Laser stripping tool and method for shielded finished cable

Abstract

The present invention belongs to the field of finished cable insulation layer processing, and specifically relates to a laser wire stripping tool and method for finished shielded cables. The design idea of ​​the laser wire stripping tool for finished shielded cables is to place the wire in the tool slot, and the anti-static foam arched slot on the front pressure strip is pressed on the finished shielded cable, so as to ensure that the finished shielded cable is completely limited in the Y and Z directions and will not be damaged. The design idea of ​​the movement path of the laser beam in the described finished shielded cable laser stripping method is to design the movement path of the "I"-shaped laser beam through parameter adjustment and laser irradiation position setting, and combine the complete breakdown and non-breakdown of the insulation layer to achieve that when the outer insulation layer of the finished shielded cable is removed, the insulation layer of the inner conductor core is not damaged.

Description

Technical Field

[0001] The invention belongs to the field of finished cable insulation layer processing, and in particular relates to a laser wire stripping tool and method for shielded finished cables. Background Art

[0002] Shielded finished cables are increasingly used in computer products due to their good shielding effects and a wide variety of types.

[0003] Before welding the finished shielded cable, the outermost insulation layer of the wire needs to be removed without damaging the inner shielding layer and core wire. Currently, the outer insulation layer is removed by manual blade cutting, which requires high skill levels of personnel, has the risk of damaging the inner shielding layer and wire core, and has poor quality consistency and low production efficiency.

[0004] Once the wire shielding layer and the wire core are damaged, the shielding performance and electrical performance of the whole machine will be seriously affected. Laser wire stripping technology has been maturely applied to remove the insulation layer of ordinary high-temperature wires, but due to the looseness of the shielding layer, when the laser wire stripping technology is used to strip the outer insulation layer of the shielded finished cable, the insulation skin of the inner wire core is easily burned by the laser, and the stripping quality cannot be guaranteed.

[0005] At the same time, the wire harness needs to be sorted and pasted on the existing wire stripping tooling before laser stripping. This process is difficult and takes much longer than the laser stripping time, becoming a bottleneck in the efficiency of laser stripping. Summary of the invention

[0006] The present invention provides a laser wire stripping tool and method for finished shielded cables, so as to solve the problems of low efficiency and low quality in removing the outer insulation layer of the finished shielded cables.

[0007] To achieve the above object, the present invention proposes the following technical solutions:

[0008] A laser stripping tool for finished shielded cables, comprising a bottom plate, a front pressure strip, a front fixing block, a rear pressure strip and a rear fixing block;

[0009] A row of parallel slots is provided in the middle of the bottom plate, the slots are perpendicular to the edge of the bottom side and pass through the surface of the bottom plate;

[0010] A front fixing block and a rear fixing block are fixed on one side of the slot, and the rear fixing block and the front fixing block are located on the same side of the bottom plate;

[0011] One end of the front pressure strip is connected to the front fixing block, and the front pressure strip swings up and down with the end connected to the front fixing block as the origin;

[0012] One end of the rear pressure strip is connected to the rear fixing block, and the rear pressure strip swings up and down with the end connected to the rear fixing block as the origin.

[0013] Preferably, antistatic foam is provided on the surface of the front pressure strip in contact with the slot.

[0014] Preferably, it also includes a front stopper, wherein the front stopper and the front fixing block are located on the same side of the bottom plate and separated by a groove.

[0015] Preferably, a groove is provided on the front pressure strip, which cooperates and is fixed with the front stopper.

[0016] Preferably, it also includes a rear stopper, wherein the rear stopper and the rear fixing block are located on the same side of the bottom plate and separated by a groove.

[0017] Preferably, it further comprises a handle, with two ends of the handle respectively located on the fixed block and the rear stopper, and the handle is located on the outside of the bottom plate.

[0018] Preferably, a groove is provided on the rear pressure strip, which cooperates and is fixed with the rear stopper.

