Middle frame jig and taking and placing mechanism

Abstract

The invention discloses a middle frame jig and a taking and placing mechanism. The middle frame jig comprises a base body, a power column, a positioning piece, a first connecting rod and a first bias pressing piece. The seat body is suitable for the middle frame to abut against in the first direction. The power column is installed on the base body and suitable for sliding between a first position and a second position in the first direction. The positioning piece is mounted on the seat body and is suitable for moving between a limiting position and an avoiding position; the positioning piece is suitable for abutting against the inner wall of the middle frame when located at the limiting position so as to position the middle frame. The inner wall of the middle frame is rough relative to the outer wall of the middle frame, so that positioning is facilitated; and at the avoiding position, the handle is far away from the inner wall of the middle frame to allow the middle frame to be taken and placed. The two ends of the first connecting rod are rotationally connected with the power column and the positioning piece around the axis perpendicular to the first direction. The first bias part is suitable for storing energy when the positioning part is located at the receding position and exerts force for enabling the positioning part to slide towards the limiting position on the positioning part by releasing the energy, resetting of the positioning part is achieved through the first bias part capable of storing the energy, and the occupied structural space is smaller.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of positioning products, in particular to a middle frame jig and a taking and placing mechanism. BACKGROUND

[0002] With the rapid improvement of science and technology and the rapid improvement of people's living conditions, smart watches have become an indispensable electronic device in people's daily life. With the continuous iteration and update of smart watches, the production capacity and quality requirements of the middle frame of the smart watch have also posed great challenges. In the actual production process of the middle frame of the smart watch, in order to ensure the production quality, the appearance of each product usually needs to be comprehensively detected; due to the complex shape of the middle frame of the smart watch, the multiple hollow areas, and the non-contact detection area, the positioning and handling of the middle frame of the smart watch become the bottleneck of automatic detection.

[0003] At present, the positioning of the middle frame of the watch is mostly through the extension of the motor or the cylinder to clamp the outer wall of the middle frame for positioning, which is easy to damage the outer wall of the middle frame, affect the appearance, and increase the cost of the motor and the cylinder, and increase the volume space of the positioning jig, which is not conducive to batch production. SUMMARY

[0004] The purpose of the present application is to overcome the above-mentioned defects or problems existing in the background art or to provide a material basis for overcoming the above-mentioned defects or problems existing in the background art, and to provide a middle frame jig and a taking and placing mechanism.

[0005] In order to achieve the above-mentioned purpose, the present application and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0006] Scheme one, a middle frame jig, comprising

[0007] a seat body; the seat body is suitable for abutting against the middle frame along a first direction;

[0008] a power column installed on the seat body and suitable for sliding along the first direction between a first position and a second position;

[0009] a positioning member installed on the seat body and suitable for moving between a limiting position and a giving position; the positioning member is suitable for abutting against the inner wall of the middle frame when in the limiting position, and is away from the inner wall of the middle frame when in the giving position;

[0010] a first connecting rod having two ends respectively connected with the power column and the positioning member in rotation about an axis perpendicular to the first direction, so that the first position corresponds to the limiting position and the second position corresponds to the giving position;

[0011] a first biasing member having one end acting on the seat body and the other end acting on the positioning member, and being suitable for storing energy when the positioning member is in the giving position and applying a force to the positioning member to make it slide to the limiting position by releasing the energy.

[0012] In the second aspect, based on the first aspect, the number of the power column is one, the number of the positioning member is at least two, the number of the first connecting rod and the first biasing member is the same as the number of the positioning member, and each of the first connecting rod and the first biasing member corresponds to one of the positioning member; each of the first connecting rod is rotatably connected with the power column.

[0013] In the third aspect, based on the first aspect, the positioning member is slidably connected with the seat body in a direction perpendicular to the first direction, or the positioning member is rotatably connected with the seat body about an axis perpendicular to the first direction.

[0014] In the fourth aspect, based on the first aspect, the positioning member is provided with an abutting inclined surface, the abutting inclined surface is inclined relative to the first direction and faces the seat body, and the abutting inclined surface is adapted to abut against the inner wall of the middle frame.

[0015] In the fifth aspect, based on the first aspect, the device further comprises a guide member, a second connecting rod and a second biasing member, the guide member is slidably connected with the seat body in a direction perpendicular to the first direction and slides between a guiding position and a avoiding position, the guide member is provided with a guiding plane parallel to the first direction, the guiding plane is adapted to abut against the inner wall of the middle frame at the guiding position and is away from the inner wall of the middle frame at the avoiding position, the two ends of the second connecting rod are rotatably connected with the power column and the guide member about an axis perpendicular to the first direction, so that the first position corresponds to the guiding position and the second position corresponds to the avoiding position; one end of the second biasing member is adapted to act on the seat body and the other end is adapted to act on the guide member, the second biasing member is adapted to store energy when the guide member is at the avoiding position and to apply a force to the guide member to make it slide to the guiding position by releasing the energy.

