Clamping and positioning device
The cam structure, which combines an eccentric driving element and a clamping element, solves the problems of positioning accuracy and cost in existing workpiece positioning devices, and achieves high-precision, low-cost workpiece clamping and positioning. The operation is simple and stable.
Patent Information
- Application Number
- CN202420924008.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-29
AI Technical Summary
In existing workpiece positioning technologies, the requirement for hole-shaft mating requires that irregularly shaped holes have gaps, leading to reduced positioning accuracy, and multi-faceted positioning structures are costly.
The combination of an eccentrically positioned driving component and clamping component is used to achieve single-drive clamping and positioning of the workpiece through a cam structure, and to achieve stable clamping and positioning of the workpiece by cooperating with multiple clamping components.
It achieves high-precision, low-cost workpiece positioning, is simple to operate, and can complete workpiece clamping and positioning using a single drive component, thus improving the stability and safety of the positioning device.
Smart Images
Figure CN222308605U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the technical field of electronic product processing, and in particular to a clamping and positioning device. Background Art
[0002] When positioning a workpiece, it is generally positioned by abutting against the positioning surface of the workpiece, for example, through the hole-shaft matching between the positioning structure and the workpiece, or the abutment of multiple surfaces. The existing hole-shaft matching requires the workpiece to have a hole, and if the hole is a special-shaped hole, in order to ensure smooth hole-shaft matching, it is generally required that there is a gap between the outer wall of the shaft and the hole wall, which reduces the positioning accuracy; and when positioning through multiple positioning surfaces, multiple driving structures are generally set on different sides of the workpiece to abut the workpiece, resulting in increased costs. Utility Model Content
[0003] In view of this, the present application provides a clamping and positioning device with a simple structure.
[0004] The present application provides a clamping and positioning device for clamping and positioning a workpiece, the clamping and positioning device comprising a base, an active member, a first clamping member, a second clamping member and a plurality of third clamping members. The active member is rotatably arranged on the base, and comprises a first active part and a second active part which are eccentrically arranged. The first clamping member and the second clamping member are respectively slidably arranged on the base in opposite directions. The first clamping member is provided with a first groove, and the second clamping member is provided with a second groove. The first active part is slidably arranged in the first groove, and the second active part is slidably arranged in the second groove, so that the first active part drives the first clamping member to move in the first direction when the active member rotates, and the second active part drives the second clamping member to move in the opposite direction of the first direction when the active member rotates, so that the first clamping member and the second clamping member move towards or away from each other to clamp or release the two sides of the workpiece. A plurality of third clamping members are respectively slidably arranged on the base, and are distributed on the opposite sides of the second clamping member and abut against the second clamping member. The second clamping member is used to drive the third clamping members on both sides to move toward or away from each other along a second direction perpendicular to the first direction when moving relative to the base, so that the third clamping members clamp or release the other two sides of the workpiece.
[0005] The clamping and positioning device achieves that an active member drives the first clamping member and the second clamping member to move toward or away from each other to clamp or release the opposite sides of the workpiece through the cooperation between the first active part and the first groove and the cooperation between the second active part and the second groove. And further, the second clamping member is abutted and matched with the third clamping members on both sides, so that when the second clamping member moves, it drives multiple third clamping members to clamp the other two sides of the workpiece, thereby achieving the positioning of the workpiece. The structure of the clamping and positioning device is simple and the cost is low. Furthermore, the clamping and positioning device can achieve the positioning of the workpiece using a single driving member, and the operation is simple.
[0006] In a possible implementation, the active member further includes a rotating shaft portion, which is rotatably connected to the base. The first active portion is connected to the rotating shaft portion to form a cam structure that rotates around the rotation center of the rotating shaft portion. The second active portion is rotatably connected to the first active portion, and the rotation center of the second active portion is offset from the rotation center of the rotating shaft portion.
[0007] In the above embodiment, the cam structure rotates relative to the rotation center. Since the radius of the cam structure varies along the first direction, when the shaft portion rotates, the first active portion pushes against the groove wall of the first groove to drive the first clamping member to move. The rotation center of the second active portion is staggered with the rotation center of the shaft portion, so that when the shaft portion rotates, the distance between the rotation center of the second active portion and the distance between the rotation center of the shaft portion varies along the sliding direction parallel to the second clamping member, thereby achieving the movement of the second clamping member.
[0008] In a possible embodiment, the active part also includes a rotating shaft portion, which is rotatably disposed on the base, and the first active part and the second active part are respectively rotatably connected to the rotating shaft portion, and the rotation center of the first active part, the rotation center of the second active part and the rotation center of the rotating shaft portion are staggered.
[0009] In the above embodiment, when the first connecting portion rotates relative to the base, the distance between the first active portion and the second active portion and the first connecting portion changes continuously along the sliding direction (first direction) of the first clamping member and the second clamping member, thereby realizing the movement of the first clamping member and the second clamping member.
