Gantry saddle belt device

Abstract

The utility model relates to the technical field of gantry machining centers, in particular to a gantry saddle belt device which comprises a gantry machine tool, lifting mechanisms are fixed to the two sides of the top end of the gantry machine tool through bolts, penetrate into the gantry machine tool and are connected between the gantry machine tool in a sliding mode, and horizontal mechanisms are fixed to the top ends of the lifting mechanisms through bolts. And the sliding rod penetrates into the lifting mechanism and is connected to the bottom end of the lifting mechanism in a sliding manner. According to the gantry machine tool lifting mechanism, lifting movement of the supporting cross beam on the gantry machine tool can be completed through mutual cooperation of internal parts of the lifting mechanism, the lifting height of the supporting cross beam on the gantry machine tool is limited through the limiting chain, and the supporting cross beam is prevented from colliding with equipment on the gantry machine tool in the moving process; through mutual cooperation of internal parts of the horizontal mechanism, the connecting saddle can be driven by the auxiliary belt and the second threaded rod to perform limiting sliding at the bottom end of the supporting cross beam.

Description

Technical Field

[0001] This utility model relates to the technical field of gantry machining centers, specifically to a gantry saddle belt device. Background Technology

[0002] A gantry machining center is a machining center whose spindle axis is perpendicular to the worktable, and it is mainly suitable for machining large parts. A saddle is a component used to connect the machine head to the crossbeam of a gantry machine tool. The machine head is fixed to the saddle, and the saddle can move in a certain direction on the machine tool crossbeam, simultaneously moving the machine head so that the machine tool can produce the required parts according to specifications.

[0003] A search revealed a utility model patent with publication number CN210451793U, specifically disclosing a saddle for a gantry machining center, belonging to the technical field of gantry machining centers. This gantry machining center saddle includes a body with a through groove in which a Z-axis lead screw assembly mounting seat is fixedly connected; the inner sidewalls and bottom surface of the through groove have several Z-axis rail mounting positions; the Z-axis lead screw assembly mounting seat has several Z-axis lead screw mounting positions; the body is hollow inside and has several reinforcing ribs welded inside; both the surface of the body and the surface of the reinforcing ribs have several circular and rectangular perforations, significantly reducing the weight of the gantry machining center saddle and enhancing its overall rigidity and bending and torsional strength, maintaining a reasonable load-bearing capacity. Simultaneously, the perforated structure also enhances the heat dissipation capacity of the gantry machining center.

[0004] Although the saddle in the aforementioned patent has several circular and rectangular perforations on both the surface of the saddle and the surface of the reinforcing rib plate, which greatly reduces the weight of the gantry machining center saddle and enhances the overall rigidity and bending and torsional strength, while maintaining a reasonable load-bearing capacity, and the perforated structure also enhances the heat dissipation capacity of the gantry machining center, the existing saddle does not have a limit mechanism when moving on the gantry. This makes it easy for the saddle to collide with the equipment on the gantry machining center when it is used for machining on the gantry, thereby affecting the service life of the equipment on the gantry machining center.

[0005] Therefore, it is necessary to propose a gantry saddle belt device to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a gantry saddle belt device. Through the cooperation between the internal parts of the lifting mechanism and the internal parts of the horizontal mechanism, the lifting and lowering movement of the support beam on the gantry machine tool can be completed. At the same time, the auxiliary belt and the No. 2 threaded rod drive the connecting saddle to slide at the bottom of the support beam. The lifting height of the support beam on the gantry machine tool is limited by the limiting chain, which prevents the support beam from colliding with the equipment on the gantry machine tool during movement. This solves the problem in the prior art that the existing saddle does not have a limiting mechanism when moving on the gantry, which makes it easy for the saddle to collide with the equipment on the gantry machining center when it is used for processing, thus affecting the service life of the gantry machining center equipment.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a gantry saddle belt device, including a gantry machine tool, wherein a lifting mechanism is bolted to both sides of the top of the gantry machine tool and extends through the interior of the gantry machine tool and is slidably connected between the gantry machine tools; a horizontal mechanism is bolted to the top of the lifting mechanism and extends through the interior of the lifting mechanism and is slidably connected to the bottom of the lifting mechanism.

