CN210280346U - Multi-window deburring machine - Google Patents

Abstract

The utility model relates to the technical field of deburring equipment, in particular to a multi-window deburring machine, which comprises a frame, a movable mould component and a fixed mould component, wherein a telescopic expansion cutter component is arranged between the movable mould component and the fixed mould component and is fixedly arranged at the top end of the fixed mould component; the telescopic expansion tool assembly comprises a plurality of fan-shaped punches arranged around the same axis and at the same central angle, an expansion tool driving device for driving the fan-shaped punches to move radially outwards relative to the axis is installed at the bottom end of the rack, the telescopic expansion tool assembly further comprises a reset mechanism for driving the fan-shaped punches to move radially inwards relative to the axis, and the deburring machine can remove burrs on non-parting lines such as a material handle, parting line edge burrs and fleshings of a die casting piece at one time, is low in cost and is easy to replace a punching blade.

Description

Multi-window deburring machine

Technical Field

The invention relates to the technical field of deburring equipment, in particular to a multi-window deburring machine.

Background

With the development of production and the continuous improvement of the living standard of people, the automobile industry is rapidly developed along with the increasing material demand of people, thereby driving the rapid development of the automobile part industry. Nowadays, the design of automobiles is developing towards light weight, energy conservation and environmental protection, and various technologies are continuously innovated and advanced along with the demands. Meanwhile, the structure and function of each part of the automobile tend to be complicated and diversified, which inevitably drives the whole automobile spare and accessory part industry to carry out technical innovation and change.

The existing aluminum die casting deburring and deckle edge removing method mainly comprises the following steps: first, burrs such as a material shank of a die cast article are punched out by a die. And secondly, punching out burrs on the edge of the parting line of the product by fine punching. Finally, burrs on non-molded lines such as fleshiness or ejector rods and the like generated by the product due to a complex structure of the product or due to cracking and aging of a die and the like can be removed only by hand.

In view of increasingly scarce labor force and increasing year by year of production development speed, the traditional mode of manually removing burrs at special positions cannot meet the requirements of production development, the manual deburring easily causes the local burrs of die castings to be omitted for treatment, so that the problems of low production benefit, unstable quality and the like are caused, the working procedures of removing burrs of die castings and fleshiness of products caused by aging and cracking of dies are carried out according to the traditional manual removing processing, the workload is large, the burrs are easy to be omitted for repair and easy to deform after repair, the factors cause the unstable product quality and the high labor and labor rate, and the traditional mode becomes the bottleneck of re-development of the die casting industry.

Chinese patent CN206643340U discloses a deburring device for an engine front cover die-casting piece, which comprises a base, a support frame positioned on the base and an installation platform connected with the support frame, wherein a positioning pin is arranged on the installation platform and used for fixedly connecting the installation platform with a workpiece; the utility model discloses a burring device for engine front cover die casting can once only get rid of a plurality of burrs, improves work efficiency, reduces artifical the participation, reduces the error that manual operation brought, has guaranteed the yield.

However, the die casting is complex in shape, a plurality of parts which cannot remove burrs at one time are arranged in the die casting, the deburring device disclosed therein can only complete two procedures of rough punching and fine punching, can remove burrs on the material handle and parting line edge of the die casting, and cannot remove burrs on non-parting lines such as fleshiness lines or ejector rods, and therefore a novel deburring device is needed, and burrs on non-parting lines such as the material handle, parting line edge burrs, fleshiness lines and ejector rods of the die casting can be removed at one time.

Disclosure of Invention

The invention aims to provide a multi-window deburring machine which can remove burrs on non-parting lines such as a material handle, parting line edge burrs and fleshiness and a push rod of a die casting piece at one time, and is low in cost and easy in replacement of a punching blade.

In order to achieve the purpose, the invention adopts the following technical scheme:

the multi-window deburring machine comprises a rack, a movable die assembly and a fixed die assembly, wherein the movable die assembly is vertically and slidably mounted in the rack, the fixed die assembly is fixedly mounted in the rack, the fixed die assembly is positioned right below the movable die assembly, an upper die driving device for driving the movable die assembly to vertically move up and down is mounted at the top end of the rack, a telescopic expansion tool assembly is arranged between the movable die assembly and the fixed die assembly, and the telescopic expansion tool assembly is fixedly mounted at the top end of the fixed die assembly;

the telescopic expanding cutter assembly comprises a plurality of fan-shaped punches which are arranged around the same axis at equal central angles, an expanding cutter driving device for driving the fan-shaped punches to move radially outwards relative to the axis is installed at the bottom end of the rack, and the telescopic expanding cutter assembly further comprises a reset mechanism for driving the fan-shaped punches to move radially inwards relative to the axis.

