CN216679957U - Full-automatic numerical control corner combining machine - Google Patents

Abstract

The utility model discloses a full-automatic numerical control corner combining machine, which relates to the technical field of door and window production, and adopts the technical scheme that the corner combining machine comprises a workbench, wherein an outer positioning assembly, an inner positioning assembly and a punch assembly are arranged on the workbench; the outer positioning assembly comprises an outer positioning part and an outer positioning driving assembly for adjusting the position of the outer positioning part; the inner positioning assembly comprises an inner positioning component and an inner positioning driving assembly used for adjusting the position of the inner positioning component; the punch assembly comprises a punch base, and the punch base is provided with a lower punch assembly, a lower punch driving assembly for adjusting the position of the lower punch assembly, an upper punch assembly and an upper punch driving assembly for adjusting the position of the upper punch assembly. The utility model can be quickly adjusted in place according to the position size required by the corner combining, the time required by equipment adjustment is reduced, and the utility model can meet various window sash size types based on unified standard cutters without frequently preparing a large number of cutter materials with models and specifications, thereby saving the cost.

Description

Full-automatic numerical control corner combining machine

Technical Field

The utility model relates to the technical field of door and window production, in particular to a full-automatic numerical control corner combining machine.

Background

In the traditional door and window industry, the main process of the aluminum alloy door and window comprises the following steps: cutting and blanking, deep processing of frame aluminum materials (processing lock holes, handle holes and the like), corner assembling and assembling. Wherein, the group angle process is to use the group angle machine to carry out the punching press to the outside of pairing section bar in groups, forms blanking fracture groove, and under the effect of extrusion force, the groove can block in the angle sign indicating number breach department of wearing in the window frame die cavity to realize the riveting of door and window single angle.

However, for window types with different structural sizes, the adjustment time of the size and the position of the cutter of the existing corner combining equipment is long, especially, the cutter is difficult to be used universally for the same cutter of different series of sectional materials, the cutters with different structural sizes and types are often required to be customized, and for the production of small-batch multi-type window types, the spare cutter material types are more, so that the production cost is high, the adjustment time of the equipment is long, and the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a full-automatic numerical control corner combining machine which can be quickly adjusted to a proper position according to the position size required by a corner combining machine, reduces the time required by equipment adjustment, is based on a unified standard cutter, can meet various window sash size types, does not need to stock a large number of cutter materials with model specifications, and saves the cost.

In order to achieve the purpose, the utility model provides the following technical scheme:

a full-automatic numerical control corner combining machine comprises a workbench, wherein an outer positioning assembly, an inner positioning assembly and two symmetrically arranged punch assemblies are respectively arranged on the workbench;

the outer positioning assembly comprises an outer positioning part and an outer positioning driving assembly for adjusting the position of the outer positioning part;

the inner positioning assembly comprises an inner positioning component and an inner positioning driving assembly used for adjusting the position of the inner positioning component;

the punch assembly comprises a punch base, and the punch base is provided with a lower punch assembly, a lower punch driving assembly for adjusting the position of the lower punch assembly, an upper punch assembly and an upper punch driving assembly for adjusting the position of the upper punch assembly.

Furthermore, the outer positioning component comprises a lower positioning plate and an upper positioning plate, and the distance between the lower positioning plate and the upper positioning plate along the vertical direction is adjustable; the outer positioning driving assembly comprises an outer positioning base and a first horizontal driving assembly used for driving the outer positioning base to move along the horizontal direction; the outer positioning base is provided with a first vertical driving assembly connected with the outer positioning component, and the first vertical driving assembly is used for driving the outer positioning component to move along the vertical direction.

Further, the inner positioning driving assembly comprises an inner positioning inner base, an inner positioning outer base and a second horizontal driving assembly for driving the inner positioning outer base to move along the horizontal direction; a second vertical driving assembly used for driving the inner positioning inner base to move along the vertical direction is arranged on the inner positioning outer base; and a third vertical driving assembly connected with the inner positioning component is arranged on the inner positioning inner base.

