CN108890368B - Automatic loading and unloading method for CNC (computer numerical control) machining - Google Patents
Automatic loading and unloading method for CNC (computer numerical control) machining Download PDFInfo
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- CN108890368B CN108890368B CN201810717619.2A CN201810717619A CN108890368B CN 108890368 B CN108890368 B CN 108890368B CN 201810717619 A CN201810717619 A CN 201810717619A CN 108890368 B CN108890368 B CN 108890368B
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Abstract
The invention discloses an automatic feeding and discharging method for CNC machining, which is based on an automatic feeding and discharging device, the automatic feeding and discharging device comprises a bottom plate, a left rotating seat, a right rotating seat, a clamping device for clamping a material belt and a material receiving device arranged on a main shaft, two ends of the clamping device are respectively rotatably connected with the left rotating seat and the right rotating seat, the clamping device further comprises a supporting plate, a material ejecting cylinder, a material ejecting plate and a clamping mechanism for clamping the material belt, the material receiving device further comprises an installing plate, a movable plate, a substrate, a driving cylinder, a material receiving cylinder and a material clamping cylinder, a piston rod of the driving cylinder is installed and connected with the upper surface of the movable plate, and the material receiving cylinder and the material clamping cylinder are both arranged on the lower surface of the substrate. The invention skillfully utilizes the lever principle, reduces the driving force required by the driving cylinder, pushes the guide post with the force of the cylinder which is multiplied by several times, saves resources and improves the production efficiency.
Description
Technical Field
The invention relates to an automatic feeding and discharging method for CNC machining, and relates to the technical field of machining.
Background
The intelligent electronic device is used as the entertainment and communication device with the widest application range, and the updating speed is higher, so manufacturers of the intelligent electronic devices also put forward higher requirements. The intelligent electronic equipment has many problems that parts can not be separated from machine tool equipment, and how to stably and effectively position, automatically feed and discharge a workpiece in the machining process of the machine tool.
Disclosure of Invention
The invention aims to provide an automatic feeding and discharging method for CNC machining, which skillfully utilizes the lever principle, reduces the driving force required by a driving cylinder, pushes a guide pillar with the force of the cylinder multiplied by several times, saves resources and improves the production efficiency; meanwhile, the automatic feeding and discharging method for the CNC machining is provided based on the automatic feeding and discharging method for the CNC machining.
In order to achieve the purpose, the invention adopts the technical scheme that: the automatic feeding and discharging method for CNC machining is based on an automatic feeding and discharging device, the automatic feeding and discharging device comprises a bottom plate, a left rotating seat, a right rotating seat, a clamping device for clamping a material belt and a material receiving device mounted on a main shaft, two ends of the clamping device are rotatably connected with the left rotating seat and the right rotating seat respectively, the left rotating seat and the right rotating seat are fixedly mounted on the bottom plate, and the material receiving device is movably arranged above the clamping device;
the clamping device further comprises a supporting plate, a material ejecting cylinder, a material ejecting plate and a clamping mechanism for clamping the material belt, wherein a through hole is formed in the supporting plate, the material ejecting cylinder is installed on the surface of one side of the supporting plate, the material belt is installed on the other side, opposite to the material ejecting cylinder, of the supporting plate through the clamping mechanism, and the material ejecting plate is installed and connected with a movable block of the material ejecting cylinder and penetrates through the through hole to be arranged below the material belt;
the clamping mechanism further comprises a first clamping plate and a plurality of second clamping plates, the second clamping plates are connected with the first clamping plates through a plurality of bolts and tightly press and fix the material belt between the second clamping plates and the first clamping plates, two sides of the material belt are respectively tightly pressed through two adjacent second clamping plates, one side of each first clamping plate, far away from the corresponding second clamping plate, is provided with a pressing plate, and the pressing plate is provided with a plurality of pressing heads corresponding to the T-shaped guide pillars;
the first clamping plate is provided with a plurality of mounting through holes corresponding to the second clamping plate on the surface of one side opposite to the second clamping plate, a T-shaped guide pillar is embedded in each mounting through hole, a threaded hole is formed in one end, close to the second clamping plate, of each T-shaped guide pillar, a bolt penetrates through the second clamping plate and is in threaded connection with the threaded hole of each T-shaped guide pillar, a plurality of elastic sheets are sleeved on each T-shaped guide pillar, one end, close to the second clamping plate, of each mounting through hole is provided with an inner flange, and the elastic sheets are located between the inner flange and a column head of each T-shaped guide pillar;
the pressing plate is arranged on the supporting plate through a driving mechanism, the driving mechanism further comprises at least one driving air cylinder and a rotating shaft, the driving air cylinder is fixedly arranged at the lower part of the supporting plate, a piston rod of the driving air cylinder is fixedly connected with the lower part of the pressing plate, and the rotating shaft penetrates through the upper part of the pressing plate and is fixedly connected with the supporting plate through a mounting seat;
the material collecting device further comprises a mounting plate, a movable plate, a substrate, a driving cylinder, a material collecting cylinder and a material clamping cylinder, wherein the movable plate is movably mounted on the front side surface of the mounting plate, the substrate is fixedly mounted on the lower surface of the movable plate, the driving cylinder is mounted on the mounting plate and positioned above the movable plate, a piston rod of the driving cylinder is mounted and connected with the upper surface of the movable plate, and the material collecting cylinder and the material clamping cylinder are both arranged on the lower surface of the substrate;
the material receiving cylinder is arranged on the lower surface of the substrate through an installation block and is positioned below the material clamping cylinder, and a material receiving box is connected onto the piston rod of the material receiving cylinder;
the outer side of the lower surface of the bending part is provided with an upward L-shaped concave angle part, a plurality of avoiding grooves are formed in the downward right-angle surface of the concave angle part, a plurality of through holes are formed in the upper surface of the bending part, sensors are arranged in the through holes respectively, and the lower end surface of each sensor is flush with the downward right-angle surface of the concave angle part;
