Camshaft hobbing device for multi-station continuous machining

Abstract

The utility model relates to the technical field of camshaft production and machining, in particular to a multi-station continuous machining camshaft hobbing device which comprises a workbench, a hobbing platform is fixedly connected to the top of the workbench, a belt cover is fixedly connected to one side of the outer wall of the workbench, a first driving motor is arranged on one side of the belt cover, and a second driving motor is arranged on the other side of the belt cover. The output end of the first driving motor extends into the belt cover and is connected with a driving wheel. Double hobbing concave seats are arranged on the hobbing device, a cam shaft is placed on the hobbing concave seats and is positioned and installed through a telescopic shaft sleeve and a positioning shaft pin, then a first driving motor is used for driving a driving wheel to rotate, the driving wheel drives a synchronous belt and a driven wheel to rotate, and the driven wheel drives a connecting shaft and a hobbing cutter to rotate; the cam shafts are pushed through operation of the electric telescopic rods, when the cam shafts are close to the hobbing cutter, the hobbing cutter can conduct hobbing machining operation on the surfaces of the multiple cam shafts at the same time, and the machining efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to camshaft production and processing technical field especially relates to a multi-station continuous processing's camshaft hobbing device. BACKGROUND

[0002] In modern machinery manufacturing industry, camshaft as the core component of many key mechanical equipment such as engine, its machining precision and quality are good or bad, and the overall performance and reliability of equipment play a decisive role, and multi-station continuous processing's camshaft hobbing device occupies the pivotal position in the large-scale production of camshaft with its efficient production efficiency and the characteristics of ensuring that machining precision is highly consistent.

[0003] And the traditional multi-station camshaft hobbing device in the actual operation process, its continuous operation mode although improves the machining efficiency, but also makes the metal scrap produced by the equipment in operation number geometric multiple growth, these scraps are extremely easy to splash everywhere and adhere to the surface of the workbench and each transmission component during the operation of the equipment, because the close connection between multiple stations, once the scrap enters the transmission system of a station, it will quickly spread in the whole equipment, leading to the key components of each station wear aggravation.

[0004] At the same time, the lubrication link is crucial to the stable operation of hobbing device. However, the traditional lubrication of camshaft usually adopts the way of artificial periodic injection of lubricating oil, and in the process of machining in different stations, the load size and running speed are different, and artificial injection is difficult to accurately control the amount and distribution of lubricating oil according to the real-time working condition of each station, so that part of the high load, high speed station is seriously worn due to insufficient lubrication, shortening the service life of the equipment, and part of the low load station is not only easy to absorb more scraps due to excessive lubricating oil, but also further deteriorates the running environment of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a multi-station continuous processing's camshaft hobbing device.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of multi-station continuous machining camshaft hobbing device, including workbench, the top of the workbench is fixedly connected with hobbing platform, the outer wall of the workbench is fixedly connected with belt cover, one side of the belt cover is provided with driving motor one, the output end of driving motor one extends to the inside of belt cover and is connected with driving wheel, the top of the hobbing platform is fixedly connected with support seat, the support seat is provided with connecting shaft, one end of the connecting shaft is fixedly connected with driven wheel, and the driven wheel is connected by synchronous belt between driving wheel, the end of the connecting shaft away from driven wheel is fixedly connected with hobbing grinding wheel, the top of the hobbing platform is fixed with two hobbing concave seats, and camshaft body is placed in the hobbing concave seat.

[0008] Preferably, the inner wall of the hobbing platform is fixedly connected with telescopic shaft sleeve on one side, the one end of the camshaft body is clamped into telescopic shaft sleeve, the one end of the camshaft body away from telescopic shaft sleeve is fixedly connected with positioning shaft pin, the outer wall of the hobbing platform is provided with electric telescopic rod on one side, the output end of the electric telescopic rod is connected with positioning shaft pin, and the upper of the camshaft body is provided with cleaning assembly.

[0009] Preferably, the cleaning assembly includes the movable hole opened in the both sides of hobbing platform, the support rod is arranged in the movable hole, the connecting frame is fixedly connected between the two support rods, the inner wall of the connecting frame is fixedly connected with rack on both sides, the hobbing platform is fixedly connected with support plate, the one side of the support plate is provided with driving motor two, the output end of driving motor two is connected with synchronous pulley, the outer surface of the synchronous pulley is fixedly connected with the gear in arc shape, the gear is meshedly connected with rack, the time sensor is arranged on the outer bottom of the connecting frame, the cleaning brush is connected with time sensor through connecting plate, the cleaning brush is located directly above the camshaft body, and the lubricating assembly is arranged on the one side of the camshaft body.

