Multifunctional combined lathe for limo production

Abstract

The invention relates to the technical field of machine manufacturing, and discloses a multifunctional combined lathe for limo production, which comprises a machine body, a three-jaw chuck is rotatably connected to the inner wall of the machine body, a square tool rest is slidably connected to the inner wall of the bottom of the machine body, and a multi-angle main shaft is slidably connected to the inner wall of the machine body. The three pressing blocks are pressed to move in the direction of the central axis of the circular tube along the first sliding grooves, so that the connecting rods are driven to rotate with the central axis of the fixing shaft as the rotating center, and the sides, away from the pressing blocks, of the connecting rods are lifted upwards to drive the ejecting blocks to expand outwards in the direction away from the central axis of the circular tube along the second sliding grooves. Therefore, rubber pads on the outer walls of the ejector blocks are tightly attached to the inner wall of the shaft sleeve needing to be machined, and the situation that when a workpiece is fixed in an outer circle direct clamping mode, continuous radial cutting force is generated when a cutter cuts the outer circle surface of the shaft sleeve, and the thin-wall shaft sleeve is prone to deformation difficult to recover is effectively prevented. And the assembling precision and the use performance of the shaft sleeve are directly influenced.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing technology, specifically to a multi-functional modular lathe for RV production. Background Technology

[0002] RVs are special vehicles that combine living and driving functions. During the manufacturing process, a large number of bushings of different specifications are required. To ensure the machining accuracy of bushings, reduce the number of clamping operations, and reduce positioning errors, multi-functional combination lathes, an integrated metal processing equipment, play a key role. They integrate multiple processing functions and can complete the entire process of machining key components such as bushings in one clamping, which greatly shortens the process changeover time and effectively reduces positioning errors during the machining process, providing strong support for the accuracy and efficiency of RV component production.

[0003] As a key component, bushings typically require high dimensional accuracy and surface roughness on their outer cylindrical surface. However, these bushings have thin walls. When the workpiece is fixed by directly clamping the outer cylindrical surface, the cutting tool will generate a continuous radial cutting force on the outer cylindrical surface of the bushing. Thin-walled bushings are prone to deformation that is difficult to recover, which directly affects the assembly accuracy and performance of the bushing. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a multi-functional combined lathe for RV production, including a machine body, a three-jaw chuck rotatably connected to the inner wall of the machine body, a square tool post slidably connected to the bottom inner wall of the machine body, and a multi-angle spindle slidably connected to the inner wall of the machine body, and further including: The fixing mechanism is slidably disposed on the inner wall of the center of the three-jaw chuck. The lifting mechanism is slidably installed on the inner wall of the fixed mechanism; The deformation mechanism is fixedly installed on the outer wall of the lifting mechanism. The process involves activating the three-jaw chuck clamping and fixing mechanism to fix the bushing to the outer wall of the deformation mechanism. After activating the three-jaw chuck, the square tool post turns the outer wall of the bushing. Then, the multi-angle spindle is activated to mill the bushing. After machining, the three-jaw chuck is loosened to a certain position, the machined bushing is removed, and a new bushing is placed for machining.

[0005] Preferably, the fixing mechanism includes: A limiting component is slidably installed on the inner center wall of the three-jaw chuck; A slidable block assembly is slidably disposed on the outer wall of the limiting assembly; The pressure block assembly is aligned with the three jaws of the three-jaw chuck, and the pressure block assembly is forced to retract inward.

[0006] Preferably, the lifting mechanism includes: Linkage assembly, the linkage assembly is rotatably mounted on the outer wall of the limit assembly; The top block assembly is slidably disposed on the outer wall of the limiting assembly on the side away from the pressure block assembly; When the pressure block assembly retracts inward, it drives the connecting rod assembly to move and causes the top block assembly to expand outward.

[0007] Preferably, the deformation mechanism includes: The elastic component is fixedly installed on the outer wall of the top block component; A blocking component is fixedly installed on the outer wall of the top block component; During the movement of the top block component, it will compress the elastic component and cause it to deform.

[0008] Preferably, the limiting component includes a circular tube slidably connected to the inner wall of the center of the three-jaw chuck, the outer wall of the circular tube having a plurality of sliding grooves I, a plurality of sliding grooves II, and a plurality of limiting grooves. There are three slides, slides 1 and 2, and three limiting grooves, all arranged in a circular array. Slides 1 and 2 are connected by the limiting grooves.

