阅读说明：本技术 一种压缩机壳体壳盖加工定位夹具 (Positioning fixture for machining shell cover of compressor shell ) 是由 李凤武 于 2021-09-07 设计创作，主要内容包括：本发明涉及钻孔夹具领域,特别涉及一种压缩机壳体壳盖加工定位夹具,包括支脚、空心支撑台、调节装置、夹紧定位装置和辅助清理装置；本发明可以解决现有的夹具在使用过程中通常会遇到以下问题：a.现有的夹具在对壳盖进行夹紧时为刚性夹紧,容易在壳盖的表面留下夹痕甚至造成壳盖出现变形的情况,不仅降低了壳盖的外观质量,还容易导致加工后的压缩机壳体壳盖无法进行安装；b.钻孔过程中,会有大量冷却液和碎屑附着在夹具表面,现有的夹具在使用时,只能通过人工对夹具表面进行清理,不仅会增加工人的劳动强度,且清理效率较低,从而影响了壳盖的加工效率。(The invention relates to the field of drilling fixtures, in particular to a positioning fixture for machining a shell cover of a compressor shell, which comprises support legs, a hollow support table, an adjusting device, a clamping and positioning device and an auxiliary cleaning device, wherein the support legs are arranged on the support table; the invention can solve the following problems in the use process of the existing clamp: a. the existing clamp is rigidly clamped when the shell cover is clamped, so that clamping marks are easily left on the surface of the shell cover, even the shell cover is deformed, the appearance quality of the shell cover is reduced, and the machined shell cover of the compressor shell cannot be installed easily; b. in the drilling process, a large amount of cooling liquid and chips are attached to the surface of the clamp, the existing clamp can only be cleaned through manual work when in use, the labor intensity of workers is increased, the cleaning efficiency is low, and the processing efficiency of the shell cover is influenced.)

1. The utility model provides a compressor housing cap processing positioning fixture, includes stabilizer blade (1), hollow brace table (2), adjusting device (3), presss from both sides tight positioner (4) and supplementary cleaning device (5), its characterized in that: the upper end of the support leg (1) is fixedly provided with a hollow support table (2), an adjusting device (3) is arranged inside the hollow support table (2), the upper end of the adjusting device (3) is fixedly connected with a clamping and positioning device (4), the lower end face of the clamping and positioning device (4) is in sliding fit with the hollow support table (2), and the rear end of the hollow support table (2) is provided with an auxiliary cleaning device (5);

the clamping and positioning device (4) comprises a concave base (41), a clamping and positioning mechanism (42), a hollow disc (43), a pointer (44), an annular dividing disc (45) and a fixing rod (46), wherein the upper end of the adjusting device (3) is fixedly connected with the concave base (41), the lower end face of the concave base (41) is in sliding fit with the hollow supporting table (2), the concave base (41) is of a hollow structure, the hollow disc (43) is fixedly arranged in the middle of the concave base (41), the clamping and positioning mechanism (42) is arranged inside the concave base (41) and the hollow disc (43), the pointer (44) is fixedly arranged in the middle of the left side wall and the right side wall of the concave base (41), the annular dividing disc (45) is arranged below the pointer (44), and the fixing rod (46) is symmetrically arranged at the positions, close to the left end and the right end, of the lower end face of the annular dividing disc (45), the lower end of the fixed rod (46) is fixedly arranged on the hollow supporting platform (2).

2. The compressor housing cover machining positioning fixture as claimed in claim 1, wherein: the adjusting device (3) comprises a rotating motor (31), a driving gear (32), a driven gear (33), a rotating shaft (34), a limiting through hole (35), a belt pulley (36), an annular belt (37) and a limiting mechanism (38), wherein the position, close to the front end, of the lower end inside the hollow supporting platform (2) is provided with the rotating motor (31) through a motor base, the driving gear (32) is installed on an output shaft of the rotating motor (31) in a key connection mode, the driven gear (33) is externally meshed at the rear side of the driving gear (32), a plurality of rotating shafts (34) are uniformly arranged above the driven gear (33) from left to right, the upper end of each rotating shaft (34) penetrates through the hollow supporting platform (2) and is fixedly connected with a concave base (41), the rotating shafts (34) are connected with the hollow supporting platform (2) through bearings, and the driven gear (33) is installed at the lower end of the rotating shaft (34) located in the middle in a key connection mode, the middle part of axis of rotation (34) is installed belt pulley (36) through the key-type connection mode, links to each other through endless belt (37) between belt pulley (36), and spacing through-hole (35) have evenly been seted up along its circumference in every axis of rotation (34) position that is close to the lower extreme, installs stop gear (38) on the inside rear side wall of hollow brace table (2).

