X-axis fixing frame for machine tool

Abstract

The utility model discloses an X-axis fixing frame for a machine tool, which comprises a fixing frame body, the cross section of the fixing frame body is shaped like a Chinese character'ji ', and the fixing frame body comprises a bottom plate and side walls integrally formed on two sides of the bottom plate; guide rail mounting grooves are formed in the top surfaces of the two side walls; a ball screw mounting position is arranged between the two side walls on the front surface of the bottom plate; a nut installation position is arranged on the back face of the fixing frame body, and the cross section of the fixing frame body is shaped like a Chinese character'ji 'to form a through groove structure. The guide rail installation groove is formed in the side wall of the Z-axis guide rail, the Z-axis guide rail is installed in the guide rail installation groove and fixed through the fastener, the guide rail installation groove can position the guide rail, and the position precision of the guide rail is high.

Description

Technical Field

[0001] This utility model relates to the field of X-axis mounting bracket for machine tools. Background Technology

[0002] Three-axis machine tools are a common type of machine tool. They typically have three linear motion axes: X, Y, and Z, enabling precise movement of the workpiece in three directions. A three-axis machine tool usually includes a bed, a worktable, a spindle head, and a feed system. The machine tool supports and mounts other components, the worktable mounts and secures the workpiece, and the feed system includes X-axis, Y-axis, and Z-axis modules. The Y-axis module is slidably supported on the bed along the Y-axis and driven by a Y-axis ball screw mechanism. The X-axis module is slidably supported on the Y-axis module and driven by an X-axis ball screw mechanism. The Z-axis module is slidably supported on the X-axis module and driven by a Z-axis ball screw mechanism. The electric spindle is fixed to the Z-axis module. The X-axis mounting bracket is the main mounting body for the X-axis module. Existing machine tool X-axis mounting brackets, such as the high-precision X-axis feed mechanism for electrolytic machining tools disclosed in application number CN202022334351.X, have an X-axis mounting bracket that is essentially an X-axis base. The X-axis base adopts a flat plate structure, and two guide rails are directly fixed to the X-axis base with fasteners. This mounting structure requires guide rails with a relatively high height to leave enough installation space for the ball screw mechanism. In addition, the guide rails are directly fastened to the flat plate with fasteners, resulting in insufficient constraint on the guide rails. After long-term use, it is difficult to guarantee the positional accuracy of the guide rails. Utility Model Content

[0003] In view of this, the purpose of this utility model is to develop an X-axis mounting bracket for machine tools. The mounting bracket is integrally formed with two side walls, thus forming a strip-shaped groove structure. The ball screw mechanism is installed inside the groove, and two guide rails are installed on the side walls. At the same time, the side walls are also provided with through grooves for installing the guide rails to achieve positioning of the guide rails.

[0004] This utility model discloses an X-axis mounting bracket for machine tools, comprising a mounting bracket body, wherein the cross-section of the mounting bracket body is... The frame includes a base plate and side walls integrally formed on both sides of the base plate; the top surface of the side walls is provided with guide rail mounting grooves; the front of the base plate is provided with a ball screw mounting position between the side walls; the back of the frame body is provided with a nut mounting position.

[0005] Furthermore, a motor support and a bearing housing are fixedly installed at the ball screw mounting position; the bearing housing is used to support the rotation of the ball screw, and the motor housing is used to install the screw drive motor.

[0006] Furthermore, the motor support has a connecting plate at one end and a sliding bearing seat at the other end; the connecting plate is used to fit and fix to the end face of the motor housing, and the sliding bearing seat is used to support the end of the lead screw near the motor.

[0007] Furthermore, several waist-shaped weight-reducing holes are distributed on the side wall.

[0008] Furthermore, the back of the fixing frame body is provided with two slider mounting grooves and a nut mounting groove located between the two slider mounting grooves.

[0009] Furthermore, the back of the fixing frame body is provided with reinforcing ribs. One end of the reinforcing rib is connected to one side of the slider mounting groove, and the other end extends to the end of the fixing frame body. The height of the reinforcing rib gradually decreases.

