High-precision sliding block pre-tightening structure

By introducing limiting and heat dissipation designs into the slider preload structure, the problems of low slider precision and frictional heat generation are solved, thereby achieving slider stability and extended lifespan.

CN223572490UActive Publication Date: 2025-11-21MIANYANG CHUNXING INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202423258512.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-11-21
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

The low precision of the slider in existing multi-axis CNC machine tools affects product quality, and frictional heat causes structural deformation. Conventional pre-tightening structures have poor stability and cannot effectively prevent slider wobbling and heat accumulation.

Method used

A high-precision slider pre-tightening structure is designed, which adopts a multi-directional limiting structure of pre-tightening components, opposite side blocks and bottom support blocks, combined with heat dissipation components to absorb and dissipate the slider heat, ensuring the slider's stability and heat dissipation effect.

Benefits of technology

It improves the preload effect of the slider, reduces processing errors, reduces surface gaps in the product, and extends the service life of the slider.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sliding block pre-tightening, and provides a high-precision sliding block pre-tightening structure which comprises a mounting plate, pre-tightening pieces distributed adjacently are arranged at the top of the outer wall of one side of the mounting plate, and the two ends of the outer wall of one side of the mounting plate are fixedly connected with opposite side blocks through screws. Bottom supporting blocks which are symmetrically distributed are welded to the bottom of the outer wall of one side of the mounting plate. The sliding block piece can be in sliding fit with the pre-tightening piece firstly to adjust the horizontal position, once the position is determined, the limiting structures are arranged on the periphery of the sliding block piece through mutual matching of the pre-tightening piece, the opposite side blocks and the bottom supporting block, the sliding block piece can be surrounded in the middle of the whole through the pre-tightening piece, the opposite side blocks and the bottom supporting block, and therefore the sliding block piece can be fixed conveniently. Due to the fact that a multi-directional limiting structure is additionally arranged, a good pre-tightening effect is achieved, the problem that the sliding block piece shakes after working for a period of time can be avoided, product machining errors are reduced, product surface gaps are reduced, and product quality can be improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to slider pre -tension technical field especially relates to a high accuracy slider pre -tension structure. BACKGROUND

[0002] Multi-axis CNC machine tools refer to CNC machine tools with multiple coordinate axes, which can perform multi-directional and multi-angle cutting on workpieces. These coordinate axes can be linear or rotational, allowing the machine tool to perform machining operations within a complex spatial range. The main advantage of multi-axis CNC machine tools is that they can automate the machining of complex parts, improve machining precision and efficiency, reduce manual intervention, and reduce production costs.

[0003] High-precision sliders refer to sliders with extremely high motion precision and repeatability. They are typically manufactured using precise manufacturing processes and materials, such as high-precision balls and optimized guide rail designs. The high-precision balls inside and the high-precision machining of the guide rail surface allow the slider to maintain minimal deviation and low friction when moving on the guide rail, thereby achieving high-precision linear motion.

[0004] Sliders are essential components of multi-axis CNC machine tools, and their precision directly affects the machining precision of multi-axis CNC machine tools, thereby affecting product quality. Some low-precision sliders can cause the CNC machine tool to not reach the desired position when machining products, resulting in surface gaps and increased errors. Typically, pre-tension structures are used near the slider, but conventional pre-tension structures are too simple and can only provide one-way limiting, leading to displacement of the slider after a period of use and poor stability. Additionally, the slider generates heat during daily use, and if the heat is not quickly absorbed and dissipated, it can cause structural deformation, affecting the service life of the slider. Utility model content

[0005] To solve the above problems, the utility model provides a high-precision slider pre-tension structure to more accurately solve the problems of low slider precision affecting product quality and slider friction overheating causing deformation.

[0006] The utility model is implemented by the following technical solutions:

[0007] The utility model provides a high accuracy slider preloading structure, including the mounting panel, the top of one side outer wall of mounting panel is provided with the preloading spare of adjacent distribution, and one side outer wall both ends of mounting panel all are connected with the opposite side block of screw fixedly, the bottom welding of one side outer wall of mounting panel has the bottom support block of symmetrical distribution, the outer wall of preloading spare is provided with the heat abstractor, and one side outer wall of mounting panel is provided with the slider spare, wherein, preloading spare sets up on the top outer wall of slider spare, bottom support block sets up on the bottom outer wall of slider spare, two opposite side blocks set up on the both sides outer wall of slider spare, and the heat abstractor is close on the top outer wall of slider spare.

