Feeding mechanism of automatic punch forming machine

Abstract

The utility model relates to the technical field of punch forming, in particular to a feeding mechanism of an automatic punch forming machine, which comprises a feeding part, and the feeding part is slidably mounted on a feeding track and used for clamping a strip to move towards a pressing part; the pressing part is fixedly mounted on the feeding mechanism and is used for fixing the strip when the strip is stamped; the driving device is mounted on the feeding part and is used for providing feeding power; and the displacement sensor is installed on the feeding track through a support, the support is installed on the feeding track in a sliding mode, and the displacement sensor is provided with a switch and is connected with a CNC control system of the whole equipment. By arranging the displacement sensor for monitoring the feeding distance of the strip in real time, monitoring of the feeding distance of the strip is achieved, so that the machining precision of products is improved, and the defective rate is effectively reduced.

Description

Technical Field

[0001] The present application relates to the field of stamping and forming technology, and in particular to a feeding mechanism of an automatic stamping and forming machine. Background Art

[0002] Stamping refers to a processing and forming method in which a press and a die are used to apply external force to plates, strips, pipes and profiles to cause them to undergo plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. During the hot stamping and bending of the steel strips, the material is continuously fed through the steel strip coil. During processing, it is necessary to place it on the stamping mechanism and the bending mechanism in steps, first stamping and then bending. The transmission of the steel strip needs to be stopped during both stamping and bending. The continuous feeding method cannot meet the working requirements of the automatic stamping and bending machine, and it is easy to cause the accumulation of steel strips, affecting the quality of the resulting forming. Then the traditional manual feeding and stamping method requires a lot of labor and is time-consuming and laborious.

[0003] Chinese patent CN118321438A discloses an automatic stamping and bending forming machine, wherein the feeding mechanism comprises a material guide, a feeding mechanism, and a pressing mechanism sequentially mounted on a mounting plate, the feeding mechanism and the pressing mechanism being driven by a driving mechanism on the back of the mounting plate; the material guide comprises upper and lower rollers and side rollers; the feeding mechanism comprises a base and a clamping feeding block, with limit blocks mounted at both ends of the base; the pressing mechanism comprises a pressing table and a pressing rod; the driving mechanism comprises a sun gear driven by a motor and a motor output shaft, the sun gear driving a plurality of satellite gears around the sun gear, which rotate coaxially with the feeding eccentric and the rocker eccentric respectively; the stamping mechanism comprises a die table and a stamping assembly, the die table having a debris collection chamber at its bottom; the forming mechanism comprises a forming back plate and a plurality of bending arms, the forming back plate having a processing seat and a pushing mechanism at its center. This application uses a program to synchronously control the feeding, stamping, and bending of the equipment, thereby improving the quality of stamped and formed products, reducing labor costs, and increasing output efficiency.

[0004] However, in the automatic stamping and bending forming machine of the prior art, the intermittent feeding of raw materials is achieved by the intermittent reciprocating motion of the clamping and feeding mechanism. However, after long-term use, mechanical wear and vibration may cause feeding errors of the clamping and feeding mechanism, thereby affecting the processing accuracy of the product, producing defective products and causing waste of raw materials. Utility Model Content

[0005] In order to overcome the errors existing in the prior art, the present application provides a feeding mechanism for an automatic stamping machine.

[0006] The feeding mechanism of an automatic stamping machine provided in this application adopts the following technical solution:

[0007] A feeding mechanism of an automatic stamping forming machine includes a feeding part, which is slidably mounted on a feeding track and is used to clamp a strip and move it toward a pressing part; a pressing part, which is fixedly mounted on the feeding mechanism and is used to fix the strip when stamping the strip; a driving device, which is mounted on the feeding part and is used to provide feeding power; a displacement sensor, which is mounted on the feeding track through a bracket, and the bracket is slidably mounted on the feeding track, and the displacement sensor is provided with a switch and is connected to the CNC control system of the entire equipment.

[0008] By adopting the above technical solution, the feeding mechanism clamps the strip material through the feeding part and makes reciprocating motion on the feeding track. The feeding part first clamps the strip material and moves toward the pressing part under the action of the driving device. After moving to the specified position, the feeding part releases and immediately returns to the starting position. At this time, the pressing part presses the strip material and cooperates with the subsequent stamping mechanism to prevent the strip material from slipping. A displacement sensor is installed on the bracket installed on the feeding track. After the feeding mechanism starts working, the switch can be turned on. At this time, under the control of the CNC control system, the displacement sensor can monitor the distance that the feeding part clamps the strip material and makes reciprocating motion, thereby monitoring the feeding distance of the strip material in real time. If the measured displacement data exceeds the preset range, it means that the feeding length exceeds the range. At this time, an alarm will be issued through the CNC control system, and under the control of the CNC control system, the workpiece processed by the feeding length will be classified into a defective product storage box through another belt when unloading.

