A multi-station continuous punching mechanism
By working in concert with the multi-station rotary mechanism and the material transfer mechanism, the problems of indexing accuracy and material transfer in multi-station punching equipment are solved, achieving efficient and precise punching processing, which is suitable for the needs of intelligent production lines.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-21
- Publication Date
- 2026-06-12
AI Technical Summary
Existing multi-station punching equipment suffers from insufficient indexing accuracy, inconvenient material transfer, and low efficiency in complex punching processes, making it difficult to meet the demands for high-precision and high-efficiency processing.
The multi-station rotary mechanism and material transfer mechanism work together to achieve seamless connection of materials at different stations. The rotary divider ensures indexing accuracy, and punching and transfer are completed simultaneously to reduce idle time. PLC control is integrated to achieve parameterized adjustment.
It improves production efficiency, ensures the consistency and accuracy of punching positions, reduces manual intervention, and is suitable for the needs of intelligent production lines.
Smart Images
Figure CN224346762U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of punching equipment technology, and in particular relates to a multi-station continuous punching mechanism. Background Technology
[0002] In the metal processing industry, punching is one of the key processes in manufacturing sheet metal parts, pipes, and other components. Traditional punching equipment mainly adopts a single-station punching mode, relying on manual labor or simple mechanical devices for loading and unloading, which suffers from low production efficiency, high labor intensity, and unstable processing accuracy. With the development of industrial automation, multi-station punching equipment is gradually becoming an industry trend, but there are still many problems in the existing technology that urgently need to be solved:
[0003] 1) Existing equipment mostly uses cylinder drive or chain drive to achieve workstation switching, and the indexing accuracy is relatively large, which is difficult to meet the requirements of high-precision punching. Indexing error can easily lead to the displacement of the punching position, resulting in batches of scrap.
[0004] 2) Some multi-station punching equipment lacks an effective material transfer mechanism between stations. The transfer of materials between different stations relies on manual handling or simple conveying devices, which not only increases labor intensity but also easily causes damage to materials or deviations in processing positions, reducing the overall performance of the equipment.
[0005] 3) For materials requiring complex punching processes, such as those needing to be punched to different diameters, existing punching equipment often struggles to complete the process in one go. The traditional solution is to use multiple clamping and processing methods, which not only increases processing time and costs but also inevitably introduces positioning errors during multiple clamping processes, further affecting product quality.
[0006] Based on this, the present invention provides a novel multi-station continuous punching mechanism to overcome the above-mentioned defects. Utility Model Content
[0007] The purpose of this utility model is to provide a multi-station continuous punching mechanism. This multi-station continuous punching mechanism achieves seamless material connection through the cooperation of a multi-station rotating mechanism and a material transfer mechanism, and completes punching and transfer simultaneously, reducing idle time and improving efficiency. In addition, the rotating divider ensures indexing accuracy and ensures consistent punching.
[0008] The present invention adopts the following technical solution: a multi-station continuous punching machine, which includes a frame, a plurality of multi-station rotating mechanisms arranged side by side and sequentially on the frame, a punching mechanism arranged on one side of each multi-station rotating mechanism, and a material transfer mechanism arranged between two adjacent multi-station rotating mechanisms.
[0009] The multi-station rotating mechanism includes a rotating divider, a turntable, and a drive unit. The rotating divider includes an input shaft and an output shaft. The input shaft of the rotating divider is connected to the drive unit, and the output shaft of the rotating divider is connected to the turntable to drive the turntable to rotate.
[0010] The turntable has multiple material positions around its circumference for carrying materials, and at least one material position on the turntable is positioned opposite to the punch of the punching mechanism.
[0011] Furthermore, the punching diameter of several of the punching mechanisms gradually decreases along the material conveying direction.
[0012] Furthermore, the material transfer mechanism includes a lifting assembly, a rotating assembly installed at the output end of the lifting assembly, and a clamping transfer assembly installed on the rotating assembly;
[0013] The clamping and transfer assembly includes a clamping base plate and two clamping structures; the middle part of the clamping base plate is connected to the output end of the rotating assembly, and the two clamping structures are respectively installed at both ends of the clamping base plate.
[0014] Furthermore, the clamping structure includes a double-acting cylinder installed at the end of the clamping base support plate, a first clamping plate and a second clamping plate respectively installed on the telescopic ends on both sides of the double-acting cylinder, and the first clamping plate and the second clamping plate are arranged opposite to each other to form a clamping cavity.
