Upper die adjustable structure for multi-section CNC bending machine

Abstract

The utility model discloses an upper die adjustable structure for a multi-section CNC bending machine, which comprises a support, the support is connected with a height adjusting mechanism, the height adjusting mechanism is connected with a mounting plate, the mounting plate is connected with a horizontal adjusting mechanism, the horizontal adjusting mechanism is connected with upper folding knives, and the upper folding knives are arranged in parallel. By adopting the upper die adjustable structure for the multi-section CNC bending machine, the production efficiency is improved, and the development cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sheet metal bending technical field, specifically, the utility model relates to a kind of adjustable structure of upper die for multi-section CNC bending machine. BACKGROUND

[0002] In the production process of the current multi-section plate bending process, the plate needs to pass through multiple bending processes to form the required section, and different bending knives need to be used in different section bending processes. The existing method mostly adopts the way of replacing the bending knife, which is complicated to operate and seriously affects the production efficiency. A few devices use a rotating mechanism to switch the bending knife, but this design is difficult and the development cost of the bending equipment is high.

[0003] The utility model with publication number CN206912049U discloses a sheet metal multi-bending device on January 23, 2018, which includes an upper die part, an upper die part with an upper die seat, an upper die unit installed on the upper die seat, a first installation base on the upper die unit, a first installation base installed on the bottom of the upper die seat, a first punch installed on the bottom of the first installation base, an arc surface on the bottom of the first punch, two second punches symmetrically arranged on the opposite sides of the first punch, a first drive part connected to the top of the first installation base, a second installation base connected to the bottom of the second drive part, and a second installation base exposed from the top of the first installation base after passing through the cavity in the first installation base. A lower die part with a lower die seat, a lower die unit installed on the lower die seat, a first punch groove corresponding to the first punch and a second punch groove corresponding to the second punch on the lower die unit, and a tapered groove on the first punch groove. The sheet metal multi-bending device cannot solve the above-mentioned technical problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at the deficiencies of the prior art, and provides an adjustable structure of upper die for multi-section CNC bending machine, which improves production efficiency and reduces development cost.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme:

[0006] The adjustable structure of upper die for multi-section CNC bending machine includes a bracket, a height adjusting mechanism connected to the bracket, an installation plate connected to the height adjusting mechanism, a horizontal adjusting mechanism connected to the installation plate, an upper bending knife connected to the horizontal adjusting mechanism, and the upper bending knives are arranged side by side.

[0007] The height adjusting mechanism comprises a first driving motor, the first driving motor is connected with a first driving wheel, first driven wheels are arranged on the two sides of the first driving wheel, and a first synchronous belt is connected between the first driving wheel and the first driven wheels; the first driven wheels are fixedly connected with first lead screws, first nuts are arranged on the first lead screws, and the first nuts are fixedly connected with the mounting plate; the horizontal adjusting mechanism comprises a second driving motor, the second driving motor is connected with a second driving wheel, second driven wheels are arranged on the two sides of the second driving wheel, and a second synchronous belt is connected between the second driving wheel and the second driven wheels; the second driven wheels are fixedly connected with second lead screws, second nuts are arranged on the second lead screws, and the bottom of the second nuts is fixedly connected with the upper die seat; and the upper folding knife is arranged at the bottom of the upper die seat.

[0008] The upper folding knife comprises first and second upper folding knives, and the first and second upper folding knives are consistent in height.

[0009] The first and second upper folding knives are both mounted on the upper die seat through bolts, the bottom of the upper die seat is provided with a limiting groove, and the top ends of the first and second upper folding knives are matched with the limiting groove.

[0010] First tensioning wheels are arranged between the first driving wheel and the first driven wheels, and second tensioning wheels are arranged between the second driving wheel and the second driven wheels.

[0011] The support comprises a top plate and side plates, the first driving motor is arranged in the middle of the top plate, the mounting plate is in L-shaped structure in section, and the second driving motor is arranged in the middle of the outer side of the mounting plate.

[0012] The top of the upper die seat is provided with a sliding block, the bottom of the mounting plate is provided with a sliding rail, the sliding block is matched with the sliding rail, and the sliding rails are arranged at equal intervals.

[0013] The first and second lead screws are arranged in pairs.

