Gantry machining center light machine applying linear guide rail

Abstract

The utility model discloses a gantry machining center light machine applying linear guide rails, which comprises a working table, sliding guide rails are arranged on two sides of the top end of the working table, the outer walls of the sliding guide rails are connected with a gantry structure body in a sliding mode, a displacement mechanism is arranged at the bottom end of the gantry structure body, and the displacement mechanism is fixedly connected with the top end of the working table. A clamping mechanism is arranged at the top of the moving end of the displacement mechanism, a pressing mechanism is arranged on one side of the clamping mechanism, and the bottom end of the pressing mechanism is fixedly connected with the moving end of the displacement mechanism. The parts are prevented from moving in the machining process and affecting the machining precision, the clamping mechanism and the pressing mechanism can be adjusted in good time according to the different sizes of the machined parts, the product applicability is improved, meanwhile, the tedious step of replacing different adaptive clamps is omitted, and therefore the machining efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of processing and manufacturing equipment technology, specifically relating to an optical mechanism for a gantry machining center using linear guide rails. Background Technology

[0002] Gantry machining centers are named for their gantry-like structure. They consist of a bed, worktable, gantry frame, tool magazine, and CNC system. During operation, the components work together according to programmed instructions to complete milling, drilling, and other machining operations. They are classified in various ways according to their structure and number of axes and are widely used in aerospace, automotive, mold manufacturing, and other fields.

[0003] Gantry machining centers require fixtures to hold workpieces during operation and to work with cutting tools. Existing fixtures are difficult to use when facing round shafts because their smooth surfaces make it difficult to obtain sufficient friction, resulting in slippage during machining and impaired machining accuracy. Furthermore, depending on the diameter of the shaft workpiece, it is necessary to frequently change the appropriate fixture, which is cumbersome and time-consuming, affecting machining efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a gantry machining center optical mechanism using linear guide rails.

[0005] The technical solution adopted to solve the above technical problems is: to provide a gantry machining center optical machine using linear guides, including a worktable, with sliding guides on both sides of the top of the worktable, a gantry structure body slidably connected to the outer wall of the sliding guides, a displacement mechanism at the bottom of the gantry structure body, the displacement mechanism being fixedly connected to the top of the worktable, a clamping mechanism at the top of the moving end of the displacement mechanism, a pressing mechanism on one side of the clamping mechanism, and the bottom end of the pressing mechanism being fixedly connected to the moving end of the displacement mechanism.

[0006] Through the above technical solution, the clamping mechanism and the pressing mechanism work together to keep the shaft parts stable during the processing, preventing the parts from moving and affecting the processing accuracy. In addition, the clamping mechanism and the pressing mechanism can be adjusted in time according to the size of the parts being processed, improving the applicability of the product and eliminating the cumbersome steps of changing different matching fixtures, thereby improving processing efficiency.

[0007] Furthermore, the displacement mechanism includes a first guide rail, which is arranged in parallel and symmetrical arrangement. The bottom end of the first guide rail is fixedly connected to the worktable. A first motor is arranged at the symmetrical center line of the first guide rail. A first threaded transmission rod is fixedly connected to the output end of the first motor. A movable limiting block is rotatably connected to the outer wall of the first threaded transmission rod. The bottom end of the movable limiting block is slidably connected to the first guide rail.

[0008] With the above technical solution, the first motor starts and drives the first threaded transmission rod to rotate. The first threaded transmission rod, through its threaded connection with the movable limit block, drives the movable limit block to move linearly along the first guide rail, thereby conveying the workpiece to the processing area, where it is processed by the processing tool.

[0009] Furthermore, the clamping mechanism includes a second guide rail, which is fixedly connected to the top wall of the movable limiting block. The second guide rail is arranged in parallel and symmetrical arrangement. A second motor is arranged at the center line of the symmetry of the second guide rail. A bidirectional threaded rod is fixedly connected to the output end of the second motor. Movable clamping plates are rotatably connected to both ends of the bidirectional threaded rod. A first limiting clamping plate is fixedly connected to the top wall of the movable clamping plate.

