A clamping device for focusing

Abstract

The application belongs to the field of focusing, and particularly relates to a clamping device for focusing, which comprises a connecting body, a clamping mechanism, a reciprocating driving assembly and a rotary driving assembly. The clamping mechanism comprises a rotary body and multiple clamping assemblies. The rotary body is rotatably arranged on the connecting body, and the rotary driving assembly is drivingly connected with the rotary body. The multiple clamping assemblies are movably arranged on the rotary body. The reciprocating driving assembly is drivingly connected with the clamping assemblies. The connecting body is further provided with a variable-focus lens corresponding to the clamping position. In the application, the clamping force of the device acting on the product is stable and uniform, and the product is not easy to slip, and will not be damaged due to too much force. The device has good compatibility, and the multiple clamping assemblies can be compatible with products of different sizes. Based on the variable-focus lens, the device can shorten the focusing distance, thereby saving the focusing space and greatly reducing the overall size.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of focusing, in particular relates to a clamping structure. BACKGROUND

[0002] The prior art generally uses deformable materials, such as spring steel, iron sheet, to make a clamping mechanism that basically matches the shape of the lens, and through the deformation of the clamping mechanism, the lens is clamped to simulate the human hand to perform the camera focusing work. Although this mechanism can also perform focusing, it has the following shortcomings:

[0003] 1. The clamping force is unstable. Since this mechanism relies on material deformation to generate clamping force on the lens, whether it is metal or other materials, metal fatigue will occur, resulting in unstable deformation and a decrease in clamping force, making the focusing process prone to slipping.

[0004] 2. Poor compatibility. This clamping mechanism has high requirements for product size. Because of the limited deformation, it cannot be compatible with products that have similar shapes but slightly larger size differences.

[0005] 3. Short service life. The mechanism has a short service life or needs to be replaced frequently.

[0006] Document 1 discloses a clamping mechanical hand applied to an automatic focusing assembly equipment of a camera module (application number CN201721590872.3), which is used to clamp the camera module to be assembled and deliver the camera module to be assembled to the center of the focusing light source. The clamping mechanical hand includes a clamping cylinder, a clamping jaw connected with the push rod of the clamping cylinder, which can move radially inward or outward, a clamping jig installed on the clamping jaw and can move radially under the control of the clamping cylinder, and when the clamping jig moves radially inward to clamp the module lens barrel, the adjacent clamping jigs collectively form a clamping chamber matching the outer circumference of the module lens barrel. The embodiment of the invention can greatly reduce the work intensity of the staff and improve the assembly efficiency by clamping the camera module to be assembled by the clamping mechanical hand and delivering the camera module to be assembled to the center of the focusing light source. This disclosure has the defects of the prior art. SUMMARY

[0007] To solve the above problems, the primary purpose of the present application is to provide a clamping device for focusing, which has stable and uniform clamping force on the product and is not prone to slipping, and will not damage the product due to excessive force.

[0008] Another purpose of the present application is to provide a clamping device for focusing, which has good compatibility.

[0009] Still another object of the present application is to provide a clamping device for focusing, which can shorten the focusing distance, thereby saving the focusing space and greatly reducing the overall size.

[0010] In order to achieve the above object, the technical scheme of the present application is as follows.

[0011] The clamping device for focusing comprises a connecting body, a clamping mechanism, a reciprocating driving assembly and a rotating driving assembly, wherein the clamping mechanism comprises a rotating body and a plurality of clamping assemblies, the rotating body is rotatably arranged on the connecting body, the rotating driving assembly is fixedly arranged on the connecting body, and the rotating driving assembly is drivingly connected with the rotating body; the plurality of clamping assemblies are movably arranged on the rotating body, and the plurality of clamping assemblies form clamping positions for clamping products; the number of the reciprocating driving assemblies corresponds to the number of the clamping assemblies, and the number of the reciprocating driving assemblies is plural; the reciprocating driving assemblies are fixedly arranged on the connecting body, the reciprocating driving assemblies are drivingly connected with the clamping assemblies, and the plurality of reciprocating driving assemblies drive the clamping assemblies to move on the rotating body so as to expand or reduce the clamping positions.

[0012] The connecting body is further provided with variable-distance lenses corresponding to the clamping positions, and the variable-distance lenses are located above the clamping positions.

