A seamless welding device and method for door and window components

Abstract

The present invention relates to the technical field of door and window welding, and specifically to a seamless welding device and method for door and window assemblies, comprising a base, two clamping units arranged in a left and right mirror image are installed on the upper end of the base, a welding unit for hot-pressing and welding frames is installed on the upper ends of the two clamping units, and the upper ends of the welding units are installed on the external free ends, two front-to-back symmetrical supporting units are installed on one side of the clamping unit close to the middle of the base, and the supporting units are connected to the base, and two front-to-back symmetrically arranged extrusion units are installed in the middle of the upper end of the base, and the two extrusion units are used for clamping long frames and driving them to move in directions approaching each other; the present invention is used for seamlessly welding plastic steel frames, and the present invention can support the opposite sides of two long frames when welding the frames, thereby preventing the deformation of the butt ends of the frames caused by excessive extrusion force, and ensuring the quality of the doors and windows after welding.

Description

Technical Field

[0001] The invention relates to the technical field of door and window welding, and in particular to a seamless welding device and method for door and window components. Background Art

[0002] Doors and windows usually refer to facilities used for ventilation, lighting and entry and exit in houses or buildings. Doors and windows are usually composed of four frames welded together, and the butt ends of the frames are usually at a 45-degree angle. Door and window frames are usually seamlessly welded by hot pressing welding, argon arc welding or laser welding. Plastic steel is a common material for door and window frames. When welding plastic steel frames, hot pressing welding is usually used.

[0003] When welding plastic steel door and window frames, the frames are usually clamped by a clamping device, and the clamping device is controlled to drive the frames to move to the corresponding position of the hot pressing welding device, so that the hot pressing welding device heats the butt ends of the frames. After the heating is completed, the two short frames are fixed by the hot pressing welding device, and the two long frames are squeezed towards each other for a period of time to achieve seamless welding of the door and window frames.

[0004] The following problems exist in the existing hot-press welding of plastic-steel door and window frames: 1. Since there is no support on the opposite sides of the two long frames, there may be excessive extrusion pressure when welding the door and window frames, causing the butt ends of the frames to deform, which in turn causes the size of the doors and windows to deviate after welding, resulting in reduced quality of the doors and windows; 2. When heating the butt ends of frames of different sizes, it is impossible to ensure that the butt ends of the frames are accurately fitted on the hot-press welding device. There may be a small gap between the butt ends of the frames and the hot-press welding device, resulting in incomplete heating of the butt ends of the frames, which in turn causes reduced quality of frame welding. If the butt ends of the frames are excessively fitted on the hot-press welding device, the butt ends of the frames may be deformed during heating, further resulting in reduced quality of the doors and windows after welding. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a seamless welding device for door and window assemblies, comprising a base, two clamping units arranged in mirror images on the upper end of the base, a welding unit for hot-pressing and welding frames is commonly installed on the upper ends of the two clamping units, and the upper ends of the welding units are installed on the external free ends, two front-to-back symmetrical supporting units are installed on the side of the clamping unit close to the middle of the base, and the supporting units are connected to the base, two front-to-back symmetrically arranged extrusion units are installed in the middle of the upper end of the base, the two extrusion units are used to clamp the long frames and drive them to move in a direction approaching each other; two left-to-right symmetrically arranged adjustment grooves are provided on the upper end of the base, two groups of left-to-right symmetrically arranged slide grooves are provided on the upper end of the base and between the two adjustment grooves, each group of slide grooves includes two slide grooves arranged on opposite sides of the front and back; the clamping unit includes a square slidably installed in the adjustment groove shaped plate, square grooves are provided at the upper ends of the opposite sides of the two square plates, clamping parts are installed on the inner walls of the square grooves, and a synchronization part is installed between the two square plates and the base, and sliding plates are installed on the ends of the two square plates that are away from each other to slide up and down, and a clamping mechanism for sticking to the front and rear butt ends of the short frame is installed on the sliding plate, and two positioning mechanisms symmetrically arranged front and back are installed on the end of the sliding plate close to the square plate, and the positioning mechanism is used to position the butt ends of the short frame; the support unit includes a synchronization plate installed in the slide groove for sliding back and forth, and a locking part for locking the position of the synchronization plate is installed on the lower end of the synchronization plate, and a support plate of an L-shaped structure is installed on the upper end of the synchronization plate for sliding back and forth through a top extension spring, and a transmission rod of an elastic telescopic structure is installed on the ends of the two synchronization plates arranged on the left and right that are away from each other to slide up and down, and the end of the transmission rod away from the synchronization plate is connected to its corresponding positioning mechanism.

[0006] Preferably, the clamping mechanism includes square spring rods slidably installed at the front and rear ends of the sliding plate, a return spring is connected between the square spring rods and the sliding plate, and clamping plates are installed at the ends of the two square spring rods away from each other, and the ends of the two clamping plates close to the middle of the base are arranged tilted in the direction of approaching each other.

