Iron stand positioning structure of screw mechanism and positioning equipment of iron stand positioning structure

Abstract

The utility model discloses an iron stand locating structure of screw mechanism and locating equipment thereof, the iron stand locating structure comprises a first locating assembly and a second locating assembly, the first locating assembly comprises a first driving piece and a first locating pin, the first driving piece is in transmission connection with the first locating pin, and the second locating pin is in transmission connection with the second driving piece. The first positioning assembly comprises a first driving part and a first positioning pin, the first driving part drives the first positioning pin to move in the first direction, the second positioning assembly comprises a second driving part and a second positioning pin, the second driving part is in transmission connection with the second positioning pin, the second driving part drives the second positioning pin to move in the first direction, and the diameter of the first positioning pin is larger than that of the second positioning pin. The first positioning pin and the second positioning pin are arranged in a staggered mode, the positioning precision of the support or the screw mechanism can be remarkably improved through the dual positioning effect of the first positioning pin and the second positioning pin, and due to precise positioning and a stable structure, the reworking and repairing time caused by inaccurate installation or structural damage is shortened; and the production cost and the material waste are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sofa iron frame production equipment, in particular to an iron frame positioning structure of a screw mechanism and a positioning device thereof. Background Art

[0002] With the continuous improvement of the quality of modern home life, consumers have put forward higher requirements for the comfort, functionality and aesthetics of furniture. As one of the indispensable furniture in family life, the design and manufacturing technology of sofas are also constantly evolving. Especially in the field of sofa iron frame production technology, how to improve positioning accuracy, enhance structural stability, adapt to diversified production needs and simplify the installation and disassembly process has become a technical problem that needs to be solved urgently.

[0003] In the traditional sofa iron frame production process, a single positioning method is often used. This method is prone to inaccurate positioning due to human operation errors or material deformation. In addition, if only one positioning pin is used for positioning, the positioning pin will be inserted into the positioning hole normally. However, it is still impossible to prevent the sofa iron frame from rotating around the positioning pin. As a result, the screws of the iron frame cannot be accurately positioned, which in turn makes it impossible to fully automate the installation of the screws of the iron frame. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art described above, the utility model provides an iron frame positioning structure of a screw mechanism and a positioning device thereof, which can solve the problem that the automatic installation of screws of the sofa iron frame cannot be achieved by using a single positioning pin.

[0005] The technical solution adopted by the utility model to solve the problem is:

[0006] An iron frame positioning structure of a screw mechanism, comprising:

[0007] A first positioning assembly, the first positioning assembly comprising a first driving member and a first positioning pin, the first driving member being in driving connection with the first positioning pin so that the first driving member drives the first positioning pin to move along a first direction;

[0008] a second positioning assembly, the second positioning assembly comprising a second driving member and a second positioning pin, the second driving member being in driving connection with the second positioning pin so that the second driving member drives the second positioning pin to move along the first direction;

[0009] Wherein, the diameter of the first positioning pin is greater than the diameter of the second positioning pin, and the first positioning pin and the second positioning pin are staggered.

[0010] By adopting the above scheme, the positioning accuracy of the bracket or screw mechanism can be significantly improved through the dual positioning effect of the first positioning pin and the second positioning pin, and the problem of the iron frame rotating due to the force generated by the installation screw during the screw installation process after the single positioning pin is positioned can be prevented. The precise positioning and stable structure reduce the rework and repair time caused by inaccurate installation or structural damage, and reduce production costs and material waste. At the same time, the risk of production accidents caused by human operational errors is reduced. In addition, the staggered setting of the first positioning pin and the second positioning pin not only improves the positioning accuracy, but also enhances the stability of the structure. This design disperses the force points, prevents deformation or damage caused by concentrated force, and improves the bearing capacity and durability of the overall structure.

[0011] Furthermore, it also includes a push rod assembly, which includes a third driving member and a push rod, the third driving member and the push rod are arranged close to the first positioning pin, and the third driving member is transmission-connected to the push rod so that the third driving member pushes the push rod to move toward the second positioning pin.

[0012] By adopting the above solution, the addition of the push rod assembly enables the iron frame, which may not be accurately installed due to misalignment, to be automatically corrected to the correct position. Driven by the third drive member, the push rod can accurately push the iron frame so that it is aligned with the axis of the first locating pin and the second locating pin, ensuring that the locating pin can be smoothly inserted into the preset locating hole. This process does not require manual intervention, and realizes the automatic correction of the iron frame installation, thereby improving the success rate and efficiency of the screw installation. In addition, the automatic correction function of the push rod assembly makes the entire production process smoother. There is no need to manually check and adjust the position of the iron frame, which reduces the pause and waiting time in the production process and improves the overall operation efficiency of the production line.

