Adjustable assembling work auxiliary clamp

Abstract

The utility model discloses an adjustable assembling work auxiliary clamp which comprises a bottom plate and a limiting mechanism. Positioning plates capable of moving leftwards and rightwards are mounted on the upper surface of the bottom plate, positioning grooves are formed in the upper ends of the positioning plates, and the opposite inner side walls of the two positioning grooves are each of an opening structure; the limiting mechanism comprises rotating grooves, rotating columns, limiting rotating plates and torsional springs, the rotating grooves are formed in the upper ends of the inner side walls of the positioning grooves, the limiting rotating plates are rotationally connected into the rotating grooves through the rotating columns, the ends of the outer cambered surfaces of the rotating columns are movably sleeved with the torsional springs, and the ends, away from the limiting rotating plates, of the torsional springs are fixedly connected with the inner walls of the rotating grooves; the adjustable assembly work auxiliary clamp can be adjusted according to different lengths of assembly work pieces, the application range of the assembly work auxiliary clamp is widened, the assembly work pieces with different widths are automatically and accurately limited, the time needed for using the assembly work auxiliary clamp is shortened, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary clamps, in particular to an adjustable auxiliary clamp for assembly work. Background Art

[0002] Auxiliary fixtures are devices used to fix processing objects or automobile parts in the process of mechanical manufacturing and automobile maintenance to ensure that they are in the correct position. These fixtures realize their functions through various components, such as positioning components, clamping devices, tool guide components, indexing devices, etc. They are designed to quickly, conveniently and safely install workpieces or parts to ensure the smooth progress of processing or maintenance work. When assembling the workpiece, in order to facilitate the smooth progress of assembly, auxiliary fixtures need to be used to determine the position of the assembled workpiece; in the prior art, when using the auxiliary fixture, it is necessary to place the assembled workpiece in the positioning groove of the fixture, and use the positioning groove of the positioning fixture to limit the position of the assembled workpiece, and then determine the position of the assembled workpiece, but the positioning groove of some auxiliary fixtures is fixed in size and can only limit the position of assembly workpieces of a single size, and the scope of application is relatively small. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide an adjustable assembly work auxiliary clamp that can be adjusted according to the different lengths of the assembly workpiece, thereby improving the applicability of the assembly work auxiliary clamp, automatically and accurately limiting assembly workpieces of different widths, and reducing the time required for the use of the assembly work auxiliary clamp, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the present utility model provides the following technical solutions: an adjustable auxiliary fixture for assembly work, comprising a base plate and a limiting mechanism;

[0005] Bottom plate: The upper surface of the bottom plate is respectively provided with positioning plates that can move left and right. The upper ends of the positioning plates are provided with positioning grooves, and the inner side walls of the two positioning grooves are both open structures.

[0006] The limiting mechanism includes a rotating groove, a rotating column, a limiting rotating plate and a torsion spring. The rotating grooves are respectively arranged at the upper end of the inner side wall of the positioning groove. The inside of the rotating groove is rotatably connected to the limiting rotating plate through the rotating column. The end of the outer arc surface of the rotating column is movably sleeved with a torsion spring. The end of the torsion spring away from the limiting rotating plate is fixedly connected to the inner wall of the rotating groove, and the other end of the torsion spring is fixedly connected to the limiting rotating plate. It can be adjusted according to the different lengths of the assembly workpiece, thereby improving the applicability of the auxiliary clamp for assembly work, automatically limiting assembly workpieces of different widths, reducing the time required for the use of the auxiliary clamp for assembly work, and making it more convenient to use.

[0007] Furthermore, the limiting mechanism also includes a limiting frame plate and an electric push rod, and the electric push rods are respectively arranged in the mounting holes of the bottom wall of the positioning groove. A limiting frame plate is provided between the upper ends of the telescopic ends of the two electric push rods located in the same positioning groove. The limiting frame plate is installed in cooperation with the limiting rotating plate. A single-chip microcomputer is provided on the surface of the bottom plate, and the input end of the single-chip microcomputer is electrically connected to the external power supply. The input end of the electric push rod is electrically connected to the output end of the single-chip microcomputer to limit the inclination angle of the limiting rotating plate.