[0013] In the device, the plurality of clamping assemblies are opened / closed by the plurality of reciprocating driving assemblies, so as to clamp or release the products, the clamping force acting on the products is stable and uniform, the products are not easily slipped, and the products are not damaged due to too large force; the device has good compatibility, and the plurality of clamping assemblies can be compatible with products of different sizes by expanding to different sizes. Based on the arrangement of the variable-distance lenses, the device can shorten the focusing distance, thereby saving the focusing space and greatly reducing the overall size.

[0014] Further, the connecting body is fixedly provided with a lens fixing member, and the variable-distance lenses are fixedly arranged on the lens fixing member.

[0015] Further, the connecting body is provided with a rotating hole, and the rotating body is rotatably arranged in the rotating hole.

[0016] Further, the lens fixing member is fixedly arranged at both sides of the rotating hole. The arrangement of the lens fixing member makes the installation of the focusing lenses more stable.

[0017] Further, a bearing is fixedly sleeved on the outer side of the rotating body, and the outer side of the bearing is fixed on the side surface of the rotating hole.

[0018] Furthermore, the lower end of the rotating body extends out through a rotating hole to the lower side of the connecting body, forming a synchronous pulley. The rotating drive assembly includes a rotary motor, a pulley, and a belt. The rotary motor is fixedly mounted on the lower side of the connecting body, and the pulley is fixedly mounted on the shaft of the rotary motor. Both the synchronous pulley and the pulley are connected to the belt drive. The shaft of the rotary motor drives the pulley to rotate, and when the pulley rotates, it drives the synchronous pulley to rotate synchronously via the belt. Specifically, the synchronous pulley has teeth on its outer side that are adapted to the belt.

[0019] Furthermore, two tension adjusting idler pulleys are fixedly installed on the lower side of the rotating body, and the two tension adjusting idler pulleys are symmetrically and movably abutting against both sides of the belt. The tension adjusting idler pulleys are used to limit the tension of the belt, so that the belt meshes more tightly with the synchronous pulley and will not slip or lose steps.

[0020] Furthermore, the rotating body is provided with a sliding groove, and a focusing hole penetrating the rotating body is provided within the sliding groove; multiple clamping components are all disposed within the sliding groove, and the focusing hole corresponds to the clamping position. The sliding groove design allows the clamping components to not protrude excessively from the rotating body, effectively protecting the clamping components.

[0021] Furthermore, the clamping assembly is movably connected to the rotating body via a slide rail slider structure.

[0022] Furthermore, the sliding groove is a cylindrical groove, and the multiple clamping components together form a disk shape, and the clamping position is a circular through hole.

[0023] Furthermore, the clamping assembly includes a connector and a clamping member. The connector is drivenly connected to the reciprocating drive assembly and is movably disposed within a sliding groove. The clamping member is fixedly disposed on the front side of the connector, and the clamping position is formed between the clamping members of the multiple clamping assemblies. The clamping assembly also includes a ring-shaped tension spring, which is sleeved on the rear side of the connector of the multiple clamping assemblies. The ring-shaped tension spring is sleeved on the outside of the multiple clamping assemblies, causing the multiple clamping assemblies to generate a centripetal force of tension. When a product is in the middle of the clamping position, it will assist in clamping the product.

[0024] Furthermore, the clamping member extends into the focusing hole, and the outer surface of the lower end of the clamping member corresponds to the side surface of the focusing hole. This alignment of the outer surface of the lower end of the clamping member with the side surface of the focusing hole limits the movement of the clamping member.

[0025] Furthermore, the upper side of the connector is provided with a retaining position, and the reciprocating drive component abuts against the retaining position to drive the connection with the connector.

[0026] Further, the abutting position on the upper side of the connecting piece is an abutting groove, the reciprocating driving assembly is provided with an abutting piece, the abutting piece is arranged in the abutting groove, and the abutting piece corresponds to the side surface of the abutting groove. The driving of the connecting piece clamping and the reciprocating driving assembly opening forms a corresponding action. When the product needs to be focused, the reciprocating driving assembly does not abut on the side wall of the abutting groove through the abutting piece. At this time, the connecting piece and the product are clamped and focused under the action of the annular tension spring. After the focusing is completed, the reciprocating driving assembly abuts on the side wall of the abutting groove through the abutting piece. The connecting piece is pulled outwards by force, and then the clamping position releases the product and allows the product to leave.

