Auxiliary feeding device for nut cold header

Abstract

The utility model belongs to the technical field of nut production, and discloses an auxiliary feeding device for a nut cold header, which comprises two fixing plates which are symmetrically distributed, a guide structure is arranged in the middle of each fixing plate, an adjusting structure is arranged above each guide structure, and a feeding mechanism is arranged above each adjusting structure. Two rotating wheels distributed at equal intervals, a guide wheel located above the rotating wheels and a servo motor installed on the back face of the fixing plate located on the rear portion are arranged in the middle of the guide structure, through the design of the adjusting structure, a rotating disc is rotated to drive a worm to rotate, and due to the fact that the worm and two worm wheels are in a mutually-meshed state, the worm is driven to rotate by the servo motor. Rotation of the worm can drive the two worm wheels to rotate synchronously, rotation motion of the worm wheels is transmitted to the threaded sleeve through coaxial connection, so that the threaded sleeve does circumferential rotation around the axis of the threaded sleeve, and according to the spiral transmission principle, circumferential rotation of the threaded sleeve can be converted into linear motion of the lead screw in the axial direction. Therefore, the slide block fixedly connected with the slide rail is driven to stably move along the slide rail.

Description

Technical Field

[0001] This utility model relates to the field of nut production technology, and in particular to an auxiliary feeding device for a nut cold heading machine. Background Technology

[0002] Cold heading machines, as important metal forming equipment, are mainly used in the manufacture of various parts such as bolts, nuts, nails, rivets, and steel balls. They are applicable to a wide range of forging materials, including copper, aluminum, carbon steel, alloy steel, stainless steel, and titanium alloys. In terms of material utilization efficiency, cold heading technology has significant advantages, achieving a material utilization rate of 80% to 90%. Cold heading machines feature continuous, multi-station, and highly automated production characteristics. They can systematically complete a series of complex processes according to a predetermined sequence, such as cutting, heading, accumulation, forming, chamfering, thread rolling, diameter reduction, and edge trimming. Under current technology, cold heading machines typically use the rolling of drive rollers to feed and assist in the feeding of the blank. Specifically, driven by a power source such as a motor, the drive rollers, through friction with the surface of the blank, propel the blank into each station of the cold heading machine at a set speed and path to complete the corresponding processing steps.

[0003] In the process of developing this invention, the inventors discovered at least the following problems in the prior art: Faced with frequent changes in blanks of different sizes and shapes, existing devices lack rapid and flexible adjustment methods, and cannot provide a stable placement space and precise guidance for the blanks during transport. The blanks are prone to shifting or rolling during transport, which not only increases the probability of loading failure but also makes it difficult to ensure the correct posture of the blanks during cold heading, thereby reducing product quality and production efficiency.

[0004] Therefore, the aforementioned technical problems need to be solved. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model proposes: an auxiliary feeding device for a nut cold heading machine, comprising two fixed plates that are symmetrically distributed, a guide structure being provided in the middle of the fixed plates, and an adjustment structure being provided above the guide structure;

[0006] The guide structure has two equally spaced rotating wheels and a guide wheel above the rotating wheels in the middle, as well as a servo motor mounted on the back of the fixed plate at the rear.

[0007] The adjustment structure includes two L-shaped plates mounted on the front of the fixed plate at the front, a worm gear mounted in the middle of the two L-shaped plates, a connecting plate mounted on the top surface of the fixed plate at the rear, and a slide rail mounted on the top surface of the connecting plate.

[0008] The beneficial effects of this utility model are:

[0009] By adjusting the design of the structure, the rotating turntable drives the worm to rotate. Since the worm and the two worm wheels are in a meshing state, the rotation of the worm can drive the two worm wheels to rotate synchronously. The rotational motion of the worm wheels is transmitted to the threaded sleeve through a coaxial connection, causing it to rotate around its own axis. According to the principle of screw transmission, the circular rotation of the threaded sleeve will be converted into the linear motion of the screw along the axis, thereby driving the slider fixedly connected to it to move smoothly along the slide rail.

[0010] Meanwhile, during the movement of the slider, not only does it drive the two guide wheels installed at the end to move synchronously, achieving precise adjustment of the longitudinal position of the guide wheels, but it also drives the movable plate to move synchronously through a rigid connection. The adjustable design of the movable plate and the guide plate allows the equipment to easily adapt to the processing needs of blanks of different shapes and sizes. Whether it is a large blank or a small precision part, a suitable processing position can be found on this equipment, greatly expanding the application range of the equipment. Furthermore, the synergistic effect of the movable plate and the guide plate reduces the adjustment time and scrap rate during blank processing, thereby improving production efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the overall structure of the present utility model. Figure 2 ;

[0013] Figure 3 This is a schematic diagram of the overall structure of the present utility model. Figure 3 ;

[0014] Figure 4 This is a top view of the present invention;

