Rotary clamping device for laser cladding of shaft parts

Abstract

The invention discloses a rotary clamping device for laser cladding of shaft parts, and belongs to the field of laser cladding clamping, the clamping device comprises a base, a fixed seat mounted at the left end of the base, a movable seat arranged at the right end of the base and a clamping mechanism; the clamping mechanism comprises a mounting cylinder rotationally inserted in the fixed seat and the movable seat, an insertion opening is formed in the inner side of the mounting cylinder, a plurality of clamping claws are annularly arranged on the side, close to the insertion opening, in the mounting cylinder at equal intervals, and a conical cylinder is arranged on the side, away from the insertion opening, in the mounting cylinder; supporting seats are fixedly mounted at the outer side ends of the fixed seats and the movable seats, driving parts are fixedly mounted on the supporting seats, push rods are fixedly connected to the output ends of the driving parts, and the ends, away from the driving parts, of the push rods penetrate through the mounting cylinders and are fixedly connected with the conical cylinders. Clamping and loosening actions can be completed without manually and repeatedly rotating the bolt, the conical cylinder can be directly driven to move through power output of the driving piece, then the clamping claws are pushed to be rapidly and radially opened and closed, and one-key type clamping and disassembling of the shaft rod are achieved.

Description

Technical Field

[0001] This application relates to the field of laser cladding clamping technology, specifically a rotary clamping device for laser cladding of shaft parts. Background Technology

[0002] Laser cladding, also known as laser bonding or laser coating, is a novel surface modification technology. It involves adding a cladding material to the surface of a substrate and then using a high-energy-density laser beam to fuse the material with a thin layer on the substrate surface, forming a metallurgically bonded cladding layer. Therefore, during the processing of shaft parts, laser cladding can optimize the surface properties of these parts.

[0003] In laser cladding, the clamping tool of the cladding machine is one of the core components ensuring processing accuracy and efficiency, and its performance directly affects the forming quality and processing stability of the cladding layer. Currently, most laser cladding machines on the market use a three-jaw chuck with bolt fastening. This type of clamping structure requires multiple rotations of the bolts to adjust the jaw opening when clamping the workpiece, making the operation cumbersome. Similarly, when disassembling the workpiece after processing, the bolts need to be repeatedly tightened, resulting in excessive auxiliary time for clamping and disassembly, which seriously restricts the overall processing efficiency of laser cladding. Furthermore, using a wrench to tighten the bolts can easily lead to workers forgetting to remove the wrench, posing a safety hazard.

[0004] Therefore, this application provides a rotary clamping device for laser cladding of shaft parts to solve the above problems. Summary of the Invention

[0005] This application provides a rotary clamping device for laser cladding of shaft parts, aiming to solve the problems mentioned in the background art, such as the cumbersome disassembly and assembly of existing laser cladding machine clamping tools, poor clamping stability and easy displacement of cylindrical shaft parts, which leads to low processing efficiency and accuracy.

[0006] To achieve the above objectives, this application provides the following technical solution: a rotary clamping device for laser cladding of shaft parts, comprising a base, a fixed seat mounted on the left end of the base, a movable seat disposed on the right end of the base, and a clamping mechanism; the clamping mechanism includes a mounting cylinder rotatably inserted and mounted on the fixed seat and the movable seat, an insertion port being provided on the inner side of the mounting cylinder, and a plurality of clamping claws being circumferentially and equidistantly arranged on the side of the mounting cylinder near the insertion port, and the clamping claws being movable in the radial direction of the insertion port; a conical cylinder being disposed on the side of the mounting cylinder away from the insertion port, and the large diameter of the conical cylinder being sleeved on the outer side of the plurality of clamping claws; wherein, the end of the clamping claw away from the insertion port is inclined, and the inclined surface of the clamping claw is consistent with the inclined arc of the inner wall of the conical cylinder; a support seat is fixedly mounted on the outer ends of the fixed seat and the movable seat, a driving component is fixedly mounted on the support seat, a push rod is fixedly connected to the output end of the driving component, and the end of the push rod away from the driving component passes through the mounting cylinder and is fixedly connected to the conical cylinder. The clamping mechanism abandons the traditional three-jaw chuck and rotating bolt fixing method. It adopts a drive structure that links the drive component, push rod and conical cylinder. The clamping and loosening actions can be completed without manual repeated rotation of the bolt. The power output of the drive component can directly drive the conical cylinder to move, thereby pushing the clamping jaws to open and close radially quickly, realizing one-click clamping and disassembly of the shaft. This effectively reduces the number of operation steps in the assembly and disassembly process, reduces the proportion of auxiliary time, and improves the overall processing efficiency of laser cladding.

