An on-line detection device for the die gap of a press

Abstract

The utility model relates to pressure machine mould detection technical field, and disclose a kind of pressure machine mould gap on-line detection device, including device ontology, symmetrically set up horizontal shift bar on the device ontology, equidistant fixedly connected with card set piece on the horizontal shift bar, top frame body is provided on the device ontology top, and the top frame body bottom surface equidistant fixedly connected with stamping piece A, stamping cavity is uniformly provided in the stamping piece A bottom, by overall design, mould gap can be effectively detected, when gap changes, can be timely feedback and adjustment, ensure that mould works under suitable gap, make the size precision of the metal piece pressed effectively guaranteed, reduce the size deviation caused by gap problem, make the metal piece produced can better satisfy design requirement and customer use demand, improve the appearance quality of product, reduce the rate of defective and waste product caused by appearance problem, improve the market competitiveness of product.

Description

Technical Field

[0001] This utility model relates to the field of press mold testing technology, specifically to an online press mold clearance detection device. Background Technology

[0002] In modern manufacturing, using presses to stamp flat metal sheets to create metal parts of various shapes is a common and important processing method, widely used in automobile manufacturing, electronic equipment, and many other fields. Through the combination of presses and molds, metal parts meeting different needs can be produced efficiently and precisely, greatly promoting the development of industrial production.

[0003] However, existing technologies have significant drawbacks in mold clearance detection. Currently, some companies use relatively traditional manual inspection methods, which are not only inefficient and unable to meet the pace of large-scale production, but also the accuracy and reliability of the inspection results largely depend on the experience and skill level of the inspectors, making them prone to large errors. In addition, although some companies have adopted automated inspection equipment, these devices are often single-function and cannot monitor the dynamic changes of mold clearance throughout the stamping process in real time and comprehensively. In actual production, neglecting the precise detection of die clearance often leads to uneven die clearances that exceed reasonable limits. When the die clearance is too large, the stamped metal parts will have obvious flash, insufficient dimensional accuracy, and poor product appearance quality, making it difficult to meet customer requirements. This results in a large number of defective and scrap products, wasting raw materials and significantly increasing production costs. Conversely, when the die clearance is too small, the pressure on the die cutting edge increases dramatically, accelerating wear and often causing die damage. This severely impacts production efficiency, increases equipment maintenance costs, causes press malfunctions, and even endangers the personal safety of operators.

[0004] Therefore, we propose an online detection device for the gap of a press mold to solve the above problems. Utility Model Content

[0005] (I) Technical problem to be solved: In view of the shortcomings of the prior art, this utility model provides an online detection device for the gap of a press mold to solve the problems mentioned in the background art.

[0006] (II) Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: an online detection device for gap of a press mold, comprising a device body, on which transverse strips are symmetrically arranged, and on which locking components are fixedly connected at equal intervals, a top frame is provided on the top of the device body, and stamping components A are fixedly connected at equal intervals on the bottom surface of the top frame, and each stamping component A has a stamping cavity at its bottom.

[0007] Preferably, a stamping part B is fixedly connected at equal intervals to the bottom surface of the device body, and an auxiliary cavity is opened in the stamping part B, and a stamping head is placed in the auxiliary cavity.

[0008] Preferably, a telescopic component is fixedly connected to the bottom surface of the auxiliary cavity, the telescopic end of the telescopic component is fixedly connected to the punch head, a ring is sleeved on the punch head, and air pipe A and air pipe B are fixedly connected to the ring.

[0009] Preferably, infrared receivers are equidistantly arranged on the inner wall of the ring, and a rolling column rolls inside the ring.

[0010] Preferably, the stamped part A has an annular cavity, and infrared emitters are equidistantly arranged in the annular cavity.

[0011] Preferably, both air tube A and air tube B are connected to an external air pump.

[0012] Preferably, the rolling column is covered with an infrared blocking film.

