Flatness adjusting mechanism and hot press welding head device

Abstract

The utility model discloses a kind of flatness adjusting mechanism, including supporting seat, leveling plate and drive mechanism;The supporting seat includes two side plates oppositely arranged, and the two side plates are oppositely arranged with arc-shaped guide slot respectively;The leveling plate includes plate main body and the guide column being arranged at its two sides, and the plate main body is arranged between the two side plates, and the guide column is slidably connected in the guide slot;The drive mechanism includes adjusting piece and the transmission structure connected with the adjusting piece and leveling plate, and the adjusting piece is provided with telescopic structure, and the telescopic structure telescopic motion is driven the guide column in the guide slot movement by transmission structure, drives the leveling plate swing along guide slot, to adjust the inclination angle of the leveling plate relative to the supporting seat.The utility model realizes that leveling plate is accurately inclined angle adjustment according to actual situation, so that user can easily realize the fine adjustment of flatness.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor technology, and in particular to a flatness adjustment mechanism. Background Technology

[0002] During IC packaging, the thermoforming head of the internal lead bonding machine must have high-precision flatness to ensure uniform bonding of IC leads. Insufficient flatness may cause lead soldering defects, misalignment, or damage, thereby affecting the package yield.

[0003] The current flatness adjustment mechanism uses a rotating micrometer head to finely adjust the height of the thermoforming welding head. The reset operation relies on the reverse tension of a spring, but the spring's force may decay or fail, potentially causing the reset function to malfunction. Furthermore, space constraints prevent the installation of springs with greater spring force. The reset process requires manual intervention, which reduces the automation level of the equipment and impacts production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a flatness adjustment mechanism to achieve stable and reliable adjustment of the flatness of the hot-press welding head.

[0005] To achieve the above objectives, this utility model provides a flatness adjustment mechanism, comprising:

[0006] The support base includes two side plates arranged opposite each other, and each of the two side plates is provided with an arc-shaped guide groove.

[0007] The adjusting plate includes a plate body and guide posts disposed on both sides thereof. The plate body is disposed between the two side plates, and the guide posts are slidably connected in the guide groove.

[0008] The driving mechanism includes an adjusting member and a transmission structure connected to the adjusting member and the adjusting plate. The adjusting member is provided with a telescopic structure. The telescopic structure moves in a telescopic motion and drives the guide column to move in the guide groove through the transmission structure, thereby causing the adjusting plate to swing along the guide groove to adjust the tilt angle of the adjusting plate relative to the support.

[0009] As a further improvement of this utility model, the transmission structure includes a connecting bracket; the connecting bracket includes a first connecting portion connected to the adjusting plate and a second connecting portion that extends from the first connecting portion and is configured to cooperate with the adjusting member.

[0010] As a further improvement of this utility model, the adjusting member has a fixing hole in the radial direction at one end near the connecting bracket, and the transmission structure also includes a connecting rod that is fixed in the fixing hole, the connecting rod protruding out of the fixing hole and slidingly engaging with the second connecting part.

[0011] As a further improvement of this utility model, the second connecting part includes a positioning groove into which the adjusting member extends, connecting arms located on both sides of the positioning groove, and floating grooves correspondingly disposed on the two connecting arms, wherein the connecting rod is slidably embedded in the floating groove.

[0012] As a further improvement of this utility model, the floating groove extends in a straight line and its extension direction is perpendicular to the adjusting plate.

[0013] As a further improvement of this utility model, the adjusting member is a straight-in micrometer head, which extends in a direction parallel to the side plate.

[0014] As a further improvement of this utility model, the adjusting component includes a micrometer rod, a micrometer cylinder and a fine adjustment knob connected in sequence, and the fixing hole is located at the end of the micrometer rod.

[0015] As a further improvement of this utility model, at least two guide posts are provided at intervals on each side of the plate body.

[0016] As a further improvement of this utility model, the flatness adjustment mechanism also includes a fixed bracket and a locking member fixedly connected to the support base. The adjusting member is locked and fixed on the fixed bracket. The fixed bracket is provided with a positioning hole and a locking hole. The positioning hole is coaxially arranged with the adjusting member, and the adjusting member can pass through the positioning hole. The locking member can pass through the locking hole to lock the adjusting member in the positioning hole.