the automatic loading and unloading method for CNC machining comprises the following steps:
step one, respectively installing a plurality of material belts between a first clamping plate and a plurality of second clamping plates of a clamping device, ensuring that the to-be-processed areas of the material belts extend out, locking bolts between the second clamping plates and a T-shaped guide pillar, and keeping the material belts in a clamping state under the action of elastic sheets;
step two, a driving cylinder of the material receiving device keeps a contraction state, and meanwhile, the CNC spindle moves to the position above the material belt to process the material belt;
after the material belt is processed, a driving cylinder of the material receiving device pushes the substrate to move downwards, and meanwhile, the CNC spindle moves, so that the processed product part at the upper end of the material belt is located between the clamping plate and the bending part;
driving the clamping plate to move towards the direction close to the bending part by the clamping cylinder and clamping the product;
fifthly, the left rotating seat and the right rotating seat drive the supporting plate to swing, the material belt clamped on the supporting plate swings along with the supporting plate, and the processed product is separated from the rest material belt in a breaking mode;
sixthly, the material receiving cylinder drives the material receiving box to move to the position below the clamping plate and the bending part;
seventhly, the clamping cylinder drives the clamping plate to move towards the direction away from the bending part, and the product is loosened, so that the processed product falls into the material receiving box;
step eight, the material receiving cylinder drives the material receiving box to move towards the direction far away from the bending part, and the material receiving box is contracted to the initial position;
step nine, moving the CNC main shaft to enable the concave angle part of the bending part to be located above the material belt;
step ten, a piston rod of a driving cylinder of the clamping device extends out to drive the pressing plate to rotate around the rotating shaft in the direction close to the T-shaped guide pillar;
step eleven, a pressure head on the pressure plate presses the end face of the T-shaped guide pillar, so that the T-shaped guide pillar pressing elastic sheet moves towards the direction of the second clamping plate;
step twelve, loosening the material belt by a plurality of second clamping plates under the action of the T-shaped guide post and the elastic sheet respectively;
thirteen, the ejector cylinder drives the ejector plate to drive the ejector rod to move upwards, the top surface of the ejector rod contacts the bottom surface of the material belt, and the material belt is pushed to move upwards;
fourteen, contacting the top surface of the material belt with a downward right-angle surface of the concave angle part of the bending part and stopping moving upwards;
fifteenth, a piston rod of a driving cylinder of the clamping device contracts to drive the pressing plate to rotate around the rotating shaft in the direction away from the T-shaped guide pillar, so that the pressing plate and the supporting plate are arranged in parallel;
sixthly, the pressure head on the pressure plate leaves the T-shaped guide post, and the material belt is clamped under the action of the elastic sheet and the bolt;
seventhly, driving a cylinder of the material receiving device to drive the substrate to move upwards and reset, so that the material receiving device keeps a contraction state;
eighteen, moving the CNC main shaft to the position above the material belt, and carrying out next round of processing on the material belt.
The further improved scheme in the technical scheme is as follows:
1. in the scheme, the ratio of the distance from the rotating shaft to the pressure head on the pressure plate to the distance from the rotating shaft to the joint of the pressure plate and the piston rod of the driving cylinder is 1: 2-5.
2. In the above scheme, the ejector plate upper surface is provided with a plurality of ejector rods, and the ejector rods are respectively located under the material belt.
3. In the scheme, the opposite surfaces of the upper fixed block and the lower fixed block of the material ejecting cylinder are respectively provided with an oil buffer.
4. In the above scheme, the pressure head is a spherical pressure head.
5. In the above scheme, the number of the at least one driving cylinder is 2.
6. In the above scheme, in the second step, the material belt clamped on the support plate is driven by the left rotating seat and the right rotating seat to be respectively positioned at a vertical upward 90-degree position, a vertical upward 0-degree position and a vertical upward 180-degree position for processing.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the automatic feeding and discharging method for CNC machining, disclosed by the invention, realizes the functions of automatic material ejection, material breaking and material receiving in the machining process, replaces manual feeding and discharging, saves manpower and time for manual feeding and discharging, and improves the working efficiency; secondly, the clamping device of the automatic loading and unloading device further comprises a supporting plate, a material ejecting cylinder, a material ejecting plate and a clamping mechanism for clamping the material belt, wherein a through hole is formed in the supporting plate, the material ejecting cylinder is installed on the surface of one side of the supporting plate, the material belt is installed on the other side, opposite to the material ejecting cylinder, of the supporting plate through the clamping mechanism, the material ejecting plate is installed and connected with a movable block of the material ejecting cylinder and penetrates through the through hole to be arranged below the material belt, and the clamping mechanism is arranged to realize tight clamping of the material belt and can be matched with the rotation of the supporting plate to realize automatic material severing operation; thirdly, a plurality of elastic sheets are sleeved on the T-shaped guide post, one end of the mounting through hole, which is close to the second clamping plate, is provided with an inner flange, the elastic sheets are positioned between the inner flange and a column head of the T-shaped guide post, and the elastic sheets are arranged, so that when the bolt is tightened, the elastic sheets are in a compressed state and react on the guide post, the guide post is pushed in a direction opposite to the second pressing sheet, the second clamping plate is driven to better compress the material belt, and the stability of the material belt in the processing process and the processing precision of the material belt are ensured; and thirdly, one side of the first clamping plate, which is far away from the second clamping plate, is provided with a pressing plate, a plurality of pressing heads corresponding to the T-shaped guide pillars are arranged on the pressing plate, the pressing heads press the end surfaces of the guide pillars, the guide pillars drive the bolts to move towards one side, which is far away from the guide pillars, the second pressing plate is loosened, the material belt is conveniently subjected to ejecting operation, and after the ejecting operation is completed, the material belt can be compressed again only by loosening the guide pillars.
