Assembling auxiliary device and method for sofa iron stand production

Abstract

The invention relates to the technical field of sofa production, in particular to an assembling auxiliary device and method for sofa iron stand production. Comprising a base, the base is in sliding connection with two first flitch plates, the base is rotationally connected with a first driving rod, the base is in sliding connection with two sliding shells, the sliding shells are in sliding connection with symmetrically-distributed connecting pieces, the connecting pieces are provided with second flitch plates, the base is rotationally connected with a second driving rod, and the second flitch plates are arranged on the second driving rod. The opposite sides of the second flitch plates symmetrically distributed on the same sliding shell are slidably connected with first bases, and the first bases are provided with mounting rods. By rotating the first driving rod and the second driving rod, the positions of the first flitch plate, the sliding shell and the second flitch plate are adjusted, so that the formed frame is consistent with the sofa iron stand in shape, different parts of the sofa iron stand can be conveniently positioned, and meanwhile, the sofa iron stand positioning device can adapt to sofa iron stands with different shapes.

Description

Technical Field

[0001] This invention relates to the field of sofa manufacturing technology, and in particular to an assembly auxiliary device and method for producing sofa iron frames. Background Technology

[0002] Sofas are an indispensable piece of furniture in modern homes and commercial spaces, and their core supporting component is usually a metal frame. Sofa frames are generally assembled from various metal tubes and profiles (such as square tubes, round tubes, L-shaped profiles, etc.) of different specifications and shapes through welding, screw connections, or snap fasteners. The stability, symmetry, and precision of the structure directly determine the overall strength, lifespan, and seating comfort of the sofa.

[0003] Currently, some larger factories customize positioning fixtures for specific sofa frame styles. These fixtures typically include components such as a base plate, positioning pins, stops, and clamps, but they are usually only suitable for a single frame model. Once the product is updated or different frame specifications need to be produced, the original fixtures become unusable and must be redesigned and manufactured. This not only increases costs but also extends production preparation time, making it difficult to meet the current market's demand for flexible production of multiple varieties and small batches. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides an assembly auxiliary device and method for producing sofa iron frames.

[0005] The technical solution is as follows: An assembly auxiliary device for producing sofa iron frames includes a base, two first plates slidably connected to the base, a first drive rod rotatably connected to the base for synchronously moving the two first plates, two sliding shells slidably connected to the base, symmetrically distributed connecting members slidably connected to the sliding shells, the connecting members being slidably connected to the corresponding first plates, the connecting members being provided with second plates, the base being rotatably connected to the base with the second drive rod for synchronously moving the two sliding shells, a first seat slidably connected to the opposite side of the symmetrically distributed second plates on the same sliding shell, the first seat being provided with mounting rods, the symmetrically distributed mounting rods on the same sliding shell being slidably connected to a fixed shell, the fixed shell being provided with mounting shells, the mounting shells being provided with clamping modules, and a first locking rod threadedly connected to the first seat for pressing adjacent second plates.

[0006] Furthermore, the fixed housing is threadedly connected to a second locking rod for pressing against the adjacent mounting rod, and the mounting housing is threadedly connected to a third locking rod for pressing against the adjacent fixed housing. The first seat is hinged to the adjacent mounting rod, and the fixed housing is slidably connected to the adjacent mounting housing.

[0007] Furthermore, the connector is rotatably connected to a rotating rod, the rotating rod is slidably connected to the adjacent first plate, the rotating rod is threadedly connected to a locking block, the locking block is slidably connected to the adjacent connector, the locking block is used to press the adjacent second plate, and the second plate is rotatably connected to the adjacent connector.

[0008] Furthermore, it also includes symmetrically distributed side fixing mechanisms, which are respectively disposed between two second plates close to the same first plate, for clamping the side of the workpiece. The side fixing mechanism includes symmetrically distributed second seats, which are slidably connected to the corresponding second plates. The second seats are hinged to support rods, and the symmetrically distributed support rods rotate together and are slidably connected to mounting sleeves. The mounting sleeves are slidably connected to sliding seats, and the sliding seats are provided with clamping mechanisms for clamping the side of the workpiece.

[0009] Furthermore, the clamping mechanism includes a clamping seat, which is rotatably connected to an adjacent sliding seat. The clamping seat is slidably connected to a first clamping plate and a second clamping plate. The clamping seat is rotatably connected to a limiting frame, and a first elastic element is provided between the two. The limiting frame is used to guide the first clamping plate. The second clamping plate is hinged to a telescopic connecting rod, which is rotatably connected to the limiting frame. The clamping seat is fixedly connected to a guide frame, which is used to guide the limiting frame. The limiting frame is fixedly connected to a fixing post.

[0010] Furthermore, the second seat is threaded with a fourth locking rod for pressing against the adjacent second plate, the mounting sleeve is threaded with two fifth locking rods for pressing against the adjacent support rods, the clamping seat is threaded with a sixth locking rod for pressing against the adjacent sliding seat, and the sliding seat is threaded with a seventh locking rod for pressing against the adjacent mounting sleeve.

[0011] Furthermore, it also includes symmetrically distributed fine-tuning mechanisms, each disposed on the clamping seat, for adjusting the position of adjacent second clamping plates. Each fine-tuning mechanism includes a third drive rod, which is rotatably connected to the adjacent clamping seat. The third drive rod passes through the adjacent second clamping plate and is threadedly connected to a pressing block, which is used to push the adjacent second clamping plate.