[0017] To achieve the above objectives, the present invention also provides a hot-press welding head device, including a welding head assembly and a flatness adjustment mechanism as described in any of the above claims, wherein the adjustment plate has a working plane, and the welding head assembly is connected to the working plane of the adjustment plate.

[0018] The beneficial effects of this utility model are: the adjusting member and the adjusting plate are connected by a transmission structure. The telescopic movement of the adjusting member drives the adjusting plate to move through the transmission structure, and at the same time drives the guide column to move in the guide groove. The guide groove is set to be arc-shaped so that the tilt angle of the adjusting plate relative to the support seat changes during the movement, thereby adjusting the flatness of the hot-press welding head set on the adjusting plate to meet the flatness requirements of different ICs. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the flatness adjustment mechanism in the embodiment of this utility model;

[0020] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the flatness adjustment mechanism from another angle;

[0021] Figure 3 yes Figure 1 Exploded view of the flatness adjustment mechanism;

[0022] Figure 4 yes Figure 1 A schematic diagram of the connecting bracket of the flatness adjustment mechanism. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Please refer to the accompanying drawings for further details. Figures 1 to 4 The figure shown is a preferred embodiment of the present invention.

[0024] It should be understood that, unless otherwise expressly specified and limited, in this application, the terms "upper," "lower," "front," "rear," "left," "right," etc., indicate the orientation or positional relationship based on the illustrations and are only for the convenience of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "set", "connect", "connect", "fixed" and other such terms should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part.

[0026] It should be noted that in the following embodiments and accompanying drawings, components unrelated to the present invention have been omitted and not shown; and for ease of understanding, the size ratios between the components are exaggerated and differ from the actual product.

[0027] Reference Figure 1 and Figure 2 A flatness adjustment mechanism 100 provided in one embodiment of the present utility model includes a support base 1, an adjustment plate 2 and a drive mechanism 3.

[0028] The support base 1 includes two side plates 11 arranged opposite to each other, and each side plate 11 has an arc-shaped guide groove 12 arranged opposite to each other.

[0029] The adjusting plate 2 includes a plate body 21 and guide posts 22 on both sides of it. The plate body 21 is located between two side plates 11, and the guide posts 22 are slidably connected in the guide groove 12.

[0030] One end of the guide post 22 is fixedly connected to the plate body 21, while the other end extends into the guide groove 12 and slides against the inner wall of the guide groove 12. By controlling the adjusting plate 2 to move smoothly along the arc trajectory of the guide groove 12, the relative position between the adjusting plate 2 and the support seat 1 can be changed.

[0031] The sliding fit between the guide post 22 and the guide groove 12 also has a certain guiding and limiting function, ensuring that the adjusting plate 2 will not deviate from the predetermined trajectory during the movement. This not only ensures the stability of the movement of the adjusting plate 2, but also effectively avoids the offset or shaking of the adjusting plate 2 during the movement. After the hot-press welding head is fixed to the adjusting plate 2, the accuracy and reliability of the flatness adjustment mechanism 100 for the hot-press welding head flatness adjustment can be further improved.

[0032] The drive mechanism 3 includes an adjustment component 4 and a transmission structure 5 connected to the adjustment component 4 and the adjustment plate 2. The adjustment component 4 is provided with a telescopic structure 42, which performs telescopic movement and drives the guide column 22 to move in the guide groove 12 through the transmission structure 5, thereby driving the adjustment plate 2 to swing along the guide groove 12 to adjust the tilt angle of the adjustment plate 2 relative to the support seat 1.

[0033] The drive mechanism 3 is connected to the adjusting plate 2 and provides the power for the adjustment plate 2 to move. The adjusting member 4 is connected to the transmission structure 5. When the adjusting member 4 moves in a telescopic motion, the transmission structure 5 transmits power to ensure that the telescopic motion of the adjusting member 4 can be smoothly and accurately converted into the swinging of the adjusting plate 2 along the guide groove 12.

[0034] In specific applications of hot-press welding, the support base 1 can be fixedly installed on the corresponding equipment, serving as the supporting foundation for the entire flatness adjustment mechanism 100. The hot-press welding head is fixed on the adjusting plate 2, which is movably installed on the support base 1. Under the action of the drive mechanism 3, it can swing along the guide groove 12 to adjust the tilt angle of the adjusting plate 2 relative to the support base 1.

