Clamping positioning device

Abstract

The utility model discloses a clamping positioning device, include: base plate, first height adjusting subassembly, fixed mounting is in the base plate, X -axis adjusting subassembly, install in first height adjusting subassembly, clamping subassembly, clamping subassembly includes with the fixed mounting of X -axis adjusting subassembly and along Y -axis setting's locating rod, the two installation post of sliding installation in locating rod and opposite setting, and set up the clamping block of installation post, second height adjusting subassembly, fixed mounting is in the installation post and with clamping block linkage installation. The utility model discloses can realize accurate positioning and multi -size adaptation through three -axis adjustment, and precision and versatility are promoted.

Description

Technical Field

[0001] This utility model belongs to the field of positioning device technology, and specifically relates to a clamping and positioning device. Background Technology

[0002] In the fields of machining and quality inspection, it is often necessary to precisely measure the dimensions of perforated plates (such as circuit board substrates, metal perforated plates, etc.) such as hole spacing and hole diameter. Currently, vision imaging measurement systems are commonly used for non-contact measurement of such perforated plates. To ensure measurement accuracy, the product must be precisely positioned under the imaging lens before measurement, ensuring that the product's reference plane is parallel to the X, Y, and Z coordinate axes of the lens. However, most existing fixtures are fixed structures with poor versatility. One fixture can usually only be used for one type of product. When the product model changes or there is a slight deviation in product size, the fixture must be replaced or remade, which is not only costly but also seriously affects the inspection efficiency. At the same time, these fixtures generally lack multi-degree-of-freedom precision fine-tuning mechanisms, making it difficult to quickly and accurately adjust the product to the ideal state of being parallel to the focal plane of the imaging system. This can easily lead to measurement projection distortion, affecting the accuracy of the measurement results and ultimately restricting the pass rate of subsequent assembly.

[0003] Therefore, it is necessary to provide a clamping and positioning device to address the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a clamping and positioning device that can achieve precise positioning and multi-size adaptation through three-axis adjustment, thereby improving accuracy and versatility.

[0005] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0006] A clamping and positioning device, the clamping and positioning device comprising:

[0007] substrate;

[0008] The first height adjustment component is fixedly mounted on the substrate;

[0009] The X-axis adjustment component is mounted on the first height adjustment component;

[0010] A clamping assembly, comprising a positioning rod fixedly mounted to an X-axis adjustment assembly and arranged along a Y-axis, two mounting posts slidably mounted on the positioning rod and arranged opposite to each other, and a clamping block disposed on the mounting posts;

[0011] The second height adjustment component is fixedly installed on the mounting column and is installed in conjunction with the clamping block.

[0012] In one or more embodiments of the present invention, the first height adjustment assembly includes a stand, a first adjustment rod screwed into the stand along the Z-axis direction, and a first sliding plate screwed to the first adjustment rod and fixedly installed with the X-axis adjustment assembly. The stand is provided with a first guide rail, and the first sliding plate is driven by the first adjustment rod to move back and forth along the length direction of the first guide rail.

[0013] In one or more embodiments of the present invention, the X-axis adjustment assembly includes a first mounting bracket installed with the first height adjustment assembly, a second adjusting rod screwed into the first mounting bracket along the X-axis direction, and a second sliding plate screwed into the second adjusting rod and fixedly installed with the clamping assembly. The first mounting bracket is provided with a second guide rail, and the second sliding plate is driven by the second adjusting rod to move back and forth along the length direction of the second guide rail.

[0014] In one or more embodiments of the present invention, the clamping assembly is fixedly installed with the X-axis adjustment assembly via an angle adjustment assembly, wherein the angle adjustment assembly is configured to adjust the angle of the clamping assembly.

[0015] In one or more embodiments of the present invention, the angle adjustment assembly includes a second mounting bracket, a fixed plate, a movable plate, a first ball, a first screw, and a second screw;

[0016] The second mounting bracket is fixedly installed with the X-axis adjustment assembly;

[0017] The fixing plate is fixedly installed with the second mounting bracket;

[0018] A movable plate is disposed opposite to the fixed plate and fixedly installed with the clamping assembly. The movable plate is provided with a first groove, a second groove and a third groove.

[0019] The first sphere is rotatably mounted in the first groove;

[0020] A first screw and a second screw are screwed onto the fixed plate. The end of the first screw has a second sphere, and the end of the second screw has a third sphere. The movable plate is rotatable around a first axis and / or a second axis. The first axis is located on the line connecting the center of the first sphere and the center of the second sphere, and the second axis is located on the line connecting the center of the first sphere and the center of the third sphere.