[0027] Further, the number of the clamping assemblies is three, the number of the reciprocating driving assemblies is four, and a plurality of abutting grooves are combined into a circular annular groove after the three clamping assemblies are folded; and the abutting pieces of the four reciprocating driving assemblies are arranged in the circular annular groove in a cross-symmetrical manner.

[0028] Further, the lower side of the front end of the abutting piece is provided with an abutting bearing, and the abutting bearing is arranged in the abutting groove. When the reciprocating driving assembly pulls the connecting piece outwards, the abutting bearing can also rotate relative to the side surface of the abutting groove, so that the movement of the connecting piece is more smooth. When the clamping position is opened, the abutting bearing is driven by the reciprocating driving assembly to abut and pull the connecting piece; when the clamping position is folded, the abutting bearing can be directly driven by the reciprocating driving assembly to abut and push the connecting piece; or the width of the abutting groove is greater than the radius of the clamping position, the abutting bearing does not abut and push the connecting piece when folded, and the connecting piece is reset by the action force of the annular tension spring to enable the clamping position to clamp; or the abutting bearing is directly driven by the reciprocating driving assembly to abut and push the connecting piece, and the annular tension spring assists the connecting piece to reset.

[0029] Further, the lower side of the front end of the abutting piece is provided with two abutting bearings, the two abutting bearings are arranged in the abutting groove, and the two abutting bearings are respectively arranged on the left and right sides of the front end of the abutting piece. The arrangement of the two abutting bearings makes the movement of the connecting piece more stable.

[0030] Further, the reciprocating driving assembly comprises a driving cylinder, the driving cylinder is fixedly arranged on the lower side of the connecting main body, the rear end of the abutting piece extends downward to form a driving connecting portion, and the shaft of the driving cylinder is fixed with the driving connecting portion.

[0031] Further, the lower side of the abutting piece and the connecting main body are movably connected through a slide rail and a slide block structure.

[0032] Further, a wiring part for wiring and binding is fixedly arranged on the connecting body.

[0033] Further, the wiring part corresponds to the position of the driving connection part.

[0034] The working process of the device is as follows: the three clamping assemblies are driven to move by the retraction of the shafts of the four driving cylinders, so that the clamping positions are opened, then the four driving cylinders are extended, the clamping assemblies are reset under the driving of the annular tension spring (or the driving cylinder), and the product is clamped; the rotary motor drives the rotary body to rotate, and then drives the three clamping assemblies on the rotary body to rotate while clamping the product, so as to assist in completing the subsequent adjustment process.

[0035] The beneficial effects of the present application are as follows: in the present application, the multiple clamping assemblies are driven to open / close by the multiple reciprocating driving assemblies, so that the clamping force acting on the product is stable and uniform, and the product is not easy to slip, and is not damaged due to too much force; and the compatibility is good, and the multiple clamping assemblies can be compatible with products of different sizes by opening / closing to different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic view of the first perspective of the present application.

[0037] Figure 2 is a structural schematic view of the present application in which the lens fixing part and the variable distance lens are hidden.

[0038] Figure 3 is a structural schematic view of the second perspective of the present application.

[0039] Figure 4 is a structural schematic view of the first perspective of the clamping assembly.

[0040] Figure 5 is a structural schematic view of the second perspective of the clamping assembly. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0042] Reference Figures 1-5The utility model relates to a clamping device for focusing, the device includes connecting body 1, clamping mechanism 2, reciprocating drive assembly 3, rotary drive assembly 4, it is characterized in that, clamping mechanism 2 includes rotary body 21 and a plurality of clamping assemblies 22, rotary body 21 rotatablely movable setting in connecting body 1, rotary drive assembly 4 fixedly setting in connecting body 1, and rotary drive assembly 4 is drivenly connected with rotary body 21, a plurality of clamping assemblies 22 all movable setting in rotary body 21, and a plurality of clamping assemblies 22 form the clamping site 221 for clamping product between, reciprocating drive assembly 3 number corresponds with clamping assembly 22 number, and the number is multiple, reciprocating drive assembly 3 fixedly setting in connecting body 1, reciprocating drive assembly 3 is drivenly connected with clamping assembly 22, and a plurality of reciprocating drive assemblies 3 drive clamping assembly 22 to move on rotary body 21 to expand or reduce clamping site 221,

[0043] Connecting body 1 is further provided with variable distance lens 5 corresponding to clamping site 221, and variable distance lens 5 is located above clamping site 221.

