A cold heading device of a bolt forming machine

Abstract

The utility model discloses a cold heading device of bolt forming machine relates to cold heading device technical field of bolt forming machine, including fixed base and shock attenuation cold heading assembly, the back of fixed base top end is fixedly connected with shock attenuation cold heading assembly, shock attenuation cold heading assembly includes the support plate fixedly connected in the back of fixed base top end, the top fixedly connected with fixed plate at the front of support plate, the middle part fixedly connected with the protection column of fixed plate top, the inside fixedly connected with hydraulic rod body of protection column, the bottom fixedly connected with the damper telescopic ware of hydraulic rod body, the bottom fixedly connected with cold heading plate of damper telescopic ware, the utility model discloses through the setting of shock attenuation cold heading assembly, when personnel operating device uses, hydraulic rod body promotes the cold heading plate downlink and carries out cold heading operation, and damper telescopic ware can buffer the vibration of cold heading generation, reduces the influence of vibration to device component, avoids the bolt forming precision decline due to loosening.

Description

Technical Field

[0001] This utility model relates to the technical field of cold heading device for bolt forming machines, specifically a cold heading device for bolt forming machines. Background Technology

[0002] In the mass production of bolts, cold heading is widely used because it can improve bolt strength and material utilization. As the core equipment for realizing this process, the stability and degree of automation of the cold heading device directly affect production efficiency and product quality.

[0003] When using the cold heading device of the existing bolt forming machine,

[0004] (1) The strong vibrations generated during cold heading can easily cause the components of the device to loosen, affecting the bolt forming accuracy;

[0005] (2) The bolt blanks after cold heading need to be manually demolded, which not only increases labor intensity but also reduces production efficiency.

[0006] To address the above problems, this utility model provides a cold heading device for a bolt forming machine. Utility Model Content

[0007] The purpose of this invention is to provide a cold heading device for a bolt forming machine. This invention has the beneficial effects of shock absorption and anti-loosening, and automatic demolding, thereby solving the problems of vibration affecting accuracy and low efficiency of manual demolding during cold heading of existing devices.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a cold heading device for a bolt forming machine, comprising a fixed base and a shock-absorbing cold heading assembly, wherein the shock-absorbing cold heading assembly is fixedly connected to the back of the top of the fixed base, and the shock-absorbing cold heading assembly comprises a support plate fixedly connected to the back of the top of the fixed base.

[0009] A fixing plate is fixedly connected to the top of the front of the support plate, a protective column is fixedly connected to the middle of the top of the fixing plate, a hydraulic rod body is fixedly connected inside the protective column, a damping expansion joint is fixedly connected to the bottom of the hydraulic rod body, and a cold heading plate is fixedly connected to the bottom of the damping expansion joint.

[0010] Furthermore, an automatic demolding assembly is fixedly connected to the middle of the top of the fixed base. The automatic demolding assembly includes a U-shaped frame fixedly connected to the middle of the top of the fixed base. A mold plate is fixedly connected to the top of the inner wall of the U-shaped frame. A mold groove is opened in the middle of the top of the mold plate, so that the U-shaped frame provides stable support for the mold plate and the mold groove on the mold plate provides forming space for cold heading of bolts.

[0011] Furthermore, a motor box is fixedly connected to the inner bottom wall of the U-shaped frame, and a servo motor is fixedly connected inside the motor box. This achieves the purpose of protecting the servo motor from the motor box, while the servo motor provides power for automatic demolding.

[0012] Furthermore, a transmission rod is fixedly connected to the output end of the servo motor, and a threaded rod is fixedly connected to the top end of the transmission rod, so that the transmission rod transmits the power of the servo motor to the threaded rod, and the threaded rod realizes the power conversion through rotation.

[0013] Furthermore, a connecting rod is threaded to the top of the threaded rod, and a demolding template is fixedly connected to the top of the connecting rod. The demolding template is slidably connected to the inner wall of the mold groove, so that the rotation of the threaded rod drives the connecting rod to move up and down, and the connecting rod drives the demolding template to slide in the mold groove, thereby realizing the automatic demolding of the bolt blank.

[0014] Furthermore, connecting plates are fixedly connected to the bottom ends of both sides of the U-shaped frame, and handles are fixedly connected to the middle of the top of the connecting plates, so that the connecting plates provide installation positions for the handles, and the handles facilitate personnel to move or adjust the automatic demolding components.

[0015] Furthermore, support rods are fixedly connected to the four corners of the bottom of the fixed base, and anti-slip circular plates are fixedly connected to the bottom of the support rods. This achieves the effect of the support rods supporting the fixed base, and the anti-slip circular plates increasing the friction with the ground and improving the overall stability of the device.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model provides a cold heading device for a bolt forming machine.

