Grinding device with machining size in-place alarm

Abstract

The utility model discloses a grinding device with a machining size in-place alarm, which comprises a lathe, a support plate, a grinding component and a size in-place alarm device, the lathe comprises a rotary clamping device and a displacement component, and the rotary clamping device is used for clamping a part to be machined and driving the part to be machined to rotate around a clamped central shaft; the supporting plate is connected with the displacement assembly, the supporting plate is vertically arranged, the plate face of the supporting plate is perpendicular to the center shaft, and the displacement assembly is used for driving the supporting plate to move. The grinding assembly is arranged on the supporting plate and used for grinding the peripheral side face of the to-be-machined part. The size in-place alarm device comprises a power supply, a transformer, an insulating seat, a fixed seat, an alarm lamp and a measuring metal rod; by arranging the size in-place alarm device, the grinding depth can be preset, an alarm is given after grinding is in place, and the grinding machine is simple in structure, low in manufacturing cost, convenient to operate and high in machining precision.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, in particular to a grinding device with an alarm for when the processing size is in place. Background Art

[0002] Grinding devices are mainly used to perform precision machining on the surface of workpieces to obtain the required size and surface quality.

[0003] However, the processing accuracy in existing grinding devices depends largely on the operator's experience and skills, which may lead to inconsistency in processing quality and dimensional errors; existing grinding devices usually do not have an alarm system to prompt the operator whether the grinding depth has reached the preset value, which may lead to over- or under-processing and affect the quality and accuracy of the product; during the grinding process, the operator needs to constantly measure the workpiece size manually and adjust the grinding parameters based on the measurement results. This process is time-consuming and prone to errors. Utility Model Content

[0004] In view of the above problems, the utility model aims to provide a grinding device with an alarm when the processing size is in place, which can preset the grinding depth and alarm after the grinding is in place.

[0005] The technical solution of the utility model is as follows:

[0006] A grinding device with a processing size in-place alarm, comprising a lathe, a support plate, a grinding assembly and a size in-place alarm device, the lathe comprising a rotary clamping device and a displacement assembly, the rotary clamping device being used to clamp a part to be processed and drive the part to be processed to rotate around the clamping center axis; the support plate is connected to the displacement assembly, the support plate is vertically arranged and its plate surface is perpendicular to the center axis, the displacement assembly is used to drive the support plate to move; the grinding assembly is arranged on the support plate, and the grinding assembly is used to grind the peripheral side surface of the part to be processed;

[0007] The dimension in-place alarm device is arranged on the support plate, and the dimension in-place alarm device includes a power supply, a transformer, an insulating seat, a fixing seat, an alarm light and a measuring metal rod; the bottom of the insulating seat is arranged on the support plate, the insulating seat is sleeved on the measuring metal rod, and a fixing bolt is arranged on the insulating seat; the fixing seat includes a connected insulating plate and a metal connector, the insulating plate is arranged on the support plate, and the metal connector is sleeved on the measuring metal rod; the measuring metal rod includes a connected micrometer and a metal screw, the micrometer is used to adjust the length of the metal screw and measure the length change of the metal screw, one end of the metal screw is close to the part to be processed, the straight line where the metal screw is located is perpendicular to the tangent line where the grinding surface of the grinding assembly is located and intersects with the central axis; the alarm light and the transformer are both arranged on the support plate, one end of the transformer is connected to an electrode of the power supply through a wire, and the other end is connected to the alarm light through a wire, and the alarm light is connected to the support plate through a wire; one end of the transformer is connected to the other electrode of the power supply through a wire, and the other end is connected to the metal connector through a wire;

[0008] The measuring metal rod, support plate, lathe and part to be processed are all metal structures. When one end of the measuring metal rod contacts the part to be processed, the current of one electrode of the power supply is transmitted from the metal screw to the part to be processed, the lathe, the support plate and then to the alarm light through the transformer. Finally, the current returns to the other electrode of the power supply through the transformer. At this time, the circuit is connected and the alarm light is powered on to sound an alarm.

[0009] Preferably, the grinding assembly includes a grinding wheel, a transmission wheel, a sanding belt and a driving motor; the driving motor is arranged on one side surface of the support plate, the size in-place alarm device and the driving motor are on the same side of the support plate, the transmission wheel and the grinding wheel are arranged on the other side surface of the support plate, the transmission shaft of the driving motor is rotatably connected to the support plate, the transmission shaft passes through the support plate and is connected to the transmission wheel, the grinding wheel is rotatably arranged on one end of the support plate close to the part to be processed, and the grinding wheel partially extends beyond the edge of the support plate; the sanding belt is arranged on the peripheral side of the transmission wheel and the grinding wheel.

