Special taper hole measuring gauge

Abstract

The utility model provides a special taper hole measuring gauge, and relates to the technical field of taper hole measurement, the special taper hole measuring gauge comprises a measuring cylinder, the middle part of the inner side of the measuring cylinder is provided with a mounting seat, the middle parts of the two ends of the mounting seat are slidably provided with measuring needles, and the two groups of measuring needles are respectively arranged in the middle parts of the two ends of the measuring cylinder, penetrate through the inner wall of the measuring cylinder and extend out; a transmission assembly is arranged in the middle of the inner side of the mounting base and used for driving the measuring needle to slide in the horizontal direction. A driving assembly is arranged in the middle of the top end of the mounting base and comprises a main rod, the main rod is slidably mounted at the upper end of the inner side of the measuring cylinder, the tail end of the main rod is rotatably mounted in the middle of the inner side of the mounting base, driving force is provided for the transmission assembly by rotating the main rod, and the mounting base is driven to ascend and descend by pushing and pulling the main rod. According to the technical scheme provided by the utility model, the depth, the outer opening diameter and the gradient of the taper hole can be measured and calculated at the same time, and the convenience and the efficiency of measuring the taper hole of a part are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cone hole measurement, in particular to a special cone hole measurement inspection tool. Background Art

[0002] In the field of mechanical engineering or manufacturing, "taper hole" usually refers to a special hole type, which is similar to a cone in shape. This hole type is usually used to connect two parts, one of which has a tapered protrusion and the other has a matching tapered hole. The tapered hole connection can be used to fasten and position the parts. Taper hole connections are commonly found in mechanical equipment, tools, and engineering structures.

[0003] After a tapered hole is opened in a mechanical part, measuring tools are often needed to measure the depth, diameter and slope of the tapered hole to detect the quality of the hole opening.

[0004] In order to solve the above problems, we propose a special cone hole measuring fixture to solve the above problems. Utility Model Content

[0005] In order to solve the problems in the background technology, the utility model provides a special cone hole measuring fixture.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A special cone hole measuring tool comprises a measuring cylinder, a mounting seat is arranged in the middle of the inner side of the measuring cylinder, measuring needles are slidably mounted in the middle of both ends of the mounting seat, two groups of measuring needles are respectively arranged in the middle of both ends of the measuring cylinder, and pass through the inner wall of the measuring cylinder and extend out;

[0008] A transmission assembly is provided in the middle of the inner side of the mounting seat, and the transmission assembly is used to drive the measuring needle to slide in the horizontal direction;

[0009] A driving assembly is provided at the middle of the top end of the mounting seat, comprising a main rod, the main rod is slidably mounted on the inner upper end of the measuring tube, the end of the main rod is rotatably mounted on the inner middle part of the mounting seat, and the top end of the main rod protrudes out of the measuring tube;

[0010] The main rod is rotated to provide driving force to the transmission assembly, and the main rod is pushed and pulled to drive the mounting seat to perform lifting movement.

[0011] Preferably, the transmission assembly includes a rotating shaft, which is rotatably mounted on the inner middle part of the mounting seat, the top of the rotating shaft is fixedly connected to the bottom end of the main rod, a first bevel gear is provided in the middle part of the rotating shaft, and second bevel gears are transmission-connected on both sides of the bottom end of the first bevel gear, a screw rod is provided in the inner middle part of the second bevel gear, and the screw rod is transmission-connected to the measuring needle.

[0012] Preferably, support blocks are provided at both ends of the inner side of the mounting seat, and two groups of the support blocks are respectively arranged at the middle of both ends of the rotating shaft, and one end of the screw rod is rotatably mounted at the inner middle of the support block.

[0013] Preferably, a limiting slide groove is provided at the middle of both ends of the measuring cylinder, the measuring needle extends out of the limiting slide groove, and a limiting slider is provided on the lower side of both ends of the mounting seat, and the limiting slider is slidably installed in the inner middle part of the limiting slide groove.

[0014] Preferably, a top cover is provided at the middle portion of the top end of the measuring tube, and the main rod is slidably mounted at the inner middle portion of the top cover.

[0015] Preferably, a handle is provided at the top of the main rod to facilitate use by users.

[0016] Preferably, vertical scales are provided in the middle of both ends of the measuring cylinder, and the vertical scales are located outside the limiting sliding groove.

