A ring-shaped synchronous belt punching device

Abstract

The present invention proposes an annular synchronous belt punching device, comprising a frame, on which a synchronous belt running device and a punching device are arranged; the synchronous belt running device drives the annular synchronous belt to run in a circular direction, and the synchronous belt passes through the punching device; the punching device is connected to a PLC and a touch screen controller, and the controller controls the punching device to clamp and position the synchronous belt and punch the synchronous belt. By using the technical solution of the present invention, automatic positioning and rapid punching are achieved through the cooperation of the PLC and the touch screen controller with the punching device and the synchronous belt running device, and the whole machine has the characteristics of stable operation and simple operation.

Description

Technical Field

[0001] The invention relates to the technical field of synchronous belt processing, and in particular to an annular synchronous belt punching device. Background Art

[0002] The transmission ratio of synchronous belt transmission is accurate, the force on the shaft is small, the structure is compact, and it is oil-resistant, wear-resistant, and anti-aging. The production demand for synchronous belts is large, and the safety performance requirements are higher. Synchronous belt punching is the main processing procedure. The general synchronous belt punching requires manual operation of the punching equipment, the punching position is inaccurate, and the efficiency is low. There are also automatic punching by machines, but the punching during the operation of the synchronous belt is very likely to cause the punching to be off-position, which also affects the quality of the finished synchronous belt. Summary of the invention

[0003] In order to solve the defects of low efficiency and inaccurate punching of synchronous belts in the prior art, the present invention proposes an annular synchronous belt punching device to realize the automation of synchronous belt punching and ensure automatic and accurate adjustment of hole spacing.

[0004] The specific technical solutions of the present invention are as follows:

[0005] A ring-shaped synchronous belt punching device comprises a frame, on which a synchronous belt running device and a punching device are arranged; the synchronous belt running device drives the ring-shaped synchronous belt to run in a circular direction, and the synchronous belt passes through the punching device; the punching device is connected to a PLC and a touch screen controller, and the PLC and the touch screen controller control the punching device to clamp and position the synchronous belt and punch holes in the synchronous belt.

[0006] Furthermore, the punching device includes a hydraulic cylinder, an automatic clamping device, a punching head and a lower punching plate; the hydraulic cylinder is connected to the PLC and the touch screen controller, and the cylinder rod of the hydraulic cylinder is connected to the automatic clamping device and drives the automatic clamping device to move downward, the automatic clamping device is connected to the punching head through a fixed block, and the automatic clamping device drives the punching head to move to the lower punching plate through the fixed block. In this way, the automation of punching can be achieved.

[0007] Furthermore, the punching head includes an upper punching plate, a punch disposed at the bottom of the upper punching plate, and a spring ejector disposed in the punch, the spring ejector includes a spring fixed to the top of the inside of the punch and an ejector fixed to the end of the spring, and the lower punching plate is provided with a through hole corresponding to the punch; when the punch punches the synchronous belt, the punch drives the spring ejector to pass through the synchronous belt and enter the through hole; when the punch moves up, the ejector at the end of the spring pushes the scraps punched out by the punch downward. In this way, the waste can be removed in time while punching to avoid affecting the subsequent punching process.

[0008] Furthermore, the upper part of the automatic clamping device is against a depth positioning block, the top end of the oil cylinder rod is inserted into the depth positioning block, and a reset buffer device is also provided between the automatic clamping device and the punching head. Thus, the pre-tightening of the punched synchronous belt is ensured and the punching burrs are reduced. The PLC and touch screen controller control the oil cylinder rod to extend, the oil cylinder rod is inserted into the depth positioning block, and the automatic clamping device is driven to move downward. The reset buffer device is compressed and deformed to delay the time, so that the descending speed of the oil cylinder rod is buffered and reduced. The automatic clamping device drives the punching head to move downward and clamps the synchronous belt for positioning.

[0009] Furthermore, the punching device further comprises a vertically arranged guide light axis, the automatic clamping device is provided with a first guide hole corresponding to the guide light axis, and the automatic clamping device moves vertically up and down along the guide light axis through the first guide hole, so that the punching head descends vertically and punches holes of the same specification as the punching head at the required spacing on the synchronous belt.

