CN114160633B - Bending pressure maintaining unit and product bending production line - Google Patents

Abstract

The invention discloses a bending pressure maintaining unit and a product bending production line, 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 both the first bending station and the second bending station and a pressure maintaining device arranged at the pressure maintaining station; under the assistance of the pushing auxiliary bending device, the first bending device simultaneously bends the to-be-bent parts of a plurality of products in a first direction, and the second bending device continuously simultaneously bends the bent parts which are bent in the first direction in a second direction, wherein the first direction and the second direction are vertical; the pressure maintaining device is used for simultaneously maintaining pressure on all the bending 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. 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.

Description

Bending pressure maintaining unit and product bending production line

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 process of assembling and producing the shell of the micro electroacoustic product, because of the requirement of the product function, a conductive elastic sheet is usually arranged on the electroacoustic element, one end of the conductive elastic sheet is electrically connected with the internal electronic component of the electroacoustic element, and the other end of the conductive elastic sheet is electrically connected with an external electronic circuit. According to the technological requirements of the product, one end electrically connected with an external electronic circuit is required to bend the conducting spring plate. The contact part (with a certain elastic potential energy due to extrusion) of the bent conducting spring plate is used for realizing the tight electrical 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 spring sheet are required to be high.

The prior bending device has poor stability, can not meet the higher requirements of the height, the position degree, the consistency and the like of the bent conducting spring piece, and influences the yield of products; the existing bending device only bends single products, and the factors affecting bending quality are much smaller, but the efficiency is low, the productivity is low, the cost is high, and the requirement of mass industrial production cannot be met. 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 technology.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and solves the technical problems of providing a bending pressure maintaining unit and a product bending production line, which have high efficiency, ensure the height, the position degree and the consistency of the bent product and improve the yield of the product.

In order to solve at least one technical problem in the prior art, an embodiment of the invention provides a bending pressure maintaining unit, which 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 both the first bending station and the second bending station, and a pressure maintaining device arranged at the pressure maintaining station;

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

the pressure maintaining device is used for simultaneously maintaining pressure of all the bending 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, vertical bending device includes first frame, vertical slidable mounting be in mounting panel in the first frame, install in the first frame be used for the drive the vertical driving piece of mounting panel motion, install a plurality of vertical bending structures on the mounting panel and be used for a plurality of the adjustment structure that the bending part in the vertical bending structure carries out independent position appearance adjustment.

Further, the vertical bending structure comprises a mounting seat, a vertical bending head rotatably mounted on the mounting seat and a first elastic reset piece extending horizontally; the first elastic reset 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 contacting with a part to be bent of the product;

the adjusting structure comprises an adjusting plate which is connected with the mounting seats at least at the head and the tail, adjusting pieces which are in one-to-one correspondence with the vertical bending heads are screwed on the adjusting plate, and the adjusting pieces are abutted with one side of the vertical bending heads, which is away from the mounting plate, and are used for enabling the vertical bending heads to rotate so as to achieve pose adjustment.

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

a tension spring extending vertically 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 frame and a plurality of horizontal driving pieces which are arranged at the top of the second frame at intervals; the horizontal driving piece is provided with a horizontal bending structure with an adjustable pose.

Further, the horizontal bending structure comprises a base, a horizontal bending head is rotatably arranged 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;

the base above the horizontal bending head is provided with an adjusting component which is abutted with the horizontal bending head and used for enabling the horizontal bending head to rotate so as to realize pose adjustment.

Further, the pressing auxiliary bending device comprises a support, a connecting plate is arranged at the top of the support, and two pressing mechanisms which are in one-to-one correspondence with the first bending stations and the second bending stations are arranged on the connecting plate;

The pushing mechanism comprises a mounting frame vertically and slidably mounted on the connecting plate, a driving structure arranged on the connecting plate and used for driving the mounting frame to vertically move, and a floating pressure head assembly arranged on the mounting frame.

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 a bending pressure maintaining unit;

the periphery of the multi-station turntable device is at least sequentially provided with a feeding station, the first bending station, the second bending station, the pressure maintaining station and a discharging station 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 a plurality of stations in sequence;

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

the product feeding device is used for carrying the product on the feeding connection station to the circulation tool which has circulated to the feeding station;

the product blanking device is used for conveying the product which is conveyed to the blanking connecting station and has completed pressure maintaining on the circulation tool which is conveyed to the blanking connecting 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 by one, and the tool mounting positions are provided with the circulation tools.

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

the two jacking mechanisms are in one-to-one correspondence with the first bending station and the second bending station, are positioned below the turntable and are used for preventing the turntable from being deformed due to the downward pressing of the downward pressing auxiliary bending device;

the two tool control mechanisms are in one-to-one correspondence with the feeding stations and the discharging stations, are positioned below the rotary table and are used for controlling the product clamping structure on the flow tool to act so as to facilitate feeding and discharging.

