Guide mechanism for metal cutting
By designing a combination of a feeding assembly and a guiding assembly, the problem of guiding and positioning metal strips during laser cutting was solved, achieving high-precision cutting results, avoiding the impact of strip swaying, and improving cutting accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINXIANG TENGSHENG LIFTING EQUIP CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
In existing technologies, it is difficult to achieve high precision when cutting metal strips with lasers, especially the product guidance precision formed after a single stamping is insufficient, resulting in low cutting accuracy and easy scrapping.
A guiding mechanism including a material pulling assembly and a guiding assembly is designed. Through the combination of guide groove, positioning pin, clamping cylinder and pressure plate, high-precision guiding and positioning of metal strip is achieved. The material pulling wheel and material pulling teeth are driven by a drive motor to pull at equal distances. Combined with the role of positioning pin and clamping cylinder, cutting accuracy is ensured.
It improves the cutting accuracy of metal strips, avoids the influence of strip swaying, and achieves high-precision laser cutting results.
Smart Images
Figure CN224223001U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of metal strip cutting technology, and in particular relates to a guiding mechanism for metal cutting. Background Technology
[0002] like Figure 1 , 3 The metal strip 1 includes a long strip-shaped strip body 11 and positioning holes 12 evenly distributed on both sides of the strip body 11 along its length. The metal strip 1 is placed into an existing stamping device and intermittently pulled, so that the stamping device stamps the strip body 11 inside the two positioning holes 12, thereby stamping out the required product 13, such as a new energy battery electrode connecting piece or other product structure. The positioning holes 12 are used to position the metal strip 1 during the stamping of the strip body 11. After the metal strip 1 is stamped, the product 13 needs to be cut off from the strip body 11. In the prior art, a secondary stamping is used, that is, the stamping device is still used to stamp and cut the product 13 off the strip body 11. However, when the product 13 is an irregular structure or the metal strip 1 is too thin to be stamped, the prior art often uses laser cutting to cut the product 13. When high precision is required for the product, a high-precision guiding mechanism needs to be set up to guide and position the metal strip 1 after one stamping, thereby improving the precision of laser cutting.
[0003] In the prior art, Chinese utility model patent application number 202321628020.4 discloses a material belt guiding mechanism, including two side plates; a support plate is set at the front end between the two side plates, and two horizontal guide wheels are provided on the support plate, with the gap between the two horizontal guide wheels serving as a material belt passage channel; a horizontal fixing plate is set in the central area between the two side plates, and upper and lower guide components are set at the ends between the two side plates; a dust removal component is provided between the horizontal fixing plate and the upper and lower guide components. This improves working efficiency and reduces production costs.
[0004] The aforementioned patented technology guides the strip by setting up horizontal guide wheels and upper and lower guide components. However, its guiding accuracy is limited. When laser cutting products or when the metal strip is thin, it is difficult to achieve cutting accuracy, resulting in product scrap. Moreover, the above technology is not suitable for guiding metal strips that have already been stamped into products. Utility Model Content
[0005] To address the technical problems existing in the prior art, this application provides a high-precision guiding mechanism for metal cutting that can be applied to the high-precision guiding and positioning of metal strips after a single stamping, so as to achieve high-precision laser cutting of products.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A metal cutting guide mechanism includes a base plate and a pulling assembly and a guiding assembly disposed on the base plate. The guiding assembly includes a support frame fixedly connected to the base plate and a guide plate horizontally fixedly connected to the support frame. A guide groove is formed on the upper surface of the guide plate along its length, and a material discharge groove is formed at the bottom of the guide groove. A positioning cylinder is disposed on the support frame, and a connecting block is disposed on the guide rod of the positioning cylinder. A positioning pin that can pass through a positioning hole of a metal strip is vertically fixedly inserted into the connecting block. A clamping cylinder is disposed on the guide plate, and a first pressure plate is fixedly connected to the guide rod of the clamping cylinder above the guide plate. The metal strip is embedded in the guide groove and pulled by the pulling assembly. When the guide rod of the clamping cylinder extends, a gap is provided between the first pressure plate and the bottom of the guide groove for the metal strip to slide. When the guide rod of the clamping cylinder retracts, the first pressure plate clamps the metal strip.
