Camshaft angle detection device

Abstract

The utility model discloses a camshaft angle detection device, which relates to the technical field of camshaft angle detection, and includes a detection workbench, wherein the detection workbench is in a stepped structure, an angle display component is provided at one end of the detection workbench located at a high place, a positioning cavity is provided at one end of the detection workbench located at a low place, the bottom end of the camshaft workpiece is fixed in the positioning cavity by a limit clamping mechanism, the upper end of the camshaft workpiece extends upward and is fixedly sleeved with a clamping indicating component, and the end of the clamping indicating component away from the camshaft workpiece is provided at one end of the detection workbench at a high place and contacts with the angle display component. The utility model effectively solves the problems of insufficient accuracy, complex operation, poor applicability and non-intuitive readings in the prior art through the innovative design of key components such as the detection workbench, the limit clamping mechanism, and the clamping indicating component, and greatly improves the accuracy, efficiency and reliability of camshaft angle detection.

Description

Technical Field

[0001] The utility model relates to the technical field of camshaft angle detection, in particular to a camshaft angle detection device. Background Art

[0002] The camshaft is a key component of the engine. It controls the opening and closing of the intake and exhaust valves by coordinating with the movement of the piston, directly affecting the performance and efficiency of the engine. Therefore, it is crucial to accurately detect the angle of the camshaft to ensure the normal operation and long life of the engine.

[0003] At present, there are some shortcomings in the commonly used camshaft angle detection methods and devices. For example, CN108050918B discloses a device for detecting the angle between the camshaft positioning groove and the functional groove, which includes a gauge body, a positioning block and a detection block. By judging whether the detection block can be inserted into the standard functional groove and the functional groove of the camshaft to be tested, it is judged whether the angle of the product is qualified. Although the device improves the detection efficiency and simplifies the operation to a certain extent, it still has the following defects:

[0004] 1. Insufficient detection accuracy: Due to its reliance on mechanical fit, the detection accuracy of the device is affected by manufacturing and assembly tolerances, which may lead to measurement errors.

[0005] 2. Complex operation: The positioning block and detection block need to be manually operated, which has complicated steps, increases the difficulty and time cost of operation, and manual operation is prone to errors.

[0006] 3. Poor applicability: The device is designed for camshafts of specific models and specifications. Different gauge bodies need to be replaced for camshafts of different specifications, which lacks versatility.

[0007] 4. The reading is not intuitive: The angle is determined by judging whether the detection block can be inserted into the functional slot. The reading process is not intuitive and it is easy to make mistakes. Utility Model Content

[0008] The problem to be solved by the utility model is to provide an improved camshaft angle detection device, which not only improves the detection accuracy and simplifies the operation steps, but also provides a more intuitive reading method, thereby better meeting the detection requirements of camshafts of different specifications.

[0009] In order to solve the above problems, the utility model provides a camshaft angle detection device, including a detection workbench, which has a stepped structure, an angle display component is provided at one end of the detection workbench located at a higher place, and a positioning cavity is provided at one end of the detection workbench located at a lower place, the bottom end of the camshaft workpiece is fixed in the positioning cavity by a limiting clamping mechanism, the upper end of the camshaft workpiece extends upward and is fixedly sleeved with a clamping indicating component, and the end of the clamping indicating component away from the camshaft workpiece is arranged at one end of the detection workbench at a higher place and contacts with the angle display component.

[0010] Preferably, an arc-shaped positioning cavity is provided at one end of the detection workbench located at a higher position, the angle display component is sleeved in the arc-shaped positioning cavity, and both ends of the angle display component extend toward the outside of the detection workbench.

[0011] Preferably, the angle display component comprises an arc-shaped positioning card plate, the arc-shaped positioning card plate is sleeved in the arc-shaped positioning cavity groove, and an angle display scale plate is fitted on the top of the arc-shaped positioning card plate.

[0012] Preferably, a threaded positioning groove which is connected to the positioning cavity is formed at the side end of the detection workbench, and the limiting clamping mechanism includes a U-shaped clamp, which is clamped at the bottom of the camshaft workpiece, and a fixed recessed clamp is provided at the side end of the U-shaped clamp. The U-shaped clamp and the fixed recessed clamp are arranged in the positioning cavity, and the threaded tightening piece is threadedly connected to the threaded positioning groove and extends forward through the positioning cavity to tighten the fixed recessed clamp.

[0013] Preferably, the threaded tightening member includes a push rod, a threaded connecting protrusion is fixedly provided on the outer edge of the push rod, the threaded connecting protrusion is threadedly connected to the threaded positioning groove, a push block is fixedly provided at the front end of the push rod, a top groove is provided on the inner edge of the fixed recessed clamp, the push block is inserted into the top groove, and the top block presses against the top groove so that the fixed recessed clamp presses against the U-shaped clamp from the side end, thereby enabling the U-shaped clamp to clamp the bottom of the camshaft workpiece.

