A desk and chair frame punching device

Abstract

The application discloses a desk and chair frame punching equipment, which comprises a machine table, oppositely arranged first and second supporting mechanisms, correspondingly matched first and second pressing mechanisms, a positioning mechanism and a punching mechanism. The machine table provides stable support, the double supporting mechanisms realize synchronous supporting positioning of double stations, and the double pressing mechanisms form multidimensional fixation. The core lies in that the positioning mechanism cooperates with the punching mechanism to realize integrated linkage of "positioning-clamping-punching", the punching mechanism is matched with the positioning mechanism to complete secondary positioning and clamping and then punching when the punching mechanism moves, the problems of low precision and poor efficiency of traditional equipment are solved, two workpieces can be processed synchronously, batch processing capacity and hole position precision are improved, and the equipment is suitable for processing desk and chair frames of different specifications.

Description

Technical Field

[0001] This invention belongs to the technical field of table and chair frame processing equipment, and particularly relates to a table and chair frame punching equipment. Background Technology

[0002] As the core supporting component of table and chair furniture, the side walls and ends of the table and chair frame require the machining of structural holes such as positioning holes and assembly holes to meet the precision requirements of subsequent assembly and accessory installation. Currently, traditional table and chair frame punching processing mostly adopts a single-station, single-clamping punching mode, which can only perform single-side positioning and single-point clamping on a single table and chair frame workpiece. The workpiece is supported on the machine by a simple lifting structure, lacking a multi-station zone support, multi-dimensional collaborative clamping, and integrated positioning and clamping structure. This makes the workpiece prone to horizontal movement, longitudinal warping, and end offset under the impact of punching. The machining accuracy, coaxiality, and positional accuracy of the holes are difficult to guarantee. Moreover, only a single part of the workpiece can be punched at a time, resulting in poor processing continuity, cumbersome positioning and clamping steps, and the inability to achieve simultaneous positioning, clamping, and punching of two workpieces. Overall, the processing efficiency is low, the finished product qualification rate is insufficient, and it is difficult to meet the needs of efficient and precise punching processing of batch table and chair frames. Summary of the Invention

[0003] The purpose of this invention is to provide a punching device for table and chair frames to solve the problems mentioned in the background art.

[0004] In view of this, the present invention provides a punching device for table and chair frames, comprising: Machine tool; The first support mechanism is set on one side of the machine platform to horizontally support the table and chair frame, and one end of the table and chair frame is also supported by the first support mechanism; The second support mechanism is provided on the other side of the machine platform to horizontally support the table and chair frame. The first support mechanism and the second support mechanism are arranged opposite to each other, and one end of the other table and chair frame is held in place by the second support mechanism. A first pressing mechanism is provided on the machine platform and is used to abut against the other end of the table and chair frame on the first supporting mechanism; The second pressing mechanism is installed on the machine base and is used to press the table and chair frame on the second supporting mechanism from the longitudinal direction. A positioning mechanism is installed on the machine platform for positioning the table and chair frame; A punching mechanism is installed on the machine base and is adapted to the positioning mechanism. The movement of the punching mechanism and the positioning mechanism simultaneously achieve positioning, clamping and punching of the table and chair frame.

[0005] In a further embodiment of the present invention, the first supporting mechanism includes a first supporting block, a stop block, and a base plate. The first supporting block and the stop block are both fixed on the base plate. The base plate is fixed on the machine platform. The stop block is located on the outside of the machine platform. The first supporting block is adapted to support the table and chair frame, and one end of the table and chair frame abuts against the stop block.

[0006] In a further embodiment of the present invention, the second supporting mechanism includes a second supporting block and a stop plate, the second supporting block and the stop plate are fixed on a base plate, the base plate is fixed on a machine platform, the second supporting block supports the table and chair frame, and one end of the table and chair frame abuts against the stop plate.

