A numerical control bending machine for sheet metal with high machining precision

Abstract

The application discloses a sheet metal numerical control bending machine with high machining precision and relates to the technical field of numerical control bending machines.The fixed mechanism is provided with a bending mechanism and a polishing mechanism on the two sides of the outer wall of the fixed mechanism.The bending mechanism comprises two first sliding rails.When the model of the bending plate needs to be replaced, the bending plate is only needed to be moved to one side of the bottom of the matched support frame, then the bending plate is lifted upwards until the bending plate exceeds the support frame, then the bending plate is pushed forward, and then the bending plate is pressed downwards until the bending plate is embedded on the round rod, then the rectangular block is moved backwards, the bending plate can be taken off from the rectangular block, then the rectangular block is moved to the bottom of the bending plate of the required model, then the first hydraulic rod is started, the rectangular block is lifted upwards, then the rectangular block is moved forward until the magnetic suction block is adsorbed in the magnetic suction port, then the rectangular block is lifted upwards again, the bending plate of the current model can be fixed on the rectangular block, and the replacement work of the bending plate is completed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile production, in particular to a numerical control bending machine for sheet metal with high processing precision. BACKGROUND

[0002] Sheet metal is a kind of comprehensive cold working process for metal sheet (usually below 6mm), including shearing, punching / cutting / compounding, bending, riveting, splicing, forming (such as automobile body) and the like, and its remarkable feature is that the thickness of the same part is consistent, and the sheet metal usually needs to be bent during processing, so a sheet metal bending machine is needed.

[0003] However, in the prior art, the bending work of the sheet metal is usually completed by pressing downward with a pressing plate, but for the cut sheet metal, for example, the middle position of the sheet metal needs to be bent, while the two sides remain parallel, or the two sides are bent, and the middle position is parallel, so a smaller bending head is needed to press it, which requires manual replacement of the bending head, and the efficiency is very low, so a new sheet metal bending machine is needed. SUMMARY

[0004] The purpose of the present application is to provide a numerical control bending machine for sheet metal which facilitates replacement of the sheet metal bending head.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a numerical control bending machine for sheet metal with high processing precision, comprising a fixing mechanism, a bending mechanism and a polishing mechanism are respectively arranged on both sides of the outer wall of the fixing mechanism;

[0006] The bending mechanism comprises two first sliding rails, a second threaded rod is movably inserted into the inner surface wall of each of the two first sliding rails, a third motor is fixedly installed on one side of the outer wall of each of the two first sliding rails, the output ends of the two third motors are fixedly connected with one end of the outer wall of the two second threaded rods, a first sliding block is movably sleeved on the outer surface wall of each of the two second threaded rods, a second sliding rail is fixedly installed on the top of each of the two first sliding blocks, a third threaded rod is movably inserted into the inner surface wall of the second sliding rail, a fourth motor is fixedly installed on one side of the outer wall of the second sliding rail, and the output end of the fourth motor is fixedly connected with one end of the outer wall of the third threaded rod, a second sliding block is movably sleeved on the outer surface wall of the third threaded rod, a first hydraulic rod is fixedly installed on the top of the second sliding block, a rectangular block is fixedly installed on the top of the first hydraulic rod, a magnetic attraction block is fixedly installed on one side of the outer wall of the rectangular block, a group of supporting frames are arranged on the top of the two first sliding rails, a group of round rods are fixedly inserted into the top of each of the group of supporting frames, a group of bending plates of different types are movably embedded on the top of each of the three supporting frames, and a magnetic attraction opening is formed in one side of the outer wall of each of the bending plates.

