Buffer positioning mechanism

Abstract

The utility model relates to the technical field of industrial positioning equipment, and discloses a buffer positioning mechanism. The buffer positioning mechanism comprises a bottom plate, an X-axis positioning assembly and a Y-axis positioning assembly, a positioning jig for bearing a workpiece is detachably erected above the bottom plate; the X-axis positioning assembly is arranged on the bottom plate in the X-axis direction and comprises a driving air cylinder and a driving block connected to the telescopic end of the driving air cylinder, a linear bearing is arranged in the driving block, a matched guide rod is arranged in the linear bearing in a sliding mode, the guide rod is sleeved with a buffering piece, and the end, away from the linear bearing, of the guide rod is connected with a baffle. A rotatable positioning column is arranged above one end, far away from the baffle plate, of the guide rod; the Y-axis positioning assembly is arranged on the bottom plate in the Y-axis direction, and the Y-axis positioning assembly and the X-axis positioning assembly are the same in structure. According to the buffering positioning mechanism, the workpiece positioning efficiency and accuracy are effectively improved, and the problems of inaccurate workpiece positioning, workpiece edge breakage, scratching and the like are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial positioning equipment technical field, concretely is a buffer positioning mechanism. BACKGROUND

[0002] Positioning mechanism is very widely used in mechanical equipment, and the main role is to determine and maintain the position of parts or workpieces, ensure the accurate and stable positioning of workpieces in the running process of mechanical equipment, so as to achieve the expected function and performance. In the automation equipment, the positioning mechanism is responsible for quickly and accurately placing the workpiece on the equipment, through the cooperation of the clamp and the positioning piece, to ensure that the workpiece does not shift during processing or assembly. For example, in the 3C industry, the glass panel of mobile phone glass or other electronic products needs to be detected after production and processing, and the positioning mechanism is needed to accurately position the glass so that the measuring equipment can accurately and effectively detect.

[0003] However, the existing positioning mechanism cannot simultaneously push the workpiece to the position in X and Y directions during the workpiece positioning process, which will cause the workpiece to be in one direction and not in the other direction, and the pressure in the direction will increase, thereby increasing the friction in that direction. When the pushing force in the other direction is less than the side friction, the workpiece will be stuck and cannot be pushed to the position. If the pushing force of the positioning mechanism is greater than the friction, it is easy to cause the workpiece to collapse, scratch and inaccurate positioning, which ultimately leads to a decrease in the yield of the workpiece.

[0004] Therefore, there is an urgent need for a buffer positioning mechanism to solve the above problems. UTILITY MODEL CONTENT

[0005] Based on the above, the purpose of the utility model is to provide a buffer positioning mechanism to solve the problem of low yield of workpieces caused by workpiece sticking, collapsing, scratching or inaccurate positioning of the positioning mechanism in the prior art.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a buffer positioning mechanism, which comprises:

[0008] A bottom plate, the upper side of the bottom plate is detachably erected with a positioning jig for carrying workpieces;

[0009] An X-axis positioning assembly is arranged on the bottom plate along the X-axis direction, and the X-axis positioning assembly comprises a driving cylinder and a driving block connected to the telescopic end of the driving cylinder.

[0010] A Y-axis positioning assembly is arranged on the bottom plate along the Y-axis direction, and the Y-axis positioning assembly has the same structure as the X-axis positioning assembly.

[0011] As an optional technical solution of the buffer positioning mechanism, the buffer piece is a buffer spring, one end of the buffer spring abuts against the linear bearing, and the other end of the buffer spring abuts against the baffle.

[0012] As an optional technical solution of the buffer positioning mechanism, one end of the linear bearing away from the buffer spring is connected with a positioning plate, the positioning plate is provided with an adjusting hole, the positioning plate is connected to the linear bearing through the adjusting hole and can be adjusted up and down, and the positioning column is arranged at the top end of the positioning plate.

[0013] As an optional technical solution of the buffer positioning mechanism, the top of the positioning plate is provided with a positioning bearing, and the positioning column is rotatably arranged in the positioning bearing.

[0014] As an optional technical solution of the buffer positioning mechanism, a sheath made of silica gel or rubber is arranged on the positioning column.

[0015] As an optional technical solution of the buffer positioning mechanism, a plurality of positioning holes are arranged on the bottom plate, an adjusting plate is detachably arranged on the positioning hole, and the driving cylinder is arranged on the adjusting plate.

