CN220481240U - Perpendicular needle grinder - Google Patents

Abstract

The utility model relates to a vertical needle grinding device which is used for grinding the tip of a vertical needle and is characterized by comprising a clamping mechanism and a grinding mechanism of the vertical needle, wherein the clamping mechanism comprises a turnover cylinder, a rotary grinding cylinder, an upper grinding cylinder, a lower grinding cylinder and a needle clamping cylinder assembly; during grinding, the needle cylinder clamping assembly faces the grinding mechanism, and the grinding center grinds the vertical needle to be processed. The vertical needle grinding device does not need to be manually participated in the feeding and discharging and grinding processes, feeding and discharging and grinding processing are automatically completed, waiting time of feeding and discharging workpieces is shortened, accurate operation is achieved, and production efficiency is improved.

Description

Perpendicular needle grinder

Technical Field

The utility model relates to the technical field of vertical probe machining, in particular to a vertical probe grinding device.

Background

The needle grinding machine is a machine tool accessory for precisely grinding the needle, the thimble and the like by utilizing a simple pressing roller structure on a grinding machine, and comprises a large-scale needle grinding machine, a conventional needle grinding machine, a mini-type needle grinding machine and an electric needle grinding machine.

In the full-automatic needle grinding machine disclosed in the patent CN217493755U, a feeding box is arranged at the top of a workbench, the tops of two extension plates are fixedly connected to the bottom of the feeding box, a feeding groove is formed in the top of the feeding box, the bottom of the feeding groove penetrates through and extends to the bottom of the feeding box, a storage seat is located at the bottom of the feeding box, two electromagnetic blocks are fixedly arranged at the top of the feeding box, two baffles are connected to the top of the feeding box in a sliding manner, and one side of each baffle, far away from each electromagnetic block, penetrates through the feeding box and extends to the inside of the feeding groove.

When the metal needle body needs to be polished, a user lifts the metal needle body to the top of the upper feed box according to the requirement, then the user puts the metal needle body into the upper feed box, the needle body to be polished enters the upper feed box and moves downwards under the action of gravity, two ends of the needle body are in contact with the inner wall of the upper feed box, the needle body is contacted with the baffle to stop, the user controls the electric push rod to conduct power-on work, … …, the user controls the electromagnetic ring to conduct power-on to generate magnetism to adsorb the metal needle body, so that the needle body is limited, the electric push rod drives the object placing seat to move downwards until the metal needle body contacts with the polishing cylinder, the sensor is reset at the moment, the singlechip changes the current direction of the electromagnetic block again, so that the baffle is reset, the user can add the metal probe to be polished into the upper feed box, so that the processing efficiency of the device is improved, the user controls the driving motor to conduct power-on work, the driving motor drives the polishing cylinder fixedly connected with the motor to conduct synchronous polishing, and the polishing cylinder synchronously polishes two ends of the metal needle body after the polishing is finished, and the user controls the electromagnetic ring to conduct power-off to take out the needle body to finish polishing.

In the use process of the existing equipment, feeding and discharging and operation control are completed by manual control, the number of manual operation steps is large, the grinding efficiency is low, the grinding precision is low, the operation experience of operators is needed, and the production efficiency is reduced.

Disclosure of Invention

In view of the above, it is necessary to provide a vertical needle grinding device which can automatically complete feeding and discharging without manual intervention and has a simple structure.

The utility model provides a vertical needle grinder for the pointed end of vertical needle grinds, includes vertical needle's fixture and grinding mechanism, fixture includes upset cylinder, rotatory grinding cylinder, upper and lower grinding cylinder and presss from both sides the cylinder subassembly, the upset cylinder is used for driving when unloading presss from both sides the cylinder subassembly and overturn 180 degrees from top to bottom, grinding mechanism includes the grinding center, rotatory grinding cylinder with it is used for driving respectively to grind the cylinder from top to bottom presss from both sides the cylinder subassembly rotatory and reciprocates, makes the vertical needle of centre gripping in the cylinder subassembly is ground by the grinding center.

Preferably, the needle clamping cylinder assembly comprises a needle clamping cylinder and a needle clamping cylinder, wherein the needle clamping cylinder is arranged on the outer side of the needle clamping cylinder and is used for enabling the needle clamping cylinder to clamp a vertical needle to be processed; the needle clamping cylinder comprises a cylinder main body, a first movable part, a second movable part and a needle body fixing part, wherein the cylinder main body is a cylinder, the needle body fixing part is arranged at the tail end of the cylinder main body, a vertical needle to be processed is arranged in the needle body fixing part in a penetrating mode, and the first movable part and the second movable part are used for clamping or loosening the vertical needle in the needle body fixing part.