[0008] Furthermore, the limiting mechanism also includes limiting plates, which are respectively arranged between the front and rear inner walls of the positioning groove to limit the vertical position of the assembled workpiece.

[0009] Furthermore, support plates are provided at both left and right ends of the upper surface of the base plate, and guide columns are provided between the two support plates. The guide columns are connected to the guides on the surface of the positioning plate in a transverse sliding manner to provide guide support for the movement of the positioning plate.

[0010] Furthermore, it also includes an adjusting screw, which is rotatably connected between the two support plates. The thread directions of the left and right ends of the adjusting screw are opposite. The screw holes in the middle of the positioning plate are threadedly connected to the adjusting screw. A handwheel is provided at the left end of the adjusting screw to adjust the distance between the two positioning plates.

[0011] Furthermore, a scale plate is provided on the upper surface of the base plate, and the scale plate is installed in conjunction with the positioning plate to facilitate determination of the distance between the two positioning plates.

[0012] Furthermore, a non-slip rubber pad is provided on the lower surface of the bottom plate, so that the entire device can be placed more stably on the table.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the adjustable assembly work auxiliary fixture has the following advantages:

[0014] According to the size of the assembly workpiece, the distance between the two positioning plates is adjusted, and then the assembly workpiece is placed between the two positioning grooves. Under the torsion force of the torsion spring, the assembly workpieces of different widths are automatically limited. Under the push of the limit frame plate, the limit rotating plate limits the assembly workpiece more accurately. It can be adjusted according to the different lengths of the assembly workpiece, thereby improving the applicability of the auxiliary fixture for assembly work, automatically limiting the assembly workpieces of different widths, reducing the time required for the use of the auxiliary fixture for assembly work, and making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the side cross-section of the overall device of the utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A of the present invention.

[0018] In the figure: 1 base plate, 2 positioning plate, 3 positioning groove, 4 limit mechanism, 41 rotating groove, 42 rotating column, 43 limit rotating plate, 44 torsion spring, 45 limit frame plate, 46 electric push rod, 47 limit plate, 5 support plate, 6 guide column, 7 adjusting screw, 8 hand wheel, 9 single chip microcomputer, 10 scale plate, 11 anti-slip rubber pad. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 , this embodiment provides a technical solution: an adjustable assembly work auxiliary fixture, including a base plate 1 and a limiting mechanism 4;

[0021] The bottom plate 1: The upper surface thereof is respectively provided with a positioning plate 2 which can be moved left and right. The upper end of the positioning plate 2 is provided with a positioning groove 3. The relative inner side walls of the two positioning grooves 3 are both open structures. The assembled workpiece is placed between the inner walls of the two positioning grooves 3. The position of the assembled workpiece is clamped and limited by the cooperation of the positioning plate 2 and the positioning groove 3. The left and right ends of the upper surface of the bottom plate 1 are provided with support plates 5. A guide column 6 is provided between the two support plates 5. The guide column 6 is connected to the guide transverse sliding connection of the surface of the positioning plate 2 to provide a guide support for the movement of the positioning plate 2. It also includes an adjusting screw 7, which is rotatably connected between the two support plates 5. The thread directions of the left and right ends of the adjusting screw 7 are opposite, and the screw holes in the middle of the positioning plate 2 are opposite. The adjusting screw 7 is threadedly connected, and a handwheel 8 is provided at the left end of the adjusting screw 7. The adjusting screw 7 is rotated by the handwheel 8, and the threaded connection between the adjusting screw 7 and the positioning plate 2 is adjusted. Under the guide support of the guide column 6, the positioning plate 2 is driven to move left and right. Because the thread directions of the left and right ends of the adjusting screw 7 are opposite, the movement directions of the two positioning plates 2 are opposite. The spacing between the two positioning plates 2 is adjusted to adapt to workpieces of different lengths. A scale plate 10 is provided on the upper surface of the base plate 1. The scale plate 10 is installed in conjunction with the positioning plate 2 to facilitate determination of the spacing between the two positioning plates 2. An anti-slip rubber pad 11 is provided on the lower surface of the base plate 1 to increase the friction between the base plate 1 and the placement plane, making the position of the overall device more stable.

