Transmission shaft surface polishing clamp

Abstract

The utility model discloses a transmission shaft surface grinding clamp, and relates to the technical field of grinding clamps. The transmission shaft comprises a base and a transmission shaft body, a position adjusting mechanism is arranged at the top of the base, a U-shaped frame is fixedly installed at the top end of a movable part of the position adjusting mechanism, and an opening and closing mechanism is arranged on one side wall of the U-shaped frame. The two sets of V-shaped clamping blocks are far away from each other through the opening and closing mechanism, the balls are attached to the transmission shaft body under the elastic force action of the elastic assembly, the distance between the two sets of U-shaped frames is adjusted through the position adjusting mechanism, and the transmission shaft body can move conveniently through the balls; and the two sets of V-shaped clamping blocks are driven to get close to each other through the opening and closing mechanism so that the middle of the transmission shaft body can be clamped and fixed, and then the surface, close to the end, of the transmission shaft body can be conveniently polished.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding fixtures, in particular to a transmission shaft surface grinding fixture. Background Art

[0002] Drive shaft grinding refers to the process of surface treatment of the drive shaft to repair its surface wear or unevenness. This is usually because the drive shaft may be worn, corroded or damaged during use, resulting in an uneven or bumpy surface. Grinding the drive shaft can restore its surface flatness and improve its service life and performance.

[0003] The Chinese patent with the announcement number CN213858406U discloses a cylindrical surface grinder for transmission shaft production, including a workbench, a fixed seat, a driving mechanism, a first fixed fixture, a second fixed fixture, a movable seat, an adjustment mechanism, two sets of lead screws, a movable frame, a hydraulic cylinder, a movable shaft, a grinding mechanism, a collection box, a collection bucket, a filter bag and a fan;

[0004] With respect to the above-mentioned disclosed technology, the existing method of grinding the transmission shaft is often to clamp and fix the end of the transmission shaft through a three-jaw chuck. It is difficult to grind the surface close to the end of the transmission shaft during grinding, and thus the transmission shaft needs to be removed from the fixture, the middle surface of the transmission shaft needs to be clamped, and then the surface close to the end of the transmission shaft needs to be grinded. This is more troublesome during operation and is not convenient for comprehensive and rapid grinding of the surface of the transmission shaft.

[0005] For this reason, a transmission shaft surface grinding fixture is proposed. Utility Model Content

[0006] The purpose of the utility model is to solve the problems raised in the above background technology, and the utility model provides a transmission shaft surface grinding fixture.

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A transmission shaft surface grinding fixture comprises a base and a transmission shaft body, wherein a position adjustment mechanism is arranged on the top of the base, a U-shaped frame is fixedly installed on the top of the movable part of the position adjustment mechanism, an opening and closing mechanism is arranged on one side wall of the U-shaped frame, a V-clamping block is fixedly installed on the movable part of the opening and closing mechanism, an elastic component is arranged on the inclined surface of the V-clamping block, and a ball is rollingly installed on the end of the elastic component.

[0009] Furthermore, the position adjustment mechanism includes a groove, the top surface of the base is provided with a groove, the left and right side walls of the base are rotatably plugged with a first bidirectional screw, the right end of the first bidirectional screw is fixedly installed with a first knob, the surface thread sleeve of the first bidirectional screw is provided with a movable frame, and the top surface of the movable frame is fixedly installed with a U-shaped frame.

[0010] Furthermore, the opening and closing mechanism includes a protrusion, a side wall of the U-shaped frame is fixedly mounted with the protrusion, and a second bidirectional screw is rotatably inserted inside the protrusion, and a sprocket is fixedly mounted on the rear end of the second bidirectional screw, and a chain is meshingly mounted on the surface of the sprocket, and a second knob is fixedly sleeved on the front end of the second bidirectional screw on the upper side, a movable block is threadedly sleeved on the surface of the second bidirectional screw, and a V-clamping block is fixedly mounted on the end face of the movable block.

[0011] Furthermore, the elastic component includes a stepped hole, the inclined surface of the V-clamping block is provided with a stepped hole, a spring is fixedly installed inside the stepped hole, and a movable plate is fixedly installed at the other end of the spring, a convex shaft is fixedly installed on the surface of the movable plate, and a ball is rollingly installed on the end surface of the convex shaft.

