CN114413760A

CN114413760A - Automatic detection device for large-batch elastic elements

Info

Publication number: CN114413760A
Application number: CN202210236876.0A
Authority: CN
Inventors: 吕丽云; 赵俊博; 张利强; 杨涛; 闫咏; 卫建丽
Original assignee: Tianjin Aerospace Electromechanical Equipment Research Institute
Current assignee: Tianjin Aerospace Electromechanical Equipment Research Institute
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-04-29

Abstract

The invention provides an automatic detection device for large-batch elastic elements, which comprises a lead screw, wherein the upper part of the lead screw is fixedly connected to a motor, the bottom of the lead screw is movably connected to a bottom plate of a base, a lead screw nut is sleeved in the middle of the lead screw and fixedly connected to an insulating plate, a circuit board and a plurality of elastic sheet contacts are fixedly installed above the insulating plate, so that the lead screw rotates to drive the circuit board, the insulating plate and the plurality of elastic sheet contacts to move up and down, the end part of each elastic sheet contact is electrically communicated with the circuit board, a grating ruler component is installed on one side of the insulating plate and used for collecting displacement data of the insulating plate, an elastic sheet installation plate is arranged above the bottom plate and used for fixing elastic sheets, and the motor and the circuit board are used for being connected to an external computer through lines. The automatic detection device for the large-batch elastic elements ensures the consistency and the accuracy of detection references before and after 72-hour pressing, saves the detection cost and greatly improves the detection efficiency.

Description

Automatic detection device for large-batch elastic elements

Technical Field

The invention belongs to the field of mechanical product detection, and particularly relates to detection for controlling the amount of change before and after a compression test of a large batch of elastic elements in the same space size.

Background

The production of the elastic sheet requires that the size variation is less than 0.2 after 72 hours of bearing test, so that the size detection precision is required to be less than 0.05. The existing detection methods are divided into two types: 1. the method comprises the following steps of utilizing an image measuring instrument, wherein the image measuring instrument is used for carrying out high-magnification optical amplification imaging on an object by using an optical microscope, inputting an amplified object image into a computer through a CCD (charge coupled device) camera system image, resolving through the internal length, detecting the shape, the size, the angle and the position of the contour surface of various complex workpieces, and carrying out batch analysis at the time of large-scale detection, so that the time is wasted, and the measuring efficiency is low; 2, the contact is confirmed by an elastic element detection device and a light transmission method, so that the measurement state of the product is ensured to be not deformed to the maximum extent, after the product is loaded for 72 hours, the errors of secondary clamping and artificial measurement are not easy to control, and the measurement precision cannot meet the actual requirement.

Disclosure of Invention

In view of this, the present invention provides an automatic detection apparatus for large-batch elastic elements, so as to solve the problems that the size detection is inaccurate due to contact measurement when the elastic elements are detected in large batch, and the size variation is not easy to control after being pressed for 72 hours.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides an automatic detection device of big batch elastic element, including the lead screw, the circuit board, the insulation board, the shell fragment mounting panel, base and shell fragment contact, lead screw top fixed connection is to the motor, bottom of the screw swing joint to the bottom plate of base, screw nut is cup jointed at the lead screw middle part, screw nut fixed connection is to the insulation board, insulation board top fixed mounting circuit board and a plurality of shell fragment contact, make the lead screw rotate and drive the circuit board, insulation board and a plurality of shell fragment contact realize reciprocating, the tip of every shell fragment contact all communicates with circuit board electricity, insulation board side-mounting grating chi subassembly, grating chi subassembly is used for gathering the displacement data of insulation board, the bottom plate top is equipped with the shell fragment mounting panel, the shell fragment mounting panel is used for fixed shell fragment, motor and circuit board all are used for line connection to outside computer.

Furthermore, the grating ruler component comprises a grating ruler and a grating ruler measuring head, the grating ruler measuring head is installed on one side of the insulating plate, and the grating ruler is installed on one side of the base, so that the insulating plate drives the grating ruler side head to be matched with the grating ruler when moving up and down, and displacement data of the insulating plate are collected.

Furthermore, a grating support is installed on one side of the insulating plate, a grating ruler side head is installed at one end of the grating support, and the grating support is used for fixing the grating measuring head on the movable insulating plate and is parallel to the grating ruler.

Furthermore, the shell fragment contact is the cylinder structure, and the one end of contacting with the shell fragment is the circular plane, and the edge is the radius angle structure, and the other end is the screw thread, is fixed in on the insulation board, and each afterbody intercommunication circuit board circuit.

