CN217799896U

CN217799896U - Flexible ceramic clamping fixture

Info

Publication number: CN217799896U
Application number: CN202221722265.9U
Authority: CN
Inventors: 陈维
Original assignee: Dongguan Paipo Technology Co ltd; Shenzhen Paipo Technology Co ltd
Current assignee: Dongguan Paipo Technology Co ltd; Shenzhen Paipo Technology Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-15
Anticipated expiration: 2032-07-05

Abstract

The utility model discloses a flexible pottery centre gripping anchor clamps, two ceramic slide blocks that set up on ceramic base and the ceramic base, the pottery slider symmetry sets up and can be close to each other or keep away from the slip, be provided with the drive of slip drive arrangement on the ceramic base the pottery slider slides, the corresponding side of pottery slider is provided with the flexible clamping device who is used for the centre gripping circuit board. The flexible ceramic clamping fixture provided by the utility model adopts a sliding clamping structure to adapt to circuit boards with different sizes; meanwhile, the air bag is in contact with the circuit board, and the flexible clamping ensures that the clamp cannot damage the circuit board in the clamping process.

Description

Flexible ceramic clamping fixture

Technical Field

The utility model relates to a chip processing technology field especially relates to flexible ceramic centre gripping anchor clamps.

Background

The existing welding machine needs to clamp and fix the chip through a clamp when welding the chip, however, the existing clamp has the following three problems: 1. the chip clamp can only clamp and fix chips with the same size, and when the sizes of the chips are different, the chips cannot be clamped, so that the welding efficiency of the chips is reduced; 2. due to the fragility of the material of the circuit board, the traditional rigid clamp can possibly clamp the circuit board when clamping the circuit board; 3. the chip itself receives the influence of electric current such as static easily, generally requires the staff to wear antistatic clothing in the course of working, and traditional welding jig adopts metal to make, and is electrically conductive easily, probably produces static and produces the damage to circuit board or chip when the welding.

Disclosure of Invention

The utility model aims at providing a flexible ceramic centre gripping anchor clamps for solving pass chip welding jig centre gripping size can not adjust, the breakable, the electrically conductive problem of metal fixture of rigidity centre gripping circuit board, and provide.

The utility model adopts the technical proposal that: flexible ceramic clamping fixture: the circuit board clamping device comprises a ceramic base and two ceramic sliding blocks arranged on the ceramic base, wherein the ceramic sliding blocks are symmetrically arranged and can slide close to or away from each other; the ceramic sliding block comprises a lower half part parallel to the ceramic base and an upper half part perpendicular to the lower half part, a groove is formed in the corresponding surface of the upper half part of the ceramic sliding block, and the flexible clamping device is arranged in the groove.

Further, the flexible clamping device comprises an air bag arranged in the groove, the air bag is in direct contact with the clamped circuit board,

furthermore, a pressure relief valve is arranged on the air bag and used for adjusting the maximum pressure borne by the air bag.

Further, the air bag is a long strip-shaped air bag made of rubber materials.

Further, the length of the deflated airbag is smaller than the width of the groove.

Furthermore, an air inlet nozzle is arranged at one end of the air bag in the length direction, and the pressure release valve is arranged at the other end of the air bag.

Furthermore, the sliding driving device comprises a screw and two nuts sleeved on the screw, the screw is divided into a half part from the middle and a half part with positive threads and a half part with reverse threads, one nut is a positive internal thread, the other nut is a reverse internal thread, the nuts are respectively connected with the ceramic sliding block, the screw is connected with the lower surface of the ceramic base through bearing seats arranged at two ends, and one end of the screw is provided with a hand wheel for an operator to rotate the screw; the ceramic base is provided with a long hole, and the upper part of the nut penetrates through the long hole through a connecting block to be connected with the ceramic sliding block.

Furthermore, the vertical section of the connecting block is T-shaped, the upper plane end of the T-shaped connecting block is connected with the ceramic sliding block through a bolt, a counter bore for accommodating the upper end of the connecting block is formed in the lower end face of the ceramic sliding block, and the head of the bolt is not higher than the lower end face of the ceramic sliding block in the counter bore.

Further, the connecting block is connected with the nut through welding or bonding.

