Portal frame structure of gantry machining center

Abstract

The utility model discloses a portal frame structure of a portal frame machining center, and aims to solve the technical problem that in the prior art, a steel cable is easy to shake after hoisting a workpiece, so that the workpiece is easy to collide with a portal frame bracket, and the workpiece is damaged. The portal frame structure comprises a portal frame support, a portal lifting beam, an electric hoist and universal wheels, the top of the portal frame support is connected with the portal lifting beam, the electric hoist is installed on the lower side surface of the portal lifting beam, the universal wheels are installed at the bottom of the portal frame support, and an anti-collision mechanism is arranged on the side surface of the portal frame support. An auxiliary supporting mechanism is arranged on the bottom side of the portal frame support. According to the portal frame structure, when a workpiece shakes to the surface of the anti-collision plate, the first guide rod can be driven to slide in the first guide round hole, the anti-collision plate transversely moves to compress the spring strip, at the moment, the spring strip can conduct buffering through the elastic force of the spring strip, and therefore the workpiece can be prevented from directly impacting the surface of the portal frame support.

Description

Technical Field

[0001] The utility model belongs to the technical field of gantry, and particularly relates to a gantry structure of a gantry machining center. Background Technique

[0002] The gantry is a new type of small lifting gantry developed according to the daily production needs of medium and small factories (companies) to move equipment, handle warehouse in and out, lift and repair heavy equipment, and transport materials. It is applicable to manufacturing molds, auto repair factories, mines, civil construction sites and occasions requiring lifting. Commonly used in construction for both material transportation and the up and down movement of construction workers, realizing lifting mechanization. It can reduce labor, lower production and operation costs, and improve work efficiency. However, the existing gantry structure has the following problems during use:

[0003] When the existing gantry structure is in use, an electric hoist can be used to lift and connect workpieces. The electric hoist mainly lifts the workpieces through steel cables and hooks. After the steel cables lift the workpieces, they are prone to shaking, which may cause the workpieces to easily collide with the gantry support, resulting in damage to the workpieces. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a gantry structure of a gantry machining center, which aims to solve the technical problem that after the steel cable lifts the workpiece in the existing technology, it is prone to shaking, which may cause the workpiece to easily collide with the gantry support, resulting in damage to the workpiece.

[0006] (2) Technical Solutions

[0007] To solve the above technical problems, the utility model provides such a gantry structure of a gantry machining center. The gantry structure includes a gantry support, a gantry crane beam, an electric hoist and universal wheels. The top of the gantry support is connected with the gantry crane beam, the lower surface of the gantry crane beam is equipped with the electric hoist, the bottom of the gantry support is equipped with universal wheels, a collision prevention mechanism is arranged on the side surface of the gantry support, and an auxiliary support mechanism is arranged on the bottom side of the gantry support.

[0008] When using the gantry structure of this technical solution, when the workpiece shakes to the surface of the collision prevention plate, it can drive the first guide rod to slide inside the first guide round hole. When the collision prevention plate moves horizontally, it can compress the spring strip. At this time, the spring strip can buffer through its own elastic force, which can avoid the workpiece directly hitting the surface of the gantry support, thus avoiding damage to the workpiece.

[0009] Preferably, the anti-collision mechanism includes a connecting plate, a first guiding round hole, a first guiding rod, a limiting block, an anti-collision plate and a spring strip. The connecting plate is connected to the side surface of the gantry bracket.

[0010] Furthermore, a first guiding round hole is formed on the surface of the connecting plate, and a first guiding rod penetrates through the inside of the first guiding round hole. A limiting block is connected to the end of the first guiding rod. When the anti-collision plate is impacted, it can drive the first guiding rod to slide inside the first guiding round hole, so as to limit the moving direction of the anti-collision plate.

[0011] Moreover, the other end of the first guiding rod is connected with an anti-collision plate. A spring strip is connected between the anti-collision plate and the connecting plate. The spring strip is sleeved on the surface of the first guiding rod. When the anti-collision plate moves horizontally, it can compress the spring strip. At this time, the spring strip can buffer through its own elastic force.

[0012] Moreover, the first guiding rod and the connecting plate form a sliding connection through the first guiding round hole, and the anti-collision plate and the spring strip form an elastic telescopic structure.

