Cleaning device for camshaft

Abstract

The utility model discloses a cleaning device for a camshaft in the field of part cleaning, which comprises a transfer mechanism, an air blowing mechanism and a spin-drying mechanism, the transfer mechanism comprises a support seat arranged between the air blowing mechanism and the spin-drying mechanism in a sliding manner, the air blowing mechanism comprises fans arranged outside two ends of the support seat, and the fans are arranged on the support seat. The spin-drying mechanism comprises a spindle motor and a tail end support which are coaxially arranged, and an ejector rod which can rotate around the axis of the tail end support and move along the axis of the tail end support is arranged on the tail end support. Liquid cleaning on the surface of the cam shaft is divided into two procedures, firstly, the fan of the blowing mechanism is used for blowing and drying the two ends of the cam shaft, then the cam shaft is transferred to the spin-drying mechanism through the transfer mechanism, and the spin-drying mechanism fixes the two ends of the cam shaft and drives the cam shaft to rotate at a high speed. Liquid on the surface of the cam shaft is spin-dried through centrifugal force, so that the comprehensive cleaning effect of the cam shaft is achieved, and the influence on follow-up detection caused by insufficient cleaning is avoided.

Description

Technical Field

[0001] The utility model relates to the field of parts cleaning, in particular to a cleaning device for a camshaft. Background Art

[0002] The camshaft generally needs to be cleaned after machining, and there will be a large amount of liquid residue on the surface after cleaning. If it is not cleaned in time, it will affect the subsequent detection and cause inaccurate detection results. At present, it is generally used to blow dry the product surface with an air gun manually. The disadvantage is that there are places that cannot be blown by manual blowing, and the liquid is blown everywhere, polluting the environment. In addition, there are also some special camshaft cleaning devices in the prior art, which can complete the cleaning and drying of the cam at the same time. For example, the patent document with the publication number CN209886262U discloses a solution that uses a left and right reciprocating nozzle to cooperate with the rotation of the camshaft to achieve the cleaning and drying of the camshaft. The disadvantage is that the camshaft has been fixed through the center holes at both ends before cleaning, resulting in the inability to clean and dry the center holes later, especially some camshafts with deep blind holes at the ends. The existing solutions cannot realize the cleaning and drying operations of the deep blind holes at the same time. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies in the existing camshaft cleaning and drying methods, the technical problem to be solved by the utility model is to provide a cleaning device for the camshaft which can improve the surface liquid cleaning quality.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A cleaning device for a camshaft comprises a transfer mechanism, an air blowing mechanism and a spin-drying mechanism arranged on a support platform, wherein the transfer mechanism comprises a support base slidably arranged between the air blowing mechanism and the spin-drying mechanism, the air blowing mechanism comprises fans arranged outside both ends of the support base, and the spin-drying mechanism comprises a coaxially arranged main shaft motor and a tail end support, wherein the tail end support is provided with a push rod which can rotate around its axis and move along its axis, and when the push rod is extended, the two ends of the camshaft can be pressed against the rotating shaft of the main shaft motor and the push rod of the tail end support respectively.

[0006] Furthermore, the transfer mechanism also includes a screw rod rotatably arranged on the support platform and a driving motor driving the screw rod to rotate, and the support seat is slidably arranged on the support platform and is threadedly connected to the screw rod.

[0007] Furthermore, a hole cleaning mechanism is provided between the air blowing mechanism and the spin-drying mechanism, and the hole cleaning mechanism comprises a telescopic rod and a cleaning brush provided on the telescopic end of the telescopic rod.

[0008] Furthermore, the tail end support includes a fixed seat and a sleeve slidably arranged in the middle of the fixed seat, the push rod is rotatably arranged in the sleeve, and a telescopic cylinder is provided at one end of the fixed seat away from the spindle motor, and the sleeve is connected to the telescopic end of the telescopic cylinder.

[0009] Furthermore, it also includes a sealing ring detection mechanism, which includes a pressure probe that can be retracted downward, and the number and position of the pressure probes correspond to the number and position of the sealing rings on the camshaft.

[0010] Furthermore, the sealing ring detection mechanism includes a mounting frame fixed on the top of the tail end support and a lifting rod arranged on the top of the mounting frame, a detection head with a pressure probe is arranged at the lifting end of the lower end of the lifting rod, and the detection head is provided with a connector for connecting to an external controller.

