Clamping tool for workpiece detection and workpiece detection system using same

Abstract

The utility model discloses a clamping tool for workpiece detection and a workpiece detection system using the same. The clamping tool comprises a workpiece fixing seat; the linear moving assembly is connected with the workpiece fixing base so as to achieve linear motion of the workpiece fixing base; the arc-shaped rotating assembly comprises a movable block connected with the linear moving assembly and a supporting base connected with the movable block; an arc-shaped containing groove is formed in the supporting base in a concave mode, and the movable block is provided with an arc-shaped outer wall face suitable for rotating along the arc-shaped containing groove. Wherein the axial direction of the arc-shaped containing groove is parallel to the linear motion trail of the workpiece fixing base.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a workpiece testing clamping fixture and a workpiece testing system using the same. Background Technology

[0002] The automotive lighting used in existing technologies is no longer just about lighting lamps. With the development of technologies such as LEDs, diodes, lasers, and emerging technologies such as ADB (Adaptive Dimming), DMD (Digital Micromirror Device), and AFS (Alarm Field Scanner), the manufacturing quality of optical products is also facing new challenges.

[0003] Currently, the appearance inspection of optical mold parts (hereinafter referred to as workpieces) after CNC precision machining, including roughness, defects, and shape, is usually achieved using a video microscope. Its working principle is to place the optical part on a support platform, with the video microscope located on the support platform. The surface quality of the part is observed through a display screen connected to the video microscope, and the screen is recorded or photographed for storage.

[0004] Furthermore, when the length of the workpiece being inspected exceeds the visible range, the workpiece can be placed on a fixture that can move left and right, allowing it to move laterally during the inspection process and satisfying the overall inspection of the entire workpiece. For workpieces with regular shapes, left and right movement can meet the positional adjustment needs during inspection. However, for the increasingly common complex and irregularly shaped workpieces, left and right movement alone is insufficient to meet their requirements.

[0005] Therefore, for the inspection needs of workpieces with complex and irregular shapes in the existing technology, the overall structure of the support platform used needs to be further optimized. Utility Model Content

[0006] The primary objective of this invention is to provide a clamping fixture for workpiece inspection, thereby addressing the technical problem of meeting the support requirements for workpieces with complex and irregular shapes.

[0007] The second objective of this invention is to provide a workpiece inspection system to solve the technical problem of meeting the inspection requirements for workpieces with complex and irregular shapes.

[0008] The workpiece inspection clamping fixture of this utility model is implemented as follows:

[0009] A workpiece inspection clamping fixture, comprising:

[0010] Workpiece holder;

[0011] A linear motion component, which is connected to the workpiece holder to realize the linear movement of the workpiece holder;

[0012] An arc-shaped rotating assembly includes a movable block connected to a linear moving assembly and a support base connected to the movable block; the support base has an inwardly recessed arc-shaped receiving groove, and the movable block has an arc-shaped outer wall surface adapted to rotate along the arc-shaped receiving groove; wherein...

[0013] The axial direction of the arc-shaped receiving groove is parallel to the linear motion trajectory of the workpiece fixing seat.

[0014] In an optional embodiment of this utility model, the linear moving assembly includes a connecting seat and a guide structure disposed between the connecting seat and the workpiece fixing seat; wherein

[0015] The connecting seat is connected to the movable block.

[0016] In an optional embodiment of this utility model, the guide structure includes a slide rail disposed on the connecting seat and a slide groove formed on the workpiece fixing seat that slides in cooperation with the slide rail.

[0017] In optional embodiments of this utility model, the connecting seat adopts a cuboid structure, and the workpiece fixing seat also adopts a cuboid structure; and

[0018] The dimension of the workpiece fixing seat along the width direction of the connecting seat is greater than the width of the connecting seat.

[0019] In an optional embodiment of this utility model, the workpiece fixing seat is fixed to the connecting seat by at least two positioning pins; and

[0020] At least two of the positioning posts penetrate the workpiece fixing seat and form two length-side end faces for the connecting seat.

