Character pressing machine

Abstract

The utility model discloses a character pressing machine, and belongs to the technical field of character pressing machining. The technical problem of how to improve the working efficiency and reliability is solved. According to the technical scheme, a material pressing mechanism is matched with correction bolts to be used for clamping and fixing the two sides of a workpiece, a telescopic air cylinder is rotationally connected with an air cylinder base, a telescopic rod of the telescopic air cylinder is connected to a pushing base through a floating connector, a sliding block is fixed to the bottom of the pushing base, and the sliding block and a sliding rail are matched for linear sliding; one end of the steering shaft extends into a guide groove of the guide plate, a deflection wheel is arranged on the steering shaft, a wheel groove matched with the deflection wheel to move is formed in the push seat, a thumb air cylinder is fixed to the steering shaft, clamps a workpiece and is driven by a telescopic air cylinder to deflect and be away from a positioning groove, the character pressing machine works safely and reliably, and efficiency is greatly improved. The manipulator is suitable for machining various types of stamping parts, is simple, flexible and rapid in structure, and can adapt to machining of different workpieces by replacing manipulators of different structures.

Description

Technical Field

[0001] This invention relates to the technical field of workpiece lettering processing, and in particular to a lettering machine. Background Technology

[0002] Currently, Chinese patent CN105034627A discloses a hydraulic steel type printing machine for production batch numbers. Its main features are: a threaded hole on the right side of the machine base is connected and fastened to a screw at the lower end of the column; a lifting platform is provided on the upper part of the column; a first through hole on the right side of the lifting platform is dynamically fitted with the outer diameter of the column; a locking wrench is provided on the right end wall of the first through hole; a bracket is provided on the top plane of the column; an adjusting cylinder connected to the lifting platform is provided on the left side of the bracket; a printing cylinder is provided on the left side of the recessed hole of the lifting platform; a fourth flange at the lower part of the piston rod of the printing cylinder is fastened to the steel type printing box; multiple convex-faced steel type printing plates are provided in the rectangular recessed hole of the steel type printing box for easy replacement, and are neatly tightened in the rectangular recessed hole with bolts. This invention is suitable for quickly and neatly printing production batch numbers on the processed surfaces of metal products of various sizes.

[0003] Therefore, for some forging products, it is necessary to emboss textual information on the product during the later stages of processing. For example, wrenches, which are large at both ends and long in the middle, have text embossed in the middle section. For this type of product, a robotic arm is needed to hold the workpiece and place it on the embossing machine. After the embossing machine completes the process, the workpiece can be automatically unloaded from the machine, allowing the robotic arm to place it back on the embossing machine for further text embossing.

[0004] We know that when a letterpressing machine is pressing letters, the pressing pressure is relatively high, which will cause vibration on the workpiece. The workpiece is easily misaligned when placed on the letterpressing machine, thus affecting the letterpressing effect. Moreover, if manual material feeding is used, it is very labor-intensive and inefficient. Utility Model Content

[0005] To address the aforementioned technical problems and shortcomings—specifically, how to improve the reliability and efficiency of type pressing—this invention provides a type pressing machine.

[0006] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0007] A lettering machine includes a machine base, a column, and a stamping device. The column is fixed to the corner of the machine base and supports the stamping device. A positioning mechanism is set in the middle of the machine base. The stamping device is positioned above the clamping mechanism to perform the lettering action on the workpiece. The positioning mechanism includes a positioning seat, a straightening bolt, a pressing mechanism, and a feeding mechanism. The positioning seat has a positioning groove for placing the workpiece. The straightening bolt is installed on one side of the positioning groove, and the pressing mechanism is assembled on the other side of the positioning groove. The pressing mechanism, in conjunction with the straightening bolt, is used to clamp and fix the workpiece on both sides.

[0008] The feeding mechanism includes a cylinder seat, a telescopic cylinder, a floating joint, a pusher, a slider, a slide rail, a steering shaft, a guide plate, and a thumb cylinder;

[0009] The cylinder base is fixed on the machine base. One end of the telescopic cylinder is rotatably connected to one end of the cylinder base. The telescopic rod of the telescopic cylinder is connected to the push base through a floating joint. The bottom of the push base is fixed with a slider. The slider and the slide rail slide linearly together. The steering shaft is rotatably mounted on the push base. One end of the steering shaft extends into the guide groove of the guide plate. A deflection wheel is set on the steering shaft. The push base is set with a wheel groove that moves in coordination with the deflection wheel. A thumb cylinder is fixed on the steering shaft. The thumb cylinder clamps the workpiece and deflects and moves away from the positioning groove under the drive of the telescopic cylinder.

