A height-adjustable support

Abstract

The utility model discloses a support of quick height adjustment, including support base, the top fixedly connected with guide rod of support base, the outer surface sliding sleeve joint of guide rod has the slide, the outer surface one side fixedly connected with the marking head mounting seat of slide, the outer surface opposite side fixedly connected with the mounting panel of slide, the outer surface symmetrical fixedly connected with two bases of mounting panel, the both sides outer surface top of two bases all are collectively pivotally connected with the pressure seat, and two pressure seats all are installed adjustable pressure block, in the utility model, by the lever quick lock mechanism of handle, auxiliary rod, base, connecting rod and pressure seat, the complicated rotation of dozens of circles even hundreds of circles needed by traditional hand wheel screw rod is replaced completely with single time prying operation, realizes the quick adjustment and locking of marking head height, and the production change efficiency when the workpiece of large change processing is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of bracket technology, and in particular to a bracket with quick height adjustment. Background Technology

[0002] A laser marking machine bracket is a mechanical structural component used to fix and support the main body of the laser marking machine. Its core function is to ensure the relative positional accuracy between the laser beam path and the workpiece through high stability and rigidity, thereby guaranteeing the clarity and consistency of the marking effect. It is usually made of metal (such as aluminum alloy or steel) to resist vibration and deformation. Some brackets are designed with lifting, rotation, or multi-axis adjustment functions to adapt to the processing needs of workpieces of different sizes and shapes. It is an indispensable component of an integrated marking system.

[0003] In laser marking operations, frequent and accurate adjustment of the marking head height is a routine and necessary operation to accommodate workpieces of different thicknesses and shapes and to ensure the marking head is at the optimal focusing working distance. Currently, the most common adjustment method is a transmission structure using a handwheel and a precision screw. This structure typically works by rotating the handwheel to drive the screw, which in turn moves the nut connected to the marking head in a linear motion, thus achieving height adjustment.

[0004] However, the above structure has the following drawbacks: When the processing object changes and a large range of adjustment of the marking head height is required (for example, switching from processing flat workpieces to tall, three-dimensional workpieces), the operator must perform dozens or even hundreds of continuous handwheel rotations. This process is not only time-consuming and labor-intensive, but also severely slows down the production cycle. Secondly, when the threaded pair is subjected to continuous vibrations from the laser marking machine itself and the external environment, it is prone to microscopic relative rotation or "creep," which causes changes in the marking head position and affects the performance. Therefore, further improvements are needed. To this end, we propose a bracket for quick height adjustment. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a support that allows for rapid height adjustment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a bracket for quick height adjustment, comprising a bracket base, a guide rod fixedly connected to the top of the bracket base, a slide block slidably sleeved on the outer surface of the guide rod, and a marking head mounting seat fixedly connected to one side of the outer surface of the slide block;

[0007] A mounting plate is fixedly connected to the other side of the outer surface of the slide block. Two bases are symmetrically fixedly connected to the outer surface of the mounting plate. Pressure seats are rotatably connected to the top of the outer surfaces of both bases. Adjustable pressure blocks are installed on both pressure seats.

[0008] Both sides of the inner walls of the two pressure seats are rotatably connected to auxiliary rods, and both sides of the outer surfaces of the two auxiliary rods are rotatably connected to the bases with connecting rods. Both auxiliary rods are fixedly connected to a handle.

[0009] The top of the bracket base is symmetrically fixedly connected to two anti-slip plates, and the anti-slip plates are matched with adjustable pressure blocks, and the slide is sleeved on the outside of the two anti-slip plates.

[0010] Furthermore, the outer surface of the guide rod is provided with a scale on one side of the mounting plate, so that the operator can obtain intuitive and accurate numerical reference when adjusting the height.

[0011] Furthermore, the guide rod and the top of the two anti-slip plates are fixedly connected to a top plate, which enhances the overall structural stability and torsional resistance.

[0012] Furthermore, both adjustable pressure blocks include a bidirectional screw, which penetrates the pressure base. Two locking nuts are threaded onto the outer surface of the bidirectional screw, and the locking nuts are located on both sides of the pressure base and abut against it. A rubber block is fixedly connected to one end of the bidirectional screw on the anti-slip plate. The locking nuts are used to tighten the pressure from both sides, achieving reliable fine adjustment and long-term self-locking of the clamping force. This not only compensates for the wear gap between the rubber block and the anti-slip plate to maintain a constant locking force, but also ensures that all pressure blocks move synchronously.

