CN112547866A

CN112547866A - Feeding mechanism of heat exchanger bender and bender using same

Info

Publication number: CN112547866A
Application number: CN202011407782.2A
Authority: CN
Inventors: 龙晓明; 洪伟东
Original assignee: Oms Machinery Co Ltd
Current assignee: Oms Machinery Co Ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-03-26

Abstract

The invention discloses a feeding mechanism of a heat exchanger bending machine and the bending machine applying the feeding mechanism, wherein the feeding mechanism comprises a feeding rack, a conveying unit is arranged on the feeding rack, the conveying unit comprises a conveying assembly and a carrying assembly, and the conveying assembly is used for bearing and conveying workpieces; the conveying assembly is positioned on one side of the conveying assembly and is used for receiving the workpiece to be bent on the conveying assembly and conveying the workpiece to a bending station or taking out the workpiece which is bent from the bending station and conveying the workpiece to the conveying assembly; the feeding mechanism can realize feeding conveying of workpieces to be bent and taking out conveying of the workpieces to be bent, the workpieces can be conveyed without other conveying devices after being bent, the whole mechanism of the bending machine is more compact, the occupied space of the bending machine is reduced, the feeding mode is simple and convenient, the friction force of the workpieces in the conveying process is reduced, surface scratches are reduced, the workpieces to be bent are uniformly stressed in the conveying process, and the yield is improved.

Description

Feeding mechanism of heat exchanger bender and bender using same

Technical Field

The invention belongs to the field of heat exchanger bending machines, and particularly relates to a feeding mechanism of a heat exchanger bending machine and the bending machine using the feeding mechanism.

Background

Tube and fin heat exchangers are widely used in the refrigeration industry as a compact heat exchanger. The forming process of the heat exchanger mainly comprises the following three forming processes: bending and forming the tube (forming a U-shaped tube), mechanically expanding the tube and forming the tube bundle (realizing tube-fin connection), and bending and forming the tube bundle (forming an L-shaped or G-shaped heat exchanger). The bending and forming of the tube bundle is one of the key processes for forming the heat exchanger, and has important influence on the performance of the heat exchanger.

In bending and forming the tube bundle, the heat exchanger is first conveyed to a predetermined position so that a portion to be bent abuts against a bending die (a roll) having a predetermined bending radius, and then the heat exchanger on both sides of the bending die is held, and one or both holding members are rotated around the bending die, whereby the heat exchanger is extruded along the bending die at a predetermined bending angle. More specifically, the heat exchanger is fed in a lying state in a longitudinal direction into a bending machine, and then a portion to be bent is made to abut against a bending die in a transverse direction, the bending die is placed above the portion to be bent, the front end of the heat exchanger is sandwiched between the bending die and a clamping die (lower pressing plate), while the rear end is supported by a bottom plate (following plate), an actuator is driven to rotate the bending die and the clamping die by a prescribed angle as required, and the clamping die is lifted to rotate the front end of the heat exchanger centering on the center of the bending die, thereby being formed along the bending die.

In the traditional tube bundle bending and forming process, the heat exchanger to be bent is conveyed to a bending die in a bending machine main machine by the input end of the bending machine main machine and then is bent and formed by manual operation, and the feeding mode is low in working efficiency and high in labor intensity.

In order to solve the above problems, the applicant has created a related feeding mechanism, specifically refer to patent invention with publication number CN 104690182B and patent name of a feeding assembly of a bending machine, and the feeding assembly of the bending machine disclosed in the technical solution carries a workpiece to be bent (for example, a heat exchanger to be bent) on a feeding platform and is pushed by a material pushing mechanism, so as to realize automatic conveying, reduce labor intensity and improve working efficiency; the feeding platform is driven to ascend or descend through the feeding lifting mechanism to adjust the height of the feeding platform, so that the feeding platform can be accurately butted with a host of an external bending machine, the whole process that a feeding assembly conveys a workpiece to be bent to the host of the external bending machine and the host of the external bending machine receives materials is stably and smoothly carried out, and the problem that the feeding platform cannot be accurately butted with the host of the external bending machine due to various errors such as assembly errors is solved; in addition, the feeding platform can still normally push the workpiece to be bent under different height positions by utilizing the mutually independent material pulling mechanism and the feeding conveying assembly, but the structure adopts a pushing mode to push the workpiece to be bent into a host of the bending machine, and in the pushing process of the workpiece to be bent, the workpiece to be bent and the feeding platform are rubbed, so that a certain friction force exists between the workpiece to be bent and the feeding platform, and during pushing, the surface of the workpiece to be bent can be rubbed by the surface of the feeding platform, so that scratches are easily generated on the surface of the workpiece to be bent, and the appearance of a product is influenced; in addition, because a pushing feeding mode is adopted, the guiding of the workpiece to be bent on the pushing path is particularly important, and therefore, the scheme is provided with two guide rods for guiding the workpiece to be bent on the feeding platform, but the structure has the following defects:

1) if the distance between the two guide rods is equal to the width of the workpiece to be bent, the feeding difficulty of the workpiece to be bent is increased, and the workpiece to be bent can not enter the feeding assembly due to the error generated in the manufacturing process of the workpiece to be bent, so that the feeding is inconvenient;

2) if the distance between the two guide rods is larger than the width of the workpiece to be bent, the workpiece to be bent may incline due to uneven stress of the workpiece to be bent in the pushing process of the workpiece to be bent, so that the workpiece to be bent enters a main machine of a bending machine in a skew state, and the yield of bending the workpiece to be bent is easily influenced; the workpiece to be bent can be clamped between the two guide rods seriously, and the feeding assembly is damaged.

