An assisted measurement method

Abstract

The application belongs to the technical field of machining, and provides an auxiliary measurement method, and the detection method is based on an auxiliary measurement device, the auxiliary measurement device comprises a measurement claw, a guide sleeve and a mandrel; the measurement claw comprises a measurement end, a clamping groove block and an extension rod, the measurement claw is L-shaped in shape, the measurement end is provided with the clamping groove block around, and the measurement end is provided with the extension rod on one side end face; and the mandrel is located in a positioning shaft mounting hole of a swing chamber body. The measurement method adjusts the distance between the combined annular groove and the swing chamber body positioning shaft hole to a straight line by using the measurement claw and the mandrel, so that the value can be obtained only once by measurement, and the measurement time is greatly shortened; secondly, the measurement claw is supported by using the guide sleeve in the measurement method, and manual support of the measurement claw is not needed during measurement, and the measurement efficiency of the measurement method is further improved.

Description

Technical Field

[0001] This invention belongs to the field of machining technology, and in particular relates to an auxiliary measurement method. Background Technology

[0002] The housing is a key component of the automatic mechanism of a small-caliber equipment. The front end of the housing has a combined annular groove machined in the through hole for mounting the barrel; the rear end has a breechblock slot with upper and lower positioning shaft holes for mounting the breechblock; the tail end of the barrel has a concave spherical surface, and the front end of the breechblock has a convex spherical surface. During firing, to ensure that the breechblock rotates flexibly and without jamming, the gap between the breechblock and the barrel spherical surface should be within the range of (0.05~0.1) mm. Therefore, it is necessary to precisely control the positional relationship between the combined annular groove for barrel mounting and the breechblock positioning shaft hole to indirectly ensure the gap between the convex and concave spherical surfaces.

[0003] However, the current method for measuring the distance between the annular groove of the housing assembly and the mounting hole of the swivel bearing positioning shaft is to fix the housing on the machine tool and then use a lever dial indicator to pick up the coordinate points of one side of the annular groove of the housing assembly and the center point of the mounting hole of the swivel bearing positioning shaft on the machine tool's scale. The distance between the two is then calculated by calculating the difference between the coordinate points. This method can only be performed on the machine tool and cannot be performed outside the machine tool. Moreover, the measurement process is cumbersome and time-consuming, which seriously affects the production efficiency of the housing. Summary of the Invention

[0004] This invention provides an auxiliary measurement method, which aims to solve the problem mentioned in the background art that the existing measurement process is cumbersome and time-consuming, seriously affecting the production efficiency of cumbersome boxes.

[0005] The present invention is implemented as follows: an auxiliary measurement method, the detection method being based on an auxiliary measurement device, the auxiliary measurement device comprising a measuring jaw and a mandrel;

[0006] The measuring claw includes a measuring end, a slot block, and an extension rod. The measuring claw is L-shaped. The slot block is provided around the measuring end, and the extension rod is provided on one side of the measuring end.

[0007] The mandrel is located in the mounting hole of the locating shaft of the swing body;

[0008] The measurement method steps are as follows:

[0009] S1. The measuring claw extends horizontally into the mounting hole of the body tube from the left side, moves to the right to the vicinity of the combined annular groove, and then moves upward so that the end face of the slot block away from the extension rod is in contact with the inner side of the combined annular groove.

[0010] S2. Insert the mandrel into the mounting hole of the locating shaft of the rocker body;

[0011] S3. Use an inside dial indicator to measure the distance L1 between the end face of the extension rod near the mandrel and the outer circular surface of the mandrel.

[0012] S4. Add L2, L3, and L1 of the end face of the slot block away from the extension rod to the end face of the extension rod near the spindle to obtain the distance L between the combined annular groove and the mounting hole of the swing body positioning shaft.

[0013] S5. Repeating the process from S1 to S4 will yield the distance L between the mounting holes of the positioning shaft of each combination of annular grooves.

[0014] Optionally, the thickness of the slot block is less than the width of the combined annular groove.

[0015] Optionally, the mandrel and the mounting hole of the locating shaft of the rocker body are fitted with a transition fit.

[0016] Optionally, the auxiliary measuring device may also include a guide sleeve.

[0017] Optionally, the guide sleeve is movably connected to the periphery of the extension rod.

[0018] Optionally, the guide sleeve is a hollow annular structure, the inner diameter of the guide sleeve matches the outer diameter of the extension rod, and the outer diameter of the guide sleeve matches the inner diameter of the body tube mounting hole.