[0010] Through the above technical solution, the second motor starts and drives the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod drives the moving clamping plates at both ends to move towards each other. Through the mutual clamping of the first limiting clamping plate fixedly connected to the top wall of the moving clamping plate, the outer wall of the shaft workpiece is effectively fixed, thereby ensuring the stability of the part during the processing.

[0011] Furthermore, first limiting rollers are rotatably connected to both sides of the top of the first limiting clamp.

[0012] Through the above technical solution, by making rolling contact between the first limiting roller and the outer wall of the workpiece, after one side of the shaft part is processed, the part can be rotated so that the other end contacts the processing tool to continue processing.

[0013] Furthermore, the clamping mechanism includes a first connecting rod, the bottom end of which is fixedly connected to the top end of the movable limiting block, a second connecting rod slidably connected to the outer wall of the first connecting rod, the axis of the first connecting rod being perpendicular to the axis of the second connecting rod, a first threaded rod being arranged parallel to one side of the first connecting rod, the first threaded rod being arranged radially along the second connecting rod, the first threaded rod being threadedly connected to the second connecting rod, and a second limiting clamping plate being rotatably connected to the bottom end of the first threaded rod.

[0014] By rotating the first threaded rod and connecting it to the second connecting rod, the first threaded rod can drive the second limiting clamp to move linearly along the axial direction of the first threaded rod. While pressing and fixing the top of the workpiece, the relative distance between the workpiece and the first limiting clamp can be adjusted according to the size of the workpiece, thereby meeting the clamping requirements of shaft workpieces of different diameters.

[0015] Furthermore, the second limiting clamp is rotatably connected to the two ends of the second limiting clamp.

[0016] The above technical solution, in conjunction with the first limiting roller, facilitates the adjustment of the machining end face of shaft-type workpieces during processing.

[0017] Furthermore, a second threaded rod is threadedly connected to the connection between the second connecting rod and the first connecting rod. The second threaded rod coincides with the axis of the second connecting rod, and the end of the second threaded rod near the first connecting rod is in contact with the first connecting rod.

[0018] Through the above technical solution, the second threaded rod can slide along the axial direction of the first connecting rod by extruding contact with the first connecting rod, thereby adjusting the relative distance with the workpiece surface and thus adapting to workpieces of different sizes.

[0019] The beneficial effects of this utility model are as follows:

[0020] This invention utilizes the cooperation of a clamping mechanism and a pressing mechanism to maintain the stability of shaft parts during processing, preventing movement and ensuring machining accuracy. Furthermore, the clamping and pressing mechanisms can be adjusted according to the size of the parts, improving product applicability and eliminating the cumbersome steps of changing different compatible fixtures, thus increasing processing efficiency. A second motor drives a bidirectional threaded rod to rotate, which in turn drives the moving clamping plates at both ends to move towards each other. The mutual clamping of the first limiting clamping plate, fixed to the top wall of the moving clamping plate, effectively fixes the outer wall of the shaft workpiece, ensuring stability during processing. The first threaded rod drives the second limiting clamping plate to move linearly along the first connecting rod, pressing and fixing the top of the workpiece while adjusting its relative distance to the first limiting clamping plate according to the workpiece size, thus meeting the clamping requirements for shaft workpieces of different diameters. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the displacement mechanism of this utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the clamping mechanism of this utility model.

[0025] Reference numerals in the attached drawings: 1. Workbench; 2. Gantry structure body; 3. Clamping mechanism; 301. First connecting rod; 302. Second connecting rod; 303. First threaded rod; 304. Second threaded rod; 305. Second limiting clamping plate; 306. Second limiting roller; 4. Displacement mechanism; 401. First motor; 402. First threaded transmission rod; 403. First guide rail; 404. Moving limiting block; 5. Clamping mechanism; 501. Moving clamping plate; 502. Second guide rail; 503. First limiting clamping plate; 504. Bidirectional threaded rod; 505. Second motor; 506. First limiting roller; 7. Sliding guide rail. Detailed Implementation

[0026] 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.