[0015] Furthermore, both the first clamping plate and the second clamping plate have arc-shaped grooves on the side near the clamping cavity.
[0016] Furthermore, the surface of the arc-shaped groove is provided with a rubber layer.
[0017] Furthermore, the lifting assembly includes a lifting support mounted on the frame, a lifting cylinder mounted on the lifting support, a lifting platform mounted on the telescopic end of the lifting cylinder, and guide seats and guide rods mounted on both sides of the lifting support. One end of the guide rod is fixedly connected to the lifting platform, and the other end is slidably connected to the guide seat. The sliding direction of the guide rod is the same as the telescopic direction of the lifting cylinder.
[0018] Furthermore, the lifting assembly also includes an upper limit sensor and a lower limit sensor, which are used to limit the sliding stroke of the lifting platform and / or the guide rod.
[0019] Furthermore, the multi-station continuous punching machine also includes a feeding mechanism and a discharging mechanism. The feeding mechanism is located at one end of the frame and cooperates with the first multi-station rotating mechanism in the sequentially arranged multi-station rotating mechanisms. The discharging mechanism is located at the other end of the frame and cooperates with the last multi-station rotating mechanism in the sequentially arranged multi-station rotating mechanisms.
[0020] Furthermore, the feeding mechanism is arranged opposite to the punching mechanism located on one side of the first multi-station rotating mechanism; the unloading mechanism is arranged opposite to the punching mechanism located on one side of the last multi-station rotating mechanism.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0022] The general working process of the multi-station continuous punching machine in this utility model is as follows:
[0023] First, the material is placed on the material position of the turntable of the first multi-station rotary mechanism; then, the drive unit starts, and its power is transmitted to the input shaft of the rotary divider. The input shaft drives the rotary divider, which converts continuous rotation into intermittent indexing motion, thereby driving the turntable to rotate at a set angle (such as 60°, 90°, 120°, etc., depending on the number of material positions) and rhythm.
[0024] Next, multiple material positions on the turntable stop sequentially at the punching station, each capable of holding the material to be processed. When a material position rotates to align with the punch of the punching mechanism, the rotary divider locks the turntable, and the punch descends to complete the punching action.
[0025] Then, the material transfer mechanism operates synchronously between adjacent turntables, transferring the material processed by the current multi-station rotary mechanism to the corresponding material position on the turntable of the next multi-station rotary mechanism, and repeating the above process to achieve secondary punching until the processing of materials on all material positions is completed, and finally the finished product is output.
[0026] This multi-station continuous punching machine, through the collaboration of a multi-station rotating mechanism and a material transfer mechanism, achieves seamless material connection at different stations. Punching and material transfer can be performed synchronously, reducing idle time and improving production efficiency. Simultaneously, the rotary divider ensures the indexing accuracy of the turntable, avoiding positional errors associated with traditional cylinder or chain drives, guaranteeing consistent punching positions, and making it suitable for high-precision parts processing. Furthermore, the entire process of this multi-station continuous punching machine is automatically completed by the drive unit, rotary divider, punching mechanism, and material transfer mechanism, reducing manual intervention. It can be integrated with PLC control for parameterized adjustment, making it suitable for intelligent production lines. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of a multi-station continuous punching machine according to a specific embodiment of the present invention;
[0029] Figure 2 for Figure 1 A schematic diagram of the structure after removing some parts;
[0030] Figure 3 for Figure 2 A magnified view of a portion of the image;
[0031] The components include: frame 1; multi-station rotating mechanism 2, rotating divider 20, input shaft 201, output shaft 202, turntable 21, material position 211, drive unit 22; punching mechanism 3, punch 30; material transfer mechanism 4, lifting assembly 40, lifting support 401, lifting cylinder 402, lifting platform 403, guide seat 404, guide rod 405, upper limit sensor 406, lower limit sensor 407, rotating assembly 41, clamping and transfer assembly 42, clamping base support plate 421, clamping structure 422, double-acting cylinder 4221, first clamping plate 4222, second clamping plate 4223, arc groove 4224; loading mechanism 5; unloading mechanism 6. Detailed Implementation
[0032] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0033] The following is in conjunction with the appendix Figure 1 To be continued Figure 3 The present invention will be described in detail with reference to specific embodiments:
[0034] like Figure 1-3 As shown, this utility model provides a multi-station continuous punching machine, which includes a frame 1, a plurality of multi-station rotating mechanisms 2 arranged side by side and sequentially on the frame 1, a punching mechanism 3 arranged on one side of each of the multi-station rotating mechanisms 2, and a material transfer mechanism 4 arranged between two adjacent multi-station rotating mechanisms 2.
