Adjustable outer diameter rapid detection device

Abstract

The utility model discloses an adjustable external diameter rapid detection device, which can rapidly and accurately detect the external diameter size and the roundness of a workpiece, and is adjustable in measuring range. Comprising a rectangular measuring base, strip-shaped grooves are formed in the two adjacent edges of the measuring base respectively, limiting check blocks are arranged in the strip-shaped grooves in a sliding fit mode, fastening screws are arranged on the limiting check blocks, strip-shaped holes are formed in the groove bottoms of the strip-shaped grooves in the longitudinal direction, the lower ends of the fastening screws penetrate through the strip-shaped holes and are matched with nuts, and limiting steps extending upwards are arranged at the outer ends of the limiting check blocks. A strip-shaped boss is arranged on the side, opposite to one limiting check block, of the measuring base, a mounting hole is formed in the strip-shaped boss, a transition pressing sleeve is arranged in the mounting hole, a digital display telescopic dial indicator is inserted into the transition pressing sleeve, a measuring head of the digital display telescopic dial indicator extends out of the mounting hole and is opposite to one limiting check block, and a locking screw is arranged on the strip-shaped boss. The locking screw is used for locking the digital display telescopic dial indicator.

Description

Technical Field

[0001] The utility model relates to the technical field of metal machining detection, in particular to an adjustable outer diameter rapid detection device. Background Art

[0002] In the current machining field, the external circle detection methods include inspection and testing. Under the high-precision external circle requirements, the rapid detection size of the external circle is particularly important for the adjustment and dimensional stability of machining. In the case of diverse external circle sizes and frequent transformation of products, improving the rapid detection and versatility of measuring tools is one of the ways to improve production efficiency and reduce costs. Summary of the invention

[0003] The utility model aims to overcome the shortcomings of the prior art and provide an adjustable outer diameter rapid detection device, which can rapidly and accurately detect the outer diameter size and roundness of a workpiece and has an adjustable measuring range.

[0004] The purpose of the utility model is achieved in this way:

[0005] An adjustable outer diameter rapid detection device comprises a rectangular measuring base, two adjacent sides of the measuring base are respectively provided with strip grooves in the vertical direction, each strip groove is respectively slidably matched with a limit stopper, a fastening screw is vertically arranged on the limit stopper, a strip hole is longitudinally arranged at the bottom of the strip groove, the lower end of the fastening screw passes through the strip hole, the strip hole is used for adjusting the position of the fastening screw, a nut is matched with a thread at the lower end of the fastening screw, the fastening screw and the nut lock the position of the limit stopper, an upwardly extending limit step is arranged at the outer end of the limit stopper, and the step surface of the limit step is used for limiting the outer circle of the workpiece;

[0006] A strip boss is provided parallel to the side of the measuring base opposite to a limit block, a mounting hole is provided on the strip boss, a transition clamping sleeve is provided in the mounting hole, an opening groove is provided in the longitudinal direction, the transition clamping sleeve is elastically fitted with the hole wall of the mounting hole for positioning, a digital telescopic micrometer is inserted into the transition clamping sleeve, a measuring head of the digital telescopic micrometer extends out of the mounting hole and is opposite to a limit block, a locking screw is provided on the vertical thread along the upper edge of the strip boss, an end of the locking screw is in contact with the transition clamping sleeve, the locking screw is used to lock the digital telescopic micrometer, and the digital telescopic micrometer is used to detect the outer diameter and roundness of the workpiece.

[0007] Preferably, it also includes a standard block, which is a bar block. The length of the bar block corresponds to the outer diameter of the qualified workpiece. The two ends of the bar block are used to contact and limit with the measuring head of the digital telescopic micrometer and the limit block opposite to the digital telescopic micrometer.

[0008] Preferably, the outer end of the strip-shaped groove on the measuring base is open, and the outer end of the limit stopper extends out of the measuring base.

[0009] Preferably, the opening groove of the transition compression sleeve is located on the side of the transition compression sleeve.

[0010] Preferably, the upper surface of the limit stop is provided with a scale, and the scale cooperates with the corresponding edge of the measuring base to display the position of the limit stop.

