Chip mounter chip mounting head

Abstract

The utility model relates to a chip mounter, and discloses a chip mounting head of the chip mounter, which is provided with two groups of pneumatic suction heads, and the plurality of pneumatic suction heads on two second mounting parts can enter a working state in turn through an air cylinder. When a group of pneumatic suction heads in a working state suck electronic elements, the electronic elements which are not sucked or fall off after being sucked occur, and when the chip mounting heads enter the visual detection module, the chip mounting heads are detected as missing parts. At the moment, the air cylinder enables the other set of pneumatic suction heads to enter the working state, and the next set of electronic elements are directly sucked again; and the group of pneumatic suction heads correspondingly enter a non-working state, and the rest adsorbed electronic elements fall into the corresponding material receiving parts, so that the chip mounting heads do not need to move to a waste material position and then return to a material suction position. The beneficial effects are that after the electronic component is missed in suction or falls off, the processing time is reduced, and the influence on the chip mounting efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to a chip mounter, in particular to a chip mounter head. Background Art

[0002] The placement machine is used to place electronic components onto the PCB board. Before this, the PCB board is brushed with solder paste, and then after reflow soldering, these electronic components can be fixed to the PCB board. The placement machine generally includes a fixing unit for fixing the PCB board, a placement head for sucking electronic components, a two-axis mobile module to drive the placement head to move, and a vision module to detect the placement head. After the placement head picks up the electronic components, it will pass through the vision module, which will detect whether any electronic components have been missed or fallen. If this happens, the placement head will not place the components on the PCB board. Instead, the two-axis mobile module will move it to the waste area, discard the remaining electronic units, and then return to the suction position to pick up the electronic components again. This also leads to the situation that if electronic components are missed or fall, the placement head needs to move to the waste area and then back to the suction position, which reduces the efficiency of the placement. Utility Model Content

[0003] The present application provides a chip placement head for a chip placement machine, which can solve the problems raised in the background technology.

[0004] In this application, a placement head of a placement machine is provided, comprising:

[0005] The connecting seat has a mounting opening on the bottom surface, and the side panels on both sides of the mounting opening are provided with slide grooves, the two sides of the slide groove are respectively at the first high position and the second high position, and the middle of the slide groove is the low position;

[0006] a plurality of electromagnets, arranged on a horizontal inner wall of the mounting opening of the connecting seat along a first direction from one side plate to the other side plate;

[0007] Two material receiving parts are fixedly arranged on the connecting seat, corresponding to the lower part of the first high position and the lower part of the second high position respectively;

[0008] a first mounting portion, connected to the connecting seat in a horizontal sliding manner along a second direction perpendicular to the first direction;

[0009] Two second mounting parts are connected to the first mounting part in an upward and downward sliding manner; each second mounting part is provided with a plurality of pneumatic suction heads which are limited at the lower side by compression springs; and each second mounting part is also provided with guide wheels matching the slide groove on both sides;

[0010] The cylinder drives the first mounting part to slide; when the piston rod is in the extension limit position, one of the second mounting parts corresponds to the first high position, and the other second mounting part corresponds to the low position; when the piston rod is in the retraction limit position, the second mounting part in the first high position enters the low position, and the second mounting part in the low position enters the second high position; for the second mounting part in the low position, its multiple pneumatic suction heads correspond one by one to the multiple electromagnets, and the pneumatic suction heads can be adsorbed to the upper limit position by the corresponding electromagnets.

[0011] Furthermore, the chute includes: a first chute and a second chute that are separated; the ends of the first chute and the second chute that are close to each other correspond to the lower positions of the chute and are staggered up and down.

[0012] Furthermore, the limiting block between the first mounting portion and the pneumatic suction head can be adjusted to a fixed position on the pneumatic suction head; when the pneumatic suction head is in the lower limit position, the limiting block presses downward against the second mounting portion.

[0013] Furthermore, the cylinder body of the cylinder is hinged to the connecting seat, and the piston rod is hinged to the first mounting portion.

[0014] Furthermore, a two-position three-way reversing valve is provided on the connecting seat; all the pneumatic suction heads on one second mounting part are connected to one outlet channel of the reversing valve; and all the pneumatic suction heads on the other second mounting part are connected to the other outlet channel of the reversing valve.

