Scratch-proof electric lifting device for feeding

Abstract

The utility model discloses a kind of feeding scratch-preventing electric lifting devices, including front bed and rear bed, the upper workbench and lower workbench are respectively provided in front bed and rear bed, the lower portion of the lower workbench is provided with lifting assembly that workpiece can be lifted upwards to prevent workpiece scratch;The lifting assembly includes lifting frame and lifting drive that controls the synchronous lifting of both ends of lifting frame;The utility model adopts four groups of rigid lifting chain, realizes four groups of lifting chain synchronous lifting by the transmission structure formed by transmission sprocket and transmission chain, which makes workpiece part can be smoothly and synchronously lifted, avoids workpiece lifting type to be skewed due to uneven stress, thereby avoiding skewed workpiece to be scratched by pointed end face when contacting workbench, lifting drive is concentrated in bed bottom, and rigid lifting chain is used to realize lifting, due to the telescopic characteristics of rigid lifting chain, the driving structure is small in height direction.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting equipment technology, specifically to an electric lifting device for preventing scratches during material feeding. Background Technology

[0002] A high-low interchangeable-table laser cutting machine is a cutting machine with two worktables. The worktables are supported by iron plates with pointed tips. Since the pointed tips are the working surfaces, the worktables may collide and shift when manually placed on the worktables, and the surface of the worktables may be dented or scratched. Therefore, a lifting device is usually installed at the bottom of the high-low interchangeable-table. When loading, the worktables are lifted to remove them from the working surfaces with pointed tips. After the worktables are positioned on the lifting device, they are reset by the lifting device to place the worktables stably.

[0003] A search revealed a scratch-resistant device for loading onto a double worktable, disclosed in patent application publication number CN221494711U. The device includes a rear base and a protective device body mounted on the rear base. The protective device body includes a support mechanism and two sets of lifting mechanisms for driving the support mechanism to move upward or downward. Each set of lifting mechanisms includes a cylinder and a fixing component. The piston rod end of the cylinder is connected to the driving component. Guide mechanisms for horizontal movement of the support mechanism are installed on both sides of the cylinder.

[0004] The aforementioned patent uses cylinders installed on both sides of the protective device to lift it. Since it is difficult to synchronize the movement of multiple sets of cylinders, tilting is likely to occur during the lifting process. Furthermore, due to the compressibility of gas, uneven loading of the plates can lead to uneven force on the cylinders, resulting in tilting of the device. When the cylinders reset, the tilted workpiece can easily cause scratches when it comes into contact with the sharp point on the worktable. Utility Model Content

[0005] The purpose of this utility model is to provide a feeding anti-scratch electric lifting device. By setting four sets of rigid lifting chains instead of the traditional multiple sets of cylinders, the rigid lifting chains use transmission sprockets and transmission chains to control the synchronous rotation of the rotating shaft, thereby realizing the synchronous lifting of the four sets of lifting chains. This method allows the workpiece to be lifted smoothly and synchronously, avoiding the workpiece from tilting due to uneven force during lifting, thus preventing the tilted workpiece from being scratched by the sharp surface when it comes into contact with the worktable.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a feeding anti-scratch electric lifting device, comprising a front base and a rear base, wherein an upper worktable and a lower worktable are respectively provided in the front base and the rear base, and a lifting component capable of lifting the workpiece upward to prevent the workpiece from being scratched is provided below the lower worktable.

[0007] The lifting assembly includes a lifting frame and a lifting drive that controls the synchronous lifting of both ends of the lifting frame; a support structure is fixed above the lifting frame.

[0008] The lifting drive includes a geared motor and a drive shaft fixed to the output end of the geared motor. A rigid lifting chain is installed at the bottom of the rear base by screws, and the top of the rigid lifting chain is fixedly connected to the lifting frame.

[0009] Preferably, the rigid lifting chain is provided in four sets, and the four sets of rigid lifting chains are respectively installed at the four corners of the bottom of the rear engine block.

