CN113524064A

CN113524064A - Clamping device of electronic equipment

Info

Publication number: CN113524064A
Application number: CN202010314066.3A
Authority: CN
Inventors: 王昌赢; 田真超; 蒋光文; 刘明玉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-10-22

Abstract

The application provides a clamping device which comprises a bottom plate, a first clamping piece, a second clamping piece, a positioning piece and a third clamping piece, wherein the first clamping piece, the second clamping piece, the positioning piece and the third clamping piece are arranged on the same side of the bottom plate; the bottom plate is provided with a positioning center; the first clamping piece and the second clamping piece are symmetrically distributed on two opposite sides of the positioning center, the first clamping piece and the second clamping piece can synchronously move in opposite directions and synchronously move in opposite directions, and the moving direction of the first clamping piece and the moving direction of the second clamping piece are a first direction; the positioning piece is fixed on the bottom plate; the third clamping piece can move close to the positioning piece and move away from the positioning piece, the moving direction of the third clamping piece is a second direction, and the second direction is perpendicular to the first direction; the movement of the third clamping piece and the movement of the first clamping piece and the second clamping piece are not affected mutually. The clamping device can accurately and reliably position and clamp the electronic equipment.

Description

Clamping device of electronic equipment

Technical Field

The application relates to the technical field of electronic equipment manufacturing, in particular to a clamping device of electronic equipment.

Background

Clamping devices are often used in production testing or daily use scenarios of electronic equipment. The clamping device can clamp and fix the electronic equipment to position the electronic equipment, so that the electronic equipment is convenient to test or provide for a user to use. The conventional clamping device cannot accurately position the electronic equipment, and the testing precision or the use experience is influenced.

Disclosure of Invention

The application provides a clamping device of electronic equipment, which can accurately and reliably position the electronic equipment.

The clamping device comprises a bottom plate, a first clamping piece, a second clamping piece, a positioning piece and a third clamping piece, wherein the first clamping piece, the second clamping piece, the positioning piece and the third clamping piece are arranged on the same side of the bottom plate; the bottom plate is provided with a positioning center; the first clamping piece and the second clamping piece are symmetrically distributed on two opposite sides of the positioning center, the first clamping piece and the second clamping piece can synchronously move in opposite directions and synchronously move in opposite directions, and the moving direction of the first clamping piece and the moving direction of the second clamping piece are a first direction; the positioning piece is fixed on the bottom plate; the third clamping piece can move close to the positioning piece and move away from the positioning piece, the moving direction of the third clamping piece is a second direction, and the second direction is perpendicular to the first direction; the movement of the third clamping piece and the movement of the first clamping piece and the second clamping piece are not affected mutually.

The clamping device of this application can use in the production field of making, and the clamping device at this moment can be called anchor clamps. The clamping device can also be applied to daily life, and the clamping device can be called a support (such as a mobile phone support or a tablet computer support).

The base plate may be substantially plate-shaped, and the base plate is used to carry electronic equipment, and to mount other components in the chucking device than the base plate. The location center may be a set point on the base plate, such as a geometric center of the base plate or a point at any suitable location on the base plate. The positioning center is used for positioning a reference surface of the electronic equipment, and when the electronic equipment is clamped in place in the clamping device, the positioning center passes through the reference surface.

The first clamping piece and the second clamping piece are symmetrical about the positioning center, and when the electronic equipment is clamped in place in the clamping device, the first clamping piece and the second clamping piece are also symmetrical about the reference plane of the electronic equipment. The first and second holding members may be arranged in a first direction, the first direction including two directions that are collinear and opposite, for example, when the first direction is transverse, the first direction may include two directions, i.e., left and right. The first direction may also be other suitable directions. The first clamping piece and the second clamping piece can move oppositely or back to back at the same time and at equal intervals, and the moving direction of the first clamping piece and the moving direction of the second clamping piece are the first direction. When the first clamping piece and the second clamping piece move towards each other, the first clamping piece and the second clamping piece can clamp the electronic equipment in the first direction.

The third clamping member and the positioning member may be arranged along a second direction, where the second direction includes two directions that are collinear and opposite, for example, when the second direction is longitudinal, the second direction may include two directions, i.e., upward and downward. The second direction may be any other suitable direction as long as the second direction is perpendicular to the first direction. The positioning member can be used as a positioning reference of the electronic equipment in the second direction, and when the electronic equipment is installed in the clamping device, one side of the electronic equipment can abut against the positioning member, so that the electronic equipment can be limited by the positioning member in the second direction. The third clamping member can move in the second direction to be close to the positioning member or to be far away from the positioning member, and when the third clamping member moves towards the positioning member, the third clamping member and the positioning member can clamp the electronic equipment in the second direction together.

The first clamping piece and the second clamping piece can move through a suitable movement mechanism, and the third clamping piece can also move through a suitable movement mechanism. The motion of first holder and second holder can not be connected and the cooperation relation with the motion of third holder, consequently the removal of first holder and second holder, independent each other, each other do not influence with the removal of third holder, can not have the linkage relation.

In this application scheme, because first holder and second holder symmetric distribution are in the both sides at the center of location, and first holder and second holder can synchronous reverse movement always, consequently after placing electronic equipment between first holder and second holder, first holder and second holder can be about electronic equipment's reference plane symmetric distribution, and the center of location of clamping device is on this plane of symmetry. Therefore, the position of the reference surface of the electronic equipment can be positioned according to the positions of the first clamping piece and the second clamping piece.

In the scheme of the application, the positioning part provides a positioning reference of the electronic equipment in the second direction, so that the electronic equipment has a determined position coordinate reference (namely, a position coordinate of a contact part of the electronic equipment and the positioning part), and the electronic equipment with different sizes has a unified position coordinate reference, thereby improving the positioning precision of the electronic equipment. Moreover, the locating piece can also carry out the centre gripping to electronic equipment on the second direction with the third clamping piece is common, and this can carry out two-way spacing, reinforcing clamping device's centre gripping dynamics and clamping stability to electronic equipment in the second direction.

In this application scheme, because the interval of first holder and second holder is nimble adjustable, the interval of third clamping piece and setting element is nimble adjustable for clamping device can the clamping arbitrary size electronic equipment, also the clamping device has the flexibility, and the commonality is better. This can greatly reduce the cost of production testing or daily use. Taking production testing as an example, aiming at electronic equipment of different models or different testing equipment, the same clamping device is used, and different clamps do not need to be specially designed and manufactured to be matched with different electronic equipment or different testing equipment, so that the design, manufacturing and maintenance costs can be greatly saved. Moreover, the defects that debugging and verification are needed after the clamp is replaced and equipment is stopped can be avoided by using the uniform clamping device, the manufacturing cost can be greatly reduced, and the production efficiency can be ensured.

In one implementation, the clamping device includes a sun gear, a first rack, and a second rack; the circle center of the central gear is superposed with the positioning center; the first rack and the second rack are respectively positioned at two opposite sides of the central gear and are meshed with the central gear, and the first rack and the second rack can synchronously move in the opposite directions and synchronously move in the opposite directions along the first direction through the meshing; the first clamping piece is fixed on the first rack, and the second clamping piece is fixed on the second rack.

The central gear can be a cylindrical gear, and specific structural parameters (such as diameter, tooth number, tooth pitch and the like) of the central gear can be designed according to actual requirements. For reducing the rotation resistance of the central gear, the stable stress of the central gear is ensured, the stable and smooth rotation of the central gear is ensured, the central gear can be matched with a double bearing arranged on the bottom plate, and the rotation is realized through the double bearing. The double bearing comprises two bearings with coincident axes.

The first and second racks may be arranged symmetrically about the center of the sun gear, and the first and second racks may have identical or substantially identical structures. The first rack and the second rack may each include a rack portion and a mounting portion integrally connected, and the rack portion and the mounting portion form an approximately "7" shaped structure. The rack portion meshes with the sun gear, and first holder and second holder all can fix the one end of keeping away from the rack portion at the installation portion. The first rack and the second rack can synchronously and reversely move, so that the first clamping piece and the second clamping piece are driven to synchronously and reversely move. The gear rack mechanism has accurate transmission, the transmission force can meet the requirement, and the first clamping piece and the second clamping piece can be accurately driven to move, so that the first clamping piece and the second clamping piece can accurately and reliably clamp the electronic equipment. Moreover, the gear rack mechanism is simple in structure and convenient to design, so that the clamping device is good in mass production and low in cost.

