Automatic positioning clamp for machining

Abstract

The utility model provides an automatic positioning fixture for machining, which belongs to the technical field of positioning fixtures and comprises a supporting mechanism, a machining table, a transverse groove formed in the surface of the machining table and two vertical grooves formed in the surface of the machining table. And the clamping mechanism comprises a positioning part used for positioning the workpieces and an adjusting part suitable for the workpieces of different sizes, and the positioning part comprises a motor fixedly installed on the surface of the machining table. Through the cooperation between the positioning part and the adjusting part, workpieces of different sizes can be clamped and positioned, the positioning effect of the workpieces is improved, the problem that a traditional positioning clamp is poor in adaptability is solved, the traditional clamp can only position the workpieces of specific shapes and sizes generally, and the positioning precision is high. According to the machining device, various machining requirements cannot be effectively met, the machining device can be flexibly adjusted to adapt to workpieces of different shapes and sizes, the positioning precision is improved, and therefore the overall machining effect and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of positioning fixture technology, specifically relating to an automatic positioning fixture for machining. Background Technology

[0002] Automatic positioning fixtures in machining are devices used to automatically clamp and position workpieces during machining processes, aiming to improve machining accuracy, stability, and efficiency. They achieve rapid and precise positioning and fixation of workpieces through mechanical, hydraulic, pneumatic, or electric drives, and are suitable for workpieces of various shapes and sizes. Automatic positioning fixtures are typically equipped with sensors and control systems that can monitor and adjust clamping force and position in real time to ensure workpiece stability during machining.

[0003] In machining, fixtures are needed to hold and position workpieces to improve stability during the machining process. However, traditional positioning fixtures are usually designed for specific workpieces and are poorly adaptable to workpieces with large differences in shape and size. This results in the workpiece not being effectively positioned, affecting machining stability and causing a decrease in machining accuracy and quality. Utility Model Content

[0004] The purpose of this invention is to provide an automatic positioning fixture for machining, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic positioning fixture for machining includes,

[0007] The support mechanism includes a machining table, a transverse groove formed on the surface of the machining table, and two vertical grooves formed on the surface of the machining table.

[0008] The clamping mechanism includes a positioning component for positioning the workpiece and an adjustment component suitable for workpieces of different sizes.

[0009] As a preferred embodiment of this utility model, the positioning component includes a motor fixedly mounted on the surface of the processing table, a transmission screw fixedly mounted on the output end of the motor, two threaded sleeves threaded onto the transmission screw, and a first clamping plate fixedly mounted on the surface of the threaded sleeves for clamping the workpiece.

[0010] As a preferred embodiment of this utility model, the positioning component further includes two connecting rods fixedly installed on the surface of the threaded sleeve, a transmission rod hinged to the surface of the connecting rods, a connecting hinge rotatably installed between the two transmission rods, and a second clamping plate disposed on the surface of the connecting hinge for clamping the workpiece.

[0011] As a preferred embodiment of this utility model, a guide rail is fixedly installed at the bottom of the processing table, and a slider that cooperates with the guide rail is fixedly installed on the surface of the connecting hinge.

[0012] As a preferred embodiment of this utility model, the surfaces of the first clamping plate and the second clamping plate are respectively provided with grooves, and protective sheets are provided inside the grooves.

[0013] As a preferred embodiment of this utility model, the adjusting component includes a fixed block fixedly installed on the top of the connecting hinge, a movable block slidably installed inside the fixed block, a limiting block fixedly installed on the surface of the movable block, and a drive screw for driving the transmission screw to move.

[0014] As a preferred embodiment of this utility model, the fixed block has a mating groove inside for use with the moving block, and the limiting block is located inside the vertical groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation between the positioning component and the adjustment component, it is possible to clamp and position workpieces of different sizes, improve the positioning effect of the workpiece, and solve the problem of poor adaptability of traditional positioning fixtures. Traditional fixtures can usually only be positioned for workpieces of specific shapes and sizes, and cannot effectively adapt to diverse processing needs. This utility model enables it to be flexibly adjusted to adapt to workpieces of different shapes and sizes, improves the positioning accuracy, and thus improves the overall processing effect and quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.