[0035] In actual operation, the operator can control the extension and retraction of the adjusting component 4. As the adjusting component 4 extends and retracts, the transmission structure 5 converts this linear motion into the swinging of the adjusting plate 2 along the guide groove 12, thereby changing the relative tilt angle between the adjusting plate 2 and the support seat 1. By adjusting the tilt angle of the adjusting plate 2, the flatness of the hot-press welding head (not shown) set on the adjusting plate 2 can be further adjusted to meet the requirements of uniform hot-press welding of different IC pins.

[0036] Specifically, such as Figure 3 and Figure 4 As shown, the transmission structure 5 includes a connecting bracket 51; the connecting bracket 51 includes a first connecting part 511 connected to the adjusting plate 2, and a second connecting part 512 that extends from the first connecting part 511 and is configured to cooperate with the adjusting member 4.

[0037] The first connecting part 511 is fixedly connected to the adjusting plate 2, and the second connecting part 512 cooperates with the adjusting member 4. As the adjusting member 4 extends and retracts, the second connecting part 512 can drive the first connecting part 511 and the adjusting plate 2 fixedly connected to it to swing along the guide groove 12.

[0038] In this embodiment, the adjusting plate 2 has a connecting block 23 protruding from the side plate 11. The first connecting part 511 is fixedly connected to the side end of the connecting block 23. The connection method includes, but is not limited to, welding, bolt connection, snap connection or integral form, to ensure a stable connection.

[0039] The protrusion of the connecting block 23 outside the side plate 11 not only facilitates a stable connection with the first connecting part 511, but also provides sufficient swing space for the adjusting plate 2 when it swings, thus avoiding interference between the connecting bracket 51 and the side plate 11.

[0040] Furthermore, the first connecting part 511 is arranged parallel to the side of the adjusting plate 2, i.e., the connecting block 23, so that the adjusting plate 2 fits snugly against the side of the connecting block 23, thereby ensuring the stability of the two. The second connecting part 512 is a plate-shaped structure arranged perpendicular to the side of the adjusting plate 2 and perpendicular to the first connecting part 511. This facilitates control of the direction of the adjusting member 4 relative to the adjusting plate 2, making the adjustment effect more precise.

[0041] The adjusting member 4 has a fixing hole 41 radially provided at one end near the connecting bracket 51. The transmission structure 5 also includes a connecting rod 52 that is fixed in the fixing hole 41. The connecting rod 52 protrudes out of the fixing hole 41 and slides in cooperation with the second connecting part 512.

[0042] With the connection rod 52, the adjusting member 4 is rigidly connected to the connecting bracket 51. The bidirectional driving action of the adjusting member 4 extending or resetting can be stably transmitted to the connecting bracket 51 by the connection rod 52, and then the connecting bracket 51 drives the adjusting plate 2 to swing and adjust.

[0043] Furthermore, the connecting rod 52 and the second connecting part 512 slide together, so that when the adjusting member 4 moves in a straight line, the connecting bracket 51 can flexibly adjust its connection position with the connecting rod 52 according to the movement trajectory of the adjusting plate 2 along the arc groove, thereby effectively avoiding the jamming phenomenon caused by the mismatch between the positions of the connecting bracket 51 and the connecting rod 52. This adaptive adjustment mechanism ensures the smoothness and reliability of the entire flatness adjustment mechanism 100 during operation.

[0044] This design also compensates for assembly errors. In actual manufacturing and assembly processes, certain dimensional errors and assembly precision issues are inevitable. Through the sliding fit between the connecting rod 52 and the connecting bracket 51, these assembly errors can be absorbed and compensated to a certain extent, ensuring a stable connection between the adjusting component 4 and the connecting bracket 51.

[0045] The second connecting part 512 includes a positioning groove 513 into which the adjusting member 4 extends, connecting arms 510 located on both sides of the positioning groove 513, and floating grooves 514 correspondingly disposed on the two connecting arms 510; the connecting rod 52 is slidably embedded in the floating groove 514.

