Machine tool for machining sheet metal parts

Abstract

The invention relates to the technical field of stamping part machining, in particular to a sheet metal part machining machine tool which comprises a punching machine, a feeding mechanism and a discharging mechanical arm. The feeding mechanism comprises a first moving module, a material taking air cylinder, a fixing rod and a fixing piece. The punching machine comprises a fixing frame, a mounting plate, a hydraulic cylinder, a pressing piece, an upper die and a lower die. According to the device, a material taking air cylinder drives a fixing rod to move downwards, a suction cup makes contact with a sheet metal part, the material taking air cylinder drives the fixing rod to continuously move downwards and press the sheet metal part downwards, the sheet metal part is prevented from being in an inclined state, at the moment, a protruding block moves along a curved groove, a fixing part deflects, and then the suction cup deflects; by means of the magnetic separator, the sheet metal parts adsorbed by the suction cup and the sheet metal parts below the suction cup move relatively, the sheet metal parts are separated easily, the separation success rate of the magnetic separator is increased, and under the action of the magnetic separator, the suction cup only takes one sheet metal part every time.

Description

Technical Field

[0001] This invention relates to the field of stamping processing technology, and more specifically to a machine tool for processing sheet metal parts. Background Technology

[0002] When sheet metal parts are stamped, a sheet metal processing punch is required for processing. Because sheet metal parts are thin, two sheet metal parts will stick together when they are loaded, which is inconvenient for subsequent processing.

[0003] Chinese Patent Application No. 202211081861.8 discloses a fully automatic feeding device with a magnetic slitting mechanism, including an adaptive feeding platform, a gripping device, an oiling device, and a cleaning device. The feeding platform includes a frame with a turntable rotatably mounted on it. The turntable has several clearance holes, and limit rods are provided around the clearance holes. A lifting cylinder is also provided on the frame, which can lift the parts upward through the clearance holes. A magnetic slitting device is also provided on the frame. This invention provides a fully automatic feeding device with a magnetic slitting mechanism, which can avoid the phenomenon of multiple parts sticking together during feeding, thereby improving the feeding quality. At the same time, the parts are cleaned before oiling during feeding, thus preventing particulate matter from adhering to the parts and causing damage to the surface of the parts in the next process, thereby improving the quality of the parts, reducing production costs, and completing the double-sided oiling of the parts, further improving production efficiency.

[0004] In practical use, magnetic sheet separators still have a certain probability of separation failure. When two sheet metal parts move relative to each other, the separation probability of the magnetic sheet separator can be increased.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of this invention is to provide a machine tool for processing sheet metal parts that can effectively solve the above-mentioned technical problems.

[0007] To achieve the objectives of this invention, the following technical solution is adopted: A sheet metal processing machine tool includes: a punch press, a loading mechanism, and a unloading robot; the loading mechanism includes: a first moving module, a picking cylinder fixedly mounted on the first moving module, a fixing rod fixedly mounted on the picking cylinder, and a fixing member fixedly mounted on the fixing rod; a connecting block is fixedly mounted on the fixing rod, the connecting block has a curved groove, and a protrusion is fixedly mounted on the fixing member, the protrusion being inserted into the curved groove and slidingly contacting the connecting block; the sheet metal part contacts a positioning rod, a strong magnet is installed inside the positioning rod, and the three positioning rods constitute a magnetic separator; the punch press includes a fixed frame, a mounting plate fixedly mounted on the fixed frame, a hydraulic cylinder fixedly mounted on the mounting plate, a lower pressing member fixedly connected to the push rod of the hydraulic cylinder, an upper die fixedly mounted on the lower pressing member, and a lower die located below the upper die.

[0008] Furthermore, the feeding mechanism also includes: a fixed plate, a first positioning plate located on both sides of the fixed plate, and a positioning cylinder that drives the first positioning plate to move toward the fixed plate to position the sheet metal part.

[0009] Furthermore: the first moving module is fixedly installed on the machine base, the second moving module is fixedly installed on the machine base, the second moving module is equipped with a moving plate, the sheet metal parts are placed on the moving plate, and the positioning rod is fixedly installed on the machine base.

[0010] Furthermore: a guide sleeve is fixedly installed on the mounting plate, a connecting guide rod is slidably installed inside the guide sleeve, the connecting guide rod is in slidable contact with the lower pressing component, and the lower mold is fixedly installed on the fixed base.

[0011] Furthermore, the connecting guide rod is connected to a power component that drives its movement.