[0010] Preferably, the lubricating assembly includes oil storage tank on the one side of workbench, the inside of the oil storage tank is provided with oil pipe, one end of the oil pipe extends to the side of camshaft body and is connected with oil nozzle through the oil storage tank, the one end of the oil pipe close to the oil storage tank is provided with oil pump, flow control valve is arranged between oil pump and oil nozzle, and pressure sensor is arranged on the one end of oil pump away from flow control valve.

[0011] Preferably, the oil collecting tray is fixedly connected between the workbench and the hobbing platform, the oil leakage hole is formed in the one side of the oil collecting tray, the oil return pipeline is fixedly connected below the oil leakage hole, the oil return pipeline extends to the inside of the oil storage tank on one end, and the filter plate is fixedly connected between the oil return pipeline and the oil leakage hole.

[0012] Preferably, the outer wall of the hobbing platform is provided with a rectangular hole, and an inclined chip collecting guide plate is arranged in the rectangular hole; and a pull-out type chip collecting box is arranged in the interior of the hobbing platform, and the bottom of the chip collecting guide plate penetrates through the rectangular hole and extends into the interior of the pull-out type chip collecting box.

[0013] The utility model discloses beneficial effect is:

[0014] Through setting up double hobbing concave seat on the hobbing device, placing camshaft on the hobbing concave seat and positioning and installing it by telescopic shaft sleeve and positioning shaft pin, then driving motor one rotates driving wheel, driving wheel drives synchronous belt and driven wheel to rotate, driven wheel drives connecting shaft and hobbing cutter to rotate, and the camshaft is pushed by the electric telescopic link when the camshaft approaches the hobbing cutter, the hobbing cutter can carry out hobbing machining operation to the surface of multiple camshafts simultaneously, and the machining efficiency is improved.

[0015] When the camshaft is hobbing machined, the driving motor two linkage synchronous pulley, gear and rack drive the cleaning brush to reciprocate linearly on the surface of the camshaft, can clean the surface of the camshaft, is favorable to the metal chips and impurities produced during machining are swept to the chip collecting guide plate, then are led to fall into the pull-out type chip collecting box through the rectangular hole, compared with the traditional camshaft hobbing device, effectively avoid the situation that the debris splashes everywhere and adheres to the workbench and the surface of each transmission part, greatly reduce the risk of debris entering the transmission system, prevent the phenomenon that the key components are damaged due to debris abrasion, thereby guaranteeing the operation accuracy of the device, prolonging the service life of the device.

[0016] The time sensor detects and records the running time of the connecting frame, and the pressure sensor monitors the lubricating oil pressure output by the oil pump. The lubricating oil in the oil tank is pumped out and pressurized by starting the oil pump. The lubricating oil is delivered to the oil nozzle through the flow control valve and uniformly sprayed on the surface of the camshaft to form a lubricating film. Compared with the traditional manual regular lubricating oil injection method, the amount and distribution of lubricating oil can be accurately controlled according to the real-time working condition of each station, the lubricating demand of different load and speed stations is met, and the stability of equipment operation is effectively improved.

[0017] The excess lubricating oil is returned to the oil tank through the oil collecting disc and the oil return pipeline, and the filter plate filters the returned lubricating oil, achieving the effect of removing impurities and realizing the recycling of lubricating oil, thereby reducing the consumption cost of lubricating oil and reducing the equipment maintenance work caused by lubricating oil pollution, further optimizing the operation environment of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A general structure schematic view of a multi-station continuous machining camshaft hobbing device is provided for the utility model.

[0019] Figure 2A top view structure schematic diagram of a multi-station continuous machining camshaft gear hobbing device is provided in the utility model.

[0020] Figure 3 A gear hobbing platform structure schematic diagram of a multi-station continuous machining camshaft gear hobbing device is provided in the utility model.

[0021] Figure 4 A connecting frame structure schematic diagram of a multi-station continuous machining camshaft gear hobbing device is provided in the utility model.