[0007] Preferably, the fixing mechanism comprises a workbench, the top of the workbench is provided with a group of balls, the top of the workbench is fixedly provided with two U-shaped frames, the inner walls of the two U-shaped frames are movably provided with first threaded rods, the outer walls of the two U-shaped frames are fixedly provided with first motors on one side, and the output ends of the two first motors are fixedly connected with the outer walls of the two first threaded rods on one end, respectively, a connecting rod is movably arranged between the outer walls of the two first threaded rods, the top of the connecting rod is fixedly provided with a first electric telescopic rod, the output end of the first electric telescopic rod penetrates through the bottom of the connecting rod, and a second motor is fixedly arranged, the output end of the second motor is fixedly provided with a first pressing plate, the top of the workbench is fixedly provided with a supporting rod, the top of the supporting rod is fixedly provided with a second electric telescopic rod, and the output end of the second electric telescopic rod penetrates through the bottom of the supporting rod and is fixedly provided with a second pressing plate.

[0008] Preferably, the top of the workbench is fixedly provided with two electric push rods, and the output ends of the two electric push rods are fixedly provided with limiting plates.

[0009] Preferably, the polishing mechanism comprises a transmission device, the top of the transmission device is fixedly provided with a protective shell, the outer walls of the protective shell are movably provided with third sliding blocks on both sides, the opposite sides of the two third sliding blocks are movably provided with a polishing wheel, the outer wall of one of the two third sliding blocks is fixedly provided with a fifth motor on one side, and the output end of the fifth motor is fixedly connected with the outer wall of the polishing wheel on one end.

[0010] Preferably, the top of the protective shell is fixedly provided with two second hydraulic rods, and the output ends of the two second hydraulic rods penetrate through the top of the protective shell and are fixedly connected with the top of the two third sliding blocks, respectively.

[0011] Preferably, the top of the protective shell is fixedly communicated with a wind cylinder, the inner wall of the wind cylinder is fixedly provided with a fan, and the bottom of the transmission device is provided with a waste box.

[0012] Preferably, the inner wall of the waste box is movably provided with a storage box, and the outer wall of the storage box is fixedly provided with a handle on one side.

[0013] Preferably, the inner walls of the protective shell are provided with baffle strips on both sides, and the shapes and sizes of the two baffle strips are equal.

[0014] Preferably, the top of the wind cylinder is fixedly communicated with a cylinder, and the inner wall of the cylinder is fixedly provided with a grille.

[0015] Preferably, the two first sliding rails are located on the outer wall of the workbench on one side, and the transmission device is located at the input end of the workbench.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] In the application, by setting the bending mechanism, under the action of the first slide rail and the second slide rail, the bending plate can be driven to move in the X-axis and Y-axis directions, and the first hydraulic rod can drive the bending plate to lift up or press down, so that the sheet metal can be bent. When the model of the bending plate needs to be replaced, the bending plate is only moved to one side of the bottom of the matched support frame, then the bending plate is lifted up until it exceeds the support frame, then the bending plate is pushed forward and pressed down until it is embedded on the round rod, and then the rectangular block is moved backward to remove the bending plate from the rectangular block, then the rectangular block is moved to the bottom of the bending plate of the required model, and then the first hydraulic rod is started to lift the rectangular block, and then the rectangular block is moved forward until the magnetic block is attracted in the magnetic suction port, and then the rectangular block is lifted up to fix the bending plate of the current model on the rectangular block, so that the replacement of the bending plate is completed.

[0018] 2、In the application, by setting the fixing mechanism, the sheet metal can be fixed on the workbench, which facilitates the bending work of the bending mechanism, and the sheet metal can be rotated by the fixing mechanism, so that manual rotation of the sheet metal is not needed, so that the sheet metal can be bent in any direction, thereby increasing the practicality of the device.