[0009] Preferably, the feed track is provided with a plurality of groups of evenly distributed mounting holes, wherein the bottom of the bracket adopts a slider adapted to the feed track, and the slider is provided with locking bolts for fixing with the mounting holes.

[0010] By adopting the above technical solution, the bracket installed on the feeding track can adjust the feeding distance of the feeding part according to the different strip lengths required by the product, so the position of the bracket for installing the displacement sensor also needs to be adjusted accordingly. After the slider at the bottom of the bracket is moved to the corresponding position on the feeding track, it is fixedly connected to the mounting hole on the feeding track through the locking bolt on the slider.

[0011] Preferably, the bracket adopts a door-type structure, including support rods on both sides and a mounting plate on the top, wherein a displacement sensor is installed on the side of the mounting plate facing the feeding part, and a space for the strip to pass through is opened at the bottom of the mounting plate.

[0012] By adopting the above technical solution, the bracket adopts a door-type structure to facilitate the passage of the strip. The bracket supports the mounting plate for installing the displacement sensor through the support rods on both sides, and the sensor is installed on the side facing the feeding part, which can accurately monitor the displacement of the feeding part.

[0013] Preferably, a CCD camera is also installed at the bottom of the mounting plate, wherein the CCD camera is connected to the mounting plate via a lifting rod, and the top of the lifting rod can be moved and adjusted along the length direction of the bottom of the mounting plate.

[0014] By adopting the above technical solution, the CCD camera installed at the bottom of the mounting plate adjusts the position of the lifting rod according to the width and thickness of the strip materials to perform visual identification of the strip with the CCD camera. It can identify defects on the surface of the strip and abnormalities in the position of the strip, thereby effectively reducing the defective rate of the product.

[0015] Preferably, fill light strips are installed on the inner sides of the support rods of the bracket.

[0016] By adopting the above technical solution, the fill light waiting inside the support rod can improve the recognition accuracy of the CCD camera.

[0017] Preferably, the driving device includes a servo motor and a transmission mechanism at its output end, and the transmission mechanism is a screw transmission mechanism, a gear transmission mechanism or a rocker transmission mechanism.

[0018] Preferably, the driving device is located at the bottom of the feeding part, and buffer parts are respectively installed on the fixing frames on both sides of the bottom of the feeding part, and the buffer parts are equipped with alarm buttons.

[0019] By adopting the above technical solution, the buffer parts arranged on the fixed frames on both sides of the feeding part can buffer the impact of the feeding part when an abnormality occurs in the feeding part, and pressing the alarm button during buffering can activate the alarm to prompt the operator.

[0020] Preferably, the displacement sensor is an inductive displacement sensor, a capacitive displacement sensor or a photoelectric displacement sensor.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. This application installs a displacement sensor on a bracket mounted on the feeding track. After the feeding mechanism starts working, the switch can be turned on. At this time, under the control of the CNC control system, the displacement sensor can monitor the reciprocating distance of the feeding part clamping the strip, thereby monitoring the feeding distance of the strip in real time, thereby realizing the monitoring of the strip conveying distance and improving the processing accuracy of the product;

[0023] 2. In this application, the values detected by the sensor are displayed on the display in real time. The operator can observe the conveying distance of the strip according to the data displayed on the display, thereby more intuitively monitoring the working status of the feeding mechanism, further ensuring the processing accuracy of the product;

[0024] 3. In this application, the displacement sensor is mounted on an adjustable bracket. The position of the bracket on which the displacement sensor is mounted can be adjusted accordingly to suit the feeding distance of the feeding section required for different products, thereby meeting the monitoring requirements for strips of different lengths.

[0025] 4. The displacement sensor in this application monitors the distance that the feeding part clamps the strip and performs reciprocating motion under the CNC control system, and the monitored data can be stored on the system to achieve long-term analysis and supervision. The factors affecting the feeding accuracy can be summarized and summarized, so that corresponding improvements can be made to improve the processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the feeding mechanism of an automatic stamping and forming machine;

[0027] Figure 2 It is a partial structural diagram of the feeding mechanism of an automatic stamping and forming machine;

[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0029] Explanation of the accompanying drawings: 1. Feeding part; 11. Fixing frame; 111. Buffer part; 112. Alarm button; 2. Pressing part; 3. Driving device; 31. Servo motor; 32. Transmission mechanism; 4. Displacement sensor; 41. Switch; 5. Bracket; 51. Slider; 511. Locking bolt; 52. Support rod; 53. Mounting plate; 531. CCD camera; 532. Lifting rod; 6. Feeding track; 61. Mounting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The embodiment of the present application discloses a feeding mechanism of an automatic stamping machine.