[0018] (1) By setting up the shock-absorbing cold heading assembly, when the personnel operate the device, the hydraulic rod body pushes the cold heading plate downward to carry out cold heading operation. The damping expansion joint can buffer the vibration generated by cold heading, reduce the impact of vibration on the device components, and avoid the decrease in bolt forming accuracy due to loosening.

[0019] (2) By setting up the automatic demolding component, when the manual operation device is used, after the cold heading is completed, the servo motor drives the threaded rod to rotate through the transmission rod. The threaded rod drives the connecting rod and the demolding plate to move upward, pushing out the bolt blank in the mold slot, realizing automatic demolding, reducing the intensity of manual labor and improving production efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the device of this utility model;

[0021] Figure 2 This is a schematic diagram of the shock-absorbing cold heading assembly structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the automatic demolding component of this utility model;

[0023] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0024] Figure 5 This is a front view schematic diagram of the present utility model.

[0025] In the diagram: 1. Fixed base; 2. Shock-absorbing cold heading assembly; 201. Support plate; 202. Fixed plate; 203. Protective column; 204. Hydraulic rod body; 205. Damping expansion joint; 206. Cold heading plate; 3. Automatic demolding assembly; 301. U-shaped frame; 302. Mold plate; 303. Motor box; 304. Servo motor; 305. Transmission rod; 306. Threaded rod; 307. Connecting rod; 308. Demolding plate; 309. Connecting plate; 310. Handle; 4. Support rod; 5. Anti-slip round plate. Detailed Implementation

[0026] 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.

[0027] To solve the problem of how to effectively position and adjust the technology, such as Figure 1-5 As shown, the following preferred technical solutions are provided:

[0028] A cold heading device for a bolt forming machine includes a fixed base 1 and a shock-absorbing cold heading assembly 2. The shock-absorbing cold heading assembly 2 is fixedly connected to the back of the top of the fixed base 1. With the setting of the shock-absorbing cold heading assembly 2, when the device is operated by personnel, the hydraulic rod body 204 pushes the cold heading plate 206 downward to perform cold heading operation. The damping expansion joint 205 can buffer the vibration generated by cold heading, reduce the impact of vibration on the device components, and avoid the decrease in bolt forming accuracy due to loosening. The shock-absorbing cold heading assembly 2 includes a support plate 201 fixedly connected to the back of the top of the fixed base 1.

[0029] A fixing plate 202 is fixedly connected to the top of the front of the support plate 201. A protective column 203 is fixedly connected to the middle of the top of the fixing plate 202. A hydraulic rod body 204 is fixedly connected inside the protective column 203. A damping expansion joint 205 is fixedly connected to the bottom of the hydraulic rod body 204. A cold heading plate 206 is fixedly connected to the bottom of the damping expansion joint 205.

[0030] Specifically, when operating the device, the operator first checks whether the connections of each component are secure, and then places the metal blank to be processed into the mold groove of the mold plate 302. After starting the equipment, the hydraulic rod body 204 pushes the damping expansion joint 205 and the cold heading plate 206 downwards. The cold heading plate 206 cold-heads the blank, and the damping expansion joint 205 buffers the vibration during the process. After the cold heading is completed, the formed blank is ejected by the automatic demolding component 3, completing one processing cycle.

[0031] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0032] An automatic demolding assembly 3 is fixedly connected to the middle of the top of the fixed base 1. The automatic demolding assembly 3 includes a U-shaped frame 301 fixedly connected to the middle of the top of the fixed base 1. A mold plate 302 is fixedly connected to the top of the inner wall of the U-shaped frame 301. A mold groove is opened in the middle of the top of the mold plate 302. The purpose of this design is that the U-shaped frame 301 provides a stable installation base for the mold plate 302, ensuring that the mold plate 302 does not shake during cold heading. The mold groove cooperates with the cold heading plate 206 to provide a forming cavity for the bolt blank, ensuring that the cold heading shape meets the specifications.

[0033] Furthermore, such as Figure 4 As shown, the following preferred technical solutions are provided:

[0034] The inner bottom wall of the U-shaped frame 301 is fixedly connected to a motor box 303, and a servo motor 304 is fixedly connected inside the motor box 303. The purpose of this design is to isolate the servo motor 304 from the external environment by the motor box 303, so as to prevent debris or vibration during cold heading from affecting the operation of the motor. The servo motor 304 provides stable power output and provides precise driving force for automatic demolding.

[0035] Furthermore, such as Figure 4 As shown, the following preferred technical solutions are provided:

[0036] The output end of the servo motor 304 is fixedly connected to the transmission rod 305, and the top end of the transmission rod 305 is fixedly connected to the threaded rod 306. The purpose of this design is to transmit the rotational motion of the servo motor 304 to the threaded rod 306 to realize the longitudinal transmission of power; the threaded rod 306 converts the circular motion into linear motion through rotation, providing lifting power for the demolding mechanism.

