CN116441413A - Hot precision forging punching die for gearbox combined teeth of electric vehicle - Google Patents

Abstract

The invention belongs to the technical field of finish forging punching dies, and discloses a hot finish forging punching die for a gearbox combined tooth of an electric vehicle, which comprises a combined tooth, wherein the combined tooth comprises a hydraulic connecting rod, the lower surface of the hydraulic connecting rod is fixedly connected with a lower pressing plate, a supporting bottom plate is arranged right below the lower pressing plate, a plurality of sliding columns are fixedly connected onto the supporting bottom plate, the sliding columns penetrate through the lower pressing plate, and the lower pressing plate slides on the sliding columns; when the lower pressing plate is pressed down, the clamping mechanism is driven to move, the outer surfaces of the combination teeth are clamped and fixed, and the position can be determined in advance through the positioning mechanism, so that the situation that the meshing extrusion teeth are extruded to the gear teeth in the clamping process is prevented, the clamping is completed mechanically, the positions of the combination teeth in the clamping process are not changed, the occurrence of defective products is greatly reduced, the loss of cost is reduced, and the punching efficiency is improved.

Description

A hot precision forging punching die for electric vehicle gearbox combined with gear

technical field

The invention belongs to the technical field of precision forging punching dies, in particular to a thermal precision forging punching die for electric vehicle gearbox combined with teeth.

Background technique

The coupling gear part is a key component in the gearbox. It plays a role of synchronizing between the driven gear and the synchronizer and reducing the impact of shifting. In the process of processing the coupling gear, there are many steps, such as drilling It is also one of the processes of combined tooth processing. In some smaller factories, due to the small demand for combined teeth, it is not an ideal choice to choose some large-scale automatic punching equipment. Choose some low-cost small equipment to punch holes. When punching the combined teeth, the usual method is to place the combined teeth on the punching die, use a hydraulic press to punch the punching die, and let the combined teeth be punched. holes, but the existing small punching dies do not have a fixed structure corresponding to the coupling teeth when punching holes. Usually people just place the coupling teeth at the approximate position of the punching die and place them on the punching platform. There is an approximate center of the positioning circle. People hold the coupling teeth with their hands and place them against the approximate position, and then stamp the coupling teeth. Because people's hands will shake, during the stamping process, they may As a result, the position of the punching hole changes, leading to the appearance of defective products, which increases the loss of cost and reduces the efficiency of punching. For this, we propose a punching die for electric vehicle gearbox combined with tooth hot precision forging.

Contents of the invention

In order to solve the problems raised in the above-mentioned background technology, the present invention provides a hot precision forging punching die for the combined teeth of the electric vehicle gearbox. It greatly reduces the occurrence of defective products, reduces the loss of cost, and improves the efficiency of punching.

In order to achieve the above object, the present invention provides the following technical solutions: a hot precision forging punching die for electric vehicle gearbox combined with teeth, including combined teeth, including a hydraulic connecting rod, the lower surface of the hydraulic connecting rod is fixedly connected with a lower pressure plate, the lower pressure plate There is a support base plate directly below the support base plate, and several sliding columns are fixedly connected to the support base plate. The sliding column passes through the lower pressing plate, and the lower pressing plate slides on the sliding column. The surface is fixedly connected with a stamping platform, and a clamping mechanism is set on the stamping platform. The clamping mechanism clamps the combined teeth through the downward pressure of the lower pressing plate. A waste collection box is set on the supporting base plate. Structure, the combination tooth is located on the positioning structure, the punching drill bit is located directly above the center of the combination tooth circle, and the hydraulic connecting rod is fixedly connected with the external hydraulic machine.

