CN214276866U

CN214276866U - Inner hole detection device

Info

Publication number: CN214276866U
Application number: CN202023223317.1U
Authority: CN
Inventors: 汪润舟; 张霞; 白利云; 彭春林; 罗鹏
Original assignee: Sichuan Zhongyou Machinery Co ltd
Current assignee: Sichuan Zhongyou Machinery Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-24
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to a gear detection technology field, concretely relates to hole detection device. The specific technical scheme is as follows: the utility model provides an inner hole detection device, includes the base station and sets up the fixed orifices on the base station, be provided with the guide holder on the base station, the axle center department of guide holder runs through and is provided with first through-hole, the one end of guide holder is inserted in the fixed orifices, the other end of guide holder inserts in the hole of work piece, the top of guide holder is provided with stop gear, the below of guide holder is provided with detection mechanism, detection mechanism cooperatees with stop gear in inserting first through-hole. The utility model provides a hole detection device, the aperture of the detection work piece that can be accurate avoids unqualified work piece to get into the broaching station.

Description

Inner hole detection device

Technical Field

The utility model relates to a gear detection technology field, concretely relates to hole detection device.

Background

In the gear machining process, before broaching of a vertical broaching machine on a workpiece, the hole diameter of the workpiece matched with the broaching tool needs to be prevented from exceeding the tolerance requirement. If the workpiece has a large inner diameter, the workpiece may jump out of tolerance. If the inner diameter of the workpiece is smaller, the workpiece is blocked on the broach, and great harm is caused to broaching machine equipment. Therefore, the accuracy of the detection of the inner hole of the workpiece is particularly important.

Disclosure of Invention

Not enough to prior art, the utility model provides a hole detection device, the aperture of the detection work piece that can be accurate avoids unqualified work piece to get into the broaching station.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model discloses a hole detection device, including base station and the fixed orifices of setting on the base station, be provided with the guide holder on the base station, the axle center department of guide holder runs through and is provided with first through-hole, the one end of guide holder is inserted in the fixed orifices, the other end of guide holder inserts in the hole of work piece, the top of guide holder is provided with stop gear, the below of guide holder is provided with detection mechanism, detection mechanism cooperatees with stop gear in inserting first through-hole.

Preferably, a shell is arranged at the bottom of the base station, and the detection mechanism is arranged in the shell; the detection mechanism comprises a driving piece arranged at the bottom of the shell and a detection rod fixed on the driving piece, and the detection rod penetrates through the shell and extends into the first through hole; the lateral wall of the detection rod in the shell is fixedly provided with an induction plate vertical to the detection rod, the bottom of the shell is fixedly provided with a displacement sensor, and the displacement sensor extends into the shell and corresponds to the induction plate.

Preferably, the guide seat is circumferentially provided with a connecting plate, the connecting plate is provided with a second through hole, and the guide seat is fixed on the base platform through a bolt and the connecting plate.

Preferably, stop gear is including setting up the bar recess at guide holder top terminal surface, first through-hole is located the bottom center department of bar recess, the top of guide holder, the both sides that are located the bar recess are provided with the stand, the top of stand is fixed with the top cap, be provided with the same and coaxial third through-hole with first through-hole diameter on the top cap, the symmetry is provided with the fixed block of connecting through the elastic component in the bar recess, every the top of fixed block is fixed with respectively detects the piece, it stretches into two and detects between the piece to detect the pole.

Preferably, two form a cylinder after detecting the piece and merging, be provided with the arc wall that the diameter is different on the side that detects, arc wall combination on two detection pieces after the combination forms a cylindricality through-hole, cylindricality through-hole diameter is from last to lower grow in proper order, its maximum diameter and test rod looks adaptation.

Preferably, the top end of the detection rod is provided with a taper, and the angle is 2-6 degrees.

Preferably, the bottom of the detection block is provided with a cylindrical groove, and the fixing block is inserted into the cylindrical groove for fixing.

Preferably, the diameter of the combined detection block is smaller than or equal to the diameter of the guide seat.

Preferably, the elastic part is transversely arranged in the strip-shaped groove, one end of the elastic part is fixed on the inner wall of the strip-shaped groove, the other end of the elastic part is fixed on the side wall of the fixing block, and the length of the strip-shaped groove is larger than the radius of the guide seat.

