CN216563216U

CN216563216U - Adjustable clamping device for button cell

Info

Publication number: CN216563216U
Application number: CN202123388667.8U
Authority: CN
Inventors: 周攀
Original assignee: Luhua Zhifu Electronics Shenzhen Co ltd
Current assignee: Luhua Zhifu Electronics Shenzhen Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-17
Anticipated expiration: 2031-12-29

Abstract

The utility model relates to an adjustable clamping device of a button cell, which limits six degrees of freedom of a cell through an accommodating groove, a limiting elastic sheet and a clamping unit on a mounting seat. The holding tank sets up on the mount pad, and it is used for placing button cell and can restrict button cell's three degree of freedom. One end of the limiting elastic sheet is arranged on the mounting seat, and the other end of the limiting elastic sheet is used for pressing the upper surface of the buckle type battery. The chuck of the clamping unit is provided with an arc surface matched with the button cell, so that the chuck can increase the envelope area of the button cell as much as possible and limit the degree of freedom of the button cell. The other three degrees of freedom and the positioning size of the button cell are ensured by the chuck and the limiting elastic sheet, no degree of freedom exists after clamping, accurate positioning can be realized, and the processing efficiency is greatly improved.

Description

Adjustable clamping device for button cell

Technical Field

The utility model relates to the technical field of battery clamping equipment, in particular to an adjustable clamping device for a button battery.

Background

In the button cell industry, a button cell is a typical small cylindrical product, and due to production requirements, accurate size grinding, welding, milling and assembling processing are often performed on a circular profile surface of the button cell, so that clamping stability and size accuracy are particularly important to quality influence after processing. The small circular contour surface is difficult to clamp and accurately position, so that the phenomena of slippage and low positioning accuracy are easy to occur after clamping, and the processing efficiency is influenced.

Therefore, it is desirable to provide an adjustable clamping device for button cell batteries to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an adjustable clamping device of a button cell, which limits six degrees of freedom of a cell through an accommodating groove, a limiting elastic sheet and a clamping unit on a mounting seat. The holding tank sets up on the mount pad, and it is used for placing button cell and can restrict button cell's three degree of freedom. One end of the limiting elastic sheet is arranged on the mounting seat, and the other end of the limiting elastic sheet is used for pressing the upper surface of the buckle type battery. The chuck of the clamping unit is provided with an arc surface matched with the button cell, so that the chuck can increase the envelope area of the button cell as much as possible and limit the degree of freedom of the button cell. The other three degrees of freedom and the positioning size of the button cell are ensured by the chuck and the limiting elastic sheet, no degree of freedom exists after clamping, accurate positioning can be realized, the processing efficiency is greatly improved, and the problems that slippage easily occurs after clamping the cell and the processing efficiency is low due to low positioning precision in the prior art are solved.

In order to solve the above problems, the present invention comprises: an adjustable clamping device for a button cell for clamping the circular profile of the button cell, comprising:

the battery pack comprises a mounting seat, wherein one end of the mounting seat is provided with an accommodating groove which is used for limiting three degrees of freedom of a battery; the other end of the mounting seat is provided with a limiting elastic sheet, one end of the limiting elastic sheet is connected with the upper end face of the mounting seat, and the other end of the limiting elastic sheet is positioned above the accommodating groove and used for fixing the upper surface of the battery; and the number of the first and second groups,

a clamping unit: the clamping unit is used for limiting the other two degrees of freedom of the battery and comprises a chuck and a connecting block, and one end of the connecting block is connected with the mounting seat; the clamping head is connected with the other end of the connecting block in a sliding mode, an arc surface matched with the side face of the battery is arranged at the end of the clamping head, and the arc surface is arranged opposite to the accommodating groove; the arc surface is used for being matched with the accommodating groove to clamp the battery.

