A milling machine tool and milling method for both sides of a bridge housing brake bottom plate

Abstract

The present invention discloses a machine tool and a milling method for milling both side surfaces of a bridge housing brake bottom plate, comprising a base and a portal support arranged on the base, wherein an X-axis slide is arranged on the base, and a brake clamp is arranged on the X-axis slide, through which the bridge housing brake can be clamped and the processing angle can be adjusted; a Z1-axis slide and a Z2-axis slide are arranged in parallel on the portal support; a milling head is respectively arranged on the Z1-axis slide and the Z2-axis slide, and the milling head can be respectively driven to move horizontally by the Z1-axis slide and the Z2-axis slide, so as to realize the milling processing of both side surfaces of the bridge housing brake bottom plate; the present invention realizes the milling processing of both side surfaces of the bridge housing brake bottom plate at the same time by setting the X-axis slide, the Z1-axis slide and the Z2-axis slide, and respectively arranging the milling heads on the Z1-axis slide and the Z2-axis slide, thereby significantly improving the processing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical milling equipment, and in particular to a milling machine tool and a milling method for milling both side surfaces of a bridge housing brake bottom plate. Background Art

[0002] The axle housing brake is an important component on the vehicle. The axle housing brake is connected to the vehicle chassis components by means of the bosses on both end surfaces of the axle housing brake bottom plate. Due to the need for installation, the bosses on both end surfaces of the axle housing brake bottom plate usually need to be milled on both sides to ensure the installation accuracy. At present, the two end surfaces of the axle housing brake bottom plate are usually processed by a butt turning machine. The two end surfaces are processed by the rotation of the axle housing and the feeding of the tool. This is intermittent cutting, and the workpiece rotation speed is low, which makes it easy to break the tool, resulting in low processing accuracy, high cost, and slow efficiency. Based on this, in order to solve the above problems, a milling machine tool for the two side surfaces of the axle housing brake bottom plate and a milling method thereof are provided to ensure the processing accuracy of the workpiece, improve efficiency, and reduce costs. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a milling machine tool for both sides of a bridge housing brake bottom plate, which has a reasonable structural design and uses continuous milling instead of intermittent turning.

[0004] The technical solution of the present invention is as follows:

[0005] A machine tool for milling both sides of a bridge housing brake base plate, comprising a base, a gantry support, an X-axis slide, a brake fixture, a Z1-axis slide, and a Z2-axis slide. The X-axis slide is arranged on the base, and the brake fixture is fixedly mounted on the X-axis slide. The gantry support is fixedly mounted on the base in a gantry layout, and a Z1-axis slide and a Z2-axis slide are arranged side by side on the gantry support; a milling head is respectively provided on the Z1-axis slide and the Z2-axis slide, and the milling head can be driven to move horizontally by the Z1-axis slide and the Z2-axis slide, thereby realizing the milling processing of both sides of the bridge housing brake base plate.

[0006] Furthermore, the portal support includes a column and a crossbeam, the two columns are arranged at both sides of the base, and the crossbeam is arranged on the top of the two columns, forming a gantry layout. The X-axis slide is arranged on the base and reciprocates under the portal support.

[0007] Furthermore, the Z1-axis slide and the Z2-axis slide are respectively arranged on the crossbeam of the gantry support, and the Z1-axis slide and the Z2-axis slide are respectively provided with detection mechanisms, and the detection mechanisms include a driving module and a probe, and the probe is arranged on the driving module and can be extended and retracted up and down through the driving module.

[0008] Furthermore, the brake clamp includes a fixed seat, a sliding seat and a rotating support, the sliding seat can move horizontally to adjust the distance between the fixed seat and the sliding seat; the rotating support is respectively arranged on the fixed seat and the sliding seat, and the two ends of the bridge housing brake are respectively fixed on the rotating supports on the fixed seat and the sliding seat, and the processing angle adjustment and positioning of the bridge housing brake can be achieved under the action of the rotating support.

[0009] Furthermore, the rotating support includes a support body, a rotating seat and a positioning seat. The rotating seat is movably connected to the support body. An arc-shaped rack is provided at the bottom of the rotating seat. A spur rack is provided on the support body. A rack cylinder is connected to the spur rack. Under the drive of the rack cylinder, the relative movement between the rotating seat and the support body is achieved through the cooperation of the spur rack and the arc-shaped rack.

