CN108500622B

CN108500622B - Frame rear cover combination welding equipment

Info

Publication number: CN108500622B
Application number: CN201810507329.5A
Authority: CN
Inventors: 由嘉; 汤干文; 许晓彬
Original assignee: Tennseki Shenzhen Technology & Research Co ltd
Current assignee: Tennseki Shenzhen Technology & Research Co ltd
Priority date: 2018-05-24
Filing date: 2018-05-24
Publication date: 2023-12-05
Anticipated expiration: 2038-05-24
Also published as: CN108500622A

Abstract

The invention provides a frame rear cover combined welding device, which is characterized in that a mold core and a base are arranged separately, and the mold core is replaced integrally, so that the operation process is coherent, and the operation efficiency is effectively improved; the inner clamp module and the outer clamp module are arranged, so that the shaping effect of the frame is good; the pressing plate mechanism can enable the rear cover to be tightly attached to the frame, so that the laser mechanism can be conveniently welded; through the conversion of the station transfer mechanism, the shaping of the frame, the positioning and welding operation of the frame and the rear cover can be realized at one time, and the device has good practicability.

Description

Frame rear cover combination welding equipment

Technical Field

The invention relates to the field of machining equipment, in particular to frame rear cover combination welding equipment.

Background

Fig. 1 is a schematic diagram of a conventional process flow for assembling a rear cover of a frame. Most of the conventional electronic device frame 1000 is formed by machining methods such as cutting or grinding, and because the thickness of the frame 1000 is relatively thin, thermal deformation of the frame 1000 inevitably occurs during machining, and therefore, before the frame 1000 and the rear cover 1001 are combined, the frame 1000 needs to be shaped, so that the shape of the frame 1000 conforms to the shape of the frame determined by design.

Generally, if a cold shaping mode is adopted, after shaping the frame 1000, the shaping jig cannot be loosened immediately, so that the frame 1000 is prevented from deforming again; therefore, after the shaping of the frame 1000, the rear cover 1001 needs to be fitted into the frame 1000, and finally, the rear cover 1001 is fixed to the frame 1000 by a processing means such as welding or gluing, and a welding or hinge track is shown by a thick solid line in fig. 1.

In the welding and cementing process, impurities such as scraps or colloidal particles and the like are inevitably generated and fall on shaping equipment; the mold core and the base of the traditional shaping equipment are integrally designed, and cannot be processed when impurities are cleaned; the cleaning times are more, so that the normal operation of the production line is not facilitated, and the processing efficiency is lower.

On the other hand, when the laser welder adopts a welding method without filling welding wires, the requirement on the assembly gap of welding parts is high, so that if the frame and the rear cover cannot be completely matched, the laser welding effect is poor.

Disclosure of Invention

In order to overcome the problems of the prior equipment, the invention provides the frame rear cover combined welding equipment, which ensures that the operation process is coherent by the mode of integrally replacing the mold core through the separation arrangement of the mold core and the base, and effectively improves the operation efficiency; the inner clamp module and the outer clamp module are arranged, so that the shaping effect of the frame is good; the pressing plate mechanism can enable the rear cover to be tightly attached to the frame, so that the laser mechanism can be conveniently welded; through the conversion of the station transfer mechanism, the shaping of the frame, the positioning and welding operation of the frame and the rear cover can be realized at one time, and the device has good practicability.

Correspondingly, the invention provides frame back cover combination welding equipment which comprises a frame back cover combination mechanism, a station transfer mechanism and a laser mechanism;

the frame rear cover combination mechanism comprises a mold core, a base and a pressing plate mechanism;

the mold core comprises a mold core plate, a mold core top block, a plurality of groups of inner clamp modules and a plurality of groups of outer clamp modules; the die core top block is arranged in the middle of the die core plate, and the plurality of groups of inner clamp modules and the plurality of groups of outer clamp modules are respectively arranged around the die core top block; the inner clamp module comprises an inner clamp shaping block and an inner clamp elastic piece; the outer clamp module comprises an outer clamp shaping block, an outer clamp elastic piece and an outer clamp limiting block; in a default state, the inner clamp elastic piece presses the inner clamp shaping block on the periphery of the mold core top block, and the outer clamp elastic piece presses the outer clamp shaping block on the outer clamp limiting block; the frame is arranged between the inner clamp shaping blocks of the inner clamp modules and the outer clamp shaping blocks of the outer clamp modules;

the base comprises a base bracket, an inner clamp driving module and an outer clamp driving module; the mold core is placed on the base support, and the inner clamp driving module and the outer clamp driving module are arranged on the base support; the inner clamp driving module drives the inner clamp shaping blocks of the corresponding inner clamp modules to move away from the mold core top blocks, so that the peripheries of the inner clamp shaping blocks of the plurality of groups of inner clamp modules are overlapped with the outline of the preset inner wall of the frame; the outer clamp driving module drives the outer clamp shaping blocks of the corresponding outer clamp modules to move towards the mold core top blocks, so that the inner walls of the outer clamp shaping blocks of the plurality of groups of outer clamp modules are overlapped with the preset peripheral outline of the frame;

The pressing plate mechanism comprises a pressing plate module and a pressing plate driving module; in the working state, the rear cover is placed on the frame, the pressing plate driving module drives the pressing plate module to move to the position above the rear cover, then drives the pressing plate module to move downwards, and the pressing plate module compresses the rear cover on the frame;

the station transfer mechanism comprises a feeding guide rail, and two ends of the feeding guide rail are respectively provided with a feeding station and a discharging station and a welding station; the frame rear cover combination mechanism is slidably mounted on the feeding guide rail based on the base support and moves between the loading and unloading station and the welding station;

the laser mechanism is arranged on the welding station and used for welding between the frame and the rear cover.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a frame back cover assembly process flow;

fig. 2 is a schematic three-dimensional structure diagram of a frame back cover combination welding device according to an embodiment of the present invention;

FIG. 3 is a schematic view of a three-dimensional structure of a combination mechanism of a rear cover of a frame according to an embodiment of the present invention;