[0027] like Figure 1 - Figure 4 As shown, a gantry machining center optical mechanism using linear guides includes a worktable 1. Sliding guides 7 are provided on both sides of the top of the worktable 1. A gantry structure body 2 is slidably connected to the outer wall of the sliding guides 7. A displacement mechanism 4 is provided at the bottom of the gantry structure body 2. The displacement mechanism 4 is fixedly connected to the top of the worktable 1. A clamping mechanism 5 is provided at the top of the moving end of the displacement mechanism 4. A pressing mechanism 3 is provided on one side of the clamping mechanism 5. The bottom end of the pressing mechanism 3 is fixedly connected to the moving end of the displacement mechanism 4.

[0028] The displacement mechanism 4 includes a first guide rail 403, which is arranged in parallel and symmetrical manner. The bottom end of the first guide rail 403 is fixedly connected to the worktable 1. A first motor 401 is arranged at the center line of the symmetry of the first guide rail 403. A first threaded transmission rod 402 is fixedly connected to the output end of the first motor 401. A movable limit block 404 is rotatably connected to the outer wall of the first threaded transmission rod 402. The bottom end of the movable limit block 404 is slidably connected to the first guide rail 403.

[0029] The first motor 401 starts and drives the first threaded transmission rod 402 to rotate. The first threaded transmission rod 402, through its threaded connection with the movable limit block 404, drives the movable limit block 404 to move linearly along the first guide rail 403, thereby conveying the workpiece to the processing area and cooperating with the processing tool to process it.

[0030] The clamping mechanism 5 includes a second guide rail 502, which is fixedly connected to the top wall of the movable limiting block 404. The second guide rail 502 is arranged in parallel and symmetrical manner. A second motor 505 is arranged at the center line of the symmetry of the second guide rail 502. A bidirectional threaded rod 504 is fixedly connected to the output end of the second motor 505. Movable clamping plates 501 are rotatably connected to both ends of the bidirectional threaded rod 504. A first limiting clamping plate 503 is fixedly connected to the top wall of the movable clamping plate 501.

[0031] The second motor 505 starts and drives the bidirectional threaded rod 504 to rotate. The rotation of the bidirectional threaded rod 504 drives the movable clamping plates 501 at both ends to move towards each other. Through the mutual clamping of the first limiting clamping plate 503 fixedly connected to the top wall of the movable clamping plate 501, the outer wall of the shaft workpiece is effectively fixed, thereby ensuring the stability of the part during the processing.

[0032] The top two sides of the first limiting clamping plate 503 are respectively rotatably connected to the first limiting rollers 506. Through the rolling contact between the first limiting rollers 506 and the outer wall of the workpiece, when one side of the shaft part is finished, the part can be rotated so that the other end can contact the processing tool to continue processing.

[0033] The clamping mechanism 3 includes a first connecting rod 301, the bottom end of which is fixedly connected to the top end of the movable limiting block 404. A second connecting rod 302 is slidably connected to the outer wall of the first connecting rod 301. The axis of the first connecting rod 301 is perpendicular to the axis of the second connecting rod 302. A first threaded rod 303 is arranged parallel to one side of the first connecting rod 301. The first threaded rod 303 is arranged radially along the second connecting rod 302. The first threaded rod 303 is threadedly connected to the second connecting rod 302. A second limiting clamping plate 305 is rotatably connected to the bottom end of the first threaded rod 303.

[0034] Rotating the first threaded rod 303, through the threaded connection between the first threaded rod 303 and the second connecting rod 302, the first threaded rod 303 can drive the second limiting clamp 305 to move linearly along the axial direction of the first threaded rod 303. While pressing and fixing the top of the workpiece, it can also adjust the relative distance between the workpiece and the first limiting clamp 303 according to the size of the workpiece, thereby meeting the clamping requirements of shaft workpieces of different diameters.

[0035] The second limiting clamp 305 has a second limiting roller 306 rotatably connected to both ends. The second limiting roller 306 cooperates with the first limiting roller 506 to facilitate the adjustment of the machining end face of shaft workpieces during machining.

