Length measuring device for metal lining plate processing

Abstract

This utility model discloses a length measuring device for metal liner processing, relating to the field of metal liner processing. It addresses the problem in existing technologies where, when the measured dimension deviates significantly from the target dimension, the measurement error cannot be indicated, resulting in a lack of flexibility and convenience. An error indication block is provided on the upper end of one side of the inner frame, and a first contact switch is installed inside the error indication block. An inner sliding groove is formed in the middle of the upper surface of the lower sliding block, and an inner fixing rod is fixed inside the inner sliding groove. A pressing sliding block is slidably connected to the inner sliding groove along the outside of the inner fixing rod. A pressure spring is fixed between the outer wall of the inner sliding groove and the pressing sliding block along the outside of the inner fixing rod. A second contact switch is installed on the outside of the pressing sliding block. A warning structure is installed on the outside of the outer frame, and the warning structure, the second contact switch, and the first contact switch form a series circuit.

Description

Technical Field

[0001] This utility model relates to the field of metal liner processing, specifically a length measuring device for metal liner processing. Background Technology

[0002] In the field of metal processing, metal liners, as key components, are widely used in machinery manufacturing, aerospace, energy equipment, and the automotive industry. Their machining accuracy directly affects the operational stability, service life, and safety of equipment. The machining process of metal liners typically includes cutting, stamping, welding, heat treatment, and surface treatment. Among these, precise control of the length dimension is the core element ensuring the compatibility of the liner with other components.

[0003] Mechanical measuring devices achieve length positioning through fixed gauge blocks, slide rail mechanisms, or lever transmission structures. For example, Chinese authorized patent CN 108344367 (A Length Measuring Device) includes: a base plate, a rack, a guide rail, a slider, a transmission plate, a drive unit, and a measuring unit; the rack and the guide rail are disposed on the base plate, and the rack is parallel to the guide rail; the slider is disposed on the guide rail; the transmission plate is disposed on the slider; the measuring unit is mounted on the transmission plate and includes: a cylinder, a push plate, and a sensing plate; the cylinder drives the push plate to move; the sensing plate limits the movement of the workpiece being measured; the drive unit cooperates with the rack to drive the measuring unit to move along the guide rail.

[0004] Although the aforementioned existing technology has the function of measuring the length of a workpiece, it cannot provide a prompt when the measured size has a large error with the target size, making it inflexible and inconvenient. Utility Model Content

[0005] The purpose of this invention is to provide a length measuring device for metal lining plate processing, so as to solve the problem mentioned in the background art that when the error between the measured size and the target size is large, it is impossible to indicate the measurement error, which is not flexible and convenient enough.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a length measuring device for processing metal lining plates, comprising an outer frame, an error indication block provided at the upper end of one side of the outer frame, and a first contact switch installed inside the error indication block; a comparison measuring component provided inside the outer frame along the inner side of the error indication block, the comparison measuring component comprising a lower sliding block, an inner sliding groove provided in the middle of the upper end face of the lower sliding block, an inner fixing rod fixed inside the inner sliding groove, a pressing sliding block slidably connected inside the inner sliding groove along the outside of the inner fixing rod, a pressure spring fixed between the outer wall of the inner sliding groove and the pressing sliding block along the outside of the inner fixing rod, a second contact switch installed outside the pressing sliding block, and a warning structure installed outside the outer frame, the warning structure, the second contact switch, and the first contact switch forming a series circuit.

[0007] Preferably, a connecting plate is fixed to the outer side of the upper end of the extrusion sliding block, an upper sliding groove is opened on the upper end face of the outer frame, the connecting plate passes through the upper sliding groove and is fixed with a first limiting plate, and a second limiting plate is fixed to the upper end of the outer frame along the outer side of the upper sliding groove. The first limiting plate and the second limiting plate are symmetrically arranged.

[0008] Preferably, both the first limiting plate and the second limiting plate are composed of a vertical plate portion and an expansion plate portion, with the expansion plate portion located at the input direction end of the metal liner and the vertical plate portion located at the output direction end of the metal liner.

