Swing arm type material receiving mechanism of numerical control machine tool

Abstract

The invention discloses a numerical control machine tool swing arm type material receiving mechanism which comprises a material receiving frame assembly, a material receiving swing arm assembly is rotationally arranged at the top of the material receiving frame assembly, a material receiving clamping arm assembly used for clamping and receiving materials is arranged in a follow-up material receiving arm assembly, and the material receiving clamping arm assembly is used for centering and clamping, so that the material receiving swing arm assembly is arranged in the follow-up material receiving arm assembly; the follow-up material receiving arm assemblies are arranged at the top of the material receiving swing arm assembly, the machine tool workpieces on the follow-up material receiving arm assemblies are driven by the material receiving swing arm assemblies to rotate and change positions on the material receiving frame assembly, and in the rotating and position changing process, the machine tool workpieces on the follow-up material receiving arm assemblies are clamped and fixed to the follow-up material receiving arm assemblies in a centering mode. Through meshing walking of the follow-up material receiving arm assembly on the material receiving frame assembly, automatic turn-over of machine tool workpieces on the follow-up material receiving arm assembly is achieved, through the structure, rotating transposition of the follow-up material receiving arm assembly on the top of the material receiving frame assembly is achieved, and in the rotating transposition process, the follow-up material receiving arm assembly is driven to rotate. And the rotation turnover of the machine tool workpiece on the follow-up material receiving arm assembly after material receiving and clamping is synchronously realized.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of machine tool accessories, and particularly relates to a swing arm type material receiving mechanism of a numerical control machine tool. BACKGROUND

[0002] A numerical control machine tool is an important equipment for efficient and precise machining in modern manufacturing industry, and its automation degree directly affects the production efficiency and machining quality. In the continuous machining process of a numerical control machine tool, automatic material receiving, transposition and turning over of a workpiece are key links for improving production efficiency and reducing manual intervention. At present, common material receiving mechanisms of numerical control machine tools mostly adopt fixed or simple swing type structures, and have the following problems: Inaccurate material receiving positioning: the existing material receiving mechanisms often lack effective centering clamping structures, which causes the workpiece to easily deviate or shake during material receiving, affecting the positioning accuracy and machining quality in subsequent machining.

[0003] Turning over function is missing or complex: although some material receiving mechanisms can realize transposition of a workpiece, they cannot realize automatic turning over of the workpiece during transposition, and need to additionally set a turning over mechanism or manually intervene, which increases the complexity of the equipment and the difficulty of operation, and reduces the production efficiency.

[0004] Insufficient transposition accuracy and synchronism: the existing mechanisms mostly adopt continuous driving mode when rotating and transposing, and it is difficult to realize accurate fixed-point stopping, which causes inconsistent material receiving positions, affecting the continuity and stability of the machining process. In addition, the clamping mechanism and the rotating mechanism lack effective follow-up cooperation, which causes the workpiece to be unable to realize self-rotation turning over during rotation, and the function is single.

[0005] Complex structure and difficult maintenance: some material receiving mechanisms with turning over function adopt multiple motors and multiple transmission systems, which have complex structure, high manufacturing cost, and high failure rate, and are inconvenient to maintain.

[0006] Therefore, it is urgent to provide a material receiving mechanism of a numerical control machine tool which can realize centering clamping, fixed-point transposition and automatic turning over integration, so as to improve machining efficiency, ensure machining accuracy, and simplify the structure of the equipment. SUMMARY

[0007] To solve the problems proposed in the background, the present application provides a swing arm type material receiving mechanism of a numerical control machine tool, which has the characteristics of automatic turning over.

