Automatic feeding mechanism of chip mounter

Abstract

The utility model relates to the technical field of feeding of chip mounters, in particular to an automatic feeding mechanism of a chip mounter, which comprises a clamping frame, two clamping plates, a feeding tray and a driving piece, the two clamping plates are symmetrically arranged in the clamping frame, the opposite sides of the two clamping plates are respectively and fixedly connected with a first elastic plate, and the two clamping plates are arranged in the clamping frame. Clamping plates are arranged on the clamping frame, two second elastic plates are installed on the opposite sides of each clamping plate at intervals, clamping grooves are formed in the two sides of the feeding tray correspondingly, limiting grooves are formed in the inner walls of the two sides of each clamping groove correspondingly, guide faces tangent to the limiting grooves are formed in the inner walls of the limiting grooves, and a driving part is arranged on the clamping frame and is in driving connection with the two clamping plates; the driving part is used for driving the two clamping plates to move oppositely, and when the driving part pushes the clamping plates to move towards the feeding tray, the first elastic plates elastically abut against the inner walls of the corresponding clamping grooves. According to the utility model, under the condition of bidirectional limiting, through a buffer mechanism, the situation that the tray or components are damaged due to mechanical impact is avoided.

Description

An automatic feeding mechanism for a chip mounter Technical Field

[0001] This utility model relates to the field of chip mounter feeding technology, and more specifically, to an automatic feeding mechanism for a chip mounter. Background Technology

[0002] The pick-and-place machine is the core equipment in a surface mount technology (SMT) production line. It automates the assembly of electronic products by precisely picking up, positioning, and placing electronic components to designated positions on the printed circuit board. In the pick-and-place machine's workflow, the automatic feeding mechanism is a key functional module responsible for sequentially transporting components from the tray or tape to the pick-up station. Its positioning accuracy and stability directly affect the placement efficiency and yield.

[0003] In existing feeding mechanisms, single elastic clamping or rigid snap-fit ​​structures are mostly used to solve the problem of tray positioning. However, relying solely on unidirectional elastic clamping cannot effectively limit the movement of the tray. During high-speed movement, the tray is prone to slight displacement due to inertia. When using a rigid snap-fit ​​structure, although bidirectional limiting can be achieved, a buffering mechanism is lacking, which can easily cause damage to the tray or components due to mechanical impact. Therefore, we propose an automatic feeding mechanism for a pick-and-place machine. Summary of the Invention

[0004] Based on the aforementioned technical problems with existing feeding mechanisms, which rely solely on unidirectional elastic clamping and cannot effectively limit the movement of the tray, and are prone to micro-displacement of the tray due to inertia during high-speed movement, and which, while achieving bidirectional limiting with rigid snap-fit ​​structures, lack a buffering mechanism and are susceptible to damage to the tray or components due to mechanical impact, this utility model proposes an automatic feeding mechanism for a chip mounter that, under the condition of bidirectional limiting, avoids damage to the tray or components due to mechanical impact through a buffering mechanism.

[0005] In order to solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic feeding mechanism for a chip mounter, including a clamping frame, two clamping plates, a feeding tray and a driving component;

[0006] Two clamping plates are symmetrically arranged inside the clamping frame. The opposing sides of the two clamping plates are respectively fixedly connected to a first elastic plate, and two second elastic plates are also installed at intervals on the opposing sides of each clamping plate.

[0007] The feeding tray has slots on both sides, and each slot has a limit groove on its inner wall. The inner wall of the limit groove has a guide surface tangent to it.

[0008] The driving component is disposed on the clamping frame and drivenly connected to the two clamping plates, and is used to drive the two clamping plates to move towards each other;

[0009] When the driving component pushes the clamping plate to move to the upper pallet, the first elastic plate forms an elastic abutment with the inner wall of the corresponding slot, and the ends of the two second elastic plates are simultaneously embedded in the corresponding side limiting grooves, forming a bidirectional limiting cooperation with the inner wall of the limiting groove.

[0010] Furthermore, the driving component is a cylinder, which is fixedly installed on the outer wall of the clamping frame, and its output end passes through the clamping frame and is fixedly connected to the clamping plate.

[0011] Furthermore, each end of the clamp is fixedly connected to a sliding rod on its inner wall, and each sliding rod is fitted with a spring on its outer wall, and each sliding rod is slidably connected to a limit sleeve.

[0012] Furthermore, one end of the spring is fixedly connected to the clamping plate, and the other end of the spring is fixedly connected to the limiting sleeve.