[0021] In the diagram: 100, Support mechanism; 101, Machining table; 102, Horizontal groove; 103, Vertical groove; 200, Clamping mechanism; 201, Positioning component; 201a, Motor; 201b, Transmission screw; 201c, Threaded sleeve; 201d, First clamping plate; 201e, Connecting rod; 201f, Transmission rod; 201g, Connecting hinge; 201h, Second clamping plate; 201i, Guide rail; 202, Adjusting component; 202a, Fixed block; 202b, Moving block; 202c, Limiting block; 202d, Drive screw. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-4 This is an embodiment of the present invention, which provides an automatic positioning fixture for machining, comprising:

[0027] The support mechanism 100 includes a processing table 101, a transverse groove 102 formed on the surface of the processing table 101, and two vertical grooves 103 formed on the surface of the processing table 101.

[0028] The clamping mechanism 200 includes a positioning component 201 for positioning the workpiece and an adjustment component 202 suitable for workpieces of different sizes.

[0029] The positioning component 201 and the adjusting component 202 work together to clamp and position workpieces of different sizes, improving the positioning effect of the workpieces and solving the problem of poor adaptability of traditional positioning fixtures. Traditional fixtures can usually only position workpieces of specific shapes and sizes and cannot effectively adapt to diverse processing needs. This solution enables the fixtures to be flexibly adjusted to adapt to workpieces of different shapes and sizes, improving positioning accuracy and thus improving the overall processing effect and quality.

[0030] Specifically, the positioning component 201 includes a motor 201a fixedly mounted on the surface of the processing table 101, a transmission screw 201b fixedly mounted on the output end of the motor 201a, two threaded sleeves 201c threaded onto the transmission screw 201b, and a first clamping plate 201d fixedly mounted on the surface of the threaded sleeve 201c for workpiece clamping.

[0031] Among them, motor 201a is a bidirectional threaded rod, which can be used to drive two threaded sleeves 201c to move towards or away from each other.

[0032] Furthermore, the positioning component 201 also includes two connecting rods 201e fixedly mounted on the surface of the threaded sleeve 201c, a transmission rod 201f hinged to the surface of the connecting rods 201e, a connecting hinge 201g rotatably mounted between the two transmission rods 201f, and a second clamping plate 201h disposed on the surface of the connecting hinge 201g and used for workpiece clamping.

[0033] Among them, the included angle formed by the two transmission rods 201f in the direction of approaching the transmission screw 201b is greater than 180 degrees.

[0034] Preferably, a guide rail 201i is fixedly installed on the bottom of the processing table 101, and a slider that is used in conjunction with the guide rail 201i is fixedly installed on the surface of the connecting hinge 201g.

[0035] The slider is engaged with the inner side of the guide rail 201i. The cooperation between the guide rail 201i and the slider is used to limit the movement of the connecting hinge 201g, further improving the stability of the second clamping plate 201h during movement, thereby improving the clamping and positioning effect of the second clamping plate 201h on the workpiece.

[0036] Furthermore, the surfaces of the first clamping plate 201d and the second clamping plate 201h are respectively provided with grooves, and protective plates are provided inside the grooves.

[0037] The protective plate is made of rubber, and the groove is used to install the protective plate. The function of the protective plate is to protect the workpiece when it is clamped and to prevent scratches on the surface of the workpiece.

[0038] Specifically, the adjustment component 202 includes a fixed block 202a fixedly installed on the top of the connecting hinge 201g, a movable block 202b slidably installed inside the fixed block 202a, a limiting block 202c fixedly installed on the surface of the movable block 202b, and a drive screw 202d for driving the transmission screw 201b to move.

[0039] The drive screw 202d drives the moving block 202b to move, the moving block 202b drives the limiting block 202c to move, and then the limiting block 202c drives the second clamping plate 201h to move, so that the two second clamping plates 201h clamp the sides of workpieces of different sizes, which facilitates limiting workpieces of different sizes and improves the applicability of the device.

[0040] Furthermore, the fixed block 202a has a mating groove inside that is used to cooperate with the moving block 202b, and the limiting block 202c is located inside the vertical groove 103.

[0041] The movable block 202b is located inside the mating groove. The size of the movable block 202b is adapted to the size of the mating groove. The fit between the vertical groove 103 and the limiting block 202c can improve the stability of the second clamping plate 201h when it moves.

