Mechanical engineering clamping equipment

Abstract

The utility model relates to mechanical engineering clamping equipment which comprises a fixed table top, a first clamping arm, a second clamping arm, a carrying platform driving motor and a leveling assembly. A through hole matched with the carrying platform in shape is formed in the fixed table top, the leveling assembly is fixed to the lower end of the carrying platform, the first clamping arm and the second clamping arm are symmetrically fixed to the two sides of the through hole, and the first clamping arm and the second clamping arm are each of a transmission structure; the transmission structure comprises a moving frame, a clamping plate, an elastic piece and an elastic cushion, one end of the moving frame is in driving connection with the driving motor, the clamping plate is rotatably fixed to the side, away from the driving motor, of the moving frame, the elastic cushion is fixed to the side, away from the moving frame, of the clamping plate, and the side, away from the clamping plate, of the elastic cushion is of a wavy structure; the elastic pieces are symmetrically located on the two sides of the rotation center of the clamping plate. Compared with the prior art, the adjusting device has the advantages of high adjusting precision, good workpiece protection, wide application range and the like.

Description

Technical Field

[0001] The utility model relates to the field of auxiliary equipment for mechanical processing, in particular to a mechanical engineering clamping device. Background Art

[0002] Mechanical engineering positioning and clamping equipment is used to secure and support workpieces for processing, assembly, or inspection. These devices play an important role in industrial applications, improving production efficiency and workpiece processing quality. The following are some existing technologies for mechanical engineering positioning and clamping equipment:

[0003] Fixtures typically consist of adjustable jaws used to secure workpieces of varying shapes and sizes. They can be manually operated or automated with pneumatic or hydraulic drive systems. Adjustable fixtures have adjustable positioning elements, such as adjustable pins, bolts, or pneumatic spacers, to accommodate workpieces of varying sizes. They are often equipped with measuring and adjustment devices to ensure precise positioning of the workpiece.

[0004] However, the clamping equipment in the prior art needs to set up more clamps to clamp the workpiece with multiple sides. At the same time, the clamping structure is generally a clamping column, and the clamping column is moved to contact the workpiece without any buffer in the middle. For soft workpieces, there is a risk of damage. In addition, the clamps are set at multiple angles, so that each clamp is driven by a separate motor, resulting in errors in the movement of each clamping structure. Utility Model Content

[0005] The purpose of the present invention is to provide a mechanical engineering clamping device in order to overcome the defects of the prior art in that the clamping structure is generally a clamping column, the movable clamping column contacts the workpiece, there is no buffer in the middle, and there is a risk of damage to soft workpieces.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A mechanical engineering clamping device includes a fixed table, a first clamping arm, a second clamping arm, a loading platform drive motor and a leveling assembly;

[0008] The fixed tabletop is provided with a through hole that matches the shape of the loading platform, the loading platform is located in the through hole, the leveling assembly is fixed to the lower end of the loading platform, the first clamping arm and the second clamping arm are symmetrically fixed on both sides of the through hole, the first clamping arm and the second clamping arm are respectively connected to the drive motor, and the first clamping arm and the second clamping arm are both transmission structures;

[0009] The transmission structure includes a movable frame, a splint, an elastic member and an elastic pad. One end of the movable frame is driven and connected to a driving motor. The splint can be rotatably fixed on a side of the movable frame away from the driving motor. The elastic pad is fixed on a side of the splint away from the movable frame. The side of the elastic pad away from the splint is a wavy structure. One end of the elastic member is connected to the movable frame, and the other end is connected to the splint. The elastic member is symmetrically located on both sides of the rotation center of the splint.

[0010] Preferably, the transmission structure further includes a linear guide rail, the drive motor drives and connects the linear guide rail, and the movable frame is movably fixed on the linear guide rail.

[0011] Preferably, the linear guide rail is a screw structure, the movable frame is provided with a movable nut, the movable nut is threadedly connected to the linear guide rail, and the thread directions of the movable nuts of the first clamping arm and the second clamping arm are opposite.

