Cold heading device for fastener production

Abstract

The invention relates to the field of fastener machining, in particular to a cold heading device for fastener production, which comprises a mounting frame, a rotating table is rotatably connected to the top of the mounting frame, a hydraulic cylinder is mounted on the rotating table, the telescopic end of the hydraulic cylinder is slidably connected with the rotating table, and a cold heading assembly is mounted on the mounting frame. The outer side of the rotating table is connected with an annular first straight gear, the upper side of the rear portion of the mounting frame is connected with a driving motor, an output shaft of the driving motor is connected with a second straight gear, and the first straight gear is meshed with the second straight gear. The rotating table drives the first fixing plate to move, when the first fixing plate and the corresponding infrared sensor move to the same straight line, the first fixing plate correspondingly triggers the infrared sensor, and after the infrared sensor is triggered, the corresponding pressure applying assembly is automatically started; and at the moment, the cooling oil in the oil storage frame can enter the corresponding mold through the corresponding oil guide block, meanwhile, the overflowing cooling oil is automatically recycled, and material waste is avoided.

Description

Technical Field

[0001] The invention relates to the field of fastener processing, and in particular to a cold heading device used for fastener production. Background Art

[0002] Fasteners are a type of parts used to connect two or more objects to form a whole. They are widely used in various industries, such as automobiles, aerospace, construction, electronics, mechanical equipment, etc. When fasteners are produced, the initial materials need to be stamped according to the requirements. Generally, a cold heading device is used to complete this operation. It is carried out at room temperature. High pressure is applied to the metal blank through the mold to cause the metal to undergo plastic deformation, thereby forming the desired shape. The existing cold heading device has the following two problems during use: First, it is difficult to automatically provide an appropriate amount of cooling oil each time the stamping is performed to ensure the normal progress of the stamping; second, it is difficult to recycle the cooling oil overflowed during the stamping process.

[0003] Therefore, a cold heading device for fastener production is now developed to address the above problems. Summary of the invention

[0004] In order to overcome the disadvantages of the existing devices, the present invention provides a cold heading device for fastener production.

[0005] The technical implementation scheme of the present invention is: a cold heading device for fastener production, comprising a mounting frame, a rotating table rotatably connected to the top of the mounting frame, a hydraulic cylinder installed on the rotating table, the telescopic end of the hydraulic cylinder is slidably connected to the rotating table, the telescopic end of the hydraulic cylinder extends upward to push out the stamped material, a cold heading assembly is installed on the mounting frame, the cold heading assembly is used to stamp the material, a first annular spur gear is connected to the outer side of the rotating table, a drive motor is connected to the upper side of the rear part of the mounting frame, the output shaft of the drive motor is arranged upward, a second spur gear is connected to the output shaft of the drive motor, the first spur gear and the second spur gear are meshed with each other, and also includes: a cooling oil injection mechanism, the cooling oil injection mechanism is arranged on the mounting frame, the cooling oil injection mechanism is used to cool the material during stamping and forming; a recovery mechanism, the recovery mechanism is arranged on the rotating table and the mounting frame, the recovery mechanism is used to recover the overflowed cooling oil.

[0006] In a preferred embodiment of the present invention, the cooling oil filling mechanism includes an oil storage frame, four of the oil storage frames are connected to the outside of the mounting frame, the oil storage frames are used to store cooling oil, a pressure component is installed on the top of the oil storage frame, the pressure component is used to apply pressure to the oil storage frame, four oil guide blocks are connected to the top of the mounting frame by bolts, oil pipelines are connected between the oil guide blocks and adjacent oil storage frames, infrared sensors are connected to the oil storage frames, a first fixed plate is connected to the rotating table, the first fixed plate is used to trigger the infrared sensor, and the infrared sensor is electrically connected to the pressure component.

