CN114160633A

CN114160633A - Pressure maintaining unit and product of bending production line bend

Info

Publication number: CN114160633A
Application number: CN202111432027.4A
Authority: CN
Inventors: 王新江; 尹春雷
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-03-11
Anticipated expiration: 2041-11-29
Also published as: CN114160633B; WO2023092671A1

Abstract

The invention discloses a bending pressure maintaining unit and a product bending production line, which comprise a first bending device arranged at a first bending station, a second bending device arranged at a second bending station, a pressing auxiliary bending device corresponding to the first bending station and the second bending station, and a pressure maintaining device arranged at a pressure maintaining station; under the assistance of pressing the auxiliary bending device, the first bending device simultaneously bends the parts to be bent of a plurality of products in a first direction, the second bending device continuously and simultaneously bends a plurality of bent parts which are bent in the first direction, and the first direction and the second direction are vertical; and the pressure maintaining device simultaneously maintains the pressure of all the bent parts bent in the second direction. The product bending production line comprises a multi-station turntable device, a product conveying device, a product feeding device, a product discharging device and a bending pressure maintaining unit. The invention can meet the higher requirements of height, position degree, consistency and the like after bending, and ensures the yield of products; and the production efficiency is high and the universality is strong.

Description

Pressure maintaining unit and product of bending production line bend

Technical Field

The invention belongs to the technical field of product bending, and particularly relates to a bending pressure maintaining unit and product assembling equipment.

Background

In the assembly production process of the shell of the micro-electro-acoustic product, a conducting elastic sheet is usually installed on the electro-acoustic element according to the function requirement of the product, one end of the conducting elastic sheet is electrically connected with an internal electronic component of the electro-acoustic element, and the other end of the conducting elastic sheet is electrically connected with an external electronic circuit. According to the technological requirements of products, one end electrically connected with an external electronic circuit needs to be bent by the conducting elastic sheet. The contact part (with certain elastic potential energy due to extrusion) bent by the conducting elastic sheet is utilized to realize the tight electric connection with an external electronic circuit. In order to ensure good contact with an external electronic circuit, the height and the position degree of the bent conducting elastic sheet are higher.

The prior bending device has poor stability and cannot meet the high requirements of the height, the position degree, the consistency and the like of the bent conducting elastic sheet, and the yield of products is influenced; the existing bending device only bends a single product, factors influencing the bending quality are few, but the bending device is low in efficiency, small in productivity and high in cost, and cannot meet the requirements of mass industrial production. In addition, the existing bending production line is horizontally arranged, has a complex structure and large occupied space, and cannot meet the beat requirement of the product process.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and the technical problem to be solved is to provide the bending pressure maintaining unit and the product bending production line, which are high in efficiency, can ensure the height, the position degree and the consistency of a product after being bent, and improve the yield of the product.

In order to solve at least one technical problem in the prior art, an embodiment of the present invention provides a bending and pressure maintaining unit, including a first bending device disposed at a first bending station, a second bending device disposed at a second bending station, a downward pressing auxiliary bending device corresponding to both the first bending station and the second bending station, and a pressure maintaining device disposed at a pressure maintaining station;

under the assistance of the pressing auxiliary bending device, the first bending device is used for simultaneously bending the parts to be bent of a plurality of products in a first direction, the second bending device is used for simultaneously bending a plurality of bent parts which are bent in the first direction in a second direction, and the first direction is vertical to the second direction;

and the pressure maintaining device is used for simultaneously maintaining the pressure of all the bent parts which are bent in the second direction.

Further, the first bending device is one of a vertical bending device and a horizontal bending device, and the second bending device is the other of the vertical bending device and the horizontal bending device.

Further, the vertical bending device comprises a first rack, a mounting plate vertically and slidably mounted on the first rack, a vertical driving piece mounted on the first rack and used for driving the mounting plate to move, a plurality of vertical bending structures mounted on the mounting plate, and an adjusting structure used for adjusting the independent pose of bending components in the plurality of vertical bending structures.

Further, the vertical bending structure comprises a mounting seat, a vertical bending head rotatably mounted on the mounting seat and a first elastic resetting piece extending horizontally; the first elastic resetting piece is clamped between the vertical bending head and the mounting plate; one end of the vertical bending head is provided with a first rolling piece which is used for being in contact with a part to be bent of the product;

the adjusting structure comprises at least two adjusting plates connected with the mounting seat from head to tail, adjusting pieces in one-to-one correspondence with the vertical bent heads are mounted on the adjusting plates in a threaded mode, and the adjusting pieces abut against one sides of the mounting plates and are used for enabling the vertical bent heads to rotate to achieve pose adjustment.

Furthermore, a limit stop is arranged at the top of the first rack, and a hydraulic buffer is arranged on the limit stop;

and a vertically extending tension spring is arranged between the lower end of the mounting plate and the bottom of the first rack.

Further, the horizontal bending device comprises a second rack and a plurality of horizontal driving pieces arranged at the top of the second rack at intervals; and a horizontal bending structure with adjustable pose is arranged on the horizontal driving piece.

Further, the horizontal bending structure comprises a base, a horizontal bending head is rotatably mounted on the base, a second elastic reset piece which extends vertically is clamped between the horizontal bending head and a power part of the horizontal driving piece, and a second rolling piece which is used for being in contact with a bending part of the product is arranged at one end of the horizontal bending head;

and an adjusting component is arranged on the base above the horizontal bending head, and the adjusting component is abutted against the horizontal bending head and used for enabling the horizontal bending head to rotate so as to realize pose adjustment.

Further, the auxiliary downward-pressing bending device comprises a support, a connecting plate is arranged at the top of the support, and two downward-pressing mechanisms which correspond to the first bending station and the second bending station one by one are arranged on the connecting plate;

the mechanism of pushing down include vertical slidable mounting be in mounting bracket on the connecting plate, set up in be used for the drive on the connecting plate mounting bracket vertical motion's drive structure and set up in unsteady pressure head subassembly on the mounting bracket.

