Wheel drilling device

Abstract

The utility model relates to a wheel drilling device which is characterized in that a through hole is formed in the center of the surface of the lower part of a drilling component shell (1-1) for mounting a shaft sleeve (1-6), the shaft sleeve (1-6) is movably sleeved with a transmission shaft of a drilling tool bit (1-5), and four hub positioning rod movable rectangular holes (1-4) are formed in the surface of the lower part of the drilling component shell (1-1) around the shaft sleeve (1-6); one end of the hub positioning rod movable rectangular hole (1-4) is right opposite to the axis of the shaft sleeve (1-6), a hub positioning rod (1-2) is installed on the lower surface of a sliding block (1-7-3) of a lead screw (1-7) on the inner side of the hub positioning rod movable rectangular hole (1-4), and four or five hub positioning rod contact blocks (1-3) are connected to the lower half portion of the hub positioning rod (1-2) in series. The appearance of the hub can not be affected any more without polishing, working hours are saved, cooling liquid can make contact with the drilling part comprehensively, evenly and continuously, and it is guaranteed that a workpiece is evenly cooled.

Description

Technical Field

[0001] The utility model relates to a drilling device, in particular to a wheel drilling device. Background Art

[0002] During the production of aluminum alloy wheel hubs, they must first be melted, and then the molten aluminum alloy is die-cast into the shape of a hub. At this time, the hub is in a blank state and requires special milling work. Before milling, the center hole of the hub needs to be processed first to facilitate the subsequent tooling to fix the hub for other more refined processing. The current processing method mainly uses a drill to drill from the inside of the hub to the outside. This method will cause burrs on the outer edge of the center hole of the hub. These outward burrs will affect the appearance of the wheel, so special staff are required to use a handheld grinder to grind them off. This requires the production line to set up an additional workstation, which increases the production hours. At the same time, the existing drilling and washing mainly uses direct spraying of nozzles to cool and lubricate. This method will make the coolant on the surface of the workpiece scarce and uneven, which will cause uneven cooling and cause minor damage to the hub structure, affecting the quality of the hub.

[0003] At present, the utility model with patent number CN203292467U discloses a wheel drilling device, which is composed of a frame, a fixture, a guide column, a guide sleeve, a drilling power head, a servo slide, a guide rail and a cylinder. When in use, the wheel blank is first placed face down on the radial fixture, and the cylinder presses the axial fixture to the wheel through the servo slide. After contacting the wheel, the axial fixture continues to move downward, the spring is compressed and the wheel is fixed; at this time, the servo slide drives the drilling power head to start drilling the wheel gate. The utility model can meet the de-gating needs of the wheel blank during use, and the conical surface formed at the diverter cone can guide the drill bit. It is not only easy to use, but also has the characteristics of simple structure, advanced technology, safe and stable performance. However, the application scheme itself also drills from the inside of the wheel hub to the outside, and cannot control the generation of outward burrs. Summary of the invention

[0004] In response to the problems existing in the above-mentioned prior art, the utility model provides a wheel drilling device, which can make the burrs face inward, no longer affect the appearance of the wheel hub and save work time without grinding, and can allow the coolant to fully, evenly and continuously contact the drilling part to ensure uniform cooling of the workpiece.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a wheel drilling device, including a drilling assembly and a base, a drilling pool is fixedly installed on the upper surface of the base, a lifting column is provided near the edge of the upper surface of the base, the top of the lifting column is connected to the drilling assembly, a groove is provided at the bottom of the drilling pool to install the spring legs of the transfer assembly, five or six conveying rollers are installed on the top of the spring legs through the conveying roller bracket, and a sensor cluster is vertically installed on the lower surface of the drilling assembly; the drilling assembly includes a drilling assembly housing, a wheel hub positioning rod, a wheel hub positioning rod contact block, and a wheel hub positioning rod movable torque A through hole, a drilling tool head, a bushing, a lead screw, a lifting slide rail, a drilling motor lifting platform and a drilling motor are provided. A through hole is opened at the center of the lower surface of the drilling component shell to install the bushing. The bushing is movable to fit the transmission shaft of the drilling tool head. Four hub locating rod movable rectangular holes are opened around the bushing on the lower surface of the drilling component shell. One end of the hub locating rod movable rectangular hole is facing the axis of the bushing. The hub locating rod is installed on the lower surface of the slider of the lead screw inside the hub locating rod movable rectangular hole. Four or five hub locating rod contact blocks are connected in series to the lower half of the hub locating rod.

