Automatic centering guide device of gantry machining center

Abstract

The utility model relates to the technical field of centering and guiding, and discloses an automatic centering and guiding device of a gantry machining center, which comprises a base, a gantry device is arranged in the middle of the outer wall of the base, the inner wall of the base is connected with a workbench in a sliding manner, and the inner bottom wall of the workbench is fixedly connected with a rotating shaft I; a connecting plate is rotatably connected to the outer wall of the first rotating shaft, second rotating shafts are fixedly connected to the left side and the right side of the top wall of the connecting plate, connecting blocks are rotatably connected to the outer walls of the two second rotating shafts, third rotating shafts are rotatably connected to the outer walls of the two connecting blocks, and sliding rails are fixedly connected to the left side and the right side of the inner wall of the workbench. According to the utility model, the sliding block I on the front side is contracted through the cylinders on the two sides on the inner wall of the workbench, so that the sliding block I moves inwards on the sliding rail, the rotating shaft III below the sliding block I contracts the connecting block, and the workpiece can be firmly clamped by moving the sliding block I simultaneously, so that the problems of reduced machining precision and inaccurate measurement cannot be caused.

Description

Technical Field

[0001] This utility model relates to the field of centering and guiding technology, and in particular to an automatic centering and guiding device for a gantry machining center. Background Technology

[0002] A gantry machining center has a gantry frame spanning the worktable. The spindle head is mounted on the crossbeam of the gantry frame and can move laterally along the crossbeam. The worktable moves longitudinally on the bed, and the spindle head can also move vertically along the column, forming a three-axis motion system. This structure gives the machine tool high rigidity and stability, and it can withstand large cutting forces, making it suitable for machining large and heavy parts.

[0003] Automatic centering and guiding devices are key auxiliary systems in gantry machining centers. Through sensors, they monitor the position of workpieces or tools in real time and automatically adjust to the axis of the machining center, reducing manual intervention. This ensures that each workpiece or component can be accurately positioned and assembled, reducing quality problems caused by positional deviations and improving product quality consistency.

[0004] Existing automatic centering and guiding devices can complete the calibration of the workpiece coordinate system in a short time, reducing auxiliary time. However, the workpiece may loosen due to vibration during the movement of the clamping mechanism, affecting the centering accuracy. The existing technology is to set auxiliary support devices, such as adjustable support columns or rollers, at the parts of the workpiece that are prone to shaking or suspended. These devices provide additional support for the workpiece and enhance the overall stability without affecting the processing operation. However, the installation accuracy of the auxiliary support is not high, or the position of the auxiliary support may change due to various factors during use, which will affect the accuracy of the entire structure. For some equipment or structures with high accuracy requirements, this can also lead to a decrease in processing accuracy and inaccurate measurement. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an automatic centering and guiding device for gantry machining centers, which aims to improve the problems of decreased machining accuracy and inaccurate measurement in the prior art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an automatic centering and guiding device for a gantry machining center, comprising a base, a gantry device installed in the middle of the outer wall of the base, a worktable slidably connected to the inner wall of the base, a rotating shaft I fixedly connected to the inner bottom wall of the worktable, a connecting plate rotatably connected to the outer wall of the rotating shaft I, rotating shaft II fixedly connected to the left and right sides of the top wall of the connecting plate, connecting blocks rotatably connected to the outer walls of both rotating shaft II, and rotating shaft III rotatably connected to the outer walls of both connecting blocks. The inner walls of the workbench are fixedly connected to slide rails on both the left and right sides. Slider 1 is slidably connected to the outer walls of the two slide rails. The rotating shaft 3 is fixedly connected to the middle of the bottom wall of slider 1. Cylinders are fixedly connected to the left and right ends of the rear side of the outer wall of slider 1 on the front side. Fixing blocks are fixedly connected to the rear side of the outer wall of the cylinder. The two fixing blocks are fixedly connected to the left and right sides of the middle of the inner bottom wall of the workbench. A sliding groove is opened in the middle of the top wall of the workbench. A replacement mechanism is provided in the middle of the top wall of slider 1. The replacement mechanism is used to replace different models of clamping plates.

[0007] As a further description of the above technical solution:

[0008] The replacement mechanism includes a first half-groove block, which is fixedly connected to the middle of the top wall of a first slider block. A second half-groove block is provided on the right side of the outer wall of the first half-groove block. The first half-groove block and the second half-groove block engage. Circular grooves are provided at the upper and lower ends of the right side of the outer wall of the first half-groove block. A spring is fixedly connected to the left side of the inner wall of the circular groove. Threaded holes are provided in the middle of the right side of the outer walls of both the first and second half-groove blocks. A threaded knob is threadedly connected to the inner wall of the threaded hole. A second slider block is slidably connected to the inner wall of the first half-groove block. A clamping block is fixedly connected to the outer wall of the second slider block.