[0032] Reference Figure 1 、 Figure 2 and Figure 3A feeding mechanism for an automatic stamping machine comprises a feeding section 1 slidably mounted on a feeding track 6, used to clamp the strip and move it toward the pressing section 2; a pressing section 2 fixedly mounted on the feeding mechanism to secure the strip during stamping; a driving device 3 mounted on the feeding section 1 to provide feeding power; a photoelectric displacement sensor 4 mounted on the feeding track 6 via a bracket 5, which is also slidably mounted on the feeding track 6; a switch 41 is provided on the displacement sensor 4 and connected to the CNC control system of the entire device. In the feeding mechanism, the feeding section 1 clamps the strip and reciprocates on the feeding track 6. The feeding section 1 first clamps the strip and moves toward the pressing section 2 under the action of the driving device 3. After reaching the designated position, the feeding section 1 is released and immediately returns to the starting position. The pressing section 2 now presses the strip and cooperates with the subsequent stamping mechanism to prevent the strip from slipping. Both the feeding section 1 and the pressing section 2 use motors to drive the rotation of eccentric wheels to achieve compression and release of the strip. A displacement sensor 4 is installed on the bracket 5 installed on the feeding track 6. After the feeding mechanism starts working, the switch 41 can be turned on. At this time, under the control of the CNC control system, the displacement sensor 4 can monitor the distance that the feeding part 1 clamps the strip and makes reciprocating motion, thereby monitoring the feeding distance of the strip in real time. If the measured displacement data exceeds the preset range, it means that the feeding length exceeds the range. At this time, an alarm will be issued through the CNC control system, and under the control of the CNC control system, the workpiece processed by the feeding length will be classified into a defective storage box through another belt when unloading, and the strip feeding distance data will be displayed in real time on an independent display on the equipment. The operator can observe the conveying distance of the strip according to the data displayed on the display, thereby more intuitively monitoring the working status of the feeding mechanism and effectively improving the processing accuracy of the product.

[0033] Reference Figure 1 and Figure 2 The feed track 6 is provided with a plurality of evenly distributed mounting holes 61. The bottom of the bracket 5 is provided with a slider 51 adapted to the feed track 6, and the slider 51 is provided with a locking bolt 511 for securing the slider to the mounting holes 61. The bracket 5 mounted on the feed track 6 can adjust the feeding distance of the feed section 1 according to the required strip length of the product, thereby also requiring the corresponding adjustment of the position of the bracket 5 for mounting the displacement sensor 4. After the slider 51 at the bottom of the bracket 5 is moved to the corresponding position on the feed track 6, it is fixedly connected to the mounting hole 61 on the feed track 6 via the locking bolt on the slider 51.

[0034] Reference Figure 1 and Figure 2The bracket 5 adopts a gate-like structure, including support rods 52 on both sides and a mounting plate 53 on the top. The displacement sensor 4 is mounted on the side of the mounting plate 53 facing the feed section 1, and a space is opened at the bottom of the mounting plate 53 for the strip to pass through. The bracket 5 adopts a gate-like structure to facilitate the passage of the strip. The bracket 5 supports the mounting plate 53 for mounting the displacement sensor 4 through the support rods 52 on both sides. The sensor is installed on the side facing the feed section 1, which can accurately monitor the displacement of the feed section 1.

[0035] Reference Figure 1 and Figure 2 A CCD camera 531 is also installed at the bottom of the mounting plate 53. The CCD camera 531 is connected to the mounting plate 53 via a lifting rod 532, and the top of the lifting rod 532 can be moved and adjusted along the length of the bottom of the mounting plate 53. The CCD camera 531 installed at the bottom of the mounting plate 53 adjusts the position of the lifting rod 532 according to the width and thickness of the strip material to perform visual recognition of the strip with the CCD camera 531. It can identify surface defects and abnormalities in the strip position, thereby effectively reducing the defective rate of the product. The inner side of the support rod 52 of the bracket 5 is installed with a fill light strip. The fill light on the inner side of the support rod 52 can improve the recognition accuracy of the CCD camera 531.

[0036] Reference Figure 1 and Figure 2 The drive device 3 includes a servo motor 31 and a gear transmission mechanism 32 at its output end. The drive device 3 is located at the bottom of the feed section 1. Buffers 111 are mounted on the fixed frames 11 on either side of the bottom of the feed section 1. Each buffer 111 has an alarm button 112 built into it. The buffers 111, mounted on the fixed frames 11 on either side of the feed section 1, can cushion impacts to the feed section 1 when an abnormality occurs. While providing cushioning, pressing the alarm button 112 activates an alarm to alert the operator.