[0022] Figure 5 An oil storage tank structure schematic diagram of a multi-station continuous machining camshaft gear hobbing device is provided in the utility model.

[0023] In the drawing,

[0024] 1, workbench;2, gear hobbing platform;201, support seat;202, connecting shaft;203, gear hobbing concave seat;204, camshaft body;205, telescopic shaft sleeve;206, positioning shaft pin;207, electric telescopic rod;3, belt cover;301, driving motor one;302, driving wheel;303, driven wheel;304, synchronous belt;305, gear hobbing grinding wheel;4, movable hole;401, support rod;402, connecting frame;403, rack;404, time sensor;405, cleaning brush;5, support plate;501, driving motor two;502, synchronous pulley;6, oil storage tank;601, oil pipe;602, oil injection nozzle;603, oil pump;604, flow control valve;605, pressure sensor;7, oil collecting disc;701, oil return pipeline;702, filter plate;8, chip collecting guide plate;801, pull-out chip collecting box. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0026] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0027] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings. The specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the existing technology. The machinery, parts and equipment adopt the conventional type in the existing technology, and the circuit connection adopts the conventional connection mode in the existing technology, which will not be described in detail here.

[0028] Embodiment one

[0029] With reference to Figures 1-5 A multi-station continuous machining camshaft gear rolling device, comprising a workbench 1, the top of the workbench 1 is fixedly connected with a gear rolling platform 2, one side of the outer wall of the workbench 1 is fixedly connected with a belt cover 3, one side of the belt cover 3 is provided with a driving motor 301, the output end of the driving motor 301 extends to the inside of the belt cover 3 and is connected with a driving wheel 302, one side of the top of the gear rolling platform 2 is fixedly connected with a supporting seat 201, the supporting seat 201 is provided with a connecting shaft 202, one end of the connecting shaft 202 is fixedly connected with a driven wheel 303, the driven wheel 303 and the driving wheel 302 are connected through a synchronous belt 304, one end of the connecting shaft 202 away from the driven wheel 303 is fixedly connected with a gear rolling grinding wheel 305, the top of the gear rolling platform 2 is fixedly connected with two gear rolling concave seats 203, the gear rolling concave seats 203 are placed with camshaft bodies 204.

[0030] One side of the inner wall of the gear rolling platform 2 is fixedly connected with an extension shaft sleeve 205, one end of the camshaft body 204 is clamped into the extension shaft sleeve 205, one end of the camshaft body 204 away from the extension shaft sleeve 205 is fixedly connected with a positioning shaft pin 206, one side of the outer wall of the gear rolling platform 2 is provided with an electric telescopic rod 207, the output end of the electric telescopic rod 207 is connected with the positioning shaft pin 206, the upper side of the camshaft body 204 is provided with a cleaning assembly.

[0031] In this embodiment, when the gear rolling machining of the camshaft body 204 is needed, first, the two camshaft bodies 204 are placed in the gear rolling concave seats 203 in turn, then one end of the camshaft body 204 is clamped into the extension shaft sleeve 205, and the other end is clamped into the positioning shaft pin 206, then the driving motor 301 on one side is started, when the driving motor 301 operates, the driving wheel 302 at one end of the driving motor 301 rotates, when the driving wheel 302 rotates, the synchronous belt 304 is driven to rotate, when the synchronous belt 304 is driven to rotate, the driven wheel 303 at the other end is driven to rotate, when the driven wheel 303 rotates, the connecting shaft 202 at one end of the driven wheel 303 and the gear rolling grinding wheel 305 are driven to rotate, at this time, the two electric telescopic rods 207 on one side are started, the electric telescopic rod 207 operates to push the camshaft body 204 towards the gear rolling grinding wheel 305, at this time, the extension shaft sleeve 205 shrinks inward, then when the camshaft body 204 approaches the gear rolling grinding wheel 305, the gear rolling grinding wheel 305 can simultaneously perform gear rolling machining operation on the surfaces of the plurality of camshaft bodies 204, thereby improving the machining efficiency.

