CN105215139B - Bridge type numerical control needle avoiding and gas cutting clamping servo feeding stamping system - Google Patents

Abstract

The invention discloses a bridge type numerical control needle avoiding and gas cutting clamping servo feeding stamping system, which comprises a lower die base, an upper die base, a movable base, a gas cutting clamping mechanism and a feeding mechanism, wherein the upper die base is provided with a plurality of clamping grooves; at least one group of punching needles is arranged in the upper die base, and a plurality of numerical control needle avoiding mechanisms are arranged on the upper die base; a bridge type core rod is erected on the movable seat; the air-break clamping mechanism comprises a clamping piece, a clamping spring, a pressing piece and an inflating device; the numerical control needle avoiding mechanism is used for controlling the corresponding punching needle to extend out or retract, so that the relation between punching and non-punching of the punching needle in the die is well processed, and through holes in various arrangements can be formed on a workpiece; the workpiece is clamped by the air-cut clamping mechanism, so that ventilation is not required to be kept in the punching process, the operation safety is ensured, and convenience is brought to punching operation; and through being provided with the bridge type plug to the cooperation vacuum suction device makes the in-process of operation can be in time clear away the waste material fast, has effectively guaranteed the quality and the safety of punching a hole.

Description

Bridge type CNC needle avoidance clamping servo feeding stamping system

technical field

The invention relates to the technology in the field of stamping equipment, in particular to a bridge-type digitally controlled needle avoidance air-break clamping servo feeding stamping system.

Background technique

The punching machine is composed of a manual pump or an electric pump and a working head. The oil delivery hose is connected by a quick connector, which is reliable and fast in sealing. There is no directional restriction during operation, and it is easy to assemble and disassemble. This machine is specially used for angle iron, Drilling flat iron, copper, aluminum and other metal plates, especially suitable for field work in electric power, construction and other industries.

All punching machines need to use stamping dies. The punching needles in the current stamping dies are fixed and cannot move up and down according to needs, so that when punching, some punching needles that do not need to be punched need to be removed, and then reinstalled when necessary. In the mold, it is impossible to form holes with different requirements for continuous punching, and it is impossible to complete the holes that need to leave non-punching sides on the four sides and the holes are evenly arranged. In continuous punching, different specifications are required, or the restricted structure when filling punching holes cannot be completed. The relationship between punching and not punching of the punching needle is handled well in the mold. And, the current stamping die directly fixes the workpiece by means of a cylinder, that is, when the cylinder is working with gas, the workpiece can be clamped, and when the cylinder is out of gas, the workpiece cannot be clamped. The air cannot be cut off when the workpiece is punched, otherwise it will bring a greater safety hazard, and it will also cause inconvenience to the punching operation. In addition, the current stamping die cannot remove the waste in time during the operation, which will greatly affect the punching quality and safety of the product.

Contents of the invention

In view of this, the present invention aims at the deficiencies existing in the prior art, and its main purpose is to provide a bridge-type numerical control needle shield air-break clamping servo feeding stamping system, which can effectively solve the problem that the existing stamping die set cannot be handled well in the die The relationship between punching and non-punching of the punching needle, the inability to safely position the workpiece, and the inability to clean up the waste in time and other issues.

To achieve the above object, the present invention adopts the following technical solutions:

A bridge-type numerical control needle avoidance clamping servo feeding stamping system, including a lower mold base, an upper mold base, a movable seat, an air clamping mechanism and a feeding mechanism;

The upper die base can be movable up and down directly above the lower die base, at least one set of punching needles is arranged in the upper die base, and a plurality of punch pins are arranged on the upper die base to control the extension or retraction of the corresponding punching pins. Back-to-back digital avoidance mechanism;

The movable seat can be arranged on the lower mold base in a longitudinal and movable manner, and a bridge-type mandrel is erected on the movable seat. The two ends of the bridge-type mandrel are respectively connected with the lower mold base and the upper mold base. A plurality of feeding holes are provided, each punching needle of the group of punching needles is located directly above the corresponding lower feeding holes, and a collecting groove and a feeding groove are arranged in the bridge-type mandrel, and the collecting grooves are located in multiple lower feeding holes. Below the material hole, one end of the material guide trough is connected to the collection tank, and the other end of the material guide trough is connected to the vacuum suction device;

The air-cut clamping mechanism is arranged on the movable seat and moves back and forth longitudinally with the movable seat. The air-break clamping mechanism includes a clamping piece, a clamping spring, a pressing piece and an inflating device. The clamping piece can be set on the On the movable seat, the clamping spring urges the clamping part to move to one side to clamp and fix the workpiece, the pressing part urges the clamping part to move to the other side to loosen the workpiece, and the inflatable device promotes the pressing part Back and forth activities;

The feeding mechanism is arranged on the lower mold base, and the feeding mechanism promotes the longitudinal movement of the movable seat, and the workpiece moves longitudinally back and forth with the movable seat relative to the bridge-type mandrel.