[0010] Furthermore, a drag chain mounting bracket is also provided on the back of the mounting bracket body.

[0011] The beneficial effects of this utility model are as follows: The X-axis fixing bracket of this utility model has a cross-section of [missing information]. The X-axis mounting bracket is shaped to form a through-groove structure. A guide rail mounting groove is provided on its side wall, and the Z-axis guide rail is installed in the guide rail mounting groove and fixed with fasteners. The guide rail mounting groove can position the guide rail with high positional accuracy. The Z-axis ball screw mechanism is installed in the groove. The entire mounting body of the X-axis mounting bracket of this invention is integrally molded. The mounting positions of the Z-axis ball screw mechanism's screw bearing seat and motor mounting seat are all located on the mounting body of the mounting bracket, resulting in high installation accuracy. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a schematic diagram of the overall structure of the fixing frame body of this utility model;

[0014] Figure 2 This is a schematic diagram of the back structure of the fixing frame body of this utility model;

[0015] Figure 3 This is a front view of the fixing frame body of this utility model;

[0016] Figure 4 This is a rear view of the fixing frame body of this utility model;

[0017] Figure 5 This is a right view of the fixing frame body of this utility model;

[0018] Figure 6 This is a schematic diagram of the back structure of the fixing frame of this utility model;

[0019] Figure 7This is a schematic diagram of the structure of the fixing frame of this utility model;

[0020] Figure 8 This is a schematic diagram of the structure of the motor support of this utility model;

[0021] Figure 9 This is a schematic diagram of the mounting bracket of this utility model on a machine tool.

[0022] Attached reference numerals: Waist-shaped weight reduction hole-1, Side wall-2, Motor mounting position-3, Guide rail mounting slot-4, Proximity switch mounting slot-5, Bearing seat mounting position-6, Guide rail mounting hole-7, Slider mounting slot-8, Nut mounting slot-9, Reinforcing rib-10, Motor support-11, Guide rail-12, Bearing seat-13, Cable drag chain-14, Cable drag chain mounting bracket-15, Slider-16, Z-axis motor-17, Z-axis lead screw-18, X-axis nut-19, Connecting plate-111, Semi-circular groove-112, Sliding bearing seat-113, Support body-114, AY axis module, BX axis module, CZ axis module. Detailed Implementation

[0023] like Figure 1 As shown, an X-axis mounting bracket for a machine tool according to this embodiment includes a mounting bracket body, the cross-section of which is... The device comprises a base plate and side walls 2 integrally formed on both sides of the base plate. The thickness of the bottom of the side walls 2 is greater than the thickness of the top. Five waist-shaped weight-reducing holes 1 are distributed on the side walls 2, thereby ensuring strength while reducing weight. The top surface of each side wall 2 is provided with guide rail mounting grooves 4. The guide rail mounting grooves 4 are through grooves, and the bottom of the grooves has several guide rail mounting holes 7, such as... Figure 6 As shown, the guide rail 12 adopts an I-shaped guide rail, and the guide rail 12 also has through holes distributed along its length that correspond to the guide rail mounting holes 7 for installation. Figure 8 As shown, the guide rail is a Z-axis guide rail, and the Z-axis module C is equipped with a Z-axis slider that cooperates with it, thereby guiding the Z-axis module to slide in the vertical direction.