The embodiment of the invention also provides a product bending production line, which comprises a multi-station turntable device, a product conveying device, a product feeding device, a product discharging device and the bending pressure maintaining unit according to any one of claims 1 to 8;

a feeding station, the first bending station, the second bending station, the pressure maintaining station and a discharging station are at least arranged around the multi-station turntable device in sequence in a surrounding mode; the multi-station turntable device is used for driving a plurality of circulation tools for loading the products to circulate among the plurality of stations in a circulating manner;

the product conveying device is used for conveying the product to be bent to the feeding connection station and conveying the product subjected to pressure maintaining on the feeding connection station to the next station;

the product feeding device is used for conveying the products on the feeding connecting station to the flow tool which is flowed to the feeding station;

the product blanking device is used for conveying the products which are subjected to pressure maintaining on the flow-turning tool and flow to the blanking station to the blanking connection station.

Further, the multi-station turntable device comprises a base, a rotary driving piece arranged on the base and a turntable connected with a power part of the rotary driving piece; the rotary table is provided with a plurality of tool mounting positions corresponding to the stations one to one, and the tool mounting positions are provided with the circulation tools.

Furthermore, the product bending production line also comprises two jacking mechanisms and two tool control mechanisms;

the two jacking mechanisms correspond to the first bending station and the second bending station one by one, are positioned below the rotary table and are used for preventing the rotary table from deforming due to the downward pressing of the downward pressing auxiliary bending device;

two frock control mechanism with the material loading station with unloading station one-to-one, and be located the carousel below, be used for control the product on the circulation frock presss from both sides tight structure action so that go on unloading.

Further, the product feeding device is the same as the product discharging device; each of the lifting mechanisms comprises an upright post, a horizontal conveying structure arranged on the upright post, a lifting structure arranged on the horizontal conveying structure, a plurality of product taking and placing structures arranged on the lifting structure and a variable-interval adjusting mechanism for adjusting the interval between the product taking and placing structures;

the product taking and placing structure is used for picking up the product and driving the product to rotate so as to adjust the angle of the product.

Further, the variable-spacing adjusting mechanism comprises a connecting plate arranged on the lifting structure, a horizontal reciprocating motion structure and a plurality of sliding seats which are arranged along the horizontal direction and correspond to the product taking and placing structures one by one are arranged on the connecting plate,

the sliding seats at the tail end are fixedly connected with the connecting plate, the rest sliding seats are connected with the connecting plate in a sliding manner, the power part of the horizontal reciprocating motion structure is connected with the sliding seats at the head end, and two adjacent sliding seats are movably connected; under the drive of the horizontal reciprocating structure, all the sliding seats are mutually attached or separated so as to adjust the distance between the adjacent sliding seats; the product taking and placing structure is arranged on the corresponding sliding seat.

Further, the product conveying device comprises a main conveying belt mechanism, a secondary conveying belt mechanism, two tool positioning and jacking mechanisms and two tool transferring mechanisms;

the main conveying belt mechanism and the auxiliary conveying belt mechanism are arranged side by side and opposite in conveying direction;

the two tool positioning jacking mechanisms are arranged from upstream to downstream along the conveying direction of the main conveying belt mechanism and respectively correspond to the feeding joining station and the discharging joining station; the two tool positioning jacking mechanisms are used for positioning and jacking a loading tool or a blanking tool to separate the loading tool or the blanking tool from the main conveying belt mechanism, so that the product can be conveniently loaded or blanked;

the two tool transfer mechanisms are positioned between the feeding connection station and the discharging connection station;

the main conveying belt mechanism is used for conveying the loading tools for bearing the products to be bent, and one of the tool transferring mechanisms is used for jacking the empty loading tool and transferring the empty loading tool to the auxiliary conveying belt mechanism;

the auxiliary conveyor belt mechanism is used for conveying empty blanking tools, the other tool transfer mechanism is used for jacking the empty blanking tools and transferring the empty blanking tools to the main conveyor belt mechanism, and the main conveyor belt mechanism is used for continuously conveying the blanking tools bearing the pressure-maintained products.

Further, the tool transfer mechanism comprises an installation frame, a transition transfer plate is arranged at the top of the installation frame, and the transition transfer plate is positioned above the main conveying belt mechanism and the auxiliary conveying belt mechanism;

two tool jacking mechanisms which are in one-to-one correspondence with the main conveying belt mechanism and the auxiliary conveying belt mechanism are installed on the installation frame, and avoidance ports which are matched with the tool jacking mechanisms are formed in the transition transfer plate;

the transition transfer plate is provided with a horizontal push-pull structure for pushing or pulling the feeding tool or the discharging tool to the other tool jacking mechanism from one tool jacking mechanism.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the bending and pressure maintaining unit comprises a first bending device arranged at a first bending station, a second bending device arranged at a second bending station, a pressing auxiliary bending device corresponding to the first bending station and the second bending station, and a pressure maintaining device arranged at a pressure maintaining station; under the assistance of pressing the auxiliary bending device, the first bending device is used for simultaneously bending the parts to be bent of a plurality of products in a first direction, the second bending device is used for simultaneously bending a plurality of bent parts which are bent in the first direction in a second direction, and the first direction is vertical to the second direction; the pressure maintaining device is used for simultaneously maintaining the pressure of all bent parts which are bent in the second direction. The product bending production line comprises a multi-station turntable device, a product conveying device, a product feeding device, a product discharging device and a bending pressure maintaining unit.

Firstly, the bending pressure maintaining unit can bend a plurality of products simultaneously, so that the production efficiency is improved, the production cost is reduced, secondly, the auxiliary bending device is pressed down to press the products during bending, and the product shifting can be prevented from influencing the product bending effect during bending; moreover, the bending in two vertical directions is sequentially performed step by step, then the pressure is maintained, the high requirements of the bent height, the bent position degree, the bent consistency and the like are easily met, and the yield of products is guaranteed. The adoption of the multi-station turntable device can save space and meet the beat requirement of the product process.