The utility model discloses possess following beneficial effect:

the utility model arranges the guide post on the base station, the workpiece is sleeved on the guide seat, and then the detection rod driven by the driving piece is arranged below the base station, and the detection rod extends into the guide seat; and meanwhile, an induction plate vertical to the side wall of the detection rod is fixed, and a displacement sensor is arranged below the induction plate. And then a strip-shaped groove is formed in the top of the guide seat, fixing blocks fixed by transversely arranged elastic pieces are symmetrically arranged in the strip-shaped groove, a detection block is fixed on the upper part of each fixing block, stand columns are arranged on two sides of the strip-shaped groove in the length direction, the top ends of the two stand columns are fixed through a top cover, and the detection block is positioned between the two stand columns and is as high as the stand columns. The tip of detection pole stretches into between two detection pieces, takes detection pole and tablet through the driving piece and upwards moves for two detection pieces move towards the inner wall of work piece, and the outer wall that detects the piece offsets with the inner wall of work piece, and this moment, displacement sensor detects the distance that the tablet upwards moved, thereby calculates the hole size of work piece. The whole process does not need manual operation, and the inner hole size of the workpiece can be accurately detected, so that unqualified workpieces are prevented from entering a broaching station.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural view of the guide seat;

FIG. 4 is a schematic structural diagram of two detection blocks after merging;

in the figure: the device comprises a base platform 1, a fixing hole 2, a guide seat 3, a first through hole 4, a workpiece 5, a shell 6, a driving piece 7, a detection rod 8, an induction plate 9, a displacement sensor 10, a second through hole 11, a strip-shaped groove 12, a stand column 13, a top cover 14, a third through hole 15, an elastic piece 16, a fixing block 17, a detection block 18, an arc-shaped groove 19, a column-shaped groove 20 and a positioning block 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless otherwise indicated, the technical means used in the examples are conventional means well known to those skilled in the art.

Referring to fig. 1-4, the utility model discloses an inner hole detection device, including base station 1 and the fixed orifices 2 of setting on base station 1, be provided with guide holder 3 on the base station 1, the upwards connecting plate that is provided with of circumference of guide holder 3 is provided with second through-hole 11 on the connecting plate, and the shape of connecting plate is indefinite, can be annular, also can be the otic placode for it is fixed with base station 1, specifically fixed with base station 1 through the bolt. The diameter of guide holder 3 is preferred and fixed orifices 2 adaptation, and guide holder 3 can just insert in fixed orifices 2 promptly, avoids guide holder 3 to rock in fixed orifices 2.

A first through hole 4 is arranged at the axis of the guide seat 3 in a penetrating manner, one end of the guide seat 3 is inserted into the fixing hole 2, and the other end of the guide seat 3 is inserted into an inner hole of the workpiece 5, namely the diameter of the guide seat 3 is smaller than the aperture of the workpiece 5. The axis of the guide shoe 3 preferably coincides with the axis of the fixing hole 2. A limiting mechanism is arranged at the top end of the guide seat 3, a detection mechanism is arranged below the guide seat 3, and the detection mechanism is inserted into the first through hole 4 and matched with the limiting mechanism.

The method specifically comprises the following steps: a shell 6 is arranged at the bottom of the base station 1, and the detection mechanism is arranged in the shell 6; the detection mechanism comprises a driving part 7 arranged at the bottom of the shell 6 and a detection rod 8 fixed on the driving part 7, and the driving part 7 can be a cylinder, a hydraulic rod, an electric push rod and other parts capable of performing telescopic motion. The detection rod 8 is fixed on an output shaft of the driving part 7, and the driving part 7 drives the driving part 7 to move up and down. The detection rod 8 extends through the housing 6 into the first through hole 4. The side wall of the detection rod 8 positioned in the shell 6 is fixed with an induction plate 9 vertical to the detection rod 8, the bottom of the shell 6 is fixed with a displacement sensor 10 through a positioning block 21, and the displacement sensor 10 extends into the shell 6 and corresponds to the induction plate 9, namely the displacement sensor 10 is positioned below the induction plate.