[0010] Furthermore, the rotating seat is provided with a first groove matching with the bridge housing brake base plate, and a second groove matching with the middle part of the bridge housing brake shaft end. The rotating seat is provided with a side support cylinder on the inner wall on one side of the first groove, and a lower support cylinder is provided at the bottom of the first groove. A supporting clamping cylinder is provided at the bottom of the first groove at a position opposite to the side supporting cylinder. The bridge housing brake base plate is clamped by the side supporting cylinder, the lower supporting cylinder and the supporting clamping cylinder.

[0011] Furthermore, the positioning seat is arranged on one side of the rotating seat, and the positioning seat is provided with a third groove that cooperates with the tail end of the bridge housing brake shaft end. The positioning seat is provided with a side positioning cylinder on the side of the third groove, and the positioning seat is provided with an upper clamping cylinder on the side above the third groove.

[0012] Furthermore, a locking positioning oil cylinder is also provided on the positioning seat, and the locking positioning oil cylinder can realize the locking positioning of the positioning seat and the rotating seat on the support body after adjustment.

[0013] The milling method of the milling machine tool for the two side surfaces of the bridge housing brake bottom plate comprises the following steps:

[0014] 1) Initially, the X-axis slide is in the loading position, the locking positioning cylinder is in the locked state, and the rack cylinder remains in the pushed-out state;

[0015] 2) Place the workpiece on the brake fixture, press the side positioning cylinder, press the upper pressing cylinder, press the side supporting cylinder, press the lower supporting cylinder, and press the supporting pressing cylinder;

[0016] 3) The X-axis slide drives the workpiece forward to the detection position, the probe is extended under the drive module, and the Z1-axis slide and the Z2-axis slide respectively drive the probe to move for detection and touch the workpiece detection point. Once the workpiece detection point is touched, the Z1-axis slide and the Z2-axis slide stop running respectively, and the data at this time, that is, the workpiece cutting position, is recorded and calculated. After the detection is completed, the Z1-axis slide and the Z2-axis slide retract, and the probe is retracted under the drive module;

[0017] 4) The X-axis slide drives the workpiece back to the processing position, the Z1-axis slide and the Z2-axis slide drive the milling head to the position of milling the inner side, and the X-axis slide moves forward to mill the front of the inner side. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head to move away from the workpiece;

[0018] 5) The X-axis slide moves backward, the locking and positioning cylinder is released, the rack cylinder is retracted to rotate the workpiece, the locking and positioning cylinder is pressed, the Z1-axis slide and the Z2-axis slide respectively drive the milling head to the position of milling the inner side surface, the X-axis slide moves forward, and the back of the inner side surface is milled. After milling, the Z1-axis slide and the Z2-axis slide respectively drive the milling head to move away from the workpiece;

[0019] 6) The X-axis slide moves backward, the Z1-axis slide and the Z2-axis slide drive the milling head to the position of milling the outer side surface, and the X-axis slide moves forward to mill the back of the outer side surface. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head to move away from the workpiece;

[0020] 7) The X-axis slide moves backward, releases the locking positioning cylinder, pushes the rack cylinder to rotate the workpiece, presses the locking positioning cylinder, and the Z1-axis slide and the Z2-axis slide drive the milling head to the milling outer side position respectively. The X-axis slide moves forward to mill the front of the outer side. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head back to the initial position respectively;

[0021] 8) The X-axis slide moves back to the loading position, loosen the support clamping cylinder, loosen the side support cylinder, loosen the lower support cylinder, loosen the upper clamping cylinder, and loosen the side positioning cylinder;

[0022] 9) Remove the workpiece and complete the processing.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1) The present invention can realize milling processing on both sides of the bridge housing brake bottom plate at the same time by setting up an X-axis slide, a Z1-axis slide and a Z2-axis slide, and respectively setting a milling head on the Z1-axis slide and the Z2-axis slide, so as to realize continuous cutting without tool breakage, improve processing accuracy and efficiency, and reduce costs.

[0025] 2) The present invention can adjust the processing angle of the workpiece by arranging a rotating support on the X-axis slide, thereby realizing integrated processing of the front and rear sides of both sides of the bridge housing brake bottom plate, which significantly improves the processing accuracy.