As an optimal scheme of the multi-window deburring machine, the rack comprises a top plate, guide pillars, guide sleeves and a bottom plate, the top plate and the bottom plate are horizontally arranged and are in up-and-down symmetry, the guide pillars are vertically arranged at four corners of the top plate and are fixedly connected with four corners of the bottom plate, movable die assemblies are slidably arranged on the guide pillars through the guide sleeves, the movable die assemblies are fixedly connected with the guide sleeves, the movable die assemblies are located between the top plate and the bottom plate, fixed die assemblies are fixedly arranged on the top surface of the bottom plate, upper die driving devices are fixedly arranged at the top ends of the top plate, and working ends of the upper die.

As a preferred scheme of the multi-window deburring machine, the movable die assembly comprises a connecting plate, a movable plate, a punch fixing plate and an upper die which are sequentially and fixedly connected from top to bottom, the movable plate is fixedly connected with the guide sleeve, the upper die driving device comprises a first linear driving device and a flange, the working end of the first linear driving device is fixedly connected with the connecting plate through the flange, and the fixed die assembly comprises a lower die which is fixedly installed on the bottom plate.

As a preferred scheme of the multi-window deburring machine, the fan-shaped punch comprises a sliding block and a punching blade, one end of the sliding block is a sector, the other end of the sliding block is rectangular, one end of the sector of the sliding block is provided with a plurality of punching blade grooves, and the punching blade is arranged in each punching blade groove.

As an optimal scheme of a multi-window deburring machine, one side that the sector is kept away from to the slider is provided with the inclined plane of downward sloping, expand cutter drive arrangement including second linear drive device and oblique apical axis, second linear drive device fixed mounting is in the bottom of frame and the vertical upwards setting of work end of second linear drive device, oblique apical axis fixed mounting is in the work end of second linear drive device, oblique apical axis is the round platform shape that the upper surface set up upwards, the slider encircles the setting of central angle such as oblique apical axis, the round platform face and the inclined plane sliding fit of oblique apical axis, oblique apical axis is located the below of slider under the non-operating condition.

As a preferred scheme of the multi-window deburring machine, the inclined angle of the inclined plane relative to the vertical direction is 10 degrees, and the included angle between the circular table surface of the inclined top shaft and the axis of the circular table surface is 10 degrees.

As a preferred scheme of the multi-window deburring machine, the telescopic extended cutter assembly further comprises a positioning plate, the positioning plate comprises a horizontally arranged circular cover plate and a plurality of fixed guide blocks vertically and downwardly extending from the bottom end of the circular cover plate, and the fixed guide blocks are arranged between adjacent sliding blocks;

the bottom surface of the circular cover plate is in sliding fit with the top surface of the sliding block, the side surface of the fixed guide block is in sliding fit with the side surface of the rectangular end of the sliding block, and the fixed guide block is fixedly connected with the fixed die assembly.

As an optimal selection scheme of a multiple window burr-grinding machine, canceling release mechanical system is including the spring, and the spring groove of rectangle is seted up to the rectangle end of slider, and the bottom of locating plate is provided with vertical downwardly extending's fixed plate, and the fixed plate inserts the spring inslot portion and with spring groove clearance fit, the fixed plate setting is close to one side of slider sector end at the spring groove, and the spring mounting is in the spring inslot portion, and the both ends of spring butt respectively on the inner wall and the fixed plate of spring groove.

The invention has the beneficial effects that:

a worker places a die casting to be deburred on the lower die, then starts the deburring machine, and the first linear driving device drives the upper die to move downwards so that the upper die and the lower die are matched, and burrs at general positions on the die casting are removed;

the upper die and the lower die are kept in a die assembly state, the second linear driving device drives the inclined ejecting shaft to move upwards, the inclined ejecting shaft drives the sliding block to move outwards in the radial direction, and the sliding block removes burrs and burrs at special positions of die castings through a plurality of punching blades arranged at the sector ends of the sliding block;

the second linear driving device drives the inclined top shaft to reset, the sliding block resets under the action of the spring, and then the first linear driving device drives the upper die to reset;

and opening the upper die and the lower die, taking out the die casting subjected to deburring by a worker, and putting a new die casting.

