CN109622752B

CN109622752B - Punching equipment for fan end cover

Info

Publication number: CN109622752B
Application number: CN201910010258.2A
Authority: CN
Inventors: 张灵
Original assignee: Zhejiang Li Fan Technology Co Ltd
Current assignee: Zhejiang Li Fan Technology Co Ltd
Priority date: 2019-01-05
Filing date: 2019-01-05
Publication date: 2020-02-18
Anticipated expiration: 2039-01-05
Also published as: CN109622752A

Abstract

The invention discloses a punching device for a fan end cover, and relates to a special machine tool, and the technical scheme is as follows: the end cover clamping device comprises a rack, wherein a motor, a clamp table for clamping an end cover body and a stamping head are arranged on the rack, the stamping head is arranged in a sliding manner, an output shaft is coaxially fixed at the output end of the motor, the output shaft drives the stamping head to reciprocate on the clamp table through a belt pulley and a crank link mechanism, a driving piece driven to rotate by the output shaft is arranged on the rack, a plurality of tooth parts are continuously arranged on the driving piece along the circumferential direction to form incomplete gears, and an outer gear ring used for being meshed with the tooth parts is fixedly arranged on; the reciprocating period of the punching head is the same as the rotating period of the driving piece. The device can automatically complete the punching processing of the fan end cover, has high processing efficiency and greatly reduces the labor amount of workers; the rotary position precision of the clamp table is improved by arranging the abutting block and the friction plate; the number of the tooth parts is adjustable, and personnel can adjust the distance of the processed end cover holes.

Description

Punching equipment for fan end cover

Technical Field

The invention relates to a special machine tool, in particular to punching equipment for a fan end cover.

Background

The blower generally includes a housing, an impeller disposed in the housing, and an end cap closing a single-side end face of the housing.

Referring to fig. 1, a conventional fan end cover includes an end cover body 10, a plurality of positioning holes 102 and a plurality of end cover holes 101 for bolts to pass through are formed in an end surface of the end cover body 10, and all the end cover holes 101 are distributed in a circumferential array about an axis of the end cover body 10. The end cap holes 101 are typically formed by stamping.

The above prior art solutions have the following drawbacks: in the prior art, when the end cover hole 101 is machined, the end cover body 10 needs to be manually repeatedly clamped on a hydraulic press machine to adjust the position and punch the end cover hole 101 one by one, so that the machining efficiency is low, and the manual labor amount is large.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the punching equipment for the fan end cover, which has the advantages of high machining efficiency and small labor amount.

The technical purpose of the invention is realized by the following technical scheme: a punching device for a fan end cover comprises a frame, wherein a motor, a clamp table for clamping an end cover body and a punching head are arranged on the frame in a sliding manner, an output shaft is coaxially fixed at the output end of the motor, the output shaft drives the punching head to reciprocate on the clamp table through a belt pulley and a crank connecting rod mechanism,

the fixture table is rotationally arranged on the rack, a driving piece driven by an output shaft to rotate is arranged on the rack, a plurality of tooth parts are continuously arranged on the driving piece along the circumferential direction to form incomplete gears, and an outer gear ring used for being meshed with the tooth parts is fixed on the fixture table along the circumferential direction;

the reciprocating motion period of the punching head is the same as the rotation period of the driving piece, and when the tooth part is meshed with the outer gear ring, the punching head is not contacted with the end cover body.

Through above-mentioned technical scheme, adorn the end cover body of treating processing on the anchor clamps platform in advance, then the starter motor, the motor drive punching press head is order about the driving piece rotation when reciprocating motion, and period between them is unanimous. When the tooth part on the driving piece rotates to a position meshed with the outer gear ring, the tooth part drives the clamp table to rotate for a certain angle through the outer gear ring; when the tooth part is disengaged from the outer gear ring, the clamp table loses power and stops rotating. In the time when the clamp table stops rotating, the stamping head is pressed down to the end cover body to complete the stamping processing of a single end cover hole; the equipment circularly acts as above, automatically completes the processing of all end cover holes, has high processing efficiency and greatly reduces the labor amount of workers.

Preferably, a driven shaft is coaxially fixed on the driving piece, an intermediate shaft is arranged on the rack in a rotating mode, the output shaft is in transmission with the intermediate shaft through a belt, and the intermediate shaft and the driven shaft are in transmission through bevel gear meshing.

