Axle turning machine tool and automobile axle turning method

Abstract

The invention relates to the technical field of automobile axle turning, and discloses an axle turning machine tool and an automobile axle turning method.The axle turning machine tool comprises a rack, and parallel guide rails are arranged above the rack; a knife rest assembly, a storage mechanism, a feeding mechanism and a tailstock are arranged on the parallel guide rails; the storage mechanism is located on the opposite side of the tool rest assembly, the feeding mechanism and the storage mechanism are oppositely arranged, the storage mechanism comprises a limiting block, a storage channel and a control linkage end, the limiting block is arranged at the bottom of an inner cavity of the storage channel in a sliding mode, and the control linkage end is located at the bottom of the limiting block. The feeding mechanism comprises a feeding sliding table, a moving table and a carrying base. The automatic feeding device has the advantages that the wheel shafts do not need to be manually placed between the rack and the tailstock and calibrated during turning of the wheel shafts, automatic feeding of the wheel shafts of the same model is achieved, only the wheel shafts of the same model in the batch and the machined first wheel shaft need to be subjected to position calibration of the moving table, and automatic turning treatment does not need multiple times of calibration.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile axle turning, in particular to an axle turning machine and an automobile axle turning method. BACKGROUND

[0002] Axle refers to a cross-shaped transmission structure composed of a wheel and a shaft, which can rotate around a common axis; during axle machining, the axle blank needs to be chamfered, threaded, bored and processed in the machine tool; the existing axle machining has the following problems:

[0003] The operator needs to manually carry the axle between the machine tool spindle and the tailstock, and axially position and coaxially align it; frequent carrying and alignment result in low production efficiency and high labor intensity; manual positioning accuracy is easily affected by operating experience; when processing the same batch of axles, the feeding process needs to be repeated after each completion; there is a lack of continuous feeding mechanism for batch workpieces, and it is difficult to achieve efficient continuous machining; although the existing automatic feeding scheme (such as mechanical arm grabbing) can reduce manual intervention, it needs to be equipped with a complex sensing system and high-precision motion mechanism, which significantly increases the equipment cost; and due to the round edge characteristics of the axle, it is difficult to pick up the axle by the mechanical hand when storing; the method of rolling the axle according to its characteristics is prone to uncontrollable rolling due to its own weight in the inclined channel, resulting in simultaneous sliding or collision of multiple workpieces, and it is difficult to pick up and release a single axle. SUMMARY

[0004] (I) Technical problems solved

[0005] In view of the deficiencies of the prior art, the present application provides an axle turning machine and an automobile axle turning method, which has the advantages of not needing to manually place the axle between the rack and the tailstock during axle turning machining, and calibrate it to realize automatic feeding of the same type of axle; only the first axle of the same type of axle in the batch needs to calibrate the position of the moving table, and the automatic turning process does not need to be calibrated multiple times, etc., solving the problems that the operator needs to manually carry the axle between the machine tool spindle and the tailstock, and axially position and coaxially align it; frequent carrying and alignment result in low production efficiency and high labor intensity; manual positioning accuracy is easily affected by operating experience; when processing the same batch of axles, the feeding process needs to be repeated after each completion; there is a lack of continuous feeding mechanism for batch workpieces, and it is difficult to achieve efficient continuous machining.

