Positioning auxiliary jig for screen printing machine

Abstract

The utility model discloses an auxiliary positioning jig for a screen printing machine, which is arranged on a workbench of the screen printing machine and comprises a moving platform, the moving platform and the workbench move relatively, a clamping assembly and a driving assembly are arranged on the moving platform, the clamping assembly is in transmission connection with the driving assembly, and the driving assembly is in transmission connection with the clamping assembly. The clamping end of the clamping assembly is driven by the driving assembly to move relative to the moving platform on the moving platform in the first direction of the workbench. A laser range finder is arranged on the mobile platform, and the detection end of the laser range finder faces the clamping assembly and is electrically connected with the clamping assembly; the lifting assembly is connected with the moving platform and drives the moving platform to move in the second direction of the workbench; the rotating assembly is arranged on the lifting assembly and drives the lifting assembly and the moving platform to rotate in the third direction of the workbench. According to the utility model, the positioning precision of the jig and the self-adaptive capability of the jig to printed materials with different shapes are improved.

Description

Technical Field

[0001] This utility model relates to the field of screen printing machine technology, and in particular to a positioning auxiliary fixture for screen printing machines. Background Technology

[0002] The screen printing process requires precise alignment between the printed pattern and the workpiece surface. Positioning fixtures ensure the workpiece remains stable and precisely aligned with the preset printing position during printing. This avoids printing deviations caused by workpiece movement or misalignment, improving the accuracy and clarity of the printed pattern. Therefore, positioning fixtures are indispensable tools in the screen printing process.

[0003] Existing positioning aids still have the following drawbacks during use:

[0004] 1. After prolonged use, wear or deformation of the fixture leads to a decrease in its positioning accuracy;

[0005] 2. It cannot be adapted to all types of substrates, especially those with irregular shapes or large size variations.

[0006] Therefore, it is urgent to research and develop a high-precision positioning auxiliary fixture that can adapt to substrates of different shapes to solve the above-mentioned technical problems. Summary of the Invention

[0007] The purpose of this invention is to provide a positioning auxiliary fixture for a screen printing machine, which can improve the positioning accuracy of the fixture and its adaptability to substrates of different shapes.

[0008] To achieve the above objectives, the positioning auxiliary fixture for screen printing machines provided by this utility model has the following specific implementation scheme:

[0009] A positioning auxiliary fixture for a screen printing machine is provided on the worktable of the screen printing machine. It includes a movable platform that moves relative to the worktable. A clamping component and a driving component are provided on the movable platform. The clamping component and the driving component are connected in a transmission manner. The clamping end of the clamping component is a soft clamping part. Under the drive of the driving component, the clamping component moves relative to the movable platform along a first direction of the worktable.

[0010] A laser rangefinder is provided on the mobile platform, with the detection end of the laser rangefinder facing the clamping assembly and electrically connected to the clamping assembly;

[0011] A lifting assembly is connected to the mobile platform and drives the mobile platform to move along a second direction of the worktable; and a rotating assembly is disposed on the lifting assembly and drives the lifting assembly and the mobile platform to rotate along a third direction of the worktable.

[0012] This utility model discloses a positioning auxiliary fixture for screen printing machines. Compared with the prior art, it uses a laser rangefinder installed on a moving platform. The detection end of the laser rangefinder faces the clamping component to detect the distance between the substrate and the clamping component, thereby controlling the clamping component to clamp and fix the substrate. The clamping end of the clamping component is used to adapt the flexible clamping part to clamp and fix substrates of different shapes, thus improving the adaptability of the positioning auxiliary fixture. At the same time, in conjunction with the lifting and rotating components, the substrate clamped by the positioning auxiliary fixture can be printed at different positions with adjustable angles, improving printing convenience.

[0013] In some embodiments, the clamping assembly includes a first clamping member and a second clamping member, both of which are clamping ends of the clamping assembly. The first clamping member is fixed to the mobile platform, and the second clamping member is driven by the driving assembly to move closer to or away from the first clamping member.

[0014] By employing two soft clamping components, a first clamping component and a second clamping component, the first clamping component is fixed, and the second clamping component moves closer to or away from the first clamping component under the transmission action of the drive assembly, thus achieving the clamping of the printing substrate.

