A spinning device with adjustable gap of pressing ring

Abstract

The utility model belongs to the technical field of spinning processing, and particularly relates to a spinning device with adjustable gap of a pressure ring, comprising a support leg, a spinning structure is arranged on the left side of the top of the support leg, a molding structure is arranged on the right side of the spinning structure, a limiting structure is arranged on the right side of the molding structure, the spinning structure comprises an installation unit and an adjustment unit, the adjustment unit comprises a push rod, a slide cylinder is connected to the middle of the outer surface of the push rod, a positioning plate is connected to the outer surface of the slide cylinder, a mounting groove is provided at the right end of the push rod, a spring is installed inside the mounting groove, a limiting block is connected inside the mounting groove on the right side of the push rod, and a pressure plate is installed at the right end of the limiting block. The spinning device with adjustable gap of the pressure ring utilizes an electric push rod to drive the connecting plate and the push rod to move to the right side, utilizes the push rod to drive the pressure plate to push the left end of the blank, and utilizes the extrusion of the spring during the molding process to effectively adjust the spacing of the pressure plates.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning processing, in particular to a spinning device with an adjustable gap of a pressing ring. Background Art

[0002] Forward spinning of cylindrical parts is a continuous local plastic forming method used to form high-precision thin-walled cylindrical parts. It has the characteristics of small spinning force, high production efficiency and low labor intensity.

[0003] In the prior art, in addition to reserving a certain processing allowance at the tail end of the blank and cutting it off by machining after spinning as described above, there is also a method for processing the bell mouth produced at the tail end of the cylindrical part during the final stage of forward spinning. After the spinning is completed, a multi-pass shrinking spinning process is added to shrink and eliminate the bell mouth at the tail end of the workpiece. However, this multi-pass shrinking process will greatly extend the production cycle and reduce work efficiency. In addition, when shrinking the bell mouth at the tail end of the workpiece, the tail end material is very likely to become unstable, and in severe cases, wrinkles or cracks will occur.

[0004] For example, a spinning device disclosed in Chinese patent CN202591340U rotates around the spinner core shaft together with the rotating body, the bearing positioning sleeve and the outer ring of the roller bearing under the drive of the blank. The inner ring of the roller bearing is fixed to the third-level shaft of the spinner core shaft through a shoulder and a fixing nut. The spinner core shaft does not rotate, and its first-level shaft is connected to the feeding mechanism of the spinner seat, which can drive the entire device to feed along a straight line in the axial direction. The pressing ring shaft does not rotate, but the internal threaded hole opened radially on its first-level shaft, the internal threaded hole and the screw rod form a pair of spiral pairs, which can make the pressing ring shaft slide freely in the slide groove opened on the fifth-level shaft of the spinner core shaft. The end of the screw rod is fixed by a thrust ball bearing and a handle is installed on it. By turning the handle, the pressing ring shaft can be accurately positioned at any position in the slide groove, thereby achieving the effect of ensuring the initial gap between the pressing ring and the blank surface under different thinning amounts. The pressing ring can block the expansion of the blank section in front of the spinner, thereby preventing the formation of a bell mouth. Driven by the blank, the pressing ring rotates around the pressing ring shaft together with the fixing sleeve, the bearing end cover and the outer ring of the angular contact bearing. The inner ring of the angular contact bearing is fixed on the pressing ring shaft through a sleeve, a shaft shoulder and a fixing nut.

[0005] However, in the prior art, when the cylindrical part is spin-formed, the diameter of the cylindrical part is usually changed, so an adjustable spinning structure is required to prevent the occurrence of the bell-mouth phenomenon.

[0006] For this reason, we urgently need to provide a kind of spinning device with adjustable gap of pressing ring. Utility Model Content

[0007] The purpose of the utility model is to provide a spinning device with an adjustable gap of a pressure ring, so as to solve the problem that in the prior art proposed in the above-mentioned background technology, when the cylindrical part is spin-formed, the diameter size of the cylindrical part is usually changed, so an adjustable spinning structure is needed to prevent the occurrence of the bell-mouth phenomenon.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spinning device with adjustable gap of a pressure ring, comprising a support leg, a spinning structure is arranged on the left side of the top of the support leg, a molding structure is arranged on the right side of the spinning structure, and a limiting structure is arranged on the right side of the molding structure.

