A double-spindle double-channel vertical machining center machine tool

Abstract

The present application belongs to the field of automobile wheel machining, and particularly relates to a double-spindle double-channel vertical machining center machine tool, the bed body is provided with a first workbench and a second workbench on both sides, a first turnover A shaft is arranged on the inner wall of the bed body and connected with the first workbench, a first spindle is arranged on the top of the bed body through a first servo X shaft and a first servo Z shaft, a first disc type tool magazine is fixed on one side of the bed body, bolt hole drill bits and valve hole drill bits are arranged in the first disc type tool magazine, and the bolt hole drill bits and the valve hole drill bits are connected with the first spindle; the second workbench is consistent with the first workbench in principle. The present application is provided with two workbenches on the bed body, solves the problem of long processing rhythm when processing complex wheel types, improves the processing flexibility and the flexibility of processing unit matching, and reduces the machine adjustment difficulty and equipment cost. The double stations of the present application are independently processed respectively, the production efficiency is greatly improved for plug-in hole and snap ring type wheel, and the problem of long processing rhythm is solved.

Description

Technical Field

[0001] This invention belongs to the field of automotive wheel machining, specifically relating to a dual-spindle dual-channel vertical machining center. Background Technology

[0002] With the trend towards lighter wheels and increasingly demanding aesthetics from customers, insert wheels and wheels with front decorative rings are becoming more mainstream in order to reduce wind resistance during driving. Under current processing conditions, wheel bolt holes, valve holes, insert holes, and decorative holes are all processed in the third stage. When processing insert hole wheel types or circlip wheel types, the third stage processing time is the longest, resulting in excessively long cycle times during mass production and affecting output. Summary of the Invention

[0003] This invention proposes a dual-spindle, dual-channel vertical machining center to solve the problem of long three-stage machining time affecting output in the prior art.

[0004] To achieve the above objectives, the present invention proposes the following technical solution: A dual-spindle dual-channel vertical machining center includes a bed, a first worktable, a second worktable, a wheel clamp, a first tilting A-axis, a second tilting A-axis, a first spindle, a second spindle, a first servo X-axis, a second servo X-axis, a first servo Z-axis, a second servo Z-axis, a first disc-type tool magazine, and a second disc-type tool magazine. A first workbench and a second workbench are provided on both sides of the bed, and a wheel clamp is provided on each of the first workbench and the second workbench. The first tilting A-axis is set on the inner wall of the bed and connected to the first worktable. The first spindle is set on the top of the bed through the first servo X-axis and the first servo Z-axis. The first disc-type tool magazine is fixed on one side of the bed. The first disc-type tool magazine is equipped with bolt hole drill bits and valve hole drill bits. The bolt hole drill bits and valve hole drill bits are connected to the first spindle. The second tilting A-axis is mounted on the inner wall of the bed and connected to the second worktable. The second spindle is mounted on the top of the bed via the first servo X-axis and the second servo Z-axis. The second disc-type tool magazine is fixed to one side of the bed. The second disc-type tool magazine is equipped with bolt hole drill bits and valve hole drill bits, which are connected to the second spindle.

[0005] Preferably, it also includes a sheet metal partition, which is located between the first and second worktables on the bed.

[0006] Preferably, the bolt hole drill bits and valve hole drill bits in the first disc-type tool magazine are connected to the first spindle via a drill chuck; the bolt hole drill bits and valve hole drill bits in the second disc-type tool magazine are connected to the second spindle via a drill chuck.

[0007] Preferably, the bed frame is provided with a first door and a second door, which correspond to the positions of the first workbench and the second workbench, respectively.

[0008] Preferably, it also includes a chip conveyor, which is fixed to the bottom of the bed.