Further, the product feeding device is the same as the product discharging device; the device comprises a stand column, a horizontal carrying structure arranged on the stand column, a lifting structure arranged on the horizontal carrying structure, a plurality of product taking and placing structures arranged on the lifting structure, and a variable-spacing adjusting mechanism for adjusting the spacing between the plurality of 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, the connecting plate is provided with a horizontal reciprocating motion structure and a plurality of sliding seats which are arranged along the horizontal direction and are in one-to-one correspondence with the product taking and placing structures,

the sliding seat at the tail end is fixedly connected with the connecting plate, the rest sliding seats are in sliding connection with the connecting plate, the power part of the horizontal reciprocating motion structure is connected with the sliding seat at the head end, and two adjacent sliding seats are movably connected; all the sliding seats are mutually attached or separated under the drive of the horizontal reciprocating motion structure so as to adjust the interval 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 jacking mechanisms and two tool transferring mechanisms;

the main conveyor belt mechanism and the auxiliary conveyor belt mechanism are arranged side by side and have opposite conveying directions;

the two tooling 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 connection station and the discharging connection station; the two tool positioning and jacking mechanisms are used for positioning and jacking a feeding tool or a discharging tool to separate the feeding tool or the discharging tool from the main conveying belt mechanism, so that feeding or discharging of products is facilitated;

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

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

the secondary conveying belt mechanism is used for conveying the empty blanking tool, the other tool transferring mechanism is used for jacking up and transferring the empty blanking tool to the primary conveying belt mechanism, and the primary conveying belt mechanism is used for continuously conveying the blanking tool for bearing the products after pressure maintaining.

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

two tooling jacking mechanisms which are in one-to-one correspondence with the main conveying belt mechanism and the auxiliary conveying belt mechanism are arranged on the mounting frame, and an avoidance port matched with the tooling jacking mechanisms is formed in the transition transfer plate;

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

By adopting the technical scheme, the invention has the following beneficial effects:

the bending 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 both the first bending station and the second bending station and a pressure maintaining device arranged at the pressure maintaining station; under the assistance of the pushing auxiliary bending device, the first bending device is used for simultaneously bending the to-be-bent parts of a plurality of products in a first direction, the second bending device is used for simultaneously bending the bent parts of the products which are bent in the first direction in a second direction, and the first direction is perpendicular to the second direction; the pressure maintaining device is used for simultaneously maintaining pressure for all the bending 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, and secondly, the auxiliary bending device is pressed when bending, so that the influence of product movement on the bending effect of the products can be prevented when bending; and moreover, bending in two vertical directions is sequentially and step by step, then pressure is maintained, so that the requirements of high height, position degree, consistency and the like after bending are met easily, and the yield of products is ensured. The multi-station turntable device can save space and meet the beat requirement of the product process.

In conclusion, the bending machine 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.

Drawings

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

FIG. 2 is a schematic view of the vertical bending apparatus of FIG. 1;

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

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

FIG. 5 is a cross-sectional view of the rotational connection of the mounting block and the vertical bending head 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 mounting structure of the horizontal bending structure and the horizontal driving member of FIG. 6;

FIG. 8 is a cross-sectional view of the swivel connection of the base and the horizontal bending head of FIG. 7;

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

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

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

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

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

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

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

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

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

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

FIG. 19 is a schematic view of the product conveying apparatus of FIG. 12;

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

FIG. 21 is a schematic view of the construction of the work transfer mechanism of FIG. 19;