[0009] As a further description of the above technical solution:

[0010] Both the front and rear sides of the top wall of the base are fixedly connected to baffles, and a safety door is provided in the middle of the front side of the outer wall of the front baffle.

[0011] As a further description of the above technical solution:

[0012] Multiple hinges are equidistantly installed on the left side of the outer wall of the front baffle. Bolts are threaded onto the outer wall of each hinge, and the baffle is rotatably connected to the safety door via the hinges.

[0013] As a further description of the above technical solution:

[0014] A handle is installed on the right end of the middle front side of the outer wall of the safety door.

[0015] As a further description of the above technical solution:

[0016] A support arm is fixedly connected to the lower middle part of the front side of the outer wall of the gantry device, and a controller is rotatably connected to the outer bottom wall of the support arm.

[0017] As a further description of the above technical solution:

[0018] The base has multiple support feet fixedly connected at equal intervals on its outer bottom wall.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the threaded knob is provided with anti-slip texture.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the front slider 1 is retracted by the cylinders on both sides of the inner wall of the worktable, so that the slider 1 moves inward on the slide rail. The rotating shaft 3 under the slider 1 retracts the connecting block. The connecting block rotates on the rotating shaft 2 of the connecting plate, so that the connecting plate rotates on the rotating shaft 1. The rotation of the connecting plate drives the rear connecting block to retract at the same time, so that the slider 1 moves inward at the same time. By moving the slider 1 at the same time, the workpiece can be firmly clamped, and the problem of decreased processing accuracy and inaccurate measurement will not occur.

[0023] 2. In this utility model, firstly, rotate the threaded knob of the second half-groove block. The spring inside the first half-groove block will rebound the second half-groove block, causing the second half-groove block to move to the right. At this time, the protrusion on the second half-groove block will loosen the groove of the second slider on the inner wall of the first half-groove block, and slide the second slider on the clamping block upward. At this time, for workpieces with irregular shapes, different models of clamping blocks can be replaced to center and clamp them, greatly improving practicality. Attached Figure Description

[0024] Figure 1 This is a perspective view of an automatic centering and guiding device for a gantry machining center proposed in this utility model;

[0025] Figure 2 This is a front view of an automatic centering guide device for a gantry machining center proposed in this utility model;

[0026] Figure 3 This is a partial structural diagram of an automatic centering and guiding device for a gantry machining center proposed in this utility model;

[0027] Figure 4 This is a partial structural exploded view of an automatic centering and guiding device for a gantry machining center proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of the replacement mechanism for an automatic centering guide device in a gantry machining center, as proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Changing mechanism; 201. Half-groove block one; 202. Half-groove block two; 203. Circular groove; 204. Spring; 205. Threaded hole; 206. Threaded knob; 207. Slider two; 208. Clamping block; 3. Gantry device; 4. Workbench; 5. Rotating shaft one; 6. Connecting plate; 7. Rotating shaft two; 8. Connecting block; 9. Rotating shaft three; 10. Slider one; 11. Slide rail; 12. Cylinder; 13. Fixing block; 14. Slide groove; 15. Baffle; 16. Safety door; 17. Hinge; 18. Bolt; 19. Handle; 20. Support arm; 21. Controller; 22. Support foot; 23. Anti-slip texture. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of an automatic centering and guiding device for a gantry machining center, comprising a base 1, a gantry device 3 installed in the middle of the outer wall of the base 1 for machining workpieces, a worktable 4 slidably connected to the inner wall of the base 1 for placing workpieces, a rotating shaft 5 fixedly connected to the inner bottom wall of the worktable 4, a connecting plate 6 rotatably connected to the outer wall of the rotating shaft 5 for rotating the rotating shaft 5, a rotating shaft 7 fixedly connected to the left and right sides of the top wall of the connecting plate 6 for driving the connecting plate 6, connecting blocks 8 rotatably connected to the outer walls of both rotating shafts 7 for driving the rotating shafts 7, a rotating shaft 9 rotatably connected to the outer walls of both connecting blocks 8, slide rails 11 fixedly connected to the left and right sides of the inner wall of the worktable 4, a slider 10 slidably connected to the outer walls of both slide rails 11 for sliding the slider 10, and a rotating shaft 9 fixedly connected to the slide rails 11. In the middle of the bottom wall of block 10, slider 10 is used to drive the rotating shaft 39 to move. Cylinder 12 is fixedly connected to the left and right ends of the rear side of the outer wall of the front slider 10. Cylinder 12 is used to push slider 10. Fixing block 13 is fixedly connected to the rear side of the outer wall of cylinder 12. Fixing block 13 is used to fix cylinder 12. Both fixing blocks 13 are fixedly connected to the left and right sides of the middle of the inner bottom wall of the workbench 4. A slide groove 14 is opened in the middle of the top wall of the workbench 4. A replacement mechanism 2 is set in the middle of the top wall of slider 10. The replacement mechanism 2 is used to replace different types of clamps. A support arm 20 is fixedly connected to the lower middle part of the front side of the outer wall of the gantry device 3. The support arm 20 is used to support the controller 21. The controller 21 is rotatably connected to the outer bottom wall of the support arm 20. The controller 21 controls the device according to the information fed back by the sensor. Multiple support feet 22 are fixedly connected at equal intervals to the outer bottom wall of the base 1. The support feet 22 are used for support.