[0010] In a possible implementation, the outer walls of the first active part and the second active part are respectively circular surfaces, and the center of the outer wall of the first active part and the center of the outer wall of the second active part are respectively located on both sides of the rotation center of the shaft part along the same straight line.
[0011] In the above embodiment, the outer peripheral walls of the first active part and the second active part are configured as circumferential surfaces, which is beneficial to reducing manufacturing costs.
[0012] In a possible implementation, the second active portion rolls relative to the groove wall of the second groove when sliding along the second groove, and / or the first active portion rolls relative to the groove wall of the first groove when sliding along the first groove.
[0013] In the above embodiment, the first active part rolls relative to the groove wall of the first groove when sliding along the first groove, and the second active part rolls relative to the groove wall of the second groove when sliding along the second groove, which is beneficial to reduce friction during movement and improve the smoothness of movement.
[0014] In a possible implementation, the active member further includes a connecting member and an operating member, wherein the connecting member is non-rotatably connected to the rotating shaft portion, and the operating member is rotatably disposed on the connecting member and is located at an end of the operating member away from the rotating shaft portion.
[0015] In the above embodiment, the operating member is held by the user, and a force is applied to the operating member, so that the operating member drives the connecting member to rotate around the rotating shaft portion. The operating member rotates during the process of the connecting member rotating around the rotating drawer portion, and the operator does not need to change the wrist angle, which is convenient for the user to operate. The operating member is away from the rotating shaft portion, reducing the external force applied to the operating member, so that the rotating shaft portion, the connecting member and the operating member form a labor-saving structure.
[0016] In a possible implementation, the clamping and positioning device further comprises a buckle, the buckle is provided with a retractable clamping portion, and the connecting member is provided with a clamping slot. The clamping portion is clamped into the clamping slot when the active member rotates to the clamping and positioning device to clamp and position the workpiece.
[0017] In the above embodiment, the snap fastener is inserted into the slot, thereby improving the position stability of the active component, and further improving the stability of the clamping and positioning device in clamping and positioning the workpiece.
[0018] In a possible embodiment, the base is provided with a first slide groove extending in a first direction, a plurality of second slide grooves extending in a second direction and respectively connected to the first slide groove, and a plurality of slide holes respectively penetrating one side of the base in a third direction, two of the plurality of slide holes are respectively connected to the first slide groove, and each of the remaining slide holes of the plurality of slide holes is connected to the second slide groove in a one-to-one correspondence, and the third direction is perpendicular to the first direction and the second direction. The first clamping member includes a first body and a first abutting member, the second clamping member includes a second body and a second abutting member connected to the second body, the first body and the second body are sequentially arranged in the first slide groove along the third direction, and slide in the first slide groove respectively along the first direction. The first abutting member is connected to the first body through the slide hole, and the second abutting member is connected to the second body through the slide hole. The third clamping member includes a third body and a third abutting member connected to the third body, the third body is slidably arranged in the second slide groove, the third body and the second body are respectively provided with inclined surfaces facing each other, and the third abutting member passes through the slide hole so that the inclined surface of the third body abuts against the inclined surface of the second body.
[0019] In the above embodiment, the base is provided with a first slide groove, multiple second slide grooves and multiple slide holes, and the first body and the first supporting member, the second body and the second supporting member, and the third body and the third supporting member are respectively divided into independent structures, so as to facilitate the installation of the first clamping member, the second clamping member and the third clamping member on the base.
[0020] In a possible embodiment, the clamping and positioning device further includes a first elastic member, a second elastic member and a plurality of third elastic members. The first elastic member is connected between the base and the first body / first abutting member, the second elastic member is connected between the second body and the second abutting member, and the first elastic member and the second elastic member are configured to implement an elastic force that drives the first clamping member and the second clamping member to move toward each other.
[0021] Each third elastic member is connected between the base and a third body / third abutting member, and the plurality of third elastic members are configured to exert an elastic force that drives the third clamping members on both sides of the second clamping member to move toward each other.
[0022] In the above embodiment, the first elastic member, the second elastic member and the third elastic member enable the first clamping member, the second clamping member and the third clamping member to elastically support the workpiece respectively, which can protect the workpiece, improve the safety of the clamping and positioning device, and also improve the stability of the clamping and positioning device in clamping the workpiece.
[0023] In a possible implementation, the clamping and positioning device further includes two stoppers, which are respectively arranged on the base and stop the active member when the active member rotates to the first position and the second position respectively. When the active member is in the first position, the clamping and positioning device clamps the workpiece, and when the active member is in the second position, the clamping and positioning device releases the workpiece.
[0024] In the above embodiment, the two stoppers stop the active member when the active member rotates to the first position and the second position respectively, so as to reduce the risk of damage caused by excessive clamping force of the clamping and positioning device on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A schematic diagram of a clamping and positioning device provided in an embodiment of the present application when positioning a workpiece.