[0011] Preferably, the limit stopper is sunk into the strip-shaped groove.

[0012] Preferably, the nut is a square nut, a positioning groove is provided at the bottom of the measuring base, the positioning groove is opposite to the strip groove, and the square nut is circumferentially positioned in the positioning groove.

[0013] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0014] The utility model has the advantages of simple structure, high detection accuracy, adjustable range, fast detection, etc., and can realize batch detection and determination of outer diameter size and roundness without the need for other measuring instruments and conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 Use diagram for standard block 8;

[0018] Figure 4 It is a working schematic diagram of the utility model.

[0019] Attached photos

[0020] In the attached drawings, 1. measuring base, 2. limit block, 3. fixing screw, 4. locking screw, 5. digital telescopic micrometer, 6. square nut, 7. transition clamping sleeve, 8. standard block, 9. workpiece. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 4, an adjustable outer diameter rapid detection device, comprising a rectangular measuring base 1, two adjacent sides of the measuring base 1 are respectively provided with strip grooves in the vertical direction, each strip groove is respectively slidably fitted with a limit stopper 2, a fastening screw 3 is vertically provided on the limit stopper 2, the bottom of the strip groove is provided with a strip hole in the longitudinal direction, the lower end of the fastening screw 3 passes through the strip hole, the strip hole is used for adjusting the position of the fastening screw 3, the lower end of the fastening screw 3 is threaded with a square nut 6, the fastening screw 3 and the square nut 6 lock the position of the limit stopper 2, the limit stopper 2 is sunk into the strip groove, the outer end of the limit stopper 2 is provided with a limit step extending upward, the limit step extends out of the strip groove, and the step surface of the limit step is used to limit the outer circle of the workpiece. The outer end of the strip groove on the measuring base 1 is open, and the outer end of the limit stopper 2 extends out of the measuring base 1 to reduce the volume of the measuring base 1. The upper surface of the limit stopper 2 is provided with a scale, and the scale cooperates with the corresponding edge of the measuring base 1 to display the position of the limit stopper 2.

[0022] A strip boss is parallelly provided on the side of the measuring base 1 opposite to a limit stopper 2, a mounting hole is provided on the strip boss, a transition clamping sleeve 7 is provided in the mounting hole, an opening groove is provided in the longitudinal direction of the transition clamping sleeve 7, the transition clamping sleeve 7 is elastically fitted with the hole wall of the mounting hole, a digital telescopic dial gauge 5 is inserted into the transition clamping sleeve 7, the measuring head of the digital telescopic dial gauge 5 extends out of the mounting hole and is opposite to a limit stopper 2, a locking screw 4 is matched with the vertical thread on the upper side of the strip boss, the end of the locking screw 4 is in contact with the transition clamping sleeve 7, the locking screw 4 is used to lock the digital telescopic dial gauge 5, the opening groove of the transition clamping sleeve 7 is located on the side of the transition clamping sleeve 7, and the locking screw 4 can make the transition clamping sleeve 7 elastically deform. The digital telescopic dial gauge 5 is used to detect the outer diameter and roundness of the workpiece.

[0023] It also includes a standard block 8, which is a bar block, the length of which corresponds to the outer diameter of a qualified workpiece, and the two ends of the bar block are used to contact and limit with the measuring head of the digital telescopic dial gauge 5 and the limit stopper 2 opposite to the digital telescopic dial gauge 5. By adjusting the positions of the two limit stops 2, the outer diameter and roundness of the corresponding workpiece can be quickly detected after calibration with the standard block 8.

[0024] Specifically:

[0025] Place the two limit blocks 2 into the two strip grooves of the measuring base 1 respectively, and adjust the scales of the corresponding values ​​on the surface of the limit blocks 2 to align with the corresponding edges of the measuring base 1 according to the roughly measured outer diameter dimensions, and tighten the limit blocks 2 by tightening the screws 3 and the square nuts 6.

[0026] Place the transition compression sleeve 7 into the corresponding mounting hole of the measuring base 1, and place the opening groove of the transition compression sleeve 7 horizontally. Insert the digital telescopic micrometer 5 into the transition compression sleeve 7, so that the measuring head of the digital telescopic micrometer 5 extends from the other end, and adjust the extension length to about 3mm, and then fix it with the locking screw 4.