[0037] Working principle: The feeding part 1 is slidably mounted on the feeding track 6, and is used to clamp the strip and move it toward the pressing part 2. A buffer part 111 with an alarm button 112 inside is provided on the fixed frame 11 on both sides of the bottom of the feeding part 1. When an abnormality occurs in the feeding part 1, it can buffer the impact of the feeding part 1 and touch the alarm button 112 to alarm; the pressing part 2 is fixedly mounted on the feeding mechanism, and is used to fix the strip when stamping the strip; the driving device 3 is mounted on the bottom of the feeding part 1, and the driving device 3 drives the gear transmission mechanism 32 through the servo motor 31. In the gear transmission mechanism 32, the gear on the output shaft of the servo motor 31 cooperates with the rack in the feeding direction of the strip, and the feeding is realized by the forward and reverse movement of the gear. The reciprocating motion of part 1; the door-type bracket 5 installed on the sensor is slidably installed on the feeding track 6. The bottom of the bracket 5 is used for the passage of the strip, and the position of the bracket 5 is adjusted according to the different strip lengths corresponding to different products. The locking bolt 511 on the slider 51 at the bottom of the bracket 5 is fixed with the mounting hole 61 on the feeding track 6. The displacement sensor 4 is started by the switch 41 provided on the displacement sensor 4 and the feeding distance of the strip of the feeding part 1 is monitored in real time under the control of the CNC control system. The fill light strips on the inner side of the support rods 52 on both sides of the bracket 5 illuminate the strip passing through the bracket 5, and the position of the CCD camera 531 on the top mounting plate 53 is adjusted by the lifting rod 532 to visually monitor the strip.

[0038] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A feeding mechanism for an automatic stamping machine, characterized in that: The invention comprises a feeding part (1), wherein the feeding part (1) is slidably mounted on a feeding track (6) and is used for clamping the strip material and moving it toward the pressing part (2); A pressing portion (2), the pressing portion (2) being fixedly mounted on the feeding mechanism and used for fixing the strip when the strip is being stamped; A driving device (3), the driving device (3) being mounted on the feeding portion (1) and being used to provide feeding power; A displacement sensor (4) is mounted on a feeding track (6) via a bracket (5), and the bracket (5) is slidably mounted on the feeding track (6). The displacement sensor (4) is provided with a switch (41) and is connected to a CNC control system of the entire device.

2. The feeding mechanism of the automatic stamping machine according to claim 1, characterized in that: The feeding track (6) is provided with a plurality of evenly distributed mounting holes (61), wherein the bottom of the bracket (5) adopts a slider (51) adapted to the feeding track (6), and the slider (51) is provided with a locking bolt (511) for fixing with the mounting hole (61).

3. The feeding mechanism of the automatic stamping machine according to claim 2, characterized in that: The bracket (5) adopts a door-shaped structure, comprising support rods (52) on both sides and a mounting plate (53) on the top, wherein a displacement sensor (4) is mounted on the side of the mounting plate (53) facing the feeding portion (1), and a space for the strip to pass through is opened at the bottom of the mounting plate (53).

4. The feeding mechanism of the automatic stamping machine according to claim 3, characterized in that: A CCD camera (531) is also installed at the bottom of the mounting plate (53), wherein the CCD camera (531) is connected to the mounting plate (53) via a lifting rod (532), and the top of the lifting rod (532) can be moved and adjusted along the length direction of the bottom of the mounting plate (53).

5. The feeding mechanism of the automatic stamping machine according to claim 4, characterized in that: Filling light strips are installed on the inner sides of the support rods (52) of the bracket (5).

6. The feeding mechanism of the automatic stamping machine according to claim 1, characterized in that: The driving device (3) comprises a servo motor (31) and a transmission mechanism (32) at its output end, wherein the transmission mechanism (32) is a screw transmission mechanism (32), a gear transmission mechanism (32) or a rocker transmission mechanism (32).

7. The feeding mechanism of the automatic stamping machine according to claim 6, characterized in that: The driving device (3) is located at the bottom of the feeding part (1), and buffer parts (111) are respectively installed on the fixing frames (11) on both sides of the bottom of the feeding part (1), and the buffer parts (111) are built with alarm buttons (112).

8. The feeding mechanism of the automatic stamping machine according to claim 1, characterized in that: The displacement sensor (4) is one of an inductive displacement sensor (4), a capacitive displacement sensor (4), or a photoelectric displacement sensor (4).

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