Anti-pinch numerical control bending machine

Abstract

The utility model discloses an anti-pinch numerical control bending machine which comprises a machine body, a bending platform, a bending die and a driving piece are arranged on the machine body, the bending die is arranged above the bending platform, and the driving piece is used for driving the bending die to move up and down in the height direction of the machine body. The bending die is used for jacking a workpiece to bend the workpiece when moving downwards; the hand clamping prevention assembly comprises two hand clamping prevention mechanisms, and the two hand clamping prevention mechanisms are both installed on the machine body and located on the two sides of the bending platform in the length direction; the anti-pinch mechanism comprises a mounting seat, a mounting arm and a detector, the mounting seat is detachably connected to the machine body, the top end of the mounting arm is connected to the mounting seat, the detector is mounted at the bottom end of the mounting arm, and the detector faces the bending platform and sends detection light. The detectors can be arranged on the two sides of the bending platform in the length direction, detection light rays on the two sides are used for simultaneous detection, the driving piece is stopped, and the situation that fingers are clamped is prevented.

Description

Technical Field

[0001] This utility model relates to the field of CNC bending machine technology, and in particular to a CNC bending machine that prevents hand pinching. Background Technology

[0002] Existing bending machines are machines capable of bending thin sheet metal and other workpieces. They work by pressing down on the workpiece using a bending die on a bending platform. During the bending process, the workpiece is typically placed manually on the platform. Jamming is a common problem, requiring manual adjustment. If the bending die presses down during this process, it can cause hand injuries. Furthermore, the bending die can be accidentally activated during loading or unloading, also leading to hand injuries, thus posing a significant safety hazard. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, the present invention provides a CNC bending machine for preventing finger pinching, which can be equipped with detectors on both sides of the bending platform along its length, so as to stop the driving component and prevent finger pinching.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A CNC bending machine with anti-pinch function, comprising,

[0006] The machine body is provided with a bending platform, a bending die and a driving component. The bending die is located above the bending platform. The driving component is used to drive the bending die to move up and down along the height direction of the machine body. The bending die is used to press the workpiece to bend the workpiece when it moves downward.

[0007] The anti-pinch assembly includes two anti-pinch mechanisms, both of which are mounted on the machine body and located on both sides of the bending platform along its length. Each anti-pinch mechanism includes a mounting base, a mounting arm, and a detector. The mounting base is detachably connected to the machine body, the top end of the mounting arm is connected to the mounting base, and the detector is mounted on the bottom end of the mounting arm, facing the bending platform and emitting detection light.

[0008] Furthermore, the bottom end of the mounting arm is provided with an adjustment seat and a detection seat; the adjustment seat is fixed to the bottom end of the mounting arm; the detection seat is connected to the bottom end of the adjustment seat and slides along the width direction of the bending platform; the detector is installed on the side of the detection seat facing the bending platform.

[0009] Furthermore, the bottom end of the adjusting seat is provided with a first adjusting block; the top end of the detection seat is provided with a first adjusting groove; the first adjusting groove extends along the width direction of the bending platform; the first adjusting block is slidably connected within the first adjusting groove.

[0010] Furthermore, a second adjusting block is slidably provided within the first adjusting groove; the second adjusting block is provided with a second adjusting groove, which extends along the width direction of the bending platform, and the first adjusting block is slidably connected within the second adjusting groove.

[0011] Furthermore, the mounting base is provided with a through groove, which extends through the mounting base along the length of the machine body; the top end of the mounting arm slides through the through groove.

[0012] Furthermore, the mounting base is provided with an adjusting screw, one end of which is formed as an adjusting end, and the other end of which is threaded to the mounting base and passes through the through groove, so as to lock or loosen the mounting arm when the adjusting screw rotates.

[0013] Furthermore, the adjustment end is provided with an adjustment handle.

[0014] Furthermore, the mounting base has a mounting plate on its side, and the mounting plate has a strip-shaped hole.

[0015] Furthermore, the detector is a grating sensor.

[0016] Furthermore, the detectors of the two anti-pinch mechanisms are located on the outside of the bending platform.

[0017] In summary, this utility model has the following technical effects:

[0018] During bending operations, if the operator holds the thin sheet workpiece, the detection light emitted by the time detectors on both sides of the bending platform can be blocked by the hand. The detectors can then indicate a detection signal, and the drive unit will stop working based on the detection signal, preventing the bending die from pressing down and pinching the hand during manual operation, thus improving safety. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0021] Figure 3 This invention relates to an anti-pinch hand mechanism.

[0022] The meanings of the reference numerals in the attached drawings are as follows: 10, machine body; 11, bending platform; 12, bending die; 21, mounting base; 211, mounting plate; 212, strip hole; 213, adjusting screw; 14, adjusting handle; 22, mounting arm; 221, first adjusting block; 23, detection seat; 231, second adjusting block. Detailed Implementation

[0023] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] See Figure 1 , Figure 2 as well as Figure 3 This utility model discloses a CNC bending machine with anti-pinch function, including a machine body 10 and an anti-pinch component. The machine body 10 is provided with a bending platform 11, a bending die 12 and a driving component. The bending die 12 is set on the bending platform 11 and the driving component drives the bending die 12 to move in the height direction of the machine body 10. In this way, the bending die 12 can move up and down under the action of the driving component, and after the bending die 12 moves downward, it can press and bend the workpiece on the bending platform 11.