[0008] The lifting mechanism includes multiple servo motors, which are bolted to the top of the gantry machine tool. The output end of each servo motor is mechanically connected to a threaded rod and rotatably connected to the inside of the gantry machine tool. A support beam is sleeved on the outer wall of the threaded rod and slidably connected to the inner wall of the gantry machine tool. A limit rod is mechanically machined on one side of the support beam, which is slidably connected to the inner wall of the gantry machine tool and extends through to the outer wall of the gantry machine tool, and is rotatably connected to the support beam. Auxiliary rods are mechanically machined at both ends of the outer wall of the support beam and slidably connected to the inside of the gantry machine tool. A limit chain is mechanically connected between the side of the limit rod away from the support beam and the outer wall of the gantry machine tool.

[0009] The horizontal mechanism includes a DC motor, which is mounted and fixed at the top of the supporting beam. A transmission box is sleeved on the output end of the DC motor and also mounted and fixed at the top of the supporting beam. A supporting shaft is rotatably connected inside the transmission box and extends into the supporting beam. Transmission bevel gears are machined at the top and bottom of the supporting shaft. A connecting bevel gear is connected to one side of the bottom of the transmission bevel gear and rotatably connected to the inside of the supporting beam. A second threaded rod is mechanically connected to the side of the connecting bevel gear away from the transmission bevel gear and rotatably connected to the inside of the supporting beam. A connecting saddle is sleeved on the outer wall of the second threaded rod and slidably connected to the bottom of the supporting beam. A connecting seat is machined at the top of the connecting saddle and slidably connected to the inside of the supporting beam. Auxiliary belts are mechanically connected to both sides of the outer wall of the connecting seat and sleeved with the outer wall of the supporting shaft.

[0010] Preferably, the inner wall of the gantry machine tool is provided with a lifting groove that matches the supporting crossbeam, the outer wall threads of the multiple No. 1 threaded rods are distributed in opposite directions, and the limiting chain is rotatably connected to the outer wall of the gantry machine tool and the limiting rods respectively through bearings, and is located in the middle position of the outer wall of the gantry machine tool.

[0011] Preferably, the outer walls of the auxiliary rod and the limiting rod are machined with limiting protrusions, and the outer walls of the gantry machine tool are provided with connecting grooves that match the auxiliary rod and the limiting rod, and the inner walls of the connecting grooves are provided with grooves that match the limiting protrusions on the outer walls of the auxiliary rod and the limiting rod.

[0012] Preferably, the outer wall of the supporting beam is provided with a connecting slide rail that matches the connecting saddle, the bottom end of the connecting saddle is provided with a threaded hole that matches the mechanical gripper, and the inner wall of the connecting saddle is provided with an internal thread that matches the external thread of the second threaded rod.

[0013] Preferably, the output end of the DC motor is mechanically connected to a bevel gear, which meshes with the transmission bevel gear. The transmission bevel gear and the connecting bevel gear mesh with each other through tooth grooves. The transmission box and the support beam are both provided with transmission grooves that match the support shaft, the transmission bevel gear, and the connecting bevel gear.

[0014] Preferably, the outer wall of the support shaft is provided with a sleeve groove that matches the auxiliary belt, and the included angle between the support shaft and the auxiliary belt is greater than 120 degrees. The inner wall of the auxiliary belt and the outer wall of the sleeve groove of the support shaft are both provided with matching transmission teeth. The inside of the support beam is provided with a belt groove that matches the connecting seat and the auxiliary belt.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. By starting the servo motor, the servo motor drives the No. 1 threaded rod to rotate. The rotation of the No. 1 threaded rod drives the support beam to move up and down on the gantry machine tool through the thread. This movement of the support beam causes the auxiliary rod and the limit rod to slide on the inner wall of the gantry machine tool. This facilitates the engagement of the limit protrusions on the outer wall of the auxiliary rod and the limit rod with the grooves on the inner wall of the gantry machine tool, allowing the support beam to slide in a limited position on the gantry machine tool. The limit chain is rotatably connected to the outer wall of the gantry machine tool and the limit rod through bearings, and is located in the middle of the outer wall of the gantry machine tool. This allows the limit chain to limit the height of the support beam as it moves up and down on the gantry machine tool, preventing the support beam from falling too low and colliding with the equipment on the gantry machine tool.

