Device and method for rapidly detecting perpendicularity of end face and outer circle of engine valve seat ring

Abstract

The invention discloses a rapid detection device and method for verticality of an end face and an outer circle of an engine valve seat ring, solves the problem that the detection precision and the detection efficiency of verticality of the end face and the outer circle of the valve seat ring cannot be adjusted in the prior art, and has the beneficial effects of improving the detection efficiency and the detection precision at the same time. According to the specific scheme, the rapid detection device comprises a workbench, the workbench is supported through a bottom plate, a base plate is arranged on one side of the workbench and used for making contact with the end face of the valve seat ring, and a V-shaped supporting table is provided with a supporting face to make contact with the outer circle face of the valve seat ring; the pressing assembly and the base plate are oppositely arranged, the pressing assembly and the V-shaped supporting table are detachably connected so that the valve seat ring can be pressed on the base plate, the mounting base and the workbench can slide and be connected in a locked mode, the mounting base supports at least two displacement sensors, and the displacement sensors can obtain the deviation value between two points on the same generatrix of the outer circle face of the valve seat ring.

Description

Technical Field

[0001] This invention relates to the field of engine testing technology, and in particular to a rapid testing device and method for the perpendicularity of the end face of the engine valve seat to its outer circle. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] As a crucial component on the engine cylinder head, the valve seat ring is primarily used to seal the engine's intake and exhaust valves. The perpendicularity of its end face to the outer circle is a critical parameter, determining the operational status of the valve train. If the perpendicularity exceeds the standard, it needs to be repaired through reaming, grinding, or replacement of the seat ring to ensure the contact surface is located in the lower middle part of the valve ramp. However, measuring this parameter has always been a challenging problem for manufacturers. Some companies use roundness or cylindricity testers, which, while accurate, are inefficient. Coordinate measuring machines (CMMs) are also used, but these have significant errors. Other testing devices measure the circular runout of a cross-section of the outer circle relative to the end face to approximate the perpendicularity of the end face to the outer circle. However, the inventors found that this measurement method does not actually meet the required perpendicularity requirement of the end face to the outer circle. In other words, some existing testing methods suffer from low efficiency, while others have low accuracy, creating a trade-off between efficiency and precision. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a rapid detection device for the perpendicularity of the end face of the engine valve seat ring to the outer circle, which can effectively improve the detection accuracy while ensuring the detection accuracy.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: A rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer diameter includes a worktable supported by a base plate. A pad is provided on one side of the worktable for contacting the end face of the valve seat ring. A V-shaped support platform is also provided on one side of the pad, with a support surface for contacting the outer diameter of the valve seat ring. A clamping assembly is disposed opposite to the pad and detachably connected to the V-shaped support platform to press the valve seat ring against the pad. A mounting base is slidably and lockably connected to the worktable. At least two displacement sensors are supported by the mounting base, arranged side-by-side so that each displacement sensor can contact two points on the same generatrix of the outer diameter of the valve seat ring. The displacement sensors can obtain the deviation value between two points on the same generatrix of the outer diameter of the valve seat ring.

[0006] As described above, in a rapid detection device for the perpendicularity of the end face of an engine valve seat to its outer circle, each of the displacement sensors is connected to a control unit. The control unit obtains the perpendicularity of the end face of the valve seat to its outer circle based on the maximum deviation between the values ​​displayed by the two displacement sensors during one rotation of the valve seat, the diameter of the valve seat, and the X-axis distance between the two displacement sensors.

[0007] As described above, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes two displacement sensors. A lateral movement mechanism is provided at the mounting base, and the lateral movement mechanism is connected to the displacement sensors. The position of the two displacement sensors is adjusted through the lateral movement mechanism, and the X-axis distance between the two displacement sensors is adjustable.

[0008] As described above, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes a lateral movement mechanism fixed to the inner side of the mounting base. The lateral movement mechanism is a linear electric cylinder, the output end of which is connected to a sensor mounting base. The displacement sensor is mounted through the sensor mounting base. The sensor mounting base is equipped with an elongated hole to adjust the Y-axis distance between the two displacement sensors.