2. The invention relates to an automatic loading and unloading method for CNC (computerized numerical control) machining, wherein a material receiving device of an automatic loading and unloading device further comprises a mounting plate, a movable plate, a substrate, a driving cylinder, a material receiving cylinder and a material clamping cylinder, wherein the movable plate is movably mounted on the front side surface of the mounting plate, the substrate is fixedly mounted on the lower surface of the movable plate, the driving cylinder is mounted on the mounting plate and positioned above the movable plate, a piston rod of the driving cylinder is mounted and connected with the upper surface of the movable plate, the driving cylinder is arranged to control the up-and-down motion of the substrate, after the CNC machining center finishes machining, the substrate is pushed down to carry out material receiving operation, and after the material receiving is finished, the substrate is upwards withdrawn, so that the; secondly, a pressing plate of the automatic material loosening device is arranged on a supporting plate through a driving mechanism, the driving mechanism further comprises at least one driving air cylinder and a rotating shaft, the driving air cylinder is fixedly arranged on the lower portion of the supporting plate, a piston rod of the driving air cylinder is fixedly connected with the lower portion of the pressing plate, the rotating shaft penetrates through the upper portion of the pressing plate and is fixedly connected with the supporting plate through a mounting seat, the pressing plate rotates under the driving of the rotating shaft as a fulcrum and is used for pressing a guide pillar, the second pressing plate is automatically loosened, automatic material ejection is convenient to carry out, after the material ejection is finished, the pressing plate rotates to a position parallel to the first pressing plate, the second pressing plate continues to press a material belt for processing, and automatic material loosening; in addition, the ratio of the distance from the rotating shaft to the pressure head on the pressure plate to the distance from the rotating shaft to the joint of the pressure plate and the piston rod of the driving cylinder is 1: 2-5, the lever principle is ingeniously utilized, the driving force required by the driving cylinder is reduced, the guide pillar is pushed by the force of the cylinder which is multiplied by several times, resources are saved, and the production efficiency is improved.
3. The invention relates to an automatic loading and unloading method for CNC (computer numerical control) machining, wherein an upward L-shaped concave angle part is arranged on the outer side of the lower surface of a bending part, a plurality of avoiding grooves are formed in a downward right-angle surface of the concave angle part, an ejector cylinder drives an ejector plate to drive an ejector rod to move upwards, the top surface of the ejector rod is in contact with the bottom surface of a material belt and pushes the material belt to move upwards, the top surface of the material belt is in contact with the downward right-angle surface of the concave angle part of the bending part and stops moving upwards, the automatic control on the length of an ejector can be realized through the matching arrangement of the concave angle part of a material receiving mechanism and the ejector rod of a clamping device, the heights of upward ejections are ensured to be the same.
Drawings
FIG. 1 is a schematic structural diagram of an automatic loading and unloading device based on the invention;
FIG. 2 is a schematic structural diagram of a material receiving device in an automatic loading and unloading device based on the invention;
FIG. 3 is a schematic structural diagram of a clamping device in an automatic loading and unloading device based on the invention;
FIG. 4 is a schematic view of a partial structure of a clamping device in the automatic loading and unloading device based on the present invention;
FIG. 5 is a schematic sectional view of a partial structure of a clamping device in an automatic loading and unloading device based on the present invention;
FIG. 6 is a schematic view of a partial structure of a material receiving device in an automatic loading and unloading device based on the present invention.
In the above drawings: 1. a base plate; 2. a left rotating base; 3. a right rotary base; 4. a clamping device; 1b, a support plate; 2b, a material ejecting cylinder; 3b, a material ejecting plate; 4b, material belt; 5b, a clamping mechanism; 6b, through holes; 7b, a movable block; 10b, a material ejecting rod; 11b, a first splint; 12b, a second splint; 13b, bolts; 14b, mounting through holes; 15b, a T-shaped guide post; 16b, a threaded hole; 17b, a spring plate; 18b, an inner flange; 21b, a pressure plate; 22b, a pressure head; 24b, a driving cylinder; 25b, a rotating shaft; 26b, a mounting seat; 5. a material receiving device; 1a, mounting plates; 2a, a movable plate; 3a, a substrate; 4a, driving a cylinder; 5a, a material receiving cylinder; 6a, a material clamping cylinder; 7a, an adapter plate; 14a, a clamping plate; 15a, a bending part; 17a, a mounting block; 18a, a material receiving box; 20a, rib plates; 6. a reentrant corner portion; 7. a position avoiding groove; 8. a sensor.