[0012] Furthermore, the fixed column is fixedly connected to symmetrically distributed fixed sleeves, the fixed sleeves are slidably connected to extrusion rods, a second elastic element is fixedly connected between the fixed sleeves and adjacent extrusion rods, and the fixed column is threadedly connected to a drive housing, the drive housing is used to push the symmetrically distributed extrusion rods, and the extrusion rods are used to extrude adjacent guide frames.

[0013] Furthermore, a first interceptor and a second interceptor are rotatably connected to the second plate. The first interceptor limits the adjacent support rods, and the second interceptor limits the adjacent mounting rods.

[0014] An assembly auxiliary method for producing sofa iron frames, based on the aforementioned assembly auxiliary device for producing sofa iron frames, includes the following specific operating steps: Step 1: According to the size of the workpiece, rotate the first drive rod and the second drive rod in sequence to adjust the distance between the two first plates, the two sliding shells, and the distance between the symmetrically distributed second plates; Step 2: By controlling the first locking rod to release the limit on the first seat, the height of the clamping module is adjusted. By controlling all the second locking rods and all the third locking rods to release the limit on the fixed shell and the mounting shell, the position of the clamping module is adjusted. Step 3: According to the shape of the workpiece, rotate the rotating rod in sequence to release the locking block from limiting the adjacent second plate, and adjust the tilt of the second plate; Step 4: According to the size of the workpiece, rotate the fourth locking rod in sequence to release the limit on the adjacent second seat, adjust the height and tilt of the mounting sleeve, thereby changing the vertical position of the first clamping plate and the second clamping plate; Step 5: By controlling the fifth and seventh locking rods, release the limit on the mounting sleeve and sliding seat, thereby readjusting the horizontal position of the first and second clamping plates; Step Six: By controlling the sixth locking lever, release the limit on the clamping seat, adjust the angle of the clamping seat, and thus adjust the clamping direction of the first clamping plate and the second clamping plate; Step 7: Press the fixed column, the limiting frame begins to deflect and the first clamping plate and the second clamping plate move towards each other. Adjust the distance between the first clamping plate and the second clamping plate in this way, rotate the drive housing so that the extrusion rod contacts and extrudes the guide frame, thereby limiting the limiting frame.

[0015] Compared with the prior art, the present invention has the following advantages: by rotating the first drive rod and the second drive rod, the present invention adjusts the position between the first plate, the sliding shell and the second plate so that the frame formed by them is consistent with the shape of the sofa frame, which facilitates the positioning of different parts of the sofa frame and can adapt to sofa frames of different shapes.

[0016] This invention releases the restriction on the adjacent second plate by adjusting the position of the locking block, and adjusts the angle of the second plate so that the second plate fits the shape of the sofa frame better.

[0017] This invention uses a first clamping plate and a second clamping plate to clamp and fix the parts at the armrest of the sofa frame, which facilitates the connection of the parts at this position. At the same time, by adjusting the position of the sliding seat and the angle of the clamping seat, the clamping position and clamping direction of the first clamping plate and the second clamping plate can be changed, thereby adapting to sofa frames of different shapes. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is an exploded three-dimensional view of the base, first mounting plate, and first drive rod of the present invention. Figure 3 This is an exploded three-dimensional view of the sliding shell and connector of the present invention; Figure 4 This is a three-dimensional structural diagram of the mounting rod and fixing shell of the present invention; Figure 5 This is a three-dimensional structural diagram of the clamping module and the first locking rod of the present invention; Figure 6 This is a three-dimensional structural diagram of the rotating rod and locking block of the present invention; Figure 7 This is a three-dimensional structural diagram of the first and second interceptor frames of the present invention; Figure 8 This is a three-dimensional structural diagram of the second seat and support rod of the present invention; Figure 9 This is a three-dimensional structural cross-sectional view of the second seat and support rod of the present invention; Figure 10 This is a three-dimensional structural diagram of the first and second clamping plates of the present invention; Figure 11 This is a three-dimensional structural diagram of the fixing sleeve and the extrusion rod of the present invention; Figure 12 This is an exploded three-dimensional view of the components at the clamping seat of the present invention.

[0019] Reference numerals: 1-Base, 2-First plate, 3-First drive rod, 4-Sliding shell, 5-Connector, 6-Second plate, 7-Second drive rod, 8-First seat, 9-Mounting rod, 10-Fixing shell, 11-Mounting shell, 12-Clamping module, 13-First locking rod, 14-Second locking rod, 15-Third locking rod, 21-Rotating rod, 22-Locking block, 31-Second seat, 32-Support rod, 33-Mounting sleeve, 3 4-Sliding seat, 35-Fourth locking rod, 41-Clamping seat, 42-First clamping plate, 43-Second clamping plate, 44-Limiting frame, 45-Telescopic connecting rod, 46-Guide frame, 47-Fixed column, 51-Third driving rod, 52-Extrusion block, 61-Fixed sleeve, 62-Extrusion rod, 63-Drive housing, 71-First intercepting frame, 72-Second intercepting frame, 81-Fifth locking rod, 82-Sixth locking rod, 83-Seventh locking rod. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. The processed part referred to herein is a sofa frame (such as...). Figure 2 and Figure 3 As shown in the figure, it mainly includes base parts, peripheral parts, backrest parts, backrest connecting parts and armrest parts.