In conclusion, the invention can meet the higher requirements of the height, the position degree, the consistency and the like after bending, and ensures the yield of products; and the production efficiency is high and the universality is strong.

Drawings

FIG. 1 is a schematic structural diagram of a bending pressure maintaining unit according to the present invention;

FIG. 2 is a schematic diagram of the vertical bending device of FIG. 1;

FIG. 3 is a schematic view of the mounting plate and components thereon of FIG. 2;

FIG. 4 is a schematic view of the vertical bending structure and adjustment structure of FIG. 3;

FIG. 5 is a sectional view of the mounting block and vertical dog point pivot connection of FIG. 4;

FIG. 6 is a schematic view of the horizontal bending apparatus of FIG. 1;

FIG. 7 is a schematic view of the horizontal flexure arrangement of FIG. 6, illustrating the mounting arrangement of the horizontal drive member;

FIG. 8 is a sectional view of the base and horizontal dog point pivot connection of FIG. 7;

FIG. 9 is a schematic view of the push-down assist bending apparatus of FIG. 1;

FIG. 10 is an exploded view of the hold-down mechanism of FIG. 9;

FIG. 11 is a schematic structural view of the pressure retention device of FIG. 1;

FIG. 12 is a schematic view of the product bending line of the present invention;

FIG. 13 is a top view of FIG. 12;

FIG. 14 is a schematic view of the structure of the product loading device of FIG. 12;

FIG. 15 is an exploded view of the product pick and place structure and the variable spacing adjustment mechanism of FIG. 14;

FIG. 16 is a schematic view of the pitch adjustment mechanism of FIG. 15 in another state;

FIG. 17 is a schematic view of the multi-station turntable device of FIG. 12;

FIG. 18 is a schematic view of a portion of the transfer tool of FIG. 17;

FIG. 19 is a schematic illustration of the product delivery device of FIG. 12;

FIG. 20 is a top view of FIG. 19;

FIG. 21 is a schematic structural view of the tool transfer mechanism of FIG. 19;

in the figure: 1-a vertical bending device, 11-a first frame, 12-a mounting plate, 13-a vertical driving piece, 14-a vertical bending structure, 141-a mounting seat, 1411-a pivot structure, 1412-a bearing, 1413-a bearing adjusting ring, 1414-a bearing adjusting ring, 142-a vertical bending head, 1421-a vertical part, 1422-a transverse part, 1423-a first rolling member, 143-a first elastic resetting member, 15-an adjusting structure, 151-an adjusting plate, 152-an adjusting member, 16-a limit locking structure, 161-a limit seat, 162-a limit through groove, 163-a locking member, 17-a slide rail slider structure, 18-a limit stopper, 181-a hydraulic buffer, 182-a limit screw, 19-a tension spring, 2-a horizontal bending device, 21-a second frame, 211-a backing plate, 22-a horizontal driving piece, 221-a base plate, 23-a horizontal bending structure, 231-a base, 2311-a vertical plate, 2312-an adjusting plate, 232-a horizontal bending head, 233-a second elastic resetting piece, 234-a second rolling piece, 235-a pivot, 236-an axial limiting structure, 237-an annular spacing part, 24-an adjusting component, 241-a micrometer knob, 242-an adjusting bolt, 3-a downward pressing auxiliary bending device, 31-a support, 32-a connecting plate, 321-a first linear bearing, 33-a downward pressing mechanism, 331-a mounting frame, 3311-a bottom plate, 3312-a U-shaped seat, 3313-a second linear bearing, 332-a floating pressure head component, 3321-a connecting shaft and 3322-a spring, 3323-a pressure head, 333-a guide shaft, 334-a driving structure, 34-a first tool code sweeping assembly, 4-a pressure maintaining device, 41-a support, 42-a lifting electric cylinder, 43-a connecting seat, 44-a pressure maintaining pressure head, 5-a product feeding device, 51-an upright post, 52-a horizontal carrying structure, 53-a lifting structure, 54-a product taking and placing structure, 541-a rotating motor, 542-a shaft sleeve, 543-a floating spring, 544-a suction nozzle mounting seat, 545-a suction nozzle, 55-a variable-interval adjusting mechanism, 551-a connecting plate, 552-a sliding seat, 5521-a bump, 5522-a sliding groove, 553-a horizontal reciprocating structure, 554-a guide rail assembly, 6-a product blanking device, 7-a rotary table device and 71-a base, 72-rotary driving piece, 73-rotary disc, 74-circulation tool, 741-product clamping structure, 742-transverse spring, 743-vertical spring, 744-dynamic clamping block, 745-static clamping block, 75-upward jacking mechanism, 76-tool control mechanism, 8-product conveying device, 81-main conveying belt mechanism, 82-auxiliary conveying belt mechanism, 83-tool positioning jacking mechanism, 84-tool transfer mechanism, 841-installation frame, 842-transition transfer plate, 843-avoidance opening, 844-tool jacking mechanism, 845-horizontal transfer piece, 846-push-pull plate, 85-second tool code sweeping component, 1 a-feeding station, 1 b-first bending station, 1 c-second bending station, 1 d-pressure maintaining station, 1 e-a blanking station, 1 f-a first idle station, 1 g-an optical fiber detection station and 1 k-a second idle station.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

as shown in fig. 1, the embodiment discloses a bending and pressure maintaining unit, which includes a first bending device disposed at a first bending station 1b, a second bending device disposed at a second bending station 1c, a downward pressing auxiliary bending device 3 corresponding to the first bending station 1b and the second bending station 1c, and a pressure maintaining device 4 disposed at a pressure maintaining station 1 d; under the assistance of pressing the auxiliary bending device 3, the first bending device is used for simultaneously bending the parts to be bent of a plurality of products (four products shown in the attached drawing) in a first direction, the second bending device is used for continuously and simultaneously bending the bent parts of the four products which are bent in the first direction in a second direction, and the first direction is vertical to the second direction; the pressure maintaining device 4 is configured to simultaneously maintain the pressure of the bent portions of all the products that have been bent in the second direction, and the state of the bent portion after pressure maintaining can be seen in fig. 17.