[0010] Preferably, the support plate is a right-angled trapezoidal plate surface, the lower base of the right-angled trapezoidal plate surface is on the same horizontal plane as the central axis, the acute-angled end of the lower base of the right-angled trapezoidal plate surface is arc-shaped, the grinding wheel is arranged at the acute-angled end, and the transmission wheel is arranged at the right-angled end of the upper base of the right-angled trapezoidal plate surface.

[0011] Preferably, a slide groove is provided at the obtuse end of the bottom edge of the right-angled trapezoidal plate surface, and the slide groove is vertically arranged. An adjusting wheel is slidably connected to one side of the slide groove, and the adjusting wheel is on the same side as the transmission wheel. The peripheral side surface of the adjusting wheel is connected to the sanding belt, and a locking bolt is provided on the other side of the slide groove. The screw of the locking bolt passes through the slide groove and is rotatably connected to the adjusting wheel.

[0012] Preferably, the rotary clamping device comprises a chuck, a chuck driver and a lathe tailstock, the chuck and the lathe tailstock are arranged opposite to each other, and the chuck driver is arranged on the back side of the chuck.

[0013] Preferably, the displacement assembly includes a lathe tool rest, a large slide and a middle slide, the lathe tool rest is connected to the support plate, the large slide and the middle slide are connected to the lathe tool rest, the large slide is used to drive the lathe tool rest to move laterally, and the middle slide is used to drive the lathe tool rest to move longitudinally.

[0014] Preferably, a connecting block is provided at the bottom of the support plate, and the connecting block is connected to the lathe tool holder by bolts.

[0015] Preferably, an end surface of the metal screw close to the part to be processed is an arc-shaped surface.

[0016] Preferably, two insulating seats are provided.

[0017] The beneficial effects of the utility model are:

[0018] The utility model can preset the grinding depth by arranging the size in-place alarm device, and automatically alarm after the grinding is in place, thereby improving the accuracy and efficiency of the grinding process, reducing the operating difficulty and production cost, and enhancing the safety of the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the size arrival alarm device of the utility model;

[0022] Figure 3 It is a schematic structural diagram of the grinding assembly of the utility model.

[0023] Numbers in the figure: 1-size alarm device, 101-metal connector, 102-micrometer, 103-insulating plate, 104-insulating seat, 105-fixing bolt, 106-metal screw, 107-transformer, 108-alarm light, 109-wire; 2-grinding assembly, 201-drive motor, 202-transmission wheel, 203-grinding wheel, 204-abrasive belt, 205-adjusting wheel; 3-parts to be processed, 4-chuck, 5-lathe tool holder, 6-lathe tailstock, 7-support plate, 8-slide, 9-locking bolt, 10-connecting block. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0025] It should be noted that, in the absence of conflict, the embodiments in this application and the technical features in the embodiments may be combined with each other.

[0026] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0027] In the present invention, unless otherwise stated, the terms "first", "second", etc. are used to distinguish similar objects, rather than to describe a specific order or sequence. The terms used in this way should be understood; the terms "upper", "lower", "left", "right", etc. are usually used in relation to the directions shown in the drawings, or in relation to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inner", "outer", etc. refer to the inside and outside relative to the outline of each component itself. However, the above-mentioned directional words are not used to limit the present invention.

[0028] like Figure 1-3 As shown, a grinding device with a processing size in-place alarm includes a lathe (not shown in the figure), a support plate 7, a grinding assembly 2 and a size in-place alarm device 1, the lathe includes a rotary clamping device and a displacement assembly, the rotary clamping device is used to clamp a part 3 to be processed and drive the part 3 to be processed to rotate around the clamping center axis; the support plate 7 is connected to the displacement assembly, the support plate 7 is vertically arranged and its plate surface is perpendicular to the center axis, and the displacement assembly is used to drive the support plate 7 to move; the grinding assembly 2 is arranged on the support plate 7, and the grinding assembly 2 is used to grind the peripheral side surface of the part 3 to be processed;

