CN113146259A

CN113146259A - Combined machining center of hub flange plate

Info

Publication number: CN113146259A
Application number: CN202110573801.7A
Authority: CN
Inventors: 郭金锋
Original assignee: Xingtai Guogong Machinery Manufacturing Co ltd
Current assignee: Xingtai Guogong Machinery Manufacturing Co ltd
Priority date: 2021-05-25
Filing date: 2021-05-25
Publication date: 2021-07-23

Abstract

The invention belongs to the technical field of hub flange plate machining, and discloses a combined machining center of a hub flange plate, which comprises a rotary workbench, a drilling mechanism, a chamfering mechanism and a tapping mechanism which are annularly distributed around the rotary workbench, and a plurality of tool fixtures which are detachably arranged on the rotary workbench; a first chip removal machine and a second chip removal machine are respectively arranged on two sides of the chamfering mechanism; the first chip removal machine is arranged below the working position of the drilling mechanism, and the second chip removal machine is arranged below the working position of the tapping mechanism; every frock clamp all includes demountable installation base on swivel work head to and a plurality of anchor clamps subassembly that sets firmly on the base through the mounting panel. When the hub flange is machined, three machining processes of drilling, chamfering and tapping can be respectively completed on the same rotary worktable by using different machining mechanisms, the working efficiency is improved, the smooth finish of the machined hub flange can be improved, and the product quality is ensured.

Description

Combined machining center of hub flange plate

Technical Field

The invention belongs to the technical field of hub flange plate machining, and particularly relates to a combined machining center of a hub flange plate.

Background

Wheel hub ring flange in motorcycle, the car need drilling, chamfer, three manufacturing procedure of tapping when producing, and at present, the mode that realizes above-mentioned manufacturing procedure to the wheel hub ring flange generally has two kinds, nevertheless all has the weak point, specifically is:

1. and (4) respectively finishing three processing procedures of drilling, chamfering and tapping on different machine tools by using different devices. In the mode, when a workpiece is machined, three machining procedures of drilling, chamfering and tapping can be completed only by carrying out turnover and positioning clamping on different machine tools for multiple times, a large amount of time of workers is seriously consumed by the aid of the positioning clamping for multiple times, and machining efficiency is very low.

2. The tool magazine is installed on the same equipment on the same machine tool, different tools in the tool magazine are selected by rotating the tool magazine, and then three processing procedures of drilling, chamfering and tapping are completed. In the mode, when a workpiece is machined, the cutter needs to be frequently rotated and replaced, three machining processes of drilling, chamfering and tapping can be completed, the workpiece cannot be machined when the cutter is replaced, the equipment is discontinuous in work, and the work efficiency is relatively low.

And the tool magazine works with the help of the mechanical arm of the same equipment, only the same cooling liquid can be adopted in the drilling and tapping machining procedures, the pertinence is poor, and the cooling liquid can only be matched with a certain machining procedure in the drilling and tapping, so that the machining precision of the hub flange plate is poor, the smoothness of the machined hub flange plate cannot be guaranteed, and the product quality is relatively low.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the combined machining center of the hub flange plate, so that three machining processes of drilling, chamfering and tapping are completed on the same equipment, the working efficiency is improved, the smoothness of the machined hub flange plate can be ensured, and the product quality is further improved.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a combined machining center of a hub flange plate comprises a rotary workbench, a drilling mechanism, a chamfering mechanism and a tapping mechanism which are annularly distributed around the rotary workbench, and a plurality of tool fixtures which are detachably arranged on the rotary workbench;

a first chip removal machine and a second chip removal machine are respectively arranged on two sides of the chamfering mechanism; the first chip removal machine is arranged below the working position of the drilling mechanism, and the second chip removal machine is arranged below the working position of the tapping mechanism;

every frock clamp all includes demountable installation base on swivel work head to and a plurality of anchor clamps subassembly that sets firmly on the base through the mounting panel.

As the limitation of the invention, the clamp assembly comprises a positioning shaft fixedly arranged on the mounting plate and an expansion sleeve which is sleeved on the positioning shaft in a sliding manner; and a locking bolt capable of locking and fixing the expansion sleeve and the positioning shaft is arranged in the inner cylinder of the expansion sleeve.

As a further limitation of the invention, a plurality of springs are fixedly arranged on the outer peripheral surface of the expansion sleeve from top to bottom in sequence.

As another limitation of the invention, a first hydraulic torque wrench for screwing a locking bolt is arranged at the working position of the drilling mechanism on the rotary worktable; and a second hydraulic torque wrench for screwing the locking bolt is arranged at the working position of the tapping mechanism on the rotary worktable.

As a further limitation of the present invention, the first chip discharging machine comprises a first scraper conveyor and a first filtering water tank arranged on one side of the first scraper conveyor; the second chip removal machine comprises a second scraper conveyor and a second filtering water tank arranged on one side of the second scraper conveyor.

