Machine tool precision adjusting mechanism

Abstract

The utility model discloses a machine tool precision adjusting mechanism, belongs to the technical field of machine tool machining, and mainly solves the technical problems that a mechanism in the prior art needs to be frequently disassembled during precision adjustment, is not convenient enough, is difficult to directly reduce a guide rail gap, is not beneficial to timely adjustment of the precision of a machine tool, has machining errors, and cannot adjust the precision of the machine tool. The adjusting mechanism comprises a machine tool guide rail, a sliding seat is installed on the surface of the machine tool guide rail in a sliding mode, two guide grooves are formed in the inner wall of the sliding seat and are symmetrically distributed, sliding groove blocks are installed in the guide grooves in a sliding mode, threaded sleeves are arranged on the two sides of the sliding seat through bearings, and the threaded sleeves are connected with the sliding seat through bearings. And the inner surface of the threaded sleeve is in threaded connection with a threaded limiting rod, one end of the threaded limiting rod is fixedly connected with the sliding groove block, two oil conveying channels are formed in the sliding base, two guide-in holes are formed in the end of each oil conveying channel, and the two guide-in holes are located in the inner walls of the two sides of the sliding base correspondingly.

Description

Technical Field

[0001] This utility model relates to the field of machine tool processing technology, and more specifically, to a machine tool precision adjustment mechanism. Background Technology

[0002] Machine tools are equipment used to process various mechanical parts and are one of the core equipment in modern manufacturing. Machine tools process raw materials into the required shapes and sizes through processes such as cutting, grinding, drilling, and milling. CNC machine tools play an important role in modern manufacturing and are widely used in the precision machining of various parts. To ensure the machining accuracy of machine tools, adjusting the machine tool clearance is a crucial step. Reasonable clearance adjustment can adjust the machining accuracy of machine tools and effectively reduce machining errors.

[0003] However, there are various types of precision adjustment mechanisms in the existing technology. For example, utility model patent CN218136694U relates to a machine tool precision adjustment mechanism and the machine tool thereof. This utility model includes a long bed, a sliding seat is provided on the long bed, and a driving device for driving the sliding seat to slide back and forth on the long bed is also provided on the long bed. The driving end of the driving device is poweredly connected to a lead screw. The sliding seat includes a body, and an installation component for threading the body onto the lead screw is fixed on the lower end face of the body. The installation component includes a threaded sleeve for threading onto the lead screw. A connecting block is fitted on the outside of the threaded sleeve. A U-shaped opening mounting base is bolted to one side of the connecting block. An oblong hole is opened at the position where the mounting base and the connecting block are connected by bolts, and the mounting base is connected to the body. This utility model has a simple and compact structure. By changing the mounting component, which should be an integrated unit, into a detachable assembly, the flexibility of the device is enhanced. At the same time, combined with the oblong hole, it is convenient to adjust the actual machining accuracy problem caused by the machining error of the long bed in a timely manner.

[0004] Although the adjustment mechanism changes the integrated structure to a detachable assembly, which is more flexible, it requires frequent disassembly for precision adjustment, which is inconvenient. It is also difficult to directly reduce the guide rail clearance, which is not conducive to timely adjustment of the machine tool's precision. This results in machining errors and reduces the service life of the guide rails. To avoid this, it is essential to design a machine tool precision adjustment mechanism. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] To achieve the above objectives, this utility model provides a machine tool precision adjustment mechanism, which is accomplished by the following specific technical means:

[0007] A machine tool precision adjustment mechanism includes a machine tool guide rail, a sliding seat slidably mounted on the surface of the machine tool guide rail, the sliding seat being inverted U-shaped, two guide grooves being formed on the inner wall of the sliding seat, the two guide grooves being symmetrically distributed, a sliding block being slidably mounted inside each guide groove, threaded sleeves being provided on both sides of the sliding seat via bearings, threaded limit rods being threadedly connected to the inner surface of the threaded sleeves, and one end of the threaded limit rods being fixedly connected to the sliding block, two oil supply channels being provided inside the sliding seat, and two inlet holes being provided at the ends of the oil supply channels, the two inlet holes being located on the inner walls of both sides of the sliding seat respectively.

[0008] Preferably, two sets of fixed support plates are fixedly connected to the sliding seat, and the two sets of fixed support plates are symmetrically distributed. Assembly plates are installed on both sets of fixed support plates. Oil-absorbing cotton pads are provided on the surfaces of the two symmetrically distributed assembly plates that are close to each other, and the oil-absorbing cotton pads can be attached to the machine tool guide rail.

[0009] Preferably, the outer surface of the threaded sleeve is coaxially provided with an adjustment knob, and the two adjustment knobs are respectively located on both sides of the sliding seat.

