Positioning clamp for machining machine tool spindle
By designing a positioning fixture including auxiliary rollers, nip rollers and hydraulic telescopic rods, the problem of poor applicability of traditional machine tool spindle machining fixtures is solved, and flexible fixation and height adjustment of spindles of multiple diameters is achieved, and machining accuracy is improved. and convenience of use.
Patent Information
- Application Number
- CN202421238664.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-17
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Traditional machine tools have poor applicability and cannot flexibly adjust spindles of different diameters, resulting in increased production costs and inconvenient use.
A positioning fixture including auxiliary rollers, nip rollers, hydraulic telescopic rods and lifting mechanisms is designed. Through the hydraulic telescopic rods, the up and down movement of the nip rollers and the height adjustment of the lifting plates are controlled, so as to achieve flexible fixation of spindles of various diameters. .
Improves the applicability and flexibility of positioning fixtures, can be applied to spindles of different diameters, reduces production costs, and simplifies the use process.
Smart Images
Figure CN222359753U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machine tool spindle processing, in particular to a positioning fixture for machine tool spindle processing. Background Art
[0002] The machine tool spindle is the core component of the machine tool, and its processing requires high precision, high stability and high quality. The machine tool spindle is an important component of the machine tool, which plays the role of supporting and rotating the tool, and is one of the core components to realize the processing function of the machine tool. The precision required for the production of the machine tool spindle is extremely high, otherwise it will cause the machine tool spindle to be affected in the later use. Therefore, when the machine tool spindle is produced and processed, it is necessary to clamp and position it in the middle of the spindle to improve the precision of the machine tool spindle during turning.
[0003] Traditional machine tool spindle processing fixtures have poor applicability. They are not easy to adjust when clamping spindles of different diameters. Spindle that is too large or too small cannot be used, which leads to the need to replace fixtures of other specifications for fixation, which increases the production cost and is inconvenient to use.
[0004] Therefore, those skilled in the art provide a positioning fixture for machining a machine tool spindle to solve the problems raised in the above background technology. Utility Model Content
[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a positioning fixture for machine tool spindle processing is proposed. The positioning fixture supports the machine tool spindle by two auxiliary rollers at the bottom, and the top clamping roller presses it down to fix it, so as to achieve clamping positioning, and the top clamping roller is controlled by a second hydraulic telescopic rod to achieve adjustable clamping. It can be used when fixing spindles of various diameters, has high applicability, is easy to adjust, and thus has greater flexibility and is easy to use.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A positioning fixture for machine tool spindle processing comprises a fixed ring and a base plate, auxiliary rollers are rotatably arranged on both sides of the bottom end of the fixed ring, second limit grooves are provided at both the front and rear ends of the top of the fixed ring, clamping frames are slidably arranged inside the two second limit grooves, a second hydraulic telescopic rod is fixedly arranged in the middle of the clamping frame, a clamping roller is rotatably arranged in the middle of the bottom end of the clamping frame, and the bottom of the second hydraulic telescopic rod is fixedly connected to the top of the fixed ring.
[0008] Through the above technical solution, the auxiliary roller supports the bottom of the machine tool spindle, and the top of the spindle is pressed down and clamped by the top clamping roller, and the clamping roller can be controlled to move up and down by the second hydraulic telescopic rod on the clamping frame, thereby achieving adjustability.
[0009] Furthermore, a lifting plate is fixedly arranged at the bottom of the fixing ring, and first limiting grooves are provided at both side ends of the lifting plate;
[0010] Through the above technical solution, the lifting and lowering of the lifting plate drives the fixing ring to lift and lower.
[0011] Furthermore, limiting columns are fixedly arranged on both sides of the top of the bottom plate, and the two limiting columns are respectively sleeved with the two first limiting grooves;
[0012] Through the above technical solution, the limiting groove is sleeved on the limiting column to play a guiding role.
[0013] Furthermore, a first hydraulic telescopic rod is fixedly arranged in the middle of the bottom plate, and the top of the first hydraulic telescopic rod is fixedly connected to the lifting plate;
[0014] Through the above technical solution, the first hydraulic telescopic rod controls the lifting.
[0015] Furthermore, a limiting block is fixedly arranged on the top of each of the two limiting columns;
[0016] Through the above technical solution, the limiting block limits the two first limiting grooves, which can prevent the lifting height from being too high and the fixing ring from falling off.
[0017] Furthermore, the four corners of the bottom plate are all threaded with fixing bolts;
[0018] Through the above technical solution, the bottom of the clamp is fixed by fixing bolts, which makes it easy to install on the machine tool.
[0019] The utility model has the following beneficial effects:
[0020] 1. The utility model proposes a positioning fixture for machining a machine tool spindle. The positioning fixture supports the machine tool spindle through two auxiliary rollers at the bottom, and the top clamping roller presses it down to fix it, so as to achieve clamping positioning. The top clamping roller is controlled by a second hydraulic telescopic rod to achieve adjustable clamping. It can be used to fix spindles of various diameters. It has high applicability and is easy to adjust, so it is more flexible and easy to use.