[0008] Preferably, a guide plate clearance groove and a first pressure plate clearance groove are respectively provided at the bottom of the guide groove and on the first pressure plate. The connecting block can slide through the material discharge groove. When the guide rod of the positioning cylinder extends, the positioning pin can be sequentially inserted into the guide plate clearance groove, the positioning hole of the metal strip, and the first pressure plate clearance groove.
[0009] Preferably, a buffer pad is fixedly connected to the lower end face of the first pressure plate opposite to the bottom of the guide groove. When the guide rod of the pressing cylinder retracts, the buffer pad presses the metal strip.
[0010] Preferably, connecting plates are vertically fixedly connected to both sides of the guide plate, and a clamping cylinder is vertically fixedly connected to the connecting plate. The guide rod of the clamping cylinder can slide through the guide plate and extend to the top of the guide plate. The first pressure plate is horizontally fixedly connected to the guide rod of the clamping cylinder above the guide plate.
[0011] Preferably, a second pressure plate is horizontally fixedly connected to the guide plate between the material pulling assembly and the first pressure plate along its length direction, and a gap is provided between the lower end face of the second pressure plate and the bottom of the guide groove for the metal strip to slide.
[0012] Preferably, the material pulling assembly includes a vertical plate on a base plate disposed on one side of the guide plate, a drive motor horizontally fixedly connected to the vertical plate, a fixed sleeve coaxially fixedly connected to the output shaft of the drive motor, and material pulling wheels coaxially fixedly connected to both ends of the fixed sleeve. Multiple material pulling teeth are evenly distributed on the inner sides of the two material pulling wheels. A rotatable pressure roller is disposed on the vertical plate, and the pressure roller is disposed above the material pulling wheel outside the material pulling teeth. The metal strip passes between the pressure roller and the material pulling wheel. The drive motor drives the material pulling wheel to rotate the material pulling teeth. The material pulling teeth are sequentially inserted into each positioning hole of the metal strip to pull the metal strip.
[0013] Preferably, a rotating plate is rotatably connected to the upright plate, the pressure roller is rotatably connected to the rotating plate, a first pull rod is fixedly connected to the rotating plate, a second pull rod is fixedly connected to the upright plate, and the two ends of the tension spring are respectively fixedly connected to the first pull rod and the second pull rod; the tension spring is in a stretched state and causes the pressure roller to have a tendency to rotate toward the pulling roller so that the pressure roller presses against the pulling roller.
[0014] Preferably, a fixing plate is horizontally fixedly connected to the upright plate on the side of the pull wheel away from the guide assembly, and a guide frame is fixedly connected to the fixing plate. The upper part of the guide frame is bent toward the fixing sleeve and is located below the metal strip.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention utilizes a material pulling assembly to pull the metal strip forward, and a guiding assembly to guide and position the metal strip. A guide groove and a first pressure plate allow the metal strip to slide between them, thus guiding it. A positioning cylinder and a positioning pin are used; during the guiding and positioning of the metal strip, the positioning pin is inserted into a positioning hole, thus positioning the metal strip. Furthermore, a clamping cylinder and a first pressure plate clamp the metal strip after positioning, enabling high-precision cutting of the product on the metal strip and preventing it from wobbling and affecting cutting accuracy.
[0017] By setting up a material pulling assembly including a vertical plate, a drive motor, a fixed sleeve, a pulling wheel, pulling teeth, and a pressure roller, the drive motor drives the pulling wheel, which in turn drives the pulling teeth to rotate, thereby achieving high-precision, equidistant, and intermittent pulling of the metal strip. While improving the cutting accuracy of the metal strip, the action of the pulling teeth and the positioning pins tensions the metal strip, further improving the guiding and positioning accuracy, thus enhancing the cutting accuracy. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0019] Figure 2 This is a side view of the structure of this utility model.