[0009] Preferably, a drive motor is installed at the lower end of one side of the outer frame, a drive shaft is installed inside the outer frame along the output shaft end of the drive motor, a limit rod is provided inside the outer frame along the lower end of the front and rear ends of the drive shaft, a threaded part is provided on the outer side of the drive shaft away from the drive motor, a lower sliding block is threadedly connected to the threaded part, and the lower sliding block is limited and slidably connected to the limit rod.

[0010] Preferably, a first sliding groove is provided at the upper end of the front end face of the outer frame, and threaded posts are fixed to the front and rear ends of the error indication block by a shaft. The threaded posts are located at the outer end of the first sliding groove and are connected to the nut by threads.

[0011] Preferably, a first indicator arrow is fixed to the outer side of the front end of the error indication block, a second indicator arrow is fixed to the outer side of the front end of the sliding block, a second sliding groove is provided on the front end face of the outer frame along the sliding trajectory of the first and second indicator arrows, and a scale is provided on the front end face of the outer frame along the indicating ends of the first and second indicator arrows.

[0012] Preferably, the outer frame is welded and fixed with a fixed bracket on the side of the front and rear ends near the second limiting plate. The two fixed brackets are fixed with fixed side plates on both sides of the upper end. Rotating rollers are connected in an array from front to back between the two fixed side plates. The rotating rollers are rotatably connected to the fixed side plates through bearings.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, when the difference between the length of the metal liner and the standard length is greater than the error value, the second contact switch contacts the first contact switch, and the warning structure issues a warning, which can promptly detect unqualified products, remind the staff to remove them for rework, and prevent unqualified products from flowing into the next process.

[0015] (2) In this utility model, the drive shaft is driven to rotate by the drive motor, which drives the lower sliding block to move. This allows for precise adjustment of the distance between the vertical plates of the first and second limiting plates, enabling the measurement and adjustment of the target length of the metal liner. Comparative measurements can be performed on metal liners of different target lengths, thus improving applicability.

[0016] (3) In this utility model, the position of the error prompt block can be adjusted according to the error value. The adjustment is made by the indication of the first and second indicator arrows at the top of the scale. The error prompt range can be flexibly adjusted according to actual needs, which improves the applicability and flexibility of the device and makes the error prompt more accurate and reliable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a length measuring device for processing metal liner plates according to the present invention, viewed from the main perspective.

[0018] Figure 2 This is a schematic diagram of the overall structure of a length measuring device for processing metal liner plates according to the present invention, viewed from an elevation angle.

[0019] Figure 3 This is a top view of a length measuring device for processing metal lining plates according to the present invention;

[0020] Figure 4 This is a cross-sectional view at point AA of a length measuring device for processing metal liner plates according to this utility model;

[0021] Figure 5 This is a schematic diagram of the error indication block of a length measuring device for processing metal liner plates according to the present invention;

[0022] Figure 6 This is a structural schematic diagram of the comparative measurement component of a length measuring device for processing metal liner plates according to the present invention.

[0023] In the diagram: 1. Outer frame; 2. Drive motor; 3. Drive shaft; 4. Threaded part; 5. Warning structure; 6. First sliding groove; 7. Second sliding groove; 8. Scale; 9. Error indication block; 10. Threaded column; 11. Nut; 12. First contact switch; 13. First indicator arrow; 14. Comparison measurement component; 15. Lower sliding block; 16. Second indicator arrow; 17. Inner sliding groove; 18. Inner fixing rod; 19. Pressing sliding block; 20. Pressure spring; 21. Second contact switch; 22. Connecting plate; 23. First limiting plate; 24. Upper sliding groove; 25. Second limiting plate; 26. Fixed bracket; 27. Fixed side plate; 28. Rotating roller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figures 1-6 This utility model provides an embodiment of a length measuring device for processing metal lining plates, comprising an outer frame 1. The outer frame 1 serves as the supporting structure for the entire device, providing a stable mounting base for other components and ensuring the stability and reliability of the device during operation. A drive motor 2 is mounted on the lower end of one side of the outer frame 1, serving as the power source for the entire device and providing continuous and stable power output. A drive shaft 3 is mounted inside the outer frame 1 along the output shaft end of the drive motor 2. Limiting rods are provided inside the outer frame 1 along the lower ends of the front and rear ends of the drive shaft 3. A threaded portion 4 is provided on the outer side of the drive shaft 3 away from the drive motor 2. When the drive motor 2 is working, it drives the drive shaft 3 to rotate. The limiting rods ensure the stability of the drive shaft 3 during rotation, preventing it from deviating and thus ensuring the motion accuracy of subsequent components.