[0007] Preferably, to improve clamping force, the clamping claws are provided with multiple grid-like anti-slip patterns along the axial direction near the insertion port. This enhances the friction between the clamping claws and the outer wall of the shaft, further improving clamping stability and preventing the shaft from sliding or shifting during processing.

[0008] Preferably, to ensure the stability of the contact between the cone and the clamping claw: a guide rod is fixedly connected to the inclined surface of the clamping claw, and a guide groove for fitting the guide rod is formed on the inner wall of the cone. This ensures the stability of the contact between the cone and the clamping claw, guarantees the precise and smooth movement of the cone driving the clamping claw, and avoids misalignment between the two.

[0009] Preferably, to prevent the guide rod from disengaging from the guide groove, the outer wall shape of the guide rod and the inner wall shape of the guide groove are both T-shaped. This prevents the guide rod from disengaging from the guide groove, ensures the reliability of the transmission between the cone and the clamping jaws, and avoids clamping failure.

[0010] Preferably, to prevent the clamping claw from rotating inside the mounting cylinder: a radial groove is provided on the side of the mounting cylinder near the insertion port, and a guide block for fixed connection with the clamping claw is slidably disposed in the radial groove. This prevents the clamping claw from rotating inside the mounting cylinder, ensures that the clamping claw always moves stably in the radial direction, and improves clamping accuracy.

[0011] Preferably, to facilitate the reset of the clamping jaws: a fixing rod is slidably inserted into the guide block through a through hole, both ends of the fixing rod are fixedly connected to the radial groove, and a spring is sleeved on the fixing rod, the spring being located between the end of the guide block near the insertion port and the radial groove. This facilitates quick reset of the clamping jaws, makes it easier to disassemble and replace the shaft, shortens clamping auxiliary time, and improves processing efficiency.

[0012] Preferably, to facilitate the rotation of the mounting cylinder located on the fixed base: a drive motor is fixedly mounted on the support base of the fixed base, and a through hole is opened on the output shaft of the drive motor, through which the output shaft of the drive motor is sleeved on the push rod. This facilitates the rotation of the mounting cylinder on the fixed base, meets the rotary processing requirements of laser cladding of shaft parts, and does not affect the axial movement of the push rod, realizing that the rotary processing and clamping actions do not interfere with each other.

[0013] Preferably, to facilitate the movement of the movable seat towards the fixed seat, the base is provided with an adjustment mechanism. The adjustment mechanism includes a guide rail fixedly mounted on the base, a slider slidably mounted on the guide rail, an adjustment groove formed within the guide rail, a screw rotatably mounted within the adjustment groove, and a nut threaded onto the screw and fixedly connected to the slider. One end of the screw passes through the guide rail and is fixedly connected to a handle. The movable seat is fixedly mounted on the slider. This facilitates the movement of the movable seat towards the fixed seat, enabling flexible adjustment of the distance between the movable seat and the fixed seat, adapting to the clamping requirements of shaft parts of different lengths, and improving the versatility of the device.

[0014] This application's clamping mechanism abandons the traditional three-jaw chuck rotation bolt fixing method and adopts a drive structure that links the drive component, push rod and conical cylinder. The clamping and loosening actions can be completed without manual repeated rotation of the bolt. The power output of the drive component can directly drive the conical cylinder to move, thereby pushing the clamping jaws to open and close radially quickly, realizing one-click clamping and disassembly of the shaft. This effectively reduces the number of operation steps in the assembly and disassembly process, reduces the proportion of auxiliary time, and improves the overall processing efficiency of laser cladding.