Through above-mentioned technical scheme, the output shaft passes through the belt and establishes the transmission with the jackshaft, and the jackshaft passes through the bevel gear meshing with the driven shaft and establishes the transmission, and belt, bevel gear and jackshaft have changed the output position of output shaft, with power transmission to driving piece department.

Preferably, the tooth part is single tooth, the driving part is provided with a plurality of sliding strips along the circumferential direction, the tooth part is provided with a sliding groove in sliding connection with the sliding strips, and the driving part and the tooth part are disassembled and assembled through the sliding strips and the sliding groove.

Through above-mentioned technical scheme, when the interval in the end cover hole that needs to adjust processing out, personnel can follow the driving piece and extract partial tooth portion, or get new tooth portion and insert to the cutting to change the tooth portion of incomplete gear and account for than, change the driving piece and make the end cover hole interval of processing out change for every round drive fixture platform pivoted angle. When the teeth are inserted and pulled out, all the teeth are required to be continuously distributed.

Preferably, a gland is arranged on the driving piece and compresses and fixes the tooth part on the driving piece.

According to the technical scheme, after the gland is installed, the gland abuts against the end part of the tooth part through the plate surface, the tooth part is limited on the driving part by the gland, and the tooth part is prevented from being separated from the driving part spontaneously; when the tooth inserting part needs to be pulled out, the gland is removed.

Preferably, a brake disc is coaxially fixed on the clamp table, a friction plate used for abutting against the brake disc is arranged on the rack in a sliding mode, a cylindrical surface is arranged on the outer wall of the driving piece along the circumferential direction, an inner concave surface is arranged on the cylindrical surface corresponding to the axial direction of the tooth portion, a roller is fixed on the friction plate, and the roller is in rolling contact with the cylindrical surface and the inner concave surface.

Through the technical scheme, the roller can be in rolling contact with the concave surface through the wheel surface and can also be in rolling contact with the cylindrical surface; when the roller is abutted against the cylindrical surface, the friction plate and the brake disc are in an abutting state; when the roller is abutted against the inner concave surface, the friction plate and the brake disc are in a non-abutting state; when the tooth part on the driving piece rotates to the position meshed with the outer gear ring, the friction plate is not tightly propped against the brake disc, and the clamp table can rotate. When the tooth part is disengaged from the outer gear ring, the clamp table loses power and stops rotating; at the moment, the friction plate is tightly abutted to the brake disc, the clamp table is further prevented from spontaneously rotating, the rotating accuracy of the clamp table is improved, and the position accuracy of the punched end cover hole is improved.

Preferably, the driving part is provided with a butting block corresponding to each sliding strip in a sliding manner, the cylindrical surface is positioned on the butting block, and the concave surface is positioned on the tooth part; when the tooth part is arranged on the sliding strip, the tooth part pushes the abutting block to slide, so that the inner concave surface replaces the original position of the corresponding cylindrical surface.

Through above-mentioned technical scheme, when installing tooth portion on the draw runner, tooth portion promotes to support the piece and slides, makes the interior concave surface replace the primary importance that corresponds the face of cylinder, then all other interior concave surfaces that are of tooth portion are located the same circumference of interior concave surface and are the face of cylinder, and the interior concave surface is the indent state for the cylinder. After the tooth part is pulled out, the abutting block slides back to the original position, and the cylindrical surface replaces the position corresponding to the concave surface. In conclusion, after the toothed part is pulled out of the driving part, the friction plate can keep reliable action.

Preferably, the driving part is provided with a pressure cavity for introducing compressed air and an air pipe communicated with the pressure cavity, the pressure cavity is positioned on one side of the abutting block, which is far away from the gland, the abutting block seals the opening part of the pressure cavity, and the abutting block abuts through the side wall to form sealing; the pressure of the pressure cavity drives the abutting block to move towards the gland direction.

Through above-mentioned technical scheme, pull out the tooth portion after, support the piece and pop out voluntarily under the effect of pressure chamber pressure, need not artifical slip support the piece and reset, it is comparatively convenient.

Preferably, the abutting block can abut against the end part of the slide bar through sliding, and the slide bar limits the abutting block from being separated from the pressure cavity.

Through above-mentioned technical scheme, the draw runner can also play the restriction and support the effect that piece and pressure chamber separate when playing with tooth portion and carrying out sliding connection.