[0009] Preferably, the pressing block assembly includes a pressing block slidably connected to the inner wall of the slide groove, and the inner wall of the pressing block is provided with a moving groove. The device includes three pressure blocks, each of which is matched with one of three sliding grooves. The pressure blocks are engaged in the movable grooves of the three jaws in the three-jaw chuck.

[0010] Preferably, the linkage assembly includes several fixed shafts rotatably connected to the outer wall of the circular tube, and the outer walls of the several fixed shafts are rotatably connected to linkages, while the outer wall of the circular tube is fixedly connected to several spring pieces. The connecting rod is V-shaped, with the side of the connecting rod near the pressure block matching the moving groove. The spring is located on the side near the pressure block, and the spring is initially in a free state.

[0011] Preferably, the top block assembly includes a top block slidably connected to the inner wall of the slide groove II, and the inner walls of several top blocks are provided with the second movable groove; Among them, the three top blocks are respectively adapted to the three sliding grooves, and the side of the connecting rod near the top block is adapted to the two moving grooves.

[0012] Preferably, the elastic component includes a deformable elastic plate fixedly connected to the side of the top block away from the circular tube, and a rubber pad is fixedly connected to the outer wall of the deformable elastic plate. The outer wall of the rubber pad is provided with a plurality of water grooves. Among them, the deformable elastic plate has strong elasticity, the rubber pad material is soft rubber, and several water channels intersect to form a grid.

[0013] Preferably, the blocking assembly includes a baffle plate fixedly connected to the outer wall of the top block near the pressure block; The baffle plate is lower than the height of the machined outer surface of the bushing.

[0014] The present invention has the following beneficial effects: (1) The present invention utilizes the contraction of three jaws on a three-jaw chuck to compress three pressure blocks to move along the slide groove towards the central axis of the circular tube, thereby driving the connecting rod to rotate around the central axis of the fixed shaft. The side of the connecting rod away from the pressure block is lifted, causing the top block to expand outward along the slide groove away from the central axis of the circular tube. This makes the rubber pad on the outer wall of the top block tightly adhere to the inner wall of the bushing to be processed. Through the application of the above components, the problem of continuous radial cutting force generated by the cutting tool on the outer surface of the bushing when the workpiece is fixed by direct clamping of the outer circle is effectively prevented. Thin-walled bushings are prone to deformation that is difficult to recover, which directly affects the assembly accuracy and performance of the bushing.

[0015] (2) This invention utilizes the outward expansion characteristic of the top block of the above-mentioned device. When the area where the deformable elastic plate connects with the top block contacts the inner wall of the bushing, it is restricted by the bushing, and the top block stops expanding outward. The three-jaw chuck maintains the clamping state. At this time, the area where the top block connects with the deformable elastic plate can be in close contact, and the two sides of the rubber pad are bent due to the restriction of the deformable elastic plate. The deformable elastic plate accumulates elastic potential energy, thereby squeezing the two sides of the rubber pad to be in close contact with the inner wall of the bushing, presenting as... Figure 9 In the case of the G-type structure, the application of the above components effectively prevents the excessive curvature of the inner diameter of the bushing from making it difficult for the top block to fully fit the inner diameter of the bushing when the top block supports the bushing with a large inner diameter. This can lead to axial displacement of the bushing when it encounters cutting force in the axial direction, resulting in deviation of the machining position or even the bushing being thrown out, causing damage to the machine or personnel.

[0016] (3) This invention utilizes the feature of the rubber pad of the above-mentioned device adhering to the inner wall of the bushing. By setting a water channel on the rubber pad, when the cutting fluid reaches the edge of the rubber pad, the cutting fluid will preferentially flow in the direction of less resistance, so that the cutting fluid will flow along the water channel. Since the rubber pad is close to the inner wall of the bushing, a certain seal is formed, thus ensuring that the center position is difficult to be immersed by the cutting fluid, and ensuring that most of the contact positions between the rubber pad and the bushing remain dry. Through the application of the above components, the cutting fluid is effectively prevented from entering the gap between the rubber pad and the bushing contact surface. The friction between the rubber pad and the bushing is lubricated by the cutting fluid, and the friction is greatly reduced. When the bushing rotates with the three-jaw chuck, the bushing is subjected to circumferential torque and the relative sliding occurs.