[0019] 3、In the application, by setting the polishing mechanism, the rust on the surface of the sheet metal can be polished, which facilitates the subsequent bending work of the sheet metal, and the polished rust can be collected to prevent the rust from scattering and flying everywhere and polluting the entire factory. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the main view of the numerical control bending machine for sheet metal with high machining precision in the application;

[0021] Figure 2 It is a structure schematic view of the bending mechanism of the main view of the numerical control bending machine for sheet metal with high machining precision in the application;

[0022] Figure 3 It is a structure schematic view of the bottom side of the bending mechanism of the numerical control bending machine for sheet metal with high machining precision in the application;

[0023] Figure 4 It is a structure schematic view of the bending mechanism of the numerical control bending machine for sheet metal with high machining precision in the application;

[0024] Figure 5 It is a structure schematic view of the main view of the fixing mechanism of the numerical control bending machine for sheet metal with high machining precision in the application;

[0025] Figure 6It is a structure schematic diagram of the side view of the fixed mechanism in the sheet metal numerical control bending machine with high machining precision of the application;

[0026] Figure 7 It is a structure schematic diagram of the front view of the polishing mechanism in the sheet metal numerical control bending machine with high machining precision of the application;

[0027] Figure 8 It is a structure schematic diagram of the cross section of the polishing mechanism in the sheet metal numerical control bending machine with high machining precision of the application.

[0028] In the figure: 1, fixed mechanism; 101, workbench; 102, ball; 103, U-shaped frame; 104, first threaded rod; 105, first motor; 106, connecting rod; 107, first electric telescopic rod; 108, second motor; 109, first pressing plate; 110, supporting rod; 111, second electric telescopic rod; 112, second pressing plate; 113, electric push rod; 114, limiting plate; 2, bending mechanism; 201, first sliding rail; 202, second threaded rod; 203, third motor; 204, first sliding block; 205, second sliding rail; 206, third threaded rod; 207, fourth motor; 208, second sliding block; 209, first hydraulic rod; 210, rectangular block; 211, magnetic suction block; 212, supporting frame; 213, round rod; 214, bending plate; 215, magnetic suction port; 3, polishing mechanism; 301, transmission device; 302, protective shell; 303, third sliding block; 304, fifth motor; 305, polishing wheel; 306, second hydraulic rod; 307, air cylinder; 308, fan; 309, waste box; 310, storage box; 311, handle; 312, stop bar; 313, cylinder; 314, grid. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application. EMBODIMENT

[0030] Referring to Figures 1-8 The application discloses a sheet metal numerical control bending machine with high machining precision, which comprises a fixed mechanism 1, and a bending mechanism 2 and a polishing mechanism 3 are arranged on the two sides of the outer wall of the fixed mechanism 1.

[0031] The bending mechanism 2 comprises two first sliding rails 201, the inner walls of the two first sliding rails 201 are movably provided with second threaded rods 202, the outer walls of one of the two first sliding rails 201 are fixedly provided with third motors 203, the output ends of the two third motors 203 are fixedly connected with the outer wall ends of the two second threaded rods 202, the outer walls of the two second threaded rods 202 are movably sleeved with first sliding blocks 204, the top of the two first sliding blocks 204 is fixedly provided with a second sliding rail 205, the inner wall of the second sliding rail 205 is movably provided with a third threaded rod 206, the outer wall of the second sliding rail 205 is fixedly provided with a fourth motor 207, the output end of the fourth motor 207 is fixedly connected with the outer wall end of the third threaded rod 206, the outer wall of the third threaded rod 206 is movably sleeved with a second sliding block 208, the top of the second sliding block 208 is fixedly provided with a first hydraulic rod 209, the top of the first hydraulic rod 209 is fixedly provided with a rectangular block 210, the outer wall of the rectangular block 210 is fixedly provided with a magnetic block 211, a group of supporting frames 212 are arranged on the top of the two first sliding rails 201, a group of round rods 213 are fixedly arranged on the top of the group of supporting frames 212, the top of the three supporting frames 212 is movably embedded with a group of bending plates 214 of different types, and a magnetic suction port 215 is formed in the outer wall of each bending plate 214.

