Lightweight processing device for axle head of trailer axle

Abstract

The invention relates to the field of machining, and discloses a trailer axle head lightweight machining device which comprises a chuck rotationally mounted on the left side of the inner wall of a base, three sets of moving blocks are slidably mounted on the inner wall of the chuck, and clamping jaws are fixedly mounted on the right sides of the moving blocks; a workpiece is clamped between the multiple sets of clamping jaws, a guide groove is formed in the center of the top of the inner wall of each clamping jaw, a second spring and a connecting column are movably connected into each guide groove in a sleeved mode, and a clamping plate is elastically connected to one end of each connecting column. The transmission liquid is kept to be filled between the adaptive blocks all the time, and when the clamping plate is completely attached to the workpiece, the bolt rotates and abuts against the sealing plate, so that movement of the sealing plate is limited, deformation of the clamping plate is limited, the clamping plate can generate rigid clamping force on the workpiece with a larger contact area, and the clamping effect is improved. And rigid damage to the workpiece in the clamping process of the clamping jaw is avoided.

Description

Technical Field

[0001] This application relates to the field of machining technology, and in particular to a lightweight machining device for trailer axle heads. Background Technology

[0002] Axle heads are key components in mechanical equipment, widely used in transmission and support systems of forklifts, trailers, concrete mixers, and automobiles. Their core functions include connecting rotating parts, supporting operating loads, and ensuring equipment stability. As a type of metal shaft, trailer axle heads often require a lathe for machining. The spindle drives the axle head to rotate, and a cutting tool is used to machine the surface of the axle head. When fixing the axle head, multiple chucks on the spindle usually press against the outer surface of the axle head. However, this rigid pressing can easily cause rigid compression damage to the outer surface of the axle. Due to the curvature of the axle head's outer surface, the contact between the chuck and the axle head is usually a line contact, resulting in a small and uneven force area. More importantly, the strong pressing force generated by the chuck is needed to provide the frictional force for clamping the axle head. The small contact area results in a very low upper limit of friction, leading to excessive clamping force required to fix the axle head. The frictional force generated to resist rotation and cutting is also insufficient, easily causing the axle head to loosen or even fail to complete the machining process. Therefore, a solution is urgently needed. Summary of the Invention

[0003] This application proposes a lightweight processing device for trailer axle heads, which has the advantages of good fixing effect and effective protection of axle heads, and is used to solve the problem of rigid damage caused by the rigid clamping of axle heads by chucks in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution: a lightweight processing device for trailer axle heads, comprising a base, wherein a baffle, a tool holder, and a tailstock are mounted on the top of the base, and further comprising: A chuck is rotatably mounted on the left side of the inner wall of the base. Three sets of moving blocks are slidably mounted on the inner wall of the chuck. A jaw is fixedly mounted on the right side of the moving blocks. Workpieces are clamped between the multiple sets of jaws. A guide groove is provided at the top center of the inner wall of the chuck. A spring and a connecting post are movably sleeved inside the guide groove. One end of the connecting post is elastically connected to a clamping plate. The clamping plate is adapted to abut against the outer surface of the workpiece. Multiple sets of slots are provided on the left and right sides of the top of the inner wall of the chuck. A fixing cavity is provided inside the slot. An adapter block is sealed and engaged inside the slot. The bottom of the adapter block is adapted to abut against the clamping plate. A sealing plate is sealed and engaged inside the fixing cavity. The fixing cavity is filled with transmission fluid located between the sealing plate and the slot. A bolt is threaded on the outer side of the chuck. The inner end of the bolt abuts against the sealing plate.

[0005] Preferably, a lead screw is mounted on the front of the base, the tool holder is slidably mounted on the surface of the lead screw, the tailstock is fixedly mounted on the right side of the top of the base, and a motor and a reducer are arranged inside the left side of the base, the motor and reducer being connected to the chuck for transmission.

[0006] Preferably, the claw has a placement groove on the side facing the clamping plate, the adapter block and the connecting post are both located in the placement groove, and a dust cover is fixedly installed on the right side of the claw, which can completely cover the placement groove.

[0007] Preferably, the claws are provided with rounded transitions on both sides near the clamping plate, and the bottom of the clamping plate abuts against the clamping plate.

[0008] Preferably, the two ends of the second spring are elastically connected to the connecting post and the guide groove, respectively. The connecting post is elastically supported inside the guide groove by the second spring, and the second spring is stretched and disposed in the guide groove.

