An automatic centering fixture for shaft parts with laser calibration

Abstract

This utility model discloses an automatic centering fixture for shaft parts with laser calibration, belonging to the field of mechanical manufacturing. The fixture includes a lateral movement assembly and a rounded base plate. A lifting assembly is mounted on the execution guide component of the lateral movement assembly, and a three-jaw chuck is mounted on the linear motion function component of the lifting assembly. A laser receiver and a laser emitter are respectively mounted on the rounded base plate and the lifting assembly via long and short slide rods, with their positions corresponding. The lateral movement assembly drives the lifting assembly to move laterally, and the lifting assembly drives the three-jaw chuck to move up and down; the three-jaw chuck is used to clamp shaft parts. The laser receiver receives laser light from the laser emitter to achieve precise calibration, cooperating with the lateral movement and lifting assembly to complete automatic centering. It has a laser calibration function, reducing human error and improving centering efficiency and accuracy; the lateral movement and lifting assembly work together to adapt to different processing needs, making it highly versatile; the motor with a built-in mechanical locking function ensures stable positioning.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing, and in particular to an automatic centering fixture for shaft parts with laser calibration. Background Technology

[0002] In the machining process of shaft parts, the precision directly affects the machining quality and assembly performance of the parts.

[0003] In the existing technology, the centering fixtures for shaft parts mostly rely on manual operation or mechanical limit for centering. This is not only cumbersome and inefficient, but also prone to insufficient centering accuracy due to human judgment errors or wear of mechanical parts, making it difficult to meet the needs of high-precision machining.

[0004] With the increasing automation and intelligence of the manufacturing industry, higher requirements are being placed on the precision and efficiency of shaft parts processing equipment. While existing automatic centering fixtures reduce manual intervention to some extent, they lack precise real-time calibration methods during the centering process. Often, minute displacements during equipment operation or slight deviations in part clamping lead to a decrease in centering accuracy, which in turn affects the quality stability of subsequent machining processes such as turning, grinding, and drilling.

[0005] Furthermore, traditional fixtures have poor versatility. For shaft parts of different specifications and processing scenarios, frequent fixture changes or complex adjustments are required, increasing production preparation time and costs. To address this, an automatic centering fixture for shaft parts with laser calibration is proposed. Utility Model Content

[0006] The purpose of this invention is to solve the above problems by proposing an automatic centering fixture for shaft parts that has precise calibration function, is easy to operate, and has strong versatility, thus meeting the key requirements for improving the processing efficiency and quality of shaft parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an automatic centering fixture for shaft parts with laser calibration, comprising a transverse component and a rounded base plate. A lifting component is mounted on the execution guide component of the transverse component, and a three-jaw chuck is mounted on the linear motion function component of the lifting component. A long slide rod is welded to the upper end of the rounded base plate, and a short slide rod is welded to the upper end of the lifting component. A laser receiver is rigidly and detachably mounted on the long slide rod by bolts, and a laser emitter is rigidly and detachably mounted on the short slide rod by bolts.

[0008] Preferably, the laser receiver is positioned corresponding to the laser emitter, and the laser receiver receives the laser emitted by the laser emitter. A triangular plate is welded between the surface of the rounded base plate and the lower end of the long slide rod, and mounting holes are provided on the surface of the rounded base plate.

[0009] Preferably, the transverse component includes a slide rail base plate with mounting holes on its surface, a limiting hole plate welded to the rear end of the slide rail base plate, a first motor welded to the front end of the slide rail base plate, a first motor installed in the motor frame, a long lead screw rotatably installed between the through hole of the limiting hole plate and the output end of the first motor, and a slide frame slidably installed on the guide rail of the slide rail base plate. The first motor drives the long lead screw to rotate, and through the cooperation between the long lead screw and the threaded through hole on the slide frame, the rotational motion is converted into linear motion, thereby driving the slide frame to move along the axial direction of the lead screw.

[0010] Preferably, the sliding frame is an execution guide component of the lateral movement assembly.

[0011] Preferably, the lifting assembly includes a U-shaped frame welded to the slide frame, a guide rail for the linear motion functional component, a limiting slide rod welded inside the U-shaped frame to increase the stability of the linear motion functional component, a fixed plate welded to the middle of the U-shaped frame, a motor slide plate slidably mounted on the lower end of the limiting slide rod, a lifting plate slidably mounted on the upper end of the limiting slide rod, a chuck outer frame welded to the surface of the lifting plate, a second motor installed inside the motor slide plate, a short lead screw threadedly mounted in the threaded through hole of the fixed plate, the upper end of the short lead screw being inserted into the limiting through hole of the lifting plate, and the lower end being welded to the output end of the second motor. The second motor drives the short lead screw to rotate and, in conjunction with the threaded through hole of the fixed plate, is the drive source for controlling the lifting of the motor slide plate and the lifting plate along the U-shaped frame, and a three-axis cylinder welded inside the rectangular frame at the upper end of the chuck outer frame.

