Positioning device for plate shearing machine

Abstract

The utility model discloses a positioning device for a plate shearing machine, which comprises two mounting frames and a cutter, limiting plates are arranged on two sides of the cutter, three mounting blocks distributed at equal intervals are arranged on the outer wall of the bottom of each limiting plate, the positioning device further comprises an adjusting mechanism and a positioning mechanism, the adjusting mechanism is positioned on one side of each mounting frame and comprises a fixed frame and a threaded rod, and the threaded rods are arranged on the fixed frames. And one end of the threaded rod is connected to the outer wall of one side of one mounting block through a bearing, a mounting opening is formed in the outer wall of the top of the fixing frame, a fixing frame is arranged on the inner wall of the mounting opening, and a mounting frame is arranged on the outer wall of the top of the fixing frame. Compared with the traditional mode that an operator needs to adopt measuring tools such as a tape measure to measure the distance between a rear striker plate and a cutter, the positioning device for the plate shearing machine has the advantages that labor burden is relieved, labor cost is reduced, and potential safety hazards of the operator are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plate shears, in particular to a positioning device for a plate shear. Background Art

[0002] A plate shear is a common metal processing equipment, mainly used for shearing metal plates of various thicknesses. It is mainly a machine that uses one blade to make a reciprocating linear motion relative to another blade to shear the plate. It is a machine that relies on the moving upper blade and the fixed lower blade. By adopting a reasonable blade gap, a shearing force is applied to metal plates of various thicknesses, so that the plate is broken and separated according to the required size. The plate shear is widely applicable to industries such as aviation, light industry, metallurgy, chemical industry, construction, shipbuilding, automobiles, electric power, electrical appliances, and decoration to provide the required special machinery and complete sets of equipment.

[0003] The patent document with the application number 202020303623.7 discloses a positioning device for a plate shear, including a fixed base, a blade body arranged above the fixed base, connecting shaft sleeves arranged on both sides of the blade body, guide columns slidably connected with the connecting shaft sleeves, fixed seats arranged on both sides of the guide columns, and a limit protrusion arranged below the blade body. The limit protrusion is made of whetstone material, so as to facilitate the fixation of the guide columns through the fixed seats.

[0004] However, when using the traditional positioning device of the plate shear, it is necessary to first adjust the distance between the back gauge and the cutting knife of the plate shear. The back gauge is used as the positioning reference for the steel plate before shearing, and the accuracy of its position directly affects the dimensional accuracy of the steel plate after shearing. Usually, the operator first measures the current distance between the back gauge and the cutting knife according to the size of the steel plate to be sheared by using tools such as a tape measure and adjusts it. In the traditional adjustment process, it may require multiple people to cooperate to complete, which will increase the labor cost. Especially when adjusting the position, it may increase the safety hazards of employees. For example, the hands or other body parts of employees may be pinched or scratched. Summary of the Utility Model

[0005] The utility model discloses a positioning device for a plate shear, aiming to solve the technical problem that when using the traditional positioning device of the plate shear, it is necessary to first adjust the distance between the back gauge and the cutting knife of the plate shear. The back gauge is used as the positioning reference for the steel plate before shearing, and the accuracy of its position directly affects the dimensional accuracy of the steel plate after shearing. Usually, the operator first measures the current distance between the back gauge and the cutting knife according to the size of the steel plate to be sheared by using tools such as a tape measure and adjusts it. In the traditional adjustment process, it may require multiple people to cooperate to complete, which will increase the labor cost. Especially when adjusting the position, it may increase the safety hazards of employees. For example, the hands or other body parts of employees may be pinched or scratched.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A positioning device for a plate shearing machine, comprising two mounting frames and a cutting knife. Limiting plates are arranged on both sides of the cutting knife. Three equally spaced mounting blocks are arranged on the outer wall of the bottom of the limiting plate. It further includes:

