Cable connection structure and laser processing head

Abstract

The utility model discloses a cable connecting structure, belongs to the technical field of laser processing devices, and particularly relates to a cable connecting structure and a laser processing head, which comprise a main circuit board, a connecting seat, an injection molding part, a special-shaped circuit board and a cable, according to the utility model, the cable is connected with the special-shaped circuit board, the special-shaped circuit board is connected with the main circuit board through the contacts, the special-shaped circuit board is completely wrapped in the injection molding part and is formed by injection molding, and the cable and the injection molding part are fused together and are assembled through the bolts. Contacts on the upper face and the lower face of the connecting base are pressed tightly, most of external force is borne and transmitted by the cable, the injection molding piece, the special-shaped circuit board, the bolt and the main circuit board, the wire harness and the connecting base are only influenced by a small part of external force, and therefore compared with a traditional plastic terminal, connection is firmer, and extremely high tensile and anti-seismic performance is achieved only by occupying a small space.

Description

TECHNICAL FIELD

[0001] The utility model belongs to laser processing device technical field, concretely relates to a cable connecting structure and laser processing head. BACKGROUND

[0002] The existing laser processing device, such as manual laser welding head, will be built-in circuit board, for example, some with screen, circuit board can be directly connected to the temperature control sensor inside the welding gun, and the screen displays temperature information, or some with internal galvanometer motor, circuit board can be directly connected to the galvanometer motor, and button pressing trigger motor control switch is arranged on the shell, in these laser equipment, circuit board is added to expand the function, but the traditional laser welding machine cable adopts plastic terminal, and the terminal will be loose after a period of working time, and the cable connection is not firm, and the cable connection has the defects of large space occupation, low tensile strength and weak shock resistance. UTILITY MODEL CONTENT

[0003] The utility model discloses a cable connecting structure and laser processing head, and solves the above-mentioned problems.

[0004] Technical scheme:

[0005] First, a cable connecting structure includes: main circuit board, connecting seat, injection molding piece, special-shaped circuit board and cable;

[0006] The connecting seat is welded on the top of the main circuit board, the cable is welded with the input end of the special-shaped circuit board, the top of the connecting seat is provided with a plurality of connecting contacts connected with the control input end of the circuit board, and the output end of the special-shaped circuit board is provided with a plurality of corresponding contacts in contact with the connecting contacts on the top of the connecting seat.

[0007] The special-shaped circuit board is fixedly arranged on the bottom of the injection molding piece, a plurality of position corresponding through holes are arranged on the main circuit board, the special-shaped circuit board and the injection molding piece, and the injection molding piece and the special-shaped circuit board are integrally detachably installed on the top of the main circuit board through screw bolts and through holes.

[0008] In further embodiments, the connecting contact of the connecting seat is a metal spring piece, and the shape of the connecting contact is a hemispherical body.

[0009] The lower side of the connecting contact is provided with a metal spring piece, and the main circuit board is in circuit conduction.

[0010] In further embodiments, the welding place of the cable and the special-shaped circuit board is provided with solid-state high-temperature insulation glue for glue joint treatment.

[0011] In further embodiments, the side of the injection molding piece is provided with an integrally formed extension, the extension is in arc shape, and the opening direction is towards the main circuit board.

[0012] In further embodiments, the injection molding part and the special-shaped circuit board are injection molded, the special-shaped circuit board is embeddedly installed at the bottom of the injection molding part, and the bottom of the special-shaped circuit board is flush with the bottom of the injection molding part.

[0013] In further embodiments, the through holes on the special-shaped circuit board are provided at least two, and the two through holes are provided at opposite diagonal positions of the conduction area of the special-shaped circuit board.

[0014] In further embodiments, the cable comprises an outer sheath, a shielding layer and an internal wire harness;

[0015] The wire harness is located in the outer sheath, and the shielding layer is filled between the wire harness and the outer sheath;

[0016] The wire harness and the input end of the special-shaped circuit board are welded, and the outer sheath is injection molded at the connection part of the injection molding part.

[0017] In further embodiments, a foolproof groove is reserved on one side of the connecting seat, and a foolproof block is arranged at the bottom of the injection molding part and matched with the foolproof groove.

[0018] Second aspect: a laser processing head, especially a processing head for laser welding, laser cleaning, laser cutting and laser marking, the laser processing head has the above-mentioned cable connection structure; wherein, the laser processing head further comprises a main body and a shell;

[0019] The bolt cooperates with the through holes on the main circuit board, the special-shaped circuit board and the injection molding part to fix and install the circuit board on the main body, at least a switch for controlling the start and stop of the laser is arranged on the circuit board, and the shell is fixedly installed on the main body and covers the circuit board.

