Grinding machine for machining pin shaft

Abstract

The utility model belongs to the technical field of pin shaft machining, and particularly relates to a pin shaft machining grinding machine which comprises a grinding machine body, and a servo motor is fixedly connected into the grinding machine body. The output end of the servo motor is fixedly connected with a screw rod; the lead screw is rotationally connected to the grinding machine body. The middle of the lead screw is in threaded connection with a supporting base. A grinding disc is mounted on the side wall of the supporting seat; a vertical plate is fixedly connected to the middle of the grinding machine body. A placing rod is fixedly connected to the side wall of the vertical plate; a plurality of clamping plates are rotationally connected to the middle part of the placing rod; external threads are formed in the surfaces of the clamping plates; the end part of the clamping plate is fixedly connected with a limiting plate; the limiting plate is arranged in an arc shape; when the pin shaft is fixed through the clamping plates and the threaded sleeves, the pin shaft can be rapidly fixed through rotation after the pin shaft is placed, fixing of the pin shaft is accelerated, meanwhile, the arc shape of the limiting plate can be better attached to the outer wall of the pin shaft when making contact with the pin shaft, and therefore the stability of the pin shaft in the fixing process is improved.

Description

Technical Field

[0001] This utility model relates to the field of pin machining technology, specifically a pin machining grinding machine. Background Technology

[0002] A pin is a cylindrical mechanical part that serves to connect, position, or transmit power. It typically uses a through-hole system to achieve hinge or fixation between components. Despite its simple structure, it is indispensable in engineering machinery, automobile chassis, agricultural equipment, and other applications. Common types include shouldered pins, cotter pins, and flexible pins.

[0003] In the pin machining process, grinding usually occurs after turning. The journal, chamfer and other parts are finely treated by belt grinder or polishing machine to eliminate turning marks, control the surface roughness to Ra1.6-0.8μm, and ensure that the perpendicularity tolerance of the mating shoulder is ≤0.03mm, laying the foundation for subsequent assembly or heat treatment.

[0004] When machining and polishing the pin, it is first fixed and then polished with a grinding machine. When fixing the pin, because the pin is cylindrical and the surface is relatively smooth, it is difficult to fix it quickly.

[0005] Therefore, a pin shaft machining grinding machine is proposed to address the above problems. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A pin-shaft machining grinding machine of this utility model includes a grinding machine body, a servo motor fixedly connected inside the grinding machine body; a lead screw fixedly connected to the output end of the servo motor; the lead screw is rotatably connected to the grinding machine body; a support seat is threadedly connected to the middle of the lead screw; a grinding disc is installed on the side wall of the support seat; a vertical plate is fixedly connected to the middle of the grinding machine body; a placement rod is fixedly connected to the side wall of the vertical plate; multiple clamping plates are rotatably connected to the middle of the placement rod; external threads are formed on the surface of the clamping plates; a limiting plate is fixedly connected to the end of the clamping plate; the limiting plate is arc-shaped; a threaded sleeve is threadedly connected to the middle of the clamping plate; when fixing the pin shaft by using the clamping plates and threaded sleeve, the pin shaft can be quickly fixed by rotation after placement, thus accelerating the fixing of the pin shaft. Simultaneously, the arc shape of the limiting plate allows it to fit more closely to the outer wall of the pin shaft when in contact, thereby increasing the stability of the pin shaft during fixing.

[0008] Preferably, the threaded sleeve has multiple baffles rotatably connected inside; the threaded sleeve has multiple forward rotation slots on its side wall; the threaded sleeve has multiple reverse rotation slots on its other side; the forward rotation slots and reverse rotation slots are correspondingly arranged with the baffles and located on both sides of the baffles; a pair of fixing plates are arranged on both sides of the threaded sleeve; multiple retaining plates are fixedly connected to the side wall of the fixing plates; the fixing plates and retaining plates are correspondingly arranged and slidably engaged; an installation rod is slidably connected to the middle of the threaded sleeve; the installation rod and the baffles are in contact; by using the reverse rotation slots and baffles, the rotation adjustment time can be reduced when rotating the threaded sleeve, allowing it to rotate quickly through the ratchet principle, thereby speeding up the fixing and disassembly of the pin.

[0009] Preferably, a friction pad is fixed to the inner wall of the limiting plate; the friction pad and the limiting plate are correspondingly arranged; by adding the friction pad, the stability between the pin and the limiting plate can be increased when the limiting plate is fixed.