[0035] The multi-station rotating mechanism 2 includes a rotating divider 20, a turntable 21, and a drive unit 22. The rotating divider 20 includes an input shaft 201 and an output shaft 202. The input shaft 201 of the rotating divider 20 is connected to the drive unit 22, and the output shaft 202 of the rotating divider 20 is connected to the turntable 21 to drive the turntable 21 to rotate.
[0036] The turntable 21 is provided with a plurality of material positions 211 for carrying materials in the circumference, and at least one material position 21 in the turntable 21 is arranged opposite to the punch 30 of the punching mechanism 3. The punch 30 is used to punch the material on the material position 21.
[0037] The general working process of the multi-station continuous punching machine in this utility model is as follows:
[0038] First, the material is placed on the material position 211 of the turntable 21 of the first multi-station rotary mechanism 2; then, the drive unit 22 is started, and its power is transmitted to the input shaft 201 of the rotary divider 20. The input shaft 201 drives the rotary divider 20, which converts continuous rotation into intermittent indexing motion, thereby driving the turntable 21 to rotate at a set angle (such as 60°, 90°, 120°, etc., depending on the number of material positions 211) and rhythm.
[0039] Next, multiple material positions 211 on the turntable 21 stop sequentially at the punching station, each material position 211 can hold the material to be processed. When a material position 211 rotates to align with the punch 30 of the punching mechanism 3, the rotary divider 20 locks the turntable 21, and the punch 30 descends to complete the punching action.
[0040] Then, the material transfer mechanism 4 operates synchronously between adjacent turntables 21, transferring the material processed by the current multi-station rotary mechanism 2 to the corresponding material position 211 of the turntable 21 of the next multi-station rotary mechanism 2, and repeating the above work process to achieve secondary punching until the processing of materials on all material positions 211 is completed, and finally the finished product is output.
[0041] This multi-station continuous punching machine, through the collaboration of the multi-station rotating mechanism 2 and the material transfer mechanism 4, achieves seamless material connection at different stations. Punching and material transfer can be carried out synchronously, reducing idle time and improving production efficiency. Simultaneously, the rotary divider 20 ensures the indexing accuracy of the turntable, avoiding positional errors associated with traditional cylinder or chain drives, guaranteeing consistent punching positions, and making it suitable for high-precision parts processing. Furthermore, the entire process of this multi-station continuous punching machine is automatically completed by the drive unit 22, rotary divider 20, punching mechanism 3, and material transfer mechanism 4, reducing manual intervention. It can be integrated with PLC control for parameterized adjustment (such as speed and punching pressure), making it suitable for intelligent production lines.
[0042] Furthermore, in some specific embodiments, the diameter of the punches 30 of the punching mechanisms 3 gradually decreases along the material conveying direction, achieving step-by-step continuous punching. Using step-by-step continuous punching can reduce material deformation and tearing during the punching process, reduce burrs and roughness at the punching edges, thereby improving the quality and precision of the punching. In addition, when the spacing between adjacent holes is small (such as densely packed heat dissipation holes), punching larger holes first can reserve buffer space for subsequent smaller holes, preventing material stretching and tearing during continuous punching.
[0043] In this embodiment, two multi-station rotating mechanisms 2 are provided, namely a first multi-station rotating mechanism and a second multi-station rotating mechanism. The diameter of the punch 30 corresponding to the first multi-station rotating mechanism is larger than the diameter of the punch 30 corresponding to the second multi-station rotating mechanism, so as to realize stepped punching.
[0044] It should be noted that the present invention does not limit the specific structure of the punching mechanism 3. It can be designed and selected by those skilled in the art according to the actual situation. For example, in this embodiment, the punching mechanism 3 includes a punch lifting assembly and a punch 30 installed on the punch lifting assembly. The punch 30 is driven to move up and down by the punch lifting assembly. In the present invention, the punch lifting assembly can be a screw-type lifting assembly, a conveyor belt lifting assembly, or a linear slide module, etc.