The first bending device is one of a vertical bending device 1 and a horizontal bending device 2, and 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 the product and the process requirements, in this embodiment, the first direction is a vertical direction, and the second direction is a horizontal direction.

As shown collectively in fig. 2 to 5, the vertical bending apparatus 1 in the present 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, a vertical driving member 13 (preferably, an air cylinder or an electric cylinder, the vertical driving member 13 being connected to the mounting plate 12 by means of a floating joint) mounted on the first frame 11 for driving the mounting plate 12 to move, four vertical bending structures 14 mounted on the mounting plate 12, and an adjusting structure 15 for independently adjusting the attitude of the bending members in the four vertical bending structures 14. In order to ensure the state after the bending part is vertically bent, the vertical driving part 13 can drive the vertical bending structure 14 to perform 1-2 times of bending operation on the part (horizontal state) to be bent of the product under the pressing assistance of the pressing auxiliary bending device 3 (see fig. 1).

In this embodiment, the vertical bending structure 14 includes a mounting seat 141, a vertical bending head 142 (i.e., a bending part), and a first elastic restoring member 143 (a cylindrical spring) extending horizontally. The vertical bending head 142 includes a vertical part 1421 and a horizontal part 1422 connected to each other; the vertical portion 1421 is rotatably connected to the mounting seat 141, and one end of the horizontal portion 1422 is provided with a first rolling element 1423 (preferably, a roller or a bearing, which changes sliding friction into rolling friction when contacting with a product, and can avoid the vertical bend 142 from scratching the appearance of the product when bending) for contacting with a portion to be bent on the product when bending. The first elastic resetting piece 143 is clamped between the vertical part 1421 of the vertical bending head 142 and the mounting plate 12, and is used for self-resetting after pose adjustment; in order to prevent the first elastic restoring member 143 from being distorted during the posture adjustment, the present embodiment provides accommodating grooves adapted to the end portions of the first elastic restoring member 143 on both the vertical portion 1421 of the vertical bent head 142 and the mounting plate 12.

The specific implementation structure of the rotational connection between the vertical portion 1421 and the mounting seat 141 in this embodiment is as follows: a horizontally extending pivot structure 1411 is arranged on the mounting seat 141, and a vertical part 1421 of the vertical bending head 142 is rotatably mounted on the pivot structure 1411 (preferably a bolt with an optical section and a threaded section) by two bearings 1412 which are arranged at intervals; a bearing adjusting ring 1413 is arranged between one of the bearings 1412 and the mounting seat 141, a bearing adjusting ring 1414 is arranged between the two bearings 1412, a limiting part (a bolt head) is formed at one end of the pivot structure 1411 far away from the mounting seat 141, and the other bearing 1412 is abutted with the limiting part.

In this embodiment, the adjusting structure 15 includes an adjusting plate 151 connected to at least the first and the last two mounting seats 141 (preferably, the adjusting plate 151 is connected to all the mounting seats 141), an adjusting member 152 (preferably, a bolt) corresponding to the vertical bending head 142 in one-to-one manner is screwed on the adjusting plate 151, the adjusting member 152 abuts against one side of the vertical bending head 142 (the vertical portion 1421) departing from the mounting plate 12, and is used for rotating the vertical bending head 142 around the rotation center in the vertical plane to adjust the pose, so that the bending accuracy, the position degree and the consistency of four products to be bent at the same time can be met.

When the position posture is adjusted, the rotation amplitude of the vertical bending head 142 is limited, and the stability after adjustment is ensured; the embodiment further optimizes the structure; the top of the mounting seat 141 is provided with a limit locking structure 16 for limiting and locking the vertical bending head 142; the limiting and locking structure 16 comprises a limiting seat 161, a limiting through groove 162 for the vertical bending head 142 to extend out is arranged on the limiting seat 161, and a locking member 163 (locking bolt) is screwed on the limiting seat 161; one end of the locking member 163 extends into the limiting through groove 162 and abuts against the vertical part 1421 of the vertical bending head 142 to be locked.

In order to ensure the relative position of the vertical bending structure 14 and a product and reduce factors influencing the bending precision, the position degree and the consistency; in this embodiment, four positioning grooves (not shown) are equally spaced on the mounting plate 12, and the mounting seats 141 of the vertical bending structures 14 are mounted in the corresponding positioning grooves.

In order to ensure the force and speed of the vertical bending structure 14 when the device moves forward and backward, the device is prevented from being damaged by too high speed and too large impact force; in the embodiment, the structure is further optimized, a limit stop 18 is arranged at the top of the first frame 11, and a hydraulic buffer 181 and a limit screw 182 which are matched with the mounting plate 12 are arranged on the limit stop 18; a vertically extending tension spring 19 is provided between the lower end of the mounting plate 12 and the bottom of the first housing 11.

As shown in fig. 1 and fig. 6 to 8, the horizontal bending apparatus 2 in this embodiment includes a second frame 21, a backing plate 211 disposed on the second frame 21, and four horizontal driving members 22 disposed at intervals on top of the backing plate 211; the power part of the horizontal driving part 22 is provided with a base plate 221, and the base plate 221 is provided with a horizontal bending structure 23 with an adjustable pose. In order to ensure the state after the bending part is bent horizontally, the horizontal driving part 22 can drive the horizontal bending structure 23 to perform 1-2 times of bending operation on the bending part (currently, in an approximately vertical state) of the product under the pressing assistance of the pressing auxiliary bending device 3. The stroke of the horizontal bending structure 23 can be independently adjusted by being driven by four independent horizontal driving pieces 22, so that the universality is improved.

The horizontal bending structure 23 comprises a base 231, a horizontal bending head 232 is rotatably mounted on the base 231, and a second elastic resetting piece 233 extending vertically is clamped between the horizontal bending head 232 and the base plate 221; one end of the horizontal bending head 232 is provided with a second rolling member 234 (preferably, a roller or a bearing) for contacting with a bending part (vertical state) of the product during bending, so that sliding friction during contacting with the product is changed into rolling friction, the bending state is more stable, and the appearance of the product can be prevented from being scratched).