[0010] Preferably, the sliding seat is provided with two sets of sliding sleeves, and the two sets of sliding sleeves are symmetrically distributed. A guide rod is slidably installed inside the sliding sleeve, and one end of the guide rod is fixedly connected to the sliding block.

[0011] Preferably, the two slide blocks are symmetrically distributed, the slide blocks are trapezoidal in shape, and the two slide blocks are matched with the machine tool guide rail.

[0012] Preferably, the top of the sliding seat is provided with an oil inlet, and the oil inlet is located above the oil delivery channel, and the oil inlet is connected to the two oil delivery channels.

[0013] Preferably, each fixed support plate is provided with a connecting bolt, and each connecting bolt is threaded with a connecting nut. The connecting bolts and connecting nuts are used to install and fix the assembly plate.

[0014] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0015] This invention, through the inclusion of a sliding block and an oil-absorbing cotton pad, not only adjusts the guide rail clearance but also lubricates the machine tool guide rails. This eliminates the need to disassemble the sliding seat, making it easy to directly reduce the guide rail clearance. This facilitates the adjustment of the machine tool's machining accuracy, reduces machining errors, and improves the machine tool's service life. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 This is a perspective structural diagram of the present invention;

[0018] Figure 2 This is a partial structural schematic diagram of the present invention;

[0019] Figure 3 A schematic diagram of the structure of the oil-absorbing cotton pad and the assembly plate installed on the sliding seat;

[0020] Figure 4 This is a structural diagram of the oil-absorbing cotton pad and the assembly plate.

[0021] Figure 5 This is a side view of the structure of this utility model.

[0022] In the diagram: 1. Machine tool guide rail; 2. Sliding seat; 3. Guide groove; 4. Sliding block; 5. Threaded sleeve; 6. Threaded limit rod; 7. Oil supply channel; 8. Inlet hole; 9. Oil inlet; 10. Assembly plate; 11. Oil-absorbing cotton pad; 12. Adjustment knob; 13. Sliding sleeve; 14. Guide rod; 15. Fixed support plate; 16. Connecting bolt; 17. Connecting nut. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. The present invention provides the following embodiments.

[0026] like Figure 1 , Figure 2 as well as Figure 4As shown, it is a structural schematic diagram of the machine tool precision adjustment mechanism in this embodiment. The adjustment mechanism in this embodiment includes a machine tool guide rail 1, and a sliding seat 2 is slidably installed on the surface of the machine tool guide rail 1. The sliding seat 2 is in the shape of an inverted U. In the machine tool, the machine tool guide rail 1 is set on the machine tool, and the sliding seat 2 can slide horizontally on the machine tool guide rail 1.

[0027] In this embodiment, the inner wall of the sliding seat 2 has two guide grooves 3, which are symmetrically distributed. A sliding block 4 is slidably installed inside each guide groove 3. Threaded sleeves 5 are provided on both sides of the sliding seat 2 via bearings. A threaded limiting rod 6 is threadedly connected to the inner surface of the threaded sleeve 5, and one end of the threaded limiting rod 6 is fixedly connected to the sliding block 4. Adjustment knobs 12 are coaxially provided on the outer surface of each threaded sleeve 5, with the two adjustment knobs 12 located on opposite sides of the sliding seat 2. During the process of reducing the guide rail clearance, due to… Two sliding blocks 4 can slide in the guide groove 3. By rotating the two adjusting knobs 12, the threaded sleeve 5 is rotated. Then, through the threaded engagement between the threaded sleeve 5 and the threaded limit rod 6, the rotating threaded sleeve 5 can extend and retract one end of the threaded limit rod 6. The end of the threaded limit rod 6 pushes the sliding blocks 4 to move, bringing the two sliding blocks 4 close to the machine tool guide rail 1, so that the two sliding blocks 4 fit tightly against the machine tool guide rail 1, reducing the gap with the machine tool guide rail 1, thereby initially adjusting the machining accuracy of the machine tool.

[0028] In this embodiment, the sliding seat 2 has two oil supply channels 7 inside, and two inlet holes 8 are provided at the ends of the oil supply channels 7. The two inlet holes 8 are located on the inner walls of both sides of the sliding seat 2. An oil inlet 9 is provided at the top of the sliding seat 2, and the oil inlet 9 is located above the oil supply channels 7. The oil inlet 9 is connected to the two oil supply channels 7. Two sets of fixed support plates 15 are fixedly connected to the sliding seat 2, and the two sets of fixed support plates 15 are symmetrically distributed. Assembly plates 10 are installed on both sets of fixed support plates 15. Oil-absorbing cotton pads 11 are provided on the surfaces of the two symmetrically distributed assembly plates 10 that are close to each other. The oil-absorbing cotton pads 11 can adhere to the machine tool guide rail 1. Since lubricating oil can reduce friction and play a role in rust prevention and cleaning, replacing and adding lubricating oil can reduce the friction between the guide rails. During lubrication, lubricating oil is poured into the two oil channels 7 through the oil inlet 9. Through the transport function of the oil channels 7, the lubricating oil flows out from the two inlet holes 8 and onto the machine tool guide rail 1. Simultaneously, two sets of assembly plates 10 are mounted on the fixed support plate 15. Using oil-absorbing cotton pads 11 installed on the assembly plates 10, the lubricating oil penetrates into the oil-absorbing cotton pads 11. The two oil-absorbing cotton pads 11 are used to wipe the machine tool guide rail 1, adhering the lubricating oil to the guide rail 1 and reducing the gap between the guide rail and the machine tool guide rail 1. This further adjusts the machining accuracy of the machine tool, eliminating the need to disassemble the sliding seat 2. This facilitates direct reduction of the guide rail gap, allows for timely adjustment of the machine tool's machining accuracy, reduces machining errors, and improves the machine tool's service life.