[0017] (4) This invention utilizes the feature of the above-mentioned equipment to loosen the three-jaw chuck and remove the bushing. When processing bushings of the same batch, the previous bushing is removed. When installing the bushing to be processed, the bushing is kept on the same axis as the round tube. The bushing is moved towards the pressure block. When the bushing contacts the baffle, the movement of the bushing is stopped. The three-jaw chuck is started to squeeze the pressure block and drive the top block to expand outward and fix the bushing. Through the application of the above components, the problem of multiple bushings being difficult to keep in the same position when making bushings of the same specification, resulting in excessive processing deviation of bushings in the same batch, is effectively prevented. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A magnified structural diagram of A in the middle; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic cross-sectional view of a partial structure of the present invention; Figure 5 This is a schematic diagram of some parts of the fixing mechanism of the present invention; Figure 6 This is a cross-sectional schematic diagram of the fixing mechanism of the present invention; Figure 7 For the present invention Figure 6 A magnified structural diagram of B in the diagram; Figure 8 This is a schematic cross-sectional view of the top block assembly of the present invention; Figure 9 This is a schematic diagram of the deformation mechanism of the present invention; Figure 10 This is a schematic diagram of the initial state of the overall structure of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Fixing mechanism; 11. Limiting component; 12. Pressing block component; 13. Machine body; 14. Three-jaw chuck; 15. Square tool holder; 16. Multi-angle spindle; 111. Round tube; 112. Slide groove one; 113. Slide groove two; 114. Limiting groove; 121. Pressing block; 122. Moving groove one; 2. Lifting mechanism; 21. Connecting rod component; 22. Top block component; 211. Fixed shaft; 212. Connecting rod; 213. Spring; 221. Top block; 222. Moving groove two; 3. Deformation mechanism; 31. Elastic component; 32. Blocking component; 311. Deformation spring plate; 312. Rubber pad; 313. Flow channel; 321. Baffle. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1, please refer to Figures 1-5 This invention relates to a multi-functional modular lathe for RV production, comprising a machine body 13, a three-jaw chuck 14 rotatably connected to the inner wall of the machine body 13, a square tool post 15 slidably connected to the bottom inner wall of the machine body 13, and a multi-angle spindle 16 slidably connected to the inner wall of the machine body 13, and further comprising: Fixing mechanism 1 is slidably disposed on the inner wall of the center of the three-jaw chuck 14; Lifting mechanism 2 is slidably installed on the inner wall of fixed mechanism 1; Deformation mechanism 3 is fixedly installed on the outer wall of lifting mechanism 2; The process involves activating the three-jaw chuck 14 to clamp and fix the bushing to the outer wall of the deformation mechanism 3. After activating the three-jaw chuck 14, the square tool post 15 turns the outer wall of the bushing. Then, the multi-angle spindle 16 is activated to mill the bushing. After the machining is completed, the three-jaw chuck 14 is released to a certain position, the machined bushing is removed, and a new bushing is placed for machining.

[0023] Fixed mechanism 1 includes: Limiting component 11 is slidably installed on the inner center wall of the three-jaw chuck 14; The pressing block assembly 12 is slidably disposed on the outer wall of the limiting assembly 11; The pressure block assembly 12 is aligned with the three jaws of the three-jaw chuck 14, and the pressure block assembly 12 is pressed inward to retract.

[0024] Lifting mechanism 2 includes: Linkage assembly 21 is rotatably mounted on the outer wall of limit assembly 11; Top block assembly 22 is slidably disposed on the outer wall of the limiting assembly 11 on the side away from the pressing block assembly 12; When the pressure block assembly 12 retracts inward, it drives the connecting rod assembly 21 to move and drives the top block assembly 22 to expand outward.

[0025] The deformation mechanism 3 includes: Elastic component 31 is fixedly installed on the outer wall of top block component 22; The blocking component 32 is fixedly installed on the outer wall of the top block component 22; During the movement of the top block component 22, it will compress the elastic component 31 and cause it to deform.

[0026] Example 2, please refer to Figures 3-10 The present invention is a multi-functional combination lathe for RV production. Based on Example 1, the limiting component 11 includes a circular tube 111 that is slidably connected to the inner wall of the center of the three-jaw chuck 14. The outer wall of the circular tube 111 is provided with a plurality of sliding grooves 112, a plurality of sliding grooves 113, and a plurality of limiting grooves 114. There are three slides 112 and 113 and three limiting grooves 114, all arranged in a circular array. Slides 112 and 113 are connected by limiting grooves 114, which are elongated.