Detailed Description
The invention is further described with reference to the following figures and examples:
example 1: an automatic feeding and discharging method for CNC machining is based on an automatic feeding and discharging device, the automatic feeding and discharging device comprises a bottom plate 1, a left rotating seat 2, a right rotating seat 3, a clamping device 4 for clamping a material belt 4b and a material receiving device 5 installed on a main shaft, two ends of the clamping device 4 are rotatably connected with the left rotating seat 2 and the right rotating seat 3 respectively, the left rotating seat 2 and the right rotating seat 3 are fixedly installed on the bottom plate 1, and the material receiving device 5 is movably arranged above the clamping device 4;
the clamping device 4 further comprises a supporting plate 1b, a material ejecting cylinder 2b, a material ejecting plate 3b and a clamping mechanism 5b for clamping the material belt 4b, a through hole 6b is formed in the supporting plate 1b, the material ejecting cylinder 2b is installed on the surface of one side of the supporting plate 1b, the material belt 4b is installed on the other side, opposite to the material ejecting cylinder 2b, of the supporting plate 1b through the clamping mechanism 5b, and the material ejecting plate 3b is installed and connected with a movable block 7b of the material ejecting cylinder 2b and penetrates through the through hole 6b to be arranged below the material belt 4 b;
the clamping mechanism 5b further comprises a first clamping plate 11b and a plurality of second clamping plates 12b, the second clamping plates 12b are connected with the first clamping plate 11b through a plurality of bolts 13b and press and fix the material belt 4b between the second clamping plates 12b and the first clamping plates 11b, two sides of the material belt 4b are respectively pressed through two adjacent second clamping plates 12b, one side, far away from the second clamping plates 12b, of the first clamping plate 11b is provided with a pressing plate 21b, and the pressing plate 21b is provided with a plurality of pressing heads 22b corresponding to the T-shaped guide posts 15 b;
a plurality of mounting through holes 14b corresponding to the second clamping plate 12b are formed in the surface, opposite to the second clamping plate 12b, of the first clamping plate 11b, a T-shaped guide post 15b is embedded in each mounting through hole 14b, a threaded hole 16b is formed in one end, close to the second clamping plate 12b, of each T-shaped guide post 15b, a bolt 13b penetrates through the second clamping plate 12b and is in threaded connection with the threaded hole 16b of the T-shaped guide post 15b, a plurality of elastic pieces 17b are sleeved on each T-shaped guide post 15b, an inner flange 18b is arranged at one end, close to the second clamping plate 12b, of each mounting through hole 14b, and the elastic pieces 17b are located between the inner flange 18b and a column head of the T-shaped guide post 15 b;
the pressing plate 21b is mounted on the supporting plate 1b through a driving mechanism, the driving mechanism further comprises at least one driving cylinder 24b and a rotating shaft 25b, the driving cylinder 24b is fixedly mounted on the lower portion of the supporting plate 1b, a piston rod of the driving cylinder 24b is mounted and connected with the lower portion of the pressing plate 21b, and the rotating shaft 25b penetrates through the upper portion of the pressing plate 21b and is fixedly connected with the supporting plate 1b through a mounting seat 26 b;
the material receiving device 5 further comprises a mounting plate 1a, a movable plate 2a, a substrate 3a, a driving cylinder 4a, a material receiving cylinder 5a and a material clamping cylinder 6a, wherein the movable plate 2a is movably mounted on the front side surface of the mounting plate 1a, the substrate 3a is fixedly mounted on the lower surface of the movable plate 2a, the driving cylinder 4a is mounted on the mounting plate 1a and positioned above the movable plate 2a, a piston rod of the driving cylinder 4a is connected with the upper surface of the movable plate 2a in an installing manner, and the material receiving cylinder 5a and the material clamping cylinder 6a are both arranged on the lower surface of the substrate 3 a;
the material receiving cylinder 5a is mounted on the lower surface of the substrate 3a through a mounting block 17a and is positioned below the material clamping cylinder 6a, and a material receiving box 18a is connected to the piston rod of the material receiving cylinder 5 a;
an upward L-shaped concave angle part 6 is arranged on the outer side of the lower surface of the bending part 15a, a plurality of avoiding grooves 7 are formed in the downward right-angle surface of the concave angle part 6, a plurality of through holes are formed in the upper surface of the bending part 15a, a sensor 8 is arranged in each through hole, and the lower end surface of each sensor 8 is flush with the downward right-angle surface of the concave angle part 6;
the automatic loading and unloading method for CNC machining comprises the following steps:
step one, respectively installing a plurality of material belts 4b between a first clamping plate 11b and a plurality of second clamping plates 12b of a clamping device 4, ensuring that the to-be-processed areas of the material belts extend out, locking bolts 13b between the second clamping plates 12b and a T-shaped guide post 15b, and keeping the material belts 4b in a clamping state under the action of elastic sheets 17 b;
step two, the driving cylinder 4a of the material receiving device 5 keeps a contraction state, and meanwhile, the CNC spindle moves to the position above the material belt 4b to process the material belt 4 b;
step three, after the material belt 4b is processed, the driving cylinder 4a of the material receiving device 5 pushes the substrate 3a to move downwards, and meanwhile, the CNC spindle moves, so that the processed product part at the upper end of the material belt 4b is located between the clamping plate 14a and the bending part 15 a;
fourthly, the clamping cylinder 6a drives the clamping plate 14a to move towards the direction close to the bending part 15a and clamp the product;
fifthly, the left rotating seat 2 and the right rotating seat 3 drive the supporting plate 1b to swing, the material belt 4b clamped on the supporting plate 1b swings along with the supporting plate 1b, and the processed product is separated from the rest material belt 4 b;
sixthly, the material receiving cylinder 5a drives the material receiving box 18a to move to the position below the clamping plate 14a and the bending part 15 a;
seventhly, the clamping cylinder 6a drives the clamping plate 14a to move towards the direction far away from the bending part 15a, and the product is loosened, so that the processed product falls into the material receiving box 18 a;
step eight, the material receiving cylinder 5a drives the material receiving box 18a to move towards the direction far away from the bending part 15a, and the material receiving box 18a is contracted to the initial position;
step nine, moving the CNC main shaft to enable the reentrant corner portion 6 of the bending portion 15a to be located above the material belt 4 b;
step ten, extending a piston rod of a driving cylinder 24b of the clamping device 4 to drive the pressing plate 21b to rotate around the rotating shaft 25b to the direction close to the T-shaped guide post 15 b;
step eleven, a pressure head 22b on a pressure plate 21b presses the end surface of the T-shaped guide post 15b, so that the T-shaped guide post 15b presses the elastic sheet 17b to move towards the second clamping plate 12 b;
step twelve, the second clamping plates 12b loosen the material belt 4b under the action of the T-shaped guide post 15b and the elastic sheet 17b respectively;
thirteen, the ejector cylinder 2b drives the ejector plate 3b to drive the ejector rod 10b to move upwards, the top surface of the ejector rod 10b contacts the bottom surface of the material strip 4b, and the material strip 4b is pushed to move upwards;
step fourteen, the top surface of the material belt 4b contacts with a downward right-angle surface of the concave angle part 6 of the bending part 15a and stops moving upwards;
fifteenth, the piston rod of the driving cylinder 24b of the clamping device 4 contracts to drive the pressing plate 21b to rotate around the rotating shaft 25b in the direction away from the T-shaped guide post 15b, so that the pressing plate 21b is arranged in parallel with the supporting plate 1 b;
sixthly, the pressure head 22b on the pressure plate 21b leaves the T-shaped guide post 15b, and the material belt 4b is clamped under the action of the elastic sheet 17b and the bolt 13 b;
seventhly, driving the base plate 3a to move upwards and reset by a driving cylinder 4a of the material receiving device 5, so that the material receiving device 5 keeps a contraction state;
eighteen, moving the CNC spindle to the position above the material belt 4b, and processing the material belt 4b in the next round.
