A hot forging die for automobile transmission sleeve
By designing hot forging molds for automotive variable speed sleeves, including demolding mechanisms and fixing devices, the problem that existing molds cannot be automatically demolded and clamped and fixed is solved, automatic demolding of workpieces and stable clamping of molds is achieved, and product quality and processing accuracy are improved.
Patent Information
- Application Number
- CN202421256622.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing hot forging molds used in automotive gearboxes cannot be automatically released, and cannot be effectively clamped and fixed during the forging process, resulting in workpiece jamming and mold deformation.
A hot forging mold including a base plate, a support frame, a sliding sleeve, a cylinder, a support plate, a sliding guide rod, a hot forging head, a fixing device and a mold release mechanism are designed. By setting up a demolding mechanism and fixing device, automatic demolding of the workpiece and clamping and fixing of the mold are realized.
Automatic mold release of the workpiece is achieved, manual intervention is reduced, and product quality is improved. At the same time, through clamping and fixing, the mold is avoided unexpected movement and loosening, ensuring processing accuracy and quality.
Smart Images
Figure CN222695930U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile transmission sleeves, in particular to a hot forging die for automobile transmission sleeves. Background Art
[0002] In the automobile manufacturing industry, hot forging is a forging method used in automobile manufacturing. Hot forging is a forging process performed above the metal recrystallization temperature. During forging, the deformed metal flows violently and the forging is in contact with the die for a long time. Therefore, the die material is required to have high thermal stability, high temperature strength and hardness, impact toughness, thermal fatigue resistance and wear resistance and be easy to process. Hot forging dies with lighter workloads can be made of low-alloy steel. In automobile manufacturing, a hot forging die is often required to forge high-temperature metal parts during the hot forging process. Common types of hot forging dies include composite hot forging dies and single hot forging dies. Different types of hot forging dies are suitable for different application scenarios.
[0003] However, most hot forging dies for automobile transmission sleeves cannot automatically demold the hot forged workpiece after hot forging, which causes the hot forged workpiece to be stuck in the die groove and needs to be removed manually, which is a very troublesome process. In addition, during the forging process, the high temperature and pressure of the hot forging will cause the load-bearing die to deform and deviate, and it is impossible to effectively clamp and fix it during die casting. Utility Model Content
[0004] In order to solve the problem that the existing hot forging dies cannot be automatically demoulded and cannot be clamped and fixed; the purpose of the utility model is to provide a hot forging die for an automobile transmission sleeve.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a hot forging die for a vehicle transmission sleeve, comprising a bottom plate, two ends of the bottom plate are fixedly connected to a support frame, both sides of the top of the support frame are provided with sliding sleeves, a cylinder is fixedly provided at the top of the bottom plate, the output end of the cylinder is fixedly connected to the support plate, both sides of the top of the support plate are fixedly connected to sliding guide rods, the two sliding guide rods respectively penetrate two sliding sleeves, the bottom end of the support plate is fixedly connected to a hot forging head, and the outer surfaces of both sides of the top of the bottom plate are A fixing device is fixedly installed, and a demolding mechanism is fixedly arranged between the two fixing devices, and the demolding mechanism includes a mold pressing plate, a hot forging groove is provided at the top of the mold pressing plate, four spring shafts are fixedly arranged on the outer surface of the middle part of the top of the bottom plate, and the tops of the four spring shafts are fixedly connected with a top plate, a pressure rod is fixedly connected with one side of the top of the top plate, a slot is provided on the upper outer surface of the top plate, and the outer surface of the slot is engaged with the lower outer surface of the mold pressing plate, and ejector pins are fixedly connected to both sides of the top of the top plate, and the two ejector pins pass through the hot forging groove.
[0006] Preferably, the fixing device includes a fixing seat, the bottom end of the fixing seat is fixedly connected to the bottom plate, the outer surface of the fixing seat is provided with a through groove, the outer surfaces on both sides of the top of the fixing seat are provided with sliding grooves, the outer surfaces of the two sliding grooves are slidably connected with sliding rails, the tops of the two sliding rails are commonly fixedly connected with a fixing block, the top of the fixing block is provided with a through transmission groove, the bottom sides of the support plate are fixedly connected with transmission rods, and the tops of the two transmission rods are commonly fixedly connected to the bottom end of the support plate.