[0006] (II) Technical solutions

[0007] To solve the above-mentioned operator needs to manually carry the wheel shaft between the spindle and tailstock of the machine tool, and axial positioning and coaxial calibration, frequent transport and calibration lead to low production efficiency, labor intensity, and manual positioning accuracy is easily affected by operation experience, when the same batch of wheel shafts are processed, the feeding process needs to be repeated after each completion, lacking of continuous feeding mechanism for batch workpieces, it is difficult to realize efficient continuous processing, the technical problem is solved by the technical scheme as follows: a wheel shaft turning machine tool, comprising a rack, a parallel guide rail is arranged above the rack; a tool holder assembly, a storage mechanism, a feeding mechanism and a tailstock are arranged on the parallel guide rail; the storage mechanism is located on the opposite side of the tool holder assembly, the feeding mechanism is arranged opposite to the storage mechanism, the storage mechanism comprises a limiting block, a storage channel and a control linkage end, the limiting block is slidingly arranged in the inner cavity bottom of the storage channel, the control linkage end is located at the bottom of the limiting block, the feeding mechanism comprises a feeding sliding table, a moving table and a carrier seat, the bottom of the feeding sliding table is slidingly arranged on the parallel guide rail, the moving table is slidingly installed on the feeding sliding table, the carrier seat is located at the middle part above the moving table, and the side of the moving table is opposite to the control linkage end; the moving table moves towards the storage mechanism, the moving table pushes the control linkage end, the control linkage end drives the limiting block to move at the bottom of the storage channel, and the wheel shaft at the bottom of the storage channel is separated from the limiting block; the tailstock is located at the tail part of the parallel guide rail.

[0008] Preferably, the storage channel is in a cross structure, and the wheel part of the wheel shaft is vertically placed in the storage channel, the shaft part of the wheel shaft is transversely placed in the storage channel, the storage channel is inclined to the side of the rack, and the bottom of the part of the storage channel where the wheel shaft is placed is provided with a limiting moving groove, and the limiting block and the control linkage end are located in the limiting moving groove.

[0009] Preferably, the limiting block is in a Y-shaped structure, the limiting block comprises a positioning end and a limiting end, the positioning end is arranged close to the side of the feeding mechanism, and the positioning end extends upward in the storage channel, the control linkage end is located at the bottom of the positioning end and the limiting end, and the positioning end, the limiting end and the control linkage end form a Y-shaped structure.

[0010] Preferably, the limiting block is provided with a control plate on one side, the bottom of the part of the storage channel where the wheel shaft is placed is provided with a control moving groove, the control plate is located in the control moving groove, a control tooth is arranged above the control plate, and every two control teeth correspond to the wheel part of a wheel shaft.

[0011] Preferably, one side of the control linkage end is provided with a control push rod, the control push rod extends at the bottom of the control plate, the middle part of the control linkage end is rotationally connected with the limiting movement slot, when the moving table pushes the control linkage end to move, the positioning end moves towards the bottom of the storage channel, the limiting end and the control plate move upwards synchronously, and the control tooth moves into the storage channel before the limiting end.

[0012] Preferably, one side of the moving table close to the storage mechanism is provided with a push plate, the other end of the control linkage end is correspondingly provided with one end of the push plate, a guide groove is formed in the side of the control plate, a guide rod is arranged on the side of the control movement slot, and the control plate moves along the guide rod.

[0013] Preferably, a feeding screw rod is arranged on the feeding slide table, the moving table is slidably connected with the feeding slide table, the feeding screw rod is threadedly connected with the moving table, the carrier seat comprises a lifting table, the lifting table is arranged above the moving table, an arc-shaped groove is arranged above the lifting table, the arc-shaped groove is used for placing the wheel part of an axle, the shaft part of the axle is arranged on the two sides above the arc-shaped groove, and a feeding port is arranged on one side of the lifting table and corresponds to the arc-shaped groove.

[0014] Preferably, the tool holder assembly comprises a tool holder slide table, a four-station tool holder turret and a tool clamp nut, the tool holder slide table is slidably arranged at the bottom of the parallel guide rail, the four-station tool holder turret is slidably installed on the tool holder slide table, and the tool clamp nut is located on the four-station tool holder turret.

[0015] Preferably, a main shaft box is arranged on the rack, three-jaw chucks are arranged on the end face of the main shaft box, and a mounting sleeve is arranged on the tail seat, and the three-jaw chucks and the mounting sleeve are coaxially arranged.