[0007] In a preferred embodiment of the present invention, the recovery mechanism includes a material guide plate, six of the material guide plates are installed on the rotating table, a second fixed plate is connected to the left side of the mounting frame, a collection frame for collecting cooling oil is installed on the second fixed plate, an oil guide groove is opened on the rotating table, and the material guide plate is slidably connected to the corresponding oil guide groove.

[0008] In a preferred embodiment of the present invention, a cleaning mechanism is also included, the cleaning mechanism includes a third fixed plate, the third fixed plate is arranged on the mounting frame, a pushing assembly for automatically pushing out the material is arranged on the front side of the third fixed plate, a placement frame for collecting the material is connected to the front side of the mounting frame, and an ultrasonic generator for cleaning the material is installed on the placement frame.

[0009] In a preferred embodiment of the present invention, it also includes an anti-accumulation mechanism, and the anti-accumulation mechanism includes a mounting seat, the mounting seat is connected to the left front side of the mounting frame, the mounting seat is rotatably connected to a first rotating shaft, the bottom of the first rotating shaft is connected to a rotating disk, the front side of the mounting frame is connected to a mounting frame by bolts, the first rotating shaft is rotatably connected to the mounting frame, the second rotating shaft is rotatably connected to the mounting frame, the second rotating shaft and the first rotating shaft are both connected to a bevel gear, the two bevel gears are meshed with each other, the second rotating shaft is connected to a universal joint, an anti-accumulation component for preventing the discharge port on the mounting frame from being blocked is rotatably connected to the universal joint, an adsorption roller is rotatably connected to the anti-accumulation component, a scraper is connected between the mounting frame and the mounting frame, and the scraper is used to extrude the adsorption roller on the anti-accumulation component.

[0010] In a preferred embodiment of the present invention, a filter frame is further included. The filter frame for carrying materials is clamped in the placement frame, and the filter frame can separate the cleaned impurities.

[0011] In a preferred embodiment of the present invention, a material guide pipe is further included. The front side of the mounting frame is connected with the material guide pipe for facilitating the placement of materials.

[0012] In a preferred embodiment of the present invention, the guide plate is composed of a C-shaped circular ring and a guide inclined plate, and a wedge-shaped block for blocking and guiding is provided at the position where the C-shaped circular ring and the guide inclined plate are connected.

[0013] In a preferred embodiment of the present invention, the front side of the pusher assembly is provided with a C-shaped limit frame for ensuring that the material can be pushed out stably.

[0014] By adopting the above technical solution, the present invention has the following advantages: 1. The present invention relies on a rotating table to drive the first fixed plate to move. When the first fixed plate and the corresponding infrared sensor move to the same straight line, the first fixed plate will trigger the infrared sensor accordingly. After the infrared sensor is triggered, the corresponding pressure component will be automatically turned on. At this time, the cooling oil in the oil storage frame will enter the corresponding mold through the corresponding oil guide block, thereby automatically cooling and protecting the material. At the same time, the overflowed cooling oil is automatically recovered to avoid material waste.

[0015] 2. As the material begins to undergo cold heading stamping, the material moves downward under pressure, squeezing the cooling oil in the mold, causing the cooling oil to overflow from the mold. The overflowed cooling oil will flow outward along the oil guide groove under the guidance of the guide plate, and enter the collection frame for collection as the turntable rotates. It should be noted that the cooling oil outlet is only on the left side of the mounting frame. During the stamping process, the overflowed cooling oil will stay in the oil guide groove for a period of time until the oil guide groove is connected to the outlet, and the cooling oil will be discharged.

[0016] 3. As the material moves to the left front side of the rotating table after stamping, the telescopic end of the hydraulic cylinder at the corresponding position is controlled to extend upward, so that the material is pushed upward. Then the pushing assembly is controlled to move so that the stamped material moves forward and falls into the placement frame. Finally, the ultrasonic cleaner is started to clean the material.