In addition, when the feeding assembly is used, single feeding can be achieved, namely, a workpiece to be bent can be conveyed to a bending station, after the bending process is completed, the workpiece to be bent needs to be taken out through other discharging conveying structures, so that the occupied space of the bending machine can be enlarged, if the placement space of the bending machine is limited, the practicability of the bending machine using the feeding assembly is low, and the space requirement of the bending machine cannot be met.

Disclosure of Invention

The invention aims to provide a feeding mechanism of a bending machine and the bending machine applying the feeding mechanism, which integrates the feeding function of a workpiece to be bent and the taking-out function of the workpiece to be bent, can save the occupied space of the bending machine and enable the bending machine to have more compact integrity.

The invention also aims to provide a feeding mechanism of the bending machine and the bending machine applying the feeding mechanism, which can realize convenient and simple feeding of workpieces to be bent, reduce the friction force on the workpieces to be bent in the conveying process, reduce scratches on the surfaces of the workpieces to be bent due to friction and enable the workpieces to be bent to be uniformly stressed in the conveying process.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a feeding mechanism of heat exchanger bender, includes the material loading frame, is equipped with the conveying unit who is used for carrying the work piece on this material loading frame, and this conveying unit includes:

the conveying assembly is used for bearing and conveying the workpiece;

the conveying assembly is positioned on one side of the conveying assembly and is used for receiving the workpiece to be bent on the conveying assembly and conveying the workpiece to the bending station or taking out the workpiece which is bent from the bending station and conveying the workpiece to the conveying assembly;

and the bottom plate is used for supporting the conveying assembly and the conveying assembly.

Preferably, the conveying assemblies are at least two groups, and the two groups of conveying assemblies are arranged in parallel and are arranged side by side at intervals along the Y-axis direction of the feeding rack; the conveying components and the conveying components are correspondingly arranged and respectively distributed on one side of each group of conveying components.

Preferably, the carrying assembly includes:

the bearing seat is arranged in parallel with the conveying component and is used for bearing and conveying the workpiece;

the Z-axis driving component is connected with the bearing seat and used for driving the bearing seat to move along the Z-axis direction of the feeding frame, so that the bearing seat can bear the workpiece to be bent on the conveying component or place the workpiece which is bent on the conveying component;

and the X-axis driving assembly is connected with the bearing seat and used for driving the bearing seat to move along the X-axis direction of the feeding frame, so that the bearing seat can convey the workpiece to be bent to a bending station or take out the workpiece which is bent from the bending station.

Preferably, a Y-axis guide assembly and a Y-axis power source are arranged between the feeding rack and the conveying unit, the conveying unit is mounted on the feeding rack through the Y-axis guide assembly, the conveying unit can move on the Y-axis guide assembly along the Y-axis direction of the feeding rack, the Y-axis power source is mounted on the bottom plate, and a Y-axis transmission mechanism capable of achieving movement of the conveying unit along the Y-axis direction of the feeding rack is arranged between the Y-axis power source and the conveying unit.

Preferably, still including carrying the thing frame, locate on the material loading frame, the conveying unit is installed in carrying the thing frame, is equipped with material loading lifting unit between carrying thing frame and material loading frame, and material loading lifting unit orders about and carries the thing frame and rise or descend along the Z axle direction of material loading frame.

Preferably, a Y-axis guide assembly and a Y-axis power source are arranged between the carrier rack and the conveying unit, the conveying unit is mounted on the carrier rack through the Y-axis guide assembly, the conveying unit can move on the Y-axis guide assembly along the Y-axis direction of the feeder rack, the Y-axis power source is mounted on the bottom plate, and a Y-axis transmission mechanism capable of achieving movement of the conveying unit along the Y-axis direction of the feeder rack is arranged between the Y-axis power source and the conveying unit.

Preferably, this material loading lifting unit includes four material loading worm screw lifters of installing on the material loading frame and a material loading elevator motor that is used for driving four material loading worm screw lifters simultaneous action, and four material loading worm screw lifters distribute in the four corners of carrying the thing frame, are equipped with the material loading drive mechanism that can realize four worm screw lifters simultaneous action between this material loading elevator motor and four material loading worm screw lifters.

Preferably, this conveying assembly includes transport mount pad, conveyer belt, conveying roller group and conveying roller driving motor, carries the mount pad to install on the bottom plate, carries roller group to install on carrying the mount pad, and the conveyer belt suit is on carrying roller group, carries roller group to drive by conveying roller driving motor and rotates to make the conveyer belt realize the transport to the work piece on the conveying assembly.

Preferably, the Z-axis driving assembly comprises at least two groups of Z-axis guide assemblies and a Z-axis power source, and the Z-axis power source is arranged on the base plate;

the two groups of Z-axis guide components are arranged on the bottom plate and are distributed at intervals along the X-axis direction of the feeding rack, the Z-axis power source is arranged between the two groups of Z-axis guide components, one end part of each group of Z-axis guide components is provided with a connecting plate, the bearing seat is arranged on the connecting plate, the power output end of the Z-axis power source is connected with the connecting plate, and the connecting plate is driven to move up and down along the Z-axis direction of the feeding rack, so that the up-and-down movement of the bearing seat in the Z-axis direction of the;

this X axle drive assembly includes X axle guide assembly and X axle power supply, and the bearing seat passes through X axle guide assembly to be installed on the connecting plate, and the bearing seat can move along the X axle direction of material loading frame on X axle guide assembly, and X axle power supply is installed on the connecting plate, is equipped with the X axle drive mechanism that can realize the bearing seat and move along the X axle direction of material loading frame between X axle power supply and bearing seat.

