WO2023092671A1 - 一种折弯保压单元及产品折弯生产线 - Google Patents

一种折弯保压单元及产品折弯生产线 Download PDF

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Publication number
WO2023092671A1
WO2023092671A1 PCT/CN2021/136694 CN2021136694W WO2023092671A1 WO 2023092671 A1 WO2023092671 A1 WO 2023092671A1 CN 2021136694 W CN2021136694 W CN 2021136694W WO 2023092671 A1 WO2023092671 A1 WO 2023092671A1
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WO
WIPO (PCT)
Prior art keywords
bending
product
station
tooling
horizontal
Prior art date
Application number
PCT/CN2021/136694
Other languages
English (en)
French (fr)
Inventor
王新江
尹春雷
Original Assignee
歌尔股份有限公司
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Publication date
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Publication of WO2023092671A1 publication Critical patent/WO2023092671A1/zh

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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
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • 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
    • B21D11/22—Auxiliary equipment, e.g. positioning devices
    • 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
    • B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
    • 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
    • B21D43/12—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
    • 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
    • B21D43/14—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by turning devices, e.g. turn-tables

Definitions

  • the invention belongs to the technical field of product bending, and in particular relates to a bending pressure holding unit and product assembly equipment.
  • conductive springs are usually installed on the electro-acoustic components, one end of which is electrically connected to the internal electronic components of the electro-acoustic component, and the other end is electrically connected to the outside electronic circuit.
  • one end electrically connected to the external electronic circuit needs to bend the conducting shrapnel.
  • the close electrical connection with the external electronic circuit is realized by using the bent contact portion of the conductive shrapnel (which has a certain elastic potential energy due to being squeezed).
  • the poor stability of the current bending device cannot meet the high requirements of the height, position, and consistency of the conductive shrapnel after bending, which affects the yield of the product; and the current bending device only bends a single product, Although the factors that affect the bending quality are much less, the efficiency is low, the production capacity is small, and the cost is high, which cannot meet the needs of mass industrial production.
  • the current bending production line is arranged horizontally, has a complex structure, takes up a large space, and cannot meet the beat requirements of the product process.
  • the technical problem solved by the present invention is to provide a bending pressure holding unit and a product bending production line, which have high efficiency and can ensure the height, position and degree of bending of the product. Consistency improves product yield.
  • an embodiment of the present invention provides a bending and pressure holding unit, including a first bending device arranged at the first bending station, and a first bending device arranged at the first bending station.
  • the first bending device is used to simultaneously bend the parts to be bent of multiple products in the first direction
  • the second bending device is used to bend the parts to be bent of multiple products simultaneously.
  • a bending part that has completed bending in the first direction is bent in the second direction at the same time, and the first direction is perpendicular to the second direction;
  • the pressure maintaining device is used for simultaneously maintaining pressure on all the bent parts that have been bent in the second direction.
  • first bending device is one of the vertical bending device and the horizontal bending device
  • second bending device is the other of the vertical bending device and the horizontal bending device.
  • the vertical bending device includes a first frame, a mounting plate vertically slidably mounted on the first frame, a vertical frame mounted on the first frame for driving the motion of the mounting plate, A driving member, a plurality of vertical bending structures installed on the mounting plate, and an adjustment structure for independently adjusting the posture of bending components in the plurality of vertical bending structures.
  • the vertical bending structure includes a mounting base, a vertical bending head rotatably mounted on the mounting base, and a horizontally extending first elastic restoring member; the first elastic restoring member is clamped on the vertical Between the straight bending head and the mounting plate; one end of the vertical bending head is provided with a first rolling member for contacting the part to be bent of the product;
  • the adjustment structure includes an adjustment plate connected to at least two mounting seats at the front and rear, and the adjustment plate is screwed with an adjustment piece corresponding to the vertical bending head one by one, and the adjustment piece is connected to the vertical bending head.
  • the side of the straight bending head away from the mounting plate abuts against and is used to rotate the vertical bending head to realize posture adjustment.
  • a limit block is provided on the top of the first frame, and a hydraulic buffer is provided on the limit block;
  • a tension spring extending vertically is arranged between the lower end of the mounting plate and the bottom of the first frame.
  • the horizontal bending device includes a second frame and a plurality of horizontal driving parts arranged at intervals on the top of the second frame; the horizontal driving parts are provided with a horizontal bending structure with adjustable posture.
  • the horizontal bending structure includes a base on which a horizontal bending head is rotatably installed, and a vertically extending second bending head is interposed between the horizontal bending head and the power part of the horizontal driving member.
  • Two elastic reset members, one end of the horizontal bending head is provided with a second rolling member for contacting the bending part of the product;
  • An adjustment assembly is provided on the base above the horizontal bending head, and the adjustment assembly is in contact with the horizontal bending head for rotating the horizontal bending head to achieve posture adjustment.
  • the press-down auxiliary bending device includes a support, and a connecting plate is provided on the top of the support.
  • the connecting plate is provided with two One-to-one corresponding pressing mechanism;
  • the pressing mechanism includes a mounting frame vertically slidably mounted on the connecting plate, a driving structure disposed on the connecting plate for driving the vertical movement of the mounting frame, and a floating mechanism disposed on the mounting frame. Head components.
  • the embodiment of the present invention also provides a product bending production line, including a multi-station turntable device, a product conveying device, a product feeding device, a product unloading device, and the bending pressure holding device described in any one of claims 1-8. unit;
  • the surrounding of the multi-station turntable device is at least sequentially provided with a loading station, the first bending station, the second bending station, the pressure holding station and a blanking station;
  • the multi-station turntable device is used to drive a plurality of circulation tools for loading the product to circulate among the plurality of stations sequentially;
  • the product conveying device is used to convey the product to be bent to the loading and connecting station, and is also used to convey the product on the unloading and connecting station after being pressurized to the next station;
  • the product feeding device is used to transfer the product on the feeding connecting station to the transfer tooling that has been transferred to the feeding station;
  • the product unloading device is used to transport the product that has been pressure-maintained on the transfer tooling transferred to the unloading station to the unloading joining station.
  • the multi-station turntable device includes a base, a rotary drive set on the base, and a turntable connected to the power part of the rotary drive; the turntable is provided with multiple There are one-to-one corresponding tool installation positions, and the transfer tool is installed on the tool installation positions.
  • the product bending production line also includes two lifting mechanisms and two tooling control mechanisms;
  • the two lifting mechanisms correspond one-to-one to the first bending station and the second bending station, and are located below the turntable to prevent the turntable from being folded due to the pressing down.
  • the bending device is pressed down and deformed;
  • the two tooling control mechanisms are in one-to-one correspondence with the loading station and the unloading station, and are located under the turntable, and are used to control the action of the product clamping structure on the circulation tooling to facilitate up and down material.
  • the product feeding device is the same as the product unloading device; both include a column, a horizontal transport structure arranged on the column, a lifting structure set on the horizontal transport structure, a lifting structure set on the lifting structure Multiple product pick-and-place structures and a variable pitch adjustment mechanism for adjusting the spacing between multiple product pick-and-place structures;
  • the product pick-and-place structure is used to pick up the product and drive the product to rotate to adjust the angle of the product.
  • variable pitch adjustment mechanism includes a connecting plate arranged on the lifting structure, the connecting plate is provided with a horizontal reciprocating structure and a plurality of horizontally arranged and one-to-one correspondence with the product pick-and-place structure slider,
  • the sliding seat at the end is fixedly connected with the connecting plate, and the rest of the sliding seats are slidingly connected with the connecting plate, the power part of the horizontal reciprocating structure is connected with the sliding seat at the head end and two adjacent
  • the sliding seats are flexibly connected; driven by the horizontal reciprocating structure, all the sliding seats are attached to or separated from each other to adjust the distance between adjacent sliding seats; the product pick-and-place structure is set on the corresponding slider.
  • the product conveying device includes a main conveyor belt mechanism, a secondary conveyor belt mechanism, two tool positioning jacking mechanisms, and two tool transfer mechanisms;
  • the main conveyor belt mechanism and the secondary conveyor belt mechanism are arranged side by side and the conveying direction is opposite;
  • the two tool positioning jacking mechanisms are arranged from upstream to downstream along the conveying direction of the main conveyor belt mechanism, corresponding to the loading and unloading joint stations respectively; the two tool positioning jacks
  • the lifting mechanism is used to position and jack up the loading tooling or unloading tooling so that it is separated from the main conveyor belt mechanism, so as to facilitate product loading or unloading;
  • the two tooling transfer mechanisms are located between the loading joint station and the unloading joint station;
  • the main conveyor belt mechanism is used to transport the feeding tooling carrying the product to be bent, and one of the tooling transfer mechanisms is used to lift up the empty feeding tooling and transfer it to the secondary conveyor belt mechanism;
  • the secondary conveyor belt mechanism is used to transport the empty blanking tool, and the other tool transfer mechanism is used to jack up the empty blanking tool and transfer it to the main conveyor mechanism, and the main conveyor
  • the belt mechanism is used to continue conveying the unloading tooling carrying the pressure-maintained products.
  • the tool transfer mechanism includes an installation frame, the top of the installation frame is provided with a transition transfer plate, and the transition transfer plate is located above the main conveyor belt mechanism and the slave conveyor belt mechanism;
  • Two tooling jacking mechanisms corresponding to the main conveyor belt mechanism and the secondary conveyor belt mechanism are installed on the installation frame, and the transition transfer plate is provided with a tooling jacking mechanism that matches the tooling jacking mechanism avoidance exit;
  • the transition transfer plate is provided with a horizontal push-pull structure for pushing or pulling the loading tool or the unloading tool from one tool jacking mechanism to the other tool jacking mechanism.
