Flexible clamp with positioning function

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a flexible clamp with a positioning function, which comprises a driving mechanism, two clamping arms, a first clamping mechanism, a second clamping mechanism, a first positioning mechanism and a second positioning mechanism, the two clamping arms are connected with the output end of the driving mechanism and can be driven by the driving mechanism to be close to or away from each other. The clamping arm is provided with clamping ends, and the first clamping mechanism and the second clamping mechanism are arranged at the corresponding clamping ends and are oppositely arranged. When an object is clamped, the first clamping mechanism and the second clamping mechanism make contact with the object together and clamp the object. During clamping, the first positioning mechanism and the second positioning mechanism are close to each other and form a positioning groove used for clamping an object. The clamping device can adapt to cylindrical objects with different diameters and provide stable clamping force, so that the objects are effectively prevented from swinging in the machining process.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a flexible clamp with a positioning function. Background Art

[0002] In the field of automated manufacturing and precision machining, the application of flexible fixtures with positioning functions is becoming more and more widespread, and their design and performance directly affect production efficiency and product quality. However, existing flexible fixtures with positioning functions have obvious shortcomings when clamping cylindrical objects. These fixtures are usually designed to handle flat or regularly shaped objects, but are not effective in fixing cylindrical objects. During the clamping process, cylindrical objects are prone to swinging due to the lack of stable support points, which not only affects the machining accuracy, but also may cause safety hazards during the machining process.

[0003] To address this problem, the traditional clamping needle design needs to be improved. Existing clamping needles usually adopt a single clamping method, which cannot adapt to the curve characteristics of cylindrical objects. When clamping cylindrical objects, the contact area of ​​the clamping needle is limited, resulting in uneven distribution of clamping force, making it easy for the cylindrical object to rotate or slide during the clamping process. In addition, the existing clamping needle lacks sufficient flexibility in design and cannot be adjusted accordingly according to the diameter of the cylindrical object, further limiting its scope of application. Utility Model Content

[0004] The utility model aims to provide a flexible clamp with a positioning function, aiming to solve the technical problem that a single clamping method is usually adopted in the prior art, and a cylindrical object is prone to rotation or sliding during the clamping process.

[0005] To achieve the above-mentioned purpose, an embodiment of the utility model provides a flexible clamp with a positioning function, comprising a driving mechanism, two clamping arms, a first clamping mechanism, a second clamping mechanism, a first positioning mechanism and a second positioning mechanism; the two clamping arms are respectively connected to the output end of the driving mechanism, and driven by the driving mechanism, the two clamping arms can approach and move away from each other; the clamping arm has a clamping end, and the first clamping mechanism and the second clamping mechanism are respectively arranged on the corresponding clamping end and arranged opposite to each other; when clamping an object, the first clamping mechanism and the second clamping mechanism jointly contact the object and clamp the object; the first positioning mechanism is arranged on the first clamping mechanism, and the second positioning mechanism is arranged on the second clamping mechanism; when clamping, the first positioning mechanism and the second positioning mechanism approach each other and form a positioning groove for clamping the object.

[0006] Optionally, the first positioning mechanism and the second positioning mechanism both include a positioning plate, a mounting plate and an elastic member; the mounting plate is installed at the upper and lower ends of the corresponding first positioning mechanism and the second positioning mechanism; the positioning plate is slidably connected to the mounting plate; one end of the elastic member is connected to the corresponding first positioning mechanism and the second positioning mechanism, and the other end is connected to the positioning plate; a positioning notch is provided on the side of the positioning plate facing away from the clamping arm.

[0007] Optionally, there are multiple positioning notches.

[0008] Optionally, a sliding hole is provided on the mounting plate, and the sliding hole extends along the width direction of the mounting plate; a positioning piece is provided on the positioning plate, and the positioning piece is positioned in the sliding hole.

[0009] Optionally, the first clamping mechanism and the second clamping mechanism both include a fixed seat, a clamping frame and a plurality of clamping needle assemblies; the fixed seat is connected to the clamping arm, a sink groove is provided in the fixed seat, each of the clamping needle assemblies is arranged in a matrix in the sink groove, and one end of each of the clamping needle assemblies extends out of the sink groove; the clamping frame is arranged at one end of the fixed seat facing away from the clamping arm, and is used to clamp objects.

