Crankshaft eccentricity automatic locating mechanism

Abstract

The utility model provides a crankshaft eccentricity automatic locating mechanism, which relates to the technical field of locating mechanisms and comprises a bottom plate, a first base, a second base and a third base are respectively arranged on the upper surface of the bottom plate, and first mounting plates are respectively and fixedly mounted on two sides of the second base. A position sensor used for detecting that a crankshaft is in place is fixedly installed in the first installation plate, a bearing seat is fixedly installed at the upper end of the third base, a swing arm is rotatably installed in the bearing seat, and a friction wheel used for keeping the angle of the crankshaft is rotatably installed at the upper end of the swing arm. A connecting protruding plate can be pulled to swing through an adjusting air cylinder, so that a friction wheel falls above a supporting wheel, the crankshaft body is fixed through cooperation with the supporting wheel, the locating effect can be ensured, and the situation that the locating effect is affected by the crankshaft body due to the fact that fixation is not firm enough in the locating process is avoided; and after fixing is completed, the position of the crankshaft body is detected through a photoelectric sensor and a position sensor, it is determined that the product is in place, skewing is prevented, and idle work is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning mechanisms, in particular to an automatic positioning mechanism for an eccentric crankshaft. Background Art

[0002] Because some parts of the crankshaft are eccentrically set, in order to ensure that the crankshaft can be used for subsequent processing or use, the crankshaft needs to be positioned. The main purpose of crankshaft positioning is to ensure that the crankshaft is in the correct position during the next process to ensure the normal operation of the mechanical system and avoid problems due to crankshaft position deviation, which may result in subsequent processing being unable to proceed smoothly. In order to avoid the impact of crankshaft deviation on use, we have made improvements and proposed a crankshaft eccentric automatic positioning mechanism, which can accurately determine the position of the crankshaft eccentricity and the main body, so that the crankshaft can be placed in subsequent equipment to ensure the quality of the crankshaft. Utility Model Content

[0003] The main purpose of the utility model is to provide an automatic eccentric positioning mechanism for a crankshaft, which can quickly detect whether the position of the crankshaft is deviated, thereby avoiding the problem that the subsequent crankshaft cannot match the clamping equipment.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The crankshaft eccentric automatic positioning mechanism comprises a bottom plate, wherein the upper surface of the bottom plate is respectively provided with a first base, a second base and a third base, wherein the first base and the second base are provided on one side of the bottom plate, and the third base is provided on the other side of the bottom plate;

[0006] A push cylinder for adjusting the crankshaft position is fixedly mounted on the upper end of the first base, first mounting plates are fixedly mounted on both sides of the second base, a position sensor for detecting whether the crankshaft is in position is fixedly mounted inside the first mounting plate, a bearing seat is fixedly mounted on the upper end of the third base, a swing arm is rotatably mounted inside the bearing seat, and a friction wheel for maintaining the crankshaft angle is rotatably mounted on the upper end of the swing arm.

[0007] Preferably, an SMC cylinder for fine-tuning the crankshaft position is fixedly mounted on the output end of the push cylinder, and a clamping seat is fixedly mounted on the output end of the SMC cylinder.

[0008] Preferably, a top material plate is clamped inside the clamping seat, and the top material plate body is provided with a crankshaft body.

[0009] Preferably, a support seat is fixedly mounted on the upper end of the second base, and support wheels for supporting the crankshaft are rotatably mounted at the four corners of the support seat.

[0010] Preferably, a second mounting plate is fixedly mounted on one side of the support seat, and a photoelectric sensor for detecting whether the crankshaft is displaced is fixedly mounted on the body of the second mounting plate, and the photoelectric sensor is close to one end of the crankshaft body.

[0011] Preferably, a swing foot is fixedly mounted on one side of the upper surface of the third base, and an adjusting cylinder is rotatably mounted inside the swing foot.

[0012] Preferably, a connecting convex plate is fixedly mounted on the outer side of the swing arm, and the connecting convex plate is rotatably connected to the output end of the regulating cylinder.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) By arranging position sensors on both sides of the crankshaft body, the eccentric position of the current crankshaft body can be detected to ensure that the placement angle of the crankshaft body meets the needs of subsequent processing. In order to ensure whether the crankshaft body is stable during rotation, a photoelectric sensor is arranged, and the sensing point of the photoelectric sensor is arranged at the end of the crankshaft body, so that the effect of the subsequent crankshaft body is guaranteed during use, and the position deviation during use is effectively avoided.