[0045] Furthermore, in some specific embodiments, the material transfer mechanism 4 includes a lifting assembly 40, a rotating assembly 41 installed at the output end of the lifting assembly 40, and a clamping transfer assembly 42 installed on the rotating assembly 41.
[0046] The clamping and transfer assembly 42 includes a clamping base support plate 421 and two clamping structures 422; the middle part of the clamping base support plate 421 is connected to the output end of the rotating assembly 41; the two clamping structures 422 are arranged back to back and are respectively installed at both ends of the clamping base support plate 421.
[0047] Specifically, the clamping structure 422 includes a double-acting cylinder 4221 installed at the end of the clamping base support plate 421, a first clamping plate 4222 and a second clamping plate 4223 respectively installed at the telescopic ends on both sides of the double-acting cylinder 4221, and the first clamping plate 4222 and the second clamping plate 4223 are arranged opposite to each other to form a clamping cavity.
[0048] The general working process of the material transfer mechanism 4 is as follows: In the initial state, the first clamping plate 4222 and the second clamping plate 4223 are separated, the clamping cavity is in an open state, and the lifting assembly 40 is in a high position and ready for operation. Then, the lifting assembly 40 drives the entire clamping and transfer assembly 42 to descend, so that the clamping cavity is aligned with the material on the current workstation turntable 21. The double-acting cylinder 4221 is activated, and the telescopic ends on both sides push the first clamping plate 4222 and the second clamping plate 4223 to close, clamping the material.
[0049] Then, the lifting assembly 40 raises, removing the material from the current workstation turntable 21. The rotating assembly 41 rotates 180°, causing the two opposing clamping structures 422 to interchange positions. Next, the lifting assembly 40 lowers again, precisely placing the material at the material position 211 of the next multi-station rotating mechanism 2 turntable 21. The double-acting cylinder 4221 reverses its action, releasing the clamping plate and releasing the material. Finally, the lifting assembly 40 rises, awaiting the next cycle.
[0050] In this embodiment, both the first clamping plate 4222 and the second clamping plate 4223 have arc-shaped grooves 4224 on the side near the clamping cavity, and a rubber layer is provided on the surface of the arc-shaped grooves 4224. The curved surface structure of the arc-shaped grooves 4224 can naturally conform to the outer contour of cylindrical or tubular materials (such as metal pipes and shaft parts), avoiding the line contact stress concentration problem caused by traditional flat clamping plates. At the same time, the guiding effect of the arc-shaped grooves 4224 enables the material to automatically center during clamping, reducing the risk of clamping deviation or falling due to positional deviation. The rubber layer has elastic deformation capability, which can adapt to the material size difference within a certain size range, improving versatility; at the same time, the buffering characteristics of the rubber layer effectively reduce the contact stress during clamping, preventing hard clamping plates (such as metal) from directly scratching the material surface (such as polished stainless steel pipes).
[0051] Furthermore, in some specific embodiments, the lifting assembly 40 includes a lifting support 401 mounted on the frame 1, a lifting cylinder 402 mounted on the lifting support 401, a lifting platform 403 mounted on the telescopic end of the lifting cylinder 402, and guide seats 404 and guide rods 405 mounted on both sides of the lifting support 401. One end of the guide rod 405 is fixedly connected to the lifting platform 403, and the other end is slidably connected to the guide seat 404. The sliding direction of the guide rod 405 is the same as the telescopic direction of the lifting cylinder 402. During operation, activating the lifting cylinder 402 drives the lifting platform 403 to rise and fall, and with the guidance of the guide seat 404 and guide rod 405, the stability of the sliding is improved.
[0052] More specifically, the lifting assembly 40 further includes an upper limit sensor 406 and a lower limit sensor 407. These sensors limit the sliding stroke of the lifting platform 403 and / or the guide rod 405. When the stroke limit is approached, a signal is triggered to stop the lifting cylinder 402 from operating. The specific type of the upper limit sensor 406 and lower limit sensor 407 is not limited in this invention; for example, photoelectric sensors can be used.