[0012] Furthermore, when the transmission shaft body is clamped, the ball and the surface of the transmission shaft body are fitted together, at which time the ball is located inside the stepped hole, and the inclined surface of the V clamping block is fitted together with the surface of the transmission shaft body.

[0013] Furthermore, the groove is arranged in a convex structure, and the bottom end of the movable frame is also arranged in a convex structure, and the bottom end of the movable frame is arranged in a sliding installation inside the groove.

[0014] The beneficial effects of the utility model are as follows:

[0015] The spacing between the U-shaped frames on both sides is adjusted by the position adjustment mechanism, so that the transmission shaft body to be clamped is located inside the V clamping block, and the two groups of V clamping blocks are brought closer to each other by the opening and closing mechanism, so that the ball is fitted with the surface of the transmission shaft body, so that the elastic component is compressed, and the inclined surface of the V clamping block is fitted with the surface of the transmission shaft body, so that the end of the transmission shaft body is fixedly clamped;

[0016] The two groups of V-clamping blocks are moved away from each other through the opening and closing mechanism, the ball bearings are fitted with the transmission shaft body under the elastic force of the elastic component, the distance between the two groups of U-shaped frames is adjusted through the position adjustment mechanism, the movement of the transmission shaft body is facilitated by the ball bearings, and the U-shaped frame is moved to the middle part of the transmission shaft body, and the two groups of V-clamping blocks are driven close to each other through the opening and closing mechanism to clamp and fix the middle part of the transmission shaft body, thereby facilitating the grinding of the surface of the transmission shaft body near the end. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 It is a side view of the utility model;

[0019] Figure 3 It is a partial side sectional view of the utility model;

[0020] Figure 4 This utility model Figure 3 A magnified view of part A;

[0021] Figure numerals: 1. base; 2. position adjustment mechanism; 201. groove; 202. first bidirectional screw; 203. first knob; 204. movable frame; 3. U-shaped frame; 4. opening and closing mechanism; 401. protrusion; 402. second bidirectional screw; 403. sprocket; 404. chain; 405. second knob; 406. movable block; 5. V-clamping block; 6. elastic component; 601. stepped hole; 602. spring; 603. movable plate; 604. convex shaft; 7. ball; 8. transmission shaft body. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0024] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] like Figures 1 to 4 As shown, a transmission shaft surface grinding fixture includes a base 1 and a transmission shaft body 8. A position adjustment mechanism 2 is provided on the top of the base 1. A U-shaped frame 3 is fixedly installed on the top of the movable part of the position adjustment mechanism 2, and an opening and closing mechanism 4 is provided on one side wall of the U-shaped frame 3. A V-clamping block 5 is fixedly installed on the movable part of the opening and closing mechanism 4, and an elastic component 6 is provided on the inclined surface of the V-clamping block 5. A ball 7 is rollingly installed on the end of the elastic component 6. More specifically, when the transmission shaft body 8 is fixed, the spacing between the U-shaped frames 3 on both sides is adjusted by the position adjustment mechanism 2, so that the transmission shaft body 8 to be clamped is located inside the V-clamping block 5, and the two groups of V-clamping blocks 5 are brought close to each other by the opening and closing mechanism 4, so that the ball 7 fits with the surface of the transmission shaft body 8, so that the elastic component 6 is compressed, and the inclined surface of the V-clamping block 5 fits with the surface of the transmission shaft body 8, so that the end of the transmission shaft body 8 is fixedly clamped. After the surface of the transmission shaft body 8 is polished, the V-clamping block 5 is pressed against the surface of the transmission shaft body 8. The two groups of V-clamping blocks 5 are moved away from each other through the opening and closing mechanism 4, and the ball 7 is fit with the transmission shaft body 8 under the elastic force of the elastic component 6. The distance between the two groups of U-shaped frames 3 is adjusted through the position adjustment mechanism 2. The ball 7 facilitates the movement of the transmission shaft body 8, so that the U-shaped frame 3 moves to the middle part of the transmission shaft body 8. The opening and closing mechanism 4 drives the two groups of V-clamping blocks 5 to approach each other to clamp and fix the middle part of the transmission shaft body 8, thereby facilitating the grinding of the surface of the transmission shaft body 8 near the end.

