CN108000919B - Bench small electric punching machine - Google Patents
Bench small electric punching machine Download PDFInfo
- Publication number
- CN108000919B CN108000919B CN201810062098.1A CN201810062098A CN108000919B CN 108000919 B CN108000919 B CN 108000919B CN 201810062098 A CN201810062098 A CN 201810062098A CN 108000919 B CN108000919 B CN 108000919B
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- 238000004080 punching Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000001360 synchronised effect Effects 0.000 claims description 28
- 230000033001 locomotion Effects 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 16
- 230000009286 beneficial effect Effects 0.000 description 22
- 230000007774 longterm Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
- B30B1/266—Drive systems for the cam, eccentric or crank axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/14—Control arrangements for mechanically-driven presses
- B30B15/148—Electrical control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention discloses a bench type small electric punch. The electric punching machine comprises a punching part, a lower die part, an eccentric wheel moving mechanism, a motor driving part, a workbench and a base plate, wherein the punching part comprises an upper die part, a floating part and a guiding part, four corners of the upper die base and the floating plate are connected into a truss through the guiding part, the guiding part can move up and down through the workbench, the upper surface of the base plate is fixed with the motor driving part and the eccentric wheel moving mechanism, the motor driving part drives the eccentric wheel moving mechanism through a transmission belt, and the eccentric wheel moving mechanism is hinged with the floating part. The invention has the effects of motor drive, small fluctuation of stamping force, stable product size, larger stamping force range value, high stamping speed and high productivity.
Description
Technical Field
The invention relates to punching equipment, in particular to a table type small electric punch.
Background
The existing pneumatic structure punching machine adopts an air cylinder to stretch and push a punched product, and has the defects that: firstly, the air pressure is unstable, the consistency of stamping effect is poor each time, the fluctuation of the product size is large, and the product size stability is poor; secondly, the cylinder is used for stamping, the stamping force is determined by air pressure, the range of the stamping force which can be provided is smaller, and the type of applicable products is narrower; thirdly, the die jig used for the cylinder punching structure is poor in structural universality; fourth, the pneumatic stamping speed is low, the productivity is low, much labor force is needed, and the continuous mass production requirement is difficult to meet; fifthly, because of the slow speed, a large number of pneumatic punching machines are needed, and when the pneumatic punching machines are used in a large quantity, the air supply quantity of factories is required, so that the shortage phenomenon can occur. The punching machine is driven by a hydraulic cylinder, but more greasy dirt can be generated in a factory, products can be polluted, and the punching machine is required to be oiled regularly and is not durable.
Disclosure of Invention
To address one or more of the above problems, the present invention provides a bench-type small electric punch.
According to one aspect of the invention, the bench type small electric punch comprises a punching part, a lower die part, an eccentric wheel moving mechanism, a motor driving part, a workbench and a base plate, wherein the workbench is fixed on the upper surface of the machine frame, a cover plate is arranged on the periphery of the outer side of the machine frame, the lower die part is fixed on the upper surface of the workbench, the lower surface of the workbench is connected with the base plate through a main upright post, the punching part comprises an upper die part, a floating part and a guiding part, the floating part is positioned between the workbench and the base plate, the floating part comprises a floating plate, the upper die part, the lower die part, the workbench, the floating part and the base plate are vertically arranged from top to bottom in sequence and are parallel to each other,
The upper die part comprises an upper die holder, the lower end of the upper die holder is provided with an upper die plate, the lower die part comprises a lower die holder, the upper end of the lower die holder is provided with a lower die plate, the upper die plate is matched with the lower die plate, four corners of the upper die holder and the floating plate are connected into a truss through guide parts, the guide parts can move up and down through a workbench,
The upper surface of the base plate is fixed with a motor driving part and an eccentric wheel moving mechanism, the motor driving part drives the eccentric wheel moving mechanism through a transmission belt, the eccentric wheel moving mechanism is hinged with the floating part, a product is placed on the lower die plate, the motor driving part operates and drives the eccentric wheel moving mechanism to rotate, the eccentric wheel moving mechanism drives the floating part and the upper die part to move up and down, the upper die part moves down to finish stamping the product, the upper die part moves up, and the upper die part is separated from the product.
