CN221621937U - Positioning jig and detection device - Google Patents

Abstract

The present application relates to a positioning fixture, including a substrate and a first positioning component. The first positioning component includes a support rod, a pressure rod and a driving module, wherein the support rod is arranged on the substrate, and is used to support one side of a workpiece along a first direction, the pressure rod is rotatably arranged on the substrate around a rotation axis, the driving module is arranged on the substrate, and is connected to the pressure rod to drive the pressure rod to rotate around the rotation axis, and during the rotation of the pressure rod, it can press against the other side of the workpiece along the first direction to press the workpiece against the support rod. Since the workpiece is pressed by the rotating pressure rod, the driving module only needs to drive the pressure rod to rotate, and there is no need to set a driving structure in the Z direction, so that the positioning fixture occupies less space in the Z direction and can be applied to scenes with smaller space in the Z direction. The present application also relates to a detection device.

Description

Positioning fixture and detection device

Technical Field

The utility model relates to the technical field of product positioning, in particular to a positioning fixture and a detection device.

Background Art

At present, when testing products, it is usually necessary to use a carrier to carry and position the products, and some products have positioning requirements in the three directions of X, Y, and Z. When the current carrier positions the product in the Z direction, it is usually set to drive the positioning block to move along the Z direction to position the product, which occupies a large space in the Z direction, making the carrier unable to be used in scenes with small space in the Z direction.

Utility Model Content

Based on this, it is necessary to provide a positioning fixture and detection device that can position products in the Z direction and occupies less space in the Z direction, so as to address the problem that the existing carrier needs to set a driving structure and a positioning block when positioning the product in the Z direction, resulting in a large space occupied in the Z direction, so as to be applied to scenarios with smaller space in the Z direction.

A positioning fixture, comprising:

substrate; and

A first positioning assembly includes a support rod, a pressure rod and a driving module, wherein the support rod is disposed on the base plate and is used to support one side of the workpiece along a first direction, the pressure rod is rotatably disposed on the base plate around a rotation axis, and the driving module is disposed on the base plate and connected to the pressure rod to drive the pressure rod to rotate around the rotation axis. During the rotation of the pressure rod, the pressure rod can press against the other side of the workpiece along the first direction to press the workpiece tightly against the support rod;

Wherein, the first direction is arranged at an angle with the rotation axis.

The above positioning fixture is used to support the workpiece on the support rod, and then the driving module drives the pressure rod to rotate and press against the workpiece, so as to press the workpiece against the support rod to achieve positioning of the workpiece in the Z direction. At the same time, since the workpiece is pressed by the rotating pressure rod, the driving module only needs to drive the pressure rod to rotate, and there is no need to set a driving structure in the Z direction, so that the positioning fixture occupies less space in the Z direction and can be used in scenes with smaller space in the Z direction.

In one embodiment, the substrate is provided with a detection port along the first direction to accommodate the workpiece, the support rod is arranged on one side of the substrate along the first direction and extends into the detection port, and the pressure rod is rotatably arranged on the other side of the substrate along the first direction.

In one embodiment, the support rod and the pressure rod are both in contact with the edge of the workpiece to expose the areas to be inspected on both sides of the workpiece along the first direction.

In one embodiment, the first positioning assembly also includes a mounting seat, the driving module includes a push rod and a first driving member, the mounting seat is arranged on the substrate, the pressure rod and the push rod are both arranged on the mounting seat, and the pressure rod is rotatable around the rotation axis, the push rod is reciprocating along a second direction that is angled with the first direction, the push rod is connected to the pressure rod, and the first driving member is used to drive the push rod to move along the second direction so that the push rod drives the pressure rod to rotate.

In one embodiment, the driving module also includes a first reset member, which is connected between the mounting seat and the pressure rod and is used to provide a force to rotate the pressure rod and press against the workpiece. The first driving member is used to drive the push rod to drive the pressure rod to rotate and move away from the workpiece to release the workpiece.

In one embodiment, the driving module also includes a second reset member, and the push rod can pass through a first position and a second position during the movement along the second direction. The first driving member can drive the push rod to move from the first position to the second position. The second reset member is connected between the mounting seat and the push rod to provide a force to move the push rod from the second position to the first position.

In one embodiment, the driving module further includes a connecting member, one end of which is connected to the push rod, and the other end of which is connected to the pressure rod.