[0015] In some embodiments, the driving assembly includes a first lead screw, a first slider, and a first motor. The first motor is located on the side of the moving platform opposite to the first clamping member. The first lead screw is drivenly connected to the first motor. The first slider is sleeved on the first lead screw. The second clamping member is provided on the first slider. The second clamping member moves closer to or away from the first clamping member under the drive of the first motor.

[0016] By using a first motor to drive the first lead screw to rotate, the first slider moves on the first lead screw, causing the second clamping member connected to the first slider to move closer to or away from the first clamping member, thereby improving the ease of use and stability of the positioning auxiliary fixture.

[0017] In some embodiments, the mobile platform is provided with a first guide groove extending along a first direction of the worktable, and a first guide block is provided in the first guide groove, the first guide block being connected to the second clamping member.

[0018] The accuracy and smoothness of the first clamping member's movement are improved by using the guiding cooperation of the first guide groove and the first guide block.

[0019] In some embodiments, a moving component is provided at the bottom of the moving platform, and a lifting component is provided on the moving component. The lifting component includes a second motor, a second lead screw, and a second slider. The second motor is provided on the moving component, and a second lead screw extending along a second direction of the worktable is drivenly connected to the second motor. The second slider is provided on the second lead screw, and the moving platform is provided on the second slider. The moving platform moves along the second direction of the worktable under the drive of the second motor.

[0020] By setting a moving component at the bottom of the moving platform and a lifting component on the moving component, the second motor of the lifting component drives the second lead screw to rotate, thereby driving the second slider to lift the moving platform, thus realizing the adjustment of the clamping height of the clamping component on the moving platform.

[0021] In some embodiments, a first guide rod is provided on both sides of the second lead screw, one end of the first guide rod is connected to the moving component, and the other end is connected to the moving platform.

[0022] By setting first guide rods on both sides of the second lead screw, the guiding and limiting functions of the first guide rods are used to improve the lifting stability and smoothness of the mobile platform.

[0023] In some embodiments, the moving component includes a moving motor, a moving slider, a moving plate, and a moving lead screw. The moving motor is mounted on the worktable of the screen printing machine and is connected to the moving lead screw. The moving slider is mounted on the moving lead screw, the moving plate is mounted on the moving slider, and the lifting component is mounted on the moving plate.

[0024] By using a moving motor to drive the moving lead screw to rotate, the moving slider drives the moving plate and the lifting components on the moving plate, thereby realizing the displacement of the auxiliary positioning fixture on the worktable.

[0025] In some embodiments, a second guide rod is provided on both sides of the movable lead screw, with one end of the second guide rod connected to the movable plate and the other end connected to the worktable.

[0026] By setting second guide rods on both sides of the moving lead screw, the guiding and limiting functions of the second guide rods are used to improve the displacement stability and smoothness of the positioning auxiliary fixture.

[0027] In some embodiments, the rotating assembly includes a telescopic cylinder and a fixed rod, both of which are mounted on the lifting assembly and are hinged to the moving platform. The telescopic cylinder drives the moving platform to rotate upward on a third side of the worktable.

[0028] By using a telescopic cylinder and a fixed rod as rotating components, one end of the moving platform is fixed by the fixed rod, and the telescopic cylinder extends and retracts to rotate the moving platform, thereby adjusting the angle of the moving platform to adapt to printing in different directions.

[0029] In some embodiments, the first direction of the worktable is the horizontal direction of the worktable, the second direction of the worktable is the vertical direction of the worktable, and the third direction of the worktable is the circumferential direction of the hinge rod between the telescopic cylinder and the moving platform.