FIG. 4 is a schematic view of a three-dimensional structure of a mold core according to an embodiment of the present invention;

FIG. 5 is a schematic view of a three-dimensional structure of a mold core base plate according to an embodiment of the present invention;

FIG. 6 is a schematic view of the three-dimensional structure of the inner clamp module, the core back plate and the core top block of an embodiment of the present invention;

FIG. 7 is a schematic three-dimensional view of a core top 104 according to an embodiment of the present invention;

FIG. 8 is a schematic three-dimensional view of an internal clamp module according to an embodiment of the present invention;

FIG. 9 is a schematic three-dimensional view of an outer clamp module and a core plate according to an embodiment of the present invention;

FIG. 10 is a schematic view of a three-dimensional structure of an external jig module according to an embodiment of the invention;

FIG. 11 is a partial top view of an outer clamp module and a core plate of a concealed outer clamp plastic block in accordance with an embodiment of the present invention;

FIG. 12 is a schematic view of a three-dimensional structure of a base according to an embodiment of the present invention;

FIG. 13 is a schematic three-dimensional view of an outer clamp driving module and an outer clamp module according to an embodiment of the present invention;

FIG. 14 is a schematic view of a three-dimensional structure of a base of a concealed outer clamp driving module and outer clamp base plate according to an embodiment of the present invention;

FIG. 15 is a schematic three-dimensional structure of an inner clamp driving module according to an embodiment of the present invention;

FIG. 16 is a top view of an inner clamp actuation module according to an embodiment of the present invention;

FIG. 17 is a schematic three-dimensional structure of an inner clamp drive module and an inner clamp module;

FIG. 18 is a schematic view of a three-dimensional structure of a platen mechanism according to an embodiment of the present invention;

FIG. 19 is a schematic view of a three-dimensional structure of a platen module according to an embodiment of the present invention;

FIG. 20 is a schematic view showing a three-dimensional cross-sectional structure of a platen module according to an embodiment of the present invention;

FIG. 21 is a schematic three-dimensional structure of a station transfer mechanism according to an embodiment of the present invention;

FIG. 22 is a schematic view of a three-dimensional structure of a baffle mechanism according to an embodiment of the present invention;

FIG. 23 is a schematic view of a three-dimensional structure of a laser mechanism according to an embodiment of the present invention;

FIG. 24 is a schematic view of a three-dimensional structure of an initial state of a welding apparatus for back cover assembly of a frame according to an embodiment of the present invention;

figure 25 is a schematic view of a three-dimensional structure of a platen module according to an embodiment of the present invention as it moves directly over a mold core,

fig. 26 is an enlarged front view of a portion of the platen module of the present invention compressing the rear cover.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Fig. 2 is a schematic three-dimensional structure diagram of a frame back cover combination welding device according to an embodiment of the present invention, and the embodiment of the present invention provides a frame back cover combination welding device, which includes a frame back cover combination mechanism, a station transfer mechanism 4, a baffle mechanism 5, and a laser mechanism 6; the frame rear cover combination mechanism is used for shaping the frame and fixing the positions of the frame and the rear cover; the whole frame rear cover combination mechanism is converted between an upper blanking station and a laser welding station through a station transfer mechanism; the baffle mechanism 5 is arranged above the station transferring mechanism and is used for isolating light propagation of the feeding and discharging stations and the laser welding stations and avoiding influence of light generated during welding of the laser mechanism on health of workers working at the feeding and discharging stations; the laser mechanism 6 is arranged on the laser welding station and is used for welding the frame and the rear cover.

Fig. 3 is a schematic three-dimensional structure of a frame back cover assembly mechanism according to an embodiment of the invention. The frame rear cover combination mechanism comprises a mold core 1, a base 2 and a pressing plate mechanism 3; the mold core 1 falls on the base 2 under the action of gravity, and the pressing plate mechanism 3 is arranged above the mold core in a crossing way.

Fig. 4 is a schematic diagram of a three-dimensional structure of a mold core according to an embodiment of the present invention, in which parts marked by straight line connection are specific parts, and parts marked by arc connection are an assembly. The mold core of an embodiment of the present invention includes a core plate 100, a core top block 104, an outer clamp module 130, and an inner clamp module 110.

The mold core plate 100 is used for fixing and installing the outer clamp module 130 and the inner clamp module 110, in the embodiment of the present invention, for convenience of processing, the mold core plate 100 is divided into a mold core bottom plate 101 and a mold core top plate 102, the mold core top plate 102 is fixed on the mold core bottom plate 101, and specifically, the structures of the mold core bottom plate 101 and the mold core top plate 102 are designed according to the outer clamp module 130 and the inner clamp module 110; mold core handles 103 are arranged on two sides of the mold core top plate 102, so that the mold core top plate is convenient for operators to lift.

The outer and inner clamp modules 130 and 110 are described below, respectively, and the core plate 100 and core top block 104 are described in terms of the structure of the outer and inner clamp modules 130 and 110.

Fig. 5 is a schematic three-dimensional structure of the core bottom plate 101, fig. 6 is a schematic three-dimensional structure of the inner clamp module 110, the core bottom plate 101 and the core top block 104, fig. 7 is a schematic three-dimensional structure of the core top block 104, and fig. 8 is a schematic three-dimensional structure of the inner clamp module 110.

The die core top block 104 is arranged in the middle of the die core plate 100 and is mainly used for limiting the inner clamp module 110 and limiting the rear cover 1001, and comprises a die core top block base 103 and a die core top block adjusting plate 107, wherein the die core top block base 103 is fixed on the die core bottom plate 101, and the die core top block adjusting plate 107 is arranged on the fixed die core top block base 103; the die core top block adjusting plate 107 is used for adjusting the overall height of the die core top block 104 and adapting to different back cover thicknesses; the core top block 104 functions in particular as described below in connection with the principles of motion of the inner clamp module 110.

In the embodiment of the present invention, a plurality of inner clamp modules 110 are provided, and the plurality of inner clamp modules 110 are disposed on the mold core base plate 101 according to the structure of the frame 1000. The plurality of inner clamp modules 110 have the same structure, and the dimensions have a certain difference according to the design requirements, and the structure of one group of inner clamp modules 110 in the embodiment of the present invention is described below.

