High-precision pressure maintaining device

Abstract

The high-precision pressure maintaining device comprises a base and a covering and pressing part, a sliding shell is arranged on the base in a sliding mode, a positioning rod is arranged on the sliding shell, and a contact end is fixedly arranged on the positioning rod; a supporting plate is fixedly arranged on the sliding shell, a blocking plate is arranged on the supporting plate in a sliding mode, the blocking plate is matched with a sliding groove reserved in the base, the sliding groove is used for providing a sliding space for the sliding shell, a first inclined face is arranged on the blocking plate, and the blocking plate abuts against the base through the first inclined face. When the positioning rod does not exceed the sliding groove, the workpiece is fixed, the sliding groove is blocked by the blocking plate, the workpiece can be placed at the position above the sliding groove, and the phenomenon of deformation or damage caused by lack of support at the position in the pressure maintaining process is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of laminating equipment, and in particular to a high-precision pressure-maintaining device. Background Art

[0002] Pressure-holding devices are widely used in industrial manufacturing, playing a key role in scenarios with high requirements for bonding accuracy and adhesive strength. Through the coordinated control of "pressure + temperature + time", they solve the problems of bonding strength, sealing, and precision of different materials and structures during the bonding process. They are a key link in ensuring product reliability in high-end manufacturing. In the full-bonding industry such as automotive and wearables, such as in the full bonding of automotive displays with backlight modules and touch screens, uniform pressure is applied through the pressure-holding device to ensure that the OCA optical adhesive or liquid adhesive is fully cured, eliminating bubbles and improving bonding strength.

[0003] In the pressure-holding process that does not rely on traditional rigid molds to provide pressure or fix the workpiece, when there are differences in workpiece sizes, an adjustable fixing device is usually set to position and fix the workpiece. If the workpiece is positioned and fixed by telescopic guide rods, in order to adapt to the different sizes of workpieces, it is necessary to set excessively long guide rods, which will take up a lot of space.

[0004] At the same time, if a slide guide is used, a slide groove needs to be set on the surface of the workbench, which will result in the platform for placing the workpiece being incomplete. When the adjustable fixing device is used to fix the workpiece, due to the different sizes of the workpieces, the position of the workpiece will be above the guide groove of the fixing device. As a result, during the pressure holding process, the workpiece will be located in the guide position area, which is prone to deformation or damage due to the pressure holding intensity. For this reason, we provide a high-precision pressure holding device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-precision pressure-maintaining device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A high-precision pressure-maintaining device comprises a base and a pressing component, wherein a sliding shell is slidably provided on the base, a positioning rod is provided on the sliding shell, and a contact end is fixedly provided on the positioning rod;

[0008] A support plate is fixedly provided on the sliding shell, a blocking plate is slidably provided on the support plate, the blocking plate is adapted to a sliding groove reserved on the base, the sliding groove is used to provide a sliding space for the sliding shell, and a first inclined surface is provided on the blocking plate, and abuts against the base through the first inclined surface;

[0009] It also includes a limiting member, which is used to enable the sealing plate to block the sliding groove when the positioning rod slides to fix the workpiece, and to disengage the sealing plate from the sliding groove when the positioning rod slides to a position where the contact end passes over the sliding groove.

[0010] Preferably, the limiting member includes a fixed shell fixedly arranged on the base, a locking rod is slidably arranged on the fixed shell, and the locking rod abuts against the blocking plate.

[0011] Preferably, a guide rod is fixedly provided on the base, a sliding frame is slidably provided on the guide rod, an abutment rod is fixedly provided on the sliding frame, the locking rod is provided with a third inclined surface, and the abutment rod abuts and cooperates with the third inclined surface.

[0012] Preferably, a second spring is provided between the locking rod and the fixed shell, and two ends of the second spring are fixedly connected to the locking rod and the fixed shell respectively.

[0013] Preferably, a plurality of first springs are provided between the blocking plate and the support rod, and two ends of the first springs are fixedly connected to the blocking plate and the support rod respectively.

