阅读说明：本技术 一种金属精密加工用快速装夹装置 (Rapid clamping device for metal precision machining ) 是由 周承林 邵志杰 于 2021-07-26 设计创作，主要内容包括：本发明涉及硬盘外壳加工相关技术领域,具体公开了一种金属精密加工用快速装夹装置,包括底座和设置在底座上的定位槽,且底座的座体内部开设有气腔；通过在装夹装置的底座中开设气腔,并在底座上的定位槽的底面开设有第一槽口,并在第一槽口的底面开设第二槽口,并在第二槽口的底面开设第三槽口,并在第一槽口中设置密封环,并将气腔一端的第一气管与抽气设备的进气端相连接,从而通过抽气设备的抽气作用让气腔中形成负压,从而通过负压吸附的形式对待加工硬盘外壳进行吸附定位,从而保证待加工硬盘外壳在加工过程的稳定性,其相较于传统夹持定位,其可以有效避免压力过大而导致待加工硬盘外壳出现变形现象,从而影响到产品的质量。(The invention relates to the technical field related to hard disk shell processing, and particularly discloses a quick clamping device for metal precision processing, which comprises a base and a positioning groove arranged on the base, wherein an air cavity is formed in the base body of the base; through setting up the air cavity in the base at clamping device, and first notch has been seted up to the bottom surface of constant head tank on the base, and set up the second notch in the bottom surface of first notch, and set up the third notch in the bottom surface of second notch, and set up the sealing ring in first notch, and be connected the first trachea of air cavity one end and air exhaust equipment's inlet end, thereby form the negative pressure in letting the air cavity through air exhaust equipment's pumping action, thereby treat through the absorbent form of negative pressure and adsorb the location, thereby guarantee to treat the stability of processing hard disk shell at the course of working, it is compared in traditional centre gripping location, it can effectively avoid pressure too big and lead to treating that processing hard disk shell appears the phenomenons, thereby influence the quality of product.)

1. The utility model provides a metal precision finishing is with quick clamping device, includes base (1) and constant head tank (2) of setting on base (1), its characterized in that: the base (1) is of a rectangular base structure, an air cavity (3) is formed in the base of the base (1), a first air pipe (14), a second air pipe (15) and a wiring pipeline (16) are reserved on one side of the air cavity (3), a first notch (4) is formed in the bottom surface of a notch of the positioning groove (2), a second notch is formed in the bottom surface of the first notch (4), a third notch (5) is formed in the bottom surface of the second notch, a sealing ring (6) is arranged in the first notch (4), a protective screen (7) is arranged in the second notch, a support (8) is arranged on the rear side edge of the base (1), a mounting hole is formed in a transverse plate of the support (8), a ball bearing is fixedly arranged in the mounting hole, a rotating shaft (9) is fixedly arranged in the inner ring of the ball bearing, and a rotating plate (10) is arranged at the upper end of the rotating shaft, one end of the rotating plate (10) is fixedly provided with a telescopic electric cylinder (12), and a top plate (13) is arranged on a telescopic rod of the telescopic electric cylinder (12).

2. The quick clamping device for metal precision machining according to claim 1, characterized in that: the size of the positioning groove (2) is matched with the size of the outline of the hard disk shell to be processed.

3. The quick clamping device for metal precision machining according to claim 1, characterized in that: roof (13) are for being located constant head tank (2) central point and put and set up directly over, and the lower extreme of pivot (9) is for driving through servo motor, flexible electric jar (12), servo motor all carry out signal of telecommunication with the PLC control module on the clamping device and be connected.

4. The quick clamping device for metal precision machining according to claim 1, characterized in that: the sealing ring (6) is a rubber ring, and the upper surface of the sealing ring (6) is higher than the bottom surface of the notch of the positioning groove (2).

5. The quick clamping device for metal precision machining according to claim 1, characterized in that: and an electronic barometer is arranged on the inner side wall of the air cavity (3) and is in electric signal connection with a PLC (programmable logic controller) control module on the clamping device.