[0026] 3) The present invention can realize fully automated processing of both side surfaces of the bridge housing brake bottom plate, and can accurately position the two side surfaces through the detection mechanism, thereby ensuring the processing accuracy and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the rotating support structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the front structure of the overall structure of the present invention;

[0030] Figure 4 It is a schematic diagram of the structure of the detection mechanism of the present invention;

[0031] Figure 5 It is a schematic diagram of the workpiece structure of the present invention;

[0032] Figure 6 It is a processing flow chart of the present invention;

[0033] In the figure: 1. base; 2. workpiece; 3. rotating support; 301. support body; 302. lower supporting cylinder; 303. side supporting cylinder; 304. upper clamping cylinder; 305. side positioning cylinder; 306. third groove; 307. positioning seat; 308. second groove; 309. rotating seat 310. first groove; 311. supporting clamping cylinder; 312. spur rack; 313. locking positioning cylinder; 314. rack cylinder; 4. column; 5. Z1-axis slide; 6. crossbeam; 7. milling head; 8. Z2-axis slide; 9. detection mechanism; 901. drive module; 902. probe; 10. X-axis slide; 11. fixed seat; 12. sliding seat. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the accompanying drawings.

[0035] like Figure 1-6As shown, a milling machine tool for both sides of the bottom plate of the bridge housing brake includes a base 1, a column 4, a crossbeam 6, a brake fixture, an X-axis slide 10, a Z1-axis slide 5, a Z2-axis slide 8 and a milling head 7. The workpiece 2 is placed on the brake fixture, and the X-axis slide transports the workpiece to the processing position. The detection mechanisms installed on the Z1-axis slide and the Z2-axis slide respectively extend the probes and rely on the feed of the Z1-axis slide and the Z2-axis slide to touch the workpiece detection point. Once the workpiece detection point is touched, the Z1-axis slide and the Z2-axis slide stop running respectively, record and calculate the data at this time, that is, the workpiece cutting position, retract the probe of the detection mechanism, and the milling head starts to drive the milling cutter disc to operate, and the workpiece is processed according to the data collected by the detection mechanism.

[0036] The two columns 4 are respectively arranged at two sides of the upper plane of the base 1 , and the cross beam 6 is located between the tops of the two columns 4 . The two columns 4 and the cross beam 6 form a portal support structure on the base 1 .

[0037] The X-axis slide 10 is arranged on the base 1, the Z1-axis slide 5 and the Z2-axis slide 8 are arranged side by side on the crossbeam 6, and the milling head 7 is respectively configured on the Z1-axis slide 5 and the Z2-axis slide 8, so that the left and right bosses of the bridge housing brake bottom plate can be milled at the same time, thereby improving the processing efficiency.

[0038] The Z1-axis slide 5 and the Z2-axis slide 8 are respectively provided with a detection mechanism 9, which includes a driving module 901 and a probe 902. The probe 902 is arranged at the bottom of the driving module 901. The driving module 901 can drive the probe 902 to perform up and down telescopic movements. The detection mechanism can collect data of the workpiece, thereby realizing precise processing of the workpiece.

[0039] The brake fixture is arranged on the X-axis slide 10, and the brake fixture includes a fixed seat 11, a sliding seat 12 and two rotating supports 3. The sliding seat 12 can move horizontally on the X-axis slide 10, so as to adjust the distance between the fixed seat 11 and the sliding seat 12 to adapt to workpieces of different sizes; the rotating supports 3 are respectively arranged on the fixed seat 11 and the sliding seat 12, and the two ends of the bridge housing brake are respectively arranged on the rotating supports 3 on the fixed seat 11 and the sliding seat 12, and under the action of the rotating supports 3, the processing angle adjustment of the bridge housing brake and the workpiece positioning can be realized.

[0040] The rotating support 3 includes a support body 301, a rotating seat 309 and a positioning seat 307. The rotating seat 309 is movably connected to the support body 301. The support body 301 is provided with an arc-shaped protrusion, and the rotating seat 309 is provided with an arc-shaped groove. The rotating seat 309 cooperates with the arc-shaped protrusion on the support body 301 through the arc-shaped groove. The size of the arc-shaped protrusion is smaller than the arc-shaped groove, so that the rotating seat 309 can rotate relative to the support body 301; an arc-shaped rack is provided at the bottom of the rotating seat 309, and a spur rack 312 is provided on the support body 301. The spur rack 312 is connected to a rack cylinder 314. Under the drive of the rack cylinder 314, the spur rack 312 cooperates with the arc-shaped rack to achieve relative movement between the rotating seat 309 and the support body 301.

[0041] The rotating seat 309 is provided with a first groove 310 matched with the bridge housing brake base plate and a second groove 308 matched with the middle part of the bridge housing brake shaft end. A side support cylinder 303 is provided on the rotating seat 309 on the inner wall of one side of the first groove 310, a lower support cylinder 302 is provided at the bottom of the first groove 310, and a supporting clamping cylinder 311 is provided at the bottom of the first groove 310 at a position opposite to the side support cylinder 303. The bridge housing brake base plate can be clamped by the side support cylinder 303, the lower support cylinder 302 and the supporting clamping cylinder 311.

