Screwdriver head machining forging machine

Abstract

The utility model belongs to the field of forging equipment, and particularly relates to a screwdriver bit machining forging machine which comprises a workbench. A hydraulic cylinder is fixedly connected to the top of the workbench. The output end of the hydraulic cylinder is fixedly connected with an upper die; the top of the workbench is fixedly connected with a lower mold; by arranging the piston cylinder, the piston rod, the air hole and the push plate, during use, the hydraulic cylinder drives the upper die to move downwards, then the push plate is driven to push the piston rod to move downwards, the piston rod moves downwards, the piston cylinder forms negative pressure, the negative pressure is formed above the air hole, and therefore a screwdriver bit blank is driven to be thoroughly attached to a forming groove and fixed to a certain degree; the forming groove is matched with the bottom of the screwdriver bit, so that the screwdriver bit blank is automatically positioned and fixed to a certain degree, the situation that the screwdriver bit blank shakes before the upper die and the lower die are closed is reduced, and the forming precision is improved conveniently.

Description

Technical Field

[0001] The utility model relates to the field of forging equipment, in particular to a screwdriver bit processing forging machine. Background Technique

[0002] The screwdriver bit, as a key component of tools such as screwdrivers, is mainly used to tighten or loosen fasteners such as screws. Its designs are diverse to adapt to screws of different shapes, sizes and materials, such as flat head, cross head, hexagon head, and plum blossom head types.

[0003] In the current prior art, the head of the screwdriver bit needs to be processed into a corresponding plum blossom shape or flat head shape by a forging machine to complete the head forming of the screwdriver bit. The forging machine mainly consists of a hydraulic cylinder, an upper die and a lower die. A forming groove is opened in the lower die, and this groove is used to cooperate with the upper die. After the upper die and the lower die are closed, the head of the screwdriver bit blank is extruded and plastically deformed to complete the head forming of the screwdriver bit. And during use, the forming groove is also used to place the regular hexagon screwdriver bit blank, which can play a role in limiting and fixing.

[0004] However, during use, when the screwdriver bit blank is placed in the forming groove of the lower die, it is prone to skew and dislocation, resulting in defects in the formed screwdriver bit, and further causing the scrapping of the screwdriver bit. Therefore, a screwdriver bit processing forging machine is proposed for the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background technique, the utility model proposes a screwdriver bit processing forging machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A screwdriver bit processing forging machine described in the utility model includes a workbench; a hydraulic cylinder is fixedly connected to the top of the workbench; the output end of the hydraulic cylinder is fixedly connected to an upper die; a lower die is fixedly connected to the top of the workbench; a die cavity is opened in the lower die; a base is slidably connected inside the die cavity; a forming groove is opened at the top of the base; a piston cylinder is fixedly connected to the workbench; a piston rod is slidably connected inside the piston cylinder; a push plate is fixedly connected to the corresponding position of the side of the upper die and the piston rod; an air hole is opened at the bottom of the forming groove; a flexible pipe is fixedly connected between the air hole and the rodless cavity of the piston cylinder.

[0007] Preferably, a through hole is opened in the middle side wall of the piston cylinder; a first spring is fixedly connected between the top end of the piston rod and the piston cylinder.

[0008] Preferably, a vertical rod is fixedly connected to the bottom end of the piston rod; a groove is formed in the vertical rod; a support is fixedly connected to the bottom of the piston cylinder; a sliding groove is formed in the side surface of the support; a clamping block is slidably connected in the sliding groove; and a second spring is fixedly connected between the clamping block and the side wall of the sliding groove.

[0009] Preferably, a support rod is fixedly connected to the bottom of the base; the support rod penetrates through the bottom of the die cavity and is slidably connected thereto; a third spring is fixedly connected between the base and the bottom side of the die cavity; and a protrusion is provided on the inner side wall of the die cavity.

[0010] Preferably, a guide rod is fixedly connected to the bottom of the upper die; a guide hole is formed in the lower die at a position corresponding to the guide rod.

