Servo control automatic adjusting mechanism for collet box of cold pilger mill
By working together with the cylinder piston rod of the servo motor drive output part, the position of the chuck box of the cold-rolling pipe mill is automatically adjusted, which solves the problem of low position adjustment efficiency of the chuck box in the prior art, and significantly improves the cold-rolling efficiency and quality.
Patent Information
- Application Number
- CN202420225419.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-01-30
AI Technical Summary
The position adjustment efficiency of the cold rolling pipe mill chuck box in the prior art is low, which affects the quality and efficiency of cold rolling.
The servo motor drive output part works together with the cylinder piston rod to automatically adjust the position of the chuck box to improve adjustment efficiency and stability.
Automatic adjustment of the position of the chuck box is realized, and the cold rolling efficiency and quality are improved, which is far higher than the efficiency of traditional manual adjustment.
Smart Images
Figure CN222519529U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of cold rolling equipment, and more specifically, relates to a servo-controlled automatic adjustment mechanism for a cold rolling tube mill chuck box. Background Art
[0002] The cold rolling tube mill is a kind of equipment widely used in the field of metal processing, mainly used to produce metal tubes of various specifications. In the working process of the cold rolling tube mill, the chuck box is an important component, which is used to fix and guide the mandrel, so as to realize the precise forming of the inner hole of the tube blank; during the long-term use of the mandrel, the end of the mandrel used for tube blank forming will produce wear, affecting the quality of cold rolling. The traditional approach to this problem is to manually adjust the position of the chuck box, so that the chuck box drives the mandrel along the axial movement of the mandrel to compensate for the wear, so that the tube blank can be better cold rolled; but manual adjustment is time-consuming and labor-intensive, and the efficiency is low, which seriously affects the efficiency of cold rolling. Therefore, it is necessary to solve the above technical problems. Summary of the invention
[0003] The purpose of the embodiments of the present application is to provide a servo-controlled automatic adjustment mechanism for a chuck box of a cold rolling mill, so as to solve the technical problem of low efficiency in position adjustment of the chuck box in the prior art.
[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide a servo-controlled automatic adjustment mechanism for the chuck box of a cold rolling mill, comprising:
[0005] A box body, used for moving relative to a bed on which the chuck box is mounted;
[0006] An adjustment assembly, comprising an output member capable of moving in the same direction as the box and used to abut against the box, and also comprising a servo motor drivingly connected to the output member and used to drive the output member to move;
[0007] The oil cylinder has a piston rod which abuts against the box body and can be extended and retracted. The piston rod is parallel to the moving direction of the box body and is distributed on two opposite sides of the box body with the output member.
[0008] Optionally, the adjustment assembly further includes an oblique iron connected to the output member and the piston rod respectively, and the output member and the piston rod are respectively in contact with the box body through the oblique iron.
[0009] Optionally, the inclined iron and one side of the box body for abutting against each other respectively form an inclined plane, and the inclined plane on the inclined iron is inclined downward in a direction away from the center of the box body.
[0010] Optionally, the adjustment assembly further comprises a pressing plate connected to the bed and slidably matched with the lower two side extensions of the box body, and a gap for accommodating the inclined iron is formed between the pressing plate and the bed;
[0011] The inclined iron is accommodated in the interval and is slidably connected to the pressing plate.
[0012] Optionally, the output member is a screw, and the adjustment assembly further comprises a screw sleeve threadedly connected to the outside of the output member, and a worm and a worm wheel drivingly connected between the screw sleeve and the servo motor;
[0013] The worm and the worm wheel form a transmission pair, the worm is connected to the power end of the servo motor, and the worm wheel is sleeved on the screw sleeve and is used to drive the screw sleeve to rotate around its own central axis.
[0014] Optionally, at least two worm wheels are matched with the worm, and the screw sleeve and the screw are arranged corresponding to the worm wheels.
[0015] Optionally, the adjustment assembly further includes a reduction gearbox;
[0016] The worm and the worm wheel are disposed inside the reduction box.
[0017] Optionally, the bed is provided with a bottom guide rail for supporting the bottom of the box and slidably connected to the box.
[0018] Optionally, the bed is further provided with side guide rails slidably connected to the box body.
[0019] Optionally, the side guides are arranged on opposite sides of the box body.
[0020] The beneficial effect of the servo-controlled automatic adjustment mechanism of the cold rolling tube mill chuck box provided by the present application is that: compared with the prior art, the present application can use a servo motor to drive the output member to abut against the box in the same direction as the moving direction of the box and work together with the oil cylinder to adjust the position of the box. The piston rod of the oil cylinder abuts against the box, which can push the box forward on the one hand, that is, the box moves with the output member when it moves away from the box, and on the other hand, it can play a pressing and buffering role, forming a stable support for the box during rolling. According to the above structure provided by the present application, the position of the chuck box can be automatically adjusted by the servo motor and has good adjustment stability, and has an adjustment efficiency far higher than that of the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Figure 1 A schematic cross-sectional view of a servo-controlled automatic adjustment mechanism for a cold rolling mill chuck box provided in an embodiment of the present application;
[0023] Figure 2 A partial cross-sectional view of a servo-controlled automatic adjustment mechanism for a cold rolling mill chuck box provided in an embodiment of the present application;
[0024] Figure 3 This is a cross-sectional structural diagram of the reduction gearbox provided in an embodiment of the present application.
