Cold bending machine

Abstract

The invention discloses a cold bending machine. The cold bending machine comprises a rack; the multi-surface table comprises a plurality of mounting table surfaces which are arranged in the circumferential direction, and the multi-surface table is rotatably mounted on the rack through two ends in the axial direction; the multiple sets of cold bending systems are arranged, and the multiple sets of cold bending systems are correspondingly mounted on the multiple mounting table surfaces of the multi-surface table respectively; the switching mechanism is used for selectively driving the multi-surface table to rotate so as to switch one set of cold bending system on the multi-surface table to a working posture capable of implementing a bending process; and the first driving mechanism is used for providing power for the compression roller in the cold bending system switched to the working posture so that the cold bending system can carry out the bending process. The cold bending machine provided by the invention can be used for processing various bent plates with different parameters.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing equipment, and in particular to a cold bending machine for bending plate parts. Background Art

[0002] In the prior art, a typical cold bending machine used for bending metal sheets usually includes a frame and a cold bending system installed on the frame, wherein the cold bending system includes a plurality of groups of rollers arranged along linear intervals, each group of rollers includes an upper roller and a lower roller arranged upper and lower, the upper roller and the lower roller have matching concave conical surfaces and convex conical surfaces, and, along the arrangement direction, the cone angle of the cone surface of the front roller is different from the cone angle of the cone surface of the rear roller, so that the metal sheet is bent into a certain angle to form a bent plate after passing through each group of upper rollers and lower rollers from back to front in sequence.

[0003] However, each cold bending machine in the prior art is only equipped with one set of cold bending systems, which results in each cold bending machine being able to process only one structure of bent plates, for example, only being able to process bent plates with the same bending angle, or for another example, only being able to process bent plates with the same radius. Summary of the invention

[0004] In view of the above technical problems existing in the prior art, the present invention provides a cold bending machine.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A cold bending machine, comprising:

[0007] frame;

[0008] A multi-faceted table, comprising a plurality of mounting surfaces arranged along the circumferential direction, wherein the multi-faceted table is rotatably mounted on the frame via two ends in the axial direction;

[0009] A cold bending system, comprising a plurality of sets, wherein the plurality of sets of the cold bending system are respectively installed on a plurality of installation surfaces of the multi-surface table;

[0010] A switching mechanism, which is used to selectively switch one of the cold bending systems on the multi-faceted table to a working posture capable of performing a bending process by driving the multi-faceted table to rotate;

[0011] The first driving mechanism is used to provide power to the pressure roller in the cold bending system switched to the working posture so that the cold bending system can perform the bending process.

[0012] Preferably, the first driving mechanism is located at one side of the multi-faceted table, and the first driving mechanism is arranged on the frame in a manner that it can approach and move away from the cold bending system in a working posture; wherein:

[0013] Before switching the cold bending system, the first driving mechanism releases the driving relationship by moving away from the cold bending system in the working posture before switching. After switching the cold bending system, the first driving mechanism establishes the driving relationship by moving closer to the cold bending system in the working posture after switching.

[0014] Preferably,

[0015] The end portions of the driving shafts of each set of pressure rollers arranged in an axially spaced manner in each cold bending system and located on the same side are provided with a first meshing head;

[0016] The first driving mechanism includes a first actuator and a plurality of second meshing heads driven to rotate by the first actuator, and the plurality of second meshing heads are respectively and correspondingly oriented toward the plurality of first meshing heads;

[0017] The first driving mechanism causes the plurality of second engaging heads to synchronously engage with the plurality of first engaging heads by moving toward the cold bending system, and causes the plurality of second engaging heads to synchronously disengage with the plurality of first engaging heads by moving away from the cold bending system.

[0018] Preferably, the switching mechanism includes a second driving mechanism and a positioning mechanism; the second driving mechanism is used to drive the multi-sided table to rotate to an angle so that the cold bending system switches to a working posture, and the positioning mechanism is used to keep the multi-sided table at the rotated angle so that the cold bending system remains in a working posture.

[0019] Preferably, the second driving mechanism comprises a second actuator, and the second actuator is located at a first end of the polygonal table in the axial direction to drive the polygonal table to rotate.