[0021] In an optional embodiment of this invention, the movable block is rotatably engaged with the arc-shaped receiving groove via a connecting shaft; and

[0022] The connecting shaft extends axially along the arc-shaped receiving groove.

[0023] In an optional embodiment of this utility model, the arc-shaped receiving groove is further provided with at least one elastic positioning structure that mates with the arc-shaped outer wall surface of the movable block.

[0024] In an optional embodiment of this utility model, the elastic positioning structure includes at least a telescopically adaptable lever disposed in the wall of the arc-shaped receiving groove, and an elastic element that cooperates with the lever; and

[0025] The movable block has multiple positioning holes spaced apart along its rotation trajectory on its arc-shaped outer wall surface;

[0026] The pin has a dial head suitable for insertion into any of the positioning holes.

[0027] In an optional embodiment of this invention, the elastic positioning structure further includes a base for being fitted into the groove wall of the arc-shaped receiving groove;

[0028] The base has a sliding cavity formed therein for sliding engagement with the push pin; and

[0029] The push pin has a receiving cavity that is suitable for the elastic element to be partially embedded and communicates with the sliding cavity.

[0030] The workpiece inspection system of this utility model is implemented as follows:

[0031] A workpiece inspection system includes: the workpiece inspection clamping fixture, and a video microscope disposed above the workpiece holder.

[0032] By adopting the above technical solution, this utility model has the following beneficial effects: The workpiece inspection clamping fixture and the workpiece inspection system using the present utility model firstly realize the linear movement of the workpiece fixing seat through the linear moving component, thereby enabling the workpiece to move in a linear dimension. Secondly, the workpiece also realizes its rotational movement in a direction perpendicular to the linear dimension through the arc rotating component. In this way, the position of the entire workpiece can be adjusted in two different dimensions, thereby better meeting the position requirements during inspection and improving the accuracy of the inspection results. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the clamping fixture for workpiece inspection according to this utility model;

[0034] Figure 2 This is a schematic diagram of the mating structure between the movable block and the support base of the workpiece inspection clamping fixture of this utility model;

[0035] Figure 3 This is a schematic diagram of the mating structure between the movable block and the connecting seat of the workpiece inspection clamping fixture of this utility model;

[0036] Figure 4 This is a cross-sectional schematic diagram of the support base of the clamping fixture for workpiece inspection according to this utility model.

[0037] Figure 5 This is a schematic diagram of the elastic positioning structure of the clamping fixture for workpiece inspection according to this utility model.

[0038] In the figure: 1. Workpiece fixing seat, 2. Connecting seat, 3. Slide rail, 4. Slide groove, 5. Positioning column, 6. Movable block, 61. Arc-shaped outer wall, 7. Support base, 71. Arc-shaped receiving groove, 81. Push column, 82. Elastic element, 83. Base, 84. Sliding cavity, 85. Limiting ring, 86. Annular limiting part, 87. Push head, 62. Positioning hole, 9. Connecting shaft. Detailed Implementation

[0039] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0040] Example 1:

[0041] Please see Figures 1 to 5 As shown, this embodiment provides a clamping fixture for workpiece inspection, including: a workpiece fixing seat 1 for fixing the workpiece to be measured, a linear moving component for driving the workpiece fixing seat 1 to make linear motion, and an arc rotating component for driving the workpiece fixing seat 1 to make rotational motion.

[0042] Next, let's discuss the linear moving component in detail. It generally includes a connecting seat 2 and a guide structure located between the connecting seat 2 and the workpiece fixing seat 1. In one optional embodiment, the guide structure includes a slide rail 3 on the connecting seat 2 and a groove 4 formed on the workpiece fixing seat 1 that slides in cooperation with the slide rail 3. With the cooperation of the groove 4 and the slide rail 3, the workpiece fixing seat 1 can slide along the connecting seat 2, allowing the workpiece fixing seat 1 to adjust its specific fixed position on the connecting seat 2.