[0030] Based on the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0031] By setting a laser rangefinder on the mobile platform, with the detection end of the laser rangefinder facing the clamping component, the distance between the substrate and the clamping component is detected, and the clamping component is controlled to clamp and fix the substrate. The clamping end of the clamping component is used to adapt the soft clamping part to clamp and fix substrates of different shapes, thereby improving the adaptability of the positioning auxiliary fixture. At the same time, in conjunction with the lifting and rotating components, the substrate clamped by the positioning auxiliary fixture can be printed at different positions with adjustable angles, thereby improving the convenience of printing. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a side view of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100. Workbench; 200. Moving platform; 300. Moving component; 310. Moving motor; 320. Moving lead screw; 340. Moving slider; 350. Second guide rod; 400. Clamping component; 410. First clamping member; 420. Second clamping member; 500. Drive component; 510. First motor; 520. First lead screw; 530. First slider; 540. First guide groove; 560. First guide block; 600. Lifting component; 610. Second motor; 620. Second lead screw; 630. Second slider; 640. First guide rod; 700. Rotating component; 710. Telescopic cylinder; 720. Fixed rod. Detailed Implementation

[0036] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0037] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0038] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0039] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0040] like Figure 1-2 As shown, the positioning auxiliary fixture for screen printing machines provided in this embodiment is disposed on the worktable 100 of the screen printing machine and includes a movable platform 200. The movable platform 200 is movable relative to the worktable 100. A clamping component 400 and a driving component 500 are provided on the movable platform 200. The clamping component 400 is connected to the driving component 500 in a transmission manner. The clamping end of the clamping component 400 is a soft clamping member. Under the drive of the driving component 500, it is movable relative to the movable platform 200 on the movable platform 200 along the first direction of the worktable 100.

[0041] A laser rangefinder is provided on the mobile platform 200, and the detection end of the laser rangefinder faces the clamping assembly 400 and is electrically connected to the clamping assembly 400.

[0042] A lifting assembly 600 is connected to the mobile platform 200 and drives the mobile platform 200 to move along a second direction of the worktable 100; and a rotating assembly 700 is disposed on the lifting assembly 600 and drives the lifting assembly 600 and the mobile platform 200 to rotate along a third direction of the worktable 100.

[0043] In some embodiments, the clamping assembly 400 includes a first clamping member 410 and a second clamping member 420, both of which are clamping ends of the clamping assembly 400. The first clamping member 410 is fixed on the mobile platform 200, and the second clamping member 420 is connected to the driving assembly 500 and moves closer to or away from the first clamping member 410 under the drive of the driving assembly 500.

[0044] By employing two soft clamping components, a first clamping component 410 and a second clamping component 420, the first clamping component 410 is fixed, and the second clamping component 420 moves closer to or further away from the first clamping component 410 under the transmission action of the drive assembly 500, thereby achieving the clamping of the printing substrate.

[0045] In some embodiments, the drive assembly 500 includes a first lead screw 520, a first slider 530, and a first motor 510. The first motor 510 is disposed on the side of the moving platform 200 opposite to the first clamping member 410. The first lead screw 520 is drivenly connected to the first motor 510. The first slider 530 is sleeved on the first lead screw 520. The second clamping member 420 is disposed on the first slider 530. The second clamping member 420 moves closer to or away from the first clamping member 410 under the drive of the first motor 510.

[0046] By using a first motor 510 to drive the first lead screw 520 to rotate, the first slider 530 moves on the first lead screw 520, causing the second clamping member 420 connected to the first slider 530 to move closer to or away from the first clamping member 410, thereby improving the ease of use and stability of the positioning auxiliary fixture.

[0047] In some embodiments, the mobile platform 200 is provided with a first guide groove 540 extending along a first direction of the worktable 100, and a first guide block 560 is provided on the first guide groove 540, the first guide block 560 being connected to the second clamping member 420.

[0048] The accuracy and smoothness of the movement of the first clamping member 410 are improved by using the guiding cooperation of the first guide groove 540 and the first guide block 560.

[0049] In some embodiments, a moving component 300 is provided at the bottom of the moving platform 200, and a lifting component 600 is provided on the moving component 300. The lifting component 600 includes a second motor 610, a second lead screw 620, and a second slider 630. The second motor 610 is provided on the moving component 300, and the second lead screw 620 extending along a second direction of the worktable 100 is driven and connected to the second motor 610. The second slider 630 is provided on the second lead screw 620, and the moving platform 200 is provided on the second slider 630. The moving platform 200 moves along the second direction of the worktable 100 under the drive of the second motor 610.

