Lead screw protection device for perforating host

Abstract

The utility model discloses a lead screw protection device for a perforating host. The lead screw protection device comprises a first connecting flange, a second connecting flange and at least two protection sleeves, wherein an adjusting seat, a mounting seat and a lead screw are arranged in the perforating main machine, the protective sleeves are sequentially arranged from inside to outside in a sleeving mode and used for being arranged on the outer side of the lead screw in a sleeving mode, and the protective sleeve on the inner side is arranged in the adjacent protective sleeve on the outer side in a sliding mode in the axial direction; a limiting mechanism used for preventing the protective sleeves from being separated from each other in the sliding process is arranged between every two adjacent protective sleeves, and a first connecting flange is connected to the innermost protective sleeve and used for being connected with any one of the adjusting base and the mounting base. The second connecting flange is connected to the protecting sleeve on the outermost side and used for being connected with the other one of the adjusting base and the mounting base. Stretching and retracting are achieved through relative sliding between the protective sleeves, aging cracking and damage are avoided, the service life can be prolonged, frequent replacement is avoided, and then cost can be saved.

Description

Technical Field

[0001] The utility model relates to a screw rod protection device for a punching main machine. Background Art

[0002] At present, the pressing device in the punching main machine has components such as a mounting seat, an adjustment seat, a screw and a nut; wherein the nut is connected to the mounting seat, the screw is connected with the nut in cooperation, and the screw is connected with the adjustment seat in rotation, and the adjustment seat can be driven to move toward or away from the mounting seat by rotating the screw. In actual use, dust and other impurities will adhere to the surface of the screw and cause the screw to wear and get stuck, and moisture entering the screw will cause the screw to rust and corrode. Therefore, in order to ensure the normal operation of the screw and extend the service life of the screw, it is necessary to wrap the screw to achieve the purpose of dustproof, waterproof, and prevent foreign objects from colliding and damaging the screw.

[0003] A Chinese patent with publication number CN216666391U discloses a ball screw dustproof device, in which a telescopic leather cover is put on the outside of the screw to achieve dustproof and waterproof effects. However, the service life of the telescopic leather cover is relatively short, and the telescopic leather cover will frequently telescope and deform during use. As the use time increases, the telescopic leather cover will age and crack, and then break. Therefore, the telescopic leather cover needs to be replaced regularly, which increases the cost of use; and the replacement process is cumbersome and time-consuming, which also increases the labor cost of replacement. In addition, the telescopic leather cover is easily damaged and deformed by impact from foreign objects, and is also easily pierced by sharp corners and waste materials, and has poor impact resistance. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a screw rod protection device for a punching main machine, which realizes extension and retraction through relative sliding between protective sleeves, will not age, crack or break, can extend the service life, avoid frequent replacement, and thus save costs.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a screw rod protection device for a punching main machine, which includes a first connecting flange, a second connecting flange and at least two protective sleeves;

[0006] The punching host is provided with an adjustment seat, a mounting seat and a screw rod;

[0007] The protective sleeves are stacked one after another from the inside to the outside and are used to be sleeved on the outside of the screw rod;

[0008] The inner protective sleeve is slidably disposed in the outer adjacent protective sleeve along the axial direction;

[0009] A limiting mechanism is provided between adjacent protective sleeves to prevent adjacent protective sleeves from being separated from each other during the sliding process;

[0010] The first connecting flange is connected to the innermost protective sleeve and is used to be connected to any one of the adjusting seat and the mounting seat;

[0011] The second connecting flange is connected to the outermost protective sleeve and is used to be connected to the other one of the adjusting seat and the mounting seat.

[0012] Furthermore, the first connecting flange is threadedly connected to the innermost protective sleeve, and the second connecting flange is threadedly connected to the outermost protective sleeve.

[0013] In order to further improve the sealing effect, the threaded connection between the first connecting flange and the innermost protective sleeve is coated with sealant, and the threaded connection between the second connecting flange and the outermost protective sleeve is coated with sealant.

[0014] Furthermore, the inner circumference of the first connecting flange is threadedly connected to the innermost protective sleeve, and the outer circumference of the second connecting flange is threadedly connected to the outermost protective sleeve.