[0020] Preferably, the positioning mechanism comprises: a chuck and a chuck head; the chuck is fixed to the second end of the multi-faceted table, the chuck is provided with a plurality of circumferentially arranged chuck slots, and the chuck head is installed on the first driving mechanism; wherein:

[0021] After the multi-faceted table switches the cold bending system to a working position, when the first driving mechanism establishes a driving relationship with the cold bending system by approaching the cold bending system, the chuck moves with the first driving mechanism and is inserted into the chuck to keep the multi-faceted table at the rotated angle by limiting the rotation of the chuck.

[0022] Preferably, the first driving mechanism further includes a transfer case and a plate frame, the first actuator synchronously drives all the second meshing heads to rotate via the transfer case, the transfer case is fixed on the plate frame, and the plate frame is mounted on the frame through the cooperation of a slide rail and a slider.

[0023] Preferably, the multi-sided table is a three-sided table having three mounting surfaces.

[0024] Preferably, the first actuator comprises an electric motor or a hydraulic motor.

[0025] Preferably, the second actuator comprises an electric motor or a hydraulic motor.

[0026] Compared with the prior art, the cold bending machine provided by the present invention has the following beneficial effects:

[0027] 1. The cold bending machine provided by the present invention is equipped with a rotatable multi-sided table, and a cold bending system is installed on each mounting surface of the multi-sided table. Therefore, by driving the multi-sided table to rotate, the required cold bending system can be selectively turned to a working posture and the bending process can be implemented, so that a cold bending machine provided by the present invention can be used to process bent plates with various different parameters.

[0028] 2. The cold bending machine provided by the present invention is equipped with a driving mechanism (first driving mechanism) that slides with the frame. The driving mechanism can be combined with and separated from the cold bending system by sliding, thereby facilitating the cold bending machine to switch between different cold bending systems. The design is ingenious.

[0029] 3. The cold bending machine provided by the present invention is equipped with a positioning mechanism. When the first driving mechanism is combined with the cold bending system, the positioning mechanism just positions the multi-sided table, so that the cold bending system is in a stable working posture.

[0030] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0032] Figure 1 This is a schematic diagram of the three-dimensional structure of the cold bending machine provided by the present invention (the second meshing head of the first driving mechanism and the first meshing head of the cold bending system are in a separated state).

[0033] Figure 2 for Figure 1 An enlarged view of detail A.

[0034] Figure 3This is a schematic diagram of the three-dimensional structure of the cold bending machine provided by the present invention (the second meshing head of the first driving mechanism and the first meshing head of the cold bending system are in a meshing state).

[0035] Figure 4 This is a view of the installation status of the clamp and the plate frame in the cold bending machine provided by the present invention.

[0036] Figure 5 This is a side view of the cold bending machine provided by the present invention (the cold bending system is not shown).

[0037] Reference numerals:

[0038] 10-frame; 20-multi-sided table; 21-mounting table; 30-cold bending system; 31-driving shaft; 32-first meshing head; 40-switching mechanism; 41-second driving mechanism; 411-second actuator; 42-positioning mechanism; 421-chuck; 4211-slot; 422-chuck; 50-first driving mechanism; 51-first actuator; 52-transfer case; 53-second meshing head; 54-plate frame; 541-slider; 542-slide rail. DETAILED DESCRIPTION

[0039] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0040] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0041] like Figures 1 to 5 As shown, the present invention discloses a cold bending machine, which is used to bend metal plates. The cold bending machine includes: a frame, a multi-faceted table, multiple sets of cold bending systems, a first driving mechanism, and a switching mechanism with a second driving mechanism and a positioning mechanism.

[0042] The multi-faceted table has a plurality of mounting surfaces arranged along the circumferential direction. For example, the multi-faceted table has three mounting surfaces as shown in the attached drawings. The three mounting surfaces make the cross section of the multi-faceted table triangular. In the present invention, the number of mounting surfaces of the multi-faceted table is not limited. The multi-faceted table with three mounting surfaces shown in the attached drawings is only exemplary. The multi-faceted table has two ends in the axial direction, and the multi-faceted table is rotatably mounted on the frame through the two ends in the axial direction.

[0043] A cold bending system for bending metal sheets is installed on each mounting surface of the multi-sided table. In this way, multiple cold bending systems are arranged on the multi-sided table. When one of the mounting surfaces is turned to a horizontal state by driving the multi-sided table, the cold bending system on the mounting surface can perform the bending work on the metal sheets. The posture of the cold bending system at this time may be called the working posture.