[0021] Example 1

[0022] An assembly auxiliary device for the production of sofa iron frames, such as Figures 1-6As shown, the device includes a base 1, with two first plates 2 slidably connected to the base 1, which are distributed front to back. The two first plates 2 are used to fix the front and rear sides of the sofa frame. The base 1 is rotatably connected to a first drive rod 3 for driving the two first plates 2 to move synchronously. The first drive rod 3 is provided with symmetrically distributed threads, and the first plates 2 are connected to the corresponding threads on the first drive rod 3. The base 1 is slidably connected to two sliding shells 4, which are distributed left to right, for fixing the left and right sides of the workpiece. The sliding shells 4 are slidably connected to two connecting pieces 5, which are symmetrically distributed front to back. The connecting pieces 5 are slidably connected to the corresponding first plates 2. The connecting pieces 5 are provided with second plates 6 (in this embodiment, the connecting pieces 5 and the adjacent second plates 6 are fixedly connected, and this is limited to this embodiment). The base 1 is rotatably connected to a second drive rod 7 for driving the two sliding shells 4 to move synchronously. The moving rod 7 is provided with symmetrically distributed threads. The two sliding shells 4 are respectively connected to the corresponding threads. The two second plates 6 on the same sliding shell 4 are slidably connected to the opposite sides of the first seat 8. The number of first seats 8 can be increased according to the specific shape of the workpiece, that is, a second plate 6 can be provided with several first seats 8. However, this article describes one first seat 8. The first seat 8 is provided with a mounting rod 9 (in this embodiment, the first seat 8 and the adjacent mounting rod 9 are fixedly connected). The mounting rods 9 symmetrically distributed on the same sliding shell 4 are slidably connected to a fixed shell 10. The fixed shell 10 is used to fix the upper side of the workpiece. The fixed shell 10 is provided with a mounting shell 11 (in this embodiment, the fixed shell 10 and the adjacent mounting shell 11 are fixedly connected). The mounting shell 11 is equipped with a clamping module 12. The clamping module 12 is an existing clamping device, mainly composed of a lever, multiple connecting rods and clamping plates (e.g. Figure 5 As shown), the clamping module 12 is used to clamp and fix the workpiece. The first seat 8 is provided with a first locking rod 13 for limiting itself. The first locking rod 13 is a bolt. The first locking rod 13 limits the first seat 8 by pressing the second plate 6.

[0023] The working principle of this embodiment: When using this auxiliary device to produce workpieces, first determine the shape and size of the workpiece, then adjust the positions of the first mounting plate 2, sliding shell 4, second mounting plate 6, and clamping module 12 so that the shape formed by these parts matches the workpiece. Figure 2Taking the processed part as an example, the first drive rod 3 is rotated, which drives the two first plates 2 to move. The distance between the two first plates 2 is adjusted so that the distance between the two first plates 2 is equal to the front-back dimension of the bottom part of the processed part. Then the rotation of the first drive rod 3 is stopped. During the movement of the first plates 2, the first plates 2 drive the corresponding second plates 6 to move through the adjacent connecting parts 5. In this way, the distance between the two corresponding second plates 6 is adjusted so that the distance between the two corresponding second plates 6 corresponds to the dimensions of the peripheral parts and the backrest parts of the processed part. The connecting parts 5 slide relative to the adjacent sliding shell 4. During the movement of the second plates 6, the second plates 6 drive the mounting rod 9 to move through the first seat 8 on them. The mounting rod 9 moves relative to the adjacent fixed shell 10.

[0024] After the first mounting plate 2 is adjusted, the second drive rod 7 is rotated. The second drive rod 7 drives the two sliding shells 4 to move. The distance between the two sliding shells 4 is adjusted so that the distance between the two sliding shells 4 is equal to the left and right dimensions of the bottom part of the workpiece. Then the rotation of the second drive rod 7 is stopped. The sliding shells 4 drive the parts on them to move synchronously. In this way, the distance between the two corresponding second mounting plates 6 on the left and right is adjusted so that the distance between the two corresponding second mounting plates 6 on the left and right corresponds to the dimensions of the peripheral parts and backrest parts of the workpiece.

[0025] After the position of the sliding shell 4 is adjusted, rotate all the first locking rods 13 in sequence to release the limit of the corresponding first seat 8 and adjust the height of all the first seats 8 so that the height of the first seat 8 is slightly greater than the height of the backrest connecting part of the workpiece. Then rotate the first locking rods 13 in the opposite direction to fix all the first seats 8.

[0026] After the first mounting plate 2, sliding shell 4 and first base 8 are initially adjusted, the assembly of the processed parts begins. The bottom parts of the processed parts are placed on the base 1, so that the first mounting plate 2 and sliding shell 4 are respectively attached to the corresponding bottom parts. In this way, the bottom parts of the processed parts are positioned by all the first mounting plates 2 and sliding shells 4, reducing the steps of repeated measurement during the assembly process and ensuring the accuracy of the position between the parts. Then, the bottom parts that are in contact with each other are connected (including but not limited to welding).

[0027] After the bottom parts of the workpiece are connected, the assembly of the peripheral parts and backrest parts continues. During this process, all the second plates 6 are attached to the corresponding peripheral parts and backrest parts respectively. In this way, the peripheral parts and backrest parts are positioned by the second plates 6 to ensure stable connection between parts at different positions of the workpiece. Then, the parts that are in contact with each other are connected (including but not limited to welding).

[0028] After the backrest and surrounding parts are connected, the assembly of the backrest connecting parts begins. First, this part is placed in the designated position to align with the backrest part. Then, the lever of the clamping module 12 is controlled. The lever of the clamping module 12 drives the clamping plate to rotate clockwise via multiple connecting rods (as shown in the image). Figure 5 (Based on the front view direction), the clamping plate of the clamping module 12 contacts and fixes the backrest connecting part, and then connects the backrest connecting part to the backrest part.

