Lightweight chip mounter gantry

Abstract

The utility model discloses a lightweight chip mounter gantry which comprises a gantry crossbeam, connecting seats are arranged on the left side and the right side of the gantry crossbeam, the connecting seats are connected with a longitudinal beam assembly, and the gantry crossbeam and the connecting seats are of hollow structures. The light-weight gantry of the chip mounter provided by the utility model is large in size, good in anti-shearing force, hollow in interior, provided with reinforcing ribs, light in weight and high in overall strength, so that the deformation is small, and the stability is good; and meanwhile, due to the same section shape, the aluminum extrusion forming process is suitable, the later processing is less, the production cost is low, the length is randomly adjustable, and different machines are conveniently used.

Description

Technical Field

[0001] The utility model relates to the technical field of chip mounters, in particular to a lightweight chip mounter gantry. Background Art

[0002] The X and Y axes of the placement machine usually adopt a gantry structure. When the placement machine is working, the gantry needs to reciprocate continuously. The larger the mass of the gantry, the more acceleration and deceleration time is required when starting and stopping. Otherwise, it will have an impact on the placement machine, resulting in reduced working accuracy and stability, and even shortening the service life of the placement machine.

[0003] In order to reduce the weight of the gantry, traditional placement machines generally use aluminum alloy to make the gantry. Considering that aluminum alloy is relatively soft, in order to ensure good structural strength, most of them are made of solid aluminum substrate through CNC machine tools. For areas where stress is more concentrated, additional reinforcing ribs are designed for reinforcement to minimize deformation.

[0004] This gantry design is widely used in medium- and high-speed placement machines and below, but if you want to further increase the placement speed, this structure is still too thick and heavy. In addition, the processing process is complicated, resulting in high costs. Utility Model Content

[0005] In order to further reduce the weight while ensuring the strength and to achieve a higher strength-to-weight ratio for the SMT gantry, the utility model proposes a lightweight SMT gantry.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A lightweight placement machine gantry comprises a gantry crossbeam. Connecting seats are arranged on the left and right sides of the gantry crossbeam. The connecting seats are connected to a longitudinal beam assembly. Both the gantry crossbeam and the connecting seats are hollow structures.

[0008] As a further improvement of the above technical solution:

[0009] Preferably, X-shaped reinforcing ribs are provided inside the gantry crossbeam.

[0010] Preferably, the connecting seat is a double-layer hollow structure, and oblique reinforcing ribs are arranged in each layer of the connecting seat.

[0011] Preferably, the connecting seat and the oblique reinforcing rib are integrally formed.

[0012] Preferably, one side of the gantry beam is provided with an X-axis guide rail which is distributed up and down and parallel, a mounting plate which is slidably connected to the X-axis guide rail, an X-axis screw is rotatably installed on the gantry beam, the X-axis screw is threadedly connected to the mounting plate, and one end of the X-axis screw is connected to an X-axis servo motor installed on a connecting seat.

[0013] Preferably, the longitudinal beam assembly includes a gantry longitudinal beam, a Y-axis guide rail arranged on the upper surface of the gantry longitudinal beam, a Y-axis screw rotatably arranged on the upper surface of the gantry longitudinal beam and parallel to the Y-axis guide rail, one end of the Y-axis screw is connected to a Y-axis servo motor fixedly arranged on the upper end of the gantry longitudinal beam, a sliding block slidably connected to the Y-axis guide rail is arranged at the lower end of the connecting seat, a driving support foot is arranged on the side of the connecting seat, and the driving support foot is threadedly connected to the Y-axis screw.

[0014] Preferably, the driving foot and the connecting seat are integrally formed.

[0015] Compared with the existing technology, the beneficial effects of the utility model are:

[0016] The utility model has a large volume, good shear resistance, a hollow interior, a reinforcing rib, a light weight, and a high overall strength, so the deformation is small and the stability is good;

[0017] At the same time, due to the same cross-sectional shape, it is suitable for aluminum extrusion molding technology, with less post-processing, low production cost, and the length can be adjusted arbitrarily, which is convenient for use in different machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the gantry beam of the utility model;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting seat of the utility model.

[0021] In the figure: 1. Gantry crossbeam; 2. Connecting seat; 3. Gantry longitudinal beam; 4. X-shaped reinforcing ribs; 5. Oblique reinforcing ribs; 6. X-axis guide rail; 7. Mounting plate; 8. X-axis screw; 9. X-axis servo motor; 10. Y-axis guide rail; 11. Y-axis screw; 12. Y-axis servo motor; 13. Slider; 14. Driving foot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] This technical solution specifically includes the following components:

[0025] Please refer to the attached Figure 1 With attached Figure 2 As shown, the specific structure of the beam part is as follows: the gantry beam 1 is a hollow structure, the cross section of the gantry beam 1 is square, and X-shaped reinforcement ribs 4 are arranged inside the gantry beam 1. At the same time, X-axis guide rails 6 distributed vertically and parallel are arranged on one side of the gantry beam 1, and a mounting plate 7 is slidably connected to the X-axis guide rail 6. An X-axis screw 8 is rotatably installed on the gantry beam 1, and the X-axis screw 8 is threadedly connected to the mounting plate 7.