[0027] The pressure block assembly 12 includes a pressure block 121 that is slidably connected to the inner wall of the slide groove 112, and the inner wall of the pressure block 121 is provided with a moving groove 122. Among them, there are three pressure blocks 121, and the three pressure blocks 121 are respectively adapted to the three sliding grooves 112. The pressure blocks 121 are inserted into the movable grooves of the three jaws in the three-jaw chuck 14.

[0028] The linkage assembly 21 includes several fixed shafts 211 rotatably connected to the outer wall of the circular tube 111, and a linkage 212 rotatably connected to the outer wall of each of the fixed shafts 211. Several spring pieces 213 are fixedly connected to the outer wall of the circular tube 111. Among them, the connecting rod 212 is V-shaped, and the side of the connecting rod 212 near the pressure block 121 is adapted to the moving groove 122. The spring piece 213 is located on the side near the pressure block 121, and the spring piece 213 is initially in a free state. The fixed shaft 211 passes through the corresponding limiting groove 114, the connecting rod 212 is located inside the limiting groove 114, the spring piece 213 is located on the inner wall of the limiting groove 114, and the side of the spring piece 213 away from the connecting rod 212 is fixedly connected to the round tube 111.

[0029] The top block assembly 22 includes a top block 221 that is slidably connected to the inner wall of the slide groove 2 113, and the inner walls of several top blocks 221 are provided with a moving groove 222. Among them, the three top blocks 221 are respectively adapted to the three sliding grooves 113, and the side of the connecting rod 212 near the top block 221 is adapted to the moving groove 222. When the operator places the round tube 111 at the center of the three-jaw chuck 14, the pressure block 121 is placed along the sliding grooves of the three jaws of the three-jaw chuck 14. At this time, the rotation of the round tube 111 relative to the three-jaw chuck 14 is restricted. When the three-jaw chuck 14 is activated, the three jaws on the three-jaw chuck 14 retract, thereby pressing the three pressure blocks 121 to move along the sliding groove 112 towards the central axis of the round tube 111. This causes the connecting rod 212 to rotate around the central axis of the fixed shaft 211. The side of the connecting rod 212 closest to the pressure block 121 moves towards the spring piece 213. As the direction of movement increases, connecting rod 212 slides within moving groove 122, and spring 213 transitions from a free state to a compressed state. The side of connecting rod 212 away from pressure block 121 rises, and the side of connecting rod 212 away from pressure block 121 slides on moving groove 222, causing top block 221 to expand outward along sliding groove 213 in a direction away from the central axis of circular tube 111. This causes the rubber pad 312 on the outer wall of top block 221 to fit tightly against the inner wall of the bushing to be processed. When pressure block 121 retracts inward, it causes connecting rod 212 to rotate, and connecting rod 212 forms a V-shape. The connecting rod 212 generates a lever effect with the fixed shaft 211 as the fulcrum, forcing the pressure block 121 to contract inward and the force that drives the top block 221 to expand outward. After processing is completed, the jaws of the three-jaw chuck 14 are released by a certain distance, and the constraint on the pressure block 121 is reduced. At this time, the spring 213 changes from the compressed state to the free state, driving the connecting rod 212 to lift the side close to the pressure block 121 upward. The pressure block 121 moves with the jaws of the three-jaw chuck 14 and expands outward, thereby causing the top block 221 to contract inward. The rubber pad 312 moves away from the inner wall of the bushing, thereby causing the bushing to lose support. The processed bushing is removed and the bushing to be processed is installed.

