Planetary gear shaft notching die

Abstract

The utility model relates to the technical field of gear shaft machining, in particular to a planetary gear shaft notching die which comprises a bottom plate, a controller, a lower die, a punching mechanism and a fixing mechanism, a vertical plate is fixedly arranged at the top of the bottom plate, and the fixing mechanism comprises a first clamping plate, a second clamping plate, a first air cylinder, an adjusting assembly and three material tables. The punching mechanism is arranged on the outer wall of the vertical plate and comprises an upper die, a second air cylinder and three cutting assemblies, the upper die is slidably arranged on the outer wall of the vertical plate through two sliding plates, the second air cylinder is fixedly arranged at the top of the vertical plate, the output end of the second air cylinder is fixedly connected with the upper die through a pushing block, and the three cutting assemblies are arranged at the bottom of the upper die at equal intervals; the first air cylinder and the second air cylinder are both electrically connected with the controller, the planetary gear shaft notching die can machine gear shafts of different sizes, machining of the gear shafts of different sizes and specifications is met, and practicability and flexibility of the die are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear shaft processing, in particular to a planetary gear shaft punching die. Background Art

[0002] The function of the differential is to transmit power to the half-axles on both sides while allowing them to rotate at different speeds, so that the wheels on both sides move at different speeds and reduce the friction between the tires and the ground. When the car turns, such as turning left, the center of the curve is on the left. In the same amount of time, the trajectory of the right wheel is longer than that of the left wheel, so the right wheel turns faster. To achieve this effect, it is necessary to adjust it through the differential. The differential is composed of mechanical parts such as differential case, planetary gears, planetary gear shafts and half-axle gears. The planetary gears rotate around the planetary gear shafts, and their manufacturing precision directly affects the performance of the differential.

[0003] The planetary gear shaft is a steel part, and the main processing techniques are: cutting, rough turning of the outer circle and end face chamfering, rough grinding, milling of oil grooves, drilling, heat treatment, fine grinding and other processes. During the processing of the planetary gear shaft, the oil groove is usually milled by a milling machine.

[0004] The existing oil tank processing technology has the following shortcomings:

[0005] Only one gear shaft can be processed at a time, and the four oil grooves need to be processed four times, which is time-consuming, labor-intensive and inefficient.

[0006] Gear shafts of different sizes need to be clamped by different clamps, and the clamping stroke is not adjusted according to the size of the gear shaft by a valve, which is very troublesome. Summary of the invention

[0007] The utility model aims to provide a planetary gear shaft punching die.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] A planetary gear shaft punching die is provided, comprising a bottom plate, a vertical plate is fixed on the top of the bottom plate,

[0010] It also includes a controller, a lower die, a punching mechanism and a fixing mechanism.

[0011] The lower die is fixed on the top of the base plate.

[0012] The fixing mechanism is arranged on the top of the lower mold, and the fixing mechanism includes a first clamping plate, a second clamping plate, a first cylinder, an adjustment component and three material tables. The first cylinder is inserted on the outer wall of the lower mold, and the first clamping plate and the second clamping plate are both slidably arranged on the top of the lower mold through two sliders. The output end of the first cylinder is fixedly connected to the first clamping plate, and the adjustment component is arranged on the outer wall of one end of the lower mold away from the first cylinder. The three material tables are arranged at equal intervals on the top of the lower mold.

[0013] The punching mechanism is arranged on the outer wall of the vertical plate, and the punching mechanism includes an upper mold, a second cylinder and three cutting components. The upper mold is slidably arranged on the outer wall of the vertical plate through two slides, and the second cylinder is fixedly arranged on the top of the vertical plate, and its output end is fixedly connected to the upper mold through a push block. The three cutting components are arranged at equal intervals at the bottom of the upper mold, and the first cylinder and the second cylinder are electrically connected to the controller.

[0014] Preferably, each cutting assembly comprises a mounting plate and four punching heads, the mounting plate is fixedly arranged at the bottom of the upper die, and the four punching knives are symmetrically arranged at the bottom of the mounting plate.

[0015] Preferably, the adjustment assembly includes a handwheel, a screw rod and a circular flange. The screw rod is threadedly connected to the outer wall of the lower mold. The handwheel and the circular flange are respectively fixed at both ends of the screw rod. A limit sleeve is fixed at one end of the second clamping plate close to the screw rod. The end of the screw rod away from the handwheel passes through the limit sleeve. The circular flange is rotatably connected to the limit sleeve.