[0053] Furthermore, in some specific embodiments, the multi-station continuous punching machine further includes a feeding mechanism 5 and a discharging mechanism 6. The feeding mechanism 5 is located at one end of the frame 1 and cooperates with the first multi-station rotary mechanism in the sequentially arranged multi-station rotary mechanisms 2 to feed material onto the material position 211 of the turntable 21 of the first multi-station rotary mechanism. The discharging mechanism 6 is located at the other end of the frame 1 and cooperates with the last multi-station rotary mechanism in the sequentially arranged multi-station rotary mechanisms 2 to discharge material from the turntable 21 of the last multi-station rotary mechanism to the next process. The feeding mechanism 5 and the discharging mechanism 6 can increase the automation level of feeding and discharging and reduce the intensity of manual labor. It should be noted that the feeding mechanism 5 and the discharging mechanism 6 in this utility model can be designed with reference to the feeding and discharging mechanisms in the prior art, or with reference to the material transfer mechanism 4 mentioned above. No specific limitation is made in this utility model.
[0054] In this embodiment, the feeding mechanism 5 is arranged opposite to the punching mechanism 3 located on one side of the first multi-station rotating mechanism; the unloading mechanism 6 is arranged opposite to the punching mechanism 3 located on one side of the last multi-station rotating mechanism. This optimized layout reduces the equipment's floor space.
[0055] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.
Claims
1. A multi-station continuous punching mechanism, characterized in that: It includes a frame, several multi-station rotary mechanisms arranged side by side and sequentially on the frame, a punching mechanism disposed on one side of each multi-station rotary mechanism, and a material transfer mechanism disposed between two adjacent multi-station rotary mechanisms. The multi-station rotating mechanism includes a rotating divider, a turntable, and a drive unit. The rotating divider includes an input shaft and an output shaft. The input shaft of the rotating divider is connected to the drive unit, and the output shaft of the rotating divider is connected to the turntable to drive the turntable to rotate. The turntable has multiple material positions around its circumference for carrying materials, and at least one material position on the turntable is positioned opposite to the punch of the punching mechanism.
2. The multi-station continuous punching mechanism according to claim 1, characterized in that: The punching diameter of several of the punching mechanisms gradually decreases along the material conveying direction.
3. The multi-station continuous punching mechanism according to claim 1, characterized in that: The material transfer mechanism includes a lifting assembly, a rotating assembly installed at the output end of the lifting assembly, and a clamping transfer assembly installed on the rotating assembly; The clamping and transfer assembly includes a clamping base plate and two clamping structures; the middle part of the clamping base plate is connected to the output end of the rotating assembly, and the two clamping structures are respectively installed at both ends of the clamping base plate.
4. The multi-station continuous punching mechanism according to claim 3, characterized in that: The clamping structure includes a double-acting cylinder installed at the end of the clamping base support plate, a first clamping plate and a second clamping plate respectively installed on the telescopic ends on both sides of the double-acting cylinder, and the first clamping plate and the second clamping plate are arranged opposite to each other to form a clamping cavity.
5. The multi-station continuous punching mechanism according to claim 4, characterized in that: Both the first clamping plate and the second clamping plate have an arc-shaped groove on the side near the clamping cavity.
6. The multi-station continuous punching mechanism according to claim 5, characterized in that: The surface of the arc-shaped groove is provided with a rubber layer.
7. The multi-station continuous punching mechanism according to claim 3, characterized in that: The lifting assembly includes a lifting support mounted on the frame, a lifting cylinder mounted on the lifting support, a lifting platform mounted on the telescopic end of the lifting cylinder, and guide seats and guide rods mounted on both sides of the lifting support. One end of the guide rod is fixedly connected to the lifting platform, and the other end is slidably connected to the guide seat. The sliding direction of the guide rod is the same as the telescopic direction of the lifting cylinder.
8. The multi-station continuous punching mechanism according to claim 7, characterized in that: The lifting assembly also includes an upper limit sensor and a lower limit sensor, which are used to limit the sliding stroke of the lifting platform and / or the guide rod.
9. The multi-station continuous punching mechanism according to claim 1, characterized in that: The multi-station continuous punching machine also includes a feeding mechanism and a discharging mechanism. The feeding mechanism is located at one end of the frame and cooperates with the first multi-station rotating mechanism in the sequentially arranged multi-station rotating mechanism. The discharging mechanism is located at the other end of the frame and cooperates with the last multi-station rotating mechanism in the sequentially arranged multi-station rotating mechanism.
10. The multi-station continuous punching mechanism according to claim 9, characterized in that: The feeding mechanism is arranged opposite to the punching mechanism located on one side of the first multi-station rotating mechanism; the unloading mechanism is arranged opposite to the punching mechanism located on one side of the last multi-station rotating mechanism.