Device and method for rapidly detecting thickness of special boss mounting seat

Abstract

The invention discloses a device and a method for rapidly detecting the thickness of a special boss mounting seat. The device comprises a supporting column, a detection rod, an outer sleeve body, a spring, a detection main body, a dial indicator, an indicator frame and an indicator alignment block. The detection rod, the outer sleeve and the spring are assembled on one side of the detection body, the dial indicator is assembled on the other side of the detection body, the supporting column is installed on the back face of the boss installation base to form a detection datum plane, and the dial indicator is placed in the front face of the boss installation base through the detection rod to conduct boss thickness detection. According to the invention, zero setting processing of the dial indicator is realized through the indicator block, and whether the thickness value is qualified or not is rapidly judged by observing whether the pointer deflection amount of the dial indicator is within the thickness tolerance range of the boss mounting seat or not. The detection method is high in efficiency, can quickly judge whether the thickness of the boss mounting base is qualified or not, is suitable for the detection process of a large number of boss mounting bases, and effectively improves the machining efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical processing, and in particular to a device and a method for quickly detecting the thickness of a boss. Background Art

[0002] Round to square parts (see Figure 1 ) is the most important part of the vector components in aircraft engines. It plays an important role in connecting the circle segment and the binary vector structure. There are many boss mounting seats on this part for installing the heat shield. If ordinary measurement methods are used, the measurement will be limited by space and the interference of measuring tools, which will lead to complicated measurement process and long detection time, which will eventually affect the processing efficiency of the parts. Summary of the invention

[0003] The present invention aims to provide a device and method for quickly detecting the thickness of a special boss mounting seat, so as to improve the detection efficiency and processing efficiency of parts during the processing.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A device for quickly detecting the thickness of a special boss mounting seat, wherein the boss mounting seat is provided with a stepped through hole, the device comprising:

[0006] A support column, wherein one end of the support column has a protrusion with a flat end surface, and the outer diameter of the protrusion is between the maximum aperture and the minimum aperture of the stepped through hole on the boss mounting seat;

[0007] A detection rod, wherein the detection rod is a stepped shaft, and the outer diameter of the shaft section at the left end and the right end of the detection rod is smaller than the outer diameter of the shaft section at other parts;

[0008] An outer sleeve body, wherein a first stepped hole extending axially therethrough is formed on the outer sleeve body, a portion of the detection rod is inserted into the first stepped hole, and a maximum aperture of the first stepped hole is equal to a maximum axial cross-sectional outer diameter of the detection rod;

[0009] A spring, the spring is placed in the first stepped hole of the outer sleeve body and sleeved on the outside of the detection rod;

[0010] A detection body, wherein a second stepped hole extending axially therethrough is formed on the detection body, and at least a portion of the outer sleeve, the detection rod and the spring are located in the second stepped hole;

[0011] A dial indicator, a measuring rod of the dial indicator is inserted into the second stepped hole.

[0012] As an option, the device for quickly detecting the thickness of the special boss mounting seat further comprises a meter frame, wherein the meter frame is connected to the outer surface of the detection body, and a dial indicator is detachably connected to the meter frame.

[0013] As an option, the device for quickly detecting the thickness of a special boss mounting seat also includes a table block, which includes at least one plane surface and a groove on the plane surface, and the depth of the groove is equal to the thickness of the boss mounting seat.

[0014] A method for quickly detecting the thickness of a special boss mounting seat adopts the aforementioned device with a gauge block and comprises:

[0015] Step 1: Assemble the detection body, the detection rod, the outer sleeve body and the spring to form a detection unit. First, sleeve the spring on the left end of the detection rod, then insert the right end of the detection rod into the first stepped hole of the outer sleeve body until the right end passes through the outer sleeve body, then insert the left end of the detection rod and the spring from the first end face of the detection body into the second stepped hole of the detection body, and finally insert the measuring rod of the dial indicator from the second end face of the detection body into the second stepped hole of the detection body, and confirm that the measuring rod of the dial indicator contacts the left end of the detection rod;

