Press-in assembly positioning mechanism for side frame production

Abstract

The invention discloses a side frame production press-in assembly positioning mechanism, and belongs to the technical field of side frame assembly.The side frame production press-in assembly positioning mechanism comprises a supporting frame, positioning pieces are arranged at the four corners of the supporting frame, supporting discs are rotationally installed at the four corners of the supporting frame, each positioning piece comprises a supporting block installed on the corresponding supporting disc in a sliding mode, and positioning blocks are fixedly connected to the supporting blocks; the supporting blocks are driven to slide in the radial direction of the supporting disc, the supporting disc is driven to rotate so as to adjust the guiding direction of the supporting blocks, and a limiting piece for preventing the supporting disc from rotating along with the supporting disc is further arranged on the supporting frame. According to the press-in assembly positioning mechanism, sliding of the supporting block relative to the supporting disc is divided into the first stroke and the second stroke, the driving piece is arranged on the supporting disc, and the driving piece directly pushes the supporting block to slide relative to the supporting disc and sequentially passes through the first stroke and the second stroke; the stress direction of the sliding block is always along the guide direction of the sliding groove, so that the sliding block and the sliding groove are stably matched, and the positioning block is prevented from deviating.

Description

Technical Field

[0001] The present invention relates to the technical field of side frame assembly, and specifically discloses a press-fitting and positioning mechanism for side frame production. Background Art

[0002] The side frame, namely the frame of a glass window or a glass door, is used for glass installation and also has a certain protective effect on the glass. Commonly used side frames are mostly made of materials such as aluminum alloy, broken bridge aluminum, and plastic steel. The side frame includes two groups of short beams and two groups of long beams. The connection methods between adjacent short beams and long beams include corner connection (angle code), welding assembly, bolt fixation, etc.; among them, when using corner connection, bolts can be used to fix the corner, or the corner is in interference fit with the short beam and the long beam, that is, the corner is directly pressed into the end of the short beam or the long beam, so as to generate sufficient radial pressure and friction force to ensure that the corner does not loosen or fall off in the aluminum beam cavity; when the corner is connected to the short beam or the long beam by interference fit, a press is needed to push the corner so that both sides of the corner are pressed into the ends of the short beam and the long beam respectively. A positioning block for positioning the corner is provided on the press to prevent the corner from tilting or shifting during the pressing process, resulting in deformation of the aluminum beam.

[0003] For example, the patent with the publication number CN220347726U and the publication date of January 16, 2024 discloses an aluminum alloy profile window frame processing production line, including a profile cutting device (1), a profile grooving device (2), a splicing presser foot device (3), and a drilling device (4) arranged in sequence from front to back. The advantages are: ① The edge materials generated by cutting are centrally collected by a conveyor, and cutting and grooving are both carried out in a soundproof protective cover, effectively reducing noise; ② When assembling the corners, the four corners of the frame are carried out simultaneously, improving work efficiency; ③ The positioning of the frame during drilling is fast, and the residues generated during drilling can be automatically removed, improving the positioning accuracy of the frame.

[0004] During the process of using a press-in machine to connect the corner joint with the short beam and the long beam, the pushing of the corner joint is divided into two directions, namely along the axial direction of the short beam and the axial direction of the long beam. In the prior art, the positioning block is usually fixedly installed on the support block, and the support block is slidably connected to the bottom plate (the support block slides along the axial direction of the short beam), and the bottom plate is further slidably connected to the workbench (the bottom plate slides along the axial direction of the long beam). Among them, both the support block and the bottom plate, and both the bottom plate and the workbench, are slidably connected by matching the slider and the guide rail. A first cylinder for driving the bottom plate to move is provided on the workbench, and a second cylinder for driving the support block to move is provided on the bottom plate; since the corner joint is in interference fit with both the long beam and the short beam, the extrusion force required for their connection is relatively large. When the support block is pushed along the axial direction of the short beam, the guide rail at the connection between the bottom plate and the workbench is subjected to a large force. When the bottom plate is pushed along the axial direction of the long beam, the guide rail at the connection between the support block and the bottom plate is subjected to a large force. The large force will cause the guide rail to loosen or deform, and once the guide rail loosens or deforms, the position of the positioning block will shift, resulting in the inability to accurately position the corner joint; on the other hand, during the process of pushing the bottom plate to drive the support block to move along the axial direction of the long beam, the force application height of the bottom plate is lower than the height of the positioning block. Therefore, the reaction force from the corner joint received by the positioning block is not in the same straight line as the thrust received by the bottom plate, resulting in a large shear force on the slider connecting the support block and the bottom plate. While the sliding resistance increases, the slider also has a tendency to disengage from the guide rail, which is not conducive to the connection between the corner joint and the short beam or the long beam. Summary of the Invention

[0005] The object of the present invention is to provide a press-in assembly positioning mechanism for side frame production.

[0006] In order to achieve the above object, the present invention provides the following technical solutions: A press-in assembly positioning mechanism for side frame production, including a support frame. Positioning members are provided at the four corner positions of the support frame. Support disks are rotatably installed at the four corner positions of the support frame. The positioning member includes a support block slidably installed on the support disk. A positioning block is fixedly connected to the support block. The support block is driven to slide along the radial direction of the support disk. When the support block slides to coincide with the central axis of the support disk, the support disk is driven to rotate to adjust the guiding direction of the support block. A limiting member for preventing the support disk from rotating along with the support disk is further provided on the support frame.

