Clamping device for taking round bar type workpieces

Abstract

The utility model provides a clamping device for taking round bar type workpieces, which comprises a base, two groups of clamping mechanisms are arranged on the lower surface of the base, the two groups of clamping mechanisms are respectively used for clamping two ends of a round bar, each clamping mechanism comprises a clamping block used for supporting the outer surface of the round bar, and a pneumatic chuck is further arranged on one side of the base. The two ends of the round bar type workpiece are clamped through the two clamping mechanisms, and the round bar type workpiece in the transverse state can be clamped and transferred conveniently; the round bar type workpieces in the vertical state are conveniently clamped and transferred through the pneumatic chuck, and the stability and safety of the round bar type workpieces in the transferring process can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices, and specifically relates to a clamping device for picking up round bar-shaped workpieces. Background Technique

[0002] At present, the clamping devices used for picking up round bar-shaped workpieces have a single structure and are not convenient for clamping workpieces in different states. During the process of clamping and transferring materials, the workpieces may fall off. For example, some clamping devices are suitable for clamping round bar-shaped workpieces placed horizontally, while when clamping round bar-shaped workpieces placed vertically, the round bar-shaped workpieces will slide relative to the clamping device under the action of their own gravity, resulting in the workpieces falling during the transfer process; and some clamping devices cannot clamp round bar-shaped workpieces placed horizontally. Therefore, we propose a clamping device for picking up round bar-shaped workpieces. Content of the Utility Model

[0003] The purpose of the utility model is to improve and innovate in view of the shortcomings and problems existing in the background technique, and provide a clamping device for picking up round bar-shaped workpieces.

[0004] A clamping device for picking up round bar-shaped workpieces includes a base. Two clamping mechanisms are arranged on the lower surface of the base. The two clamping mechanisms are respectively used for clamping the two ends of the round bar-shaped workpieces. The clamping mechanism includes a clamping block for supporting the outer surface of the round bar-shaped workpieces. A pneumatic chuck is also arranged on one side of the base.

[0005] Furthermore, a moving mechanism is also included. The moving mechanism is used to adjust the distance between the two clamping mechanisms.

[0006] Furthermore, the moving mechanism includes a lead screw and a guide rail. The lead screw is driven to rotate by a motor. The middle part of the lead screw penetrates through a slider and is threadedly connected with the slider. The middle part of the guide rail penetrates through the slider and is in sliding fit with the slider. The lead screw is rotatably connected to the base, and the guide rail is fixedly connected to the base. One of the clamping mechanisms is installed on the slider, and the other clamping mechanism is installed on the base.

[0007] Furthermore, the clamping mechanism includes a first cylinder. The telescopic end of the first cylinder is fixedly connected with a movable plate. One end of the first cylinder away from the movable plate is provided with a fixed plate. Oppositely arranged first fixed clamping blocks and first movable clamping blocks are respectively installed on the fixed plate and the movable plate. The inner sides of the first fixed clamping blocks and the first movable clamping blocks are both in an arc shape adapted to the outer surface of the round bar-shaped workpieces.

[0008] A further solution is that the clamping mechanism includes a base. One side of the bottom end of the base is provided with a second fixed clamp block. The other side of the bottom end of the base is rotatably connected to a second cylinder through a pin shaft. The telescopic end of the second cylinder is rotatably connected to one end of a second movable clamp block. The other end of the second movable clamp block passes through the upper end of the base and extends above the second fixed clamp block. The middle of the second movable clamp block is rotatably connected to the upper end of the base.

[0009] A further solution is that the upper surface of the second fixed clamp block is V-shaped.

[0010] A further solution is that the motor drives the screw rod to rotate through a synchronous belt and a synchronous pulley.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: (1) The present utility model clamps the two ends of a round bar workpiece through two sets of clamping mechanisms, which is convenient for clamping and transferring round bar workpieces in a horizontal state; it is convenient to clamp and transfer round bar workpieces in a vertical state through a pneumatic chuck, which can ensure the stability and safety of round bar workpieces during the transfer process.