[0008] Through the above-mentioned scheme, the slider first can be adjusted with the preloading part sliding cooperation horizontal position, once the position is determined, through the mutual cooperation of preloading part, opposite side block and bottom support block, the limiting structure is arranged around the slider, the preloading part, opposite side block and bottom support block can surround the slider in the middle, because the multidirectional limiting structure is increased, the preloading effect is good, the problem that the slider shakes after working for a period of time can be avoided, the error of product processing is reduced, the gap on the surface of product is reduced, and the quality of product is improved.

[0009] Further, the preloading part includes a preloading block and a guide block, wherein the preloading block is arranged on the top of the slider, and the guide block is arranged on the bottom outer wall of the preloading block; the top outer wall of the slider is provided with symmetrically distributed guide grooves; and the guide block is slidingly connected to the inner wall of the guide grooves.

[0010] Further, the preloading block is provided with a fastening opening on one side outer wall, and the fastening opening is provided with a fastening knob inside; and one end of the fastening knob is screwed to the inner wall of the mounting plate.

[0011] Further, the heat abstractor includes a heat dissipation frame welded to the bottom of one side outer wall of the preloading block, and symmetrically distributed heat dissipation fins arranged on the inner wall of the bottom of the heat dissipation frame; the heat dissipation fins are obliquely arranged in the heat dissipation frame; and the bottom of the heat dissipation frame is attached to the top outer wall of the slider.

[0012] Through the above-mentioned scheme, the heat abstractor is arranged on the preloading part; the surface of the heat dissipation frame attached to the slider can absorb heat generated by the slider during operation; the obliquely arranged heat dissipation fins can volatilize heat on the slider in time; the heat dissipation area is increased; the heat dissipation effect is improved; the problem of deformation caused by high temperature during the operation of the slider is avoided; and the service life of the slider is improved.

[0013] Further, one side outer wall of each of the two preloading parts is rotatably connected with a connecting piece; the inner hole of each of the two connecting pieces is fixedly connected with a shaft pin; the shaft pin includes a plug-in rod and a nut; the plug-in rod is arranged through the inner wall of the two connecting pieces; the nut is attached to the outer wall of the connecting piece and screwed to the outer wall of the plug-in rod.

[0014] Further, the two pre-tightening members are provided with a connecting port on one side wall, and the connecting plate is rotatably connected to the inner wall of the connecting port.

[0015] Further, a through hole is formed in the middle of the other side wall of the mounting plate, and the sliding block member is arranged on one side of the through hole.

[0016] Further, mounting holes for fixing screws are formed in the corners around the one side wall of the mounting plate.

[0017] The utility model discloses beneficial effects:

[0018] The utility model discloses a high-precision sliding block pre-tightening structure, sliding block member can first with pre-tightening member sliding fit adjustment horizontal position, once position is determined well, through the mutual cooperation of pre-tightening member, opposite side block and bottom supporting block, all set up the limiting structure around sliding block member, and pre-tightening member, opposite side block and bottom supporting block can enclose sliding block member in the whole middle, because increase multidirectional limiting structure, have good pre-tightening effect, can avoid the problem that sliding block member works for a period of time and shakes, reduce the error of product processing, reduce the gap on the surface of product, help to improve the quality of product.

[0019] At the same time, the heat dissipation piece is arranged on the pre-tightening member, the surface of the heat dissipation frame adhering to the sliding block member can absorb the heat of the sliding block member during work, and the heat on the sliding block member can be volatilized in time through the obliquely distributed heat dissipation fins, the heat dissipation area is increased, the heat dissipation effect is improved, the problem that the sliding block deforms due to excessively high temperature during work is avoided, and therefore the service life of the sliding block member is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole structure schematic of the utility model Figure One ;

[0021] Figure 2 It is the whole structure schematic of the utility model Figure Two ;

[0022] Figure 3 It is the whole structure schematic of the utility model Figure Three ;

[0023] Figure 4 It is the whole structure schematic of the utility model

[0024] Figure 5 It is the structure schematic when two sliding block members are connected.