in the figure: 1-vertical bending device, 11-first frame, 12-mounting plate, 13-vertical driving piece, 14-vertical bending structure, 141-mounting seat, 1411-pivot structure, 1412-bearing, 1413-bearing adjusting ring, 1414-bearing adjusting ring, 142-vertical bending elbow, 1421-vertical portion, 1422-transverse portion, 1423-first rolling piece, 143-a first elastic resetting piece, 15-an adjusting structure, 151-an adjusting plate, 152-an adjusting piece, 16-a limit locking structure, 161-a limit seat, 162-a limit through groove, 163-a locking piece, 17-a sliding rail and sliding block structure, 18-a limit stop block, 181-a hydraulic buffer, 182-a limit screw, 19-a tension spring and a 2-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 elbow, 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 pushing auxiliary bending device, 31-a support, 32-a connecting plate, 321-a first linear bearing, 33-a pushing mechanism, 331-a mounting frame, 3311-a base plate, 3312-a U-shaped seat, 3313-a second linear bearing, 332-a floating press head component, 3321-a connecting shaft, 3322-spring, 3323-ram, 333-guide shaft, 334-drive structure, 34-first tooling sweep assembly, 4-pressure maintaining device, 41-bracket, 42-lift cylinder, 43-connection base, 44-pressure maintaining ram, 5-product loading device, 51-upright, 52-horizontal handling structure, 53-lift structure, 54-product pick-and-place structure, 541-rotating motor, 542-sleeve, 543-floating spring, 544-suction nozzle mount, 545-suction nozzle, 55-variable pitch adjustment mechanism, 551-connection plate, 552-slide, 5521-bump, 5522-chute, 553-horizontal reciprocation structure, 554-guide rail assembly, 6-product blanking device, 7-multi-station turntable device, 71-base, 72-rotating drive member, 73-turntable, 74-transfer tooling, 741-product clamping structure, 742-transverse spring, 743-vertical spring, 744-dynamic clamping block, 745-static clamping block, 75-jacking mechanism, 76-tooling control mechanism, 8-product conveyor, 81-main belt mechanism, 82-strip-transfer tooling, 84-frame-1-frame-846-transition jack-frame-1, 846-transition jack-frame-846-displacement mechanism, 846-jack-frame-1, 846-transition jack-frame-1-jack-frame-1, 1 d-pressure maintaining station, 1 e-blanking station, 1 f-first empty station, 1 g-optical fiber detection station and 1 k-second empty station.

Description of the embodiments

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Embodiment one:

as shown in fig. 1, the present embodiment discloses a bending 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 pressing auxiliary bending device 3 corresponding to both 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; the first bending device is used for simultaneously bending the to-be-bent parts of a plurality of products (four products are shown in the drawing) in a first direction under the assistance of the pressing auxiliary bending device 3, and the second bending device is used for continuously simultaneously bending the bent parts of the four products which are bent in the first direction in a second direction, wherein the first direction is perpendicular to the second direction; the pressure maintaining device 4 is used for simultaneously maintaining the pressure of the bending parts of all the products which are bent in the second direction, and the state of the bending parts after the pressure maintaining can be seen in fig. 17.

Wherein the first bending device is one of the vertical bending device 1 and the 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, and in this embodiment, the first direction is a vertical direction, and the second direction is a horizontal direction.

As shown in fig. 2 to 5 together, 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 and slide block structure 17, a vertical driving member 13 (preferably a cylinder or an electric cylinder) mounted on the first frame 11 for driving the movement of the mounting plate 12, the vertical driving member 13 and the mounting plate 12 being connected by means of a floating joint), four vertical bending structures 14 mounted on the mounting plate 12, and an adjustment structure 15 for performing independent posture adjustment of 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 piece 13 can drive the vertical bending structure 14 to perform bending operation on the part to be bent (horizontal state) of the product for 1-2 times under the 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 member), and a first elastic restoring member 143 (a cylindrical spring) extending horizontally. Wherein the vertical bending head 142 comprises a vertical part 1421 and a transverse part 1422 which are connected; the vertical portion 1421 is rotationally connected with the mounting seat 141, and one end of the transverse portion 1422 is provided with a first rolling member 1423 (preferably a roller or a bearing, and sliding friction when contacting with a product is changed into rolling friction, so that the appearance that the vertical bending head 142 scratches the product when bending) is used for contacting with the portion to be bent on the product. 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 vertical portion 1421 of the vertical bending head 142 and the mounting plate 12 are provided with receiving grooves adapted to the end portions of the first elastic restoring member 143.

In this embodiment, the specific implementation structure of the rotational connection between the vertical portion 1421 and the mounting seat 141 is: the mounting base 141 is provided with a horizontally extending pivot structure 1411, and a vertical portion 1421 of the vertical bending head 142 is rotatably mounted on the pivot structure 1411 (preferably a bolt with a light section and a screw section) by means of two bearings 1412 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 two mounting seats 141 at the front and the rear (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 elbow 142 one by one is screwed on the adjusting plate 151, and the adjusting member 152 is abutted to one side of the vertical bending elbow 142 (vertical portion 1421) away from the mounting plate 12, so as to rotate the vertical bending elbow 142 around the rotation center in the vertical plane to realize pose adjustment, which can meet the requirements of bending precision, position and consistency of four products that are bent simultaneously.

In the posture adjustment, in order to limit the rotation amplitude of the vertical bending elbow 142 and ensure the stability after adjustment; the embodiment further optimizes the structure; a limiting and locking structure 16 for limiting and locking the vertical bending head 142 is arranged at the top of the mounting seat 141; the limit locking structure 16 comprises a limit seat 161, a limit through groove 162 for extending out of the vertical bending head 142 is arranged on the limit seat 161, and a locking piece 163 (locking bolt) is screwed on the limit seat 161; one end of the locking member 163 extends into the limiting slot 162 and abuts against the vertical portion 1421 of the vertical bending head 142 to lock.