As a preferred solution, guide rails are provided on both sides of the lower mold base, and the movable base moves back and forth longitudinally along the two guide rails.

As a preferred solution, the movable seat includes a base plate, a supporting plate and a push spring, the supporting plate is arranged on the surface of the base plate, the supporting plate supports the workpiece upward, and the pushing spring is arranged between the base plate and the supporting plate During this period, the push spring impels the supporting plate to move upward.

As a preferred solution, there are four bridge-type mandrels, and the four bridge-type mandrels are horizontally arranged side by side at intervals, corresponding to each bridge-type mandrel is provided with a group of punching needles, and corresponding to each group of punching needles is provided with Multiple CNC lightning rod mechanisms.

As a preferred solution, the digitally controlled needle avoidance mechanism includes a vertical pressing block, a horizontal slider and a driving mechanism. The needle moves downward, and the horizontal slider can be set above the vertical pressing block horizontally and back and forth. The horizontal slider drives the vertical pressing block to move downward. The driving mechanism is connected with the horizontal slider and drives the horizontal sliding block to move back and forth horizontally. .

As a preferred solution, the driving mechanism is an air cylinder.

As a preferred solution, the bridge-type mandrel includes a main rod body, a knife-edge plate and a cover plate, the aforementioned collecting groove and material guide groove are formed by recessing the surface of the main rod body, and the aforementioned feeding hole is arranged at the knife-edge On the board, the knife-edge plate covers the material collecting trough, and the cover plate covers the material guide trough.

As a preferred solution, the main rod body is recessed with a transversely extending dovetail groove, the knife-edge plate is a dovetail block, the knife-edge plate is embedded in the dovetail groove and positioned longitudinally, and the knife-edge plate is positioned laterally by a plurality of pins, the knife-edge plate A plurality of pins are inserted into the main rod through the knife-edge plate from top to bottom,

As a preferred solution, the bridge-type mandrel has a square cross section.

As a preferred solution, the feeding mechanism is a servo feeding mechanism, the servo feeding mechanism includes a screw and a servo motor, the screw is rotatably installed on the lower mold base, the movable seat is screwed with the screw, the servo The motor is fixed on the lower mold base, and the output shaft of the servo motor is connected with one end of the screw rod to drive the screw rod to rotate.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

By using the numerical control needle avoidance mechanism to control the extension or retraction of the corresponding punching needle, the relationship between the punching and non-punching of the punching needle in the mold is well handled, and various arrangements of through holes can be formed on the workpiece; The holding mechanism clamps the workpiece so that there is no need to maintain ventilation during the punching process, which ensures the safety of the operation and brings convenience to the punching operation; During the process, the waste can be quickly and promptly cleaned away, effectively ensuring the quality and safety of punching.

In order to more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the perspective view of the assembly of the preferred embodiment of the present invention;

Fig. 2 is a schematic diagram of an assembled perspective view from another angle of a preferred embodiment of the present invention;

Figure 3 is an exploded view of a preferred embodiment of the present invention;

Fig. 4 is a transverse sectional view of a preferred embodiment of the present invention;

Fig. 5 is an enlarged schematic view at position A in Fig. 4;

Figure 6 is a longitudinal sectional view of a preferred embodiment of the present invention;

Fig. 7 is an enlarged schematic view at position B in Fig. 6;

Fig. 8 is a three-dimensional schematic diagram of a workpiece sleeved on a bridge-type mandrel in a preferred embodiment of the present invention;

Fig. 9 is an exploded view of Fig. 8;

Fig. 10 is a perspective view of the workpiece after processing in the preferred embodiment of the present invention.

