Workpiece positioning device of gantry type numerical control cutting machine

Abstract

The utility model relates to the technical field of machining, in particular to a workpiece positioning device of a gantry type numerical control cutting machine, which solves the problem that in the prior art, a workpiece is easy to slide under the action of cutting force, thermal stress and the like, so that the cutting quality is influenced. A workpiece positioning device of a gantry type numerical control cutting machine comprises a containing table, a containing cavity is formed in the top of the containing table, and a longitudinal positioning assembly is arranged in the containing cavity; the longitudinal positioning assembly comprises a baffle, a supporting plate, a limiting sliding groove, a limiting sliding block, a first threaded rod, a first stepping motor, a supporting frame and a fixing rod. The first stepping motor drives the first threaded rod to rotate, and the first threaded rod drives the limiting sliding block, the supporting frame and the fixing rod to move when rotating, so that a workpiece is clamped, the safety and firmness of placement of the workpiece are effectively improved, the workpiece is prevented from shaking in the cutting process, and the cutting quality of the workpiece is improved.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a workpiece positioning device for a gantry CNC cutting machine. Background Technology

[0002] A gantry CNC cutting machine is a type of equipment commonly used in metal processing and other fields. It has a gantry frame structure as its main body and is equipped with a CNC system to precisely control the movement trajectory of the cutting head. The workpiece placement table used with the gantry CNC cutting machine is called the cutting worktable or cutting table. The cutting worktable is generally made of steel plate welded grid. Some grids have triangular teeth on the upper part to reduce the contact area between the platform and the workpiece, so that slag and other waste materials can fall off during the cutting process.

[0003] When using a gantry CNC cutting machine and its matching cutting table, first clean the cutting table and check that all components are functioning properly. Then, place the workpiece to be cut stably on the cutting table. Next, set the cutting parameters in the CNC system and adjust the relevant parameters of the cutting table according to the material and thickness of the workpiece. After confirming that everything is correct, start the equipment. The cutting head of the gantry CNC cutting machine will cut the workpiece according to the preset program. Close monitoring is required during the cutting process. After the cutting is completed, turn off the equipment and wait for the workpiece to cool before disassembling it. Finally, clean the cutting table and perform a quality inspection on the workpiece.

[0004] However, during the cutting process, the workpiece is prone to shaking due to cutting force, thermal stress, etc., which can cause the quality of the cut workpiece to fail to meet the expected settings, resulting in economic losses. Utility Model Content

[0005] The purpose of this invention is to provide a workpiece positioning device for a gantry CNC cutting machine, which solves the problem in the prior art that the workpiece is easily subjected to cutting force, thermal stress, etc., causing slippage and thus affecting the cutting quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A workpiece positioning device for a gantry CNC cutting machine includes a placement table with a placement cavity at the top. A longitudinal positioning assembly is installed inside the placement cavity. The longitudinal positioning assembly includes a baffle, a support plate, a limiting groove, a limiting slider, a threaded rod, a stepper motor, a support frame, and a fixing rod. The baffle is fixedly connected to the rear of the placement cavity. The support plate is fixedly connected to the lower part of the placement cavity in a parallel arrangement. The limiting grooves are symmetrically distributed on the inner wall of the placement cavity. The limiting slider is slidably connected inside the limiting groove. The threaded rod is rotatably connected inside the limiting groove. The stepper motor is fixedly installed at the front end of the placement table. The support frame is fixedly connected between the limiting sliders. The fixing rod is fixedly installed at the bottom of the support frame.

[0008] Preferably, the limiting slider is adapted to the limiting groove and is threadedly connected to the threaded rod, and the output end of the stepper motor is drivenly connected to the threaded rod.

[0009] Preferably, the bottom of the fixing rod is provided with an inclined surface, and the placement cavity is divided into several moving slots due to the installation of the support plate. A transverse positioning component is provided inside the moving slot.

[0010] Preferably, the lateral positioning component includes a second threaded rod, a second stepper motor, a movable slider, a support block, a semi-circular block, and a buffer pad. The second threaded rod is rotatably connected inside the movable groove, and the second stepper motor is drivenly connected to one end of the second threaded rod.

[0011] Preferably, the movable slider is threaded to the outside of the threaded rod two, the support block is fixedly connected to the top of the movable slider, the semicircular block is fixedly connected to the right side of the support block, the buffer pad is fixedly connected to the side surface of the semicircular block, and the right side of the movable slider is provided with a second inclined surface.

[0012] Preferably, the bottom of the placement platform is fixedly connected to support columns in a rectangular array, and the bottom of the support columns is fixedly connected to a support platform.

[0013] This utility model has the following beneficial effects:

[0014] This invention uses a stepper motor to drive a threaded rod to rotate. When the threaded rod rotates, it moves the limiting slider, support frame, and fixing rod to clamp the workpiece. This effectively improves the safety and stability of the workpiece placement, prevents the workpiece from shaking during the cutting process, and improves the cutting quality.

