A double four-axis clamp of vertical machining center for motor shaft drilling

Abstract

The utility model discloses a vertical machining center duplex four -axis clamp for motor shaft drills oil hole processing, including the workstation, the top one end fixed mounting of workstation has two tail end cushion block, the top of tail end cushion block is fixed mounting respectively to have hydraulic center, the top another end fixed mounting of workstation has four -axis cushion block, the top fixed mounting of four -axis cushion block has duplex four -axis, the one side fixed mounting of duplex four -axis away from hydraulic center has rotary oil cylinder, the other side fixed mounting of duplex four -axis has three jaw chuck, and one end of three jaw chuck clamping motor shaft, the other end center of motor shaft abuts the end of hydraulic center, the top fixed mounting of workstation is close to hydraulic center one side and has two symmetrical settings's auxiliary support subassembly, the top fixed mounting of the other side of workstation has two symmetrical settings's adjustable support subassembly, and adjustable support subassembly and auxiliary support subassembly are located at the bottom of motor shaft respectively.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a vertical machining center double four-axis fixture for drilling oil holes in motor shafts. Background Technology

[0002] As is well known, a four-axis chuck for a vertical machining center is an auxiliary device used in the production and processing of vertical machining tools to clamp and fix the workpiece, so that the workpiece can be processed more stably. It has been widely used in the field of workpiece clamping.

[0003] In existing technologies, the machining of oil holes in motor shafts needs to meet the requirements of high precision (±0.1° angular tolerance) and high-efficiency production. Traditional single-axis fixtures require multiple clamping operations, leading to the accumulation of datum conversion errors. Furthermore, when drilling oil holes in long motor shafts, the traditional fixtures lack auxiliary support structures due to the long length of the motor shaft, which easily causes vibration during the machining process, affecting machining accuracy. At the same time, single-axis fixtures can only clamp one workpiece at a time, resulting in low production efficiency and making it difficult to meet the needs of large-scale production. Therefore, we propose a vertical machining center double four-axis fixture for drilling oil holes in motor shafts to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a vertical machining center double four-axis fixture for drilling oil holes in motor shafts, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical machining center double four-axis fixture for drilling oil holes in motor shafts, comprising a worktable, two tail end pads fixedly installed at one top end of the worktable, hydraulic centers fixedly installed on the top of the tail end pads respectively, a four-axis pad fixedly installed at the other top end of the worktable, a double four-axis fixedly installed on the top of the four-axis pads, a rotary cylinder fixedly installed on the side of the double four-axis away from the hydraulic centers, and a three-jaw chuck fixedly installed on the other side of the double four-axis, the three-jaw chuck clamping one end of the motor shaft, and the center of the other end of the motor shaft abutting the end of the hydraulic centers; Two symmetrically arranged auxiliary support components are fixedly installed on the top of the worktable near the hydraulic center, and two symmetrically arranged adjustable support components are fixedly installed on the top of the other side of the worktable. The adjustable support components and auxiliary support components are located at the bottom of the motor shaft.

[0006] Preferably, the adjustable support assembly includes a support base, a mounting groove, a cylinder, an angular V-block, and a support block. The support base is fixedly mounted on the workbench. The top of the support base has a mounting groove, and a cylinder is fixedly mounted in the mounting groove. The piston rod end of the cylinder is fixedly connected to the bottom center of the angular V-block. The inner walls on both sides of the top of the angular V-block are respectively fixedly connected to the support blocks. The support blocks are symmetrically arranged and slide against the outer wall of the motor shaft.

[0007] Preferably, one end of a guide slide rod is fixedly connected to both sides of the bottom of the first angular V-shaped block, and the other end of the guide slide rod is slidably connected to both sides of the top of the first support base.

[0008] Preferably, the auxiliary support assembly includes a second support base, a support rod, a second angular V-shaped block, and a second support block. The second support base is fixedly installed on the workbench. The bottom ends of the support rod are fixedly connected to the top two sides of the second support base. The top end of the support rod is fixedly connected to the bottom two sides of the second angular V-shaped block. The second support blocks are fixedly connected to the inner walls of the top two sides of the second angular V-shaped block. The second support blocks are symmetrically arranged and slide against the outer wall of the motor shaft.