1. The deburring machine is different from the operation mode that the burr is removed from outside to inside and from top to bottom of the traditional deburring machine, and the deburring machine enables the cutting edge to be expanded from inside to outside through the internal expansion structure so as to achieve the purpose of deburring. Burrs on non-dividing lines such as a material handle, parting line edge burrs, fleshiness and a push rod of a die casting can be removed at one time;

2. the punching blade of the deburring machine is easy to replace, and compared with an integrated die, the use of the punching blade which can be disassembled for replacement is low in cost.

3. According to the deburring machine, 30 punches are arranged in the range of phi 120mm on the circular table top, the design precision is high, the damage to products is small, and the rejection rate of the products is reduced.

4. Practice tests show that the time for removing one product by the deburring machine is about 3 seconds averagely, while the time for manually removing the burrs of the traditional product is about 1 minute and 10 seconds, so that the time is greatly saved, and the production efficiency and the quality stability are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is a first perspective view of a multi-window deburring machine according to an embodiment of the present invention;

FIG. 2 is a front view of a multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 3 is a side view of a multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 4 is a second perspective view of a multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 5 is a third perspective view of a multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 6 is a first exploded perspective view of a stationary mold assembly and a retractable expansion tool assembly of a multi-window deburring machine according to an embodiment of the present invention;

FIG. 7 is an exploded perspective view of a stationary mold assembly and a retractable extendable cutter assembly of a multi-window deburring machine according to an embodiment of the present invention

FIG. 8 is a bottom view of a retractable expansion tool assembly of a multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 9 is a first exploded perspective view of a retractable expansion tool assembly of a multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 10 is a second exploded perspective view of the extendable and retractable tool assembly of the multi-window deburring machine in accordance with an embodiment of the present invention;

FIG. 11 is a schematic view of a machining position of a multi-window deburring machine according to an embodiment of the present invention;

in the figure:

1. a frame; 1a, a top plate; 1b, a guide post; 1c, a guide sleeve; 1d, a bottom plate;

2. a movable die assembly; 2a, a connecting plate; 2b, a movable plate; 2c, a punch fixing plate; 2d, an upper die;

3. a stationary die assembly; 3a, a lower die;

4. an upper die driving device; 4a, a first linear driving device; 4b, a flange;

5. a retractable expansion tool assembly;

5a, a sliding block; 5a1, punching a blade groove; 5a2, inclined plane; 5a3, spring slot;

5b, punching edges;

5c, positioning plates; 5c1, round cover plate; 5c2, fixed guide block; 5c3, fixing plate;

5d, a spring;

6. expanding a cutter driving device; 6a, a second linear driving device; 6b, an inclined top shaft;

7. and (4) machining positions of the fan-shaped punch heads.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 10, the multi-window deburring machine comprises a rack 1, a movable mold component 2 and a fixed mold component 3, wherein the movable mold component 2 is vertically and slidably mounted inside the rack 1, the fixed mold component 3 is fixedly mounted inside the rack 1, the fixed mold component 3 is located right below the movable mold component 2, an upper mold driving device 4 for driving the movable mold component 2 to vertically move up and down is mounted at the top end of the rack 1, a telescopic expansion cutter component 5 is arranged between the movable mold component 2 and the fixed mold component 3, and the telescopic expansion cutter component 5 is fixedly mounted at the top end of the fixed mold component 3;

the retractable expanding cutter assembly 5 comprises a plurality of sector punches which are arranged around the same axis at equal central angles, the number of the sector punches is 30, an expanding cutter driving device 6 which drives the sector punches to move radially outwards relative to the axis of the sector punches is arranged at the bottom end of the frame 1, and the retractable expanding cutter assembly 5 further comprises a resetting mechanism which drives the sector punches to move radially inwards relative to the axis of the sector punches.

Frame 1, movable mould subassembly 2, cover half subassembly 3 and last mould drive arrangement 4 make up into common hydraulic press, a burr for getting rid of on the die casting general position, after last mould drive arrangement 4 drive movable mould subassembly 2 and cover half subassembly 3 compound die, it outwards moves for its axis to expand the fan-shaped drift of tool drive arrangement 6 drive, thereby get rid of burr and deckle edge on the die casting special position through fan-shaped drift, after the burring process is accomplished, expand tool drive arrangement 6 and reset, reset mechanism drive fan-shaped drift resets after that, then go up mould drive arrangement 4 drive movable mould subassembly 2 and reset.