[0032] Example two:

[0033] With reference to Figures 4-5On the basis of embodiment one, a multi-station continuous machining camshaft gear rolling device technical scheme is provided, the cleaning assembly includes the movable hole 4 opened in the both sides of the gear rolling platform 2, the support rod 401 is arranged in the movable hole 4, the connecting frame 402 is fixedly connected between the two support rods 401, the inner wall both sides of the connecting frame 402 are fixedly connected with the rack 403, the support plate 5 is fixedly connected between the gear rolling platform 2, the drive motor two 501 is arranged on one side of the support plate 5, the output end of the drive motor two 501 is connected with the synchronous pulley 502, the outer surface of the synchronous pulley 502 is fixedly connected with the arc-shaped gear, the gear is meshed and connected with the rack 403, the time sensor 404 is arranged on the outer bottom of the connecting frame 402, the cleaning brush 405 is connected with the bottom of the time sensor 404 through the connecting plate, the cleaning brush 405 is located directly above the camshaft body 204, the lubricating assembly is arranged on one side of the camshaft body 204.

[0034] The lubricating assembly includes the oil tank 6 located on one side of the workbench 1, the inside of the oil tank 6 is provided with the oil pipe 601, one end of the oil pipe 601 extends to the side of the camshaft body 204 through the oil tank 6 and is connected with the oil nozzle 602, the end of the oil pipe 601 close to the oil tank 6 is provided with the oil pump 603, the flow control valve 604 is arranged between the oil pump 603 and the oil nozzle 602, the end of the oil pump 603 away from the flow control valve 604 is provided with the pressure sensor 605.

[0035] The workbench 1 and the gear rolling platform 2 are fixedly connected with the oil collecting disc 7, the oil collecting disc 7 is fixedly connected with the oil return pipeline 701 below the oil leakage hole, one end of the oil return pipeline 701 extends to the inside of the oil tank 6, the filter plate 702 is fixedly connected between the oil return pipeline 701 and the oil leakage hole.

[0036] The outer wall of the gear rolling platform 2 is provided with a rectangular hole, the chip collecting guide plate 8 is arranged obliquely in the rectangular hole, the inside of the gear rolling platform 2 is provided with the pull-out type chip collecting box 801, the bottom of the chip collecting guide plate 8 penetrates through the rectangular hole and extends to the inside of the pull-out type chip collecting box 801.

[0037] In this embodiment, when the gear hobbing tool 305 is gear hobbing the camshaft body 204, a large amount of debris will be generated on the surface of the camshaft body 204. At this time, the driving motor two 501 is started, and when the driving motor two 501 operates, the synchronous pulley 502 at one end of the driving motor two 501 is driven to rotate. When the synchronous pulley 502 rotates, the gear at the end of the synchronous pulley 502 is driven to rotate. When the gear rotates, the rack 403 connected with the gear is driven to move. Thus, when the gear rotates, the rack 403 is driven to move linearly back and forth. When the rack 403 moves, the cleaning brush 405 at the bottom of the rack 403 is driven to move. Subsequently, when the cleaning brush 405 moves along the surface of the camshaft body 204 and is in close contact with the surface of the camshaft body 204, the cleaning brush 405 can clean the metal debris and impurities generated during the gear hobbing process. The cleaned metal debris and impurities fall into the pull-out type debris collecting box 801 through the rectangular hole of the debris collecting guide plate 8, so that the metal debris and impurities can be collected and cleaned.

[0038] When the cleaning brush 405 cleans the camshaft body 204, the time sensor 404 at one end of the cleaning brush 405 detects and records the moving operation time of the connecting frame 402 in real time, and the pressure sensor 605 is used to monitor the lubricating oil pressure output by the oil pump 603. When the moving operation time of the connecting frame 402 reaches the preset lubricating interval time, the oil pump 603 is started. At this time, the oil pump 603 pumps and pressurizes the lubricating oil in the oil tank 6, and the lubricating oil is delivered to the oil nozzle 602 through the oil pipe 601 according to the preset flow rate through the flow control valve 604. Subsequently, the oil nozzle 602 can uniformly spray the lubricating oil on the surface of the camshaft body 204, forming a lubricating film on the surface of the camshaft body 204, reducing the friction and wear generated during the cleaning of the camshaft body 204.

[0039] After the camshaft body 204 is lubricated, the excess lubricating oil flows into the oil collecting disc 7 under the action of gravity, and then flows back to the oil tank 6 through the oil return pipe 701 through the oil leakage hole on one side of the oil collecting disc 7. The lubricating oil is filtered through the filter plate 702 between the oil return pipe 701 and the oil leakage hole, so that the impurities in the lubricating oil are removed, and the clean lubricating oil is returned to the oil tank 6, realizing the recycling of the lubricating oil and reducing the consumption cost of the lubricating oil.