[0050] By setting a moving component 300 at the bottom of the moving platform 200, and a lifting component 600 on the moving component 300, the second motor 610 of the lifting component 600 drives the second lead screw 620 to rotate, thereby driving the second slider 630 to drive the moving platform 200 to rise and fall on the second lead screw 620, thus realizing the adjustment of the clamping height of the clamping component 400 on the moving platform 200.

[0051] In some embodiments, a first guide rod 640 is provided on both sides of the second lead screw 620, one end of the first guide rod 640 is connected to the moving component 300, and the other end is connected to the moving platform 200.

[0052] By setting first guide rods 640 on both sides of the second lead screw 620, the guiding and limiting functions of the first guide rods 640 are used to improve the lifting stability and smoothness of the mobile platform 200.

[0053] In some embodiments, the moving component 300 includes a moving motor 310, a moving slider 340, a moving plate, and a moving lead screw 320. The moving motor 310 is mounted on the worktable 100 of the screen printing machine and is connected to the moving lead screw 320. The moving slider 340 is mounted on the moving lead screw 320, the moving plate is mounted on the moving slider 340, and the lifting component 600 is mounted on the moving plate.

[0054] By using a moving motor 310 to drive the moving lead screw 320 to rotate, the moving slider 340 drives the moving plate and the lifting assembly 600 on the moving plate, thereby realizing the displacement of the auxiliary positioning fixture on the worktable 100.

[0055] In some embodiments, a second guide rod 350 is provided on both sides of the movable lead screw 320, with one end of the second guide rod 350 connected to the movable plate and the other end connected to the worktable 100.

[0056] By setting second guide rods 350 on both sides of the second lead screw 620, the guiding and limiting functions of the second guide rods 350 are used to improve the displacement stability and smoothness of the positioning auxiliary fixture.

[0057] In some embodiments, the rotating assembly 700 includes a telescopic cylinder 710 and a fixed rod 720, both of which are mounted on the lifting assembly 600 and are hinged to the moving platform 200. The telescopic cylinder 710 drives the moving platform 200 to rotate upward on the worktable 100.

[0058] By using a telescopic cylinder 710 and a fixed rod 720 as a rotating component 700, and fixing one end of the moving platform 200 with the fixed rod 720, the telescopic cylinder 710 pushes the moving platform 200 to rotate, thereby adjusting the angle of the moving platform 200 to adapt to printing in different directions.

[0059] In some embodiments, the first direction of the worktable 100 is the horizontal direction of the worktable 100, the second direction of the worktable 100 is the vertical direction of the worktable 100, and the third direction of the worktable 100 is the circumferential direction of the hinge rod between the telescopic cylinder 710 and the moving platform 200.

[0060] The first motor 510, the second motor 610, and the moving motor 310 described in this embodiment all use existing motors, preferably servo motors.

[0061] The telescopic cylinder 710 described in this embodiment uses a pneumatic cylinder or a hydraulic cylinder as described in the prior art.

[0062] The positioning auxiliary fixture for screen printing machines provided in this embodiment, compared with the prior art, uses a laser rangefinder installed on the moving platform 200. The detection end of the laser rangefinder faces the clamping assembly 400 to detect the distance between the substrate and the clamping assembly 400, thereby controlling the clamping assembly 400 to clamp and fix the substrate. The clamping end of the clamping assembly 400 is used to adapt the soft clamping part to clamp and fix substrates of different shapes, thereby improving the adaptability of the positioning auxiliary fixture. At the same time, in conjunction with the lifting assembly 600 and the rotating assembly 700, the substrate clamped by the positioning auxiliary fixture can be printed at different positions with adjustable angles, improving printing convenience.

[0063] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A positioning auxiliary fixture for a screen printing machine, mounted on the worktable (100) of the screen printing machine, characterized in that, The device includes a mobile platform (200) that moves relative to the worktable (100). A clamping assembly (400) and a driving assembly (500) are provided on the mobile platform (200). The clamping assembly (400) is connected to the driving assembly (500) in a transmission manner. The clamping end of the clamping assembly (400) is a soft clamping element. Under the drive of the driving assembly (500), the clamping assembly (400) moves relative to the mobile platform (200) along a first direction of the worktable (100). A laser rangefinder is provided on the mobile platform (200), the detection end of the laser rangefinder faces the clamping assembly (400) and is electrically connected to the clamping assembly (400); A lifting assembly (600) is connected to the mobile platform (200) and drives the mobile platform (200) to move in a second direction along the worktable (100); and a rotating assembly (700) is disposed on the lifting assembly (600) and drives the lifting assembly (600) and the mobile platform (200) to rotate in a third direction along the worktable (100).