In one implementation, the clamping device comprises a first elastic piece and/or a second elastic piece; one end of the first elastic piece is fixed on the bottom plate, the other end of the first elastic piece is connected with the second rack, and the first elastic piece is used for providing first elastic force for the second rack so that the second rack has a moving trend close to the first rack; one end of the second elastic piece is fixed on the bottom plate, the other end of the second elastic piece is connected with the first rack, and the second elastic piece is used for providing second elastic force for the first rack so that the first rack has a moving trend close to the second rack.

The present solution may comprise either or both of the first elastic member and the second elastic member. The first elastic member may elastically expand and contract in a first direction, and the first elastic member may generate the first elastic force against the stretching when being stretched, the first elastic force being for pulling the second rack toward the first rack. The second elastic member may elastically expand and contract in the first direction, and the second elastic member may generate a second elastic force against the stretching when being stretched, the second elastic force being for pulling the first rack toward the second rack. The first elastic member may be a spring or other member capable of providing an elastic force. The second elastic member may be a spring or other member capable of providing an elastic force. The elastic force of the first elastic piece and the second elastic piece is the source of the clamping force of the clamping device in the first direction. The first elastic piece and/or the second elastic piece are/is arranged to provide clamping force, external power is not needed, and cost can be reduced.

In one implementation, the clamping device includes a first guide rail and/or a second guide rail, where the first guide rail is fixed to the bottom plate, the first guide rail extends along the first direction, the first rack is slidably mounted on the first guide rail, and the first clamping member is fixed to a side of the first rack away from the first guide rail; the second guide rail is fixed to the bottom plate, the second guide rail extends along the first direction, the second rack is slidably mounted on the second guide rail, and the second clamping piece is fixed to one side, away from the second guide rail, of the second rack. The guide rail mechanism can enable the first rack and/or the second rack to stably move along a determined direction, so that the first clamping piece and the second clamping piece can accurately move, and the first clamping piece and the second clamping piece can accurately and reliably clamp the electronic equipment.

In one implementation, the clamping device comprises a third guide rail and a sliding table; the third guide rail is fixed to the bottom plate and extends along the second direction; the sliding table is slidably mounted on the third guide rail, and the third clamping piece is fixed on one side, deviating from the third guide rail, of the sliding table. The guide rail mechanism can enable the third clamping piece to accurately and stably move along the determined direction, so that the third clamping piece and the positioning piece can accurately and reliably clamp the electronic equipment.

In one implementation manner, the clamping device includes a third elastic member, one end of the third elastic member is fixed to the bottom plate, the other end of the third elastic member is connected to the sliding table, and the third elastic member is used for providing third elastic force to the sliding table, so that the sliding table has a movement tendency close to the positioning member.

In this scheme, the third elastic member can elastically stretch out and draw back along the second direction, and the third elastic member can resist stretching when being stretched to generate the third elastic force, and the third elastic force is used for pulling the third clamping member to the positioning member. The third elastic member may be a spring or other member capable of providing an elastic force. The elastic force of the third elastic part is the source of the clamping force of the clamping device in the second direction. Through providing the third elastic component to provide clamping force, need not to use external power, can reduce cost.

In one implementation manner, one side of the first clamping piece, which faces the second clamping piece, is provided with a first vertical surface and a first clamping surface, the first vertical surface is close to the bottom plate, the first clamping surface is connected with the first vertical surface in a bending manner, and the first clamping surface is far away from the bottom plate and inclines towards the second clamping piece.

In this arrangement the normal to the first vertical surface may be substantially perpendicular to the normal to the base plate. The first clamping surface is used for abutting against the surface of the electronic equipment, and the first vertical surface can not contact with the surface of the electronic equipment. When the electronic equipment is installed in the clamping device, the first clamping piece can apply pressure pointing to the bottom plate to the electronic equipment through the design, so that the electronic equipment can be reliably attached to the bottom plate, and the clamping device is not easy to separate from the clamping device when the clamping device moves or turns over. And, owing to there is the first vertical face for the first holder is convenient for install on first rack, can also guarantee that the one end of first holder installation on first rack is moderate for the size, thereby makes first holder have sufficient structural strength.

In one implementation manner, one side of the positioning element, which faces the third clamping element, is provided with a third vertical surface and a third clamping surface, the third vertical surface is close to the bottom plate, the third clamping surface is connected with the third vertical surface in a bending manner, and the third clamping surface is far away from the bottom plate and inclines towards the third clamping element.

The normal to the third vertical plane may be substantially perpendicular to the normal to the base plate. The third clamping surface is used for abutting against the surface of the electronic equipment, and the third vertical surface can not contact with the surface of the electronic equipment. When the electronic equipment is installed in the clamping device, the positioning piece can apply pressure pointing to the bottom plate to the electronic equipment, so that the electronic equipment can be reliably attached to the bottom plate, and the clamping device is not easy to separate from the clamping device when the clamping device moves or turns over. And, owing to have the third vertical face for the setting element is convenient for install on the bottom plate, can also guarantee that the size of the one end that the setting element was installed on the bottom plate is moderate, thereby makes the setting element have sufficient structural strength.

In one implementation manner, the third clamping piece is a truncated cone, an oblique truncated cone or a truncated pyramid, the end with the smaller bottom area of the third clamping piece is close to the bottom plate, and the end with the larger bottom area of the third clamping piece is far away from the bottom plate. Due to the surface structure of the third clamping piece, when the electronic equipment is installed in the clamping device, the third clamping piece can apply pressure pointing to the bottom plate to the electronic equipment, so that the electronic equipment can be reliably attached to the bottom plate, and the electronic equipment is not easy to separate from the clamping device when the clamping device moves or turns over. In particular, when the third clamping member is a truncated cone, the truncated cone side surface of the third clamping member is a uniform symmetrical surface, and even if the third clamping member is twisted around its axis (for example, due to assembly errors), the clamping of the electronic device by the third clamping member is still not affected.

In one implementation mode, a bearing groove is formed in the edge of the bottom plate; the clamping device comprises a rotating shaft, a bearing and a cover plate; the rotating shaft is fixed in the bearing groove; the bearing comprises an inner ring and an outer ring which are nested with each other, the inner ring is fixed on the periphery of the rotating shaft, the outer ring surrounds the periphery of the inner ring and can rotate relative to the inner ring, and the outer ring partially exposes out of the bearing groove; the cover plate is fixed in the bearing groove and fixedly connected with the rotating shaft, and the rotating shaft and the bearing are located on the same side of the cover plate. When the clamping device circulates in a production line (the production line is in a runner shape and is provided with a flange), the outer ring of the bearing exposed out of the bearing groove can contact the flange of the production line and rotate, so that the clamping device can smoothly move in the production line, and the clamping device is convenient to carry electronic equipment to carry out corresponding tests on each test station on the production line.

In one implementation mode, the clamping device comprises an identification part, the identification part is installed on the surface of the bottom plate, and an identification code is arranged on the identification part.

In this embodiment, the indicator portion may be in the form of a sheet or a plate, for example, or may have any other suitable shape. The identification code may be, for example, a two-dimensional code, a bar code, or other form of code, and carries unique identification information of the clamping device. In the testing process, identification information in the identification code may be bound with identification information (e.g., a product serial number) of the clamped electronic device, where the identification information of the electronic device is associated with information of a model, a size, a required test item, and the like of the electronic device in advance. The binding relationship between the identification code and the identification information of the electronic equipment can be dynamically updated, namely the same identification code can be bound with the identification information of different electronic equipment, and the former binding can be covered by the latter binding. Therefore, the same clamping device can always establish unique corresponding relation with different electronic equipment.