[0009] As described above, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes an adjustment block on the top of the worktable, and a locking member passing through the adjustment block and connected to the mounting base.

[0010] As described above, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes a guide rail on one side of the worktable, a mounting base that is slidably connected to the guide rail, and the guide rail being positioned above the pad.

[0011] As described above, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes a clamping assembly comprising a support base fixed to the side of a V-shaped support platform. A clamping plate is provided at the end of the support base away from the worktable. The clamping plate is connected to a locking block via an elastic element. A bolt passes through the locking block. A cylindrical block is provided at the head of a rotating shaft. The cylindrical block can contact the end of the valve seat ring away from the pad to clamp the valve seat ring.

[0012] As described above, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes a V-shaped support platform comprising a support block, which is fixedly connected to the worktable. Two triangular blocks are arranged on the upward side of the support block, which are opposite each other and spaced apart. The inclined side of the triangular blocks forms a support surface that contacts the outer circle surface of the valve seat ring. A recess is formed between the two triangular blocks on the support block. The centerline of the V-shaped support platform and the centerline of the displacement sensor are set on the same plane.

[0013] As described above, in a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, the bottom of the worktable is supported by a base plate, and the base plate is supported by feet. The height of the feet is adjustable, and the workbench is equipped with a level.

[0014] Secondly, the present invention also provides a rapid detection method for the perpendicularity of the end face of an annular component to its outer circle, employing the aforementioned rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, comprising the following: A standard cylindrical square was used to calibrate the zero points of the two displacement sensors; After zero-point calibration, place the annular component, bring the annular component to be tested into contact with the pad, bring the V-shaped support platform into contact with the outer circular surface of the annular component, and press the annular component into place using the clamping assembly. Observe the changes in the readings of the two displacement sensors and record the corresponding data. Rotate the ring component one revolution and record the displayed data of the two displacement sensors during the rotation. Obtain the maximum deviation of the displayed values ​​of the two displacement sensors during the rotation. Based on the maximum deviation of the displayed values ​​of the two displacement sensors during the rotation, the diameter of the ring component, and the X-direction distance between the two displacement sensors, obtain the perpendicularity of the end face of the ring component to the outer circle.

[0015] The beneficial effects of the present invention are as follows: 1) This invention includes a worktable with a pad, a V-shaped support, and a clamping assembly. The valve seat ring is placed in contact with the pad, and the V-shaped support contactes and limits the outer surface of the valve seat ring. The clamping assembly clamps the valve seat ring from one side relative to the pad, ensuring the position of the valve seat ring during the test to improve the test accuracy. At least two displacement sensors are supported by mounting bases and arranged side by side, allowing the displacement sensors to contact two positions on the same generatrix of the outer circle of the valve seat ring. This allows the deviation value between two points on the same generatrix of the outer circle of the valve seat ring to be obtained. From this deviation value, the perpendicularity of the valve seat ring end face to the outer circle can be obtained. Moreover, since the two displacement sensors can obtain the deviation value between two points on the same generatrix, the test accuracy is improved.

[0016] 2) In this invention, a control unit is set up. The control unit obtains the perpendicularity between the end face of the valve seat and the outer circle based on the maximum deviation value displayed by the two displacement sensors during the rotation of the valve seat, the diameter of the valve seat, and the X-direction distance between the two displacement sensors. The control unit performs direct calculation, which facilitates the rapid and accurate presentation of the detection results.

[0017] 3) In this invention, a lateral moving mechanism is provided at the mounting base. The position of the two displacement sensors is adjusted by the lateral moving mechanism, and the X-direction distance between the two displacement sensors is adjustable so that the displacement sensors can be adapted to the detection of valve seat rings of different thicknesses. The Y-direction distance between the two displacement sensors is adjustable so as to ensure that the center lines of the two displacement sensors are set on the same plane during detection.