[0015] A specific structure of the limiting mechanism is further provided, wherein the limiting mechanism comprises a first limiting boss and a second limiting boss;

[0016] The first limiting boss is connected to the outer side of the two adjacent protective sleeves and protrudes radially inward;

[0017] The second limiting boss is connected to the inner side of the two adjacent protective sleeves and protrudes radially outward;

[0018] The first limiting boss is used to abut against the second limiting boss to prevent the adjacent protective sleeve from falling off during the sliding process.

[0019] Furthermore, the inner side wall of the first limiting boss is gap-matched with the outer side wall of the protective sleeve adjacent to the inner side;

[0020] The outer side wall of the second limiting boss is clearance-matched with the inner side wall of the protective sleeve adjacent to the outer side.

[0021] To further improve the sealing effect, the first connecting flange is used to connect to the mounting seat, and the second connecting flange is used to connect to the adjusting seat;

[0022] The first connecting flange is connected to a first sealing ring for forming a seal between the first connecting flange and the mounting seat;

[0023] The second connecting flange is connected with a second sealing ring for forming a seal between the second connecting flange and the adjusting seat.

[0024] Furthermore, the first sealing ring is embedded in the end wall of the first connecting flange, and the second sealing ring is embedded in the inner side wall of the second connecting flange.

[0025] Furthermore, the protective sleeve is made of metal.

[0026] Furthermore, three protective sleeves are stacked in sequence from the inside to the outside.

[0027] After adopting the above technical solution, a nut is also connected to the mounting seat, the screw rod is connected with the nut in cooperation, one end of the screw rod is connected with the adjustment seat in rotation, and the screw rod rotates to drive the adjustment seat to move toward or away from the mounting seat. The first connecting flange is connected to the mounting seat, and the second connecting flange is connected to the adjustment seat. In the process of the adjustment seat moving toward or away from the mounting seat, the first connecting flange and the second connecting flange move toward or away from each other, thereby driving the stacked protective sleeves to slide against each other to achieve shortening and elongation, so that the protective sleeves are always covered on the outside of the screw rod to play a protective role and prevent the intrusion of dust and water. In the embodiment of the present application, elongation and shortening are achieved by relative sliding between adjacent protective sleeves, and the protective sleeves themselves are not deformed, and the protective sleeves will not age, crack or break. Compared with the telescopic leather sleeves used in the prior art, the service life is greatly extended, frequent replacement is avoided, and cost is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the screw rod protection device for the punching main machine of the utility model in an extended state;

[0029] Figure 2 It is a structural schematic diagram of the screw rod protection device for the punching main machine of the utility model in a shortened state;

[0030] Figure 3 The utility model is a structural schematic diagram of a screw rod protection device for a punching main machine installed on the punching main machine. DETAILED DESCRIPTION

[0031] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0032] like Figures 1 to 3 As shown, a screw rod protection device for a punching main machine includes a first connecting flange 1, a second connecting flange 2 and at least two protective sleeves 3;

[0033] The punching main machine is provided with an adjustment seat 100, a mounting seat 200 and a screw rod 300;

[0034] The protective sleeves 3 are stacked one after another from the inside to the outside and are used to be sleeved on the outside of the screw rod 300;

[0035] The inner protective sleeve 3 is axially slidably disposed in the outer adjacent protective sleeve 3;

[0036] A limiting mechanism is provided between adjacent protective sleeves 3 to prevent adjacent protective sleeves 3 from being separated from each other during the sliding process;

[0037] The first connecting flange 1 is connected to the innermost protective sleeve 3 and is used to be connected to any one of the adjusting seat 100 and the mounting seat 200;

[0038] The second connecting flange 2 is connected to the outermost protective sleeve 3 and is used to be connected to the other one of the adjusting seat 100 and the mounting seat 200 .

[0039] Specifically, the punching main machine also has a nut 400, the nut 400 is connected to the mounting seat 200, the screw rod 300 is cooperatively connected with the nut 400, one end of the screw rod 300 is rotatably connected with the adjustment seat 100, and when the screw rod 300 rotates, it drives the adjustment seat 100 to move toward or away from the mounting seat 200. In this embodiment, the first connecting flange 1 is connected to the mounting seat 200, and the second connecting flange 2 is connected to the adjustment seat 100. When the adjustment seat 100 moves toward or away from the mounting seat 200, the first connecting flange 1 and the second connecting flange 2 move toward or away from each other, thereby driving the stacked protective sleeves 3 to slide against each other to shorten and lengthen, thereby making the protective sleeve 3 always cover the outside of the screw rod 300 to play a protective role and prevent the intrusion of dust and water. In this embodiment, the extension and contraction are achieved by relative sliding between adjacent protective covers 3, and the protective covers 3 themselves are not deformed, and the protective covers 3 will not be damaged due to aging and cracking. Compared with the telescopic leather covers used in the prior art, the service life is greatly extended, frequent replacement is avoided, and the cost is saved. Among them, a small gap labyrinth seal can be used between adjacent protective covers 3.