[0015] Furthermore, each of the material connecting parts includes: a connecting strip fixed to the connecting seat and a material trough detachable from the connecting strip.

[0016] In summary, in the present application, a patch head of a patch machine is provided with two groups of pneumatic suction heads. Through the cylinder, the multiple pneumatic suction heads on the two second mounting parts can enter the working state in turn. When a group of pneumatic suction heads in the working state absorbs electronic components, some are not absorbed or fall off after absorption. When the patch head enters the visual inspection module, it will be detected as a missing component. At this time, the cylinder enables the other group of pneumatic suction heads to enter the working state and directly re-absorb the next group of electronic components; this group of pneumatic suction heads correspondingly enters the non-working state, and the remaining absorbed electronic components fall into the corresponding material receiving part, so the patch head does not need to move to the waste material and then return to the material absorption position. The beneficial effect is: when electronic components are missed or fall off, the processing time is reduced, and the impact on the patch efficiency is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0018] Figure 1 This is a schematic diagram of the structure of this utility;

[0019] Figure 2 This is a side view of the utility model;

[0020] Figure 3 It is a schematic diagram of the setting on the first mounting part;

[0021] Figure 4 is a schematic diagram of the arrangement on the second mounting portion;

[0022] Figure 5 It is a side view after the connection seat is cut away.

[0023] In the figure,

[0024] 1. Connecting seat; 1a. Rectangular frame; 1b. Connecting plate; 1c. Slide groove; 1c1. First groove; 1c2. Second groove; 1d. Reversing valve;

[0025] 2. Electromagnet;

[0026] 3. Material connection part; 3a. Joint strip; 3b. Material trough;

[0027] 4. First mounting portion; 4a. First linear guide rail;

[0028] 5. Second mounting portion; 5a. Second linear guide rail; 5b. Pneumatic suction head; 5b1. Limit block; 5b2. Stop block; 5c. Compression spring; 5d. Step through hole; 5e. Linear bearing; 5f. Guide wheel;

[0029] 6. Cylinder. DETAILED DESCRIPTION

[0030] The following is further explained in conjunction with the accompanying drawings. Unless otherwise defined, the technical terms or scientific terms used in this disclosure should have the usual meanings understood by people with ordinary skills in the field to which this disclosure belongs. The "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprising" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0031] See also Figure 1 and Figure 5, A component placement head of a component mounter, comprising a connection base 1, a plurality of electromagnets 2, two material receiving parts 3, a first mounting part 4, two second mounting parts 5, and a cylinder 6.

[0032] The bottom surface of the connection base 1 has a mounting opening. Specifically, the connection base 1 may include a rectangular frame 1a and a connection plate 1b fixed to the top opening of the rectangular frame 1a, and the space inside the rectangular frame 1a is the mounting opening.

[0033] Sliding grooves 1c are provided on the side plates on both sides of the mounting opening. The two sides of the sliding groove 1c are respectively the first high position and the second high position, and the middle of the sliding groove 1c is the low position.

[0034] The plurality of electromagnets 2 are arranged on the horizontal inner wall of the mounting opening of the connection base 1 in a first direction from one side plate to the other side plate, that is, they can be arranged on the connection plate 1b.

[0035] Please refer to Figure 2 , The first mounting part 4 is horizontally slidably connected to the connection base 1 in a second direction perpendicular to the first direction. Specifically, a set of first linear guide rails 4a may be fixedly connected to the bottom surface of the connection base 1, and the first mounting part 4 is fixedly connected to the mounting slider matching with this set of first linear guide rails 4a.

[0036] Please refer to Figure 3 , The two second mounting parts 5 are both slidably connected to the first mounting part 4 in the up and down direction. Specifically, the second mounting part 5 may be in a shape of a Chinese character "ri", and the two second mounting parts 5 respectively pass through from two openings. A set of second linear guide rails 5a are fixedly connected to the outer walls of the two second mounting parts 5 close to each other, and the mounting slider matching with the second linear guide rails 5a is fixedly connected to the second mounting part 5.

