Guide rail pressing jig mechanism
Through the automatic adjustment of the guide rail compression fixture mechanism, the problem of cumbersome and laboriousness of traditional manual compression of guide rails is solved, and the tight fit between the guide rails and the linear motor frame is achieved, which improves positioning accuracy and reduces noise and vibration.
Patent Information
- Application Number
- CN202422050665.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-22
AI Technical Summary
During the installation of linear guide rails of linear motor frames, traditional manual compression of traditional manual rails is cumbersome and laborious, resulting in a gap between the guide rail and linear motor frame, affecting positioning accuracy and repeated positioning accuracy, and may generate noise and vibration.
A guide rail compression fixture mechanism is designed, using glue-covered rollers, linear bearings and spring components to make the guide rails closely fit with the inner wall of the linear motor frame through automatic adjustments to ensure that the guide rails remain in a fit state throughout the stroke.
The guide rails are closely fitted with the linear motor frame, avoiding swing and friction caused by gaps, improving positioning accuracy and repeated positioning accuracy, and reducing noise and vibration.
Smart Images

Figure CN223160786U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of guide rail pressing, in particular to a guide rail pressing fixture mechanism. Background Art
[0002] A guide rail clamping fixture is a special fixture used to fix the workpiece during machining, assembly or testing. The function of the guide rail is to provide a positioning reference for the workpiece to ensure the position accuracy of the workpiece during machining or measurement; while the clamping device is used to apply sufficient force to press the workpiece against the guide rail or other positioning elements to prevent the workpiece from moving or vibrating under the action of force, thereby ensuring the accuracy of machining or testing.
[0003] During the installation of the linear guide rails of the linear motor frame, the traditional practice is often to rely on manual pressure to press the guide rails against the supporting surface of the aluminum profile base. This operation is relatively cumbersome and laborious. However, during the installation of the guide rails, if the guide rails and the linear motor frame are not ensured to fit tightly together, a gap may exist between the two. The presence of the gap may easily cause the guide rails to swing or shake unnecessary during movement, thereby affecting the positioning accuracy and repeatability of the linear motor. It may also cause collision or friction between the guide rails and the linear motor frame, generating additional noise and vibration, affecting the comfort of the working environment and the life of the equipment.
[0004] In view of the above problems, it is necessary to design a guide rail pressing fixture mechanism. Utility Model Content
[0005] In order to overcome the disadvantage that the existence of the gap easily causes unnecessary swing or shaking of the guide rail during movement, thereby affecting the positioning accuracy and repeatability of the linear motor, the utility model provides a guide rail clamping fixture mechanism.
[0006] The technical solution of the utility model is as follows: a guide rail clamping fixture mechanism, including a fixed seat, a rubber-coated roller, a retaining spring, a first rotating shaft, a second rotating shaft, a linear bearing, a first spring and a fixed assembly, there are two fixed seats, rubber-coated rollers are placed symmetrically on the left and right inside the two fixed seats, retaining springs are placed inside the rubber-coated rollers, a first rotating shaft is inserted into the fixed seat, the first rotating shaft and the retaining spring are plug-in matched, a second rotating shaft is symmetrically inserted between the two fixed seats, linear bearings are symmetrically installed on the fixed seat, the second rotating shaft is slidably matched with the fixed seat and the linear bearing, a first spring is symmetrically connected between the two fixed seats, and a fixed assembly is provided on the upper part of the two fixed seats.
[0007] Optionally, the fixing assembly includes a mounting plate, a wedge block, a second spring and a contact plate. The mounting plate is installed on the upper part of the rear fixing seat, the wedge block is slidably connected to the mounting plate, two second springs are connected between the wedge block and the mounting plate, and contact plates are symmetrically installed on the upper part of the two fixing seats.
[0008] Optionally, it further includes pulleys, and the pulleys are symmetrically installed on the left and right at the bottom of the fixed seat.
[0009] Optionally, reserved spaces are provided on one side of the two fixed seats close to each other.
[0010] Optionally, fixing holes are symmetrically provided on the left and right of the fixed seat.
[0011] Optionally, the snap ring is made of stainless steel.
[0012] Optionally, grooves are symmetrically provided on the left and right inside the two fixed seats.
[0013] Optionally, the contact plate is L-shaped.
[0014] Optionally, the outer layer of the rubber-coated roller is made of rubber material.
[0015] Optionally, the number of the second rotating shafts is not less than two.
[0016] The beneficial effects of the present utility model are as follows: When the device moves to a position where there is a gap between the guide rail and the inner wall of the linear motor frame, the staff pulls the wedge block to move along the mounting plate, the second spring is compressed, and the wedge block is separated from the contact plate. Under the reset action of the first spring, the fixed seat drives the linear bearing and the rubber-coated roller to move along the second rotating shaft. The rubber-coated roller moves to contact the guide rail and applies pressure to it, so that the guide rail is reattached to the inner wall of the linear motor frame. Subsequently, the pusher continues to push the device to drive the rubber-coated roller to move, and the rubber-coated roller continues to be attached to the guide rail and roll along it, ensuring that the guide rail can maintain the attached state with the inner wall of the linear motor frame throughout the entire stroke. Description of the Drawings
[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.