[0012] Furthermore: a positioning guide is fixedly installed on the fixed base, a positioning push rod is slidably installed on the positioning guide, and a second positioning plate is fixedly installed at one end of the positioning push rod.

[0013] Furthermore, a first spring is fitted onto the positioning push rod.

[0014] Furthermore: a pusher positioning rod is fixedly installed on the fixed base, a lifting plate is slidably installed on the pusher positioning rod, a top material rod is fixedly installed on the lifting plate, and a top material through hole is opened on the lower mold.

[0015] Furthermore: a second spring is provided between the lifting plate and the fixed frame, and a contact bushing is fixedly installed on the lifting plate.

[0016] Furthermore: a connecting extension plate is fixedly connected to the unloading robot arm, and a suction nozzle is fixedly installed on the connecting extension plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This invention relates to a machine tool for processing sheet metal parts. The picking cylinder drives the fixing rod downwards, bringing the suction cup into contact with the sheet metal part. The picking cylinder then drives the fixing rod to continue moving downwards, pressing down on the sheet metal part to prevent it from tilting. At this time, the protrusion moves along the curved groove, causing the fixing member to deflect, which in turn causes the suction cup to deflect. This allows the sheet metal part held by the suction cup to move relative to the sheet metal part below it, making them easier to separate and improving the separation success rate of the magnetic separator. Under the action of the magnetic separator, the suction cup picks up only one sheet at a time. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the machine tool for processing sheet metal parts according to the present invention.

[0020] Figure 2 This is a partial structural schematic diagram of the machine tool for processing sheet metal parts according to the present invention.

[0021] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle.

[0022] Figure 4 This is a schematic diagram of a punch press for the sheet metal processing machine tool of the present invention.

[0023] Figure 5 for Figure 4 Enlarged schematic diagram of part B.

[0024] Figure 6 This is a schematic diagram of the positioning guide component of the machine tool for processing sheet metal parts according to the present invention.

[0025] Figure 7 This is a schematic diagram of the feeding mechanism of the machine tool for processing sheet metal parts according to the present invention.

[0026] Figure 8 This is a schematic diagram of the connecting block of the machine tool for processing sheet metal parts according to the present invention.

[0027] Figure 9 for Figure 8 An enlarged schematic diagram of section C.

[0028] Figure 10 This is a cross-sectional view of the lower mold and fixed base of the machine tool for processing sheet metal parts according to the present invention.

[0029] In the diagram: 100, feeding mechanism; 200, punch press; 300, unloading robot; 400, safety fence; 500, hydraulic station; 101. First moving module; 102. Material picking cylinder; 103. Fixing rod; 104. Fixing component; 105. Suction cup; 106. Fixing plate; 107. First positioning plate; 108. Positioning cylinder; 109. Connecting block one; 110. Curved groove; 111. Protrusion; 112. Bracket; 113. Machine base; 114. Second moving module; 115. Positioning rod; 201. Fixed frame; 202. Mounting plate; 203. Hydraulic cylinder; 204. Lower pressing component; 205. Upper mold; 206. Lower mold; 207. Guide sleeve; 208. Connecting guide rod; 209. Power component; 210. Ejector block; 211. Fixed seat; 212. Positioning guide component; 213. Positioning push rod; 214. Second positioning plate; 215. First spring; 216. Push positioning rod; 217. Lifting plate; 218. Ejector rod; 219. Ejector through hole; 220. Contact bushing; 2121. Vertical plate; 2122. Horizontal plate; 2123. Positioning bushing; 301. Connecting extension plate; 302. Suction nozzle; 303. Production line. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. When a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intermediate component at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0032] like Figures 1 to 10As shown, the sheet metal processing machine tool of the present invention includes: a loading mechanism 100, a punch press 200, and an unloading robot 300. The loading mechanism 100 places the sheet metal part on the punch press 200, the punch press 200 performs punching processing on the sheet metal part to process it into the required shape, and then the unloading robot 300 removes the processed sheet metal part.

[0033] The feeding mechanism 100 includes: a first moving module 101, a picking cylinder 102 fixedly installed on the first moving module 101, and a fixing rod 103 fixedly installed on the picking cylinder 102; the first moving module 101 drives the fixing rod 103 to move through the picking cylinder 102, so that the fixing rod 103 moves closer to or further away from the punch press 200, thereby placing the sheet metal part on the punch press 200.

[0034] In one embodiment, fixing members 104 are fixedly installed at both ends of the fixing rod 103, and suction cups 105 are fixedly installed on the fixing members 104. The picking cylinder 102 drives the fixing rod 103 to move downward, so that the suction cups 105 contact the sheet metal part. Then the picking cylinder 102 drives the fixing rod 103 to move upward, and the first moving module 101 drives the picking cylinder 102 to move, thereby enabling material loading.