  • the bending pressure holding unit in the present invention includes a first bending device arranged at the first bending station, a second bending device arranged at the second bending station, and the first bending station and the second bending station.
  • the pressing auxiliary bending device corresponding to the two bending stations and the pressure holding device arranged at the holding station; with the assistance of the pressing auxiliary bending device, the first bending device is used for multiple products to be folded
  • the bending part is bent in the first direction at the same time
  • the second bending device is used for bending in the second direction at the same time for multiple bending parts that have been bent in the first direction.
  • the first direction is perpendicular to the second direction;
  • the device is used to hold pressure simultaneously for all the bending parts that have been bent in the second direction.
  • the product bending production line includes a multi-station turntable device, a product conveying device, a product feeding device, a product unloading device and a bending pressure holding unit.
  • the bending and pressure holding unit of the present invention can bend multiple products at the same time, which improves production efficiency and reduces production costs.
  • the movement of the product affects the bending effect of the product; moreover, the bending in two vertical directions is carried out step by step, and then the pressure is maintained, which is easier to meet the high requirements of height, position and consistency after bending, ensuring Product yield.
  • the use of a multi-station turntable device can save space and meet the beat requirements of the product process.
  • the present invention can meet high requirements such as height, position and consistency after bending, and ensure the yield rate of products; and it has high production efficiency and strong versatility.
  • Fig. 1 is a schematic structural view of the bending and pressure-holding unit of the present invention
  • Fig. 2 is a schematic structural view of the vertical bending device in Fig. 1;
  • Fig. 3 is a schematic structural view of the mounting plate and its upper parts in Fig. 2;
  • Fig. 4 is a schematic structural view of the vertical bending structure and the adjustment structure in Fig. 3;
  • Fig. 5 is a structural cross-sectional view of the rotating connection between the mounting seat and the vertical bending head in Fig. 4;
  • Fig. 6 is a schematic structural view of the horizontal bending device in Fig. 1;
  • Fig. 7 is a schematic diagram of the installation structure of the horizontal bending structure and the horizontal driving member in Fig. 6;
  • Fig. 8 is a structural cross-sectional view of the rotating connection between the base and the horizontal bending head in Fig. 7;
  • Fig. 9 is a schematic structural view of the pressing auxiliary bending device in Fig. 1;
  • Fig. 10 is an exploded view of the structure of the pressing mechanism in Fig. 9;
  • Fig. 11 is a schematic structural view of the pressure maintaining device in Fig. 1;
  • Fig. 12 is a schematic structural view of the product bending production line of the present invention.
  • Figure 13 is a top view of Figure 12;
  • Fig. 14 is a schematic structural view of the product feeding device in Fig. 12;
  • Fig. 15 is a structural exploded view of the product pick-and-place structure and variable pitch adjustment mechanism in Fig. 14;
  • Fig. 16 is a structural schematic diagram of another state of the variable pitch adjustment mechanism in Fig. 15;
  • Fig. 17 is a schematic structural view of the multi-station turntable device in Fig. 12;
  • Fig. 18 is a partial structural schematic diagram of the circulation tooling in Fig. 17;
  • Fig. 19 is a schematic structural view of the product conveying device in Fig. 12;
  • Figure 20 is a top view of Figure 19;
  • Fig. 21 is a schematic structural view of the tooling transfer mechanism in Fig. 19;
  • this embodiment discloses a bending and pressure holding unit, which includes a first bending device set at the first bending station 1b, a second bending device set at the second bending station 1c device, the pressing auxiliary bending device 3 corresponding to the first bending station 1b and the second bending station 1c, and the holding device 4 arranged at the holding station 1d;
  • the first bending device is used to simultaneously bend the parts to be bent of multiple products (four products shown in the figure) in the first direction
  • the second bending device is used to bend the parts that have been completed in the first direction.
  • the bending parts of the four bent products continue to be bent in the second direction at the same time, and the first direction is perpendicular to the second direction; the pressure holding device 4 is used to simultaneously bend the bending parts of all products that have completed the second direction Carry out the pressure keeping, the state of the bending part after the pressure keeping can be seen in Figure 17.
  • the first bending device is one of the vertical bending device 1 and the horizontal bending device 2
  • the second bending device is the other of the vertical bending device 1 and the horizontal bending device 2
  • the first direction and the second direction can be determined according to product and process requirements.
  • the first direction is the vertical direction
  • the second direction is the horizontal direction.
  • the vertical bending device 1 in this embodiment includes a first frame 11, a mounting plate 12 vertically slidably mounted on the first frame 11 by means of a slide rail slider structure 17 1.
  • the four vertical bending structures 14 and the adjustment structure 15 for independently adjusting the posture of the bending parts in the four vertical bending structures 14.
  • the vertical driving member 13 can drive the vertical bending structure 14 to bend the product. Do 1-2 bending operations on the lower part (horizontal state).
  • the vertical bending structure 14 includes a mounting base 141 , a vertical bending head 142 (that is, a bending component) and a horizontally extending first elastic reset member 143 (cylindrical spring).
  • the vertical bending head 142 includes a vertical part 1421 and a horizontal part 1422 connected;
  • the first rolling member 1423 preferably a roller or a bearing, which changes the sliding friction when in contact with the product into rolling friction, can prevent the vertical bending head 142 from scratching the appearance of the product during bending).
  • the first elastic reset member 143 is sandwiched between the vertical portion 1421 of the vertical bending head 142 and the mounting plate 12 for self-resetting after posture adjustment; in order to prevent posture adjustment, the first elastic reset member 143
  • the vertical part 1421 of the vertical bending head 142 and the mounting plate 12 are provided with receiving grooves adapted to the end of the first elastic reset member 143 .
  • the specific implementation structure of the rotatable connection between the vertical part 1421 and the mounting base 141 is as follows: the mounting base 141 is provided with a horizontally extending pivot structure 1411, and the vertical part 1421 of the vertical bending head 142 is arranged at two intervals.
  • the bearing 1412 is rotatably mounted on the pivot structure 1411 (preferably a bolt with a light section and a threaded section); a bearing adjustment ring 1413 is provided between one of the bearings 1412 and the mounting seat 141, and a bearing adjustment ring 1413 is provided between the two bearings 1412.
  • the ring 1414 and the end of the pivot structure 1411 away from the mounting seat 141 form a limiting portion (bolt head), and the other bearing 1412 abuts against the limiting portion.
  • the adjustment structure 15 includes an adjustment plate 151 connected at least to the first and last mounting seats 141 (preferably, the adjustment plate 151 is connected to all the mounting seats 141), and the adjustment plate 151 is screwed with a vertical bending head.
  • the adjustment member 152 one-to-one corresponding adjustment member 152 (preferably bolt), the adjustment member 152 abuts against the side of the vertical bending head 142 (vertical part 1421) away from the mounting plate 12, and is used to make the vertical bending head 142 rotate around The center rotates in the vertical plane to achieve posture adjustment, which can meet the bending accuracy, position and consistency requirements of four products bent at the same time.
  • the limit locking structure 16 that limits and locks the vertical bending head 142; the limit locking structure 16 includes a limit seat 161, and the limit seat 161 is provided with a limit channel for extending the vertical bending head 142. Slot 162, locking member 163 (locking bolt) is screwed on the limiting seat 161; to lock.
  • the mounting seat 141 in the vertical bending structure 14 is installed in the corresponding positioning groove.
  • a limit block 18 is provided on the top of the first frame 11, and a hydraulic buffer 181 and a limit screw 182 for cooperating with the mounting plate 12 are provided on the limit block 18;
  • a tension spring 19 extending vertically is arranged between the bottoms of the first frame 11 .
  • the horizontal bending device 2 in this embodiment includes a second frame 21, a backing plate 211 arranged on the second frame 21 and four spacers arranged on the backing plate
  • the horizontal driving part 22 on the top of 211; the power part of the horizontal driving part 22 is provided with a substrate 221, and a horizontal bending structure 23 with adjustable posture is provided on the substrate 221.
  • the horizontal driving member 22 can drive the bending part of the product by the horizontal bending structure 23 (currently in an approximately vertical state) Perform 1-2 bending operations. Driven by four independent horizontal driving parts 22, the stroke of the horizontal bending structure 23 can be adjusted individually, increasing the versatility.
  • the horizontal bending structure 23 includes a base 231, on which a horizontal bending head 232 is rotatably installed, and a vertically extending second elastic return member 233 is interposed between the horizontal bending head 232 and the base plate 221;
  • a second rolling member 234 preferably a roller or a bearing
  • the base 231 includes a vertical plate 2311 and an adjustment plate 2312 arranged on the top of the vertical plate 2311 and above the horizontal bending head 232; , the adjustment assembly 24 abuts against the horizontal bending head 232, and is used to make the horizontal bending head 232 rotate around the rotation center in the vertical plane to realize posture adjustment, which can meet the bending accuracy and position of bending four products at the same time degree requirements.
  • the adjustment assembly 24 in this embodiment includes a micrometer knob 241 arranged on the adjustment plate 2312 for fine adjustment, and the adjustment end of the micrometer knob 241 abuts against the horizontal bending head 232; Adjusting screw 242 for coarse adjustment.
  • the specific implementation structure of the rotational connection between the horizontal bending head 232 and the vertical plate 2311 is as follows: the vertical plate 2311 of the base 231 is provided with a pivot 235, and the horizontal bending head 232 is rotatably mounted on the pivot 235; Both ends of 235 are provided with axial limit structures 236 respectively abutted against the horizontal bending head 232 and the vertical plate 2311 , and the pivot 235 between the horizontal bending head 232 and the vertical plate 2311 is provided with an annular spacer 237 .