[0021] When the first screw is rotated, the second ball is slidably disposed along the extension direction of the second groove, and the movable plate rotates around the second axis; when the second screw is rotated, the third ball is slidably disposed along the extension direction of the third groove, and the movable plate rotates around the first axis.

[0022] In one or more embodiments of the present invention, the clamping assembly further includes an elastic adjustment structure fixedly mounted to the clamping block, the elastic adjustment structure being configured to adjust the distance between the clamping block and the mounting post.

[0023] In one or more embodiments of this utility model, the elastic adjustment structure includes:

[0024] The first adjusting member passes through the mounting post and is screwed onto the clamping block;

[0025] A first elastic element is disposed between the first adjusting element and the mounting post, and the first elastic element has a tendency to move the first adjusting element away from the clamping block.

[0026] In one or more embodiments of this utility model, the second height adjustment component includes:

[0027] The base is fixedly installed on the mounting column;

[0028] The adjusting seat is fixedly installed with the clamping block;

[0029] The second adjusting member abuts against the base and is screwed onto the adjusting seat;

[0030] A second elastic element is disposed between the base and the adjusting seat, and the second elastic element has a tendency to move the adjusting seat away from the base.

[0031] In one or more embodiments of this utility model, a gap is provided between the second height adjustment component and the positioning rod.

[0032] In one or more embodiments of the present invention, the substrate is provided with a clearance groove, the width of which is greater than the sum of the widths of the clamping assembly and the second height adjustment assembly.

[0033] Compared with existing technologies, the clamping and positioning device of this invention constructs a complete three-dimensional positioning system through the coordinated operation of its components. Specifically, the first height adjustment component achieves coarse adjustment along the Z-axis, the X-axis adjustment component completes positioning in the X-direction, and the sliding mounting post in the clamping component enables spacing adjustment along the Y-axis. This three-axis linkage adjustment mechanism allows the device to quickly adapt to perforated plate products of different sizes, significantly improving the equipment's versatility while ensuring positioning accuracy. It effectively solves the problems of narrow applicability and difficult adjustment of traditional clamps, thereby increasing the pass rate of inspection and significantly reducing production costs. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figures 1-2 This is a three-dimensional structural diagram of the clamping and positioning device in one embodiment of the present invention;

[0036] Figure 3 This is a three-dimensional structural diagram of the first height adjustment component in one embodiment of the present invention;

[0037] Figure 4 This is a three-dimensional structural diagram of the X-axis adjustment component in one embodiment of the present invention;

[0038] Figure 5 This is a three-dimensional structural diagram of the angle adjustment component in one embodiment of the present invention;

[0039] Figure 6 This is a three-dimensional structural diagram of the clamping component in one embodiment of the present invention;

[0040] Figure 7 This is a three-dimensional structural diagram of the second height adjustment component in one embodiment of the present invention.

[0041] Explanation of key figure labels:

[0042] 1 substrate

[0043] 11. Clearance Groove

[0044] 2 First height adjustment component

[0045] 21. Erection frame

[0046] 211 First guide rail

[0047] 22 First Adjusting Rod

[0048] 23 First sliding plate

[0049] 3 X-axis adjustment components

[0050] 31 First mounting bracket

[0051] 32 Second Adjusting Rod

[0052] 33 Second sliding plate

[0053] 4 Clamping components

[0054] 41 Positioning rod

[0055] 42 mounting columns

[0056] 43 Clamping Block

[0057] 44. Elastic Adjustment Structure

[0058] 441 First Adjusting Component

[0059] 442 First elastic element

[0060] 5 Second height adjustment component

[0061] 51 Base

[0062] 52 Adjustment seat

[0063] 53 Second Adjustment Component

[0064] 54 Second elastic element

[0065] 6 Angle Adjustment Components

[0066] 61 Second mounting bracket

[0067] 62 Fixing plate

[0068] 63. Activity Board

[0069] 631 First Groove

[0070] 632 Second Groove

[0071] 633 Third Groove

[0072] 64 First Sphere

[0073] 65 First Screw

[0074] 651 Second Sphere

[0075] 66 Second Screw

[0076] 661 The third sphere. Detailed Implementation

[0077] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0078] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0079] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0080] It should be noted that the "X-axis direction" in this application text is an appendix. Figure 1 The direction of the X-axis annotation in the text is different from the "Y-axis direction" in this application. Figure 1 The direction of the Y-axis in the text is different from the "Z-axis direction" in this application. Figure 1 The direction of the Z-axis is indicated in the diagram. The terminology used in this specification is for the purpose of describing specific embodiments only and is not intended to be limiting of the invention.

