Eutectic machine swing arm device capable of adjusting balance
By setting up adjustable weight blocks and suction head connection slots in the swing arm device of the eutectic machine, the problem of direct hard contact with the chip and swing arm excessive vibration is solved, and the chip protection and normal operation of the suction head are achieved.
Patent Information
- Application Number
- CN202421181780.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The swing arm of the suction head of the existing eutectic machine is prone to contact the chip directly during the downward pressure, resulting in chip damage; at the same time, due to the center of gravity of the swing arm being biased forward, excessive vibration will occur, affecting the normal operation of the suction head.
An adjustable and balanced eutectic machine swing arm device is designed, and by setting a detachable counterweight block at the lower part of the base, the center of gravity of the entire arm body is adjusted to reduce vibration. At the same time, a suction head connection groove is provided at the front end of the arm body, which is removable and connected to ensure that the suction head does not generate excessive pressure when it contacts the chip.
It effectively protects the chip from damage, reduces the vibration of the swing arm during the operation, and ensures the normal operation of the suction head and the smooth transportation of the chip.
Smart Images
Figure CN222653928U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of semiconductor processing equipment, and in particular relates to a eutectic machine swing arm device with adjustable balance. Background Art
[0002] Semiconductor chip manufacturing is one of the key industries currently developed in my country, and semiconductor chip production equipment is also a focus of research in the subject field. When packaging semiconductor chips, a eutectic machine is needed to connect the chip to the substrate or the substrate to the tube shell, which involves the picking up and replacing of the chip. In the eutectic machine, a rotating swing arm is used to turn the suction head to the top of the chip, and then the chip is sucked after it is lowered, and then the swing arm rotates again to achieve the transfer of the chip. During the pressing process of the existing eutectic machine suction head swing arm, the suction head is in direct hard contact with the chip, which is easy to crush the chip; if the suction head is changed to soft contact with the chip, that is, the swing arm installed with the suction head can be active when the suction head contacts the chip, and the suction head will not be pressed hard when it contacts the chip, then the chip can be protected. However, due to the slender swing arm and the suction head set at the front end, the center of gravity of the entire swing arm device is forward, resulting in "top-heavy", and the movable swing arm descends quickly, which eventually causes the swing arm to vibrate too much, affecting the normal operation of the suction head. Utility Model Content
[0003] The purpose of the utility model is to propose an adjustable balance eutectic machine swing arm device to solve the problems that the fixed suction head swing arm of the eutectic machine in the prior art easily causes the suction head to crush the chip, and the movable suction head is prone to vibration due to the forward center of gravity, which affects the normal operation of the suction head. The utility model device can prevent the suction head from damaging the chip when it contacts the chip, and at the same time avoid excessive vibration of the swing arm during the action due to the forward shift of the center of gravity, ensuring that the suction head can attract, pick up and transport the chip normally.
[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:
[0005] A eutectic machine swing arm device with adjustable balance, including a power device and an attraction head; also including a base, an arm body and a counterweight device; the arm body is detachably connected to the base; the base is connected to the power device; the attraction head is detachably connected to the front end of the arm body; a through groove is provided on the base; the tail of the arm body is inserted into the through groove; a mounting column is provided at the tail of the arm body; the counterweight device includes a counterweight block I and a counterweight block II; a mounting cylinder is provided on the top of the counterweight block I; the mounting cylinder and the mounting column are detachably matched and fitted; movable buckle devices are provided between the counterweight block I and the counterweight block II and between the two groups of counterweight blocks II.
[0006] The suction head is a suction head device on the eutectic machine used to absorb chips, and it mainly works by negative pressure suction. The suction head is detachably connected to the front end of the arm body; the power equipment is an existing device on the eutectic machine that drives the mechanical swing arm assembly composed of a base and an arm body to rotate; the rear part of the base is detachably connected to the power equipment; the arm body is detachably connected to the base, and the arm body of corresponding size can be replaced according to needs; the counterweight block I is detachably connected to the tail of the arm body in the form of an installation tube inserted into the installation column, thereby increasing the weight of the rear part of the arm body and adjusting the center of gravity backward, so that the entire arm body is more balanced and reduces vibration; the counterweight block II is connected to the counterweight block I through a movable buckle device, and the counterweight blocks II are also connected to each other through a movable buckle device to change and adjust the center of gravity of the entire arm body and reduce vibration.
[0007] As a further technical improvement, it also includes a mounting block and a mounting strip; a connecting groove is provided on one side of the base; the connecting groove is connected to the through groove; the mounting strip is connected across the top of the through groove; the mounting block is connected to the mounting strip; a mounting tail is provided at the tail of the arm body; the mounting tail passes through the connecting groove and enters the through groove.