[0013] (III) Beneficial Effects: Compared with the prior art, this utility model provides an online detection device for the gap of a press mold, which has the following beneficial effects: 1. Through its overall design, this utility model can bring the following benefits to the overall operation: Improving dimensional accuracy and appearance quality: This device can detect mold gaps and provide timely feedback and adjustments when gaps change, ensuring that the mold operates at a suitable gap. This effectively guarantees the dimensional accuracy of the pressed metal parts, reduces dimensional deviations caused by gap issues, and allows the produced metal parts to better meet design requirements and customer needs. It also improves the appearance quality of the products, reduces the rate of defective and scrap products caused by appearance problems, and enhances the market competitiveness of the products. Reduce downtime and lower rework rate: By monitoring mold gaps in real time, abnormal gap conditions can be detected in advance, and timely measures can be taken to prevent serious damage to the mold due to unreasonable gaps. This reduces frequent downtime and maintenance time caused by mold failures, ensures production continuity, improves equipment utilization and production efficiency, reduces the probability of defective and scrap products, significantly reduces product rework, and saves the manpower, material resources and time costs required for rework, making the production process smoother and more efficient.

[0014] 2. By adopting the design of a ring and a ring cavity, this utility model can bring the following benefits to the overall operation: Multi-directional data acquisition and cross-verification: The structural design of the ring and cavity allows for detection from multiple angles around the mold using infrared sensors. Changes in mold clearance at different locations can be captured in real time by the sensors, providing more comprehensive clearance data. For example, when uneven mold stress causes asymmetrical changes in clearance, ordinary single-point detection may not be accurate, but multi-directional detection of the ring and cavity can promptly detect these subtle differences, significantly improving detection accuracy. Furthermore, data collected by sensors at multiple locations can be cross-verified and calibrated. When a sensor exhibits abnormal fluctuations, its accuracy can be determined using data from sensors at other locations, avoiding erroneous detection results due to single sensor failure or interference, further ensuring detection precision. Stable product quality meets high-standard production requirements: Precise and comprehensive mold clearance detection ensures that the mold is always in a suitable working condition, thereby making the quality of manufactured metal parts more stable; it reduces quality problems such as product size deviation and appearance defects caused by mold clearance issues, and improves the product qualification rate. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the main body of this utility model; Figure 2 These are cross-sectional structural diagrams of stamped parts A and B in this utility model. Figure 3 This is a cross-sectional view of the stamping part B and the stamping head in this utility model. Figure 4 This is an anatomical diagram of the main structure of this utility model; Figure 5 This is a structural diagram of the annular ring after it has been cut open. Figure 6 The diagram shows the relevant structures of the infrared receiver and infrared transmitter in this utility model.

[0016] In the picture: 1. Device body; 2. Transverse strip; 3. Locking component; 4. Top frame; 5. Stamped part A; 6. Stamping cavity; 7. Stamped part B; 8. Auxiliary cavity; 9. Stamping head; 10. Telescopic component; 11. Ring; 12. Air pipe A; 13. Air pipe B; 14. Infrared receiver; 15. Rolling column; 16. Ring cavity; 17. Infrared transmitter. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Example: Please refer to Figures 1 to 6 As shown: A press die clearance online detection device includes a device body 1, on which transverse strips 2 are symmetrically arranged, and locking components 3 are fixedly connected at equal intervals on the transverse strips 2. A top frame 4 is provided on the top of the device body 1, and stamping parts A5 are fixedly connected at equal intervals on the bottom surface of the top frame 4. Each stamping part A5 has a stamping cavity 6 at its bottom. Stamping parts B7 are fixedly connected at equal intervals on the bottom surface of the device body 1, and auxiliary cavities 8 are formed in the stamping parts B7. Stamping parts B7 are placed in the auxiliary cavities 8. The head 9 and the bottom surface of the auxiliary cavity 8 are fixedly connected to a telescopic component 10. The telescopic end of the telescopic component 10 is fixedly connected to the stamping head 9. A ring 11 is fitted on the stamping head 9. An air tube A12 and an air tube B13 are fixedly connected to the ring 11. Infrared receivers 14 are equidistantly arranged on the inner wall of the ring 11. A rolling column 15 rolls inside the ring 11. The rolling column 15 is covered with an infrared blocking film. An annular cavity 16 is opened inside the stamping component A5. Infrared emitters 17 are equidistantly arranged inside the annular cavity 16.

[0020] in: In the prior art, two transverse strips 2 are provided. During use, the transverse strips 2 can move longitudinally closer and further away through the drive within the device body 1, and can also move laterally. This action can be used by the clamping member 3 to clamp and transfer the position of the metal sheet to be stamped. The drive of the transverse strips 2 can be implemented as an eccentric wheel.

[0021] The clamping component 3 is used to clamp and transfer the metal flat sheet.