Furthermore, one end or two ends of the long hole are provided with openings for installing the nut and the connecting block.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the flexible ceramic clamping fixture provided by the utility model adopts a sliding clamping structure to adapt to circuit boards with different sizes; the utility model adopts the contact of the air bag and the circuit board, and the flexible clamping ensures that the clamp can not damage the circuit board in the clamping process; the utility model discloses a most original paper adopts ceramic material to make, and static is prevented in the insulation, guarantees that the circuit board does not receive static in the course of working to influence, has solved three big problems of traditional circuit board welding jig, has better spreading value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a front sectional view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

The reference numerals are illustrated below:

1. a ceramic base; 2. a ceramic slider; 3. a slide driving device; 301. a screw; 302. a nut,

303. A hand wheel; 304. a bearing seat; 4. a flexible clamping device; 401. an air bag; 402. a pressure relief valve; 403. an air inlet nozzle; 5. a groove; 6. a strip hole; 7. a circuit board; 8. connecting blocks; 9. a counterbore.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-3, the flexible ceramic clamping fixture of this embodiment includes a ceramic base 1 and two ceramic sliders 2 disposed on the ceramic base 1, the ceramic sliders 2 are symmetrically disposed and can slide close to or away from each other, a slide driving device 3 is disposed on the ceramic base 1 to drive the ceramic sliders 2 to slide, and a flexible clamping device 4 for clamping a circuit board 7 is disposed on a corresponding side of the ceramic sliders 2; the ceramic sliding block 2 comprises a lower half part parallel to the ceramic base and an upper half part vertical to the lower half part, a groove 5 is formed in the corresponding surface of the upper half part of the ceramic sliding block 2, the flexible clamping device 4 is arranged in the groove 5, and therefore a circuit board is placed in the groove 5 firstly and clamped through the flexible clamping device 4, and the fixing is stable and firm.

As shown in fig. 3, the flexible clamping device 4 includes an air bag 401 disposed in the groove 5, the air bag 401 directly contacts the clamped circuit board 7, a pressure release valve 402 is disposed on the air bag 401, the pressure release valve 402 is used for adjusting the maximum pressure borne by the air bag 401, and when the clamping force exceeds a set value, the circuit board 7 may be damaged, the pressure release valve 402 releases the pressure to soften the air bag 401, so as to reduce the pressure on the circuit board 7 and protect the circuit board from being damaged. In order to enable the attaching area of the air bag 401 and the circuit board 7 to be larger and better in flexibility, the air bag 401 is a long-strip-shaped air bag made of rubber, the air bag 401 is made of rubber flexible materials, certain elastic deformation can be generated while insulation is achieved to protect the circuit board 7 from being damaged, the length of the deflated air bag 401 is smaller than the width of the groove 5, the air bag 401 can be conveniently installed into the groove in the deflation state, and the air bag 401 is clamped in the groove 5 after being restarted. An air inlet nozzle 403 is arranged at one end of the air bag 401 in the length direction, the air inlet nozzle 403 is used for inflating the air bag 401, and the other end of the air bag is provided with the pressure relief valve 402.

As shown in fig. 2, the sliding driving device 3 includes a screw 301 and two nuts 302 sleeved on the screw 301, the screw 301 is divided by half from the middle into a positive thread and a negative thread, one of the nuts 302 is a positive internal thread, the other nut 302 is a negative internal thread, the nuts 302 are respectively connected with the ceramic slider 2, and the positive and negative threads are designed to enable the two nuts 302 to simultaneously slide inwards or outwards when the screw 301 rotates, so as to realize smooth clamping and opening actions; the screw 301 is connected with the lower surface of the ceramic base 1 through bearing seats 304 arranged at two ends, and a hand wheel 303 used for an operator to rotate the screw is arranged at one end of the screw 301; the ceramic base 1 is provided with a strip hole 6, and the upper part of the nut 302 penetrates through the strip hole 6 through a connecting block 8 to be connected with the ceramic sliding block 2. Therefore, the sliding driving device 3 is integrally arranged below the ceramic base 1, so that the working table above the ceramic base 1 only has the circuit board 7, the ceramic slide block 2 for clamping the circuit board 7 and the flexible clamping device 4, and no equipment on the table affects welding chips of workers.