[0013] Furthermore, the first elastic plate has an arc-shaped structure, with its protrusion located near the side of the loading tray.

[0014] Furthermore, the ends of the two second elastic plates on the same clamp are bent to form a trumpet-shaped opening structure.

[0015] Furthermore, it also includes a machine body, on which a bracket is fixedly installed. An electric slide rail one is fixedly connected to the outer wall of the bracket. An electric slide rail two is fixedly installed on the sliding part of the electric slide rail one. The sliding part of the electric slide rail two is fixedly connected to the bottom of the clamping frame.

[0016] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0017] This device uses a cylinder to drive two clamping plates to move in opposite directions, causing the second elastic plate to simultaneously embed into the limiting slots on both sides of the card slot, forming a bidirectional elastic clamping. In the initial stage, the elastic plate bends freely to generate a basic clamping force, and the spring is compressed under the guidance of the slide rod to form a buffer. When the elastic plate contacts the limiting sleeve, the spring compression increases, increasing the clamping force. At the same time, it triggers the arc-shaped protrusion of the first elastic plate to contact the inner wall of the card slot, forming a three-point positioning structure. This structure overcomes the instantaneous impact defect of traditional rigid buckles and can avoid damage to the tray or components caused by mechanical impact through a buffering mechanism under bidirectional limiting conditions. Attached Figure Description

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

[0019] Figure 2 is a schematic diagram of the structure of the clamping frame of this utility model;

[0020] Figure 3 is a schematic diagram of the installation structure of the first elastic plate of this utility model;

[0021] Figure 4 is a partial structural schematic diagram of the feeding tray of this utility model.

[0022] In the diagram: 1. Machine body; 2. Electric slide rail one; 3. Bracket; 4. Electric slide rail two; 5. Clamping frame; 6. Cylinder; 7. Clamping plate; 8. Feeding tray; 9. Slot; 10. Limiting slot; 11. Guide surface; 12. First elastic plate; 13. Slide rod; 14. Limiting sleeve; 15. Spring; 16. Second elastic plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4. An automatic feeding mechanism for a chip mounter includes a clamping frame 5, two clamping plates 7, a feeding tray 8, and a driving component.

[0025] Two clamping plates 7 are symmetrically arranged inside the clamping frame 5. The opposing sides of the two clamping plates 7 are respectively fixedly connected to the first elastic plate 12, and two second elastic plates 16 are also installed at intervals on the opposing sides of each clamping plate 7.

[0026] The loading tray 8 has slots 9 on both sides, and each slot 9 has a limit groove 10 on the inner wall of both sides. The inner wall of the limit groove 10 has a guide surface 11 tangent to it.

[0027] The driving component is mounted on the clamping frame 5 and driven to connect with the two clamping plates 7, and is used to drive the two clamping plates 7 to move towards each other.

[0028] When the driving component pushes the clamping plate 7 to move to the upper pallet 8, the first elastic plate 12 forms an elastic abutment with the inner wall of the corresponding slot 9, and the ends of the two second elastic plates 16 are simultaneously embedded in the corresponding side limiting grooves 10, and form a bidirectional limiting cooperation with the inner wall of the limiting grooves 10.

[0029] The first elastic plate 12 and the second elastic plate 16 arranged on the clamping plate 7 form a three-point composite clamping, which improves the stability of the clamping.

[0030] The driving component is a cylinder 6, which is fixedly installed on the outer wall of the clamping frame 5. Its output end passes through the clamping frame 5 and is fixedly connected to the clamping plate 7.

[0031] Both ends of the clamping plate 7 are fixedly connected to the inner walls of the clamping plates 7. Springs 15 are fitted onto the outer walls of the clamping plates 13. Limiting sleeves 14 are slidably connected to the outer walls of the clamping plates 13. One end of each spring 15 is fixedly connected to the clamping plate 7, and the other end is fixedly connected to the limiting sleeve 14. After the two sets of second elastic plates 16 are simultaneously embedded into the limiting grooves 10, symmetrical compressive force is generated through the clamping plates 13 and springs 15, achieving bidirectional rigid limiting in the X / Y axes.

[0032] The first elastic plate 12 has an arc-shaped structure, with its protrusion located near the side of the loading tray 8. The arc-shaped protrusion of the first elastic plate 12 contacts the inner wall of the slot 9 in the later stage of clamping, forming a three-point elastic support and enhancing the Z-direction constraint.

[0033] The ends of the two second elastic plates 16 on the same clamping plate 7 are bent to form a trumpet-shaped opening structure. The trumpet-shaped openings at the ends of the second elastic plates 16 cooperate with the guide surface 11 of the limiting groove 10 to achieve self-centering insertion.