[0042] The positioning seat 307 is arranged on one side of the rotating seat 309, and is provided with a third groove 306 which cooperates with the tail end of the bridge housing brake shaft end. The positioning seat 307 is provided with a side positioning cylinder 305 on the side of the third groove 306, and the positioning seat 307 is provided with an upper clamping cylinder 304 on the side above the third groove 306.

[0043] In this embodiment, the first groove 310 is a trapezoidal groove, the second groove 308 is a semicircular groove, and the third groove 306 is a V-shaped groove.

[0044] The positioning seat 307 is also provided with a locking positioning oil cylinder 313 , which can realize the adjusted locking positioning of the positioning seat 307 and the rotating seat 309 on the support body 301 .

[0045] A milling method for a bridge housing brake bottom plate with a milling machine tool on both sides, the specific steps are as follows:

[0046] 1) Initially, the X-axis slide is in the loading position, the locking positioning cylinder is in the locked state, and the rack cylinder remains in the pushed-out state;

[0047] 2) Place the workpiece on the brake fixture, press the side positioning cylinder, press the upper pressing cylinder, press the side supporting cylinder, press the lower supporting cylinder, and press the supporting pressing cylinder;

[0048] 3) The X-axis slide drives the workpiece forward to the detection position, the probe is extended under the drive module, and the Z1-axis slide and the Z2-axis slide respectively drive the probe to move for detection and touch the workpiece detection point. Once the workpiece detection point is touched, the Z1-axis slide and the Z2-axis slide stop running respectively, and the data at this time, that is, the workpiece cutting position, is recorded and calculated. After the detection is completed, the Z1-axis slide and the Z2-axis slide retract, and the probe is retracted under the drive module;

[0049] 4) The X-axis slide drives the workpiece back to the processing position, the Z1-axis slide and the Z2-axis slide drive the milling head to the position of milling the inner side, and the X-axis slide moves forward to mill the front of the inner side. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head to move away from the workpiece;

[0050] 5) The X-axis slide moves backward, the locking and positioning cylinder is released, the rack cylinder is retracted to rotate the workpiece, the locking and positioning cylinder is pressed, the Z1-axis slide and the Z2-axis slide respectively drive the milling head to the position of milling the inner side surface, the X-axis slide moves forward, and the back of the inner side surface is milled. After milling, the Z1-axis slide and the Z2-axis slide respectively drive the milling head to move away from the workpiece;

[0051] 6) The X-axis slide moves backward, the Z1-axis slide and the Z2-axis slide drive the milling head to the position of milling the outer side surface, and the X-axis slide moves forward to mill the back of the outer side surface. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head to move away from the workpiece;

[0052] 7) The X-axis slide moves backward, releases the locking positioning cylinder, pushes the rack cylinder to rotate the workpiece, presses the locking positioning cylinder, and the Z1-axis slide and the Z2-axis slide drive the milling head to the milling outer side position respectively. The X-axis slide moves forward to mill the front of the outer side. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head back to the initial position respectively;

[0053] 8) The X-axis slide moves back to the loading position, loosen the support clamping cylinder, loosen the side support cylinder, loosen the lower support cylinder, loosen the upper clamping cylinder, and loosen the side positioning cylinder;

[0054] 9) Remove the workpiece and complete the processing.

