A marking machine positioning mechanism

Abstract

The utility model discloses a marking machine positioning mechanism, including base and two fixed blocks, and the top plate bottom of fixed block is equipped with cylinder barrel, and the inside cylinder barrel is connected through spring connecting rod axle, and the bottom of rod axle is equipped with clamping plate, and the base is equipped with slide rail strip, and the slide rail strip is equipped with two slide blocks of sliding, and two fixed blocks are fixed on two slide blocks top respectively, and the top of each fixed block is fixed nut block, and two nut blocks are commonly connected with threaded shaft, and the top plate bottom surface of fixed block is connected with U -shaped strip of can hold clamping plate behind sliding, and the structure of marking machine positioning mechanism is set as base, slide rail strip, slide block, fixed block, nut block and threaded shaft, U -shaped strip, when positioning limit circuit board, sliding U -shaped strip, and compressing rod axle upwards, make U -shaped strip cover on clamping plate, reduce resistance, and reduce the abrasion of circuit board with this, in addition, and the fixed block is limited through slide rail strip, and is adjusted through threaded shaft spacing, improves circuit board positioning accuracy, avoids circuit board deviation.

Description

Technical Field

[0001] This utility model belongs to the field of marking machine technology, and in particular relates to a marking machine positioning mechanism. Background Technology

[0002] Circuit boards are essential electronic components, serving as the support for electronic devices and the carrier for their electrical connections. Printed circuit boards have evolved from single-layer to double-sided, multi-layer, and flexible designs, and continue to develop in their respective directions. Driven by continuous advancements in precision, density, and reliability, along with reductions in size, cost, and performance, printed circuit boards maintain their strong vitality in the development of future electronic devices.

[0003] When manufacturing circuit boards, lasers are used to print marks on them. Therefore, the circuit boards need to be positioned to ensure the accuracy of the marking. Since circuit boards come in different sizes, existing positioning devices are not suitable for the positioning needs of circuit boards of different sizes.

[0004] Regarding the positioning mechanism of a marking machine, a search reveals a utility model patent with Chinese patent authorization announcement number CN209902479U that discloses a positioning device for marking circuit boards. This device mainly includes a stainless steel base, with a magnet magnetically connected to the top of the base. Two sets of magnets are each mounted with a slotted frame. A cylinder is installed inside the slotted frame, and a spring is installed inside the cylinder. A limit plate is installed at the lower end of the spring, and a linkage rod is installed at the bottom of the limit plate. A clamping plate is installed at the lower end of the linkage rod. A support rod is installed on one side of the slotted frame, and a limit block is sleeved on the upper part of the support rod.

[0005] In the actual implementation of existing marking machine positioning mechanisms with similar technical solutions, there are areas that need improvement: when pushing the circuit board inward, the downward clamping force of the upper clamping plate not only wears down the circuit board, but also causes a large pushing resistance; in addition, the magnetic connection between the magnet and the base makes it easy to move the position of the magnet, causing the circuit board to deviate in direction. Utility Model Content

[0006] In view of the shortcomings and defects in the existing technology, the purpose of this utility model is to provide a marking machine positioning mechanism, which solves the problems of the existing marking machine positioning mechanism, such as the circuit board being worn due to the downward clamping force of the upper clamping plate when pushing the circuit board in, and the large pushing resistance, as well as the problem that the magnetic connection between the magnet and the base makes it easy to move the position of the magnet, causing the circuit board to deviate in direction.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a marking machine positioning mechanism, including a base and two fixing blocks. The cross-sectional shape of the fixing blocks is an inverted L-shape. A cylinder is provided at the bottom of the top plate of the fixing blocks. A rod shaft that can slide along the cylinder is connected by a spring inside the cylinder. A clamping plate is provided at the bottom of the rod shaft. The base is provided with a left-right sliding rail. Two slide seats are slidably provided on the sliding rail. The two fixing blocks are arranged facing each other and are respectively fixed above the two slide seats. A nut block is fixed above each fixing block. The two nut blocks are threadedly connected to a threaded shaft. The threads at both ends of the threaded shaft have opposite directions. A vertical plate is provided on both the left and right sides of the sliding rail on the base. The two ends of the threaded shaft are rotatably connected to the vertical plate, and one end of the threaded shaft passes through the vertical plate and is fixedly connected to a handwheel. A U-shaped strip that can hold the clamping plate is slidably connected back and forth on the bottom surface of the top plate of the fixing blocks. A rubber plate that can clamp the circuit board is provided on the inner side of the two slide seats above the sliding rail.