[0010] Optionally, one side of the clamping frame is provided with adhesive, and the adhesive is used to fix the clamped object.

[0011] Optionally, the clamping frame includes four horizontal plates and a partition plate; the four horizontal plates are connected end to end to form a rectangle; the partition plate is located in the middle of the rectangle formed by the four horizontal plates, and divides each clamping needle assembly into two layers, upper and lower layers.

[0012] Optionally, each of the clamping needle assemblies includes a clamping needle, a compression spring and a guide column; the compression spring is arranged in the clamping needle; one end of the guide column is connected to the fixing seat, and the other end extends into the clamping needle and is connected to the compression spring.

[0013] Optionally, the driving mechanism is a bidirectional cylinder.

[0014] The above one or more technical solutions in the flexible clamp with positioning function provided by the embodiment of the utility model have at least one of the following technical effects: the flexible clamp with positioning function of the utility model can adapt to cylindrical objects of different diameters, provide stable clamping force, and effectively prevent the object from swinging during processing. And the clamping force is evenly distributed to ensure the stability of the cylindrical object during the clamping process; through the positioning groove, it can adapt to cylindrical objects of different sizes; through these improvements, the flexible clamp with positioning function of the present application improves the efficiency and safety of the automated production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic structural diagram of a flexible clamp with a positioning function provided in an embodiment of the utility model.

[0017] Figure 2 A schematic structural diagram of a first clamping mechanism and a first positioning mechanism provided in an embodiment of the utility model.

[0018] Figure 3 for Figure 2 A cross-sectional view from another perspective.

[0019] Figure 4 A schematic diagram of the structure of the first positioning mechanism and the second positioning mechanism provided in an embodiment of the utility model in a contact state.

[0020] Among them, the reference numerals in the figure are:

[0021] 1—positioning slot 10—driving mechanism 20—clamping arm

[0022] 30 - first clamping mechanism 31 - fixed seat 32 - clamping needle assembly

[0023] 40—Second clamping mechanism 50—First positioning mechanism 51—Positioning plate

[0024] 52 - mounting plate 53 - elastic member 54 - positioning member

[0025] 60—Second positioning mechanism 70—Clamping end 80—Clamping frame

[0026] 321-pin clamp 322-compression spring 323-guide post

[0027] 511—positioning notch 521—sliding hole. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present invention in detail, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. Figures 1 to 4 The described embodiments are exemplary and are intended to be used to explain the embodiments of the present invention, but should not be construed as limiting the present invention.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] In one embodiment of the present invention, Figures 1 to 4 As shown, a flexible clamp with a positioning function is provided, comprising a driving mechanism 10, two clamping arms 20, a first clamping mechanism 30, a second clamping mechanism 40, a first positioning mechanism 50 and a second positioning mechanism 60; the two clamping arms 20 are respectively connected to the output ends of the driving mechanism 10, and driven by the driving mechanism 10, the two clamping arms 20 can approach and move away from each other; the clamping arm 20 has a clamping end 70, and the first clamping mechanism 30 and the second clamping mechanism 40 are respectively arranged on the corresponding clamping end 70 and arranged opposite to each other; when clamping an object, the first clamping mechanism 30 and the second clamping mechanism 40 contact the object together and clamp the object; the first positioning mechanism 50 is arranged on the first clamping mechanism 30, and the second positioning mechanism 60 is arranged on the second clamping mechanism 40; when clamping, the first positioning mechanism 50 and the second positioning mechanism 60 approach each other and form a positioning groove 1 for clamping the object.

[0033] When in use, the driving mechanism 10 drives the two clamping arms 20 to approach each other, and the two clamping arms 20 drive the first clamping mechanism 30 and the second clamping mechanism 40 to approach each other and clamp the object. During the clamping process, the first clamping mechanism 30 and the second clamping mechanism 40 are deformed to achieve flexible clamping. In addition, during the clamping process, since the first positioning mechanism 50 is arranged at the upper and lower ends of the first clamping mechanism 30, and the second positioning mechanism 60 is arranged at the upper and lower ends of the second clamping mechanism 40, the first positioning mechanism 50 and the second positioning mechanism 60 are close to each other and the positioning groove 1 formed can position the two ends of the cylindrical object so that it will not rotate during the clamping process. According to the size of the positioning groove 1, cylindrical objects of different diameters can be accommodated.