Explanation of the accompanying drawings:

10. Lower mold holder 11. Guide rail

20. Upper mold seat 30. Movable seat

31. Substrate 32. Support plate

33. Push spring 40. Air cut-off clamping mechanism

41. Clamping piece 42. Clamping spring

43. Pressure piece 50. Feeding mechanism

51. Screw rod 52. Servo motor

60. Punch needle 70. Numerical control needle avoidance mechanism

71. Vertical pressing block 72. Horizontal slider

73. Driving mechanism 80. Bridge mandrel

81. Main rod body 82. Knife edge plate

83. Cover plate 84. Pin

801, feeding hole 802, collecting tank

803, guide groove 804, dovetail groove

805, dovetail groove 90, workpiece

91, through hole.

detailed description

Please refer to Figures 1 to 10, which show the specific structure of a preferred embodiment of the present invention, including a lower mold base 10, an upper mold base 20, a movable seat 30, an air-break clamping mechanism 40 and a feeding mechanism 50 .

The upper die base 20 can be moved up and down directly above the lower die base 10. At least one set of punch needles 60 is arranged in the upper die base 20, and a plurality of punch pins 60 for controlling the corresponding punches are arranged on the upper die base 20. The needle 60 protrudes or retracts the digitally controlled needle avoidance mechanism 70 . In this embodiment, the digitally controlled needle avoidance mechanism 70 includes a vertical pressing block 71, a horizontal slider 72 and a driving mechanism 73. The vertical pressing block 71 can be moved up and down directly above the corresponding punch pin 60. The straight pressing block 71 drives the corresponding punching needle 60 to move downward, and the horizontal slider 72 can be arranged on the top of the vertical pressing block 71 horizontally and reciprocally. The horizontal sliding block 72 drives the vertical pressing block 71 to move downward. 73 is connected with the horizontal slider 72 and drives the horizontal slider 72 to move back and forth horizontally, and the driving mechanism 73 is an air cylinder.

The movable base 30 can be arranged on the lower mold base 10 longitudinally and movably, and the bridge type mandrel 80 is erected on the movable base 30. connected, the bridge-type mandrel 80 is provided with a plurality of blanking holes 801, and each punching needle 60 of the group of punching needles 60 is located directly above the corresponding lower material hole 801, and the bridge-type mandrel 80 is provided with aggregate Groove 802 and material guide trough 803, material collection chute 802 is positioned at the below of a plurality of feeding holes 801, one end of this material guide trough 803 connects material collection trough 802, and the other end of material guide trough 803 connects vacuum suction device (not shown in the figure As shown), there is a circular arc transition between the collection tank 802 and the material guide tank 803, so that the waste material from the collection tank 802 enters the material guide tank 803 smoothly, and then is sucked away by the vacuum suction device.

Specifically, guide rails 11 are provided on both sides of the lower mold base 10 , and the movable seat 30 moves back and forth along the two guide rails 11 longitudinally. The movable seat 30 includes a base plate 31, a supporting plate 32 and a push spring 33, the supporting plate 32 is arranged on the surface of the base plate 31, the supporting plate 32 supports the workpiece 90 upward, and the pushing spring 33 is arranged on the base plate 31 Between the support plate 32, the push spring 33 impels the support plate 32 to move upward.

As shown in Figures 8 and 9, the bridge-type mandrel 80 includes a main rod body 81, a knife-edge plate 82 and a cover plate 83, and the aforementioned collecting groove 802 and material guide groove 803 are concave on the surface of the main rod body 81. If formed, the above-mentioned blanking hole 801 is arranged on the knife-edge plate 82 , the knife-edge plate 82 covers the material collecting groove 802 , and the cover plate 83 covers the material guide groove 803 . In this embodiment, the bridge-type mandrel 80 has a square cross-section, the workpiece 90 is a square tube, and the workpiece 90 is matched with the bridge-type mandrel 80; and, the main rod body 81 A dovetail groove 804 extending transversely is recessed, and the knife-edge plate 82 is a dovetail block. The knife-edge plate 82 is embedded in the dovetail groove 804 and positioned longitudinally, and the knife-edge plate 82 is laterally positioned by a plurality of pins 84. Down through the knife-edge plate 82 and inserted into the main rod body 81 ; the cover plate 83 extends longitudinally, and the cover plate 83 is positioned laterally through another dovetail groove 805 . In addition, in this embodiment, there are four bridge-type mandrels 80 , and the four bridge-type mandrels 80 are arranged side by side in a horizontal direction, and corresponding to each bridge-type mandrel 80 is provided with a set of punching pins 60 , corresponding to each The group punching pins 60 are all provided with a plurality of numerically controlled needle avoidance mechanisms 70, so that four workpieces 90 can be punched at the same time.

