Fixing device for grinding mandrel

Abstract

The utility model belongs to the technical field of mandrel fixing equipment, and particularly relates to a fixing device for mandrel polishing, which comprises a mounting fixing plate, a mounting frame and a moving frame, the mounting frame is fixedly mounted on the surface of the upper end of the mounting fixing plate, the moving frame is slidably connected in the mounting frame, a bearing seat is fixedly mounted at the upper end of the moving frame, and the bearing seat is slidably connected in the mounting frame. According to the grinding device, the bearing seat is arranged, so that the shaft rotating rod can better drive the disc to rotate in the later period, and the mandrel clamped and fixed by the two grinding discs can rotate in the later period, so that the grinding position can be changed through rotation; tediousness caused by disassembly and reinstallation is avoided. And in addition, by arranging a limiting mechanism, the shaft rotating rod can be correspondingly limited, so that the shaft rotating rod can be fixed when rotation is not needed, the situation that the polishing operation is influenced by autorotation in the polishing period is avoided, and a better using effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mandrel fixing equipment, in particular to a fixing device for mandrel grinding. Background Art

[0002] The mandrel is a component widely used in mechanical equipment, which mainly plays the role of supporting, positioning or transmitting torque; and the production of mandrels is inseparable from the corresponding grinding process; the mandrel grinding fixture is a device used to firmly fix the mandrel during the grinding process; because the grinding operation requires a certain amount of force and precision, the fixture is crucial to ensure the stability of the position of the mandrel, prevent deviation and provide a uniform grinding effect; the mandrel grinding fixtures currently used on the market are mostly composed of left and right end clamping plates, bidirectional threaded rods, etc., so that the mandrel to be ground is placed between the left and right end clamping plates, and then the left and right end clamping plates move relative to each other and fix it; although this can achieve the final fixing effect, this fixation will cause the mandrel to be unable to rotate in the later stage. If it needs to be rotated, the left and right end clamping plates must be unfolded to complete it, which will increase the grinding process and affect the overall grinding efficiency. For this reason, we provide a mandrel grinding fixture. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a fixing device for core shaft grinding, so as to more accurately solve the problems raised in the above background technology.

[0004] The utility model is realized by the following technical solutions:

[0005] The utility model provides a fixing device for core shaft grinding, comprising a mounting plate, a mounting frame and a moving frame, wherein the mounting frame is fixedly mounted on the upper end surface of the mounting plate, the moving frame is slidably connected to the inside of the mounting frame, a bearing seat is fixedly mounted on the upper end of the moving frame, the moving frame is rotatably connected to an axial rotating rod through the bearing seat, a disc is fixedly connected to the end of the axial rotating rod, a bidirectional threaded rod is rotatably mounted in the interior of the mounting frame through a bearing, a threaded barrel is threadedly sleeved on the outer periphery of the bidirectional threaded rod, and the threaded barrel is mounted on the moving frame, and a limiting mechanism is connected between the moving frame and the axial rotating rod;

[0006] The limiting mechanism includes a rectangular opening opened on the side of the movable frame, the inner side wall of the rectangular opening is provided with a strip placement groove, the inner wall of the strip placement groove is slidably connected with a movable sleeve block, an overlapping slider is fixedly connected between two movable sleeve blocks, a limiting plug rod is fixedly connected to the upper end surface of the overlapping slider, a limiting plug hole is provided on the periphery of one end of the shaft rotating rod, and four limiting plug holes are evenly provided.

[0007] Furthermore, the limiting mechanism also includes a vertical fixing rod, a spring and a pressing block, the vertical fixing rod is fixedly connected between the two end walls of the strip-shaped mounting groove, the spring is sleeved on the periphery of the vertical fixing rod, the movable sleeve block is slidably sleeved on the periphery of the vertical fixing rod, and the pressing block is fixedly connected to the side of the overlapping slider.

[0008] Furthermore, a guide slide groove is transversely opened on the side of the installation frame, guide slide blocks are fixedly connected to both side surfaces of the movable frame, and a rocking disc is fixedly connected to one end of the bidirectional threaded rod.

[0009] Furthermore, the upper end of the limit rod is inserted into the inner wall of the limit hole, and the inner diameter of the limit hole is matched with the designed outer diameter of the limit rod.

[0010] Furthermore, the guide sliding block is slidably connected to the inner wall of the guide sliding groove, and the design size of the guide sliding block is matched with the opening size of the guide sliding groove.

