A bolt polishing device

Abstract

The utility model discloses a bolt polishing device, including the bottom frame, the top fixedly connected with the polishing box of bottom frame, the inside fixedly connected with two guide rods of polishing box, and the outer wall of two guide rods all slidingly covers and sets up the sliding plate, and the bottom fixedly connected with the same bolt placing plate of two sliding plates. The utility model discloses the placement hole of bolt placing plate is limited to the bolt, and the cylinder drive push -on plate, transmission rod and sliding plate are moved along the guide rod, realize multiple bolt polishing, reduce the time cost of single processing, make the grinding wheel contact bolt top that servo motor drives through electric push rod drive U type board (by vertical pole direction), carry out end face burr removal and flatness correction, through the gear transmission of stepping motor, drive short axle and steel wire wheel rotation, polish the synchronous bolt lateral wall, complete the multi -position processing of end face and lateral wall, need not multiple clamping transfer.

Description

Technical Field

[0001] This utility model relates to the field of bolt grinding technology, and in particular to a bolt grinding device. Background Technology

[0002] Bolts require grinding during machining to eliminate surface defects. After initial processing such as cutting and forging, bolts often have burrs, flash, scale, and cutting marks remaining on their surface. These defects can not only scratch the hands of assembly workers but also cause thread jamming or even damage to the thread profile when mated with a nut. Grinding, using tools such as grinding wheels and polishing wheels, removes these defects, resulting in a smooth and flat bolt surface, laying the foundation for subsequent assembly.

[0003] In the existing technology, most grinding equipment can only complete the grinding of a single part, such as only processing the end face or only processing the rod. If the grinding of multiple parts of the bolt is to be completed, multiple clamping and transfer between different equipment are required, which greatly increases the complexity of the operation process and the time cost. It is also easy to introduce cumulative errors due to multiple positioning. Therefore, we propose a bolt grinding device to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bolt grinding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A bolt grinding device includes a base frame, a grinding box fixedly connected to the top of the base frame, two guide rods fixedly connected inside the grinding box, sliding plates slidably fitted on the outer walls of the two guide rods, a common bolt placement plate fixedly connected to the bottom of the two sliding plates, a plurality of placement holes evenly formed on the outer wall of the bolt placement plate, transmission rods fixedly connected to the outer walls of the two sliding plates, a common push plate fixedly connected to one end of the two transmission rods, a cylinder fixedly connected to the outer wall of the grinding box, the outer wall of the cylinder output end fixedly connected to the outer wall of the push plate, an electric push rod fixedly connected to the top of the grinding box, a U-shaped plate fixedly connected to the bottom of the output end of the electric push rod, a servo motor fixedly connected to the outer wall of the U-shaped plate, a grinding wheel fixedly fitted on the outer wall of the servo motor output shaft, and a grinding assembly inside the grinding box.

[0007] Preferably, the grinding assembly includes two short shafts. A stepper motor is fixedly connected inside the base frame. Two mounting holes are opened at the bottom of the grinding box. The inner walls of the two mounting holes are rotatably connected to the outer walls of the two short shafts respectively. Gears are fixedly sleeved on the outer walls of the two short shafts. The top of the output shaft of the stepper motor is fixedly connected to the bottom of one of the gears. The two gears are meshed together. Steel wire wheels are fixedly sleeved on the outer walls of the two short shafts. The grinding assembly drives the two short shafts and steel wire wheels to rotate synchronously. The high-speed rotation of the steel wire wheels is used to grind the burrs, oxide scale, etc. on the side wall of the bolt.

[0008] Preferably, the outer wall of the grinding box has two sliding holes, and the inner walls of the two sliding holes are slidably connected to the outer walls of the two transmission rods, respectively, so that the sliding holes assist the transmission rods to move stably.

[0009] Preferably, the top of the grinding box has a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the output end of the electric push rod, so that the through hole assists the electric push rod to move stably.

[0010] Preferably, the outer wall of the U-shaped plate has two circular holes, and the inner walls of the two circular holes are slidably connected with vertical rods. The tops of the two vertical rods are fixedly connected to the inner wall of the grinding box. The two vertical rods can provide vertical guidance for the up and down movement of the U-shaped plate and prevent the U-shaped plate from shifting forward or backward or left or right during the process of driving the grinding wheel to move down.

[0011] Preferably, bearing seats are fixedly fitted on the outer walls of both short shafts, and the outer rings of both bearing seats are fixedly connected to the inner wall of the grinding box. The two bearing seats assist the two short shafts in stable rotation.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution uses the placement holes of the bolt placement plate to limit the bolt position, and in conjunction with the cylinder-driven push plate, transmission rod and sliding plate to move along the guide rod, to achieve grinding of multiple bolts and reduce the time cost of processing a single bolt; the electric push rod drives the U-shaped plate (guided by the vertical rod) to move down, so that the grinding wheel driven by the servo motor contacts the top of the bolt to remove end face burrs and correct flatness; through the stepper motor and gear transmission, the short shaft and wire wheel are driven to rotate, and the bolt sidewall is ground simultaneously, completing the processing of multiple parts of the end face and sidewall without the need for multiple clamping and transportation. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.

