Linear guide rail pre-pressure detection device

Abstract

The utility model relates to a linear guide rail pre-pressure detection device which is used for detecting pre-pressure between a sliding block and a sliding rail of a linear guide rail. The linear guide rail pre-pressure detection device comprises a fixing mechanism, a thrust meter and a moving mechanism. The fixing mechanism fixes a slide rail of a linear guide rail to be detected, so that the slide rail extends along a first horizontal direction. The moving mechanism is arranged on the side of the fixing mechanism, and the thrust meter is installed on a movable part of the moving mechanism; the moving mechanism drives the thrust meter to move in the first horizontal direction, so that a measuring head of the thrust meter is in contact with a sliding block of the linear guide rail to be detected and pushes the sliding block to slide along the sliding rail, and the thrust meter is used for outputting pre-pressure between the sliding block and the sliding rail. The thrust meter is installed on the moving mechanism, the moving mechanism is used for driving the thrust meter to push the sliding block to move along the sliding rail so as to detect the pre-pressure between the sliding block and the sliding rail, the value of the pre-pressure between the sliding block and the sliding rail can be directly read by the thrust meter, measurement is accurate, the overall structure is simple, cost is low, and use is convenient.

Description

Technical Field

[0001] The present application relates to the field of linear guide rail detection equipment, and specifically to a linear guide rail preload detection device. Background Art

[0002] Linear guides are mainly composed of rails and sliders. Linear guides with different preload levels have different preloads between the slider and the rail. For linear guide users, after buying multiple linear guides, sometimes they need to test whether the purchased linear guides can reach the claimed preload, or for linear guides that have been used for a period of time, they also want to test whether the preload has changed.

[0003] The existing method for detecting the preload of a linear guide rail is often that the user pushes the slider by hand and makes a judgment based on experience, but this detection method is not very accurate. Utility Model Content

[0004] In order to solve the problem that the existing linear guide preload detection method has low accuracy, the present application provides a linear guide preload detection device with high accuracy.

[0005] The technical solution of the present application is as follows: a linear guide rail preload detection device, used to detect the preload between the slider and the slide rail of the linear guide rail; the linear guide rail preload detection device includes a fixing mechanism, a thrust meter and a moving mechanism; wherein:

[0006] The fixing mechanism is configured to fix the slide rail of the linear guide rail to be detected so that the slide rail extends along a first horizontal direction;

[0007] The moving mechanism is arranged on the side of the fixed mechanism, and the thrust meter is installed on the movable part of the moving mechanism;

[0008] The moving mechanism is configured to drive the thrust meter to move along the first horizontal direction, so that the measuring head of the thrust meter contacts the slider of the linear guide rail to be tested and pushes the slider to slide along the slide rail. The thrust meter is used to output the preload between the slider and the slide rail.

[0009] By installing the thrust gauge on the moving mechanism, using the moving mechanism to provide the thrust gauge with a stable speed and output force, the thrust gauge is driven to push the slider along the slide rail to detect the pre-pressure between the slider and the slide rail. The pre-pressure value between the slider and the slide rail can be directly read from the thrust gauge, with accurate measurement, simple overall structure, low cost and easy use.

[0010] Optionally, the fixing mechanism includes a workbench, a limiter and a clamping assembly;

[0011] The workbench is used to carry the slide rail, and the slide rail has a first side surface and a second side surface along the length direction;

[0012] The limiting members are arranged on the table surface of the workbench, and the limiting members are arranged continuously or at intervals along the first horizontal direction;

[0013] The clamping assembly is arranged on the table surface of the workbench, and is used for pushing the first side surface of the slide rail so that the second side surface of the slide rail is closely attached to the limiting member.

[0014] The slide rail is fixed by cooperating with the limiter and the clamping assembly, which has a simple structure, low cost and convenient assembly and disassembly.

[0015] Optionally, the limiting member is a vertical limiting surface provided on the table surface of the workbench and extending along the first horizontal direction, and the height of the vertical limiting surface is smaller than the distance between the bottom surface of the slider and the bottom surface of the slide rail.

[0016] By directly setting a vertical limit surface on the table surface of the workbench as a limit piece, there is no need to configure separate components, which can reduce the number of components in the entire device; by limiting the height of the vertical limit surface, the limit surface can be prevented from interfering with the sliding of the slider.