[0006] In addition, the wheel drilling device according to the above embodiment of the utility model may also have the following additional technical features:

[0007] As a further improvement scheme of the utility model, two or four lifting slide rails are vertically installed inside the drilling assembly shell, the gears of the drilling motor lifting platform and the toothed belts on the surface of the lifting slide rails, the side of the drilling motor lifting platform is equipped with a driving motor, the drilling motor is installed on the drilling motor lifting platform, and the transmission shaft of the drilling motor is connected to the drilling head through a rotating shaft.

[0008] As a further improvement scheme of the utility model, the screw includes a screw fixing block, a screw body, a slider, a slide rail and a drive motor. The two ends of the screw body are respectively installed with fixing blocks through bearings. The rotating shaft of the drive motor drives one end of the screw body. A slide rail is provided between the two screw fixing blocks. The slider moves back and forth between the two screw fixing blocks under the drive of the screw body.

[0009] As a further improvement of the utility model, the conveying roller bracket has a built-in driving motor and a transmission gear.

[0010] As a further improvement of the present utility model, the wheel hub positioning rod is an electrically controlled telescopic rod.

[0011] As a further improvement of the present invention, two sensor clusters are vertically mounted on the lower surface of the drilling assembly.

[0012] Through the above scheme, the utility model has at least the following advantages: compared with conventional drilling equipment, by immersing the entire wheel hub in the drilling pool, the coolant can fully, evenly and continuously contact the drilling part to ensure uniform cooling of the workpiece; at the same time, because the drilling head drills from the outside of the wheel hub to the inside, the burrs can be directed to the inside, and no grinding is required, which will no longer affect the appearance of the wheel hub, thereby saving a workstation and reducing production hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional schematic diagram of a wheel drilling device;

[0014] Figure 2 is a bottom perspective view of a drilling assembly of a wheel drilling device;

[0015] Figure 3 is a front cross-sectional view of a drilling assembly of a wheel drilling device;

[0016] Figure 4 is a perspective view of a transfer assembly of a wheel drilling device;

[0017] Figure 5 It is a schematic diagram of the screw structure of the wheel drilling device;

[0018] In the figure: 1. Drilling assembly, 1-1. Drilling assembly housing, 1-2. Hub positioning rod, 1-3. Hub positioning rod contact block, 1-4. Hub positioning rod movable rectangular hole, 1-5. Drilling tool head, 1-6. Bushing, 1-7. Screw, 1-7-1. Screw fixing block, 1-7-2. Screw body, 1-7-3. Slider, 1-7-4. Slide rail, 1-7-5. Drive motor, 1-8. Lifting slide rail, 1-9. Drilling motor lifting platform, 1-10. Drilling motor, 2. Sensor cluster, 3. Lifting column, 4. Transfer assembly, 4-1. Conveyor roller bracket, 4-2. Spring support leg, 4-3. Conveyor roller, 5. Drilling pool, 6. Base. DETAILED DESCRIPTION

[0019] The wheel drilling device of the present invention will be described below in conjunction with the accompanying drawings.

[0020] In the specific implementation mode 1 of the present application, Figures 1 to 4As shown, the wheel drilling device (hereinafter referred to as "this patent") includes a drilling component 1, a drilling component housing 1-1, a hub positioning rod 1-2, a hub positioning rod contact block 1-3, a hub positioning rod movable rectangular hole 1-4, a drilling cutter head 1-5, a bushing 1-6, a lead screw 1-7, a lifting slide rail 1-8, a drilling motor lifting platform 1-9, a drilling motor 1-10, a sensor cluster 2, a lifting column 3, a transfer component 4, a conveying roller bracket 4-1, a spring leg 4-2, a conveying roller 4-3, a drilling pool 5, and a base 6. The drilling pool 5 is fixedly installed on the upper surface of the base 6, and a lifting column 3 is provided near the edge of the upper surface of the base 6. The top of the lifting column 3 is connected to the drilling component 1, and a groove is opened at the bottom of the drilling pool 5 to install the spring leg 4-2 of the transfer component 4. Five or six conveying rollers 4-3 are installed on the top of the spring leg 4-2 through the conveying roller bracket 4-1. The lower surface of the drilling component 1 is vertically installed The sensor cluster 2; the drilling assembly 1 includes a drilling assembly housing 1-1, a hub locating rod 1-2, a hub locating rod contact block 1-3, a hub locating rod movable rectangular hole 1-4, a drilling head 1-5, a bushing 1-6, a lead screw 1-7, a lifting slide rail 1-8, a drilling motor lifting platform 1-9 and a drilling motor 1-10. A through hole is opened at the center of the lower surface of the drilling assembly housing 1-1 to install the bushing 1-6. The bushing 1-6 is movable to the transmission shaft of the drilling head 1-5. Four hub locating rod movable rectangular holes 1-4 are opened around the bushing 1-6 on the lower surface of the drilling assembly housing 1-1. One end of the hub locating rod movable rectangular hole 1-4 is opposite to the axis of the bushing 1-6. The hub locating rod 1-2 is installed on the lower surface of the slider 1-7-3 of the lead screw 1-7 inside the hub locating rod movable rectangular hole 1-4. Four or five hub locating rod contact blocks 1-3 are connected in series to the lower half of the hub locating rod 1-2. Two or four lifting rails 1-8 are vertically installed inside the drilling component housing 1-1, the gears of the drilling motor lifting platform 1-9 and the toothed belts on the surface of the lifting rails 1-8, the side of the drilling motor lifting platform 1-9 is equipped with a driving motor, and the drilling motor 1-10 is installed on the drilling motor lifting platform 1-9. The transmission shaft of the drilling motor 1-10 is connected to the drilling head 1-5 through a rotating shaft. The drilling motor lifting platform 1-9 built into the drilling component housing 1-1 can effectively extend the working range of the drilling head 1-5, so that the equipment can cope with the drilling of various hub center holes by simply replacing the corresponding drilling head 1-5.