[0027] The specific anti-pinch assembly includes two anti-pinch mechanisms, both of which are mounted on the machine body 10. These two mechanisms can be located on opposite sides of the bending platform 11 along its length. Each anti-pinch mechanism includes a mounting base 21, a mounting arm 22, and a detector. The mounting base 21 is detachably connected to the machine body 10. The top end of the mounting arm 22 is connected to the mounting base 21. The detector is mounted on the bottom end of the mounting arm 22, facing the bending platform 11 and emitting detection light.

[0028] Based on the above structure, when using the anti-pinch CNC bending machine of this utility model, during the bending action, thin plates and other workpieces can be placed on the bending platform 11 of the machine body 10, and then the driving component is started to drive the bending die 12 to move downward. After the bending die 12 moves relative to the workpiece, it can press the thin plate workpiece to perform pressing bending.

[0029] During bending operations, if the operator holds the thin sheet workpiece, the detection light emitted by the detectors on both sides of the bending platform 11 can be blocked by the hand. The detectors will then issue a detection signal, and the drive unit will stop working based on this signal. This prevents the bending die 12 from pressing down and pinching the hand during operation, thus improving safety. Furthermore, since there are detectors on both sides of the bending platform 11 along its length, the detection light rays can be aligned during detection. A hand positioned between the two detectors can block the detection light rays on both sides. This means that as long as the detection light rays on one side are blocked, a detection signal can still be sent, resulting in higher detection accuracy.

[0030] In addition, since the mounting bracket is detachably mounted on the body 10, the mounting bracket can be removed from the body 10 before the detector is installed outside the body 10, and then the mounting bracket can be installed back onto the body 10. This facilitates installation and reduces the chance of accidental activation during the detector installation process.

[0031] Of course, it should be noted that in this embodiment, a controller can also be provided on the body 10. The controller can receive the detection signal sent by the detector and then control the shutdown action of the drive unit.

[0032] Furthermore, in this embodiment, an adjustment seat and a detection seat 23 may be provided at the bottom end of the mounting arm 22. The adjustment seat is fixed to the bottom end of the mounting arm 22, and the detection seat 23 is connected to the bottom end of the adjustment seat. The detection seat 23 can slide relative to the adjustment seat along the width direction of the bending platform 11, and the detector is installed on the side of the detection seat 23 facing the bending platform 11.

[0033] Thus, when installing the detector, it can be mounted on the detection seat 23, which can be slidably engaged with the adjustment seat at the bottom of the mounting arm 22, so that the detector can move back and forth relative to the bending platform 11.

[0034] When the width of the thin plate workpiece is narrow, the handheld position on the thin plate workpiece is relatively rearward relative to the bending platform 11. This allows the sliding detection seat 23 to slide backward relative to the adjustment seat. When the width of the thin plate workpiece is wide, the handheld position on the thin plate workpiece is relatively forward relative to the bending platform 11. This allows the sliding detection seat 23 to slide forward relative to the adjustment seat. This facilitates the adjustment of the detector position according to the width of the thin plate, making it easier to align the detection position.

[0035] More specifically, a first adjusting block 221 is provided at the bottom of the adjusting seat, and a first adjusting groove is provided at the top of the detection seat 23, with the first adjusting groove extending along the width direction of the bending platform 11; the first adjusting block 221 is slidably connected within the first adjusting groove. Thus, when the detection seat 23 and the adjusting seat are slidably installed, the first adjusting block 221 of the adjusting seat is slidably installed into the first adjusting groove of the detection seat 23, and the sliding engagement between the first adjusting block 221 and the first adjusting groove guides the position adjustment of the detection seat 23 in the width direction of the bending platform 11.

[0036] Furthermore, a second adjusting block 231 can be slidably disposed within the first adjusting groove; the second adjusting block 231 is provided with a second adjusting groove, which extends along the width direction of the bending platform 11, and the first adjusting block 221 is slidably connected within the second adjusting groove. In this way, when adjusting the position of the detection seat 23, the detection seat 23 can be adjusted by sliding cooperation between the first adjusting groove and the second adjusting block 231, or by adjusting the position between the first adjusting block 221 and the second adjusting groove, thus making the adjustment method more flexible.

[0037] Furthermore, a through-groove can be provided on the mounting base 21, which extends through the mounting base 21 along the length of the body 10, and the top end of the mounting arm 22 is slidably inserted into the through-groove. In this way, the position of the mounting arm 22 in the height direction of the body 10 can be guided by the sliding engagement between the mounting arm 22 and the through-groove.

