Coaxial pressing and bonding tool with controllable pressure

Abstract

The utility model provides a pressure-controllable coaxial press-fit bonding tool which is composed of a top plate, a first V-shaped positioning plate, a second V-shaped positioning plate, a push plate, a press-fit base, a bottom plate, a thrust bearing, a flexible coaxial ring, a first spring and a second spring, and the first V-shaped positioning plate and the second V-shaped positioning plate are oppositely arranged to form a press-fit cavity. The pressing base, the flexible coaxial ring, the thrust bearing and the push plate are arranged in the pressing cavity, and a self-adaptive adjusting assembly is arranged on the side face of the pressing cavity to automatically conduct coaxial centering. According to the utility model, the pressing and bonding quality of products, the coaxiality of the products and the production efficiency are improved, the pressing and bonding requirements of small cylindrical coaxial products are met, the research, development and manufacturing costs are saved, and meanwhile, the whole structure is simple and suitable for large-scale industrial production.

Description

TECHNICAL FIELD

[0001] The utility model relates to transducer production equipment technical field, especially a coaxial compression bonding tool of controllable pressure is provided, and is applicable to the field such as water sound transducer, electronic component assembly. BACKGROUND

[0002] The existing compression tool generally has the problems of large volume, uncontrollable pressure, no coaxial compression design, etc., resulting in insufficient compression product precision. In production, small components or piezoelectric ceramics need to be coaxially bonded to maintain performance stability, usually accompanied by a certain batch, and lack of reasonably designed bonding tool, which often leads to product quality unqualified, low production efficiency and other problems. SUMMARY

[0003] The utility model solves the technical problems: in order to overcome the deficiencies in the prior art, the utility model provides a coaxial compression bonding tool of controllable pressure, which optimizes the structure design, improves the coaxial implementation mode and the pressure transmission form, and improves the product compression bonding quality.

[0004] The utility model solves the technical problems and adopts the technical scheme: a coaxial compression bonding tool of controllable pressure, comprising a first V-shaped positioning plate and a second V-shaped positioning plate, a first V-shaped groove is arranged on the first V-shaped positioning plate, a second V-shaped groove is arranged on the second V-shaped positioning plate, and the first V-shaped groove and the second V-shaped groove are oppositely arranged to form a compression cavity together, top plates and bottom plates are arranged at the upper and lower ends of the first V-shaped positioning plate and the second V-shaped positioning plate respectively, the top plates are connected with the first V-shaped positioning plate and the second V-shaped positioning plate through second screws, the bottom plates are connected with the first V-shaped positioning plate and the second V-shaped positioning plate through fourth screws, and there are movable gaps between the connection positions of the second screws and the top plates and the connection positions of the fourth screws and the bottom plates, an adaptive adjustment assembly for adaptively adjusting the distance between the first V-shaped positioning plate and the second V-shaped positioning plate is arranged on the right side of the second V-shaped positioning plate, a compression base, a flexible coaxial ring, a thrust bearing and a push plate are sequentially arranged in the compression cavity from bottom to top, the lower end of the compression base is movably connected with the bottom plate, a second spring is sleeved on the compression base, and the second spring is elastically supported between the compression base and the bottom plate; a first screw is further arranged on the top plate, the first screw is threadedly connected on the top plate, and the lower end of the first screw extends downward to abut on the push plate, the components to be coaxially compressed are inserted from the upper and lower ends of the flexible coaxial ring respectively, so that the flexible coaxial ring completely wraps the compression surface. As a preferred, the two components to be coaxially compressed are arranged at the middle position of the flexible coaxial ring.

[0005] Further, the self-adapting adjusting assembly comprises a plurality of third screws and a plurality of first springs, each of the first springs is sleeved on the third screw, the third screw passes through the second V-shaped positioning plate and is connected to the first V-shaped positioning plate at the end, the first spring is elastically supported between the third screw and the second V-shaped positioning plate, and a clearance exists between the third screw and the second V-shaped positioning plate.

[0006] Further, in order to realize the clearance connection, the top plate is provided with a first through hole, the first V-shaped positioning plate and the second V-shaped positioning plate are provided with first threaded holes corresponding to the first through hole at the upper end, and the second screw is threadedly connected in the first threaded hole after passing through the first through hole; the bottom plate is provided with a second through hole, and the first V-shaped positioning plate and the second V-shaped positioning plate are provided with second threaded holes corresponding to the second through hole at the lower end, and the fourth screw is threadedly connected in the second threaded hole after passing through the second through hole. The clearance can realize the adjustment of the self-adapting adjusting assembly, so that the coaxial centering of the to-be-pressed component is realized.