[0032] Referring to Figure 1 , Figure 5 and Figure 6 , the fixing mechanism 1 comprises a workbench 101, a group of balls 102 are arranged on the top of the workbench 101, two U-shaped frames 103 are fixedly arranged on the top of the workbench 101, the inner walls of the two U-shaped frames 103 are movably provided with first threaded rods 104, the outer walls of the two U-shaped frames 103 are fixedly provided with first motors 105, the output ends of the two first motors 105 are fixedly connected with the outer wall ends of the two first threaded rods 104, the outer walls of the two first threaded rods 104 are movably sleeved with a connecting rod 106, the top of the connecting rod 106 is fixedly provided with a first electric telescopic rod 107, the output end of the first electric telescopic rod 107 penetrates through the bottom of the connecting rod 106 and is fixedly provided with a second motor 108, the output end of the second motor 108 is fixedly sleeved with a first pressing plate 109, a supporting rod 110 is fixedly arranged on the top of the workbench 101, a second electric telescopic rod 111 is fixedly arranged on the top of the supporting rod 110, the output end of the second electric telescopic rod 111 penetrates through the bottom of the supporting rod 110 and is fixedly sleeved with a second pressing plate 112, so that the sheet metal can be fixed and rotated under the action of the fixing mechanism 1, thereby facilitating the subsequent bending work of the sheet metal.

[0033] Referring to Figure 1 , Figure 5 and Figure 6As shown: the top of the workbench 101 is fixedly installed with two electric push rods 113, the output ends of the two electric push rods 113 are fixedly sleeved with limiting plates 114, and the electric push rod 113 is started. The two limiting plates 114 can be pushed inward, so that the sheet metal can be limited.

[0034] Referring to Figure 7 and Figure 8 As shown: the polishing mechanism 3 comprises a conveying device 301, the top of the conveying device 301 is fixedly installed with a protective shell 302, the outer wall of the protective shell 302 is movably embedded with a third sliding block 303 on both sides, a polishing wheel 305 is movably inserted between the opposite sides of the two third sliding blocks 303, one of the outer walls of the two third sliding blocks 303 is fixedly installed with a fifth motor 304, and the output end of the fifth motor 304 is fixedly connected with one end of the outer wall of the polishing wheel 305. It is convenient to polish the sheet metal under the action of the polishing mechanism 3.

[0035] Referring to Figure 7 and Figure 8 As shown: the top of the protective shell 302 is fixedly installed with two second hydraulic rods 306, and the output ends of the two second hydraulic rods 306 are respectively fixedly connected with the top of the two third sliding blocks 303, so that the height of the third sliding block 303 can be changed under the action of the second hydraulic rod 306, so that the height of the polishing wheel 305 can be changed.

[0036] Referring to Figure 7 and Figure 8 As shown: the top of the protective shell 302 is fixedly connected with a wind cylinder 307, the inner surface wall of the wind cylinder 307 is fixedly installed with a fan 308, and the bottom of the conveying device 301 is provided with a waste box 309. The iron filings can be blown into the waste box 309 by starting the fan 308.

[0037] Referring to Figure 7 and Figure 8 As shown: the inner surface wall of the waste box 309 is movably inserted with a storage box 310, the outer wall of the storage box 310 is fixedly installed with a handle 311, and the storage box 310 can be pulled out by pulling the handle 311.

[0038] Referring to Figure 7 and Figure 8 As shown: the inner wall of the protective shell 302 is provided with a stop strip 312 on both sides, and the shape and size of the two stop strips 312 are equal. The stop strip 312 can prevent iron filings from flying out.

[0039] Referring to Figure 7 and Figure 8 As shown: the top of the wind cylinder 307 is fixedly connected with a cylinder 313, and the inner surface wall of the cylinder 313 is fixedly installed with a grille 314, so as to protect the fan 308 under the action of the grille 314.

[0040] Referring to Figure 1 As shown in the figure: two first sliding rails 201 are located on the outer wall side of the workbench 101, and the transmission device 301 is located at the input end of the workbench 101.