[0007] In a further embodiment of the present invention, the first pressing mechanism includes a first cylinder, which is mounted on the machine base. The output end of the first cylinder is provided with a first pressure plate. The first cylinder pushes the first pressure plate to press down on the other end of the table and chair frame, and cooperates with the abutment block to fix the table and chair frame.

[0008] In a further embodiment of the present invention, the second pressing mechanism includes a second cylinder, which is fixed on the machine base. The output end of the second cylinder presses the table and chair frame and the mating plate vertically through the second pressure plate to press and fix the table and chair frame.

[0009] In a further embodiment of the present invention, the positioning mechanism includes a third cylinder and a positioning block. The third cylinder is disposed on the machine platform and located inside the table and chair frame. The positioning block is fixed to the movable end of the third cylinder. An L-shaped positioning platform is formed on the outer side of the positioning block. The table and chair frame is adapted to support the positioning platform.

[0010] In a further embodiment of the present invention, the punching mechanism includes a fourth cylinder, which is fixed on the machine base and located outside the table and chair frame. A first connecting block is fixed to the output end of the fourth cylinder. A punch is fixed to the upper part of the first connecting block through a second connecting block. A positioning rod is connected to a third connecting block and passes through the first connecting block. A fourth connecting block is also provided on the machine base. The positioning rod is movably connected to the fourth connecting block. The fourth cylinder drives the third connecting block and the fourth connecting block to merge and clamp and fix the table and chair frame. The punch passes through the third connecting block and is used to punch holes in the table and chair frame.

[0011] The beneficial effects of this invention are: Firstly, by setting the first and second support mechanisms opposite to each other on the machine, the two table and chair frame workpieces are horizontally supported in sections. At the same time, the first and second clamping mechanisms respectively form multi-dimensional fixation of the corresponding workpieces by end clamping and longitudinal clamping. Combined with the dedicated positioning mechanism, the workpieces are accurately positioned, which completely solves the problems of unstable workpiece support, loose clamping, and easy movement and warping of traditional equipment, greatly improves the workpiece clamping stability and ensures the accuracy of punching position.

[0012] Secondly, the structure design of corresponding and coordinated movement of punching mechanism and positioning mechanism is adopted. During the operation of punching mechanism, the positioning and clamping of table and chair frame and punching processing can be realized simultaneously. The three processes of positioning, clamping and punching are integrated into one, eliminating the redundant operation of step positioning and separate clamping, simplifying the processing flow, shortening the clamping and processing time of single workpiece, and significantly improving the overall punching processing efficiency.

[0013] Thirdly, it enables simultaneous support, positioning, clamping, and punching of two workpieces, breaking through the limitations of traditional single-station, single-processing. While ensuring the accuracy of hole processing, it significantly increases the equipment's processing capacity, adapting to the needs of continuous batch production of table and chair frames. At the same time, the positioning, clamping, and punching actions are linked and coordinated, with unified positioning references, effectively ensuring the consistency of hole position and coaxiality of each workpiece, improving the finished product qualification rate and reducing the defect rate.

[0014] Fourth, the overall structure is reasonably laid out, with each functional mechanism performing its own function and cooperating with each other. The workpiece clamping and positioning method is simple and reliable, eliminating the need for repeated manual calibration and adjustment, reducing the difficulty of operation, reducing positioning errors caused by manual intervention, and ensuring strong equipment stability. Under the impact of punching, the workpiece does not shift or deform, thus comprehensively optimizing the accuracy and efficiency of punching table and chair frames. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention when it is idle; Figure 2 yes Figure 1 A top-down view; Figure 3 This is a side view of the invention when it is placed in the table and chair rack; Figure 4 This is a schematic diagram of the structure of the present invention during operation; Figure 5 yes Figure 4 A top-down view. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0018] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0019] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0020] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0021] This embodiment provides a punching device for table and chair frames, including: Machine base 1; Machine base 1 serves as the installation foundation and load-bearing platform for the entire equipment. It is integrally formed from high-strength steel, providing a solid and flat support for the installation and operation of various functional mechanisms. This effectively avoids processing errors caused by vibration of machine base 1 during equipment operation, ensuring the accuracy of punching the table and chair frame 3 from the foundation level. At the same time, the reasonable size design of machine base 1 can adapt to the processing needs of different specifications of table and chair frames 3, improving the versatility of the equipment.