[0009] The advantages of this invention are: This invention features two worktables on the machine bed, solving the problem of excessively long cycle times when machining complex wheel shapes. It improves machining flexibility and the matching flexibility of machining units, while reducing the difficulty of machine setup and equipment costs. This invention enables independent machining at two separate workstations, significantly improving production efficiency for wheel shapes with insert holes and retaining rings, and resolving the issue of excessively long machining cycles. Attached Figure Description

[0010] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of a dual-spindle, dual-channel vertical machining center. Figure 2 This is a top view schematic diagram of a dual-spindle, dual-channel vertical machining center. Detailed Implementation

[0011] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0012] The following detailed description is exemplary and intended to provide further detailed explanation of the invention. Unless otherwise specified, all technical terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this invention is for describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. Example 1

[0013] Please see Figure 1As shown, the present invention provides a dual-spindle dual-channel vertical machining center, including a chip conveyor 1, a bed 2, a first servo Y-axis 3, a first worktable 4, a wheel fixture 5, a wheel to be processed 6, a first tilting A-axis 7, a first disc-type tool magazine 8, a valve hole scribing drill bit 9, a valve hole drill bit 10, a first door 11, a first servo X-axis 12, a first servo Z-axis 13, a first spindle 14, a sheet metal partition 15, a second servo X-axis 16, a second servo Z-axis 17, a second spindle 18, a second door 19, a second disc-type tool magazine 20, a bolt hole drill bit 21, a second tilting A-axis 22, a second worktable 23, and a second servo Y-axis 24.

[0014] A first worktable 4 and a second worktable 23 are arranged on both sides of the bed. A sheet metal partition 15 is provided between the first worktable 4 and the second worktable 23. The sheet metal partition 15 is located in the middle of the bed 2 and is fixed by a keyway, separating the first worktable 4 and the second worktable 23 on both sides. The first servo Y-axis 3 and the second servo Y-axis 24 are located at the bottom of the bed 2. The first worktable 4 and the second worktable 23 are respectively connected to the first servo Y-axis 3 and the second servo Y-axis for movement via guide rails and lead screws.

[0015] The wheel clamp 5 is fixed to the first worktable 4 by a threaded connection. The first tilting A-axis 7 is set on the inner wall of the bed and controls the rotation angle of the first worktable 4 by a worm gear transmission. The first spindle 14 is connected to the bed casting by a guide rail screw. The first servo X-axis 12 and the first servo Z-axis 13 are on the top of the bed 2 and control the movement direction of the first spindle 14. The first disc-type tool magazine 8 is fixed on both sides of the bed 2. The bolt hole drill bit 21 and the valve hole drill bit 10 are placed in the first disc-type tool magazine 8. The bolt hole drill bit 21 and the valve hole drill bit 10 are connected to the first spindle 14 by a drill chuck.

[0016] The wheel clamp 5 is fixed to the second worktable 23 by a threaded connection. The second tilting A-axis 22 controls the rotation angle of the second worktable 23 through a worm gear transmission. The second spindle 18 is connected to the bed casting through a guide rail screw. The second servo X-axis 16 and the second servo Z-axis 17 are located on the top of the bed 2, controlling the movement direction of the second spindle 18. The second disc-type tool magazine 20 is fixed on both sides of the bed 2. The bolt hole drill bit 21 and the valve hole drill bit 10 are placed in the second disc-type tool magazine 20. The bolt hole drill bit 21 and the valve hole drill bit 10 are connected to the first spindle 14 through a drill chuck.

[0017] The first disc-type tool magazine 8 and the second disc-type tool magazine 20 are both equipped with drill bits of different specifications for replacement.

[0018] The bed frame is equipped with a first door 11 and a second door 19, which correspond to the positions of the first workbench 4 and the second workbench 23, respectively.

[0019] The chip conveyor 1 is directly fixed to the bottom of the bed 2 to discharge aluminum chips generated during the processing. The opening and closing of the chip conveyor 1 is controlled by the machine tool.

[0020] like Figure 2 As shown, the first servo X-axis 12, the first servo Y-axis 3, the first servo Z-axis 13, the first worktable 4, the wheel clamp 5, the first spindle 14, and the bolt hole drill bit 21 together constitute the bolt hole machining. After the first door 11 is opened, the robotic arm places the wheel 6 to be processed onto the first worktable 4. The wheel clamp 5 clamps the wheel rim to fix the wheel, and the door closes to start the operation. The first servo X-axis 12 drives the first spindle 14, and the first servo Y-axis 3 drives the first worktable 4 to move to the designated position, driving the bolt hole drill bit 21 to directly above the bolt hole. The first servo Z-axis 13 drives the first spindle 14 to quickly move to a safe distance above the bolt hole, and then begins drilling the bolt hole to achieve machining. After the first bolt hole is machined, the drill bit retracts to a safe height. The first servo X-axis 12 and the first servo Y-axis 3 work together to achieve the machining of subsequent bolt holes. After the spindle returns to the origin, the valve hole drill bit 10 in the first disc-type tool magazine 8 changes tools with the bolt hole drill bit 21 on the spindle to begin machining the valve hole.