[0018] 4) The clamping assembly in this invention has a reasonable structure. The clamping assembly includes a support base and a clamping plate. The clamping plate can be placed on the outside of the valve seat ring. The clamping plate and the support base are detachably connected. The clamping plate is connected to the bolts through a locking block. A cylindrical block is provided at the head of the rotating shaft. The cylindrical block can contact the end of the valve seat ring away from the pad to clamp the valve seat ring. The reasonable structure can quickly clamp the valve seat ring. The setting of the elastic element will not interfere with the rotation of the valve seat ring.

[0019] 5) This invention provides a rapid detection method for the perpendicularity of the end face of an annular component to the outer circle. The annular component is effectively compressed to ensure stability during rotation. The maximum deviation value of the displacement change between two points on the same generatrix can be obtained by at least two displacement sensors, which can realize rapid detection of the perpendicularity of the end face of the annular component to the outer circle and ensure detection accuracy. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0021] Figure 1 This is a schematic diagram of a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle according to one or more embodiments of the present invention. Figure 1 .

[0022] Figure 2 This is a schematic diagram of a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle according to one or more embodiments of the present invention. Figure 2 .

[0023] Figure 3 This is a front view of a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, according to one or more embodiments of the present invention.

[0024] Figure 4 This is a side view of a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, according to one or more embodiments of the present invention.

[0025] Figure 5 This is a top view of a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, according to one or more embodiments of the present invention.

[0026] Figure 6 This is an enlarged view of the sensor mounting base in a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, according to one or more embodiments of the present invention.

[0027] Figure 7 This is a schematic diagram of the lateral movement mechanism in a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, according to one or more embodiments of the present invention.

[0028] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.

[0029] The components are: 1. Foot, 2. Base plate, 3. Worktable, 4. V-shaped support platform, 5. Support base, 6. Rotary shaft, 7. Pad, 8. Sensor mounting base, 9. Mounting base, 10. Guide rail, 11. Locking bolt, 12. Adjusting block, 13. Pressure plate, 14. Clamping block, 15. Spring, 16. Screw, 17. Lateral movement mechanism, 18. Displacement sensor, 19. Valve seat ring, 20. Support block, 21. Triangular block, 22. Recess, 23. Adjusting bolt, 24. First elongated hole, 25. X-axis block, 26. Second elongated hole, 27. Mounting block, 28. Bolt, 29. Opening, 30. Nut. Detailed Implementation

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, unless otherwise expressly indicated by the invention, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof. As described in the background section, the existing technology has a problem that the detection accuracy and efficiency of the perpendicularity between the valve seat end face and the outer circle cannot be reconciled. In order to solve the above technical problems, the present invention proposes a rapid detection device for the perpendicularity between the engine valve seat end face and the outer circle.

[0032] Example 1 In a typical embodiment of the present invention, reference is made to Figure 1As shown, a rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle includes a worktable 3, which is supported by a base plate 2. A pad 7 is provided on one side of the worktable 3 for contacting the end face of the valve seat ring 19. A V-shaped support platform 4 is also provided on one side of the pad on the worktable 3. The V-shaped support platform 4 has a support surface for contacting the outer circle surface of the valve seat ring 19. A clamping assembly is disposed opposite to the pad 7 and is detachably connected to the V-shaped support platform 4 to press the valve seat ring 19 onto the pad 7. A mounting base 9 is slidably and lockably connected to the worktable 3. At least two displacement sensors 18 are supported by the mounting base 9. The displacement sensors 18 are arranged side by side so that the displacement sensors 18 can contact two positions on the same generatrix of the outer circle of the valve seat ring 19. The displacement sensors 18 can obtain the deviation value between two points on the same generatrix of the outer circle surface of the valve seat ring.