[0022] The limiting mechanism 4 includes a rotating groove 41, a rotating column 42, a limiting rotating plate 43 and a torsion spring 44. The rotating grooves 41 are respectively arranged at the upper end of the inner side wall of the positioning groove 3. The interior of the rotating groove 41 is rotatably connected to the limiting rotating plate 43 through the rotating column 42. The outer arc surface end of the rotating column 42 is movably sleeved with a torsion spring 44. The end of the torsion spring 44 away from the limiting rotating plate 43 is fixedly connected to the inner wall of the rotating groove 41, and the other end of the torsion spring 44 is fixedly connected to the limiting rotating plate 43. When the workpiece enters the positioning groove 3, the workpiece exerts a downward force on the limit rotating plate 43, overcoming the torsion force of the torsion spring 44 and pushing the limit rotating plate 43 to rotate around the rotating column 42. When the lower surface of the workpiece contacts the limit plate 47, the workpiece stops moving. At this time, under the torsion force of the torsion spring 44, the limit rotating plate 43 exerts a force on the side of the workpiece to limit the position of the workpiece. The limiting mechanism 4 also includes a limiting frame plate 45 and an electric push rod 46. The rods 46 are respectively arranged in the mounting holes of the bottom wall of the positioning groove 3, and a limit frame plate 45 is provided between the upper ends of the telescopic ends of the two electric push rods 46 located in the same positioning groove 3. The limit frame plate 45 is installed in conjunction with the limit rotating plate 43. The limit frame plate 45 is an open structure at one end close to the assembly workpiece, providing a space for the placement of the assembly workpiece. A single-chip microcomputer 9 is provided on the surface of the bottom plate 1, and the input end of the single-chip microcomputer 9 is electrically connected to the external power supply. The input end of the electric push rod 46 is electrically connected to the output end of the single-chip microcomputer 9. The electric push rod 46 is started by the single-chip microcomputer 9, and the telescopic end of the electric push rod 46 drives the limit frame plate 45 to move upward. The limit frame plate 45 is used to apply an upward thrust to the lower end of the limit rotating plate 43 to limit the inclination angle of the limit rotating plate 43, so that the workpiece is limited more accurately. The limiting mechanism 4 also includes a limit plate 47, which is respectively arranged between the front and rear inner walls of the positioning groove 3 to limit the upper and lower positions of the assembly workpiece.

[0023] The working principle of the adjustable assembly auxiliary clamp provided by the present invention is as follows: when assembling a workpiece, the adjusting screw 7 is rotated by the hand wheel 8 according to the size of the assembled workpiece. The adjusting screw 7 is connected to the threaded connection of the positioning plate 2, and the positioning plate 2 is driven to move left and right under the guidance and support of the guide column 6. Because the thread directions of the left and right ends of the adjusting screw 7 are opposite, the movement directions of the two positioning plates 2 are opposite, and the spacing between the two positioning plates 2 is adjusted to adapt to workpieces of different lengths. After the adjustment is completed, the workpiece is placed between the two positioning grooves 3. During the placement process, the workpiece applies a downward force to the limit rotating plate 43 to overcome the torsion of the torsion spring 44 , pushing the limit rotating plate 43 to rotate around the rotating column 42. When the lower surface of the workpiece contacts the limit plate 47, the workpiece stops moving. At this time, under the torsion of the torsion spring 44, the limit rotating plate 43 applies a force to the side of the workpiece to limit the position of the workpiece. Then, the electric push rod 46 is started by the single-chip microcomputer 9. The telescopic end of the electric push rod 46 drives the limit frame plate 45 to move upward, and the limit frame plate 45 is used to apply an upward thrust to the lower end of the limit rotating plate 43 to limit the inclination angle of the limit rotating plate 43, so that the workpiece is limited more accurately. It is suitable for limiting workpieces of different sizes. After the position of the workpiece is located, the overall device is used to assist in assembling the workpiece.