[0015] This application, through the design of an adjustment mechanism, facilitates the movement of the movable seat towards the fixed seat, enabling flexible adjustment of the distance between the movable seat and the fixed seat, adapting to the clamping requirements of shaft parts of different lengths, and improving the versatility of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a rotary clamping device for laser cladding of shaft parts; Figure 2 This is a structural cross-sectional view of the clamping mechanism; Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a schematic diagram of the connection between the cone and the clamping jaws. Figure 5 This is a schematic diagram of the gripper structure; Figure 6 This is a schematic diagram of the adjustment mechanism.

[0017] In the picture: 1. Base; 2. Fixed seat; 3. Movable seat; 4. Clamping mechanism; 41. Mounting cylinder; 411. Radial groove; 412. Fixed rod; 413. Spring; 42. Insert; 43. Clamping claw; 431. Guide rod; 432. Guide block; 44. Conical cylinder; 441. Guide groove; 45. Support seat; 46. Driving component; 47. Push rod; 5. Drive motor; 6. Adjusting mechanism; 61. Guide rail; 62. Slider; 63. Adjusting groove; 64. Screw; 65. Nut; 66. Handle. 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 a part of the embodiments of this application, and not all of the 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] This embodiment provides a rotary clamping device for laser cladding of shaft parts, such as... Figure 1-6As shown, the clamping device includes a base 1, a fixed seat 2 mounted on the left end of the base 1, a movable seat 3 located on the right end of the base 1, and a clamping mechanism 4. The clamping mechanism 4 includes a mounting cylinder 41 rotatably mounted on the fixed seat 2 and the movable seat 3. An insertion port 42 is provided on the inner side of the mounting cylinder 41. Multiple clamping claws 43 are equidistantly arranged in a ring on the side of the mounting cylinder 41 near the insertion port 42, and the clamping claws 43 can move radially along the insertion port 42. A conical [feature / feature] is provided on the side of the mounting cylinder 41 away from the insertion port 42. The cone 44 has a large diameter sleeve on the outside of multiple clamping claws 43; the end of the clamping claw 43 away from the insertion port 42 is inclined, and the inclined surface of the clamping claw 43 is consistent with the inclined arc of the inner wall of the cone 44; a support base 45 is fixedly installed on the outer end of the fixed base 2 and the movable base 3, and a driving component 46 is fixedly installed on the support base 45. A push rod 47 is fixedly connected to the output end of the driving component 46, and the end of the push rod 47 away from the driving component 46 passes through the mounting cylinder 41 and is fixedly connected to the cone 44. The clamping mechanism 4 abandons the traditional three-jaw chuck and bolt fixing method, and adopts a drive structure that links the drive component 46, push rod 47 and tapered cylinder 44. The clamping and loosening actions can be completed without manual repeated rotation of the bolt. The power output of the drive component 46 can directly drive the tapered cylinder 44 to move, thereby pushing the clamping claws 43 to quickly open and close radially, realizing one-click clamping and disassembly of the shaft, effectively reducing the number of operation steps in the assembly and disassembly process, reducing the proportion of auxiliary time, and improving the overall processing efficiency of laser cladding. The drive component 46 drives the push rod 47 to move the tapered cylinder 44. By utilizing the matching contact between the inner wall of the tapered cylinder 44 and the inclined surface of the clamping claws 43, multiple annularly distributed clamping claws 43 are pushed to move synchronously towards the axis along the radial direction of the insertion port 42, thereby quickly clamping the shaft inserted into the insertion port 42. The design of multiple clamping claws 43 increases the contact area with the shaft.

[0020] To improve clamping force, the clamping jaws 43 are provided with multiple grid-like anti-slip patterns along the axial direction near the insertion port 42. This enhances the friction between the clamping jaws 43 and the outer wall of the shaft, further improving clamping stability and preventing the shaft from sliding or shifting during machining. By increasing the contact friction between the clamping jaws 43 and the outer wall of the shaft, relative sliding of the shaft during clamping or rotational machining is avoided.