[0009] Preferably, the bottom of the adapter block is set with a rounded transition, and the height of each set of adapter blocks on one side of the placement slot is not equal.

[0010] Preferably, a spring is movably sleeved on the outer surface of the bolt, and both ends of the sealing plate are elastically connected to the fixed cavity and the sealing plate, respectively, with the spring being compressed and disposed in the fixed cavity.

[0011] Preferably, a rubber block is fixedly connected to one end of the connecting column, and one side of the rubber block is fixedly connected to the clamping plate.

[0012] The beneficial effects of this invention are as follows: 1. This device features a redesigned chuck jaw, incorporating a clamping plate for buffering and positioning between the jaw and the workpiece. The line contact has been changed to surface contact. A moving block drives the clamping plate to fully mate with the outer surface of the workpiece, achieving clamping and fixation. To achieve this, the device includes jaws with sliding connecting posts and adapter blocks inside. The connecting posts support the clamping plate and, under the tension of spring two, keep it centered. The adapter blocks abut against the outer side of the clamping plate. When the jaws move the clamping plate... When the clamping plate is fitted and abutted against the outer surface of the workpiece, the curvature of the workpiece causes the clamping plate to bend and deform, thereby generating different counter-push displacements on different fitting blocks. A pair of sealing plates are pressured by a spring, and the transmission fluid is kept full between the fitting blocks. When the clamping plate is fully in contact with the workpiece, the bolts are rotated and abutted against the sealing plate, thereby restricting the movement of the sealing plate and limiting the deformation of the clamping plate. This allows the clamping plate to generate a rigid clamping force on the workpiece with a larger contact area, avoiding rigid damage to the workpiece by the chucks during the clamping process.

[0013] 2. This device also features a placement groove inside the jaws, providing space for the arched portion of the clamping plate when it comes into contact with the workpiece and bends to fit. When dealing with workpieces of different sizes, the clamping plate can achieve a full fit with the workpiece and bend to form different curvatures, thus maintaining a full fit with the workpiece. At this time, the transmission fluid in the fixed cavity bears the pressure caused by the different displacements generated by the different jaws. By using a spring to squeeze the sealing plate and adjusting the displacement of the bolts, the device can adapt to the displacement changes of the sealing plate caused by workpieces of different sizes, thereby enhancing the applicability of the device.

[0014] 3. Finally, the clamping plate of this device is made of metal, which can generate sufficient friction with the outside of the workpiece, thereby achieving efficient fixation of the workpiece. This device uses the clamping plate to wrap around the outside of the workpiece, increasing the force-bearing area of ​​the workpiece. The deformable and adaptable characteristics of the clamping plate achieve flexible positioning. Then, through the adapter block, bolts, sealing plate, and transmission fluid, a rigid clamping and fixation that cannot be displaced is formed. This not only solves the problem of rigid damage caused by rigid clamping, but also solves the problem of unreliable fixation caused by flexible component clamping, significantly improving the practicality of the device. Attached Figure Description

[0015] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles of this application in a clear and understandable manner.

[0016] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein: Figure 1 This is a schematic diagram of the structure of the chuck, moving block, jaws, and workpiece of the present invention; Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A; Figure 3 This is a frontal perspective view of the overall structure of the present invention; Figure 4 This is a cross-sectional view of the chuck and the workpiece of the present invention. Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This is a side cross-sectional view of the claw of the present invention; Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C; Figure 8 This is a schematic diagram showing the separation of the moving block, claw, bolt, clamping plate, adapter block, spring one, sealing plate, spring two, connecting column and rubber block of the present invention. Figure 9 This is a cross-sectional view of the internal structure of the chuck claw of the present invention.