The small-size electric punch of desk-top adopts motor drive, and the hold-in range transmission, eccentric wheel motion transmission straight reciprocating motion, and floating part, base plate, motor drive portion, eccentric wheel motion are located the frame, and the frame is sealed by the apron, and its beneficial effect is: firstly, the motor is driven, the fluctuation of stamping force is small, the consistency of stamping effect is high, the dimensional fluctuation of a stamped product is small, and the product is stable in size; secondly, the motor is driven, the stamping force range value is larger, and the motor is applicable to production of various products; thirdly, the upper template and the lower template are convenient to replace, and can be suitable for production of various products; fourthly, the stamping speed is high, the productivity is high, the required labor force is reduced, and the method is suitable for large-scale continuous production; fifthly, the electric motor is adopted, and products without greasy dirt or waste water pollution can be produced cleanly; sixthly, the stamping part is of a truss structure, has firm and stable structure and small deformation in long-term operation, and can ensure long-term stability of long-term operation products; seventhly, the cover plate seals the frame, so that the floating part, the base plate, the motor driving part and the eccentric wheel movement mechanism are not polluted by impurities or impurities, and the service life of parts is ensured.
Further, the motor driving part is a stepping motor or a servo motor, the motor driving part is provided with a brake mechanism, the driving belt is a synchronous belt, the overhanging shaft of the motor driving part is fixedly provided with a driving synchronous belt pulley, the middle of the eccentric wheel movement mechanism is provided with a driven synchronous belt pulley, and the driving belt pulley is connected with the driving synchronous belt pulley and the driven synchronous belt pulley. The beneficial effects are as follows: the motor adopts servo motor or step motor ability accurate control rotational speed, realizes the accurate control of punching press, guarantees that punching press power is unanimous at every turn, and blanking effect is stable, product size stability, and synchronous belt drive has further guaranteed the precision.
Further, the eccentric wheel movement mechanism comprises an eccentric shaft, two movable arms and two belt seat bearings, wherein a driven synchronous belt pulley is fixed in the middle of the eccentric shaft, two ends of the eccentric shaft are respectively connected with one belt seat bearing, and the movable arms are fixed between the driven synchronous belt pulley and the belt seat bearings. The eccentric wheel can also adopt an eccentric cam, and has the beneficial effects that: the eccentric wheel movement mechanism has high reciprocating motion repetition precision, stable action and high mechanism operation precision.
Further, two connecting blocks are symmetrically fixed on the lower side of the floating plate along the center, each connecting block corresponds to the movable arm, and the connecting shaft is connected with each connecting block and each movable arm. The beneficial effects are as follows: the two connecting blocks are symmetrically arranged at the center of the floating plate, the up-and-down motion transmitted by the moving arm is uniformly applied to the floating plate, the stamping part bears a vertical upward load, no unbalanced load and no torsion are caused, and the stamping part is free from blocking phenomenon, torsion phenomenon and the like, which seriously damage the stamping effect.
Further, a main shaft section is arranged in the middle of the eccentric shaft, eccentric sections are sequentially formed at two ends of the main shaft section, a positioning section is formed at the outer side of the eccentric sections, the main shaft section is fixed with a driven synchronous pulley, the eccentric sections are connected with a movable arm through bearings, and the positioning section is connected with a bearing with a seat. The beneficial effects are as follows: the eccentric shafts are symmetrically arranged, the main shaft section is centered, the two sides of the two eccentric sections are uniformly distributed, the transmission load is reasonable, the consistency of the eccentric effects of the two sides is high, and further, the consistency of the up-and-down motion of the movable arm is good, and the uniform transmission of the reciprocating linear motion and the balanced punching load are further ensured.
