Multi-specification automatic stretching machine

Abstract

The utility model relates to a tensile technical field discloses a kind of multi-specification automatic stretching machine, including side plate, the bottom of side plate is fixedly connected with bottom plate, the top surface of bottom plate is fixedly connected with stand, the top outer side of stand is fixedly connected with first support plate, the bottom of first support plate is fixedly connected with first cylinder, the bottom of first cylinder is fixedly connected with third fixed plate, the middle outer side of first cylinder is slidably connected with third clamping plate, the bottom of first support plate is fixedly connected with second electric pushrod, the output end of second electric pushrod is fixedly connected on the top of third clamping plate, the side of first support plate is fixedly connected with optical axis. In the utility model, the stretching machine of traditional mostly adopts single specification stretching mode, due to single specification, when the workpiece of different specifications is processed, the distance of clamping workpiece cannot be quickly adjusted, thereby causing the problem of low efficiency and insufficient precision when stretching multi-specification workpiece.

Description

Technical Field

[0001] This utility model relates to the field of stretching technology, and in particular to a multi-specification automatic stretching machine. Background Technology

[0002] In materials testing, tensile testing machines are used to evaluate the strength, ductility and other properties of materials such as metals, plastics and rubber. By applying tensile force, parameters such as tensile strength and yield point are determined, providing data support for product quality control and research and development.

[0003] Traditional stretching machines mostly use a single-specification stretching method. Due to the single specification, when processing workpieces of different specifications, the clamping distance of the workpiece cannot be quickly adjusted, resulting in low efficiency and insufficient accuracy when stretching workpieces of multiple specifications. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-specification automatic stretching machine, which aims to improve the problem that most traditional stretching machines adopt a single-specification stretching method. Due to the single specification, when processing workpieces of different specifications, the distance of clamping the workpiece cannot be quickly adjusted, resulting in low efficiency and insufficient accuracy when stretching workpieces of multiple specifications.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-specification automatic stretching machine, comprising a side plate, a base plate fixedly connected to the bottom of the side plate, a column fixedly connected to the top surface of the base plate, a first support plate fixedly connected to the outer side of the top of the column, a first cylinder fixedly connected to the bottom of the first support plate, a third fixing plate fixedly connected to the bottom of the first cylinder, a third clamping plate slidably connected to the outer side of the middle of the first cylinder, a second electric push rod fixedly connected to the bottom of the first support plate, the output end of the second electric push rod fixedly connected to the top surface of the third clamping plate, an optical axis fixedly connected to the side of the first support plate, a clamping mechanism slidably connected to the outer side of the optical axis, a feeding mechanism provided on one side of the third fixing plate, a threaded rod provided in the middle of the first support plate, a weighing sensor fixedly connected to the inner wall of the side plate, and a power mechanism provided on one side of the weighing sensor.

[0006] By adopting the above technical solution, the motor generates rotational force to drive the second gear to rotate, and the second gear drives the first gear to rotate. The first gear, in conjunction with the threaded rod, can convert the rotational force into a moving force, which in turn drives the clamping mechanism to move. Thus, the clamping mechanism can be used to adapt to workpieces of different specifications, thereby solving the problem that traditional stretching machines mostly use a single specification stretching method, which cannot flexibly adapt to different specifications of workpieces, resulting in low efficiency and insufficient accuracy when stretching multiple specifications of workpieces.

[0007] Preferably, the feeding mechanism includes a second baffle, which is fixedly connected to the side of the third fixed plate away from the column. A conveyor belt is provided on the side of the second baffle away from the third fixed plate. A rotating wheel is provided inside the conveyor belt. A second motor is fixedly connected to the side wall of the second baffle. A transmission rod is fixedly connected to the middle of the rotating wheel. The transmission rod is rotatably connected to the output end of the second motor.

[0008] Preferably, the clamping mechanism includes a second support plate, which is slidably connected to the outer wall of the optical axis. A slot is provided in the middle of the second support plate. A first electric push rod is fixedly connected to the bottom of the second support plate. A first clamping plate is fixedly connected to the output end of the first electric push rod. A second cylinder is fixedly connected to the bottom of the second support plate. A second clamping plate is fixedly connected to the bottom of the second cylinder. The first clamping plate is slidably connected to the outer wall of the second cylinder.

