A measuring tool capable of quickly detecting the taper of a workpiece

Abstract

The present application relates to the field of taper measuring tool, specifically relates to a kind of measuring tool of the workpiece taper of quick detection, including base, fixed mounting is equipped with support on base, support is placed with workpiece, and the top of workpiece is equipped with measuring assembly;Measuring assembly is equipped with pressure assembly, pressure assembly is used to measure the proper pressure between measuring assembly and workpiece, so that the contact surface between the two is more closely fitted, and pressure assembly includes conduit in measuring assembly.This application is driven by electric slide rail to move measuring assembly into workpiece, replace manual operation, driven by electric slide rail to enter measuring assembly, so that the placement of measuring assembly is more accurate, and the center position offset condition does not appear, the surface of measuring assembly and inner cone is more closely fitted, and pressure assembly is simultaneously arranged, so that air pipe is inhaled, piston moves downward and applies pressure to measuring assembly, i.e., workpiece, overcome microscopic surface roughness, ensure that measuring assembly and the inner taper surface of workpiece are closely fitted.

Description

Technical Field

[0001] This invention relates to the field of tapered measuring instruments, and more particularly to a measuring instrument that can quickly detect the taper of a workpiece. Background Technology

[0002] Taper describes the degree of inclination of the lateral surface of a cone or frustum of a cone relative to its axis. For a cone, a larger taper means a steeper lateral surface; for a frustum of a cone, taper reflects the rate of change of the diameter of its upper and lower bases. In conventional internal taper measurement, a dedicated ring gauge assembly with a dial indicator is typically used to measure the taper of the internal cone. The dial indicator indirectly reflects the taper error by displaying the displacement deviation value. Combined with the taper ratio of the plug gauge, the actual taper value can be calculated. Therefore, the dial indicator is used to determine whether the error is within the allowable range, thereby determining whether the internal taper of the workpiece is qualified.

[0003] When inspecting the inner cone of a workpiece, after the plug gauge in the measuring assembly is manually placed into the inner cone of the workpiece, there is a possibility that the measuring assembly may shift, the axis may not align, the plug gauge may deviate from the center position, and the plug gauge may not be able to maintain contact with the inner cone surface. This shift in the measuring assembly leads to measurement errors, the calculated taper value deviates from the true value, the measurement results are inaccurate, and it affects the judgment of the workpiece's qualification.

[0004] Therefore, a measuring tool for quickly detecting the taper of a workpiece is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a measuring tool that can quickly detect the taper of a workpiece, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a measuring tool for quickly detecting the taper of a workpiece, comprising a base, a bracket fixedly mounted on the base, a workpiece placed in the bracket, and a measuring component on the top of the workpiece; the measuring component includes a pressure applying component, which applies appropriate pressure between the measuring component and the workpiece to make the contact surfaces between them fit better, the pressure applying component includes a conduit channel opened in the measuring component, an air pipe is provided in the conduit channel, and a piston is slidably connected in the air pipe; the measuring component includes a clamping component, which clamps the piston to limit its position and maintain stability, the clamping component includes an air passage provided in the measuring component, and a clamping block adapted to the piston is provided in the measuring component; the measuring component includes a detection component, which detects the fit between the measuring component and the inner cone of the workpiece, the detection component includes a first air outlet and a second air outlet provided in the measuring component, and the first air outlet is connected to the air passage, a pressure sensor is fixedly mounted in the first air outlet and the second air outlet, and an air outlet is provided at the pressure sensor.

[0007] Preferably, an electric slide rail is fixedly installed on the base, a bracket is fixedly installed on the slider of the electric slide rail, a guide rod and a photoelectric switch are fixedly installed on the bracket, and the measuring component is slidably connected to the guide rod.

[0008] Preferably, a control valve assembly is fixedly installed on the measuring component, and a connecting pipe is connected between the air passage and the second air outlet passage and the control valve assembly, and the air pipe is connected to the control valve assembly.

[0009] Preferably, a first spring is fixedly connected between the piston and the air pipe, and a pressure sensor is fixedly installed at the bottom end of the piston.

[0010] Preferably, a first telescopic rod is fixedly installed in the air passage, and a tension spring is fixedly installed inside the first telescopic rod.