In order to ensure the relative position of the vertical bending structure 14 and the product and reduce factors affecting bending precision, position degree and consistency; in this embodiment, four positioning grooves (not shown in the drawing) are provided on the mounting plate 12 at equal intervals, and the mounting seats 141 in the vertical bending structure 14 are mounted in the corresponding positioning grooves.

In order to ensure the strength and speed of the vertical bending structure 14 in the forward critical position and the backward critical position, the damage to the product or the device caused by the excessive speed and the excessive impact force is prevented; the embodiment is further optimized for the structure, the top of the first frame 11 is provided with a limit stop 18, and the limit stop 18 is provided with a hydraulic buffer 181 and a limit screw 182 for being matched with the mounting plate 12; a vertically extending tension spring 19 is provided between the lower end of the mounting plate 12 and the bottom of the first frame 11.

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

The horizontal bending structure 23 includes a base 231, a horizontal bending head 232 is rotatably installed on the base 231, and a second elastic reset piece 233 extending vertically is sandwiched between the horizontal bending head 232 and the base 221; wherein, one end of the horizontal bending elbow 232 is provided with a second rolling member 234 (preferably a roller or a bearing, which changes the sliding friction with the product into rolling friction when the second rolling member contacts with the bending portion (vertical state) of the product during bending, so that the bending state is more stable and the product appearance can be prevented from being scratched).

Wherein, the base 231 comprises a vertical plate 2311 and an adjusting plate 2312 arranged at the top of the vertical plate 2311 and positioned above the horizontal bending head 232; the horizontal bending elbow 232 is rotationally connected with the vertical plate 2311, the adjusting plate 2312 is provided with an adjusting component 24, the adjusting component 24 is abutted with the horizontal bending elbow 232 and used for enabling the horizontal bending elbow 232 to rotate around a rotation center in a vertical plane so as to realize pose adjustment, and the bending precision and position requirements of simultaneously bending four products 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; also included is an adjustment bolt 242 threaded onto adjustment plate 2312 for coarse adjustment.

In this embodiment, the specific implementation structure of the rotational connection between the horizontal bending elbow 232 and the vertical plate 2311 is: a pivot 235 is arranged on the vertical plate 2311 of the base 231, and the horizontal bending elbow 232 is rotatably arranged on the pivot 235; the two ends of the pivot 235 are provided with axial limiting structures 236 respectively abutting against the horizontal bending elbow 232 and the vertical plate 2311, and the pivot 235 between the horizontal bending 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, a positioning groove (not shown in the figure) is provided on the base plate 221 in this embodiment, and the base 231 is mounted in the positioning groove. In order to prevent the second elastic restoring member 233 from being distorted during the posture adjustment, the top of the base plate 221 and the bottom of the horizontal bending head 232 are provided with accommodating grooves adapted to the end portions of the second elastic restoring member 233.

As shown in fig. 1, 9 and 10 together, the pressing auxiliary bending device 3 in this embodiment is used for fixing the non-bending part of the product, so as to prevent the product from jumping during bending to affect the bending precision and position degree; the bending machine 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 hold-down mechanism 33 includes a mounting bracket 331 vertically slidably mounted on the connecting plate 32, a driving structure 334 (preferably a cylinder or an electric cylinder, connected to the mounting bracket 331 by means of a floating joint) provided on the connecting plate 32 for driving the mounting bracket 331 to move vertically, and a floating ram assembly 332 provided on the mounting bracket 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 added on the connecting plate 32, and a guiding shaft 333 is disposed on the mounting frame 331, where the guiding shaft 333 is slidably connected with the first linear bearing 321.

In this embodiment, the mounting rack 331 includes a bottom plate 3311 connected to the driving structure 334, four U-shaped seats 3312 disposed on the bottom plate 3311 at intervals with openings facing downward, and a second linear bearing 3313 disposed on the bottom plate at the opening of the U-shaped seats 3312. The floating ram 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 ram 3323 arranged at the bottom end of the connecting shaft 3321; the U-shaped seat 3312 at one end of the spring 3322 is abutted against the annular limiting table on the connecting shaft 3321 at the other end. 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 first tooling code scanning component 34 is integrated on the connecting plate 32 in this embodiment and is used for binding the tooling codes on the tooling before bending and uploading the tooling codes, so that the data after bending can be traced, the first tooling code scanning component 34 can adopt the prior art, and the description is omitted here.

As shown in fig. 11, the pressure maintaining device 4 in this embodiment includes a bracket 41, a lifting cylinder 42 provided on the bracket 41, a connecting seat 43 connected to a power portion of the lifting cylinder 42, and four pressure maintaining pressure heads 44 provided on the connecting seat 43 at intervals. After bending, the pressure is maintained, the bending effect can be ensured, the bending precision and the bending position degree are prevented from being influenced by rebound, and the bending part is approximately in a horizontal state after the pressure is maintained.