When the clamping device carries the electronic equipment to flow to the testing machine, the testing machine can acquire the identification information of the electronic equipment clamped by the clamping device by scanning the identification code of the clamping device, and then determine the test item corresponding to the electronic equipment so as to perform personalized test on the electronic equipment. The design can realize the mixed circulation of a plurality of clamping devices in the same production line, and the electronic equipment clamped by each clamping device can be subjected to corresponding personalized test, so that the test efficiency is greatly improved, and the disorder cannot occur.

In one implementation mode, a matching groove is formed in the edge of the bottom plate, and a notch is formed in the bottom wall of the matching groove; the clamping device comprises a positioning block, and the positioning block comprises a matching part and a grabbing part; the matching part is fixed in the matching groove, the grabbing part is connected with the matching part, an opening is formed in the grabbing part, and the grabbing part is inserted into the notch.

In this scheme, cooperation portion can be even as an organic whole with the portion of snatching, and the two can approximate formation T shape structure. The engaging portion may be a transverse side of the T-shape and the gripping portion may be a vertical side of the T-shape. The opening on the grabbing part can be used for the grabbing equipment to stretch into so as to grab the clamping device, for example, the plug pin on the automatic clamping jaw can be inserted into the opening and the clamping device can be clamped. Then, the grabbing device can drive the clamping device to transfer or adjust the posture of the clamping device, so as to meet the requirements of different test stations on the posture of the electronic device (for example, the screen of the electronic device faces upward or downward, the USB port of the electronic device faces forward or backward, and the like).

Drawings

Fig. 1 is a schematic structural view showing an electronic device being mounted in a mounting and clamping apparatus of the electronic device according to the present embodiment;

FIG. 2 is a schematic view of the overall structure of the clamping device of FIG. 1;

FIG. 3 is an exploded view of the clamping assembly of FIG. 2;

FIG. 4 is a schematic view of an assembled configuration of a first chuck mechanism of the chuck assembly of FIG. 3;

FIG. 5 is a schematic view of the first clamping member of the first clamping mechanism of FIG. 4;

fig. 6 is a schematic structural view showing that two first clamping pieces in the first clamping mechanism clamp the electronic device;

FIG. 7 is an enlarged partial schematic view of FIG. 3 at A;

FIG. 8 is a schematic view of an assembled configuration of a second chuck mechanism of the chuck assembly of FIG. 3;

FIG. 9 is a schematic view illustrating a structure of the third clamping member and the positioning member clamping the electronic device;

FIG. 10 is a schematic view of an assembled structure of a bearing mechanism of the clamping device of FIG. 3;

FIG. 11 is an exploded view of the bearing mechanism of FIG. 10;

FIG. 12 is an enlarged partial schematic view of FIG. 3 at C;

fig. 13 is a partially enlarged structural view at B in fig. 3.

Detailed Description

The following embodiments of the present application provide a clamping device 10, and the clamping device 10 may be applied to the field of manufacturing (which may be referred to as a fixture in this case) and may also be applied to daily life (for example, may be used as a support). The following description will mainly take the example of the application of the clamping device 10 in the production and manufacturing field as an example.

As shown in fig. 1, the clamping device 10 can clamp an electronic device 100. The electronic device 100 includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a smart tv, a digital camera, a music player, etc. The electronic device 100 may have a substantially rectangular outer contour with a plane of symmetry I. The symmetry plane I may be, for example, a symmetry plane perpendicular to the short side of the electronic apparatus 100. In other embodiments, the symmetry plane I may also be a symmetry plane perpendicular to the long sides of the electronic device 100. The geometrical centre of the electronic device 100 is on the symmetry plane I.

As shown in fig. 2 and 3, the clamping device 10 may include a bottom plate 11, a first clamping mechanism 12, a positioning member 17, and a second clamping mechanism 13, wherein the bottom plate 11 is used for carrying the electronic device 100, and the first clamping mechanism 12, the positioning member 17, and the second clamping mechanism 13 are installed.

As shown in fig. 3, the bottom plate 11 may have a substantially plate shape. The bottom plate 11 has a bearing surface 11a (the bearing surface 11a is shaded in fig. 3), the bearing surface 11a is a plane, and a normal of the bearing surface 11a may be along the thickness direction of the bottom plate 11. The carrying surface 11a is used for placing the electronic device 100. The bottom plate 11 may further have a plurality of mounting grooves for respectively mounting the first clamping mechanism 12, the second clamping mechanism 13 and the positioning member 17, and the mounting grooves and the bearing surface 11a are located on the same side of the bottom plate 11. The mounting groove 11d for mounting the first fixture 12 and the mounting groove 11c for mounting the second fixture 13 may be recessed relative to the bearing surface 11a, so that the portion of the first fixture 12 mounted in the mounting groove 11d and the portion of the second fixture 13 mounted in the mounting groove 11c may be located below the electronic device 100, and the portions may perform mechanical movement below the electronic device 100. The mounting groove 11d may be located approximately at the middle of the bottom plate 11, and the mounting groove 11c may be located at the lower side of the mounting groove 11 d. The mounting groove 11e of the mounting location 17 may be located at the top end of the bottom plate 11. It should be understood that the above descriptions of orientations (lower, top, etc.) are presented in the context of FIG. 3.

The base plate 11 has a positioning center, which may be the geometric center of the base plate 11 (e.g., rectangular when the base plate 11 has a regular shape); or may be a set point on the base plate 11 (the shape of the base plate 11 is not limited), and the set point may be located at any suitable position on the base plate 11, such as approximately the middle of the base plate 11. The positioning center is used to determine the position of a reference plane of the electronic device 100, which can be used as a test reference for the electronic device 100. The reference plane may be, for example, the plane of symmetry I. Of course, the reference plane is not limited to the symmetry plane I, and may be a plane of the electronic device 100 that can be used as a test reference. In this embodiment, the positioning center may be a center of a circular positioning groove 11b formed in the bottom plate 11, and the circular positioning groove 11b may be located in the installation groove 11 d.

In other embodiments, the shape and configuration of the bottom plate 11 may be designed as desired, and is not limited to the above.

As shown in fig. 4, the first chuck 12 may include a sun gear 121, a first rack 122, a second rack 126, a first spring 124, a second spring 129, a first clamp 125, and a second clamp 127.

The central gear 121 may be a cylindrical gear, and specific structural parameters (such as diameter, number of teeth, pitch, etc.) of the central gear 121 may be designed according to actual needs, which is not limited in this embodiment. As shown in fig. 3 and 4, the central gear 121 is rotatably mounted in the circular positioning groove 11b of the bottom plate 11 and is lower than the bearing surface 11a of the bottom plate 11 (i.e. at a certain distance from the bearing surface 11a, the same applies below). The center of the center gear 121 coincides with the positioning center, and the axis of the center gear 121 is substantially along the thickness direction of the base plate 11. For reducing the rotation resistance of the central gear 121, ensuring the stable stress of the central gear 121 and ensuring the stable and smooth rotation of the central gear 121, the central gear 121 can be matched with a double bearing installed on the bottom plate, and the rotation is realized through the double bearing. The double bearing comprises two bearings with coincident axes. Of course, the design of the duplex bearing is not essential.

Referring to fig. 3 and 4, the first rack 122 and the second rack 126 are both located in the mounting groove 11d and lower than the bearing surface 11a of the bottom plate 11. The first and

second racks

122 and 126 may be arranged centrosymmetrically with respect to the sun gear 121.

The first rack 122 may have a substantially plate-like or plate-like shape, and may include a first rack portion 122a and a first mounting portion 122b, and the first rack portion 122a and the first mounting portion 122b may be connected in an approximately "7" configuration. The first rack portion 122a has a plurality of gear teeth, and the gear teeth of the first rack portion 122a are engaged with the sun gear 121. The first mounting portion 122b is spaced from the sun gear 121. A first clamp 125 is fixed to a surface of one end of the first mounting portion 122b remote from the first rack portion 122 a.