[0013] Furthermore, the outer surfaces of both anti-slip plates are provided with anti-slip textures on one side of the rubber block. The anti-slip textures and the rubber block work together to transform the smooth surface contact into a macroscopic tooth-like interlocking, which greatly increases the static friction between the locking surfaces.

[0014] Furthermore, the top of the slide has two symmetrical through holes extending to the bottom, and the anti-slip plate passes through the through holes. The through holes prevent the anti-slip plate from affecting the movement of the slide.

[0015] The beneficial effects of this utility model are:

[0016] 1. When in use, this utility model uses a lever-type quick-lock mechanism consisting of a handle, auxiliary rod, base, connecting rod and pressure seat to completely replace the tedious rotation of dozens or even hundreds of turns required by the traditional handwheel screw with a single operation, realizing the rapid adjustment and locking of the marking head height, and greatly improving the production changeover efficiency when the workpiece is changed significantly.

[0017] 2. When in use, this utility model can generate a huge mechanical locking force after locking, which is far superior to the friction of the thread. The force is directly applied to the anti-slip plate with anti-slip texture through the adjustable pressure block. Combined with the self-locking characteristic of the connecting rod through the midpoint, a rigid whole with extremely strong vibration resistance is formed, which fundamentally solves the problem of marking head displacement caused by vibration. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a partial three-dimensional structural diagram of the present invention.

[0022] The attached figures are labeled as follows:

[0023] 1. Support base; 2. Guide rod; 3. Slide; 4. Marking head mounting base; 5. Top plate; 6. Scale; 7. Anti-slip plate; 8. Handle; 9. Through hole; 10. Rubber block; 11. Mounting plate; 12. Pressure seat; 13. Locking nut; 14. Double-acting screw; 15. Connecting rod; 16. Auxiliary rod; 17. Base. 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. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-3 As shown, a height-adjustable bracket is disclosed, comprising a bracket base 1. The bracket base 1 is designed to be fixed in a predetermined position on the worktable of a laser marking machine. A guide rod 2 is fixedly connected to the top of the bracket base 1. A slide block 3 is slidably sleeved on the outer surface of the guide rod 2. A marking head mounting seat 4 is fixedly connected to one side of the outer surface of the slide block 3, serving as a dedicated interface for the laser marking head. The slide block is designed with mounting holes that match the marking head to ensure that the marking head is accurately and firmly fixed.

[0026] A mounting plate 11 is fixedly connected to the other side of the outer surface of the slide block 3. The outer surface of the guide rod 2 is provided with a scale 6 on one side of the mounting plate 11. The scale 6 is a laser-etched scale, which has the characteristics of being permanent, clear and wear-resistant.

[0027] Two bases 17 are symmetrically fixedly connected to the outer surface of the mounting plate 11. The mounting plate 11 and the two bases 17 are fixed together by multiple bolts, which facilitates the disassembly and assembly of the bases 17. The top of the outer surfaces of both bases 17 are rotatably connected to pressure seats 12. Both pressure seats 12 are equipped with adjustable pressure blocks. Both adjustable pressure blocks include bidirectional screws 14, which pass through the pressure seats 12. Two locking nuts 13 are threaded on the outer surface of the bidirectional screws 14, and the locking nuts 13 are located on both sides of the pressure seats 12 and abut tightly against the pressure seats 12. A rubber block 10 is fixedly connected to one end of the bidirectional screws 14 at the anti-slip plate 7. The bidirectional screws 14 are used to fine-tune the initial pressing distance of the rubber block 10 relative to the anti-slip plate 7. It is the core component for realizing locking force compensation and synchronous adjustment of multiple pressure blocks. It is made of 304 stainless steel, and the threads at both ends are turned in opposite directions. The rubber block 10 is made of nitrile rubber, which has a high coefficient of friction, high wear resistance and good resistance to compression set.

[0028] Auxiliary rods 16 are rotatably connected to the inner walls of both sides of the two pressure seats 12. Connecting rods 15 are rotatably connected to the outer surfaces of both sides of the two auxiliary rods 16 and the base 17. The base 17 and the two connecting rods 15, the base 17 and the pressure seats 12, the pressure seats 12 and the auxiliary rods 16, and the auxiliary rods 16 and the two connecting rods 15 are all rotatably connected by pins. The two auxiliary rods 16 are fixedly connected to a handle 8. The handle 8 is a human-machine interface operating handle. By moving the handle 8, the operator can control the linkage of the entire four-bar locking mechanism and realize one-button unlocking and locking.