[0011] Preferably, a second telescopic rod is fixedly installed in the first air outlet path, and a second spring is fixedly installed in the second telescopic rod.

[0012] Preferably, a sealing seat is fixedly connected to the top end of the second telescopic rod, a sealing gasket is provided on the bottom surface of the sealing seat, and a groove adapted to the sealing seat is provided in the air passage.

[0013] Preferably, there is a gap between the sealing seat, the clamping block and the groove, the gap being used for gas in the gas path to enter the first gas outlet path.

[0014] Preferably, the sealing seat has an inclined surface, and a push block is fixedly connected to the clamping block, and the push block is inclined to match the inclined surface.

[0015] The beneficial effects of this invention are:

[0016] 1. This invention uses an electric slide rail to move the measuring component downwards into the workpiece, replacing manual operation. The electric slide rail ensures more accurate placement of the measuring component, preventing center position deviation and ensuring a closer fit between the measuring component and the inner cone surface. Simultaneously, a pressure-applying component allows air to enter through the air pipe, and the piston moves downwards to apply pressure to the measuring component, which in turn applies pressure to the workpiece. This overcomes microscopic surface roughness, ensuring a tight fit between the measuring component and the inner cone surface of the workpiece, thereby guaranteeing detection accuracy. Furthermore, a pressure sensor adjusts the air intake in real time to ensure appropriate pressure, avoiding excessive or insufficient pressure.

[0017] 2. In this invention, during the process of the piston applying pressure to the measuring component to maintain a relatively stable pressure through the clamping assembly, the air intake in the air passage gradually increases the internal air pressure, pushing the clamping block to move closer to the piston. This causes the clamping block to clamp and limit the piston, preventing air from entering the air pipe and maintaining a relatively stable pressure generated by the piston. This prevents the possibility of air leakage after the air pipe stops entering, which could lead to a decrease in air pressure and thus a decrease in the pressure applied by the piston. As a result, the pressure generated by the piston continues to maintain a relatively stable state.

[0018] 3. This invention, by setting up a detection component, ensures that during the air intake process, airflow also flows into the first and second air outlets. Simultaneously, the air pressure in the air path pushes the clamping block to move, which in turn drives the push block to move the sealing seat downward, keeping the first air outlet sealed. Thus, the air pressure sensors in the sealed first and second air outlets determine whether the internal air pressure changes, thereby determining whether there is an air leak. Based on whether there is external gas leakage, the fit between the inner conical surface and the measuring component is determined, thereby determining whether there is a offset error in the machining of the inner conical surface and detecting the workpiece's qualification. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the detection state structure of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the detection component of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention;

[0023] Figure 4 This invention provides a measuring tool for quickly detecting the taper of a workpiece. Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the detection component structure of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the guide rod structure of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the air tube of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the sealing seat structure of a measuring tool for quickly detecting the taper of a workpiece according to an embodiment of the present invention.

[0028] The components in the diagram are labeled as follows: 1. Base; 2. Support; 3. Workpiece; 4. Measuring component; 5. Conduit; 6. Air pipe; 7. Piston; 8. Air passage; 9. Clamping block; 10. First air outlet; 11. Second air outlet; 12. Air pressure sensor; 13. Electric slide rail; 14. Bracket; 15. Guide rod; 16. Photoelectric switch; 17. Control valve assembly; 18. First spring; 19. Pressure sensor; 20. First telescopic rod; 21. Tension spring; 22. Second telescopic rod; 23. Second spring; 24. Sealing seat; 25. Groove; 26. Gap; 27. Inclined surface; 28. Push block. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this invention should have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0031] like Figures 1 to 8As shown in the figure, a specific embodiment of the present invention provides a measuring tool for quickly detecting the taper of a workpiece, including a base 1, a bracket 2 fixedly mounted on the base 1, a workpiece 3 placed in the bracket 2, and a measuring component 4 provided on the top of the workpiece 3. The measuring component 4 is prior art and has been mentioned in the background art, so it will not be described in detail here. The measuring component 4 is provided with a pressure applying component, which is used to apply appropriate pressure between the measuring component 4 and the workpiece 3, so that the contact surfaces between the two are more closely fitted. By setting the pressure applying component, when the measuring component 4 measures and detects the inner taper of the workpiece 3, it applies appropriate pressure to the measuring component 4, thereby overcoming the microscopic surface roughness and ensuring that the measuring component 4 and the inner taper surface of the workpiece 3 are tightly fitted, thereby ensuring the detection accuracy. However, the pressure applied can be adjusted to be within an appropriate range. The pressure applying component includes a conduit 5 opened in the measuring component 4, an air pipe 6 provided in the conduit 5, and a piston 7 slidably connected in the air pipe 6.