As other limitations of the present invention, the drilling mechanism includes a first robot arm, and a drilling tool provided on the first robot arm; the chamfering mechanism comprises a second mechanical arm and a chamfering tool arranged on the second mechanical arm; the tapping mechanism comprises a third mechanical arm and a tapping cutter arranged on the third mechanical arm;

wherein, one side of the drilling tool is provided with a first cooling liquid spray head communicated with a first filtering water tank; and a second cooling liquid spray head communicated with the second filtering water tank is arranged on one side of the tapping cutter.

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:

(1) according to the invention, three processing procedures of drilling, chamfering and tapping of the hub flange plate are integrated on the same rotary worktable and are respectively completed by different processing mechanisms, repeated tool changing and workpiece transferring and clamping processes are not required, the working continuity is ensured, the working efficiency is improved, meanwhile, the hub flange plate can be drilled or tapped by using cooling liquid with higher pertinence (cutting liquid is used during drilling, tapping oil is used during tapping), the tapping smoothness of the hub flange plate is improved, and the quality of a processed product is ensured.

(2) The plurality of clamp assemblies in each tool clamp are detachably fixed on the base by using the same mounting plate, and the simplicity of operation and the convenience of maintenance are further realized on the premise of ensuring firm mounting and reliable work.

(3) Each clamp assembly comprises a positioning shaft and an expansion sleeve, wherein the positioning shaft can ensure that a workpiece is positioned on a rotary workbench with high precision; and the expansion sleeve can make the disassembly and assembly of the workpiece on the rotary worktable more simple and convenient.

(4) According to the invention, the plurality of springs are arranged on the outer peripheral surface of the expansion sleeve, so that when the hub flange plate is expanded and fastened, the uniformity of force application on the hub flange plate and the firmness of fixation can be ensured, and the abrasion or scratch on the central hole of the hub flange plate is avoided; meanwhile, the arrangement of the spring also enables the expansion sleeve to have certain elastic deformation, so that the expansion sleeve can be prevented from being broken due to overlarge stress to a certain extent.

(5) The first hydraulic torque wrench and the second hydraulic torque wrench are arranged on the rotary workbench, when a hub flange plate is machined, a worker can sleeve a workpiece in the expansion sleeve on the rotary workbench without excessive operation, and the first hydraulic torque wrench can automatically screw the locking bolt to fix the workpiece; after the machining is finished, the second hydraulic torque wrench can automatically twist the locking bolt, so that the workpiece is loosened and separated from the tool clamp. The invention has high automation degree and low labor intensity of workers, can save the time for replacing and clamping workpieces and can greatly accelerate the working process.

(6) The first chip removal machine and the second chip removal machine comprise scraper conveyors and filter water tanks, wherein the scraper conveyors have large conveying flow, and can efficiently collect metal scraps generated in the working process; the filtering water tank can recycle the cooling liquid, so that the cooling liquid can be recycled.

(7) The mechanical arms arranged in the drilling mechanism, the chamfering mechanism and the tapping mechanism respectively can realize accurate adjustment of the positions of corresponding cutters, can process a plurality of workpieces at one time, and ensures higher processing angles of the cutters.

Drawings

The invention is described in further detail below with reference to the figures and the embodiments.

FIG. 1 is a top view of a structural relationship of an embodiment of the present invention;

FIG. 2 is a top view of a structural relationship of a tooling fixture according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a structural relationship of a clamp assembly according to an embodiment of the present invention;

in the figure: 1. rotating the working table; 2. a drilling mechanism; 3. a chamfering mechanism; 4. a tapping mechanism; 5. a first chip remover; 6. a second chip removal machine; 7. a tooling fixture; 8. a base; 9. positioning the shaft; 10. expanding sleeves; 11. locking the bolt; 12. a spring; 13. a first hydraulic torque wrench; 14. a second hydraulic torque wrench.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the description of the preferred embodiment is only for purposes of illustration and understanding, and is not intended to limit the invention.

Embodiment combination machining center of hub ring flange

As shown in fig. 1, the present embodiment includes a rotary table 1, and drilling means 2, chamfering means 3, and tapping means 4 annularly distributed around the rotary table 1 in the rotational direction of the rotary table 1. When the wheel hub flange plate is machined, the rotary workbench 1 can quickly transfer workpieces, and then the drilling mechanism 2, the chamfering mechanism 3 and the tapping mechanism 4 can be guaranteed to respectively complete corresponding drilling, chamfering and tapping operations on the workpieces.