[0024] like Figure 1 , 3 As shown, a ball screw mounting position is provided on the front of the base plate between the two side walls 2. The ball screw mounting position includes a motor mounting position 3 and a bearing housing mounting position 6. A motor support 11 and a bearing housing are respectively fixedly installed at the motor mounting position 3 and the bearing housing mounting position 6 of the ball screw mounting position; as shown... Figure 7As shown, the motor support 11 has a connecting plate 111 integrally formed at one end of its support body 114, and a sliding bearing seat 113 integrally formed at the other end. The connecting plate 111 is used to fit and fix to the end face of the Z-axis motor housing 17. The connecting plate 111 has a through hole for the motor shaft to pass through. A semi-circular groove 112 is formed on the top surface of the motor support 11, and the motor shaft is located in the groove and connected to the Z-axis lead screw 18 through a coupling. A sliding bearing is installed in the bearing hole of the sliding bearing seat to support the end of the lead screw near the motor. A rolling bearing seat 13 is fixedly installed at the bearing seat mounting position 6 to support the end of the lead screw away from the motor. Figure 8 As shown, the Z-axis module of the machine tool should be equipped with a Z-axis nut that mates with the Z-axis lead screw 18. The motor drives the lead screw to rotate, thereby driving the entire Z-axis module to reciprocate along the longitudinal direction of the lead screw. A proximity switch mounting slot 5 is also provided on the front of the base plate between the two side walls 2. The mounting slot is used to install a proximity switch. When the Z-axis module slides to the limit position, the proximity switch generates a switching signal to control the Z-axis module to stop sliding.

[0025] like Figure 2 , 4 As shown in Figure 5, the back of the fixing frame body has two slider mounting grooves 8 and a nut mounting groove 9 located between the two slider mounting grooves 8. The nut mounting position is a square groove, and the bottom plate of the nut seat can be embedded in the square groove and fixed by bolts or other fasteners. The X-axis nut 19 is fixed in the hole in the middle of the nut seat. Two X-axis sliders 16 are fixed in each slider mounting groove 8. Figure 8 The Y-axis module A is equipped with an X-axis lead screw and an X-axis guide rail, which cooperate with the X-axis nut 19 and the X-axis slider 16 respectively. By rotating the X-axis lead screw, the entire X-axis module B is driven to slide back and forth along the X-axis guide rail.

[0026] like Figure 2 , 5 As shown in Figure 4, a reinforcing rib 10 is provided on the back of the fixing frame body. One end of the reinforcing rib 10 is connected to one side of the slider mounting groove 8, and the other end extends to the end of the fixing frame body. The height of the reinforcing rib 10 gradually decreases. The reinforcing rib 10 can further enhance the rigidity of the X-axis fixing frame body.

[0027] like Figure 5 The back of the mounting bracket body is also provided with a cable chain mounting bracket 15. The mounting plate is used to fix one end of the cable chain 14. The cable chain is used to protect the cables or wires of the electrical components on the X-axis module.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model are included within the protection scope of the present utility model.

Claims

1. An X-axis mounting bracket for a machine tool, characterized in that: Includes a fixing frame body, the cross-section of which is... The frame includes a base plate and side walls integrally formed on both sides of the base plate; the top surface of the side walls is provided with guide rail mounting grooves; the front of the base plate is provided with a ball screw mounting position between the side walls; the back of the frame body is provided with a nut mounting position.

2. The X-axis mounting bracket for a machine tool according to claim 1, characterized in that: The ball screw mounting position is fixedly equipped with a motor support and a bearing housing; the bearing housing is used to support the rotation of the ball screw, and the motor housing is used to install the screw drive motor.

3. The X-axis mounting bracket for a machine tool according to claim 2, characterized in that: The motor support has a connecting plate at one end and a sliding bearing seat at the other end; the connecting plate is used to fit and fix to the end face of the motor housing, and the sliding bearing seat is used to support the end of the lead screw near the motor.

4. The X-axis mounting bracket for a machine tool according to claim 3, characterized in that: Several waist-shaped weight-reducing holes are distributed on the side wall.

5. The X-axis mounting bracket for a machine tool according to claim 4, characterized in that: The back of the fixing frame body is provided with two slider mounting slots and a nut mounting slot located between the two slider mounting slots.

6. The X-axis mounting bracket for a machine tool according to claim 5, characterized in that: The back of the fixing frame body is provided with reinforcing ribs. One end of the reinforcing rib is connected to one side of the slider mounting groove, and the other end extends to the end of the fixing frame body. The height of the reinforcing ribs gradually decreases.

7. The X-axis mounting bracket for a machine tool according to claim 6, characterized in that: The back of the mounting bracket is also equipped with a drag chain mounting bracket.

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