[0010] Preferably, the lifting drive also includes a transmission structure that enables the four sets of rigid lifting chains to lift synchronously;

[0011] The transmission structure includes a transmission sprocket and a transmission chain. One end of the transmission shaft is fixedly connected to one end of the shaft of the rigid lifting chain via a coupling. The other end of the transmission sprocket is fixedly connected to the shaft of the rigid lifting chain. The transmission chain is connected to the outside of two sets of the rigid lifting chains located on the same side.

[0012] Preferably, the lifting drive further includes a guide structure capable of guiding the lifting frame to lift;

[0013] The guide structure includes linear slide rails and sliders. There are six sets of linear slide rails and sliders. The six sets of linear slide rails are symmetrically installed on both sides of the rear base. The sliders are slidably connected to the linear slide rails. One side of the slider is fixed to a fixing component by screws. The lifting frame is fixedly connected to the fixing component.

[0014] Preferably, the electric lifting device for preventing scratches on the double worktable also includes tension sprockets that can tension the transmission chain, and two sets of tension sprockets are engaged in each set of the transmission chain.

[0015] Preferably, the lifting structure includes a bracket fixed on the lifting frame, and the upper surface of the bracket is equipped with several sets of omnidirectional balls.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model adopts four sets of rigid lifting chains. Through the transmission structure composed of transmission sprockets and transmission chains, the four sets of lifting chains are raised and lowered synchronously. This method enables the workpiece to be raised smoothly and synchronously, avoiding the workpiece from tilting due to uneven force during lifting, thereby preventing the tilted workpiece from being scratched by the sharp surface when it comes into contact with the worktable.

[0018] 2. Several sets of ball bearings are installed on the upper surface of the bracket in the lifting structure of this utility model. When placing and adjusting the board, the ball bearings can reduce the friction between the board and the bracket, avoid scratches on the surface of the board due to friction, and further play a role in preventing scratches and protecting the surface quality of the board.

[0019] 3. The lifting drive of this utility model is concentrated at the bottom of the base and uses a rigid lifting chain to achieve lifting. Due to the extensibility of the rigid lifting chain, the drive structure occupies a small area in the height direction and is more compact. Attached Figure Description

[0020] Figure 1 This is an isometric drawing of this utility model;

[0021] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a schematic diagram of the position of the lifting drive of this utility model;

[0023] Figure 4 This is a schematic diagram of the lifting drive structure of this utility model;

[0024] Figure 5 This is a utility model Figure 3 Enlarged view of point B in the middle;

[0025] Figure 6 This is a cross-sectional schematic diagram of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of this utility model when it is used on the high and low interchange platform of a laser cutting machine.

[0027] In the diagram: 1. Front base; 2. Rear base; 3. Upper worktable; 4. Lower worktable; 5. Lifting frame; 6. Lifting drive; 7. Lifting structure;

[0028] 601. Gear motor; 602. Drive shaft; 603. Rigid lifting chain; 604. Drive sprocket; 605. Drive chain; 606. Linear guide rail; 607. Slider; 608. Fixing component; 609. Tensioner sprocket;

[0029] 701. Bracket; 702. Omnidirectional ball. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-7 This utility model provides a technical solution: a feeding anti-scratch electric lifting device, including a front base 1 and a rear base 2. An upper worktable 3 and a lower worktable 4 are respectively arranged in the front base 1 and the rear base 2. The front base 1 and the rear base 2 are used to independently install the upper worktable 3 and the lower worktable 4, providing conditions for the upper worktable 3 and the lower worktable 4 to work alternately. A lifting component is arranged below the lower worktable 4 to lift the workpiece upward to prevent the workpiece from being scratched. The lifting component is installed below the lower worktable 4, but is not connected to the lower worktable 4. When the lifting component rises, it extends upward through the gap on the table surface of the lower worktable 4 to lift the workpiece on the table surface of the lower worktable 4.