[0016] In the sixth aspect, based on the fifth aspect, the first biasing member and / or the second biasing member is a spring, rubber or a magnetic member with magnetic cooperation.

[0017] In the seventh aspect, based on the first aspect, the seat body comprises a bottom plate and a top plate, the positioning member is slidably connected with the seat body in a direction perpendicular to the first direction, the top plate is mounted on the bottom plate, and the top plate and the bottom plate are respectively abutted against the two ends of the positioning member in the first direction.

[0018] In the eighth aspect, a taking and placing mechanism comprises a taking and placing member and a middle frame jig according to any one of the first aspect to the seventh aspect, the taking and placing member comprises a mounting seat, a clamping jaw and a pressing member, the mounting seat is adapted to move in the first direction, the pressing member is mounted on the mounting seat and is adapted to press the power column to drive the power column to move and to keep the power column at the second position when the clamping jaw takes and places the middle frame; the clamping jaw is mounted on the mounting seat and is adapted to take and place the middle frame when the positioning member is at the avoiding position.

[0019] Scheme nine, based on scheme eight, the pressure applying member includes a floating head and a third biasing member, the floating head is adapted to apply pressure to the power column, two ends of the third biasing member act on the power column and the mounting seat respectively, the mounting seat is adapted to continue to move towards the seat body when the power column is in the second position, so as to store energy of the third biasing member, the third biasing member is adapted to release energy when the mounting seat moves away from the seat body, so as to keep the power column in the second position.

[0020] Scheme ten, based on scheme eight, the clamping jaw is adapted to move relative to the inner wall of the middle frame to clamp or release the middle frame, the part of the clamping jaw and / or the positioning member abutting against the inner wall of the middle frame is flexible.

[0021] From the above description of the present application and its preferred embodiments, relative to the prior art, the technical scheme of the present application and its preferred embodiments have the following beneficial effects due to the use of the following technical means:

[0022] 1. In scheme one and its preferred embodiments, a middle frame jig includes a seat body, a power column, a positioning member, a first connecting rod and a first biasing member.

[0023] The seat body is used for mounting various parts. The seat body is adapted to abut against the middle frame in a first direction, so as to limit the middle frame in the abutting direction.

[0024] The power column is installed on the seat body and is adapted to slide in the first direction between a first position and a second position.

[0025] The positioning member is installed on the seat body and is adapted to move between a limiting position and a yielding position. When the positioning member is in the limiting position, it is adapted to abut against the inner wall of the middle frame to position the middle frame, abut against the inner wall of the middle frame to prevent damage to the outer wall of the middle frame and affect the appearance. Moreover, the inner wall of the middle frame is relatively rough compared to the outer wall of the middle frame, which facilitates positioning. When in the yielding position, it is away from the inner wall of the middle frame to allow the middle frame to be taken out or put in. The first connecting rod is rotatably connected to the power column and the positioning member at both ends, so that the first position corresponds to the limiting position and the second position corresponds to the yielding position. The first biasing member is adapted to store energy when the positioning member is in the yielding position and to apply a force to the positioning member to make it slide to the limiting position through energy release, so that the positioning member can automatically reset to the limiting position and apply a force to the inner wall of the middle frame to ensure the positioning stability of the middle frame. The first biasing member with energy storage function is used to realize the resetting of the positioning member, which reduces the use of driving members such as motors, has lower cost and occupies smaller structure space.

[0026] 2. In Scheme 2 and its preferred embodiments, the number of positioning components is at least two, and the number of first connecting rods and first biasing components is the same as the number of positioning components, and they correspond one-to-one to achieve a better limiting effect; the number of power columns is one, and each first connecting rod is rotatably connected to the power column to reduce the structural complexity of the product.

[0027] 3. In Scheme 3 and its preferred embodiments, the positioning member is adapted to be slidably connected to the seat body in a direction perpendicular to the first direction, or the positioning member and the seat body are rotatably connected about an axis perpendicular to the first direction, thereby realizing the corresponding movement.

[0028] 4. In Scheme 4 and its preferred embodiments, the base is adapted to be abutted by the middle frame along the first direction; the positioning member is provided with an abutting slope, the abutting slope is inclined relative to the first direction and faces the base, the abutting slope is adapted to abut against the inner wall of the middle frame, thereby applying a force towards the base to the middle frame through the abutting slope, so that the base and the positioning member clamp the middle frame, thereby improving the stability of the middle frame when it is placed.