3. The compressor housing cover machining positioning fixture as claimed in claim 2, wherein: the positions of the rotating shafts (34) correspond to the positions of the concave bases (41) one by one, and the number of the rotating shafts (34) is odd.

4. The compressor housing cover machining positioning fixture as claimed in claim 2, wherein: stop gear (38) include electric putter (381), connecting plate (382) and gag lever post (383), wherein there are electric putter (381) through the push rod pedestal mounting on the inside back side wall of hollow supporting bench (2), the end fixedly connected with connecting plate (382) that stretches out of electric putter (381), gag lever post (383) is evenly installed from a left side to the right side on the preceding lateral wall of connecting plate (382), the one end that connecting plate (382) were kept away from in gag lever post (383) slides and sets up in spacing through-hole (35).

5. The compressor housing cover machining positioning fixture as claimed in claim 1, wherein: the clamping and positioning mechanism (42) comprises a second electric push rod (421), a pushing circular plate (422), a connecting rod (423), a clamping rod (424), a first sliding groove (425), a first air bag (426), a connecting air pipe (427), a second air bag (428), a tightening rod (429), an extrusion spring (4210) and a second sliding groove (4211), wherein the second electric push rod (421) is installed at the lower end inside the concave base (41) through the push rod base, the pushing circular plate (422) is fixedly connected to the upper end of the second electric push rod (421), the connecting rod (423) is uniformly and rotatably connected to the outer side wall of the pushing circular plate (422) along the circumferential direction of the connecting rod through a pin shaft, one end, far away from the pushing circular plate (422), of the connecting rod (423) is connected with the position, close to the lower end, of the clamping rod (424), through the pin shaft, the first sliding groove (425) is uniformly formed in the upper end face of the concave base (41) along the circumferential direction, the clamping rod (424) is arranged in the first sliding groove (425) in a sliding mode, the lower end of the clamping rod (424) is in sliding fit with the inner lower end face of the concave base (41), a first air bag (426) is arranged above the push circular plate (422), the first air bag (426) is arranged between the inner wall of the top end of the concave base (41) and the top of the push circular plate (422), a second air bag (428) is arranged at the top of the hollow circular plate (43), the first air bag (426) is connected with the second air bag (428) through a connecting air pipe (427), the outer side of the second air bag (428) is uniformly provided with the tightening rods (429) along the circumferential direction of the second air bag, the upper end face of the hollow circular plate (43) is uniformly provided with the second sliding grooves (4211) along the circumferential direction of the upper end face of the hollow circular plate, the tightening rods (429) are arranged in the second sliding groove (4211) in a sliding mode, and the bottom of the tightening rods (429) is in sliding fit with the bottom of the hollow circular plate (43), an extrusion spring (4210) is arranged between the tension rod (429) and the inner side wall of the hollow disc (43).

6. The compressor housing cover machining positioning fixture as recited in claim 5, wherein: rubber layers are arranged on the inner side wall of the clamping rod (424) and the outer side wall of the tightening rod (429).

7. The compressor housing cover machining positioning fixture as claimed in claim 1, wherein: the auxiliary cleaning device (5) comprises side plates (51), a transverse plate (52), a high-pressure air pump (53), a telescopic air pipe (54), an air storage chamber (55), an air nozzle (56), an installation frame (57), a rotating rod (58), a lifting plate (59) and a reciprocating electric push rod (510), wherein the rear end of the upper end face of the hollow support platform (2) is fixedly provided with the side plates (51), the transverse plate (52) is fixedly arranged in the middle of the rear side wall of the side plates (51), the high-pressure air pump (53) is arranged on the upper end face of the transverse plate (52) through an air pump base, an air outlet of the high-pressure air pump (53) is connected with the telescopic air pipe (54), the upper end of the telescopic air pipe (54) is communicated with the air storage chamber (55), a plurality of groups of installation frames (57) are arranged on the upper end face of the side plates (51) from left to right, the rotating rod (58) is arranged on the opposite side wall of each group of installation frame (57) through a torsion spring, the air storage device is characterized in that an air nozzle (56) is fixedly mounted at the opposite end of the rotating rod (58), an air outlet of the air storage chamber (55) is communicated with the air nozzle (56) through a telescopic air pipe (54), a jacking plate (59) is arranged below the air nozzle (56), reciprocating electric push rods (510) are symmetrically arranged at the positions, close to the front end and the rear end, of the lower end face of the jacking plate (59), and the lower ends of the reciprocating electric push rods (510) are mounted on the hollow supporting table (2) through push rod bases.

