Flexible protective cover for hydraulic cylinder of numerical control machine tool

Abstract

The utility model discloses a numerical control machine tool hydraulic cylinder flexible protective cover which comprises a hydraulic cylinder body, a first fixing ring is fixedly connected to the outer surface of the lower end of the hydraulic cylinder body, a second fixing ring is fixedly connected to the outer surface of the upper end of the hydraulic cylinder body, and a lower connecting structure is arranged on the outer surface of the first fixing ring in a sleeved mode. The outer surface of the second fixing ring is sleeved with an upper connecting structure. The first lower connecting ring and the second lower connecting ring are arranged on the outer surface of the first fixing ring in a sleeving mode, the first upper connecting ring and the second upper connecting ring are arranged on the outer surface of the second fixing ring in a sleeving mode, and then the lower protective cover and the upper protective cover are inserted into the first inserting ring and the second inserting ring respectively. And the movable sliding block is connected to the interior of the movable sliding groove in a clamped mode, so that the hydraulic cylinder body is protected through cooperation between the lower connecting structure and the upper connecting structure, and the stability and sealing performance of equipment are improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of protective covers, and more specifically to a flexible protective cover for a hydraulic cylinder of a numerically controlled machine tool. Background Art

[0002] CNC hydraulics refers to the combination of CNC technology and hydraulic technology to achieve intelligent control and monitoring of hydraulic systems. CNC machine tool hydraulic cylinders are commonly used hydraulic actuators in CNC machine tools, used to achieve motion control of various parts of the machine tool. CNC machine tool hydraulic cylinders are usually composed of oil cylinders, pistons, piston rods, seals, cylinder heads and supports, and the hydraulic cylinder flexible protective cover is used to protect the piston rod from contamination and damage by foreign objects such as dust, and can be extended or compressed with the components, and can be used vertically or horizontally.

[0003] At present, during the use of the flexible protective covers in the prior art, since most of the existing flexible protective covers are directly put on the surface of the hydraulic cylinder, and then the two ends are respectively shrunk and fixed with iron rings, but after being fixed, the joints of the protective cover are still exposed to the outside, which to a certain extent affects the stability and sealing of the equipment. In addition, most of the existing flexible protective covers are in an integral style. If they are damaged, the entire equipment needs to be replaced, which to a certain extent wastes material costs. Therefore, a flexible protective cover for the hydraulic cylinder of a CNC machine tool is urgently needed to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a flexible protective cover for a hydraulic cylinder of a numerically controlled machine tool to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a flexible protective cover for a hydraulic cylinder of a CNC machine tool, comprising:

[0006] A hydraulic cylinder body, wherein a first fixing ring is fixedly connected to the outer surface of the lower end of the hydraulic cylinder body, and a second fixing ring is fixedly connected to the outer surface of the upper end of the hydraulic cylinder body, a lower connecting structure is sleeved on the outer surface of the first fixing ring, and an upper connecting structure is sleeved on the outer surface of the second fixing ring;

[0007] The lower connecting structure includes a first lower connecting ring, and a second lower connecting ring is attached to one side of the first lower connecting ring, and a first annular groove is opened at the middle position inside the first lower connecting ring and the second lower connecting ring, the outer diameter size of the first fixing ring is the same as the inner diameter size of the first annular groove, and the outer surface of the first fixing ring is snap-connected to the inside of the first annular groove, the internal threads at the connection between the two ends of the first lower connecting ring and the second lower connecting ring are connected with the first fixing bolt, the upper end surfaces of the first lower connecting ring and the second lower connecting ring are fixedly connected with the first insertion ring, and the internal threads on the outer surface of the first insertion ring are connected with the first positioning bolt, and the first positioning bolt is provided in multiple groups, a lower protective cover is inserted inside the upper end surface of the first insertion ring, and a movable sliding groove is opened on the inner wall surface inside the lower protective cover;

[0008] The upper connecting structure includes a first upper connecting ring, and a second upper connecting ring is attached to one side of the first upper connecting ring, and a second annular groove is opened at the middle position inside the first upper connecting ring and the second upper connecting ring, the outer diameter size of the second fixing ring is the same as the inner diameter size of the second annular groove, and the outer surface of the first fixing ring is snap-connected to the inside of the second annular groove, the internal threads at the connection between the first and second upper connecting rings are connected with second fixing bolts, the second upper connecting ring and the second upper connecting ring are fixedly connected with a second insert ring on the lower end surfaces, and the internal threads on the outer surface of the second insert ring are connected with a second positioning bolt, and multiple groups of second positioning bolts are provided, an upper protective cover is inserted into the interior of the lower end surface of the second insert ring, and a movable slider is fixedly connected to the outer surface of the lower end of the upper protective cover, and the inner wall surface of the upper protective cover is attached to the outer surface of the lower end of the hydraulic cylinder body.