[0018] Figure 2 It is an exploded view of the fixed seat, the rubber-coated roller and the linear bearing of the present utility model.
[0019] Figure 3 It is a three-dimensional structural schematic diagram of components such as the rubber-coated roller, the second rotating shaft and the pulley of the present utility model.
[0020] Figure 4 It is a three-dimensional structural schematic diagram of components such as the mounting plate, the wedge block and the second spring of the present utility model.
[0021] The marks of each component in the drawings are as follows: 1 - fixed seat, 2 - rubber-coated roller, 3 - snap ring, 4 - first rotating shaft, 5 - second rotating shaft, 6 - linear bearing, 7 - first spring, 8 - pulley, 9 - mounting plate, 10 - wedge block, 11 - second spring, 12 - contact plate. Detailed implementation mode
[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, rear, inner and outer that appear or will appear in the text of the present utility model are only based on the accompanying drawings of the present utility model, and they do not specifically limit the present utility model.
[0023] Embodiment: A guide rail pressing fixture mechanism, as Figures 1 - 4 shown, includes a fixed seat 1, a rubber-coated roller 2, a circlip 3, a first rotating shaft 4, a second rotating shaft 5, a linear bearing 6, a first spring 7, a pulley 8 and a fixing component. Fixing holes for the first rotating shaft 4 to pass through are symmetrically opened on the left and right of the fixed seat 1. There are two fixed seats 1. Grooves for installing the rubber-coated roller 2 are symmetrically opened on the left and right inside the two fixed seats 1. The rubber-coated rollers 2 are placed symmetrically on the left and right inside the two fixed seats 1. The outer layer of the rubber-coated roller 2 is made of rubber material. A circlip 3 is placed inside the rubber-coated roller 2. The circlip 3 is made of stainless steel material. The first rotating shaft 4 is inserted into the fixed seat 1, and the first rotating shaft 4 is in plug-in fit with the circlip 3. The second rotating shaft 5 is symmetrically inserted between the two fixed seats 1, and the number of the second rotating shafts 5 is not less than two. Linear bearings 6 are symmetrically installed on the left and right inside the fixed seat 1. The second rotating shaft 5 is in sliding fit with both the fixed seat 1 and the linear bearing 6. The first spring 7 is symmetrically connected between the two fixed seats 1. Reserved spaces for placing the first spring 7 are opened on the sides of the two fixed seats 1 close to each other. Pulleys 8 are symmetrically installed at the bottom of the fixed seat 1. When the two fixed seats 1 move, the pulleys 8 roll along the inside of the linear motor frame to ensure the stable operation of the two fixed seats 1. A fixing component is arranged on the upper part of the two fixed seats 1; the fixing component includes a mounting plate 9, a wedge block 10, a second spring 11 and a contact plate 12. The mounting plate 9 is installed on the upper part of the rear fixed seat 1. The wedge block 10 is slidably connected to the mounting plate 9. Two second springs 11 are connected between the wedge block 10 and the mounting plate 9. Contact plates 12 are symmetrically installed on the upper part of the two fixed seats 1 on the left and right. The contact plates 12 are L-shaped and are used to limit the wedge block 10.
[0024] When the device needs to be installed, the staff first installs the retaining spring 3 inside the rubber-coated roller 2 to ensure that the retaining spring 3 is firm, then places the rubber-coated roller 2 on the fixing seat 1, and then aligns the first rotating shaft 4 with the fixing hole of the fixing seat 1, and gently pushes the first rotating shaft 4 downward along the fixing seat 1 until the first rotating shaft 4 contacts the retaining spring 3, and continues to push the first rotating shaft 4 to pass through the retaining spring 3 and continue to move downward until the first rotating shaft 4 reaches the predetermined position of the fixing seat 1, then loosens the first rotating shaft 4, and the staff then places the bolt on the first rotating shaft 4. After the bolt is placed, it is rotated along the first rotating shaft 4 until the bolt is tightened, then loosens the bolt, and repeats the above operation until all the rubber-coated rollers 2 are installed and the rubber-coated roller is completed. 2, the staff will place the two first springs 7 in the reserved space of the fixing seat 1 respectively, ensuring that the two first springs 7 are straight and without distortion. After the two first springs 7 are placed, align the reserved space on the other fixing seat 1 with the other end of the two first springs 7, and then squeeze the two fixing seats 1 inward to make the contact surfaces of the two fixing seats 1 fit together. At this time, the first spring 7 between the two fixing seats 1 is squeezed and compressed. The staff will insert the second rotating shaft 5 into the shaft hole of the fixing seat 1, and then push the second rotating shaft 5 to pass through the two fixing seats 1, ensuring that the second rotating shaft 5 is tightly fitted with the fixing seat 1, and then put the linear bearing 6 on the second rotating shaft 5, ensuring that the axis of the linear bearing 6 is consistent with that of the second rotating shaft 5, and then use bolts to fix the linear bearing 6 On the fixed seat 1, ensure that the linear bearing 6 will not move at will, and finally install the mounting plate 9, wedge block 10, second spring 11 and contact plate 12 on the two fixed seats 1 in sequence to complete the assembly of the device. When the device needs to be used, the staff