Preferably, the clamping mechanism includes a limit connection column, which passes through the lower platen and is slidably connected, and the lower surface of the limit connection column is fixedly connected with the stamping platform, and a second chute is provided on the limit connection column. The inner wall of the second chute is slidingly connected with a second push slider, the upper surface of the second push slider is fixedly connected with the lower surface of the lower pressing plate, the second push slider is connected with a connecting rod in rotation, and the other end of the connecting rod is connected in rotation There is a first push slider, which slides on the stamping platform, and a sliding plate is slidably connected to the stamping platform, and the second push slider pushes the first push slider and the outer surface of the slide plate to squeeze when sliding down.

Preferably, the end of the sliding plate away from the first push slider is fixedly connected with an extrusion plate, the end of the extrusion plate away from the sliding plate is fixedly connected with engaging extrusion teeth, and one side of the limit connecting column is fixedly connected with a spring telescopic tube, The other end of the spring telescopic tube is fixedly connected with the slide plate.

Preferably, the stamping platform is provided with a first chute, the first pushing slider slides inside the first chute, and the sliding plate also slides inside the first chute.

Preferably, the engaging pressing teeth are pressed against the outer surfaces of the combined teeth when the sliding plate is pushed.

Preferably, the positioning structure includes a connecting plate, and the stamping platform is provided with a slot for fixing the connecting plate, and the connecting plate is fixedly connected on the stamping platform, and the connecting plate is provided with a first waste drain groove, and the stamping platform is provided with a second waste drain groove. A slot hole with the same size as the waste drain, the upper surface of the connection plate is fixedly connected with positioning teeth, and the positioning teeth are used for positioning the combined teeth.

Preferably, the waste material collection box includes a box body, the inside of the box body is hollow, the inner wall of the box body is fixedly connected with a tapered block, the box body is provided with a second waste material lower drain, and the second waste material lower drain groove is located at the first Right below the waste material lower drain, the tapered block is located directly below the second waste lower drain, and the box body is slidably connected with a drawer.

Preferably, the limit connection column is fixedly connected with an anti-prolapse block, the size of the anti-prolapse block is greater than the size of the hole on the lower pressure plate for the limit connection column to slide, the sliding plate is equal to the width of the limit connection column, and the first push slide The width of block will be less than the width of slide plate, and the first push slide block slides between two groups of spring telescopic tubes.

Preferably, the spring telescopic tube is in a stretched state when the sliding plate is squeezed.

Preferably, the outer surface of the tapered block is smooth.

Compared with the prior art, the beneficial effects of the present invention are as follows:

In the present invention, when stamping the coupling teeth, the lower pressing plate is pressed down to drive the movement of the clamping mechanism to clamp and fix the outer surface of the coupling teeth, and the position can be determined in advance through the provided positioning mechanism , to prevent the meshing extrusion teeth from being squeezed into the gear teeth during the clamping process, and complete the clamping mechanically, so that the position of the coupling teeth will not change during the clamping process, greatly reducing the occurrence of defective products , reduce the loss of cost and improve the efficiency of punching.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a side view sectional view of the structure of the present invention;

Fig. 3 is a partial schematic view of the clamping mechanism of the present invention;

Fig. 4 is a schematic diagram of the clamping mechanism of the present invention;

Fig. 5 is a schematic diagram of the positioning structure of the present invention;

Fig. 6 is an exploded side view of the waste collection box of the present invention.

In the figure: 1. Punching drill bit; 2. Hydraulic connecting rod; 3. Sliding column; 4. Lower pressing plate; 5. Clamping mechanism; 6. Stamping platform; 7. Supporting bottom plate; 8. Waste collection box; Structure; 61, the first chute; 51, extrusion plate; 52, sliding plate; 53, meshing extrusion teeth; 54, first push slider; 55, spring telescopic cylinder; 56, connecting rod; 57, second Push the slider; 58, the second chute; 59, the limit connecting column; 91, the first waste material lower drain; 92, the positioning tooth; 93, the connection plate; 81, the tapered block; 82, the box; 83, The second waste material lower drain; 84, pull the drawer.