[0029] 5. In Scheme 5 and its preferred embodiments, a guide member, a second connecting rod, and a second biasing member are also included. The guide member is adapted to be slidably connected to the seat body along a direction perpendicular to the first direction and slides between the guide position and the avoidance position. The guide member is provided with a guide plane parallel to the first direction. The guide plane is adapted to abut against the inner wall of the middle frame when in the guide position. The guide plane can guide the tilted middle frame, thereby making its posture better and assisting in the positioning of the middle frame. Similarly, it can position the inner wall of the middle frame to ensure the appearance of the outer wall of the middle frame. In the avoidance position, it is away from the inner wall of the middle frame, thereby allowing the middle frame to be picked up and put down. The second connecting rod is rotatably connected at both ends to the power column and the guide member about an axis perpendicular to the first direction, so that the first position corresponds to the guide position and the second position corresponds to the avoidance position. The direction of the corresponding force is changed through the second connecting rod. One end of the second biasing member acts on the seat body and the other end acts on the guide member to apply a force to the guide member to make it slide towards the guide position. It is suitable for storing energy when the guide member is in the avoidance position, and releasing the energy so that the guide member can automatically reset to the guide position and apply force to the inner wall of the middle frame to ensure the positioning stability of the middle frame. The reset of the guide member is achieved by using an energy-storing second biasing member, which reduces the use of drive components such as motors, resulting in lower cost and smaller structural space occupation.

[0030] 6. In Scheme 6 and its preferred embodiments, the first biasing component and / or the second biasing component are springs, rubber, or magnetic components with two magnetic components working together, thereby achieving the corresponding force application. The structure is simple and the cost is low.

[0031] 7. In Scheme 7 and its preferred embodiments, the seat includes a bottom plate and a top plate. The positioning member is adapted to slide in a direction perpendicular to the first direction with the seat. The top plate is installed on the bottom plate. The top plate and the bottom plate abut against the two ends of the positioning member along the first direction, so as to realize the installation of the positioning member and prevent the positioning member from moving in the first direction.

[0032] 8. In Scheme 8 and its preferred embodiments, a pick-and-place mechanism includes a pick-and-place component and the aforementioned middle frame fixture. The pick-and-place component includes a mounting base, a gripper, and a pressure-applying component. The mounting base is adapted to move along a first direction. The pressure-applying component is mounted on the mounting base and is adapted to apply pressure to the power column to drive the power column to move. It is also adapted to keep the power column in a second position when the gripper picks up or places the middle frame, thereby preventing the resetting of the positioning component from affecting the pick-and-place of the middle frame. The gripper is mounted on the mounting base to move with the mounting base and is adapted to pick up or place the middle frame when the positioning component is in the clearance position.

[0033] 9. In Scheme Nine and its preferred embodiments, the pressure-applying component includes a floating head and a third biasing component. The floating head is adapted to apply pressure to the power column. The two ends of the third biasing component act on the power column and the mounting base, respectively. The mounting base is adapted to continue moving towards the seat body when the power column is in the second position, so that the third biasing component stores energy. The third biasing component is adapted to release energy when the mounting base moves away from the seat body, so that the power column remains in the second position. This keeps the positioning component in the clearance position before the gripper leaves the working area of ​​the positioning component, preventing interference with the gripper's ability to pick up the middle frame. Using a third biasing component results in lower costs.

[0034] 10. In Scheme 10 and its preferred embodiments, the grippers are adapted to move relative to the inner wall of the middle frame to grip or release the middle frame, thereby ensuring the appearance of the middle frame. The portions of the grippers and / or positioning elements that abut against the inner wall of the middle frame are flexible to ensure that the middle frame is not damaged during contact. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments are briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a perspective view of the middle frame fixture in Example 1;

[0037] Figure 2 This is a schematic diagram of the guiding component in Example 1;

[0038] Figure 3 This is a schematic diagram of the positioning component in Example 1;

[0039] Figure 4 This is an assembly diagram of the power column, positioning component, and guide component in Example 1;

[0040] Figure 5 isometric view of the pick-and-place device in embodiment one;

[0041] Figure 6 schematic view of the structure of the pick-and-place device in embodiment one.

[0042] Explanation of main reference signs:

[0043] seat body 1; bottom plate 11; top plate 12; abutting surface 121; power column 2; positioning device 3; abutting inclined surface 31;

[0044] first connecting rod 4; first biasing device 5; guiding device 6; guiding plane 61; second connecting rod 7; second biasing device 8; pick-and-place device 9; mounting seat 91; sliding hole 911; limiting surface 9111; pressing device 92; floating head 921; third biasing device 922; clamping jaw 93;

[0045] first direction 10; DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as exclusion of other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0047] In the claims, specification, and above drawings of the present application, unless otherwise explicitly limited, the use of the terms "first", "second", or "third" etc. is intended to distinguish different objects, and is not intended to describe a particular order.

