A positioning clamp for laser marking on the surface of plastic products

Abstract

The utility model discloses a kind of plastic product surface laser marking positioning clamps, belong to plastic product surface laser marking positioning technical field, its technical scheme main point is: including support frame and multiple sliding blocks, wherein, exchange mechanism is set in each the sliding block, each exchange mechanism is symmetrically provided with first clamping plate and second clamping plate, limit mechanism is set on each the sliding block upper end, and self-locking mechanism is set on each sliding block upper end, after each self-locking mechanism transverse movement and disengaging corresponding limit mechanism, after each self-locking mechanism corresponding limit mechanism transverse movement and disengaging the exchange mechanism connected, each exchange mechanism completes 180 ° rotation, first clamping plate and second clamping plate on this exchange mechanism are exchanged synchronously, effect is to solve the problem that in the background technology when installing wedge-shaped cushion block, generally through bolt will install wedge-shaped cushion block, so as to cause to increase preparation time, reduce the problem of work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of laser marking and positioning technology on the surface of plastic products, and in particular, it is a laser marking and positioning fixture for the surface of plastic products. Background Technology

[0002] Laser marking on plastic products refers to a technology that uses a high-intensity monochromatic laser beam generated by stimulated emission to focus on the surface of plastic products. The high energy density of the laser causes physical or chemical changes in the material (such as melting, vaporization, carbonization, or discoloration), thereby forming permanent text, patterns, QR codes, serial numbers, and other information markings.

[0003] Laser marking and positioning fixtures for plastic products are precision tooling equipment designed specifically for plastic products. Their core function is to accurately fix the position and orientation of the plastic workpiece to be processed during the laser marking process, ensuring that the laser beam can form a clear, consistent and high-quality permanent mark in the target area according to the preset path.

[0004] Existing laser marking positioning fixtures for plastic products typically use a three-jaw self-centering chuck or elastic jaws to hold the plastic product to be marked. However, the three-jaw design is based on a circular outline and has extremely poor adaptability to polygonal, flat, or irregular cross-sections. This can lead to square or rectangular tubes not fitting effectively. In such cases, wedge-shaped pads need to be added to ensure clamping stability. However, when installing wedge-shaped pads, they are usually installed with bolts, which increases preparation time and reduces work efficiency.

[0005] The purpose of this invention is to provide a laser marking and positioning fixture for the surface of plastic products to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this invention is to provide a laser marking and positioning fixture for the surface of plastic products to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser marking and positioning fixture for the surface of plastic products, comprising a support frame and multiple sliders;

[0008] Each of the sliders is provided with an exchange mechanism, and each of the exchange mechanisms is symmetrically provided with a first clamping plate and a second clamping plate;

[0009] Each slider is provided with a limit mechanism at its upper end, and each slider is also provided with a self-locking mechanism at its upper end.

[0010] After each self-locking mechanism moves laterally and disengages from the corresponding limiting mechanism, after the limiting mechanism corresponding to each self-locking mechanism moves laterally and disengages from the connected exchange mechanism, each exchange mechanism completes a 180° rotation, and the first and second clamping plates on the exchange mechanism complete the exchange synchronously.

[0011] After each of the limiting mechanisms moves laterally to reset and passes through the corresponding exchange mechanism, and after each of the self-locking mechanisms moves laterally to reset and passes through the corresponding limiting mechanism, the position of each exchange mechanism is fixed.

[0012] Furthermore, each of the exchange mechanisms includes a rotating groove, a base, a first limiting hole, and a support rod. Each slider has a rotating groove, and a base is provided in each rotating groove. Each base has two sets of symmetrical first limiting holes, and a support rod is provided at the upper end of each base. A first clamping plate and a second clamping plate are symmetrically provided on each support rod to facilitate the exchange of positions between the first clamping plate and the second clamping plate.

[0013] Furthermore, each of the limiting mechanisms includes a horizontal plate, a limiting rod, and a second limiting hole. Each base has a horizontal plate symmetrically arranged on its upper end. Each set of horizontal plates is provided with a limiting rod. Each limiting rod can slide in a corresponding first limiting hole. One end of each limiting rod is provided with a second limiting hole to facilitate fixing the position of the base.

