Low-energy-consumption improved servo punching machine

Abstract

The utility model relates to the technical field of punching machines, and discloses a low-energy-consumption improved servo punching machine which comprises a machine frame, a servo motor is fixed at the upper end of the machine frame, the servo motor is connected with a crankshaft through a planetary reducer, the crankshaft drives a punching table to ascend and descend through a connecting rod mechanism, and an upper working table plate is fixed at the bottom of the punching table. A lower working table plate is arranged under the upper working table plate and fixedly connected with the rack. The punching table is connected to the rack in a sliding mode, the planetary reducer is fixed to the rack, and the servo motor is electrically connected with the PLC. The servo motor drives the punching table to ascend and descend, parts such as a flywheel and a clutch are reduced, the total weight and the working noise of the punching machine can be effectively reduced, and the production cost of the punching machine is reduced; the punching table can be controlled to ascend and descend in real time through the servo motor, and the problems that a motor of an existing punching machine needs to work all the time and energy consumption is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a low-energy consumption improved servo punching machine. Background Art

[0002] Existing punching machine as the instructions attached Figure 5 As shown, it includes a frame, on which a motor 90 is fixed, the motor drives a small pulley 91 to rotate, and the small pulley drives a flywheel 93 to rotate through a belt 92, a clutch 94 is provided on one side of the flywheel, the output end of the clutch is connected to the crankshaft, the crankshaft drives a punching table 95 to move up or down through a connecting rod mechanism, and the upper mold is fixed on the punching table. When punching is required, the clutch pressure plate fits with the flywheel, so that the kinetic energy is transmitted to the clutch and the crankshaft, so as to drive the punching table to rise and fall through the crankshaft, and when punching is not required, the motor always drives the flywheel to rotate, and the energy consumption is high; at the same time, the existing punching machine uses components such as flywheels and clutches, which are of large mass, have large noise during operation, and are difficult to assemble. Utility Model Content

[0003] The purpose of the utility model is to provide a low-energy consumption improved servo punch press, which drives the punching table up and down through a servo motor, reduces components such as flywheels and clutches, and can effectively reduce the overall weight and working noise of the punch press, and reduce the production cost of the punch press;

[0004] The servo motor can be used to control the real-time lifting and lowering of the punching table, solving the problem that the motor of the existing punching machine needs to work all the time and has high energy consumption.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A low-energy consumption improved servo punching machine includes a frame, a servo motor is fixed on the upper end of the frame, the servo motor is connected to a crankshaft through a planetary reducer, the crankshaft drives the punching table to rise and fall through a connecting rod mechanism, an upper work table is fixed on the bottom of the punching table, a lower work table is arranged directly below the upper work table, and the lower work table is fixedly connected to the frame. The punching table is slidably connected to the frame, the planetary reducer is fixed to the frame, and the servo motor is electrically connected to a PLC controller.

[0007] Through the above-mentioned technological development, the servo motor drives the crankshaft to rotate through the planetary reducer, the crankshaft drives the stamping table to rise and fall through the connecting rod mechanism, the stamping table drives the upper work table to rise and fall, the upper mold is fixed on the upper work table, the lower mold is fixed on the lower work table, and the upper work table drives the upper mold to approach the lower mold to complete the stamping work.

[0008] By driving the punching table up and down with a servo motor, large parts such as the clutch and flywheel are reduced, which can effectively reduce the weight of the entire servo punch press, reduce costs, and avoid the noise generated by the combination of the clutch and flywheel; by controlling the servo motor with PLC, the motor can be stopped and started at any time, solving the problem of existing motors having to rotate all the time and high energy consumption.

[0009] The utility model is further configured as follows: the connecting rod mechanism includes a crank connecting rod, the upper end of the crank connecting rod is rotatably connected to the connecting rod journal of the crankshaft; the lower end of the crank connecting rod is sleeved and fixed with a nut, the nut is threaded with a ball head rod, the lower end ball head of the ball head rod is clamped by a ball head pressing sleeve and a ball head seat arranged above and below, the ball head seat is inserted into the cylinder sleeve, the cylinder sleeve is inserted into the guide hole of the stamping table, the upper end of the ball head pressing sleeve is pressed against the fixed cover, and the fixed cover is fixed on the stamping table;

[0010] The cavity enclosed by the inner wall of the cylinder sleeve and the bottom of the ball head seat is filled with hydraulic oil.