[0044] In the embodiment, lens fixing part 51 is fixedly arranged on connecting body 1, and variable distance lens 5 is fixedly arranged on lens fixing part 51.

[0045] In the embodiment, rotating hole 11 is arranged in connecting body 1, and rotary body 21 is rotatablely arranged in rotating hole 11.

[0046] In the embodiment, lens fixing part 51 is fixedly arranged at both ends of rotary body 21.

[0047] In the embodiment, bearing 12 is fixedly sleeved outside rotary body 21, and bearing 12 is fixed on the side surface of rotating hole 11.

[0048] In the embodiment, the lower end of rotary body 21 extends out of the lower side of connecting body 1 through rotating hole 11 to form synchronous wheel part 211, rotary drive assembly 4 includes rotary motor 41, belt pulley 42 and belt 43, rotary motor 41 is fixedly arranged on the lower side of connecting body 1, belt pulley 42 is fixedly arranged on the shaft of rotary motor 41, and synchronous wheel part 211 and belt pulley 42 are transmissionally connected with belt 43.

[0049] In the embodiment, two tensioning adjusting idlers 44 are further fixedly arranged on the lower side of connecting body 1, and the two tensioning adjusting idlers 44 are symmetrically movably abut on the two sides of belt 43.

[0050] In the embodiment, sliding groove 212 is arranged on rotary body 21, focusing hole 213 penetrating rotary body 21 is arranged in sliding groove 212, a plurality of clamping assemblies 22 are arranged in sliding groove 212, and focusing hole 213 corresponds to clamping site 221.

[0051] In the embodiment, the clamping assembly 22 is movably connected with the rotating main body 21 through the first sliding rail slider structure 23.

[0052] In the embodiment, the sliding groove 212 is a cylindrical groove, and the plurality of clamping assemblies 22 are folded into a disc shape as a whole, and the clamping sites 221 are circular through holes after the plurality of clamping assemblies 22 are folded.

[0053] In the embodiment, the clamping assembly 22 comprises a connecting piece 222 and a clamping piece 223, the connecting piece 222 is drivingly connected with the reciprocating driving assembly 3, the connecting piece 223 is movably arranged in the sliding groove 212, the clamping piece 223 is fixedly arranged at the front side of the connecting piece 222, and the clamping sites 221 are formed between the clamping pieces 223 of the plurality of clamping assemblies 22; the clamping assembly 22 further comprises an annular tension spring, and the annular tension spring is sleeved at the rear side of the connecting piece of the plurality of clamping assemblies 22. Specifically, the rear side of the connecting piece 222 is provided with a tension spring groove 224, and the tension spring grooves 224 of the plurality of connecting pieces 222 are located on the same arc of a circle; after the plurality of connecting pieces 222 are folded, the plurality of tension spring grooves 224 are combined to form an annular groove. The annular tension spring is arranged in the tension spring grooves of the plurality of connecting pieces 222.

[0054] In the embodiment, the clamping piece 223 extends into the focusing hole 213, and the outer side surface of the lower end of the clamping piece 223 corresponds to the side surface of the focusing hole 213.

[0055] Or the front end of the connecting piece and the clamping piece both extend into the focusing hole 213, and the lower side of the front end of the connecting piece corresponds to the side surface of the focusing hole.

[0056] In the embodiment, the upper side of the connecting piece 222 is provided with an abutting site 225, and the reciprocating driving assembly 3 abuts on the abutting site 225 to be drivingly connected with the connecting piece 222.

[0057] In the embodiment, the abutting site 225 on the upper side of the connecting piece 222 is an abutting groove, the reciprocating driving assembly 3 is provided with an abutting piece 31, the abutting piece 31 is arranged in the abutting groove, and the abutting piece 31 corresponds to the side surface of the abutting groove.

[0058] In the embodiment, the number of the clamping assemblies 22 is three, the number of the reciprocating driving assemblies 3 is four, the plurality of abutting grooves are combined into a circular annular groove after the three clamping assemblies 22 are folded, and the abutting pieces of the four reciprocating driving assemblies 3 are arranged in the circular annular groove in a cross symmetry.

[0059] In the embodiment, the front end of the abutting piece 31 is provided with an abutting bearing 32, and the abutting bearing 32 is arranged in the abutting groove.