[0043] Based on the above, let's consider another optional implementation. Taking into account the issue of fixing the workpiece holder 1 to the connecting seat 2, in this embodiment, the connecting seat 2 adopts a cuboid structure, and the workpiece holder 1 also adopts a cuboid structure; furthermore, the dimension of the workpiece holder 1 along the width direction of the connecting seat 2 is greater than the width of the connecting seat 2. The workpiece holder 1 is fixed to the connecting seat 2 by at least two positioning pins 5; and at least two positioning pins 5 penetrate the workpiece holder 1 and form two length-side end faces relative to the connecting seat 2. With this structure, when it is necessary to adjust the position of the workpiece holder 1 on the connecting seat 2, simply loosen the positioning pins 5 on the workpiece holder 1, causing the positioning pins 5 to leave the side end faces of the connecting seat 2. In this way, the workpiece holder 1 can move its position along the connecting seat 2. The positioning pins 5 can be fitted with the workpiece holder 1 using, for example, but not limited to, threaded connections. This allows for tightening and loosening of the positioning pins 5 relative to the workpiece holder 1 through rotation, making the operation convenient and efficient.

[0044] Next, we will describe the arc-shaped rotating assembly, which includes a movable block 6 connected to the connecting seat 2 and a support base 7 connected to the movable block 6; the support base 7 is recessed with an arc-shaped receiving groove 71, and the movable block 6 has an arc-shaped outer wall surface 61 suitable for rotating along the arc-shaped receiving groove 71; wherein the movable block 6 may be fastened to the connecting seat 2 by means of, but not limited to, screws.

[0045] Based on the above structure, it should be noted that the axial direction of the arc-shaped receiving groove 71 in this embodiment is parallel to the linear motion trajectory of the workpiece fixing seat 1. This allows the workpiece fixing seat 1 to drive the workpiece to achieve movement in two different dimensions, thus enabling its position adjustment to also have two different dimensions.

[0046] Furthermore, in order to ensure that the movable block 6 does not actually disengage from the arc-shaped receiving groove 71 when it rotates relative to the arc-shaped receiving groove 71, the movable block 6 in this embodiment is rotatably engaged with the arc-shaped receiving groove 71 through a connecting shaft 9; the connecting shaft 9 extends along the axial direction of the arc-shaped receiving groove 71.

[0047] Furthermore, it is necessary to explain that, considering the need to fix the final position of the movable block 6 after it rotates in the arc-shaped receiving groove 71 to prevent it from shaking, this embodiment also includes the following design:

[0048] At least one elastic positioning structure is also provided in the arc-shaped receiving groove 71, which cooperates with the arc-shaped outer wall surface 61 of the movable block 6. A specific optional embodiment is illustrated here with reference to the accompanying drawings. The elastic positioning structure includes at least a telescopically adaptable lever 81 disposed in the groove wall of the arc-shaped receiving groove 71, and an elastic element 82 that cooperates with the lever 81; and a plurality of positioning holes 62 are provided at intervals along the rotation trajectory of the arc-shaped outer wall surface 61 of the movable block 6; the lever 81 has a lever head 87 adapted to be inserted into any one of the positioning holes 62. The elastic element 82 here can be a spring. With this structure, as the movable block 6 rotates to a certain position in the arc-shaped receiving groove 71, the lever head 87 precisely engages with the positioning hole 62, thereby fixing the position of the movable block 6.

[0049] For the dial head itself, a hemispherical structure can be adopted. When it is necessary to rotate the movable block 6, as long as a turning force is applied to the movable block 6, the movable block 6 can generate pressure on the outer wall of the dial head, pressing it into the groove wall of the arc-shaped receiving groove 71. In this way, the dial head will not constitute a resistance to the rotation of the movable block 6 in the arc-shaped receiving groove 71.