[0032] The lifting assembly includes a lifting frame 5 and a lifting drive 6 that controls the synchronous lifting of both ends of the lifting frame 5. A lifting structure 7 is fixed above the lifting frame 5. After the lifting drive 6 is started, the lifting frame 5 rises upward, and the lifting frame 5 drives the lifting structure 7 to move upward. It extends upward through the gap on the lower worktable 4 and lifts the workpiece away from the tip support surface of the lower worktable 4. When the workpiece position is adjusted at this time, since the workpiece does not contact the lower worktable 4, it can avoid the workpiece directly contacting the tip and causing scratches.

[0033] like Figure 7 As shown, the surfaces of the upper worktable 3 and the lower worktable 4 are set with a serrated shape due to processing requirements. If the workpiece is lifted upwards and removed from the lower worktable 4, and then its position is adjusted, the workpiece will not be scratched.

[0034] The lifting drive 6 includes a reduction motor 601 and a transmission shaft 602 fixed to the output end of the reduction motor 601. A rigid lifting chain 603 is installed at the bottom of the rear base 2 by screws, and the top of the rigid lifting chain 603 is fixedly connected to the lifting frame 5.

[0035] The geared motor 601 transmits power to the rigid lifting chain 603 through the drive shaft 602. The rigid lifting chain 603 extends and retracts to drive the lifting frame 5 to rise and fall. The screw fixing method ensures that the lifting frame 5 and the rigid lifting chain 603 are firmly installed.

[0036] The rigid lifting chain 603 is provided in four sets, and the four sets of rigid lifting chains 603 are respectively installed at the four corners of the bottom of the rear base 2. The rigid lifting chain 603 is a commonly used component in the prior art, which can achieve extension and retraction through the rotation of internal gears, and will not be described in detail. The four sets of rigid lifting chains 603 correspond to the four support points of the lifting frame 5, and the horizontal stable lifting of the lifting frame 5 is achieved through multi-point synchronous force.

[0037] The lifting drive 6 also includes a transmission structure that enables the four sets of rigid lifting chains 603 to lift synchronously.

[0038] The transmission structure includes a transmission sprocket 604 and a transmission chain 605. One end of the transmission shaft 602 is fixedly connected to one end of the rotating shaft of the rigid lifting chain 603 via a coupling. The other end of the transmission sprocket 604 is fixedly connected to the rotating shaft of the rigid lifting chain 603. The transmission chain 605 is drive-connected to the outside of two sets of rigid lifting chains 603 located on the same side. The geared motor 601 drives the transmission shaft 602 to rotate, which in turn drives the rotating shaft of one set of rigid lifting chains 603 to rotate via the coupling. The transmission sprocket 604 at the other end of the rotating shaft drives the other set of rigid lifting chains 603 on the same side to rotate synchronously via the transmission chain 605, ultimately achieving synchronous extension and retraction of the four sets of lifting chains.

[0039] The lifting drive 6 also includes a guide structure that can guide the lifting frame 5 to lift. The guide structure supplements the guiding function of the rigid lifting chain 603, further preventing the lifting frame 5 from tilting and improving overall stability.

[0040] The guiding structure includes linear slide rails 606 and sliders 607. Six sets of linear slide rails 606 and sliders 607 are provided. The six sets of linear slide rails 606 are symmetrically installed on both sides of the rear base 2. The sliders 607 are slidably connected to the linear slide rails 606. One side of each slider 607 is fixed with a fixing member 608 by screws. The lifting frame 5 is fixedly connected to the fixing member 608. The lifting frame 5 is connected to the sliders 607 via the fixing member 608. When the sliders 607 slide along the linear slide rails 606, the lifting frame 5 is restricted to moving only in the vertical direction to prevent horizontal deviation.

[0041] The electric lifting device for preventing scratches during loading also includes tension sprockets 609 that can tension the drive chain 605. Each set of drive chains 605 has two sets of tension sprockets 609 engaged. The tension sprockets 609 engage with the drive chain 605, and by adjusting their position, the chain is kept taut, preventing transmission lag or tooth skipping caused by chain loosening.

[0042] The lifting structure 7 includes a bracket 701 fixed on the lifting frame 5, and several sets of universal balls 702 are installed on the upper surface of the bracket 701.