[0017] 4. During the outflow of cooling oil, it will accumulate in the oil guide groove for a period of time because it does not move to the discharge port. After a long time, the cooling oil may condense and cause the oil guide groove to be blocked. When it is found that the oil guide groove is blocked and the cooling oil cannot be discharged normally, it is necessary to control the rotation of the rotating disk so that the first rotating shaft drives the corresponding bevel gear to rotate, and then the second rotating shaft drives the universal joint to rotate. At this time, the adsorption roller in the anti-accumulation component will start to rotate to process the oil outlet of the oil guide groove. At the same time, the scraper will squeeze the adsorption roller to prevent the accumulation of cooling oil on the adsorption roller and affect the rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of a first partial three-dimensional structure of the present invention.

[0020] Figure 3 It is a schematic diagram of a second partial three-dimensional structure of the present invention.

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the cooling oil injection mechanism of the present invention.

[0022] Figure 5 It is a partial cross-sectional three-dimensional structural schematic diagram of the recovery mechanism of the present invention.

[0023] Figure 6 It is a partial three-dimensional structural schematic diagram of the recovery mechanism of the present invention.

[0024] Figure 7 It is a three-dimensional structural schematic diagram of the cleaning mechanism of the present invention.

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the anti-accumulation mechanism of the present invention.

[0026] Fig. 9 It is a partial cross-sectional three-dimensional structural schematic diagram of the anti-accumulation mechanism of the present invention.

[0027] Fig.10 It is a schematic diagram of the enlarged three-dimensional structure of part A of the present invention.

[0028] Fig.11 It is a partial three-dimensional structural schematic diagram of the anti-accumulation mechanism of the present invention.

[0029] Fig.12 It is a schematic diagram of a third partial three-dimensional structure of the present invention.

[0030] Among them, the above-mentioned drawings include the following figure marks: 1-mounting frame, 2-rotating table, 3-hydraulic cylinder, 4-cold heading assembly, 5-first spur gear, 6-driving motor, 7-second spur gear, 8-cooling oil injection mechanism, 81-oil storage frame, 82-pressure assembly, 83-oil guide block, 84-infrared sensor, 85-first fixed plate, 9-recovery mechanism, 91-guide plate, 92-second fixed plate, 93-collection frame, 94-oil guide groove, 10-cleaning mechanism, 101-third fixed plate, 102-push assembly, 103-placing frame, 104-ultrasonic generator, 11-anti-accumulation mechanism, 111-mounting seat, 112-rotating disk, 113-first rotating shaft, 114-bevel gear, 115-second rotating shaft, 116-universal joint, 117-anti-accumulation assembly, 118-scraper, 119-mounting frame, 12-filter frame, 13-guide pipe. DETAILED DESCRIPTION

[0031] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0032] Example 1 A cold heading device for fastener production, such as Figure 1-Figure 3 As shown, it includes a mounting frame 1, the top of the mounting frame 1 is rotatably connected to a rotating table 2, a hydraulic cylinder 3 is installed on the rotating table 2, the telescopic end of the hydraulic cylinder 3 is slidably connected to the rotating table 2, the telescopic end of the hydraulic cylinder 3 extends upward to push out the stamped material, a cold heading component 4 is installed on the mounting frame 1, the cold heading component 4 is used to stamp the material, a circular ring-shaped first spur gear 5 is connected to the outer side of the rotating table 2, a drive motor 6 is connected to the upper side of the rear part of the mounting frame 1, the output shaft of the drive motor 6 is arranged to face upward, a second spur gear 7 is connected to the output shaft of the drive motor 6, the first spur gear 5 and the second spur gear 7 are meshed with each other, and also includes: a cooling oil injection mechanism 8, the cooling oil injection mechanism 8 is arranged on the mounting frame 1, and the cooling oil injection mechanism 8 is used to cool the material during stamping; a recovery mechanism 9, the recovery mechanism 9 is arranged on the rotating table 2 and the mounting frame 1, and the recovery mechanism 9 is used to recover the overflowed cooling oil.