The bending machine comprises a frame, a first bending mechanism, a second bending mechanism and a follow-up mechanism, wherein the first bending mechanism and the second bending mechanism are arranged on the frame and can complete bending processes on two sides of a workpiece, the follow-up mechanism is arranged on the frame and can bear the workpiece, the follow-up mechanism is arranged between the first bending mechanism and the second bending mechanism, the feeding mechanism is arranged on one side of the frame, the feeding mechanism is used for conveying the workpiece to be bent to a bending station or taking the workpiece to be bent out of the bending machine from the bending station.

The invention has the beneficial effects that:

through the scheme, when the feeding mechanism is used, the feeding conveying of the workpiece to be bent and the taking-out conveying of the bent workpiece can be realized, so that the workpiece can be conveyed without other conveying devices after the bending processing of the bending machine, the bending machine is more compact, and the occupied space of the bending machine is effectively reduced; in addition, when the workpiece to be bent is fed, the conveying assembly conveys the workpiece (such as a heat exchanger) in place, and then the conveying assembly is linked with the Z-axis through the X-axis and the Z-axis to convey the workpiece on the conveying assembly to the servo mechanism of the bending machine, so that the feeding is simple and convenient, the friction force of the workpiece in the conveying process can be effectively reduced, the scratch on the surface of the workpiece due to friction is reduced, the workpiece is ensured not to be clamped on the feeding mechanism, the automatic conveying is realized, the labor intensity is reduced, and the working efficiency is improved; moreover, the stress of the bent workpiece is ensured to be uniform in the conveying process, so that the workpiece is not easy to incline due to uneven stress of the workpiece in the workpiece conveying process, and the workpiece enters a main machine of the bending machine in a skew state, thereby easily influencing the yield of bending the workpiece.

Drawings

Fig. 1 is a schematic plan structure view of a feeding mechanism according to a first embodiment of the present invention;

FIG. 2 is a right side view of the feed mechanism provided in FIG. 1;

FIG. 3 is a schematic perspective view of the feeding mechanism shown in FIG. 1;

fig. 4 is a schematic plan view of a conveying unit according to an embodiment of the present invention;

fig. 5 is a schematic plan view of another angle of the conveying unit according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a conveying assembly and a bottom plate according to an embodiment of the present invention;

FIG. 7 is a schematic plan view of a conveying assembly and a base plate according to an embodiment of the present invention;

FIG. 8 is a schematic view of another angle of the conveying assembly and the base plate according to an embodiment of the present invention;

fig. 9 is an exploded schematic view of a feeding mechanism according to a second embodiment of the present invention;

fig. 10 is a schematic plan view of a feeding mechanism according to a second embodiment of the present invention;

fig. 11 is a schematic plan view of a bending machine according to a third embodiment of the present invention;

fig. 12 is a schematic perspective view of the bending machine provided in fig. 11.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 8, the present embodiment provides a feeding mechanism of a heat exchanger bending machine, including a feeding frame 1, a conveying unit 10 for conveying a workpiece is disposed on the feeding frame 1, the conveying unit 10 includes a conveying assembly 2, a carrying assembly 3 and a bottom plate 4, the conveying assembly 2 is used for carrying and conveying the workpiece; the conveying assembly 3 is positioned at one side of the conveying assembly 2, and the conveying assembly 3 can move along the X-axis and Z-axis directions of the feeding rack 1 and is used for receiving a workpiece to be bent on the conveying assembly 2 and conveying the workpiece to a bending station or taking out the workpiece which is bent from the bending station and conveying the workpiece to the conveying assembly 2; the base plate 4 supports the conveyor unit 2 and the conveying unit 3, and a conveying path of the conveyor unit 2 and a conveying path of the conveying unit 3 for conveying the workpiece in the X-axis direction of the loading frame 1 are provided in parallel to each other.

Through the scheme, when the feeding mechanism is used, the feeding conveying of the workpiece to be bent and the taking-out conveying of the bent workpiece can be realized, so that the workpiece can be conveyed without other conveying devices after the bending processing of the bending machine, the whole mechanism of the bending machine becomes more compact, and the occupied space of the bending machine is effectively reduced; specifically, when the feeding mechanism carries out feeding on a workpiece to be bent, the conveying assembly 2 is in butt joint with an external conveying line for conveying the workpiece, and a workpiece transition interface is formed at the butt joint position of the conveying assembly 2 and the external conveying line, so that the conveying assembly 2 can conveniently receive materials or discharge materials during feeding; a workpiece to be bent enters the conveying assembly 2 through the workpiece transition interface, after the conveying assembly 2 conveys the workpiece (such as a heat exchanger to be bent) to a proper position, the conveying assembly 3 firstly acts along the Z-axis direction of the feeding rack 1 to carry the workpiece from the conveying assembly 2, then acts along the X-axis direction of the feeding rack 1 to convey the workpiece to a bending station, and then resets; after the bending machine finishes bending the workpiece, the conveying assembly 3 firstly moves along the Z-axis direction of the feeding rack 1 and then moves along the X-axis direction of the feeding rack 1 to reach a bending station, a follower mechanism in the bending machine moves downwards to enable the workpiece which finishes bending to be supported on the conveying assembly 3, then the conveying assembly 3 firstly moves along the X-axis direction of the feeding rack 1 to take the workpiece out of the bending station and then moves along the Z-axis direction of the feeding rack 1 to enable the workpiece to be conveyed to the conveying assembly 2, and then the conveying assembly 2 sends the workpiece out through a workpiece transition interface to enable the workpiece to enter and exit in the same direction, so that the whole mechanism of the bending machine becomes more compact, and the occupied space of the bending machine is effectively reduced; in addition, when the feeding mechanism feeds the workpiece to be bent, the feeding mechanism is in a feeding mode of linkage of an X-axis and a Z-axis, so that the feeding process is simple, convenient and quick, the friction force applied to the workpiece in the conveying process can be effectively reduced, scratches on the surface of the workpiece due to friction are reduced, the workpiece is prevented from being clamped on the feeding mechanism 500, automatic conveying is realized, the labor intensity is reduced, and the working efficiency is improved; moreover, the stress of the bent workpiece is ensured to be uniform in the conveying process, so that the workpiece is not easy to incline due to uneven stress of the workpiece in the workpiece conveying process, and the workpiece enters a main machine of the bending machine in a skew state, thereby easily influencing the yield of bending the workpiece.