[0032] The measuring component 4 is equipped with a clamping component, which is used to clamp the piston 7 to keep it in a stable position. When the piston 7 in the pressure application component applies appropriate pressure to the workpiece 3, the clamping component can limit and clamp the piston 7 to enhance its stability, making it difficult for the position of the piston 7 to change. This ensures that the pressure generated by the piston 7 is always within a small fluctuation range, and there will be no situation where the pressure cannot be applied to the workpiece 3 due to leakage. The clamping component includes an air passage 8 in the measuring component 4, and the measuring component 4 is equipped with a clamping block 9 that is adapted to the piston 7.

[0033] The measuring component 4 is equipped with a detection component, which is used to detect the fit between the measuring component 4 and the inner cone of the workpiece 3. By setting the detection component, the measuring component 4 can detect whether the two are tightly fitted during the process of detecting the inner cone surface of the workpiece 3, thereby determining whether the inner cone surface of the workpiece 3 is qualified. When the inner cone surface of the workpiece 3 deviates, even if the measuring component 4 is correctly placed, the measuring component 4 and the inner cone surface of the workpiece 3 cannot achieve a fitted state. The detection component includes a first air outlet 10 and a second air outlet 11 provided in the measuring component 4, and the first air outlet 10 is connected to the air outlet 8. A pressure sensor 12 is fixedly installed in the first air outlet 10 and the second air outlet 11, and an air outlet is provided at the pressure sensor 12.

[0034] like Figures 1 to 7As shown, specifically, an electric slide rail 13 is fixedly installed on the base 1. A bracket 14 is fixedly installed on the slider of the electric slide rail 13. A guide rod 15 and a photoelectric switch 16 are fixedly installed on the bracket 14. The measuring component 4 is slidably connected to the guide rod 15. When performing the inner cone detection measurement of the workpiece 3, the workpiece 3 is placed on the bracket 2. The bracket 2 limits the workpiece 3 to maintain a stable position. The electric slide rail 13 is activated to drive the bracket 14 to move downward, thereby driving the measuring component 4 to move downward until the measuring component 4 moves into the inner cone of the workpiece 3 and remains stable. At this time, the measuring component 4 is located in the workpiece 3 and cannot continue to follow the bracket 14. As the measuring component 4 moves downward, it slides off the bracket 14 on the guide rod 15. When the measuring component 4 separates from the top surface of the bracket 14, the photoelectric switch 16 detects the separation and sends a signal to stop the electric slide rail 13 from moving. That is, the bracket 14 no longer moves downward. At the same time, the measuring component 4 is in the workpiece 3. During the process of the measuring component 4 entering the inner cone of the workpiece 3, it replaces manual operation. The electric slide rail 13 drives the measuring component 4 into it, making the placement of the measuring component 4 more accurate and preventing the center position from shifting. The measuring component 4 fits more closely with the surface of the inner cone. At the same time, no manual operation is required, reducing labor intensity and improving efficiency.

[0035] A control valve assembly 17 is fixedly mounted on the measuring component 4. A connecting pipe connects the air passage 8 and the second air outlet 11 to the control valve assembly 17. An air pipe 6 is connected to the control valve assembly 17. A first spring 18 is fixedly connected between the piston 7 and the air pipe 6. A pressure sensor 19 is fixedly mounted at the bottom of the piston 7. The control valve assembly 17 is connected to an external air supply device to provide gas. After the measuring component 4 is placed inside the workpiece 3, the control valve assembly 17 controls the gas flow direction, causing the airflow to enter through the air pipe 6. The airflow accumulates in the air pipe 6, gradually increasing its internal pressure, thus pushing the piston 7 downwards. The first spring 18 contracts under pressure, and the piston 7 slides downwards in the guide channel 5. As the pressure sensor 19 at the bottom of piston 7 gradually comes into contact with the bottom surface and applies pressure, the piston 7 continuously applies pressure to the bottom surface of the guide tube 5, that is, continuously applies pressure to the measuring component 4. The pressure sensor 19 senses the pressure and transmits the pressure value, thereby determining the approximate pressure value of the measuring component 4. The air intake is adjusted according to the pressure value to keep the pressure within an appropriate range, avoiding excessive or insufficient pressure. When the pressure value is within the appropriate range, the air intake is stopped, and the control valve assembly 17 closes the valve, so that the inside of the air tube 6 is in a relatively sealed state. At this time, the pressure on the measuring component 4 is in a relatively stable state.