[0033] It should be noted that, first, the material to be cold headed is placed in the cylindrical mold on the turntable 2, and then the output shaft of the drive motor 6 is controlled to drive the second spur gear 7 to rotate, so that the first spur gear 5 rotates. The rotation of the first spur gear 5 will drive the turntable 2 to rotate, and then the cold heading component 4 is used to continuously stamp the material in the turntable 2 so that the material is finally formed. During the stamping process, the cooling oil injection mechanism 8 is used to continuously inject cooling oil into the turntable 2 to avoid overheating of the material. With each downward stamping of the cold heading component 4, the material will be squeezed downward, thereby squeezing out the cooling oil in the turntable 2. At this time, the extruded cooling oil is recovered by the recovery mechanism 9 to avoid material waste.

[0034] like Figure 1 and Figure 4As shown, the cooling oil filling mechanism 8 includes an oil storage frame 81, four oil storage frames 81 are connected to the outside of the mounting frame 1, the oil storage frame 81 is used to store cooling oil, and a pressure component 82 is installed on the top of the oil storage frame 81, and the pressure component 82 is used to apply pressure to the oil storage frame 81, and four oil guide blocks 83 are connected to the top of the mounting frame 1 by bolts, and oil pipelines are connected between the oil guide blocks 83 and adjacent oil storage frames 81, and infrared sensors 84 are connected to the oil storage frames 81, and a first fixed plate 85 is connected to the rotating table 2, and the first fixed plate 85 is used to trigger the infrared sensor 84, and the infrared sensor 84 is electrically connected to the pressure component 82.

[0035] It should be noted that as the turntable 2 starts to rotate, the material will move along with the turntable 2, and the first fixed plate 85 will also start to move synchronously. When the first fixed plate 85 and the corresponding infrared sensor 84 move to the same straight line, the first fixed plate 85 will trigger the infrared sensor 84 accordingly. After the infrared sensor 84 is triggered, the corresponding pressure component 82 will be automatically turned on, thereby increasing the pressure in the corresponding oil storage frame 81. At this time, the cooling oil in the oil storage frame 81 will enter the corresponding mold through the corresponding oil guide block 83, thereby cooling and protecting the material.

[0036] like Figure 1 , Figure 5 and Figure 6 As shown, the recovery mechanism 9 includes a guide plate 91, six guide plates 91 are installed on the rotating table 2, the guide plate 91 is composed of a C-shaped ring and a guide inclined plate, and a wedge block for blocking and guiding is provided at the connection position between the C-shaped ring and the guide inclined plate. A second fixed plate 92 is connected to the left side of the mounting frame 1, and a collecting frame 93 for collecting cooling oil is installed on the second fixed plate 92. An oil guide groove 94 is opened on the rotating table 2, and the guide plate 91 is slidably connected to the corresponding oil guide groove 94.

[0037] It should be noted that as the material begins to undergo cold heading stamping, the material moves downward under pressure and squeezes the cooling oil in the mold, causing the cooling oil to overflow from the mold. The overflowed cooling oil will flow outward along the oil guide groove 94 under the guidance of the guide plate 91, and enter the collection frame 93 to be collected as the turntable 2 rotates. It should be noted that the mounting frame 1 only has a cooling oil outlet on the left side. During the stamping process, the overflowed cooling oil will stay in the oil guide groove 94 for a period of time until the oil guide groove 94 is connected to the outlet, and the cooling oil will be discharged.

[0038] Example 2 On the basis of Example 1, Figure 1 and Figure 7As shown, a cleaning mechanism 10 is also included, and the cleaning mechanism 10 includes a third fixed plate 101. The third fixed plate 101 is arranged on the mounting frame 1, and a pushing assembly 102 for automatically pushing out the material is arranged on the front side of the third fixed plate 101. The front side of the pushing assembly 102 has a C-shaped limit frame for ensuring that the material can be pushed out stably. The front side of the mounting frame 1 is connected to a placement frame 103 for collecting the material, and an ultrasonic generator 104 for cleaning the material is installed on the placement frame 103.