Furthermore, the conveying assemblies 2 are at least provided with two groups, and the two groups of conveying assemblies 2 are arranged in parallel and are arranged side by side at intervals along the Y-axis direction of the feeding rack 1; the conveying components 3 are arranged corresponding to the conveying components 2 and are respectively distributed on one side of each group of conveying components 2, so that the loading mechanism 500 can support the workpieces more stably.

Preferably, the conveying assembly 3 comprises a bearing seat 31, a Z-axis driving assembly 32 and an X-axis driving assembly 33, wherein the bearing seat 31 and the conveying assembly 2 are arranged in parallel on the bearing seat 31 and used for bearing and conveying the workpiece; the Z-axis driving assembly 32 is connected with the bearing seat 31 and is used for driving the bearing seat 31 to move along the Z-axis direction of the feeding rack 1, so that the bearing seat 31 can bear the workpiece to be bent on the conveying assembly 2 or place the workpiece which is bent on the conveying assembly 2; the X-axis driving assembly 33 is connected with the bearing seat 31 and used for driving the bearing seat 31 to move along the X-axis direction of the feeding rack 1, so that the bearing seat 31 can convey a workpiece to be bent to a bending station or take out the workpiece which is bent from the bending station, the feeding mechanism can realize feeding and conveying of the workpiece to be bent and taking out and conveying of the workpiece which is bent, the workpiece can be conveyed without other conveying devices after the bending processing of the bending machine, the whole mechanism of the bending machine is more compact, and the occupied space of the bending machine is effectively reduced; in addition, a two-axis linkage mode is adopted, so that the conveying assemblies 3 of the two conveying units 10 can convey the workpiece to a bending station of a bending machine in an insertion type conveying mode when conveying the workpiece, friction between the workpiece and the feeding frame 1 is avoided, friction force applied to the workpiece in the conveying process is reduced, scratches on the surface of the workpiece due to friction are reduced, the workpiece is prevented from being clamped on the feeding mechanism 500, automatic conveying is realized, labor intensity is reduced, and working efficiency is improved; moreover, the bending machine ensures that the stress of the bent workpiece is uniform in the conveying process, so that the workpiece is not easy to incline due to uneven stress of the workpiece in the workpiece conveying process, and the bent workpiece enters a main machine of the bending machine in a skew state.

Specifically, the Z-axis driving assembly 32 includes at least two sets of Z-axis guiding assemblies 321 and a Z-axis power source 322, and the Z-axis power source 322 is mounted on the base plate 4; two sets of Z-axis guide components 321 are arranged on the bottom plate 4 and are distributed at intervals along the X-axis direction of the feeding rack 1, a Z-axis power source 322 is arranged between the two sets of Z-axis guide components 321, one end part of each set of Z-axis guide components 321 is provided with a connecting plate 34, the bearing seat 31 is arranged on the connecting plate 34, the power output end of the Z-axis power source 322 is connected with the connecting plate 34 to drive the connecting plate 34 to move up and down along the Z-axis direction of the feeding rack 1, and therefore the up-and-down movement of the bearing seat 31 in the Z-axis direction of the feeding rack 1 is achieved; further, the Z-axis guiding assembly 321 includes a fixed seat 321A installed on the bottom plate 4, a sliding support seat 321B, Z, an axis guide rail 321C, and a Z-axis slider 321D engaged with the Z-axis guide rail, the Z-axis slider 321D is installed on the fixed seat 321A, the sliding support seat 321B is connected with the Z-axis guide rail 321C, so that the sliding support seat 321B can move back and forth on the Z-axis slider 321D, the connecting plate 34 is installed at the end of the sliding support seat 321B, a clearance hole for the sliding support seat and the Z-axis guide rail to pass through is opened at the position of the bottom plate 4 corresponding to the sliding support seat, the Z-axis power source 322 can be a cylinder, the end of a piston rod of the cylinder can be connected with the connecting plate 34 through a screw or a connecting assembly, when the piston rod moves, the connecting plate 34 is driven to move up and down along the Z-axis direction of the feeding, the structure is simple and practical, and the operation is convenient; of course, the Z-guide assembly may also employ a linear bearing with a flange and a guide rod with a flange, the linear bearing is mounted on the bottom plate 4, and the flange end of the guide rod is connected with the connecting plate 34; this Z axle power source 322 can be the motor, and the motor passes through lead screw drive connecting plate 34, and the drive mode is simple, and the theory of driving is simple, makes things convenient for the later maintenance.

The X-axis driving component 33 comprises an X-axis guiding component 331 and an X-axis power source 332, the bearing seat 31 is arranged on the connecting plate 34 through the X-axis guiding component 331, the bearing seat 31 can move on the X-axis guiding component 331 along the X-axis direction of the feeding rack 1, the X-axis power source 332 is arranged on the connecting plate 34, an X-axis transmission mechanism 333 which can realize the movement of the bearing seat 31 along the X-axis direction of the feeding rack 1 is arranged between the X-axis power source 332 and the bearing seat 31, the X-axis guiding component 331 comprises an X-axis guide rail and an X-axis sliding block matched with the X-axis guide rail, the X-axis guide rail is arranged at the bottom of the bearing seat 31, the X-axis sliding block is connected with the connecting plate 34, so that the bearing seat 31 can move back and forth on the X-axis sliding block, the X-axis transmission mechanism 333 comprises an X-axis rack 333A and an X-axis gear 333B meshed with the X-axis rack 333A, the X-axis, the X-axis gear 333B is installed on a power output shaft of the X-axis power source 332, the X-axis power source 332 drives the X-axis gear 333B, the X-axis gear drives the X-axis rack to drive the bearing seat 31 to move on the connecting plate 34 along the X-axis direction of the feeding rack 1, the X-axis power source 332 is a motor, the driving mode is simple, the driving principle is simple, and later maintenance is facilitated.