[0021] To ensure the stability of the contact between the cone 44 and the clamping jaw 43, a guide rod 431 is fixedly connected to the inclined surface of the clamping jaw 43, and a guide groove 441 is provided on the inner wall of the cone 44 to fit the guide rod 431. This ensures the stability of the contact between the cone 44 and the clamping jaw 43, guarantees the precise and smooth movement of the cone 44 driving the clamping jaw 43, and avoids misalignment between the two. When the cone 44 moves, the guide rod 431 slides along the guide groove 441, guiding and limiting the relative movement of the cone 44 and the clamping jaw 43.

[0022] To prevent the guide rod 431 from disengaging from the guide groove 441, the outer wall shape of the guide rod 431 and the inner wall shape of the guide groove 441 are both T-shaped. This prevents the guide rod 431 from disengaging from the guide groove 441, ensuring the reliability of the transmission between the cone cylinder 44 and the clamping jaw 43, and avoiding clamping failure. The T-shaped structure limits the movement trajectory of the guide rod 431 within the guide groove 441, preventing the guide rod 431 from disengaging from the guide groove 441 during the movement of the cone cylinder 44.

[0023] To prevent the clamping claw 43 from rotating within the mounting cylinder 41, a radial groove 411 is provided on the side of the mounting cylinder 41 near the insertion port 42. A guide block 432 for fixed connection with the clamping claw 43 is slidably disposed within the radial groove 411. This prevents the clamping claw 43 from rotating within the mounting cylinder 41, ensuring that the clamping claw 43 always moves stably in the radial direction, thus improving clamping accuracy. The limiting effect of the radial groove 411 on the guide block 432 prevents the clamping claw 43 from rotating as it moves with the tapered cylinder 44.

[0024] To facilitate the reset of the clamping jaw 43, a fixing rod 412 is slidably inserted into the guide block 432 through a through hole. Both ends of the fixing rod 412 are fixedly connected to the radial groove 411. A spring 413 is sleeved on the fixing rod 412, located between the end of the guide block 432 near the insertion port 42 and the radial groove 411. This facilitates the quick reset of the clamping jaw 43, making it easier to disassemble and replace the shaft, shortening clamping auxiliary time, and improving processing efficiency. When the driving component 46 drives the tapered cylinder 44 to move in the opposite direction, the elastic rebound force of the spring 413 pushes the guide block 432, causing the clamping jaw 43 to move and reset along the radial groove 411 in a direction away from the axis.

[0025] To facilitate the rotation of the mounting cylinder 41 located on the fixed base 2, a drive motor 5 is fixedly mounted on the support base 45 of the fixed base 2. The output shaft of the drive motor 5 has a through hole, through which it is sleeved onto the push rod 47. This facilitates the rotation of the mounting cylinder 41 on the fixed base 2, meeting the rotary processing requirements of laser cladding on shaft parts, while not affecting the axial movement of the push rod 47, thus ensuring that rotary processing and clamping actions do not interfere with each other. When the drive motor 5 is working, it drives the output shaft to rotate, which in turn drives the mounting cylinder 41 to rotate. The push rod 47 can move axially along the through hole of the output shaft without affecting the clamping action of the clamping mechanism 4.

[0026] To facilitate the movement of the movable seat 3 towards the fixed seat 2, an adjustment mechanism 6 is provided on the base 1. The adjustment mechanism 6 includes a guide rail 61 fixedly mounted on the base 1, a slider 62 slidably sleeved on the guide rail 61, an adjustment groove 63 formed within the guide rail 61, a screw 64 rotatably mounted within the adjustment groove 63, and a nut 65 threaded onto the screw 64 and fixedly connected to the slider 62. One end of the screw 64 passes through the guide rail 61 and is fixedly connected to a handle 66. The movable seat 3 is fixedly mounted on the slider 62. This facilitates the movement of the movable seat 3 towards the fixed seat 2, allowing for flexible adjustment of the distance between the movable seat 3 and the fixed seat 2, adapting to the clamping requirements of shaft parts of different lengths, and improving the versatility of the device. Rotating the handle 66 at one end of the screw 64 causes the screw 64 to rotate. The rotation of the screw 64 causes the nut 65 to move along the screw 64, which in turn causes the slider 62 to slide along the guide rail 61, thus adjusting the position of the movable seat 3.

