Combination device of worm wheel and worm with bevel

Abstract

The application discloses a worm and gear combined device with radial feed of an inner rotating wheel of a wheel spinning, which comprises an intermediate column, the bottom end of the intermediate column is vertically connected to a worm and gear cover, and the worm and gear cover is connected to a bottom plate; the upper end of the intermediate column is connected to an inner rotating wheel frame through a shaft shoulder, the upper end of the inner rotating wheel frame is connected to an inner rotating wheel frame upper pressing block and an inner rotating wheel frame upper pressing block cover plate, and the inner rotating wheel frame upper pressing block cover plate is connected to the top end of the intermediate column; the inner rotating wheel frame is connected to a plurality of inner rotating wheel shafts through guide rails, the inner rotating wheel shafts are connected to inner rotating wheels, a slope is processed on the inner rotating wheel shafts, and a wedge-shaped block is inserted into the gap between the inner rotating wheel frame and the slope in the axial direction, and the wedge-shaped block is installed on a wedge-shaped block frame; the wedge-shaped block frame is threadedly connected to the upper end of a feed screw, the lower end of the feed screw is threadedly connected to a worm, and a screw-nut pair is formed; the feed screw is installed inside the intermediate column, a servo motor and a reducer output shaft installed outside the worm and gear cover are connected to the worm, and the application has the advantages of reducing the radial dimension of the inner rotating wheel frame and simple motor control.

Description

Technical Field

[0001] This invention belongs to the field of spinning technology, specifically relating to a combination device of worm gear and inclined plane for radial feed of inner spinning wheel in spinning. Background Technology

[0002] Spinning with inner wheels is a powerful spinning technique developed from mandrel spinning. It replaces the mandrel with an inner spinning wheel, simultaneously machining the inner and outer surfaces of the cylindrical blank. Spinning with inner wheels uses multiple pairs of inner and outer spinning wheels to process the workpiece's inner and outer surfaces simultaneously. Compared to traditional mandrel spinning, spinning with inner spinning wheels effectively improves process flexibility, saves on spinning die manufacturing and tooling costs, significantly improves the internal stress state of the workpiece, and enhances its surface quality. Spinning equipment can change the position of the inner and outer spinning wheels through radial feed mechanisms, enabling flexible machining of cylindrical parts with different diameters and wall thicknesses.

[0003] Patent application titled "A Large-Scale Cylindrical Active High-Force Flexible Spinning Equipment" (Publication No.: CN116140447A) discloses an inner spinning wheel radial feeding mechanism. The inner spinning wheel radial feeding mechanism uses a motor-driven nut-screw mechanism to push the inner spinning wheel seat to complete the radial feeding of the inner spinning wheel. The disadvantage of the inner spinning wheel radial feeding mechanism is that the nut-screw transmission mechanism is radially arranged, which will greatly increase the radial dimension of the inner spinning wheel frame; and each inner spinning wheel radial feeding mechanism requires a motor drive, and the motor is located at the top of the spinning equipment, which causes the motor operation control to be complicated and the installation to be difficult. Patent applications entitled "A Shaped Double-Roller Spinning Machine" (Publication No.: CN115229017A) and "A Fully Hydraulic Double-Roller Master-Slave Powerful Spinning Device" (Publication No.: CN116441395B) respectively use a helical three-way linkage mechanism and a gear and rack mechanism to achieve radial feeding of the inner spinning wheel, which effectively reduces the number of drive motors. However, since the main transmission mechanism is still radially arranged, it does not effectively solve the problem of excessively large radial dimensions of the inner spinning wheel frame, and cannot meet the processing requirements of small inner diameter cylinders. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the present invention aims to provide a worm gear and inclined plane combination device for radial feed of inner rotating wheels in a rotary spinning process. This device can minimize the radial dimension of the inner rotating wheel frame and uses a single motor at the bottom to drive the radial feed of all inner rotating wheels. It has the advantages of simple motor control system and easy installation, and meets the processing requirements of small inner diameter cylinders.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A combination device for radial feed of inner rotating wheel and worm gear with inclined plane includes a central column 105, the bottom end of which is vertically connected to a worm gear cover 106, which is connected to a base plate 107; an inner rotating wheel frame 109 is connected to the stepped shoulder at the upper end of the central column 105, an upper pressure block 116 is connected to the upper end of the inner rotating wheel frame 109, an upper pressure block cover plate 112 is connected to the upper end of the upper pressure block 116, and the upper pressure block cover plate 112 is connected to the top end of the central column 105;

[0007] The inner rotating wheel frame 109 is connected to multiple inner rotating wheel shafts 103 via guide rails. The inner rotating wheel shafts 103 slide radially within the guide rails of the inner rotating wheel frame 109. The inner rotating wheel shafts 103 are connected to inner rotating wheels 104. Inclined surfaces are machined on the inner rotating wheel shafts 103. Wedge-shaped blocks 110 are inserted axially into the gap between each inclined surface and the inner rotating wheel frame 109. The wedge-shaped blocks 110 are mounted on the wedge-shaped block frame 101.

