CN106949802A - Position detecting tool - Google Patents

Abstract

The invention discloses a kind of position detecting tool, including base plate, base plate is provided with positioner and measurement apparatus, positioner includes stationary center and rolling center, stationary center and rolling center level are relative, and with identical axis, the tail end of rolling center is provided with set lever；Measurement apparatus includes the survey pin body being slidably arranged on stationary center, surveys pin body and is provided with the equally distributed some survey plungers being adapted to measured workpiece.The present invention, measured workpiece is placed between stationary center and rolling center, the position of rolling center is locked with set lever, mobile pin body of surveying make it that survey pin body slides on stationary center, if several for surveying pin body are surveyed plunger and can be put into the corresponding screwed hole of workpiece for measurement, then the threaded hole position of workpiece for measurement is qualified, otherwise workpiece for measurement is unqualified, it is simple in construction, it is adaptable to each occasion, it is moved easily, and it is simple and quick, multiple detecting steps are not needed, accuracy is high, greatly reduces testing cost.

Description

Position gauge

technical field

The invention relates to a machining inspection tool, in particular to a position inspection tool.

Background technique

Common connecting parts in mechanical equipment, such as flange couplings and flanges, usually have several mounting threaded holes processed on their flanges. The position of each screw hole on this component is an important detection parameter, otherwise it will easily lead to inaccurate installation, jamming and concentrated stress during the installation process. It is very difficult to measure the axis of the threaded hole and the position of the threaded hole. There is no special measuring tool. The current measuring tool is three-coordinate, but the three-coordinate takes up a lot of space and the measurement speed is slow, so it cannot be detected at the work site. high cost.

It can be seen that the current position degree detection has the problem of difficult detection.

Contents of the invention

The technical problem to be solved by the present invention is that the current position degree detection is difficult to detect.

In order to solve the above-mentioned technical problems, the technical solution adopted in the present invention is to provide a position inspection tool, including a base plate, and the base plate is provided with:

The positioning device includes a fixed top and a movable top, the fixed top and the movable top are horizontally opposite and have the same central axis, and the tail end of the movable top is provided with a locking handle;

The measuring device includes a measuring pin body which is slidably arranged on the fixed center point, and a plurality of measuring pin heads which are evenly distributed and adapted to the workpiece to be measured are arranged on the measuring pin body.

In another preferred embodiment, the bottom plate is provided with a fixed center seat and a movable center seat, and the fixed center and the movable center are correspondingly arranged on the fixed center seat and the movable center seat respectively.

In another preferred embodiment, a horizontal through hole is provided in the movable center seat, and the movable center is slid in the through hole, and the tail end of the movable center is fixed to the locking seat by a spring, The locking handle is rotatably arranged on the locking seat, and the outer surface of the locking handle is in contact with the movable center seat, and the outer surface of the locking handle includes a first plane and a second plane. and a transition arc surface disposed between the two, the distance between the first plane and the center of rotation is greater than the distance between the second plane and the center of rotation.

In another preferred embodiment, the rear end of the movable center is provided with a spring fixing groove, the spring is arranged in the spring fixing groove, and the locking seat abuts against the rear end surface of the movable center.

In another preferred embodiment, a first bushing is fixedly provided on the contact surface between the measuring pin body and the fixed tip, and a second bushing is provided on the inner surface of the through hole.

In another preferred embodiment, the outer peripheral surface of the movable center fits with the inner wall of the second bushing, and the rear end of the hole wall of the second bushing extends radially toward the center to form an annular shroud , the surrounding plate forms the sliding track of the locking seat.

In another preferred embodiment, a chute is provided on the outer peripheral surface of the fixed tip along its axial direction, and a screw is provided on the measuring pin body, and the screw is slidably arranged in the chute.

In another preferred embodiment, a spacer is provided between the locking handle and the movable center seat, and the spacer is fixed on the rear side of the movable center seat.

In another preferred embodiment, the diameter of the fixed apex is larger than the diameter of the movable apex.

In another preferred embodiment, a reference axis storage box is provided on the base plate.

In the present invention, the workpiece to be tested is placed between the fixed top and the movable top, the position of the movable top is locked with a locking handle, and the measuring pin body is moved to make the measuring pin body slide on the fixed top. If the pin head can be put into the corresponding threaded hole of the workpiece to be tested, the position of the threaded hole of the workpiece to be tested is qualified, otherwise the workpiece to be tested is unqualified. The structure is simple, suitable for various occasions, easy to move, and the operation is simple and fast, not Multiple detection steps are required, the accuracy is high, and the detection cost is greatly reduced.

