CN112338019A - Accurate and efficient needle tube bending equipment and method - Google Patents
Accurate and efficient needle tube bending equipment and method Download PDFInfo
- Publication number
- CN112338019A CN112338019A CN202011064100.2A CN202011064100A CN112338019A CN 112338019 A CN112338019 A CN 112338019A CN 202011064100 A CN202011064100 A CN 202011064100A CN 112338019 A CN112338019 A CN 112338019A
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- needle tube
- stamping
- plate body
- bending
- bearing
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- 238000005452 bending Methods 0.000 title claims abstract description 118
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004080 punching Methods 0.000 claims description 21
- 239000000126 substance Substances 0.000 claims description 13
- 238000003825 pressing Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/04—Bending tubes using mandrels or the like the mandrel being rigid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/08—Bending tubes using mandrels or the like in press brakes or between rams and anvils or abutments; Pliers with forming dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/16—Auxiliary equipment, e.g. machines for filling tubes with sand
Abstract
The invention provides accurate and efficient needle tube bending equipment and a bending method thereof.A bearing part and a bending operation part are supported by a base part, and a needle tube is clamped and fixed by the bearing part so as to ensure that the position of the needle tube can be kept unchanged in the bending process.
Description
Technical Field
The invention relates to the technical field of medical instrument preparation, in particular to accurate and efficient needle tube bending equipment and a bending method.
Background
At present, the needle tube needs to be bent in the process of producing an eye surface instrument, and the needle tube is bent manually by using a pliers in the prior art, so that the needle tube after being bent is easily inclined and the surface of the needle tube has pit defects, the efficiency of bending the needle tube is seriously reduced, and a large amount of waste products are easily produced. Therefore, there is a need in the art for a system and method for indentation-free and automated needle tube bending.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides accurate and efficient needle tube bending equipment and a bending method, the needle tube bending equipment is designed to comprise a base part, a bearing part and a bending operation part, and the base part is used for providing an integral supporting support of the needle tube bending equipment; the bearing part is arranged on the base part and comprises a clamping structure, and the clamping structure is used for clamping and fixing the needle tube; the bending operation part comprises a stamping bender, the stamping bender is arranged above the bearing part and is connected with an external stamping driver, and the stamping bender applies a driving force to the stamping bender through the external stamping driver so that the stamping bender applies a stamping acting force to the needle tube clamped and fixed by the clamping structure, and the needle tube is bent and deformed; the needle tube bending equipment comprises a base part, a bearing part and a bending operation part, wherein the bearing part and the bending operation part are supported by the base part, the bearing part is used for clamping and fixing the needle tube so as to ensure that the needle tube can keep the position unchanged in the bending process, and the bending operation part is used for stamping and bending the needle tube so as to enable the bending angle of the needle tube to meet the requirement, and the needle tube bending equipment is convenient to use and simple in operation.
The invention provides accurate and efficient needle tube bending equipment which comprises a base part, a bearing part and a bending operation part, wherein the base part is provided with a base seat; wherein the content of the first and second substances,
the base part is used for providing an integral supporting support for the needle tube bending equipment;
the bearing part is arranged on the base part and comprises a clamping structure, and the clamping structure is used for clamping and fixing the needle tube;
the bending operation part comprises a stamping bending device, the stamping bending device is arranged above the bearing part and is connected with an external stamping driver, and the stamping bending device applies driving force to the stamping bending device through the external stamping driver, so that the stamping bending device applies stamping acting force to the needle tube clamped and fixed by the clamping structure, and the needle tube is bent and deformed.