[0081] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0082] Reference Figure 1 , 2 As shown in Figure 6, the clamping and positioning device in one embodiment of this utility model includes a base plate 1, a first height adjustment component 2, an X-axis adjustment component, a clamping component 4, and a second height adjustment component 5. The first height adjustment component 2 is fixedly mounted on the base plate 1 and is responsible for performing a wide range of coarse Z-axis height adjustments to quickly adapt to the differences in base height of different types of perforated plates. The X-axis adjustment component is mounted on the first height adjustment component 2 and can precisely control the position of the perforated plate in the horizontal direction. The clamping component 4 includes a positioning rod 41 fixedly mounted to the X-axis adjustment component and arranged along the Y-axis, two mounting posts 42 slidably mounted on the positioning rod 41 and arranged opposite to each other, and a clamping block 43 disposed on the mounting posts 42. The second height adjustment component 5 is fixedly mounted on the mounting posts 42 and linked with the clamping block 43. The second height adjustment component 5 is responsible for independently fine-tuning the height of the clamping block 43 to adapt to different types of perforated plates. Through the coordinated work of each component, a complete three-dimensional positioning system is constructed. The first height adjustment component 2 achieves coarse adjustment along the Z-axis, the X-axis adjustment component completes positioning in the X direction, and the sliding mounting post 42 in the clamping component 4 achieves spacing adjustment in the Y-axis direction. This three-axis linkage adjustment mechanism allows the device to quickly adapt to perforated plate products of different sizes, significantly improving the equipment's versatility while ensuring positioning accuracy. It effectively solves the problems of narrow applicability and difficult adjustment of traditional fixtures, and greatly reduces production costs while improving the pass rate of inspection.

[0083] To ensure smooth lifting and lowering in the Z-axis direction and sufficient load-bearing capacity, refer to Figure 3As shown, the first height adjustment component 2 in this embodiment includes a stand 21, a first adjustment rod 22 screwed into the stand 21 along the Z-axis direction, and a first sliding plate 23 screwed to the first adjustment rod 22 and fixedly installed with the X-axis adjustment component. The top of the first adjustment rod 22 is provided with a handwheel for the operator to rotate. The stand 21 is provided with a first guide rail 211. When the operator rotates the handwheel, the first adjustment rod 22 drives the first sliding plate 23 to rise and fall smoothly along the Z-axis direction defined by the first guide rail 211, thereby driving the X-axis adjustment component and clamping component 4 on the first sliding plate 23 to move as a whole, realizing a shakeless and high-precision coarse adjustment positioning.

[0084] To ensure smooth lifting and lowering along the X-axis and sufficient load-bearing capacity, refer to Figure 4 As shown, the X-axis adjustment assembly in this embodiment includes a first mounting bracket 31 installed with the first height adjustment assembly 2, a second adjustment rod 32 screwed into the first mounting bracket 31 along the X-axis direction, and a second sliding plate 33 screwed into the second adjustment rod 32 and fixedly installed with the clamping assembly 4. The first mounting bracket 31 is provided with a second guide rail. By rotating the knob at the end of the second adjustment rod 32, the second sliding plate 33 and the clamping assembly 4 connected thereto can be driven to achieve sensitive and precise reciprocating movement in the X-axis direction.

[0085] In precision measurements, relying solely on X, Y, and Z-axis translation adjustments is sometimes insufficient. When the orifice plate itself has slight warping or uneven clamping force, even with accurate spatial positioning, the measured plane may still not be parallel to the focal plane of the imaging system, leading to measurement projection distortion. (Refer to...) Figure 1 , 2 As shown in Figure 5, this embodiment effectively solves this problem by adding an angle adjustment component 6 between the X-axis adjustment component and the clamping component 4. The clamping component 4 is fixedly installed to the X-axis adjustment component through the angle adjustment component 6. Specifically, after the clamping component 4 clamps the hole plate, if the preview imaging shows that the plane of the hole plate has an angle, the operator can fine-tune the component to drive the entire clamping component 4 to rotate slightly around a specific axis, thereby correcting the spatial posture of the hole plate in real time and accurately until its reference plane is completely parallel to the imaging focal plane, so as to eliminate the measurement error caused by the workpiece tilt and ensure the accuracy and reliability of the measurement results of hole spacing, hole diameter and other dimensions.