[0012] (2) The present utility model adjusts the distance between the two sets of clamping mechanisms through a moving mechanism, which is convenient for clamping round bar workpieces of different lengths and improves the applicability of the device; the clamping mechanism of the present utility model includes a fixed clamp block and a movable clamp block, which is convenient for clamping round bar workpieces of different diameters and further improves the applicability of the device. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 Structural schematic of a clamping device for picking up round bar workpieces provided by the first embodiment of the present utility model Figure 1 ;

[0015] Figure 2 Structural schematic of a clamping device for picking up round bar workpieces provided by the first embodiment of the present utility model Figure 2 ;

[0016] Figure 3 Structural schematic of a clamping device for picking up round bar workpieces provided by the second embodiment of the present utility model Figure 1 ;

[0017] Figure 4Schematic structure of a clamping device for picking round bar workpieces provided by the second embodiment of the present utility model Figure 2 。

[0018] Reference numerals: base 1, motor 2, lead screw 3, slider 4, guide rail 5, first cylinder 6, fixing plate 7, movable plate 8, first fixed clamping block 9, first movable clamping block 10, pneumatic chuck 11, base 12, second cylinder 13, second fixed clamping block 14, second movable clamping block 15. Detailed implementation manners

[0019] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present utility model with reference to the accompanying drawings.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific implementation manners and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] Embodiment 1

[0023] Please refer to Figure 1 - Figure 2 , the present utility model provides a clamping device for picking round bar workpieces, including a base 1. Two clamping mechanisms are provided on the lower surface of the base 1. The two clamping mechanisms are respectively used to clamp the two ends of the round bar workpieces. A pneumatic chuck 11 is also provided at the end of the base 1. The pneumatic chuck 11 is a pneumatic three-jaw chuck, which facilitates the clamping and transfer of round bar workpieces in a vertical state through the pneumatic chuck 11.

[0024] The clamping mechanism includes a first cylinder 6. The telescopic end of the first cylinder 6 is fixedly connected to a movable plate 8. One end of the first cylinder 6 away from the movable plate 8 is provided with a fixed plate 7. Oppositely arranged first fixed clamping blocks 9 and first movable clamping blocks 10 are respectively installed on the fixed plate 7 and the movable plate 8. The inner sides of the first fixed clamping blocks 9 and the first movable clamping blocks 10 are both arc-shaped and adapted to the outer surface of the round bar. Through the telescopic movement of the first cylinder 6, it is convenient to drive the first movable clamping block 10 to approach or move away from the first fixed clamping block 9, thereby adjusting the distance between the first fixed clamping block 9 and the first movable clamping block 10, and facilitating the clamping of round bar workpieces with different diameters. The inner sides of the first fixed clamping blocks 9 and the first movable clamping blocks 10 are both arc-shaped. When clamping round bar workpieces, the distance between the bottoms of the first fixed clamping blocks 9 and the first movable clamping blocks 10 is smaller than the diameter of the round bar workpieces, so that the first fixed clamping blocks 9 and the second movable clamping blocks 10 can support the bottom surface of the round bar workpieces, avoiding the dropping of the round bar workpieces in the horizontal state during the transfer process, and ensuring the stability and safety of the round bar workpieces during the transfer process.

[0025] The first cylinder 6 of one set of clamping mechanisms is installed on the base 1, and the first cylinder 6 of the other set of clamping mechanisms is installed on the slider 4. The slider 4 is driven by a moving mechanism, so that the slider 4 can move along the length direction of the base 1 to adjust the distance between the two sets of clamping mechanisms, facilitating the clamping of round bar workpieces with different lengths and improving the applicability of the device. The moving mechanism includes a motor 2, a lead screw 3 and a guide rail 5. The motor 2 drives the lead screw 3 to rotate through a synchronous belt and a synchronous pulley. Of course, the motor 2 can also drive the lead screw 3 to rotate through a gear drive. The present application does not make specific limitations. The middle part of the lead screw 3 passes through the slider 4 and is threadedly connected thereto. The middle part of the guide rail 5 passes through the guide rail 5 and is slidably matched therewith. The lead screw 3 is rotatably connected to the base 1, and the guide rail 5 is fixedly connected to the base 1.

[0026] It should be noted that a flange is installed on the upper surface of the base 1 of the round bar workpiece picking and clamping device of the present application. Through the flange, it is convenient to install on the arm of the handling robot. The handling robot moves the clamping device, facilitating the clamping device to clamp and transfer round bar workpieces.

[0027] Embodiment 2

[0028] Please refer to Figure 3 - Figure 4 , the present utility model provides a clamping device for picking round bar workpieces, including a base 1. Two sets of clamping mechanisms are arranged on the lower surface of the base 1. The two sets of clamping mechanisms are respectively used for clamping the two ends of the round bar workpieces. A pneumatic chuck 11 is also arranged at the end of the base 1. The pneumatic chuck 11 is a pneumatic three-jaw chuck, which facilitates the clamping and transfer of round bar workpieces in the vertical state.