[0015] Figure 5 This is a rear view schematic diagram of the present invention.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Fixed plate; 11. Limiting plate; 2. Guide structure; 21. Rotating wheel; 22. Guide wheel; 23. Servo motor; 24. Sprocket; 25. Chain; 3. Adjustment structure; 31. L-shaped plate; 32. Worm gear; 33. Connecting plate; 34. Slide rail; 35. Slider; 36. Lead screw; 37. Threaded sleeve; 38. Worm gear; 39. Movable plate; 39. Guide plate. Detailed Implementation

[0018] The following will be combined with the appendix Figure 1 To be continued Figure 5The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0019] It should be noted that, in the embodiments of this utility model, the directions shown in the accompanying drawings shall prevail, such as front and back. Figure 1 For the sake of accuracy, the specific details should be as follows: Figure 1 The left side is the front. Figure 1 The right side is the rear; at the same time, as Figure 2 As shown, the horizontal direction is roughly defined as left and right, and the vertical direction is defined as up and down. If a specific orientation changes, the directional indication will also change accordingly.

[0020] Example 1

[0021] Please see Figure 1 - Figure 5 As shown, this embodiment provides an auxiliary feeding device for a nut cold heading machine, including two symmetrically distributed fixed plates 1, a guide structure 2 in the middle of the fixed plate 1, and an adjustment structure 3 above the guide structure 2.

[0022] The guide structure 2 has two rotating wheels 21 that are equidistantly distributed in the middle and a guide wheel 22 located above the rotating wheels 21, as well as a servo motor 23 installed on the back of the fixed plate 1 located at the rear. The servo motor 23 provides power for the rotation of the guide wheel 22.

[0023] The adjustment structure 3 includes two L-shaped plates 31 mounted on the front of the fixed plate 1, a worm gear 32 mounted in the middle of the two L-shaped plates 31, a connecting plate 33 mounted on the top surface of the fixed plate 1 located at the rear, and a slide rail 34 mounted on the top surface of the connecting plate 33. The connecting plate fixes the position of the slide rail and further limits the slider 35 and the guide wheel 22.

[0024] This invention addresses the shortcomings of existing devices, which lack rapid and flexible adjustment methods for frequent switching of blanks of different sizes and shapes. These limitations prevent the provision of stable placement space and precise guidance during blank transfer, leading to blanks being prone to shifting and rolling, increasing the probability of feeding failures and reducing the accuracy of blank posture during cold heading, thereby reducing product quality and production efficiency. Therefore, by designing the adjustment structure 3, the rotating turntable drives the worm 32 to rotate. Since the worm 32 and the two worm wheels 38 are in a meshing state, the rotation of the worm 32 can drive the two worm wheels 38 to rotate synchronously. The rotational motion of the worm wheels 38 is then transmitted to the threaded sleeve 37 through a coaxial connection, causing it to rotate around its own axis. According to the principle of screw transmission, the rotation of the threaded sleeve 37 is converted into the linear motion of the screw 36 along the axial direction, thereby driving the slider 35, which is fixedly connected to it, to move smoothly along the slide rail 34.

[0025] Meanwhile, during the movement of the slider 35, it not only drives the two guide wheels 22 installed at the end to move synchronously, realizing precise adjustment of the longitudinal position of the guide wheels 22, but also drives the movable plate 39 to move synchronously through a rigid connection. The adjustable design of the movable plate 39 and the guide plate 391 allows the equipment to easily adapt to the processing needs of blanks of different shapes and sizes. Whether it is a large blank or a small precision part, a suitable processing position can be found on this equipment, which greatly expands the application range of the equipment. Furthermore, the synergistic effect of the movable plate 39 and the guide plate 391 reduces the adjustment time and scrap rate during the blank processing, and improves production efficiency.

[0026] Example 2

[0027] like Figure 4 - Figure 5 As shown, a slider 35 is slidably connected to the inner wall of the slide rail 34. The slider 35 is fixedly connected to the guide wheel 22. A lead screw 36 is installed on the top of the slider 35. A threaded sleeve 37 is threadedly connected to the outside of the lead screw 36. A worm gear 38 is fixedly connected to the top of the threaded sleeve 37. The worm gear 38 is meshed with the worm 32. One end of the worm 32 is rotatably connected to the inner wall of one of the L-shaped plates 31, and the other end passes through another L-shaped plate 31 and is fixedly connected to a turntable. A limit plate 11 is installed on the top of the front fixed plate 1. A movable part is slidably connected to the inner wall of the limit plate 11. Plate 39, movable plate 39 and slider 35 are fixedly connected to the side away from guide wheel 22. Guide plate 391 is provided below movable plate 39. One end of two guide wheels 22 is fixedly connected to sprocket 24. Chain 25 is meshed with the outside of sprocket 24. The output end of servo motor 23 passes through fixed plate 1 located at the rear and is fixedly connected to one of sprocket 24. The transmission connection between sprocket 24 and chain 25 makes the two guide wheels 22 rotate synchronously, ensuring the consistency of guiding the blank on both sides. Movable plate 39 and guide plate 391 work together to provide stable support during blank transmission.

