CN211757826U - Connecting rod type plate bending machine - Google Patents
Connecting rod type plate bending machine Download PDFInfo
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- CN211757826U CN211757826U CN202020150533.9U CN202020150533U CN211757826U CN 211757826 U CN211757826 U CN 211757826U CN 202020150533 U CN202020150533 U CN 202020150533U CN 211757826 U CN211757826 U CN 211757826U
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Abstract
Connecting rod formula sheet material bender. Relate to the bender field, especially relate to the institutional advancement of connecting rod formula sheet material bender. The connecting rod type plate bending machine is compact and reasonable in structure, simple and convenient to machine, convenient to maintain and replace, capable of reducing manufacturing cost, improving efficiency and reducing energy consumption. Comprises a machine body, a sliding block connected on the machine body in a sliding way and a lifting driving mechanism used for driving the sliding block to do reciprocating lifting motion; the lifting driving mechanism comprises a power assembly, a pull rod and a linkage assembly; the power assembly is arranged on the machine body; one end of the pull rod is linked with the linkage assembly, and the other end of the pull rod is hinged with the power assembly, so that the pull rod can reciprocate under the driving of the power assembly. The utility model has the characteristics of compact structure is reasonable, processing is simple and convenient, maintain change convenience, reduce manufacturing cost, improve efficiency and reduce energy consumption etc.
Description
Technical Field
The utility model relates to a bender field especially relates to the institutional advancement of connecting rod formula sheet material bender.
Background
At present, a numerical control bending machine is usually driven by a hydraulic control system, and various problems exist in the using process, such as high energy consumption, pollution, high failure rate and the like, wherein parts of a high-precision valve group need to be periodically disassembled, cleaned and replaced.
The models of connecting rod type plate bending machines on the market are basically small-tonnage numerical control bending machines below 40 tons, while 100 tons of bending machines on the market account for 50 percent of market share, about 4000 plus 5000 machines, and the output value is 8-10 billion; the small-tonnage connecting rod type plate bending machine is directly driven by a ball screw without any force increasing mechanism, the specification requirements of corresponding parts such as the screw rod, the motor and the like are very large, equipment is not only relatively overstaffed, but also the processing and manufacturing cost is too high, and the market promotion value is not high.
In view of the above problems, the applicant filed a utility model entitled "a large-tonnage all-electric servo bending machine based on a link mechanism" on 2019, 7 and 22, with a patent number of "2019106628981". The connecting rod mechanism has the characteristics of non-linear kinematics, high speed and light load during idle stroke, low speed and heavy load during bending, meets the requirements of bending working conditions, and has larger and more stable bending force and higher bending efficiency; the actuating lever is located one side of slider, and power component separates under the influence of connecting rod with the linkage subassembly, consequently makes motor, power component, actuating lever keep away from the stress sensitive region of fuselage to the stress of fuselage, and the great stress concentration region appears in the effectual fuselage of avoiding for the fuselage can keep better structural stability and longer actual life.
After the new equipment is successfully researched and developed, the applicant conducts multiple tests on the equipment, further optimizes and improves the production and processing of the equipment, the service life of parts, the service performance and the like, and solves the following defects existing in the newly researched and developed equipment:
1. the lead screw is hinged with the rack, the whole lead screw swings in the movement process, and the lead screw has the risk of shaking when rotating at high speed, so that the service life of parts and the transmission precision are influenced;
2. the number of parts is reduced, the processing and manufacturing cost is further reduced, and the part replacement efficiency is improved;
3. on the premise of the same motor and lead screw specification, the efficiency is higher with the same tonnage; the equivalent speed, the tonnage is bigger, and the motion characteristic and the mechanical characteristic of the mechanism are better.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to above problem, provide a compact structure is reasonable, processing is simple and convenient, maintain change convenience, reduce manufacturing cost, improve efficiency and reduce the connecting rod formula sheet material bender of energy consumption.
The technical scheme of the utility model is that: comprises a machine body, a sliding block connected on the machine body in a sliding way and a lifting driving mechanism used for driving the sliding block to do reciprocating lifting motion;
the lifting driving mechanism comprises a power assembly, a pull rod and a linkage assembly;
the power assembly is arranged on the machine body;
one end of the pull rod is linked with the linkage assembly, and the other end of the pull rod is hinged with the power assembly, so that the pull rod can reciprocate under the driving of the power assembly.