[0060] In the embodiment, two abutting bearings 32 are arranged on the lower side of the front end of the abutting piece 31, and the two abutting bearings 32 are arranged in the abutting grooves and on the left and right sides of the front end of the abutting piece 31 respectively.

[0061] In the embodiment, the reciprocating driving assembly 3 comprises a driving cylinder 33 fixedly arranged on the lower side of the connecting body 1, and the rear end of the abutting piece 31 downwardly extends to form a driving connecting part 34, and the shaft of the driving cylinder 33 is fixed with the driving connecting part 34.

[0062] In the embodiment, the lower side of the abutting piece 31 is movably connected with the connecting body 1 through a second sliding rail sliding block structure 35.

[0063] In the embodiment, the connecting body 1 is further fixedly arranged with a wiring piece 13 for wiring and cable.

[0064] In the embodiment, the wiring piece 13 corresponds to the position of the driving connecting part 34.

[0065] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A focusing clamping device, comprising a connecting body, a clamping mechanism, a reciprocating drive assembly, and a rotary drive assembly, characterized in that, The clamping mechanism includes a rotating body and multiple clamping components. The rotating body is rotatably mounted on a connecting body. The rotating drive component is fixedly mounted on the connecting body and is drivenly connected to the rotating body. Multiple clamping components are movably mounted on the rotating body, and these components form a clamping position for clamping the product. The number of reciprocating drive components corresponds to the number of clamping components, and there are multiple reciprocating drive components. The reciprocating drive components are fixedly mounted on the connecting body and are drivenly connected to the clamping components. The multiple reciprocating drive components drive the clamping components to move on the rotating body to expand or shrink the clamping position. The connecting body is also provided with a variable-length lens corresponding to the clamping position, and the variable-length lens is located above the clamping position. A lens fixing component is fixedly provided on the connecting body, and the variable distance lens is fixedly provided on the lens fixing component; The connecting body is provided with a rotating hole, and the rotating body is rotatably disposed in the rotating hole; A bearing is fixedly sleeved on the outside of the rotating body, and the bearing is fixed on the side of the rotating hole. The rotating body is provided with a sliding groove, and a focusing hole that passes through the rotating body is provided in the sliding groove; multiple clamping components are all provided in the sliding groove, and the focusing hole corresponds to the clamping position; The sliding groove is a cylindrical groove, and the multiple clamping components together form a disk shape. The clamping position is a circular through hole. The clamping assembly includes a connector and a clamping member. The connector is driven to the reciprocating drive assembly. The connector is movably disposed in the sliding groove. The clamping member is fixedly disposed on the front side of the connector. The clamping position is formed between the clamping members of the multiple clamping assemblies. The clamping assembly also includes an annular tension spring, which is sleeved on the rear side of the connector of the multiple clamping assemblies. The clamping member extends into the focusing hole, and the outer side of the lower end of the clamping member corresponds to the side of the focusing hole. The connector has a support position on its upper side, and the reciprocating drive component abuts against the support position to drive the connection with the connector. The upper abutment position of the connector is an abutment groove, and the reciprocating drive assembly is provided with an abutment member. The abutment member is disposed in the abutment groove, and the abutment member corresponds to the side of the abutment groove. The number of clamping components is three, and the number of reciprocating drive components is four. After the three clamping components are closed, multiple abutment grooves are combined to form an annular groove. The abutment members of the four reciprocating drive components are arranged in a cross-shaped symmetrical arrangement in the annular groove. The lower side of the front end of the abutment member is provided with an abutment bearing, which is disposed in the abutment groove.

2. The clamping device for focusing according to claim 1, characterized in that, The lower end of the rotating body extends out through a rotating hole to the lower side of the connecting body to form a synchronous pulley; the rotating drive assembly includes a rotary motor, a pulley, and a belt. The rotary motor is fixedly mounted on the lower side of the connecting body, and the pulley is fixedly mounted on the shaft of the rotary motor. Both the synchronous pulley and the pulley are connected to the belt drive. Two tension adjustment idlers are also fixedly installed on the lower side of the rotating body, and the two tension adjustment idlers are symmetrically and movable against both sides of the belt.

3. The clamping device for focusing according to claim 1, characterized in that, The reciprocating drive assembly includes a drive cylinder, which is fixedly disposed on the lower side of the connecting body. The rear end of the abutment extends downward to form a drive connection portion, and the shaft of the drive cylinder is fixed to the drive connection portion.

Images