  • a positioning groove (not shown in the figure) is provided on the base plate 221 in this embodiment, and the base 231 is installed in the positioning groove.
  • the top of the base plate 221 and the bottom of the horizontal bending head 232 are equipped with accommodating parts that are adapted to the ends of the second elastic reset member 233. groove.
  • the press-down auxiliary bending device 3 in this embodiment is used to fix the non-bending part of the product, and prevent the product from moving during bending to affect the bending accuracy and position ;
  • Pressing mechanism 33 comprises the mounting frame 331 that is vertically slidably installed on the connecting plate 32, is arranged on the connecting plate 32 and is used for driving the drive structure 334 (preferred cylinder or electric cylinder, by means of the vertical motion of driving mounting frame 331)
  • the floating joint is connected to the mounting frame 331 ) and the floating head assembly 332 arranged on the mounting frame 331 .
  • a first linear bearing 321 is added on the connecting plate 32 in this embodiment, and a guide shaft 333 is arranged on the mounting frame 331.
  • the guide shaft 333 is connected to the first
  • the linear bearing 321 is connected with a sliding fit.
  • the mounting frame 331 includes a bottom plate 3311 connected to the driving structure 334, four U-shaped seats 3312 arranged at intervals on the bottom plate 3311 with openings facing downwards, and a second straight line arranged on the bottom plate at the opening of the U-shaped seats 3312.
  • the floating head assembly 332 includes a connecting shaft 3321 which is slidingly fitted with the second linear bearing 3313, a spring 3322 sleeved on the connecting shaft 3321, and a pressing head 3323 arranged at the bottom end of the connecting shaft 3321; the U-shaped seat at one end of the spring 3322 3312, and the other end abuts against the annular limiter on the connecting shaft 3321.
  • the spring 3322 in the floating pressure head assembly 332 can prevent the pressure head 3323 from being in hard contact with the product and damaging the product when the pressure head is pressed down.
  • the connecting plate 32 of this embodiment is integrated with the first tooling code scanning component 34, which is used to bind the tooling code on the tooling before bending and upload it to the system, so as to facilitate the traceability of the data after bending.
  • the first tooling code scanning component 34 is integrated with the first tooling code scanning component 34.
  • Existing technologies can be used, and details are not repeated here.
  • the pressure maintaining device 4 in this embodiment includes a support 41, a lifting electric cylinder 42 arranged on the support 41, a connecting seat 43 connected to the power part of the lifting electric cylinder 42, and four intervals arranged on the connecting seat.
  • the above-mentioned bending and pressure-holding unit can bend multiple products at the same time, which improves production efficiency and reduces production costs.
  • the auxiliary bending device 3 is pressed down to hold down the products, which can prevent the products from being damaged during bending.
  • the movement affects the bending effect of the product; moreover, the bending in two vertical directions is carried out step by step, and then the pressure is maintained, which is easier to meet the high requirements of height, position and consistency after bending, ensuring the product yield rate.
  • this embodiment discloses a product bending production line, including a multi-station turntable device 7 (solves the problem of many bending stations caused by horizontal arrangement, and simplifies the structure At the same time, it can also meet the beat requirements of the product process), the product conveying device 8, the product feeding device 5, the product unloading device 6 and the bending and pressure-holding unit disclosed in the first embodiment above.
  • the surrounding of the multi-station turntable device 7 is successively provided with a loading station 1a, a first bending station 1b, a second bending station 1c, a holding station 1d, a blanking station 1e, a first The empty station 1f, the optical fiber detection station 1g and the second empty station 1k have a total of eight stations; the multi-station turntable device 7 is used to drive a plurality of transfer tooling 74 for loading products to circulate among the eight stations in sequence Circulation (counterclockwise); so that the products are sequentially processed among the eight stations.
  • the product conveying device 8 is used to convey the product to be bent to the feeding connection station (to connect with the product feeding device 5), and is also used to transfer the unloading connection station (to connect with the product feeding device 6) The product after pressure keeping is conveyed to the next station.
  • the product feeding device 5 is used to transfer the products on the feeding joint station to the circulation tool 74 that has been transferred to the feeding station 1a; the product unloading device 6 is used to transfer the product to the transfer tooling 74 of the feeding station 1e 74, the product that has completed the pressure-holding is transported to the blanking and connecting station.
  • the product feeding device 5 and the product feeding device 6 in this embodiment have the same structure and different positions;
  • Column 51 the horizontal transfer structure 52 (preferred electric cylinder) that is arranged on the column 51, the lift structure 53 that is arranged on the horizontal transfer structure 52, the four product pick-and-place structures 54 that are arranged on the lift structure 53 and are used to adjust four
  • a variable spacing adjustment mechanism 55 for the spacing between product pick-and-place structures 54.
  • the product pick-and-place structure 54 is used to pick up the product and drive the product to rotate to adjust the angle of the product. Specifically, it includes a rotating motor 541 , a shaft sleeve 542 , a sliding shaft, a floating spring 543 , a nozzle mounting base 544 and a nozzle 545 .
  • One end of the shaft sleeve 542 is fixedly connected with the rotating shaft of the rotary motor 541, one end of the sliding shaft is slidingly fitted with the shaft sleeve 542, and the other end is connected with the suction nozzle mounting seat 544, and the suction nozzle mounting seat 544 is equipped with a suction nozzle 545; a floating spring 543 One end abuts against the shaft sleeve 542 , and the other end abuts against the nozzle mounting seat 544 .
  • variable pitch adjustment mechanism 55 includes a connecting plate 551 arranged on the power part of the lifting structure 53.
  • the connecting plate 551 is provided with a horizontal reciprocating structure 553 (electric push rod) and four horizontally arranged and connected to the product.
  • the slides 552 corresponding to the structure 54 one by one; the slide 552 at the end is fixedly connected with the connecting plate 551, and the rest of the slides 552 are slidably connected with the connecting plate 551 by means of the guide rail assembly 554, and the power part of the horizontal reciprocating structure 553 and the slide at the head end
  • the seats 552 are connected and movably connected between two adjacent sliding seats 552 ; the product pick-and-place structure 54 is arranged on the corresponding sliding seats 552 .
  • the movable connection form is: the sliding seat 552 is provided with a protrusion 5521, and the adjacent sliding seat 552 is provided with a sliding groove 5522, and the protrusion 5521 is located in the sliding groove 5522.
  • the principle of linkage after the contact of the groove walls realizes the pushing or pulling of one sliding seat 552 to the adjacent sliding seat 552, thereby realizing the distance adjustment.
  • the multi-station turntable device 7 in this embodiment includes a base 71, a rotary drive member 72 (DD motor) arranged on the base 71 and a power part connected to the rotary drive member 72
  • the rotating disk 73; the rotating disk 73 is provided with eight tooling installation positions corresponding to the stations one by one, and the circulating tooling 74 is installed on the tooling mounting position (in order to realize the quick replacement of the circulating tooling 74, the circulating tooling 74 and the rotating disk 73 can be Add tooling adjustment plate).
  • the turntable 73 drives the eight circulating tooling 74 to circulate among the eight stations.
  • the jacking mechanism 75 is located below the turntable 73 and specifically includes a support frame, a lifting cylinder arranged on the support frame, and a jacking column arranged at the power part of the lifting cylinder.
  • the circulation tooling 74 in the present embodiment is provided with the product clamping structure 741 that is used for clamping the product, and this product clamping structure 741 comprises the dynamic clamping block 744 of rotating installation, the static clamping block 745 of fixed installation, one end is connected with the dynamic clamping block 741.
  • the product bending production line of this embodiment also adds two tooling control mechanisms 76 corresponding to the loading station 1a and the unloading station 1e one by one.
  • the tooling control mechanism 76 is located on the turntable Below 73, it is used to control the movement of the dynamic clamping block 744 in the product clamping structure 741 to the direction away from the static clamping block 745 to loosen the product for loading and unloading.
  • the product conveying device 8 in this embodiment includes a main conveyor belt mechanism 81 , a secondary conveyor belt mechanism 82 , two tool positioning jacking mechanisms 83 and two tool transfer mechanisms 84 .
  • the main conveyor belt mechanism 81 and the secondary conveyor belt mechanism 82 are arranged side by side, and the conveying direction is opposite; the two tool positioning jacking mechanisms 83 are arranged from upstream to downstream along the conveying direction of the main conveyor belt mechanism 81, corresponding to the feeding joint stations respectively.
  • two tooling positioning jacking mechanisms 83 are used to position and jack up the loading tooling or unloading tooling so that it is separated from the conveyor belt of the main conveyor belt mechanism 81, and are used to place the loading tooling or unloading tooling
  • the product clamping structure (not shown in the figure) on the top is opened to facilitate product loading or unloading
  • two tooling transfer mechanisms 84 are located between the loading joint station and the unloading joint station; the main conveyor belt mechanism 81 It is used to transport the feeding tooling carrying the products to be bent, and one of the tooling transfer mechanisms 84 is used to jack up the empty feeding tooling (the product has been taken away by the product feeding device 5) and transfer it to the conveyor belt mechanism 82
  • a second tooling code scanning component 85 is provided on the main conveyor belt mechanism 81 corresponding to the feeding joint station.
  • the main conveyor belt mechanism 81, the secondary conveyor belt mechanism 82 and the tooling positioning jacking mechanism 83 can directly adopt the prior art; The optical fiber detection component will not be described in detail here.