[0013] Moreover, the auxiliary support mechanism includes a second guiding round hole, a second guiding rod, an auxiliary support frame and a telescopic rod. A second guiding round hole is formed on the surface of the gantry bracket. When the support frame moves downward, it can drive the second guiding rod to slide inside the second guiding round hole, so as to limit the moving direction of the support frame.

[0014] Furthermore, a second guiding rod penetrates through the inside of the second guiding round hole. The bottom end of the second guiding rod is connected with an auxiliary support frame. A telescopic rod is installed between the auxiliary support frame and the gantry bracket. When the telescopic rod extends, it can drive the auxiliary support frame to move downward, so as to support the gantry bracket through the auxiliary support frame.

[0015] Moreover, the second guiding rod and the gantry bracket form a sliding connection through the second guiding round hole, and the auxiliary support frame and the telescopic rod form a hydraulic lifting structure.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. In the present utility model, when the steel cable shakes during the process of hoisting a workpiece, when the workpiece shakes to the surface of the anti-collision plate, when the anti-collision plate is impacted, it can drive the first guiding rod to slide inside the first guiding round hole. At the same time, when the anti-collision plate moves horizontally, it can compress the spring strip. At this time, the spring strip can buffer through its own elastic force, so as to avoid the workpiece directly hitting the surface of the gantry bracket, thereby avoiding damage to the workpiece;

[0019] 2. When the device of the present utility model is in use, the telescopic rod can be operated. When the telescopic rod operates, it can extend. When the telescopic rod extends, it can drive the auxiliary support frame to move downward. In this way, the gantry support can be assisted by the auxiliary support frame, thereby increasing the stability and safety of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the main structure of a specific embodiment of the device of the present utility model;

[0021] Figure 2 is a schematic diagram of the anti-collision mechanism of a specific embodiment of the device of the present utility model;

[0022] Figure 3 is an exploded view of the anti-collision mechanism of a specific embodiment of the device of the present utility model;

[0023] Figure 4 is a schematic diagram of the auxiliary support mechanism of a specific embodiment of the device of the present utility model;

[0024] Figure 5 is an exploded view of the auxiliary support mechanism of a specific embodiment of the device of the present utility model.

[0025] The reference numerals in the drawings are: 1, gantry support; 2, gantry crane beam; 3, electric hoist; 4, universal wheel; 5, connecting plate; 6, first guiding round hole; 7, first guiding rod; 8, limiting block; 9, anti-collision plate; 10, spring strip; 11, second guiding round hole; 12, second guiding rod; 13, auxiliary support frame; 14, telescopic rod. SPECIFIC EMBODIMENT

[0026] This specific embodiment is a gantry structure of a gantry machining center, and its schematic diagram is as Figures 1-5 shown. The gantry structure includes a gantry support 1, a gantry crane beam 2, an electric hoist 3 and universal wheels 4. The top of the gantry support 1 is connected to the gantry crane beam 2. The lower surface of the gantry crane beam 2 is provided with an electric hoist 3. The bottom of the gantry support 1 is provided with universal wheels 4. An anti-collision mechanism is arranged on the side surface of the gantry support 1, and an auxiliary support mechanism is arranged on the bottom side of the gantry support 1.

[0027] Among them, the anti-collision mechanism includes a connecting plate 5, a first guiding round hole 6, a first guiding rod 7, a limiting block 8, an anti-collision plate 9 and a spring strip 10. The connecting plate 5 is connected to the side surface of the gantry bracket 1. A first guiding round hole 6 is formed on the surface of the connecting plate 5. A first guiding rod 7 penetrates through the inside of the first guiding round hole 6. A limiting block 8 is connected to the end of the first guiding rod 7. The other end of the first guiding rod 7 is connected to an anti-collision plate 9. A spring strip 10 is connected between the anti-collision plate 9 and the connecting plate 5. The spring strip 10 is sleeved on the surface of the first guiding rod 7. The first guiding rod 7 forms a sliding connection with the connecting plate 5 through the first guiding round hole 6. An elastic telescopic structure is formed between the anti-collision plate 9 and the spring strip 10.