[0009] The spinning structure includes a mounting unit and an adjusting unit.

[0010] The adjusting unit includes a pushing rod, a sliding cylinder is connected to the middle of the outer surface of the pushing rod, a positioning plate is connected to the outer surface of the sliding cylinder, an installation groove is opened at the right end of the pushing rod and a spring is installed inside, an installation groove is opened on the right side of the pushing rod and a limiting block is connected inside, and a pressure plate is installed at the right end of the limiting block.

[0011] Preferably, the mounting unit comprises a workbench, a mounting plate is mounted on the left middle end of the top surface of the workbench, an electric push rod 1 is mounted on the middle right side of the mounting plate near the top, and a connecting plate is connected to the output end of the electric push rod 1.

[0012] Preferably, the middle of the connecting plate away from the electric push rod is fixedly connected to the left end of the push rod, the two limit blocks are fixedly connected to the spring on the side close to each other, the bottom surface of the positioning plate is fixedly connected to the top surface of the workbench, and the outer surface of the limit block is slidably connected to the inner wall of the installation groove on the right side of the push rod. The pressure plate is two arc-shaped plates, and the arc centers of the two arc-shaped plates are on the same axis as the forming cylinder.

[0013] Preferably, the molding structure includes an asynchronous motor, the output end of the asynchronous motor is connected to a linkage member, the top of the linkage member is connected to a molding cylinder, the middle of the outer surface of the molding cylinder is connected to a bearing, and the outer surface of the bearing is connected to a fixing plate.

[0014] Preferably, the bottom surface of the asynchronous motor is detachably connected to the top surface of the workbench, the bearing is installed inside a circular hole opened in the middle of the right side of the fixed plate near the top, and the bottom surface of the fixed plate is fixedly connected to the middle of the top surface of the workbench. The linkage parts are a driving shaft, a driving wheel, a belt, and a driven wheel. The inside of the driven wheel is fixedly connected to the outer surface of the forming cylinder.

[0015] Preferably, the limiting structure includes a mounting frame, a second electric push rod is installed on the top of the mounting frame, the output end of the second electric push rod is connected to a linkage plate, a limiting rod is installed in the middle of the left side of the linkage plate, the outer surface of the limiting rod is slidably connected to the limiting cylinder, and the outer surface of the limiting cylinder is fixedly connected to a support plate.

[0016] Preferably, the bottom of the mounting frame is fixedly connected to the middle of the right side of the workbench, the bottom end of the support plate is fixedly connected to the middle of the top surface of the workbench near the right end, and the outer surface of the limit cylinder is fixedly connected to the inner wall of the through hole opened in the middle of the right side of the support plate near the top. The left end of the limit rod is provided with an end surface perpendicular to the axis of the limit plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The spinning device with adjustable gap of the pressing ring, through the setting of the spinning structure, uses an electric push rod to drive the connecting plate and the push rod to move to the right, and uses the push rod to drive the pressing plate to push the left end of the blank. During the forming process, the spring is squeezed to effectively adjust the spacing of the pressing plates.

[0019] 2. The pressure ring has an adjustable gap spinning device. By setting a limit structure, the second electric push rod is started to drive the linkage plate and the limit rod to move to the right, so that the end surface opened at the left end can provide a certain resistance to the right end of the blank forming process without affecting the blank forming process, thereby preventing the excess material on the right end from protruding during the blank forming process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the appearance of the utility model;

[0021] Figure 2 This is an enlarged view of the spinning structure of the utility model;

[0022] Figure 3 It is an enlarged view of the internal structure of the spinning structure of the utility model;

[0023] Figure 4 It is an enlarged view of the rotational molding structure of the utility model;

[0024] Figure 5 It is an enlarged view of the limiting structure of the utility model.

[0025] In the figure: 1, support leg; 101, workbench; 102, mounting plate; 103, electric push rod 1; 104, connecting plate; 105, push rod; 106, slide cylinder; 107, positioning plate; 108, spring; 109, limit block; 110, pressure plate; 201, asynchronous motor; 202, linkage member; 203, forming cylinder; 204, bearing; 205, fixing plate; 301, mounting frame; 302, electric push rod 2; 303, linkage plate; 304, limit rod; 305, limit cylinder; 306, support plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1-Figure 5 , the utility model provides a technical solution: Embodiment 1:

[0028] A spinning device with adjustable gap of a pressing ring comprises a supporting leg 1, a spinning structure is arranged on the left side of the top of the supporting leg 1, a forming structure is arranged on the right side of the spinning structure, and a limiting structure is arranged on the right side of the forming structure.