[0016] Preferably, a trapezoidal groove is provided on the top of each material table, and three arc-shaped limit blocks are evenly spaced on the outer walls of the first clamping plate and the second clamping plate.

[0017] Preferably, four blanking openings are symmetrically arranged on the sides of each material table, the top of each blanking opening is an angled structure, two feeding slides are symmetrically arranged on the inner wall of the lower mold, and two discharge openings are opened on the side wall at one end of the lower mold, and the two discharge openings, two feeding slides and several blanking openings are connected in sequence.

[0018] Preferably, four guide rods are fixedly provided at the four corners of the bottom of the upper mold, and four plug holes are fixedly provided at the four corners of the top of the lower mold, and each guide rod is plugged into a plug hole.

[0019] Beneficial effects of the utility model:

[0020] The utility model designs a controller, a lower die, a punching mechanism and a fixing mechanism, and through the cooperation of the four, three gear shafts can be synchronously processed at a single time, and when each gear shaft is processed, four oil grooves are punched and cut, and there is no need to process them one by one, which not only greatly shortens the processing time and improves the processing efficiency, but also reduces the consumption of the tool, which is beneficial to extending the service life of the tool, and can realize batch processing, expand production, and increase corporate profits.

[0021] The utility model can automatically adjust the distance between the first clamping plate and the second clamping plate through the design of the first clamping plate, the second clamping plate, the first cylinder and the adjusting component, so as to adjust the clamping stroke. The trapezoidal groove designed on the material table is convenient for processing gear shafts of different sizes, meets the processing requirements of gear shafts of different sizes and improves the practicality and flexibility of the mold.

[0022] The utility model is designed to have two discharge ports, two feeding slides and a plurality of blanking ports that are connected in sequence. After four oil grooves are punched at both ends of the gear shaft, the fallen metal blocks fall into the interior of the feeding slides from the four blanking ports. The bevel structure facilitates the rapid falling of the metal blocks. Since the feeding slide is inclined, a discharge port is designed on the side wall of one end of the lower die. The discharge port, the feeding slide and the four blanking ports are connected in sequence, so that the punched metal materials are discharged from the two discharge ports, thereby realizing the collection of the metal materials and facilitating secondary utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings in the embodiment of the present invention are briefly introduced below.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 It is a cross-sectional view of the upper die of the utility model;

[0026] Figure 3 It is a cross-sectional view of the lower die, the vertical plate, the second clamping plate and the limiting sleeve of the utility model;

[0027] Figure 4 for Figure 3 A magnified image of point A;

[0028] Figure 5 It is a cross-sectional view of the lower die of the utility model;

[0029] In the figure: vertical plate 1, lower die 2, first clamping plate 3, second clamping plate 4, first cylinder 5, adjustment assembly 6, material table 7, upper die 8, second cylinder 9, cutting assembly 10, push block 11, mounting plate 12, punching head 13, hand wheel 14, screw 15, circular flange 16, limit sleeve 17, trapezoidal groove 18, arc limit block 19, blanking port 20, feeding slide 21, discharge port 22, guide rod 23. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0032] Reference Figures 1 to 5 As shown, the planetary gear shaft punching die includes a bottom plate, a vertical plate 1 is fixed on the top of the bottom plate,

[0033] It also includes a controller, a lower die 2, a punching mechanism and a fixing mechanism.

[0034] The lower mold 2 is fixed on the top of the bottom plate.

[0035] The fixing mechanism is arranged on the top of the lower mold 2, and the fixing mechanism includes a first clamping plate 3, a second clamping plate 4, a first cylinder 5, an adjustment component 6 and three material tables 7. The first cylinder 5 is inserted on the outer wall of the lower mold 2, and the first clamping plate 3 and the second clamping plate 4 are both slidably arranged on the top of the lower mold 2 through two sliders. The output end of the first cylinder 5 is fixedly connected to the first clamping plate 3, and the adjustment component 6 is arranged on the outer wall of one end of the lower mold 2 away from the first cylinder 5. The three material tables 7 are arranged at equal intervals on the top of the lower mold 2.

