Laminating tool
By using spherical sub-mechanisms and elastic parts with multiple degrees of freedom in laminated tooling, the problem of poor swing and parallelism in the prior art is solved, and the uniform extrusion and stress distribution of the acoustic stacking material are achieved, and the performance and operation convenience of the tooling are improved.
Patent Information
- Application Number
- CN202422222080.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The existing laminated tooling has insufficient requirements for compression force and parallelism, which leads to the problems of block swing and poor parallelism during the glue curing of the acoustic laminated materials, which affects the performance and quality of the transducer.
The spherical secondary mechanism with multiple degrees of freedom is used to drive the block movement, so that the stressed area is always at the geometric center of the block. Combined with the use of elastic parts, it ensures the bonding of the block with the acoustic stacking material and the stress uniformity.
The acoustic laminated material is uniformly extruded by the pressing block, which improves the fit between the pressing block and the material surface, enhances the self-adjustment ability, ensures the consistency of the stress distribution of the acoustic laminated material, and improves the overall structural simplicity and operation convenience of the tooling.
Smart Images
Figure CN223001232U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lamination tooling, and further relates to a lamination tooling. Background Art
[0002] An ultrasonic transducer is a device that can mutually convert electrical and acoustic energies, and is widely used in fields such as non-destructive testing and medical diagnosis. Its core component is a piezoelectric material with positive and inverse piezoelectric effects. The piezoelectric material, acoustic matching layer and / or acoustic backing layer are combined into an acoustic stack, and each layer of the acoustic stack is usually bonded by a specific glue. The thickness and thickness consistency of the glue are one of the key factors to ensure the performance quality of the transducer.
[0003] The existing lamination tooling is provided with a parallel-jaw vice on a spacer block. The pressing force and parallelism requirements during lamination are ensured by the parallel-jaw vice. The pressing force can be ensured relatively well, but the parallel-jaw vice is driven by a lead screw and guided by the guide rail of the T-slot. Since the parallel-jaw vice is a standard fixture, and for smoothness, the clearance between the lead screw, T-slot opening and the mating nut of the tenon head is relatively large, and the movable pressure block swings greatly, resulting in the inability to ensure the parallelism between the pressure block and the spacer block. Moreover, the glue for bonding the acoustic stack generally needs to be cured in an oven, and the lead screw of the parallel-jaw vice needs to be lubricated with lubricating oil. In this way, there is also a risk of polluting the oven and the acoustic stack when the lubricating oil evaporates or flows out. Summary of the Utility Model
[0004] Aiming at the above technical problems, the purpose of the utility model is to provide a lamination tooling. By driving the movement of the pressure block through a spherical pair mechanism with multiple degrees of freedom, the stress-bearing area can always be at the geometric center of the pressure block, which is beneficial to the uniform extrusion of the acoustic stack material by the pressure block, and the surface of the pressure block is more closely attached to the acoustic stack material. Moreover, the spherical pair mechanism is a surface contact, which is not easy to damage the stress-bearing area and has better self-adjusting ability. The overall structure of the lamination tooling is simple, the operation is convenient, and the stress distribution on the acoustic stack material during pressurization is consistent.
[0005] To achieve the above purpose, the utility model provides a lamination tooling, including a first component and a second component. A placement position is provided on the first component, and an acoustic stack material is suitable for being placed on the placement position;
[0006] The second component is suitable for being assembled above the first component. A spherical pair mechanism and a pressure block are suitable for being installed on the second component. The pressure block matches the position of the placement position, and the spherical pair mechanism is suitable for driving the pressure block to move and extrude the acoustic stack material.
[0007] In some embodiments, the spherical pair mechanism includes a ball fastener and a push plate. One end of the ball fastener is provided with a spherical head. The push plate is arranged above the pressing block. A spherical pit is provided at the top of the push plate. The spherical head is adapted to be abutted in the spherical pit and drive the push plate and the pressing block to move.
[0008] In some embodiments, the spherical pit is arranged at the center of the top of the push plate, and the spherical pit matches the spherical head, so that the force-bearing area of the push plate is always at its geometric center.
[0009] In some embodiments, an elastic member is further included. The elastic member is arranged between the push plate and the pressing block. The elastic member can play a role in adjusting the balance of the pressing block, so that the pressure received by the acoustic laminate material is more uniform.
[0010] In some embodiments, an opening is provided in the middle of the elastic member, so that the force on the pressing block is more uniform, and the bottom of the pressing block fits better with the upper surface of the acoustic laminate material.
