Fixture for main shaft machining

Abstract

The fixture comprises a transverse plate, a pair of sliding grooves are formed in the top of the transverse plate, sliding blocks are connected into the sliding grooves in a sliding mode, positioning sleeves are arranged at the top ends of the sliding blocks, and round grooves allowing a main shaft to be inserted are formed in the opposite ends of the two positioning sleeves. The outer ends of the two positioning sleeves are rotationally connected with a first shaft rod and a second shaft rod which are of a T-shaped structure respectively, the transverse plate is rotationally connected with a two-way screw rod, the two-way screw rod is in threaded connection with the two sliding blocks, and hand wheels are fixed to the two ends of the two-way screw rod. The two ends of the main shaft are aligned with the circular grooves respectively, then the two-way screw is rotated, the two sliding blocks and the positioning sleeve are driven to move close to each other till the two ends of the main shaft abut against the first shaft rod and the second shaft rod respectively, and then the main shaft can be fixed; and the first shaft rod can synchronously drive the main shaft and the second shaft rod to rotate together, so that the main shaft can be conveniently polished and machined.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for main shaft processing. Background Art

[0002] Fixture: A device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection, also known as a fixture. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process of the process can be called a fixture. For example, welding fixtures, inspection fixtures, assembly fixtures, machine tool fixtures, etc. Among them, machine tool fixtures are the most common, often referred to as fixtures. When processing workpieces on a machine tool, in order for the surface of the workpiece to meet the technical requirements such as size, geometry and relative position accuracy with other surfaces specified in the drawing, the workpiece must be installed (positioned) and clamped (clamped) before processing.

[0003] For the processing of a longer spindle, the existing fixture generally clamps and fixes the spindle from both ends, so that the spindle cannot rotate. This is particularly inconvenient when the spindle needs to be polished. Therefore, corresponding improvements are made to address this problem. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a fixture for main shaft processing.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The two ends of the two locating sleeves are respectively rotatably connected to the first shaft rod and the second shaft rod of the T-shaped structure, and the two ends of the two locating sleeves are respectively rotatably connected to the first shaft rod and the second shaft rod of the T-shaped structure. The two-way screw is rotatably connected to the cross plate, and the two-way screw is threadedly connected to the two sliders. Both ends of the two-way screw are fixed with a hand wheel. The first shaft rod is connected with a driving assembly for driving the first shaft rod to rotate, so that the two ends of the spindle are respectively aligned with the circular grooves, and then the two-way screw is rotated by the hand wheel to drive the two sliders and the positioning sleeve to move closer to each other until the two ends of the spindle are respectively inserted into the corresponding circular grooves and respectively press against the first shaft rod and the second shaft rod, so that the spindle can be fixed. When it is necessary to grind the spindle, it only needs to drive the first shaft rod to rotate by the driving assembly, and the first shaft rod will synchronously drive the spindle and the second shaft rod to rotate together, thereby facilitating the grinding of the spindle.

[0007] Preferably, the driving assembly includes a mounting base fixed on the transverse plate, a motor is fixed on the mounting base, a first gear is connected to the motor output shaft, a second gear is rotatably connected to the mounting base and meshes with the first gear, an end of the first shaft rod passes through the second gear and the mounting base, the first shaft rod can move along the axial direction of the second gear, the motor is started, the motor output shaft drives the first gear to rotate, the first gear meshes and drives the second gear to rotate, and the second gear will synchronously drive the first shaft rod to rotate.

[0008] Preferably, a pair of guide grooves are formed on the circumferential outer wall of the first shaft rod, and a pair of guide strips slidingly fitted with the guide grooves are formed on the circumferential inner wall of the second gear, so that the first shaft rod can move axially along the second gear, and the first shaft rod can also rotate together with the second gear.

[0009] Preferably, rubber pads are fixed to the opposite ends of the first shaft rod and the second shaft rod, and the rubber pads can increase the friction between the first shaft rod, the second shaft rod and the main shaft, so that the main shaft can be better driven by the first shaft rod.

[0010] Preferably, a base plate is provided below the transverse plate, a pair of electric push rods are fixed on the top of the base plate, the output shaft of the electric push rod is connected to a fixed block, the fixed block is rotatably connected to a connecting rod, the two directional grooves at the bottom of the transverse plate are slidably connected with directional blocks, the directional blocks are rotatably connected to the connecting rods, and the two connecting rods are rotatably connected together, and the electric push rod is started, and the output shaft of the electric push rod drives the fixed block to move toward the middle or outward, and the fixed block drives the connecting rod to rotate accordingly, thereby adjusting the height position of the transverse plate, thereby facilitating the processing of the spindle.

[0011] Preferably, a pair of inner columns are fixed at the bottom of the transverse plate, a pair of sleeves are fixed at the top of the bottom plate, the inner columns are inserted into the sleeves, and the stability of the transverse plate can be improved by the sliding fit between the inner columns and the sleeves.

