CN114082816B - Automatic spiral winding device - Google Patents
Automatic spiral winding device Download PDFInfo
- Publication number
- CN114082816B CN114082816B CN202111385629.9A CN202111385629A CN114082816B CN 114082816 B CN114082816 B CN 114082816B CN 202111385629 A CN202111385629 A CN 202111385629A CN 114082816 B CN114082816 B CN 114082816B
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- mandrel
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- assembly
- molding
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- 238000004804 winding Methods 0.000 title claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 238000000465 moulding Methods 0.000 claims abstract description 61
- 239000011265 semifinished product Substances 0.000 claims abstract description 38
- 230000000712 assembly Effects 0.000 claims abstract description 37
- 238000000429 assembly Methods 0.000 claims abstract description 37
- 238000007599 discharging Methods 0.000 claims abstract description 15
- 238000003780 insertion Methods 0.000 claims abstract description 13
- 230000037431 insertion Effects 0.000 claims abstract description 13
- 230000001360 synchronised effect Effects 0.000 claims description 42
- 230000005540 biological transmission Effects 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 31
- 238000005096 rolling process Methods 0.000 claims description 8
- 230000020347 spindle assembly Effects 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/105—Manipulators, i.e. mechanical arms carrying a gripper element having several degrees of freedom
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Wire Processing (AREA)
Abstract
The invention relates to the technical field of aviation breaker accessory preparation devices, and discloses an automatic spiral winding device. The automatic spiral winding device comprises a workbench, and a winding forming mechanism comprises a mandrel driving assembly and two groups of mandrel assemblies; each group of mandrel assemblies comprises a forming mandrel, at least one of the two forming mandrels is provided with a notch with an opening facing the workbench, and when the forming mandrel is in a clamping forming position, the notch forms an insertion space; the mandrel driving assembly is connected with each group of mandrel assemblies and used for driving the mandrel assemblies to switch between a clamping forming position and a standby position; the molding template lifting mechanism comprises a molding template and a template driving assembly, the molding template lifting mechanism is provided with a discharging position and a molding position, and the template driving assembly is used for driving the molding template to switch between the discharging position and the molding position. The automatic spiral winding device can realize spiral winding of the part to be spiral in the bimetallic strip semi-finished product through the winding forming mechanism and the forming template lifting mechanism.
Description
Technical Field
The invention relates to the technical field of aviation breaker accessory preparation devices, in particular to an automatic spiral winding device.
Background
The spiral bimetallic strip is a key component inside the free-tripping type aviation breaker. Before the spiral bimetallic strip is formed by equipment preparation, the bimetallic strip is in a blank form. Specifically, the bi-metallic strip blank includes an intermediate connecting portion and two portions to be spiraled. After being bent by the bending component, the middle connecting part is bent relative to the part to be screwed to form a bimetallic strip semi-finished product.
Accordingly, it is desirable to provide an automatic spiral winding apparatus that can spiral a portion of a bimetal to be spiraled.
Disclosure of Invention
The invention discloses an automatic spiral winding device which is used for realizing the spiral operation of a part to be spiral in a bimetallic strip semi-finished product.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an automatic spiral winding apparatus comprising: a workbench provided with a coiling and shaping mechanism and a shaping template lifting mechanism, wherein,
the roll forming mechanism comprises a mandrel driving assembly and two groups of mandrel assemblies, wherein the two groups of mandrel assemblies are oppositely arranged along a first direction, and each group of mandrel assemblies is movably arranged on the workbench along the first direction; each group of mandrel assemblies comprises a forming mandrel, and at least one of the two forming mandrels is provided with a notch with an opening facing the workbench; the mandrel assembly is provided with a clamping forming position and a standby position, when the mandrel assembly is positioned at the clamping forming position, the notches of the two forming mandrels are matched to form an insertion space, and the insertion space is used for inserting the middle connecting part of the bent bimetallic strip semi-finished product; the mandrel driving assembly is connected with each group of mandrel assemblies and used for driving the mandrel assemblies to switch between a clamping forming position and a standby position;
the molding template lifting mechanism comprises a molding template for bearing and clamping the bent bimetallic strip semi-finished product and a template driving assembly; the molding template lifting mechanism is provided with a discharging position and a molding position, and the template driving assembly is used for driving the molding template to be switched among the discharging position, the molding position and the material taking position; when the molding template lifting mechanism is positioned at a molding station, the molding template is used for abutting the to-be-screwed part of the bimetallic strip semi-finished product with the surface of the molding mandrel and keeping a certain molding pressure.