[0028] In addition, the auxiliary support mechanism includes a second guiding round hole 11, a second guiding rod 12, an auxiliary support frame 13 and a telescopic rod 14. A second guiding round hole 11 is formed on the surface of the gantry bracket 1. A second guiding rod 12 penetrates through the inside of the second guiding round hole 11. The bottom end of the second guiding rod 12 is connected to an auxiliary support frame 13. A telescopic rod 14 is installed between the auxiliary support frame 13 and the gantry bracket 1. The second guiding rod 12 forms a sliding connection with the gantry bracket 1 through the second guiding round hole 11. A hydraulic lifting structure is formed between the auxiliary support frame 13 and the telescopic rod 14.

[0029] Working principle: When using the device of this technical solution, when the steel cable shakes during the process of lifting the workpiece, when the workpiece shakes to the surface of the anti-collision plate 9, when the anti-collision plate 9 is subjected to an impact force, it can drive the first guiding rod 7 to slide inside the first guiding round hole 6. At the same time, when the anti-collision plate 9 moves horizontally, it can compress the spring strip 10. At this time, the spring strip 10 can buffer through its own elastic force, so as to avoid the workpiece directly hitting the surface of the gantry bracket 1;

[0030] When the device is in use, the telescopic rod 14 can be operated. When the telescopic rod 14 operates, it can extend. When the telescopic rod 14 extends, it can drive the auxiliary support frame 13 to move downward, so that the gantry bracket 1 can be supported by the auxiliary support frame 13, thereby preventing the device from being unstable during the process of lifting the workpiece.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] The above embodiment is a preferred implementation scheme of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of this technical solution is within the protection scope of the present invention.

Claims

1. A gantry structure of a gantry machining center, the gantry structure comprising a gantry support (1), a gantry hanging beam (2), an electric hoist (3) and a universal wheel (4), characterized in that: The top of the gantry bracket (1) is connected to a gantry beam (2), an electric hoist (3) is installed on the lower surface of the gantry beam (2), a universal wheel (4) is installed on the bottom of the gantry bracket (1), an anti-collision mechanism is arranged on the side surface of the gantry bracket (1), and an auxiliary support mechanism is arranged on the bottom side of the gantry bracket (1).

2. The gantry structure of a gantry machining center according to claim 1, characterized in that: The anti-collision mechanism comprises a connecting plate (5), a first guide circular hole (6), a first guide rod (7), a limit block (8), an anti-collision plate (9) and a spring bar (10); the connecting plate (5) is connected to the side surface of the gantry bracket (1).

3. The gantry structure of a gantry machining center according to claim 2, characterized in that: A first guide circular hole (6) is provided on the surface of the connecting plate (5), a first guide rod (7) penetrates the interior of the first guide circular hole (6), and an end of the first guide rod (7) is connected to a limiting block (8).

4. The gantry structure of a gantry machining center according to claim 3, characterized in that: The other end of the first guide rod (7) is connected to an anti-collision plate (9), a spring bar (10) is connected between the anti-collision plate (9) and the connecting plate (5), and the spring bar (10) is sleeved on the surface of the first guide rod (7).

5. The gantry structure of a gantry machining center according to claim 4, characterized in that: The first guide rod (7) is slidably connected to the connecting plate (5) via the first guide circular hole (6), and an elastic telescopic structure is formed between the anti-collision plate (9) and the spring bar (10).

6. The gantry structure of a gantry machining center according to claim 1, characterized in that: The auxiliary support mechanism comprises a second guide circular hole (11), a second guide rod (12), an auxiliary support frame (13) and a telescopic rod (14); the second guide circular hole (11) is provided on the surface of the gantry bracket (1).

7. The gantry structure of a gantry machining center according to claim 6, characterized in that: A second guide rod (12) passes through the interior of the second guide circular hole (11); the bottom end of the second guide rod (12) is connected to an auxiliary support frame (13); and a telescopic rod (14) is installed between the auxiliary support frame (13) and the gantry bracket (1).

8. The gantry structure of a gantry machining center according to claim 7, characterized in that: The second guide rod (12) is slidably connected to the gantry bracket (1) via the second guide circular hole (11), and a hydraulic lifting structure is formed between the auxiliary support frame (13) and the telescopic rod (14).

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