Further, the base part comprises a tool bottom plate and a plurality of supporting blocks; wherein the content of the first and second substances,
the tool bottom plate is used for providing an integral supporting bottom surface of the needle tube bending equipment;
the supporting blocks are uniformly arranged on the upper surface of the tool bottom plate, each supporting block is in an L-shaped structure and comprises a horizontal block and a vertical block, the horizontal block and the vertical block are connected with each other to form the L-shaped structure, and the horizontal block is fixed on the upper surface of the tool bottom plate so that the supporting blocks are positioned and arranged at corresponding positions of the upper surface;
further, the tool bottom plate comprises a first plate body, a second plate body and a third plate body; wherein the content of the first and second substances,
the second plate body and the third plate body are respectively arranged on two opposite edge sides of the first plate body, so that the first plate body, the second plate body and the third plate body form the tool bottom plate;
at least one mounting hole is respectively arranged on the second plate body and the third plate body in a penetrating manner, and the mounting hole is used for being matched with an external mounting piece, so that the tool bottom plate is integrally mounted and fixed on an external working table;
further, the first plate body, the second plate body and the third plate body are integrally formed;
alternatively, the first and second electrodes may be,
the mounting hole is a threaded hole, the mounting piece is a threaded clamping piece, and the threaded clamping piece is matched with the threaded hole, so that the tool bottom plate is integrally mounted and fixed on the corresponding workbench surface;
alternatively, the first and second electrodes may be,
the lower surfaces of the first plate body, the second plate body and the third plate body are provided with anti-skid texture structures or anti-skid rubber gaskets;
further, the bearing part comprises a first bearing piece and a second bearing piece;
the clamping structure comprises a first stop block and a second stop block;
the first bearing piece and the second bearing piece are respectively arranged on the two opposite supporting blocks, one end of the first bearing piece is abutted against one end of the second bearing piece, the top end of the one end of the first bearing piece is arc-shaped, and the top end of the one end of the second bearing piece is arc-shaped, so that after one end of the first bearing piece is abutted against one end of the second bearing piece, a sunken area is formed at the position where one end of the first bearing piece is abutted against one end of the second bearing piece;
further, the first stop block is arranged on the first bearing piece, and a plurality of grooves are formed in the first stop block;
the second stop block is arranged on the second bearing piece, a plurality of slotted holes are formed in the second stop block, the grooves and the slotted holes are in one-to-one correspondence, and the arrangement positions of the grooves on the first stop block correspond to the arrangement positions of the slotted holes on the second stop block;
the second stopper is movably arranged on the second bearing piece and can reciprocate along a direction vertical to the length direction of the second bearing piece;
further, a sliding groove is formed in the upper surface of the second bearing piece in the direction perpendicular to the length direction of the second bearing piece, and the lower surface of the second stop block is matched with the sliding groove, so that the second stop block can move back and forth along the sliding groove, and the slotted hole in the second stop block is driven to move back and forth, and is aligned with the groove in the first stop block;
further, the stamping bender comprises a die handle and a stamping head; wherein the content of the first and second substances,
the die shank is engaged with the punching head, and the die shank is arranged above the punching head;
the stamping head comprises a connecting part and a stamping part, the connecting part is combined with the die handle, the stamping part is arranged below the connecting part, and the stamping part is in a round head shape.
Further, the die handle is a cylindrical die handle; the punch driver includes:
a base;
the cylinder equipment is arranged on the base, and a piston rod of the cylinder equipment is perpendicular to the base;
the top of the piston rod of the cylinder equipment is fixedly connected with one end of an external connecting rod horizontally arranged, a round hole is formed in the surface, facing the ground, of the other end of the external connecting rod, the shape and the size of the round hole are matched with those of the top end of the cylindrical die shank, threads are arranged on the inner wall surface of the round hole, threads matched with the threads on the inner wall surface of the round hole are arranged on the outer surface of the top end of the cylindrical die shank, and after the top end of the cylindrical die shank is inserted into the round hole, the top end of the cylindrical die shank is stably connected with the threads.
A method for bending a needle tube by using any one of the needle tube bending devices comprises the following steps:
step S1, obtaining the length difference between the actual length value and the preset target length value of the needle tube, and cutting the needle tube according to the length difference, so that the needle tube has the preset target length value;
step S2, a steel wire is arranged in the cut needle tube in a penetrating way, and two ends of the steel wire are fixed with two ends of the needle tube, so that the steel wire is prevented from falling off from the needle tube;
step S3, placing the needle tube on the bearing surface of the bearing part, and moving the clamping structure on the bearing surface, so that the clamping structure clamps and fixes the needle tube and the punch bender are aligned with each other;
and step S4, adjusting the magnitude and/or direction of the pressing force applied to the needle tube by the pressing bender via the pressing driver, so that the pressing bender presses the needle tube to bend and deform the needle tube.