[0014] Preferably, the locking rod is provided with a second inclined surface for resetting the blocking plate.

[0015] Preferably, a first pulley and a second pulley are rotatably provided on the sliding shell, a first protrusion is fixedly provided on the first pulley, a first spiral groove is provided on the positioning rod, and the first protrusion is slidably provided in the first spiral groove.

[0016] Preferably, a sliding tube is fixedly provided on the sliding frame, a second spiral groove is provided on the sliding tube, a second protrusion is fixedly provided on the second pulley, and the second protrusion is slidably provided in the second spiral groove;

[0017] A belt is provided between the first pulley and the second pulley for transmission.

[0018] Preferably, the first spiral groove and the second spiral groove have the same number of turns, and the pitch of the first spiral groove is greater than that of the second spiral groove.

[0019] Preferably, a reciprocating screw is rotatably provided on the base, a motor is fixedly provided on the base, and an output shaft of the motor is fixedly connected to the reciprocating screw.

[0020] In the above technical solution, the high-precision pressure-maintaining device provided by the present invention has the following beneficial effects:

[0021] When the positioning rod slides to position and fix the workpiece, if the workpiece is large, the workpiece is fixed when the positioning rod does not exceed the sliding groove, and the sealing plate blocks the sliding groove, so that the workpiece can be placed above the sliding groove to avoid deformation or damage due to lack of support at this position during the pressure holding process. If the workpiece is small, when the positioning rod passes the sliding groove, the sealing plate disengages from the sliding groove, and the sliding shell slides on the sliding groove, while driving the positioning rod to slide, so as to complete the fixation of the smaller workpiece. When maintaining pressure on workpieces within a range of sizes, the phenomenon of indentation or deformation caused by lack of support and pressure on the bottom of the workpiece can be avoided, thereby greatly improving the pressure holding and fitting quality of the workpiece.

[0022] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0023] This application document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0026] Figure 2 A front cross-section and a partial enlarged view of the overall structure provided by an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the structure of the sliding housing and the guide rod provided in an embodiment of the present invention;

[0028] Figure 4 A schematic diagram of the internal structure of a sliding housing provided by an embodiment of the present invention;

[0029] Figure 5 A schematic diagram of the structure of the sliding frame and the locking rod provided in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the structure of the first pulley and the second pulley provided in an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the abutment state between the locking rod and the blocking plate provided in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Base; 11. Covering component; 12. Magnetic seat; 13. Slide rail; 2. Sliding shell; 21. Positioning rod; 22. Contact end; 23. First spiral groove; 24. Support plate; 25. Sealing plate; 26. First inclined surface; 27. First spring; 3. Guide rod; 31. Sliding frame; 32. Sliding tube; 33. Second spiral groove; 34. Abutment rod; 4. Fixed shell; 41. Locking rod; 42. Second inclined surface; 43. Third inclined surface; 44. Second spring; 5. First pulley; 51. First protrusion; 52. Second pulley; 53. Second protrusion; 54. Belt; 6. Reciprocating screw; 61. Motor. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0035] Please refer to 1-7, a high-precision pressure-maintaining device includes a base 1 and a covering component 11, a sliding shell 2 is slidingly provided on the base 1, a positioning rod 21 is provided on the sliding shell 2, and a contact end 22 is fixedly provided on the positioning rod 21; a support plate 24 is fixedly provided on the sliding shell 2, and a blocking plate 25 is slidingly provided on the support plate 24, and the blocking plate 25 is adapted to the sliding groove reserved on the base 1, and the sliding groove is used to provide a sliding space for the sliding shell 2, and a first inclined surface 26 is provided on the blocking plate 25, and abuts against the base 1 through the first inclined surface 26; it also includes a limiting member, which is used to block the sliding groove of the blocking plate 25 when the positioning rod 21 slides to fix the workpiece, and after the positioning rod 21 slides to the maximum value, the blocking plate 25 is disengaged from the sliding groove. In the process of positioning and fixing the workpiece, the positioning rod 21 slides first, and pushes the workpiece during the sliding process to adjust the position of the workpiece. The position of the workpiece is adjusted. During the sliding process of the positioning rod 21, the sliding shell 2 does not move, and the blocking plate 25 blocks the sliding groove on the base 1. In the case of a large workpiece, the adjustment and fixation of the workpiece position is completed only by sliding the positioning rod 21. At this time, the blocking plate 25 blocks the sliding groove to prevent the workpiece from being located above the sliding groove, resulting in a lack of support for the workpiece at the position of the sliding groove during the pressure holding process, resulting in deformation or damage to the workpiece at this position. If the workpiece is small, when the positioning rod 21 slides to the position where the contact end 22 exceeds the sliding groove, it can be determined that the workpiece will not be located above the sliding groove. At this time, the limit member loses the limit on the blocking plate 25, and the blocking plate 25 moves down and disengages from the sliding groove, so that the sliding shell 2 can slide on the sliding groove, thereby driving the positioning rod 21 to continue sliding, thereby completing the process of positioning and fixing the smaller workpiece.