[0017] 2. By starting the DC motor, the output end of the DC motor drives the transmission bevel gear to rotate through the bevel gear. The rotation of the transmission bevel gear drives the support shaft to rotate. The rotation of the support shaft drives the connecting bevel gear to rotate through the transmission bevel gear. The rotation of the connecting bevel gear drives the No. 2 threaded rod to rotate. The No. 2 threaded rod drives the connecting saddle to slide at the bottom of the support beam through the thread. At the same time, the rotation of the support shaft drives the auxiliary belt to move through the transmission gear. The auxiliary belt is connected and fixed to the connecting seat. This facilitates the movement of the auxiliary belt and the No. 2 threaded rod to work together to drive the connecting saddle to slide slowly on the support beam, preventing the connecting saddle from sliding too fast and affecting the machining accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the gantry milling machine of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the supporting beam of this utility model;

[0022] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0023] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Gantry milling machine; 2. Lifting mechanism; 201. Servo motor; 202. No. 1 threaded rod; 203. Support beam; 204. Limiting rod; 205. Auxiliary rod; 206. Limiting chain; 3. Horizontal mechanism; 301. DC motor; 302. Transmission box; 303. Support shaft; 304. Transmission bevel gear; 305. Connecting bevel gear; 306. No. 2 threaded rod; 307. Connecting saddle; 308. Connecting seat; 309. Auxiliary belt. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figure 1-5 The gantry saddle belt device shown includes a gantry machine tool 1. A lifting mechanism 2 is bolted to both sides of the top of the gantry machine tool 1 and extends into the interior of the gantry machine tool 1 and is slidably connected between the gantry machine tools 1. A horizontal mechanism 3 is bolted to the top of the lifting mechanism 2 and extends into the interior of the lifting mechanism 2 and is slidably connected to the bottom of the lifting mechanism 2.

[0028] The lifting mechanism 2 includes multiple servo motors 201, which are fixed to the top of the gantry machine tool 1 by bolts. The output end of the servo motor 201 is mechanically connected to a threaded rod 202 and rotatably connected to the inside of the gantry machine tool 1. A support beam 203 is sleeved on the outer wall of the threaded rod 202 and slidably connected to the inner wall of the gantry machine tool 1. A limit rod 204 is mechanically machined on one side of the inner wall of the support beam 203 and extends to the outer wall of the gantry machine tool 1 and is rotatably connected to the support beam 203. Auxiliary rods 205 are mechanically machined at both ends of the outer wall of the support beam 203 and slidably connected to the inside of the gantry machine tool 1. A limit chain 206 is mechanically connected between the side of the limit rod 204 away from the support beam 203 and the outer wall of the gantry machine tool 1.

[0029] The horizontal mechanism 3 includes a DC motor 301, which is mounted and fixed to the top of the supporting beam 203. A transmission box 302 is sleeved on the output end of the DC motor 301 and is also mounted and fixed to the top of the supporting beam 203. A support shaft 303 is rotatably connected inside the transmission box 302 and extends through the interior of the supporting beam 203. Transmission bevel gears 304 are machined at the top and bottom ends of the support shaft 303, respectively. A connecting bevel gear 305 is connected to one side of the bottom end of the transmission bevel gear 304 and rotatably connected to the supporting beam 203. Inside beam 203, a second threaded rod 306 is mechanically connected to the side of the connecting bevel gear 305 away from the transmission bevel gear 304, and is rotatably connected to the inside of the supporting beam 203. A connecting saddle 307 is sleeved on the outer wall of the second threaded rod 306 and is slidably connected to the bottom end of the supporting beam 203. A connecting seat 308 is machined on the top of the connecting saddle 307 and is slidably connected to the inside of the supporting beam 203. Auxiliary belts 309 are mechanically connected to both sides of the outer wall of the connecting seat 308 and are sleeved on the outer wall of the supporting shaft 303.