Y-axis guide assemblies 5 and Y-axis power sources 6 are arranged between a feeding rack 1 and a conveying unit 10, at least two groups of Y-axis guide assemblies 5 are arranged on two sides of the same end face of the feeding rack 1 respectively, the length direction of the Y-axis guide assemblies 5 is arranged along the Y-axis direction of the feeding rack 1, the conveying unit 10 is arranged on the feeding rack 1 through the Y-axis guide assemblies 5, the conveying unit 10 can move on the Y-axis guide assemblies 5 along the Y-axis direction of the feeding rack 1, the Y-axis power sources 6 are arranged on a bottom plate 4, a Y-axis transmission mechanism 7 capable of realizing the movement of the conveying unit 10 along the Y-axis direction of the feeding rack 1 is arranged between the Y-axis power sources 6 and the conveying unit 10, the Y-axis transmission mechanism 7 is positioned between the two groups of Y-axis guide assemblies 5, the Y-axis guide assemblies 5 comprise Y-axis guide rails and Y-axis sliding blocks matched with the Y-axis guide rails, the Y-axis guide rails are arranged on the feeding rack, the bottom plate 4 is arranged on a Y-axis sliding block, so that the conveying units 10 can move back and forth on a Y-axis guide rail, the Y-axis transmission mechanism 7 comprises a Y-axis rack and a Y-axis gear meshed with the Y-axis rack, the Y-axis rack is arranged on the feeding rack 1, a power output shaft of the Y-axis power source 6 penetrates out of the bottom plate 4 from top to bottom on the bottom plate 4, the Y-axis gear is arranged on the power output shaft of the Y-axis power source 6, the Y-axis power source 6 drives the Y-axis gear, so that the Y-axis gear drives the Y-axis rack to drive the conveying units 10 to move on the feeding rack 1 along the Y-axis direction of the feeding rack 1, the Y-axis power source 6 is a motor, the design realizes that the two conveying units 10 can be adjusted in a self-adapting mode according to the widths of different workpieces, the degree of automation is high, the adjustment is convenient, the control is simple, the feeding is convenient, making it more versatile.

The conveying assembly 2 comprises a conveying mounting seat 21, a conveying belt (not shown), a conveying roller group 23 and a conveying roller driving motor 24, wherein the conveying mounting seat 21 is mounted on the bottom plate 4, the conveying roller group 23 is mounted on the conveying mounting seat 21, the conveying belt is sleeved on the conveying roller group 23, and the conveying roller group 23 is driven to rotate by the conveying roller driving motor 24, so that the conveying belt can convey workpieces on the conveying assembly 2; when the bearing seat 31 is in the original position in the Z-axis direction of the feeding rack 1, the end surface of the bearing seat 31 is lower than the top of the conveying component 2, and the conveying component 2 is convenient to convey workpieces due to reasonable design; a limiting component 20 is arranged at the end part of the conveying installation seat 21, the limiting component 20 is used for limiting a workpiece and preventing the workpiece from flying out of the conveying component 2 in the conveying process so as to be convenient for the conveying component 3 to support the workpiece, the limiting component 20 comprises an air cylinder, a limiting installation seat, two guide sleeves with flanges, a guide rod with flanges and a limiting block, the guide rods are matched with the guide sleeves, the limiting installation seat is arranged on the bottom plate 4, the guide sleeves are arranged on the limiting installation seat, the guide rods are inserted in the guide sleeves, the flange ends of the guide rods are connected with the limiting block, the air cylinder is arranged on the limiting installation seat, the piston rod of the air cylinder is connected with the limiting block, the air cylinder is used for driving the limiting block to move in the Z-axis direction of the feeding rack 1, the limiting component 20 is designed to automatically realize vertical adjustment, when the conveying component 2 conveys the workpiece, the air cylinder of the limiting component 20 is in an, therefore, the limiting component 20 can be provided with a sensor (for example, an infrared sensor) for detecting whether the workpiece abuts against and reaches the limiting block, when the workpiece reaches the limiting block, the sensor sends a signal to enable a controller (for example, a PLC) to stop the action of the conveying component 2, control the cylinder of the limiting component 20 to reset, enable the end face of the limiting block to be lower than the end face of the conveying component 2, control the Z-axis power source 322 of the conveying component 3 to start, enable the bearing block 31 to move along the Z-axis direction of the feeding rack 1, enable the bearing block 31 to support the workpiece on the conveying component 2, realize the separation of the conveying component 2 and the workpiece, finally, the controller drives the X-axis power source 332, enable the bearing block 31 to convey the workpiece to the bending station of the bending machine along the X-axis direction of the feeding rack 1, automatically adjust the limiting component 20 up and down, enable the conveying component 3 to convey the component to be bent along the Z-axis direction of the feeding rack 1, the displacement of the conveying component 3 in the Z-axis direction of the feeding rack 1 can be shortened as much as possible (namely, the conveying component 3 only needs to realize the separation of the conveying component 2 and the workpiece in the Z-axis direction of the feeding rack 1, and the height difference between the end face of the limiting block and the conveying component 2 when the cylinder is out of position is not considered), so that the workpiece is conveyed more stably.