[0010] Furthermore, a guide block is provided on the rear side of the upper punching plate, and a second guide hole corresponding to the guide block is provided on the rear side of the upper punching plate. The guide block is provided in the second guide hole and moves up and down in the second guide hole. The stable operation of the upper punching plate is ensured again, so that the punch head descends vertically and punches holes of the same specification as the punch head with the required spacing in the synchronous belt. Furthermore, the synchronous belt operation device includes a synchronous pulley, a redirecting wheel and an automatic tensioning wheel provided on the frame, and the synchronous belt is provided on the synchronous pulley, the redirecting wheel and the automatic tensioning wheel in sequence. The synchronous pulley is driven by a servo motor and drives the synchronous belt to perform a circular operation on the synchronous pulley, the redirecting wheel and the automatic tensioning wheel, and the PLC and the touch screen controller control the operation of the servo motor; the punching device is provided in the circular operation area of ​​the synchronous belt, and the synchronous belt passes through the punching device horizontally. Therefore, punching can be performed during the operation of the synchronous belt, and the continuity and accuracy of the punching are achieved.

[0011] Furthermore, the synchronous belt pulley and the automatic tensioning wheel are arranged at the same height, the redirecting wheel is arranged above the synchronous belt pulley and the automatic tensioning wheel, and the automatic tensioning wheel can be slidably arranged on the frame. In this way, synchronous belts of different models and lengths can be processed, and the synchronous belt pulley can form a sufficiently large angle with the redirecting wheel and the automatic tensioning wheel, which is convenient for installing the punching device, avoiding the problems of inaccurate punching positioning when the traditional punching machine has no redirecting wheel and the inability to punch when the synchronous belt thickness is large.

[0012] Furthermore, a linear guide is provided on the frame, the inner end of the guide is connected to a cylinder, the automatic tensioning wheel is provided on the tensioning wheel shaft, the bracket of the automatic tensioning wheel shaft is fixedly connected to the cylinder rod of the cylinder; the cylinder drives the cylinder rod to move forward and backward, and the cylinder rod drives the automatic tensioning wheel to move along the linear guide. Thus, the stable horizontal movement of the automatic tensioning wheel is realized to adapt to the punching processing of synchronous pulleys of different lengths, and the angle between the redirecting wheel and the automatic tensioning wheel and the synchronous pulley can be adjusted.

[0013] Furthermore, the bottom end of the automatic tensioner shaft is connected with a rotation speed and rotation angle displacement detection sensor, which detects the rotation speed and rotation displacement of the automatic tensioner, and the driving shaft of the synchronous pulley is connected with a grating encoder, which detects the rotation speed and rotation displacement of the synchronous pulley, and the rotation speed and rotation angle displacement detection sensor and the grating encoder are both connected to the PLC and the touch screen controller. Thus, through the detection of the rotation speed and rotation angle displacement detection sensor and the grating encoder and the control of the PLC and the touch screen controller, the set value detection of the synchronous belt punching distance can be achieved, and high-precision hole spacing automatic adjustment can be achieved.

[0014] The technical effect achieved by the technical solution of the present invention is: through the cooperation of the controller, the punching device and the synchronous belt running device, automatic positioning and rapid punching are achieved, and the whole machine runs smoothly and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the structure of a punching device in a specific embodiment of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of a punching device in a specific embodiment of the present invention;

[0018] Figure 3 for Figure 2 A cross-sectional view of the punching device structure in the AA direction;

[0019] Figure 4 for Figure 2 A BB-direction cross-sectional view of the punching device structure;

[0020] Figure 5 for Figure 3 An enlarged view of the punching device structure at point C; Figure 6 This is a schematic diagram of the installation of an automatic tensioning wheel in a specific embodiment of the present invention.

[0021] Among them: frame 1, guide rail 11, cylinder 12, cylinder rod 121, synchronous belt running device 2, synchronous belt pulley 21, redirecting wheel 22, automatic tensioning wheel 23, tensioning wheel shaft 24, bracket 25, grating encoder 27, punching device 3, hydraulic cylinder 31, automatic clamping device 32, punching head 33, lower punching plate 34, fixing block 35, depth positioning block 36, reset buffer device 37, guide light axis 38, cylinder rod 311, punching plate 331, punch 332, spring ejector 333, guide block 334, second guide hole 335, spring 3331, ejector 3332, through hole 341, synchronous belt 10, punching equipment 100. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In a specific embodiment of the present invention, see Figure 1 A ring-shaped synchronous belt 10 punching device 100 includes a frame 1, on which a synchronous belt running device 2 and a punching device 3 are arranged; the synchronous belt running device 2 drives the ring-shaped synchronous belt 10 to run in a circular direction, and the synchronous belt 10 passes through the punching device 3; the punching device 3 is connected to a PLC and a touch screen controller (not shown here), and the PLC and the touch screen controller control the punching device 3 to clamp and position the synchronous belt 10 and punch the synchronous belt 10.

