Mechanical pressing device for sticking piezoelectric ceramic sheet

Abstract

The application relates to the technical field of piezoelectric ceramics, and discloses a mechanical pressurizing device for pasting piezoelectric ceramic sheets, which comprises a workbench, support plates are symmetrically arranged on the inner wall of the upper portion of the workbench, through grooves are formed in the support plates, a protective shell is fixedly installed on one side of the top end of the workbench, the workbench comprises a material moving mechanism for conveying products; a telescopic air cylinder is fixedly installed at the top end of the protective shell, the telescopic shaft of the telescopic air cylinder penetrates through the top end of the protective shell and is fixedly connected with a lifting plate, L-shaped plates are fixedly connected to the two sides of the lifting plate; the telescopic air cylinder is used as a single power source, on one hand, the purpose of vertically pressing the pressurizing plate is achieved, and on the other hand, the purpose of translating the base to feed and discharge materials is achieved, the cost of the power assembly and the equipment floor space are reduced, the production efficiency is improved, the base is in an open station after being moved out of the protective shell, workers can conveniently take and place workpieces, operation time is reduced, and the equipment has high universality.

Description

Technical Field

[0001] This invention relates to the field of piezoelectric ceramics technology, and more specifically to a mechanical pressure device for attaching piezoelectric ceramic sheets. Background Technology

[0002] A mechanical pressure device for bonding piezoelectric ceramic sheets is a specialized device that uses a mechanical structure to generate stable pressure, precisely and firmly bonding the piezoelectric ceramic sheet to the surface of a target substrate. Its core principle is to apply uniform and controllable pressure to the piezoelectric ceramic sheet using mechanical transmission or auxiliary power such as pneumatics or hydraulics, ensuring consistent adhesive layer thickness and eliminating air bubbles during the bonding process, thereby improving bonding quality and reliability.

[0003] Traditional piezoelectric ceramic sheet bonding and pressurizing devices often suffer from problems such as complex structure, multiple power components, and large equipment footprint. This not only increases production costs but also reduces production efficiency. Moreover, traditional clamping mechanisms have poor versatility and are difficult to adapt to materials of different sizes and shapes to be pressurized. Manually adjusting the clamping position or changing the clamps is time-consuming and labor-intensive, affecting production progress. Furthermore, improper clamping can easily lead to insufficient bonding accuracy of the piezoelectric ceramic sheets. In addition, most devices rely on manual operation in the workpiece removal process, resulting in low efficiency. Summary of the Invention

[0004] In view of the problems of multiple power components, large equipment footprint, poor versatility of clamping mechanisms, and low efficiency of workpiece removal in the prior art, this invention is proposed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mechanical pressure device for attaching piezoelectric ceramic sheets, comprising a worktable, wherein support plates are symmetrically arranged on the upper part of the inner wall of the worktable, the support plates are provided with through grooves, a protective shell is fixedly installed on one side of the top of the worktable, and the worktable includes a material transfer mechanism for conveying products;

[0006] A telescopic cylinder is fixedly installed at the top of the protective shell. The telescopic shaft of the telescopic cylinder passes through the top of the protective shell and is fixedly connected to a lifting plate. L-shaped plates are fixedly connected to both sides of the lifting plate. A rack is fixedly connected to one end of the L-shaped plate. A T-shaped plate is fixedly connected to one side of the rack. The rack and the T-shaped plate are slidably connected to one side of the worktable. A gear is meshed on the other side of the rack. A first rotating shaft is fixedly sleeved inside the gear. Both ends of the first rotating shaft are rotatably connected to one side of the inner wall of the worktable. A first sprocket is symmetrically arranged on the surface of the first rotating shaft. A second sprocket is rotatably connected to the first sprocket through a chain. The same second rotating shaft is fixedly sleeved inside the second sprocket. Both ends of the second rotating shaft are rotatably connected to the other side of the inner wall of the worktable.

