CN216869454U - Automatic testing device for large quantities of elastic components - Google Patents

Abstract

The utility model provides an automatic detection device for large quantities of elastic elements, comprising a lead screw, the top of the lead screw is fixedly connected to a motor, the bottom of the lead screw is movably connected to the bottom plate of a base, the middle of the lead screw is sleeved with a lead screw nut, and the lead screw nut is fixed It is connected to the insulating plate, and the circuit board and several shrapnel contacts are fixed above the insulating plate, so that the rotation of the lead screw drives the circuit board, the insulating plate and several shrapnel contacts to move up and down, and the end of each shrapnel contact is electrically connected to the circuit board. Connected, the grating scale assembly is installed on one side of the insulating plate. The grating scale assembly is used to collect the displacement data of the insulating plate. There is a shrapnel mounting plate above the bottom plate. The shrapnel mounting plate is used to fix the shrapnel. Computer. The large-volume elastic element automatic detection device of the utility model ensures the consistency and accuracy of the detection benchmarks before and after 72-hour pressing, saves the detection cost, and greatly improves the detection efficiency.

Description

Automatic testing device for large quantities of elastic components

technical field

The utility model belongs to the field of mechanical product detection, in particular to a detection of variation control before and after a compaction test of a large quantity of elastic elements of the same size in space.

Background technique

The production of shrapnel requires that the dimensional change is less than 0.2 after the 72-hour load test, so the dimensional detection accuracy is required to be less than 0.05. The existing detection methods are divided into two types: 1. Using an image measuring instrument. The image measuring instrument uses an optical microscope to perform high-magnification optical magnification imaging of the object. After the CCD camera system image, the enlarged object image is input into the computer, and the internal length is calculated. , to detect the contour surface shape, size, angle and position of various complex workpieces. At that time, when large-scale inspections were performed, one by one analysis was required, which was very time-consuming and low in measurement efficiency; 2. Using the elastic element detection device, the light transmission method was used to confirm the contact, To the greatest extent, the measurement state of the product is not deformed. After 72 hours of loading, the error of re-clamping and manual measurement is not easy to control, and the measurement accuracy cannot meet the actual needs.

SUMMARY OF THE INVENTION

In view of this, the present utility model aims to propose an automatic detection device for large quantities of elastic elements, so as to solve the problem of inaccurate dimensional detection due to contact measurement and poor dimensional change after pressing for 72 hours during the large-scale detection of elastic elements. control issues.

In order to achieve the above object, the technical scheme of the present utility model is achieved in this way:

An automatic detection device for large quantities of elastic elements, comprising a lead screw, a circuit board, an insulating plate, a shrapnel mounting plate, a base and a shrapnel contact. The lead screw nut is sleeved in the middle, and the lead screw nut is fixedly connected to the insulating plate. The circuit board and several shrapnel contacts are fixedly installed above the insulating plate, so that the rotation of the lead screw drives the circuit board, the insulating plate and several shrapnel contacts to move up and down. The ends of the contacts of the shrapnel are electrically connected to the circuit board, the grating scale assembly is installed on one side of the insulating plate, and the grating scale assembly is used to collect the displacement data of the insulating plate. Both the motor and the circuit board are used for wiring to an external computer.

Further, the grating ruler assembly includes a grating ruler and a grating ruler probe, the grating ruler probe is installed on one side of the insulating plate, and the grating ruler is installed on one side of the base, so that when the insulating plate moves up and down, the grating ruler side head and the grating ruler are driven. In cooperation, the displacement data of the insulating plate is collected.

Further, a grating bracket is installed on one side of the insulating plate, and a grating ruler side head is installed on one end of the grating bracket, and the grating bracket is used to fix the grating probe on the movable insulating plate and is parallel to the grating ruler.

Further, the shrapnel contact is a cylindrical structure, one end in contact with the shrapnel is a circular plane, and the edge is a rounded structure, and the other end is a screw thread, which is fixed on the insulating board, and each tail is connected to the circuit board circuit.

Further, the base includes a top plate, a connecting plate and a bottom plate of an integrated structure, and the cross section is a U-shaped groove structure, the top plate and the bottom plate are both rectangular plates, and the bottom plate is provided with bearing mounting holes.

Further, an upper cover plate is fixedly installed above the insulating plate, and the upper cover plate is located above the circuit board, and the upper cover plate is a thin-walled shell.

Further, 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.