[0026] Inside the outer frame 1, along the inner side of the error indication block 9, a comparison measurement component 14 is provided. The comparison measurement component 14 includes a lower sliding block 15, which is threadedly connected to the threaded part 4 and simultaneously slidably connected to a limit rod. When the drive shaft 3 rotates, the threaded connection between the threaded part 4 and the lower sliding block 15 drives the lower sliding block 15 to move linearly along the limit rod, controlling the movement distance of the lower sliding block 15 and thus adjusting the measurement length.

[0027] An inner sliding groove 17 is formed in the middle of the upper surface of the lower sliding block 15. An inner fixing rod 18 is fixed inside the inner sliding groove 17. A pressing sliding block 19 is slidably connected to the inner sliding groove 17 along the outer side of the inner fixing rod 18. A pressure spring 20 is fixed between the outer wall of the inner sliding groove 17 and the pressing sliding block 19 along the outer side of the inner fixing rod 18, so that the pressing sliding block 19 can slide along the inner fixing rod 18 in the inner sliding groove 17. The setting of the pressure spring 20 provides the reset force for the pressing sliding block 19. After the metal liner passes, the pressing sliding block 19 can be quickly reset, ready for the next measurement, thus improving the working efficiency of the device. A second contact switch 21 is installed on the outside of the pressing sliding block 19. An error indication block 9 is set on the upper end of one side of the outer frame 1. A first contact switch 12 is installed on the inner side of the error indication block 9. A warning structure 5 is installed on the outside of the outer frame 1. The warning structure 5 is either a buzzer or a warning light. Two warning structures can also be set, with the buzzer and the warning light connected in series. The warning structure 5, the second contact switch 21, and the first contact switch 12 form a series circuit. When the difference between the length of the metal liner and the standard length is greater than the error value, the pressing sliding block 19, the connecting plate 22 and the first limiting plate 23 move outward as a whole, so that the second contact switch 21 contacts the first contact switch 12. At this time, the circuit is connected, the warning structure 5 issues a warning, and reminds the staff to remove it for rework.

[0028] A connecting plate 22 is fixed to the outer side of the upper end of the extrusion sliding block 19. An upper sliding groove 24 is opened on the upper end face of the outer frame 1. The connecting plate 22 passes through the upper sliding groove 24 and is fixed with a first limiting plate 23. A second limiting plate 25 is fixed to the outer side of the upper end of the outer frame 1 along the upper sliding groove 24. The first limiting plate 23 and the second limiting plate 25 are symmetrically arranged. The first limiting plate 23 and the second limiting plate 25 are both composed of a vertical plate part and an expansion plate part. The expansion plate part is located at the metal liner input direction end, and the vertical plate part is located at the metal liner output direction end, so that the metal liner can smoothly enter between the expansion plate parts. As the conveying proceeds, one end of the metal liner enters between the vertical plate parts of the first limiting plate 23 and the second limiting plate 25. Since the second limiting plate 25 is fixed, it will push the metal liner to move towards the first limiting plate 23.

[0029] The upper end of the front face of the outer frame 1 is provided with a first sliding groove 6. The front and rear ends of the error indication block 9 are fixed with threaded posts 10 by shafts. The threaded posts 10 are located at the outer end of the first sliding groove 6 and are connected to the nut 11 by threads. By loosening the nut 11, the threaded posts 10 can slide along the first sliding groove 6, thereby adjusting the position of the error indication block 9. When the target position is reached, the nut 11 is tightened to fix it.