[0037] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0038] The top of the threaded rod 306 is threadedly connected to a connecting rod 307, and the top of the connecting rod 307 is fixedly connected to a demolding template 308. The demolding template 308 is slidably connected to the inner wall of the mold groove. The purpose of this design is that when the threaded rod 306 rotates, the threaded engagement drives the connecting rod 307 to move up and down, thereby driving the demolding template 308 to slide in the mold groove. The demolding template 308 fits against the inner wall of the mold groove to ensure that the cold-forged bolt blank can be smoothly ejected, realizing automatic demolding.

[0039] Furthermore, such as Figure 3 As shown, the following preferred technical solutions are provided:

[0040] Connecting plates 309 are fixedly connected to the bottom of both sides of the U-shaped frame 301, and handles 310 are fixedly connected to the middle of the top of the connecting plates 309. The purpose of this design is to enhance the connection stability between the U-shaped frame 301 and the fixed base 1. The handles 310 facilitate the operator to move or fine-tune the position of the automatic demolding component 3, thereby improving the ease of operation.

[0041] Furthermore, such as Figure 1 As shown, the following preferred technical solutions are provided:

[0042] Support rods 4 are fixedly connected to the four corners of the bottom of the fixed base 1. Anti-slip circular plates 5 are fixedly connected to the bottom of the support rods 4. The purpose of this design is that the support rods 4 support the fixed base 1 and the entire device, raising the height of the device for easy operation. The anti-slip circular plates 5 increase the contact area and friction with the ground, preventing the device from shifting due to vibration during cold forging operations and improving overall stability.

[0043] Working principle: The cold heading device of this bolt forming machine is fixed as a whole by the fixed seat 1. The support rod 4 and the anti-slip circular plate 5 ensure the stable placement of the device. During operation, the operator puts the metal billet into the mold groove of the mold plate 302. The hydraulic rod body 204 in the shock-absorbing cold heading assembly 2 extends, pushing the damping expansion joint 205 and the cold heading plate 206 downward. The cold heading plate 206 applies pressure to the billet to form it in the mold groove. The damping expansion joint 205 buffers the vibration generated by cold heading and prevents the parts from loosening. After cold heading is completed, the automatic demolding assembly 3 is started: the servo motor 304 drives the threaded rod 306 to rotate through the transmission rod 305. The threaded rod 306 drives the connecting rod 307 and the demolding plate 308 to move upward, pushing out the formed bolt billet in the mold groove to achieve automatic demolding. The connecting plate 309 and the handle 310 facilitate the adjustment of the assembly. All parts work together to efficiently complete the bolt cold heading forming and demolding process.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] 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 cold heading device for a bolt forming machine, comprising a fixed base (1) and a shock-absorbing cold heading assembly (2), characterized in that: A shock-absorbing cold heading assembly (2) is fixedly connected to the back of the top of the fixed base (1). The shock-absorbing cold heading assembly (2) includes a support plate (201) fixedly connected to the back of the top of the fixed base (1). A fixing plate (202) is fixedly connected to the top of the front of the support plate (201). A protective column (203) is fixedly connected to the middle of the top of the fixing plate (202). A hydraulic rod body (204) is fixedly connected inside the protective column (203). A damping expansion joint (205) is fixedly connected to the bottom of the hydraulic rod body (204). A cold heading plate (206) is fixedly connected to the bottom of the damping expansion joint (205).

2. The cold heading device for a bolt forming machine according to claim 1, characterized in that: An automatic demolding assembly (3) is fixedly connected to the middle of the top of the fixed base (1). The automatic demolding assembly (3) includes a U-shaped frame (301) fixedly connected to the middle of the top of the fixed base (1). A mold plate (302) is fixedly connected to the top of the inner wall of the U-shaped frame (301). A mold groove is opened in the middle of the top of the mold plate (302).

3. The cold heading device for a bolt forming machine according to claim 2, characterized in that: The inner bottom wall of the U-shaped frame (301) is fixedly connected to a motor box (303), and a servo motor (304) is fixedly connected inside the motor box (303).

4. The cold heading device for a bolt forming machine according to claim 3, characterized in that: The output end of the servo motor (304) is fixedly connected to a transmission rod (305), and the top end of the transmission rod (305) is fixedly connected to a threaded rod (306).

5. The cold heading device for a bolt forming machine according to claim 4, characterized in that: The top end of the threaded rod (306) is threadedly connected to a connecting rod (307), and the top end of the connecting rod (307) is fixedly connected to a stripping template (308), which is slidably connected to the inner wall of the mold groove.

6. The cold heading device for a bolt forming machine according to claim 2, characterized in that: The bottom ends of both sides of the U-shaped frame (301) are fixedly connected to connecting plates (309), and the top center of the connecting plates (309) is fixedly connected to handles (310).

7. The cold heading device for a bolt forming machine according to claim 1, characterized in that: Support rods (4) are fixedly connected to the four corners of the bottom of the fixed base (1), and anti-slip circular plates (5) are fixedly connected to the bottom of the support rods (4).

Images