Double-station material mounting equipment

Abstract

The invention discloses double-station material mounting equipment which comprises a base, a position detection unit, a flexible feeding unit arranged on the base and a feeding platform used for conveying a carrier plate, and the two sides of the feeding platform are each symmetrically provided with a mounting unit. The position detection unit is used for detecting a mounting position on the carrier plate; the flexible feeding unit is used for providing materials for the mounting units; stand columns for supporting the mounting units to move are arranged at the two ends of the feeding platform, the stand columns and the mounting units are arranged in a # shape, the mounting units can alternately move towards one side of the feeding platform, and materials are mounted on the carrier plate. Materials are provided for the surface mounting unit in a flexible feeding mode, the surface mounting unit completes surface mounting of the materials on the carrier plate in an alternate surface mounting mode, the overall structure is compact, the occupied space is small, the surface mounting rhythm is faster, and the surface mounting efficiency can be improved; and the integrity detection on the two surfaces of the material can be completed when the material is picked up, so that the yield of the surface-mounted product is improved.

Description

Technical Field

[0001] The present application relates to the field of semiconductor mounting technology, and in particular to a double-station material mounting device. Background Art

[0002] The mounting of materials (solder pads or copper pillars, etc.) is a process on a carrier (PCB or other types of substrates). Among them, the copper pillar is usually a columnar copper structure with a hole in the middle. It is mounted on the carrier to achieve connections between circuits at different levels, or as an electrical connection and physical support component between chips, components and carriers. Most existing mounting equipment uses a single mounting mechanism for mounting operations, while the mounting mechanism of a double-station mounting equipment is usually synchronous mounting. After the mounting is completed, new materials are picked up at the same time. The mounting cycle is slow, and interference is easily generated between the mounting mechanisms, resulting in low mounting efficiency and a large overall space occupancy ratio of the equipment. Summary of the invention

[0003] The present application provides a dual-station material placement device to solve the deficiencies in the above-mentioned prior art, and adopts the following technical solutions: A double-station material placement device comprises a base, and a material feeding platform and a column arranged on the base, wherein the material feeding platform is used to transport a carrier board; The flexible loading unit and the mounting unit are symmetrically arranged on both sides of the feeding platform, and the flexible loading unit is located below the mounting unit and close to the feeding platform; the flexible loading unit is used to provide materials for the mounting unit on the same side; The columns are relatively arranged at the two ends of the material feeding platform, and are used to support the placement unit to move along the y-axis; the columns and the placement unit are arranged in a "well" shape, and the placement unit can move alternately along the columns to one side of the material feeding platform to place the material on the carrier; A position detection unit is located on the mounting unit, and the position detection unit is used to detect the mounting position on the carrier.

[0004] Preferably, the placement unit comprises a movable arm and a movable base plate, the movable base plate is provided with a picking unit capable of moving along the z-axis to pick up materials, the movable base plate can move along the x-axis on the movable arm, and the movable base plate is arranged on a side close to the feeding platform.

[0005] Preferably, the picking unit comprises a driving mechanism and a picking mechanism for picking up materials, the picking mechanism is mounted on the driving mechanism, and the driving mechanism is used to drive the picking mechanism to move along the z-axis direction to pick up or place materials.

[0006] Preferably, it also includes a visual detection unit for detecting the position of the material; the visual detection unit includes a first detection component for determining the position of the material in the flexible loading unit, and a second detection component for detecting the position of the material on the mounting unit.

[0007] Preferably, the first detection component can also detect the upper surface of the material, and the second detection component can also detect the lower surface of the material.

[0008] Preferably, the first detection component is located above the mounting unit and is arranged opposite to the flexible loading unit; and the second detection component is located inside the mounting unit.

[0009] Preferably, the picking mechanism is arranged on the mounting frame at a side away from the feeding platform.

[0010] Preferably, the picking mechanism comprises a power component and a turret, and a plurality of picking components are evenly distributed on the outer side wall of the turret. The power component is used to drive the turret to rotate, and the picking component picks up materials by vacuum adsorption.

[0011] Preferably, a rotary joint is further included, and the rotary joint is arranged on one side of the mounting unit and is used to connect the vacuum generating device to each of the picking components.

