Rapid crankshaft positioning tool

Abstract

The invention relates to the technical field of crankshaft machining, in particular to a crankshaft rapid positioning tool which comprises a workbench, a centering assembly, a clamping assembly and a limiting assembly, the centering assembly comprises a motor, a positive and negative tooth screw, sliding blocks and a supporting frame, a sliding groove is formed in the workbench, the positive and negative tooth screw and the two sets of symmetrically-arranged sliding blocks are arranged in the sliding groove, and the clamping assembly is arranged on the supporting frame. The sliding blocks are in threaded connection with the forward and reverse thread screw, the output end of the motor penetrates through the workbench and is connected with the forward and reverse thread screw, the sliding blocks are provided with supporting frames, and the motor drives the forward and reverse thread screw to rotate, so that the two sets of symmetrically-arranged sliding blocks synchronously and reversely move in the sliding grooves and are matched with the limiting assembly. And the supporting frame is driven to quickly center and position the crankshaft. It is ensured that the center position of the crankshaft is accurate in the machining process, and machining precision is improved; the clamping assemblies for machining the crankshafts of the corresponding specifications can be selected and replaced according to requirements, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The invention relates to the technical field of crankshaft processing, in particular to a crankshaft rapid positioning tool. Background Art

[0002] In crankshaft processing, the main function of the clamping device is to firmly fix the crankshaft to ensure that the crankshaft will not be displaced or shaken during the processing;

[0003] The existing crankshaft processing device is not convenient for assembling a fixture of corresponding specifications according to the specifications of the crankshaft, and it is not convenient for clamping and positioning crankshafts of different specifications and lengths, which is inconvenient to use. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a crankshaft rapid positioning tool.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a crankshaft quick positioning tool, comprising a workbench, a centering component, a clamping component and a limit component, the centering component comprising a motor, a positive and negative threaded screw, a slider and a support frame, the workbench is provided with a slide groove, the slide groove is provided with positive and negative threaded screws and two groups of symmetrically arranged sliders, the slider is threadedly connected with the positive and negative threaded screws, the output end of the motor passes through the workbench and is connected to the positive and negative threaded screws, the slider is provided with a support frame, the clamping component comprises a connecting piece, an auxiliary frame, a lifter, a lower clamping plate and an upper clamping plate, the auxiliary frame is provided with a connecting piece connected to the support frame, the lower clamping plate is provided at the lower part of the auxiliary frame, the lifter passes through the top wall of the auxiliary frame and is connected to the lower clamping plate, and the auxiliary frame is also provided with a limit component.

[0008] In order to facilitate the disassembly and assembly of the clamping assembly, the present invention has been improved in that the connecting member includes an insert block, a first elastic member and a clamping block, the insert block is plugged into the support frame, and movable grooves are provided on the left and right sides of the insert block, the two ends of the first elastic member are respectively connected to the inner wall of the movable groove and the clamping block, and the support frame is also provided with a clamping groove adapted to the clamping block.

[0009] In order to facilitate the limiting of materials, the present invention has been improved in that the limiting assembly includes a second elastic member and a baffle, the baffle is L-shaped, and a lifting groove is provided at one end of the plug block close to the auxiliary frame, and the two ends of the second elastic member are respectively connected to the bottom wall of the lifting groove and the bottom wall of the baffle.

[0010] Preferably, the first elastic member includes a first spring and a first telescopic rod, and the first spring is sleeved on the first telescopic rod.

[0011] Preferably, the second elastic member includes a second spring and a second telescopic rod, and the second spring is sleeved on the second telescopic rod.

[0012] In order to ensure the stability of clamping, the present invention is improved in that a protective pad is provided on one side of the upper clamping plate and the lower clamping plate close to the center of the auxiliary frame.

[0013] Preferably, legs are provided at the four lower corners of the workbench.

[0014] Preferably, the motor is a servo motor.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a crankshaft rapid positioning tool, which has the following beneficial effects:

[0017] The crankshaft quick positioning fixture uses a motor to drive the positive and negative thread screws to rotate, so that two sets of symmetrically arranged sliders move synchronously in opposite directions in the slideway, and cooperate with the limit assembly to drive the support frame to achieve quick centering and positioning of the crankshaft. This ensures that the center position of the crankshaft is accurate during the processing and improves the processing accuracy;

[0018] According to needs, you can choose to replace the clamping components for processing the crankshaft of corresponding specifications to facilitate disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0020] Figure 2 It is a partial bottom view schematic diagram of the structure of the present invention;

[0021] Figure 3 It is a partial explosion schematic diagram of the structure of the present invention;

[0022] Figure 4 The structure of the present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0023] Figure 5 The structure of the present invention Figure 3 Enlarged schematic diagram of point B in the middle.

[0024] In the figure: 1. workbench; 2. motor; 3. forward and reverse thread screws; 4. slider; 5. support frame; 6. auxiliary frame; 7. lifter; 8. lower clamping plate; 9. upper clamping plate; 10. plug-in block; 11. clamping block; 12. baffle; 13. first spring; 14. first telescopic rod; 15. second spring; 16. second telescopic rod; 17. leg; 18. protective pad. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-5 , a crankshaft quick positioning tool, including a workbench 1, a centering component, a clamping component and a limit component, the centering component includes a motor 2, a positive and negative threaded screw 3, a slider 4 and a support frame 5, the workbench 1 is provided with a slide groove, the slide groove is provided with positive and negative threaded screws 3 and two groups of symmetrically arranged sliders 4, the slider 4 is threadedly connected with the positive and negative threaded screws 3, the output end of the motor 2 passes through the workbench 1 and is connected to the positive and negative threaded screws 3, the slider 4 is provided with a support frame 5, the clamping component includes a connecting piece, an auxiliary frame 6, a lifter 7, a lower clamping plate 8 and an upper clamping plate 9, the auxiliary frame 6 is provided with a connecting piece connected to the support frame 5, the lower part of the auxiliary frame 6 is provided with the lower clamping plate 8, the lifter 7 passes through the top wall of the auxiliary frame 6 and is connected to the lower clamping plate 8, and the auxiliary frame 6 is also provided with a limit component.

