Guide rail pair static stiffness detection displacement sensor adjusting tool

Abstract

The utility model relates to a guide rail pair static stiffness detection displacement sensor adjustment frock, and guide rail pair includes guide rail and the slider of sliding connection on guide rail, and guide rail sets up on guide rail mounting base, and adjustment frock includes setting on the upper pressing plate of slider, the fixed plate of fixed in upper pressing plate one side, the screw rod of rotation connection in fixed plate and with fixed plate sliding connection and with the clamping plate of screw joint of screw rod, and displacement sensor sets up on clamping plate, and rotates screw rod and drives clamping plate and slides up and down along fixed plate, and adjusts displacement sensor and moves up and down and contacts with guide rail mounting base, this frock passes through screw rod and clamping plate and connects displacement sensor on upper pressing plate, makes displacement sensor and moves up and down not to need and clamping plate produces friction, and will not take place abrasion.

Description

Technical Field

[0001] This utility model relates to an adjustment fixture for a displacement sensor for detecting the static stiffness of a guide rail pair, belonging to the technical field of linear guide rail pairs. Background Technology

[0002] When testing the static stiffness of the guide rail pair, it is necessary to adjust the displacement sensor so that the contact head of the displacement sensor contacts the guide rail mounting base. In the existing technology, the displacement sensor is fixed to the upper pressure plate by clamping it with a copper ring. Each adjustment requires moving the displacement sensor up and down to make it move up and down with the copper ring to adjust its position and contact the guide rail mounting base. This is very inconvenient to use. Moreover, when the copper ring is clamped tightly, the displacement sensor needs to be twisted back and forth to move it. Long-term use can easily cause wear to the displacement sensor. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides an adjustment fixture that can accurately adjust the vertical position of a displacement sensor without wear.

[0004] To achieve the above objectives, the technical solution proposed by this utility model is as follows: a guide rail pair static stiffness detection displacement sensor adjustment fixture, wherein the guide rail pair includes a guide rail and a slider slidably connected to the guide rail, the guide rail is disposed on a guide rail mounting base, the adjustment fixture includes an upper pressure plate disposed on the slider, a fixing plate fixed to one side of the upper pressure plate, a lead screw rotatably connected to the fixing plate, and a clamping plate slidably connected to the fixing plate and screwed to the lead screw, the displacement sensor is disposed on the clamping plate, rotating the lead screw drives the clamping plate to slide up and down along the fixing plate, adjusting the displacement sensor to move up and down and contact the guide rail mounting base.

[0005] A further design of the above technical solution is as follows: the fixing plate is provided with two parallel side plates on the side away from the upper pressure plate, the side plates are provided with bearings, and the lead screw is connected to the bearings on the two side plates.

[0006] The upper end of the lead screw extends out of the upper side plate and is provided with an internal hexagonal hole.

[0007] The clamping plate includes an inner clamping plate that is slidably connected to a fixed plate and screwed to a lead screw, and an outer clamping plate fixed to the inner clamping plate. The outer clamping plate has a through hole, and the inner clamping plate has a screw hole that matches the through hole. The outer clamping plate is fixed to the inner clamping plate by bolts set in the corresponding through hole and screw hole. The outer side of the inner clamping plate has a semi-circular hole, and the outer clamping plate has a semi-circular hole that matches the semi-circular hole on the inner clamping plate. The clamping plate holds the displacement sensor through the two semi-circular holes.

[0008] The fixing plate is provided with mounting holes, and the fixing plate is fixed to the upper pressure plate by bolts set in the mounting holes.

[0009] The beneficial effects of this utility model are as follows: This invention connects the displacement sensor to the upper pressure plate via a lead screw and a clamping plate. Rotating the lead screw causes the displacement sensor to slide up and down to adjust its position, thus eliminating the need for friction between the displacement sensor and the clamping plate during its up-and-down movement and preventing wear.

[0010] This invention converts the rotation of the lead screw into the vertical displacement of the displacement sensor through the threaded connection between the lead screw and the clamping plate, which can adjust the position of the displacement sensor more accurately. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the adjustment tooling of this utility model; Figure 2 for Figure 1 Diagram showing the usage status of the adjusted tooling; Figure 3 for Figure 1 A three-dimensional structural diagram showing the adjustment of the tooling's usage status.

[0012] In the diagram: 1-fixed plate, 11-side plate, 111-first through hole, 12-mounting hole, 2-lead screw, 21-internal hexagonal hole, 31-inner clamping plate, 32-outer clamping plate, 321-second through hole, 33-clamping hole, 4-displacement sensor, 5-guide rail, 6-slider, 7-guide rail mounting base, 8-upper pressure plate, 9-pressure head. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example

[0014] The adjustment fixture in this embodiment is used to adjust the displacement sensor for detecting the static stiffness of the guide rail pair. The guide rail pair includes a guide rail 5 and a slider 6 slidably connected to the guide rail 5. The guide rail 5 is mounted on the guide rail mounting base 7.

[0015] like Figure 1 As shown, the adjustment fixture includes an upper pressure plate 8 mounted on the slider, a fixing plate 1 fixed to one side of the upper pressure plate 8, a lead screw 2 rotatably connected to the fixing plate 1, and a clamping plate slidably connected to the fixing plate 1 and screwed to the lead screw 2. The fixing plate 1 has at least two mounting holes 12, and the side of the upper pressure plate has screw holes that mate with the mounting holes. The fixing plate 1 is fixed to one side of the upper pressure plate by bolts passing through the mounting holes 12 and screwing into the screw holes. The side of the fixing plate 1 away from the upper pressure plate has two parallel side plates 11, and the side plates have two first through holes 111. The fixing plate 1 has screw holes corresponding to the first through holes 111, and the screw holes are screwed into the first through holes 111 and fixedly connected to the side plates 11 by bolts passing through the first through holes 111.