[0011] Furthermore, the upper end of the spring is fixedly connected to the lower end surface of the moving sleeve block, and the lower end of the spring is fixedly connected to the end wall of the strip-shaped placement groove.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a bearing seat, so that the shaft rotating rod can better drive the disc to rotate in the later stage, so that the core shaft clamped by the two grinding discs can be rotated in the later stage, so that the grinding position can be changed by rotation, avoiding the cumbersomeness caused by disassembly and reinstallation; and during the period, a limiting mechanism is provided, so that the shaft rotating rod can be limited accordingly, so that it can be fixed when it does not need to rotate, avoiding self-rotation during grinding and affecting the grinding operation, thereby achieving a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0015] Figure 2 This is a structural side view of an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the moving frame and the bearing seat in one embodiment of the utility model;

[0017] Figure 4 This is an embodiment of the utility model Figure 3 A magnified view of the structure at center.

[0018] In the figure: 1. mounting plate; 2. mounting frame; 3. movable frame; 4. bearing seat; 5. shaft rotating rod; 6. round plate; 7. frosting plate; 8. bidirectional threaded rod; 9. threaded cylinder; 10. rectangular opening; 11. strip placement groove; 12. vertical fixing rod; 13. spring; 14. movable sleeve block; 15. overlapping slider; 16. limit plug rod; 17. limit plug hole; 18. pressing block; 19. guide slide groove; 20. guide slider; 21. rocking plate. DETAILED DESCRIPTION

[0019] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0020] Example

[0021] like Figure 1-Figure 4 As shown, a fixing device for core shaft grinding proposed by an embodiment of the utility model comprises a mounting plate 1, a mounting frame 2 and a movable frame 3, wherein the mounting frame 2 is fixedly mounted on the upper end surface of the mounting plate 1, the movable frame 3 is slidably connected to the inside of the mounting frame 2, a bearing seat 4 is fixedly mounted on the upper end of the movable frame 3, the movable frame 3 is rotatably connected to an axial rotating rod 5 through the bearing seat 4, the end of the axial rotating rod 5 is fixedly connected to a disc 6, a bidirectional threaded rod 8 is rotatably mounted on the inside of the mounting frame 2 through a bearing, a threaded barrel 9 is threadedly sleeved on the outer periphery of the bidirectional threaded rod 8, and the threaded barrel 9 is mounted on the movable frame 3, the movable frame 3 and the axial rotating rod 5 are fixedly mounted, and the movable frame 3 and the axial rotating rod 5 are fixedly mounted. A limiting mechanism is connected between them; the limiting mechanism includes a rectangular opening 10 opened on the side of the movable frame 3, the inner side wall of the rectangular opening 10 is provided with a strip placement groove 11, the inner wall of the strip placement groove 11 is slidably connected with a movable sleeve block 14, and an overlapping slider 15 is fixedly connected between the two movable sleeve blocks 14, and the upper end surface of the overlapping slider 15 is fixedly connected to a limiting plug rod 16, and a limiting hole 17 is provided on the periphery of one end of the shaft rotating rod 5, and four limiting holes 17 are evenly provided, the upper end of the limiting plug rod 16 is inserted into the inner wall of the limiting hole 17, and the inner diameter of the limiting hole 17 is matched with the designed outer diameter of the limiting plug rod 16.

[0022] Furthermore, the limiting mechanism also includes a vertical fixing rod 12, a spring 13 and a pressing block 18, the vertical fixing rod 12 is fixedly connected between the two end walls of the strip placement groove 11, the spring 13 is sleeved on the periphery of the vertical fixing rod 12, the movable sleeve block 14 is slidably sleeved on the periphery of the vertical fixing rod 12, the pressing block 18 is fixedly connected to the side of the overlapping slider 15, the upper end of the spring 13 is fixedly connected to the lower end surface of the movable sleeve block 14, and the lower end of the spring 13 is fixedly connected to the end wall of the strip placement groove 11.

[0023] Among them, by setting the vertical fixing rod 12 and the spring 13, the overlapping slider 15 can better cooperate with the vertical fixing rod 12 and the movable sleeve block 14 when not subjected to force and reset under the rebound force of the spring 13, so that the upper end of the limit plug rod 16 is reset and inserted into the inner wall of the limit plug hole 17, avoiding the later rotation of the shaft rod 5 and achieving the limiting effect.

[0024] Furthermore, a guide slide groove 19 is transversely opened on the side of the installation frame 2, and guide slide blocks 20 are fixedly connected to the two side surfaces of the movable frame 3. A rocking plate 21 is fixedly connected to one end of the bidirectional threaded rod 8. The guide slide block 20 is slidably connected to the inner wall of the guide slide groove 19, and the design size of the guide slide block 20 is compatible with the opening size of the guide slide groove 19.