In the automatic spiral winding device, the two groups of mandrel assemblies arranged on the workbench can be switched between the clamping forming position and the standby position under the driving of the mandrel driving assembly. Specifically, when the mandrel assemblies are in the standby position, forming mandrels of the two groups of mandrel assemblies are at a certain distance along the first direction; when the mandrel assembly is positioned at the clamping and forming position, the notches on the two forming mandrels are matched to form an insertion space for inserting the middle connecting part of the bimetallic strip semi-finished product; when the mandrel driving assembly drives the forming mandrels to rotate, the two forming mandrels keep clamping the middle connecting part and synchronously rotate around the self axis so as to wind the spiral part of the bimetallic strip semi-finished product. The forming template lifting mechanism arranged on the workbench is matched with the rolling forming mechanism to act, specifically, the forming template in the forming template lifting mechanism is used for bearing the bimetallic strip semi-finished product, and the template driving assembly is used for driving the forming template to act. The forming template lifting mechanism specifically comprises a feeding position and a forming position, when the forming template lifting mechanism is positioned at the feeding position, feeding can be performed through an external manipulator or manually, and when the forming template lifting mechanism is positioned at a forming station, the forming template is used for abutting the to-be-screwed part of the bimetallic strip semi-finished product with the surface of the forming mandrel and keeping certain forming pressure so as to roll the to-be-screwed part when the forming mandrel rotates around the axis.
It should be noted that, the automatic spiral winding device provided in the embodiment of the present application may implement spiral winding of the portion to be spiral in the bimetal semi-finished product through the winding forming mechanism and the forming template lifting mechanism provided on the workbench, so as to form a spiral bimetal.
In one embodiment of the present disclosure, two of the spindle assemblies:
the forming mandrel of one mandrel assembly is provided with a notch, and one end of the forming mandrel with the notch, which faces the other forming mandrel, is provided with a guiding taper;
the other forming mandrel of the mandrel assembly is provided with a round hole, the opening of the round hole is positioned on one side of the forming mandrel facing the other forming mandrel, and the aperture size of the round hole is matched with the size of the position with the largest diameter of the guiding taper.
In one embodiment of the disclosure, the mandrel driving assembly includes a transmission unit and a mandrel opening and closing unit mounted on the workbench, and the mandrel opening and closing unit is used for driving the two mandrel assemblies to synchronously move along a first direction in opposite directions or back to each other, so that the mandrel assemblies are switched between a clamping forming position and a standby position; the transmission unit is used for driving the forming mandrel in each mandrel assembly to synchronously rotate around the axis so as to drive the mandrel assemblies to switch between a clamping state and a rolling state.
In one embodiment of the disclosure, the transmission unit comprises a rotary servo motor and a ball spline shaft mechanism, the ball spline shaft mechanism is in transmission connection with an output end of the rotary servo motor, and two first synchronous pulleys which can rotate around an axial lead along with the ball spline shaft mechanism are mounted on the ball spline shaft mechanism; the two first synchronous pulleys are oppositely arranged along a first direction, each first synchronous pulley is in transmission connection with one second synchronous pulley, the axial lead of the second synchronous pulley is coincident with the axial lead of the forming mandrel, and the forming mandrel is relatively fixed relative to the second synchronous pulley and can rotate along with the second synchronous pulley.
In one embodiment of the disclosure, each mandrel assembly further includes a mandrel mounting shaft rotatably mounted to one mandrel base about its own axis, the mandrel base being movably mounted to the table in a first direction; the mandrel seat comprises two side plates which are oppositely arranged along a first direction, one ends of the two side plates, which deviate from the workbench, are provided with mandrel mounting shafts in a penetrating mode, and one end, facing the other mandrel mounting shaft, of each mandrel mounting shaft protrudes out of the side plate and is used for mounting the forming mandrel.
In one embodiment of the disclosure, the mandrel seat and the workbench are in sliding fit through a sliding rail assembly, and an auxiliary linear sliding rail assembly extending along a first direction is arranged between the workbench and the mandrel seat.
In one embodiment of the present disclosure, the spindle opening and closing unit includes two synchronous pulleys, one synchronous belt, and a driving unit, wherein: the two synchronous pulleys are oppositely arranged along a first direction, each section of synchronous belt is provided with a synchronous belt clamping plate capable of moving along with the synchronous belt, and each synchronous belt clamping plate is connected with one mandrel seat; the driving unit is in transmission connection with one of the synchronous pulleys.
In one embodiment of the disclosure, the template driving assembly comprises a lifting driving unit and a lifting assembly unit, the lifting assembly unit comprises a screw rod, a screw nut fixing plate and a die placing plate, one end of the screw rod is in transmission connection with the output end of the lifting driving unit, the other end of the screw rod is rotatably fixed on the die placing plate around an axial lead, and the extending direction of the screw rod is perpendicular to the workbench; the screw fixing plate can be movably arranged on the screw rod along the extending direction of the screw rod; and a pressure spring is arranged between the nut fixing plate and the die placing plate and used for providing thrust along the direction vertical to the workbench for the forming template when the forming position is clamped.
In one embodiment of the present disclosure, the molding die plate is movable relative to the die placement plate in a second direction, the second direction being perpendicular to the first direction and perpendicular to the table; the automatic spiral winding device further comprises a material taking cylinder, a cylinder body of the material taking cylinder is fixed relative to the workbench, and a piston rod of the material taking cylinder can stretch out and draw back along a second direction so as to push the forming template to move and discharge when the forming template lifting mechanism is located at a material taking station.