Preferably, it is provided with the clamping ring to rotate on the driving piece, the pivot of clamping ring is the axis of driving piece, the clamping ring is established sealedly with the pressure chamber, the trachea is connected in the clamping ring and is passed through clamping ring and the inside intercommunication of pressure chamber.

Through the technical scheme, the air pipe is used for connecting a compressed air source, so that a high-air-pressure state is established in the pressure cavity; when the driving piece rotates along with the driven shaft, the pressing ring keeps a static state along with the air pipe, so that the pressure in the pressure cavity is always kept.

In summary, compared with the prior art, the beneficial effects of the invention are as follows:

1. the equipment has high processing efficiency on the end cover of the fan, and greatly reduces the labor amount of workers;

2. the rotary position precision of the clamp table is improved by arranging the abutting block and the friction plate;

3. the number of the tooth parts is adjustable, and the distance between the processed end cover holes can be adjusted.

Drawings

FIG. 1 is a perspective view of a conventional blower end cap;

FIG. 2 is a perspective view of a punching device for a blower end cover according to an embodiment, mainly highlighting the external structure of the device;

FIG. 3 is a partial view of the embodiment, mainly highlighting the internal structure of the apparatus;

FIG. 4 is an exploded view of the driver of the embodiment, mainly highlighting the external structure of the driver;

fig. 5 is a longitudinal sectional view of the driving member of the embodiment, mainly projecting the internal structure of the driving member.

In the figures, 10, the end cap body; 101. an end cap aperture; 102. positioning holes; 1. a frame; 11. a motor; 2. a jig stage; 12. punching a head; 3. a drive member; 31. a tooth portion; 21. an outer ring gear; 111. an output shaft; 32. a driven shaft; 13. an intermediate shaft; 33. a slide bar; 311. a chute; 34. a gland; 35. a resisting block; 351. a cylindrical surface; 36. a pressure chamber; 37. pressing a ring; 371. an air tube; 312. an inner concave surface; 22. a brake disc; 4. a connecting rod; 41. a roller; 42. a friction plate; 43. a spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the punching device for the fan end cover disclosed by the invention comprises a frame 1, wherein a motor 11 and a clamp table 2 for clamping an end cover body 10 are arranged on the frame 1, the clamp table 2 is rotatably arranged on the frame 1, a punching head 12 is arranged on the frame 1 in a sliding manner along the vertical direction, the punching head 12 is positioned right above the clamp table 2, the axis of the punching head 12 deviates from the axis of the clamp table 2, and the punching head 12 is driven by the motor 11 to perform reciprocating sliding movement, so that an end cover hole 101 is punched on the end cover body 10. The machine frame 1 is also provided with a driving piece 3 driven by a motor 11 to rotate, a plurality of tooth parts 31 are continuously arranged on the driving piece 3 along the circumferential direction to form an incomplete gear, and an outer gear ring 21 meshed with the tooth parts 31 is fixed on the clamp table 2 along the circumferential direction; the driving piece 3 drives the clamp table 2 to do intermittent rotary motion through gear tooth meshing.

Referring to fig. 2 and 3, the motor 11 is fixed at the side wall of the frame 1, an output shaft 111 is coaxially fixed at an output end of the motor 11, and the output shaft 111 drives the punch 12 to reciprocate through a pulley and a crank link mechanism, which are prior art and are not described herein again. The driving part 3 is in a circular truncated cone shape as a whole, the axis of the driving part is in the vertical direction, and a driven shaft 32 is coaxially fixed at the bottom of the driving part 3; an intermediate shaft 13 is rotatably arranged on the frame 1 at a position close to the bottom end of the driven shaft 32, the axis of the intermediate shaft 13 is along the horizontal direction, the intermediate shaft 13 is meshed with the driven shaft 32 through a bevel gear to establish transmission, and the output shaft 111 establishes transmission with the intermediate shaft 13 through a belt pulley. When the motor 11 is operated, the motor 11 drives the output shaft 111 to rotate, and the output shaft 111 drives the punching head 12 to reciprocate and simultaneously drives the driving member 3 to rotate through the intermediate shaft 13. By customizing the size of each bevel gear, the diameter of each pulley, the reciprocating period of the punch 12 is made the same as the rotational period of the driving member 3, and the punch 12 is not in contact with the end cover body 10 when the tooth portion 31 is engaged with the outer ring gear 21.