[0011] Preferably, two material guiding grooves are formed in the lower die; the material guiding grooves are inclined; and the two material guiding grooves are symmetrically arranged on both sides of the die cavity.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By arranging a piston cylinder, a piston rod, an air hole and a push plate, when in use, the hydraulic cylinder drives the upper die to move downward, and then drives the push plate to push the piston rod downward. When the piston rod moves downward, a negative pressure is formed in the piston cylinder, so that a negative pressure is formed above the air hole, thereby driving the screwdriver bit blank to be completely attached to the forming groove and fixing it to a certain extent. The forming groove is fitted with the bottom of the screwdriver bit, so as to automatically position the screwdriver bit blank and fix it to a certain extent, reduce the shaking of the screwdriver bit blank before the upper die and the lower die are closed, and facilitate improving the forming precision.

[0014] 2. By means of the vertical rod, the support, the clamping block and the second spring, when in use, after the piston rod moves downward a certain distance, the vertical rod will be inserted into the interior of the support, and then under the action of the second spring, the end of the clamping block will be stuck into the groove, and the vertical rod can be fixed to a certain extent by relying on the friction force. The vertical rod and the piston rod need to wait for a certain time to reset. After that, when the clamping block is disengaged from the groove, the upper die has been reset, so that the piston rod can be quickly reset, thereby increasing the air flow intensity ejected from the air hole. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1Structural schematic diagram of the present utility model;

[0017] Figure 2 Structural schematic diagram of the lower mold of the present utility model;

[0018] Figure 3 Cross-sectional structural schematic diagram of the lower mold of the present utility model;

[0019] Figure 4 Structural schematic diagram of the piston cylinder of the present utility model;

[0020] Figure 5 Structural schematic diagram of the base of the present utility model.

[0021] In the figure: 11, workbench; 12, hydraulic cylinder; 13, upper mold; 14, lower mold; 15, base; 16, forming groove; 17, push plate; 18, piston cylinder; 19, piston rod; 191, air hole; 21, through hole; 22, first spring; 31, vertical rod; 32, groove; 33, support; 34, clamping block; 41, support rod; 42, third spring; 43, protrusion; 51, guide rod; 52, guide hole; 6, material guide groove; 7, rubber ring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The following gives specific embodiments.

[0024] Please refer to Figures 1-5As shown in the figure, a screwdriver bit processing and forging machine includes a workbench 11; a hydraulic cylinder 12 is fixedly connected to the top of the workbench 11; the output end of the hydraulic cylinder 12 is fixedly connected to an upper die 13; the top of the workbench 11 is fixedly connected to a lower die 14; a die cavity is formed in the lower die 14; a base 15 is slidably connected inside the die cavity; a forming groove 16 is formed in the top of the base 15; a piston cylinder 18 is fixedly connected to the workbench 11; a piston rod 19 is slidably connected inside the piston cylinder 18; a push plate 17 is fixedly connected to the corresponding position of the side of the upper die 13 and the piston rod 19; an air hole 191 is formed in the bottom of the forming groove 16; a flexible pipe is fixedly connected between the air hole 191 and the rodless cavity of the piston cylinder 18; during use, the hydraulic cylinder 12 drives the upper die 13 to move downward, and then drives the push plate 17 to push the piston rod 19 downward. When the piston rod 19 moves downward, a negative pressure is formed in the piston cylinder 18, so as to form a negative pressure above the air hole 191, thereby driving the screwdriver bit blank to fit completely with the forming groove 16 and fixing it to a certain extent. The forming groove 16 fits with the bottom of the screwdriver bit, so as to automatically position the screwdriver bit blank and fix it to a certain extent, reducing the shaking of the screwdriver bit blank before the upper die 13 and the lower die 14 are closed, and facilitating the improvement of the forming accuracy.