The inner clamp module 110 of the embodiment of the present invention includes an inner clamp rail 112, an inner clamp spring jack 111, an inner clamp connection block 114, an inner clamp spring 115, and an inner clamp swage block 117.

An inner clamp rail 112 and an inner clamp spring top block 111 are secured to the core base plate 101, the inner clamp spring top block 111 being located on an axis extension of the inner clamp rail 112.

The bottom of the inner clamp connection block 114 is slidably mounted on the inner clamp rail 112, and preferably, the bottom of the inner clamp connection block 114 is slidably mounted on the inner clamp rail 112 based on an inner clamp slider 113 to reduce motion friction.

Along the axial direction, one end of the inner clamp connecting block 114 is connected with the inner clamp spring jacking block 111 based on an inner clamp spring 115, and the other end is fixedly connected with an inner clamp shaping block 117; the inner clip driving lugs 116 extend from both sides of the inner clip connecting block 114 in a horizontal radial direction. With reference to the three-dimensional schematic view of the mold core base plate 101 shown in fig. 5, the mold core base plate 101 is correspondingly provided with inner clamp driving holes 105 arranged in pairs below corresponding to the inner clamp driving lugs 116; the inner jig driving hole 105 is used for an external driving member to be inserted, and the inner jig driving lug 116 is driven, thereby completing the driving of the inner jig shaping block 117.

The top of the inner clamp shaping block 117 is provided with a frame inner pressing block 118 which is adapted to the shape of the inner wall of the frame 1000, and the frame inner pressing block 118 of each inner clamp module 110 is determined according to the shape of the frame 1000 at the attaching position of the frame inner pressing block 118. The inner frame pressing blocks 118 of all the inner clamp modules 110 jointly act on the inner wall of the frame 1000 for shaping the frame 1000. Because the frame inner pressing block is arranged on the inner clamp shaping block, the inner clamp shaping block is unified below to replace the inner clamp shaping block and the frame inner pressing block.

In the embodiment of the present invention, in a default state, the inner clamp spring 115 is in a compressed state, one end is connected with the inner clamp spring top block 111, and the other end is connected with the inner clamp connecting block 114; since the inner clamp spring top piece 111 is fixed, the inner clamp connection piece 114 is pushed by the inner clamp spring 115 toward the core top piece 104, and the inner clamp shaping piece 117 is pushed against the core top piece 104. At this time, the inner jig shaping blocks 117 of all the inner jig modules 110 are abutted against the core top block 104, and the outer circumferential profile of the inner jig shaping blocks 117 of all the inner jig modules 110 is smaller than the inner wall profile of the frame 1000 to be processed.

In the operating state, the external driving member is extended from the inner clip driving hole 105, and the inner clip connecting block 114 is moved toward the inner clip spring jack 111 by a predetermined distance by driving the inner clip driving lug 116. At this time, the inner jig shaping blocks 117 of all the inner jig modules 110 are moved away from the core top block 104, the inner jig shaping blocks 117 of all the inner jig modules 110 are pressed against the inner wall of the frame 1000 from inside to outside, and the outer circumferential profile of the inner jig shaping blocks 117 of all the inner jig modules 110 is the same as the inner wall profile when the frame 1000 to be processed is designed in advance.

The inner clip driving hole 105 is sized to allow the external driving member to move within the inner clip driving hole 105, and thus the external driving member may be provided in the inner clip driving hole 105 for a long period of time or may be temporarily inserted during operation. When the external driving member is reset from the working state, the inner clamp connecting block 114 is again pushed to the direction of the core top block 104 under the action of the inner clamp spring 115, and the inner clamp shaping block 117 is pushed against the core top block 104, so that the default state is restored.

The inner wall of the frame 1000 can be shaped by the periodical motion of the inner clamp module 110 and the feeding and discharging motion of the frame 1000.

Fig. 9 is a schematic three-dimensional structure of the outer clamp module 130 and the core plate 100 according to an embodiment of the present invention, fig. 10 is a schematic three-dimensional structure of the outer clamp module 130 according to an embodiment of the present invention, and fig. 11 is a partial top view of the outer clamp module 130 and the core plate 100 with the outer clamp shaping block 134 hidden.

The outer clamp module 130 of the embodiment of the present invention includes an outer clamp rail 131, an outer clamp connection block 133, an outer clamp spring 136, and an outer clamp shaping block 134.

The outer clamp guide rail 131 is fixed on the mold core bottom plate 101, and the outer clamp connecting block 133 is connected on the outer clamp guide rail 131 in a sliding manner; preferably, the outer clamp connection block 133 is connected to the outer clamp rail 131 based on the outer clamp slider 132; the outer clamp shaping block 134 is integrally connected and fastened with the outer clamp connecting block 133. An outer clip spring 136 is installed at one side of the outer clip connection block 133 toward the middle of the core plate 100; the outer clamp spring 136 is connected at one end to the outer clamp connection block 133 and at one end to the core top plate 102.

With the direction of the movement of the outer clamp connecting block 133 along the outer clamp guide rail 131 as an axial direction, two radial sides of the outer clamp shaping block 134 are respectively recessed inwards to form an outer clamp limiting notch for limiting the outer clamp shaping block 134, and two outer clamp limiting screws 135 are screwed in the recessed direction of the outer clamp limiting notch and are used for adjusting the limiting distance of the limiting outer clamp shaping block 134. And the outer clamp limiting blocks 108 are respectively arranged at positions corresponding to the outer clamp limiting notches on the die core top plate 102, and the outer clamp shaping blocks 134 are limited through contact among the outer clamp limiting screws 135, the outer clamp limiting notches and the outer clamp limiting blocks 108.