[0014] Preferably, the clamping indicating component comprises a clamping portion and an indicating piece fixedly arranged at a side end of the clamping portion, and the indicating piece is in a needle-shaped structure.

[0015] Preferably, the clamping portion includes a clamping body, a clamping cavity is provided at the center of the clamping body, the clamping cavity is sleeved on the upper end of the camshaft workpiece, and a left-right through-going clearance cavity is provided at the front end of the clamping body. The locking screw passes through the clearance cavity from one side and extends forward, and the lock nut is threadedly locked with the locking screw from the other end of the clearance cavity, so that the clamping body clamps the upper end of the camshaft workpiece.

[0016] Compared with the prior art, the utility model has the following beneficial technical effects:

[0017] 1. Improve detection accuracy:

[0018] The utility model clamps and fixes the camshaft workpiece from below through a limit clamping mechanism, and clamps and fixes the camshaft workpiece from both sides through a clamping indicating component. The camshaft workpiece is clamped in all directions through the limit clamping mechanism and the clamping indicating component, thereby ensuring its stability during the detection process, thereby greatly improving the detection accuracy. The positioning card plate of the angle display component is sleeved on the arc-shaped positioning cavity groove at one end of the detection workbench located at a high position. At the same time, the angle display component can more accurately display the angle reading through the cooperation of the arc-shaped positioning card plate and the angle display ruler, thereby reducing the measurement error caused by the mechanical cooperation error.

[0019] 2. Simplify the operation steps:

[0020] The utility model uses a threaded jacking piece to make the fixing and clamping process simpler, without frequent manual operation, reducing the operation steps and time cost. The stepped structure of the detection workbench makes positioning and reading more intuitive, reducing the difficulty of operation.

[0021] 3. Improve versatility:

[0022] The detection workbench and limit clamping mechanism of the utility model can be applied to camshafts of different specifications and models without replacing different inspection fixture bodies, thereby increasing the versatility and flexibility of the device. The clamping indicator component can be adapted to camshafts of different specifications by simple adjustment, thereby improving the adaptability of the detection device.

[0023] 4. Reading is more intuitive:

[0024] The utility model provides an intuitive angle reading method by clamping the indicating member of the indicating member and the angle display scale plate of the angle display member, thereby avoiding misjudgment. The indicating member is a needle-shaped structure with a clear indicating direction, which is convenient for the operator to quickly and accurately read the detection angle.

[0025] In summary, the utility model effectively solves the problems of insufficient accuracy, complicated operation, poor applicability and non-intuitive readings in the prior art through innovative designs of key components such as the detection workbench, limit clamping mechanism, and clamping indication components, thereby greatly improving the accuracy, efficiency and reliability of camshaft angle detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the camshaft angle detection device.

[0027] Figure 2 This is the assembly drawing of the camshaft angle detection device.

[0028] Figure 3 It is a top view of the camshaft angle detection device.

[0029] Figure 4 for Figure 3 Cross-section along BB.

[0030] Figure 5 for Figure 4 Cross-section along CC.

[0031] Figure 6 for Figure 5 Section along DD.

[0032] In the figure: 1-detection workbench, 101-positioning cavity, 102-arc-shaped positioning cavity groove, 103-threaded positioning groove, 2-angle display component, 201-arc-shaped positioning clamping plate, 202-angle display scale plate, 3-limit clamping mechanism, 301-U-shaped clamp, 302-fixed concave clamp, 303-threaded top tightening member, 304-top rod, 305-threaded connection protrusion, 306-top block, 307-top groove, 4-camshaft workpiece, 5-clamping indication component, 501-clamping part, 502-indicator, 503-clamping body, 504-clamping cavity groove, 505-yielding cavity groove, 506-locking threaded member, 507-lock nut. DETAILED DESCRIPTION

[0033] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

[0034] Reference Figure 1-Figure 6 As shown, a camshaft angle detection device includes a detection workbench 1, the detection workbench 1 is a stepped structure, the detection workbench 1 is provided with an angle display component 2 at one end located at a high position, and a positioning cavity 101 is provided at one end located at a low position, and the bottom end of the camshaft workpiece 4 is fixed in the positioning cavity 101 by a limit clamping mechanism 3, the camshaft workpiece is clamped and fixed from below by the limit clamping mechanism 3, and the clamping indicator component 5 is clamped and fixed from both sides of the camshaft workpiece, and the camshaft workpiece is clamped in all directions by the limit clamping mechanism and the clamping indicator component, so as to ensure its stability during the detection process, thereby greatly improving the detection accuracy. The upper end of the camshaft workpiece 4 extends upward and is fixedly sleeved with a clamping indicator component 5, and the end of the clamping indicator component 5 away from the camshaft workpiece 4 is arranged at one end at a high position of the detection workbench 1 and contacts with the angle display component 2.

