Linear guide rail sliding block device

Abstract

The utility model relates to a linear guide rail sliding block device which is designed for solving the technical problems that similar products are poor in stability, low in load and large in noise, and particularly, an outer R chamfer at an outer ring groove is not provided with an R-face groove corresponding to a guide rail R-face convex rib attaching structure design of a linear guide rail. The device is characterized in that a bearing of the device is an outer R symmetrical guide rail bearing, outer R chamfers are symmetrically arranged on the two sides of a notch of a bearing R face groove in the middle of the outer diameter of an outer ring of the outer R symmetrical guide rail bearing, and guide rail R face protruding ribs are arranged on the two sides of the edge of the notch of the outer side of a limiting guide groove of the linear guide rail; bearing R-surface grooves of the outer R-symmetric guide rail bearings which are symmetrically arranged in pairs are in rolling contact with guide rail R-surface convex ribs on the two sides of the linear guide rail, and meanwhile, outer R chamfers on the two sides of the bearing R-surface grooves at the outer rings of the outer R-symmetric guide rail bearings are respectively connected with the inner walls of one sides of the guide rail R-surface convex ribs in limiting guide grooves of the linear guide rail; and the outer diameter of a guide rail R surface convex rib of the linear guide rail is clamped and propped to perform linear sliding.

Description

Technical Field

[0001] The utility model relates to a guide rail slider, and is a linear guide rail slider device. Background Art

[0002] A guide rail slider is a slider that reciprocates linearly along a guide rail in equipment or products such as molds. It mainly consists of a slider, bearings, and a guide rail. The slider is mainly applied to a sliding friction guide rail and is used to support and guide moving parts to perform reciprocating linear motion in a given direction. According to different bearings, it is divided into roller linear guide rails, cylindrical linear guide rails, ball linear guide rails, or square ball linear guide rails, double-axis core roller linear guide rails, and single-axis core linear guide rails. The groove shapes of the guide rail system are diverse, and there are two representative ones. One is called Gothic (or pointed arch), and its shape is an extension of a semicircle with the contact point at the vertex; the other is an arc shape, which can also play the same role. For example, the application number disclosed in the Chinese patent document is 201510022786.1, the authorization announcement date is February 22, 2017, and the invention name is "Guide Rail Slider Bearing and Its Processing Technology"; another example is the application number disclosed in the Chinese patent document is 201510308619.3, the authorization announcement date is September 22, 2017, and the invention name is "Guide Rail Slider Device and Its Processing Technology"; the arc-shaped groove structure design at the outer ring chute of the above products and similar products is not good, resulting in poor high-speed sliding stability, low load, and large noise. Summary of the Invention

[0003] To overcome the above deficiencies, the purpose of the present utility model is to provide a linear guide rail slider device to the field of technology, so as to solve the technical problems that the arc-shaped groove structure design at the outer ring chute of existing similar products is not good, resulting in poor high-speed sliding stability, low load, and large noise, especially the lack of a fitting structure design between the R surface groove corresponding to the outer R chamfer at the outer ring groove and the guide rail R surface rib of the linear guide rail. The purpose is achieved through the following technical solutions.

[0004] A linear guide rail slider device, in which four bearings of the device are symmetrically arranged in pairs on one side of the connecting bracket, or six bearings are symmetrically arranged on both sides on one side of the connecting bracket, and the bearings symmetrically arranged on both sides are clamped and linearly slide in the limiting guide grooves on both sides of the linear guide rail; it is characterized in that the bearings are outer R symmetric guide rail bearings, and bearing R surface grooves are respectively arranged in the middle of the outer diameter of the outer ring of the outer R symmetric guide rail bearings, and outer R chamfers are symmetrically arranged on both sides of the notch of the bearing R surface groove, and guide rail R surface ribs are respectively arranged on the edges of the outer notch of the limiting guide groove of the linear guide rail; when the bearing R surface groove of the outer R symmetric guide rail bearing is in rolling contact with the guide rail R surface rib of the linear guide rail, the outer R chamfers on both sides of the bearing R surface groove at the outer ring of the outer R symmetric guide rail bearing are respectively in clamping contact with the inner wall of one side of the guide rail R surface rib in the limiting guide groove of the linear guide rail and the outer diameter of the guide rail R surface rib of the linear guide rail to perform linear sliding. Thus, not only the outer side of the bearing R surface groove of the outer ring is embedded in the limiting guide groove of the linear guide rail for sliding, but also the bearing R surface groove of the outer ring is in rolling contact with the guide rail R surface rib of the linear guide rail through the outer R chamfer, improving the stability during its high-speed sliding.

[0005] A square edge groove is provided at the step of the shaft part extending from the inner ring shaft of the outer R symmetric guide rail bearing to the outer diameter of the outer ring. Thus, it is convenient for a wrench to adjust the tightness between the outer R symmetric guide rail bearing and the connecting bracket through the square edge groove.

[0006] Two rows of steel balls are provided between the outer ring groove of the outer R symmetric guide rail bearing and the inner ring groove at one end of the inner ring shaft. Dust covers are provided between the outer ring openings of the two outer rings and the inner ring openings of the inner ring shaft.

[0007] The shaft part of the other end of the inner ring shaft of the outer R symmetric guide rail bearing extending out of the outer ring and connected to the connecting bracket is arranged in a concentric or eccentric manner.