[0009] Preferably, the power mechanism includes a first motor, a second fixing plate is fixedly connected to the bottom of the first motor, the second fixing plate is fixedly connected to the side of the weighing sensor away from the side plate, a second gear is rotatably provided at the output end of the first motor, a round tube is fixedly connected to the middle of the second fixing plate, and a first gear is rotatably connected to the end of the round tube away from the second fixing plate, and the tooth ends of the first gear and the tooth ends of the second gear mesh with each other.

[0010] Preferably, the second fixing plate is fixedly connected to the first fixing plate on the side away from the weighing sensor, and the first fixing plate is fixedly connected to the first baffle on the side away from the weighing sensor, and the first baffle has a hole in the middle.

[0011] Preferably, a fixing ring is fixedly connected to one end of the threaded rod near the second support plate, and the fixing ring is slidably connected inside the slot.

[0012] Preferably, the first gear has a threaded groove in the middle, and the threaded rod is threaded into the inside of the first gear.

[0013] Preferably, the top outer side of the side plate has a hole, and the threaded rod passes through the hole and penetrates the outer wall of the side plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the motor generates rotational force to drive the second gear to rotate, and the second gear drives the first gear to rotate. The first gear, in conjunction with the threaded rod, can convert the rotational force into a moving force, which in turn drives the clamping mechanism to move. Thus, the clamping mechanism can be used to adapt to workpieces of different specifications, thereby solving the problem that traditional stretching machines mostly use a single specification stretching method. Due to the single specification, the clamping distance cannot be quickly adjusted when processing workpieces of different specifications, resulting in low efficiency and insufficient accuracy when stretching workpieces of multiple specifications.

[0016] 2. In this utility model, the conveyor belt and the second motor work together to automatically transport the workpiece to the stretching area. The first electric push rod drives the first clamping plate to move towards the second clamping plate. The first clamping plate and the second clamping plate work together to achieve automatic clamping, thereby realizing the automation of feeding, reducing the time and workload of manual feeding, and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a multi-specification automatic stretching machine proposed in this utility model;

[0018] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 3 This is a three-dimensional structural diagram of the threaded rod in a multi-specification automatic stretching machine proposed in this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the first gear in a multi-specification automatic stretching machine proposed in this utility model.

[0021] Figure 5 This is a three-dimensional structural diagram of the conveyor belt in a multi-specification automatic stretching machine proposed in this utility model.

[0022] Legend:

[0023] 1. Side plate; 2. Base plate; 3. Column; 4. First fixing plate; 5. Second fixing plate; 6. Threaded rod; 7. First motor; 8. Weighing sensor; 9. First baffle; 10. Round tube; 11. First gear; 12. Second gear; 13. First support plate; 14. Second support plate; 15. Optical axis; 16. Second motor; 17. Slot; 18. First electric push rod; 19. First clamping plate; 20. Second clamping plate; 21. Second baffle; 22. First cylinder; 23. Third fixing plate; 24. Second electric push rod; 25. Third clamping plate; 26. Conveyor belt; 27. Fixing ring; 28. Second cylinder. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-3 This utility model provides an embodiment of a multi-specification automatic stretching machine, including a side plate 1, a base plate 2 fixedly connected to the bottom of the side plate 1, a column 3 fixedly connected to the top surface of the base plate 2, a first support plate 13 fixedly connected to the outer side of the top of the column 3, a first cylinder 22 fixedly connected to the bottom of the first support plate 13, a third fixing plate 23 fixedly connected to the bottom of the first cylinder 22, a third clamping plate 25 slidably connected to the outer side of the middle part of the first cylinder 22, a second electric push rod 24 fixedly connected to the bottom of the first support plate 13, the output end of the second electric push rod 24 fixedly connected to the top surface of the third clamping plate 25, an optical axis 15 fixedly connected to the side of the first support plate 13, a clamping mechanism slidably connected to the outer side of the optical axis 15, a feeding mechanism provided on one side of the third fixing plate 23, a threaded rod 6 provided in the middle of the first support plate 13, a weighing sensor 8 fixedly connected to the inner wall of the side plate 1, and a power mechanism provided on one side of the weighing sensor 8.