[0015] This invention uses a stepper motor to drive the rotation of a threaded rod, which in turn causes a sliding block to move a support block and a semicircular block within a moving groove, thereby horizontally fixing the workpiece and effectively improving the safety and stability of the workpiece placement. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional front view schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This utility model Figure 1 Enlarged 3D structural diagram of point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of a partial component of the longitudinal positioning assembly of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall three-dimensional bottom view of the present invention;

[0021] Figure 5 This is a three-dimensional structural diagram of a partial component of the lateral positioning assembly of this utility model.

[0022] In the diagram: 1. Placement platform; 2. Placement cavity; 3. Longitudinal positioning component; 4. Inclined surface one; 5. Moving groove; 6. Lateral positioning component; 7. Inclined surface two; 8. Support column; 9. Support platform; 301. Baffle; 302. Support plate; 303. Limiting slide groove; 304. Limiting slider; 305. Threaded rod one; 306. Stepper motor one; 307. Support frame; 308. Fixed rod; 601. Threaded rod two; 602. Stepper motor two; 603. Moving slider; 604. Support block; 605. Semicircular block; 606. Buffer pad. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Reference Figure 1-5 A workpiece positioning device for a gantry CNC cutting machine includes a placement table 1, a placement cavity 2 on the top of the placement table 1, and a longitudinal positioning component 3 inside the placement cavity 2. The longitudinal positioning component 3 includes a baffle 301, a support plate 302, a limiting groove 303, a limiting slider 304, a threaded rod 305, a stepper motor 306, a support frame 307, and a fixing rod 308. The baffle 301 is fixedly connected to the rear part inside the placement cavity 2. The support plate 302 is fixedly connected to the lower part inside the placement cavity 2 in a parallel arrangement. The limiting groove 303 is symmetrically distributed on the inner wall of the placement cavity 2. The limiting slider 304 is slidably connected inside the limiting groove 303. The threaded rod 305 is rotatably connected inside the limiting groove 303. The stepper motor 306 is fixedly installed at the front end of the placement table 1. The support frame 307 is fixedly connected between the limiting sliders 304. The fixing rod 308 is fixedly installed at the bottom of the support frame 307.

[0025] The limiting slider 304 is adapted to the limiting groove 303 and is threadedly connected to the threaded rod 305. The output end of the stepper motor 306 is connected to the threaded rod 305 for transmission.

[0026] The length of the fixed rod 308 is shorter than that of the support frame 307, so it will not interfere with the movement of the support block 604 during movement. The installation of the baffle 301 can block and support the workpiece. The setting of the longitudinal positioning component 3, by starting the stepper motor 306, causes the threaded rod 305 at the output end to rotate. During the rotation of the threaded rod 305, due to the adaptation between the limiting slider 304 and the limiting groove 303, and the threaded connection between the limiting slider 304 and the threaded rod 305, the limiting slider 304 is driven to move in the limiting groove 303. The internal movement of the baffle 301 allows the support frame 307 and the fixing rod 308 to push the workpiece until it abuts against the surface of the baffle 301, thus fixing the workpiece longitudinally. In this invention, the stepper motor 306 drives the threaded rod 305 to rotate, and when the threaded rod 305 rotates, it drives the limiting slider 304, the support frame 307 and the fixing rod 308 to move, thereby clamping the workpiece. This effectively improves the safety and stability of the workpiece placement, avoids the workpiece from shaking during the cutting process, and improves the cutting quality of the workpiece.

[0027] Furthermore, the bottom of the fixing rod 308 is provided with an inclined surface 4, and the placement cavity 2 is divided into several moving slots 5 due to the installation of the support plate 302. The moving slots 5 are provided with a transverse positioning component 6.

[0028] The design of the inclined plane 4 improves the contact with the workpiece surface, thereby enhancing the safety and stability of the fixing rod 308 in fixing the workpiece.

[0029] Furthermore, the lateral positioning component 6 includes a threaded rod 601, a stepper motor 602, a sliding slider 603, a support block 604, a semi-circular block 605, and a buffer pad 606. The threaded rod 601 is rotatably connected inside the moving groove 5, and the stepper motor 602 is drivenly connected to one end of the threaded rod 601.

[0030] The movable slider 603 is threaded to the outside of the threaded rod 601. The support block 604 is fixedly connected to the top of the movable slider 603. The semicircular block 605 is fixedly connected to the right side of the support block 604. The buffer pad 606 is fixedly connected to the side surface of the semicircular block 605. The right side of the movable slider 603 is provided with a slope 7.