[0030] A first indicator arrow 13 is fixed to the outer side of the front end of the error indication block 9, and a second indicator arrow 16 is fixed to the outer side of the front end of the sliding block 15. A second sliding groove 7 is provided on the front surface of the outer frame 1 along the sliding trajectory of the first and second indicator arrows 13 and 16. A scale 8 is provided on the front surface of the outer frame 1 along the indicating ends of the first and second indicator arrows 13 and 16. When adjusting the position of the error indication block 9, precise adjustment can be made according to the indications of the first and second indicator arrows 13 and 16 at the upper end of the scale 8.

[0031] Fixed brackets 26 are welded and fixed to both the front and rear ends of the outer frame 1 near the second limiting plate 25. Fixed side plates 27 are fixed to both sides of the upper end of the two fixed brackets 26. Rotating rollers 28 are connected in an array from front to back between the two fixed side plates 27, and the rotating rollers 28 are rotatably connected to the fixed side plates 27 via bearings. The external conveying device transports the metal liner to the upper end of the rotating rollers 28. As the external conveying device rotates continuously, it exerts a force on the metal liner, causing the metal liner to be transported from the upper end of the rotating rollers 28, which then rotate accordingly. This design allows the metal liner to be smoothly transported to the measurement area.

[0032] To facilitate the conveying of metal liners of different qualities, a turntable conveyor is installed at the output end of the rotating roller 28, and two normal conveying structures are installed at the outer end of the turntable conveyor structure to separate the conveying of qualified and unqualified products. Based on this overall structure, the length of the inner sliding groove 17 is increased, and springs are installed between the second contact switch 21 and the first contact switch 12 and their corresponding connecting structures. This increases the outward movement distance of the pressing sliding block 19, the connecting plate 22, and the first limiting plate 23. When the second contact switch 21 and the first contact switch 12 are pressed into contact, the pressing sliding block 19, the connecting plate 22, and the first limiting plate 23 have not yet moved to their limit positions. As the metal liner continues to move, the pressing sliding block 19, the connecting plate 22, and the first limiting plate 23 continue to move outward, and the springs between the second contact switch 21 and the first contact switch 12 and their connecting structures are compressed, but the contact state of the second contact switch 21 and the first contact switch 12 is always maintained. Based on this structure, even when the length of the metal liner plate differs from the standard length by more than the error value, it can still be conveyed out. By rotating the turntable conveyor, the output end of the turntable conveyor rotates to the conveyor line for non-conforming products. Then, the turntable conveyor rotates back to its original position, and the output end rotates to the conveyor line for conforming products, allowing for normal product output.

[0033] Working principle: Adjust the position of the comparison and measurement component 14 according to the target length of the metal liner; drive motor 2 drives drive shaft 3 to rotate, and through the threaded connection between the threaded part 4 on drive shaft 3 and the lower sliding block 15, drive the lower sliding block 15 to move, and drive the upper end of the lower sliding block 15 to move, so that the distance between the vertical plate parts of the first limiting plate 23 and the second limiting plate 25 is the target length.

[0034] Adjust the position of the error indicator block 9 according to the error value; loosen the nut 11 so that the threaded column 10 can slide along the first sliding groove 6; adjust the position of the error indicator block 9 according to the indication of the first indicator arrow 13 and the second indicator arrow 16 at the upper end of the scale 8; tighten the nut 11 to fix it when the target position is reached.