[0012] Preferably, the leveling assembly includes a support member, an adjustment member and a rotating base; the upper end of the support member is movably connected to the loading platform, the lower end is fixed on the rotating base, and the adjustment member is fixed to the lower end of the loading platform.

[0013] Preferably, the elastic member includes a sleeve, a spring and a connecting rod;

[0014] The sleeve is fixed on the movable frame, the spring is movably fixed in the sleeve, one end of the connecting rod is slidable in the sleeve and abuts against one end of the spring, and the other end of the connecting rod is rotatably fixed on the clamping plate.

[0015] Preferably, a fixing groove is provided on the splint, the width of the fixing groove is greater than the diameter of the connecting rod, and the connecting rod is located in the fixing groove.

[0016] Preferably, the connecting rod is rotatably fixed in the groove by a bolt.

[0017] Preferably, a fixing rod is provided on the movable frame, a fixing plate is provided on a side of the clamping plate close to the movable frame, and the fixing rod is hinged to the fixing plate.

[0018] Preferably, a pressing assembly is provided at the upper end of the clamping plate, and the pressing assembly includes a fixing column, a pressing plate, a threaded rod, a knob and a rubber pad;

[0019] The fixing column is fixed on the upper end of the splint, and the pressure plate is vertically fixed on the fixing column. A threaded hole is provided on the pressure plate, and the threaded rod passes through the threaded hole. One end of the threaded rod is connected to the knob, and the other end is connected to the rubber pad. The lower end surface of the rubber pad and the end surface of the elastic pad close to the workpiece are perpendicular to each other.

[0020] Preferably, a positioning plate is provided on the loading platform, and the positioning plate is detachably fixed on the loading platform.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] (1) This solution places the workpiece to be processed on the loading platform and adjusts the horizontality of the loading platform through the leveling component in order to make the workpiece level. Then, the driving motor drives the moving frame to move so that the first clamping arm and the second clamping arm move toward each other. The elastic pad contacts the workpiece and cooperates with the elastic parts on both sides to make the clamping plate and the workpiece in soft contact, thereby completing the clamping of the workpiece.

[0023] By arranging a leveling component under the loading platform, after the workpiece is placed on the loading platform, the horizontality of the surface of the loading platform is adjusted by the leveling component, which can avoid the problem of platform tilting caused by uneven quality of the workpiece or offset placement position, thereby affecting the accuracy of subsequent processing; the first clamping arm and the second clamping arm of the transmission structure can make soft contact with the workpiece when clamping the workpiece, and the elastic pad with a wavy structure arranged between the clamping plate and the workpiece can adapt to the shape of both sides of the workpiece when clamping, while expanding the scope of use of clamping the workpiece, improving the reliability of the device clamping, reducing the risk of damage to the workpiece, and improving the integrity and safety of the workpiece clamping.

[0024] (2) This solution drives the motor to drive the linear guide rail, which is driven by the screw structure and the movable nut base provided on the movable frame. The thread directions of the movable nuts provided on the movable frames of the first clamping arm and the second clamping arm are opposite, so that the first clamping arm and the second clamping arm can move toward or away from each other, and the linear guide rail improves the synchronization of the movement of the first clamping arm and the second clamping arm, avoiding the problem of asynchrony caused by different motor drives and reducing the clamping accuracy. At the same time, the rotating base in the leveling assembly is used to rotate the loading platform, and the clamping surface of the multi-sided workpiece can be adjusted to face the clamping arms symmetrically provided on both sides, thereby improving the clamping stability and the scope of use of the clamping; and the elastic pad with a wavy structure provided on the front end of the clamping plate can also be adaptively adjusted to the side of the workpiece, thereby effectively improving the reliability of the clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of the clamping device provided by the present invention from a first perspective;

[0026] Figure 2 A schematic structural diagram of the clamping device provided by the present invention from a second perspective;

[0027] Figure 3 A top view of the clamping device provided by the utility model;

[0028] Figure 4 for Figure 3 The enlarged image at A in the middle;