[0007] Preferably, the sliding plate is provided with square holes passing through its left and right ends, and the two square spring rod fixed ends are hingedly connected to a vertical plate on one side away from the middle of the base through a connecting rod, and a trigger rod is installed on the end of the vertical plate close to the sliding plate for sliding up and down, and the end of the trigger rod away from the vertical plate passes through the square hole and slides through the square plate, and the square plate is located in the square groove of the square plate.

[0008] Preferably, the positioning mechanism includes a fixed plate fixedly mounted on one end of the sliding plate close to the square plate, two limit spring rods symmetrically arranged up and down are fixedly mounted on one end of the fixed plate away from the sliding plate, a positioning block is commonly mounted on one end of the two limit spring rods away from the fixed plate, the end of the positioning block away from the fixed plate is in contact with the pressing plate, and the positioning block is connected to the transmission rod.

[0009] Preferably, the welding unit includes a top plate distributed above the base, the upper end of the top plate is connected to the telescopic end of the electric push rod fixedly installed at the external free end, and the lower end of the top plate is slidably installed with two left-right symmetrically arranged adjustment plates, and the lower end of the adjustment plate is connected with a synchronization rod and its corresponding sliding plate, and two front-to-back symmetrically arranged heating elements are installed at the lower end of the adjustment plate.

[0010] Preferably, two guide grooves symmetrically arranged front to back are provided in the middle of the upper end of the base, and the extrusion unit includes a guide plate slidably installed in the guide groove front to back, an active member driving the two guide plates to move synchronously is connected between the two guide plates and the base, an extrusion plate is slidably installed front to back on the upper end of the guide plate through a guide spring, a placement groove is provided on the upper end of the extrusion plate away from the middle of the base, and a clamping member is also installed on the inner wall of the placement groove.

[0011] Preferably, L-shaped blocking rods are installed at both left and right ends of the extrusion plate, and the blocking rods are used to cooperate with the transmission rod moved to the lower limit position to block the movement of the extrusion plate.

[0012] Preferably, two vertical plates symmetrically arranged on the left and right are fixedly installed on the upper end of the guide plate, and a connecting plate is installed on the upper side of one end of the vertical plate close to the middle of the base for sliding back and forth through multiple limit rods, and an adjusting piece is connected between the connecting plate and the vertical plate. Coupling rods are installed on the upper sides of the ends of the two connecting plates away from each other for sliding left and right through connecting springs, and the ends of the two cooperating rods away from each other are set to inclined surfaces, and limiting holes are provided at the rear ends of the opposite sides of the two support plates arranged on the left and right, and the limiting holes are used to cooperate with the cooperating rods to lock the support plates.

[0013] A seamless welding method for door and window components is completed by using a seamless welding device for door and window components. The specific steps are as follows:

[0014] S1. Frame clamping and positioning: Place the short frame in the square groove of the square plate. The positioning mechanism can position the butt ends of the front and rear ends of the short frame and control the corresponding clamping parts to clamp them. The long frame is clamped by the extrusion unit. According to the size of the door and window, the synchronous parts are controlled to drive the two square plates to move inward to the specified position synchronously.

[0015] S2. Support position adjustment: The positioning mechanism can ultimately drive the support plate to move through the transmission rod, so that the support plate can support the inner side of the long frame when welding doors and windows.

[0016] S3, hot-press welding of frames: control the welding unit to move downward to the heating position, control the two extrusion units to drive the longer frame to move inward to the specified position synchronously, so that the welding unit can heat the butt ends of the long frame and the short frame. After the heating is completed, control the welding unit to move upward, and control the two extrusion units to drive the long frame to move inward synchronously, and then hot-press weld the frame into doors and windows.

[0017] S4, unloading of doors and windows: control the clamping parts and the extrusion unit to release the frame, and take out the doors and windows that have been completed by hot pressing welding.

[0018] The beneficial effects of the present invention are: 1. The present invention supports the opposite sides of the two long frames by setting a support plate, and the support plate is first elastically fitted to the opposite sides of the two long frames, and when the extrusion plate applies a certain extrusion force to the long frames, the present invention locks the support plate by setting a matching rod and a limiting hole, so that the support plate can rigidly support the inner side of the long frame, thereby preventing the deformation of the butt end of the frame caused by excessive extrusion pressure, thereby ensuring the quality of doors and windows after welding.

[0019] 2. The present invention adjusts the extrusion pressure of the extrusion plate on the long frame by controlling the compression amount of the guide spring, and at the same time, the present invention can adjust the distance between the matching rod and the vertical plate. Therefore, when different extrusion pressures are applied to the long frame, the matching rod can lock the support plate, so that the support plate can always rigidly support the inner side of the long frame, thereby increasing the applicability of the present invention.

[0020] 3. The present invention sets a transmission rod and a blocking rod to cooperate in blocking the movement of the extrusion plate, and sets a positioning mechanism to enable the transmission rod to be aligned with the butt ends of short frames of different sizes. When the butt ends of frames of different sizes are heated, the present invention controls the heating element to be precisely fitted to the butt end of the short frame, and the extrusion plate can always drive the butt end of the long frame to move to a position that precisely fits the heating element under the blocking effect of the blocking rod, thereby preventing the existence of a gap or excessive fit between the butt end of the long frame and the heating element, thereby increasing the welding quality of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the clamping unit and the supporting unit after a portion of the base is cut away according to the present invention.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping unit after a portion of the base is cut away according to the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the clamping unit after parts of the sliding plate and the vertical plate are cut away according to the present invention.