[0030] The elastic component 31 includes a deformable elastic plate 311 fixedly connected to the top block 221 on the side away from the round tube 111. A rubber pad 312 is fixedly connected to the outer wall of the deformable elastic plate 311, and a plurality of water grooves 313 are opened on the outer wall of the rubber pad 312. Among them, the deformable elastic plate 311 has strong elasticity, the rubber pad 312 is made of soft rubber, and several water channels 313 intersect to form a grid. When the rubber pad 312 is not in contact with the inner wall of the bushing, the rubber pad 312 appears as follows: Figure 10In the state of K, the deformable spring plate 311 remains horizontal. When the rubber pad 312 contacts the inner wall of the bushing, both sides of the rubber pad 312 first contact the inner wall of the bushing. As the top block 221 continues to expand outward, the two sides of the deformable spring plate 311 are restricted by the inner wall of the bushing and bend towards the central axis of the circular tube 111. When the area where the deformable spring plate 311 and the top block 221 are connected contacts the inner wall of the bushing, the top block 221 stops expanding outward due to the restriction of the bushing, and the three-jaw chuck 14 remains in a clamping state. At this time, the area where the top block 221 and the deformable spring plate 311 are connected can be in close contact, and the two sides of the rubber pad 312 bend due to the restriction of the deformable spring plate 311. The deformable spring plate 311 accumulates elastic potential energy, thereby squeezing the two sides of the rubber pad 312 into close contact with the inner wall of the bushing, presenting as... Figure 9 The status of G in China.

[0031] The blocking assembly 32 includes a baffle 321 fixedly connected to the outer wall of the top block 221 near the pressure block 121; Among them, the baffle 321 is lower than the height of the machined outer surface of the bushing; When processing the same batch of bushings, remove the previous bushing. When installing the bushing to be processed, keep the bushing on the same axis as the round tube 111. Move the bushing towards the pressure block 121. When the bushing contacts the baffle 321, stop the bushing movement. Start the three-jaw chuck 14 to squeeze the pressure block 121 and drive the top block 221 to expand outward, thus fixing the bushing.

[0032] One specific application of this embodiment is as follows: When in use, the operator prepares the machining program, starts the three-jaw chuck 14 to clamp and fix the fixing mechanism 1, and fixes the bushing to the outer wall of the deformation mechanism 3. After starting the three-jaw chuck 14, the square tool post 15 turns the outer wall of the bushing, and then starts the multi-angle spindle 16 to mill the bushing. After the machining is completed, the three-jaw chuck 14 is released to a certain position, the machined bushing is removed, and a new bushing is placed for machining.

[0033] When the operator places the round tube 111 at the center of the three-jaw chuck 14, the pressure block 121 is placed along the sliding grooves of the three jaws of the three-jaw chuck 14. At this time, the rotation of the round tube 111 relative to the three-jaw chuck 14 is restricted. When the three-jaw chuck 14 is activated, the three jaws on the three-jaw chuck 14 retract, thereby pressing the three pressure blocks 121 to move along the sliding groove 112 towards the central axis of the round tube 111. This causes the connecting rod 212 to rotate around the central axis of the fixed shaft 211. The side of the connecting rod 212 closest to the pressure block 121 moves towards the spring piece 213. As the direction of movement increases, connecting rod 212 slides within moving groove 122, and spring 213 transitions from a free state to a compressed state. The side of connecting rod 212 away from pressure block 121 rises, and the side of connecting rod 212 away from pressure block 121 slides on moving groove 222, causing top block 221 to expand outward along sliding groove 213 in a direction away from the central axis of circular tube 111. This causes the rubber pad 312 on the outer wall of top block 221 to fit tightly against the inner wall of the bushing to be processed. When pressure block 121 retracts inward, it causes connecting rod 212 to rotate, and connecting rod 212 forms a V-shape. The connecting rod 212, with the fixed shaft 211 as the fulcrum, generates a lever effect, forcing the pressure block 121 to contract inward, which is similar in magnitude to the force that drives the top block 221 to expand outward. After processing, the jaws of the three-jaw chuck 14 are released by a certain distance, reducing the constraint on the pressure block 121. At this time, the spring 213 changes from a compressed state to a free state, causing the connecting rod 212 to lift upward on the side closest to the pressure block 121. The pressure block 121 moves with the jaws of the three-jaw chuck 14, expanding outward, thereby causing the top block 221 to contract inward, and the rubber pad 312 to move away from the shaft. The inner wall of the sleeve is closed, thus the sleeve loses its support. The machined sleeve is removed, and the sleeve to be machined is installed. When dealing with sleeves with different inner diameters, the distance between the jaws of the three-jaw chuck 14 can be directly controlled, as can the outward expansion distance of the top block 221 and the clamping force. Through the application of the above components, it is effectively prevented that when the workpiece is fixed by directly clamping the outer circle, the tool will generate a continuous radial cutting force when cutting the outer circle surface of the sleeve. Thin-walled sleeves are prone to deformation that is difficult to recover, which directly affects the assembly accuracy and performance of the sleeve.