In one embodiment of the disclosure, the device further comprises a reset cylinder, wherein a cylinder body of the reset cylinder is fixed relative to the workbench, a piston rod of the reset cylinder can stretch and retract relative to the cylinder body along a second direction, and the second direction is perpendicular to the first direction and perpendicular to the workbench; and a piston rod of the reset cylinder forms an abutting surface at one side deviating from the cylinder body, so that when the mandrel assembly rolls the bimetallic strip semi-finished product, the forming template and a forming mandrel in the roll forming mechanism are prevented from sliding displacement.
Drawings
Fig. 1 is a schematic structural view of an automatic spiral winding device according to an embodiment of the present application;
fig. 2 is a schematic structural view of a bimetal sheet semi-finished product;
fig. 3 is a schematic structural view of a transmission unit in the automatic spiral winding device according to the embodiment of the present application;
fig. 4 is a schematic structural diagram of a mandrel opening and closing unit in an automatic spiral winding apparatus according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a lifting mechanism of a forming die plate in the automatic spiral winding device according to the embodiment of the present application.
Icon: 1-a roll forming mechanism; 11-a mandrel assembly; 111-a mandrel mounting shaft; 1111-a second synchronous pulley; 112 a-side plates; 112 b-side panels; 113-a pad sleeve; 114-flange bearings; 115-a fixed block; 116-a slider connecting plate; 117-a slide rail assembly; 118-auxiliary linear slide assembly; 119-a protective sheet seat and a protective sheet; 12-spindle drive assembly; 121-a transmission unit; 1210-rotating a servo motor; 1211-a ball spline shaft; 1212-drive shaft mount; 1213-a drive shaft support plate; 1214-transmission; 1215-coupling; 1216-a first synchronous pulley; 1217-a synchronous belt; 1218-tensioning device; 1219-flange bearings; 122-a mandrel opening and closing unit; 1221-a synchronous pulley; 1222-a synchronous belt; 1223—a timing belt clamping plate; 1224-connecting plates; 1225-a servo motor; 1226-a transmission; 2-a molding template lifting mechanism; 21-forming a template; 22-a servo motor; a 23-speed variator; a 24-coupling; 25-screw rod; 26-a die placement plate; 27-a nut fixing plate; 28-lifting slide rail assembly; 29-a slide rail mounting plate; 30-a lifting mechanism fixing plate; 31-a compression spring; 32-guide posts; 33-horizontal slide rails; 34-a material taking cylinder; 35-resetting the cylinder.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of an automatic spiral winding device according to an embodiment of the present application. In order to better understand the structural functions of each part of the automatic spiral winding device provided in the embodiment of the present application, fig. 2 is a schematic structural diagram of a semi-finished bimetal sheet product, and the semi-finished bimetal sheet product shown in fig. 2 includes a middle connecting portion B and two portions to be screwed C, where the portions to be screwed C are bent with respect to the middle connecting portion B, and the exemplary bending is 90 °. Fig. 5 is a schematic structural diagram of a lifting mechanism of a forming die plate in the automatic spiral winding device according to the embodiment of the present application.
Referring to fig. 2 and 5 in conjunction with the structure shown in fig. 1, the automatic spiral winding device provided in the embodiment of the present application includes a workbench a, on which a winding forming mechanism 1 and a forming template lifting mechanism 2 are mounted, wherein the winding forming mechanism 1 includes two groups of spindle assemblies 11 and a spindle driving assembly 12, the two groups of spindle assemblies 11 are mounted relatively along a first direction, and each group of spindle assemblies 11 is mounted on the workbench a movably along the first direction. Each group of spindle assemblies 11 comprises a forming spindle, at least one of which has a notch open towards the table a; the mandrel assembly 11 is provided with a clamping forming position and a standby position, when the mandrel assembly 11 is positioned at the clamping forming position, the notches of the two forming mandrels are matched to form an insertion space, and the insertion space is used for inserting the middle connecting part B of the bent bimetallic strip semi-finished product; the mandrel driving assembly 12 is connected with each group of mandrel assemblies 11, and is used for driving the mandrel assemblies 11 to switch between a clamping forming position and a standby position and driving the mandrel assemblies 11 to switch between a clamping state and a rolling state;
the molding template lifting mechanism 2 comprises a molding template 21 for bearing and clamping the bent bimetallic strip semi-finished product and a template driving assembly; the molding template lifting mechanism 2 is provided with a discharging position, a molding position and a material taking position, and the template driving assembly is used for driving the molding template 21 to be switched among the discharging position, the molding position and the material taking position; when the forming template lifting mechanism 2 is in the forming station, the forming template 21 is used for abutting the to-be-screwed part C of the bimetallic strip semi-finished product with the surface of the forming mandrel and keeping a certain forming pressure.