[0025] Further, as Figures 3-4 shown, a through hole 21 is formed in the middle side wall of the piston cylinder 18; a first spring 22 is fixedly connected between the top end of the piston rod 19 and the piston cylinder 18; during use, when the upper die 13 contacts the screwdriver bit, the upper die 13 and the lower die 14 can fix the screwdriver bit. As the upper die 13 continues to move downward, the piston rod 19 moves to the position of the through hole 21, and external air will enter the rod chamber of the piston cylinder 18 from the through hole 21. Then when the upper die 13 returns to its original position, the piston rod 19 returns to its original position, and the air in its rod chamber is injected into the air hole 191 through the flexible pipe, and the screwdriver bit is blown up by the airflow, so as to eject it from the forming groove 16. The first spring 22 is used to facilitate the automatic reset of the piston rod 19.

[0026] Further, as Figure 4As shown, a vertical rod 31 is fixedly connected to the bottom end of the piston rod 19; a groove 32 is formed in the vertical rod 31; a support 33 is fixedly connected to the bottom of the piston cylinder 18; a chute is formed in the side surface of the support 33; a clamping block 34 is slidably connected in the chute; a second spring is fixedly connected between the clamping block 34 and the side wall of the chute; during use, when the piston rod 19 moves downward by a certain distance, the vertical rod 31 will be inserted into the interior of the support 33, and then under the action of the second spring, the end of the clamping block 34 will be clamped into the groove 32, and the vertical rod 31 can be fixed to a certain extent by relying on the friction force. The vertical rod 31 and the piston rod 19 need to wait for a certain time to reset. After that, when the clamping block 34 disengages from the groove 32, the upper mold 13 has completed the reset, enabling the piston rod 19 to quickly reset, thereby increasing the air flow intensity ejected from the air hole 191.

[0027] Further, as Figure 3 and 5 shown, a support rod 41 is fixedly connected to the bottom of the base 15; the support rod 41 penetrates through the bottom of the mold cavity and is slidably connected thereto; a third spring 42 is fixedly connected between the base 15 and the bottom side of the mold cavity; a protrusion 43 is provided on the inner side wall of the mold cavity; during use, in the initial state, the third spring 42 pushes the base 15 upward, and the top of the base 15 is located outside the mold cavity, which facilitates the loading or unloading of the screwdriver bit. When the upper mold 13 and the lower mold 14 are closed, it will push the lower mold 14 into the mold cavity, and then the base 15 lands above the protrusion 43.

[0028] Further, as Figures 1-2 shown, a guide rod 51 is fixedly connected to the bottom of the upper mold 13; a guide hole 52 is formed at the corresponding position of the lower mold 14 for the guide rod 51; during use, the upper mold 13 drives the guide rod 51 to move downward, and it will drive the guide rod 51 to be inserted into the guide hole 52, thereby guiding the closing of the upper and lower molds 14, and further improving the accuracy of stamping and forging.

[0029] Further, as Figures 1-2 shown, two material guiding grooves 6 are formed in the lower mold 14; the material guiding grooves 6 are inclined; the two material guiding grooves 6 are symmetrically arranged on both sides of the mold cavity, and the material guiding grooves 6 are used to facilitate the feeding of the screwdriver bit.

[0030] Further, as Figure 5 shown, a rubber ring 7 is provided at the top of the air hole 191; during use, relying on the provided rubber ring 7 can improve the fit between the air hole 191 and the side wall of the screwdriver bit, thereby improving the sealing effect and further enhancing the negative pressure adsorption effect to a certain extent.