[0019] A method for laser stripping a shielded finished cable comprises the following steps:

[0020] Step 1: Lift the front and rear pressure strips, place the finished shielded cable in the slot on the bottom plate, and lower the front and rear pressure strips;

[0021] Step 2: Install the shielded finished cable laser stripping tool into the laser stripping equipment;

[0022] Step 3: Set the conductor to perform insulation treatment according to the laser beam movement path; the laser beam movement path includes a vertical cutting section and a circular cutting section. 1 cm from one end of the vertical cutting section, the laser just passes through the insulation layer, and this section is set as a solid line segment; the rest of the vertical cutting section does not pass through the insulation layer, and this section is set as a dotted line segment; the circular cutting section is located at one end of the vertical cutting section that does not pass through the insulation layer, and the circular shielding finished cable is around one circle, which is perpendicular to the vertical cutting section, and the laser does not pass through the insulation layer, and this section is set as a dotted line segment;

[0023] Step 4: Remove the laser wire stripping tool of the finished shielded cable by the handle, and use wire cutters and chip pliers to process the finished shielded cable to obtain the core wire of the finished shielded cable.

[0024] Preferably, in step 4, the specific process of using wire cutters and chip retaining pliers to process the finished shielded cable is as follows:

[0025] Use wire cutters to cut the wire end from the solid line segment. At this time, the outer insulation layer of the finished shielded cable is cut into two halves. Hold both sides of the outer insulation layer with both hands and pull it to pull the outer insulation layer of the finished shielded cable along the dotted line segment to the dotted line segment. Use wire cutters to cut off the outer insulation layer of the finished shielded cable along the dotted line segment.

[0026] Preferably, in step 2, the antistatic foam on the front pressure strip fits tightly with the finished shielded cable.

[0027] The present invention is beneficial in that:

[0028] Slots are set on the laser stripping tool for finished shielded cables to achieve centralized processing of multiple cables, and the front pressure bar moves up and down to achieve rapid installation of cables.

[0029] The laser stripping method for finished shielded cables proposes to design an "I"-shaped laser beam movement path, combining complete breakdown and non-breakdown of the insulation layer, so that when the outer insulation layer of the finished shielded cable is removed, the insulation layer of the inner conductor core is not damaged, thereby ensuring the quality of the finished product.

[0030] When used with anti-static foam, it meets the anti-static requirements of QJ2711A "Technical Requirements for Installation Process of Electrostatic Discharge Sensitive Devices" to ensure the safety of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0032] Figure 1 3D isometric view of the laser stripping tooling for shielded finished cables;

[0033] Figure 2 Schematic diagram of the laser beam movement path.

[0034] In the figure, 1 is the bottom plate; 2 is the front block; 31 is the anti-static foam; 32 is the front pressure strip; 4 is the shielded finished cable; 5 is the front fixing block; 6 is the rear block; 7 is the rear pressure strip; 8 is the handle; 9 is the rear fixing block; 10 is the movement path of the laser; 101 is the realization segment; 102 is the dotted line segment; 103 is the dotted line segment; 14 is the vaporization mark, 15 is the shielding net, and 16 is the outer insulation layer. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0036] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention.

[0037] Embodiment 1:

[0038] See also Figure 1As shown, the present invention provides a shielded finished cable laser stripping tool, which specifically includes a bottom plate 1, a front stopper 2, an antistatic foam 31, a front pressure strip 32, a shielded finished cable 4, a front fixing block 5, a rear stopper 6, a rear pressure strip 7, a handle 8, and a rear fixing block 9;

[0039] A row of parallel grooves is provided in the middle of the base plate 1. The grooves are perpendicular to the edge of the bottom side and pass through the surface of the base plate for placing the finished shielded cables 4, thereby realizing batch processing of the finished shielded cables 4. The use of parallel grooves ensures batch processing and consistency of the outer insulation layer 16 of the finished shielded cables.

