Drill bit length measuring device

Abstract

The utility model provides a drill bit length measuring device which comprises a device body, a back plate is vertically installed on the edge of the top surface of the device body, a driving rod is installed on the surface of the back plate in a sliding mode, a measuring rod is movably installed on the surface of the bottom end of the driving rod, and scale marks are arranged on the surface of the driving rod. A plurality of arc-shaped placing grooves are formed in the surface of the top of the device body, and the plurality of arc-shaped placing grooves with different inner side diameters are formed in the top of the device body, so that the limitation that a traditional measuring device can only adapt to drill bits of a single specification is broken through, and the device can be compatible with the measurement work of the drill bits of various specifications; and the universality and the application scene coverage range of the device are obviously improved. The back plate, the driving rod and the measuring rod are combined to form a measuring structure capable of being flexibly adjusted, the driving rod is in sliding fit with scale marks, accurate length measurement can be achieved, accurate data support is provided for drill bit quality detection, and reliability and effectiveness of measuring results are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of drill bit length measurement technology, and in particular to a drill bit length measuring device. Background Technology

[0002] Printed circuit boards, also known as PCBs, require drill bits for drilling. The drill bits must be highly accurate. After grinding, the length of a drill bit needs to be measured. If the length exceeds the required range, the bit must be scrapped, otherwise it will affect the drilling quality.

[0003] Before use, drill bits need to undergo strict length testing to determine if they meet the requirements. Existing drill bits are inconvenient to fix during measurement and can only be fixed to parts of the same specifications, resulting in low flexibility. In addition, because the cutting edge of the drill bit is relatively fragile, the drill bit is easily damaged by bumps during measurement.

[0004] Therefore, it is necessary to provide a drill bit length measuring device to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a drill bit length measuring device, which solves the problems in the background art.

[0006] To address the aforementioned technical problems, this utility model provides a drill bit length measuring device, comprising a device body, a back plate vertically mounted on the edge of the top surface of the device body, a drive rod slidably mounted on the surface of the back plate, a measuring rod movably mounted on the bottom surface of the drive rod, and graduation lines on the surface of the drive rod. Multiple arc-shaped placement slots are formed on the top surface of the device body, each with a different inner diameter. These multiple arc-shaped placement slots with varying inner diameters on the top of the device body break the limitation of traditional measuring devices that can only adapt to a single specification of drill bit, enabling the device to be compatible with the measurement of various drill bit specifications, significantly improving the device's versatility and application scope. The combination of the back plate, drive rod, and measuring rod constitutes a flexibly adjustable measuring structure. The sliding of the drive rod, in conjunction with the graduation lines, enables precise length measurement, providing accurate data support for drill bit quality inspection and ensuring the reliability and validity of the measurement results.

[0007] Preferably, a second slide rail is provided on the bottom surface of the drive rod, and a second slider is provided on the top surface of the measuring rod. The second slider is slidably connected to the second slide rail. This design, where the second slide rail on the bottom surface of the drive rod is slidably connected to the second slider on the top surface of the measuring rod, gives the measuring rod flexible angle and position adjustment capabilities during measurement. This design not only helps the measuring rod to accurately fit drill bits of different shapes and placement angles, ensuring measurement accuracy, but also reduces unnecessary hard contact between the measuring rod and the drill bit through flexible movement, lowering the risk of drill bit damage during measurement, effectively protecting the integrity of the drill bit, and extending its service life.

[0008] Preferably, the measuring rod surface is provided with an indicator plate, one end of which contacts the scale line. The indicator plate surface and the measuring rod surface are on the same plane. This provides the operator with a clear and intuitive reading interface. During measurement, the indicator plate accurately indicates the scale value corresponding to the drill bit length, avoiding measurement errors caused by unclear readings or operational mistakes. This greatly improves measurement efficiency and reading accuracy, making the measurement results more intuitive and reliable, and facilitating the operator to quickly obtain drill bit length data.

[0009] Preferably, a first slide rail is provided on the surface of the back plate, and a first slider is provided at one end of the drive rod. The first slide rail and the first slider are slidably connected, providing a stable and smooth guiding structure for the movement of the drive rod. The operator can precisely adjust the position of the drive rod under the constraint of the first slide rail by pushing it, thereby controlling the relative position of the measuring rod and the drill bit, and achieving precise positioning of the starting point for drill bit length measurement. This structural design ensures the stability and accuracy of the drive rod's movement, laying the foundation for accurate measurement of the drill bit length.