[0029] After connecting all the parts, the assembly of the processed part is completed. Then, the lever of the reverse control clamping module 12 is used to make the clamping plate lose its fixation on the backrest connecting parts. Then, the connected processed part is taken out. After that, the positions of the first plate 2, the sliding shell 4, and the second plate 6 are no longer adjusted, and the above assembly process is repeated. Then, the parts of the next processed part are connected in sequence.

[0030] Example 2

[0031] This embodiment is an improvement upon embodiment 1, as detailed below: like Figure 4 and Figure 5 As shown, the fixed shell 10 is equipped with two symmetrically distributed second locking rods 14. The second locking rods 14 are bolts. The second locking rods 14 limit the adjacent fixed shells 10 by pressing the adjacent mounting rods 9. The mounting shell 11 is equipped with a third locking rod 15. The third locking rod 15 is a bolt. The third locking rod 15 limits the adjacent mounting shell 11 by pressing the adjacent fixed shell 10. The first seat 8 is hinged to the adjacent mounting rod 9, and the fixed shell 10 is slidably connected to the adjacent mounting shell 11.

[0032] like Figure 4 and Figure 6 As shown, the connector 5 is rotatably connected to a rotating rod 21, which consists of a knob and a threaded rod. The rotating rod 21 is slidably connected to the adjacent first plate 2. The rotating rod 21 is threadedly connected to a locking block 22, which is slidably connected to the adjacent connector 5. The locking block 22 is used to press the adjacent second plate 6. The side of the locking block 22 near the adjacent second plate 6 is set with a rough surface. This rough surface is used to limit the second plate 6. The second plate 6 is rotatably connected to the adjacent connector 5.

[0033] The working principle of this embodiment: Following the working principle of Embodiment 1, when adjusting the distance between the two first mounting plates 2, first rotate the two second locking rods 14 of the fixed shell 10 to remove the pressure on the adjacent mounting rods 9, thereby releasing the limitation on the adjacent fixed shell 10. After that, the fixed shell 10 can slide relative to the two mounting rods 9 on it.

[0034] During the connection of the backrest connecting parts, the position of the clamping module 12 can be adjusted according to the specific position of the parts. The specific process is as follows: push the fixed shell 10 so that the fixed shell 10 slides back and forth along the two mounting rods 9 on it. The fixed shell 10 drives the clamping module 12 to move through the mounting shell 11 on it (preliminary adjustment). During this process, if the clamping module 12 is adjusted to a suitable position, stop moving the fixed shell 10 and rotate the two second locking rods 14 of the fixed shell 10 in the opposite direction so that the two second locking rods 14 press the corresponding mounting rods 9 respectively, thereby fixing the position of the fixed shell 10.

[0035] If the clamping module 12 is not adjusted to a suitable position and the fixed shell 10 is about to separate from the corresponding mounting rod 9, stop moving the fixed shell 10, repeat the above steps to fix the fixed shell 10, then rotate the third locking rod 15 to release the pressure on the adjacent fixed shell 10, thereby releasing the limitation on the adjacent mounting shell 11. Then start moving the mounting shell 11 so that the mounting shell 11 drives the clamping module 12 to slide along the fixed shell 10 (fine adjustment) until the clamping module 12 moves to a suitable position. Then rotate the third locking rod 15 in the opposite direction to fix the mounting shell 11. This completes the adjustment of the position of the clamping module 12.

[0036] Following the working principle of Embodiment 1, after the distance between the two corresponding second plates 6 on the left and right and the two corresponding second plates 6 on the front and back is adjusted, if the backrest part of the processed part is in an inclined state (e.g. Figure 3 When the workpiece is in the shape shown, the two second plates 6 on the right side need to be adjusted to a tilted position so that all the second plates 6 completely conform to the shape of the workpiece. The specific operation is as follows: When it is necessary to adjust the tilt angle of the second plate 6, rotate the rotating rod 21 in sequence. The rotating rod 21 drives the locking block 22 to move. The locking block 22 slides along the adjacent connecting piece 5 and loses contact with the adjacent second plate 6. At this time, the second plate 6 is in a free-rotating state, and the tilt angle of the second plate 6 is adjusted. After the tilt angle of the second plate 6 is adjusted, rotate the rotating rod 21 in the opposite direction. The rotating rod 21 drives the locking block 22 to move and make the locking block 22 contact and press with the second plate 6. In this way, the second plate 6 is limited, and the adjustment of the tilt angle of the second plate 6 is completed.

[0037] Example 3

[0038] Based on Embodiment 2, the technical solution of this application is further improved, specifically as follows: like Figure 1 and Figures 7-9As shown, it also includes two symmetrically distributed side fixing mechanisms. The number of side fixing mechanisms can be changed according to the actual situation. They are respectively set between two second plates 6 near the same first plate 2, and are used to clamp the side of the workpiece. The side fixing mechanism includes two second seats 31 symmetrically distributed on the left and right. The two second seats 31 are slidably connected to the corresponding second plates 6. The second seats 31 are hinged to support rods 32. The two support rods 32 rotate together and are slidably connected to mounting sleeves 33. The mounting sleeves 33 can slide laterally along the two support rods 32, and can also rotate along the axis of the support rods 32 to adjust the position of the sliding seat 34. The mounting sleeves 33 are slidably connected to the sliding seat 34. The sliding seat 34 is provided with a clamping mechanism, which is used to clamp the side of the workpiece.