[0007] In the above press-in assembly positioning mechanism, a first cylinder is fixedly connected to the support disk. The first cylinder is arranged along the sliding direction of the support block. The support block is a cylinder, and a connecting member is provided on the support block. The output end of the first cylinder is connected to the connecting member, and the connecting member can rotate around the central axis of the support block.

[0008] In the above press-in assembly positioning mechanism, rotary cylinders are installed at the positions corresponding to the support disks on the support frame. The rotary cylinders drive the support disks to rotate self - clockwise through swing arms.

[0009] For the above press-fitting assembly positioning mechanism, the positioning block includes a limiting block for limiting the outer side of the docking angle and a limiting post for limiting the inner side of the docking angle. The cross-section of the limiting block is L-shaped, the cross-section of the limiting post is rectangular, and the diagonals of the limiting block and the limiting post coincide.

[0010] For the above press-fitting assembly positioning mechanism, the limiting post is movably installed on the support block. A transmission member is arranged in the support block. When the first cylinder contracts, the limiting post is first driven by the transmission member to contract into the support block, and then the support block is pulled to slide reversely on the support plate.

[0011] For the above press-fitting assembly positioning mechanism, the transmission member includes an adjusting block connected to the first cylinder. The adjusting block extends into the support block. A support plate is slidably installed on the support block along its own axial direction. The limiting post is installed on the support plate. An adjusting rod is installed on the support plate. The lower end of the adjusting rod is slidably connected to the adjusting block. During the process that the first cylinder pulls the adjusting block to move outward of the support block, the adjusting block drives the support plate to move downward along the axial direction of the support block until the limiting post contracts into the support block.

[0012] For the above press-fitting assembly positioning mechanism, the limiting member includes a telescopic rod arranged along the width direction of the support frame. The two ends of the telescopic rod are respectively fixedly connected to the corresponding support blocks. A support seat is slidably installed on the support frame. The support seat is arranged along the axial direction of the long beam. The telescopic rod penetrates through the upper part of the support seat.

[0013] For the above press-fitting assembly positioning mechanism, cushion blocks are fixedly connected to the positions of the telescopic rod near both ends. One side of the upper surface of the cushion block is fixedly connected with a baffle, and a blocking rod is rotatably installed on the other side of the upper surface of the cushion block. A torsion spring capable of maintaining the blocking rod in a vertical state is arranged at the installation position of the blocking rod.

[0014] For the above press-fitting assembly positioning mechanism, an extruding member for positioning the long beam is arranged on the support frame. The extruding member includes a fixed block fixedly connected to the support frame and a movable block slidably installed on the support frame. The movable block is driven to extrude the long beam towards the side where the fixed block is located.

[0015] For the above press-fitting assembly positioning mechanism, a second cylinder is installed on the support frame along its own width direction. The second cylinder and the movable block are arranged in one-to-one correspondence, and the second cylinder extends to drive the movable block to move towards its corresponding fixed block.

[0016] In the above technical scheme, the side frame production press-in assembly positioning mechanism provided by the present invention is divided into a first stroke and a second stroke by making the sliding of the support block relative to the support plate. In the first stroke, the support block moves along the axial direction of the short beam, and in the second stroke, the support block moves along the axial direction of the long beam. A driving member is arranged on the support plate, and the driving member directly pushes the support block to slide relative to the support plate and pass through the first stroke and the second stroke in sequence. The force direction of the slider is always along the guide direction of the slide groove, thereby ensuring stable cooperation between the slider and the slide groove, preventing the positioning block from shifting, and ensuring that the end of the joint angle can remain opposite to the end of the short beam or the long beam during the extrusion process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the structure provided by an embodiment of the present invention; Figure 2 A top view provided for an embodiment of the present invention; Figure 3 A cross-sectional view of a support frame provided by an embodiment of the present invention; Figure 4 An elevation view of a support block provided for an embodiment of the present invention; Figure 5 A schematic diagram of a top view of a support block provided in an embodiment of the present invention; Figure 6 A cross-sectional view of a support block provided by an embodiment of the present invention; Figure 7 A schematic diagram of the internal structure of a support block provided in an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a transmission member provided in an embodiment of the present invention; Figure 9 A schematic diagram of a partial structure of a transmission member provided in an embodiment of the present invention; Figure 10 The embodiment of the present invention provides Figure 9 Sectional view; Figure 11 A schematic diagram of the mating state of the protrusion and the guide column provided in an embodiment of the present invention; Figure 12 An enlarged schematic diagram of an adjustment block provided in an embodiment of the present invention; Figure 13 An enlarged schematic diagram of a position limiting member provided in an embodiment of the present invention; Figure 14 Schematic diagram of the connection state between the support disk and the swing arm provided by the embodiment of the present invention.