[0011] In some embodiments, the elastic member is any one of a square ring shape, a circular ring shape, an elliptical ring shape, and an irregular ring shape.
[0012] In some embodiments, the second component includes a cover plate and a pressing plate. The pressing plate is adapted to be installed on the first component. A placement groove is provided on the pressing plate. The push plate and the pressing block are adapted to be arranged in the placement groove, and the bottom of the pressing block is adapted to penetrate through the bottom of the pressing plate and match with the placement position. The cover plate is adapted to cover above the pressing plate. The ball fastener is adapted to penetrate through the cover plate and connect the push plate in the placement groove.
[0013] In some embodiments, the placement groove includes a first groove and a second groove. The second groove is arranged at the bottom of the first groove. The pressing block includes a first part and a second part. The first part and the push plate are adapted to match with the inner side wall of the first groove. The first part is adapted to abut against the bottom of the first groove. The second part is adapted to penetrate through the second groove and contact the acoustic laminate material.
[0014] In some embodiments, the first component includes a pair of vertical plates, a bottom plate, and a cushion block. The pair of vertical plates are respectively arranged at opposite ends of the top of the bottom plate. The cushion block is arranged at the center of the top of the bottom plate. A placement position is provided at the top of the cushion block.
[0015] In some embodiments, the tops of the pair of vertical plates are flush with each other. The pressing plate is adapted to be fixedly connected to the vertical plates, so that the bottom of the pressing block is adapted to be arranged parallel to the top of the cushion block.
[0016] Compared with the prior art, the laminating tool provided by the utility model has at least one of the following beneficial effects:
[0017] 1. By driving the pressing block to move through a spherical pair mechanism with multiple degrees of freedom, the stressed area can always be at the geometric center of the pressing block, which is beneficial for the pressing block to evenly extrude the acoustic laminate material, and the pressing block fits better with the surface of the acoustic laminate material. Moreover, the spherical pair mechanism is a surface contact, which is not easy to damage the stressed area, and has better self-adjustment ability. The overall structure of the laminating tool is simple, easy to operate, and the stress distribution on the acoustic laminate material during pressurization is consistent.
[0018] 2. An elastic member is provided between the push plate and the pressing block. When receiving the reaction force of the elastic member, since the stressed area of the ball head fastener is always at the geometric center of the push plate, the thrust at both ends of the push plate is more balanced after self-adjustment.
[0019] 3. An opening is provided in the middle of the elastic member, so that the elastic member is more evenly stressed, the thickness of the elastic member after being stressed is more consistent, and further the pressing block is more evenly stressed, the pressing block fits better with the surface of the acoustic laminate material, and the stress on the acoustic laminate material after being stressed is more evenly distributed.
[0020] 4. The push plate and the pressing block are adapted to be arranged in the placement groove, and the bottom of the pressing block is adapted to penetrate through the bottom plate and match the placement position. The sizes of the push plate and the pressing block in the placement groove are adapted to minimize the warping of the pressing block.
[0021] 5. A pair of vertical plates are respectively arranged at opposite ends of the top of the bottom plate. At this time, the tops of the vertical plates can be ground simultaneously, which can ensure the consistency and parallelism of the heights after the vertical plates and the pressing plate are assembled, so that the second component is horizontally arranged above the first component, and the pressing block and the spacer are parallel to each other. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in conjunction with the drawings in the preferred embodiments.
[0023] Figure 1 is a sectional view of the laminating tool;
[0024] Figure 2 is a sectional view of the spherical pair mechanism;
[0025] Figure 3 is a stress distribution diagram of the rectangular elastic member;
[0026] Figure 4 is a stress curve diagram of the rectangular elastic member;
[0027] Figure 5 is a stress distribution diagram of the square frame-shaped elastic member;
[0028] Figure 6It is the stress curve diagram of the square-shaped elastic part;
[0029] Figure 7 It is the stress distribution diagram of the circular elastic part;
[0030] Figure 8 It is the stress distribution diagram of the circular ring-shaped elastic part.
[0031] Explanation of the reference numerals in the attached drawings:
[0032] The first component 1, vertical plate 11, bottom plate 12, cushion block 13, placement position 130, second component 2, cover plate 21, pressing plate 22, placement groove 220, spherical pair mechanism 3, ball head fastener 31, push plate 32, elastic part 33, opening 331, pressing block 4, acoustic laminate material 5, stress curve 6. Specific embodiments
[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, and other embodiments can also be obtained.
[0034] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, components with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation.