In the automatic spiral winding device provided by the embodiment of the application, the two groups of mandrel assemblies 11 arranged on the workbench A can be switched between the clamping forming position and the standby position under the driving of the mandrel driving assembly 12. Specifically, when the mandrel assemblies 11 are in the standby position, the forming mandrels of the two sets of mandrel assemblies 11 are at a distance along the first direction; when the mandrel assembly 11 is in the clamping and forming position, the notches on the two forming mandrels are matched to form an insertion space for inserting the middle connecting part of the bimetallic strip semi-finished product; when the mandrel driving assembly 12 drives the forming mandrels to rotate, the two forming mandrels simultaneously rotate around the mandrel axis synchronously except for holding the middle connecting part so as to wind the part to be screwed of the bimetallic strip semi-finished product. The forming template lifting mechanism 2 arranged on the workbench A cooperates with the rolling forming mechanism 1 to act, specifically, a forming template 21 in the forming template lifting mechanism 2 is used for bearing a bimetallic strip semi-finished product, and a template driving assembly is used for driving the forming template 21 to act. The forming template lifting mechanism 2 specifically comprises a feeding position, a forming position and a material taking position, when the forming template lifting mechanism 2 is positioned at the feeding position, feeding can be performed by an external manipulator or manually, when the forming template lifting mechanism 2 is positioned at a forming station, the forming template 21 is used for abutting the part C to be coiled of the bimetallic strip semi-finished product with the surface of the forming mandrel and keeping certain forming pressure so as to roll the part C to be coiled when the forming mandrel rotates around the axis; when the molding template lifting mechanism 2 is at the material taking position, the spiral bimetallic strip coiled on the molding mandrel can be collected.
It will be appreciated that the forming die 21 may maintain a certain pressure when the portion C to be screwed of the bimetallic strip semi-finished product is brought into abutment with the surface of the forming mandrel in the clamped condition, and that this pressure may be adjusted by adjusting the forming position.
It should be noted that, the automatic spiral winding device provided in the embodiment of the present application may implement spiral winding of the portion to be spiral C in the bimetal semi-finished product by the winding forming mechanism 1 and the forming template lifting mechanism 2 provided on the workbench a, so as to form a spiral bimetal.
Of course, the timing of the respective positions of the forming die lifting mechanism 2 and the roll forming mechanism 1 is set as required. In some embodiments, the following settings may be made:
before the mandrel assembly 11 moves from the standby position to the clamping and forming position, the forming template lifting mechanism 2 must drive the forming template 21 to be in the discharging position, so that the manipulator clamps the intermediate connecting part B of the bimetallic strip semi-finished product to place the bimetallic strip semi-finished product into the forming template 21; then, the two spindle assemblies 11 are driven by the spindle driving assembly 12 to start to move synchronously from the standby position to the grip forming position. When the mandrel assembly 11 reaches the clamping and forming position, the notches of the two forming mandrels cooperate to form an insertion space into which the intermediate connecting portion B of the bimetallic strip semi-finished product is inserted. At this time, the manipulator holding the bimetal semi-finished product is released, the molding template lifting mechanism 2 is lifted to a molding position, and the mandrel assembly 11 starts to roll and mold under the driving of the mandrel driving assembly 12. When each group of mandrel assemblies 11 is in the rolled state, each forming mandrel rotates around its own axis to roll one to-be-screwed portion C of the bimetal semi-finished product exposing the insertion space.
Of course, the molding die plate lifting mechanism 2 may have a material taking position in addition to the material placing position and the molding position. Specifically, when the coiling mechanism 1 is at the standby position, the molding template lifting mechanism 2 is at the discharging position, and the manipulator waits for placing the bimetallic strip semi-finished product; when the bimetal semi-finished product is put into the forming template 21 and the coiling and forming mechanism 1 reaches the clamping and forming position, the forming template lifting mechanism 2 is lifted to the forming position, and the coiling and forming mechanism 1 starts forming; after the coil forming mechanism 1 completes the forming operation, the forming template lifting mechanism 2 descends to the material taking position, then the mandrel assembly 11 returns to the standby position under the driving of the mandrel driving assembly 12, and the bimetallic strip automatically slides down.
It should be noted that there are various possibilities for the arrangement of the two forming mandrels, and only one forming mandrel may have a notch, or both forming mandrels may have notches to form an insertion space in cooperation.
In one possible embodiment, the forming mandrel of one mandrel assembly 11 of the two mandrel assemblies 11 is notched, and the notched forming mandrel has a guiding taper toward one end of the other forming mandrel; the other forming mandrel is provided with a round hole, and the opening of the round hole is positioned at one side of the forming mandrel facing the other forming mandrel. It is worth noting that the outer diameters of the two forming mandrels are consistent, the guiding taper is concentric with the outer circle of the forming mandrel where the two forming mandrels are located, and the round hole is concentric with the outer circle of the forming mandrel where the round hole is located. Notably, the maximum taper diameter is matched with the round hole of the other forming mandrel in size.
It should be understood that when the mandrel assembly 11 reaches the clamping and forming position, the intermediate connecting portion of the bimetal semi-finished product can be just inserted into the notch of the forming mandrel, and the guiding taper of the forming mandrel just enters the central circular hole of the forming mandrel at the other side, so that the bimetal semi-finished product is clamped.