[0016] As an optional technical solution of the buffer positioning mechanism, support columns are arranged at the positions of the four corners of the bottom plate, respectively, a top plate is connected to the top ends of the four support columns, and the positioning jig is arranged on the top plate.

[0017] As an optional technical solution of the buffer positioning mechanism, the top plate and the positioning jig are respectively provided with a clearance on the side close to the Y-axis positioning assembly.

[0018] As an optional technical solution of the buffer positioning mechanism, limit blocks are arranged on the upper end faces of the two sides of the positioning jig away from the X-axis positioning assembly and the Y-axis positioning assembly, respectively.

[0019] As an optional technical solution of the buffer positioning mechanism, the limit blocks are made of rubber or silica gel.

[0020] The utility model discloses a beneficial effect is:

[0021] The utility model provides a kind of buffering positioning mechanism, the buffering positioning mechanism includes: bottom plate, X axis positioning assembly and Y axis positioning assembly;Positioning fixture for carrying workpiece is detachably erected in the top of bottom plate;X axis positioning assembly is along X axis direction and is equipped in bottom plate, and X axis positioning assembly includes drive cylinder and the drive block connected on the telescopic end of drive cylinder, drive block is equipped with linear bearing, matching guide rod is slidably equipped in linear bearing, guide rod is equipped with buffer, and the end of guide rod away from linear bearing is connected with baffle;The top of the end of guide rod away from baffle is equipped with rotatable positioning column;Y axis positioning assembly is along Y axis direction and is equipped in bottom plate, and Y axis positioning assembly and X axis positioning assembly are same in structure.

[0022] Under the above structure, drive cylinder on X axis positioning assembly and Y axis positioning assembly drive drive block to drive positioning column to position workpiece on positioning fixture simultaneously towards X axis and Y axis direction, if workpiece is stuck on positioning fixture and appears position deviation, linear bearing will continue to move along with drive block towards buffer, at this time, buffer will be compressed under force, provide certain safety buffer stroke between positioning column and workpiece, prevent workpiece from being damaged by positioning column to continue to push workpiece, on the other hand, when workpiece is pushed to position in one of X axis or Y axis direction, the rotatable structure of positioning column can reduce the friction between workpiece side edge and positioning column, effectively prevent workpiece from being stuck.The buffering positioning mechanism improves the efficiency and accuracy of workpiece positioning, prevents workpiece from being positioned inaccurately, workpiece from being broken, scratch and other problems, improves the yield of workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is whole structure schematic diagram of buffering positioning mechanism in the utility model embodiment;

[0024] Figure 2 It is the exploded schematic diagram of buffering positioning mechanism in another visual angle in the utility model embodiment;

[0025] Figure 3 It is the exploded schematic diagram of X axis positioning assembly in the utility model embodiment.

[0026] In the drawing:

[0027] 1, bottom plate;10, positioning hole;11, adjusting plate;12, support stand;13, top plate;14, empty position;

[0028] 2, positioning fixture;20, limit block;21, workpiece;

[0029] 3, X-axis positioning assembly; 30, driving cylinder; 31, driving block; 32, linear bearing; 33, guide rod; 34, buffer spring; 35, baffle; 36, positioning plate; 360, adjusting hole; 361, positioning bearing; 37, positioning column; 370, sheath;

[0030] 4, Y-axis positioning assembly. DETAILED DESCRIPTION

[0031] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.

[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0033] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the utility model.

[0035] In the description of the utility model, unless otherwise stated, the meaning of "a plurality of" is two or more. In addition, the terms "first", "second" are only used to distinguish in the description and have no special meaning.

[0036] AsFigures 1-3 As shown, this utility model provides a buffer positioning mechanism, which includes a base plate 1, a positioning fixture 2 for supporting a workpiece 21 is detachably mounted on the top of the base plate 1; an X-axis positioning assembly 3 is mounted on the base plate 1 along the X-axis direction, the X-axis positioning assembly 3 includes a drive cylinder 30 and a drive block 31 connected to the telescopic end of the drive cylinder 30, a linear bearing 32 is installed inside the drive block 31, a matching guide rod 33 is slidably provided inside the linear bearing 32, a buffer element is sleeved on the guide rod 33, and a baffle 35 is connected to the end of the guide rod 33 away from the linear bearing 32; a rotatable positioning post 37 is provided above the end of the guide rod 33 away from the baffle 35; and a Y-axis positioning assembly 4 is mounted on the base plate 1 along the Y-axis direction, the Y-axis positioning assembly 4 having the same structure as the X-axis positioning assembly 3.

