Positioning mechanism for coupling polishing

Abstract

The utility model discloses a positioning mechanism for coupler polishing, relates to the field of coupler machining auxiliary equipment, and aims to solve the problem that the machining quality and the production efficiency of a coupler are affected due to the fact that a blank area and surface indentations exist in the machining process of the coupler. A sliding table is arranged on the base, a right support is rotationally connected to the sliding table, a left support is arranged on the side edge of the right support and fixedly connected with the base, supporting shafts are arranged on the left support and the right support, inner hole positioners are arranged at the ends of the two supporting shafts, a grinding shaft is connected to the middles of the two inner hole positioners in a clamped mode, and the grinding shaft is fixedly connected with the base. The polishing device has the advantages that the polishing shaft can be conveniently installed and fixed through the rotating right support, the inner hole positioner can avoid polishing blank leaving, and therefore the polishing efficiency and quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coupling processing auxiliary equipment, in particular to a positioning mechanism for coupling grinding. Background Art

[0002] Couplings, as key components in mechanical transmission systems, connect two or more shafts to transmit torque or rotational motion. During the coupling manufacturing process, the smoothness of the outer surface is crucial to its performance and lifespan. Therefore, polishing is an integral part of coupling processing, aiming to remove surface defects and improve the finish, thereby ensuring precise fit and stable operation.

[0003] Traditionally, coupling grinding has primarily relied on machine tools. Machine tools, with their high precision and efficiency, play a crucial role in metalworking. However, during the coupling grinding process, the machine tool uses a three-jaw chuck for clamping and limiting. A common fixture on machine tools, the three-jaw chuck radially clamps the workpiece, thereby achieving positioning. However, this clamping method prevents the clamped portion of the workpiece from being effectively polished, creating a so-called "white area." This white area not only affects the overall appearance of the coupling but, more importantly, can compromise its assembly accuracy and performance. To compensate for this shortcoming, workers often need to perform additional processing after machine grinding to address the white area that cannot be reached by hand. This significantly increases production steps and labor costs, reducing production efficiency.

[0004] Furthermore, a three-jaw chuck typically requires a certain amount of clamping force to ensure secure fixation when clamping a coupling. This clamping force creates an indentation on the coupling surface, which not only damages the coupling's surface integrity but can also become a source of stress concentration, reducing the coupling's strength and durability. This indentation is particularly significant when high-precision machining is performed on the coupling.

[0005] In summary, the machine tool grinding and positioning method has many shortcomings in the coupling processing process, such as the generation of blank areas and the formation of surface indentations. These problems not only affect the processing quality and production efficiency of the coupling, but also increase the difficulty and cost of subsequent processing. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a positioning mechanism for coupling grinding. Through this design, the problem of blank areas and surface indentations in the coupling during processing, which affects the processing quality and production efficiency of the coupling, is effectively solved.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the present invention includes a base, a slide is slidably connected to the base, a right bracket is rotatably connected to the slide, a left bracket is provided on the side of the right bracket, the left bracket is fixedly connected to the base, and a support shaft is provided on each of the left bracket and the right bracket, and an inner hole locator is provided at the end of each of the two support shafts, and a grinding shaft is clamped in the middle of the two inner hole locators;

[0008] The inner hole locator includes a chuck and a claw. The chuck is fixedly connected to the support shaft. A fixing rod is fixedly connected to the middle of the chuck. An electromagnetic disk is provided on the side of the claw. The electromagnetic disk is fixedly connected to the chuck. A sliding groove for the claw to slide is opened on the electromagnetic disk.

[0009] Preferably, a connecting pin is fixedly connected to the right bracket, and a guide groove for sliding of the connecting pin is provided on the slide, the guide groove is an arc-shaped structure, and the connecting pin is threadedly connected to a fixed handle, and the fixed handle is located on the outside of the slide.

[0010] Preferably, the two groups of clamping claws are both L-shaped structures, and the inner sides of the clamping claws are provided with grooves that cooperate with the fixing rods, and the central axes of the two groups of fixing rods are collinear when they are in the horizontal position.

[0011] Preferably, an electromagnetic slide is provided on the base, and a slot cooperating with the electromagnetic slide is provided on the slide.

[0012] Preferably, a guide rod is fixedly connected to the base, a guide block is fixedly connected to the slide, and the guide block is slidably connected to the guide rod.

[0013] Preferably, a size bar is provided on the base, and the left end of the size bar is aligned with the electromagnetic disk of the left bracket.

[0014] Compared with the prior art, this utility model has the following outstanding advantages:

[0015] The inner hole positioner in the utility model fixes the inner hole of the grinding shaft, avoids leaving blank areas during the grinding process, reduces the workload of manual processing, and improves the processing efficiency of the coupling.