[0026] Specifically, the side plate 1 serves to fix the weighing sensor 8; the base plate 2 serves to support the platform; the column 3 serves to support the first support plate 13; the first cylinder 22 serves to fix and connect the third fixing plate 23, and the outer wall of the first cylinder 22 allows the third clamping plate 25 to slide smoothly; the second electric push rod 24 provides thrust, causing the third clamping plate 25 at the output end to slide towards the third fixing plate 23, thus clamping the workpiece; the feeding mechanism conveys the workpiece to the clamping area, achieving automatic feeding; the clamping mechanism automatically clamps the workpiece; the optical axis 15 allows the clamping mechanism to move axially along the optical axis 15; the threaded rod 6, in conjunction with the power mechanism, converts rotational force into linear motion, thereby driving the clamping mechanism to slide on the optical axis 15, achieving the stretching operation of the workpiece; and so on. The weighing sensor 8 can monitor the magnitude of the force during the stretching process. By detecting the force, workers can easily adjust the parameters. If the tension is too small, the workpiece cannot be fully stretched, so the tension needs to be increased to ensure that the workpiece is fully stretched. The power mechanism provides rotational power. The rotational power is transmitted to the second gear 12 through the motor output, which drives the first gear 11 to rotate. The first gear 11 and the threaded rod 6 cooperate to convert the rotational power of the first gear 11 into the thrust of the threaded rod 6, which drives the second support plate 14 to move synchronously. This causes the entire clamping mechanism to slide on the optical shaft 15, which allows for flexible adjustment of the clamping mechanism's position. This allows it to be adjusted to different clamping positions according to different workpiece specifications, thus solving the problem that traditional stretching machines mostly use a single-specification stretching method, which cannot flexibly adapt to different workpiece specifications, resulting in low efficiency and insufficient accuracy when stretching multiple specifications of workpieces.

[0027] Reference Figure 5 The feeding mechanism includes a second baffle 21, which is fixedly connected to the side of the third fixed plate 23 away from the column 3. A conveyor belt 26 is provided on the side of the second baffle 21 away from the third fixed plate 23. A rotating wheel is provided inside the conveyor belt 26. A second motor 16 is fixedly connected to the side wall of the second baffle 21. A transmission rod is fixedly connected to the middle of the rotating wheel. The transmission rod is rotatably connected to the output end of the second motor 16.

[0028] Specifically, by having the top of the second baffle 21 flush with the top of the third fixed plate 23, the workpiece can smoothly reach the top of the third fixed plate 23, while preventing the workpiece from falling into the conveyor belt 26 and causing safety hazards; the rotating wheel can transmit the rotational power of the second motor 16; the cooperation between the conveyor belt 26 and the second motor 16 can automatically transport the workpiece, and can transport workpieces of different specifications to the top of the third fixed plate 23.

[0029] Reference Figure 1 The clamping mechanism includes a second support plate 14, which is slidably connected to the outer wall of the optical axis 15. A slot 17 is provided in the middle of the second support plate 14. A first electric push rod 18 is fixedly connected to the bottom of the second support plate 14. A first clamping plate 19 is fixedly connected to the output end of the first electric push rod 18. A second cylinder 28 is fixedly connected to the bottom of the second support plate 14. A second clamping plate 20 is fixedly connected to the bottom of the second cylinder 28. The first clamping plate 19 is slidably connected to the outer wall of the second cylinder 28.

[0030] Specifically, the second support plate 14 serves to fix the first electric actuator 18, and together with the power mechanism and threaded rod 6, it drives the second support plate 14 to move. The slot 17 engages one end of the threaded rod 6. The first electric actuator 18 generates thrust, and the second cylinder 28 causes the first clamping plate 19 to move along the axial direction of the second cylinder 28. The thrust from the output end of the first electric actuator 18 moves the first clamping plate 19 toward the second clamping plate 20, clamping the other end of the workpiece. When the output end of the first electric actuator 18 shortens, moving the first clamping plate 19 away from the second clamping plate 20, the workpiece can be released.