[0048] In the claims, specification, and above drawings of the present application, unless otherwise explicitly limited, for the terms of orientation, such as the use of the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise" etc. indicate the orientation or positional relationship based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0049] In the claims, the specification, and the drawings of the present application, terms such as "fixedly connected" or "fixedly connected" should be construed broadly to encompass both a direct connection and an indirect connection unless otherwise expressly stated.

[0050] In the claims, the specification, and the drawings of the present application, the terms "including", "having", and their derivatives, are intended to be "including but not limited to".

[0051] Reference Figures 1-6 A pick-and-place mechanism comprising a pick-and-place member 9 and a middle frame jig.

[0052] Reference Figures 1-4 The middle frame jig comprises a seat body 1, a power column 2, a positioning member 3, a first connecting rod 4, a first biasing member 5, a guide member 6, a second connecting rod 7, and a second biasing member 8. The middle frame refers to an object with a through hole or a groove in the middle part, such as a watch middle frame or a mobile phone middle frame. The inner wall of the middle frame is the wall surface forming the through hole or the groove.

[0053] Reference Figure 1 The seat body 1 is adapted to abut against the middle frame in a first direction 10; the seat body 1 comprises a bottom plate 11 and a top plate 12, the top plate 12 is installed on the bottom plate 11 by screws, and the top plate 12 is provided with an abutting surface 121 perpendicular to the first direction 10, so as to abut against the middle frame in the first direction 10. In this embodiment, the first direction 10 is the up-down direction.

[0054] Reference Figure 1 , Figure 3The positioning element 3 is installed on the base 1 and is adapted to move between a limiting position and a yielding position. For example, the positioning element 3 is adapted to be slidably connected to the base 1 along a direction perpendicular to the first direction 10, or the positioning element 3 and the base 1 are rotatably connected about an axis perpendicular to the first direction 10. In this embodiment, the positioning element 3 is adapted to be slidably connected to the base 1 along a direction perpendicular to the first direction 10. Furthermore, after the top plate 12 is installed on the bottom plate 11, the top plate 12 sits above the positioning element 3, and the top plate 12 and the bottom plate 11 respectively abut against the two ends of the positioning element 3 along the first direction 10 to prevent the positioning element 3 from moving along the first direction 10. The positioning member 3 has a hook structure, which is suitable for abutting against the inner wall of the middle frame when the positioning member 3 is in the limited position. Specifically, the positioning member 3 is provided with an abutting inclined surface 31, which is inclined relative to the first direction 10 and faces the base 1. The abutting inclined surface 31 is suitable for abutting against the inner wall of the middle frame to apply a component force along the first direction 10 and towards the base 1 to the middle frame, so that the middle frame is clamped by the abutting inclined surface 31 and the abutting surface 121 along the first direction 10, ensuring stability. Even when the abutting surface 121 is facing downward, it can still be stably clamped, realizing the positioning of the middle frame. When the positioning member 3 is in the yielding position, it moves away from the inner wall of the middle frame, so that the abutting inclined surface 31 disengages from the inner wall of the middle frame, thereby allowing the middle frame to be put away and taken out. There are at least two positioning members 3, so as to clamp in different directions respectively. Of course, when there is only one, the positioning of the middle frame can be achieved by cooperating with the base 1. The part of the positioning element 3 that abuts against the inner wall of the middle frame is flexible (such as rubber) to protect the middle frame.

[0055] refer to Figure 4 The power column 2 is installed on the base 1. The power column 2 is adapted to slide along the first direction 10 to the first position and the second position. The power column 2 is used to drive the positioning member 3 to move. In this embodiment, the number of power columns 2 is one.

[0056] refer to Figure 3 , Figure 4 The two ends of the first link 4 are rotatably connected to the power column 2 and the positioning member 3 about an axis perpendicular to the first direction 10, so that the first position corresponds to the limiting position and the second position corresponds to the yielding position, so that the two are linked. The number of first links 4 is the same as the number of positioning members 3, and they correspond one-to-one. In this embodiment, there are two first links 4; each first link 4 is rotatably connected to the power column 2.

[0057] refer to Figure 3 One end of the first biasing member 5 acts on the base 1, and the other end acts on the positioning member 3. It is adapted to store energy when the positioning member 3 is in the yielding position, and to release energy to apply a force to the positioning member 3 to make it slide towards the limiting position, thereby maintaining it in the position of the positioning and limiting frame. The number of first biasing members 5 corresponds to the number of positioning members 3.

