CN110057273B - Quick detection device for diameter tolerance and wheelbase of double shafts - Google Patents

Abstract

The invention discloses a double-shaft diameter tolerance and wheelbase rapid detection device, which comprises a gauge, wherein the gauge is a hollow tubular body, the hollow inner diameter of the gauge is divided into two sections, namely an upper limit section and a lower limit section, one end of the upper limit section is communicated with one port of the tubular body, and the inner diameter of the upper limit section is the same as the upper limit value of the tolerance of a detected shaft; the lower limit section is positioned in the tubular body, and the inner diameter of the lower limit section is the same as the tolerance lower limit value of the measured shaft; the lower limit section is communicated with the other end of the upper limit section; the number of the gauges is two; the side surfaces of the two gauges are connected by adopting a drawer type connecting piece to form telescopic connection; the upper end face and the lower end face of the fixing part and the drawing part are respectively provided with a scale mark. The invention can simultaneously detect the diameter tolerance of two shafts on the same plane, can simultaneously detect the wheelbase parameters of the two shafts, is convenient to use during detection, has shorter time consumption in the detection process and higher working efficiency.

Description

A rapid detection device for biaxial diameter tolerance and wheelbase

Technical field

The invention relates to the field of shaft tolerance detection and measurement, and in particular to a biaxial diameter tolerance and wheelbase rapid detection device.

Background technique

The general method for testing the tolerance of a shaft is to use two hole gauges, one with a diameter of the lower limit of the tolerance and an upper limit of the tolerance for measurement. The shaft can be inserted into a gauge with a diameter of the upper limit of the tolerance and cannot be inserted into the shaft. Gauges with lower tolerance limits indicate that the shaft is acceptable. For parts with two axes on a plane, since the two axes often involve the mutual cooperation of the gears installed on the two axes, the dual-axis wheelbase detection of the two axes must be carried out. Existing hole gauges can only measure the tolerance of the diameter of a single axis. Each axis must be tested with two hole gauges with a lower limit of tolerance and an upper limit of tolerance. They cannot detect the wheelbase of two axes on the same plane. During testing, It is inconvenient to use, the detection process takes a long time, and the work efficiency is low.

Contents of the invention

The purpose of the present invention is to provide a biaxial diameter tolerance and wheelbase rapid detection device in view of the above-mentioned shortcomings of the prior art. This kind of detection device can detect the diameter tolerance of two axes on the same plane at the same time, and can detect the wheelbase parameters of the two axes at the same time. It is easy to use during detection, the detection process takes a short time, and the work efficiency is high.

The technical solution to achieve the purpose of the present invention is:

A device for rapid detection of biaxial diameter tolerance and wheelbase, including a gauge. The gauge is a hollow tubular body. The hollow inner diameter of the gauge is divided into two sections, namely an upper limit section and a lower limit section. One end of the upper limit section is connected to the end of the tubular body. One port is connected, and its inner diameter is the same as the upper tolerance limit of the measured shaft; the lower limit section is located in the tubular body, and its inner diameter is the same as the lower tolerance limit of the measured shaft; the lower limit section is connected to the other end of the upper limit section;

Said gauges are two;

The sides of the two gauges are connected by a drawer-type connector to form a telescopic connection; the drawer-type connector includes a fixed part and a pull-out part, the fixed part is connected to the side of one of the gauges, and the pull-out part is connected to the other Side connections for gauges;

The upper end surface and the lower end surface of the fixed part and the pull-out part are both provided with scales.

Furthermore, the inner edges of the opening ends of the upper limit section and the lower limit section are provided with chamfers.

Furthermore, the fixed part or the pull-out part is slidably connected to the side of the gauge.

The upper limit section of the hollow inner diameter of the gauge is the upper limit of the tolerance of the shaft, and the lower limit section is the lower limit of the tolerance of the shaft. The measured shaft can be inserted into the upper limit section but not the lower limit section, which means that the diameter value of the measured shaft is between the lower limit of the tolerance and the upper limit of the tolerance. time to meet the tolerance requirements; this device consists of two gauges corresponding to two axes respectively, and the connection part adopts a drawer-type connection to form a telescopic connection, which can easily adjust the relative distance of the two gauges. The drawer-type connection is characterized by stability The structure is not easy to deform, and the distance between the two gauges can be accurately adjusted with proper lubrication.