[0012] The beneficial effects of the utility model are:

[0013] 1. The device is provided with a positioning sleeve, and the two ends of the main shaft are aligned with the circular grooves respectively, and then the bidirectional screw is rotated by a hand wheel to drive the two sliders and the positioning sleeve to move closer to each other until the two ends of the main shaft are respectively inserted into the corresponding circular grooves and respectively pressed against the first shaft rod and the second shaft rod, so that the main shaft can be fixed. When the main shaft needs to be polished, it only needs to drive the first shaft rod to rotate through the driving assembly, and the first shaft rod will synchronously drive the main shaft and the second shaft rod to rotate together, thereby facilitating the polishing of the main shaft.

[0014] 2. The device is provided with a driving assembly. When the motor is started, the motor output shaft drives the first gear to rotate. The first gear meshes and drives the second gear to rotate. The second gear will synchronously drive the first shaft to rotate.

[0015] 3. The device is provided with a connecting rod. When the electric push rod is started, the output shaft of the electric push rod drives the fixed block to move to the middle or to the outside, and the fixed block drives the connecting rod to rotate accordingly, thereby adjusting the height position of the cross plate, so as to facilitate the processing of the spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a fixture for spindle processing proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-section structure of a fixture for spindle processing proposed by the utility model;

[0018] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the proposed fixture for spindle machining at point A;

[0019] Figure 4 This is a schematic diagram of the second gear structure of a spindle processing fixture proposed by the utility model;

[0020] Figure 5 The utility model is a schematic diagram of the bottom structure of a horizontal plate of a fixture for spindle processing.

[0021] In the figure: 1. horizontal plate; 2. slide groove; 3. slider; 4. positioning sleeve; 5. circular groove; 6. bidirectional screw; 7. hand wheel; 8. first shaft rod; 9. second shaft rod; 10. mounting seat; 11. motor; 12. first gear; 13. second gear; 14. guide groove; 15. guide strip; 16. rubber pad; 17. bottom plate; 18. electric push rod; 19. fixing block; 20. directional groove; 21. directional block; 22. connecting rod; 23. inner column; 24. sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-5A fixture for spindle processing includes a horizontal plate 1, a pair of slide grooves 2 are opened on the top of the horizontal plate 1, a slider 3 is slidably connected in the slide groove 2, a positioning sleeve 4 is provided on the top of the slider 3, and a circular groove 5 for inserting the spindle is opened at the opposite ends of the two positioning sleeves 4. The outer ends of the two positioning sleeves 4 are respectively rotatably connected with a first shaft rod 8 and a second shaft rod 9 of a T-shaped structure, a bidirectional screw rod 6 is rotatably connected to the horizontal plate 1, the bidirectional screw rod 6 is threadedly connected to the two sliders 3, hand wheels 7 are fixed at both ends of the bidirectional screw rod 6, and the first shaft rod 8 is connected to a driving assembly. By driving the first shaft rod 8 to rotate, the two ends of the main shaft are aligned with the circular groove 5 respectively, and then the bidirectional screw rod 6 is rotated by the hand wheel 7 to drive the two sliders 3 and the positioning sleeve 4 to move closer to each other, until the two ends of the main shaft are respectively inserted into the corresponding circular grooves 5, and respectively press against the first shaft rod 8 and the second shaft rod 9, so that the main shaft can be fixed. When the main shaft needs to be polished, it is only necessary to drive the first shaft rod 8 to rotate through the driving assembly, and the first shaft rod 8 will synchronously drive the main shaft and the second shaft rod 9 to rotate together, thereby facilitating the polishing of the main shaft.

[0024] Preferably, the driving assembly includes a mounting base 10 fixed on the horizontal plate 1, a motor 11 is fixed on the mounting base 10, the output shaft of the motor 11 is connected to the first gear 12, the mounting base 10 is rotatably connected to the second gear 13 meshing with the first gear 12, the end of the first shaft rod 8 passes through the second gear 13 and the mounting base 10, the first shaft rod 8 can move along the axial direction of the second gear 13, start the motor 11, the output shaft of the motor 11 drives the first gear 12 to rotate, the first gear 12 meshes and drives the second gear 13 to rotate, and the second gear 13 will synchronously drive the first shaft rod 8 to rotate.

[0025] Preferably, a pair of guide grooves 14 are provided on the circumferential outer wall of the first shaft rod 8, and a pair of guide bars 15 that form a sliding fit with the guide grooves 14 are provided on the circumferential inner wall of the second gear 13, so that the first shaft rod 8 can move along the axial direction of the second gear 13, and the first shaft rod 8 can also rotate together with the second gear 13.

[0026] Preferably, rubber pads 16 are fixed to the opposite ends of the first shaft 8 and the second shaft 9. The rubber pads 16 can increase the friction between the first shaft 8, the second shaft 9 and the main shaft, so that the main shaft can be better driven by the first shaft 8.