[0015] (2) The eccentric shaft is clamped by the parallel air claws driven by the double-axis cylinder, so that the eccentric shaft of the crankshaft is kept in the highest position (i.e. symmetrical on both sides). The pressure of the friction wheel can keep the crankshaft in the center and maintain the position accuracy after the centering mechanism is released.

[0016] (2) By starting the adjusting cylinder, the connecting cam can be pulled to swing, so that the swing arm can swing inside the bearing seat, and the friction wheel at the upper end of the swing arm can fall above the supporting wheel, and cooperate with the supporting wheel to fix the current crankshaft body, thereby ensuring the positioning effect and avoiding the crankshaft body affecting the positioning effect due to insufficient fixation during the positioning process. After the fixation is completed, the position of the crankshaft body is detected using a photoelectric sensor and a position sensor to achieve high-precision positioning operation. Compared with the existing technology, not only the accuracy of positioning is improved, but also the efficiency of positioning is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-section structure at AA in the middle;

[0021] Figure 5 for Figure 1 The enlarged structural diagram at a in the middle.

[0022] In the figure: 1. bottom plate; 2. first base; 201. push cylinder; 202. SMC cylinder; 203. clamping seat; 204. ejector plate; 3. second base; 301. first mounting plate; 302. position sensor; 303. support seat; 304. support wheel; 305. second mounting plate; 306. photoelectric sensor; 4. third base; 401. bearing seat; 402. swing arm; 403. connecting convex plate; 404. adjusting cylinder; 405. friction wheel; 406. swing foot seat; 5. crankshaft body. DETAILED DESCRIPTION

[0023] The following will be combined with 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 of 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.

[0024] like Figures 1 to 5 As shown, the crankshaft eccentric automatic positioning mechanism includes a base plate 1, and a first base 2, a second base 3 and a third base 4 are respectively arranged on the upper surface of the base plate 1. The first base 2 and the second base 3 are arranged on one side of the base plate 1, and the third base 4 is arranged on the other side of the base plate 1;

[0025] A push cylinder 201 for adjusting the crankshaft position is fixedly installed on the upper end of the first base 2, first mounting plates 301 are fixedly installed on both sides of the second base 3, a position sensor 302 for detecting the position of the crankshaft is fixedly installed inside the first mounting plate 301, a bearing seat 401 is fixedly installed on the upper end of the third base 4, a swing arm 402 is rotatably installed inside the bearing seat 401, and a friction wheel 405 for maintaining the crankshaft angle is rotatably installed on the upper end of the swing arm 402.

[0026] In this embodiment, an SMC cylinder 202 for fine-tuning the crankshaft position is fixedly installed at the output end of the push cylinder 201, and a clamping seat 203 is fixedly installed at the output end of the SMC cylinder 202. The clamping seat 203 clamps a push plate 204 inside, and the push plate 204 is provided with a crankshaft body 5.

[0027] The crankshaft can be adjusted to the desired positioning position by starting the push cylinder 201. In order to further improve the positioning accuracy, after the push cylinder 201 completes the pushing, the SMC cylinder 202 is started for further adjustment to ensure that the corresponding position of the crankshaft can be positioned.

[0028] In this embodiment, a support seat 303 is fixedly installed on the upper end of the second base 3, and support wheels 304 for supporting the crankshaft are rotatably installed at the four corners of the support seat 303. A second mounting plate 305 is fixedly installed on one side of the support seat 303, and a photoelectric sensor 306 for detecting whether the crankshaft is displaced is fixedly installed on the body of the second mounting plate 305. The photoelectric sensor 306 is close to one end of the crankshaft body 5.

[0029] By arranging position sensors 302 on both sides of the crankshaft body 5, the eccentric position of the current crankshaft body 5 can be detected to ensure that the placement angle of the crankshaft body 5 meets the needs of subsequent processing. In order to ensure whether the crankshaft body 5 is stable during rotation, a photoelectric sensor 306 is arranged, and the sensing point of the photoelectric sensor 306 is arranged at the end of the crankshaft body 5, so that the displacement of the end of the crankshaft body 5 can be recorded when the crankshaft body 5 rotates. Through the above structure, the present application can quickly find the position of the crankshaft body 5, so that the effect of the subsequent crankshaft body 5 is guaranteed during use, and the position deviation during use is effectively avoided.