[0050] More specifically, the elastic positioning structure used in this embodiment also includes a base 83 for being fitted into the groove wall of the arc-shaped receiving groove 71; a sliding cavity 84 is formed in the base 83 for slidingly engaging with the shift post 81; and a receiving cavity is provided in the shift post 81 for partial embedding of the elastic member 82 and communicating with the sliding cavity 84. In this structure, it is also necessary to note that a limiting ring 85 with an annular protrusion is provided on the shift post 81, and an annular limiting portion 86 that engages with the limiting ring 85 is provided on the inner wall of the sliding cavity 84. Based on this structure, the shift post 81 will not detach from the sliding cavity 84.

[0051] In summary, the workpiece inspection clamping fixture of this embodiment can be adjusted in two different dimensional directions to better meet the position requirements during inspection and improve the accuracy of the inspection results.

[0052] Example 2:

[0053] Based on the workpiece inspection clamping fixture of Embodiment 1, this embodiment provides a workpiece inspection system, including: the workpiece inspection clamping fixture of Embodiment 1, and a video microscope disposed above the workpiece holder 1. For the adapter microscope here, any mature method in the prior art can be used, and this embodiment does not impose an absolute limitation on it.

[0054] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0055] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0058] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0059] In this invention, unless otherwise expressly specified and limited, "above or below" the first feature may include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on" the first feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the first feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

Claims

1. A clamping tool for workpiece detection, characterized in that: include: Workpiece fixing seat; A linear moving assembly connected to the workpiece holder to achieve linear movement of the workpiece holder; An arc-shaped rotating assembly, comprising a movable block connected to a linear moving assembly, and a supporting base connected to the movable block; an arc-shaped receiving groove is concavely provided in the supporting base, and the movable block has an arc-shaped outer wall surface suitable for rotating along the arc-shaped receiving groove; in The axial direction of the arc-shaped accommodating groove is parallel to the linear motion track of the workpiece fixing seat.

2. The workpiece detection fixture according to claim 1, characterized in that: The linear moving assembly includes a connecting seat and a guide structure arranged between the connecting seat and the workpiece fixing seat; in The connecting seat is connected with the movable block.

3. The workpiece detection fixture according to claim 2, characterized in that: The guide structure comprises a slide rail arranged on the engaging seat, and a slide groove formed on the workpiece fixing seat and slidably matched with the slide rail.

4. The workpiece detection fixture according to claim 2 or 3, characterized in that: The connecting seat adopts a rectangular parallelepiped structure, and the workpiece fixing seat adopts a rectangular parallelepiped structure; and The dimension of the workpiece fixing seat along the width direction of the connecting seat is greater than the width of the connecting seat.

5. The workpiece detection fixture according to claim 4, characterized in that: The workpiece fixing seat is fixed on the connecting seat by at least two positioning columns; and At least two of the positioning columns penetrate the workpiece fixing seat and form two length side end surfaces corresponding to the connecting seat.

6. The workpiece detection fixture according to any one of claims 1 to 3, characterized in that: The movable block is rotatably matched with the arc-shaped receiving groove via a connecting shaft; and The connecting shaft extends along the axial direction of the arc-shaped accommodating groove.

7. The workpiece detection fixture according to claim 6, characterized in that: The arc-shaped accommodating groove is also provided with at least one elastic positioning structure which cooperates with the arc-shaped outer wall surface of the movable block.

8. The workpiece detection fixture according to claim 7, characterized in that: The elastic positioning structure at least comprises a retractable lever disposed in the groove wall of the arc-shaped accommodating groove, and an elastic member used in conjunction with the lever; and The arc-shaped outer wall surface of the movable block is provided with a plurality of positioning holes at intervals along its rotation trajectory; The lever pin has a lever head which is suitable for being inserted into any positioning hole.

9. The workpiece detection fixture according to claim 8, characterized in that: The elastic positioning structure also includes a base for being embedded in the groove wall of the arc-shaped accommodating groove; The base is formed with a sliding cavity for slidingly cooperating with the lever; and The lever post is provided with a receiving cavity which is suitable for the elastic member to be partially embedded and is communicated with the sliding cavity.

10. A workpiece detection system, characterized in that: include: A workpiece inspection fixture as claimed in any one of claims 1 to 9, and a video microscope arranged above the workpiece fixing seat.

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