[0008] An adjusting mechanism: located on one side of the mounting frame. The adjusting mechanism includes a fixed frame and a threaded rod. One end of the threaded rod is connected to the outer wall of one side of one of the mounting blocks through a bearing. An installation opening is formed on the outer wall of the top of the fixed frame. A fixed frame is arranged on the inner wall of the installation opening. An installation frame is arranged on the outer wall of the top of the fixed frame. A worm is connected to the inner walls of the opposite sides of the installation frame through a bearing. A knob is arranged at one end of the worm. A worm gear is arranged on the circumferential outer wall of the threaded rod. Support frames are arranged on the outer walls of both sides of the worm gear. The bottom outer wall of the support frame is connected to the fixed frame. The worm and the worm gear are meshed with each other;

[0009] A limiting mechanism: located on both sides of the adjusting mechanism.

[0010] With the above technical solutions, during use, first rotate the knob, which drives the worm to rotate. Since the worm and the worm gear are meshed with each other, the worm gear and the threaded rod are driven to rotate. Because the connecting block and the threaded rod are connected by threads, when the threaded rod rotates, the rear stop plate moves in a one-way straight line under the limiting action of the limiting mechanism, the threaded rod and the two limiting rods. In the initial state, the rear stop plate is in contact with the outer wall of one side of the cutting knife. When the shearing size of the plate needs to be adjusted, the distance between the rear stop plate and the cutting knife can be adjusted in the above manner. The set distance measuring instrument facilitates the operator to directly observe the adjusted distance visually. Compared with the traditional method that requires the operator to use measuring tools such as a tape measure to measure the distance between the rear stop plate and the cutting knife, it reduces the labor burden, reduces the labor cost, and also avoids the safety hazards of employees.

[0011] In a preferred solution, limiting rods are arranged on the outer walls of one side of two of the mounting blocks. The threaded rod is located between the two limiting rods. Connecting blocks are arranged on the circumferential outer walls of the threaded rod and the two limiting rods. A distance measuring instrument is arranged on the outer wall of the top of one of the connecting blocks.

[0012] In this solution, the set limiting rods facilitate the stable movement of the rear stop plate and limit it at the same time. The set distance measuring instrument facilitates the operator to directly see the corresponding adjusted size with the naked eye. Compared with the traditional use of measuring tools such as a tape measure, it reduces errors and improves the accuracy of size adjustment.

[0013] In a preferred embodiment, the limiting mechanism includes two first connecting rods and two second connecting rods. The two first connecting rods and the two second connecting rods are respectively located on one outer wall of the two mounting brackets. A second limiting groove is formed on one outer wall of the first connecting rod, and a first limiting groove is formed on one outer wall of the second connecting rod. Two sliders are provided on both outer walls of the rear baffle, and two of the sliders are respectively slidably connected to the inner walls of the two first limiting grooves, and two of the sliders are respectively slidably connected to the inner walls of the two second limiting grooves.

[0014] When the rear baffle moves along the circumferential outer wall of the threaded rod, the two sliders on both sides slide respectively in the first limiting groove and the second limiting groove, thereby limiting the rear baffle and enhancing the stability of the rear baffle during movement.

[0015] As can be seen from the above, a positioning device for a shearing machine includes two mounting brackets and a cutting knife. Limiting plates are provided on both sides of the cutting knife, and three equally spaced mounting blocks are provided on the bottom outer wall of the limiting plate. It further includes:

[0016] Adjusting mechanism: Located on one side of the mounting bracket, the adjusting mechanism includes a fixed frame and a threaded rod. One end of the threaded rod is connected to one outer wall of one of the mounting blocks through a bearing. An installation opening is formed on the top outer wall of the fixed frame, a fixed frame is provided on the inner wall of the installation opening, an installation frame is provided on the top outer wall of the fixed frame, a worm is connected to the inner walls of the opposite sides of the installation frame through a bearing, a knob is provided at one end of the worm, a worm gear is provided on the circumferential outer wall of the threaded rod, support frames are provided on both outer walls of the worm gear, and the bottom outer wall of the support frame is connected to the fixed frame. The worm and the worm gear are meshed with each other;

[0017] Limiting mechanism: Located on both sides of the adjusting mechanism. Compared with the traditional method that requires operators to use measuring tools such as tape measures to measure the distance between the rear baffle and the cutting knife, the positioning device for a shearing machine provided by the present invention has the technical effects of reducing the labor burden, reducing labor costs, and avoiding potential safety hazards for employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a positioning device for a shearing machine proposed by the present invention.

