Double-cutting machine

Abstract

The utility model discloses a double cutting machine. Comprising a turntable unit, the turntable unit comprises a turntable and a plurality of turntable jigs mounted on the turntable, and each turntable jig comprises a clamping unit; the feeding machine comprises a conveying belt and a feeding unit used for pushing materials to the rotary disc jigs. The double-face cutting unit comprises a second driving unit and a first cutting mechanism driven by the second driving unit to move, and the first cutting mechanism comprises a third driving unit and a saw blade driven by the third driving unit; the single-face cutting unit comprises a fourth driving unit and a second cutting mechanism driven by the fourth driving unit to move, and the second cutting mechanism comprises a fifth driving unit and a saw blade driven by the fifth driving unit; and the material rubbing mechanism comprises a push rod used for pushing the materials down. According to the automatic feeding device, the whole process automation of materials from feeding to discharging can be achieved, the machining efficiency is greatly improved, and the percent of pass and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of non-standard equipment technology, and in particular to a double-cutting machine. Background Technology

[0002] Automotive door hinges are auxiliary door accessories that provide support for the door, ensuring its smooth opening and closing.

[0003] Most automotive door hinges are formed by stamping, so after stamping, excess parts need to be removed. Existing cutting methods, such as the high-precision edge-cutting device for processing automotive door hinges disclosed in patent document CN218049849U, cut by using a cylinder to drive the cutter downwards. This method is not only inefficient, but also has low precision in the cutting position, and is prone to generating waste. Therefore, the applicant has filed this application. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by providing a double-cutting machine that automates the entire material feeding and unloading process, significantly improving processing efficiency, pass rate, and product quality.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A double-cutting machine, including

[0007] A turntable unit includes a turntable driven to rotate by a first drive unit and a plurality of turntable fixtures mounted on the turntable, wherein the turntable fixtures include clamping units for clamping materials.

[0008] The feeding machine includes a conveyor belt for transporting materials and a feeding unit for pushing the materials to the turntable fixture.

[0009] A double-sided cutting unit includes a second driving unit and a first cutting mechanism driven by the second driving unit to move longitudinally. The first cutting mechanism includes a third driving unit and two saw blades arranged at left and right intervals driven by the third driving unit.

[0010] At least two single-sided cutting units are arranged on the left and right sides of the workstation, each including a fourth drive unit and a second cutting mechanism driven by the fourth drive unit to perform longitudinal movement. The second cutting mechanism includes a fifth drive unit and a saw blade driven by the fifth drive unit.

[0011] The material feeding mechanism includes a push rod for pushing material off a turntable fixture.

[0012] In the above technical solution, preferably, the clamping unit includes a first clamp fixed on the turntable fixture housing and a second clamp slidably disposed on the turntable fixture housing, wherein the second clamp is controlled to perform longitudinal movement by a drive component disposed on the turntable fixture housing.

[0013] In the above technical solution, preferably, the feeding machine further includes a first support, on which a driving roller and a driven roller are rotatably mounted, the driving roller is connected to a motor, and the conveyor belt is wound around the driving roller and the driven roller.

[0014] In the above technical solution, preferably, the feeding unit includes a first feeding unit and a second feeding unit;

[0015] The first feeding unit includes a sixth driving unit, a ball screw that is drivenly connected to the sixth driving unit, and a first pusher installed on the nut of the ball screw, so as to push the material to the second feeding unit by the lateral movement of the first pusher.

[0016] The second feeding unit includes a seventh drive unit, a second pusher that is driven by the seventh drive unit to move back and forth, and a feeding channel arranged on the travel path of the second pusher, so as to push the material to the turntable fixture through the second pusher.

[0017] In the above technical solution, preferably, the double-sided cutting unit further includes a second bracket, the second driving unit is fixed on the second bracket, the first cutting mechanism further includes a first body slidably connected to the guide column of the second bracket, and the third driving unit is fixed on the first body.