[0019] Description of the reference numerals: 1. Support frame; 11. Frame body; 12. Support table; 121. Rotary cylinder; 122. Swing arm; 123. Support seat; 124. Fixed block; 125. Movable block; 2. Support disk; 21. First cylinder; 3. Positioning member; 31. Support block; 311. Slide block; 32. Positioning block; 321. Limiting block; 322. Limiting column; 3221. Clamping block; 4. Limiting member; 41. Telescopic rod; 411. First square rod; 412. Second square rod; 42. Pad; 421. Baffle; 422. Stop rod; 5. Transmission member; 51. Adjusting block; 511. First horizontal section; 512. Inclined section; 513. Second horizontal section; 514. Limiting groove; 515. Rack; 52. Support plate; 521. Adjusting rod; 522. Ball head; 523. Guide groove; 524. Rotating ring; 5241. Projection; 525. Guide post; 526. Disk; 527. Gear; 528. Spring; 529. Guide rod; 6. Second cylinder. Detailed implementation manners

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0021] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Such as Figures 1-14As shown in the figure, a side frame production press-fitting and positioning mechanism provided by an embodiment of the present invention includes a support frame 1. Positioning members 3 are provided at the four corners of the support frame 1. Support disks 2 are rotatably installed at the four corners of the support frame 1. The positioning member 3 includes a support block 31 slidably installed on the support disk 2. A positioning block 32 is fixedly connected to the support block 31. The support block 31 is driven to slide radially along the support disk 2. When the support block 31 slides to coincide with the central axis of the support disk 2, the support disk 2 is driven to rotate to adjust the guiding direction of the support block 31. A limiting member 4 for preventing the support disk 2 from rotating along with the support disk 2 is further provided on the support frame 1.

[0023] Specifically, as Figure 1 and Figure 2 shown, the support frame 1 is the support structure of the pressing device, and its structure is a cuboid. The support frame 1 includes a frame body 11 and a support table 12. There are three groups of support tables 12, which are respectively arranged at both ends and the middle of the upper surface of the frame body 11. Each support table 12 is fixed to the upper part of the frame body 11. Positioning members 3 are provided at the four corners of the support frame 1 to respectively position the four joints of the side frame. Different from the prior art, support disks 2 are provided at the four corners of the support frame 1. The support disks 2 are rotatably installed on the corresponding support tables 12. The positioning member 3 includes a support block 31 slidably installed on the support disk 2. A slider 311 is fixedly connected to the support block 31. A chute is opened along the radial direction of the support disk 2. The chute is matched with the slider 311 to enable the support block 31 to move radially along the support disk 2. A rotary drive member such as a motor for driving the support disk 2 to rotate 90° is provided on the support frame 1. To prevent the slider 311 from affecting the relative rotation between the support block 31 and the support disk 2, as Figure 4 shown, the slider 311 is cylindrical; a linear drive mechanism such as a cylinder for driving the support block 31 to slide is further provided on the support disk 2. The cylinder is arranged along the length direction of the chute, and the output end of the cylinder abuts against the surface of the support block 31. When the support disk 2 rotates, the cylinder revolves around the central axis of the support disk 2. In addition, a limiting member 4 is further provided on the support frame 1, and the limiting member 4 restricts the support block 31 from rotating along with the support disk 2.

[0024] During the process that the support block 31 is driven to slide relative to the support disk 2, the support block 31 has a first stroke and a second stroke: In the first stroke, the support block 31 slides from one end of the chute towards the position where the central axis of the support disk 2 is located. When the slider 311 is coaxial with the support disk 2, the first stroke ends; In the second stroke, the support block 31 slides from the middle of the chute, that is, the position where the central axis of the support disk 2 is located, towards the other end of the chute.

[0025] When assembling the side frame, place the two groups of short beams on the support table 12 along the width direction of the support frame 1 respectively, place the two groups of long beams on the support table 12 along the length direction of the support frame 1, and align the two ends of the short beams and long beams with the corresponding connecting corners. When the support disc 2 is at the initial angle, the chute is parallel to the central axis of the short beam; the linear drive mechanism drives the support block 31 to slide towards the middle of the support disc 2. This process corresponds to the above-mentioned first stroke. When the first stroke ends, the connection between the connecting corner and the short beam is completed, and the linear drive mechanism pauses; at this time, the rotary drive member drives the support disc 2 to rotate 90° (note the rotation direction of the support disc 2 at this time to ensure that when the linear drive mechanism drives the support block 31 to slide in the second stroke, the support block 31 can slide towards the side where the end of the long beam is located), so that the direction of the chute is parallel to the central axis of the long beam. At this time, the linear drive mechanism continues to drive the support block 31 to slide along the chute. This process corresponds to the above-mentioned second stroke (in the second stroke, the short beam moves synchronously with its corresponding connecting corner). When the second stroke ends, the connection between the connecting corner and the long beam is completed.

[0026] The side frame production press-fitting and positioning mechanism provided by the embodiment of the present invention divides the sliding of the support block 31 relative to the support disc 2 into a first stroke and a second stroke. In the first stroke, the support block 31 moves along the axial direction of the short beam. In the second stroke, the support block 31 moves along the axial direction of the long beam. A drive member is provided on the support disc 2, and the drive member directly pushes the support block 31 to slide relative to the support disc 2 and sequentially passes through the first stroke and the second stroke. The force-bearing direction of the slider 311 is always along the guiding direction of the chute, so as to ensure the stable cooperation between the slider 311 and the chute, prevent the positioning block 32 from shifting, and ensure that the end of the connecting corner can be kept facing the end of the short beam or the long beam during the extrusion process.

