A high-precision feeding mechanism for a cold heading machine

Abstract

This utility model relates to the field of cold heading machine technology, and provides a high-precision feeding mechanism for a cold heading machine, including: a machine body and a conveyor belt. A motor is fixedly installed at the front end of the machine body, and a drive shaft and a driven shaft are rotatably connected to the inner side of the machine body. The driven shaft is driven by the drive shaft through the conveyor belt. An adjustable limiting mechanism is provided on the top of the machine body. The adjustable limiting mechanism includes a support. In this utility model, by providing an adjustable limiting mechanism, when the bearing material is conveyed by the conveyor belt, the rotating block can be manually rotated to drive the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod will cause the two sets of sliders to move away from each other through the engagement of the threads. At this time, the opening and closing angle of the two sets of limiting plates will change through components such as gears and racks, thereby limiting the bearing material of different sizes and placing it in the middle of the conveyor belt.

Description

Technical Field

[0001] This utility model relates to the field of cold heading machine technology, specifically to a high-precision feeding mechanism for a cold heading machine. Background Technology

[0002] A cold heading machine is a stamping machine primarily used for cold forming of metal materials. A new type of cold heading machine developed in 2020 employs a combined design of a rotating mechanism, an adjusting mechanism, and a processing mechanism, achieving adjustable stamping distance and solving the problem of inflexible adjustment in traditional equipment. Its processing range covers cutting, bending, and bulging processes, and it can handle iron, copper, and stainless steel materials, suitable for workpieces with an outer diameter of 6-25mm and a length of 5-60mm.

[0003] The utility model with publication number CN222806047U discloses a feeding mechanism for a cold heading machine, including a positioning base. The positioning base is used for supporting and positioning the feeding mechanism for the cold heading machine. An angle adjustment mechanism is rotatably provided at the top of the positioning base. Both ends of the top of the angle adjustment mechanism are fixedly provided with arrangement adjustment mechanisms. The arrangement adjustment mechanism includes a positioning seat, and an arrangement adjustment frame is rotatably provided at the top of the positioning seat.

[0004] The aforementioned application document separates one side of the positioning block from the outer wall of the positioning gear, rotates the arrangement adjustment frame to adjust the angle of the arrangement adjustment frame, which facilitates the guidance of materials at the top of the conveyor belt at different speeds and the guidance of materials of different sizes with different forces. However, its overall limiting effect on the processed materials is poor, and the adjustment requires rotating two sets of arrangement adjustment frames separately, which is inconvenient. Furthermore, the processed materials may be damaged when they collide with the arrangement adjustment frame, affecting the accuracy of the finished product. Therefore, it needs to be improved. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this utility model provide a high-precision feeding mechanism for a cold heading machine, which solves the technical problem that the adjustment of the prior art requires the rotation of two sets of arrangement adjustment frames separately, which is inconvenient.

[0006] According to one aspect, at least one embodiment of the present invention provides a high-precision feeding mechanism for a cold heading machine, comprising: a machine body and a conveyor belt; a motor is fixedly installed at the front end of the machine body; a drive shaft and a driven shaft are rotatably connected to the inner side of the machine body; the driven shaft is drivenly connected to the drive shaft via the conveyor belt; an adjustable limiting mechanism is provided at the top of the machine body; the adjustable limiting mechanism includes a support, the support is fixedly connected to the top of the machine body; a rotating shaft is rotatably connected through the top of the support; a rotating plate is fixedly connected to the surface of the rotating shaft; a limiting plate is fixedly connected to the bottom of the rotating plate; a gear is fixedly connected to the top of the rotating shaft; a fixed plate is fixedly connected to the top of the support; a bidirectional threaded rod is rotatably connected through the side of the fixed plate; a sliding rod is fixedly connected to the side of the fixed plate; a slider is slidably connected to the surface of the sliding rod; and a toothed rod is fixedly connected to the top of the slider.

