Passenger car tooth-shaped bolt groove rolling and thread rolling die plate cooling die

Abstract

The utility model provides a passenger car tooth-shaped bolt groove and thread rolling tooth plate cooling die, which relates to the technical field of tooth plate dies, and comprises a static plate, a movable plate and a groove and thread rolling assembly. When the die works, the movable plate moves relative to the static plate, a to-be-processed bolt blank is arranged between tooth grooves of the static plate and the movable plate, and the groove and thread rolling assembly is arranged between the static plate and the movable plate; in the cooling assembly, a first water pump pumps cooling liquid in a cooling liquid tank into a flow guide pipe, the cooling liquid circularly flows in the mold to absorb heat generated during working of the mold, and meanwhile, the cooling liquid is cooled to the lower end of the mold, so that the cooling liquid is cooled to the lower end of the mold, and meanwhile, the cooling liquid is cooled to the lower end of the mold. The arc-shaped ventilation grooves promote air circulation and accelerate heat dissipation of the mold, the heat conduction plates conduct heat in the mold to the heat dissipation fins, the heat dissipation area is increased, the heat dissipation effect is enhanced, efficient cooling of the mold is achieved, and stable production of the tooth-shaped bolt and the service life of the mold are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooth plate mould technical field especially, relates to a kind of passenger car toothed bolt grooving thread rolling tooth plate cooling mould. BACKGROUND

[0002] Traditional passenger car toothed bolt grooving thread rolling tooth plate exists low heat conduction efficiency, temperature unevenness etc. during cooling process, leading to machining precision and production efficiency are influenced, to solve this problem, a new cooling mould design is developed, the heat management effect of mould is improved by optimizing cooling channel layout and the selection of cooling medium, the stability and precision in machining process are significantly improved.

[0003] However, in actual use, there are still the following deficiencies, such as: the existing passenger car toothed bolt grooving thread rolling tooth plate mould cannot guarantee the stable production of toothed bolt and the service life of the mould, during the grooving thread rolling process, the tooth plate and the bolt blank rub violently to generate a large amount of heat, the existing mould is insufficiently cooled, the tooth plate temperature rises to cause thermal expansion, changes the relative position relationship between the tooth plate and the bolt, makes the size of the rolled bolt thread and groove deviate from the design requirement, due to uneven cooling and poor lubrication conditions, the tooth plate wears out after long time work, the surface roughness of the worn tooth plate increases, and scratches, pits and other defects are left on the bolt surface during thread rolling, which destroys the integrity and smoothness of the bolt surface, these surface defects not only affect the appearance quality of the bolt, but also reduce its corrosion resistance, because the rough surface is more prone to accumulate water, oil stains and other corrosive substances, which accelerates the rusting and corrosion of the bolt.

[0004] Therefore, the utility model provides a kind of passenger car toothed bolt grooving thread rolling tooth plate cooling mould to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a passenger car toothed bolt grooving thread rolling tooth plate cooling mould.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a passenger car toothed bolt grooving thread rolling tooth plate cooling mould, comprising a static plate and a dynamic plate, further comprising:

[0007] The grooving thread rolling assembly comprises a tooth groove formed in the static plate and the dynamic plate, and a nitrogen-aluminum-titanium coating is arranged on the tooth groove.

[0008] The cooling assembly comprises an arc-shaped ventilation groove opened on the static plate, a heat conduction plate arranged in the static plate, heat dissipation fins arranged on one side of the static plate close to the top of the heat conduction plate, a cooling liquid tank connected to the static plate, and a flow guide pipe arranged in the static plate and connected to the cooling liquid tank, wherein a first water pump is mounted on the cooling liquid tank, and the flow guide pipe is arranged on the output end of the first water pump.

[0009] Further, the static plate and the dynamic plate are both provided with the cooling assembly.

[0010] The beneficial effects of the above further scheme are that the static plate and the dynamic plate are both provided with the cooling assembly, so that the overall temperature of the mold can be uniformly controlled, and the cooling assembly arranged on the static plate and the dynamic plate can avoid local thermal deformation caused by insufficient unilateral cooling, thereby maintaining the stability of the mold and improving the wire twisting precision and service life.