Preferably, the second movable member is in a strip shape, the second movable member comprises two opposite ends, and the two ends of the second movable member are respectively contacted with the first movable member and the needle body fixing member; the waist of the second movable member has a support through hole.

Preferably, the syringe body has a circular groove in the axial direction from the tip in the length direction, the circular groove having a depth smaller than the length of the vertical needle; the side wall of the needle cylinder main body is provided with a strip-shaped groove extending along the length direction, the second movable piece is arranged in the strip-shaped groove, the outer side of the waist of the needle cylinder main body is provided with a support ring, the support ring penetrates through a support through hole in the waist of the second movable piece, and the second movable piece rotates by taking the support ring as a fulcrum.

Preferably, the first movable part is arranged at the top end of the syringe main body, the first movable part comprises a pressing part and a first hooking part, the first hooking part is arranged below the pressing part, the pressing part extends out from two sides of the syringe main body, the tail end of the first hooking part is provided with a protrusion, and the protrusion is provided with an inclination angle.

Preferably, the two ends of the second movable member include a first end and a second end, the first end of the second movable member has a second hooking portion pointing to the inner side, the second hooking portion is engaged with the first hooking portion, and the second hooking portion moves up and down under the action of the protrusion of the first hooking portion.

Preferably, the axis of the needle fixing piece is provided with a needle through hole, the tail end of the needle fixing piece is provided with a conical lower counter bore, the top point of the conical lower counter bore is communicated with the needle through hole, and the needle through hole is used for accommodating a vertical needle to be processed; the waist of needle body mounting has fixed recess, fixed recess's tank bottom with the needle body through-hole link up, the second end of second movable part stretches into in the fixed recess to be used for compressing tightly the vertical needle in the needle body through-hole.

Preferably, the grinding center comprises a grinding wheel, a rotating motor and a displacement motor, wherein the grinding wheel is arranged at the output end of the rotating motor, the rotating motor is used for driving the grinding wheel to rotate, and the displacement motor is used for adjusting the horizontal position of the grinding wheel so as to adjust the distance between the grinding wheel and the vertical needle.

Preferably, the grinding center further comprises a grinding center shell and a grinding positioning piece, the grinding center shell covers the grinding wheel, the grinding positioning piece is arranged above the grinding center shell and is provided with a positioning through hole, and a vertical needle to be processed at the tail end of the needle cylinder main body extends into the grinding center shell through the positioning through hole and is ground by the grinding wheel.

Preferably, the clamping mechanism further comprises a first displacement module, the needle cylinder clamping assembly is fixedly arranged on the first displacement module, and the first displacement module is used for driving the overturning cylinder, the rotary grinding cylinder, the upper and lower grinding cylinders and the needle cylinder clamping assembly to move in a vertical plane; the grinding mechanism further comprises a second displacement module, and the second displacement module is used for driving the grinding center to move in a horizontal plane.

In the vertical needle grinding device, when feeding and discharging, the overturning cylinder drives the needle clamping cylinder assembly to overturn up and down by 180 degrees, so that the needle clamping cylinder assembly faces upwards, and a vertical needle to be processed is placed in the needle clamping cylinder assembly; during grinding, the needle cylinder clamping assembly faces the grinding mechanism, and the grinding center grinds the vertical needle to be processed. The vertical needle grinding device does not need to be manually participated in the feeding and discharging and grinding processes, feeding and discharging and grinding processing are automatically completed, waiting time of feeding and discharging workpieces is shortened, accurate operation is achieved, and production efficiency is improved. The product of the utility model has simple structure, easy production, low cost and convenient popularization.

Drawings

Fig. 1 is a schematic view of a vertical needle grinding device according to an embodiment of the present utility model.

Fig. 2 is a schematic structural view of a clamping mechanism of a vertical needle grinding device according to an embodiment of the present utility model.

Fig. 3 is a schematic view of a cartridge of a vertical needle grinding device according to an embodiment of the present utility model.

Fig. 4 is a schematic diagram of a structure of a needle holder of the vertical needle grinding device according to the second embodiment of the present utility model.

Fig. 5 is a schematic structural view of an alignment mechanism of a vertical needle grinding device according to an embodiment of the utility model.