[0010] Preferably, a handle is fixed to the top of the mounting rod; the handle and the mounting rod are correspondingly provided; by adding a handle, the combination of the handle and the mounting rod can make it easier to fix the clamp plate by using the threaded sleeve when operating the mounting rod.

[0011] Preferably, a magnet is fixed to the end of the placement rod; the magnet and the placement rod are correspondingly arranged; by adding a magnet, the pin can be attracted and fixed when it comes into contact with the magnet, which speeds up the stabilization on the placement rod, thereby reducing the fixing time of the pin.

[0012] Preferably, a spring is fixed between the clamping plate and the placement rod; multiple springs are provided on the placement rod; by adding springs, the pin can be quickly clamped by the tension of the springs after the pin is fixed, so that it is initially clamped and fixed before the pin is fixed.

[0013] The advantages of this utility model are:

[0014] 1. The pin shaft processing grinding machine of this utility model can quickly fix the pin shaft by rotating it after it is placed by using a clamping plate and a threaded sleeve to fix the pin shaft, thereby speeding up the fixing of the pin shaft. At the same time, the arc shape of the limiting plate can fit more closely to the outer wall of the pin shaft when in contact with it, thereby increasing the stability of fixing the pin shaft.

[0015] 2. The pin shaft processing grinding machine of this utility model can reduce the rotation adjustment time when rotating the threaded sleeve by using a reversing slot and a baffle, so as to make the threaded sleeve rotate quickly through the ratchet principle, thereby speeding up the fixing and disassembly of the pin shaft. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the rod placement in this utility model;

[0019] Figure 3 This is a schematic diagram of the handle structure in this utility model;

[0020] Figure 4 This is a schematic diagram of the threaded sleeve in this utility model;

[0021] Figure 5 This is a schematic diagram of the spring structure in this utility model.

[0022] In the diagram: 1. Grinding machine body; 11. Servo motor; 12. Lead screw; 13. Support base; 14. Grinding disc; 15. Vertical plate; 16. Placement rod; 17. Clamping plate; 18. Limiting plate; 19. Threaded sleeve; 21. Baffle; 22. Forward rotation slot; 23. Reverse rotation slot; 24. Fixing plate; 25. Clamping plate; 26. Mounting rod; 3. Friction pad; 4. Handle; 5. Magnet; 6. Spring. Detailed Implementation

[0023] 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 scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a pin shaft machining grinding machine includes a grinding machine body 1. A servo motor 11 is fixedly connected inside the grinding machine body 1. A lead screw 12 is fixedly connected to the output end of the servo motor 11. The lead screw 12 is rotatably connected to the grinding machine body 1. A support seat 13 is threadedly connected to the middle of the lead screw 12. A grinding disc 14 is installed on the side wall of the support seat 13. A vertical plate 15 is fixedly connected to the middle of the grinding machine body 1. A placement rod 16 is fixedly connected to the side wall of the vertical plate 15. A plurality of clamping plates 17 are rotatably connected to the middle of the placement rod 16. The surface of the clamping plate 17 is provided with external threads. A limiting plate 18 is fixedly connected to the end of the clamping plate 17. The limiting plate 18 is arc-shaped. A threaded sleeve 19 is threadedly connected to the middle of the clamping plate 17. During operation, through... First, place the end of the pin on the end of the placement rod 16, and then use the threaded sleeve 19 to gradually rotate it so that it moves on the clamping plate 17. During the movement, the clamping plate 17 will be gradually pushed closer to the placement rod 16. At the same time, the limiting plate 18 will move closer to the pin to clamp it. After clamping, the servo motor 11 drives the lead screw 12 to rotate. During the rotation, the support seat 13 will drive the grinding disc 14 to move closer to the pin. Once it is close, it can be ground. When the pin is fixed by using the clamping plate 17 and the threaded sleeve 19, the pin can be quickly fixed by rotating it after placement, which speeds up the fixing of the pin. At the same time, the arc shape of the limiting plate 18 can fit more closely to the outer wall of the pin when in contact with it, thereby increasing the stability of fixing the pin.