[0016] Step 2: Zero the detection unit assembled in step 1 and the counter block, specifically, make the end face of the outer sleeve body close to the plane surface of the counter block, press the dial indicator to drive the right end of the detection rod to insert into the groove of the counter block until the right end of the detection rod contacts the bottom surface of the groove, then adjust the pointer of the dial indicator to the zero scale and take out the detection unit;

[0017] Step 3: insert the protrusion of the support column into the stepped through hole of the boss mounting seat from the back side of the boss mounting seat until the end face of the protrusion is pressed tightly against the step surface of the stepped through hole corresponding to the thickness to be measured of the boss mounting seat;

[0018] Step 4. Place the end face of the outer sleeve of the detection unit that has completed the zeroing process in step 3 tightly against the end face of the front face of the boss mounting seat, press the dial indicator to ensure that the right end of the detection rod contacts the raised end face of the support column, and observe the pointer reading of the dial indicator. If the pointer reading is within the tolerance range of the theoretical thickness of the boss mounting seat, the thickness of the boss mounting seat is qualified. If it exceeds the tolerance range, it is unqualified.

[0019] Furthermore, the above-mentioned method for quickly detecting the thickness of a special boss mounting seat also includes step five, removing the detection unit and the support column from the front and back of the special boss mounting seat respectively, transferring them to the next boss mounting seat, and repeating step four until the measurement of the thickness of all boss mounting seats is completed.

[0020] A method for quickly detecting the thickness of a special boss mounting seat adopts the aforementioned device without a counter block and comprises:

[0021] Step 1: Assemble the detection body, the detection rod, the outer sleeve body and the spring to form a detection unit. First, sleeve the spring on the left end of the detection rod, then insert the right end of the detection rod into the first stepped hole of the outer sleeve body until the right end passes through the outer sleeve body, then insert the left end of the detection rod and the spring from the first end face of the detection body into the second stepped hole of the detection body, and finally insert the measuring rod of the dial indicator from the second end face of the detection body into the second stepped hole of the detection body, and confirm that the measuring rod of the dial indicator contacts the left end of the detection rod;

[0022] Step 2: insert the protrusion of the support column into the stepped through hole of the boss mounting seat from the back side of the boss mounting seat until the end face of the protrusion is pressed tightly against the step surface of the stepped through hole corresponding to the thickness to be measured of the boss mounting seat;

[0023] Step three, place the end face of the outer sleeve of the detection unit tightly against the end face of the front of the boss mounting seat, press the dial indicator to ensure that the right end of the detection rod contacts the raised end face of the supporting column, and observe the pointer reading of the dial indicator. If the pointer reading is within the theoretical thickness range of the boss mounting seat, the thickness of the boss mounting seat is qualified. If it exceeds the theoretical thickness range, it is unqualified.

[0024] Furthermore, the above-mentioned method for quickly detecting the thickness of a special boss mounting seat also includes step four, removing the detection unit and the support column from the front and back of the special boss mounting seat respectively, transferring them to the next boss mounting seat, and repeating step three until the measurement of the thickness of all boss mounting seats is completed.

[0025] Compared with the prior art, the thickness detection method and device of the present invention have the following characteristics:

[0026] 1. The present invention can be used for similar part boss thickness detection, which is more efficient than traditional detection methods, thereby improving subsequent part processing efficiency.

[0027] 2. The present invention can not only directly read the thickness value of the boss, but also quickly determine whether the thickness of the boss is qualified through the thickness tolerance of the boss, thus providing a wider range of choices. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the structural diagram of the round-to-square parts;

[0029] Figure 2 is a structural diagram of the detection device;

[0030] In the figure: 1. supporting column; 2. parts; 3. detection rod; 4. outer sleeve; 5. spring; 6. detection body; 7. dial indicator; 8. meter stand; 9. pair of meter blocks. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with specific embodiments, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to common technical knowledge and customary means in the field are included in the scope of the present invention.

