Gear precision forge piece smooth in transmission

Abstract

The utility model discloses a gear precision forge piece smooth in transmission, and relates to the technical field of machine manufacturing. A left forge piece body and a right forge piece body are arranged on an operation table; a moving frame is fixed on the operating table, a moving mechanism is arranged in the moving frame, a hydraulic machine is connected below the moving mechanism, and the movable end of the hydraulic machine is connected with a pressure head; the rotating motors are fixed to the left and right of the upper end of the operation table through supports. The gears are respectively connected with output shafts of the rotating motors; the gear rings are respectively meshed with the gears; the gear ring is screwed on the operation table through a bearing; the dies are respectively sleeved and fixed in the gear rings; the precision of the teeth of the left mold is lower than that of the teeth of the right mold; the forge piece can be rotationally moved out, so that the forge piece is conveniently taken out and is prevented from being clamped in the die; the precision of the teeth of the left die is lower than that of the teeth of the right die, the precision of the forge piece is higher through two times of stamping, and a gear finally formed by the forge piece is smooth in transmission; gears with different apertures can be conveniently moved, the application range is wider, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a precision forging of a gear with smooth transmission. Background Art

[0002] When manufacturing gears through forging, the material tube needs to be forged through a hydraulic press. However, for gears with relatively high precision requirements, especially arc-shaped teeth, it is not easy to remove them directly from the die. In addition, the one-time forging of the gears will result in some teeth with insufficient precision and other parts of the gear with excessive rigidity. For gears with different apertures, it is also necessary to replace the parts used to fix the gears on the hydraulic press. For this reason, a precision forging of gears with smooth transmission is proposed. Utility Model Content

[0003] The purpose of the utility model is to address the defects and shortcomings of the existing technology and provide a precision gear forging with smooth transmission. The forging can be rotated and moved out, making it easy to take out the forging and avoiding the forging being stuck in the mold; the precision of the teeth of the left mold is lower than the precision setting of the teeth of the right mold, the double stamping makes the precision of the forging higher, and the gear transmission of the final forging is smooth; it is easy to move gears of different apertures, has a wider range of use, and improves practicality.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: it comprises a forging body, an operating table, a movable frame, a hydraulic press and a pressing head; the left and right forging bodies are arranged on the operating table; the movable frame is fixed to the operating table, the movable frame has a built-in movable mechanism, the lower part of the movable mechanism is connected to the hydraulic press, and the movable end of the hydraulic press is connected to the pressing head;

[0005] It also contains:

[0006] The rotating mechanism is arranged on the operating table and comprises:

[0007] Rotating motors, there are two rotating motors, and they are fixed to the left and right ends of the upper end of the operating table through brackets respectively;

[0008] Gears, there are two gears, and each of them is connected to the output shaft of the rotating motor;

[0009] There are two gear rings, each of which is meshed with the gears; the gear rings are screwed onto the operating table via bearings;

[0010] The molds are two in number and are respectively fixed in the gear ring; the precision of the teeth of the left mold is lower than that of the teeth of the right mold;

[0011] The fixing mechanism is arranged in the pressure head.

[0012] Preferably, there is a downward ring groove No. 1 at the bottom of the mold, and a ring groove No. 2 is opened on the inner side of the ring groove No. 1; the fixed ring is embedded in the ring groove No. 1; a plurality of balls are rolled and embedded on the inner side of the fixed ring, and the balls are rolled in the ring groove No. 2.

[0013] Preferably, an operating slot is provided in the pressure head; the fixing mechanism comprises:

[0014] Slide rails, there are two of them, and they are fixed on the left and right inner walls of the operating slot respectively;

[0015] Sliders, there are two of them, and each of them is slidably clamped in the slide rail;

[0016] There are two screws, which are fixed to the left and right sliders respectively. The two screws are fixed in the middle, and the threads of the two screws are arranged in opposite directions. The left screw is screwed to the left slider through a bearing.

[0017] There are two regulating motors, each of which is fixed to the right slider. The output shaft of the regulating motor is connected to the screw on the right, and the regulating motor is connected to an external power supply.

[0018] There are two fixing rods, each of which is screwed onto the screw rod through a threaded connection.

[0019] Limit rods, there are two limit rods, and each of them is movably inserted on the fixed rod, and the upper end of the limit rod is fixed in the operating slot;

[0020] The pressure pipe is sleeved on the bottom of the operating groove through a threaded connection.

[0021] Preferably, the upper portion of the operating groove is a square groove, and the lower portion is a round groove.

[0022] Preferably, a spring is fixed between the bottoms of the two fixing rods.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. Equipped with a rotating mechanism, the forging can be rotated out, making it easy to remove the forging and preventing the forging from being stuck in the die;

[0025] 2. The accuracy of the teeth of the left die is lower than that of the teeth of the right die. The double stamping makes the forging more accurate and the gear transmission of the final forging smoother.