[0016] The application further provides an automobile axle turning method.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the application provides an automobile axle turning method and an automobile axle turning machine tool, and has the following beneficial effects:

[0019] 1. The axle turning machine and the axle turning method of the automobile, by controlling the feeding slide to drive the moving table and the storage channel in the storage mechanism to align, the moving table moves to the storage channel, and pushes the control linkage end at the bottom of the limiting block, so that the control linkage end drives the limiting block to move, and releases the axle limited by the limiting block, the axle rolls along the storage channel, and rolls above the moving table, then controls the moving table to move on the feeding slide, so that the axle on the moving table is coaxial with the tailstock, then controls the feeding slide and the tailstock to move synchronously along the parallel guide rail to the rack direction, and then normally controls the tool holder assembly to turn the axle; without placing the axle between the rack and the tailstock manually during the turning of the axle, and calibrating, the automatic feeding of the same type of axle is realized, only the position of the moving table is calibrated by the first axle of the same type of axle in the batch, without multiple calibration and automatic turning.

[0020] 2. The axle turning machine and the axle turning method of the automobile, by placing the axle in the cross-shaped storage channel, so that the axle moves stably in the storage channel, and then cooperating with the limiting movement groove at the bottom of the storage channel, under the control of the limiting block and the control linkage end, the movement of the axle in the storage channel is controlled, and then the automatic feeding of the feeding mechanism can be realized, wherein the limiting block in Y-shaped structure is inserted into the storage channel when storing the axle, and the positioning end of the limiting block is positioned at the tail end of the axle, so as to be at the outlet of the storage channel, so as to enter the feeding mechanism during feeding; when feeding the axle, the moving table in the feeding mechanism moves to the storage mechanism direction, and pushes the control linkage end at the bottom of the limiting block, that is, pushes the bottom of the Y-shaped structure, at this time the positioning end swings downward until it moves out of the storage channel, and at the same time the limiting end moves up to the storage channel, in this process the limiting end moves between the last axle and the second last axle, the last axle loses the obstruction of the positioning end, and rolls into the feeding mechanism along the storage channel, while the limiting end abuts against the second last axle to avoid other axles in the storage channel from rolling together.

[0021] 3、The axle turning machine and the axle turning method of the automobile, through the control plate set on one side of the limiting block moving in the control moving groove, cooperating with the control tooth above to control the axle to be turned, when the last axle in the storage channel is loaded, the control tooth extends into the storage channel, controls the third last axle and other axles above, after the last axle is loaded, the control linkage end resets, at this time the second last axle enters between the limiting end and the positioning end, with the continuous resetting of the control linkage end, the control tooth releases the control of the third last axle and other axles above, and moves downward to the limiting end along the storage channel, avoiding that when the control linkage end resets after the last axle is loaded, other axles move downward along the storage channel, the impact on the limiting block and the axle in the limiting block is too large, resulting in that the next axle to be loaded is directly discharged from the storage channel.

[0022] 4、The axle turning machine and the axle turning method of the automobile, through the control linkage end set on one side of the control linkage end, when the control linkage end is pushed by the moving table, the control linkage end drives the control push rod to push the control plate, so that the control plate drives the control tooth to move upward, controls other axles in the storage channel, wherein the push plate set on one side of the moving table moves to the storage mechanism direction when loading, so that the push plate extends into the limiting moving groove and pushes the control linkage end in the limiting moving groove to move, and then the limiting block away from the control linkage end swings to contact the control of the last axle, at the same time, the control linkage end drives the control plate to move upward along the direction of the guide rod through the control push rod, so that the control tooth on the control plate controls other axles. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is one of the overall three-dimensional structure schematic diagrams of the application;

[0024] Figure 2 It is an overall front view plane structure schematic diagram of the application;

[0025] Figure 3 It is the second three-dimensional structure schematic diagram of the application;

[0026] Figure 4 It is an overall top view plane structure schematic diagram of the application;

[0027] Figure 5 It is one of the storage mechanism part sectional view and the loading mechanism three-dimensional structure schematic diagram of the application;

[0028] Figure 6 It is an internal sectional view plane structure schematic diagram of the storage mechanism and the loading mechanism of the application;

[0029] Figure 7Figure 2 is a schematic diagram of a partial cross-section of the storage mechanism and a stereoscopic structure of the feeding mechanism of the present application;

[0030] Figure 8 Figure 3 is a schematic diagram of a partial cross-section of the storage mechanism of the present application;

[0031] Figure 9 Figure 4 is a schematic diagram of the feeding mechanism of the present application.