[0007] Further, the first V-shaped positioning plate is further provided with third threaded holes in the transverse direction, the second V-shaped positioning plate is further provided with third through holes in the transverse direction, the number and positions of the third threaded holes and the third through holes are one-to-one corresponding, and the third screw is threadedly connected in the third threaded hole after passing through the third through hole.

[0008] Further, the middle part of the thrust bearing is provided with a shaft hole.

[0009] Further, the upper end of the push plate is provided with a positioning groove, the lower end of the push plate is provided with a positioning column, the lower end of the first screw is inserted into the positioning groove, and the positioning column is inserted into the center hole of the thrust bearing.

[0010] As preferred, the top plate, the bottom plate, the first V-shaped positioning plate, the second V-shaped positioning plate, the pressing base and the push plate are all made of stainless steel. The flexible coaxial ring is made of polytetrafluoroethylene. The first screw is an M5 cup head internal hexagonal screw, the second screw and the fourth screw are plug screws, and the third screw is an M4 cup head internal hexagonal screw. The thrust bearing and the second spring are both standard parts.

[0011] The coaxial pressing and bonding tool with controllable pressure has the advantages that the product pressing and bonding quality is improved, the product coaxiality is improved, the production efficiency is improved, the pressing and bonding requirements of small cylindrical coaxial products are met, the research and development and manufacturing costs are saved, the overall structure is simple, and the tool is suitable for large-scale industrial production. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in connection with the drawings and examples.

[0013] Figure 1It is the three-dimensional structure schematic view of the pressure-controllable coaxial compression bonding tool.

[0014] Figure 2 It is the side structure schematic view of the pressure-controllable coaxial compression bonding tool.

[0015] Figure 3 It is the cross-section structure schematic view of the pressure-controllable coaxial compression bonding tool.

[0016] Figure 4 It is the internal structure schematic view of the pressure-controllable coaxial compression bonding tool.

[0017] Figure 5 It is the structure schematic view of the first V-shaped positioning plate.

[0018] Figure 6 It is the structure schematic view of the push plate.

[0019] Figure 7 It is the three-dimensional structure schematic view of the thrust bearing.

[0020] Figure 8 It is the cross-section structure schematic view of the thrust bearing.

[0021] Figure 9 It is the structure schematic view of the flexible coaxial ring and two components to be coaxially compressed.

[0022] In the figure: 1, first screw, 2, second screw, 3, push plate, 3.1, positioning groove, 3.2, positioning column, 4, thrust bearing, 4.1, shaft hole, 5, first V-shaped positioning plate, 5.1, first V-shaped groove, 5.2, second threaded hole, 5.3, third threaded hole, 6, flexible coaxial ring, 7, second V-shaped positioning plate, 8, third screw, 9, first spring, 10, compression base, 11, bottom plate, 12, second spring, 13, top plate, 14, fourth screw, 15, component to be coaxially compressed. DETAILED DESCRIPTION

[0023] The utility model will be explained further in detail now in combination with the drawings. These drawings are all simplified schematic views, and only the basic structure of the utility model is schematically shown, therefore, only the structure related to the utility model is shown, and the direction and reference (such as up, down, left, right and the like) can be only used to help the description of the features in the drawings. Therefore, the following specific embodiments are not in the restrictive sense, and the range of the claimed subject matter is only limited by the appended claims and their equivalents.

[0024] As Figures 1-3As shown, the utility model discloses a pressure controllable coaxial compression bonding tool, including first V type locating plate 5 and second V type locating plate 7, be equipped with first V type groove 5.1 on first V type locating plate 5, be equipped with second V type groove on second V type locating plate 7, both oppositely arranged first V type groove 5.1 and second V type groove form compression cavity together, first V type locating plate 5 and second V type locating plate 7 upper and lower ends are equipped with top plate 13 and bottom plate 11 respectively, first V type locating plate 5 and second V type locating plate 7 upper end are equipped with the first threaded hole corresponding with first through hole, after second screw 2 passes through first through hole, is connected in first threaded hole with screw thread, make top plate 13 pass through second screw 2 and be connected with first V type locating plate 5 and second V type locating plate 7, bottom plate 11 is equipped with second through hole, first V type locating plate 5 and second V type locating plate 7 lower end are equipped with the second threaded hole 5.2 corresponding with second through hole, fourth screw 14 passes through second through hole and is connected in second threaded hole 5.2 with screw thread, make bottom plate 11 pass through fourth screw 14 and be connected with first V type locating plate 5 and second V type locating plate 7, and second screw 2 and the connecting place of top plate 13 and fourth screw 14 and the connecting place of bottom plate 11 all have movable gap, second V type locating plate 7 right side is equipped with the self -adaptation adjusting assembly of self -adaptation adjusting the distance between first V type locating plate 5 and second V type locating plate 7, the compression cavity is equipped with compression base 10, flexible coaxial ring 6, thrust bearing 4 and push plate 3 from below to above in proper order, the lower end of compression base 10 is movably connected with bottom plate 11, and right second spring 12 is sleeved on compression base 10, and second spring 12 is elastically supported between compression base 10 and bottom plate 11, top plate 13 is also equipped with first screw 1, first screw 1 is connected on top plate 13 with screw thread, and its lower end extends downwards and can rest on push plate 3, as Figure 9 As shown, the coaxial compression components 15 are inserted from the upper and lower ends of the flexible coaxial ring 6, so that the flexible coaxial ring 6 completely wraps the compression surface. As a preferred embodiment, the two coaxial compression components 15 are arranged at the middle position of the flexible coaxial ring 6. The size and shape of the flexible coaxial ring 6 can be changed and matched according to the size and specification of the coaxial compression components 15.