[0021] The first servo X-axis 12, first servo Y-axis 3, first servo Z-axis 13, first tilting A-axis 7, first worktable 4, wheel clamp 5, first spindle 14, and valve hole drill 10 jointly complete the machining of the valve hole. After the valve hole drill 10 is changed onto the spindle 14, the first servo Y-axis 3 drives the first worktable 4 and the wheel to be machined 6 to move to the designated position. The first tilting A-axis 7 drives the first worktable 4 and the wheel to be machined 6 to tilt to a specific angle via servo drive. The first servo X-axis 12 drives the spindle 14 to move directly above the valve hole. The first servo Z-axis 13 drives the spindle to move quickly to a safe distance above the valve hole socket, and then feeds to drill to realize the machining of the valve hole. After the valve hole drill 10 is withdrawn to a safe height, the spindle 14 drives it back to the origin. The valve hole denting drill 9 in the first disc-type tool magazine 8 changes tools with the valve hole drill 10 on the spindle 14 and begins to machine the valve hole dent.

[0022] The first servo X-axis 12, the first servo Y-axis 3, the first servo Z-axis 13, the first flip A-axis 7, the first worktable 4, the wheel clamp 5, the first spindle 14, and the valve hole denting drill bit 9 together constitute the valve hole denting process. After the valve hole denting drill bit 9 is replaced onto the first spindle 14, the first servo Y-axis 3 does not move, and the first worktable 4 and the wheel to be processed 6 remain in their original positions. The first tilting A-axis 7 rotates to a specific angle, and the first servo X-axis 12 drives the spindle 14 to move directly above the valve hole. At this time, the valve hole denting drill bit 9 does not rotate. Driven by the first servo Z-axis 13, it quickly moves through the valve hole in an eccentric direction. Driven by the first servo X-axis 12, the eccentricity is moved so that the center of the drill shank coincides with the center of the valve hole. After the top of the valve hole denting drill bit 9 has completely passed through the valve hole, the machine tool sets the spindle 14 speed and begins to feed upward to realize the denting of the valve hole. After the denting is completed, the first spindle 14 stops rotating and is driven by the first servo X-axis 12 to move the eccentricity in the original direction. Then, the first servo Z-axis 13 drives the drill bit to retract to a safe height, and finally, the first servo X-axis 12 drives the first spindle 14 back to the origin. The first rotation A-axis 7 returns to 0 degrees, the first door 11 opens, the wheel clamp 5 is released under the action of the servo hydraulic station, the robot arm clamps the wheel and takes it out, and then performs bolt hole chamfering. After the processing is completed, the robot arm puts it on the marking device to mark the steel number, and finally puts it on the track to flow to the next process.

[0023] The second worktable 23 operates on the same principle as the first worktable, as detailed above. Bolt holes, valve holes, and valve hole grooving are machined collaboratively by the second servo X-axis 16, the second servo Y-axis 24, the second servo Z-axis 17, the second tilting A-axis 22, the wheel clamp 5, the second spindle 18, the second disc-type tool magazine 20, and various drill bits. Both workstations can operate independently without interference; if one fails, the other will continue to operate normally without disruption.