[0009] Preferably, a connecting block is provided on the outer surface of one end of the first lower connecting ring, and a connecting groove is provided on the outer surface of the other end of the first lower connecting ring, a connecting groove is provided on the outer surface of one end of the second lower connecting ring, and a connecting block is provided on the outer surface of the other end of the second lower connecting ring, and the first lower connecting ring and the second lower connecting ring correspond to each other, an insertion groove is provided on the inner surface of the upper end surface of the first insertion ring, and the inner dimension of the insertion groove is matched with the outer dimension of the lower end of the lower protective cover, a threaded groove is provided on the inner surface of the lower end of the lower protective cover, and the position of the threaded groove corresponds to the position of the first positioning bolt.

[0010] Preferably, a connecting block is provided on the outer surface of one end of the first upper connecting ring, and a connecting groove is provided on the outer surface of the other end of the first upper connecting ring, a connecting groove is provided on the outer surface of one end of the second upper connecting ring, and a connecting block is provided on the outer surface of the other end of the second upper connecting ring, and the first upper connecting ring and the second upper connecting ring correspond to each other, an insertion groove is provided on the inside of the lower end surface of the second insertion ring, and the internal size of the insertion groove is matched with the external size of the upper end of the upper protective cover, a threaded groove is provided on the inside of the outer surface of the upper end of the upper protective cover, and the position of the threaded groove corresponds to the position of the second positioning bolt.

[0011] Preferably, the movable slide groove is set as a rectangular slide groove, the movable slider is set as a rectangular slider, and the length and width dimensions of the rectangular slider are the same as the length and width dimensions inside the rectangular slide groove, and the rectangular slider is snap-connected to the inside of the rectangular slide groove.

[0012] The technical effects and advantages of the utility model are as follows: the utility model sleeves the first lower connecting ring and the second lower connecting ring on the outer surface of the first fixing ring, and sleeves the first upper connecting ring and the second upper connecting ring on the outer surface of the second fixing ring, and then inserts the lower protective cover and the upper protective cover into the first inserting ring and the second inserting ring respectively, and makes the movable slider engage and connect to the inside of the movable slide groove, thereby protecting the hydraulic cylinder body through the cooperation between the lower connecting structure and the upper connecting structure, avoiding the situation where the joint is exposed to the outside, and improving the stability and sealing of the equipment to a certain extent;

[0013] By rotating the first positioning bolt and the second positioning bolt, the lower protective cover and the movable slide groove can be separated from the first insertion ring and the second insertion ring. By rotating the first fixing bolt and the second fixing bolt, the first lower connecting ring, the second lower connecting ring and the first upper connecting ring, the second upper connecting ring can be separated. When the equipment is damaged, it is convenient to replace the damaged parts separately, which saves material costs to a certain extent. Moreover, the overall structural design is simple and reasonable, the practicability is high, and it is easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the hydraulic cylinder body of the utility model.

[0016] Figure 3 It is a schematic exploded view of the three-dimensional structure of the lower connecting structure of the utility model.

[0017] Figure 4 It is a schematic exploded view of the three-dimensional structure of the upper connecting structure of the utility model.

[0018] Figure 5 It is a schematic diagram of the use state of the utility model.

[0019] The accompanying drawings are marked as follows: 1. hydraulic cylinder body; 2. first fixing ring; 3. second fixing ring; 4. lower connecting structure; 41. first lower connecting ring; 42. second lower connecting ring; 43. first annular groove; 44. first fixing bolt; 45. first plug-in ring; 46. first positioning bolt; 47. lower protective cover; 48. movable slide groove; 5. upper connecting structure; 51. first upper connecting ring; 52. second upper connecting ring; 53. second annular groove; 54. second fixing bolt; 55. second plug-in ring; 56. second positioning bolt; 57. upper protective cover; 58. movable slide block. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the protective cover involved in the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0021] Reference Figure 1-5 The utility model provides a flexible protective cover for a hydraulic cylinder of a CNC machine tool, comprising:

[0022] A hydraulic cylinder body 1, a first fixing ring 2 is fixedly connected to the outer surface of the lower end of the hydraulic cylinder body 1, and a second fixing ring 3 is fixedly connected to the outer surface of the upper end of the hydraulic cylinder body 1, a lower connecting structure 4 is sleeved on the outer surface of the first fixing ring 2, and an upper connecting structure 5 is sleeved on the outer surface of the second fixing ring 3;

