CN200955946Y - An inner width detection device - Google Patents

Abstract

Equipment for measuring clear width consists of a pedestal (1), a fixed measuring rod (2), a flexible measuring rod (3), a leading rod (4) and a meter (5). The fixed measuring rod (2) is fixed on the pedestal (1). A long channel (6) is also on the pedestal (1). The flexible measuring rod (3) is arranged inside the long channel (6), and is connected to one end of the leading rod (4). The meter (5) consists of the meter head (7), and the meter head (7) is connected to the other end of the leading rod (4).The utility model can not only accurately locate the product to be examined, but also keeps parallel during the process of examination. Therefore, the accuracy for measurement is enhanced. Besides, since the distance between the fixed measuring rod and the flexible measuring rod can be adjusted, possible damages to the products during examination can be prevented. The utility model is simple in structure and easy to operate, and the cost for production is low.

Description

An inner width detection device

technical field

The utility model relates to a detection device, in particular to a detection device for detecting the inner width of a product.

Background technique

In the prior art, in order to detect the inner width of many products, the inner width D of the hinge of the mobile phone cover as shown in Figure 1 usually uses three kinds of detection tools: vernier caliper, limit gauge block, and detection projector. Each inspection tool has its own flaws. Among them, since the vernier caliper requires the measurer to hold the product to be tested and the testing tool to carry out the test, it is difficult to ensure the horizontal or vertical state during the test, so it has a great impact on the accuracy of the test. Due to the hardness of the limit gauge block itself compared with the product to be tested, if it is not properly operated during the testing process, it is easy to cause damage to the surface of the product to be tested, thereby affecting product quality. However, the inspection projector is expensive due to the precision of the instrument, and has high requirements on the use environment, so it is not practical in the usual mass production process.

Utility model content

The purpose of this utility model is to provide a kind of inner width detection with high accuracy, no damage to the product to be tested and low cost for the defects of inaccurate detection results, damage to the product to be tested and high price of the existing inner width detection tool device.

The inner width detection device provided by the utility model includes a base 1, a fixed detection column 2, a movable detection column 3, a guide rod 4 and a detection table 5, the fixed detection column 2 is fixed on the base 1, and the base 1 also includes a long groove 6, The movable detection column 3 is located in the slot 6 and connected to one end of the guide rod 4 , the detection meter 5 includes a meter head 7 connected to the other end of the guide rod 4 .

The inner width detection device provided by the utility model can not only accurately locate the product to be tested, but also ensure the horizontal state during the detection process, thereby improving the detection accuracy. Moreover, since the distance between the movable detection column and the fixed detection column can be adjusted, damage to the product to be tested during the detection process can be avoided. At the same time, the inner width detection device provided by the utility model also has the advantages of simple structure, low cost, and easy operation.

Description of drawings

Fig. 1 is the local structural representation of a kind of product to be tested that the utility model is applicable;

Fig. 2 is a three-dimensional structural schematic diagram of the inner width detection device provided by the utility model;

Fig. 3 is a three-dimensional structural schematic diagram of an embodiment of the inner width detection device provided by the present invention;

Fig. 4 is a structural schematic diagram of the calibration block of the inner width detection device provided by the present invention;

Fig. 5 is a schematic structural diagram of the first use state of the inner width detection device provided by the present invention;

Fig. 6 is a schematic structural diagram of the second use state of the inner width detecting device provided by the present invention.

Detailed ways

Below, in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figure 2, the inner width detection device provided by the utility model includes a base 1, a fixed detection column 2, a movable detection column 3, a guide rod 4 and a detection table 5, the fixed detection column 2 is fixed on the base 1, and the base 1 It also includes a long slot 6 in which the activity detection column 3 is located and connected to one end of the guide rod 4 , and the detection meter 5 includes a meter head 7 connected to the other end of the guide rod 4 .

