Shallow seam allowance machining precision measuring device

Abstract

The utility model discloses a shallow seam allowance processing precision measuring device which comprises an L-shaped main body frame, a dial indicator is arranged on the vertical section of the L-shaped main body frame, and a measuring mechanism is arranged on the horizontal section of the L-shaped main body frame. The measuring mechanism comprises a fixed measuring piece and a movable measuring piece; and a springback assembly is arranged between the fixed measuring piece and the vertical section of the L-shaped main body frame. According to the utility model, the fixed measuring rod and the movable measuring rod can be in direct contact with the inside of the spigot, and the fixed measuring rod rotates around the rivet and is convenient to adjust, so that the dial indicator can accurately read the deviation size, and the actual size of the shallow spigot is obtained by combining the actual design size; the problem that the precision of the shallow seam allowance is insufficient due to poor adaptability of a measuring tool is solved, indirect measuring errors in a traditional measuring method are avoided, the defects of an existing tool are effectively overcome, and the machining precision and efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the field of coal mining machine parts manufacturing technology, and in particular relates to a shallow stop machining accuracy measuring device. Background Technology

[0002] In the production of coal mining machine parts, especially for key components such as gears and idler gears, the dimensional accuracy of the shallow stop at the connection directly affects the assembly quality and the operating performance of the equipment. Due to the shallow depth of the stop, existing measuring tools such as inside diameter gauges cannot directly contact the inside of the stop to accurately measure the length of the shallow (5-10mm) stop, resulting in inaccurate measurement results, difficulty in controlling the precision of parts, and easy deviations during assembly, affecting the overall performance of the equipment. If operators use indirect measurement methods, there will be a large error, especially under high-precision requirements, as accurate measurement is difficult due to the shallow stop depth. Utility Model Content

[0003] The technical problem this invention aims to solve is to address the shortcomings of the existing technology by providing a shallow stop machining accuracy measuring device. This device utilizes a fixed measuring rod and a movable measuring rod to directly contact the inside of the stop. The fixed measuring rod rotates around the rivet, facilitating adjustment and allowing the dial indicator to accurately read the deviation dimension. Combined with the actual design dimensions, the actual dimension of the shallow stop is obtained. This overcomes the problem of insufficient accuracy in shallow stops due to poor adaptability of measuring tools, avoids indirect measurement errors in traditional measurement methods, effectively solves the shortcomings of existing tools, shortens machining auxiliary time, and improves machining accuracy and efficiency.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a shallow stop machining accuracy measuring device, including an L-shaped main frame, a dial indicator is provided on the vertical section of the L-shaped main frame, and a measuring mechanism that cooperates with the dial indicator is provided on the horizontal section of the L-shaped main frame;

[0005] The dial indicator is connected to the vertical section of the L-shaped main frame by fastening bolts. The probe of the dial indicator extends through the vertical section of the L-shaped main frame to above the horizontal section of the L-shaped main frame. The measuring rod of the dial indicator is parallel to the horizontal section of the L-shaped main frame.

[0006] The measuring mechanism includes a fixed measuring component that passes through the horizontal section of the L-shaped main frame and is arranged near the dial indicator, and a movable measuring component that passes through the horizontal section of the L-shaped main frame and can move along the length of the horizontal section of the L-shaped main frame; a spring-loaded assembly is provided between the fixed measuring component and the vertical section of the L-shaped main frame.

[0007] The fixed measuring component includes a fixed measuring head disposed on the horizontal section of the L-shaped main frame and a fixed measuring rod disposed vertically at the bottom of the fixed measuring head, the fixed measuring head and the fixed measuring rod being integrally formed; the fixed measuring head is connected to the horizontal section of the L-shaped main frame by rivets, and the bottom of the fixed measuring rod is provided with a measuring end; the spring-loaded assembly is disposed between the fixed measuring head and the bottom of the vertical section of the L-shaped main frame;

[0008] The movable measuring component includes a movable measuring head disposed on the horizontal section of the L-shaped main frame and a movable measuring rod disposed vertically at the bottom of the movable measuring head. The movable measuring head and the movable measuring rod are integrally formed. The movable measuring head can move along the length direction of the horizontal section of the L-shaped main frame, and the bottom of the movable measuring rod is provided with a measuring end.

[0009] Furthermore, a sliding groove is provided on the horizontal section of the L-shaped main frame. The sliding groove is arranged along the length direction of the horizontal section of the L-shaped main frame, and both the fixed measuring component and the movable measuring component are arranged in the sliding groove.

[0010] Furthermore, the fixed measuring head is installed in the slide groove; the movable measuring head is slidably disposed in the slide groove, and the movable measuring head is provided with a locking screw.

[0011] Furthermore, the rebound assembly includes a first fixing seat disposed on the fixed measuring head and a second fixing seat disposed at the bottom of the vertical section of the L-shaped main frame, with a spring connecting the first fixing seat and the second fixing seat.