[0031] Reference Figure 4 The power mechanism includes a second fixed plate 5, which is fixedly connected to the input end of the weighing sensor 8. A first motor 7 is fixedly connected to one side of the second fixed plate 5. A second gear 12 is rotatably mounted on the output end of the first motor 7. A round tube 10 is fixedly connected to the middle of the second fixed plate 5. A first gear 11 is rotatably connected to the end of the round tube 10 away from the second fixed plate 5. The tooth ends of the first gear 11 mesh with the tooth ends of the second gear 12.

[0032] Specifically, the second fixing plate 5 supports the first motor 7 and the circular tube 10. A weighing sensor 8 is mounted on one side of the second fixing plate 5, providing pressure in its direction. The first motor 7 generates rotational force, which is transmitted to the first gear 11 via the second gear 12 at the output end, causing the first gear 11 to rotate. The circular tube 10 supports the first gear 11, ensuring it remains horizontal with the second gear 12. The rotation of the first gear 11 causes the internal thread in its center to engage with the screw thread. The external thread engagement of the threaded rod 6 enables axial movement of the threaded rod 6. The engagement of the first gear 11 with the threaded rod 6 converts rotational force into axial motion. The motor outputs rotational force, which is then transmitted to the first gear 11 via the second gear 12. The engagement of the first gear 11 with the threaded rod 6 enables the threaded rod 6 to move the second support plate 14 away from the first support plate 13, thereby performing stretching work. Reversing the motor allows the threaded rod 6 to move the second support plate 14 in the opposite direction, achieving the purpose of adjusting the clamping position required for workpieces of different specifications.

[0033] Reference Figure 1 The first fixing plate 4 is fixedly connected to the side of the second fixing plate 5 away from the weighing sensor 8. The first baffle 9 is fixedly connected to the side of the first fixing plate 4 away from the weighing sensor 8. A hole is opened in the middle of the first baffle 9, and the threaded rod 6 is located inside the hole.

[0034] Specifically, the second fixing plate 5 can apply the reaction force to the input end of the load cell 8 during the stretching operation, so that the tensile force on the workpiece can be obtained by the detection of the load cell 8; the first fixing plate 4 can fix the first baffle 9; the first baffle 9 can prevent the axial movement of the first gear 11 when the motor reverses; and the hole can allow the threaded rod 6 to pass through the interior of the first baffle 9.

[0035] Reference Figure 3 A fixing ring 27 is fixedly connected to one end of the threaded rod 6 near the second support plate 14, and the fixing ring 27 is slidably connected inside the slot 17.

[0036] Specifically, the groove 17 opened in the second support plate 14 cooperates with the fixing ring 27, allowing one end of the threaded rod 6 to rotate freely inside the groove 17. Through mutual engagement, the second support plate 14 and the threaded rod 6 can move synchronously.

[0037] Reference Figure 3 The first gear 11 has a threaded groove in the middle, and the threaded rod 6 is threaded into the inside of the first gear 11.

[0038] Specifically, the threaded groove of the first gear 11 meshes with the thread of the threaded rod 6, which can convert rotational force into kinetic force.

[0039] Reference Figure 1 A hole is provided on the top outer side of the side plate 1, and the threaded rod 6 passes through the hole and penetrates the outer wall of the side plate 1.

[0040] Specifically, by opening holes in the side plate 1, the up-and-down movement of the threaded rod 6 can be restricted, ensuring that the threaded rod 6 will not deform during the stretching operation.