[0026] Figure 2 for Figure 1 A partially exploded schematic diagram of the clamping and positioning device shown.
[0027] Figure 3 for Figure 2 A schematic diagram of the clamping and positioning device shown with the base portion removed.
[0028] Figure 4 for Figure 1 A schematic diagram of a cross-section of the main body of the clamping and positioning device shown.
[0029] Figure 5 for Figure 1 The schematic diagram of the clamping and positioning device shown in the figure omits part of the structure of the main body.
[0030] Figure 6 for Figure 1 The schematic diagram of the cross-section view of the assembly of the base portion of the clamping and positioning device with the active member, the first clamping member and the handle.
[0031] Figure 7 for Figure 6 A schematic diagram of the exploded structure of part of the clamping and positioning device shown.
[0032] Figure 8 for Figure 7A schematic diagram of the exploded view of a portion of the structure of the clamping and positioning device shown in another perspective.
[0033] Fig. 9 for Figure 8 A simplified schematic diagram of the rotation centers of the first active part, the second active part and the rotating shaft part is shown.
[0034] Fig.10 for Figure 1 The figure shows an assembly diagram of a first active part, a second active part and a rotating shaft of an active member in the clamping and positioning device.
[0035] Main component symbols
[0036] Clamping and positioning device 100
[0037] Base 10
[0038] Main body 11
[0039] First chute 101
[0040] Part 1011
[0041] Part 21013
[0042] Second chute 103
[0043] Slide hole 105
[0044] Cover 13
[0045] Support 15
[0046] Active parts 20
[0047] First active part 21, 21a
[0048] The second active part 23
[0049] Rotating shaft 25, 25a
[0050] First connection portion 251a
[0051] Second connection portion 253a
[0052] Connector 27
[0053] Card slot 201
[0054] Operating element 29
[0055] The first clamping member 30
[0056] First body 31
[0057] First slot 301
[0058] The first abutting member 33
[0059] The second clamping member 40
[0060] Second body 41
[0061] Second slot 401
[0062] The second abutting member 43
[0063] The third clamping member 50
[0064] The third body 51
[0065] The third abutting member 53
[0066] The first elastic member 60
[0067] The second elastic member 70
[0068] The third elastic member 80
[0069] Stopper 90
[0070] Buckle 110
[0071] Holding portion 111
[0072] First direction X
[0073] Second direction Y
[0074] The third direction Z
[0075] Workpiece 200
[0076] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0077] In order to further illustrate the technical means and effects adopted by the present application to achieve the intended application purpose, the following is combined with the drawings and implementation methods. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0078] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0079] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0080] Please also see Figure 1 and Figure 2One embodiment of the present application provides a clamping and positioning device 100 for clamping and positioning a workpiece 200, and is applied to processes such as manufacturing and installation of the workpiece 200, such as dispensing and welding.
[0081] In one embodiment, the workpiece 200 is a shell structure, for example, the workpiece 200 is a mobile phone shell, but is not limited thereto. For example, in other embodiments, the workpiece 200 may also be a shell or internal shell structure of a tablet computer or a notebook computer; or, the workpiece 200 may also be a square block, a special-shaped block, or other shapes. As long as the workpiece 200 has a surface that can be clamped by the clamping and positioning device 100, it will be sufficient.
[0082] Please also see Figures 3 to 6 The clamping and positioning device 100 includes a base 10, an active member 20, a first clamping member 30, a second clamping member 40 and a plurality of third clamping members 50. The active member 20 is rotatably disposed on the base 10. The active member 20 includes an eccentrically disposed first active portion 21 and a second active portion 23. The first clamping member 30 and the second clamping member 40 are respectively slidably disposed on the base 10. The first clamping member 30 is provided with a first groove 301. The first active portion 21 is slidably disposed in the first groove 301. The second clamping member 40 is provided with a second groove 401. The second active portion 23 is slidably disposed in the second groove 401. The active member 20 rotates, so that the first active portion 21 and the second active portion 23 rotate respectively around the rotation center of the active member 20 relative to the base 10. The first active part 21 changes its position relative to the base 10, slides in the first groove 301, and contacts the groove wall of the first groove 301, thereby driving the first clamping member 30 to slide relative to the base 10 along the first direction; the second active part 23 changes its position relative to the base 10, slides in the second groove 401, and contacts the groove wall of the second groove 401, thereby driving the second clamping member 40 to slide relative to the base 10 in the opposite direction of the first direction. The first clamping member 30 and the second clamping member 40 move toward or away from each other in opposite directions by rotating the active member 20, thereby achieving the first clamping member 30 and the second clamping member 40 clamping or releasing the two sides of the workpiece 200.
[0083] In one embodiment, the active member 20 can be driven manually, but is not limited thereto. For example, in another embodiment, the active member 20 can be connected to a rotation driving structure.