[0036] like Figure 3 and Figure 4As shown, specifically, a first telescopic rod 20 is fixedly installed in the air passage 8, and a tension spring 21 is fixedly installed inside the first telescopic rod 20. After the control valve assembly 17 closes the valve and the air pipe 6 no longer receives air, the control valve assembly 17 opens the valve of the connecting pipe, allowing airflow to enter the air passage 8 and the second air outlet 11 through the connecting pipe. There is a gap 26 between the sealing seat 24, the clamping block 9, and the groove 25. The gap 26 is used for the gas in the air passage 8 to enter the first air outlet 10. At the same time, the airflow entering the air passage 8 enters the first air outlet 10 through the gap 26. Since the air outlets of the first air outlet 10 and the second air outlet 11 are in contact with the inner conical surface of the workpiece 3, the airflow... Since a large amount of gas cannot leak out, as the airflow continuously enters the air passage 8, its internal air pressure gradually increases. The gas pressure pushes the clamp 9 to move in the measuring component 4 and gradually fits against the piston 7, thereby applying pressure to the piston 7 to clamp it, thus keeping the position of the piston 7 stable and clamping and limiting its position. This prevents the possibility of airflow leakage after the air passage 6 stops entering, which could lead to a decrease in air pressure and thus a decrease in the pressure applied by the piston 7. This keeps the pressure generated by the piston 7 in a relatively stable state. During the clamping process, the movement of the clamp 9 causes the first telescopic rod 20 to extend, and the internal tension spring 21 is stretched under force to generate a reaction force.

[0037] like Figures 1 to 8As shown, specifically, a second telescopic rod 22 is fixedly installed in the first air outlet 10, and a second spring 23 is fixedly installed in the second telescopic rod 22. A sealing seat 24 is fixedly connected to the top of the second telescopic rod 22, and a sealing gasket is provided on the bottom surface of the sealing seat 24. A groove 25 adapted to the sealing seat 24 is provided in the air passage 8. An inclined surface 27 is provided on the sealing seat 24. A push block 28 is fixedly connected to the clamping block 9, and the push block 28 is inclined to match the inclined surface 27. During the above process, when the clamping block 9 moves closer to the piston 7 to clamp it, the movement of the clamping block 9 drives the push block 28 to move. Thus, under the action of the inclined surface 27 and the inclined surface on the push block 28, the sealing seat 24 can move downward. 4. Gradually moving into the groove 25, the sealing gasket and the groove 25 cooperate to prevent airflow in the air passage 8 from entering the first air outlet 10, thus maintaining a stable air pressure in the first air outlet 10. The downward movement of the sealing seat 24 causes the second telescopic rod 22 to contract, and the second spring 23 to contract, generating a reaction force. As airflow enters the air passage 8, airflow also enters the second air outlet 11, gradually increasing its internal air pressure. When sufficient airflow has entered the air passage 8 and the second air outlet 11 within a certain period, the control valve assembly 17 closes the valve to prevent further airflow. At this point, the first air outlet 10 is restricted by the sealing seat 24, maintaining a stable internal air pressure. In this state, no more airflow enters the second air outlet 11, and the internal air pressure is stable. At this time, the air pressure sensors 12 in the first air outlet 10 and the second air outlet 11 display their respective internal air pressures and transmit values. If the values ​​of the two air pressure sensors 12 are relatively stable and remain basically unchanged, it means that the first air outlet 10 and the second air outlet 11 are in a relatively sealed state, and the internal airflow cannot leak. However, if the air pressure values ​​of the air pressure sensors 12 fluctuate greatly and the air pressure decreases rapidly, it means that there is a gas leak at the air outlet. The airflow leaks outward through the air outlet at the air pressure sensor 12, indicating that the measuring component 4 and the inner conical surface of the workpiece 3 are not completely in contact, and there is a small gap. If an error occurs during processing and the position shifts, resulting in workpiece 3 being found to be defective, after the inspection is completed, the control valve assembly 17 controls the valve to exhaust gas, causing the air pipe 6 and air passage 8 to exhaust gas. After the gas in air passage 8 is exhausted, the clamping block 9 is no longer pushed by the air pressure, and thus moves and resets under the reaction force of the tension spring 21, disengaging from the piston 7. At the same time, the gas in air pipe 6 is exhausted, and the piston 7 is no longer under force, so it moves upward and resets under the reaction force of the first spring 18, driving the electric slide rail 13 to move upward. As a result, the bracket 14 moves upward and re-attaches to the measuring assembly 4, driving the measuring assembly 4 to move upward. The measuring assembly 4 moves upward and disengages from workpiece 3, and then workpiece 3 is removed for the next workpiece 3 to be inspected.