[0039] It should be noted that, as the material moves to the left front side of the turntable 2 after stamping, the telescopic end of the hydraulic cylinder 3 at the corresponding position is controlled to extend upward, so that the material is pushed upward, and then the pushing assembly 102 is controlled to move, so that the material after stamping moves forward and falls into the placement frame 103, and finally the ultrasonic cleaner is started to clean the material.

[0040] like Figure 1 , Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, the anti-accumulation mechanism 11 is also included. The anti-accumulation mechanism 11 includes a mounting seat 111. The mounting seat 111 is connected to the left front side of the mounting frame 1. The mounting seat 111 is rotatably connected to a first rotating shaft 113. The bottom of the first rotating shaft 113 is connected to a rotating disk 112. The front side of the mounting frame 1 is connected to a mounting frame 119 by bolts. The first rotating shaft 113 is rotatably connected to the mounting frame 119. The second rotating shaft 115 is rotatably connected to the first rotating shaft 113. The shafts 113 are connected to bevel gears 114, which are meshed with each other. The second rotating shaft 115 is connected to a universal joint 116, and the universal joint 116 is rotatably connected to an anti-accumulation component 117 for preventing the discharge port on the mounting frame 1 from being blocked. The anti-accumulation component 117 is rotatably connected to an adsorption roller. A scraper 118 is connected between the mounting frame 1 and the mounting frame 119, and the scraper 118 is used to extrude the adsorption roller on the anti-accumulation component 117.

[0041] It should be noted that, in the process of cooling oil outflowing, it will accumulate in the oil guide groove 94 for a period of time because it does not move to the discharge port. After a long time, the cooling oil may condense, thereby causing the oil guide groove 94 to be blocked. When it is found that the oil guide groove 94 is blocked and the cooling oil cannot be discharged normally, it is necessary to control the rotation of the rotating disk 112, so that the first rotating shaft 113 drives the corresponding bevel gear 114 to rotate, and then the second rotating shaft 115 drives the universal joint 116 to rotate. At this time, the adsorption roller in the anti-accumulation component 117 will start to rotate to process the oil outlet of the oil guide groove 94. At the same time, the scraper 118 will squeeze the adsorption roller to prevent the cooling oil from accumulating on the adsorption roller and affecting the rotation.

[0042] like Figure 1 and Fig.12 As shown, a filter frame 12 is also included. The filter frame 12 for carrying materials is clamped in the placement frame 103, and the filter frame 12 can separate the cleaned impurities.

[0043] like Figure 1 and Fig.12 As shown, a material guide pipe 13 is also included. The front side of the mounting frame 1 is connected with the material guide pipe 13 for convenient material placement.

[0044] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A cold heading device for fastener production, comprising a mounting frame (1), the top of the mounting frame (1) being rotatably connected to a rotating table (2), a hydraulic cylinder (3) being mounted on the rotating table (2), a telescopic end of the hydraulic cylinder (3) being slidably connected to the rotating table (2), the telescopic end of the hydraulic cylinder (3) extending upward to push out a punched material, a cold heading assembly (4) being mounted on the mounting frame (1), the cold heading assembly (4) being used to punch and form the material, a first annular spur gear (5) being connected to the outer side of the rotating table (2), a drive motor (6) being connected to the upper rear side of the mounting frame (1), the output shaft of the drive motor (6) being arranged to face upward, a second spur gear (7) being connected to the output shaft of the drive motor (6), the first spur gear (5) and the second spur gear (7) being meshed with each other, wherein: Also included are: A cooling oil injection mechanism (8), the cooling oil injection mechanism (8) being arranged on the mounting frame (1), the cooling oil injection mechanism (8) being used for performing cooling treatment when the material is being stamped and formed; A recovery mechanism (9), the recovery mechanism (9) being arranged on the rotating table (2) and the mounting frame (1), and the recovery mechanism (9) being used for recovering overflowed cooling oil.