[0030] Through the cooperation of the internal parts of the lifting mechanism 2, the lifting and lowering movement of the support beam 203 on the gantry machine tool 1 can be completed. The lifting height of the support beam 203 on the gantry machine tool 1 is limited by the limiting chain 206 to prevent the support beam 203 from colliding with the equipment on the gantry machine tool 1 during the movement. Through the cooperation of the internal parts of the horizontal mechanism 3, the connecting saddle 307 can be driven to slide at the bottom of the support beam 203 by the auxiliary belt 309 and the second threaded rod 306.

[0031] Refer to the instruction manual appendix Figure 1-5 The inner wall of the gantry machine tool 1 is provided with a lifting groove that matches the support beam 203. The outer wall threads of multiple No. 1 threaded rods 202 are distributed in opposite directions. The limiting chain 206 is rotatably connected to the outer wall of the gantry machine tool 1 and the limiting rod 204 through bearings, and is located in the middle position of the outer wall of the gantry machine tool 1. The lifting groove provided on the inner wall of the gantry machine tool 1 matches the support beam 203. The outer wall threads of multiple No. 1 threaded rods 202 are distributed in opposite directions, which facilitates the rotation of multiple No. 1 threaded rods 202 to drive the support beam 203 to slide at the upper limit of the gantry machine tool 1.

[0032] Refer to the instruction manual appendix Figure 1-5 The outer walls of the auxiliary rod 205 and the limiting rod 204 are machined with limiting protrusions. The outer walls of the gantry machine tool 1 are provided with connecting grooves that match the auxiliary rod 205 and the limiting rod 204. The inner walls of the connecting grooves are provided with grooves that match the limiting protrusions on the outer walls of the auxiliary rod 205 and the limiting rod 204. By machining the limiting protrusions on the outer walls of the auxiliary rod 205 and the limiting rod 204, and by providing connecting grooves that match the limiting protrusions on the outer walls of the gantry machine tool 1, the supporting beam 203 can slide on the gantry machine tool 1.

[0033] Refer to the instruction manual appendix Figure 1-5 The outer wall of the supporting beam 203 is provided with a connecting slide rail that matches the connecting saddle 307. The bottom end of the connecting saddle 307 is provided with a threaded hole that matches the mechanical gripper. The inner wall of the connecting saddle 307 is provided with an internal thread that matches the external thread of the second threaded rod 306. The connecting slide rail on the outer wall of the supporting beam 203 matches the connecting saddle 307, and the internal thread on the inner wall of the connecting saddle 307 matches the external thread of the second threaded rod 306, so that the rotation of the second threaded rod 306 can drive the connecting saddle 307 to move horizontally on the supporting beam 203 through the thread.

[0034] Refer to the instruction manual appendix Figure 1-5The output end of the DC motor 301 is mechanically connected to a bevel gear, which meshes with the transmission bevel gear 304. The transmission bevel gear 304 and the connecting bevel gear 305 mesh with each other through tooth grooves. The transmission box 302 and the support beam 203 are both provided with transmission grooves that match the support shaft 303, the transmission bevel gear 304, and the connecting bevel gear 305. The transmission grooves provided in the transmission box 302 and the support beam 203 facilitate the meshing and transmission of the transmission bevel gear 304 with the output end of the DC motor 301 and the connecting bevel gear 305, respectively.