[0028] It is worth noting that the two equidistant rotating wheels 21 support the blank, and the upper guide wheel 22 rotates under the drive of the servo motor 23, which can effectively guide the blank transmission direction, ensure that the blank is smoothly and accurately conveyed to the cold heading machine, reduce the deviation during the transmission process, and ensure the stability and accuracy of the feeding. The adjustment structure 3 drives the worm 32 to rotate by rotating the turntable. The worm 32 meshes with the worm wheel 38, causing the threaded sleeve 37 to rotate, which in turn drives the lead screw 36 and the connected slider 35 to move on the slide rail 34. On the one hand, it realizes the precise adjustment of the longitudinal position of the guide wheel 22, which can adapt to blanks of different sizes. On the other hand, the slider 35 drives the movable plate 39 to move. The movable plate 39 cooperates with the lower guide plate 391 to provide an adjustable placement space for the blank, meet the needs of blanks of different shapes, and greatly expand the application range of the device.

[0029] Work steps;

[0030] First, based on the size and shape of the blank, the turntable is rotated to initiate the adjustment process. At this time, the turntable drives the worm gear 32 to rotate, and the worm gear 32 meshes with the worm wheel 38, driving the threaded sleeve 37 to rotate. This, in turn, causes the lead screw 36 to drive the slider 35 to move along the slide rail 34. During this process, the slider 35 drives the guide wheel 22 to achieve longitudinal position adjustment, and simultaneously drives the movable plate 39 to move, adjusting the space between the movable plate 39 and the guide plate 391 to fit the current blank. The blank is then placed above the guide plate 391, and the servo motor 23 is started. The output of motor 23 drives the sprocket 24 connected to it to rotate. Through the chain 25, the two guide wheels 22 rotate synchronously. The rotating wheel 21 supports the blank to move forward, and the guide wheel 22 precisely guides the blank to be transported, ensuring that the blank is transported to the cold heading machine smoothly and accurately. During the transport process, the movable plate 39 and the guide plate 391 work together to provide stable support for the blank, preventing it from deviating or rolling, maintaining the correct posture of the blank during cold heading, reducing adjustment time and scrap rate, and helping the cold heading machine to complete the nut processing efficiently and with high quality.

[0031] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. An auxiliary feeding device for a nut cold heading machine, comprising two symmetrically distributed fixed plates (1), characterized in that: A guide structure (2) is provided in the middle of the fixed plate (1), and an adjustment structure (3) is provided above the guide structure (2). The guide structure (2) has two rotating wheels (21) that are equidistantly distributed in the middle and a guide wheel (22) located above the rotating wheels (21), as well as a servo motor (23) installed on the back of the fixed plate (1) located at the rear. The adjustment structure (3) includes two L-shaped plates (31) installed on the front of the fixed plate (1) in front, a worm gear (32) installed in the middle of the two L-shaped plates (31), a connecting plate (33) installed on the top surface of the fixed plate (1) in the rear, and a slide rail (34) installed on the top surface of the connecting plate (33).

2. The auxiliary feeding device for a nut cold heading machine according to claim 1, characterized in that: The inner wall of the slide rail (34) is slidably connected to a slider (35), and the slider (35) is fixedly connected to the guide wheel (22).

3. The auxiliary feeding device for a nut cold heading machine according to claim 2, characterized in that: A lead screw (36) is mounted on the top of the slider (35), and a threaded sleeve (37) is threadedly connected to the outside of the lead screw (36).

4. The auxiliary feeding device for a nut cold heading machine according to claim 3, characterized in that: The top of the threaded sleeve (37) is fixedly connected to a worm gear (38), and the worm gear (38) is meshed with the worm (32).

5. The auxiliary feeding device for a nut cold heading machine according to claim 4, characterized in that: One end of the worm (32) is rotatably connected to the inner wall of one of the L-shaped plates (31), and the other end passes through another L-shaped plate (31) and is fixedly connected to a turntable.

6. The auxiliary feeding device for a nut cold heading machine according to claim 5, characterized in that: A limiting plate (11) is installed on the top of the fixed plate (1) located in front. A movable plate (39) is slidably connected to the inner wall of the limiting plate (11). The movable plate (39) is fixedly connected to the side of the slider (35) away from the guide wheel (22). A guide plate (391) is provided below the movable plate (39).

7. The auxiliary feeding device for a nut cold heading machine according to claim 1, characterized in that: One end of each of the two guide wheels (22) is fixedly connected to a sprocket (24), and the sprocket (24) is externally connected to a chain (25). The output end of the servo motor (23) passes through the fixed plate (1) located at the rear and is fixedly connected to one of the sprockets (24).

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