Positioning and arranging device for cold-extruded splines

Abstract

The present application belongs to the technical field of feeding equipment, and particularly relates to a positioning and arranging device for cold-extruded splines. The device comprises a feeding device and a positioning and arranging device, wherein the feeding device is installed at the front end of the positioning and arranging device; the positioning and arranging device comprises a mounting frame, a positioning channel, a feeding channel, a positioning detection mechanism, a lifting mechanism, a horizontal conveying mechanism, a steering mechanism and a jacking tool, the positioning channel and the feeding channel are both arranged through the upper surface of the mounting frame, the positioning channel is close to the feeding channel, the front end of the positioning channel is connected with the feeding device, and the first support frame, the second support frame and the jacking tool are arranged in the positioning channel from front to back in intervals. The present application detects the direction of the cold-extruded spline through the positioning detection mechanism, and when the cold-extruded spline is reversed, the lifting mechanism and the steering mechanism are used for steering, so that the cold-extruded spline at the end of the device is in the same direction. The present application has the advantages of simple, compact and reasonable structure, easy operation and improved production efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of feeding equipment, and particularly relates to a positioning and arranging device for a spline to be cold-extruded. BACKGROUND

[0002] The one-way clutch for an automobile starter is an important part of an automobile, and a spline pipe in the one-way clutch is a key component. The internal helical spline of the spline pipe is cold-extruded on a press. With the development of the automobile industry, many transmission components on the automobile also mostly adopt the helical spline at present, and the demand for the spline pipe is increasing. However, with the increasing requirements for such processing, not only the precision of the equipment itself needs to be improved, but also automatic equipment begins to be popular. Among them, a servo quick press replaces an ordinary press, a mechanical hand replaces manual work, and feeding relies on an automatic feeding machine. However, the hole diameters of the two ends of the spline pipe before the spline pipe is extruded are different, that is, the hole diameter of one end of the spline pipe is small, and the hole diameter of the other end of the spline pipe is large. When the material is manually placed, the operator needs to observe the direction and then place it into the mold cavity. After the automatic mechanical hand replaces manual work, it cannot be identified. If the spline pipe is placed in the wrong direction, the mold will be damaged, causing economic losses. Since it is cold-extruded, the surface of the material needs to be phosphatized and saponified to achieve the purpose of lubricating extrusion molding. Therefore, after the surface treatment, the visual camera cannot identify the phenomenon. SUMMARY

[0003] The application provides a positioning and arranging device for a spline to be cold-extruded, and solves the problem that the direction of the spline pipe cannot be identified when the spline pipe is placed into the mold by the mechanical hand.

[0004] Therefore, the application adopts the following technical scheme: a positioning and arranging device for a spline to be cold-extruded, comprising a feeding device and a positioning and arranging device, the feeding device is installed at the front end of the positioning and arranging device;

[0005] The positioning and arranging device comprises a mounting frame, a positioning channel, a feeding channel, a positioning detection mechanism, a lifting mechanism, a horizontal conveying mechanism, a turning mechanism and a jacking tool. The positioning channel and the feeding channel are both arranged through the upper surface of the mounting frame. The positioning channel is close to the feeding channel. The front end of the positioning channel is connected with the feeding device. The first support frame, the second support frame and the jacking tool are arranged in the positioning channel from front to back. The positioning detection mechanism is arranged on the upper surface of the mounting frame and faces the second support frame. The bottom of the second support frame is connected with the turning mechanism. The first support frame, the turning mechanism and the jacking tool are all installed on the lifting mechanism. The lifting mechanism is installed on the horizontal conveying mechanism. The two sides of the positioning channel and the feeding channel are provided with shielding plates. The shielding plates are provided with positioning grooves for the spline to be cold-extruded. The positioning grooves are located on the two sides of the second support frame and the jacking tool.

[0006] Further, the feeding device comprises a feeding machine and a feeding conveying belt, the feeding conveying belt is installed at the upper end of the feeding machine, the feeding machine comprises a machine body frame, a hopper is arranged in the machine body frame, a plurality of feeding steps are arranged above the hopper, and each feeding step is provided with a reciprocating feeding plate at the outer side.

