CN217619488U - Centerless grinding machine for steel bar - Google Patents

Abstract

The utility model relates to a centerless grinding machine for steel bars, comprising a side plate, four brackets are fixedly arranged on the upper surface of the side plate, a working platform is fixedly arranged on the upper surface of the four brackets, and the center position of the working platform is A lead screw is movably arranged, a turntable is movably arranged at the end of the lead screw, a motor is fixedly arranged on the upper surface of the side plate, a motor main shaft is movably linked inside the motor, and a drive gear is fixedly connected to the end of the motor main shaft, The left and right gears are meshed on both sides of the drive gear, the left and right grinding wheel spindles are fixed at the center positions, and the other ends of the left grinding wheel spindle and the right grinding wheel spindle are movably provided with a left grinding wheel. With the right grinding wheel, a collection box is fixed on the lower surface of the side plate; the utility model makes the left and right grinding wheels of the device rotate synchronously through the transmission between gears, making grinding more accurate, more practical, and suitable for widespread promotion and use.

Description

Centerless Grinders for Steel Bars

technical field

The utility model belongs to the field of steel bar processing, in particular to a centerless grinding machine for steel bars.

Background technique

A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinding machines use high-speed rotating grinding wheels for grinding, and a few use other abrasive tools such as oilstone, abrasive belts, and free abrasives for processing, such as honing machines, superfinishing machine tools, belt grinding machines, grinding machines and polishing. machine, etc. A centerless grinder for steel bars, on the other hand, needs to grind the steel bars to the desired size.

After retrieval CN 215201050 U discloses a shearing machine for steel structure processing, which includes a centerless grinder support table, and the left and right ends of the centerless grinder support table are provided with left grinding wheels and right grinding wheels; The front end is provided with a feeding support frame; the feeding support frame is fixed with a backing plate; the left and right ends of the backing plate are provided with a left plywood and a right plywood, wherein the feeding vertical plate is fixed on the left plywood, wherein the The right clamping plate is provided with a shock-absorbing plate that is in close contact with the feeding vertical plate; two ends of the backing plate are extended with extension plates; the bottom of each extension plate is connected to a support arm; the other side of each support arm One end is connected and fixed with the sliding plate, wherein the sliding plate is slidably fixed on the bottom of the feeding support frame; the bottom of the sliding plate is provided with an adjusting sleeve; wherein the adjusting bolt passes through the bottom of the feeding supporting frame and is screwed and fixed on the adjusting sleeve tube. Although the utility model has the advantages of stable processing, shock absorption and easy adjustment, the processing effect is ensured and the work efficiency is improved.

However, through the exploration of the present inventor, it is found that this technical solution still has at least the following defects:

In actual operation, the feeding device of the device can only keep feeding in one direction. If the feeding is excessive at this time, it cannot be returned in time, resulting in waste of materials, and after the steel bar is polished, the debris will stick. Around the steel rod, it is inconvenient for secondary use.

In view of this, the present invention is proposed.

Utility model content

In order to solve the above-mentioned technical problems, the basic conception of the technical scheme adopted by the present utility model is:

A centerless grinder for steel bars includes a side plate, characterized in that four brackets are fixedly arranged on the upper surface of the side plate, and a working platform is fixedly arranged on the upper surface of the four brackets, and the center position of the working platform is movable A screw rod is provided, a turntable is movably arranged at the end of the screw rod, a motor is fixed on the upper surface of the side plate, a motor spindle is movably connected inside the motor, and a drive gear is fixedly connected to the end of the motor spindle, so A left gear and a right gear are meshed on both sides of the drive gear, and a left grinding wheel main shaft and a right grinding wheel main shaft are fixedly arranged at the center positions of the left and right gears. A left grinding wheel and a right grinding wheel are movably arranged at the other ends of the left grinding wheel main shaft and the right grinding wheel main shaft, a collection box is fixedly arranged on the lower surface of the side plate, and a supporting leg is fixedly arranged on the lower surface of the collection box.

As a preferred embodiment of the present invention, a liquid tank is arranged inside the side plate, a spray head is fixedly arranged on the front of the side plate, the spray head is directly connected to the liquid tank, and the liquid tank inside the device stores water or The lubricating fluid, and the spray head is connected to it, can transport the water or lubricating fluid of the device to the grinding place, and play the role of cooling and lubricating.

As a preferred embodiment of the present invention, a T-shaped groove is opened at the bottom of the turntable, and a steel rod is engaged with the inside of the T-shaped groove. The inner T-shaped groove ensures the connection between the steel rod and the turntable, so that the turntable is After the rotation, the steel rods are matched by the T-shaped grooves to ensure that the steel rods do not leave the turntable, and the height of the steel rods can be controlled through the turntable.