[0029] Two anti-slip plates 7 are symmetrically fixedly connected to the top of the bracket base 1, and the anti-slip plates 7 are matched with the adjustable pressure block. The slide seat 3 is sleeved on the outside of the two anti-slip plates 7. The guide rod 2 and the top of the two anti-slip plates 7 are fixedly connected to the top plate 5. The outer surface of the two anti-slip plates 7 is provided with anti-slip texture on one side of the rubber block 10. The top of the slide seat 3 has two through holes 9 symmetrically opened to the bottom, and the anti-slip plates 7 are set through the through holes 9.

[0030] Working principle: When height adjustment is required, the operator pulls the handle 8 upwards. The rotation of the handle 8 drives the auxiliary rod 16, which is fixedly connected to it, to rotate synchronously. The auxiliary rod 16 transmits the rotational motion to the two pressure seats 12 through two connecting rods 15, causing the two pressure seats 12 to rotate and lift outwards (i.e., away from the anti-slip plate 7) around their connection point with the base 17. The adjustable pressure block connected to the pressure seat 12 then disengages from the surface of the anti-slip plate 7, releasing the clamping force on the anti-slip plate 7. At this time, the entire slide 3, mounting plate 11, marking head mounting seat 4, and the entire locking mechanism act as a whole. With the accurate guidance formed by the slide 3 and the guide rod 2, they can slide up and down without obstruction, thereby quickly adjusting the marking head to the target height.

[0031] After the height adjustment is completed as indicated by scale 6, the operator pulls the handle 8 upwards. Through the transmission of auxiliary rod 16 and connecting rod 15, the two pressure seats 12 are moved inwards, forcing the adjustable pressure block to press tightly against the surface of the anti-slip plate 7. During this process, the connecting rod 15 generates a self-locking effect after passing the dead point, making it difficult for external forces such as vibration to easily reverse the mechanism. The rubber block 10 in the adjustable pressure block deforms under pressure, increasing the friction with the anti-slip texture on the anti-slip plate 7 and achieving a strong locking force. This locking force is ultimately transmitted to the mounting plate 11 and slide 3 through the pressure seat 12 and base 17, firmly locking them onto the guide rod 2 and anti-slip plate 7, ensuring absolute stability during processing.

[0032] The adjustable pressure block can be adjusted by rotating the bidirectional screw 14. After adjustment, it can be locked from both sides with two locking nuts 13 to fix the position of the rubber block 10, thereby compensating for wear and ensuring that all pressure seats 12 move synchronously.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A height-adjustable bracket, comprising a bracket base (1), characterized in that: The top of the bracket base (1) is fixedly connected to a guide rod (2), and a slide block (3) is slidably sleeved on the outer surface of the guide rod (2). A marking head mounting seat (4) is fixedly connected to one side of the outer surface of the slide block (3). A mounting plate (11) is fixedly connected to the other side of the outer surface of the slide (3). Two bases (17) are symmetrically fixedly connected to the outer surface of the mounting plate (11). The top of the outer surfaces of the two bases (17) are rotatably connected to pressure seats (12). Adjustable pressure blocks are installed on both pressure seats (12). The inner walls on both sides of the two pressure seats (12) are rotatably connected to auxiliary rods (16), the outer surfaces on both sides of the two auxiliary rods (16) are rotatably connected to the base (17) with connecting rods (15), and the two auxiliary rods (16) are fixedly connected to a handle (8). The top of the bracket base (1) is symmetrically fixedly connected to two anti-slip plates (7), and the anti-slip plates (7) are matched with the adjustable pressure block, and the slide (3) is sleeved on the outside of the two anti-slip plates (7).

2. The bracket for quick height adjustment according to claim 1, characterized in that: The outer surface of the guide rod (2) is provided with a scale (6) on one side of the mounting plate (11).

3. The bracket for quick height adjustment according to claim 1, characterized in that: The top plate (5) is fixedly connected to the top of the guide rod (2) and the two anti-slip plates (7).

4. The bracket for quick height adjustment according to claim 1, characterized in that: Both adjustable pressure blocks include a bidirectional screw (14), and the bidirectional screw (14) is installed through the pressure seat (12). Two locking nuts (13) are threaded on the outer surface of the bidirectional screw (14), and the locking nuts (13) are located on both sides of the pressure seat (12) and are in close contact with the pressure seat (12). A rubber block (10) is fixedly connected to one end of the bidirectional screw (14) located on the anti-slip plate (7).

5. The bracket for quick height adjustment according to claim 4, characterized in that: The outer surfaces of the two anti-slip plates (7) are provided with anti-slip textures on one side of the rubber block (10).

6. The bracket for quick height adjustment according to claim 1, characterized in that: The top of the slide (3) has two through holes (9) that extend to the bottom, and the anti-slip plate (7) is installed through the through holes (9).

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