A reciprocating linear guide rail protection device

Abstract

The present invention relates to the technical field of guide rail protection, in particular to a reciprocating linear guide rail protection device, which has a simple structure and optimizes the structure of the bellows type protective cover. During installation, it is not necessary to install it at the end of the reciprocating linear guide rail, making the installation and replacement more convenient and fast; it includes a bellows type protective cover; the bellows type protective cover includes flexible connecting pieces and protective cover bodies fixed on both sides of the flexible connecting pieces, and the two protective cover bodies are respectively slidably matched with one side of the reciprocating linear guide rail; along the length direction of the reciprocating linear guide rail, fixing pieces are fixed at both ends of the protective cover body.

Description

Technical Field

[0001] The invention relates to the technical field of guide rail protection, and in particular to a reciprocating linear guide rail protection device. Background Art

[0002] The function of linear guide motion is to support and guide moving parts to make reciprocating linear motion in a given direction. According to the nature of friction, linear motion guides can be divided into sliding friction guides, rolling friction guides, elastic friction guides, fluid friction guides and other types. Linear bearings are mainly used in automated machinery, such as machine tools imported from Germany, bending machines, laser welding machines, etc. Of course, linear bearings and linear shafts are used in pairs. Linear guides are mainly used in mechanical structures with relatively high precision requirements. Instead of using an intermediate medium between the moving element and the fixed element of the linear guide, rolling steel balls are used.

[0003] The accordion-type protective cover is a type of machine tool protective cover used to protect the machine tool guide rails. It can protect the hard guide rails, linear guide rails, ball screws or transmission racks and other transmission components inside the protective cover from dust and chips, avoid corrosion and damage to the transmission components by chips, cutting fluids and dust, and ensure the transmission accuracy and service life of the transmission system.

[0004] The accordion-type protective cover is retracted and retracted along the length direction of the reciprocating linear guide. In the prior art, in order to prevent the accordion-type protective cover from jumping up and down, a protrusion that cooperates with the groove of the reciprocating linear guide is provided on the inner wall of the accordion-type protective cover. It is precisely because of this protrusion that when the accordion-type protective cover is installed, it is necessary to put the accordion-type protective cover on the reciprocating linear guide at the end of the reciprocating linear guide, which only brings inconvenience to use. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a reciprocating linear guide rail protection device, which has a simple structure and optimizes the structure of the accordion-type protective cover. During installation, it is not necessary to install it at the end of the reciprocating linear guide rail, making installation and replacement more convenient and quick.

[0006] A reciprocating linear guide rail protection device of the present invention comprises an accordion-type protective cover; the accordion-type protective cover comprises a flexible connecting piece and a protective cover body fixed on both sides of the flexible connecting piece, and the two protective cover bodies are respectively slidably matched with one side of the reciprocating linear guide rail;

[0007] Along the length direction of the reciprocating linear guide rail, fixing plates are fixed at both ends of the protective cover body.

[0008] In a reciprocating linear guide rail protection device of the present invention, a telescopic component is arranged on the side of a protective cover body, and two ends of the telescopic component are respectively rotatably connected to two fixing plates on the same protective cover body.

[0009] A reciprocating linear guide rail protection device of the present invention, each fixing piece is fixed with a rotating shaft, and further includes a support plate, and the support plate is rotationally connected to the two rotating shafts;

[0010] Each rotating shaft is sleeved with a torsion spring, one end of the torsion spring is connected to the support plate, and the other end is connected to the fixing piece.

[0011] A reciprocating linear guide rail protection device of the present invention, a fixing piece on one side of the protective cover body is fixed with a collar, the collar is provided with a through hole, a connecting shaft is slidably and rotatably installed in the through hole, one end of a telescopic rod is fixed to the connecting shaft, and the other end of the telescopic rod is fixed with a positioning pin;

[0012] A fixing piece on the other side of the protective cover body is fixed with a locking block, and the locking block is provided with a positioning hole for inserting the positioning pin.

[0013] A reciprocating linear guide rail protection device of the present invention, the rotating shaft is fixed with a swing arm, and the support plate is fixed with a first limiting block.

[0014] A reciprocating linear guide rail protection device of the present invention, the support plate is fixed with a second limiting block.