[0026] Figure 5 It is a cross-sectional view of the partial structure of the left clamping unit of the present invention (viewed from front to back).

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the welding unit of the present invention.

[0028] Figure 7 It is a three-dimensional structural schematic diagram of an extrusion unit and an adjacent support unit after a portion of the base is cut away according to the present invention.

[0029] Figure 8 It is a cross-sectional view of the connecting plate and the matching rod of the present invention.

[0030] Fig. 9 It is a schematic diagram of the three-dimensional structure of the support unit after a part of the synchronous plate is cut away according to the present invention.

[0031] Figure numerals: 1, base; 11, adjustment groove; 12, synchronization member; 13, guide groove; 2, clamping unit; 21, square plate; 22, clamping member; 23, sliding plate; 24, close-fitting mechanism; 241, square spring rod; 242, return spring; 243, close-fitting plate; 244, connecting rod; 245, vertical plate; 246, trigger rod; 25, positioning mechanism; 251, fixing plate; 252, limit spring rod; 253, positioning block; 3, extrusion unit; 31, guide plate ; 311, vertical plate; 312, limit rod; 313, connecting plate; 314, adjusting member; 315, connecting spring; 316, matching rod; 32, guide spring; 33, extrusion plate; 331, blocking rod; 34, active member; 4, welding unit; 41, top plate; 42, electric push rod; 43, adjusting plate; 44, heating member; 45, synchronization rod; 5, supporting unit; 51, synchronization plate; 52, extension spring; 53, supporting plate; 54, transmission rod; 55, locking member. DETAILED DESCRIPTION

[0032] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0033] See also Figure 1A seamless welding device for door and window assemblies comprises a base 1, two clamping units 2 arranged in a left-right mirror image are installed on the upper end of the base 1, a welding unit 4 for hot-pressing and welding frames is installed on the upper ends of the two clamping units 2, and the upper ends of the welding units 4 are installed on the external free ends, two front-to-back symmetrical supporting units 5 are installed on one side of the clamping unit 2 close to the middle of the base 1, and the supporting unit 5 is connected to the base 1, and two front-to-back symmetrically arranged extrusion units 3 are installed in the middle of the upper end of the base 1, and the two extrusion units 3 are used to clamp the long frames and drive them to move in a direction close to each other.

[0034] The present invention is used for seamless welding of plastic steel frames, and the present invention can support the opposite sides of two long frames when welding the frames, thereby preventing the butt ends of the frames from being deformed due to excessive extrusion pressure, thereby ensuring the quality of doors and windows after welding. At the same time, the present invention can also position the butt ends of frames of different sizes, and thus can quickly and synchronously adjust the positions of the welding unit 4 and the support unit 5, so that the support unit 5 can support the long frames of doors and windows of different sizes.

[0035] Specifically, first, the two short frames are clamped by two clamping units 2, and the two long frames are clamped by two extrusion units 3. The clamping unit 2 can position the butt end of the short frame when clamping the short frame, and simultaneously adjust the hot pressing welding position of the welding unit 4 and the position of the supporting unit 5. Then, according to the size of the long frame, the two clamping units 2 are controlled to drive the short frame to move towards each other to the specified position, and then the welding unit 4 is controlled to move downward so that the welding unit 4 can heat the butt end of the short frame.

[0036] Control the two extrusion units 3 to drive the long frames to move towards each other, so that the welding unit 4 can heat the butt ends of the long frames at the same time. After the heating of the long frame and the short frame is completed, control the welding unit 4 to move upward, and control the two extrusion units 3 to drive the long frames to move towards each other, so that the butt ends of the long frames and the butt ends of the short frames are attached and continuously extruded, and the support unit 5 can support the opposite sides of the two long frames to prevent deformation of the contact ends of the frames due to excessive extrusion, thereby realizing seamless welding of the frames. After welding is completed, control the clamping unit 2 and the extrusion unit 3 to loosen their corresponding frames, and take out the doors and windows after welding.

[0037] See also Figure 1-Figure 3Two adjustment grooves 11 are symmetrically arranged at the upper end of the base 1, and two groups of slide grooves are symmetrically arranged at the upper end of the base 1 and between the two adjustment grooves 11, and each group of slide grooves includes two slide grooves arranged on opposite sides of the front and rear; the clamping unit 2 includes a square plate 21 slidably installed in the adjustment groove 11, and the upper ends of the opposite sides of the two square plates 21 are provided with square grooves, and the inner walls of the square grooves are installed with clamping members 22. A synchronization member 12 is installed between the two square plates 21 and the base 1, and sliding plates 23 are installed on the ends of the two square plates 21 away from each other for sliding up and down. A clamping mechanism 24 for clamping against the front and rear butt ends of the short frame is installed on the sliding plate 23, and two positioning mechanisms 25 symmetrically arranged front and back are installed on the end of the sliding plate 23 close to the square plate 21. The positioning mechanism 25 is used to position the butt end of the short frame.