[0025] As Figure 2As shown, the adaptive adjustment assembly comprises a plurality of third screws 8 and a plurality of first springs 9, each of the first springs 9 is sleeved on the third screw 8, the third screw 8 passes through the second V-shaped positioning plate 7 and is connected to the first V-shaped positioning plate 5 at the end, so that the first spring 9 is elastically supported between the third screw 8 and the second V-shaped positioning plate 7, and there is a clearance between the third screw 8 and the second V-shaped positioning plate 7. The adaptive adjustment assembly can be arranged on one side of the first V-shaped positioning plate 5 or on one side of the second V-shaped positioning plate 7. In the embodiment, the adaptive adjustment assembly is arranged on one side of the second V-shaped positioning plate 7, so that the third screw 8 passes through the second V-shaped positioning plate 7 and is connected to the first V-shaped positioning plate 5 at the end, so that the first spring 9 is elastically supported between the third screw 8 and the second V-shaped positioning plate 7, and there is a clearance between the third screw 8 and the second V-shaped positioning plate 7. The first V-shaped positioning plate 5 is further provided with a horizontal third threaded hole 5.3, and the second V-shaped positioning plate 7 is further provided with a horizontal third through hole, the number and position of the third threaded hole 5.3 and the third through hole are one-to-one corresponding, and the third screw 8 passes through the third through hole and is screwed in the third threaded hole 5.3. In the embodiment, the first threaded hole is four, and the corresponding third through hole is also four, so that four second screws 2 can be connected, and the first spring 9 is also four. The structure of the second V-shaped positioning plate 7 is basically the same as that of the first V-shaped positioning plate 5, the difference is that the position of the first threaded hole of the first V-shaped positioning plate 5 corresponds to the position of the third through hole of the second V-shaped positioning plate 7, and the other structures can be referred to Figure 5 structure.

[0026] As Figures 6-8 shown, the middle part of the thrust bearing 4 is provided with a shaft hole 4.1. The upper end of the push plate 3 is provided with a positioning groove 3.1, and the lower end of the push plate 3 is provided with a positioning column 3.2, the lower end of the first screw 1 is inserted into the positioning groove 3.1, and the positioning column 3.2 is inserted into the center hole of the thrust bearing 4.

[0027] As preferred, the top plate 13, the bottom plate 11, the first V-shaped positioning plate 5, the second V-shaped positioning plate 7, the pressing base 10 and the push plate 3 are all made of stainless steel. The flexible coaxial ring 6 is made of polytetrafluoroethylene. The first screw 1 is an M5 cup head internal hexagonal screw, the second screw 2 and the fourth screw 14 are plug screws, and the third screw 8 is an M4 cup head internal hexagonal screw.

[0028] Principle of use:

[0029] The bottom plate 11 and the first V-shaped positioning plate 5 and the second V-shaped positioning plate 7 are roughly positioned from bottom to top by four plug screws (i.e. fourth screws 14), the second spring 12 (as a pressing spring) is sequentially plugged into the pressing cavity between the first V-shaped positioning plate 5 and the second V-shaped positioning plate 7, the pressing base 10, the flexible coaxial ring 6 and the to-be-stuck object, i.e. the to-be-coaxially-pressed component 15 are sequentially plugged into the pressing cavity, then the thrust bearing 4 and the push plate 3 are put in, the top plate 13 is covered on the upper end of the V-shaped positioning plate, and the rough positioning is performed by plug screws (i.e. second screws 2), the positions of the first V-shaped positioning plate 5 and the second V-shaped positioning plate 7 are preliminarily positioned, pre-connection is realized, the pre-connection is only screw connection, in a loose state, not locked in place, and a space for adjustment and centering is reserved.