[0007] Compared with the prior art, the beneficial effects of the utility model are:
[0008] 1. The utility model provides a demoulding mechanism, so that the equipment can automatically demould the workpiece after forging is completed, reducing manual intervention in demoulding, reducing human damage to the workpiece and the mold, and improving product quality.
[0009] 2. The utility model can clamp and fix the mold during the processing by setting a fixing device, avoiding accidental movement and looseness during the processing, and ensuring the accuracy and quality of the processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0011] Figure 1 It is a schematic diagram of the structure of the utility model.
[0012] Figure 2 It is a schematic diagram of the structure of the demolding mechanism of the utility model.
[0013] Figure 3 This is a schematic diagram of the structure of the fixing device of the utility model.
[0014] In the figure: 1, bottom plate; 2, support frame; 21, sliding sleeve; 3, fixing device; 4, demoulding mechanism; 5, support plate; 51, sliding guide rod; 6, cylinder; 7, hot forging head; 41, die plate; 42, hot forging groove; 43, spring shaft; 44, top plate; 45, pressure rod; 46, ejector pin; 47, slot; 31, fixing seat; 32, through slot; 33, slide slot; 34, slide rail; 35, fixing block; 36, transmission slot; 37, transmission rod. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] Embodiment 1: Figure 1-3As shown, the utility model provides a hot forging die for a transmission sleeve of an automobile, comprising a bottom plate 1, a support frame 2 being fixedly connected to both ends of the bottom plate 1, a sliding sleeve 21 being arranged on both sides of the top of the support frame 2, a cylinder 6 being fixedly arranged on the top of the bottom plate 1, a support plate 5 being fixedly connected to the output end of the cylinder 6, a sliding guide rod 51 being fixedly connected to both sides of the top of the support plate 5, two sliding guide rods 51 respectively passing through two sliding sleeves 21, a hot forging press head 7 being fixedly connected to the bottom end of the support plate 5, fixing devices 3 being fixedly installed on the outer surfaces of both sides of the top of the bottom plate 1, a demoulding mechanism 4 being fixedly arranged between the two fixing devices 3, the two fixing devices 3 being distributed in a mirror image, and the fixing devices 3 being in a mirror image serve to facilitate the hot forging press head 7 During the pressing process, the demoulding mechanism 4 is clamped in the opposite direction, the center point of the hot forging ram 7 is on the same horizontal line as the center point of the demoulding mechanism 4, the demoulding mechanism 4 includes a die pressing plate 41, a hot forging groove 42 is provided on the top of the die pressing plate 41, four spring shafts 43 are fixedly provided on the outer surface of the middle part of the top of the bottom plate 1, the four spring shafts 43 are distributed in a rectangular array, the top ends of the four spring shafts 43 are fixedly connected to a top plate 44, the spring shafts 43 distributed in a rectangular array provide a space for the top plate 44 to descend and a force to support the top plate 44 to lift, a pressure rod 45 is fixedly connected to one side of the top end of the top plate 44, a card slot 47 is provided on the upper outer surface of the top plate 44, and the outer surface of the card slot 47 is embedded in the lower outer surface of the die pressing plate 41 The top of the ejector plate 44 is connected together, and both sides of the top of the ejector plate 44 are fixedly connected with ejector pins 46. The two ejector pins 46 are distributed in a mirror image. The height of the pressure rod 45 is higher than that of the two ejector pins 46. The two ejector pins 46 distributed in a mirror image are for the convenience of ejecting the die-cast workpiece with the same balanced force. The raised pressure rod 45 is for the convenience of the cylinder 6 to keep the top of the two ejector pins 46 in the plane with the hot forging groove 42 through pressure before contacting the workpiece. The two ejector pins 46 both penetrate the hot forging groove 42. When hot forging is required, the heated embryo is placed on the mold plate 41 in the demoulding mechanism 4, and the cylinder 6 is started. The output end of the cylinder 6 drives the support plate 5 and the hot forging head 7 to press down. When the downward pressure is against the top of the pressure rod 45, the The top plate 44 is pressed down by the four spring shafts 43 at the bottom end. The pressed top plate 44 disengages from the slot 47 and drives the two ejectors 46 penetrating the die plate 41 to descend. When it descends to a certain extent, the top ends of the two ejectors 46 are flush with the outer surface of the hot forging groove 42. At this time, the hot forging ram 7 that continues to press down will die-cast the embryo through the hot forging groove 42. After forming, the cylinder 6 retracts the output end. At this time, the four spring shafts 43 at the top end of the bottom plate 1 eject the top plate 44 through their own force. The ejected top plate 44 drives the two ejectors 46 to be ejected from the outer surface of the hot forging groove 42 again, so that the die-cast workpiece is separated from the hot forging groove 42 by the ejection of the two ejectors 46, thereby achieving the purpose of automatic demolding.