[0007] Further, the end of the feeding conveying belt is provided with a feeding limiting block, the machine body frame is provided with a backflow slide at the feeding limiting block, and the end of the backflow slide is communicated with the hopper.

[0008] Further, the feeding steps are inclined inward, and the plurality of reciprocating feeding plates are synchronously lifted.

[0009] Further, the positioning detection mechanism comprises a positioning cylinder and a detection sensor, the positioning cylinder is located at one side of the positioning channel, the detection sensor is located at the other side of the detection cylinder, and the detection sensor is used for detecting the inner wall of the to-be-cold-extruded spline.

[0010] Further, the lifting mechanism comprises a mounting bracket, a mounting plate and a lifting cylinder, the lifting cylinder is vertically installed on the mounting bracket, the piston rod of the lifting cylinder is connected with the mounting plate, and the first supporting frame, the steering mechanism and the jacking tool are all installed on the mounting plate.

[0011] Further, the horizontal conveying mechanism comprises a horizontal conveying cylinder and a slide rail, the slide rail is horizontally installed on the mounting frame, the mounting bracket is slidably connected with the slide rail, and the piston rod of the horizontal conveying cylinder is connected with the mounting bracket.

[0012] Further, the jacking tool comprises a connecting rod, an inclined top plate and a conveying bracket, the bottom of the connecting rod is installed on the lifting mechanism, the inclined top plate is installed at the top end of the connecting rod, the inclined top plate is inclined towards the feeding channel, the conveying bracket is connected with the connecting rod, and the conveying bracket is located in the feeding channel.

[0013] Further, a guide groove inclined towards the feeding channel is arranged on the positioning groove between the jacking tool and the feeding channel.

[0014] Further, a controller is further arranged, the controller is connected with the positioning detection mechanism, the lifting mechanism, the horizontal conveying mechanism and the steering mechanism respectively, the positioning detection mechanism is used for detecting the pipe wall of the to-be-cold-extruded spline, when the positioning detection mechanism detects the pipe wall of the to-be-cold-extruded spline, the detection signal is generated.

[0015] The controller can control the horizontal conveying mechanism and the lifting mechanism to operate, and can control the steering mechanism to steer when the lifting mechanism is lifted according to the detection signal.

[0016] The present application has the advantages that the present application detects the direction of the cold-extruded spline through the positioning detection mechanism, and the cold-extruded spline is steered through the lifting mechanism and the steering mechanism when the cold-extruded spline is reversed, so that the cold-extruded spline at the end of the device is in the same direction, the mechanical hand does not need additional operation, and the cold-extruded spline can be directly placed into the mold, the present application has simple, compact and reasonable structure, and is convenient to operate, and the production efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present application.

[0018] Figure 2 is a structural schematic diagram of the present application.

[0019] Figure 3 is a structural schematic diagram of the present application.

[0020] Figure 4 is a structural schematic diagram of the present application.

[0021] Figure 5 is an enlarged view of the upper surface of the mounting frame.

[0022] Figure 6 is a structural schematic diagram of the present application.

[0023] Figure 7 is a structural schematic diagram of the present application.

[0024] Figure 8 is a system structure block diagram of the present application.

[0025] Fig. 1 is a structural schematic diagram of the present application. EMBODIMENT

[0026] In order to make the technical personnel better understand the scheme of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. The described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the scope of protection of the present application.

[0027] In the embodiments of the present application, Figure 1 is a structural schematic diagram provided according to the specific structure of the positioning and arranging device of the cold-extruded spline. As Figure 1 shown, the present application specifically includes a feeding device 1 and a positioning and arranging device 2. The feeding device 1 is installed at the front end of the positioning and arranging device 2. The feeding device 1 horizontally places the cold-extruded spline into the positioning and arranging device 2. The positioning and arranging device 2 identifies the direction of the cold-extruded spline. When the direction of the cold-extruded spline is reversed, it is turned, and the cold-extruded spline with correct direction is transported to the predetermined position, and the mechanical hand is grabbed.