[0035] In this application, fixing members 104 are installed at both ends of the fixing rod 103. The fixing member 104 on the left side is used to transport the sheet metal part from the positive material position to the punch press 200, and the fixing member 104 on the right side is used to transport the sheet metal part from the storage position to the positive material position.

[0036] A fixing plate 106 is provided at the material positioning position, and first positioning plates 107 are located on both sides of the fixing plate 106. Positioning cylinders 108 move the first positioning plates 107 toward the fixing plate 106 to position the sheet metal part. The sheet metal part is placed on the fixing plate 106, and the positioning cylinders 108 on both sides move the first positioning plates 107 so that the first positioning plates 107 contact the edge of the sheet metal part and are then aligned.

[0037] In one embodiment, a connecting block 109 is fixedly installed on the fixing rod 103, the connecting block 109 is provided with a curved groove 110, and a protrusion 111 is fixedly installed on the fixing member 104. The protrusion 111 is inserted into the curved groove 110 and slides in contact with the connecting block.

[0038] In this embodiment, the picking cylinder 102 drives the fixing rod 103 to move downward, and the suction cup 105 contacts the sheet metal part. The picking cylinder 102 drives the fixing rod 103 to continue to move downward, pressing the sheet metal part. At this time, the protrusion 111 moves along the curved groove 110, causing the fixing member 104 to deflect, which in turn causes the suction cup 105 to deflect, so that the sheet metal part adsorbed by the suction cup 105 moves relative to the sheet metal part below it, making it easier for them to separate.

[0039] As a further supplement to this solution, a second connecting block is fixedly installed on the fixing rod 103, and a straight groove is fixedly installed on the second connecting block. A positioning member is fixedly installed on another fixing member 104, which passes through the straight groove and slides in contact with the second connecting block.

[0040] In this invention, two fixing members 104 are provided. The fixing member 104 on the right side should prevent multiple sheet metal parts from sticking together when picking up materials, and the fixing member 104 on the left side should be height-matched with the fixing member 104 on the right side; therefore, the connecting block 2 is fixedly installed on the left side of the fixing rod 103.

[0041] It should be noted that during use, the weight of the suction cup 105 and the fixing member 104 will cause the protrusion 111 to be located at the lower end of the groove 110.

[0042] The first mobile module 101 is fixedly installed on the machine base 113 by the bracket 112, the fixed plate 106 is fixedly installed on the support plate, and the support plate is fixedly installed on the machine base 113 by the support rod.

[0043] It should be added that the height of the fixing plate 106 is higher than the height of the support plate, so that the outer edge of the sheet metal part is outside the fixing plate 106, and the aligning cylinder 108 is fixedly installed on the support plate.

[0044] A second moving module 114 is fixedly installed on the machine base 113. A moving plate is installed on the second moving module 114, and sheet metal parts are placed on the moving plate, so that the second moving module 114 can drive the sheet metal parts to move through the moving plate.

[0045] Positioning rods 115 are fixedly installed on the machine base 113, and the sheet metal parts contact the positioning rods 115. There are three positioning rods 115, and each pair is 120 degrees apart, so that the sheet metal parts can be positioned in a better manner. Strong magnets are installed inside the positioning rods 115, so that the three positioning rods 115 form a magnetic separator. The magnetic separator is a mature existing technology and will not be described in detail.

[0046] In other words, in this application, by using the groove 110 and the protrusion 111 provided on the connecting block 109, the fixing member 104 will deflect, thereby causing the uppermost sheet metal part and the second sheet metal part to move relative to each other, making it easier to separate the uppermost sheet metal part and the second sheet metal part. With the help of the magnetic separator, the sheet metal parts are prevented from sticking together.

[0047] The picking cylinder 102 drives the fixing rod 103 to move downward, and the suction cup 105 contacts the sheet metal part. The picking cylinder 102 drives the fixing rod 103 to continue to move downward, pressing down on the sheet metal part to prevent it from being tilted. At this time, the protrusion 111 moves along the curved groove 110, causing the fixing member 104 to deflect, which in turn causes the suction cup 105 to deflect, so that the sheet metal part adsorbed by the suction cup 105 moves relative to the sheet metal part below it, making it easier to separate them and improving the separation success rate of the magnetic separator. Under the action of the magnetic separator, the suction cup 105 picks up only one piece at a time.