[0084] In one embodiment, the number of the third clamping members 50 is four, but not limited thereto. For example, in other embodiments, the number of the third clamping members 50 may also be two, three, five, or other numbers.
[0085] Each third clamping member 50 is slidably disposed on the base 10. Every two third clamping members 50 are disposed on both sides of the second clamping member 40 and respectively abut against the second clamping member 40. The second clamping member 40 is used to drive the two third clamping members 50 on both sides to move toward or away from each other along a second direction perpendicular to the first direction when sliding relative to the base 10, so that the multiple third clamping members 50 on both sides of the second clamping member 40 respectively clamp or release the other two sides of the workpiece 200.
[0086] like Figure 1 and Figure 3 As shown, in one embodiment, for the convenience of clear subsequent description, it is defined that the first direction X is parallel to the direction in which the first clamping member 30 and the second clamping member 40 slide relative to the base 10, the second direction Y is parallel to the direction in which the third clamping member 50 slides relative to the base 10, and the third direction Z is perpendicular to the first direction X and the second direction Y.
[0087] In one embodiment, the first direction X is perpendicular to the second direction Y, but the present invention is not limited thereto. For example, in other embodiments, the angle between the first direction X and the second direction Y may also be 60°, 70°, 80° or other angles.
[0088] The clamping and positioning device 100 realizes that an active member 20 drives the first clamping member 30 and the second clamping member 40 to move toward or away from each other along the first direction X and the opposite direction of the first direction X through the cooperation between the first active part 21 and the first groove 301, and the cooperation between the second active part 23 and the second groove 401, so as to clamp or detach the opposite sides of the workpiece 200; and further, the second clamping member 40 is abutted and cooperated with the third clamping members 50 on both sides, so that when the second clamping member 40 moves, it drives multiple third clamping members 50 to clamp the other two sides of the workpiece 200, thereby realizing the positioning of the workpiece 200.
[0089] The clamping and positioning device 100 has a simple structure and low cost. Furthermore, the clamping and positioning device 100 can realize the positioning of the workpiece 200 using a single driving member, and the operation is simple.
[0090] See also Figures 6 to 8 In one embodiment, the active member 20 further includes a rotating shaft portion 25. The rotating shaft portion 25 is rotatably connected to the base 10. The first active portion 21 is fixedly connected to the rotating shaft portion 25 to form a cam structure around the rotation center of the rotating shaft portion 25 relative to the base 10. During the rotation of the cam structure relative to the rotation center of the base 10, the radius value of the cam structure along the first direction X is changed, so that when the rotating shaft portion 25 rotates, the first active portion 21 pushes against the groove wall of the first groove 301 to drive the first clamping member 30 to move. Fig. 9As shown, the second active part 23 is rotatably connected to the first active part 21, and the rotation center 03 of the second active part 23 is offset from the rotation center 01 of the shaft part 25. When the shaft part 25 rotates, the distance between the rotation center 03 of the second active part 23 and the rotation center 01 of the shaft part 25 changes along the sliding direction parallel to the second clamping member 40, thereby driving the movement of the second clamping member 40.
[0091] In one embodiment, please refer to Fig. 9 , the outer peripheral walls of the first active part 21 and the second active part 23 are respectively circumferential surfaces. And the center O2 of the outer peripheral wall of the first active part 21 and the center O3 of the outer peripheral wall of the second active part 23 are respectively located on both sides of the rotation center O1 of the shaft part 25 along the same straight line, so that the first active part 21 and the second active part 23 respectively form a cam structure that rotates around the rotation center O1 of the shaft part 25. When the shaft part 25 rotates, it can drive the first active part 21 to rotate and slide in the first groove 301, and make the first active part 21 abut against the groove wall of the first groove 301, thereby driving the first clamping member 30 to slide relative to the base 10 along the first direction X; at the same time, it can also drive the second active part 23 to rotate and slide in the second groove 401, and make the second active part 23 abut against the groove wall of the second groove 401, thereby driving the second clamping member 40 to slide relative to the base 10 in the opposite direction of the first direction X, so as to realize the first clamping member 30 and the second clamping member 40 to move toward each other to clamp the workpiece 200. The outer peripheral walls of the first active part 21 and the second active part 23 are configured as circumferential surfaces, which is beneficial to reducing manufacturing costs and facilitating easy installation. In one embodiment, the rotating shaft part 25 is a cylindrical structure, but is not limited thereto.
[0092] Furthermore, the outer peripheral wall of the second active part 23 is a circular surface, which facilitates the second active part 23 to roll relative to the groove wall of the second groove 401 when sliding in the second groove 401, thereby reducing the friction during movement and improving the smoothness of movement.
[0093] In one embodiment, the outer diameter of the first active portion 21 is greater than the outer diameter of the shaft portion 25 , which is beneficial to improving the movement stability of the first active portion 21 and the first slot 301 , but the present invention is not limited thereto.