[0017] The fixing device 3 includes a fixing seat 31, the bottom end of the fixing seat 31 is fixedly connected to the bottom plate 1, a through groove 32 is provided on the outer surface of the fixing seat 31, and slide grooves 33 are provided on the outer surfaces of both sides of the top of the fixing seat 31. The outer surfaces of the two slide grooves 33 are slidably connected with slide rails 34, and the tops of the two slide rails 34 are fixedly connected with a fixing block 35. The top of the fixing block 35 is provided with a through transmission groove 36. The bottom ends of the support plate 5 are fixedly connected with transmission rods 37 on both sides, and the tops of the two transmission rods 37 are fixedly connected to the bottom ends of the support plate 5. When fixing is required, during the downward pressing process, the output end of the cylinder 6 also drives The transmission rods 37 on both sides of the support plate 5 descend, and the descending transmission rods 37 enter the two transmission grooves 36. When the two transmission rods 37 descend to the inclined surfaces on both sides of the transmission grooves 36, the two transmission rods 37 extrude the two fixed blocks 35 under the action of force through the descending force. The extrusion force slides horizontally between the two slide grooves 33 through the two slide rails 34 at the bottom. The through groove 32 is for the convenience of the transmission rod 37 to continue to move downward under the pressure of the cylinder 6. The two fixed blocks 35 that slide horizontally in opposite directions clamp and fasten the two ends of the molding plate 41 in the demolding mechanism 4, thereby achieving the purpose of clamping and fixing.
[0018] The outer surfaces of the two sliding guide rods 51 are slidably fitted with the inner walls of the two sliding sleeves 21 , and the sliding guide rods 51 and the sliding sleeves 21 play a role in stabilizing the downward pressure and upward movement of the support plate 5 and the hot forging ram 7 .
[0019] The outer surfaces of both sides of the two transmission rods 37 are inclined, and the inner walls of both sides of the two transmission grooves 36 are inclined. The two transmission grooves 36 and the two transmission rods 37 are used in conjunction with each other. The inclined groove surfaces convert the downward pressure force into a lateral movement force, thereby driving the two fixed blocks 35 to move toward each other.
[0020] Working principle: when hot forging is required, the heated embryo is placed on the die plate 41 in the demoulding mechanism 4, and the cylinder 6 is started. The output end of the cylinder 6 drives the support plate 5 and the hot forging head 7 to press down. When the downward pressure is against the top of the pressure rod 45, the top plate 44 is pressed down through the four spring shafts 43 at the bottom end. The pressed top plate 44 is separated from the slot 47 and drives the two ejectors 46 that penetrate the die plate 41 to descend. When it descends to a certain extent, the top ends of the two ejectors 46 are flush with the outer surface of the hot forging groove 42. At this time, the hot forging head 7 that continues to press down will die-cast the embryo through the hot forging groove 42. After forming, the cylinder 6 retracts the output end. At this time, the four spring shafts 43 at the top of the bottom plate 1 eject the top plate 44 through their own force. The ejected top plate 44 drives the two ejectors 46 to be ejected from the outer surface of the hot forging groove 42 again, so that the die-cast workpiece is separated from the hot forging groove 42 under the ejection of the two ejectors 46, thereby achieving the purpose of automatic demoulding.