[0024] Among them, preferably, Figures 2 to 5 As shown, the punching device 3 includes a hydraulic cylinder 31, an automatic clamping device 32, a punching head 33 and a lower punching plate 34; the hydraulic cylinder 31 is connected to the PLC and the touch screen controller, and the cylinder rod 311 of the hydraulic cylinder 31 is connected to the automatic clamping device 32 and drives the automatic clamping device 32 to move downward, the automatic clamping device 32 is connected to the punching head 33 through a fixing block 35, and the automatic clamping device 32 drives the punching head 33 to move onto the lower punching plate 34 through the fixing block 35. In this way, the automation of punching can be completed.

[0025] In order to remove the scraps produced by the punching head 33 in time, Figure 3 and Figure 5As shown, preferably, the punching head 33 includes an upper punching plate 331, a punch 332 arranged at the bottom of the upper punching plate 331 and a spring ejector 333 arranged in the punch 332, the spring ejector 333 includes a spring 3331 fixed to the top of the inside of the punch 332 and an ejector 3332 fixed to the end of the spring 3331, and the lower punching plate 34 is provided with a through hole 341 corresponding to the punch 332; when the punch 332 punches the synchronous belt 10, the punch 332 drives the spring ejector 333 to pass through the synchronous belt 10 and enter the through hole 341; when the punch 332 moves upward, the ejector 3332 at the end of the spring 3331 pushes the scraps punched out by the punch downward. When each punching is completed and the punch 332 is lifted, the downward elastic force and inertia of the built-in spring 3331 causes the ejector pin 3332 to eject the scraps punched out during punching under the action of the spring force. A negative pressure vacuum cleaner can be arranged under the through hole 341 to suck the scraps and other waste materials into a waste bag at the same time, thereby ensuring environmental hygiene and the continuity of punching.

[0026] At the same time, the upper part of the automatic clamping device 32 is against the depth positioning block 36, and the top of the oil cylinder rod 311 is clamped into the depth positioning block 36 for fixing. A reset buffer device 37 is also provided between the automatic clamping device 32 and the punching head 33. The specific embodiment of the present invention takes the reset spring 37 as an example, and it can obviously be other buffer devices. Therefore, the PLC and the touch screen controller control the oil cylinder rod 311 to extend according to the running state of the synchronous belt 10. After the oil cylinder rod 311 is clamped into the depth positioning block 36, it drives the automatic clamping device 32 to move down, and the reset spring 37 is compressed and deformed for delay, so that the descending speed of the oil cylinder rod 311 is buffered and decreased, and the automatic clamping device 32 drives the punching head 33 to move down and clamp the synchronous belt 10 for positioning. At this time, under the control of the PLC and the touch screen controller, the oil cylinder 31 pressure rises, the oil cylinder rod 311 continues to descend, and the punching head 33 mechanically descends and punches the synchronous belt 10 with the required spacing and the same specifications as the punch 332.

[0027] like Figure 2 and Figure 3 As shown, in a specific embodiment of the present invention, preferably, in order to enable the punching head 33 to move vertically downward, the punching device 3 further includes a vertically arranged guide light axis 38, and the automatic clamping device 32 is provided with a first guide hole corresponding to the guide light axis 38, and the automatic clamping device 32 moves vertically up and down along the guide light axis 38 through the first guide hole. Thus, under the guidance of the guide light axis 38, the punching head 33 descends vertically, and punches holes of the same specification as the punch 332 with the required spacing in the synchronous belt.

[0028] like Figure 4As shown, preferably, a guide block 334 is provided on the rear side of the upper punching plate 331, and a second guide hole 335 corresponding to the guide block 334 is provided on the rear side of the upper punching plate 331, and the guide block 334 is arranged in the second guide hole 335 and moves up and down in the second guide hole 335; thereby, the upper punching plate 331 can move up and down stably, further preventing deviation, and once again ensuring the stable operation of the upper punching plate.

