Workpiece placing and arranging device and press machine applying same

Abstract

The utility model relates to a workpiece placing and arranging device and a press machine using the same. The workpiece placing and tidying device comprises a limiting piece used for limiting the placing position of a workpiece on an operation table of equipment, a sensor used for detecting whether the workpiece is placed in place at the placing position or not and outputting a corresponding induction signal, and a detection circuit used for outputting an in-place signal when the workpiece is placed in place at the placing position based on the induction signal. The sensor is arranged on the side portion of the limiting piece, and the detection circuit is connected with the sensor and a control system of the device. The press machine comprises an operation table, a control system and a crimping assembly which is arranged above the operation table and controlled by the control system, and further comprises the workpiece placing and arranging device. According to the utility model, the workpiece can be placed in place, the workpiece is prevented from being damaged in the machining process, and the personal safety of equipment operators is guaranteed.

Description

Technical Field

[0001] The utility model relates to a workpiece placing and aligning device used in workpiece processing equipment, and a press applying the workpiece placing and aligning device. Background Art

[0002] Before processing a workpiece, it is necessary to place the workpiece at a specified position on the operating table of the processing equipment. Deviation in the placement of the workpiece will have an adverse effect on the workpiece processing.

[0003] For example, a press is a versatile, compact piece of workpiece processing equipment widely used in processes such as cutting, punching, blanking, bending, riveting, and forming. When placing the workpiece to be pressed, proper alignment, such as front-to-back, left-to-right, and horizontal alignment, is crucial. If the workpiece is misaligned, it can be crushed or ejected, potentially causing damage or personal injury.

[0004] Therefore, it is necessary to design a device for regulating the placement of workpieces for workpiece processing equipment. Summary of the Invention

[0005] The utility model aims to provide a workpiece placement aligning device which can ensure that the workpiece is placed in place and avoid the harm caused by deviation of the workpiece placement.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A workpiece placement and aligning device is provided in an equipment for processing workpieces, the workpiece placement and aligning device includes a limit member for limiting the placement position of the workpiece on the operating table of the equipment, a sensor for detecting whether the workpiece is placed in the placement position and outputting a corresponding sensing signal, and a detection circuit for outputting a position signal when the workpiece is placed in the placement position based on the sensing signal. The sensor is provided on the side of the limit member, and the detection circuit is respectively connected to the sensor and the control system of the equipment.

[0008] The limiting member is provided with a limiting groove, and the inner side surface of the limiting groove matches the local surface of the workpiece.

[0009] The sensor is a proximity switch.

[0010] The detection circuit includes a switching power supply and an intermediate relay. The input side of the switching power supply is connected to an external power supply. The sensor is connected in series with the coil of the intermediate relay and then connected to the output side of the switching power supply. The two ends of the first group of normally open nodes of the intermediate relay are respectively connected to the output side of the switching power supply and the input point of the control system.

[0011] The detection circuit also includes a workpiece in place indicator light. The second group of normally open nodes of the intermediate relay is connected in series with the workpiece in place indicator light and then connected to the output side of the switching power supply.

[0012] The detection circuit further includes a main circuit breaker, which is arranged on a main power line derived from the external power supply, and the switching power supply is connected downstream of the main circuit breaker.

[0013] The detection circuit further includes a branch circuit breaker. A branch line extending from the main power line is provided downstream of the main circuit breaker. The branch circuit breaker is provided on the branch line, and the switching power supply is connected to the branch line.

[0014] The control system is connected to the external power supply.

[0015] A bracket is provided on the side of the limiting component, and the sensor is installed on the bracket.

[0016] The utility model also provides a press machine that can ensure that the workpiece is placed in place, avoid the workpiece from being deviated and crushed, and ensure the personal safety of the operator. The solution is:

[0017] A press comprises an operating table, a control system, a crimping assembly arranged above the operating table and controlled by the control system, and the aforementioned workpiece placement and regularization device.

[0018] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the present invention can ensure that the workpiece is placed in place, avoid damage to the workpiece during processing, and ensure the personal safety of equipment operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Attachment Figure 1 This is a schematic diagram of the main structure of the press of the present invention.

[0020] Attachment Figure 2 It is a schematic side view of the structure of the press of the present invention.

[0021] Attachment Figure 3 This is a structural schematic diagram of a workpiece placement and regularization device in a press machine according to the present invention.

[0022] Attachment Figure 4 It is a structural schematic diagram of the press of the present invention using a workpiece placement and regularization device to place the workpiece in place and perform crimping.