[0020] Beneficial effects: the cable is connected with the special-shaped circuit board, the special-shaped circuit board is connected with the main circuit board through the contact, the special-shaped circuit board is completely wrapped in the injection molding part and injection molded, and the cable and the injection molding part are fused together, the assembly is completed through the bolt, the contact on the upper and lower surfaces of the connecting seat is pressed tightly, most of the external force is borne and transmitted by the cable, the injection molding part, the special-shaped circuit board, the bolt and the main circuit board, and only a small part of the external force affects the wire harness and the connecting seat, so that the utility model is more firm than the traditional plastic terminal connection, only a small amount of space is occupied, and the anti-tension and anti-seismic performance is extremely strong. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the isometric view of the utility model.

[0022] Figure 2 is the front view of the utility model.

[0023] Figure 3 is a sectional view of the utility model.

[0024] Figure 4 is a back view of the utility model.

[0025] Figure 5 is a front view of the main circuit board and connecting seat of the utility model.

[0026] Figure 6 is a left view of the main circuit board and connecting seat of the utility model.

[0027] Figure 7 is a front view of the injection molding piece of the utility model.

[0028] Figure 8 is a back view of the injection molding piece of the utility model.

[0029] Figure 9 is a left view of the injection molding piece of the utility model.

[0030] Figure 10 is a front view of the special-shaped circuit board of the utility model.

[0031] Figure 11 is a back view of the special-shaped circuit board of the utility model.

[0032] Figure 12 is a schematic view of the cable of the utility model.

[0033] Figure 13 is a schematic view of the laser processing head of the utility model.

[0034] Reference signs: main circuit board 1, connecting seat 2, injection molding piece 3, special-shaped circuit board 4, cable 5, connecting contact 20, corresponding contact 40, through hole 6, metal spring 21, extension 30, anti-fool groove 10, anti-fool block 32, outer sheath 50, shielding layer 51, internal wire harness 52, main body 7, shell 8. DETAILED DESCRIPTION

[0035] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0036] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element must have a particular orientation, construct and operate in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] Embodiment 1:

[0039] A cable 5 connecting structure, comprising: a main circuit board 1, a connecting seat 2, an injection molding 3, a special-shaped circuit board 4 and a cable 5.

[0040] In one embodiment, as shown in Figures 1 to 3 The connecting seat 2 is welded on the top of the main circuit board 1, the cable 5 is welded with the input end of the special-shaped circuit board 4, the top of the connecting seat 2 is provided with a plurality of connecting contacts 20 connected with the input end of the circuit board, and the output end of the special-shaped circuit board 4 is provided with a plurality of corresponding contacts 40 in contact connection with the connecting contacts 20 on the top of the connecting seat 2.

[0041] In one embodiment, as shown in Figures 1 to 3 The special-shaped circuit board 4 is fixedly arranged on the bottom of the injection molding 3, the main circuit board 1, the special-shaped circuit board 4 and the injection molding 3 are provided with a plurality of position corresponding through holes 6, and the injection molding 3 and the special-shaped circuit board 4 are integrally detachably installed on the top of the main circuit board 1 through bolt and through hole 6 cooperation.

[0042] In one embodiment, as shown in Figures 5 to 6 The connecting seat 2 is welded on the pad on the top of the main circuit board 1, and the connecting contact 20 is in the shape of a hemisphere.

[0043] The lower part of the connecting contact 20 is provided with a metal spring 21, and the connecting seat 2 is in circuit conduction with the main circuit board 1 through the metal spring 21.

[0044] The metal spring 21 and the metal elastic sheet can improve the anti-vibration performance of the overall connecting structure. The metal elastic sheet is an elastic member, and is depressed when the injection molding part 3 and the special-shaped circuit board 4 are matched with the connecting seat 2 and the main circuit board 1, and rebounds in the opposite direction.

[0045] In one embodiment, as shown in Figures 5 to 6 The welding position of the cable 5 and the special-shaped circuit board 4 is provided with a solid high-temperature-resistant insulating glue for cementing treatment, so as to realize welding sealing.

[0046] In one embodiment, as shown in Figures 7 to 9 The side surface of the injection molding part 3 is provided with an integrally formed extension 30, and the extension 30 is in an arc shape.

[0047] The extension 30 is in an arc shape and is used for fixing other wire harnesses.

[0048] In one embodiment, as shown in Figures 7 to 11 The injection molding part 3 and the special-shaped circuit board 4 are formed by injection molding, the special-shaped circuit board 4 is embedded in the bottom of the injection molding part 3, and the bottom of the special-shaped circuit board 4 is flush with the bottom of the injection molding part 3.

[0049] In one embodiment, as shown in Figures 1 to 11 The through hole of the special-shaped circuit board is provided with at least two through holes, and the two through holes are arranged at the diagonal positions of the conduction area of the special-shaped circuit board.