[0028] The specific structure of the positioning and arranging device 2 includes a mounting frame 21, a positioning channel 22, a feeding channel 23, a positioning detection mechanism 24, a lifting mechanism 25, a horizontal conveying mechanism 26, a turning mechanism 27 and a jacking tool 28. The positioning channel 22 and the feeding channel 23 are both arranged through the upper surface of the mounting frame 21. The positioning channel 22 and the feeding channel 23 are both grooves through the upper surface of the mounting frame 21. The positioning channel 22 is close to the feeding channel 23. The front end of the positioning channel 22 is connected with the feeding device 1. The first support frame 29, the second support frame 210 and the jacking tool 28 are arranged in the positioning channel 22 from front to back. The first support frame 29 and the second support frame 210 are both used to support the cold-extruded spline. The jacking tool 28 is used to jack the horizontal cold-extruded spline into the feeding channel 23, and change the placing direction of the cold-extruded spline to vertical placing.

[0029] The positioning detection mechanism 24 is arranged on the upper surface of the mounting frame 21 and faces the second support frame 210, and is used for detecting the pipe wall of the cold extrusion spline to be positioned. The bottom of the second support frame 210 is connected with the turning mechanism 27, the first support frame 29, the turning mechanism 27 and the jacking tool 28 are all mounted on the lifting mechanism 25, the lifting mechanism 25 is mounted on the horizontal conveying mechanism 26, the two sides of the positioning channel 22 and the feeding channel 23 are provided with shielding plates 212, the shielding plates 212 are provided with positioning grooves 211 for positioning the cold extrusion spline, and the positioning grooves 211 are located on the two sides of the second support frame 210 and the jacking tool 28. The turning mechanism 27 can adopt a rotary air cylinder, specifically a 180-degree rotary air cylinder.

[0030] The cold extrusion spline to be positioned is horizontally fed from the feeding device 1 to the first support frame 29, the first mounting bracket 251 is lifted by the lifting mechanism 25 and is moved backward by the horizontal conveying mechanism 26 to above the positioning grooves 211 on the two sides of the initial position of the first support frame 29, because the first support frame 29, the second support frame 210 and the jacking tool 28 are all mounted on the lifting mechanism 25, so the operation modes of the three are same. Then the first mounting bracket 251 is lowered to feed the cold extrusion spline into the positioning groove 211, the horizontal conveying mechanism 26 returns, and the first support frame 29, the second support frame 210 and the jacking tool 28 return to the initial position. The positioning detection mechanism 24 starts to work, when the pipe wall of the cold extrusion spline to be positioned is detected by the positioning detection mechanism 24, that is, the small hole diameter end of the cold extrusion spline to be positioned faces the positioning detection mechanism 24, which indicates that the cold extrusion spline to be positioned is reversed, and it needs to be noted that the reverse and forward directions can be calibrated according to actual conditions, or the pipe wall cannot be detected by the positioning detection mechanism 24 to be determined as reversed. When the cold extrusion spline to be positioned is reversed, the second support frame 210 is lifted to support the cold extrusion spline to be positioned, then the turning mechanism 27 rotates the second support frame 210 to turn the cold extrusion spline to be positioned, then the horizontal conveying mechanism 26 moves backward to above the positioning grooves 211 on the two sides of the initial position of the jacking tool 28, the lifting mechanism 25 is lowered, the cold extrusion spline to be positioned is fed into the positioning groove 211, the horizontal conveying mechanism 26 returns to the initial position, and then the lifting mechanism 25 is lifted again, at this time, the jacking tool 28 puts the cold extrusion spline to be positioned with the adjusted direction into the feeding channel 23, and changes the horizontal placement of the cold extrusion spline to be positioned into vertical placement, and the horizontal conveying mechanism 26 works again to move the cold extrusion spline to be positioned with the vertical placement to a feeding position, and the mechanical hand puts the cold extrusion spline to be positioned into a mold.

[0031] In an embodiment of the present application, as shown in Figure 2As shown, the feeding device 1 comprises a feeding machine 11 and a feeding conveying belt 12, the feeding conveying belt 12 is installed at the upper end of the feeding machine 11, the feeding machine 11 comprises a machine body frame 111, a hopper 112 is arranged in the machine body frame 111, the hopper 112 is welded by 5mm plate and is in the shape of an inverted tower funnel, which is convenient for feeding and concentrating materials at the bottom.