[0025] The signs are as follows:

[0026] In the figure: 1, mounting plate; 2, pre-tightening piece; 3, opposite block; 4, bottom supporting block; 5, heat dissipation piece; 6, sliding block piece; 7, pre-tightening block; 8, guide block; 9, fastening opening; 10, heat dissipation frame; 11, heat dissipation fin; 12, connecting piece; 13, shaft pin; 14, connecting opening; 15, guide groove; 16, through hole; 17, mounting hole. DETAILED DESCRIPTION

[0027] In order to more clearly and completely illustrate the technical scheme of the utility model, the utility model will be further described below in combination with the drawings.

[0028] Please refer to Figures 1-5 The utility model provides a high accuracy sliding block pre-tightening structure, including mounting plate 1, the top of one side outer wall of mounting plate 1 is provided with pre-tightening piece 2 of adjacent distribution, and one side outer wall both ends of mounting plate 1 are all connected with opposite block 3 through screw fixation, the bottom of one side outer wall of mounting plate 1 is welded with symmetric distribution bottom supporting block 4, the outer wall of pre-tightening piece 2 is provided with heat dissipation piece 5, and one side outer wall of mounting plate 1 is provided with sliding block piece 6, wherein, pre-tightening piece 2 is set on the top outer wall of sliding block piece 6, bottom supporting block 4 is set on the bottom outer wall of sliding block piece 6, two opposite blocks 3 are respectively set on the both sides outer wall of sliding block piece 6, and heat dissipation piece 5 is tightly attached on the top outer wall of sliding block piece 6.

[0029] Pre-tightening piece 2 includes pre-tightening block 7 and guide block 8, wherein, pre-tightening block 7 is set on the top of sliding block piece 6, and guide block 8 is set on the bottom outer wall of pre-tightening block 7, the top outer wall of sliding block piece 6 is provided with symmetric distribution guide groove 15, and guide block 8 is slidably connected on the inner wall of guide groove 15.

[0030] One side outer wall of pre-tightening block 7 is provided with fastening opening 9, and fastening knob is arranged in fastening opening 9, and one end outer wall of fastening knob is screwed on the inner wall of mounting plate 1.

[0031] Heat dissipation piece 5 includes heat dissipation frame 10 welded on the bottom of one side outer wall of pre-tightening block 7, and equidistance distribution heat dissipation fin 11 is arranged on the bottom inner wall of heat dissipation frame 10, wherein, heat dissipation fin 11 is obliquely distributed in the inside of heat dissipation frame 10, and the bottom of heat dissipation frame 10 is attached on the top outer wall of sliding block piece 6.

[0032] In the embodiment, the slider 6 can be first adjusted in horizontal position in sliding fit with the pre-tightening member 2, once the position is determined, the pre-tightening member 2, the opposite block 3 and the bottom supporting block 4 are cooperated with each other, the limiting structure is arranged around the slider 6, the pre-tightening member 2, the opposite block 3 and the bottom supporting block 4 can surround the slider 6 in the middle of the whole, due to the multi-directional limiting structure, the pre-tightening effect is good, the problem of shaking of the slider 6 after working for a period of time can be avoided, the error of product processing is reduced, the gap on the surface of the product is reduced, and the quality of the product is improved.

[0033] Meanwhile, the heat dissipation member 5 is arranged on the pre-tightening member 2, the heat dissipation frame 10 is attached to the surface of the slider 6 and can absorb the heat generated by the slider 6 during working, and the heat dissipation fins 11 are distributed in an inclined manner and can volatilize the heat on the slider 6 in time, the heat dissipation area is increased, the heat dissipation effect is improved, the problem of deformation due to high temperature of the slider during working is avoided, and the service life of the slider 6 is improved.

[0034] The connecting plates 12 are rotationally connected to the outer walls of the two pre-tightening members 2, the shaft pins 13 are fixedly connected in the inner holes of the two connecting plates 12, the shaft pins 13 internally include plug rods and nuts, the plug rods are arranged through the inner walls of the two connecting plates 12, and the nuts are attached to the outer walls of the connecting plates 12 and screwed on the outer walls of the plug rods.

