Replaceable rear clamping structure
Through the design of a replaceable rear clamping structure, combined with hydraulic control and manual operation, the problem of unstable clamping of small core rods by the cold rolling mill is solved, stable clamping of core rods of different sizes is achieved, and production stability is improved.
Patent Information
- Application Number
- CN202422853632.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Conventional rear clamps of cold rolling mills are unable to stably clamp smaller and thinner core rods, resulting in unstable rolled products and defective products.
It adopts a replaceable rear clamping structure, combined with hydraulic control and manual operation, and uses a self-centering three-jaw chuck and clamping components to achieve stable clamping of core rods of different sizes.
It achieves stable clamping of core rods below 5mm, ensuring the stability and efficient production of rolled products.
Smart Images
Figure CN223430712U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cold rolling tube machine technical field, concretely is a replaceable rear clamping structure. BACKGROUND
[0002] Cold rolling tube machine is the process equipment that utilizes ring hole shape to carry out cold rolling to rough pipe, and this machine has good cogging performance, and can also roll non - seamless pipe of non - ferrous metal of ordinary precision, and the biggest feature of cold rolling tube machine is that material utilization rate is high, and precision and surface roughness are all superior to cold drawn tube, when using cold rolling tube machine, need to use rear clamping to hold positioning to core rod.
[0003] At present, the conventional rear clamping of cold rolling tube machine is difficult to clamp smaller and thinner core rod when in use, and may cause core rod to move when clamping, causing the instability of rolled product pipe, and causing the problem of defective product.
[0004] Therefore, in view of the above, the existing structure and defects are improved, and a replaceable rear clamping structure is provided. INVENTION CONTENTS
[0005] The utility model discloses a replaceable rear clamping structure to solve the problem in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a replaceable rear clamping structure, including machine body and replacement assembly, the inside of machine body is provided with hollow shaft, and one end of hollow shaft is connected with replacement assembly, the replacement assembly includes fixed flange, bolt, nut, connecting flange, positioning sleeve, self-centering three-jaw chuck and mounting hole, one end of hollow shaft is arranged with fixed flange, and the outer end inside fixed flange is arranged with bolt, the end of bolt is sleeved with nut, the outer side of bolt middle part is provided with connecting flange, and one side middle part of connecting flange is fixed with positioning sleeve, one side of fixed flange is also installed with self-centering three-jaw chuck, and one side of self-centering three-jaw chuck is provided with mounting hole, and the replaceable structure is formed between self-centering three-jaw chuck and fixed flange through bolt and mounting hole.
[0007] Further, the top of the machine body is provided with a clamping assembly, the clamping assembly includes a fixed seat and a hydraulic cylinder, the top of the machine body is provided with a fixed seat, and the inside of the fixed seat is rotatably connected with a hydraulic cylinder.
[0008] Further, the clamping assembly further includes a rotating plate and a support plate, one end of the hydraulic cylinder is rotatably connected with the rotating plate, the middle part of the rotating plate is rotatably connected with the support plate, and the support plate is fixedly connected with the fixed seat.
[0009] Further, the clamping assembly further comprises a connecting rod and an adjusting sleeve, the bottom of the rotating plate is rotationally connected with the connecting rod, and the end of the connecting rod is rotationally connected with the adjusting sleeve.
[0010] Further, the clamping assembly further comprises a guide sleeve and a guide groove, the inside of the adjusting sleeve is rotationally connected with the guide sleeve, and the inside of the guide sleeve is provided with the guide groove.
[0011] Further, the guide groove is T-shaped, and the clamping plate is slidably connected with the guide sleeve through the guide groove.
[0012] Further, the clamping assembly further comprises a sliding plate and a clamping plate, the middle of the guide groove is slidably connected with the sliding plate, and one side of the sliding plate is fixedly connected with the clamping plate.
[0013] Further, the clamping plate is slidably connected with the positioning sleeve, and the clamping plate is equidistantly and circumferentially distributed relative to the inside of the guide sleeve.
[0014] The utility model provides a replaceable rear card structure, has the following beneficial effects:
[0015] 1, the utility model discloses a set of through the replacement of the setting, since the fixed flange is installed in the end of the hollow shaft, therefore when clamping the small core rod, can unscrew the nut, and the connecting flange is detached from the fixed flange, and then through the mounting hole and bolt, the self-centering three-jaw chuck is installed on the fixed flange, and the small core rod can be fixed by manually operating the self-centering three-jaw chuck, so that the normal clamping of the core rod below 5mm is ensured.