Fig. 6 is a schematic view of a polishing mechanism of a vertical needle polishing apparatus according to an embodiment of the present utility model.

Fig. 7 is a schematic diagram of a polishing mechanism (with the polishing center housing removed) of a vertical needle polishing apparatus according to an embodiment of the present utility model.

Detailed Description

The present utility model will be described in detail with reference to specific embodiments and drawings.

Referring to fig. 1 and 2, a vertical needle grinding device 100 according to an embodiment of the present utility model is provided for grinding the tip of a vertical needle, and includes a vertical needle clamping mechanism 10 and a grinding mechanism 40, where the clamping mechanism 10 includes a turning cylinder 14, a rotary grinding cylinder 15, an up-down grinding cylinder 16, and a needle clamping cylinder assembly 20, the turning cylinder 14 is used for driving the needle clamping cylinder assembly 20 to turn up and down by 180 degrees during feeding and discharging, the grinding mechanism 40 includes a grinding center 42, and the rotary grinding cylinder 15 and the up-down grinding cylinder 16 are respectively used for driving the needle clamping cylinder assembly 20 to rotate and move up and down, so that the vertical needle clamped in the needle clamping cylinder assembly 20 is ground by the grinding center 42.

Specifically, the up-down grinding cylinder 16 is used to drive the up-down fine adjustment of the cartridge assembly 20 during grinding, so that the grinding portion of the vertical needle contacts the grinding center 42.

Preferably, referring to fig. 3 and 4, the needle clamping cylinder assembly 20 includes a needle clamping cylinder 21 and a needle clamping cylinder 22, wherein the needle clamping cylinder 21 is disposed outside the needle clamping cylinder 22, for clamping the vertical needle to be processed by the needle clamping cylinder 22; the needle clamping cylinder 22 comprises a cylinder main body 23, a first movable piece 24, a second movable piece 25 and a needle fixing piece 26, wherein the cylinder main body 23 is in a cylinder shape, the needle fixing piece 26 is arranged at the tail end of the cylinder main body 23, a vertical needle to be processed is arranged in the needle fixing piece 26 in a penetrating mode, and the first movable piece 24 and the second movable piece 25 are used for clamping or loosening the vertical needle in the needle fixing piece 26. The second movable member 25 is in a strip shape, the second movable member 25 includes two opposite ends, and the two ends of the second movable member 25 are respectively contacted with the first movable member 24 and the needle body fixing member 26; the waist of the second movable member 25 has a support through hole.

Specifically, in the present embodiment, two sides of the needle cylinder 22 are respectively provided with a needle clamping cylinder 21,

preferably, the cylinder body 23 has a circular groove in the length direction from the tip in the axial direction, the depth of the circular groove being smaller than the length of the vertical needle; the side wall of the syringe main body 23 is provided with a strip-shaped groove extending along the length direction, the second movable piece 25 is arranged in the strip-shaped groove, the outer side of the waist of the syringe main body 23 is provided with a support ring 27, the support ring 27 is arranged through a support through hole at the waist of the second movable piece 25 in a penetrating manner, and the second movable piece 25 rotates by taking the support ring 27 as a fulcrum. The first movable part 24 is disposed at the top end of the syringe main body 23, the first movable part 24 includes a pressing portion and a first hook portion, the first hook portion is disposed below the pressing portion, the pressing portion extends from two sides of the syringe main body 23, a protrusion is disposed at the end of the first hook portion, and the protrusion has an inclination angle. The two ends of the second movable member 25 include a first end and a second end, the first end of the second movable member 25 has a second hooking portion pointing to the inner side, the second hooking portion is engaged with the first hooking portion, and the second hooking portion moves up and down under the action of the protrusion of the first hooking portion.

Specifically, the first end of the second movable member 25 is disposed on the first movable member 24 side, and the second end of the second movable member 25 is disposed on the needle body fixing member 26 side.

Preferably, the axis of the needle fixing piece 26 is provided with a needle through hole, the tail end of the needle fixing piece 26 is provided with a conical lower counter bore, the top point of the conical lower counter bore is communicated with the needle through hole, and the needle through hole is used for accommodating a vertical needle to be processed; the waist of the needle body fixing piece 26 is provided with a fixing groove, the bottom of the fixing groove is communicated with the needle body through hole, and the second end of the second movable piece 25 stretches into the fixing groove and is used for pressing the vertical needle in the needle body through hole.