[0094] It can be understood that in other embodiments, the first active portion 21 and / or the second active portion 23 may also be a cam structure with the rotation center of the rotating shaft portion 25 as the base circle center.
[0095] It can be understood that in other embodiments, the second active portion 23 can also be fixedly connected to the first active portion 21 .
[0096] It can be understood that in other embodiments, the two third clamping members 50 may also be staggered along the second direction Y, as long as at least two third clamping members 50 are located on both sides of the second clamping member 40 .
[0097] In another embodiment, if Fig.10 As shown, the shaft portion 25a includes a first connection portion 251a and a second connection portion 253a. The first connection portion 251a is a cylindrical structure, and the second connection portion 253a is roughly a rectangular block structure, but is not limited thereto. The first connection portion 251a is rotatably connected to the base 10. The second connection portion 253a is fixedly connected to the first connection portion 251a, and extends to both sides of the rotation center of the first connection portion 251a. The first active portion 21a and the second active portion 23 are rotatably connected to the two ends of the second connection portion 253a respectively. The radius of the first active portion 21a is smaller than the radius of the first connection portion 251a of the shaft portion 25a. Accordingly, the size of the first groove 301a adapts to the first active portion 21a to cooperate with the first active portion 21a. When the first connecting portion 251a rotates relative to the base 10, the distances between the first active portion 21a and the second active portion 23 and the first connecting portion 251a respectively change continuously along the sliding direction (first direction X) of the first clamping member 30 and the second clamping member 40, thereby driving the first clamping member 30 and the second clamping member 40 to move along the first direction X.
[0098] Furthermore, the first active part 21a is rotatably disposed on the second connecting part 253a, and the second active part 23 is rotatably disposed on the second connecting part 253a, which facilitates the first active part 21a to roll relative to the groove wall of the first groove 301, and the second active part 23 to roll relative to the groove wall of the second groove 401, which helps to reduce friction during movement and improve the smoothness of movement.
[0099] Please continue reading Figure 4 , 6 to Figure 8 In one embodiment, the base 10 includes a main body 11 and a cover 13. The main body 11 of the base 10 is provided with a first slide groove 101 extending along a first direction X and a plurality of second slide grooves 103 extending along a second direction Y and respectively connected to the first slide groove 101. The first slide groove 101 includes a first portion 1011 and a second portion 1013 connected in sequence along the first direction X. The second portion 1013 penetrates one side of the main body 11 along a third direction Z. The cover 13 is connected to the main body 11, and the distance between the cover 13 and the bottom wall of the second portion 1013 is greater than the size of the first portion 1011 along the third direction Z. The first clamping member 30 includes a first body 31 and a first abutting member 33. The second clamping member 40 includes a second body 41 and a second abutting member 43. The first body 31 is slidably disposed on the first portion 1011 and the second portion 1013 of the first slide groove 101. The second body 41 is slidably disposed on the second portion 1013 of the first slide groove 101, and is sequentially disposed with the first body 31 along the third direction Z.
[0100] In one embodiment, the base 10 is further provided with a plurality of sliding holes 105 respectively penetrating one side of the base 10 along the third direction Z. The main body 11 is provided with five sliding holes 105. The cover 13 covers a portion of the second portion 1013 of the first slide groove 101, thereby exposing another portion of the first slide groove 101 to form another sliding hole 105 for the second abutting member 43 to pass through and communicate with the first slide groove 101.
[0101] In one embodiment, the number of the second slide grooves 103 is four. One of the five slide holes 105 is connected to the first slide groove 101, and the remaining four slide holes 105 are connected to the second slide grooves 103 in a one-to-one correspondence, but the present invention is not limited thereto.
[0102] The first abutment 33 is connected to the first body 31 through the sliding hole 105, and the second abutment 43 is connected to the second body 41 through the sliding hole 105. The third clamping member 50 includes a third body 51 and a third abutment 53 connected to the third body 51, the third body 51 is slidably disposed in the second sliding groove 103, and the third abutment 53 is connected to the third body 51 through the sliding hole 105.
[0103] In one embodiment, the second body 41 is in contact with the third body 51, and the third body 51 and the second body 41 are provided with inclined surfaces facing each other, and the inclined surface of the third body 51 is in contact with the inclined surface of the second body 41 through the sliding hole 105, so that when the second body 41 moves along the first direction X, the third body 51 is pushed to move along the second direction Y. It can be understood that in other embodiments, the third body 51 and the second body 41 can also move in different directions by matching the curved surfaces.
[0104] In one embodiment, the first body 31 and the second body 41 are respectively plate-shaped structures, but are not limited thereto.
[0105] It can be understood that in other embodiments, the number of sliding holes 105 can also be three, four or other numbers, and the sliding holes 105 and the second sliding grooves 103 can also be connected in a non-one-to-one manner. For example, two sliding holes 105 are connected to a second sliding groove 103, and two second supporting members 43 are respectively connected to a second body 41 through corresponding sliding holes 105.