[0009] Compared with the prior art, the beneficial effects of this utility model are: 1. The three-jaw chuck with double four-axis fixed connection and two hydraulic centers achieves high-precision positioning and stable clamping of the motor shaft. The double four-axis design allows the fixture to clamp two motor shafts at the same time, which greatly improves production efficiency and meets the needs of large-scale production. 2. Two hydraulic centers abut against the centers of both ends of the motor shaft, effectively preventing axial movement of the motor shaft during processing and ensuring the stability of processing accuracy. Furthermore, the retractable design of the hydraulic centers can adapt to the processing needs of motor shafts of different lengths, enhancing the versatility and flexibility of the fixture. When milling is required at the end of the motor shaft, the hydraulic centers retract to avoid obstructing the operation at the end of the motor shaft. 3. The adjustable support assembly moves up and down towards the V-block one via a cylinder drive, allowing for real-time adjustment of the support height according to the actual machining state of the motor shaft. This, combined with the guide slide rod, ensures the smoothness of the adjustment process, effectively reducing vibrations caused by the motor shaft's own weight or machining cutting forces, and further improving machining accuracy. At the same time, the movement of the V-block one prevents it from obstructing the drilling of oil holes on the surface of the motor shaft. 4. The auxiliary support component adopts a fixed angular V-shaped block design, forming a dual support system with the adjustable support component. This ensures the rigid support of the motor shaft during processing, and increases the support range of the motor shaft through the sliding contact between the support block and the outer wall of the motor shaft. Even when the adjustable support component is disengaged from the motor shaft, the auxiliary support component can still provide stable support for the motor shaft. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a front view of the present utility model.

[0011] In the diagram: 1. Workbench; 2. Tail end pad; 3. Hydraulic center; 4. Four-axis pad; 5. Double four-axis; 6. Rotary cylinder; 7. Three-jaw chuck; 8. Adjustable support assembly; 8. Support seat one; 81. Mounting slot; 82. Cylinder; 83. Guide slide rod; 84. Angular V-block one; 85. Support block one; 86. Auxiliary support assembly; 9. Support seat two; 91. Support rod; 92. Angular V-block two; 93. Support block two; 94. Motor shaft; 10. Detailed Implementation

[0012] 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.

[0013] Example 1 Reference Figure 1 , 2 This is the first embodiment of the present invention. This embodiment provides a vertical machining center double four-axis fixture for drilling oil holes in motor shafts. It includes a worktable 1. Two tail end pads 2 are fixedly installed at one end of the top of the worktable 1. Hydraulic centers 3 are fixedly installed on the top of the tail end pads 2 respectively. A four-axis pad 4 is fixedly installed at the other end of the top of the worktable 1. A double four-axis 5 is fixedly installed on the top of the four-axis pad 4. A rotary cylinder 6 is fixedly installed on the side of the double four-axis 5 away from the hydraulic centers 3. A three-jaw chuck 7 is fixedly installed on the other side of the double four-axis 5. The three-jaw chuck 7 clamps one end of the motor shaft 10. The center of the other end of the motor shaft 10 abuts against the end of the hydraulic centers 3. Two symmetrically arranged auxiliary support components 9 are fixedly installed on the top of the worktable 1 near the hydraulic center 3, and two symmetrically arranged adjustable support components 8 are fixedly installed on the top of the other side of the worktable 1. The adjustable support components 8 and the auxiliary support components 9 are located at the bottom of the motor shaft 10.

[0014] Example 2 Reference Figure 1-3 This is the second embodiment of the present invention, which is based on the previous embodiment. Specifically, the adjustable support assembly 8 includes a support base 81, a mounting groove 82, a cylinder 83, an angular V-block 85, and a support block 86. The support base 81 is fixedly installed on the workbench 1. The top of the support base 81 has a mounting groove 82. The cylinder 83 is fixedly installed in the mounting groove 82. The piston rod end of the cylinder 83 is fixedly connected to the bottom center of the angular V-block 85. The inner walls on both sides of the top of the angular V-block 85 are respectively fixedly connected to the support blocks 86. The support blocks 86 are symmetrically arranged and slide against the outer wall of the motor shaft 10.

[0015] Furthermore, one end of the guide slide rod 84 is fixedly connected to both sides of the bottom of the angular V-block 85, and the other end of the guide slide rod 84 is slidably connected to both sides of the top of the support base 81.

[0016] During the machining process, the cylinder 83 in the adjustable support assembly 8 will drive the angle to move up and down towards the V-block 85 according to the actual machining state of the motor shaft 10, so as to avoid obstructing the drilling of the oil hole of the motor shaft 10 and meet different machining requirements. At the same time, the guide slide 84 ensures the smoothness of the adjustment process and effectively reduces vibration.

[0017] Specifically, the auxiliary support assembly 9 includes a second support base 91, a support rod 92, a second angular V-shaped block 93, and a second support block 94. The second support base 91 is fixedly installed on the workbench 1. The bottom ends of the support rod 92 are fixedly connected to the top two sides of the second support base 91, and the bottom ends of the second angular V-shaped block 93 are fixedly connected to the top two sides of the second angular V-shaped block 93. The second support blocks 94 are fixedly connected to the inner walls of the top two sides of the second angular V-shaped block 93. The second support blocks 94 are symmetrically arranged and slide against the outer wall of the motor shaft 10.