Compared with the prior art, the accurate and efficient needle tube bending equipment comprises a base part, a bearing part and a bending operation part, wherein the base part is used for providing an integral supporting support for the needle tube bending equipment; the bearing part is arranged on the base part and comprises a clamping structure, and the clamping structure is used for clamping and fixing the needle tube; the bending operation part comprises a stamping bender, the stamping bender is arranged above the bearing part and is connected with an external stamping driver, and the stamping bender applies a driving force to the stamping bender through the external stamping driver so that the stamping bender applies a stamping acting force to the needle tube clamped and fixed by the clamping structure, and the needle tube is bent and deformed; the needle tube bending equipment comprises a base part, a bearing part and a bending operation part, wherein the bearing part and the bending operation part are supported by the base part, the bearing part is used for clamping and fixing the needle tube so as to ensure that the needle tube can keep the position unchanged in the bending process, the bending operation part is used for stamping and bending the needle tube, the needle tube can be bent and molded, the bending angle of the needle tube meets the requirement, the needle tube bending equipment is convenient to use, and the needle tube bending equipment is simple to operate.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic front view of a needle tube bending apparatus according to the present invention.
Fig. 2 is a schematic top view of the needle tube bending apparatus provided in the present invention.
Fig. 3 is a schematic bottom view of the needle tube bending apparatus provided in the present invention.
Fig. 4 is a schematic diagram of a punch driver in the needle cannula bending apparatus provided by the present invention.
FIG. 5 is a flow chart of a needle cannula bending method provided by the present invention.
Reference numerals: 1. a support block; 2. a first plate body; 3. a second plate body; 4. a third plate body; 5. a first bearing member; 6. a second bearing member; 7. a first stopper; 8. a second stopper; 9. a die shank; 10. punching a head; 11. a tooling bottom plate; 12. a spring; 13. a groove; 14. a slot; 15. a sliding groove; 16. a recessed region.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, there are respectively a front view schematic diagram, a top view schematic diagram and a bottom view schematic diagram of the precise and efficient needle tube bending apparatus provided in the embodiment of the present invention. The needle tube bending equipment comprises a base part, a bearing part and a bending operation part; wherein the content of the first and second substances,
the base part is used for providing an integral supporting seat of the needle tube bending equipment;
the bearing part is arranged on the base part and comprises a clamping structure, and the clamping structure is used for clamping and fixing the needle tube;
the bending operation part comprises a stamping bender, the stamping bender is arranged above the bearing part and is connected with an external stamping driver, and the stamping bender applies a driving force to the stamping bender through the external stamping driver, so that the stamping bender applies a stamping acting force to the needle tube clamped and fixed by the clamping structure, and the needle tube is bent and deformed.
The beneficial effects of the above technical scheme are: the bearing part and the bending operation part are supported through the base part, the bearing part is used for clamping and fixing the needle tube, meanwhile, the bearing part can be used for adjusting the placing pose of the needle tube, so that the needle tube can be kept unchanged in the bending process, in addition, the bending operation part is used for punching and bending the needle tube, the needle tube can be bent and molded, the bending angle of the needle tube meets the requirement, the use is convenient, and the operation is simple.
The external punching driver can be configured by a user, and only the bending operation part can be controlled to reciprocate up and down above the bearing part.
Preferably, the base part comprises a tool bottom plate 11 and a plurality of supporting blocks 1; wherein the content of the first and second substances,
the tool bottom plate 11 is used for providing an integral supporting bottom surface of the needle tube bending equipment;
the supporting blocks 1 are uniformly arranged on the upper surface of the tooling bottom plate 11, each supporting block 1 is in an L-shaped structure, each supporting block 1 comprises a horizontal block and a vertical block, the horizontal block and the vertical block are connected with each other to form the L-shaped structure, and the horizontal block is fixed on the upper surface of the tooling bottom plate 11 so that the supporting blocks 1 are positioned and arranged at corresponding positions of the upper surface.
The beneficial effects of the above technical scheme are: through establishing into frock bottom plate and a plurality of supporting shoe with base portion, its dull and stereotyped shape that utilizes the frock bottom plate provides firm support to the needle tubing equipment of bending, and it can avoid the needle tubing equipment of bending to take place the condition that the upset topples, and evenly sets up the supporting shoe at the upper surface of frock bottom plate and can carry out the support of separating to the different structure portion of this bearing to establish into the supporting shoe and have L type structure, can improve the support steadiness of supporting shoe.