[0029] Figure 5 for Figure 1 The enlarged image at B in the middle;

[0030] In the figure: 1. fixed table top, 2. first clamping arm, 3. second clamping arm, 4. loading platform, 5. leveling assembly, 11. through hole, 21. movable frame, 22. clamping plate, 23. elastic member, 24. elastic pad, 25. linear guide rail, 26. clamping assembly, 211. fixing rod, 221. fixing groove, 222. fixing plate, 231. sleeve, 232. spring, 233 connecting rod, 261. fixing column, 262. pressure plate, 263. thread, 264. knob, 265 rubber pad. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0035] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0036] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0037] Example 1

[0038] like Figure 1 As shown, this embodiment provides a mechanical engineering clamping device, including a fixed table 1, a first clamping arm 2, a second clamping arm 3, a loading platform 4, a driving motor and a leveling component 5;

[0039] The fixed tabletop 1 is provided with a through hole 11 that matches the shape of the loading platform 4. The loading platform 4 is located in the through hole 11. The leveling assembly 5 is fixed to the lower end of the loading platform 4. The first clamping arm 2 and the second clamping arm 3 are symmetrically fixed on both sides of the through hole 11. The first clamping arm 2 and the second clamping arm 3 are respectively connected to the drive motor. The first clamping arm 2 and the second clamping arm 3 are both transmission structures;

[0040] The transmission structure includes a moving frame 21, a splint 22, an elastic member 23 and an elastic pad 24. One end of the moving frame 21 is driven and connected to the driving motor. The splint 22 can be rotatably fixed on the side of the moving frame 21 away from the driving motor. The elastic pad 24 is fixed on the side of the splint 22 away from the moving frame 21. The side of the elastic pad 24 away from the splint 22 is a wavy structure. One end of the elastic member 23 is connected to the moving frame 21, and the other end is connected to the splint 22. The elastic member 23 is symmetrically located on both sides of the rotation center of the splint 22.

[0041] Working principle: Place the workpiece to be processed on the loading platform 4, and adjust the level of the loading platform 4 through the leveling component 5 to make the placed workpiece level. Then the driving motor drives the mobile frame 21 to move, so that the first clamping arm 2 and the second clamping arm 3 move towards each other, the elastic pad 24 contacts the workpiece, and cooperates with the elastic parts 23 on both sides to make the clamping plate 22 softly contact with the workpiece, thereby completing the clamping of the workpiece.

[0042] By arranging a leveling component 5 under the loading platform 4, after the workpiece is placed on the loading platform 4, the horizontality of the upper surface of the loading platform 4 is adjusted by the leveling component 5, which can avoid the problem of the platform tilting due to uneven quality of the workpiece or offset placement position, thereby affecting the accuracy of subsequent processing; the first clamping arm 2 and the second clamping arm 3 of the transmission structure can make soft contact with the workpiece when clamping the workpiece, and the elastic pad 24 with a wavy structure arranged between the clamping plate 22 and the workpiece can adapt to the shape of both sides of the workpiece when clamping, while expanding the scope of use of clamping the workpiece, improving the reliability of the device clamping, reducing the risk of damage to the workpiece, and improving the integrity and safety of the workpiece clamping.

[0043] Preferred embodiment, as Figure 2 and Figure 3 As shown, the transmission structure also includes a linear guide 25, which is driven by a drive motor and connected to the linear guide 25. The movable frame 21 is movably fixed on the linear guide 25. The linear guide 25 is a screw structure, and a movable nut is provided on the movable frame 21. The movable nut is threadedly connected to the linear guide 25. The thread directions of the movable nuts of the first clamping arm 2 and the second clamping arm 3 are opposite.

[0044] Among them, guide rods are also arranged in parallel on both sides of the linear guide rail to assist the movement of the movable frame, so that the linear guide rail enables the clamping structure to move smoothly along the set path.