[0011] The beneficial effect of the utility model is that the cleaning of the liquid on the surface of the camshaft is divided into two processes. First, the fan of the blowing mechanism is used to blow and dry the two ends of the camshaft, and then the camshaft is transferred to the drying mechanism through the transfer mechanism. The drying mechanism fixes the two ends of the camshaft and drives the camshaft to rotate at a high speed, and uses centrifugal force to dry the liquid on the surface of the camshaft, thereby achieving a comprehensive cleaning effect on the camshaft and avoiding the impact of insufficient cleaning on subsequent detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the sealing ring detection mechanism of the utility model.

[0014] Marked in the figure are, 1-support platform, 2-transfer mechanism, 3-blowing mechanism, 4-drying mechanism, 5-hole cleaning mechanism, 6-sealing ring detection mechanism, 7-camshaft, 8-sealing ring, 21-support seat, 22-screw, 23-drive motor, 31-blower, 41-spindle motor, 42-tail end support, 43-lift rod, 44-fixed seat, 45-sleeve, 46-telescopic cylinder, 51-telescopic rod, 52-cleaning brush, 61-mounting frame, 62-lifting rod, 63-detection head, 64-pressure probe, 65-connector. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] It should be noted that if there are directional indication terms in the present invention, such as up, down, left, right, front, and back directions and orientation terms, they are for the purpose of facilitating the description of the relative position relationship between components, and are not for the absolute position of the related components or the position relationship between components. They are only used to explain the relative position relationship and movement of the components in a certain posture. If the specific posture changes, the directional indication will also change accordingly. If there are terms related to quantity in the present invention, such as "multiple", "multiple", "several", etc., they specifically refer to two or more.

[0017] like Figure 1 As shown, the cleaning device for the camshaft provided by the utility model comprises a transport mechanism 2, a blowing mechanism 3 and a drying mechanism 4 arranged on a support platform 1, wherein the transport mechanism 2 comprises a support seat 21 slidably arranged between the blowing mechanism 3 and the drying mechanism 4, the blowing mechanism 3 comprises a fan 31 arranged outside the two ends of the support seat 21, and the drying mechanism 4 comprises a coaxially arranged main shaft motor 41 and a tail end support 42, wherein the tail end support 42 is provided with a push rod 43 which can rotate around its axis and move along its axis, and when the push rod 43 is extended, the two ends of the camshaft 7 can be respectively pressed against the rotating shaft of the main shaft motor 41 and the push rod 43 of the tail end support 42. The support seat 21 comprises two V-shaped card plates, and the camshaft 7 is placed on the two card plates. The height of the fan 31 is preferably consistent with the height of the camshaft 7 when it is placed on the support seat 21, so as to ensure that the fan 31 can face the center holes at both ends of the camshaft 7. The rotating shaft of the spindle motor 41 and the end of the push rod 43 are both conical structures, matching the center holes at both ends of the camshaft 7 to increase the friction with the camshaft 7 and ensure that the spindle motor 41 can drive the camshaft 7 to rotate at high speed.

[0018] The cleaning process of the utility model is: first, the transfer mechanism 2 is moved to the station where the blowing mechanism 3 is located, and then the camshaft 7 that has completed the cleaning work is placed on the support seat 21 of the transfer mechanism 2, and then the fan 31 of the blowing mechanism 3 is started to blow the center holes at both ends of the camshaft 7, and the blowing pressure can be controlled between 0.1-1Mpa. After the moisture in the center hole and the end is blown dry, the support seat 21 moves the camshaft 7 to the station where the drying mechanism 4 is located, and the camshaft 7 is lifted with the assistance of workers, and the push rod 43 is extended, and the two ends of the camshaft 7 are tightly fixed between the rotating shaft of the spindle motor 41 and the push rod 43, and finally the spindle motor 41 is started to drive the camshaft 7 to rotate at a high speed, and the liquid attached to the surface of the camshaft 7 is dried by centrifugal force. The above-mentioned cleaning device can ensure that the liquid in the center hole and the surface of the end of the camshaft 7 can be cleaned.