[0032] In this embodiment, a device for quickly detecting the thickness of a special boss mounting seat is designed, comprising a support column 1, a detection rod 3, an outer sleeve body 4, a spring 5, a detection body 6, a dial indicator 7, a meter stand 8 and a meter block 9. Figure 2 The device is used to quickly detect the thickness L of the special boss mounting seat, wherein the support column 1 limits the position of the detection rod 3 to determine the detection reference. The functions and characteristics of each component are as follows:

[0033] One end of the support column 1 has a protrusion with a flat end surface, and the outer diameter of the protrusion is between the maximum aperture and the minimum aperture of the stepped through hole on the boss mounting seat;

[0034] The detection rod 3 is a stepped shaft with four sections of different outer diameters, such as Figure 2 , the outer diameters of the first three shaft sections gradually increase from left to right, and then the outer diameter of the fourth shaft section decreases;

[0035] The outer sleeve body 4 is provided with a first stepped hole axially penetrating therethrough. The first stepped through hole includes two inner holes with different apertures. A portion of the detection rod 3 is inserted into the first stepped hole. The maximum aperture of the first stepped hole is equal to the maximum axial cross-section outer diameter of the detection rod 3. The two are clearance-fitted.

[0036] The spring 5 is placed in the first stepped hole of the outer sleeve body 4 and sleeved on the outside of the detection rod 3;

[0037] The detection body 6 is provided with a second stepped hole axially penetrating therethrough, and the second stepped hole includes four inner holes with different apertures, such as Figure 2 , wherein the inner hole on the right side has the largest aperture, and at least a portion of the outer sleeve body 4, the detection rod 3 and the spring 5 are located in the inner hole with the largest aperture in the second stepped hole;

[0038] The measuring rod of the dial indicator 7 is inserted into the leftmost inner hole of the second stepped hole.

[0039] The device is assembled as follows: Figure 2 , put the spring 5 on the left end stepped shaft of the detection rod 3, install the detection rod 3 from the first stepped hole on the left side of the outer sleeve body 4, screw the outer sleeve body 4 into the second stepped hole of the detection body 6 from the right side of the detection body 6, until the left end surface of the outer sleeve body 4 is in contact with the bottom surface of the countersunk hole (part of the second stepped hole) of the detection body 6, connect the meter frame 8 to the detection body 6 by welding, install the dial indicator 7 into the meter frame 8, and press the measuring rod of the dial indicator 7 against the left end surface of the detection rod 3.

[0040] The detection principle of the present invention is: Figure 2 As shown, L is the theoretical thickness of the boss mounting seat on part 2, and the depth of the gauge block 9 is the theoretical thickness L of the boss mounting seat. After the theoretical value L of part 2 is determined by the gauge block 9, the pointer of the dial indicator 7 is moved to the zero scale to complete the zeroing process. After the dial indicator 7 determines the theoretical thickness, the raised surface of the left end of the support column 1 is attached to the bottom surface of the back of the stepped through hole of the step mounting seat of part 2, the right end surface of the detection rod 3 is pressed tightly against the raised surface of the left end of the support column 1, and the right end surface of the outer sleeve body 4 is pressed against the left end surface of part 2 (on the end surface of the boss mounting seat of part 2). The displacement of the detection rod 3 when it moves to the left or right is converted into the offset value of the pointer of the dial indicator 7. The offset value of the pointer is used to determine whether the thickness of the boss mounting seat on part 2 is within the tolerance, thereby judging whether the thickness L of the boss mounting seat of part 2 is qualified.

[0041] The method for quickly detecting the thickness of special boss mounting seats is as follows:

[0042] (1) Sleeve the spring 5 onto the stepped shaft at the left end of the detection rod 3, install the detection rod 3 from the first stepped hole on the left side of the outer sleeve body 4, screw the outer sleeve body 4 into the second stepped hole of the detection body 6 until the left end surface of the outer sleeve body 4 fits with the bottom surface of an inner hole in the second stepped hole of the detection body 6, connect the meter frame 8 to the detection body 6 by welding, install the dial indicator 7 into the meter frame 8, and press the measuring rod of the dial indicator 7 against the left end surface of the detection rod 3.