In one embodiment, the positioning fixture further includes a second positioning component, the second positioning component is disposed on the substrate, and the second positioning component is used to position the workpiece in a second direction; and/or

The positioning fixture further includes a third positioning component, which is disposed on the substrate and is used to position the workpiece in a third direction;

The first direction, the second direction and the third direction are arranged at an angle to each other.

In one embodiment, the positioning fixture includes at least two groups of the first positioning components, the two groups of the first positioning components are arranged at intervals, and each group of the first positioning components is used to position a workpiece in the first direction.

A detection device comprises the above-mentioned positioning fixture.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the structure of a positioning fixture provided in one embodiment of the present application;

FIG2 is a schematic structural diagram of a first positioning assembly in the positioning fixture shown in FIG1 ;

FIG3 is a schematic structural diagram of some components of the first positioning assembly in FIG2 ;

FIG4 is a schematic diagram of the rotation principle structure of the pressure rod in the first positioning assembly shown in FIG1;

FIG5 is a schematic diagram of the structure of the first positioning assembly shown in FIG1 when the push rod is located at the first position;

FIG6 is a schematic diagram of the structure of the first positioning assembly shown in FIG1 when the push rod is located at the second position;

FIG7 is a schematic structural diagram of some components of a first positioning assembly in another embodiment;

FIG8 is a schematic structural diagram of the second positioning assembly shown in FIG1 ;

FIG. 9 is a schematic structural diagram of the second positioning assembly shown in FIG. 8 from another angle.

DETAILED DESCRIPTION

In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

As shown in FIG. 1 and FIG. 2 , an embodiment of the present application provides a positioning fixture 100 , including a substrate 110 and a first positioning assembly, wherein the first positioning assembly includes a support rod 121 , a pressure rod 122 and a driving module.

The support rod 121 is disposed on the base plate 110 to support one side of the workpiece along the first direction. The pressure rod 122 is rotatably disposed on the base plate 110 around a rotation axis. The driving module is disposed on the base plate 110 and connected to the pressure rod 122 to drive the pressure rod 122 to rotate around the rotation axis.

During the rotation process, the pressing rod 122 can press against the other side of the workpiece along the first direction, so as to press the workpiece tightly against the supporting rod 121 , thereby achieving the positioning of the workpiece in the first direction.

The first direction is set at an angle with the rotation axis, and the first direction is a direction perpendicular to the paper in Figure 1. Specifically, in the embodiment shown in Figure 2, the first direction is perpendicular to the rotation axis, and the first direction is the Z direction.

The above-mentioned positioning fixture is used to support the workpiece on the support rod 121, and then the driving module drives the pressure rod 122 to rotate and press against the workpiece, so as to press the workpiece against the support rod 121, thereby positioning the workpiece in the Z direction. At the same time, since the workpiece is pressed by the rotating pressure rod 122, the driving module only needs to drive the pressure rod 122 to rotate, and there is no need to set a driving structure in the Z direction, so that the positioning fixture occupies less space in the Z direction and can be used in scenes with smaller space in the Z direction.

In one embodiment, the first positioning assembly further includes a mounting seat 123. The mounting seat 123 is disposed on the base plate 110, and the pressing rod 122 is rotatably disposed on the mounting seat 123 around a rotation axis.

Further, the driving module includes a push rod 124 and a first driving member 125. The push rod 124 is reciprocally movable along the second direction and is disposed on the mounting seat 123, and the push rod 124 is connected to the pressure rod 122. The first driving member 125 is used to drive the push rod 124 to move along the second direction, so that the push rod 124 drives the pressure rod 122 to rotate.

The second direction is arranged at an angle to the first direction. Specifically, the second direction is perpendicular to the first direction.

Optionally, the first driving member 125 is a cylinder.

In one embodiment, the pressure rod 122 is rotatably connected to the mounting seat 123 via a rotation shaft 1221. The central axis of the rotation shaft 1221 is the rotation axis, so that the pressure rod 122 can rotate around the rotation axis.

In the first embodiment, a docking hole is provided on the pressure rod 122, and the docking hole is a bar-shaped hole, and one end of the push rod 124 extends into the docking hole and can reciprocate in the docking hole. In this way, the push rod 124 can drive the pressure rod 122 to reciprocate around the rotation axis during the reciprocating movement along the second direction.