The ratio of the distance from the rotating shaft 25b to the pressure head 22b on the pressure plate 21b to the distance from the rotating shaft 25b to the joint of the pressure plate 21b and the piston rod of the driving cylinder 24b is 1: 5; a plurality of ejector rods 10b are arranged on the upper surface of the ejector plate 3b, and the ejector rods 10b are respectively positioned under the material belt 4 b; the opposite surfaces of the upper fixed block and the lower fixed block of the material ejecting cylinder 2b are respectively provided with an oil buffer; in the second step, the material belt 4b clamped on the support plate 1b is driven by the left rotary seat 2 and the right rotary seat 3 to be respectively positioned at a 90-degree position, a 0-degree position and a 180-degree position vertically upwards for processing.
Example 2: an automatic feeding and discharging method for CNC machining is based on an automatic feeding and discharging device, the automatic feeding and discharging device comprises a bottom plate 1, a left rotating seat 2, a right rotating seat 3, a clamping device 4 for clamping a material belt 4b and a material receiving device 5 installed on a main shaft, two ends of the clamping device 4 are rotatably connected with the left rotating seat 2 and the right rotating seat 3 respectively, the left rotating seat 2 and the right rotating seat 3 are fixedly installed on the bottom plate 1, and the material receiving device 5 is movably arranged above the clamping device 4;
the clamping device 4 further comprises a supporting plate 1b, a material ejecting cylinder 2b, a material ejecting plate 3b and a clamping mechanism 5b for clamping the material belt 4b, a through hole 6b is formed in the supporting plate 1b, the material ejecting cylinder 2b is installed on the surface of one side of the supporting plate 1b, the material belt 4b is installed on the other side, opposite to the material ejecting cylinder 2b, of the supporting plate 1b through the clamping mechanism 5b, and the material ejecting plate 3b is installed and connected with a movable block 7b of the material ejecting cylinder 2b and penetrates through the through hole 6b to be arranged below the material belt 4 b;
the clamping mechanism 5b further comprises a first clamping plate 11b and a plurality of second clamping plates 12b, the second clamping plates 12b are connected with the first clamping plate 11b through a plurality of bolts 13b and press and fix the material belt 4b between the second clamping plates 12b and the first clamping plates 11b, two sides of the material belt 4b are respectively pressed through two adjacent second clamping plates 12b, one side, far away from the second clamping plates 12b, of the first clamping plate 11b is provided with a pressing plate 21b, and the pressing plate 21b is provided with a plurality of pressing heads 22b corresponding to the T-shaped guide posts 15 b;
a plurality of mounting through holes 14b corresponding to the second clamping plate 12b are formed in the surface, opposite to the second clamping plate 12b, of the first clamping plate 11b, a T-shaped guide post 15b is embedded in each mounting through hole 14b, a threaded hole 16b is formed in one end, close to the second clamping plate 12b, of each T-shaped guide post 15b, a bolt 13b penetrates through the second clamping plate 12b and is in threaded connection with the threaded hole 16b of the T-shaped guide post 15b, a plurality of elastic pieces 17b are sleeved on each T-shaped guide post 15b, an inner flange 18b is arranged at one end, close to the second clamping plate 12b, of each mounting through hole 14b, and the elastic pieces 17b are located between the inner flange 18b and a column head of the T-shaped guide post 15 b;
the pressing plate 21b is mounted on the supporting plate 1b through a driving mechanism, the driving mechanism further comprises at least one driving cylinder 24b and a rotating shaft 25b, the driving cylinder 24b is fixedly mounted on the lower portion of the supporting plate 1b, a piston rod of the driving cylinder 24b is mounted and connected with the lower portion of the pressing plate 21b, and the rotating shaft 25b penetrates through the upper portion of the pressing plate 21b and is fixedly connected with the supporting plate 1b through a mounting seat 26 b;
the material receiving device 5 further comprises a mounting plate 1a, a movable plate 2a, a substrate 3a, a driving cylinder 4a, a material receiving cylinder 5a and a material clamping cylinder 6a, wherein the movable plate 2a is movably mounted on the front side surface of the mounting plate 1a, the substrate 3a is fixedly mounted on the lower surface of the movable plate 2a, the driving cylinder 4a is mounted on the mounting plate 1a and positioned above the movable plate 2a, a piston rod of the driving cylinder 4a is connected with the upper surface of the movable plate 2a in an installing manner, and the material receiving cylinder 5a and the material clamping cylinder 6a are both arranged on the lower surface of the substrate 3 a;
the material receiving cylinder 5a is mounted on the lower surface of the substrate 3a through a mounting block 17a and is positioned below the material clamping cylinder 6a, and a material receiving box 18a is connected to the piston rod of the material receiving cylinder 5 a;
an upward L-shaped concave angle part 6 is arranged on the outer side of the lower surface of the bending part 15a, a plurality of avoiding grooves 7 are formed in the downward right-angle surface of the concave angle part 6, a plurality of through holes are formed in the upper surface of the bending part 15a, a sensor 8 is arranged in each through hole, and the lower end surface of each sensor 8 is flush with the downward right-angle surface of the concave angle part 6;
the automatic loading and unloading method for CNC machining comprises the following steps:
step one, respectively installing a plurality of material belts 4b between a first clamping plate 11b and a plurality of second clamping plates 12b of a clamping device 4, ensuring that the to-be-processed areas of the material belts extend out, locking bolts 13b between the second clamping plates 12b and a T-shaped guide post 15b, and keeping the material belts 4b in a clamping state under the action of elastic sheets 17 b;
step two, the driving cylinder 4a of the material receiving device 5 keeps a contraction state, and meanwhile, the CNC spindle moves to the position above the material belt 4b to process the material belt 4 b;