[0033] In this embodiment, the workbench 3 is supported by the base plate 2. The workbench 3 is vertically connected to the base plate 2. A pad 7 is provided on one side of the workbench. The pad 7 is parallel to the workbench 3 and the two are in close contact. Fasteners such as bolts pass through the pad to fix the four corners of the pad 7 to the workbench. The length of the pad is less than the height of the workbench, and the width of the pad 7 is less than the width of the workbench 3. The pad 7 is used to contact the end face of the valve seat 19. During the measurement, the pad 7 and the valve seat 19 always maintain close contact. Multiple oblique grooves can be provided on the surface of the pad 7. The bottom side of the pad contacts the upper surface of the fixing block in the V-shaped support platform.

[0034] It is easy to understand that the bottom of the workbench 3 is supported by multiple feet 1. The feet 1 can be fixed feet, or, in some examples, the feet 1 can be height-adjustable feet. By adjusting the height of the feet 1, the level of the workbench 3 can be adjusted. A bubble level can be installed on the workbench 3 to adjust the level of the workbench.

[0035] refer to Figure 1 As shown, a V-shaped support platform 4 is provided on the bottom side of the workbench, that is, the side of the workbench closest to the base plate. The outer circular surface of the valve seat ring 19 is positioned by the V-shaped support platform 4. The bottom of the V-shaped support platform 4 is spaced apart from the base plate 2. The V-shaped support platform 4 includes a support block 20, which is fixedly connected to the workbench 3 (by bolts). The support block is rectangular in shape. Triangular blocks 21 are provided on both sides of the upward side of the support block. The longitudinal section of the triangular block 21 is a right triangle. The inclined side of the triangular block 21 forms a support surface that contacts the outer circular surface of the valve seat ring. The two triangular blocks 21 are spaced apart. The support block 20 forms a recess between the two triangular blocks 21 to avoid interference between the support block and the bottom of the valve seat ring. In addition, a weight-reducing hole can be provided in the recess of the support block to reduce the mass of the V-shaped support platform.

[0036] It is easy to understand that a guide rail 10 is also provided on the side of the workbench 3. The mounting base 9 is slidably connected to the guide rail 10. The cross section of the guide rail 10 is trapezoidal. The mounting base 9 is provided with a recess, which is also trapezoidal, so that the mounting base 9 and the guide rail 10 are stably connected. There are two guide rails 10 in total, and the two guide rails 10 are spaced apart. The guide rail 10 is located on the upper side of the pad 7. In this embodiment, the mounting base 9 is a U-shaped mounting base, with its open side facing away from the worktable. A displacement sensor 18 is mounted in the middle of the mounting base 9. The displacement sensor 18 is specifically an inductive or optical grating sensor, which serves as a data acquisition probe. The inductive or optical grating sensor is in contact with both ends of the same generatrix on the outer circle of the valve seat. Thus, two displacement sensors 18 can be arranged side by side on the mounting base. The displacement sensors 18 can move up and down along the guide rail with the mounting base 9 to accommodate valve seats of different diameters.

[0037] It is easy to understand that there are two displacement sensors 18, each connected to the control unit. The control unit obtains the perpendicularity of the valve seat end face to the outer circle based on the maximum deviation of the values ​​displayed by the two displacement sensors during one revolution of the valve seat, the diameter of the valve seat 19, and the X-axis distance between the two displacement sensors. The control unit obtains the perpendicularity of the valve seat end face to the outer circle using the following formula: δ=σ·D / H Where δ: perpendicularity of the end face to the outer circle, σ: the maximum deviation of the values ​​displayed by the two displacement sensors during one rotation of the valve seat ring, D: the diameter of the valve seat ring, and H: the X-axis distance between the two displacement sensors.

[0038] The control unit is specifically a PLC controller or other type of controller. The controller has a display screen that can display the detected data and output the detection results.

[0039] It is easy to understand that a lateral movement mechanism 17 is provided on the inner side of the mounting base. The lateral movement mechanism 17 is connected to the displacement sensor 18. The position of the two displacement sensors 18 can be adjusted through the lateral movement mechanism 17, and the X-direction distance between the two displacement sensors can be adjusted. The X-direction refers to the direction along the axial direction of the valve seat ring.