[0012] The beneficial effects of this application are: (1) The present application adopts a "well"-shaped structural layout as a whole, with the placement units symmetrically arranged on both sides of the feeding platform. Materials are provided to the placement units respectively through a flexible feeding method to reduce damage to the materials. The placement units place the materials on the carrier in an alternating manner. There is no interference between the placement units, which improves safety. At the same time, the overall structure is compact, the moving distance in the y-axis direction is short, the material placement rhythm is faster, and the material placement efficiency can be improved.

[0013] (2) On the basis of the above, the visual inspection unit can complete double-sided inspection of the material when the placement mechanism picks up the material before placement, ensuring the integrity of the material and improving the product quality and product yield after placement.

[0014] (3) The second detection component can also determine whether there is a deviation in the position of the material on the picking component, so that when the material is placed, the deviation can be compensated, thereby improving the placement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present application; Figure 2 It is a partial structural diagram of this application; Figure 3 It is a schematic diagram of the mounting unit structure of the present application; Figure 4 It is a schematic diagram of the pickup unit structure of the present application; Figure 5 This application Figure 4 Right view of; Figure 6 It is a partial enlarged view of location B of this application.

[0016] In the figure: 1. Base; 2. feeding platform, 21. first conveying mechanism, 22. second conveying mechanism, 23. adjusting mechanism; 3. mounting unit, 31. movable arm, 32. movable bottom plate, 33. picking unit, 331. driving mechanism, 332. mounting frame, 333. picking mechanism; 4. Flexible feeding unit, 41. Feeding bin, 42. Swinging tray, 43. Vibrating device; 5. Column, 6. Position detection unit; 7. Visual detection unit, 71. First detection component, 72. Second detection component; 8. Bracket, 9. Rotating joint, 10. Picking component, 100. Placement hole, 101. Suction nozzle, 102. Guide pin, 103. Elastic part. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in the present application are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0018] See also Figures 1 to 6 , further explain this application: Combination Figure 1 and Figure 2 , a double-station material placement device, includes a base 1 and a position detection unit 6, and a feeding platform 2 arranged on the base 1; the feeding platform 2 can be arranged along the x-axis direction, and is used to transport the carrier along the x-axis direction; the position detection unit 6 is used to detect the placement position on the carrier, and the position detection unit 6 can be arranged on the placement unit 3.

[0019] The feeding platform 2 includes a first conveying mechanism 21 and a second conveying mechanism 22 arranged relatively to each other, and an adjusting mechanism 23 for adjusting the distance between the first conveying mechanism 21 and the second conveying mechanism 22. The feeding platform 2 can convey carriers of different sizes to improve the versatility of the equipment.

[0020] Both sides of the feeding platform 2 ( Figure 1 The flexible loading unit 4 and the mounting unit 3 are symmetrically arranged (along the y-axis direction), and the flexible loading unit 4 and the mounting unit 3 on both sides of the feeding platform 2 are structurally symmetrical. The flexible loading unit 4 is located below the mounting unit 3 and close to the feeding platform 2, and is used to provide materials to the mounting units 3 on the same side respectively.

[0021] The two ends of the feeding platform 2 are oppositely provided with columns 5 for supporting the movement of the mounting unit 3. The columns 5 and the mounting unit 3 are arranged in a "well" shape, and the overall structure is more stable when the equipment is running; the mounting unit 3 can alternately move along the columns 5 to one side of the feeding platform 2 ( Figure 1 In the figure, it is along the y-axis direction), and the picked materials are alternately placed on the placement positions detected by the position detection unit 6.

[0022] The present application adopts a double-station alternating operation mode. When any of the mounting units 3 picks up a material, the remaining mounting unit 3 mounts the picked-up material to the corresponding mounting position of the carrier. The mounting units 3 will not interfere with each other, thus avoiding collisions and having good safety. The material mounting rhythm can be improved, thereby improving the material mounting efficiency.