[0013] Further, the third driving member and the push rod are connected through an adapter assembly, the adapter assembly includes a first support and a second support, the push rod is an L-shaped structure consisting of a first straight line segment and a second straight line segment, wherein one end of the first straight line segment is rotatably connected to the first support, and the other end is rotatably connected to the second support, the second straight line segment is located at the end where the first straight line segment is rotatably connected to the second support, and the second straight line segment protrudes from the second support, and the third driving member is connected to the first support so that the third driving member drives the first support to move along the first direction.

[0014] By adopting the above solution, the push rod is rotatably connected to the first support and the second support, thus forming a connecting arm structure. And the third driving member drives the first support to move in the first direction, thereby forming a lever with the second support as the fulcrum. The first support and the second support are respectively connected to the opposite ends of the first straight segment, thus forming a labor-saving lever, and further improving the transmission efficiency.

[0015] Furthermore, the first support is provided with a first assembly groove, and the end of the first straight segment rotatably connected to the first support is assembled in the first assembly groove. The parts of the first support and the first straight segment located in the first assembly groove are rotatably connected by a rotating pin.

[0016] By adopting the above solution, the design of the first assembly groove provides an accurate assembly position for the first straight segment of the L-shaped push rod, ensuring the stability of the push rod during rotation. Through the fixing effect of the rotating pin, the connection between the push rod and the support is more firm, reducing the risk of failure caused by loosening or misalignment.

[0017] Furthermore, the second support is provided with a second assembly groove, and the end of the first straight segment rotatably connected to the second support is assembled in the second assembly groove. The parts of the second support and the second straight segment located in the second assembly groove are rotatably connected by a rotating pin.

[0018] By adopting the above solution, the design of the second assembly groove provides an accurate assembly position for the first straight segment of the L-shaped push rod, ensuring the stability of the push rod during rotation. Through the fixing effect of the rotating pin, the connection between the push rod and the support is more firm, reducing the risk of failure caused by loosening or misalignment.

[0019] Furthermore, it further includes a push rod assembly, and the push rod assembly is a lever cylinder.

[0020] By adopting the above solution, the lever cylinder utilizes the lever principle to generate a large output force with a small input force. In the positioning of the screw mechanism support, the lever cylinder can easily push the misaligned iron frame to the correct position, enabling the first positioning pin and the second positioning pin to be smoothly inserted into the preset positioning holes. This design not only reduces the labor intensity of the operator but also improves the installation efficiency.

[0021] Furthermore, a baffle is provided on the side of the second positioning component away from the push rod.

[0022] By adopting the above solution, the setting of the baffle can serve as an auxiliary reference point for the positioning of the iron frame, ensuring that when the iron frame is pushed to the positioning position by the push rod assembly, its edge or specific part can closely adhere to the baffle, thereby achieving more accurate positioning, and further reducing installation problems caused by the position deviation of the iron frame and improving the overall production accuracy.

[0023] Further, a nut positioning groove is provided on the end surface of the first positioning pin away from the first driving member.

[0024] By adopting the above solution, the nut positioning groove can tightly fix the nut, that is, the outer wall of the first positioning pin positions the screw hole, and the nut positioning groove can position the nut to be installed in the screw hole, so that the equipment for conveniently screwing the screw can directly screw the screw.

[0025] Further, a structural plate is further included. The structural plate is provided with a guiding hole for the first positioning pin to pass through, and the outer wall of the first positioning pin fits with the hole wall of the guiding hole.

[0026] By adopting the above solution, the setting of the guiding hole provides an accurate path and direction for the first positioning pin. And on the basis of the structure of the first positioning pin provided with the nut positioning groove, the first positioning pin itself will be subject to the reaction force brought by fixing the nut, and the guiding hole can ensure that the first positioning pin can also maintain a stable posture during the process of positioning the nut.

[0027] The present utility model further provides a sofa iron frame assembly positioning device, including an assembly positioning device body. At least one set of iron frame positioning structures of the screw mechanism as described above are symmetrically arranged on two opposite sides of the assembly positioning device body.

[0028] By adopting the above solution, by symmetrically arranging at least one set of screw mechanism iron frame positioning structures on both sides of the assembly positioning device body, multiple parts of the sofa iron frame can be positioned and fixed simultaneously. This parallel processing method significantly improves the assembly efficiency and shortens the production cycle.