In a default state, the outer clamp spring 136 is compressed, driving the outer clamp connection block 133 to move away from the core top block 104; because the outer clamp connection block 133 and the outer clamp shaping block 134 are fastened together, the outer clamp shaping block 134 moves synchronously away from the core top block 104; the outer clamp limit notch of the outer clamp shaping block 134 contacts the outer clamp limit block 108 to achieve limit. At this time, the outer jig shaping blocks 134 of all the outer jig modules 130 enclose a contour larger than the outer peripheral contour of the frame 1000 to be processed.

In the working state, the outer clamp connecting block 133 is driven to move towards the die core top block 104 by the external driving component until the outer clamp limiting screw 135 contacts with the outer clamp limiting block 108 to form limiting. At this time, the outer jig shaping blocks 134 of all the outer jig modules 130 enclose the same contour as the preset contour of the outer periphery of the machined frame 1000.

The outer circumference of the frame 1000 can be shaped by the periodical motion of the outer jig module 130 and the loading and unloading motion of the frame 1000.

Specifically, the movement of the inner and outer clamp modules 110 and 130 is synchronized or performed in a predetermined sequence.

In a default state, the inner clamp shaping blocks 117 of all the inner clamp modules 110 are propped against the mold core top block 104, and the outer peripheral outline of the inner clamp shaping blocks 117 of all the inner clamp modules 110 is smaller than the outline of the inner wall of the frame 1000 to be processed; the outer clamp limiting notches of the outer clamp shaping blocks 134 of all outer clamp modules 130 are in contact with the corresponding outer clamp limiting blocks 108 to realize limiting, and the outline enclosed by the outer clamp shaping blocks 134 of all outer clamp modules 130 is larger than the outline of the periphery of the frame 1000 to be processed.

The frame 1000 to be machined is first placed between the contour defined by the inner clamp shaper blocks 117 and the contour defined by the outer clamp shaper blocks 134, with the frame 1000 resting on the core top plate 102.

In the working state, the inner clamp shaping blocks 117 of all the inner clamp modules 110 and the outer clamp shaping blocks 134 of all the outer clamp modules 130 move simultaneously or according to a preset sequence, the inner clamp shaping blocks 117 move away from the middle part of the die core top block 104, and the outer clamp shaping blocks 134 move towards the die core top block 104; when the inner jig shaping blocks 117 and the outer jig shaping blocks 134 reach the preset positions, the contour surrounded by the inner jig shaping blocks 117 of all the inner jig modules 110 is the same as the contour of the pre-designed inner wall of the frame 1000, the contour surrounded by the outer jig shaping blocks 134 of all the outer jig modules 130 is the same as the contour of the pre-designed outer periphery of the frame 1000, and the frame 1000 is shaped into the pre-designed shape by the inner jig shaping blocks 117 and the outer jig shaping blocks 134.

Fig. 12 is a schematic three-dimensional structure of a base 2 according to an embodiment of the present invention, where the base 2 is used to carry a mold core 1, and a driving part for driving the inner clamp module 110 and the outer clamp module 130 to move is installed.

The base of the embodiment of the present invention includes a base bracket 200, an inner clamp driving module 210, and an outer clamp driving module 230.

The base bracket 200 of the embodiment of the present invention is used for carrying the mold core 1, installing the inner clamp driving module 210 and the outer clamp driving module 230, and specifically, the base bracket 200 of the embodiment of the present invention includes a base bottom plate 201, an outer clamp bottom plate 203, an outer clamp bottom plate connecting post 202, an inner clamp bottom plate 205 and an inner clamp bottom plate connecting post 204. The outer clamp base plate 203 is fixed on the base plate 201 based on four outer clamp base plate connecting columns 202, and the inner clamp base plate 205 is fixed on the base plate 201 based on four inner clamp base plate connecting columns 204; an outer jig drive connection plate 206 is fixed to the outer jig base plate 203 in the vertical direction.

The outer clamp driving module 230 of the embodiment of the present invention includes an outer clamp driving element 231 having an output end linearly moving, and the outer clamp driving element 231 is fixed to the outer clamp driving connection plate 206. The outer clamp driving cylinder is preferable, and specifically, the outer clamp driving cylinder can be adopted; compared with the external clamp driving cylinder, the external clamp driving cylinder has the advantages that the linear motion of the output end of the external clamp driving cylinder is converted by the rotary motion of the motor, and the output pressure characteristic and the motion speed characteristic of the output end are inversely related; when the power of the outer clamp driving cylinder is constant, the faster the movement speed of the output end is, the lower the output pressure of the output end is, the slower the movement speed of the output end is, and the greater the output pressure of the output end is.

The speed and pressure characteristics of the output end of the outer clamp driving cylinder are positively correlated, and if the input air pressure of the outer clamp driving cylinder needs to be increased to obtain high speed, the speed and pressure of the output end of the outer clamp driving cylinder cannot be independently controlled.

In combination with the shaping process of the frame 1000, when the device is operated, the outer fixture module 130 needs to travel through the idle stroke as soon as possible in the initial stage, and then the pressure is gradually increased along with the contact between the outer fixture shaping block 134 and the frame 1000, so that the whole frame 1000 can be uniformly deformed, and serious local deformation of the frame 1000 caused by suddenly generated force can not be caused, thereby affecting the shaping effect of the frame 1000.

From the above, the use of the outer clamp driving cylinder by the outer clamp driving member 231 is superior to the use of the outer clamp driving cylinder; however, in practice, the price of the air cylinder is far lower than that of the electric cylinder, so that in practical practice, the type of the external clamp driving element can be determined according to practical requirements.

Fig. 13 is a three-dimensional structural schematic diagram of the outer clamp driving module 230 and the outer clamp module 130. Each set of outer clamp modules 130 corresponds to a respective outer clamp drive module 230, and because of the oversized outer clamp modules 130, two sets of outer clamp drive modules 230 are used to drive simultaneously for balance of drive forces. The outer clamp driving element output 232 is opposite to the outer clamp connection block 133 of the corresponding outer clamp module 130, and the outer clamp driving element output 232 is directly spaced from the outer clamp connection block 133 of the outer clamp module 130, so that the mold core is conveniently taken off from the base as a whole. The motion of the outer clamp shaping block 134 is achieved by controlling the motion of the outer clamp drive element output 232, driving the transmission of the outer clamp connection block 133.