It should be noted that there are various possible structures of the mandrel driving assembly 12, and as an exemplary structure, please continue to refer to the structure shown in fig. 1, the mandrel driving assembly 12 includes a transmission unit 121 and a mandrel opening and closing unit 122 mounted on the workbench a, and the mandrel opening and closing unit 122 is used for driving the mandrel assemblies 11 on two sides to synchronously move in opposite directions or opposite directions along the first direction, so that the mandrel assemblies 11 are switched between the clamping forming position and the standby position; the transmission unit 121 is used for driving the forming mandrel in each mandrel assembly 11 to synchronously rotate around the axis, so that the driving mandrel assemblies 11 are switched between a clamping state and a rolling state.
Fig. 3 is a schematic structural diagram of a transmission unit 121 according to an embodiment of the present application. Specifically, the transmission unit 121 includes a rotary servo motor 1210 and a ball spline shaft 1211, wherein the rotary servo motor 1210 is fixed relative to the table a, and an output end of the rotary servo motor 1210 is in transmission connection with the ball spline shaft 1211. Illustratively, the rotary servo motor 1210 is fixed on the workbench a through a driving shaft seat 1212 and a driving shaft support plate 1213, the driving shaft support plate 1213 is mounted on the workbench a, one end of the driving shaft seat 1212 is connected with the driving shaft support plate 1213, and the other end is fixed at the output end of the rotary servo motor 1210. Of course, the transmission 1214 and the coupling 1215 shown in fig. 3 may be further disposed between the rotary servo motor 1210 and the ball spline shaft 1211, which will not be described herein.
With continued reference to the structure shown in fig. 3, the extending direction of the ball spline shaft 1211 is parallel to the first direction, and two first timing pulleys 1216 are mounted on the ball spline shaft 1211 so as to be rotatable about the axis of the ball spline shaft 1211, and each first timing pulley 1216 is drivingly connected to a second timing pulley 1111 mounted on the spindle mounting shaft 111 via a timing belt 1217. Of course, a tensioning device 1218 for tensioning the timing belt 1217 may be provided to adjust the tightness of the timing belt 1217.
It should be appreciated that as the output of the rotary servomotor 1210 rotates, the ball spline shaft 1211 rotates with the output of the rotary servomotor 1210; while the ball spline shaft 1211 rotates, the two first timing pulleys 1216 drive the two second timing pulleys 1111 to synchronously rotate; while the second timing pulley 1111 rotates, the molding spindle mounted inside the spindle mounting shaft 111 rotates around its own axis with the second timing pulley 1111 to achieve rolling.
It should be noted that, when the spindle mounting shafts 111 are mounted on the table a, for example, referring to the structure shown in fig. 3, each spindle mounting shaft 111 may be provided to be mounted on the table a through a spindle mount. Specifically, the spindle mounting shaft 111 is rotatably mounted to a spindle base about its own axis, and the spindle base is movably mounted to the table a in the first direction. Each spindle seat comprises a side plate 112a and a side plate 112b which are oppositely arranged along the first direction, a spindle mounting shaft 111 is arranged at one end of the side plate 112a and one end of the side plate 112b, which is away from the workbench A in a penetrating way, and a cushion sleeve 113 and a flange bearing 114 are arranged between the spindle mounting shaft 111 and each of the side plates 112a and 112b. In the first direction, each mandrel mounting shaft 111 protrudes toward one end of the other mandrel mounting shaft 111 out of the side plate 112b, and the side of the mandrel mounting shaft 111 is used for mounting a molding mandrel. It is worth noting that the forming mandrel is provided with a self-positioning device, so that the forming mandrel can be self-positioned after being installed. Illustratively, a mating structure is provided between the forming mandrel and the side plate 112b, and the forming mandrel can be smoothly installed in place when the alignment structure of the forming mandrel is matched with the alignment structure of the side plate 112b. Thus, no additional positioning operations are required when installing the forming mandrel.
With continued reference to the structure shown in fig. 3, the portion of the spindle mounting shaft 111 between the side plates 112a and 112b is sleeved with a second timing pulley 1111.
Of course, in order to enhance stability between the two side plates 112a and 112b, a fixing block 115 may be further provided between the two side plates. And ball spline shaft 1211 may be secured to side plates 112a and 112b of one mandrel base by flange bearings 1219.
When the connection relation between the core shaft seat and the workbench A is set, the core shaft seat and the workbench A can be in sliding fit through the sliding rail component. For example, as shown in fig. 3, one end of the side plate 112a and the side plate 112b near the table a is fixed to a slider of a slide rail assembly 117 by a slider connecting plate 116, and the slider is slidably engaged with a slide rail provided on the table a.
Of course, an auxiliary linear slide assembly 118 extending in the first direction may also be provided between the table a and the slide connecting plate 116. Notably, the dual positioning of the spindle mounting shafts 111 by the ball spline shaft 1211 and the auxiliary linear slide assembly 118 ensures a tight synchronization of the two side spindle mounting shafts 111 during winding.
On the basis of the technical scheme, the photoelectric sensor corresponding to the clamping station can be further arranged, so that the failure of clamping can be avoided.