[0036] Specifically, the limit member includes a fixed shell 4 fixed on the base 1, and a locking rod 41 is slidably provided on the fixed shell 4, and the locking rod 41 abuts against the blocking plate 25. When a larger workpiece is fixed, the workpiece is located above the sliding groove. At this time, the contact end 22 positions and fixes the workpiece through the sliding of the positioning rod 21. At this time, the locking rod 41 abuts against the blocking plate 25, so that the blocking plate 25 supports the position of the workpiece in the sliding groove, thereby avoiding deformation or damage to the position of the bottom of the workpiece corresponding to the sliding groove under the action of pressure when the workpiece is maintained under pressure.

[0037] In an embodiment further provided by the present invention, a guide rod 3 is fixedly provided on the base 1, a sliding frame 31 is slidably provided on the guide rod 3, an abutment rod 34 is fixedly provided on the sliding frame 31, and a locking rod 41 is provided with a third inclined surface 43, and the abutment rod 34 abuts and cooperates with the third inclined surface 43. When positioning and fixing a smaller workpiece, the positioning rod 21 slides with the contact end 22. When the contact end 22 passes the sliding groove position, the guide rod 3 pushes the locking rod 41 to slide through the third inclined surface 43, so that the locking rod 41 is disengaged from the blocking plate 25. Subsequently, the sliding shell 2 can be made to slide and continue to slide with the positioning rod 21 to complete the positioning and fixing of the smaller workpiece.

[0038] Furthermore, a second spring 44 is provided between the locking rod 41 and the fixed shell 4, and the two ends of the second spring 44 are fixedly connected to the locking rod 41 and the fixed shell 4 respectively. When a larger workpiece is fixed, the workpiece is located above the sliding groove. At this time, under the action of the second spring 44, the locking rod 41 abuts against the blocking plate 25, so that the blocking plate 25 blocks the sliding groove, so that the blocking plate 25 supports the position of the workpiece above the sliding groove, preventing the workpiece from being deformed or damaged at the position above the sliding groove during the pressure holding process. When positioning and fixing a smaller workpiece, after the positioning rod 21 slides to the position where the contact end 22 passes the sliding groove, the guide rod 3 pushes the locking rod 41 to slide through the third inclined surface 43, so that the locking rod 41 disengages from the blocking plate 25 and compresses the second spring 44.

[0039] When the workpiece is pressed, the sliding shell 22 is moved back to the original position, and the first spring 27 is pressed against the locking rod 41, so that the locking rod 41 is pressed against the locking rod 41, and the locking rod 41 is pressed against the locking rod 41.