step three, after the material belt 4b is processed, the driving cylinder 4a of the material receiving device 5 pushes the substrate 3a to move downwards, and meanwhile, the CNC spindle moves, so that the processed product part at the upper end of the material belt 4b is located between the clamping plate 14a and the bending part 15 a;
fourthly, the clamping cylinder 6a drives the clamping plate 14a to move towards the direction close to the bending part 15a and clamp the product;
fifthly, the left rotating seat 2 and the right rotating seat 3 drive the supporting plate 1b to swing, the material belt 4b clamped on the supporting plate 1b swings along with the supporting plate 1b, and the processed product is separated from the rest material belt 4 b;
sixthly, the material receiving cylinder 5a drives the material receiving box 18a to move to the position below the clamping plate 14a and the bending part 15 a;
seventhly, the clamping cylinder 6a drives the clamping plate 14a to move towards the direction far away from the bending part 15a, and the product is loosened, so that the processed product falls into the material receiving box 18 a;
step eight, the material receiving cylinder 5a drives the material receiving box 18a to move towards the direction far away from the bending part 15a, and the material receiving box 18a is contracted to the initial position;
step nine, moving the CNC main shaft to enable the reentrant corner portion 6 of the bending portion 15a to be located above the material belt 4 b;
step ten, extending a piston rod of a driving cylinder 24b of the clamping device 4 to drive the pressing plate 21b to rotate around the rotating shaft 25b to the direction close to the T-shaped guide post 15 b;
step eleven, a pressure head 22b on a pressure plate 21b presses the end surface of the T-shaped guide post 15b, so that the T-shaped guide post 15b presses the elastic sheet 17b to move towards the second clamping plate 12 b;
step twelve, the second clamping plates 12b loosen the material belt 4b under the action of the T-shaped guide post 15b and the elastic sheet 17b respectively;
thirteen, the ejector cylinder 2b drives the ejector plate 3b to drive the ejector rod 10b to move upwards, the top surface of the ejector rod 10b contacts the bottom surface of the material strip 4b, and the material strip 4b is pushed to move upwards;
step fourteen, the top surface of the material belt 4b contacts with a downward right-angle surface of the concave angle part 6 of the bending part 15a and stops moving upwards;
fifteenth, the piston rod of the driving cylinder 24b of the clamping device 4 contracts to drive the pressing plate 21b to rotate around the rotating shaft 25b in the direction away from the T-shaped guide post 15b, so that the pressing plate 21b is arranged in parallel with the supporting plate 1 b;
sixthly, the pressure head 22b on the pressure plate 21b leaves the T-shaped guide post 15b, and the material belt 4b is clamped under the action of the elastic sheet 17b and the bolt 13 b;
seventhly, driving the base plate 3a to move upwards and reset by a driving cylinder 4a of the material receiving device 5, so that the material receiving device 5 keeps a contraction state;
eighteen, moving the CNC spindle to the position above the material belt 4b, and processing the material belt 4b in the next round.
The ratio of the distance from the rotating shaft 25b to the pressure head 22b on the pressure plate 21b to the distance from the rotating shaft 25b to the joint of the pressure plate 21b and the piston rod of the driving cylinder 24b is 1: 4; the indenter 22b is a spherical indenter; the number of the at least one driving cylinder 24b is 2; in the second step, the material belt 4b clamped on the support plate 1b is driven by the left rotary seat 2 and the right rotary seat 3 to be respectively positioned at a 90-degree position, a 0-degree position and a 180-degree position vertically upwards for processing.
When the automatic feeding and discharging method for CNC machining is adopted, the automatic material ejecting, breaking and receiving functions in the machining process are achieved, manual feeding and discharging are replaced, manpower and manual feeding and discharging time are saved, and the working efficiency is improved; secondly, due to the arrangement of the clamping mechanism of the automatic feeding and discharging device, the material belt is tightly clamped, and automatic material breaking operation can be realized by matching with the rotation of the supporting plate; thirdly, a plurality of elastic sheets are sleeved on the T-shaped guide post, one end of the mounting through hole, which is close to the second clamping plate, is provided with an inner flange, the elastic sheets are positioned between the inner flange and a column head of the T-shaped guide post, and the elastic sheets are arranged, so that when the bolt is tightened, the elastic sheets are in a compressed state and react on the guide post, the guide post is pushed in a direction opposite to the second pressing sheet, the second clamping plate is driven to better compress the material belt, and the stability of the material belt in the processing process and the processing precision of the material belt are ensured; thirdly, the pressing head presses the end face of the guide pillar, the guide pillar drives the bolt to move to one side far away from the guide pillar, the second pressing plate is loosened, the material belt is conveniently ejected, and after ejection is completed, the material belt can be compressed again only by loosening the guide pillar; thirdly, the driving cylinder is arranged to control the up-and-down movement of the substrate, after the CNC machining center finishes machining, the substrate is pushed down to perform material receiving operation, and after the material receiving operation is finished, the substrate is retracted upwards to avoid interference with machining devices such as a cutter and the like, so that the integrated operation of machining and material receiving is realized; thirdly, the pressing plate rotates under the driving of the driving cylinder by taking the rotating shaft as a fulcrum to press the guide pillar, so that the second pressing plate is automatically released, automatic material ejection is convenient, and after the material ejection is finished, the pressing plate rotates to a position parallel to the first pressing plate, so that the second pressing plate continues to press the material belt for processing, and the automatic material loosening operation is realized; thirdly, the lever principle is ingeniously utilized, the driving force required by the driving cylinder is reduced, the guide pillar is pushed by the force of the cylinder which is multiplied by several times, resources are saved, and the production efficiency is improved; thirdly, the concave angle part of the material receiving mechanism is matched with the material ejecting rod of the clamping device, so that the automatic control of the length of the ejected material can be realized, the upward ejecting height is ensured to be the same every time, and the ejecting precision is ensured, thereby ensuring that the height of each product is uniform.