[0042] In use, the workpiece is placed on the processing table 101, so that the workpiece is located between the two first clamping plates 201d. Under the action of the motor 201a, the transmission screw 201b is driven to rotate. The transmission screw 201b drives the two threaded sleeves 201c to move towards each other. The threaded sleeves 201c then drive the first clamping plates 201d to move, so that the two first clamping plates 201d move towards each other and clamp the workpiece.

[0043] During the movement of the threaded sleeve 201c, the threaded sleeve 201c drives the connecting rod 201e to move, the connecting rod 201e pushes the transmission rod 201f to rotate, and then the transmission rod 201f pushes the two connecting hinges 201g to move towards each other. The two connecting hinges 201g then drive the two second clamping plates 201h to move towards each other and clamp and position the side of the workpiece. If the second clamping plate 201h cannot contact the side of the workpiece or clamps the side of the workpiece in advance, the clamping position of the second clamping plate 201h needs to be adjusted for workpieces of different sizes.

[0044] First, rotate the drive screw 202d, which drives the moving block 202b to move. The moving block 202b then drives the limiting block 202c and the second clamping plate 201h to move, so that the second clamping plate 201h is as far away from the workpiece as possible. This ensures the clamping effect of the first clamping plate 201d on this type of workpiece. Then, the position of the second clamping plate 201h is finely adjusted. Rotate the drive screw 202d again to drive the second clamping plate 201h to be in contact with the side of the workpiece and clamp and position it. At this time, the position of the second clamping plate 201h is the precise position for clamping this type of workpiece. When clamping the workpiece, the first clamping plate 201d and the second clamping plate 201h can simultaneously perform clamping and positioning operations on the workpiece.

[0045] In summary, the cooperation between the positioning component 201 and the adjusting component 202 enables the clamping and positioning of workpieces of different sizes, improves the positioning effect of the workpiece, and solves the problem of poor adaptability of traditional positioning fixtures. Traditional fixtures can usually only be used to position workpieces of specific shapes and sizes, and cannot effectively adapt to diverse processing needs. This solution enables the fixture to be flexibly adjusted to adapt to workpieces of different shapes and sizes, improves positioning accuracy, and thus improves the overall processing effect and quality.

[0046] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0047] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0048] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An automatic positioning fixture for machining, characterized by: include, The support mechanism (100) includes a processing table (101), a transverse groove (102) formed on the surface of the processing table (101), and two vertical grooves (103) formed on the surface of the processing table (101). The clamping mechanism (200) includes a positioning component (201) for positioning the workpiece and an adjustment component (202) suitable for workpieces of different sizes. The positioning component (201) includes a motor (201a) fixedly mounted on the surface of the processing table (101), a transmission screw (201b) fixedly mounted on the output end of the motor (201a), two threaded sleeves (201c) with threads mounted on the transmission screw (201b), and a first clamping plate (201d) fixedly mounted on the surface of the threaded sleeve (201c) for clamping the workpiece. The positioning component (201) further includes two connecting rods (201e) fixedly mounted on the surface of the threaded sleeve (201c), a transmission rod (201f) hinged to the surface of the connecting rod (201e), a connecting hinge (201g) rotatably mounted between the two transmission rods (201f), and a second clamping plate (201h) disposed on the surface of the connecting hinge (201g) and used for workpiece clamping. The adjustment component (202) includes a fixed block (202a) fixedly mounted on the top of the connecting hinge (201g), a movable block (202b) slidably mounted on the inner side of the fixed block (202a), a limiting block (202c) fixedly mounted on the surface of the movable block (202b), and a drive screw (202d) for driving the movable block (202b) to move to adjust the position of the second clamping plate (201h).

2. An automatic positioning fixture for machining according to claim 1, characterized in that: The bottom of the processing table (101) is fixedly equipped with a guide rail (201i), and the surface of the connecting hinge (201g) is fixedly equipped with a slider that works in conjunction with the guide rail (201i).

3. An automatic positioning fixture for machining according to claim 2, characterized in that: The surfaces of the first clamping plate (201d) and the second clamping plate (201h) are respectively provided with grooves, and protective plates are provided inside the grooves.

4. An automatic positioning fixture for machining according to claim 1, characterized in that: The fixed block (202a) has a mating groove inside for use with the moving block (202b), and the limiting block (202c) is located inside the vertical groove (103).

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