[0039] like Figures 7-12 As shown, the clamping mechanism includes a clamping seat 41, which is rotatably connected to an adjacent sliding seat 34. The clamping seat 41 is slidably connected to a first clamping plate 42 and two second clamping plates 43. Rubber pads are provided on opposite sides of the first clamping plate 42 and the second clamping plate 43. A limit frame 44 is rotatably connected to the clamping seat 41, and a first elastic element, a spring, is provided between the two to drive the limit frame 44 to move upwards and reset. An inclined groove is provided inside the limit frame 44, and a protruding post is provided on the upper side of the first clamping plate 42. The inclined groove of the limit frame 44 is used for... The first clamping plate 42 is guided by the protruding post, so that the first clamping plate 42 slides along the clamping seat 41. The upper side of the second clamping plate 43 is hinged with a telescopic connecting rod 45, which is rotatably connected to the limiting frame 44. The limiting frame 44 pushes the second clamping plate 43 to move through the telescopic connecting rod 45. The clamping seat 41 is fixedly connected with a guide frame 46, which is provided with an arc-shaped groove. The arc-shaped groove of the guide frame 46 is used to guide the limiting frame 44. The limiting frame 44 is fixedly connected with a fixing post 47, which is used to drive the limiting frame 44 to move for easy operation.

[0040] like Figures 8-10 and Figure 12 As shown, the second seat 31 is threadedly connected to a fourth locking rod 35 for pressing against the adjacent second plate 6. The fourth locking rod 35 can limit the vertical movement of the second seat 31. The mounting sleeve 33 is threadedly connected to two fifth locking rods 81 for pressing against the adjacent support rod 32. The fifth locking rods 81 can limit the lateral movement of the mounting sleeve 33. The clamping seat 41 is threadedly connected to a sixth locking rod 82 for pressing against the adjacent sliding seat 34. The sixth locking rod 82 can limit the rotation of the clamping seat 41. The sliding seat 34 is threadedly connected to a seventh locking rod 83 for pressing against the adjacent mounting sleeve 33. The seventh locking rod 83 can limit the lateral movement of the sliding seat 34. The fourth locking rod 35, the fifth locking rod 81, the sixth locking rod 82 and the seventh locking rod 83 are all bolts.

[0041] like Figures 8-12 As shown, two symmetrically distributed fixed sleeves 61 are fixedly connected to the fixed column 47. A pressing rod 62 is slidably connected inside the fixed sleeve 61. The pressing rod 62 is composed of a cylinder and a hemisphere, and the hemisphere of the pressing rod 62 is made of rubber. A second elastic element, which is a spring, is fixedly connected between the fixed sleeve 61 and the adjacent pressing rod 62 to drive the adjacent pressing rod 62 to reset. The fixed column 47 is threadedly connected to a drive housing 63. The drive housing 63 is used to push the symmetrically distributed pressing rods 62. The hemisphere of the pressing rod 62 is used to press the adjacent guide frame 46.

[0042] The working principle of this embodiment: Following the working principle of Embodiment 1, when adjusting the distance between the two corresponding second plates 6 on the left and right, rotate the two fifth locking rods 81 on the mounting sleeve 33 to release the pressure of the fifth locking rods 81 on the adjacent support rods 32. Then, during the movement of the two corresponding second plates 6 on the left and right, the second plates 6 drive the support rods 32 to move through the second seats 31 on them, so that the support rods 32 slide with the adjacent mounting sleeves 33. After the position of the second plates 6 is adjusted, the position of the first clamping plate 42 and the second clamping plate 43 can be adjusted laterally according to the connection position of the handrail parts. First, move the mounting sleeve 33 left and right. The mounting sleeve 33 drives all the parts on it to move synchronously through the sliding seat 34. During this process, if the first clamping plate 42 and the second clamping plate 43 have moved to the appropriate position, stop moving the mounting sleeve 33 and reverse the fifth locking rod. 81, thereby fixing the position of the mounting sleeve 33; if the first clamping plate 42 and the second clamping plate 43 have not moved to the appropriate position and the mounting sleeve 33 is about to detach from the adjacent support rod 32, stop moving the mounting sleeve 33 and rotate the fifth locking rod 81 in the opposite direction to fix the position of the mounting sleeve 33. Then rotate the seventh locking rod 83, and the seventh locking rod 83 loses its pressure on the adjacent mounting sleeve 33, thereby releasing the limitation on the adjacent sliding seat 34. Then start moving the sliding seat 34. The sliding seat 34 drives the first clamping plate 42 and the second clamping plate 43 to move through the clamping seat 41 until the first clamping plate 42 and the second clamping plate 43 move to the appropriate position. Then stop moving the sliding seat 34 and rotate the seventh locking rod 83 in the opposite direction to limit the sliding seat 34. In this way, the adjustment of the horizontal position of the first clamping plate 42 and the second clamping plate 43 is completed.

[0043] When connecting the handrail parts on the workpiece, the vertical position of the second seat 31 is adjusted according to the position of the handrail parts. The fourth locking rod 35 is rotated in sequence to release the pressure of the fourth locking rod 35 on the adjacent second plate 6, that is, to release the limitation on the adjacent second seat 31. Then, the two corresponding second seats 31 on the left and right move synchronously. The two second seats 31 move together through the support rod 32 to drive the mounting sleeve 33 to move. The mounting sleeve 33 drives all the parts on it to move synchronously until the position of the first clamping plate 42 and the two second clamping plates 43 are connected to the handrail parts. Then, the movement of the second seat 31 is stopped, and the fourth locking rod 35 is rotated in the opposite direction to fix the second seat 31.