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. An automatic feeding and discharging method for CNC machining is characterized in that: the automatic feeding and discharging method for CNC machining is based on an automatic feeding and discharging device, the automatic feeding and discharging device comprises a bottom plate (1), a left rotating seat (2), a right rotating seat (3), a clamping device (4) used for clamping a material belt (4 b) and a material receiving device (5) installed on a main shaft, two ends of the clamping device (4) are rotatably connected with the left rotating seat (2) and the right rotating seat (3) respectively, the left rotating seat (2) and the right rotating seat (3) are fixedly installed on the bottom plate (1), and the material receiving device (5) is movably arranged above the clamping device (4);
the clamping device (4) further comprises a supporting plate (1 b), a material ejecting cylinder (2 b), a material ejecting plate (3 b) and a clamping mechanism (5 b) for clamping the material belt (4 b), a through hole (6 b) is formed in the supporting plate (1 b), the material ejecting cylinder (2 b) is installed on the surface of one side of the supporting plate (1 b), the material belt (4 b) is installed on the other side, opposite to the material ejecting cylinder (2 b), of the supporting plate (1 b) through the clamping mechanism (5 b), the material ejecting plate (3 b) is installed and connected with a movable block (7 b) of the material ejecting cylinder (2 b) and penetrates through the through hole (6 b) to be arranged below the material belt (4 b);
the clamping mechanism (5 b) further comprises a first clamping plate (11 b) and a plurality of second clamping plates (12 b), the second clamping plates (12 b) are connected with the first clamping plate (11 b) through a plurality of bolts (13 b) and tightly press and fix the material belt (4 b) between the second clamping plates (12 b) and the first clamping plate (11 b), two sides of the material belt (4 b) are tightly pressed through two adjacent second clamping plates (12 b), one side, far away from the second clamping plates (12 b), of the first clamping plate (11 b) is provided with a pressing plate (21 b), and the pressing plate (21 b) is provided with a plurality of pressing heads (22 b) corresponding to the T-shaped guide pillars (15 b);
the first clamping plate (11 b) is provided with a plurality of mounting through holes (14 b) corresponding to the second clamping plate (12 b) on the surface of one side opposite to the second clamping plate (12 b), a T-shaped guide post (15 b) is embedded in each mounting through hole (14 b), a threaded hole (16 b) is formed in one end, close to the second clamping plate (12 b), of each T-shaped guide post (15 b), a bolt (13 b) penetrates through the second clamping plate (12 b) and is in threaded connection with the threaded hole (16 b) of each T-shaped guide post (15 b), a plurality of elastic sheets (17 b) are sleeved on each T-shaped guide post (15 b), one end, close to the second clamping plate (12 b), of each mounting through hole (14 b) is provided with an inner flange (18 b), and the elastic sheets (17 b) are located between the inner flange (18 b) and a column head of each T-shaped guide post (15 b);
the pressing plate (21 b) is arranged on the supporting plate (1 b) through a driving mechanism, the driving mechanism further comprises at least one driving air cylinder (24 b) and a rotating shaft (25 b), the driving air cylinder (24 b) is fixedly arranged on the lower portion of the supporting plate (1 b), a piston rod of the driving air cylinder (24 b) is fixedly connected with the lower portion of the pressing plate (21 b), and the rotating shaft (25 b) penetrates through the upper portion of the pressing plate (21 b) and is fixedly connected with the supporting plate (1 b) through a mounting seat (26 b);
the material receiving device (5) further comprises a mounting plate (1 a), a movable plate (2 a), a substrate (3 a), a driving cylinder (4 a), a material receiving cylinder (5 a) and a material clamping cylinder (6 a), wherein the movable plate (2 a) is movably mounted on the front side surface of the mounting plate (1 a), the substrate (3 a) is fixedly mounted on the lower surface of the movable plate (2 a), the driving cylinder (4 a) is mounted on the mounting plate (1 a) and located above the movable plate (2 a), a piston rod of the driving cylinder (4 a) is connected with the upper surface of the movable plate (2 a) in an installing mode, and the material receiving cylinder (5 a) and the material clamping cylinder (6 a) are both arranged on the lower surface of the substrate (3 a);
the material receiving device comprises a base plate (3 a), a material clamping cylinder (6 a), a material receiving cylinder (5 a), a material receiving cylinder (6 a), a clamping plate (14 a), a downward bending part (15 a), a material receiving cylinder (5 a), a mounting block (17 a), a material receiving box (18 a), a material conveying cylinder and a material conveying cylinder, wherein the material clamping cylinder (6 a) is mounted on the lower surface of the base plate (3 a);
an upward L-shaped concave angle part (6) is arranged on the outer side of the lower surface of the bending part (15 a), a plurality of avoiding grooves (7) are formed in the downward right-angle surface of the concave angle part (6), a plurality of through holes are formed in the upper surface of the bending part (15 a), a sensor (8) is arranged in each through hole, and the lower end surface of the sensor (8) is flush with the downward right-angle surface of the concave angle part (6);
the automatic loading and unloading method for CNC machining comprises the following steps:
step one, a plurality of material belts (4 b) are respectively arranged between a first clamping plate (11 b) and a plurality of second clamping plates (12 b) of a clamping device (4), so that the area to be processed of the material belts is ensured to extend out, bolts (13 b) between the second clamping plates (12 b) and a T-shaped guide post (15 b) are locked, and the material belts (4 b) are kept in a clamping state under the action of elastic sheets (17 b);