[0011] Through the above technical solution, the crankshaft rotates, the connecting rod journal of the crankshaft drives the crankshaft connecting rod to move, the crankshaft connecting rod drives the ball head rod to move through the nut, when the ball head rod moves downward, it drives the cylinder sleeve to move downward through the ball head seat, and the cylinder sleeve drives the stamping table to move downward, thereby completing the stamping work; when the ball head rod moves upward, it drives the fixed cover to move upward through the ball head pressing sleeve, and the fixed cover drives the stamping table to move up and reset.

[0012] The utility model is further configured as follows: the lower end of the nut is pressed against the cover plate, and the cover plate is fixed to the bottom of the crank connecting rod;

[0013] An oil collecting groove is arranged on the outer side of the crank connecting rod, and the bottom of the oil collecting groove is fixed on the cover plate.

[0014] Since the crankshaft and crank connecting rod need to be filled with lubricating oil when working, and the lubricating oil will overflow during the operation, the overflowing lubricating oil can be collected by the oil collecting tank to prevent it from dripping down to other parts or molds.

[0015] The utility model is further configured as follows: an axle pin is fixed on the ball head of the ball head rod, and the outer end of the pin is inserted into the vertical groove of the ball head pressing sleeve;

[0016] The upper end of the ball head sleeve is fixed with a large gear coaxially arranged therewith, the large gear meshes with a small gear, the small gear is fixed to the lower end of the adjusting shaft, the upper end of the adjusting shaft is clamped on the stop clamp, the stop clamp is fixed on the pressure cover, the pressure cover is located above the large gear and is fixedly connected to the fixed cover. The stop clamp includes a round hole and a wire groove running through one side of the round hole, the two sides of the wire groove are fastened by screws, and the adjusting shaft is inserted into the round hole.

[0017] Through the above technical solution, the screw is loosened, and the adjusting shaft is rotated by a tool. The adjusting shaft drives the small gear to rotate. The small gear drives the ball head of the ball head rod to rotate through the large gear and the pin shaft. The ball head rod is connected to the nut by a thread, so that the ball head rod can move up or down. The ball head rod drives the stamping table to move up or down, thereby completing the mold height adjustment of the stamping table.

[0018] The utility model is further configured as follows: a tapered hole which is larger at the top and smaller at the bottom is formed on the pressure cover, a tapered dustproof plate is sleeved in the tapered hole, and the ball head rod is inserted and sleeved in the middle of the tapered dustproof plate.

[0019] Through the above technical solution, the conical dustproof plate can prevent external dust and other impurities from entering between the ball head, the ball head pressing sleeve and the ball head seat of the ball head rod, thereby ensuring the normal operation of the ball head part.

[0020] The outstanding effects of the utility model are:

[0021] Compared with the existing technology, the servo motor drives the punching table to rise and fall, reducing the flywheel, clutch and other components, which can effectively reduce the overall weight and working noise of the punch press and reduce the production cost of the punch press;

[0022] The servo motor can be used to control the real-time lifting and lowering of the punching table, solving the problem that the motor of the existing punching machine needs to work all the time and has high energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a partial cross-sectional view of the utility model;

[0025] Figure 3 for Figure 2 About the cross-sectional view of BB;

[0026] Figure 4 for Figure 2 A partial enlarged view of A;

[0027] Figure 5 It is a structural schematic diagram of a punch press in the prior art.

