator to detect the detection fixture that is relatively fixed to the rotating toothed disc, and then quickly and easily rotate the toothed disc. Accurate detection. On the one hand, this detection device can improve the efficiency of the detection work and reduce the overall workload; In addition, the manufacturing process of the device is simple and the manufacturing cost is low, so it can be said that it has many advantages, and is especially suitable for popularization and application in this field, and its market prospect is very broad.

Description of drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a partial enlarged view of an embodiment of the present invention.

Detailed ways

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in Figure 1 and Figure 2: a gear disc accuracy detection device, including a frame, a lower gear disc clamp 1 is arranged on the frame, and a through hole is opened in the center of the lower chain disc clamp 1, and the The side of the frame is provided with a threaded sleeve 2, the threaded sleeve 2 is internally threaded with a screw 3, and one end of the screw 3 outside the frame is provided with a crank 4, and the other end of the screw 3 is connected to the horizontal moving block 5. The side walls are rotatably connected, and the end of the horizontal moving block 5 away from the screw 3 is provided with a first slope,

A positioning sleeve 6 is arranged in the frame, and a mandrel 7 is slidably connected in the positioning sleeve 6. The bottom end of the mandrel 7 is provided with a second inclined surface matching the first inclined surface, and the first inclined surface is The inclined surface and the second inclined surface are slidably connected to each other through matching T-shaped grooves and T-shaped sliders.

The detection device also includes an upper chainring fixture 8 matched with the lower chainring fixture 1 . The upper chainring fixture 8 can be pressed against the top end of the mandrel 7 by the pressing plate 9 , between the pressing plate 9 and the upper chainring fixture 8 . A detection jig 10 is arranged in between, the cross section of the detection jig 10 is a regular polygon, a scale pointer 11 is also arranged on the frame, and a scale ring is arranged on the outer circumference of the top surface of the upper toothed plate jig 8 ,

The detection device further includes an autocollimator 12 , and the optical probe 13 of the autocollimator 12 matches the position of the detection fixture 10 .

The horizontal moving block 5 is provided with limit slots 14 distributed along its length direction, and a limit key 15 is arranged in the frame, and the limit key 15 is located in the limit slot 14 .

The working process of the chainring accuracy detection device of the embodiment of the present invention is as follows: first, a pair of chainrings to be detected are taken, one is clamped and fixed by the lower chainring clamp 1 , and the other is fixed on the upper chainring clamp 8 Then press the upper sprocket clamp 8 (together with the upper sprocket) on the top of the mandrel 7 with the pressure plate 9. The operator drives the screw 3 to rotate through the crank handle 4. When the screw 3 rotates, it will drive the horizontal moving block 5 on the machine. The inner cavity of the frame moves horizontally. When the horizontal moving block 5 retreats, the first slope at its end and the second slope at the bottom end of the mandrel 7 are slidably connected through the matching T-shaped groove and T-shaped slider, so it will be pulled. The mandrel 7 goes down until the upper toothed disc and the lower toothed disc are engaged with each other. At this time, the level of the regular polygon-shaped detection fixture 10 is exactly the same as the level of the optical probe 13 of the autocollimator 12 (that is, the optical The detection light emitted by the measuring head 13 can be irradiated on a certain side of the detection fixture 10), and after calibrating the autocollimator 12, the detection work can be started;

，其中n为横断面为正多边形的检测治具10的侧面数量，在实际工作中，考虑到需要兼顾工作效率和检测精度的问题，n的取值以24为宜，这样每一次上齿盘夹具8的旋转角度即为15°。Shake the handle 4 to drive the horizontal moving block 5 to move, and then push the mandrel 7 to drive the upper chainring fixture 8 and the upper chainring to move upward together, the upper chainring and the lower chainring are disengaged from the engaged state, and the operator manually drives the upper chainring clamp. 8. Rotate a certain angle α, and you can observe the relative position change of the scale pointer 11 relative to the scale ring when rotating, so as to ensure the accuracy of the rotation angle. After the rotation is in place, shake the crank handle 4 in the opposite direction to drive the upper toothed plate clamp 8 to descend. Let the upper chainring and the lower chainring re-engage. At this time, the detection fixture 10 falls back to the detection height of the optical probe 13. Since the detection fixture 10 is fixedly connected with the upper chainring fixture 8 under the action of the pressure plate 9, therefore At this time, the detection jig 10 also rotates by α, and then the autocollimator 12 is used to detect the current side face, and the process is repeated until all sides of the detection jig 10 have been tested once. Rotated angle α=

, where n is the number of sides of the detection jig 10 whose cross section is a regular polygon. In actual work, considering the need to take into account the work efficiency and detection accuracy, the value of n is 24, so that every time the upper tooth plate is The rotation angle of the clamp 8 is 15°.

Claims (2)

1. The utility model provides a fluted disc precision measurement device, includes the frame, its characterized in that: a lower fluted disc clamp (1) is arranged on the rack, a via hole is arranged at the center of the lower fluted disc clamp (1), a thread bush (2) is arranged on the side surface of the rack, a screw rod (3) is connected with the thread bush (2) in a threaded manner, a crank (4) is arranged at one end of the screw rod (3) positioned outside the rack, the other end of the screw rod (3) is rotatably connected with the side wall of a horizontal moving block (5), a first inclined plane is arranged at one end of the horizontal moving block (5) far away from the screw rod (3),

a positioning sleeve (6) is arranged in the frame, a mandrel (7) is connected in the positioning sleeve (6) in a sliding way, a second inclined plane matched with the first inclined plane is arranged at the bottom end of the mandrel (7), the first inclined plane and the second inclined plane are mutually connected in a sliding way through a T-shaped groove and a T-shaped sliding block which are matched with each other,

the detection device also comprises an upper fluted disc clamp (8) matched with the lower fluted disc clamp (1), the upper fluted disc clamp (8) can be tightly pressed at the top end of the mandrel (7) through a pressing plate (9), a detection jig (10) is arranged between the pressing plate (9) and the upper fluted disc clamp (8), the cross section of the detection jig (10) is in a regular polygon shape, a scale pointer (11) is also arranged on the rack, a scale ring is arranged on the outer circumference of the top end face of the upper fluted disc clamp (8),

the detection device further comprises an autocollimator (12), and an optical measuring head (13) of the autocollimator (12) is matched with the position of the detection jig (10).

2. The apparatus according to claim 1, wherein: the horizontal moving block (5) is provided with a limiting groove (14) distributed along the length direction of the horizontal moving block, a limiting key (15) is arranged in the rack, and the limiting key (15) is located in the limiting groove (14).

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