[0008] The wedge block frame 101 and the upper end of the feed screw 113 are threadedly connected, and the lower end of the feed screw 113 is threadedly connected to the worm gear 117, forming a screw-nut pair. The feed screw 113 is installed in the inner hole of the intermediate column 105. The worm gear 117 and worm 114 transmission mechanism are installed inside the worm gear cover 106. A servo motor and reducer 108 are installed outside the worm gear cover 106. The output shaft of the servo motor and reducer 108 is connected to the worm 114.

[0009] The bottom of the base plate 107 is connected to a lead screw anti-rotation block 115. The bottom of the feed lead screw 113 is provided with a guide surface, and the lead screw anti-rotation block 115 is connected to the bottom guide surface of the feed lead screw 113.

[0010] The wedge block holder 101 is connected to wedge block pads, and the radial feed of the inner rotating wheel 104 can be achieved by adjusting the number of wedge block pads.

[0011] The end of the wedge block holder 101 is connected to a wedge block baffle 111 to prevent the wedge block 110 from sliding out of the wedge block holder 101.

[0012] A spring 102 is connected between the inner rotating wheel shaft 103 and the inner rotating wheel frame 109 to enable the retraction of the inner rotating wheel shaft 103.

[0013] The number of inner rotating wheel shafts 103 is four, and the four inner rotating wheel shafts 103 are evenly distributed around the axis of the inner rotating wheel frame 109.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] (1) Since the main transmission component that drives the inner rotating wheel to feed radially is arranged axially, the axial movement of the main transmission component is converted into the radial feed of the inner rotating wheel, thus greatly reducing the overall radial dimension of the inner rotating wheel frame.

[0016] (2) Since the servo motor and reducer of the present invention are located at the bottom of the device and are driven by a single motor, the problems of complex motor control system and difficult installation are solved. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of an embodiment of the present invention.

[0018] Figure 2 This is a cross-sectional view of an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the anti-rotation block of the lead screw according to an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the internal rotating wheel shaft in an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the internal rotating wheel frame in an embodiment of the present invention.

[0022] Figure 6 This is a schematic diagram of the structure of the intermediate column in an embodiment of the present invention.

[0023] In the diagram: 101-Wedge block frame; 102-Spring; 103-Inner rotating wheel shaft; 104-Inner rotating wheel; 105-Intermediate column; 106-Worm gear cover; 107-Base plate; 108-Servo motor and reducer; 109-Inner rotating wheel frame; 110-Wedge block; 111-Wedge block baffle; 112-Pressure block cover plate on inner rotating wheel frame; 113-Feed screw; 114-Worm; 115-Screw anti-rotation block; 116-Pressure block on inner rotating wheel frame; 117-Worm gear. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0025] Reference Figures 1-6A combination device for radial feed of an inner rotating wheel and a worm gear and inclined plane for rotary spinning includes a central column 105. The bottom end of the central column 105 is vertically connected to a worm gear cover 106, which is connected to a base plate 107. An inner rotating wheel frame 109 is connected to the stepped shoulder at the upper end of the central column 105. An upper pressure block 116 is connected to the upper end of the inner rotating wheel frame 109. An upper pressure block cover plate 112 is connected to the upper end of the upper pressure block 116, and the upper pressure block cover plate 112 is bolted to the top end of the central column 105.

[0026] The inner rotating wheel frame 109 is connected to multiple inner rotating wheel shafts 103 via guide rails. The inner rotating wheel shafts 103 slide radially within the guide rails of the inner rotating wheel frame 109. The inner rotating wheel shafts 103 are connected to inner rotating wheels 104. An inclined surface is machined on the inner rotating wheel shafts 103. A wedge block 110 is inserted axially into the gap between each inclined surface and the inner rotating wheel frame 109. The wedge block 110 is mounted on a wedge block frame 101.

[0027] The threaded hole of the wedge block holder 101 is threadedly connected to the upper end of the feed screw 113, and the lower end of the feed screw 113 is threadedly connected to the threaded hole of the worm gear 117, forming a screw-nut pair; the feed screw 113 is installed in the internal hole of the intermediate column 105, and the worm gear 117 and worm 114 transmission mechanism is installed inside the worm gear cover 106. A servo motor and reducer 108 are installed outside the worm gear cover 106, and the output shaft of the servo motor and reducer 108 is connected to the worm 114.

[0028] The bottom of the base plate 107 is connected to a lead screw anti-rotation block 115. The bottom of the feed lead screw 113 is provided with a guide surface, and the lead screw anti-rotation block 115 is connected to the bottom guide surface of the feed lead screw 113.