[0023] The lower connecting structure 4 includes a first lower connecting ring 41, and a second lower connecting ring 42 is attached to one side of the first lower connecting ring 41, and a first annular groove 43 is opened at the middle position inside the first lower connecting ring 41 and the second lower connecting ring 42, the outer diameter size of the first fixing ring 2 is the same as the inner diameter size of the first annular groove 43, and the outer surface of the first fixing ring 2 is snap-connected to the inside of the first annular groove 43, the internal thread connection of the connection between the two ends of the first lower connecting ring 41 and the second lower connecting ring 42 is connected with a first fixing bolt 44, the first lower connecting ring 41 and the second lower connecting ring 42 are fixedly connected with a first insertion ring 45 on the upper end surface, and the internal thread connection of the outer surface of the first insertion ring 45 is connected with a first positioning bolt 46, and the first positioning bolt 46 is provided with a plurality of groups, a lower protective cover 47 is inserted inside the upper end surface of the first insertion ring 45, and a movable sliding groove 48 is opened on the inner wall surface of the lower protective cover 47, according to Figure 2 and Figure 3As shown, when the device is in use, the design enables the first lower connecting ring 41 and the second lower connecting ring 42 to be engaged with the outer surface of the first fixing ring 2 through the first annular groove 43, and the first lower connecting ring 41 and the second lower connecting ring 42 can be fixed by rotating the first fixing bolt 44, so as to facilitate the installation and fixing of the positions of the first lower connecting ring 41 and the second lower connecting ring 42;

[0024] A connecting block is provided on the outer surface of one end of the first lower connecting ring 41, and a connecting groove is provided on the outer surface of the other end of the first lower connecting ring 41, a connecting groove is provided on the outer surface of one end of the second lower connecting ring 42, and a connecting block is provided on the outer surface of the other end of the second lower connecting ring 42, and the first lower connecting ring 41 corresponds to the second lower connecting ring 42, an inserting groove is provided on the inner surface of the upper end surface of the first inserting ring 45, and the inner size of the inserting groove is matched with the outer size of the lower end of the lower protective cover 47, a threaded groove is provided on the inner surface of the lower end outer surface of the lower protective cover 47, and the position of the threaded groove corresponds to the position of the first positioning bolt 46, according to Figure 3 As shown, when the device is in use, the design enables the connection block on the outer surface of one end of the first lower connection ring 41 to fit inside the connection groove provided on the outer surface of one end of the second lower connection ring 42, and at the same time, the connection block provided on the outer surface of the other end of the second lower connection ring 42 can fit inside the connection groove provided on the outer surface of the other end of the first lower connection ring 41, thereby facilitating the connection between the first lower connection ring 41 and the second lower connection ring 42, and the outer surface of the lower end of the lower protective cover 47 can be inserted into the interior of the first insertion ring 45, and at the same time, the position of the lower protective cover 47 can be fixed by rotating the first positioning bolt 46, thereby facilitating the installation of the lower connection structure 4 on the outer surface of the first fixing ring 2;

[0025] The upper connecting structure 5 includes a first upper connecting ring 51, and a second upper connecting ring 52 is attached to one side of the first upper connecting ring 51, and a second annular groove 53 is opened at the middle position inside the first upper connecting ring 51 and the second upper connecting ring 52, the outer diameter of the second fixing ring 3 is the same as the inner diameter of the second annular groove 53, and the outer surface of the first fixing ring 2 is snap-connected to the inside of the second annular groove 53, the internal threaded connection of the two ends of the first upper connecting ring 51 and the second upper connecting ring 52 is connected with a second fixing bolt 54, the lower end surfaces of the first upper connecting ring 51 and the second upper connecting ring 52 are fixedly connected with a second inserting ring 55, and the internal threaded connection of the outer surface of the second inserting ring 55 is connected with a second positioning bolt 56, and the second positioning bolt 56 is provided with a plurality of groups, an upper protective cover 57 is inserted inside the lower end surface of the second inserting ring 55, and a movable slider 58 is fixedly connected to the outer surface of the lower end of the upper protective cover 57, and the inner wall surface of the upper protective cover 57 is attached to the outer surface of the lower end of the hydraulic cylinder body 1, according to Figure 2 and Figure 4As shown, when the device is in use, the design enables the first upper connecting ring 51 and the second upper connecting ring 52 to be engaged with the outer surface of the second fixing ring 3 through the second annular groove 53, and the first upper connecting ring 51 and the second upper connecting ring 52 can be fixed by rotating the second fixing bolt 54, so as to facilitate the installation and fixing of the positions of the first upper connecting ring 51 and the second upper connecting ring 52;