[0035] Refer to the instruction manual appendix Figure 1-5 The outer wall of the support shaft 303 is provided with a sleeve groove that matches the auxiliary belt 309, and the included angle between the support shaft 303 and the auxiliary belt 309 is greater than 120 degrees. The inner wall of the auxiliary belt 309 and the outer wall of the sleeve groove of the support shaft 303 are both provided with matching transmission teeth. The inside of the support beam 203 is provided with a belt groove that matches the connecting seat 308 and the auxiliary belt 309. The inner wall of the auxiliary belt 309 and the outer wall of the sleeve groove of the support shaft 303 are both provided with matching transmission teeth. The inside of the support beam 203 is provided with a belt groove that matches the connecting seat 308 and the auxiliary belt 309, which facilitates the rotation of the support shaft 303 and drives the auxiliary belt 309 to move through the transmission teeth.

[0036] The working principle of this practical application is as follows:

[0037] Refer to the instruction manual appendix Figure 1-5 By starting the servo motor 201, the servo motor 201 drives the first threaded rod 202 to rotate. The rotation of the first threaded rod 202 drives the support beam 203 to move up and down on the gantry machine tool 1 through the thread. This movement of the support beam 203 causes the auxiliary rod 205 and the limiting rod 204 to slide on the inner wall of the gantry machine tool 1. This facilitates the engagement of the limiting protrusions on the outer walls of the auxiliary rod 205 and the limiting rod 204 with the grooves on the inner wall of the gantry machine tool 1, allowing the support beam 203 to slide in a limited position on the gantry machine tool 1. The limiting chain 206 is rotatably connected to the outer walls of the gantry machine tool 1 and the limiting rod 204 through bearings and is located in the middle position on the outer wall of the gantry machine tool 1. This allows the limiting chain 206 to limit the height of the support beam 203 as it moves up and down on the gantry machine tool 1, preventing the support beam 203 from falling too low and colliding with the equipment on the gantry machine tool 1.

[0038] Refer to the instruction manual appendix Figure 1-5By starting the DC motor 301, the output end of the DC motor 301 drives the transmission bevel gear 304 to rotate via the bevel gear. The rotation of the transmission bevel gear 304 drives the support shaft 303 to rotate. The rotation of the support shaft 303 drives the connecting bevel gear 305 to rotate via the transmission bevel gear 304. The rotation of the connecting bevel gear 305 drives the second threaded rod 306 to rotate. The second threaded rod 306 drives the connecting saddle 307 to slide at the bottom of the support beam 203 via the thread. At the same time, the rotation of the support shaft 303 drives the auxiliary belt 309 to move via the transmission gear. The auxiliary belt 309 is connected and fixed to the connecting seat 308, which facilitates the movement of the auxiliary belt 309 and the cooperation of the second threaded rod 306 to drive the connecting saddle 307 to slide slowly on the support beam 203, preventing the connecting saddle 307 from sliding too fast and affecting the machining accuracy.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A portal saddle belt device, characterized by: Including gantry machine tool (1), the top of gantry machine tool (1) both sides bolted lifting mechanism (2) is fixed, and it is connected to the inside of gantry machine tool (1) and slidingly connected between gantry machine tool (1), the top of lifting mechanism (2) bolted horizontal mechanism (3) is fixed, and it is connected to the inside of lifting mechanism (2) and slidingly connected to the bottom of lifting mechanism (2); The lifting mechanism (2) comprises a plurality of servo motors (201), the plurality of servo motors (201) are bolted on the top of the gantry machine tool (1), the output end of the servo motor (201) is mechanically connected with a threaded rod (202), and is rotatably connected to the inside of the gantry machine tool (1), the outer wall of the threaded rod (202) is sleeved with a support beam (203), and is slidingly connected between the inner walls of the gantry machine tool (1), the support beam (203) is slidingly connected to the inner wall of the gantry machine tool (1) on one side and is mechanically connected with the support beam (203), the outer wall of the support beam (203) is mechanically machined with an auxiliary rod (205), and is slidingly connected in the inside of the gantry machine tool (1), the limit rod (204) is mechanically connected with the limit chain (206) between the outer wall of the gantry machine tool (1) and the side away from the support beam (203); The horizontal mechanism (3) comprises a plurality of servo motors (201), the plurality of servo motors (201) are bolted on the top of the gantry machine tool (1), the output end of the servo motor (201) is mechanically connected with a threaded rod (202), and is rotatably connected to the inside of the gantry machine tool (1), the outer wall of the threaded rod (202) is sleeved with a support beam (203), and is slidingly connected between the inner walls of the gantry machine tool (1), the support beam (203) is slidingly connected to the inner wall of the gantry machine tool (1) on one side and is mechanically connected with the support beam (203), the outer wall of the support beam (203) is mechanically machined with an auxiliary rod (205), and is slidingly connected in the inside of the gantry machine tool (1), the limit rod (204) is mechanically connected with the limit chain (206) between the outer wall of the gantry machine tool (1) and the side away from the support beam (203); The horizontal mechanism (3) comprises a DC motor (301), the DC motor (301) is installed and fixed on the top of the support beam (203), the output end of the DC motor (301) is sleeved with a transmission box (302), and is installed and fixed on the top of the support beam (203), the inside of the transmission box (302) is rotatably connected with a support shaft (303), and penetrates to the inside of the support beam (203), the top and bottom of the support shaft (303) are respectively machined with transmission bevel gears (304), one side of the bottom of the transmission bevel gear (304) is connected with a connecting bevel gear (305), and is rotatably connected in the inside of the support beam (203), the side away from the transmission bevel gear (304) of the connecting bevel gear (305) is mechanically connected with a second threaded rod (306), and is rotatably connected in the inside of the support beam (203), the outer wall of the second threaded rod (306) is sleeved with a connecting saddle (307), and is slidingly connected to the bottom of the support beam (203), the top of the connecting saddle (307) is machined with a connecting seat (308), and is slidingly connected in the inside of the support beam (203), the outer wall of the connecting seat (308) is mechanically connected with an auxiliary belt (309) on both sides, and is sleeved with the outer wall of the support shaft (303).