[0008] As a further technical improvement, it also includes a pressure arm nut; the lower end of the pressure arm nut is connected to the mounting tail; the upper end of the pressure arm nut passes through the mounting block; a pressure arm spring is sleeved between the mounting block and the top of the pressure arm nut; and a gap is left between the pressure arm nut and the mounting block.
[0009] There is a gap between the pressure arm nut and the mounting block, and there is also a gap between the arm body and the connecting groove, so that the arm body can swing when the suction head contacts the chip, and the suction head will not directly make hard contact with the chip and damage the chip; when the arm body swings, the pressure arm spring is pressed down by the pressure arm nut, and the pressure arm spring needs to restore its deformation, so the arm body is pushed open at all times, so that the suction head has a certain pressure on the chip, but does not damage the chip.
[0010] As a further technical improvement, it further comprises a hinge connecting plate; one leaf of the hinge connecting plate is connected to the base, and the other leaf is connected to the arm body. The hinge connecting plate further fixes the arm body so that the arm body can rotate with the position of the hinge connecting plate as the rotation axis.
[0011] As a further technical improvement, the movable buckle device includes a buckle strip and a buckle groove; the buckle groove is arranged at the bottom of the counterweight block I and the counterweight block II; the buckle groove is arranged at the top of the counterweight block II; the buckle strip and the buckle groove are detachably connected. After the buckle strip and the buckle groove are buckled together, the counterweight block I and the counterweight block II can be connected.
[0012] As a further technical improvement, a convex ball is provided at the end of the mounting column, and a rubber tube is provided in the mounting tube. After the mounting tube is inserted into the mounting column, the rubber tube is deformed and is clamped by the convex ball, so that the counterweight block I is fixedly installed.
[0013] As a further technical improvement, the counterweight block II includes at least two groups; the weight of the counterweight block II has at least two specifications. The counterweight block II has multiple groups and multiple weights, and the weight of the base can be increased or decreased according to actual conditions, thereby adjusting the center of gravity and balance of the entire robotic arm device and reducing vibration.
[0014] As a further technical improvement, the front end of the arm body is provided with a suction head connection slot; the suction head is detachably arranged on the suction head connection slot. The connection method can be to set a connection block on the suction head, connect the connection block by snapping it into the suction head connection slot, and then tighten it by screws, etc., as long as the suction head can be fixedly connected to the arm body.
[0015] As a further technical improvement, the base and the arm are both provided with weight-reducing holes, and a weight-reducing groove is provided under the arm. The weight-reducing holes and the weight-reducing groove are used to reduce the weight of the arm.
[0016] As a further technical improvement, the arm body gradually tilts inwards to form an "arrow" shape with a small front and a large back. The arm body gradually tilts inwards to form an "arrow" shape with a small front and a large back, making the rear end thicker than the front end, increasing the support force and weight of the rear end and reducing vibration.
[0017] The method for using the above-mentioned adjustable balance eutectic machine swing arm device is as follows:
[0018] When in use, the power equipment drives the mechanical swing arm assembly composed of the base and the arm body to swing rapidly, and then quickly descend, pressing the suction head onto the chip and sucking the chip; at this time, the front end of the arm body is slightly tilted up, so that the suction head will not cause damage to the chip; during the entire swing and descent of the arm body, because the arm body is long and the arm body can move up and down, and the suction head has a certain weight, the center of gravity of the entire arm body is forward, and excessive shaking occurs during rapid rotation and up and down swinging, which affects the suction head's contact, attraction, lifting and transportation of the chip; at this time, according to the actual situation, the counterweight block I is placed at the rear end of the arm body through the connection of the mounting tube and the mounting column, increasing the weight of the rear end of the arm body, changing the center of gravity of the entire arm body, moving the center of gravity of the entire arm body backward, increasing stability, and reducing the vibration of the arm body during action, making the suction head contact and attract the chip more crisp, and making the arm body more stable when transporting the chip.
[0019] The technical solution of the utility model has the following beneficial effects:
[0020] 1. This device sets detachable counterweight blocks I and II at the bottom of the base to increase the weight of the base, adjust the center of gravity of the entire arm, and reduce vibration during swinging, thereby ensuring that the suction head contacts the chip steadily and achieves smooth transportation.
[0021] 2. The counterweight block II of this device can be superimposed and set at the lower part of the counterweight block I, so that the weight of the rear part of the arm body can be continuously adjusted according to the actual situation, so that the center of gravity of the entire arm body is in a moderate position, thereby reducing the vibration during swinging, allowing the arm body to adjust the center of gravity as needed, and has strong applicability.