8. The compressor housing cover machining positioning fixture as claimed in claim 7, wherein: the upper end surface of the jacking plate (59) is provided with a sponge layer.

Technical Field

The invention relates to the field of drilling fixtures, in particular to a positioning fixture for machining a shell cover of a compressor shell.

Background

The compressor is a machine for lifting low-pressure gas into high-pressure gas, and is the heart of a refrigeration system; the compressor mainly comprises an air cylinder, a mounting frame, a rotor, a stator, a shell and a shell cover, wherein the shell and the shell cover are parts for protecting internal parts of the compressor; when the shell cover is manufactured, a certain number of mounting holes are required to be formed in the shell cover for mounting conveniently, the shell cover needs to be clamped and fixed by using a clamp in a drilling process, and the precision of drilling is determined by the clamping and fixing effect, so that the production quality of the shell cover is directly influenced.

At present, the following problems are generally encountered in the use process of the existing clamp: a. the existing clamp is rigidly clamped when the shell cover is clamped, so that clamping marks are easily left on the surface of the shell cover, even the shell cover is deformed, the appearance quality of the shell cover is reduced, and the machined shell cover of the compressor shell cannot be installed easily; b. in the drilling process, a large amount of cooling liquid and chips are attached to the surface of the clamp, the existing clamp can only be cleaned through manual work when in use, the labor intensity of workers is increased, the cleaning efficiency is low, and the processing efficiency of the shell cover is influenced.

Disclosure of Invention

In order to solve the technical problem, the invention provides a positioning fixture for machining a shell cover of a compressor shell, which comprises support legs, a hollow support table, an adjusting device, a clamping and positioning device and an auxiliary cleaning device, wherein the hollow support table is fixedly installed at the upper ends of the support legs, the adjusting device is installed inside the hollow support table, the clamping and positioning device is fixedly connected to the upper ends of the adjusting device, the lower end face of the clamping and positioning device is in sliding fit with the hollow support table, and the auxiliary cleaning device is arranged at the rear end of the hollow support table.

The tight positioner of clamp include the spill base, press from both sides tight positioning mechanism, hollow disc, the pointer, annular graduated disk and dead lever, wherein adjusting device's upper end fixedly connected with spill base, be sliding fit between the lower terminal surface of spill base and the hollow brace table, the spill base is hollow structure, the middle part fixed mounting of spill base has hollow disc, the inside of spill base and hollow disc all is provided with presss from both sides tight positioning mechanism, the left and right sides wall middle part fixed mounting who is located middle spill base has the pointer, the below of pointer is provided with annular graduated disk, the lower terminal surface of annular graduated disk is close to the position symmetry at left and right sides both ends and installs the dead lever, the lower extreme of dead lever is fixed to be set up on the hollow brace table.

As a preferred technical scheme of the invention, the adjusting device comprises a rotating motor, a driving gear, a driven gear, a rotating shaft, a limiting through hole, a belt pulley, an annular belt and a limiting mechanism, wherein the rotating motor is arranged at the position, close to the front end, of the lower end inside the hollow supporting platform through a motor base, the driving gear is arranged on an output shaft of the rotating motor in a key connection mode, the driven gear is externally meshed at the rear side of the driving gear, a plurality of rotating shafts are uniformly arranged above the driven gear from left to right, the upper end of the rotating shaft penetrates through the hollow supporting platform and is fixedly connected with a concave base, the rotating shaft and the hollow supporting platform are connected through a bearing, the driven gear is arranged at the lower end of the rotating shaft in the middle in a key connection mode, the belt pulley is arranged in the middle of the rotating shaft in a key connection mode, and the belt pulleys are connected through the annular belt, limiting through holes are uniformly formed in the position, close to the lower end, of each rotating shaft along the circumferential direction of the rotating shaft, and a limiting mechanism is mounted on the inner rear side wall of the hollow supporting table.