[0040] like Figures 1 to 3 As shown, the first connecting flange 1 is threadedly connected to the innermost protective sleeve 3 , and the second connecting flange 2 is threadedly connected to the outermost protective sleeve 3 .

[0041] like Figures 1 to 3As shown, the threaded connection between the first connecting flange 1 and the innermost protective sleeve 3 is coated with sealant, and the threaded connection between the second connecting flange 2 and the outermost protective sleeve 3 is coated with sealant, thereby preventing water leakage between the first connecting flange 1 and the innermost protective sleeve 3 and between the second connecting flange 2 and the outermost protective sleeve 3, thereby improving the sealing effect.

[0042] like Figures 1 to 3 As shown, the inner circumference of the first connecting flange 1 is threadedly connected to the innermost protective sleeve 3 , and the outer circumference of the second connecting flange 2 is threadedly connected to the outermost protective sleeve 3 .

[0043] like Figure 1 , 2 As shown, the limiting mechanism may include a first limiting boss 4 and a second limiting boss 5;

[0044] The first limiting boss 4 is connected to the outer side of the two adjacent protective sleeves 3 and protrudes radially inward;

[0045] The second limiting boss 5 is connected to the inner side of the two adjacent protective sleeves 3 and protrudes radially outward;

[0046] The first limiting boss 4 is used to abut against the second limiting boss 5 to prevent the adjacent protective sleeves 3 from being separated during the sliding process. In this embodiment, the limiting mechanism is provided between any two adjacent protective sleeves 3.

[0047] like Figure 1 , 2 As shown, the inner wall of the first limiting boss 4 is gap-matched with the outer wall of the inner adjacent protective sleeve 3, and the outer wall of the second limiting boss 5 is gap-matched with the inner wall of the outer adjacent protective sleeve 3. Thus, a small gap labyrinth seal is formed between the adjacent protective sleeves 3.

[0048] In this embodiment, the first connecting flange 1 is used to connect with the mounting seat 200, and the second connecting flange 2 is used to connect with the adjustment seat 100;

[0049] The first connecting flange 1 is connected with a first sealing ring 6 for forming a seal between the first connecting flange 1 and the mounting seat 200;

[0050] The second connecting flange 2 is connected with a second sealing ring 7 for forming a seal between the second connecting flange 2 and the adjusting seat 100. The first connecting flange 1 and the mounting seat 200 may be connected via fasteners, and the second connecting flange 2 and the adjusting seat 100 may be connected via fasteners.

[0051] like Figures 1 to 3 As shown, the first sealing ring 6 is embedded in the end wall of the first connecting flange 1 , and the second sealing ring 7 is embedded in the inner wall of the second connecting flange 2 .

[0052] Specifically, the protective sleeve 3 is made of metal, which can enhance the structural strength and durability of the protective sleeve 3, so that the protective sleeve 3 will not age and crack, will not be damaged, will not be deformed by the impact of foreign objects, and will not be pierced by sharp corners and waste materials, which greatly improves the impact resistance. The screw protection device for the perforating host in the embodiment of the present application has good protection performance, effectively prevents the intrusion of water and dust, and greatly extends the service life, avoids frequent replacement, and saves costs; in this embodiment, the protective sleeve 3 is made of stainless steel, and the protective sleeve 3 is stacked in sequence from the inside to the outside. There are 3 sets.