Stop gear is including setting up the bar recess 12 at the terminal surface of 3 tops of guide holder, and bar recess 12 sets up the middle part on 3 tops of guide holder, and the line coincidence of its central line and the diameter of guide holder 3, and the length of bar recess 12 is greater than the radius of guide holder 3. And the first through hole 4 is located at the center of the bottom of the bar-shaped groove 12, communicating therewith. The top of guide holder 3, the both sides that are located bar recess 12 length direction are provided with stand 13 respectively, and top cap 14 is passed through on the top of two stand 13 and fixed, are provided with on top cap 14 with the same and coaxial third through-hole 15 of first through-hole 4 diameter, and the symmetry is provided with the fixed block 17 of connecting through elastic component 16 in the bar recess 12, and the top of every fixed block 17 is fixed with respectively detects piece 18, and detection pole 8 stretches into between two detection pieces 18. It should be noted that: the elastic piece 16 can be a spring, the elastic piece 16 is transversely arranged in the strip-shaped groove 12, one end of the elastic piece is fixed on the inner wall of the strip-shaped groove 12, the other end of the elastic piece is fixed on the side wall of the fixed block 17, and the position where the detection rod 8 passes is arranged between the two fixed blocks 17. The height of the detection block 18 is less than or equal to the height of the upright column 13, and preferably equal to the height of the upright column 13 in the embodiment. The fixing block 17 extends out of the strip-shaped groove 12, the bottom of the detection block 18 is provided with a cylindrical groove 20, and the part of the fixing block 17 extending out of the strip-shaped groove 12 is inserted into the cylindrical groove 20 for fixing. When the driving member 7 drives the detection rod 8 to pass through the detection blocks 18, the two detection blocks 18 are subjected to a force away from the axis of the guide seat 3, so that the detection blocks 18 move towards the inner wall of the workpiece 5 under the action of the elastic member 16 until the detection blocks abut against the inner wall of the workpiece 5.

It should be noted that: two shapes that detect piece 18 are the same, can form a cylinder after two detect the piece 18 merge, be provided with the different arc wall 19 of diameter on the side of detecting piece 18, arc wall 19 sets up on two corresponding sides that detect piece 18 promptly, and two arc wall 19 symmetries set up, make the arc wall 19 on two detect the piece 18 after the merge form a cylindricality through-hole that can make up, and cylindricality through-hole diameter is from last to lower grow in proper order, its maximum diameter and detection pole 8 looks adaptation, the shape of cylindricality through-hole is a round platform form promptly. The diameter of the combined detection block 18 is less than or equal to the diameter of the guide seat 3. The maximum diameter of the cylindrical through hole is smaller than the maximum diameter of the detection rod 8, so that the detection rod 8 can move the two detection blocks 18 towards the inner wall of the workpiece 5.

Further, the top end of the detection rod 8 is provided with a taper, the angle is 2-6 degrees, and the preferred angle is 5 degrees. So that the detection rod 8 can easily enter the cylindrical through hole through the first through hole 4 and press the two detection blocks 18 to move towards the inner wall of the workpiece 5. Meanwhile, a rounded corner may be formed at the bottom opening of the first through hole 4, so as to increase the hole diameter at the bottom of the first through hole 4, and make the detection rod 8 enter the first through hole 4 more easily.

Furthermore, in order to increase the stability of the workpiece 5, a finger cylinder may be provided on the base 1, and when the workpiece 5 is placed on the guide base 3, the finger cylinder is activated to clamp the workpiece 5. It is also not necessary to clamp the workpiece 5, and the workpiece 5 may be placed directly on the guide shoe 3. The present embodiment preferably places the workpiece 5 directly on the guide shoe 3.

The utility model discloses a hole detection device places before the material loading station, carries out 100% to the work piece aperture and examines entirely, and the qualified products of cooperation manipulator automatic sorting and defective work. And the workpiece is placed in a broaching station within the range meeting the aperture requirement. Otherwise, the manipulator puts the waste material frame into the waste material frame and waits for manual reconfirmation. When the device is used, the mechanical arm grabs the workpiece 5, moves to the upper part of the guide seat 3, then releases the mechanical claw, and the workpiece 5 falls on the guide seat. The driving part 7 is started, the detection rod 8 drives the induction plate 9 to push upwards at the same time, the detection rod 8 pushes the two detection blocks 18 which are symmetrically arranged towards the left side and the right side (the directions shown in fig. 2), and the outer circles of the two detection blocks 18 can contact the inner hole of the workpiece 5. Subsequently, the displacement sensor 10 is activated, and the displacement sensor 10 moves upward until the sensing plate 9 is contacted, so that the upward travel distance of the detection rod 8 is detected, and the size of the inner hole of the workpiece is calculated. The detection range of the displacement sensor 10 is 1mm, and the detection accuracy is 0.01 mm. Wherein the initial state is calculated as the state when the two detection blocks 18 are combined, and at the same time, the tapered portion of the tip of the detection rod 8 is extended into the detection block 18, and the maximum diameter portion of the cylindrical through hole is in contact with the detection rod 8. When the detection lever 8 is moved upward, the detection block 18 is pressed.

