A workpiece positioning mechanism

Abstract

This utility model provides a workpiece positioning mechanism, relating to the field of workpiece positioning technology. It includes an operating table with a rectangular mounting groove extending through it. A bearing plate is slidably mounted inside the rectangular mounting groove, and two clamping plates are symmetrically slidably mounted on the top of the bearing plate. A vertical threaded shaft is rotatably suspended at the bottom center of the bearing plate, and a threaded ring is threaded onto the vertical threaded shaft. Two connecting rods are symmetrically rotatably connected between the threaded ring and the two clamping plates. A threaded push shaft is threaded through a short sidewall of the rectangular mounting groove, and the first end of the threaded push shaft is rotatably connected to the bearing plate. A U-shaped transmission frame is fixed to the bottom of the clamping plates, and two transverse track grooves are symmetrically extending through the bearing plate. This positioning mechanism can simultaneously meet the need for easy one-time tightening and loosening of the workpiece by synchronously driving the two clamping plates, while also meeting the need for offset engraving processing involving lateral adjustment of the clamped workpiece. It is flexible in operation and has good practicality.

Description

Technical Field

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

[0002] Laser marking machines emit high-energy-density laser beams that instantly act on the surface of workpieces, causing the surface material to rapidly vaporize or undergo a chemical reaction that changes color. This allows for the precise marking of various exquisite patterns, clear text, and complex symbols. Laser marking machines are widely used in many fields such as electronic components, automotive parts, medical devices, and packaging. To avoid displacement caused by vibrations during worker operation or machine operation, which could affect marking accuracy, it is necessary to design a workpiece positioning mechanism to stably position the workpiece.

[0003] Some existing positioning mechanisms use two clamping plates to clamp and position the workpiece to be marked. In order to improve the efficiency of tightening and loosening the workpiece, most of them are set to tighten and loosen in a way that can be driven by synchronous sliding. However, such positioning mechanisms cannot adjust the position of the workpiece after it is clamped. This means that existing positioning mechanisms cannot adjust the position of the workpiece after clamping and positioning while being able to tighten and loosen the two clamping plates synchronously. As a result, the flexibility and practicality of operation are not good. Utility Model Content

[0004] In view of this, the present invention provides a workpiece positioning mechanism to solve the problem that existing positioning mechanisms cannot simultaneously drive the tightening and loosening of two clamping plates, while also adjusting the position of the workpiece after clamping and positioning, resulting in poor operational flexibility and practicality.

[0005] The technical solution proposed by this utility model is as follows: a workpiece positioning mechanism, specifically including an operating table, on which a rectangular mounting groove is opened through; a bearing plate is slidably installed inside the rectangular mounting groove, and two clamping plates are symmetrically slidably installed at the top of the bearing plate; a vertical threaded shaft is rotatably suspended at the bottom center position of the bearing plate, and a threaded ring is screwed onto the vertical threaded shaft, and two connecting rods are symmetrically rotatably connected between the threaded ring and the two clamping plates; a threaded push shaft is threaded through a short side wall of the rectangular mounting groove, and the first end of the threaded push shaft is rotatably connected to the bearing plate.

[0006] Furthermore, a U-shaped transmission frame is fixedly connected to the bottom end of the clamping plate, and two horizontal track grooves are symmetrically opened through the bearing plate. The two vertical side rods of the U-shaped transmission frame are correspondingly slidably engaged with the two horizontal track grooves.

[0007] One end of the connecting rod is rotatably connected to the outer circumference of the threaded ring, and the other end is rotatably connected to the longitudinal side shaft of the U-shaped transmission frame.

[0008] Furthermore, a limiting plate is fixedly connected to one side of the clamping plate, and limiting plates are fixedly connected to the two vertical side rods of the U-shaped transmission frame. The two limiting plates are slidably attached to the upper and lower ends of the bearing plate, respectively.

[0009] Furthermore, the two long sides of the bearing plate are formed with sliding strips, and two horizontal track grooves are symmetrically opened on the two long side walls of the rectangular mounting groove, with the sliding strips slidingly engaging with the horizontal track grooves.

[0010] Furthermore, the workpiece to be marked is placed on the bottom of the support plate and clamped between the two clamping plates;

[0011] A laser marking head is fixedly installed at the center of the upper part of the operating table, and the laser marking head is directly opposite the workpiece.

[0012] Furthermore, two H-shaped frames are symmetrically welded to the bottom ends of the two short sides of the operating table.

