A cold heading machine for automatically calibrating a punch

Abstract

The utility model relates to cold header technology field, the utility model discloses an embodiment provides a kind of cold header of automatic calibration punch, including cold header body, the side of the cold header body is provided with control cabinet, the inside of the cold header body is provided with moving box, the side of the moving box is installed with punch, the inside of the cold header body is fixedly connected with forming assembly, the inside of the cold header body is provided with calibration mechanism.In the utility model, start bidirectional motor, drive screw rod rotation, drive screw sleeve linear motion by limiting shaft, and then drive calibration plate to move, push punch to calibrate, simultaneously, connecting rod drives push rod extrusion stress bar, stress bar enters hydraulic cylinder, hydraulic pressure pushes out hydraulic rod, drives calibration arc plate to move, completes the overall calibration of punch, by the above technical solution, solve the technical problem that punch cannot be automatically calibrated in relevant technology.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of cold heading machine technology, specifically to a cold heading machine with automatic punch calibration. Background Technology

[0002] A cold heading machine is a type of mechanical equipment used for cold working of metals. It is widely used in the forming and processing of metal parts, especially in the manufacture of parts with complex shapes and precision dimensions. Cold heading technology is a process that uses molds and stamping pressure to press metal materials into the desired shape at room temperature. It is commonly used in the manufacture of automotive parts, electronic components, and precision hardware.

[0003] According to a public disclosure of a cold heading machine (publication number: CN 203900373U): it includes a machine body, a worktable on the machine body, a mold closing control device on the machine body above the worktable, an upper working head at the lower end of the mold closing control device; a forming control device on one side of the machine body, a side working head fixed to the forming control device, and a stop device on the other side of the machine body; an upper working head guide device and a side working head guide device are provided on the machine body.

[0004] In the aforementioned application, the cooperation between the worktable and the forming control device components makes it difficult to automatically calibrate the punch before processing the workpiece, resulting in punch misalignment and failure to ensure the docking accuracy between the punch and the workpiece. Therefore, we propose a cold heading machine for automatically calibrating the punch. Utility Model Content

[0005] To overcome the above-mentioned defects, embodiments of this utility model provide a cold heading machine for automatically calibrating punches, which solves the problem that punches cannot be automatically calibrated in related technologies.

[0006] According to one aspect, at least one embodiment of the present invention provides a cold heading machine for automatically calibrating punches, including a cold heading machine body, a control console is provided on the side of the cold heading machine body, a control panel is provided on the side of the control console, a movable box is provided inside the cold heading machine body, a punch is installed on the side of the movable box, a forming component is fixedly connected inside the cold heading machine body, and a calibration mechanism is provided inside the cold heading machine body.

[0007] The calibration mechanism includes a mounting plate, the side of which is fixedly connected to the inner wall of a movable box. A bidirectional motor is fixedly connected to the side of the mounting plate, and a threaded rod is rotatably connected to the output end of the bidirectional motor. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod, and a connecting rod is fixedly connected to the side of the threaded sleeve. A calibration plate is fixedly connected to the end of the connecting rod away from the side of the threaded sleeve.

[0008] For example, in at least one embodiment of the present invention, an automatic punch calibration cold heading machine further includes: a hydraulic cylinder fixedly connected to the inner wall of the movable box; a force rod slidably connected to one end of the hydraulic cylinder via a piston; a hydraulic rod connected to one end of the force rod via a hydraulic cylinder transmission; and a calibration arc plate fixedly connected to one end of the hydraulic rod away from the side of the hydraulic cylinder, the purpose of which is to accurately calibrate the punch.

[0009] A return spring is fixedly connected to the side of the hydraulic cylinder. The end of the return spring away from the side of the hydraulic cylinder is fixedly connected to the circumferential surface of the force-bearing rod. A push rod is fixedly connected to the bottom of the connecting rod. The purpose of this is to ensure that the force-bearing rod automatically resets and reduces manual intervention.