[0012] The beneficial effect of this utility model is that by using a fixed measuring rod and a movable measuring rod to directly contact the inside of the stop, the dial indicator can accurately read the measured dimensions, avoiding the indirect measurement errors in traditional measurement methods, effectively solving the shortcomings of existing tools, and improving processing accuracy and efficiency.

[0013] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 for Figure 1 Top view.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1—Dial indicator; 2—Fastening bolts; 3—L-shaped main frame;

[0018] 4—Slide groove; 5—Movable measuring head; 6—Movable measuring rod;

[0019] 7—Fixed measuring head; 8—Fixed measuring rod; 9—Rivet;

[0020] 10—First fixed seat; 11—Second fixed seat; 12—Spring. Detailed Implementation

[0021] like Figure 1 and Figure 2 As shown, this utility model includes an L-shaped main frame 3, a dial indicator 1 is provided on the vertical section of the L-shaped main frame 3, and a measuring mechanism that cooperates with the dial indicator 1 is provided on the horizontal section of the L-shaped main frame 3.

[0022] The dial indicator 1 is connected to the vertical section of the L-shaped main frame 3 by fastening bolt 2. The probe of the dial indicator 1 extends through the vertical section of the L-shaped main frame 3 to the top of the horizontal section of the L-shaped main frame 3. The measuring rod of the dial indicator 1 is parallel to the horizontal section of the L-shaped main frame 3.

[0023] The measuring mechanism includes a fixed measuring component that passes through the horizontal section of the L-shaped main frame 3 and is arranged near the dial gauge 1, and a movable measuring component that passes through the horizontal section of the L-shaped main frame 3 and can move along the length of the horizontal section of the L-shaped main frame 3; a spring-loaded assembly is provided between the fixed measuring component and the vertical section of the L-shaped main frame 3.

[0024] The fixed measuring component includes a fixed measuring head 7 disposed on the horizontal section of the L-shaped main frame 3 and a fixed measuring rod 8 disposed vertically at the bottom of the fixed measuring head 7. The fixed measuring head 7 and the fixed measuring rod 8 are integrally formed. The fixed measuring head 7 is connected to the horizontal section of the L-shaped main frame 3 by rivets 9, and the bottom of the fixed measuring rod 8 is provided with a measuring end. The spring-loaded assembly is disposed between the fixed measuring head 7 and the bottom of the vertical section of the L-shaped main frame 3.

[0025] The movable measuring component includes a movable measuring head 5 disposed on the horizontal section of the L-shaped main frame 3 and a movable measuring rod 6 disposed vertically at the bottom of the movable measuring head 5. The movable measuring head 5 and the movable measuring rod 6 are integrally formed. The movable measuring head 5 can move along the length direction of the horizontal section of the L-shaped main frame 3, and the bottom of the movable measuring rod 6 is provided with a measuring end.

[0026] In practical use, the fixed measuring rod 8 and the movable measuring rod 6 can directly contact the inside of the stop. The fixed measuring rod 8 rotates around the rivet 9, making adjustment convenient. This allows the dial indicator 1 to accurately read the deviation dimension. Combined with the actual design dimension, the actual dimension of the shallow stop is obtained. This overcomes the problem of insufficient accuracy caused by poor adaptability of measuring tools for shallow stops, avoids indirect measurement errors in traditional measurement methods, effectively solves the shortcomings of existing tools, shortens processing auxiliary time, and improves processing accuracy and efficiency.

[0027] It should be noted that the fastening bolt 2 is located on one side of the vertical section of the L-shaped main frame 3, and the fastening bolt 2 is perpendicular to the measuring rod of the dial indicator 1. A cross-shaped inner hole is opened on the vertical section of the L-shaped main frame 3 for fixing the dial indicator 1. The dial indicator 1 is fixed to the vertical section of the L-shaped main frame 3 using the fastening bolt 2 (i.e., the conical ring and nut) to ensure stability during measurement. The dial indicator 1, as the main measuring element, has high measurement accuracy and can accurately display data. The selected accuracy of the dial indicator 1 is 0.01mm, and the measuring range is 10mm. The fixed measuring component is located on the right side of the L-shaped main frame 3. The fixed measuring head 7 is connected to the horizontal section of the L-shaped main frame 3 by rivets 9. The fixed measuring head 7 can be adjusted left and right around the rivet 9 as an axis to ensure that the dial indicator 1 can perform measurements. The sliding connection between the movable measuring head 5 and the horizontal section of the L-shaped main frame 3 ensures effective adjustment according to the length of the shallow stop.

[0028] like Figure 2 As shown in this embodiment, a sliding groove 4 is provided on the horizontal section of the L-shaped main frame 3. The sliding groove 4 is arranged along the length direction of the horizontal section of the L-shaped main frame 3, and the fixed measuring component and the movable measuring component are both arranged in the sliding groove 4.