The bending pressure maintaining unit can simultaneously bend a plurality of products, so that the production efficiency is improved, the production cost is reduced, and secondly, the auxiliary bending device 3 is pressed to press the products when bending, so that the influence of product movement on the bending effect of the products can be prevented when bending; and moreover, bending in two vertical directions is sequentially and step by step, then pressure is maintained, so that the requirements of high height, position degree, consistency and the like after bending are met easily, and the yield of products is ensured.

Embodiment two:

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

The periphery of the multi-station turntable device 7 is sequentially provided with 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 blank station 1f, an optical fiber detection station 1g and a second blank station 1k in a surrounding manner; the multi-station turntable device 7 is used for driving a plurality of circulation tools 74 for loading products to circulate among eight stations in turn (anticlockwise); thereby the products are subjected to corresponding treatment in eight stations in turn.

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

The product feeding device 5 is used for conveying the product on the feeding engagement station to the circulation tool 74 which is already in circulation to the feeding station 1 a; the product blanking device 6 is used for conveying the pressure-maintaining product on the circulation tool 74 which flows to the blanking station 1e to the blanking engagement station.

As shown in fig. 14 to 16, in this embodiment, the product loading device 5 and the product unloading device 6 have the same structure and different positions; the product loading device 5 is described in detail below by taking the product loading device 5 as an example, and the product loading device 5 includes a vertical column 51, a horizontal carrying structure 52 (preferably an electric cylinder) disposed on the vertical column 51, a lifting structure 53 disposed on the horizontal carrying structure 52, four product picking and placing structures 54 disposed on the lifting structure 53, and a variable-spacing adjusting mechanism 55 for adjusting the spacing between the four product picking and placing structures 54.

The product picking and placing structure 54 is used for picking up a product and driving the product to rotate so as to adjust the angle of the product. Specifically, the rotary motor 541, the bushing 542, the sliding shaft, the floating spring 543, the nozzle mount 544, and the nozzle 545 are included. 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 the suction nozzle mounting seat 544, and the suction nozzle 545 is mounted 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 nozzle mount 544.

The variable-spacing adjusting mechanism 55 comprises a connecting plate 551 arranged on the power part of the lifting structure 53, and the connecting plate 551 is provided with a horizontal reciprocating motion structure 553 (an electric push rod) and four sliding seats 552 which are arranged along the horizontal direction and are in one-to-one correspondence with the product taking and placing structures 54; the sliding seat 552 at the tail end is fixedly connected with the connecting plate 551, the rest sliding seats 552 are in sliding connection with the connecting plate 551 by virtue of a guide rail assembly 554, the power part of the horizontal reciprocating motion structure 553 is connected with the sliding seat 552 at the head end, and two adjacent sliding seats 552 are movably connected;

the product handling structure 54 is disposed on a corresponding slide 552. All the sliding bases 552 are mutually attached or separated under the driving of the horizontal reciprocating motion structure 553 so as to adjust the interval between the adjacent sliding bases 552, thereby being convenient for taking and placing products. The movable connection mode is as follows: the sliding seat 552 is provided with the protruding blocks 5521, the adjacent sliding seat 552 is provided with the sliding grooves 5522, the protruding blocks 5521 are positioned in the sliding grooves 5522, and the pushing or pulling of one sliding seat 552 to the adjacent sliding seat 552 is realized by utilizing the principle that the protruding blocks 5521 and the sliding grooves 5522 can be linked after being abutted to each other along two groove walls in the horizontal direction, so that the distance adjustment is realized.

As shown collectively in fig. 17 and 18, the multi-station carousel device 7 in the present embodiment includes a base 71, a rotary drive member 72 (DD motor) provided on the base 71, and a carousel 73 connected to a power portion of the rotary drive member 72; eight tooling installation positions corresponding to the stations one by one are arranged on the turntable 73, and a circulation tooling 74 is arranged on the tooling installation positions (in order to realize quick replacement of the circulation tooling 74, a tooling adjusting plate can be additionally arranged between the circulation tooling 74 and the turntable 73). Driven by the rotary driving member 72, the turntable 73 drives the eight circulation tools 74 to circulate between the eight stations.

In order to prevent the turntable 73 from being deformed due to the downward pressing of the downward pressing auxiliary bending device 3, two upward pushing mechanisms 75 corresponding to the first bending station 1b and the second bending station 1c are additionally arranged in the product bending production line. The jacking mechanism 75 is located below the turntable 73, and specifically includes a support frame, a lifting cylinder disposed on the support frame, and a jack post disposed on a power portion of the lifting cylinder.