In this embodiment, a first chip removal machine 5 and a second chip removal machine 6 are further respectively disposed below the rotary table 1 and on two sides of the chamfering mechanism 3. The first chip discharging machine 5 is arranged below the working position of the drilling mechanism 2 and comprises a first scraper conveyor and a first filter water tank arranged on one side of the first scraper conveyor, wherein the first scraper conveyor is used for cleaning and collecting scraps produced when the drilling mechanism 2 drills a workpiece, and the first filter water tank is used for recycling cooling liquid, namely cutting liquid used in drilling. The second chip removal machine 6 is arranged below the working position of the tapping mechanism 4 and comprises a second scraper conveyor and a second filter water tank arranged on one side of the second scraper conveyor, wherein the second scraper conveyor is used for cleaning and collecting scraps generated when the tapping mechanism 4 taps a workpiece, and the second filter water tank is used for recycling and reusing cooling liquid, namely tapping oil, used in tapping.

It should be noted here that the first chip remover 5 and the second chip remover 6 adopted in the present embodiment are the prior art with the same structure, so the present embodiment only describes the setting position and the functional function of the first chip remover 5 and the second chip remover 6, and does not specifically describe the structure of the first chip remover 5 and the second chip remover 6.

The drilling mechanism 2, the chamfering mechanism 3 and the tapping mechanism 4 are annularly distributed around the rotary workbench 1 along the rotating direction of the rotary workbench 1. Wherein, drilling mechanism 2 is used for carrying out drilling operation to the work piece, including first robotic arm and locate the drilling cutter on swivel work head 1 through first robotic arm suspension to, one side of drilling cutter is equipped with the first coolant liquid shower nozzle that is linked together with first filtration water tank, and when drilling to the work piece, drilling cutter, work piece are cooled down to the first coolant liquid shower nozzle spun smear metal liquid of accessible. The chamfering mechanism 3 is used for chamfering a workpiece and comprises a second mechanical arm and a chamfering tool suspended on the rotary workbench 1 through the second mechanical arm. Tapping mechanism 4 is used for carrying out the tapping operation to the work piece, including the third arm and locate the tapping cutter on swivel work head 1 through the suspension of third arm to, one side of tapping cutter is equipped with the second coolant liquid shower nozzle that is linked together with the second filtration water tank, and when the tapping to the work piece, accessible second coolant liquid shower nozzle spun attacks tooth oil and carries out cooling to tapping cutter, work piece, with the tooth smooth finish of attacking that improves the wheel hub ring flange.

It should be noted here that the first mechanical arm, the second mechanical arm, and the third mechanical arm included in each of the drilling mechanism 2, the chamfering mechanism 3, and the tapping mechanism 4 in this embodiment are three-degree-of-freedom mechanical arms of conventional structures.

The rotary workbench 1 is used for rapidly transferring workpieces, and further ensures that the drilling mechanism 2, the chamfering mechanism 3 and the tapping mechanism 4 can respectively complete corresponding drilling, chamfering and tapping operations on the workpieces. The rotary worktable 1 in the embodiment is a fourth shaft rotary worktable 1, and a plurality of tool fixtures 7 are uniformly distributed on the rotary worktable 1 to realize the rapid clamping of the workpiece on the rotary worktable 1. As shown in fig. 2, each of the tool fixtures 7 includes a base 8 detachably mounted on the rotary table 1 by bolts, and a plurality of fixture assemblies fixedly mounted on the base 8. In this embodiment, each of the tooling fixtures 7 is provided with six fixture assemblies, and the six fixture assemblies are uniformly distributed on the base 8 through the same mounting plate.

More specifically, as shown in fig. 3, each clamp assembly includes a positioning shaft 9 fixed to the mounting plate by bolts, and an expansion sleeve 10 slidably fitted over the positioning shaft 9. The inner cylinder of the expansion sleeve 10 is provided with a locking bolt 11, the center hole of the positioning shaft 9 is provided with a matched thread, and after the workpiece is sleeved on the expansion sleeve 10, the expansion sleeve 10 and the positioning shaft 9 can be further fixed by using the locking bolt 11, so that the expansion sleeve 10 expands on the positioning shaft 9, and the workpiece is further expanded and fixed.

When the workpiece is tightened, in order to ensure the uniformity and firmness of the force application of the expansion sleeve 10 to the workpiece, a plurality of springs 12 are sequentially arranged on the outer peripheral surface of the expansion sleeve 10 from top to bottom in a surrounding manner. In this embodiment, two springs 12 are provided on the outer peripheral surface of the expansion sleeve 10.