Figure 14 is a schematic view of the three-dimensional structure of the base concealing the outer clamp driving module 230 and the outer clamp base plate 203,

fig. 15 is a schematic three-dimensional structure of the inner clamp driving module 210 according to an embodiment of the invention, and fig. 16 is a top view of the inner clamp driving module 210 according to an embodiment of the invention. A plurality of sets of inner clamp driving modules 210 are provided on the inner clamp base plate 205, and in particular, the inner clamp driving modules 210 are mounted on the inner clamp base plate 205 based on the inner clamp driving connection plate 207.

The inner clamp driving module 210 of the embodiment of the present invention includes an inner clamp driving element 211, an inner clamp driving rail 212, an inner clamp driving fixture block 215, and an inner clamp driving output block 214. An inner clamp driving guide rail 212 is fixed on the inner clamp base plate 205, an inner clamp driving element 211 body is fixed on the inner clamp driving connecting plate 207, an inner clamp driving clamping block 215 is fixed on the output end of the inner clamp driving element 211, the bottom of an inner clamp driving output block 214 is slidably mounted on the inner clamp driving guide rail 212 based on an inner clamp driving sliding block 213, the middle part of the inner clamp driving clamping block is clamped in the inner clamp driving clamping block 215, the upper end of the inner clamp driving block extends upwards in a fork shape and penetrates through an inner clamp driving hole 105 on the mold core base plate 101 to drive the inner clamp module 110 to move.

The inner clamp driving output block 214 is clamped on the inner clamp driving clamping block 215, and is driven by the inner clamp driving clamping block 215 to move along the direction of the inner clamp driving guide rail 212.

Preferably, the inner clamp driving member 211 may be an inner clamp driving cylinder, and the reason for selection is the same as that of the outer clamp driving member 231.

Fig. 17 is a schematic three-dimensional structure of the inner clamp driving module 210 and the inner clamp module 110, and part of the fixing members are hidden in order to avoid shielding. Specifically, the output end of the inner clamp driving element 211 drives the inner clamp driving clamping block 215 to move away from the mold core top block 104, the upper end of the inner clamp driving output block 214 penetrates through the mold core bottom plate 101 based on the inner clamp driving lug 116, the inner clamp connecting block 114 is driven to move away from the mold core top block 104, and the inner clamp shaping block 117 fastened on the inner clamp connecting block 114 synchronously moves to shape the inner wall of the frame 1000.

Fig. 18 is a schematic three-dimensional structure of the platen mechanism 3 according to the embodiment of the present invention, and for convenience of observation, the observation angle is adjusted to a certain degree. The platen mechanism 3 according to the embodiment of the present invention includes a platen module 350 and a platen driving module 300, wherein the platen module 350 is used for pressing the rear cover 1001 in the frame 1000 according to a preset position, and the platen driving module 300 is used for driving the platen module 350 to move.

Specifically, the platen driving module 300 includes a platen driving connection plate 301, a platen driving rail 302, a platen driving cross plate 303, a platen translational driving element 304, and a platen lifting driving element 305; two pressing plate driving connecting plates 301 are respectively fixed on two sides of the outer clamp bottom plate 203, and two pressing plate driving guide rails 302 are respectively fixed on the two pressing plate driving connecting plates 301; the platen driving transverse plate 303 spans the outer clamp bottom plate 203, and two sides of the platen driving transverse plate are respectively and slidably arranged on the platen driving guide rails 302 at two ends; on the outer side of one of the platen drive connection plates 301, a platen translational drive element 304 for driving a platen drive cross plate 303 along a platen drive rail 302 is mounted; the platen lift driving element 305 is mounted on the platen drive cross plate 303, the output end of the platen lift driving element 305 faces downward, and the platen module 350 is mounted on the output end of the platen lift driving element 305.

Fig. 19 is a schematic three-dimensional structure of a platen module according to an embodiment of the present invention. The platen module of the present embodiment includes a platen module connection plate 351, a platen assembly, and a platen locating pin 354; the platen module 350 is fixedly connected with the output end of the platen lifting driving element 305 based on a platen module connecting plate 351; the plurality of groups of pressing plate assemblies 352 are mounted on the pressing plate module connecting plate 351; the platen positioning pins 354 are used for guiding the platen module 350 and the mold core 1, and are disposed at the bottom of the platen module connection plate 351.

Fig. 20 is a schematic three-dimensional cross-sectional structure of a platen module according to an embodiment of the present invention. The platen module 350 of the present embodiment includes a plurality of platen assemblies 352, and the plurality of platen assemblies 352 are mounted on the platen module connection plate 351 according to design requirements. All platen assemblies 352 are similar in construction, with the overall dimensions and number of platens 364 at the ends of platen assembly blocks 361 being varied according to design requirements and are described below in the context of a partially enlarged platen assembly as shown in fig. 20.

The platen assembly 352 includes a platen assembly shaft 360, a platen assembly block 361, a platen assembly spring 362, and a platen assembly securing block 363; two ends of the pressing plate assembly shaft 360 are fixed on the pressing plate module connecting plate 351, and the pressing plate assemblies 352 positioned on the same straight line share the pressing plate assembly shaft 360; the root of the pressing plate assembly block 361 is hinged on the pressing plate assembly shaft 360, and the end parts of the pressing plate assembly block extend out of the pressing claws 364 with different numbers; the platen assembly fixing block 363 is fixed above the platen assembly block 361, the platen assembly spring 362 is compressed between the platen assembly fixing block 363 and the platen assembly block 361, and the platen assembly block 361 is pressed on the platen module connecting plate 351 by the platen assembly spring 362; the platen assembly block 361 is rotatable about the platen assembly shaft 360 through an angle and is reset by the platen assembly springs 362. When the platen module operates, the pressing claws 364 press on the rear cover 1001, the root moves toward the platen assembly fixing block 363, and simultaneously presses the rear cover 1001 based on the pressure given by the platen assembly springs 362, embedding the rear cover 1001 into the bezel 1000.