2. A cold heading device for fastener production according to claim 1, characterized in that: The cooling oil injection mechanism (8) comprises an oil storage frame (81). Four oil storage frames (81) are connected to the outside of the mounting frame (1). The oil storage frames (81) are used to store cooling oil. A pressure component (82) is installed on the top of each of the oil storage frames (81). The pressure component (82) is used to apply pressure to the inside of the oil storage frame (81). Four oil guide blocks (83) are connected to the top of the mounting frame (1) by bolts. Oil pipelines are connected between each of the oil guide blocks (83) and adjacent oil storage frames (81). Infrared sensors (84) are connected to each of the oil storage frames (81). A first fixed plate (85) is connected to the rotating table (2). The first fixed plate (85) is used to trigger the infrared sensor (84). The infrared sensor (84) is electrically connected to the pressure component (82).

3. A cold heading device for fastener production according to claim 2, characterized in that: The recovery mechanism (9) comprises a material guide plate (91), six of the material guide plates (91) are mounted on the rotating table (2), a second fixed plate (92) is connected to the left side of the mounting frame (1), a collection frame (93) for collecting cooling oil is mounted on the second fixed plate (92), an oil guide groove (94) is formed on the rotating table (2), and the material guide plates (91) are slidably connected to the corresponding oil guide grooves (94).

4. A cold heading device for fastener production according to claim 3, characterized in that: The invention also comprises a cleaning mechanism (10), the cleaning mechanism (10) comprising a third fixing plate (101), the third fixing plate (101) being arranged on the mounting frame (1), a material pushing assembly (102) for automatically pushing out materials being arranged on the front side of the third fixing plate (101), a placing frame (103) for collecting materials being connected to the front side of the mounting frame (1), and an ultrasonic generator (104) for cleaning the materials being installed on the placing frame (103).

5. A cold heading device for fastener production according to claim 4, characterized in that: The anti-accumulation mechanism (11) also includes a mounting seat (111), the mounting seat (111) is connected to the left front side of the mounting frame (1), a first rotating shaft (113) is rotatably connected to the mounting seat (111), a rotating disk (112) is connected to the bottom of the first rotating shaft (113), a mounting frame (119) is connected to the front side of the mounting frame (119) by bolts, the first rotating shaft (113) is rotatably connected to the mounting frame (119), a second rotating shaft (115) is rotatably connected to the mounting frame (119), and the second rotating shaft (115) is rotatably connected to the mounting frame (119). The first rotating shaft (113) is connected to a bevel gear (114), the two bevel gears (114) are meshed with each other, the second rotating shaft (115) is connected to a universal joint (116), an anti-deposit component (117) for preventing a discharge port on the mounting frame (1) from being blocked is rotatably connected to the universal joint (116), an adsorption roller is rotatably connected to the anti-deposit component (117), a scraper (118) is connected between the mounting frame (1) and the mounting frame (119), and the scraper (118) is used to extrude the adsorption roller on the anti-deposit component (117).

6. A cold heading device for fastener production according to claim 5, characterized in that: It also includes a filter frame (12), wherein the placement frame (103) is clamped with the filter frame (12) for carrying materials, and the filter frame (12) can separate cleaned impurities.

7. A cold heading device for fastener production according to claim 6, characterized in that: It also includes a material guide pipe (13), and the front side of the mounting frame (1) is connected to the material guide pipe (13) for facilitating the insertion of materials.

8. A cold heading device for fastener production according to claim 3, characterized in that: The guide plate (91) is composed of a C-shaped circular ring and a guide inclined plate, and a wedge-shaped block for blocking and guiding is provided at the position where the C-shaped circular ring and the guide inclined plate are connected.

9. A cold heading device for fastener production according to claim 4, characterized in that: The front side of the material pushing component (102) is provided with a C-shaped limiting frame, which is used to ensure that the material can be pushed out stably.

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