[0032] In the figure: 1, frame; 11, parallel guide rail; 2, tool holder assembly; 21, tool holder sliding table; 22, four-station tool holder turret; 23, tool clamp nut; 3, storage mechanism; 31, limiting block; 311, positioning end; 312, limiting end; 32, storage channel; 321, limiting moving groove; 322, control moving groove; 323, guide rod; 33, control linkage end; 331, control push rod; 34, control plate; 341, control tooth; 4, feeding mechanism; 41, feeding sliding table; 411, feeding screw; 42, moving table; 421, push plate; 43, object carrier; 431, lifting table; 432, arc-shaped groove; 433, feeding port; 5, tailstock; 51, mounting sleeve; 6, main shaft box; 61, three-jaw chuck. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0034] Please refer to Figures 1-9The utility model provides a kind of axle turning lathe, including rack 1, which is provided with parallel guide 11 above;Tool holder assembly 2, storage mechanism 3, feeding mechanism 4 and tailstock 5 are provided on the parallel guide 11;The storage mechanism 3 is located on the opposite side of the tool holder assembly 2, the feeding mechanism 4 is oppositely arranged with the storage mechanism 3, the storage mechanism 3 includes limiting block 31, storage passage 32 and control linkage end 33, the limiting block 31 is slidably arranged in the inner cavity bottom of the storage passage 32, and the control linkage end 33 is located at the bottom of the limiting block 31;The feeding mechanism 4 includes feeding sliding table 41, moving table 42 and carrier seat 43, the bottom of the feeding sliding table 41 is slidably arranged on the parallel guide 11, the moving table 42 is slidably installed on the feeding sliding table 41, and the carrier seat 43 is located at the middle part above the moving table 42;The moving table 42 is oppositely arranged with the control linkage end 33 on one side;The moving table 42 moves towards the storage mechanism 3, the control linkage end 33 is pushed by the moving table 42, the limiting block 31 is driven by the control linkage end 33 to move at the bottom of the storage passage 32, and the axle located at the bottom of the storage passage 32 is separated from the limiting block 31;The tailstock 5 is located at the tail of the parallel guide 11.

[0035] In actual use, a numerical control module is needed to control the operation of the machine tool, and the numerical control module is an existing automatic programming;

[0036] In use, first, the axle to be machined is placed in the storage passage 32 of the storage mechanism 3, one axle is taken and placed on the lifting table 431 of the moving table 42, the axle and the tailstock 5 are aligned, the moving table 42 is aligned with the storage passage 32 by the feeding sliding table 41, the moving table 42 moves towards the storage passage 32 and pushes the control linkage end 33 at the bottom of the limiting block 31, the control linkage end 33 drives the limiting block 31 to move, the axle limited by the limiting block 31 is released, the axle rolls along the storage passage 32 and rolls above the moving table 42, the moving table 42 moves on the feeding sliding table 41 to make the axle on the moving table 42 coaxial with the tailstock 5, the feeding sliding table 41 and the tailstock 5 move towards the rack 1 along the parallel guide 11, and then the tool holder assembly 2 is controlled to turn the axle normally.

[0037] Further, the storage channel 32 is in a cross structure, and the wheel part of the wheel shaft is vertically placed in the storage channel 32, and the shaft part of the wheel shaft is transversely placed in the storage channel 32, the storage channel 32 is obliquely placed at the side of the rack 1, the bottom of the storage channel 32 where the wheel shaft is placed is provided with a limiting moving groove 321, and the limiting block 31 and the control linkage end 33 are both located in the limiting moving groove 321; the wheel shaft is placed in the storage channel 32 in the cross structure, so that the wheel shaft moves stably in the storage channel 32, and then the limiting moving groove 321 at the bottom of the storage channel 32 is matched, and the movement of the wheel shaft in the storage channel 32 is controlled under the control of the limiting block 31 and the control linkage end 33, so that the automatic feeding of the feeding mechanism 4 can be realized.