[0106] The base 10 is provided with a first slide groove 101, multiple second slide grooves 103 and multiple slide holes 105, and the first body 31 and the first abutment 33, the second body 41 and the second abutment 43, and the third body 51 and the third abutment 53 are respectively divided into independent structures, so as to facilitate the installation of the first clamping member 30, the second clamping member 40 and the third clamping member 50 on the base 10.
[0107] It can be understood that in other embodiments, the main body 11 and the cover body 13 can be an integrated structure.
[0108] In one embodiment, please refer to Figure 2 The base 10 further includes a support member 15, which is disposed on the main body 11, and the first abutting member 33, the second abutting member 43 and the third abutting member 53 are respectively located on the peripheral side of the support member 15. The support member 15 is configured to support the workpiece 200. It can be understood that in other embodiments, the support member 15 can also be omitted.
[0109] It can be understood that in other embodiments, the first clamping member 30 may also have multiple first abutting members 33, and the multiple first abutting members 33 are respectively connected to the first body 31; the second clamping member 40 may also have multiple second abutting members 43, and the multiple second abutting members 43 are respectively connected to the second body 41; and / or the third clamping member 50 may also have multiple third abutting members 53, and the multiple third abutting members 53 are respectively connected to the third body 51.
[0110] In one embodiment, the first clamping member 30, the second clamping member 40 and the third clamping member 50 are respectively configured to elastically abut against the workpiece 200. Figure 3 , Figure 4 , Figure 7 and Figure 8 The clamping and positioning device 100 further includes a first elastic member 60, a second elastic member 70 and a plurality of third elastic members 80. The number of the third elastic members 80 is four, but not limited thereto. The first elastic member 60 is connected between the main body 11 of the base 10 and the first abutting member 33; the second elastic member 70 is connected between the main body 11 of the base 10 and the second body 41; each third elastic member 80 is connected between the main body 11 of the base 10 and a third body 51. The first elastic member 60 and the second elastic member 70 are configured to implement an elastic force that drives the first clamping member 30 and the second clamping member 40 to move toward each other, so that the first clamping member 30 and the second clamping member 40 are elastically clamped on opposite sides of the workpiece 200 along the first direction X.
[0111] It can be understood that in other embodiments, the second elastic member 70 may also be connected to the second supporting member 43 , and the third elastic member 80 may also be connected to the third supporting member 53 .
[0112] Every two of the four third elastic members 80 are configured to drive the two third clamping members 50 on both sides of the first clamping member 30 to move toward each other, so that the multiple third clamping members 50 on both sides of the second clamping member 40 are elastically clamped on both sides of the workpiece 200 along the second direction Y.
[0113] The first elastic member 60, the second elastic member 70 and the third elastic member 80 enable the first clamping member 30, the second clamping member 40 and the third clamping member 50 to elastically support the workpiece 200 respectively, which can protect the workpiece 200 and improve the safety of the clamping and positioning device 100. In addition, when the external force on the active member 20 is removed, the first clamping member 30, the second clamping member 40 and the third clamping member 50 keep clamping the workpiece 200 to improve the stability of the clamping and positioning device 100 in clamping the workpiece 200.
[0114] It is understandable that in other embodiments, the first elastic member 60, the second elastic member 70 and the third elastic member 80 may also be omitted. For example, in another embodiment, the first abutting member 33, the second abutting member 43 and the third abutting member 53 are respectively connected to a gasket, and the gasket elastically abuts against the workpiece 200 to protect the workpiece 200. For example, in another embodiment, the active member 20 is locked on the base 10 when the clamping and positioning device 100 clamps and fixes the workpiece 200, and the position of the active member 20 relative to the base 10 is stable, thereby improving the stability of the clamping and positioning device 100 clamping and fixing the workpiece 200.
[0115] In one embodiment, please refer to Figure 1 , Figure 7 and Figure 8 The active member 20 further includes a connecting member 27. The connecting member 27 is non-rotatably connected to the rotating shaft portion 25. The active member 20 further includes an operating member 29, which is rotatably connected to the side of the connecting member 27 away from the base 10 and is located at an end of the connecting member 27 away from the rotating shaft portion 25. The operating member 29 is held by a user, and a force is applied to the operating member 29, so that the operating member 29 drives the connecting member 27 to rotate around the rotating shaft portion 25. The operating member 29 rotates during the process of the connecting member 27 rotating around the rotating shaft portion, and the operator does not need to change the wrist angle, which is convenient for the user to operate.
[0116] In one embodiment, the connecting member 27 extends outside the peripheral wall of the rotating shaft portion 25, and the operating member 29 is away from the rotating shaft portion 25, so as to reduce the external force applied to the operating member 29, so that the rotating shaft portion 25, the connecting member 27 and the operating member 29 form a labor-saving structure.