[0044] Multiple cold bending systems are configured to bend metal sheets into bent plates with different parameters such as different angles and / or different bending radii. Thus, bent plates with different parameters can be processed by turning different cold bending systems to a working posture and running them. Thus, bent plates with a variety of parameters can be processed by a cold bending machine provided by the present invention.

[0045] The first driving mechanism is used to drive the cold bending system in the working posture to operate. Specifically, the first driving mechanism is used to provide power for the rotation of the pressure roller of the cold bending system. The second driving mechanism in the switching mechanism is used to drive the multi-faceted table to rotate so as to turn the required cold bending system to the working posture. The positioning mechanism in the switching mechanism is used to keep the multi-faceted table at the turned angle, so that the cold bending system can perform the bending process in a stable working posture.

[0046] The first driving mechanism includes: a first actuator such as an electric motor or a hydraulic motor, a transfer case, a plurality of meshing heads (which may be referred to as second meshing heads) and a plate frame. Each cold bending system includes a plurality of groups of rollers (not shown) arranged at intervals along the axial direction of the multi-faceted table, each group of rollers includes two rollers arranged at the upper and lower sides, and a meshing head (which may be referred to as a first meshing head) is fixed to the ends of the drive shafts of all the rollers located at the lower side.

[0047] The plate frame of the first driving mechanism is located on one side of the multi-faceted table in the radial direction. The plate frame is installed on the frame through the cooperation of the slider and the slide rail, and the plate frame can radially approach or move away from the cold bending system in the working posture by sliding on the frame. The transfer case and the first actuator are fixed on the plate frame, all the second meshing heads are installed on the output end of the transfer case and face the first meshing heads of the cold bending system in the working posture one by one. The first actuator can drive all the second meshing heads to rotate synchronously by distributing power through the transfer case, and the second meshing heads are used to respectively mesh with the first meshing heads to achieve synchronous rotation.

[0048] When it is necessary to use the No. 2 cold bending system to replace the No. 1 cold bending system to bend the metal plate frame (it is advisable to name the three sets of cold bending systems on the multi-sided table with three installation tables as No. 1 to No. 3 cold bending systems), first, Figure 1 and Figure 2 As shown, by driving the plate rack away from the No. 1 cold bending system, all the second meshing heads of the first driving mechanism are synchronously separated from all the first meshing heads of the No. 1 cold bending system, thereby synchronously releasing the meshing, and then, the second driving mechanism is used to drive the multi-faceted table to rotate so that the multi-faceted table is rotated to an angle that makes the installation table corresponding to the No. 2 cold bending system in a horizontal state, so that the No. 2 cold bending system is turned to a working posture, and then, as shown in Figure 3 As shown, the plate frame is driven to move toward the No. 2 cold bending system so that all the second engaging heads of the first driving mechanism engage with all the first engaging heads of the No. 2 cold bending system, thereby synchronously driving each group of pressure rollers of the No. 2 cold bending system to rotate to bend the metal sheet into a bent plate.

[0049] The second driving mechanism can have various structural types. Preferably, the second driving mechanism includes a second actuator such as an electric motor and a hydraulic motor. The second actuator is arranged at the first end of the multi-faceted table in the axial direction. Preferably, the second actuator is configured as a stepping motor for controlling the rotation angle of the multi-faceted table.

[0050] After a certain cold bending system is turned to the working position and before the cold bending system performs the bending process, the multi-faceted table is positioned by a positioning mechanism to limit the rotation of the multi-faceted table, so that the cold bending system can be stably maintained in the working position. The positioning mechanism includes a chuck and a chuck head. The chuck is fixed to the second end of the multi-faceted table in the axial direction, such as Figure 4 and Figure 5 As shown, the chuck is fixed on the side of the plate frame of the first driving mechanism and faces the chuck. The chuck is provided with circumferentially arranged slots. After the cold bending system is turned to the working posture, the slots on the chuck are just opposite to the chuck on the plate frame. In this way, when the plate frame moves toward the cold bending system and all the second engaging heads engage with all the first engaging heads of the cold bending system, the chuck is just inserted into the slot of the chuck.

[0051] The cold bending machine provided by the present invention has at least the following advantages:

[0052] 1. The cold bending machine provided by the present invention is equipped with a rotatable multi-sided table, and a cold bending system is installed on each mounting surface of the multi-sided table. Therefore, by driving the multi-sided table to rotate, the required cold bending system can be selectively turned to a working posture and the bending process can be implemented, so that a cold bending machine provided by the present invention can be used to process bent plates with various different parameters.