[0014] The technical effect of the utility model is: the upper die adjusting structure for the multi-section CNC bending machine can realize the plane movement of the folding knife through two groups of adjusting mechanisms, meet the processing requirements of different size plates, the upper folding knife is arranged in parallel, the switching requirements of the folding knife in different bending procedures are realized under the driving of the horizontal adjusting mechanism, the problem that the folding knife is difficult to adjust in the prior art is solved, the cumbersome operation of replacing the folding knife in the traditional way is saved, the production efficiency is ensured, the overall structure is reasonably designed, the function is reliable, the position precision is high, the design difficulty is low, and the development cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification comprises the following drawings, and the shown contents are respectively:

[0016] Figure 1It is the front view of the adjustable structure of the upper die of the multi-section CNC bending machine of the utility model;

[0017] Figure 2 It is the side view of the adjustable structure of the upper die of the multi-section CNC bending machine of the utility model;

[0018] Figure 3 It is the A-A section view of the utility model; Figure 1

[0019] Figure 4 It is the local structure three-dimensional schematic view of the utility model;

[0020] Figure 5 It is the installation schematic view of the upper die seat and the upper bending cutter of the utility model.

[0021] In the drawing, 24 is marked as: 1, support; 11, top plate; 12, side plate; 13, mounting plate; 14, sliding block; 15, sliding rail; 2, first drive motor; 21, first drive wheel; 22, first driven wheel; 23, first synchronous belt; 24, first lead screw; 25, first nut; 26, first tension pulley; 3, second drive motor; 31, second drive wheel; 32, second driven wheel; 33, second synchronous belt; 34, second lead screw; 35, second nut; 36, second tension pulley; 4, upper bending cutter; 41, first upper bending cutter; 42, second upper bending cutter; 5, upper die seat; 51, limiting groove. DETAILED DESCRIPTION

[0022] The specific embodiments of the utility model are further explained in detail by the description of the embodiments with reference to the drawings, the purpose is to help the technical personnel in the field to have more complete, accurate and deep understanding to the inventive concept and technical scheme of the utility model, and help to implement.

[0023] As Figures 1 to 5 Shown, the adjustable structure of the upper die for multi-section CNC bending machine, including support 1, support 1 is connected with height adjusting mechanism, height adjusting mechanism is connected with mounting plate 13, mounting plate 13 is connected with horizontal adjusting mechanism, horizontal adjusting mechanism is connected with upper bending cutter 4, and upper bending cutter 4 is arranged side by side.Upper bending cutter 4 is driven by height adjusting mechanism and horizontal adjusting mechanism to realize position adjustment, and upper bending cutter 4 is arranged side by side, which can meet the switching of bending cutter in different bending processes of plate material, and the position accuracy is guaranteed.The above scheme is adopted, and upper bending cutter 4 does not need to be disassembled from upper die seat 5 when switching, does not affect the normal use of bending machine, does not need to additionally increase other drive components on the bending machine, and the development and design cost is lower.

[0024] As Figures 1 to 5 ​As shown, the height adjusting mechanism includes a first driving motor 2, the first driving motor 2 is connected with a first driving wheel 21, the first driving wheel 21 is provided with a first driven wheel 22 on both sides, and the first driving wheel 21 is connected with the first driven wheel 22 through a first synchronous belt 23; the first driven wheel 22 is fixedly connected with a first screw rod 24, the first screw rod 24 is provided with a first nut 25, and the first nut 25 is fixedly connected with the mounting plate 13; the horizontal adjusting mechanism includes a second driving motor 3, the second driving motor 3 is connected with a second driving wheel 31, the second driving wheel 31 is provided with a second driven wheel 32 on both sides, and the second driving wheel 31 is connected with the second driven wheel 32 through a second synchronous belt 33; the second driven wheel 32 is fixedly connected with a second screw rod 34, the second screw rod 34 is provided with a second nut 35, and the bottom of the second nut 35 is fixedly connected with the upper die seat 5; the upper folding knife 4 is arranged at the bottom of the upper die seat 5. The above structure, the height adjusting mechanism and the horizontal adjusting mechanism are both powered by the driving motor, which drives the synchronous belt to drive the driven wheel, and then uses the screw nut mechanism to drive the folding knife to adjust the height and the horizontal position, so that the folding knife can move in the plane under the operation of the two adjusting mechanisms, which can meet the production of different sizes of plates and realize the horizontal position switching of the two folding knives; each driving wheel is provided with two synchronous belts to drive two driven wheels, and the two synchronous belts are distributed in a staggered manner on the driving wheel to avoid space interference.