Furthermore, a horizontal movement guide assembly is arranged at the top end of the inner positioning outer base and comprises a guide frame fixedly connected with the inner positioning outer base; be provided with spacing subassembly on the interior location inner base, spacing subassembly can move to with the leading truck bottom contact prevents interior location inner base from swinging in vertical direction.

Further, the spacing subassembly includes a plurality of spacing bolts.

Furthermore, the full-automatic numerical control corner combining machine further comprises a small window mode adjusting assembly used for adjusting the horizontal retraction stroke of the inner positioning outer base.

Further, a first friction brake assembly is arranged between the inner positioning inner base and the workbench; the first friction brake assembly comprises a first brake oil cylinder arranged in the inner positioning inner base and two first friction strips arranged on the workbench; the first brake oil cylinder comprises a first oil cylinder plunger; after the inner positioning inner base moves to a position between the two first friction strips, the first oil cylinder plunger extends out, one first friction strip is in contact with the outer side wall of the inner positioning inner base, and the other first friction strip is in contact with the end part of the first oil cylinder plunger.

Further, the punch base comprises a lower base bearing the lower punch assembly and the lower punch driving assembly, and an upper base bearing the upper punch assembly and the upper punch driving assembly; and a second guide rail assembly and a third horizontal driving assembly for adjusting the relative positions of the lower base and the upper base are arranged between the lower base and the upper base.

Further, a second friction brake assembly is arranged between the upper base and the lower base; the second friction brake assembly comprises a brake base fixedly connected with the lower base and a second brake oil cylinder fixedly connected with the upper base; two second friction strips are arranged on the brake base, and the second brake oil cylinder comprises a second oil cylinder plunger; after the second brake oil cylinder is positioned between the two second friction strips, the plunger of the second oil cylinder extends out, one of the second friction strips is in contact with the outer side wall of the second brake oil cylinder, and the other second friction strip is in contact with the end part of the plunger of the second oil cylinder.

Further, the lower punch driving assembly comprises a lower punch horizontal driving assembly for controlling the lower punch assembly to move in the horizontal direction, and a lower punch vertical driving assembly for driving the lower punch horizontal driving assembly to move in the vertical direction;

the upper punch driving assembly comprises an upper punch horizontal driving assembly used for controlling the upper punch assembly to move along the horizontal direction, and an upper punch vertical driving assembly used for driving the upper punch horizontal driving assembly to move along the vertical direction.

In conclusion, the utility model has the following beneficial effects:

the device can be quickly adjusted in place according to the position size required by the corner combining, the time required by the adjustment of the device is reduced, the size types of various window sashes can be met based on unified standard cutters, a large number of cutter materials with the types and specifications do not need to be prepared frequently, and the cost is saved;

2. the equipment can record the type of the processed window sash and reserve a gear, and can quickly switch the type of the window sash material which needs to be processed and has the record without repeated adjustment;

3. adopt first friction brake subassembly and second friction brake subassembly, utilize frictional force to make subassembly or part position in stamping process remain unchanged, can improve processingquality on the one hand, on the other hand can avoid causing the influence to equipment because of the rigidity collision.

Drawings

FIG. 1 is a schematic structural diagram of a fully automatic numerical control corner combining machine in an embodiment;

FIG. 2 is a schematic structural diagram of an outer positioning assembly according to an embodiment;

FIG. 3 is a first schematic structural diagram of an inner positioning assembly in an embodiment;

FIG. 4 is a second schematic structural diagram of an inner positioning assembly in the embodiment;

FIG. 5 is a schematic structural diagram of an inner positioning assembly in the third embodiment;

FIG. 6 is a fourth schematic structural view of an inner positioning assembly in an embodiment;

FIG. 7 is a first schematic structural view of an adjustable punch assembly according to an embodiment;

FIG. 8 is a second schematic structural view of an adjustable punch assembly according to an embodiment;

FIG. 9 is a third schematic structural view of an adjustable punch assembly according to an embodiment;

FIG. 10 is a first schematic structural view of a second friction brake assembly according to an embodiment;

FIG. 11 is a second schematic structural view of a second friction brake assembly according to an embodiment.