The power assembly comprises a motor A, a lead screw, a guide rail and a driving block;
the screw rod is movably arranged on the rear side inclined plane of the machine body through a bearing seat;
the lead screw is driven to rotate by a motor A;
the guide rail is fixedly arranged on the rear side inclined plane of the machine body;
the driving block is provided with an internal thread matched with the lead screw, and the driving block can slide on the guide rail in a reciprocating manner through the rotation of the lead screw.
The power assembly comprises a linear driving mechanism, a guide rail and a driving block;
the linear driving mechanism comprises an electric push rod, an air cylinder or an oil cylinder;
the electric push rod, the cylinder or the cylinder body of the oil cylinder are fixedly arranged on the machine body, the end part of the piston rod of the electric push rod, the cylinder or the oil cylinder is fixedly connected with the end face of the driving block, and the driving block slides on the guide rail in a reciprocating mode through the extension and retraction of the piston rod.
The power assembly comprises a motor B and a crank;
the motor B is fixedly arranged on the machine body; one end of the crank is fixedly connected with the motor B in a transmission way, and the other end of the crank is hinged with the pull rod.
The linkage assembly comprises an upper connecting rod and a lower connecting rod;
the top end of the upper connecting rod is hinged to the machine body and is close to the top of the sliding block;
the bottom end of the lower connecting rod is hinged to the sliding block and is close to the bottom of the sliding block;
the bottom end of the upper connecting rod and the top end of the lower connecting rod are respectively hinged with the pull rod.
The bottom end of the upper connecting rod is hinged with the top end of the lower connecting rod through a rotating shaft;
the pull rod is plate-shaped or rod-shaped and is of a two-force rod structure;
one end of the pull rod is hinged to the driving block, and the other end of the pull rod is hinged to the rotating shaft.
The pull rod is of a flat-plate-shaped triangular structure;
one end of the pull rod is hinged to the bottom end of the upper connecting rod through a first hinged shaft, and the other end of the pull rod is hinged to the top end of the lower connecting rod through a second hinged shaft;
the end part of the pull rod far away from the linkage component is hinged to the power component through a hinge shaft.
The utility model comprises a body, a slide block connected on the body in a sliding way and a pair of lifting driving mechanisms arranged at the two sides of the body and used for driving the slide block to reciprocate up and down; the lifting driving mechanism comprises a power assembly, a pull rod and a linkage assembly, and the lifting driving mechanism is mainly used for optimizing and upgrading the power assembly and the pull rod. The power assembly comprises a motor and a lead screw; in the scheme, the lead screw is stably arranged on the rear side inclined plane of the machine body through the bearing seat, the problem of shaking risk during the hinged arrangement of the lead screw is solved, the service life and the stability of parts are further prolonged, and compared with the patent of 'a large-tonnage full electric servo bending machine based on a link mechanism' applied in advance, the efficiency is higher under the same specification of motors and lead screws and under the same tonnage; under the same specification of motor and lead screw, the tonnage is larger at the same speed. The utility model has the characteristics of compact structure is reasonable, processing is simple and convenient, maintain change convenience, reduce manufacturing cost, improve efficiency and reduce energy consumption etc.
The lead screw in the present case adopts fixed articulated on the fuselage, does not have holistic swing, has solved the problem that has the shake risk when the lead screw articulates and sets up, has further promoted the life and the stability of spare part. The power assembly is arranged at the rear side of the side plate of the machine body, the continuity of the whole structure of the side plate of the machine body is not influenced, and the rigidity and the strength of the machine body are not influenced.
Drawings
Figure 1 is a schematic perspective view of the present invention,
figure 2 is a schematic perspective view of the present invention,
FIG. 3 is a schematic view of the state structure of the present invention when the sliding block is at the highest point,
FIG. 4 is a schematic view of the state structure of the present invention in which the sliding block is at the lowest point,
FIG. 5 is a schematic view of the structure of the slide block moving downward in the present invention,
figure 6 is a schematic perspective view of the lifting driving mechanism of the present invention,
figure 7 is a schematic perspective view showing the connection state of the pull rod of the present invention,
figure 8 is a schematic diagram of the operation of the present invention,
figure 9 is a simplified force analysis diagram of the present invention,
figure 10 is a force closure vector diagram of the utility model,
figure 11 is a schematic structural view of another embodiment of the tie rod,
figure 12 is a schematic diagram of the operation of figure 11,
figure 13 is a schematic structural view of another embodiment of the power assembly of figure 11,
figure 14 is a schematic diagram of the action of figure 13,
figure 15 is a schematic view of a connection state structure of another structure of the drawbar of figure 13,
FIG. 16 is a schematic diagram of the action of FIG. 15;
in the figure, 1 is a body, 2 is a slider, 3 is an elevating drive mechanism, 31 is a power unit, 32 is a pull rod, 33 is a linkage unit, 331 is an upper link, 332 is a lower link, 4 is a drive block, 5 is a guide rail, 6 is a lead screw, and 7 is a crank.