will place the device in the linear motor frame, and the rubber-coated roller 2 will contact the guide rail in the linear motor frame, so that the rubber-coated roller 2 fits tightly with the guide rail, and then install the pusher on the device, and then start the pusher. The pusher pushes the device to drive the rubber-coated roller 2 to move to the right along the guide rail inside the linear motor frame, so that the guide rail fits tightly with the inner wall of the linear motor frame, and at the same time, the pulley 8 moves to the right along the linear motor frame to ensure the smooth operation of the device. When the device moves to the point where the guide rail and the linear motor frame are in contact, the rubber-coated roller 2 and the guide rail are in contact. When there is a gap between the walls, the staff pulls the wedge block 10 to move inward along the mounting plate 9, and the second spring 11 is compressed. Since the initial state of the wedge block 10 is a fixed state, the wedge block 10 is out of contact with the contact plate 12. Since the initial state of the first spring 7 is in a compressed state, under the reset action of the first spring 7, the fixed seat 1 drives the linear bearing 6 and the rubber-coated roller 2 to move outward along the second rotating shaft 5. The rubber-coated roller 2 moves to contact the guide rail and exerts pressure on the guide rail to make the guide rail fit with the inner wall of the linear motor frame again. Then the pusher continues to push the device to drive the rubber-coated roller 2 to move to the right. The rubber-coated roller 2 continues to fit with the guide rail and rolls along the guide rail to ensure that the guide rail can maintain a fit with the inner wall of the linear motor frame throughout the entire stroke.After the guide rail pressing operation is completed, the pusher is turned off, and the operation of squeezing the two fixing seats 1 is repeated above, so that the first spring 7 is compressed again. At the same time, the fixing seat 1 drives the linear bearing 6 and the rubber-coated roller 2 to move inward along the second rotating shaft 5 until the contact surfaces of the two fixing seats 1 are closely attached. Then, the wedge block 10 is loosened, and under the reset action of the second spring 11, the wedge block 10 moves outward along the mounting plate 9 until the wedge block 10 moves to the initial position. At the same time, the movement of the wedge block 10 contacts the contact plate 12 and is limited by it, which helps to maintain the relative positions of the two fixing seats 1, so as to be ready for the next guide rail pressing operation.
[0025] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all modifications and equivalent structures and functions.
Claims
1. A guide rail pressing fixture mechanism, characterized in that, Including: Fixed seats (1), and there are two of the fixed seats (1); Rubber-coated rollers (2), and the rubber-coated rollers (2) are symmetrically placed inside the two fixed seats (1) left and right; Circlips (3), and the circlips (3) are installed inside the rubber-coated rollers (2); First rotating shafts (4), the first rotating shafts (4) are inserted on the fixed seats (1), and the first rotating shafts (4) are in plug-in fit with the circlips (3); Second rotating shafts (5), the second rotating shafts (5) are symmetrically inserted between the two fixed seats (1); Linear bearings (6), and the linear bearings (6) are symmetrically installed left and right inside the fixed seats (1), The second rotating shafts (5) are in sliding fit with both the fixed seats (1) and the linear bearings (6); First springs (7), and the first springs (7) are symmetrically connected left and right between the two fixed seats (1), and a fixing assembly, and a fixing assembly is provided on the upper parts of the two fixed seats (1).
2. The rail pressing fixture mechanism according to claim 1, wherein, The fixing assembly includes: A mounting plate (9), and the mounting plate (9) is installed on the upper part of the rear fixed seat (1); Wedge-shaped blocks (10), and the wedge-shaped blocks (10) are slidably connected to the mounting plate (9); Second springs (11), and the two second springs (11) are connected between the wedge-shaped blocks (10) and the mounting plate (9); Contact plates (12), and the contact plates (12) are symmetrically installed left and right on the upper parts of the two fixed seats (1).
3. The rail pressing fixture mechanism according to claim 2, characterized in that, It also includes: Pulleys (8), and the pulleys (8) are symmetrically installed left and right at the bottoms of the fixed seats (1).
4. A guide rail pressing fixture mechanism according to claim 3, characterized in that, Reserved spaces are provided on one side of each of the two fixed seats (1) close to each other.
5. The guide rail pressing fixture mechanism according to claim 4, characterized in that, Fixing holes are symmetrically provided left and right on the fixed seats (1).
6. The rail pressing fixture mechanism according to claim 5, wherein, The circlips (3) are made of stainless steel material.
7. A guide rail pressing fixture mechanism according to claim 6, characterized in that, Grooves are symmetrically provided left and right inside the two fixed seats (1).
8. A guide rail pressing fixture mechanism according to claim 7, characterized in that, The contact plates (12) are L-shaped.
9. A guide rail pressing fixture mechanism according to claim 8, characterized in that, The outer layer of the rubber-coated rollers (2) is made of rubber material.
10. A guide rail pressing fixture mechanism according to claim 9, characterized in that, The number of the second rotating shafts (5) is not less than two.