[0034] The flexible clamp with positioning function of the utility model can adapt to cylindrical objects of different diameters, provide stable clamping force, and effectively prevent the object from swinging during processing. The clamping force is evenly distributed to ensure the stability of the cylindrical object during the clamping process; through the positioning groove 1, it can adapt to cylindrical objects of different sizes; through these improvements, the flexible clamp with positioning function of the application improves the efficiency and safety of the automated production line.

[0035] In this embodiment, the first positioning mechanism 50 and the second positioning mechanism 60 each include a positioning plate 51, a mounting plate 52 and an elastic member 53; the mounting plate 52 is mounted on the upper and lower ends of the corresponding first positioning mechanism 50 and the second positioning mechanism 60; the positioning plate 51 is slidably connected to the mounting plate 52; one end of the elastic member 53 is connected to the corresponding first positioning mechanism 50 and the second positioning mechanism 60, and the other end is connected to the positioning plate 51; a positioning notch 511 is provided on the side of the positioning plate 51 that is away from the clamping arm 20. Specifically, the mounting plate 52 is mounted on the upper and lower ends of the first positioning mechanism 50 and the second positioning mechanism 60; one end of the positioning plate 51 provided with the positioning notch 511 extends out of the clamping surface of the clamping mechanism, so that it can be ensured that during the clamping process, the two positioning plates 51 can contact each other, and the positioning groove 1 is formed through the corresponding positioning notch 511, thereby positioning the cylindrical object. The elastic member 53 provided can generate elastic force during the clamping process, and generate a flexible clamping force on the clamped object.

[0036] Furthermore, the elastic member 53 is preferably a spring.

[0037] In this embodiment, the positioning notch 511 is arranged in a V shape. Specifically, the positioning notch 511 is arranged in a V shape, and can adapt to cylindrical objects of various diameters through one notch, and has strong adaptability.

[0038] In this embodiment, there are multiple positioning notches 511. Specifically, there are multiple positioning notches 511, and the sizes of the positioning notches 511 can be set to be different, so that more cylindrical objects with different diameters can be clamped.

[0039] In this embodiment, the mounting plate 52 is provided with a sliding hole 521, which extends along the width direction of the mounting plate 52; the positioning plate 51 is provided with a positioning member 54, which is positioned in the sliding hole 521. Specifically, the direction in which the sliding hole 521 extends is the direction in which the clamping arm 20 moves. By setting the sliding hole 521 and the positioning member 54, the positioning plate 51 can be positioned to ensure that the positioning plate 51 can slide without falling off the mounting plate 52 due to the sliding stroke problem. In addition, the sliding hole 521 can play the role of a sliding guide, ensuring that the positioning plate 51 moves stably when it is forced to move the compressed elastic member 53 or when it is subjected to the elastic force of the elastic member 53.

[0040] In this embodiment, the positioning member 54 is a screw. Specifically, the positioning member 54 is preferably a screw, so that the connection with the mounting plate 52 is simple, and the disassembly is also easy, which is convenient for maintenance.

[0041] In this embodiment, the first clamping mechanism 30 and the second clamping mechanism 40 each include a fixed seat 31, a clamping frame 80 and a plurality of clamping needle assemblies 32; the fixed seat 31 is connected to the clamping arm 20, a sink groove is provided in the fixed seat 31, each clamping needle assembly 32 is arranged in a matrix in the sink groove, and one end of each clamping needle assembly 32 extends out of the sink groove; the clamping frame 80 is arranged at one end of the fixed seat 31 facing away from the clamping arm 20, and is used to clamp an object. Specifically, the fixed seat 31 is used to fix each clamping needle assembly 32, and can protect the clamping needle assembly 32. The depth of the sink groove is less than the length of the clamping needle assembly 32. The object is fixed by the clamping frame 80.

[0042] Furthermore, one side of the clamping frame 80 is provided with adhesive, and the adhesive is used to fix the clamped object. The clamping frame 80 includes four horizontal plates and a partition plate; the four horizontal plates are connected end to end to form a rectangle; the partition plate is located in the middle of the rectangle formed by the four horizontal plates, and divides each clamping needle assembly into two layers. Specifically, the object is fixed by adhesive.