[0033] Specifically, the workpiece is first placed on the worktable 4. The cylinders 12 on both sides of the inner wall of the worktable 4 retract the front slider 10, causing the slider 10 to move inward on the slide rail 11. The rotating shaft 3 9 under the slider 10 retracts the connecting block 8. The connecting block 8 rotates on the rotating shaft 2 7 of the connecting plate 6, causing the connecting plate 6 to rotate on the rotating shaft 1 5. The rotation of the connecting plate 6 drives the rear connecting block 8 to retract simultaneously, causing the slider 10 to move inward simultaneously. By moving the slider 10 simultaneously, the workpiece can be firmly clamped. The support arm 20 is used to fix the controller 21. The controller 21 controls the device according to the information fed back by the sensor. The support foot 22 is used to support the base 1 to prevent slippage.

[0034] Reference Figure 3 and Figure 5The replacement mechanism 2 includes a first half-groove block 201, which is fixedly connected to the middle of the top wall of the first slider 10. A second half-groove block 202 is provided on the right side of the outer wall of the first half-groove block 201. The second half-groove block 202 moves to the right of the first half-groove block 201, and the first half-groove block 201 and the second half-groove block 202 are engaged. Circular grooves 203 are provided at the upper and lower ends of the right side of the outer wall of the first half-groove block 201. The circular grooves 203 are used to accommodate springs 204. The spring 204 is fixedly connected to the left side of the inner wall of the circular groove 203. The spring 204 is used to rebound the second half-groove block 202. Both the outer wall of half-groove block 1 201 and half-groove block 202 have threaded holes 205 on the middle right side. The inner wall of the threaded hole 205 is threaded with a threaded knob 206, which is used to push half-groove block 202 to move. The inner wall of half-groove block 1 201 is slidably connected with a slider 207, which slides in half-groove block 1 201. The outer wall of slider 207 is fixedly connected with a clamping block 208, which is used to center and fix the workpiece. The outer wall of the threaded knob 206 is provided with anti-slip texture 23, which is used to prevent slippage.

[0035] Specifically, first, rotate the threaded knob 206 of the second half-groove block 202. The spring 204 inside the first half-groove block 201 will rebound the second half-groove block 202, causing the second half-groove block 202 to move to the right. At this time, the protrusion on the second half-groove block 202 will release the groove of the second slider 207 on the inner wall of the first half-groove block 201, and slide the second slider 207 on the clamping block 208 upward. At this time, for workpieces with irregular shapes, different models of clamping blocks 208 can be replaced to center and clamp them, greatly improving practicality. The anti-slip texture 23 is used to prevent the threaded knob 206 from slipping when the hand is rotating.

[0036] Reference Figure 1 and Figure 2 The base 1 has baffles 15 fixedly connected to the front and rear sides of the top wall. The baffles 15 are used to protect the safety of the operators and prevent the operators from contacting moving parts and causing danger during the operation of the equipment. A safety door 16 is provided in the middle of the front side of the outer wall of the front baffle 15. The safety door 16 is used to enter the equipment. Multiple hinges 17 are installed at equal intervals on the left side of the front side of the outer wall of the front baffle 15. The hinges 17 are used to fix the safety door 16. Bolts 18 are threadedly connected to the outer wall of the hinges 17. The baffle 15 is rotatably connected to the safety door 16 through the hinges 17. A handle 19 is installed on the right side of the middle of the front side of the outer wall of the safety door 16. The handle 19 is used to open the safety door 16.

[0037] Specifically, the baffle 15 is used to protect the safety of the operator and prevent the operator from contacting moving parts and causing danger during equipment operation. The safety door 16 is used to open the baffle 15 to pick up and put down the workpiece on the workbench 4. The hinge 17 makes the safety door 16 rotate on the baffle 15. The bolt 18 is used to fix the hinge 17 to the baffle 15. The handle 19 is used to open the safety door 16.

