Self-adaptive positioning clamp

Abstract

The utility model discloses a self-adaptive positioning clamp which comprises an assembly bottom plate, four clamping plates are arranged on the assembly bottom plate, the self-adaptive positioning clamp further comprises an adaptive assembly which is arranged on the assembly bottom plate and used for enabling the four clamping plates to adapt to the inclined surface of a workpiece, and the adaptive assembly comprises an installation pipe fixedly connected to the assembly bottom plate. The side, away from the assembling bottom plate, of the installing pipe is connected with an installing plate through a driving assembly, the installing plate is provided with an installing rod, the end, close to the assembling bottom plate, of the installing rod is rotationally connected with a rotating ball, and the side, away from the installing plate, of the rotating ball is connected with a clamping plate through a connecting rod. Through the arrangement of the adapting assembly, the clamping plate automatically adapts to the inclination of the surface of the workpiece, so that the clamping plate does not need to be repeatedly mounted and dismounted while the positioning firmness of the workpiece is ensured, the positioning efficiency of the workpiece is improved, and the positioning cost of the workpiece is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures and tooling, and in particular relates to an adaptive positioning fixture. Background Art

[0002] During the workpiece assembly process, in order to improve the quality of workpiece assembly, the workpiece will be placed on an assembly base for positioning and fixing. During the fixing process, due to differences in the process of different workpieces, some workpiece surfaces will have inclined surfaces with different degrees of inclination. Therefore, in order to adapt to the positioning surface of the workpiece, the firmness of the workpiece positioning will be ensured by replacing the splints with different inclinations. The replacement of splints with different inclinations not only involves repeated installation and disassembly, but also requires the preparation of multiple splints with different inclinations, which reduces the efficiency of the workpiece station and increases the cost of workpiece positioning.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] An adaptive positioning fixture includes an assembly base plate, four clamping plates are provided on the assembly base plate, and an adaptation component is provided on the assembly base plate for making the four clamping plates adapt to the inclined surface of a workpiece;

[0006] The adaptation component includes a mounting tube fixedly connected to the assembly base plate, and the side of the mounting tube away from the assembly base plate is connected to the mounting plate through a driving component. The mounting plate is provided with a mounting rod, and the end of the mounting rod close to the assembly base plate is rotatably connected to a rotating ball, and the side of the rotating ball away from the mounting plate is connected to the splint through a connecting rod.

[0007] As a preferred solution, the driving assembly includes a push rod motor arranged at the bottom of the mounting tube, the output end of the push rod motor is connected to the driving plate, a driving hole is opened on the side of the mounting tube away from the assembly base plate, and the driving hole is connected to the driving rod through a rotating assembly, one end of the driving rod is connected to the driving plate, and the other end of the driving rod is connected to the mounting plate.

[0008] As a preferred solution, the rotating assembly includes a push rod fixedly connected to the inner wall of the driving hole, the push rod has a rounded corner on one end close to the driving rod, the side wall of the driving rod is provided with a first straight groove, a spiral groove and a second straight groove, the spiral groove is connected to the first straight groove and the second straight groove, and the push rod slides on the first straight groove, the spiral groove and the second straight groove at one end away from the driving hole.

[0009] As a preferred solution, the four clamps are provided with an adjustment component for adjusting the positioning surface, the adjustment component includes an adjustment hole opened in the clamp, sliding plates are slidably connected on both sides of the adjustment hole, and the ends of the two sliding plates away from each other are fixedly connected to the adjustment plate.

[0010] As a preferred solution, the adjustment plate and the side of the clamping plate close to the workpiece are arranged at the same height.

[0011] As a preferred solution, the four clamping plates are threadedly connected with two bolts, and one end of the two bolts is arranged to abut against the side wall of the sliding plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The utility model adapts to the setting of the component so that the clamping plate automatically adapts to the inclination of the workpiece surface, thereby ensuring the firm positioning of the workpiece without the need for repeated installation and disassembly of the clamping plate, thereby improving the efficiency of workpiece positioning and reducing the cost of workpiece positioning.

[0014] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In the attached figure:

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the adapting assembly, driving assembly and rotating assembly of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the adjustment component of the present utility model.