Specifically, the second end of the second movable member 25 has a bend extending inward, and the outer side of the bend is sleeved with a silicone sleeve, so that the vertical needle is damaged by placement.

Specifically, the end of the syringe main body 23 has a step, the end of the bar-shaped groove points to the step, the top surface of the step is a plane passing through the axis of the syringe main body 23, the needle fixing piece 26 is arranged on the top surface of the step, and the axis of the needle fixing piece 26 coincides with the axis of the syringe main body 23.

In this embodiment, the outer side of the step at the end of the syringe body 23 is a conical surface, so that the syringe body 23 is pen-shaped.

Specifically, the top end of the syringe main body 23 has a pressing through hole, the first movable member 24 is disposed in the pressing through hole, the pressing portion of the first movable member 24 extends out of the syringe main body 23 through the pressing through hole, and the first hook portion is disposed in the pressing through hole and is engaged with the second hook portion of the second movable member 25.

Specifically, the support ring 27 is hooped on the outer side of the syringe main body 23 and is inserted into a support through hole of the second movable member 25, the second movable member 25 rotates around the support ring 27, and the first end and the second end of the second movable member 25 can move up and down.

Specifically, during feeding, the vertical needle to be processed needs to be inserted into the needle clamping cylinder 22, the needle clamping cylinder 21 presses down the first movable member 24, so that the first movable member 24 moves towards the tail end of the needle cylinder main body 23, the second hooking portion of the second movable member 25 is loosened from the engagement of the first hooking portion, the first end of the second movable member 25 moves downward, the second end of the second movable member 25 moves upward, and the vertical needle to be processed penetrates into the needle body fixing member 26 from the needle body through hole. The needle clamping cylinder 21 drives the first movable member 24 to move upwards, the first hook is fixedly engaged with the second hook portion, the first end of the second movable member moves upwards along the convex inclination angle of the first hook portion, and the second end of the second movable member 25 moves downwards, so that the second end clamps the vertical needle penetrating through the needle body fixing member 26.

During blanking, the movement process of each component of the needle clamping cylinder 22 is the same, and when the second end of the second movable part 25 moves upwards, the processed vertical needle is taken out.

Preferably, the clamping mechanism 10 further includes an alignment module 30, the alignment module 30 is disposed above the needle cylinder assembly 20, referring to fig. 5, the alignment module 30 includes an alignment platform 31, a Y-axis fine adjustment module 33, and a Z-axis fine adjustment module 32, the Z-axis fine adjustment module 32 is disposed below the alignment platform 31, and the Y-axis fine adjustment module 33 is disposed above the alignment platform 31.

Specifically, the alignment mechanism 30 is used for positioning during feeding of the needle cylinder 22. The Y-axis fine adjustment module 33 is provided with an alignment arm, and the end of the alignment arm is provided with an alignment hole.

During feeding, the overturning cylinder 14 drives the needle clamping cylinder 22 to overturn upwards, the Y-axis fine adjustment module 33 drives the alignment arm to move forwards, so that the alignment hole is sleeved at the tail end of the needle cylinder main body 23 of the needle clamping cylinder 22, and the alignment arm is used for positioning the needle clamping cylinder 22. After the vertical needle to be processed is inserted into the needle clamping cylinder 22, the Z-axis fine adjustment module 32 and the Y-axis fine adjustment module 33 respectively drive the alignment arm to ascend and retreat, the overturning cylinder 14 drives the needle clamping cylinder 22 to overturn downwards, and the Z-axis fine adjustment module 32 drives the alignment arm to reset.

Preferably, referring to fig. 6 and 7, the grinding center 42 includes a grinding wheel 421, a rotating motor 422, and a displacement motor 423, wherein the grinding wheel 421 is disposed at an output end of the rotating motor 422, the rotating motor 422 is used for driving the grinding wheel 421 to rotate, and the displacement motor 423 is used for adjusting a horizontal position of the grinding wheel 421 to adjust a distance between the grinding wheel 421 and a vertical needle.

Preferably, the grinding center 42 further includes a grinding center 42 housing and a grinding positioning member 424, the grinding center 42 housing covers the grinding wheel 421, the grinding positioning member 424 is disposed above the grinding center 42 housing, the grinding positioning member 424 has a positioning through hole, and a vertical needle to be processed at the end of the syringe main body 23 extends into the grinding center 42 housing through the positioning through hole, and is ground by the grinding wheel 421.

Specifically, a strip-shaped hole is formed above the grinding center 42, and the positioning through hole on the grinding positioning member 424 is disposed corresponding to the position of the strip-shaped hole.