When in use, the two gauges of this device are inserted into the two measured axes at the same time. Since the inner edges of the opening ends of the upper limit section and the lower limit section of the gauge are chamfered, the inserting operation is not easy according to ergonomic principles. It requires the operator's high attention, so it is easy to operate both axes at the same time, which greatly improves the detection efficiency of the diameter tolerance of the measured axis. One of the gauges and the scale part of the ruler have a sliding connection that can move up and down, making the two The two gauges can be moved up and down asynchronously, that is, the tolerance detection of the two measured axes can be carried out separately without affecting each other; when both axes are within the tolerance range, that is, both axes are inserted into the two gauges. In the upper limit section, by adjusting the connecting part of the two gauges, the proximal distance and the far-end distance of the two measured axes can be measured. Since both axes have certain errors, these two distance parameters are independent and have The respective tolerance requirements need to be measured separately. These two distances are read separately through the upper and lower scales of the drawer-type connection. The scales of the two scales are set according to the proximal distance and the far-end distance, that is, the upper end surface of the fixed part. Adding the upper end face of the pull-out part is the reading of the upper scale, and the scale reading increases as the drawer connector is stretched, while the lower end face of the fixed part plus the lower end face of the pull-out part is the reading of the lower scale, and the scale reading increases with the drawer connection The pieces are compressed and reduced. Adjust the ruler of the connector to quickly measure these two parameters separately and determine whether the two parameters are within their tolerance range. When measuring the distance between the proximal ends of the two measured axes, stretch the two gauges in opposite directions at the same time. When the upper scale is stretched to the maximum value, the proximal distance reading of the two measured axes can be obtained; when measuring the distal distance of the two measured axes, the two gauges are compressed in opposite directions at the same time, so that the lower scale is reduced to the minimum value. , the distal distance readings of the two measured axes can be obtained, thereby obtaining the wheelbase parameters of the two measured axes.

The invention can simultaneously detect the diameter tolerance of two axes on the same plane, and can detect the wheelbase parameters of the two axes at the same time. It is easy to use during detection, the detection process consumes less time, and the work efficiency is high.

Description of the drawings

Figure 1 is a schematic structural diagram of the biaxial diameter tolerance and wheelbase rapid detection device in the embodiment;

Figure 2 is a schematic diagram of the biaxial diameter tolerance and wheelbase rapid detection device detecting the distance between the proximal ends of the two measured axes in the embodiment;

Figure 3 is a schematic diagram of the biaxial diameter tolerance and wheelbase rapid detection device detecting the distance between the distal ends of the two measured axes in the embodiment.

In the figure, 1. Gauge 2. Upper limit section 3. Lower limit section 4. Fixed part 5. Pulling part 6. Upper scale 7. Lower scale 8. Chamfer 9. Chute 10. Measured axis 11. Measured axis two.

Detailed ways

The content of the present invention will be further described below with reference to the embodiments and drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Example:

As shown in Figure 1, a biaxial diameter tolerance and wheelbase rapid detection device includes a gauge 1. The gauge 1 is a hollow tubular body. The hollow inner diameter of the gauge 1 is divided into two sections, namely an upper limit section 2 and a lower limit section. 3. One end of the upper limit section 2 is connected to a port of the tubular body, and its inner diameter is the same as the upper tolerance limit of the measured shaft; the lower limit section 3 is located in the tubular body, and its inner diameter is the same as the lower tolerance limit of the measured shaft; lower limit Section 3 is connected to the other end of upper limit section 2;

There are two gauges 1;

The sides of the two gauges are connected by a drawer-type connector to form a telescopic connection; the drawer-type connector includes a fixed part 4 and a pull-out part 5, the fixed part 4 is connected to the side of one of the gauges, and the pull-out part 5 Connect to the side of another gauge;

The upper end surface and lower end surface of the fixed part 4 and the pull-out part 5 are both provided with scale scales. The scale scale on the upper end face of the fixed part 4 plus the upper end face of the pull-out part 5 is the upper scale 6, and the scale scale on the lower end face of the fixation part 4 is The scale mark on the lower end surface of the upper pull-out part 5 is the lower scale 7 .

The inner edges of the opening ends of the upper limit section 2 and the lower limit section 3 are provided with chamfers 8 .

The fixed part 4 or the pull-out part 5 is slidably connected to the side of the gauge 1 . In this example, the pull-out part 5 is slidably connected to one of the gauges. A chute 9 is provided on the side of the gauge. The rear end of the pull-out part 5 is assembled with the chute 9 so that the pull-out part 5 can slide along the chute 9 slide.