[0058] refer to Figure 2 ,Figure 4 The guiding member 6 is adapted to be connected with the seat 1 in sliding along the first direction 10 and to slide between the guiding position and the avoiding position. The guiding member 6 is provided with a guiding plane 61 which is parallel to the first direction 10 and adapted to abut against the inner wall of the middle frame in the guiding position. The guiding plane 61 is substantially T-shaped to have a larger contact surface with the positioning member 3 so as to guide the product when it is inclined.

[0059] Referring to Figure 2 The second connecting rod 7 is rotatably connected with the power column 2 and the guiding member 6 at two ends thereof along the axis which is perpendicular to the first direction 10. The first position corresponds to the guiding position and the second position corresponds to the avoiding position, so that the guiding member 6 is linked with the power column 2. In the embodiment, the number of the guiding member 6 and the second connecting rod 7 is two.

[0060] Referring to Figure 2 The second biasing member 8 is adapted to act on the seat 1 at one end and on the guiding member 6 at the other end, so as to apply a force to the guiding member 6 to make it slide to the guiding position. The number of the second biasing member 8 corresponds to the number of the guiding member 6.

[0061] Referring to Figure 5 、 Figure 6 The taking and placing member 9 comprises a mounting seat 91, a clamping jaw 93 and a pressing member 92. The mounting seat 91 is adapted to move along the first direction 10. The mounting seat 91 is provided with a sliding hole 911 which is provided with a limiting surface 9111. The limiting surface 9111 is used to prevent the pressing member 92 from coming out of the sliding hole 911 and is perpendicular to the first direction 10 and away from the middle frame.

[0062] The pressing member 92 is mounted on the mounting seat 91. The pressing member 92 comprises a floating head 921 and a third biasing member 922. The floating head 921 is adapted to be limited by the limiting surface 9111 to prevent it from coming out and is adapted to press the power column 2 to drive the power column 2 to move. The two ends of the third biasing member 922 are adapted to act on the power column 2 and the mounting seat 91 respectively. The mounting seat 91 is adapted to continue to move towards the seat 1 when the power column 2 is in the second position, so as to store energy for the third biasing member 922. The third biasing member 922 is adapted to release energy when the mounting seat 91 moves away from the seat 1, so as to keep the power column 2 in the second position. The third biasing member 922 is adapted to keep the power column 2 in the second position when the clamping jaw 93 takes and places the middle frame.

[0063] The clamping jaws 93 are mounted on the mounting seat 91 and are adapted to center the middle frame when the positioning member 3 is in the releasing position and the guiding member 6 is in the avoiding position. The number of the clamping jaws 93 is two in the embodiment. The clamping jaws 93 are adapted to clamp the middle frame, and the portions of the clamping jaws 93 that are in contact with the middle frame are flexible to protect the middle frame. In the embodiment, the clamping jaws 93 are adapted to move relative to the inner wall of the middle frame to clamp or release the middle frame to protect the outer surface of the middle frame. The clamping jaws 93 can be driven by pneumatic or motor, and the movement mode of the clamping jaws 93 can be sliding or rotating.

[0064] The first biasing member 5 and / or the second biasing member 8 and / or the third biasing member 922 are springs, rubbers or magnetic members with magnetic cooperation. In the embodiment, the first biasing member 5, the second biasing member 8 and the third biasing member 922 are springs.

[0065] Initially, under the action of the first biasing member 5 and the second biasing member 8, the power column 2 is in the first position, the guiding member 6 is in the guiding position, and the positioning member 3 is in the limiting position. The mounting seat 91 drives the clamping jaws 93 and the pressing member 92 to move downward, the floating head 921 first contacts the power column 2, the third biasing member 922 starts to be compressed, and the power column 2 slides to the second position. Under the driving of the first connecting rod 4 and the second connecting rod 7, the positioning member 3 slides to the releasing position, and the guiding member 6 slides to the avoiding position. When the power column 2 is in the second position, the guiding member 6 is in the avoiding position, and the positioning member 3 is in the releasing position, the mounting seat 91 can further move downward, the third biasing member 922 is further compressed, and the middle frame on the clamping jaw 93 abuts against the abutting surface 121 of the seat body 1. At this time, the clamping jaw 93 is controlled to shrink inward to release the inner wall of the middle frame. Then the mounting seat 91 is driven to move upward, the third biasing member 922 is released, the floating head 921 applies force to the power column 2 to overcome the restoring force of the first biasing member 5 and the second biasing member 8, until the clamping jaw 93 is out of the working area of the positioning member 3 and the guiding member 6, the floating head 921 is out of abutment with the power column 2, and the positioning member 3 and the guiding member 6 are reset under the action of the first biasing member 5 and the second biasing member 8 respectively. The guiding member 6 guides the middle frame, and the positioning member 3 abuts against the inner wall of the middle frame through the abutting inclined surface 31 to press the middle frame together with the seat body 1, thereby realizing stable positioning of the middle frame.