2. A portal saddle belt device according to claim 1, characterized in that: The inner wall of the gantry machine tool (1) is provided with a lifting chute matched with the supporting cross beam (203), the outer walls of the plurality of first threaded rods (202) are oppositely threaded, the limiting chain (206) is rotatably connected with the outer walls of the gantry machine tool (1) and the limiting rod (204) through bearings and is located at the middle position of the outer wall of the gantry machine tool (1).

3. A portal saddle belt device according to claim 1, characterized in that: The outer walls of the auxiliary rod (205) and the limiting rod (204) are machined with limiting protrusions, the outer wall of the gantry machine tool (1) is provided with a connecting chute matched with the auxiliary rod (205) and the limiting rod (204) around, and the inner wall of the connecting chute is provided with a groove matched with the limiting protrusions on the outer walls of the auxiliary rod (205) and the limiting rod (204).

4. A portal saddle belt device according to claim 1, characterized in that: The outer wall of the supporting cross beam (203) is provided with a connecting slide rail matched with the connecting saddle (307), the bottom end of the connecting saddle (307) is provided with a threaded hole matched with the mechanical clamping jaw, and the inner wall of the connecting saddle (307) is provided with an internal thread matched with the external thread of the second threaded rod (306).

5. A portal saddle belt device as claimed in claim 1, characterized in that: The output end of the direct current motor (301) is mechanically connected with a bevel gear, and is meshed with a transmission bevel gear (304), the transmission bevel gear (304) and a connecting bevel gear (305) are meshed through a tooth groove, and the transmission box (302) and the supporting cross beam (203) are both internally provided with a transmission groove matched with the supporting shaft (303), the transmission bevel gear (304) and the connecting bevel gear (305).

6. A portal saddle belt device as claimed in claim 1, characterized in that: The outer wall of the supporting shaft (303) is provided with a sleeve groove matched with the auxiliary belt (309), and the included angle between the supporting shaft (303) and the auxiliary belt (309) is greater than 120 degrees, the inner wall of the auxiliary belt (309) and the outer wall of the sleeve groove of the supporting shaft (303) are both provided with matched transmission teeth, and the inside of the supporting cross beam (203) is provided with a belt groove matched with the connecting seat (308) and the auxiliary belt (309).

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