[0008] To achieve the above object, the present application provides the following technical scheme: A swing arm type material receiving mechanism of a numerical control machine tool, comprising a material receiving rack assembly, a material receiving swing arm assembly is rotatably arranged on the top of the material receiving rack assembly, a plurality of follow-up material receiving arm assemblies are arranged on the top of the material receiving swing arm assembly, a material receiving clamp arm assembly for clamping the material is arranged in the follow-up material receiving arm assembly, the workpiece of the machine tool is clamped and fixed on the follow-up material receiving arm assembly through the center clamping of the material receiving clamp arm assembly, the workpiece of the machine tool on the follow-up material receiving arm assembly is rotated and transposed on the material receiving rack assembly through the material receiving swing arm assembly, the automatic turning of the workpiece of the machine tool on the follow-up material receiving arm assembly is realized through the meshing and walking of the follow-up material receiving arm assembly on the material receiving rack assembly during the rotating and transposing, and the follow-up material receiving arm assembly is rotated and transposed at a fixed point on the material receiving rack assembly through the material receiving swing arm assembly, so that the follow-up material receiving arm assembly forms a structure of fixed-point rotating material receiving on the material receiving rack assembly.

[0009] In a preferred scheme of the swing arm type material receiving mechanism of the numerical control machine tool, the material receiving rack assembly comprises a square material receiving rack, a driving motor is fixedly arranged on the top of the square material receiving rack, an installation arm base is fixedly arranged on the bottom of the square material receiving rack, L-shaped side arms are fixedly arranged on both sides of the square material receiving rack, and a conical gear ring is fixedly arranged on the top of the two L-shaped side arms.

[0010] In a preferred scheme of the swing arm type material receiving mechanism of the numerical control machine tool, the material receiving swing arm assembly comprises a swing arm shaft and a half-wheel driving shaft, a cross top arm is fixedly arranged on the top of the swing arm shaft, a swing arm driving wheel is fixedly arranged on the bottom of the swing arm shaft, driving horizontal grooves and driving arc grooves are formed in the swing arm driving wheel; a driving half-wheel is fixedly arranged on the bottom of the half-wheel driving shaft, a half-wheel driving arm is fixedly arranged on the bottom of the driving half-wheel, and a half-wheel driving rod is fixedly arranged on the end of the half-wheel driving arm away from the driving half-wheel.

[0011] In a preferred scheme of the swing arm type material receiving mechanism of the numerical control machine tool, the follow-up material receiving arm assembly comprises a follow-up material receiving rack, an auxiliary motor is fixedly arranged in the middle of the follow-up material receiving rack, an auxiliary gear is arranged on the output shaft of the auxiliary motor, a T-shaped sliding groove is formed in the inner wall of the follow-up material receiving rack, a second spline shaft is rotatably arranged on one end of the follow-up material receiving rack, a first spline shaft is rotatably arranged on the other end of the follow-up material receiving rack, and a walking bevel gear is fixedly arranged on the end of the first spline shaft away from the follow-up material receiving rack.

[0012] In a preferred scheme of the swing arm type material receiving mechanism of a numerical control machine tool, the material receiving arm assembly comprises a first toothed arm and a second toothed arm, one side of each of the first toothed arm and the second toothed arm is fixedly provided with a T-shaped sliding block, one end of the first toothed arm is fixedly provided with a first end arm, the first end arm is rotatably provided with a first spline shaft tube, one end of the second toothed arm is fixedly provided with a second end arm, the second end arm is rotatably provided with a second spline shaft tube, and one end of each of the second spline shaft tube and the first spline shaft tube is fixedly provided with a clamping arm table.

[0013] In a preferred scheme of the swing arm type material receiving mechanism of a numerical control machine tool, the material receiving arm assembly is arranged inside a follow-up material receiving frame, the T-shaped sliding block slides in a T-shaped sliding groove, the first toothed arm and the second toothed arm are arranged at the top and bottom of an auxiliary gear respectively, the auxiliary gear top is engaged with the first toothed arm, and the auxiliary gear bottom is engaged with the second toothed arm.