As a preferable technical scheme of the invention, the positions of the rotating shafts correspond to the positions of the concave bases one by one, and the number of the rotating shafts is odd.

As a preferred technical scheme, the limiting mechanism comprises a first electric push rod, a connecting plate and a limiting rod, wherein the first electric push rod is mounted on the inner rear side wall of the hollow supporting table through a push rod base, the extending end of the first electric push rod is fixedly connected with the connecting plate, the limiting rods are uniformly mounted on the front side wall of the connecting plate from left to right, and one end, far away from the connecting plate, of the limiting rod is arranged in the limiting through hole in a sliding mode.

As a preferred technical scheme of the invention, the clamping and positioning mechanism comprises a second electric push rod, a pushing circular plate, a connecting rod, a clamping rod, a first sliding groove, a first air bag, a connecting air pipe, a second air bag, a tensioning rod, an extrusion spring and a second sliding groove, wherein the second electric push rod is arranged at the lower end inside the concave base through a push rod base, the pushing circular plate is fixedly connected to the upper end of the second electric push rod, the connecting rod is uniformly and rotatably connected to the outer side wall of the pushing circular plate along the circumferential direction of the pushing circular plate through a pin shaft, one end of the connecting rod far away from the pushing circular plate is connected with the position of the clamping rod close to the lower end through the pin shaft, the first sliding groove is uniformly arranged on the upper end surface of the concave base along the circumferential direction of the connecting rod, the clamping rod is slidably arranged in the first sliding groove, the first air bag is arranged above the pushing circular plate, no. one the gasbag is installed between the top inner wall of spill base and the top that promotes the plectane, No. two gasbags are installed at the top of hollow disc, link to each other through connecting the trachea between a gasbag and No. two gasbags, the outside of No. two gasbags evenly is provided with the straining rod along its circumference, the second spout has evenly been seted up along its circumference to the up end of hollow disc, the straining rod slides and sets up in the second spout and for sliding fit between the bottom of straining rod and the bottom of hollow disc, install extrusion spring between the inside wall of straining rod and hollow disc.

As a preferable technical scheme of the invention, rubber layers are arranged on the inner side wall of the clamping rod and the outer side wall of the stretching rod, and the rubber layers can increase the friction between the side walls of the clamping rod and the stretching rod and the shell cover of the compressor shell, thereby improving the clamping and fixing effect.

As a preferred technical scheme of the invention, the auxiliary cleaning device comprises side plates, a transverse plate, a high-pressure air pump, a telescopic air pipe, an air storage chamber, air nozzles, mounting frames, a rotating rod, a lifting plate and reciprocating electric push rods, wherein the rear end of the upper end surface of a hollow supporting table is fixedly provided with the side plates, the middle part of the rear side wall of the side plates is fixedly provided with the transverse plate, the upper end surface of the transverse plate is provided with the high-pressure air pump through an air pump base, the air outlet of the high-pressure air pump is connected with the telescopic air pipe, the upper end of the telescopic air pipe is communicated with the air storage chamber, the upper end surface of the side plates is provided with a plurality of groups of mounting frames from left to right, the rotating rod is rotatably arranged on the side wall opposite to each group of mounting frames through a torsion spring, the opposite end of the rotating rod is fixedly provided with the air nozzles, the air outlet of the air storage chamber is communicated with the air nozzles through the telescopic air pipes, the lifting plate is arranged below the air nozzles, the reciprocating electric push rods are symmetrically arranged at the positions, close to the front and back ends, on the lower end surface of the lifting plate, the lower end of the reciprocating electric push rod is arranged on the hollow supporting platform through the push rod base.

As a preferable technical scheme of the invention, the upper end surface of the jacking plate is provided with a sponge layer, and the sponge layer can play a certain buffering role in the process of up-and-down reciprocating motion of the jacking plate.

Compared with the prior art, the invention has the beneficial effects that: 1. the clamping and positioning device can simultaneously clamp the outer sides and support the inner sides of the shell covers of the compressor shell through the clamping and positioning mechanism, so that the stability of the shell covers of the compressor shell in the drilling process is ensured, the clamping mode is flexible clamping, the condition that clamping marks are generated is avoided, and meanwhile, the shell covers of the compressor shell are prevented from deforming, so that the qualified rate of the shell covers of the compressor shell is improved.