[0007] As a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, a connecting block is fixedly connected to the upper surface of the chain, the top end of the connecting block penetrates the inner wall of the through groove and is fixedly connected to a base, and the bottom end of the base contacts the top end of the support plate.

[0008] In a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, the bottom end of the lifting plate is symmetrically provided with connecting plates, and the bottom end of the connecting plates is fixedly connected to the same pressure plate.

[0009] As a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, the base is slidably connected to the upper part of the inner wall of the workbench, the base includes an adaptive clamping mechanism, the base has a plurality of square grooves inside, one end of the square grooves has a cylindrical groove, a moving block is slidably connected to the inner wall of the square grooves, a clamping rod is fixedly connected to the top of the moving block, and a rubber sleeve is fitted on the surface of the clamping rod.

[0010] As a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, wherein: a sliding rod is fixedly connected to one side of the moving block, and the sliding rod is slidably connected to the inner wall of the cylindrical groove.

[0011] As a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, wherein: a spring is sleeved on the outer surface of the slide rod, and the two ends of the spring are respectively connected to one side of the moving block and the inner wall of the square groove.

[0012] As a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, a push hole is provided at the center of the bottom end of the base, an electric push rod is fixedly installed on the inner wall of the worktable, the telescopic shaft of the electric push rod is fixedly connected to a push rod, and the push rod is slidably connected to the inner wall of the push hole.

[0013] As a preferred embodiment of the mechanical pressure device for attaching piezoelectric ceramic sheets according to the present invention, the lifting plate and the pressure plate are provided with a plurality of slots, the width of which is greater than the diameter of the clamping rod.

[0014] In summary, the present invention has at least one of the following beneficial effects:

[0015] 1. This invention uses a telescopic cylinder as a single power source to achieve the purpose of vertically pressing down the pressure plate on one hand, and the purpose of horizontally moving the base to feed and discharge materials on the other hand. This reduces the cost of power components and the space occupied by the equipment, improves production efficiency, and the base is in an open workstation after being removed from the protective shell, which makes it convenient for workers to pick up and put down workpieces, reduces operation time, and makes the equipment highly versatile.

[0016] 2. This invention provides a continuous and adjustable clamping force through a spring, and the rubber sleeve increases the friction force. It will not cause scratches or indentations on the workpiece surface during the clamping process, so it can automatically adapt to materials of different sizes and shapes to be pressurized. There is no need to manually adjust the clamping position or change the fixture, ensuring that the workpiece does not shift, guaranteeing the bonding accuracy of the piezoelectric ceramic sheet, significantly improving the versatility of the equipment, and increasing production efficiency.

[0017] 3. When the base moves out of the protective shell and returns to its original position, the electric push rod is activated. Its telescopic shaft pushes the push rod upward. The push rod slides along the inner wall of the push hole, pushing the workpiece upward and causing the workpiece to be pushed out of the base. This realizes the automatic ejection of the workpiece after pressure, reduces the time for manual removal, and is suitable for assembly line operations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a side cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure from another side view of the present invention;

[0022] Figure 4 This is a top-view enlarged structural diagram of the base in this invention;

[0023] Figure 5 This is a side cross-sectional view of the base in this invention:

[0024] Figure 6 This is a partially enlarged and disassembled structural diagram of the present invention;

[0025] Figure 7 This is a top view of the workbench structure in this invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Workbench; 11. Support plate; 12. Through slot; 2. Protective shell; 3. Telescopic cylinder; 31. Lifting plate; 32. Connecting plate; 33. Pressure plate; 34. Empty slot; 4. Material transfer mechanism; 41. L-shaped plate; 42. Rack; 43. T-shaped plate; 44. Gear; 45. First rotating shaft; 46. First sprocket; 47. Chain; 48. Second sprocket; 49. Second rotating shaft; 410. Connecting block; 5. Base; 51. Pushing hole; 6. Adaptive clamping mechanism; 61. Square slot; 62. Cylindrical slot; 63. Moving block; 64. Clamping rod; 65. Rubber sleeve; 66. Slide rod; 67. Spring; 7. Electric push rod; 71. Push rod. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1-7 The first embodiment of the present invention provides a mechanical pressure device for attaching piezoelectric ceramic sheets, including a workbench 1, a support plate 11 symmetrically arranged on the upper part of the inner wall of the workbench 1, a through groove 12 opened inside the support plate 11, a protective shell 2 fixedly installed on one side of the top of the workbench 1, and the workbench 1 includes a material transfer mechanism 4 for conveying products.