The base 231 comprises a vertical plate 2311 and an adjusting plate 2312 which is arranged at the top of the vertical plate 2311 and is positioned above the horizontal bending head 232; the horizontal bending elbow 232 is rotatably connected with the vertical plate 2311, the adjusting plate 2312 is provided with the adjusting assembly 24, the adjusting assembly 24 is abutted against the horizontal bending elbow 232 and used for enabling the horizontal bending elbow 232 to rotate around a rotating center in a vertical plane so as to achieve pose adjustment, and the requirements of bending precision and position degree of four products to be bent at the same time can be met.

The adjusting assembly 24 in this embodiment includes a micrometer knob 241 disposed on the adjusting plate 2312 for fine adjustment, and an adjusting end of the micrometer knob 241 abuts against the horizontal bending head 232; an adjustment bolt 242 is also included which is threaded onto adjustment plate 2312 for coarse adjustment.

The specific implementation structure of the rotary connection between the horizontal bending bend 232 and the vertical plate 2311 in this embodiment is as follows: a pivot 235 is arranged on the vertical plate 2311 of the base 231, and the horizontal bending head 232 is rotatably arranged on the pivot 235; the two ends of the pivot 235 are provided with axial limiting structures 236 respectively abutted against the horizontal folding elbow 232 and the vertical plate 2311, and the pivot 235 between the horizontal folding elbow 232 and the vertical plate 2311 is provided with an annular spacing part 237.

In order to ensure the relative position of the horizontal bending structure 23 and the product, the present embodiment provides a positioning groove (not shown) on the base plate 221, and the base 231 is installed in the positioning groove. In order to prevent the second elastic restoring member 233 from being distorted and deformed during the posture adjustment, in this embodiment, accommodating grooves adapted to the end portions of the second elastic restoring member 233 are formed at the top of the base plate 221 and at the bottom of the horizontal bending head 232.

As shown in fig. 1, 9 and 10, the auxiliary press bending device 3 in this embodiment is used to fix an unbent portion of a product, so as to prevent the product from moving during bending to affect the bending precision and position; the bending device specifically comprises a support 31, wherein an arc-shaped connecting plate 32 is arranged at the top of the support 31, and two pressing mechanisms 33 which are in one-to-one correspondence with a first bending station 1b and a second bending station 1c are arranged on the connecting plate 32; the pressing mechanism 33 includes a mounting frame 331 vertically slidably mounted on the connecting plate 32, a driving structure 334 (preferably an air cylinder or an electric cylinder, connected to the mounting frame 331 by a floating joint) disposed on the connecting plate 32 for driving the mounting frame 331 to move vertically, and a floating head assembly 332 disposed on the mounting frame 331.

In order to improve the stability and reliability of the movement of the pressing mechanism 33, in this embodiment, a first linear bearing 321 is additionally arranged on the connecting plate 32, a guide shaft 333 is arranged on the mounting frame 331, and the guide shaft 333 is connected with the first linear bearing 321 in a sliding fit manner.

In this embodiment, the mounting frame 331 includes a bottom plate 3311 connected to the driving structure 334, four U-shaped seats 3312 spaced apart from each other and having downward openings on the bottom plate 3311, and a second linear bearing 3313 disposed on the bottom plate at the opening of the U-shaped seat 3312. The floating pressure head assembly 332 comprises a connecting shaft 3321 connected with the second linear bearing 3313 in a sliding fit manner, a spring 3322 sleeved on the connecting shaft 3321, and a pressure head 3323 arranged at the bottom end of the connecting shaft 3321; wherein, the U-shaped seat 3312 at one end of the spring 3322 is abutted against, and the other end is abutted against the annular limit table on the connecting shaft 3321. The spring 3322 in the floating ram assembly 332 prevents the ram 3323 from making hard contact with the product and damaging the product when depressed.

The connecting plate 32 of this embodiment is integrated with a first tool code scanning assembly 34 for before bending, binding the tool code on the tool and uploading the system, so as to trace the data after bending, and the first tool code scanning assembly 34 can adopt the prior art and is not described herein.

As shown in fig. 11, the pressure maintaining device 4 of the present embodiment includes a bracket 41, an electric lift cylinder 42 disposed on the bracket 41, a connecting base 43 connected to a power unit of the electric lift cylinder 42, and four pressure maintaining rams 44 disposed on the connecting base 43 at intervals. The pressure maintaining is carried out after the bending, the bending effect can be ensured, the bending precision and the bending position degree are prevented from being influenced by the resilience, and the bent part is in an approximately horizontal state after the pressure maintaining.

The bending pressure maintaining unit can bend a plurality of products simultaneously, so that the production efficiency is improved, the production cost is reduced, and the auxiliary bending device 3 is pressed down to press the products during bending, so that the product shifting can be prevented from influencing the product bending effect during bending; moreover, the bending in two vertical directions is sequentially performed step by step, then the pressure is maintained, the high requirements of the bent height, the bent position degree, the bent consistency and the like are easily met, and the yield of products is guaranteed.

Example two:

as shown in fig. 12, 13, and 17, this embodiment discloses a product bending production line, which includes a multi-station turntable device 7 (which solves the problem of multiple bending stations caused by horizontal arrangement, and can meet the requirement of product technology on the beat while simplifying the structure), a product conveying device 8, a product feeding device 5, a product discharging device 6, and the bending pressure maintaining unit disclosed in the first embodiment.

Eight stations including a feeding station 1a, a first bending station 1b, a second bending station 1c, a pressure maintaining station 1d, a discharging station 1e, a first idle station 1f, an optical fiber detection station 1g and a second idle station 1k are sequentially and circularly arranged around the multi-station turntable device 7; the multi-station turntable device 7 is used for driving a plurality of circulation tools 74 for loading products to circulate (anticlockwise) in sequence among eight stations; so that the products are correspondingly processed in eight work stations in sequence.