Further, the shrapnel mounting plate is provided with a threaded interface matching the shrapnel, the shrapnel mounting plate is evenly distributed with a plurality of installation grooves, and both the threaded interface and the installation groove are used to install the shrapnel.

Compared with the prior art, the automatic detection device for large quantities of elastic elements described in the present invention has the following advantages:

(1) The large-volume elastic element automatic detection device of the present invention can detect more than 40 pieces at a time during the detection of large-scale shrapnel, and the detection time is shortened by more than 20 times. It only needs to replace the shrapnel mounting plate and the installed shrapnel. When the shrapnel is pressed together, it does not need to be removed from the shrapnel mounting plate, and the shrapnel mounting plate is directly pressed for 72 hours, which ensures the consistency and accuracy of the detection benchmark before and after 72 hours of pressing. The detection cost is saved, and the detection efficiency is greatly improved.

(2) The large-scale elastic element automatic detection device of the utility model is simple, safe and reliable to assemble and disassemble; the materials used are common, can be reused, the processing range is wide, the service life is long, and the detection accuracy is high.

Description of drawings

The accompanying drawings that constitute a part of the present invention are used to provide further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 is a schematic diagram of an automatic detection device for large-volume elastic elements according to an embodiment of the present utility model;

2 is a side view of the automatic detection device for large-volume elastic elements according to an embodiment of the present utility model;

3 is a cross-sectional view of an automatic detection device for large-volume elastic elements according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of an elastic plate mounting plate according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a base according to an embodiment of the present invention.

Description of reference numbers:

1-motor; 2-coupling; 3-screw; 4-screw nut; 5-upper cover; 6-circuit board; 7-insulation plate; 8-scale; 9-scale probe; 10 -grating bracket; 11-shrapnel; 12-shrapnel mounting plate; 121-installation slot; 122-threaded interface; 13-screw bearing; 14-base; 141-top plate; 142-connection plate; 143-bottom plate; 15-guide Lever; 16-shrapnel contacts.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility. The novel and simplified description does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

As shown in Figure 1 to Figure 5, the automatic detection device for large quantities of elastic components includes a motor 1, a coupling 2, a lead screw 3, a lead screw nut 4, an upper cover plate 5, a circuit board 6, an insulating plate 7, and a grating ruler. 8. The grating ruler probe 9, the grating bracket 10, the shrapnel mounting plate 12, the lead screw bearing 13, the base 14, the guide rod 15, the shrapnel contact 16, the top of the lead screw 3 is fixedly connected to the motor 1, and the motor 1 is installed on the base 14 On the top plate 141 of the lead screw 3, the bottom of the lead screw 3 is movably connected to the bottom plate 143 of the base 14, the lead screw nut 4 is sleeved in the middle of the lead screw 3, the lead screw nut 4 is fixedly connected to the insulating plate 7, and the circuit boards 6 and 7 are fixed above the insulating plate 7. A number of spring contacts 16, so that the lead screw 3 rotates to drive the circuit board 6, the insulating plate 7 and a number of spring contacts 16 to move up and down, the end of each spring contact 16 is electrically connected with the circuit board 6, and the insulating plate 7 The grating scale assembly is installed on the side. The grating scale assembly is used to collect the displacement data of the insulating plate 7. There is a spring plate mounting plate 12 above the bottom plate 143. The spring plate mounting plate 12 is used to fix the spring plate 11. The motor 1 and the circuit board 6 are used for line connection. to an external computer.

The automatic detection device for large quantities of elastic components can detect more than 40 pieces at a time, and the detection time is shortened by more than 20 times. It only needs to replace the shrapnel mounting plate 12 and the installed shrapnel 11, and the detection can be carried out quickly. The shrapnel mounting plate 12 is removed, and the shrapnel mounting plate 12 is directly pressed for 72 hours, which ensures the consistency and accuracy of the detection benchmark before and after 72 hours of pressing, saves the detection cost, and greatly improves the detection efficiency.

Preferably, the grating ruler assembly includes a grating ruler 8 and a grating ruler probe 9, the grating ruler probe 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 when the insulating plate 7 moves up and down, the grating ruler is driven The side head 9 cooperates with the grating ruler 8 to collect the displacement data of the insulating plate 7 .