Implementation

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 6, the present invention provides a hot precision forging punching die for combined teeth of electric vehicle gearbox, including combined teeth, including a hydraulic connecting rod 2, and a lower pressure plate 4 is fixedly connected to the lower surface of the hydraulic connecting rod 2 , a support base plate 7 is arranged directly below the lower platen 4, and several sliding columns 3 are fixedly connected to the support base plate 7, the sliding columns 3 pass through the lower platen 4, the lower platen 4 slides on the sliding column 3, and the lower platen 4 The surface is fixedly connected with a punching drill 1, and the upper surface of the support base 7 is fixedly connected with a stamping platform 6. A clamping mechanism 5 is arranged on the stamping platform 6, and the clamping mechanism 5 clamps the combined teeth through the pressing down of the lower pressing plate 4. , a waste collection box 8 is arranged on the support base plate 7, a positioning structure 9 is fixedly connected to the upper surface of the stamping platform 6, the combined teeth are located on the positioning structure 9, the punching drill bit 1 is located directly above the center of the combined teeth circle, and the hydraulic connecting rod 2 It is fixedly connected with the external hydraulic press.

The structure in this application document is only aimed at the clamping and punching of a single type of combined teeth, and the positioning teeth 92 on the positioning structure 9 are pre-set according to this type of combined teeth, so that the positioning teeth 92 can be set in advance. When the position of the combined teeth is fixed, when the clamping mechanism 5 clamps the combined teeth, the meshing extrusion teeth 53 are completely engaged with the teeth of the combined teeth, so that the clamping and fixing can be carried out better, and the punching can be prevented. The displacement of the hole.

Further, the clamping mechanism 5 includes a limit connection column 59, which runs through the lower platen 4 and is slidably connected. There is a second chute 58, the inner wall of the second chute 58 is slidably connected with a second push slider 57, the upper surface of the second push slider 57 is fixedly connected with the lower surface of the lower pressing plate 4, and the upper surface of the second push slider 57 A connecting rod 56 is connected in rotation, and the other end of the connecting rod 56 is connected with a first push slider 54 in rotation, and the first push slider 54 slides on the punching platform 6, and the sliding plate 52 is slidably connected on the punching platform 6, and the second pushes The slider 57 pushes the first pushing slider 54 to squeeze with the outer surface of the sliding plate 52 when sliding down.

Further, the end of the sliding plate 52 far away from the first push slider 54 is fixedly connected with an extrusion plate 51, and the end of the extrusion plate 51 away from the sliding plate 52 is fixedly connected with an engaging extrusion tooth 53, and one side of the limit connecting column 59 A spring telescopic tube 55 is fixedly connected, and the other end of the spring telescopic tube 55 is fixedly connected with the sliding plate 52 .

Further, the stamping platform 6 is provided with a first chute 61, the first push slider 54 slides inside the first chute 61, the sliding plate 52 also slides inside the first chute 61, the first chute 61 It is used to limit the movement tracks of the first push slider 54 and the sliding plate 52 for better clamping.

Further, when the sliding plate 52 pushes the meshing extrusion teeth 53 and the outer surface of the composite teeth, the outer surface of the meshing extrusion teeth 53 matches the shape of the outer surface of the composite teeth, so that the extrusion clamping can be carried out well. hold.

Further, the positioning structure 9 includes a connecting plate 93, and the stamping platform 6 is provided with a slot for fixing the connecting plate 93, and the connecting plate 93 is fixedly connected on the stamping platform 6, and the connecting plate 93 is provided with a first waste drain 91 , the stamping platform 6 is provided with a slot equal in size to the first waste drain 91, and the upper surface of the connection plate 93 is fixedly connected with a positioning tooth 92, which is used for positioning the combined tooth, and the positioning tooth 92 is based on the The resulting size was designed and produced.

Further, the waste collection box 8 includes a box body 82, the inside of the box body 82 is hollow, the inner wall of the box body 82 is fixedly connected with a tapered block 81, the box body 82 is provided with a second waste material lower drain 83, the second The waste material lower drain 83 is located directly below the first waste material lower drain 91 , the tapered block 81 is located directly below the second waste lower drain 83 , and the box body 82 is slidably connected with a drawer 84 .

