Three-stage amplification semi-automatic force-enhancing mechanism

Abstract

The three-stage amplification semi-automatic force-increasing mechanism includes an eccentric wheel, a lever, a support plate, a connecting rod, a high-strength pressure block, and a manual rod. The lever is a triangle, and the two levers are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever is hinged to the connecting rod, and the third end of the lever is hinged to the high-strength pressure block. The other end of the connecting rod is hinged to the support plate. Slideways are arranged on both sides of the support plate. The eccentric wheel is at the bottom of the support plate and connected to the top of the support plate. The eccentric wheel can rotate around the installation axis through the manual rod drive. The present invention increases the force applied to the lever by three levels to 166 times through the lever structure, eccentric wheel design, and connecting rod transmission, and obviously obtains the force-increasing effect, can realize the two functions of expansion and compression, and has strong usability; it is simple to operate and use, and can be independently operated by one person, and has high work efficiency. The mechanism is used to remove flash and burrs in the process of rail bottom plate processing; and is used for shaping before finished product packaging.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical production, in particular to a three-level amplification semi-automatic force-increasing mechanism in metallurgical stamping production. Background Art

[0002] In metallurgical stamping production, it may be necessary to partially expand or compress the workpiece. In the past, in order to achieve this requirement, relatively complex large tools or presses were mostly used. The equipment was complex, the process was cumbersome, the work efficiency was low, and there were many positions and personnel. Summary of the invention

[0003] The purpose of the present invention is to provide a three-stage amplification semi-automatic force-enhancing mechanism, which can increase the force applied manually to the handle by three stages to 166 times through a lever structure, an eccentric wheel design, and a connecting rod transmission, thereby obviously achieving a force-enhancing effect, and can realize both expansion and compression functions. The mechanism is easy to use, simple to operate, and can be operated independently by one person, with high work efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The three-stage amplification semi-automatic force-enhancing mechanism comprises an eccentric wheel, a lever, a support plate, a connecting rod, a high-strength pressure block and a manual lever. The lever is a triangle. The two levers are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever is hinged to the connecting rod, and the third end of the lever is hinged to the high-strength pressure block. The other end of the connecting rod is hinged to the support plate. Slideways are arranged on both sides of the support plate. The eccentric wheel is at the bottom of the support plate and connected to the top of the support plate. The eccentric wheel can rotate around the mounting axis by being driven by the manual lever.

[0006] A counterweight is arranged on the upper end of the support plate.

[0007] It also includes a pushing mechanism and a slide, and the workpiece is placed on the upper end of the slide. The pushing mechanism includes a support lever, a spring I, and a support. The support is hinged to the fulcrum of the support lever. One force point of the support lever pushes the workpiece, and the other force point of the support lever is connected to the spring. The high-strength pressure block is placed on the side of the workpiece to be processed.

[0008] The method of using the three-stage amplification semi-automatic force-enhancing mechanism specifically includes:

[0009] Move the manual rod to make the raised side of the eccentric wheel lift up the support plate, and the support plate drives the connecting rod and the lever to move. The connecting end of the lever and the connecting rod shrinks inward, and the connecting end of the lever and the high-strength pressure block expands outward. The high-strength pressure block is placed in the groove structure that needs to be expanded for processing the workpiece. The high-strength pressure block strongly expands the workpiece under the action of the expansion force of the lever.

[0010] The three-stage amplification semi-automatic force-enhancing mechanism comprises an eccentric wheel, a lever, a support plate, a connecting rod, a high-strength pressure block, a manual rod, and a spring II. The lever is a triangle, and the two levers are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever is hinged to the connecting rod, and the third end of the lever is hinged to the high-strength pressure block. The other end of the connecting rod is hinged to the support plate, and slideways are arranged on both sides of the support plate. The eccentric wheel is above the support plate and connected to the top of the support plate. The eccentric wheel can rotate around the mounting axis by being driven by the manual rod, and a spring II is arranged at the bottom of the support plate.