In addition, with continued reference to the structure shown in fig. 3, in order to ensure that the bimetal semifinished product does not separate from the forming die plate 21 during rolling, a protection sheet seat and a protection sheet 119 for protection may be provided on a side of each mandrel assembly 11 facing the other mandrel assembly 11. Illustratively, the guard mount and guard 119 are disposed on the side plate 112b adjacent the forming mandrel.
Fig. 4 is a schematic structural diagram of a mandrel opening and closing unit 122 according to an embodiment of the present application. As shown in the structure of fig. 4, the spindle opening and closing unit 122 includes:
the two synchronous pulleys 1221, a synchronous belt 1222 and a driving unit, wherein the two synchronous pulleys 1221 are arranged in parallel along the first direction, and the synchronous belts 1222 at the upper side and the lower side are connected to the slide block connecting plate 116 of the mandrel base through a synchronous belt clamping plate 1223 and a connecting plate 1224; the driving unit is connected to one of the synchronous pulleys 1221, and when the driving unit drives the synchronous pulley 1221 to rotate, the synchronous belt clamping plate 1223 can drive the spindle base to move along the first direction.
Specifically, when the driving unit is operated, the timing belt 1222 rotates around the axis with the output end of the driving unit, and at this time, the two timing belt clamping plates 1223 move toward each other in the first direction or move away from each other. It is noted that, when the two synchronous belt clamping plates 1223 move towards each other, the two mandrel holders are switched from the standby position to the clamping forming position under the driving of the slide connecting plate 116. Similarly, when the two timing belt clamping plates 1223 move away from each other, the two spindle bases are driven by the slider connecting plate 116 to move from the clamping forming position to the standby position.
With continued reference to the configuration shown in fig. 4, the drive unit illustratively includes a servomotor 1225 and a transmission 1226, with the output of the servomotor 1225 being drivingly connected to the input of the transmission 1226, and the output of the transmission 1226 being drivingly connected to one of the timing pulleys 1221.
Fig. 5 is a schematic structural diagram of a molding die lifting mechanism 2 according to an embodiment of the present application. As shown in the structure of fig. 5, the molding die plate lifting mechanism 2 includes a molding die plate 21 and a die plate driving assembly. The template driving assembly comprises a lifting driving unit and a lifting assembly unit, wherein the lifting driving unit is exemplified by a servo motor 22, and the output end of the servo motor 22 is in transmission connection with the lifting assembly unit to drive the lifting assembly unit to move along a third direction (namely, the direction vertical to the workbench A). Of course, a transmission 23 and a coupling 24 may also be provided between the servomotor 22 and the lifting assembly unit.
The servo motor 22, the transmission 23, the coupling 24 and the lifting assembly can be fixed on the workbench A by using a fixing assembly. Illustratively, the stationary assembly includes first and second mounting plates S1 and S2 disposed opposite each other in a third direction, each side of the first and second mounting plates S1 and S2 being connected by a third mounting plate S3. As shown in fig. 5, the transmission 23 is fixed to a first mounting plate S1, and the coupling 24 is disposed in a notch-shaped structure formed by the first mounting plate S1, the second mounting plate S2, and two third mounting plates S3.
With continued reference to the structure shown in fig. 5, the transmission end of the coupling 24 is connected to the lifting assembly unit. Specifically, the output end of the coupling 24 is connected to a screw rod 25 in the lifting assembly unit, one end of the screw rod 25 is in transmission connection with the output end of the lifting driving unit, and the other end of the screw rod is rotatably fixed to the mold placement plate 26 around the axis. It should be noted that the extending direction of the screw 25 is perpendicular to the working table a, and the screw 25 is provided with a nut fixing plate 27. Specifically, the screw fixing plate 27 is provided with a screw that cooperates with the screw shaft 25 such that the screw fixing plate 27 is movably mounted to the screw shaft 25 in the extending direction of the screw shaft 25. Of course, to enhance the stability of movement of the nut fixing plate 27, an elevating slide rail assembly 28 may be provided between the nut fixing plate 27 and the table a, for example.
In one embodiment, the rail portion of the lifting rail assembly 28 is fixed to the working surface side of the table a by a rail mounting plate 29 and a lifting mechanism fixing plate 30, and the screw fixing plate 27 is connected to the slider of the lifting rail assembly 28 by a lifting slider connecting plate. It will be appreciated that the table a has a gap formed therein through which the screw 25 passes, the fixed assembly and the servo motor 22 being located below the table a.
The molding die plate 21 and other auxiliary parts are mounted on the nut fixing plate 27 and move up and down with the elevating mechanism. With continued reference to the structure shown in fig. 5, a compression spring 31 is provided between the nut fixing plate 27 and the die-placing plate 26, and the compression spring 31 is used to provide a pushing force in the direction perpendicular to the table a to the molding die plate 21 when the molding position is clamped. It should be understood that the number of the compression springs 31 and the positions thereof may be set according to the needs, and will not be described herein. Of course, a guide post 32 extending in the direction perpendicular to the table a may be inserted into the compression spring 31 to guide the same. Illustratively, the guide post 32 is secured at one end to the mold placement plate 26, and the nut securing plate 27 is slidable along the guide post 32.