The machine frame 1 comprises a top plate 1a, a guide pillar 1b, a guide sleeve 1c and a bottom plate 1d, the top plate 1a and the bottom plate 1d are horizontally arranged and are vertically symmetrical, the guide pillar 1b is vertically arranged at four corners of the top plate 1a and is fixedly connected with four corners of the bottom plate 1d, a movable die assembly 2 is slidably arranged on the guide pillar 1b through the guide sleeve 1c, the movable die assembly 2 is fixedly connected with the guide sleeve 1c, the movable die assembly 2 is located between the top plate 1a and the bottom plate 1d, a fixed die assembly 3 is fixedly arranged on the top surface of the bottom plate 1d, an upper die driving device 4 is fixedly arranged at the top end of the top plate 1a, and the working end of the upper die driving device.

The upper die driving device 4 works to drive the movable die assembly 2 to vertically reciprocate, and the movable die assembly 2 slides along the guide post 1b through the guide sleeve 1c, so that the movable die assembly 2 cannot rotate or deflect when vertically reciprocating.

The movable die assembly 2 comprises a connecting plate 2a, a movable plate 2b, a punch fixing plate 2c and an upper die 2d which are sequentially and fixedly connected from top to bottom, the movable plate 2b is fixedly connected with the guide sleeve 1c, the upper die driving device 4 comprises a first linear driving device 4a and a flange 4b, the working end of the first linear driving device 4a is fixedly connected with the connecting plate 2a through the flange 4b, and the fixed die assembly 3 comprises a lower die 3a fixedly installed on the bottom plate 1 d.

The first linear driving device 4a is a hydraulic cylinder, and the flange 4b is driven by the first linear driving device 4a to drive the movable die assembly 2 to move downwards, so that the upper die 2d and the lower die 3a are matched, and burrs and rough edges on the surface of the die casting are removed.

The fan-shaped punch comprises a slide block 5a and a punching blade 5b, one end of the slide block 5a is a sector, the other end of the slide block 5a is rectangular, one end of the sector of the slide block 5a is provided with a plurality of punching blade grooves 5a1, and the punching blade 5b is installed in each punching blade groove 5a 1.

When slider 5a radially outwards moved for the axis of its fan face, slider 5a drives punching blade 5b and outwards moves together to make punching blade 5b can cut the surface of die casting, and then get rid of the burr and the deckle edge of die casting special position, punching blade 5b is easily changed, and punching blade 5 b's mounted position and shape can be adjusted as required and change extensive applicability.

The one side that slider 5a kept away from its fan face is provided with the inclined plane 5a2 of downward sloping, it includes second linear drive device 6a and oblique apical axis 6b to expand cutter drive arrangement 6, second linear drive device 6a fixed mounting is in the bottom of frame 1 and the vertical upwards setting of working end of second linear drive device 6a, oblique apical axis 6b fixed mounting is in the working end of second linear drive device 6a, oblique apical axis 6b is the round platform shape that the upper surface set up upwards, slider 5a encircles the setting of central angle such as oblique apical axis 6b, the round platform face and the inclined plane 5a2 sliding fit of oblique apical axis 6b, oblique apical axis 6b is located the below of slider 5a under the non-operation state.

The second linear driving device 6a is a hydraulic cylinder, the second linear driving device 6a drives the inclined top shaft 6b to move vertically upwards, a circular table surface of the inclined top shaft 6b abuts against the inclined surface 5a2, so that the force of the upward movement of the inclined top shaft 6b is converted into a force pushing the inclined surface 5a2 outwards in a radial direction, the slide block 5a is pushed outwards, and the slide block 5a drives the punching blade 5b to move outwards in a radial direction relative to the inclined top shaft 6 b.

The inclined plane 5a2 has an inclination angle of 10 degrees relative to the vertical direction, and the included angle between the circular table surface of the inclined top shaft 6b and the axis thereof is 10 degrees.

If the inclination angle of the inclined plane 5a2 with respect to the vertical direction is too small, the second linear driving device 6a needs a longer output distance, and if the inclination angle of the inclined plane 5a2 with respect to the vertical direction is too large, the second linear driving device 6a needs a larger output power, and the inclination angle of 10 degrees is selected as a more suitable inclination angle.