As a preferred embodiment of the present invention, a handle is fixed on the upper surface of the turntable, and a non-slip holster is fixed on the handle. The function of the handle is to make it easier for the operator to exert force, so that the turntable can be rotated. The anti-slip holster prevents the operator from slipping his hands during the operation, causing the turntable to be out of control and eventually causing damage to the steel rod.

As a preferred embodiment of the present invention, a groove is provided inside the collection box, a chip resistance hole with a diameter similar to that of a steel rod is formed at the bottom of the groove, and a brush is fixed inside the chip resistance hole. After completion, the steel rod passes through the chip blocking hole. Since the chip blocking hole is provided with a brush to clean the surface, the debris leaks into the collection box.

As a preferred embodiment of the present invention, the left grinding wheel and the right grinding wheel are internally provided with threads, and the left grinding wheel main shaft and the right grinding wheel main shaft are meshed and connected. It ensures the grinding of steel bars of different sizes in the later stage, and only needs to change the size of the grinding wheel, which is convenient for later use.

Compared with the prior art, the utility model has the following beneficial effects:

In the utility model, the turntable can be moved up and down by rotating the turntable on the screw rod, while the steel rod is relatively fixed with the lower surface of the turntable, so that the height of the steel rod can also be adjusted accordingly, which can be more convenient in the later operation. Controlling the feed rate makes the grinding of the device more precise.

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Description of drawings

In the attached image:

Fig. 1 is a three-dimensional schematic diagram of a centerless grinder for steel bars;

Figure 2 is a top view of a centerless grinder for steel bars;

Figure 3 is a schematic diagram of a centerless grinder turntable for steel bars.

In the picture: 1-side plate; 2-support; 3-working platform; 4-turntable; 5-handle; 6-screw; 7-steel rod; 8-spray head; 9-left grinding wheel; 10-right grinding wheel; 11 -collection box; 12-support leg; 13-motor; 14-motor spindle; 15-left grinding wheel spindle; 16-right grinding wheel spindle; 17-left gear; 18-right gear; 19-drive gear; 20-chip hole ; 21- groove; 22- anti-slip holster; 23- T-slot.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the following embodiments are used to illustrate The utility model.

As shown in Figures 1 to 3, the centerless grinding machine for steel bars includes a side plate 1, and four brackets 2 are fixedly arranged on the upper surface of the side plate 1, and the upper surface of the four brackets 2 is fixedly arranged with working The platform 3 and the bracket 2 keep the working platform 3 stable, a lead screw 6 is movably arranged at the center of the working platform 3, and a turntable 4 is movably arranged at the end of the lead screw 6, and the turntable 4 can move up and down on the lead screw 6, so the The upper surface of the side plate 1 is fixedly provided with a motor 13, a motor main shaft 14 is movably connected inside the motor 13, and a drive gear 19 is fixedly connected to the end of the motor main shaft 14. The motor 13 drives the drive gear 19 to rotate, and the drive gear 19 is meshed with a left gear 17 and a right gear 18 on both sides, and a left grinding wheel main shaft 15 and a right grinding wheel main shaft 16 are fixed at the center of the left gear 17 and the right gear 18. One end of the left grinding wheel main shaft 15 and the right grinding wheel main shaft 16 is movable. A side plate 1 is provided. The other ends of the left grinding wheel main shaft 15 and the right grinding wheel main shaft 16 are movably provided with a left grinding wheel 9 and a right grinding wheel 10. The lower surface of the side plate 1 is fixedly provided with a collection box 11. A support leg 12 is fixed on the surface, and finally the left grinding wheel 10 and the right grinding wheel of the device rotate synchronously through the mutual transmission between the gears.

As shown in FIG. 1 to FIG. 3 , in a specific embodiment, a liquid tank is provided inside the side plate 1 , and a spray head 8 is fixed on the front of the side plate 1 , and the spray head 8 is directly connected to the liquid tank. The device Because it is grinding, the occurrence of heat generation cannot be avoided. At this time, the nozzle 8 is connected to the liquid tank, and can spray cooling liquid to cool down or spray lubricating liquid, so that the grinding efficiency of the device is improved. The bottom of the turntable 4 There is a T-shaped groove 23, and the steel bar 7 is engaged with the inner T-shaped groove 23. The inner T-shaped groove 23 ensures the connection between the steel bar 7 and the turntable 4, so that after the turntable 4 rotates, the steel bar 7 passes through. The cooperation of the T-shaped grooves 23 ensures that the steel rod 7 does not leave the turntable 4 , and then the height of the steel rod 7 is controlled by the turntable 4 .