[0035] The detection workbench 1 and the limit clamping mechanism 3 can be applied to camshafts of different specifications and models without replacing different inspection fixture bodies, which increases the versatility and flexibility of the device. The clamping indicator component 5 can be adapted to camshafts of different specifications by simple adjustment, which improves the adaptability of the detection device.

[0036] An arc-shaped positioning cavity 102 is formed at one end of the detection workbench 1 located at a high position, and the angle display component 2 is sleeved in the arc-shaped positioning cavity 102 . Both ends of the angle display component 2 extend toward the outside of the detection workbench 1 .

[0037] The angle display component 2 includes an arc-shaped positioning card plate 201, which is sleeved in the arc-shaped positioning cavity groove 102, and an angle display scale plate 202 is fitted on the top of the arc-shaped positioning card plate 201. The positioning card plate 201 of the angle display component 2 is sleeved in the arc-shaped positioning cavity groove 102 at one end of the detection workbench 1 located at a high position. At the same time, the angle display component 2 can more accurately display the angle reading through the cooperation of the arc-shaped positioning card plate 201 and the angle display scale plate 202, thereby reducing the measurement error caused by the mechanical cooperation error.

[0038] The side end of the detection workbench 1 is provided with a threaded positioning groove 103 that is interlinked with the positioning cavity 101. The position limiting clamping mechanism 3 includes a U-shaped clamp 301, which is clamped at the bottom of the camshaft workpiece 4. The side end of the U-shaped clamp 301 is provided with a fixed recessed clamp 302. The U-shaped clamp 301 and the fixed recessed clamp 302 are arranged in the positioning cavity 101. The threaded pressing member 303 is threadedly connected in the threaded positioning groove 103 and extends forward through the positioning cavity 101 to tighten the fixed recessed clamp 302. The threaded pressing member 303 makes the fixing and clamping process simpler, without frequent manual operation, reducing the operation steps and time cost. The stepped structure of the detection workbench 1 makes positioning and reading more intuitive and reduces the difficulty of operation.

[0039] The threaded tightening member 303 includes a push rod 304, a threaded connection protrusion 305 is fixedly provided on the outer edge of the push rod 304, and the threaded connection protrusion 305 is threadedly connected to the threaded positioning groove 103. A push block 306 is fixedly provided at the front end of the push rod 304. A top groove 307 is opened on the inner edge of the fixed recessed clamp 302. The push block 306 is inserted into the top groove 307. The top block 306 presses against the top groove 307, so that the fixed recessed clamp 302 presses against the U-shaped clamp 301 from the side end, so that the U-shaped clamp 301 clamps the bottom of the camshaft workpiece 4.

[0040] The clamping indicating component 5 includes a clamping portion 501 and an indicating member 502 fixedly disposed at the side end of the clamping portion 501, and the indicating member 502 is in a needle-like structure. The contact between the indicating member 502 of the clamping indicating component 5 and the angle display scale plate 202 of the angle display component 2 provides an intuitive angle reading method and avoids misjudgment. The indicating member 502 is in a needle-like structure, and the indicating direction is clear, which is convenient for the operator to quickly and accurately read the detection angle.

[0041] The clamping portion 501 includes a clamping body 503, a clamping cavity 504 is opened at the center of the clamping body 503, and the clamping cavity 504 is sleeved on the upper end of the camshaft workpiece 4. The front end of the clamping body 503 is opened with a clearance cavity 505 that passes through the clearance cavity 505 from one side and extends forward. The locking screw 506 passes through the clearance cavity 505 from one side and extends forward. The lock nut 507 is threadedly locked with the locking screw 506 from the other end of the clearance cavity 505, so that the clamping body 503 clamps the upper end of the camshaft workpiece 4.

[0042] In order to facilitate understanding of the above technical solution of the present invention, the above technical solution of the present invention is described in detail below through specific usage methods.