[0027] Further, a first cylinder 21 is fixedly connected to the support disc 2. The first cylinder 21 is arranged along the sliding direction of the support block 31. The support block 31 is a cylinder, and a connecting member is arranged on the support block 31. The output end of the first cylinder 21 is connected to the connecting member, and the connecting member can rotate around the central axis of the support block 31.

[0028] Specifically, to enable the first cylinder 21 to pull the support block 31 to slide reversely on the support plate 2 and restore the positioning block 32 to its initial position, in this embodiment, the support block 31 is cylindrical, the support block 31 is coaxially arranged with the above-mentioned slider 311, and a connecting member is arranged on the support block 31. Optionally, the connecting member is a ring (not shown in the figure) sleeved on the support block 31, and the ring can rotate relative to the support block 31. The output end of the first cylinder 21 is fixedly connected to the outer wall of the ring. When the first stroke of the support block 31 ends, the central axes of the support block 31, the slider 311, and the support plate 2 coincide. When the support plate 2 is driven to rotate 90°, since the ring is rotatably installed on the support block 31, the ring will revolve around the central axis of the support block 31 under the drive of the first cylinder 21. With such a setting, the first cylinder 21 can be directly connected to the support block 31 without affecting the rotation of the first cylinder 21 with the support plate 2, so as to ensure that when the first cylinder 21 contracts, it can pull the support block 31 to slide reversely in the chute on the support plate 2 and drive the positioning block 32 to restore to its initial position.

[0029] Furthermore, rotary cylinders 121 are installed at the positions of the support frame 1 corresponding to the support plate 2, and the rotary cylinders 121 drive the support plate 2 to rotate self - rotatably through swing arms 122.

[0030] Specifically, rotary cylinders 121 for driving the support plate 2 to rotate are arranged on the support table 12 where the support plate 2 is located. The rotary cylinders 121 are fixedly connected to the lower surface of the support table 12. As Figure 3 shown, a swing arm 122 is fixedly connected to the rotary cylinder 121. The end of the swing arm 122 away from the rotary cylinder 121 is bent to be parallel to the central axis of the support plate 2, and the end of the swing arm 122 away from the rotary cylinder 121 penetrates through the support table 12 and is fixedly connected to the lower surface of the support plate 2, so that the rotary cylinder 121 can drive the support plate 2 to rotate 90°. An arc - shaped groove for the swing of the swing arm 122 is formed in the support table 12 and penetrates up and down. The rotary cylinder 121 can accurately drive the support plate 2 to rotate 90°, ensuring that the first cylinder 21 can remain parallel to the chute before and after rotating with the support plate 2, thus facilitating the first cylinder 21 to drive the support block 31 to slide along the chute.

[0031] In another embodiment proposed by the present invention, the positioning block 32 includes a limiting block 321 for limiting the outside of the docking angle and a limiting post 322 for limiting the inside of the docking angle. The cross - section of the limiting block 321 is L - shaped, the cross - section of the limiting post 322 is rectangular, and the diagonals of the limiting block 321 and the limiting post 322 coincide.

[0032] Specifically, to ensure that the docking angle cannot move relative to the support block 31 during the movement of the support block 31, in this embodiment, the positioning block 32 includes a limiting block 321 and a limiting post 322. As Figure 5As shown, the cross-section of the positioning block 32 is L-shaped. One side of the positioning block 32 is arranged along the width direction of the support frame 1, and the other side of the positioning block 32 is arranged along the length direction of the support frame 1; the cross-section of the limiting column 322 is rectangular, and the two enclose an L-shaped channel with both ends open, and the shape of this channel is adapted to that of the butt joint angle; during the process of restricting the butt joint angle, the limiting block 321 contacts the outer side wall of the butt joint angle, while the limiting column 322 contacts the inner side wall of the butt joint angle, and the butt joint angle is positioned from two directions respectively, ensuring that the butt joint angle cannot move relative to the support block 31.

[0033] Further, the limiting column 322 is movably installed on the support block 31. A transmission member 5 is arranged in the support block 31. When the first cylinder 21 contracts, it first drives the limiting column 322 to contract into the support block 31 through the transmission member 5, and then pulls the support block 31 to slide reversely on the support plate 2.

[0034] Furthermore, the transmission member 5 includes an adjusting block 51 connected to the first cylinder 21. The adjusting block 51 extends into the support block 31. A support plate 52 is slidably installed on the support block 31 along its own axis. The limiting column 322 is installed on the support plate 52. An adjusting rod 521 is installed on the support plate 52. The lower end of the adjusting rod 521 is slidably connected to the adjusting block 51. During the process of the first cylinder 21 pulling the adjusting block 51 to move outward from the support block 31, the adjusting block 51 drives the support plate 52 to move downward along the axis of the support block 31 until the limiting column 322 contracts into the support block 31.