In the frame rear cover combination mechanism of the embodiment of the invention, in a default state, the inner clamp driving output blocks of all the inner clamp driving modules 210 are separated from the inner clamp connecting blocks 114 of the corresponding inner clamp modules 110, the inner clamp shaping blocks 117 of all the inner clamp modules 110 are propped against the mold core top blocks 104 under the action of the inner clamp springs 115, and the peripheral outline of the inner clamp shaping blocks 117 of all the inner clamp modules 110 is smaller than the outline of the inner wall of the frame 1000 to be processed; the outer clamp driving element output ends 232 of all the outer clamp modules 130 are separated from the outer clamp connecting blocks 133 of the corresponding outer clamp modules 130, the outer clamp limiting notches of the outer clamp shaping blocks 134 of all the outer clamp modules 130 are in contact with the corresponding outer clamp limiting blocks 108 to realize limiting, and the outline enclosed by the outer clamp shaping blocks 134 of all the outer clamp modules 130 is larger than the outline of the periphery of the frame 1000 to be processed; the platen module is moved away from above the mold core 1 by the platen drive module 300 to facilitate the addition of the frame and back cover 1001 by the staff.

Fig. 21 is a schematic three-dimensional structure of a station transferring mechanism according to an embodiment of the present invention. The station transferring mechanism 4 of the embodiment of the invention comprises a feeding guide rail 401 and a feeding motor 403; the feeding guide rail 401 is fixed on the machine table, one end is a loading and unloading station, and the other end is a welding station; the feeding slide block 402 is slidably mounted on the feeding guide rail 401, and the feeding motor 403 drives the feeding slide block 402 to move along the feeding guide rail 401 between the feeding and discharging stations and the welding station. The base bottom plate 201 is fixed on the feeding slide block 402; in order to balance the stress, a secondary feeding guide rail 404 is arranged on one side of the feeding guide rail 401, a secondary feeding slide block 405 which is installed in a sliding manner is arranged on the secondary feeding guide rail 404, and the base bottom plate 201 is fixed on the secondary feeding slide block 405.

Fig. 22 is a schematic three-dimensional structure of a baffle mechanism according to an embodiment of the present invention. The baffle mechanism 5 of the embodiment of the present invention includes a baffle bracket 501, a fixed baffle 502, a movable baffle 503, and a baffle driving member 504; the baffle support 501 is transversely arranged in the middle of the feeding guide rail and is shaped like a gate, and consists of two longitudinal sectional materials and a transverse sectional material, wherein the bottoms of the two longitudinal sectional materials are fixed on a machine table; the fixed baffle 502 is fixedly arranged between the upper ends of the two longitudinal profiles, and the movable baffle 503 is slidably arranged between the two longitudinal profiles; the baffle driving element 504 is disposed in the middle of the cross bar of the baffle bracket 501, and the output end of the baffle driving element is connected with the movable baffle 503 to drive the movable baffle 503 to move along the vertical direction. The middle part of the movable baffle 503 is provided with a window supported by extinction material, so that operators can observe whether the laser mechanism works normally or not. When the movable baffle 503 moves to the upper side, the base, the mold core and the pressing plate mechanism can pass through the lower side; when the movable shutter 503 moves downward, it is blocked between the worker and the laser mechanism.

Fig. 23 is a schematic three-dimensional structure of a laser mechanism according to an embodiment of the present invention. If the laser welding of the frame and the rear cover is to be realized, a plane movement degree of freedom is required to be arranged between the laser welding focus and the whole rear cover of the frame, namely, the laser welding focus can be arbitrarily moved to a welding position on the welding plane of the rear cover of the frame so as to realize welding; the movement of the frame rear cover combination mechanism on the feeding guide rail can be regarded as that the frame and the rear cover are integrally provided with one degree of freedom, so that the laser welding focus at least needs to have one degree of freedom of movement which is not parallel to the axis of the feeding guide rail and is parallel to the plane of the rear cover on the premise of not changing the frame rear cover combination mechanism and the station transfer mechanism, and the implementation mode can be realized through one-axis movement or multi-axis linkage. The laser mechanism of the embodiment of the invention comprises a laser bracket 601, a laser transverse guide rail 603, a laser transverse driving element 602, a laser longitudinal guide rail 604, a laser longitudinal driving element 607 and a laser head 608; the laser bracket 601 is of an n-type structure and is transversely arranged at the welding end of the feeding guide rail 401; the laser transverse guide rail 603 is horizontally and transversely arranged on the laser bracket 601; the laser transverse guide rail 604 is slidably mounted on the laser transverse guide rail 603 based on the laser transverse slide block 604, and the laser transverse driving element 602 drives the laser transverse slide block 604 to move along the laser transverse guide rail 603; the laser head 608 is slidably mounted on the laser vertical guide rail 605 based on the laser vertical slider 606, and the laser vertical driving element 607 drives the laser vertical slider 606 to move along the laser vertical guide rail 605. The laser light path 609 is emitted by the laser head 608, and in particular implementations, the laser light path 609 is not visible to the naked eye, and is shown as a solid cone in the figures for ease of description.

It should be noted that, because the welding track of the embodiment of the invention is in the same plane, when the laser welding track works specifically, the focal position of the laser is always kept on the plane of the rear cover, the movement track of the laser head is parallel to the plane of the rear cover, and the laser longitudinal guide rail can be used for adjusting the focal position of the laser welding when the laser mechanism is debugged. Specifically, for the welding track of a non-same plane, the laser longitudinal guide rail is combined, so that the laser welding focus can be arbitrarily moved in the triaxial range, and the adaptability is good.

The laser head is an end device of the laser welding machine and is used for focusing a laser path; in the drawings, the device such as a light path device, a cooling device and the like of the laser welding machine are also arranged, and in practical implementation, external equipment such as a cooling box, a laser generator and the like are also arranged outside the device; because the embodiment of the invention does not innovate on the self structure of the laser welding machine, the laser welding machine can adopt the laser welding machine in the prior art, and the embodiment of the invention is not additionally described; in the drawings, parts of the laser welder having a large volume are also hidden for the sake of structural clarity.