Further, a positioning section is provided with a central hole, a rotary table is fixed on the central hole, the rotary table corresponds to the sensor, and the sensor is fixed on the bearing with the seat. The beneficial effects are as follows: the rotary table and the sensor are arranged, so that the fluctuation value after stamping each time can be detected, if deviation is detected, the sensor feeds back a signal, the motor is controlled to reset to a working position, the consistency of each movement is ensured, and the accumulated error and larger random error are prevented, so that an unsuccessful stamping effect is caused.
Further, a buffer part is arranged between the base plate and the floating plate and comprises four buffer shafts, the lower ends of the four buffer shafts are symmetrically fixed on the periphery of the base plate, a spring is sleeved at the upper end of each buffer shaft, and the upper end of the spring is fixed on the floating plate. The beneficial effects are as follows: the spring is arranged for buffering, and the redundant downward kinetic energy is absorbed, so that the stamping effect is softer, and the product size is more stable.
Further, each buffer shaft comprises a body, the lower end of the body is fixed on the base plate, an extending section is formed upwards on the body, a circular positioning surface is formed at the intersection of the body and the extending section, four blind holes are formed in the floating plate, a spring is sleeved outside the extending section, and the upper side of the spring is connected with the blind holes and the lower side of the spring is connected with the positioning surface. The beneficial effects are as follows: the blind holes and the positioning surfaces ensure firm fixation of the springs, straightness and position of compression and rebound of the springs, and high precision.
Further, the guide part comprises a guide post, a first guide sleeve and a second guide sleeve which are matched with each other, the four corners of the upper die holder are symmetrically provided with first through holes, the four corners of the lower die holder are symmetrically provided with second through holes, the corresponding positions of the four corners of the workbench are provided with third through holes, the floating plate comprises stepped through holes, the stepped through holes comprise an upper stepped hole and a lower stepped hole, the diameter of the upper stepped hole is larger than that of the lower stepped hole, the first through holes and the second through holes are fixedly provided with the first guide sleeve, the upper stepped hole is fixedly provided with the second guide sleeve, the lower stepped hole is fixedly provided with a sealing post, the upper end of the guide post and the middle shaft sleeve are sleeved on the first guide sleeve, and the lower end of the guide post penetrates through the third through hole and is fixedly arranged on the second guide sleeve. The first guide sleeve and the second guide sleeve are one of a linear bearing, a copper sleeve or an oilless bearing. The beneficial effects are as follows: the guide post, the first guide sleeve and the second guide sleeve are arranged, the stamping part reciprocates up and down relative to the workbench more accurately, and the stamping effect is better.
Further, a cover plate is arranged on the upper side of the upper die base, an upper base plate is arranged between the upper die base and the upper die plate, and a lower base plate is arranged between the lower die base and the lower die plate.
Further, the cover plate also comprises two openable front doors, and the front doors are provided with handles. The beneficial effects are as follows: the front door and the handle are arranged, so that the maintenance is convenient.
Further, the frame includes the upper frame, and the upper frame comprises mutually perpendicular connection's stull and longitudinal support, and stull and longitudinal support both ends are sealed respectively and are had the reinforcing plate, and the workstation is connected to the upper frame upside, and the upper frame downside is connected with four vertical legs all around, connects through the stull between the adjacent vertical leg, stull, longitudinal support and vertical leg are rectangular pipe. The beneficial effects are as follows: the frame has good rigidity, high planeness and high applicability.
Further, a secondary upright post is also arranged between the base plate and the workbench for connection and fixation.