[0022] The first support mechanism 2 is installed on one side of the machine base 1 to horizontally support the table and chair frame 3. One end of the table and chair frame 3 is also held in place by the first support mechanism 2. The first support mechanism 2 is specifically designed for one of the table and chair frame 3 workpieces to achieve precise horizontal support of the workpiece, ensuring that the workpiece is in a horizontal state during processing and avoiding hole displacement caused by tilting of the support. At the same time, its end abutment structure can initially position one end of the workpiece. With the subsequent action of the first clamping mechanism 5, a two-way clamping of the end of the workpiece is formed, which completely solves the problem of single support without positioning and easy movement of the workpiece in traditional equipment, improves the stability of workpiece clamping, and lays the foundation for subsequent precise punching.

[0023] The second support mechanism 4 is set on the other side of the machine base 1 to horizontally support the table and chair frame 3. The first support mechanism 2 and the second support mechanism 4 are arranged opposite to each other, and one end of the other table and chair frame 3 is held in place by the second support mechanism 4. The second support mechanism 4 and the first support mechanism 2 are arranged opposite to each other to form a dual-station support structure, which can support two table and chair frame 3 workpieces for processing at the same time. This breaks through the limitations of traditional single-station single-processing, greatly improves processing efficiency, and is suitable for batch production needs. It also has an end-abutment function, which can initially position one end of the other workpiece. With the longitudinal clamping of the second clamping mechanism 6, it can achieve stable clamping of the workpiece. It works in conjunction with the first support mechanism 2 to ensure that the two workpieces are in a stable processing state at the same time, ensuring the synchronicity and consistency of the processing of the two workpieces.

[0024] The first clamping mechanism 5 is installed on the machine base 1 and is used to abut against the other end of the table and chair frame 3 on the first supporting mechanism 2. The first clamping mechanism 5 and the end abutment structure of the first supporting mechanism 2 are correspondingly matched to form a bidirectional clamping and fixing of the end of the workpiece on the first supporting mechanism 2. This can effectively limit the movement of the workpiece in the horizontal direction and avoid the workpiece end from shifting due to impact force during punching, thereby ensuring the positional accuracy of the hole. Compared with the traditional manual clamping method, it has a high degree of automation, does not require manual operation, reduces labor intensity, and the clamping force is uniform and controllable. The clamping force can be adjusted according to the material and thickness of different specifications of table and chair frames 3 to avoid workpiece deformation due to excessive clamping force or loosening of the workpiece due to insufficient clamping force, thus taking into account both processing accuracy and workpiece integrity.

[0025] The second clamping mechanism 6 is installed on the machine base 1 and is used to press the table and chair frame 3 on the second support mechanism 4 longitudinally. The second clamping mechanism 6 adopts a longitudinal clamping method, which works in conjunction with the end abutment structure of the second support mechanism 4 to form a three-dimensional fixation of the workpiece on the second support mechanism 4. It restricts the warping and vertical movement of the workpiece from the longitudinal direction, makes up for the shortcomings of the traditional horizontal clamping, and further improves the stability of the workpiece clamping. Its longitudinal clamping design can be adapted to table and chair frame 3 workpieces with different cross-sectional sizes, without the need for frequent adjustment of the mechanism, improving the adaptability of the equipment. At the same time, the clamping action is smooth and will not damage the surface of the workpiece, ensuring the appearance quality of the workpiece after processing. Combined with the dual-station design, it further improves the efficiency and consistency of batch processing.