[0040] A front fixing block 5 and a rear fixing block 9 are fixed on one side of the slot, and a front stopper 2 and a rear stopper 6 are fixed on the other side. The front fixing block 5, the rear fixing block 9, the front stopper 2 and the rear stopper 6 are respectively located at the four corners of the bottom plate 1, wherein the front fixing block 5 cooperates with the front stopper 2, and a front pressure strip 32 is provided on the front fixing block 5, and the front pressure strip 32 can be swung up and down through the connection of the front fixing block 5, and a groove is provided on the front pressure strip 32, which is used to fix the front pressure strip 32 on the front stopper 2 when pressing down, so as to press the shielded finished cable; the rear fixing block 9 cooperates with the rear stopper 6, and a rear pressure strip 7 is provided on the rear fixing block 9, and the rear pressure strip 7 can be swung up and down through the connection of the rear fixing block 6, and a groove is provided on the rear pressure strip 7, which is used to fix the rear pressure strip 7 on the rear stopper 6 when pressing down, so as to press the shielded finished cable.

[0041] The front pressing strip 32 is provided with an antistatic foam 31 . When the front pressing strip 32 is pressed downward, the antistatic foam 31 fits the finished shielded cable 4 .

[0042] The two ends of the handle 8 are respectively located on the fixing block 9 and the rear stopper 6 , and the handle 8 is located outside the bottom plate 1 , which ensures that the tooling can be quickly installed and removed on the laser wire stripping device.

[0043] The above equipment is processed with artificial stone material and is combined with anti-static foam 31 to meet the anti-static requirements of QJ2711A "Technical Requirements for Installation Process of Electrostatic Discharge Sensitive Devices".

[0044] Embodiment 2:

[0045] A method for laser stripping a shielded finished cable, specifically comprising:

[0046] Lift the front pressure strip 32 and the rear pressure strip 7, place the finished shielded cable 4 in the groove on the base plate 1, lower the front pressure strip 32 and the rear pressure strip 7 so that the anti-static foam 31 fits tightly against the finished shielded cable 4, ensuring that the finished shielded cable 4 is fully limited in the Y and Z directions and will not be damaged.

[0047] The groove at the front end of the front pressure strip 32 is clamped on the front block 2, and the groove at the front end of the rear pressure strip 7 is clamped on the rear block 6. The wire is loaded into the laser wire stripping device using the handle 8, and the wire is set to be treated with the insulation layer according to the laser beam movement path 10.

[0048] like Figure 2 As shown, the laser beam movement path 10 includes a vertical cutting segment and a circular cutting segment. 1 cm from one end of the vertical cutting segment, the laser just passes through the insulation layer, and this segment is set as a solid line segment 101; the rest of the vertical cutting segment does not pass through the insulation layer, and this segment is set as a dotted line segment 102; the circular cutting segment is located at one end of the vertical cutting segment that does not pass through the insulation layer, and the circular shielding finished cable is around one circle, which is perpendicular to the vertical cutting segment, and the laser does not pass through the insulation layer, and this segment is set as a dotted line segment 103.

[0049] Figure 2 In the figure, 14 is a vaporization mark, which is a deep mark left by the laser, 15 is a shielding net, and 16 is an outer insulating layer.

[0050] After the insulation layer processing is completed, hold the handle 8, remove the tooling, lift the front pressure strip 32 and the rear pressure strip 7, take out the shielded finished cable 4, use wire cutters to cut the wire end from the solid line segment 101 of the laser beam movement path 10, at this time, the outer insulation layer 16 of the shielded finished cable has been cut into two halves, hold both sides of the outer insulation layer 16 of the wire with both hands and pull, pull the outer insulation layer 16 of the shielded finished cable along the dotted line segment 102 to the position of the dotted line segment 103, and use chip-retaining pliers to cut off the outer insulation layer 16 of the shielded finished cable along the dotted line segment 103.

[0051] It has been verified that the shielded finished cable was installed and fixed with the tooling designed under the concept of the present invention, the insulation layer was cut under the laser motion path designed under the concept of the present invention, and a magnifying glass was used to check that the core wire and the insulation layer of the shielded finished cable 4 were not damaged, with high production efficiency, simple operation and good consistency.

