Punching machine

Abstract

The utility model discloses a punching machine, which comprises a punching device, a punching device, a pressing device, a pressing device, a pressing device and a pressing device, and is characterized in that the pressing device comprises a pressing head and a transmission shaft; the safety device comprises a detection assembly and a brake assembly, the detection assembly is arranged on a feeding channel of the punching head, the brake assembly comprises an air cylinder and a brake wheel, the brake wheel is installed on the transmission shaft, the air cylinder corresponds to the brake wheel, and the controller is electrically connected with the detection assembly and the brake assembly; when the stamping device is in the working state and the detection assembly detects that the unexpected object enters the feeding channel, the output shaft of the air cylinder is connected to the brake wheel in an inserted mode and enables the transmission shaft to stop rotating. The transmission shaft can be quickly stopped, the braking efficiency is improved, and the safety of operators can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of punching equipment, in particular to a punching machine. Background Art

[0002] Punching machines, as an indispensable equipment in metal forming processing, are widely used in industries such as automobile manufacturing, aerospace, and home appliance manufacturing. Traditional punching machines are mainly composed of a base, a punching device, a control system, etc., and the punching head applies high pressure to the material to achieve processing purposes such as punching, bending, and stretching. However, due to the high speed and high pressure characteristics of the stamping operation, there are high safety risks during the operation, especially for the fingers and body parts of the operator. Existing punching machine designs often focus on processing efficiency and cost control, while ignoring the safety of the operator. In actual production, the operator may accidentally get his hands or other parts of the body involved in the stamping area due to fatigue, distraction, or unfamiliarity with the operating procedures, resulting in serious work-related accidents. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a punching machine that can ensure that the transmission shaft stops quickly, improve braking efficiency, and ensure the safety of operators.

[0004] A punching machine according to a first embodiment of the present invention includes: a base;

[0005] A punching device is provided on the base, the punching device includes a punching head and a transmission shaft, and the punching head is in transmission connection with the transmission shaft;

[0006] The safety device includes a detection component and a brake component. The detection component is arranged in the feed channel of the punch head. The brake component includes a cylinder and a brake wheel. The brake wheel is installed on the transmission shaft. The cylinder is arranged corresponding to the brake wheel.

[0007] a controller, electrically connected to the detection component and the brake component;

[0008] Wherein, when the punching device is in working state, when the detection component detects that an unexpected object enters the feed channel, the output shaft of the cylinder is plugged into the brake wheel and stops the rotation of the transmission shaft.

[0009] A punching machine according to an embodiment of the present invention has at least the following beneficial effects: by setting a highly sensitive detection component at the feed channel of the punch head, the present invention can immediately trigger a safety response the moment an unexpected object (such as a human body part) enters the feed area. This design significantly shortens the time from detection to response, effectively avoiding injuries caused by delayed response; when the detection component triggers a safety response, the cylinder is quickly activated, and its output shaft is precisely inserted into the brake wheel, forcing the drive shaft to stop rotating immediately, thereby quickly terminating the punching action and protecting the operator from injury; the safety protection system of this product greatly improves the safety of operation, especially in high-speed, high-pressure punching environments. By taking precautions against potential dangers in advance, this product effectively reduces the incidence of work-related accidents and provides a safer working environment for operators.

[0010] According to some embodiments of the present invention, the detection component is one of a grating sensor, a reflective photoelectric sensor, an inductive proximity switch, a capacitive proximity switch, or an ultrasonic sensor. Different types of sensors are suitable for detecting objects of different materials and environments. The present invention covers a wide range of sensor types, allowing the punch press to maintain a high degree of safety under various operating conditions, whether in dim light, dust pollution, or high-speed operation.

[0011] According to some embodiments of the present invention, a rotating portion is provided at the bottom of the detection assembly, which is used to adjust the relative distance between the detection assembly and the punch head. By adjusting the relative distance between the detection assembly and the punch head, it can adapt to workpieces of different sizes and shapes, ensuring that the detection assembly is always in the optimal detection position, thereby improving the effectiveness and applicability of safety protection.

[0012] According to some embodiments of the present invention, the punching device includes a transmission wheel that is coaxially driven with the brake wheel, with the centers of the transmission wheel and the brake wheel being coaxial. This coaxial design of the transmission wheel and the brake wheel ensures an immediate braking response. When the brake assembly is activated, the brake wheel directly acts on the transmission shaft without the need for additional transmission steps. This significantly shortens the response time from detection to braking, improving the efficiency of safety protection.