The feeding rack 1 is further provided with a guide mechanism 30, the guide mechanism 30 is located on one side of the feeding rack 1 and is arranged parallel to the conveying unit 10 along the X-axis direction of the feeding rack 1, the guide mechanism 30 is used for guiding a workpiece conveyed in place and preventing the workpiece from being skewed during feeding or conveying, so that the skewed workpiece can be directly conveyed to a bending machine when the conveying assembly 3 conveys the workpiece, the guide mechanism 30 comprises a fixed support 30A, a fixed plate 30B installed on the fixed support 30A, a cylinder 30C installed on the fixed plate 30B, guide sleeves 30D with flanges respectively installed at two ends of the fixed plate 30B, a guide rod 30E with flanges and a guide plate 30F which are matched with the guide sleeves 30D, the cylinder 30C is located between the two guide sleeves 30D, the guide rod 30E is inserted on the guide sleeves 30D, and the flange end of the guide rod is connected with the guide plate 30F, the piston rod of cylinder 30C is connected with deflector 30F, and deflector 30F and conveying unit 10 parallel arrangement, cylinder 30C drive deflector 30F along the Y axle direction round trip movement of material loading frame 1, under the skew circumstances can not take place when guaranteeing that the work piece is carried, do not influence the conveying efficiency of conveyor assembly 2, can not increase the transport degree of difficulty yet, the structure sets up rationally, practical convenient.

Example two:

the solution provided by the first embodiment is suitable for a situation that a distance between a workpiece transition interface and a bending station is not very different, and in order to improve the versatility of the carrying assembly 3, the present embodiment is further improved, specifically as shown in fig. 9 and fig. 10, in the present embodiment, the feeding mechanism includes a feeding frame 1, a carrier frame 8 disposed on the feeding frame 1, and a conveying unit 10 mounted on the carrier frame 8, a feeding lifting assembly 9 is disposed between the carrier frame 8 and the feeding frame 1, the feeding lifting assembly 9 drives the carrier frame 8 to ascend or descend along a Z-axis direction of the feeding frame 1, so as to drive the conveying unit 10 to ascend or descend, and facilitate carrying of a workpiece by the conveying unit 10, where the conveying unit 10 in the present embodiment is identical to the structure described in the first embodiment, and no description is repeated here, the carrier frame 8 drives to ascend or descend through the feeding lifting assembly 9 to adjust a height of the carrier frame 8, even if the distance difference between the workpiece transition interface and the bending station is large, the feeding mechanism can be ensured to finish the workpiece conveying, and the universality of the feeding mechanism is improved.

Furthermore, a Y-axis guide assembly 5 and a Y-axis power source 6 are arranged between the carrying rack 8 and the conveying unit 10, at least two groups of Y-axis guide assemblies 5 are respectively installed on two sides of the same end face of the carrying rack 8, the length direction of the Y-axis guide assembly 5 is arranged along the Y-axis direction of the feeding rack 1, the conveying unit 10 is installed on the carrying rack 8 through the Y-axis guide assembly 5, the conveying unit 10 can move along the Y-axis direction of the feeding rack 1 on the Y-axis guide assembly 5, the Y-axis power source 6 is installed on the bottom plate 4, and a Y-axis transmission mechanism 7 capable of enabling the conveying unit 10 to move along the Y-axis direction of the feeding rack 1 is arranged between the Y-axis power source 6 and the conveying unit 10; the Y-axis transmission mechanism 7 is positioned between two groups of Y-axis guide assemblies 5, the Y-axis guide assemblies 5 comprise Y-axis guide rails and Y-axis sliding blocks matched with the Y-axis guide rails, the Y-axis guide rails are installed on the object carrying rack 8, the bottom plate 4 is installed on the Y-axis sliding blocks, the conveying units 10 can move back and forth on the Y-axis guide rails, the Y-axis transmission mechanism 7 comprises Y-axis racks and Y-axis gears meshed with the Y-axis racks, the Y-axis racks are installed on the object carrying rack 8, power output shafts of the Y-axis power sources 6 penetrate through the bottom of the bottom plate 4 from top to bottom on the bottom plate 4, the Y-axis gears are installed on power output shafts of the Y-axis power sources 6, the Y-axis power sources 6 drive the Y-axis gears, the Y-axis gears drive the Y-axis racks so as to drive the conveying units 10 to move on the material carrying rack 1 along the Y-axis direction of the material carrying rack 1, the Y-axis power sources 6 are motors, and the design realizes that the self-adaptive, the automatic feeding mechanism has the advantages of high automation degree, convenience in adjustment, simplicity in control and convenience in feeding, and can be used for enabling the feeding mechanism 500 to be capable of carrying workpieces of different sizes, so that the universality is higher.

Further, this material loading lifting unit 9 includes four material loading worm gear lead screw lifters 91 and a material loading elevator motor 92 that is used for driving four material loading worm gear lead screw lifters 91 simultaneous movement that install on material loading frame 1, and four material loading worm gear lead screw lifters 91 distribute in the four corners of carrying thing frame 8, are equipped with the material loading drive mechanism 93 that can realize four worm gear lead screw lifters simultaneous movement between this material loading elevator motor 92 and four material loading worm gear lead screw lifters 91.