[0043] In this embodiment, each clamping needle assembly 32 includes a clamping needle 321, a compression spring 322 and a guide post 323; the compression spring 322 is disposed in the clamping needle 321; one end of the guide post 323 is connected to the fixing seat 31, and the other end extends into the clamping needle 321 and is connected to the compression spring 322. Specifically, one end of the compression spring 322 is connected to the clamping needle 321, and the other end is connected to the guide post 323; one end of the clamping needle 321 has an opening for the guide post 323 to extend therein, and the clamping needle 321 can slide relative to the guide post 323.

[0044] In this embodiment, the fixing seat 31 is connected to the clamping arm 20 by screws. Specifically, the fixing seat 31 and the clamping arm 20 are reliably connected by the screws, and the fixing seat 31 and the clamping arm 20 are convenient for disassembly and maintenance.

[0045] In this embodiment, the driving mechanism 10 is a bidirectional cylinder. Specifically, the driving mechanism 10 is preferably a bidirectional cylinder, and the two clamping arms 20 are respectively connected to the two output ends of the bidirectional cylinder, which has a simple structure and can realize the movement of the clamping arms 20 toward each other.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flexible fixture with positioning function, characterized in that: A driving mechanism, two clamping arms, a first clamping mechanism, a second clamping mechanism, a first positioning mechanism and a second positioning mechanism; the two clamping arms are respectively connected to the output ends of the driving mechanism, and driven by the driving mechanism, the two clamping arms can approach and move away from each other; the clamping arms have clamping ends, and the first clamping mechanism and the second clamping mechanism are respectively arranged on the corresponding clamping ends and arranged opposite to each other; when clamping an object, the first clamping mechanism and the second clamping mechanism jointly contact the object and clamp the object; the first positioning mechanism is arranged on the first clamping mechanism, and the second positioning mechanism is arranged on the second clamping mechanism; when clamping, the first positioning mechanism and the second positioning mechanism approach each other and form a positioning groove for clamping the object.

2. The flexible clamp with positioning function according to claim 1, characterized in that: The first positioning mechanism and the second positioning mechanism each include a positioning plate, a mounting plate and an elastic member; the mounting plate is mounted on the upper and lower ends of the corresponding first positioning mechanism and the second positioning mechanism; the positioning plate is slidably connected to the mounting plate; one end of the elastic member is connected to the corresponding first positioning mechanism and the second positioning mechanism, and the other end is connected to the positioning plate; a positioning notch is provided on the side of the positioning plate facing away from the clamping arm.

3. The flexible clamp with positioning function according to claim 2, characterized in that: The number of the positioning notches is multiple.

4. The flexible clamp with positioning function according to claim 2, characterized in that: The mounting plate is provided with a sliding hole, and the sliding hole extends along the width direction of the mounting plate; the positioning plate is provided with a positioning piece, and the positioning piece is positioned in the sliding hole.

5. The flexible clamp with positioning function according to claim 1, characterized in that: The first clamping mechanism and the second clamping mechanism both include a fixed seat, a clamping frame and a plurality of clamping needle assemblies; the fixed seat is connected to the clamping arm, a sink groove is provided in the fixed seat, each of the clamping needle assemblies is arranged in a matrix in the sink groove, and one end of each of the clamping needle assemblies extends out of the sink groove; the clamping frame is arranged at one end of the fixed seat facing away from the clamping arm, and is used to clamp objects.

6. The flexible clamp with positioning function according to claim 5, characterized in that: One side of the clamping frame is provided with adhesive, and the adhesive is used to fix the clamped object.

7. The flexible clamp with positioning function according to claim 5, characterized in that: The clamping frame includes four horizontal plates and a partition plate; The four horizontal plates are connected end to end to form a rectangle; the partition is located in the middle of the rectangle formed by the four horizontal plates, and divides each of the clamping needle components into two layers, an upper layer and a lower layer.

8. The flexible clamp with positioning function according to claim 5, characterized in that: Each of the clamping needle assemblies comprises a clamping needle, a compression spring and a guide column; the compression spring is arranged in the clamping needle; one end of the guide column is connected to the fixing seat, and the other end extends into the clamping needle and is connected to the compression spring.

9. The flexible clamp with positioning function according to claim 1, characterized in that: The driving mechanism is a bidirectional cylinder.

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