[0013] According to some embodiments of the present invention, the brake wheel is a ratchet comprising alternating teeth and grooves, and the output shaft is provided with a pawl that engages with the teeth and grooves. When the pawl engages with the teeth and grooves, the transmission shaft stops rotating. The unique unidirectional motion characteristic of the ratchet ensures that once the transmission shaft stops, it will not rotate in the opposite direction due to external forces, further enhancing safety protection and preventing secondary damage caused by equipment rebound.

[0014] According to some embodiments of the present invention, the brake wheel is provided with multiple friction plates, and the output shaft of the cylinder is provided with friction protrusions that mate with the friction plates. This provides a larger contact area and greater friction, making the braking process faster and more powerful, effectively slowing or even immediately stopping the rotation of the drive shaft, and significantly improving braking efficiency and safety.

[0015] According to some embodiments of the present invention, the safety device further includes an emergency stop button electrically connected to the controller. When the emergency stop button is pressed, the controller activates the cylinder so that the cylinder's output shaft is plugged into the brake wheel. Providing an emergency stop button enables the operator to take swift action in the event of an emergency. Once the emergency stop button is pressed, the controller immediately activates the cylinder, rapidly plugging the output shaft into the brake wheel, thereby stopping the operation of the stamping device in the shortest possible time, effectively avoiding or mitigating the consequences of an accident.

[0016] According to some embodiments of the present invention, the safety device further includes a two-hand switch, which includes two start buttons, one on the left and one on the right side of the emergency stop button. The two-hand switch requires the operator to press both start buttons simultaneously to start the press, effectively preventing accidental start-up due to operator error or single-handed operation, and greatly reducing safety hazards during operation.

[0017] According to some embodiments of the present invention, a protective shield is provided above the start button. The protective shield effectively prevents unintentional or unconscious touches, ensuring that the start button is only pressed when the operator intends to start the device, greatly reducing the risk of safety accidents caused by accidental activation.

[0018] According to some embodiments of the present invention, the safety device further includes an indicator light module electrically connected to the controller and configured to display the operating status of the punching device and the safety device in real time. Through intuitive visual signals, the indicator light module can quickly alert an operator in an emergency, such as when a safety device is triggered or equipment malfunctions, helping the operator to immediately take safety measures and avoid potential injury.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is one of the schematic diagrams of a punch press according to an embodiment of the present utility model;

[0022] Figure 2 This is the second schematic diagram of the punch press according to the embodiment of the present utility model.

[0023] Reference numerals: punch head 100 ; detection assembly 110 ; rotating portion 120 ; brake wheel 130 ; cylinder 140 ; transmission wheel 150 ; transmission shaft 160 . DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0026] In the description of this utility model, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0027] In the description of this utility model, unless otherwise expressly defined, terms such as "set," "install," and "connect" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meanings of these terms in the present utility model based on the specific content of the technical solution. In the description of this utility model, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with such embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of these terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples. In the description of this specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with such embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of these terms does not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0028] Reference Figures 1 to 2 , a punch press, comprising: a base;

[0029] The punching device is arranged on the base, and the punching device includes a punching head 100 and a transmission shaft 160, and the punching head 100 is transmission-connected to the transmission shaft 160;

[0030] The safety device includes a detection component 110 and a brake component. The detection component 110 is set in the feed channel of the punch head 100. The brake component includes a cylinder 140 and a brake wheel 130. The brake wheel 130 is installed on the transmission shaft 160. The cylinder 140 is set corresponding to the brake wheel 130.

[0031] A controller electrically connected to the detection component 110 and the brake component;

[0032] When the punching device is in working state, when the detection component 110 detects that an unexpected object enters the feeding channel, the output shaft of the cylinder 140 is plugged into the brake wheel 130 and stops the transmission shaft 160 from rotating.

[0033] It is understood that the controller can also integrate intelligent controllers and wireless communication modules, allowing remote monitoring and control, as well as predictive maintenance based on data analysis, ensuring that the punch press can provide the highest level of safety and efficiency under any operating conditions.