Specifically, the four feeding worm screw lifters 91 are supported against the bottom of the carrier rack 8, the feeding transmission mechanism 93 includes three feeding elevating steering boxes and six feeding elevating transmission shafts, the three feeding elevating steering boxes are arranged at intervals along the direction parallel to the Y-axis of the feeding rack 1, two adjacent feeding elevating steering boxes are respectively connected by one feeding elevating transmission shaft, the feeding elevating steering box in the middle is connected with the transmission wheel on the output shaft of the feeding elevating motor 92 through the transmission wheel and the transmission belt or connected with the output shaft of the feeding elevating motor 92 through one feeding elevating transmission shaft, the feeding elevating steering boxes at two ends are respectively matched with the two feeding worm screw lifters 91, and the feeding elevating steering boxes at two ends are respectively connected with the feeding worm screw lifters 91 corresponding to the feeding worm screw lifters with power input respectively by one feeding elevating transmission shaft, the driving of a plurality of feeding worm screw lifters 91 can be realized by one motor, and the structure is compact.

The object carrying rack 8 is further provided with a guide mechanism 30, the guide mechanism 30 is positioned on one side of the object carrying rack 8 and is arranged parallel to the conveying unit 10 along the X-axis direction of the feeding rack 1, the guide mechanism 30 is used for guiding the workpiece conveyed in place and preventing the workpiece from skewing during feeding or conveying, so that the skewed workpiece can be directly conveyed to a bending machine when the conveying assembly 3 conveys the workpiece, the guide mechanism 30 comprises a fixed support 30A, a fixed plate 30B arranged on the fixed support 30A, a cylinder 30C arranged on the fixed plate 30B, guide sleeves 30D with flanges respectively arranged at two ends of the fixed plate 30B, a guide rod 30E with flanges and a guide plate 30F which are matched with the guide sleeves 30D, the cylinder 30C is positioned between the two guide sleeves 30D, the guide rod 30E is inserted on the guide sleeve 30D, and the flange end of the guide rod is connected with the guide plate 30F, the piston rod of cylinder 30C is connected with deflector 30F, and deflector 30F and conveying unit 10 parallel arrangement, cylinder 30C drive deflector 30F along the Y axle direction round trip movement of material loading frame 1, under the skew circumstances can not take place when guaranteeing that the work piece is carried, do not influence the conveying efficiency of conveyor assembly 2, can not increase the transport degree of difficulty yet, the structure sets up rationally, practical convenient.

Example three:

as shown in fig. 11 and 12, the present embodiment provides a bending machine, including a frame 100, a first bending mechanism 200, a second bending mechanism 300, and a following mechanism 400, which is disposed on the frame 100 and can perform bending processes on two sides of a workpiece, where the following mechanism 400 is located between the first bending mechanism 200 and the second bending mechanism 300, and further including a feeding mechanism 500 as described in the first or second embodiment, where the feeding mechanism 500 is located on one side of the frame 100, and the feeding mechanism 500 is configured to convey a workpiece to be bent to a bending station or take out a workpiece that is bent from the bending station, where the bending station refers to a position where the following mechanism 400 of the bending machine supports the workpiece, and in the present embodiment, the following mechanism 400 is capable of moving up and down; the feeding mechanism can realize feeding and conveying of workpieces to be bent and taking out and conveying of the bent workpieces, so that the workpieces can be conveyed without other conveying devices after the bending processing of the bending machine, the whole mechanism of the bending machine is more compact, and the occupied space of the bending machine is effectively reduced; specifically, when the feeding mechanism carries out feeding on a workpiece to be bent, the conveying assembly 2 is in butt joint with an external conveying line for conveying the workpiece, and a workpiece transition interface is formed at the butt joint position of the conveying assembly 2 and the external conveying line, so that the conveying assembly 2 can conveniently receive materials or discharge materials during feeding; a workpiece to be bent enters the conveying assembly 2 through the workpiece transition interface, after the conveying assembly 2 conveys the workpiece (such as a heat exchanger to be bent) to a proper position, the conveying assembly 3 firstly acts along the Z-axis direction of the feeding rack 1 to carry the workpiece from the conveying assembly 2, then acts along the X-axis direction of the feeding rack 1 to convey the workpiece to a bending station, and then resets; after the bending machine finishes bending the workpiece, the conveying assembly 3 firstly moves along the Z-axis direction of the feeding rack 1 and then moves along the X-axis direction of the feeding rack 1 to reach a bending station, a follower mechanism in the bending machine moves downwards to enable the workpiece which finishes bending to be supported on the conveying assembly 3, then the conveying assembly 3 firstly moves along the X-axis direction of the feeding rack 1 to take the workpiece out of the bending station and then moves along the Z-axis direction of the feeding rack 1 to enable the workpiece to be conveyed to the conveying assembly 2, and then the conveying assembly 2 sends the workpiece out through a workpiece transition interface to enable the workpiece to enter and exit in the same direction, so that the whole mechanism of the bending machine becomes more compact, and the occupied space of the bending machine is effectively reduced.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes should fall within the scope of the claims of the present invention.

Claims

1. The utility model provides a feeding mechanism of heat exchanger bender, includes material loading frame (1), its characterized in that is equipped with conveying unit (10) that are used for carrying the work piece on this material loading frame (1), and this conveying unit (10) includes:

the conveying assembly (2) is used for bearing and conveying workpieces;

the conveying assembly (3) is positioned on one side of the conveying assembly (2) and is used for receiving the workpiece to be bent on the conveying assembly (2), conveying the workpiece to a bending station or taking out the workpiece which is bent from the bending station and conveying the workpiece to the conveying assembly (2);

and a base plate (4) for supporting the conveying component (2) and the conveying component (3).

2. The feeding mechanism of the heat exchanger bending machine according to claim 1, wherein the conveying assemblies (2) are provided in at least two groups, and the two groups of conveying assemblies (2) are arranged in parallel and are arranged side by side at intervals along the Y-axis direction of the feeding rack (1); the conveying assemblies (3) and the conveying assemblies (2) are arranged correspondingly and distributed on one side of each group of conveying assemblies (2) respectively.