[0029] like Figure 1 and 6 As shown, the synchronous belt running device 2 includes a synchronous pulley 21, a redirecting wheel 22 and an automatic tensioning wheel 23 arranged on the frame, and the synchronous belt 10 is arranged on the synchronous pulley 21, the redirecting wheel 22 and the automatic tensioning wheel 23 in sequence. The synchronous pulley 21 is driven by a servo motor and drives the synchronous belt 10 to perform a circular operation on the synchronous pulley 21, the redirecting wheel 22 and the automatic tensioning wheel 23. The PLC and the touch screen controller control the operation of the servo motor; the punching device 3 is arranged in the area where the synchronous belt runs in a circular manner, and the synchronous belt 10 passes through the punching device 3 horizontally. Therefore, holes can be punched during the operation of the synchronous belt, and the continuity and accuracy of the punching are achieved.

[0030] Preferably, in a specific embodiment of the present invention, the synchronous pulley 21 and the automatic tensioning wheel 23 are arranged at the same height in a horizontal position, the redirecting wheel 22 is arranged above the synchronous pulley 21 and the automatic tensioning wheel 23, and the automatic tensioning wheel 23 can be slidably arranged on the frame 1. In this way, synchronous belts 10 of different models and lengths can be processed, and the synchronous pulley 21 can form a sufficiently large angle with the redirecting wheel 22 and the automatic tensioning wheel 23, which is convenient for installing the punching device 2, avoiding the problems of inaccurate punching positioning when there is no redirecting wheel and failure to punch when the thickness of the synchronous belt is large.

[0031] In a specific embodiment of the present invention, preferably Figure 6 As shown, the automatic tensioning wheel 23 can move left and right on the frame to adapt to the synchronous belt 10 of different lengths. A linear guide 11 can be arranged on the frame 1, and the inner end of the guide 11 is connected to the cylinder 12. The automatic tensioning wheel 23 is arranged on the tensioning wheel shaft 24. The bracket 25 of the automatic tensioning wheel shaft 24 is fixedly connected to the cylinder rod 121 of the cylinder 12; the cylinder 12 drives the cylinder rod 121 to move forward and backward, and the cylinder rod 121 drives the automatic tensioning wheel 23 to move along the linear guide 11. Thereby, the stable horizontal movement of the automatic tensioning wheel 23 is realized to adapt to the punching processing of synchronous belt pulleys 21 of different lengths, and the angle between the redirecting wheel 22 and the automatic tensioning wheel 23 and the synchronous belt pulley 21 can be adjusted, which is also convenient for the installation and disassembly of the punching device 3.

[0032] Preferably, the bottom end of the tension wheel shaft 24 is connected to a displacement detection sensor (not shown here), the displacement detection sensor detects the rotation speed and rotation displacement of the automatic tension wheel 23, the driving shaft of the synchronous pulley 21 is connected to a grating encoder 27, the grating encoder 27 detects the rotation speed and rotation displacement of the synchronous pulley 21, and the displacement detection sensor and the grating encoder 27 are both connected to the PLC and the touch screen controller. Therefore, through the setting of the PLC and the touch screen controller, through the detection of the displacement detection sensor and the grating encoder 27 and the comparison of the set values, the PLC and the touch screen controller control the oil pressure of the oil cylinder 31 of the punching device 3 and the travel speed of the oil cylinder rod 311, and simultaneously control the start and stop of the synchronous pulley 21, so as to achieve the set value detection of the punching distance of the synchronous belt 10 and realize high-precision automatic adjustment of the hole spacing.

[0033] In a specific embodiment of the present invention, when the punching equipment is used, the synchronous belt 10 to be punched is installed on the synchronous pulley 21, the redirecting pulley 22 and the automatic tensioning pulley 23. According to the annular circumference of the synchronous belt 10, the automatic tensioning pulley 23 moves left and right, and the automatic tensioning pulley 23 drives the synchronous belt 10 to be automatically tensioned at the set tension; the controller controls the start of the cylinder 31 and the pressure of the cylinder 31 to adjust the downward movement speed of the cylinder rod 311 according to the set punching spacing value, and simultaneously controls the operating state of the synchronous pulley 21 (start or stop), so as to clamp the synchronous belt in time and perform punching.