[0010] A limiting shaft is fixedly connected to the side of the mounting plate. The circumferential surface of the limiting shaft penetrates and slides through the side of the threaded sleeve. A limiting plate is fixedly connected inside the movable box. The side of the limiting plate penetrates the circumferential surface of the threaded rod. The function of the limiting shaft is to prevent the threaded sleeve from moving and rotating. The function of the limiting plate is to limit the displacement distance of the threaded sleeve.

[0011] The number of threaded rods, calibration plates, and hydraulic cylinders is set to two, and they are symmetrical to each other along the vertical central axis of the moving box. One end of the force rod is located on the displacement trajectory of the push rod. The purpose is to calibrate the punch in all aspects through the two calibration plates and the calibration arc plate to ensure that the push rod can squeeze the force rod when it moves.

[0012] According to another aspect, at least one embodiment of the present invention also provides an automatic punch calibration cold heading machine, including a receiving mechanism. The receiving mechanism includes a rotating shaft, one end of which is fixedly connected to one end of a threaded rod. A gear is fixedly passed through the circumferential surface of the rotating shaft. A sliding groove is provided on the side of the movable box, and a rack is slidably connected inside the sliding groove. A moving rod is fixedly connected to the side of the rack, and a pusher plate is fixedly connected to the end of the moving rod away from the side of the rack. The purpose is to ensure that the processed workpieces can be automatically collected and prevent accumulation.

[0013] For example, in at least one embodiment of the present invention, an automatic punch calibration cold heading machine is provided, which further includes: an inclined groove is provided inside the cold heading machine body, a placement groove is provided on the side of the cold heading machine body, and a collection box is slidably connected inside the placement groove, the purpose of which is to transport the workpiece to the inside of the collection box.

[0014] A buffer spring is fixedly connected inside the collection box, and a buffer plate is fixedly connected to the end of the buffer spring away from the inside of the collection box. The purpose of this is to buffer the collected workpieces and prevent damage from impact.

[0015] The circumferential surface of the gear meshes with the side surface of the rack, and the top of the collection box is located below the inclined groove. The purpose of this is to ensure that the gear rotates and drives the rack to move, so that the workpiece can accurately slide into the collection box through the inclined groove.

[0016] The number of the rotating shaft, rack, and pusher plate is set to two, and they are symmetrical to each other along the vertical central axis of the moving box. The buffer spring is initially in a relaxed state, which is intended to improve the workpiece collection efficiency.

[0017] The beneficial effects of the embodiments of this utility model are as follows:

[0018] 1. In this utility model, through the cooperation of components such as the bidirectional motor, calibration plate, and hydraulic cylinder of the calibration mechanism, the bidirectional motor is started, driving the threaded rod to rotate. The threaded sleeve is driven to move linearly through the limiting shaft, thereby driving the calibration plate to move and pushing the punch to perform calibration. At the same time, the connecting rod drives the push rod to squeeze the force rod. The force rod enters the hydraulic cylinder, and the hydraulic pressure pushes the hydraulic rod to extend, driving the calibration arc plate to move and completing the full calibration of the punch. This design achieves the effect of automatic calibration of the punch, ensuring its precise docking with the workpiece.

[0019] 2. In this utility model, through the mutual cooperation of components such as gears, pusher plates, and collection boxes in the material receiving mechanism, the rotation of the threaded rod drives the rotating shaft, which in turn drives the gears to rotate. The gears mesh with the rack, causing the rack to move within the slide groove, which in turn drives the pusher plate to push the workpiece inside the cold heading machine body. The workpiece slides into the collection box through the inclined groove. When it falls, it is damped by buffer springs and buffer plates to prevent damage. This design achieves the effect of automatically collecting the processed workpiece, effectively pushing the workpiece, ensuring smooth collection, and reducing workpiece damage. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a structural schematic diagram of the three-dimensional appearance of the present invention from a first-person perspective;

[0022] Figure 2 This is a first-person three-dimensional cross-sectional structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the present invention from a second-view three-dimensional cross-section;

[0024] Figure 4 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram;

[0025] Figure 5 This utility model Figure 3 A three-dimensional magnified structural diagram of B.