[0032] A plurality of feeding steps 113 are arranged above the hopper 112, the feeding steps 113 are inclined at an angle of 30 degrees with the bottom plate. A reciprocating feeding plate 114 is arranged at the outer side of each feeding step 113, the reciprocating feeding plate 114 is slidingly connected with the two side walls of the machine body frame 111, and a plurality of reciprocating feeding plates 114 are driven to reciprocate and lift by a driving device. The driving device can be an oil cylinder, the piston end of the oil cylinder is connected with the reciprocating feeding plate 114 to drive the reciprocating feeding plate 114 to reciprocate and lift. The reciprocating lifting plate of the first stage moves the cold-extrusion spline in the hopper 112 upward to the first-stage feeding step 113, and the cold-extrusion spline is moved to the next-stage feeding step 113 by the reciprocating lifting plate of the next-stage feeding step 113, and so on until the cold-extrusion spline is moved to the feeding conveying belt 12. The width of the reciprocating lifting plate is smaller than the length of the cold-extrusion spline, the feeding steps 113 are inclined inward, and the plurality of reciprocating feeding plates 114 are synchronously lifted. Generally, the cold-extrusion spline is horizontally moved to the feeding conveying belt 12 by multi-stage lifting, and the vertical center of gravity is offset outward to fall back into the hopper 112, so as to ensure that the cold-extrusion splines are in the same direction. The above-mentioned horizontal direction refers to the direction of the cold-extrusion spline being the same as the conveying direction of the conveying belt. In order to prevent individual cold-extrusion splines with incorrect direction from entering the feeding conveying belt 12 and being conveyed to the positioning and arranging device 2, a feeding limiting block 121 is arranged at the end of the feeding conveying belt 12, a backflow chute 115 is arranged at the feeding limiting block 121 of the machine body frame 111, the end of the backflow chute 115 is communicated with the hopper 112, and the cold-extrusion spline with incorrect direction is blocked by the feeding limiting block 121 to return to the hopper 112 from the backflow chute 115.

[0033] A feeding detection switch 124 is further arranged on the feeding conveying belt 12, the feeding detection switch 124 is located at the rear end of the feeding limiting block 121, the feeding detection is that a pair of photoelectric sensors are installed in a gap of the two side plates of the feeding conveying belt 12, so as to ensure the stability and timeliness of the cold-extrusion spline passing, to feedback information when the supply is not timely and to alarm for lack of materials. The feeding conveying belt 12 described above can be a conventional conveying belt composed of a driving motor 122 and a conveying belt 123, and the specific structure is as follows Figure 3As shown. Among them, considering that the cold extrusion spline is subjected to surface treatment, and there is lubricant on the surface, and some cold extrusion splines also have high polymer coating, which has an impact on the corrosion and slipping of the conveying belt, therefore, the conveying belt 123 can use a silent chain to transport the product.

[0034] The reasons for using the present feeding device 1 are as follows: it can ensure that all the cold extrusion splines are transverse, which is convenient for subsequent detection; the cold extrusion spline has a protective film after phosphatization, and the vibration disc or general feeding machine 11 will damage the protective film; it has good versatility and can adjust the limiting block according to the specific size of the cold extrusion spline, and is suitable for different models of cold extrusion splines.

[0035] In an embodiment of the present application, as shown in Figure 4 and Figure 5 The positioning detection mechanism 24 includes a positioning cylinder 241 and a detection sensor 242, the positioning cylinder 241 is located on one side of the positioning channel 22, and the detection sensor 242 is located on the other side of the detection cylinder, and the detection sensor 242 is used to detect the inner wall of the cold extrusion spline. Among them, the detection sensor 242 can adopt a proximity switch, when the cold extrusion spline is placed in the positioning groove 211, the positioning cylinder 241 pushes it to the side of the detection sensor 242, so that the cold extrusion spline abuts against the detection sensor 242, and the testing accuracy is guaranteed. Before detection, the position of the detection sensor 242 needs to be adjusted, so that it can detect the pipe wall of the small end of the hole diameter of the cold extrusion spline, and cannot detect the pipe wall of the large end of the hole diameter of the cold extrusion spline, when the pipe wall is detected, it means that the cold extrusion spline is reversed.