[0027] During actual use, the limit assembly is initially in a naturally extended state. When the crankshaft needs to be centered and clamped, the distance between the two sets of sliders 4 is initially large. The auxiliary frame 6 is connected to the support frame 5 through a connecting piece. The motor 2 is started, and the motor 2 drives the forward and reverse screws 3 to rotate. The sliders 4 drive the support frame 5 to move toward each other. Then the crankshaft is placed on two sets of lower clamps 8 until the two sets of limit assemblies contact the ends of the crankshaft. The lifter 7 is started, and the lifter 7 drives the upper clamp 9 to clamp the material for subsequent processing.

[0028] In this embodiment, the connecting member includes an insert block 10, a first elastic member and a clamping block 11. The insert block 10 is plugged into the support frame 5. A movable groove is provided on the left and right sides of the insert block 10. The two ends of the first elastic member are respectively connected to the inner wall of the movable groove and the clamping block 11. The support frame 5 is also provided with a clamping groove adapted to the clamping block 11. The insert block 10 is plugged into the support frame 5. When the clamping block 11 is aligned with the clamping hole, the first elastic member includes a first spring 13 and a first telescopic rod 14. The first spring 13 is sleeved on the first telescopic rod 14. The first spring 13 pushes the clamping block 11 into the clamping hole. The first telescopic rod 14 ensures the stability of the movement of the clamping block 11.

[0029] When it is necessary to center and limit the material, the second elastic member pushes the baffle 12 to naturally extend. At this time, the end of the baffle 12 is at a height lower than the clamping plate 8. The limiting assembly includes a second elastic member and a baffle 12. The baffle 12 is L-shaped. The plug 10 is also provided with a lifting groove at one end close to the auxiliary frame 6. The two ends of the second elastic member are respectively connected to the bottom wall of the lifting groove and the bottom wall of the baffle 12. The second elastic member includes a second spring 15 and a second telescopic rod 16. The second spring 15 is sleeved on the second telescopic rod 16. The second spring 15 facilitates the stable movement of the baffle 12. The second telescopic rod 16 ensures the stability of the movement of the baffle 12. When it is not necessary to center and limit the material, the bottom wall of the material presses down the baffle 12. At this time, the end of the material can pass through the support frame 5.

[0030] In this embodiment, the upper clamping plate 9 and the lower clamping plate 8 are both provided with protective pads 18 near the center side of the auxiliary frame 6 to ensure stable clamping. Support legs 17 are provided at the four corners below the workbench 1 to facilitate stable support of the workbench 1. The motor 2 adopts a precisely controlled servo motor.

[0031] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0033] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crankshaft quick positioning tool, comprising a workbench (1), a centering assembly, a clamping assembly and a limiting assembly, characterized in that: The centering component comprises a motor (2), a positive and negative threaded screw (3), a slider (4) and a support frame (5); a slide groove is provided on the workbench (1); a positive and negative threaded screw (3) and two groups of symmetrically arranged sliders (4) are provided in the slide groove; the sliders (4) are threadedly connected to the positive and negative threaded screw (3); the output end of the motor (2) passes through the workbench (1) and is connected to the positive and negative threaded screw (3); a support frame (5) is provided on the slider (4); the clamping component comprises a connecting piece, an auxiliary frame (6), a lifter (7), a lower clamping plate (8) and an upper clamping plate (9); a connecting piece connected to the support frame (5) is provided on the auxiliary frame (6); the lower part of the auxiliary frame (6) is provided with the lower clamping plate (8); the lifter (7) passes through the top wall of the auxiliary frame (6) and is connected to the lower clamping plate (8); a limit position component is also provided on the auxiliary frame (6).

2. The crankshaft quick positioning tool according to claim 1, characterized in that: The connecting member comprises an insert block (10), a first elastic member and a clamping block (11); the insert block (10) is plugged into the support frame (5); movable grooves are arranged on the left and right sides of the insert block (10); two ends of the first elastic member are respectively connected to the inner wall of the movable groove and the clamping block (11); and a clamping groove adapted to the clamping block (11) is also arranged on the support frame (5).

3. The crankshaft quick positioning tool according to claim 2, characterized in that: The limiting assembly comprises a second elastic member and a baffle (12), the baffle (12) being L-shaped, and a lifting groove is further provided at one end of the plug block (10) close to the auxiliary frame (6), and the two ends of the second elastic member are respectively connected to the bottom wall of the lifting groove and the bottom wall of the baffle (12).

4. The crankshaft quick positioning tool according to claim 3, characterized in that: The first elastic member comprises a first spring (13) and a first telescopic rod (14), and the first spring (13) is sleeved on the first telescopic rod (14).

5. The crankshaft quick positioning tool according to claim 4, characterized in that: The second elastic member comprises a second spring (15) and a second telescopic rod (16), and the second spring (15) is sleeved on the second telescopic rod (16).

6. The crankshaft quick positioning tool according to claim 5, characterized in that: The upper clamping plate (9) and the lower clamping plate (8) are both provided with a protective pad (18) on one side close to the center of the auxiliary frame (6).

7. The crankshaft quick positioning tool according to claim 6, characterized in that: Support legs (17) are arranged at the four lower corners of the workbench (1).

8. The crankshaft quick positioning tool according to claim 7, characterized in that: The motor (2) is a servo motor.

Images