[0026] In the diagram: 1. Cold heading machine body; 2. Control console; 3. Control panel; 4. Moving box; 5. Punch; 6. Forming assembly; 7. Calibration mechanism; 71. Mounting plate; 72. Bidirectional motor; 73. Threaded rod; 74. Threaded sleeve; 75. Connecting rod; 76. Calibration plate; 77. Hydraulic cylinder; 78. Force rod; 79. Hydraulic rod; 710. Calibration arc plate; 711. Return spring; 712. Push rod; 713. Limiting shaft; 714. Limiting plate; 8. Receiving mechanism; 81. Rotating shaft; 82. Gear; 83. Slide groove; 84. Rack; 85. Moving rod; 86. Pushing plate; 87. Inclined chute; 88. Placement chute; 89. Collection box; 810. Buffer spring; 811. Buffer plate. Detailed Implementation

[0027] 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.

[0028] 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."

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] like Figures 1-5 As shown, it illustrates an automatic punch calibration cold heading machine according to an embodiment of the present invention, including a cold heading machine body 1, a control console 2 provided on the side of the cold heading machine body 1, a control panel 3 provided on the side of the control console 2, a movable box 4 provided inside the cold heading machine body 1, a punch 5 installed on the side of the movable box 4, a forming component 6 fixedly connected inside the cold heading machine body 1, and a calibration mechanism 7 provided inside the cold heading machine body 1.

[0034] The calibration mechanism 7 includes a mounting plate 71, the side of which is fixedly connected to the inner wall of the movable box 4. A bidirectional motor 72 is fixedly connected to the side of the mounting plate 71. A threaded rod 73 is rotatably connected to the output end of the bidirectional motor 72. A threaded sleeve 74 is threadedly connected to the circumferential surface of the threaded rod 73. A connecting rod 75 is fixedly connected to the side of the threaded sleeve 74. A calibration plate 76 is fixedly connected to the end of the connecting rod 75 away from the side of the threaded sleeve 74.

[0035] In some examples, the following are also included: a hydraulic cylinder 77 is fixedly connected to the inner wall of the movable box 4, one end of the hydraulic cylinder 77 is slidably connected to a force rod 78 via a piston, one end of the force rod 78 is driven by the hydraulic cylinder 77 to a hydraulic rod 79, and the end of the hydraulic rod 79 away from the side of the hydraulic cylinder 77 is fixedly connected to a calibration arc plate 710, the purpose of which is to accurately calibrate the punch 5.

[0036] A return spring 711 is fixedly connected to the side of the hydraulic cylinder 77. The end of the return spring 711 away from the side of the hydraulic cylinder 77 is fixedly connected to the circumferential surface of the force rod 78. A push rod 712 is fixedly connected to the bottom of the connecting rod 75. The purpose of this is to ensure that the force rod 78 is automatically reset and reduce manual intervention.

[0037] A limiting shaft 713 is fixedly connected to the side of the mounting plate 71. The circumferential surface of the limiting shaft 713 penetrates and slides through the side of the threaded sleeve 74. A limiting plate 714 is fixedly connected inside the movable box 4. The side of the limiting plate 714 penetrates the circumferential surface of the threaded rod 73. The function of the limiting shaft 713 is to prevent the threaded sleeve 74 from moving and rotating. The function of the limiting plate 714 is to limit the displacement distance of the threaded sleeve 74.

[0038] The number of threaded rod 73, calibration plate 76 and hydraulic cylinder 77 is set to two, and they are symmetrical to each other along the vertical central axis of the moving box 4. One end of the force rod 78 is located on the displacement trajectory of the push rod 712. The purpose is to fully calibrate the punch 5 through the two calibration plates 76 and the calibration arc plate 710 to ensure that the movement of the push rod 712 can squeeze the force rod 78.