Drawings
FIG. 1 is a three-dimensional schematic view of a bench-type small electric punch according to an embodiment of the invention;
FIG. 2 is a three-dimensional schematic view (II) of the bench-type small electric punch shown in FIG. 1;
FIG. 3 is a schematic front view of the bench-type small electric punch of FIG. 2;
FIG. 4 is a left side schematic view of the bench-type small electric punch of FIG. 2;
FIG. 5 is a schematic top view of the bench-top small electric punch of FIG. 2;
FIG. 6 is a schematic cross-sectional view of the bench-type small electric punch of FIG. 5;
FIG. 7 is a schematic front view of the press section, table, and lower die section of FIG. 2;
FIG. 8 is a schematic cross-sectional view of the press section, table, and lower die section of FIG. 7;
FIG. 9 is a partial three-dimensional schematic view of the bench-top small electric punch of FIG. 2;
FIG. 10 is a left side schematic view of the bench-top small electric punch of FIG. 9;
FIG. 11 is a schematic cross-sectional view of the bench-type small electric punch of FIG. 9;
FIG. 12 is a three-dimensional schematic view of the eccentric motion mechanism of FIG. 9;
FIG. 13 is a three-dimensional schematic view of the eccentric shaft shown in FIG. 12;
FIG. 14 is a schematic front view of the eccentric shaft of FIG. 13;
FIG. 15 is a schematic left-hand view of the eccentric shaft of FIG. 13;
FIG. 16 is a schematic front view of the buffer portion shown in FIG. 2;
FIG. 17 is a schematic partial cross-sectional view of the cushioning portion of FIG. 16;
The upper die part 01, the upper die part 1, the upper die holder 10, the first through hole 101, the upper die plate 11, the upper backing plate 12, the cover plate 13, the floating part 2, the floating plate 20, the blind hole 201, the stepped through hole 202, the upper stepped hole 2021, the lower stepped hole 2022, the connecting block 21, the connecting shaft 22, the guide part 3, the guide post 31, the first guide sleeve 32, the second guide sleeve 33, the seal post 34, the lower die part 02, the lower die holder 020, the second through hole 0201, the lower die plate 021, the lower backing plate 022, the eccentric wheel moving mechanism 03, the driven synchronous pulley 031, the eccentric shaft 032, the main shaft section 0321, the eccentric section 0322, the positioning section 0323, the bearing center hole 0324, the moving arm 033, the belt seat bearing 034, the bearing 035, the turntable 036, the sensor 037, the motor driving part 04, the driving synchronous pulley, the driving belt 042, the workbench 05, the third through hole 0501, the base plate 06, the main column 061, the secondary column 062, the buffer part 07, the buffer shaft 071, the body 0710, the overhanging section 0711, the positioning section 0712, the positioning section 082, the upper support frame 08, the upper support frame 0821, the front support frame 0811, the front support frame 0821, and the front support frame 0823.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 to 17 schematically show a bench-type small electric punch according to an embodiment of the present invention. As shown in the figure, the device comprises a stamping part 01, a lower die part 02, an eccentric wheel moving mechanism 03, a motor driving part 04, a workbench 05 and a base plate 06, wherein the workbench 05 is fixed on the upper surface of a frame 08, a cover plate 09 is arranged on the periphery of the outer side of the frame 08, the lower die part 02 is fixed on the upper surface of the workbench 05, the lower surface of the workbench 05 is connected with the base plate 06 through a main upright 061, the stamping part 01 comprises an upper die part 1, a floating part 2 and a guiding part 3, the floating part 2 is positioned between the workbench 05 and the base plate 06, the floating part 2 comprises a floating plate 20, the upper die part 1, the lower die part 02, the workbench 05 and the floating part 2 and the base plate 06 are vertically arranged from top to bottom in sequence and are parallel to each other,
The upper die part 1 comprises an upper die holder 10, an upper die plate 11 is arranged at the lower end of the upper die holder 10, the lower die part 02 comprises a lower die holder 020, a lower die plate 021 is arranged at the upper end of the lower die holder 020, the upper die plate 11 is matched with the lower die plate 021, four corners of the upper die holder 10 and the floating plate 2 are connected into a truss through a guide part 3, the guide part 3 can move up and down through a workbench 05,
The upper surface of the base plate 06 is fixedly provided with a motor driving part 04 and an eccentric wheel moving mechanism 03, the motor driving part 04 drives the eccentric wheel moving mechanism 03 through a transmission belt 042, the eccentric wheel moving mechanism 03 is hinged with a floating part 2, a product is placed on a lower template 021, the motor driving part 04 operates and drives the eccentric wheel moving mechanism 03 to rotate, the eccentric wheel moving mechanism 03 drives the floating part 2 and an upper die part 1 to move up and down, the upper die part 1 moves down to finish stamping products, the upper die part 1 moves upwards, and the upper die part 1 is separated from the products.