[0024] It is worth noting that the single chip microcomputer 9 disclosed in the above embodiment can be a single chip microcomputer of the AT89C4051 model, and the electric push rod 46 can be freely configured according to the actual application scenario. It is recommended to use a LAM1 model electric push rod. The single chip microcomputer 9 controls the operation of the electric push rod 46 using methods commonly used in the prior art.

[0025] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable assembly work auxiliary fixture, characterized by: It comprises a base plate (1) and a limiting mechanism (4); Bottom plate (1): Positioning plates (2) movable left and right are respectively installed on its upper surface, and positioning grooves (3) are respectively provided at the upper ends of the positioning plates (2), and the opposite inner side walls of the two positioning grooves (3) are both open structures; The limiting mechanism (4) comprises a rotating groove (41), a rotating column (42), a limiting rotating plate (43) and a torsion spring (44). The rotating grooves (41) are respectively arranged at the upper end of the inner side wall of the positioning groove (3). The interior of the rotating groove (41) is rotatably connected to the limiting rotating plate (43) through the rotating column (42). The outer arc surface end of the rotating column (42) is movably sleeved with a torsion spring (44). One end of the torsion spring (44) away from the limiting rotating plate (43) is fixedly connected to the inner wall of the rotating groove (41), and the other end of the torsion spring (44) is fixedly connected to the limiting rotating plate (43).

2. The adjustable assembly auxiliary fixture according to claim 1, characterized in that: The limiting mechanism (4) further comprises a limiting frame plate (45) and an electric push rod (46), wherein the electric push rods (46) are respectively arranged in the mounting holes of the bottom wall of the positioning groove (3), and a limiting frame plate (45) is provided between the upper ends of the telescopic ends of the two electric push rods (46) located in the same positioning groove (3), and the limiting frame plate (45) is installed in conjunction with the limiting rotating plate (43). A single-chip microcomputer (9) is provided on the surface of the bottom plate (1), and the input end of the single-chip microcomputer (9) is electrically connected to the external power supply, and the input end of the electric push rod (46) is electrically connected to the output end of the single-chip microcomputer (9).

3. The adjustable assembly auxiliary fixture according to claim 1, characterized in that: The limiting mechanism (4) further comprises a limiting plate (47), and the limiting plates (47) are respectively arranged between the front and rear inner walls of the positioning groove (3).

4. The adjustable assembly auxiliary fixture according to claim 1, characterized in that: Support plates (5) are provided at both left and right ends of the upper surface of the base plate (1), and guide columns (6) are provided between the two support plates (5). The guide columns (6) are connected to the guides on the surface of the positioning plate (2) in a transverse sliding manner.

5. The adjustable assembly auxiliary fixture according to claim 4, characterized in that: The adjusting screw (7) is also included. The adjusting screw (7) is rotatably connected between the two support plates (5). The thread directions of the left and right ends of the adjusting screw (7) are opposite. The screw holes in the middle of the positioning plate (2) are all threadedly connected to the adjusting screw (7). The left end of the adjusting screw (7) is provided with a hand wheel (8).

6. The adjustable assembly auxiliary fixture according to claim 1, characterized in that: A scale plate (10) is provided on the upper surface of the base plate (1), and the scale plate (10) is mounted in conjunction with the positioning plate (2).

7. The adjustable assembly auxiliary fixture according to claim 1, characterized in that: The lower surface of the bottom plate (1) is provided with an anti-slip rubber pad (11).

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