[0015] A reciprocating linear guide rail protection device of the present invention, the telescopic rod includes a sleeve fixedly connected to the connecting shaft, an adjusting rod slides in the sleeve, the positioning pin is connected to the adjusting rod, and a locking bolt for fixing the position of the adjusting rod is threadedly connected to the sleeve;

[0016] The cross-sectional shape of the sleeve is circular.

[0017] A reciprocating linear guide rail protection device of the present invention, the telescopic assembly is a scissor arm.

[0018] A reciprocating linear guide rail protection device of the present invention, a baffle is fixed to the bottom end of the connecting shaft.

[0019] A reciprocating linear guide rail protection device of the present invention, the fixing piece is fixed with a fixing member for fixing the sleeve.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention sets the bellows protective cover in an openable and closable form, which not only does not prevent the bellows protective cover from telescoping, but also facilitates the installation of the bellows protective cover at any position, and is not limited to being installed only at the end of the reciprocating linear guide rail. Since the bellows protective cover can be replaced at any position of the slide rail, it is applicable to slide rails of various lengths and shapes, which provides greater flexibility for mechanical equipment with different configurations and layouts. The replacement of the bellows protective cover at any position of the reciprocating linear guide rail makes the maintenance operation more convenient. When it is necessary to overhaul, clean or replace the slide rail, only the protective cover of the corresponding part needs to be disassembled or replaced, without involving the disassembly and assembly of the entire protective cover, which reduces the maintenance time and cost and improves the usability of the equipment. Brief Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the present invention;

[0022] Figure 2 is Figure 1 a partial enlarged view of part A in

[0023] Figure 3 is Figure 1 a partial enlarged view of part B in

[0024] Figure 4 is Figure 1 a schematic structural diagram of the left - hand perspective;

[0025] Figure 5 is Figure 4 a partial enlarged view of part C in

[0026] Figure 6 is Figure 4 a partial enlarged view of part D in

[0027] Figure 7 is a schematic structural diagram of the fixing piece, rotating shaft, swing arm, slot one, slot two and torsion spring;

[0028] Reference numerals in the drawings: 1. Flexible connecting piece; 2. Protective cover body; 3. Fixing piece; 4. Reserved hole; 5. Telescopic assembly; 6. Rotating shaft; 7. Support plate; 8. Torsion spring; 9. Slot one; 10. Slot two; 11. Collar; 12. Connecting shaft; 13. Positioning pin; 14. Locking block; 15. Swing arm; 16. Limit block one; 17. Limit block two; 18. Sleeve; 19. Adjusting rod; 20. Locking bolt; 21. Baffle; 22. Fixing part. Detailed implementation manners

[0029] The following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention, but do not limit the scope of the present invention.

[0030] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] As Figure 1 and Figure 4As shown, a reciprocating linear guide rail protection device of the present invention includes an accordion-type protective cover; the accordion-type protective cover includes a flexible connecting piece 1 and a protective cover body 2 fixed on both sides of the flexible connecting piece 1. More specifically, the protective cover body 2 has the same folding principle as the accordion-type protective cover in the prior art;

[0032] The processing method of the accordion-type protective cover of the present invention can be referred to as follows, a section of the accordion-type protective cover in the prior art is cut off in the middle to form two protective cover bodies 2, and the two protective cover bodies 2 are connected by a flexible connecting piece 1, and the cross section of the flexible connecting piece 1 is wavy, which is the same as the cross section of the protective cover body 2, in order not to hinder the extension and contraction of the protective cover body 2, and at the same time, the flexible connecting piece 1 is made of flexible material, and will not affect the rotation of the protective cover bodies 2 on both sides. When the protective cover bodies 2 on both sides rotate, the protrusions on the inner wall of the protective cover body 2 that slide with the reciprocating linear guide rail can be separated from the reciprocating linear guide rail, and then the accordion-type protective cover of the present invention can be directly moved upward to separate it from the reciprocating linear guide rail;

[0033] The two protective cover bodies 2 are respectively slidably matched with one side of the reciprocating linear guide rail;