[0008] As a further improvement of this utility model, each of the two rubber plates is provided with a groove on the side facing each other, which allows the rubber plates to be inserted.

[0009] As a further improvement of this utility model, the top surface of the groove is gradually inclined upward from the side closer to the center of the base to the side farther away from the center of the base.

[0010] As a further improvement of this utility model, the bottom surface of the clamping plate is provided with a rubber layer.

[0011] As a further improvement of this utility model, the cross-sectional shape of the slide rail is T-shaped.

[0012] As a further improvement of this utility model, the bottom surface of the U-shaped strip is higher than the top surface of the rubber sheet.

[0013] As a further improvement of this utility model, a support block is provided on one side of the rubber sheet, and the upper surface of the support block is flush with the bottom surface of the groove.

[0014] Compared with the prior art, this utility model has the following advantages: 1. By setting the marking machine positioning mechanism as a base, slide rail, slide block, fixing block, nut block, threaded shaft, and U-shaped strip, when positioning and limiting the circuit board, the threaded shaft can be rotated according to the width of the circuit board to adjust the distance between the two fixing blocks, so that the distance between the two rubber plates matches the width of the circuit board. Then, the U-shaped strip is slid and the rod shaft is compressed upward so that the U-shaped strip is fitted onto the clamping plate. Then, the circuit board is pushed inward from one side into the rubber plate, or the circuit board is directly inserted into the two rubber plates from above and below. It is simple and convenient because there is no clamping effect of the clamping plate, which reduces resistance and thus reduces the wear of the circuit board.

[0015] In addition, the fixing block is limited by the slide rail and the symmetrical spacing is adjusted by the threaded shaft, which improves the accuracy of the circuit board's position relative to the base, reduces or avoids circuit board offset, and facilitates subsequent operations.

[0016] 2. By creating grooves in the rubber sheet, the circuit board can be directly inserted into the grooves in the rubber sheet when positioning the left and right edges, thereby limiting the vertical movement of the circuit board and improving accuracy.

[0017] 3. By tilting the top surface of the groove, the contact area between the top surface of the groove and the circuit board can be reduced, thereby reducing the resistance between the circuit board and the rubber plate when pushing or pulling the circuit board.

[0018] 4. By setting a support block on one side of the rubber sheet, the bottom surface of the circuit board can be rigidly limited, reducing errors caused by the deformation of the rubber sheet. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view at point A; Figure 3 for Figure 1 Enlarged view at point B; In the diagram: 1. Base; 2. Fixing block; 3. Cylinder; 4. Rod shaft; 5. Clamping plate; 6. Slide rail; 7. Slide seat; 8. Nut block; 9. Threaded shaft; 10. Vertical plate; 11. Handwheel; 12. U-shaped strip; 13. Rubber plate; 14. Groove; 15. Support block. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-3 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0021] For ease of description, the coordinate system is defined as follows: Figure 1 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0022] This utility model discloses a positioning mechanism for a marking machine. (Refer to...) Figure 1 and Figure 3A marking machine positioning mechanism includes a base 1 and two fixing blocks 2. The fixing blocks 2 have an inverted L-shaped cross-section. A cylinder 3 is provided at the bottom of the top plate of the fixing block 2. A rod shaft 4 that can slide along the cylinder 3 is connected by a spring inside the cylinder 3. A clamping plate 5 is fixed at the bottom of the rod shaft 4. A rubber layer is fixed on the bottom surface of the clamping plate 5. A left-right sliding rail 6 is fixed on the base 1. The sliding rail 6 has a T-shaped cross-section. Two sliding seats 7 are slidably mounted on the sliding rail 6. The two fixing blocks 2 are arranged facing each other and are fixed above the two sliding seats 7 respectively. A nut block 8 is fixed above each fixing block 2. The two nut blocks 8 together... A threaded shaft 9 is connected to the threaded connection. The threads at both ends of the threaded shaft 9 turn in opposite directions. Two nut blocks 8 are respectively set at both ends of the threaded shaft 9. A vertical plate 10 is fixed on both sides of the slide rail 6 on the base 1. The two ends of the threaded shaft 9 are rotatably connected to the vertical plate 10, and one end of the threaded shaft 9 passes through the vertical plate 10 and is fixedly connected to a handwheel 11. A U-shaped strip 12 that can hold the clamping plate 5 is slidably connected to the bottom surface of the top plate of the fixing block 2. The bottom surface of the U-shaped strip 12 is higher than the top surface of the rubber plate 13. A rubber plate 13 that can clamp the circuit board is fixed on the inner side of the two slide blocks 7 above the slide rail 6. Figure 1 and Figure 2 As shown, each of the two rubber plates 13 has a groove 14 on one of its facing sides, allowing the rubber plate 13 to be inserted. Therefore, when positioning the left and right edges of the circuit board, the circuit board is directly inserted into the groove 14 on the rubber plate 13, thereby limiting the vertical movement of the circuit board and improving accuracy. Furthermore, the top surface of the groove 14 gradually slopes upwards from the side closest to the center of the base 1 to the side furthest from the center of the base 1; this reduces the contact area between the top surface of the groove 14 and the circuit board, thus reducing the resistance between the circuit board and the rubber plate 13 when pushing or pulling the circuit board.