[0039] For example, such as Figures 1-5 As shown, when a punch is needed to form a workpiece, the operator can start the bidirectional motor 72. The output end of the bidirectional motor 72 rotates, which drives the threaded rod 73 to rotate. The rotation of the threaded rod 73 drives the threaded sleeve 74 to move linearly through the limiting shaft 713. The movement of the threaded sleeve 74 drives the calibration plate 76 to move through the connecting rod 75. The movement of the two calibration plates 76 pushes the punch 5 for calibration. At the same time, the movement of the connecting rod 75 drives the push rod 712 to move. During the movement of the push rod 712, it squeezes the force rod 78. The force rod 78 is forced into the hydraulic cylinder 77. At this time, the hydraulic rod 79 is pushed outward by the pressure of the liquid inside the hydraulic cylinder 77. The movement of the hydraulic rod 79 drives the calibration arc plate 710 to move. The punch 5 is fully calibrated through the calibration plate 76 and the calibration arc plate 710. When the force rod 78 is no longer under force, it is automatically reset by the elasticity of the return spring 711.

[0040] like Figures 1-5As shown, this invention illustrates an automatic punch calibration cold heading machine according to another embodiment of the present invention. It is largely the same as the above-described technical solution, so only the differences are described. It includes a receiving mechanism 8, which includes a rotating shaft 81. One end of the rotating shaft 81 is fixedly connected to one end of a threaded rod 73. A gear 82 is fixedly passed through the circumferential surface of the rotating shaft 81. A sliding groove 83 is provided on the side of the moving box 4. A rack 84 is slidably connected inside the sliding groove 83. A moving rod 85 is fixedly connected to the side of the rack 84. A pusher plate 86 is fixedly connected to the end of the moving rod 85 away from the side of the rack 84. The purpose of this is to ensure that the processed workpieces can be automatically collected and prevent accumulation.

[0041] In some examples, the cold heading machine body 1 is provided with an inclined groove 87 inside and a placement groove 88 is provided on the side of the cold heading machine body 1. A collection box 89 is slidably connected inside the placement groove 88, the purpose of which is to transport the workpiece into the collection box 89.

[0042] A buffer spring 810 is fixedly connected inside the collection box 89. A buffer plate 811 is fixedly connected to the end of the buffer spring 810 away from the inside of the collection box 89. The purpose is to buffer the collected workpieces and prevent damage from impact.

[0043] The circumferential surface of gear 82 meshes with the side of rack 84. The top of collection box 89 is located below inclined groove 87. The purpose is to ensure that the rotation of gear 82 drives rack 84 to move, and to ensure that the workpiece can accurately slide into collection box 89 through inclined groove 87.

[0044] The number of rotating shaft 81, rack 84 and pusher plate 86 is set to two, and they are symmetrical to each other along the vertical central axis of the moving box 4. The buffer spring 810 is initially in a relaxed state, which is intended to improve the workpiece collection efficiency.

[0045] For example, such as Figures 1-5 As shown, the rotation of the threaded rod 73 drives the rotating shaft 81 to rotate, and the rotation of the rotating shaft 81 drives the gear 82 to rotate. Through the meshing of the gear 82 and the rack 84, the rotation of the gear 82 drives the rack 84 to move inside the slide groove 83. The movement of the rack 84 drives the pusher plate 86 to move through the moving rod 85, thereby pushing and pulling back the workpieces that have been processed and accumulated inside the cold heading machine body 1. The pulled-back workpieces slide through the inclined surface of the inclined groove 87 and enter the collection box 89. The workpieces that fall into the collection box 89 are cushioned by the buffer spring 810 and the buffer plate 811 to prevent the workpieces from being damaged by impact.