[0031] Stepper motor 602 is fixedly installed on the left side of the placement platform 1. The buffer pad 606 protects the workpiece surface. The semi-circular block 605 facilitates contact with the workpiece surface. The lateral positioning component 6, when activated, causes stepper motor 602 to rotate the threaded rod 601 at its output end. Simultaneously, due to the threaded connection between the sliding block 603 and the threaded rod 601, and the adaptation between the sliding block 603 and the sliding groove 5, [the following occurs]. The movable slider 603 is moved, and during the movement, the buffer pad 606 contacts the workpiece and pushes the workpiece until it is pressed against the side wall of the placement cavity 2, thereby fixing the workpiece laterally. In this utility model, the stepper motor 602 drives the threaded rod 601 to rotate, which causes the movable slider 603 to move the support block 604 and the semi-circular block 605 inside the movable groove 5, thereby fixing the workpiece laterally and effectively improving the safety and firmness of the workpiece placement.

[0032] Furthermore, the bottom of the placement platform 1 is fixedly connected to support columns 8 in a rectangular array, and the bottom of the support columns 8 is fixedly connected to support platforms 9.

[0033] The installation of support column 8 supports the placement platform 1, preventing it from being corroded and rusted by moisture. Support platform 9 increases friction with the placement surface, improving the safety and stability of the placement.

[0034] In summary:

[0035] When using it, first place the placement table 1 under the gantry CNC cutting machine, then place the workpiece to be cut inside the placement cavity 2 and start the stepper motor 306.

[0036] Secondly, by starting the stepper motor 306, the stepper motor 306 drives the threaded rod 305 at the output end to rotate. During the rotation of the threaded rod 305, due to the adaptation between the limiting slider 304 and the limiting groove 303, and the threaded connection between the limiting slider 304 and the threaded rod 305, the limiting slider 304 moves inside the limiting groove 303. During the movement, the support frame 307 and the fixing rod 308 can push the workpiece until the workpiece abuts against the surface of the baffle 301, thereby forming a longitudinal fixation of the workpiece.

[0037] Furthermore, stepper motor 602 can be activated, causing the output threaded rod 601 to rotate. While the threaded rod 601 is rotating, the sliding slider 603 moves due to the threaded connection between the sliding slider 603 and the threaded rod 601, and the adaptation between the sliding slider 603 and the sliding groove 5. During the movement, the buffer pad 606 contacts the workpiece and pushes the workpiece until it is pressed against the side wall of the placement cavity 2, thereby forming a lateral fixation of the workpiece.

[0038] Finally, the staff can start the gantry CNC cutting machine to cut the positioned workpiece.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A workpiece positioning device for a gantry type numerical control cutting machine, comprising a placement table (1), characterized in that, The top of the placement platform (1) is provided with a placement cavity (2), and a longitudinal positioning component (3) is provided inside the placement cavity (2); the longitudinal positioning component (3) includes a baffle (301), a support plate (302), a limiting slide groove (303), a limiting slider (304), a threaded rod (305), a stepper motor (306), a support frame (307), and a fixing rod (308). The baffle (301) is fixedly connected to the rear part inside the placement cavity (2), and the support plate (302) is fixedly connected to the support plate in a parallel arrangement. In the lower part of the placement cavity (2), the limiting slide groove (303) is symmetrically distributed on the inner wall of the placement cavity (2). The limiting slider (304) is slidably connected to the inside of the limiting slide groove (303). The threaded rod (305) is rotatably connected to the inside of the limiting slide groove (303). The stepper motor (306) is fixedly installed at the front end of the placement platform (1). The support frame (307) is fixedly connected between the limiting sliders (304). The fixing rod (308) is fixedly installed at the bottom of the support frame (307).

2. The workpiece positioning device of a gantry type numerical control cutting machine according to claim 1, wherein, The limiting slider (304) is adapted to the limiting slide groove (303) and is threadedly connected to the threaded rod (305). The output end of the stepper motor (306) is connected to the threaded rod (305) in a transmission connection.

3. The work positioning device of the gantry type numerical control cutting machine according to claim 1, characterized in that, The bottom of the fixed rod (308) is provided with a slope (4), and the placement cavity (2) is divided into several moving slots (5) due to the installation of the support plate (302). A transverse positioning component (6) is provided inside the moving slot (5).

4. The work positioning device of the gantry type numerical control cutting machine according to claim 3, characterized in that, The lateral positioning component (6) includes a threaded rod (601), a stepper motor (602), a sliding block (603), a support block (604), a semicircular block (605), and a buffer pad (606). The threaded rod (601) is rotatably connected inside the sliding groove (5), and the stepper motor (602) is drivenly connected to one end of the threaded rod (601).

5. The work positioning device of the gantry type numerical control cutting machine according to claim 4, characterized in that, The movable slider (603) is threaded to the outside of the threaded rod (601), the support block (604) is fixedly connected to the top of the movable slider (603), the semicircular block (605) is fixedly connected to the right side of the support block (604), the buffer pad (606) is fixedly connected to the side surface of the semicircular block (605), and the right side of the movable slider (603) is provided with a second inclined surface (7).

6. The work positioning device of the gantry type numerical control cutting machine according to claim 1, characterized in that, The bottom of the placement platform (1) is fixedly connected to support columns (8) in a rectangular array, and the bottom of the support columns (8) is fixedly connected to support platforms (9).

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