[0086] Specifically, refer to Figure 5As shown, the angle adjustment assembly 6 includes a second mounting bracket 61, a fixed plate 62, a movable plate 63, a first ball 64, a first screw 65, and a second screw 66. The second mounting bracket 61 is fixedly mounted to the X-axis adjustment assembly, the fixed plate 62 is fixedly mounted to the second mounting bracket 61, and the movable plate 63 is arranged parallel to the fixed plate 62 and fixedly mounted to the clamping assembly 4. A first groove 631, a second groove 632, and a third groove 633 are provided on the side of the movable plate 63 facing the fixed plate 62. The angle adjustment assembly 6 also includes a first ball 64 constrained within the first groove 631, serving as the central universal support point of the entire movable plate 63. Two adjustment screws—the first screw 65 and the second screw 66—are screwed through the fixed plate 62 from the side away from the movable plate 63. The end of the first screw 65 is fitted with a second ball 651, which is embedded in the second groove 632; the end of the second screw 66 is fitted with a third ball 661, which is embedded in the third groove 633. The movable plate 63 can rotate around a first axis defined by the centers of the first sphere 64 and the third sphere 661, and a second axis defined by the centers of the first sphere 64 and the second sphere 651. When the first screw 65 is rotated, the second sphere 651 at its end slides within the second groove 632, pushing the movable plate 63 to rotate around the second axis; when the second screw 66 is rotated, it drives the movable plate 63 to rotate around the first axis. This design achieves angle adjustment in two directions and has a self-locking function, resulting in excellent stability.

[0087] To address the issue that excessive clamping force can easily cause deformation of the workpiece clamped by the rigid clamping block 43, refer to Figure 6 As shown, in this embodiment, an elastic adjustment structure 44 is added between each clamping block 43 and its corresponding mounting post 42. This elastic adjustment structure 44 can dynamically and elastically adjust the relative distance between the clamping block 43 and the end face of the mounting post 42. When the clamping block 43 clamps the workpiece, the elastic element in this structure undergoes controllable deformation, thereby absorbing dimensional deviations and converting the elastic force into a uniform and continuous clamping force. This not only protects the workpiece surface but also improves the reliability of the entire clamping process.

[0088] Specifically, refer to Figure 6 As shown, the elastic adjustment structure 44 in this embodiment includes a first adjusting member 441 and a first elastic member 442. The first adjusting member 441 passes through the through hole of the mounting post 42 and is screwed onto the clamping block 43. The first elastic member 442 is sleeved on the first adjusting member 441 and pre-compressed between the stepped surface inside the through hole of the mounting post 42 and the back surface of the clamping block 43. This set of springs continuously applies an elastic force, which causes the first adjusting member 441 to always have a tendency to move away from the mounting post 42, thereby causing the clamping block 43 screwed to the first adjusting member 441 to have a tendency to move away from the mounting post 42, so that the clamping block 43 can have a suitable clamping force to press the perforated plate.

[0089] To facilitate adjustment of the height of the clamping block 43 and thus adapt to orifice plates of different sizes, refer to... Figure 7 As shown, the second height adjustment assembly 5 in this embodiment includes a base 51, an adjustment seat 52, a second adjustment member 53, and a second elastic member 54. The base 51 is fixedly mounted on the mounting post 42; the adjustment seat 52 is fixedly mounted to the clamping block 43, and the adjustment seat 52 can slide up and down relative to the base 51; the second adjustment member 53 is screwed through the adjustment seat 52 from bottom to top, and its end abuts against the bottom surface of the base 51; the second elastic member 54 is disposed in the cavity between the base 51 and the adjustment seat 52, and the second elastic member 54 has a tendency to move the adjustment seat 52 away from the base 51. When the first rotation is turned in to fine-tune the second adjustment member 53, the second adjustment member 53 pushes against the base 51, forcing the adjustment seat 52 to move downward against the spring force, causing the clamping block 43 to be finely adjusted downward; when turned out in the second rotation opposite to the first rotation, the spring force causes the clamping block 43 to return to its original position upward. The second height adjustment assembly 5 has a compact structure and fine adjustment, enabling independent fine-tuning of the height of the clamping block 43. For example, the first turn can be clockwise, and the second turn can be counterclockwise. Of course, the first turn can be counterclockwise, and the second turn can be clockwise.

