Linear guide rail straightness detection device

Abstract

The utility model discloses a linear guide rail straightness detection device which comprises a base, a placing plate, a reference baffle plate, a light-transmitting groove, a mounting groove, a light source and a lifting device, the right side of the upper end face of the placing plate is fixedly provided with the reference baffle plate, and the left end face of the reference baffle plate is perpendicular to the upper end face of the placing plate; the upper end face of the placement plate is provided with a light-transmitting groove in the front-back direction, the length of the light-transmitting groove is larger than that of the linear guide rail to be detected, the inner wall of the right side of the light-transmitting groove and the left end face of the reference baffle are located on the same plane, the placement plate is internally provided with a long-strip-shaped installation groove in the front-back direction, and the installation groove is communicated with the light-transmitting groove; according to the utility model, the right lower part of the placing plate is hinged with the base, and the supporting assembly abuts against the left side area of the lower end surface of the placing plate, so that the linear guide rail can be attached to the reference baffle plate by virtue of self gravity when the placing plate inclines downwards from left to right, the attachment is reliable, and the detection result is more accurate.

Description

Linear guide straightness testing device Technical Field

[0001] This utility model relates to the technical field of structural steel, and in particular to the technical field of linear guides. Background Technology

[0002] Linear guides can be divided into three types: roller linear guides, cylindrical linear guides, and ball linear guides. They are used to support and guide moving parts to perform reciprocating linear motion in a given direction. Rolling linear guides need to achieve good straightness during production, and the straightness of linear guides is one of their quality inspection items.

[0003] Existing patent CN110631516A discloses a linear guide straightness testing fixture, which determines whether the straightness of the linear guide is qualified by checking whether there is a light-transmitting gap after the linear guide is attached to the straightness reference strip. However, the attachment of the linear guide to the straightness reference strip needs to be done manually, making it difficult to determine whether the attachment is reliable. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a linear guide straightness detection device that enables the linear guide to fit reliably with the reference baffle, thereby improving the accuracy of the detection.

[0005] To achieve the above objectives, this utility model proposes a linear guide straightness detection device, including a base, a placement plate, a reference baffle, a light-transmitting groove, a mounting groove, a light source, and a lifting device. A reference baffle is fixed to the right side of the upper surface of the placement plate, and the left end face of the reference baffle is perpendicular to the upper surface of the placement plate. A light-transmitting groove running in a front-to-back direction is formed on the upper surface of the placement plate. The length of the light-transmitting groove is greater than the length of the linear guide to be tested. The right inner wall of the light-transmitting groove is on the same plane as the left end face of the reference baffle. An elongated mounting groove running in a front-to-back direction is provided inside the placement plate. The mounting groove is connected to the light-transmitting groove, and the length direction of the mounting groove is parallel to the length direction of the light-transmitting groove. A light source is provided inside the mounting groove, and the light-transmitting groove is located in the exposure area of ​​the light source. A base is provided below the placement plate, and the lower right part of the placement plate is hinged to the base. A vertically set lifting device is fixed on the base. The lifting device is connected to a support component. The lifting device drives the support component to move vertically up and down. The support component abuts against the left side area of ​​the lower surface of the placement plate.

[0006] Preferably, the placement plate and the reference baffle are an integral structure.

[0007] Preferably, a fixed shaft is fixed to both the front and rear sides of the placement plate, and the two fixed shafts are located on the same central axis. The base is provided with two connecting seats that correspond one-to-one with the two fixed shafts. A bearing seat is installed on the connecting seat, and a bearing is provided inside the bearing seat. The bearing is sleeved on the fixed shaft.

[0008] Preferably, the support assembly consists of a bracket and a roller. The bracket is fixed to the lifting device, and a roller running in a front-to-back direction is installed on the bracket, with the roller abutting against the lower end face of the placement plate.

[0009] Preferably, an auxiliary baffle is fixed to both the front and rear sides of the upper surface of the placement plate, with the auxiliary baffle close to the reference baffle.

[0010] The beneficial effects of this utility model are as follows: By hinged to the lower right part of the placement plate and the base, and with the support component abutting against the left side of the lower end face of the placement plate, the linear guide rail can rely on its own weight to fit against the reference baffle when the placement plate tilts downward from left to right. The fit is reliable, making the test results more accurate. The auxiliary baffle prevents the linear guide rail from slipping off the front and rear sides of the placement plate during the test, making the equipment safer to use.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 is a front view of the linear guide straightness detection device of this utility model;

[0013] Figure 2 is a partial side view of the linear guide straightness detection device of this utility model.

[0014] In the diagram: 1-base, 2-placement plate, 11-connecting seat, 12-bearing seat, 13-bearing, 15-lifting device, 16-bracket, 17-roller, 20-reference baffle, 21-light-transmitting groove, 22-mounting groove, 23-light source, 24-auxiliary baffle, 25-fixed shaft. Detailed Implementation

[0015] Example 1:

[0016] Referring to Figure 1, the linear guide straightness detection device of this utility model includes a base 1, a placement plate 2, a reference baffle 20, a light-transmitting groove 21, a mounting groove 22, a light source 23, and a lifting device 15. A reference baffle 20 is fixed on the right side of the upper end face of the placement plate 2, and the left end face of the reference baffle 20 is perpendicular to the upper end face of the placement plate 2.