The second rack 126 may also be substantially sheet-shaped or plate-shaped, and may include a second rack portion 126a and a second mounting portion 126b, and the second rack portion 126a and the second mounting portion 126b may be connected to form an approximately "7" shape. The second rack portion 126a and the first rack portion 122a are located on opposite sides of the sun gear 121, respectively. The second rack portion 126a has the same structure as the first rack portion 122a, and the second rack portion 126a has a plurality of teeth, and the teeth of the second rack portion 126a mesh with the sun gear 121. The second mounting portion 126b is identical or substantially identical in construction to the first mounting portion 122b, with the second mounting portion 126b being spaced from the sun gear 121. A second clip 127 is fixed to a surface of the second mounting portion 126b at an end remote from the second rack portion 126 a.

In the meshing mechanism formed by the first rack 122, the central gear 121 and the second rack 126, the first rack 122 and the second rack 126 can synchronously move in opposite directions, i.e. the two can simultaneously and equidistantly move towards or away from each other. The moving direction of the first rack 122 and the second rack 126 may be a first direction. Referring to fig. 1, in the view of fig. 1, the first direction may be, for example, a lateral or left-right direction. Of course, this is only an example, and the first direction may be other suitable directions, for example, the first direction may be a long side direction of the bottom plate 11 in fig. 1 (the first direction is perpendicular to the symmetry axis). Therefore, the first clamping member 125 on the first rack 122 and the second clamping member 127 on the second rack 126 can also move in opposite directions synchronously, and the moving direction of the first clamping member 125 and the second clamping member 127 is also the first direction.

In this embodiment, in order to ensure that the first rack 122 and the second rack 126 move smoothly in a certain direction, the first rack 122 and the second rack 126 may be guided by a guide rail.

For example, as shown in fig. 4, the first clamping mechanism 12 may further include a first guide rail 123 and a second guide rail 128, and both the first guide rail 123 and the second guide rail 128 may be fixed to a bottom wall of the mounting groove 11d (shown in fig. 3), and are respectively located on two opposite sides of the central gear 121. The first guide rail 123 and the second guide rail 128 may be both approximately in the shape of a linear strip or a linear block, and the specific structures of the first guide rail 123 and the second guide rail 128 are not limited, and may be designed according to actual needs. The first rail 123 and the second rail 128 both extend along a straight line, and both extend in the first direction. The first mounting portion 122b of the first rack 122 forms a sliding fit with the first rail 123, wherein the first clamping member 125 and the first rail 123 are respectively located on opposite sides (e.g., upper and lower sides in fig. 4) of the first mounting portion 122 b. The first guide rail 123 can guide the first rack 122. The second mounting portion 126b of the second rack 126 forms a sliding fit with the second rail 128, wherein the second clamping member 127 and the second rail 128 are respectively located on opposite sides (e.g., upper and lower sides in fig. 4) of the second mounting portion 126 b. The second rail 128 can guide the second rack 126.

In other embodiments, at least one of the first rail 123 and the second rail 128 may be a structural feature on the base plate 11, and not a separate component from the base plate 11. Alternatively, the design of the first and/or

second guide rails

123 and 128 is not essential, and the first and/or second mounting

portions

122b and 126b may be guided by sliding engagement with the groove walls of the mounting groove 11 d.

As shown in fig. 3 and 4, one end of the first spring 124 may be fixed. To facilitate manufacturing the base plate 11 and assembling the first spring 124, a first spring holder 124a may be fixed in the mounting groove 11d of the base plate 11, the first spring holder 124a being adjacent to the first mounting portion 122b and lower than the bearing surface 11a of the base plate 11, and one end of the first spring 124 being connected to the first spring holder 124 a. Of course, the first spring fixing member 124a is not necessarily required, and one end of the first spring 124 may be directly fixed to the base plate 11. The other end of the first spring 124 is connected to an end of the second rack bar portion 126 a. The first spring 124 may elastically expand and contract in the first direction.

The material of the first spring 124 can be selected according to the requirement, for example, a piano wire is used. The stiffness (i.e., spring rate) of the first spring 124 may be greater than or equal to 0.3, such that the first spring 124 can provide a sufficient spring force, for example, the minimum spring force provided by the first spring 124 is greater than the weight of the electronic device 100. The elongation of the first spring 124 may be greater than or equal to 100%. The above-mentioned parameter design of the first spring 124 is only an example, and the embodiment is not limited thereto. In other embodiments, other components capable of providing a spring force may be used in place of the first spring 124.

As shown in fig. 3 and 4, one end of the second spring 129 may be fixed. To facilitate manufacturing the base plate 11 and assembling the second spring 129, a second spring holder 129a may be fixed in the mounting groove of the base plate 11, the second spring holder 129a being adjacent to the second mounting portion 126b and lower than the bearing surface 11a of the base plate 11, and one end of the second spring 129 being connected to the second spring holder 129 a. Of course, the second spring holder 129a is not necessarily required, and one end of the second spring 129 may be directly fixed to the base plate 11. The other end of the second spring 129 is connected to an end of the first rack portion 122 a. The second spring 129 may be elastically extensible in the first direction.

The material of the second spring 129 can be selected according to the requirement, for example, a piano wire is used. The stiffness (i.e., spring rate) of the second spring 129 may be greater than or equal to 0.3, such that the second spring 129 can provide a sufficient spring force, for example, the minimum spring force provided by the second spring 129 is greater than the weight of the electronic device 100. The elongation of the second spring 129 may be greater than or equal to 100%. The above-mentioned design and material selection of the second spring 129 are only examples, and the embodiment is not limited thereto, for example, the second spring 129 and the first spring 124 may have different materials and parameters, respectively. In other embodiments, other components capable of providing a spring force may be used in place of the second spring 129.

When the first rack 122 and the second rack 126 move back to back, the first spring 124 and the second spring 129 are both stretched, the first spring 124 provides a first elastic force to the second rack 126, and the second spring 129 provides a second elastic force to the first rack 122, so that the first rack 122 and the second rack 126 have a tendency to move toward each other, which facilitates clamping of the electronic device 100 (described further below). That is, the first spring 124 and the second spring 129 can provide a clamping force for clamping the electronic device 100.

In other embodiments, a design relying on the first spring 124 and the second spring 129 to provide the clamping force is not required. For example, other members having elasticity may be used instead of the first spring 124 and the second spring 129; alternatively, other structures, such as a lead screw mechanism, may be used to provide the clamping force. The screw mechanism includes a screw and a slider forming a screw transmission with the screw, and the slider is connected to the first rack 122. When the screw rod rotates, the slider will drive the first rack 122 to move. When the first rack 122 moves to a position for holding the electronic device 100 (the second rack 126 also moves to a position for holding the electronic device 100), the screw and the slider are engaged with each other to prevent the first rack 122 from moving backward, so as to prevent the first rack 122 from separating from the electronic device 100, and thus the first rack 122 and the second rack 126 clamp the electronic device 100. The slider of the lead screw mechanism may also be connected to the second rack 126; or two screw mechanisms may be provided, and the first rack 122 and the second rack 126 are respectively connected with one screw mechanism. It should be appreciated that the screw mechanism is merely exemplary and that other configurations that maintain the first and/or

second racks

122, 126 in the clamped position may be devised as desired.

As shown in fig. 4, the first and

second clamping members

125, 127 may be identical or substantially identical in structure. The first clamping member 125 and the second clamping member 127 may be symmetrically disposed on opposite sides of the central gear 121, wherein the first clamping member 125 may be fixed to an end of the first mounting portion 122b, and the second clamping member 127 may be fixed to an end of the second mounting portion 126 b. As shown in fig. 3, the first clamping member 125 and the second clamping member 127 may both protrude from the bearing surface 11a of the bottom plate 11.

As shown in fig. 4 and fig. 1, when the electronic device 100 is clamped on the clamping device 10, two short sides of the electronic device 100 may be placed parallel to the first direction, and the first clamping member 125 and the second clamping member 127 may respectively clamp two long sides of the electronic device 100, that is, the first clamping member 125 and the second clamping member 127 are respectively clamped on two opposite sides of the electronic device 100 in the first direction. Of course, this is merely an example, and the first clamping member 125 and the second clamping member 127 may clamp two short sides of the electronic device 100, respectively, as long as the first clamping mechanism 12 is arranged by rotating 90 degrees.