[0043] (2) Use the device and the alignment block 9 to determine the theoretical thickness L of the boss mounting seat. Place the left end face of the detection rod 3 against the bottom surface of the groove of the alignment block 9, place the right end face of the outer sleeve body 4 against the upper end face M of the alignment block 9, and move the pointer of the dial indicator 7 to the zero scale.

[0044] (3) Attach the left end face of the support column 1 to the bottom face of the stepped through hole of the boss mounting seat of part 2 (i.e. Figure 2 The right end face of the detection rod 3 of the device is pressed tightly against the left end face of the supporting column 1, and the right end face of the outer sleeve body 4 is pressed against the left end face of the part 2 (the end face of the boss mounting seat of the part 2, that is, Figure 2 The left end face of the middle thickness L), by observing the pointer value on the dial indicator 7, the offset value of the pointer is used to determine whether the boss mounting seat thickness of part 2 is within the tolerance. At this time, there is no need to measure the actual thickness value. It is only necessary to determine whether the boss mounting seat thickness of part 2 is qualified by whether the pointer deflection value falls within the tolerance range of the thickness L.

[0045] (4) After measuring the thickness of one boss mounting seat, repeat step (3) to complete the thickness detection of the remaining boss mounting seats.

[0046] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in the field. Although the illustrative specific embodiments of the present invention are described above to facilitate the understanding of the present invention by the technical personnel in the field, it should be clear that the present invention is not limited to the scope of the specific embodiments. For ordinary technicians in the field of this technology, as long as various changes are within the spirit and scope of the present invention defined and determined by the attached claims, these changes are obvious, and all inventions and creations using the concept of the present invention are protected.

Claims

1. A device for quickly detecting the thickness of a special boss mounting seat, wherein the boss mounting seat has a stepped through hole, characterized in that: The device includes: A support column (1), wherein one end of the support column (1) has a protrusion with a flat end surface, and the outer diameter of the protrusion is between the maximum aperture and the minimum aperture of the stepped through hole on the boss mounting seat; A detection rod (3), wherein the detection rod (3) is a stepped shaft, and the outer diameter of the shaft section at the left end and the right end of the detection rod (3) is smaller than the outer diameter of the shaft section at other parts; An outer sleeve body (4), wherein a first stepped hole extending axially therethrough is formed on the outer sleeve body (4), a portion of the detection rod (3) is inserted into the first stepped hole, and a maximum aperture of the first stepped hole is equal to a maximum axial cross-sectional outer diameter of the detection rod (3); A spring (5), wherein the spring (5) is placed in the first stepped hole of the outer sleeve body (4) and sleeved on the outside of the detection rod (3); A detection body (6), wherein a second stepped hole is formed on the detection body (6) and runs axially therethrough, and at least a portion of the outer sleeve (4), the detection rod (3) and the spring (5) are located in the second stepped hole; A dial gauge (7), wherein the measuring rod of the dial gauge (7) is inserted into the second stepped hole.

2. The device for quickly detecting the thickness of a special boss mounting seat according to claim 1, characterized in that: It also comprises a meter frame (8), which is connected to the outer surface of the detection body (6), and a dial indicator (7) is detachably connected to the meter frame (8).

3. The device for quickly detecting the thickness of a special boss mounting seat according to claim 1, characterized in that: It also comprises a watch alignment block (9), which comprises at least one plane surface and a groove on the plane surface, wherein the depth of the groove is equal to the thickness of the boss mounting seat.