[0046] In this embodiment, the floating groove 514 includes a first groove 5141 and a second groove 5142 symmetrically arranged on both sides of the positioning groove 513, and the two ends of the connecting rod 52 are respectively slidably embedded in the first groove 5141 and the second groove 5142.

[0047] The floating groove extends in a straight line, perpendicular to the adjusting plate 2. This allows the connecting rod 52 to maintain a smooth movement trajectory as it slides along the first groove 5141 and the second groove 5142, reducing friction and wear caused by irregular movement trajectories and extending the service life of the equipment.

[0048] Furthermore, the adjustment component 4 is configured as a straight-in micrometer head, which makes the adjustment of the adjustment component 4 more precise and easier to control.

[0049] The linear micrometer head includes a micrometer rod 42, a micrometer cylinder 43, and a fine adjustment knob 44 connected in sequence. The telescopic structure 42 is the micrometer rod 42. One end of the micrometer rod 42 is engaged with the positioning groove 513 of the connecting bracket 51. The micrometer cylinder 43 is located at the other end of the micrometer rod 42, and the fine adjustment knob 44 is located at the end of the micrometer cylinder 43.

[0050] The operator can fine-tune the extension length of the micrometer rod 42 by rotating the fine-tuning knob 44 to achieve minute and accurate displacement adjustments. The straight-in micrometer head not only improves the adjustment accuracy but also makes the adjustment process more intuitive and convenient.

[0051] Meanwhile, the straight-line differential head has a compact structure and occupies little space, making it very suitable for applications with high space requirements.

[0052] Preferably, the adjusting component 4 is arranged along the direction parallel to the side plate 11, which makes the adjustment path of the adjusting component 4 consistent with the adjustment direction of the adjusting plate, ensuring stability and consistency in the adjustment process, avoiding adjustment errors caused by directional deviation, and further ensuring the accuracy and reliability of the flatness adjustment mechanism 100 in adjusting the flatness of the hot-press welding head.

[0053] The fixing hole 41 is located at the end of the micrometer rod 42. The fixing hole 41 allows the connecting rod 52 to be fixed at the end of the micrometer rod 42. The connection method is simple and effective, and easy to install and disassemble.

[0054] The first groove 5141 is located on the side of the positioning groove 513 away from the adjusting plate 2 and extends through the connecting rod 52 axially. During installation, the connecting rod 52 can be inserted axially along the first groove 5141, passing through the first groove 5141 and the fixing hole 41, until one end of the connecting rod 52 extends into the second groove 5142, achieving a stable connection. This makes the connecting rod 52 easy to install and remove, facilitating subsequent maintenance and replacement. When it is necessary to remove the connecting rod 52, simply pull it out in the opposite direction.

[0055] A baffle plate 516 is also provided on the outer side of the first groove 5141 to cover the first groove 5141 and prevent dust or debris from entering the first groove 5141 and affecting the normal operation of the connecting rod 52. The baffle plate 516 also enhances the neatness and aesthetics of the device, effectively protects the internal structure, and extends its service life.

[0056] Meanwhile, the baffle 516 is easy to disassemble. When maintenance is required on the first groove 5141 or the connecting rod 52, the baffle 516 can be easily removed for operation.

[0057] In addition, at least two guide posts 22 are spaced apart on each side of the plate body 21. In this embodiment, two guide posts 22 are spaced apart on both sides of the plate body 21. This not only enhances the structural strength of the plate 2, but also provides multi-point support during the flatness adjustment process, effectively preventing the plate body 21 from shaking or shifting, so as to ensure the stability and accuracy of the plate body 21 when adjusting the flatness.

[0058] The flatness adjustment mechanism 100 also includes a fixed bracket 6 and a locking member 7 fixedly connected to the support base 1. The adjusting member 4 is locked and fixed on the fixed bracket 6. The fixed bracket 6 is provided with a positioning hole 61 and a locking hole 62. The positioning hole 61 is coaxially arranged with the adjusting member 4 and the adjusting member 4 can pass through the positioning hole 61. The locking member 7 can pass through the locking hole 62 and lock the adjusting member 4 in the positioning hole 61.

[0059] The locking element 7 can be a screw, bolt, etc., used to securely lock the adjusting element 4 in the positioning hole 61, preventing the adjusting element 4 from loosening or shifting during the flatness adjustment process, thereby ensuring the stability of the adjusting element 4, as well as the adjustment accuracy and stability of the entire flatness adjustment mechanism 100.