[0023] Attachment Figure 5 This is a circuit diagram of the workpiece placement and aligning device of the present invention.

[0024] In the above figures: 1. Sensor; 2. Bracket; 3. Limiting part; 4. Operating table; 5. Main circuit breaker; 6. First branch circuit breaker; 7. Switching power supply; 8. Second branch circuit breaker; 9. Control system; 10. First group of normally open nodes of intermediate relay KA1; 11. Coil of intermediate relay KA1; 12. Second group of normally open nodes of intermediate relay KA1; 13. Workpiece in place indicator light; 14. Workpiece; 15. Crimping assembly; 16. Control cabinet. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0026] Example 1: As shown in the attached Figure 1 To the attached Figure 4 As shown, a press for crimping a workpiece 14 includes an operating table 4, a control system 9, and a crimping assembly 15. The control system 9 is located in a control cabinet 16 on the side of the operating table 4 and includes components such as a PLC. The crimping assembly 15 is located above the operating table 4 and is electrically connected to the control system 9. The control system 9 controls the movement of the crimping assembly 15 to crimp the workpiece 14 placed on the operating table 4.

[0027] The press also includes a workpiece placement and regularization device, which includes a limiter 3, a sensor 1, and a detection circuit.

[0028] The limiting member 3 is provided on the operating table 4 and is used to limit the placement of the workpiece 14 on the operating table 4. The limiting member 3 is a protrusion provided on the operating table 4, and a limiting groove is provided on the upper side thereof. The inner side surface of the limiting groove matches the shape of a partial surface, i.e., a partial side surface, of the workpiece 14. In this embodiment, the workpiece 14 is cylindrical in shape, and the cross-section of the limiting groove is semicircular, which can match and fit with one side of the outer side surface of the workpiece 14, thereby limiting the placement of the workpiece 14. The limiting member 3 can be fixedly mounted on the operating table 4, or it can be detachably mounted on the operating table 4 to facilitate replacement of the limiting member 3 suitable for different workpieces 14.

[0029] The sensor 1 is arranged on the side of the limit member 3, and is used to detect whether the workpiece 14 is placed in place and output a corresponding sensing signal, that is, when the workpiece 14 is placed in place, the sensor 1 outputs an electrical signal, otherwise no signal is output. A bracket 2 can be set on the operating table 4, the bracket 2 is located on the side of the limit block, and the sensor 1 is installed on the bracket 2. The sensor 1 can be installed on the bracket 2 through a guide rail mechanism, so that its height position can be freely adjusted according to different workpieces 14. In this embodiment, the sensor 1 adopts a proximity switch, which is arranged in the same vertical plane as the bottom of the upper limit groove of the limit member 3. The monitoring distance of the proximity switch used is 4mm, and the error is within the range of 1mm, which meets the positioning requirements in the front and rear directions. The bracket 2 is made of galvanized flat iron.

[0030] The detection circuit is located in a suitable location within the press, such as within the control cabinet 16. The detection circuit is connected to the sensor 1 and the control system 9 of the press. The detection circuit receives the sensing signal from the sensor 1 and, based on the sensing signal, outputs a position-in-place signal to the control system 9 when the workpiece 14 is properly positioned.

[0031] As attached Figure 5As shown, the detection circuit mainly includes a switching power supply 7 and an intermediate relay KA1. The input side of the switching power supply 7 is connected to an external power supply, and its output side includes an output positive pole and an output negative pole, capable of outputting a 24V DC power signal. The intermediate relay KA1 includes a coil 11 and several groups of normally open nodes. The sensor 1 is connected in series with the coil 11 of the intermediate relay KA1 and then connected to the output side of the switching power supply 7. In this embodiment, the input side of the sensor 1 is respectively connected to the output positive pole and output negative pole of the switching power supply 7, the output side of the sensor 1 is connected to one end of the coil 11 of the intermediate relay KA1, and the other end of the coil 11 of the intermediate relay KA1 is connected to the output negative pole of the switching power supply 7. One end of the first group of normally open nodes 10 of the intermediate relay KA1 is connected to the output side of the switching power supply 7, that is, the output positive pole, and the other end is connected to the input point of the control system 9. The detection circuit also includes a workpiece arrival indicator light 13. The second set of normally open nodes 12 of the intermediate relay KA1 is connected in series with the workpiece arrival indicator light 13 and then connected to the output side of the switching power supply 7. That is, one end of the second set of normally open nodes 12 of the intermediate relay KA1 is connected to the positive output terminal of the switching power supply 7, and the other end is connected to one end of the workpiece arrival indicator light 13, while the other end of the workpiece arrival indicator light 13 is connected to the negative output terminal of the switching power supply 7. In addition, the detection circuit also includes a main circuit breaker 5, a first branch circuit breaker 6, and a second branch circuit breaker 8. The external power supply leads to a main power line, and the main circuit breaker 5 is arranged on this main power line, and the switching power supply 7 is connected downstream of the main circuit breaker 5. A branch line is provided downstream of the main circuit breaker 5, which leads from the main power line. The first branch circuit breaker 6 is arranged on the branch line, and the switching power supply 7 is connected to the branch line downstream of the first branch circuit breaker 6. The control system 9 is also connected to an external power supply, that is, another branch line led from the main power line is set downstream of the main circuit breaker 5, and a second branch circuit breaker 8 is set on the branch line, and then the control system 9 is connected to the branch line downstream of the second branch circuit breaker 8.