[0014] In a preferred scheme of the swing arm type material receiving mechanism of a numerical control machine tool, the first spline shaft tube is sleeved on a first spline shaft, the second spline shaft tube is sleeved on a second spline shaft, the first toothed arm and the second toothed arm are driven by the engagement of the auxiliary gear, and a centering clamping structure of a workpiece of the machine tool is formed between the clamping arm table on the first spline shaft tube and the clamping arm table on the second spline shaft tube.

[0015] In a preferred scheme of the swing arm type material receiving mechanism of a numerical control machine tool, one end of the follow-up material receiving frame away from a walking bevel gear is fixed on a cross top arm, the walking bevel gear is arranged above a conical gear ring, and the walking bevel gear is engaged with the conical gear ring.

[0016] In a preferred scheme of the swing arm type material receiving mechanism of a numerical control machine tool, the swing arm shaft rod is rotatably arranged at the top of a square material receiving frame through a bearing, the cross top arm is located above the square material receiving frame, the swing arm drive wheel is located inside the square material receiving frame, the half-wheel drive shaft rod is arranged on the output shaft of a drive motor, the drive half-wheel is located inside the square material receiving frame, and the drive half-wheel and the swing arm drive wheel are located on the same horizontal plane.

[0017] In a preferred scheme of the swing arm type material receiving mechanism of a numerical control machine tool, the half-wheel drive arm intermittently drives the swing arm drive wheel through the half-wheel drive rod and the drive transverse groove, the material receiving swing arm assembly drives the follow-up material arm assembly to rotate on the top of the material receiving frame assembly, at this time, the walking bevel gear is engaged with the conical gear ring to walk, the first spline shaft forms a structure of self-rotation on the follow-up material receiving frame through the engagement of the walking bevel gear on the conical gear ring, and the bottom of the material receiving frame assembly is fixed on a reserved machine position through the mounting arm seat and the fastening bolt.

[0018] Compared with the prior art, the beneficial effects of the present application are: 1、The present application is equipped with a workpiece clamping arm assembly inside the follow-up workpiece clamping arm assembly for clamping, through the center clamping of the workpiece clamping arm assembly, the workpiece of the machine tool is clamped and fixed on the follow-up workpiece clamping arm assembly, through this structure, on the one hand, the workpiece of the machine tool is clamped and fixed, on the other hand, the workpiece of the machine tool is clamped and fixed.

[0019] 2、The present application is equipped with a plurality of follow-up workpiece clamping arm assemblies on the top of the workpiece swing arm assembly, through the workpiece swing arm assembly, the workpiece of the machine tool on the follow-up workpiece clamping arm assembly is rotated and transposed on the workpiece rack assembly, in the process of rotating and transposing, through the meshing walking of the follow-up workpiece clamping arm assembly on the workpiece rack assembly, the workpiece of the machine tool on the follow-up workpiece clamping arm assembly is automatically turned over, through this structure, the follow-up workpiece clamping arm assembly is rotated and transposed on the top of the workpiece rack assembly, in the process of rotating and transposing, the workpiece of the machine tool on the follow-up workpiece clamping arm assembly is automatically turned over after clamping.

[0020] 3、The present application is equipped with a plurality of follow-up workpiece clamping arm assemblies on the top of the workpiece swing arm assembly, through the workpiece swing arm assembly, the workpiece of the machine tool on the follow-up workpiece clamping arm assembly is rotated and transposed on the workpiece rack assembly, in the process of rotating and transposing, through the meshing walking of the follow-up workpiece clamping arm assembly on the workpiece rack assembly, the workpiece of the machine tool on the follow-up workpiece clamping arm assembly is automatically turned over, through this structure, when the driving motor drives the driving half wheel to rotate a circle, at this time, the driving half wheel drives the swing arm shaft to rotate a certain angle through the half wheel driving rod and the driving transverse groove, so that the follow-up workpiece clamping arm assembly on the top of the workpiece swing arm assembly rotates a certain angle and accurately rotates and transposes. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective view of the present application; Figure 2 It is an exploded view of the present application; Figure 3 It is a perspective view of the workpiece rack assembly of the present application; Figure 4 It is a perspective view of the workpiece swing arm assembly of the present application; Figure 5 It is a perspective view of the follow-up workpiece clamping arm assembly and the workpiece clamping arm assembly of the present application; Figure 6 It is a perspective view of the follow-up workpiece clamping arm assembly of the present application; Figure 7 It is a perspective view of the workpiece clamping arm assembly of the present application.