The small-size electric punch of desk-top adopts motor drive, and the hold-in range transmission, eccentric wheel motion 03 transmission straight reciprocating motion, and floating part 2, base plate 06, motor drive portion 04, eccentric wheel motion 03 are located frame 08, and frame 08 is sealed by apron 09, and its beneficial effect is: firstly, the motor is driven, the fluctuation of stamping force is small, the consistency of stamping effect is high, the dimensional fluctuation of a stamped product is small, and the product is stable in size; secondly, the motor is driven, the stamping force range value is larger, and the motor is applicable to production of various products; thirdly, the upper template 11 and the lower template 021 are convenient to replace, and can be suitable for production of various products; fourthly, the stamping speed is high, the productivity is high, the required labor force is reduced, and the method is suitable for large-scale continuous production; fifthly, the electric motor is adopted, and products without greasy dirt or waste water pollution can be produced cleanly; sixth, the stamping part 01 is of a truss structure, has firm and stable structure and small deformation in long-term operation, and can ensure long-term stability of long-term operation products; seventh, the cover plate 09 seals the frame 08, and the floating part 2, the base plate 06, the motor driving part 04 and the eccentric wheel moving mechanism 03 are not polluted by impurities or impurities, so that the service life of parts is ensured.
Preferably, as shown in fig. 9 to 11, the motor driving part 04 is a stepping motor or a servo motor, the motor driving part 04 is provided with a brake mechanism, the driving belt 042 is a synchronous belt, the overhanging shaft of the motor driving part 04 fixedly drives the synchronous belt wheel 041, the driven synchronous belt wheel 031 is arranged in the middle of the eccentric wheel movement mechanism 03, and the driving belt 042 is connected with the driving synchronous belt wheel 041 and the driven synchronous belt wheel 031. The beneficial effects are as follows: the motor adopts servo motor or step motor ability accurate control rotational speed, realizes the accurate control of punching press, guarantees that punching press power is unanimous at every turn, and blanking effect is stable, product size stability, and synchronous belt drive has further guaranteed the precision.
Preferably, as shown in fig. 12, the eccentric wheel movement mechanism 03 includes an eccentric shaft 032, two moving arms 033 and two bearing blocks 034, a driven synchronous pulley 031 is fixed in the middle of the eccentric shaft 032, two ends of the eccentric shaft 032 are respectively connected with one bearing block 034, and the moving arms 033 are fixed between the driven synchronous pulley 031 and the bearing block 034. Eccentric cam can also be adopted for eccentric wheel 032, and its beneficial effect is: the eccentric wheel movement mechanism 03 has high repeated precision of reciprocating movement, stable action and high operation precision of the mechanism.
Preferably, as shown in fig. 7 to 8, two connection blocks 21 are symmetrically fixed along the center of the lower side of the floating plate 20, each connection block 21 corresponds to the moving arm 033, and the connection shaft 22 connects the respective connection blocks 21 and the moving arm 033. The beneficial effects are as follows: the two connecting blocks 21 are symmetrical with the floating plate 20 at the center, the up-and-down motion transmitted by the moving arm 033 is uniformly applied to the floating plate 20, the stamping part 01 bears a vertical upward load, no unbalanced load and no torsion, and the stamping part 01 is free from blocking caused by inclined rising, and the stamping effect is seriously damaged by torsion and the like.