[0021] The utility model number is CN203292467U, which is a wheel drilling device (hereinafter referred to as "the patent"). The application scheme itself also drills from the inside of the wheel hub to the outside, and cannot control the generation of outward burrs. However, this patent uses a drilling head 1-5 to drill a center hole from the outside of the wheel hub, which can make the burrs face inward. No grinding is required and the appearance of the wheel hub will not be affected, thereby saving a work station and reducing production hours.

[0022] The structure of the second embodiment is basically the same as that of the first embodiment, except that Figure 5 As shown, as a further improvement of the utility model, the lead screw 1-7 includes a lead screw fixing block 1-7-1, a lead screw body 1-7-2, a slider 1-7-3, a slide rail 1-7-4 and a drive motor 1-7-5. The two ends of the lead screw body 1-7-2 are respectively mounted with the fixing blocks 1-7-1 through bearings. The rotating shaft of the drive motor 1-7-5 drives one end of the lead screw body 1-7-2. A slide rail 1-7-4 is provided between the two lead screw fixing blocks 1-7-1. The slider 1-7-3 moves back and forth between the two lead screw fixing blocks 1-7-1 under the drive of the lead screw body 1-7-2. The cooperation between the lead screw body 1-7-2 and the slide rail 1-7-4 allows the slider 1-7-3 to move flexibly, and cooperates with the slide rail 1-7-4 to provide support force, so that the slider 1-7-3 can provide a more stable foundation for the hub positioning rod 1-2.

[0023] In order to further optimize the working efficiency of the present application, the conveying roller 4-3 can convey the drilled hub to the next process, and the conveying roller bracket 4-1 has a built-in drive motor and transmission gear. In order to enable the hub positioning rod 1-2 to adjust its length as needed, the hub positioning rod 1-2 is an electrically controlled telescopic rod. In order to enable the equipment to better sense the hub position and ensure that the hub can be immersed in the coolant of the drilling pool 5, two sensor clusters 2 are vertically installed on the lower surface of the drilling assembly 1.

[0024] When in use, install the wheel drilling device and align the conveying rollers to the front and rear of the transfer assembly 4. Since the entire conveying line is operated by the conveying rollers, the conveying rollers do not need to be docked with the transfer assembly 4, and only need to be aligned.

[0025] When the utility model is in use, the specific operations are as follows:

[0026] When in use, the conveying roller conveys a wheel hub with the outer side facing upward to the conveying roller 4-3 of the transfer assembly 4. After the sensor cluster 2 senses the position of the wheel hub, it controls the conveying roller bracket 4-1 to drive the conveying roller 4-3 to convey the wheel hub to a position relatively close to the bottom of the drilling head 1-5. The lifting column 3 contracts to lower the drilling assembly 1. After the drilling assembly 1 is lowered to the working range of the wheel hub positioning rod contact block 1-3 on the surface of the wheel hub positioning rod 1-2, the four wheel hub positioning rods 1-2, under the control of their respective screws 1-7, align the position of the wheel hub to be processed with the drilling head 1-5, and the lifting column 3 continues to contract to lower the drilling assembly 1 , and press the wheel hub into the coolant in the drilling pool 5. At this time, the spring leg 4-2 of the conveying roller bracket 4-1 is compressed by pressure, so that the conveying roller 4-3 is immersed in the drilling pool 5. After the wheel hub is completely immersed in the drilling pool 5, the drilling motor 1-10 in the drilling assembly housing 1-1 drives the drilling head 1-5 to rotate at high speed, and the drilling motor lifting platform 1-9 begins to descend along the lifting slide rail 1-8, so that the drilling head 1-5 gradually extends out of the sleeve 1-6, and finally completes the drilling. After the drilling is completed, all parts are reset, and the conveying roller bracket 4-1 can drive the conveying roller 4-3 to convey the wheel hub to the next process.