[0023] Combination Figure 2 and Figure 3 , the placement unit 3 can alternately move to one side of the material feeding platform 2. The placement unit 3 includes a movable arm 31 mounted on the column 5, and a movable bottom plate 32 arranged on the movable arm 31, the movable bottom plate 32 can move along the x-axis direction on the movable arm 31, and a picking unit 33 that can move along the z-axis direction to pick up materials is arranged on the movable bottom plate 32; the movable bottom plate 32 is arranged on the movable arm 31 close to the side of the material feeding platform 2, which can shorten the distance between the picking unit 33 and the material feeding platform 2.

[0024] Among them, the movable arm 31 and the column 5 can respectively realize the movement of the movable base plate 32 (x-axis direction) and the movable arm 31 (y-axis direction) by setting a linear module (not shown), thereby adjusting the position of the picking unit 33 in space; compared with the existing belt drive or gear rack drive and other methods, the structure is more compact and can further reduce the occupied space.

[0025] Combination Figure 4The picking unit 33 includes a driving mechanism 331 and a picking mechanism 333 for rotating and picking up materials. A mounting frame 332 is provided between the driving mechanism 331 and the picking mechanism 333. The driving mechanism 331 is used to drive the picking mechanism 333 to move along the z-axis direction to pick up or mount materials. The driving mechanism 331 can be a screw mechanism driven by a motor, but is not limited to this.

[0026] Combination Figure 4 , wherein the picking mechanism 333 includes a power component and a turret, and the power component can be a motor; Figure 5 The outer wall of the turret is evenly distributed with a plurality of picking components 10 for picking up materials; in this embodiment, there are 12 picking components 10, and the angle between adjacent picking components 10 is A, and the power component drives the turret to rotate by angle A each time.

[0027] Combination Figure 6 The picking component 10 includes a suction nozzle 101 and a guide pin 102, wherein the guide pin 102 is arranged on the protruding end of the suction nozzle 101, and the guide pin 102 is used to insert into the hole in the middle of the material, and the suction nozzle 101 is provided with an adsorption hole for adsorbing the material to pick up the material by adsorption; the suction nozzle 101 can be telescopically moved along its own axial direction; the guide pin 102 is provided with a guide portion for guiding itself to cooperate with the hole on the material; wherein, the outer side of the suction nozzle 101 is provided with an elastic member 103 to realize the extension and contraction of the suction nozzle 101, and the elastic member 103 can be a spring, so that the suction nozzle can flexibly contact the material, and can provide protection for the picking component 10 and the material to avoid damage; wherein, the material can be a copper column; of course, by replacing different suction nozzles, it is possible to pick up other types of materials.

[0028] During operation, the driving mechanism 331 drives the picking mechanism 333 to descend close to the flexible loading unit 4 or the carrier, and then picks up or mounts the material, and then drives the picking mechanism 333 away from the flexible loading unit 4 or the carrier, and the power component drives the turret to rotate angle A, and replaces the next picking component 10 for the next picking or mounting.

[0029] Combination Figure 4 In order to avoid damage to the material, a flexible feeding method is adopted. The flexible feeding unit 4 includes a feeding bin 41 and a swinging material tray 42. The swinging material tray 42 is arranged between the feeding platform 2 and the feeding bin 41. The swinging material tray 42 places the material by vibration. The swinging material tray 42 is detachably connected to the vibration device 43 so that different swinging material trays 42 can be replaced for different materials. The vibration device 43 vibrates the material into the placement hole 100 in the swinging material tray 42, which can reduce damage to the material.

[0030] Combination Figure 3 In order to avoid mounting damaged materials on the carrier plate, a visual inspection unit 7 for inspecting the end surface of the material is also included, and the visual inspection unit 7 can determine the position of the material on the material placing tray 42 and the picking component 10.

[0031] Among them, the visual inspection unit 7 includes a first detection component 71 and a second detection component 72, the first detection component 71 is located above the mounting unit 3 and is arranged opposite to the swing tray 42; when the equipment is running, the first detection component 71 detects the material in the placement hole 100 in the swing tray 42 to determine the position of the material to be picked up; in this embodiment, 12 material positions are determined at a time for the picking component 10 to pick up in sequence; when mounting or picking up materials, the second detection component 72 can detect the materials passing thereunder in sequence to determine whether there is a deviation in the position of the material on the picking component 10, and then compensate when mounting the material to improve the mounting accuracy.