[0040] In an embodiment further provided by the present invention, the locking rod 41 is provided with a second inclined surface 42 for resetting the blocking plate 25. By providing the second inclined surface 42 on the locking rod 41, the blocking plate 25 slides with the sliding shell 2 and disengages from the locking rod 41. When the blocking plate 25 is reset, the second inclined surface 42 squeezes the locking rod 41 to prevent the blocking plate 25 from disengaging from the sliding shell 2 during the resetting process. Under the action of the second spring 44, the locking rod 41 extends, which restricts the resetting of the blocking plate 25 and causes the blocking plate 25 to be unable to be reset. After the blocking plate 25 slides to the sliding groove position, the blocking plate 25 moves up under the action of the first spring 27 to block the sliding groove. At this time, under the action of the second spring 44, the locking rod 41 extends and abuts against the blocking plate 25 to limit the blocking plate 25.

[0041] In the embodiment provided by the present invention, a first pulley 5 and a second pulley 52 are rotatably provided on the sliding shell 2, a first protrusion 51 is fixedly provided on the first pulley 5, a first spiral groove 23 is provided on the positioning rod 21, and the first protrusion 51 is slidably provided in the first spiral groove 23; a sliding tube 32 is fixedly provided on the sliding frame 31, a second spiral groove 33 is provided on the sliding tube 32, a second protrusion 53 is fixedly provided on the second pulley 52, and the second protrusion 53 is slidably provided in the second spiral groove 33; a belt 54 is provided for transmission between the first pulley 5 and the second pulley 52, and when the workpiece is positioned and fixed, the sliding tube 32 slides through the second spiral groove 33 and The second protrusion 53 cooperates to rotate the second pulley 52, and rotates the first pulley 5 through the belt 54. At the same time, the first protrusion 51 cooperates with the first spiral groove 23 to make the positioning rod 21 slide, so as to position and fix the workpiece. When the positioning rod 21 passes the sliding groove position, the positioning rod 21 slides to the maximum value relative to the sliding shell 2, and the tail of the positioning rod 21 abuts the sliding shell 2, and the sliding tube 32 abuts the sliding shell 2. At this time, the abutting rod 34 slides with the sliding tube 32, and the locking rod 41 slides and disengages from the blocking plate 25 through the third inclined surface 43. Subsequently, the sliding tube 32 continues to slide, sliding with the sliding shell 2, and continues to complete the positioning and fixation of the workpiece.

[0042] Specifically, the first spiral groove 23 and the second spiral groove 33 have the same number of turns, and the pitch of the first spiral groove 23 is greater than that of the second spiral groove 33. When the sliding tube 32 slides, the second pulley 52 and the first pulley 5 rotate synchronously through the cooperation between the second spiral groove 33 and the second protrusion 53. The positioning rod 21 slides through the cooperation between the first protrusion 51 and the first spiral groove 23. Since the pitch of the first spiral groove 23 is greater than that of the second spiral groove 33, when the sliding tube 32 slides, the sliding distance of the positioning rod 21 is greater than the sliding distance of the sliding tube 32, so that the positioning rod 21 can quickly position and fix the workpiece.

[0043] In the solution further provided by the present invention, a reciprocating screw 6 is rotatably provided on the base 1, and a motor 61 is fixedly provided on the base 1. The output shaft of the motor 61 is fixedly connected to the reciprocating screw 6. The motor 61 mentioned in the present invention is a dual-axis motor 61, which can simultaneously drive the reciprocating screws 6 on both sides to rotate, and is positioned and fixed relative to the workpiece.

[0044] In the present invention, the positioning mentioned is that the positioning rods 21 on both sides of the workpiece push the workpiece through the contact end 22, and push the workpiece to the middle position of the base 1. The present invention can achieve positioning and fixation of the other two sides of the workpiece by arranging the same components such as the positioning rods 21 and the sliding shell 2 in the present invention on the other two sides of the workpiece, so as to achieve more precise positioning of the workpiece.