Further, the base comprises a top plate, a connecting plate and a bottom plate which are of an integral structure, the cross section of the base is of a U-shaped groove structure, the top plate and the bottom plate are rectangular plates, and bearing mounting holes are formed in the bottom plate.

Furthermore, an upper cover plate is fixedly installed above the insulating plate and positioned above the circuit board, and the upper cover plate is a thin-wall shell.

Furthermore, a guide rod is respectively installed at four corners of the bottom plate, and the other end of each guide rod is movably sleeved inside the insulating plate.

Furthermore, the shell fragment mounting panel is last to have with shell fragment assorted hickey, a plurality of mounting grooves of shell fragment mounting panel equipartition, hickey and mounting groove all are used for installing the shell fragment.

Compared with the prior art, the automatic detection device for the large-batch elastic elements has the following advantages:

(1) the automatic detection device for the large-batch elastic elements can detect more than 40 elastic pieces at one time when the large-batch elastic pieces are detected, the detection time is shortened by more than 20 times, the detection can be rapidly carried out only by replacing the elastic piece mounting plate and the mounted elastic pieces, and when the elastic pieces are pressed together, the elastic piece mounting plate is directly driven to press for 72 hours without being detached from the elastic piece mounting plate, so that the consistency and the accuracy of detection references before and after 72 hours of pressing are ensured, the detection cost is saved, and the detection efficiency is greatly improved.

(2) The automatic detection device for the large-batch elastic elements is simple, convenient, stable and reliable to assemble and disassemble; the detection method has the advantages of common used materials, repeated use, wide processing range, long service life and high detection accuracy.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of an automated inspection apparatus for bulk elastic components according to an embodiment of the invention;

FIG. 2 is a side view of an automated inspection apparatus for bulk elastic components according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of an automated mass inspection apparatus for elastic components according to an embodiment of the present invention;

fig. 4 is a schematic view of a spring plate mounting plate according to an embodiment of the invention;

fig. 5 is a schematic view of a base according to an embodiment of the invention.

Description of reference numerals:

1-a motor; 2-a coupler; 3-a lead screw; 4-lead screw nut; 5-upper cover plate; 6-a circuit board; 7-an insulating plate; 8-grating ruler; 9-grating ruler measuring head; 10-a grating support; 11-a spring plate; 12-a spring plate mounting plate; 121-mounting grooves; 122-a threaded interface; 13-a lead screw bearing; 14-a base; 141-a top plate; 142-a connecting plate; 143-a base plate; 15-a guide bar; 16-spring contact.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "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 used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

An automatic detection device for large-batch elastic elements is shown in figures 1 to 5 and comprises a motor 1, a coupler 2, a lead screw 3, a lead screw nut 4, an upper cover plate 5, a circuit board 6, an insulating plate 7, a grating ruler 8, a grating ruler measuring head 9, a grating support 10, a spring plate mounting plate 12, a lead screw bearing 13, a base 14, a guide rod 15 and a spring plate contact 16, wherein the upper part of the lead screw 3 is fixedly connected to the motor 1, the motor 1 is mounted on a top plate 141 of the base 14, the bottom of the lead screw 3 is movably connected to a bottom plate 143 of the base 14, the middle part of the lead screw 3 is sleeved with the lead screw nut 4, the lead screw nut 4 is fixedly connected to the insulating plate 7, the circuit board 6 and a plurality of spring plate contacts 16 are fixedly mounted above the insulating plate 7, so that the lead screw 3 rotates to drive the circuit board 6, the insulating plate 7 and the plurality of spring plate contacts 16 to move up and down, and the end part of each spring plate contact 16 is electrically communicated with the circuit board 6, insulating board 7 one side-mounting grating chi subassembly, grating chi subassembly are used for gathering insulating board 7's displacement data, and bottom plate 143 top is equipped with shell fragment mounting panel 12, and shell fragment mounting panel 12 is used for fixed shell fragment 11, and motor 1 and circuit board 6 all are used for line connection to outside computer.

Automatic detection device of big batch elastic element can once detect and be greater than 40, check-out time has shortened more than 20 times, only need to change shell fragment mounting panel 12 and the shell fragment 11 that has installed, just can detect rapidly, the shell fragment presses and in the time, need not pull down from shell fragment mounting panel 12, directly takes shell fragment mounting panel 12 to press and 72 hours, guaranteed that the uniformity, the accuracy of detection benchmark around the 72 hours compresses tightly, sparingly detect the cost, detection efficiency has been improved greatly.

Preferably, the grating ruler assembly comprises a grating ruler 8 and a grating ruler measuring head 9, the grating ruler measuring head 9 is installed on one side of the insulating plate 7, and the grating ruler 8 is installed on one side of the base 14, so that the insulating plate 7 is driven to move up and down to enable the grating ruler side head 9 to be matched with the grating ruler 8, and displacement data of the insulating plate 7 are collected.