Wherein, the base 1 is used to carry the product to be tested, so according to the difference of the product to be tested, the base 1 can be in various shapes, such as rectangle, circle, etc., when the product to be tested is rectangular, the base 1 is preferably rectangle. Moreover, the size of the base 1 can also be determined according to the size of the product to be tested.

The fixed detection column 2 is used as a fixed end for positioning the product to be tested, and can be fixed on any position of the base 1 in various ways, such as by bonding, welding, etc., or can form a hole on the base 1, through an interference fit Fix the fixed detection column 2 to the base 1.

The base 1 also includes a long slot 6 . The movable detection column 3 as the movable end for positioning the product to be tested is located in the long groove 6 and can move along the long groove 6 . Preferably, the length direction of the long groove 6 is consistent with the connection direction of the fixed detection column 2 and the movable detection column 3 .

The guide rod 4 is used to connect the movable detection column 3 and the detection meter 5 . The guide rod 4 can penetrate into the inside of the base 1 from the side of the base 1 or not, so as to be connected with the activity detection column 3. Column 3 is connected. Usually, one end of the guide rod 4 can be connected with the movable detection column 3 in various ways, such as through bonding, welding, screw connection, interference fit and so on. Moreover, preferably, the longitudinal direction of the guide rod 4 is consistent with the longitudinal direction of the long groove 6 .

The detection meter 5 can be various instruments capable of realizing detection functions, such as a digital dial indicator or a mechanical dial indicator, preferably a digital dial indicator. The structure of the detection table 5 is well known to those skilled in the art. Normally, the test meter 5 includes a meter head 7 and a spring inside the test meter 5, and the meter head 7 is connected to the spring inside the test meter. The other end of the guide rod 4 is connected with the meter head 7 of the detection meter 5 . Therefore, due to the action of the spring inside the detection meter, the meter head 7 can drive the guide rod 4 to move, thereby driving the movable detection column 3 connected to one end of the guide rod 4 to move along the long groove 6 .

Preferably, as shown in FIG. 3 , the inner width detection device provided by the present invention further includes a detection table bracket 8 for supporting the detection table 5 . The test meter 5 can be fixed to the test meter support 8 in various ways, such as screw connection, riveting, bonding, etc. The test meter bracket 8 can be fixed to the base 1 by various means, such as screw connection, riveting, bonding, etc., preferably to the side of the base 1 . Therefore, the gauge head 7 of the gauge 5 can be connected to the other end of the guide rod 4 through the gauge bracket 8 .

Preferably, as shown in FIG. 3 , the inner width detection device provided by the present invention also includes a base support member 9 installed on the base 1 for supporting the base 1 to a certain height to facilitate detection. The base supporting member 9 can adopt various forms of supporting members as required, such as screws, studs, etc., and the number and position can be determined as required.

Preferably, as shown in FIG. 4 , the inner width detection device provided by the present invention further includes a calibration block 10 . The shape of the calibration block 10 is a square frame, and its size can be determined according to the standard size of the product to be tested. For example, when the standard value of the inner width D of the product to be tested is 39.85 mm, the inner width of the frame of the calibration block 10 is 40 mm. The calibration block 10 is used to be placed on the base 1 before testing the product to be tested, and the inner width of the calibration block 10 is defined by the fixed detection column 2 and the movable detection column 3 . And according to the position where the active detection column 3 is now, the detection table 5 is zeroed, specifically, observe the reading of the detection table 5 at this time, if the reading is not zero, then press the return to zero key on the detection table 5 to make return to zero. Usually, according to the frequency of use, after a certain number of products are detected, the calibration block 10 can be used to perform a zero calibration on the detection meter 5 to ensure the accuracy of product detection.

Next, with reference to FIG. 5 and FIG. 6 , the use of the inner width detection device provided by the present invention will be described. Here, taking the standard value of the inner width D of the product to be tested as 39.85 mm and the allowable error within the range of plus 0.08 mm to minus 0.03 mm as an example, the frame body of the calibration block 10 has an inner width of 40 mm.