2. The positioning auxiliary fixture for a screen printing machine as described in claim 1, characterized in that, The clamping assembly (400) includes a first clamping member (410) and a second clamping member (420). Both the first clamping member (410) and the second clamping member (420) are clamping ends of the clamping assembly (400). The first clamping member (410) is fixed on the mobile platform (200), and the second clamping member (420) is connected to the drive assembly (500) for transmission. Under the drive of the drive assembly (500), the second clamping member (420) moves closer to or away from the first clamping member (410).

3. The positioning auxiliary fixture for a screen printing machine as described in claim 2, characterized in that, The drive assembly (500) includes a first lead screw (520), a first slider (530), and a first motor (510). The first motor (510) is located on the side of the moving platform (200) opposite to the first clamping member (410). The first lead screw (520) is connected to the first motor (510) for transmission. The first slider (530) is sleeved on the first lead screw (520). The second clamping member (420) is located on the first slider (530). The second clamping member (420) moves closer to or away from the first clamping member (410) under the drive of the first motor (510).

4. The positioning auxiliary fixture for a screen printing machine as described in claim 3, characterized in that, The mobile platform (200) is provided with a first guide groove (540) extending along a first direction of the worktable (100), and a first guide block (560) is provided in the first guide groove (540). The first guide block (560) is connected to the second clamping member (420).

5. The positioning auxiliary fixture for a screen printing machine as described in any one of claims 1-4, characterized in that, A moving component (300) is provided at the bottom of the moving platform (200), and a lifting component (600) is provided on the moving component (300). The lifting component (600) includes a second motor (610), a second lead screw (620), and a second slider (630). The second motor (610) is located on the moving component (300), and a second lead screw (620) extending along a second direction of the worktable (100) is connected to the second motor (610). A second slider (630) is provided on the second lead screw (620), and the moving platform (200) is provided on the second slider (630). The moving platform (200) moves along the second direction of the worktable (100) under the drive of the second motor (610).

6. The positioning auxiliary fixture for a screen printing machine as described in claim 5, characterized in that, First guide rods (640) are provided on both sides of the second lead screw (620). One end of the first guide rod (640) is connected to the moving component (300), and the other end is connected to the moving platform (200).

7. The positioning auxiliary fixture for a screen printing machine as described in claim 6, characterized in that, The moving component (300) includes a moving motor (310), a moving slider (340), a moving plate, and a moving lead screw (320). The moving motor (310) is mounted on the worktable (100) of the screen printing machine and is connected to the moving lead screw (320) for transmission. The moving slider (340) is mounted on the moving lead screw (320), the moving plate is mounted on the moving slider (340), and the lifting component (600) is mounted on the moving plate.

8. The positioning auxiliary fixture for a screen printing machine as described in claim 7, characterized in that, A second guide rod (350) is provided on both sides of the movable lead screw (320). One end of the second guide rod (350) is connected to the movable plate, and the other end is connected to the worktable (100).

9. The positioning auxiliary fixture for a screen printing machine as described in any one of claims 1-4, characterized in that, The rotating assembly (700) includes a telescopic cylinder (710) and a fixed rod (720), both of which are mounted on the lifting assembly (600) and are hinged to the moving platform (200). The telescopic cylinder (710) drives the moving platform (200) to rotate upward on the worktable (100).

10. The positioning auxiliary fixture for a screen printing machine as described in claim 9, characterized in that, The first direction of the workbench (100) is the horizontal direction of the workbench (100), the second direction of the workbench (100) is the vertical direction of the workbench (100), and the third direction of the workbench (100) is the circumferential direction of the hinge rod between the telescopic cylinder (710) and the moving platform (200).

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