In the figure: 1. a work table; 2. an outer positioning assembly; 21. an outer positioning base; 22. a first rail assembly; 23. a first horizontal drive assembly; 24. a first vertical drive assembly; 251. a lower positioning plate; 252. an upper positioning plate; 253. positioning a rod; 3. a punch assembly; 31. a lower base; 32. an upper base; 33. a third horizontal drive assembly; 34. a lower punch assembly; 351. a lower punch horizontal driving component; 352. a lower punch vertical drive assembly; 36. an upper punch assembly; 371. an upper punch horizontal driving component; 372. an upper punch vertical drive assembly; 38. a second friction brake assembly; 381. a brake base; 382. a second brake cylinder; 383. a second rubbing strip; 384. a second gap adjustment block; 385. a second cylinder plunger; 4. stamping an execution oil cylinder; 5. an inner positioning assembly; 51. an inner positioning outer base; 511. a guide bar; 52. a second vertical drive assembly; 53. an inner positioning inner base; 531. a limit bolt; 532. a first cylinder plunger; 533. a first gap adjustment block; 54. a third vertical drive assembly; 55. an inner positioning member; 56. a second horizontal drive assembly; 561. a horizontal driving frame; 57. a horizontal movement guide assembly; 58. a base plate; 581. a let position port; 582. a first rubbing strip; 6. an upper compression assembly; 7. a widget mode adjustment component; 8. and a window sash.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example (b):

a full-automatic numerical control corner combining machine, refer to fig. 1 to 11, comprises a workbench 1, wherein an outer positioning component 2, an inner positioning component 5 and two symmetrically arranged punch components 3 are respectively arranged on the workbench 1; in the embodiment, the workbench 1 is also provided with a stamping execution oil cylinder 4 for driving the punch assembly 3 to execute stamping action, and an upper pressing assembly 6 for pressing the window sash 8; in this embodiment, the upper pressing component 6 may adopt various structures in the prior art, which is not described herein; the outer positioning assembly 2 comprises an outer positioning part and an outer positioning driving assembly for adjusting the position of the outer positioning part; the inner positioning assembly includes an inner positioning member 55, and an inner positioning driving assembly for adjusting the position of the inner positioning member 55; the punch assembly 3 comprises a punch base, and a lower punch assembly 34, a lower punch driving assembly for adjusting the position of the lower punch assembly 34, an upper punch assembly 36 and an upper punch driving assembly for adjusting the position of the upper punch assembly 36 are arranged on the punch base; the window sash 8 is placed on the workbench 1, the outer positioning assembly 2 and the inner positioning assembly 5 are matched to clamp and position the window sash 8, the upper pressing assembly 6 is adopted to press the window sash 8, then the punching execution oil cylinder 4 drives the punch assembly 3 to move to execute punching action, and the corner assembling process of the window sash 8 can be completed; the positions of the outer positioning part, the inner positioning part 55, the lower punch assembly 34 and the upper punch assembly 36 can be adjusted in the embodiment, so that the positions can be adjusted in place rapidly according to the size of the position required by the group corner, the time required by equipment adjustment is shortened, various window sash size types can be met based on unified standard cutters, a large number of types and specifications of cutter materials are not required to be prepared frequently, and the cost is saved.