The retractable expanding cutter assembly 5 further comprises a positioning plate 5c, the positioning plate 5c comprises a horizontally arranged circular cover plate 5c1 and a plurality of fixed guide blocks 5c2 vertically extending downwards from the bottom end of the circular cover plate 5c1, and the fixed guide blocks 5c2 are arranged between the adjacent sliding blocks 5 a;

the bottom surface of the circular cover plate 5c1 is in sliding fit with the top surface of the slide block 5a, the side surface of the fixed guide block 5c2 is in sliding fit with the side surface of the rectangular end of the slide block 5a, and the fixed guide block 5c2 is fixedly connected with the fixed die assembly 3.

The positioning plate 5c is fixedly mounted on the lower die 3a by penetrating the circular cover plate 5c1 and the fixed guide block 5c2 through bolts, the slider 5a is vertically sandwiched by the circular cover plate 5c1 and the lower die 3a, and both sides of the rectangular end of the slider 5a are respectively sandwiched by the two fixed guide blocks 5c2, so that the slider 5a is constrained by the positioning plate 5c and can only move radially relative to the inclined top shaft 6 b.

The reset mechanism comprises a spring 5d, a rectangular spring groove 5a3 is formed in the rectangular end of the sliding block 5a, a fixing plate 5c3 extending vertically downwards is arranged at the bottom end of the positioning plate 5c, the fixing plate 5c3 is inserted into the spring groove 5a3 and is in clearance fit with the spring groove 5a3, the fixing plate 5c3 is arranged on one side of the spring groove 5a3 close to the sector end of the sliding block 5a, the spring 5d is installed in the spring groove 5a3, and two ends of the spring 5d abut against the inner wall of the spring groove 5a3 and the fixing plate 5c3 respectively.

Since the positioning plate 5c is fixed, the fixing plate 5c3 is fixed, when the inclined top shaft 6b drives the slide block 5a to slide outwards, the slide block 5a slides outwards against the resilience of the spring 5d, the spring 5d is clamped between the fixing plate 5c3 and the spring groove 5a3 to deform, and after the inclined top shaft 6b is reset, the slide block 5a is reset under the resilience of the spring 5 d.

The working principle is as follows:

referring to fig. 11, the fan punch machining position is shown.

A worker places a die casting to be deburred on the lower die 3a, then the deburring machine is started, the first linear driving device 4a drives the upper die 2d to move downwards, so that the upper die 2d and the lower die 3a are matched, and burrs at general positions on the die casting are removed;

the upper die 2d and the lower die 3a are kept in a die-closing state, the second linear driving device 6a drives the inclined top shaft 6b to move upwards, the inclined top shaft 6b drives the sliding block 5a to move outwards in the radial direction, and the sliding block 5a removes burrs and burrs at special positions of die castings through a plurality of punching blades 5b arranged at the fan face end of the sliding block 5 a;

the second linear driving device 6a drives the inclined top shaft 6b to reset, the slide block 5a resets under the action of the spring 5d, and then the first linear driving device 4a drives the upper die 2d to reset;

and opening the upper die 2d and the lower die 3a, taking out the die casting with the burrs removed by a worker, and putting a new die casting.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims (8)

1. The multi-window deburring machine is characterized by comprising a rack (1), a movable mold component (2) and a fixed mold component (3), wherein the movable mold component (2) can be vertically and slidably installed inside the rack (1), the fixed mold component (3) is fixedly installed inside the rack (1) and the fixed mold component (3) is located right below the movable mold component (2), an upper mold driving device (4) for driving the movable mold component (2) to vertically move up and down is installed at the top end of the rack (1), a telescopic expansion cutter component (5) is arranged between the movable mold component (2) and the fixed mold component (3), and the telescopic expansion cutter component (5) is fixedly installed at the top end of the fixed mold component (3);

the telescopic expanding cutter assembly (5) comprises a plurality of fan-shaped punches which are arranged around the same axis at equal central angles, an expanding cutter driving device (6) for driving the fan-shaped punches to move radially outwards relative to the axis of the fan-shaped punches is installed at the bottom end of the rack (1), and the telescopic expanding cutter assembly (5) further comprises a resetting mechanism for driving the fan-shaped punches to move radially inwards relative to the axis of the fan-shaped punches.