Furthermore, a grating support 10 is installed on one side of the insulating plate 7, a grating ruler side head 9 is installed at one end of the grating support 10, the grating support 10 is used for fixing the grating measuring head 9 on the movable insulating plate 7 and is parallel to the grating ruler 8, displacement data of the insulating plate 7 are collected, the grating ruler 8 is a standard component, the grating ruler 8 is a high-sensitivity component and is integrally installed on one side of a connecting plate 142 of the base 14, and fixing and contact of personnel are facilitated and reduced.

The spring plate contact 16 is a cylinder with the diameter of 5mm, the brass surface is selected as a material for gold plating, the conductivity is increased, the contact position with the spring plate 11 is a circular plane, the contact area is increased, the surface of the spring plate is prevented from being scratched by a chamfered edge, the other end is a thread and is fixed on the insulating plate 7, and each tail part is communicated with a circuit of the circuit board 6;

preferably, 3 tops of lead screw are through shaft coupling 2 fixed connection to motor 1, and motor 1 provides accurate turned angle for lead screw 3, and motor 1, lead screw 3, shaft coupling 2 are the standard component. The bottom of the screw rod 3 is connected with a screw rod bearing 13, so that the screw rod 3 can rotate along the screw rod bearing 13, and the screw rod bearing 13 is fixedly installed inside the bottom plate 143.

The base 14 comprises a top plate 141, a connecting plate 142 and a bottom plate 143 which are of an integral structure, the cross section of the base is of a U-shaped groove structure, the top plate 141 and the bottom plate 143 are rectangular plates, and a bearing mounting hole for mounting the lead screw bearing 13 is formed in the bottom plate 143. The base 14 is 270 x 300mm high 200 mm's an organic whole structure of appearance, as the main load-carrying part of whole device, has small and exquisite portable characteristics, and the base 14 measuring platform plane degree 0.02 provides high accuracy measuring reference simultaneously.

The insulation board 7 is a nonmetal board with the thickness of 4mm, and is fixed on the screw nut 4 through a screw, so that the insulation between the elastic sheet 11 and the whole device is realized, and the accuracy of measuring contact is improved. An upper cover plate 5 is fixedly installed above the insulating plate 7, the upper cover plate 5 is located above the circuit board 6, the upper cover plate 5 is a thin-wall shell, the middle circuit board 6 is protected, and the circuit board 6 and the upper cover plate 5 are fixed on the insulating plate 7 through screws and move synchronously with the insulating plate 7.

The four corners department of bottom plate 143 installs a guide bar 15 respectively, and the other end activity of every guide bar 15 cup joints inside insulation board 7, for insulation board 7 provides the direction when reciprocating, prevents to rotate.

There is threaded interface 122 with shell fragment 11 assorted on the shell fragment mounting panel 12, it is fixed with shell fragment 11 through 2 screws, shell fragment mounting panel 12 is as detecting the benchmark, there is the high accuracy bottom surface, a plurality of mounting grooves 121 of each shell fragment mounting panel 12 equipartition, mounting groove 121 is used for installing shell fragment 11, and the shape of mounting groove 121 is joined in marriage with the shape of shell fragment 11 and is skinned, it is preferred, a set of 5 shell fragments 11 can be fixed to every shell fragment mounting panel 12 at most, 8 groups can be placed simultaneously, place during the measurement on base measuring platform can.

The lead screw 3, the coupler 2, the lead screw nut 4, the grating ruler 8 and the grating ruler measuring head 9 are purchased common standard parts, the grating support 10, the elastic sheet mounting plate 12, the base 14, the guide rod 15 and the circuit board upper cover 5 are made of stainless steel, and the elastic sheet contact 16 is made of brass which is easy to conduct electricity. The automatic detection device for the large-batch elastic elements is simple, convenient, stable and reliable to assemble and disassemble, common in used materials, reusable, wide in processing range, long in service life and high in detection accuracy.