[0036] The punching mechanism is arranged on the outer wall of the vertical plate 1, and the punching mechanism includes an upper mold 8, a second cylinder 9 and three cutting components 10. The upper mold 8 is slidably arranged on the outer wall of the vertical plate 1 through two slides, and the second cylinder 9 is fixedly arranged on the top of the vertical plate 1, and its output end is fixedly connected to the upper mold 8 through a push block 11. The three cutting components 10 are arranged at equal intervals at the bottom of the upper mold 8, and the first cylinder 5 and the second cylinder 9 are electrically connected to the controller.

[0037] Reference Figures 1 to 5 As shown, each cutting assembly 10 includes a mounting plate 12 and four punching heads 13. The mounting plate 12 is fixedly arranged at the bottom of the upper mold 8. Four punching knives are symmetrically arranged at the bottom of the mounting plate 12. When the three gear shafts are fixed, the second cylinder 9 is started by the controller to extend its output end downward. Since its output end is fixedly connected to the upper mold 8 through the push block 11, the push block 11 is slidably connected to the vertical plate 1, and the upper mold 8 is slidably connected to the vertical plate 1 through two slides, the upper mold 8 is fixedly connected to the four punching heads 13 through the mounting plate 12, so that the four punching heads 13 descend vertically to punch out four oil grooves at both ends of the gear shaft.

[0038] Reference Figures 1 to 5 As shown, the adjusting assembly 6 includes a handwheel 14, a screw rod 15 and a circular flange 16. The screw rod 15 is threadedly connected to the outer wall of the lower mold 2. The handwheel 14 and the circular flange 16 are respectively fixedly arranged at the two ends of the screw rod 15. A limiting sleeve 17 is fixedly arranged at one end of the second clamping plate 4 close to the screw rod 15. The end of the screw rod 15 away from the handwheel 14 passes through the limiting sleeve 17, and the circular flange 16 is rotatably connected to the limiting sleeve. When encountering gear shafts of different sizes, the handwheel 14 is manually rotated. Since the handwheel 14 and the circular flange 16 are respectively fixedly connected to the two ends of the screw rod 15, the screw rod 15 is threadedly connected to the lower mold 2, the limiting sleeve 17 is fixedly connected to the end of the second clamping plate 4 close to the screw rod 15, the end of the screw rod 15 away from the handwheel 14 passes through the limiting sleeve 17, and the circular flange 16 is rotatably connected to the limiting sleeve. The second clamping plate 4 is slidably connected to the lower mold 2 through two sliders, thereby driving the second clamping plate 4 to slide horizontally, so as to facilitate the close contact with the end of the gear shaft away from the first clamping plate 3.

[0039] Reference Figures 1 to 5 As shown, a trapezoidal groove 18 is provided on the top of each material table 7, and three arc-shaped limit blocks 19 are evenly spaced on the outer walls of the first clamping plate 3 and the second clamping plate 4. When the oil groove of the planetary gear shaft is punched out, the three gear shafts are first placed horizontally in the trapezoidal grooves 18 on the tops of the three material tables 7 in turn. The six arc-shaped limit blocks 19 are arranged up and down, and cooperate with the trapezoidal grooves 18 to limit the three gear shafts horizontally and vertically, thereby preventing the gear shafts from shaking during the punching work.

[0040] Reference Figures 1 to 5 As shown, four blanking ports 20 are symmetrically arranged on the sides of each material table 7, and the top of each blanking port 20 is an angled structure. Two feeding chutes 21 are symmetrically arranged on the inner wall of the lower mold 2. Two discharge ports 22 are opened on the side wall of one end of the lower mold 2. The two discharge ports 22, the two feeding chutes 21 and the plurality of blanking ports 20 are connected in sequence. After punching four oil grooves at both ends of the gear shaft, the fallen metal blocks fall from the four blanking ports 20 into the inside of the feeding chute 21. The angled structure facilitates the rapid falling of the metal blocks. Since the feeding chute 21 is inclined, a discharge port 22 is designed on the side wall of one end of the lower mold 2. The discharge port 22, the feeding chute 21 and the four blanking ports 20 are connected in sequence, so that the punched metal material is discharged from the two discharge ports 22, thereby realizing the collection of the metal material and facilitating secondary utilization.