Furthermore, the rotary table 1 is provided with a first hydraulic torque wrench 13 and a second hydraulic torque wrench 14 for screwing the locking bolt 11. As shown in fig. 1, the first hydraulic torque wrench 13 is fixedly arranged on the rotary table 1 at a position opposite to the drilling mechanism 2, and when the work fixture 7 on the rotary table 1 rotates to the working position of the drilling mechanism 2, the first hydraulic torque wrench 13 is just below the work fixture 7; the second hydraulic torque wrench 14 is fixedly arranged at a position, opposite to the tapping mechanism 4, on the rotary worktable 1, and when the tooling fixture 7 on the rotary worktable 1 rotates to the working position of the tapping mechanism 4, the second hydraulic torque wrench 14 is just positioned below the tooling fixture 7. Matched with, all set up the through-hole with the same axle center of 9 centre holes of location on base 8 and the mounting panel in the frock clamp 7. When the tool clamp 7 is located at the working position of the drilling mechanism 2, the power output end of the first hydraulic torque wrench 13 can penetrate through holes in the base 8 and the mounting plate and go deep into the central hole of the positioning shaft 9, and the locking bolt 11 is fixed and twisted from the lower part to expand the expansion sleeve 10 on the positioning shaft 9, so that the workpiece is automatically tensioned and fixed; when the tooling fixture 7 is located at the working position of the tapping mechanism 4, the power output end of the second hydraulic torque wrench 14 can penetrate through the through holes on the base 8 and the mounting plate and go deep into the central hole of the positioning shaft 9, the locking bolt 11 is fixed and twisted from the lower part, the expansion sleeve 10 on the positioning shaft 9 is contracted, and then the loosening and the separation of the workpiece and the expansion sleeve 10 are automatically realized.

The working process of this embodiment is as follows:

firstly, a plurality of work fixtures 7 are installed on the rotary workbench 1, then a plurality of workpieces are sleeved on the expansion sleeves 10 of the work fixtures 7 one by one, and the equipment is started. Here, the four work fixtures 7 are uniformly distributed on the rotary table 1 as an example to describe the working process:

s1, the rotary workbench 1 rotates to work, the work is stopped until one of the work fixtures 7 is located at the working position of the drilling mechanism 2, the first hydraulic torque wrench 13 works at the moment, the locking bolt 11 is twisted to enable the workpiece to be tightly fixed on the work fixtures 7, and after clamping is completed, the drilling mechanisms 2 drill the workpiece one by one.

And S2, stopping after the rotary worktable 1 rotates by 90 degrees, chamfering the drilled workpieces one by the chamfering mechanism 3, and simultaneously, synchronously performing the step S1, and processing the next group of workpieces by the first hydraulic torque wrench 13 and the drilling mechanism 2.

And S3, stopping after the rotary workbench 1 rotates for 90 degrees again, chamfering the chamfered workpieces one by the tapping mechanism 4, then working by the second hydraulic torque wrench 14, and reversely twisting the locking bolt 11 to loosen and separate the tapped workpieces from the tool clamp 7. Simultaneously, steps S1 and S2 are performed simultaneously, and the first hydraulic torque wrench 13, the drilling mechanism 2, and the tapping mechanism 4 perform machining on the next group of workpieces.

And S4, stopping after the rotary workbench 1 rotates for 90 degrees again, and replacing the workpiece on the tool clamp 7 by a worker.

With the continuous rotation of the rotary table 1, the steps S1-S4 are repeated in a circulating manner, and the processing operations of drilling, chamfering and tapping are continuously carried out on the workpiece.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a combination machining center of hub ring flange which characterized in that: the drilling machine comprises a rotary workbench, a drilling mechanism, a chamfering mechanism and a tapping mechanism which are annularly distributed around the rotary workbench, and a plurality of tool fixtures which are detachably arranged on the rotary workbench;

2. The hub flange unitized machining center of claim 1, wherein: the clamp assembly comprises a positioning shaft fixedly arranged on the mounting plate and an expansion sleeve sleeved on the positioning shaft in a sliding manner; and a locking bolt capable of locking and fixing the expansion sleeve and the positioning shaft is arranged in the inner cylinder of the expansion sleeve.

3. The hub flange unitized machining center of claim 2, wherein: the outer peripheral surface of the expansion sleeve is fixedly provided with a plurality of springs from top to bottom in sequence.

4. A hub flange combination machining center according to claim 2 or 3, wherein: a first hydraulic torque wrench for screwing the locking bolt is arranged at the working position of the drilling mechanism on the rotary worktable; and a second hydraulic torque wrench for screwing the locking bolt is arranged at the working position of the tapping mechanism on the rotary worktable.

5. The hub flange unitized machining center of claim 4, wherein: the first chip discharging machine comprises a first scraper conveyor and a first filtering water tank arranged on one side of the first scraper conveyor; the second chip removal machine comprises a second scraper conveyor and a second filtering water tank arranged on one side of the second scraper conveyor.

6. The hub flange combination machining center of any one of claims 1 to 3 and 5, wherein: the drilling mechanism comprises a first mechanical arm and a drilling tool arranged on the first mechanical arm; the chamfering mechanism comprises a second mechanical arm and a chamfering tool arranged on the second mechanical arm; the tapping mechanism comprises a third mechanical arm and a tapping cutter arranged on the third mechanical arm;