[0040] The lateral movement mechanism 17 is fixed to the inside of the mounting base. In some examples, the lateral movement mechanism 17 is a linear electric cylinder. The housing part of the linear electric cylinder is fixed to the side of the mounting base 9. The output end of the linear electric cylinder is connected to the sensor mounting base 8. The displacement sensor 18 is installed through the sensor mounting base 8. The sensor mounting base 8 is provided with a first elongated hole and a round hole. The first elongated hole and the round hole are connected. After the probe of the displacement sensor passes through the round hole, fasteners such as fastening screws pass through both sides of the first elongated hole of the sensor mounting base 8 to stably clamp the displacement sensor 18.

[0041] Specifically, the sensor mounting base 8 can be an L-shaped structure, in which one side of the sensor mounting base is connected to the lateral movement mechanism, and the other side is used to install the displacement sensor. A first elongated hole 24 is provided on one side of the sensor mounting base 8. The first elongated hole 24 is set along the Y direction, which refers to the direction along the radial direction of the valve seat ring. The first elongated hole 24 passes through the sensor mounting base 8.

[0042] In other examples, refer to Figure 5 , Figure 6 As shown, the lateral movement mechanism 17 includes an X-axis block 25, which is arranged along the X-axis. Mounting blocks 27 are respectively arranged on the inner sidewalls of both sides of the mounting base 9. The mounting blocks are fixed to the inner side of the mounting base 9 by fasteners such as screws. The mounting block 27 has a mounting groove on the side facing the other mounting block, so that the two ends of the mounting block 27 form limiting ends respectively. The X-axis block 25 is installed through the mounting groove. One side of the X-axis block 25 is set higher than the mounting block 27. A second elongated hole 26 is provided on the side of the X-axis block 25 that is higher than the mounting block. A bolt 28 passes through the second elongated hole 26 from the upper side of the X-axis block 25 and abuts against the mounting block 27 to fix the position of the X-axis block 25. Loosening the bolt can adjust the X-axis position of the X-axis block 25 relative to the mounting base 9. After adjustment, it can be locked. The X-axis block is fixedly connected to one side of the sensor mounting base 8. Adjusting the position of the X-axis block 25 is to adjust the position of the sensor mounting base 8. Considering the stability of the X-axis block 25 setting, refer to Figure 7 As shown, the adjusting bolt 23 passes through the opening 29 of the mounting block from the front side of the X-direction block and is then fitted with a nut 30, which is connected to the X-direction block 25 via a threaded structure. After the position of the X-direction block 25 is adjusted, it is locked by the nut 20. The opening 39 of the mounting block is located on the front side of the mounting block 27. Thus, by adjusting the bolt 23 and the bolt 28 at the second elongated hole 26, the stability of the X-direction block 25 can be maintained after adjusting the X-direction position of the X-direction block 25 relative to the mounting base 9.

[0043] In addition, the support base 9 is provided with scale lines on the side wall of the mounting block 27. The scale lines are set along the X direction, which is conducive to the precise positioning of the X-direction block.

[0044] Considering the clamping of the valve seat ring, in this embodiment, the device further includes a clamping assembly. The clamping assembly is arranged opposite to the pad, and includes two sets of clamping assemblies. The two sets of clamping assemblies are respectively located on the side of the valve seat ring away from the pad 7. One end of the clamping assembly is connected to the V-shaped support platform. The clamping assembly includes a support base 5, which is fixed to the side of the triangular block. A clamping plate 13 is provided at the end of the support base 5 away from the worktable 3. The clamping plate 13 is connected to the locking block 14 through an elastic element such as a spring 15. A bolt 16 passes through the locking block 14 and is detachably connected to one end of the support base 5. The bolt 16 and the support base... 5. The connection is made by a threaded structure. The locking block 14 is provided with a through hole so that the bolt 16 can pass through. Loosening the bolt 16 can rotate the clamping plate 13. A cylindrical block is provided at the head of the rotating shaft 6. The cylindrical block can contact the end of the valve seat ring away from the pad 7 to clamp the valve seat ring 19. Loosening the connection between the clamping plate 13 and the support seat 5 can loosen the clamping on the valve seat ring 19, and the valve seat ring can be removed. The clamping plate 13 and the support seat 5 are tightened. The cylindrical block at the head of the rotating shaft 6 can then clamp the outer end face of the valve seat ring. The spring setting will not interfere with the rotation of the valve seat ring.