[0021] 2. The utility model proposes a positioning fixture for machine tool spindle processing. A lifting mechanism is arranged at the bottom of the processing fixture. The lifting mechanism controls the lifting plate to move up and down on two limit columns through a first hydraulic telescopic rod, thereby adjusting the height of the fixture, making it easy to adjust the height to be suitable for machine tools of different heights, further improving the applicability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1This is an exploded view of a positioning fixture for machining a machine tool spindle proposed by the utility model;
[0023] Figure 2 This is a right side isometric view of a positioning fixture for machining a machine tool spindle proposed by the utility model;
[0024] Figure 3 This is a left side isometric view of a positioning fixture for machining a machine tool spindle proposed by the utility model;
[0025] Figure 4 The utility model is a front view of a positioning fixture for machining a machine tool spindle.
[0026] Legend:
[0027] 1. Fixed ring; 2. Bottom plate; 3. First hydraulic telescopic rod; 4. Limiting column; 5. Fixing bolt; 6. Limiting block; 7. Lifting plate; 8. First limiting groove; 9. Auxiliary roller; 10. Second limiting groove; 11. Clamping frame; 12. Second hydraulic telescopic rod; 13. Clamping roller. DETAILED DESCRIPTION
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. In the description of this application, it should be noted that the terms used here are only for describing specific implementations, and are not intended to limit the exemplary implementations according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0029] Reference Figure 1-4 , an embodiment provided by the utility model:
[0030] A positioning fixture for machining a machine tool spindle comprises a fixing ring 1 and a base plate 2, auxiliary rollers 9 are rotatably arranged on both sides of the bottom end of the fixing ring 1, second limiting grooves 10 are provided at both front and rear ends of the top of the fixing ring 1, clamping frames 11 are slidably arranged inside the two second limiting grooves 10, a second hydraulic telescopic rod 12 is fixedly arranged in the middle of the clamping frame 11, a clamping roller 13 is rotatably arranged in the middle of the bottom end of the clamping frame 11, the bottom of the second hydraulic telescopic rod 12 is fixedly connected to the top of the fixing ring 1, the auxiliary rollers 9 support the bottom of the machine tool spindle, and the top of the spindle is pressed down and clamped by the top clamping roller 13, and the clamping roller 13 can be controlled to move up and down by the second hydraulic telescopic rod 12 on the clamping frame 11, thereby achieving adjustability.
[0031] A lifting plate 7 is fixedly arranged at the bottom of the fixing ring 1. First limit grooves 8 are provided on both side ends of the lifting plate 7. The lifting and lowering of the lifting plate 7 drives the fixing ring 1 to be lifted and lowered. Limiting columns 4 are fixedly arranged on both sides of the top of the bottom plate 2. The two limit columns 4 are respectively sleeved with the two first limit grooves 8. The limit grooves are sleeved on the limit columns 4 to play a guiding role. A first hydraulic telescopic rod 3 is fixedly arranged in the middle of the bottom plate 2. The top of the first hydraulic telescopic rod 3 is fixedly connected to the lifting plate 7. The first hydraulic telescopic rod 3 controls the lifting and lowering. Limiting blocks 6 are fixedly arranged on the tops of the two limit columns 4. The limit blocks 6 limit the two first limit grooves 8 to prevent the lifting height from being too high and the fixing ring 1 from falling off. Fixing bolts 5 are threadedly arranged at the four corners of the bottom plate 2. The bottom of the clamp is fixed by the fixing bolts 5, which can be conveniently installed with the machine tool.
[0032] Working principle: The auxiliary roller 9 supports the bottom of the machine tool spindle, and the top of the spindle is clamped downward by the top clamping roller 13, and the clamping roller 13 can be controlled to move up and down by the second hydraulic telescopic rod 12 on the clamping frame 11, so as to achieve adjustability. The limit groove is set on the limit column 4 to play a guiding role. The first hydraulic telescopic rod 3 controls the lifting and lowering, and the lifting and lowering of the lifting plate 7 drives the fixed ring 1 to lift and lower, so as to achieve height adjustment.
[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A positioning fixture for machining a machine tool spindle, comprising a fixing ring (1) and a base plate (2), characterized in that: Auxiliary rollers (9) are rotatably arranged on both sides of the bottom end of the fixing ring (1), and second limiting grooves (10) are opened at the front and rear ends of the top of the fixing ring (1), and clamping frames (11) are slidably arranged inside the two second limiting grooves (10), and a second hydraulic telescopic rod (12) is fixedly arranged in the middle of the clamping frame (11), and a clamping roller (13) is rotatably arranged in the middle of the bottom end of the clamping frame (11), and the bottom of the second hydraulic telescopic rod (12) is fixedly connected to the top of the fixing ring (1).
2. A positioning fixture for machining a machine tool spindle according to claim 1, characterized in that: A lifting plate (7) is fixedly arranged at the bottom of the fixing ring (1), and first limiting grooves (8) are provided at both side ends of the lifting plate (7).
3. The positioning fixture for machining a machine tool spindle according to claim 1, characterized in that: Limiting columns (4) are fixedly arranged on both sides of the top of the bottom plate (2), and the two limiting columns (4) are respectively sleeved with the two first limiting grooves (8).
4. The positioning fixture for machining a machine tool spindle according to claim 1, characterized in that: A first hydraulic telescopic rod (3) is fixedly arranged in the middle of the base plate (2), and the top of the first hydraulic telescopic rod (3) is fixedly connected to the lifting plate (7).
5. The positioning fixture for machining a machine tool spindle according to claim 3, characterized in that: Limiting blocks (6) are fixedly arranged on the tops of the two limiting columns (4).
6. The positioning fixture for machining a machine tool spindle according to claim 1, characterized in that: The four corners of the base plate (2) are all threadedly provided with fixing bolts (5).