[0053] In summary, the mounting seat 200 is also connected with a nut 400, the screw rod 300 is connected with the nut 400, one end of the screw rod 300 is connected with the adjustment seat 100 for rotation, and the screw rod 300 drives the adjustment seat 100 to move toward or away from the mounting seat 200 when rotating. The first connecting flange 1 is connected with the mounting seat 200, and the second connecting flange 2 is connected with the adjustment seat 100. When the adjustment seat 100 moves toward or away from the mounting seat 200, the first connecting flange 1 and the second connecting flange 2 move toward or away from each other, thereby driving the stacked protective sleeves 3 to slide against each other to shorten and lengthen, thereby making the protective sleeves 3 always cover the outside of the screw rod 300 to play a protective role and prevent the intrusion of dust and water. In the embodiment of the present application, extension and shortening are achieved through relative sliding between adjacent protective covers 3, the protective covers 3 themselves are not deformed, and the protective covers 3 will not age, crack, or break. Compared with the telescopic leather covers used in the prior art, the service life is greatly extended, frequent replacement is avoided, and cost is saved.

[0054] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screw rod protection device for a punching machine, characterized in that: It comprises a first connecting flange (1), a second connecting flange (2) and at least two protective sleeves (3); The punching main machine is provided with an adjustment seat (100), a mounting seat (200) and a screw rod (300); The protective sleeves (3) are stacked one after another from the inside to the outside and are used to be sleeved on the outside of the screw rod (300); The inner protective sleeve (3) is slidably disposed in the outer adjacent protective sleeve (3) along the axial direction; A limiting mechanism is provided between adjacent protective sleeves (3) for preventing adjacent protective sleeves (3) from being separated from each other during the sliding process; The first connecting flange (1) is connected to the innermost protective sleeve (3) and is used to be connected to any one of the adjusting seat (100) and the mounting seat (200); The second connecting flange (2) is connected to the outermost protective sleeve (3) and is used to be connected to the other of the adjusting seat (100) and the mounting seat (200).

2. The screw rod protection device for the punching main machine according to claim 1 is characterized in that: The first connection flange (1) is threadedly connected to the innermost protective sleeve (3), and the second connection flange (2) is threadedly connected to the outermost protective sleeve (3).

3. The screw rod protection device for the punching main machine according to claim 2 is characterized in that: The threaded connection between the first connection flange (1) and the innermost protective sleeve (3) is coated with sealant, and the threaded connection between the second connection flange (2) and the outermost protective sleeve (3) is coated with sealant.

4. The screw rod protection device for the punching main machine according to claim 2, characterized in that: The inner circumference of the first connecting flange (1) is threadedly connected to the innermost protective sleeve (3), and the outer circumference of the second connecting flange (2) is threadedly connected to the outermost protective sleeve (3).

5. The screw rod protection device for the punching main machine according to claim 1, characterized in that: The limiting mechanism comprises a first limiting boss (4) and a second limiting boss (5); The first limiting boss (4) is connected to the outer side of the two adjacent protective sleeves (3) and protrudes radially inwards; The second limiting boss (5) is connected to the inner side of the two adjacent protective sleeves (3) and protrudes radially outwards; The first limiting boss (4) is used to abut against the second limiting boss (5) to prevent the adjacent protective sleeve (3) from falling off during the sliding process.

6. The screw rod protection device for the punching main machine according to claim 5, characterized in that: The inner side wall of the first limiting boss (4) is clearance-matched with the outer side wall of the protective sleeve (3) adjacent to the inner side; The outer side wall of the second limiting boss (5) is clearance-matched with the inner side wall of the protective sleeve (3) adjacent to the outer side.

7. The screw rod protection device for the punching main machine according to claim 1, characterized in that: The first connecting flange (1) is used to be connected to the mounting seat (200), and the second connecting flange (2) is used to be connected to the adjusting seat (100); The first connecting flange (1) is connected to a first sealing ring (6) for forming a seal between the first connecting flange (1) and the mounting seat (200); The second connecting flange (2) is connected to a second sealing ring (7) for forming a seal between the second connecting flange (2) and the adjusting seat (100).

8. The screw rod protection device for the punching main machine according to claim 7, characterized in that: The first sealing ring (6) is embedded in the end wall of the first connecting flange (1), and the second sealing ring (7) is embedded in the inner wall of the second connecting flange (2).

9. The screw rod protection device for the punching main machine according to claim 1, characterized in that: The protective sleeve (3) is made of metal.

10. The screw rod protection device for the punching main machine according to claim 1, characterized in that: The protective sleeves (3) are stacked in sequence from the inside to the outside in three pieces.

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