[0038] It should be noted that the clamping member 22 in the present invention includes an electric telescopic rod and a pressure plate, wherein the pressure plate is fixedly mounted on the telescopic end of the lower end of the electric telescopic rod, and the fixed end of the electric telescopic rod corresponding to the square plate 21 is fixedly mounted on the lower side of the upper inner wall of the square groove. The synchronous member 12 in the present invention uses a synchronous screw to drive the two square plates 21 to move synchronously, the synchronous screw is connected to the two square plates 21 through threaded cooperation, and the synchronous screw and the base 1 are rotatably connected.

[0039] The clamping unit 2 is used to clamp and fix the two short frames; specifically, the two short frames are placed in the square grooves of the two square plates 21, and at the same time, the clamping mechanism 24 can be tightly attached to the two butt ends of the short frames, and the positioning mechanism 25 can position the butt ends of the short frames, and the clamping member 22 is controlled to clamp and fix the short frames, and then the synchronous member 12 is controlled according to the size of the long frame to drive the clamped short frames to move to the specified position in the direction of approaching each other through the two square plates 21. When the seamless welding of the frames is completed, the clamping member 22 is controlled to release the short frames it clamps, and the synchronous member 12 is controlled to drive the two square plates 21 to move in the direction of moving away from each other, and then the doors and windows after welding are taken out.

[0040] See also Figure 2-Figure 5 The clamping mechanism 24 includes a square spring rod 241 installed at the front and rear ends of the sliding plate 23 for forward and backward sliding. A return spring 242 is connected between the square spring rod 241 and the sliding plate 23. A clamping plate 243 is installed at one end of the two square spring rods 241 away from each other. The two clamping plates 243 are arranged with their ends close to the middle of the base 1 tilted in a direction of approaching each other.

[0041] The sliding plate 23 is provided with square holes running through its left and right ends. The fixed ends of the two square spring rods 241 are hinged to a vertical plate 245 on one side away from the middle of the base 1 through a connecting rod 244. A trigger rod 246 is installed on the end of the vertical plate 245 close to the sliding plate 23 for sliding up and down. The end of the trigger rod 246 away from the vertical plate 245 passes through the square hole and slides through the square plate 21, and the square plate 21 is located in the square groove of the square plate 21.

[0042] It should be noted that the angle between the pressing plate 243 and the telescopic end of the square spring rod 241 is 45 degrees.

[0043] The clamping mechanism 24 is used to clamp the butt joint ends at the front and rear ends of the short frame so that the short frame can be clamped in the center by the clamping member 22; specifically, when the short frame is placed in the square groove of the square plate 21, the short frame can push the trigger rod 246 in the direction away from the middle of the base 1, and the trigger rod 246 drives the vertical plate 245 to move in the direction away from the middle of the base 1. At the same time, the vertical plate 245 drives the fixed ends of the two square spring rods 241 to move in the direction approaching each other through the connecting rod 244, and the two square spring rods 241 drive and the corresponding clamping plates 243 to move in the direction approaching each other, so that the clamping plates 243 can be fitted on the corresponding butt joint ends of the short frame, and under the elastic action of the square spring rods 241, the two clamping plates 243 can make the short frame be placed in the square groove in the center front and back. When the frame is taken out of the square groove, the fixed end of the square spring rod 241 returns to the initial position under the action of the reset spring 242, thereby returning the clamping plate 243 and the trigger rod 246 to the initial position.

[0044] See also Figure 1 , Figure 2 and Figure 6 The welding unit 4 includes a top plate 41 distributed above the base 1, the upper end of the top plate 41 is connected to the telescopic end of an electric push rod 42 fixedly installed at the external free end, and the lower end of the top plate 41 is slidably installed with two left-right symmetrically arranged adjustment plates 43, and the lower end of the adjustment plate 43 is connected to the corresponding sliding plate 23 through a synchronization rod 45, and the lower end of the adjustment plate 43 is installed with two front-to-back symmetrically arranged heating elements 44.

[0045] It should be noted that the heating element 44 in the present invention adopts the existing technology, and the heating element 44 includes an electric component and a heating component, wherein the electric component is connected to the adjustment plate 43, the heating component is installed at the lower end of the electric component, the electric component is used to drive the heating component to move forward and backward, and the heating component is set as a plate-like structure.

[0046] The welding unit 4 is used to heat the butt end of the frame; specifically, when the two square plates 21 drive the clamped short frame to move toward each other to the specified position, the sliding plate 23 drives the adjustment plate 43 to move left and right to the specified position through the synchronization rod 45, and then controls the two heating elements 44 arranged in front and behind to move toward each other according to the position of the butt end of the short frame, and finally controls the electric push rod 42 to finally drive the heating element 44 to move downward through the top plate 41, and the heating element 44 drives the sliding plate 23 to move downward through the synchronization rod 45, so that the heating component of the heating element 44 can fit with the butt end of the short frame, and after the heating of the short frame and the long frame is completed, the electric push rod 42 is controlled to finally drive the heating element 44 to move upward by one end through the top plate 41, so that the short frame is located between the heating element 44 and the pressing plate 243, and when the doors and windows after welding are taken out, the electric push rod 42 is controlled to finally drive the heating element 44 to return to the initial position through the top plate 41.