[0010] Preferably, a feeding slide is fixed on one side of the machine base. The feeding slide is located below the feeding mechanism and is used to receive the workpiece released by the thumb cylinder. The bottom slope of the feeding slide is fixed to the machine base by a support rod.

[0011] Preferably, the positioning seat is fixed to the column by a clamp.

[0012] Preferably, a guide pulley is provided at the end of the steering shaft. The guide pulley is in sliding engagement with the inner wall of the guide groove, and the guide groove has a curved guide section and a straight guide section.

[0013] Preferably, the pressing mechanism includes an adjustable calibration cylinder and an adjustable calibration component, wherein the extension and retraction stroke of the calibration cylinder is adjustable, and the vertical position of the calibration component is adjustable.

[0014] Preferably, a material sensor for detecting material shortage is provided on one side of the positioning groove.

[0015] Preferably, it also includes a feeding robot, which is used to clamp the workpiece and move it to the positioning slot.

[0016] In summary, the present invention provides at least one of the following beneficial technical effects:

[0017] 1. The workpiece is secured on the positioning seat by the aligning bolts and the pressure mechanism, which clamps and fixes both sides of the workpiece to prevent it from shifting. Then, the stamping device stamps the workpiece with markings. After that, the pressure mechanism resets and releases the workpiece. The workpiece is then clamped by the thumb cylinder of the unloading mechanism. At this time, driven by the telescopic cylinder, the pusher moves on the slide rail through the slider. The steering shaft deflects under the action of the guide groove, causing the thumb cylinder to first clamp the workpiece and turn it, and then move away from the positioning groove. This action avoids the possibility of the workpiece colliding with the aligning bolt, thus improving the safety and reliability of the operation. Then, the telescopic cylinder continues to drive, so that the workpiece moves away from the positioning groove. Finally, the thumb cylinder releases, completing the unloading operation.

[0018] 2. This driving method greatly improves work efficiency and enhances safety and reliability. The positioning seat is clamped to the column by a clamp, thereby improving the stability of the positioning seat.

[0019] 3. The adjustment bolts are adjustable, making it easy to adapt to various workpieces for printing, thus improving versatility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram illustrating the usage state of an embodiment of the present invention;

[0021] Figure 2 This is a rear-view schematic diagram of the practical state of an embodiment of the present invention;

[0022] Figure 3 This is a top-view schematic diagram of the working state of an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the material handling process;

[0024] Figure 5 yes Figure 4 Enlarged view of part A;

[0025] Figure 6 This is a diagram illustrating the material feeding process;

[0026] Figure 7 yes Figure 6 A diagram showing the rear view;

[0027] Figure 8 This is a schematic diagram of the thumb cylinder deflecting and feeding operation;

[0028] Figure 9 yes Figure 8 A schematic diagram from the rear view.

[0029] Explanation of reference numerals for major components:

[0030] 1. Machine base; 2. Column; 3. Stamping device; 4. Positioning mechanism; 41. Positioning seat; 411. Positioning groove; 42. Correction bolt; 43. Pressing mechanism; 431. Correction cylinder; 432. Correction part; 44. Unloading mechanism; 441. Cylinder seat; 442. Telescopic cylinder; 443. Floating joint; 444. Push seat; 4441. Wheel groove; 445. Slider; 446. Slide rail; 447. Steering shaft; 4471. Deflection wheel; 4472. Guide pulley; 448. Guide plate; 4481. Curved guide section; 4482. Straight guide section; 449. Thumb cylinder; 5. Unloading slide; 6. Support rod; 7. Clamp; 8. Material sensor; 9. Feeding robot; 10. Workpiece. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this invention. Those skilled in the art can easily understand other advantages and effects of this invention from the content disclosed in this specification. This invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this invention. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The illustrations only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be changed at will, and the layout of the components may also be more complex.