[0024] The working process of a dual-spindle dual-channel vertical machining center is as follows: the first door 11 is opened, the robot arm puts the wheel into the first worktable 4, the wheel clamp 5 clamps it, and then the first door 11 is closed and the machine starts to run. The first worktable 4, driven by the first servo Y-axis 3, rapidly moves to the designated position. The first spindle 14, driven by the X-axis, moves to directly above the bolt hole and, driven by the first servo Z-axis 13, performs bolt hole machining. After machining the remaining bolt holes, the first spindle 14 returns to its origin. The first disc-type tool magazine 8 retrieves the valve hole drill bit 10 for tool changing. The first tilting A-axis 7 drives the first worktable 4 to rotate to the designated angle. The valve hole drill bit 10, driven by the X-axis, rapidly moves to directly above the valve hole. The first spindle 14, given a speed, feeds downwards under the drive of the first servo Z-axis 13 to perform valve hole machining. The first spindle 14 returns to its origin. The first disc-type tool magazine 8 replaces the valve hole reaming drill bit 9 for tool changing. The tilting angle of the first worktable 4 is consistent with that when machining the valve hole. The first spindle 14... Driven by the first servo X-axis 12, the drill bit is rapidly moved to a position directly above the valve hole. At this point, the scouring drill bit rotates to zero speed. Driven by the first servo Z-axis 13, the drill bit moves into the valve hole. After the end of the scouring drill bit has completely passed through the valve hole, the eccentricity is adjusted by the first servo X-axis 12 to make the center of the first spindle 14 coincide with the center of the valve hole. The first spindle 14 is given the drill bit speed and feeds upward under the drive of the first servo Z-axis 13 to achieve the scouring of the valve hole. After the scouring is completed, the first spindle 14 moves along the original eccentric direction and retracts along the direction of the first servo Z-axis 13 to a safe distance to return to the origin. The first door 11 is opened, the wheel clamp 5 is released, and the robot arm takes the wheel off the worktable for bolt hole chamfering. After completion, the wheel is placed on the marking device for marking and finally placed on the track for circulation.

[0025] The working process of the wheel on the second workbench 23 is the same as that on the first workbench 4, separated by a sheet metal partition 15. Both workbenches can work independently without affecting each other. During processing, the aluminum chips generated are removed by the chip conveyor 1. After processing, the wheel is removed and enters the next work cycle.

[0026] This invention enables the independent processing of two wheels within a single machine tool, solving the problem of excessively long cycle times when processing complex wheel shapes. It improves processing flexibility and the matching flexibility of processing units, while reducing machine setup difficulty and equipment costs. It allows for independent processing at two separate workstations, significantly improving production efficiency for wheel shapes with insert holes and retaining rings, and resolving the issue of excessively long processing cycles.

[0027] As is known from common technical knowledge, this invention can be implemented through other embodiments that do not depart from its spirit or essential characteristics. Therefore, the disclosed embodiments described above are merely illustrative in all respects and are not the only ones. All modifications within the scope of this invention or its equivalents are included in this invention.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A dual-spindle, dual-channel vertical machining center, characterized in that, It includes a bed, a first worktable, a second worktable, a wheel clamp, a first tilting A-axis, a second tilting A-axis, a first spindle, a second spindle, a first servo X-axis, a second servo X-axis, a first servo Z-axis, a second servo Z-axis, a first disc-type tool magazine, and a second disc-type tool magazine; A first workbench and a second workbench are provided on both sides of the bed, and a wheel clamp is provided on each of the first workbench and the second workbench. The first tilting A-axis is set on the inner wall of the bed and connected to the first worktable. The first spindle is set on the top of the bed through the first servo X-axis and the first servo Z-axis. The first disc-type tool magazine is fixed on one side of the bed. The first disc-type tool magazine is equipped with bolt hole drill bits and valve hole drill bits. The bolt hole drill bits and valve hole drill bits are connected to the first spindle. The second tilting A-axis is mounted on the inner wall of the bed and connected to the second worktable. The second spindle is mounted on the top of the bed via the first servo X-axis and the second servo Z-axis. The second disc-type tool magazine is fixed to one side of the bed. The second disc-type tool magazine is equipped with bolt hole drill bits and valve hole drill bits, which are connected to the second spindle.

2. The dual-spindle, dual-channel vertical machining center as described in claim 1, characterized in that, It also includes a sheet metal partition, which is located between the first and second worktables on the bed.

3. The dual-spindle, dual-channel vertical machining center as described in claim 1, characterized in that, The bolt hole drill bits and valve hole drill bits in the first disc-type tool magazine are connected to the first spindle via a drill chuck; the bolt hole drill bits and valve hole drill bits in the second disc-type tool magazine are connected to the second spindle via a drill chuck.

4. A dual-spindle, dual-channel vertical machining center as described in claim 1, characterized in that, The bed frame is equipped with a No. 1 door and a No. 2 door, which correspond to the positions of the first workbench and the second workbench, respectively.

5. A dual-spindle, dual-channel vertical machining center as described in claim 1, characterized in that, It also includes a chip conveyor, which is fixed to the bottom of the bed.

Images