[0014] Furthermore, each of the self-locking mechanisms includes a connecting block, a self-locking rod, a spring, and an inclined surface. Each base has a connecting block at its upper end, and each connecting block has a self-locking rod. Each self-locking rod is connected to the corresponding connecting block by multiple springs, and each self-locking rod can pass through a corresponding second limiting hole. One side of each self-locking rod is smoothly inclined to facilitate fixing the position of the limiting rod.

[0015] Furthermore, each of the first clamps is planar, each of the second clamps is curved, and each of the first and second clamps is provided with an anti-slip pad on one side. Each anti-slip pad is in the form of a cross-grid, which facilitates the improvement of the anti-slip effect on plastic products.

[0016] Furthermore, the support frame is provided with a worktable, on which three slide rails are symmetrically arranged. Each slide rail has an electric telescopic rod located away from the center of the worktable, and each slide rail has a slider. The telescopic end of each electric telescopic rod is connected to the corresponding slider. A marking device is provided at the upper end of the support frame and at the center of the worktable to facilitate clamping and fixing plastic products and marking them.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention utilizes an exchange mechanism, a limiting mechanism, and a self-locking mechanism on each slider. By disengaging the self-locking rod from the second limiting hole and stretching each spring, followed by disengaging the limiting rod from the first limiting hole, and then gripping the support rod and rotating it 180° to exchange positions between the first and second clamping plates, the limiting rod is then inserted into the first limiting hole. The stretched springs then rebound, causing the self-locking rod to insert into the second limiting hole, thus fixing the limiting rod. This solves the problem in the prior art where wedge blocks are typically installed using bolts, leading to increased preparation time and reduced work efficiency. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the workbench in this utility model;

[0022] Figure 3 This is a schematic diagram of the slider structure in this utility model;

[0023] Figure 4 A schematic diagram of the support rod in this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] In the picture:

[0026] 1. Support frame; 2. Workbench; 3. Slide rail; 4. Electric telescopic rod; 5. Slider; 6. Exchange mechanism; 601. Rotary groove; 602. Base; 603. First limiting hole; 604. Support rod; 7. First clamping plate; 8. Second clamping plate; 9. Anti-slip pad; 10. Limiting mechanism; 1001. Horizontal plate; 1002. Limiting rod; 1003. Second limiting hole; 11. Self-locking mechanism; 1101. Connecting block; 1102. Self-locking rod; 1103. Spring; 1104. Inclined surface; 12. Marker. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0029] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0030] Please see Figures 1 to 4 As shown, this utility model provides a laser marking positioning fixture for the surface of plastic products, including a support frame 1 and multiple sliders 5;

[0031] Each slider 5 is equipped with an exchange mechanism 6, and each exchange mechanism 6 is symmetrically equipped with a first clamping plate 7 and a second clamping plate 8.

[0032] Each slider 5 is provided with a limit mechanism 10 at its upper end, and each slider 5 is also provided with a self-locking mechanism 11 at its upper end.

[0033] After each self-locking mechanism 11 moves laterally and disengages from the corresponding limiting mechanism 10, the limiting mechanism 10 corresponding to each self-locking mechanism 11 moves laterally and disengages from the connected exchange mechanism 6, and each exchange mechanism 6 completes a 180° rotation, the first clamping plate 7 and the second clamping plate 8 on the exchange mechanism 6 complete the exchange simultaneously.

[0034] After each limiting mechanism 10 moves laterally to reset and passes through the corresponding exchange mechanism 6, and after each self-locking mechanism 11 moves laterally to reset and passes through the corresponding limiting mechanism 10, the position of each exchange mechanism 6 is fixed.

[0035] It is used to achieve the following: by disengaging the self-locking rod 1102 from the second limiting hole 1003 and stretching each spring 1103, then disengaging the limiting rod 1002 from the first limiting hole 603, then holding the support rod 604 and rotating it 180°, the positions of the first clamping plate 7 and the second clamping plate 8 are exchanged. Next, the limiting rod 1002 is inserted into the first limiting hole 603. Then, the stretched spring 1103 will rebound to allow the self-locking rod 1102 to be inserted into the second limiting hole 1003, thereby fixing the limiting rod 1002. This can effectively and quickly clamp and fix plastic preparations of different shapes, thereby improving work efficiency.