[0034] Along the length direction of the reciprocating linear guide rail, both ends of the protective cover body 2 are fixed with fixing plates 3. In order to facilitate the installation of the accordion-type protective cover of the present invention on the reciprocating linear guide rail, a reserved hole 4 is opened on the fixing plate 3, and a screw is passed through the reserved hole 4 to fix the fixing plate 3 on the slider sliding along the reciprocating linear guide rail;

[0035] In this embodiment, during normal use, the accordion-type protective cover of the present invention is as follows: Figure 1 and Figure 4 As shown, the protective cover bodies 2 on both sides can be slidably matched with the two sides of the reciprocating linear guide rail respectively, and the fixing plate 3 is fixed to the end of the slider or the reciprocating linear guide rail. When the slider moves, the accordion-type protective cover of the present invention is extended and retracted. When the accordion-type protective cover of the present invention needs to be removed, the screws used to fix the fixing plate 3 are first removed, and then the protective cover bodies 2 on both sides are rotated to separate them from the reciprocating linear guide rail, and then the accordion-type protective cover of the present invention is moved upward;

[0036] When installing the accordion-type protective cover of the present invention, there is no need to install it at the end of the reciprocating linear guide rail. First, rotate the protective cover body 2 on both sides outward, and then put the accordion-type protective cover of the present invention on the reciprocating linear guide rail, and make the protective cover body 2 slide and cooperate with the reciprocating linear guide rail.

[0037] A reciprocating linear guide rail protection device of the present invention, such as Figure 1 and Figure 4As shown, a telescopic component 5 is arranged on the side of the protective cover body 2, and both ends of the telescopic component 5 are rotatably connected to two fixing pieces 3 on the same protective cover body 2 respectively;

[0038] In this embodiment, the telescopic component 5 can only be telescoped along the length direction of the reciprocating linear guide rail. While the telescopic component 5 plays the role of connecting the fixing pieces 3 on both sides of the same protective cover body 2, it restricts the movement trajectories of both ends of the protective cover body 2 without affecting the telescoping of the protective cover body 2. At the same time, when the protective cover body 2 rotates, the rotation amounts of the protective cover bodies 2 on both sides can be made consistent.

[0039] A reciprocating linear guide rail protection device of the present invention, as Figures 1 to 5 and Figure 7 shown, each fixing piece 3 is fixed with a rotating shaft 6, and further includes a support plate 7, and the support plate 7 is rotatably connected to the two rotating shafts 6;

[0040] Each rotating shaft 6 is sleeved with a torsion spring 8. One end of the torsion spring 8 is connected to the support plate 7, and the other end is connected to the fixing piece 3. More specifically, one end of the torsion spring 8 is inserted into a slot 9 fixedly connected to the support plate 7, and the other end is inserted into a slot 10 connected to the fixing piece 3.

[0041] A reciprocating linear guide rail protection device of the present invention, as Figure 3 shown, a collar 11 is fixed to the fixing piece 3 on one side of the protective cover body 2. The collar 11 is provided with a through hole, and a connecting shaft 12 is slidably and rotatably installed in the through hole. More specifically, the cross-sectional shape of the connecting shaft 12 is circular, and the connecting shaft 12 passes through the through hole;

[0042] One end of a telescopic rod is fixed to the connecting shaft 12, and a positioning pin 13 is fixed to the other end of the telescopic rod;

[0043] A locking block 14 is fixed to the fixing piece 3 on the other side of the protective cover body 2. The locking block 14 is provided with a positioning hole for the positioning pin 13 to be inserted. In order to facilitate the insertion of the positioning pin 13 into the positioning hole, the bottom end of the positioning pin 13 is conical;

[0044] In this embodiment, when it is necessary to install or remove the bellows protective cover of the present invention, first, shorten the bellows protective cover of the present invention to the minimum, then manually rotate the connecting shaft 12, the telescopic rod and the positioning pin 13, and slide the connecting shaft 12, the telescopic rod and the positioning pin 13 to make the positioning pin 13 directly above the positioning hole. Then slide the connecting shaft 12, the telescopic rod and the positioning pin 13 to insert the positioning pin 13 into the positioning hole. Then hold the two telescopic rods with the same hand or both hands, and move the two telescopic rods closer to each other, so that the protective cover bodies 2 and the rotating shafts 6 on both sides rotate around the axis of the rotating shaft 6. During this process, the torsion spring 8 is further twisted. After releasing the hand, under the torsion of the torsion spring 8, each part can return to its original state;