[0037] This utility model provides a buffer positioning mechanism that uses drive cylinders 30 on the X-axis positioning assembly 3 and the Y-axis positioning assembly 4 to drive drive block 31 to drive positioning column 37 to simultaneously position workpiece 21 on positioning fixture 2 in the X-axis and Y-axis directions. If workpiece 21 becomes misaligned and jammed on positioning fixture 2, linear bearing 32 will follow drive block 31 to continue moving towards the buffer component. At this time, the buffer component will be compressed, providing a certain safe buffer stroke between positioning column 37 and workpiece 21, preventing positioning column 37 from continuing to push workpiece 21 and causing damage to workpiece 21. On the other hand, when workpiece 21 is pushed into place in either the X-axis or Y-axis direction, the rotatable structure of positioning column 37 can reduce the friction between the side edge of workpiece 21 and positioning column 37, effectively preventing workpiece 21 from jamming. This buffer positioning mechanism improves the efficiency and accuracy of workpiece 21 positioning, prevents problems such as inaccurate positioning of workpiece 21, chipping of workpiece 21, and scratches, and improves the yield of workpiece 21.

[0038] Specifically, such as Figure 2 As shown, a support column 12 is installed at each of the four corners of the base plate 1. The top of the four support columns 12 is connected to the top plate 13. The positioning fixture 2 is detachably mounted on the top plate 13 by screws. That is to say, in order to adapt to the positioning operation of workpieces 21 of different specifications, the positioning fixture 2 on the top plate 13 can be replaced, thereby increasing the applicability of the buffer positioning mechanism. On the other hand, clearance positions 14 are provided on the side of the top plate 13 and the positioning fixture 2 near the Y-axis positioning component 4. Thus, when the positioning column 37 on the Y-axis positioning component 4 pushes the workpiece 21 to position in the Y-axis direction, the clearance position 14 provides effective clearance space for the positioning column 37, so that the workpiece 21 can be positioned more accurately in the Y-axis direction, and at the same time, it can also meet the positioning of workpieces 21 of different widths.

[0039] Further, the positioning jig 2 is provided with a limiting block 20 on the upper end face of both sides away from the X-axis positioning assembly 3 and the Y-axis positioning assembly 4, and the two limiting blocks 20 are arranged along the X-axis and the Y-axis direction respectively. The shape of the limiting block 20 can be matched with the shape of the workpiece 21 to increase the effective positioning of the workpiece 21 of different shape specifications. In the embodiment, the limiting block 20 is made of rubber or silicone material. The rubber or silicone material has not only wear resistance but also good buffer resilience. Therefore, the phenomenon of edge collapse and scratching of the workpiece 21 can be effectively prevented during the positioning of the workpiece 21.

[0040] Further, as shown in Figure 2 The bottom plate 1 is provided with a plurality of positioning holes 10, and the adjusting plate 11 is installed through the positioning holes 10. The driving cylinder 30 is fixedly arranged on the adjusting plate 11. The adjusting plate 11 and the positioning hole 10 are detachably connected through threads. That is, the installation of the adjusting plate 11 on different positioning holes 10 can adjust the distance of the entire X-axis positioning assembly 3 or Y-axis positioning assembly 4 on the X-axis or Y-axis. Therefore, the buffer positioning mechanism can position the workpiece 21 of the same shape with a larger or smaller size without replacing the positioning jig 2. In this structure, the number of positioning jigs 2 and the time for replacing the positioning jigs 2 can be reduced to reduce the equipment cost and improve the positioning efficiency.