[0019] In the figure: 101, assembly base; 102, clamping plate; 201, mounting tube; 202, mounting plate; 203, mounting rod; 204, rotating ball; 205, connecting rod; 301, push rod motor; 302, driving plate; 303, driving rod; 304, driving hole; 401, push rod; 402, first straight groove; 403, spiral groove; 404, second straight groove; 501, adjustment hole; 502, sliding plate; 503, adjustment plate; 6, bolt. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in this embodiment of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiment is only a preferred embodiment of the present invention.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0023] See also Figure 1-Figure 3 , an adaptive positioning fixture shown in the figure includes an assembly base 101, four clamping plates 102 are provided on the assembly base 101, and an adaptation component provided on the assembly base 101 for making the four clamping plates 102 adapt to the inclined surface of the workpiece;

[0024] The adaptable assembly includes a mounting tube 201 fixedly connected to the assembly base 101. The mounting tube 201 and the assembly base 101 are detachably connected, so that the installation position of the mounting tube 201 can be adjusted according to the specific size of the workpiece. The side of the mounting tube 201 away from the assembly base 101 is connected to the mounting plate 202 through a driving assembly. The mounting plate 202 is provided with a mounting rod 203. The end of the mounting rod 203 close to the assembly base 101 is rotatably connected to a rotating ball 204. The side of the rotating ball 204 away from the mounting plate 202 is connected to the clamping plate 102 through a connecting rod 205.

[0025] It should be noted here that: by adapting the setting of the component, the clamp 102 automatically adapts to the inclination of the workpiece surface, thereby ensuring the firm positioning of the workpiece without the need for repeated installation and disassembly of the clamp 102, thereby improving the efficiency of workpiece positioning and reducing the cost of workpiece positioning.

[0026] See also Figure 2The driving assembly shown in the figure includes a push rod motor 301 arranged at the bottom of the mounting tube 201. The output end of the push rod motor 301 is connected to the driving plate 302. A driving hole 304 is opened on the side of the mounting tube 201 away from the assembly base 101. The driving hole 304 is connected to the driving rod 303 through a rotating assembly. One end of the driving rod 303 is connected to the driving plate 302. The driving rod 303 is rotatably connected to the driving plate 302, and the other end of the driving rod 303 is connected to the mounting plate 202.

[0027] It should be noted here that the drive assembly is provided to facilitate the movement of the clamping plate 102 toward or away from the workpiece.

[0028] See also Figure 2 The rotating assembly shown in the figure includes a lever 401 fixedly connected to the inner wall of the driving hole 304. The end of the lever 401 close to the driving rod 303 has a rounded corner. The side wall of the driving rod 303 is provided with a first straight groove 402, a spiral groove 403 and a second straight groove 404. The spiral groove 403 is connected to the first straight groove 402 and the second straight groove 404. The end of the lever 401 away from the driving hole 304 slides in the first straight groove 402, the spiral groove 403 and the second straight groove 404.

[0029] It should be noted here that: through the setting of the rotating component, when the workpiece is positioned and clamped, the clamping plate 102 can be rotated to the top of the workpiece, thereby facilitating the positioning and clamping operation of the workpiece. When the workpiece is contacted, positioned and clamped, the clamping plate 102 can be rotated to one side of the workpiece when it is away from the workpiece, thereby avoiding obstruction when taking the workpiece.

[0030] Working principle: When assembling a workpiece, first place the workpiece on the assembly base 101, then start the push rod motor 301 to drive the driving plate 302 to move close to the assembly base 101. In the process of the driving plate 302 moving close to the assembly base 101, the driving rod 303 is further used to drive the clamping plate 102 on one side of the mounting plate 202 to move close to the workpiece. In the process of the driving rod 303 shrinking into the mounting tube 201, the supporting rod 401 first slides in the second straight groove 404, thereby providing a guide for the movement of the driving rod 303. As the driving rod 303 moves, the supporting rod 401 slides in the second straight groove 404, thereby providing a guide for the movement of the driving rod 303. Continuously move, when the push rod 401 and the spiral groove 403 collide, the driving rod 303 will be driven to rotate under the interaction force. When the spiral groove 403 completely passes over the push rod 401, the driving rod 303 will be driven to rotate 90 degrees, thereby further driving the clamping plate 102 to rotate 90 degrees. At this time, the clamping plate 102 will be located above the workpiece. As the driving rod 303 continues to move, the push rod 401 will be combined with the first straight groove 402, thereby driving the driving rod 303 to continuously retract into the mounting tube 201, further driving the clamping plate 102 to continuously move closer to the workpiece;