[0029] The size in-place alarm device 1 is arranged on the support plate 7, and the size in-place alarm device 1 includes a power supply, a transformer 107, an insulating seat 104, a fixing seat, an alarm light 108 and a measuring metal rod; the bottom of the insulating seat 104 is arranged on the support plate 7, the insulating seat 104 is sleeved on the measuring metal rod, and a fixing bolt 105 is arranged on the insulating seat 104; the fixing seat includes a connected insulating plate 103 and a metal connecting piece 101, the insulating plate 103 is arranged on the support plate 7, and the metal connecting piece 101 is sleeved on the measuring metal rod; the measuring metal rod includes a connected micrometer 102 and a metal screw 106, and the micrometer 102 is used to adjust the metal screw 1 06 and measure the length of the metal screw 106, one end of the metal screw 106 is close to the part to be processed 3, the straight line where the metal screw 106 is located is perpendicular to the tangent line where the grinding surface of the grinding assembly 2 is located and intersects with the central axis; the alarm light 108 and the transformer 107 are both arranged on the support plate 7, one end of the transformer 107 is connected to an electrode of the power supply through a wire 109, and the other end is connected to the alarm light 108 through a wire 109, and the alarm light 108 is connected to the support plate 7 through a wire 109; one end of the transformer 107 is connected to the other electrode of the power supply through a wire 109, and the other end is connected to the metal connector 101 through a wire 109;

[0030] The measuring metal rod, support plate 7, lathe and part to be processed 3 are all metal structures. When one end of the measuring metal rod contacts the part to be processed 3, the current of one electrode of the power supply is transmitted from the metal screw 106 to the part to be processed 3, the lathe, the support plate 7 and then to the alarm light 108 through the transformer 107. Finally, the current returns to the other electrode of the power supply through the transformer 107. At this time, the circuit is connected and the alarm light 108 is powered on to alarm.

[0031] In a specific embodiment, the grinding assembly 2 includes a grinding wheel 203, a transmission wheel 202, a sanding belt 204 and a driving motor 201; the driving motor 201 is arranged on one side plate surface of the support plate 7, the size in-place alarm device 1 and the driving motor 201 are on the same side of the support plate 7, the transmission wheel 202 and the grinding wheel 203 are arranged on the other side plate surface of the support plate 7, the transmission shaft of the driving motor 201 is rotatably connected to the support plate 7, the transmission shaft passes through the support plate 7 and is connected to the transmission wheel 202, the grinding wheel 203 is rotatably arranged on one end of the support plate 7 close to the part to be processed 3, and the grinding wheel 203 partially extends beyond the edge of the support plate 7; the sanding belt 204 is arranged on the peripheral side of the transmission wheel 202 and the grinding wheel 203. The support plate 7 is a right-angled trapezoidal plate surface, the lower bottom edge of the right-angled trapezoidal plate surface is on the same horizontal plane as the central axis, the acute angle end of the lower bottom edge of the right-angled trapezoidal plate surface is arc-shaped, the grinding wheel 203 is arranged at the acute angle end, and the transmission wheel 202 is arranged at the right angle end of the bottom edge of the right-angled trapezoidal plate surface. The rotating clamping device includes a chuck 4, a chuck 4 driver and a lathe tailstock 6, the chuck 4 and the lathe tailstock 6 are arranged relative to each other, and the chuck 4 driver is arranged on the back of the chuck 4. The displacement assembly includes a lathe tool rest 5, a large carriage and a middle carriage (not shown in the figure), the lathe tool rest 5 is connected to the support plate 7, the large carriage and the middle carriage are connected to the lathe tool rest 5, the large carriage is used to drive the lathe tool rest 5 to move horizontally, and the middle carriage is used to drive the lathe tool rest 5 to move longitudinally. A connecting block 10 is arranged at the bottom of the support plate 7, and the connecting block 10 is connected to the lathe tool rest 5 by bolts. The actual diameter of the part 3 to be processed is 40.40 mm, and the diameter dimension is 40.00 mm.

[0032] In the above embodiment, first, the part to be processed 3 is fixed between the chuck 4 and the lathe tailstock 6 to ensure that the part to be processed that needs to be ground has a grinding allowance of 0.3-0.5mm; the position of the lathe tool holder 5 is adjusted using the large slide and the middle slide to make the support plate 7 and the grinding assembly 2 reach a suitable starting position; the length of the metal screw 106 is adjusted using the micrometer 102 to ensure that the end of the metal screw 106 does not immediately contact the part to be processed 3 before the grinding starts; it should be noted that the micrometer 102 is similar in structure and measurement method to a micrometer with an accuracy of 0.01mm, and the micrometer is a prior art, and the specific structure of the micrometer 102 is not repeated here;