[0017] The upper surface of the placement plate 2 has a light-transmitting groove 21 running back and forth. The length of the light-transmitting groove 21 is greater than the length of the linear guide rail to be tested. The right inner wall of the light-transmitting groove 21 and the left end face of the reference baffle 20 are on the same plane.

[0018] The placement plate 2 has a long, narrow mounting groove 22 running back and forth inside. The mounting groove 22 is connected to the light-transmitting groove 21. The length direction of the mounting groove 22 is parallel to the length direction of the light-transmitting groove 21. A light source 23 is provided inside the mounting groove 22, and the light-transmitting groove 21 is located in the exposure area of ​​the light source 23.

[0019] A base 1 is provided below the placement plate 2, and the lower right part of the placement plate 2 is hinged to the base 1.

[0020] A vertically arranged lifting device 15 is fixed on the base 1. The lifting device 15 has a hydraulic cylinder or a pneumatic cylinder. The lifting device 15 is connected to a support component. The lifting device 15 drives the support component to move vertically up and down. The support component abuts against the left side of the lower end face of the placement plate 2.

[0021] Example 2:

[0022] To ensure the perpendicularity of the reference baffle 20 to the placement plate 2, the placement plate 2 and the reference baffle 20 are an integral structure.

[0023] Example 3:

[0024] A fixed shaft 25 is fixed on both the front and rear sides of the placement plate 2. The two fixed shafts 25 are located on the same central axis. The base 1 is provided with two connecting seats 11 that correspond one-to-one with the two fixed shafts 25. A bearing seat 12 is installed on the connecting seat 11. A bearing 13 is provided inside the bearing seat 12. The bearing 13 is sleeved on the fixed shaft 25.

[0025] The support assembly consists of a bracket 16 and a roller 17. The bracket 16 is fixed to the lifting device 15. A roller 17 running back and forth is installed on the bracket 16, and the roller 17 abuts against the lower end face of the placement plate 2.

[0026] Example 4:

[0027] To prevent the linear guide rail from slipping off the front and rear sides of the placement plate 1 during the testing process, an auxiliary baffle 24 is fixed on the front and rear sides of the upper surface of the placement plate 2, and the auxiliary baffle 24 is close to the reference baffle 20.

[0028] The working process of this utility model:

[0029] In operation, the linear guide rail straightness testing device of this utility model uses the lifting device 15 to move the support component upward, causing the placement plate 1 to tilt downward, placing the linear guide rail on the placement plate 1. The linear guide rail is in contact with the reference baffle 20. Then, the light source 23 is turned on to see if light passes through the gap between the linear guide rail and the reference baffle 20. If no light passes through, it means that the straightness is qualified; if light passes through, it means that the straightness is unqualified.

[0030] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A linear guide straightness detection device, characterized by: The device includes a base (1), a placement plate (2), a reference baffle (20), a light-transmitting groove (21), a mounting groove (22), a light source (23), and a lifting device (15). A reference baffle (20) is fixed on the right side of the upper surface of the placement plate (2). The left end face of the reference baffle (20) is perpendicular to the upper surface of the placement plate (2). A light-transmitting groove (21) with a front-to-back orientation is provided on the upper surface of the placement plate (2). The length of the light-transmitting groove (21) is greater than the length of the linear guide rail to be tested. The right inner wall of the light-transmitting groove (21) is on the same plane as the left end face of the reference baffle (20). A long strip-shaped mounting device with a front-to-back orientation is provided inside the placement plate (2). The mounting groove (22) is connected to the light-transmitting groove (21). The length direction of the mounting groove (22) is parallel to the length direction of the light-transmitting groove (21). The mounting groove (22) is equipped with a light source (23). The light-transmitting groove (21) is located in the exposure area of ​​the light source (23). A base (1) is provided below the placement plate (2). The lower right part of the placement plate (2) is hinged to the base (1). A vertically set lifting device (15) is fixed on the base (1). The lifting device (15) is connected to a support component. The lifting device (15) drives the support component to move vertically up and down. The support component abuts against the left side of the lower end face of the placement plate (2).

2. The linear guide straightness detection device according to claim 1, wherein: The placement plate (2) and the reference baffle (20) are an integral structure.

3. The linear guide straightness detection device according to claim 1, wherein: The front and rear sides of the placement plate (2) are each fixed with a fixed shaft (25). The two fixed shafts (25) are located on the same central axis. The base (1) is provided with two connecting seats (11) that correspond one-to-one with the two fixed shafts (25). The connecting seats (11) are equipped with bearing seats (12). The bearing seats (13) are provided with bearings (13) inside the bearing seats (12). The bearings (13) are sleeved on the fixed shafts (25).

4. The linear guide straightness detection device as described in claim 1, characterized in that: The support assembly consists of a bracket (16) and a roller (17). The bracket (16) is fixed to the lifting device (15). A roller (17) running in a front-to-back direction is installed on the bracket (16), and the roller (17) abuts against the lower end face of the placement plate (2).

5. The linear guide straightness detection device as described in claim 1, characterized in that: An auxiliary baffle (24) is fixed on the front and rear sides of the upper surface of the placement plate (2), and the auxiliary baffle (24) is close to the reference baffle (20).

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