[0007] For example, in a high-precision feeding mechanism for a cold heading machine provided in at least one embodiment of the present invention, the following is also included: the diameter of the drive shaft and the driven shaft are equal, and the output shaft of the motor is fixedly connected to the drive shaft. When the motor is turned on, the drive shaft can be driven to rotate. The rotation of the drive shaft cooperates with the driven shaft to enable the conveyor belt to transport the bearing material.

[0008] The bottom of the limiting plate is close to the top of the conveyor belt, and the side of the limiting plate is provided with a buffer and shock absorption mechanism. The limiting plate can ensure that the bearing material is always located in the middle of the conveyor belt during the conveying process.

[0009] The teeth on the gear are matched with the teeth on the rack, and the bottom of the rotating shaft is rotatably connected to the top of the machine body. When the rack moves, its teeth mesh with the teeth on the gear, which will drive the gear to rotate.

[0010] A rotating block is fixedly connected to the surface of the bidirectional threaded rod, and the surface of the rotating block is provided with anti-slip texture. The bidirectional threaded rod can be rotated by manually rotating the rotating block.

[0011] The slider is connected to the bidirectional threaded rod via an internal thread. Both ends of the bidirectional threaded rod are provided with limit blocks. When the bidirectional threaded rod rotates, the slider moves along the rod through the engagement of the threads.

[0012] According to another aspect, at least one embodiment of the present invention also provides a buffer and shock absorption mechanism, including: a slide groove, the slide groove being formed on the side of a limiting plate, a buffer spring being provided inside the slide groove, a buffer block being slidably connected inside the slide groove via the buffer spring, a hydraulic chamber being passed through and fixedly connected to the side of the slide groove, a piston rod being slidably connected inside the hydraulic chamber, and a connecting pipe A and a connecting pipe B being provided inside the piston rod.

[0013] For example, in at least one embodiment of the present invention, the piston rod is further provided with a fixed connection at one end away from the hydraulic chamber to a buffer block, the hydraulic chamber being filled with hydraulic oil, and the piston rod moving to the right when the buffer block moves into the slide groove.

[0014] Both the connecting pipe A and the connecting pipe B are equipped with one-way valves, and the one-way valves in the connecting pipe A and the connecting pipe B are connected in opposite directions. When the piston rod moves to the right, the hydraulic oil will flow through the connecting pipe A.

[0015] The diameters of the connecting pipe A and the connecting pipe B are equal, and the number of connecting pipes A is twice that of connecting pipes B.

[0016] The beneficial effects of this utility model are as follows: This invention incorporates an adjustable limiting mechanism, allowing the rotating block to be manually rotated to drive the bidirectional threaded rod during the conveyor belt transport of bearing materials. The rotation of the bidirectional threaded rod causes the two sets of sliders to move away from each other through the engagement of the threads. At this time, the opening and closing angle of the two sets of limiting plates changes through components such as gears and racks, thereby limiting the bearing materials of different sizes and keeping them in the middle of the conveyor belt.

[0017] In this embodiment, a buffer and shock absorption mechanism is provided. When the bearing material comes into contact with the limiting plate during the conveyor belt process, the impact force is absorbed by the combination of components such as buffer blocks and buffer springs. At the same time, the rebound of the buffer spring is reduced by the combination of components such as hydraulic chamber, piston rod, and connecting pipe A. This buffer and shock absorption effect is achieved for the bearing material, preventing damage during the conveying process and affecting the quality of the subsequent bearing products. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0019] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional sectional view of the overall structure of this utility model; Figure 3 This is a three-dimensional front view of the adjustable limiting mechanism structure of this utility model; Figure 4 This is a three-dimensional side view of the adjustable limiting mechanism structure of this utility model; Figure 5 This is a three-dimensional sectional view of the buffer and shock absorption mechanism structure of this utility model; Figure 6 This is a three-dimensional schematic diagram of the internal structure of the hydraulic chamber of this utility model.