[0029] In summary, an iron frame positioning structure of a screw mechanism and its positioning device provided by the present utility model have the following technical effects:

[0030] 1. Through the dual positioning effects of the first positioning pin and the second positioning pin, the positioning accuracy of the bracket or the screw mechanism can be significantly improved, preventing the problem of the iron frame rotating due to the force generated during the screw installation after being positioned by a single positioning pin. The accurate positioning and stable structure reduce the rework and repair time caused by inaccurate installation or structural damage, reduce the production cost and material waste. At the same time, the risk of production accidents caused by human operation errors is reduced;

[0031] 2. The staggered setting of the first positioning pin and the second positioning pin not only improves the positioning accuracy but also enhances the structural stability. This design disperses the stress points, prevents deformation or damage caused by concentrated stress, and improves the load-bearing capacity and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1This is a three-dimensional structural schematic diagram of the present utility model.

[0033] Among them, the meanings of the reference numerals are as follows: 11, the first driving member; 12, the first positioning pin; 121, the nut positioning groove; 21, the second driving member; 23, the second positioning pin; 31, the third driving member; 32, the push rod; 321, the first straight segment; 322, the second straight segment; 4, the first support; 41, the first assembly groove; 5, the second support; 51, the second assembly groove; 6, the baffle; 7, the rotating pin; 8, the structural plate; 81, the guiding hole. Detailed implementation manners

[0034] For better understanding and implementation, the following will clearly and completely describe and discuss the technical solutions in the embodiments of the present utility model with reference to the drawings of the present utility model. Obviously, what is described here is only a part of the examples of the present utility model, not all of the examples. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0035] For the convenience of understanding the embodiments of the present utility model, the following will further explain with specific examples with reference to the drawings, and each embodiment does not constitute a limitation on the embodiments of the present utility model.

[0036] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 therefore should not be construed as a limitation on the present utility model.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0038] Refer to Figure 1, the utility model discloses a positioning structure of an iron frame for a screw mechanism, which includes a first positioning component and a second positioning component. The first positioning component includes a first driving member 11 and a first positioning pin 12. The first driving member 11 is in transmission connection with the first positioning pin 12, so that the first driving member 11 drives the first positioning pin 12 to move in a first direction. The second positioning component includes a second driving member 21 and a second positioning pin 23. The second driving member 21 is in transmission connection with the second positioning pin 23, so that the second driving member 21 drives the second positioning pin 23 to move in the first direction. Wherein, the diameter of the first positioning pin 12 is larger than that of the second positioning pin 23, and the first positioning pin 12 and the second positioning pin 23 are arranged in a staggered manner.

[0039] Specifically, the first positioning component includes a first driving member 11 and a first positioning pin 12. The first driving member 11 drives the first positioning pin 12 to move in a first direction, and this first direction is the axial direction of the first positioning pin 12. The second positioning component includes a second driving member 21 and a second positioning pin 23. The second driving member 21 drives the second positioning pin 23 to move in a first direction, and this first direction is the axial direction of the second positioning pin 23. The axial directions of the first positioning pin 12 and the second positioning pin 23 are both the first direction, that is, the first positioning pin 12 and the second positioning pin 23 are arranged in parallel, and both the first positioning pin 12 and the second positioning pin 23 move in a parallel direction. The diameter of the first positioning pin 12 is larger than that of the second positioning pin 23. Mainly because the iron frame generally has holes dedicated to installing screws and holes dedicated to positioning. The larger diameter of the first positioning pin 12 corresponds to the hole dedicated to installing screws. The first positioning pin 12 extending into the hole dedicated to installing screws provides an accurate position for the subsequent installation of screws; the diameter of the second positioning pin 23 is smaller, that is, since the hole dedicated to positioning does not need to be set too large, the size of the second positioning pin 23 can be set correspondingly. The first positioning pin 12 and the second positioning pin 23 are arranged in a staggered manner. That is, in order to ensure the strength of the iron frame, no holes with other functions are provided in the area near the holes where the iron frame needs to install screws. Therefore, the first positioning pin 12 and the second positioning pin 23 need to be arranged in a staggered manner to correspond to the production of this type of iron frame. The first driving member 11 and the second driving member 21 can be cylinders, hydraulic cylinders or other types of telescopic rod structures, as long as they can correspondingly drive the first positioning pin 12 and the second positioning pin 23 to move in the first direction.

[0040] The working principle of the above structure:

[0041] The iron frame moves to a position where the reserved positioning holes correspond to the first positioning pin 12 and the second positioning pin 23, the first driving member 11 drives the first positioning pin 12 to be inserted into one of the reserved positioning holes of the iron frame, and the second driving member 21 drives the second positioning pin 23 to be inserted into another reserved positioning hole of the iron frame, thereby completing the positioning work, and then pushing out the first positioning pin 12 in correspondence with the installation of the screw to complete the installation of the screw, and then the first driving member 11 drives the first positioning pin 12 to retract and exit the movement space of the iron frame, and the second driving member 21 drives the second positioning pin 23 to retract and exit the movement space of the iron frame, thereby completing the process of installing a single iron frame screw.