[0013] The workpiece positioning mechanism provided by this utility model has the following beneficial effects:

[0014] 1. Two clamping plates, two U-shaped transmission frames, two connecting rods, and a threaded ring are connected to form a double-crank slider mechanism. Through this mechanism, the forward and reverse knobs can drive the vertical threaded shaft to slide the two clamping plates in opposite directions, simultaneously tightening or loosening the workpiece in one go. This eliminates the trouble of having to slide the two clamping plates step by step to tighten or loosen the workpiece, making it convenient to operate and improve the tightening and loosening efficiency of the workpiece.

[0015] Second, the carrier plate, through the sliding engagement of the slide bar and the slide groove, can drive the workpiece positioned at its top to slide along the length of the rectangular mounting groove, adjust the position of the workpiece in the lateral direction, and make the middle part of the workpiece deviate from the laser marking head to meet the processing requirements of offset marking.

[0016] Third, this positioning mechanism can meet the needs of simultaneously driving two clamping plates to easily tighten and loosen the workpiece in one go, while also meeting the needs of offset engraving processing for lateral adjustment of the clamped workpiece. It is flexible in operation and has good practicality. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0019] In the attached diagram:

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

[0021] Figure 2 A bottom-side view of the entire utility model is shown;

[0022] Figure 3 A schematic diagram showing the disassembled state of the support plate in this utility model is shown;

[0023] Figure 4 A bottom-view schematic diagram of the support plate in this utility model is shown;

[0024] Figure 5 The diagram shows the disassembled state of the clamping plate and the vertical threaded shaft in this utility model.

[0025] List of reference numerals in the attached diagram:

[0026] 1. Operating table; 101. H-shaped frame; 102. Rectangular mounting slot; 1021. Slide groove; 103. Vertical threaded shaft; 1031. Threaded ring;

[0027] 2. Laser marking head;

[0028] 3. Support plate; 301. Horizontal track groove; 302. Threaded push shaft; 303. Slide bar;

[0029] 4. Clamping plate; 401. Limiting plate; 402. U-shaped transmission frame; 4021. Connecting rod;

[0030] 5. Workpiece. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this 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, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] Please refer to Figures 1 to 5 Example 1:

[0033] This embodiment proposes a workpiece positioning mechanism, including an operating table 1, on which a rectangular mounting groove 102 is provided; a bearing plate 3 is slidably installed inside the rectangular mounting groove 102, and two clamping plates 4 are symmetrically slidably installed at the top of the bearing plate 3; a vertical threaded shaft 103 is rotatably suspended at the bottom center of the bearing plate 3, and a threaded ring 1031 is threaded on the vertical threaded shaft 103; two connecting rods 4021 are symmetrically rotatably connected between the threaded ring 1031 and the two clamping plates 4; a threaded push shaft 302 is threaded through a short side wall of the rectangular mounting groove 102, and the first end of the threaded push shaft 302 is rotatably connected to the bearing plate 3.

[0034] Preferably, a U-shaped transmission frame 402 is fixedly connected to the bottom end of the clamping plate 4, and two horizontal track grooves 301 are symmetrically opened through the bearing plate 3. The two vertical side rods of the U-shaped transmission frame 402 are correspondingly slidably engaged with the two horizontal track grooves 301. One end of the connecting rod 4021 is rotatably connected to the outer circumference of the threaded ring 1031, and the other end is rotatably connected to the longitudinal side shaft of the U-shaped transmission frame 402.

[0035] Preferably, a limiting plate 401 is fixedly connected to one side of the clamping plate 4, and a limiting plate 401 is fixedly connected to the two vertical side rods of the U-shaped transmission frame 402. The two limiting plates 401 are slidably attached to the upper and lower ends of the bearing plate 3, respectively.

[0036] Preferably, the two long sides of the bearing plate 3 are formed with slide bars 303, and two horizontal track grooves 301 are symmetrically opened on the two long side walls of the rectangular mounting groove 102, and the slide bars 303 and the horizontal track grooves 301 slide in cooperation.

[0037] Implementation 2: This embodiment is based on Implementation 1, but with the following additions:

[0038] The workpiece 5 to be marked is placed on the bottom of the support plate 3 and clamped between two clamping plates 4; a laser marking head 2 is fixedly installed at the center of the upper part of the operating table 1, and the laser marking head 2 is directly opposite the workpiece 5; two H-shaped frames 101 are symmetrically welded to the bottom of the two short sides of the operating table 1.

[0039] The working principle, specific details, implementation steps, functions and interrelationships of the features in the above embodiments, and the roles these features play in realizing this technical solution will be described and explained in detail below:

[0040] In use, first place the workpiece 5 to be marked on the top of the support plate 3, then clamp and position the workpiece 5 with two clamping plates 4, then start the laser marking head 2 to engrave the trademark or other mark and number on the designated position on the top of the workpiece 5.