[0018] In the above technical solution, preferably, the first machine body is further provided with a first reducer that is driven and connected to the third drive unit, and the saw blade is driven and connected to the output shaft of the first reducer.

[0019] In the above technical solution, preferably, the single-sided cutting unit further includes a third bracket, the fourth driving unit is fixed on the third bracket, the second cutting mechanism further includes a second body slidably connected to the guide column of the third bracket, and the fifth driving unit is fixed on the second body.

[0020] In the above technical solution, preferably, the second machine body is further provided with a second reducer that is drivenly connected to the fifth drive unit, and the saw blade is drivenly connected to the output shaft of the second reducer.

[0021] In the above technical solution, preferably, the material rolling mechanism further includes a fourth bracket and a cylinder fixed on the fourth bracket, and the push rod is a cylinder push rod.

[0022] In the above technical solution, preferably, the material feeding mechanism further includes a feeding ramp for receiving the material pushed down by the push rod.

[0023] The beneficial effects of this utility model are:

[0024] This invention enables full automation of the material feeding and unloading process, significantly improving processing efficiency, yield, and product quality. Multiple workstations can operate simultaneously, further enhancing processing efficiency. The cutting method employs a top-down motion trajectory, resulting in higher cutting precision. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the present invention.

[0026] Figure 2 This is a schematic diagram of the feeding machine of this utility model.

[0027] Figure 3 This is a partial view of the feeding machine of this utility model.

[0028] Figure 4 This is a schematic diagram of the feeding channel of this utility model.

[0029] Figure 5 This is a schematic diagram of the second pusher component of this utility model.

[0030] Figure 6 This is a schematic diagram of the present invention after the removal of the feeding machine.

[0031] Figure 7 This is a schematic diagram of the turntable fixture of this utility model.

[0032] Figure 8 This is a schematic diagram of the internal structure of the turntable fixture of this utility model.

[0033] Figure 9 This is a schematic diagram showing the cooperation state of the turntable unit and the double-sided cutting unit of this utility model.

[0034] Figure 10 for Figure 9 Enlarged diagram of point D in the middle.

[0035] Figure 11 This is a schematic diagram of the double-sided cutting unit of this utility model.

[0036] Figure 12 This is a schematic diagram showing the positional layout of the two single-sided cutting units of this utility model.

[0037] Figure 13 This is a schematic diagram of the two single-sided cutting units of this utility model from another perspective.

[0038] Figure 14This is a schematic diagram of the material feeding mechanism of this utility model.

[0039] Figure 15 This is a schematic diagram of the material processing state of this utility model. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0041] See Figures 1-15 A double-cutting machine includes a turntable unit 1, a feeding machine 2, a double-sided cutting unit 3, a single-sided cutting unit 4, and a material rolling mechanism 5.

[0042] The turntable unit 1 includes a first drive unit, a turntable 11 driven by the first drive unit to rotate, and several turntable fixtures 6 mounted on the turntable 11. As one option, the first drive unit and the turntable 11 can be hydraulic turntables. Of course, the first drive unit can also be a motor, which drives the turntable 11 to rotate. To make the turntable unit more aesthetically pleasing, a housing 12 can be further provided to hide the first drive unit inside. The turntable 11 is arranged above the housing 12. The housing 12 must be designed to ensure that it does not affect the normal rotation of the turntable.

[0043] As one embodiment, it also includes a base 13, on which the bottom of the turntable unit 1 is mounted. For example, the outer shell 12 or the first drive unit is mounted on the base 13. Furthermore, it can be mounted in the middle position of the base 13 to reserve space on the base 13 for mounting other devices, such as the feeder 2, the double-sided cutting unit 3, the single-sided cutting unit 4, and the material rolling mechanism 5.