[0043] The specific working process is as follows: first, the operator sleeves the positioning card plate 201 of the angle display component 2 on the arc-shaped positioning cavity 102 at the high end of the detection workbench 1; then, the camshaft workpiece 4 is placed in the positioning cavity 101 opened at the low end of the detection workbench 1, and the disc surface of the camshaft workpiece 4 is completely in contact with the plane of the detection workbench 1; then, the U-shaped clamp 301 and the fixed recessed clamp 302 of the limit clamping mechanism 3 are positioned in the cavity 101, and the threaded connection protrusion 305 of the push rod 304 of the threaded tightening member 303 is threadedly fixed with the threaded positioning groove 103, and the top block 306 at the front end of the push rod 304 presses against the top groove 307, so that the fixed recessed clamp 302 presses against the U-shaped clamp 301 from the side end, so that the U-shaped clamp 301 clamps the bottom of the camshaft workpiece 4; finally, the clamping cavity 504 on the clamping portion 501 of the clamping indicating component 5 is sleeved on the camshaft At the upper end of the workpiece 4, the locking screw 506 passes through the clearance groove 505 of the clamping body 503 from one side, and the lock nut 507 is threadedly locked with the locking screw 506 from the other end of the clearance groove 505, so that the clamping body 503 clamps the upper end of the camshaft workpiece 4, and the indicator 502 at the side end of the clamping part 501 contacts the angle display scale 202 of the angle display component 2. The direction indicated by the indicator 502 is the relative direction of the four directions, so as to accurately read the detection angle.

[0044] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0045] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0046] The above description is only a specific embodiment of the utility model, so that those skilled in the art can understand or implement the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown herein, but should conform to the widest range consistent with the principles and novel features of the utility model described herein.

Claims

1. A camshaft angle detection device, comprising a detection workbench (1), characterized in that: The detection workbench (1) has a stepped structure. An angle display component (2) is arranged at one end of the detection workbench (1) located at a higher position. A positioning cavity (101) is provided at one end of the detection workbench (1) located at a lower position. The bottom end of the camshaft workpiece (4) is fixed in the positioning cavity (101) by means of a limit clamping mechanism (3). The upper end of the camshaft workpiece (4) extends upward and is fixedly sleeved with a clamping indicating component (5). The end of the clamping indicating component (5) away from the camshaft workpiece (4) is arranged at one end of the detection workbench (1) at a higher position and is in contact with the angle display component (2).

2. The camshaft angle detection device according to claim 1, characterized in that: An arc-shaped positioning cavity (102) is provided at one end of the detection workbench (1) located at a high position, the angle display component (2) is sleeved in the arc-shaped positioning cavity (102), and both ends of the angle display component (2) extend toward the outside of the detection workbench (1).

3. The camshaft angle detection device according to claim 2, characterized in that: The angle display component (2) comprises an arc-shaped positioning card plate (201), the arc-shaped positioning card plate (201) is sleeved in the arc-shaped positioning cavity (102), and an angle display scale plate (202) is fitted on the top end of the arc-shaped positioning card plate (201).

4. The camshaft angle detection device according to claim 1, characterized in that: A threaded positioning groove (103) which is in communication with the positioning cavity (101) is formed at a side end of the detection workbench (1); the position-limiting clamping mechanism (3) comprises a U-shaped clamp (301); the U-shaped clamp (301) is clamped to the bottom of the camshaft workpiece (4); a fixed recessed clamp (302) is formed at the side end of the U-shaped clamp (301); the U-shaped clamp (301) and the fixed recessed clamp (302) are arranged in the positioning cavity (101); and a threaded pressing member (303) is threadedly connected to the threaded positioning groove (103) and extends forward through the positioning cavity (101) to press against the fixed recessed clamp (302).

5. The camshaft angle detection device according to claim 4, characterized in that: The threaded clamping member (303) comprises a push rod (304), the outer edge of which is fixedly provided with a threaded connection protrusion (305), the threaded connection protrusion (305) being threadedly connected to the threaded positioning groove (103), a push block (306) being fixedly provided at the front end of the push rod (304), the inner edge of the fixed recessed clamp (302) being provided with a top groove (307), the push block (306) being inserted into the top groove (307), and the top block (306) being pressed against the top groove (307), so that the fixed recessed clamp (302) is pressed against the U-shaped clamp (301) from the side end, so that the U-shaped clamp (301) clamps the bottom of the camshaft workpiece (4).

6. The camshaft angle detection device according to claim 1, characterized in that: The clamping indicating component (5) comprises a clamping portion (501) and an indicating piece (502) fixedly arranged at a side end of the clamping portion (501); the indicating piece (502) is in a needle-shaped structure.

7. The camshaft angle detection device according to claim 6, characterized in that: The clamping portion (501) comprises a clamping body (503), a clamping cavity (504) is provided at the center of the clamping body (503), the clamping cavity (504) is sleeved on the upper end of the camshaft workpiece (4), and a left-to-right through-hole groove (505) is provided at the front end of the clamping body (503), a locking screw (506) passes through the right-to-left hole groove (505) from one side and extends forward, and a lock nut (507) is threadedly locked with the locking screw (506) from the other end of the right-to-left hole groove (505), so that the clamping body (503) clamps the upper end of the camshaft workpiece (4).

Images