[0035] It should also be further understood that the term "and / or" used in the specification and appended claims of the present application refers to any combination and all possible combinations of one or more of the related listed items, and includes these combinations.
[0036] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0037] In addition, in the description of the present application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance. It should be noted that the above-mentioned embodiments can be freely combined as needed. The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.
[0038] Referring Figure 1 to Figure 2 and
[0039] , the present utility model provides a lamination tooling, which includes a first component 1 and a second component 2. A placement position 130 is provided on the first component 1, and a sound laminate material 5 is suitable to be placed on the placement position 130. The second component 2 is suitable to be assembled above the first component 1. A spherical pair mechanism 3 and a pressing block 4 are suitable to be installed on the second component 2. The pressing block 4 is matched with the position of the placement position 130, and the spherical pair mechanism 3 is suitable to drive the pressing block 4 to move and extrude the sound laminate material 5.
[0040] Specifically, the acoustic laminate material 5 is an acoustic laminate formed by combining a piezoelectric material and an acoustic matching layer and / or an acoustic backing layer. The first component 1 is suitable for placing the acoustic laminate material 5, the second component 2 is arranged above the first component 1, and the second component 2 is provided with a spherical pair mechanism 3 and a pressing block 4, the pressing block 4 is suitable for matching with the placement position 130, and the spherical pair mechanism 3 is suitable for driving the pressing block 4 to translate downward and squeeze the acoustic laminate material 5. The spherical pair mechanism 3 includes a ball head fastener 31 and a push plate 32, one end of the ball head fastener 31 is provided with a spherical head, the push plate 32 is arranged above the pressing block 4, and the top of the push plate 32 is provided with a spherical pit, and the spherical head is suitable for abutting against the spherical pit and driving the push plate 32 and the pressing block 4 to move. The ball head fastener 31 includes but is not limited to a ball head screw, a ball head bolt, etc. The spherical head on the ball head fastener 31 and the spherical pit on the push plate 32 form a three-degree-of-freedom spherical sub-mechanism 3, which can rotate freely. If it is not the spherical sub-mechanism 3, the coaxiality of the screw hole and the fastener after assembly is relatively poor, the fastener is not perpendicular to the push plate 32, and the force points on the push plate 32 vary greatly and will not be at the geometric center of the push plate 32. In addition, the point contact or line contact stress is large, which can easily cause damage to the force area of the push plate 32. The damage situation is different each time, and the damage will also cause the deviation to continue to expand. The center line of the force of the spherical sub-mechanism 3 has changed, but the offset is not much, but the force area is still the same, and the spherical pit of the push plate 32 is always located in the middle of the spherical pit. Therefore, preferably, the spherical pit is set in the center of the top of the push plate 32, and the spherical pit matches the spherical head, so that the force area of the push plate 32 is always at its geometric center.
[0041] During operation, firstly, glue is applied to each layer of the acoustic laminate, and then they are stacked on the pad 13 in order from top to bottom, and pushed with a flat tool to align the long and short sides of each layer with the pad 13, and then the second component 2 is assembled on the upper surface of the first component 1 and tightened with a locking member, so that the first component 1 and the second component 2 become an integrated frame structure, and then a torque meter with a preset torque value is used to cover the ball head fastener 31 and rotate it to extend it downward, and the push plate 32 and the pressing block 4 are pressed downward to slowly press the acoustic laminate until the torque meter reaches the preset value. It is worth noting that this tooling technology can be applied not only to adhesive laminated acoustic laminate materials, but also to adhesive laminated circuit boards and other similar products.
[0042] Furthermore, an elastic member 33 is included. The elastic member 33 is arranged between the push plate 32 and the pressing block 4. The elastic member 33 can adjust the balance of the pressing block 4 so that the pressure on the acoustic laminate material 5 is more uniform.
[0043] In this embodiment, an elastic member 33 is provided between the push plate 32 and the pressure block 4. When subjected to the reaction force of the elastic member 33, since the force-bearing area of the ball head fastener 31 is always at the geometric center of the push plate 32, the thrust at both ends of the push plate 32 is more balanced after self-adjustment.
