Cam detection tool

Abstract

The utility model discloses a cam detection tool, which belongs to the technical field of cam detection, and is characterized in that the cam detection tool comprises a test piece and a guide piece, the test piece comprises a shell, an inserting rod is embedded in the shell, a verification space is arranged in the shell, the guide piece comprises a connecting seat, and the connecting seat is provided with a through hole. At least two sliding grooves are formed in the connecting seat, a spring rod is arranged in each sliding groove, a guide rod is arranged on each spring rod, and the connecting seat is fixedly connected with the shell. The detection tool can ensure that the cam and the insertion rod are always at the same height, realizes rapid insertion detection, and is simple to operate and high in detection efficiency.

Description

Technical Field

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

[0002] The camshaft is a component in a piston engine. It consists of a cylindrical rod and several cams. It has the function of controlling the opening and closing of the intake and exhaust valves. Therefore, the produced cams need to be inspected and controlled. The existing inspection of the cams is to compare the cams with the templates. The inspection accuracy is not high. At the same time, the human factor has a great influence. It is easy to make mistakes in manual comparison, which affects the test results. Therefore, a cam inspection tool is needed. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of the utility model is to provide a cam detection tooling, which can ensure that the cam and the insertion rod are always at the same height, realize rapid insertion detection, simple operation and high detection efficiency.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a cam detection tool, including a test piece and a guide piece, the test piece includes a shell, an insertion rod is embedded in the shell, a verification space is set in the shell, the guide piece includes a connecting seat, at least two sliding grooves are provided on the connecting seat, and a spring rod is provided in each sliding groove, a guide rod is provided on the spring rod, and the connecting seat is fixedly connected to the shell.

[0005] In some embodiments, a square block is disposed at the bottom of the plunger.

[0006] In some embodiments, both the square block and the insertion rod are provided with ventilation holes.

[0007] In some embodiments, a sloped portion is disposed on the top of the guide rod, and a clamping portion is disposed below the sloped portion of the guide rod.

[0008] In some embodiments, a curved portion is provided at one end of the guide rod close to the connecting seat.

[0009] In some embodiments, three guide rods are provided.

[0010] In some embodiments, the top of the guide rod is higher than the top of the insertion rod.

[0011] In summary, the utility model has the following beneficial effects:

[0012] The utility model can not only guide the cam through the guide rod of the guide piece when testing the cam, so that the operator can quickly insert the cam into the test piece for testing, thereby improving the testing efficiency, but also can use the guide rod to clamp and limit the cam, thereby ensuring that the cam and the insertion rod of the test piece are always at the same height, thereby preventing the cam from falling due to human factors during insertion testing, thereby reducing the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the test piece of the utility model;

[0015] Figure 3 It is a schematic diagram of the overall structure of the guide member of the utility model;

[0016] Figure 4 It is a partial structural schematic diagram of the utility model.

[0017] In the figure: 1, test piece; 11, shell; 12, insertion rod; 13, square block; 14, verification space; 2, guide piece; 21, connecting seat; 22, guide rod; 221, inclined portion; 222, clamping portion; 223, arc portion; 23, spring rod. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4A cam detection tooling includes a test piece 1 and a guide piece 2. The test piece 1 includes a shell 11, an insertion rod 12 is embedded in the shell 11, and a verification space 14 is set in the shell 11. The guide piece 2 includes a connecting seat 21, and at least two slide grooves are provided on the connecting seat 21, and a spring rod 23 is provided in each slide groove, and a guide rod 22 is provided on the spring rod 23. The connecting seat 21 is fixedly connected to the shell 11. During use, the operator inserts the cam towards the insertion rod 12. During insertion, the cam contacts the guide rod 22 in advance. Under the guidance of the guide rod 22, the cam can always be maintained at the same height as the insertion rod 12, and will not be offset and collide with the insertion rod 12 due to the operator's hand shaking, resulting in detection failure. The cam is then inserted into the insertion rod 12. When the cam is inserted into the insertion rod 12, the guide rod 22 clamps the cam through the spring rod 23 to prevent the cam from slipping off the insertion rod 12 and reducing the detection efficiency. Finally, the operator can judge whether the cam meets the processing requirements by observing whether the cam can enter the verification space 14 and whether the outer wall of the cam is completely fitted with the inner wall of the verification space 14. If it is completely fitted, it is compliant; otherwise, it is judged as not compliant, that is, the detection is completed. The detection tooling is simple to operate and has high detection efficiency.