As shown in Figures 4 and 5, the air-cut clamping mechanism 40 is arranged on the movable seat 30 and moves back and forth longitudinally with the movable seat 30. The air-cut clamping mechanism 40 includes a clamping member 41, a clamping spring 42, and a pressing member 43. And an inflatable device (not shown in the figure), the clamping part 41 can be arranged on the movable seat 30 in a laterally movable manner, and the clamping spring 42 promotes the clamping part 41 to move to one side to clamp and fix the workpiece 90 , the pressing member 43 urges the clamping member 41 to move to the other side to loosen the workpiece 90 , and the inflatable device urges the pressing member 43 to move back and forth. In this embodiment, the pressing member 43 can be arranged to move up and down, and the inflator urges the pressing member 43 to move up and down. One side moves laterally to loosen the workpiece 90. When the inflator is in the gas-off state, the pressing member 43 moves downward. At this time, the clamping spring 42 urges the clamping member 41 to move laterally to the other side to move the workpiece 90. Hold it in place.

The feeding mechanism 50 is arranged on the lower mold base 10 , the feeding mechanism 50 promotes the movable seat 30 to move back and forth longitudinally, and the workpiece 90 moves back and forth longitudinally with the movable seat 30 relative to the bridge-type mandrel 80 . In this embodiment, the feeding mechanism 50 is a servo feeding mechanism, the servo feeding mechanism includes a screw 51 and a servo motor 52, the screw 51 is rotatably installed on the lower mold base 10, the movable seat 30 and the screw 51 screw connection, the servo motor 52 is fixed on the lower mold base 10, and the output shaft of the servo motor 52 is connected with one end of the screw mandrel 51 to drive the screw mandrel 51 to rotate.

The working process of present embodiment is described in detail as follows:

Firstly, the workpiece 90 to be punched is placed outside the bridge-type mandrel 80, and then the inflator is inflated to make the pressing member 43 move upward, so that the holding member 41 is urged to move laterally to one side by the pressing member 43 , then, put the bridge-type mandrel 80 on the movable seat 30, and make the two ends of the bridge-type mandrel 80 connect with the lower mold base 10 and the upper mold base 20 respectively, and then, make the inflatable device cut off the gas, and the pressing part 43 moves downward, and now the clamping spring 42 impels the clamping member 41 to move laterally to the other side to clamp and fix the workpiece 90; As the movable seat 30 moves back and forth longitudinally relative to the bridge-type mandrel 80, when the workpiece 90 moves to a position, the corresponding numerical control needle avoidance mechanism 70 controls the corresponding punch 60 to protrude, and at the same time, the upper die seat 20 moves downward, Make the protruding punching needle 60 move downwards to carry out the punching operation to the workpiece 90, the protruding punching needle 60 moves downwards and passes through the workpiece 90 and reaches the blanking hole 801 on the knife-edge plate 82, and the waste produced by stamping falls into the collector. In the material chute 802, then, the waste material is output from the material guide chute 803 under the effect of the vacuum suction device and is sucked away; When the workpiece 90 longitudinally moves in place, the punching operation can be completed, and then, the feeding mechanism 50 impels the movable seat 30 to vertically Move and reset, and then, the air-break clamping mechanism 40 releases the workpiece 90, and takes out the workpiece 90 together with the bridge-type mandrel 80. Finally, the workpiece 90 is removed from the bridge-type mandrel 80. At this time, the workpiece 90 is formed with A plurality of irregularly arranged through holes 91 . Then, the above-mentioned actions are repeated, and the punching operation can be performed on the next group of workpieces 90 .

The key point of the design of the present invention is: by using the numerical control needle avoidance mechanism to control the extension or retraction of the corresponding punching pins, the relationship between punching and non-punching of the punching pins in the mold is well handled, and various arrangements can be formed on the workpiece The through hole of the through hole; the workpiece is clamped by the air cut-off clamping mechanism, so that there is no need to maintain ventilation during the punching process, which ensures the safety of the operation and brings convenience to the punching operation; The suction device enables the waste to be quickly and promptly cleaned up during the operation, effectively ensuring the quality and safety of punching.

The above descriptions are only preferred embodiments of the present invention, and do not limit the technical scope of the present invention in any way, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are still valid. It belongs to the scope of the technical solutions of the present invention.