[0036] The second connecting rod 302 is threadedly connected to the first connecting rod 301 with a second threaded rod 304. The second threaded rod 304 coincides with the axis of the second connecting rod 302, and the end of the second threaded rod 304 near the first connecting rod 301 is in contact with the first connecting rod 301.

[0037] Through the pressing contact between the second threaded rod 304 and the first connecting rod 301, the second connecting rod 302 can slide along the axial direction of the first connecting rod 301 to adjust the relative distance with the workpiece surface, thereby adapting to workpieces of different sizes.

[0038] In use, the second motor 505 is first started, which drives the bidirectional threaded rod 504 to rotate. The rotation of the bidirectional threaded rod 504 causes the movable clamping plates 501 at both ends to move towards each other. Through the mutual clamping of the first limiting clamping plate 503 fixedly connected to the top wall of the movable clamping plate 501, the outer wall of the shaft workpiece is effectively fixed, thereby ensuring the stability of the part during the processing. The first motor 401 is then started, which drives the first threaded transmission rod 402 to rotate. The first threaded transmission rod 402, through its threaded connection with the movable limiting block 404, drives the movable limiting block 404 to move linearly along the first guide rail 403, thereby conveying the workpiece to the processing area for processing with the processing tool.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A gantry machining center optical mechanism using linear guideways, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with sliding guide rails (7) on both sides. The outer wall of the sliding guide rails (7) is slidably connected to the gantry structure body (2). The bottom of the gantry structure body (2) is provided with a displacement mechanism (4). The displacement mechanism (4) is fixedly connected to the top of the workbench (1). The top of the moving end of the displacement mechanism (4) is provided with a clamping mechanism (5). The clamping mechanism (5) is provided with a pressing mechanism (3) on one side. The bottom of the pressing mechanism (3) is fixedly connected to the moving end of the displacement mechanism (4). The displacement mechanism (4) includes a first guide rail (403), which is arranged in parallel and symmetrical arrangement. The bottom end of the first guide rail (403) is fixedly connected to the worktable (1). A first motor (401) is arranged at the center line of the symmetry of the first guide rail (403). A first threaded transmission rod (402) is fixedly connected to the output end of the first motor (401). A movable limiting block (404) is rotatably connected to the outer wall of the first threaded transmission rod (402). The bottom end of the movable limiting block (404) is slidably connected to the first guide rail (403). The clamping mechanism (5) includes a second guide rail (502), which is fixedly connected to the top wall of the movable limiting block (404). The second guide rail (502) is arranged in parallel and symmetrical. A second motor (505) is provided at the center line of the symmetry of the second guide rail (502). A bidirectional threaded rod (504) is fixedly connected to the output end of the second motor (505). Movable clamping plates (501) are rotatably connected to both ends of the bidirectional threaded rod (504). A first limiting clamping plate (503) is fixedly connected to the top wall of the movable clamping plate (501). The first limiting clamp (503) has first limiting rollers (506) rotatably connected to both sides of its top end. The clamping mechanism (3) includes a first connecting rod (301), the bottom end of the first connecting rod (301) is fixedly connected to the top end of the movable limiting block (404), a second connecting rod (302) is slidably connected to the outer wall of the first connecting rod (301), the axis of the first connecting rod (301) is perpendicular to the axis of the second connecting rod (302), a first threaded rod (303) is arranged parallel to one side of the first connecting rod (301), the first threaded rod (303) is arranged radially along the second connecting rod (302), the first threaded rod (303) is threadedly connected to the second connecting rod (302), and a second limiting clamp (305) is rotatably connected to the bottom end of the first threaded rod (303). The second limiting clamp (305) is rotatably connected to the two ends of the second limiting clamp (306); The second connecting rod (302) is connected to the first connecting rod (301) by a threaded second threaded rod (304). The second threaded rod (304) coincides with the axis of the second connecting rod (302), and the end of the second threaded rod (304) near the first connecting rod (301) is in contact with the first connecting rod (301).

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