[0033] The micrometer 102 is zeroed, the driver of the chuck 4 is started to rotate the workpiece 3 to be processed, and the driving motor 201 of the grinding assembly 2 is started at the same time, so that the transmission wheel 202 drives the grinding wheel 203 and the abrasive belt 204 to rotate; the large drag plate is started to make the supporting plate 7 and the grinding assembly 2 move laterally as a whole, so that the abrasive belt 204 gradually contacts the workpiece 3 to be processed, and when the generation of grinding sparks is observed, the driver of the chuck 4 and the driving motor 201 are stopped;

[0034] Then, adjust the micrometer 102 to move the metal screw 106 toward the part 3 to be processed until it contacts the part 3 to be processed, triggering the alarm light 108 to light up, and record the scale value of the micrometer 102 as 10.30 mm at this time; calculate the length of the metal screw 106 that needs to be adjusted based on the actual size of the part 3 to be processed and the expected processing allowance, then adjust the metal screw 106 backward to the corresponding position, and lock the measuring metal rod with the fixing bolt 105.

[0035] At this time, the actual diameter of the part 3 to be processed is 40.40 mm, the diameter dimension is 40.00 mm, and the expected machining allowance is the size of the actual diameter minus the size of the diameter dimension, so the expected machining allowance is calculated to be 0.40 mm. The length of the metal screw 106 that needs to be adjusted is the value of the expected machining allowance divided by 2, and the length value of the metal screw 106 that needs to be adjusted is calculated to be 0.20 mm (i.e., the required grinding thickness), that is, the length of the metal screw 106 needs to be retreated by 0.20 mm, and the recorded scale value of the micrometer 102 is 10.30 mm plus the length value of the metal screw 106 that needs to be adjusted is 0.20 mm to obtain the final scale value of 10.50 mm, and the micrometer 102 is turned to adjust the scale value to 10.50 mm, and then the fixing bolt 105 is used to lock the measuring metal rod;

[0036] Finally, the drive motor 201 is restarted to rotate the abrasive belt 204 to continue grinding the part 3 to be processed; when the metal screw 106 contacts the part 3 to be processed again, the circuit is connected, and the alarm light 108 lights up, prompting the operator that the grinding is in place.

[0037] Repeat the above steps, use the middle slide or the large slide to make multiple fine adjustments along the horizontal or vertical axis to complete the grinding of the overall outer diameter of the part 3 to be processed. It is measured that the final surface roughness of the processed part after grinding using the utility model can reach Ra0.8-Ra1.6, which improves the accuracy and efficiency of the grinding process.

[0038] The transformer 107 can reduce the voltage output by the power supply to a safe voltage range that will not harm the operator's body.

[0039] In a specific embodiment, a slide groove 8 is provided at the obtuse end of the bottom edge of the right-angled trapezoidal plate surface, and the slide groove 8 is vertically arranged. An adjusting wheel 205 is slidably connected to one side of the slide groove 8. The adjusting wheel 205 is on the same side as the transmission wheel 202. The peripheral side surface of the adjusting wheel 205 is connected to the sanding belt 204. A locking bolt 9 is provided on the other side of the slide groove 8. The screw of the locking bolt 9 passes through the slide groove 8 and is rotatably connected to the adjusting wheel 205.

[0040] In the above embodiment, by adjusting the height of the adjusting wheel 205, the sanding belt 204 can be tightened, which helps to reduce the sliding of the sanding belt 204 and improve the grinding accuracy and surface finish; after the sanding belt 204 is tightened, the position of the adjusting wheel 205 is fixed by the locking bolt 9.

[0041] In a specific embodiment, the end face of the metal screw 106 close to the part to be processed 3 is an arc-shaped surface. In this embodiment, by setting the end face of the metal screw 106 to be an arc-shaped surface, the contact surface between the metal screw 106 and the part to be processed 3 is reduced, so that even a small contact can cause a significant measurement change, providing more accurate contact feedback, which helps to improve the grinding accuracy.

[0042] In a specific embodiment, two insulating seats 104 are provided. In the above embodiment, by providing two insulating seats 104, additional stability and safety are provided for the measuring metal rod; at the same time, the insulating seats 104 ensure that the circuit will not be short-circuited, so that the alarm light 108 can alarm normally, ensuring the reliability of the electrical connection.