[0047] See also Figure 1 and Figure 7 Two guide grooves 13 symmetrically arranged front and back are provided in the middle of the upper end of the base 1. The extrusion unit 3 includes a guide plate 31 slidably installed in the guide groove 13 front and back. An active member 34 is connected between the two guide plates 31 and the base 1 to drive the two guide plates 31 to move synchronously. An extrusion plate 33 is slidably installed front and back on the upper end of the guide plate 31 through a guide spring 32. A placement groove is provided on the upper end of the extrusion plate 33 away from the middle of the base 1, and a clamping member 22 is also installed on the inner wall of the placement groove.

[0048] It should be noted that the fixed end of the electric telescopic rod corresponding to the extrusion plate 33 in the present invention is fixedly installed on the lower side of the upper inner wall of the placement groove, and the active part 34 in the present invention includes a bidirectional threaded rod, which is connected to the two guide plates 31 by threaded matching, and the bidirectional threaded rod is rotatably connected to the base 1, the front end of the bidirectional threaded rod is connected to the motor output shaft fixedly installed in the base 1, and the bidirectional threaded rod and the synchronous screw are staggered up and down.

[0049] The extrusion unit 3 is used to drive the two long frames to move in a direction approaching each other, and when the butt ends of the long frames contact the butt ends of the short frames, the long frames are continuously extruded in the direction approaching each other; specifically, the long frame is centered in the placement groove of the extrusion plate 33, and its corresponding clamping member 22 is controlled to clamp the long frame, and then the active member 34 is controlled to finally drive the two long frames to move in a direction approaching each other through the guide plate 31. When the long frame moves to the corresponding position of the heating member 44, the active member 34 is controlled to stop driving the two long frames to move, so that the heating member 44 can heat the butt ends of the long frames.

[0050] When the heating of the long frame is completed, the active member 34 is controlled again through the guide plate 31 to finally drive the two long frames to move in a direction close to each other, so that the butt end of the long frame contacts the butt end of the short frame, and when the guide plate 31 continues to move, the guide plate 31 can compress the guide spring 32 and then make the extrusion plate 33 squeeze the long frame in a direction close to the middle of the base 1, so as to achieve seamless welding of the frame. When the welding of the doors and windows is completed, the clamping member 22 corresponding to the extrusion plate 33 is controlled to release the long frame, and the active member 34 is controlled to finally drive the two extrusion plates 33 to move a distance in a direction close to each other through the guide plate 31. When the welded doors and windows are taken out of the placement groove, the active member 34 is controlled again through the guide plate 31 to finally drive the two extrusion plates 33 to return to the initial position.

[0051] See also Figure 1-Figure 4 , Figure 7 and Fig. 9 The support unit 5 includes a synchronous plate 51 that is slidably installed in the slide groove, and a locking piece 55 for locking the position of the synchronous plate 51 is installed at the lower end of the synchronous plate 51. A support plate 53 is slidably installed at the upper end of the synchronous plate 51 through a top extension spring 52. The ends of the two synchronous plates 51 arranged on the left and right that are away from each other are both slidably installed with a transmission rod 54 of an elastic telescopic structure, and the end of the transmission rod 54 away from the synchronous plate 51 is connected to its corresponding positioning mechanism 25.

[0052] The positioning mechanism 25 includes a fixed plate 251 fixedly installed on one end of the sliding plate 23 close to the square plate 21, and two limit spring rods 252 arranged symmetrically up and down are fixedly installed on the end of the fixed plate 251 away from the sliding plate 23. A positioning block 253 is commonly installed on the end of the two limit spring rods 252 away from the fixed plate 251, and the end of the positioning block 253 away from the fixed plate 251 is in contact with the clamping plate 243, and the positioning block 253 is connected to the transmission rod 54, wherein: the two limit spring rods 252 are located on the upper and lower sides of the clamping plate 243, and the contact surface between the positioning block 253 and the clamping plate 243 is set as an arc structure.

[0053] It should be noted that the elastic force of the square spring rod 241 in the present invention is much greater than the elastic force of the limit spring rod 252. The locking member 55 in the present invention includes an L-shaped locking rod slidably installed in the middle of the lower end of the synchronous plate 51. The lateral ends of the locking rod penetrate the synchronous plate 51, and the two locking rods arranged on the left and right are arranged in a mirror image. A downward pressure spring is connected between the vertical section of the locking rod and the synchronous plate 51. The opposite sides of the lower ends of the two locking rods arranged front and back are set as inclined surfaces. The upper inner wall of the slide groove of the base 1 is provided with a plurality of locking holes evenly arranged front and back. When the two synchronous plates 51 arranged front and back move in a direction approaching each other, the synchronous plate 51 can drive the locking rod to move, and the inclined surface on the locking rod will not block the movement of the synchronous plate 51. When the position adjustment of the synchronous plate 51 is completed, the locking rod can be inserted into the corresponding locking hole to achieve the locking of the synchronous plate 51. When the synchronous plate 51 needs to be reset, the locking rod is pulled out of the locking hole upward to contact the locking of the synchronous plate 51.