[0010] Preferably, a rubber pad is embedded in the surface of the measuring rod. This rubber pad plays a crucial role in buffering and protecting the drill bit during measurement. The cutting edge of the drill bit is relatively fragile and easily damaged by impacts. The rubber pad effectively absorbs the impact force generated when the measuring rod contacts the drill bit, preventing the drill bit from being subjected to hard impacts. This design not only protects the performance and quality of the drill bit and reduces the scrapping of the drill bit due to measurement, but also indirectly reduces production costs and improves the company's economic efficiency.

[0011] Preferably, the bottom surface of the device body is provided with anti-slip stripes, which significantly enhance the stability of the device when placed. During the measurement operation, the operator may frequently adjust the position of the device or apply a certain amount of operating force. The anti-slip stripes can effectively increase the friction between the device and the placement surface, preventing the device from sliding or displacing, and ensuring the stability of the measurement process and the accuracy of the measurement results.

[0012] Compared with related technologies, the drill bit length measuring device provided by this utility model has the following advantages:

[0013] Compared to existing technologies, the top surface of the device body has multiple arc-shaped placement slots with different inner diameters, accommodating drill bits of different specifications. This overcomes the limitation of existing devices that can only fix parts of the same size, greatly improving the applicability and flexibility of the measuring device. Simultaneously, the drive rod slidingly mounted on the back plate surface, along with the scale lines on its surface and the movable measuring rod, forms a precise measuring structure. Through the sliding of the drive rod and the movement of the measuring rod, the length of the drill bit can be accurately measured, ensuring measurement accuracy and providing reliable data support for determining whether the drill bit meets usage requirements.

[0014] Compared with existing technologies, this drill bit length measuring device features a second slide rail on the bottom surface of the drive rod that is slidably connected to a second slider on the top surface of the measuring rod. This allows the measuring rod to be flexibly adjusted during use, ensuring measurement accuracy while reducing the likelihood of hard collisions between the measuring rod and the drill bit. Furthermore, the rubber pad embedded in the surface of the measuring rod provides cushioning and protection for the drill bit during measurement, effectively preventing damage to the drill bit's cutting edge and extending its service life.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a drill bit length measuring device provided by this utility model;

[0017] Figure 2 A schematic diagram of an arc-shaped placement groove structure for a drill bit length measuring device provided by this utility model;

[0018] Figure 3 A schematic diagram of the scale line structure of a drill bit length measuring device provided by this utility model;

[0019] Figure 4 A schematic diagram of the indicator plate structure of a drill bit length measuring device provided by this utility model.

[0020] Numbering on the map:

[0021] 1. Device body; 2. Arc-shaped placement slot; 3. Back plate; 4. First slide rail; 5. Drive rod; 6. Second slide rail; 7. First slider; 8. Scale line; 9. Measuring rod; 10. Second slider; 11. Indicator plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] First Embodiment

[0024] Please refer to the following: Figure 1-4 A drill bit length measuring device includes a device body 1. A back plate 3 is vertically mounted on the edge of the top surface of the device body 1. A drive rod 5 is slidably mounted on the surface of the back plate 3. A measuring rod 9 is movably mounted on the bottom surface of the drive rod 5. A scale line 8 is provided on the surface of the drive rod 5. Multiple arc-shaped placement grooves 2 are formed on the top surface of the device body 1, and the inner diameters of the multiple arc-shaped placement grooves 2 are all different. The multiple arc-shaped placement grooves 2 with different inner diameters on the top of the device body 1 break the limitation of traditional measuring devices that can only adapt to a single specification of drill bit, enabling the device to be compatible with the measurement of multiple specifications of drill bits, significantly improving the versatility and application scope of the device. The combination of the back plate 3, drive rod 5, and measuring rod 9 constitutes a flexibly adjustable measuring structure. The sliding of the drive rod 5 in conjunction with the scale line 8 enables accurate length measurement, providing precise data support for drill bit quality inspection and ensuring the reliability and validity of the measurement results.