In this embodiment, in order to firmly clamp the electronic device 100 and prevent the electronic device 100 from coming off when the clamping apparatus 10 moves or turns over, both the first clamping member 125 and the second clamping member 127 may have an inclined surface structure.

Taking the first clamping member 125 shown in fig. 5 as an example, the first clamping member 125 may have a first clamping surface 125a and a first vertical surface 125b, and the first clamping surface 125a is connected with the first vertical surface 125b in a bending manner. As shown in fig. 4 and 3, the first clamping surface 125a and the first vertical surface 125b face the second clamping member 127. The first clamping surface 125a is away from the bottom plate 11 and inclined toward the bottom plate 11 (i.e., inclined toward the second clamping member 127), and the first clamping surface 125a is used for contacting and abutting against the electronic device 100. The first vertical surface 125b is close to the bottom plate 11, and a normal of the first vertical surface 125b may be substantially parallel to the bearing surface 11a of the bottom plate 11, that is, a normal of the first vertical surface 125b may be substantially perpendicular to a normal of the bottom plate 11 (i.e., a thickness direction of the bottom plate 11).

Fig. 6 is a schematic structural diagram illustrating the first clamping member 125 and the second clamping member 127 clamping the electronic device 100 based on the L-direction view in fig. 5. As shown in fig. 6, the slope structure of the second clamping member 127 is symmetrical to the slope structure of the first clamping member 125. The second clamping member 127 may have a second clamping surface 127a and a second vertical surface 127b, and the second clamping surface 127a is connected with the second vertical surface 127b in a bending manner. As shown in fig. 4 and 3, the second clamping surface 127a and the second vertical surface 127b face the first clamping member 125. The second clamping surface 127a is away from the bottom plate 11 and inclined toward the bottom plate 11 (i.e., inclined toward the first clamping member 125), and the second clamping surface 127a is used for contacting and abutting against the electronic device 100. The second vertical surface 127b is close to the bottom plate 11, and a normal line of the second vertical surface 127b may be substantially parallel to the bearing surface 11a of the bottom plate 11, that is, a normal line of the second vertical surface 127b may be substantially perpendicular to a normal line of the bottom plate 11 (i.e., a thickness direction of the bottom plate 11).

As shown in fig. 6, the first clamping surface 125a and the second clamping surface 127a respectively support against two side surfaces of the electronic apparatus 100. Since the first clamping surface 125a and the second clamping surface 127a are both inclined, the two surfaces can respectively apply the pressure f1 and the pressure f2 to the electronic device 100, which are directed to the bottom plate 11, so that the electronic device 100 can be reliably attached to the bottom plate 11, and is not easy to be separated from the clamping device 10 when the clamping device 10 moves or turns over.

As can be seen from the above principle analysis, at least one of the first clamping member 125 and the second clamping member 127 has the slope structure, which can function to reliably fix the electronic device 100, and the design of the first clamping member 125 and the second clamping member 127 having the slope structure is only an example. In other embodiments, the ramp structures in both first and

second clamp pieces

125 and 127 are not required.

In addition, since the first clamping member 125 has the first vertical surface 125b, the first clamping member 125 is easily mounted to the first rack 122, and the end of the first clamping member 125 mounted to the first rack 122 can be ensured to have a moderate size, so that the first clamping member 125 has sufficient structural strength. Also, since the second clamping member 127 has the second vertical surface 127b, the second clamping member 127 is easy to mount, and the end of the second clamping member 127 mounted to the second rack 126 can be ensured to have a moderate size, so that the second clamping member 127 has sufficient structural strength.

In other embodiments, the slope structure of the first clamping member 125 may not include the first vertical surface 125b, i.e., the surface of the side of the first clamping member 125 facing the second clamping member 127 is a flat surface rather than a folded surface, and the flat surface is inclined toward the second clamping member 127. And/or, the slope structure of the second clamping member 127 may not include the second vertical surface 127b, that is, the surface of the side of the second clamping member 127 facing the first clamping member 125 is a flat surface rather than a folded surface, and the flat surface is inclined toward the first clamping member 125.

In the first clamping mechanism 12 of this embodiment, since the first clamping member 125 and the second clamping member 127 are symmetrically distributed on two sides of the central gear 121, and the first clamping member 125 and the second clamping member 127 can always move in opposite directions, after the electronic device is placed between the first clamping member 125 and the second clamping member 127, the first clamping member 125 and the second clamping member 127 can be symmetrically distributed about a symmetry plane I of the electronic device 100 (as shown in fig. 1, taking a reference plane of the electronic device 100 as an example of the symmetry plane I), and a center of the central gear 121 is on the symmetry plane I. Therefore, the position of the symmetry plane I of the electronic device 100 can be located according to the positions of the first clamping member 125 and the second clamping member 127. Such design characteristics are suitable for electronic device 100 having any dimensions in the first direction.

As shown in fig. 3 and 7, the positioning member 17 and the first chuck 12 are located on the same side of the bottom plate 11 in the thickness direction (for example, on the upper side of the bottom plate 11 in fig. 3). The positioning member 17 may be near an edge of the base plate 11, for example near an edge of a short side of the base plate 11. The positioning members 17 may be two, and the two positioning members 17 may be symmetrically distributed on opposite sides of the positioning center of the bottom plate 11. Each positioning member 17 is fixed to the base plate 11. For example, the bottom plate 11 may be provided with an installation groove 11e for installing the positioning member 17. Each positioning member 17 may include a positioning portion 171 and a support 172 connected together, the positioning portion 171 may have an approximately square cylindrical shape, and the support 172 may have an approximately elliptical cylindrical shape. The support 172 is installed in the installation groove 11e, and the positioning portion 171 extends out of the installation groove 11e and protrudes from the bearing surface 11 a. The positioning member 17 of this structure is easily mounted on the base plate 11.

As shown in fig. 7, the positioning portion 171 may have a third clamping surface 171a and a third vertical surface 171b, and the third clamping surface 171a and the third vertical surface 171b are connected by bending. As shown in fig. 3, the third clamping surface 171a and the third vertical surface 171b face the second clamping mechanism 13. The third clamping surface 171a is away from the bottom plate 11 and is inclined toward the bottom plate 11 (i.e., inclined toward the second clamping mechanism 13), and the third clamping surface 171a is used for contacting and abutting against the electronic device 100. The third vertical surface 171b is close to the bottom plate 11, and a normal of the third vertical surface 171b is substantially parallel to the bearing surface 11a of the bottom plate 11, that is, a normal of the third vertical surface 171b is substantially perpendicular to a normal of the bottom plate 11. The inclined surface of the positioning portion 171 is beneficial to abut against the electronic device 100, so as to prevent the electronic device 100 from falling out when the clamping device 10 is moved or turned over (as will be described further below). In addition, since the positioning member 17 has the third vertical surface 171b, it is possible to ensure that the positioning member 17 has a moderate size at an end thereof near the bottom plate 11, thereby providing the positioning member 17 with sufficient structural strength.

The above structure and number of the positioning members 17 and the design of the installation grooves of the bottom plate 11 are only examples, and the structure and number of the positioning members 17 and the connection manner of the positioning members 17 and the bottom plate 11 can be flexibly designed according to the product requirements, and are not limited to the above description. For example, in other embodiments, the surface of the positioning portion 171 on the side facing the second chuck 13 is a flat surface rather than a folded surface, and the flat surface is inclined toward the second chuck 13. The positioning member may have only the positioning portion 171 without the seat 172.

The positioning member 17 can cooperate with the second clamping mechanism 13 to clamp the electronic device 100 in the second direction. Wherein, the positioning member 17 is used as a positioning reference of the electronic device 100 in the second direction. The structure of the second clamping mechanism 13 will be described in detail, and then the principle of the positioning member 17 and the second clamping mechanism 13 clamping the electronic device 100 together will be described.

Referring to fig. 3 and 4, the second clamping mechanism 13 and the positioning member 17 are respectively located on two opposite sides of the central gear 121. As shown in fig. 8, the second chuck 13 may include a third guide rail 131, a slide table 132, a third spring 133, and a third clamp 134.