[0027] The position adjustment mechanism 2 includes a groove 201, the top surface of the base 1 is provided with the groove 201, the left and right side walls of the base 1 are rotatably plugged with first bidirectional screws 202, the right end of the first bidirectional screw 202 is fixedly installed with a first knob 203, the surface of the first bidirectional screw 202 is threadedly sleeved with a movable frame 204, and the top surface of the movable frame 204 is fixedly installed with a U-shaped frame 3. More specifically, the first bidirectional screw 202 is driven to rotate by the first knob 203, and the first bidirectional screw 202 and the movable frame 204 are threadedly plugged, so that the movable frame 204 moves laterally inside the groove 201, so that the two groups of U-shaped frames 3 can be moved closer or farther from each other, and the spacing between the two groups of U-shaped frames 3 can be adjusted conveniently.

[0028] The opening and closing mechanism 4 includes a protrusion 401, a side wall of the U-shaped frame 3 is fixedly installed with the protrusion 401, and a second bidirectional screw 402 is rotatably inserted inside the protrusion 401, and a sprocket 403 is fixedly installed at the rear end of the second bidirectional screw 402, and a chain 404 is meshed and installed on the surface of the sprocket 403, and a second knob 405 is fixedly sleeved at the front end of the upper second bidirectional screw 402, and a movable block 406 is threadedly sleeved on the surface of the second bidirectional screw 402, and a V clamping block 5 is fixedly installed on the end surface of the movable block 406. More specifically, the upper second bidirectional screw 402 and the sprocket 403 are driven to rotate by the second knob 405, and the lower second bidirectional screw 402 and the sprocket 403 are driven to rotate synchronously by the chain 404, and the two groups of V clamping blocks 5 are made to approach or move away from each other by the thread sleeve of the movable block 406 and the second bidirectional screw 402.

[0029] The elastic component 6 includes a stepped hole 601, and the inclined surface of the V clamping block 5 is provided with the stepped hole 601. A spring 602 is fixedly installed inside the stepped hole 601, and a movable plate 603 is fixedly installed at the other end of the spring 602. A convex shaft 604 is fixedly installed on the surface of the movable plate 603, and a ball 7 is rollingly installed on the end surface of the convex shaft 604. More specifically, the transmission shaft body 8 is clamped by two groups of V clamping blocks 5, and the two groups of V clamping blocks 5 are close to each other so that the ball 7 fits the surface of the transmission shaft body 8, so that the convex shaft 604 and the movable plate 603 are driven by the ball 7 to move inside the stepped hole 601, so as to compress the spring 602. When the position of the transmission shaft body 8 is adjusted, the two groups of V clamping blocks 5 are separated so that the ball 7 extends out from the stepped hole 601, so that the inclined surface of the V clamping block 5 is separated from the surface of the transmission shaft body 8, thereby facilitating the relative movement of the transmission shaft body 8 by the ball 7.

[0030] When the transmission shaft body 8 is clamped, the surface of the ball 7 and the transmission shaft body 8 are fitted, and at this time, the ball 7 is located inside the stepped hole 601, and the inclined surface of the V clamping block 5 is fitted with the surface of the transmission shaft body 8. More specifically, when the inclined surface of the V clamping block 5 fits with the surface of the transmission shaft body 8, the transmission shaft body 8 can be fixed. When the position of the transmission shaft body 8 is adjusted, the ball 7 extends out of the stepped hole 601 and fits with the surface of the transmission shaft body 8, so that the U-shaped frame 3 can move relative to the transmission shaft body 8.

[0031] The groove 201 is convex, and the bottom of the movable frame 204 is also convex, and the bottom of the movable frame 204 is slidably mounted inside the groove 201. More specifically, the bottom of the movable frame 204 is limited and guided by the groove 201.