[0050] In one embodiment, as shown in Figure 12 The cable 5 includes an outer sheath 50, a shielding layer 51 and an internal wire harness 52.

[0051] The wire harness is located in the outer sheath 50, and the shielding layer 51 is filled between the wire harness and the outer sheath 50.

[0052] The wire harness and the input end of the special-shaped circuit board 4 are welded, and the outer sheath 50 and the injection molding part 3 are injection molded at the connecting position.

[0053] In one embodiment, as shown in Figures 4 to 9 The main circuit board 1 is located on one side of the connecting seat 2 and is provided with a fool-proof groove 10, the bottom of the injection molding part 3 is provided with a fool-proof block 32 matched with the above-mentioned fool-proof groove 10, and the fool-proof block 32 is located in the fool-proof groove 10 during installation, so as to prevent installation errors during installation.

[0054] In one embodiment, as shown in Figures 1 to 9As shown, one end of the injection molding piece 3 is provided with an injection molding irregular rectangular structure hole for installing a cable 5, the shape of the irregular rectangular structure hole is a complete connected inscribed circle and the diameter of the inscribed circle is greater than the diameter of the cable 5.

[0055] Embodiment 2:

[0056] A laser processing head, in particular, a processing head for laser welding, laser cleaning, laser cutting and laser marking, the laser processing head has the cable 5 connecting structure described above; wherein, as Figure 13 As shown, the laser processing head further comprises a main body 7 and a shell 8;

[0057] The bolt cooperates with the through hole 6 on the main circuit board 1, the special-shaped circuit board 4 and the injection molding piece 3 to fixedly install the circuit board on the main body 7, at least a switch for controlling the start and stop of the laser is arranged on the circuit board, and the shell 8 is fixedly installed on the main body 7 and covers the circuit board.

[0058] Obviously, the above embodiment is only an example for clearly illustrating, but not limit the embodiments. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A cable connection structure, characterized in that, It comprises: The main circuit board, the connecting seat, the injection molding part, the special-shaped circuit board and the cable; The connecting seat is welded on the top of the main circuit board, the cable is welded with the input end of the special-shaped circuit board, the top of the connecting seat is provided with a plurality of connecting contacts connected with the control input end of the circuit board, and the output end of the special-shaped circuit board is provided with a plurality of corresponding contacts in contact with the connecting contacts on the top of the connecting seat; The special-shaped circuit board is fixedly arranged on the bottom of the injection molding part, a plurality of position corresponding through holes are arranged on the main circuit board, the special-shaped circuit board and the injection molding part, and the injection molding part and the special-shaped circuit board are integrally detachably installed on the top of the main circuit board through the cooperation of the bolts and the through holes.

2. The cable connection structure according to claim 1, wherein The connecting contact is in the shape of a hemisphere; The connecting contact is provided with a metal spring below, and the connecting seat is in conduction with the main circuit board through the metal spring.

3. The cable connection structure according to claim 1, wherein The welding position of the cable and the special-shaped circuit board is subjected to solid high-temperature insulation glue for bonding treatment.

4. The cable connection structure according to claim 1, wherein The side of the injection molding part is provided with an integrally formed extension, the extension is arranged in an arc shape, and the opening direction is towards the main circuit board.

5. The cable connection structure according to claim 1, wherein The injection molding part and the special-shaped circuit board are formed by injection molding, and the special-shaped circuit board is embedded and installed at the bottom of the injection molding part.

6. The cable connection structure according to claim 1, wherein The through hole on the special-shaped circuit board is provided with at least two, and the two through holes are arranged at the diagonal positions of the conduction area of the special-shaped circuit board.

7. The cable connection structure of claim 1, wherein The cable comprises an outer sheath, a shielding layer and an internal wire harness; The wire harness is located in the outer sheath, and the shielding layer is filled between the wire harness and the outer sheath; The wire harness is welded with the input end of the special-shaped circuit board, and the outer sheath is injection molded at the connecting position of the injection molding part.

8. The cable connection structure of claim 1, wherein The main circuit board is provided with an anti-fooling groove on one side of the connecting seat, and the bottom of the injection molding part is provided with an anti-fooling block matched with the anti-fooling groove.

9. Laser machining head, in particular for laser welding, laser cleaning, laser cutting and laser marking, characterized in that The laser processing head has the cable connecting structure of any one of claims 1-8; wherein the laser processing head further comprises a main body and a shell; The bolt cooperates with the through holes on the main circuit board, the special-shaped circuit board and the injection molding part to fix and install the circuit board on the main body, at least one switch for controlling the start and stop of the laser is arranged on the circuit board, and the shell is fixedly installed on the main body and covers the circuit board.

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