A guide rail pair pressure and clearance detection device

Abstract

The utility model relates to the technical field of guide rail pair detection, and specifically discloses a guide rail pair pressure and gap detection device, wherein the guide rail pair includes a guide rail and a slider, including a base for placing the guide rail pair and a lever micrometer, a crossbeam is provided above the base, the base and the crossbeam are connected by a support column, a lead screw is vertically connected inside the crossbeam, the lead screw and the crossbeam are threaded, a hand wheel is provided at the upper end of the lead screw, a pressure sensor for pressing the slider is provided at the lower end of the lead screw, the pressure sensor is electrically connected to a pressure display, the lever micrometer is fixed to one side of the guide rail pair through a bracket, and the probe of the lever micrometer is pressed on the upper end of the slider. The downward pressure can be accurately controlled to ensure that the downward pressure is the required pressure value, improve the convenience and accuracy of the guide rail pair detection, improve the accuracy of the detection results, effectively control the product quality, and ensure the qualified rate of the factory products.

Description

Technical Field

[0001] The utility model relates to the technical field of guide rail pair detection, in particular to a guide rail pair pressure and gap detection device. Background Art

[0002] The guide pair consists of two main parts, namely the supporting guide (guide rail) and the moving guide (slider). The supporting guide (guide rail) remains fixed during operation and plays a supporting role, while the moving guide (slider) moves linearly or rotary relative to the supporting guide and plays a mechanical guiding role. The design and manufacturing accuracy of the guide pair have a significant impact on the performance of mechanical equipment, including the stiffness, accuracy and accuracy retention of the equipment.

[0003] The gap between the slider and the guide rail directly affects the running accuracy of the guide rail pair. If the gap between the slider and the guide rail is too large, the running accuracy will be reduced. If the gap between the slider and the guide rail is too small, the friction will be large, affecting its operation. Therefore, the gap between the slider and the guide rail will vary according to the use requirements. At present, the pressure tolerance and gap detection between the slider and the guide rail are detected by a jack, but the pressure of the jack is not easy to control, resulting in inaccurate test results, which directly affects product quality. Utility Model Content

[0004] The utility model aims to solve the above-mentioned deficiencies in the prior art and provides a guide rail pair pressure and gap detection device, which can accurately control the downward pressure, ensure that the downward pressure is the required pressure value, improve the convenience and precision of guide rail pair detection, improve the accuracy of detection results, effectively control product quality, and ensure the qualified rate of shipped products.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A guide rail pair pressure and clearance detection device, the guide rail pair includes a guide rail and a slider, including a base for placing the guide rail pair and a lever micrometer, a crossbeam is provided above the base, the base and the crossbeam are connected by a support column, a lead screw is vertically connected inside the crossbeam, the lead screw and the crossbeam are threadedly matched, a handwheel is provided at the upper end of the lead screw, a pressure sensor for pressing the slider down is provided at the lower end of the lead screw, the pressure sensor is electrically connected to a pressure display, the lever micrometer is fixed to one side of the guide rail pair by a bracket, and the probe of the lever micrometer is pressed on the upper end of the slider.

[0007] Preferably, the length of the lead screw is not less than the length of the support column.

[0008] Preferably, the bracket includes a fixing seat, the upper end of the fixing seat is provided with a vertical rod, the upper end of the vertical rod is sleeved with a sleeve rod, the upper end of the sleeve rod is connected to a cross rod, and the end of the cross rod is provided with a fixing clamp for fixing the lever micrometer.

[0009] Preferably, annular grooves are evenly arranged on the side wall of the vertical rod from top to bottom, positioning holes are evenly arranged at the bottom of the groove along the circumferential direction, and positioning pins cooperating with the positioning holes are arranged on the side wall of the sleeve rod.

[0010] Preferably, a limit plate is connected to the side wall of the sleeve rod, the locating pin passes through the limit plate, a retaining ring is sleeved on the side wall of the locating pin, the retaining ring is located between the limit plate and the sleeve rod, the retaining ring and the sleeve rod are connected by a spring, and a pull ring is provided at the end of the locating pin.