2. The auxiliary cleaning device can clean the cooling liquid and the scraps on the surface of the clamp in time through the air nozzle after the drilling process is finished, the cleaning angle of the air nozzle is adjustable, the cooling liquid and the remained scraps can be cleaned more thoroughly, the condition that the remained scraps affect the next drilling process is avoided, and the production quality of the shell cover of the shell of the compressor is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of a first three-dimensional structure of the present invention.

Fig. 2 is a second perspective view of the present invention.

Fig. 3 is a front cross-sectional view of the present invention.

Fig. 4 is a right side sectional view of the present invention.

FIG. 5 is a front view of the hollow support platform and adjustment device of the present invention.

Figure 6 is a right side view of the hollow support platform and adjustment means of the present invention.

FIG. 7 is a schematic diagram of the structure of the concave base, the clamping and positioning mechanism and the hollow disc in the invention.

Fig. 8 is a right side view of the auxiliary cleaning apparatus of the present invention.

Fig. 9 is a schematic perspective view of the compressor housing cover according to the present invention before being processed.

Fig. 10 is a schematic perspective view of the compressor housing cover according to the present invention after being processed.

In the figure: 1. a support leg; 2. a hollow support table; 3. an adjustment device; 31. rotating the motor; 32. a driving gear; 33. a driven gear; 34. a rotating shaft; 35. a limiting through hole; 36. a belt pulley; 37. an endless belt; 38. a limiting mechanism; 381. a first electric push rod; 382. a connecting plate; 383. a limiting rod; 4. clamping and positioning the device; 41. a concave base; 42. a clamping and positioning mechanism; 421. a second electric push rod; 422. pushing the circular plate; 423. a connecting rod; 424. a clamping lever; 425. a first chute; 426. a first airbag; 427. connecting an air pipe; 428. a second airbag; 429. a tightening rod; 4210. a compression spring; 4211. a second chute; 43. a hollow disc; 44. a pointer; 45. an annular index plate; 46. fixing the rod; 5. an auxiliary cleaning device; 51. a side plate; 52. a transverse plate; 53. a high pressure air pump; 54. a telescopic air pipe; 55. an air storage chamber; 56. an air nozzle; 57. a mounting frame; 58. a rotating rod; 59. a jacking plate; 510. a reciprocating electric push rod; 6. compressor housing covers.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

Referring to fig. 1 to 3, a compressor housing cap processing positioning fixture, includes stabilizer blade 1, hollow brace table 2, adjusting device 3, presss from both sides tight positioner 4 and supplementary cleaning device 5, the upper end fixed mounting of stabilizer blade 1 have hollow brace table 2, the internally mounted of hollow brace table 2 has adjusting device 3, adjusting device 3's upper end fixedly connected with presss from both sides tight positioner 4, the lower terminal surface that presss from both sides tight positioner 4 is sliding fit with hollow brace table 2, the rear end of hollow brace table 2 is provided with supplementary cleaning device 5.

Referring to fig. 1, 2, 3, 4 and 9, the clamping and positioning device 4 comprises a concave base 41, a clamping and positioning mechanism 42, a hollow disc 43, a pointer 44, an annular dividing disc 45 and a fixing rod 46, wherein adjusting device 3's upper end fixedly connected with spill base 41, be sliding fit between the lower terminal surface of spill base 41 and the hollow brace table 2, spill base 41 is hollow structure, the middle part fixed mounting of spill base 41 has hollow disc 43, the inside of spill base 41 and hollow disc 43 all is provided with presss from both sides tight positioning mechanism 42, the left and right sides wall middle part fixed mounting who is located middle spill base 41 has pointer 44, the below of pointer 44 is provided with annular graduated disk 45, the lower terminal surface of annular graduated disk 45 is close to the position symmetry at left and right sides both ends and installs dead lever 46, the lower extreme of dead lever 46 is fixed to be set up on hollow brace table 2. During specific work, place concave base 41 on compressor housing cap 6 that will need to carry out drilling processing through the manual work, press from both sides tight fixed processing to compressor housing cap 6 through pressing from both sides tight positioning mechanism 42, carry out drilling processing to compressor housing cap 6 through current drilling equipment, the drilling in-process, drive concave base 41 through adjusting device 3 and rotate, thereby it rotates to drive the compressor housing cap 6 after pressing from both sides tight fixed, reach the purpose to the even drilling of compressor housing cap 6 circumference, pointer 44 and annular graduated disk 45 set up the operating personnel of being convenient for and read the pivoted angle fast, thereby make the position of drilling more accurate.