Preferably, the tooling bottom plate 11 comprises a first plate body 2, a second plate body 3 and a third plate body 4; wherein the content of the first and second substances,
the second plate 3 and the third plate 4 are respectively disposed at two opposite edge sides of the first plate 2, so that the first plate 2, the second plate 3 and the third plate 4 form the tooling bottom plate 11;
at least one mounting hole is respectively arranged on the second plate body 3 and the third plate body 4 in a penetrating mode, and the mounting holes are used for being matched with an external mounting part, so that the tool bottom plate 11 is integrally mounted and fixed on an external working table surface, and the use convenience and the use stability of the needle tube bending equipment are improved.
The beneficial effects of the above technical scheme are: establish into this frock bottom plate including first plate body, second plate body and third plate body to support this portion of bearing through first plate body, and through set up the mounting hole at second plate body and third plate body and cooperate corresponding installed part can be convenient for install this needle tubing equipment of bending firmly on different table surfaces, and be convenient for adjust the needle tubing equipment of bending mounted position at any time and fast.
Preferably, the first plate body 2, the second plate body 3 and the third plate body 4 are integrally formed.
The beneficial effects of the above technical scheme are: with this first plate body, this second plate body and this third plate body integrated into one piece can improve the mechanical structure steadiness of this frock bottom plate.
Preferably, the mounting hole is a threaded hole, and the mounting member is a threaded fastener, which is engaged with the threaded hole, so as to integrally mount and fix the tool bottom plate 11 on the corresponding work table.
The beneficial effects of the above technical scheme are: establish to screw hole and this installed part through establishing this mounting hole and establish to screw thread fastener, can improve fixed mounting convenience and steadiness to the frock bottom plate.
Preferably, the lower surfaces of the first plate body 2, the second plate body 3 and the third plate body are provided with anti-skid textures or anti-skid rubber gaskets.
The beneficial effects of the above technical scheme are: through setting up anti-skidding texture structure or anti-skidding rubber gasket, can improve the antiskid nature of frock bottom plate.
Preferably, the carrier comprises a first carrier 5 and a second carrier 6;
the clamping structure comprises a first stop 7 and a second stop 8;
the first bearing member 5 and the second bearing member 6 are respectively disposed on the two opposite support blocks 1, one end of the first bearing member 5 abuts against one end of the second bearing member 6, the top end of the one end of the first bearing member 5 is arc-shaped, and the top end of the one end of the second bearing member 6 is arc-shaped, so that a recessed area 16 is formed at the position where the one end of the first bearing member 5 abuts against one end of the second bearing member 6 when the one end of the first bearing member 5 abuts against the one end of the second bearing member 6;
the first stop 7 is arranged on the first bearing piece 5, and a plurality of grooves 13 are arranged on the first stop 7;
the second block 8 is disposed on the second carrier 6, a plurality of slots 14 are disposed on the second block 8, the slots 13 and the slots 14 have a one-to-one correspondence, and the positions of the slots 13 on the first block 7 correspond to the positions of the slots 14 on the second block 8.
In the process of operating the needle tube bending equipment, a needle tube is placed in one group of the groove and the groove hole, one end of the needle tube is abutted against the bottom of the groove, the other end of the needle tube is placed in the groove hole, so that the needle tube is clamped and fixed, at the moment, the needle tube is positioned above the depressed area, and meanwhile, the stamping bender is positioned above the needle tube and exerts a downward stamping effect on the needle tube, so that the needle tube is bent towards the inner side of the depressed area, and the needle tube bending operation is realized.
Preferably, the second stopper 8 is movably disposed on the second carrier 6, and the second stopper 8 is capable of reciprocating in a direction perpendicular to the length direction of the second carrier 6.
Preferably, a sliding groove 15 is formed in the upper surface of the second supporting member 6 along a direction perpendicular to the length direction of the second supporting member 6, and the lower surface of the second stopping block 8 is engaged with the sliding groove 15, so that the second stopping block 8 can reciprocate along the sliding groove 15, and the slot hole 14 in the second stopping block 8 is driven to reciprocate so as to be aligned with the groove 13 in the first stopping block 7.
Preferably, a spring 12 is connected between the lower surface of the second carrier 6 and the upper surface of the tooling bottom plate 11, and the spring 12 is used for providing a buffering force during the movement of the second carrier 6 relative to the tooling bottom plate 11.
