An adjustment pad and machine tool linear guide system

Abstract

An adjusting pad and a linear guide system for machine tools, belonging to the technical field of machine tool parts, are disclosed. The adjusting pad includes two elongated, sheet-like pads, each fixedly connected at one end by a connecting part. All pads are spaced apart along the length of the connecting part, with a first clearance groove between adjacent pads. The first clearance groove is open at the end furthest from the connecting part. A second clearance groove is provided on the outer side of each pad near the two ends of the connecting part, also open at the end furthest from the connecting part, and open on the side closest to the end of the connecting part. The first and second clearance grooves together provide clearance for all fastening screws. The sides of the second clearance grooves at both ends open simultaneously, eliminating the need for the outermost sheet, reducing the workpiece machining accuracy requirements, and facilitating the insertion and positioning of the adjusting pad, significantly reducing alignment difficulty.

Description

Technical Field

[0001] This utility model relates to the field of machine tool parts technology, and in particular to an adjustment pad and a machine tool linear guide system. Background Technology

[0002] Linear guides consist of a guide body and a guide block (slider). They rely on rolling elements to achieve low-friction linear motion and are core transmission components in automation, machine tools, and precision equipment. When the guide block is connected to the sliding structure of the equipment, shims need to be placed between the mounting base of the guide block and the sliding structure. The shims ensure the parallelism between the guide block and the sliding structure. At the same time, by placing shims of different thicknesses, the relative distance between the guide block and the sliding structure can be adjusted to meet different installation requirements.

[0003] Traditional washers are usually a single piece, requiring the fastening screws to be completely loosened or even removed before they can be inserted or removed, which is cumbersome and inefficient. To improve efficiency, washers are now typically equipped with clearance slots that are open at one end. The number of clearance slots is the same as the number of fastening screws, allowing the screws to pass and facilitating the insertion or removal of the washers.

[0004] Currently, the gaskets with clearance slots have clearance slots spaced along the length of the side of the gasket insertion side. The clearance slots near both ends of the gasket are semi-open, that is, there is a piece between the clearance slot near both ends of the gasket and the end faces of both ends of the gasket, with only one end of the clearance slot open. The piece in this area is used to insert the screw between the screw and the inner wall of the sliding structure. It requires high processing precision and is difficult to insert. It is necessary to accurately align the screw, which still affects work efficiency. Utility Model Content

[0005] To address the technical problems in the prior art where existing shims with clearance slots have semi-open clearance slots near both ends, requiring high machining precision and being difficult to insert, thus affecting work efficiency, this utility model provides an adjustment shim and a machine tool linear guide system.

[0006] The technical solution of this utility model is as follows: This utility model provides an adjustment pad, comprising two elongated, sheet-like pads. One end of each pad is fixedly connected via a connecting part. All pads are spaced apart along the length of the connecting part. A first clearance groove is provided between adjacent pads, with the end of the first clearance groove away from the connecting part open. A second clearance groove is provided on the outer side of each of the two pads near the connecting part, with the end of the second clearance groove away from the connecting part open and the side of the second clearance groove near the end of the connecting part open. The first and second clearance grooves together provide clearance for all fastening screws, allowing them to be directly inserted from the side, significantly reducing alignment difficulty. The sides of the second clearance grooves at both ends are simultaneously open, eliminating the original solid sheet structure at the ends, reducing the workpiece machining accuracy requirements, and facilitating the insertion and positioning of the adjustment pad. The overall layout fits the guide block installation space, with clear partitioning between the grooves and pads, resulting in uniform force distribution. The pads can be stably positioned between the guide block and the mounting base, ensuring effective gap adjustment.

[0007] Preferably, both the first and second clearance grooves extend toward the connecting part, the grooves extend along the length of the pad, the groove shape is uniform, the side insertion is smooth and there will be no jamming, and the groove length is sufficient to cover the entire clearance range.

[0008] Preferably, the width of the first clearance groove is greater than the diameter of the shank of the fastening screw, so that the shank of the fastening screw can be freely placed in the groove. When inserting or pulling the adjustment pad, it will not rub against or get stuck with the fastening screw, and the operation is smoother.

[0009] Preferably, the width of the second clearance groove is greater than the diameter of the rod of the fastening screw, which is compatible with the end fastening screw, ensuring that the adjustment pad can move in and out laterally without obstruction and that the clearance effect is consistent in all positions.

[0010] Preferably, the operating part is fixedly provided on the side of the connecting part away from the pad, forming a force application position. The operator can hold the operating part to complete the pushing and pulling action without directly contacting the pad, making it convenient to apply force.

[0011] Preferably, the operating part extends away from the pad body, forming a positional separation from the guide rail block installation area, providing ample working space and ensuring that the hand will not touch the guide rail, screws, or other components during operation, thus enhancing operational safety.

