Threaded fastener forming die

Abstract

The utility model discloses a threaded fastener forming die which comprises a working table, a lower die and a driving assembly, the working table is provided with an inner cavity, the top of the inner cavity is provided with a through groove, the top of the working table is fixedly provided with an inverted-U-shaped supporting frame on the outer side of the through groove, and the top of the supporting frame is fixedly provided with a hydraulic push rod. An upper mold is fixedly arranged at the output end of the hydraulic push rod, one side of the bottom of the lower mold is rotationally connected with the top of the workbench, a groove is formed in the top of the lower mold, a plurality of forming grooves are formed in the bottom wall of the groove in an array mode, an ejector rod is arranged at the bottom of each forming groove in a sliding and penetrating mode, and the driving assembly is arranged in the workbench. The driving assembly can drive the ejector rods to move up and down and can drive the lower die to rotate. Through the arrangement, the working efficiency can be improved, and the safety of the device during use is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the fastener processing technical field, concretely relates to a threaded fastener forming die. BACKGROUND

[0002] Threaded fastener is a kind of mechanical parts that is used to fasten and connect by screwing, generally consists of threaded section and head, and the head of threaded fastener is shaped by cold heading or hot heading process with the aid of die in prior art.

[0003] The Chinese patent with publication number CN221935280U discloses a hexagonal flange bolt pre-deformation die, which includes a die base box, a mounting plate fixedly connected to the top of the die base box, a pressing plate slidably connected to the inside of the mounting plate, a pressing die head fixedly connected to the bottom of the pressing plate, a pressing groove formed in the top of the die base box, a plurality of bolt cavities formed in the inner bottom wall of the pressing groove, a connecting plate slidably connected to the inside of the die base box, and a plurality of extrusion rods fixedly connected to the top of the connecting plate. The above-mentioned scheme uses the cooperation of the pressing plate, the pressing die head and the bolt cavities to extrude and form the blank.

[0004] When the above-mentioned scheme is used, the extrusion rods extrude the finished bolts in the bolt cavities by moving the connecting plate, achieving the purpose of convenient demolding. However, after the finished bolts are extruded by the extrusion rods, they still need to be collected and transported manually, which leads to low work efficiency and low safety. UTILITY MODEL CONTENTS

[0005] The utility model intends to provide a threaded fastener forming die to solve the problem of low work efficiency and low safety in the above-mentioned scheme.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A threaded fastener forming die includes a workbench, a lower die and a driving assembly. The workbench has an inner cavity, and a through groove is arranged at the top of the inner cavity. A support frame in inverted U shape is fixedly arranged on the top of the workbench outside the through groove. A hydraulic push rod is fixedly arranged at the top of the support frame. An upper die is fixedly arranged at the output end of the hydraulic push rod. One side of the bottom of the lower die is rotatably connected to the top of the workbench. A recess is formed in the top of the lower die. A plurality of forming grooves are arranged in the bottom wall of the recess in array. A jack rod is slidably arranged at the bottom of each forming groove. The driving assembly is arranged in the workbench. The driving assembly can drive each jack rod to move up and down and can drive the lower die to rotate.

[0008] Principle and effect of the technical scheme:

[0009] During die casting, the lower mold is placed horizontally on the top of the workbench, with the top surface of each ejector pin flush with the bottom wall of the forming groove. The blank is placed in each forming groove, and the hydraulic push rod moves the upper mold downward, causing the upper mold to slide into the groove and cooperate with the forming groove to die cast the blank. After die casting is completed, the upper mold is moved upward first, and then the drive assembly moves each ejector pin upward simultaneously, causing the ejector pins to push out the finished fasteners in the forming groove. After placing the storage tool on one side of the workbench, the drive assembly rotates the lower mold, causing the lower mold to pour the finished fasteners in the groove into the storage tool.

[0010] With the above-mentioned setup, the ejector pins facilitate demolding of the finished fasteners in the molding groove, improving demolding efficiency. Subsequently, by rotating the lower mold, workers can easily transfer the demolded finished fasteners, further improving work efficiency. At the same time, it can prevent workers from coming into contact with the finished fasteners, thus improving the safety of the device during use.

[0011] In this invention, the drive assembly includes a relay plate movably disposed in the inner cavity, and the bottom of each push rod is fixedly connected to the top of the relay plate.

[0012] In this utility model, a support block is fixedly provided on the top of each of the top rods, and each support block is slidably embedded in the corresponding forming groove, and the bottom of the support block can abut against the bottom wall of the forming groove.

[0013] In this utility model, two first guide rods are fixedly arranged at a horizontal interval in the inner cavity. The driving assembly also includes a slider and a telescopic rod. The slider is slidably sleeved on the two first guide rods. The telescopic rod is installed horizontally on the worktable, and the movable end of the telescopic rod is fixedly connected to the slider. The top of the slider is rotatably connected to a connecting rod, and the top of the connecting rod is rotatably connected to the bottom of the relay plate.