[0040] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0041] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0042] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A multi-station continuous machining camshaft gear hobbing device, comprising a worktable (1), characterized in that, A gear hobbing platform (2) is fixedly connected to the top of the workbench (1). A belt cover (3) is fixedly connected to one side of the outer wall of the workbench (1). A drive motor (301) is provided on one side of the belt cover (3). The output end of the drive motor (301) extends into the inside of the belt cover (3) and is connected to a drive wheel (302). A support base (201) is fixedly connected to the top side of the gear hobbing platform (2). A connecting rod is provided inside the support base (201). A shaft (202) is connected to a driven wheel (303) at one end. The driven wheel (303) and the driving wheel (302) are connected by a synchronous belt (304). A gear hobbing cutter (305) is fixedly connected to the end of the connecting shaft (202) away from the driven wheel (303). Two gear hobbing recesses (203) are fixed on the top of the gear hobbing platform (2). A camshaft body (204) is placed in the gear hobbing recesses (203).

2. The camshaft gear hobbing device for multi-station continuous machining according to claim 1, characterized in that, A telescopic bushing (205) is fixedly connected to one side of the inner wall of the gear hobbing platform (2). One end of the camshaft body (204) is snapped into the telescopic bushing (205). A positioning pin (206) is fixedly connected to the end of the camshaft body (204) away from the telescopic bushing (205). An electric telescopic rod (207) is provided on one side of the outer wall of the gear hobbing platform (2). The output end of the electric telescopic rod (207) is connected to the positioning pin (206). A cleaning component is provided above the camshaft body (204).

3. The camshaft gear hobbing device for multi-station continuous machining according to claim 2, characterized in that, The cleaning component includes movable holes (4) on both sides of the gear hobbing platform (2), with support rods (401) installed in the movable holes (4). A connecting frame (402) is fixedly connected between the two support rods (401), and racks (403) are fixedly connected to both sides of the inner wall of the connecting frame (402). A support plate (5) is fixedly connected between the gear hobbing platforms (2), and a second drive motor (501) is installed on one side of the support plate (5). The output end of the second drive motor (501) A synchronous pulley (502) is connected, and an arc-shaped gear is fixedly connected to the outer surface of the synchronous pulley (502). The gear meshes with a rack (403). A time sensor (404) is provided on the bottom of the connecting frame (402). A cleaning brush (405) is connected to the bottom of the time sensor (404) through a connecting plate. The cleaning brush (405) is located directly above the camshaft body (204). A lubrication assembly is provided on one side of the camshaft body (204).

4. The camshaft gear hobbing device for multi-station continuous machining according to claim 3, characterized in that, The lubrication assembly includes an oil reservoir (6) located on one side of the workbench (1). An oil pipe (601) is provided inside the oil reservoir (6). One end of the oil pipe (601) extends through the oil reservoir (6) to the side of the camshaft body (204) and is connected to an oil injector (602). An oil pump (603) is provided at the end of the oil pipe (601) near the oil reservoir (6). A flow control valve (604) is provided between the oil pump (603) and the oil injector (602). A pressure sensor (605) is provided at the end of the oil pump (603) away from the flow control valve (604).

5. The camshaft hobbing device for multi-station continuous machining according to claim 4, characterized in that, An oil collection tray (7) is fixedly connected between the workbench (1) and the gear hobbing platform (2). An oil leakage hole is provided on one side of the oil collection tray (7). A return oil pipe (701) is fixedly connected below the oil leakage hole. One end of the return oil pipe (701) extends into the interior of the oil storage tank (6). A filter plate (702) is fixedly connected between the return oil pipe (701) and the oil leakage hole.

6. The camshaft hobbing device for multi-station continuous machining according to claim 1, characterized in that, The outer wall of the gear hobbing platform (2) is provided with a rectangular hole, and a chip collection guide plate (8) is inclinedly arranged in the rectangular hole. A pull-out chip collection box (801) is provided inside the gear hobbing platform (2). The bottom of the chip collection guide plate (8) passes through the rectangular hole and extends into the interior of the pull-out chip collection box (801).

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