[0030] A telescopic cylinder 3 is fixedly installed at the top of the protective shell 2. The telescopic shaft of the telescopic cylinder 3 passes through the top of the protective shell 2 and is fixedly connected to a lifting plate 31. L-shaped plates 41 are fixedly connected to both sides of the lifting plate 31. A rack 42 is fixedly connected to one end of the L-shaped plate 41. A T-shaped plate 43 is fixedly connected to one side of the rack 42. The rack 42 and the T-shaped plate 43 are slidably connected to one side of the workbench 1. A gear 44 is meshed on the other side of the rack 42. A first rotating shaft 45 is fixedly sleeved inside the gear 44. Both ends of the first rotating shaft 45 are rotatably connected to one side of the inner wall of the workbench 1. A first sprocket 46 is symmetrically arranged on the surface of the first rotating shaft 45. A second sprocket 48 is rotatably connected to the first sprocket 46 through a chain 47. The same second rotating shaft 49 is fixedly sleeved inside the second sprocket 48. Both ends of the second rotating shaft 49 are rotatably connected to the other side of the inner wall of the workbench 1.

[0031] A connecting block 410 is fixedly connected to the upper surface of the chain 47. The top of the connecting block 410 penetrates the inner wall of the through groove 12 and is fixedly connected to the base 5. The bottom of the base 5 is in contact with the top of the support plate 11.

[0032] A connecting plate 32 is symmetrically arranged at the bottom end of the lifting plate 31, and the same pressure plate 33 is fixedly connected to the bottom end of the connecting plate 32.

[0033] During use, after the material to be pressurized is placed on the base 5, the telescopic cylinder 3 is activated, and its telescopic shaft drives the pressure plate 33 to move downward through the lifting plate 31 and the connecting plate 32.

[0034] As the lifting plate 31 moves downward, it drives the rack 42 and T-shaped plate 43 downward through the L-shaped plate 41. The T-shaped plate 43 is used to limit the movement trajectory of the rack 42 to prevent it from deviating or shaking during the movement, and to ensure the meshing accuracy between the gear 44 and the rack 42. The rack 42 drives the first rotating shaft 45 to rotate through the gear 44. The first sprocket 46 rotates synchronously with the first rotating shaft 45. The first sprocket 46 drives the second sprocket 48 through the chain 47, causing the second rotating shaft 49 to rotate, forming a horizontal transmission.

[0035] During the operation of the chain 47, the connecting block 410 moves synchronously. The connecting block 410 drives the base 5 to move below the pressure plate 33 on the surface of the support plate 11. When the top of the rack 42 moves to the gear 44, the base 5 moves into the protective shell 2 and is directly below the pressure plate 33. Then, the telescopic cylinder 3 continues to drive the pressure plate 33 to move downward through the lifting plate 31 and the connecting plate 32 to pressurize the material to be pressurized inside the base 5.

[0036] During the pressurization process, the telescopic cylinder 3 continues to drive the pressure plate 33 to move downward through the lifting plate 31 and the connecting plate 32. Since the top of the rack 42 has a toothless flat shape, the rack 42 will not cause the gear 44 to rotate during the downward movement of the pressure plate 33, thus keeping the position of the base 5 fixed.