It should be explained that, in a preferred embodiment, the extension direction of the docking hole is perpendicular to the rotation axis, and the center axis of the docking hole along the extension direction intersects with the rotation axis, so as to convert the linear movement of the push rod 124 into the rotation of the pressure rod 122.

Optionally, a roller is provided at one end of the push rod 124, and the roller is rotatable around an axis parallel to the rotation axis. The roller is located in the docking hole and can roll in the docking hole, so that the push rod 124 can drive the pressure rod 122 to rotate more smoothly.

Referring to FIG. 3 and FIG. 4 , in the second embodiment, the driving module further includes a first reset member 126, which is connected between the mounting seat 123 and the pressure rod 122, and is used to provide a force for the pressure rod 122 to rotate and press against the workpiece. The first driving member 125 is used to drive the push rod 124 to drive the pressure rod 122 to rotate and move away from the workpiece to release the workpiece.

In the third embodiment, the driving module further includes a second restoring member 127. The push rod 124 can pass through the first position and the second position during the movement along the second direction.

The first driving member 125 can drive the push rod 124 to move from the first position to the second position, thereby driving the pressure rod 122 to rotate and move away from the workpiece; the second reset member 127 is connected between the mounting seat 123 and the push rod 124, and is used to provide a force to move the push rod 124 from the second position to the first position.

Of course, as shown in FIG. 4 , in the fourth embodiment, the driving module may be provided with a first reset member 126 and a second reset member 127 at the same time, and the first reset member 126 and the second reset member 127 can work together to drive the pressure rod 122 to rotate and press against the workpiece.

Furthermore, the direction of the force provided by the first restoring member 126 is different from the direction of the force provided by the second restoring member 127. In this way, a dead point can be avoided during the rotation of the pressing rod 122.

It should be explained that, as shown in Figures 5 and 6, the pressing rod 122 only needs to press down to position the workpiece and lift up to release or put in the workpiece, that is, the rotation range of the pressing rod 122 can be 90°. The first reset member 126 and the second reset member 127 act simultaneously to avoid the pressing rod 122 from having a dead point within the rotation range.

It should be noted that the present application mainly describes the fourth embodiment.

For easier understanding, please refer to FIG. 5 and FIG. 6 . In FIG. 5 , the push rod 124 is located at the first position, and in FIG. 6 , the push rod 124 is located at the second position. In addition, the following description is provided in conjunction with FIG. 4 :

When positioning the workpiece, the push rod 124 moves to the right under the action of the second reset member 127 to drive the pressure rod 122 to rotate counterclockwise, and the first reset member 126 also drives the pressure rod 122 to rotate counterclockwise at the same time, so that the pressure rod 122 is pressed against the workpiece; when releasing the workpiece, the first driving member 125 drives the push rod 124 to move to the left, and the push rod 124 overcomes the force of the second reset member 127 to move to the left, and drives the pressure rod 122 to overcome the force of the first reset member 126 to rotate clockwise, so that the pressure rod 122 is away from the workpiece.

It is understandable that when the push rod 124 is located at the second position, the pressure rod 122 is away from the workpiece, so that the workpiece can be released. At the same time, it can be determined that the workpiece can also be placed on the support rod 121 at this time.

In one embodiment, the driving module further includes a connecting member 128, one end of the connecting member 128 is connected to the push rod 124, and the other end is connected to the pressure rod 122, so that the push rod 124 drives the pressure rod 122 to rotate around the rotation axis when moving along the second direction.

Furthermore, the connecting member 128 includes a first connecting portion 1281 and a second connecting portion 1282 which are arranged at an angle, wherein one end of the first connecting portion 1281 is connected to the push rod 124, and the other end is connected to the second connecting portion 1282, and one end of the second connecting portion 1282 which is away from the first connecting portion 1281 is connected to the pressure rod 122. In this way, the horizontal height of the end of the connecting member 128 connected to the push rod 124 can be higher than the horizontal height of the end of the connecting member 128 connected to the pressure rod 122, thereby further reducing the installation height of the pressure rod 122 and reducing the space occupied in the Z direction.

In other embodiments, as shown in Fig. 7, the connecting member 128 may also be a straight line. In this case, the installation height of the pressing rod 122 may be increased to be suitable for positioning thicker workpieces.

As shown in FIG1 , in one embodiment, the driving module further includes a push block 129. The first driving member 125 is connected to the push block 129 to drive the push block 129 to reciprocate along the second direction. During the movement of the push block 129, the push block 129 can abut against one end of the push rod 124 to push the push rod 124 from the first position to the second position.