In the button cell adjustable clamping device, the mounting seat is provided with a mounting groove, and the mounting groove is positioned on one side of the accommodating groove. The connecting block comprises a first connecting section, a second connecting section and a third connecting section. The side surface of the first connecting section is clung to the side surface of the mounting seat, and the side surface of the first connecting section is used for clamping the battery. The one end of second linkage segment with the one end fixed connection of first linkage segment, the second linkage segment is located in the mounting groove, the other end of linkage segment with mount pad screwed connection, it is convenient to ann tear open, also is convenient for change the maintenance. The height of the upper surface of the second connecting section is smaller than or equal to the bottom height of the accommodating groove, and the height of the bottom height of the accommodating groove is used for avoiding the chuck, increasing the contact area between the arc surface of the chuck and the side surface of the battery, and improving the clamping effect. One end of the third connecting section is fixedly connected with the second connecting section, and the other end of the third connecting section is connected with the chuck in a sliding manner.

Further, the chuck comprises a clamping part and a sliding seat. One end of the clamping portion is provided with the arc surface, the other end of the clamping portion is connected with the sliding seat, and a through adjusting channel is arranged on the sliding seat. When the clamping portion clamps the battery, the upper surface of the clamping portion is located above the third connecting section and the second connecting section. One end of the third connecting section penetrates through the adjusting channel and is tightly attached to the inner side wall of the adjusting channel, and the third connecting section is used for fixing the clamping part. The relative position relation between the sliding seat and the third connecting section can be adjusted according to the size of a battery, and compatibility is improved.

Furthermore, one end, far away from the second linkage segment, of the third linkage segment is provided with a guide inclined plane, so that the guide function is achieved, and the mounting seat is protected due to over grinding.

Furthermore, the adjustable clamping device for the button cell further comprises a sliding unit, and the sliding unit is used for matching the sliding seat and the third connecting section to slide. The sliding unit comprises a fixed seat, an adjusting screw rod and an adjusting handle. One end of the fixing seat is connected with the mounting seat through screws, the other end of the fixing seat is provided with a through hole, a sliding groove is formed in the fixing seat, and the through hole is communicated with the sliding groove. One end of the adjusting screw penetrates through the through hole and is located in the sliding groove, and the adjusting screw is connected with the side face of the sliding seat. The adjusting handle is located on the outer side of the fixing seat, and the adjusting handle is fixedly connected with the other end of the adjusting screw rod. The adjusting handle is used for pushing the adjusting screw rod to move in the sliding groove so as to drive the sliding seat to slide along the third connecting section. The moving precision of the sliding seat can be improved, and therefore the clamping effect is improved.

Furthermore, the slide towards one side of adjusting screw is provided with trapezoidal thread, the last annular thread that is provided with of adjusting screw, trapezoidal thread with annular thread forms screw thread pair structure, and ann tears convenient, improves the regulation precision open, reaches high-efficient driven purpose.

Further, the mount pad is kept away from the one end of holding tank is provided with the screw hole, the mount pad still includes the handle, the one end of handle with screw hole threaded connection, the other end of handle is used for assisting ann to tear open, the simple operation.

Furthermore, a knurled thread is arranged on the outer circumference of the handle to play a role in protection.

Furthermore, the clamping head is made of insulating materials, so that the shell of the button cell battery is not easy to deform due to extrusion and impact, and more importantly, the danger of short circuit of the battery can be avoided. The arc surface is provided with an insulating adhesive tape or a friction surface, so that the battery has no degree of freedom after being clamped, and accurate positioning can be realized.

Furthermore, one end of the limiting elastic sheet is connected with the upper surface of the mounting seat through a fixing piece, the limiting elastic sheet is arranged around the fixing piece in a rotating mode, and the upper end face of the battery is clamped and loosened through axial force application of the limiting elastic sheet.