[0019] As for the moving mode of the support seat 21, the utility model preferably uses a screw transmission mechanism, specifically, the transfer mechanism 2 also includes a screw 22 rotatably arranged on the support platform 1 and a drive motor 23 driving the screw 22 to rotate, and the support seat 21 is slidably arranged on the support platform 1 and is threadedly connected with the screw 22. By controlling the drive motor 23 to rotate forward and reverse a specific number of times, the moving distance of the support seat 21 can be accurately controlled, thereby realizing the accurate movement of the support seat 21 between the blowing mechanism 3 and the drying mechanism 4, and subsequently cooperating with the control system to realize automatic control of cleaning.

[0020] For some camshafts 7 with deep blind holes at the ends, the air flow is limited, and the blowing mechanism 3 alone may not achieve a sufficient drying effect. Therefore, a further solution is that a hole cleaning mechanism 5 is also provided between the blowing mechanism 3 and the spin-drying mechanism 4, and the hole cleaning mechanism 5 includes a telescopic rod 51 and a cleaning brush 52 arranged on the telescopic end of the telescopic rod 51. When cleaning the camshaft 7 with deep blind holes, after completing the drying process of the blowing mechanism 3 station, the support seat 21 first moves the camshaft 7 to a position facing the telescopic rod 51, and then the telescopic rod 51 drives the cleaning brush 52 to extend into the deep blind hole at the end of the camshaft 7 to clean the residual moisture. The cleaning brush 52 can be made of cloth or sponge with good water absorption effect, because only a small amount of moisture remains in the deep blind hole after drying, so the cleaning brush 52 can ensure that the moisture in the deep blind hole is completely removed.

[0021] Regarding the telescopic and rotating structure of the top rod 43 on the tail end support 42, the preferred solution adopted by the utility model is as follows: Figure 2 As shown, the tail end support 42 includes a fixed seat 44 and a sleeve 45 slidably arranged in the middle of the fixed seat 44, the push rod 43 is rotatably arranged in the sleeve 45, and the end of the fixed seat 44 away from the spindle motor 41 is provided with a telescopic cylinder 46, and the sleeve 45 is connected to the telescopic end of the telescopic cylinder 46. The push rod 43 and the sleeve 45 can be connected through a bearing, and the sleeve 45 is fixedly connected to the telescopic end of the telescopic cylinder 46. When the camshaft 7 needs to be clamped, the telescopic cylinder 46 extends to drive the sleeve 45 to move toward the direction of the spindle motor 41, so that the camshaft 7 is pressed against the rotating shaft of the spindle motor 41 by the push rod 43 to fix the camshaft 7. After cleaning, the telescopic cylinder 46 retracts and the camshaft 7 can be removed.

[0022] In addition to cleaning the liquid on the surface of the camshaft 7, the utility model can also be used to detect the sealing ring 8 on the camshaft 7. Because the sealing ring 8 on the head of the camshaft 7 may be damaged during the assembly process, it is currently mainly detected by the naked eye, so it is impossible to achieve 100% accuracy, resulting in product failure during the engine assembly process. In addition, there are also visual photography for comparative detection, the disadvantage is that the equipment cost is relatively high, because the product is a precision-machined surface, the reflection of the metal surface and other factors will cause erroneous judgments on the photography results, and the damage of the sealing ring is detected within a 360° range, which is difficult to achieve by visual photography.

[0023] In order to solve the above problems, the utility model adds a sealing ring detection mechanism 6 on the basis of the cleaning mechanism, such as Figure 2 As shown, the sealing ring detection mechanism 6 includes a downwardly retractable pressure probe 64, and the number and position of the pressure probe 64 correspond to the number and position of the sealing rings 8 on the camshaft 7. The specific detection process of the sealing ring detection mechanism 6 is: when the utility model performs the drying process of the camshaft 7, the centrifugal force can be increased by increasing the rotation speed of the camshaft 7. If the sealing ring 8 is damaged or broken, the damaged sealing ring 8 will be thrown away under the action of the centrifugal force, and then the pressure probe 64 is controlled to drop a certain distance so that its end contacts the sealing ring 8. If the camshaft 7 is installed with a sealing ring 8, the pressure value detected by the pressure probe 64 is normal. If the sealing ring 8 falls due to damage, the pressure probe 64 does not contact the sealing ring 8, and the detected pressure value is less than the normal value, thereby realizing the damage detection of the sealing ring 8.