[0037] Please refer to Figure 5 , A plurality of pneumatic suction nozzles 5b are provided on each second mounting part 5, and the number of pneumatic suction nozzles 5b is the same as the number of electromagnets 2. Each pneumatic suction nozzle 5b is equipped with a compression spring 5c, and the compression spring 5c limits the pneumatic suction nozzle 5b to the lower side. Specifically, the second mounting part 5 is provided with a stepped through hole 5d corresponding to each pneumatic suction nozzle 5b. The stepped through hole 5d includes an upper hole with a smaller aperture and a lower hole with a larger aperture; a linear bearing 5e for the pneumatic suction nozzle 5b to slide is fixedly connected in the upper hole; a limiting block 5b1 is fixedly connected to the part of the pneumatic suction nozzle 5b exceeding the second mounting part 5, and a stop block 5b2 is also fixedly connected to the part of the pneumatic suction nozzle 5b in the lower hole; the spring is sleeved on the pneumatic suction nozzle 5b, and the two ends respectively abut against the annular end surface of the stepped through hole 5d and the stop block 5b2, so that the limiting block 5b1 abuts against the second mounting part 5 downward.

[0038] Please refer to Figure 4Optionally, the stopper 5b1 can be adjusted to a fixed position on the pneumatic suction head 5b. Specifically, the outer wall of the pneumatic suction head 5b can have a threaded section, and the stopper 5b1 can be threadedly connected to the threaded section. In this way, the position of the lower limit of the pneumatic suction head 5b can be fine-tuned by the stopper 5b1.

[0039] Both sides of each second mounting portion 5 are further provided with guide wheels 5f that match the slide groove 1c, that is, through the cooperation of the guide wheels 5f and the slide groove 1c, the two second mounting portions 5 can slide up and down while the first mounting portion 4 slides horizontally.

[0040] See also Figure 2 The cylinder 6 is used to drive the first mounting portion 4 to slide. When the piston rod of the cylinder 6 is in the extended position, one of the second mounting portions 5 corresponds to the first high position, at which point the multiple pneumatic suction heads 5b on that second mounting portion 5 are inactive. The other second mounting portion 5 corresponds to the lowered position, at which point the multiple pneumatic suction heads 5b on that second mounting portion 5 are active, used to pick up electronic components. When the piston rod is in the retracted position, the second mounting portion 5 in the first high position enters the lowered position, and the second mounting portion 5 in the lowered position enters the second high position. In other words, the cylinder 6 allows the multiple pneumatic suction heads 5b on the two second mounting portions 5 to alternately enter the active position.

[0041] Optionally, the chute 1c includes a first groove 1c1 and a second groove 1c2. The adjacent ends of the first groove 1c1 and the second groove 1c2 correspond to the lower position of the chute 1c, and are staggered vertically. In this way, the adjacent ends of the first groove 1c1 and the second groove 1c2 can be used as hard limits, more conveniently and stably determining the extension and retraction limits of the piston rod of the cylinder 6.

[0042] Furthermore, the cylinder body of the cylinder 6 is hinged to the connecting seat 1, and the piston rod is hinged to the first mounting portion 4. In this way, space can be more reasonably utilized.

[0043] For the second mounting portion 5 at a low position, its multiple pneumatic suction heads 5b correspond one to one to multiple electromagnets 2. The pneumatic suction heads 5b can be adsorbed to the upper limit position by the corresponding electromagnets 2, that is, one electromagnet 2 is matched with the compression spring 5c to control the up and down movement of one pneumatic suction head 5b.

[0044] The two material receiving portions 3 are fixed to the connecting seat 1 , corresponding to below the first highest position and the second highest position respectively.

[0045] To briefly describe the operating principle, the placement head is mounted on the SMT machine's two-axis motion module (controlling XY axis movement). When one set of pneumatic suction heads 5b is working, if some electronic components are not picked up or fall off after being picked up, they will be detected as missing components when the SMT head enters the visual inspection module. At this point, the air cylinder 6 puts the other set of pneumatic suction heads 5b into operation, allowing them to directly pick up the next set of electronic components. This set of pneumatic suction heads 5b then goes into inactivity, and the remaining picked up electronic components fall into the corresponding receiving section 3.