[0012] Preferably, the operating part is provided with tool connection holes, which can be used with special tools such as hooks and pull rods for operation, adapting to narrow installation spaces, and facilitating batch disassembly and assembly and long-distance force application.

[0013] Preferably, the connecting part is a long strip-shaped structure, which will not occupy the gap space between the guide block and the mounting base, while ensuring that the spacing between each set of pads is constant, the overall structure is not easily deformed, and has good stability for long-term repeated use.

[0014] Preferably, the first clearance groove is any one or more combinations of U-shaped groove, open long groove and notch structure, which can be flexibly selected according to screw specifications and installation space. Different groove types can achieve lateral clearance function and can match the usage requirements under different working conditions.

[0015] A linear guide system for machine tools includes: an adjusting shim, which is inserted between a guide block and a mounting base. The guide block and the mounting base are fixedly connected by fastening screws, which are located in corresponding first and second clearance grooves. The fastening screws fall into the clearance grooves accordingly, allowing for quick disassembly, assembly, addition, and replacement of the adjusting shim without disassembling the screws. This enables rapid calibration of the guide rail clearance. The overall structure of the adjusting shim is stable and the force is uniform, providing uniform support to the guide rail block and ensuring the flatness and running accuracy of the guide rail installation. The assembly structure is simple, significantly reducing the difficulty of subsequent guide rail maintenance and accuracy readjustment.

[0016] As can be seen from the above technical solutions, the advantages of this utility model are: 1. Relying on the first and second clearance grooves to provide clearance for all fastening screws, the screws can be directly inserted from the side, greatly reducing the difficulty of alignment. The sides of the second clearance grooves at both ends are opened simultaneously, eliminating the need for the outermost plate and reducing the requirements for workpiece machining accuracy. At the same time, it facilitates the insertion and positioning of the adjustment pad. The overall layout fits the installation space of the guide block, with clear partitions between the groove and the pad, resulting in uniform force distribution. The pad can be stably set between the guide block and the mounting base, ensuring the effect of gap adjustment.

[0017] 2. An operating part is fixed on the side of the connecting part away from the pad, forming a force application position. The operator can hold the operating part to complete the push and pull action without directly contacting the pad, making it convenient to apply force. The operating part is equipped with a tool connection hole, which can be used with special tools such as hooks and pull rods for operation, making it suitable for narrow installation spaces. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the adjustment pad according to one or more embodiments of the present invention; Figure 2 This is a schematic diagram of the installation of the adjustment pad according to one or more embodiments of the present invention; The components represented by the various reference numerals in the diagram are: 1. Pad; 2. First clearance groove; 3. Second clearance groove; 4. Connecting part; 5. Operating part; 6. Tool connecting hole; 7. Guide block; 8. Mounting base surface; 9. Fastening screw. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] Example 1 In a typical embodiment of this utility model, such as Figure 1 As shown, an adjusting pad is proposed, comprising: a pad body 1, a first clearance groove 2, a second clearance groove 3, and a connecting part 4. Both the pad body 1 and the connecting part 4 are elongated sheet structures. There are two pad bodies 1 and one connecting part 4. One end of all pad bodies 1 is fixedly connected to the connecting part 4, and all pad bodies 1 are spaced apart along the length direction of the connecting part 4. The pad body 1 is used to be inserted between adjacent rows of fastening screws 9. A first clearance groove 2 is provided between adjacent pad bodies 1. The first clearance groove 2 is a semi-open structure with one end open, and the first clearance groove 2 is used to avoid the fastening screws 9. A second clearance groove 3 is provided on the outer side of the two pad bodies 1 near both ends of the connecting part 4. The second clearance groove 3 is an open structure. Specifically, one end of the second clearance groove 3 is open, and the side of the second clearance groove 3 near the end of the connecting part 4 is open to avoid the fastening screws 9. The setting of the outermost sheet body is eliminated, the processing accuracy requirement of the clearance groove is reduced, and the insertion of the adjusting pad is facilitated.

[0022] In this embodiment, both the first clearance groove 2 and the second clearance groove 3 extend inward along the edge of the adjusting pad (that is, extend along the insertion direction of the adjusting pad, or can be understood as extending towards the connecting part 4). The pad body 1 is provided with at least two of them, and the first clearance groove 2 is provided with at least one, so as to avoid the fastening screw 9.

[0023] It should be noted that the length of the connecting part 4 matches the width of the mounting base 8 so that during use, the connecting part 4 can be inserted together with the guide rail block 7 and the mounting base 8 as an adjustment part.

[0024] The first clearance groove 2 can be a U-shaped groove, an open long groove, or a notch structure. The shape of the first clearance groove 2 at different positions can be the same or different. That is, the first clearance groove 2 can be any one or more combinations of U-shaped groove, open long groove, and notch structure.