[0117] In one embodiment, the active member 20 reciprocates between a first position and a second position. Figure 1The position of the active member 20 is shown, and the second position is the position reached by the active member 20 rotating 180° from the first position. When the active member 20 rotates from the second position to the first position, the clamping and positioning device 100 clamps and positions the workpiece 200; when the active member 20 rotates from the first position to the second position, the clamping and positioning device 100 releases the workpiece 200. The clamping and positioning device 100 also includes two stoppers 90. The two stoppers 90 are respectively arranged on the base 10, and stop the active member 20 when the active member 20 rotates to the first position and the second position, respectively, so as to reduce the risk of damage caused by excessive clamping force of the clamping and positioning device 100 on the workpiece 200.
[0118] In one embodiment, the clamping and positioning device 100 further includes a buckle 110. The buckle 110 is provided with a retractable clamping portion 111. The connecting member 27 is provided with a clamping groove 201. The clamping portion 111 is clamped into the clamping groove 201 when the active member 20 rotates to the clamping and positioning device 100 to clamp and position the workpiece 200. The clamping groove 201 is clamped into the buckle 110, which improves the position stability of the active member 20, thereby improving the stability of the clamping and positioning device 100 in clamping and positioning the workpiece 200.
[0119] The overall working process of the above-mentioned clamping and positioning device 100 is as follows:
[0120] by Figure 2 Taking the clamping and positioning device 100 as an example, Figure 2 The clamping and positioning device 100 shown is in a clamping state, and the clamping and positioning device 100 is changed from the clamping state to the open state: the active member 20 is rotated clockwise, specifically, the operating member 29 is held and the connecting member 27 is driven to rotate around the rotating shaft portion 25, the first active portion 21 abuts against the groove wall of the first groove 301 of the first body 31, and drives the first abutting member 33 to move along the first direction X; at the same time, the second active portion 23 abuts against the groove wall of the second groove 401 of the second body 41, and drives the second abutting member 43 to move in the opposite direction of the first direction X, so that the first abutting member 33 and the second abutting member 43 move away from each other; through the relative sliding of the inclined surfaces facing each other of the second body 41 and the third body 51, when the second body 41 moves away from the first abutting member 33, it can drive the third bodies 51 on both sides to move away from each other along the second direction Y, and the clamping and positioning device 100 is changed to the open state, and the workpiece 200 can be placed between the two opposite third clamping members 50, and between the first clamping member 30 and the second clamping member 40.
[0121] The clamping and positioning device 100 is changed from the open state to the clamping state: the active member 20 is rotated counterclockwise, specifically, the operating member 29 is held and the connecting member 27 is driven to rotate around the rotating shaft portion 25, the first active portion 21 abuts against the groove wall of the first groove 301 of the first body 31, and drives the first abutting member 33 to move in the opposite direction of the first direction X; at the same time, the second active portion 23 abuts against the groove wall of the second groove 401 of the second body 41, and drives the second abutting member 43 to move in the first direction X, so that the first abutting member 33 and the second abutting member 43 move toward each other; through the relative sliding of the inclined surfaces facing the second body 41 and the third body 51, when the second body 41 moves toward the first abutting member 33, it can drive the third bodies 51 on both sides to move toward each other in the second direction Y, and the clamping and positioning device 100 is changed to the clamping state, and the workpiece 200 is clamped by the two opposite third clamping members 50, and the first clamping member 30 and the second clamping member 40. Release the operating member 29, the first elastic member 60 abuts the first clamping member 30, and the second elastic member 70 abuts the second clamping member 40, so that the first clamping member 30 and the second clamping member 40 are kept abutting against the opposite sides of the workpiece 200; each third elastic member 80 abuts against the corresponding third clamping member 50, so that every two third clamping members 50 abut against the opposite sides of the workpiece 200, and the workpiece 200 is stably positioned on the clamping and positioning device 100.
[0122] The above-mentioned clamping and positioning device 100 realizes that an active part 20 drives the first clamping part 30 and the second clamping part 40 to move in opposite directions to clamp or detach the opposite sides of the workpiece 200 through the cooperation between the first active part 21 and the first groove 301, and the cooperation between the second active part 23 and the second groove 401; and further, through the abutment cooperation between the second clamping part 40 and the third clamping parts 50 on both sides, when the first clamping part 30 moves, it drives multiple third clamping parts 50 to clamp the other two sides of the workpiece 200, thereby realizing the positioning of the workpiece 200.
[0123] Furthermore, the clamping and positioning device 100 has a simple structure and low cost. Furthermore, the clamping and positioning device 100 can realize the positioning of the workpiece 200 using a single driving member, and the operation is simple.
[0124] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application and are not intended to be limiting of the present application. As long as they are within the spirit and scope of the present application, appropriate changes and modifications to the above embodiments are within the scope of the present application.