[0020] In the diagram: 1. Machine body; 2. Motor; 3. Conveyor belt; 4. Drive shaft; 5. Driven shaft; 6. Adjustable limit mechanism; 61. Support; 62. Rotating shaft; 63. Rotating plate; 64. Limiting plate; 65. Gear; 66. Fixed plate; 67. Bidirectional threaded rod; 68. Rotating block; 69. Slide rod; 610. Sliding block; 611. Gear rack; 7. Buffer and shock absorption mechanism; 71. Slide groove; 72. Buffer spring; 73. Buffer block; 74. Hydraulic chamber; 75. Piston rod; 76. Connecting pipe A; 77. Connecting pipe B. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0022] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0023] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] like Figures 1-6 As shown, a high-precision feeding mechanism for a cold heading machine according to an embodiment of the present invention is illustrated, including a machine body 1 and a conveyor belt 3. A motor 2 is fixedly installed at the front end of the machine body 1. A drive shaft 4 and a driven shaft 5 are rotatably connected to the inner side of the machine body 1. The driven shaft 5 is connected to the drive shaft 4 via the conveyor belt 3. An adjustable limiting mechanism 6 is provided at the top of the machine body 1. The adjustable limiting mechanism 6 includes a support 61, which is fixedly connected to the top of the machine body 1. A rotating shaft 62 is rotatably connected through the top of the support 61. A rotating plate 63 is fixedly connected to the surface of the rotating shaft 62. A limiting plate 64 is fixedly connected to the bottom of the rotating plate 63. A gear 65 is fixedly connected to the top of the rotating shaft 62. A fixing plate 66 is fixedly connected to the top of the support 61. A bidirectional threaded rod 67 is rotatably connected through the side of the fixing plate 66. A sliding rod 69 is fixedly connected to the side of the fixing plate 66. A slider 610 is slidably connected to the surface of the sliding rod 69. A toothed rod 611 is fixedly connected to the top of the slider 610.

[0028] For example, in a high-precision feeding mechanism for a cold heading machine provided in at least one embodiment of the present invention, the following is also included: the diameter of the drive shaft 4 and the driven shaft 5 are equal, and the output shaft of the motor 2 is fixedly connected to the drive shaft 4. When the motor 2 is turned on, the drive shaft 4 can be driven to rotate. The rotation of the drive shaft 4 cooperates with the driven shaft 5 to enable the conveyor belt 3 to transport the bearing material.

[0029] The bottom of the limiting plate 64 is close to the top of the conveyor belt 3, and the side of the limiting plate 64 is provided with a buffer and shock absorption mechanism 7. The limiting plate 64 can ensure that the bearing material is always located in the middle of the conveyor belt 3 during the conveying process.

[0030] The teeth on gear 65 are matched with the teeth on rack 611. The bottom of shaft 62 is rotatably connected to the top of body 1. When rack 611 moves, its teeth mesh with the teeth on gear 65, which will drive gear 65 to rotate.

[0031] A rotating block 68 is fixedly connected to the surface of the bidirectional threaded rod 67, and the surface of the rotating block 68 is provided with anti-slip texture. The bidirectional threaded rod 67 can be rotated by manually rotating the rotating block 68.

[0032] The slider 610 is threadedly connected to the bidirectional threaded rod 67 via an internal thread. Both ends of the bidirectional threaded rod 67 are provided with limit blocks. When the bidirectional threaded rod 67 rotates, the slider 610 will move along the slide rod 69 through the engagement of the threads.

[0033] This embodiment features an adjustable limiting mechanism 6, which allows the rotating block 68 to be manually rotated to drive the bidirectional threaded rod 67 to rotate during the conveyor belt 3 for transporting bearing materials. The rotation of the bidirectional threaded rod 67 causes the two sets of sliders 610 to move away from each other through the engagement of the threads. At this time, the opening and closing angle of the two sets of limiting plates 64 changes through components such as gears 65 and racks 611, thereby limiting the bearing materials of different sizes and keeping them in the middle of the conveyor belt 3.