The product clamping structure 741 for clamping the product is arranged on the circulation tool 74 in the embodiment, and the product clamping structure 741 comprises a movable clamping block 744 rotatably arranged, a fixed clamping block 745 fixedly arranged, a transverse spring 742 with one end abutting against the side surface of the movable clamping block 744, and a vertical spring 743 with one end abutting against the upper surface of the movable clamping block 744; the lateral springs 742 and the vertical springs 743 serve to provide an elastic force that tends to move the movable clamping block 744 toward the stationary clamping block 745.

Considering the particularity of the above-mentioned circulation tool 74, the product bending production line of this embodiment further adds two tool control mechanisms 76 corresponding to the feeding station 1a and the discharging station 1e one by one, where the tool control mechanisms 76 are located below the turntable 73 and are used to control the moving clamping blocks 744 in the product clamping structure 741 to move away from the static clamping blocks 745, and release the product so as to facilitate feeding and discharging.

As shown in fig. 19 and fig. 20 together, products are bent and then usually need to be placed on different tools, and at present, the tools are manually switched, so that the production efficiency is reduced, and the production cost is increased; in order to overcome this problem, the present embodiment adds a function of an automatic switching tool to the product conveying device 8. The product conveying device 8 in this embodiment includes a master conveyor mechanism 81, a slave conveyor mechanism 82, two tooling positioning jack-up mechanisms 83, and two tooling transfer mechanisms 84. Wherein the main conveyor belt mechanism 81 and the auxiliary conveyor belt mechanism 82 are arranged side by side and have opposite conveying directions; the two tooling 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 a feeding engagement station and a discharging engagement station; the two tool positioning and jacking mechanisms 83 are used for positioning and jacking the feeding tool or the blanking tool to separate 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 blanking tool so as to facilitate product feeding or blanking; the two tooling transfer mechanisms 84 are positioned between the feeding engagement station and the discharging engagement station; the main conveyor mechanism 81 is used for conveying the feeding tools carrying the products to be bent, and one tool transfer mechanism 84 is used for jacking up the empty feeding tools (the products are taken away by the product feeding device 5) and transferring the empty feeding tools onto the sub-conveyor mechanism 82; the slave conveyor 82 is used for conveying empty blanking tools, the other tool transfer mechanism 84 is used for jacking up the empty blanking tools and transferring the empty blanking tools to the main conveyor 81 (products after pressure maintaining and sucked by the product blanking device 6 are ready to be received), and the main conveyor 81 is used for continuously conveying the blanking tools carrying the products after pressure maintaining; the specific conveying path can be seen in fig. 12.

In order to bind the first tooling code scanning component 34 and achieve data traceability, a second tooling code scanning component 85 is arranged on the main conveyor mechanism 81 corresponding to the feeding engagement station. The main conveyor belt mechanism 81, the auxiliary conveyor belt mechanism 82 and the tool positioning and jacking mechanism 83 can directly adopt the prior art; in addition, the main conveyor belt mechanism 81 and the auxiliary conveyor belt mechanism 82 may be additionally provided with a plurality of sets of material blocking components and optical fiber detection components as required, and details thereof will not be described herein.

As shown in fig. 21, the tooling transfer mechanism 84 in this embodiment includes a mounting frame 841, a main conveyor belt mechanism 81 and a sub-conveyor belt mechanism 82 are located in the mounting frame 841, and a transition transfer plate 842 is disposed on top of the mounting frame 841, and the transition transfer plate 842 is located above the main conveyor belt mechanism 81 and the sub-conveyor belt mechanism 82; the mounting frame 841 is provided with two tool jacking mechanisms 844 which are in one-to-one correspondence with the main conveying belt mechanism 81 and the auxiliary conveying belt mechanism 82, and the transition transfer plate 842 is provided with an avoidance port 843 which is matched with the tool jacking mechanisms 844; the transition transfer plate 842 is provided with a horizontal push-pull structure for pushing or pulling a loading tool or a blanking tool from one tool jack-up mechanism 844 to the other tool jack-up mechanism 844 through the transition transfer plate 842.

Wherein, frock jack-up mechanism 844 includes the installing support, sets up the lift cylinder on the installing support and sets up the layer board on the lift cylinder. The horizontal push-pull structure includes a support plate disposed on the transition transfer plate 842, a horizontal transfer member 845 (preferably a cylinder or an electric cylinder) mounted on the support plate, and a push-pull plate 846 disposed on the horizontal transfer member 845. When the feeding tool or the discharging tool moves in place, the tool jacking mechanism 844 jacks the feeding tool or the discharging tool out of the current conveying belt, the horizontal push-pull structure pushes or pulls the jacked feeding tool or blanking tool to the other tool jacking mechanism 844, and then the tool jacking mechanism 844 resets downwards to place the feeding tool or the blanking tool on the other conveying belt again.