[0025] As shown in Figure 5 The upper folding knife 4 includes a first upper folding knife 41 and a second upper folding knife 42, and the first upper folding knife 41 and the second upper folding knife 42 are at the same height. The upper folding knife 4 is provided with two upper folding knives, and after the plate is bent for the first time, the position of the folding knife only needs to be adjusted horizontally to bend for the second time. Compared with the traditional way of replacing the folding knife, the complicated steps of adjusting the position of the folding knife in the second bending process are omitted, the operation is simpler, and the production efficiency is greatly improved. Since the two upper folding knives 4 are at the same height, the upper folding knife 4 that has completed the bending process will not contact and extrude the plate.

[0026] As shown in Figure 5 The first upper folding knife 41 and the second upper folding knife 42 are both installed on the upper die seat 5 through bolts, the bottom of the upper die seat 5 is provided with a limiting groove 51, and the top end of the first upper folding knife 41 and the second upper folding knife 42 is matched with the limiting groove 51. The two upper folding knives 4 are connected through bolts, which is convenient for subsequent disassembly and maintenance. For the forming needs of plates with different cross sections, different upper folding knives 4 can be replaced to achieve the function of one bending machine with multiple uses, thereby reducing the cost. The upper die seat 5 is provided with the limiting groove 51 matched with the folding knife, so that the two upper folding knives 4 are accurately connected with the upper die seat 5, the installation precision of the folding knife is guaranteed, the parts can be quickly positioned and installed during assembly, and the assembly difficulty is reduced.

[0027] As shown in Figure 4As shown, the first drive wheel 21 and the first driven wheel 22 are provided with the first tension wheel 26, and the second drive wheel 31 and the second driven wheel 32 are provided with the second tension wheel 36. The tension wheel adjusts the tension of the synchronous belt, avoids the slip or excessive wear caused by the slack or tight synchronous belt, ensures the stability and reliability of the belt transmission system, and further ensures the consistency of the lead screw transmission, and further ensures the direction accuracy of the vertical or horizontal movement of the folding knife.

[0028] As shown in the figure, Figure 1 The bracket 1 includes a top plate 11 and a side plate 12, the first drive motor 2 is arranged in the middle of the top plate 11, the mounting plate 13 is L-shaped in cross section, and the second drive motor 3 is arranged in the middle of the outer side of the mounting plate 13. The two drive motors are arranged in the middle of the top plate 11 and the middle of the mounting plate 13 respectively, which ensures the consistency of the movement of the driven wheels driven by the synchronous belt, and the L-shaped mounting plate 13 ensures the installation accuracy of the components mounted thereon. The drive wheel, the driven wheel and the tension wheel are all provided with mounting bracket structures, which are stably fixed on the top plate 11 and the mounting plate 13 to ensure the stability of the posture of the above-mentioned components.

[0029] As shown in the figure, Figure 4 The top of the upper die seat 5 is provided with a sliding block 14, and the bottom of the mounting plate 13 is provided with a sliding rail 15. The sliding block 14 cooperates with the sliding rail 15, and the sliding rails 15 are arranged at equal intervals. The above-mentioned structure guides the horizontal movement of the upper die seat 5 through the movement of the sliding block 14 on the sliding rail 15, improves the accuracy after position adjustment, and the sliding block 14 and the sliding rail 15 are arranged on the inner side of the mounting plate 13, which also guides the vertical movement of the mounting plate 13.

[0030] As shown in the figure, Figures 1 to 4 The first lead screw 24 and the second lead screw 34 are arranged in pairs. The movement of the mounting plate 13 and the upper die seat 5 is realized through two groups of lead screw nut transmission mechanisms, which improves the position accuracy before and after the position change and improves the operation reliability of the bending machine.