[0053] 2. The cold bending machine provided by the present invention is equipped with a driving mechanism (first driving mechanism) that slides with the frame. The driving mechanism can be combined with and separated from the cold bending system by sliding, thereby facilitating the cold bending machine to switch between different cold bending systems. The design is ingenious.

[0054] 3. The cold bending machine provided by the present invention is equipped with a positioning mechanism. When the first driving mechanism is combined with the cold bending system, the positioning mechanism just positions the multi-sided table, so that the cold bending system is in a stable working posture.

[0055] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the execution of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0056] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more schemes thereof) may be used in combination with each other. For example, a person of ordinary skill in the art may use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features may be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein as examples or embodiments in the specific embodiments, wherein each claim is independently a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the appended claims and the full scope of equivalent forms granted by these claims.

[0057] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A cold bending machine, characterized in that: include: frame; A multi-faceted table, comprising a plurality of mounting surfaces arranged along the circumferential direction, wherein the multi-faceted table is rotatably mounted on the frame via two ends in the axial direction; A cold bending system, comprising a plurality of sets, wherein the plurality of sets of the cold bending system are respectively installed on a plurality of installation surfaces of the multi-surface table; A switching mechanism, which is used to selectively switch one of the cold bending systems on the multi-faceted table to a working posture capable of performing a bending process by driving the multi-faceted table to rotate; The first driving mechanism is used to provide power to the pressure roller in the cold bending system switched to the working posture so that the cold bending system can perform the bending process.

2. The cold bending machine according to claim 1, characterized in that: The first driving mechanism is located on one side of the multi-faceted table, and the first driving mechanism is arranged on the frame in a manner that it can approach and move away from the cold bending system in a working posture; wherein: Before switching the cold bending system, the first driving mechanism releases the driving relationship by moving away from the cold bending system in the working posture before switching. After switching the cold bending system, the first driving mechanism establishes the driving relationship by moving closer to the cold bending system in the working posture after switching.

3. The cold bending machine according to claim 2, characterized in that: The end portions of the driving shafts of each set of pressure rollers arranged in an axially spaced manner in each cold bending system and located on the same side are provided with a first meshing head; The first driving mechanism includes a first actuator and a plurality of second meshing heads driven to rotate by the first actuator, and the plurality of second meshing heads are respectively and correspondingly oriented toward the plurality of first meshing heads; The first driving mechanism causes the plurality of second engaging heads to synchronously engage with the plurality of first engaging heads by moving toward the cold bending system, and causes the plurality of second engaging heads to synchronously disengage with the plurality of first engaging heads by moving away from the cold bending system.

4. The cold bending machine according to claim 2, characterized in that: The switching mechanism includes a second driving mechanism and a positioning mechanism; the second driving mechanism is used to drive the multi-sided table to rotate to an angle so that the cold bending system switches to a working posture, and the positioning mechanism is used to keep the multi-sided table at the rotated angle so that the cold bending system remains in a working posture.

5. The cold bending machine according to claim 4, characterized in that: The second driving mechanism includes a second actuator, which is located at a first end of the polygonal table in the axial direction and is used to drive the polygonal table to rotate.

6. The cold bending machine according to claim 4, characterized in that: The positioning mechanism includes: a chuck and a chuck head; the chuck is fixed to the second end of the multi-faceted table, the chuck is provided with a plurality of circumferentially arranged chuck slots, and the chuck head is installed on the first driving mechanism; wherein: After the multi-faceted table switches the cold bending system to a working position, when the first driving mechanism establishes a driving relationship with the cold bending system by approaching the cold bending system, the chuck moves with the first driving mechanism and is inserted into the chuck to keep the multi-faceted table at the rotated angle by limiting the rotation of the chuck.

7. The cold bending machine according to claim 6, characterized in that: The first driving mechanism also includes a transfer case and a plate frame. The first actuator synchronously drives all second meshing heads to rotate through the transfer case. The transfer case is fixed on the plate frame, and the plate frame is installed on the frame through the cooperation of slide rails and sliders.

8. The cold bending machine according to claim 1, characterized in that: The multi-sided table is a three-sided table with three mounting surfaces.

9. The cold bending machine according to claim 3, characterized in that: The first actuator comprises an electric motor or a hydraulic motor.

10. The cold bending machine according to claim 5, characterized in that: The second actuator includes an electric motor or a hydraulic motor.

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