Referring to fig. 4 and 5, the tooth portion 31 is a single tooth, a plurality of sliding strips 33 are continuously fixed on the driving member 3 along the circumferential direction, and all the sliding strips 33 are distributed in a circumferential array around the axis of the driving member 3; the cross-sectional shape of the slide bar 33 is trapezoidal, and the length direction of the slide bar 33 is in the vertical direction. The side wall of the tooth part 31 is provided with a sliding groove 311 which is in sliding fit with the sliding strip 33, the sliding groove 311 is a dovetail groove, and the driving part 3 and the tooth part 31 can be assembled and disassembled through the sliding strip 33 and the sliding groove 311. Gland 34 has been placed at the top of driving piece 3, and gland 34 passes through the bolt and is fixed with driving piece 3, and after the installation of gland 34 was accomplished, gland 34 offset through the face with the tip of tooth portion 31, and gland 34 prevents that tooth portion 31 from breaking away from driving piece 3 voluntarily with tooth portion 31 spacing on driving piece 3.

A resisting block 35 is arranged on the driving piece 3 corresponding to each sliding strip 33 in a sliding mode, the resisting block 35 is located on one side, away from the gland 34, of each sliding strip 33, and the sliding direction of the resisting block 35 is also in the vertical direction; the outer side wall of the resisting block 35 departing from the axis of the driving member 3 is a cylindrical surface 351, and the cylindrical surfaces 351 of all the resisting blocks 35 are in smooth transition and can be combined to form a cylinder.

The driving member 3 is provided with a pressure chamber 36 for introducing compressed air, the pressure chamber 36 is located on one side of the abutting blocks 35 away from the gland 34, the opening of the pressure chamber 36 faces upward, and all the abutting blocks 35 just seal the opening of the pressure chamber 36. The side walls of the abutting blocks 35 are ground to have higher surface smoothness, and the abutting blocks 35 abut through the side walls to form sealing; when the air pressure in the pressure chamber 36 is higher, the air pressure drives the pressure chamber 36 to expand, and the force drives the abutting blocks 35 to move upwards to abut against the ends of the slide bars 33, and the cylindrical surfaces 351 of all the abutting blocks 35 are located at the same height.

A pressure ring 37 is rotatably arranged on the driving member 3 at the pressure chamber 36, the axis of the pressure ring 37 coincides with the axis of the driving member 3, and the pressure ring 37 forms a part of the inner wall surface of the pressure chamber 36 and also forms a part of the outer wall surface of the driving member 3. The pivot of clamping ring 37 is the axis of driving piece 3, and clamping ring 37 establishes sealedly through the sealing washer with the driving piece 3 body of both sides, and the outer wall connection of clamping ring 37 has trachea 371, and trachea 371 passes the inside intercommunication of clamping ring 37 and pressure chamber 36. The air tube 371 is used for connecting a compressed air source, thereby establishing a high air pressure state in the pressure chamber 36; when the driving member 3 rotates along with the driven shaft 32, the pressing ring 37 keeps a static state along with the air pipe 371, thereby ensuring that the pressure chamber 36 always keeps pressure.

The tooth part 31 is provided with an inner concave surface 312, the inner concave surface 312 is positioned in the direction of the tooth part 31 away from the gland 34, and the distance from the inner concave surface 312 to the axis of the driver 3 is less than the distance from the cylindrical surface 351 to the axis of the driver 3. When the tooth part 31 is installed on the slide bar 33, the tooth part 31 pushes the abutting block 35 to slide, the abutting block 35 overcomes the air pressure of the pressure cavity 36 to slide downwards, the inner concave surfaces 312 replace the original positions of the corresponding cylindrical surfaces 351, the inner concave surfaces 312 in smooth transition are arranged below all the tooth parts 31, the cylindrical surfaces 351 are arranged in the same circumferential direction of the inner concave surfaces 312, and the inner concave surfaces 312 are in an inner concave state relative to the cylindrical surfaces 351.