[0029] The spinning structure includes an installation unit and an adjustment unit. The adjustment unit includes a push rod 105. A slide cylinder 106 is connected to the middle of the outer surface of the push rod 105. A positioning plate 107 is connected to the outer surface of the slide cylinder 106. A mounting groove is provided at the right end of the push rod 105 and a spring 108 is installed inside. A mounting groove is provided on the right side of the push rod 105 and a limit block 109 is connected inside. A pressure plate 110 is installed at the right end of the limit block 109. The installation unit includes a workbench 101. A mounting plate 102 is installed at the left end of the middle of the top surface of the workbench 101. An electric push rod 103 is installed near the top in the middle of the right side of the mounting plate 102. A connecting plate 104 is connected to the output end of the electric push rod 103.

[0030] The connecting plate 104 is fixedly connected to the left end of the push rod 105 at the middle of one side away from the electric push rod 103, and the two limit blocks 109 are fixedly connected to the spring 108 on one side close to each other. The bottom surface of the positioning plate 107 is fixedly connected to the top surface of the workbench 101, and the outer surface of the limit block 109 is slidably connected to the inner wall of the installation groove opened on the right side of the push rod 105.

[0031] The forming structure includes an asynchronous motor 201, the output end of the asynchronous motor 201 is connected to a linkage member 202, the top of the linkage member 202 is connected to a forming cylinder 203, the middle of the outer surface of the forming cylinder 203 is connected to a bearing 204, and the outer surface of the bearing 204 is connected to a fixing plate 205. The bottom surface of the asynchronous motor 201 is detachably connected to the top surface of the workbench 101, the bearing 204 is installed in the middle of the right side of the fixing plate 205 near the top of the circular hole, and the bottom surface of the fixing plate 205 is fixedly connected to the middle of the top surface of the workbench 101.

[0032] By setting up the spinning structure, the electric push rod 103 is used to drive the connecting plate 104 and the push rod 105 to move to the right, and the push rod 105 is used to drive the pressing plate 110 to push the left end of the blank. During the forming process, the spring 108 is squeezed to effectively adjust the spacing of the pressing plate 110.

[0033] The blank is placed into the molding cylinder 203, and then the electric push rod 103 is started to drive the connecting plate 104 and the pushing rod 105 to move to the right side, and the asynchronous motor 201 is started to drive the linkage part 202 to work in linkage, and the output end of the asynchronous motor 201 drives the driving shaft and the driving wheel to rotate, and the belt transmission connection between the driving wheel and the driven wheel and the belt is used to drive the driven wheel and the molding cylinder 203 to rotate. At this time, the electric push rod 103 is used to drive the pressing plate 110 to apply pressure to the left end of the blank, so that the blank enters the molding cylinder 203 for molding. When the inner diameter of the blank changes during the molding process, the arc surface inside the molding cylinder 203 squeezes the pressing plate 110, so that the limit block 109 slides inside the slide groove opened in the pushing rod 105, thereby squeezing the spring 108 and causing the spring 108 to deform, thereby effectively adjusting the spacing of the pressing plate 110, so as to facilitate continuous pressure on the left end of the blank to prevent the protrusion of the residual material. Embodiment 2:

[0034] On the basis of the first embodiment, the limiting structure includes a mounting frame 301, a second electric push rod 302 is mounted on the top of the mounting frame 301, a linkage plate 303 is connected to the output end of the second electric push rod 302, a limiting rod 304 is mounted in the middle of the left side of the linkage plate 303, a limiting cylinder 305 is slidably connected to the outer surface of the limiting rod 304, and a support plate 306 is fixedly connected to the outer surface of the limiting cylinder 305. The bottom of the mounting frame 301 is fixedly connected to the middle of the right side of the workbench 101, the bottom end of the support plate 306 is fixedly connected to the middle of the top surface of the workbench 101 near the right end, and the outer surface of the limiting cylinder 305 is fixedly connected to the inner wall of the through hole opened in the middle of the right side of the support plate 306 near the top.