[0025] In this embodiment, the thickness of the pad 1 is a preset standard thickness, which is used to adjust the installation height of the guide block 7. In order to facilitate insertion, the end corners of the pad 1 can be set as transition structures. No further restrictions are imposed here.

[0026] The width of the first clearance groove 2 is greater than the diameter of the shank of the fastening screw 9 to form an assembly gap, which facilitates the machining of the first clearance groove 2, reduces its machining accuracy requirements, and also facilitates the insertion of the adjusting shim without the need for accurate alignment with the fastening screw 9; similarly, the width of the second clearance groove 3 is greater than the diameter of the shank of the fastening screw 9.

[0027] To facilitate the installation and removal of the adjustment pad, an operating part 5 is fixedly provided on the side of the connecting part 4 away from the pad body 1. The operating part 5 extends in a direction away from the pad body 1 (which can also be understood as away from the insertion direction of the adjustment pad) to facilitate the insertion or removal of the adjustment pad.

[0028] like Figure 1 As shown, the operating part 5 is provided with a tool connection hole 6, which is used to connect with the operating tool, so as to facilitate the insertion or removal of the tool-assisted adjustment pad and make it convenient to use.

[0029] Example 2 In another typical embodiment of this utility model, such as Figure 2 As shown, a linear guide system for a machine tool is proposed, including: an adjusting pad, which is inserted between the guide block 7 and the mounting base 8 to adjust the mounting height of the guide block 7 and is fixed by fastening screws 9. The fastening screws 9 are arranged in several rows at intervals and are located in the corresponding first clearance groove 2 and second clearance groove 3.

[0030] The specific working principle is as follows: During the installation process, the guide rail block 7 is initially fixed to the mounting base surface 8 by the fastening screw 9, and the fastening screw 9 is kept in a state of not being fully tightened; according to the installation accuracy requirements, an adjustment shim of appropriate thickness is selected, and its first clearance groove 2 and second clearance groove 3 are aligned with the position of the fastening screw 9, and the adjustment shim is inserted between the guide rail block 7 and the mounting base surface 8. During disassembly or adjustment, it is not necessary to completely remove the fastening screw 9. Simply loosen the fastening screw 9 appropriately to pull out or replace the adjusting shim from the side, thereby achieving quick adjustment.

[0031] Understandably, the thickness of pad 1 can be set to various specifications to meet different adjustment needs.

[0032] By setting a first clearance groove 2 and a second clearance groove 3 with the edges through, the adjusting shim can be inserted or removed even when the fastening screw 9 is not completely removed. The second clearance groove 3 has an open structure, eliminating the setting of the outermost piece, reducing the requirements for the machining accuracy of the clearance groove, and facilitating the insertion of the adjusting shim, which significantly improves the installation and adjustment efficiency of the guide block 7. At the same time, it reduces the repeated disassembly and assembly of the guide block 7, reduces assembly errors and labor intensity, and has a simple structure and strong applicability.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustment pad, comprising: The long strip-shaped pad (1) is characterized in that there are two pads (1), one end of all pads (1) is fixedly connected by a connecting part (4), all pads (1) are spaced apart along the length direction of the connecting part (4), a first clearance groove (2) is provided between adjacent pads (1), the first clearance groove (2) is open at the end away from the connecting part (4), and a second clearance groove (3) is provided on the outer side of the two pads (1) near the two ends of the connecting part (4), the second clearance groove (3) is open at the end away from the connecting part (4), and the side of the second clearance groove (3) near the end of the connecting part (4) is open.

2. The adjusting pad according to claim 1, characterized in that, Both the first clearance groove (2) and the second clearance groove (3) extend toward the connecting part (4).

3. The adjusting pad according to claim 1, characterized in that, The width of the first clearance groove (2) is greater than the diameter of the shank of the fastening screw (9).

4. The adjusting pad according to claim 1, characterized in that, The width of the second clearance groove (3) is greater than the diameter of the rod of the fastening screw (9).

5. The adjusting pad according to claim 1, characterized in that, An operating part (5) is fixedly provided on the side of the connecting part (4) away from the pad (1).

6. The adjusting pad according to claim 5, characterized in that, The operating part (5) extends in a direction away from the pad (1).

7. The adjusting pad according to claim 5, characterized in that, The operating part (5) is provided with a tool connection hole (6).

8. The adjusting pad according to claim 1, characterized in that, The connecting part (4) is a long strip-shaped structure.

9. The adjusting pad according to claim 1, characterized in that, The first clearance groove (2) is any one or more combinations of U-shaped groove, open long groove and notch structure.

10. A linear guide system for a machine tool, characterized in that, include: The adjusting pad as described in any one of claims 1-9 is inserted between the guide block (7) and the mounting base (8), and the guide block (7) and the mounting base (8) are fixedly connected by fastening screws (9), and the fastening screws (9) are located in the corresponding first clearance groove (2) and second clearance groove (3).

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