Referring to fig. 1 and 2, in the present embodiment, the outer positioning member includes a lower positioning plate 251 and an upper positioning plate 252, and a distance between the lower positioning plate 251 and the upper positioning plate 252 in a vertical direction is adjustable; the vertical distance between the lower positioning plate 251 and the upper positioning plate 252 can be adjusted, so that the window sash positioning device is suitable for window sashes with more sizes and types, and the cost is saved; specifically, in this embodiment, the positioning rod 253 penetrating through the upper positioning plate 252 is arranged on the lower positioning plate 251, and the locking bolt capable of contacting with the positioning rod 253 is screwed on the upper positioning plate 252, so that after the upper positioning plate 252 is adjusted to a required height along the positioning rod 253, the locking bolt is tightened, and the distance between the lower positioning plate 251 and the upper positioning plate 252 can be kept unchanged, the structure is simple, and the operation is convenient; of course, in other alternative embodiments, the lower positioning plate 251 and the upper positioning plate 252 may have other structures to adjust the vertical distance therebetween, and are not limited herein.

Referring to fig. 1 and 2, the outer positioning driving assembly in this embodiment includes an outer positioning base 21, and a first horizontal driving assembly 23 for driving the outer positioning base 21 to move in a horizontal direction; the outer positioning base 21 is provided with a first vertical driving assembly 24 connected with the outer positioning part, and the first vertical driving assembly 24 is used for driving the outer positioning part to move along the vertical direction; preferably, a first guide rail assembly 22 is arranged between the outer positioning base 21 and the workbench 1, so that the moving stability of the outer positioning base 21 can be improved; preferably, in the embodiment, the first horizontal driving assembly 23 adopts a servo motor to cooperate with a T-shaped lead screw mechanism, and the first vertical driving assembly 24 also adopts a servo motor to cooperate with a T-shaped lead screw mechanism, so that the position of the outer positioning component after moving can be effectively kept unchanged by using the T-shaped lead screw; of course, in other alternative embodiments, the first horizontal driving assembly 23 and the first vertical driving assembly 24 may also adopt other linear reciprocating driving mechanisms, and are not limited herein.

Referring to fig. 1 and 3 to 6, the inner positioning driving assembly in this embodiment includes an inner positioning inner base 53, an inner positioning outer base 51, and a second horizontal driving assembly 56 for driving the inner positioning outer base 51 to move in a horizontal direction; a horizontal driving frame 561 connected with the second horizontal driving component 56 is fixedly arranged on the inner positioning outer base 51; the inner positioning outer base 51 is provided with a second vertical driving assembly 52 for driving the inner positioning inner base 53 to move along the vertical direction; the inner positioning inner base 53 is provided with a third vertical driving component 54 connected with an inner positioning part 55; preferably, in the present embodiment, two guide rods 511 penetrating through the inner positioning inner base 53 are disposed on the inner positioning outer base 51, so that the stability of the movement of the inner positioning inner base 53 in the vertical direction can be improved; in the embodiment, the inner positioning outer base 51 is arranged below the workbench 1, the second vertical driving assembly 52 is firstly utilized to drive the inner positioning inner base 53 to move upwards, so that the inner positioning member 55 moves to be positioned above the workbench 1, and then the third vertical driving assembly 54 is utilized to accurately adjust the vertical position of the inner positioning member 55 to be matched with the window sash 8; then the second horizontal driving assembly 56 drives the inner positioning outer base 51 to move in the horizontal direction, and the inner positioning member 55 moves into contact with the window sash 8, pressing from the inside of the window sash 8.