3. Feeding mechanism for heat exchanger bending machines according to claim 1 or 2, characterized in that said handling assembly (3) comprises:

the bearing seat (31) is arranged in parallel with the conveying component (2) and used for bearing and conveying the workpiece;

the Z-axis driving assembly (32) is connected with the bearing seat (31) and is used for driving the bearing seat (31) to move along the Z-axis direction of the feeding rack (1), so that the bearing seat (31) can bear a workpiece to be bent on the conveying assembly (2) or place the workpiece which is bent on the conveying assembly (2);

and the X-axis driving assembly (33) is connected with the bearing seat (31) and is used for driving the bearing seat (31) to move along the X-axis direction of the feeding rack (1), so that the bearing seat (31) can convey the workpiece to be bent to a bending station or take out the workpiece which is bent from the bending station.

4. The feeding mechanism of the heat exchanger bending machine according to claim 3, wherein a Y-axis guide assembly (5) and a Y-axis power source (6) are arranged between the feeding rack (1) and the conveying unit (10), the conveying unit (10) is mounted on the feeding rack (1) through the Y-axis guide assembly (5), the conveying unit (10) can move on the Y-axis guide assembly (5) along the Y-axis direction of the feeding rack (1), the Y-axis power source (6) is mounted on the bottom plate (4), and a Y-axis transmission mechanism (7) capable of achieving movement of the conveying unit (10) along the Y-axis direction of the feeding rack (1) is arranged between the Y-axis power source (6) and the conveying unit (10).

5. The feeding mechanism of the heat exchanger bending machine according to claim 3, further comprising a loading rack (8) arranged on the loading rack (1), wherein the conveying unit (10) is mounted on the loading rack (8), a loading lifting assembly (9) is arranged between the loading rack (8) and the loading rack (1), and the loading lifting assembly (9) drives the loading rack (8) to ascend or descend along the Z-axis direction of the loading rack (1).

6. The feeding mechanism of the heat exchanger bending machine according to claim 5, wherein a Y-axis guide assembly (5) and a Y-axis power source (6) are arranged between the loading rack (8) and the conveying unit (10), the conveying unit (10) is mounted on the loading rack (8) through the Y-axis guide assembly (5), the conveying unit (10) can move on the Y-axis guide assembly (5) along the Y-axis direction of the loading rack (1), the Y-axis power source (6) is mounted on the bottom plate (4), and a Y-axis transmission mechanism (7) capable of achieving movement of the conveying unit (10) along the Y-axis direction of the loading rack (1) is arranged between the Y-axis power source (6) and the conveying unit (10).

7. The feeding mechanism of the heat exchanger bending machine according to claim 6, wherein the feeding lifting assembly (9) comprises four feeding worm gear lead screw lifters (91) mounted on the feeding frame (1) and a feeding lifting motor (92) for driving the four feeding worm gear lead screw lifters (91) to synchronously move, the four feeding worm gear lead screw lifters (91) are distributed at four corners of the loading frame (8), and a feeding transmission mechanism (93) capable of realizing the synchronous movement of the four worm gear lead screw lifters is arranged between the feeding lifting motor (92) and the four feeding worm gear lead screw lifters (91).

8. The feeding mechanism of the heat exchanger bending machine according to claim 2, wherein the conveying assembly (2) comprises a conveying mounting seat (21), a conveying belt, a conveying roller set (23) and a conveying roller driving motor (24), the conveying mounting seat (21) is mounted on the base plate (4), the conveying roller set (23) is mounted on the conveying mounting seat (21), the conveying belt is sleeved on the conveying roller set (23), and the conveying roller set (23) is driven to rotate by the conveying roller driving motor (24), so that the conveying belt can convey workpieces on the conveying assembly (2).

9. The feeding mechanism of a heat exchanger bending machine according to claim 3, wherein the Z-axis driving assembly (32) comprises at least two sets of Z-axis guiding assemblies (321) and a Z-axis power source (322), the Z-axis power source (322) is mounted on the base plate (4);

two sets of Z-axis guide assemblies (321) are arranged on the bottom plate (4) and are distributed at intervals along the X-axis direction of the feeding rack (1), a Z-axis power source (322) is arranged between the two sets of Z-axis guide assemblies (321), one end part of each set of Z-axis guide assemblies (321) is provided with a connecting plate (34), the bearing seat (31) is arranged on the connecting plate (34), the power output end of the Z-axis power source (322) is connected with the connecting plate (34), and the connecting plate (34) is driven to move up and down along the Z-axis direction of the feeding rack (1), so that the bearing seat (31) moves up and down along the Z-axis direction of the feeding rack (1);

the X-axis driving component (33) comprises an X-axis guide component (331) and an X-axis power source (332), a bearing seat (31) is installed on a connecting plate (34) through the X-axis guide component (331), the bearing seat (31) can move on the X-axis guide component (331) along the X-axis direction of the feeding rack (1), the X-axis power source (332) is installed on the connecting plate (34), and an X-axis transmission mechanism (333) capable of achieving the movement of the bearing seat (31) along the X-axis direction of the feeding rack (1) is arranged between the X-axis power source (332) and the bearing seat (31).

10. A bending machine comprises a machine frame (100), a first bending mechanism (200) and a second bending mechanism (300) which are arranged on the machine frame (100) and can complete bending processes of two sides of a workpiece, and a following mechanism (400) which is arranged on the machine frame (100) and can bear the workpiece, wherein the following mechanism (400) is positioned between the first bending mechanism (200) and the second bending mechanism (300), the bending machine is characterized by further comprising a feeding mechanism (500) according to any one of claims 1 to 9, the feeding mechanism (500) is positioned on one side of the machine frame (100), and the feeding mechanism (500) is used for conveying the workpiece to be bent to a bending station or taking the workpiece which is bent out of the bending machine from the bending station.