  • the tooling transfer mechanism 84 in this embodiment includes an installation frame 841, the main conveyor belt mechanism 81 and the slave conveyor belt mechanism 82 are located in the installation frame 841, and the top of the installation frame 841 is provided with a transition transfer plate 842, the transition The transfer plate 842 is located above the main conveyor belt mechanism 81 and the secondary conveyor belt mechanism 82; two tool jacking mechanisms 844 corresponding to the main conveyor belt mechanism 81 and the secondary conveyor belt mechanism 82 are installed on the installation frame 841, and the transition transfer transfer The plate 842 is provided with an escape port 843 compatible with the tooling jacking mechanism 844; the transitional transfer plate 842 is provided with a horizontal push-pull structure, which is used to transfer the loading or unloading tooling through a tooling jacking mechanism 844 The plate 842 is pushed or pulled to another tool jacking mechanism 844 .
  • the tool jacking mechanism 844 includes a mounting bracket, a lifting cylinder disposed on the mounting bracket, and a supporting plate disposed on the lifting cylinder.
  • the horizontal push-pull structure includes a support plate arranged on the transition transfer plate 842 , a horizontal transfer member 845 (preferably an air cylinder or an electric cylinder) installed on the support plate, and a push-pull plate 846 arranged on the horizontal transfer member 845 .
  • the tooling jacking mechanism 844 When the loading tooling or unloading tooling is in place, the tooling jacking mechanism 844 will lift the loading tooling or unloading tooling away from the current conveyor belt, and the horizontal push-pull structure pushes or pulls the lifted loading tooling or unloading tooling to the Another frock lifting mechanism 844, and then the frock lifting mechanism 844 resets downwards, and the loading frock or the unloading frock is placed on another conveyor belt again.
  • the loading tooling carrying the products to be bent is transported to the tooling positioning and jacking mechanism 83 located at the feeding joint station through the main conveyor belt mechanism 81; the tooling positioning jacking mechanism 83 positions and jacks up the feeding tooling to separate it from the main conveyor
  • the conveyor belt with the mechanism 81 and the product clamping structure on the feeding tooling are opened to facilitate product feeding, and the second tooling code scanning component 85 scans the tooling code and uploads it to the system.
  • the product feeding device 5 moves, the product pick-and-place structure 54 absorbs the product on the jacked-up feeding tooling, and the horizontal handling structure 52 carries the product pick-and-place structure 54 carrying the product.
  • the product The pick-and-place structure 54 places the product on the circulation tooling 74 on the multi-station turntable device 7 (turntable 73) (before the product is placed, the tooling control mechanism 76 has controlled the product clamping structure 741 to open, after placing, the product clamping structure 741 clamping product).
  • the empty feeding frock is delivered to the frock transfer mechanism 84, it is transferred to the slave conveyor belt mechanism 82.
  • the turntable 73 drives the circulation tooling 74 carrying the product to continue to flow to the first bending station 1b; the first tooling scanning component 34 scans the tooling code and uploads it to the system, presses down the auxiliary bending device 3 to act, and presses down the non-folding position of the product
  • the vertical bending device 1 located below the product to be bent acts, driven by the vertical drive 13, the vertical bending structure 14 vertically bends the product to be bent. For bending, 1-2 vertical bends can be performed as needed.
  • the turntable 73 drives the transfer tooling 74 carrying the vertically bent product to continue to transfer to the second bending station 1c (press down the auxiliary bending device 3 to reset during transfer), and press down the auxiliary bending device 3 to move again and press down.
  • the non-bending part of the product then the horizontal bending device 2 located on the side of the approximately vertical bending part acts, and the horizontal driving part 22 drives the horizontal bending structure 23 to perform horizontal bending on the bending part that has completed the vertical bending Bend, perform 1-2 horizontal bends as needed.
  • the turntable 73 drives the circulation tool 74 to transfer to the pressure holding station 1d, the pressure holding device 4 operates, and the lifting electric cylinder 42 drives the pressure holding pressure head 44 to descend, and holds the pressure on the bending part that has completed the horizontal bending to ensure the bending height and position degree.