[0043] When in use, when a workpiece needs to be placed, the geared motor 601 starts and drives a set of rigid lifting chains 603 to rotate through the transmission shaft 602 and coupling. The transmission sprocket 604 on the same side drives another set of lifting chains to rotate synchronously through the transmission chain 605, and the four sets of rigid lifting chains 603 extend at the same time.

[0044] The rigid lifting chain 603 pushes the lifting frame 5 to rise. The lifting frame 5 moves vertically along the guide structure of the linear slide rail 606 and the slider 607. The lifting structure 7 rises synchronously with the lifting frame 5 until the universal ball 702 on the bracket 701 contacts the workpiece and lifts it away from the tip support surface of the lower worktable 4.

[0045] Workers use the 702 omnidirectional ball to adjust the workpiece to the appropriate position, reducing friction and scratches;

[0046] After adjustment, the geared motor 601 reverses, the rigid lifting chain 603 retracts, the lifting frame 5 drives the workpiece to descend until the workpiece is placed stably on the tip support surface of the lower worktable 4, and the lifting assembly resets.

[0047] When the upper workbench 3 is processing, the lower workbench 4 can be prepared for loading at the same time. Continuous operation can be achieved by switching between high and low levels. The interchangeable structure of the high and low level interchange table and the tensioning sprocket 609 are common technical means in the prior art. The high and low level interchange table is not the object of protection of this application and will not be described in detail.

[0048] 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. A material feeding anti-scratch electric lifting device, characterized in that: It includes a front base (1) and a rear base (2), and an upper worktable (3) and a lower worktable (4) are respectively provided in the front base (1) and the rear base (2). A lifting component that can lift the workpiece upward to prevent the workpiece from being scratched is provided below the lower worktable (4). The lifting assembly includes a lifting frame (5) and a lifting drive (6) that controls the synchronous lifting of both ends of the lifting frame (5). A lifting structure (7) is fixed above the lifting frame (5). The lifting drive (6) includes a geared motor (601) and a transmission shaft (602) fixed at the output end of the geared motor (601). A rigid lifting chain (603) is installed at the bottom of the rear base (2) by screws. The top of the rigid lifting chain (603) is fixedly connected to the lifting frame (5).

2. The electric lifting device for preventing scratches during material feeding according to claim 1, characterized in that: The rigid lifting chain (603) is provided in four sets, and the four sets of rigid lifting chains (603) are respectively installed at the four corners of the bottom of the rear machine base (2).

3. The electric lifting device for preventing scratches during material feeding according to claim 2, characterized in that: The lifting drive (6) also includes a transmission structure that enables the four sets of rigid lifting chains (603) to lift synchronously; The transmission structure includes a transmission sprocket (604) and a transmission chain (605). One end of the transmission shaft (602) is fixedly connected to one end of the shaft of the rigid lifting chain (603) via a coupling. The other end of the transmission sprocket (604) is fixedly connected to the shaft of the rigid lifting chain (603). The transmission chain (605) is connected to the outside of two sets of rigid lifting chains (603) located on the same side.

4. The electric lifting device for preventing scratches during material feeding according to claim 3, characterized in that: The lifting drive (6) also includes a guide structure capable of lifting and guiding the lifting frame (5); The guide structure includes a linear slide rail (606) and a slider (607). There are six sets of linear slide rails (606) and sliders (607). The six sets of linear slide rails (606) are symmetrically installed on both sides of the rear base (2). The slider (607) is slidably connected to the linear slide rail (606). One side of the slider (607) is fixed with a fixing member (608) by screws. The lifting frame (5) is fixedly connected to the fixing member (608).

5. The electric lifting device for preventing scratches during material feeding according to claim 4, characterized in that: It also includes tension sprockets (609) that can tension the drive chain (605), and two sets of tension sprockets (609) are engaged in each set of drive chains (605).

6. The electric lifting device for preventing scratches during material feeding according to claim 1, characterized in that: The lifting structure (7) includes a bracket (701) fixed on the lifting frame (5), and the upper surface of the bracket (701) is equipped with several sets of universal balls (702).

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