[0041] It is worth noting that the installation and fixing structure, working principle, control system of laser marking head 2, and control principle of laser marking head 2 are existing technologies for technicians engaged in equipment electrical design, modification, upgrading and testing in this field, and therefore will not be elaborated here.

[0042] Two clamping plates 4, two U-shaped transmission frames 402, two connecting rods 4021, and a threaded ring 1031 are connected together to form a double crank slider mechanism. Through this mechanism, the forward and reverse knobs can push the vertical threaded shaft 103 to drive the two clamping plates 4 to slide towards or away from each other, and simultaneously tighten or loosen the workpiece 5 at once. This eliminates the trouble of having to slide the two clamping plates 4 step by step to tighten or loosen the workpiece 5, making it convenient to operate and use, and helping to improve the tightening and loosening efficiency of the workpiece 5.

[0043] Since the two clamping plates 4 can only be driven synchronously to tighten and loosen the workpiece 5, they can only clamp the workpiece 5 in the center and position it on the center part of the support plate 3, with the middle part of the workpiece 5 directly facing the laser marking head 2. They cannot adjust the position of the workpiece 5 in the lateral direction. This means that the laser marking head 2 can only engrave the mark in the middle position of the workpiece 5. However, under certain working conditions, there is a need for offset marking. The support plate 3, through the sliding cooperation between the slide bar 303 and the slide groove 1021, can drive the workpiece 5 positioned at its top to slide along the length direction of the rectangular mounting groove 102, adjusting the position of the workpiece 5 in the lateral direction, so that the middle part of the workpiece 5 is offset from the laser marking head 2, thus meeting the processing requirements of offset marking.

[0044] Thus, this positioning mechanism can meet the need for simultaneous driving of two clamping plates 4 to easily tighten and loosen the workpiece 5 in one go, while also meeting the need for offset engraving processing of the clamped workpiece 5 by lateral adjustment. It is flexible in operation and has good practicality.

[0045] The upper and lower limiting plates 401 can block and limit the U-shaped transmission frame 402 in the horizontal track groove 301, and implement blocking and swing limiting of the U-shaped transmission frame 402 to prevent the U-shaped transmission frame 402 from swinging and deflecting up and down when it is driven to slide along the horizontal track groove 301, which helps the sliding stability of the U-shaped transmission frame 402 and the clamping plate 4.

[0046] The following points should be noted in this article:

[0047] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0048] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0049] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A workpiece positioning mechanism, comprising an operating table (1), wherein a rectangular mounting groove (102) is provided through the operating table (1); characterized in that A bearing plate (3) is slidably installed inside the rectangular mounting groove (102), and two clamping plates (4) are symmetrically slidably installed at the top of the bearing plate (3); a vertical threaded shaft (103) is rotatably suspended at the bottom center of the bearing plate (3), and a threaded ring (1031) is screwed onto the vertical threaded shaft (103). Two connecting rods (4021) are symmetrically rotatably connected between the threaded ring (1031) and the two clamping plates (4); a threaded push shaft (302) is threaded through the middle part of a short sidewall of the rectangular mounting groove (102), and the first end of the threaded push shaft (302) is rotatably connected to the bearing plate (3).

2. A workpiece positioning mechanism according to claim 1, wherein The bottom end of the clamp (4) is fixedly connected to a U-shaped transmission frame (402), and two horizontal track grooves (301) are symmetrically opened through the bearing plate (3). The two vertical side rods of the U-shaped transmission frame (402) are corresponding to the two horizontal track grooves (301) and slide through them. One end of the connecting rod (4021) is rotatably connected to the outer circumference of the threaded ring (1031), and the other end is rotatably connected to the longitudinal side shaft of the U-shaped transmission frame (402).

3. A workpiece positioning mechanism according to claim 1, wherein A limiting plate (401) is fixedly connected to one side of the clamping plate (4), and two vertical side rods of the U-shaped transmission frame (402) are fixedly connected to the limiting plates (401). The two limiting plates (401) are slidably attached to the upper and lower ends of the bearing plate (3).

4. The workpiece positioning mechanism of claim 1, wherein, The two long sides of the bearing plate (3) are formed with slide bars (303), and two horizontal track grooves (301) are symmetrically opened on the two long side walls of the rectangular mounting groove (102). The slide bars (303) and the horizontal track grooves (301) slide in cooperation.

5. The workpiece positioning mechanism of claim 1, wherein, The workpiece (5) to be marked is placed on the bottom of the support plate (3) and clamped between the two clamping plates (4); A laser marking head (2) is fixedly installed at the center of the upper part of the operating table (1), and the laser marking head (2) is directly opposite the workpiece (5).

6. The workpiece positioning mechanism of claim 1, wherein, The bottom of the two short sides of the operating table (1) is symmetrically welded with two H-shaped frames (101).

Images