[0017] The components are as follows: 1. Base; 2. Chuck; 3. Moving block; 4. Claw; 5. Workpiece; 6. Dust cover; 7. Bolt; 8. Clamping plate; 9. Adapter block; 10. Fixing cavity; 11. Slot; 12. Spring 1; 13. Sealing plate; 14. Guide groove; 15. Spring 2; 16. Connecting column; 17. Rubber block; 18. Placement slot; 19. Baffle; 20. Tool holder; 21. Tailstock; 22. Transmission fluid. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] Please see Figures 1-9 This embodiment discloses a lightweight machining device for trailer axle heads, including a base 1, a baffle 19, a tool holder 20, and a tailstock 21 mounted on the top of the base 1, and further including: Chuck 2 is rotatably mounted on the left side of the inner wall of base 1. Three sets of moving blocks 3 are slidably mounted on the inner wall of chuck 2. Jaws 4 are fixedly mounted on the right side of the moving blocks 3. Workpieces 5 are clamped between the multiple sets of jaws 4. A guide groove 14 is provided at the top center of the inner wall of the chuck 4. A spring 15 and a connecting post 16 are movably sleeved inside the guide groove 14. One end of the connecting post 16 is elastically connected to a clamping plate 8. The clamping plate 8 is adapted to abut against the outer surface of the workpiece 5. Multiple sets of slots 11 are provided on the left and right sides of the top of the inner wall of the chuck 4. A fixing cavity 10 is provided inside the slot 11. An adapter block 9 is sealed and engaged inside the slot 11. The bottom of the adapter block 9 is adapted to abut against the clamping plate 8. A sealing plate 13 is sealed and engaged inside the fixing cavity 10. The fixing cavity 10 is filled with transmission fluid 22 located between the sealing plate 13 and the slot 11. A bolt 7 is threaded on the outer side of the chuck 4. The inner end of the bolt 7 abuts against the sealing plate 13. This device features a redesigned chuck 4, with a clamping plate 8 added between the chuck 4 and the workpiece 5 for buffering and positioning. The line contact has been changed to surface contact. The clamping plate 8 is fully fitted to the outer surface of the workpiece 5 via the moving block 3 to achieve clamping and fixation. To achieve this, the device incorporates a chuck 4 with a connecting post 16 and an adapter block 9 slidingly mounted inside it. The connecting post 16 supports the clamping plate 8 and, under the tension of the spring 15, keeps the clamping plate 8 centered. The adapter block 9 abuts against the outer side of the clamping plate 8. When the chuck 4 moves the clamping plate 8 to the workpiece 5... When the outer surface of part 5 is fitted and abutted, the clamping plate 8 is bent and deformed by the curvature of the workpiece 5, thereby generating different counter-push displacements on different fitting blocks 9. The spring 12 applies pressure to the sealing plate 13 and keeps the transmission fluid 22 always full between the fitting blocks 9. When the clamping plate 8 is completely in contact with the workpiece 5, the bolt 7 is rotated and abutted against the sealing plate 13, thereby restricting the movement of the sealing plate 13 and thus restricting the deformation of the clamping plate 8. This allows the clamping plate 8 to generate a rigid clamping force on the workpiece 5 with a larger contact area, avoiding rigid damage to the workpiece 5 by the chuck 4 during the clamping process.

[0020] Finally, the clamping plate 8 of this device is made of metal, which can generate sufficient friction between itself and the outside of the workpiece 5, thereby achieving efficient fixation of the workpiece 5. This device uses the clamping plate 8 to wrap around the outside of the workpiece 5, increasing the force-bearing area of ​​the workpiece 5. The flexible positioning is achieved by utilizing the deformable and adaptable characteristics of the clamping plate 8. Then, a rigid clamping and fixing that cannot be displaced is formed by the adapter block 9, bolt 7, sealing plate 13, and transmission fluid 22. This solves both the rigid damage caused by rigid clamping and the problem of unreliable fixation caused by flexible component clamping, significantly improving the practicality of the device.

[0021] In this embodiment, a lead screw is installed on the front of the base 1, the tool holder 20 is slidably installed on the surface of the lead screw, the tailstock 21 is fixedly installed on the right side of the top of the base 1, and a motor and a reducer are provided inside the left side of the base 1. The motor and the reducer are connected to the chuck 2 for transmission. like Figure 3 As shown in the figure, the left side of the chuck 2 is rotatably mounted inside the base 1. The base 1 contains a motor and a reducer, which provide rotational support and power to the chuck 2.

[0022] In this embodiment, the chuck 4 has a placement groove 18 on the side facing the clamping plate 8. The adapter block 9 and the connecting post 16 are both located in the placement groove 18. A dust cover 6 is fixedly installed on the right side of the chuck 4. The dust cover 6 can completely cover the placement groove 18 and cover the opening of the placement groove 18, so as to prevent some debris generated during processing from entering the placement groove 18 and causing the device to jam. This device also provides space for the arched portion of the clamping plate 8 when it comes into contact with the workpiece 5 and bends to fit, by opening a placement groove 18 inside the jaw 4. When facing workpieces 5 of different sizes, the clamping plate 8 can be fully fitted with the workpiece 5 and bend to form different curvatures, thereby maintaining full fit with the workpiece 5. At this time, the transmission fluid 22 located in the inner cavity of the fixed cavity 10 bears the pressure caused by the different displacements generated by the different grooves 11. The sealing plate 13 is squeezed by the spring 12, and the displacement of the bolt 7 is adjusted to adapt to the displacement changes of the sealing plate 13 caused by different sizes of workpieces 5, thereby enhancing the applicability of the device.