[0011] Preferably, the upper end of the sleeve rod is connected to a rotating block via a rotating shaft, a locking nut is provided on the rotating shaft, the locking nut and the rotating block are respectively located on both sides of the sleeve rod, and the cross bar is connected to the rotating block.

[0012] Preferably, the cross bar passes through the rotating block, and a locking bolt for fixing the cross bar is provided on the side wall of the rotating block.

[0013] Preferably, a clamping bolt is connected to the fixing clamp.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model can accurately control the downward pressure, ensure that the downward pressure is the required pressure value, improve the convenience and accuracy of the guide rail pair detection, improve the accuracy of the detection result, effectively control the product quality, and ensure the qualified rate of the factory products.

[0016] 2. The bracket of the utility model can adjust the height, angle and lateral position of the lever micrometer, which is simple and convenient to use and easy to adjust. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 is a schematic diagram of the structure of the bracket;

[0019] Figure 3 is the main view of the bracket;

[0020] Figure 4 for Figure 3 AA section view;

[0021] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at B;

[0022] In the figure: 1-base; 2-support column; 3-crossbeam; 4-screw; 5-handwheel; 6-pressure sensor; 7-bracket; 701-fixed seat; 702-vertical pole; 703-sleeve rod; 704-cross bar; 705-rotating block; 706-fixing clamp; 707-locking bolt; 708-clamping bolt; 709-locking nut; 710-rotating shaft; 711-locating hole; 712-locating pin; 713-spring; 714-retaining ring; 715-limiting plate; 716-pull ring; 717-slot; 8-lever micrometer; 9-guide pair. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown, a guide rail pair 9 pressure and gap detection device, the guide rail pair 9 includes a guide rail and a slider, including a base 1 for placing the guide rail pair 9 and a lever micrometer 8, a crossbeam 3 is provided above the base 1, the base 1 and the crossbeam 3 are connected by a support column 2, a lead screw 4 is vertically connected inside the crossbeam 3, the lead screw 4 and the crossbeam 3 are threaded, a hand wheel 5 is provided at the upper end of the lead screw 4, a pressure sensor 6 for pressing the slider is provided at the lower end of the lead screw 4, the pressure sensor 6 is electrically connected to a pressure display, the pressure display is not drawn in the figure, this is a conventional circuit connection, and no detailed description is given. For displaying the downward pressure value, the lever micrometer 8 is fixed to one side of the guide rail pair 9 through a bracket 7, and the probe of the lever micrometer 8 is pressed on the upper end of the slider.

[0025] The length of the lead screw 4 is not less than the length of the support column 2, and can apply downward pressure to guide rail pairs 9 of different sizes.

[0026] like Figure 2-5 As shown, the bracket 7 includes a fixing seat 701, the upper end of the fixing seat 701 is provided with a vertical rod 702, the upper end of the vertical rod 702 is sleeved with a sleeve rod 703, the upper end of the sleeve rod 703 is connected to a cross bar 704, and the end of the cross bar 704 is provided with a fixing clamp 706 for fixing the lever micrometer 8.

[0027] Annular grooves 717 are evenly arranged on the side wall of the vertical rod 702 from top to bottom, and positioning holes 711 are evenly arranged at the bottom of the grooves 717 along the circumferential direction. Positioning pins 712 that cooperate with the positioning holes 711 are arranged on the side wall of the sleeve rod 703. The height and angle of the cross bar 704 can be fixed by the positioning pins 712.

[0028] A limiting plate 715 is connected to the side wall of the sleeve rod 703, and the locating pin 712 passes through the limiting plate 715. A retaining ring 714 is sleeved on the side wall of the locating pin 712. The retaining ring 714 is located between the limiting plate 715 and the sleeve rod 703. The retaining ring 714 and the sleeve rod 703 are connected by a spring 713. The spring 713 pulls the locating pin 712 to lock it. A pull ring 716 is provided at the end of the locating pin 712, and the pull ring 716 can be used to pull the locating pin 712 open to unlock it.