[0022] 3. When the suction head of the device contacts the chip, the front end of the arm can be lifted up, so that the suction head will not contact the chip with great force, thus protecting the chip from damage.
[0023] 4. The arm of the device is shaped like an arrow with a larger back and a smaller front, which can provide a stronger supporting force to the rear, reduce vibration during swinging, and improve the stability of the arm.
[0024] 5. The weight-reducing holes and weight-reducing grooves of the device can reduce the overall weight of the device, making the mechanical swing arm assembly swing more flexibly and reducing production materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.
[0026] Figure 1 It is a schematic diagram of the overall structure of the device from a front tilted viewing angle.
[0027] Figure 2 It is a schematic diagram of the overall structure of the device from a side tilt perspective.
[0028] Figure 3 This is a schematic diagram of the structure of the device when the base and arm are combined from an inclined bottom perspective.
[0029] Figure 4 It is a structural schematic diagram of the base and the counterweight device.
[0030] Figure markings: 1-base, 2-arm body, 3-counterweight device, 4-through slot, 5-installation tail, 6-installation block, 7-attraction head connecting slot, 8-counterweight block I, 9-counterweight block II, 10-installation cylinder, 11-installation column, 12-convex ball, 13-weight reduction hole, 14-hinge connecting plate, 15-weight reduction slot, 16-buckle strip, 17-buckle slot, 18-connecting slot, 19-attraction head, 20-pressure arm nut, 21-pressure arm spring, 22-installation strip. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Embodiment 1:
[0033] like Figures 1 to 4 As shown, an adjustable balanced eutectic machine swing arm device includes a power device and an attraction head 19; it also includes a base 1, an arm body 2 and a counterweight device 3; the arm body 2 is detachably connected to the base 1; the base 1 is connected to the power device; the attraction head 19 is detachably connected to the front end of the arm body 2; a through groove 4 is provided on the base 1; the tail of the arm body 2 is inserted into the through groove 4; a mounting column 11 is provided at the tail of the arm body 2; the counterweight device 3 includes a counterweight block Ⅰ8 and a counterweight block Ⅱ9; a mounting tube 10 is provided on the top of the counterweight block Ⅰ8; the mounting tube 10 and the mounting column 11 are detachably matched and fitted; movable buckle devices are provided between the counterweight block Ⅰ8 and the counterweight block Ⅱ9 and between the two groups of counterweight blocks Ⅱ9.
[0034] It also includes a mounting block 6 and a mounting strip 22; a connecting groove 18 is provided on one side of the base 1; the connecting groove 18 is connected to the through groove 4; the mounting strip 22 is connected across the through groove 4; the mounting block 6 is connected to the mounting strip 22; a mounting tail 5 is provided at the tail of the arm body 2; the mounting tail 5 passes through the connecting groove 18 and enters the through groove 4.
[0035] It also includes a pressure arm nut 20; the lower end of the pressure arm nut 20 is connected to the mounting tail 5; the upper end of the pressure arm nut 20 passes through the mounting block 6; a pressure arm spring 21 is sleeved between the mounting block 6 and the top of the pressure arm nut 20; a gap is left between the pressure arm nut 20 and the mounting block 6.
[0036] It also includes a hinge connecting plate 14 ; one leaf of the hinge connecting plate 14 is connected to the base 1 , and the other leaf is connected to the arm body 2 .
[0037] The movable buckle device includes a buckle strip 16 and a buckle groove 17; the buckle groove 17 is arranged at the bottom of the counterweight block I8 and the counterweight block II9; the buckle groove 17 is arranged at the top of the counterweight block II9; the buckle strip 16 and the buckle groove 17 are detachably connected.
[0038] A convex ball 12 is disposed at the end of the installation column 11 ; a rubber tube is disposed in the installation tube 10 .
[0039] The counterweight blocks II 9 include at least two groups; the weight of the counterweight blocks II 9 has at least two specifications.
[0040] The arm body 2 gradually tilts inwards to form an "arrow" shape that is smaller in the front and larger in the back.