[0045] Specifically, the support base 5 is L-shaped (perpendicular to the plane of the worktable 3). The support base 5 is set from the side of the triangular block toward the side away from the worktable 3. The pressure plate 13 is L-shaped (parallel to the plane of the worktable 3) so that the pressure plate 13 is bent toward the center of the pad. The shorter side of the pressure plate 13 is detachably connected to the support base 5, and the longer side of the pressure plate is fixedly connected to the spring 15. The locking block 14 is also L-shaped so that one side of the locking block 14 is connected to the spring 15, and the other side is used for the passage of the rotating shaft 6.

[0046] Additionally, it is easy to understand that an adjustment block 12 is provided on the top of the worktable 3, and a locking component such as a locking bolt 11 passes through the adjustment block 12 and connects to the mounting base 9.

[0047] The device provided in this embodiment effectively presses the valve seat ring to ensure stability during rotation. The maximum deviation value of the displacement change between two points on the same generatrix can be obtained through at least two displacement sensors 18. This enables rapid detection of the perpendicularity between the valve seat ring end face and the outer circle, while ensuring detection accuracy. Overall, it improves detection efficiency and accuracy.

[0048] Example 2 This embodiment discloses a rapid detection method for the perpendicularity of the end face of an annular component to its outer circle. It employs the rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle described in Embodiment 1, which can be used to detect valve seats rings or other annular components. The method includes the following: A standard cylindrical square is used to calibrate the zero points of the two displacement sensors. After zero-point calibration, place the valve seat ring 19 to be tested, and bring the valve seat ring 19 to be tested into contact with the pad 7. The V-shaped support platform contacts the outer circular surface of the valve seat ring, and the ring component is pressed by the clamping assembly. Observe the changes in the readings of the two displacement sensors and record the corresponding data. Rotate the valve seat ring 19 one revolution, record the display data of the two displacement sensors 18 during the rotation of the valve seat ring one revolution, and obtain the maximum deviation value of the display values ​​of the two displacement sensors during the rotation of the valve seat ring one revolution. Based on the maximum deviation value of the display values ​​of the two displacement sensors during the rotation of the valve seat ring one revolution, the diameter of the valve seat ring, and the X-direction distance between the two displacement sensors, the perpendicularity of the end face of the annular component to the outer circle is obtained.

[0049] The formula is as follows: δ=σ·D / H Where δ: perpendicularity of the end face to the outer circle, σ: the maximum deviation of the values ​​displayed by the two displacement sensors during one rotation of the valve seat ring, D: the diameter of the valve seat ring, and H: the X-axis distance between the two displacement sensors.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle, characterized in that, The system includes a worktable supported by a base plate. A pad is provided on one side of the worktable to contact the end face of the valve seat ring. A V-shaped support is also provided on one side of the worktable, with a support surface that contacts the outer circular surface of the valve seat ring. A clamping assembly is positioned opposite the pad and is detachably connected to the V-shaped support to press the valve seat ring against the pad. A mounting base is slidably and lockably connected to the worktable. At least two displacement sensors are supported by the mounting base and are arranged side by side so that the displacement sensors can contact two positions on the same generatrix of the outer circle of the valve seat ring. The displacement sensors can obtain the deviation value between two points on the same generatrix of the outer circle of the valve seat ring.