The third guide rail 131 may be approximately in a linear bar shape or a linear block shape, and the specific structure of the third guide rail 131 is not limited, and may be designed according to actual needs. The third guide rail 131 extends along a straight line, and the extending direction of the third guide rail 131 is a second direction (as shown in fig. 1) perpendicular to the first direction. As shown in fig. 3, the third rail 131 may be fixed in a mounting groove on the base plate 11.

The sliding table 132 may be approximately block-shaped or plate-shaped, and the specific structure of the sliding table 132 is not limited, and may be designed according to actual needs. The slide table 132 straddles the third guide rail 131, one side (e.g., the lower side in fig. 8) of the slide table 132 is slidably connected to the third guide rail 131 so that the slide table 132 can slide along the third guide rail 131, and the other side (e.g., the upper side in fig. 8) of the slide table 132 opposite thereto is mounted with a third clamp 134.

As shown in fig. 3 and 8, one end of the third spring 133 may be fixed. To facilitate the manufacture of the base plate 11 and the assembly of the third spring 133, a third spring holder 133a may be fixed in the mounting groove of the base plate 11, the third spring holder 133a being lower than the bearing surface 11a of the base plate 11. The third spring fixing member 133a may be adjacent to the sun gear 121 and between the sun gear 121 and the slide table 132. One end of the third spring 133 is connected to the third spring holder 133 a. Of course, the third spring holder 133a is not necessarily required, and one end of the third spring 133 may be directly fixed to the base plate 11. The other end of the third spring 133 is connected to the sliding table 132, for example, a connecting portion may extend from the sliding table 132, and the other end of the third spring 133 is connected to the connecting portion.

The third spring 133 may elastically expand and contract in the second direction. When the slide table 132 moves away from the positioning member 17, the third spring 133 is stretched, and the third spring 133 will provide an elastic force to the slide table 132, which is opposite to the moving direction of the slide table 132. The third spring 133 can provide a clamping force (to be described further below) that clamps the electronic device 100 in the second direction.

As shown in fig. 8, there may be two third springs 133, and two third springs 133 are arranged side by side with the slide table 132 and are respectively installed at opposite sides of the slide table 132. Accordingly, there may be two third spring holders 133 a. Two third spring holders 133a are arranged side by side with the slide table 132 and are respectively installed at opposite sides of the slide table 132. The two third springs 133 are beneficial to smooth stress of the sliding table 132, and ensure that the electronic device 100 is stably clamped in the second direction. Of course, the design of the two third springs 133 is only an example. The number of the third springs 133 may be one or more than two according to actual needs. When the number of the third spring 133 is one, the position of the third spring 133 can be properly designed to ensure that the sliding table 132 is stressed smoothly.

The material of the third spring 133 may be selected according to the requirement, for example, a steel wire. The stiffness (i.e., spring rate) of the third spring 133 may be greater than or equal to 0.3, such that the third spring 133 can provide a sufficient spring force, for example, the minimum spring force provided by the third spring 133 is greater than the gravity of the electronic device 100. The elongation of the third spring 133 may be greater than or equal to 100%. The above material selection and parameter design of the third spring 133 are only examples, and the embodiment is not limited thereto. In other embodiments, other members capable of providing elastic force may be used instead of the third spring 133.

As shown in fig. 8, the third clamp 134 is fixed to the slide table 132 so as to be movable following the slide table 132. The third clamping member 134 may include a holder 134b and a clamping portion 134a connected thereto. The seat 134b may be approximately cylindrical, and the seat 134b is fixed (e.g., by screwing) to the slide 132. The clamping portion 134a is located on a side of the support departing from the sliding table 132, the clamping portion 134a may be approximately in a truncated cone shape, one end (i.e., a small end) of the clamping portion 134a with a smaller bottom diameter is close to the sliding table 132, and one end (i.e., a large end) of the clamping portion 134a with a larger bottom diameter is far away from the sliding table 132. The truncated cone structure of the third clamping member 134 also belongs to a ramp structure. The third clamping member 134 of this structure facilitates mounting to the base plate 11.

The third clamping member 134 can clamp the electronic device 100 in the second direction together with the positioning member 17. The third clamping member 134 is configured to firmly clamp the electronic device 100, so as to prevent the electronic device 100 from falling out when the clamping device 10 is moved or turned over (as will be described further below). In addition, since the clamping portion 134a may have a truncated cone structure, the truncated cone side of the clamping portion 134a is a uniform symmetrical surface, which does not affect the clamping of the clamping portion 134a to the electronic device 100 even if the third clamping member 134 is twisted around its axis (e.g., due to assembly error). There may be two third clamping members 134, two third clamping members 134 may be spaced apart, and both may be arranged substantially along the first direction (shown in connection with fig. 1). The two third clamping members 134 can clamp the electronic device 100 more firmly.

The above structure of the third clamping member 134 is only an example, and the embodiment is not limited thereto. For example, the clamping portion 134a may have another slope structure, for example, the clamping portion 134a may be an oblique truncated cone or an oblique truncated pyramid (a regular truncated pyramid or an oblique truncated pyramid), the end of the clamping portion 134a with the smaller bottom area (the area of the bottom surface) is close to the sliding table 132, and the end with the larger bottom area is far from the sliding table 132. Alternatively, the third clamping member 134 may include only a slope structure directly fixed to the slide table 132 without the support 134b, and the slope structure may be a truncated cone, a truncated pyramid, or a slope structure in the first clamping member 125. The number of the third clamping members 134 is not limited to two, and may be one or more than three, for example.

Fig. 9 is a schematic structural diagram illustrating the electronic device 100 clamped by the third clamping member 134 and the positioning member 17 from the first direction in fig. 1. As shown in fig. 9, the surface of the clamping portion 134a of the third clamping member 134 and the third clamping surface 171a of the positioning member 17 respectively abut against two side surfaces of the electronic device 100. Since the surface of the clamping portion 134a and the third clamping surface 171a are both inclined, the pressure f3 and the pressure f4 directed toward the bottom plate 11 can be applied to the electronic device 100, respectively, so that the electronic device 100 can be reliably attached to the bottom plate 11 and is not easily detached from the clamping device 10 when the clamping device 10 is moved or turned over.

As can be seen from the above principle analysis, at least one of the third clamping member 134 and the positioning member 17 has a slope structure, which can function to reliably fix the electronic device 100, and the design of the third clamping member 134 and the positioning member 17 having slope structures is only an example. In other embodiments, neither the ramp structures in the third clamping member 134 nor the positioning member 17 are necessary.

When the electronic device 100 is clamped by using the clamping device 10, the first clamping member 125 and the second clamping member 127 are driven to move back to back for a certain distance, the third clamping member 134 is driven to move back to the positioning member 17 for a certain distance, and then the electronic device 100 is grabbed and placed in the clamping device 10. At this time, one side of the electronic device 100 abuts against the positioning element 17 to clamp and position the electronic device 100 in the second direction, and then the first clamping element 125 and the second clamping element 127 are driven to move towards each other, and the third clamping element 134 is driven to move towards the positioning element 17 until the first clamping element 125, the second clamping element 127 and the third clamping element 134 all abut against the electronic device 100, thereby completing clamping of the electronic device 100.

As can be seen from the above clamping process, the positioning element 17 provides a positioning reference for the electronic device 100 in the second direction, so that the electronic device 100 has a determined position coordinate reference (i.e., a position coordinate of a contact position between the electronic device 100 and the positioning element 17), and the electronic devices 100 with different sizes have a uniform position coordinate reference (since the electronic devices 100 with different sizes are all positioned by the same positioning element 17), thereby improving the positioning accuracy of the electronic device 100. Moreover, the positioning element 17 can also clamp the electronic device 100 in the second direction together with the second clamping mechanism 13, which can perform bidirectional limiting on the electronic device 100 in the second direction, thereby enhancing the clamping force and the clamping stability of the clamping device 10. In addition, since the first clamping mechanism 12 always enables the symmetry axis of the electronic device 100 to pass through the positioning center of the clamping device 10, the geometric center of the electronic device 100 is convenient to position, and the positioning accuracy of the electronic device 100 is improved.