step two, a driving cylinder (4 a) of the material receiving device (5) keeps a contraction state, and meanwhile, the CNC spindle moves to the position above the material belt (4 b) to process the material belt (4 b);
after the material belt (4 b) is processed, a driving cylinder (4 a) of the material receiving device (5) pushes the substrate (3 a) to move downwards, and meanwhile, the CNC spindle moves, so that the processed product part at the upper end of the material belt (4 b) is located between the clamping plate (14 a) and the bending part (15 a);
fourthly, the clamping cylinder (6 a) drives the clamping plate (14 a) to move towards the direction close to the bending part (15 a) and clamp the product;
fifthly, the left rotating seat (2) and the right rotating seat (3) drive the supporting plate (1 b) to swing, the material belt (4 b) clamped on the supporting plate (1 b) swings along with the supporting plate (1 b), and the processed product is separated from the rest material belt (4 b) in a breaking way;
sixthly, the material receiving cylinder (5 a) drives the material receiving box (18 a) to move to the position below the clamping plate (14 a) and the bending part (15 a);
seventhly, the clamping cylinder (6 a) drives the clamping plate (14 a) to move towards the direction away from the bending part (15 a) to loosen the product, so that the processed product falls into the material receiving box (18 a);
eighthly, the material receiving cylinder (5 a) drives the material receiving box (18 a) to move towards the direction away from the bending part (15 a) to shrink the material receiving box (18 a) to the initial position;
ninthly, moving the CNC main shaft to enable the concave angle part (6) of the bending part (15 a) to be located above the material belt (4 b);
step ten, a piston rod of a driving cylinder (24 b) of the clamping device (4) extends out to drive a pressing plate (21 b) to rotate around a rotating shaft (25 b) towards the direction close to the T-shaped guide post (15 b);
eleven, pressing the end surface of the T-shaped guide post (15 b) by a pressing head (22 b) on a pressing plate (21 b) to enable the T-shaped guide post (15 b) to press the elastic sheet (17 b) to move towards the direction of the second clamping plate (12 b);
step twelve, loosening the material belt (4 b) by a plurality of second clamping plates (12 b) under the action of the T-shaped guide posts (15 b) and the elastic sheets (17 b) respectively;
thirteen, the ejector cylinder (2 b) drives the ejector plate (3 b) to drive the ejector rod (10 b) to move upwards, the top surface of the ejector rod (10 b) contacts the bottom surface of the material belt (4 b), and the material belt (4 b) is pushed to move upwards;
fourteen, contacting the top surface of the material belt (4 b) with the downward right-angle surface of the concave angle part (6) of the bending part (15 a) and stopping moving upwards;
fifteenth, a piston rod of a driving cylinder (24 b) of the clamping device (4) contracts to drive the pressing plate (21 b) to rotate around a rotating shaft (25 b) in the direction away from the T-shaped guide post (15 b), so that the pressing plate (21 b) and the supporting plate (1 b) are arranged in parallel;
sixthly, the pressure head (22 b) on the pressure plate (21 b) leaves the T-shaped guide post (15 b), and the material belt (4 b) is clamped under the action of the elastic sheet (17 b) and the bolt (13 b);
seventhly, driving a driving cylinder (4 a) of the material receiving device (5) to drive the substrate (3 a) to move upwards for resetting, so that the material receiving device (5) keeps a contraction state;
eighteen, moving the CNC main shaft to the position above the material belt (4 b), and processing the material belt (4 b) in the next round.
2. The automatic loading and unloading method for CNC machining of claim 1, characterized in that: the ratio of the distance from the rotating shaft (25 b) to a pressure head (22 b) on the pressure plate (21 b) to the distance from the rotating shaft (25 b) to the connecting position of the pressure plate (21 b) and a piston rod of the driving cylinder (24 b) is 1:2 to 5.
3. The automatic loading and unloading method for CNC machining of claim 1, characterized in that: the material ejecting device is characterized in that a plurality of material ejecting rods (10 b) are arranged on the upper surface of the material ejecting plate (3 b), and the material ejecting rods (10 b) are respectively located under the material belt (4 b).
4. The automatic loading and unloading method for CNC machining of claim 1, characterized in that: and the opposite surfaces of the upper fixed block and the lower fixed block of the material ejecting cylinder (2 b) are respectively provided with an oil buffer.
5. The automatic loading and unloading method for CNC machining of claim 1, characterized in that: the pressure head (22 b) is a spherical pressure head.
6. The automatic loading and unloading method for CNC machining of claim 1, characterized in that: the number of the at least one driving cylinder (24 b) is 2.
7. The automatic loading and unloading method for CNC machining of claim 1, characterized in that: in the second step, the material belt (4 b) clamped on the support plate (1 b) is driven by the left rotary seat (2) and the right rotary seat (3) to be respectively positioned at a 90-degree position, a 0-degree position and a 180-degree position vertically upwards for processing.
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| CN115284052A (en) * | 2022-10-08 | 2022-11-04 | 赫比(成都)精密塑胶制品有限公司 | Automatic processing device and automatic processing method |
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| KR101391258B1 (en) * | 2008-02-11 | 2014-05-07 | 한미반도체 주식회사 | Flipping device and sawing ＆ placement having the same |
| CN203448572U (en) * | 2013-06-28 | 2014-02-26 | 勤钦精密工业(昆山)有限公司 | Negative angle overturn de-molding device for metal material product bending formation |
| CN104439494A (en) * | 2013-09-24 | 2015-03-25 | 西北机器有限公司 | Stripping device of longitudinal shearing set |
| CN205525191U (en) * | 2016-03-31 | 2016-08-31 | 佛山市松川机械设备有限公司 | Turning device is carried to packagine machine material |
| CN205736327U (en) * | 2016-05-30 | 2016-11-30 | 东莞市沃德精密机械有限公司 | Automatically material stripping device |
| CN206066015U (en) * | 2016-09-29 | 2017-04-05 | 歌尔科技有限公司 | Clamping tool |
| CN106391926B (en) * | 2016-11-30 | 2019-05-07 | 东莞市捷瑞电子设备有限公司 | A kind of electronic component pin molding machine |
| CN107877170A (en) * | 2017-12-28 | 2018-04-06 | 厦门锐大自动化设备有限公司 | A kind of larynx button assembling riveting furling plate round machine |
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