In some embodiments, the molding die plate 21 is movable relative to the die-placement plate 26 in a second direction that is perpendicular to the first direction and perpendicular to the platen a. Illustratively, the forming die 21 is mounted on a slide of the horizontal slide rail 33, and when the driving unit drives the screw 25 to rotate, the screw drives the screw fixing plate 27 to move up and down in the direction of the vertical table a.
The embodiment of the application provides an automatic spiral winding device still includes and gets material cylinder 34, and the cylinder body of getting material cylinder 34 is fixed relative workstation A position, and the piston rod of getting material cylinder 34 can be followed the second direction and flexible for when shaping template elevating system 2 is in the material station of getting, promote shaping template 21 and remove the unloading.
It should be noted that, the material taking cylinder 34 may be used to automatically discharge materials along with the automatic spiral winding device provided in the embodiment of the present application, so as to improve the winding efficiency.
In some embodiments, the automatic spiral winding device provided by the embodiment of the application further includes a reset cylinder 35, a cylinder body of the reset cylinder 35 is fixed relative to the workbench a, a piston rod of the reset cylinder 35 can stretch and retract relative to the cylinder body along a second direction, and the second direction is perpendicular to the first direction and perpendicular to the workbench a; the piston rod of the reset cylinder 35 forms an abutment surface on the side facing away from the cylinder body for preventing the sliding displacement of the forming die plate 21 and the forming mandrel in the winding mechanism 1 when the mandrel assembly 11 winds up the bimetal semi-finished product.
It should be appreciated that the reset cylinder 35 may also be used to fine-tune the position of the forming die plate 21 in the forming position so that the bimetal strip on the forming die plate 21 is accurately aligned with the insertion space.
For clarity of description of the automatic spiral winding apparatus provided in the embodiments of the present application, the working process of the automatic spiral winding apparatus will now be described with reference to the structures of the reset cylinder 35 and the material taking cylinder 34, and the specific details are as follows:
the molding template lifting mechanism 2 has three working positions, namely a material taking position, a material discharging position and a molding position from bottom to top. When the mandrel assembly 11 is at the standby position, the forming die lifting mechanism 2 is at the discharging position, and at the moment, the reset cylinder 35 acts to accurately position the forming die 21 at the discharging position of the forming die 21. When the winding preparation starts, the forming die plate lifting mechanism 2 is lifted to the forming position, at which time the forming die plate 21 is brought into close contact with the forming mandrel in the winding mechanism 1 to press the bimetal semifinished product. It should be understood that, due to the presence of the compression spring 31, the molding pressure can be adjusted when the molding position height of the molding die lifting mechanism 2 is adjusted.
The forming operation starts after the forming mandrel in the roll forming mechanism 1 rotates, at this time, the forming template 21 moves along the horizontal sliding rail 33 toward the reset cylinder 35 along with the rotation of the forming mandrel in the roll forming mechanism 1, at this time, the reset cylinder 35 functions to prevent the forming template 21 and the forming mandrel in the roll forming mechanism 1 from sliding displacement.
After the molding is finished, the reset cylinder 35 stops working, the molding die plate lifting mechanism 2 descends to the material taking position, and the mandrel opening and closing unit 122 in the winding and molding mechanism 1 works, so that the mandrel assembly 11 returns to the standby position from the clamping molding position. At this time, the material taking cylinder 34 operates to drive the material receiving hopper to move so that the formed bimetal strip slides into the collecting box. At this time, the mandrel opening and closing unit 122 in the roll forming mechanism 1 operates to completely reset the forming mandrel.
After the forming mandrel is completely reset, the forming template lifting mechanism 2 is lifted to the discharging position, the material taking cylinder 34 is reset, the resetting cylinder 35 works, and the forming template 21 in the forming template lifting mechanism 2 returns to the material taking position.
It is noted that, when the forming die plate 21 moves from the discharging position to the forming position, the moving direction of the forming die plate 21 is perpendicular to the screw fixing plate 27 due to the four guide posts 32, when the compression spring 31 is compressed.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. An automatic spiral winding apparatus, comprising: a workbench provided with a coiling and shaping mechanism and a shaping template lifting mechanism, wherein,
the roll forming mechanism comprises a mandrel driving assembly and two groups of mandrel assemblies, wherein the two groups of mandrel assemblies are oppositely arranged along a first direction, and each group of mandrel assemblies is movably arranged on the workbench along the first direction; each group of mandrel assemblies comprises a forming mandrel, and at least one of the two forming mandrels is provided with a notch with an opening facing the workbench; the mandrel assembly is provided with a clamping forming position and a standby position, when the mandrel assembly is positioned at the clamping forming position, the notches of the two forming mandrels are matched to form an insertion space, and the insertion space is used for inserting the middle connecting part of the bent bimetallic strip semi-finished product; the mandrel driving assembly is connected with each group of mandrel assemblies and used for driving the mandrel assemblies to switch between a clamping forming position and a standby position;
the molding template lifting mechanism comprises a molding template for bearing and clamping the bent bimetallic strip semi-finished product and a template driving assembly; the molding template lifting mechanism is provided with a discharging position and a molding position, and the template driving assembly is used for driving the molding template to be switched between the discharging position and the molding position; when the molding template lifting mechanism is positioned at a molding station, the molding template is used for abutting the to-be-screwed part of the bimetallic strip semi-finished product with the surface of the molding mandrel and keeping a certain molding pressure.