[0019] Figure 2 FIG. 2 is a schematic diagram of the structure of the adjusting mechanism of a positioning device for a shearing machine proposed by the present invention.

[0020] Figure 3 FIG. 3 is a schematic diagram of the structure of the limiting mechanism of a positioning device for a shearing machine proposed by the present invention.

[0021] In the accompanying drawings: 1. mounting frame; 2. cutting knife; 3. limiting frame; 4. fixing frame; 5. limiting rod; 6. rear stop; 7. first connecting rod; 8. second connecting rod; 9. first limiting groove; 10. fixing frame; 11. second limiting groove; 12. mounting frame; 13. threaded rod; 14. worm; 15. worm gear; 16. support frame; 17. knob; 18. mounting block; 19. connecting block; 20. rangefinder. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Usually, the components of the embodiments of the present application described and marked in the accompanying drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but only represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] A positioning device for a shearing machine disclosed by the present utility model is mainly applied when using a traditional positioning device for a shearing machine. It is necessary to first adjust the distance between the rear stop of the shearing machine and the cutting knife. The rear stop serves as the positioning reference for the steel plate before shearing, and the accuracy of its position directly affects the dimensional accuracy of the steel plate after shearing. Usually, manually first measures the distance between the current rear stop and the cutting knife according to the size of the steel plate to be sheared, using tools such as a tape measure, and adjusts it. In the traditional adjustment process, it may require multiple people to cooperate to complete, which will increase the labor cost. Especially when adjusting the position, it may increase the safety hazards of employees. For example, scenarios where an employee's hand or other body parts are pinched or scratched.

[0024] Referring to Figure 1 、 Figure 2 and Figure 3 , a positioning device for a shearing machine includes two mounting frames 1 and a cutting knife 2. Limiting plates are provided on both sides of the cutting knife 2, and three equally spaced mounting blocks 18 are provided on the outer wall of the bottom of the limiting plate. It further includes:

[0025] Adjusting mechanism: Located on one side of the mounting bracket 1, the adjusting mechanism includes a fixed bracket 4 and a threaded rod 13. One end of the threaded rod 13 is connected to the outer wall of one side of one of the mounting blocks 18 through a bearing. An installation opening is provided on the top outer wall of the fixed bracket 4, and a fixed frame 10 is provided on the inner wall of the installation opening. An installation frame 12 is provided on the top outer wall of the fixed frame 10. A worm 14 is connected to the inner walls of the opposite sides of the installation frame 12 through bearings. One end of the worm 14 is provided with a knob 17. A worm gear 15 is provided on the circumferential outer wall of the threaded rod 13. Support frames 16 are provided on the outer walls of both sides of the worm gear 15. The bottom outer wall of the support frame 16 is connected to the fixed frame 10. The worm 14 and the worm gear 15 are meshed with each other;

[0026] Limiting mechanism: Located on both sides of the adjusting mechanism.

[0027] In the specific implementation process, limiting rods 5 are provided on the outer walls of one sides of two of the mounting blocks 18. The threaded rod 13 is located between the two limiting rods 5. Connecting blocks 19 are provided on the circumferential outer walls of the threaded rod 13 and the two limiting rods 5. A distance measuring instrument 20 is provided on the top outer wall of one of the connecting blocks 19. The provided distance measuring instrument 20 facilitates the operator to directly see the corresponding adjusted dimension with the naked eye. Compared with the traditional use of measuring tools such as a tape measure, the error is reduced and the accuracy of dimension adjustment is improved.