Based on the above structure, the working engineering of the product bending production line will be briefly described by taking the transfer of one transfer tool 74 between eight stations as an example:

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

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

The turntable 73 drives the circulation tool 74 carrying the product to continue circulation to the first bending station 1b; the first tooling code scanning component 34 scans the tooling codes and uploads the system, the auxiliary bending device 3 is pressed downwards to act, the non-bending part of the product is pressed downwards, then the vertical bending device 1 positioned below the part (horizontal state) to be bent of the product acts, the vertical bending structure 14 vertically bends the part to be bent of the product under the driving of the vertical driving piece 13, and 1-2 times of vertical bending can be executed according to the requirement.

The turntable 73 drives the circulation tool 74 carrying the vertically bent product to continue circulation to the second bending station 1c (the circulation is carried out, the downward pressing auxiliary bending device 3 is reset), the downward pressing auxiliary bending device 3 acts again to press the non-bending part of the product, then the horizontal bending device 2 located at one side of the approximately vertical bending part acts, the horizontal driving piece 22 drives the horizontal bending structure 23 to horizontally bend the bending part which is vertically bent, and 1-2 times of horizontal bending can be executed according to the requirement.

The turntable 73 drives the circulation tool 74 to circulate to the pressure maintaining station 1d, the pressure maintaining device 4 acts, the lifting cylinder 42 drives the pressure maintaining pressure head 44 to descend, the pressure maintaining is carried out on the bending part which is horizontally bent, 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 blanking station 1e, and the product blanking device 6 takes away the product on the circulation tool 74 (a tool control mechanism 76 controls a product clamping structure 741 to be opened before taking away the product) and then carries the product; the space-time blanking tool is transferred to the main conveying belt mechanism 81 when conveyed from the conveying belt mechanism 82 to the tool transferring mechanism 84, and conveyed to the tool positioning and jacking mechanism 83 corresponding to the blanking engagement station through the main conveying belt mechanism 81, and the tool positioning and jacking mechanism 83 positions and jacks the blanking tool to separate from the conveying belt of the main conveying belt mechanism 81, and opens the product clamping structure on the blanking tool, so that the blanking of products is facilitated; the product blanking device 6 places the product conveyed to the blanking connecting station on a blanking tool; the main conveyor mechanism 81 then conveys the product carrying blanking tooling to the next station.

The turntable 73 drives the transfer tool 74 from which the product is taken to continue to transfer to the first empty station 1f, continues to transfer to the optical fiber detection station 1g, detects whether the product in the transfer tool 74 is taken away, continues to transfer to the second empty station 1k, and completes one cycle of feeding, bending, pressure maintaining, blanking 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 secondly, the auxiliary bending device 3 is pressed to press the products when bending, so that the influence of product movement on the bending effect of the products can be prevented when bending; and moreover, bending in two vertical directions is sequentially and step by step, then pressure is maintained, the height, the position degree and the consistency of the bent product are ensured easily, and the yield of the product is ensured. In addition, the vertical bending device 1 and the horizontal bending device 2 can be adjusted according to the pose, so that the universality is improved. Furthermore, the multi-station turntable device 7 is adopted in the product production line, so that the problem of a plurality of bending stations caused by horizontal arrangement is solved, the structure is simplified, the space is saved, and the beat requirement of the product process can be met; in addition, the function of an automatic switching tool is added to the product conveying device 8, so that the ecological production efficiency can be further improved.

In conclusion, the bending machine 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.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The bending 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 both the first bending station and the second bending station and a pressure maintaining device arranged at the pressure maintaining station; the first bending device is used for simultaneously bending the to-be-bent parts of a plurality of products in a first direction under the assistance of the pushing-down auxiliary bending device, the second bending device is used for simultaneously bending the bent parts which are bent in the first direction in a second direction, and the first direction is perpendicular to the second direction; the pressure maintaining device is used for simultaneously maintaining pressure of all the bending parts which are bent in the second direction;

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; the horizontal bending device comprises a second frame and a plurality of horizontal driving parts which are arranged at the top of the second frame at intervals; the horizontal driving piece is provided with a horizontal bending structure with an adjustable pose; the horizontal bending structure comprises a base, a horizontal bending head is rotatably arranged 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 one end of the horizontal bending head is provided with a second rolling piece which is used for contacting with a bending part of the product; an adjusting component is arranged on the base above the horizontal bending head and is abutted with the horizontal bending head and used for enabling the horizontal bending head to rotate so as to realize pose adjustment;

The vertical bending device comprises a first frame, a mounting plate vertically and slidably mounted on the first frame, a vertical driving piece mounted on the first frame 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 independently adjusting the positions and the postures of bending parts in the plurality of vertical bending structures; the vertical bending structure comprises a mounting seat, a vertical bending head rotatably mounted on the mounting seat and a first elastic reset piece extending horizontally; the first elastic reset 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 contacting with a part to be bent of the product; the adjusting structure comprises an adjusting plate which is connected with the mounting seats at least at the head and the tail, adjusting pieces which are in one-to-one correspondence with the vertical bending heads are screwed on the adjusting plate, and the adjusting pieces are abutted with one side of the vertical bending heads, which is away from the mounting plate, and are used for enabling the vertical bending heads to rotate so as to achieve pose adjustment.