[0044] Based on adjusting the height of the second seat 31 in the upper section, if the armrest parts are in a tilted state (such as...) Figure 3 As shown), the positions of the two corresponding second seats 31 on the left and right are adjusted separately according to the tilt angle of the armrest parts, so that the tilt angle of the line connecting the two second seats 31 is consistent with the tilt angle of the armrest parts.

[0045] After the height of the first clamping plate 42 and the two second clamping plates 43 are adjusted, press the fixing post 47. The fixing post 47 drives the limiting frame 44 to deflect downward. The limiting frame 44 slides along the guide frame 46 and squeezes the adjacent first elastic element. The limiting frame 44 guides the first clamping plate 42, so that the first clamping plate 42 moves closer to the corresponding second clamping plate 43. At the same time, the limiting frame 44 pushes the second clamping plate 43 through the telescopic connecting rod 45, so that the second clamping plate 43 moves in opposite directions to the first clamping plate 42 until the first clamping plate 42 moves to the connection position of the handrail part. Then stop pressing the limiting frame 44. At this time, the position adjustment of the first clamping plate 42 and the second clamping plate 43 is completed. Then insert the handrail part between the first clamping plate 42 and the second clamping plate 43. In this way, the handrail part is positioned by the first clamping plate 42 and the second clamping plate 43, which facilitates the connection of the handrail part and ensures the accurate positioning of the handrail part.

[0046] After stopping the pressing of the limiting frame 44, the drive housing 63 is rotated, and the drive housing 63 presses the adjacent pressing rod 62, causing the pressing rod 62 to gradually approach the guide frame 46. The pressing rod 62 compresses the second elastic element until the pressing rod 62 contacts and presses the guide frame 46. Then the rotation of the drive housing 63 is stopped. In this way, the pressing rod 62 is pressed against the guide frame 46, thus limiting the pressing rod 62, thereby preventing the limiting frame 44 from sliding relative to the guide frame 46, thereby fixing the position of the first clamping plate 42 and the second clamping plate 43.

[0047] Based on the above description, if the handrail parts are in a vertical position, the clamping direction of the first clamping plate 42 and the second clamping plate 43 needs to be adjusted first. Then, the seventh locking rod 83 is rotated to release the restriction on the sliding seat 34. Afterward, the sliding seat 34 rotates 90° clockwise. Figure 10(Based on the front view perspective), then the seventh locking lever 83 is rotated in the opposite direction, and the sliding seat 34 is limited again. Then, the sixth locking lever 82 is rotated, causing it to release its pressure on the sliding seat 34, thereby releasing the limitation on the clamping seat 41. At this point, the clamping seat 41 is rotated 90° clockwise (towards...). Figure 10 (Based on the top view perspective), at this time, the clamping direction of the first clamping plate 42 and the second clamping plate 43 is vertical. The first clamping plate 42 and the second clamping plate 43 can clamp and position the vertical handrail parts. Then, the sixth locking rod 82 is rotated in the opposite direction to limit the clamping seat 41.

[0048] After the workpiece is assembled, the drive housing 63 is rotated in the opposite direction. The pressing rod 62 is reset under the action of the second elastic element. Then, the fixed column 47 is pulled upward to reset the limit frame 44 and the first clamping plate 42 and the second clamping plate 43.

[0049] Example 4

[0050] Based on Example 3, such as Figures 8-10 and Figure 12 As shown, it also includes symmetrically distributed fine-tuning mechanisms, each disposed on the clamping seat 41, for adjusting the position of adjacent second clamping plates 43. The fine-tuning mechanism includes a third drive rod 51, which is composed of a threaded rod and a circular plate. The third drive rod 51 is rotatably connected to the adjacent clamping seat 41 and passes through the adjacent second clamping plate 43. The third drive rod 51 is threadedly connected to a pressing block 52, which is used to push the adjacent second clamping plate 43. In this embodiment, the telescopic connecting rod 45 has a tension spring inside, which keeps the telescopic connecting rod 45 in a retracted state.

[0051] How the above content works: Following the working principle of Embodiment 3, after stopping the pressing of the limiting frame 44, the position of the first clamping plate 42 is adjusted. If the distance between the first clamping plate 42 and the second clamping plate 43 is greater than that of the armrest part, the first clamping plate 42 and the second clamping plate 43 cannot fix the armrest part. Therefore, it is necessary to adjust the position of the second clamping plate 43 and reduce the distance between the first clamping plate 42 and the second clamping plate 43. The specific operation is as follows: Rotate the third drive rod 51, which drives the pressing block 52 to move via the thread. The pressing block 52 pushes the adjacent second clamping plate 43, which then moves closer to the first clamping plate 42. The second clamping plate 43 stretches the telescopic connecting rod 45 until the distance between the first clamping plate 42 and the second clamping plate 43 matches the size of the handrail part. Then stop rotating the third drive rod 51.

[0052] After the workpiece is assembled, the third drive rod 51 is rotated in the opposite direction, the pressing block 52 loses its pressing on the second clamping plate 43, the telescopic connecting rod 45 resets and drives the second clamping plate 43 to reset.

[0053] like Figure 1 , Figure 4 and Figure 7 As shown, a first interceptor 71 and a second interceptor 72 are rotatably connected to the second plate 6. Both the first interceptor 71 and the second interceptor 72 are L-shaped rods, and the ends of the first interceptor 71 and the second interceptor 72 are provided with protrusions, which are used to block the corresponding support rod 32 and mounting rod 9, respectively. The first interceptor 71 limits the adjacent support rod 32, and the second interceptor 72 limits the adjacent mounting rod 9. In this embodiment, the second plate 6 is composed of a cover plate and a straight rod.