[0036] Each exchange mechanism 6 includes a rotating groove 601, a base 602, a first limiting hole 603, and a support rod 604. Each slider 5 has a rotating groove 601, which is used to ensure the stable rotation of the base 602. Each rotating groove 601 is provided with a base 602. Each base 602 is provided with two sets of symmetrical first limiting holes 603, which are used to fix the base 602 by inserting the limiting rod 1002 into the first limiting hole 603. Each base 602 is provided with a support rod 604 at its upper end. Each support rod 604 is symmetrically provided with a first clamping plate 7 and a second clamping plate 8, which are used to clamp square plastic products with each first clamping plate 7 and clamp round plastic products with each second clamping plate 8.

[0037] Each limiting mechanism 10 includes a horizontal plate 1001, a limiting rod 1002, and a second limiting hole 1003. Each base 602 has a horizontal plate 1001 symmetrically arranged on its upper end, which is used to ensure the stable lateral movement of the limiting rod 1002. Each set of horizontal plates 1001 is provided with a limiting rod 1002, which is used to allow the limiting rod 1002 to pass through the first limiting hole 603, thereby fixing the base 602. Each limiting rod 1002 can slide in the corresponding first limiting hole 603. Each limiting rod 1002 has a second limiting hole 1003 at one end, which is used to allow the self-locking rod 1102 to be inserted into the second limiting hole 1003, thereby fixing the self-locking rod 1102.

[0038] Each self-locking mechanism 11 includes a connecting block 1101, a self-locking rod 1102, a spring 1103, and an inclined surface 1104. Each base 602 has a connecting block 1101 at its upper end, which ensures stable lateral sliding of the self-locking rod 1102. Each connecting block 1101 is equipped with a self-locking rod 1102, which is used to insert the self-locking rod 1102 into the second limiting hole 1003 to fix the limiting rod 1002. Each self-locking rod 1102 is connected to the... The corresponding connecting blocks 1101 are connected by multiple springs 1103, which are used to fix the position of the self-locking rod 1102. Each self-locking rod 1102 can pass through the corresponding second limiting hole 1003. One side of each self-locking rod 1102 is smooth and inclined, which is used to reduce the friction force generated when the limiting rod 1002 contacts the inclined surface 1104 of the self-locking rod 1102, so as to facilitate the limiting rod 1002 to automatically move the self-locking rod 1102.

[0039] Each first clamping plate 7 is flat and is used to clamp flat plastic products. Each second clamping plate 8 is curved and is used to clamp curved plastic products. Each first clamping plate 7 and each second clamping plate 8 has an anti-slip pad 9 on one side. Each anti-slip pad 9 is in the form of a cross-grid. The grid-like grooves divide the originally flat surface into dense protrusions and valleys, increasing the actual contact area several times compared to a smooth surface, thereby improving the anti-slip effect.

[0040] The support frame 1 is equipped with a workbench 2, on which three slide rails 3 are symmetrically arranged to ensure the stable sliding of the slider 5. Each slide rail 3 is equipped with an electric telescopic rod 4 located away from the center of the workbench 2 to control the movement of the slider 5. Each slide rail 3 is equipped with a slider 5, and the telescopic end of each electric telescopic rod 4 is connected to the corresponding slider 5. A marking device 12 is set at the upper end of the support frame 1 and at the center of the workbench 2 to mark the clamped and fixed plastic products.

[0041] Working principle: When it is necessary to clamp and fix square plastic products and mark them, first place the square plastic products on the workbench 2, then start the three electric telescopic rods 4 at the same time. After the three electric telescopic rods 4 are started, the sliders 5 connected to each other move towards the square plastic products in their respective slide rails 3 until the three first clamping plates 7 clamp and fix the square plastic products. Then, the marking device 12 is started to mark the fixed square plastic products.