The product conveying device 8 is used for conveying the product to be bent to the feeding connecting station (connected with the product feeding device 5), and is also used for conveying the product subjected to pressure maintaining on the feeding connecting station (connected with the product discharging device 6) to the next station.

The product feeding device 5 is used for conveying the products on the feeding connecting station to the circulation tool 74 which is circulated to the feeding station 1 a; the product blanking device 6 is used for conveying the product which is subjected to pressure maintaining on the circulation tool 74 and flows to the blanking station 1e to the blanking connection station.

As shown in fig. 14 to 16, the product feeding device 5 and the product discharging device 6 in this embodiment have the same structure and different installation positions; in the following, the product loading apparatus 5 is taken as an example and described in detail, and the product loading apparatus 5 includes a vertical column 51, a horizontal conveying structure 52 (preferably an electric cylinder) disposed on the vertical column 51, a lifting structure 53 disposed on the horizontal conveying structure 52, four product taking and placing structures 54 disposed on the lifting structure 53, and a variable pitch adjusting mechanism 55 for adjusting the pitch between the four product taking and placing structures 54.

The product pick-and-place structure 54 is used for picking up the product and driving the product to rotate so as to adjust the angle of the product. Specifically, the suction nozzle includes a rotary motor 541, a shaft housing 542, a sliding shaft, a floating spring 543, a suction nozzle mounting seat 544, and a suction nozzle 545. One end of the shaft sleeve 542 is fixedly connected with the rotating shaft of the rotating motor 541, one end of the sliding shaft is connected with the shaft sleeve 542 in a sliding fit manner, the other end of the sliding shaft is connected with a suction nozzle mounting seat 544, and a suction nozzle 545 is arranged on the suction nozzle mounting seat 544; one end of the floating spring 543 abuts against the boss 542, and the other end abuts against the suction nozzle mount 544.

The variable pitch adjusting mechanism 55 includes a connecting plate 551 disposed on the power portion of the lifting structure 53, and the connecting plate 551 is provided with a horizontal reciprocating structure 553 (electric push rod) and four sliding bases 552 arranged along the horizontal direction and corresponding to the product pick-and-place structures 54 one by one; the tail sliding seat 552 is fixedly connected with the connecting plate 551, the rest sliding seats 552 are slidably connected with the connecting plate 551 through a guide rail assembly 554, the power part of the horizontal reciprocating motion structure 553 is connected with the head sliding seat 552, and the two adjacent sliding seats 552 are movably connected;

the product pick-and-place structures 54 are disposed on respective carriages 552. Under the driving of the horizontal reciprocating structure 553, all the sliders 552 are attached to or separated from each other to adjust the distance between the adjacent sliders 552, so as to facilitate the product taking and placing. The movable connection form is as follows: be equipped with lug 5521 on the slide 552, be equipped with spout 5522 on the adjacent slide 552, lug 5521 is located spout 5522, utilizes the principle that can link after lug 5521 and spout 5522 two cell walls butt on the horizontal direction to realize the promotion or the pulling of adjacent slide 552 of a slide 552, and then realizes the interval adjustment.

As shown in fig. 17 and 18, the multi-station turntable device 7 of the present embodiment includes a base 71, a rotary driving member 72 (DD motor) provided on the base 71, and a turntable 73 connected to a power portion of the rotary driving member 72; be equipped with eight frock installation positions with the station one-to-one on carousel 73, install circulation frock 74 on the frock installation position (in order to realize the quick replacement of circulation frock 74, can add the frock adjusting plate between circulation frock 74 and the carousel 73). Under the drive of the rotary driving member 72, the rotary disc 73 drives the eight circulation tools 74 to circulate among the eight stations.

In order to prevent the deformation of the rotary table 73 caused by the downward pressing of the auxiliary bending device 3 during the bending, two upward pushing mechanisms 75 corresponding to the first bending station 1b and the second bending station 1c one by one are additionally arranged in the product bending production line in the embodiment. The upward pushing mechanism 75 is located below the turntable 73, and specifically includes a support frame, a lifting cylinder disposed on the support frame, and a pushing column disposed in a power portion of the lifting cylinder.

A product clamping structure 741 for clamping a product is arranged on the circulation tool 74 in this embodiment, and the product clamping structure 741 includes a movable clamping block 744 rotatably mounted, a stationary clamping block 745 fixedly mounted, a transverse spring 742 having one end abutting against a side surface of the movable clamping block 744, and a vertical spring 743 having one end abutting against an upper surface of the movable clamping block 744; the lateral springs 742 and the vertical springs 743 are used to provide a spring force that causes the moving clamping block 744 to have a tendency to move towards the stationary clamping block 745.

In consideration of the particularity of the circulation tooling 74, the product bending production line of the embodiment is further provided with two tooling control mechanisms 76 which are in one-to-one correspondence with the feeding station 1a and the discharging station 1e, and the tooling control mechanisms 76 are located below the turntable 73 and are used for controlling the movable clamping block 744 in the product clamping structure 741 to move in the direction away from the static clamping block 745 and releasing the product so as to facilitate feeding and discharging.