[0023] In addition, such as Figure 2 As shown, a support block 15 is fixedly provided on one side of the rubber plate 13. The upper surface of the support block 15 is flush with the bottom surface of the groove 14, and the bottom of the support block 15 is fixedly connected to the slide rail 6. By providing a support block 15 on one side of the rubber plate 13, a rigid limit can be provided for the bottom surface of the circuit board, reducing errors caused by the deformation of the rubber plate 13.

[0024] This utility model sets the marking machine positioning mechanism as a base 1, a slide rail 6, a slide block 7, a fixing block 2, a nut block 8, a threaded shaft 9, and a U-shaped strip 12. Therefore, when positioning and limiting the circuit board, the threaded shaft 9 can be rotated according to the width of the circuit board to adjust the distance between the two fixing blocks 2, so that the distance between the two rubber plates 13 matches the width of the circuit board. Then, the U-shaped strip 12 is slid and the rod shaft 4 is compressed upward so that the U-shaped strip 12 is fitted onto the clamping plate 5. Then, the circuit board is pushed inward from one side into the rubber plate 13, or the circuit board is directly inserted into the two rubber plates 13 from above and downward. It is simple and convenient. Because there is no clamping effect of the clamping plate 5, the resistance is reduced, thereby reducing the wear of the circuit board.

[0025] In addition, the fixing block 2 is limited by the slide rail 6 and the symmetrical spacing is adjusted by the threaded shaft 9, which improves the accuracy of the circuit board's position relative to the base 1, reduces or avoids circuit board offset, and facilitates subsequent operations.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. It should be understood that the specific embodiments described herein are only for understanding this utility model and are not intended to limit this utility model. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

Claims

1. A marking machine positioning mechanism, comprising a base and two fixing blocks, the fixing blocks having an inverted L-shaped cross-section, a cylinder being provided at the bottom of the top plate of the fixing blocks, a rod shaft that can slide along the cylinder being connected by a spring inside the cylinder, and a clamping plate being provided at the bottom of the rod shaft, characterized in that: The base is provided with a left-right oriented slide rail, on which two slide blocks are slidably mounted. Two fixing blocks are arranged facing each other and fixed above the two slide blocks respectively. A nut block is fixed above each fixing block. The two nut blocks are threadedly connected to a threaded shaft. The threads at both ends of the threaded shaft turn in opposite directions. A vertical plate is provided on both sides of the slide rail on the base. The two ends of the threaded shaft are rotatably connected to the vertical plate respectively, and one end of the threaded shaft passes through the vertical plate and is fixedly connected to a handwheel. A U-shaped strip that can hold the clamping plate is slidably connected to the bottom surface of the top plate of the fixing block. A rubber plate that can clamp the circuit board is provided on the inner side of the two slide blocks above the slide rail.

2. The marking machine positioning mechanism according to claim 1, characterized in that: Each of the two rubber plates has a groove on its facing side that allows the rubber plates to be inserted.

3. The marking machine positioning mechanism according to claim 2, characterized in that: The top surface of the groove is gradually inclined upwards from the side closer to the center of the base to the side farther away from the center of the base.

4. The marking machine positioning mechanism according to claim 1, characterized in that: The bottom surface of the clamping plate is provided with a rubber layer.

5. The marking machine positioning mechanism according to claim 1, characterized in that: The cross-sectional shape of the slide rail is T-shaped.

6. The marking machine positioning mechanism according to claim 1, characterized in that: The bottom surface of the U-shaped strip is higher than the top surface of the rubber sheet.

7. The marking machine positioning mechanism according to claim 2, characterized in that: A support block is provided on one side of the rubber sheet, and the upper surface of the support block is flush with the bottom surface of the groove.

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