Further, a grating bracket 10 is installed on one side of the insulating plate 7, and a grating ruler side head 9 is installed on one end of the grating bracket 10. The grating bracket 10 is used to fix the grating probe 9 on the movable insulating plate 7 and is parallel to the grating ruler 8. , collect the displacement data of the insulating plate 7, the grating ruler 8 is a standard part, and the grating ruler 8 is a high-sensitivity component, which is integrally installed on one side of the connecting plate 142 of the base 14, which is convenient for fixing and reduces the touch of personnel.

The shrapnel contact 16 is a cylinder with a diameter of 5mm. The material is made of brass surface for gold plating to increase electrical conductivity. The contact position with the shrapnel 11 is a circular plane, which increases the contact area. The edges are rounded to prevent scratches on the surface of the shrapnel. One end is threaded, fixed on the insulating plate 7, and each tail is connected to the circuit of the circuit board 6;

Preferably, the upper part of the lead screw 3 is fixedly connected to the motor 1 through the coupling 2, the motor 1 provides a precise rotation angle for the lead screw 3, and the motor 1, the lead screw 3 and the coupling 2 are standard parts. The bottom of the lead screw 3 is connected with the lead screw bearing 13 , so that the lead screw 3 can rotate along the lead screw bearing 13 , and the lead screw bearing 13 is fixedly installed inside the bottom plate 143 .

The base 14 includes a top plate 141 , a connecting plate 142 and a bottom plate 143 of integral structure, and the cross section is a U-shaped groove structure. The top plate 141 and the bottom plate 143 are both rectangular plates, and the bottom plate 143 is provided with a bearing mounting hole for installing the screw bearing 13 . The base 14 is an integral structure with a shape of 270*300mm and a height of 200mm. As the main bearing part of the whole device, it is compact and portable. At the same time, the base 14 measures the flatness of the platform to 0.02, providing a high-precision measurement benchmark.

The insulating plate 7 is a non-metallic plate with a thickness of 4 mm, which is fixed to the lead screw nut 4 by screws, so as to realize the insulation between the elastic sheet 11 and the whole device, and improve the accuracy of measuring contact. The upper cover plate 5 is fixedly installed above the insulating plate 7, and the upper cover plate 5 is located above the circuit board 6. The upper cover plate 5 is a thin-walled shell to protect the intermediate circuit board 6, and the circuit board 6 and the upper cover plate are connected by screws. 5 is fixed to the insulating plate 7 and moves synchronously with the insulating plate 7 .

A guide rod 15 is installed at the four corners of the bottom plate 143 respectively, and the other end of each guide rod 15 is movably sleeved inside the insulating plate 7 to provide guidance for the insulating plate 7 to move up and down and prevent rotation.

The shrapnel mounting plate 12 has a threaded interface 122 that matches the shrapnel 11. The shrapnel 11 is fixed by two screws. The shrapnel mounting plate 12 is used as the detection reference and has a high-precision bottom surface. Each shrapnel mounting plate 12 is evenly distributed with a number of installation slots 121. , the installation slot 121 is used to install the elastic piece 11, and the shape of the installation slot 121 matches the shape of the elastic piece 11. Preferably, each elastic piece mounting plate 12 can fix a group of 5 elastic pieces 11 at most, and can place 8 groups at the same time. It can be placed on the base measuring platform.

Screw 3, coupling 2, screw nut 4, grating ruler 8, grating ruler probe 9 are commonly purchased standard parts, grating bracket 10, shrapnel mounting plate 12, base 14, guide rod 15, circuit board cover The material of 5 is stainless steel, and the material of the shrapnel contact 16 is brass which is easy to conduct electricity. The automatic detection device for large quantities of elastic components is simple, safe and reliable to install and disassemble.

The working principle of the automatic detection device for large quantities of elastic components is as follows:

The staff connects the circuit board 6 and the motor 1 to the external computer. The compiled computer program can control the rotation speed and number of turns of the motor, read the displacement data of the grating component, and set the side program inside the computer according to the actual demand, and the programmed program can make the maximum , the minimum value, the contact probe before the maximum value and the non-contact probe after the minimum value are all unqualified products, and the remaining qualified products read the contact data one by one according to the probe contact sequence, and record the measured data value; the staff install the shrapnel 11 one by one on the shrapnel mounting plate 12 (the shrapnel mounting plate 12 is a spare piece), the staff turns on the motor 1, the motor 1 drives the lead screw 3 to rotate through the coupling 2, and the lead screw nut 4 drives the circuit board 6 and the insulating plate 7 with the rotation of the lead screw 3. , The shrapnel contact 16 moves down to the conductive contacts of the shrapnel 11, and contacts the upper end of the shrapnel 11 one by one, and the circuit is turned on; and the data of each shrapnel 11 is displayed on the computer, and the compiled computer program controls the motor rotation speed and circle. Read the displacement data of the grating component, the contact 16 of the shrapnel contacts the upper end of the shrapnel 11, the computer reads the contact number of the conductive contact and the corresponding displacement, and forms statistical results, after 72 hours of the bearing test, the shrapnel is installed on the plate 12 and the shrapnel 11 Place the device on the base 14 again for re-measurement to ensure that the change before and after the test is less than 0.05.