Referring to fig. 1 and 3 to 6, the second horizontal driving assembly 56 and the second vertical driving assembly 52 in the present embodiment may adopt various driving structures in the prior art, such as an air cylinder, etc., without limitation; preferably, in the embodiment, the third vertical driving assembly 54 adopts a servo motor to cooperate with a T-shaped lead screw mechanism, and the relative position of the inner positioning component 55 and the inner positioning inner base 53 can be effectively kept unchanged by using the T-shaped lead screw; in this embodiment, the horizontal movement guide assembly 57 is arranged at the top end of the inner positioning outer base 51, the horizontal movement guide assembly 57 comprises a guide frame fixedly connected with the inner positioning outer base 51 and two guide rods penetrating through the guide frame, and both ends of each guide rod are fixed relative to the workbench 1, so that the horizontal movement guide assembly 57 can improve the stability and the precision of the movement of the inner positioning outer base 51 along the horizontal direction; preferably, the inner positioning base 53 in this embodiment is provided with a limiting assembly, and the limiting assembly can move to contact with the bottom end of the guide frame to prevent the inner positioning base 53 from swinging in the vertical direction; preferably, the limiting assembly in this embodiment includes four limiting bolts 531 arranged in a rectangle, and when the top ends of the four limiting bolts 531 are all contacted with the bottom end of the guide frame, the inner positioning inner base 53 can be prevented from swinging in the vertical direction, so that the position accuracy can be ensured; the limiting bolt 531 has the advantages of simple structure and convenience in adjustment; of course, in other alternative embodiments, the limiting assembly may have other structures, and is not limited herein.

Referring to fig. 1 and 3 to 6, the fully automatic numerical control corner combining machine in the present embodiment further includes a small window mode adjusting assembly 7 for adjusting a horizontal retraction stroke of the inner positioning outer base 51; specifically, in the present embodiment, the small window mode adjustment assembly 7 adopts a bolt mechanism, the end position of the screw rod is adjusted by rotating the handle, the end of the screw rod is provided with a sensor, and the backspacing stroke of the inner positioning outer base 51 is controlled by the signal of the sensor, so that the small window group angle is realized; of course, in other alternative embodiments, the small window mode adjustment assembly 7 may also take other structural forms, and is not limited herein.

Referring to fig. 1 and 3 to 6, in the present embodiment, a first friction brake assembly is disposed between the inner positioning inner base 53 and the table 1, and the position of the inner positioning member 55 is kept unchanged during the stamping process by using the first friction brake assembly, so as to improve the processing quality; specifically, the first friction brake assembly in this embodiment includes a first brake cylinder disposed in the inner positioning inner base 53, and two first friction strips 582 disposed on the workbench 1; the first brake cylinder includes a first cylinder plunger 532; after the inner positioning inner base 53 moves to a position between the two first friction strips 582, the first oil cylinder plunger 532 extends, one first friction strip 582 is contacted with the outer side wall of the inner positioning inner base 53, and the other first friction strip 582 is contacted with the end part of the first oil cylinder plunger 532; in the embodiment, the braking limiting effect is realized by using the friction force, so that the influence on equipment caused by rigid collision can be avoided; specifically, in the present embodiment, the worktable 1 is connected with a backing plate 58, and the backing plate 58 is provided with a abdication port 581 through which the inner positioning inner base 53 penetrates; the first rubbing strips 582 are L-shaped, and the two first rubbing strips 582 are respectively installed on two opposite inner side walls of the escape-position port 581; preferably, the outer side wall of the inner positioning inner base 53 in this embodiment is provided with a first gap adjusting block 533; after the inner positioning inner base 53 moves to be positioned between the two first rubbing strips 582, the first gap adjusting block 533 is in contact with one first rubbing strip 582, and the first cylinder plunger 532 extends to be in contact with the other first rubbing strip 582; the gap between the inner positioning inner base 53 and the first friction strip 582 can be eliminated by using the first gap adjusting block 533, so that the relative position between the inner positioning inner base 53 and the base plate 58 in the horizontal direction cannot be influenced after the first oil cylinder plunger 532 extends out; of course, in other alternative embodiments, the first friction brake assembly may also adopt other structural forms, and the braking limitation may be implemented by using friction force, which is not limited herein.