[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention includes the claims being limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

[0039] This invention is intended to cover all such substitutions, modifications, and alterations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A measuring tool for quickly detecting the taper of a workpiece, comprising a base (1), a bracket (2) fixedly mounted on the base (1), a workpiece (3) placed in the bracket (2), and a measuring component (4) provided on the top of the workpiece (3), characterized in that: The measuring component (4) is provided with a pressure application component, which is used to apply pressure between the measuring component (4) and the workpiece so that the contact surfaces between the two are more closely fitted. The pressure application component includes a conduit (5) opened in the measuring component (4), an air pipe (6) is provided in the conduit (5), and a piston (7) is slidably connected in the air pipe (6). The measuring component (4) is provided with a clamping component, which is used to clamp the piston (7) to keep it in a stable position. The clamping component includes an air passage (8) provided in the measuring component (4). The measuring component (4) is provided with a clamping block (9) adapted to the piston (7). The measuring component (4) is provided with a detection component, which is used to detect the fit between the measuring component (4) and the inner cone of the workpiece (3). The detection component includes a first air outlet (10) and a second air outlet (11) provided in the measuring component (4), and the first air outlet (10) is connected to the air path (8). A pressure sensor (12) is fixedly installed in the first air outlet (10) and the second air outlet (11), and an air outlet is provided at the pressure sensor (12). An electric slide rail (13) is fixedly installed on the base (1), a bracket (14) is fixedly installed on the slider of the electric slide rail (13), a guide rod (15) and a photoelectric switch (16) are fixedly installed on the bracket (14), and the measuring component (4) is slidably connected to the guide rod (15). A second telescopic rod (22) is fixedly installed in the first air outlet (10), and a second spring (23) is fixedly installed in the second telescopic rod (22). The top end of the second telescopic rod (22) is fixedly connected to a sealing seat (24), and the bottom surface of the sealing seat (24) is provided with a sealing gasket. The air passage (8) is provided with a groove (25) that matches the sealing seat (24). There is a gap (26) between the sealing seat (24), the clamping block (9) and the groove (25). The gap (26) is used for the gas in the air passage (8) to enter the first air outlet passage (10). The sealing seat (24) has an inclined surface (27), and a push block (28) is fixedly connected to the clamping block (9), and the push block (28) is set in an inclined shape to match the inclined surface (27).

2. The measuring tool for rapidly detecting the taper of a workpiece according to claim 1, characterized in that, A control valve assembly (17) is fixedly installed on the measuring component (4). A connecting pipe is connected between the air passage (8) and the second air outlet passage (11) and the control valve assembly (17). The air pipe (6) is connected to the control valve assembly (17).

3. The measuring tool for rapidly detecting the taper of a workpiece according to claim 1, characterized in that, A first spring (18) is fixedly connected between the piston (7) and the air pipe (6), and a pressure sensor (19) is fixedly installed at the bottom of the piston (7).

4. The measuring tool for rapidly detecting the taper of a workpiece according to claim 1, characterized in that, A first telescopic rod (20) is fixedly installed in the air passage (8), and a tension spring (21) is fixedly installed inside the first telescopic rod (20).

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