  • the turntable 73 drives the circulation tool 74 to transfer to the blanking station 1e, and the product unloading device 6 takes away the product on the circulation tool 74 (the tool control mechanism 76 controls the product clamping structure 741 to open before the product is taken away) ), then carry out; the empty blanking frock at this time is transferred to the main conveyor belt mechanism 81 when it is conveyed from the conveyor belt mechanism 82 and delivered to the frock transfer mechanism 84, and is transported to the jointing work with the blanking material through the main conveyor belt mechanism 81
  • the tooling positioning jacking mechanism 83 positions and jacks up the blanking tooling so that it is separated from the conveyor belt of the main conveyor belt mechanism 81, and the product clamping structure on the blanking tooling is opened, It is convenient for product unloading; the product unloading device 6 places the products transported to the unloading joint station on the unloading tooling; then the main conveyor belt mechanism
  • the turntable 73 drives the transfer tooling 74 of the removed product to continue to transfer to the first empty station 1f, continue to transfer to the optical fiber detection station 1g, detect whether the product in the transfer tooling 74 has been taken away, and continue to transfer to the second empty station 1k , to complete a loading, bending, holding pressure, unloading, monitoring cycle
  • the bending pressure holding unit in the present invention can bend multiple products at the same time, which improves the production efficiency and reduces the production cost.
  • the auxiliary bending device 3 is pressed down to hold down the products, which can prevent the bending during bending.
  • the product movement affects the bending effect of the product; moreover, the bending in two vertical directions is carried out step by step in sequence, and then the pressure is maintained, which is easier to ensure the height, position and consistency of the product after bending, ensuring the product's yield.
  • both the vertical bending device 1 and the horizontal bending device 2 can be adjusted according to the needs, which increases the versatility.
  • the multi-station turntable device 7 is used in the product production line, which solves the problem of many bending stations caused by horizontal arrangement, simplifies the structure, saves space, and meets the rhythm requirements of the product process; in addition, Also increase the function of automatic switching tool on the product conveying device 8, can further improve ecological production efficiency.
  • the present invention can meet high requirements such as height, position and consistency after bending, and ensure the yield rate of products; and it has high production efficiency and strong versatility.

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Abstract

本发明公开了一种折弯保压单元及产品折弯生产线，包括设于第一折弯工位的第一折弯装置、设于第二折弯工位的第二折弯装置、与第一、第二折弯工位均对应的下压辅助折弯装置和设于保压工位的保压装置；在下压辅助折弯装置的辅助下，第一折弯装置对多个产品的待折弯部同时进行第一方向折弯，第二折弯装置对多个已完成第一方向折弯的折弯部继续同时进行第二方向折弯，第一、第二方向垂直；保压装置对所有已完成第二方向折弯的折弯部同时进行保压。产品折弯生产线包括多工位转盘装置、产品输送装置、产品上料装置、产品下料装置及折弯保压单元。本发明可满足折弯后的高度、位置度、一致性等较高要求，确保了产品的良率；且生产效率高、通用性强。

Description

一种折弯保压单元及产品折弯生产线 技术领域
本发明属于产品折弯技术领域，尤其涉及一种折弯保压单元及产品组装设备。
背景技术
在微电声产品的壳体组装生产过程中，因产品功能的要求，通常会在电声元件上安装有导通弹片，其一端电连接电声元件的内部电子元器件，另一端电连接外部电子电路。按产品工艺要求，与外部电子电路电连接的一端，需要将导通弹片进行折弯。利用导通弹片折弯后的接触部(由于受到挤压而具有一定的弹性势能)实现与外部电子电路的紧密电连接。为保证与外部电子电路有良好的接触，对导通弹片折弯后的高度、位置度有较高的要求。
目前的折弯装置的稳定性差无法满足导通弹片折弯后的高度、位置度、一致性等较高要求，影响了产品的良率；且目前的折弯装置只对单产品的折弯，虽然影响折弯质量的因数要少很多，但效率低、产能小、成本高，不能满足大批量工业生产的需要。另外目前的折弯生产线水平布置，结构复杂、占用空间大且无法满足产品工艺的节拍要求。
发明内容
旨在克服上述现有技术中存在的不足，本发明解决的技术问题是，提供了一种折弯保压单元及产品折弯生产线，效率高且可确保产品折弯后的高度、位置度及一致性，提高了产品的良率。
为解决上述现有技术中的存在的至少之一处技术问题，本发明实施例提供了一种折弯保压单元，包括设置于第一折弯工位的第一折弯装置、设置于第二折弯工位的第二折弯装置、与所述第一折弯工位和所述第二折弯工位均对应的下压辅助折弯装置和设置于保压工位的保压装置；
在所述下压辅助折弯装置的辅助下，所述第一折弯装置用于对多个产品的待折弯部同时进行第一方向折弯，所述第二折弯装置用于对多个已完成第一方 向折弯的折弯部同时进行第二方向折弯，所述第一方向与所述第二方向垂直；
所述保压装置用于对所有已完成第二方向折弯的所述折弯部同时进行保压。
进一步，所述第一折弯装置为竖直折弯装置和水平折弯装置其中的一个，所述第二折弯装置为竖直折弯装置和水平折弯装置其中的另一个。
进一步，所述竖直折弯装置包括第一机架、竖向滑动安装在所述第一机架上的安装板、安装在所述第一机架上用于驱动所述安装板运动的竖向驱动件、安装在所述安装板上的多个竖直折弯结构以及用于对多个所述竖直折弯结构中的折弯部件进行独立位姿调整的调整结构。
进一步，所述竖直折弯结构包括安装座、转动安装在所述安装座上的竖直折弯头以及水平延伸的第一弹性复位件；所述第一弹性复位件夹设在所述竖直折弯头与所述安装板之间；所述竖直折弯头的一端设有用于与所述产品的待折弯部接触的第一滚动件；
所述调整结构包括至少与首尾两个所述安装座连接的调整板，所述调整板上螺装有与所述竖直折弯头一一对应的调节件，所述调节件与所述竖直折弯头背离所述安装板的一侧抵接、用于使所述竖直折弯头转动以实现位姿调整。
进一步，所述第一机架的顶部设有限位挡块，所述限位挡块上设有液压缓冲器；
所述安装板的下端和所述第一机架的底部之间设置有竖向延伸的拉簧。
进一步，所述水平折弯装置包括第二机架和多个间隔设置于所述第二机架的顶部的水平驱动件；所述水平驱动件上设有位姿可调的水平折弯结构。
进一步，所述水平折弯结构包括基座，所述基座上转动安装有水平折弯头，所述水平折弯头与所述水平驱动件的动力部之间夹设有竖向延伸的第二弹性复位件，所述水平折弯头的一端设有用于与所述产品的折弯部接触的第二滚动件；
所述水平折弯头上方的所述基座上设有调整组件，所述调整组件与所述水平折弯头抵接、用于使所述水平折弯头转动以实现位姿调整。
进一步，所述下压辅助折弯装置包括支座，所述支座的顶部设有连接板，所述连接板上设有两个与所述第一折弯工位和所述第二折弯工位一一对应的下 压机构；
所述下压机构包括竖向滑动安装在所述连接板上的安装架、设置于所述连接板上用于驱动所述安装架竖向运动的驱动结构以及设置于所述安装架上的浮动压头组件。
本发明实施例还提供了一种产品折弯生产线，包括多工位转盘装置、产品输送装置、产品上料装置、产品下料装置以及权利要求1-8任一项所述的折弯保压单元；
所述多工位转盘装置的周围至少依次环设有上料工位、所述第一折弯工位、所述第二折弯工位、所述保压工位和下料工位；所述多工位转盘装置用于带动多个用于装载所述产品的流转工装在多个所述工位间依次循环流转；