[0044] Preferably, an opening 331 is provided in the middle of the elastic member 33, so that the force on the elastic member 33 is more uniform, the thickness of the elastic member 33 after being stressed is more consistent, and further the force on the pressing block 4 is more uniform, the pressing block 4 fits better with the surface of the acoustic laminate material 5, and the stress of the acoustic laminate material 5 after being stressed is more evenly distributed. In this embodiment, an opening 331 is provided in the middle of the elastic member 33. After the elastic member 33 is pressed, the thicknesses of the elastic member 33 are equal, so that the pressing block 4 does not tilt, and the pressures of the acoustic laminate material 5 are more symmetrical, facilitating the uniform stress of the acoustic laminate material 5. Specifically, the elastic member 33 is any one of a square frame shape, a circular ring shape, an elliptical ring shape, and an irregular ring shape. As long as the middle of the elastic member 33 is hollowed out, it is the elastic member 33 of the application, and the hollowed-out part in the middle may or may not be the same as the outer shape of the elastic member 33. In this embodiment, the square frame-shaped elastic member 33 and the rectangular elastic member 33 are taken as examples. As Figure 3 and Figure 4 , the stress of the rectangular elastic member 33 is concentrated in the middle, and the stress magnitude is red > yellow > green. The maximum stress of the rectangular elastic member 33 is at the central position, and the stress gradually decreases from the center to the outside. The same is true for the stress curve 6 of the rectangular elastic member 33. At the same time, when the force is uneven, the thickness difference of the rectangular elastic member 33 is relatively large. And referring to Figure 5 and Figure 6 , a rectangular opening 331 is provided in the middle of the square frame-shaped elastic member 33. Although there are some relatively large areas in the square frame-shaped elastic member 33, the areas with the maximum stress are distributed annularly and equally high. From the stress distribution, the distribution diagrams of the stress curves 6 of the two elastic members 33 after being compressed can be inferred. Since there are tolerances in parallelism for the bottom plate 12 and the spacer 13 of the first component 1 due to processing and assembly, the spacer 13 will not actually be completely parallel to the pressing block 4. Because the area with the maximum stress of the rectangular elastic member 33 is at the center, a lever structure with the fulcrum at the center is formed, resulting in a seesaw-like phenomenon and more inclination to one side. The cross-section of the force-bearing area of the elastic member 33 will eventually be trapezoidal. Although the elastic member 33 has elasticity and can finally make the push plate 32 and the pressing block 4 parallel to the acoustic laminate and the spacer 13, since the compression amounts of the elastic members 33 at both ends are too different, the pressure distributions transmitted to the acoustic laminate will also vary greatly. However, the maximum stress of the square frame-shaped elastic member 33 is annular. After being finally pressed, the thicknesses of the force-bearing areas of the elastic member 33 are still equal, and the pressure distributions transmitted to the acoustic laminate will also be very symmetrical. As for the width dimension of the annular shape of the square frame-shaped elastic member 33, it depends on the relevant dimensions of the specific tooling and the required pressure. Referring to Figure 7 and Figure 8 , the stress distribution differences of the circular elastic member 33 and the circular ring-shaped elastic member 33 after being pressurized can also be obtained.
[0045] Further, the second component 2 includes a cover plate 21 and a pressing plate 22. The pressing plate 22 is adapted to be installed on the first component 1. A placement groove 220 is provided on the pressing plate 22. The push plate 32 and the pressing block 4 are adapted to be arranged in the placement groove 220, and the bottom of the pressing block 4 is adapted to penetrate through the bottom of the pressing plate 22 and match with the placement position 130. The cover plate 21 is adapted to cover above the pressing plate 22, and the ball head fastener 31 is adapted to penetrate through the cover plate 21 and connect the push plate 32 in the placement groove 220.
[0046] In this embodiment, the push plate 32 and the pressing block 4 are adapted to be arranged in the placement groove 220, and the bottom of the pressing block 4 is adapted to penetrate through the bottom of the pressing plate 22 and match with the placement position 130. The sizes of the push plate 32 and the pressing block 4 are adapted to the size of the placement groove 220 to minimize the warping of the pressing block 4.
[0047] Specifically, the placement groove 220 includes a first groove and a second groove. The second groove is arranged at the bottom of the first groove. The pressing block 4 includes a first part and a second part. The first part and the push plate 32 are adapted to match with the inner side wall of the first groove. The first part is adapted to abut against the bottom of the first groove. The second part is adapted to penetrate through the second groove and contact the acoustic laminated material 5. The size of the first groove is larger than that of the second groove. It should be noted that in this application, the placement groove 220 is a rectangular groove, which matches with the square-shaped elastic member 33. If the elastic member 33 has other shapes, the placement groove 220 also has corresponding shapes. For example, if the elastic member 33 is circular, the placement groove 220 is also a circular groove, so that the pressing block 4 moves downward along the inner side wall of the placement groove 220.