4. A method for quickly detecting the thickness of a special boss mounting seat, characterized in that: The device according to claim 3 is used, and comprises: Step 1, assemble the detection body (6), the detection rod (3), the outer sleeve body (4) and the spring (5) to form a detection unit, firstly sleeve the spring (5) on the left end of the detection rod (3), then insert the right end of the detection rod (3) into the first stepped hole of the outer sleeve body (4) until the right end passes through the outer sleeve body (4), then insert the left end of the detection rod (3) and the spring (5) from the first end face of the detection body (6) into the second stepped hole of the detection body (6), finally insert the measuring rod of the dial indicator (7) from the second end face of the detection body (6) into the second stepped hole of the detection body (6), and confirm that the measuring rod of the dial indicator (7) contacts the left end of the detection rod (3); Step 2: Zero the detection unit assembled in step 1 and the counter block (9), specifically, the end surface of the outer sleeve (4) is tightly attached to the plane surface of the counter block (9), the dial indicator (7) is pressed to drive the right end of the detection rod (3) to be inserted into the groove of the counter block (9) until the right end of the detection rod (3) contacts the bottom surface of the groove, at this time, the pointer of the dial indicator (7) is adjusted to the zero scale, and the detection unit is taken out; Step 3: insert the protrusion of the support column (1) into the stepped through hole of the boss mounting seat from the back side of the boss mounting seat until the end face of the protrusion is pressed tightly against the step surface of the stepped through hole of the boss mounting seat corresponding to the thickness to be measured; Step 4: Place the end face of the outer sleeve body (4) of the detection unit that has completed the zeroing process in step 3 tightly against the end face of the front face of the boss mounting seat, press the dial indicator (7) to ensure that the right end of the detection rod (3) contacts the raised end face of the support column (1), and observe the pointer reading of the dial indicator (7). If the pointer reading is within the tolerance range of the theoretical thickness of the boss mounting seat, the thickness of the boss mounting seat is qualified. If it exceeds the tolerance range, it is unqualified.

5. The method for quickly detecting the thickness of a special boss mounting seat according to claim 4, characterized in that: The method further comprises step 5 of removing the detection unit and the support column (1) from the front and back of the boss mounting seat respectively, transferring them to the next boss mounting seat, and repeating step 4 until the thickness measurement of all boss mounting seats is completed.

6. A method for quickly detecting the thickness of a special boss mounting seat, characterized in that: The device according to claim 1 comprises: Step 1, assemble the detection body (6), the detection rod (3), the outer sleeve body (4) and the spring (5) to form a detection unit, firstly sleeve the spring (5) on the left end of the detection rod (3), then insert the right end of the detection rod (3) into the first stepped hole of the outer sleeve body (4) until the right end passes through the outer sleeve body (4), then insert the left end of the detection rod (3) and the spring (5) from the first end face of the detection body (6) into the second stepped hole of the detection body (6), finally insert the measuring rod of the dial indicator (7) from the second end face of the detection body (6) into the second stepped hole of the detection body (6), and confirm that the measuring rod of the dial indicator (7) contacts the left end of the detection rod (3); Step 2: insert the protrusion of the support column (1) into the stepped through hole of the boss mounting seat from the back side of the boss mounting seat until the end face of the protrusion is pressed tightly against the step surface of the stepped through hole of the boss mounting seat corresponding to the thickness to be measured; Step three, place the end face of the outer sleeve body (4) of the detection unit tightly against the end face of the front face of the boss mounting seat, press the dial indicator (7), ensure that the right end of the detection rod (3) contacts the raised end face of the support column (1), and observe the pointer reading of the dial indicator (7). If the pointer reading is within the theoretical thickness range of the boss mounting seat, the thickness of the boss mounting seat is qualified. If it exceeds the theoretical thickness range, it is unqualified.

7. A method for quickly detecting the thickness of a special boss mounting seat according to claim 6, characterized in that: The method further comprises step 4 of removing the detection unit and the support column (1) from the front and back of the boss mounting seat respectively, transferring them to the next boss mounting seat, and repeating step 3 until the thickness measurement of all boss mounting seats is completed.

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