[0026] 3. It is equipped with a fixing mechanism to facilitate the movement of gears with different apertures, which has a wider range of uses and improves practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a structural diagram of the present utility model.

[0028] Figure 2 It is a cross-sectional view of the mold in the present utility model.

[0029] Figure 3 It is a schematic diagram of the internal structure of the medium pressure head of the utility model.

[0030] Figure 4 yes Figure 3 Enlarged view of part A in .

[0031] Description of reference numerals:

[0032] Forging body 1, operating table 2, movable frame 3, hydraulic press 4, pressing head 5, operating groove 5-1, rotating mechanism 6, rotating motor 6-1, gear 6-2, gear ring 6-3, die 6-4, No. 1 ring groove 6-5, No. 2 ring groove 6-6, fixing ring 6-7, ball 6-8, fixing mechanism 7, slide rail 7-1, slider 7-2, screw 7-3, adjusting motor 7-4, fixing rod 7-5, spring 7-6, limit rod 7-7, pressing tube 7-8. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. The preferred embodiments in the description are only used as examples. All other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

[0034] This specific implementation adopts the following technical solutions:

[0035] See also Figure 1-4 This embodiment includes a forging body 1, an operating table 2, a movable frame 3, a hydraulic press 4, and a pressing head 5; the left and right forging bodies 1 are arranged on the operating table 2; the movable frame 3 is fixed on the operating table 2, and the movable frame 3 has a built-in moving mechanism (not shown in the figure), the hydraulic press 4 is connected to the bottom of the moving mechanism, and the movable end of the hydraulic press 4 is connected to the pressing head 5;

[0036] It also contains:

[0037] The rotating mechanism 6 is provided on the operating table 2 and includes:

[0038] Rotating motor 6-1, the number of the rotating motor 6-1 is two, and each is fixed to the left and right ends of the upper end of the operating table 2 by a bracket;

[0039] Gear 6-2, there are two gears 6-2, and each of them is connected to the output shaft of the rotating motor 6-1;

[0040] Gear ring 6-3, there are two gear rings 6-3, and each of them is meshed with the gear 6-2; the gear ring 6-3 is screwed to the operating table 2 through a bearing;

[0041] The mold 6-4 is two in number and is respectively fixed in the gear ring 6-3; a first ring groove 6-5 is formed downward at the bottom of the mold 6-4, and a second ring groove 6-6 is formed inside the first ring groove 6-5; the precision of the teeth of the left mold 6-4 is lower than that of the teeth of the right mold 6-4;

[0042] The fixing ring 6-7 is embedded in the first ring groove 6-5, and a plurality of balls 6-8 are embedded in the inner side of the fixing ring 6-7, and the balls 6-8 are rolled in the second ring groove 6-6;

[0043] The fixing mechanism 7 is provided in the pressure head 5. The pressure head 5 has an operating groove 5-1. The upper portion of the operating groove 5-1 is a square groove and the lower portion is a round groove. The fixing mechanism 7 includes:

[0044] Slide rails 7-1, there are two slide rails 7-1, and they are fixed to the left and right inner walls of the operating slot 5-1 by bolts respectively;

[0045] Sliders 7-2, there are two slides 7-2, and each slide is slidably mounted in the slide rail 7-1;

[0046] Screw 7-3, the number of the screw 7-3 is two, and they are fixed on the left and right sliders 7-2 respectively. The two screws 7-3 are welded and fixed in the middle, and the threads of the two screws 7-3 are set oppositely; the left screw 7-3 is screwed to the left slider 7-2 through a bearing;

[0047] Adjusting motor 7-4, the number of the adjusting motor 7-4 is two, and each is fixed to the right slider 7-2 by a bolt, the output shaft of the adjusting motor 7-4 is connected to the right screw 7-3, and the adjusting motor 7-4 is connected to an external power supply. The specific model of the adjusting motor 7-4 is purchased and installed directly from the market according to actual use requirements;

[0048] There are two fixing rods 7-5, each of which is threadedly connected to the screw rod 7-3. A spring 7-6 is fixed between the bottoms of the two fixing rods 7-5.

[0049] Limiting rods 7-7, there are two limiting rods 7-7, which are movably inserted into the fixed rod 7-5, and the upper ends of the limiting rods 7-7 are fixed in the operating slot 5-1;

[0050] The pressure tube 7-8 is sleeved on the bottom of the operating groove 5-1 through a threaded connection.

[0051] When using the present invention, according to the size of the hole in the middle of the gear 6-2, a pressure tube 7-8 with a suitable inner diameter is selected and screwed into the operating slot 5-1; the adjusting motor 7-4 is started to rotate the second screw 7-3, which drives the fixing rod 7-5 to move under the action of the limiting rod 7-7, so that the fixing rod 7-5 can support the hole in the middle of the gear 6-2;

[0052] Put the material tube on the fixed rod 7-5, move the hydraulic press 4, and drive the material tube to the top of the left mold 6-4. Start the hydraulic press 4 to make the material tube drop into the mold 6-4. The pressure head 5 and the pressure tube 7-8 drop down and press the material tube into the mold 6-4 so that the gear 6-2 is initially formed into the forging body 1. Start the rotating motor 6-1 on the left to rotate the gear 6-2 and drive the gear ring 6-3 to rotate. Start the hydraulic press 4 to drive the forging body 1 to rise. The hydraulic press 4 moves and drives the forging body 1 to move to the right mold 6-4 for pressing again, so that the accuracy of the forging body 1 is improved.