Referring to fig. 7 and 9, the clamping and positioning mechanism 42 includes a second electric push rod 421, a push circular plate 422, a connecting rod 423, a clamping rod 424, a first sliding groove 425, a first air bag 426, a connecting air pipe 427, a second air bag 428, a tightening rod 429, an extrusion spring 4210 and a second sliding groove 4211, wherein the second electric push rod 421 is installed at the inner lower end of the concave base 41 through the push rod base, the push circular plate 422 is fixedly connected to the upper end of the second electric push rod 421, the connecting rod 423 is uniformly connected to the outer side wall of the push circular plate 422 through a pin shaft along the circumferential direction thereof, one end of the connecting rod 423 away from the push circular plate 422 is connected to the clamping rod 424 near the lower end through a pin shaft, the first sliding groove 425 is uniformly formed on the upper end surface of the concave base 41 along the circumferential direction thereof, the clamping rod 424 is slidably disposed in the first sliding groove 425 and the lower end of the clamping rod 424 is slidably engaged with the inner lower end surface of the concave base 41, a first air bag 426 is arranged above the push circular plate 422, the first air bag 426 is arranged between the inner wall of the top end of the concave base 41 and the top of the push circular plate 422, a second air bag 428 is arranged at the top of the hollow circular plate 43, the first air bag 426 and the second air bag 428 are connected through a connecting air pipe 427, a tightening rod 429 is uniformly arranged on the outer side of the second air bag 428 along the circumferential direction, a second sliding groove 4211 is uniformly arranged on the upper end surface of the hollow circular plate 43 along the circumferential direction, the tightening rod 429 is slidably arranged in the second sliding groove 4211, the bottom of the tightening rod 429 is in sliding fit with the bottom of the hollow circular plate 43, an extrusion spring 4210 is arranged between the tightening rod 429 and the inner side wall of the hollow circular plate 43, rubber layers are arranged on the inner side wall of the clamping rod 424 and the outer side wall of the tightening rod 429, and can increase the friction between the side wall of the clamping rod 424 and the shell cover of the compressor shell 6, thereby improving the clamping and fixing effect. During specific work, the compressor shell cover 6 needing drilling treatment is placed on the upper end face of the concave base 41 through manual work, the second electric push rod 421 is started, the second electric push rod 421 drives the push circular plate 422 to move upwards through the second electric push rod 421, so as to drive the connecting rod 423 to rotate, the connecting rod 423 drives the clamping rod 424 to move inwards, so as to clamp and fix the compressor shell cover 6 from the outer side of the compressor shell cover 6, the push circular plate 422 can extrude the first air bag 426 in the upward movement process (the first air bag 426 is in an filling state in the initial state), so that gas in the first air bag 426 is extruded into the second air bag 428 through the connecting air pipe 427 (the second air bag 428 is in a compression state in the initial state), so as to drive the second air bag 428 to expand, the shell cover 429 is driven to move outwards through the extrusion of the second air bag 428 to drive the shell cover 429, the shell cover 429 is braced and fixed from the inner side of the compressor shell cover 6 through the bracing rod 429, at this moment, the extrusion spring 4210 is in a compression state, after the drilling process is finished, the electric push rod 421 drives the push circular plate 422 to move downwards, so that the clamping rod 424 resets, the tightening rod 429 is extruded by the reaction force of the extrusion spring 4210, so that the tightening rod 429 is driven to reset inwards, so that air in the air bag 428 is extruded into the air bag 426, the fixing effect of the compressor shell cover 6 is relieved, and the processed compressor shell cover 6 is taken down manually, collected in a centralized manner and stacked.

