Grinding machine cooling device

Abstract

The utility model discloses a cooling device of a grinding machine. The grinding machine comprises a base, a working table in sliding fit with the base and a grinding head arranged above the working table. The cooling device comprises a water tank, a water outlet pipe connected with a water outlet of the water tank, a water return pipe connected with a water return port of the water tank, a water pump arranged on the water tank, a cooling water channel arranged in the workbench, water tanks arranged on the two sides of the base and a spray head arranged on the grinding head, and an output port of the water outlet pipe is connected with an input port of the cooling water channel and the spray head. An output port of the cooling water channel is in butt joint with the water tank, and an input port of the water return pipe is connected with the water tank. The cooling device is better in cooling effect and higher in workpiece machining precision.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool equipment, in particular to a grinding machine cooling device. Background Art

[0002] When a grinder processes a workpiece, the workpiece generates a large amount of heat, so coolant is needed to cool the workpiece during the processing. For example, a CNC surface grinder with Chinese patent publication number CN106736931A includes a bed, a cooling box, and a moving device. A workbench is provided on the upper part of the bed, and a vertical plate is provided on the upper and rear sides of the workbench. The bed, workbench, and vertical plate are integrally cast. A coolant recovery tank is provided above the workbench, and the coolant recovery tank is fixedly connected to the workbench by bolts. A cooling box is installed inside the bed, and a connecting plate is provided on the left side of the bottom of the cooling box. The connecting plate is fixed to the cooling box by welding, and the connecting plate is provided with several threaded holes. A liquid inlet is provided on the top right side of the cooling box, and the liquid inlet is connected to the coolant recovery tank. A filter ramp is provided at the lower end of the liquid inlet, and the left end of the filter ramp is higher than the right end. Existing grinding machines lack heat dissipation for the workbench. When a workpiece is fixed on the workbench for processing, the heat on the workpiece will be transferred to the workbench through heat conduction, and the workbench will also deform due to the heat, thereby affecting the processing accuracy of the workpiece. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a grinding machine cooling device with better cooling effect and higher workpiece processing accuracy.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a grinding machine cooling device, the grinding machine includes a base, a workbench arranged on the base and a grinding head arranged above the workbench; the cooling device includes a water tank, a water outlet pipe connected to the water outlet of the water tank, a return pipe connected to the return water outlet of the water tank, a water pump arranged on the water tank, a cooling water channel arranged inside the workbench, water troughs arranged on both sides of the base and a nozzle arranged on the grinding head, the output port of the water outlet pipe is respectively connected to the input port of the cooling water channel and the nozzle, the output port of the cooling water channel is connected to the water trough, and the input port of the return pipe is connected to the water trough. The principle of the utility model is as follows: the water pump pumps the coolant in the water tank to the cooling water channel and nozzle of the workbench, a part of the coolant is sprayed on the surface of the workpiece for cooling through the nozzle, the coolant exchanges heat with the surface of the workpiece and finally flows back to the water tanks on both sides of the base, the other part of the coolant is discharged to the water tank after heat exchange through the cooling channel inside the workbench, and finally the coolant in the water tank returns to the water tank through the return pipe to form a cooling cycle; the coolant of the utility model cools the workpiece and the workbench at the same time, the heat dissipation effect is better, the deformation of the workbench can be reduced, and the processing accuracy of the workpiece is higher.

[0005] As an improvement, the workbench is provided with a plurality of parallel cooling water channels, the inlet of the cooling water channel is provided at the front end of the workbench, the outlet of the cooling water channel is provided at the rear end of the workbench, and the outlet of the outlet pipe is forked and respectively connected to a plurality of cooling water channels.

[0006] As an improvement, the inlet of the cooling water channel is provided with an input joint, and the outlet of the cooling water channel is provided with an output joint.

[0007] As an improvement, the output port of the cooling water channel is connected to a guide pipe, and the guide pipe is connected to the water tank.

[0008] As an improvement, both sides of the base are provided with an integrally formed L-shaped plate, and the L-shaped plate and the side surfaces of the base form the water trough.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The water pump pumps the coolant in the water tank to the cooling water channel and nozzle of the workbench. A part of the coolant is sprayed on the surface of the workpiece through the nozzle to cool the workpiece. After heat exchange with the workpiece surface, the coolant finally flows back to the water tanks on both sides of the base. The other part of the coolant is discharged to the water tank after heat exchange through the cooling channel inside the workbench. Finally, the coolant in the water tank returns to the water tank through the return pipe to form a cooling cycle. The coolant of the utility model cools the workpiece and the workbench at the same time, with better heat dissipation effect, can reduce the deformation of the workbench, and has higher processing accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a side view of the grinder.