[0011] It also includes a pushing mechanism and a slide, and the workpiece is placed on the upper end of the slide. The pushing mechanism includes a support lever, a spring I, and a support. The support is hinged to the fulcrum of the support lever. One force point of the support lever pushes the workpiece, and the other force point of the support lever is connected to the spring. The high-strength pressure block is placed on the side of the workpiece to be processed.

[0012] The method of using the three-stage amplification semi-automatic force-enhancing mechanism specifically includes:

[0013] Move the manual lever to make the raised side of the eccentric wheel press down the support plate, and the support plate drives the connecting rod and the lever to move. The connecting end of the lever and the connecting rod extends outward, and the connecting end of the lever and the high-strength pressure block is compressed inward. The high-strength pressure block is clamped on the outside of the convex structure that needs to be compressed on the workpiece, and the high-strength pressure block strongly compresses the workpiece under the action of the compression force of the lever.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention is a three-stage (first-stage manual lever and eccentric wheel; second-stage eccentric wheel; third-stage lever and high-strength pressure block) amplification semi-automatic force-increasing mechanism. Through the lever structure, eccentric wheel design and connecting rod transmission, the force manually acting on the lever handle is amplified by three stages. By adjusting the length of the manual lever, the radius and eccentricity of the eccentric wheel, the length of the lever and the distance between the lever pin and the pressure block force point, the total magnification of the three stages can reach 166 times, and the force-increasing effect is obviously obtained. The two functions of expansion and compression can be realized, and the mechanism has strong usability; the operation and use are simple, and one person can realize independent operation, and the work efficiency is high.

[0016] The mechanism can also be used to remove flash and burrs during the processing of rail bottom plates (the process requires that the burrs cannot be higher than 1mm). There will be flash and burrs on the bottom plate and top corners of the rail workpiece, which are very inconvenient to clean manually. When the mechanism of the present invention adopts the expansion mode, the high-strength pressure block generates a force that is amplified by three levels outward, and the outer side of the pressure block moves along the surface of the workpiece in a scraper-like manner, which can completely clean the burrs on the bottom plate and expand the right-angled edges of the workpiece to clean the flash; it is used for shaping before the finished product is packaged; it can also be used in other situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-stage amplification semi-automatic force-increasing mechanism of the present invention (Example 1).

[0018] Figure 2 It is a schematic diagram of the three-stage amplification semi-automatic force-increasing mechanism of the present invention (Example 2).

[0019] Figure 3 It is an enlarged view of the ejector mechanism.

[0020] In the figure: 1. counterweight, 2. support plate, 3. connecting rod, 4. eccentric wheel, 5. lever, 6. slideway, 7. rail pad, 8. high-strength pressure block, 9. lifting mechanism, 10. manual lever, 11. spring I, 12. spring II, 13. support, 14. support lever. DETAILED DESCRIPTION

[0021] The present invention is described in detail below, but the implementation scope of the present invention is not limited to the following embodiments.

[0022] Embodiment 1:

[0023] like Figure 1 As shown, a three-stage amplification semi-automatic force-enhancing mechanism includes an eccentric wheel 4, a lever 5, a support plate 2, a connecting rod 3, a high-strength pressure block 8, and a manual rod 10. The lever 5 is a triangle, and the two levers 5 are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever 5 is hinged to the connecting rod 3, and the third end of the lever 5 is hinged to the high-strength pressure block 8. The other end of the connecting rod 3 is hinged to the support plate 2. Slideways 6 are arranged on both sides of the support plate 2. The eccentric wheel 4 is at the bottom of the support plate 2 and is connected to the top of the support plate 2. The eccentric wheel 4 is driven by the manual rod 10 to rotate around the mounting axis.

[0024] A counterweight 1 is provided at the upper end of the support plate 2 .