In one embodiment, the substrate 110 is provided with a detection port 111 for accommodating a workpiece along a first direction, and a support rod 121 is provided on one side of the substrate 110 along the first direction and extends into the detection port 111 to support one side of the workpiece along the first direction. A pressure rod 122 is rotatably provided on the other side of the substrate 110 along the first direction to press against the other side of the workpiece along the first direction during rotation.

In one embodiment, the support rod 121 and the pressure rod 122 are in contact with the edge of the workpiece to expose the inspection area on both sides of the workpiece along the first direction, thereby enabling simultaneous inspection of both sides of the workpiece along the first direction.

In one embodiment, the first positioning assembly includes a plurality of support rods 121 , and the plurality of support rods 121 are arranged at intervals along the circumference of the detection port 111 to more stably support the workpiece.

Furthermore, the first positioning assembly also includes a plurality of pressure rods 122, a plurality of mounting seats 123 and a plurality of drive modules. The plurality of mounting seats 123 are arranged at intervals along the circumference of the detection port 111. Each pressure rod 122 is arranged on a corresponding mounting seat 123, and each drive module is also arranged corresponding to a pressure rod 122 to more stably press the workpiece onto the support rod 121.

Specifically in the embodiment shown in FIG1 , support rods 121 are provided on both sides of the detection port 111 along the second direction, and the pressure rods 122 are arranged corresponding to the support rods 121, that is, located on both sides of the detection port 111 along the second direction. In addition, the push rods 124 located on the same side can be pushed by the same first driving member 125 and the push block 129.

Please refer to Fig. 1, in one embodiment, the positioning fixture further includes a second positioning component 130. The second positioning component 130 is disposed on the substrate 110, and the second positioning component 130 is used to position the workpiece in the second direction.

Please refer to Figures 8 and 9. Further, the second positioning assembly 130 includes a fixed block 131, a positioning block 132 and a second driving member 133. The fixed block 131 is fixedly connected to the substrate 110, and the fixed block 131 and the positioning block 132 are respectively located on both sides of the detection port 111 along the second direction. The second driving member 133 is disposed on the substrate 110, and is capable of driving the positioning block 132 to move toward the fixed block 131 along the second direction, so that the positioning block 132 pushes the workpiece to abut against the fixed block 131, thereby realizing positioning of the workpiece in the second direction.

Furthermore, the second positioning assembly 130 further includes a third restoring member 134. The second driving member 133 and the third restoring member 134 are connected between the substrate 110 and the positioning block 132, and are used to provide a force to move the positioning block 132 away from the fixing block 131 along the second direction.

Optionally, the second driving member 133 is a cylinder. When the second driving member 133 is extended, it can drive the positioning block 132 to move toward the fixed block 131 along the second direction. When the second driving member 133 is retracted, the positioning block 132 can move away from the fixed block 131 along the second direction under the action of the third restoring member 134.

In one embodiment, the second positioning assembly 130 further includes a buffer 135. The buffer 135 is disposed on the positioning block 132, and the buffer 135 is used to abut against the workpiece to avoid crushing the workpiece during the positioning process.

In one embodiment, the positioning fixture further includes a third positioning assembly 140. The third positioning assembly 140 is disposed on the substrate 110, and the third positioning assembly 140 is used to position the workpiece in a third direction.

The third direction is arranged at an angle to the first direction and the second direction. Specifically, the first direction, the second direction and the third direction are perpendicular to each other.

It should be noted that the structure of the third positioning assembly 140 is the same as the structure and arrangement of the second positioning assembly 130 , and the third positioning assembly 140 is used to position the workpiece in the third direction, so it is not described in detail here.

In one embodiment, the positioning fixture includes at least two groups of first positioning components, at least two groups of second positioning components 130 and at least two groups of third positioning components 140, and at least two detection ports 111 are provided on the substrate 110. The at least two detection ports 111 are arranged at intervals, and each group of the first positioning components, the second positioning components 130 and the third positioning components 140 corresponds to a detection port 111, so as to position a workpiece in the first direction, the second direction and the third direction respectively.