[0042] In some embodiments, in order to improve the positioning accuracy of the iron frame positioning structure, the iron frame positioning structure also includes a push rod assembly, which includes a third driving member 31 and a push rod 32, and the third driving member 31 and the push rod 32 are arranged near the first positioning pin 12, and the third driving member 31 is connected to the push rod 32 in a transmission manner so that the third driving member 31 pushes the push rod 32 to move in the direction of the second positioning pin 23. That is, under the drive of the third driving member 31, the push rod 32 can accurately push the iron frame so that it is aligned with the axis of the first positioning pin 12 and the second positioning pin 23, ensuring that the positioning pin can be smoothly inserted into the preset positioning hole. This process does not require manual intervention, and realizes the automatic correction of the iron frame installation, thereby improving the success rate and efficiency of the screw installation. In addition, the automatic correction function of the push rod assembly makes the entire production process smoother. There is no need to manually check and adjust the position of the iron frame, which reduces the pause and waiting time in the production process and improves the overall operation efficiency of the production line.

[0043] Further, the third driving member 31 and the push rod 32 are connected through an adapter assembly, which includes a first support 4 and a second support 5. The push rod 32 is an L-shaped structure composed of a first straight segment 321 and a second straight segment 322, wherein one end of the first straight segment 321 is rotatably connected to the first support 4, and the other end is rotatably connected to the second support 5. The second straight segment 322 is located at the end of the first straight segment 321 and the second support 5, and the second straight segment 322 is protruding from the second support 5. The third driving member 31 is connected to the first support 4 so that the third driving member 31 drives the first support 4 to move along the first direction. The push rod 32 is rotatably connected to the first support 4 and the second support 5 to form a connecting arm structure, and the third driving member 31 drives the first support 4 to move along the first direction to form a lever with the second support 5 as a fulcrum. The first support 4 and the second support 5 are respectively connected to the opposite ends of the first straight segment 321, thereby forming a labor-saving lever, thereby improving the transmission efficiency.

[0044] The installation method of the first support 4 and the first straight segment 321 is specifically as follows: The first support 4 is provided with a first assembly groove 41. The end of the first straight segment 321 that is rotatably connected to the first support 4 is assembled in the first assembly groove 41. The parts of the first support 4 and the first straight segment 321 located in the first assembly groove 41 are rotatably connected by a rotating pin 7.

[0045] The installation method of the second support 5 and the first straight segment 321 is specifically as follows: The second support 5 is provided with a second assembly groove 51. The end of the first straight segment 321 that is rotatably connected to the second support 5 is assembled in the second assembly groove 51. The parts of the second support 5 and the second straight segment 322 located in the second assembly groove 51 are rotatably connected by a rotating pin 7.

[0046] In some other embodiments, the push rod assembly is a lever cylinder. The design of using a lever cylinder is more simple and convenient for the design of the entire positioning structure.

[0047] In some embodiments, in order to further improve the positioning effect of the iron frame positioning structure on the iron frame, a baffle 6 is provided on the side of the second positioning assembly away from the push rod 32.

[0048] Specifically, the baffle 6 can serve as an auxiliary reference point for iron frame positioning. When the iron frame is pushed to the positioning position by the push rod assembly, its edge or specific part can closely adhere to the baffle 6, so as to achieve more accurate positioning, and further reduce installation problems caused by the position deviation of the iron frame, and improve the overall production accuracy.

[0049] In some embodiments, a nut positioning groove 121 is provided on the end face of the first positioning pin 12 away from the first driving member 11. In order to facilitate the installation of the iron frame screw, the nut positioning groove 121 can tightly fix the nut, that is, the outer wall positioning screw hole of the first positioning pin 12 is realized. The nut positioning groove 121 can position the nut to be installed in the screw hole, so that the equipment for screwing the screw can directly tighten the screw. The specific setting structure of the nut positioning groove 121 can correspond to the nut, such as a polygonal groove, etc., which is not limited here.