[0066] When the middle frame needs to be taken out, the mounting seat 91 goes down until the power column 2 makes the guide piece 6 be in the avoiding position, the positioning piece 3 is in the giving position, then the clamping jaw 93 goes down to the middle frame area, the control clamping jaw 93 expands outward and tightly abuts the inner wall of the middle frame, then the mounting seat 91 goes up, the third biasing piece 922 releases energy, so that the floating head 921 applies force to the power column 2 to overcome the restoring force of the first biasing piece 5 and the second biasing piece 8, until the clamping jaw 93 is separated from the working area of the positioning piece 3 and the guide piece 6, the floating head 921 is separated from the abutment of the power column 2, the positioning piece 3 and the guide piece 6 are reset under the action of the first biasing piece 5 and the second biasing piece 8, respectively, to facilitate positioning the middle frame next time. At this time, since the clamping jaw 93 has been separated from the working area of the positioning piece 3 and the guide piece 6, the middle frame on the clamping jaw 93 will not be abutted by the positioning piece 3 and the guide piece 6, so the middle frame can be taken out.

[0067] Of course, according to the different elastic forces of the first biasing piece 5, the second biasing piece 8 and the third biasing piece 922, it is also possible that the first biasing piece 5 and the second biasing piece 8 are compressed first, and then the third biasing piece 922 is compressed; or the third biasing piece 922 is compressed first, and then the mounting seat 91 continues to go down to compress the first biasing piece 5 and the second biasing piece 8. In other embodiments, a driving piece (such as a pneumatic cylinder or a motor) can be used to replace the third biasing piece 922 to achieve the corresponding effect.

[0068] Compared with the prior art, the embodiment has the following beneficial effects:

[0069] In an exemplary embodiment, a middle frame jig includes a seat body 1, a power column 2, a positioning piece 3, a first connecting rod 4 and a first biasing piece 5.

[0070] The seat body 1 is used for mounting various parts. The seat body 1 is suitable for abutting the middle frame along the first direction 10, so as to limit the middle frame along the abutting direction.

[0071] The power column 2 is installed on the seat body 1 and is suitable for sliding along the first direction 10 between the first position and the second position;

[0072] The positioning member 3 is mounted on the seat body 1 and is adapted to move between a limiting position and a releasing position; when in the limiting position, the positioning member 3 is adapted to abut against the inner wall of the middle frame to position the middle frame, abutting against the inner wall of the middle frame to prevent the outer wall of the middle frame from being damaged and affecting the appearance. Moreover, the inner wall of the middle frame is relatively rough compared with the outer wall of the middle frame, which facilitates positioning; when in the releasing position, the positioning member 3 is away from the inner wall of the middle frame to allow the middle frame to be taken out or placed. The first connecting rod 4 is rotatably connected at both ends thereof to the power column 2 and the positioning member 3 about an axis perpendicular to the first direction 10, so that the first position corresponds to the limiting position and the second position corresponds to the releasing position, and the direction of the corresponding force is changed through the first connecting rod 4. The first biasing member 5 is adapted to store energy when the positioning member 3 is in the releasing position and to release the energy to apply a force to the positioning member 3 to make the positioning member 3 slide to the limiting position, so that the positioning member 3 can be automatically reset to the limiting position and apply a force to the inner wall of the middle frame to ensure the positioning stability of the middle frame. The reset of the positioning member 3 is realized through the first biasing member 5 capable of storing energy, which reduces the use of a motor or other driving member, is lower in cost and occupies less structural space.

[0073] In an exemplary embodiment, the number of the positioning members 3 is at least two, the number of the first connecting rods 4 and the first biasing members 5 is the same as that of the positioning members 3 and each of the first connecting rods 4 and the first biasing members 5 corresponds to one of the positioning members 3, so as to have a better limiting effect.

[0074] In an exemplary embodiment, the positioning member 3 is adapted to be slidably connected to the seat body 1 along a direction perpendicular to the first direction 10, or the positioning member 3 is rotatably connected to the seat body 1 about an axis perpendicular to the first direction 10, so as to realize the corresponding movement.

[0075] In an exemplary embodiment, the seat body 1 is adapted to abut against the middle frame along the first direction 10; the positioning member 3 is provided with an abutting inclined surface 31, which is inclined relative to the first direction 10 and faces the seat body 1, and the abutting inclined surface 31 is adapted to abut against the inner wall of the middle frame, so as to apply a force to the middle frame through the abutting inclined surface 31, the force being directed towards the seat body 1, so that the seat body 1 and the positioning member 3 clamp the middle frame, thereby improving the stability of the middle frame when placed.