[0044] In this embodiment, four turntable fixtures 6 are installed on the upper side of the turntable 11. The four turntable fixtures 6 are evenly distributed so that when the turntable 11 rotates a quarter circumference angle (90 degrees), the turntable fixtures 6 can accurately move to the next process step. As for how to control the turntable to stop after rotating a quarter circumference angle and to restart rotating a quarter circumference angle after the corresponding workstation is completed, the electrical control method can refer to existing designs, such as designing relevant sensors, controllers, etc.

[0045] like Figure 1 As shown, the feeding machine 2 is arranged at station one, the double-sided cutting unit 3 is arranged at station two, the single-sided cutting unit 4 is arranged at station three, the material rolling mechanism 5 is arranged at station four, and the four turntable fixtures 6 correspond to the corresponding stations. After the turntable fixture 6 takes the material from the feeding machine 2 rotates one movement (90 degrees), the turntable fixture 6 stops at station two, and so on.

[0046] For turntable fixture 6, such as Figure 8 As shown, it includes a turntable fixture housing 61 and a clamping unit mounted on the turntable fixture housing 61. Specifically, the clamping unit includes a first chuck 62 fixed to the turntable fixture housing 61 and a second chuck 63 slidably disposed on the turntable fixture housing 61. The second chuck 63 is controlled by a driving member disposed on the turntable fixture housing 61 to control its longitudinal movement. As one option, the driving member can be a pneumatic cylinder, an electric cylinder, a hydraulic cylinder, an oil cylinder, etc. The driving member can be specifically mounted on... Figure 8 The location shown is point A.

[0047] The second chuck 63 can be mounted on the slider, which is slidably connected to the slide rail. Two slide rails can be arranged longitudinally and are parallel to each other. The slide rails are fixed to the inner wall of the turntable fixture housing 61, thereby realizing the sliding connection of the second chuck 63.

[0048] In this embodiment, the clamping surface of the outer end of the first chuck 62 is adapted to the shape of the lower surface of the material, and the clamping surface of the outer end of the second chuck 63 is adapted to the shape of the upper surface of the material, so as to improve the clamping firmness of the material and not damage the material surface.

[0049] In this embodiment, as Figure 7 As shown, the outer side plate 611 of the turntable fixture housing 61 is provided with a through hole 612 for the outer ends of the first chuck 62 and the second chuck 63 to extend to the outside of the turntable fixture housing. The through hole 612 is reserved with space for the second chuck 63 to move longitudinally. Thus, while hiding most of the internal structure of the turntable fixture housing 61, the normal operation of the turntable fixture is not affected.

[0050] For feeder 2, such as Figure 1-5 As shown, it includes a first support 21. A drive roller 221 and a driven roller 222 are respectively installed at the front and rear ends of the upper part of the first support 21. A conveyor belt 223 for transporting materials is wound around the drive roller 221 and the driven roller 222. The drive roller 221 is driven by a motor, which can be fixed to the first support 21, such as on one of its legs, so that the motor drives the drive roller 221 to rotate, thereby driving the conveyor belt 223 to circulate. For controlling how to stop the conveyor belt after it has traveled a certain distance and then continue forward a certain distance after the first row of materials has been pushed, existing designs can be referenced, such as designing relevant sensors and controllers.

[0051] As one implementation method, such as Figure 2 As shown, materials are arranged row by row from front to back, with each row containing multiple materials. After all the materials in front have been pushed, workers can replenish materials from behind conveyor belt 223 when it is stopped, or by using a material tray. Figure 2 All materials shown are placed on conveyor belt 223 at once.

[0052] In this embodiment, the first support 21 is also provided with a feeding unit, which includes a first feeding unit and a second feeding unit. The first feeding unit is used to push the first row of materials to move laterally and push the materials one by one to the second feeding unit. Then, the second feeding unit feeds them into the clamping unit of the turntable fixture, where the clamping unit clamps them and sends them to the next workstation for processing.