[0045] Furthermore, the leveling assembly 5 includes a support member, an adjustment member, and a rotating base. The upper end of the support member is movably connected to the loading platform, while the lower end is fixed to the rotating base. The adjustment member is fixed to the lower end of the loading platform. It is understood that there are many ways to adjust the level of the loading platform or drive the rotation of the loading platform. Since this is a prior art, it will not be elaborated on in detail.

[0046] The driving motor drives the linear guide rail, which is connected to the screw structure and driven by the mobile nut base installed on the mobile frame. The thread directions of the mobile nuts installed on the mobile frames of the first clamping arm and the second clamping arm are opposite, so that the first clamping arm and the second clamping arm can move towards or away from each other. The linear guide rail improves the synchronization of the movement of the first clamping arm and the second clamping arm, avoiding the problem of asynchrony caused by different motor drives and reducing clamping accuracy. At the same time, the rotating base in the leveling assembly is used to rotate the loading platform, which can adjust the clamping surface of the multi-sided workpiece to face the clamping arms symmetrically arranged on both sides, improving the clamping stability and the range of use of the clamping. The elastic pad with a wavy structure set at the front end of the clamping plate can also be adaptively adjusted to the side of the workpiece, thereby effectively improving the reliability of the clamping.

[0047] Specifically, if Figure 4 As shown, the elastic member 23 includes a sleeve 231, a spring 232 and a connecting rod 233;

[0048] Sleeve 231 is fixed to movable frame 21, spring 232 is movably fixed within sleeve 231, one end of connecting rod 233 is slidably positioned within sleeve 231 and abuts against one end of spring 232, while the other end of connecting rod 233 is rotatably fixed to clamping plate 22. Clamping plate 22 is provided with a fixing groove 221, the width of which is greater than the diameter of connecting rod 233. Connecting rod 233 is positioned within fixing groove 221. Connecting rod 233 is rotatably fixed within groove 221 via a bolt.

[0049] A fixing rod 211 is provided on the movable frame 21 , and a fixing plate 222 is provided on a side of the clamping plate 22 close to the movable frame 21 . The fixing rod 211 and the fixing plate 222 are hinged.

[0050] For irregularly shaped workpieces, the hinged connection between the mounting rod and plate allows the protective pad to adapt to the workpiece's contours, increasing the contact area. When the workpiece presses against the pad, it rotates around the mounting block, while the clamping plate pushes the slide rod to compress the compression spring, further ensuring a secure hold on the workpiece.

[0051] Preferred embodiment, as Figure 5 As shown, a pressing assembly 26 is provided at the upper end of the clamping plate 22 , and the pressing assembly 26 includes a fixing column 261 , a pressing plate 262 , a threaded rod 263 , a knob 264 and a rubber pad 265 ;

[0052] The fixing column 261 is fixed to the upper end of the clamping plate 22, and the pressing plate 262 is vertically fixed on the fixing column 261. A threaded hole is provided on the pressing plate 262, and the threaded rod 263 passes through the threaded hole. One end of the threaded rod 263 is connected to the knob 264, and the other end is connected to the rubber pad 265. The lower end surface of the rubber pad 265 is perpendicular to the end surface of the elastic pad 24 close to the workpiece.

[0053] The knob 264 drives the threaded rod 263 to rotate along the threaded hole, thereby driving the rubber pad 265 to move up and down, adjusting the distance between the rubber pad 265 and the workpiece. For workpieces of different heights, the rubber pad 265 can be adjusted to perform auxiliary clamping from above to ensure the reliability of the clamping, and the structure is easy to adjust and the auxiliary clamping is stable.

[0054] Optionally, a positioning plate is provided on the loading platform, which is detachably fixed to the loading platform. The positioning plate is used to initially position the workpiece, facilitate the subsequent rotation or movement of the loading platform, and ensure that the clamping arms on both sides can contact the workpiece as much as possible at the same time, thereby improving the clamping accuracy.