In addition, an optical fiber transmission galvanometer type laser welding machine can be adopted, and comprises a laser generator, an optical fiber transmission system, a laser bracket, a galvanometer system and a field lens, wherein the laser bracket is consistent with the arrangement mode, and the galvanometer system and the field lens are arranged in the laser head; generally, a YAG solid laser with lower cost is adopted as a laser generator, laser generated by the laser generator is led out to a galvanometer system through an optical fiber transmission system, the galvanometer system generally comprises an X-direction galvanometer and a Y-direction galvanometer for adjusting a laser light path, and the rotation angles of the X-direction galvanometer and the Y-direction galvanometer are driven by a high-speed servo motor to adjust the direction of the light path; the finally led out laser light path is focused by a field lens. Compared with the laser generator, the laser head (namely the galvanometer system and the field lens) adjusts the position of the laser head through the transverse laser guide rail and the longitudinal laser guide rail, so that the focus of the laser head falls on a plane to be welded, and the laser head is kept still during welding, and the position of the laser focus is adjusted through the galvanometer system. In specific implementation, the one-time operation process of the frame rear cover combination welding equipment provided by the embodiment of the invention comprises the following steps:

Initial state: fig. 24 is a schematic three-dimensional structure diagram of an initial state of a frame back cover combination welding device according to an embodiment of the present invention, where a baffle mechanism and a laser mechanism are hidden for clarity of the drawing. The frame rear cover combination mechanism is positioned at the feeding position of the station transfer mechanism, and at the moment, the movable baffle of the baffle mechanism is positioned at the upper end of the baffle bracket (not shown in fig. 24); the pressing plate module of the pressing plate mechanism moves to a position far away from the mold core; the driving element of the base is not contacted with the mold core, and the mold core can be directly pulled out from the base for replacement; the inner clamp module and the outer clamp module on the mold core are not driven by external force, and a space for placing the frame is reserved between all the inner clamp shaping blocks and the outer clamp shaping blocks;

and (3) frame feeding: the operator places the frame between the inner clamp shaping block and the outer clamp shaping block;

shaping a frame: an inner clamp driving element and an outer clamp driving element on the base are started and run to a set position; the inner clamp shaping block and the outer clamp shaping block of the mold core are driven to corresponding positions, and the side frames are shaped, clamped and positioned;

and (5) feeding a rear cover: the operator places the rear cover on the frame; it should be noted that, at this time, the rear cover is only initially placed at the corresponding position of the frame and is not embedded into the frame;

Frame and back cover combination: fig. 25 is a schematic three-dimensional structure of the platen module when moving to the position right above the mold core, and fig. 26 is a partially enlarged front view of the platen module when pressing the rear cover. The pressing plate module is driven by a pressing plate translational driving element to move to the position right above the mold core; then the pressing plate lifting driving element drives the pressing plate module to move towards the mold core direction until the pressing plate module moves to a set position; the pressing claws of each group of pressing plate assemblies are fixed on the positions for respectively pressing the rear cover to the set positions;

station switching: the station transfer mechanism conveys the whole frame rear cover combination mechanism from the loading and unloading station to the welding station, and the pressing plate module always keeps a state of pressing the rear cover in the transportation process of the frame rear cover combination mechanism; when the frame rear cover combination mechanism passes through the baffle mechanism, a movable baffle of the baffle mechanism falls down and is shielded between the feeding and discharging stations and the welding station;

laser primary welding: the laser mechanism firstly needs to perform preliminary laser welding on the frame and the rear cover through the pressing claws, namely at the gaps among the pressing claws, so as to preliminarily fix the position between the frame and the rear cover and prevent the rear cover from falling off from the frame after the pressing plate module is reset;

And (3) laser complete welding: FIG. 2 is a schematic view of a three-dimensional structure of a frame back cover combination welding device in the case of laser complete welding; after preliminary laser welding, the relative positions of the frame and the rear cover are preliminarily fixed, and the pressing plate module is reset, namely the pressing plate module is restored to an initial state; the laser mechanism performs complete welding according to the welding track of the frame and the rear cover, and complete fixation between the frame and the rear cover is completed;

in the welding process of laser preliminary welding and laser complete welding, the motion of the frame rear cover combination mechanism is combined with the laser head and the motion, so that the random motion of a laser focus in a three-axis coordinate system can be realized, and the laser head combination mechanism have good adaptability to different workpieces;

and (3) blanking a finished product: the frame and the rear cover welding machine are finished and become finished products, the movable baffle moves upwards, and the frame rear cover combining mechanism moves from the welding station to the feeding and discharging station; the inner clamp driving element and the outer clamp driving element are reset, the inner clamp shaping block and the outer clamp shaping block are reset, and clamping of the frame is released; and the staff takes out the finished product, and the one-time operation process of the frame rear cover combined welding equipment is finished.

The embodiment of the invention provides a frame rear cover combined welding device, which ensures that the operation process is coherent and the operation efficiency is effectively improved by the mode of integrally replacing a mold core through the separation arrangement of the mold core and a base; the inner clamp module and the outer clamp module are arranged, so that the shaping effect of the frame is good; the pressing plate mechanism can enable the rear cover to be tightly attached to the frame, so that the laser mechanism can be conveniently welded; through the conversion of the station transfer mechanism, the shaping of the frame, the positioning and welding operation of the frame and the rear cover can be realized at one time, and the device has good practicability.