[0025] It also includes a material ejection mechanism 9 and a slideway 6, and the workpiece is placed on the upper end of the slideway 6. Figure 3 As shown, the material pushing mechanism 9 includes a support lever 14, a spring Ⅰ11, and a support 13. The support 13 is hinged to the fulcrum of the support lever 14. One force point of the support lever 14 pushes the workpiece, and the other force point of the support lever 14 is connected to the spring Ⅰ11. The high-strength pressure block 8 is placed in a groove structure that needs to expand when processing the workpiece.

[0026] The working principle of the present invention is:

[0027] Press the manual lever 10 downward by hand, and the manual lever 10 moves downward in the direction of the arrow. Since the manual lever 10 is fixedly connected to the eccentric wheel 4, the support plate 2 is forced to move upward. Due to the connecting action of the connecting rod 3, the upper end of the lever 5 moves inward, while the lower end moves outward. When the movement is blocked, a tension force is generated. When the above actions are completed and the hand leaves the manual lever 10, due to the action of the counterweight 1, sufficient downward pressure is generated to force the mechanism to automatically return to the initial position.

[0028] The method of using the three-stage amplification semi-automatic force-enhancing mechanism specifically includes:

[0029] In this embodiment, the workpiece is a rail pad 7. The workpiece rail pad 7 is placed on the slide 6 and pushed to the processing position. One force point of the support lever 14 of the lifting mechanism 9 generates thrust due to the spring I 11, and the other force point of the support lever 14 is pressed against the lower part of the rail pad 7, so that the rail pad 7 always has an upward thrust to ensure that the upper surface is tightly fitted with the lower part of the high-strength pressing block 8 without a gap.

[0030] Move the manual rod 10 so that the raised side of the eccentric wheel 4 lifts up the support plate 2, and the support plate 2 drives the connecting rod 3 and the lever 5 to move. The connecting end of the lever 5 and the connecting rod 3 shrinks inward, and the connecting end of the lever 5 and the high-strength pressure block 8 expands outward. The high-strength pressure block 8 is placed in the groove structure that needs to be expanded for the workpiece to be processed. The high-strength pressure block 8 strongly expands the workpiece under the action of the expansion force of the lever 5.

[0031] Embodiment 2:

[0032] like Figure 2 As shown, the three-stage amplification semi-automatic force-enhancing mechanism includes an eccentric wheel 4, a lever 5, a support plate 2, a connecting rod 3, a high-strength pressure block 8, a manual rod 10, and a spring II 12. The lever 5 is a triangle, and the two levers 5 are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever 5 is hinged to the connecting rod 3, and the third end of the lever 5 is hinged to the high-strength pressure block 8. The other end of the connecting rod 3 is hinged to the support plate 2. Slideways 6 are arranged on both sides of the support plate 2. The eccentric wheel 4 is above the support plate 2 and is connected to the top of the support plate 2. The eccentric wheel 4 can rotate around the mounting axis driven by the manual rod 10, and a spring II 12 is arranged at the bottom of the support plate 2.

[0033] It also includes a material ejection mechanism 9 and a slideway 6, and the workpiece is placed on the upper end of the slideway 6. Figure 3 As shown, the ejection mechanism 9 includes a support lever 14, a spring Ⅰ11, and a support 13. The support 13 is hinged to the fulcrum of the support lever 14. One force point of the support lever 14 pushes against the workpiece, and the other force point of the support lever 14 is connected to the spring Ⅰ11. The high-strength pressure block 8 is clamped on the outside of the convex structure that needs to be compressed on the workpiece.

[0034] The method of using the three-stage amplification semi-automatic force-enhancing mechanism specifically includes:

[0035] The workpiece is placed on the slide 6 and pushed to the processing position. The support lever 14 of the lifting mechanism 9 is pressed against the lower part of the workpiece, so that the workpiece always has an upward thrust to ensure that the upper surface is tightly fitted with the lower part of the high-strength pressing block 8 without gap.