[0019] Optionally, the guide sleeve may be made of a soft material with a certain degree of hardness.

[0020] Optionally, after adding the guide sleeve, step S6 is added after step S1 of the measurement method;

[0021] S6. Extend the guide sleeve horizontally from the slot in the rocker body into the barrel mounting hole. The outer ring of the guide sleeve mates with the barrel mounting hole, and the inner ring mates with the outer surface of the extension rod, maintaining the state of the measuring jaws after S1.

[0022] The beneficial technical effects of implementing this invention are as follows: First, by using this measurement method, the distance between the combined annular groove and the positioning shaft hole of the swing body is adjusted to a straight line using the measuring claw and the mandrel, so that the value that originally required several measurements can now be obtained with only one measurement, greatly shortening the measurement time; Second, by using the guide sleeve to support the measuring claw in this measurement method, there is no need to manually support the measuring claw during measurement, further improving the measurement efficiency of this measurement method. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the installation of the auxiliary measuring device proposed in this invention;

[0024] Figure 2for Figure 1 Schematic diagrams of the front and side views of the measuring jaw;

[0025] Figure 3 for Figure 1 Cross-sectional view of a certain box;

[0026] Figure 4 This is a schematic diagram of the measurement methods L1, L2, L3, and L proposed in this invention;

[0027] In the figure: 1. Measuring claw; 101. Measuring end; 102. Slot block; 103. Extension rod; 2. Guide sleeve; 3. Mandrel; 4. A certain box; 401. Body tube mounting hole; 402. Combined annular groove; 403. Swing body empty groove; 404. Swing body positioning shaft mounting hole. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0030] like Figures 1 to 4 As shown, the present invention provides an auxiliary measurement method. The detection method is based on an auxiliary measurement device, which includes a measuring jaw 1 and a mandrel 3.

[0031] The measuring claw 1 includes a measuring end 101, a slot block 102, and an extension rod 103. The measuring claw 1 is L-shaped. The measuring end 101 is surrounded by a slot block 102, and an extension rod 103 is provided on one end face of the measuring end 101.

[0032] The spindle 3 is located in the mounting hole 404 of the locating shaft of the rocker body;

[0033] The measurement method steps are as follows:

[0034] S1. The measuring claw 1 extends horizontally into the body tube mounting hole 401 from the left side, moves to the right to the vicinity of the combined annular groove 402, and then moves upward so that the end face of the slot block 102 away from the extension rod 103 fits against the inner side of the combined annular groove 402.

[0035] S2. Insert the mandrel 3 into the mounting hole 404 of the locating shaft of the rocker body;

[0036] S3. Use an inside dial indicator to measure the distance L1 between the end face of the extension rod 103 near the mandrel 3 and the outer circular surface of the mandrel 3.

[0037] S4. Add L2 to the end face of the slot block 102 away from the extension rod 103, L3 to the end face of the extension rod 103 near the spindle 3, L3 to the radius length of the spindle 3, and L1 to obtain the distance L between the combined annular groove 402 and the mounting hole 404 of the swing body positioning shaft.

[0038] S5. Repeating the process from S1 to S4 will yield the distance L between each combination of annular groove 402 and the mounting hole 404 of the locating shaft of the rocker body.

[0039] Furthermore, the thickness of the card slot block 102 is less than the width of the combined annular groove 402.

[0040] The thickness of the slot block 102 is less than the width of the combined annular groove 402, which makes it easier for the user to place the slot block 102 in the combined annular groove 402. This also makes it easier for the user to connect the slot block 102 with the inner wall of the combined annular groove 402 that needs to be measured during use, so as to facilitate subsequent measurements.

[0041] Furthermore, the fit between the spindle 3 and the mounting hole 404 of the locating shaft of the rocker body is a transition fit.

[0042] The mandrel 3 is fitted with an intermediate fit before the mounting hole 404 of the locating shaft of the swivel body. This helps to prevent the mandrel 3 from shaking in the mounting hole 404 of the locating shaft of the swivel body, prevents errors when measuring the distance between the extension rod 103 and the outer surface of the mandrel 3, and improves the accuracy of the final measurement value.

[0043] Furthermore, the auxiliary measuring device also includes a guide sleeve 2.

[0044] The guide sleeve 2 is used to fix the measuring claw 1 in contact with the inner wall of the combined annular groove 402 to be measured, so as to prevent the measuring claw 1 from loosening and causing errors in the final measurement value.

[0045] Furthermore, the guide sleeve 2 is movably connected to the periphery of the extension rod 103.