The beneficial effects of the above technical scheme are: the second bearing piece and the tooling bottom plate are connected through the spring, so that the situation that the whole needle tube bending equipment is subjected to impact deformation in the needle tube bending and stamping process can be avoided.
Preferably, the punch bender comprises a die shank 9 and a punch head 10; wherein the content of the first and second substances,
the die shank 9 is engaged with the punch 10, the die shank 9 is disposed above the punch 10;
the punch head 10 includes a connecting portion that engages with the die shank 9 and a punch portion that is provided below the connecting portion and has a round head shape. The punching press portion is round-head-shaped, so that the bending punching press force applied to the surface of the needle tube in the bending process is uniform, and punching pits and indentations on the surface of the needle tube are effectively avoided.
The beneficial effects of the above technical scheme are: the stamping bender is arranged into a die handle and a stamping head which are connected and arranged from top to bottom, so that the stamping bender can be guaranteed to be evenly stressed under the driving of a stamping driver, the phenomenon that the needle tube moves axially or radially in the process of stamping the needle tube and the stamping bender is convenient to disassemble and assemble is avoided, and the stamping bending reliability of the needle tube by the stamping bender is improved.
Preferably, the die shank 9 is a cylindrical die shank; as shown in fig. 4, the external punch driver may be implemented as follows:
a base 40;
a cylinder device 41 arranged on the base 40, wherein a piston rod 42 of the cylinder device 41 is perpendicular to the base 40;
the top of the piston rod 42 of the cylinder device 41 is fixedly connected with one end of an external connecting rod 43 which is horizontally arranged, a round hole is arranged on one surface of the other end of the external connecting rod 43 facing the ground, the shape and the size of the round hole are matched with those of the top end of the cylindrical die shank, threads are arranged on the inner wall surface of the round hole, threads matched with the threads on the inner wall surface of the round hole are arranged on the outer surface of the top end of the cylindrical die shank, and the top end of the cylindrical die shank is inserted into the round hole and then is stably connected with the threads through the matching.
A user can control the stamping bender to move up and down by controlling the piston rod of the air cylinder device to stretch up and down, so that the needle tube bending operation is completed.
In one embodiment, the punching driver may further include a punching force applying member, a punching force magnitude adjusting member, and a punching force direction adjusting member; wherein the content of the first and second substances,
the stamping force applying part is mechanically connected with the die handle 9, and is used for applying stamping force to the die handle 9, so that the die handle 9 drives the stamping head 10 to stamp the needle tube, and the needle tube is bent and deformed;
the stamping force adjusting part is connected with the stamping force applying part and is used for adjusting the stamping force applied by the stamping force applying part to the die shank 9;
the punching force direction adjusting member is connected to the punching force applying member, and is used for adjusting the direction in which the punching force applying member applies the punching force to the die shank 9.
The beneficial effects of the above technical scheme are: through adjusting the size and/or the direction of the stamping acting force applied to the die handle by the stamping force applying piece, the bending angle of the needle tube can be conveniently adjusted according to actual requirements, and therefore the bending flexibility of the needle tube is improved.
The method for bending the needle tube by using the needle tube bending equipment provided by the embodiment of the invention, as shown in fig. 5, comprises the following steps:
step S1, obtaining the length difference between the actual length value and the preset target length value of the needle tube, and cutting the needle tube according to the length difference, so that the needle tube has the preset target length value;
step S2, a steel wire is arranged in the cut needle tube in a penetrating way, and two ends of the steel wire are fixed with two ends of the needle tube, so that the steel wire is prevented from falling off from the needle tube;
step S3, placing the needle tube on the bearing surface of the bearing part, and moving the clamping structure on the bearing surface, so that the clamping structure clamps and fixes the needle tube and the punch bender are aligned with each other;
and step S4, adjusting the magnitude and/or direction of the pressing force applied to the needle tube by the pressing bender via the pressing driver, so that the pressing bender presses the needle tube to bend and deform the needle tube.