Claims (10)

1. a kind of bridge type numerical control keep away pin die clamping servo feeding stamping system, it is characterised in that：Include die shoe, upper mould Seat, sliding seat, die clamping device and feed mechanism；

The upper bolster can be arranged at the surface of die shoe up and downly, and least one set red needle is provided with the upper bolster, and It is provided with upper bolster multiple for controlling the numerical control Bi Zhen mechanisms that corresponding red needle is stretched out or retracted；

The sliding seat longitudinally actively can be arranged on die shoe back and forth, and the sliding seat restocking is provided with bridge-type plug, the bridge-type core The two ends of rod are connected with die shoe and upper bolster respectively, and multiple blanking holes, each punching of this group of red needle are provided with bridge-type plug Pin is located at the surface of the blanking hole of correspondence respectively, and material collecting tank and deflector chute are provided with bridge-type plug, and material collecting tank is located at many Device is inhaled in the lower section of individual blanking hole, one end connection material collecting tank of the deflector chute, the other end connection vacuum of deflector chute；

The clamping device of dying is arranged in sliding seat with the activity back and forth of sliding seat longitudinal direction, and clamping device of dying includes clamping Part, clamp springs, press part and aerating device, the holder laterally actively can be arranged in sliding seat back and forth, the clamping Spring promotes holder to fix piece-holder to a side shifting, and the press part promotes holder to incite somebody to action to another side shifting Workpiece unclamps, and the aerating device promotes press part movable back and forth；

The feed mechanism is arranged on die shoe, and the feed mechanism innervates, and seat longitudinal direction is movable back and forth, and workpiece is with sliding seat phase To the activity back and forth of bridge-type plug longitudinal direction.

2. bridge type numerical control according to claim 1 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described The both sides of die shoe are provided with guide rail, and the sliding seat is along the activity back and forth of two guide rails longitudinal direction.

3. bridge type numerical control according to claim 1 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described Sliding seat includes substrate, supporting plate and goring push spring, and the supporting plate is arranged on the surface of substrate, and the supporting plate holds workpiece upwards, The goring push spring is arranged between substrate and supporting plate, and goring push spring promotes supporting plate movable upwards.

4. bridge type numerical control according to claim 1 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described Bridge-type plug is four, and four bridge-type plugs interval setting laterally side by side, each bridge-type plug of correspondence are provided with one group of red needle, Each group of red needle of correspondence is provided with multiple numerical control Bi Zhen mechanisms.

5. the bridge type numerical control according to claim 1 or 4 keep away pin die clamping servo feeding stamping system, it is characterised in that： Numerical control Bi Zhen mechanisms include vertical briquetting, cross sliding clock and drive mechanism, and vertical briquetting can be arranged at correspondence up and downly Red needle surface, vertical briquetting drives corresponding red needle movable downwards, cross sliding clock can level be actively arranged at back and forth The top of vertical briquetting, the vertical briquetting of cross sliding clock drive are movable downwards, and the drive mechanism is connected with cross sliding clock and drives water Smooth block level is movable back and forth.

6. bridge type numerical control according to claim 5 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described Drive mechanism is cylinder.

7. bridge type numerical control according to claim 1 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described Bridge-type plug includes main barred body, edge of a knife plate and cover plate, and aforementioned material collecting tank and deflector chute are in the recessed shape in surface of main barred body Into aforementioned blanking hole is arranged on edge of a knife plate, and the edge of a knife plate covers material collecting tank, and the cover plate covers deflector chute.

8. bridge type numerical control according to claim 7 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described Main barred body is concavely provided with the dovetail groove for extending laterally, the edge of a knife plate be in dovetails, longitudinal register during edge of a knife plate is embedded in dovetail groove, And edge of a knife plate is by multiple pin located laterals, the plurality of pin is inserted on main barred body through edge of a knife plate from top to bottom.

9. bridge type numerical control according to claim 7 keep away pin die clamping servo feeding stamping system, it is characterised in that：It is described The cross section of bridge-type plug is square.

10. bridge type numerical control according to claim 1 keep away pin die clamping servo feeding stamping system, it is characterised in that：Institute Feed mechanism is stated for servo feeding mechanism, the servo feeding mechanism includes screw mandrel and servomotor, and screw mandrel is rotatably mounted On die shoe, sliding seat is screwed together with screw mandrel, and the servomotor is fixed on die shoe, the output shaft and silk of servomotor One end of bar couples and drives screw mandrel to rotate.