[0025] Among them, by providing the guide slide groove 19 and the guide slide block 20, the bidirectional threaded rod 8 will not let the movable frame 3 rotate along with it during rotation, and this can effectively guide the movement of the movable frame 3 to achieve better usage requirements.

[0026] The working principle of the utility model is as follows: when the fixing device for grinding the mandrel is in use, the bidirectional threaded rod 8 is firstly shaken by the shaking disk 21, so that the two moving frames 3 are unfolded, and then the mandrel to be fixed is horizontally placed between the two moving frames 3, and then the shaking disk 21 is rotated in the opposite direction, so that the two moving frames 3 are relatively moved and the mandrel is clamped, so as to achieve the final fixing effect of the mandrel; and only the corresponding grinding is needed in the later stage; and when the mandrel needs to be rotated during grinding, it is only necessary to press the pressing block 18 downward, so that the overlapping slider 15 drives the limiting plug rod 16 and the upper end of the limiting plug rod 16 is pulled out from the inner wall of the limiting plug hole 17, and then the disc 6 is rotated 90 degrees. If 90 degrees is not suitable, it can also be rotated 180 degrees and 270 degrees; once the rotation is completed, the pressing force on the pressing block 18 is released, so that the upper end of the limiting plug rod 16 is reset and inserted into the inner wall of the limiting plug hole 17 again.

[0027] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fixing device for mandrel grinding, comprising a mounting plate (1), a mounting frame (2) and a movable frame (3), wherein the mounting frame (2) is fixedly mounted on the upper end surface of the mounting plate (1), and the movable frame (3) is slidably connected to the inside of the mounting frame (2), characterized in that: A bearing seat (4) is fixedly mounted on the upper end of the movable frame (3); the movable frame (3) is rotatably connected to a shaft rotating rod (5) via the bearing seat (4); a disc (6) is fixedly connected to the end of the shaft rotating rod (5); a bidirectional threaded rod (8) is rotatably mounted inside the mounting frame (2) via a bearing; a threaded barrel (9) is threadedly sleeved on the outer periphery of the bidirectional threaded rod (8); and the threaded barrel (9) is mounted on the movable frame (3); and a limiting mechanism is connected between the movable frame (3) and the shaft rotating rod (5); The limiting mechanism comprises a rectangular opening (10) provided on the side of the movable frame (3); the inner side wall of the rectangular opening (10) is provided with a strip placement groove (11); the inner wall of the strip placement groove (11) is slidably connected with a movable sleeve block (14); a lap slide block (15) is fixedly connected between two movable sleeve blocks (14); a limiting insertion rod (16) is fixedly connected to the upper end surface of the lap slide block (15); a limiting insertion hole (17) is provided on the periphery of one end of the shaft rotating rod (5), and four limiting insertion holes (17) are evenly provided.

2. A fixing device for mandrel grinding according to claim 1, characterized in that: The limiting mechanism also includes a fixing rod (12), a spring (13) and a pressing block (18); the fixing rod (12) is fixedly connected between the two end walls of the strip-shaped placement groove (11); the spring (13) is sleeved on the periphery of the fixing rod (12); the movable sleeve block (14) is slidably sleeved on the periphery of the fixing rod (12); and the pressing block (18) is fixedly connected to the side of the overlapping slider (15).

3. A fixing device for mandrel grinding according to claim 1, characterized in that: A guide slide groove (19) is transversely provided on the side of the installation frame (2), guide slide blocks (20) are fixedly connected to the two side surfaces of the movable frame (3), and a rocking disc (21) is fixedly connected to one end of the bidirectional threaded rod (8).

4. A fixing device for mandrel grinding according to claim 1, characterized in that: The upper end of the limiting plug rod (16) is inserted into the inner wall of the limiting plug hole (17), and the inner diameter of the limiting plug hole (17) is adapted to the designed outer diameter of the limiting plug rod (16).

5. A fixing device for mandrel grinding according to claim 3, characterized in that: The guide slide block (20) is slidably connected to the inner wall of the guide slide groove (19), and the design size of the guide slide block (20) is mutually adapted to the opening size of the guide slide groove (19).

6. A fixing device for mandrel grinding according to claim 2, characterized in that: The upper end of the spring (13) is fixedly connected to the lower end surface of the moving sleeve block (14), and the lower end of the spring (13) is fixedly connected to the end wall of the strip-shaped placement groove (11).

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