[0034] By setting a highly sensitive detection component 110 at the feed channel of the punch head 100, the present invention can immediately trigger a safety response the moment an unexpected object (such as a human body part) enters the feed area. This design significantly shortens the time from detection to response, effectively avoiding injury accidents caused by delayed response; when the detection component 110 triggers a safety response, the cylinder 140 is quickly activated, and its output shaft is precisely inserted into the brake wheel 130, forcing the drive shaft 160 to stop rotating immediately, thereby quickly terminating the stamping action and protecting the operator from injury; the safety protection system of this product greatly improves the safety of operation, especially in high-speed, high-pressure stamping environments. By taking precautions against potential dangers in advance, this product effectively reduces the incidence of work-related accidents and provides a safer working environment for operators.

[0035] The detection component 110 is a photoelectric sensor, a reflective photoelectric sensor, an inductive proximity switch, a capacitive proximity switch, or an ultrasonic sensor. Different sensor types are suitable for detecting objects of different materials and environments. The present invention covers a wide range of sensor types, allowing the punch press to maintain a high degree of safety under various operating conditions, whether in dim light, dusty environments, or at high speeds.

[0036] The bottom of the detection assembly 110 is provided with a rotating portion 120, which is used to adjust the relative distance between the detection assembly 110 and the punch head 100. By adjusting the relative distance between the detection assembly 110 and the punch head 100, it can adapt to workpieces of different sizes and shapes, ensuring that the detection assembly 110 is always in the optimal detection position, thereby improving the effectiveness and applicability of safety protection.

[0037] The stamping device includes a transmission wheel 150, which is coaxially driven with the brake wheel 130, with the centers of the transmission wheel 150 and the brake wheel 130 coaxially aligned. This coaxial design ensures instant braking response. When the brake assembly is activated, the brake wheel 130 directly acts on the drive shaft 160, eliminating the need for additional transmission steps. This significantly shortens the response time from detection to braking, improving safety protection efficiency. It will be appreciated that the transmission wheel 150 is connected to the motor's output shaft via a belt, enabling power transmission.

[0038] Brake wheel 130 is a ratchet with alternating teeth and grooves. A pawl is attached to the output shaft, which engages the teeth. When the pawl engages the teeth, drive shaft 160 stops rotating. The ratchet's unique unidirectional motion ensures that once stopped, drive shaft 160 will not reverse due to external forces, further enhancing safety and preventing secondary damage from equipment rebound.

[0039] Braking wheel 130 is equipped with multiple friction plates, and the output shaft of cylinder 140 is provided with friction protrusions that mate with the friction plates. This provides a larger contact area and greater friction, making the braking process faster and more powerful. It can effectively slow or even stop the rotation of drive shaft 160, greatly improving braking efficiency and safety.

[0040] The safety device also includes an emergency stop button, which is electrically connected to the controller. When pressed, the controller activates cylinder 140, causing its output shaft to connect to brake wheel 130. The emergency stop button allows the operator to act quickly in the event of an emergency. Once pressed, the controller immediately activates cylinder 140, rapidly connecting the output shaft to brake wheel 130, halting the press in the shortest possible time, effectively avoiding or mitigating the consequences of an accident.

[0041] The safety device also includes a two-hand switch, which includes two start buttons, one on the left and one on the right of the emergency stop button. The two-hand switch requires the operator to press both start buttons simultaneously to start the press, effectively preventing accidental start-up due to operator error or one-handed operation, greatly reducing safety hazards during operation.

[0042] A safety shield is installed above each start button. This shield effectively prevents unintentional or unconscious touches, ensuring that the start button is only pressed when the operator intends to start the device, significantly reducing the risk of safety accidents caused by accidental start-up.

[0043] The safety device also includes an indicator light module, electrically connected to the controller, that displays the operating status of the punching unit and safety device in real time. Through intuitive visual signals, the indicator light module quickly alerts the operator in emergency situations, such as when a safety device is triggered or equipment malfunctions, helping the operator to take immediate safety measures and avoid potential injuries.