[0045] In summary, during installation, first shorten the bellows protective cover of the present invention to the minimum, pass the positioning pin 13 through the positioning hole, then hold the two telescopic rods with one hand or both hands, and move the two telescopic rods closer to each other, so that the protective cover bodies 2 on both sides rotate around the axis of the rotating shaft 6 to open the bellows protective cover of the present invention. Then, sleeved the bellows protective cover of the present invention on the reciprocating linear guide rail, and then release the hand to make the protective cover body 2 slide fit with the reciprocating linear guide rail, and then perform subsequent connections;

[0046] During disassembly, first remove the screws for fixing the fixing piece 3, manually shorten the bellows protective cover of the present invention to the minimum, pass the positioning pin 13 through the positioning hole, then hold the two telescopic rods with one hand or both hands, and move the two telescopic rods closer to each other, so that the protective cover bodies 2 on both sides rotate around the axis of the rotating shaft 6 to open the bellows protective cover of the present invention. Then, move the bellows protective cover of the present invention upward, and there is no need to push the bellows protective cover of the present invention to the end of the reciprocating linear guide rail for disassembly.

[0047] A reciprocating linear guide rail protection device of the present invention, as Figure 2 and Figure 5 shown, a swing arm 15 is fixed to the rotating shaft 6, and a first limiting block 16 is fixed to the support plate 7;

[0048] A reciprocating linear guide rail protection device of the present invention, a second limiting block 17 is fixed to the support plate 7;

[0049] In this embodiment, the swing arm 15 rotates with the protective cover body 2 and the rotating shaft 6. As Figure 2 and Figure 5 shown, under the torsional force of the torsion spring 8, the swing arm 15 contacts the first limiting block 16. In this state, the bellows protective cover of the present invention forms a sliding fit relationship with the reciprocating linear guide rail. When holding the telescopic rod to open the protective cover body 2, when the swing arm 15 rotates with the rotating shaft 6 to contact the second limiting block 17, the protective cover body 2 reaches the limiting position, and the rotation angle of the protective cover body 2 is limited.

[0050] A reciprocating linear guide rail protection device of the present invention, as Figure 3 shown, the telescopic rod includes a sleeve 18 fixedly connected to the connecting shaft 12. An adjusting rod 19 slides in the sleeve 18. The positioning pin 13 is connected to the adjusting rod 19, and a locking bolt 20 for fixing the position of the adjusting rod 19 is threadedly connected to the sleeve 18;

[0051] The cross-sectional shape of the sleeve 18 is circular, which is more comfortable to hold;

[0052] In this embodiment, by providing the sleeve 18, the adjusting rod 19 and the locking bolt 20, the distance between the positioning pin 13 and the connecting shaft 12 can be adjusted, making it more convenient to insert the positioning pin 13 into the positioning hole and thus more convenient to use.

[0053] A reciprocating linear guide rail protection device of the present invention, wherein the telescopic assembly 5 is a scissor arm;

[0054] In this embodiment, as Figure 1 and Figure 4 shown, the scissor arm is composed of several rotatably connected connecting rods. Using the scissor arm as the telescopic assembly 5 occupies less space and has a large telescopic range, reducing the impact on the telescopic range of the protective cover body 2.

[0055] A reciprocating linear guide rail protection device of the present invention, as Figure 3 shown, a baffle 21 is fixed to the bottom end of the connecting shaft 12;

[0056] In this embodiment, the cross-sectional shape of the baffle 21 is larger than the cross-sectional shape of the inner wall of the through hole, and the baffle 21 can prevent the connecting shaft 12 from detaching from the collar 11.

[0057] A reciprocating linear guide rail protection device of the present invention, as Figure 3 shown, a fixing member 22 for fixing the sleeve 18 is fixed to the fixing piece 3;

[0058] In this embodiment, the fixing member 22 is a magnet. Correspondingly, the sleeve 18 is also made of a material that can be adsorbed by the magnet. When the bellows protective cover of the present invention is in normal use, the sleeve 18 is adsorbed and fixed by the magnet and will not shake. The fixing member 22 can also adopt structures such as C-shaped buckles, which will not be elaborated here.