As shown in fig. 19 and 20, the product is usually placed on different tools after being bent, and at present, the tools are mainly manually replaced, so that the production efficiency is reduced, and the production cost is increased; in order to overcome this problem, the present embodiment adds an automatic reversing tool function to the product conveying device 8. The product conveying device 8 in this embodiment includes a main conveyor belt mechanism 81, a sub conveyor belt mechanism 82, two tool positioning and jacking mechanisms 83, and two tool transfer mechanisms 84. Wherein, the main conveying belt mechanism 81 and the auxiliary conveying belt mechanism 82 are arranged side by side and have opposite conveying directions; the two tool positioning jacking mechanisms 83 are arranged from upstream to downstream along the conveying direction of the main conveying belt mechanism 81 and respectively correspond to the feeding joining station and the discharging joining station; the two tool positioning jacking mechanisms 83 are used for positioning and jacking the feeding tool or the discharging tool to enable the feeding tool or the discharging tool to be separated from the conveying belt of the main conveying belt mechanism 81, and are used for opening a product clamping structure (not shown in the figure) on the feeding tool or the discharging tool so as to facilitate feeding or discharging of a product; the two tooling transfer mechanisms 84 are positioned between the feeding joining station and the discharging joining station; the main conveying belt mechanism 81 is used for conveying feeding tools for carrying products to be bent, and one tool transferring mechanism 84 is used for jacking empty feeding tools (products are taken away by the product feeding device 5) and transferring the empty feeding tools onto the auxiliary conveying belt mechanism 82; the auxiliary conveyor belt mechanism 82 is used for conveying an empty blanking tool, the other tool transfer mechanism 84 is used for jacking the empty blanking tool and transferring the empty blanking tool to the main conveyor belt mechanism 81 (for receiving the pressure-maintained product sucked by the product blanking device 6), and the main conveyor belt mechanism 81 is used for continuously conveying the blanking tool bearing the pressure-maintained product; the specific transport path can be seen in fig. 12.

In order to scan the code assembly 34 with the first tool for binding and realizing the traceability of data, a second tool code scanning assembly 85 is arranged on the main conveying belt mechanism 81 corresponding to the feeding joining station. The main conveying belt mechanism 81, the auxiliary conveying belt mechanism 82 and the tool positioning jacking mechanism 83 can directly adopt the prior art; in addition, a plurality of groups of material stopping assemblies and optical fiber detection assemblies can be additionally arranged on the main conveying belt mechanism 81 and the auxiliary conveying belt mechanism 82 as required, which is not described herein again.

As shown in fig. 21, the tool transfer mechanism 84 in this embodiment includes a mounting frame 841, the main conveyor belt mechanism 81 and the slave conveyor belt mechanism 82 are located in the mounting frame 841, a transition transfer plate 842 is provided on top of the mounting frame 841, and the transition transfer plate 842 is located above the main conveyor belt mechanism 81 and the slave conveyor belt mechanism 82; two tool jacking mechanisms 844 corresponding to the main conveying belt mechanism 81 and the auxiliary conveying belt mechanism 82 in a one-to-one mode are installed on the installation frame 841, and an avoidance opening 843 matched with the tool jacking mechanisms 844 is formed in the transition transfer plate 842; the transition transfer plate 842 is provided with a horizontal push-pull structure for pushing or pulling a loading tool or a unloading tool from one tool jacking mechanism 844 to another tool jacking mechanism 844 through the transition transfer plate 842.

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 arrangement includes a support plate disposed on the transition transfer plate 842, a horizontal transfer member 845 (preferably an air cylinder or an electric cylinder) mounted on the support plate, and a push-pull plate 846 disposed on the horizontal transfer member 845. When a feeding tool or a discharging tool moves in place, the tool jacking mechanism 844 jacks up the feeding tool or the discharging tool to separate from the current conveying belt, the horizontal push-pull structure pushes or pulls the jacked feeding tool or the jacked discharging tool to the other tool jacking mechanism 844, then the tool jacking mechanism 844 resets downwards, and the feeding tool or the discharging tool is placed on the other conveying belt again.

Based on the structure, the work engineering of the product bending production line is briefly explained by taking the circulation of one circulation tool 74 among eight stations as an example:

a feeding tool bearing a product to be bent is conveyed to a tool positioning jacking mechanism 83 positioned at a feeding connection station through a main conveying belt mechanism 81; the tooling positioning jacking mechanism 83 positions and jacks up the loading tooling to separate the loading tooling from the conveying belt of the main conveying belt mechanism 81, and opens the product clamping structure on the loading tooling, so as to facilitate product loading, and meanwhile, the second tooling code scanning assembly 85 scans tooling codes and uploads the tooling codes to the system.

The product feeding device 5 acts, the product taking and placing structure 54 absorbs the products on the jacked feeding tool, the horizontal conveying structure 52 conveys the product taking and placing structure 54 carrying the products, and when the products are conveyed to the feeding station 1a, the product taking and placing structure 54 places the products on the circulation tool 74 on the multi-station turntable device 7 (the turntable 73) (before the products are placed, the tool control mechanism 76 controls the product clamping structure 741 to open, and after the products are placed, the product clamping structure 741 clamps the products). At the same time, the empty loading tool is transferred to the tool transfer mechanism 84, and then transferred to the slave conveyor mechanism 82.

The turntable 73 drives the circulation tool 74 carrying the product to continuously circulate to the first bending station 1 b; the first tool code scanning assembly 34 scans tool codes and uploads a system, the auxiliary bending device 3 is pressed down to act and press down a non-bending part of a product, then the vertical bending device 1 below a part (in a horizontal state) to be bent of the product acts, and under the driving of the vertical driving piece 13, the vertical bending structure 14 vertically bends the part to be bent of the product, and vertical bending can be performed for 1-2 times as required.

The turntable 73 drives the circulation tool 74 carrying the vertically bent product to continuously circulate to the second bending station 1c (the auxiliary bending device 3 is pressed down to reset during circulation), the auxiliary bending device 3 is pressed down to act again and press down the non-bending part of the product, then the horizontal bending device 2 located on one side of the approximately vertical bending part acts, the horizontal driving part 22 drives the horizontal bending structure 23 to horizontally bend the bending part which is bent vertically, and 1-2 times of horizontal bending can be performed as required.

The turntable 73 drives the circulation tool 74 to circulate to the pressure maintaining station 1d, the pressure maintaining device 4 acts, and the lifting electric cylinder 42 drives the pressure maintaining pressure head 44 to descend, so that the bending part which is horizontally bent is subjected to pressure maintaining, and the bending height and the position degree are ensured.