[0076] In an exemplary embodiment, the guide 6, the second connecting rod 7 and the second biasing member 8 are further included. The guide 6 is adapted to be slidingly connected to the seat 1 along a direction perpendicular to the first direction 10 and to slide between a guiding position and a avoiding position. The guide 6 is provided with a guiding plane 61 parallel to the first direction 10, which is adapted to abut against the inner wall of the middle frame in the guiding position. The guiding plane 61 can guide the inclined middle frame, so that the posture of the middle frame is better and the positioning of the inner wall of the middle frame is assisted, which can ensure the appearance of the outer wall of the middle frame. In the avoiding position, the guide 6 is away from the inner wall of the middle frame, so that the middle frame can be taken and placed. The second connecting rod 7 is rotatably connected to the power column 2 and the guide 6 at two ends along an axis perpendicular to the first direction 10, so that the first position corresponds to the guiding position and the second position corresponds to the avoiding position. The direction of the force is changed through the second connecting rod 7. The second biasing member 8 is adapted to store energy when the guide 6 is in the avoiding position and to automatically reset the guide 6 to the guiding position through energy release, so as to apply a force to the inner wall of the middle frame and ensure the positioning stability of the middle frame. The reset of the guide 6 is realized through the second biasing member 8, which can store energy, so that the use of the driving member such as the motor is reduced, the cost is lower, and the structural space is smaller.

[0077] In an exemplary embodiment, the first biasing member 5 and / or the second biasing member 8 are springs, rubbers or magnetic members with magnetic cooperation, so as to realize corresponding force application, which is simple in structure and low in cost.

[0078] In an exemplary embodiment, the seat 1 includes a bottom plate 11 and a top plate 12. The positioning member 3 is adapted to be slidingly connected to the seat 1 along a direction perpendicular to the first direction 10. The top plate 12 is mounted to the bottom plate 11. The top plate 12 and the bottom plate 11 abut against two ends of the positioning member 3 along the first direction 10, respectively, so as to realize the mounting of the positioning member 3 and prevent the movement of the positioning member 3 in the first direction 10.

[0079] In an exemplary embodiment, a taking and placing mechanism includes the taking and placing member 9 and the above-mentioned middle frame jig. The taking and placing member 9 includes a mounting seat 91, a clamping jaw 93 and a pressing member 92. The mounting seat 91 is adapted to move along the first direction 10. The pressing member 92 is mounted to the mounting seat 91 and is adapted to press the power column 2 to drive the movement of the power column 2 and to keep the power column 2 in the second position when the middle frame is taken and placed by the clamping jaw 93, so as to prevent the reset of the positioning member 3 from affecting the taking and placing of the middle frame. The clamping jaw 93 is mounted to the mounting seat 91 to move with the mounting seat 91 and is adapted to take and place the middle frame when the positioning member 3 is in the avoiding position.

[0080] In an exemplary embodiment, the pressing member 92 comprises a floating head 921 adapted to press the power column 2, and a third biasing member 922 having two ends respectively acting on the power column 2 and the mounting base 91, the mounting base 91 being adapted to continue moving towards the base 1 when the power column 2 is in the second position, so as to store energy of the third biasing member 922, and the third biasing member 922 being adapted to release energy when the mounting base 91 moves away from the base 1, so as to keep the power column 2 in the second position, thereby keeping the positioning member 3 in the giving position before the clamping jaw 93 leaves the working area of the positioning member 3, and preventing the clamping jaw 93 from affecting the middle frame. The third biasing member is lower in cost.

[0081] In an exemplary embodiment, the clamping jaw 93 is adapted to move relative to the inner wall of the middle frame to clamp or release the middle frame, so as to ensure the appearance of the middle frame. The part of the clamping jaw 93 and / or the positioning member 3 abutting against the inner wall of the middle frame is flexible, so as to ensure that the middle frame is not damaged when abutting.

[0082] The above description and the embodiments are used to explain the scope of protection of the present application, but do not constitute limitation of the scope of protection of the present application. Through the inspiration of the present application or the above embodiments, those skilled in the art can obtain the modification, equivalent replacement or other improvement of the embodiments of the present application or one part of the technical features by combining the common knowledge, the ordinary technical knowledge in the art and / or the prior art, through logical analysis, reasoning or limited test, which should be included in the scope of protection of the present application.