[0012] Figure 2 Top view of the grinder.

[0013] Figure 3 This is the end view of the base. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings.

[0015] like Figures 1 to 3As shown, a cooling device for a grinding machine comprises a base 1, a workbench 2 that slides with the base 1, and a grinding head 3 disposed above the workbench 2. The cooling device comprises a separately provided water tank 4, a water outlet pipe 6 connected to the water outlet of the water tank 4, a water return pipe 7 connected to the water return port of the water tank 4, a water pump 5 disposed on the water tank, a cooling water channel 21 disposed inside the workbench 2, water tanks 11 disposed on both sides of the base 1, and a nozzle 8 disposed on the grinding head 3. The workbench 2 is provided with a plurality of parallel cooling water channels 21, the inlet of the cooling water channel 21 being disposed at the front end of the workbench 2, and the outlet of the cooling water channel 21 being disposed at the rear end of the workbench 2. The first outlet of the water outlet pipe 6 is forked and respectively connected to the plurality of cooling water channels 21. The coolant can enter the workbench 2 through several cooling channels, thereby enhancing the heat dissipation capacity of the workbench 2. The second outlet of the water outlet pipe 6 is connected to a nozzle 8. The nozzle 8 is mounted on the grinding head 3 and moves with the grinding head 3. The nozzle 8 is aimed at the workpiece on the worktable 2, spraying and cooling the workpiece during machining. This portion of the coolant ultimately flows into the water troughs 11 on either side of the base 1. The outlet of the cooling water channel 21 is connected to the guide pipe 9, which, after bending and directing the flow, connects to the water troughs 11. After passing through the cooling channel, the coolant is discharged directly into the water troughs 11 on either side of the base 1. Both sides of the base 1 are integrally formed with L-shaped plates 12. These L-shaped plates 12 and the sides of the base 1 form the water troughs 11. The coolant in the water troughs 11 dissipates heat from the base 1. The inlet of the cooling water channel 21 is equipped with an input connector, and the outlet of the cooling water channel 21 is equipped with an output connector to facilitate the connection between the water outlet pipe 6 and the return pipe 7. The inlet of the return pipe 7 is connected to the end of the water trough 11. The coolant in the water trough 11 is returned to the water tank 4 via the return pipe 7, thus forming a cooling cycle. A filtering device is provided in the water tank for filtering iron filings brought back by the coolant.

[0016] Principle of the present invention: The water pump 5 pumps the coolant in the water tank 4 to the cooling water channel 21 and the nozzle 8 of the workbench 2, and a part of the coolant is sprayed on the surface of the workpiece for cooling through the nozzle 8. After the heat exchange between the coolant and the workpiece surface, it finally flows back to the water tanks 11 on both sides of the base 1, and the other part of the coolant is discharged to the water tank 11 after heat exchange through the internal cooling channel of the workbench 2. Finally, the coolant in the water tank 11 returns to the water tank 4 through the return pipe 7 to form a cooling cycle. The coolant of the present invention cools the workpiece and the workbench 2 at the same time, has a better heat dissipation effect, can reduce the deformation of the workbench 2, and has a higher processing accuracy of the workpiece.

Claims

1. A cooling device for a grinding machine, the grinding machine comprising a base, a worktable disposed on the base, and a grinding head disposed above the worktable; characterized in that: The cooling device includes a water tank, a water outlet pipe connected to the water outlet of the water tank, a return pipe connected to the return water outlet of the water tank, a water pump arranged on the water tank, a cooling water channel arranged inside the workbench, water tanks arranged on both sides of the base and a nozzle arranged on the grinding head. The output port of the water outlet pipe is respectively connected to the input port and the nozzle of the cooling water channel, the output port of the cooling water channel is connected to the water tank, and the input port of the return pipe is connected to the water tank; the input port of the cooling water channel is provided with an input joint, and the output port of the cooling water channel is provided with an output joint; the output port of the cooling water channel is connected to the guide pipe, and the guide pipe is connected to the water tank.

2. A grinding machine cooling device according to claim 1, characterized in that: The workbench is provided with a plurality of parallel cooling water channels, the inlet of the cooling water channel is provided at the front end of the workbench, the outlet of the cooling water channel is provided at the rear end of the workbench, and the outlet of the water outlet pipe is forked and respectively connected to the plurality of cooling water channels.

3. The grinding machine cooling device according to claim 1, characterized in that: An integrally formed L-shaped plate is provided on both sides of the base, and the L-shaped plate and the side surfaces of the base form the water tank.

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