[0041] Reference Figures 1 to 5 As shown, four guide rods 23 are fixedly provided at the four corners of the bottom of the upper mold 8, and four sockets are fixedly provided at the four corners of the top of the lower mold 2, and each guide rod 23 is plugged into a socket. When the three gear shafts are placed, the first cylinder 5 is started by the controller to extend its output end toward the end close to the gear shaft. Since the output end of the first cylinder 5 is fixedly connected to the three arc limit blocks 19 through the first clamping plate 3, the first clamping plate 3 is slidably connected to the lower mold 2 through two sliders, so that the first clamping plate 3 drives three of the arc limit blocks 19 to approach the end close to the gear shaft until the other end of the gear shaft is pressed against the outer wall of the second clamping plate 4, and at the same time cooperates with the other three arc limit blocks 19 to realize the support and limitation of the two ends of the gear shaft.

Claims

1. A planetary gear shaft punching die, comprising a bottom plate, a vertical plate (1) fixedly provided on the top of the bottom plate, characterized in that: It also includes a controller, a lower die (2), a punching mechanism and a fixing mechanism. The lower die (2) is fixed on the top of the bottom plate. The fixing mechanism is arranged on the top of the lower mold (2), and comprises a first clamping plate (3), a second clamping plate (4), a first cylinder (5), an adjustment component (6) and three material tables (7). The first cylinder (5) is inserted into the outer wall of the lower mold (2). The first clamping plate (3) and the second clamping plate (4) are both slidably arranged on the top of the lower mold (2) through two slide blocks. The output end of the first cylinder (5) is fixedly connected to the first clamping plate (3). The adjustment component (6) is arranged on the outer wall of the lower mold (2) at one end away from the first cylinder (5). The three material tables (7) are arranged at equal intervals on the top of the lower mold (2). The punching mechanism is arranged on the outer wall of the vertical plate (1), and comprises an upper die (8), a second cylinder (9) and three cutting components (10). The upper die (8) is slidably arranged on the outer wall of the vertical plate (1) via two slide plates. The second cylinder (9) is fixedly arranged on the top of the vertical plate (1), and its output end is fixedly connected to the upper die (8) via a push block (11). The three cutting components (10) are arranged at equal intervals at the bottom of the upper die (8). The first cylinder (5) and the second cylinder (9) are both electrically connected to a controller.

2. The planetary gear shaft punching die according to claim 1, characterized in that: Each cutting assembly (10) comprises a mounting plate (12) and four punching heads (13); the mounting plate (12) is fixedly arranged at the bottom of the upper die (8); and the four punching knives are symmetrically arranged at the bottom of the mounting plate (12).

3. The planetary gear shaft punching die according to claim 2, characterized in that: The adjustment assembly (6) comprises a hand wheel (14), a screw rod (15) and a circular flange (16); the screw rod (15) is threadedly connected to the outer wall of the lower mold (2); the hand wheel (14) and the circular flange (16) are respectively fixedly arranged at two ends of the screw rod (15); a limiting sleeve (17) is fixedly arranged at one end of the second clamping plate (4) close to the screw rod (15); an end of the screw rod (15) away from the hand wheel (14) passes through the limiting sleeve (17); and the circular flange (16) is rotatably connected to the limiting sleeve.

4. The planetary gear shaft punching die according to claim 3, characterized in that: A trapezoidal groove (18) is provided on the top of each material table (7), and three arc-shaped limit blocks (19) are evenly spaced on the outer walls of the first clamping plate (3) and the second clamping plate (4).

5. The planetary gear shaft punching die according to claim 4, characterized in that: Four blanking openings (20) are symmetrically arranged on the side of each material table (7), and the top of each blanking opening (20) is an angled structure. Two feeding slideways (21) are symmetrically arranged on the inner wall of the lower mold (2), and two discharge openings (22) are opened on the side wall of one end of the lower mold (2). The two discharge openings (22), the two feeding slideways (21) and the plurality of blanking openings (20) are connected in sequence.

6. The planetary gear shaft punching die according to claim 5, characterized in that: Four guide rods (23) are fixedly provided at the four corners of the bottom of the upper mold (8), and four insertion holes are fixedly provided at the four corners of the top of the lower mold (2), and each guide rod (23) is plugged into a insertion hole.

Images