[0014] The principle and effects of this technical solution:

[0015] Initially, the telescopic rod is in a retracted state. The slider pulls the relay plate downwards via the connecting rod until the bottom of each support block abuts against the bottom wall of the corresponding forming groove. This fixes the lower mold and provides support to the support blocks from the bottom wall of the forming groove. During die casting of the blank, the support blocks provide support to the bottom of the blank. After die casting is completed, the telescopic rod extends, pushing the slider to move. During the slider's movement, it first pushes the relay plate upwards, causing the push rods and corresponding support blocks on the relay plate to move upwards, pushing out the finished fasteners from the forming groove. Once the top of the relay plate abuts against the bottom of the lower mold, the slider continues to move. The slider, via the connecting rod, pushes the relay plate and the lower mold to rotate until the lower mold pours out the finished fasteners from the groove. Throughout the entire operation, the end of the connecting rod connected to the slider is always lower than the end of the connecting rod connected to the relay plate.

[0016] By setting it up as described above, the bottom wall of the forming groove provides support to the support block, which can prevent the relay plate from being subjected to pressure from the hydraulic push rod transmitted by the blank, thereby preventing the relay plate from deforming due to excessive pressure, extending the service life of the device, and achieving the purpose of driving the drive assembly to move each push rod up and down and driving the lower mold to rotate.

[0017] In this invention, a second guide rod is fixedly provided vertically at the top of the upper mold, and the second guide rod slides through the support frame.

[0018] In this invention, the top of the inner sidewall of the groove is provided with a guide slope.

[0019] The principle and effects of this technical solution:

[0020] When the lower mold shifts relative to the worktable due to long-term use, the groove on the top of the lower mold may not be aligned with the upper mold when the lower mold is placed on the worktable. As the upper mold moves downward, its bottom first contacts part of the guide ramp. As the upper mold continues to move downward, the upper mold causes the lower mold to rotate through the guide ramp until the upper mold is embedded in the groove.

[0021] The above settings improve the smoothness of the device during operation and ensure that the upper mold can be embedded in the groove, thereby improving the quality of the finished product.

[0022] In this invention, the projection of the lower mold can cover the projection of the through slot. This arrangement allows the worktable to support the lower mold, improving the stability of the device during operation. Attached Figure Description

[0023] Figure 1 This is a front axonometric drawing of the present invention;

[0024] Figure 2 This is a rear-view axonometric drawing of the present invention.

[0025] Figure 3 This is a partial isometric sectional view of the present invention;

[0026] Figure 4 This is an exploded view of some components of this utility model. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0028] The reference numerals in the accompanying drawings include: 10, worktable; 11, inner cavity; 12, through groove; 13, support frame; 14, hydraulic push rod; 15, first guide rod; 20, upper mold; 21, second guide rod; 30, lower mold; 31, groove; 32, forming groove; 33, push rod; 34, support block; 35, guide ramp; 41, relay plate; 42, slider; 421, connecting rod; 43, telescopic rod.

[0029] Example:

[0030] As attached Figures 1-4 As shown, this utility model discloses a threaded fastener forming mold, including a worktable 10, a lower mold 30, and a driving assembly. The worktable 10 has an inner cavity 11, and a through groove 12 is provided on the top of the inner cavity 11. An inverted U-shaped support frame 13 is fixedly provided on the top of the worktable 10 outside the through groove 12. A hydraulic push rod 14 is fixedly provided on the top of the support frame 13. An upper mold 20 is fixedly provided at the output end of the hydraulic push rod 14. One side of the bottom of the lower mold 30 is rotatably connected to the top of the worktable 10. A groove 31 is provided on the top of the lower mold 30. A plurality of forming grooves 32 are arranged in an array on the bottom wall of the groove 31. A push rod 33 is slidably passed through the bottom of each forming groove 32. The driving assembly is provided inside the worktable 10. The driving assembly can drive each push rod 33 to move up and down and can drive the lower mold 30 to rotate.

[0031] In this embodiment, the drive assembly includes a relay plate 41 movably disposed in the inner cavity 11, and the bottom of each push rod 33 is fixedly connected to the top of the relay plate 41.

[0032] In this embodiment, a support block 34 is fixedly provided on the top of each of the top rods 33, and each support block 34 is slidably embedded in the corresponding molding groove 32. The bottom of the support block 34 can abut against the bottom wall of the molding groove 32.

[0033] In this embodiment, two first guide rods 15 are fixedly arranged at a horizontal interval in the inner cavity 11. The driving assembly also includes a slider 42 and a telescopic rod 43. The slider 42 is slidably sleeved on the two first guide rods 15. The telescopic rod 43 is installed horizontally on the worktable 10, and the movable end of the telescopic rod 43 is fixedly connected to the slider 42. The top of the slider 42 is rotatably connected to a connecting rod 421, and the top of the connecting rod 421 is rotatably connected to the bottom of the relay plate 41.

[0034] In some embodiments, the other side of the bottom of the lower mold 30 is connected to the top of the worktable 10 via a locking mechanism. The locking mechanism can prevent the lower mold 30 from rotating during the movement of the ejector rod 33 relative to it. For example, the locking mechanism can be a magnetic component, which is disposed on the lower mold 30 or the worktable 10. The magnetic force is used to attract the lower mold 30, preventing the lower mold 30 from rotating due to the friction between the ejector rod 33 and the support block 34 and the lower mold 30 during the movement of the ejector rod 33 relative to the lower mold 30.