[0032] In one embodiment, when the first detection component 71 detects the position of the material in the material placement tray 42, it can also detect the upper surface of the material in the placement hole 100; when the picking component 10 picks up the material, it will adsorb the upper surface of the material and rotate, and when passing under the second detection component 72, while detecting the position of the material on the picking component 10, it can also detect the lower surface of the material, thereby realizing integrity detection of both sides of the material before mounting, avoiding damaged materials from being mounted on the carrier, and thus improving the yield of the product after mounting.

[0033] Combination Figure 4 In one embodiment, the picking mechanism 333 is arranged on the mounting frame 332 away from the side of the feeding platform 2, so as to protect the picking mechanism 333; wherein the mounting frame 332 can be a cage-shaped structure, and the picking mechanism 333 and the second detection component 72 are both arranged in the mounting frame 332; the second detection component 72 is located above the picking mechanism 333, so that the picking mechanism 333 and the second detection component 72 can be hidden in the mounting frame 332, which can reduce the volume of the placement unit 3 and protect the picking mechanism 333 and the second detection component 72 at the same time.

[0034] In some embodiments, a rotary joint 9 is also included, and the rotary joint 9 can be an air slip ring; the rotary joint 9 is arranged on one side of the picking mechanism 333, and is used to connect the vacuum generating device to each of the picking components 10 to ensure that negative pressure can be stably provided to the picking components 10.

Claims

1. Double-station material placement equipment, characterized by: It comprises a base, and a feeding platform and a column arranged on the base, wherein the feeding platform is used to transport the carrier plate; The flexible loading unit and the mounting unit are symmetrically arranged on both sides of the feeding platform, and the flexible loading unit is located below the mounting unit and close to the feeding platform; the flexible loading unit is used to provide materials for the mounting unit on the same side; The columns are relatively arranged at the two ends of the feeding platform to support the placement unit to move along the y-axis; the columns and the placement unit are arranged in a "well" shape, and the placement unit can move alternately along the columns to one side of the feeding platform to place the material on the carrier; A position detection unit is located on the mounting unit, and the position detection unit is used to detect the mounting position on the carrier.

2. The dual-station material placement equipment according to claim 1, characterized in that: The mounting unit comprises a movable arm and a movable bottom plate, wherein a picking unit capable of moving along the z-axis to pick up materials is arranged on the movable bottom plate, and the movable bottom plate can move along the x-axis on the movable arm, and the movable bottom plate is arranged on a side close to the feeding platform.

3. The dual-station material placement equipment according to claim 2, characterized in that: The picking unit comprises a driving mechanism and a picking mechanism for picking up materials. The picking mechanism is mounted on the driving mechanism, and the driving mechanism is used to drive the picking mechanism to move along the z-axis direction to pick up or mount materials.

4. The dual-station material placement equipment according to claim 1, characterized in that: It also includes a visual detection unit for detecting the position of the material; the visual detection unit includes a first detection component for determining the position of the material in the flexible feeding unit, and a second detection component for detecting the position of the material on the mounting unit.

5. The dual-station material placement equipment according to claim 4, characterized in that: The first detection component can also detect the upper surface of the material, and the second detection component can also detect the lower surface of the material.

6. The dual-station material placement equipment according to claim 4, characterized in that: The first detection component is located above the mounting unit and is arranged opposite to the flexible loading unit; the second detection component is located inside the mounting unit.

7. The dual-station material placement equipment according to claim 3 is characterized in that: The picking mechanism is arranged on the mounting frame at a side away from the feeding platform.

8. The dual-station material placement equipment according to claim 3, characterized in that: The picking mechanism comprises a power component and a turret. The outer side wall of the turret is evenly distributed with a plurality of picking components. The power component is used to drive the turret to rotate, and the picking components pick up materials through vacuum adsorption.

9. The dual-station material placement equipment according to claim 1, characterized in that: It also includes a rotary joint, which is arranged on one side of the mounting unit and is used to connect the vacuum generating device to each of the picking components.

Images