[0018] The auxiliary support component 9 adopts a fixed design and slides in contact with the cylindrical surface at the tail end of the motor shaft 10. It forms a double support system with the adjustable support component 8 to ensure the rigid support of the motor shaft 10 during the processing. When the angular V-block 85 of the adjustable support component 8 is disengaged from the support of the motor shaft 10, the auxiliary support component 9 can still provide stable support for the motor shaft 10.

[0019] The working principle and process are as follows: During processing, one end of the motor shaft 10 is clamped and fixed by the three-jaw chuck 7, while the center of the other end of the motor shaft 10 is positioned by the hydraulic center 3, ensuring the stability and accuracy of the motor shaft 10 during processing. At this time, the adjustable support assembly 8 and the auxiliary support assembly 9 are located at the bottom of the motor shaft 10, providing necessary support force. During processing, according to the actual processing state of the motor shaft 10, the cylinder 83 in the adjustable support assembly 8 will drive the angle to move up and down towards the V-block 85, avoiding obstruction of the drilling of the oil hole of the motor shaft 10 to meet different processing requirements. At the same time, the guide slide 84 ensures the smoothness of the adjustment process and effectively reduces vibration. The auxiliary support assembly 9 adopts a fixed design, slidingly contacting the cylindrical surface at the tail end of the motor shaft 10, forming a double support system with the adjustable support assembly 8 to ensure the rigid support of the motor shaft 10 during processing. After processing, the three-jaw chuck 7 and the hydraulic center 3 are released, and the processed motor shaft 10 can be removed. The entire processing process is efficient and stable, greatly improving production efficiency and processing accuracy.

[0020] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical machining center double-axis four-axis fixture for drilling oil holes in motor shafts, comprising a worktable (1), characterized in that: Two tail end pads (2) are fixedly installed at one end of the top of the workbench (1). Hydraulic centers (3) are fixedly installed on the top of the tail end pads (2). A four-axis pad (4) is fixedly installed at the other end of the top of the workbench (1). A double four-axis (5) is fixedly installed on the top of the four-axis pad (4). A rotary cylinder (6) is fixedly installed on the side of the double four-axis (5) away from the hydraulic centers (3). A three-jaw chuck (7) is fixedly installed on the other side of the double four-axis (5). The three-jaw chuck (7) clamps one end of the motor shaft (10). The center of the other end of the motor shaft (10) abuts against the end of the hydraulic centers (3). Two symmetrically arranged auxiliary support components (9) are fixedly installed on the top of the worktable (1) near the hydraulic center (3), and two symmetrically arranged adjustable support components (8) are fixedly installed on the top of the other side of the worktable (1). The adjustable support components (8) and auxiliary support components (9) are located at the bottom of the motor shaft (10).

2. The vertical machining center double four-axis fixture for drilling oil holes in motor shafts according to claim 1, characterized in that: The adjustable support assembly (8) includes a support base (81), a mounting groove (82), a cylinder (83), an angular V-block (85), and a support block (86). The support base (81) is fixedly installed on the workbench (1). The top of the support base (81) is provided with a mounting groove (82). The cylinder (83) is fixedly installed in the mounting groove (82). The piston rod end of the cylinder (83) is fixedly connected to the bottom center of the angular V-block (85). The inner walls on both sides of the top of the angular V-block (85) are respectively fixedly connected to the support blocks (86). The support blocks (86) are symmetrically arranged and slide against the outer wall of the motor shaft (10).

3. A vertical machining center double four-axis fixture for drilling oil holes in motor shafts according to claim 2, characterized in that: The bottom two sides of the angled V-shaped block (85) are respectively fixedly connected to one end of the guide slide rod (84), and the other end of the guide slide rod (84) is respectively slidably connected to the top two sides of the support base (81).

4. A vertical machining center double-axis four-axis fixture for drilling oil holes in motor shafts according to claim 1, characterized in that: The auxiliary support assembly (9) includes a second support base (91), a support rod (92), a second angular V-shaped block (93), and a second support block (94). The second support base (91) is fixedly installed on the workbench (1). The bottom ends of the support rod (92) are fixedly connected to the top two sides of the second support base (91). The top ends of the support rod (92) are fixedly connected to the bottom two sides of the second angular V-shaped block (93). The second support block (94) is fixedly connected to the inner walls of the top two sides of the second angular V-shaped block (93). The second support block (94) is symmetrically arranged and slides against the outer wall of the motor shaft (10).

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