[0035] Specifically, in the above embodiment, since it is necessary to ensure the positioning effect of the butt joint angle, both the limiting block 321 and the limiting column 322 need to be in full contact with the butt joint angle. As a result, after the side frame is formed, it needs to move in the vertical direction to take out the butt joint angle from between the limiting block 321 and the limiting column 322. However, the size of the side frame is large, and it is not easy to control its movement in the vertical direction, that is, it is difficult to take out the four corner positions (four butt joint angles) of the side frame after it is formed from the corresponding positioning blocks 32; in this embodiment, a support plate 52 is slidably installed in the support block 31. The support plate 52 slides along the axis of the support block 31. The limiting column 322 is installed on the upper surface of the support plate 52, so that the limiting column 322 can displace relative to the support block 31 and thus contract into the interior of the support block 31; the lower surface of the support plate 52 is fixedly connected with an adjusting rod 521, and the output end of the first cylinder 21 is fixedly connected with an adjusting block 51, as Figures 5-7As shown, the adjustment block 51 extends into the support block 31 and can slide relative to the support block 31. The adjustment block 51 includes a first horizontal section 511, an inclined section 512, and a second horizontal section 513 connected in sequence, wherein the thickness of the first horizontal section 511 is greater than the thickness of the second horizontal section 513, and the end of the first horizontal section 511 away from the inclined section 512 is connected to the output end of the first cylinder 21, and the middle parts of the first horizontal section 511, the inclined section 512, and the second horizontal section 513 are continuously provided with a limiting groove 514 of the same depth, and the lower end of the adjustment rod 521 extends into the limiting groove 514 and is fixedly connected to a ball head 522, and the diameter of the ball head 522 is greater than that of the second horizontal section 513. The cross section of the limiting groove 514 is T-shaped for the diameter of the adjusting rod 521, so that the lower end of the adjusting rod 521 is limited by the ball head 522, so that the adjusting rod 521 cannot be separated from the adjusting block 51, and the adjusting rod 521 can not affect the rotation of the adjusting block 51 (revolving with the first cylinder 21 around the central axis of the support block 31); when the adjusting rod 521 corresponds to the first horizontal section 511, the length of the limiting column 322 extending from the upper surface of the support block 31 is the largest, and when the adjusting rod 521 corresponds to the second horizontal section 513, the limiting column 322 is completely retracted into the support block 31 (the upper surface of the limiting column 322 is flush with the upper surface of the support block 31, such as Figure 5 shown); With such arrangement, after the side frame is assembled, when the first cylinder 21 contracts, it will first pull the adjustment block 51 to move toward the outside of the support block 31. At this time, the adjustment block 51 and the adjustment rod 521 move relative to each other, and the adjustment rod 521 slides from the first horizontal section 511 to the inclined section 512 until it slides along the inclined section 512 to the second horizontal section 513. During this process, the adjustment rod 521 pulls the support plate 52 to move downward along the axial direction of the support block 31, and the support plate 52 then drives the limit column 322 to move toward the support block 31. 1; on the contrary, in the initial stage of the extension of the first cylinder 21, the adjusting block 51 is pushed to move toward the inside of the supporting block 31, and the adjusting block 51 and the adjusting rod 521 move relative to each other. The adjusting rod 521 slides from the second horizontal section 513 to the inclined section 512 until it slides along the inclined section 512 to the first horizontal section 511. During this process, the adjusting rod 521 pushes the supporting plate 52 to move upward along the axial direction of the supporting block 31, and the supporting plate 52 drives the limiting column 322 to extend outward from the upper surface of the supporting block 31.

[0036] Obviously, since the first cylinder 21 needs to revolve around the central axis of the support block 31, and the adjustment block 51 is fixed to the output shaft of the first cylinder 21, in order not to affect the first cylinder 21 revolving around the central axis of the support block 31, the central axes of the adjustment rod 521 and the support block 31 coincide with each other, and a chamber for the adjustment block 51 to rotate is opened on the support block 31, such as Figure 7As shown, when the slider 311 slides to be coaxial with the support block 31, the central axes of the adjusting rod 521 and the slider 311 also coincide. In this way, it is convenient for the adjusting block 51 to revolve around the central axis of the support block 31 driven by the first cylinder 21. At this time, the cooperation between the adjusting block 51 and the adjusting rod 521 is equivalent to the connecting member in the above embodiment.

[0037] In this embodiment, through the transmission member 5 arranged in the support block 31, when the first cylinder 21 contracts, the limit post 322 can be first retracted into the interior of the support block 31, and then the support block 31 can be pulled to slide reversely on the support plate 2, so as to cancel the restriction on the side frame while driving the support plate 2 to reset.

[0038] Furthermore, the limit post 322 is slidably installed on the support plate 52, and the limit post 322 slides along the diagonal line of the limit block 321. An elastic member for maintaining the relative position between the limit post 322 and the support plate 52 is arranged on the support plate 52. During the process that the first cylinder 21 pushes the adjusting block 51 to move into the support block 31, the adjusting block 51 first drives the limit post 322 to extend out of the support block 31, and then drives the limit post 322 to approach the limit block 321 along the diagonal line direction of the limit block 321.