[0016] The clamping claw and the fixing rod in the inner hole locator of the utility model extend into the inner hole of the grinding shaft, the fixing rod squeezes the inside of the grinding shaft for positioning, the extension and retraction of the clamping claw prevents the grinding shaft from shaking, and at the same time an electromagnetic disk is installed at the end of the grinding shaft for positioning, thereby ensuring the stability of the grinding shaft and ensuring that the grinding shaft is fixed in the center.

[0017] The right bracket of the utility model is rotatably connected to the slide table. When installing the grinding shaft, the inner hole positioner can be rotated to a vertically upward position, which makes it convenient to insert the fixing rod and the claw into the inner hole of the grinding shaft, thereby improving the installation efficiency of the grinding shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the first axis side structure of the utility model.

[0019] Figure 2 This is a schematic diagram of the second axis side structure of the utility model.

[0020] Figure 3 It is a schematic diagram of the forward structure of the utility model.

[0021] Figure 4 This is a schematic diagram of the slide connection structure of the utility model.

[0022] Figure 5 This is a schematic diagram of the exploded structure of the inner hole locator of the utility model.

[0023] Numbers in the figure: 1. Base; 2. Slide; 3. Right bracket; 4. Left bracket; 5. Support shaft; 6. Inner hole locator; 601. Chuck; 602. Claw; 603. Fixed rod; 604. Electromagnetic disk; 605. Slide; 7. Grinding shaft; 8. Connecting pin; 9. Guide groove; 10. Fixed handle; 11. Groove; 12. Electromagnetic slide; 13. Slot; 14. Guide rod; 15. Guide block; 16. Size strip. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] Please see the attached Figure 1-5 The present embodiment provides a positioning mechanism for grinding a coupling, comprising a base 1, a slide 2 being slidably connected to the base 1, a right bracket 3 being rotatably connected to the slide 2, a left bracket 4 being provided on the side of the right bracket 3, the left bracket 4 being fixedly connected to the base 1, a support shaft 5 being provided on both the left bracket 4 and the right bracket 3, two inner hole locators 6 being provided at the ends of the two support shafts 5, and a grinding shaft 7 being clamped at the middle of the two inner hole locators 6.

[0026] The base 1 is fixedly connected to the machine tool. The base 1 is located below the grinding mechanism of the machine tool. The left bracket 4 and the right bracket 3 on the base 1 respectively support the two ends of the grinding shaft 7. There are inner hole locators 6 on the left bracket 4 and the right bracket 3. There are through holes at both ends of the grinding shaft 7, but the through holes do not pass through the grinding shaft 7. The left bracket 4 is fixed to the base 1. The position of the left bracket 4 is fixed. The right bracket 3 is fixedly connected to the slide 2. At the same time, the right bracket 3 and the slide 2 can be rotated and adjusted. When installing the grinding shaft 7, the right bracket 3 can be rotated ninety degrees clockwise. At this time, the support shaft 5 and the inner hole locator 6 on the right bracket 3 are In the vertical state, when installing the grinding shaft 7, the grinding shaft 7 can be vertically inserted into the inner hole locator 6 for fixing, and then the right bracket 3 is rotated in the opposite direction. At this time, the inner hole locator 6 of the right bracket 3 corresponds to the center of the inner hole locator 6 of the left bracket 4. Then the slide 2 is moved, and the grinding shaft 7 is driven to move to the left through the slide 2 until the left end of the grinding shaft 7 is fitted with the inner hole locator 6 on the left bracket 4. At this time, the two inner hole locators 6 fix the inner holes of the two ends of the grinding shaft 7 to avoid leaving blank areas. At the same time, both ends of the grinding shaft 7 are supported, which can better improve the stability of the grinding shaft 7 and avoid scratches on the grinding shaft 7 caused by excessive clamping.

[0027] The inner hole locator 6 includes a chuck 601 and a claw 602. The chuck 601 is fixedly connected to the support shaft 5. A fixed rod 603 is fixedly connected to the middle of the chuck 601. An electromagnetic disk 604 is provided on the side of the claw 602. The electromagnetic disk 604 is fixedly connected to the chuck 601. A sliding groove 605 is provided on the electromagnetic disk 604 for the claw 602 to slide.

[0028] The structure of the chuck 601 and the claw 602 in the inner hole locator 6 is the same as that of the existing three-jaw chuck 601. There are three claws 602, which are distributed at equal angles on the chuck 601. The three claws 602 are all facing the center of the chuck 601. The three claws 602 can be synchronously gathered or spread toward the center of the chuck 601. The structure of the claw 602 is different from that of the existing three-jaw chuck 601. The outer side of the claw 602 is provided with an anti-slip layer, and the fixing rod 603 is located at the claw 60 2, the length of the fixing rod 603 is the same as the length of the inner hole of the grinding shaft 7. When fixing the inner hole of the grinding shaft 7, the fixing rod 603 just supports the bottom surface of the inner hole, and at the same time, the three claws 602 fix the side of the inner hole. In addition, an electromagnetic disk 604 is installed on the inner hole fixer. The electromagnetic disk 604 is close to the end face of the grinding shaft 7. The electromagnetic disk 604 is an electromagnetic structure that has magnetism when powered on and has no magnetism when powered off. While improving the stability of the grinding shaft 7, it is convenient for disassembly of the grinding shaft 7.