In addition, the distance between the first clamping member 125 and the second clamping member 127 is flexibly adjustable, and the distance between the third clamping member and the positioning member 17 is flexibly adjustable, so that the clamping device 10 can clamp any size of electronic device 100, that is, the clamping device 10 has flexibility and good universality. This can greatly reduce the cost of production testing or daily use. Taking production testing as an example, the same clamping device 10 can be used for different models of electronic devices 100 or different testing devices, and different clamps do not need to be specially designed and manufactured to be matched with different electronic devices 100 or different testing devices, so that the design, manufacturing and maintenance costs can be greatly saved. Moreover, the defects that debugging and verification are needed after the clamps are replaced and equipment is stopped can be avoided by using the uniform clamping device 10, the manufacturing cost can be greatly reduced, and the production efficiency can be ensured.

In this embodiment, the clamping device 10 can carry the electronic device 100 to circulate on the production line, so as to perform corresponding tests at each test station. In order to ensure that the clamping device 10 can smoothly circulate on the production line, a bearing mechanism may be provided on the clamping device 10.

As shown in particular in fig. 2, the bearing mechanism 15 may be mounted at an edge, e.g. a corner, of the base plate 11. The number of the bearing mechanisms 15 may be four, and the four bearing mechanisms 15 may be distributed at four corners of the base plate 11. Of course, it is not necessary that the bearing means 15 is located at the corners, as long as it is located at the edge of the base plate 11. At least one of the bearing mechanisms 15 may be, but is not limited to, 4, and may be, for example, two, and the two bearing mechanisms 15 may be distributed on opposite sides of the bottom plate 11. The structure relating to the single bearing mechanism 15 will be described in detail below.

As shown in fig. 10 and 11, the bearing mechanism 15 may include a cover plate 151, a positioning pin 152, a first spacer 153, a rotating shaft 154, a bearing 155, and a second spacer 156.

As shown in fig. 11 and 12, the cover 151 may have a plate shape or a plate shape, and may be fixed to the base plate 11. For example, the cover plate 151 may be opened with coupling holes 15a, the base plate 11 may be formed with bearing grooves 11f, and the cover plate 151 may be fixed in the bearing grooves 11f by fasteners (e.g., screws, not shown) installed in the coupling holes 15 a. To ensure the fit and appearance, the cover plate 151 may be adapted to the shape of the bearing groove 11f and the bottom plate 11. The cover plate 151 may further have a pin hole 15b and a shaft hole 15c, the pin hole 15b may be located inside the bottom plate 11, and the shaft hole 15c may be located near the edge of the bottom plate 11. Of course, the structure of the cover 151 and the connection manner between the cover 151 and the base plate 11 are only examples, and the embodiment is not limited thereto. For example, the cover 151 may be fixed to the base plate 11 by bonding, welding, or clipping.

Referring to fig. 11 and 12, the positioning pin 152 may pass through the pin hole 15b of the cover plate 151 and the pin mounting hole 11g in the bearing groove 11f, and the positioning pin 152 may pre-position the cover plate 151 to facilitate subsequent fixing of the cover plate 151 in the bearing groove 11 f. In other embodiments, the locating pin 152 may be eliminated.

As shown in fig. 11 and 12, the shaft 154 and the bearing 155 are located on the same side of the cover plate 151 (e.g., the lower side of the cover plate 151 in fig. 11). The rotation shaft 154 may pass through the shaft hole 15c of the cover plate 151 and the shaft mounting hole 11h in the bearing groove 11 f. The bearing 155 is near the edge of the base plate 11. The bearing 155 includes an inner ring 155a and an outer ring 155b, and the outer ring 155b surrounds an outer circumference of the inner ring 155 a. The inner ring 155a is fixed to the rotary shaft 154. The outer ring 155b may be partially exposed out of the bearing groove 11f, that is, the outer ring 155b of the bearing 155 may be partially protruded from the edge of the base plate 11. The outer ring 155b can rotate. In other embodiments, other bodies of revolution capable of rotating about the axis of rotation 154 may be used in place of the bearing 155.

As shown in fig. 11 and 12, the first spacer 153 and the second spacer 156 are disposed on the rotating shaft 154 and located at two opposite sides of the bearing 155 in the axial direction. The first gasket 153 and the second gasket 156 may function to limit the bearing 155, seal the bearing 155, and reduce wear. Of course, the first gasket 153 and the second gasket 156 are not necessary.

Referring to fig. 2, when the clamping device 10 moves in the assembly line (the assembly line is in a flow channel shape and has a rib), the outer ring of the bearing 155 contacts the rib of the assembly line and rotates, so that the clamping device 10 can move smoothly in the assembly line. In other embodiments, the chuck 10 may not need to be moved in the process line, in which case the bearing mechanism 15 may be eliminated.

In this embodiment, in order to meet the requirements of different test stations on the posture of the electronic device 100 (for example, the screen of the electronic device 100 faces upward or downward, the USB port of the electronic device 100 faces forward or backward, and the like), the clamping device 10 on which the electronic device 100 is clamped needs to be shifted or posture-adjusted. In order to accurately position the clamping device 10 and drive the clamping device 10 to move, the clamping device 10 may have a positioning block.

As shown in fig. 3 and 13, the clamping device 10 may further include three positioning blocks 18, and each positioning block 18 may be mounted on an edge of the base plate 11, so that the driving device (e.g., a robot gripper) can grasp the clamping device 10. Two of the positioning blocks 18 may be located on the side of the base plate 11 where the positioning element 17 is installed, and another positioning block 18 may be located on the opposite side of the first two positioning blocks 18. Of course, the number and the positions of the positioning blocks 18 are merely examples, and the embodiment is not limited thereto. For example, the positioning blocks 18 may be two or more than four; the position of the positioning block 18 can be set arbitrarily, so as to facilitate the grabbing. The structure associated with the single locating block 18 will be described in detail below.

As shown in fig. 13, the positioning block 18 may include a matching portion 181 and a grabbing portion 182 connected together, the matching portion 181 and the grabbing portion 182 may form an approximately T-shaped structure, the matching portion 181 may be a transverse side of the T-shape, and the grabbing portion 182 may be a vertical side of the T-shape. The engaging portion 181 may be formed with a connecting hole 181a, and the grasping portion 182 may be formed with a pin hole 182 a. Accordingly, the edge of the bottom plate 11 may be provided with a fitting groove 11 k. The bottom surface of the matching groove 11k may be provided with a connecting hole 11m, and the bottom surface may be provided with a notch 11n, the notch 11n penetrates through the bottom surface, and the notch 11n is adjacent to the connecting hole 11m at a spacing. The positioning block 18 is fitted into the fitting groove 11k, wherein the fitting portion 181 is fitted to the bottom surface of the fitting groove 11k, and the coupling hole is aligned with the coupling hole, and a fastener (e.g., a screw, not shown) may be fitted into the coupling hole and the coupling hole to couple the fitting portion 181 to the base plate 11; the grasping portion 182 is inserted into the notch 11 n. When it is desired to grasp the chuck 10, the latch on the automated gripper can be inserted into the pin hole 182a and clamp the chuck 10, thereby driving the chuck 10 to move.

The structure of the positioning block 18 and the connection manner of the positioning block 18 and the bottom plate 11 are only examples, and the embodiment is not limited thereto. For example, the positioning block 18 may also be fixed to the bottom plate 11 by bonding, welding or clipping; the locating block 18 may also be provided without the pin hole 182a, for example, a raised feature may be used in place of the pin hole 182a from which the drive mechanism may grip the locating block 18. In other embodiments, the positioning block 18 may not be designed in relation thereto. For example, for a scenario in which the chuck 10 does not need to be transferred and oriented, the positioning block 18 is not designed. Or, the clamping device 10 needs to be transferred and posture-adjusted, but the clamping device 10 is sucked in an adsorption mode; or a raised feature may be formed or bored directly into the surface of the base plate 11 for the drive means to grasp the chuck from the hole or raised feature.