2. The multi-window deburring machine according to claim 1, characterized in that the frame (1) comprises a top plate (1a), guide posts (1b), guide pin bushing (1c) and bottom plate (1d), roof (1a) and bottom plate (1d) level setting and longitudinal symmetry, guide pillar (1b) are vertical to be installed in the four corners of roof (1a) and with the four corners fixed connection of bottom plate (1d), movable mould subassembly (2) pass through guide pin bushing (1c) slidable install on guide pillar (1b), movable mould subassembly (2) and guide pin bushing (1c) fixed connection, movable mould subassembly (2) are located between roof (1a) and bottom plate (1d), fixed mould subassembly (3) fixed mounting is on the top surface of bottom plate (1d), go up mould drive arrangement (4) fixed mounting in the top of roof (1a), the work end of going up mould drive arrangement (4) runs through roof (1a) and movable mould subassembly (2) fixed connection.

3. The multi-window deburring machine according to claim 2, wherein the movable die assembly (2) comprises a connecting plate (2a), a movable plate (2b), a punch fixing plate (2c) and an upper die (2d) which are sequentially and fixedly connected from top to bottom, the movable plate (2b) is fixedly connected with the guide sleeve (1c), the upper die driving device (4) comprises a first linear driving device (4a) and a flange (4b), the working end of the first linear driving device (4a) is fixedly connected with the connecting plate (2a) through the flange (4b), and the fixed die assembly (3) comprises a lower die (3a) fixedly installed on the bottom plate (1 d).

4. The multi-window deburring machine of claim 1, wherein the fan-shaped punch comprises a slide block (5a) and a punching edge (5b), one end of the slide block (5a) is a sector, the other end of the slide block (5a) is rectangular, one end of the sector of the slide block (5a) is provided with a plurality of punching edge grooves (5a1), and the punching edge (5b) is installed in each punching edge groove (5a 1).

5. The multi-window deburring machine according to claim 4, characterized in that the side of the slide (5a) remote from the sector thereof is provided with a downward inclined surface (5a2), the extended tool driving device (6) comprises a second linear driving device (6a) and an inclined top shaft (6b), the second linear driving device (6a) is fixedly mounted at the bottom end of the frame (1) and the working end of the second linear driving device (6a) is vertically arranged upward, the inclined top shaft (6b) is fixedly mounted at the working end of the second linear driving device (6a), the inclined top shaft (6b) is in the shape of a circular truncated cone with the upper bottom surface arranged upward, the slide (5a) is arranged around the inclined top shaft (6b) at an equal central angle, the circular table surface of the inclined top shaft (6b) is in sliding fit with the inclined surface (5a2), and the inclined top shaft (6b) is positioned below the slide (5a) in the non-working state.

6. A multi-window deburring machine according to claim 5 wherein the bevel (5a2) is inclined at an angle of 10 degrees to the vertical and the angle between the circular table of the oblique top shaft (6b) and its axis is 10 degrees.

7. The multi-window deburring machine of claim 4, wherein the retractable expansion cutter assembly (5) further comprises a positioning plate (5c), the positioning plate (5c) comprises a horizontally arranged circular cover plate (5c1) and a plurality of fixed guide blocks (5c2) vertically extending downward from the bottom end of the circular cover plate (5c1), the fixed guide blocks (5c2) are arranged between the adjacent slide blocks (5 a);

the bottom surface of the circular cover plate (5c1) is in sliding fit with the top surface of the slide block (5a), the side surface of the fixed guide block (5c2) is in sliding fit with the rectangular end side surface of the slide block (5a), and the fixed guide block (5c2) is fixedly connected with the fixed die assembly (3).

8. The multi-window deburring machine according to claim 7, wherein the resetting mechanism comprises a spring (5d), a rectangular spring groove (5a3) is formed in the rectangular end of the sliding block (5a), a fixing plate (5c3) which extends vertically and downwards is arranged at the bottom end of the positioning plate (5c), the fixing plate (5c3) is inserted into the spring groove (5a3) and is in clearance fit with the spring groove (5a3), the fixing plate (5c3) is arranged on one side, close to the sector end of the sliding block (5a), of the spring groove (5a3), the spring (5d) is installed inside the spring groove (5a3), and two ends of the spring (5d) abut against the inner wall of the spring groove (5a3) and the fixing plate (5c3) respectively.

Images