Further, the limit connecting column 59 is fixedly connected with an anti-prolapse block, and the size of the anti-prolapse block is larger than the size of the hole on the lower platen 4 for the limit connecting column 59 to slide, and the sliding plate 52 is equal to the width of the limit connecting column 59 , the width of the first push slider 54 is smaller than the width of the slide plate 52 , and the first push slider 54 slides between the two sets of spring telescopic tubes 55 .

Further, the spring telescopic tube 55 is in a stretched state when the sliding plate 52 is squeezed, and after the sliding plate 52 loses the squeezing force, the spring telescopic tube 55 will drive the sliding plate 52 to return to its original position.

Further, the outer surface of the tapered block 81 is smooth, which can disperse the waste materials to the surroundings when the waste materials leak down, so as to prevent the waste materials from concentrating and accumulating in the box body 82 .

Principle of work of the present invention and use process:

In the present invention, when stamping the combined tooth, people take out the combined tooth to be punched, align the tooth groove of the combined tooth with the position of the positioning tooth 92, clamp the tooth groove in the positioning tooth 92, and then place the combined tooth Place it on the top of the connecting plate 93, and then people start the hydraulic machine to work, driving the hydraulic connecting rod 2 to push down, to push the lower pressing plate 4 to press down, and when the lower pressing plate 4 is pressed down, it pushes the second pushing slider 57 down. Pressing, to drive the movement of the connecting rod 56, driving the first push slider 54 to slide, to squeeze the sliding plate 52 to slide, with the continuous downward pressure, the sliding plate 52 is squeezed to the outer surface of the joint teeth , because the coupling teeth are placed in the positioning teeth 92, the position is limited in advance, when the extrusion plate 51 squeezes the coupling teeth, the engaging extrusion teeth 53 can be completely engaged in the tooth grooves of the coupling teeth. Squeeze and clamp the coupling teeth. After clamping, the punching drill bit 1 punches the center of the coupling teeth, and then the discarded material passes through the first waste material lower drain 91 and the second waste material lower drain 83. The leak is inside the box body 82 for centralized collection, and due to the set conical block 81, the falling waste can be dropped to the surroundings, preventing the waste from being concentrated and accumulated in the box body 82, and completing the combination of teeth. Punching process, when people process the waste in the box body 82, people can pull the drawer 84 to pour out the waste inside for cleaning. Movement, to clamp and fix the outer surface of the combined teeth, and through the positioning structure 9 provided, the position can be determined in advance to prevent the meshing extrusion teeth 53 from being squeezed into the gear teeth during the clamping process , The mechanized clamping is completed, so that the position of the coupling teeth will not change during the clamping process, which greatly reduces the occurrence of defective products, reduces the loss of cost, and improves the efficiency of punching.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. A hot precision forging punching die for combined teeth of electric vehicle gearbox, including combined teeth, characterized in that it includes a hydraulic connecting rod (2), and the lower surface of the hydraulic connecting rod (2) is fixedly connected with a lower pressure plate ( 4), a supporting base plate (7) is provided directly under the lower pressing plate (4), and several sliding columns (3) are fixedly connected to the supporting base plate (7), and the sliding columns (3) pass through the lower Pressing plate (4), the lower pressing plate (4) slides on the sliding column (3), the lower surface of the lower pressing plate (4) is fixedly connected with a punching drill (1), and the upper supporting base (7) A stamping platform (6) is fixedly connected to the surface, and a clamping mechanism (5) is arranged on the stamping platform (6), and the clamping mechanism (5) clamps the combined teeth by pressing down the lower pressing plate (4) , the support bottom plate (7) is provided with a waste material collection box (8), the upper surface of the stamping platform (6) is fixedly connected with a positioning structure (9), and the combined teeth are located on the positioning structure (9), so The punching drill bit (1) is located directly above the center of the combined tooth circle, and the hydraulic connecting rod (2) is fixedly connected to the external hydraulic machine. 