[0020] Figure 3 This is a schematic diagram of the material pulling assembly of this utility model.
[0021] Figure 4 This is a side view of the material pulling assembly of this utility model.
[0022] Figure 5 This is a schematic diagram of the structure of the guide component of this utility model.
[0023] Figure 6 This is a partial structural diagram of the guide component of this utility model.
[0024] Figure 7 This is a schematic diagram of the structure of the guide plate of this utility model.
[0025] Figure 8 This is a schematic diagram of the connection structure of the positioning cylinder, connecting block and positioning pin of this utility model.
[0026] Figure 9 This is a schematic diagram of the connection structure between the clamping cylinder and the first pressure plate of this utility model.
[0027] In the diagram: 1. Metal strip, 11. Strip body, 12. Positioning hole, 13. Product.
[0028] 2. Base plate
[0029] 3. Material pulling assembly; 31. Vertical plate; 311. Rotating shaft; 312. Rotating bearing; 313. Fixed plate; 314. Guide frame; 32. Drive motor; 33. Fixed sleeve; 34. Material pulling wheel; 341. Material pulling tooth; 35. Pressure roller; 351. Pressure ring; 36. Rotating plate; 37. First pull rod; 38. Second pull rod; 39. Tension spring.
[0030] 4. Guide assembly; 41. Support frame; 42. Guide plate; 421. Guide groove; 422. Guide plate groove; 423. Material discharge groove; 424. Guide plate clearance groove; 43. Positioning cylinder; 44. Connecting block; 45. Positioning pin; 46. Connecting plate; 47. Pressing cylinder; 48. First pressure plate; 481. Buffer pad; 4811. Buffer pad clearance groove; 482. First pressure plate clearance groove; 49. Second pressure plate. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model. Example
[0033] See appendix Figure 1 , 2 As shown, a metal cutting guide mechanism includes a base plate 2 and a material pulling assembly 3 and a guide assembly 4 disposed on the base plate 2. The material pulling assembly 3 is disposed on one side of the guide assembly 4 and is used to pull the metal strip 1 to slide on the guide assembly 4. The guide assembly 4 is used to guide and position the metal strip 1.
[0034] See Figure 5 , 6 As shown in Figure 7, the guide assembly 4 includes a support frame 41 fixedly connected to the base plate 2 by bolts, and two support frames 41 are arranged opposite each other. A guide plate 42 is horizontally fixedly connected to the upper end face of the support frame 41. A guide groove 421 is formed on the upper end face of the guide plate 42 along its length direction. Furthermore, when the product 13 on the metal strip 1 is in a bent state, in order to avoid the product 13 interfering with the bottom of the guide groove 421 and blocking the metal strip 1 from moving forward, a guide plate groove 422 is formed on the bottom of the guide groove 421 along the length direction of the guide plate 42. In order to facilitate the collection of the cut product 13, a discharge channel 423 is formed on the bottom of the guide plate groove 422. The laser-cut product 13 falls from the discharge channel 423 into the collection bin (not shown in the figure) below the guide plate 42 or is directly conveyed by the conveyor belt assembly set below the guide plate 42.
[0035] See Figure 8As shown, in order to position the metal strip 1, in this embodiment, a positioning cylinder 43 is vertically fixedly installed on a support frame 41 away from the material pulling assembly 3. A connecting block 44 is fixedly installed on the guide rod of the positioning cylinder 43. A positioning pin 45 is vertically fixedly inserted into the connecting block 44. There are two vertically arranged positioning pins 45, and the distance between them corresponds to the positioning holes 12 on both sides of the metal strip 1. That is, when the guide rod of the positioning cylinder 43 extends, it can drive the two positioning pins 45 to be inserted into the two corresponding positioning holes 12 of the metal strip 1.