[0037] After pressurization is completed, the telescopic cylinder 3 drives the pressure plate 33 to move upward away from the interior of the base 5 through the lifting plate 31 and the connecting plate 32. At the same time, the lifting plate 31 drives the rack 42 and the T-shaped plate 43 to move upward through the L-shaped plate 41, thereby causing the chain 47 to rotate in the opposite direction, so that the base 5 is moved out of the protective shell 2, so that the staff can take out the workpiece that has been pressurized, and facilitate the base 5 to enter the next round of pressurization and bonding process.

[0038] This design uses the telescopic cylinder 3 as a single power source to achieve the purpose of vertically pressing down the pressure plate 33 on the one hand, and to achieve the purpose of horizontally moving the base 5 for feeding and discharging materials on the other hand. This reduces the cost of power components and the space occupied by the equipment, improves production efficiency, and the base 5 is in an open workstation after being removed from the protective shell 2, which makes it convenient for workers to pick up and put down workpieces, reduces operation time, and makes the equipment highly versatile.

[0039] Reference Figure 1-7This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: the base 5 is slidably connected to the upper part of the inner wall of the workbench 1, the base 5 includes an adaptive clamping mechanism 6, the base 5 has a plurality of square grooves 61 inside, one end of the square grooves 61 has a cylindrical groove 62, the inner wall of the square grooves 61 is slidably connected to a moving block 63, the top of the moving block 63 is fixedly connected to a clamping rod 64, and the surface of the clamping rod 64 is covered with a rubber sleeve 65.

[0040] A sliding rod 66 is fixedly connected to one side of the movable block 63, and the sliding rod 66 is slidably connected to the inner wall of the cylindrical groove 62;

[0041] A spring 67 is fitted on the outer surface of the slide bar 66, and the two ends of the spring 67 are connected to one side of the moving block 63 and the inner wall of the square groove 61, respectively.

[0042] During use, when the material to be pressurized is placed on the base 5, the edge of the material will contact the clamping rod 64 and apply lateral pressure. After the clamping rod 64 is subjected to force, it will drive the moving block 63 at its bottom end to slide in the square groove 61. At the same time, the sliding rod 66 on one side of the moving block 63 slides on the inner wall of the cylindrical groove 62.

[0043] During the sliding process of the slide bar 66, the spring 67 sleeved on its outer surface is compressed. The elastic restoring force of the spring 67 is transmitted to the clamping rod 64 through the moving block 63, so that the clamping rod 64 tightly abuts against the edge of the workpiece, and the rubber sleeve 65 increases the friction to prevent the workpiece from sliding.

[0044] This design provides a continuous and adjustable clamping force through spring 67, while rubber sleeve 65 increases friction and prevents scratches or indentations on the workpiece surface during clamping. It can automatically adapt to materials of different sizes and shapes to be pressurized without the need for manual adjustment of the clamping position or replacement of the fixture, ensuring that the workpiece does not shift, guaranteeing the bonding accuracy of the piezoelectric ceramic sheet, significantly improving the versatility of the equipment, and increasing production efficiency.

[0045] Reference Figure 1-7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a push hole 51 is provided at the center of the bottom end of the base 5, an electric push rod 7 is fixedly installed on the inner wall of the workbench 1, the telescopic shaft of the electric push rod 7 is fixedly connected to the push rod 71, and the push rod 71 is slidably connected to the inner wall of the push hole 51.

[0046] Both the lifting plate 31 and the pressure plate 33 have several slots 34 inside, and the width of the slots 34 is greater than the diameter of the clamping rod 64.

[0047] During use, when the pressure plate 33 moves downward, its internal slot 34 aligns with the clamping rod 64. Since the width of the slot 34 is greater than the diameter of the clamping rod 64, the pressure plate 33 will not collide with the clamping rod 64 during the downward pressing process, thus avoiding damage to the fixture or workpiece.