[0011] Further, the static plate and the dynamic plate are both provided with the lubricating liquid spraying assembly, and the lubricating liquid spraying assembly comprises a lubricating liquid tank connected to the static plate.

[0012] The beneficial effects of the above further scheme are that the static plate and the dynamic plate are both provided with the lubricating liquid spraying assembly, so that the tooth grooves can be continuously lubricated during the wire twisting process.

[0013] Further, a second water pump is mounted on the lubricating liquid tank, a drainage pipe is connected to the lubricating liquid tank, and the drainage pipe is arranged on the output end of the second water pump.

[0014] The beneficial effects of the above further scheme are that the lubricating liquid tank on the mold delivers the lubricating liquid to the spray head through the second water pump, so that the spray head sprays the lubricating liquid on the tooth grooves of the static plate and the dynamic plate.

[0015] Further, a spray head is arranged at the end of the drainage pipe away from the lubricating liquid tank.

[0016] The beneficial effects of the above further scheme are that the drainage pipe serves as a delivery channel to guide the lubricating liquid output by the second water pump to the spray head, and the spray head disperses the lubricating liquid into fine droplets and sprays the lubricating liquid on the surface of the tooth grooves of the static plate and the dynamic plate.

[0017] Further, buckles are connected to the static plate and the dynamic plate, and the drainage pipe is arranged in the buckle.

[0018] The beneficial effects of the above further scheme are that the buckle is made of elastic material and has a certain opening degree and clamping force, and during installation, the drainage pipe is clamped into the opening of the buckle, and the elastic structure of the buckle tightly holds the drainage pipe to prevent displacement or shaking of the drainage pipe during work.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are that

[0020] In the utility model, when the mold works, the moving plate moves relative to the static plate, the bolt blank to be processed is arranged between the tooth groove of the static plate and the moving plate, the nitrogen-aluminum-titanium coating on the tooth groove reduces the friction and abrasion between the blank and the tooth groove through high hardness and low friction coefficient, the tooth groove precisely grooves and threads the blank, in the cooling assembly, the first water pump pumps the coolant in the coolant tank into the flow guide pipe, the coolant circulates in the mold, absorbs the heat generated by the mold working, at the same time, the arc-shaped ventilation groove promotes air circulation and accelerates heat dissipation of the mold, the heat conduction plate conducts the heat in the mold to the heat dissipation fins, increases the heat dissipation area and strengthens the heat dissipation effect, realizes efficient cooling of the mold and guarantees stable production of the toothed bolt and service life of the mold. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure schematic view of the toothed bolt grooving and threading tooth plate cooling mold for passenger cars of the utility model;

[0022] Figure 2 It is a structure schematic view of the toothed bolt grooving and threading tooth plate cooling mold for passenger cars of the utility model;

[0023] Figure 3 It is a structure schematic view of the toothed bolt grooving and threading tooth plate cooling mold for passenger cars of the utility model;

[0024] Figure 4 It is a structure schematic view of the toothed bolt grooving and threading tooth plate cooling mold for passenger cars of the utility model.

[0025] Reference signs:

[0026] 1, static plate; 2, moving plate;

[0027] 3, grooving and threading assembly; 31, tooth groove; 32, nitrogen-aluminum-titanium coating;

[0028] 4, cooling assembly; 41, arc-shaped ventilation groove; 42, heat conduction plate; 43, heat dissipation fin; 44, coolant tank; 45, flow guide pipe; 46, first water pump;

[0029] 5, lubricating liquid spraying assembly; 51, lubricating liquid tank; 52, second water pump; 53, drainage pipe; 54, spray head; 55, buckle. DETAILED DESCRIPTION

[0030] Clearly, the described embodiments are merely a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0031] As shown in Figures 1-4 , the present embodiment provides a technical scheme: a passenger car tooth-shaped bolt grooving and wire drawing die, comprising a static plate 1 and a dynamic plate 2, further comprising:

[0032] A grooving and wire drawing assembly 3 is arranged on the static plate 1 and the dynamic plate 2, and the grooving and wire drawing assembly 3 comprises a tooth groove 31, and the tooth groove 31 is provided with a nitrogen-aluminum-titanium coating 32;

[0033] A cooling assembly 4 is arranged on the static plate 1, and the cooling assembly 4 comprises an arc-shaped ventilation groove 41, a heat conduction plate 42 is arranged in the static plate 1, a heat dissipation fin 43 is arranged on one side of the static plate 1 close to the top of the heat conduction plate 42, a cooling liquid tank 44 is connected to the static plate 1, a flow guide pipe 45 is arranged in the static plate 1, the flow guide pipe 45 is connected to the cooling liquid tank 44, a first water pump 46 is installed on the cooling liquid tank 44, and the flow guide pipe 45 is arranged on the output end of the first water pump 46. During the operation of the die, the dynamic plate 2 moves relative to the static plate 1, and the bolt blank to be processed is arranged between the tooth grooves 31 of the static plate 1 and the dynamic plate 2. The nitrogen-aluminum-titanium coating 32 on the tooth groove 31 reduces the friction and wear between the blank and the tooth groove 31 through high hardness and low friction coefficient, so that the tooth groove 31 can accurately grooving and wire drawing forming the blank. In the cooling assembly 4, the first water pump 46 pumps the cooling liquid in the cooling liquid tank 44 into the flow guide pipe 45, and the cooling liquid circulates in the die to absorb the heat generated during the operation of the die. At the same time, the arc-shaped ventilation groove 41 promotes air circulation and accelerates heat dissipation of the die. The heat conduction plate 42 conducts the heat inside the die to the heat dissipation fin 43, increases the heat dissipation area, and strengthens the heat dissipation effect, so as to realize efficient cooling of the die and ensure stable production of the tooth-shaped bolt and service life of the die.

[0034] In the above scheme, there is also a situation of grooving and wire drawing operation on the workpiece, which cannot meet the continuous lubrication of the tooth groove 31 during the wire drawing process, as shown in Figure 1 : The static plate 1 and the dynamic plate 2 are both provided with a cooling assembly 4, and the static plate 1 and the dynamic plate 2 are both provided with a cooling assembly 4, which can ensure uniform temperature control of the whole die. The cooling assembly 4 arranged on the static plate 1 and the dynamic plate 2 can avoid local thermal deformation caused by insufficient cooling on one side, maintain the stability of the die, and improve the wire drawing precision and service life;

[0035] As shown in Figure 1 and Figure 4As shown, both the stationary plate 1 and the moving plate 2 are equipped with lubricating fluid spraying assemblies 5. Each lubricating fluid spraying assembly 5 includes a lubricating fluid tank 51 connected to the stationary plate 1. The lubricating fluid spraying assembly 5 ensures continuous lubrication of the thread grooves 31 during the thread rolling process. A second water pump 52 is installed on the lubricating fluid tank 51, and a drain pipe 53 is connected to the lubricating fluid tank 51. The drain pipe 53 is located at the output end of the second water pump 52. The lubricating fluid tank 51 on the die delivers lubricating fluid to the nozzle 54 via the second water pump 52, causing the nozzle 54 to spray lubricating fluid onto the thread grooves 31 of the stationary plate 1 and the moving plate 2. A nozzle 54 is provided at the end away from the lubricant tank 51. The drain pipe 53 serves as a delivery channel, guiding the lubricant output by the second water pump 52 to the nozzle 54. The nozzle 54 disperses the lubricant into fine droplets and sprays them onto the surface of the grooves 31 of the stationary plate 1 and the moving plate 2. Both the stationary plate 1 and the moving plate 2 are connected to buckles 55. The drain pipe 53 is set inside the buckle 55. The buckle 55 is made of elastic material and has a certain degree of opening and closing and clamping force. During installation, the drain pipe 53 is inserted into the opening of the buckle 55. The elastic structure of the buckle 55 makes it hold the drain pipe 53 tightly, preventing it from shifting or shaking during operation.