[0054] The support unit 5 is used to support the opposite sides of the two long frames, and the positioning mechanism 25 is used to position the butt joint ends of the short frame and drive the support unit 5 to move synchronously, so that the support unit 5 can support long frames of different sizes; specifically, when the two pressing plates 243 move in a direction close to each other, the pressing plates 243 can drive the positioning block 253 to move, and under the action of the limiting spring rod 252, the positioning block 253 can always be attached to the opposite sides of the two pressing plates 243, and then when the pressing plates 243 are pressed against the butt joint ends at the front and rear ends of the short frame, the positioning block 253 can move to the corresponding position of the butt joint ends at the front and rear ends of the short frame. , thereby realizing the positioning of the butt ends of short frames of different sizes. At the same time, the positioning block 253 drives the support plate 53 to move through the transmission rod 54 and the synchronous plate 51, and the locking member 55 can lock the synchronous plate 51, so that the two synchronous plates 51 arranged front and back cannot continue to move in the direction approaching each other, and then when the extrusion plate 33 extrudes the long frame in the direction close to the middle of the base 1, the support plate 53 can always fit on the side of the long frame close to the middle of the base 1, and then when hot-pressing and welding doors and windows of different sizes, the support plate 53 can support the opposite sides of the two long frames without affecting the two extrusion plates 33 from extruding the long frames in the direction approaching each other.

[0055] See also Figure 1 and Figure 7 L-shaped blocking rods 331 are installed at both ends of the extrusion plate 33. The blocking rods 331 are used to cooperate with the transmission rod 54 moved to the lower limit position to block the movement of the extrusion plate 33.

[0056] When the electric push rod 42 is controlled to drive the adjustment plate 43 to move downward through the top plate 41, the adjustment plate 43 finally drives the transmission rod 54 to move downward to the corresponding position of the blocking rod 331 through the synchronization rod 45, and then when the extrusion plate 33 drives the two long frames to move in a direction close to each other until they just fit on the heating element 44, the blocking rod 331 can cooperate with the transmission rod 54 to block the extrusion plate 33 from continuing to move, so that the heating element 44 and the long frame docking end are accurately fitted to ensure the welding quality of the door and window frames. When the long frame and the short frame are welded, the electric push rod 42 is controlled to finally drive the transmission rod 54 to move upward by an end distance through the top plate 41, so that the transmission rod 54 no longer blocks the blocking rod 331, so that the extrusion plate 33 can extrude the long frame.

[0057] See also Figure 7 and Figure 8 Two vertical plates 311 arranged symmetrically on the left and right are fixedly installed on the upper end of the guide plate 31. A connecting plate 313 is slidably installed on the upper side of the vertical plate 311 near the middle end of the base 1 through multiple limiting rods 312. An adjusting piece 314 is connected between the connecting plate 313 and the vertical plate 311. A matching rod 316 is slidably installed on the upper side of the ends of the two connecting plates 313 away from each other through a connecting spring 315. The ends of the two matching rods 316 away from each other are both set as inclined surfaces. The rear ends of the opposite sides of the two support plates 53 arranged on the left and right are provided with limiting holes, and the limiting holes are used to cooperate with the matching rods 316 to lock the support plates 53.

[0058] It should be noted that: in the present invention, the adjusting member 314 is adjusted by a threaded rod, wherein the threaded rod and the vertical plate 311 are connected by threaded matching, and the threaded rod and the connecting plate 313 are rotatably connected.

[0059] When the two extrusion plates 33 squeeze the two long frames in a direction approaching each other, the extrusion force of the extrusion plate 33 on the long frame is adjusted by controlling the compression amount of the guide plate 31 on the guide spring 32, and before the long frame is extruded, the adjustment member 314 is controlled to adjust the distance between the connecting plate 313 and the vertical plate 311 according to the extrusion force size of the long frame as needed, and when the guide plate 31 moves toward the direction approaching the middle of the base 1 and compresses the guide spring 32 to a specified compression amount, the guide plate 31 finally drives the connecting plate 313 to move toward the middle of the base 1 to the corresponding position of the support plate 53 through the vertical plate 311, and under the action of the inclined surface of the matching rod 316, the matching rod 316 can first move in the direction away from its corresponding support plate 53 and insert into the limiting hole, thereby locking the support plate 53, so that when the extrusion plate 33 squeezes the long frame, the support plate 53 can rigidly support the inner side of the long frame, thereby preventing the deformation of the butt end of the frame caused by excessive extrusion force, thereby ensuring the quality of the doors and windows after welding.