[0012] Preferably, the limiting slide rod passes through the through holes of the fixed plate, the motor slide plate, and the lifting plate.

[0013] Preferably, the motor slide plate, lifting plate and chuck frame are linear motion functional components of the lifting assembly, the three-jaw chuck is located inside the chuck frame, the output end of the three-axis cylinder is inserted into the limiting hole of the three-jaw chuck, and the surface of the chuck frame has an opening that exposes the hexagonal adjusting screw inside the three-jaw chuck.

[0014] Preferably, the No. 1 and No. 2 motors are motors with built-in mechanical locking function, and can be motors with electromagnetic brakes, stepper motors, servo motors or worm gear reducers.

[0015] The beneficial effects of this utility model are as follows: By setting up this automatic centering fixture for shaft parts with laser calibration, the following beneficial effects are achieved:

[0016] The laser calibration function is precise and efficient. Through the corresponding cooperation of the laser transmitter and receiver, it can automatically center shaft parts, reduce manual operation errors, and improve centering efficiency and accuracy.

[0017] The lateral and lifting components work together to flexibly adjust the clamping position of parts, adapt to different processing needs, and enhance the versatility of the fixture.

[0018] The component design balances stability and convenience: the motor with built-in mechanical locking function ensures stable position when the equipment is stopped or moving; the laser device is detachable and easy to maintain and adjust; the triangular plate reinforces the long slide bar, improving the overall structural stability.

[0019] The mounting hole design makes the fixture easy to fix on various processing equipment, making it suitable for a wide range of applications. Attached Figure Description

[0020] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Appendix Figure 2 This is an exploded view of the transverse moving component structure of this utility model;

[0022] Appendix Figure 3 This is a schematic diagram of the rounded base plate, long sliding rod, and laser receiver structure of this utility model;

[0023] Appendix Figure 4 This is an exploded view of the lifting component structure of this utility model.

[0024] Legend: 1. Lateral movement assembly; 101. Slide rail base plate; 102. Limiting hole plate; 103. Motor outer frame; 104. Motor No. 1; 105. Long lead screw; 106. Slide frame; 2. Rounded corner base plate; 3. Lifting assembly; 301. U-shaped frame; 302. Limiting slide bar; 303. Fixing plate; 304. Motor slide plate; 305. Lifting plate; 306. Chuck outer frame; 307. Motor No. 2; 308. Short lead screw; 309. Three-axis cylinder; 4. Three-jaw chuck; 5. Long slide bar; 6. Short slide bar; 7. Laser receiver; 8. Laser emitter. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] See Figure 1-4As shown in the figure, this embodiment of an automatic centering fixture for shaft parts with laser calibration includes a transverse component 1 and a rounded base plate 2. A lifting component 3 is installed on the execution guide component of the transverse component 1. A three-jaw chuck 4 is installed on the linear motion function component of the lifting component 3. A long slide rod 5 is welded to the upper end of the rounded base plate 2. A short slide rod 6 is welded to the upper end of the lifting component 3. A laser receiver 7 is rigidly fixedly installed on the long slide rod 5 by bolts. A laser emitter 8 is rigidly fixedly installed on the short slide rod 6 by bolts.

[0027] The laser receiver 7 corresponds to the position of the laser emitter 8. The laser receiver 7 receives the laser emitted by the laser emitter 8. A triangular plate is welded between the surface of the rounded base plate 2 and the lower end of the long slide rod 5. The surface of the rounded base plate 2 is provided with mounting holes.

[0028] Overall structural composition: The automatic centering fixture for shaft parts with laser calibration in this embodiment has the following core components: transverse component 1, rounded base plate 2, lifting component 3, three-jaw chuck 4, long slide bar 5, short slide bar 6, laser receiver 7, and laser emitter 8. The components work together to achieve automatic centering and processing assistance functions for shaft parts.

[0029] The lifting assembly 3 is mounted on the sliding frame 106 of the execution guide component of the lateral movement assembly 1, providing a basis for the lateral movement of the lifting assembly.

[0030] The linear motion functional components of the lifting assembly 3, such as the motor slide plate 304 and the lifting plate 305, are equipped with a three-jaw chuck 4, which is used to clamp shaft parts and drive them to rise and fall.