[0030] In this embodiment, a swing foot 406 is fixedly installed on one side of the upper surface of the third base 4, and an adjusting cylinder 404 is rotatably installed inside the swing foot 406. A connecting protrusion 403 is fixedly installed on the outer side of the swing arm 402, and the connecting protrusion 403 is rotatably connected to the output end of the adjusting cylinder 404.

[0031] By starting the adjusting cylinder 404, the connecting convex plate 403 can be pulled to swing, so that the swing arm 402 can swing inside the bearing seat 401, and the friction wheel 405 on the upper end of the swing arm 402 can fall on the support wheel 304, and cooperate with the support wheel 304 to fix the current crankshaft body 5, so as to ensure the positioning effect and avoid the crankshaft body 5 affecting the positioning effect due to insufficient fixation during the positioning process. After the fixation is completed, the position of the crankshaft body 5 is detected by the photoelectric sensor 306 and the position sensor 302 to achieve high-precision positioning operation. Compared with the existing technology, not only the accuracy of positioning is improved, but also the efficiency of positioning is improved.

[0032] The working principle of the crankshaft eccentric automatic positioning mechanism:

[0033] When in use, first place the crankshaft body 5 on the ejector plate 204, and place the crankshaft body 5 on the supporting wheels 304, then start the push cylinder 201 to adjust the crankshaft to the desired location, and after the push cylinder 201 completes the pushing, start the SMC cylinder 202 for further adjustment to ensure that the detected position is the desired position;

[0034] Then, by starting the regulating cylinder 404, the connecting convex plate 403 can be pulled to swing, so that the swing arm 402 can swing inside the bearing seat 401, and the friction wheel 405 at the upper end of the swing arm 402 can fall on the support wheel 304, and cooperate with the support wheel 304 to fix the current crankshaft body 5. After fixing, the photoelectric sensor 306 and the position sensor 302 are used to detect the position of the crankshaft body 5;

[0035] After finding the position angle, the regulating cylinder 404 is started again to reset the friction wheel 405 so as to facilitate subsequent processing of the crankshaft body 5 .

[0036] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A crankshaft eccentric automatic positioning mechanism, comprising a base plate (1), characterized in that: A first base (2), a second base (3) and a third base (4) are respectively arranged on the upper surface of the bottom plate (1); the first base (2) and the second base (3) are arranged on one side of the bottom plate (1), and the third base (4) is arranged on the other side of the bottom plate (1); A push cylinder (201) for adjusting the position of the crankshaft is fixedly mounted on the upper end of the first base (2); first mounting plates (301) are fixedly mounted on both sides of the second base (3); a position sensor (302) for detecting the position of the crankshaft is fixedly mounted inside the first mounting plate (301); a bearing seat (401) is fixedly mounted on the upper end of the third base (4); a swing arm (402) is rotatably mounted inside the bearing seat (401); and a friction wheel (405) for maintaining the angle of the crankshaft is rotatably mounted on the upper end of the swing arm (402).

2. The crankshaft eccentric automatic positioning mechanism according to claim 1, characterized in that: An SMC cylinder (202) for fine-tuning the crankshaft position is fixedly mounted on the output end of the push cylinder (201), and a clamping seat (203) is fixedly mounted on the output end of the SMC cylinder (202).

3. The crankshaft eccentric automatic positioning mechanism according to claim 2, characterized in that: The clamping seat (203) clamps a top material plate (204) inside, and the top material plate (204) is provided with a crankshaft body (5).

4. The crankshaft eccentric automatic positioning mechanism according to claim 1, characterized in that: A support seat (303) is fixedly mounted on the upper end of the second base (3), and support wheels (304) for supporting the crankshaft are rotatably mounted at the four corners of the support seat (303).

5. The crankshaft eccentric automatic positioning mechanism according to claim 4, characterized in that: A second mounting plate (305) is fixedly mounted on one side of the support seat (303), and a photoelectric sensor (306) for detecting whether the crankshaft is displaced is fixedly mounted on the body of the second mounting plate (305), wherein the photoelectric sensor (306) is close to one end of the crankshaft body (5).

6. The crankshaft eccentric automatic positioning mechanism according to claim 1, characterized in that: A swing foot (406) is fixedly mounted on one side of the upper surface of the third base (4), and an adjusting cylinder (404) is rotatably mounted inside the swing foot (406).

7. The crankshaft eccentric automatic positioning mechanism according to claim 6, characterized in that: A connecting convex plate (403) is fixedly mounted on the outer side of the swing arm (402), and the connecting convex plate (403) is rotatably connected to the output end of the regulating cylinder (404).

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