[0033] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0034] Example:

[0035] This invention discloses a lettering machine, which, in an environment where a workpiece 10 is used (e.g., a material), and the workpiece 10 is a wrench, requires lettering to be applied to the wrench body. (Reference) Figure 1 and Figure 2 As shown, the typesetting machine is positioned to one side of the feeding robot 9. The feeding robot 9 is used to feed the wrenches one by one in an orderly manner. It clamps the wrenches, moves them, and then delivers them into the typesetting machine. Figure 4 and Figure 5 The feeding robot 9 can be clearly seen clamping or conveying the workpiece 10.

[0036] In this design, the specific structure includes a machine base 1, columns 2, and a stamping device 3. Four columns 2 are fixed at the corners of the machine base 1 and support the stamping device 3. The stamping device 3 is the same as the existing stamping structure and is not the core design of this design, so it will not be described in detail. A positioning mechanism 4 is set in the middle of the machine base 1, and the stamping device 3 is positioned above the clamping mechanism to perform the stamping and printing action on the workpiece 10.

[0037] refer to Figure 3 As shown, the positioning mechanism 4 includes a positioning seat 41, a straightening bolt 42, a clamping mechanism 43, and a feeding mechanism 44. The positioning seat 41 has a positioning groove 411 for the workpiece 10 to be placed in. The straightening bolt 42 is installed on one side of the positioning groove 411, and the clamping mechanism 43 is assembled on the other side of the positioning groove 411. The clamping mechanism 43, in conjunction with the straightening bolt 42, is used to clamp and fix the workpiece 10 on both sides. The straightening bolt 42 uses a threaded engagement to make limit adjustments, thus adapting to the positioning and clamping of workpieces 10 of different widths. Figure 6 and Figure 7 The clamping mechanism 43 includes an adjustable correction cylinder 431 and an adjustable correction component 432. The extension stroke of the correction cylinder 431 is adjustable, and the vertical position of the correction component 432 is adjustable. The correction component 432 is a T-shaped block that fits onto the extension shaft of the correction cylinder 431. The fit is a "convex-concave" fit as shown in the figure. It can be fitted with screws and its height can be adjusted, thereby enabling the clamping of workpieces 10 of different widths.

[0038] The core technologies are as follows:

[0039] refer to Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The feeding mechanism 44 includes a cylinder seat 441, a telescopic cylinder 442, a floating joint 443, a push seat 444, a slider 445, a slide rail 446, a steering shaft 447, a guide plate 448, and a thumb cylinder 449.

[0040] The cylinder base 441 is fixed on the machine base 1. One end of the telescopic cylinder 442 is rotatably connected to one end of the cylinder base 441. The telescopic rod of the telescopic cylinder 442 is connected to the push base 444 through the floating joint 443. The floating joint 443 can maintain flexible pushing and extend service life. The bottom of the push base 444 is fixed with a slider 445. The slider 445 and the slide rail 446 cooperate to slide linearly. The steering shaft 447 is rotatably mounted on the push base 444. One end of the steering shaft 447 extends into the guide groove of the guide plate 448. The steering shaft 447 is provided with a deflection wheel 4471. The push base 444 is provided with a wheel groove 4441 that moves in conjunction with the deflection wheel 4471. The thumb cylinder 449 is fixed on the steering shaft 447. The thumb cylinder 449 clamps the workpiece 10 and deflects and moves away from the positioning groove 411 under the drive of the telescopic cylinder 442.

[0041] Working principle: The slide rail 446 is fixed on the guide plate 448. The telescopic cylinder 442 extends outward, thereby pushing the pusher 444 to move along the guide rail. During this movement, the steering shaft 447 is rotated by the cooperation of the deflection wheel 4471 (eccentric wheel) and the wheel groove 4441. As a result, the thumb cylinder 449 fixed on the steering shaft 447 is also lifted. The thumb cylinder 449 clamps the workpiece 10 and lifts it up, thus avoiding contact with the correction bolt 42 and improving safety. Then the telescopic cylinder 442 continues to extend, and the workpiece 10 is moved away from the positioning groove 411. Finally, the thumb cylinder 449 releases the gripper, causing the workpiece 10 to fall, completing the unloading process.

[0042] As shown in the attached figures, a feeding slide 5 is fixed to one side of the machine base 1. The feeding slide 5 is located below the feeding mechanism 44 and is used to receive the workpiece 10 released by the thumb cylinder 449. The bottom slope of the feeding slide 5 is fixed to the machine base 1 by a support rod 6. The feeding slide can buffer the workpiece 10, allowing it to effectively slide into the material frame.

