阅读说明：本技术 一种电子产品锁螺丝检测装置及其检测方法 (Electronic product lock screw detection device and detection method thereof ) 是由 杨文成 覃爱义 于 2021-07-29 设计创作，主要内容包括：本发明公开了一种电子产品锁螺丝检测装置及其检测方法,在将电子秤归零后,将锁好螺丝的被测件放置到电子秤上,电子秤将会秤出被测件重量,再启动磁铁升降电机使磁铁升降固定板带动磁铁下降,电子秤将会秤出磁铁下降时被测件重量,将第一次秤出的重量减去第二次秤出的重量,既可得出是否漏锁或有多余螺丝在被测件内。(The invention discloses a device and a method for detecting a locked screw of an electronic product.)

1. The utility model provides an electronic product lock screw detection device which characterized in that: including automatically controlled box, magnet crane, magnet and electronic scale, this automatically controlled box up end fixed mounting has the electronic scale, and this electronic scale top mount is equipped with the magnet crane, and fixed mounting has magnet on this magnet crane.

2. The electronic product lock screw detection device of claim 1, wherein: the magnet crane comprises a linear lifting motor module, a linear guide rail, a linear guide sleeve, an upper fixing plate, a magnet lifting fixing plate and a magnet fixing jig, wherein the linear guide rail is fixedly arranged at the four corners of the lower end face of the upper fixing plate, the linear guide sleeve is slidably sleeved on the linear guide rail and is fixedly arranged on the magnet lifting fixing plate, the linear lifting motor module is fixedly arranged on the upper fixing plate, the cylinder head of the linear lifting motor module is fixedly connected with the magnet lifting fixing plate, and the magnet fixing jig is fixedly arranged on the lower end face of the magnet lifting fixing plate.

3. The electronic product lock screw detection device of claim 1, wherein: the electronic scale is a precision weighing scale.

4. The electronic product lock screw detection device of claim 1, wherein: and an alarm device is fixedly arranged on the upper end face of the magnet lifting frame.

5. The electronic product lock screw detection device of claim 1, wherein: the magnet is a magnet capable of adjusting magnetic force.

6. A method for detecting a lock screw of an electronic product is characterized by comprising the following steps:

a. the electronic scale returns to zero;

b. placing the measured piece with the locked screw on an electronic scale, and weighing the weight of the measured piece by the electronic scale;

c. then starting the magnet lifting motor to drive the magnet to descend by the magnet lifting fixing plate, and weighing the weight of the measured piece when the magnet descends by the electronic scale;

d. and subtracting the weight weighed for the second time from the weight weighed for the first time to obtain whether the lock is missed or redundant screws are in the tested piece.

7. The electronic product lock screw detection method of claim 6, wherein: and c, driving the magnet to descend to a constant speed by the magnet lifting fixing plate, and recording the weighing value of the electronic scale in real time.

8. The electronic product lock screw detection method of claim 6, wherein: in the step c, the detection effect can be realized by enhancing the magnetic force of the magnet body under the condition of not changing the distance between the magnet and the product through the characteristic that the magnetic force of the magnet can be adjusted.

Technical Field

The invention relates to the field of detection devices, in particular to a detection device and a detection method for an electronic product lock screw.

Background

In carrying out electronic product production, appear easily that the inside condition that appears locking screw lacks or have the locking screw to omit in the product of product, lead to influencing the quality problem of product, and this condition is difficult to directly detect out through the outward appearance.

Disclosure of Invention

The invention mainly aims to provide a device for detecting a lock screw of an electronic product, which is convenient for detecting whether the lock screw is made of ferromagnetic materials and a product body is made of non-ferromagnetic materials, and can detect whether the lock screw is missed or redundant screws are in a detected piece or not when the product is in a non-opening state.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides an electronic product lock screw detection device which characterized in that: including automatically controlled box, magnet crane, magnet and electronic scale, this automatically controlled box up end fixed mounting has the electronic scale, and this electronic scale top mount is equipped with the magnet crane, and fixed mounting has magnet on this magnet crane.

Further, the magnet crane includes the linear elevator motor module, linear guide, the linear guide cover, an upper fixed plate, magnet lift fixed plate and the fixed tool of magnet, the equal fixed mounting in four corners department of terminal surface has linear guide under this upper fixed plate, sliding sleeve is equipped with the linear guide cover on this linear guide, this linear guide cover fixed mounting is on magnet lift fixed plate, fixed mounting has the linear elevator motor module on this upper fixed plate, the jar head and the magnet lift fixed plate fixed connection of this linear elevator motor module, terminal surface fixed mounting has the fixed tool of magnet under this magnet lift fixed plate.

Furthermore, the electronic scale is a precision weighing scale.

Furthermore, an alarm device is fixedly arranged on the upper end face of the magnet lifting frame.

Further, the magnet is a magnet capable of adjusting magnetic force.

A method for detecting a lock screw of an electronic product comprises the following steps:

a. the electronic scale returns to zero;

b. placing the measured piece with the locked screw on an electronic scale, and weighing the weight of the measured piece by the electronic scale;

c. then starting the magnet lifting motor to drive the magnet to descend by the magnet lifting fixing plate, and weighing the weight of the measured piece when the magnet descends by the electronic scale;

d. and subtracting the weight weighed for the second time from the weight weighed for the first time to obtain whether the lock is missed or redundant screws are in the tested piece.

Furthermore, in the step c, the magnet lifting fixing plate drives the magnet to descend at a constant speed, and the weighing value of the electronic scale is recorded in real time.