[0026] Positioning mechanism 7, installed on the machine base 1, is used to position the table and chair frame 3. Positioning mechanism 7 is one of the core mechanisms for achieving precise punching of the table and chair frame 3. Its precise positioning function effectively solves the technical pain points of unclear positioning reference and large hole position deviation in traditional equipment, ensuring that the hole position accuracy and coaxiality of each workpiece meet design requirements, thus improving the finished product qualification rate. Positioning mechanism 7 can precisely limit the workpiece based on the structural characteristics of the table and chair frame 3, clearly defining the reference for the punching position, providing precise guidance for the subsequent punching mechanism 8, and avoiding problems such as hole position offset and defective holes caused by positioning deviation. At the same time, its positioning method is simple and reliable, requiring no repeated manual calibration, reducing operational difficulty, minimizing errors caused by manual intervention, and improving the automation and stability of the processing.

[0027] The punching mechanism 8, mounted on the machine base 1 and correspondingly adapted to the positioning mechanism 7, moves while simultaneously positioning, clamping, and punching the table and chair frame 3 in conjunction with the positioning mechanism 7. As the actuator of the equipment, the punching mechanism 8 precisely corresponds and adapts to the positioning mechanism 7. Its core innovation lies in achieving integrated "positioning-clamping-punching" operations, completely breaking the traditional step-by-step model of positioning, clamping, and punching, significantly simplifying the processing flow, shortening processing time, and improving processing efficiency. During its movement, the punching mechanism 8 does not simply perform punching operations; rather, it cooperates with the positioning mechanism 7 to first achieve secondary precise positioning and stable clamping of the table and chair frame 3 before performing the punching operation. This ensures positioning accuracy and avoids workpiece displacement caused by punching impact, achieving precise punching. Simultaneously, with the dual-station support and clamping mechanism, two workpieces can be punched simultaneously, further increasing batch processing capacity and comprehensively optimizing the accuracy and efficiency of punching the table and chair frame 3.

[0028] The first supporting mechanism 2 includes a first supporting block 20, a stop block 21, and a base plate 22. Both the first supporting block 20 and the stop block 21 are fixed to the base plate 22, which is fixed to the machine base 1. The stop block 21 is located on the outside of the machine base 1. The first supporting block 20 is adapted to support the table and chair frame 3, with one end of the table and chair frame 3 abutting against the stop block 21. The base plate 22 serves as the mounting carrier for the first supporting block 20 and the stop block 21, and is securely connected to the machine base 1 with bolts to ensure the overall stability of the first supporting mechanism 2 and prevent loosening during equipment operation. The first supporting block 20 adopts an arc or groove shape adapted to the shape of the table and chair frame 3. The structure can closely fit the surface of the table and chair frame 3 to achieve stable support for the workpiece, avoiding slippage or uneven force during support. At the same time, its size can be adapted to the specifications of the table and chair frame 3, improving the versatility of the mechanism. The abutment block 21 is located on the outside of the machine base 1, which can accurately abut and position one end of the table and chair frame 3, clarifying the end reference of the workpiece. It works in conjunction with the other end of the first clamping mechanism 5 to form a two-way fixation of the end of the workpiece, effectively restricting the horizontal movement of the workpiece. It provides a precise position reference for subsequent positioning and punching, solving the problem that traditional support mechanisms can only lift but cannot position, and improving clamping accuracy and stability.

[0029] The second supporting mechanism 4 includes a second supporting block 40 and abutment plate 41. The second supporting block 40 and abutment plate 41 are fixed on a base plate 22, which is fixed on the machine base 1. The second supporting block 40 supports the table and chair frame 3, and one end of the table and chair frame 3 abuts against the abutment plate 41. The base plate 22 of the second supporting mechanism 4 has the same structure as the base plate 22 of the first supporting mechanism 2, ensuring the levelness and stability after installation. It is arranged opposite to the first supporting mechanism 2 to form a symmetrical dual-station structure, ensuring the synchronicity of the processing of the two workpieces. 40 also adopts a structure that adapts to the shape of the table and chair frame 3 to achieve stable support for another workpiece. Compared with the abutment block 21, the abutment plate 41 has a larger contact area, which can better fit the end of the table and chair frame 3, improve the stability of the abutment positioning, and avoid the displacement caused by uneven force on the end of the workpiece. Together with the longitudinal pressing of the second pressing mechanism 6, it forms a three-dimensional fixation of the workpiece, ensuring that the workpiece does not warp or move during the punching process. It works in conjunction with the first supporting mechanism 2 to achieve synchronous and stable clamping of the two workpieces, providing a guarantee for synchronous punching and greatly improving processing efficiency.