[0034] Taking advantage of the outward expansion of the top block 221 of the aforementioned device, when the rubber pad 312 is not in contact with the inner wall of the bushing, the rubber pad 312 presents as follows: Figure 10In the state of K, the deformable spring plate 311 remains horizontal. When the rubber pad 312 contacts the inner wall of the bushing, both sides of the rubber pad 312 first contact the inner wall of the bushing. As the top block 221 continues to expand outward, the two sides of the deformable spring plate 311 are restricted by the inner wall of the bushing and bend towards the central axis of the circular tube 111. When the area where the deformable spring plate 311 and the top block 221 are connected contacts the inner wall of the bushing, the top block 221 stops expanding outward due to the restriction of the bushing, and the three-jaw chuck 14 remains in a clamping state. At this time, the area where the top block 221 and the deformable spring plate 311 are connected can be in close contact, and the two sides of the rubber pad 312 bend due to the restriction of the deformable spring plate 311. The deformable spring plate 311 accumulates elastic potential energy, thereby squeezing the two sides of the rubber pad 312 into close contact with the inner wall of the bushing, presenting as... Figure 9 In the case of a bushing with a large diameter, the curvature of the inner wall of the bushing is also large. The top of the top block 221 cannot fully fit the inner wall of the bushing, resulting in an excessively small contact point between the top block 221 and the bushing. The application of the above components effectively prevents the top block 221 from being unable to fully fit the inner diameter of the bushing when it supports a bushing with a large inner diameter. This would cause the bushing to experience axial displacement when it encounters cutting force in the axial direction, resulting in deviations in the machining position or even the bushing being thrown out, leading to machine damage or personal injury.

[0035] Taking advantage of the characteristic of the rubber pad 312 adhering to the inner wall of the bushing, after the rubber pad 312 is fully attached to the inner wall of the bushing, a large amount of cutting fluid is used during the machining process for chip removal and cooling. The cutting fluid will enter the contact surface between the rubber pad 312 and the inner wall of the bushing. Since the cutting fluid itself contains lubricating components, it will form a very thin but complete lubricating film on the contact surface after penetrating, significantly reducing the coefficient of friction of the rubber pad 312. By setting a water channel 313 on the rubber pad 312, when the cutting fluid reaches the edge of the rubber pad 312, the cutting fluid will preferentially flow towards the direction of least resistance. The cutting fluid flows along the water channel 313. Because the rubber pad 312 is tightly attached to the inner wall of the bushing, a certain seal is formed, which ensures that the center position is difficult to be soaked by cutting fluid and that most of the contact area between the rubber pad 312 and the bushing remains dry. Through the application of the above components, the cutting fluid is effectively prevented from entering the gap between the rubber pad 312 and the bushing. The friction between the rubber pad 312 and the bushing is lubricated by the cutting fluid, and the friction is greatly reduced. When the bushing rotates with the three-jaw chuck 14, the bushing is subjected to circumferential torque and the problem of relative sliding occurs.

[0036] By utilizing the feature of the aforementioned equipment to loosen the three-jaw chuck 14 and remove the bushing, when processing bushings of the same batch, the previous bushing is removed. When installing the bushing to be processed, the bushing is kept on the same axis as the round tube 111. The bushing is moved towards the pressure block 121. When the bushing contacts the baffle 321, the movement of the bushing is stopped. The three-jaw chuck 14 is activated to squeeze the pressure block 121, causing the top block 221 to expand outward and fix the bushing. Through the application of the above components, the problem of difficulty in maintaining uniform positioning of multiple bushings when manufacturing bushings of the same specification, resulting in excessive processing deviation of bushings in the same batch, is effectively prevented.

[0037] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A multi-functional modular lathe for RV production, comprising a machine body (13), wherein a three-jaw chuck (14) is rotatably connected to the inner wall of the machine body (13), a square tool post (15) is slidably connected to the bottom inner wall of the machine body (13), and a multi-angle spindle (16) is slidably connected to the inner wall of the machine body (13), characterized in that, Also includes: The fixing mechanism (1) is slidably disposed on the inner wall of the center of the three-jaw chuck (14); A lifting mechanism (2) is slidably installed on the inner wall of the fixing mechanism (1); Deformation mechanism (3), which is fixedly installed on the outer wall of lifting mechanism (2); The three-jaw chuck (14) is activated to clamp and fix the bushing (1), which is then fixed on the outer wall of the deformation mechanism (3). After the three-jaw chuck (14) is activated, the square tool post (15) turns the outer wall of the bushing. Then, the multi-angle spindle (16) is activated to mill the bushing. After the machining is completed, the three-jaw chuck (14) is released at a certain position, the machined bushing is removed, and a new bushing is placed for machining.