[0031] The working principle is as follows: the first drive motor 2 is started, the lead screw is driven to rotate under the action of belt transmission, the mounting plate 13 is driven to move vertically through the lead screw nut transmission, and the purpose of height adjustment of the upper folding knife 4 is achieved. The driving mode of the second drive motor 3 is the same as that of the first drive motor 2, and the purpose of horizontal position adjustment of the upper folding knife 4 is achieved under the driving action of the second drive motor 3. According to the size of the incoming plate, the first upper folding knife 41 corresponds to the edge of the plate through the position change of the upper die seat 5, and the lower die of the bending machine also operates, so that the plate is bent for the first time. When the plate completes the first bending through the first upper folding knife 41, the second drive motor 3 is started to move the upper die seat 5 horizontally to the second upper folding knife 42 corresponding to the bending position of the plate, so that the second bending process can be carried out.

[0032] The upper die adjustable structure for the multi-section CNC bending machine realizes the plane movement of the bending cutter through two groups of adjusting mechanisms, meets the processing requirements of different sizes of plate materials, the upper bending cutter 4 is arranged in parallel, and the switching requirements of the bending cutter in different bending procedures are realized under the driving of the horizontal adjusting mechanism, the problem that the bending cutter is difficult to adjust in the prior art is solved, the cumbersome operation of replacing the bending cutter in the traditional way is omitted, the production efficiency is ensured, the overall structure design is reasonable, the function is reliable, the position precision is high, the design difficulty is low, and the development cost is low.

[0033] The utility model is described exemplarily above in combination with the drawings. Obviously, the utility model specific implementation is not limited by the above-mentioned mode. As long as various non-essential improvements are carried out by adopting the method concept and technical scheme of the utility model; or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. An adjustable structure of an upper die for a multi-section CNC bending machine, characterized in that: Including support (1), the support (1) is connected with height adjusting mechanism, the height adjusting mechanism is connected with mounting plate (13), the mounting plate (13) is connected with horizontal adjusting mechanism, the horizontal adjusting mechanism is connected with upper folding knife (4), the upper folding knife (4) is arranged side by side.

2. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 1, characterized in that: The height adjusting mechanism includes first drive motor (2), the first drive motor (2) is connected with first drive wheel (21), both sides of the first drive wheel (21) are provided with first driven wheel (22), the first drive wheel (21) is connected with first synchronous belt (23) with first driven wheel (22);The first driven wheel (22) is fixedly connected with first screw rod (24), the first screw rod (24) is provided with first nut (25), and the first nut (25) is fixedly connected with mounting plate (13);The horizontal adjusting mechanism includes second drive motor (3), the second drive motor (3) is connected with second drive wheel (31), both sides of the second drive wheel (31) are provided with second driven wheel (32), the second drive wheel (31) is connected with second synchronous belt (33) with second driven wheel (32);The second driven wheel (32) is fixedly connected with second screw rod (34), the second screw rod (34) is provided with second nut (35), and the bottom of the second nut (35) is fixedly connected with upper die seat (5), and the upper folding knife (4) is arranged at the bottom of the upper die seat (5).

3. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 2, characterized in that: The upper folding knife (4) includes first upper folding knife (41) and second upper folding knife (42), and the first upper folding knife (41) and the second upper folding knife (42) are consistent in height.

4. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 3, characterized in that: The first upper folding knife (41) and the second upper folding knife (42) are both mounted on the upper die seat (5) by bolts, the bottom of the upper die seat (5) is provided with a limiting groove (51), and the top end of the first upper folding knife (41) and the second upper folding knife (42) is matched with the limiting groove (51).

5. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 4, characterized in that: First tensioning wheel (26) is arranged between the first drive wheel (21) and the first driven wheel (22), and second tensioning wheel (36) is arranged between the second drive wheel (31) and the second driven wheel (32).

6. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 5, characterized in that: The support (1) includes top plate (11) and side plate (12), the first drive motor (2) is arranged in the middle of the top plate (11), the mounting plate (13) is L-shaped structure in section, and the second drive motor (3) is arranged in the middle of the outer side of the mounting plate (13).

7. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 6, characterized in that: The top of the upper die seat (5) is provided with a sliding block (14), the bottom of the mounting plate (13) is provided with a sliding rail (15), the sliding block (14) is matched with the sliding rail (15), and the sliding rail (15) is arranged at equal intervals.

8. The adjustable upper tool structure for a multi- section CNC bending machine according to claim 6, characterized in that: The first screw rod (24) and the second screw rod (34) are arranged in pairs.

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