[0017] Preferably, a horizontal scale is provided in the middle of the outer surface of the measuring needle.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The technical solution proposed by the utility model can simultaneously measure and calculate the depth, outer diameter and slope of the tapered hole, effectively improving the convenience and efficiency of measuring the tapered holes of components;

[0020] The specific operation process is to first insert the measuring cylinder into the tapered hole to be measured, and then push the main rod to make the two groups of measuring needles slide down to the outer diameter of the tapered hole to be measured, and then rotate the main rod to provide driving force to the transmission component. Under the action of the transmission component, the two groups of measuring needles slide horizontally. When the two groups of measuring needles extend outward and reach the inner wall of the tapered hole, the diameter of the outer opening of the tapered hole can be measured; at the same time, the vertical scale set on the outer surface of the measuring cylinder can measure the depth of the tapered hole. When the depth and the outer diameter of the tapered hole are measured, the slope of the tapered hole can be calculated.

[0021] 2. The technical solution proposed in the utility model can drive the mounting seat to move up and down inside the measuring tube by pushing and pulling the main rod, so that the utility model is suitable for measuring and detecting tapered holes of different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 This is a side view of the structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the measuring tube in the utility model;

[0025] Figure 4 It is a side sectional structural diagram of the driving component in the utility model.

[0026] In the figure: 1. Measuring cylinder; 2. Limit slide groove; 3. Vertical scale; 4. Mounting seat; 5. Measuring needle; 6. Horizontal scale; 7. Limit slider; 8. Screw rod; 9. Support block; 10. Rotating shaft; 11. First bevel gear; 12. Second bevel gear; 13. Main rod; 14. Handle; 15. Top cover. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a special tapered hole measuring fixture. The proposed technical solution can simultaneously measure and calculate the depth, outer diameter and slope of the tapered hole, effectively improving the convenience and efficiency of measuring the tapered holes of components.

[0028] Example: Refer to Figure 1-4 As shown, a special cone hole measuring gauge of this embodiment comprises a measuring cylinder 1, a mounting seat 4 is arranged in the middle of the inner side of the measuring cylinder 1, measuring needles 5 are slidably mounted in the middle of both ends of the mounting seat 4, and two groups of measuring needles 5 are respectively arranged in the middle of both ends of the measuring cylinder 1, and pass through the inner wall of the measuring cylinder 1 and extend out;

[0029] A transmission assembly is provided in the inner middle part of the mounting seat 4, and the transmission assembly is used to drive the measuring needle 5 to slide in the horizontal direction; the transmission assembly includes a rotating shaft 10, which is rotatably mounted in the inner middle part of the mounting seat 4, and the top of the rotating shaft 10 is fixedly connected to the bottom end of the main rod 13, and a first bevel gear 11 is provided in the middle part of the rotating shaft 10, and the second bevel gears 12 are transmission-connected on both sides of the bottom end of the first bevel gear 11, and a screw rod 8 is provided in the inner middle part of the second bevel gear 12, and the screw rod 8 is transmission-connected to the measuring needle 5.

[0030] The first bevel gear 11 is driven to rotate by the rotating shaft 10, thereby driving the two sets of second bevel gears 12 to rotate. The second bevel gears 12 are rotated to drive the screw rod 8 to rotate, thereby driving the measuring needle 5 to slide in the horizontal direction.

[0031] A driving assembly is provided in the middle of the top end of the mounting seat 4, including a main rod 13, which is slidably mounted on the inner upper end of the measuring tube 1, and the end of the main rod 13 is rotatably mounted on the inner middle part of the mounting seat 4, and the top end of the main rod 13 protrudes out of the measuring tube 1, wherein the main rod 13 is rotated to provide driving force to the transmission assembly.

[0032] The main rod 13 is pushed and pulled to drive the mounting seat 4 to perform lifting and lowering movements, thereby facilitating the measurement of tapered holes of different depths.

[0033] Support blocks 9 are provided at both ends of the inner side of the mounting seat 4. Two groups of support blocks 9 are respectively arranged at the middle of both ends of the rotating shaft 10. One end of the screw rod 8 is rotatably installed in the middle of the inner side of the support block 9. The support block 9 plays a role of stabilizing the rotation of the screw rod 8.

[0034] A limiting groove 2 is provided in the middle of both ends of the measuring tube 1, and the measuring needle 5 extends out of the limiting groove 2. A limiting slider 7 is provided on the lower side of both ends of the mounting seat 4. The limiting slider 7 is slidably installed in the middle of the inner side of the limiting groove 2. The limiting slider 7 plays a limiting role, thereby improving the stability of the mounting seat 4 when it is lifted and slid.

[0035] In some examples, a top cover 15 is provided at the middle of the top end of the measuring tube 1, and the main rod 13 is slidably installed in the middle of the inner side of the top cover 15. The top cover 15 limits the main rod 13 and improves the stability of the main rod 13 when it is raised or lowered.

[0036] In some examples, a handle 14 is provided at the top of the main rod 13 .