[0026] like Figures 1 to 4As shown, the threaded sleeve 19 has multiple baffles 21 rotatably connected inside; multiple forward rotation slots 22 are opened on the side wall of the threaded sleeve 19; multiple reverse rotation slots 23 are opened on the other side of the threaded sleeve 19; the forward rotation slots 22 and reverse rotation slots 23 are correspondingly arranged with the baffles 21 and located on both sides of the baffles 21; a pair of fixing plates 24 are arranged on both sides of the threaded sleeve 19; multiple retaining plates 25 are fixedly connected to the side wall of the fixing plates 24; the fixing plates 24 and retaining plates 25 are correspondingly arranged and slidably engaged; an installation rod 26 is slidably connected to the middle of the threaded sleeve 19; the installation rod 26 and the baffles 21 are in contact; during operation, when rotating the threaded sleeve 19 to install the pin, the retaining plate 25 on one side can be inserted into the reverse rotation slot 23. When the screw is inside the slot 23, the mounting rod 26 is first rotated counterclockwise, which pushes the baffles 21 on both sides. Then, when it passes a pair of baffles 21, the mounting rod 26 is rotated clockwise so that it abuts against the baffles 21 and pushes the threaded sleeve 19 to rotate. When the baffles 21 are abutted, the reverse slot 23 will block the baffles 21 so that they will not rotate, thereby pushing the threaded sleeve 19 to rotate. When disassembling the pin, the other side upright plate 15 is inserted into the forward slot 22, and then the other side retaining plate 25 is pulled out of the reverse slot 23. Then, the above steps are reversed. By using the reverse slot 23 and the baffles 21, the rotation adjustment time when rotating the threaded sleeve 19 can be reduced, so that the threaded sleeve 19 can be rotated quickly through the ratchet principle, thereby speeding up the fixing and disassembly of the pin.

[0027] like Figure 5 As shown, a friction pad 3 is fixed to the inner wall of the limiting plate 18; the friction pad 3 and the limiting plate 18 are correspondingly arranged; during operation, when the clamping plate 17 fixes the pin, the friction pad 3 will be located at the end of the limiting plate 18 and the pin, and when the end contacts the friction pad 3, it will increase the friction between the pin and the limiting plate 18; by adding the friction pad 3, the stability between the pin and the limiting plate 18 can be increased when the limiting plate 18 is fixed.

[0028] like Figures 3 to 4 As shown, a handle 4 is fixedly attached to the top of the mounting rod 26; the handle 4 and the mounting rod 26 are correspondingly arranged; during operation, when moving the mounting rod 26, holding the handle 4 increases the contact with the mounting rod 26, allowing for quick operation of the pin shaft; when using the mounting rod 26, the handle 4 and the mounting rod 26 together form a handle, thereby increasing the contact area between the user and their hand, thus allowing for quick operation of the threaded sleeve 19; by adding the handle 4, the combination of the handle 4 and the mounting rod 26 allows for faster contact when using the threaded sleeve 19 to fix the clamp 17.

[0029] like Figure 2As shown, a magnet 5 is fixed to the end of the placement rod 16; the magnet 5 and the placement rod 16 are correspondingly arranged; during operation, when the pin is placed on the placement rod 16, the magnet 5 will magnetically attract the pin so that it is attracted upon contact, thereby increasing the stability during placement, and then speeding up the fixing speed of the pin when fixing it; by adding the magnet 5, the pin can be attracted and fixed as soon as it comes into contact with the magnet 5, thus accelerating its stability on the placement rod 16 and reducing the fixing time of the pin.

[0030] like Figure 5 As shown, a spring 6 is fixed between the clamping plate 17 and the placement rod 16; multiple springs 6 are provided on the placement rod 16; during operation, when the clamping plate 17 is opened, the spring 6 will be pulled by the clamping plate 17, and will extend during the pulling to increase its tension. Then, when the clamping plate 17 is released after the pin is installed, the spring 6 will immediately rebound to clamp the pin, thus initially clamping it; by adding spring 6, the pin can be quickly clamped by the tension of the spring 6 after the pin is installed, thus initially clamping and fixing it before fixing the pin.