The working principle of the automatic detection device for the large-batch elastic elements is as follows:

the circuit board 6 and the motor 1 are connected to an external computer by a worker, the rotation speed and the number of turns of the motor can be controlled by a programmed computer program, displacement data of the grating assembly are read, a side program is set in the computer according to actual requirements, the maximum value and the minimum value are set by the programmed computer program, no contact probe is used as an unqualified product before the maximum value and after the minimum value, contact data are read one by one for the other qualified products according to the contact sequence of the probes, and an actually measured data value is recorded; the working personnel install the elastic sheets 11 on the elastic sheet mounting plates 12 one by one (the elastic sheet mounting plates 12 are spare multiple pieces), the working personnel turn on the motor 1, the motor 1 drives the screw rod 3 to rotate through the coupler 2, the screw rod nut 4 drives the circuit board 6, the insulating plate 7 and the elastic sheet contact 16 to move downwards to the conductive contact of the elastic sheets 11 along with the rotation of the screw rod 3, and the circuit is conducted by contacting the upper ends of the elastic sheets 11 one by one; and the data of each elastic sheet 11 is displayed on a computer, the rotating speed and the number of turns of the motor are controlled by a programmed computer program, the displacement data of the grating assembly are read, the elastic sheet contact 16 is contacted with the upper end of the elastic sheet 11, the contact number of the conducting contact and the corresponding displacement are read by the computer, a statistical result is formed, the elastic sheet mounting plate 12 and the elastic sheet 11 are placed on the base 14 of the device again after a bearing test is carried out for 72 hours for remeasurement, and the variable quantity before and after the test is ensured to be less than 0.05.

As shown in table 1 below, the consistency of the automatic detection device for large-batch elastic elements is greater than that of the other two methods, and the requirement of less than 0.05 is met. The detection device has great advantages in measurement precision and measurement efficiency, can replace imaging equipment and elastic element detection devices, can detect more than 40 pieces at one time when large quantities of elastic sheets are detected, the detection time is shortened by more than 20 times, only the elastic sheet mounting plate 12 and the installed elastic sheet 11 need to be replaced, the detection can be rapidly carried out, when the elastic sheets are pressed, the elastic sheets do not need to be detached from the elastic sheet mounting plate 12, the elastic sheet mounting plate 12 is directly driven to be pressed for 72 hours, the consistency and the accuracy of detection references before and after 72 hours of pressing are ensured, the detection cost is saved, and the detection efficiency is greatly improved.

TABLE 1

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. Automatic detection device of big elastic element in batches, its characterized in that: including the lead screw, the circuit board, the insulation board, the shell fragment mounting panel, base and shell fragment contact, lead screw top fixed connection to motor, bottom of the screw swing joint to the bottom plate of base, lead screw nut is cup jointed at the lead screw middle part, lead screw nut fixed connection to insulation board, insulation board top fixed mounting circuit board and a plurality of shell fragment contact, make the lead screw rotate and drive the circuit board, insulation board and a plurality of shell fragment contact realize reciprocating, the tip of every shell fragment contact all communicates with circuit board electricity, insulation board side-mounting grating chi subassembly, grating chi subassembly is used for gathering the displacement data of insulation board, the bottom plate top is equipped with the shell fragment mounting panel, the shell fragment mounting panel is used for fixed shell fragment, motor and circuit board all are used for the circuit to be connected to outside computer.

2. The automated bulk spring element inspection device of claim 1, wherein: the grating ruler component comprises a grating ruler and a grating ruler measuring head, the grating ruler measuring head is installed on one side of the insulating plate, and the grating ruler is installed on one side of the base, so that the insulating plate drives the grating ruler side head to be matched with the grating ruler when moving up and down, and displacement data of the insulating plate is collected.

3. The automated bulk spring element inspection device of claim 2, wherein: one side of the insulating plate is provided with a grating support, one end of the grating support is provided with a grating ruler side head, and the grating support is used for fixing the grating measuring head on the movable insulating plate and is parallel to the grating ruler.

4. The automated bulk spring element inspection device of claim 1, wherein: the shell fragment contact is the cylinder structure, and the one end of contacting with the shell fragment is the circular plane, and the edge is the radius angle structure, and the other end is the screw thread, is fixed in on the insulation board, and each afterbody communicates circuit board circuit.

5. The automated bulk spring element inspection device of claim 1, wherein: the base comprises a top plate, a connecting plate and a bottom plate which are of an integral structure, the cross section of the base is of a U-shaped groove structure, the top plate and the bottom plate are rectangular plates, and bearing mounting holes are formed in the bottom plate.

6. The automated bulk spring element inspection device of claim 1, wherein: an upper cover plate is fixedly arranged above the insulating plate and is positioned above the circuit board, and the upper cover plate is a thin-wall shell.

7. The automated bulk spring element inspection device of claim 5, wherein: the four corners of the bottom plate are respectively provided with a guide rod, and the other end of each guide rod is movably sleeved inside the insulating plate.

8. The automated bulk spring element inspection device of claim 1, wherein: the shell fragment mounting panel is last have with shell fragment assorted hickey, a plurality of mounting grooves of shell fragment mounting panel equipartition, hickey and mounting groove all are used for installing the shell fragment.