[0025] Among them, the reference numerals in the figure are: 101, box body; 102, bed; 103, output member; 104, servo motor; 105, cylinder; 106, piston rod; 107, inclined iron; 108, pressure plate; 109, screw sleeve; 110, worm; 111, worm wheel; 112, reduction box; 113, bottom guide rail; 114, side guide rail; 115, extension part. DETAILED DESCRIPTION
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0027] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0028] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0030] Please also read Figures 1 to 3 Now, a servo-controlled automatic adjustment mechanism for a cold rolling mill chuck box provided in an embodiment of the present application is described. The servo-controlled automatic adjustment mechanism for a cold rolling mill chuck box includes a box body 101, an adjustment component and a cylinder 105. Among them:
[0031] The box 101 is used to move relative to the bed 102 on which the chuck box is installed. Generally speaking, the moving direction of the chuck box is the axial direction of the mandrel. The adjustment assembly includes an output member 103 that can move in the same direction as the box 101 and is used to abut against the box 101, and also includes a servo motor 104 that is transmission-connected to the output member 103 and is used to drive the output member 103 to move. The oil cylinder 105 has a piston rod 106 that abuts against the box 101 and can be extended and retracted. The piston rod 106 is parallel to the moving direction of the box 101 and is distributed on opposite sides of the box 101 with the output member 103.
[0032] According to the above structure provided in the present embodiment, the adjustment mechanism provided in the present embodiment can utilize the servo motor 104 to drive the output member 103 to abut against the box body 101 in the same direction as the moving direction of the box body 101 and cooperate with the cylinder 105 to adjust the position of the box body 101; specifically, the piston rod of the cylinder 105 can abut against the box body on the one hand and can synchronously push the box body 101 forward when the output member 103 moves in a direction away from the box body 101 by abutting against the box body, that is, when the output member 103 moves away from the box body 101, the box body 101 follows the movement to move the box body forward, thereby driving the core rod installed in the box body forward; on the other hand, it can play a clamping and buffering role, and form a stable support for the box body 101 during rolling work, so that the position of the chuck box can be automatically adjusted by the servo motor 104 and has good adjustment stability, and has an adjustment efficiency far higher than that of the prior art.
[0033] In another embodiment of the present application, please refer to Figures 1 to 3The adjustment assembly also includes an inclined iron 107 connected to the output member 103 and the piston rod 106 respectively, and the output member 103 and the piston rod 106 are respectively in contact with the box body 101 through the inclined iron 107. According to the above structure provided in this embodiment, by setting the inclined iron 107 on the output member 103 and the piston rod 106, the output member 103 and the box body 101 and the piston rod 106 can be kept in stable contact, and the box body 101 has good moving stability during the movement. When moving to the set distance, the output member 103 stops. At this time, the inclined iron 107 decomposes the horizontal thrust generated by the piston rod 106 into a downward pressure, thereby pressing the box body 101 against the bed 102, maintaining the stability of the box body 101, and effectively resisting the impact on the chuck box when the cold rolling mill is working.
[0034] In another embodiment of the present application, please refer to Figures 1 to 3 The inclined iron 107 and the side of the box 101 used for abutment respectively form an inclined plane, and the inclined plane on the inclined iron 107 is inclined downward in a direction away from the center of the box 101. According to the above structure provided in this embodiment, the two inclined irons 107 can be used to adjust the position of the box 101 on the one hand, and can also have the technical effect of making the box 101 lean against the bed 102 on the other hand, so that the box 101 has good movement stability during the movement process.
[0035] In another embodiment of the present application, please refer to Figures 1 to 3 The adjustment assembly further includes a pressing plate 108 connected to the bed 102 and slidably matched with the lower two side extensions 115 of the box body 101. A gap for accommodating the inclined iron 107 is formed between the pressing plate 108 and the bed 102. The inclined iron 107 is accommodated in the gap and slidably connected to the pressing plate 108. According to the above structure provided in this embodiment, the pressing plate 108 has a technical effect of further making the box body 101 lean against the bed 102.