[0025] The working principle of the drill bit length measuring device provided by this utility model is as follows:

[0026] When it is necessary to measure the length of the drill bit, first, according to the specifications of the drill bit, select the arc-shaped placement groove 2 on the top surface of the device body 1 that corresponds to the inner diameter, and place the drill bit stably in it. Due to the design of multiple arc-shaped placement grooves 2, it can accommodate drill bits of different specifications, enabling flexible measurement.

[0027] Next, the operator pushes the drive rod 5, and the first slider 7 at one end of the drive rod 5 slides within the first slide rail 4 on the surface of the back plate 3. Through this sliding connection, the drive rod 5 can move left and right along the back plate 3 to adjust to a suitable measurement starting position. The scale lines 8 on the surface of the drive rod 5 provide accurate readings for the measurement.

[0028] Then, after the drive rod 5 moves to the appropriate position, since the bottom surface of the drive rod 5 is provided with a second slide rail 6, the second slider 10 on the top surface of the measuring rod 9 can slide in the second slide rail 6. The operator can flexibly adjust the angle and position of the measuring rod 9 according to the specific position of the drill bit, so that the measuring rod 9 can accurately contact the drill bit and perform length measurement.

[0029] During the measurement process, one end of the indicator plate 11 on the surface of the measuring rod 9 contacts the scale line 8. The surface of the indicator plate 11 and the surface of the measuring rod 9 are on the same plane. When the measuring rod 9 contacts the drill bit and the measurement is completed, the value of the scale line 8 corresponding to the indicator plate 11 is the length of the drill bit. In this way, the drill bit length data can be obtained quickly and accurately, providing an intuitive and reliable result for judging whether the drill bit meets the usage requirements.

[0030] After the measurement is completed, the drill bit is removed from the arc-shaped placement slot 2. The entire measurement process is simple to operate, and the rubber pad embedded on the surface of the measuring rod 9 effectively protects the drill bit from damage during the measurement. At the same time, the anti-slip stripes on the bottom surface of the device body 1 ensure the stability of the device during the measurement process, ensuring the accuracy and reliability of the measurement results.

[0031] Compared with related technologies, the drill bit length measuring device provided by this utility model has the following advantages:

[0032] The top surface of the device body 1 has multiple arc-shaped placement slots 2 with different inner diameters, which can accommodate drill bits of different specifications. This overcomes the limitation of existing devices that can only fix parts of the same specification, greatly improving the applicability and flexibility of the measuring device. Meanwhile, the drive rod 5, which is slidably mounted on the surface of the back plate 3, and the scale lines 8 on its surface, together with the movable measuring rod 9, form a precise measuring structure. Through the sliding of the drive rod 5 and the movement of the measuring rod 9, the length of the drill bit can be accurately measured, ensuring measurement accuracy and providing reliable data support for determining whether the drill bit meets the usage requirements. The second slide rail 6 on the bottom surface of the drive rod 5 is slidably connected to the second slider 10 on the top surface of the measuring rod 9, allowing the measuring rod 9 to be flexibly adjusted in position during use. This ensures measurement accuracy while reducing the probability of hard collisions between the measuring rod 9 and the drill bit. Furthermore, the rubber pad embedded on the surface of the measuring rod 9 can buffer and protect the drill bit during measurement, effectively preventing damage to the drill bit's cutting edge during measurement and extending the drill bit's service life.

[0033] Second Embodiment

[0034] Please refer to the following: Figure 1-4Based on the drill bit length measuring device provided in the first embodiment of this application, the second embodiment of this application proposes another drill bit length measuring device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0035] Based on Example 1, see [link / reference] Figure 1-4 The driving rod 5 has a second slide rail 6 on its bottom surface, and the measuring rod 9 has a second slider 10 on its top surface. The second slider 10 is slidably connected to the second slide rail 6. This design, where the second slide rail 6 on the bottom surface of the driving rod 5 is slidably connected to the second slider 10 on the top surface of the measuring rod 9, gives the measuring rod 9 the ability to flexibly adjust its angle and position during measurement. This design not only helps the measuring rod 9 to accurately fit drill bits of different shapes and placement angles, ensuring measurement accuracy, but also reduces unnecessary hard contact between the measuring rod 9 and the drill bit through flexible movement, lowering the risk of damage to the drill bit during measurement, effectively protecting the integrity of the drill bit, and extending its service life.