[0015] Figure 1 This is a cross-sectional structural diagram of a bolt grinding device proposed in this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of a bolt grinding device proposed in this utility model;

[0017] Figure 3 This utility model proposes a bolt grinding device. Figure 1 A magnified structural diagram of part A in the diagram;

[0018] Figure 4 This is a partial three-dimensional structural diagram of a bolt grinding device proposed in this utility model.

[0019] In the diagram: 1. Base frame; 2. Grinding box; 3. Guide rod; 4. Sliding plate; 5. Bolt placement plate; 6. Transmission rod; 7. Push plate; 8. Cylinder; 9. Electric push rod; 10. U-shaped plate; 11. Vertical rod; 12. Servo motor; 13. Grinding wheel; 14. Stepper motor; 15. Short shaft; 16. Gear; 17. Wire wheel. Detailed Implementation

[0020] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, a bolt grinding device is disclosed, including a base frame 1. The outer wall of the base frame 1 has multiple strip-shaped ventilation holes. A grinding box 2 is fixedly connected to the top of the base frame 1. Two guide rods 3 are fixedly connected inside the grinding box 2. The guide rods 3 can provide guidance for the movement of the sliding plate 4, prevent the sliding plate 4 from shifting left and right when it drives the bolt placement plate 5 to move, and ensure that the bolt can be accurately moved to the grinding area below the grinding wheel 13.

[0022] The outer walls of the two guide rods 3 are slidably fitted with sliding plates 4. The bottom of the two sliding plates 4 is fixedly connected to the same bolt placement plate 5. The outer wall of the bolt placement plate 5 is evenly provided with multiple placement holes. The multiple placement holes are arranged in a single row, which can accommodate multiple bolts to be ground at one time, realizing batch positioning of bolts.

[0023] The outer walls of the two sliding plates 4 are fixedly connected to transmission rods 6. The outer wall of the grinding box 2 has two sliding holes. The inner walls of the two sliding holes are slidably connected to the outer walls of the two transmission rods 6 respectively. One end of the two transmission rods 6 is fixedly connected to the same push plate 7. The outer wall of the grinding box 2 is fixedly connected to a cylinder 8. The outer wall of the output end of the cylinder 8 is fixedly connected to the outer wall of the push plate 7. The push plate 7 evenly distributes the driving force of the cylinder 8 to the two transmission rods 6 to ensure that the two transmission rods 6 move synchronously, thereby driving the two sliding plates 4 and the bolt placement plate 5 to move smoothly, avoiding the component jamming or displacement due to unilateral force.

[0024] An electric push rod 9 is fixedly connected to the top of the grinding box 2. A through hole is opened on the top of the grinding box 2. The inner wall of the through hole is slidably connected to the outer wall of the output end of the electric push rod 9. A U-shaped plate 10 is fixedly connected to the bottom of the output end of the electric push rod 9. The electric push rod 9 drives the servo motor 12 and the grinding wheel 13 to move up and down synchronously, thereby adjusting the height of the grinding wheel 13.

[0025] Two circular holes are provided on the outer wall of the U-shaped plate 10. Vertical rods 11 are slidably connected to the inner walls of the two circular holes. The tops of the two vertical rods 11 are fixedly connected to the inner wall of the grinding box 2. The two vertical rods 11 can provide vertical guidance for the up and down movement of the U-shaped plate 10, preventing the U-shaped plate 10 from shifting forward or backward or left or right during the process of driving the grinding wheel 13 to move down. A servo motor 12 is fixedly connected to the outer wall of the U-shaped plate 10. A grinding wheel 13 is fixedly sleeved on the outer wall of the output shaft of the servo motor 12. The grinding wheel 13 can perform grinding operations on the top end face of the bolt, effectively removing burrs and flash from the end face.

[0026] The grinding box 2 is equipped with a grinding assembly, which includes two short shafts 15. The outer walls of the two short shafts 15 are fixedly fitted with bearing seats, and the outer rings of the two bearing seats are fixedly connected to the inner wall of the grinding box 2.

[0027] A stepper motor 14 is fixedly connected inside the bottom frame 1. Two mounting holes are opened at the bottom of the grinding box 2. The inner walls of the two mounting holes are rotatably connected to the outer walls of the two short shafts 15 respectively. Gears 16 are fixedly sleeved on the outer walls of the two short shafts 15. The top of the output shaft of the stepper motor 14 is fixedly connected to the bottom of one of the gears 16. When the stepper motor 14 drives one of the gears 16 to rotate, the other gear 16 rotates synchronously in the opposite direction, thereby driving the two short shafts 15 and the wire wheel 17 to rotate synchronously.

[0028] The two gears 16 are meshed together, and the outer walls of the two short shafts 15 are fixedly fitted with wire wheels 17. The two wire wheels 17 are in contact with the outer walls of multiple bolts. When the wire wheels 17 rotate at high speed, they can effectively clean the burrs, oxide scale and other impurities on the side walls of the bolts.