2. The bending dwell unit according to claim 1, characterized in that the top of the first frame is provided with a limit stop, which is provided with a hydraulic buffer;

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

3. The bending pressure maintaining unit according to claim 1, wherein the pressing auxiliary bending device comprises a support, a connecting plate is arranged at the top of the support, and two pressing mechanisms which are in one-to-one correspondence with the first bending station and the second bending station are arranged on the connecting plate;

the pushing mechanism comprises a mounting frame vertically and slidably mounted on the connecting plate, a driving structure arranged on the connecting plate and used for driving the mounting frame to vertically move, and a floating pressure head assembly arranged on the mounting frame.

4. A product bending production line, which is characterized by comprising a multi-station turntable device, a product conveying device, a product feeding device, a product discharging device and a bending pressure maintaining unit according to any one of claims 1-3;

the periphery of the multi-station turntable device is at least sequentially provided with a feeding station, the first bending station, the second bending station, the pressure maintaining station and a discharging station 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 a plurality of stations in sequence;

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

the product feeding device is used for carrying the product on the feeding connection station to the circulation tool which has circulated to the feeding station;

the product blanking device is used for conveying the product which is conveyed to the blanking connecting station and has completed pressure maintaining on the circulation tool which is conveyed to the blanking connecting station.

5. The product bending production line according to claim 4, wherein the multi-station turntable device comprises a base, a rotary driving member arranged on the base, and a turntable connected with a power part of the rotary driving member; the rotary table is provided with a plurality of tool mounting positions corresponding to the stations one by one, and the tool mounting positions are provided with the circulation tools.

6. The product bending line of claim 5, further comprising two jacking mechanisms and two tooling control mechanisms;

the two jacking mechanisms are in one-to-one correspondence with the first bending station and the second bending station, are positioned below the turntable and are used for preventing the turntable from being deformed due to the downward pressing of the downward pressing auxiliary bending device; the two tool control mechanisms are in one-to-one correspondence with the feeding stations and the discharging stations, are positioned below the rotary table and are used for controlling the product clamping structure on the flow tool to act so as to facilitate feeding and discharging.

7. The product bending line of claim 4, wherein the product loading device is the same as the product unloading device; the device comprises a stand column, a horizontal carrying structure arranged on the stand column, a lifting structure arranged on the horizontal carrying structure, a plurality of product taking and placing structures arranged on the lifting structure, and a variable-spacing adjusting mechanism for adjusting the spacing between the plurality of 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.

8. The product bending production line according to claim 7, wherein the variable-pitch adjusting mechanism comprises a connecting plate arranged on the lifting structure, the connecting plate is provided with a horizontal reciprocating motion structure and a plurality of sliding seats which are arranged along the horizontal direction and are in one-to-one correspondence with the product taking and placing structures,

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

9. The product bending line of claim 4, wherein the product conveyor comprises a master conveyor mechanism, a slave conveyor mechanism, two tooling positioning jack-up mechanisms, and two tooling transfer mechanisms;

the main conveyor belt mechanism and the auxiliary conveyor belt mechanism are arranged side by side and have opposite conveying directions;

the two tooling 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 connection station and the discharging connection station; the two tool positioning and jacking mechanisms are used for positioning and jacking a feeding tool or a discharging tool to separate the feeding tool or the discharging tool from the main conveying belt mechanism, so that feeding or discharging of products is facilitated;

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

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

the secondary conveying belt mechanism is used for conveying the empty blanking tool, the other tool transferring mechanism is used for jacking up and transferring the empty blanking tool to the primary conveying belt mechanism, and the primary conveying belt mechanism is used for continuously conveying the blanking tool for bearing the products after pressure maintaining.

10. The product bending production line of claim 9, wherein the tooling transfer mechanism comprises a mounting frame, a transition transfer plate is arranged at the top of the mounting frame, and the transition transfer plate is positioned above the master conveyor belt mechanism and the slave conveyor belt mechanism;

two tooling jacking mechanisms which are in one-to-one correspondence with the main conveying belt mechanism and the auxiliary conveying belt mechanism are arranged on the mounting frame, and an avoidance port matched with the tooling jacking mechanisms is formed in the transition transfer plate;

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

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