[0028] Reference numerals: 10, frame; 11, punching table; 12, upper work table; 13, lower work table;

[0029] 20. Servo motor; 21. Planetary reducer; 22. Crankshaft; 23. Connecting rod mechanism;

[0030] 231, crank connecting rod; 232, nut; 233, ball rod; 234, ball sleeve; 2341, vertical groove; 235, ball seat; 236, cylinder sleeve; 237, fixed cover; 238, hydraulic oil; 239, cover plate; 240, oil collecting groove; 241, pin shaft; 242, large gear; 243, small gear; 244, adjusting shaft; 245, stop clamp; 246, pressure cover; 248, tapered hole; 249, tapered dust plate;

[0031] 2031, first spiral groove; 2032, annular groove;

[0032] 90. Motor; 91. Small pulley; 92. Belt; 93. Flywheel; 94. Clutch; 95. Stamping table. DETAILED DESCRIPTION

[0033] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] The following references Figures 1 to 4 The utility model is described as follows:

[0035] A low-energy consumption improved servo punching machine includes a frame 10, a servo motor 20 is fixed at the upper end of the frame 10, the servo motor 20 is connected to a crankshaft 22 through a planetary reducer 21, the crankshaft 22 drives a punching table 11 to rise and fall through a connecting rod mechanism 23, an upper work table 12 is fixed to the bottom of the punching table 11, a lower work table 13 is provided directly below the upper work table 12, and the lower work table 13 is fixedly connected to the frame 10. The punching table 11 is slidably connected to the frame 10, the planetary reducer is fixed to the frame, and the servo motor is electrically connected to a PLC controller.

[0036] The servo motor drives the crankshaft to rotate through the planetary reducer, the crankshaft drives the stamping table to rise and fall through the connecting rod mechanism, the stamping table drives the upper work table to rise and fall, the upper mold is fixed on the upper work table, the lower mold is fixed on the lower work table, the upper work table drives the upper mold to move closer to the lower mold to complete the stamping work.

[0037] By driving the punching table up and down with a servo motor, large parts such as the clutch and flywheel are reduced, which can effectively reduce the weight of the entire servo punch press, reduce costs, and avoid the noise generated by the combination of the clutch and flywheel; by controlling the servo motor with PLC, the motor can be stopped and started at any time, solving the problem of existing motors having to rotate all the time and high energy consumption.

[0038] The connecting rod mechanism 23 includes a crank connecting rod 231, the upper end of which is rotatably connected to the connecting rod journal of the crankshaft 22; the lower end of the crank connecting rod 231 is sleeved and fixed with a nut 232, the nut 232 is threaded with a ball head rod 233, the lower end ball head of the ball head rod 233 is clamped by a ball head pressing sleeve 234 and a ball head seat 235 arranged above and below, the ball head seat 235 is inserted into a cylinder sleeve 236, the cylinder sleeve 236 is inserted into the guide hole 111 of the punching table 11, the upper end of the ball head pressing sleeve 234 is pressed against a fixed cover 237, and the fixed cover 237 is fixed on the punching table 11;

[0039] The cavity enclosed by the inner wall of the cylinder sleeve 236 and the bottom of the ball seat 235 is filled with hydraulic oil 238 .

[0040] The crankshaft rotates, and the connecting rod journal of the crankshaft drives the crankshaft connecting rod to move. The crankshaft connecting rod drives the ball head rod to move through the nut. When the ball head rod moves downward, it drives the cylinder sleeve downward through the ball head seat, and the cylinder sleeve drives the stamping table downward, thereby completing the stamping work; when the ball head rod moves upward, it drives the fixed cover upward through the ball head pressing sleeve, and the fixed cover drives the stamping table to move up and reset.

[0041] The lower end of the nut 232 is pressed against the cover plate 239, and the cover plate 239 is fixed to the bottom of the crank connecting rod 231;

[0042] An oil collecting groove 240 is provided on the outer side of the crank connecting rod 231 , and the bottom of the oil collecting groove 240 is fixed on the cover plate 239 .

[0043] Since the crankshaft and crank connecting rod need to be filled with lubricating oil when working, and the lubricating oil will overflow during the operation, the overflowing lubricating oil can be collected by the oil collecting tank to prevent it from dripping down to other parts or molds.

[0044] A shaft pin 241 is fixed to the ball head of the ball head rod 233, and the outer end of the shaft pin 241 is inserted into the vertical groove 2341 of the ball head pressing sleeve 234;

[0045] The upper end of the ball head pressing sleeve 234 is fixed with a large gear 242 arranged coaxially therewith, the large gear 242 is meshed with a small gear 243, the small gear 243 is fixed to the lower end of the adjusting shaft 244, the upper end of the adjusting shaft 244 is clamped on the stop clamp 245, the stop clamp 245 is fixed on the pressure cover 246, the pressure cover 246 is located above the large gear 242 and is fixedly connected to the fixed cover 237. The stop clamp includes a circular hole and a wire groove running through one side of the circular hole, the two sides of the wire groove are fastened by screws, and the adjusting shaft is inserted into the circular hole.