[0038] When the thickness of the thin plate workpiece is large, the height of the person's hand pressing on the plate will be high. If the detector is installed at a low position, the thickness of the thin plate workpiece itself may block the detection light, resulting in inaccurate detection results. Conversely, when the thickness of the thin plate workpiece is small, the height of the person's hand pressing on the plate will be low. In this case, if the detector is installed at a high position, it may not be able to detect the person's hand, and there is still a risk of hand being pinched. Therefore, in this application, the position of the detection seat 23 at the bottom of the mounting arm 22 in the height direction of the machine body 10 is adjusted, and the height interval between the detection light of the detector and the end face of the bending platform 11 can be adjusted to adapt to the thickness of the thin plate.

[0039] Furthermore, to prevent the mounting arm 22 from falling under its own weight after being adjusted to the correct height, an adjusting screw 213 can be provided on the mounting base 21. One end of the adjusting screw 213 is formed as an adjusting end, and the other end of the adjusting screw 213 is threaded to the mounting base 21 and passes through the through groove, so as to lock or loosen the mounting arm 22 when the adjusting screw 213 is rotated. Thus, when it is necessary to adjust the height of the mounting arm 22, the adjusting end of the adjusting screw 213 can be rotated, causing the adjusting screw 213 to rotate towards the outside of the through groove, so that the adjusting screw 213 in the through groove can loosen the part of the mounting arm 22 that passes through the through groove. After the mounting arm 22 is adjusted to the correct position, by rotating the adjusting end of the adjusting screw 213, the adjusting screw 213 is rotated towards the inside of the through groove, so that the adjusting screw 213 in the through groove can abut and lock the part of the mounting arm 22 that passes through the through groove.

[0040] Furthermore, an adjustment handle 14 can be provided at the adjustment end, and the adjustment screw 213 can be rotated by rotating the adjustment handle 14, which makes the operation convenient.

[0041] Furthermore, the mounting base 21 has a mounting plate 211 on its side, and the mounting plate 211 has a strip hole 212, so that when assembling the mounting base 21 with the body 10, the mounting plate 211 can be fitted to the side of the body 10.

[0042] Furthermore, the detector is a grating sensor, which can emit grating light and send a detection signal even when the grating light is blocked. Alternatively, the detector can be an existing infrared sensor, which emits infrared light and can also send a detection signal even when the infrared light is blocked. The specific detector structure can be selected according to actual needs.

[0043] Furthermore, the detectors of the two anti-pinch mechanisms are located outside the bending platform 11, that is, the detectors are installed outside the bending platform 11, and the mounting base 21 and mounting arm 22 for installing the detectors are both located outside the bending platform 11, so they will not interfere with the movement of the bending mold 12.

[0044] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A CNC bending machine with anti-pinch function, characterized in that... ,include, The machine body is provided with a bending platform, a bending die and a driving component. The bending die is located above the bending platform. The driving component is used to drive the bending die to move up and down along the height direction of the machine body. The bending die is used to press the workpiece to bend the workpiece when it moves downward. The anti-pinch assembly includes two anti-pinch mechanisms, both of which are mounted on the machine body and located on both sides of the bending platform along its length. Each anti-pinch mechanism includes a mounting base, a mounting arm, and a detector. The mounting base is detachably connected to the machine body, the top end of the mounting arm is connected to the mounting base, and the detector is mounted on the bottom end of the mounting arm. The detector faces the bending platform and emits detection light. The bottom end of the mounting arm is provided with an adjustment seat and a detection seat; the adjustment seat is fixed to the bottom end of the mounting arm; the detection seat is connected to the bottom end of the adjustment seat and slides along the width direction of the bending platform; the detector is installed on the side of the detection seat facing the bending platform; the mounting seat is provided with a through groove, which passes through the mounting seat along the length direction of the machine body; the top end of the mounting arm slides through the through groove.

2. The anti-pinch CNC bending machine according to claim 1, characterized in that, The bottom of the adjusting seat is provided with a first adjusting block; the top of the detection seat is provided with a first adjusting groove; the first adjusting groove extends along the width direction of the bending platform; the first adjusting block is slidably connected in the first adjusting groove.

3. The anti-pinch CNC bending machine according to claim 2, characterized in that, A second adjusting block is slidably disposed within the first adjusting groove; the second adjusting block is provided with a second adjusting groove, which extends along the width direction of the bending platform, and the first adjusting block is slidably connected within the second adjusting groove.

4. The anti-pinch CNC bending machine according to claim 1, characterized in that, The mounting base is provided with an adjusting screw, one end of which is formed as an adjusting end, and the other end of which is threaded to the mounting base and passes through the through groove, so as to lock or loosen the mounting arm when the adjusting screw is rotated.

5. The anti-pinch CNC bending machine according to claim 4, characterized in that, The adjustment end is equipped with an adjustment handle.

6. The anti-pinch CNC bending machine according to any one of claims 1-3, characterized in that, The mounting base has a mounting plate on its side, and the mounting plate has a strip-shaped hole.

7. The anti-pinch CNC bending machine according to any one of claims 1-3, characterized in that, The detector is a grating sensor.

8. The anti-pinch CNC bending machine according to any one of claims 1-3, characterized in that, The detectors of the two anti-pinch mechanisms are located on the outside of the bending platform.

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