[0021] When fixing is required, during the pressing process, the output end of the cylinder 6 also drives the transmission rods 37 on both sides of the support plate 5 to descend, and the descending transmission rods 37 enter the two transmission grooves 36. When the two transmission rods 37 descend to the inclined surfaces on both sides of the transmission grooves 36, through the downward force, the two transmission rods 37 extrude the two fixing blocks 35 under the action of force, and the extrusion force slides horizontally between the two slide grooves 33 through the two slide rails 34 at the bottom. The through groove 32 is to facilitate the transmission rod 37 to continue to move downward under the pressure of the cylinder 6. The two fixing blocks 35 that slide horizontally in opposite directions clamp and fasten the two ends of the molding plate 41 in the demolding mechanism 4, thereby achieving the purpose of clamping and fixing.
[0022] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
Claims
1. A hot forging die for a vehicle transmission sleeve, comprising a base plate (1), characterized in that: The two ends of the bottom plate (1) are fixedly connected to a support frame (2), both sides of the top of the support frame (2) are provided with sliding sleeves (21), the top of the bottom plate (1) is fixedly provided with a cylinder (6), the output end of the cylinder (6) is fixedly connected to a support plate (5), both sides of the top of the support plate (5) are fixedly connected to sliding guide rods (51), the two sliding guide rods (51) respectively penetrate the two sliding sleeves (21), the bottom end of the support plate (5) is fixedly connected to a hot forging head (7), the outer surfaces of both sides of the top of the bottom plate (1) are fixedly installed with fixing devices (3), and a demoulding mechanism (4) is fixedly provided between the two fixing devices (3); The demoulding mechanism (4) comprises a die pressing plate (41), a hot forging groove (42) is provided at the top of the die pressing plate (41), four spring shafts (43) are fixedly provided on the outer surface of the middle part of the top of the bottom plate (1), the tops of the four spring shafts (43) are fixedly connected to a top plate (44), one side of the top of the top plate (44) is fixedly connected to a pressure rod (45), a groove (47) is provided on the upper outer surface of the top plate (44), the outer surface of the groove (47) is engaged with the lower outer surface of the die pressing plate (41), and ejector pins (46) are fixedly connected to both sides of the top of the top plate (44), and the two ejector pins (46) both penetrate the hot forging groove (42).
2. A hot forging die for a vehicle transmission sleeve as claimed in claim 1, characterized in that: The fixing device (3) comprises a fixing seat (31), the bottom end of the fixing seat (31) is fixedly connected to the bottom plate (1), the outer surface of the fixing seat (31) is provided with a through groove (32), the outer surfaces of both sides of the top of the fixing seat (31) are provided with sliding grooves (33), the outer surfaces of the two sliding grooves (33) are slidably connected with sliding rails (34), the top ends of the two sliding rails (34) are fixedly connected with a fixing block (35), the top end of the fixing block (35) is provided with a through transmission groove (36), the bottom ends of the support plate (5) are fixedly connected with transmission rods (37) on both sides, and the top ends of the two transmission rods (37) are fixedly connected with the bottom end of the support plate (5).
3. The hot forging die for automobile transmission sleeve according to claim 1, characterized in that: The four spring shafts (43) are distributed in a rectangular array.
4. The hot forging die for automobile transmission sleeve according to claim 1, characterized in that: The two ejector pins (46) are distributed in a mirror image, and the height of the pressure rod (45) is higher than the height of the two ejector pins (46).
5. The hot forging die for automobile transmission sleeve according to claim 1, characterized in that: The outer surfaces of the two sliding guide rods (51) are slidably fitted with the inner walls of the two sliding sleeves (21).
6. The hot forging die for automobile transmission sleeve according to claim 1, characterized in that: The center point of the hot forging ram (7) and the center point of the demoulding mechanism (4) are on the same horizontal line.
7. A hot forging die for a vehicle transmission sleeve as claimed in claim 2, characterized in that: The outer surfaces on both sides of the two transmission rods (37) are both inclined, and the inner walls on both sides of the two transmission grooves (36) are both inclined. The two transmission grooves (36) and the two transmission rods (37) are used in coordination.
8. The hot forging die for automobile transmission sleeve according to claim 1, characterized in that: The two fixing devices (3) are distributed in a mirror image.