[0046] Loosen the screw and use the tool to rotate the adjusting shaft. The adjusting shaft drives the small gear to rotate. The small gear drives the ball head of the ball head rod to rotate through the large gear and the pin shaft. The ball head rod is connected to the nut through a thread, so that the ball head rod can move up or down. The ball head rod drives the stamping table to move up or down, thereby completing the die height adjustment of the stamping table.

[0047] The pressure cover 246 is formed with a tapered hole 248 which is larger at the top and smaller at the bottom. A tapered dustproof plate 249 is sleeved in the tapered hole 248 , and the ball head rod 233 is inserted into the middle of the tapered dustproof plate 249 .

[0048] The conical dustproof plate can prevent foreign dust and other impurities from entering between the ball head, the ball head pressing sleeve and the ball head seat of the ball head rod, thereby ensuring the normal operation of the ball head part.

[0049] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the protection scope of the present invention.

Claims

1. A low energy consumption improved servo punching machine, comprising a frame (10), characterized in that: A servo motor (20) is fixed at the upper end of the frame (10); the servo motor (20) is connected to a crankshaft (22) via a planetary reducer (21); the crankshaft (22) drives the punching table (11) to move up and down via a connecting rod mechanism (23); an upper work table (12) is fixed at the bottom of the punching table (11); a lower work table (13) is provided directly below the upper work table (12); and the lower work table (13) is fixedly connected to the frame (10).

2. The low-energy consumption improved servo punch press according to claim 1, characterized in that: The connecting rod mechanism (23) comprises a crank connecting rod (231), the upper end of the crank connecting rod (231) is rotatably connected to the connecting rod journal of the crankshaft (22); the lower end of the crank connecting rod (231) is sleeved and fixed with a nut (232), the nut (232) is threadedly connected with a ball head rod (233), the lower end ball head of the ball head rod (233) is clamped by a ball head pressing sleeve (234) and a ball head seat (235) arranged above and below, the ball head seat (235) is inserted into a cylinder sleeve (236), the cylinder sleeve (236) is inserted into a guide hole (111) of the punching table (11), the upper end of the ball head pressing sleeve (234) is pressed against a fixed cover (237), and the fixed cover (237) is fixed on the punching table (11); The cavity enclosed by the inner wall of the cylinder sleeve (236) and the bottom of the ball head seat (235) is filled with hydraulic oil (238).

3. The low energy consumption improved servo punch press according to claim 2, characterized in that: The lower end of the nut (232) is pressed against the cover plate (239), and the cover plate (239) is fixed to the bottom of the crank connecting rod (231); An oil collecting groove (240) is provided on the outer side of the crank connecting rod (231), and the bottom of the oil collecting groove (240) is fixed on the cover plate (239).

4. The low energy consumption improved servo punch press according to claim 2, characterized in that: A pin shaft (241) is fixed on the ball head of the ball head rod (233), and the outer end of the pin shaft (241) is inserted into the vertical groove (2341) of the ball head pressing sleeve (234); A large gear (242) coaxially arranged therewith is fixed to the upper end of the ball head pressing sleeve (234); a small gear (243) is meshed with the large gear (242); the small gear (243) is fixed to the lower end of the adjusting shaft (244); the upper end of the adjusting shaft (244) is clamped on a stop clamp (245); the stop clamp (245) is fixed on a pressure cover (246); the pressure cover (246) is located above the large gear (242) and is fixedly connected to the fixed cover (237).

5. The low energy consumption improved servo punch press according to claim 4, characterized in that: The gland (246) is formed with a tapered hole (248) that is larger at the top and smaller at the bottom. A tapered dustproof plate (249) is sleeved in the tapered hole (248). The ball head rod (233) is inserted into the middle of the tapered dustproof plate (249).

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