Detailed Description
The utility model is shown in figures 1-10; comprises a machine body 1, a slide block 2 connected on the machine body 1 in a sliding way and a lifting driving mechanism 3 used for driving the slide block 2 to do reciprocating lifting motion;
the lifting driving mechanism 3 comprises a power assembly 31, a pull rod 32 and a linkage assembly 33;
the power assembly 31 is arranged on the top inclined plane of the rear side of the machine body 1 (as shown in fig. 3, the left side in the figure is the rear side of the machine body 1);
one end of the pull rod 32 is linked with the linkage assembly 33, and the other end is hinged with the power assembly 31, so that the pull rod 32 reciprocates under the driving of the power assembly 31.
The power assembly 31 comprises a motor A (in the scheme, the motor A or the motor B respectively adopts a servo motor), a screw rod 6, a guide rail 5 and a driving block 4;
the screw rod 6 is movably (only rotatably) arranged on the rear side inclined plane of the machine body 1 through a bearing seat; preferably, the axis of the screw 6 is parallel to the rear inclined plane of the machine body 1, and an included angle between the rear inclined plane of the machine body 1 and the X axis is b, as shown in fig. 5, in which the angle b is preferably 20 ° to 70 °, and preferably 50 °.
The screw rod 6 is driven to rotate by a motor A (or by a conventional driving mode such as a synchronous belt and a gear);
the guide rail 5 is fixedly arranged on the rear inclined plane of the machine body 1;
the driving block 4 is provided with an internal thread matched with the screw rod 6, and the driving block 4 can slide on the guide rail 5 in a reciprocating manner through the rotation of the screw rod 6.
The linkage assembly 33 includes an upper link 331 and a lower link 332;
the top end of the upper connecting rod 331 is hinged on the machine body 1 and is close to the top position of the sliding block 2;
the bottom end of the lower connecting rod 332 is hinged on the sliding block 2 and is close to the bottom of the sliding block 2;
the bottom end of the upper connecting rod 331 and the top end of the lower connecting rod 332 are respectively hinged with the pull rod 32.
The bottom end of the upper connecting rod is hinged with the top end of the lower connecting rod 332 through a rotating shaft;
the pull rod 32 is plate-shaped or rod-shaped and has a two-force rod structure;
one end of the pull rod 32 is hinged on the driving block 4, and the other end is hinged on the rotating shaft.
The action transmission of the pull rod 32 to the linkage assembly 33 can be realized only by hinging one end of the pull rod 32 with one of the upper connecting rod 331 and the lower connecting rod 332, wherein the most suitable is as follows: the bottom end of the upper connecting rod 331 is hinged to the top end of the lower connecting rod 332 through a rotating shaft 360, and one end of the pull rod 32, which is far away from the power assembly 31, is hinged to the rotating shaft 360. Therefore, the structure of the pull rod 32 and the linkage assembly 33 is more simplified, and the arrangement is more convenient, so that the assembly is convenient; in the scheme, preferably, three parts (an upper connecting rod, a lower connecting rod and a pull rod) are hinged at one point and are two-force rods.
In the scheme, the machine body 1 comprises a lower template and a pair of side plates, the side plates are arranged in parallel, the lower template is fixedly connected to the lower parts of one sides of the two side plates, and the sliding block 2 is connected to the upper parts of one sides of the two side plates in a sliding mode and is positioned right above the lower template;
the lifting driving mechanisms 3 are provided with two lifting driving mechanisms in one-to-one correspondence with the side plates, the positions, close to the top, of the rear sides of the side plates are provided with rear side inclined planes matched with the lifting driving mechanisms 3, the two lifting driving mechanisms 3 are connected to the rear side inclined planes on the two side plates respectively, and the two lifting driving mechanisms 3 are symmetrically arranged on the machine body 1. The adjustment of the parallelism between the upper die and the lower die can be realized by driving and controlling the left side and the right side of the machine body in an asynchronous manner as shown in figure 1.