[0035] The connecting ports 14 are formed in the outer walls of the two pre-tightening members 2, and the connecting plates 12 are rotationally connected to the inner walls of the connecting ports 14.

[0036] The through hole 16 is formed in the middle position of the other outer wall of the mounting plate 1, and the slider 6 is arranged on one side of the through hole 16.

[0037] The mounting holes 17 for fixing screws are formed in the corner positions around the outer wall of the mounting plate 1.

[0038] During installation of the device, first, the horizontal position of the slider 6 is adjusted in sliding fit with the pre-tightening member 2, then the pre-tightening block 7 is fixed above the slider 6 taking the slider 6 as the initial position, the two opposite blocks 3 are fixed to the two sides of the slider 6, the bottom of the slider 6 is supported by the bottom supporting block 4, the heat dissipation frame 10 absorbs the heat generated by the slider 6 during working, and the heat dissipation fins 11 volatilize the heat on the slider 6, and the service life of the slider 6 is improved.

[0039] Of course, the utility model also can have other multiple implementation manners, based on the embodiment, other implementation manners obtained by the ordinary skilled in the art without any creative labor all belong to the range protected by the utility model.

Claims

1. A high-precision slider preload structure, characterized in that, The utility model provides a kind of installation plate, the top of the outer wall of one side of the installation plate is provided with adjacent distribution pre-tightening piece, and the both ends of the outer wall of one side of the installation plate are fixedly connected with opposite side block by screw, the bottom of the outer wall of one side of the installation plate is welded with symmetrically distributed bottom supporting block, the outer wall of pre-tightening piece is provided with heat dissipation piece, and the outer wall of one side of installation plate is provided with sliding block piece, wherein pre-tightening piece is arranged on the top outer wall of sliding block piece, bottom supporting block is arranged on the bottom outer wall of sliding block piece, two opposite side blocks are respectively arranged on the two outer walls of sliding block piece, and heat dissipation piece is tightly attached on the top outer wall of sliding block piece.

2. The high-precision slider pre-tightening structure according to claim 1, characterized in that, The pre-tightening piece includes pre-tightening block and guide block, wherein the pre-tightening block is arranged on the top of the sliding block piece, and the guide block is arranged on the bottom outer wall of the pre-tightening block, the top outer wall of the sliding block piece is provided with symmetrically distributed guide grooves, and the guide block is slidingly connected to the inner wall of the guide grooves.

3. The high-precision slider pre-tightening structure according to claim 2, characterized in that, The outer wall of one side of the pre-tightening block is provided with a fastening opening, and the fastening knob is arranged inside the fastening opening, and one end of the fastening knob is screwed to the inner wall of the installation plate.

4. The high-precision slider pre-tightening structure according to claim 1, characterized in that, The heat dissipation piece includes a heat dissipation frame welded to the bottom of the outer wall of one side of the pre-tightening block, and equidistantly distributed heat dissipation fins arranged on the inner wall of the bottom of the heat dissipation frame, wherein the heat dissipation fins are inclinedly distributed inside the heat dissipation frame, and the bottom of the heat dissipation frame is attached to the top outer wall of the sliding block piece.

5. The high-precision slider pre-tightening structure according to claim 1, wherein The inner hole of the outer wall of one side of the two pre-tightening pieces is rotatably connected with a connecting piece, and a shaft pin is fixedly connected in the inner hole of the connecting piece, the shaft pin includes a plug rod and a nut, the plug rod is arranged through the inner wall of the two connecting pieces, and the nut is attached to the outer wall of the connecting piece and screwed to the outer wall of the plug rod.

6. The high-precision slider pre-tightening structure according to claim 1, wherein The outer wall of one side of the two pre-tightening pieces is provided with a connecting opening, and the connecting piece is rotatably connected to the inner wall of the connecting opening.

7. The high-precision slider pre-tightening structure according to claim 1, characterized by, A through hole is formed in the middle of the other outer wall of the installation plate, and the sliding block piece is arranged on one side of the through hole.

8. The high-precision slider pre-tightening structure according to claim 1, characterized by, Mounting holes for fixing screws are formed in the corners around the outer wall of one side of the installation plate.