[0016] Bearings are provided on the side plates 11. The lead screw 2 passes through the two side plates 11 and is connected to the bearings on the two side plates 11, thereby rotatably connecting with the side plates 11. The portion of the lead screw 2 located between the two side plates 11 has external threads. The upper end of the lead screw 2 extends out of the upper side plate 11, and the extended portion has an internal hexagonal hole 21 to facilitate the rotation of the lead screw 2 using tools.

[0017] The clamping plate includes an inner clamping plate 31 and an outer clamping plate 32. The inner clamping plate 31 has a screw hole, through which it is screwed to the external thread of the lead screw 2. The side of the fixing plate away from the upper pressure plate forms a guide surface. One side of the inner clamping plate 31 abuts against and slides against this guide surface. The other side of the inner clamping plate 31 has a semi-circular hole. The side of the outer clamping plate 32 opposite to the inner clamping plate has a semi-circular hole that mates with the semi-circular hole of the inner clamping plate 31. The outer clamping plate 32 has two second through holes 321. The inner clamping plate 31 has a screw hole that mates with the second through holes. The plate is fixed to the inner clamping plate 31 by bolts set in the corresponding second through hole and screw hole, so that the two semi-circular holes are connected to form the clamping hole 33 of the displacement sensor, and the displacement sensor 4 is clamped on the clamping plate. The displacement sensor 4 and the clamping plate are relatively fixed. Rotating the screw 2 drives the clamping plate to slide up and down along the fixed plate 1, thereby driving the displacement sensor 4 to move up and down to adjust its position. During this process, the displacement sensor does not rub against the clamping plate, and the vertical position of the displacement sensor can be adjusted more precisely through the transmission method of the screw 2.

[0018] Combination Figure 2 and Figure 3 As shown, when using the adjustment fixture of this embodiment to test the static stiffness of the guide rail pair, the upper pressure plate 8 is placed on the slider 6, and then the fixing plate 1 is fixed to one side of the upper pressure plate 8. The contact displacement sensor 4 is clamped on the clamping plate, and the upper and lower positions of the displacement sensor 4 are adjusted by rotating the lead screw 2 until the contact of the displacement sensor 4 contacts the upper plane of the guide rail mounting base 7 and meets the test requirements. Then, the pressure head 9 of the pressure sensor is used to apply pressure to the upper pressure plate 8, so that the slider 6 drives the entire testing fixture to slide along the guide rail 5. The contact of the displacement sensor 4 slides with the slider on the plane of the guide rail mounting base 7. If there is deformation in the guide rail pair, the slider 6 will drive the displacement sensor 4 to move up and down slightly during the sliding process. The displacement sensor 4 measures the displacement data, and the static stiffness of the guide rail pair is obtained by combining the loading force of the pressure sensor.

[0019] This utility model is not limited to the above embodiments. All technical solutions obtained by equivalent substitution fall within the scope of protection claimed by this utility model.

Claims

1. A fixture for adjusting a displacement sensor to detect the static stiffness of a guide rail pair, wherein the guide rail pair includes a guide rail and a slider slidably connected to the guide rail, the guide rail being disposed on a guide rail mounting base, characterized in that: The adjustment fixture includes an upper pressure plate mounted on the slider, a fixed plate fixed to one side of the upper pressure plate, a lead screw rotatably connected to the fixed plate, and a clamping plate slidably connected to the fixed plate and screwed to the lead screw. The displacement sensor is mounted on the clamping plate. Rotating the lead screw causes the clamping plate to slide up and down along the fixed plate, adjusting the displacement sensor to move up and down and contact the guide rail mounting base.

2. The adjustment fixture for the displacement sensor for detecting the static stiffness of the guide rail pair according to claim 1, characterized in that: The fixed plate has two parallel side plates on the side away from the upper pressure plate. The side plates are equipped with bearings, and the lead screw is connected to the bearings on the two side plates.

3. The adjustment fixture for the displacement sensor for detecting the static stiffness of the guide rail pair according to claim 2, characterized in that: The upper end of the lead screw extends out of the upper side plate and is provided with an internal hexagonal hole.

4. The adjustment fixture for the displacement sensor for detecting the static stiffness of the guide rail pair according to claim 1, characterized in that: The clamping plate includes an inner clamping plate that is slidably connected to a fixed plate and screwed to a lead screw, and an outer clamping plate fixed to the inner clamping plate. The outer clamping plate has a through hole, and the inner clamping plate has a screw hole that mates with the through hole. The outer clamping plate is fixed to the inner clamping plate by bolts set in the corresponding through hole and screw hole. The outer side of the inner clamping plate has a semi-circular hole, and the outer clamping plate has a semi-circular hole that matches the semi-circular hole on the inner clamping plate. The clamping plate holds the displacement sensor through the two semi-circular holes.

5. The adjustment fixture for the displacement sensor for detecting the static stiffness of the guide rail pair according to claim 1, characterized in that: The fixing plate is provided with mounting holes, and the fixing plate is fixed to the upper pressure plate by bolts set in the mounting holes.

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