[0027] The standard block 8 is placed in the measuring base 1, so that the bottom of the standard block 8 is completely in contact with the large plane of the measuring base 1, the side of the standard block 8 in the length direction is completely in contact with the surface of the limit stopper 2 opposite to the probe of the digital telescopic micrometer 5, and the other side of the standard block 8 is in contact with the digital telescopic micrometer 5. At this time, the digital telescopic micrometer 5 still has a telescopic stroke in the telescopic direction. After the display value of the digital telescopic micrometer 5 is cleared, it can be used to detect the outer diameter 9 of the workpiece. The end face of the workpiece 9 is placed on the plane of the measuring base 1, and the outer circle of the workpiece 9 is close to the two limit stops 2, and the value in the digital telescopic micrometer 5 can be read. The outer diameter value of the workpiece 9 measured by the measuring tool plus the calibration value of the standard block is the actual value of the outer diameter of the workpiece 9. After the outer circle of the workpiece 9 is close to the two limit stops 2, the workpiece is rotated to read the change value in the digital telescopic micrometer 5, and the roundness value of the outer diameter can be obtained. During the detection process, the center of the workpiece always corresponds to the measuring head of the digital display telescopic micrometer 5, and the limit stopper 2 is used to adapt to workpieces with different outer diameters.

[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. An adjustable outer diameter rapid detection device, characterized in that: It comprises a rectangular measuring base, two adjacent sides of the measuring base are respectively provided with strip grooves in the vertical direction, each strip groove is respectively slidably matched with a limit stopper, a fastening screw is vertically provided on the limit stopper, a strip hole is longitudinally provided at the bottom of the strip groove, the lower end of the fastening screw passes through the strip hole, the strip hole is used for adjusting the position of the fastening screw, the lower end thread of the fastening screw is matched with a nut, the fastening screw and the nut lock the position of the limit stopper, the outer end of the limit stopper is provided with a limit step extending upward, the step surface of the limit step is used for limiting the outer circle of the workpiece; A strip boss is provided parallel to the side of the measuring base opposite to a limit block, a mounting hole is provided on the strip boss, a transition clamping sleeve is provided in the mounting hole, an opening groove is provided in the longitudinal direction, the transition clamping sleeve is elastically fitted with the hole wall of the mounting hole for positioning, a digital telescopic micrometer is inserted into the transition clamping sleeve, a measuring head of the digital telescopic micrometer extends out of the mounting hole and is opposite to a limit block, a locking screw is provided on the vertical thread along the upper edge of the strip boss, an end of the locking screw is in contact with the transition clamping sleeve, the locking screw is used to lock the digital telescopic micrometer, and the digital telescopic micrometer is used to detect the outer diameter and roundness of the workpiece.

2. The adjustable outer diameter rapid detection device according to claim 1, characterized in that: It also includes a standard block, which is a strip block. The length of the strip block corresponds to the outer diameter of the qualified workpiece. The two ends of the strip block are used to contact and limit with the measuring head of the digital telescopic micrometer and the limit block opposite to the digital telescopic micrometer.

3. The adjustable outer diameter rapid detection device according to claim 1, characterized in that: The outer end of the strip groove on the measuring base is open, and the outer end of the limit stopper extends out of the measuring base.

4. The adjustable outer diameter rapid detection device according to claim 1, characterized in that: The opening groove of the transition compression sleeve is located on the side of the transition compression sleeve.

5. The adjustable outer diameter rapid detection device according to claim 1, characterized in that: The upper surface of the limit stopper is provided with a scale, and the scale cooperates with the corresponding edge of the measuring base to display the position of the limit stopper.

6. The adjustable outer diameter rapid detection device according to claim 1, characterized in that: The limit stopper sinks into the strip groove.

7. The adjustable outer diameter rapid detection device according to claim 1, characterized in that: The nut is a square nut. A positioning groove is provided at the bottom of the measuring base. The positioning groove is opposite to the strip groove. The square nut is circumferentially positioned in the positioning groove.

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