[0031] A long slide bar 5 is welded to the upper end of the rounded base plate 2, and a short slide bar 6 is welded to the upper end of the lifting assembly 3. A laser receiver 7 and a laser emitter 8 are respectively rigidly and detachably fixed on the long slide bar 5 and the short slide bar 6 by bolts. The laser receiver 7 and the laser emitter 8 are positioned corresponding to each other. The laser receiver 7 can receive the laser emitted by the laser emitter 8, thereby realizing the laser calibration function.

[0032] A triangular plate is welded between the surface of the rounded base plate 2 and the lower end of the long slide bar 5 to reinforce the long slide bar; the surface of the rounded base plate 2 is provided with mounting holes for mounting the fixture onto the processing equipment.

[0033] See appendix Figure 1-2As shown, the transverse component 1 includes a slide rail base plate 101 with mounting holes on its surface, a limiting hole plate 102 welded to the rear end of the slide rail base plate 101, a primary motor 104 welded to the front end of the slide rail base plate 101, a primary motor 104 installed inside a motor frame 103, a long lead screw 105 rotatably installed between the through hole of the limiting hole plate 102 and the output end of the primary motor 104, and a slide frame 106 slidably installed on the guide rail of the slide rail base plate 101. The primary motor 104 drives the long lead screw 105 to rotate. Through the cooperation between the long lead screw and the threaded through hole on the slide frame 106, the rotational motion is converted into linear motion, thereby driving the slide frame 106 to move along the lead screw axis.

[0034] The sliding frame 106 is the execution guide component of the horizontal movement assembly 1.

[0035] Specifically, the main function of the lateral movement component 1 is to drive the lifting component 3 and the three-jaw chuck 4 to move laterally. Its composition and function are as follows:

[0036] Slide rail base plate 101: The surface is provided with mounting holes, which is the basic mounting component of the transverse component and is used to connect with other equipment or structures;

[0037] Limiting hole plate 102: welded to the rear end of slide rail base plate 101, it serves to limit movement and prevent slide frame 106 from moving excessively;

[0038] Motor 104: Welded to the front end of slide rail base plate 101, it is the power source of the transverse component and provides power for the rotation of long lead screw 105.

[0039] Motor outer frame 103: It serves to protect and fix the No. 1 motor 104, and at the same time provides stable support when the long lead screw 105 rotates;

[0040] Long lead screw 105: Rotatably mounted between the through hole of the limiting hole plate 102 and the output end of the first motor 104, and rotates under the drive of the first motor 104;

[0041] Slide frame 106: It can be slidably installed on the guide rail of slide rail base plate 101 and is threadedly engaged with long lead screw 105. When long lead screw 105 rotates, it drives slide frame 106 to move laterally along slide rail of slide rail base plate 101. Slide frame 106 is the execution guide component of transverse movement component 1.

[0042] See appendix Figure 1-4As shown, the lifting assembly 3 includes a U-shaped frame 301 welded to the slide frame 106 as a guide rail for the linear motion functional component, a limiting slide rod 302 welded inside the U-shaped frame 301 to increase the stability of the linear motion functional component, a fixing plate 303 welded to the middle of the U-shaped frame 301, a motor slide plate 304 slidably mounted on the lower end of the limiting slide rod 302, a lifting plate 305 slidably mounted on the upper end of the limiting slide rod 302, and a chuck outer frame 306 welded to the surface of the lifting plate 305 and mounted on the motor. The second motor 307 inside the slide plate 304 is threadedly installed in the threaded through hole of the fixed plate 303 with a short lead screw 308. The upper end of the short lead screw 308 is inserted into the limiting through hole of the lifting plate 305, and the lower end is welded to the output end of the second motor 307. The second motor 307 drives the short lead screw 308 to rotate. It is also the drive source for controlling the movement of the motor slide plate 304 and the lifting plate 305 along the U-shaped frame 301, which is matched with the threaded through hole of the fixed plate 303. The three-axis cylinder 309 is welded to the rectangular frame at the upper end of the chuck outer frame 306.

[0043] The limiting slide bar 302 passes through the through holes of the fixed plate 303, the motor slide plate 304, and the lifting plate 305.

[0044] The motor slide plate 304, the lifting plate 305 and the chuck outer frame 306 are linear motion functional components of the lifting assembly 3. The three-jaw chuck 4 is located inside the chuck outer frame 306. The output end of the three-axis cylinder 309 is inserted into the limiting hole of the three-jaw chuck 4. The surface of the chuck outer frame 306 has an opening that exposes the internal hexagonal adjustment screw of the three-jaw chuck 4.