[0031] Working principle: First, the end of the pin is placed on the end of the placement rod 16, and then the threaded sleeve 19 is gradually rotated to move it on the clamping plate 17. During the movement, the clamping plate 17 is gradually pushed closer to the placement rod 16, and at the same time, the limiting plate 18 moves closer to the pin to clamp it. After clamping, the servo motor 11 drives the lead screw 12 to rotate. During the rotation, the support seat 13 drives the grinding disc 14 to move closer to the pin. Once it is close, it can be ground. The threaded sleeve 19 is rotated to install the pin. When disassembling the shaft, insert one side of the retaining plate 25 into the reversing slot 23. When inserted into the reversing slot 23, rotate the mounting rod 26 counterclockwise, which will push the baffles 21 on both sides. Then, when passing a pair of baffles 21, rotate the mounting rod 26 clockwise so that it abuts against the baffles 21 and pushes the threaded sleeve 19 to rotate. When the baffles 21 are abutted, the reversing slot 23 will block the baffles 21, preventing them from rotating, thereby pushing the threaded sleeve 19 to rotate. When disassembling the pin shaft, insert the other side of the upright plate 15 into the forward rotation slot 22. Then, pull out the other side plate 25 from the reverse slot 23, and then reverse the above steps. When the clamping plate 17 fixes the pin, the friction pad 3 will be located at the end of the limiting plate 18 and the pin. When the end contacts the friction pad 3, it will increase the friction between the pin and the limiting plate 18. When moving the mounting rod 26, holding the handle 4 can increase the contact with the mounting rod 26, so that it can quickly operate the pin. Then, when using the mounting rod 26, the handle 4 and the mounting rod 26 can be used to operate the pin. The contact area between the user and their hand is increased to allow for quick operation of the threaded sleeve 19; when the pin is placed on the placement rod 16, the magnet 5 will magnetically attract the pin, making it attracted upon contact, thereby increasing the stability during placement, and then accelerating the fixing speed of the pin; when the clamp 17 opens, the spring 6 will be pulled by the clamp 17, and will extend during the pulling to increase the pulling force, and then immediately rebound when the clamp 17 is released after the pin is installed, thus clamping the pin and initially holding it.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A pin-shaft machining grinding machine, characterized in that: The machine includes a grinding machine body (1), a servo motor (11) is fixedly connected inside the grinding machine body (1); a lead screw (12) is fixedly connected to the output end of the servo motor (11); the lead screw (12) is rotatably connected to the grinding machine body (1); a support seat (13) is threadedly connected to the middle of the lead screw (12); a grinding disc (14) is installed on the side wall of the support seat (13); a vertical plate (15) is fixedly connected to the middle of the grinding machine body (1); a placement rod (16) is fixedly connected to the side wall of the vertical plate (15); a plurality of clamping plates (17) are rotatably connected to the middle of the placement rod (16); the surface of the clamping plate (17) is provided with external threads; a limit plate (18) is fixedly connected to the end of the clamping plate (17); the limit plate (18) is arc-shaped; and a threaded sleeve (19) is threadedly connected to the middle of the clamping plate (17).

2. The pin-shaft machining grinding machine according to claim 1, characterized in that: The threaded sleeve (19) is rotatably connected to multiple baffles (21); the threaded sleeve (19) has multiple forward rotation slots (22) on its side wall; the threaded sleeve (19) has multiple reverse rotation slots (23) on its other side; the forward rotation slots (22) and reverse rotation slots (23) are correspondingly arranged with the baffles (21) and located on both sides of the baffles (21); a pair of fixing plates (24) are arranged on both sides of the threaded sleeve (19); multiple clamping plates (25) are fixedly connected to the side wall of the fixing plates (24); the fixing plates (24) and clamping plates (25) are correspondingly arranged and slidably engaged; an installation rod (26) is slidably connected to the middle of the threaded sleeve (19); the installation rod (26) and the baffles (21) are in contact.

3. A pin-shaft machining grinding machine according to claim 2, characterized in that: The inner wall of the limiting plate (18) is fixed with a friction pad (3); the friction pad (3) and the limiting plate (18) are configured accordingly.

4. A pin-shaft machining grinding machine according to claim 3, characterized in that: The top of the mounting rod (26) is fixed with a handle (4); the handle (4) and the mounting rod (26) are configured accordingly.

5. A pin-shaft machining grinding machine according to claim 4, characterized in that: A magnet (5) is fixed to the end of the placement rod (16); the magnet (5) and the placement rod (16) are arranged correspondingly.

6. A pin-shaft machining grinding machine according to claim 5, characterized in that: A spring (6) is fixed between the clamp (17) and the placement rod (16); multiple springs (6) are provided on the placement rod (16).

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