In order to facilitate understanding of the technical solution of the present application, the positioning process of the positioning fixture in the above embodiment is described in conjunction with Figures 1, 4, 5 and 6:

First, the driving end of the first driving member 125 extends to drive the push block 129 to move toward the push rod 124. The push block 129 and the push rod 124 move from the first position to the second position, and the connecting member 128 drives the pressing rod 122 to rotate, so that the pressing rod 122 is lifted. Next, the workpiece is placed in the inspection port 111, and the workpiece is supported on the support rod 121 at the inspection port 111.

Then the second positioning assembly 130 and the third positioning assembly 140 position the workpiece in the second direction and the third direction respectively. Then the driving end of the first driving member 125 retracts, and the pressure rod 122 rotates and presses against the workpiece under the action of the first reset member 126 and the second reset member 127, completing the positioning of the workpiece in the first direction. At the same time, the push rod 124 can move back to the first position under the action of the second reset member 127.

It should be noted that, taking the second positioning assembly 130 first positioning the workpiece in the second direction as an example: after the workpiece is positioned in the second direction, the buffer 135 on the second positioning assembly 130 contacts the workpiece, and then when positioning in the third direction and the first direction is performed, the workpiece may move. The setting of the buffer 135 can prevent the workpiece from being scratched or damaged.

Based on the positioning jig in the above-mentioned embodiment, the present application also relates to a detection device, which can detect a workpiece positioned on the positioning jig.

The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims (10)

1. A positioning jig, its characterized in that includes:

a substrate; and

The first positioning assembly comprises a supporting rod, a pressing rod and a driving module, wherein the supporting rod is arranged on the base plate and used for supporting one side of a workpiece in a first direction, the pressing rod is rotatably arranged on the base plate around a rotation axis, the driving module is arranged on the base plate and connected with the pressing rod so as to drive the pressing rod to rotate around the rotation axis, and the pressing rod can be propped against the other side of the workpiece in the first direction in the rotating process of the pressing rod so as to compress the workpiece on the supporting rod;

Wherein the first direction is disposed at an angle to the axis of rotation.

2. The positioning jig according to claim 1, wherein the substrate is provided with a detection port for accommodating the workpiece therethrough along the first direction, the support rod is disposed on one side of the substrate along the first direction and extends into the detection port, and the pressing rod is rotatably disposed on the other side of the substrate along the first direction.

3. The positioning jig of claim 1, wherein the support bar and the press bar are both abutted against edges of the workpiece to expose areas to be detected of both side surfaces of the workpiece in the first direction.

4. The positioning jig of claim 1, wherein the first positioning assembly further comprises a mounting base, the driving module comprises a push rod and a first driving member, the mounting base is disposed on the substrate, the push rod and the push rod are both disposed on the mounting base, the push rod is rotatable around the rotation axis, the push rod is reciprocally movable along a second direction which is at an angle with the first direction, the push rod is connected with the push rod, and the first driving member is used for driving the push rod to move along the second direction so that the push rod drives the push rod to rotate.

5. The positioning jig of claim 4, wherein the driving module further comprises a first reset member connected between the mounting base and the pressing rod for providing a force for rotating the pressing rod and pressing the pressing rod against the workpiece, and the first driving member is used for driving the pushing rod to drive the pressing rod to rotate and move away from the workpiece so as to release the workpiece.

6. The positioning jig of claim 4, wherein the driving module further comprises a second reset member, the push rod can pass through a first position and a second position in the process of moving along the second direction, the first driving member can drive the push rod to move from the first position to the second position, and the second reset member is connected between the mounting seat and the push rod and is used for providing a force for moving the push rod from the second position to the first position.

7. The positioning jig of claim 4, wherein the driving module further comprises a connecting piece, one end of the connecting piece is connected with the push rod, and the other end of the connecting piece is connected with the press rod.

8. The positioning jig of any one of claims 1-7, further comprising a second positioning assembly disposed on the substrate, the second positioning assembly configured to position the workpiece in a second direction; and/or

The positioning jig further comprises a third positioning assembly, wherein the third positioning assembly is arranged on the substrate and is used for positioning the workpiece in a third direction;

The first direction, the second direction and the third direction are arranged in an angle mode.

9. The positioning jig of any one of claims 1-7, wherein the positioning jig comprises at least two sets of first positioning components, the two sets of first positioning components are arranged at intervals, and each set of first positioning components is used for positioning one workpiece in the first direction.

10. A detection device comprising the positioning jig of any one of claims 1-9.