[0042] When it is necessary to clamp, fix, and mark cylindrical plastic products, the self-locking rod 1102 on the connecting block 1101 is moved outward, which stretches each connected spring 1103 until the self-locking rod 1102 disengages from the second limiting hole 1003. Next, the limiting rods 1002 on the two horizontal plates 1001 are moved until they disengage from the first limiting hole 603. Then, the support rod 604 is grasped and rotated 180°. At this point, the base 6 connected to the asset... 02 will rotate synchronously within the rotating groove 601 to exchange the positions of the first clamping plate 7 and the second clamping plate 8. Next, the limiting rod 1002 will be moved laterally to reset and inserted into the first limiting hole 603. Then, the self-locking rod 1102 will be released. At this time, the stretched spring 1103 will rebound to insert the self-locking rod 1102 into the second limiting hole 1003, thereby fixing the limiting rod 1002. Finally, the other first clamping plates 7 and second clamping plates 8 will be rotated and exchanged in sequence in the above manner.

[0043] It should be noted that, in this document, relational terms such as "one" and "two" 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, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] 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 laser marking and positioning fixture for the surface of plastic products, characterized in that: Includes a support frame (1) and multiple sliders (5); Each slider (5) is provided with an exchange mechanism (6), and each exchange mechanism (6) is symmetrically provided with a first clamping plate (7) and a second clamping plate (8). Each slider (5) is provided with a limit mechanism (10) at its upper end, and each slider (5) is provided with a self-locking mechanism (11) at its upper end. After each self-locking mechanism (11) moves laterally and disengages from the corresponding limiting mechanism (10), after the limiting mechanism (10) corresponding to each self-locking mechanism (11) moves laterally and disengages from the connected exchange mechanism (6), each exchange mechanism (6) completes a 180° rotation, and the first clamping plate (7) and the second clamping plate (8) on the exchange mechanism (6) complete the exchange synchronously. After each of the limiting mechanisms (10) moves laterally to reset and passes through the corresponding exchange mechanism (6), and after each of the self-locking mechanisms (11) moves laterally to reset and passes through the corresponding limiting mechanism (10), the position of each of the exchange mechanisms (6) is fixed.

2. The laser marking and positioning fixture for plastic products according to claim 1, characterized in that: Each of the exchange mechanisms (6) includes a rotating groove (601), a base (602), a first limiting hole (603), and a support rod (604). Each of the sliders (5) is provided with a rotating groove (601). Each of the rotating grooves (601) is provided with a base (602). Each of the bases (602) is provided with two sets of symmetrical first limiting holes (603). Each of the bases (602) is provided with a support rod (604) at its upper end. Each of the support rods (604) is provided with a first clamping plate (7) and a second clamping plate (8) symmetrically arranged.

3. The laser marking and positioning fixture for plastic products according to claim 2, characterized in that: Each of the limiting mechanisms (10) includes a horizontal plate (1001), a limiting rod (1002), and a second limiting hole (1003). Each of the bases (602) has a horizontal plate (1001) symmetrically arranged on its upper end. Each set of horizontal plates (1001) is provided with a limiting rod (1002). Each limiting rod (1002) can slide in the corresponding first limiting hole (603). One end of each limiting rod (1002) is provided with a second limiting hole (1003).

4. A laser marking and positioning fixture for plastic products according to claim 3, characterized in that: Each of the self-locking mechanisms (11) includes a connecting block (1101), a self-locking rod (1102), a spring (1103), and an inclined surface (1104). Each base (602) has a connecting block (1101) at its upper end. Each connecting block (1101) has a self-locking rod (1102). Each self-locking rod (1102) is connected to the corresponding connecting block (1101) by multiple springs (1103). Each self-locking rod (1102) can pass through the corresponding second limiting hole (1003). One side of each self-locking rod (1102) is smooth and inclined.

5. A laser marking and positioning fixture for plastic products according to claim 2, characterized in that: Each of the first clamps (7) is planar, and each of the second clamps (8) is curved. Each of the first clamps (7) and each of the second clamps (8) is provided with an anti-slip pad (9) on one side, and each of the anti-slip pads (9) is in the form of a cross grid.

6. The laser marking and positioning fixture for plastic products according to claim 1, characterized in that: The support frame (1) is provided with a workbench (2), and three slide rails (3) are symmetrically provided on the workbench (2). Each slide rail (3) is provided with an electric telescopic rod (4) located away from the center of the workbench (2), and each slide rail (3) is provided with a slider (5). The telescopic end of each electric telescopic rod (4) is connected to the corresponding slider (5). A marking device (12) is provided at the upper end of the support frame (1) and at the center of the workbench (2).

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