[0060] A seamless welding method for door and window assemblies, the specific steps are as follows: S1, frame clamping and positioning: the short frame is placed in the square groove of the square plate 21, and the short frame pushes the trigger rod 246 in the direction away from the middle of the base 1 between the two short frames, so that the trigger rod 246 finally drives the two clamping plates 243 to be close to the butt joint end of the short frame through the vertical plate 245, so that the short frame is placed in the square groove with the front and back center, and the positioning block 253 is close to the opposite sides of the two clamping plates 243 under the action of the limiting spring rod 252, so that the positioning block 253 can move to the position of the butt joint end of the short frame for positioning, and control the corresponding clamping member 22 to clamp it, and at the same time, the long frame is placed in the center of the placement groove of the extrusion plate 33, and the corresponding clamping member 22 is controlled to clamp the long frame, and then the synchronization member 12 is controlled according to the size of the door and window to drive the two square plates 21 to move inward to the specified position synchronously.

[0061] S2. Support position adjustment: The positioning block 253 drives the support plate 53 to move through the transmission rod 54 and the synchronization plate 51, so that when long frames and short frames of different sizes are seamlessly welded, the support plate 53 can always fit on the side of the long frame close to the middle of the base 1, thereby supporting the opposite sides of the two long frames.

[0062] S3. Hot pressing welding of the frame: When the square plate 21 moves, the square plate 21 drives the adjustment plate 43 to move through the synchronization rod 45, and controls the two heating elements 44 arranged in front and behind to move in a direction close to each other according to the position of the butt end of the short frame, and then controls the electric push rod 42 to finally drive the heating element 44 to move downward through the top plate 41, so that the heating element 44 fits on the butt end of the short frame, and then controls the active element 34 to finally drive the two long frames to move in a direction close to each other through the guide plate 31, and under the cooperation of the transmission rod 54 and the blocking rod 331, the butt end of the long frame can fit on the heating element 44.

[0063] When the heating of the butt ends of the long frame and the short frame is completed, the electric push rod 42 is controlled through the top plate 41 to finally drive the heating element 44 to move upward a distance first, so that the short frame is located between the heating element 44 and the clamping plate 243. At this time, the transmission rod 54 and the blocking rod 331 are separated, and the active member 34 is controlled again through the guide plate 31 to finally drive the two long frames to move in a direction close to each other, so that the butt ends of the long frame and the butt ends of the short frame are in contact, and when the guide plate 31 continues to move, the guide plate 31 can compress the guide spring 32 and then make the extrusion plate 33 squeeze the long frame in the direction close to the middle of the base 1, so as to realize seamless welding of the frames. At the same time, the matching rod 316 can be inserted into the limiting hole and lock the support plate 53, so that the support plate 53 can rigidly support the inner side of the long frame.

[0064] S4, unloading of doors and windows: control the clamping parts 22 corresponding to the square plate 21 and the clamping parts 22 corresponding to the extrusion plate 33 to loosen their corresponding short frames and long frames, and control the synchronous parts 12 to drive the two square plates 21 to move away from each other, and at the same time control the active parts 34 to finally drive the two extrusion plates 33 to move a distance towards each other through the guide plate 31, and then take out the welded doors and windows.

[0065] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A seamless welding device for door and window assemblies, comprising a base (1), wherein two clamping units (2) arranged in mirror images on the left and right are mounted on the upper end of the base (1), a welding unit (4) for hot-pressing welding a frame is mounted on the upper ends of the two clamping units (2), and the upper ends of the welding units (4) are mounted on an external free end, characterized in that: The clamping unit (2) is provided with two front-to-back symmetrical support units (5) on one side close to the middle of the base (1), and the support unit (5) is connected to the base (1). The middle of the upper end of the base (1) is provided with two front-to-back symmetrically arranged extrusion units (3), and the two extrusion units (3) are used to clamp the long frame and drive it to move in a direction close to each other. The upper end of the base (1) is provided with two adjustment grooves (11) which are arranged symmetrically on the left and right. The upper end of the base (1) and located between the two adjustment grooves (11) are provided with two groups of slide grooves which are arranged symmetrically on the left and right. Each group of slide grooves includes two slide grooves which are arranged on opposite sides of the front and rear sides. The clamping unit (2) comprises a square plate (21) slidably mounted in the adjustment groove (11), the upper ends of the two square plates (21) on opposite sides are each provided with a square groove, the inner wall of the square groove is provided with a clamping member (22), a synchronization member (12) is commonly installed between the two square plates (21) and the base (1), a sliding plate (23) is slidably mounted up and down at the ends of the two square plates (21) away from each other, a pressing mechanism (24) is installed on the sliding plate (23) for pressing against the front and rear butt ends of the short frame, and two positioning mechanisms (25) arranged symmetrically front and rear are installed at one end of the sliding plate (23) close to the square plate (21), and the positioning mechanism (25) is used to position the butt ends of the short frame; The support unit (5) comprises a synchronous plate (51) slidably mounted in a slide groove, a locking member (55) for locking the position of the synchronous plate (51) is mounted at the lower end of the synchronous plate (51), an L-shaped support plate (53) is slidably mounted at the upper end of the synchronous plate (51) via a top extension spring (52), and transmission rods (54) of an elastic telescopic structure are slidably mounted at the ends of the two synchronous plates (51) arranged on the left and right and away from each other, and the ends of the transmission rods (54) away from the synchronous plate (51) are connected to the corresponding positioning mechanism (25); The pressing mechanism (24) comprises square spring rods (241) slidably mounted on the front and rear ends of the sliding plate (23), a return spring (242) being connected between the square spring rods (241) and the sliding plate (23), a pressing plate (243) being mounted on the ends of the two square spring rods (241) that are away from each other, and the ends of the two pressing plates (243) that are close to the middle of the base (1) are arranged in an inclined direction toward each other.