Furthermore, in the step c, the detection effect can be realized by enhancing the magnetic force of the magnet body under the condition of not changing the distance between the magnet and the product through the characteristic that the magnet can adjust the magnetic force.

Compared with the prior art, the invention has the beneficial effects that:

the invention can detect whether the product is locked or not or whether redundant screws are in the tested piece or not when the product is in a non-opening state.

Drawings

FIG. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention.

Reference numerals

1. An electric control box body; 2. a magnet lifting frame; 3. a magnet; 4. an electronic scale; 5. a linear lifting motor module; 6. a linear guide rail; 7. a linear guide sleeve; 8. an upper fixing plate; 9. a magnet lifting fixing plate; 10. a magnet fixing jig; 11. and an alarm device.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

Referring to fig. 1-2, an electronic product lock screw detection device is characterized in that: including automatically controlled box, magnet crane, magnet and electronic scale, this automatically controlled box up end fixed mounting has the electronic scale, and this electronic scale top mount is equipped with the magnet crane, and fixed mounting has magnet on this magnet crane.

The magnet crane comprises a linear lifting motor module, a linear guide rail, a linear guide sleeve, an upper fixing plate, a magnet lifting fixing plate and a magnet fixing jig, wherein the linear guide rail is fixedly arranged at the four corners of the lower end face of the upper fixing plate, the linear guide sleeve is slidably sleeved on the linear guide rail and is fixedly arranged on the magnet lifting fixing plate, the linear lifting motor module is fixedly arranged on the upper fixing plate, the cylinder head of the linear lifting motor module is fixedly connected with the magnet lifting fixing plate, and the magnet fixing jig is fixedly arranged on the lower end face of the magnet lifting fixing plate.

The electronic scale is a precision weighing scale.

And an alarm device is fixedly arranged on the upper end face of the magnet lifting frame.

The magnet is a magnet capable of adjusting magnetic force.

Example 1:

the electronic control box body is electrified and opened, a plurality of intact complete products are placed in a material placing tray of the electronic scale manually or mechanically, the weighing value of the electronic scale of each sample product is recorded one by one, then the magnet is lowered to a specified height, the weighing value after the magnet is lowered is obtained again, the weighing value of the second time is subtracted from the first weighing value, a judgment value domain with a very small error can be obtained, the judgment value can be obtained through detection of the sample, and when the magnet is lowered gradually, the weighing value of the sample is stably lowered.

After the judgment value is obtained, a product to be detected is placed on an electronic scale through manual feeding means or automatic feeding and discharging means such as a mechanical arm, the original weighing value of the product to be detected is recorded, then the magnet is controlled to descend at a constant speed through a magnet lifting frame, the real-time weighing value of the product to be detected is recorded when the magnet descends, the magnetic attraction weighing value after the magnet descends to a specified height is recorded, the magnetic attraction weighing value is subtracted from the original weighing value, the quantity lower than the judgment value domain is obtained, an alarm device gives an alarm, the product to be detected is unqualified, and the lock screw in the product is absent.

If the numerical value is normal, normal blanking is carried out through means of automatic feeding and blanking devices such as manual blanking or mechanical arms.

Example 2:

the electronic control box body is electrified and opened, a plurality of intact complete products are placed in a material placing tray of the electronic scale manually or mechanically, the weighing value of the electronic scale of each sample product is recorded one by one, then the magnet is lowered to a specified height, the weighing value after the magnet is lowered is obtained again, the weighing value after the magnet is lowered is subtracted from the first weighing value, a judgment value with a very small error can be obtained, the judgment value can be obtained through detection of the sample, and when the magnet is lowered gradually, the weighing value of the sample is stably lowered.

After the judgment value is obtained, a product to be detected is placed on an electronic scale through a manual or mechanical arm, the original weighing value of the product to be detected is recorded, then the magnet is controlled by a magnet lifting frame to descend at a constant speed, when the magnet descends, the real-time weighing value of the product to be detected is recorded, the magnetic attraction weighing value after the magnet descends to a specified height is recorded, the magnetic attraction weighing value is subtracted from the original weighing value to obtain the quantity higher than the judgment value, an alarm device gives an alarm, the product to be detected is unqualified, and the lock screw in the alarm device has a redundant condition.

Example 3:

the electronic control box body is electrified and opened, a plurality of intact complete products are placed in a material placing tray of the electronic scale manually or mechanically, the weighing value of the electronic scale of each sample product is recorded one by one, then the magnet is lowered to a specified height, the weighing value after the magnet is lowered is obtained again, the weighing value of the second time is subtracted from the first weighing value, a judgment value domain with a very small error can be obtained, the judgment value can be obtained through detection of the sample, and when the magnet is lowered gradually, the weighing value of the sample is stably lowered.

After the judgment value is obtained, a product to be detected is placed on the electronic scale through a manual or mechanical arm, the original weighing value of the product to be detected is recorded, then the magnet is controlled by the magnet lifting frame to descend at a constant speed, when the magnet descends, the real-time weighing value of the product to be detected is recorded, the magnetic attraction weighing value after the magnet descends to a specified height is recorded, the magnetic attraction weighing value is subtracted from the original weighing value, the quantity which is lower than the judgment value or accords with the judgment value is obtained, the fluctuation condition that the real-time value is unstably descended exists, and the falling condition is caused when the lock screw is unlocked.

It should be noted that the invention judges whether the locking screw thread is missing or the situation that the redundant screw thread is in the tested piece exists in the product by changing the attraction force of the magnet, wherein the adjustment of the attraction force of the magnet can be changed in a lifting frame mode, and the magnetic force can be changed by the adjustability of the magnetic force of the magnet.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.