[0055] The above embodiments are only preferred embodiments of the present invention and are not limitations of the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A machine tool for milling both sides of a bridge housing brake bottom plate, characterized in that: It includes a base, a gantry support, an X-axis slide, a brake fixture, a Z1-axis slide and a Z2-axis slide; the X-axis slide is arranged on the base, and the brake fixture is fixedly installed on the X-axis slide; the gantry support is fixedly installed on the base in a gantry layout, and the Z1-axis slide and the Z2-axis slide are arranged in parallel on the gantry support; the Z1-axis slide and the Z2-axis slide are respectively provided with milling heads, and the Z1-axis slide and the Z2-axis slide can be respectively driven to move horizontally, so as to realize the milling processing of the two sides of the bridge housing brake bottom plate; The Z1-axis slide and the Z2-axis slide are respectively provided with a detection mechanism, the detection mechanism includes a driving module and a probe, the probe is arranged on the driving module, and can be extended and retracted up and down through the driving module; The brake fixture comprises a fixed seat, a sliding seat and a rotating support, the sliding seat can move horizontally to adjust the distance between the fixed seat and the sliding seat; the rotating support is respectively arranged on the fixed seat and the sliding seat, and the two ends of the bridge housing brake are respectively fixed on the rotating supports on the fixed seat and the sliding seat, and the processing angle adjustment and positioning of the bridge housing brake can be achieved under the action of the rotating support; The rotating support comprises a support body, a rotating seat and a positioning seat, the rotating seat is movably connected to the support body, an arc-shaped rack is provided at the bottom of the rotating seat, a spur rack is provided on the support body, a rack oil cylinder is connected to the spur rack, and under the drive of the rack oil cylinder, the spur rack and the arc-shaped rack cooperate to achieve relative movement between the rotating seat and the support body; The rotating seat is provided with a first groove matched with the bridge housing brake bottom plate, and a second groove matched with the middle part of the bridge housing brake shaft end. The rotating seat is provided with a side support oil cylinder on the inner wall on one side of the first groove, a lower support oil cylinder is provided at the bottom of the first groove, and a support clamping oil cylinder is provided at the bottom of the first groove at a position opposite to the side support oil cylinder, and the bridge housing brake bottom plate is clamped by the side support oil cylinder, the lower support oil cylinder and the support clamping oil cylinder; The positioning seat is arranged at one side of the rotating seat, the positioning seat is provided with a third groove matched with the tail of the axle housing brake shaft end, the positioning seat is provided with a side positioning cylinder at the side of the third groove, and the positioning seat is provided with an upper clamping cylinder at one side above the third groove; The positioning seat is also provided with a locking positioning oil cylinder, and the locking positioning oil cylinder can realize the locking positioning of the positioning seat and the rotating seat on the support body after adjustment.

2. A milling machine for both sides of a bridge housing brake bottom plate according to claim 1, characterized in that: The portal support comprises a column and a crossbeam, wherein two columns are arranged at both sides of the base, and the crossbeam is arranged on the top of the two columns; the X-axis slide table reciprocates under the portal support.

3. A milling machine for both sides of a bridge housing brake bottom plate according to claim 2, characterized in that: The Z1 axis slide and the Z2 axis slide are respectively arranged on the cross beams of the portal support.

4. A milling method for a bridge housing brake bottom plate with a milling machine tool on both sides according to any one of claims 1 to 3, characterized in that: The steps include: 1) Initially, the X-axis slide is in the loading position, the locking positioning cylinder is in the locked state, and the rack cylinder remains in the pushed-out state; 2) Place the workpiece on the brake fixture, press the side positioning cylinder, press the upper pressing cylinder, press the side supporting cylinder, press the lower supporting cylinder, and press the supporting pressing cylinder; 3) The X-axis slide drives the workpiece forward to the detection position, the probe is extended under the drive module, and the Z1-axis slide and the Z2-axis slide respectively drive the probe to move for detection and touch the workpiece detection point. Once the workpiece detection point is touched, the Z1-axis slide and the Z2-axis slide stop running respectively, and the data at this time, that is, the workpiece cutting position, is recorded and calculated. After the detection is completed, the Z1-axis slide and the Z2-axis slide retract, and the probe is retracted under the drive module; 4) The X-axis slide drives the workpiece back to the processing position, the Z1-axis slide and the Z2-axis slide drive the milling head to the position of milling the inner side, and the X-axis slide moves forward to mill the front of the inner side. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head to move away from the workpiece; 5) The X-axis slide moves backward, the locking and positioning cylinder is released, the rack cylinder is retracted to rotate the workpiece, the locking and positioning cylinder is pressed, the Z1-axis slide and the Z2-axis slide respectively drive the milling head to the position of milling the inner side surface, the X-axis slide moves forward, and the back of the inner side surface is milled. After milling, the Z1-axis slide and the Z2-axis slide respectively drive the milling head to move away from the workpiece; 6) The X-axis slide moves backward, the Z1-axis slide and the Z2-axis slide drive the milling head to the position of milling the outer side surface, and the X-axis slide moves forward to mill the back of the outer side surface. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head to move away from the workpiece; 7) The X-axis slide moves backward, releases the locking positioning cylinder, pushes the rack cylinder to rotate the workpiece, presses the locking positioning cylinder, and the Z1-axis slide and the Z2-axis slide drive the milling head to the milling outer side position respectively. The X-axis slide moves forward to mill the front of the outer side. After milling, the Z1-axis slide and the Z2-axis slide drive the milling head back to the initial position respectively; 8) The X-axis slide moves back to the loading position, loosen the support clamping cylinder, loosen the side support cylinder, loosen the lower support cylinder, loosen the upper clamping cylinder, and loosen the side positioning cylinder; 9) Remove the workpiece and complete the processing.

Images