[0016] 2, the utility model discloses a set of through the setting of the clamping assembly, when clamping the conventional type core rod, starts the hydraulic cylinder, makes it drive rotating plate to rotate along the end of the support plate, can drive the adjusting sleeve to move along the axial movement of the positioning sleeve through the connecting rod, so that the guide sleeve slides on the outside of the positioning sleeve, and since the positioning sleeve can limit the moving direction of the clamping plate, it can only move vertically, so under the guidance of the guide groove and the sliding plate, the clamping plate can be controlled to clamp and loosen, so that the combination of hydraulic control and manual control can realize the purpose of full automation and manual clamping of small and thin core rods. ACCURATE DRAWINGS
[0017] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model discloses a replaceable rear card structure;
[0018] Figure 2 It is the guide sleeve section structure schematic diagram of the utility model discloses a replaceable rear card structure;
[0019] Figure 3 It is the three-dimensional structure schematic diagram of the utility model discloses a replaceable rear card structure of self-centering three-jaw chuck.
[0020] In the figure: 1, body; 2, hollow shaft; 3, replacement assembly; 301, fixed flange; 302, bolt; 303, nut; 304, connecting flange; 305, positioning sleeve; 306, self-centering three-jaw chuck; 307, mounting hole; 4, clamping assembly; 401, fixed seat; 402, hydraulic cylinder; 403, rotating plate; 404, support plate; 405, connecting rod; 406, adjusting sleeve; 407, guide sleeve; 408, guide groove; 409, sliding plate; 410, clamping plate. DETAILED DESCRIPTION
[0021] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.
[0022] As Figures 1 to 3 shown, a replaceable rear clamping structure includes a body 1 and a replacement assembly 3, the inside of the body 1 is provided with a hollow shaft 2, and one end of the hollow shaft 2 is connected with the replacement assembly 3, the replacement assembly 3 includes a fixed flange 301, a bolt 302, a nut 303, a connecting flange 304, a positioning sleeve 305, a self-centering three-jaw chuck 306 and a mounting hole 307, the fixed flange 301 is arranged at one end of the hollow shaft 2, the outer end of the fixed flange 301 is internally arranged with the bolt 302, the end of the bolt 302 is sleeved with the nut 303, the connecting flange 304 is arranged on the outer side of the middle part of the bolt 302, and the connecting flange 304 is fixedly provided with the positioning sleeve 305 on one side of the middle part, the connecting flange 304 can be installed on the fixed flange 301 by means of the bolt 302 and the nut 303, the self-centering three-jaw chuck 306 is further installed on one side of the fixed flange 301, and the mounting hole 307 is formed between the self-centering three-jaw chuck 306 and the fixed flange 301 through the bolt 302, so as to constitute a replaceable structure, when clamping a small core rod, the self-centering three-jaw chuck 306 is installed on the fixed flange 301 through the mounting hole 307 and the bolt 302, so that the self-centering three-jaw chuck 306 can be manually operated to fix the small core rod, and normal clamping of the core rod below 5mm is ensured.
[0023] As Figure 1 and Figure 2As shown, the top of the body 1 is provided with a clamping assembly 4, which comprises a fixed seat 401 and a hydraulic cylinder 402, the top of the body 1 is provided with the fixed seat 401, and the inside of the fixed seat 401 is rotatably connected with the hydraulic cylinder 402, the clamping assembly 4 further comprises a rotating plate 403 and a supporting plate 404, one end of the hydraulic cylinder 402 is rotatably connected with the rotating plate 403, the middle of the rotating plate 403 is rotatably connected with the supporting plate 404, and the supporting plate 404 is fixedly connected with the fixed seat 401, when the hydraulic cylinder 402 pushes the rotating plate 403, the rotating plate 403 can rotate along the end of the supporting plate 404, the clamping assembly 4 further comprises a connecting rod 405 and an adjusting sleeve 406, the bottom of the rotating plate 403 is rotatably connected with the connecting rod 405, and the end of the connecting rod 405 is rotatably connected with the adjusting sleeve 406, the rotating plate 403 can drive the adjusting sleeve 406 to move along the axial direction of the positioning sleeve 305 through the connecting rod 405, the clamping assembly 4 further comprises a guide sleeve 407 and a guide groove 408, the inside of the adjusting sleeve 406 is rotatably connected with the guide sleeve 407, and the inside of the guide sleeve 407 is provided with the guide groove 408, the guide groove 408 is T-shaped, and the clamping plate 410 is slidably connected with the guide sleeve 407 through the guide groove 408, the guide sleeve 407 can limit and guide the clamping plate 410 through the guide groove 408, the clamping assembly 4 further comprises a sliding plate 409 and a clamping plate 410, the middle of the guide groove 408 is slidably connected with the sliding plate 409, and one side of the sliding plate 409 is fixedly connected with the clamping plate 410, the clamping plate 410 is slidably connected with the positioning sleeve 305, and the clamping plate 410 is equidistantly circumferentially distributed in the inside of the guide sleeve 407, since the positioning sleeve 305 can limit the moving direction of the clamping plate 410, so that the clamping plate 410 can only move vertically, therefore, under the guidance of the guide groove 408 and the sliding plate 409, the clamping plate 410 can be controlled to clamp and release.