[0036] Based on Example 1, see [link / reference] Figure 1-4 The measuring rod 9 has an indicator plate 11 on its surface. One end of the indicator plate 11 contacts the scale line 8, and the surface of the indicator plate 11 and the measuring rod 9 are on the same plane. This provides the operator with a clear and intuitive reading interface. During measurement, the indicator plate 11 accurately indicates the scale value corresponding to the drill bit length, avoiding measurement errors caused by unclear readings or operational mistakes. This greatly improves measurement efficiency and reading accuracy, making the measurement results more intuitive and reliable, and facilitating the operator to quickly obtain drill bit length data.

[0037] Based on Example 1, see [link / reference] Figure 1-4 The back plate 3 has a first slide rail 4 on its surface, and a first slider 7 is provided at one end of the drive rod 5. The first slide rail 4 and the first slider 7 are slidably connected. The first slide rail 4 on the surface of the back plate 3 and the first slider 7 at one end of the drive rod 5 provide a stable and smooth guiding structure for the movement of the drive rod 5. The operator can push the drive rod 5 and precisely adjust its position under the constraint of the first slide rail 4, thereby controlling the relative position of the measuring rod 9 and the drill bit, and achieving precise positioning of the starting point for measuring the drill bit length. This structural design ensures the stability and accuracy of the movement of the drive rod 5, laying the foundation for accurate measurement of the drill bit length.

[0038] Based on Example 1, see [link / reference] Figure 1-4The measuring rod 9 has a rubber pad embedded in its surface, which plays a crucial role in buffering and protecting the drill bit during measurement. The drill bit's cutting edge is relatively fragile and easily damaged by impacts. The rubber pad effectively absorbs the impact force generated when the measuring rod 9 contacts the drill bit, preventing the drill bit from being subjected to hard impacts. This design not only protects the performance and quality of the drill bit and reduces drill bit scrap due to measurement, but also indirectly reduces production costs and improves the company's economic efficiency.

[0039] Based on Example 1, see [link / reference] Figure 1-4 The bottom surface of the device body 1 is provided with anti-slip stripes, which significantly enhance the stability of the device when placed. During the measurement operation, the operator may frequently adjust the position of the device or apply a certain amount of operating force. The anti-slip stripes can effectively increase the friction between the device and the placement surface, preventing the device from sliding or displacing, and ensuring the stability of the measurement process and the accuracy of the measurement results.

[0040] It should be noted that all components used in this application are standard parts that can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets and welding that are mature in the prior art. The mechanical parts and electrical equipment adopt conventional models in the prior art. The circuit connection adopts conventional connection methods in the prior art. The electrical equipment is connected to an external safe power source. These will not be described in detail here.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A drill bit length measuring device, comprising a device body (1), characterized in that, A back plate (3) is vertically installed at the edge of the top surface of the device body (1). A drive rod (5) is slidably installed on the surface of the back plate (3). A measuring rod (9) is movably installed on the bottom surface of the drive rod (5). A scale line (8) is provided on the surface of the drive rod (5). An arc-shaped placement groove (2) is opened on the top surface of the device body (1). Multiple arc-shaped placement grooves (2) are opened, and the inner diameters of the multiple arc-shaped placement grooves (2) are all different.

2. The drill bit length measuring device according to claim 1, characterized in that, The bottom surface of the drive rod (5) is provided with a second slide rail (6), and the top surface of the measuring rod (9) is provided with a second slider (10). The second slider (10) is slidably connected to the second slide rail (6).

3. The drill bit length measuring device according to claim 1, characterized in that, The measuring rod (9) has an indicator plate (11) on its surface. One end of the indicator plate (11) is in contact with the scale line (8). The surface of the indicator plate (11) and the surface of the measuring rod (9) are on the same plane.

4. The drill bit length measuring device according to claim 1, characterized in that, The back plate (3) has a first slide rail (4) on its surface, and a first slider (7) is provided at one end of the drive rod (5). The first slide rail (4) and the first slider (7) are slidably connected.

5. The drill bit length measuring device according to claim 1, characterized in that, A rubber pad is embedded in the surface of the measuring rod (9).

6. The drill bit length measuring device according to claim 1, characterized in that, The bottom surface of the device body (1) is provided with anti-slip stripes.

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