Specifically, in the present embodiment, the grinding center 42 is provided with two grinding wheels 421, and the two grinding wheels 421 simultaneously grind one vertical needle, so that the working efficiency of the apparatus can be improved.

Preferably, the clamping mechanism 10 further includes a first displacement module 11, the needle cylinder assembly 20 is fixedly disposed on the first displacement module 11, and the first displacement module 11 is configured to drive the overturning cylinder 14, the rotary grinding cylinder 15, the up-down grinding cylinder 16, and the needle cylinder assembly 20 to move in a vertical plane; the grinding mechanism 40 further includes a second displacement module 41, where the second displacement module 41 is configured to drive the grinding center 42 to move in a horizontal plane.

Specifically, the first displacement module 11 includes an X-axis module 12 and a Z-axis module 13 that are disposed vertically in a vertical plane, and the overturning cylinder 14, the rotary grinding cylinder 15, the up-down grinding cylinder 16, and the needle cylinder clamping assembly 20 are sequentially disposed at an output end of the Z-axis module 13.

Specifically, the second displacement module 41 includes an XY cross platform, the grinding center 42 is disposed above the XY cross platform, and the XY cross platform drives the grinding center 42 to move in the horizontal directions of the X axis and the Y axis.

Specifically, during feeding, the first displacement module 11 moves the needle clamping cylinder assembly 20 to the upper and lower feeding stations, the overturning cylinder 14 overturns the needle clamping cylinder assembly 20 upwards by 180 degrees, so that the tail end of the needle clamping cylinder 22 is upwards, the needle clamping cylinder 22 is driven by the needle clamping cylinder 21 to complete feeding operation, vertical needles to be processed are clamped in the needle clamping cylinder 22, the overturning cylinder 14 overturns the needle clamping cylinder assembly 20 downwards by 180 degrees, the first displacement module 11 moves the needle clamping cylinder assembly 20 to the grinding stations, and the grinding center 42 grinds the vertical needles.

After finishing the grinding process, the first displacement module 11 moves the needle clamping cylinder assembly 20 to the upper blanking station, the overturning cylinder 14 overturns the needle clamping cylinder assembly 20 upwards by 180 degrees, so that the tail end of the needle clamping cylinder 22 is upwards, and after finishing the blanking operation and the feeding operation under the driving of the needle clamping cylinder 21, the needle clamping cylinder assembly 20 overturns downwards by 180 degrees under the driving of the overturning cylinder 14 and moves to the grinding station again to perform the next grinding operation.

During grinding, the second displacement module 41 drives the grinding center 42 to move to a grinding station, the displacement motor 423 adjusts the distance between the grinding wheel 421 and the vertical needle to make the grinding wheel 421 adhere to the surface of the vertical needle, and the rotary motor 422 drives the grinding wheel 421 to rotate; the rotary grinding cylinder 15 drives the needle holder 22 to rotate, so that the vertical needle rotates and is ground on the grinding wheel 421; the up-down grinding cylinder 16 drives the needle clamping cylinder 22 to finely adjust up-down, so as to control the contact surface between the vertical needle and the grinding wheel 421, and make the vertical needle and the grinding wheel 421 have proper grinding angle and grinding force.

In the vertical needle grinding device 100, when feeding and discharging, the overturning cylinder 14 drives the needle clamping cylinder assembly 20 to overturn up and down by 180 degrees, so that the needle clamping cylinder assembly 20 faces upwards, and a vertical needle to be processed is placed in the needle clamping cylinder assembly 20; during grinding, the needle cylinder assembly 20 is directed to the grinding mechanism 40, and the grinding center 42 grinds the vertical needle to be processed. The vertical needle grinding device does not need to be manually participated in the feeding and discharging and grinding processes, feeding and discharging and grinding processing are automatically completed, waiting time of feeding and discharging workpieces is shortened, accurate operation is achieved, and production efficiency is improved. The product of the utility model has simple structure, easy production, low cost and convenient popularization.

It should be noted that the present utility model is not limited to the above embodiments, and those skilled in the art can make other changes according to the inventive spirit of the present utility model, and these changes according to the inventive spirit of the present utility model should be included in the scope of the present utility model as claimed.