The foregoing has described in detail a welding apparatus for assembling and welding a rear cover of a frame, which is provided by the embodiments of the present invention, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, and the description of the foregoing examples is only for helping to understand the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims

1. The frame rear cover combination welding equipment is characterized by comprising a frame rear cover combination mechanism, a station transfer mechanism and a laser mechanism;

the mold core comprises a mold core plate, a mold core top block, a plurality of groups of inner clamp modules and a plurality of groups of outer clamp modules; the die core top block is arranged in the middle of the die core plate, and the plurality of groups of inner clamp modules and the plurality of groups of outer clamp modules are respectively arranged around the die core top block; the inner clamp module comprises an inner clamp shaping block and an inner clamp elastic piece; the outer clamp module comprises an outer clamp shaping block, an outer clamp elastic piece and an outer clamp limiting block; in a default state, the inner clamp elastic piece presses the inner clamp shaping block on the periphery of the mold core top block, and the outer clamp elastic piece presses the outer clamp shaping block on the outer clamp limiting block; the frame is arranged between the inner clamp shaping blocks of the plurality of groups of inner clamp modules and the outer clamp shaping blocks of the plurality of groups of outer clamp modules; the outer clamp module further comprises an outer clamp connecting block; the outer clamp limiting block is fixed on the die core plate; the outer clamp shaping block and the outer clamp connecting block are fixed into a whole, and the inner clamp elastic piece is arranged between the mold core plate and the outer clamp connecting block; under a default state, the outer clamp elastic piece drives the outer clamp connecting block to move away from the mold core top block, and the outer clamp shaping block is pressed on the outer clamp limiting block;

The base comprises a base bracket, an inner clamp driving module and an outer clamp driving module; the mold core is placed on the base support, and the inner clamp driving module and the outer clamp driving module are arranged on the base support; the inner clamp driving module drives the inner clamp shaping blocks of the corresponding inner clamp modules to move away from the mold core top blocks, so that the peripheries of the inner clamp shaping blocks of the plurality of groups of inner clamp modules are overlapped with the outline of the preset inner wall of the frame; the outer clamp driving module drives the outer clamp shaping blocks of the corresponding outer clamp modules to move towards the mold core top blocks, so that the inner walls of the outer clamp shaping blocks of the plurality of groups of outer clamp modules are overlapped with the preset peripheral outline of the frame; the base bracket also comprises an outer clamp bottom plate; the outer clamp driving module comprises an outer clamp driving element, an outer clamp driving element body is fixed on the outer clamp bottom plate, and an output end drives the outer clamp connecting block to move;

2. The bezel back cover combination welding apparatus of claim 1, wherein the bezel back cover combination welding apparatus further comprises a baffle mechanism comprising a baffle bracket, a fixed baffle, a movable baffle;

the baffle support is transversely arranged on the feeding guide rail, the fixed baffle is fixed above the baffle support, and the movable baffle is arranged on the baffle support in a sliding manner along the vertical direction.

3. The frame rear cover combination welding device of claim 1, wherein the laser mechanism is an optical fiber transmission galvanometer type laser welding machine, the optical fiber transmission galvanometer type laser welding machine comprises a laser generator, an optical fiber transmission system, a laser bracket and a laser head, and a galvanometer system and a field lens are arranged inside the laser head;

The laser bracket is transversely arranged above the feeding guide rail; the laser generator is arranged outside, and laser is led out to the galvanometer system based on the optical fiber transmission system; and after the laser is subjected to direction adjustment by the galvanometer system, the laser is focused by the field lens and then is used for welding the frame and the rear cover.

4. The frame back cover combination welding apparatus of claim 1, wherein the platen drive module comprises a platen translational drive element and a platen lifting drive element;

the platen translational driving element drives the platen module to move to the position above the rear cover, and the platen lifting driving element drives the platen module to move downwards.

5. The frame back cover combination welding apparatus of claim 4, wherein the platen mechanism further comprises a platen drive connection plate, a platen drive cross plate;

the two pressing plate driving connecting plates are respectively fixed at two sides of the outer clamp bottom plate, the pressing plate driving transverse plates transversely span the outer clamp bottom plate, and the two sides of the pressing plate driving transverse plates are respectively and slidably arranged on the pressing plate driving connecting plates;

the platen translational driving element is arranged on the outer side of one platen driving connecting plate and drives the platen driving transverse plate to move; the pressing plate lifting driving element is installed on the pressing plate driving transverse plate, and the pressing plate module is installed on the output end of the pressing plate lifting driving element.

6. The frame back cover combination welding apparatus of claim 4, wherein the platen module comprises a platen module connection plate and a platen assembly, the platen module connection plate being fixed on an output end of the platen lift driving element;

the pressing plate assembly comprises a pressing plate assembly shaft, a pressing plate assembly block, a pressing plate assembly spring and a pressing plate assembly fixing block; two ends of the pressing plate assembly shaft are fixed on the pressing plate module connecting plate, and the pressing plate assemblies positioned on the same straight line share one pressing plate assembly shaft; the root of the pressing plate assembly block is hinged on the pressing plate assembly shaft, and more than one pressing claw extends out of the end part of the pressing plate assembly block; the pressure plate assembly fixing block is fixed above the pressure plate assembly block, and the pressure plate assembly spring is compressed between the pressure plate assembly fixing block and the pressure plate assembly block; the pressing plate assembly block is pressed on the pressing plate module connecting plate by the pressing plate assembly spring.

7. The frame back cover combination welding apparatus of claim 1, wherein the inner clip module further comprises an inner clip connection block and an inner clip elastic member top block;

the inner clamp elastic piece jacking block is fixed on the die core plate, the inner clamp shaping block is fixed on the inner clamp connecting block, and the inner clamp elastic piece is arranged between the inner clamp connecting block and the inner clamp elastic piece jacking block; under default, interior anchor clamps elastic component drive outer anchor clamps connecting block towards the mold core top piece motion, interior anchor clamps plastic piece is pressed the mold core top piece periphery.

8. The frame back cover combination welding apparatus of claim 7, wherein the mold core plates are provided with inner jig driving holes for the driving elements to extend into, respectively, under the plurality of groups of inner jig modules;

the base bracket comprises an inner clamp bottom plate; the inner clamp driving module comprises an inner clamp driving element and an inner clamp driving output block; the inner clamp driving element body is fixed on the inner clamp bottom plate; one end of the inner clamp driving output block is connected with the output end of the inner clamp driving element, and the other end of the inner clamp driving output block stretches into the inner clamp driving hole to drive the inner clamp connecting block to move.