2. A seamless welding device for door and window components according to claim 1, characterized in that: The sliding plate (23) is provided with square holes penetrating the left and right ends thereof. The fixed ends of the two square spring rods (241) are both hingedly connected to a vertical plate (245) via a connecting rod (244) at one side away from the middle of the base (1). A trigger rod (246) is installed on the end of the vertical plate (245) close to the sliding plate (23) so as to slide up and down. The end of the trigger rod (246) away from the vertical plate (245) passes through the square hole and slides through the square plate (21), and the trigger rod (246) is located in the square groove of the square plate (21).

3. A seamless welding device for door and window components according to claim 1, characterized in that: The positioning mechanism (25) comprises a fixed plate (251) fixedly mounted on one end of the sliding plate (23) close to the square plate (21); two upper and lower symmetrically arranged limiting spring rods (252) are fixedly mounted on one end of the fixed plate (251) away from the sliding plate (23); a positioning block (253) is commonly mounted on one end of the two limiting spring rods (252) away from the fixed plate (251); one end of the positioning block (253) away from the fixed plate (251) is in contact with the pressing plate (243), and the positioning block (253) is connected to the transmission rod (54).

4. A seamless welding device for door and window components according to claim 1, characterized in that: The welding unit (4) comprises a top plate (41) disposed above the base (1); the top end of the top plate (41) is connected to the telescopic end of an electric push rod (42) fixedly mounted at the external free end; the lower end of the top plate (41) is slidably mounted with two adjustment plates (43) arranged symmetrically on the left and right sides; the lower end of the adjustment plate (43) is connected to the corresponding sliding plate (23) via a synchronization rod (45); and the lower end of the adjustment plate (43) is mounted with two heating elements (44) arranged symmetrically in front and back sides.

5. A seamless welding device for door and window components according to claim 1, characterized in that: The base (1) is provided with two guide grooves (13) symmetrically arranged front and back at the middle of the upper end. The extrusion unit (3) comprises a guide plate (31) slidably mounted in the guide groove (13) front and back. An active member (34) is connected between the two guide plates (31) and the base (1) to drive the two guide plates (31) to move synchronously. An extrusion plate (33) is slidably mounted front and back at the upper end of the guide plate (31) via a guide spring (32). A placement groove is provided at the upper end of the extrusion plate (33) away from the middle of the base (1). A clamping member (22) is also mounted on the inner wall of the placement groove.

6. A seamless welding device for door and window components according to claim 5, characterized in that: L-shaped blocking rods (331) are installed at both left and right ends of the extrusion plate (33). The blocking rods (331) are used to cooperate with the transmission rod (54) moved to the lower limit position to block the movement of the extrusion plate (33).

7. A seamless welding device for door and window components according to claim 5, characterized in that: Two vertical plates (311) arranged symmetrically on the left and right are fixedly mounted on the upper end of the guide plate (31). A connecting plate (313) is slidably mounted on the upper side of one end of the vertical plate (311) close to the middle of the base (1) through a plurality of limiting rods (312). An adjusting member (314) is connected between the connecting plate (313) and the vertical plate (311). A matching rod (316) is slidably mounted on the upper sides of the ends of the two connecting plates (313) away from each other through a connecting spring (315). The ends of the two matching rods (316) away from each other are both arranged as inclined surfaces. The rear ends of the two supporting plates (53) arranged on the left and right sides are both provided with limiting holes. The limiting holes are used to cooperate with the matching rods (316) to lock the supporting plates (53).

8. A seamless welding method for door and window components, characterized in that: The seamless welding device for door and window components described in any one of claims 1 to 7 is used to complete the process, and the specific steps are as follows: S1. Frame clamping and positioning: the short frame is placed in the square groove of the square plate (21), the positioning mechanism (25) can position the butt ends of the front and rear ends of the short frame, and control the corresponding clamping members (22) to clamp them, the long frame is clamped by the squeezing unit (3), and the synchronization member (12) is controlled according to the size of the door and window to drive the two square plates (21) to move inward to the specified position synchronously; S2, support position adjustment: the positioning mechanism (25) can ultimately drive the support plate (53) to move through the transmission rod (54), so that the support plate (53) can support the inner side of the long frame when welding the door and window; S3, hot-press welding of the frame: controlling the welding unit (4) to move downward to a heating position, controlling the two extrusion units (3) to drive the longer frame to move inward synchronously to a designated position, so that the welding unit (4) can heat the butt ends of the long frame and the short frame. After the heating is completed, controlling the welding unit (4) to move upward, and controlling the two extrusion units (3) to drive the longer frame to move inward synchronously, thereby hot-press welding the frame into a door or window; S4, unloading of doors and windows: controlling the clamping member (22) and the extrusion unit (3) to release the frame, and taking out the doors and windows that have been completed by hot pressing welding.

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