[0060] When installing a straight-through micrometer, the micrometer can be passed through the positioning hole 61 of the fixed bracket 6, with the micrometer rod 42 facing the side of the connecting bracket 61. Then, the locking member 7 is passed through the locking hole 62 to lock the straight-through micrometer.

[0061] The present invention further provides a hot-press welding head device, including a welding head assembly and a flatness adjustment mechanism 100 of any of the above, wherein the adjustment plate 2 has a working plane and the welding head assembly is connected to the working plane of the adjustment plate 2.

[0062] In summary, the flatness adjustment mechanism of this utility model connects the adjusting member and the adjusting plate through a transmission structure. The telescopic movement of the adjusting member drives the adjusting plate to move through the transmission structure, and simultaneously drives the guide post to move within the guide groove. The guide groove is arc-shaped so that the tilt angle of the adjusting plate relative to the support changes during the movement, thereby adjusting the flatness of the hot-press welding head set on the adjusting plate to meet the flatness requirements of different ICs.

[0063] In the embodiments provided by this utility model, it should be understood that the above-described implementation of the structure is merely illustrative. For example, the division of the modules is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another device, or some features may be ignored or not executed.

[0064] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flatness adjustment mechanism, characterized in that, include: The support base includes two side plates arranged opposite each other, and each of the two side plates is provided with an arc-shaped guide groove. The adjusting plate includes a plate body and guide posts disposed on both sides thereof. The plate body is disposed between the two side plates, and the guide posts are slidably connected in the guide groove. The driving mechanism includes an adjusting member and a transmission structure connected to the adjusting member and the adjusting plate. The adjusting member is provided with a telescopic structure. The telescopic structure moves in a telescopic motion and drives the guide column to move in the guide groove through the transmission structure, thereby causing the adjusting plate to swing along the guide groove to adjust the tilt angle of the adjusting plate relative to the support.

2. The flatness adjustment mechanism according to claim 1, characterized in that, The transmission structure includes a connecting bracket; the connecting bracket includes a first connecting portion connected to the adjusting plate and a second connecting portion that extends from the first connecting portion and cooperates with the adjusting member.

3. The flatness adjustment mechanism according to claim 2, characterized in that, The adjusting member has a fixing hole in the radial direction at one end near the connecting bracket. The transmission structure also includes a connecting rod that is fixed in the fixing hole. The connecting rod protrudes from the fixing hole and slides in cooperation with the second connecting part.

4. The flatness adjustment mechanism according to claim 3, characterized in that, The second connecting part includes a positioning groove into which the adjusting member extends, connecting arms located on both sides of the positioning groove, and floating grooves correspondingly disposed on the two connecting arms; the connecting rod is slidably embedded in the floating groove.

5. The flatness adjustment mechanism according to claim 4, characterized in that, The floating groove extends in a straight line, and its extension direction is perpendicular to the adjusting plate.

6. The flatness adjustment mechanism according to any one of claims 3-5, characterized in that, The adjustment component is a straight-in micrometer head, which extends in a direction parallel to the side plate.

7. The flatness adjustment mechanism according to claim 6, characterized in that, The adjusting component includes a micrometer rod, a micrometer cylinder, and a fine-tuning knob connected in sequence, and the fixing hole is located at the end of the micrometer rod.

8. The flatness adjustment mechanism according to claim 1, characterized in that, At least two guide posts are spaced apart on each side of the main body of the plate.

9. The flatness adjustment mechanism according to claim 1, characterized in that, It also includes a fixed bracket and a locking member fixedly connected to the support base, wherein the adjusting member is locked and fixed to the fixed bracket; the fixed bracket is provided with a positioning hole and a locking hole, the positioning hole is coaxially arranged with the adjusting member, and the adjusting member can pass through the positioning hole; the locking member can pass through the locking hole to lock the adjusting member in the positioning hole.

10. A hot-press welding head device, characterized in that, The plate includes a welding head assembly and a flatness adjustment mechanism as described in any one of claims 1 to 9, wherein the plate has a working plane and the welding head assembly is connected to the working plane of the plate.

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