[0023] In this embodiment, the claws 4 are both set with rounded transitions on both sides near the clamping plate 8, and the bottom of the clamping plate 8 abuts against the clamping plate 8. like Figure 6 As shown, the outer side of the clamping plate 8 directly abuts against the bottom of the claw 4, which makes it easy for the clamping plate 8 to be undisturbed during subsequent deformation, bending and recovery, while the arc transition design of the claw 4 can reduce the rigid damage to the outer side of the clamping plate 8 caused by the claw 4.

[0024] In this embodiment, the two ends of the second spring 15 are elastically connected to the connecting post 16 and the guide groove 14 respectively. The connecting post 16 is elastically supported inside the guide groove 14 by the second spring 15, and the second spring 15 is stretched and set in the guide groove 14. like Figure 5 , Figure 6 As shown, the clamping plate 8 needs to be in contact with the claw 4, but cannot be fixed. Therefore, it is most appropriate to set a set of connecting posts 16 to be elastically connected to the clamping plate 8 through rubber blocks 17. The connecting posts 16 are inserted into the guide groove 14 through an adapter, and the spring 15 provides a pulling force on the clamping plate 8 to prevent the clamping plate 8 from detaching from the claw 4.

[0025] In this embodiment, the bottom of the adapter block 9 is set to a rounded transition, and the height of each set of adapter blocks 9 on one side of the placement slot 18 is not equal. like Figure 5 , Figure 6 As shown, when the jaw 4 drives the clamping plate 8 to abut against the workpiece 5 and form a clamp, the clamping plate 8 will complete a certain curvature. At this time, the different adapter blocks 9 that abut against it will have different displacements. Therefore, the pressure from the adapter blocks 9 is integrated by the transmission fluid 22 and transmitted to the sealing plate 13. Then, the bolt 7 is rotated to adjust and finally abut against the sealing plate 13. Since the liquid cannot be compressed, the slot 11 can no longer move, and the clamping plate 8 and the workpiece 5 can also be fixed in place, thereby completing the clamping of the workpiece 5.

[0026] In this embodiment, a spring 12 is movably sleeved on the outer surface of the bolt 7, and the two ends of the sealing plate 13 are elastically connected to the fixing cavity 10 and the sealing plate 13 respectively. The spring 12 is compressed and disposed in the fixing cavity 10. like Figure 5 , Figure 6 As shown, a spring 12 needs to be installed in the inner cavity of the fixed cavity 10 to exert pressure on the sealing plate 13. This pressure is responsible for pressing the sealing plate 13 so that the sealing plate 13 can cooperate with the clamping plate 8 and the adapter block 9 to press the transmission fluid 22, so that the transmission fluid 22 can completely fill the space between the sealing plate 13 and the adapter block 9, thereby realizing the lossless transmission between the sealing plate 13 and the adapter block 9.

[0027] In this embodiment, a rubber block 17 is fixedly connected to one end of the connecting column 16, and one side of the rubber block 17 is fixedly connected to the clamping plate 8. like Figure 5 , Figure 6 As shown, the clamping plate 8 will deform as a whole when it is bent. At this time, the rubber block 17 can be provided to connect the column 16 and the clamping plate 8 inexpensively, thereby solving the above problem.