[0046] The guide sleeve 2 is movably connected to the periphery of the extension rod 103, which facilitates better fixation of the measuring claw 1 by the guide sleeve 2.

[0047] Furthermore, the guide sleeve 2 is a hollow ring structure, the inner diameter of the guide sleeve 2 matches the outer diameter of the extension rod 103, and the outer diameter of the guide sleeve 2 matches the inner diameter of the body tube mounting hole 401.

[0048] The inner diameter of the guide sleeve 2 matches the outer diameter of the extension rod 103, and the outer diameter of the guide sleeve 2 matches the inner diameter of the mounting hole 401 of the body tube, which facilitates the disassembly of the guide sleeve 2 and further improves the efficiency of measurement.

[0049] Furthermore, the guide sleeve 2 is made of a soft material with a certain degree of hardness.

[0050] The guide sleeve 2 can be made of soft materials such as rubber or plastic to prevent damage to the inner wall of the tube mounting hole 401 when fixing the guide sleeve 2.

[0051] Preferably, the guide sleeve 2 used in this invention is made of rubber.

[0052] Furthermore, after adding guide sleeve 2, step S6 is added after step S1 in the measurement method;

[0053] S6. Extend the guide sleeve 2 horizontally from the breech body slot 403 into the barrel mounting hole 401. The outer ring of the guide sleeve 2 mates with the barrel mounting hole 401, and the inner ring mates with the outer surface of the extension rod 103, maintaining the state of the measuring claw 1 after S1.

[0054] With the addition of guide sleeve 2, staff no longer need to lift the measuring claw 1 by hand during use, making it easier for staff to carry out subsequent measurement operations.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary measurement method, characterized in that, The measurement method is based on an auxiliary measuring device, which includes a measuring jaw (1) and a mandrel (3). The measuring claw (1) includes a measuring end (101), a slot block (102) and an extension rod (103). The measuring claw (1) is L-shaped. The slot block (102) is provided around the measuring end (101), and the extension rod (103) is provided on one side of the measuring end (101). The spindle (3) is located in the mounting hole (404) of the oscillating body positioning shaft; The measurement method steps are as follows: S1. The measuring claw (1) extends horizontally into the body tube mounting hole (401) from the left side, moves to the right to the vicinity of the combined annular groove (402) and then moves upward, so that the end face of the slot block (102) away from the extension rod (103) fits against the inner side of the combined annular groove (402); S2. Insert the mandrel (3) into the mounting hole (404) of the locating shaft of the rocker body; S3. Use an inside dial indicator to measure the distance L1 between the end face of the extension rod (103) near the mandrel (3) and the outer circle of the mandrel (3); S4. Add the end face of the slot block (102) away from the extension rod (103) to the end face of the extension rod (103) near the spindle (3) L2, the radius length of the spindle (3) L3 and L1 to obtain the distance L between the combined annular groove (402) and the mounting hole (404) of the swing body positioning shaft; S5. Repeating the process from S1 to S4 will yield the distance L between each combined annular groove (402) and the mounting hole (404) of the locating shaft of the rocker body.

2. The auxiliary measurement method according to claim 1, characterized in that, The thickness of the slot block (102) is less than the width of the combined annular groove (402).

3. The auxiliary measurement method according to claim 2, characterized in that, The mandrel (3) and the mounting hole (404) of the oscillating body positioning shaft are in a transition fit.

4. The auxiliary measurement method according to claim 1, characterized in that, The auxiliary measuring device also includes a guide sleeve (2).

5. The auxiliary measurement method according to claim 4, characterized in that, The guide sleeve (2) is movably connected to the periphery of the extension rod (103).

6. The auxiliary measurement method according to claim 5, characterized in that, The guide sleeve (2) is a hollow ring structure. The inner diameter of the guide sleeve (2) matches the outer diameter of the extension rod (103), and the outer diameter of the guide sleeve (2) matches the inner diameter of the body tube mounting hole (401).

7. The auxiliary measurement method according to claim 6, characterized in that, The guide sleeve (2) is made of a soft material with a certain hardness.

8. The auxiliary measurement method according to claim 7, characterized in that, After the guide sleeve (2) is added, step S6 is added after step S1 of the measurement method; S6. Insert the guide sleeve (2) horizontally from the swing body slot (403) into the body tube mounting hole (401). The outer ring of the guide sleeve (2) is engaged with the body tube mounting hole (401), and the inner ring is engaged with the outer circle of the extension rod (103) to maintain the state of the measuring claw (1) after S1.

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