Claims (10)

1. The utility model provides a vertical needle grinder for the pointed end of vertical needle grinds, its characterized in that, including fixture and the grinding mechanism of vertical needle, fixture includes upset cylinder, rotatory grinding cylinder, upper and lower grinding cylinder and presss from both sides the cylinder subassembly, the upset cylinder is used for driving when unloading presss from both sides the cylinder subassembly and overturn 180 degrees from both sides the cylinder subassembly from both sides, grinding mechanism includes grinding center, rotatory grinding cylinder with it is used for driving respectively to go up and down to grind the cylinder subassembly is rotatory and reciprocate, makes the vertical needle of centre gripping in the cylinder subassembly presss from both sides the cylinder subassembly is ground by grinding center.

2. The vertical needle grinding device according to claim 1, wherein the needle clamping cylinder assembly comprises a needle clamping cylinder and a needle clamping cylinder, the needle clamping cylinder is arranged outside the needle clamping cylinder and is used for enabling the needle clamping cylinder to clamp the vertical needle to be processed; the needle clamping cylinder comprises a cylinder main body, a first movable part, a second movable part and a needle body fixing part, wherein the cylinder main body is a cylinder, the needle body fixing part is arranged at the tail end of the cylinder main body, a vertical needle to be processed is arranged in the needle body fixing part in a penetrating mode, and the first movable part and the second movable part are used for clamping or loosening the vertical needle in the needle body fixing part.

3. The vertical needle grinding device according to claim 2, wherein the second movable member has a strip shape, the second movable member includes two opposite ends, and the two ends of the second movable member are respectively contacted with the first movable member and the needle body fixing member; the waist of the second movable member has a support through hole.

4. A vertical needle grinding device according to claim 3, characterized in that the cylinder body has a circular groove in the axial direction from the tip in the length direction, the depth of the circular groove being smaller than the length of the vertical needle; the side wall of the needle cylinder main body is provided with a strip-shaped groove extending along the length direction, the second movable piece is arranged in the strip-shaped groove, the outer side of the waist of the needle cylinder main body is provided with a support ring, the support ring penetrates through a support through hole in the waist of the second movable piece, and the second movable piece rotates by taking the support ring as a fulcrum.

5. The vertical needle grinding device according to claim 4, wherein the first movable member is disposed at a top end of the syringe body, the first movable member includes a pressing portion and a first hooking portion, the first hooking portion is disposed below the pressing portion, the pressing portion protrudes from two sides of the syringe body, and a protrusion is disposed at a distal end of the first hooking portion, and has an inclination angle.

6. The vertical needle grinding apparatus according to claim 5, wherein both ends of the second movable member include a first end and a second end, the first end of the second movable member has a second hooking portion directed inward, the second hooking portion is engaged with the first hooking portion, and the second hooking portion moves up and down by the protrusion of the first hooking portion.

7. The vertical needle grinding device according to claim 6, wherein the axis of the needle fixing piece is provided with a needle through hole, the tail end of the needle fixing piece is provided with a conical lower counter bore, the top point of the conical lower counter bore is communicated with the needle through hole, and the needle through hole is used for accommodating a vertical needle to be processed; the waist of needle body mounting has fixed recess, fixed recess's tank bottom with the needle body through-hole link up, the second end of second movable part stretches into in the fixed recess to be used for compressing tightly the vertical needle in the needle body through-hole.

8. The vertical needle grinding device according to claim 2, wherein the grinding center comprises a grinding wheel, a rotating motor and a displacement motor, the grinding wheel is arranged at an output end of the rotating motor, the rotating motor is used for driving the grinding wheel to rotate, and the displacement motor is used for adjusting the horizontal position of the grinding wheel so as to adjust the distance between the grinding wheel and the vertical needle.

9. The vertical needle grinding device according to claim 8, wherein the grinding center further comprises a grinding center housing and a grinding positioning piece, the grinding center housing covers the grinding wheel, the grinding positioning piece is arranged above the grinding center housing, the grinding positioning piece is provided with a positioning through hole, and the vertical needle to be processed at the tail end of the needle cylinder main body extends into the grinding center housing through the positioning through hole and is ground by the grinding wheel.

10. The vertical needle grinding device of claim 1, wherein the clamping mechanism further comprises a first displacement module, the needle cylinder clamping assembly is fixedly arranged on the first displacement module, and the first displacement module is used for driving the overturning cylinder, the rotary grinding cylinder, the upper and lower grinding cylinders and the needle cylinder clamping assembly to move in a vertical plane; the grinding mechanism further comprises a second displacement module, and the second displacement module is used for driving the grinding center to move in a horizontal plane.