[0028] Among them, the connecting block 19 is of an "L" - shaped structure. A rear material baffle 6 is provided on the outer wall of one side of the connecting block 19. The "L" - shaped connecting block 19 can connect the rear material baffle 6 with the limiting rod 5 and the threaded rod 13, facilitating the rear material baffle 6 to move along a specific path. The provided limiting rod 5 facilitates the smooth movement of the rear material baffle 6 and limits it at the same time.

[0029] In the specific use process, the fixed frame 10 is of a "concave" - shaped structure. The "concave" - shaped fixed frame 10 facilitates providing an installation space for the installation frame 12 and the worm gear 15, and at the same time plays a role in installing and supporting the worm gear 15 and the support frame 16.

[0030] Specifically, when in use, first rotate the knob 17, thereby driving the worm 14 to rotate. Since the worm 14 and the worm gear 15 are meshed with each other, the worm gear 15 and the threaded rod 13 are driven to rotate. Because the connecting block 19 and the threaded rod 13 are connected by threads, when the threaded rod 13 rotates, the rear material baffle 6 moves in a one - way straight line under the limiting action of the limiting mechanism, the threaded rod 13 and the two limiting rods 5. In the initial state, the rear material baffle 6 is in contact with the outer wall of one side of the cutting knife 2. When it is necessary to adjust the shearing size of the plate, the distance between the rear material baffle 6 and the cutting knife 2 can be adjusted in the above - mentioned manner. The provided distance measuring instrument 20 facilitates the operator to directly observe the adjusted distance. Compared with the traditional method that the operator uses measuring tools such as a tape measure to measure the distance between the rear material baffle 6 and the cutting knife 2, the labor burden is reduced, the labor cost is reduced, and the safety hazard of employees is also avoided.

[0031] Referring to Figure 1 and Figure 3 , in a preferred embodiment, the limiting mechanism includes two first connecting rods 7 and two second connecting rods 8. The two first connecting rods 7 and the two second connecting rods 8 are respectively located on one outer wall side of the two mounting brackets 1. A second limiting groove 11 is formed on one outer wall of the first connecting rod 7, and a first limiting groove 9 is formed on one outer wall of the second connecting rod 8. Two sliders are provided on both outer walls of the rear material baffle 6, wherein two of the sliders are respectively slidably connected to the inner walls of the two first limiting grooves 9, and wherein two of the sliders are respectively slidably connected to the inner walls of the two second limiting grooves 11.

[0032] Wherein, one outer wall and the bottom outer wall of the fixing frame 4 are respectively connected to one end of the second connecting rod 8 and the top outer wall of the first connecting rod 7.

[0033] Specifically, when the rear material baffle 6 moves along the circumferential outer wall of the threaded rod 13, the two sliders on both sides respectively slide in the first limiting groove 9 and the second limiting groove 11, thereby limiting the rear material baffle 6 and enhancing the stability of the rear material baffle 6 during movement.

[0034] Referring to Figure 1 , in a preferred embodiment, a limiting frame 3 is provided on the top outer walls of the two limiting plates. A limiting opening is formed on the top of the limiting frame 3. The two limiting plates are located on the top outer walls of the two mounting brackets 1. The cutting knife 2 is adapted to the limiting opening. Such a setting prevents the cutting knife 2 from shifting when shearing the plate up and down, and enhances the limiting effect on the cutting knife 2.