As shown in Table 1 below, the consistency of the automatic detection device for large-scale elastic components is greater than that of the other two methods, and meets the requirement of less than 0.05. It shows that this detection device has great advantages in measurement accuracy and measurement efficiency, and can replace imaging equipment and elastic element detection devices. When testing large quantities of shrapnel, it can detect more than 40 pieces at a time, and the detection time is shortened by more than 20 times. When it is necessary to replace the shrapnel mounting plate 12 and the installed shrapnel 11, the detection can be carried out quickly. When the shrapnel is pressed together, there is no need to remove it from the shrapnel mounting plate 12, and the shrapnel mounting plate 12 is directly pressed for 72 hours, which ensures The consistency and accuracy of the testing benchmarks before and after 72-hour pressing saves testing costs and greatly improves testing efficiency.

Table 1

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (8)

1. The automatic detection device for large quantities of elastic elements is characterized in that: it includes a lead screw, a circuit board, an insulating plate, a shrapnel mounting plate, a base and a shrapnel contact, the top of the lead screw is fixedly connected to the motor, and the bottom of the lead screw is movably connected to the base. The bottom plate, the screw nut is sleeved in the middle of the screw, the screw nut is fixedly connected to the insulating plate, and the circuit board and several shrapnel contacts are fixed above the insulating plate, so that the rotation of the lead screw drives the circuit board, the insulating plate and several shrapnel contacts to achieve up and down Move, the end of each shrapnel contact is electrically connected to the circuit board, the grating scale assembly is installed on one side of the insulating plate, and the grating scale assembly is used to collect the displacement data of the insulating plate. For fixing the shrapnel, the motor and the circuit board are used for wiring to the external computer. 2. The automatic detection device for large quantities of elastic elements according to claim 1, characterized in that: the grating ruler assembly comprises a grating ruler and a grating ruler probe, the grating ruler probe is installed on one side of the insulating plate, and the grating ruler is installed on one side of the base. side, so that when the insulating plate moves up and down, the side head of the grating ruler is driven to cooperate with the grating ruler to collect the displacement data of the insulating plate. 3. The automatic detection device for large quantities of elastic components according to claim 2, wherein a grating bracket is installed on one side of the insulating plate, and a grating ruler side head is installed at one end of the grating bracket, and the grating bracket is used to fix the grating probe on the movable on the insulating plate and parallel to the grating ruler. 4. The automatic detection device for large quantities of elastic elements according to claim 1, wherein the contact point of the elastic piece is a cylindrical structure, the end contacting with the elastic piece is a circular plane, and the edge is a rounded structure, and the other end is a The thread is fixed on the insulating plate, and each tail is connected to the circuit of the circuit board. 5. The automatic detection device for large quantities of elastic elements according to claim 1, wherein the base comprises a top plate, a connecting plate and a bottom plate of an integrated structure, and the cross section is a U-shaped groove structure, and the top plate and the bottom plate are rectangular plates, There are bearing mounting holes on the bottom plate. 6 . The automatic detection device for large quantities of elastic components according to claim 1 , wherein an upper cover plate is fixedly installed above the insulating plate, the upper cover plate is located above the circuit board, and the upper cover plate is a thin-walled shell. 7 . 7 . The automatic detection device for large quantities of elastic elements according to claim 5 , wherein a guide rod is installed at the four corners of the bottom plate, and the other end of each guide rod is movably sleeved inside the insulating plate. 8 . 8. The automatic detection device for large quantities of elastic elements according to claim 1, wherein the shrapnel mounting plate is provided with a threaded interface that matches the shrapnel, the shrapnel mounting plate is evenly distributed with a number of installation grooves, and both the threaded interface and the installation groove are to install shrapnel.

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