[0029] The wedge block holder 101 is connected to wedge block pads, and the radial feed of the inner rotating wheel 104 can be achieved by adjusting the number of wedge block pads.

[0030] The end of the wedge block holder 101 is connected to a wedge block baffle 111 to prevent the wedge block 110 from sliding out of the wedge block holder 101.

[0031] A spring 102 is connected between the inner rotating wheel shaft 103 and the inner rotating wheel frame 109 to enable the retraction of the inner rotating wheel shaft 103.

[0032] The number of inner rotating wheel shafts 103 is four, and the four inner rotating wheel shafts 103 are evenly distributed around the axis of the inner rotating wheel frame 109.

[0033] The working principle of this invention is as follows: When the inner rotating wheel 104 feeds radially along the workpiece, the servo motor and reducer 108 drive the worm 114 to rotate. The rotation of the worm 114 causes the worm wheel 117 to rotate. The worm wheel 117 has a thread inside and forms a screw-nut pair with the feed screw 113. The rotation of the worm wheel 117 drives the feed screw 113 to move axially, which in turn drives the wedge block 110 installed on the upper end of the feed screw 113 to move axially. The inclined surface of the wedge block 110 cooperates with the inclined surface on the inner rotating wheel shaft 103, so that the axial movement of the wedge block 110 is converted into the radial displacement of the inner rotating wheel shaft 103 along the guide rail of the inner rotating wheel frame 109, thereby realizing the radial feed of the inner rotating wheel 104.

[0034] To meet the processing needs of cylinders with different diameters, wedge blocks were designed. Different feed ranges can be achieved by adjusting the number of wedge blocks. In addition, the wedge block 110 realizes the radial outward feed of the inner rotating wheel shaft 103, and the retraction of the inner rotating wheel shaft 103 is achieved by the spring 102 installed on the inner rotating wheel frame 109 and the inner rotating wheel shaft 103.

[0035] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related system fields, are similarly included within the scope of protection of the present invention.

Claims

1. A combination device for radial feed of an internal spinning wheel and a worm gear and inclined plane, comprising a central column (105), characterized in that: The bottom end of the intermediate column (105) is vertically connected to the worm gear cover (106), and the worm gear cover (106) is connected to the base plate (107); an inner rotating wheel frame (109) is connected to the stepped shoulder at the upper end of the intermediate column (105), an upper pressure block (116) is connected to the upper end of the inner rotating wheel frame (109), an upper pressure block cover plate (112) is connected to the upper end of the upper pressure block (116), and the upper pressure block cover plate (112) is connected to the top end of the intermediate column (105); The inner rotating wheel frame (109) is connected to multiple inner rotating wheel shafts (103) via guide rails. The inner rotating wheel shafts (103) slide radially within the guide rails of the inner rotating wheel frame (109). The inner rotating wheel shafts (103) are connected to inner rotating wheels (104). An inclined surface is machined on the inner rotating wheel shafts (103). A wedge block (110) is inserted axially in the gap between each inclined surface and the inner rotating wheel frame (109). The wedge block (110) is mounted on a wedge block frame (101). The wedge block frame (101) and the upper end of the feed screw (113) are threadedly connected, and the lower end of the feed screw (113) is threadedly connected to the worm gear (117) to form a screw and nut pair. The feed screw (113) is installed in the inner hole of the intermediate column (105). The worm gear (117) and worm (114) transmission mechanism are installed in the worm gear cover (106). A servo motor and reducer (108) are installed outside the worm gear cover (106). The output shaft of the servo motor and reducer (108) is connected to the worm (114).

2. The apparatus according to claim 1, characterized in that: The bottom plate (107) is connected to a lead screw anti-rotation block (115) at the bottom. The feed lead screw (113) has a guide surface at the bottom. The lead screw anti-rotation block (115) is connected to the guide surface at the bottom of the feed lead screw (113).

3. The apparatus according to claim 1, characterized in that: The wedge block holder (101) is connected to a wedge block pad, and the radial feed of the inner rotating wheel (104) can be achieved by adjusting the number of wedge block pads.

4. The apparatus according to claim 1, characterized in that: The end of the wedge block holder (101) is connected to a wedge block baffle (111) to prevent the wedge block (110) from sliding out of the wedge block holder (101).

5. The apparatus according to claim 1, characterized in that: A spring (102) is connected between the inner rotating wheel axle (103) and the inner rotating wheel frame (109) to enable the retraction of the inner rotating wheel axle (103).

6. The apparatus according to claim 1, characterized in that: The number of inner rotating wheel shafts (103) is four, and the four inner rotating wheel shafts (103) are evenly distributed around the axis of the inner rotating wheel frame (109).

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