Compared with the prior art, the adjustable clamping device for the button cell has the advantages that: the utility model relates to an adjustable clamping device of a button cell, which limits six degrees of freedom of a cell through an accommodating groove, a limiting elastic sheet and a clamping unit on a mounting seat. The holding tank sets up on the mount pad, and it is used for placing button cell and can restrict button cell's three degree of freedom. One end of the limiting elastic sheet is arranged on the mounting seat, and the other end of the limiting elastic sheet is used for pressing the upper surface of the buckle type battery. The chuck of the clamping unit is provided with an arc surface matched with the button cell, so that the chuck can increase the envelope area of the button cell as much as possible and limit the degree of freedom of the button cell. The other three degrees of freedom and the positioning size of the button cell are ensured by the chuck and the limiting elastic sheet, no degree of freedom exists after clamping, accurate positioning can be realized, the processing efficiency is greatly improved, and the problems that slippage easily occurs after clamping the cell and the processing efficiency is low due to low positioning precision in the prior art are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding to some embodiments of the present invention.

Fig. 1 is an exploded view of an embodiment of an adjustable clamping device for button cell batteries according to the present invention.

Fig. 2 is a schematic structural diagram of an embodiment of a mounting seat of an adjustable clamping device for a button cell according to the utility model.

Fig. 3 is a schematic structural diagram of a clamping unit of an adjustable clamping device for button cells according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of an embodiment of a sliding unit of an adjustable clamping device for button batteries according to the utility model.

In the figure: 10. a button battery adjustable clamping device comprises a mounting seat 20, a mounting seat 21, an accommodating groove 22, an installation groove 23, a threaded hole 24, a limiting elastic sheet 25, a fixing piece 26, a handle 30, a clamping unit 31, a clamping head 311, a clamping part 3112, an arc surface 312, a sliding seat 3121, a trapezoidal thread, 32 a connecting block 321, a first connecting section 3211, a nitriding surface 322, a second connecting section 323, a third connecting section 3231, a guide inclined surface 40, a sliding unit 41, a fixing seat, 411 a sliding groove, 412 a sleeve 413, a supporting block 42, an adjusting screw rod 421, an annular thread, 422 a protrusion 43, an adjusting handle and 50 batteries.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom" are used only with reference to the orientation of the drawings, and the directional terms are used for illustration and understanding of the present invention, and are not intended to limit the present invention.

In the drawings, elements having similar structures are denoted by the same reference numerals.

Referring to fig. 1 and fig. 2, in the present embodiment, the adjustable clamping device 10 for a button cell includes a mounting base 20, a clamping unit 30 and a sliding unit 40. Two interactive inclined planes of 120 degrees are arranged in the mounting seat 20, three degrees of freedom of the battery 50 can be limited, the other three degrees of freedom and the positioning size of the battery 50 are guaranteed by the clamping head 31 and the limiting elastic sheet 24, no degree of freedom exists after clamping, and accurate positioning can be realized.

In the present embodiment, referring to fig. 2, an accommodating groove 21 and an installing groove 22 are disposed at one end of the installing seat 20, and the accommodating groove 21 is used for limiting three degrees of freedom of the battery 50. The mounting groove 22 is located at one side of the receiving groove 21, and the height of the bottom of the mounting groove 22 is lower than that of the bottom of the receiving groove 21. One end of the mounting seat 20 far away from the accommodating groove 21 is provided with a threaded hole 23, the mounting seat 20 further comprises a handle 26, one end of the handle 26 is in threaded connection with the threaded hole 23, and the handle 26 can be rapidly mounted and dismounted. The other end of the handle 26 is used for assisting in mounting and dismounting, the operation is convenient, and the adjustment of the thread pair mechanism can be facilitated.

The other end of the mounting seat 20 is provided with a limiting elastic sheet 24 and is located on one side of the accommodating groove 21. One end of the limiting elastic sheet 24 is connected with the upper surface of the mounting seat 20 through a fixing piece 25, the limiting elastic sheet 24 is arranged in a rotating mode around the fixing piece 25, and the upper end face of the battery 50 achieves clamping and loosening functions through axial force application of the limiting elastic sheet 24. The limit elastic piece 24 can be separated from the contact surface by axial force application, the size of the limit elastic piece 24 in the axial direction clamping force can meet the requirements of different processing conditions, and the problem that the operation safety is affected by loosening, sliding and the like is avoided. In order to facilitate the mounting and dismounting of the fixing element 25, which is arranged on the elastic limit piece 24, a tool-free dismounting screw similar to, but not limited to, a high-head knurled screw is selected. To avoid contact short circuit and damage to the battery 50 due to large clamping force, a self-adhesive insulating pad should be provided on the spring plate in contact with the battery 50.