[0035] The external conveying equipment conveys the metal liner. The metal liner enters between the expansion plate portion of the first limiting plate 23 and the second limiting plate 25. As the conveying proceeds, one end of the metal liner enters between the vertical plate portion of the first limiting plate 23 and the second limiting plate 25. Due to the fixation of the second limiting plate 25, the metal liner is pushed to move towards the first limiting plate 23. When the metal liner is of standard size, it is conveyed normally. When the difference between the length of the metal liner and the standard length is within the error value, the metal liner will push the first limiting plate 23 to move outward, causing the pressing sliding block 19, connecting plate 22, and first limiting plate 23 to move outward along the inner fixing rod 18, and the pressure spring 20 is compressed. When the difference between the length of the metal liner and the standard length is greater than the error value, the pressing sliding block 19, connecting plate 22, and first limiting plate 23 move outward as a whole, causing the second contact switch 21 to contact the first contact switch 12. At this time, the circuit between the second contact switch 21, the first contact switch 12, the power supply, and the warning structure 5 is connected, and the warning structure 5 issues a warning, reminding the staff to remove it for rework. When a single metal liner is conveyed to the next level of conveying equipment, the pressure spring 20 actuates to push the pressing sliding block 19, connecting plate 22, and first limiting plate 23 to reset as a whole.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A length measuring device for processing metal liner plates, comprising an outer frame (1), characterized in that: An error indicator block (9) is provided on the upper end of one side of the inner side of the outer frame (1), and a first contact switch (12) is installed on the inner side of the error indicator block (9); a comparison measurement component (14) is provided inside the outer frame (1) along the inner side of the error indicator block (9), the comparison measurement component (14) includes a lower sliding block (15), an inner sliding groove (17) is opened in the middle of the upper end face of the lower sliding block (15), and an inner fixing rod (18) is fixed inside the inner sliding groove (17). A compression sliding block (19) is slidably connected to the inner fixed rod (18) outside the inner sliding groove (17). A pressure spring (20) is fixed between the outer wall of the inner sliding groove (17) and the compression sliding block (19) along the outer side of the inner fixed rod (18). A second contact switch (21) is installed on the outer side of the compression sliding block (19). A warning structure (5) is installed on the outer side of the outer frame (1). The warning structure (5), the second contact switch (21) and the first contact switch (12) form a series circuit.

2. The length measuring device for processing metal liner plates according to claim 1, characterized in that: A connecting plate (22) is fixed to the outer side of the upper end of the extrusion sliding block (19). An upper sliding groove (24) is opened on the upper end face of the outer frame (1). The connecting plate (22) passes through the upper sliding groove (24) and is fixed with a first limiting plate (23). A second limiting plate (25) is fixed to the outer side of the upper end of the outer frame (1) along the upper sliding groove (24). The first limiting plate (23) and the second limiting plate (25) are symmetrically arranged.

3. The length measuring device for processing metal liner plates according to claim 2, characterized in that: The first limiting plate (23) and the second limiting plate (25) are both composed of a vertical plate part and an expansion plate part. The expansion plate part is located at the input direction end of the metal liner, and the vertical plate part is located at the output direction end of the metal liner.

4. The length measuring device for processing metal liner plates according to claim 1, characterized in that: A drive motor (2) is installed on the lower end of one side of the outer frame (1). A drive shaft (3) is installed inside the outer frame (1) along the output shaft end of the drive motor (2). A limit rod is provided at the lower end of the front and rear ends of the drive shaft (3) inside the outer frame (1). A threaded part (4) is provided on the side of the drive shaft (3) away from the drive motor (2). The lower sliding block (15) is threadedly connected to the threaded part (4). The lower sliding block (15) is limited and slidably connected to the limit rod.

5. The length measuring device for processing metal liner plates according to claim 1, characterized in that: The upper end of the front face of the outer frame (1) is provided with a first sliding groove (6), and the front and rear ends of the error indication block (9) are fixed with threaded columns (10) by shafts. The threaded columns (10) are located at the outer end of the first sliding groove (6) and are connected to the nut (11) by threads.

6. The length measuring device for processing metal liner plates according to claim 1, characterized in that: The error indication block (9) has a first indicator arrow (13) fixed on the outer side of its front end, and the lower sliding block (15) has a second indicator arrow (16) fixed on the outer side of its front end. The front surface of the outer frame (1) is provided with a second sliding groove (7) along the sliding trajectory of the first indicator arrow (13) and the second indicator arrow (16). The front surface of the outer frame (1) is provided with a scale (8) along the indicating ends of the first indicator arrow (13) and the second indicator arrow (16).

7. The length measuring device for processing metal liner plates according to claim 2, characterized in that: The outer frame (1) has fixed brackets (26) welded and fixed on the front and rear ends near the second limiting plate (25). Fixed side plates (27) are fixed on both sides of the upper end of the two fixed brackets (26). Rotating rollers (28) are connected in an array from front to back between the two fixed side plates (27). The rotating rollers (28) and the fixed side plates (27) are rotatably connected by bearings.

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