Description of drawings

Fig. 1 is the top view of the present invention when utilizing reference axis calibration;

Fig. 2 is the front sectional view of the present invention when measuring the workpiece to be measured;

Fig. 3 is an enlarged view of the structure of the movable center seat of the present invention.

detailed description

The invention provides a position inspection tool, which places the workpiece to be measured between the fixed top and the movable top, locks the position of the movable top with a locking handle, moves the measuring pin body so that the measuring pin body slides on the fixed top, If several test pin heads of the test pin body can be put into the corresponding threaded holes of the workpiece to be tested, the position of the threaded holes of the workpiece to be tested is qualified, otherwise the workpiece to be tested is unqualified. The structure is simple, suitable for various occasions, and convenient Mobile, and the operation is simple and fast, does not require multiple detection steps, high accuracy, greatly reducing the detection cost. The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

As shown in FIG. 1 and FIG. 2 , the position inspection tool provided by the present invention includes a base plate 1 on which a positioning device and a measuring device are arranged. The positioning device includes a fixed center 6 and a movable center 5, the fixed center 6 and the movable center 5 are horizontally opposite and have the same central axis, and the rear end of the movable center 5 is provided with a locking handle 7. The measuring device includes a measuring pin body 2 slidably arranged on the fixed center 6 , and a plurality of measuring pin heads 11 which are evenly distributed and adapted to the workpiece 100 to be measured are arranged on the measuring pin body 2 .

The use steps of the present invention are as follows: first, place the reference shaft 10 between the fixed center 6 and the movable center 5, turn the locking handle 7 to lock the position of the movable center 5, and ensure the coaxiality of the fixed center 6 and the movable center 5 . Then take down the reference shaft 10, place the workpiece 100 under test between the fixed center 6 and the movable center 5, lock the position of the movable center 5 with the locking handle 7, and move the measuring pin body 2 so that the measuring pin body 2 is in the Slide on the fixed top 6, if several test pin heads 11 of the test pin body 2 can be put into the corresponding threaded holes of the workpiece 100 to be tested, the position of the threaded hole of the workpiece 100 to be tested is qualified, otherwise the workpiece 100 to be tested is not qualified. The invention has a simple structure, is suitable for various occasions, is convenient to move, is simple and quick to operate, does not need multiple detection steps, has high precision, and greatly reduces the detection cost.

The bottom plate 1 is provided with a fixed top seat 4 and a movable top seat 3. The fixed top seat 6 and the movable top seat 5 are respectively arranged on the fixed top seat 4 and the movable top seat 3. The fixed top seat 4 and the movable top seat 3 are fixed top seats 6 , Active top 5 provides support.

As shown in Figure 3, a horizontal through hole is provided in the movable top seat 3, and a movable top 5 is slid in the through hole, and the tail end of the movable top 5 is fixed with the locking seat 18 by a spring 19, and the locking handle 7 is rotated to set On the locking seat 18, and the outer surface of the locking handle 7 is in contact with the movable center seat 3, the outer surface of the locking handle 7 includes a first plane 71, a second plane 72 and a transition between the two On an arc surface, the distance between the first plane 71 and the center of rotation is greater than the distance between the second plane 72 and the center of rotation. Before the reference shaft 10 or the workpiece 100 to be measured is put in, the movable center 5 is at the rearmost end, at this time, the first plane 71 of the locking handle 7 is in contact with the movable center seat 3, and the reference shaft 10 or the workpiece 100 to be measured is put in. Afterwards, turn the locking handle 7 upwards, and the transition arc surface contacts the movable center seat 3 until the second plane 72 abuts against the movable center seat 3 (that is, the state shown in the figure), and the locking seat 18 and the movable center seat 3 The distance between them shrinks, the movable center 5 protrudes forward, and the reference shaft 10 or the workpiece 100 to be measured is stuck between the fixed center 6 and the movable center 5 . Utilizing the structure of the locking handle 7 itself to change the protruding length of the movable top 5, the stability is strong, the problem of slippage and failure is not easy to occur, and the operation is convenient.

The tail end of the movable top 5 is provided with a spring fixing groove, the spring 19 is arranged in the spring fixing groove, and the locking seat 18 abuts against the rear end surface of the movable top 5 . The spring 19 is fixed inside the movable top 5, which shortens the distance between the movable top 5 and the locking seat 18, reduces the occupied space, makes the structure more compact, and prevents dust from entering the spring 19, which is beneficial to prolong the service life.

A first bushing 8 is fixedly provided on the contact surface between the measuring pin body 2 and the fixed tip 6 , and a second bushing 9 is provided on the inner surface of the through hole. The first bush 8 and the second bush 9 can improve the smoothness of sliding, reduce friction and improve wear resistance.