[0055] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A mechanical engineering clamping device, characterized in that, It comprises a fixed tabletop (1), a first clamping arm (2), a second clamping arm (3), a loading platform (4), a driving motor and a leveling component (5); The fixed tabletop (1) is provided with a through hole (11) that matches the shape of the loading platform (4), the loading platform (4) is located in the through hole (11), the leveling component (5) is fixed to the lower end of the loading platform (4), the first clamping arm (2) and the second clamping arm (3) are symmetrically fixed on both sides of the through hole (11), the first clamping arm (2) and the second clamping arm (3) are respectively connected to the driving motor, and the first clamping arm (2) and the second clamping arm (3) are both transmission structures; The transmission structure comprises a movable frame (21), a clamping plate (22), an elastic member (23) and an elastic pad (24); one end of the movable frame (21) is driven and connected to a driving motor; the clamping plate (22) is rotatably fixed on a side of the movable frame (21) away from the driving motor; the elastic pad (24) is fixed on a side of the clamping plate (22) away from the movable frame (21); the side of the elastic pad (24) away from the clamping plate (22) is a wavy structure; one end of the elastic member (23) is connected to the movable frame (21) and the other end is connected to the clamping plate (22); the elastic member (23) is symmetrically located on both sides of the rotation center of the clamping plate (22).

2. A mechanical engineering clamping device according to claim 1, characterized in that: The transmission structure further comprises a linear guide rail (25), the driving motor drives and connects the linear guide rail (25), and the movable frame (21) is movably fixed on the linear guide rail (25).

3. A mechanical engineering clamping device according to claim 2, characterized in that: The linear guide rail (25) is a screw structure, and a moving nut is provided on the moving frame (21). The moving nut is threadedly connected to the linear guide rail (25), and the thread directions of the moving nuts of the first clamping arm (2) and the second clamping arm (3) are opposite.

4. A mechanical engineering clamping device according to claim 1, characterized in that: The leveling component (5) comprises a support member, an adjusting member and a rotating base; the upper end of the support member is movably connected to the loading platform, the lower end is fixed on the rotating base, and the adjusting member is fixed to the lower end of the loading platform.

5. A mechanical engineering clamping device according to claim 1, characterized in that: The elastic member (23) includes a sleeve (231), a spring (232) and a connecting rod (233); The sleeve (231) is fixed on the movable frame (21), the spring (232) is movably fixed in the sleeve (231), one end of the connecting rod (233) is slidably located in the sleeve (231) and abuts against one end of the spring (232), and the other end of the connecting rod (233) is rotatably fixed on the clamping plate (22).

6. A mechanical engineering clamping device according to claim 5, characterized in that: A fixing groove (221) is provided on the clamping plate (22), the width of the fixing groove (221) is greater than the diameter of the connecting rod (233), and the connecting rod (233) is located in the fixing groove (221).

7. A mechanical engineering clamping device according to claim 6, characterized in that: The connecting rod (233) is rotatably fixed in the groove (221) by means of a bolt.

8. A mechanical engineering clamping device according to claim 1, characterized in that: A fixing rod (211) is provided on the movable frame (21), a fixing plate (222) is provided on a side of the clamping plate (22) close to the movable frame (21), and the fixing rod (211) is hinged to the fixing plate (222).

9. A mechanical engineering clamping device according to claim 1, characterized in that: A pressing assembly (26) is provided at the upper end of the clamping plate (22), and the pressing assembly (26) includes a fixing column (261), a pressing plate (262), a threaded rod (263), a knob (264) and a rubber pad (265); The fixing column (261) is fixed to the upper end of the clamping plate (22), and the pressing plate (262) is vertically fixed to the fixing column (261). The pressing plate (262) is provided with a threaded hole, and the threaded rod (263) passes through the threaded hole. One end of the threaded rod (263) is connected to the knob (264), and the other end is connected to the rubber pad (265). The lower end surface of the rubber pad (265) and the end surface of the elastic pad (24) close to the workpiece are perpendicular to each other.

10. A mechanical engineering clamping device according to claim 1, characterized in that: A positioning plate is provided on the loading platform, and the positioning plate is detachably fixed on the loading platform.

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