[0017] Optionally, the pressing assembly includes at least two pushing assemblies, and the pushing assembly includes a baffle and a fastener;

[0018] The baffle is horizontally arranged on the table surface of the workbench, and the height of the baffle is less than the distance between the bottom surface of the slider and the bottom surface of the slide rail;

[0019] The first end of the blocking piece is configured to push the first side surface of the slide rail, and the second end of the blocking piece is fixed on the workbench by a fastener.

[0020] The clamping assembly uses a baffle and a fastener. The baffle is pushed to tighten the slide rail, and the baffle is fixed by the fastener to fix the slide rail. By limiting the height of the baffle, the baffle can be prevented from interfering with the movement of the slider.

[0021] Optionally, the fastener is a bolt, a through hole for the bolt to pass through is formed at the second end of the baffle, and a threaded hole matching the bolt is processed on the workbench.

[0022] The fasteners are bolts, and the baffle can be rotated by loosening the bolts, thereby loosening the pressure on the slide rail, which is easy to operate.

[0023] Optionally, at least two rows of threaded hole groups are processed on the workbench, each row of threaded hole groups includes at least two threaded holes spaced apart along the first horizontal direction, and the vertical distances between any two rows of threaded hole groups and the limiting member are different.

[0024] By arranging a plurality of rows of threaded hole groups on the workbench, the clamping assembly can adapt to the fixing of slide rails of various widths, thereby improving the application range of the device.

[0025] Optionally, the fixing mechanism further includes a support seat, the height of which is adjustable, the support seat is arranged on the side of the workbench, and the support seat is used to support the portion of the slide rail extending out of the workbench.

[0026] By providing a support seat, an excessively long slide rail can be supported to ensure the stability of the slide rail during measurement.

[0027] Optionally, the moving mechanism includes a translation drive mechanism, a thrust gauge mounting frame, and a height adjustment mechanism;

[0028] The thrust meter mounting frame is installed at the driving end of the translation driving mechanism. The thrust meter is installed on the thrust meter mounting frame through a height adjustment mechanism. The height adjustment mechanism is used to adjust the height position of the thrust meter on the thrust meter mounting frame.

[0029] The height of the thrust gauge can be adjusted by a height adjustment mechanism, so that the device can be adapted to the detection of preload pressure of linear guide rails of different specifications.

[0030] Optionally, the height adjustment mechanism includes a back plate and at least two back plate fasteners;

[0031] Two vertical guide grooves are provided on the thrust meter mounting frame;

[0032] The back plate fastener passes through the guide groove to fix the back plate on the thrust meter mounting bracket, and the thrust meter is fixed on the back plate.

[0033] The height adjustment mechanism adopts a combination of a guide groove and a back plate fastener, which has a simple structure, low cost and convenient adjustment.

[0034] Optionally, the height adjustment mechanism further includes a positioning assembly, and the positioning assembly includes a top screw and a positioning block;

[0035] The positioning block is fixed on the thrust meter mounting frame and arranged above the back plate, the top screw is rotatably connected to the positioning block, and the free end of the top screw passes through the positioning block and is screwed to the top surface of the back plate;

[0036] The back plate is configured to move along the guide groove under the drive of the top screw, and the back plate fastener is configured to fix the back plate on the thrust meter mounting bracket after the back plate is moved into position.

[0037] The height of the back panel can be finely adjusted by loosening the back panel fasteners in the guide groove and twisting the top screw. After the height is adjusted to the right position, the back panel fasteners in the guide groove can be locked. The structure is simple, the cost is low, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of a three-dimensional structure of an optional embodiment of the present application;

[0039] Figure 2 for Figure 1 A top view of

[0040] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of the fixing mechanism in FIG.

[0041] Figure 4 for Figure 3 Top view of the .