In the present embodiment, referring to fig. 3, the clamping unit 30 includes a chuck 31 and a connecting block 32. The connection block 32 includes a first connection section 321, a second connection section 322, and a third connection section 323. The side of the first connecting section 321 is closely attached to the side of the mounting seat 20, and the side of the first connecting section 321 is used for clamping the battery 50. The side surface of the first connecting section 321 is set to be a nitriding surface 3211, so that the hardness and the wear resistance of the surface are improved. The dimension to be processed of the nitriding surface 3211 is determined by the relative position of the center of the circular arc surface 3112 of the chuck 31, thereby forming accurate dimension positioning. In addition, the processing contact surface of the device needs nitriding treatment, so that the influence of excessive grinding or milling on the dimensional precision can be compensated, and the service life of the device can be prolonged.

Wherein, the one end of second linkage segment 322 and the one end fixed connection of first linkage segment 321, second linkage segment 322 are located mounting groove 22, and the other end and the 20 screwed connection of mount pad of linkage segment, it is convenient to ann demolish, also is convenient for change the maintenance. The height of the upper surface of the second connecting section 322 is less than or equal to the bottom height of the accommodating groove 21, and is used for avoiding the position of the chuck 31, increasing the contact area of the arc surface 3112 of the chuck 31 and the side surface of the battery 50, and improving the clamping effect. One end of the third connecting section 323 is fixedly connected to the second connecting section 322, and the other end of the third connecting section 323 is slidably connected to the sliding seat 312 of the chuck 31. The end of the third connecting section 323 remote from the second connecting section 322 is provided with a guiding inclined surface 3231, which not only has a guiding function, but also protects the mounting base 20 from over-grinding.

The collet 31 includes a clamping portion 311 and a slider 312. One end of the clamping portion 311 is provided with a circular arc surface 3112 matched with the side surface of the battery 50, and the circular arc surface 3112 is arranged opposite to the accommodating groove 21 after installation. The arcuate surface 3112 is for cooperating with the receiving groove 21 to clamp the battery 50. The clamp portion 311 is insulated, the clamp portion 311 is interchangeable, and the arc surface 3112 of the clamp portion 311 is arc-shaped and identical to the side surface of the battery 50, is identical to the outer diameter of the button battery 50, and has an envelope area as large as possible in accordance with the machining dimension. In order to increase the static friction force of the arc surface 3112, it may be realized by adding an insulating paste having a rough surface, increasing the roughness of the arc surface 3112, or the like.

The other end of the clamping portion 311 is rigidly connected to the slide base 312 by a fastener, and a through adjustment channel in clearance fit with the third connecting section 323 is provided between the rigidly connected two parts. In order to ensure that the size of the adjusting channel is not deviated, a matched mounting structure similar to a mortise and tenon or a flange is arranged at the fastening part of the two parts. The guide mechanism is not limited to the rectangular configuration of the present device and may be a standard T-slot and dovetail configuration. When the clamping portion 311 clamps the battery 50, the upper surface of the clamping portion 311 is positioned above the third connecting section 323 and the second connecting section 322. One end of the third connecting section 323 passes through the adjustment passage and is in close contact with the inner side wall of the adjustment passage, and is used for fixing the clamping portion 311. The relative position relationship between the sliding base 312 and the third connecting section 323 can be adjusted according to the size of the battery 50, so as to improve compatibility. The side of the slide 312 facing the adjustment screw 42 is provided with a trapezoidal thread 3121.