Lead screw 6 sets up on the rear side inclined plane of fuselage 1 through the bearing frame is firm in the present case, has solved the problem that has the shake risk when lead screw 6 articulates and sets up, has further promoted the life and the stability of spare part. The driving block 4 realizes reciprocating sliding on the inclined surface worktable at the rear side of the machine body 1 through the rotation of the screw rod 6, and the linkage component 33 drives the sliding block 2 to reciprocate up and down through the pull rod 32 hinged with the driving block 4. Compared with the patent of 'a large-tonnage full electric servo bender based on link mechanism' applied earlier, the structure is optimized more compactly, and it is very convenient to dismantle and maintain, and required manufacturing cost further reduces, has promoted market spreading value.
As shown in fig. 9-10, Fs represents the tension of the screw 6, FL represents the tension of the tie-rod 32, FN represents the compression force (force perpendicular to the surface) of the kinematic pair, and a is the angle between FN and FL; from the formula Fs = FL sin (a), it can be seen that the tilt angle has a certain force-increasing effect, and the smaller a, the more pronounced the force-increasing effect, and vice versa.
Compared with the patent of 'a large-tonnage full-electric servo bending machine based on a link mechanism' applied in advance, the bending machine has higher efficiency under the same motor and lead screw 6 specification and the same tonnage; under the same specification of the motor and the lead screw 6, the tonnage is larger at the same speed. The kinematic and dynamic characteristics of the mechanism are more excellent.
The preferable servo motor of present case has advantages such as the machining precision is high, the processing is effectual on the whole as power component 31, has adopted pull rod 32 and linkage assembly 33 simultaneously, has nonlinear motion characteristic to have fast, the characteristics of underloading when the idle stroke, have the characteristics of slow speed, heavily loaded at the in-process of bending, accord with the operating mode requirement of bending, make the bender have bigger, more stable bending force and higher efficiency of bending.
The power assembly 31 is further expanded, and the power assembly 31 in the present case can be realized by adopting the following modes except that the screw rod 6 is adopted to realize the sliding of the driving block 4 on the guide rail 5:
the power assembly 31 comprises a linear driving mechanism, a guide rail 5 and a driving block 4;
the linear driving mechanism comprises an electric push rod, an air cylinder or an oil cylinder;
the electric push rod, the cylinder or the cylinder body of the oil cylinder are fixedly arranged on the machine body 1, the end part of the piston rod of the electric push rod, the cylinder or the oil cylinder is fixedly connected with the end face of the driving block 4, and the driving block 4 slides on the guide rail 5 in a reciprocating mode through the expansion and contraction of the piston rod.
The expansion of the tie rod 32 or the expansion of the power assembly 31 is representatively illustrated by the following embodiments:
example one
This embodiment, as shown in fig. 11-12, is a structural extension of the tie rod 32;
the pull rod 32 is of a flat-plate-shaped triangular structure;
one end of the pull rod 32 is hinged to the bottom end of the upper link 331 through a first hinge shaft, and the other end is hinged to the top end of the lower link 332 through a second hinge shaft;
the end of the pull rod 32 far away from the linkage assembly 33 is hinged to the power assembly 31 through a hinge shaft.
Example two
The present embodiment, as shown in fig. 13-14, is expanded with respect to the power assembly 31 of the first embodiment, wherein the power assembly 31 includes a motor B and a crank 7;
the motor B is fixedly arranged on the machine body 1; one end of the crank 7 is fixedly connected with the motor B in a transmission way, and the other end of the crank is hinged with the pull rod 32.
The crank 7 is movably arranged on the side surface of the machine body 1 through a motor B, the reciprocating motion of the pull rod 32 is driven through the rotation of the crank 7, and the slide block 2 reciprocates up and down through the linkage assembly 33.
EXAMPLE III
In this embodiment, as shown in fig. 15 to 16, the tension rod 32 is extended in an expandable manner based on the structure of the second embodiment. The motor B is fixedly arranged on the machine body 1; one end of the crank 7 is in transmission connection with the motor B, the other end of the crank is hinged with one end of a pull rod 32, and the other end of the pull rod 32 is hinged with the rotating shaft; the bottom of the upper link 331 is hinged with the bottom of the lower link 332 through a rotating shaft.