[0030] The installation of the self-adaptive adjusting assembly: four third screws 8 and four first springs 9 (as pressing springs) are installed and screwed according to the manners shown in Figure 1 and Figure 2 , until the third screws 8 are screwed with force, the first V-shaped positioning plate 5 and the second V-shaped positioning plate 7 generate clamping force in the transverse direction through the first springs 9, and the coaxiality of the to-be-stuck workpiece is self-adaptively adjusted, after the adjustment is completed, the second screws 2 and the fourth screws 14 (i.e. plug screws) are tightened and screwed to the specified position.

[0031] Based on the above ideal embodiments of the utility model, through the above description, relevant staff can make various changes and modifications without deviating from the scope of the utility model. The technical scope of the utility model is not limited to the content in the specification, and must be determined according to the scope of claims.

Claims

1. A pressure-controllable coaxial press-bonding tool, characterized by: The utility model provides a first V type locating plate and a second V type locating plate, a first V type groove is equipped on the first V type locating plate, a second V type groove is equipped on the second V type locating plate, and the first V type groove and the second V type groove are oppositely arranged to form a pressing cavity together, top plate and bottom plate are respectively arranged on the upper and lower ends of the first V type locating plate and the second V type locating plate, the top plate is connected with the first V type locating plate and the second V type locating plate through the second screw, the bottom plate is connected with the first V type locating plate and the second V type locating plate through the fourth screw, and the connecting portions of the second screw and the top plate and the fourth screw and the bottom plate all have a movable gap, an adaptive adjusting assembly for adjusting the distance between the first V type locating plate and the second V type locating plate is arranged on the right side of the second V type locating plate, a pressing base, a flexible coaxial ring, a thrust bearing and a push plate are sequentially arranged in the pressing cavity from bottom to top, the lower end of the pressing base is movably connected with the bottom plate, a second spring is sleeved on the pressing base, and the second spring is elastically supported between the pressing base and the bottom plate, a first screw is further arranged on the top plate, the first screw is threadedly connected on the top plate, and the lower end of the first screw extends downward to abut against the push plate, and the coaxially pressed parts are inserted into the upper and lower ends of the flexible coaxial ring respectively so that the flexible coaxial ring completely wraps the pressing surface.

2. The pressure-controllable coaxial press-bonding tooling of claim 1, wherein: The adaptive adjusting assembly comprises a plurality of third screws and first springs, each first spring is sleeved on a third screw, the third screw passes through the second V type locating plate and is connected to the first V type locating plate at the end portion, the first spring is elastically supported between the third screw and the second V type locating plate, and a movable gap exists between the connecting portion of the third screw and the second V type locating plate.

3. The pressure-controllable coaxial press-bonding tooling of claim 1, wherein: A first through hole is arranged on the top plate, first threaded holes corresponding to the first through hole are arranged on the upper ends of the first V type locating plate and the second V type locating plate, and the second screw is threadedly connected in the first threaded holes after passing through the first through hole; a second through hole is arranged on the bottom plate, second threaded holes corresponding to the second through hole are arranged on the lower ends of the first V type locating plate and the second V type locating plate, and the fourth screw is threadedly connected in the second threaded holes after passing through the second through hole.

4. The pressure-controllable coaxial press-bonding tooling of claim 3, wherein: Third threaded holes and third through holes are further arranged on the first V type locating plate and the second V type locating plate respectively, the number and position of the third threaded holes and the third through holes correspond to each other, and the third screw is threadedly connected in the third threaded holes after passing through the third through holes.

5. The pressure-controllable coaxial press-bonding tooling of claim 1, wherein: A shaft hole is arranged in the middle portion of the thrust bearing.

6. The pressure-controllable coaxial press-bonding tooling of claim 1, wherein: A positioning groove is arranged on the upper end of the push plate, a positioning column is arranged on the lower end of the push plate, the lower end of the first screw is inserted into the positioning groove, and the positioning column is inserted into the center hole of the thrust bearing.

7. The pressure-controllable coaxial press-bonding tooling of claim 1, wherein: The top plate, the bottom plate, the first V type locating plate, the second V type locating plate, the pressing base and the push plate are all made of stainless steel.

8. The pressure-controllable coaxial press-bonding tooling of claim 1, wherein: The flexible coaxial ring is made of polytetrafluoroethylene.

9. The pressure-controllable coaxial press-bonding tooling of claim 2, wherein: The first screw is an M5 cup head hexagonal screw, the second screw and the fourth screw are plug screws, and the third screw is an M4 cup head hexagonal screw.

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