[0026] A connecting block is provided on the outer surface of one end of the first upper connecting ring 51, and a connecting groove is provided on the outer surface of the other end of the first upper connecting ring 51, a connecting groove is provided on the outer surface of one end of the second upper connecting ring 52, and a connecting block is provided on the outer surface of the other end of the second upper connecting ring 52, and the first upper connecting ring 51 and the second upper connecting ring 52 correspond to each other, an inserting groove is provided on the inner surface of the lower end of the second inserting ring 55, and the inner size of the inserting groove is adapted to the outer size of the upper end of the upper protective cover 57, a threaded groove is provided on the inner surface of the upper end of the upper protective cover 57, and the position of the threaded groove corresponds to the position of the second positioning bolt 56, according to Figure 4 As shown, when the device is in use, the design enables the connection block on the outer surface of one end of the first upper connection ring 51 to fit inside the connection groove provided on the outer surface of one end of the second upper connection ring 52, and at the same time, the connection block provided on the outer surface of the other end of the second upper connection ring 52 can fit inside the connection groove provided on the outer surface of the other end of the first upper connection ring 51, thereby facilitating the connection between the first upper connection ring 51 and the second upper connection ring 52, and the outer surface of the upper end of the upper protective cover 57 can be inserted into the interior of the second insertion ring 55, and at the same time, the position of the upper protective cover 57 can be fixed by rotating the second positioning bolt 56, thereby facilitating the installation of the upper connection structure 5 on the outer surface of the second fixing ring 3;

[0027] The movable chute 48 is set as a rectangular chute, and the movable slider 58 is set as a rectangular slider, and the length and width of the rectangular slider are the same as the length and width of the inside of the rectangular chute, and the rectangular slider is connected to the inside of the rectangular chute by snapping. Figure 3 and Figure 4 As shown, when the equipment is in use, the design enables the lower protective cover 47 and the upper protective cover 57 to move synchronously when the hydraulic cylinder body 1 is started to extend and retract, and the moving slider 58 moves synchronously inside the moving slide groove 48, thereby facilitating the protection of the hydraulic cylinder body 1 through the lower connecting structure 4 and the upper connecting structure 5 to avoid contamination and damage by foreign objects such as dust.

[0028] Working principle: When the equipment is in use, firstly, the first lower connecting ring 41 and the second lower connecting ring 42 are sleeved on the outer surface of the first fixing ring 2 through the first annular groove 43, and then the first fixing bolt 44 is rotated to fix the position of the first lower connecting ring 41 and the second lower connecting ring 42, and then the first upper connecting ring 51 and the second upper connecting ring 52 are sleeved on the outer surface of the second fixing ring 3 through the second annular groove 53, and the second fixing bolt 54 is rotated to fix the position of the first upper connecting ring 51 and the second upper connecting ring 52, and then the outer surface of the upper end of the upper protective cover 57 is inserted into the interior of the second insertion ring 55, and the position of the upper protective cover 57 is fixed by rotating the second positioning bolt 56, and then the lower protective cover 47 is inserted into the interior of the first insertion ring 45, and the movable slide groove 48 is engaged with the outer surface of the movable slide block 58, and the position of the lower protective cover 47 can be fixed by rotating the first positioning bolt 46, thereby facilitating the installation of the lower connecting structure 4 and the upper connecting structure 5 on the outer surfaces of the first fixing ring 2 and the second fixing ring 3;

[0029] When the equipment is in use, the hydraulic cylinder body 1 can be started to extend and retract. When the hydraulic cylinder body 1 extends and retracts, it can synchronously drive the first fixing ring 2 and the second fixing ring 3 to move up and down, thereby making the lower protective cover 47 and the upper protective cover 57 move synchronously, and making the moving slider 58 move synchronously inside the moving slide groove 48, so as to facilitate the protection of the hydraulic cylinder body 1 through the lower connecting structure 4 and the upper connecting structure 5 to avoid it from being polluted and damaged by foreign objects such as dust. When the equipment is in use, the equipment can be disassembled by rotating the first fixing bolt 44, the first positioning bolt 46, the second fixing bolt 54, and the second positioning bolt 56, thereby facilitating the replacement of damaged parts separately. The above is the entire working principle of the present invention.