[0038] Further, the limiting block 31 is in a Y-shaped structure, the limiting block 31 comprises a positioning end 311 and a limiting end 312, the positioning end 311 is located close to the side of the feeding mechanism 4, and the positioning end 311 extends upwardly in the storage channel 32, the control linkage end 33 is located at the bottom of the positioning end 311 and the limiting end 312, and the positioning end 311, the limiting end 312 and the control linkage end 33 form a Y-shaped structure; when the wheel shaft is stored, the positioning end 311 of the limiting block 31 extends into the storage channel 32, and the last wheel shaft is positioned so as to be located at the outlet of the storage channel 32, so as to be easily fed into the feeding mechanism 4; when the wheel shaft is fed, the moving table 42 in the feeding mechanism 4 moves towards the storage mechanism 3, and pushes the control linkage end 33 at the bottom of the limiting block 31, that is, pushes the bottom of the Y-shaped structure, at this time the positioning end 311 swings downwardly until it moves out of the storage channel 32, and at the same time the limiting end 312 moves upwardly into the storage channel 32, in this process the limiting end 312 moves between the last wheel shaft and the second last wheel shaft, the last wheel shaft is no longer blocked by the positioning end 311, and falls into the feeding mechanism 4 along the storage channel 32, and the limiting end 312 abuts against the second last wheel shaft to avoid that the other wheel shafts in the storage channel 32 fall together.

[0039] Further, one side of the limiting block 31 is provided with a control plate 34, the bottom of the storage channel 32 is provided with a control moving groove 322, the control plate 34 is located in the control moving groove 322, the control plate 34 is provided with control teeth 341 above, and the wheel part of every two control teeth 341 corresponds to one axle; the control plate 34 on one side of the limiting block 31 is moved in the control moving groove 322, and the control teeth 341 above are matched to control the axle to be turned; when the last axle in the storage channel 32 is fed, the control teeth 341 are upwardly inserted into the storage channel 32, the third last axle and other axles above are controlled, after the last axle is completed, the control linkage end 33 is reset, at this time, the second last axle enters between the limiting end 312 and the positioning end 311, with the continuous reset of the control linkage end 33, the control teeth 341 are released from the control of the third last axle and other axles above, and are moved downwardly along the storage channel 32 to the limiting end 312, so that the impact of the limiting block 31 and the axle in the limiting block 31 is not too large, and the next axle to be fed is not directly discharged from the storage channel 32.

[0040] Further, one side of the limiting block 31 is provided with a control plate 34, the bottom of the storage channel 32 is provided with a control moving groove 322, the control plate 34 is located in the control moving groove 322, the control plate 34 is provided with control teeth 341 above, and the wheel part of every two control teeth 341 corresponds to one axle; the control plate 34 on one side of the limiting block 31 is moved in the control moving groove 322, and the control teeth 341 above are matched to control the axle to be turned; when the last axle in the storage channel 32 is fed, the control teeth 341 are upwardly inserted into the storage channel 32, the third last axle and other axles above are controlled, after the last axle is completed, the control linkage end 33 is reset, at this time, the second last axle enters between the limiting end 312 and the positioning end 311, with the continuous reset of the control linkage end 33, the control teeth 341 are released from the control of the third last axle and other axles above, and are moved downwardly along the storage channel 32 to the limiting end 312, so that the impact of the limiting block 31 and the axle in the limiting block 31 is not too large, and the next axle to be fed is not directly discharged from the storage channel 32.

[0041] Further, the mobile platform 42 is provided with a push plate 421 on one side close to the storage mechanism 3, the other end of the control linkage end 33 is correspondingly provided with the push plate 421, the control plate 34 is provided with a guide groove on the side, the control mobile groove 322 is provided with a guide rod 323 on the side, and the control plate 34 moves along the guide rod 323; when loading, the mobile platform 42 moves to the storage mechanism 3, so that the push plate 421 extends into the limiting mobile groove 321 and pushes the control linkage end 33 in the limiting mobile groove 321 to move, so that the limiting block 31 away from the control linkage end 33 swings to contact and control the last wheel shaft, and the control linkage end 33 drives the control plate 34 to move upward along the guide rod 323 through the control push rod 331, so that the control teeth 341 on the control plate 34 control other wheel shafts.