[0035] Working principle: When in use, first rotate the knob 17, thereby driving the worm 14 to rotate. Since the worm 14 and the worm gear 15 are meshed with each other, the worm gear 15 and the threaded rod 13 are further driven to rotate. Because the connecting block 19 and the threaded rod 13 are threadedly connected, when the threaded rod 13 rotates, the rear material baffle 6 moves in a one-way straight line under the limiting action of the limiting mechanism, the threaded rod 13 and the two limiting rods 5. In the initial state, the rear material baffle 6 is in contact with one outer wall of the cutting knife 2. When it is necessary to adjust the shearing size of the plate, the distance between the rear material baffle 6 and the cutting knife 2 can be adjusted in the above manner. The set distance measuring instrument 20 facilitates the operator to directly observe the adjusted distance. Compared with the traditional method that the operator uses a measuring tool such as a tape measure to measure the distance between the rear material baffle 6 and the cutting knife 2, the labor burden is reduced, the labor cost is reduced, and the safety hazard of employees is also avoided.

[0036] As described above, it is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. The substitution may be the substitution of some structures, devices, method steps, or a complete technical solution. Any equivalent substitution or change made according to the technical solution of the present utility model and its inventive concept should be covered within the protection scope of the present utility model.

Claims

1. A positioning device for a shearing machine, comprising two mounting frames (1) and a cutting blade (2), characterized in that: The cutter (2) is provided with a limit plate on both sides, and the bottom outer wall of the limit plate is provided with three mounting blocks (18) distributed at equal distances, and further comprises: An adjustment mechanism: located on one side of the mounting frame (1), the adjustment mechanism comprises a fixing frame (4) and a threaded rod (13), one end of the threaded rod (13) being connected to an outer wall of one side of one of the mounting blocks (18) via a bearing, a mounting opening being provided on the top outer wall of the fixing frame (4), a fixing frame (10) being provided on the inner wall of the mounting opening, a mounting frame (12) being provided on the top outer wall of the fixing frame (10), a worm (14) being connected to an inner wall of an opposite side of the mounting frame (12) via a bearing, a knob (17) being provided at one end of the worm (14), a worm wheel (15) being provided on the circumferential outer wall of the threaded rod (13), support frames (16) being provided on both outer walls of the worm wheel (15), a bottom outer wall of the support frame (16) being connected to the fixing frame (10), and the worm (14) and the worm wheel (15) being meshed with each other; Limiting mechanism: located on both sides of the adjusting mechanism.

2. A positioning device for a shearing machine according to claim 1, characterized in that: A limiting rod (5) is provided on one side outer wall of two of the mounting blocks (18), the threaded rod (13) is located between the two limiting rods (5), and a connecting block (19) is provided on the circumferential outer wall of the threaded rod (13) and the two limiting rods (5), wherein a distance meter (20) is provided on the top outer wall of one of the connecting blocks (19).

3. A positioning device for a shearing machine according to claim 2, characterized in that: The connecting block (19) is an "L"-shaped structure, and a rear stop plate (6) is provided on an outer wall of one side of the connecting block (19).

4. A positioning device for a shearing machine according to claim 3, characterized in that: The fixing frame (10) is a "concave" shaped structure.

5. A positioning device for a plate shearing machine according to claim 3, characterized in that: The limiting mechanism comprises two first connecting rods (7) and two second connecting rods (8), the two first connecting rods (7) and the two second connecting rods (8) are respectively located on one side outer wall of the two mounting frames (1), one side outer wall of the first connecting rod (7) is provided with a second limiting groove (11), one side outer wall of the second connecting rod (8) is provided with a first limiting groove (9), and two sliding blocks are respectively provided on the outer walls of both sides of the rear stop plate (6), wherein the two sliding blocks are respectively slidably connected to the inner walls of the two first limiting grooves (9), and wherein the two sliding blocks are respectively slidably connected to the inner walls of the two second limiting grooves (11).

6. A positioning device for a shearing machine according to claim 5, characterized in that: One side outer wall and the bottom outer wall of the fixing frame (4) are respectively connected to one end of the second connecting rod (8) and the top outer wall of the first connecting rod (7).

7. A positioning device for a shearing machine according to claim 1, characterized in that: A limit frame (3) is provided on the top outer walls of the two limit plates, a limit opening is provided on the top of the limit frame (3), the two limit plates are located on the top outer walls of the two mounting frames (1), and the cutter (2) is adapted to the limit opening.

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