[0029] It is worth noting that in this embodiment, the two slide blocks 4 are symmetrically distributed, the slide blocks 4 are trapezoidal in shape, and the two slide blocks 4 are matched with the machine tool guide rail 1.

[0030] like Figure 3 As shown, in this embodiment, each fixed support plate 15 is provided with a connecting bolt 16, and each connecting bolt 16 is threaded with a connecting nut 17. The connecting nut 17 is screwed onto the connecting bolt 16, and the assembly plate 10 is installed and fixed by the connecting bolt 16 and the connecting nut 17.

[0031] It is worth noting that, such as Figure 2 As shown, in this embodiment, the sliding seat 2 is provided with two sets of sliding sleeves 13, and the two sets of sliding sleeves 13 are symmetrically distributed. A guide rod 14 is slidably installed inside the sliding sleeve 13, and one end of the guide rod 14 is fixedly connected to the sliding block 4. By utilizing the sliding cooperation between the sliding sleeve 13 and the guide rod 14, the moving sliding block 4 is positioned and guided, so that the two sliding blocks 4 can move stably.

[0032] 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 machine tool precision adjusting mechanism, comprising a machine tool guide rail (1), a sliding seat (2) is slidingly mounted on the surface of the machine tool guide rail (1), and the sliding seat (2) is inverted U-shaped, characterized in that: The inner wall of the sliding seat (2) is provided with two guide grooves (3), and the two guide grooves (3) are symmetrically distributed, the inside of the guide groove (3) is slidably provided with a sliding groove block (4), the two sides of the sliding seat (2) are provided with threaded sleeves (5) through bearings, the inner surface of the threaded sleeve (5) is threadedly connected with a threaded limiting rod (6), and one end of the threaded limiting rod (6) is fixedly connected with the sliding groove block (4), the inside of the sliding seat (2) is provided with two oil conveying channels (7), the end of the oil conveying channel (7) is provided with two guide holes (8), and the two guide holes (8) are respectively located on the inner walls of the two sides of the sliding seat (2).

2. A machine tool accuracy adjustment mechanism according to claim 1, characterised in that: The two groups of fixed supporting plates (15) are fixedly connected on the sliding seat (2) and are symmetrically distributed, the two groups of fixed supporting plates (15) are provided with an assembly plate (10), and the surfaces of the two symmetrically distributed assembly plates (10) are provided with oil absorbing cotton pads (11), and the oil absorbing cotton pads (11) can be attached to the machine tool guide rail (1).

3. A machine tool accuracy adjustment mechanism according to claim 1, characterised in that: The outer surfaces of the threaded sleeves (5) are coaxially provided with adjusting knobs (12), and the two adjusting knobs (12) are respectively located on the two sides of the sliding seat (2).

4. A machine tool accuracy adjustment mechanism according to claim 1, characterised in that: The sliding seat (2) is provided with two groups of sliding sleeves (13), and the two groups of sliding sleeves (13) are symmetrically distributed, the inside of the sliding sleeve (13) is slidably provided with a guide rod (14), and one end of the guide rod (14) is fixedly connected with the sliding groove block (4).

5. A machine tool accuracy adjustment mechanism according to claim 1, characterised in that: The two sliding groove blocks (4) are symmetrically distributed, the shape of the sliding groove block (4) is trapezoidal, and the two sliding groove blocks (4) are matched with the machine tool guide rail (1).

6. A machine tool accuracy adjustment mechanism according to claim 1, characterised in that: The top of the sliding seat (2) is provided with an oil inlet (9), and the oil inlet (9) is located above the oil conveying channel (7), and the oil inlet (9) is communicated with the two oil conveying channels (7).

7. A machine tool accuracy adjustment mechanism according to claim 2, characterised in that: The fixed supporting plate (15) is provided with a connecting bolt (16), the surface of the connecting bolt (16) is threadedly provided with a connecting nut (17), and the connecting bolt (16) and the connecting nut (17) are used for mounting and fixing the assembly plate (10).

Images