[0044] This embodiment designs a punch press equipped with a safety protection system. The base is used to support the entire punching device and other components. The punching device includes a punch head 100 and a drive shaft 160, wherein the punch head 100 and the drive shaft 160 are connected via a gear or belt drive. The detection component 110, which uses a grating sensor and is located in the feed channel of the punch head 100, is used to monitor in real time whether any unexpected objects (such as the operator's hand) enter the punching area. The brake assembly consists of a cylinder 140 and a brake wheel 130 with a ratchet structure. The brake wheel 130 is mounted on the drive shaft 160. The output shaft of the cylinder 140 is equipped with a stop pawl that adapts to the tooth groove of the brake wheel 130. The controller is electrically connected to the detection component 110 and the brake assembly. When an unexpected object is detected, the cylinder 140 is immediately activated, causing the stop pawl to engage the tooth groove of the brake wheel 130, thereby quickly stopping the rotation of the drive shaft 160. A rotating portion 120 is provided at the bottom of the detection assembly 110 , and an operator can manually adjust the rotating portion 120 to change the relative distance between the detection assembly 110 and the punch head 100 to ensure the optimal detection angle and distance of the detection assembly 110 .

[0045] The transmission wheel 150 and the brake wheel 130 are coaxially driven, and the transmission wheel 150 and the brake wheel 130 share the same transmission shaft 160, which simplifies the power transmission path and ensures that the braking response is fast and effective. The emergency stop button safety device is also equipped with an emergency stop button, which is electrically connected to the controller. When the operator presses the emergency stop button in an emergency, the controller immediately activates the brake assembly to ensure that the equipment stops quickly. The two-hand switch includes two start buttons, which are respectively set on the left and right sides of the emergency stop button. The operator needs to press both buttons at the same time to start the stamping device, which increases the safety of operation. An anti-mistouch baffle is set above the start button to prevent accidental touching of the start button, further improving operational safety. The indicator light module is electrically connected to the controller to display the working status of the stamping device and safety device in real time, such as normal operation, standby, fault or safety alarm, so that the operator can monitor the equipment status.

[0046] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A punching machine, characterized in that: include: A punching device, comprising a punching head and a transmission shaft, wherein the punching head is in driving connection with the transmission shaft; A safety device comprising a detection assembly and a brake assembly, wherein the detection assembly is arranged in the feed channel of the punch head, the brake assembly comprises a cylinder and a brake wheel, the brake wheel is mounted on the transmission shaft, and the cylinder is arranged corresponding to the brake wheel; a controller, electrically connected to the detection component and the brake component; Wherein, when the punching device is in working state, when the detection component detects that an unexpected object enters the feed channel, the output shaft of the cylinder is plugged into the brake wheel and stops the rotation of the transmission shaft.

2. A punching machine according to claim 1, characterized in that: The detection component is one of a grating sensor, a reflective photoelectric sensor, an inductive proximity switch, a capacitive proximity switch or an ultrasonic sensor.

3. A punching machine according to claim 1 or 2, characterized in that: A rotating portion is provided at the bottom of the detection assembly, and the rotating portion is used to adjust the relative distance between the detection assembly and the punching head.

4. A punching machine according to claim 1, characterized in that: The punching device includes a transmission wheel, which is coaxially driven with the brake wheel, and the centers of the transmission wheel and the brake wheel are on the same axis.

5. A punching machine according to claim 1, characterized in that: The brake wheel is a ratchet, which includes alternating teeth and grooves. The output shaft is provided with a stop pawl, which is adapted to the teeth and grooves. When the stop pawl is engaged with the teeth and grooves, the transmission shaft stops rotating.

6. A punching machine according to claim 1, characterized in that: The brake wheel is provided with a plurality of friction plates, and the output shaft of the cylinder is provided with a friction protrusion, and the friction protrusion and the friction plates are adapted to each other.

7. A punching machine according to claim 1, characterized in that: The safety device further includes an emergency stop button, which is electrically connected to the controller. When the emergency stop button is pressed, the controller activates the cylinder so that the output shaft of the cylinder is plugged into the brake wheel.

8. A punching machine according to claim 7, characterized in that: The safety device further comprises a two-hand switch, which comprises two start buttons, and the two start buttons are respectively arranged on the left and right sides of the emergency stop button.

9. A punching machine according to claim 8, characterized in that: Anti-accidental-touch baffles are respectively provided above the start buttons.

10. A punching machine according to claim 1, characterized in that: The safety device further comprises an indicator light module, the indicator light is electrically connected to the controller, and the indicator light module is used to display the working status of the punching device and the safety device in real time.

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