Further, in order to facilitate installation of equipment, the vertical section of the connecting block 8 is in a T shape, the upper plane end of the T shape of the connecting block 8 is connected with the ceramic slide block 2 through a bolt, a counter bore 9 for accommodating the upper end of the connecting block is formed in the lower end face of the ceramic slide block 2, the bolt head is arranged in the counter bore 9 and is not higher than the lower end face of the ceramic slide block 2, so that the connecting block 8 and the ceramic slide block 2 are connected and accommodated at the inner bottom of the ceramic slide block 2, sliding of the bottom of the ceramic slide block 2 is not affected, meanwhile, the area of the connecting block 8, which penetrates through the strip hole 6, is greatly reduced due to the design that the vertical section of the connecting block is in a T shape, the width of the strip hole 6 can be reduced, and the upper table top of the ceramic base 1 is more tidy.

Further, the connecting block 8 is connected with the nut 302 by welding, and an opening is provided at one end of the elongated hole 6 for mounting the nut 302 and the connecting block 8.

Furthermore, the ceramic base and the ceramic sliding block are made of ceramic materials, so that the ceramic base and the ceramic sliding block are insulated and prevent static electricity, and the circuit board is not influenced by static electricity in the processing process.

The working process of the embodiment:

firstly, an operator rotates a hand wheel 303 to open two ceramic sliding blocks 2, a circuit board 7 is placed in a groove 5, then the reverse hand wheel 303 is rotated to enable an air bag 401 on the two ceramic sliding blocks 2 to clamp the circuit board 7, after clamping, the work such as chip welding can be carried out, if the clamping force is too large due to misoperation of the operator, the air pressure in the air bag 401 exceeds the design value, the pressure relief valve 402 relieves the pressure to discharge the air in the air bag 401, the circuit board 7 is protected from being damaged, after welding, firstly, the operator rotates the hand wheel 303 to open the two ceramic sliding blocks 2, the circuit board is taken out and welded, and the welding process is completed.

The foregoing illustrates and describes the general principles, features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. Flexible ceramic centre gripping anchor clamps, its characterized in that: the circuit board clamping device comprises a ceramic base and two ceramic sliding blocks arranged on the ceramic base, wherein the ceramic sliding blocks are symmetrically arranged and can slide close to or away from each other; the ceramic sliding block comprises a lower half part parallel to the ceramic base and an upper half part perpendicular to the lower half part, a groove is formed in the corresponding surface of the upper half part of the ceramic sliding block, and the flexible clamping device is arranged in the groove.

2. The flexible ceramic clamping fixture of claim 1, wherein: the flexible clamping device comprises an air bag arranged in the groove, and the air bag is in direct contact with the clamped circuit board.

3. The flexible ceramic clamping fixture of claim 2, wherein: and a pressure relief valve is arranged on the air bag and used for adjusting the maximum pressure borne by the air bag.

4. The flexible ceramic clamping fixture of claim 3, wherein: and one end of the air bag in the length direction is provided with an air inlet nozzle, and the other end of the air bag is provided with the pressure release valve.

5. The flexible ceramic clamping fixture of claim 2, wherein: the air bag is a long strip-shaped air bag made of rubber materials.

6. The flexible ceramic clamping fixture of claim 5, wherein: the length of the side of the deflated air bag is smaller than the width of the groove.

7. The flexible ceramic clamping fixture of claim 1, wherein: the sliding driving device comprises a screw and two nuts sleeved on the screw, wherein half of the screw is divided from the middle into a positive thread and a negative thread, one nut is a positive internal thread, the other nut is a negative internal thread, the nuts are respectively connected with the ceramic sliding block, the screw is connected with the lower surface of the ceramic base through bearing seats arranged at two ends, and one end of the screw is provided with a hand wheel used for an operator to rotate the screw; the ceramic base is provided with a long hole, and the upper part of the nut penetrates through the long hole through a connecting block to be connected with the ceramic sliding block.

8. The flexible ceramic clamping fixture of claim 7, wherein: the connecting block is T-shaped in vertical section, the T-shaped upper plane end of the connecting block is connected with the ceramic sliding block through a bolt, a counter bore for accommodating the upper end of the connecting block is formed in the lower end face of the ceramic sliding block, and the head of the bolt is not higher than the lower end face of the ceramic sliding block in the counter bore.

9. The flexible ceramic clamping fixture of claim 8, wherein: the connecting block is connected with the nut through welding or bonding.

10. The flexible ceramic clamping fixture of claim 8, wherein: one end or two ends of the long hole are provided with openings for installing the nut and the connecting block.