[0046] See also Figure 5 Optionally, a two-position three-way reversing valve 1d is provided on the connecting seat 1, which may be a solenoid valve. The main air pipe is connected to the inlet channel of the reversing valve 1d. All the pneumatic suction heads 5b on one second mounting portion 5 are connected to one outlet channel of the reversing valve 1d, and all the pneumatic suction heads 5b on the other second mounting portion 5 are connected to the other outlet channel of the reversing valve 1d. In this way, after the two groups of pneumatic suction heads 5b exchange states, the reversing valve 1d is reversed so that one group of pneumatic suction heads 5b in the working state is connected to the air circuit, and the other pneumatic suction head 5b is disconnected from the air circuit, and the remaining adsorbed electronic components naturally fall off. Compared with using two air circuits to separately control the two groups of pneumatic suction heads 5b, the structure and control can be simpler.

[0047] See also Figure 1 Optionally, each receiving portion 3 includes: a connecting strip 3a fixed to the connecting base 1 and a material slot 3b detachable from the connecting strip 3a. Specifically, the material slot 3b can be fixed to the connecting strip 3a by magnetic attraction. In this way, it is convenient to remove the material slot 3b and clean the electronic components received therein.

Claims

1. A chip placement machine chip placement head, characterized in that: include: The connecting seat (1) has a mounting opening on the bottom surface, and the side plates on both sides of the mounting opening are provided with sliding grooves (1c), the two sides of the sliding groove (1c) are respectively a first high position and a second high position, and the middle of the sliding groove (1c) is a low position; A plurality of electromagnets (2) are arranged on a horizontal inner wall of a mounting opening of the connecting seat (1) along a first direction from one side plate to another side plate; Two material receiving parts (3) are fixedly arranged on the connecting seat (1), respectively corresponding to the lower part of the first high position and the lower part of the second high position; A first mounting portion (4) is horizontally slidably connected to the connecting seat (1) along a second direction perpendicular to the first direction; Two second mounting parts (5) are connected to the first mounting part (4) in an upward and downward sliding manner; each of the second mounting parts (5) is provided with a plurality of pneumatic suction heads (5b) which are limited at the lower side by compression springs (5c); and each of the two side surfaces of the second mounting part (5) is also provided with guide wheels (5f) which are matched with the slide groove (1c); The cylinder (6) drives the first mounting part (4) to slide; when the piston rod is in the extension limit position, one of the second mounting parts (5) corresponds to the first high position, and the other second mounting part (5) corresponds to the low position; when the piston rod is in the retraction limit position, the second mounting part (5) in the first high position enters the low position, and the second mounting part (5) in the low position enters the second high position; for the second mounting part (5) in the low position, its multiple pneumatic suction heads (5b) correspond one by one to the multiple electromagnets (2), and the pneumatic suction heads (5b) can be adsorbed to the upper limit position by the corresponding electromagnets (2).

2. A chip mounter head according to claim 1, characterized in that: The slide groove (1c) comprises: a first groove (1c1) and a second groove (1c2) which are separated; the ends of the first groove (1c1) and the second groove (1c2) which are close to each other correspond to the lower position of the slide groove (1c) and are staggered up and down.

3. A chip mounter head according to claim 1, characterized in that: The limit block (5b1) between the first mounting portion (4) and the pneumatic suction head (5b) can be adjusted to a fixed position on the pneumatic suction head (5b); when the pneumatic suction head (5b) is in the lower limit position, the limit block (5b1) presses downward against the second mounting portion (5).

4. A chip placement machine chip placement head according to claim 2, characterized in that: The cylinder body of the air cylinder (6) is hinged to the connecting seat (1), and the piston rod is hinged to the first mounting portion (4).

5. The chip mounter head according to claim 1, characterized in that: A two-position three-way reversing valve (1d) is provided on the connection seat (1); all the pneumatic suction heads (5b) on one second mounting portion (5) are connected to one outlet channel of the reversing valve (1d); and all the pneumatic suction heads (5b) on another second mounting portion (5) are connected to another outlet channel of the reversing valve (1d).

6. A chip mounter head according to claim 1, characterized in that: Each of the material connection parts (3) comprises: a connection strip (3a) fixed to the connection seat (1) and a material trough (3b) detachable from the connection strip (3a).

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