[0053] Compared with the prior art, the beneficial effects of the present invention are:

[0054] 1. A rotating mechanism 6 is provided to rotate and remove the forging body 1, making it easy to remove the forging body 1 and preventing the forging body 1 from being stuck in the die 6-4;

[0055] 2. The accuracy of the teeth of the left die 6-4 is lower than that of the teeth of the right die 6-4. The double stamping makes the accuracy of the forging body 1 higher, making the gear transmission of the forging body 1 smoother;

[0056] 3. A fixing mechanism 7 is provided to facilitate the movement of gears with different apertures, thereby expanding the scope of use and improving practicality.

[0057] For those skilled in the art, they can modify the technical solutions described in the aforementioned embodiments and make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A gear precision forging with smooth transmission, comprising a forging body (1), an operating table (2), a movable frame (3), a hydraulic press (4) and a pressing head (5); the left and right forging bodies (1) are arranged on the operating table (2); a movable frame (3) is fixed on the operating table (2), the movable frame (3) has a built-in movable mechanism, a hydraulic press (4) is connected below the movable mechanism, and a pressing head (5) is connected to the movable end of the hydraulic press (4); It is characterized in that It also contains: A rotating mechanism (6), wherein the rotating mechanism (6) is arranged on the operating table (2), and the rotating mechanism (6) comprises: Rotating motors (6-1), the number of the rotating motors (6-1) is two, and they are fixed to the left and right upper ends of the operating table (2) via brackets respectively; Gears (6-2), there are two gears (6-2), and each of the gears (6-2) is connected to the output shaft of the rotating motor (6-1); Gear rings (6-3), the number of the gear rings (6-3) is two, and each is meshed with the gear (6-2); the gear rings (6-3) are screwed onto the operating table (2) via bearings; Molds (6-4), the number of the molds (6-4) is two, and the molds (6-4) are respectively set and fixed in the gear ring (6-3); the precision of the teeth of the left mold (6-4) is lower than the precision of the teeth of the right mold (6-4); A fixing mechanism (7), wherein the fixing mechanism (7) is arranged in the pressure head (5).

2. The gear precision forging with smooth transmission according to claim 1, characterized in that: A downwardly directed No. 1 ring groove (6-5) is provided at the bottom of the mold (6-4), and a No. 2 ring groove (6-6) is provided on the inner side of the No. 1 ring groove (6-5); a fixed ring (6-7) is embedded in the No. 1 ring groove (6-5); and a plurality of balls (6-8) are rotatably embedded on the inner side of the fixed ring (6-7), and the balls (6-8) are rotatably arranged in the No. 2 ring groove (6-6).

3. The gear precision forging with smooth transmission according to claim 1, characterized in that: An operating slot (5-1) is provided in the pressure head (5); the fixing mechanism (7) comprises: Slide rails (7-1), there are two slide rails (7-1), and they are respectively fixed on the left and right inner walls of the operating slot (5-1); Slide blocks (7-2), there are two slide blocks (7-2), and each of the slide blocks (7-2) is slidably mounted in the slide rail (7-1); Screw rods (7-3), the number of the screw rods (7-3) is two, and they are fixed on the left and right sliders (7-2) respectively, the two screw rods (7-3) are fixed in the middle, and the threads of the two screw rods (7-3) are arranged in opposite directions; the left screw rod (7-3) is screwed to the left slider (7-2) through a bearing; Adjusting motors (7-4), the number of the adjusting motors (7-4) is two, and they are respectively fixed on the right slider (7-2), the output shaft of the adjusting motor (7-4) is connected to the right screw (7-3), and the adjusting motor (7-4) is connected to an external power supply; Fixed rods (7-5), the number of the fixed rods (7-5) is two, and each of the fixed rods (7-5) is respectively sleeved on the screw rod (7-3) through a threaded connection; Limiting rods (7-7), the number of the limiting rods (7-7) is two, and each is movably inserted on the fixing rod (7-5), and the upper end of the limiting rod (7-7) is fixed in the operating groove (5-1); A pressure pipe (7-8) is provided on the bottom of the operating groove (5-1) through a threaded connection.

4. The gear precision forging with smooth transmission according to claim 3, characterized in that: The upper portion of the operation slot (5-1) is a square slot, and the lower portion is a round slot.

5. The gear precision forging with smooth transmission according to claim 3, characterized in that: A spring (7-6) is fixed between the bottoms of the two fixing rods (7-5).

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