A quick cold heading forming machine for a pin

Abstract

The utility model relates to cold heading forming machine technical field, concretely is a kind of pin shaft quick cold heading forming machine, including workbench, hydraulic drive mechanism, die holder and rotating mechanism are equipped on the workbench, die holder is equipped with splicing mechanism, the splicing mechanism includes T-shaped groove and die body, T-shaped groove is opened in the one side top end of die holder, T-shaped block is equipped between the die body and the T-shaped groove, fastening groove is opened between the other side of T-shaped groove and die holder, the top end of T-shaped block is opened with inclined slot, the output end of rotating mechanism is equipped with screw rod, the structure is rotated by driving screw rod, and make inclined plate linearly move, and make it accurate and abut in the inclined groove part of die body T-shaped block, utilize the downward pressure of inclined surface and generate, die is firmly locked on die holder, by controlling rotating mechanism positive and negative rotation drive screw rod, the quick assembly and disassembly of die body can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of cold heading forming machines, specifically a pin shaft rapid cold heading forming machine. Background Technology

[0002] As is well known, in the cold heading process of traditional pin-type parts, the mold, as one of the core components, directly affects the equipment's working efficiency and processing quality. Currently, common mold fixing methods mostly use bolt tightening or welding for connection. While these methods are structurally simple, they have many shortcomings in practical applications. First, regarding mold replacement, each replacement requires manual disassembly of the original bolts and retightening after the new mold is installed, a cumbersome and time-consuming process. Especially in production scenarios requiring frequent changes to different mold specifications, this inefficient operation severely restricts production pace and equipment utilization. Second, regarding installation reliability, traditional manual tightening methods are easily affected by the operator's experience and skill level, leading to inconsistent tightening force or even loosening, affecting the mold's stability during stamping, and potentially causing product dimensional deviations or surface quality problems. Existing mold structures often lack versatility and modular design, making it difficult to adapt to the production needs of diverse products. Therefore, it is necessary to propose solutions to this technical problem. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a rapid cold heading machine for pin shafts.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid cold heading forming machine for pin shafts, comprising a worktable, a hydraulic drive mechanism, a mold base, and a rotating mechanism on the worktable, a splicing mechanism on the mold base, the splicing mechanism comprising a T-slot and a mold body, the T-slot being formed at the top of one side of the mold base, a T-block being provided between the mold body and the T-slot, a fastening groove being formed between the T-slot and the other side of the mold base, a slanted groove being formed at the top of the T-block, a lead screw being provided at the output end of the rotating mechanism, a U-shaped plate being provided on the lead screw, a screw hole being formed on the U-shaped plate, the lead screw passing through the screw hole, a slanted plate being provided at one end of the U-shaped plate, the slanted plate abutting against the slanted groove, a stamping plate being provided on the hydraulic drive mechanism, a stamping head being provided on the stamping plate, and multiple splicing mechanisms being provided, the number of stamping heads and the number of slanted plates being the same as the number of splicing mechanisms.

[0007] Furthermore, the present invention is improved in that the top of the workbench is provided with a sliding groove, and the bottom of the U-shaped plate is provided with a slider, the slider being slidably connected to the sliding groove.

[0008] Furthermore, the present invention is improved by providing a pressure sensor at the bottom end of the T-shaped groove.

[0009] Furthermore, the present invention is improved in that a heating cavity is provided inside the mold base, the heating cavity is located below the T-shaped groove, and a heating rod is provided on the heating cavity.

[0010] Furthermore, the present invention is improved in that the inclination angle of the inclined groove and the inclined plate is between 15 and 45 degrees.

[0011] Furthermore, an improvement of this utility model is that the rotating mechanism is a servo motor.

[0012] Furthermore, the present invention is improved in that both the groove and the slider are T-shaped or I-shaped.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a rapid cold heading forming machine for pins, which has the following beneficial effects:

[0015] This pin-driven rapid cold heading forming machine employs a positioning structure with a T-block and T-slot combination. This allows the mold body to be quickly aligned and inserted into the designated position on the mold base, achieving rapid positioning and initial assembly. When the rotating mechanism drives the lead screw to rotate, the U-shaped plate moves in a straight line, causing the inclined plate to move synchronously and accurately abut against the inclined groove of the T-block on the mold body. Utilizing the interaction force between the inclined surfaces, a downward clamping force is generated, thereby firmly locking the mold onto the mold base. This design not only offers fast response but also provides uniform and reliable clamping force, greatly improving the stability of mold installation.