[0048] The punch press 200 includes a fixed frame 201, a mounting plate 202 fixedly mounted on the fixed frame 201, a hydraulic cylinder 203 fixedly mounted on the mounting plate 202, a lower pressing member 204 fixedly connected to the push rod of the hydraulic cylinder 203, an upper die 205 fixedly mounted on the lower pressing member 204, and a lower die 206 located below the upper die 205.

[0049] The feeding mechanism 100 places the sheet metal part on the lower mold 206, and the hydraulic cylinder 203 drives the upper mold 205 to move downward to punch the sheet metal part.

[0050] A guide sleeve 207 is fixedly installed on the mounting plate 202. A connecting guide rod 208 is slidably installed inside the guide sleeve 207. The connecting guide rod 208 is in slidable contact with the pressing member 204. The guide sleeve 207 allows the connecting guide rod 208 to move axially. The connecting guide rod 208 allows the pressing member 204 to move stably.

[0051] In one embodiment, a power component 209 is connected to the connecting guide rod 208 to drive its movement, and the power component 209 drives the connecting guide rod 208 to move axially.

[0052] During the punching stage, the power component 209 first drives the connecting guide rod 208 to move downward, and then the hydraulic cylinder 203 drives the pressing component 204 to move downward. At this time, the pressing component 204 slides on the connecting guide rod 208. The connecting guide rod 208 can guide the movement of the pressing component 204, so that the pressing component 204 can move stably.

[0053] During the loading stage, the power component 209 drives the connecting guide rod 208 to move upward. When the first moving module 101 drives the fixing rod 103 to place the sheet metal part on the lower mold 206, the connecting guide rod 208 can be prevented from blocking the fixing rod 103, making the loading smoother.

[0054] A top block 210 is fixedly connected to the connecting guide rod 208. The lower mold 206 is fixedly installed on the fixed base 211, and the fixed base 211 is fixedly installed on the fixed frame 201. A positioning guide 212 is fixedly installed on the fixed base 211. A positioning push rod 213 is slidably installed on the positioning guide 212. A second positioning plate 214 is fixedly installed at one end of the positioning push rod 213. The second positioning plate 214 is located outside the lower mold 206. When the second positioning plate 214 moves towards the center, it positions the sheet metal parts inside the lower mold 206, allowing the sheet metal parts to enter the lower mold 206.

[0055] Specifically, the positioning guide 212 consists of two vertical plates 2121, a horizontal plate 2122, and a positioning bushing 2123 fixedly mounted on the vertical plates 2121. The vertical plates 2121 have positioning through holes, through which the positioning push rod 213 passes and slides in contact with the positioning bushing 2123, allowing the positioning push rod 213 to slide on the positioning guide 212. A first spring 215 is fitted onto the positioning push rod 213, and a stop plate is integrally connected to the positioning push rod 213. The diameter of the stop plate is larger than the diameter of the positioning through hole. One end of the first spring 215 abuts against the horizontal plate 2122 near the lower mold 206, and the other end of the first spring 215 abuts against the stop plate. Thus, the first spring 215 causes the second positioning plate 214 to tend to move away from the lower mold 206.

[0056] The top block 210 has a lower inclined surface and an upper inclined surface. One end of the positioning push rod 213 is a spherical contact end. When the top block 210 moves downward, the lower inclined surface first contacts the spherical contact end. The spherical contact end slides on the lower inclined surface, causing the second positioning plates 214 to move closer to each other for positioning. Then the spherical contact end slides on the upper inclined surface, causing the second positioning plates 214 to move away from each other, that is, away from the lower mold 206, so as to avoid affecting the upper mold 205.

[0057] A pusher positioning rod 216 is fixedly installed on the fixed base 211. A lifting plate 217 is slidably installed on the pusher positioning rod 216. A top material rod 218 is fixedly installed on the lifting plate 217. A top material through hole 219 is opened on the lower die 206. The top material rod 218 moves upward to push out the stamped sheet metal part.

[0058] A second spring is provided between the lifting plate 217 and the fixed frame 201. A contact bushing 220 is fixedly installed on the lifting plate 217. The lower end of the connecting guide rod 208 can be inserted into the contact bushing 220, that is, the contact bushing 220 can position the connecting guide rod 208. In actual use, the connecting guide rod 208 moves downward and presses the lifting plate 217. The lifting plate 217 drives the ejector rod 218 to move downward, so that the ejector rod 218 enters the ejector through hole 219. Then the upper die 205 moves downward. At this time, the connecting guide rod 208 positions the lower pressing part 204. The upper die 205 and the lower die 206 close the mold to punch the sheet metal part. After punching, under the action of the second spring, the lifting plate 217 is pushed upward, so that the ejector rod 218 moves upward and ejects the punched sheet metal part.