[0090] Preferably, to ensure that the second height adjustment component 5 does not collide with the positioning rod 41 during fine-tuning and sliding together with the mounting post 42 on the positioning rod 41, refer to Figure 1 , 2 As shown, there is a gap between the second height adjustment component 5 and the positioning rod 41.

[0091] Preferably, to facilitate adaptation to different orifice plates and save space, refer to Figure 1 , 2 As shown, the substrate 1 in this embodiment is provided with a clearance groove 11, the width of which is greater than the sum of the widths of the clamping assembly 4 and the second height adjustment assembly 5.

[0092] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component 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.

[0093] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0094] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0095] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0096] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clamping and positioning device, characterized in that, The clamping and positioning device includes: substrate; The first height adjustment component is fixedly mounted on the substrate; The X-axis adjustment component is mounted on the first height adjustment component; A clamping assembly, comprising a positioning rod fixedly mounted to an X-axis adjustment assembly and arranged along a Y-axis, two mounting posts slidably mounted on the positioning rod and arranged opposite to each other, and a clamping block disposed on the mounting posts; The second height adjustment component is fixedly installed on the mounting column and is installed in conjunction with the clamping block.

2. The clamping and positioning device according to claim 1, characterized in that, The first height adjustment assembly includes a stand, a first adjustment rod screwed into the stand along the Z-axis, and a first sliding plate screwed to the first adjustment rod and fixedly installed with the X-axis adjustment assembly. The stand is provided with a first guide rail, and the first sliding plate is driven by the first adjustment rod to move back and forth along the length of the first guide rail.

3. The clamping and positioning device according to claim 1, characterized in that, The X-axis adjustment assembly includes a first mounting bracket installed with the first height adjustment assembly, a second adjustment rod screwed into the first mounting bracket along the X-axis direction, and a second sliding plate screwed into the second adjustment rod and fixedly installed with the clamping assembly. The first mounting bracket is provided with a second guide rail, and the second sliding plate is driven by the second adjustment rod to move back and forth along the length direction of the second guide rail.

4. The clamping and positioning device according to claim 1, characterized in that, The clamping and positioning device further includes an angle adjustment component, which is fixedly installed with the X-axis adjustment component via the angle adjustment component. The angle adjustment component is configured to adjust the angle of the clamping component.

5. The clamping and positioning device according to claim 4, characterized in that, The angle adjustment assembly includes a second mounting bracket, a fixed plate, a movable plate, a first ball, a first screw, and a second screw; The second mounting bracket is fixedly installed with the X-axis adjustment assembly; The fixing plate is fixedly installed with the second mounting bracket; A movable plate is disposed opposite to the fixed plate and fixedly installed with the clamping assembly. The movable plate is provided with a first groove, a second groove and a third groove. The first sphere is rotatably mounted in the first groove; A first screw and a second screw are screwed onto the fixed plate. The end of the first screw has a second sphere, and the end of the second screw has a third sphere. The movable plate is rotatable around a first axis and / or a second axis. The first axis is located on the line connecting the center of the first sphere and the center of the second sphere, and the second axis is located on the line connecting the center of the first sphere and the center of the third sphere. When the first screw is rotated, the second ball is slidably disposed along the extension direction of the second groove, and the movable plate rotates around the second axis; when the second screw is rotated, the third ball is slidably disposed along the extension direction of the third groove, and the movable plate rotates around the first axis.

6. The clamping and positioning device according to claim 1, characterized in that, The clamping assembly also includes an elastic adjustment structure fixedly mounted to the clamping block, the elastic adjustment structure being configured to adjust the distance between the clamping block and the mounting post.

7. The clamping and positioning device according to claim 6, characterized in that, The elastic adjustment structure includes: The first adjusting member passes through the mounting post and is screwed onto the clamping block; A first elastic element is disposed between the first adjusting element and the mounting post, and the first elastic element has a tendency to move the first adjusting element away from the clamping block.

8. The clamping and positioning device according to claim 1, characterized in that, The second height adjustment component includes: The base is fixedly installed on the mounting column; The adjusting seat is fixedly installed with the clamping block; The second adjusting member abuts against the base and is screwed onto the adjusting seat; A second elastic element is disposed between the base and the adjusting seat, and the second elastic element has a tendency to move the adjusting seat away from the base.

9. The clamping and positioning device according to claim 1, characterized in that, A gap is provided between the second height adjustment component and the positioning rod.

10. The clamping and positioning device according to claim 1, characterized in that, The substrate is provided with a clearance groove, the width of which is greater than the sum of the widths of the clamping assembly and the second height adjustment assembly.

Images