6. The quick clamping device for metal precision machining according to claim 1, characterized in that: the protective net (7) is a high-density steel wire net, round holes are formed in the protective net (7) located at four corner positions of the positioning groove (2), and a pressure detection assembly (17) is arranged in a third notch (5) where the protective net (7) with the round holes is located.

7. The quick clamping device for metal precision machining according to claim 6, characterized in that: the pressure detection component (17) is composed of a bottom plate (18), an extension tube (19), an extension rod (20), a connecting plate (21), a mandril (22), a supporting spring (23), a piezoresistor (24) and a connecting spring (25), the bottom plate (18) and the telescopic pipe (19) are integrally formed, the telescopic rod (20) is movably arranged in the inner cavity of the telescopic pipe (19), the bottom plate (18) and the connecting plate (21) are connected through a supporting spring (23), the diameter of the mandril (22) is matched with the size of the round hole on the protective net (7), the ejector rods (22) are arranged by penetrating through round holes on the protective net (7), the connecting spring (25) is connected with the lower end of the telescopic rod (20) through an upper connecting plate (26), the lower end of the connecting spring (25) is connected with a lower connecting plate (27).

8. The quick clamping device for metal precision machining according to claim 7, characterized in that: when the supporting spring (23) and the connecting spring (25) are both in a reset state, the upper end face of the ejector rod (22) is higher than the upper side face of the sealing ring (6), the upper end face of the ejector rod (22) is lower than the upper surface of the base (1), and at the moment, the lower connecting plate (27) is not in contact with the piezoresistor (24).

9. The quick clamping device for metal precision machining according to claim 1, characterized in that: the other end of first trachea (14) is connected with air extraction equipment's inlet end, is provided with the check valve on its first trachea (14), the end of second trachea (15) is provided with the relief valve, and the relief valve is electromagnetic air valve, and the PLC control module on relief valve and the clamping device carries out signal of telecommunication and be connected, and gets into the wire in air cavity (3) and set up for passing line pipeline (16), and seal the processing for passing sealed glue between wire and line pipeline (16).

Technical Field

The invention relates to the technical field related to hard disk shell machining, in particular to a quick clamping device for metal precision machining.

Background

The computer hard disk is the most important storage device of the computer. The hard disk consists of one or more aluminum or glass disks covered with ferromagnetic material, the structures are all arranged in the hard disk shell, and the metal material has better heat dissipation, so the metal shell is usually adopted for the hard disk structure with serious heat generation, while the processing of the mounting hole of the internal thread on the traditional hard disk shell adopts a tapping machine to process, the structure for positioning the hard disk shell on the traditional tapping machine is simpler, the hard disk casing is positioned and fixed by adopting a simple clamping structure, but the hard disk casing is easy to deform due to overlarge clamping pressure, and the positioning stability of the hard disk casing is poor due to the overlarge clamping pressure, therefore, the invention provides a quick clamping device for metal precision machining to solve the problem.

Disclosure of Invention

The invention aims to provide a quick clamping device for metal precision machining, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a quick clamping device for metal precision machining comprises a base and a positioning groove arranged on the base, wherein the base is of a rectangular base structure, an air cavity is formed in the base of the base, a first air pipe, a second air pipe and a wiring pipeline are reserved on one side of the air cavity, a first notch is formed in the bottom surface of the notch of the positioning groove, a second notch is formed in the bottom surface of the first notch, a third notch is formed in the bottom surface of the second notch, a sealing ring is arranged in the first notch, a protective net is arranged in the second notch, a support is arranged on the rear side edge of the base, a mounting hole is formed in a transverse plate of the support, a ball bearing is fixedly arranged in the mounting hole, a rotating shaft is fixedly arranged in the inner ring of the ball bearing, a rotating plate is arranged at the upper end of the rotating shaft, and a telescopic electric cylinder is fixedly arranged at one end of the rotating plate, and a top plate is arranged on a telescopic rod of the telescopic electric cylinder.

Preferably, the size of the positioning groove is matched with the size of the outline of the hard disk shell to be processed.