[0024] The specific structure of the sealing ring detection mechanism 6 is as follows: Figure 2 As shown, the sealing ring detection mechanism 6 includes a mounting frame 61 fixed on the top of the tail end support 42 and a lifting rod 62 arranged on the top of the mounting frame 61. A detection head 63 with a pressure probe 64 is arranged at the lifting end of the lower end of the lifting rod 62. A connector 65 for connecting to an external controller is provided on the detection head 63. In order to make the detection head 63 rise and fall smoothly, it can be slidably connected to the mounting frame 61. The detection head 63 is electrically connected to the external controller through the connector 65, and can output an alarm signal to the outside according to the detection situation, thereby reminding the worker to reinstall the sealing ring 8.

[0025] The camshaft cleaning device of the utility model divides the cleaning of the liquid on the surface of the camshaft 7 into two processes. First, the fan 31 of the blowing mechanism 3 is used to blow and dry the two ends of the camshaft 7, and then the camshaft 7 is transferred to the station where the drying mechanism 4 is located through the transfer mechanism 2. The drying mechanism 4 fixes the two ends of the camshaft 7 and drives the camshaft 7 to rotate at a high speed, and uses centrifugal force to dry the liquid on the surface of the camshaft 7, thereby achieving a comprehensive cleaning effect on the camshaft 7 and avoiding the influence of insufficient cleaning on subsequent detection. At the same time, the utility model also sets a sealing ring detection mechanism 6 on the tail end support 42 of the drying mechanism 4, first uses the high-speed rotation of the camshaft 7 to get rid of the damaged sealing ring 8, and then uses the pressure detection mechanism to determine whether there is a sealing ring 8 on the camshaft 7, thereby realizing the damage detection of the sealing ring 8, which is convenient and fast, and has good practicality and application prospects.

Claims

1. A cleaning device for a camshaft, characterized in that: The invention comprises a transfer mechanism (2), a blowing mechanism (3) and a drying mechanism (4) arranged on a support platform (1); the transfer mechanism (2) comprises a support base (21) slidably arranged between the blowing mechanism (3) and the drying mechanism (4); the blowing mechanism (3) comprises a fan (31) arranged outside the two ends of the support base (21); the drying mechanism (4) comprises a coaxially arranged main shaft motor (41) and a tail end support (42); the tail end support (42) is provided with a push rod (43) which can rotate around its axis and move along its axis; when the push rod (43) is extended, the two ends of the cam shaft (7) can be respectively pressed against the rotating shaft of the main shaft motor (41) and the push rod (43) of the tail end support (42).

2. The cleaning device for a camshaft according to claim 1, characterized in that: The transfer mechanism (2) further comprises a screw rod (22) rotatably arranged on the support platform (1) and a driving motor (23) driving the screw rod (22) to rotate; the support seat (21) is slidably arranged on the support platform (1) and is threadedly connected to the screw rod (22).

3. The cleaning device for a camshaft according to claim 1, characterized in that: A hole cleaning mechanism (5) is also provided between the air blowing mechanism (3) and the drying mechanism (4), and the hole cleaning mechanism (5) comprises a telescopic rod (51) and a cleaning brush (52) provided on the telescopic end of the telescopic rod (51).

4. The cleaning device for a camshaft according to claim 1, characterized in that: The tail end support (42) comprises a fixed seat (44) and a sleeve (45) slidably arranged in the middle of the fixed seat (44); the push rod (43) is rotatably arranged in the sleeve (45); a telescopic cylinder (46) is arranged at one end of the fixed seat (44) away from the spindle motor (41); and the sleeve (45) is connected to the telescopic end of the telescopic cylinder (46).

5. The camshaft cleaning device according to any one of claims 1 to 4, characterized in that: It also includes a sealing ring detection mechanism (6), the sealing ring detection mechanism (6) including a pressure probe (64) that can be retracted downward, the number and position of the pressure probe (64) corresponding to the number and position of the sealing rings (8) on the camshaft (7).

6. The cleaning device for a camshaft according to claim 5, characterized in that: The sealing ring detection mechanism (6) comprises a mounting frame (61) fixed on the top of the tail end support (42) and a lifting rod (62) arranged on the top of the mounting frame (61); a detection head (63) with a pressure probe (64) is arranged at the lifting end of the lower end of the lifting rod (62); and a connecting head (65) for connecting to an external controller is provided on the detection head (63).

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