[0037] In some examples, vertical scales 3 are provided in the middle of both ends of the measuring tube 1 , and the vertical scales 3 are located outside the limiting slide groove 2 . The vertical scales 3 are used to measure the depth of the tapered hole.

[0038] In some examples, a horizontal scale 6 is provided in the middle of the outer surface of the measuring needle 5 to facilitate the measurement of the diameter of the tapered hole.

[0039] The working principle of the utility model is:

[0040] In the process of measuring the tapered hole, the measuring cylinder 1 is first inserted into the tapered hole to be measured, and then the main rod 13 is pushed to adjust the position of the mounting seat 4 until the two sets of measuring needles 5 slide down to the outer diameter of the tapered hole to be measured, and then the main rod 13 is rotated to drive the rotating shaft 10 to rotate, thereby driving the first bevel gear 11 and the second bevel gear 12 to rotate;

[0041] The second bevel gear 12 rotates to drive the screw rod 8 to rotate. Under the action of the transmission, the measuring needle 5 slides horizontally. When the two sets of measuring needles 5 extend outward and touch the inner wall of the tapered hole, the diameter of the outer opening of the tapered hole can be measured.

[0042] At the same time, the depth of the tapered hole can be measured by the vertical scale 3 provided on the outer surface of the measuring tube 1. When the depth and the outer diameter of the tapered hole are measured, the slope of the tapered hole can be calculated.

[0043] The utility model can quickly measure the depth, outer diameter and slope of the tapered hole through the structure and method, thereby effectively improving the convenience of measurement.

[0044] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A special cone hole measuring fixture, characterized in that: The measuring tube (1) comprises a mounting seat (4) provided at the middle of the inner side of the measuring tube (1), measuring needles (5) being slidably mounted at the middle of both ends of the mounting seat (4), two groups of measuring needles (5) being respectively arranged at the middle of both ends of the measuring tube (1) and passing through the inner wall of the measuring tube (1) and extending out; A transmission assembly is provided in the middle of the inner side of the mounting seat (4), and the transmission assembly is used to drive the measuring needle (5) to slide in the horizontal direction; A driving assembly is provided at the middle of the top end of the mounting seat (4), comprising a main rod (13), the main rod (13) being slidably mounted on the inner upper end of the measuring tube (1), the end of the main rod (13) being rotatably mounted on the inner middle part of the mounting seat (4), the top end of the main rod (13) protruding out of the measuring tube (1); The main rod (13) is rotated to provide driving force to the transmission assembly, and the main rod (13) is pushed and pulled to drive the mounting seat (4) to perform lifting movement.

2. A special cone hole measuring fixture according to claim 1, characterized in that: The transmission assembly comprises a rotating shaft (10), the rotating shaft (10) being rotatably mounted on the inner middle portion of the mounting seat (4), the top end of the rotating shaft (10) being fixedly connected to the bottom end of the main rod (13), a first bevel gear (11) being arranged in the middle portion of the rotating shaft (10), both sides of the bottom end of the first bevel gear (11) being transmission-connected to second bevel gears (12), a screw rod (8) being arranged in the inner middle portion of the second bevel gear (12), and the screw rod (8) being transmission-connected to the measuring needle (5).

3. A special cone hole measuring fixture according to claim 2, characterized in that: Support blocks (9) are provided at both ends of the inner side of the mounting seat (4), and two groups of the support blocks (9) are respectively provided at the middle of both ends of the rotating shaft (10), and one end of the screw rod (8) is rotatably mounted at the inner middle of the support block (9).

4. A special cone hole measuring fixture according to claim 3, characterized in that: A limit slide groove (2) is provided at the middle of both ends of the measuring cylinder (1), and the measuring needle (5) extends out of the limit slide groove (2). A limit slide block (7) is provided at the lower side of both ends of the mounting seat (4), and the limit slide block (7) is slidably mounted in the middle of the inner side of the limit slide groove (2).

5. A special cone hole measuring fixture according to claim 4, characterized in that: A top cover (15) is provided at the middle of the top end of the measuring cylinder (1), and the main rod (13) is slidably mounted at the middle of the inner side of the top cover (15).

6. A special cone hole measuring fixture according to claim 5, characterized in that: A handle (14) is provided at the top end of the main rod (13).

7. The special cone hole measuring fixture according to claim 5, characterized in that: A vertical scale (3) is provided in the middle of both ends of the measuring cylinder (1), and the vertical scale (3) is located outside the limiting sliding groove (2).

8. The special cone hole measuring fixture according to claim 4 is characterized in that: A horizontal scale (6) is provided in the middle of the outer surface of the measuring needle (5).

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