[0027] Preferably, a base plate 17 is provided below the transverse plate 1, a pair of electric push rods 18 are fixed on the top of the base plate 17, the output shaft of the electric push rod 18 is connected to a fixed block 19, the fixed block 19 is rotatably connected to a connecting rod 22, and the two directional grooves 20 at the bottom of the transverse plate 1 are slidably connected with directional blocks 21, the directional blocks 21 are rotatably connected to the connecting rod 22, and the two connecting rods 22 are rotatably connected together, and the electric push rod 18 is started, and the output shaft of the electric push rod 18 drives the fixed block 19 to move toward the middle or outward, and the fixed block 19 will drive the connecting rod 22 to rotate accordingly, thereby adjusting the height position of the transverse plate 1, thereby facilitating the processing of the spindle.

[0028] Preferably, a pair of inner columns 23 are fixed to the bottom of the cross plate 1, and a pair of sleeves 24 are fixed to the top of the bottom plate 17. The inner columns 23 are inserted into the sleeves 24. The sliding fit between the inner columns 23 and the sleeves 24 can improve the stability of the cross plate 1.

[0029] Working principle: Align the two ends of the main shaft with the circular groove 5 respectively, and then rotate the bidirectional screw 6 through the hand wheel 7 to drive the two sliders 3 and the positioning sleeve 4 to move closer to each other until the two ends of the main shaft are respectively inserted into the corresponding circular grooves 5 and respectively press against the first shaft rod 8 and the second shaft rod 9, so that the main shaft can be fixed. When the main shaft needs to be polished, it is only necessary to start the motor 11, and the output shaft of the motor 11 drives the first gear 12 to rotate, and the first gear 12 meshes and drives the second gear 13 to rotate, and the second gear 13 will synchronously drive the first shaft rod 8 to rotate, and the first shaft rod 8 will synchronously drive the main shaft and the second shaft rod 9 to rotate together;

[0030] Start the electric push rod 18, the output shaft of the electric push rod 18 drives the fixed block 19 to move toward the middle or outward, and the fixed block 19 drives the connecting rod 22 to rotate accordingly, thereby adjusting the height position of the cross plate 1, so as to facilitate the processing of the main shaft.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

Claims

1. A fixture for spindle processing, comprising a horizontal plate (1), characterized in that: A pair of slide grooves (2) are provided on the top of the transverse plate (1), a slider (3) is slidably connected in the slide groove (2), a positioning sleeve (4) is provided on the top of the slider (3), a circular groove (5) for inserting the main shaft is provided at the opposite ends of the two positioning sleeves (4), the outer ends of the two positioning sleeves (4) are respectively rotatably connected to a first shaft rod (8) and a second shaft rod (9) of a T-shaped structure, a bidirectional screw rod (6) is rotatably connected to the transverse plate (1), the bidirectional screw rod (6) is threadedly connected to the two sliders (3), hand wheels (7) are fixed at both ends of the bidirectional screw rod (6), and the first shaft rod (8) is connected to a driving assembly for driving the first shaft rod (8) to rotate.

2. A spindle processing fixture according to claim 1, characterized in that: The driving assembly comprises a mounting seat (10) fixed on the transverse plate (1), a motor (11) being fixed on the mounting seat (10), an output shaft of the motor (11) being connected to a first gear (12), a second gear (13) being rotatably connected to the mounting seat (10) and meshing with the first gear (12), an end of a first shaft rod (8) passing through the second gear (13) and the mounting seat (10), and the first shaft rod (8) being able to move axially along the second gear (13).

3. A spindle processing fixture according to claim 2, characterized in that: A pair of guide grooves (14) are provided on the circumferential outer wall of the first shaft rod (8), and a pair of guide bars (15) which are slidably matched with the guide grooves (14) are provided on the circumferential inner wall of the second gear (13).

4. A spindle processing fixture according to claim 1, characterized in that: Rubber pads (16) are fixed to opposite ends of the first shaft rod (8) and the second shaft rod (9).

5. A spindle processing fixture according to claim 1, characterized in that: A bottom plate (17) is arranged below the transverse plate (1), a pair of electric push rods (18) are fixed on the top of the bottom plate (17), the output shaft of the electric push rod (18) is connected to a fixed block (19), a connecting rod (22) is rotatably connected to the fixed block (19), and an oriented block (21) is slidably connected in two oriented grooves (20) at the bottom of the transverse plate (1), the oriented block (21) is rotatably connected to the connecting rod (22), and the two connecting rods (22) are rotatably connected together.

6. A spindle processing fixture according to claim 5, characterized in that: A pair of inner columns (23) are fixed at the bottom of the transverse plate (1), a pair of sleeves (24) are fixed at the top of the bottom plate (17), and the inner columns (23) are inserted into the sleeves (24).

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