[0034] In this embodiment, the bearing material is placed on the conveyor belt 3, and the motor 2 is turned on to drive the drive shaft 4 to rotate. The rotation of the drive shaft 4, in conjunction with the driven shaft 5 and the conveyor belt 3, transports the bearing material. Manually rotating the rotating block 68 can drive the bidirectional threaded rod 67 to rotate. The rotation of the bidirectional threaded rod 67 will cause the two sets of sliders 610 to move away from each other through the engagement of the threads. The movement of the sliders 610 will drive the rack 611 to move. When the rack 611 moves, its teeth mesh with the teeth on the gear 65, which will drive the gear 65 to rotate. The rotation of the gear 65 will drive the rotating shaft 62 to rotate. The rotation of the rotating shaft 62 will drive the rotating plate 63 to rotate. The rotation of the rotating plate 63 will drive the limiting plate 64 to rotate. By adjusting the opening and closing angle of the two sets of limiting plates 64, the bearing materials of different sizes can be limited to the middle of the conveyor belt 3. The overall adjustment is simple and easy to use.

[0035] According to another aspect, at least one embodiment of the present invention also provides a buffer and shock absorption mechanism 7, including: a slide groove 71, the slide groove 71 being formed on the side of the limiting plate 64, a buffer spring 72 being provided inside the slide groove 71, a buffer block 73 being slidably connected inside the slide groove 71 through the buffer spring 72, a hydraulic chamber 74 being passed through and fixedly connected to the side of the slide groove 71, a piston rod 75 being slidably connected inside the hydraulic chamber 74, and a connecting pipe A76 and a connecting pipe B77 being provided inside the piston rod 75.

[0036] For example, in at least one embodiment of the present invention, the piston rod 75 is further provided with a fixed connection at one end away from the hydraulic chamber 74 to the buffer block 73. The hydraulic chamber 74 is provided with hydraulic oil. When the buffer block 73 moves into the slide groove 71, it will drive the piston rod 75 to move to the right.

[0037] Both connecting pipe A76 and connecting pipe B77 are equipped with one-way valves, and the one-way valves in connecting pipe A76 and connecting pipe B77 are connected in opposite directions. When piston rod 75 moves to the right, hydraulic oil will flow through connecting pipe A76.

[0038] The diameters of connecting pipes A76 and B77 are equal, and the number of connecting pipes A76 is twice that of connecting pipes B77.

[0039] In this embodiment, a buffer and shock absorption mechanism 7 is provided. When the bearing material comes into contact with the limiting plate 64 during the conveying process of the conveyor belt 3, the impact force is absorbed by the combination of components such as the buffer block 73 and the buffer spring 72. At the same time, the rebound of the buffer spring 72 is reduced by the combination of components such as the hydraulic chamber 74, the piston rod 75, and the connecting pipe A76. This buffer and shock absorption effect is achieved on the bearing material to prevent damage during the conveying process and to avoid affecting the quality of the subsequent bearing products.