[0022] During operation, the stamping head 9 moves into the stamping part A5 with the assistance of the telescopic member 10. At this time, the stamping part A5 and the stamping head 9 can form a closed space, which is part of the stamping cavity 6. This space is the shape of the stamped mold.

[0023] A baffle is fixedly connected inside the ring 11. The baffle is used to divide the flow of gas pumped in by the air tube A12 and the air tube B13.

[0024] Both trachea A12 and trachea B13 are connected to an external air pump.

[0025] The rolling column 15 is covered with an infrared blocking film.

[0026] The rolling column 15 is used to block one of the infrared receivers 14 from receiving the infrared light emitted by the infrared transmitter 17, so as to perform a functional spot check on the infrared transmitter 17 in the annular cavity 16 before the formal test.

[0027] The infrared transmitter 17 is used in conjunction with the infrared receiver 14.

[0028] Working principle: Before testing, the infrared sensor group needs to be functionally tested, that is, whether the infrared receiver 14 and infrared transmitter 17 can work properly. Specifically, gas is pumped into the ring 11 through the air tube A12 / air tube B13, thereby pushing the rolling column 15 to roll in the ring 11. During the rolling, the rolling column 15 will block the infrared receiver 14 in the ring 11. Under the above action, the operator can observe whether the functional status of each pair of infrared receivers 14 and infrared transmitters 17 is qualified according to the device's main controller. Furthermore, during testing, the telescopic component 10 within the auxiliary cavity 8 drives the stamping head 9 to move into the stamping cavity 6 of the stamping part A5. (See attached diagram.) Figure 6 After the movement is complete, the infrared receiver 14 in the ring 11 and the infrared transmitter 17 in the ring cavity 16 will be on the same plane. At this time, the infrared receiver 14 can receive the infrared light emitted by the infrared transmitter 17. Based on the above, the distance / gap between the stamping head 9 and the wall of the stamping cavity 6 of the stamping part A5 can be fed back. If the values ​​fed back by each set of infrared receivers 14 and infrared transmitters 17 are consistent, it means that the device is not loose or there are no other situations affecting the gap change, and it can be put into operation. Through this design, the device can detect the mold gap. When the gap changes, it can be fed back and adjusted in time to ensure that the mold works under the appropriate gap, so that the dimensional accuracy of the pressed metal parts is effectively guaranteed, the dimensional deviation caused by the gap problem is reduced, and the produced metal parts can better meet the design requirements and customer needs, improve the appearance quality of the product, and reduce the defective and scrap rates caused by appearance problems.

[0029] Please refer to the above work process. Figures 1 to 6 .

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for online detection of die clearance in a press, comprising a device body (1), characterized in that: The device body (1) is symmetrically provided with transverse strips (2), and the transverse strips (2) are fixedly connected with locking parts (3) at equal intervals. The device body (1) is provided with a top frame (4), and the bottom surface of the top frame (4) is fixedly connected with stamping parts A (5) at equal intervals. The bottom of the stamping parts A (5) is provided with stamping cavities (6).

2. The online detection device for press mold clearance according to claim 1, characterized in that: The bottom surface of the device body (1) is fixedly connected with stamping parts B (7) at equal intervals. An auxiliary cavity (8) is opened in the stamping part B (7), and a stamping head (9) is placed in the auxiliary cavity (8).

3. The online detection device for press mold clearance according to claim 2, characterized in that: The bottom surface of the auxiliary cavity (8) is fixedly connected to a telescopic component (10). The telescopic end of the telescopic component (10) is fixedly connected to the punch head (9). A ring (11) is sleeved on the punch head (9). Air pipe A (12) and air pipe B (13) are fixedly connected to the ring (11).

4. The online detection device for press mold clearance according to claim 3, characterized in that: Infrared receivers (14) are equidistantly arranged on the inner wall of the ring (11), and rolling columns (15) roll inside the ring (11).

5. The online detection device for press mold clearance according to claim 1, characterized in that: An annular cavity (16) is provided inside the stamped part A (5), and infrared emitters (17) are arranged at equal intervals inside the annular cavity (16).

6. The online detection device for press mold clearance according to claim 3, characterized in that: Both air pipe A (12) and air pipe B (13) are connected to an external air pump.

7. The online detection device for press mold clearance according to claim 4, characterized in that: The rolling column (15) is covered with an infrared blocking film.

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