[0041] In the embodiment, as shown in Figure 3 The buffer is preferably a buffer spring 34, and a buffer rubber sleeve can also be used. The buffer spring 34 is sleeved on the guide rod 33. One end of the buffer spring 34 can abut against the linear bearing 32, and the other end can abut against the baffle 35. In this structure, when the driving cylinder 30 drives the driving block 31 to drive the positioning column 37 to position the workpiece 21 on the positioning jig 2 in the X-axis and Y-axis directions, if the workpiece 21 is offset on the positioning jig 2 and is stuck, the linear bearing 32 will continue to move in the direction of the buffer along with the driving block 31. At this time, the buffer spring 34 will be compressed under stress. The driving block 31 and the positioning column 37 are static, and the guide rod 33 continues to shrink along with the driving cylinder 30. Thus, a certain safety buffer stroke is provided between the positioning column 37 and the workpiece 21 to prevent the positioning column 37 from continuously pushing the workpiece 21 and causing damage to the workpiece 21.

[0042] Specifically, the linear bearing 32 is connected with the positioning plate 36 away from one end of the buffer spring 34, the positioning plate 36 is provided with an adjusting hole 360, the positioning plate 36 is connected with one end of the linear bearing 32 through the adjusting hole 360 and can be adjusted up and down, the top of the positioning plate 36 is provided with a positioning bearing 361, and the positioning column 37 is rotatably installed in the positioning bearing 361; the positioning plate 36 is adjusted up and down, so that the positioning column 37 can also be adjusted up and down, and therefore the structure meets the positioning of workpieces 21 with different thicknesses; and the positioning column 37 is sleeved with a sheath 370 made of silica gel or rubber, the sheath 370 plays a crucial role in the positioning process of the workpiece 21, can prevent the risk of edge collapse and scratches caused by extrusion between the workpiece 21 and the positioning column 37, and the rotatable positioning column 37 can rotate relative to the workpiece 21, effectively preventing the workpiece 21 from being damaged or not positioned accurately when one side edge of the workpiece 21 is pushed to the position in the X-axis or Y-axis direction due to excessive friction between the workpiece 21 and the positioning column 37.

[0043] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application, and any simple modification, equivalent change and modification of the above embodiment within the scope of the present application are all within the scope of the present application.

Claims

1. A cushioning positioning mechanism, characterized by, The utility model relates to a workpiece positioning device, including: A bottom plate, the upper detachable erection of the bottom plate is provided with a positioning jig for carrying workpiece; X axis positioning assembly, along X axis direction is equipped with on the bottom plate, the X axis positioning assembly includes drive cylinder and is connected on the telescopic end of drive cylinder drive block, the drive block is equipped with linear bearing, the linear bearing is slidably equipped with matched guide rod, the guide rod is equipped with buffer piece, the guide rod is connected with baffle away from the linear bearing one end, the upper of the guide rod is equipped with rotatable positioning column away from the baffle one end, Y axis positioning assembly, along Y axis direction is equipped with on the bottom plate, the Y axis positioning assembly with the X axis positioning assembly structure is same.

2. A cushioning positioning mechanism according to claim 1, wherein The buffer piece is buffer spring, one end of the buffer spring is abutted to the linear bearing, and the other end is abutted to the baffle.

3. A cushioning positioning mechanism according to claim 2, wherein The linear bearing is connected with positioning plate away from the buffer spring one end, the positioning plate is equipped with adjusting hole, the positioning plate is connected with the linear bearing through the adjusting hole and can be adjusted up and down, and the positioning column is equipped on the top of the positioning plate.

4. A cushioning positioning mechanism according to claim 3, wherein The top of the positioning plate is equipped with positioning bearing, and the positioning column is rotatably installed in the positioning bearing.

5. A cushioning positioning mechanism according to claim 4, wherein The positioning column is equipped with the sheath of silica gel or rubber material.

6. The cushioning positioning mechanism of claim 1, wherein, The bottom plate is equipped with a plurality of positioning holes, the positioning hole is detachably installed with adjusting plate, and the drive cylinder is installed on the adjusting plate.

7. The cushioning positioning mechanism of claim 1, wherein, The four corners of the bottom plate are respectively equipped with support stand, and the top of four support stands is connected with top plate, and the positioning jig is installed on the top plate.

8. A cushioning positioning mechanism according to claim 7, wherein The top plate and the positioning jig are respectively provided with an empty space on the side close to the Y axis positioning assembly.

9. The cushioning positioning mechanism of claim 1, wherein, The upper end surface of both sides of the positioning jig away from the X axis positioning assembly and Y axis positioning assembly is respectively equipped with limiting block.

10. A cushioning positioning mechanism according to claim 9, wherein, The limiting block is of rubber or silica gel material structure.

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