[0032] In summary: when the transmission shaft body 8 is fixed, the spacing between the U-shaped frames 3 on both sides is adjusted through the position adjustment mechanism 2, so that the transmission shaft body 8 to be clamped is located inside the V clamping block 5, and the two groups of V clamping blocks 5 are brought close to each other through the opening and closing mechanism 4, so that the ball 7 fits with the surface of the transmission shaft body 8, so that the elastic component 6 is compressed, and the inclined surface of the V clamping block 5 fits with the surface of the transmission shaft body 8, so that the end of the transmission shaft body 8 is fixed and clamped. After the surface of the transmission shaft body 8 is polished, The opening and closing mechanism 4 allows the two groups of V-clamping blocks 5 to move away from each other, and the elastic force of the elastic component 6 makes the ball 7 fit with the transmission shaft body 8. The position adjustment mechanism 2 allows the spacing between the two groups of U-shaped frames 3 to be adjusted, and the ball 7 facilitates the movement of the transmission shaft body 8, so that the U-shaped frame 3 moves to the middle of the transmission shaft body 8. The opening and closing mechanism 4 drives the two groups of V-clamping blocks 5 to move closer to each other to clamp and fix the middle of the transmission shaft body 8, thereby facilitating the grinding of the surface of the transmission shaft body 8 near the end.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A transmission shaft surface grinding fixture, characterized in that: The invention comprises a base (1) and a transmission shaft body (8), wherein a position adjustment mechanism (2) is arranged on the top of the base (1), a U-shaped frame (3) is fixedly mounted on the top of the movable part of the position adjustment mechanism (2), an opening and closing mechanism (4) is arranged on one side wall of the U-shaped frame (3), a V-clamping block (5) is fixedly mounted on the movable part of the opening and closing mechanism (4), an elastic component (6) is arranged on the inclined surface of the V-clamping block (5), and a ball (7) is rollingly mounted on the end of the elastic component (6).

2. A transmission shaft surface grinding fixture according to claim 1, characterized in that: The position adjustment mechanism (2) comprises a groove (201), the top surface of the base (1) is provided with a groove (201), the left and right side walls of the base (1) are rotatably plugged with a first bidirectional screw (202), the right end of the first bidirectional screw (202) is fixedly mounted with a first knob (203), the surface of the first bidirectional screw (202) is threadedly sleeved with a movable frame (204), and the top surface of the movable frame (204) is fixedly mounted with a U-shaped frame (3).

3. The transmission shaft surface grinding fixture according to claim 1, characterized in that: The opening and closing mechanism (4) comprises a protrusion (401), a side wall of the U-shaped frame (3) is fixedly mounted with the protrusion (401), a second bidirectional screw (402) is rotatably inserted inside the protrusion (401), a sprocket (403) is fixedly mounted at the rear end of the second bidirectional screw (402), and a chain (404) is meshingly mounted on the surface of the sprocket (403), a second knob (405) is fixedly sleeved at the front end of the second bidirectional screw (402) on the upper side, a movable block (406) is threadedly sleeved on the surface of the second bidirectional screw (402), and a V-clamping block (5) is fixedly mounted on the end surface of the movable block (406).

4. A transmission shaft surface grinding fixture according to claim 1, characterized in that: The elastic component (6) comprises a stepped hole (601), the inclined surface of the V-clamping block (5) is provided with a stepped hole (601), a spring (602) is fixedly mounted inside the stepped hole (601), and a movable plate (603) is fixedly mounted on the other end of the spring (602), a convex shaft (604) is fixedly mounted on the surface of the movable plate (603), and a ball (7) is rollingly mounted on the end surface of the convex shaft (604).

5. A transmission shaft surface grinding fixture according to claim 4, characterized in that: When the transmission shaft body (8) is clamped, the surface of the ball (7) and the transmission shaft body (8) are arranged in a close fit, at which time the ball (7) is located inside the stepped hole (601), and the inclined surface of the V-clamping block (5) is arranged in a close fit with the surface of the transmission shaft body (8).

6. A transmission shaft surface grinding fixture according to claim 2, characterized in that: The groove (201) is arranged in a convex structure, and the bottom end of the movable frame (204) is also arranged in a convex structure, and the bottom end of the movable frame (204) is arranged in a sliding manner inside the groove (201).

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