In the present embodiment, referring to fig. 4, the sliding unit 40 is adapted to slide along the sliding base 312 and the third connecting section 323. The sliding unit 40 includes a fixing base 41, an adjustment screw 42, and an adjustment handle 43. One end of the fixing seat 41 is in screwed connection with the mounting seat 20, the lower end of the fixing seat 41 is provided with a convex supporting block 413, the upper surface of the supporting block 413 is tightly attached to the lower surface of the mounting seat 20, the connecting screw can be protected, and meanwhile, a supporting effect is achieved in the adjusting process. The other end of fixing base 41 is provided with the through-hole of waist type, is provided with spout 411 in the fixing base 41, and the through-hole sets up with spout 411 intercommunication to adjust the fit clearance of screw thread pair structure during the installation, thereby reach high-efficient driven purpose. One end of the adjusting screw 42 penetrates through the through hole and is located in the sliding slot 411, and the adjusting screw 42 is connected with the side surface of the sliding seat 312. And forms a clearance fit with a sleeve 412 fixed in the through hole, the sleeve 412 being fitted over the outer surface of the adjustment screw 42. The side of adjusting screw 42 can set up annular screw 421, makes trapezoidal thread 3121 on the slide 312 form screw thread pair structure with annular screw 421, and the ann tears open conveniently, improves the regulation precision, reaches high-efficient driven purpose. The handle 26 of the adjusting screw 42 realizes that the sliding seat 312 moves together with the chuck 31 towards the clamping direction, and finally the purpose of accurate clamping can be achieved. The screw pair structure is only one of the clamping modes of the driving chuck 31, and the driving mode can also be a worm and gear pair or other gear pair mechanisms. The adjusting screw 42 is provided with a flange which can be axially limited on the fixing seat 41. The adjusting handle 43 is located at the outer side of the fixed seat 41, and the adjusting handle 43 is fixedly connected with the other end of the adjusting screw rod 42. The adjusting handle 43 is used to push the adjusting screw 42 to move in the sliding slot 411 so as to drive the sliding seat 312 to slide along the third connecting section 323. The moving accuracy of the slider 312 can be improved, thereby improving the clamping effect.

The adjustable clamping device 10 for button cell adopts an insulating clamping member which can form surface contact with a circular arc surface, and the insulating clamping head 31 member can be matched and exchanged according to the outer diameter of different button cells 50. Under the rigid connection condition, the accurate clamping function of the button cell 50 is realized through the driving of the thread pair or the worm-and-gear pair. The accurate size positioning of the button cell adjustable clamping device 10 is realized by the relative positions of the limiting structure arranged on the mounting seat 20 and the clamping part of the insulating chuck 31 component. The method solves the insecurity of the disassembly operation of the battery 50 and the accuracy of the disassembly processing dimension of the battery 50 in the button cell 50 industry, and can ensure that the dimension of the grinding processing of the side surface of the battery 50 is controlled to be less than or equal to 0.15 mm. Greatly facilitating the need for the industry to remove the housing of the battery 50 by grinding. Meanwhile, the application range of the portable device is not limited to the button cell 50 industry, but also can be applied to other product industries with similar processing requirements and similar shape characteristics.

The adjustable clamping device 10 for the button cell can effectively realize the functions of adjustable, quick clamping and accurate positioning on the arc surface of the button cell 50 based on the requirement of accurate size processing in the button cell 50 industry. The device is a device which is characterized in that after an interchangeable insulating chuck 31 is rigidly connected with a trapezoidal thread 3121 member, the movement of the insulating chuck 31 member is driven by adjusting the loosening of the thread member, and finally the purposes of quick clamping and accurate positioning are achieved. The device is applied to the machining process of the button cell 50, can effectively solve the technical problems of difficult arc surface clamping and accurate positioning, and also meets the requirements of the machining processes of welding, grinding, milling, assembling and the like of small circular workpieces.

The working principle of the present invention is explained below.