[0048] Further, the first component 1 includes a pair of vertical plates 11, a bottom plate 12 and a spacer 13. The pair of vertical plates 11 are respectively arranged at the opposite ends of the top of the bottom plate 12, and the spacer 13 is arranged at the center of the top of the bottom plate 12. A placement position 130 is provided at the top of the spacer 13.
[0049] In this embodiment, the pair of vertical plates 11 are respectively arranged at the opposite ends of the top of the bottom plate 12. At this time, the tops of the vertical plates 11 can be ground simultaneously, which can ensure the consistency and parallelism of the heights after the vertical plates 11 and the pressing plate 22 are assembled, so that the second component 2 is horizontally arranged above the first component 1, and the pressing block 4 and the spacer 13 are parallel to each other.
[0050] Specifically, the tops of the pair of vertical plates 11 are relatively flush. The pair of vertical plates 11 can be fixed together and ground, so that the heights of the tops of the processed vertical plates 11 are very consistent, and the parallelism can be made more precise. The pressing plate 22 is adapted to be fixedly connected to the vertical plates 11, so that the bottom of the pressing block 4 is adapted to be relatively parallel to the top of the spacer 13, which is convenient for the pressing block 4 to match with the spacer 13. After the vertical plates 11 and the pressing plate 22 are locked and connected, due to the high parallelism of the pair of vertical plates 11, the second component 2 is horizontally arranged, and the parallelism between the pressing block 4 and the spacer 13 is higher, and the acoustic laminated material 5 is stressed more evenly and linearly.
[0051] It should be noted that the above embodiments can be freely combined as needed. The above are only the preferred embodiments of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims
1. A laminate tooling, characterized in that: include: A first component, wherein a placement position is provided on the first component, and the placement position is suitable for placing an acoustic laminate material; The second component is suitable for being assembled on top of the first component, and the second component is suitable for installing a spherical pair mechanism and a pressing block, the pressing block matches the position of the placement position, and the spherical pair mechanism is suitable for driving the pressing block to move and extrude the acoustic laminate material.
2. A laminating tooling according to claim 1, characterized in that: The spherical pair mechanism includes a ball head fastener and a push plate, one end of the ball head fastener is provided with a spherical head, the push plate is arranged above the pressure block, the top of the push plate is provided with a spherical pit, and the spherical head is suitable for abutting against the spherical pit and driving the push plate and the pressure block to move.
3. A laminating tooling according to claim 2, characterized in that: The spherical pit is arranged at the center of the top of the push plate, and the spherical pit matches the spherical head, so that the force-bearing area of the push plate is always at its geometric center.
4. A laminating tooling according to claim 2, characterized in that: It also includes an elastic member, which is arranged between the push plate and the pressure block. The elastic member can adjust the balance of the pressure block so that the pressure on the acoustic laminate material is more uniform.
5. A laminating tooling according to claim 4, characterized in that: An opening is provided in the middle of the elastic member, so that the pressure block is subjected to a more uniform force, and the bottom of the pressure block is more closely fitted to the upper surface of the acoustic laminate material.
6. A laminating tooling according to claim 5, characterized in that: The elastic member is in any one of a U-shaped, circular, elliptical or irregular shape.
7. A laminating tooling according to claim 2, characterized in that: The second component includes a cover plate and a pressure plate, the pressure plate is suitable for being installed on the first component, a placement groove is provided on the pressure plate, the push plate and the pressure block are suitable for being arranged in the placement groove and the bottom of the pressure block is suitable for passing through the bottom of the pressure plate and matching the placement position, the cover plate is suitable for covering the top of the pressure plate, and the ball head fastener is suitable for passing through the cover plate and connecting the push plate in the placement groove.
8. A laminating tool according to claim 7, characterized in that: The placement groove includes a first groove and a second groove, the second groove is arranged at the bottom of the first groove, the pressing block includes a first part and a second part, the first part and the push plate are suitable for matching with the inner side wall of the first groove, the first part is suitable for abutting against the bottom of the first groove, and the second part is suitable for penetrating the second groove and contacting the acoustic laminate material.
9. A laminating tool according to claim 7, characterized in that: The first component includes a pair of vertical plates, a bottom plate and a cushion block. The pair of vertical plates are respectively arranged at opposite ends of the top of the bottom plate. The cushion block is arranged at the top center of the bottom plate. The placement position is provided on the top of the cushion block.
10. A laminating tool according to claim 9, characterized in that: The tops of a pair of vertical plates are relatively flush, and the pressing plate is suitable for being fixedly connected to the vertical plates, so that the bottom of the pressing block is suitable for being relatively parallel to the top of the cushion block.