[0046] 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 cold heading machine for automatically calibrating a punch, characterized by, The cold heading machine includes a cold heading machine body (1), a control console (2) is provided on the side of the cold heading machine body (1), a control panel (3) is provided on the side of the control console (2), a movable box (4) is provided inside the cold heading machine body (1), a punch (5) is installed on the side of the movable box (4), a forming component (6) is fixedly connected inside the cold heading machine body (1), and a calibration mechanism (7) is provided inside the cold heading machine body (1). The calibration mechanism (7) includes a mounting plate (71), the side of which is fixedly connected to the inner wall of the movable box (4), a bidirectional motor (72) is fixedly connected to the side of the mounting plate (71), a threaded rod (73) is rotatably connected to the output end of the bidirectional motor (72), a threaded sleeve (74) is threadedly connected to the circumferential surface of the threaded rod (73), a connecting rod (75) is fixedly connected to the side of the threaded sleeve (74), and a calibration plate (76) is fixedly connected to the end of the connecting rod (75) away from the side of the threaded sleeve (74).

2. The automatic punch calibration cold heading machine according to claim 1, characterized in that, A hydraulic cylinder (77) is fixedly connected to the inner wall of the movable box (4). One end of the hydraulic cylinder (77) is slidably connected to a force rod (78) via a piston. One end of the force rod (78) is connected to a hydraulic rod (79) via the hydraulic cylinder (77). A calibration arc plate (710) is fixedly connected to the end of the hydraulic rod (79) away from the side of the hydraulic cylinder (77).

3. The cold heading machine for automatically calibrating punches according to claim 2, characterized in that, A return spring (711) is fixedly connected to the side of the hydraulic cylinder (77). The end of the return spring (711) away from the side of the hydraulic cylinder (77) is fixedly connected to the circumferential surface of the force rod (78). A push rod (712) is fixedly connected to the bottom of the connecting rod (75).

4. The automatic punch calibration cold heading machine according to claim 3, characterized in that, A limiting shaft (713) is fixedly connected to the side of the mounting plate (71). The circumferential surface of the limiting shaft (713) penetrates and slides through the side of the threaded sleeve (74). A limiting plate (714) is fixedly connected inside the movable box (4). The side of the limiting plate (714) penetrates through the circumferential surface of the threaded rod (73).

5. The automatic punch calibration cold heading machine according to claim 4, characterized in that, The number of the threaded rod (73), calibration plate (76) and hydraulic cylinder (77) is set to two, and they are symmetrical to each other along the vertical central axis of the moving box (4). One end of the force rod (78) is located on the displacement trajectory of the push rod (712).

6. A cold heading machine for automatically calibrating punches according to claim 5, characterized in that, The cold heading machine body (1) is provided with a material receiving mechanism (8) inside. The material receiving mechanism (8) includes a rotating shaft (81). One end of the rotating shaft (81) is fixedly connected to one end of a threaded rod (73). A gear (82) is fixedly passed through the circumferential surface of the rotating shaft (81). A sliding groove (83) is provided on the side of the moving box (4). A rack (84) is slidably connected inside the sliding groove (83). A moving rod (85) is fixedly connected to the side of the rack (84). A pusher plate (86) is fixedly connected to the end of the moving rod (85) away from the side of the rack (84).

7. A cold heading machine for automatically calibrating punches according to claim 6, characterized in that, The cold forging machine body (1) has an inclined groove (87) inside, and a placement groove (88) is provided on the side of the cold forging machine body (1). A collection box (89) is slidably connected inside the placement groove (88).

8. A cold heading machine for automatically calibrating punches according to claim 7, characterized in that, A buffer spring (810) is fixedly connected inside the collection box (89), and a buffer plate (811) is fixedly connected to one end of the buffer spring (810) away from the inside of the collection box (89).

9. A cold heading machine for automatically calibrating punches according to claim 8, characterized in that, The circumferential surface of the gear (82) meshes with the side surface of the rack (84), and the top of the collection box (89) is located below the inclined groove (87).

10. A cold heading machine for automatically calibrating punches according to claim 9, characterized in that, The number of the rotating shaft (81), rack (84) and push plate (86) is set to two, and they are symmetrical to each other along the vertical central axis of the moving box (4). The initial state of the buffer spring (810) is relaxed.

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