[0042] Figure 1 to Figure 4 Including:

[0043] Linear guide preload detection device 1;

[0044] The fixing mechanism 10, the workbench 11, the limiting member 12, the vertical limiting surface 121, the pressing assembly 13, the pushing assembly 131, the blocking piece 132, the fastener 133, the through hole 134, the threaded hole 135, and the supporting seat 14;

[0045] Thrust meter 20;

[0046] Moving mechanism 30, translation driving mechanism 31, thrust meter mounting frame 32, guide slot 321, height adjustment mechanism 33, back plate 331, positioning assembly 332, top screw 333, positioning block 334;

[0047] Linear guide rail 100 , slider 101 , slide rail 102 , first side surface 103 , second side surface 104 , and first horizontal direction 105 . DETAILED DESCRIPTION

[0048] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0049] Figure 1 , Figure 2 The figure shows a linear guide preload detection device 1, which is used to detect the preload between a slider 101 and a slide rail 102 of a linear guide 100.

[0050] The linear guide preload detection device 1 comprises a fixing mechanism 10, a thrust gauge 20 and a moving mechanism 30. The fixing mechanism 10 and the moving mechanism 30 are both fixed on a base.

[0051] Wherein: the fixing mechanism 10 is configured to fix the slide rail 102 of the linear guide rail 100 to be detected, so that the slide rail 102 extends along the first horizontal direction 105;

[0052] The moving mechanism 30 is arranged on the side of the fixing mechanism 10 , and the thrust meter 20 is installed on the movable part of the moving mechanism 30 ;

[0053] The moving mechanism 30 is configured to drive the thrust gauge 20 to move along the first horizontal direction 105, so that the measuring head of the thrust gauge 20 contacts the slider 101 of the linear guide 100 to be detected, and pushes the slider 101 to slide along the slide rail 102. The thrust gauge 20 is used to output the pre-pressure between the slider 101 and the slide rail 102.

[0054] Specifically, when the thrust gauge 20 is pushed, when the reading of the thrust gauge 20 is stable, the stable reading is the pre-pressure between the slider 101 and the slide rail 102 .

[0055] By installing the thrust gauge 20 on the moving mechanism 30, using the moving mechanism 30 to provide a stable speed and output force for the thrust gauge 20, the thrust gauge 20 is driven to push the slider 101 to move along the slide rail 102 to detect the pre-pressure between the slider 101 and the slide rail 102. The pre-pressure value between the slider 101 and the slide rail 102 can be directly read from the thrust gauge 20, with accurate measurement, simple overall structure, low cost and easy use.

[0056] As an optional implementation, the fixing mechanism 10 includes a workbench 11 , a limiting member 12 and a pressing assembly 13 .

[0057] The workbench 11 is used to carry the slide rail 102, and the slide rail 102 has a first side surface 103 and a second side surface 104 along the length direction;

[0058] The limiting members 12 are arranged on the surface of the workbench 11, and the limiting members 12 are arranged continuously or at intervals along the first horizontal direction 105;

[0059] The clamping assembly 13 is disposed on the table surface of the workbench 11 , and is used to push the first side surface 103 of the slide rail 102 so that the second side surface 104 of the slide rail 102 is tightly attached to the limiting member 12 .

[0060] The slide rail 102 is fixed by the cooperation of the limiting member 12 and the pressing assembly 13, which has a simple structure, low cost and convenient assembly and disassembly.

[0061] like Figure 3 , Figure 4 As shown, optionally, the limiting member 12 is a vertical limiting surface 121 arranged on the surface of the workbench 11 and extending along the first horizontal direction 105 , and the height of the vertical limiting surface 121 is less than the distance between the bottom surface of the slider 101 and the bottom surface of the slide rail 102 .

[0062] By directly setting a vertical limit surface 121 on the surface of the workbench 11 as the limit member 12, there is no need to configure separate components, which can reduce the number of components in the entire device; by limiting the height of the vertical limit surface 121, the limit surface can be prevented from interfering with the sliding of the slider 101.

[0063] Optionally, the limiting member 12 can also be a plurality of limiting columns arranged on the table surface of the workbench 11, each limiting column is arranged side by side and spaced along the first horizontal direction 105, and the height of the limiting column is less than the distance between the bottom surface of the slider 101 and the bottom surface of the slide rail 102.

[0064] Optionally, the pressing assembly 13 includes at least two pushing assemblies 131 .

[0065] The pushing assembly 131 includes a baffle 132 and a fastener 133; the baffle 132 is horizontally arranged on the table surface of the workbench 11, and the height of the baffle 132 is less than the distance between the bottom surface of the slider 101 and the bottom surface of the slide rail 102; the first end of the baffle 132 is configured to push the first side surface 103 of the slide rail 102, and the second end of the baffle 132 is fixed to the workbench 11 by the fastener 133.