Preferably, as shown in fig. 13 to 15, a main shaft section 0321 is arranged in the middle of the eccentric shaft 032, two ends of the main shaft section 0321 are sequentially provided with eccentric sections 0322, a positioning section 0322 is formed outside the eccentric sections 0322, the main shaft section 0321 is provided with a driven synchronous pulley 031, the eccentric sections 0322 are connected with a movable arm 033 through a bearing 035, and the positioning section 0323 is connected with a bearing 034 with a seat. The beneficial effects are as follows: the eccentric shafts 032 are symmetrically arranged, the main shaft section 0321 is centered, the two sides of the two eccentric sections 0322 are uniformly distributed, the transmission load is reasonable, the consistency of the eccentric effects of the two sides is high, and further, the consistency of the up-and-down motion of the movable arm 033 is good, so that the uniform transmission of the reciprocating linear motion and the balanced punching load are further ensured.
Preferably, as shown in fig. 13 to 15, one positioning section 0323 is provided with a central hole 0324, a turntable 036 is fixed on the central hole 0324, the turntable 036 corresponds to the sensor 037, and the sensor 037 is fixed on the bearing 034 with a seat. The beneficial effects are as follows: the rotary table 036 and the sensor 037 are arranged, the fluctuation value after stamping each time can be detected, if deviation is detected, the sensor 037 feeds back a signal, the motor is controlled to reset to a working position, the consistency of each movement is ensured, and the accumulated error and larger random error are prevented, so that an unsuccessful stamping effect is caused.
Preferably, as shown in fig. 16 to 17, a buffer portion 07 is disposed between the base plate 06 and the floating plate 20, the buffer portion 07 includes four buffer shafts 071, the lower ends of the four buffer shafts 071 are symmetrically fixed around the base plate 06, a spring 072 is sleeved on the upper end of each buffer shaft 071, and the upper end of the spring 072 is fixed on the floating plate 20. The beneficial effects are as follows: the spring 072 is arranged for buffering, and the redundant downward kinetic energy is absorbed, so that the stamping effect is softer, and the product size is more stable.
Preferably, as shown in fig. 16 to 17, each buffer shaft 071 includes a body 0710, the lower end of the body 0710 is fixed to the base plate 06, the body 0710 is upwardly formed with an overhanging section 0711, the intersection of the body 0710 and the overhanging section 0711 is formed with an annular positioning surface 0712, four blind holes 201 are formed on the floating plate 20, the spring 072 is sleeved outside the overhanging section 0711, the upper side of the spring 072 is connected to the blind holes 201, and the lower side is connected to the positioning surface 0712. The beneficial effects are as follows: the blind hole 201 and the positioning surface 0712 ensure that the spring 072 is firmly fixed, the straightness and the position degree of compression and rebound of the spring 072 are ensured, and the precision is high.
Preferably, as shown in fig. 7 to 8, the guiding portion 3 includes a guide post 31, a first guide sleeve 32 and a second guide sleeve 33 which are matched with each other, the four corners of the upper die holder 10 are symmetrically provided with a first through hole 101, the four corners of the lower die holder 020 are symmetrically provided with a second through hole 0201, the corresponding positions of the four corners of the workbench 05 are provided with a third through hole 0501, the floating plate 20 includes a stepped through hole 202, the stepped through hole 202 includes an upper step hole 2021 and a lower step hole 2022, the diameter of the upper step hole 2021 is larger than that of the lower step hole 2022, the first through hole 101 and the second through hole 0201 are fixedly provided with the first guide sleeve 32, the upper step hole 2021 is fixedly provided with the second guide sleeve 33, the lower step hole 2022 is fixedly provided with a sealing post 34, the upper end and the middle of the guide post 31 are sleeved on the first guide sleeve 32, and the lower end of the guide post 31 passes through the third through hole 0501 and is fixedly provided with the second guide sleeve 33. The first guide sleeve 32 and the second guide sleeve 33 are one of a linear bearing, a copper sleeve or an oilless bearing. The beneficial effects are as follows: the guide post 31, the first guide sleeve 32 and the second guide sleeve 33 are arranged, so that the up-and-down reciprocating motion of the stamping part 1 relative to the workbench 05 is more precise, and the stamping effect is better.