2. A hot precision forging punching die for electric vehicle gearbox combined with gears according to claim 1, characterized in that: the clamping mechanism (5) includes a limit connection column (59), and the limit connection The column (59) passes through the lower platen (4) and is slidably connected. The lower surface of the limiting connecting column (59) is fixedly connected with the stamping platform (6), and the limiting connecting column (59) is provided with a second The chute (58), the inner wall of the second chute (58) is slidably connected with the second push slider (57), the upper surface of the second push slider (57) is connected with the lower platen (4) The surface is fixedly connected, the second push slider (57) is rotatably connected with a connecting rod (56), and the other end of the connecting rod (56) is rotatably connected with a first push slider (54), and the first The pushing slider (54) slides on the stamping platform (6), and the sliding plate (52) is slidably connected to the stamping platform (6), and the second pushing slider (57) pushes the first pushing slider when sliding down. The block (54) is extruded against the outer surface of the slide plate (52). 3. A hot precision forging punching die for an electric vehicle gearbox combined with gears according to claim 2, characterized in that: the end of the sliding plate (52) away from the first pushing slider (54) is fixedly connected with a squeeze Pressing plate (51), the end of the pressing plate (51) far away from the sliding plate (52) is fixedly connected with engaging extrusion teeth (53), and one side of the limiting connecting column (59) is fixedly connected with a spring telescopic cylinder (55), the other end of the spring telescopic cylinder (55) is fixedly connected with the sliding plate (52). 4. A hot precision forging punching die for an electric vehicle gearbox combined with gears according to claim 2, characterized in that: the stamping platform (6) is provided with a first chute (61), and the first The sliding block (54) is pushed to slide inside the first chute (61), and the sliding plate (52) also slides inside the first chute (61). 5. A hot precision forging punching die for combined gears of an electric vehicle gearbox according to claim 3, characterized in that: when the sliding plate (52) pushes the meshing extrusion teeth (53) and the outer surface of the combined teeth The surfaces are pressed against each other. 6. The hot precision forging punching die for electric vehicle gearbox combined with gears according to claim 1, characterized in that: the positioning structure (9) includes a connecting plate (93), on the stamping platform (6) There are slots for fixing the connection plate (93), the connection plate (93) is fixedly connected to the stamping platform (6), and the connection plate (93) is provided with a first waste drain (91), The stamping platform (6) is provided with a slot equal in size to the first waste drain (91), and the upper surface of the connection plate (93) is fixedly connected with positioning teeth (92), and the positioning teeth ( 92) It is used to locate the combined teeth. 7. A hot precision forging punching die for an electric vehicle gearbox combined with gears according to claim 1, characterized in that: the waste collection box (8) includes a box body (82), and the box body (82) The inside of the box is hollow, and the inner wall of the box (82) is fixedly connected with a tapered block (81), and the box (82) is provided with a second waste drain (83), and the second waste The lower drain (83) is located directly below the first waste lower drain (91), the tapered block (81) is located directly below the second waste lower drain (83), and the box (82) Slidingly connected with pull-out drawer (84). 8. A hot precision forging punching die for an electric vehicle gearbox combined with gears according to claim 2, characterized in that: said limit connecting column (59) is fixedly connected with an anti-extrusion block, and said anti-extrusion block The size of the hole on the lower pressure plate (4) for the sliding of the limiting connecting column (59) is equal to the width of the sliding plate (52) and the limiting connecting column (59), and the first pushing slider ( 54) is smaller than the width of the sliding plate (52), and the first push slider (54) slides between two sets of spring telescopic tubes (55). 9. A hot precision forging punching die for electric vehicle gearbox combined with gears according to claim 3, characterized in that: the spring telescopic cylinder (55) is in a stretched state when the sliding plate (52) is squeezed . 10. The electric vehicle gearbox combined gear hot precision forging punching die according to claim 7, characterized in that: the outer surface of the tapered block (81) is smooth.