[0029] The clamping mechanism includes a base 12. On one side of the bottom end of the base 12, a second fixed clamp block 14 is installed, and the upper surface of the second fixed clamp block 14 is V-shaped. On the other side of the bottom end of the base 12, a second cylinder 13 is rotatably connected through a pin shaft. The telescopic end of the second cylinder 13 is rotatably connected to one end of a second movable clamp block 15. The other end of the second movable clamp block 15 penetrates through the upper end of the base 12 and extends to directly above the second fixed clamp block 14. The middle part of the second movable clamp block 15 is rotatably connected to the upper end of the base 12. The upper surface of the second fixed clamp block 14 is V-shaped, which makes it convenient for the second fixed clamp block 14 to support the bottom of a round bar workpiece and limit the round bar workpiece at the same time. After the telescopic end of the second cylinder 13 extends, it will drive the end of the second movable clamp block 15 away from the second cylinder 13 to move downward to clamp the round bar workpiece, which is convenient for clamping and transferring the round bar workpiece in a horizontal state.

[0030] The first cylinder 6 of one set of clamping mechanisms is installed on the base 1, and the first cylinder 6 of the other set of clamping mechanisms is installed on the slider 4. The slider 4 is driven by a moving mechanism, so that the slider 4 can move along the length direction of the base 1 to adjust the distance between the two sets of clamping mechanisms, which is convenient for clamping round bar workpieces of different lengths and improves the applicability of the device. The moving mechanism includes a motor 2, a lead screw 3 and a guide rail 5. The motor 2 drives the lead screw 3 to rotate through a synchronous belt and a synchronous pulley. Of course, the motor 2 can also drive the lead screw 3 to rotate through a gear transmission. The present application does not make specific limitations. The middle part of the lead screw 3 penetrates through the slider 4 and is threadedly connected thereto. The middle part of the guide rail 5 penetrates through the guide rail 5 and is slidably matched therewith. The lead screw 3 is rotatably connected to the base 1, and the guide rail 5 is fixedly connected to the base 1.

[0031] It should be noted that a flange is installed on the upper surface of the base 1 of the round bar workpiece picking and clamping device of the present application. It is convenient to install on the arm of a handling robot through the flange. The handling robot moves the clamping device, which is convenient for the clamping device to clamp and transfer the round bar workpiece.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0033] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0034] Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Referring to "embodiment" herein means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of this application. The appearance of this phrase at various positions in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art can explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application. Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A clamping device for round bar workpieces, characterized in that: The invention comprises a base (1), wherein the lower surface of the base (1) is provided with two groups of clamping mechanisms, the two groups of clamping mechanisms are respectively used to clamp the two ends of a round bar workpiece, the clamping mechanisms comprise clamping blocks for supporting the outer surface of the round bar workpiece, and a pneumatic chuck (11) is also provided on one side of the base (1).

2. A round bar workpiece material picking device according to claim 1, characterized in that: It also includes a moving mechanism, which is used to adjust the distance between the two groups of clamping mechanisms.

3. A round bar workpiece material picking device according to claim 2, characterized in that: The moving mechanism comprises a screw rod (3) and a guide rail (5), wherein the screw rod (3) is driven to rotate by a motor (2), the middle portion of the screw rod (3) passes through a slider (4) and is threadedly connected thereto, the middle portion of the guide rail (5) passes through the guide rail (5) and is slidably engaged therewith, the screw rod (3) is rotatably connected to the base (1), and the guide rail (5) is fixedly connected to the base (1), one set of clamping mechanisms is mounted on the slider (4), and the other set of clamping mechanisms is mounted on the base (1).

4. A round bar workpiece material picking device according to claim 1, characterized in that: The clamping mechanism comprises a first cylinder (6), the telescopic end of the first cylinder (6) is fixedly connected to a movable plate (8), the end of the first cylinder (6) away from the movable plate (8) is mounted with a fixed plate (7), the fixed plate (7) and the movable plate (8) are respectively mounted with a first fixed clamping block (9) and a first movable clamping block (10) which are arranged opposite to each other, the inner sides of the first fixed clamping block (9) and the first movable clamping block (10) are both in an arc shape which matches the outer surface of the round rod-like workpiece.

5. The round bar workpiece material clamping device according to claim 1, characterized in that: The clamping mechanism comprises a base (12), a second fixed clamping block (14) is installed on one side of the bottom end of the base (12), and a second cylinder (13) is rotatably connected to the other side of the bottom end of the base (12) via a pin shaft, the telescopic end of the second cylinder (13) is rotatably connected to one end of a second movable clamping block (15), the other end of the second movable clamping block (15) penetrates the upper end of the base (12) and extends to the top of the second fixed clamping block (14), and the middle part of the second movable clamping block (15) is rotatably connected to the upper end of the base (12).

6. A round bar workpiece material clamping device according to claim 5, characterized in that: The upper surface of the second fixing clamp block (14) is V-shaped.

7. The round bar workpiece material clamping device according to claim 3, characterized in that: The motor (2) drives the screw rod (3) to rotate via a synchronous belt and a synchronous pulley.

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