[0053] Specifically, the first feeding unit includes a sixth drive unit 22, a ball screw 23 connected to the sixth drive unit 22, and a first pusher 24 mounted on the nut of the ball screw. The sixth drive unit 22 can be a servo motor, which is mounted on the first bracket 21. Specifically, a fixing member can be fixed on the upper part of the first bracket 21, and the servo motor can be fixed on the fixing member. The two ends of the ball screw 23 are rotatably mounted on the first bracket 21. Specifically, a fixing member can be fixed at both ends of the upper part of the first bracket 21, and the two ends of the ball screw 23 are rotatably mounted on the corresponding fixing member. Of course, bearings can be added at the rotatable connection.

[0054] The first pusher 24 is fixed to the nut of the ball screw. Furthermore, two guide posts 251 are fixed to the fixing member. The two ends of each guide post 251 are fixed to a corresponding fixing member. A guide sleeve 252 is slidably mounted on each guide post 251. The first pusher 24 is fixed to the guide sleeve 252. After the sixth drive unit 22 drives the screw to rotate, the screw nut moves laterally, causing the first pusher 24 to move laterally. In the initial stage, the lower end of the first pusher 24 is located on the right side of the first row of materials (within the first row). Figure 2 (At a mid-angle), after the first pusher 24 moves laterally, it can push the first row of materials to the left until the leftmost material enters the second feeding unit. Then, the sixth drive unit 22 stops operating and restarts when the next material needs to be conveyed. For how to control the start and stop of the sixth drive unit, existing designs can be referenced, such as designing relevant sensors and controllers.

[0055] For the response after the first pusher 24 has pushed a row of materials, existing designs can be referenced, such as using a forward and reverse motor or a bidirectional screw structure.

[0056] The second feeding unit includes a seventh drive unit 26, a second pusher 27 driven by the seventh drive unit 26 to move back and forth, and a feeding channel 28 arranged on the travel path of the second pusher 27. The seventh drive unit 26 can be a cylinder, and its cylinder rod is connected to the second pusher 27. The second pusher 27 is slidably mounted on the first bracket 21. For example, the second pusher 27 is fixed on the slider, the slide rail is fixed on the first bracket 21, and the slider is slidably connected to the slide rail.

[0057] like Figure 1 , Figure 2 , Figure 4 As shown, the feeding channel is composed of two spaced baffles 281. Its discharge end corresponds to the clamping unit of the turntable fixture 6, and its feed end is reserved with a notch 282 for the material on the conveyor belt to enter. The notch 282 can be formed by shortening the length of the baffle 281 at that point. That is, the first row of material and the notch 282 are on the same straight line so that after the first row of material is pushed to move laterally, the material can enter the feeding channel 28 through the notch 282. Then, the material is pushed to the clamping unit of the turntable fixture 6 by the second pusher 27. Of course, the feeding channel 28 is located on the movement path of the second pusher 27, and the front end of the second pusher 27 can be adapted to the shape of the material.

[0058] After the material is clamped in the clamping unit of the turntable fixture 6, it is moved to the double-sided cutting unit 3 at station 2 by rotation.

[0059] For double-sided cutting unit 3, such as Figures 9-11 As shown, it includes a second bracket 31, on which a plurality of longitudinally arranged guide columns 32 are mounted. A first body 33 is slidably arranged on the guide columns 32. A third drive unit 34 and a first reducer connected to the third drive unit 34 are arranged on the first body 33. Two saw blades 7 are arranged at intervals from left to right on the output shaft of the first reducer. The two saw blades 7 rotate synchronously.

[0060] In one embodiment, a first reducer is disposed inside a first machine body 33, with its output shaft extending outside the first machine body 33. A saw blade 7 is mounted at the outer end of the output shaft. A side plate 331 of the first machine body 33 extends from one side of the second bracket 31 to its outer end, and a fixing plate 332 is fixed at the outer end of the side plate 331. Figure 11 As shown, the fixing plate 332 is located on the outside of the second bracket 31. Specifically, it can be designed to be parallel to the outer facade of the second bracket 31. The third drive unit 34 is fixed on the fixing plate 332 to improve space utilization.