[0036] In an embodiment of the present application, as shown in Figure 4 and Figure 6 The lifting mechanism 25 includes a mounting bracket 251, a mounting plate 252 and a lifting cylinder 253, the lifting cylinder 253 is vertically installed on the mounting bracket 251, the piston rod of the lifting cylinder 253 is connected with the mounting plate 252, and the first support frame 29, the steering mechanism 27 and the jacking tool 28 are all installed on the mounting plate 252. The lifting cylinder 253 lifts the mounting plate 252 through the piston rod, so that the first support frame 29, the steering mechanism 27 and the jacking tool 28 on the mounting plate 252 are lifted, and the two sides of the lifting cylinder 253 are provided with guide rods, the top ends of the guide rods are connected with the mounting plate and are in sliding connection with the mounting bracket.

[0037] The horizontal conveying mechanism 26 comprises a horizontal conveying cylinder 261 and a slide rail 262 horizontally mounted on the mounting frame 21, the mounting bracket 251 is in sliding connection with the slide rail 262, and the piston rod of the horizontal conveying cylinder 261 is connected with the mounting bracket 251. The mounting bracket 251 is moved back and forth as a whole by the horizontal conveying cylinder 261, so that the positioning and movement of the to-be-cold-extruded spline are realized.

[0038] In one embodiment of the present application, as shown in Figure 7 The jacking tool 28 comprises a connecting rod 281, an inclined top plate 282 and a conveying bracket 283, the bottom of the connecting rod 281 is mounted on the lifting mechanism 25, the inclined top plate 282 is mounted at the top end of the connecting rod 281, the inclined top plate 282 is inclined towards the feeding channel 23, the conveying bracket 283 is connected to the connecting rod 281, and the conveying bracket 283 is located in the feeding channel 23. The function is to send the vertical to-be-cold-extruded spline from the feeding channel 23 to the feeding arrival position. The positioning groove 211 between the jacking tool 28 and the feeding channel 23 is provided with a guide groove 213 inclined towards the feeding channel 23. The guide groove 213 is inclined according to the position of the inclined top plate 282 in the jacking cylinder to position.

[0039] In one embodiment of the present application, as shown in Figure 8 The present application further comprises a controller, which is connected with the positioning detection mechanism 24, the lifting mechanism 25, the horizontal conveying mechanism 26 and the steering mechanism 27 respectively. The controller can be a PLC. The controller realizes the operation process in the above through a preset program.

[0040] The positioning detection mechanism 24 is used for detecting the pipe wall of the to-be-cold-extruded spline, and the detection signal is generated when the positioning detection mechanism 24 detects the pipe wall of the to-be-cold-extruded spline. The controller can control the horizontal conveying mechanism 26 and the lifting mechanism 25 to operate according to a preset program, and can control the steering mechanism 27 to steer when the lifting mechanism 25 is lifted according to the detection signal.

[0041] The controller is also connected with the feeding machine 11 and the feeding conveying belt 12 in the feeding device 1, controls the operation of the oil cylinder in the feeding machine 11, and controls the start-stop and rotating speed of the motor of the feeding conveying belt 12. The controller is connected with the feeding detection switch 124, and after receiving the signal of the feeding detection switch 124, the system prompts a lack-of-material alarm and emits a beeping sound to remind the operator to replenish materials or solve the problem of mixed materials.

[0042] In one embodiment of the present application, the present application further comprises an electrical cabinet, the electrical cabinet is provided with power-on indicator light and emergency stop button, and the operation button of each action, and the front is provided with touch screen and operation mode selection and start-stop knob of the feeding machine 11; the electrical cabinet is provided with PLC and intermediate relay, switching power supply and contactor of Schneider and the like for controlling all actions. All actions are controlled by PLC, and the touch screen can also be used as an operation button in addition to displaying I / O actions.