[0032] The working principle of the above-mentioned workpiece placement and aligning device is as follows: the workpiece 14 is placed horizontally under the left and right positioning restrictions of the limiter 3 until the workpiece 14 is also placed in place in the front and rear directions by the restrictions of the limiter 3. The sensor 1 is used to sense whether the workpiece 14 is placed in place within the limiter 3. If it is placed in place, the sensor 1 outputs an induction signal, so that the coil 11 of the intermediate relay KA1 is energized, and then the two groups of normally open nodes of the intermediate relay KA1 are closed. When the first group of normally open nodes 10 of the intermediate relay KA1 is closed, the input point of the control system 9 obtains a signal indicating that the workpiece 14 is in place. At this time, the control system 9 can control the press to perform a crimping operation to ensure that the workpiece 14 will not be crushed and ejected due to placement deviation, while protecting the personal safety of the operator. At the same time, when the second group of normally open nodes 12 of the intermediate relay KA1 is closed, the workpiece in place indicator light 13 lights up to prompt the operator.

[0033] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A workpiece placement and regularization device, provided in a device for processing workpieces, characterized in that: The workpiece placement and aligning device includes a limiter for limiting the placement position of the workpiece on the operating table of the equipment, a sensor for detecting whether the workpiece is placed in place at the placement position and outputting a corresponding sensing signal, and a detection circuit that outputs a position signal when the workpiece is placed in place at the placement position based on the sensing signal. The sensor is arranged on the side of the limiter, and the detection circuit is respectively connected to the sensor and the control system of the equipment.

2. The workpiece placement and aligning device according to claim 1, characterized in that: The limiting member is provided with a limiting groove, and the inner side surface of the limiting groove matches the local surface of the workpiece.

3. The workpiece placement and aligning device according to claim 1, characterized in that: The sensor is a proximity switch.

4. The workpiece placement and aligning device according to claim 1, characterized in that: The detection circuit includes a switching power supply and an intermediate relay. The input side of the switching power supply is connected to an external power supply. The sensor is connected in series with the coil of the intermediate relay and then connected to the output side of the switching power supply. The two ends of the first group of normally open nodes of the intermediate relay are respectively connected to the output side of the switching power supply and the input point of the control system.

5. The workpiece placement and aligning device according to claim 4, characterized in that: The detection circuit also includes a workpiece in place indicator light. The second group of normally open nodes of the intermediate relay is connected in series with the workpiece in place indicator light and then connected to the output side of the switching power supply.

6. The workpiece placement and aligning device according to claim 4, characterized in that: The detection circuit further includes a main circuit breaker, which is arranged on a main power line derived from the external power supply, and the switching power supply is connected downstream of the main circuit breaker.

7. The workpiece placement and aligning device according to claim 6, characterized in that: The detection circuit further includes a branch circuit breaker. A branch line extending from the main power line is provided downstream of the main circuit breaker. The branch circuit breaker is provided on the branch line, and the switching power supply is connected to the branch line.

8. The workpiece placement and aligning device according to claim 4, characterized in that: The control system is connected to the external power supply.

9. The workpiece placement and aligning device according to claim 1, characterized in that: A bracket is provided on the side of the limiting component, and the sensor is installed on the bracket.

10. A press comprising an operating table, a control system, and a crimping assembly disposed above the operating table and controlled by the control system, characterized in that: The press further comprises a workpiece placement and aligning device as claimed in any one of claims 1 to 9.

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