[0039] Specifically, in the above embodiment, the limit post 322 directly moves along the axial direction of the support block 31. It is necessary to wait for the limit post 322 to extend out before placing the corner joint. Also, since an L-shaped channel with both ends open is formed between the limit block 321 and the limit post 322 and is adapted to the shape of the corner joint, the corner joint needs to be completely aligned with this channel to be placed in place, which is very inconvenient. In this embodiment, the limit post 322 is slidably installed on the support plate 52, and a guide groove 523 for restricting the limit post 322 to slide along the diagonal line of the limit block 321 is opened on the support plate 52. The guide groove 523 restricts the limit post 322 to slide along the diagonal line of the limit block 321. A rotating ring 524 is rotatably installed on the lower surface of the support plate 52, that is, the surface on the side away from the limit post 322. An arc-shaped protrusion 5241 is arranged on the inner wall of the rotating ring 524. As Figure 11 shown, the dimension of the protrusion 5241 along the circumferential direction of the rotating ring 524 gradually increases. The guide groove 523 runs through the support plate 52. The limit post 322 and the support plate 52 are slidably connected through a clamping block 3221. A guide post 525 is fixedly connected to the surface of the clamping block 3221 away from the limit post 322. The guide post 525 is in contact with the protrusion 5241. A disc 526 is fixedly connected to the end surface of the rotating ring 524 away from the support plate 52. The above-mentioned adjusting rod 521 is coaxially connected to the disc 526. In addition, a gear 527 is sleeved on the adjusting rod 521, and a rack 515 is fixedly connected to the first horizontal plane of the adjusting block 51. The rack 515 is matched with the gear 527.

[0040] During the process that the first cylinder 21 extends to push the adjusting block 51 to move into the supporting block 31, the adjusting rod 521 slides along the second horizontal plane towards the inclined plane and the first horizontal plane. During this process, the adjusting rod 521 pushes the supporting plate 52 and the limiting column 322 mounted on the supporting plate 52 to rise along the axial direction of the supporting block 31, so that the limiting column 322 extends out from the upper part of the supporting block 31. When the adjusting rod 521 moves relative to the adjusting block 51 to the first horizontal plane of the adjusting block 51, the gear 527 on the adjusting rod 521 and the rack 515 are in the same plane. As the adjusting rod 521 moves away from the inclined plane, the gear 527 will engage with the rack 515 and rotate under the restriction of the rack 515. During the process that the gear 527 drives the rotating ring 524 to rotate, the protrusion 5241 arranged on the inner wall of the rotating ring 524 will push the guiding column 525, so that the guiding column 525 drives the limiting column 322 to slide along the diagonal direction of the limiting block 321 on the supporting plate 52 and approach the limiting block 321.

[0041] Before assembling the side frame, first place the corner joint in the area restricted by the limiting block 321 and the limiting column 322. Since the limiting column 322 does not extend out at this time, the corner joint is relatively easy to be placed in place. Then start the first cylinder 21 to make it extend. In the early stage of the extension of the first cylinder 21, first drive the limiting column 322 to extend out from the upper part of the supporting block 31, and then drive the limiting column 322 to approach the limiting block 321 along the diagonal direction of the limiting block 321. In this way, if the corner joint is not completely abutted against the inner side wall of the limiting block 321 when placed, the corner joint can still be calibrated by using the sliding of the limiting column 322 relative to the supporting plate 52 (the movement of the limiting column 322 along the diagonal direction of the limiting block 321).

[0042] In this embodiment, an elastic member for maintaining the relative positions of the limiting column 322 and the supporting plate 52 is further arranged on the supporting plate 52. Optionally, the elastic member includes a spring 528 arranged along the length direction of the guide groove 523. One end of the spring 528 is fixedly connected to the supporting plate 52 through a connecting block, and the other end of the spring 528 abuts against or is directly connected to the limiting column 322, as Figure 7 and Figure 8 shown. A connecting block is fixedly connected to the upper surface of the supporting plate 52. A guiding rod 529 is arranged through the connecting block. The guiding rod 529 is arranged parallel to the guide groove 523, and one end of the guiding rod 529 is fixedly connected to the limiting column 322. When the spring 528 is in the natural state, the distance between the limiting column 322 and the limiting block 321 is the farthest; obviously, since both the spring 528 and the guiding rod 529 correspond to an edge of the limiting column 322, a plane can be cut on the limiting column 322 at the positions corresponding to the spring 528 and the guiding rod 529 for the connection of the guiding rod 529, and at the same time, the contact area between the spring 528 and the limiting column 322 is increased, as Figure 9 and Figure 10 shown.

[0043] After the side frame assembly is completed, in the early stage of the contraction of the first cylinder 21, the adjusting block 51 is pulled by the first cylinder 21 to move outward from the support block 31. The adjusting rod 521 slides from the first horizontal plane to the inclined plane relative to the adjusting block 51. During this process, the gear 527 rotates reversely under the restriction of the rack 515, and drives the rotating ring 524 to rotate reversely through the adjusting rod 521. At this time, the spring 528 will push the limiting column 322 to slide reversely on the support plate 52, and keep the guiding column 525 in contact with the protrusion 5241. When the adjusting rod 521 slides to the inclined plane, the ball head 522 remains in the limiting groove 514 and pulls the adjusting rod 521 to move downward. The adjusting rod 521 drives the support plate 52 to slide downward in the support block 31, so as to contract the limiting column 322 into the support block 31; that is, in the early stage of the contraction of the first cylinder 21, the limiting column 322 can be first driven to move away from the limiting block 321 along the diagonal direction of the limiting block 321, and then the limiting column 322 is driven to contract into the support block 31. With such a setting, the contact angle and the limiting column 322 will not be worn due to relative sliding, avoiding the reduction of the positioning effect caused by the wear of the limiting column 322.