Referring to fig. 1 and 7 to 11, the punch base in this embodiment comprises a lower base 31 carrying a lower punch assembly 34 and a lower punch drive assembly, and an upper base 32 carrying an upper punch assembly 36 and an upper punch drive assembly; a second guide rail assembly and a third horizontal driving assembly 33 for adjusting the relative position of the lower base 31 and the upper base 32 are arranged between the two bases; in the embodiment, a third guide rail assembly is arranged between the lower base 31 and the workbench 1, and the stamping execution oil cylinder 4 is connected with the lower base 31 through a transition piece; the lower punch drive assembly in this embodiment includes a lower punch horizontal drive assembly 351 for controlling the movement of the lower punch assembly 34 in the horizontal direction, and a lower punch vertical drive assembly 352 for driving the lower punch horizontal drive assembly 351 to move in the vertical direction; the upper punch driving assembly comprises an upper punch horizontal driving assembly 371 used for controlling the upper punch assembly 36 to move along the horizontal direction, and an upper punch vertical driving assembly 372 used for driving the upper punch horizontal driving assembly 371 to move along the vertical direction; in this embodiment, the upper punch drive assembly and the lower punch drive assembly are independent from each other, so that the positions of the upper punch assembly 36 and the lower punch assembly 34 can be adjusted respectively, and the third horizontal drive assembly 33 is used for adjusting the relative positions of the upper base 32 and the lower base 31, so that the linear motion of the upper punch assembly 36 and the lower punch assembly 34 with uniform size in the punching moving direction can be realized; preferably, in the present embodiment, the third horizontal driving assembly 33, the lower punch horizontal driving assembly 351, the lower punch vertical driving assembly 352, the upper punch horizontal driving assembly 371, and the upper punch vertical driving assembly 372 all adopt a servo motor in cooperation with a T-shaped screw mechanism, so that the adjusted positions of the lower punch assembly 34 and the upper punch assembly 36 can be kept unchanged.

Referring to fig. 1 and 7 to 11, in the present embodiment, a second friction brake assembly 38 is disposed between the lower base 31 and the upper base 32, and the relative position between the lower base 31 and the upper base 32 is kept unchanged during the stamping process by using the second friction brake assembly 38, so as to improve the processing quality; specifically, the second friction brake assembly 38 in this embodiment includes a brake base 381 fixedly connected to the lower base 31, and a second brake cylinder 382 fixedly connected to the upper base 32; two second friction strips 383 are arranged on the brake base 381, and the second brake cylinder 382 comprises a second cylinder plunger 385; after the second brake cylinder 382 is located between the two second friction strips 383, the second cylinder plunger 385 extends out, so that one second friction strip 383 is in contact with the outer side wall of the second brake cylinder 382, and the other second friction strip 383 is in contact with the end part of the second cylinder plunger 385.

Referring to fig. 1 and 7 to 11, preferably, a second clearance adjustment block 384 is disposed on an outer side wall of the second brake cylinder 382 in the present embodiment; after the second brake cylinder 382 moves to be positioned between two second friction strips 383, the second gap adjustment block 384 is contacted with one second friction strip 383, and the second cylinder plunger 385 extends to be contacted with the other second friction strip 383; the second gap adjusting block 384 can eliminate the gap between the second brake cylinder 382 and the second friction strip 383, so that after the second cylinder plunger 385 extends, the relative position between the inner second brake cylinder 382 and the brake base 381 along the horizontal direction is not influenced; of course, in other alternative embodiments, the second friction brake assembly may also adopt other structural forms, and the braking limit may be implemented by using friction force, which is not limited herein.

Claims (10)

1. A full-automatic numerical control corner combining machine is characterized by comprising a workbench, wherein an outer positioning assembly, an inner positioning assembly and two symmetrically arranged punch assemblies are respectively arranged on the workbench;

the outer positioning assembly comprises an outer positioning part and an outer positioning driving assembly for adjusting the position of the outer positioning part;

the inner positioning assembly comprises an inner positioning component and an inner positioning driving assembly used for adjusting the position of the inner positioning component;

the punch assembly comprises a punch base, and the punch base is provided with a lower punch assembly, a lower punch driving assembly for adjusting the position of the lower punch assembly, an upper punch assembly and an upper punch driving assembly for adjusting the position of the upper punch assembly.