[0027] The wiring diagram of the drive motor 5 in this application is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the drive motor 5 will not be explained in detail.

[0028] The control method of this application is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0029] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0030] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.

[0031] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A rotary clamping device for laser cladding of shaft parts, characterized in that: It includes a base (1), a fixed seat (2) installed on the left end of the base (1), a movable seat (3) disposed on the right end of the base (1), and a clamping mechanism (4); The clamping mechanism (4) includes a mounting cylinder (41) that is rotatably inserted and mounted on the fixed base (2) and the movable base (3). The mounting cylinder (41) has an insertion port (42) on its inner side. Multiple clamping claws (43) are arranged circumferentially and equidistantly on the side of the mounting cylinder (41) near the insertion port (42). The clamping claws (43) can move along the radial direction of the insertion port (42). A cone cylinder (44) is arranged on the side of the mounting cylinder (41) away from the insertion port (42). The large diameter of the cone cylinder (44) is sleeved on the outside of the multiple clamping claws (43). The clamping claw (43) is inclined at one end away from the insertion port (42), and the inclined surface of the clamping claw (43) is consistent with the inclined arc of the inner wall of the cone (44). A support base (45) is fixedly installed on the outer ends of the fixed base (2) and the movable base (3). A drive component (46) is fixedly installed on the support base (45). A push rod (47) is fixedly connected to the output end of the drive component (46). The end of the push rod (47) away from the drive component (46) passes through the mounting cylinder (41) and is fixedly connected to the cone cylinder (44).

2. The rotary clamping device for laser cladding of shaft parts according to claim 1, characterized in that: The clamping claw (43) has multiple grid-like anti-slip patterns along its axis near the insertion port (42).

3. The rotary clamping device for laser cladding of shaft parts according to claim 1, characterized in that: A guide rod (431) is fixedly connected to the inclined surface of the clamping claw (43), and a guide groove (441) is provided on the inner wall of the cone (44) for matching the guide rod (431).

4. The rotary clamping device for laser cladding of shaft parts according to claim 3, characterized in that: The outer wall shape of the guide rod (431) and the inner wall shape of the guide groove (441) are both T-shaped.

5. The rotary clamping device for laser cladding of shaft parts according to claim 1, characterized in that: A radial groove (411) is provided on the side of the mounting cylinder (41) near the insertion port (42), and a guide block (432) for fixed connection with the clamping claw (43) is slidably provided in the radial groove (411).

6. The rotary clamping device for laser cladding of shaft parts according to claim 5, characterized in that: A fixing rod (412) is slidably inserted into the guide block (432) through a through hole. The two ends of the fixing rod (412) are fixedly connected to the radial groove (411). A spring (413) is sleeved on the fixing rod (412). The spring (413) is located between the end of the guide block (432) near the insertion port (42) and the radial groove (411).

7. The rotary clamping device for laser cladding of shaft parts according to claim 1, characterized in that: A drive motor (5) is fixedly installed on the support base (45) on the fixed base (2). The output shaft of the drive motor (5) has a through hole, and the output shaft of the drive motor (5) is sleeved on the push rod (47) through the through hole.

8. The rotary clamping device for laser cladding of shaft parts according to claim 1, characterized in that: An adjustment mechanism (6) is provided on the base (1). The adjustment mechanism (6) includes a guide rail (61) fixedly installed on the base (1), a slider (62) slidably sleeved on the guide rail (61), an adjustment groove (63) opened in the guide rail (61), a screw (64) rotatably installed in the adjustment groove (63), and a nut (65) threaded on the screw (64) and fixedly connected to the slider (62). One end of the screw (64) passes through the guide rail (61) and is fixedly connected to a handle (66). The movable seat (3) is fixedly installed on the slider (62).

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