The disclosure of the present application also includes the following points:
(1) the drawings of the embodiments disclosed herein only relate to the structures related to the embodiments disclosed herein, and other structures can refer to general designs;
(2) in case of conflict, the embodiments and features of the embodiments disclosed in this application can be combined with each other to arrive at new embodiments;
the above embodiments are only examples disclosed in the present disclosure, but the scope of the present disclosure is not limited thereto, and those skilled in the art should be able to make equivalent substitutions for some technical feature(s) under the conception of the present disclosure, and the present disclosure should fall within the scope of the claims.
Claims (7)
1. The connecting rod type plate bending machine comprises a machine body, a sliding block and a lifting driving mechanism, wherein the sliding block is connected to the machine body in a sliding mode, and the lifting driving mechanism is used for driving the sliding block to reciprocate; it is characterized in that the preparation method is characterized in that,
the lifting driving mechanism comprises a power assembly, a pull rod and a linkage assembly;
the power assembly is arranged on the machine body;
one end of the pull rod is linked with the linkage assembly, and the other end of the pull rod is hinged with the power assembly, so that the pull rod can reciprocate under the driving of the power assembly.
2. The connecting rod type plate bending machine according to claim 1, wherein the power assembly comprises a motor A, a lead screw, a guide rail and a driving block;
the screw rod is movably arranged on the rear side inclined plane of the machine body through a bearing seat;
the lead screw is driven to rotate by a motor A;
the guide rail is fixedly arranged on the rear side inclined plane of the machine body;
the driving block is provided with an internal thread matched with the lead screw, and the driving block can slide on the guide rail in a reciprocating manner through the rotation of the lead screw.
3. The link plate bending machine according to claim 1, wherein the power assembly comprises a linear drive mechanism, a guide rail and a drive block; the linear driving mechanism comprises an electric push rod, an air cylinder or an oil cylinder;
the electric push rod, the cylinder body of the air cylinder or the oil cylinder are fixedly arranged on the machine body;
the end part of a piston rod of the electric push rod, the air cylinder or the oil cylinder is fixedly connected with the end surface of the driving block, and the driving block slides on the guide rail in a reciprocating manner through the extension and retraction of the piston rod.
4. The connecting rod type plate bending machine according to claim 1, wherein the power assembly comprises a motor B and a crank;
the motor B is fixedly arranged on the machine body; one end of the crank is fixedly connected with the motor B in a transmission way, and the other end of the crank is hinged with the pull rod.
5. The link plate bending machine according to claim 2, wherein the linkage assembly includes an upper link and a lower link;
the top end of the upper connecting rod is hinged to the machine body and is close to the top of the sliding block;
the bottom end of the lower connecting rod is hinged to the sliding block and is close to the bottom of the sliding block;
the bottom end of the upper connecting rod and the top end of the lower connecting rod are respectively hinged with the pull rod.
6. The connecting rod type plate bending machine according to claim 5, wherein the bottom end of the upper connecting rod is hinged with the top end of the lower connecting rod through a rotating shaft;
the pull rod is plate-shaped or rod-shaped and is of a two-force rod structure;
one end of the pull rod is hinged to the driving block, and the other end of the pull rod is hinged to the rotating shaft.
7. The connecting rod type plate bending machine according to claim 5, wherein the pull rod is in a flat plate-shaped triangular structure;
one end of the pull rod is hinged to the bottom end of the upper connecting rod through a first hinged shaft, and the other end of the pull rod is hinged to the top end of the lower connecting rod through a second hinged shaft;
the end part of the pull rod far away from the linkage component is hinged to the power component through a hinge shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020150533.9U CN211757826U (en) | 2020-02-03 | 2020-02-03 | Connecting rod type plate bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020150533.9U CN211757826U (en) | 2020-02-03 | 2020-02-03 | Connecting rod type plate bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211757826U true CN211757826U (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020150533.9U Active CN211757826U (en) | 2020-02-03 | 2020-02-03 | Connecting rod type plate bending machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211757826U (en) |
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2020
- 2020-02-03 CN CN202020150533.9U patent/CN211757826U/en active Active
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