[0038] Working principle: First, the workpiece is placed on the worktable 4. The cylinders 12 on both sides of the inner wall of the worktable 4 retract the front slider 10, causing the slider 10 to move inward on the slide rail 11. The rotating shaft 3 9 under the slider 10 retracts the connecting block 8. The connecting block 8 rotates on the rotating shaft 2 7 of the connecting plate 6, causing the connecting plate 6 to rotate on the rotating shaft 1 5. The rotation of the connecting plate 6 drives the rear connecting block 8 to retract at the same time, causing the slider 10 to move inward at the same time. By moving the slider 10 at the same time, the workpiece can be firmly clamped.

[0039] First, rotate the threaded knob 206 of the second half-groove block 202. The spring 204 inside the first half-groove block 201 will rebound the second half-groove block 202, causing the second half-groove block 202 to move to the right. At this time, the protrusion on the second half-groove block 202 will release the groove of the second slider 207 on the inner wall of the first half-groove block 201, and slide the second slider 207 on the clamping block 208 upward. At this time, for workpieces with irregular shapes, different models of clamping blocks 208 can be replaced for centering and clamping, which greatly improves practicality.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic centering and guiding device for a gantry machining center, comprising a base (1), characterized in that: A gantry device (3) is installed in the middle of the outer wall of the base (1). A workbench (4) is slidably connected to the inner wall of the base (1). A rotating shaft (5) is fixedly connected to the inner bottom wall of the workbench (4). A connecting plate (6) is rotatably connected to the outer wall of the rotating shaft (5). A rotating shaft (7) is fixedly connected to the left and right sides of the top wall of the connecting plate (6). A connecting block (8) is rotatably connected to the outer wall of each of the two rotating shafts (7). A rotating shaft (9) is rotatably connected to the outer wall of each of the two connecting blocks (8). A slide rail (11) is fixedly connected to the left and right sides of the inner wall of the workbench (4). 1) The outer wall is slidably connected to a slider one (10), and the rotating shaft three (9) is fixedly connected to the middle of the bottom wall of slider one (10). The left and right ends of the rear side of the outer wall of the front slider one (10) are fixedly connected to cylinders (12). The rear side of the outer wall of the cylinder (12) is fixedly connected to a fixing block (13). The two fixing blocks (13) are fixedly connected to the left and right sides of the middle of the inner bottom wall of the workbench (4). The middle of the top wall of the workbench (4) is provided with a sliding groove (14). The middle of the top wall of slider one (10) is provided with a replacement mechanism (2). The replacement mechanism (2) is used to replace different types of clamps.

2. The automatic centering and guiding device for a gantry machining center according to claim 1, characterized in that: The replacement mechanism (2) includes a first half-groove block (201), which is fixedly connected to the middle of the top wall of the first slider (10). A second half-groove block (202) is provided on the right side of the outer wall of the first half-groove block (201). The first half-groove block (201) and the second half-groove block (202) are engaged. A circular groove (203) is provided at the upper and lower ends of the right side of the outer wall of the first half-groove block (201). A spring (204) is fixedly connected to the left side of the inner wall of the circular groove (203). A threaded hole (205) is provided in the middle of the right side of the outer wall of the first half-groove block (201) and the second half-groove block (202). A threaded knob (206) is threadedly connected to the inner wall of the threaded hole (205). A second slider (207) is slidably connected to the inner wall of the first half-groove block (201). A clamping block (208) is fixedly connected to the outer wall of the second slider (207).

3. The automatic centering and guiding device for a gantry machining center according to claim 1, characterized in that: The base (1) has baffles (15) fixedly connected to the front and rear sides of the top wall, and a safety door (16) is provided in the middle of the front side of the outer wall of the baffle (15).

4. The automatic centering and guiding device for a gantry machining center according to claim 3, characterized in that: Multiple hinges (17) are equidistantly installed on the left side of the outer wall of the front baffle (15). Bolts (18) are threaded onto the outer wall of the hinges (17). The baffle (15) is rotatably connected to the safety door (16) through the hinges (17).

5. The automatic centering and guiding device for a gantry machining center according to claim 4, characterized in that: A handle (19) is installed on the right end of the middle front side of the outer wall of the safety door (16).

6. The automatic centering and guiding device for a gantry machining center according to claim 1, characterized in that: A support arm (20) is fixedly connected to the lower middle part of the front side of the outer wall of the gantry device (3), and a controller (21) is rotatably connected to the bottom wall of the support arm (20).

7. The automatic centering and guiding device for a gantry machining center according to claim 1, characterized in that: The base (1) has multiple support feet (22) fixedly connected at equal intervals on its outer bottom wall.

8. The automatic centering and guiding device for a gantry machining center according to claim 2, characterized in that: The outer wall of the threaded knob (206) is provided with anti-slip texture (23).

Images