[0030] The first clamping mechanism 5 includes a first cylinder 50, which is mounted on the machine base 1. A first pressure plate 51 is located at the output end of the first cylinder 50. The operation of the first cylinder 50 pushes the first pressure plate 51 to press down on the other end of the table and chair frame 3, cooperating with the abutment block 21 to fix the table and chair frame 3 in place. The first cylinder 50 serves as a power source, exhibiting a high degree of automation and enabling rapid extension and retraction, driving the first pressure plate 51 to complete the clamping and releasing actions. Compared to traditional manual clamping, this significantly improves clamping efficiency and reduces labor intensity. The first pressure plate 51 is made of a flexible material or has a flexible surface. The device features anti-slip textures, which prevent scratches on the workpiece surface while clamping it, protecting the workpiece's appearance quality. The anti-slip textures also increase friction with the workpiece, improving clamping stability. The first cylinder 50 drives the first pressure plate 51 to press against the other end of the table and chair frame 3, forming a bidirectional clamping action with the abutment block 21 of the first support mechanism 2. This firmly fixes the table and chair frame 3 onto the first support block 20, effectively limiting horizontal movement of the workpiece. This solves the problems of uneven force and insecure clamping in traditional clamping methods, ensuring stable workpiece position during punching and improving hole machining accuracy.

[0031] The second pressing mechanism 6 includes a second cylinder 60, which is fixed on the machine base 1. The output end of the second cylinder 60 presses the table and chair frame 3 longitudinally through the second pressure plate 61 and the abutment plate 41 to press and fix the table and chair frame 3. The second cylinder 60 works in conjunction with the first cylinder 50, using a longitudinal pressing method to compensate for the lack of horizontal pressing of the first pressing mechanism 5, forming a three-dimensional pressing structure. The size of the second pressure plate 61 is adapted to the width of the table and chair frame 3, which can realize the comprehensive longitudinal pressing of the workpiece, ensuring that the upper and lower surfaces of the workpiece are evenly stressed and avoiding local stress on the workpiece. Excessive force can cause deformation. At the same time, the second pressure plate 61 can adjust the clamping stroke according to the thickness of the workpiece to adapt to the processing of table and chair frames 3 of different specifications. The second cylinder 60 drives the second pressure plate 61 to press the table and chair frame 3 longitudinally. With the support plate 41 of the second support mechanism 4 positioning the end of the workpiece, the workpiece is firmly fixed on the second support block 40, which effectively restricts the longitudinal warping and vertical movement of the workpiece. This solves the problem of easy warping and hole displacement caused by traditional horizontal clamping. It further improves the clamping stability and processing accuracy. In conjunction with the first clamping mechanism 5, it realizes the synchronous and stable clamping of two workpieces.