[0059] As a further improvement of the present invention, an infrared proximity switch is installed on the fixing frame 201 to sense the movement of the lifting plate 217.

[0060] The unloading robot 300 is fixedly connected to a connecting extension plate 301, and a suction nozzle 302 is fixedly installed on the connecting extension plate 301 for picking up the punched sheet metal parts. The unloading robot 300 places the unloading robot 300 on the production line 303.

[0061] In this invention, a safety fence 400 is also provided to isolate personnel to the periphery of this application, so that personnel are in a safe area.

[0062] In this invention, a hydraulic station 500 is also provided, which is connected to the hydraulic cylinder 203.

[0063] In this invention, a vacuum generator is connected to the suction cup 105 and the suction nozzle 302, and the power component 209 is a cylinder or a hydraulic cylinder.

[0064] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0065] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A machine tool for processing sheet metal parts, characterized in that: include: Punch press (200), feeding mechanism (100) and unloading robot (300); The feeding mechanism (100) includes: a first moving module (101), a picking cylinder (102) fixedly installed on the first moving module (101), a fixing rod (103) fixedly installed on the picking cylinder (102), and a fixing member (104) fixedly installed on the fixing rod (103). A connecting block (109) is fixedly installed on the fixing rod (103). A curved groove (110) is provided on the connecting block (109). A protrusion (111) is fixedly installed on the fixing member (104). The protrusion (111) is inserted into the curved groove (110) and slides in contact with the connecting block. The sheet metal part contacts the positioning rod (115), and a strong magnet is installed inside the positioning rod (115). The three positioning rods (115) constitute a magnetic separator. The punch press (200) includes a fixed frame (201), a mounting plate (202) fixedly mounted on the fixed frame (201), a hydraulic cylinder (203) fixedly mounted on the mounting plate (202), a lower pressing member (204) fixedly connected to the push rod of the hydraulic cylinder (203), an upper die (205) fixedly mounted on the lower pressing member (204), and a lower die (206) located below the upper die (205).

2. The machine tool for sheet metal processing as described in claim 1, characterized in that: The feeding mechanism (100) further includes: a fixed plate (106), a first positioning plate (107) located on both sides of the fixed plate (106), and a positioning cylinder (108) that drives the first positioning plate (107) to move toward the fixed plate (106) to position the sheet metal part.

3. The machine tool for sheet metal processing as described in claim 2, characterized in that: The first moving module (101) is fixedly installed on the machine base (113), the second moving module (114) is fixedly installed on the machine base (113), the second moving module (114) is equipped with a moving plate, the sheet metal parts are placed on the moving plate, and the positioning rod (115) is fixedly installed on the machine base (113).

4. The machine tool for sheet metal processing as described in claim 1, characterized in that: A guide sleeve (207) is fixedly installed on the mounting plate (202), and a connecting guide rod (208) is slidably installed inside the guide sleeve (207). The connecting guide rod (208) slides in contact with the lower pressing member (204), and the lower mold (206) is fixedly installed on the fixed base (211).

5. The machine tool for sheet metal processing as described in claim 4, characterized in that: The connecting guide rod (208) is connected to a power component (209) that drives its movement.

6. The machine tool for processing sheet metal parts as described in claim 5, characterized in that: A positioning guide (212) is fixedly installed on the fixed base (211), and a positioning push rod (213) is slidably installed on the positioning guide (212). A second positioning plate (214) is fixedly installed at one end of the positioning push rod (213).

7. The machine tool for processing sheet metal parts as described in claim 6, characterized in that: A first spring (215) is fitted onto the positioning push rod (213).

8. The machine tool for processing sheet metal parts as described in claim 4, characterized in that: A pusher positioning rod (216) is fixedly installed on the fixed base (211), a lifting plate (217) is slidably installed on the pusher positioning rod (216), a top material rod (218) is fixedly installed on the lifting plate (217), and a top material through hole (219) is opened on the lower mold (206).

9. The machine tool for processing sheet metal parts as described in claim 8, characterized in that: A second spring is provided between the lifting plate (217) and the fixed frame (201), and a contact bushing (220) is fixedly installed on the lifting plate (217).

10. The machine tool for processing sheet metal parts as described in claim 1, characterized in that: A connecting extension plate (301) is fixedly connected to the unloading robot (300), and a suction nozzle (302) is fixedly installed on the connecting extension plate (301).

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