[0031] Working principle: when in use, the hydraulic cylinder 12 drives the upper mold 13 to move downward, and then drives the push plate 17 to push the piston rod 19 downward. The piston rod 19 moves downward and the piston cylinder 18 forms a negative pressure, thereby forming a negative pressure above the air hole 191, thereby driving the screwdriver head blank to fit the forming groove 16 completely and fix it to a certain extent. The forming groove 16 fits with the bottom of the screwdriver head, so as to automatically position the screwdriver head blank and fix it to a certain extent, reduce the shaking of the screwdriver head blank before the upper mold 13 and the lower mold 14 are closed, and it is convenient to improve the quality of the screwdriver head. The precision of the mold is improved. When the upper mold 13 contacts the screwdriver head, the upper mold 13 and the lower mold 14 can fix the screwdriver head. As the upper mold 13 continues to move downward, the piston rod 19 moves to the position of the through hole 21, and the external air enters the rod cavity of the piston cylinder 18 from the through hole 21. Then, when the upper mold 13 is reset, the piston rod 19 is reset, and the air in the rod cavity is injected into the air hole 191 through the flexible tube. The screwdriver head is blown up by the air flow, so as to be ejected from the molding groove 16. The first spring 22 is used to facilitate the automatic reset of the piston rod 19. When the piston rod 19 moves down a certain distance, After the distance, the vertical rod 31 will be inserted into the inside of the support 33, and then the end of the block 34 will be stuck in the groove 32 under the action of the second spring. The vertical rod 31 can be fixed to a certain extent by relying on friction. The vertical rod 31 and the piston rod 19 need to wait for a certain time to reset. After that, when the block 34 is released from the groove 32, the upper mold 13 has completed the reset, so that the piston rod 19 can be quickly reset, thereby increasing the air flow intensity ejected from the air hole 191. In the initial state, the third spring 42 pushes the base 15, and the top of the base 15 is located outside the mold cavity. It can be convenient to put in a screwdriver head or a screwdriver head for blanking. When the upper mold 13 and the lower mold 14 are closed, it will push the lower mold 14 into the mold cavity, and then the base 15 falls on the top of the protrusion 43. The upper mold 13 drives the guide rod 51 to move downward, which will drive the guide rod 51 to be inserted into the guide hole 52, so as to guide the closing of the upper and lower molds 14, thereby improving the accuracy of stamping and forging. The rubber ring 7 set can improve the fit between the air hole 191 and the side wall of the screwdriver head, thereby improving the sealing effect, thereby improving a certain negative pressure adsorption effect.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. A screwdriver bit processing forging machine, comprising a workbench (11); a hydraulic cylinder (12) is fixedly connected to the top of the workbench (11); an upper die (13) is fixedly connected to the output end of the hydraulic cylinder (12); a lower die (14) is fixedly connected to the top of the workbench (11); a die cavity is formed on the lower die (14); the characteristics are: A base (15) is slidably connected inside the mold cavity; a molding groove (16) is provided on the top of the base (15); a piston cylinder (18) is fixedly connected to the workbench (11); a piston rod (19) is slidably connected inside the piston cylinder (18); a push plate (17) is fixedly connected to the side of the upper mold (13) at a position corresponding to the piston rod (19); an air hole (191) is provided at the bottom of the molding groove (16); and a flexible tube is fixedly connected between the air hole (191) and the rodless cavity of the piston cylinder (18).

2. A screwdriver bit processing and forging machine according to claim 1, characterized in that: A through hole (21) is provided on the middle side wall of the piston cylinder (18); and a first spring (22) is fixedly connected between the top end of the piston rod (19) and the piston cylinder (18).

3. A screwdriver bit processing and forging machine according to claim 2, characterized in that: The bottom end of the piston rod (19) is fixedly connected to a vertical rod (31); a groove (32) is provided on the vertical rod (31); a support (33) is fixedly connected to the bottom of the piston cylinder (18); a sliding groove is provided on the side of the support (33); a clamping block (34) is slidably connected in the sliding groove; a second spring is fixedly connected between the clamping block (34) and the side wall of the sliding groove.

4. A screwdriver bit processing and forging machine according to claim 3, characterized in that: A support rod (41) is fixedly connected to the bottom of the base (15); the support rod (41) passes through the bottom of the mold cavity and is slidably connected thereto; a third spring (42) is fixedly connected between the base (15) and the bottom side of the mold cavity; and a protrusion (43) is provided on the inner wall of the mold cavity.

5. The screwdriver bit processing and forging machine according to claim 2, characterized in that: A guide rod (51) is fixedly connected to the bottom of the upper mold (13); and a guide hole (52) is provided on the lower mold (14) at a position corresponding to the guide rod (51).

6. A screwdriver bit processing and forging machine according to claim 2, characterized in that: The lower mold (14) is provided with two material guide grooves (6); the material guide grooves (6) are arranged in an inclined manner; and the two material guide grooves (6) are symmetrically arranged on both sides of the mold cavity.

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