[0031] When the clamp 102 is in contact with the surface of the workpiece, if the work surface of the workpiece is inclined, as the clamp 102 continues to move downward, the clamping force and the rotation of the rotating ball 204 will cause the clamp 102 to rotate to be parallel to the inclined surface of the workpiece, thereby automatically adapting to the inclination of the workpiece surface. While ensuring the firm positioning of the workpiece, there is no need to repeatedly install and disassemble the clamp 102, thereby improving the efficiency of workpiece positioning and reducing the cost of workpiece positioning. Example 2

[0032] See also Figure 2 and Figure 3 This embodiment further illustrates Example 1. The four clamping plates 102 shown in the figure are provided with an adjustment assembly for adjusting the positioning surface. The adjustment assembly includes an adjustment hole 501 formed in the clamping plate 102. Sliding plates 502 are slidably connected to both sides of the adjustment hole 501. An adjustment plate 503 is fixedly connected to one end of the two sliding plates 502 that are away from each other.

[0033] It should be noted here that: through the setting of the adjustment component, due to the differences in the surface shape of the workpiece and the differences in the surface areas of the high and low surfaces, in order to reduce the interference of the shape differences on the clamping plate 102, the extension distance of the adjustment plate 503 can be adjusted by extending and retracting the sliding plate 502, thereby facilitating the change of the contact area between the clamping plate 102 and the workpiece according to the size of the workpiece positioning surface, thereby further improving the flexibility of workpiece positioning.

[0034] See also Figure 2 , the adjustment plate 503 in the figure is set at the same height as the side of the clamping plate 102 close to the workpiece;

[0035] It should be noted that arranging the adjustment plate 503 and the clamping plate 102 at the same height on the side close to the workpiece allows the adjustment plate 503 and the clamping plate 102 to contact the surface of the workpiece synchronously.

[0036] See also Figure 3 , the four clamping plates 102 shown in the figure are threadedly connected to two bolts 6, one end of the two bolts 6 is set against the side wall of the sliding plate 502;

[0037] It should be noted here that the bolt 6 is provided to limit the adjustment plate 503 after the adjustment is completed.

[0038] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An adaptive positioning fixture comprising: An assembly base plate (101) is provided with four clamping plates (102); the assembly base plate (101) is characterized in that it further comprises: an adaption component provided on the assembly base plate (101) for making the four clamping plates (102) adapt to the inclined surface of the workpiece; The adaption assembly comprises a mounting tube (201) fixedly connected to the assembly base plate (101); a side of the mounting tube (201) away from the assembly base plate (101) is connected to a mounting plate (202) via a driving assembly; the mounting plate (202) is provided with a mounting rod (203); an end of the mounting rod (203) close to the assembly base plate (101) is rotatably connected to a rotating ball (204); a side of the rotating ball (204) away from the mounting plate (202) is connected to the clamping plate (102) via a connecting rod (205).

2. The adaptive positioning fixture according to claim 1, characterized in that: The driving assembly comprises a push rod motor (301) arranged at the bottom of the mounting tube (201), the output end of the push rod motor (301) is connected to a driving plate (302), a driving hole (304) is opened on a side of the mounting tube (201) away from the assembly base plate (101), the driving hole (304) is connected to a driving rod (303) through a rotating assembly, one end of the driving rod (303) is connected to the driving plate (302), and the other end of the driving rod (303) is connected to the mounting plate (202).

3. The adaptive positioning fixture according to claim 2, characterized in that: The rotating assembly includes a push rod (401) fixedly connected to the inner wall of the driving hole (304), the push rod (401) has a rounded corner at one end close to the driving rod (303), and the side wall of the driving rod (303) is provided with a first straight groove (402), a spiral groove (403) and a second straight groove (404), the spiral groove (403) is arranged in communication with the first straight groove (402) and the second straight groove (404), and the end of the push rod (401) away from the driving hole (304) slides in the first straight groove (402), the spiral groove (403) and the second straight groove (404).

4. The adaptive positioning fixture according to claim 1, characterized in that: The four clamping plates (102) are provided with an adjustment assembly for adjusting the positioning surface, the adjustment assembly comprising an adjustment hole (501) opened in the clamping plate (102), sliding plates (502) being slidably connected to both sides of the adjustment hole (501), and an adjustment plate (503) being fixedly connected to one end of the two sliding plates (502) away from each other.

5. The adaptive positioning fixture according to claim 4, characterized in that: The adjustment plate (503) and the clamping plate (102) are arranged at the same height as one side of the workpiece.

6. The adaptive positioning fixture according to claim 1, characterized in that: The four clamping plates (102) are threadedly connected to two bolts (6), and one end of the two bolts (6) is arranged to abut against the side wall of the sliding plate (502).

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