[0016] When changing molds, simply reverse the rotation mechanism to disengage the inclined plate from the inclined groove, releasing the clamping state of the mold body. Then, the T-block and mold body can be easily removed, enabling quick mold replacement. The entire process requires no tools and no manual disassembly of bolts, greatly improving mold changing efficiency. It is particularly suitable for flexible production modes with multiple varieties and small batches. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0019] Figure 3 This is a front half-sectional view of the structure of this utility model;

[0020] Figure 4 This is a top half-sectional view of the structure of this utility model.

[0021] In the diagram: 1. Workbench; 2. Hydraulic drive mechanism; 3. Mold base; 4. Rotating mechanism; 5. T-slot; 6. Mold body; 7. T-block; 8. Fastening groove; 9. Lead screw; 10. U-shaped plate; 11. Inclined plate; 12. Stamping plate; 13. Stamping head; 14. Slide groove; 15. Slider; 16. Pressure sensor; 17. Heating rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4This utility model relates to a rapid cold heading forming machine for pin shafts, comprising a worktable 1, a hydraulic drive mechanism 2, a mold base 3, and a rotating mechanism 4 on the worktable 1. The mold base 3 is equipped with a splicing mechanism, which includes a T-slot 5 and a mold body 6. The T-slot 5 is located at the top of one side of the mold base 3. A T-block 7 is provided between the mold body 6 and the T-slot 5. A fastening groove 8 is provided between the T-slot 5 and the other side of the mold base 3. An inclined groove is provided at the top of the T-block 7. A lead screw 9 is provided at the output end of the rotating mechanism 4, and a U-shaped plate 10 is provided on the lead screw 9. A screw hole is provided on the plate 10, through which the lead screw 9 passes. One end of the U-shaped plate 10 is provided with a sloping plate 11, which abuts against the inclined groove. A stamping plate 12 is provided on the hydraulic drive mechanism 2, and a stamping head 13 is provided on the stamping plate 12. Multiple splicing mechanisms are provided, and the number of stamping heads 13 and sloping plates 11 is the same as the number of splicing mechanisms. In this embodiment, the mold body 6 is welded into a whole by T-blocks 7, or other fixed installation methods can be used. Then, the mold body 6 is inserted into the T-groove 5 through the T-blocks 7, thereby quickly assembling the mold onto the T-groove 5. The splicing mechanism enables the mold base 3 to store multiple mold bodies 6. By controlling the output end of the rotating motor to rotate the lead screw 9, which passes through the screw hole of the U-shaped plate 10, the U-shaped plate 10 can be limited and slide linearly through the worktable 1. The U-shaped plate 10 drives the inclined plates 11 to move linearly. Since the number of inclined plates 11 is the same as the number of splicing mechanisms, multiple inclined plates 11 can move to the fastening groove 8 in the aligned splicing mechanism and abut against the inclined groove opened on the T-shaped block 7. The inclined groove and the inclination angle of the inclined plates 11 generate downward pressure, which can firmly and reliably fix the T-shaped block 7 in the T-shaped groove 5. The number of punch heads 13 With the same number of splicing mechanisms, the stamping plate 12 can be moved by the hydraulic drive mechanism 2, so that multiple stamping heads 13 and the corresponding mold bodies 6 in the splicing mechanism can perform cold heading stamping on the workpiece. When changing the mold body 6 of different workpiece types and sizes, the output end of the rotating mechanism 4 can be controlled to rotate the lead screw 9 in the opposite direction, so that the inclined plate 11 can be removed from the inclined groove, and then the T-block 7 can be quickly removed to quickly replace the mold body 6. It can realize the quick assembly and replacement of the mold body 6 without the need for manual fastening installation. It is convenient to use and can be quickly installed and used, solving the problem of insufficient fastening force when manually installed.

[0024] To improve the linear movement stability of the U-shaped plate 10, in this design, a groove 14 is provided at the top of the workbench 1, and a slider 15 is provided at the bottom of the U-shaped plate 10. The slider 15 is slidably connected to the groove 14. By allowing the slider 15 of the U-shaped plate 10 to slide linearly in the groove 14 of the workbench 1, the linear movement stability of the U-shaped plate 10 can be further improved, thereby improving the movement stability of the inclined plate 11.