[0032] The positioning mechanism 7 includes a third cylinder 70 and a positioning block 71. The third cylinder 70 is mounted on the machine base 1 and located inside the table and chair frame 3. The positioning block 71 is fixed to the movable end of the third cylinder 70. An L-shaped positioning platform is formed on the outer side of the positioning block 71, and the table and chair frame 3 is adapted to support the positioning platform. The core of the positioning mechanism 7 lies in the design of the L-shaped positioning platform and the driving cooperation of the third cylinder 70. The L-shaped positioning platform can simultaneously achieve horizontal and vertical limiting of the table and chair frame 3, forming a three-dimensional positioning structure. Compared with the traditional single-direction positioning, the positioning accuracy is greatly improved, and the punching position reference of the table and chair frame 3 can be accurately determined, avoiding hole position offset caused by positioning deviation. The cylinder 70 serves as the power source for the positioning block 71, enabling it to extend and retract flexibly, thus achieving rapid positioning and release of the table and chair frame 3. This high degree of automation is suitable for batch processing needs. The positioning block 71 is located inside the table and chair frame 3, corresponding to the outer punching mechanism 8. It can support and position the workpiece from the inside during the punching process. Combined with the outer clamping of the punching mechanism 8, it forms a two-way clamping of the workpiece, further improving its stability. At the same time, the L-shaped positioning table is adapted to the shape of the table and chair frame 3, allowing it to fit tightly against the workpiece surface, ensuring the accuracy and reliability of the positioning. This solves the technical pain points of the traditional positioning mechanism 7, such as unclear positioning reference and unstable positioning, providing a core guarantee for precise punching.

[0033] The punching mechanism 8 includes a fourth cylinder 80, which is fixed on the machine base 1 and located outside the table and chair frame 3. A first connecting block 81 is fixed to the output end of the fourth cylinder 80. A punch 83 is fixed to the upper part of the first connecting block 81 through a second connecting block 82. A positioning rod 85 is connected to a third connecting block 84, which passes through the first connecting block 81. A fourth connecting block 86 is also provided on the machine base 1. The positioning rod 85 is movably connected to the fourth connecting block 86. The fourth cylinder 80 drives the third connecting block 84 and the fourth connecting block 86 to merge and clamp the table and chair frame 3. The punch 83 passes through the third connecting block 84 and is used to punch holes in the table and chair frame 3. The coordinated operation of the punching mechanism 8 and the positioning mechanism 7 is the core of this invention. It completely breaks the traditional step-by-step mode of positioning, clamping and punching, and realizes the integrated linkage operation of the three, which greatly improves processing efficiency and accuracy. Specifically, the fourth cylinder 80 serves as the power source for the punching mechanism 8, and its operation is divided into two stages: In the first stage, the fourth cylinder 80 drives the first connecting block 81 to move forward, which in turn drives the third connecting block 84 to move forward synchronously. Since the positioning rod 85 is movably connected to the fourth connecting block 86, the positioning rod 85 can guide the movement of the third connecting block 84, ensuring that the third connecting block 84 moves smoothly until the third connecting block 84 merges with the fourth connecting block 86 on the machine tool 1. At this time, the third connecting block 84 and the fourth connecting block 86 move from the outside and inside of the table and chair frame 3. (The positioning block 71, in conjunction with the positioning mechanism 7,) forms a bidirectional clamping and fixing of the table and chair frame 3, completing the secondary precise positioning and stable clamping of the workpiece, effectively avoiding the workpiece displacement caused by impact force during the punching process; in the second stage, the fourth cylinder 80 continues to drive the first connecting block 81 to move forward, driving the second connecting block 82 and the punch 83 to move forward synchronously. After the punch 83 passes through the third connecting block 84, it performs punching operation on the table and chair frame 3 that has been precisely positioned and clamped. After the punching is completed, the fourth cylinder 80 drives each component to reset, releases the workpiece, and completes one punching cycle.