Referring to fig. 5 to 6, the adjusting device 3 includes a rotating motor 31, a driving gear 32, a driven gear 33, a rotating shaft 34, a limiting through hole 35, a belt pulley 36, an endless belt 37 and a limiting mechanism 38, wherein the rotating motor 31 is installed at a position close to the front end of the inner lower end of the hollow supporting platform 2 through a motor base, the driving gear 32 is installed on an output shaft of the rotating motor 31 in a key connection manner, the driven gear 33 is externally engaged with the rear side of the driving gear 32, a plurality of rotating shafts 34 are uniformly arranged above the driven gear 33 from left to right, the positions of the rotating shafts 34 and the positions of the concave bases 41 correspond one to one, the number of the rotating shafts 34 is odd, the upper end of the rotating shaft 34 penetrates through the hollow supporting platform 2 and is fixedly connected with the concave bases 41, the rotating shaft 34 is connected with the hollow supporting platform 2 through a bearing, the driven gear 33 is installed at the lower end of the rotating shaft 34 located in the middle in a key connection manner, the middle part of the rotating shaft 34 is provided with a belt pulley 36 in a key connection mode, the belt pulleys 36 are connected through an annular belt 37, the position of each rotating shaft 34 close to the lower end is evenly provided with a limiting through hole 35 along the circumferential direction, and the rear side wall inside the hollow supporting platform 2 is provided with a limiting mechanism 38. During operation, start rotating motor 31, it rotates to drive driving gear 32 through rotating motor 31, it rotates to drive driven gear 33 through the intermeshing between driving gear 32 and the driven gear 33, thereby it rotates to drive axis of rotation 34 that is located the centre, the rotation through middle axis of rotation 34 drives belt pulley 36 of installing on middle axis of rotation 34 and rotates, thereby it rotates in step with all axis of rotation 34 to drive endless belt 37, it carries out the pivoted purpose to reach and drive concave base 41, and then reach the purpose to the even drilling of compressor housing cap 6 circumference, after axis of rotation 34 stall at every turn, carry out spacing fixed through stop gear 38 to axis of rotation 34, thereby improve concave base 41's stability, the accuracy of drilling position on compressor housing cap 6 has been guaranteed.

Referring to fig. 6, the limiting mechanism 38 includes a first electric push rod 381, a connecting plate 382 and a limiting rod 383, wherein the first electric push rod 381 is installed on the inner rear side wall of the hollow supporting platform 2 through the push rod base, the extending end of the first electric push rod 381 is fixedly connected with the connecting plate 382, the limiting rod 383 is evenly installed on the front side wall of the connecting plate 382 from left to right, and one end of the limiting rod 383, which is far away from the connecting plate 382, is slidably disposed in the limiting through hole 35. During operation, before rotating motor 31 starts, drive connecting plate 382 backward movement through an electric putter 381, thereby make gag lever post 383 break away from spacing through-hole 35, after axis of rotation 34 rotated certain angle and stopped rotating, drive connecting plate 382 forward movement through an electric putter 381, thereby make gag lever post 383 reinsert spacing through-hole 35, reach through gag lever post 383 and carry out spacing purpose to axis of rotation 34, thereby guaranteed the accuracy nature of drilling position on compressor housing cap 6.

Referring to fig. 1, 2, 4 and 8, the auxiliary cleaning device 5 includes a side plate 51, a horizontal plate 52, a high pressure air pump 53, a telescopic air pipe 54, an air storage chamber 55, an air nozzle 56, an installation frame 57, a rotating rod 58, a lifting plate 59 and a reciprocating electric push rod 510, wherein the side plate 51 is fixedly installed at the rear end of the upper end surface of the hollow support platform 2, the horizontal plate 52 is fixedly installed at the middle part of the rear side wall of the side plate 51, the high pressure air pump 53 is installed at the upper end surface of the horizontal plate 52 through an air pump base, the telescopic air pipe 54 is connected with an air outlet of the high pressure air pump 53, the air storage chamber 55 is communicated with the upper end of the telescopic air pipe 54, a plurality of sets of installation frames 57 are arranged at the upper end surface of the side plate 51 from left to right, the rotating rod 58 is rotatably installed on the side wall opposite to each set of installation frame 57 through a torsion spring, the air nozzle 56 is fixedly installed at the opposite end of the rotating rod 58, the air outlet of the air storage chamber 55 is communicated with the air nozzle 56 through the telescopic air pipe 54, the below of air nozzle 56 is provided with jacking board 59, jacking board 59's up end be provided with the sponge layer, at jacking board 59 up-and-down motion's in-process, certain cushioning effect can be played on the sponge layer, jacking board 59's lower terminal surface is close to the position symmetry at front and back both ends and is provided with reciprocal electric putter 510, the lower extreme of reciprocal electric putter 510 passes through the push rod pedestal mounting on hollow brace table 2. In this embodiment, the torsion spring is arranged so that the front end of the air nozzle 56 is always directed downward, and during operation, after the drilling is finished, a large amount of debris adheres to the surface of the clamping and positioning device 4, and the high-pressure air pump 53 is started, the high-pressure air pump 53 pressurizes and conveys the outside air to the air storage chamber 55, the air nozzle 56 sprays the air in the air storage chamber 55 to the clamping and positioning device 4, thereby blowing off the debris on the surface of the clamping and positioning device 4, and simultaneously activating the reciprocating electric push rod 510, the lifting plate 59 is driven by the reciprocating electric push rod 510 to do up-and-down reciprocating motion, the air nozzle 56 is driven to move upwards by the extrusion of the lifting plate 59 to the air nozzle 56, the air nozzle 56 is driven to move downwards by the counterforce of the torsion spring, thereby realizing the function of the up-and-down reciprocating motion of the air nozzle 56, enlarging the air injection area of the air nozzle 56 and improving the cleaning efficiency of the surface of the clamping and positioning device 4.