[0036] In order to improve the cutting accuracy of product 1 by pressing the metal strip 1 after it is positioned by the positioning pin 45, in this embodiment, a connecting plate 46 is vertically fixed to both sides of the guide plate 42 with the material discharge slot 423 by bolts. A pressing cylinder 47 is vertically fixed to the connecting plate 46 by bolts. The guide rod of the pressing cylinder 47 can slide through the guide plate 42 and extend above the guide plate 42. The first pressure plate 48 is horizontally fixed on the guide rod of the pressing cylinder 47 above the guide plate 42.
[0037] See Figure 9 As shown, when the guide rod of the clamping cylinder 47 extends, a gap is provided between the first pressure plate 48 and the bottom of the guide groove 421 for the metal strip 1 to slide. When the guide rod of the clamping cylinder 47 retracts, the first pressure plate 48 can clamp the metal strip 1. Furthermore, an elastic buffer pad 481, such as rubber or sponge material, is fixedly bonded to the lower end face of the first pressure plate 48 opposite to the bottom of the guide groove 421. When the guide rod of the clamping cylinder 47 retracts, the buffer pad 481 clamps the metal strip 1.
[0038] Furthermore, a second pressure plate 49 is horizontally fixed along the length of the guide plate 42 between the material pulling assembly 3 and the first pressure plate 48 by bolts. A gap is provided between the lower end face of the second pressure plate 49 and the bottom of the guide groove 421 for the metal strip 1 to slide. It should be noted that the depth of the guide groove 421 can be adapted according to the thickness of the metal strip 1, that is, the distance between the lower end face of the second pressure plate 49 and the bottom of the guide groove 421 can be equal to or slightly greater than the thickness of the metal strip 1, thereby achieving precise guidance of the metal strip 1. When the guide rod of the clamping cylinder 47 extends, the first pressure plate 48 and the bottom of the guide groove 421 provide initial guidance for the metal strip 1. When the thickness of the metal strip 1 is relatively thin, a cylinder with a smaller stroke should be selected for the clamping cylinder 47.
[0039] Furthermore, in order to limit the metal strip 1 when the positioning pin 45 is inserted into the positioning hole 12 and prevent it from being excessively pushed up due to the insertion of the positioning pin 45, guide plate clearance groove 424 and first pressure plate clearance groove 482 are respectively opened on the bottom of the guide groove 421 and the first pressure plate 48. In addition, a buffer pad clearance groove 4811 is also provided on the buffer pad 481. The connecting block 44 can slide through the material discharge groove 423. When the guide rod of the positioning cylinder 43 extends, the positioning pin 45 can be sequentially inserted into the guide plate clearance groove 424, the positioning hole 12 of the metal strip 1 and the first pressure plate clearance groove 482.
[0040] See Figure 3 , 4 As shown, the material pulling assembly 3 includes a vertical plate 31 fixedly mounted on a base plate 2 on one side of a guide plate 42 by bolts, a drive motor 32 horizontally fixedly mounted on the vertical plate 31 by bolts, a fixed sleeve 33 coaxially fixedly connected to the output shaft of the drive motor 32, and material pulling wheels 34 coaxially fixedly connected to both ends of the fixed sleeve 33. Multiple material pulling teeth 341 are evenly distributed on the inner side of the two material pulling wheels 34. A rotatable pressure wheel 35 is provided on the vertical plate 31, and the pressure wheel 35 is located above the material pulling wheel 34 outside the material pulling teeth 341.
[0041] Specifically, the included angle between two adjacent pulling teeth 341 is the same. When the drive motor 32 drives the pulling wheel 34 to rotate, each pulling tooth 341 will sequentially enter and exit the positioning hole 12 of the metal strip 1. During the process of each pulling tooth 341 entering and exiting the positioning hole 12, it will pull the metal strip 1 forward. The drive motor 32 can be a servo motor with existing closed-loop control, so as to precisely control the rotation angle of the pulling wheel 34 and the pulling teeth 341, thereby controlling the forward distance of the metal strip 1.