[0042] Further, the loading slide table 41 is provided with a loading lead screw 411, the mobile platform 42 is slidably connected with the loading slide table 41, the loading lead screw 411 is threadedly connected with the mobile platform 42, the object carrier 43 comprises a lifting platform 431, the lifting platform 431 is arranged above the mobile platform 42, an arc-shaped groove 432 is arranged above the lifting platform 431, the arc-shaped groove 432 is used for placing the wheel part of the wheel shaft, and the shaft part of the wheel shaft is arranged on the two sides above the arc-shaped groove 432, and a feeding port 433 is arranged on one side of the lifting platform 431 and corresponds to the arc-shaped groove 432; the loading lead screw 411 threadedly connected with the mobile platform 42 controls the movement of the mobile platform 42 relative to the storage mechanism 3, when loading, the loading lead screw 411 drives the mobile platform 42 to move close to the storage mechanism 3, then the wheel shaft in the storage mechanism 3 rolls into the lifting platform 431 on the object carrier 43, the wheel shaft enters through the feeding port 433 on one side of the lifting platform 431, and stays in the arc-shaped groove 432 until contacting the arc-shaped groove 432, and then is transferred to between the rack 1 and the tailstock 5 through the loading slide table 41.

[0043] Further, the tool holder assembly 2 comprises a tool holder slide table 21, a four-station tool holder turret 22 and a tool clamp nut 23; the tool holder slide table 21 is slidably arranged at the bottom of the parallel guide rail 11, the four-station tool holder turret 22 is slidably installed on the tool holder slide table 21, and the tool clamp nut 23 is located on the four-station tool holder turret 22; the tool holder slide table 21 in the tool holder assembly 2 drives the four-station tool holder turret 22 to move and position, after the turning tool is installed on the four-station tool holder turret 22 through the tool clamp nut 23, the turning tool processes the wheel shaft.

[0044] Further, the rack 1 is provided with a spindle box 6, the spindle box 6 is provided with a three-jaw chuck 61 at the end face, the tail seat 5 is provided with a mounting sleeve 51, and the three-jaw chuck 61 is coaxially arranged with the mounting sleeve 51; the axle is fixed through the cooperation of the three-jaw chuck 61 provided at the end face of the spindle box 6 arranged on the rack 1 and the mounting sleeve 51 on the tail seat 5, then the spindle box 6 drives the three-jaw chuck 61 and the axle to rotate relative to the turning tool, so as to realize the turning processing, wherein the storage mechanism 3 is arranged on the opposite side of the tool holder assembly 2, after the installation of the axle, the mounting sleeve 51 and the three-jaw chuck 61 is completed, the feeding sliding table 41 moves with the moving table 42 to the space at the bottom of the three-jaw chuck 61, at the same time, the material loading seat 43 moves to the other side away from the storage mechanism 3, so as to not affect the movement of the tool holder sliding table 21.

[0045] The application discloses an axle turning machine tool and an axle turning method.

[0046] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wheel spindle turning machine comprising a machine frame (1), characterised in that: Parallel guide rails (11) are arranged above the rack (1); a tool holder assembly (2), a storage mechanism (3), a feeding mechanism (4) and a tailstock (5) are arranged on the parallel guide rails (11); the storage mechanism (3) is located on the opposite side of the tool holder assembly (2), the feeding mechanism (4) is arranged opposite to the storage mechanism (3), the storage mechanism (3) comprises a limiting block (31), a storage channel (32) and a control linkage end (33), the limiting block (31) is slidingly arranged in the inner cavity bottom of the storage channel (32), the control linkage end (33) is located at the bottom of the limiting block (31), the feeding mechanism (4) comprises a feeding sliding table (41), a moving table (42) and a material carrying seat (43), the bottom of the feeding sliding table (41) is slidingly arranged on the parallel guide rails (11), the moving table (42) is slidingly installed on the feeding sliding table (41), the material carrying seat (43) is located above the middle part of the moving table (42), and the side of the moving table (42) is opposite to the control linkage end (33); the moving table (42) moves towards the storage mechanism (3), the moving table (42) pushes the control linkage end (33), the control linkage end (33) drives the limiting block (31) to move at the bottom of the storage channel (32), and the wheel shaft at the bottom of the storage channel (32) is separated from the limiting block (31); the tailstock (5) is located at the tail of the parallel guide rails (11).