[0036] In another embodiment of the present application, please refer to Figures 1 to 3 , the output member 103 is a screw, and the adjustment assembly also includes a screw sleeve 109 threadedly connected to the outside of the output member 103, and a worm 110 and a worm wheel 111 that are transmission-connected between the screw sleeve 109 and the servo motor 104; the worm 110 and the worm wheel 111 form a transmission pair, the worm 110 is connected to the power end of the servo motor 104, and the worm wheel 111 is sleeved on the screw sleeve 109 and is used to drive the screw sleeve 109 to rotate around its own central axis. According to the above structure provided in this embodiment, the motor can drive the screw sleeve 109 to rotate through the worm 110 and the worm wheel 111 in turn, and the screw threadedly connected to the screw sleeve 109 can move along the axial direction of the screw, thereby achieving the technical effect of adjusting the position of the box body 101, with good stability and self-locking effect.
[0037] In another embodiment of the present application, please refer to Figures 1 to 3 At least two worm wheels 111 are matched with the worm 110, and the screw sleeve 109 and the screw are arranged corresponding to the worm wheels 111. According to the above structure provided in this embodiment, by arranging two sets of worm wheels 111, screw sleeves 109 and screws, the same worm wheel 111 can drive the two screws to move synchronously, thereby further improving the movement stability of the box 101, and further facilitating the improvement of the adjustment effect of the box 101.
[0038] In another embodiment of the present application, please refer to Figures 1 to 3 The adjustment assembly further includes a reduction box 112, and the worm 110 and the worm wheel 111 are arranged inside the reduction box 112. According to the above structure provided in this embodiment, the reduction box 112 can effectively ensure that the transmission connection between the worm wheel 111 and the worm 110 is not disturbed by the external environment, which is conducive to improving the service life of the servo control automatic adjustment mechanism of the cold rolling mill chuck box provided in this embodiment.
[0039] In another embodiment of the present application, please refer to Figures 1 to 3 The bed 102 is provided with a bottom guide rail 113 for supporting the bottom of the box 101 and slidably connected to the box 101. According to the above structure provided in this embodiment, the bottom guide rail 113 can assist the movement of the box 101, so that the movement process of the box 101 is more stable. Further, in another embodiment of the present application, please refer to Figures 1 to 3 The bed 102 is also provided with a side guide rail 114 slidably connected to the box body 101 for limiting the freedom of the box body 101 in the lateral direction, which is conducive to making the movement process of the box body 101 more stable. Figures 1 to 3 The side guide rails 114 are arranged on opposite sides of the box body 101 .
[0040] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A servo-controlled automatic adjustment mechanism for a cold rolling mill chuck box, characterized in that: include: A box body (101) is used to move relative to a bed (102) on which the chuck box is installed; An adjustment component, comprising an output member (103) capable of moving in the same direction as the box (101) and used to abut against the box (101), and also comprising a servo motor (104) drivingly connected to the output member (103) and used to drive the output member (103) to move; The oil cylinder (105) has a piston rod (106) that abuts against the box body (101) and is capable of extension and contraction. The piston rod (106) is parallel to the moving direction of the box body (101) and is distributed on two opposite sides of the box body (101) with the output member (103).
2. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 1, characterized in that: The adjustment assembly further comprises an inclined iron (107) respectively connected to the output member (103) and the piston rod (106); the output member (103) and the piston rod (106) are respectively in contact with the box body (101) via the inclined iron (107).
3. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 2, characterized in that: The inclined iron (107) and the side of the box body (101) used for abutting against each other respectively form an inclined plane, and the inclined plane on the inclined iron (107) is inclined downward in a direction away from the center of the box body (101).
4. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 3, characterized in that: The adjustment assembly further comprises a pressing plate (108) connected to the bed (102) and slidably matched with the lower two side extensions (115) of the box body (101), wherein a gap for accommodating the inclined iron (107) is formed between the pressing plate (108) and the bed (102); The inclined iron (107) is accommodated in the interval and is slidably connected to the pressing plate (108).
5. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 1, characterized in that: The output member (103) is a screw, and the adjustment assembly further comprises a screw sleeve (109) threadedly connected to the outside of the output member (103), and a worm (110) and a worm wheel (111) drivingly connected between the screw sleeve (109) and the servo motor (104); The worm (110) and the worm wheel (111) form a transmission pair, the worm (110) is connected to the power end of the servo motor (104), and the worm wheel (111) is sleeved on the screw sleeve (109) and is used to drive the screw sleeve (109) to rotate around its own central axis.
6. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 5, characterized in that: At least two worm wheels (111) are matched and connected to the worm (110), and the screw sleeve (109) and the screw are arranged corresponding to the worm wheels (111).
7. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 5, characterized in that: The adjustment assembly also includes a reduction gearbox (112); The worm (110) and the worm wheel (111) are arranged inside the reduction box (112).
8. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 1, characterized in that: The bed (102) is provided with a bottom guide rail (113) for supporting the bottom of the box (101) and slidably connected to the box (101).
9. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 8, characterized in that: The bed (102) is also provided with a side guide rail (114) which is slidably connected to the box (101).
10. The servo-controlled automatic adjustment mechanism for the cold rolling mill chuck box according to claim 9, characterized in that: The side guide rails (114) are arranged on two opposite sides of the box body (101).