[0041] The working principle and method of using the device: when in use, first place the sheet metal on the transmission device 301, the transmission device 301 will drive the sheet metal to move forward until the sheet metal moves to the bottom of the protective shell 302, then start the second hydraulic rod 306, press the polishing wheel 305 down until the polishing wheel 305 is attached to the surface of the sheet metal, then start the fifth motor 304, which will drive the polishing wheel 305 to rotate, when the polishing wheel 305 rotates, it will polish the sheet metal, then start the fan 308, which can blow the polished iron core into the storage box 310, after polishing is completed, the sheet metal will be transmitted to the workbench 101, then start the first electric telescopic rod 107, which will drive the first pressing plate 109 to press down, then start the first motor 105, which will drive the first threaded rod 104 to rotate, when the first threaded rod 104 rotates, it will drive the first pressing plate 109 to move forward, under the action of the ball 102, it can drive the sheet metal to move forward, then start the electric push rod 113, at this time the limiting plate 114 will be squeezed inward, which can limit the sheet metal, until the sheet metal moves to the edge of the workbench 101, then start the second electric telescopic rod 111, which can press the second pressing plate 112 on the sheet metal, so as to fix the sheet metal, at this time, start the first hydraulic rod 209, which can move the bending plate 214 upward, so as to bend the sheet metal, when the model of the bending plate 214 needs to be replaced, start the third motor 203, which can drive the second threaded rod 202 to rotate, so as to drive the first sliding block 204 to move in the X-axis direction, and further drive the rectangular block 210 to move in the X-axis direction, start the fourth motor 207, which will drive the third threaded rod 206 to rotate, so as to drive the second sliding block 208 to move in the Y-axis direction, and further drive the rectangular block 210 to move in the Y-axis direction, at this time, only need to move the bending plate 214 to the bottom of one side of the support frame 212, then lift the bending plate 214 upward until the bending plate 214 exceeds the support frame 212, then push the bending plate 214 forward and press it downward until the bending plate 214 is embedded on the round rod 213, then move the rectangular block 210 backward to remove the bending plate 214 from the rectangular block 210, then move the rectangular block 210 to the bottom of the required model of the bending plate 214, then start the first hydraulic rod 209 to lift the rectangular block 210 upward, then move the rectangular block 210 forward until the magnetic block 211 is attracted in the magnetic suction port 215, then lift the rectangular block 210 upward to fix the current model of the bending plate 214 on the rectangular block 210, so as to complete the replacement work of the bending plate 214, thus solving the problems raised in the above background.

[0042] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications can be made to the foregoing embodiments, or additional techniques can be utilized, without departing from the scope of the present application. Any such modifications or additional techniques are intended to fall within the scope of the present application.