[0025] In order to facilitate the detection of the fixing firmness of the T-block 7 in the T-groove 5, in this solution, a pressure sensor 16 is provided at the bottom end of the T-groove 5. By installing the pressure sensor 16 at the bottom end of the T-groove 5, the fixing pressure value of the T-block 7 in the T-groove 5 can be detected in real time, and the tightening force of the T-block 7 can be adjusted according to the value.

[0026] To reduce forming resistance, in this design, a heating chamber is provided inside the mold base 3, located below the T-shaped groove 5. A heating rod 17 is provided on the heating chamber. By setting a heating chamber inside the mold base 3 and installing a heating rod 17 therein, the mold can be locally heated in a controllable manner during the cold heading process, thereby improving the plastic deformation ability of the metal material, reducing forming resistance, and reducing mold wear and the risk of workpiece cracking.

[0027] To ensure the stability of pressing down on the T-block 7, in this design, the inclination angle of the inclined groove and the inclined plate 11 is between 15 and 45 degrees, which can achieve the best mechanical transmission efficiency and further ensure the stability of pressing down on the T-block 7.

[0028] In order to improve the accuracy of the rotation of the lead screw 9, in this solution, the rotation mechanism 4 is a servo motor, which can realize high-precision control of the rotation of the lead screw 9, thereby accurately adjusting the displacement distance and speed of the U-shaped plate 10.

[0029] To improve the smoothness of the movement of the U-shaped plate 10, in this design, both the slide groove 14 and the slider 15 are T-shaped or I-shaped structures, which can significantly improve the guiding stability and load-bearing capacity of the U-shaped plate 10 during movement, effectively prevent problems such as offset and shaking during sliding, thereby ensuring the uniformity of force transmission and the reliability of action when the inclined plate 11 pushes the T-shaped block 7, and further improving the safety and service life of the equipment.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid cold heading forming machine for pins, characterized in that, The system includes a workbench (1), on which a hydraulic drive mechanism (2), a mold base (3), and a rotating mechanism (4) are provided. The mold base (3) is equipped with a splicing mechanism, which includes a T-slot (5) and a mold body (6). The T-slot (5) is located at the top of one side of the mold base (3). A T-block (7) is located between the mold body (6) and the T-slot (5). A fastening groove (8) is located between the T-slot (5) and the other side of the mold base (3). An inclined groove is located at the top of the T-block (7). The output end of the rotating mechanism (4) is provided with a lead screw (9), and a U-shaped plate (10) is provided on the lead screw (9). A screw hole is opened on the U-shaped plate (10), and the lead screw (9) passes through the screw hole. One end of the U-shaped plate (10) is provided with an inclined plate (11), and the inclined plate (11) abuts against the inclined groove. The hydraulic drive mechanism (2) is provided with a stamping plate (12), and a stamping head (13) is provided on the stamping plate (12). There are multiple splicing mechanisms, and the number of stamping heads (13) and inclined plates (11) is the same as the number of splicing mechanisms.

2. The pin shaft rapid cold heading forming machine according to claim 1, characterized in that, The top of the workbench (1) is provided with a slide groove (14), and the bottom of the U-shaped plate (10) is provided with a slider (15), which is slidably connected to the slide groove (14).

3. The pin shaft rapid cold heading forming machine according to claim 1, characterized in that, A pressure sensor (16) is provided at the bottom of the T-groove (5).

4. The pin shaft rapid cold heading forming machine according to claim 1, characterized in that, The mold base (3) has a heating chamber inside, which is located below the T-shaped groove (5), and a heating rod (17) is provided on the heating chamber.

5. A rapid cold heading forming machine for pins according to claim 1, characterized in that, The inclination angle of the sloping groove and the inclined plate (11) is between 15 and 45 degrees.

6. A rapid cold heading forming machine for pins according to claim 1, characterized in that, The rotating mechanism (4) is a servo motor.

7. A rapid cold heading forming machine for pins according to claim 2, characterized in that, Both the groove (14) and the slider (15) are T-shaped or I-shaped.

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