2. The rapid detection device for the perpendicularity of the engine valve seat end face to the outer circle according to claim 1, characterized in that, Each of the displacement sensors is connected to the control unit. The control unit obtains the perpendicularity of the valve seat end face to the outer circle based on the maximum deviation of the values ​​displayed by the two displacement sensors during one rotation of the valve seat, the diameter of the valve seat, and the X-direction distance between the two displacement sensors.

3. The rapid detection device for the perpendicularity of the engine valve seat end face to the outer circle according to claim 1, characterized in that, Two displacement sensors are provided. A lateral moving mechanism is provided at the mounting base. The lateral moving mechanism is connected to the displacement sensors. The position of the two displacement sensors can be adjusted by the lateral moving mechanism, and the X-axis distance between the two displacement sensors can be adjusted.

4. The rapid detection device for the perpendicularity of the engine valve seat end face to the outer circle according to claim 3, characterized in that, The lateral movement mechanism is fixed to the inner side of the mounting base. The lateral movement mechanism is a linear electric cylinder. The output end of the linear electric cylinder is connected to the sensor mounting base. The displacement sensor is installed through the sensor mounting base. The sensor mounting base is equipped with an elongated hole to adjust the Y-axis distance between the two displacement sensors.

5. The rapid detection device for the perpendicularity of the end face of the engine valve seat ring to the outer circle according to claim 1, characterized in that, An adjustment block is provided on the top of the workbench, and a locking component passes through the adjustment block and connects to the mounting base.

6. The rapid detection device for the perpendicularity of the engine valve seat end face to the outer circle according to claim 1, characterized in that, A guide rail is provided on one side of the workbench, and the mounting base is slidably connected to the guide rail, which is located above the pad.

7. The rapid detection device for the perpendicularity of the end face of the engine valve seat ring to the outer circle according to claim 1, characterized in that, The clamping assembly includes a support base, which is fixed to the side of the V-shaped support platform. A clamping plate is provided at the end of the support base away from the worktable. The clamping plate is connected to the locking block through an elastic element. A bolt passes through the locking block. A cylindrical block is provided at the head of the rotating shaft. The cylindrical block can contact the end of the valve seat ring away from the pad to clamp the valve seat ring.

8. The rapid detection device for the perpendicularity of the end face of the engine valve seat ring to the outer circle according to claim 1, characterized in that, The V-shaped support platform includes a support block, which is fixedly connected to the worktable. Two triangular blocks are arranged on the upward side of the support block. The two triangular blocks face each other and are spaced apart. The inclined side of the triangular blocks forms a support surface that contacts the outer circular surface of the valve seat. The support block forms a recess between the two triangular blocks. The centerline of the V-shaped support platform and the centerline of the displacement sensor are set on the same plane.

9. A rapid detection device for the perpendicularity of the end face of an engine valve seat ring to its outer circle according to claim 1, characterized in that, The bottom of the workbench is supported by a base plate, and the base plate is supported by feet. The height of the feet is adjustable, and the workbench is equipped with a level.

10. A rapid method for detecting the perpendicularity of the end face of an annular component to its outer circle, characterized in that, A rapid detection device for the perpendicularity of the engine valve seat end face to the outer circle according to any one of claims 1-9 includes the following: A standard cylindrical square was used to calibrate the zero points of the two displacement sensors; After zero-point calibration, place the annular component, bring the annular component to be tested into contact with the pad, bring the V-shaped support platform into contact with the outer circular surface of the annular component, and press the annular component into place using the clamping assembly. Observe the changes in the readings of the two displacement sensors and record the corresponding data. Rotate the ring component one revolution and record the displayed data of the two displacement sensors during the rotation. Obtain the maximum deviation of the displayed values ​​of the two displacement sensors during the rotation. Based on the maximum deviation of the displayed values ​​of the two displacement sensors during the rotation, the diameter of the ring component, and the X-direction distance between the two displacement sensors, obtain the perpendicularity of the end face of the ring component to the outer circle.

Images