[0054] The working principle of the above content is as follows: After the processed parts are assembled, the cover plates on the right front side and left rear side second plates 6 are removed. Taking the components at the front mounting sleeve 33 and the two support rods 32, as well as the left side fixing shell 10 and the two mounting rods 9 as examples, the fourth locking rod 35 is rotated to release the limit of the right front side second seat 31. Then, the second seat 31 is slid upward so that it loses contact with the corresponding second plate 6. The second seat 31 continues to move upward, and the second seat 31 drives the adjacent support rods 32 to move, so that the front mounting sleeve 33 and the two support rods 32 rotate counterclockwise around the left front side second seat 31 (taking... Figure 1 (Based on the front view), until the front mounting sleeve 33 and the two support rods 32, as well as the rear mounting sleeve 33 and the two support rods 32, are all rotated to a vertical position, then rotate the first interceptor frame 71 counterclockwise (to...). Figure 1 (Based on the top view), then the front mounting sleeve 33 and the two support rods 32 are released, and the first interceptor 71 intercepts the adjacent support rod 32 on the front side, keeping it in a vertical state.

[0055] After limiting the support rod 32, rotate the first locking rod 13 to release the limitation of the first seat 8 on the left rear side and move the first seat 8 upward. The first seat 8 drives the corresponding fixed shell 10 and the two mounting rods 9 to move synchronously, so that the fixed shell 10 and the two mounting rods 9 rotate until the fixed shell 10 and the two mounting rods 9 rotate to the vertical position. Then rotate the second interceptor 72 clockwise. The second interceptor 72 limits the adjacent mounting rods 9, so that the fixed shell 10 and the two mounting rods 9 are always in the vertical position. At this time, the assembled workpiece can be taken out. Then rotate the first interceptor 71 and the second interceptor 72 in the opposite direction to restore the front mounting sleeve 33 and the two support rods 32, as well as the fixed shell 10 and the two mounting rods 9 on the left side, to the horizontal position. Then reset the cover plate of the second patch 6 and continue to assemble the next workpiece.

[0056] Example 5

[0057] An assembly auxiliary method for producing sofa iron frames, based on Example 4, such as... Figures 1-12 As shown, the specific operating steps of an assembly auxiliary device for sofa frame production are as follows: Step 1: According to the size of the workpiece, rotate the first drive rod 3 and the second drive rod 7 in sequence to adjust the distance between the two first plates 2, the two sliding shells 4 and the distance between the symmetrically distributed second plates 6; Step 2: By controlling the first locking rod 13 to release the limit on the first seat 8, the height of the clamping module 12 is adjusted. By controlling all the second locking rods 14 and all the third locking rods 15 to release the limit on the fixed shell 10 and the mounting shell 11, the position of the clamping module 12 is adjusted. Step 3: According to the shape of the workpiece, rotate the rotating rod 21 in sequence to release the locking block 22 from limiting the adjacent second plate 6, and adjust the tilt of the second plate 6; Step 4: According to the size of the workpiece, rotate the fourth locking rod 35 in sequence to release the limit on the adjacent second seat 31, adjust the height and inclination of the mounting sleeve 33, thereby changing the vertical position of the first clamping plate 42 and the second clamping plate 43. Step 5: By controlling the fifth locking rod 81 and the seventh locking rod 83, the limiting on the mounting sleeve 33 and the sliding seat 34 is released, thereby readjusting the horizontal position of the first clamping plate 42 and the second clamping plate 43. Step 6: By controlling the sixth locking lever 82, release the limit on the clamping seat 41, adjust the angle of the clamping seat 41, and thus adjust the clamping direction of the first clamping plate 42 and the second clamping plate 43; Step 7: Press the fixed column 47, the limiting frame 44 begins to deflect and the first clamping plate 42 and the second clamping plate 43 move towards each other. Adjust the distance between the first clamping plate 42 and the second clamping plate 43 in this way, rotate the drive housing 63 so that the extrusion rod 62 contacts and extrudes the guide frame 46, thereby limiting the limiting frame 44.

[0058] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An assembly auxiliary device for producing sofa iron frames, characterized in that, The system includes a base (1) slidably connected to two first plates (2), a first drive rod (3) rotatably connected to the base (1) for synchronously moving the two first plates (2), two sliding shells (4) slidably connected to the base (1), symmetrically distributed connecting parts (5) slidably connected to the sliding shells (4), the connecting parts (5) being slidably connected to the corresponding first plates (2), the connecting parts (5) being provided with second plates (6), and the base (1) being rotatably connected to a first drive rod (3) for synchronously moving the two sliding shells (4). The second drive rod (7) is slidably connected to the opposite sides of the second plates (6) symmetrically distributed on the same sliding shell (4), and the first seat (8) is provided with a mounting rod (9). The mounting rods (9) symmetrically distributed on the same sliding shell (4) are slidably connected to a fixed shell (10). The fixed shell (10) is provided with a mounting shell (11). The mounting shell (11) is equipped with a clamping module (12). The first seat (8) is threaded with a first locking rod (13) for pressing the adjacent second plates (6).

2. The assembly auxiliary device for sofa frame production according to claim 1, characterized in that, The fixed housing (10) is threaded with a second locking rod (14) for pressing the adjacent mounting rod (9), and the mounting housing (11) is threaded with a third locking rod (15) for pressing the adjacent fixed housing (10). The first seat (8) is hinged to the adjacent mounting rod (9), and the fixed housing (10) is slidably connected to the adjacent mounting housing (11).