[0034] The core advantage of this collaborative design lies in integrating the positioning, clamping, and punching processes into a single operation, eliminating the need for manual step-by-step operation, significantly reducing processing time and improving efficiency. Simultaneously, before punching, secondary clamping is achieved through the merging of the third connecting block 84 and the fourth connecting block 86, combined with the precise positioning of the positioning mechanism 7, ensuring the workpiece is completely fixed during punching. This avoids positioning deviations that may occur in traditional equipment that involves positioning, clamping, and then punching, greatly improving the accuracy and consistency of hole machining. The positioning rod 85 ensures the stability of the punch pin. The coaxiality of the 83 movement avoids problems such as hole deformation and waste holes caused by the misalignment of the punch 83, further improving the punching quality. In addition, the corresponding adaptation of the punching mechanism 8 and the positioning mechanism 7 can realize precise punching at different positions of the table and chair frame 3, adapting to the processing needs of different specifications of table and chair frames 3. Combined with the dual-station support and clamping mechanism, two workpieces can be positioned, clamped and punched simultaneously, which greatly improves the batch processing capacity, solves the technical pain points of low processing efficiency, insufficient precision and poor batch adaptability of traditional equipment, and comprehensively optimizes the overall performance of punching processing of table and chair frames 3.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A punching device for table and chair frames, characterized in that, include: Machine tool; The first support mechanism is set on one side of the machine platform to horizontally support the table and chair frame, and one end of the table and chair frame is also supported by the first support mechanism; The second support mechanism is provided on the other side of the machine platform to horizontally support the table and chair frame. The first support mechanism and the second support mechanism are arranged opposite to each other, and one end of the other table and chair frame is held in place by the second support mechanism. A first pressing mechanism is provided on the machine platform and is used to abut against the other end of the table and chair frame on the first supporting mechanism; The second pressing mechanism is installed on the machine base and is used to press the table and chair frame on the second supporting mechanism from the longitudinal direction. A positioning mechanism is installed on the machine platform for positioning the table and chair frame; A punching mechanism is installed on the machine base and is adapted to the positioning mechanism. The movement of the punching mechanism and the positioning mechanism simultaneously achieve positioning, clamping and punching of the table and chair frame.

2. The table and chair frame punching equipment according to claim 1, characterized in that, The first supporting mechanism includes a first supporting block, a stop block, and a base plate. The first supporting block and the stop block are both fixed on the base plate. The base plate is fixed on the machine platform. The stop block is located on the outside of the machine platform. The first supporting block is adapted to support the table and chair frame, and one end of the table and chair frame abuts against the stop block.

3. The table and chair frame punching equipment according to claim 2, characterized in that, The second supporting mechanism includes a second supporting block and a backing plate. The second supporting block and the backing plate are fixed on the base plate, which is fixed on the machine platform. The second supporting block supports the table and chair frame, and one end of the table and chair frame abuts against the backing plate.

4. The table and chair frame punching equipment according to claim 3, characterized in that, The first pressing mechanism includes a first cylinder, which is mounted on the machine base. The output end of the first cylinder is provided with a first pressure plate. The first cylinder pushes the first pressure plate to press down on the other end of the table and chair frame, which works in conjunction with a stop block to fix the table and chair frame in place.

5. The table and chair frame punching equipment according to claim 4, characterized in that, The second pressing mechanism includes a second cylinder, which is fixed on the machine base. The output end of the second cylinder presses the table and chair frame and the mating plate vertically through the second pressure plate to press and fix the table and chair frame.

6. The table and chair frame punching equipment according to claim 5, characterized in that, The positioning mechanism includes a third cylinder and a positioning block. The third cylinder is mounted on the machine base and located inside the table and chair frame. The positioning block is fixed to the movable end of the third cylinder. An L-shaped positioning platform is formed on the outer side of the positioning block. The table and chair frame is adapted to support the positioning platform.

7. The table and chair frame punching equipment according to claim 6, characterized in that, The punching mechanism includes a fourth cylinder, which is fixed on the machine base and located outside the table and chair frame. A first connecting block is fixed to the output end of the fourth cylinder. A punch is fixed to the upper part of the first connecting block through a second connecting block. A positioning rod is connected to a third connecting block and passes through the first connecting block. A fourth connecting block is also provided on the machine base. The positioning rod is movably connected to the fourth connecting block. The fourth cylinder drives the third connecting block and the fourth connecting block to merge and clamp and fix the table and chair frame. The punch passes through the third connecting block and is used to punch holes in the table and chair frame.

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