Preferably, the top plate is arranged right above the central position of the positioning groove, the lower end of the rotating shaft is driven by a servo motor, and the telescopic electric cylinder and the servo motor are connected with a PLC control module on the clamping device in an electric signal mode.

Preferably, the sealing ring is a rubber ring, and the upper surface of the sealing ring is higher than the bottom surface of the notch of the positioning groove.

Preferably, an electronic barometer is arranged on the inner side wall of the air cavity and is in electric signal connection with a PLC (programmable logic controller) control module on the clamping device.

Preferably, the protection network is high density mesh wire net, and all seted up the round hole on being located the four turning positions of constant head tank protective net, and set up the protection network that has the round hole and be provided with the pressure measurement subassembly in the third notch at place.

Preferably, the pressure detection subassembly comprises bottom plate, flexible pipe, telescopic link, connecting plate, ejector pin, supporting spring, piezo-resistor and connecting spring combination, be integrated into one piece between bottom plate and the flexible pipe, the telescopic link sets up among the inner chamber of flexible pipe for the activity, be connected through supporting spring between bottom plate and the connecting plate, the diameter of ejector pin is identical with the size of round hole on the protection network, and the ejector pin sets up for passing the round hole on the protection network, connecting spring is connected with the lower extreme of telescopic link through upper connecting plate, connecting spring's lower extreme is connected with next connecting plate.

Preferably, when the supporting spring and the connecting spring are both in the reset state, the upper end surface of the ejector rod is higher than the upper side surface of the sealing ring, the upper end surface of the ejector rod is lower than the upper surface of the base, and the lower connecting plate is not in contact with the piezoresistor at the moment.

Preferably, the other end of the first air pipe is connected with the air inlet end of the air extraction device, a check valve is arranged on the first air pipe, a pressure release valve is arranged at the tail end of the second air pipe and is an electromagnetic air valve, the pressure release valve is in electrical signal connection with a PLC (programmable logic controller) control module on the clamping device, a wire entering the air cavity is arranged for penetrating through the routing pipeline, and sealing treatment is carried out between the wire and the routing pipeline through sealant.

Compared with the prior art, the invention has the beneficial effects that:

1. the clamping device comprises a base, a clamping device and a sealing ring, wherein an air cavity is formed in the base of the clamping device, a first notch is formed in the bottom surface of a positioning groove in the base, a second notch is formed in the bottom surface of the first notch, a third notch is formed in the bottom surface of the second notch, the sealing ring is arranged in the first notch, and a first air pipe at one end of the air cavity is connected with an air inlet end of air extraction equipment, so that negative pressure is formed in the air cavity through the air extraction action of the air extraction equipment, the hard disk shell to be processed is adsorbed and positioned in a negative pressure adsorption mode, the stability of the hard disk shell to be processed in the processing process is ensured, and compared with the traditional clamping and positioning mode, the phenomenon that the hard disk shell to be processed is deformed due to overlarge pressure can be effectively avoided, and the quality of a product is influenced;

2. and through set up the electronic barometer on the inside wall of air cavity to monitor the inside atmospheric pressure value of air cavity, thereby avoid atmospheric pressure not enough and lead to its adsorption stability not enough, thereby lead to treating that processing hard disk shell appears the migration, thereby influence the processing effect.

3. And through setting up the pressure measurement subassembly that comprises bottom plate, flexible pipe, telescopic link, connecting plate, ejector pin, supporting spring, piezo-resistor and connecting spring combination to when guaranteeing that the roof is treating to process the hard disk shell and exert pressure, it treats that the processing hard disk shell can carry out inseparable contact with the sealing ring, thereby guarantees the leakproofness of its both hookup location departments, thereby guarantees to treat the location effect of processing hard disk shell.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a half sectional view of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of a pressure sensing assembly according to the present invention;

fig. 5 is an enlarged view of the structure at B in fig. 4.