Claims
1. A clamping and positioning device for clamping and positioning a workpiece, comprising a base, characterized in that: The clamping and positioning device also includes: An active member is rotatably disposed on the base and includes a first active portion and a second active portion that are eccentrically disposed; The first clamping member and the second clamping member are respectively slidably disposed on the base in opposite directions; the first clamping member is provided with a first groove, the second clamping member is provided with a second groove, the first active part is slidably disposed in the first groove, and the second active part is slidably disposed in the second groove, so that the first active part drives the first clamping member to move in the first direction when the active member rotates, and the second active part drives the second clamping member to move in the opposite direction of the first direction when the active member rotates, so that the first clamping member and the second clamping member move toward or away from each other to clamp or release two sides of the workpiece; and A plurality of third clamping members are respectively slidably disposed on the base, and are distributed on opposite sides of the second clamping member and abut against the second clamping member; the second clamping member is used to drive the third clamping members on both sides to move toward or away from each other along a second direction perpendicular to the first direction when moving relative to the base, so that the plurality of third clamping members clamp or release the other two sides of the workpiece.
2. The clamping and positioning device according to claim 1, characterized in that: The active member further includes a rotating shaft portion, and the rotating shaft portion is rotatably connected to the base; The first active portion is connected to the rotating shaft portion to form a cam structure that rotates around the rotation center of the rotating shaft portion; The second active part is rotatably connected to the first active part, and a rotation center of the second active part is staggered with a rotation center of the rotating shaft part.
3. The clamping and positioning device according to claim 1, characterized in that: The active component also includes a rotating shaft portion, which is rotatably disposed on the base, the first active portion and the second active portion are respectively rotatably connected to the rotating shaft portion, and the rotation center of the first active portion, the rotation center of the second active portion and the rotation center of the rotating shaft portion are staggered.
4. The clamping and positioning device according to claim 2 or 3, characterized in that: The outer circumferential walls of the first active part and the second active part are respectively circumferential surfaces, and the center of the outer circumferential wall of the first active part and the center of the outer circumferential wall of the second active part are respectively located on both sides of the rotation center of the shaft part along the same straight line.
5. The clamping and positioning device according to claim 2 or 3, characterized in that: The second active portion rolls relative to the groove wall of the second groove when sliding along the second groove; and / or The first active portion rolls relative to the groove wall of the first groove when sliding along the first groove.
6. The clamping and positioning device according to claim 2, characterized in that: The active member further comprises a connecting member and an operating member, wherein the connecting member is non-rotatably connected to the rotating shaft portion, and the operating member is rotatably arranged on the connecting member and is located at an end of the operating member away from the rotating shaft portion.
7. The clamping and positioning device according to claim 6, characterized in that: The clamping and positioning device further comprises a buckle, the buckle is provided with a retractable clamping portion, and the connecting piece is provided with a clamping groove; The clamping portion is used to clamp into the clamping groove when the active member rotates to the clamping positioning device to clamp the workpiece.
8. The clamping and positioning device according to any one of claims 1 to 3, 6 and 7, characterized in that: The base is provided with a first slide groove extending along the first direction, a plurality of second slide grooves extending along the second direction and respectively connected to the first slide groove, and a plurality of slide holes respectively penetrating one side of the base along a third direction, two of the plurality of slide holes are respectively connected to the first slide groove, and the remaining slide holes of the plurality of slide holes are each connected to the second slide groove in a one-to-one correspondence, and the third direction is perpendicular to the first direction and the second direction; The first clamping member includes a first body and a first abutting member, the second clamping member includes a second body and a second abutting member connected to the second body, the first body and the second body are sequentially arranged in the first slide groove along the third direction, and slide in the first slide groove along the first direction respectively; the first abutting member is connected to the first body through the sliding hole, and the second abutting member is connected to the second body through the sliding hole; The third clamping member includes a third body and a third abutting member connected to the third body. The third body is slidably arranged in the second sliding groove. The third body and the second body are respectively provided with inclined surfaces facing each other. The third abutting member passes through the sliding hole so that the inclined surface of the third body abuts against the inclined surface of the second body.
9. The clamping and positioning device according to claim 8, characterized in that: The clamping and positioning device also includes a first elastic member, a second elastic member and a plurality of third elastic members; The first elastic member is connected between the base and the first body / the first abutting member, and the second elastic member is connected between the second body and the second abutting member. The first elastic member and the second elastic member are configured to implement an elastic force that drives the first clamping member and the second clamping member to move toward each other. Each of the third elastic members is connected between the base and one of the third body / the third abutting member, and the plurality of third elastic members are configured to exert an elastic force that drives the third clamping members on both sides of the second clamping member to move toward each other.
10. The clamping and positioning device according to any one of claims 1 to 3, 6 and 7, 9, characterized in that: The clamping and positioning device further comprises two stoppers, which are respectively arranged on the base and respectively stop the active member when the active member rotates to the first position and the second position; When the active member is in the first position, the clamping and positioning device clamps the workpiece, and when the active member is in the second position, the clamping and positioning device releases the workpiece.