First, zero calibration of the detection table 5 is carried out. Move the movable detection column 3 to the side of the fixed detection column 2, and place the calibration block 10 on the base 1 under the condition that the fixed detection column 2 and the movable detection column 3 will not interfere with the calibration block 10. Under the action of the spring inside Table 5, the movable detection column 3 restores the elastic force of elastic deformation by means of the spring, and moves to the side away from the fixed detection column 3 through the guide column 4, so that the fixed detection column 2 and the movable detection column 3 are close to the calibration block 10 the inner wall of the frame, to limit the inner width of the calibration block 10 frames, as shown in Figure 5, at this time, if the reading of the detection table 5 is not zero, then press the return to zero key on the detection table 5 to make it to zero. After that, move the movable detection column 3 to the side of the fixed detection column 2 , and remove the calibration block 10 from the base 1 under the condition that the fixed detection column 2 and the movable detection column 3 will not interfere with the calibration block 10 .

Then, the inner width of the product to be tested can be detected. First, move the movable detection column 3 to the side of the fixed detection column 2, and place the product 11 to be tested on the base 1 under the condition that the fixed detection column 2 and the movable detection column 3 will not interfere with the product 11 to be tested, At this time, under the action of the spring inside the detection table 5, the movable detection column 3 restores the elastic force of elastic deformation by means of the spring, and moves to the side away from the fixed detection column 3 through the guide column 4, so that the fixed detection column 2 and the movable detection column 3 close to the inner wall of the product to be tested 11 to limit the inner width of the product to be tested 11 , as shown in FIG. 6 . At this time, observe the reading of the test table 5. If the reading is within the range of plus 0.07 mm to plus 0.18 mm, the product is qualified. If the reading exceeds the range of plus 0.07 mm to plus 0.18 mm, the product is unqualified. The calculation method of the allowable reading range is: 40-(39.85+0.08)=0.07 mm and 40-(39.85-0.03)=0.18 mm. In practice, the allowable reading range can be written on paper and pasted on the test sheet for easy observation. After that, move the movable detection column 3 to the side of the fixed detection column 2, and remove the measured product 11 from the base 1 under the condition that the fixed detection column 2 and the movable detection column 3 will not interfere with the measured product 11. Come down to complete the inspection of a product. When testing a large number of products, you only need to put the product to be tested on the base and observe whether the reading of the test meter is within the determined allowable range, so the operation is very simple and the work efficiency is improved.

Claims (7)

1. inner width pick-up unit, it is characterized in that, described inner width pick-up unit comprises base (1), fixed test post (2), motion detection post (3), guide rod (4) and detects table (5), fixed test post (2) is fixed on the base (1), also comprise elongated slot (6) on the base (1), motion detection post (3) is arranged in elongated slot (6) and is connected with an end of guide rod (4), detects table (5) and comprises gauge outfit (7), and gauge outfit (7) is connected with the other end of guide rod (4).

2. inner width pick-up unit according to claim 1 is characterized in that, the length direction of described elongated slot (6) is consistent with the line direction of fixed test post (2) and motion detection post (3).

3. inner width pick-up unit according to claim 1 is characterized in that, described guide rod (4) penetrates base (1) from the side of base (1) inside is connected with motion detection post (3).

4. inner width pick-up unit according to claim 1 is characterized in that, the length direction of described guide rod (4) is consistent with the length direction of elongated slot (6).

5. inner width pick-up unit according to claim 1 is characterized in that, described detection table (5) is digital dial gauge.

6. inner width pick-up unit according to claim 1 is characterized in that, described inner width pick-up unit also comprises the detection table support (8) that is fixed on base (1) side, and described detection table (5) is fixed on the detection table support (8).

7. inner width pick-up unit according to claim 1 is characterized in that, described inner width pick-up unit also comprises the base support part (9) that is installed on the base (1).

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