[0044] In another embodiment proposed by the present invention, the limiting member 4 includes a telescopic rod 41 arranged along the width direction of the support frame 1. The two ends of the telescopic rod 41 are respectively fixedly connected to the corresponding support blocks 31. A support seat 123 is slidably installed on the support frame 1. The support seat 123 is arranged along the axial direction of the long beam, and the telescopic rod 41 penetrates through the upper part of the support seat 123.

[0045] Specifically, to ensure that during the rotation of the support disc 2, the slider 311 on the support block 31 can always be coaxial with the support disc 2, and the setting of the limiting member 4 does not affect the movement of the support block 31 in two directions (the axial direction of the short beam and the axial direction of the long beam); in this embodiment, the limiting member 4 includes a telescopic rod 41, as Figure 1 、 Figure 2 and Figure 13As shown, the telescopic rod 41 is arranged along the width direction of the support frame 1, and both ends of the telescopic rod 41 are fixedly connected to the corresponding support blocks 31. There are two groups of telescopic rods 41, and the two telescopic rods 41 are respectively arranged on the support platforms 12 at both ends of the upper surface of the support frame 1. In addition, a support seat 123 is slidably installed at a position corresponding to the middle of the telescopic rod 41 on the support platform 12. A guide groove for restricting the support seat 123 from sliding along the length direction of the support frame 1 is opened on the support platform 12, and the telescopic rod 41 penetrates through the upper part of the support seat 123; preferably, a through hole for matching the telescopic rod 41 is opened in the upper part of the support seat 123 along the width direction of the support frame 1, and when the telescopic rod 41 contracts to the shortest, the support blocks 31 corresponding to both ends of the telescopic rod 41 both slide to the middle of the support disk 2 where they are located; in this embodiment, the telescopic rod 41 connects the two support blocks 31 into a whole, so that the two support blocks 31 will not rotate with the support disk 2 where they are located, and by adjusting the length of the telescopic rod 41, when the telescopic rod 41 contracts to the shortest, the support blocks 31 corresponding to both ends of the telescopic rod 41 just slide to the middle of the support disk 2, that is, the first stroke of the support block 31 just ends, positioning the support block 31 to a certain extent, and ensuring that when the first stroke of the support block 31 ends, the slider 311 on the support block 31 can just coincide with the central axis of the support disk 2 where it is located; and after the support disk 2 rotates 90°, when the first cylinder 21 continues to drive the corresponding support block 31 to slide on the support disk 2, the telescopic rod 41 will move along the length direction of the support frame 1 under the drive of the support block 31. At this time, the telescopic rod 41 drives the support seat 123 to slide along the length direction of the support frame 1, and there will be no interference with the sliding of the support block 31 in two directions (the length direction and the width direction of the support frame 1).

[0046] Furthermore, cushion blocks 42 are fixedly connected to positions near both ends of the telescopic rod 41. One side of the upper surface of the cushion block 42 is fixedly connected with a baffle 421, and a stop rod 422 is rotatably installed on the other side of the upper surface of the cushion block 42. A torsion spring for maintaining the stop rod 422 in a vertical state is arranged at the installation position of the stop rod 422.

[0047] Specifically, to ensure that the short beam can move together with the connecting angle after connecting the connecting angle and the short beam, in this embodiment, cushion blocks 42 are fixedly connected to positions near both ends of the telescopic rod 41, as Figure 1 、 Figure 2 and Figure 13As shown, for the convenience of installing the spacer block 42, in this embodiment, the telescopic rod 41 includes a first square rod 411 and a second square rod 412. A square groove for accommodating the second square rod 412 is formed in the first square rod 411. One side of the upper surface of the spacer block 42 is fixedly connected with a baffle 421, and a stop rod 422 is rotatably installed on the other side of the upper surface of the spacer block 42. The stop rod 422 is rotatably connected to the spacer block 42 through a rotating shaft, and a torsion spring (not shown in the figure) is sleeved on the rotating shaft. The torsion spring maintains the stop rod 422 in a vertical state to ensure that the short beam is limited. On the telescopic rod 41 on the left side of the support frame 1 in Figure 2 the baffle 421 is installed on the left side of the spacer block 42 corresponding to the telescopic rod 41, and the stop rod 422 is rotatably installed on the right side of the spacer block 42 corresponding to the telescopic rod 41, while Figure 2 on the telescopic rod 41 on the right side of the support frame 1 in

[0048] the baffle 421 is arranged on the right side, and the stop rod 422 is arranged on the left side; with such a setting, when the first air cylinder 21 contracts and pulls the support block 31 to move in the reverse direction, the short beam can push the stop rod 422 to rotate to a horizontal state, so that the short beam can be smoothly separated from the spacer block 42.

[0048] In another embodiment proposed by the present invention, an extrusion member for positioning the long beam is provided on the support frame 1. The extrusion member includes a fixed block 124 fixedly connected to the support frame 1 and a movable block 125 slidably installed on the support frame 1. The movable block 125 is driven to extrude the long beam towards the side where the fixed block 124 is located.

[0049] Furthermore, a second air cylinder 6 is installed on the support frame 1 along its own width direction. The second air cylinder 6 and the movable block 125 are arranged in one-to-one correspondence, and the elongation of the second air cylinder 6 drives the movable block 125 to move towards its corresponding fixed block 124.