[0020] In some embodiments, a square block 13 is provided at the bottom of the insertion rod 12. The square block 13 can be convenient for the operator to clip onto the mounting seat adapted to the square block 13, so that the operator only needs to insert the cam for testing, eliminating the influence of the operator's hand grasping the test piece 1, ensuring that the test piece 1 does not move, and facilitating the operator to quickly insert the cam into the insertion rod 12, thereby improving the testing efficiency. The size of the square block 13 can also be used to detect whether the cam with a square axis meets the processing requirements. The size of the square block 13 can be adjusted as needed, and it has wide applicability and is easy to operate.

[0021] In some embodiments, the square block 13 and the insertion rod 12 are both provided with ventilation holes. When the operator inserts the cam into the insertion rod 12, the ventilation holes can discharge the air inside the cam, preventing the radius of the cam from fitting with the outer diameter of the insertion rod 12, thereby preventing the air inside the cam from being squeezed and preventing the cam from entering the verification space 14, resulting in detection failure.

[0022] In some embodiments, the top of the guide rod 22 is provided with an inclined portion 221, and the guide rod 22 is provided with a clamping portion 222 below the inclined portion 221. Before the operator inserts the cam into the insertion rod 12, the cam is in contact with the inclined portion 221 of the guide rod 22 in advance. The inclined portion 221 can guide a larger cam, so that the operator can detect more types of cams. When the cam is inserted from the inclined portion 221, the clamping portion 222 can clamp the cam through the spring rod 23, which is convenient for the operator to take a break and prevent the cam from falling. At the same time, the cam can be maintained at the same height as the insertion rod 12 to prevent the cam from being offset. The operation is simple and convenient.

[0023] In some embodiments, an arc surface 223 is provided at one end of the guide rod 22 close to the connection seat 21. The arc surface 223 is formed by grinding the curved surface, and there is a step between the arc surface 223 and the clamping portion 222, which not only enables the guide rod 22 to fit completely with the housing 11, but also allows the guide rod 22 to be restricted by the housing 11 through the step, preventing the cam from hitting the guide rod 22 and bending when the operator inserts the cam, thereby improving the service life of the tooling.

[0024] In some embodiments, three guide rods 22 are provided. The three guide rods 22 can limit the cam from three directions to prevent the cam from deviating when inserted into the insertion rod 12, further ensuring that the cam and the insertion rod 12 are at the same height, preventing the operator from scratching his fingers due to operating errors, and ensuring the safety of the operator.

[0025] In some embodiments, the top of the guide rod 22 is higher than the top of the insertion rod 12. The top of the guide rod 22 is three to five centimeters higher than the insertion rod 12, which can ensure that before the operator inserts the cam to be detected into the insertion rod 12, the cam is pre-contacted with the guide rod 22, so that the cam is first limited by the guide rod 22, ensuring that the cam and the insertion rod 12 are at the same height, making it easy for the operator to quickly insert the cam into the insertion rod 12, avoiding the cam and the insertion rod 12 from colliding and failing to be plugged in, and improving the detection efficiency.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A cam detection tool, characterized in that: The invention comprises a test piece (1) and a guide piece (2), wherein the test piece (1) comprises a shell (11), wherein an insertion rod (12) is embedded in the shell (11), and a verification space (14) is arranged in the shell (11); the guide piece (2) comprises a connecting seat (21), wherein at least two slide grooves are arranged on the connecting seat (21), and a spring rod (23) is arranged in each slide groove, and a guide rod (22) is arranged on the spring rod (23); and the connecting seat (21) is fixedly connected to the shell (11).

2. A cam detection tool according to claim 1, characterized in that: A square block (13) is provided at the bottom of the insertion rod (12).

3. A cam detection tool according to claim 2, characterized in that: The square block (13) and the insertion rod (12) are both provided with ventilation holes.

4. The cam detection tool according to claim 1, characterized in that: The top of the guide rod (22) is provided with an inclined portion (221), and the guide rod (22) is provided with a clamping portion (222) below the inclined portion (221).

5. The cam detection tool according to claim 1, characterized in that: An arcuate surface portion (223) is provided at one end of the guide rod (22) close to the connecting seat (21).

6. The cam detection tool according to claim 1, characterized in that: Three guide rods (22) are provided.

7. The cam detection tool according to claim 1, characterized in that: The top of the guide rod (22) is higher than the top of the insertion rod (12).

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