2. The full-automatic numerical control corner combining machine according to claim 1, characterized in that: the outer positioning component comprises a lower positioning plate and an upper positioning plate, and the distance between the lower positioning plate and the upper positioning plate along the vertical direction is adjustable; the outer positioning driving assembly comprises an outer positioning base and a first horizontal driving assembly used for driving the outer positioning base to move along the horizontal direction; the outer positioning base is provided with a first vertical driving assembly connected with the outer positioning component, and the first vertical driving assembly is used for driving the outer positioning component to move along the vertical direction.

3. The full-automatic numerical control corner combining machine according to claim 1, characterized in that: the inner positioning driving assembly comprises an inner positioning inner base, an inner positioning outer base and a second horizontal driving assembly for driving the inner positioning outer base to move along the horizontal direction; a second vertical driving assembly used for driving the inner positioning inner base to move along the vertical direction is arranged on the inner positioning outer base; and a third vertical driving assembly connected with the inner positioning component is arranged on the inner positioning inner base.

4. The full-automatic numerical control corner combining machine according to claim 3, characterized in that: a horizontal moving guide assembly is arranged at the top end of the inner positioning outer base and comprises a guide frame fixedly connected with the inner positioning outer base; be provided with spacing subassembly on the interior location inner base, spacing subassembly can move to with the leading truck bottom contact prevents interior location inner base from swinging in vertical direction.

5. The full-automatic numerical control corner combining machine according to claim 4, characterized in that: the limiting assembly comprises a plurality of limiting bolts.

6. The full-automatic numerical control corner combining machine according to claim 3, characterized in that: the full-automatic numerical control corner combining machine further comprises a small window mode adjusting assembly used for adjusting the back-off stroke of the inner positioning outer base along the horizontal direction.

7. The full-automatic numerical control corner combining machine according to claim 4, characterized in that: a first friction brake assembly is arranged between the inner positioning inner base and the workbench; the first friction brake assembly comprises a first brake oil cylinder arranged in the inner positioning inner base and two first friction strips arranged on the workbench; the first brake oil cylinder comprises a first oil cylinder plunger; after the inner positioning inner base moves to a position between the two first friction strips, the first oil cylinder plunger extends out, one first friction strip is in contact with the outer side wall of the inner positioning inner base, and the other first friction strip is in contact with the end part of the first oil cylinder plunger.

8. The full-automatic numerical control corner combining machine according to claim 1, characterized in that: the punch base comprises a lower base bearing the lower punch assembly and the lower punch driving assembly, and an upper base bearing the upper punch assembly and the upper punch driving assembly; and a second guide rail assembly and a third horizontal driving assembly for adjusting the relative positions of the lower base and the upper base are arranged between the lower base and the upper base.

9. The full-automatic numerical control corner combining machine according to claim 8, characterized in that: a second friction brake assembly is arranged between the upper base and the lower base; the second friction brake assembly comprises a brake base fixedly connected with the lower base and a second brake oil cylinder fixedly connected with the upper base; two second friction strips are arranged on the brake base, and the second brake oil cylinder comprises a second oil cylinder plunger; after the second brake oil cylinder is positioned between the two second friction strips, the plunger of the second oil cylinder extends out, one of the second friction strips is in contact with the outer side wall of the second brake oil cylinder, and the other second friction strip is in contact with the end part of the plunger of the second oil cylinder.

10. The full-automatic numerical control corner combining machine according to claim 8, characterized in that: the lower punch driving assembly comprises a lower punch horizontal driving assembly used for controlling the lower punch assembly to move along the horizontal direction and a lower punch vertical driving assembly used for driving the lower punch horizontal driving assembly to move along the vertical direction;

the upper punch driving assembly comprises an upper punch horizontal driving assembly and an upper punch vertical driving assembly, wherein the upper punch horizontal driving assembly is used for controlling the upper punch assembly to move along the horizontal direction, and the upper punch vertical driving assembly is used for driving the upper punch horizontal driving assembly to move along the vertical direction.

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