[0034] During initial clamping, the second elastic plate 16 bends freely to generate basic pressure, avoiding rigid collisions; after clamping in place, the spring 15 is compressed to increase the pressure, balancing compliant contact and stable clamping.

[0035] The automatic feeding mechanism of the chip mounter also includes a body 1, on which a bracket 3 is fixedly installed. An electric slide rail 2 is fixedly connected to the outer wall of the bracket 3. An electric slide rail 4 is fixedly installed on the sliding part of the electric slide rail 2. The sliding part of the electric slide rail 4 is fixedly connected to the bottom of the clamping frame 5.

[0036] Working principle: The loading pallet 8 is conveyed into the clamping frame 5. The cylinder 6 pushes the two clamping plates 7 to move towards each other. The second elastic plate 16 on the clamping plate 7 squeezes the inner wall of the slot 9 on the side wall of the loading pallet 8. The second elastic plate 16 bends and its ends abut against the corresponding limiting grooves 10 on both sides of the slot 9.

[0037] During the compression of the second elastic plate 16, the second elastic plate 16 slides along the slide bar 13 and compresses the spring 15 until the second elastic plate 16 abuts against the limiting sleeve 14.

[0038] Continue to compress the second elastic plate 16, increasing or decreasing the elastic compressive force of the second elastic plate 16 on the loading pallet 8, while making the outer wall of the arc-shaped protrusion of the first elastic plate 12 compress the inner wall of the slot 9, thereby further fixing the loading pallet 8 through three-point compression and improving the stability of the loading pallet 8 installation.

[0039] Electric slide rail 1 2 transports the feeding tray 8 upward to the top of the machine body 1, and electric slide rail 2 4 moves the feeding tray 8 to the bottom of the suction nozzle near the machine body 1, where the material is adsorbed through the suction nozzle.

[0040] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding mechanism for a chip mounter, characterized in that, include: A clamping frame (5); two clamping plates (7) are symmetrically arranged inside the clamping frame (5), and a first elastic plate (12) is fixedly connected to the opposing sides of the two clamping plates (7), and two second elastic plates (16) are also installed at intervals on the opposing sides of each clamping plate (7); a loading tray (8), which has slots (9) on both sides, and a limiting groove (10) is opened on the inner wall of each slot (9), and a guide surface tangential to it is opened on the inner wall of the limiting groove (10). 11); A driving component is disposed on the clamping frame (5) and driven to connect with the two clamping plates (7), for driving the two clamping plates (7) to move towards each other; wherein, when the driving component pushes the clamping plate (7) to move to the upper pallet (8), the first elastic plate (12) forms an elastic abutment with the inner wall of the corresponding slot (9), and the ends of the two second elastic plates (16) are simultaneously embedded in the corresponding side limiting groove (10), and form a bidirectional limiting cooperation with the inner wall of the limiting groove (10).

2. The automatic feeding mechanism for a chip mounter according to claim 1, characterized in that: The driving component is a cylinder (6), which is fixedly installed on the outer wall of the clamping frame (5), and its output end passes through the clamping frame (5) and is fixedly connected to the clamping plate (7).

3. The automatic feeding mechanism for a chip mounter according to claim 2, characterized in that: The inner walls of both ends of the clamp (7) are fixedly connected with slide rods (13), and springs (15) are sleeved on the outer walls of the slide rods (13). Limit sleeves (14) are slidably connected to the outer walls of the slide rods (13).

4. The automatic feeding mechanism for a chip mounter according to claim 3, characterized in that: One end of the spring (15) is fixedly connected to the clamp (7), and the other end of the spring (15) is fixedly connected to the limiting sleeve (14).

5. The automatic feeding mechanism for a chip mounter according to claim 4, characterized in that: The first elastic plate (12) has an arc-shaped structure, and its protrusion is located on the side near the loading tray (8).

6. The automatic feeding mechanism for a chip mounter according to claim 5, characterized in that: The ends of the two second elastic plates (16) on the same clamping plate (7) are bent to form a trumpet-shaped opening structure.

7. The automatic feeding mechanism for a chip mounter according to claim 6, characterized in that: It also includes a body (1), on which a bracket (3) is fixedly installed. An electric slide rail (2) is fixedly connected to the outer wall of the bracket (3). An electric slide rail (4) is fixedly installed on the sliding part of the electric slide rail (2). The sliding part of the electric slide rail (4) is fixedly connected to the bottom of the clamping frame (5).

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