The method comprises the following steps in use: the compressor shell cover 6 needing drilling treatment is placed on the concave base 41 through manual work, the second electric push rod 421 is started, the second electric push rod 421 drives the push circular plate 422 to move upwards through the second electric push rod 421, so as to drive the connecting rod 423 to rotate, the connecting rod 423 drives the clamping rod 424 to move inwards, so as to clamp and fix the compressor shell cover 6 from the outer side of the compressor shell cover 6, the push circular plate 422 can extrude the first air bag 426 in the upward movement process (the first air bag 426 is in an filling state in the initial state), so that the gas in the first air bag 426 is extruded into the second air bag 428 through the connecting air pipe 427 (the second air bag 428 is in a compression state in the initial state), so as to drive the second air bag 428 to expand, the tightening rod 429 is driven to move outwards through the extrusion of the second air bag 428 to the tightening rod 429, and the tightening rod 429 is used for tightening and fixing treatment from the inner side of the compressor shell cover 6, at the moment, the extrusion spring 4210 is in a compressed state, and the shell cover 6 of the compressor shell is drilled by the conventional drilling equipment;

the second step is that: the first electric push rod 381 drives the connecting plate 382 to move backwards, so that the limiting rod 383 is separated from the limiting through hole 35, the rotating motor 31 is started, the driving gear 32 is driven to rotate by the rotating motor 31, the driven gear 33 is driven to rotate by the mutual meshing between the driving gear 32 and the driven gear 33, so that the rotating shaft 34 in the middle is driven to rotate, the belt pulley 36 installed on the rotating shaft 34 in the middle is driven to rotate by the rotation of the rotating shaft 34 in the middle, so that the annular belt 37 and all the rotating shafts 34 are driven to rotate synchronously, the purpose of driving the concave base 41 to rotate is achieved, the compressor shell cover 6 is driven to rotate, after the compressor shell cover 6 rotates for a certain angle and stops rotating, the first electric push rod 381 drives the connecting plate 382 to move forwards, so that the limiting rod 383 is inserted into the limiting through hole 35 again, the purpose of limiting the rotating shaft 34 is achieved through the limiting rod 383, so that the accuracy of the drilling position on the shell cover 6 of the compressor shell is guaranteed;

the third step: after the drilling process is finished, the second electric push rod 421 drives the push circular plate 422 to move downwards, so that the clamping rod 424 is reset, the tightening rod 429 is extruded by the reactive force of the extrusion spring 4210, the tightening rod 429 is driven to reset inwards, so that air in the second air bag 428 is extruded into the first air bag 426, the fixing effect of the compressor shell cover 6 is relieved, and the processed compressor shell cover 6 is manually taken down and subjected to centralized collection and stacking treatment;

the fourth step: above-mentioned third step is accomplished afterwards, there is a large amount of pieces attached to the surface of clamping position device 4, start high compression pump 53 this moment, carry external air pressure boost to gas receiver 55 through high compression pump 53, spray clamping position device 4 through air nozzle 56 with the air in the gas receiver 55 on, thereby will press from both sides the piece on clamping position device 4 surface and blow down, start reciprocal electric putter 510 simultaneously, drive jacking plate 59 through reciprocal electric putter 510 and carry out reciprocating motion from top to bottom, the extrusion to air nozzle 56 through jacking plate 59 drives air nozzle 56 upward movement, reaction force through the torsional spring drives air nozzle 56 downward movement, thereby realize air nozzle 56's reciprocating motion from top to bottom function, thereby air nozzle 56's jet-propelled area has been enlarged, the cleaning efficiency to clamping position device 4 surface has been improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.