[0035] In this embodiment, a second guide rod 21 is fixedly provided vertically on the top of the upper mold 20, and the second guide rod 21 slides through the support frame 13.

[0036] In this embodiment, the top of the inner sidewall of the groove 31 is provided with a guide slope 35.

[0037] In this embodiment, the projection of the lower mold 30 can cover the projection of the through groove 12.

[0038] The specific implementation process is as follows:

[0039] During die casting, the lower mold 30 is placed horizontally on the top of the workbench 10, and the top surface of each ejector rod 33 is flush with the bottom wall of the forming groove 32. The blank is placed in each forming groove 32, and the hydraulic push rod 14 moves the upper mold 20 down, so that the upper mold 20 slides into the groove 31 and cooperates with the forming groove 32 to die cast the blank. After die casting is completed, the upper mold 20 is moved up first, and then the drive assembly moves each ejector rod 33 up at the same time, so that the ejector rod 33 pushes out the finished fastener in the forming groove 32. After placing the storage tool on one side of the workbench 10, the drive assembly rotates the lower mold 30, so that the lower mold 30 pours the finished fastener in the groove 31 into the storage tool.

[0040] Initially, the telescopic rod 43 is in a retracted state. The slider 42 pulls the relay plate 41 downwards via the connecting rod 421 until the bottom of each support block 34 abuts against the bottom wall of the corresponding forming groove 32. This fixes the lower mold 30 and provides support to the support block 34 from the bottom wall of the forming groove 32. During die casting of the blank, the support block 34 provides support to the bottom of the blank. After the die casting is completed, the telescopic rod 43 is extended, which in turn pushes the slider 42 to move. During the movement of the slider 42, it first pushes the relay plate 41 downwards. 1. Move upward, thereby causing each push rod 33 and corresponding support block 34 on the relay plate 41 to move upward, so as to push out the finished fastener in the forming groove 32; after the top of the relay plate 41 abuts against the bottom of the lower mold 30, continue to move the slider 42. The slider 42 pushes the relay plate 41 and the lower mold 30 to rotate through the connecting rod 421 until the lower mold 30 pours out the finished fastener in the groove 31. During the entire operation, the end of the connecting rod 421 connected to the slider 42 is always lower than the end of the connecting rod 421 connected to the relay plate 41.

[0041] When the lower mold 30 shifts relative to the worktable 10 due to long-term use, and the lower mold 30 is placed on the worktable 10, the groove 31 on its top may not be aligned with the upper mold 20. As the upper mold 20 moves downward, its bottom first contacts part of the guide slope 35. As the upper mold 20 continues to move downward, the upper mold 20 causes the lower mold 30 to rotate through the guide slope 35 until the upper mold 20 is embedded in the groove 31.

[0042] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A threaded fastener forming mold, characterized in that, include: The workbench has an inner cavity, and a through groove is provided at the top of the inner cavity. An inverted U-shaped support frame is fixedly provided on the top of the workbench outside the through groove. A hydraulic push rod is fixedly provided on the top of the support frame, and an upper mold is fixedly provided at the output end of the hydraulic push rod. The lower mold has one side of its bottom that is rotatably connected to the top of the worktable. The top of the lower mold has a groove, and the bottom wall of the groove is provided with multiple forming grooves. Each forming groove has a push rod slidingly passing through its bottom. A drive assembly is disposed within the worktable. The drive assembly is capable of driving each ejector rod to move up and down and driving the lower mold to rotate.

2. The threaded fastener forming mold as described in claim 1, characterized in that: The drive assembly includes a relay plate movably disposed in the inner cavity, and the bottom of each push rod is fixedly connected to the top of the relay plate.

3. The threaded fastener forming mold as described in claim 2, characterized in that: Each of the top rods is fixedly provided with a support block at its top, and each support block is slidably embedded in the corresponding forming groove, with the bottom of the support block able to abut against the bottom wall of the forming groove.

4. The threaded fastener forming mold as described in claim 3, characterized in that: Two first guide rods are fixedly arranged at a horizontal interval in the inner cavity. The driving assembly also includes a slider and a telescopic rod. The slider is slidably sleeved on the two first guide rods. The telescopic rod is installed horizontally on the worktable, and the movable end of the telescopic rod is fixedly connected to the slider. The top of the slider is rotatably connected to a connecting rod, and the top of the connecting rod is rotatably connected to the bottom of the relay plate.

5. The threaded fastener forming mold as described in claim 4, characterized in that: A second guide rod is fixedly installed vertically at the top of the upper mold, and the second guide rod slides through the support frame.

6. The threaded fastener forming mold as described in any one of claims 1-5, characterized in that: The top of the inner wall of the groove is provided with a guide slope.

7. The threaded fastener forming mold as described in claim 6, characterized in that: The projection of the lower mold can cover the projection of the through slot.

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