[0029] The upper end of the sleeve rod 703 is connected to a rotating block 705 via a rotating shaft 710, and a locking nut 709 is provided on the rotating shaft 710. The locking nut 709 and the rotating block 705 are respectively located on both sides of the sleeve rod 703. The cross bar 704 is connected to the rotating block 705. By opening the locking nut 709, the angle of the cross bar 704 can be rotated up and down.

[0030] The cross bar 704 passes through the rotating block 705. A locking bolt 707 for fixing the cross bar 704 is provided on the side wall of the rotating block 705. By opening the locking bolt 707, the cross bar 704 can be slid to adjust the lateral position of the lever micrometer 8.

[0031] A clamping bolt 708 is connected to the fixing clamp 706 , and the clamping bolt 708 crosses the fixing clamp 706 . By tightening the clamping bolt 708 , the opening size of the fixing clamp 706 can be adjusted, thereby facilitating the disassembly and assembly of the lever micrometer 8 .

[0032] When in use, place the guide rail pair 9 to be tested on the upper end of the base 1, the slider is located below the pressure sensor 6, and the probe of the lever micrometer 8 is pressed on the upper end of the slider. At this time, record the value H1 of the lever micrometer 8, turn the handwheel 5 to make the pressure sensor 6 press the slider, and stop after the pressure value reaches the required pressure. At this time, record the value H2 of the lever micrometer 8, and observe whether the difference between the values ​​on both sides is within the allowable range. If so, it is qualified, otherwise, it is unqualified; at the same time, observe whether the slider and the guide rail are damaged under this pressure value.

[0033] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A guide rail pair pressure and gap detection device, the guide rail pair includes a guide rail and a slider, characterized in that: It includes a base for placing the guide rail pair and a lever micrometer. A crossbeam is provided above the base. The base and the crossbeam are connected by a supporting column. A lead screw is vertically connected inside the crossbeam. The lead screw and the crossbeam are threadedly matched. A handwheel is provided at the upper end of the lead screw. A pressure sensor for pressing a slider down is provided at the lower end of the lead screw. The pressure sensor is electrically connected to a pressure display. The lever micrometer is fixed to one side of the guide rail pair through a bracket. The probe of the lever micrometer is pressed on the upper end of the slider.

2. A guide rail pair pressure and gap detection device as claimed in claim 1, characterized in that: The length of the lead screw is not less than the length of the support column.

3. A guide rail pair pressure and gap detection device as claimed in claim 1, characterized in that: The bracket comprises a fixing seat, the upper end of which is provided with a vertical rod, the upper end of which is sleeved with a sleeve rod, the upper end of which is connected with a cross rod, and the end of which is provided with a fixing clamp for fixing a lever micrometer.

4. A guide rail pair pressure and gap detection device as claimed in claim 3, characterized in that: The side wall of the vertical rod is evenly provided with annular clamping grooves from top to bottom, the bottom of the clamping groove is evenly provided with positioning holes along the circumferential direction, and the side wall of the sleeve rod is provided with positioning pins matched with the positioning holes.

5. A guide rail pair pressure and gap detection device as claimed in claim 4, characterized in that: A limit plate is connected to the side wall of the sleeve rod, the positioning pin passes through the limit plate, a retaining ring is sleeved on the side wall of the positioning pin, the retaining ring is located between the limit plate and the sleeve rod, the retaining ring and the sleeve rod are connected by a spring, and a pull ring is provided at the end of the positioning pin.

6. A guide rail pair pressure and gap detection device as claimed in claim 3, characterized in that: The upper end of the sleeve rod is connected with a rotating block through a rotating shaft, a locking nut is arranged on the rotating shaft, the locking nut and the rotating block are respectively located on both sides of the sleeve rod, and the cross bar is connected with the rotating block.

7. A guide rail pair pressure and gap detection device as claimed in claim 6, characterized in that: The cross bar passes through the rotating block, and a locking bolt for fixing the cross bar is arranged on the side wall of the rotating block.

8. A guide rail pair pressure and gap detection device as claimed in claim 3, characterized in that: The fixing clamp is connected with a clamping bolt.

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