[0022] Explanation of reference signs: 100, material receiving rack assembly; 101, square material receiving rack; 102, mounting arm base; 103, driving motor; 104, L-shaped side arm; 105, conical gear ring; 200, material receiving swing arm assembly; 201, swing arm shaft; 202, cross top arm; 203, driving transverse groove; 204, swing arm driving wheel; 205, driving arc groove; 206, driving half wheel; 207, half wheel driving arm; 208, half wheel driving rod; 209, half wheel driving shaft; 300, follow-up material receiving arm assembly; 301, follow-up material receiving rack; 302, T-shaped sliding groove; 303, auxiliary motor; 304, auxiliary gear; 305, first spline shaft; 306, second spline shaft; 307, walking bevel gear; 400, material receiving clamp arm assembly; 401, first toothed moving arm; 402, first end arm; 403, first spline shaft tube; 404, clamping arm table; 405, second toothed moving arm; 406, T-shaped sliding block; 407, second end arm; 408, second spline shaft tube. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-7 As shown in the drawings, the present application provides a swing arm type material receiving mechanism of a numerical control machine tool, which comprises a material receiving rack assembly 100, the top of the material receiving rack assembly 100 is rotatably provided with a material receiving swing arm assembly 200, the top of the material receiving swing arm assembly 200 is provided with a plurality of follow-up material receiving arm assemblies 300, the follow-up material receiving arm assembly 300 is internally provided with a material receiving clamp arm assembly 400 for clamping the material, the workpiece of the machine tool is clamped and fixed on the follow-up material receiving arm assembly 300 through the centering clamping of the material receiving clamp arm assembly 400, the workpiece of the machine tool on the follow-up material receiving arm assembly 300 is driven to rotate and change position on the material receiving rack assembly 100 by the material receiving swing arm assembly 200, in the process of rotating and changing position, the follow-up material receiving arm assembly 300 is meshed and walks on the material receiving rack assembly 100, so as to realize the automatic turning of the workpiece of the machine tool on the follow-up material receiving arm assembly 300, and the follow-up material receiving arm assembly 300 is driven by the material receiving swing arm assembly 200 to perform fixed-point rotating and changing position on the material receiving rack assembly 100, so as to form a structure of fixed-point rotating and receiving material of the follow-up material receiving arm assembly 300 on the material receiving rack assembly 100.

[0025] In a preferred embodiment, please refer to Figure 3The receiving rack assembly 100 comprises a square receiving rack 101, a driving motor 103 fixedly arranged on the top of the square receiving rack 101, an installation arm base 102 fixedly arranged on the bottom of the square receiving rack 101, and L-shaped side arms 104 fixedly arranged on both sides of the square receiving rack 101. The top of each L-shaped side arm 104 is fixedly arranged with a conical tooth ring 105.

[0026] In this embodiment, the bottom of the receiving rack assembly 100 is fixed on the reserved machine position through the installation arm base 102 and fastening bolts.

[0027] In a preferred embodiment, referring to Figure 4 The receiving swing arm assembly 200 comprises a swing arm shaft 201, a cross top arm 202 fixedly arranged on the top of the swing arm shaft 201, a swing arm driving wheel 204 fixedly arranged on the bottom of the swing arm shaft 201, a driving horizontal groove 203 and a driving arc groove 205 formed on the swing arm driving wheel 204, a half-wheel driving shaft 209, a driving half-wheel 206 fixedly arranged on the bottom of the half-wheel driving shaft 209, a half-wheel driving arm 207 fixedly arranged on the bottom of the driving half-wheel 206, and a half-wheel driving rod 208 fixedly arranged on the end of the half-wheel driving arm 207 away from the driving half-wheel 206.