Preferably, as shown in fig. 7 to 8, a cover plate 13 is provided on the upper side of the upper die holder 10, an upper pad 12 is provided between the upper die holder 10 and the upper die plate 11, and a lower pad 022 is provided between the lower die holder 020 and the lower die plate 021.
Preferably, as shown in fig. 1, the cover 09 further includes two openable front doors 091, and a handle 0911 is provided on the front door 091. The beneficial effects are as follows: the front door 091 and the handle 0911 are provided, which is convenient for maintenance.
Preferably, as shown in fig. 1, the frame 08 includes an upper frame 081, the upper frame 081 is composed of a cross brace 0811 and a longitudinal brace 0812 which are connected vertically, two ends of the cross brace 0811 and the longitudinal brace 0812 are respectively sealed with a reinforcing plate 0813, the upper side of the upper frame 081 is connected with a workbench 05, four stand legs 082 are connected around the lower side of the upper frame 081, adjacent stand legs 082 are connected through the reinforcing brace 083, and the cross brace 0811, the longitudinal brace 0812 and the stand legs 082 are rectangular pipes. The beneficial effects are as follows: the frame 081 has good rigidity, high planeness and high applicability.
Preferably, as shown in fig. 2 to 4, a secondary upright 062 is further arranged between the base plate 06 and the workbench 05 for connection and fixation.
What has been described above is merely some embodiments of the present invention. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit of the invention.
Claims (1)
1. The table type small electric punching machine is characterized by comprising a punching part (01), a lower die part (02), an eccentric wheel moving mechanism (03), a motor driving part (04), a workbench (05) and a base plate (06), wherein the workbench (05) is fixed on the upper surface of a rack (08), a cover plate (09) is arranged on the periphery of the outer side of the rack (08), the lower die part (02) is fixed on the upper surface of the workbench (05), the lower surface of the workbench (05) is connected with the base plate (06) through a main upright post (061), the punching part (01) comprises an upper die part (1), a floating part (2) and a guide part (3), the floating part (2) is positioned between the workbench (05) and the base plate (06), the floating part (2) comprises a floating plate (20), the upper die part (1), the lower die part (02), the workbench (05) and the floating part (2) and the base plate (06) are arranged vertically downwards in sequence and are parallel to each other,
The upper die part (1) comprises an upper die holder (10), an upper die plate (11) is arranged at the lower end of the upper die holder (10), the lower die part (02) comprises a lower die holder (020), a lower die plate (021) is arranged at the upper end of the lower die holder (020), the upper die plate (11) is matched with the lower die plate (021), four corners of the upper die holder (10) and the floating plate (20) are connected into a truss through guide parts (3), the guide parts (3) can move up and down through the workbench (05),
The upper surface of the base plate (06) is fixedly provided with the motor driving part (04) and the eccentric wheel moving mechanism (03), the motor driving part (04) drives the eccentric wheel moving mechanism (03) through a transmission belt (042), the eccentric wheel moving mechanism (03) is hinged with the floating part (2), a product is arranged on the lower template (021), the motor driving part (04) operates and drives the eccentric wheel moving mechanism (03) to rotate, the eccentric wheel moving mechanism (03) drives the floating part (2) and the upper die part (1) to move up and down, the upper die part (1) moves down to finish punching products, the upper die part (1) moves up, and the upper die part (1) is separated from the product;
the motor driving part (04) is a stepping motor or a servo motor, the transmission belt (042) is a synchronous belt, an overhanging shaft of the motor driving part (04) is fixedly used for driving a synchronous belt wheel (041), a driven synchronous belt wheel (031) is arranged in the middle of the eccentric wheel moving mechanism (03), and the transmission belt (042) is connected with the driving synchronous belt wheel (041) and the driven synchronous belt wheel (031);