[0050] Specifically, as shown in Figure 1 and Figure 2 to ensure that the long beam can be accurately restricted to the set position after being placed, so that when the support block 31 moves along the length direction of the support frame 1, the joint angle can be directly opposite to the end of the long beam; in this embodiment, an extrusion member for positioning the long beam is also provided on the support frame 1. The extrusion member includes a fixed block 124 and a movable block 125. The fixed block 124 is fixedly installed on a support platform 12 provided at a corresponding position on the frame body 11. The movable block 125 is slidably connected to the corresponding support platform 12, and the movable block 125 is along the width direction of the frame body 11, that is Figure 2For vertical sliding in the view, a second cylinder 6 for driving the movable block 125 to slide is further provided on the support frame 1. The second cylinder 6 is fixedly connected to the corresponding support platform 12, and the second cylinder 6 is arranged along the width direction of the frame body 11. Preferably, the cross-sections of both the fixed block 124 and the movable block 125 are approximately C-shaped, and two groups of rollers are rotatably installed on both the fixed block 124 and the movable block 125. The two groups of rollers are arranged vertically. During the positioning of the long beam, the rollers are in contact with the long beam. Since the rollers can rotate freely, when the long beam is pushed by the corner joint and moves along its own length direction during the connection with the corner joint, the friction between the long beam and the rollers is small. Figure 2 In it, three sets of pressing members are provided on both long sides of the frame body 11. The pressing members correspond to the two ends and the middle of the long beam respectively. Each movable block 125 is driven to push the long beam towards the position where the fixed block 124 is located simultaneously from the two ends and the middle of the long beam, so as to realize the precise positioning of the long beam.

[0051] Only some exemplary embodiments of the present invention are described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A side frame production press-fitting and positioning mechanism, including a support frame, and positioning members are provided at the four corner positions of the support frame, characterized in that, Support discs are rotatably installed at the four corners of the support frame. The positioning member includes a support block slidably installed on the support disc. A positioning block is fixedly connected to the support block. The support block is driven to slide radially along the support disc. When the support block slides to coincide with the central axis of the support disc, the support disc is driven to rotate to adjust the guiding direction of the support block. A limiting member for preventing the support disc from rotating along with the support disc is also provided on the support frame.

2. The press-fitting and positioning mechanism for side frame production according to claim 1, wherein A first cylinder is fixedly connected to the support disc. The first cylinder is arranged along the sliding direction of the support block. The support block is a cylinder, and a connecting member is provided on the support block. The output end of the first cylinder is connected to the connecting member, and the connecting member can rotate around the central axis of the support block.

3. The press-fitting and positioning mechanism for side frame production according to claim 1, wherein, Rotary cylinders are installed at the positions corresponding to the support discs on the support frame. The rotary cylinders drive the support discs to rotate self - axially through swing arms.

4. A side frame production press-fitting and positioning mechanism according to claim 2, characterized in that, The positioning block includes a limiting block for limiting the outer side of the docking angle and a limiting column for limiting the inner side of the docking angle. The cross - section of the limiting block is L - shaped, the cross - section of the limiting column is rectangular, and the diagonals of the limiting block and the limiting column coincide.

5. The press-fitting and positioning mechanism for side frame production according to claim 4, characterized in that, The limiting column is movably installed on the support block. A transmission member is arranged in the support block. When the first cylinder contracts, it first drives the limiting column to contract into the support block through the transmission member, and then pulls the support block to slide reversely on the support disc.

6. The press-fitting and positioning mechanism for side frame production according to claim 5, characterized in that, The transmission member includes an adjusting block connected to the first cylinder. The adjusting block extends into the support block. A support plate is slidably installed on the support block along its own axial direction. The limiting column is installed on the support plate. An adjusting rod is installed on the support plate. The lower end of the adjusting rod is slidably connected to the adjusting block. During the process that the first cylinder pulls the adjusting block to move outward from the support block, the adjusting block drives the support plate to move downward along the axial direction of the support block until the limiting column contracts into the support block.

7. A side frame production press-fitting and positioning mechanism according to claim 1, characterized in that, The limiting member includes a telescopic rod arranged along the width direction of the support frame. The two ends of the telescopic rod are respectively fixedly connected to the corresponding support blocks. A support seat is slidably installed on the support frame. The support seat is arranged along the axial direction of the long beam. The telescopic rod penetrates through the upper part of the support seat.

8. A side frame production press-fitting and positioning mechanism according to claim 7, characterized in that, Pads are fixedly connected to the positions near the two ends of the telescopic rod. On one side of the upper surface of the pad, a baffle is fixedly connected, and on the other side of the upper surface of the pad, a stop rod is rotatably installed. A torsion spring for maintaining the stop rod in a vertical state is arranged at the installation position of the stop rod.

9. The press-fitting and positioning mechanism for side frame production according to claim 1, wherein An extrusion member for positioning the long beam is provided on the support frame. The extrusion member includes a fixed block fixedly connected to the support frame and a movable block slidably installed on the support frame. The movable block is driven to extrude the long beam towards the side where the fixed block is located.

10. A side frame production press-fitting and positioning mechanism according to claim 9, characterized in that, A second cylinder is installed on the support frame along its own width direction. The second cylinders and the movable blocks are arranged in one - to - one correspondence, and the elongation of the second cylinder drives the movable block to move towards its corresponding fixed block.

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