In the figure: the device comprises a base 1, a positioning groove 2, an air cavity 3, a first notch 4, a third notch 5, a sealing ring 6, a protective net 7, a support 8, a rotating shaft 9, a rotating plate 10, a telescopic electric cylinder 12, a top plate 13, a first air pipe 14, a second air pipe 15, a wiring pipeline 16, a pressure detection assembly 17, a bottom plate 18, a telescopic pipe 19, a telescopic rod 20, a connecting plate 21, a push rod 22, a supporting spring 23, a piezoresistor 24, a connecting spring 25, an upper connecting plate 26 and a lower connecting plate 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a quick clamping device for metal precision machining comprises a base 1 and a positioning groove 2 arranged on the base 1, wherein the base 1 is of a rectangular base structure, an air cavity 3 is formed in the base of the base 1, a first air pipe 14, a second air pipe 15 and a wiring pipeline 16 are reserved on one side of the air cavity 3, a first notch 4 is formed in the bottom surface of a notch of the positioning groove 2, a second notch is formed in the bottom surface of the first notch 4, a third notch 5 is formed in the bottom surface of the second notch, a sealing ring 6 is arranged in the first notch 4, a protective net 7 is arranged in the second notch, a support 8 is arranged on the rear side edge of the base 1, a mounting hole is formed in a transverse plate of the support 8, a ball bearing is fixedly arranged in the mounting hole, a rotating shaft 9 is fixedly arranged in the inner ring of the ball bearing, a rotating plate 10 is arranged at the upper end of the rotating shaft, and a telescopic electric cylinder 12 is fixedly arranged at one end of the rotating plate 10, install roof 13 on the telescopic link of flexible electric jar 12, open air cavity 3 through base 1 at the clamping device, and first notch 4 has been seted up to the bottom surface of constant head tank 2 on base 1, and set up the second notch in the bottom surface of first notch 4, and set up third notch 5 in the bottom surface of second notch, and set up sealing ring 6 in first notch 4, and be connected the first trachea 14 of air cavity 3 one end with the inlet end of air exhaust equipment, thereby form the negative pressure in letting air cavity 3 through air exhaust equipment's pumping action, thereby treat through the absorbent form of negative pressure and adsorb the location of processing hard disk shell, thereby guarantee to treat the stability of processing hard disk shell at the course of working, it is compared in traditional centre gripping location, it can effectively avoid the pressure too big and lead to treating that processing hard disk shell appears the deformation phenomenon, thereby influence the quality of product.

The size of the positioning groove 2 is matched with the outline size of the hard disk shell to be processed, so that the hard disk shell to be processed can be conveniently initially positioned;

the top plate 13 is arranged right above the central position of the positioning groove 2, the lower end of the rotating shaft 9 is driven by a servo motor, and the telescopic electric cylinder 12 and the servo motor are in electric signal connection with a PLC control module on the clamping device;

the sealing ring 6 is a rubber ring, and the upper surface of the sealing ring 6 is higher than the bottom surface of the notch of the positioning groove 2;

the inner side wall of the air cavity 3 is provided with an electronic barometer, the electronic barometer is in electrical signal connection with a PLC (programmable logic controller) control module on the clamping device, and the electronic barometer is arranged on the inner side wall of the air cavity 3, so that the air pressure value in the air cavity 3 is monitored, and the phenomenon that the adsorption stability is insufficient due to insufficient air pressure, so that the hard disk shell to be processed is deflected, and the processing effect is influenced is avoided;

the protective net 7 is a high-density mesh steel wire net, round holes are formed in the protective net 7 at the positions of four corners of the positioning groove 2, a pressure detection assembly 17 is arranged in the third notch 5 where the protective net 7 with the round holes is located, and foreign matters are prevented from falling into the air cavity 3 by arranging the protective net 7;

the pressure detection assembly 17 is composed of a bottom plate 18, an extension tube 19, an extension rod 20, a connecting plate 21, a top rod 22, a supporting spring 23, a piezoresistor 24 and a connecting spring 25, wherein the bottom plate 18 and the extension tube 19 are integrally formed, the extension rod 20 is movably arranged in an inner cavity of the extension tube 19, the bottom plate 18 and the connecting plate 21 are connected through the supporting spring 23, the diameter of the top rod 22 is matched with the size of a round hole in the protective net 7, the top rod 22 penetrates through the round hole in the protective net 7, the connecting spring 25 is connected with the lower end of the extension rod 20 through an upper connecting plate 26, and the lower end of the connecting spring 25 is connected with a lower connecting plate 27;