[0008] The structure of the utility model is reasonably designed, convenient for installation, use and adjustment, with good stability, high load, low noise and long service life; it is suitable for use as a linear guide rail slider device of sewing machinery such as embroidery machines and quilting machines, and for the structural improvement of similar products. Description of the Drawings

[0009] Figure 1 It is a partially sectional structural schematic diagram of the utility model in the use state.

[0010] Figure 2 is Figure 1 The sectional structural schematic diagram of the outer R symmetric guide rail bearing of

[0011] Figure 3 is Figure 2 The three-dimensional structural schematic diagram of

[0012] Figure 4 is Figure 3Schematic side structure diagram.

[0013] Reference numerals and names of the drawings: 1. Outer R symmetric guide rail bearing, 101. Outer ring, 1011. Bearing R surface groove, 102. Steel ball, 103. Inner ring shaft, 1031. Square side groove, 2. Linear guide rail, 201. Limit guide groove, 202. Guide rail R surface rib, 3. Connection bracket. Embodiment

[0014] Now, in conjunction with the drawings, the structure and use of the present utility model will be further described. As Figures 1-4 shown, four of the bearings of the device are symmetrically arranged in pairs on one side of the connection bracket 3, or six are symmetrically arranged on both sides on one side of the connection bracket, and the bearings symmetrically arranged on both sides are clamped and linearly slide in the limit guide grooves 201 on both sides of the linear guide rail 2. Specifically: the above-mentioned bearing is an outer R symmetric guide rail bearing 1, and bearing R surface grooves 1011 are respectively provided in the middle of the outer diameter of the outer ring 101 of the outer R symmetric guide rail bearing. Outer R chamfers are symmetrically provided on both sides of the notch of the bearing R surface groove. Guide rail R surface ribs 202 are respectively provided on the edges of the outer notch of the limit guide groove 201 of the linear guide rail; when the bearing R surface groove of the outer R symmetric guide rail bearing is in rolling contact with the guide rail R surface rib of the linear guide rail, the outer R chamfers on both sides of the bearing R surface groove at the outer ring of the outer R symmetric guide rail bearing are respectively in clamping contact with the inner wall on one side of the guide rail R surface rib in the limit guide groove of the linear guide rail and the outer diameter of the guide rail R surface rib of the linear guide rail for linear sliding.

[0015] At the same time, a square side groove 1031 is provided at the step of the shaft part at the outer diameter of the outer ring where the inner ring shaft 103 of the above-mentioned outer R symmetric guide rail bearing extends. Two rows of steel balls 102 are provided between the outer ring groove of the outer R symmetric guide rail bearing and the inner ring groove at one end of the inner ring shaft. The shaft part where the other end of the inner ring shaft of the outer R symmetric guide rail bearing extends out of the outer ring and is connected to the connection bracket is arranged concentrically or eccentrically.

[0016] To sum up, on the basis of the original linear guide rail, the device originally used steel balls inside the slider to rotate and carry the load in a circulating manner, and now it is changed to use four or six outer R symmetric guide rail bearings to rotate and carry the load. The outer R size is the same as the radius of the steel balls originally used inside the slider. The bearing R surface groove of the outer R symmetric guide rail bearing is in rolling contact with the guide rail R surface rib of the linear guide rail. As long as a slider is replaced for all linear guide rails, the problems of the original steel ball circulation that cannot run at high speed, low load, and high noise can be solved. At the same time, on the basis of the original guide rail bearing, the above-mentioned outer R symmetric guide rail bearing has two symmetrically arranged outer R chamfers added to the outer ring, a square side groove added to the inner ring shaft, and a wrench is used to adjust the tightness.

Claims

1. A linear guide slider device, wherein four bearings of the device are symmetrically arranged on one side of a connecting bracket (3) in pairs, or six bearings are symmetrically arranged on one side of the connecting bracket on both sides, and the bearings symmetrically arranged on both sides are clamped and arranged in the limiting guide grooves (201) on both sides of the linear guide (2) to slide linearly; characterized in that The bearing is an external R-symmetric guide bearing (1), wherein the middle of the outer diameter of the outer ring (101) of the external R-symmetric guide bearing is provided with a bearing R-surface groove (1011), and the groove openings of the bearing R-surface groove are symmetrically provided with external R chamfers on both sides, and the edges of the groove openings of the limiting guide groove (201) of the linear guide (2) are provided with guide R-surface convex ribs (202); while the bearing R-surface groove of the external R-symmetric guide bearing is in rolling contact with the guide R-surface convex rib of the linear guide, the external R chamfers on both sides of the bearing R-surface groove of the outer ring of the external R-symmetric guide bearing are clamped against the inner wall of one side of the guide R-surface convex rib in the limiting guide groove of the linear guide, and the outer diameter of the guide R-surface convex rib of the linear guide, and slide linearly.

2. The linear guide slider device according to claim 1, characterized in that A square edge groove (1031) is provided at the step of the outer diameter ring opening of the inner ring shaft (103) of the outer R symmetrical guide rail bearing (1) extending out of the outer ring (101).

3. The linear guide slider device according to claim 1, characterized in that Two rows of steel balls (102) are provided between an outer ring groove at an outer ring (101) of the outer R-symmetrical guide bearing (1) and an inner ring groove at one end of an inner ring shaft (103).

4. The linear guide slider device according to claim 1, characterized in that The other end of the inner ring shaft (103) of the outer R-symmetrical guide rail bearing (1) extends out of the outer ring (101) and is connected to the shaft portion of the connecting bracket (3) in a centered or eccentric arrangement.

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