[0045] A slide rail 13 is provided on the base 1, and the covering component 11 is slidably set on the base 1 through the slide rail 13, and the sliding covering component 11 is fixed by the magnetic seat 12. A magnet is fixedly provided on the magnetic seat 12, and the magnet fits with the covering component 11, and then the magnetic seat 12 is fixed to the base 1 by a hexagonal bolt, which can effectively fix the covering component 11, and the magnet on the magnetic seat 12 can ensure that the magnetic seat 12 fits with the covering component 11, thereby ensuring the stability of fixing the covering component 11.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A high-precision pressure-maintaining device, comprising a base (1) and a pressure-covering component (11), characterized in that: A sliding shell (2) is slidably provided on the base (1), a positioning rod (21) is provided on the sliding shell (2), and a contact end (22) is fixedly provided on the positioning rod (21); A support plate (24) is fixedly provided on the sliding shell (2), a blocking plate (25) is slidably provided on the support plate (24), the blocking plate (25) is adapted to a sliding groove reserved on the base (1), the sliding groove is used to provide a sliding space for the sliding shell (2), a first inclined surface (26) is provided on the blocking plate (25), and the blocking plate abuts against the base (1) through the first inclined surface (26); It also includes a limiting member, which is used to enable the blocking plate (25) to block the sliding groove when the positioning rod (21) slides to fix the workpiece, and to disengage the blocking plate (25) from the sliding groove when the positioning rod (21) slides to a position where the contact end (22) passes over the sliding groove.

2. A high-precision pressure-maintaining device according to claim 1, characterized in that: The position-limiting member comprises a fixed shell (4) fixedly arranged on the base (1); a locking rod (41) is slidably arranged on the fixed shell (4); and the locking rod (41) abuts against the blocking plate (25).

3. A high-precision pressure-maintaining device according to claim 2, characterized in that: A guide rod (3) is fixedly provided on the base (1), a sliding frame (31) is slidably provided on the guide rod (3), an abutting rod (34) is fixedly provided on the sliding frame (31), the locking rod (41) is provided with a third inclined surface (43), and the abutting rod (34) is in abutment with the third inclined surface (43).

4. A high-precision pressure-maintaining device according to claim 2, characterized in that: A second spring (44) is provided between the locking rod (41) and the fixed shell (4), and two ends of the second spring (44) are fixedly connected to the locking rod (41) and the fixed shell (4), respectively.

5. The high-precision pressure-maintaining device according to claim 1, characterized in that: A plurality of first springs (27) are provided between the blocking plate (25) and the support rod, and two ends of the first springs (27) are fixedly connected to the blocking plate (25) and the support rod, respectively.

6. The high-precision pressure-maintaining device according to claim 1, characterized in that: The locking rod (41) is provided with a second inclined surface (42) for resetting the blocking plate (25).

7. The high-precision pressure-maintaining device according to claim 3, characterized in that: A first pulley (5) and a second pulley (52) are rotatably provided on the sliding shell (2); a first protrusion (51) is fixedly provided on the first pulley (5); a first spiral groove (23) is provided on the positioning rod (21); and the first protrusion (51) is slidably provided in the first spiral groove (23).

8. The high-precision pressure-maintaining device according to claim 7, characterized in that: A sliding tube (32) is fixedly provided on the sliding frame (31), a second spiral groove (33) is provided on the sliding tube (32), a second protrusion (53) is fixedly provided on the second pulley (52), and the second protrusion (53) is slidably provided in the second spiral groove (33); A belt (54) is provided for transmission between the first pulley (5) and the second pulley (52).

9. The high-precision pressure-maintaining device according to claim 7, characterized in that: The first spiral groove (23) and the second spiral groove (33) have the same number of turns, and the pitch of the first spiral groove (23) is greater than that of the second spiral groove (33).

10. The high-precision pressure-maintaining device according to claim 8, characterized in that: A reciprocating screw (6) is rotatably provided on the base (1), a motor (61) is fixedly provided on the base (1), and an output shaft of the motor (61) is fixedly connected to the reciprocating screw (6).

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