[0028] Working principle: When this device is in operation: First, loosen the moving block 3 and the jaw 4 to restore the clamping plate 8 to a flat state. Install the workpiece 5 into the three sets of clamping plates 8, and then lock the moving block 3. At this time, the moving block 3 begins to move toward the axis of the chuck 2. First, the clamping plate 8 abuts against the outer surface of the workpiece 5 and produces bending deformation to adapt to the outer surface of the workpiece 5. The connecting column 16 and the rubber block 17 move upward relative to the inside of the jaw 4 and are guided by the guide groove 14. Then, as Figure 6 , Figure 7 As shown, the clamping plate 8 arches outward and forms a certain curvature, pushing the multiple sets of adapter blocks 9 that abut against it, causing the multiple sets of adapter blocks 9 to move towards the inside of the slot 11 with different displacements, and transmitting pressure to the sealing plate 13 through the transmission fluid 22, causing the sealing plate 13 to move towards the side of the compression spring 12 until the clamping plate 8 is completely abutting against and fitting against the outer surface of the workpiece 5. At this time, the moving block 3 stops locking and keeps the claw 4 in the predetermined position. Finally, rotate and adjust bolt 7 so that bolt 7 abuts against one side of sealing plate 13, so that both sides of sealing plate 13 are rigidly limited by transmission fluid 22, adapter block 9, clamping plate 8, workpiece 5 and bolt 7 respectively, so that adapter block 9 can no longer move. By adjusting the displacement of bolt 7 to correspond to different sizes of workpiece 5, the function of adapting to different sizes of workpiece 5 can be realized. Since clamping plate 8 is fully in contact with the outer surface of workpiece 5, the rigid pressure from moving block 3 and chuck 4 is evenly distributed to the outer surface of workpiece 5 by the surface contact of workpiece 5. Start base 1 and drive chuck 2, moving block 3, chuck 4 and workpiece 5 to rotate at high speed. Adjust tool holder 20 to perform turning machining on the surface of workpiece 5.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A trailer axle head lightweight processing device, comprising a base (1), the top of the base (1) is provided with a baffle (19), a tool holder (20) and a tailstock (21), characterized in that, Also includes: Chuck (2), which is installed in the left side of the inner wall of the base (1), the inner wall of the chuck (2) is slidingly installed with three groups of moving blocks (3), the right side of the moving block (3) is fixedly installed with a jaw (4), a plurality of groups of the jaw (4) are clamped with a workpiece (5) arranged therebetween; The top of the inner wall of the jaw (4) is provided with a guide groove (14), the inside of the guide groove (14) is movably sleeved with a spring (15) and a connecting column (16), one end of the connecting column (16) is elastically connected with a clamping plate (8), the clamping plate (8) is adapted to abut against the outer surface of the workpiece (5), the left and right sides of the top of the inner wall of the jaw (4) are provided with a plurality of clamping grooves (11), the inner side of the clamping groove (11) is provided with a fixed cavity (10), the inside of the clamping groove (11) is sealingly connected with an adapter block (9), the bottom of the adapter block (9) is adapted to abut against the clamping plate (8), the inner cavity of the fixed cavity (10) is sealingly connected with a sealing plate (13), the inner cavity of the fixed cavity (10) is filled with a transmission liquid (22) between the sealing plate (13) and the clamping groove (11), the outer side of the jaw (4) is threadedly installed with a bolt (7), the inner end of the bolt (7) abuts against the sealing plate (13).

2. The device for lightweight processing of a trailer axle head according to claim 1, characterized in that The front of the base (1) is provided with a lead screw, the tool holder (20) is slidingly installed on the surface of the lead screw, the tailstock (21) is fixedly installed on the right side of the top of the base (1), the inside of the left side of the base (1) is provided with a motor and a speed reducer, the motor and the speed reducer are drivingly connected with the chuck (2).

3. The device for lightweight processing of a trailer axle head according to claim 2, characterized in that The side of the jaw (4) facing the clamping plate (8) is provided with a placing groove (18), the adapter block (9) and the connecting column (16) are located in the placing groove (18), the right side of the jaw (4) is fixedly installed with a dust cover (6), the dust cover (6) can completely cover the placing groove (18).

4. The device for lightweight processing of a trailer axle head according to claim 3, characterized in that The two sides of the jaw (4) close to the clamping plate (8) are both provided with a circular arc transition, the bottom of the clamping plate (8) abuts against the clamping plate (8).

5. The device for lightweight processing of a trailer axle head according to claim 4, characterized in that The two ends of the spring (15) are respectively elastically connected with the connecting column (16) and the guide groove (14), the connecting column (16) is elastically supported in the inside of the guide groove (14) through the spring (15), the spring (15) is stretched and arranged in the guide groove (14).

6. The device for lightweight processing of a trailer axle head according to claim 5, characterized in that The bottom of the adapter block (9) is provided with a circular arc transition, the height of each group of adapter blocks (9) on one side of the placing groove (18) is not equal.

7. The device for lightweight processing of a trailer axle head according to claim 6, characterized in that The outer surface of the bolt (7) is movably sleeved with a spring (12), the two ends of the sealing plate (13) are respectively elastically connected with the fixed cavity (10) and the sealing plate (13), the spring (12) is compressed and arranged in the fixed cavity (10).

8. The device for lightweight processing of a trailer axle head according to claim 7, characterized in that One end of the connecting column (16) is fixedly connected with a rubber block (17), one side of the rubber block (17) is fixedly connected with the clamping plate (8).

Images