[0043] The overall use process of the present application is as follows:

[0044] Using the device, first, according to the model of the cold extrusion spline, the process card is obtained, the corresponding material and the cold extrusion spline are obtained according to the process card, the outer diameter and the length of the cold extrusion spline are determined; then the cold extrusion spline baffle is adjusted according to the outer diameter of the cold extrusion spline. Then the press and the manipulator are adjusted, and the machine is started for debugging.

[0045] Next, after the size of the cold extrusion spline is checked, the push plate type feeding machine 11 is poured; the power supply of the device is turned on, the emergency stop button is unscrewed, the power supply of the device is connected, each electrical element is powered on, and the preparation before debugging the device is made.

[0046] Next, the action mode selection knob is selected as manual, and the manual mode is entered; the feeding machine 11 selection knob is selected as the feeding machine 11 start, and the feeding machine 11 starts to act, and the conveying start button is pressed, and the feeding conveyor belt 12 starts to act.

[0047] Next, the feeding machine 11 sends the cold extrusion spline into the feeding conveyor belt 12, the speed is adjusted according to the speed regulator, the feeding limiting plate is adjusted, all the cold extrusion splines higher than the outer diameter of the cold extrusion spline are blocked and fall back to the stock bin 112, and the feeding state is ensured.

[0048] Next, the lifting cylinder 253 top-up button is pressed, the lifting mechanism 25 is lifted, the rotation cylinder rotation button and the rotation cylinder return button are pressed, the rotation action is checked, then the lifting cylinder 253 return button is pressed, the cold extrusion spline is placed at the detection position, the positioning cylinder 241 is pressed to extend, the detection sensor 242 is adjusted, the cold extrusion spline has signal when the inner hole is small, and has no signal when the inner hole is large;

[0049] Next, the cold extrusion spline is placed at the position of the positioning groove 211 on both sides of the lifting tool 28, the lifting cylinder 253 top-up button is pressed, the lifting tool 28 is lifted, the cold extrusion spline is vertically slid into the feeding channel 23 from the positioning channel 22 through the inclined top plate 282 and the guide groove 213 on the baffle, and then the feeding cylinder extension button is pressed, the feeding support 283 sends the vertical cold extrusion spline to the material reaching position, that is, the material taking position of the manipulator.

[0050] Next, after each position returns to the initial position, the knob is twisted to the automatic position, and the automatic state is entered. The cold-extruded spline to be put into the hopper 112, and the feeding machine 11 will move to send the cold-extruded spline to the feeding conveyor 12. After passing through the feeding limiting plate, the cold-extruded spline reaching the positioning detection device is transverse.

[0051] Then the device works according to the above-mentioned work flow, and the three positions are synchronized, and the above-mentioned work flow is repeated, and the device forms a complete work cycle. If a fault occurs during automatic operation or the material is insufficient, an alarm will be given. Only the operator takes down the workpiece to exclude the fault or replenishes the material, and presses the reset button to automatically cancel the alarm.

[0052] Finally, it should be explained that the above specific embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application is described in detail with reference to examples, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A positioning and finishing apparatus for a cold-finished spline, characterized by, Including loading device (1) and positioning arrangement device (2), the loading device (1) is installed in the front end of positioning arrangement device (2); The positioning arrangement device (2) includes mounting frame (21), positioning channel (22), feeding channel (23), positioning detection mechanism (24), lifting mechanism (25), horizontal conveying mechanism (26), steering mechanism (27) and jacking tool (28), the positioning channel (22) and feeding channel (23) are both through the upper surface of the mounting frame (21), the positioning channel (22) is close to feeding channel (23), the front end of the positioning channel (22) is connected with the loading device (1), the first support frame (29), the second support frame (210) and the jacking tool (28) are arranged in the positioning channel (22) from front to back, the positioning detection mechanism (24) is arranged on the upper surface of the mounting frame (21) and faces the second support frame (210), the bottom of the second support frame (210) is connected with the steering mechanism (27), the first support frame (29), the steering mechanism (27) and the jacking tool (28) are all installed on the lifting mechanism (25), the lifting mechanism (25) is installed on the horizontal conveying mechanism (26), the both sides of the positioning channel (22) and feeding channel (23) are provided with shielding plates (212), and the shielding plates (212) are provided with positioning grooves (211) for positioning the cold extrusion spline.