when the supporting spring 23 and the connecting spring 25 are both in a reset state, the upper end surface of the ejector rod 22 is higher than the upper side surface of the sealing ring 6, the upper end surface of the ejector rod 22 is lower than the upper surface of the base 1, and the lower connecting plate 27 is not in contact with the piezoresistor 24 at the moment, and by arranging the pressure detection assembly 17 which is formed by combining the bottom plate 18, the telescopic pipe 19, the telescopic rod 20, the connecting plate 21, the ejector rod 22, the supporting spring 23, the piezoresistor 24 and the connecting spring 25, when the top plate 13 applies pressure to the hard disk shell to be processed, the hard disk shell to be processed can be in close contact with the sealing ring 6, so that the sealing performance of the connecting position of the top plate 13 and the hard disk shell to be processed is ensured, and the positioning effect of the hard disk shell to be processed is ensured;

the other end of the first air pipe 14 is connected with the air inlet end of the air extraction equipment, a check valve is arranged on the first air pipe 14, a pressure release valve is arranged at the tail end of the second air pipe 15, the pressure release valve is an electromagnetic air valve and is in electrical signal connection with a PLC (programmable logic controller) control module on the clamping device, a wire entering the air cavity 3 is arranged by penetrating through the routing pipeline 16, and sealing treatment is carried out between the wire and the routing pipeline 16 through sealant so as to ensure the sealing property inside the air cavity 3;

the working principle is as follows: an air cavity 3 is arranged in a base 1 of the clamping device, a first notch 4 is arranged on the bottom surface of a positioning groove 2 on the base 1, a second notch is arranged on the bottom surface of the first notch 4, a third notch 5 is arranged on the bottom surface of the second notch, a sealing ring 6 is arranged in the first notch 4, a first air pipe 14 at one end of the air cavity 3 is connected with an air inlet end of an air extracting device, so that negative pressure is formed in the air cavity 3 through the air extracting action of the air extracting device, the hard disk shell to be processed is adsorbed and positioned in a negative pressure adsorption mode, the stability of the hard disk shell to be processed in the processing process is ensured, compared with the traditional clamping and positioning mode, the phenomenon that the hard disk shell to be processed is deformed due to over-high pressure can be effectively avoided, the quality of a product is influenced, and an electronic barometer is arranged on the inner side wall of the air cavity 3, so that the air pressure value inside the air cavity 3 is monitored, therefore, the situation that the adsorption stability is insufficient due to insufficient air pressure, and the hard disk shell to be processed deviates and the processing effect is influenced is avoided, and the pressure detection assembly 17 which is formed by combining the bottom plate 18, the telescopic pipe 19, the telescopic rod 20, the connecting plate 21, the ejector rod 22, the supporting spring 23, the piezoresistor 24 and the connecting spring 25 is arranged, so that the hard disk shell to be processed can be in close contact with the sealing ring 6 when the top plate 13 applies pressure to the hard disk shell to be processed, the sealing performance of the connecting position of the hard disk shell to be processed is ensured, the positioning effect of the hard disk shell to be processed is ensured, when the hard disk shell to be processed is actually used, a worker places the hard disk shell to be processed in the positioning groove 2, then drives the servo motor to move the top plate 13 to be right above the hard disk shell to be processed, and then drives the telescopic electric cylinder 12 to move, thereby treat to process the hard disk shell and exert certain pressure to monitor its pressure through pressure measurement subassembly 17, when pressure reaches a definite value, air exhaust equipment starts, thereby take out the gas in air cavity 3 and separate, thereby form the negative pressure in letting air cavity 3, thereby treat to process the hard disk shell and form the location, then flexible electric jar 12 return stroke motion, servo motor redriven, and rotate roof 13 to the opposite side, then treat to process the hard disk shell and carry out the processing operation can.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.