[0042] A rotating plate 36 is rotatably connected to the upright plate 31. A rotating shaft 311 is horizontally fixedly embedded on one side of the upright plate 31, and a rotating bearing 312 is fixedly sleeved on the rotating shaft 311. The rotating plate 36 is fixedly sleeved on the outer ring of the rotating bearing 312. A pressure roller 35 is rotatably connected to the other side of the rotating plate 36. Both ends of the pressure roller 35 extend outwards from its outer circumference to form pressure rings 351, which are positioned above the pulling roller 34 outside the pulling teeth 341. The metal strip 1 passes between the pressure roller 35 and the pulling roller 34. The pressure ring 351 and the pulling roller 34 outside the pulling teeth 341 respectively abut against the upper and lower end faces of the metal strip 1, thereby guiding the metal strip 1.
[0043] In order to make the pressure ring 351 press the metal strip 1, a first pull rod 37 is horizontally fixedly inserted on the rotating plate 36. The first pull rod 37 is set close to the pressure roller 35. A second pull rod 38 is horizontally fixedly connected on the vertical plate 31. The second pull rod 38 is set lower than the first pull rod 37. The two ends of the tension spring 39 are respectively fixedly hung on the first pull rod 37 and the second pull rod 38. The tension spring 39 is in a stretched state and makes the pressure roller 35 tend to rotate toward the pulling roller 34 so that the pressure ring 351 on the pressure roller 35 presses the pulling roller 34.
[0044] Furthermore, in order to guide the cut metal strip 1, a fixing plate 313 is horizontally fixed to the upright plate 31 on the side away from the guide assembly 4 and the pull wheel 34 by bolts. A guide frame 314 is fixed to the fixing plate 313 by bolts. The upper part of the guide frame 314 is bent toward the fixing sleeve 33 and is located below the metal strip 1.
[0045] The working principle and process of this embodiment are as follows:
[0046] like Figure 1 As shown, in the initial state, the guide rod of the positioning cylinder 43 is in the retracted state, and the guide rod of the clamping cylinder 47 is in the extended state. The metal strip 1 of the stamped product 13 to be cut is sequentially passed through the guide groove 421 below the first pressure plate 48 and the second pressure plate 49, and extends to the space between the pressure ring 351 and the pull wheel 34, so that a certain pull tooth 341 is locked in a certain positioning hole 12. It should be noted that a product collection bin or an existing conveyor belt assembly can be set below the material discharge channel 423, and an existing laser cutting device can be set above the material discharge channel 423 for laser cutting of the product 13 at the material discharge channel 423.
[0047] Then, the drive motor 32 drives the pull wheel 34 to rotate at a set angle, that is, adjusts the number of pull teeth 341 sequentially passing through and disengaging from the positioning hole 12 according to the length of the material drop channel 423. After the pull wheel 34 rotates at the set angle, the drive motor 32 stops. At this time, the guide rod of the positioning cylinder 43 extends so that the positioning pin 45 passes through the corresponding positioning hole 13, thereby positioning the metal strip 1. After that, the guide rod of the pressing cylinder 47 retracts to drive the first pressure plate 48 to move down so that the buffer pad 481 presses the two sides of the metal strip 1.
[0048] The laser cutting equipment sequentially laser cuts the product 13 above the material feeding slot 423. After the cutting is completed, the guide rod of the clamping cylinder 47 extends and the guide rod of the positioning cylinder 43 retracts.
[0049] The drive motor 32 drives the pull wheel 34 to rotate at a set angle again, and repeats the above process to complete the guiding, positioning and cutting of the entire roll of metal strip 1.
[0050] It should be noted that the metal cutting guide mechanism also includes an existing controller. The controller connects to and controls the drive motor 32, the positioning cylinder 43 and the clamping cylinder 47. The specific connection method and control principle are existing technologies. As long as the above working process can be met, it is acceptable. All parts not described in this specification are existing technologies and will not be elaborated here.