[0045] Specifically, the main function of the lifting component 3 is to drive the three-jaw chuck 4 to perform lifting and lowering movements. Its composition and functions are as follows:

[0046] U-shaped frame 301: Welded onto slide frame 106, it is the basic frame of the lifting assembly and provides installation and movement guidance for other components;

[0047] Limiting slide bar 302: Welded inside the U-shaped frame 301, it passes through the through hole of the fixed plate 303, the motor slide plate 304 and the lifting plate 305, increasing the stability of the linear motion functional components and ensuring that the lifting and lowering movements of the motor slide plate 304 and the lifting plate 305 are more stable.

[0048] Fixed plate 303: welded to the middle of U-shaped frame 301, with threaded through holes for use with short lead screw 308 to achieve lifting control;

[0049] Motor slide plate 304: It can be slidably installed at the lower end of the limit slide bar 302, used to install the second motor 307, and rises and falls together with the lifting plate 305 under the drive of the short lead screw 308;

[0050] Lifting plate 305: It can be slidably installed on the upper end of the limiting slide bar 302 and linked with the motor slide plate 304. During the lifting movement, it drives the chuck outer frame 306 and the three-jaw chuck 4 to lift.

[0051] Chuck outer frame 306: welded to the surface of lifting plate 305, used to install three-jaw chuck 4. Its surface has an opening to facilitate the insertion of a hex wrench into the hexagonal adjusting screw groove of the three-jaw chuck 4 for adjustment.

[0052] Motor No. 2 307: Installed inside the motor slide plate 304, it is the power source of the lifting assembly and drives the short lead screw 308 to rotate;

[0053] Short lead screw 308: It is threadedly installed in the threaded through hole of the fixed plate 303. The upper end is inserted into the limiting through hole of the lifting plate 305, and the lower end is welded to the output end of the second motor 307. It rotates under the drive of the second motor 307. Through the engagement with the threaded through hole of the fixed plate 303, it controls the motor slide plate 304 and the lifting plate 305 to rise and fall along the U-shaped frame 301.

[0054] The No. 2 motor 307 and the short lead screw 308 work together: the No. 2 motor 307 drives the short lead screw 308 to rotate, which drives the motor slide plate 304 and the lifting plate 305 to rise and fall along the U-shaped frame 301, thereby realizing the height adjustment of the three-jaw chuck 4.

[0055] Three-axis cylinder 309: Welded into the rectangular frame at the upper end of the chuck outer frame 306, its output end can be inserted into the limiting hole of the three-jaw chuck 4, which plays a limiting and fixing role for the three-jaw chuck 4. When it is necessary to drive the shaft parts to rotate, the output end of the three-axis cylinder 309 retracts and is pulled out from the limiting hole of the three-jaw chuck 4, so that the three-jaw chuck 4 can rotate within the chuck outer frame 306.

[0056] The motor slide plate 304, the lifting plate 305, and the chuck frame 306 together constitute the linear motion functional components of the lifting assembly 3.

[0057] See appendix Figure 1-4 As shown, the first motor 104 and the second motor 307 are motors with built-in mechanical locking function, and can be motors with electromagnetic brakes, stepper motors, servo motors or worm gear reducers.

[0058] Specifically, motor 104 and motor 307 are motors with built-in mechanical locking function. They can be motors with electromagnetic brakes, stepper motors, servo motors, or worm gear reducers. These types of motors can maintain their current position when they stop moving, ensuring the stability and accuracy of the fixture during operation.

[0059] The working process of this utility model is as follows: Installation and fixing: The fixture is installed on the equipment for processing shaft parts through the mounting holes on the rounded corner base plate 2 and the slide rail base plate 101.

[0060] Position adjustment: Adjust the position of the laser receiver 7 and the laser emitter 8 on the long slide bar 5 and the short slide bar 6 by adjusting the bolts on the laser receiver 7 and the laser emitter 8.

[0061] Part clamping: Use a hex wrench to pass through the opening on the surface of the chuck outer frame 306 and insert it into the hexagonal adjusting screw groove hole of the three-jaw chuck 4 to clamp and fix the shaft parts in the three-jaw chuck 4.

[0062] Automatic laser calibration centering: The motor outer frame 103 drives the long lead screw 105 to rotate, driving the slide frame 106 to move laterally along the slide rail base plate 101; the second motor 307 drives the short lead screw 308 to rotate, driving the motor slide plate 304 and the lifting plate 305 to rise and fall along the U-shaped frame 301 until the laser emitted by the laser emitter 8 is received by the laser receiver 7, completing the automatic centering.