[0040] In this embodiment, when the bearing material is conveyed by the conveyor belt 3, it will come into contact with the limiting plate 64. At this time, the bearing material will first impact the buffer block 73. The buffer block 73 will move into the slide groove 71 due to the impact. The buffer spring 72 will absorb the impact force and be gradually compressed. The movement of the buffer block 73 will drive the piston rod 75 to move to the right. When the piston rod 75 moves to the right, the hydraulic oil will flow through the connecting pipe A76. At this time, due to the large number of connecting pipes A76, the resistance experienced by the piston rod 75 is small. When the buffer spring 72 rebounds and drives the buffer block 73 to return to its original position, the piston rod 75 moves to the left. The hydraulic oil will flow through the smaller number of connecting pipes B77. At this time, the resistance experienced is larger, thereby reducing the rebound amplitude of the buffer spring 72, so that the whole system can achieve the effect of buffering and shock absorption, preventing damage during the conveying process and affecting the quality of the subsequent bearing products.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-precision feeding mechanism for a cold header, characterized by comprising: Includes a machine body (1) and a conveyor belt (3). A motor (2) is fixedly installed at the front end of the machine body (1). A drive shaft (4) and a driven shaft (5) are rotatably connected to the inner side of the machine body (1). The driven shaft (5) is connected to the drive shaft (4) through the conveyor belt (3). An adjustable limiting mechanism (6) is provided on the top of the machine body (1). The adjustable limiting mechanism (6) includes a support (61), which is fixedly connected to the top of the body (1). A rotating shaft (62) is rotatably connected through the top of the support (61). A rotating plate (63) is fixedly connected to the surface of the rotating shaft (62). A limiting plate (64) is fixedly connected to the bottom of the rotating plate (63). A gear (65) is fixedly connected to the top of the rotating shaft (62). A fixing plate (66) is fixedly connected to the top of the support (61). A bidirectional threaded rod (67) is rotatably connected through the side of the fixing plate (66). A sliding rod (69) is fixedly connected to the side of the fixing plate (66). A slider (610) is slidably connected to the surface of the sliding rod (69). A toothed rod (611) is fixedly connected to the top of the slider (610).

2. The high-precision feeding mechanism for a cold header according to claim 1, characterized in that, The diameters of the drive shaft (4) and the driven shaft (5) are equal, and the output shaft of the motor (2) is fixedly connected to the drive shaft (4).

3. The high-precision feeding mechanism for a cold header according to claim 2, characterized in that, The bottom of the limiting plate (64) is close to the top of the conveyor belt (3), and a buffer and shock absorption mechanism (7) is provided on the side of the limiting plate (64).

4. The high-precision feeding mechanism for a cold header according to claim 3, characterized in that, The teeth on the gear (65) are matched with the teeth on the rack (611), and the bottom of the rotating shaft (62) is rotatably connected to the top of the body (1).

5. A high-precision feeding mechanism for a cold header as set forth in claim 4, characterized in that, The surface of the bidirectional threaded rod (67) is fixedly connected to a rotating block (68), and the surface of the rotating block (68) is provided with anti-slip texture.

6. A high-precision feeding mechanism for a cold heading machine according to claim 5, characterized in that, The slider (610) is threadedly connected to the bidirectional threaded rod (67) via an internal thread, and both ends of the bidirectional threaded rod (67) are provided with limit blocks.

7. A high-precision feeding mechanism for a cold header as set forth in claim 6, characterized in that, The buffer and shock absorption mechanism (7) includes a slide (71), which is opened on the side of the limiting plate (64). A buffer spring (72) is provided inside the slide (71). A buffer block (73) is slidably connected inside the slide (71) through the buffer spring (72). A hydraulic chamber (74) is connected through and fixedly connected to the side of the slide (71). A piston rod (75) is slidably connected inside the hydraulic chamber (74). A connecting pipe A (76) and a connecting pipe B (77) are provided inside the piston rod (75).

8. The high-precision feeding mechanism for a cold header according to claim 7, characterized in that, The piston rod (75) is fixedly connected to the buffer block (73) at the end away from the hydraulic chamber (74), and the hydraulic chamber (74) is filled with hydraulic oil.

9. The high-precision feeding mechanism for a cold header according to claim 8, characterized in that, Both the connecting pipe A (76) and the connecting pipe B (77) are equipped with one-way valves, and the one-way valves in the connecting pipe A (76) and the connecting pipe B (77) are connected in opposite directions.

10. A high-precision feeding mechanism for a cold heading machine according to claim 9, characterized in that, The diameters of the connecting pipe A (76) and the connecting pipe B (77) are equal, and the number of the connecting pipes A (76) is twice that of the connecting pipes B (77).

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