[0043] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A grinding device with an alarm for processing size in place, characterized in that: It comprises a lathe, a support plate, a grinding assembly and a size in place alarm device, the lathe comprises a rotary clamping device and a displacement assembly, the rotary clamping device is used to clamp the part to be processed and drive the part to be processed to rotate around the clamping center axis; the support plate is connected to the displacement assembly, the support plate is vertically arranged and its plate surface is perpendicular to the center axis, the displacement assembly is used to drive the support plate to move; the grinding assembly is arranged on the support plate, and the grinding assembly is used to grind the peripheral side surface of the part to be processed; The dimension in-place alarm device is arranged on the support plate, and the dimension in-place alarm device includes a power supply, a transformer, an insulating seat, a fixing seat, an alarm light and a measuring metal rod; the bottom of the insulating seat is arranged on the support plate, the insulating seat is sleeved on the measuring metal rod, and a fixing bolt is arranged on the insulating seat; the fixing seat includes a connected insulating plate and a metal connector, the insulating plate is arranged on the support plate, and the metal connector is sleeved on the measuring metal rod; the measuring metal rod includes a connected micrometer and a metal screw, the micrometer is used to adjust the length of the metal screw and measure the length change of the metal screw, one end of the metal screw is close to the part to be processed, the straight line where the metal screw is located is perpendicular to the tangent line where the grinding surface of the grinding assembly is located and intersects with the central axis; the alarm light and the transformer are both arranged on the support plate, one end of the transformer is connected to an electrode of the power supply through a wire, and the other end is connected to the alarm light through a wire, and the alarm light is connected to the support plate through a wire; one end of the transformer is connected to the other electrode of the power supply through a wire, and the other end is connected to the metal connector through a wire; The measuring metal rod, support plate, lathe and part to be processed are all metal structures. When one end of the measuring metal rod contacts the part to be processed, the current of one electrode of the power supply is transmitted from the metal screw to the part to be processed, the lathe, the support plate and then to the alarm light through the transformer. Finally, the current returns to the other electrode of the power supply through the transformer. At this time, the circuit is connected and the alarm light is powered on to sound an alarm.

2. The grinding device with processing size in place alarm according to claim 1 is characterized in that: The grinding assembly includes a grinding wheel, a transmission wheel, a sanding belt and a driving motor; the driving motor is arranged on one side of the support plate, the size in-place alarm device and the driving motor are on the same side of the support plate, the transmission wheel and the grinding wheel are arranged on the other side of the support plate, the transmission shaft of the driving motor is rotatably connected to the support plate, the transmission shaft passes through the support plate and is connected to the transmission wheel, the grinding wheel is rotatably arranged on one end of the support plate close to the part to be processed, and the grinding wheel partially extends beyond the edge of the support plate; the sanding belt is arranged on the peripheral side of the transmission wheel and the grinding wheel.

3. The grinding device with processing size in place alarm according to claim 2 is characterized in that: The support plate is a right-angled trapezoidal plate surface, the lower base of the right-angled trapezoidal plate surface is on the same horizontal plane as the central axis, the acute angle end of the lower base of the right-angled trapezoidal plate surface is arc-shaped, the grinding wheel is arranged at the acute angle end, and the transmission wheel is arranged at the right angle end of the upper base of the right-angled trapezoidal plate surface.

4. The grinding device with processing size in place alarm according to claim 3 is characterized in that: A slide groove is provided at the obtuse end of the bottom edge of the right-angled trapezoidal plate surface, and the slide groove is vertically arranged. An adjusting wheel is slidably connected to one side of the slide groove, and the adjusting wheel is on the same side as the transmission wheel. The peripheral side surface of the adjusting wheel is connected to the sanding belt, and a locking bolt is provided on the other side of the slide groove. The screw of the locking bolt passes through the slide groove and is rotatably connected to the adjusting wheel.

5. The grinding device with processing size in place alarm according to claim 1 is characterized in that: The rotary clamping device comprises a chuck, a chuck driver and a lathe tailstock. The chuck and the lathe tailstock are arranged opposite to each other, and the chuck driver is arranged on the back side of the chuck.

6. The grinding device with processing size in place alarm according to claim 1 is characterized in that: The displacement assembly includes a lathe tool rest, a large slide and a middle slide. The lathe tool rest is connected to the support plate, and the large slide and the middle slide are connected to the lathe tool rest. The large slide is used to drive the lathe tool rest to move laterally, and the middle slide is used to drive the lathe tool rest to move longitudinally.

7. The grinding device with processing size in place alarm according to claim 6 is characterized in that: A connecting block is arranged at the bottom of the supporting plate, and the connecting block is connected to the lathe tool rest via bolts.

8. The grinding device with processing size reaching alarm according to claim 1 is characterized in that: The end surface of the metal screw rod close to the part to be processed is an arc-shaped surface.

9. The grinding device with processing size reaching alarm according to claim 1, characterized in that: The insulating seats are provided with two.

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