[0029] Working principle: During use, the bolts to be ground are placed one by one into the multiple placement holes opened on the outer wall of the bolt placement plate 5. The bolt head is located at the top of the bolt placement plate 5, and the placement hole matches the smooth surface of the bolt shank end. The threaded end of the bolt protrudes from the placement hole and is located below. Then, the cylinder 8 is started. The output end of the cylinder 8 pushes the push plate 7 to move to the right. The push plate 7 drives the two transmission rods 6 to move synchronously, which in turn drives the two sliding plates 4 to slide along the two guide rods 3. Finally, the bolt placement plate 5 and the bolts on the plate are moved to the grinding area below the grinding wheel 13. In subsequent grinding, the cylinder 8 reciprocates, driving multiple bolts to reciprocate, so as to facilitate the grinding of multiple bolts.

[0030] The electric push rod 9 is activated to move the U-shaped plate 10 downward. The two vertical rods 11 provide vertical guidance for the U-shaped plate 10 to prevent it from deviating during downward movement. When the grinding wheel 13 on the outer wall of the output shaft of the servo motor 12 on the U-shaped plate 10 contacts the top of the bolt to be ground, the electric push rod 9 is turned off. Then the servo motor 12 is activated. The output shaft of the servo motor 12 drives the grinding wheel 13 to rotate at high speed to grind the top end face of the bolt, remove the end face burrs, and correct the flatness and perpendicularity.

[0031] The stepper motor 14 inside the bottom frame 1 is started. The output shaft of the stepper motor 14 drives one of the gears 16 fixedly connected to it to rotate. Since the two gears 16 are meshed, the other gear 16 rotates synchronously in the opposite direction, which in turn drives the two short shafts 15 to rotate synchronously. When the short shafts 15 rotate, the bearing seat provides stable rotation support for them to avoid shaking when the short shafts 15 rotate. The rotation of the two short shafts 15 drives the two wire wheels 17 to rotate. The sidewalls of multiple bolts are in contact with the rotating wire wheels 17. The wire wheels 17 are used to grind the burrs, oxide scale and other parts of the bolt sidewalls, so as to achieve synchronous grinding of multiple parts of the bolt.

[0032] It should be noted that, in actual use, an existing PLC controller can be added. The PLC controller is electrically connected to cylinder 8, electric push rod 9, servo motor 12, and stepper motor 14 to facilitate overall control. Cylinder 8, electric push rod 9, servo motor 12, and stepper motor 14 are connected to an external power source via cables.

[0033] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

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

Claims

1. A bolt grinding device, comprising a base frame (1), characterized in that, A grinding box (2) is fixedly connected to the top of the bottom frame (1). Two guide rods (3) are fixedly connected inside the grinding box (2). Sliding plates (4) are slidably fitted on the outer walls of the two guide rods (3). The same bolt placement plate (5) is fixedly connected to the bottom of the two sliding plates (4). Multiple placement holes are evenly opened on the outer wall of the bolt placement plate (5). A transmission rod (6) is fixedly connected to the outer wall of the two sliding plates (4). The same push plate (7) is fixedly connected to one end of the two transmission rods (6). A cylinder (8) is fixedly connected to the outer wall of the grinding box (2). The outer wall of the output end of the cylinder (8) is fixedly connected to the outer wall of the push plate (7). An electric push rod (9) is fixedly connected to the top of the grinding box (2). A U-shaped plate (10) is fixedly connected to the bottom of the output end of the electric push rod (9). A servo motor (12) is fixedly connected to the outer wall of the U-shaped plate (10). A grinding wheel (13) is fixedly sleeved on the outer wall of the output shaft of the servo motor (12). A grinding assembly is provided inside the grinding box (2).

2. The bolt grinding device according to claim 1, characterized in that, The grinding assembly includes two short shafts (15). A stepper motor (14) is fixedly connected inside the bottom frame (1). The bottom of the grinding box (2) has two mounting holes. The inner walls of the two mounting holes are rotatably connected to the outer walls of the two short shafts (15). Gears (16) are fixedly fitted on the outer walls of the two short shafts (15). The top of the output shaft of the stepper motor (14) is fixedly connected to the bottom of one of the gears (16). The two gears (16) are meshed together. Steel wire wheels (17) are fixedly fitted on the outer walls of the two short shafts (15).

3. The bolt grinding device according to claim 1, characterized in that, The outer wall of the grinding box (2) has two sliding holes, and the inner walls of the two sliding holes are slidably connected to the outer walls of the two transmission rods (6).

4. The bolt grinding device according to claim 1, characterized in that, The top of the grinding box (2) is provided with a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the output end of the electric push rod (9).

5. A bolt grinding device according to claim 1, characterized in that, The outer wall of the U-shaped plate (10) has two round holes, and the inner walls of the two round holes are slidably connected with vertical rods (11). The tops of the two vertical rods (11) are fixedly connected to the inner wall of the grinding box (2).

6. A bolt grinding device according to claim 2, characterized in that, The outer walls of the two short shafts (15) are fixedly fitted with bearing seats, and the outer rings of the two bearing seats are fixedly connected to the inner wall of the grinding box (2).

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