2. The multi-functional combined lathe for RV production according to claim 1, characterized in that: The fixing mechanism (1) includes: Limiting component (11), which is slidably mounted on the inner wall of the center of the three-jaw chuck (14); A pressure block assembly (12) is slidably disposed on the outer wall of the limiting assembly (11); The pressing block assembly (12) is aligned with the three jaws of the three-jaw chuck (14), and the pressing block assembly (12) is pressed inward to retract.

3. The multi-functional combined lathe for RV production according to claim 2, characterized in that: The lifting mechanism (2) includes: Linkage assembly (21), which is rotatably mounted on the outer wall of limiting assembly (11); Top block assembly (22), which is slidably disposed on the outer wall of the limiting assembly (11) on the side away from the pressure block assembly (12); When the pressure block assembly (12) contracts inward, it drives the connecting rod assembly (21) to move and drives the top block assembly (22) to expand outward.

4. The multi-functional combined lathe for RV production according to claim 3, characterized in that: The deformation mechanism (3) includes: An elastic component (31) is fixedly installed on the outer wall of the top block component (22); A blocking component (32) is fixedly disposed on the outer wall of the top block component (22); During the movement of the top block component (22), it will compress the elastic component (31) and cause it to deform.

5. A multi-functional combined lathe for RV production according to claim 4, characterized in that: The limiting component (11) includes a circular tube (111) slidably connected to the inner wall of the center of the three-jaw chuck (14). The outer wall of the circular tube (111) is provided with a plurality of sliding grooves (112), a plurality of sliding grooves (113), and a plurality of limiting grooves (114). Among them, there are three slides (112), slides (113) and limiting grooves (114), and they are arranged in a circular array. Slides (112) and slides (113) are connected through limiting grooves (114).

6. A multi-functional modular lathe for RV production according to claim 5, characterized in that: The pressing block assembly (12) includes a pressing block (121) slidably connected to the inner wall of the slide groove (112), and the inner wall of the pressing block (121) is provided with a moving groove (122). Among them, there are three pressure blocks (121), and the three pressure blocks (121) are respectively adapted to the three sliding grooves (112). The pressure blocks (121) are inserted into the movable grooves of the three jaws in the three-jaw chuck (14).

7. A multi-functional combined lathe for RV production according to claim 6, characterized in that: The linkage assembly (21) includes a plurality of fixed shafts (211) rotatably connected to the outer wall of the circular tube (111), and a linkage (212) is rotatably connected to the outer wall of each of the fixed shafts (211), and a plurality of spring pieces (213) are fixedly connected to the outer wall of the circular tube (111). Among them, the connecting rod (212) is V-shaped, and the side of the connecting rod (212) near the pressure block (121) is adapted to the moving groove (122). The spring piece (213) is located on the side near the pressure block (121), and the spring piece (213) is initially in a free state.

8. A multi-functional combined lathe for RV production according to claim 7, characterized in that: The top block assembly (22) includes a top block (221) slidably connected to the inner wall of the slide groove (113), and the inner walls of several top blocks (221) are provided with a movable groove (222). Among them, the three top blocks (221) are respectively adapted to the three sliding grooves (113), and the side of the connecting rod (212) near the top block (221) is adapted to the moving groove (222).

9. A multi-functional combined lathe for RV production according to claim 8, characterized in that: The elastic component (31) includes a deformable elastic plate (311) fixedly connected to the top block (221) on the side away from the round tube (111). A rubber pad (312) is fixedly connected to the outer wall of the deformable elastic plate (311), and a plurality of water grooves (313) are opened on the outer wall of the rubber pad (312). Among them, the deformable elastic plate (311) has strong elasticity, the rubber pad (312) is made of soft rubber, and several water channels (313) intersect to form a grid.

10. A multi-functional combined lathe for RV production according to claim 8, characterized in that: The blocking assembly (32) includes a baffle (321) fixedly connected to the outer wall of the top block (221) near the pressure block (121); Among them, the baffle (321) is lower than the height of the machined outer surface of the bushing.

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