[0034] By using the technical solution of the present invention, automatic positioning and rapid punching can be achieved through the cooperation of the controller, the punching device and the synchronous belt running device, and the whole machine has the characteristics of stable operation and easy operation.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An endless synchronous belt punching device, comprising a frame, characterized in that: The frame is provided with a synchronous belt running device and a punching device; the synchronous belt running device drives the annular synchronous belt to run in an annular direction, and the synchronous belt passes through the punching device; the punching device is connected to a PLC and a touch screen controller, and the PLC and the touch screen controller control the punching device to clamp and position the synchronous belt and punch holes in the synchronous belt; The synchronous belt running device comprises a synchronous pulley, a redirecting wheel and an automatic tensioning wheel arranged on a frame, the synchronous belt is arranged on the synchronous pulley, the redirecting wheel and the automatic tensioning wheel in sequence, the synchronous pulley is driven by a servo motor and drives the synchronous belt to perform circular operation on the synchronous pulley, the redirecting wheel and the automatic tensioning wheel, and the PLC and the touch screen controller control the operation of the servo motor; the punching device is arranged in the area where the synchronous belt runs in a circular manner, and the synchronous belt passes through the punching device horizontally; the synchronous pulley and the automatic tensioning wheel are arranged at a horizontal position at the same height, the redirecting wheel is arranged above the synchronous pulley and the automatic tensioning wheel, and the automatic tensioning wheel can be slidably arranged on the frame; The punching device comprises a hydraulic cylinder, an automatic clamping device, a punching head and a lower punching plate; the upper part of the automatic clamping device is against a depth positioning block, the top end of the cylinder rod of the hydraulic cylinder is clamped into the depth positioning block, and a reset buffer device is also provided between the automatic clamping device and the punching head; The punching head includes an upper punching plate, a punch arranged at the bottom of the upper punching plate and a spring ejector arranged in the punch, the spring ejector includes a spring fixed to the top inside the punch and an ejector fixed to the end of the spring, and the lower punching plate is provided with a through hole corresponding to the punch; when the punch punches the synchronous belt, the punch drives the spring ejector to pass through the synchronous belt and enter the through hole; when the punch moves up, the ejector at the end of the spring pushes the scraps punched out by the punch downward.

2. The endless synchronous belt punching device according to claim 1, characterized in that: The hydraulic cylinder is connected to the PLC and the touch screen controller, and the cylinder rod of the hydraulic cylinder is connected to the automatic clamping device and drives the automatic clamping device to move downward. The automatic clamping device is connected to the punching head through a fixed block, and the automatic clamping device drives the punching head to move downward to the lower punching plate through the fixed block.

3. The endless synchronous belt punching device according to claim 1, characterized in that: The punching device also includes a vertically arranged guide light axis, and the automatic clamping device is provided with a first guide hole corresponding to the guide light axis. The automatic clamping device moves vertically up and down along the guide light axis through the first guide hole.

4. The endless synchronous belt punching device according to any one of claims 1 to 2, characterized in that: A guide block is arranged on the rear side of the upper punching plate, and a second guide hole corresponding to the guide block is arranged on the rear side of the upper punching plate. The guide block is arranged in the second guide hole and moves up and down in the second guide hole.

5. The endless synchronous belt punching device according to claim 1, characterized in that: A linear guide rail is arranged on the frame, the inner end of the guide rail is connected to a cylinder, the automatic tensioning wheel is arranged on the automatic tensioning wheel shaft, and the bracket of the automatic tensioning wheel shaft is fixedly connected to the cylinder rod of the cylinder; the cylinder drives the cylinder rod to move forward and backward, and the cylinder rod drives the automatic tensioning wheel to move along the linear guide rail.

6. The endless synchronous belt punching device according to claim 5, characterized in that: The bottom end of the automatic tensioner shaft is connected to a rotation speed and rotation angle displacement detection sensor, which detects the rotation speed and rotation displacement of the automatic tensioner; the driving shaft of the synchronous pulley is connected to a grating encoder, which detects the rotation speed and rotation displacement of the synchronous pulley, and the rotation speed and rotation angle displacement detection sensor and the grating encoder are both connected to the PLC and the touch screen controller.

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