[0036] Move the manual rod 10 so that the raised side of the eccentric wheel 4 presses down the support plate 2, and the support plate 2 drives the connecting rod 3 and the lever 5 to move. The connecting end of the lever 5 and the connecting rod 3 extends outward, and the connecting end of the lever 5 and the high-strength pressure block 8 is compressed inward. The high-strength pressure block 8 is clamped on the outside of the convex structure that needs to be compressed on the workpiece. The high-strength pressure block 8 strongly compresses the workpiece under the action of the compression force of the lever 5.

[0037] Lift the manual lever 10, and the support plate 2 will be reset under the elastic force of the spring II 12.

Claims

1. Three-stage amplification semi-automatic force-increasing mechanism, characterized in that: It includes an eccentric wheel, a lever, a support plate, a connecting rod, a high-strength pressing block, and a manual lever. The lever is a triangle. The two levers are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever is hinged to the connecting rod. The third end of the lever is hinged to the high-strength pressing block. The other end of the connecting rod is hinged to the support plate. Slideways are arranged on both sides of the support plate. The eccentric wheel is at the bottom of the support plate and connected to the top of the support plate. The eccentric wheel can rotate around the installation axis by being driven by the manual lever. It also includes a pushing mechanism and a slide, and the workpiece is placed on the upper end of the slide. The pushing mechanism includes a support lever, a spring I, and a support. The support is hinged to the fulcrum of the support lever, one force point of the support lever pushes the workpiece, and the other force point of the support lever is connected to the spring I. The high-strength pressure block is placed on the side of the workpiece to be processed.

2. The three-stage amplification semi-automatic force-increasing mechanism according to claim 1 is characterized in that: A counterweight is arranged on the upper end of the support plate.

3. The method for using the three-stage amplification semi-automatic force-increasing mechanism according to any one of claims 1 to 2, characterized in that: Specifically include: Move the manual rod to make the raised side of the eccentric wheel lift up the support plate, and the support plate drives the connecting rod and the lever to move. The connecting end of the lever and the connecting rod shrinks inward, and the connecting end of the lever and the high-strength pressure block expands outward. The high-strength pressure block is placed in the groove structure that needs to be expanded for processing the workpiece. The high-strength pressure block strongly expands the workpiece under the action of the expansion force of the lever.

4. Three-stage amplification semi-automatic force-increasing mechanism, characterized in that: It includes an eccentric wheel, a lever, a support plate, a connecting rod, a high-strength pressure block, a manual lever, and a spring II. The lever is a triangle. The two levers are symmetrically arranged and hinged to each other at one end of the triangle. The second end of the lever is hinged to the connecting rod, and the third end of the lever is hinged to the high-strength pressure block. The other end of the connecting rod is hinged to the support plate. Slideways are arranged on both sides of the support plate. The eccentric wheel is above the support plate and connected to the top of the support plate. The eccentric wheel can rotate around the installation axis by being driven by the manual lever. A spring II is arranged at the bottom of the support plate. It also includes a pushing mechanism and a slide, and the workpiece is placed on the upper end of the slide. The pushing mechanism includes a support lever, a spring I, and a support. The support is hinged to the fulcrum of the support lever, one force point of the support lever pushes the workpiece, and the other force point of the support lever is connected to the spring I. The high-strength pressure block is placed on the side of the workpiece to be processed.

5. The method for using the three-stage amplification semi-automatic force-increasing mechanism according to claim 4, characterized in that: Specifically include: Move the manual lever to make the raised side of the eccentric wheel press down the support plate, and the support plate drives the connecting rod and the lever to move. The connecting end of the lever and the connecting rod extends outward, and the connecting end of the lever and the high-strength pressure block is compressed inward. The high-strength pressure block is clamped on the outside of the convex structure that needs to be compressed on the workpiece, and the high-strength pressure block strongly compresses the workpiece under the action of the compression force of the lever.

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