[0059] When the present invention is in use, as Figure 1 shown, the state in the figure is the structural diagram of the bellows of the present invention in normal use. The fixing piece 3 is fixed to the end of the slider with screws. Since there are gaps between the fixing pieces 3, in order to prevent impurities from entering, a backing plate matching this gap can be fixed at the corresponding position of the slider to fill this gap and prevent impurities from entering. Under the torque action of the torsion spring 8, the swing arm 15 fixedly connected to the rotating shaft 6 contacts the limiting block 16;

[0060] When the bellows protective cover of the present invention needs to be removed, first remove the screws for fixing the fixing piece 3, and then manually shorten the bellows protective cover of the present invention to the minimum. During this process, the telescopic assembly 5 expands and contracts. Then manually insert the positioning pin 13 through the positioning hole, and then hold the two telescopic rods with the same hand or both hands and move the two telescopic rods closer to each other, so that the protective cover bodies 2 on both sides rotate around the axis of the rotating shaft 6. When the swing arm 15 contacts the second limiting block 17, the limiting position is reached, and the bellows protective cover of the present invention is opened. The protective cover body 2 is not in sliding fit with the reciprocating linear guide rail. Then move the bellows protective cover of the present invention upward, and there is no need to push the bellows protective cover of the present invention to the end of the reciprocating linear guide rail for removal. After removal, loosen the two telescopic rods, and under the torsion of the torsion spring 8, the swing arm 15 contacts the first limiting block 16.

[0061] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A reciprocating linear guide protection device, including a bellows protective cover; characterized in that, The bellows protective cover includes flexible connecting pieces and protective cover bodies fixed on both sides of the flexible connecting pieces. The two protective cover bodies are respectively in sliding fit with one side of the reciprocating linear guide rail; along the length direction of the reciprocating linear guide rail, fixing pieces are fixed at both ends of the protective cover body; A telescopic assembly is arranged on the side of the protective cover body. Both ends of the telescopic assembly are respectively rotatably connected with two fixing pieces on the same protective cover body; A rotating shaft is fixed on each fixing piece. A support plate is also included. The support plate is rotatably connected with the two rotating shafts; a torsion spring is sleeved on each rotating shaft. One end of the torsion spring is connected with the support plate, and the other end is connected with the fixing piece; wherein, the cross section of the flexible connecting piece is wavy and made of a flexible material, so that when the protective cover bodies on both sides rotate around their respective rotating shafts, the protrusions on the inner wall of the protective cover body that are in sliding fit with the reciprocating linear guide rail can be separated from the reciprocating linear guide rail, so that the protective device can be installed and disassembled at any position of the reciprocating linear guide rail without installing from the end of the reciprocating linear guide rail.

2. The reciprocating linear guide rail protection device according to claim 1, characterized in that, A collar is fixed on the fixing piece on one side of the protective cover body. A through hole is opened in the collar. A connecting shaft is slidably and rotatably installed in the through hole. One end of a telescopic rod is fixed on the connecting shaft, and a positioning pin is fixed on the other end of the telescopic rod; a locking block is fixed on the fixing piece on the other side of the protective cover body. A positioning hole for inserting the positioning pin is opened in the locking block.

3. The reciprocating linear guide rail protection device according to claim 2, characterized in that, A swing arm is fixed on the rotating shaft, and a first limiting block is fixed on the support plate.

4. The reciprocating linear guide rail protection device according to claim 3, characterized in that, A second limiting block is fixed on the support plate.

5. The reciprocating linear guide rail protection device according to claim 4, characterized in that, The telescopic rod includes a sleeve fixedly connected with the connecting shaft. An adjusting rod slides in the sleeve. The positioning pin is connected with the adjusting rod, and a locking bolt for fixing the position of the adjusting rod is in threaded connection with the sleeve; the cross section of the sleeve is circular.

6. The reciprocating linear guide rail protection device according to claim 5, wherein, The telescopic assembly is a scissor arm.

7. The reciprocating linear guide rail protection device according to claim 6, characterized in that, A baffle is fixed at the bottom end of the connecting shaft.

8. The reciprocating linear guide rail protection device according to claim 7, characterized in that, A fixing piece for fixing the sleeve is fixed on the fixing piece.

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