3. The assembly auxiliary device for producing sofa iron frames according to claim 2, characterized in that, The connector (5) is rotatably connected to a rotating rod (21), the rotating rod (21) is slidably connected to the adjacent first plate (2), the rotating rod (21) is threadedly connected to a locking block (22), the locking block (22) is slidably connected to the adjacent connector (5), the locking block (22) is used to press the adjacent second plate (6), the second plate (6) is rotatably connected to the adjacent connector (5).

4. The assembly auxiliary device for sofa frame production according to claim 3, characterized in that, It also includes symmetrically distributed side fixing mechanisms, which are respectively disposed between two second plates (6) close to the same first plate (2) for clamping the side of the workpiece. The side fixing mechanism includes symmetrically distributed second seats (31), which are slidably connected to the corresponding second plates (6). The second seats (31) are hinged to support rods (32). The symmetrically distributed support rods (32) rotate together and are slidably connected to mounting sleeves (33). The mounting sleeves (33) are slidably connected to sliding seats (34). The sliding seats (34) are provided with clamping mechanisms for clamping the side of the workpiece.

5. The assembly auxiliary device for producing sofa iron frames according to claim 4, characterized in that, The clamping mechanism includes a clamping seat (41), which is rotatably connected to an adjacent sliding seat (34). The clamping seat (41) is slidably connected to a first clamping plate (42) and a second clamping plate (43). The clamping seat (41) is rotatably connected to a limiting frame (44), and a first elastic element is provided between the two. The limiting frame (44) is used to guide the first clamping plate (42). The second clamping plate (43) is hinged to a telescopic connecting rod (45), which is rotatably connected to the limiting frame (44). The clamping seat (41) is fixedly connected to a guide frame (46), which is used to guide the limiting frame (44). The limiting frame (44) is fixedly connected to a fixing column (47).

6. The assembly auxiliary device for producing sofa iron frames according to claim 5, characterized in that, The second seat (31) is threaded with a fourth locking rod (35) for pressing the adjacent second plate (6), the mounting sleeve (33) is threaded with two fifth locking rods (81) for pressing the adjacent support rod (32), the clamping seat (41) is threaded with a sixth locking rod (82) for pressing the adjacent sliding seat (34), and the sliding seat (34) is threaded with a seventh locking rod (83) for pressing the adjacent mounting sleeve (33).

7. The assembly auxiliary device for sofa frame production according to claim 6, characterized in that, It also includes symmetrically distributed fine-tuning mechanisms, which are respectively disposed on the clamping seats (41) for adjusting the position of the adjacent second clamping plates (43). The fine-tuning mechanism includes a third drive rod (51), which is rotatably connected to the adjacent clamping seats (41). The third drive rod (51) passes through the adjacent second clamping plates (43). The third drive rod (51) is threadedly connected to a pressing block (52), which is used to push the adjacent second clamping plates (43).

8. The assembly auxiliary device for producing sofa iron frames according to claim 7, characterized in that, The fixed column (47) is fixedly connected to symmetrically distributed fixed sleeves (61), the fixed sleeves (61) are slidably connected to extrusion rods (62), the fixed sleeves (61) and the adjacent extrusion rods (62) are fixedly connected to a second elastic element, the fixed column (47) is threadedly connected to a drive housing (63), the drive housing (63) is used to push the symmetrically distributed extrusion rods (62), the extrusion rods (62) are used to extrude the adjacent guide frame (46).

9. The assembly auxiliary device for producing sofa iron frames according to claim 8, characterized in that, The second plate (6) is rotatably connected to a first interceptor (71) and a second interceptor (72). The first interceptor (71) limits the adjacent support rod (32), and the second interceptor (72) limits the adjacent mounting rod (9).

10. An assembly auxiliary method for producing sofa iron frames, characterized in that, The specific operating steps of the assembly auxiliary device for producing sofa iron frames according to claim 9 are as follows: Step 1: According to the size of the workpiece, rotate the first drive rod (3) and the second drive rod (7) in sequence to adjust the distance between the two first plates (2), the two sliding shells (4) and the distance between the symmetrically distributed second plates (6); Step 2: By controlling the first locking rod (13) to release the limit on the first seat (8), the height of the clamping module (12) is adjusted. By controlling all the second locking rods (14) and all the third locking rods (15) to release the limit on the fixed shell (10) and the mounting shell (11), the position of the clamping module (12) is adjusted. Step 3: According to the shape of the workpiece, rotate the rotating rod (21) in sequence to release the locking block (22) from the limit of the adjacent second plate (6) and adjust the tilt of the second plate (6); Step 4: According to the size of the workpiece, rotate the fourth locking rod (35) in sequence to release the limit on the adjacent second seat (31), adjust the height and inclination of the mounting sleeve (33), thereby changing the vertical position of the first clamping plate (42) and the second clamping plate (43); Step 5: By controlling the fifth locking lever (81) and the seventh locking lever (83), the limiting on the mounting sleeve (33) and the sliding seat (34) is released, thereby readjusting the horizontal position of the first clamping plate (42) and the second clamping plate (43); Step 6: By controlling the sixth locking lever (82), release the limit on the clamping seat (41), adjust the angle of the clamping seat (41), and thus adjust the clamping direction of the first clamping plate (42) and the second clamping plate (43); Step 7: Press the fixed column (47), the limiting frame (44) begins to deflect and the first clamping plate (42) and the second clamping plate (43) move towards each other. Adjust the distance between the first clamping plate (42) and the second clamping plate (43) in this way, rotate the drive housing (63) so that the extrusion rod (62) contacts and extrudes the guide frame (46), thereby limiting the limiting frame (44).

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