[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A guiding mechanism for metal cutting, comprising a base plate and a pulling assembly and a guiding assembly disposed on the base plate, characterized in that: The guiding assembly includes a support frame fixedly connected to the base plate, a guide plate horizontally fixedly connected to the support frame, a guide groove is formed on the upper surface of the guide plate along its length, and a material discharge channel is formed at the bottom of the guide groove. A positioning cylinder is provided on the support frame, a connecting block is provided on the guide rod of the positioning cylinder, and a positioning pin that can be inserted into the positioning hole of the metal strip is vertically fixed on the connecting block. A clamping cylinder is provided on the guide plate, and a first pressure plate is fixedly connected to the guide rod of the clamping cylinder above the guide plate; The metal strip is embedded in the guide groove and pulled by the pulling assembly. When the guide rod of the clamping cylinder extends, there is a gap between the first pressure plate and the bottom of the guide groove for the metal strip to slide. When the guide rod of the clamping cylinder retracts, the first pressure plate clamps the metal strip.
2. The guide mechanism for metal cutting according to claim 1, characterized in that: Guide plate clearance groove and first pressure plate clearance groove are respectively provided at the bottom of the guide groove and on the first pressure plate. The connecting block can slide through the material discharge groove. When the guide rod of the positioning cylinder extends, the positioning pin can be sequentially inserted into the guide plate clearance groove, the positioning hole of the metal strip and the first pressure plate clearance groove.
3. The guiding mechanism for metal cutting according to claim 1, characterized in that: A buffer pad is fixedly connected to the lower end face of the first pressure plate opposite to the bottom of the guide groove. When the guide rod of the clamping cylinder retracts, the buffer pad clamps the metal strip.
4. The guide mechanism for metal cutting according to claim 1, characterized in that: Connecting plates are vertically fixed to both sides of the guide plate, and clamping cylinders are vertically fixed to the connecting plates. The guide rod of the clamping cylinder can slide through the guide plate and extend to the top of the guide plate. The first pressure plate is horizontally fixed to the guide rod of the clamping cylinder above the guide plate.
5. The guide mechanism for metal cutting according to claim 1, characterized in that: A second pressure plate is horizontally fixedly connected to the guide plate between the material pulling assembly and the first pressure plate along its length direction. A gap is provided between the lower end face of the second pressure plate and the bottom of the guide groove for the metal strip to slide.
6. A guide mechanism for metal cutting according to any one of claims 1-5, characterized in that: The material pulling assembly includes a vertical plate on a base plate on one side of a guide plate, a drive motor horizontally fixedly connected to the vertical plate, a fixed sleeve coaxially fixedly connected to the output shaft of the drive motor, and material pulling wheels coaxially fixedly connected to both ends of the fixed sleeve. Multiple material pulling teeth are evenly distributed on the inner sides of the two material pulling wheels. A rotatable pressure roller is provided on the vertical plate, and the pressure roller is located above the material pulling wheel outside the material pulling teeth. The metal strip passes between the pressure roller and the material pulling wheel. The drive motor drives the material pulling wheel to rotate the material pulling teeth. The material pulling teeth are sequentially inserted into each positioning hole of the metal strip to pull the metal strip.
7. The guiding mechanism for metal cutting according to claim 6, characterized in that: A rotating plate is rotatably connected to the upright plate, and the pressure roller is rotatably connected to the rotating plate. A first pull rod is fixedly connected to the rotating plate, and a second pull rod is fixedly connected to the upright plate. The two ends of a tension spring are respectively fixedly connected to the first pull rod and the second pull rod. The tension spring is in a stretched state and causes the pressure roller to have a tendency to rotate toward the pulling roller so that the pressure roller presses against the pulling roller.
8. The guiding mechanism for metal cutting according to claim 7, characterized in that: A fixing plate is horizontally fixedly connected to the upright plate on the side of the pull wheel away from the guide assembly. A guide frame is fixedly connected to the fixing plate. The upper part of the guide frame is bent toward the fixing sleeve and is located below the metal strip.