[0066] The clamping assembly 13 uses a baffle 132 and a fastener 133. The baffle 132 is pushed to press against the slide rail 102, and the baffle 132 is fixed by the fastener 133 to fix the slide rail 102. By limiting the height of the baffle 132, the baffle 132 can be prevented from interfering with the movement of the slider 101.

[0067] Optionally, the fastener 133 is a bolt, a through hole 134 for the bolt to pass through is formed at the second end of the blocking piece 132 , and a threaded hole 135 matching the bolt is processed on the workbench 11 .

[0068] The fastener 133 is a bolt, and the blocking piece 132 can be rotated by loosening the bolt, thereby loosening the pressing on the slide rail 102, which is easy to operate.

[0069] Optionally, at least two rows of threaded hole groups are processed on the workbench 11 , each row of threaded hole groups includes at least two threaded holes 135 spaced apart along the first horizontal direction 105 , and the vertical distances between any two rows of threaded hole groups and the limiting member 12 are different.

[0070] By arranging a plurality of rows of threaded hole groups on the workbench 11, the clamping assembly 13 can adapt to the fixing of slide rails 102 of various widths, thereby improving the application range of the device.

[0071] like Figure 1 As shown, optionally, the fixing mechanism 10 further includes a support seat 14 , the height of which is adjustable. The support seat 14 is disposed on the side of the workbench 11 , and the support seat 14 is used to support the portion of the slide rail 102 extending out of the workbench 11 .

[0072] By providing the support base 14 , the excessively long slide rail 102 can be supported to ensure the stability of the slide rail 102 during measurement.

[0073] As an optional implementation, Figure 1 , Figure 2 As shown, the moving mechanism 30 includes a translation driving mechanism 31 , a thrust meter mounting bracket 32 ​​and a height adjustment mechanism 33 .

[0074] The thrust meter mounting frame 32 is mounted on the driving end of the translation drive mechanism 31, and the thrust meter 20 is mounted on the thrust meter mounting frame 32 through a height adjustment mechanism 33, and the height adjustment mechanism 33 is used to adjust the height position of the thrust meter 20 on the thrust meter mounting frame 32. Optionally, the translation drive mechanism 31 can be any form of linear module.

[0075] The height of the thrust gauge 20 can be adjusted by a height adjustment mechanism 33 , so that the device can be adapted to the detection of the preload of linear guide rails 100 of different specifications.

[0076] Optionally, the height adjustment mechanism 33 includes a back plate 331 and at least two back plate fasteners; the thrust gauge mounting frame 32 is provided with two vertical guide grooves 321; the back plate fasteners pass through the guide grooves 321 to fix the back plate 331 on the thrust gauge mounting frame 32, and the thrust gauge 20 is fixed on the back plate 331. The back plate fasteners can be bolts, screws, etc.

[0077] The height adjustment mechanism 33 adopts a combination of the guide groove 321 and the back plate fastener, which has a simple structure, low cost and convenient adjustment.

[0078] Optionally, the height adjustment mechanism 33 also includes a positioning assembly 332, which includes a top screw 333 and a positioning block 334; the positioning block 334 is fixed on the thrust gauge mounting frame 32 and is arranged above the back plate 331, the top screw 333 is rotatably connected to the positioning block 334, and the free end of the top screw 333 passes through the positioning block 334 and is screwed to the top surface of the back plate 331; the back plate 331 is configured to move along the guide groove 321 under the drive of the top screw 333, and the back plate fastener is configured to fix the back plate 331 on the thrust gauge mounting frame 32 after the back plate 331 moves into place.

[0079] The height of the back plate 331 can be finely adjusted by loosening the back plate fastener in the guide groove 321 and screwing the top screw 333. After the height is adjusted to the right position, the back plate fastener in the guide groove 321 can be locked. The structure is simple, the cost is low, and the operation is convenient.

[0080] The present application is described in sufficient detail above with certain particularity. It should be understood by those skilled in the art that the description in the embodiments is merely exemplary, and all changes made without departing from the true spirit and scope of the present application should fall within the scope of protection of the present application. The scope of protection claimed in the present application is defined by the claims, rather than by the above description in the embodiments.