[0028] In this embodiment, the swing arm shaft 201 is rotatably arranged on the top of the square receiving rack 101 through a bearing.

[0029] In this embodiment, the cross top arm 202 is located above the square receiving rack 101.

[0030] In this embodiment, the swing arm driving wheel 204 is located inside the square receiving rack 101.

[0031] In this embodiment, the half-wheel driving shaft 209 is arranged on the output shaft of the driving motor 103.

[0032] In this embodiment, the driving half-wheel 206 is located inside the square receiving rack 101.

[0033] In this embodiment, the driving half-wheel 206 and the swing arm driving wheel 204 are in the same horizontal plane.

[0034] In this embodiment, the half-wheel driving arm 207 intermittently drives the swing arm driving wheel 204 through the half-wheel driving rod 208 and the driving horizontal groove 203.

[0035] In a preferred embodiment, referring to Figure 6The follower receiving arm assembly 300 includes a follower receiving frame 301. An auxiliary motor 303 is fixedly installed in the middle of the follower receiving frame 301. An auxiliary gear 304 is installed on the output shaft of the auxiliary motor 303. A T-shaped groove 302 is opened on the inner wall of the follower receiving frame 301. A second spline shaft 306 is rotatably installed at one end of the follower receiving frame 301, and a first spline shaft 305 is rotatably installed at the other end of the follower receiving frame 301. A traveling bevel gear 307 is fixedly installed at the end of the first spline shaft 305 away from the follower receiving frame 301.

[0036] In this embodiment, the end of the follower receiving frame 301 away from the walking bevel gear 307 is fixed to the cross top arm 202.

[0037] In this embodiment, the traveling bevel gear 307 is disposed above the conical toothed ring 105.

[0038] In this embodiment, the traveling bevel gear 307 meshes with the conical toothed ring 105.

[0039] In this embodiment, the receiving arm assembly 200 drives the follower receiving arm assembly 300 to rotate around the top of the receiving rack assembly 100.

[0040] In this embodiment, the traveling bevel gear 307 meshes and travels on the conical gear ring 105.

[0041] In this embodiment, the first spline shaft 305 forms a self-rotating structure on the follower receiving frame 301 by the meshing and walking of the walking bevel gear 307 on the conical toothed ring 105.

[0042] In a preferred embodiment, please refer to Figure 7 The receiving clamp arm assembly 400 includes a first toothed arm 401 and a second toothed arm 405. A T-shaped slider 406 is fixedly provided on one side of both the first toothed arm 401 and the second toothed arm 405. A first end arm 402 is fixedly provided at one end of the first toothed arm 401. A first splined shaft tube 403 is rotatably provided on the first end arm 402. A second end arm 407 is fixedly provided at one end of the second toothed arm 405. A second splined shaft tube 408 is rotatably provided on the second end arm 407. A clamping arm platform 404 is fixedly provided at one end of both the second splined shaft tube 408 and the first splined shaft tube 403.

[0043] In this embodiment, the receiving clamp arm assembly 400 is disposed inside the follow-up receiving frame 301.

[0044] In this embodiment, the T-shaped slider 406 slides within the T-shaped groove 302.

[0045] In this embodiment, the first toothed arm 401 and the second toothed arm 405 are respectively disposed at the top and bottom of the auxiliary gear 304.

[0046] In this embodiment, the top of the auxiliary gear 304 meshes with the first toothed arm 401.

[0047] In this embodiment, the bottom of the auxiliary gear 304 meshes with the second toothed arm 405.

[0048] In this embodiment, the first splined shaft tube 403 is sleeved on the first splined shaft 305.

[0049] In this embodiment, the second splined shaft tube 408 is sleeved on the second splined shaft 306.