The outer peripheral surface of the movable top 5 fits with the inner wall of the second bushing 9, and the rear end of the hole wall of the second bushing 9 extends radially to the center to form an annular shroud 91, and the shroud 91 forms the sliding position of the locking seat 18. track. The shroud 91 can prevent the movable top 5 from moving backwards excessively, so as to ensure that the movable top 5 will not escape from the second bushing 9. The shroud 91 can also well limit the linear sliding of the locking seat 18 and prevent it from shifting.

The outer peripheral surface of the fixed top 6 is provided with a chute 61 arranged axially along itself, and the measuring pin body 2 is provided with a screw, and the screw is slidably arranged in the chute 61 (the screw is not shown in the figure, but those skilled in the art easily implemented according to existing technology). The chute 61 and the screw ensure that the measuring pin body 2 will not rotate in the circumferential direction and maintain a stable measurement reference effect, and the chute 61 can also ensure the axial movement of the measuring pin body 2 during the sliding process, so that the measuring pin head 11 is always It corresponds to the screw hole of the workpiece 100 to be tested.

A gasket 12 is arranged between the locking handle 7 and the movable top seat 3 , and the gasket 12 is fixed on the rear side of the movable top seat 3 . Due to the relative friction between the locking handle 7 and the movable center seat 3, the gasket 12 can effectively improve the anti-wear ability.

The diameter of the fixed top 6 is greater than that of the movable top 5 . Compared with the movable center 5 , the fixed center 6 is more stable and can withstand a relatively large load. The two diameters can also improve the clamping accuracy of the workpiece 100 to be tested.

The base plate 1 is provided with a reference shaft storage box 13, which has a special place for placing the reference shaft 10, which is convenient for the operator to take and store.

In the present invention, the workpiece to be tested is placed between the fixed top and the movable top, the position of the movable top is locked with a locking handle, and the measuring pin body is moved to make the measuring pin body slide on the fixed top. If the pin head can be put into the corresponding threaded hole of the workpiece to be tested, the position of the threaded hole of the workpiece to be tested is qualified, otherwise the workpiece to be tested is unqualified. The structure is simple, suitable for various occasions, easy to move, and the operation is simple and fast, not Multiple detection steps are required, the accuracy is high, and the detection cost is greatly reduced.

The present invention is not limited to the above-mentioned best implementation mode, and anyone should know that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same as or similar to the present invention, all fall within the protection scope of the present invention.

Claims (10)

1. position detecting tool, it is characterised in that including base plate, the base plate is provided with:

Positioner, including stationary center and rolling center, the stationary center and the rolling center level are relative, and have Identical axis, the tail end of the rolling center is provided with set lever；

Measurement apparatus, including the survey pin body being slidably arranged on the stationary center, the survey pin body are provided with being tested Equally distributed some survey plungers of workpiece adaptation.

2. position detecting tool as claimed in claim 1, it is characterised in that the base plate is provided with stationary center seat, movable top Sharp seat, the stationary center, the rolling center are correspondingly arranged at stationary center seat, on rolling center seat respectively.

3. position detecting tool as claimed in claim 2, it is characterised in that be provided with horizontal through hole in the rolling center seat, Slided in the through hole and be provided with the rolling center, the tail end of the rolling center is fixed by spring with locking bed, the lock Tight handle is rotatably arranged on the locking bed, and the lateral surface of the set lever and rolling center seat abutting contact, The lateral surface of the set lever includes the first plane, the second plane and the transition cambered surface being disposed there between, described first The distance of plane and center of rotation is more than the distance of second plane and center of rotation.

4. position detecting tool as claimed in claim 3, it is characterised in that the tail end of the rolling center offers spring and fixed Groove, the spring is arranged in the spring fixing groove, the rear end face of the locking bed and the rolling center against.

5. position detecting tool as claimed in claim 3, it is characterised in that survey pin body contact with the stationary center The first bushing is fixed with face, the medial surface of the through hole is provided with the second bushing.

6. position detecting tool as claimed in claim 5, it is characterised in that the outer peripheral face of the rolling center and the described second lining The inwall of set agrees with, and the rear end of the hole wall of second bushing radially extends the coaming plate to form annular, the coaming plate to center Form the sliding rail of the locking bed.

7. position detecting tool as claimed in claim 1, it is characterised in that the outer peripheral face of the stationary center is provided with along itself Axially arranged chute, the survey pin body is provided with screw, and the screw is slidably arranged in the chute.

8. position detecting tool as claimed in claim 3, it is characterised in that between the set lever and rolling center seat Provided with pad, the pad is fixed on the trailing flank of the rolling center seat.

9. position detecting tool as claimed in claim 1, it is characterised in that the stationary center with diameter greater than the movable top The diameter of point.

10. position detecting tool as claimed in claim 1, it is characterised in that the base plate is provided with reference axis receiver.