[0041] The method of using the utility model is as follows:
[0042] When in use, the power equipment drives the mechanical swing arm assembly composed of the base 1 and the arm body 2 to swing rapidly, and then quickly descend, pressing the suction head 19 onto the chip and sucking the chip; at this time, the front end of the arm body 2 is slightly upturned, so that the suction head 19 will not cause damage to the chip; during the entire swinging and descending process of the arm body 2, since the arm body 2 is long and the arm body 2 can move up and down, and the suction head 19 has a certain weight, the center of gravity of the entire arm body 2 is forward, and excessive shaking occurs during rapid rotation and up and down swinging, which affects the suction head 19 contacting, attracting, lifting and transporting the chip; at this time, according to the actual situation, the counterweight block Ⅰ8 is placed at the rear end of the arm body 2 through the mounting tube 10 and the mounting column 11, increasing the weight of the rear end of the arm body 2, changing the center of gravity of the entire arm body 2, moving the center of gravity of the entire arm body 2 backward, increasing stability, and reducing the vibration of the arm body 2 during action, making the suction head 19 contact and attract the chip more crisply, and making the arm body 2 more stable when transporting the chip.
[0043] Embodiment 2:
[0044] The difference between this embodiment and the first embodiment is that: the front end of the arm body 2 is provided with a suction head connecting groove 7; and the suction head 19 is detachably arranged on the suction head connecting groove 7.
[0045] The method of use of this embodiment is the same as that of the first embodiment.
[0046] Embodiment three:
[0047] The difference between this embodiment and the second embodiment is that: the base 1 and the arm body 2 are both provided with a weight-reducing hole 13 ; and a weight-reducing groove 15 is provided below the arm body 2 .
[0048] The method of use of this embodiment is the same as that of the first embodiment.
[0049] Embodiment 4:
[0050] The difference between this embodiment and the third embodiment is that: the front end of the arm body 2 is provided with a suction head connection slot 7; the suction head 19 is detachably arranged on the suction head connection slot 7. The base 1 and the arm body 2 are both provided with a weight reduction hole 13; and a weight reduction slot 15 is provided below the arm body 2.
[0051] The method of use of this embodiment is the same as that of the first embodiment.
[0052] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Personnel in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.
[0053] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inside", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0054] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the terms in the present invention can be understood according to specific circumstances.
Claims
1. A eutectic machine swing arm device with adjustable balance, comprising a power device and a suction head (19); characterized in that: It also comprises a base (1), an arm (2) and a counterweight device (3); the arm (2) is detachably connected to the base (1); the base (1) is connected to a power device; the suction head (19) is detachably connected to the front end of the arm (2); The base (1) is provided with a through slot (4); the tail of the arm (2) is inserted into the through slot (4); a mounting column (11) is provided at the tail of the arm (2); the counterweight device (3) comprises a counterweight block I (8) and a counterweight block II (9); a mounting tube (10) is provided at the top of the counterweight block I (8); the mounting tube (10) and the mounting column (11) are detachably matched and fitted; movable buckle devices are provided between the counterweight block I (8) and the counterweight block II (9) and between the two sets of counterweight blocks II (9).
2. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: It also comprises a mounting block (6) and a mounting strip (22); a connecting groove (18) is provided on one side of the base (1); the connecting groove (18) is communicated with the through groove (4); the mounting strip (22) is connected across the through groove (4); the mounting block (6) is connected to the mounting strip (22); a mounting tail (5) is provided at the tail of the arm body (2); the mounting tail (5) passes through the connecting groove (18) and enters the through groove (4).
3. The adjustable balance eutectic machine swing arm device according to claim 2, characterized in that: It also includes a pressure arm nut (20); the lower end of the pressure arm nut (20) is connected to the mounting tail (5); the upper end of the pressure arm nut (20) passes through the mounting block (6); a pressure arm spring (21) is sleeved between the mounting block (6) and the top of the pressure arm nut (20); and a gap is left between the pressure arm nut (20) and the mounting block (6).
4. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: It also comprises a hinge connection plate (14); one leaf of the hinge connection plate (14) is connected to the base (1), and the other leaf is connected to the arm body (2).
5. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: The movable buckle device comprises a buckle strip (16) and a buckle groove (17); the buckle groove (17) is arranged at the bottom of the counterweight block I (8) and the counterweight block II (9); the buckle groove (17) is arranged at the top of the counterweight block II (9); the buckle strip (16) and the buckle groove (17) are detachably connected.
6. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: A convex ball (12) is provided at the end of the installation column (11); and a rubber tube is provided inside the installation tube (10).
7. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: The counterweight blocks II (9) include at least two groups; the weight of the counterweight blocks II (9) has at least two specifications.
8. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: The front end of the arm body (2) is provided with a suction head connection groove (7); the suction head (19) is detachably arranged on the suction head connection groove (7).
9. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: The base (1) and the arm body (2) are both provided with weight-reducing holes (13); and a weight-reducing groove (15) is provided below the arm body (2).
10. The adjustable balance eutectic machine swing arm device according to claim 1, characterized in that: The arm body (2) gradually tilts inwards, forming an "arrow" shape that is smaller at the front and larger at the back.