The battery 50 is placed in the receiving groove 21, and the connection block 32 is mounted. The side surface of the first connecting block 32 is closely attached to the side surface of the mounting seat 20, and at the same time, the side surface of the first connecting block 32 is closely attached to the side surface of the battery 50, and the second connecting block 32 is fixed in the mounting groove 22 by a screw. The limit spring is manually rotated so that the end of the limit spring is pressed against the upper surface of the battery 50. The slider 312 is connected to the clamping portion 311, and the end of the third connecting block 32 is passed through the slider 312. The fixing seat 41 is connected with the mounting seat 20, the adjusting handle 43 is rotated to drive the adjusting screw 42 to rotate, and the adjusting screw 42 and the sliding seat 312 form a thread pair structure, so that the adjusting screw 42 drives the sliding seat 312 and the clamping portion 311 to slide along the third connecting section 323, and the arc surface 3112 of the clamping portion 311 is tightly attached to the arc surface of the side edge of the battery 50 to clamp the battery 50.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims

1. An adjustable clamping device for button cell batteries, for clamping the circular profile of button cells, comprising:

2. The adjustable clamping device for button cell batteries according to claim 1, wherein the mounting seat is provided with a mounting groove, and the mounting groove is located at one side of the receiving groove; the connecting block includes:

the side surface of the first connecting section is clung to the side surface of the mounting seat, and the side surface of the first connecting section is used for clamping a battery;

one end of the second connecting section is fixedly connected with one end of the first connecting section, the second connecting section is positioned in the mounting groove, and the other end of the connecting section is in screw connection with the mounting seat; the height of the upper surface of the second connecting section is less than or equal to the height of the bottom surface of the accommodating groove; and the number of the first and second groups,

and one end of the third connecting section is fixedly connected with the second connecting section, and the other end of the third connecting section is connected with the chuck in a sliding manner.

3. The adjustable clamping device for button cells according to claim 2, wherein the clamping head comprises a clamping portion and a sliding seat; the arc surface is arranged at one end of the clamping part, the other end of the clamping part is connected with the sliding seat, and a through adjusting channel is arranged on the sliding seat; when the clamping part clamps the battery, the upper surface of the clamping part is positioned above the third connecting section and the second connecting section; one end of the third connecting section penetrates through the adjusting channel and is tightly attached to the inner side wall of the adjusting channel, and the third connecting section is used for fixing the clamping part.

4. The adjustable clamping device for button cells according to claim 3, wherein the end of the third connecting section away from the second connecting section is provided with a guiding slope.

5. The adjustable clamping device for button cell according to claim 3, further comprising a sliding unit, wherein the sliding unit is adapted to slide along the third connecting section in cooperation with the sliding base; the sliding unit includes:

one end of the fixed seat is connected with the mounting seat through a screw, the other end of the fixed seat is provided with a through hole, a sliding groove is formed in the fixed seat, and the through hole is communicated with the sliding groove;

one end of the adjusting screw penetrates through the through hole and is positioned in the sliding groove, and the adjusting screw is connected with the side face of the sliding seat; and the number of the first and second groups,

the adjusting handle is positioned on the outer side of the fixed seat and is fixedly connected with the other end of the adjusting screw rod; the adjusting handle is used for pushing the adjusting screw rod to move in the sliding groove so as to drive the sliding seat to slide along the third connecting section.

6. The adjustable clamping device for button cells according to claim 5, wherein the side of the sliding base facing the adjusting screw is provided with trapezoidal threads, the adjusting screw is provided with annular threads, and the trapezoidal threads and the annular threads form a thread pair structure.

7. The adjustable clamping device for button cells according to claim 1, wherein a threaded hole is provided at an end of the mounting seat away from the receiving groove, the mounting seat further comprises a handle, one end of the handle is in threaded connection with the threaded hole, and the other end of the handle is used for assisting in mounting and dismounting.

8. The adjustable clamping device for button cell batteries according to claim 7, characterized in that the outer circumference of said handle is provided with knurled screw threads.

9. The adjustable clamping device for button cells according to claim 1, wherein the clamping head is made of insulating material, and the circular arc surface is provided with an insulating paste or a friction surface.

10. The adjustable clamping device for button cells according to claim 1, wherein one end of the limiting elastic sheet is connected with the upper surface of the mounting seat through a fixing member, and the limiting elastic sheet is rotatably disposed around the fixing member.