2. An automatic spiral winding apparatus as recited in claim 1, wherein in both of said spindle assemblies:
the forming mandrel of one mandrel assembly is provided with a notch, and one end of the forming mandrel with the notch, which faces the other forming mandrel, is provided with a guiding taper;
the other forming mandrel of the mandrel assembly is provided with a round hole, the opening of the round hole is positioned on one side of the forming mandrel facing the other forming mandrel, and the aperture size of the round hole is matched with the size of the position with the largest diameter of the guiding taper.
3. The automatic spiral winding apparatus of claim 1, wherein the mandrel driving assembly comprises a transmission unit and a mandrel opening and closing unit which are installed on the workbench, and the mandrel opening and closing unit is used for driving the two mandrel assemblies to synchronously move towards or away from each other along a first direction so as to enable the mandrel assemblies to be switched between a clamping forming position and a standby position; the transmission unit is used for driving the forming mandrel in each mandrel assembly to synchronously rotate around the axis so as to drive the mandrel assemblies to switch between a clamping state and a rolling state.
4. The automatic spiral winding apparatus of claim 3, wherein the transmission unit comprises a rotary servo motor and a ball spline shaft mechanism, the ball spline shaft mechanism is in transmission connection with an output end of the rotary servo motor, and two first synchronous pulleys which can rotate around an axial line along with the ball spline shaft mechanism are mounted on the ball spline shaft mechanism; the two first synchronous pulleys are oppositely arranged along a first direction, each first synchronous pulley is in transmission connection with one second synchronous pulley, the axial lead of the second synchronous pulley is coincident with the axial lead of the forming mandrel, and the forming mandrel is relatively fixed relative to the second synchronous pulley and can rotate along with the second synchronous pulley.
5. The automatic spiral winding apparatus of claim 4, wherein each of the mandrel assemblies further comprises a mandrel mounting shaft rotatably mounted about its own axis to a mandrel base, the mandrel base being movably mounted to the table in a first direction; the mandrel seat comprises two side plates which are oppositely arranged along a first direction, one ends of the two side plates, which deviate from the workbench, are provided with mandrel mounting shafts in a penetrating mode, and one end, facing the other mandrel mounting shaft, of each mandrel mounting shaft protrudes out of the side plate and is used for mounting the forming mandrel.
6. The automatic spiral winding apparatus of claim 5, wherein the mandrel base is slidably engaged with the table by a slide rail assembly, and an auxiliary linear slide rail assembly extending in a first direction is provided between the table and the mandrel base.
7. The automatic spiral winding apparatus of claim 6, wherein the mandrel opening and closing unit comprises two timing pulleys, a timing belt, and a driving unit, wherein: the two synchronous pulleys are oppositely arranged along a first direction, each section of synchronous belt is provided with a synchronous belt clamping plate capable of moving along with the synchronous belt, and each synchronous belt clamping plate is connected with one mandrel seat; the driving unit is in transmission connection with one of the synchronous pulleys.
8. The automatic spiral winding apparatus of claim 1, wherein the die plate driving assembly comprises a lifting driving unit and a lifting assembly unit, the lifting assembly unit comprises a screw rod, a screw nut fixing plate and a die placing plate, one end of the screw rod is in transmission connection with the output end of the lifting driving unit, the other end of the screw rod is rotatably fixed on the die placing plate around an axial lead, and the extending direction of the screw rod is perpendicular to the workbench; the screw fixing plate can be movably arranged on the screw rod along the extending direction of the screw rod; and a pressure spring is arranged between the nut fixing plate and the die placing plate and used for providing thrust along the direction vertical to the workbench for the forming template when the forming position is clamped.
9. The automated spiral winding apparatus of claim 8, wherein the forming die plate is movable relative to the die placement plate in a second direction, the second direction being perpendicular to the first direction and perpendicular to the table; the automatic spiral winding device further comprises a material taking cylinder, a cylinder body of the material taking cylinder is fixed relative to the workbench, and a piston rod of the material taking cylinder can stretch out and draw back along a second direction so as to push the forming template to move and discharge when the forming template lifting mechanism is located at a material taking station.
10. The automatic spiral winding apparatus of claim 1, further comprising a reset cylinder, a cylinder body of the reset cylinder being fixed in position relative to the table, a piston rod of the reset cylinder being retractable relative to the cylinder body in a second direction, the second direction being perpendicular to the first direction and perpendicular to the table; and a piston rod of the reset cylinder forms an abutting surface at one side deviating from the cylinder body, so that when the mandrel assembly rolls the bimetallic strip semi-finished product, the forming template and a forming mandrel in the roll forming mechanism are prevented from sliding displacement.
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| CN202111385629.9A CN114082816B (en) | 2021-11-22 | 2021-11-22 | Automatic spiral winding device |
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