[0063] Part rotation: When it is necessary to drive shaft parts to rotate, the output end of the three-axis cylinder 309 retracts and is pulled out from the limiting hole of the three-jaw chuck 4, so that the three-jaw chuck 4 can rotate within the chuck outer frame 306.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser calibrated automatic centering fixture for shafts, characterized in that: The assembly includes a transverse component (1) and a rounded base plate (2). A lifting component (3) is installed on the execution guide component of the transverse component (1). A three-jaw chuck (4) is installed on the linear motion function component of the lifting component (3). A long slide rod (5) is welded to the upper end of the rounded base plate (2). A short slide rod (6) is welded to the upper end of the lifting component (3). A laser receiver (7) is rigidly fixedly installed on the long slide rod (5) by bolts. A laser emitter (8) is rigidly fixedly installed on the short slide rod (6) by bolts.

2. The automatic centering fixture with laser calibration for shaft parts according to claim 1, characterized in that: The laser receiver (7) is located corresponding to the laser emitter (8). The laser receiver (7) receives the laser emitted by the laser emitter (8). A triangular plate is welded between the surface of the rounded base plate (2) and the lower end of the long slide rod (5). The surface of the rounded base plate (2) is provided with mounting holes.

3. The automatic centering fixture with laser calibration for shaft parts according to claim 2, characterized in that: The transverse component (1) includes a slide rail base plate (101) with mounting holes on its surface, a limiting hole plate (102) welded to the rear end of the slide rail base plate (101), a first motor (104) welded to the front end of the slide rail base plate (101), a first motor (104) installed in the motor frame (103), a long lead screw (105) rotatably installed between the through hole of the limiting hole plate (102) and the output end of the first motor (104), and a slide frame (106) slidably installed on the guide rail of the slide rail base plate (101). The first motor (104) drives the long lead screw (105) to rotate. Through the cooperation between the long lead screw and the threaded through hole on the slide frame (106), the rotational motion is converted into linear motion, thereby driving the slide frame (106) to move along the lead screw axis.

4. The automatic centering fixture with laser calibration for shaft parts according to claim 3, characterized in that: The sliding frame (106) is the execution guide component of the transverse component (1).

5. The automatic centering fixture with laser calibration for shaft parts according to claim 4, characterized in that: The lifting assembly (3) includes a U-shaped frame (301) welded to the slide frame (106) as a guide rail for the linear motion functional component, a limiting slide rod (302) welded inside the U-shaped frame (301) to increase the stability of the linear motion functional component, a fixing plate (303) welded to the middle of the U-shaped frame (301), a motor slide plate (304) slidably mounted on the lower end of the limiting slide rod (302), a lifting plate (305) slidably mounted on the upper end of the limiting slide rod (302), a chuck outer frame (306) welded to the surface of the lifting plate (305), and a chuck outer frame (306) mounted on the motor slide plate (304). The second motor (307) inside 304 is threadedly installed in the threaded through hole of the fixed plate (303) with a short lead screw (308). The upper end of the short lead screw (308) is inserted into the limiting through hole of the lifting plate (305), and the lower end is welded to the output end of the second motor (307). The second motor (307) drives the short lead screw (308) to rotate. It is matched with the threaded through hole of the fixed plate (303) and is the driving source for controlling the motor slide plate (304) and the lifting plate (305) to rise and fall along the U-shaped frame (301). The three-axis cylinder (309) is welded to the rectangular frame at the upper end of the chuck outer frame (306).

6. The automatic centering fixture with laser calibration for shaft parts according to claim 5, characterized in that: The limiting slide bar (302) passes through the through holes of the fixed plate (303), the motor slide plate (304), and the lifting plate (305).

7. The automatic centering fixture with laser calibration for shaft parts according to claim 6, characterized in that: The motor slide plate (304), lifting plate (305) and chuck outer frame (306) are linear motion functional components of the lifting assembly (3). The three-jaw chuck (4) is located inside the chuck outer frame (306). The output end of the three-axis cylinder (309) is inserted into the limiting hole of the three-jaw chuck (4). The surface of the chuck outer frame (306) has an opening that exposes the internal hexagonal adjusting screw of the three-jaw chuck (4).

8. The automatic centering fixture with laser calibration for shaft parts according to claim 6, characterized in that: The No. 1 motor (104) and the No. 2 motor (307) are motors with built-in mechanical locking function, and can be motors with electromagnetic brakes, stepper motors, servo motors or worm gear reducers.

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