[0050] In this embodiment, the first toothed arm 401 and the second toothed arm 405 are driven by the meshing of the auxiliary gear 304, and a centering and clamping structure for the machine tool workpiece is formed between the clamping arm 404 on the first splined shaft tube 403 and the clamping arm 404 on the second splined shaft tube 408.

[0051] The working principle of this invention is as follows: To solve the problem of fasteners during material receiving in CNC machine tools, the follower receiving arm assembly 300 of this invention is internally provided with a receiving clamping arm assembly 400 for clamping the material. Through the centering clamping of the receiving clamping arm assembly 400, the machine tool workpiece is centered, clamped, and fixed on the follower receiving arm assembly 300. Specifically, the receiving clamping arm assembly 400 is disposed inside the follower receiving frame 301, the T-shaped slider 406 slides within the T-shaped slide groove 302, and the first toothed moving arm 401 and the second toothed moving arm 405 are respectively disposed at the top and bottom of the auxiliary gear 304. The auxiliary gear 304 meshes with the first toothed arm 401, and the bottom of the auxiliary gear 304 meshes with the second toothed arm 405. In actual use, the auxiliary motor 303 drives the auxiliary gear 304 to rotate clockwise. At this time, through the meshing of the auxiliary gear 304 with the first toothed arm 401 and the second toothed arm 405, the clamping arm platform 404 at one end of the first toothed arm 401 and the clamping arm platform 404 at one end of the second toothed arm 405 approach each other and form a centering clamping structure. Through this structure, on the one hand, the receiving and clamping of the machine tool workpiece is fixed, and on the other hand, the centering and receiving clamping of the machine tool workpiece is achieved.

[0052] Based on the above, in order to solve the rotational repositioning problem after the follower receiving arm assembly 300 clamps the material, and to simultaneously solve the self-rotation and flipping action of the machine tool workpiece on the follower receiving arm assembly 300 after clamping, the top of the receiving swing arm assembly 200 of this invention is provided with multiple sets of follower receiving arm assemblies 300. The receiving swing arm assembly 200 drives the machine tool workpiece on the follower receiving arm assembly 300 to rotate and reposition on the receiving frame assembly 100. During the rotational repositioning process, the follower receiving arm assembly 300 engages and moves on the receiving frame assembly 100, achieving the following... The automatic flipping of the workpiece on the machine tool via the moving receiving arm assembly 300 specifically involves the following: the end of the follower receiving frame 301 away from the traveling bevel gear 307 is fixed to the cross top arm 202. The traveling bevel gear 307 is positioned above the conical gear ring 105 and meshes with it. In actual use, the receiving arm assembly 200 drives the follower receiving arm assembly 300 to rotate around the top of the receiving frame assembly 100. At this time, the traveling bevel gear 307 meshes and moves on the conical gear ring 105. The first splined shaft 305 forms a self-rotating structure on the follower receiving frame 301 through meshing and movement. Through this structure, the follower receiving arm assembly 300 can rotate and change position on the top of the receiving frame assembly 100. During the rotation and changing process, the walking bevel gear 307 meshes and moves on the conical gear ring 105, simultaneously realizing the self-rotation and flipping of the machine tool workpiece on the follower receiving arm assembly 300 after receiving and clamping, thereby facilitating the processing of each surface of the workpiece after receiving. Based on the above, in order to solve the clamping problem of the receiving clamp arm assembly 400 and the follower receiving... Regarding the issue of the follow-up rotation of the arm assembly 300, the present invention provides a first splined shaft tube 403 sleeved on the first splined shaft 305, and a second splined shaft tube 408 sleeved on the second splined shaft 306. The first splined shaft tube 403 is rotatably disposed at one end of the first geared arm 401, and the second splined shaft tube 408 is rotatably disposed at one end of the second geared arm 405. With this structural arrangement, the material receiving clamp arm assembly 400 does not affect the follow-up rotation after centering and clamping when forming the centering and clamping structure. That is, through the above structure, centering and clamping and follow-up rotation are achieved without interference.