[0024] In summary, the replaceable rear card structure is used, first of all, according to Figure 1 、 Figure 2 and Figure 3304 is mounted on the fixed flange 301 using bolts 302 and nuts 303. Then, the hydraulic cylinder 402 is started to drive the rotating plate 403 to rotate along the end of the support plate 404. The adjusting sleeve 406 can be driven by the connecting rod 405 to move along the axial direction of the positioning sleeve 305, so that the guide sleeve 407 slides outside the positioning sleeve 305. At the same time, since the positioning sleeve 305 will limit the moving direction of the clamping plate 410, the guide groove 408 and the guide plate 409 are fixed. The clamping plates 410 can be controlled downward to clamp the core rod. Then, when loosening the workpiece, all the clamping plates 410 can be loosened by simply contracting the hydraulic cylinder 402, making the operation very convenient. Finally, when it is necessary to clamp a small core rod, first loosen the nut 303, remove the connecting flange 304 from the fixed flange 301, and then install the self-centering three-jaw chuck 306 on the fixed flange 301 through the mounting hole 307 and the bolt 302. The self-centering three-jaw chuck 306 can be manually operated to fix the small core rod.
[0025] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.
Claims
1. A replaceable rear card structure, comprising a body (1) and a replacement assembly (3), characterized in that: A hollow shaft (2) is provided inside the machine body (1), and one end of the hollow shaft (2) is connected to a replacement assembly (3), the replacement assembly (3) comprising a fixing flange (301), a bolt (302), a nut (303), a connecting flange (304), a positioning sleeve (305), a self-centering three-jaw chuck (306) and a mounting hole (307), one end of the hollow shaft (2) is provided with a fixing flange (301), and a bolt (302) is provided inside the outer end of the fixing flange (301), the bolt (302) The end of the bolt (302) is sleeved with a nut (303), a connecting flange (304) is provided on the outer side of the middle of the bolt (302), and a positioning sleeve (305) is fixed in the middle of one side of the connecting flange (304), a self-centering three-jaw chuck (306) is also installed on one side of the fixed flange (301), and a mounting hole (307) is opened on one side of the self-centering three-jaw chuck (306), and the self-centering three-jaw chuck (306) forms a replaceable structure with the fixed flange (301) through the bolt (302) and the mounting hole (307).
2. The replaceable rear card structure according to claim 1, characterized in that: A clamping assembly (4) is provided on the top of the machine body (1), and the clamping assembly (4) comprises a fixing seat (401) and a hydraulic cylinder (402). The fixing seat (401) is placed on the top of the machine body (1), and the interior of the fixing seat (401) is rotatably connected to the hydraulic cylinder (402).
3. The replaceable rear card structure according to claim 2, characterized in that: The clamping assembly (4) further comprises a rotating plate (403) and a supporting plate (404); one end of the hydraulic cylinder (402) is rotatably connected to the rotating plate (403); the middle portion of the rotating plate (403) is rotatably connected to the supporting plate (404); and the supporting plate (404) is fixedly connected to the fixing seat (401).
4. The replaceable rear card structure according to claim 3, characterized in that: The clamping assembly (4) further comprises a connecting rod (405) and an adjusting sleeve (406); the bottom of the rotating plate (403) is rotatably connected to the connecting rod (405), and the end of the connecting rod (405) is rotatably connected to the adjusting sleeve (406).
5. The replaceable rear card structure according to claim 4, characterized in that: The clamping assembly (4) further comprises a guide sleeve (407) and a guide groove (408); the guide sleeve (407) is rotatably connected to the interior of the adjustment sleeve (406), and the guide groove (408) is provided inside the guide sleeve (407).
6. The replaceable rear card structure according to claim 5, characterized in that: The guide groove (408) is T-shaped, and the clamping plate (410) is slidably connected to the guide sleeve (407) through the guide groove (408).
7. The replaceable rear card structure according to claim 5, characterized in that: The clamping assembly (4) further comprises a slide plate (409) and a clamp plate (410); the middle portion of the guide groove (408) is slidably connected to the slide plate (409), and the clamp plate (410) is fixed to one side of the slide plate (409).
8. The replaceable rear card structure according to claim 7, characterized in that: The clamping plates (410) are slidably connected to the positioning sleeve (305), and the clamping plates (410) are equidistantly distributed around the inner circumference of the guide sleeve (407).