[0030] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0031] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0032] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A flexible protective cover for a hydraulic cylinder of a CNC machine tool, characterized in that: include: A hydraulic cylinder body (1), wherein a first fixing ring (2) is fixedly connected to the outer surface of the lower end of the hydraulic cylinder body (1), and a second fixing ring (3) is fixedly connected to the outer surface of the upper end of the hydraulic cylinder body (1), a lower connecting structure (4) is sleeved on the outer surface of the first fixing ring (2), and an upper connecting structure (5) is sleeved on the outer surface of the second fixing ring (3); The lower connecting structure (4) comprises a first lower connecting ring (41), and a second lower connecting ring (42) is attached to one side of the first lower connecting ring (41), and a first annular groove (43) is provided at a middle position inside the first lower connecting ring (41) and the second lower connecting ring (42), the outer diameter of the first fixing ring (2) is the same as the inner diameter of the first annular groove (43), and the outer surface of the first fixing ring (2) is snap-connected to the inside of the first annular groove (43), and the first lower connecting ring (41) and the second lower connecting ring (42) are connected to each other. (42) The internal threads at the two end connections are connected with a first fixing bolt (44); the first lower connecting ring (41) and the upper end surface of the second lower connecting ring (42) are fixedly connected with a first inserting ring (45); the internal threads on the outer surface of the first inserting ring (45) are connected with a first positioning bolt (46); and the first positioning bolt (46) is provided in multiple groups; a lower protective cover (47) is inserted inside the upper end surface of the first inserting ring (45), and a movable sliding groove (48) is provided on the inner wall surface of the lower protective cover (47); The upper connection structure (5) comprises a first upper connection ring (51), and a second upper connection ring (52) is attached to one side of the first upper connection ring (51), and a second annular groove (53) is provided at a middle position inside the first upper connection ring (51) and the second upper connection ring (52), the outer diameter of the second fixing ring (3) is the same as the inner diameter of the second annular groove (53), and the outer surface of the first fixing ring (2) is snap-connected to the inside of the second annular groove (53), and the internal threads at the connection points of the first upper connection ring (51) and the second upper connection ring (52) are connected. A second fixing bolt (54), a second insert ring (55) is fixedly connected to the lower end surface of the first upper connecting ring (51) and the second upper connecting ring (52), and the inner thread of the outer surface of the second insert ring (55) is connected to the second positioning bolt (56), and the second positioning bolt (56) is provided in multiple groups, an upper protective cover (57) is inserted into the inner part of the lower end surface of the second insert ring (55), and a movable slider (58) is fixedly connected to the outer surface of the lower end of the upper protective cover (57), and the inner wall surface of the upper protective cover (57) is in contact with the outer surface of the lower end of the hydraulic cylinder body (1).

2. The flexible protective cover for a hydraulic cylinder of a CNC machine tool according to claim 1, characterized in that: A connecting block is provided on the outer surface of one end of the first lower connecting ring (41), and a connecting groove is provided on the outer surface of the other end of the first lower connecting ring (41); a connecting groove is provided on the outer surface of one end of the second lower connecting ring (42), and a connecting block is provided on the outer surface of the other end of the second lower connecting ring (42); the first lower connecting ring (41) and the second lower connecting ring (42) correspond to each other; an inserting groove is provided on the inner surface of the upper end of the first inserting ring (45), and the inner size of the inserting groove is matched with the outer size of the lower end of the lower protective cover (47); a threaded groove is provided on the inner surface of the lower end of the lower protective cover (47), and the position of the threaded groove corresponds to the position of the first positioning bolt (46).

3. The flexible protective cover for a hydraulic cylinder of a CNC machine tool according to claim 1, characterized in that: A connecting block is provided on the outer surface of one end of the first upper connecting ring (51), and a connecting groove is provided on the outer surface of the other end of the first upper connecting ring (51); a connecting groove is provided on the outer surface of one end of the second upper connecting ring (52), and a connecting block is provided on the outer surface of the other end of the second upper connecting ring (52); the first upper connecting ring (51) and the second upper connecting ring (52) correspond to each other; an inserting groove is provided on the inner surface of the lower end of the second inserting ring (55), and the inner size of the inserting groove is matched with the outer size of the upper end of the upper protective cover (57); a threaded groove is provided on the inner surface of the upper end of the upper protective cover (57), and the position of the threaded groove corresponds to the position of the second positioning bolt (56).

4. The flexible protective cover for a hydraulic cylinder of a CNC machine tool according to claim 1, characterized in that: The movable slide groove (48) is set as a rectangular slide groove, and the movable slider (58) is set as a rectangular slider, and the length and width dimensions of the rectangular slider are the same as the length and width dimensions inside the rectangular slide groove, and the rectangular slider is snap-connected to the inside of the rectangular slide groove.

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