[0043] To improve operational stability, the positioning seat 41 is fixed to the column 2 by clamps 7. Figure 6 and Figure 7 As can be seen, this reduces the shaking or vibration of the positioning seat 41.

[0044] To ensure smooth operation, a guide pulley 4472 is provided at the end of the steering shaft 447. The guide pulley 4472 is located in a guide groove and slides against the inner wall of the guide groove. The guide groove has a curved guide section 4481 and a straight guide section 4482. This allows for more stable deflection of the thumb cylinder 449.

[0045] To confirm whether workpiece 10 has been removed, a material sensor 8 for detecting material shortage is provided on one side of the positioning groove 411. The material sensor 8 can be an infrared sensor, etc.

[0046] Based on the above solution, a feeding robot 9 is used to clamp the workpiece 10 and move it to the positioning groove 411. The lettering machine of this solution is safe and reliable in operation, with greatly improved efficiency. It is suitable for processing various types of stamped parts, and its structure is simple, flexible, and fast. By replacing the robot with one of different structures, it can adapt to the processing of different workpieces.

[0047] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the scope of the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent changes made to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A lettering machine, comprising a machine base (1), a column (2), and a stamping device (3), wherein the column (2) is fixed at a corner of the machine base (1) and supports the stamping device (3), a positioning mechanism (4) is provided at the middle position of the machine base (1), and the stamping device (3) is positioned above the clamping mechanism to perform a lettering action on the workpiece (10), characterized in that, The positioning mechanism (4) comprises a positioning seat (41), a correction bolt (42), a pressing mechanism (43), and a blanking mechanism (44), the positioning seat (41) is provided with a positioning groove (411) for placing the workpiece (10), one side of the positioning groove (411) is provided with the correction bolt (42), the other side of the positioning groove (411) is provided with the pressing mechanism (43), the pressing mechanism (43) is matched with the correction bolt (42) and used for clamping and fixing two sides of the workpiece (10), The blanking mechanism (44) comprises a cylinder seat (441), a telescopic cylinder (442), a floating joint (443), a push base (444), a sliding block (445), a sliding rail (446), a steering shaft (447), a guide plate (448), and a thumb cylinder (449); The cylinder seat (441) is fixed on the machine table (1), one end of the telescopic cylinder (442) is rotatably connected to one end of the cylinder seat (441), the telescopic rod of the telescopic cylinder (442) is connected to the push base (444) through the floating joint (443), the bottom of the push base (444) is fixed with the sliding block (445), the sliding block (445) and the sliding rail (446) are matched and linearly slide, the steering shaft (447) is rotatably arranged on the push base (444), one end of the steering shaft (447) extends into the guide groove of the guide plate (448), the steering shaft (447) is provided with a deflection wheel (4471), the push base (444) is provided with a wheel groove (4441) matched with the deflection wheel (4471) and movable, the thumb cylinder (449) is fixed on the steering shaft (447), the thumb cylinder (449) clamps the workpiece (10) and deflects and moves away from the positioning groove (411) under the drive of the telescopic cylinder (442).

2. A letterpress machine according to claim 1, wherein One side of the machine table (1) is fixed with a blanking chute (5), the blanking chute (5) is below the blanking mechanism (44) and used for receiving the workpiece (10) released by the thumb cylinder (449), the bottom slope of the blanking chute (5) is fixed on the machine table (1) through the supporting rod (6).

3. A letterpress machine according to claim 1, wherein The positioning seat (41) is fixed on the stand column (2) through the clamp (7).

4. The letterpress machine of claim 1, wherein The end of the steering shaft (447) is provided with a guide pulley (4472), the guide pulley (4472) is slidably matched in the guide groove and the inner wall of the guide groove, the guide groove has a curved guide section (4481) and a straight guide section (4482).

5. The letterpress machine of claim 1, wherein The pressing mechanism (43) comprises an adjustable correction cylinder (431) and an adjustable correction piece (432), the telescopic stroke of the correction cylinder (431) is adjustable, and the up-down position of the correction piece (432) is adjustable.

6. The letterpress machine of claim 1, wherein One side of the positioning groove (411) is provided with a material sensor (8) for detecting material shortage.

7. The letterpress machine of claim 1, wherein The feeding manipulator (9) is used for clamping the workpiece (10) and moving to the positioning groove (411).

Images