CN209727003U - A dual-axis diameter tolerance and wheelbase rapid detection device - Google Patents

Abstract

The utility model discloses a double-axis diameter tolerance and wheelbase rapid detection device, comprising 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 communicates with 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 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 communicates with the other end of the upper limit section There are two gauges; the sides of the two gauges are connected by drawer-type connectors to form a telescopic connection; the upper end surface and the lower end surface of the fixed part and the drawing part are provided with scale scales. The utility model can detect the diameter tolerance of two shafts on the same plane at the same time, and can detect the wheelbase parameters of the two shafts at the same time. The utility model is convenient to use during detection, the detection process takes less time, and the work efficiency is higher.

Description

A dual-axis diameter tolerance and wheelbase rapid detection device

technical field

The utility model relates to the field of shaft tolerance detection and measurement, in particular to a dual-axis diameter tolerance and wheelbase rapid detection device.

Background technique

The general method of shaft tolerance detection is to use two hole gauges, respectively use two hole gauges whose diameter is the lower tolerance limit and upper tolerance limit of the shaft to measure. The shaft can be inserted into the gauge whose diameter is the upper tolerance limit and cannot be inserted. A gauge at the lower tolerance limit indicates that the shaft is acceptable. For a part with two shafts on a plane, since the two shafts often involve the mutual cooperation of the gears installed on the two shafts, the dual-axis wheelbase detection of the two shafts is required. Existing hole gauges can only measure the tolerance of single-axis diameters, and each axis needs to be tested with two hole gauges, the lower limit of tolerance and the upper limit of tolerance, and the wheelbase of two axes on the same plane cannot be tested. It is inconvenient to use, the detection process takes a long time, and the work efficiency is low.

Utility model content

The purpose of this utility model is to provide a dual-axis diameter tolerance and wheelbase rapid detection device for the above-mentioned deficiencies in the prior art. The detection device can simultaneously detect the diameter tolerances of two shafts on the same plane, and can simultaneously detect the wheelbase parameters of the two shafts, is convenient to use during detection, takes less time in the detection process, and has higher work efficiency.

The technical scheme that realizes the utility model purpose is:

A dual-axis diameter tolerance and wheelbase rapid detection device, 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, wherein one end of the upper limit section is connected to 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 communicates with the other end of the upper limit section;

There are two gauges;

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 drawer part, the fixed part is connected to the side of one gauge, and the drawer part is connected to the other side connection of the gauge;

Both the upper end surface and the lower end surface of the fixing part and the drawing part are provided with a scale scale.

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

Further, the fixing part or the drawing 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 tolerance limit of the shaft, and the lower limit section is the lower tolerance limit of the shaft. If the measured shaft can be inserted into the upper limit section but not the lower limit section, it means that the diameter value of the measured shaft is between the lower tolerance limit and the upper tolerance limit. The distance between the two gauges meets the tolerance requirements; the device consists of two gauges corresponding to the two axes, and the connecting part adopts a drawer connection to form a telescopic connection, which can easily adjust the relative distance between the two gauges. The drawer connection is characterized by stable The structure is not easy to deform, 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 this device are inserted into the two measured shafts 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 provided with chamfers, according to the principle of ergonomics, the operation of inserting is not easy. It requires high concentration of the operator, so it is convenient to operate the two shafts at the same time, which greatly improves the detection efficiency of the diameter tolerance of the measured shaft. One of the gauges has a sliding connection with the scale part of the scale that can move up and down, so that the two Two gauges can be asynchronous when moving up and down, that is, the tolerance detection of the two measured axes can be carried out separately without affecting each other; when the two 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 near-end distance and the far-end distance of the two measured axes can be measured. Since the two axes have certain errors, the two distance parameters are independent and have The respective tolerance requirements need to be measured separately. The two distances are read separately through the upper and lower scales connected by the drawer. The scales of the two scales are set according to the two distances of the proximal distance and the distal distance, that is, the upper end surface of the fixed part Plus the upper end surface of the drawer is the reading of the upper scale, and the scale reading increases with the elongation of the drawer connector, while the lower end surface of the fixed part plus the lower end surface of the drawer is the reading of the lower scale, and the scale reading is connected with the drawer The pieces are compressed and reduced. Adjusting the ruler of the connecting piece can quickly measure these two parameters separately, and determine whether the two parameters are within their tolerance ranges. When measuring the proximal distance of the two measured axes, the two gauges are stretched in opposite directions at the same time, so that When the upper scale is stretched to the maximum value, the near-end distance reading of the two measured axes can be obtained; when measuring the far-end 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 readings of the far-end distances of the two measured axes can be obtained, and thus the wheelbase parameters of the two measured axes can be obtained.

The utility model can detect the diameter tolerance of two shafts on the same plane at the same time, and can detect the wheelbase parameters of the two shafts at the same time. The utility model is convenient to use during detection, the detection process takes less time and the work efficiency is higher.

Description of drawings

Fig. 1 is a schematic structural view of a dual-axis diameter tolerance and wheelbase rapid detection device in an embodiment;

Fig. 2 is a schematic diagram of detecting the near-end distance of two measured shafts by the dual-axis diameter tolerance and wheelbase rapid detection device in the embodiment;

Fig. 3 is a schematic diagram of the detection of the distance between the distal ends of the two measured shafts by the dual-axis diameter tolerance and wheelbase rapid detection device in the embodiment.