Claims

1. A linear guide rail preload detection device, characterized in that: The linear guide rail preload detection device is used to detect the preload between the slider and the slide rail of the linear guide rail; the linear guide rail preload detection device includes a fixing mechanism, a thrust meter and a moving mechanism; wherein: The fixing mechanism is configured to fix the slide rail of the linear guide rail to be detected so that the slide rail extends along a first horizontal direction; The moving mechanism is arranged on the side of the fixing mechanism, and the thrust meter is installed on the movable part of the moving mechanism; The moving mechanism is configured to drive the thrust gauge to move along the first horizontal direction, so that the measuring head of the thrust gauge contacts the slider of the linear guide rail to be detected and pushes the slider to slide along the slide rail. The thrust gauge is used to output the pre-pressure between the slider and the slide rail.

2. The linear guide rail preload detection device according to claim 1, characterized in that: The fixing mechanism comprises a workbench, a limiting member and a pressing assembly; The workbench is used to carry the slide rail, and the slide rail has a first side surface and a second side surface along the length direction; The limiting members are arranged on the table surface of the workbench, and the limiting members are arranged continuously or at intervals along the first horizontal direction; The clamping assembly is arranged on the table surface of the workbench, and the clamping assembly is used to push the first side surface of the slide rail so that the second side surface of the slide rail is tightly attached to the limiting member.

3. The linear guide rail preload detection device according to claim 2, characterized in that: The limiting member is a vertical limiting surface arranged on the table surface of the workbench and extending along the first horizontal direction, and the height of the vertical limiting surface is smaller than the distance between the bottom surface of the sliding block and the bottom surface of the sliding rail.

4. The linear guide rail preload detection device according to claim 2, characterized in that: The pressing assembly includes at least two pushing assemblies, and the pushing assembly includes a baffle and a fastener; The blocking piece is horizontally arranged on the table surface of the workbench, and the height of the blocking piece is less than the distance between the bottom surface of the slider and the bottom surface of the slide rail; The first end of the blocking piece is configured to push the first side surface of the slide rail, and the second end of the blocking piece is fixed to the workbench by the fastener.

5. The linear guide rail preload detection device according to claim 4, characterized in that: The fastener is a bolt, a through hole for the bolt to pass through is formed at the second end of the baffle, and a threaded hole matching the bolt is processed on the workbench.

6. The linear guide rail preload detection device according to claim 5, characterized in that: At least two rows of threaded hole groups are processed on the workbench, each row of the threaded hole groups includes at least two threaded holes spaced apart along the first horizontal direction, and the vertical distances between any two rows of the threaded hole groups and the limiting member are different.

7. The linear guide rail preload detection device according to claim 2, characterized in that: The fixing mechanism also includes a support seat, the height of which is adjustable, and the support seat is arranged on the side of the workbench, and the support seat is used to support the portion of the slide rail extending out of the workbench.

8. The linear guide rail preload detection device according to claim 1, characterized in that: The moving mechanism includes a translation driving mechanism, a thrust meter mounting frame and a height adjustment mechanism; The thrust meter mounting frame is mounted on the driving end of the translation driving mechanism, and the thrust meter is mounted on the thrust meter mounting frame through the height adjustment mechanism, and the height adjustment mechanism is used to adjust the height position of the thrust meter on the thrust meter mounting frame.

9. The linear guide rail preload detection device according to claim 8, characterized in that: The height adjustment mechanism includes a back plate and at least two back plate fasteners; The thrust meter mounting frame is provided with two vertical guide grooves; The back plate fastener passes through the guide groove to fix the back plate on the thrust gauge mounting frame, and the thrust gauge is fixed on the back plate.

10. The linear guide rail preload detection device according to claim 9, characterized in that: The height adjustment mechanism further includes a positioning assembly, and the positioning assembly includes a top screw and a positioning block; The positioning block is fixed on the thrust meter mounting frame and is arranged above the back plate, the top screw is rotatably connected to the positioning block, and the free end of the top screw passes through the positioning block and is screwed to the top surface of the back plate; The back plate is configured to move along the guide groove under the drive of the top screw, and the back plate fastener is configured to fix the back plate on the thrust meter mounting bracket after the back plate moves into position.

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