Claims

1. A high-precision CNC bending machine for sheet metal processing, characterized in that: It includes a fixing mechanism (1), and a bending mechanism (2) and a polishing mechanism (3) are respectively provided on both sides of the outer wall of the fixing mechanism (1); The bending mechanism (2) includes two first slide rails (201). A second threaded rod (202) is movably inserted into the inner surface of each of the two first slide rails (201). A third motor (203) is fixedly installed on one side of the outer wall of one of the two first slide rails (201), and the output ends of the two third motors (203) are respectively fixedly connected to one end of the outer wall of the two second threaded rods (202). A first slider (204) is movably sleeved on the outer surface of each of the two second threaded rods (202). A second slide rail (205) is fixedly installed on the top of each of the two first sliders (204). A third threaded rod (206) is movably inserted into the inner surface of the second slide rail (205). A fourth motor (207) is fixedly installed on one side of the outer wall of the second slide rail (205), and the fourth motor (207)... The output end of the third threaded rod (206) is fixedly connected to one end of the outer wall of the third threaded rod (206). The outer wall of the third threaded rod (206) is movably fitted with a second slider (208). The top of the second slider (208) is fixedly installed with a first hydraulic rod (209). The top of the first hydraulic rod (209) is fixedly installed with a rectangular block (210). A magnetic block (211) is fixedly installed on one side of the outer wall of the rectangular block (210). A set of support frames (212) is set on the top of the two first slide rails (201). A set of round rods (213) is fixedly inserted on the top of each set of support frames (212). A set of bent plates (214) of different models are movably embedded on the top of the three support frames (212). A magnetic suction port (215) is opened on one side of the outer wall of each bent plate (214). The fixing mechanism (1) includes a workbench (101), a set of ball bearings (102) is provided on the top of the workbench (101), two U-shaped frames (103) are fixedly installed on the top of the workbench (101), a first threaded rod (104) is movably inserted into the inner surface of each of the two U-shaped frames (103), a first motor (105) is fixedly installed on one side of the outer wall of each of the two U-shaped frames (103), and the output ends of the two first motors (105) are respectively fixedly connected to one end of the outer wall of the two first threaded rods (104), a connecting rod (106) is movably sleeved between the outer walls of the two first threaded rods (104), and a first electric telescopic rod (107) is fixedly installed on the top of the connecting rod (106). The output end of the first electric telescopic rod (107) passes through the bottom of the connecting rod (106) and is fixedly installed with a second motor (108). The output end of the second motor (108) is fixedly fitted with a first pressure plate (109). The top of the workbench (101) is fixedly installed with a support rod (110). The top of the support rod (110) is fixedly installed with a second electric telescopic rod (111). The output end of the second electric telescopic rod (111) passes through the bottom of the support rod (110) and is fixedly fitted with a second pressure plate (112). The top of the workbench (101) is fixedly installed with two electric push rods (113). The output ends of the two electric push rods (113) are fixedly fitted with limit plates (114).

2. The high-precision CNC bending machine for sheet metal as described in claim 1, characterized in that: The polishing mechanism (3) includes a transmission device (301), a protective shell (302) is fixedly installed on the top of the transmission device (301), and a third slider (303) is movably embedded on both sides of the outer wall of the protective shell (302). A polishing wheel (305) is movably inserted between the opposite sides of the two third sliders (303). A fifth motor (304) is fixedly installed on one side of the outer wall of one of the two third sliders (303), and the output end of the fifth motor (304) is fixedly connected to one end of the outer wall of the polishing wheel (305).

3. The high-precision CNC bending machine for sheet metal as described in claim 2, characterized in that: Two second hydraulic rods (306) are fixedly installed on the top of the protective shell (302), and the output ends of the two second hydraulic rods (306) penetrate through the top of the protective shell (302) and are fixedly connected to the top of the two third sliders (303) respectively.

4. A high-precision CNC bending machine for sheet metal as described in claim 3, characterized in that: The top of the protective shell (302) is fixedly connected to the air duct (307), the inner wall of the air duct (307) is fixedly installed with a fan (308), and the bottom of the transmission device (301) is provided with a waste box (309).

5. A high-precision CNC bending machine for sheet metal as described in claim 4, characterized in that: The inner wall of the waste box (309) is movably fitted with a storage box (310), and a handle (311) is fixedly installed on one side of the outer wall of the storage box (310).

6. A high-precision CNC bending machine for sheet metal as described in claim 5, characterized in that: The protective shell (302) has baffles (312) on both sides of its inner wall, and the two baffles (312) are of the same shape and size.

7. A high-precision CNC bending machine for sheet metal as described in claim 6, characterized in that: The top of the air duct (307) is fixedly connected to a cylinder (313), and a grid (314) is fixedly installed on the inner wall of the cylinder (313).

8. A high-precision CNC bending machine for sheet metal as described in claim 7, characterized in that: Both of the first slide rails (201) are located on one side of the outer wall of the worktable (101), and the transmission device (301) is located at the input end of the worktable (101).

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