[0052] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A method for laser stripping of finished shielded cables, characterized in that: Based on a shielded finished cable laser stripping tool, the following steps are included: Step 1: Lift the front pressure strip (32) and the rear pressure strip (7), place the finished shielded cable (4) in the slot of the bottom plate (1), and lower the front pressure strip (32) and the rear pressure strip (7); Step 2: Install the shielded finished cable laser stripping tool into the laser stripping equipment; Step 3: Arrange the conductor to perform insulation treatment according to the laser beam movement path (10); the laser beam movement path (10) includes a vertical cutting section and a circular cutting section. 1 cm from one end of the vertical cutting section, the laser just passes through the insulation layer, and this section is set as a solid line segment (101); the rest of the vertical cutting section does not pass through the insulation layer, and this section is set as a dotted line segment (102); the circular cutting section is located at one end of the vertical cutting section that does not pass through the insulation layer, and the circular shielding finished cable is around one circle, which is perpendicular to the vertical cutting section, and the laser does not pass through the insulation layer, and this section is set as a dotted line segment (103); Step 4: Remove the shielded finished cable laser stripping tool through the handle (8), and use wire cutters and chip-retaining pliers to process the shielded finished cable (4) to obtain the core wire of the shielded finished cable (4); The laser stripping tool for finished shielded cables comprises a bottom plate (1), a front pressure strip (32), a front fixing block (5), a rear pressure strip (7) and a rear fixing block (9); A row of parallel slots is provided in the middle of the bottom plate (1), the slots are perpendicular to the edge of the bottom side and pass through the surface of the bottom plate; A front fixing block (5) and a rear fixing block (9) are fixed on one side of the slot, and the rear fixing block (9) and the front fixing block (5) are located on the same side of the bottom plate (1); One end of the front pressure strip (32) is hinged to the front fixing block (5), and the front pressure strip (32) can swing up and down with the end connected to the front fixing block (5) as the origin; One end of the rear pressure strip (7) is hinged to the rear fixing block (9), and the rear pressure strip (7) can swing up and down with the end connected to the rear fixing block (9) as the origin.

2. A method for laser stripping a shielded finished cable as claimed in claim 1, characterized in that: In step 4, use wire cutters and shaving pliers to process the shielded finished cable (4). The specific process is as follows: Use wire cutters to cut off the wire end from the solid line segment (101). At this time, the outer insulation layer (16) of the finished shielded cable (4) is cut into two halves. Hold the two sides of the outer insulation layer (16) with both hands and pull it to pull the outer insulation layer (16) of the finished shielded cable (4) along the dotted line segment (102) to the position of the dotted line segment (103). Use cutting pliers to cut off the outer insulation layer (16) of the finished shielded cable (4) along the dotted line segment (103).

3. A method for laser stripping a shielded finished cable as claimed in claim 1, characterized in that: In step 2, the antistatic foam (31) on the front pressure strip (32) is tightly fitted to the shielded finished cable (4).

4. A method for laser stripping a shielded finished cable as claimed in claim 1, characterized in that: Antistatic foam (31) is provided on the surface of the front pressure strip (32) that contacts the slot.

5. A method for laser stripping a shielded finished cable as claimed in claim 1, characterized in that: It also includes a front stopper (2), the front stopper (2) and the front fixing block (5) are located on the same side of the bottom plate (1) and are separated by a groove in between.

6. A method for laser stripping a finished shielded cable as claimed in claim 5, characterized in that: The front pressure strip (32) is provided with a groove which cooperates with and is fixed to the front stopper (2).

7. A method for laser stripping a shielded finished cable as claimed in claim 1, characterized in that: It also includes a rear stopper (6), which is located on the same side of the bottom plate (1) as the rear fixing block (9) and is separated by a groove in between.

8. A method for laser stripping a finished shielded cable as claimed in claim 7, characterized in that: It also includes a handle (8), with two ends of the handle (8) respectively located on the rear fixing block (9) and the rear stopper (6), and the handle (8) is located outside the bottom plate (1).

9. A method for laser stripping a finished shielded cable as claimed in claim 7, characterized in that: A groove is provided on the rear pressure strip (7) and is matched and fixed with the rear stopper (6).

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