In the actual operation of bending the needle tube, firstly cutting the length of the needle tube to trim the needle tube into a size with a target length value, then installing a 0.35mm steel wire in the hollow interior of the needle tube in a penetrating way, then placing the needle tube on a bearing surface of a bearing part, wherein a tooling groove is arranged on the bearing surface in advance, the cross section shape and the size of the tooling groove are matched with those of the needle tube, so that the needle tube can be stably placed on the bearing surface, the needle tube is prevented from rolling in the stamping and bending process, meanwhile, a clamping structure on the bearing surface also clamps and fixes the needle tube to enable the needle tube to be accurately aligned with a stamping and bending device, then a transmission rod is pushed to enable a stamping driver to drive the stamping bender to perform stamping and bending actions on the needle tube so as to bend the needle tube, and finally, the corresponding brake shaft is rotated by the wrench, so that the stamping driver drives the stamping bender to recover to be lifted to the highest position, thereby facilitating taking of the bent needle tube and stamping and bending another needle tube next time.
The beneficial effects of the above technical scheme are: through carrying out length cutting to the needle tubing, can avoid the needle tubing like this because length overlength and can't carry out the centre gripping fixed, pass this needle tubing inside with the steel wire in addition, can improve the mechanical strength of this needle tubing to avoid carrying out punching press to the needle tubing and bending this needle tubing of in-process and avoid producing impact pit and indentation, with this accuracy nature and the punching press quality of bending to the needle tubing punching press of improvement.
As can be seen from the above description of the embodiments, the needle tube bending apparatus is configured to include a base portion for providing an integral support base of the needle tube bending apparatus, a carrying portion, and a bending operation portion; the bearing part is arranged on the base part and comprises a clamping structure, and the clamping structure is used for clamping and fixing the needle tube; the bending operation part comprises a stamping bender, the stamping bender is arranged above the bearing part, the stamping driver is connected with the stamping bender, and the stamping driver is used for driving the stamping bender to apply stamping acting force to the needle tube clamped and fixed by the clamping structure, so that the needle tube is bent and deformed; the needle tube bending equipment comprises a base part, a bearing part and a bending operation part, wherein the bearing part and the bending operation part are supported by the base part, and the bearing part is used for clamping and fixing the needle tube so as to ensure that the needle tube can keep the position unchanged in the bending process.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The accurate and efficient needle tube bending equipment is characterized by comprising a base part, a bearing part and a bending operation part; wherein the content of the first and second substances,
the base part is used for providing an integral supporting support for the needle tube bending equipment;
the bearing part is arranged on the base part and comprises a clamping structure, and the clamping structure is used for clamping and fixing the needle tube;
the bending operation part comprises a stamping bending device, the stamping bending device is arranged above the bearing part and is connected with an external stamping driver, and the stamping bending device applies driving force to the stamping bending device through the external stamping driver, so that the stamping bending device applies stamping acting force to the needle tube clamped and fixed by the clamping structure, and the needle tube is bent and deformed.
2. The needle cannula bending apparatus according to claim 1, wherein:
the base part comprises a tool bottom plate and a plurality of supporting blocks; wherein the content of the first and second substances,
the tool bottom plate is used for providing an integral supporting bottom surface of the needle tube bending equipment;
the supporting blocks are uniformly arranged on the upper surface of the tool bottom plate, each supporting block is of an L-shaped structure and comprises a horizontal block and a vertical block, the horizontal block and the vertical block are connected with each other to form the L-shaped structure, and the horizontal block is fixed on the upper surface of the tool bottom plate so that the supporting blocks are positioned and arranged at corresponding positions of the upper surface.
3. The needle cannula bending apparatus according to claim 2, wherein:
the tool bottom plate comprises a first plate body, a second plate body and a third plate body; wherein the content of the first and second substances,
the second plate body and the third plate body are respectively arranged on two opposite edge sides of the first plate body, so that the first plate body, the second plate body and the third plate body form the tool bottom plate;
at least one mounting hole is formed in the second plate body and the third plate body in a penetrating mode respectively, and the mounting holes are used for being matched with an external mounting piece, so that the tool bottom plate is integrally mounted and fixed on an external working table.
4. The needle cannula bending apparatus according to claim 3, wherein:
the first plate body, the second plate body and the third plate body are integrally formed;
alternatively, the first and second electrodes may be,
the mounting hole is a threaded hole, the mounting piece is a threaded clamping piece, and the threaded clamping piece is matched with the threaded hole, so that the tool bottom plate is integrally mounted and fixed on the corresponding workbench surface; alternatively, the first and second electrodes may be,
the lower surfaces of the first plate body, the second plate body and the third plate body are provided with anti-skidding texture structures or anti-skidding rubber gaskets.