The upper limit section 2 of the hollow inner diameter of gauge 1 is the upper limit of the tolerance of the shaft, and the lower limit section 3 is the lower limit of the tolerance of the shaft. The measured shaft can be inserted into the upper limit section 2 but not the lower limit section 3, which means that the diameter value of the measured shaft is between the lower limit of the tolerance and between the upper limit of the tolerance and meet the tolerance requirements; this device consists of two gauges corresponding to two axes respectively, and the connection part adopts a drawer-type connection to form a telescopic connection, which can easily adjust the relative distance of the two gauges. The drawer-type connection It is characterized by a stable structure that is not easily deformed, and it is easy to accurately adjust the distance between the two gauges under the condition of proper lubrication.

When in use, the two gauges of the device are inserted into the two measured axes at the same time, that is, one gauge is inserted into the measured axis 10, and the other gauge is inserted into the measured axis 2 11. Since the upper limit section 2 and the lower limit section of the gauge The inner edge of the open end of 3 is equipped with chamfer 8. According to the ergonomic principle, the insertion operation does not require high attention of the operator, so the two axes can be operated conveniently at the same time, which makes the measured shaft diameter The efficiency of tolerance detection is greatly improved. One of the gauges has a sliding connection with the scale part that can move up and down, so that the two gauges can move up and down out of sync, that is, the measured axis 10 and the measured axis 2 can be measured respectively. 11 tolerance detection without affecting each other; when both axes are within the tolerance range, that is, when both axes are inserted into the upper limit section 2 of the two gauges, the two measured objects can be measured by adjusting the connecting parts of the two gauges. The proximal distance and the far-end distance of the measuring axis, since both axes have certain errors, these two distance parameters are independent and have their own tolerance requirements. They need to be measured separately. These two distances are connected by a drawer type. The upper and lower scales are read separately. The scales of the two scales are set according to the proximal distance and the far end distance respectively. That is, the upper end surface of the fixed part 4 plus the upper end surface of the pull-out part 5 is the reading of the upper scale 6, and the scale The reading increases as the drawer connector is stretched, and the lower end surface of the fixed part 4 plus the lower end surface of the pull-out part 5 is the reading of the lower scale 7, and the scale reading decreases as the drawer connector is compressed.

By adjusting the scale of the connector, you can quickly measure these two parameters separately and determine whether the two parameters are within their tolerance range. As shown in Figure 2, when measuring the distance between the proximal ends of the measured axis 10 and the measured axis 2 11, stretch the two gauges in opposite directions at the same time, so that the inner wall of the proximal end of the upper limit section 2 is close to the two measured axes, so that the upper ruler 6 is stretched to the maximum value, and the proximal distance readings of the measured axis one 10 and the measured axis two 11 can be obtained from the upper scale 6 scale; as shown in Figure 3, when measuring the distal distance of the two measured axes at the same time Compress the two gauges in opposite directions, so that the inner wall of the far end of the upper limit section 2 is close to the two measured axes, and the lower scale 7 is reduced to the minimum value. From the scale of the lower scale 7, you can get the measured axis one 10 and the measured axis two. The distal distance reading of 11 is obtained to obtain the wheelbase parameter of the two measured axes.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (1)

1. A device for rapid detection of biaxial diameter tolerance and wheelbase, characterized in that it includes a gauge. The gauge is a hollow tubular body. The hollow inner diameter of the gauge is divided into two sections, namely an upper limit section and a lower limit section, wherein the upper limit section One end of the tubular body is connected to a port of the tubular body, and its inner diameter is the same as the upper tolerance limit of the measured shaft; the lower limit segment is located in the tubular body, and its inner diameter is the same as the lower tolerance limit of the measured shaft; the other end of the lower limit segment is the same as the upper limit segment. connected; Said gauges are two; The sides of the two gauges are connected by a drawer-type connector to form a telescopic connection; the drawer-type connector includes a fixed part and a pull-out part, the fixed part is connected to the side of one of the gauges, and the pull-out part is connected to the other Side connections for gauges; The upper and lower end surfaces of the fixed part and the pull-out part are equipped with scales; The inner edges of the opening ends of the upper limit section and the lower limit section are provided with chamfers; The fixed part or the pull-out part is slidably connected to the side of the gauge.