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

Detailed ways

The content of the utility model will be further elaborated below in conjunction with the embodiments and accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example:

As shown in Figure 1, a dual-axis 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 the upper limit section 2 and the lower limit section 3. One end of the upper limit section 2 communicates with 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; the lower limit Section 3 communicates with 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 drawer part 5, the fixed part 4 is connected to the side of one of the gauges, and the drawer part 5 connected to the side of another gauge;

The upper end surface and the lower end surface of the fixed part 4 and the drawing part 5 are provided with a scale scale, wherein the scale scale on the upper end surface of the fixed part 4 plus the upper end surface of the drawing part 5 is the upper scale 6, and the lower end surface of the fixed part 4 is added The scale scale on the lower end surface of the upper drawing 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 fixing part 4 or the drawing part 5 is slidably connected to the side of the gauge 1 . In this example, the drawing part 5 is slidably connected to one of the gauges. The side of the gauge is provided with a chute 9, and the rear end of the drawing part 5 is fitted with the chute 9 so that the drawing 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 tolerance limit of the shaft, and the lower limit section 3 is the lower tolerance limit of the shaft. The measured shaft can be inserted into the upper limit section 2 but cannot be inserted into the lower limit section 3, indicating that the diameter value of the measured shaft is between the lower tolerance limit and the lower tolerance limit. The upper limit of the tolerance meets the tolerance requirements; the device consists of two gauges corresponding to the two axes, and the connecting part adopts a drawer connection to form a telescopic connection, which can conveniently adjust the relative distance of the two gauges, and the drawer connection It is characterized by a stable structure that is not easy to deform, 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 this device are inserted into the two measured shafts at the same time, that is, one gauge is inserted into the measured shaft 10, and the other gauge is inserted into the measured shaft 2 11. Since the upper limit section 2 and the lower limit section of the gauge 3. There are chamfers 8 on the inner edge of the opening end. According to the principle of ergonomics, the operation of inserting does not require the operator's high attention, so it is convenient to operate the two shafts at the same time, which makes the diameter of the measured shaft The tolerance detection efficiency is greatly improved. One of the gauges and the scale part of the scale have a sliding connection that can move up and down, so that the two gauges can move up and down asynchronously, that is, the measured axis 1 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, by adjusting the connecting part of the two gauges, the two measured gauges can be measured The near-end distance and the far-end distance of the measurement axis, because both axes have a certain error, so these two distance parameters are independent, have their own tolerance requirements, and need to be measured separately. These two distances are connected by a drawer The upper and lower scales are read separately, and the scales of the two scales are set according to the two distances of the proximal distance and the distal distance respectively, that is, the upper end surface of the fixed part 4 plus the upper end surface of the drawing part 5 is the reading of the upper scale 6, and the scale The reading increases as the drawer connector is elongated, while the lower end surface of the fixed part 4 plus the lower end surface of the drawer part 5 is the reading of the lower scale 7, and the scale reading decreases as the drawer connector is compressed.

Adjusting the scale scale of the connecting piece can quickly measure these two parameters separately, and determine whether the two parameters are respectively within their tolerance ranges. As shown in Figure 2, when measuring the near-end distance of the measured axis 10 and the measured axis 2 11, the two gauges are stretched in the opposite direction 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 scale 6 Stretch to the maximum value, and the near-end distance readings of measured axis 1 10 and measured axis 2 11 can be obtained from the scale 6 on the upper scale; as shown in Figure 3, when measuring the far-end distances of the two measured axes Compress the two gauges in the opposite direction, so that the inner wall of the distal 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, the measured axis 1 10 and the measured axis 2 can be obtained. 11 of the far-end distance readings, so as to obtain the wheelbase parameters of the two measured axes.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (3)

1. a kind of twin shaft diameter tolerance and wheelbase device for fast detecting, which is characterized in that including gauge, the gauge is hollow Tubular body, the inner hollow diameter of gauge are divided into two sections, i.e. upper limit section and lower limit segment, wherein one of one end of upper limit section and tubular body Port connection, internal diameter are identical as the tolerance limit value of measured axis；Lower limit segment is located in tubular body, the public affairs of internal diameter and measured axis Poor lower limit value is identical；Lower limit segment is connected to the other end of upper limit section；

The gauge is two；

The side of two gauges connects to form telescopic connection by using drawer type connector；Drawer type connector includes solid Determine portion and withdrawing part, the fixed part is connect with the side of one of gauge, the side of the withdrawing part and another gauge Connection；

The upper surface and lower end surface of the fixed part and withdrawing part are equipped with scale label.

2. twin shaft diameter tolerance according to claim 1 and wheelbase device for fast detecting, which is characterized in that the upper limit section Chamfering is equipped with the open end inner edge of lower limit segment.

3. twin shaft diameter tolerance according to claim 1 and wheelbase device for fast detecting, which is characterized in that the fixed part Or withdrawing part and the side of gauge are slideable connection.