[0026] Please refer to the attached Figure 1 As shown, the specific structure of the longitudinal beam part is as follows: the gantry longitudinal beam 3 is located on the left and right sides of the gantry cross beam 1, and a Y-axis guide rail 10 is arranged on the upper surface of the gantry longitudinal beam 3. A Y-axis screw 11 is rotatably arranged on the upper surface of the gantry longitudinal beam 3, and the Y-axis screw 11 is parallel to the Y-axis guide rail 10, and one end of the Y-axis screw 11 is connected to a Y-axis servo motor 12 fixedly arranged on the upper end of the gantry longitudinal beam 3.

[0027] Please refer to the attached Figure 3 As shown, the two ends of the gantry cross beam 1 are connected to the gantry longitudinal beam 3 through a connecting seat 2. The specific structure of the connecting seat 2 is as follows: the connecting seat 2 is a hollow structure, and the connecting seat 2 is an upper and lower double-layer hollow structure. Each layer of the connecting seat 2 is provided with an oblique reinforcing rib 5, and a driving support foot 14 is provided on the side of the connecting seat 2. The connecting seat 2, the oblique reinforcing rib 5, and the driving support foot 14 are integrally formed and processed later;

[0028] The driving support foot 14 is threadedly connected with the Y-axis screw rod 11, and driven by the Y-axis servo motor 12, controls the forward and backward movement of the gantry beam 1. At the same time, a slider 13 is provided at the lower end of the connecting seat 2, and the slider 13 is slidably connected with the Y-axis guide rail 10;

[0029] An X-axis servo motor 9 is fixedly mounted on the connecting seat 2 . The X-axis servo motor 9 and the X-axis screw 8 are driven by the X-axis servo motor 9 to move the mounting plate 7 left and right.

[0030] The core of this technical solution is that the gantry beam 1 and the connecting seats 2 at both ends of the gantry beam 1 are hollow structures, and the installation methods of the related linear guides, screws, motors, etc. have been redesigned. While reducing the weight, the strength remains unchanged and the stability is good.

[0031] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A lightweight SMT gantry, comprising a gantry beam (1), wherein the gantry beam (1) is provided with connecting seats (2) on both sides thereof, wherein the connecting seats (2) are slidably connected to a Y-axis guide rail (10) on a longitudinal beam assembly, wherein: The gantry cross beam (1) and the connecting seat (2) are both hollow structures; an X-shaped reinforcing rib (4) is arranged inside the gantry cross beam (1), and an oblique reinforcing rib (5) is arranged inside the connecting seat (2).

2. The lightweight placement machine gantry according to claim 1, characterized in that: The connection seat (2) is a double-layer hollow structure, and each layer of the connection seat (2) is provided with an oblique reinforcing rib (5).

3. The lightweight SMT gantry according to claim 2, characterized in that: The connecting seat (2) and the oblique reinforcing rib (5) are integrally formed.

4. The lightweight placement machine gantry according to claim 1, characterized in that: One side of the gantry crossbeam (1) is provided with an X-axis guide rail (6) which is distributed vertically and parallel to the other side, a mounting plate (7) which is slidably connected to the X-axis guide rail (6), an X-axis screw rod (8) which is rotatably mounted on the gantry crossbeam (1), the X-axis screw rod (8) being threadedly connected to the mounting plate (7), and one end of the X-axis screw rod (8) being connected to an X-axis servo motor (9) which is mounted on the connecting seat (2).

5. The lightweight SMT gantry according to claim 1, characterized in that: The longitudinal beam assembly comprises a gantry longitudinal beam (3), a Y-axis guide rail (10) arranged on the upper surface of the gantry longitudinal beam (3), a Y-axis screw rod (11) rotatably arranged on the upper surface of the gantry longitudinal beam (3) and parallel to the Y-axis guide rail (10), one end of the Y-axis screw rod (11) is connected to a Y-axis servo motor (12) fixedly arranged on the upper end of the gantry longitudinal beam (3), a slider (13) slidably connected to the Y-axis guide rail (10) is arranged at the lower end of the connecting seat (2), and a driving support foot (14) is arranged on the side of the connecting seat (2), and the driving support foot (14) is threadedly connected to the Y-axis screw rod (11).

6. The lightweight SMT gantry according to claim 5, characterized in that: The driving support foot (14) and the connecting seat (2) are integrally formed.

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