Claims

1. A mid-frame fixture, characterized in that: include Seat (1); the seat (1) is adapted to allow the middle frame to abut against it along a first direction (10); A power column (2) is mounted on the seat (1) and adapted to slide in a first direction (10) between a first position and a second position; Positioning element (3) is installed on the base (1) and is adapted to move between a limiting position and a yielding position; the positioning element (3) is adapted to abut against the inner wall of the middle frame when in the limiting position and to move away from the inner wall of the middle frame when in the yielding position. The first link (4) is rotatably connected at both ends to the power column (2) and the positioning member (3) about an axis perpendicular to the first direction (10), so that the first position corresponds to the limiting position and the second position corresponds to the yielding position. A first biasing member (5) acts on the seat (1) at one end and on the positioning member (3) at the other end. It is adapted to store energy when the positioning member (3) is in the yielding position and to apply a force to the positioning member (3) to slide it toward the limiting position by releasing energy.

2. The middle frame fixture as described in claim 1, characterized in that: The number of power columns (2) is one, the number of positioning components (3) is at least two, the number of first connecting rods (4) and first biasing components (5) is the same as the number of positioning components (3), and they correspond one to one; each of the first connecting rods (4) is rotatably connected to the power column (2).

3. The mid-frame fixture as described in claim 1, characterized in that: The positioning element (3) is adapted to be slidably connected to the seat (1) in a direction perpendicular to the first direction (10), or the positioning element (3) and the seat (1) are rotatably connected about an axis perpendicular to the first direction (10).

4. A mid-frame fixture as described in claim 1, characterized in that: The positioning member (3) is provided with an abutting slope (31), which is inclined relative to the first direction (10) and faces the seat (1). The abutting slope (31) is adapted to abut against the inner wall of the middle frame.

5. A mid-frame fixture as described in claim 1, characterized in that: It also includes a guide (6), a second connecting rod (7), and a second biasing member (8). The guide (6) is adapted to be slidably connected to the seat (1) along a direction perpendicular to the first direction (10) and slide between a guiding position and a clearance position. The guide (6) is provided with a guiding plane (61) parallel to the first direction (10). The guiding plane (61) is adapted to abut against the inner wall of the middle frame when in the guiding position and to be away from the inner wall of the middle frame when in the clearance position. The two ends of the second connecting rod (7) are respectively rotatably connected to the power column (2) and the guide (6) about an axis perpendicular to the first direction (10) so that the first position corresponds to the guiding position and the second position corresponds to the clearance position. One end of the second biasing member (8) acts on the seat (1) and the other end acts on the guide (6). It is adapted to store energy when the guide (6) is in the clearance position and to apply a force to the guide (6) to make it slide in the guiding position by releasing energy.

6. A mid-frame fixture as described in claim 5, characterized in that: The first biasing element (5) and / or the second biasing element (8) are springs, rubber, or two magnetically coupled magnetic elements.

7. A mid-frame fixture as described in claim 1, characterized in that: The seat (1) includes a base plate (11) and a top plate (12). The positioning member (3) is adapted to be slidably connected to the seat (1) in a direction perpendicular to the first direction (10). The top plate (12) is mounted on the base plate (11). The top plate (12) and the base plate (11) respectively abut against the two ends of the positioning member (3) in the first direction (10).

8. A picking and placing mechanism, characterized in that: The fixture includes a pick-and-place component (9) and a mid-frame fixture as described in any one of claims 1-7. The pick-and-place component (9) includes a mounting base (91), a gripper (93), and a pressure-applying component (92). The mounting base (91) is adapted to move along a first direction (10). The pressure-applying component (92) is mounted on the mounting base (91) and adapted to apply pressure to the power column (2) to drive the power column (2) to move. It is also adapted to keep the power column (2) in a second position when the gripper (93) picks up or places the mid-frame. The gripper (93) is mounted on the mounting base (91) and adapted to pick up or place the mid-frame when the positioning component (3) is in the clearance position.

9. The picking and placing mechanism as described in claim 8, characterized in that: The pressure-applying component (92) includes a floating head (921) and a third biasing component (922). The floating head (921) is adapted to apply pressure to the power column (2). The two ends of the third biasing component (922) act on the power column (2) and the mounting base (91) respectively. The mounting base (91) is adapted to continue moving toward the seat body (1) when the power column (2) is in the second position, so that the third biasing component (922) stores energy. The third biasing component (922) is adapted to release energy when the mounting base (91) moves away from the seat body (1), so that the power column (2) remains in the second position.

10. The picking and placing mechanism as described in claim 8, characterized in that: The gripper (93) is adapted to move relative to the inner wall of the middle frame to grip or release the middle frame, and the portion of the gripper (93) and / or the positioning member (3) that abuts against the inner wall of the middle frame is flexible.

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