[0029] When the right bracket 3 rotates relative to the slide 2, the connecting pin 8 slides in the guide slot 9, and the angle of the guide slot 9 is ninety degrees. This ensures that when the connecting pin 8 is at the lowermost position of the guide slot 9, the support shaft 5 on the right bracket 3 is in a horizontal state. At this time, the axes of the two support shafts 5 are collinear. When the connecting pin 8 is at the uppermost position of the guide slot 9, the support shaft 5 on the right bracket 3 is in a vertical state. This can ensure the two extreme states of the support shaft 5, which is convenient for fixing and positioning the grinding shaft 7. The fixing handle 10 is threadedly connected to the connecting pin 8. The size of the fixing handle 10 is larger than the size of the guide slot 9. The fixing handle 10 squeezes the slide 2 to keep the slide 2 and the right bracket 3 fixed.

[0030] The clamping claw 602 is an L-shaped structure, and the groove 11 on the inner side of the clamping claw fits with the fixing rod 603. The end of the clamping claw 602 is an oblique groove, which makes it convenient for the clamping claw 602 to enter the inner diameter force of the connecting pin 8 along with the fixing rod 603. In addition, the fixing rod 603 is a telescopic rod hydraulic telescopic rod structure, which can be applied to inner diameters of different depths.

[0031] The cooperation between the electromagnetic slide 12 and the card slot 13 drives the slide 2 to slide left and right on the base 1. The electromagnetic slide 12 drives and locks the movement of the slide 2. After the right bracket 3 and the left bracket 4 fix the grinding shaft 7, the electromagnetic slide 12 fixes the position of the slide 2. The guide rod 14 is located on the rear side of the base 1. The guide rod 14 guides the movement of the guide block 15, thereby ensuring that the moving trajectory of the slide 2 is left and right, and ensuring that the moving trajectory of the slide 2 is a straight line.

[0032] Furthermore, a size bar 16 is provided on the base 1, and the size bar 16 is used to measure the length of the grinding shaft 7. The left end of the size bar 16 is aligned with the electromagnetic disk 604 on the left bracket 4, and the left end of the slide 2 is aligned with the electromagnetic disk 604 on the right bracket 3. After fixing the grinding shaft 7, the length of the grinding shaft 7 is intuitively displayed through the number on the size bar 16 corresponding to the left end of the slide 2, which can be used to intuitively display the length of the grinding shaft 7 when adjusting the machine tool or even the grinding length.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positioning mechanism for coupling grinding, characterized by: The invention comprises a base (1), a slide (2) is slidably connected to the base (1), a right bracket (3) is rotatably connected to the slide (2), a left bracket (4) is provided on the side of the right bracket (3), the left bracket (4) is fixedly connected to the base (1), a support shaft (5) is provided on the left bracket (4) and the right bracket (3), the ends of the two support shafts (5) are provided with inner hole positioners (6), and the middle parts of the two inner hole positioners (6) are clamped with a grinding shaft (7); The inner hole locator (6) includes a chuck (601) and a claw (602), wherein the chuck (601) is fixedly connected to the support shaft (5), a fixing rod (603) is fixedly connected to the middle of the chuck (601), an electromagnetic disk (604) is provided on the side of the claw (602), the electromagnetic disk (604) is fixedly connected to the chuck (601), and a slide groove (605) for the claw (602) to slide is provided on the electromagnetic disk (604).

2. A coupling grinding positioning mechanism according to claim 1, characterized in that: A connecting pin (8) is fixedly connected to the right bracket (3), and a guide groove (9) for the connecting pin (8) to slide is provided on the slide (2), wherein the guide groove (9) is an arc-shaped structure, and a fixed handle (10) is threadedly connected to the connecting pin (8), and the fixed handle (10) is located outside the slide (2).

3. A coupling grinding positioning mechanism according to claim 1, characterized in that: The two groups of claws (602) are both L-shaped structures, and the inner sides of the claws (602) are provided with grooves (11) that cooperate with the fixing rods (603). The central axes of the two groups of fixing rods (603) are collinear when in the horizontal position.

4. A coupling grinding positioning mechanism according to claim 1, characterized in that: An electromagnetic slideway (12) is provided on the base (1), and a slot (13) cooperating with the electromagnetic slideway (12) is provided on the slide platform (2).

5. A coupling grinding positioning mechanism according to claim 1 or 4, characterized in that: A guide rod (14) is fixedly connected to the base (1), a guide block (15) is fixedly connected to the slide (2), and the guide block (15) is slidably connected to the guide rod (14).

6. A coupling grinding positioning mechanism according to claim 5, characterized in that: A size bar (16) is provided on the base (1), and the left end of the size bar (16) is aligned with the electromagnetic disk (604) of the left bracket (4).

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