The calculation mode of the inner hole aperture of the workpiece 5 is as follows:

d=d ₀+2tanα*ΔL

d: the diameter of an inner hole of the measured workpiece 5;

d ₀: the diameter of the sample is calibrated when leaving a factory;

α: detecting the taper of the rod;

Δ L: the difference between the running distance (the distance from the actual displacement sensor 10 of the workpiece 5 to be measured to the sensing plate 9) on the detection rod 8 and the standard sample position (the distance from the factory calibration standard sample displacement sensor 10 to the sensing plate 9) can be positive or negative.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides an inner hole detection device, includes base station (1) and fixed orifices (2) of setting on base station (1), its characterized in that: the base station (1) is provided with a guide seat (3), a first through hole (4) penetrates through the axis of the guide seat (3), one end of the guide seat (3) is inserted into the fixing hole (2), the other end of the guide seat (3) is inserted into an inner hole of a workpiece (5), a limiting mechanism is arranged at the top end of the guide seat (3), a detection mechanism is arranged below the guide seat (3), and the detection mechanism is inserted into the first through hole (4) and matched with the limiting mechanism;

the limiting mechanism comprises a strip-shaped groove (12) arranged on the end surface of the top end of the guide seat (3), the first through hole (4) is positioned at the center of the bottom of the strip-shaped groove (12), the upright posts (13) are arranged at the top end of the guide seat (3) and positioned at two sides of the strip-shaped groove (12), a top cover (14) is fixed at the top end of the upright post (13), a third through hole (15) which has the same diameter as the first through hole (4) and is coaxial with the first through hole is arranged on the top cover (14), the strip-shaped grooves (12) are symmetrically provided with fixed blocks (17) connected through elastic pieces (16), the top end of each fixed block (17) is respectively fixed with a detection block (18), the detection mechanism comprises a driving part (7) arranged at the bottom of the shell (6) and a detection rod (8) fixed on the driving part (7), and the detection rod (8) extends into a position between the two detection blocks (18);

two it forms a cylinder to detect after piece (18) merge, be provided with the different arc wall (19) of diameter on the side of detecting piece (18), arc wall (19) combination formation one cylindricality through-hole on two detection pieces (18) after the combination, cylindricality through-hole diameter is from last to down grow in proper order, its maximum diameter and test rod (8) looks adaptation.

2. An internal bore inspection device as claimed in claim 1, wherein: a shell (6) is arranged at the bottom of the base platform (1), and the detection mechanism is arranged in the shell (6); the detection rod (8) penetrates through the shell (6) and extends into the first through hole (4); be located in casing (6) be fixed with on the lateral wall of measuring pole (8) with measuring pole (8) looks vertically tablet (9), the bottom of casing (6) is fixed with displacement sensor (10), displacement sensor (10) stretch into casing (6) in corresponding with tablet (9).

3. An internal bore inspection device as claimed in claim 1, wherein: the guide base is characterized in that a connecting plate is arranged in the circumferential direction of the guide base (3), a second through hole (11) is formed in the connecting plate, and the guide base (3) is fixed on the base platform (1) through a bolt and the connecting plate.

4. An internal bore inspection device as claimed in claim 1, wherein: the top of detection pole (8) is provided with the tapering, and the angle is 2 ~ 6.

5. An internal bore inspection device as claimed in claim 1, wherein: the bottom of the detection block (18) is provided with a cylindrical groove (20), and the fixing block (17) is inserted into the cylindrical groove (20) for fixing.

6. An internal bore inspection device as claimed in claim 1, wherein: the diameter of the combined detection block (18) is less than or equal to that of the guide seat (3).

7. An internal bore inspection device as claimed in claim 1, wherein: the elastic piece (16) is transversely arranged in the strip-shaped groove (12), one end of the elastic piece is fixed on the inner wall of the strip-shaped groove (12), the other end of the elastic piece is fixed on the side wall of the fixing block (17), and the length of the strip-shaped groove (12) is larger than the radius of the guide seat (3).