[0050] In some embodiments, the iron frame positioning structure further includes a structural plate 8. The structural plate 8 is provided with a guiding hole 81 for the first positioning pin 12 to pass through. The outer wall of the first positioning pin 12 fits with the hole wall of the guiding hole 81. Specifically, the setting of the guiding hole 81 provides an accurate path and direction for the first positioning pin 12. And on the basis of the structure of the first positioning pin 12 provided with the nut positioning groove 121, the first positioning pin 12 itself will receive the reaction force brought by the fixed nut. The guiding hole 81 can ensure that the first positioning pin 12 can also maintain a stable posture during the process of positioning the nut.

[0051] The present utility model further provides a sofa iron frame assembly positioning device, including an assembly positioning device body, and at least one set of iron frame positioning structures of the screw mechanism as described above are symmetrically arranged on two opposite sides of the assembly positioning device body. Since most of the screws of the sofa iron frame are symmetrically installed, the iron frame positioning structures of the screw mechanism symmetrically arranged on two opposite sides of the assembly positioning device body can correspond to the production and installation of most sofa iron frames on the market. Whether to specifically adopt one set or multiple sets of iron frame positioning structures can be freely selected according to the style of the sofa iron frame as needed, and no limitation is made here.

[0052] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, and also include technical solutions composed of any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. An iron frame positioning structure of a screw mechanism, characterized in that, include: A first positioning assembly, the first positioning assembly comprising a first driving member (11) and a first positioning pin (12), the first driving member (11) being transmission-connected to the first positioning pin (12), so that the first driving member (11) drives the first positioning pin (12) to move along a first direction; A second positioning assembly, the second positioning assembly comprising a second driving member (21) and a second positioning pin (23), the second driving member (21) being in driving connection with the second positioning pin (23), so that the second driving member (21) drives the second positioning pin (23) to move along the first direction; Wherein, the diameter of the first positioning pin (12) is greater than the diameter of the second positioning pin (23), and the first positioning pin (12) and the second positioning pin (23) are staggered.

2. The iron frame positioning structure of a screw mechanism according to claim 1, characterized in that, The invention also includes a push rod assembly, which includes a third driving member (31) and a push rod (32). The third driving member (31) and the push rod (32) are arranged close to the first positioning pin (12). The third driving member (31) is transmission-connected with the push rod (32) so that the third driving member (31) pushes the push rod (32) to move toward the direction of the second positioning pin (23).

3. The iron frame positioning structure of a screw mechanism according to claim 2, characterized in that The third driving member (31) and the push rod (32) are connected via an adapter assembly, the adapter assembly comprising a first support (4) and a second support (5), the push rod (32) being an L-shaped structure consisting of a first straight segment (321) and a second straight segment (322), wherein one end of the first straight segment (321) is rotationally connected to the first support (4), and the other end is rotationally connected to the second support (5), the second straight segment (322) is located at the end portion where the first straight segment (321) is rotationally connected to the second support (5), and the second straight segment (322) is protruding from the second support (5), the third driving member (31) is connected to the first support (4), so that the third driving member (31) drives the first support (4) to move along the first direction.

4. The iron frame positioning structure of a screw mechanism according to claim 3, characterized in that, The first support (4) is provided with a first assembly groove (41), the end of the first straight section (321) rotatably connected to the first support (4) is assembled in the first assembly groove (41), and the first support (4) and the part of the first straight section (321) located in the first assembly groove (41) are rotatably connected via a rotating pin (7).

5. The locating structure for the iron frame of a screw mechanism according to claim 3, characterized in that, The second support (5) is provided with a second assembly groove (51), the end of the first straight section (321) rotatably connected to the second support (5) is assembled in the second assembly groove (51), and the second support (5) and the part of the second straight section (322) located in the second assembly groove (51) are rotatably connected via a rotating pin (7).

6. The iron frame positioning structure of a screw mechanism according to claim 1, characterized in that, It also includes a push rod assembly, which is a lever cylinder.

7. A positioning structure of an iron frame for a screw mechanism according to any one of claims 2-6, characterized in that, A baffle (6) is provided on the side of the second positioning assembly away from the push rod (32).

8. A positioning structure of an iron frame of a screw mechanism according to any one of claims 1-6, characterized in that, A nut positioning groove (121) is provided on the end surface of the first positioning pin (12) away from the first driving member (11).

9. A positioning structure of an iron frame of a screw mechanism according to any one of claims 1-6, characterized in that, Further included is a structural plate (8), and the structural plate (8) is provided with a guiding hole (81) for the first positioning pin (12) to pass through, and the outer wall of the first positioning pin (12) fits against the hole wall of the guiding hole (81).

10. A positioning device for assembling a sofa iron frame, characterized in that, It includes an assembly positioning device body, and at least one set of iron frame positioning structures of the screw mechanism as described in any one of claims 1-9 are symmetrically arranged on opposite sides of the assembly positioning device body.

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