[0041] Working principle: The second motor 16 drives the conveyor belt 26 to rotate and transport the workpiece to the working area of ​​the stretching machine; the second electric push rod 24 works to generate thrust, pushing the third clamping plate 25 close to the third fixed plate 23 to clamp one side of the workpiece; the first motor 7 works to output rotational power, driving the second gear 12 to rotate, and the second gear 12 drives the first gear 11 to rotate. The threaded groove in the middle of the first gear 11 is threadedly connected to the threaded rod 6, converting the rotational motion into the linear motion of the threaded rod 6. The threaded rod 6 pushes the second support plate 14 to slide on the outer wall of the optical axis 15, thereby adjusting the stretching position for different workpieces; when the second support plate 14 moves to the working position, the first motor 7 stops working, and the first electric push rod 18 at the bottom of the second support plate 14 works to generate thrust, pushing the first clamping plate 19 close to the second clamping plate 20 to clamp the other side of the workpiece. After the workpiece is clamped at both ends, the first motor 7 continues to rotate, and the clamped workpiece is stretched under the drive of the threaded rod 6; during the stretching process, the weighing sensor 8 monitors the magnitude of the stretching force in real time.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-specification automatic stretching machine, comprising a side plate (1), characterized in that: A base plate (2) is fixedly connected to the bottom of the side plate (1), a column (3) is fixedly connected to the top surface of the base plate (2), a first support plate (13) is fixedly connected to the outer side of the top of the column (3), a first cylinder (22) is fixedly connected to the bottom of the first support plate (13), a third fixing plate (23) is fixedly connected to the bottom of the first cylinder (22), a third clamping plate (25) is slidably connected to the outer side of the middle part of the first cylinder (22), and a second electric... The output end of the push rod (24) is fixedly connected to the top surface of the third clamping plate (25). The side of the first support plate (13) is fixedly connected to the optical axis (15). The outer side of the optical axis (15) is slidably connected to the clamping mechanism. The third fixed plate (23) is provided with a feeding mechanism on one side. The first support plate (13) is provided with a threaded rod (6) in the middle. The inner wall of the side plate (1) is fixedly connected to the weighing sensor (8). The weighing sensor (8) is provided with a power mechanism on one side.

2. The multi-specification automatic stretching machine according to claim 1, characterized in that: The feeding mechanism includes a second baffle (21), which is fixedly connected to the side of the third fixed plate (23) away from the column (3). A conveyor belt (26) is provided on the side of the second baffle (21) away from the third fixed plate (23). A rotating wheel is provided inside the conveyor belt (26). A second motor (16) is fixedly connected to the side wall of the second baffle (21). A transmission rod is fixedly connected to the middle of the rotating wheel. The transmission rod is rotatably connected to the output end of the second motor (16).

3. The multi-specification automatic stretching machine according to claim 1, characterized in that: The clamping mechanism includes a second support plate (14), which is slidably connected to the outer wall of the optical axis (15). A slot (17) is provided in the middle of the second support plate (14). A first electric push rod (18) is fixedly connected to the bottom of the second support plate (14). A first clamping plate (19) is fixedly connected to the output end of the first electric push rod (18). A second cylinder (28) is fixedly connected to the bottom of the second support plate (14). A second clamping plate (20) is fixedly connected to the bottom of the second cylinder (28). The first clamping plate (19) is slidably connected to the outer wall of the second cylinder (28).

4. The multi-specification automatic stretching machine according to claim 1, characterized in that: The power mechanism includes a first motor (7), a second fixing plate (5) is fixedly connected to the bottom of the first motor (7), the second fixing plate (5) is fixedly connected to the side of the weighing sensor (8) away from the side plate (1), a second gear (12) is rotatably provided at the output end of the first motor (7), a round tube (10) is fixedly connected to the middle of the second fixing plate (5), a first gear (11) is rotatably connected to the end of the round tube (10) away from the second fixing plate (5), and the tooth end of the first gear (11) meshes with the tooth end of the second gear (12).

5. The multi-specification automatic stretching machine according to claim 4, characterized in that: The second fixing plate (5) is fixedly connected to the first fixing plate (4) on the side away from the weighing sensor (8), and the first fixing plate (4) is fixedly connected to the first baffle (9) on the side away from the weighing sensor (8). The first baffle (9) has a hole in the middle, and the threaded rod (6) is located inside the hole.

6. The multi-specification automatic stretching machine according to claim 1, characterized in that: The threaded rod (6) is fixedly connected to a fixing ring (27) at one end near the second support plate (14), and the fixing ring (27) is slidably connected inside the slot (17).

7. The multi-specification automatic stretching machine according to claim 4, characterized in that: The first gear (11) has a threaded groove in the middle, and the threaded rod (6) is threadedly connected to the inside of the first gear (11).

8. The multi-specification automatic stretching machine according to claim 1, characterized in that: The side plate (1) has a hole on its top outer side, and the threaded rod (6) passes through the hole and penetrates the outer wall of the side plate (1).

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