In this embodiment, during the circulation of the clamping device 10, the position of the clamping device 10 may be determined by the image recognition system. As shown in fig. 3 in particular, the clamping device 10 may further include a position Mark portion 16 (which may also be referred to as a Mark point). The position marker 16 may be approximately cylindrical (e.g., circular cylinder), and the position marker 16 is mounted in an identification hole on the base plate 11. The end face of the position mark part 16 can be flush with the surface of the bottom plate 11, and the color contrast between the position mark part 16 and the bottom plate 11 can be stronger (if the bottom plate 11 is black, the position mark part 16 is white), so that the image recognition system can be ensured to capture a clearer image of the clamping device 10, the position mark part 16 can be accurately positioned, and the position information of the clamping device 10 can be determined. Of course, the above design of the position mark portion 16 is merely an example, and the present embodiment is not limited thereto. In other embodiments, the position mark portion 16 may not be provided.

As shown in fig. 2 and 3, the clamping device 10 may include the identification portion 14, and the identification portion 14 may be disposed at any position on the surface of the bottom plate 11, for example, may be disposed on two opposite sides in the thickness direction of the bottom plate 11. The indicator 14 may be, for example, sheet-like or plate-like, but may have any other suitable shape. The identification portion 14 may be provided with an identification code, which may be, for example, a two-dimensional code, a bar code, or other form of code. The identification code carries unique identification information of the clamping device 10. During the testing process, the identification information in the identification code may be bound with the identification information (e.g., a product serial number) of the clamped electronic device 100, where the identification information of the electronic device 100 has been previously associated with information of the model, the size, the required test item, and the like of the electronic device 100. The binding relationship between the identification code and the identification information of the electronic device 100 can be dynamically updated, that is, the same identification code can be bound with the identification information of different electronic devices 100, and the former binding can be covered by the latter binding. Therefore, the same clamping device 10 can always establish unique corresponding relation with different electronic devices 100.

When the clamping device 10 carries the electronic device 100 to be transferred to the testing machine, the testing machine can obtain the identification information of the electronic device 100 clamped by the clamping device 10 by scanning the identification code on the clamping device 10, and then determine the test item corresponding to the electronic device 100, so as to perform personalized testing on the electronic device 100. The design can realize the mixed circulation of a plurality of clamping devices 10 in the same production line, and the electronic equipment 100 clamped by each clamping device 10 can be subjected to corresponding personalized test, so that the test efficiency is greatly improved, and disorder cannot occur. In other embodiments, the design associated with the identifier 14 described above is not required.

The clamping device 10 of the embodiment can be applied to an automated testing assembly line. For example, the clamping and testing of the electronic device 100 may be done automatically: the clamping device 10 circulating on the production line can be stopped by the stopping mechanism, and the rough positioning of the clamping device 10 is realized. The clamping device 10 can then be precisely positioned by a fine positioning mechanism (e.g., a lifter with pins) to accurately place the clamping device 10 in the clamping position. The actuator (e.g., an electric cylinder, a linear module, etc.) may then be used to provide power to pull the first clamping member 125 and the second clamping member 127 of the clamping device 10 apart, and to pull the third clamping member 134 apart relative to the positioning member 17. The electronic device 100 may be grasped by an automatic feeding mechanism (e.g., a robot) and placed into the clamping device 10. According to the external dimension of the clamped electronic device 100, the actuator retracts a corresponding distance and separates from the first clamping member 125, the second clamping member 127 and the third clamping member 134, so that the first clamping member 125, the second clamping member 127 and the third clamping member 134 clamp the electronic device 100. After the clamping is completed, the stopping mechanism and the fine positioning mechanism can release the clamping device 10, so that the clamping device 10 carrying the electronic equipment 100 flows in the assembly line, and various tests are performed.

In conclusion, the clamping device 10 can improve the positioning accuracy; due to the fact that the flexible and universal structure is high, the cost of design, manufacture and maintenance can be greatly saved, and production efficiency is improved; the device can realize the mixed flow and the test of various electronic equipment 100 in the same production line; the automatic test system can be applied to an automatic test assembly line, and greatly improves the test efficiency.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A clamping device of electronic equipment is characterized in that,

2. The clamping device of claim 1,

the clamping device comprises a central gear, a first rack and a second rack; the circle center of the central gear is superposed with the positioning center; the first rack and the second rack are respectively positioned at two opposite sides of the central gear and are meshed with the central gear, and the first rack and the second rack can synchronously move in the opposite directions and synchronously move in the opposite directions along the first direction through the meshing; the first clamping piece is fixed on the first rack, and the second clamping piece is fixed on the second rack.

3. The clamping device of claim 2,

the clamping device comprises a first elastic piece and/or a second elastic piece; wherein,

one end of the first elastic piece is fixed on the bottom plate, the other end of the first elastic piece is connected with the second rack, and the first elastic piece is used for providing first elastic force for the second rack so that the second rack has a moving trend close to the first rack;

one end of the second elastic piece is fixed on the bottom plate, the other end of the second elastic piece is connected with the first rack, and the second elastic piece is used for providing second elastic force for the first rack so that the first rack has a moving trend close to the second rack.

4. The clamping device as recited in claim 2 or 3,

the clamping device comprises a first guide rail and/or a second guide rail, wherein,

the first guide rail is fixed on the bottom plate, the first guide rail extends along the first direction, the first rack is slidably mounted on the first guide rail, and the first clamping piece is fixed on one side, away from the first guide rail, of the first rack;

the second guide rail is fixed to the bottom plate, the second guide rail extends along the first direction, the second rack is slidably mounted on the second guide rail, and the second clamping piece is fixed to one side, away from the second guide rail, of the second rack.

5. The clamping device as recited in any one of claims 1-4,

the clamping device comprises a third guide rail and a sliding table; the third guide rail is fixed to the bottom plate and extends along the second direction; the sliding table is slidably mounted on the third guide rail, and the third clamping piece is fixed on one side, deviating from the third guide rail, of the sliding table.

6. The clamping device of claim 5,

the clamping device comprises a third elastic piece, one end of the third elastic piece is fixed on the bottom plate, the other end of the third elastic piece is connected with the sliding table, and the third elastic piece is used for providing third elastic force for the sliding table, so that the sliding table has a moving trend close to the positioning piece.

7. The clamping device as recited in any one of claims 1-6,

one side of the first clamping piece, which faces the second clamping piece, is provided with a first vertical surface and a first clamping surface, the first vertical surface is close to the bottom plate, the first clamping surface is connected with the first vertical surface in a bending mode, and the first clamping surface is far away from the bottom plate and inclines towards the second clamping piece.

8. The clamping device as recited in any one of claims 1-7,

the locating element orientation one side of third holder has third vertical face and third clamping face, the third vertical face is close to the bottom plate, the third clamping face with the connection of buckling of third vertical face, the third clamping face is kept away from the bottom plate and to the third holder slope.

9. The clamping device as recited in any one of claims 1-8,

the third clamping piece is a cone frustum, an inclined cone frustum or a prismoid, one end of the third clamping piece with the smaller bottom area is close to the bottom plate, and one end of the third clamping piece with the larger bottom area is far away from the bottom plate.

10. The clamping device as recited in any one of claims 1-9,

the edge of the bottom plate is provided with a bearing groove; the clamping device comprises a rotating shaft, a bearing and a cover plate; the rotating shaft is fixed in the bearing groove; the bearing comprises an inner ring and an outer ring which are nested with each other, the inner ring is fixed on the periphery of the rotating shaft, the outer ring surrounds the periphery of the inner ring and can rotate relative to the inner ring, and the outer ring partially exposes out of the bearing groove; the cover plate is fixed in the bearing groove and fixedly connected with the rotating shaft, and the rotating shaft and the bearing are located on the same side of the cover plate.

11. The clamping device as recited in any one of claims 1-10,

the clamping device comprises an identification part, the identification part is installed on the surface of the bottom plate, and identification codes are arranged on the identification part.

12. The clamping device as recited in any one of claims 1-11,

the edge of the bottom plate is provided with a matching groove, and a notch is formed in the bottom wall of the matching groove; the clamping device comprises a positioning block, and the positioning block comprises a matching part and a grabbing part; the matching part is fixed in the matching groove, the grabbing part is connected with the matching part, an opening is formed in the grabbing part, and the grabbing part is inserted into the notch.