所述产品输送装置用于将待折弯的所述产品输送至上料衔接工位，还用于将下料衔接工位上经保压后的所述产品输送至下一工位；
所述产品上料装置用于将所述上料衔接工位上的所述产品搬运至已流转到所述上料工位的所述流转工装上；
所述产品下料装置用于将流转至所述下料工位的所述流转工装上已完成保压的所述产品搬运至所述下料衔接工位。
进一步，所述多工位转盘装置包括底座、设置在所述底座上的旋转驱动件以及其与所述旋转驱动件的动力部连接的转盘；所述转盘上设有多个与所述工位一一对应的工装安装位，所述工装安装位上安装有所述流转工装。
进一步，所述产品折弯生产线还包括两个上顶机构和两个工装控制机构；
两个所述上顶机构与所述第一折弯工位和所述第二折弯工位一一对应，且位于所述转盘的下方、用于防止所述转盘因所述下压辅助折弯装置下压而变形；
两个所述工装控制机构与所述上料工位和所述下料工位一一对应，且位于所述转盘下方、用于控制所述流转工装上的产品夹紧结构动作以便于进行上下料。
进一步，所述产品上料装置与所述产品下料装置相同；均包括立柱、设置于所述立柱上的水平搬运结构、设置于所述水平搬运结构上的升降结构、设置 于所述升降结构上的多个产品取放结构以及用于调整多个所述产品取放结构之间间距的变间距调整机构；
所述产品取放结构用于拾取所述产品并带动所述产品转动、以调整所述产品的角度。
进一步，所述变间距调整机构包括设置于所述升降结构上的连接板，所述连接板上设有水平往复运动结构和多个沿水平方向排布且与所述产品取放结构一一对应的滑座，
末端的所述滑座与所述连接板固定连接，其余所述滑座与所述连接板滑动连接，所述水平往复运动结构的动力部与首端的所述滑座连接且相邻两个所述滑座之间活动连接；在所述水平往复运动结构的带动下，所有所述滑座相互贴合或分离、以调整相邻所述滑座之间的间距；所述产品取放结构设置于相应的所述滑座上。
进一步，所述产品输送装置包括主输送带机构、从输送带机构、两个工装定位顶起机构以及两个工装转移机构；
所述主输送带机构和所述从输送带机构并排设置且输送方向相反；
两个所述工装定位顶起机构沿所述主输送带机构的输送方向由上游到下游布置，分别对应所述上料衔接工位和所述下料衔接工位；两个所述工装定位顶起机构用于定位并顶起上料工装或下料工装使其脱离所述主输送带机构、便于产品上料或下料；
两个所述工装转移机构位于所述上料衔接工位和所述下料衔接工位之间；
所述主输送带机构用于输送承载待折弯的所述产品的所述上料工装，其中一个所述工装转移机构用于将空的所述上料工装顶起并转移到所述从输送带机构上；
所述从输送带机构用于输送空的所述下料工装，另一个所述工装转移机构用于将空的所述下料工装顶起并转移到所述主输送带机构，所述主输送带机构用于对承载保压后的所述产品的所述下料工装继续进行输送。
进一步，所述工装转移机构包括安装框架，所述安装框架的顶部设有过渡 转移板，所述过渡转移板位于所述主输送带机构和所述从输送带机构的上方；
所述安装框架上安装有两个与所述主输送带机构和所述从输送带机构一一对应的工装顶起机构，所述过渡转移板上设有与所述工装顶起机构相适配的避让口；
所述过渡转移板上设有水平推拉结构，用于将所述上料工装或所述下料工装由一所述工装顶起机构推或拉到另一所述工装顶起机构。
由于采用了上述技术方案，本发明取得的有益效果如下：
本发明中的折弯保压单元，包括设置于第一折弯工位的第一折弯装置、设置于第二折弯工位的第二折弯装置、与第一折弯工位和第二折弯工位均对应的下压辅助折弯装置和设置于保压工位的保压装置；在下压辅助折弯装置的辅助下，第一折弯装置用于对多个产品的待折弯部同时进行第一方向折弯，第二折弯装置用于对多个已完成第一方向折弯的折弯部同时进行第二方向折弯，第一方向与第二方向垂直；保压装置用于对所有已完成第二方向折弯的折弯部同时进行保压。产品折弯生产线包括多工位转盘装置、产品输送装置、产品上料装置、产品下料装置以及折弯保压单元。
首先，本发明的折弯保压单元可同时对多个产品进行折弯，提高生产效率，降低了生产成本，其次，在折弯时下压辅助折弯装置压住产品，可防止折弯时，产品窜动影响产品折弯的效果；再者，依次分步进行两个垂直方向的折弯，然后保压，较容易满足折弯后的高度、位置度及一致性等较高要求，保证了产品的良率。采用多工位转盘装置可节省空间，满足产品工艺的节拍要求。
综上所述，本发明可满足折弯后的高度、位置度、一致性等较高要求，确保了产品的良率；且生产效率高、通用性强。
附图说明
图1是本发明折弯保压单元的结构示意图；
图2是图1中竖直折弯装置的结构示意图；
图3是图2中安装板及其上部件的结构示意图；
图4是图3中竖直折弯结构和调整结构的结构示意图；
图5是图4中安装座和竖直折弯头转动连接处的结构剖视图；
图6是图1中水平折弯装置的结构示意图；
图7是图6中水平折弯结构、水平驱动件的安装结构示意图；
图8是图7中基座和水平折弯头转动连接处的结构剖视图；
图9是图1中下压辅助折弯装置的结构示意图；
图10是图9中下压机构的结构分解图；
图11是图1中保压装置的结构示意图；
图12是本发明产品折弯生产线的结构示意图；
图13是图12的俯视图；
图14是图12中产品上料装置的结构示意图；
图15是图14中产品取放结构和变间距调整机构的结构分解图；
图16是图15中变间距调整机构另一状态下的结构示意图；
图17是图12中多工位转盘装置的结构示意图；
图18是图17中流转工装的部分结构示意图；
图19是图12中产品输送装置的结构示意图；
图20是图19的俯视图；
图21是图19中工装转移机构的结构示意图；
图中：1-竖直折弯装置，11-第一机架，12-安装板，13-竖向驱动件，14-竖直折弯结构，141-安装座，1411-枢轴结构，1412-轴承，1413-轴承调整环，1414-轴承调整圈，142-竖直折弯头，1421-竖直部，1422-横向部，1423-第一滚动件，143-第一弹性复位件，15-调整结构，151-调整板，152-调节件，16-限位锁定结构，161-限位座，162-限位通槽，163-锁紧件，17-滑轨滑块结构，18-限位挡块，181-液压缓冲器，182-限位螺钉，19-拉簧，2-水平折弯装置，21-第二机架，211-垫板，22-水平驱动件，221-基板，23-水平折弯结构，231-基座，2311-立板，2312-调整板，232-水平折弯头，233-第二弹性复位件，234-第二滚动件，235-枢轴，236-轴向限位结构，237-环形间隔部，24-调整组件，241-千分尺旋钮，242-调整螺栓，3-下压辅助折弯装置，31-支座，32-连接板， 321-第一直线轴承，33-下压机构，331-安装架，3311-底板，3312-U型座，3313-第二直线轴承，332-浮动压头组件，3321-连接轴，3322-弹簧，3323-压头，333-导向轴，334-驱动结构，34-第一工装扫码组件，4-保压装置，41-支架，42-升降电缸，43-连接座，44-保压压头，5-产品上料装置，51-立柱，52-水平搬运结构，53-升降结构，54-产品取放结构，541-旋转电机，542-轴套，543-浮动弹簧，544-吸嘴安装座，545-吸嘴，55-变间距调整机构，551-连接板，552-滑座，5521-凸块，5522-滑槽，553-水平往复运动结构，554-导轨组件，6-产品下料装置，7-多工位转盘装置，71-底座，72-旋转驱动件，73-转盘，74-流转工装，741-产品夹紧结构，742-横向弹簧，743-竖向弹簧，744-动夹紧块，745-静夹紧块，75-上顶机构，76-工装控制机构，8-产品输送装置，81-主输送带机构，82-从输送带机构，83-工装定位顶起机构，84-工装转移机构，841-安装框架，842-过渡转移板，843-避让口，844-工装顶起机构，845-水平转移件，846-推拉板，85-第二工装扫码组件，1a-上料工位，1b-第一折弯工位，1c-第二折弯工位，1d-保压工位，1e-下料工位，1f-第一空工位，1g-光纤检测工位，1k-第二空工位。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
实施例一：
由图1所示，本实施例公开了一种折弯保压单元，包括设置于第一折弯工位1b的第一折弯装置、设置于第二折弯工位1c的第二折弯装置、与第一折弯工位1b和第二折弯工位1c均对应的下压辅助折弯装置3和设置于保压工位1d的保压装置4；在下压辅助折弯装置3的辅助下，第一折弯装置用于对多个产品(附图所示为四个产品)的待折弯部同时进行第一方向折弯，第二折弯装置用于对已完成第一方向折弯的四个产品的折弯部继续同时进行第二方向折弯，第一方向与第二方向垂直；保压装置4用于对已完成第二方向折弯的所有产品 的折弯部同时进行保压，保压后折弯部的状态可参见图17。
其中，第一折弯装置为竖直折弯装置1和水平折弯装置2其中的一个，第二折弯装置为竖直折弯装置1和水平折弯装置2其中的另一个。可根据产品以及工艺需要确定第一方向和第二方向，本实施例中，第一方向为竖直方向，第二方向为水平方向。
由图2至图5共同所示，本实施例中的竖直折弯装置1包括第一机架11、借助滑轨滑块结构17竖向滑动安装在第一机架11上的安装板12、安装在第一机架11上用于驱动安装板12运动的竖向驱动件13(优选气缸或电缸，竖向驱动件13与安装板12借助浮动接头连接)、安装在安装板12上的四个竖直折弯结构14以及用于对四个竖直折弯结构14中的折弯部件进行独立位姿调整的调整结构15。为了确保折弯部竖直折弯后的状态，在下压辅助折弯装置3(参见图1)的下压辅助下，竖向驱动件13可驱动竖直折弯结构14对产品的待折弯部(水平状态)进行1-2次折弯操作。
本实施例中，竖直折弯结构14包括安装座141、竖直折弯头142(即折弯部件)以及水平延伸的第一弹性复位件143(柱形弹簧)。其中，竖直折弯头142包括相连接的竖直部1421和横向部1422；竖直部1421与安装座141转动连接，横向部1422的一端设有用于折弯时与产品上的待折弯部接触的第一滚动件1423(优选滚轮或轴承，将与产品接触时的滑动摩擦变为滚动摩擦，可避免折弯时竖直折弯头142划伤产品的外观)。第一弹性复位件143夹设在竖直折弯头142的竖直部1421与安装板12之间，用于位姿调整后的自复位；为了防止位姿调整时，第一弹性复位件143发生扭曲变形，本实施例在竖直折弯头142的竖直部1421和安装板12上均设置了与第一弹性复位件143的端部适配的容纳槽。
本实施例中竖直部1421与安装座141转动连接的具体实施结构为：安装座141上设有水平延伸的枢轴结构1411，竖直折弯头142的竖直部1421借助两个间隔设置的轴承1412转动安装在枢轴结构1411(优选具有光段和螺纹段的螺栓)上；其中一个轴承1412与安装座141之间设置有轴承调整环1413，两个 轴承1412之间设有轴承调整圈1414，枢轴结构1411远离安装座141的一端成型有限位部(螺栓头部)，另一个轴承1412与限位部抵接。
本实施例中，调整结构15包括至少与首尾两个安装座141连接的调整板151(优选地，调整板151与所有安装座141连接)，调整板151上螺装有与竖直折弯头142一一对应的调节件152(优选螺栓)，调节件152与竖直折弯头142(竖直部1421)背离安装板12的一侧抵接、用于使竖直折弯头142绕转动中心在竖直面内转动以实现位姿调整，可满足同时折弯的四个产品的折弯精度、位置度及一致性要求。