The eccentric wheel movement mechanism (03) comprises an eccentric shaft (032), two movable arms (033) and two belt seat bearings (034), wherein the driven synchronous pulley (031) is fixed in the middle of the eccentric shaft (032), two ends of the eccentric shaft (032) are respectively connected with one belt seat bearing (034), and the movable arms (033) are fixed between the driven synchronous pulley (031) and the belt seat bearings (034);
two connecting blocks (21) are symmetrically fixed on the lower side of the floating plate (20) along the center, each connecting block (21) corresponds to the movable arm (033), and a connecting shaft (22) is connected with each connecting block (21) and each movable arm (033);
The middle of the eccentric shaft (032) is provided with a main shaft section (0321), two ends of the main shaft section (0321) are sequentially provided with eccentric sections (0322), the outer side of the eccentric sections (0322) is provided with a positioning section (0323), the main shaft section (0321) is fixed with the driven synchronous pulley (031), the eccentric sections (0322) are connected with the movable arm (033) through bearings (035), and the positioning sections (0323) are connected with the bearings (034) with seats;
One positioning section (0323) is provided with a central hole (0324), a turntable (036) is fixed on the central hole (0324), the turntable (036) corresponds to a sensor (037), and the sensor (037) is fixed on the bearing with seat (034);
A buffer part (07) is arranged between the base plate (06) and the floating plate (20), the buffer part (07) comprises four buffer shafts (071), the lower ends of the four buffer shafts (071) are symmetrically fixed on the periphery of the base plate (06), the upper end of each buffer shaft (071) is sleeved with a spring (072), and the upper end of each spring (072) is fixed on the floating plate (20);
Each buffer shaft (071) comprises a body (0710), the lower end of the body (0710) is fixed on the base plate (06), an overhanging section (0711) is formed upwards on the body (0710), an annular locating surface (0712) is formed at the intersection of the body (0710) and the overhanging section (0711), four blind holes (201) are formed in the floating plate (20), the spring (072) is sleeved outside the overhanging section (0711), the upper side of the spring (072) is connected to the blind holes (201) and the lower side is connected to the locating surface (0712);
The guide part (3) comprises guide posts (31), a first guide sleeve (32) and a second guide sleeve (33) which are matched with each other, a first through hole (101) is symmetrically formed in the four corners of the upper die holder (10), a second through hole (0201) is symmetrically formed in the four corners of the lower die holder (020), a third through hole (0501) is formed in the corresponding position of the four corners of the workbench (05), the floating plate (20) comprises a stepped through hole (202), the stepped through hole (202) comprises an upper step hole (2021) and a lower step hole (2022), the diameter of the upper step hole (2021) is larger than that of the lower step hole (2022), the first through hole (101) and the second through hole (0201) are fixedly provided with the first guide sleeve (32), the second guide sleeve (33) is fixedly provided with the upper step hole (2022), a sealing post (34) is fixedly arranged on the lower step hole (2022), the upper end of the guide post (31) and the middle sleeve are sleeved on the first guide sleeve (32), and the lower end of the guide post (31) penetrates through the second guide sleeve (2022) and is fixedly arranged on the second three-way guide sleeve (050).
The upper side of the upper die holder (10) is provided with a cover plate (13), an upper base plate (12) is arranged between the upper die holder (10) and the upper die plate (11), and a lower base plate (022) is arranged between the lower die holder (020) and the lower die plate (021).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062098.1A CN108000919B (en) | 2018-01-22 | 2018-01-22 | Bench small electric punching machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810062098.1A CN108000919B (en) | 2018-01-22 | 2018-01-22 | Bench small electric punching machine |
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| CN108000919A CN108000919A (en) | 2018-05-08 |
| CN108000919B true CN108000919B (en) | 2024-04-26 |
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| CN201810062098.1A Active CN108000919B (en) | 2018-01-22 | 2018-01-22 | Bench small electric punching machine |
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|---|---|
| CN108000919A (en) | 2018-05-08 |
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