[0048] When the base 5 moves out of the protective shell 2 and returns to its original position, the electric push rod 7 is activated. Its telescopic shaft pushes the push rod 71 to move upward. The push rod 71 slides along the inner wall of the push hole 51, pushing the workpiece upward and causing the workpiece to be pushed out of the base 5. This realizes the automatic ejection of the workpiece after pressure, reduces the time for manual removal, and is suitable for assembly line operations.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A mechanical pressure device for attaching piezoelectric ceramic sheets, comprising a worktable (1), characterized in that: The upper part of the inner wall of the workbench (1) is symmetrically provided with support plates (11), and the support plates (11) are provided with through grooves (12). A protective shell (2) is fixedly installed on one side of the top of the workbench (1). The workbench (1) includes a material transfer mechanism (4) for conveying products. A telescopic cylinder (3) is fixedly installed at the top of the protective shell (2). The telescopic shaft of the telescopic cylinder (3) passes through the top of the protective shell (2) and is fixedly connected to a lifting plate (31). L-shaped plates (41) are fixedly connected to both sides of the lifting plate (31). A rack (42) is fixedly connected to one end of the L-shaped plate (41). A T-shaped plate (43) is fixedly connected to one side of the rack (42). The rack (42) and the T-shaped plate (43) are slidably connected to one side of the workbench (1). A meshing device is installed on the other side of the rack (42). Gear (44), a first rotating shaft (45) is fixedly sleeved inside the gear (44), both ends of the first rotating shaft (45) are rotatably connected to one side of the inner wall of the workbench (1), a first sprocket (46) is symmetrically arranged on the surface of the first rotating shaft (45), the first sprocket (46) is rotatably connected to a second sprocket (48) through a chain (47), the same second rotating shaft (49) is fixedly sleeved inside the second sprocket (48), both ends of the second rotating shaft (49) are rotatably connected to the other side of the inner wall of the workbench (1); A connecting block (410) is fixedly connected to the upper surface of the chain (47). The top end of the connecting block (410) penetrates the inner wall of the through groove (12) and is fixedly connected to a base (5). The bottom end of the base (5) is in contact with the top end of the support plate (11). The bottom end of the lifting plate (31) is symmetrically provided with connecting plates (32), and the bottom end of the connecting plates (32) is fixedly connected with the same pressure plate (33).

2. The mechanical pressure device for attaching piezoelectric ceramic sheets according to claim 1, characterized in that, The base (5) is slidably connected to the upper part of the inner wall of the workbench (1). The base (5) includes an adaptive clamping mechanism (6). The base (5) has several square grooves (61) inside. One end of the square groove (61) has a cylindrical groove (62). The inner wall of the square groove (61) is slidably connected to a moving block (63). The top of the moving block (63) is fixedly connected to a clamping rod (64). The surface of the clamping rod (64) is covered with a rubber sleeve (65).

3. The mechanical pressure device for attaching piezoelectric ceramic sheets according to claim 2, characterized in that, A slide rod (66) is fixedly connected to one side of the movable block (63), and the slide rod (66) is slidably connected to the inner wall of the cylindrical groove (62).

4. The mechanical pressure device for attaching piezoelectric ceramic sheets according to claim 3, characterized in that, A spring (67) is fitted on the outer surface of the slide bar (66), and the two ends of the spring (67) are connected to one side of the moving block (63) and the inner wall of the square groove (61), respectively.

5. A mechanical pressure device for attaching piezoelectric ceramic sheets according to claim 4, characterized in that, The base (5) has a push hole (51) at the center of its bottom end. An electric push rod (7) is fixedly installed on the inner wall of the workbench (1). The electric push rod (7) is fixedly connected to the telescopic shaft of the electric push rod (7) with a push rod (71). The push rod (71) is slidably connected to the inner wall of the push hole (51).

6. A mechanical pressure device for attaching piezoelectric ceramic sheets according to claim 5, characterized in that, The lifting plate (31) and the pressure plate (33) are both provided with a number of slots (34), and the width of the slots (34) is greater than the diameter of the clamping rod (64).

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