[0027] Since the spring leg 4-2 itself is a support rod built into the sleeve and the restoring force is provided by the spring, after the spring leg 4-2 loses the pressure of the hub positioning rod 1-2 of the drilling assembly 1, the spring leg 4-2 can push the conveying roller 4-3 back to its original position.

[0028] In summary, the wheel drilling device of the embodiment of the utility model uses the liftable drilling assembly 1 to press the wheel hub into the coolant, and immerses the entire wheel hub in the drilling pool 5 for processing, so that the coolant can fully, evenly and continuously contact the drilling part to ensure uniform cooling of the workpiece. Since the drilling heads 1-5 drill from the outside of the wheel hub to the inside, the burrs can be directed to the inside, and no grinding is required and the appearance of the wheel hub will not be affected, thereby saving a workstation and reducing production hours.

[0029] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A wheel drilling device, comprising a drilling assembly (1) and a base (6), characterized in that: A drilling pool (5) is fixedly installed on the upper surface of the base (6); a lifting column (3) is provided near the edge of the upper surface of the base (6); the top of the lifting column (3) is connected to the drilling assembly (1); a groove is provided at the bottom of the drilling pool (5) to install the spring leg (4-2) of the transfer assembly (4); five or six conveying rollers (4-3) are installed on the top of the spring leg (4-2) through a conveying roller bracket (4-1); and a sensor cluster (2) is vertically installed on the lower surface of the drilling assembly (1); the drilling assembly (1) comprises a drilling assembly housing (1-1), a wheel hub positioning rod (1-2), a wheel hub positioning rod contact block (1-3), a wheel hub positioning rod movable rectangular hole (1-4), a drilling cutter head (1-5), a shaft sleeve (1-6), a lead screw (1-7), and a lifting rail (1-8), a drilling motor lifting platform (1-9) and a drilling motor (1-10); a through hole is opened at the center of the lower surface of the drilling component housing (1-1) to install a shaft sleeve (1-6); the shaft sleeve (1-6) is movably mounted on the transmission shaft of the drilling cutter head (1-5); four hub positioning rod movable rectangular holes (1-4) are opened on the lower surface of the drilling component housing (1-1) around the shaft sleeve (1-6); one end of the hub positioning rod movable rectangular hole (1-4) is directly opposite to the axis of the shaft sleeve (1-6); a hub positioning rod (1-2) is installed on the lower surface of a slider (1-7-3) of a lead screw (1-7) inside the hub positioning rod movable rectangular hole (1-4); and four or five hub positioning rod contact blocks (1-3) are connected in series to the lower half of the hub positioning rod (1-2).

2. The wheel drilling device according to claim 1, characterized in that: Two or four lifting rails (1-8) are vertically installed inside the drilling assembly housing (1-1), the gears of the drilling motor lifting platform (1-9) and the toothed belts on the surface of the lifting rails (1-8), the side of the drilling motor lifting platform (1-9) is equipped with a driving motor, the drilling motor (1-10) is installed on the drilling motor lifting platform (1-9), and the transmission shaft of the drilling motor (1-10) is connected to the drilling cutter head (1-5) via a rotating shaft.

3. The wheel drilling device according to claim 2, characterized in that: The lead screw (1-7) comprises a lead screw fixing block (1-7-1), a lead screw body (1-7-2), a slider (1-7-3), a slide rail (1-7-4) and a drive motor (1-7-5); the two ends of the lead screw body (1-7-2) are respectively mounted with the fixing blocks (1-7-1) through bearings; the rotating shaft of the drive motor (1-7-5) is driven to connect one end of the lead screw body (1-7-2); a slide rail (1-7-4) is arranged between the two lead screw fixing blocks (1-7-1); and the slider (1-7-3) moves back and forth between the two lead screw fixing blocks (1-7-1) under the drive of the lead screw body (1-7-2).

4. The wheel drilling device according to claim 1, characterized in that: The conveying roller bracket (4-1) has a built-in driving motor and a transmission gear.

5. The wheel drilling device according to claim 1 or 4, characterized in that: The wheel hub positioning rod (1-2) is an electrically controlled telescopic rod.

6. The wheel drilling device according to claim 1, characterized in that: Two sensor clusters (2) are vertically mounted on the lower surface of the drilling assembly (1).

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