[0053] Based on the above, in order to achieve precise repositioning of the follower receiving arm assembly 300 during rotational repositioning, the receiving swing arm assembly 200 of this invention drives the follower receiving arm assembly 300 to perform fixed-point rotational repositioning on the receiving frame assembly 100, so that the follower receiving arm assembly 300 forms a fixed-point rotational receiving structure on the receiving frame assembly 100. Specifically, the swing arm shaft 201 is rotatably mounted on the top of the square receiving frame 101 via bearings, the cross top arm 202 is located above the square receiving frame 101, the swing arm drive wheel 204 is located inside the square receiving frame 101, and the half-wheel drive shaft 209 is mounted on the output shaft of the drive motor 103. The driving half-wheel 206 is located inside the square receiving frame 101. The driving half-wheel 206 and the swing arm drive wheel 204 are on the same horizontal plane. In actual use, the half-wheel drive arm 207 drives the swing arm drive wheel 204 intermittently through the half-wheel drive rod 208 and the drive cross groove 203. With this structure, when the drive motor 103 drives the driving half-wheel 206 to rotate one revolution, the driving half-wheel 206 drives the swing arm shaft 201 to rotate a certain angle through the half-wheel drive rod 208 and the drive cross groove 203, thereby causing the follower receiving arm assembly 300 at the top of the receiving swing arm assembly 200 to rotate a certain angle and perform precise rotation and repositioning.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended scope of protection and its equivalents.

Claims

1. A swing arm type material receiving mechanism for a CNC machine tool, comprising a material receiving frame assembly (100), characterized in that: The receiving rack assembly (100) has a receiving swing arm assembly (200) rotatably mounted on its top. The receiving swing arm assembly (200) has multiple sets of follower receiving arm assemblies (300) mounted on its top. Each follower receiving arm assembly (300) has a receiving clamping arm assembly (400) inside for clamping and receiving materials. Through the centering and clamping of the receiving clamping arm assembly (400), the machine tool workpiece is centered, clamped, and fixed on the follower receiving arm assembly (300). The receiving swing arm assembly (200) drives the follower receiving arm assembly (300). The machine tool workpiece on the receiving rack assembly (100) rotates and changes position. During the rotation and changing process, the follower receiving arm assembly (300) moves on the receiving rack assembly (100) through meshing, thereby realizing the automatic flipping of the machine tool workpiece on the follower receiving arm assembly (300). The receiving swing arm assembly (200) drives the follower receiving arm assembly (300) to perform fixed-point rotation and changing position on the receiving rack assembly (100), so that the follower receiving arm assembly (300) forms a fixed-point rotation receiving structure on the receiving rack assembly (100).

2. The CNC machine tool swing arm type material receiving mechanism according to claim 1, characterized in that: The receiving rack assembly (100) includes a square receiving rack (101), a drive motor (103) is fixedly installed on the top of the square receiving rack (101), and an mounting arm seat (102) is fixedly installed on the bottom of the square receiving rack (101). L-shaped side arms (104) are fixedly installed on both sides of the square receiving rack (101), and conical toothed rings (105) are fixedly installed on the top of the two L-shaped side arms (104).

3. The CNC machine tool swing arm type material receiving mechanism according to claim 2, characterized in that: The receiving swing arm assembly (200) includes a swing arm shaft (201) and a half-wheel drive shaft (209). A cross top arm (202) is fixedly provided on the top of the swing arm shaft (201), and a swing arm drive wheel (204) is fixedly provided on the bottom of the swing arm shaft (201). A drive transverse groove (203) and a drive arc groove (205) are provided on the swing arm drive wheel (204). A drive half-wheel (206) is fixedly installed at the bottom of the half-wheel drive shaft (209), a half-wheel drive arm (207) is fixedly installed at the bottom of the drive half-wheel (206), and a half-wheel drive rod (208) is fixedly installed at the end of the half-wheel drive arm (207) away from the drive half-wheel (206).