5. The needle cannula bending apparatus according to claim 2, wherein:
the bearing part comprises a first bearing piece and a second bearing piece;
the clamping structure comprises a first stop block and a second stop block;
the first bearing piece and the second bearing piece are respectively arranged on the two opposite supporting blocks, one end of the first bearing piece is abutted to one end of the second bearing piece, the top end of the one end of the first bearing piece is arc-shaped, and the top end of the one end of the second bearing piece is arc-shaped, so that after the one end of the first bearing piece is abutted to one end of the second bearing piece, a sunken area is formed at the position where the one end of the first bearing piece is abutted to the one end of the second bearing piece.
6. The needle cannula bending apparatus according to claim 5, wherein:
the first stop block is arranged on the first bearing piece, and a plurality of grooves are formed in the first stop block;
the second stop block is arranged on the second bearing piece, a plurality of slotted holes are formed in the second stop block, the grooves and the slotted holes are in one-to-one correspondence, and the arrangement positions of the grooves on the first stop block correspond to the arrangement positions of the slotted holes on the second stop block;
the second stopper is movably arranged on the second bearing piece, and can move in a reciprocating manner along a direction perpendicular to the length direction of the second bearing piece.
7. The needle cannula bending apparatus of claim 6, wherein:
and a sliding groove is formed in the upper surface of the second bearing piece in the direction perpendicular to the length direction of the second bearing piece, and the lower surface of the second stop block is matched with the sliding groove, so that the second stop block can move back and forth along the sliding groove, and the slotted hole in the second stop block is driven to move back and forth, and is aligned with the groove in the first stop block.
8. The needle cannula bending apparatus according to claim 1, wherein:
the stamping bender comprises a die handle and a stamping head; wherein the content of the first and second substances,
the die shank is engaged with the punching head, and the die shank is arranged above the punching head;
the stamping head comprises a connecting part and a stamping part, the connecting part is combined with the die handle, the stamping part is arranged below the connecting part, and the stamping part is in a round head shape.
9. The needle cannula bending apparatus of claim 8, wherein:
the die handle is a cylindrical die handle; the punch driver includes:
a base;
the cylinder equipment is arranged on the base, and a piston rod of the cylinder equipment is perpendicular to the base;
the top of the piston rod of the cylinder equipment is fixedly connected with one end of an external connecting rod horizontally arranged, a round hole is formed in the surface, facing the ground, of the other end of the external connecting rod, the shape and the size of the round hole are matched with those of the top end of the cylindrical die shank, threads are arranged on the inner wall surface of the round hole, threads matched with the threads on the inner wall surface of the round hole are arranged on the outer surface of the top end of the cylindrical die shank, and after the top end of the cylindrical die shank is inserted into the round hole, the top end of the cylindrical die shank is stably connected with the threads.
10. A method of bending a needle cannula using the needle cannula bending apparatus of any of claims 1 to 9, comprising the steps of:
step S1, obtaining the length difference between the actual length value and the preset target length value of the needle tube, and cutting the needle tube according to the length difference, so that the needle tube has the preset target length value;
step S2, a steel wire is arranged in the cut needle tube in a penetrating way, and two ends of the steel wire are fixed with two ends of the needle tube, so that the steel wire is prevented from falling off from the needle tube;
step S3, placing the needle tube on the bearing surface of the bearing part, and moving the clamping structure on the bearing surface, so that the clamping structure clamps and fixes the needle tube and the punch bender are aligned with each other;
and step S4, adjusting the magnitude and/or direction of the pressing force applied to the needle tube by the pressing bender via the pressing driver, so that the pressing bender presses the needle tube to bend and deform the needle tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011064100.2A CN112338019A (en) | 2020-09-30 | 2020-09-30 | Accurate and efficient needle tube bending equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011064100.2A CN112338019A (en) | 2020-09-30 | 2020-09-30 | Accurate and efficient needle tube bending equipment and method |
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| CN202011064100.2A Pending CN112338019A (en) | 2020-09-30 | 2020-09-30 | Accurate and efficient needle tube bending equipment and method |
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