[0035] By setting the limiting structure, the second electric push rod 302 is started to drive the linkage plate 303 and the limiting rod 304 to move to the right side, so that the end surface opened at the left end can provide a certain resistance to the right end of the blank forming process without affecting the blank forming process, thereby preventing the excess material at the right end from protruding during the blank forming process.

[0036] During the forming process of the blank, as the blank moves to the right side after being formed, the electric push rod 2 302 is started to drive the linkage plate 303 and the limit rod 304 to gradually move to the right side, and the end face opened at the left end of the limit rod 304 is connected to the right end of the blank, so that a certain limit force can be continuously provided to the right end of the blank, thereby effectively preventing the right end of the blank from deforming and bulging.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A spinning device with adjustable gap of a pressing ring, comprising a supporting leg (1), characterized in that: The support leg (1) is provided with a spinning structure on the left side of the top, a forming structure is provided on the right side of the spinning structure, and a limiting structure is provided on the right side of the forming structure; The spinning structure includes a mounting unit and an adjusting unit; The adjustment unit comprises a push rod (105), a slide cylinder (106) is connected to the middle of the outer surface of the push rod (105), a positioning plate (107) is connected to the outer surface of the slide cylinder (106), a mounting groove is provided at the right end of the push rod (105) and a spring (108) is installed inside the groove, a limiting block (109) is connected to the inside of the mounting groove on the right side of the push rod (105), and a pressure plate (110) is installed at the right end of the limiting block (109).

2. A spinning device with adjustable gap of a pressing ring according to claim 1, characterized in that: The mounting unit comprises a workbench (101), a mounting plate (102) being mounted on the left middle end of the top surface of the workbench (101), an electric push rod 1 (103) being mounted on the middle right side of the mounting plate (102) near the top end, and a connecting plate (104) being connected to the output end of the electric push rod 1 (103).

3. The spinning device with adjustable gap of the pressing ring according to claim 2, characterized in that: The connecting plate (104) is fixedly connected to the left end of the push rod (105) at the middle of one side away from the electric push rod (103), the two limit blocks (109) are fixedly connected to the spring (108) on one side close to each other, the bottom surface of the positioning plate (107) is fixedly connected to the top surface of the workbench (101), and the outer surface of the limit block (109) is slidably connected to the inner wall of the installation groove provided on the right side of the push rod (105).

4. The spinning device with adjustable gap of the pressing ring according to claim 1, characterized in that: The molding structure comprises an asynchronous motor (201), the output end of the asynchronous motor (201) is connected to a linkage member (202), the top of the linkage member (202) is connected to a molding cylinder (203), the middle of the outer surface of the molding cylinder (203) is connected to a bearing (204), and the outer surface of the bearing (204) is connected to a fixing plate (205).

5. A spinning device with adjustable gap of a pressing ring according to claim 4, characterized in that: The bottom surface of the asynchronous motor (201) is detachably connected to the top surface of the workbench (101); the bearing (204) is installed inside a circular hole opened in the middle of the right side of the fixing plate (205) close to the top; the bottom surface of the fixing plate (205) is fixedly connected to the middle of the top surface of the workbench (101).

6. The spinning device with adjustable gap of the pressing ring according to claim 1, characterized in that: The limiting structure comprises a mounting frame (301), a second electric push rod (302) is mounted on the top of the mounting frame (301), an output end of the second electric push rod (302) is connected to a linkage plate (303), a limiting rod (304) is mounted on the middle of the left side of the linkage plate (303), an outer surface of the limiting rod (304) is slidably connected to a limiting cylinder (305), and an outer surface of the limiting cylinder (305) is fixedly connected to a support plate (306).

7. A spinning device with adjustable gap of a pressing ring according to claim 6, characterized in that: The bottom of the mounting frame (301) is fixedly connected to the middle of the right side of the workbench (101), the bottom end of the support plate (306) is fixedly connected to the middle of the top surface of the workbench (101) near the right end, and the outer surface of the limiting cylinder (305) is fixedly connected to the inner wall of the through hole provided in the middle of the right side of the support plate (306) near the top.

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