2. A wheel spindle turning machine according to claim 1, characterised in that: The storage channel (32) is in a cross structure, the wheel part of the wheel shaft is vertically placed in the storage channel (32), the shaft part of the wheel shaft is transversely placed in the storage channel (32), the storage channel (32) is obliquely arranged on the side of the rack (1), the bottom of the wheel shaft part of the storage channel (32) is provided with a limiting moving groove (321), and the limiting block (31) and the control linkage end (33) are located in the limiting moving groove (321).

3. A wheel spindle turning machine according to claim 2, characterised in that: The limiting block (31) is in a Y-shaped structure, the limiting block (31) comprises a positioning end (311) and a limiting end (312), the positioning end (311) is arranged close to the side of the feeding mechanism (4), the positioning end (311) extends upwards in the storage channel (32), the control linkage end (33) is located at the bottom of the positioning end (311) and the limiting end (312), and the positioning end (311), the limiting end (312) and the control linkage end (33) form a Y-shaped structure.

4. A wheel spindle turning machine according to claim 3, characterised in that: The limiting block (31) is provided with a control plate (34) on one side, the bottom of the wheel shaft part of the storage channel (32) is provided with a control moving groove (322), the control plate (34) is located in the control moving groove (322), a control tooth (341) is arranged above the control plate (34), and every two control teeth (341) correspond to the wheel part of a wheel shaft.

5. A wheel spindle turning machine according to claim 4, characterised in that: The control linkage end (33) is provided with a control push rod (331) on one side, the control push rod (331) extends at the bottom of the control plate (34), the middle part of the control linkage end (33) is rotationally connected with the limiting moving groove (321), when the moving table (42) pushes the control linkage end (33) to move, the positioning end (311) moves towards the bottom of the storage channel (32), the limiting end (312) and the control plate (34) move upwards synchronously, and the control tooth (341) moves into the storage channel (32) before the limiting end (312) moves upwards.

6. A wheel spindle turning machine according to claim 5, characterised in that: The moving table (42) is provided with a push plate (421) on one side close to the storage mechanism (3), the other end of the control linkage end (33) is correspondingly provided with the push plate (421), a guide groove is formed in the side surface of the control plate (34), a guide rod (323) is arranged on the side surface of the control moving groove (322), and the control plate (34) moves along the guide rod (323).

7. A wheel spindle turning machine according to claim 1, wherein: The upper feeding sliding table (41) is provided with an upper feeding lead screw (411), the moving table (42) is slidably connected with the upper feeding sliding table (41), the upper feeding lead screw (411) is threadedly connected with the moving table (42), the object carrier (43) comprises a lifting table (431), the lifting table (431) is arranged above the moving table (42), an arc-shaped groove (432) is arranged above the lifting table (431), the arc-shaped groove (432) is used for placing the wheel part of an axle, and the shaft part of the axle is arranged on the two sides above the arc-shaped groove (432), and a feeding port (433) is arranged on one side of the lifting table (431) and corresponds to the arc-shaped groove (432).

8. A wheel spindle turning machine according to claim 1, characterised in that: The tool holder assembly (2) comprises a tool holder sliding table (21), a four-station tool holder turret (22) and a tool holder nut (23), the tool holder sliding table (21) is slidably arranged at the bottom of the parallel guide rail (11), the four-station tool holder turret (22) is slidably arranged on the tool holder sliding table (21), and the tool holder nut (23) is arranged on the four-station tool holder turret (22).

9. A wheel spindle turning machine according to claim 1, wherein: The rack (1) is provided with a spindle box (6), the spindle box (6) is provided with a three-jaw chuck (61) on the end face, the tail seat (5) is provided with a mounting sleeve (51), and the three-jaw chuck (61) and the mounting sleeve (51) are coaxially arranged.

10. A method of turning an automotive axle, characterized by, A wheel axle turning machine is used, as claimed in any one of claims 1-9.

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