在位姿调整时，为了对竖直折弯头142的转动幅度进行限位，同时为了保证调整后的稳定性；本实施例对上述结构作了进一步优化；在安装座141顶部设置了用于对竖直折弯头142进行限位及锁定的限位锁定结构16；限位锁定结构16包括限位座161，限位座161上设有供竖直折弯头142伸出的限位通槽162，限位座161上螺装有锁紧件163(锁紧螺栓)；锁紧件163的一端伸入限位通槽162内并与对竖直折弯头142的竖直部1421抵接以进行锁定。
为了保证竖直折弯结构14与产品的相对位置、减少影响折弯精度、位置度及一致性的因素；本实施例在安装板12上等间隔设有四个定位凹槽(图中未示出)，竖直折弯结构14中的安装座141安装在相应定位凹槽内。
为了确保在前进临界位和回退临界位时，竖直折弯结构14的力度和速度，防止速度过快、冲击力过大对产品或装置自身造成损坏；本实施例对上述结构作了更进一步优化，在第一机架11的顶部设有限位挡块18，限位挡块18上设有用于与安装板12配合的液压缓冲器181和限位螺钉182；在安装板12的下端和第一机架11的底部之间设置了竖向延伸的拉簧19。
由图1、图6至图8共同所示，本实施例中的水平折弯装置2包括第二机架21、设置于第二机架21上的垫板211及四个间隔设置于垫板211的顶部的水平驱动件22；水平驱动件22的动力部上设有基板221，基板221上设有位姿可调的水平折弯结构23。为了确保折弯部水平折弯后的状态，在下压辅助折弯装置3的下压辅助下，水平驱动件22可驱动水平折弯结构23对产品的折弯部 (当前为近似竖直状态)进行1-2次折弯操作。由四个独立的水平驱动件22驱动，可以单独调整水平折弯结构23的行程，增加通用性。
其中，水平折弯结构23包括基座231，基座231上转动安装有水平折弯头232，水平折弯头232与基板221之间夹设有竖向延伸的第二弹性复位件233；其中，水平折弯头232的一端设有用于折弯时与产品的折弯部(竖直状态)接触的第二滚动件234(优选滚轮或轴承，将与产品接触时的滑动摩擦变为滚动摩擦、使折弯状态更稳定且可避免划伤产品外观)。
其中，基座231包括立板2311和设置于立板2311顶部且位于水平折弯头232上方的调整板2312；水平折弯头232与立板2311转动连接，调整板2312上设有调整组件24，调整组件24与水平折弯头232抵接、用于使水平折弯头232绕转动中心在竖直面内转动以实现位姿调整，可满足同时折弯四个产品的折弯精度和位置度要求。
本实施例中的调整组件24包括设置于调整板2312上用于精调节的千分尺旋钮241，千分尺旋钮241的调节端与水平折弯头232抵接；还包括螺装在调整板2312上用于粗调的的调整螺栓242。
本实施例中水平折弯头232与立板2311转动连接的具体实施结构为：基座231的立板2311上设有枢轴235，水平折弯头232转动安装在枢轴235上；枢轴235的两端设有分别与水平折弯头232和立板2311抵接的轴向限位结构236，水平折弯头232和立板2311之间的枢轴235上设有环形间隔部237。
为了保证水平折弯结构23与产品的相对位置，本实施例在基板221上设置了定位凹槽(图中未示出)，基座231安装在定位凹槽内。为了防止位姿调整时，第二弹性复位件233发生扭曲变形，本实施例在基板221的顶部和水平折弯头232的底部均设有与第二弹性复位件233的端部适配的容纳槽。
由图1、图9和图10共同所示，本实施例中的下压辅助折弯装置3用于固定产品的非折弯部，防止折弯时产品窜动影响折弯的精度和位置度；具体包括支座31，支座31的顶部设有弧形的连接板32，连接板32上设有两个与第一折弯工位1b和第二折弯工位1c一一对应的下压机构33；下压机构33包括竖向 滑动安装在连接板32上的安装架331、设置于连接板32上用于驱动安装架331竖向运动的驱动结构334(优选气缸或电缸，借助浮动接头与安装架331连接)以及设置于安装架331上的浮动压头组件332。
其中，为了提高下压机构33运动的稳定性和可靠性，本实施例在连接板32上增设了第一直线轴承321，在安装架331上设置了导向轴333，导向轴333与第一直线轴承321滑动配合连接。
本实施例中，安装架331包括与驱动结构334连接的底板3311，间隔设置于底板3311上且开口朝下的四个U型座3312以及设置于U型座3312开口处底板上的第二直线轴承3313。浮动压头组件332包括与第二直线轴承3313滑动配合连接的连接轴3321、套设在连接轴3321上弹簧3322以及设置于连接轴3321底端的压头3323；其中弹簧3322的一端的U型座3312抵接，另一端与连接轴3321上的环形限位台抵接。浮动压头组件332中的弹簧3322可防止下压时，压头3323与产品硬性接触而损害产品。
本实施例的连接板32上集成有第一工装扫码组件34，用于折弯前、绑定工装上的工装码并上传系统，便于对折弯后的数据进行追溯，第一工装扫码组件34可采用现有技术，在此不做赘述。
由图11所示，本实施例中保压装置4包括支架41、设置于支架41上的升降电缸42、连接在升降电缸42的动力部的连接座43以及四个间隔设置在连接座43上的保压压头44。折弯后进行保压，可确保折弯效果，防止因回弹影响折弯的精度和位置度，保压后折弯部近似水平状态。
上述的折弯保压单元可同时对多个产品进行折弯，提高了生产效率，降低了生产成本，其次，在折弯时下压辅助折弯装置3压住产品，可防止折弯时，产品窜动影响产品折弯的效果；再者，依次分步进行两个垂直方向的折弯，然后保压，较容易满足折弯后的高度、位置度及一致性等较高要求，保证了产品的良率。
实施例二：
由图12、图13和图17共同所示，本实施例公开了一种产品折弯生产线， 包括多工位转盘装置7(解决了水平排布导致的折弯工位多的难题，简化结构的同时还可满足产品工艺的节拍要求)、产品输送装置8、产品上料装置5、产品下料装置6以及上述实施例一公开的折弯保压单元。
其中，多工位转盘装置7的周围依次环设有上料工位1a、第一折弯工位1b、第二折弯工位1c、保压工位1d、下料工位1e、第一空工位1f、光纤检测工位1g和第二空工位1k共八个工位；多工位转盘装置7用于带动多个用于装载产品的流转工装74在八个工位间依次循环流转(逆时针)；从而使产品依次在八个工位间接受相应的处理。
产品输送装置8用于将待折弯的产品输送至上料衔接工位(与产品上料装置5进行衔接)，还用于将下料衔接工位(与产品下料装置6进行衔接)上经保压后的产品输送至下一工位。
产品上料装置5用于将上料衔接工位上的产品搬运至已流转到上料工位1a的流转工装74上；产品下料装置6用于将流转至下料工位1e的流转工装74上已完成保压的产品搬运至下料衔接工位。
由图14至图16共同所示，本实施例中产品上料装置5与产品下料装置6结构相同设置位置不同；下面以产品上料装置5为例进行详细说明，产品上料装置5包括立柱51、设置于立柱51上的水平搬运结构52(优选电缸)、设置于水平搬运结构52上的升降结构53、设置于升降结构53上的四个产品取放结构54以及用于调整四个产品取放结构54之间间距的变间距调整机构55。
其中，产品取放结构54用于拾取产品并带动产品转动、以调整产品的角度。具体包括旋转电机541、轴套542、滑动轴、浮动弹簧543、吸嘴安装座544以及吸嘴545。轴套542的一端与旋转电机541的转轴固定连接，滑动轴的一端与轴套542滑动配合连接，另一端连接吸嘴安装座544，吸嘴安装座544上安装有吸嘴545；浮动弹簧543的一端与轴套542抵接，另一端与吸嘴安装座544抵接。
其中，变间距调整机构55包括设置于升降结构53的动力部上的连接板551，连接板551上设有水平往复运动结构553(电动推杆)和四个沿水平方向排布 且与产品取放结构54一一对应的滑座552；末端的滑座552与连接板551固定连接，其余滑座552借助导轨组件554与连接板551滑动连接，水平往复运动结构553的动力部与首端的滑座552连接且相邻两个滑座552之间活动连接；产品取放结构54设置于相应的滑座552上。在水平往复运动结构553的带动下，所有滑座552相互贴合或分离、以调整相邻滑座552之间的间距，便于取放产品。活动连接形式为：滑座552上设有凸块5521，相邻的滑座552上设有滑槽5522，凸块5521位于滑槽5522，利用凸块5521与滑槽5522沿水平方向上两个槽壁抵接后能联动的原理实现一个滑座552对相邻滑座552的推动或拉动，进而实现间距调整。
由图17和图18共同所示，本实施例中的多工位转盘装置7包括底座71、设置在底座71上的旋转驱动件72(DD马达)以及其与旋转驱动件72的动力部连接的转盘73；转盘73上设有八个与工位一一对应的工装安装位，工装安装位上安装有流转工装74(为了实现流转工装74的快速更换，流转工装74与转盘73之间可增设工装调整板)。在旋转驱动件72的带动下，转盘73带动八个流转工装74在八个工位之间循环流转。
为了防止折弯时，转盘73因下压辅助折弯装置3下压而变形，本实施例在产品折弯生产线中增设了两个与第一折弯工位1b和第二折弯工位1c一一对应的上顶机构75。上顶机构75位于转盘73的下方，具体包括支撑架、设置于支撑架上的升降气缸以及设置于升降气缸的动力部的顶柱。
本实施例中的流转工装74上设有用于夹紧产品的产品夹紧结构741，该产品夹紧结构741包括转动安装的动夹紧块744、固定安装的静夹紧块745，一端与动夹紧块744的侧面抵接的横向弹簧742以及一端与动夹紧块744的上表面抵接的竖向弹簧743；横向弹簧742和竖向弹簧743用于提供使动夹紧块744具有向静夹紧块745运动趋势的弹性力。
考虑到上述流转工装74的特殊性，本实施例的产品折弯生产线还增设了两个与上料工位1a和下料工位1e一一对应的工装控制机构76，工装控制机构76位于转盘73下方、用于控制产品夹紧结构741中的动夹紧块744向背离静夹紧 块745方向动作、松开产品以便于进行上、下料。
由图19和图20共同所示，产品折弯后通常需要放置到不同的工装上，目前主要通过人工进行工装的倒换，降低了生产效率，增加了生产成本；本实施例为了克服这个问题在产品输送装置8上增加自动倒换工装的功能。本实施例中的产品输送装置8包括主输送带机构81、从输送带机构82、两个工装定位顶起机构83以及两个工装转移机构84。其中，主输送带机构81和从输送带机构82并排设置且输送方向相反；两个工装定位顶起机构83沿主输送带机构81的输送方向由上游到下游布置，分别对应上料衔接工位和下料衔接工位；两个工装定位顶起机构83用于定位并顶起上料工装或下料工装使其脱离主输送带机构81的输送带、用于将上料工装或下料工装上的产品夹紧结构(图中未示出)张开、便于产品上料或下料；两个工装转移机构84位于上料衔接工位和下料衔接工位之间；主输送带机构81用于输送承载待折弯的产品的上料工装，其中一个工装转移机构84用于将空的上料工装(已被产品上料装置5取走产品)顶起并转移到从输送带机构82上；从输送带机构82用于输送空的下料工装，另一个工装转移机构84用于将空的下料工装顶起并转移到主输送带机构81(准备承接产品下料装置6吸取的保压后的产品)，主输送带机构81用于对承载保压后的产品的下料工装继续进行输送；具体输送路径可参见图12。
为了与第一工装扫码组件34进行绑定、实现数据的可追溯性，主输送带机构81上与上料衔接工位对应处设置有第二工装扫码组件85。主输送带机构81、从输送带机构82和工装定位顶起机构83可直接采用现有技术；另外，主输送带机构81、从输送带机构82上还可根据需要增设多组挡料组件和光纤检测组件，在此不做赘述。
由图21所示，本实施例中的工装转移机构84包括安装框架841，主输送带机构81、从输送带机构82位于安装框架841内，安装框架841的顶部设有过渡转移板842，过渡转移板842位于主输送带机构81和从输送带机构82的上方；安装框架841上安装有两个与主输送带机构81和从输送带机构82一一对应的工装顶起机构844，过渡转移板842上设有与工装顶起机构844相适配 的避让口843；过渡转移板842上设有水平推拉结构，用于将上料工装或下料工装由一工装顶起机构844经过渡转移板842推或拉到另一工装顶起机构844。