2. The positioning and sorting apparatus for cold-extrusion splines as claimed in claim 1, wherein, The loading device (1) includes a feeding machine (11) and a feeding conveyor belt (12), the feeding conveyor belt (12) is installed at the upper end of the feeding machine (11), the feeding machine (11) includes a machine body frame (111), a hopper (112) is arranged in the machine body frame (111), a plurality of feeding steps (113) are arranged above the hopper (112), and a reciprocating feeding plate (114) is arranged on the outer side of each feeding step (113). A plurality of reciprocating feeding plates (114) are reciprocatingly lifted by driving equipment.

3. The positioning and alignment apparatus for cold-drawn splines as set forth in claim 2, wherein, The end of the feeding conveyor belt (12) is provided with a feeding limiting block (121), and the machine body frame (111) is provided with a backflow chute (115) at the feeding limiting block (121). The end of the backflow chute (115) is communicated with the hopper (112).

4. The positioning and alignment apparatus for cold-drawn splines as set forth in claim 2, wherein, The feeding steps (113) are inclined inward, and a plurality of reciprocating feeding plates (114) are synchronously lifted.

5. The positioning and alignment apparatus for cold-drawn splines as set forth in claim 1, wherein, The positioning detection mechanism (24) includes a positioning cylinder (241) and a detection sensor (242), the positioning cylinder (241) is located on one side of the positioning channel (22), and the detection sensor (242) is located on the other side of the positioning channel (22). The detection sensor (242) is used for detecting the inner wall of the cold extrusion spline.

6. The positioning and alignment apparatus for cold-drawn splines as set forth in claim 1, wherein, The lifting mechanism (25) comprises a mounting bracket (251), a mounting plate (252) and a lifting cylinder (253), the lifting cylinder (253) is vertically installed on the mounting bracket (251), the piston rod of the lifting cylinder (253) is connected with the mounting plate (252), and the first support frame (29), the steering mechanism (27) and the jacking tool (28) are all mounted on the mounting plate (252).

7. The positioning and alignment apparatus for cold-drawn splines as claimed in claim 6, wherein The horizontal conveying mechanism (26) comprises a horizontal conveying cylinder (261) and a sliding rail (262), the sliding rail (262) is horizontally installed on the mounting frame (21), the mounting bracket (251) is in sliding connection with the sliding rail (262), and the piston rod of the horizontal conveying cylinder (261) is connected with the mounting bracket (251).

8. The positioning and alignment apparatus for cold-drawn splines as recited in claim 1, wherein, The jacking tool (28) comprises a connecting rod (281), an inclined top plate (282) and a conveying bracket (283), the bottom of the connecting rod (281) is mounted on the lifting mechanism (25), the inclined top plate (282) is mounted at the top end of the connecting rod (281), the inclined top plate (282) is inclined towards the feeding channel (23), the conveying bracket (283) is connected on the connecting rod (281), and the conveying bracket (283) is located in the feeding channel (23).

9. The positioning and alignment apparatus for cold-drawn splines as claimed in claim 8, wherein, A positioning groove (211) is arranged between the jacking tool (28) and the feeding channel (23), and a guide groove (213) inclined towards the feeding channel (23) is arranged in the positioning groove (211).

10. The positioning and alignment apparatus for cold-drawing splines as set forth in claim 1, wherein, The controller (3) is connected with the positioning detection mechanism (24), the lifting mechanism (25), the horizontal conveying mechanism (26) and the steering mechanism (27), respectively, the positioning detection mechanism (24) is used for detecting the pipe wall of the pipe to be cold-extruded spline, and a detection signal is generated when the pipe wall of the pipe to be cold-extruded spline is detected. The controller (3) can control the horizontal conveying mechanism (26) and the lifting mechanism (25) to operate, and can control the steering mechanism (27) to steer when the lifting mechanism (25) is lifted according to the detection signal.

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