As shown in FIGS. 1 to 3 , further, a handle 5 is fixedly arranged on the upper surface of the turntable 4 , and a non-slip holster 22 is fixedly arranged on the handle 5 . 4 is not easy to be rotated, even if it can be rotated, it cannot be adjusted finely, and the handle 5 makes it easy to rotate and easy to adjust, and the anti-slip holster 22 at this time prevents the operator from slipping hands during the operation, causing the turntable 4 to be out of control , eventually causing the steel rod 7 to be damaged, the collection box 11 is provided with a groove 21, and the bottom of the groove 21 is provided with a chip resistance hole 20 with a diameter similar to that of the steel rod 7, and the chip resistance hole 20 is fixedly provided with hair These devices make the polished steel rod 7 pass through the chip resistance hole 20, wherein a brush is arranged inside the chip resistance hole 20, so the debris will leak into the collection box 11, and the left grinding wheel 9 and the right grinding wheel 10 are opened inside There are threads, and the left grinding wheel main shaft 15 and the right grinding wheel main shaft 16 are meshed and connected. This mechanism makes it possible to replace the left grinding wheel 9 and the right grinding wheel 10. When the size of the left grinding wheel 9 and the right grinding wheel 10 changes, the distance between them also changes. Subsequently, the diameter of the steel bar 7 we process will also change, making the processing range wider and improving the processing efficiency.

The implementation principle of the centerless grinding machine for steel bars in this embodiment is as follows: first, the operator installs the steel bar 7 and the turntable 4 together, then starts the motor 13, and the motor 13 drives the motor shaft 14 to rotate, and finally makes the drive gear 19 also Start to rotate, and the left gear 17 and the right gear 18 are meshed with the left gear 17 and the right gear 18 on both sides of the driving gear 19 at this time, and the left gear 17 and the right gear 18 are rotated through the meshing transmission. 17 and the right gear 18 are relatively fixed, so the left grinding wheel 9 and the right grinding wheel 10 can start to rotate. At this time, the operator slowly turns the handle 5 to drive the turntable 4 to rotate. At this time, the turntable 4 and the screw 6 are installed together, and the turntable 4 will rotate. It will slowly descend, driving the steel rod 7 to descend and contact the left grinding wheel 9 and the right grinding wheel 10 to start grinding. When the polished steel pipe 7 is exposed along the chip resistance hole 20, a brush is installed inside the chip resistance hole 20 at this time. The swarf will stay in the collecting box 11, and the collecting box 11 will be cleaned when the work is completed.

Claims (6)

1. A centerless grinding machine for steel bars comprises a side plate (1) and is characterized in that four supports (2) are fixedly arranged on the upper surface of the side plate (1), four working platforms (3) are fixedly arranged on the upper surface of the supports (2), a lead screw (6) is movably arranged at the center of each working platform (3), a turntable (4) is movably arranged at the tail section of each lead screw (6), a motor (13) is fixedly arranged on the upper surface of the side plate (1), a motor spindle (14) is movably connected inside the motor (13), a driving gear (19) is fixedly connected at the tail section of each motor spindle (14), a left gear (17) and a right gear (18) are meshed with the two sides of the driving gear (19), a left grinding wheel spindle (15) and a right grinding wheel spindle (16) are fixedly arranged at the center of the left gear (17) and the right gear (18), the side plate (1) is movably arranged at one end of the left grinding wheel spindle (15) and one end of the right grinding wheel spindle (16), a left grinding wheel spindle (9) and a right grinding wheel (10) are movably arranged at the other end of the left grinding wheel spindle (15), a side plate (1) and a collecting box (11) is fixedly arranged at the lower surface of a collecting box (12).

2. The centerless grinder for steel bars as claimed in claim 1, characterized in that a liquid tank is arranged inside the side plate (1), the front surface of the side plate (1) is fixedly provided with a spray head (8), and the spray head (8) is directly connected with the liquid tank through a hose.

3. The centerless grinding machine for steel bars according to claim 1, characterized in that the bottom of the turntable (4) is provided with a T-shaped groove (23), and the steel bar (7) is engaged inside the T-shaped groove (23).

4. The centerless grinder for steel bars according to claim 1, characterized in that a handle (5) is fixedly arranged on the upper surface of the turntable (4), and an anti-skid leather sheath (22) is fixedly arranged on the surface of the handle (5).

5. The centerless grinding machine for steel bars as claimed in claim 1, characterized in that a groove (21) is formed in the collection box (11), a chip blocking hole (20) having the same diameter as the steel bar (7) is formed at the bottom of the groove (21), and a brush is fixedly arranged in the chip blocking hole (20).

6. The centerless grinding machine for steel bars according to claim 1, characterized in that the left grinding wheel (9) and the right grinding wheel (10) are internally threaded and are connected in mesh with the left grinding wheel spindle (15) and the right grinding wheel spindle (16).

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