[0029] like Figure 2 As shown, in this embodiment, the fixed measuring head 7 is installed in the slide groove 4; the movable measuring head 5 is slidably disposed in the slide groove 4, and a locking screw is provided on the movable measuring head 5.

[0030] In actual use, the movable measuring head 5 and the slide groove 4 can be slidably connected in the form of a dovetail groove. A locking screw is provided on the movable measuring head 5 to ensure that the movable measuring head 5 is locked in place after being moved into position during measurement, ensuring stability and reliability.

[0031] like Figure 1 As shown, in this embodiment, the rebound assembly includes a first fixed seat 10 disposed on the fixed measuring head 7 and a second fixed seat 11 disposed at the bottom of the vertical section of the L-shaped main frame 3, and a spring 12 is connected between the first fixed seat 10 and the second fixed seat 11.

[0032] In actual use, when the probe of dial indicator 1 contacts the end face of the fixed measuring head 7, the spring 12 will generate a rebound force to avoid damage to the probe and ensure the accuracy of the measurement results.

[0033] In use, the distance between the fixed measuring rod 8 and the movable measuring rod 6 is adjusted according to the design requirements so that the distance between the fixed measuring rod 8 and the movable measuring rod 6 is equal to the length of the shallow stop in the design requirements. The distance between the fixed measuring rod 8 and the movable measuring rod 6 can be adjusted using a micrometer. At this time, the movable measuring rod 6 is locked, and the dial indicator 1 shows zero. Then, the fixed measuring rod 8 and the movable measuring rod 6 are inserted into the shallow stop. According to the actual situation of the shallow stop, the fixed measuring head 7 is rotated and tilted around the rivet 9 so that the measuring ends of the fixed measuring rod 8 and the movable measuring rod 6 abut against the bottom of the shallow stop. The dial indicator 1 displays a value. Finally, the actual size of the shallow stop is obtained by adding or subtracting the design requirement size from the value displayed on the dial indicator 1.

[0034] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A shallow counterbore machining precision measuring device, characterized by: It includes an L-shaped main frame (3), a dial indicator (1) is provided on the vertical section of the L-shaped main frame (3), and a measuring mechanism that cooperates with the dial indicator (1) is provided on the horizontal section of the L-shaped main frame (3); The dial indicator (1) is connected to the vertical section of the L-shaped main frame (3) by fastening bolts (2). The probe of the dial indicator (1) extends through the vertical section of the L-shaped main frame (3) to the top of the horizontal section of the L-shaped main frame (3). The measuring rod of the dial indicator (1) is parallel to the horizontal section of the L-shaped main frame (3). The measuring mechanism includes a fixed measuring component that passes through the horizontal section of the L-shaped main frame (3) and is arranged near the dial indicator (1), and a movable measuring component that passes through the horizontal section of the L-shaped main frame (3) and can move along the length of the horizontal section of the L-shaped main frame (3); a spring-loaded assembly is provided between the fixed measuring component and the vertical section of the L-shaped main frame (3); The fixed measuring component includes a fixed measuring head (7) disposed on the horizontal section of the L-shaped main frame (3) and a fixed measuring rod (8) disposed vertically at the bottom of the fixed measuring head (7). The fixed measuring head (7) and the fixed measuring rod (8) are integrally formed. The fixed measuring head (7) is connected to the horizontal section of the L-shaped main frame (3) by a rivet (9). The bottom of the fixed measuring rod (8) is provided with a measuring end. The spring-loaded assembly is disposed between the bottom of the fixed measuring head (7) and the vertical section of the L-shaped main frame (3). The movable measuring component includes a movable measuring head (5) disposed on the horizontal section of the L-shaped main frame (3) and a movable measuring rod (6) disposed vertically at the bottom of the movable measuring head (5). The movable measuring head (5) and the movable measuring rod (6) are integrally formed. The movable measuring head (5) can move along the length direction of the horizontal section of the L-shaped main frame (3), and the bottom of the movable measuring rod (6) is provided with a measuring end.

2. The device for measuring the accuracy of a shallow collar according to claim 1, characterized in that: A sliding groove (4) is provided on the horizontal section of the L-shaped main frame (3). The sliding groove (4) is arranged along the length of the horizontal section of the L-shaped main frame (3). The fixed measuring component and the movable measuring component are both arranged in the sliding groove (4).

3. The device for measuring the accuracy of a shallow collar according to claim 2, characterized in that: The fixed measuring head (7) is installed in the slide groove (4); the movable measuring head (5) is slidably disposed in the slide groove (4), and a locking screw is provided on the movable measuring head (5).

4. The device for measuring the accuracy of a shallow collar according to claim 1, characterized in that: The rebound assembly includes a first fixed seat (10) disposed on the fixed measuring head (7) and a second fixed seat (11) disposed at the bottom of the vertical section of the L-shaped main frame (3), with a spring (12) connecting the first fixed seat (10) and the second fixed seat (11).

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