其中，工装顶起机构844包括安装支架、设置于安装支架上的升降气缸以及设置于升降气缸上的托板。水平推拉结构包括设置于过渡转移板842上的支板、安装在支板上的水平转移件845(优选气缸或电缸)以及设置于水平转移件845上的推拉板846。当上料工装或下料工装运动到位时，工装顶起机构844将上料工装或下料工装顶起脱离当前输送带，水平推拉结构推或拉被顶起的上料工装或下料工装至另一个工装顶起机构844，随后工装顶起机构844向下复位，将上料工装或下料工装再次放置到另一输送带上。
下面基于上述结构，以一个流转工装74在八个工位之间的流转为例对产品折弯生产线的工作工程进行简要阐述：
承载待折弯产品的上料工装经主输送带机构81输送至位于上料衔接工位的工装定位顶起机构83上；工装定位顶起机构83定位并顶起上料工装使其脱离主输送带机构81的输送带、并将上料工装上的产品夹紧结构张开、便于产品上料，同时第二工装扫码组件85扫工装码并上传系统。
产品上料装置5动作，产品取放结构54吸取被顶起的上料工装上的产品，水平搬运结构52对携带产品的产品取放结构54进行搬运，搬运到上料工位1a时，产品取放结构54将产品放置到多工位转盘装置7(转盘73)上的流转工装74上(产品放置前，工装控制机构76已控制产品夹紧结构741张开，放置后，产品夹紧结构741夹紧产品)。与此同时，空的上料工装输送到工装转移机构84时，被转移到从输送带机构82。
转盘73带动承载有产品的流转工装74继续流转至第一折弯工位1b；第一工装扫码组件34扫工装码并上传系统，下压辅助折弯装置3动作、下压产品的非折弯部，随后位于产品待折弯部(水平状态)下方的竖直折弯装置1动作、在竖向驱动件13的驱动下，竖直折弯结构14对产品的待折弯部进行竖直折弯，可根据需要执行1-2次竖直折弯。
转盘73带动承载有竖直折弯后产品的该流转工装74继续流转至第二折弯 工位1c(流转时下压辅助折弯装置3复位)，下压辅助折弯装置3再次动作、下压产品的非折弯部，随后位于近似竖直的折弯部一侧的水平折弯装置2动作、水平驱动件22驱动水平折弯结构23对已完成竖直折弯的折弯部进行水平折弯，可根据需要执行1-2次水平折弯。
转盘73带动该流转工装74流转至保压工位1d，保压装置4动作、升降电缸42带动保压压头44下降，对完成水平折弯的折弯部进行保压，确保折弯高度和位置度。
保压结束后，转盘73带动该流转工装74流转至下料工位1e，产品下料装置6将流转工装74上产品取走(产品取走前工装控制机构76控制产品夹紧结构741张开)，然后进行搬运；此时空的下料工装经从输送带机构82输送、输送至工装转移机构84时被转移到主输送带机构81上，经主输送带机构81输送至与下料衔接工位对应的工装定位顶起机构83上，工装定位顶起机构83定位并顶起下料工装使其脱离主输送带机构81的输送带、并将下料工装上的产品夹紧结构张开、便于产品下料；产品下料装置6将搬运到下料衔接工位的产品放置到下料工装上；随后主输送带机构81将携带产品的下料工装输送至下一工位。
转盘73带动被取走产品的流转工装74继续流转至第一空工位1f，继续流转至光纤检测工位1g、检测流转工装74内产品是否被取走，继续流转至第二空工位1k，完成一个上料、折弯、保压、下料、监测循环
本发明中的折弯保压单元可同时对多个产品进行折弯，提高了生产效率，降低了生产成本，其次，在折弯时下压辅助折弯装置3压住产品，可防止折弯时，产品窜动影响产品折弯的效果；再者，依次分步进行两个垂直方向的折弯，然后保压，较容易确保产品折弯后的高度、位置度及一致性，保证了产品的良率。另外，竖直折弯装置1和水平折弯装置2均可根据要进行位姿调整，增加了通用性。再者，产品生产线中采用多工位转盘装置7，解决了水平排布导致的折弯工位多的难题，简化结构、节省空间的同时还可满足产品工艺的节拍要求；除此之外，还在产品输送装置8上增加自动倒换工装的功能，可进一步提高生态产效率。
综上所述，本发明可满足折弯后的高度、位置度、一致性等较高要求，确保了产品的良率；且生产效率高、通用性强。
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 一种折弯保压单元，其特征在于，包括设置于第一折弯工位的第一折弯装置、设置于第二折弯工位的第二折弯装置、与所述第一折弯工位和所述第二折弯工位均对应的下压辅助折弯装置和设置于保压工位的保压装置；
    在所述下压辅助折弯装置的辅助下，所述第一折弯装置用于对多个产品的待折弯部同时进行第一方向折弯，所述第二折弯装置用于对多个已完成第一方向折弯的折弯部同时进行第二方向折弯，所述第一方向与所述第二方向垂直；
    所述保压装置用于对所有已完成第二方向折弯的所述折弯部同时进行保压。
  2. 根据权利要求1所述的折弯保压单元，其特征在于，所述第一折弯装置为竖直折弯装置和水平折弯装置其中的一个，所述第二折弯装置为竖直折弯装置和水平折弯装置其中的另一个。
  3. 根据权利要求2所述的折弯保压单元，其特征在于，所述竖直折弯装置包括第一机架、竖向滑动安装在所述第一机架上的安装板、安装在所述第一机架上用于驱动所述安装板运动的竖向驱动件、安装在所述安装板上的多个竖直折弯结构以及用于对多个所述竖直折弯结构中的折弯部件进行独立位姿调整的调整结构。
  4. 根据权利要求3所述的折弯保压单元，其特征在于，所述竖直折弯结构包括安装座、转动安装在所述安装座上的竖直折弯头以及水平延伸的第一弹性复位件；所述第一弹性复位件夹设在所述竖直折弯头与所述安装板之间；所述竖直折弯头的一端设有用于与所述产品的待折弯部接触的第一滚动件；
    所述调整结构包括至少与首尾两个所述安装座连接的调整板，所述调整板上螺装有与所述竖直折弯头一一对应的调节件，所述调节件与所述竖直折弯头背离所述安装板的一侧抵接、用于使所述竖直折弯头转动以实现位姿调整。
  5. 根据权利要求3所述的折弯保压单元，其特征在于，所述第一机架的顶部设有限位挡块，所述限位挡块上设有液压缓冲器；
    所述安装板的下端和所述第一机架的底部之间设置有竖向延伸的拉簧。
  6. 根据权利要求2所述的折弯保压单元，其特征在于，所述水平折弯装置包括第二机架和多个间隔设置于所述第二机架的顶部的水平驱动件；所述水平 驱动件上设有位姿可调的水平折弯结构。
  7. 根据权利要求6所述的折弯保压单元，其特征在于，所述水平折弯结构包括基座，所述基座上转动安装有水平折弯头，所述水平折弯头与所述水平驱动件的动力部之间夹设有竖向延伸的第二弹性复位件，所述水平折弯头的一端设有用于与所述产品的折弯部接触的第二滚动件；
    所述水平折弯头上方的所述基座上设有调整组件，所述调整组件与所述水平折弯头抵接、用于使所述水平折弯头转动以实现位姿调整。
  8. 根据权利要求2所述的折弯保压单元，其特征在于，所述下压辅助折弯装置包括支座，所述支座的顶部设有连接板，所述连接板上设有两个与所述第一折弯工位和所述第二折弯工位一一对应的下压机构；
    所述下压机构包括竖向滑动安装在所述连接板上的安装架、设置于所述连接板上用于驱动所述安装架竖向运动的驱动结构以及设置于所述安装架上的浮动压头组件。
  9. 一种产品折弯生产线，其特征在于，包括多工位转盘装置、产品输送装置、产品上料装置、产品下料装置以及权利要求1-8任一项所述的折弯保压单元；
    所述多工位转盘装置的周围至少依次环设有上料工位、所述第一折弯工位、所述第二折弯工位、所述保压工位和下料工位；所述多工位转盘装置用于带动多个用于装载所述产品的流转工装在多个所述工位间依次循环流转；
    所述产品输送装置用于将待折弯的所述产品输送至上料衔接工位，还用于将下料衔接工位上经保压后的所述产品输送至下一工位；
    所述产品上料装置用于将所述上料衔接工位上的所述产品搬运至已流转到所述上料工位的所述流转工装上；
    所述产品下料装置用于将流转至所述下料工位的所述流转工装上已完成保压的所述产品搬运至所述下料衔接工位。
  10. 根据权利要求9所述的产品折弯生产线，其特征在于，所述多工位转盘装置包括底座、设置在所述底座上的旋转驱动件以及其与所述旋转驱动件的动 力部连接的转盘；所述转盘上设有多个与所述工位一一对应的工装安装位，所述工装安装位上安装有所述流转工装。
  11. 根据权利要求10所述的产品折弯生产线，其特征在于，所述产品折弯生产线还包括两个上顶机构和两个工装控制机构；
    两个所述上顶机构与所述第一折弯工位和所述第二折弯工位一一对应，且位于所述转盘的下方、用于防止所述转盘因所述下压辅助折弯装置下压而变形；
    两个所述工装控制机构与所述上料工位和所述下料工位一一对应，且位于所述转盘下方、用于控制所述流转工装上的产品夹紧结构动作以便于进行上下料。
  12. 根据权利要求9所述的产品折弯生产线，其特征在于，所述产品上料装置与所述产品下料装置相同；均包括立柱、设置于所述立柱上的水平搬运结构、设置于所述水平搬运结构上的升降结构、设置于所述升降结构上的多个产品取放结构以及用于调整多个所述产品取放结构之间间距的变间距调整机构；
    所述产品取放结构用于拾取所述产品并带动所述产品转动、以调整所述产品的角度。
  13. 根据权利要求12所述的产品折弯生产线，其特征在于，所述变间距调整机构包括设置于所述升降结构上的连接板，所述连接板上设有水平往复运动结构和多个沿水平方向排布且与所述产品取放结构一一对应的滑座，
    末端的所述滑座与所述连接板固定连接，其余所述滑座与所述连接板滑动连接，所述水平往复运动结构的动力部与首端的所述滑座连接且相邻两个所述滑座之间活动连接；在所述水平往复运动结构的带动下，所有所述滑座相互贴合或分离、以调整相邻所述滑座之间的间距；所述产品取放结构设置于相应的所述滑座上。
  14. 根据权利要求9所述的产品折弯生产线，其特征在于，所述产品输送装置包括主输送带机构、从输送带机构、两个工装定位顶起机构以及两个工装转移机构；
    所述主输送带机构和所述从输送带机构并排设置且输送方向相反；
    两个所述工装定位顶起机构沿所述主输送带机构的输送方向由上游到下游布置，分别对应所述上料衔接工位和所述下料衔接工位；两个所述工装定位顶起机构用于定位并顶起上料工装或下料工装使其脱离所述主输送带机构、便于产品上料或下料；
    两个所述工装转移机构位于所述上料衔接工位和所述下料衔接工位之间；
    所述主输送带机构用于输送承载待折弯的所述产品的所述上料工装，其中一个所述工装转移机构用于将空的所述上料工装顶起并转移到所述从输送带机构上；
    所述从输送带机构用于输送空的所述下料工装，另一个所述工装转移机构用于将空的所述下料工装顶起并转移到所述主输送带机构，所述主输送带机构用于对承载保压后的所述产品的所述下料工装继续进行输送。
  15. 根据权利要求14所述的产品折弯生产线，其特征在于，所述工装转移机构包括安装框架，所述安装框架的顶部设有过渡转移板，所述过渡转移板位于所述主输送带机构和所述从输送带机构的上方；
    所述安装框架上安装有两个与所述主输送带机构和所述从输送带机构一一对应的工装顶起机构，所述过渡转移板上设有与所述工装顶起机构相适配的避让口；
    所述过渡转移板上设有水平推拉结构，用于将所述上料工装或所述下料工装由一所述工装顶起机构推或拉到另一所述工装顶起机构。
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