[0036] like Figures 1-4 As shown, during mold operation, the moving plate 2 reciprocates linearly relative to the stationary plate 1. The bolt blank to be processed is placed in the groove 31 between the stationary plate 1 and the moving plate 2. The groove 31 on the stationary plate 1 and the moving plate 2 is the core part of thread rolling. The nitrogen-aluminum-titanium coating 32 on the surface of the groove 31 has high hardness and low coefficient of friction, which can reduce the friction and wear between the blank and the groove 31, ensuring that the groove 31 accurately grooves and rolls the blank. As the thread rolling process continues, the mold will generate a lot of heat due to friction. Since cooling components 4 are provided on both the stationary plate 1 and the moving plate 2, the overall temperature of the mold is ensured to be uniform. The arc-shaped ventilation groove 41 on the mold promotes air circulation and accelerates heat dissipation. The internal heat-conducting plate 42 conducts heat to the heat dissipation device. Fins 43 increase the heat dissipation area and enhance heat dissipation. The first water pump 46 pumps the coolant in the coolant tank 44 into the guide pipe 45. The coolant circulates in the mold, absorbing the heat generated by the mold operation, achieving efficient cooling and ensuring the mold's precision and lifespan. In the lubricant spray assembly 5, the lubricant spray assembly 5 on the stationary plate 1 and the moving plate 2 ensures continuous lubrication of the thread groove 31 during the thread rolling process. The lubricant tank 51 delivers the lubricant to the guide pipe 53 through the second water pump 52, and then the nozzle 54 sprays the lubricant onto the surface of the thread groove 31, reducing friction and mold wear. The buckle 55 is made of elastic material and can tightly hold the guide pipe 53 to prevent it from shifting or shaking during operation, ensuring the stability of the lubricant spray.

[0037] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields with equivalent changes, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still falls within the protection scope of the present application.

Claims

1. A cooling die for a toothed bolt slotting and threading die plate for a passenger car, comprising a static plate (1) and a dynamic plate (2), characterized in that, Also include: The grooving and threading assembly (3) comprises tooth grooves (31) opened on the static plate (1) and the dynamic plate (2), and the tooth grooves (31) are provided with a nitrogen aluminum titanium coating (32); The cooling assembly (4) comprises an arc-shaped ventilation groove (41) opened on the static plate (1), the static plate (1) is provided with a heat conduction plate (42), one side of the static plate (1) close to the top of the heat conduction plate (42) is provided with a heat dissipation fin (43), the static plate (1) is connected with a cooling liquid tank (44), the static plate (1) is provided with a flow guide pipe (45), the flow guide pipe (45) is connected to the cooling liquid tank (44), the cooling liquid tank (44) is installed with a first water pump (46), and the flow guide pipe (45) is arranged on the output end of the first water pump (46).

2. A cooling die for a toothed screw thread rolling die plate for a passenger vehicle toothed bolt according to claim 1, characterized in that: The static plate (1) and the dynamic plate (2) are provided with the cooling assembly (4).

3. A cooling die for a toothed screw thread rolling die plate for a passenger vehicle toothed bolt according to claim 1, characterized in that: The static plate (1) and the dynamic plate (2) are provided with the lubricating liquid spraying assembly (5), and the lubricating liquid spraying assembly (5) comprises a lubricating liquid tank (51) connected to the static plate (1).

4. A cooling die for a toothed screw thread rolling die plate for a passenger vehicle toothed bolt according to claim 3, characterized in that: The lubricating liquid tank (51) is installed with a second water pump (52), the lubricating liquid tank (51) is connected with a flow guide pipe (53), and the flow guide pipe (53) is arranged on the output end of the second water pump (52).

5. A cooling die for a toothed screw thread rolling die plate for a passenger vehicle toothed bolt according to claim 4, characterized in that: One end of the flow guide pipe (53) away from the lubricating liquid tank (51) is provided with a spray head (54).

6. A cooling die for a toothed screw thread rolling die plate for a passenger vehicle toothed bolt according to claim 4, characterized in that: The static plate (1) and the dynamic plate (2) are connected with buckles (55), and the flow guide pipe (53) is arranged in the buckle (55).

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