[0061] In this embodiment, a second drive unit 35 is also fixedly mounted on the top of the second support 31. The output end of the second drive unit 35 is connected to the first machine body 33 to control its longitudinal movement. As one implementation method, the second drive unit 35 is a servo motor, which is connected to the first machine body 33 via a ball screw and can control its up and down movement, thereby controlling the two saw blades 7 to cut from top to bottom. The material pattern after cutting at this station is as follows: Figure 15 The second material shown. After cutting, it retracts upwards and enters a pending state.

[0062] In this embodiment, the first body 33, the third drive unit 34, and the two saw blades 7 can be collectively referred to as the first cutting mechanism.

[0063] After the cutting is completed at station two, the turntable rotates 90 degrees again to transfer the material to station three, namely single-sided cutting unit 4.

[0064] For the single-sided cutting unit 4, there are two sets, arranged on the left and right sides of the workstation, such as... Figure 12 , Figure 13 As shown, the two single-sided cutting units 4 have the same structure. However, the difference between them and the double-sided cutting unit 3 is that the double-sided cutting unit 3 integrates two saw blades 7, while each single-sided cutting unit 4 has a separate saw blade 7. Of course, the saw blades 7 on the two single-sided cutting units 4 can be the same or different in size, depending on the material requirements.

[0065] Specifically, the single-sided cutting unit 4 includes a third support 41, on which a number of longitudinally arranged guide columns 42 are installed. A second body 43 is slidably arranged on the guide columns 42. A fifth drive unit 44 and a second reducer connected to the fifth drive unit 44 are arranged on the second body 43. A saw blade 7 is arranged on the output shaft of the second reducer.

[0066] In one embodiment, the second reducer is disposed inside the second body 43, and its output shaft extends outside the second body 43. The saw blade 7 is mounted at the outer end of the output shaft. A side plate 431 of the second body 43 extends from one side of the third bracket 41 to its outer end, and a fixing plate 432 is fixed at the outer end of the side plate 431. Figure 11 As shown, the second fixing plate 432 is located on the outside of the third bracket 41. Specifically, it can be designed to be parallel to the outer facade of the third bracket 41. The fifth drive unit 44 is fixed on the second fixing plate 432 to improve space utilization.

[0067] In this embodiment, a fourth drive unit 45 is also fixedly mounted on the top of the third support 41. The output end of the fourth drive unit 45 is connected to the second machine body 43 to control its longitudinal movement. As one implementation method, the fourth drive unit 45 is a servo motor, which is connected to the second machine body 43 via a ball screw and can control its up and down movement, thereby controlling the saw blade 7 to cut from top to bottom. The material pattern after cutting at this station is as follows: Figure 15 The third material shown in the diagram is used to cut out excess material by matching the slot cut by the double-sided cutting unit 3. After cutting, it retracts upwards and enters a waiting state.

[0068] In this embodiment, the second body 43, the fifth drive unit 44, and the corresponding saw blade 7 can be collectively referred to as the second cutting mechanism.

[0069] After the cutting is completed at station three, the turntable 11 rotates 90 degrees again to transfer the material to station four, namely the material rolling mechanism 5. Then, the second chuck 63 on the turntable fixture 6 moves upward to release the processed material.

[0070] For the material feeding mechanism 5, such as Figure 14 As shown, it includes a fourth support 51 and a cylinder 52 fixed on the fourth support 51. After the cylinder 52 is activated, the cylinder push rod 53 moves laterally, pushing the material from the turntable fixture 6 onto the discharge ramp 54, and finally falling into the collection box. Of course, the upper end of the discharge ramp 54 is located below the exposed clamp, and its width is sufficient to ensure that the material can be caught after being pushed. A rubber part can be installed on the outer end of the cylinder push rod to avoid damaging the material when pushing it down.