4. The CNC machine tool swing arm type material receiving mechanism according to claim 3, characterized in that: The follower receiving arm assembly (300) includes a follower receiving frame (301), an auxiliary motor (303) is fixedly installed in the middle of the follower receiving frame (301), an auxiliary gear (304) is installed on the output shaft of the auxiliary motor (303), a T-shaped groove (302) is opened on the inner wall of the follower receiving frame (301), a second spline shaft (306) is rotatably installed at one end of the follower receiving frame (301), and a first spline shaft (305) is rotatably installed at the other end of the follower receiving frame (301). A traveling bevel gear (307) is fixedly installed at the end of the first spline shaft (305) away from the follower receiving frame (301).

5. A CNC machine tool swing arm type material receiving mechanism according to claim 4, characterized in that: The receiving clamp arm assembly (400) includes a first toothed arm (401) and a second toothed arm (405). A T-shaped slider (406) is fixedly provided on one side of both the first toothed arm (401) and the second toothed arm (405). A first end arm (402) is fixedly provided at one end of the first toothed arm (401). A first spline shaft tube (403) is rotatably provided on the first end arm (402). A second end arm (407) is fixedly provided at one end of the second toothed arm (405). A second spline shaft tube (408) is rotatably provided on the second end arm (407). A clamping arm platform (404) is fixedly provided at one end of both the second spline shaft tube (408) and the first spline shaft tube (403).

6. A CNC machine tool swing arm type material receiving mechanism according to claim 5, characterized in that: The receiving clamp arm assembly (400) is disposed inside the follower receiving frame (301), the T-shaped slider (406) slides in the T-shaped groove (302), the first toothed arm (401) and the second toothed arm (405) are respectively disposed at the top and bottom of the auxiliary gear (304), the top of the auxiliary gear (304) meshes with the first toothed arm (401), and the bottom of the auxiliary gear (304) meshes with the second toothed arm (405).

7. A swing-arm type material receiving mechanism for CNC machine tools according to claim 5, characterized in that: The first splined shaft tube (403) is sleeved on the first splined shaft (305), and the second splined shaft tube (408) is sleeved on the second splined shaft (306). The first toothed arm (401) and the second toothed arm (405) are driven by the meshing of the auxiliary gear (304). The clamping arm (404) on the first splined shaft tube (403) and the clamping arm (404) on the second splined shaft tube (408) form a centering and clamping structure for the machine tool workpiece.

8. A CNC machine tool swing arm type material receiving mechanism according to claim 5, characterized in that: The end of the follower receiving frame (301) away from the walking bevel gear (307) is fixed on the cross top arm (202). The walking bevel gear (307) is located above the conical toothed ring (105) and meshes with the conical toothed ring (105).

9. A swing-arm type material receiving mechanism for CNC machine tools according to claim 5, characterized in that: The swing arm shaft (201) is rotatably mounted on the top of the square receiving frame (101) via a bearing. The cross top arm (202) is located above the square receiving frame (101). The swing arm drive wheel (204) is located inside the square receiving frame (101). The half-wheel drive shaft (209) is mounted on the output shaft of the drive motor (103). The drive half-wheel (206) is located inside the square receiving frame (101). The drive half-wheel (206) and the swing arm drive wheel (204) are on the same horizontal plane.

10. A CNC machine tool swing arm type material receiving mechanism according to claim 5, characterized in that: The half-wheel drive arm (207) intermittently drives the swing arm drive wheel (204) through the half-wheel drive rod (208) and the drive transverse groove (203). The receiving swing arm assembly (200) drives the follower receiving arm assembly (300) to rotate around the top of the receiving frame assembly (100). At this time, the walking bevel gear (307) meshes and moves on the conical tooth ring (105). Through the meshing and movement of the walking bevel gear (307) on the conical tooth ring (105), the first spline shaft (305) forms a follower rotation structure on the follower receiving frame (301). The bottom of the receiving frame assembly (100) is fixed to the reserved machine position by the mounting arm seat (102) and fastening bolts.

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