After the pressure maintaining is finished, the turntable 73 drives the circulation tool 74 to circulate to the discharging station 1e, and the product discharging device 6 takes the product from the circulation tool 74 (the tool control mechanism 76 controls the product clamping structure 741 to open before taking the product away), and then carries the product; the space-time blanking tool is transferred to the main conveying belt mechanism 81 when being conveyed from the conveying belt mechanism 82 and conveyed to the tool transferring mechanism 84, and is conveyed to the tool positioning jacking mechanism 83 corresponding to the blanking joining station through the main conveying belt mechanism 81, and the tool positioning jacking mechanism 83 positions and jacks up the blanking tool to separate the blanking tool from the conveying belt of the main conveying belt mechanism 81, and opens the product clamping structure on the blanking tool to facilitate product blanking; the product blanking device 6 places the products conveyed to the blanking connection station on a blanking tool; and then the main conveying belt mechanism 81 conveys the blanking tool carrying the product to the next station.

The turntable 73 drives the circulation tool 74 which is taken away the product to continuously circulate to the first empty station 1f, continuously circulate to the optical fiber detection station 1g, detect whether the product in the circulation tool 74 is taken away, continuously circulate to the second empty station 1k, and complete the circulation of feeding, bending, pressure maintaining, discharging and monitoring.

The bending pressure maintaining unit can bend a plurality of products simultaneously, so that the production efficiency is improved, the production cost is reduced, and the auxiliary bending device 3 is pressed down to press the products during bending, so that the product moving during bending can be prevented from influencing the bending effect of the products; moreover, the bending in two vertical directions is sequentially carried out step by step, then the pressure is maintained, the height, the position degree and the consistency of the bent product are easily ensured, and the yield of the product is ensured. In addition, the vertical bending device 1 and the horizontal bending device 2 can be adjusted in position and pose according to needs, and universality is improved. Moreover, a multi-station turntable device 7 is adopted in the product production line, the problem of more bending stations caused by horizontal arrangement is solved, the structure is simplified, the space is saved, and meanwhile, the beat requirement of the product process can be met; in addition, the product conveying device 8 is additionally provided with the function of an automatic switching tool, so that the ecological production efficiency can be further improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A bending and pressure maintaining unit is characterized by comprising a first bending device arranged at a first bending station, a second bending device arranged at a second bending station, a pressing auxiliary bending device corresponding to the first bending station and the second bending station, and a pressure maintaining device arranged at a pressure maintaining station;

2. The bending and pressure maintaining unit according to claim 1, wherein the first bending device is one of a vertical bending device and a horizontal bending device, and the second bending device is the other of the vertical bending device and the horizontal bending device.

3. The bending and pressure maintaining unit according to claim 2, wherein the vertical bending device comprises a first frame, a mounting plate vertically slidably mounted on the first frame, a vertical driving member mounted on the first frame for driving the mounting plate to move, a plurality of vertical bending structures mounted on the mounting plate, and an adjusting structure for independently adjusting the position of a bending component in the plurality of vertical bending structures.

4. The bending and pressure maintaining unit according to claim 3, wherein the vertical bending structure comprises a mounting seat, a vertical bending head rotatably mounted on the mounting seat, and a horizontally extending first elastic resetting member; the first elastic resetting piece is clamped between the vertical bending head and the mounting plate; one end of the vertical bending head is provided with a first rolling piece which is used for being in contact with a part to be bent of the product;

5. The bending and pressure maintaining unit according to claim 3, wherein a limit stop is arranged at the top of the first frame, and a hydraulic buffer is arranged on the limit stop;

6. The bending and pressure maintaining unit according to claim 2, wherein the horizontal bending device comprises a second frame and a plurality of horizontal driving members arranged at intervals at the top of the second frame; and a horizontal bending structure with adjustable pose is arranged on the horizontal driving piece.

7. The bending and pressure maintaining unit according to claim 6, wherein the horizontal bending structure comprises a base, a horizontal bending head is rotatably mounted on the base, a second elastic reset member extending vertically is clamped between the horizontal bending head and a power portion of the horizontal driving member, and a second rolling member used for contacting with a bending portion of the product is arranged at one end of the horizontal bending head;

8. The bending and pressure maintaining unit according to claim 2, wherein the auxiliary bending device comprises a support, a connecting plate is arranged at the top of the support, and two pressing mechanisms corresponding to the first bending station and the second bending station in a one-to-one manner are arranged on the connecting plate;

9. A product bending production line is characterized by comprising a multi-station turntable device, a product conveying device, a product feeding device, a product discharging device and the bending pressure maintaining unit according to any one of claims 1 to 8;

10. The product bending line according to claim 9, wherein the multi-station turntable device includes a base, a rotary driving member disposed on the base, and a turntable connected to a power portion of the rotary driving member; the rotary table is provided with a plurality of tool mounting positions corresponding to the stations one to one, and the tool mounting positions are provided with the circulation tools.

11. The product bending line according to claim 10, further comprising two jacking mechanisms and two tooling control mechanisms;

12. The product bending line according to claim 9, wherein the product loading device is the same as the product unloading device; each of the lifting mechanisms comprises an upright post, a horizontal conveying structure arranged on the upright post, a lifting structure arranged on the horizontal conveying structure, a plurality of product taking and placing structures arranged on the lifting structure and a variable-interval adjusting mechanism for adjusting the interval between the product taking and placing structures;

13. The product bending line according to claim 12, wherein the variable-pitch adjustment mechanism includes a connecting plate disposed on the lifting structure, the connecting plate having a horizontal reciprocating structure and a plurality of slides arranged in a horizontal direction and in one-to-one correspondence with the product pick-and-place structures,

14. The product bending production line according to claim 9, wherein the product conveying device comprises a main conveying belt mechanism, a secondary conveying belt mechanism, two tool positioning and jacking mechanisms and two tool transferring mechanisms;

15. The product bending line according to claim 14, wherein the tooling transfer mechanism includes a mounting frame, a transition transfer plate is disposed on a top of the mounting frame, and the transition transfer plate is located above the main conveyor belt mechanism and the slave conveyor belt mechanism;