[0071] This cycle continues, and of course, the four rotary fixtures 6 can simultaneously process the corresponding materials at the corresponding workstations.

[0072] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A double cutting machine characterized by: The utility model relates to a double-sided cutting device and a single-sided cutting device for cutting a material, and more particularly to a double-sided cutting device and a single-sided cutting device for cutting a material. The double-sided cutting device comprises a rotating disc unit, an upper feeding machine, a double-sided cutting unit, at least two single-sided cutting units, and a rubbing mechanism. The rotating disc unit comprises a rotating disc driven by a first driving unit to rotate, and a plurality of rotating disc jigs mounted on the rotating disc. The rotating disc jigs comprise a clamping unit for clamping the material. The upper feeding machine comprises a conveying belt for transporting the material, and a feeding unit for pushing the material to the rotating disc jigs. The double-sided cutting unit comprises a second driving unit, and a first cutting mechanism driven by the second driving unit to move longitudinally. The first cutting mechanism comprises a third driving unit, and two saw blades driven by the third driving unit and arranged side by side.

2. A double cutting machine according to claim 1, characterized in that: The at least two single-sided cutting units are arranged on both sides of the work station.

3. A double cutting machine according to claim 1 or 2, characterised in that: Each single-sided cutting unit comprises a fourth driving unit, and a second cutting mechanism driven by the fourth driving unit to move longitudinally.

4. A double cutting machine according to claim 1 or 2, characterised in that: The second cutting mechanism comprises a fifth driving unit, and a saw blade driven by the fifth driving unit. The rubbing mechanism comprises a pushing rod for pushing the material on the rotating disc jigs to fall. The clamping unit comprises a first chuck fixed to the rotating disc jig housing, and a second chuck slidingly arranged on the rotating disc jig housing.

5. A double cutting machine according to claim 1 or 2, characterised in that: The second chuck is controlled by a driving member arranged on the rotating disc jig housing to move longitudinally.

6. A double cutting machine according to claim 5, wherein: The upper feeding machine further comprises a first support.

7. A double cutting machine according to claim 1 or 2, characterised in that: The driving roller is drivingly connected with a motor.

8. A double cutting machine according to claim 7, wherein: The conveying belt is arranged around the driving roller and the driven roller.

9. A double cutting machine as claimed in claim 1, wherein: The feeding unit comprises a first feeding unit and a second feeding unit.

10. A double cutting machine according to claim 1 or 9, characterized in that: The first feeding unit comprises a sixth driving unit, a ball screw drivingly connected with the sixth driving unit, and a first pushing member mounted on the nut of the ball screw. The first pushing member is used to push the material to the second feeding unit by moving laterally. The second feeding unit comprises a seventh driving unit, a second pushing member driven by the seventh driving unit to move forward and backward, and a feeding channel arranged on the travel path of the second pushing member. The double-sided cutting unit further comprises a second support. The second driving unit is fixed to the second support. The first cutting mechanism further comprises a first body slidingly connected to a guide column of the second support. The third driving unit is fixed to the first body. The first body is further provided with a first speed reducer drivingly connected with the third driving unit. The saw blade is drivingly connected with the output shaft of the first speed reducer. The single-sided cutting unit further comprises a third support. The fourth driving unit is fixed to the third support. The second cutting mechanism further comprises a second body slidingly connected to a guide column of the third support. The fifth driving unit is fixed to the second body. The second body is further provided with a second speed reducer drivingly connected with the fifth driving unit. The saw blade is drivingly connected with the output shaft of the second speed reducer. The rubbing mechanism further comprises a fourth support and a cylinder fixed to the fourth support. The pushing rod is a cylinder pushing rod. The rubbing mechanism further comprises a discharging slope for receiving the material pushed by the pushing rod.

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