Referring to fig. 3 and 4, a brake disc 22 is coaxially fixed at the bottom of the clamp stand 2, and the brake disc 22 and the cylindrical surface 351 are located at the same height; the frame 1 is slidably provided with a connecting rod 4, the axis of the connecting rod 4 being directed towards the driving member 3 and the brake disc 22. The connecting rod 4 is provided with a roller 41 rotating towards the end of the driver 3, and the roller 41 can be in rolling contact with the concave surface 312 through a wheel surface and can also be in rolling contact with the cylindrical surface 351. The end of the connecting rod 4 close to the brake disc 22 is fixed with a friction plate 42, and when the friction plate 42 is tightly abutted against the brake disc 22, a large friction force is generated to ensure that the clamp table 2 stops rotating. The connecting rod 4 is sleeved with a spring 43, two ends of the spring 43 are respectively fixed on the rack 1 and the connecting rod 4, and the roller 41 is driven by the elasticity of the spring 43 to be tightly abutted against the tooth part 31 or the abutting block 35. When the roller 41 abuts against the cylindrical surface 351, the friction plate 42 abuts against the brake disc 22; when the roller 41 abuts against the concave surface 312, the friction plate 42 is separated from the brake disc 22.

The working conditions of the punching equipment for the fan end cover are as follows: an end cover body 10 to be processed is mounted on the clamp table 2 in advance, then the motor 11 is started, the motor 11 drives the stamping head 12 to do reciprocating motion and simultaneously drives the driving piece 3 to rotate, and the periods of the two are consistent. When the tooth part 31 on the driving part 3 rotates to a position meshed with the outer gear ring 21, the tooth part 31 drives the clamp table 2 to rotate for a certain angle through the outer gear ring 21; at this time, the friction plate 42 is separated from the brake disc 22, and the chuck table 2 can be rotated. When the tooth part 31 is disengaged from the external gear ring 21, the clamp table 2 loses power and stops rotating; the friction plate 42 is tightly abutted against the brake disc 22 at this time, and further the clamp table 2 is prevented from generating spontaneous rotation, so that the accuracy of rotation of the clamp table 2 is improved, and the position accuracy of the punched end cover hole 101 is improved. In the time that the clamp table 2 stops rotating, the stamping head 12 is pressed down to the end cover body 10, and stamping processing of a single end cover hole 101 is completed; the equipment circularly acts as above, automatically completes the processing of all the end cover holes 101, has high processing efficiency and greatly reduces the labor amount of workers.

When the distance between the machined end cover holes 101 needs to be adjusted, a person can detach the gland 34, pull out a part of the tooth part 31 from the driving piece 3 or insert a new tooth part 31 on the cutting bar, so that the occupation ratio of the tooth part 31 of the incomplete gear is changed, the rotating angle of the driving clamp table 2 is changed every turn of the driving piece 3, and the distance between the machined end cover holes 101 is changed. When the tooth parts 31 are inserted and pulled out, all the tooth parts 31 are required to be continuously distributed; after the tooth part 31 is pulled out, the abutting block 35 is automatically ejected under the pressure of the pressure chamber 36, the cylindrical surface 351 replaces the position corresponding to the concave surface 312, and the friction plate 42 can still perform reliable action.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a drilling equipment of fan end cover, includes frame (1), be equipped with motor (11) in frame (1), be used for anchor clamps platform (2) of clamping end cover body (10), slide and be provided with punching press head (12), the coaxial output shaft (111) that is fixed with of motor (11), reciprocating motion, characterized by are done on anchor clamps platform (2) through belt pulley, crank link mechanism drive punching press head (12) in output shaft (111):

the fixture table (2) is rotatably arranged on the rack (1), a driving piece (3) driven by an output shaft (111) to rotate is arranged on the rack (1), a plurality of tooth parts (31) are continuously arranged on the driving piece (3) along the circumferential direction to form an incomplete gear, and an outer gear ring (21) meshed with the tooth parts (31) is fixed on the fixture table (2) along the circumferential direction;

the reciprocating motion period of the punching head (12) is the same as the rotation period of the driving part (3), and when the tooth part (31) is meshed with the outer gear ring (21), the punching head (12) is not contacted with the end cover body (10);

tooth portion (31) are the monodentate, driving piece (3) are provided with a plurality of draw runner (33) along circumference, be equipped with on tooth portion (31) with draw runner (33) sliding connection's spout (311), the dismouting is realized through draw runner (33), spout (311) in driving piece (3) and tooth portion (31).

2. The perforating device for the fan end cover as claimed in claim 1, wherein: the coaxial driven shaft (32) that is fixed with on driving piece (3), it is provided with jackshaft (13) to rotate on frame (1), output shaft (111) establish the transmission through belt and jackshaft (13), jackshaft (13) establish the transmission through bevel gear meshing with driven shaft (32).

3. The perforating device for the fan end cover as claimed in claim 1, wherein: a gland (34) is arranged on the driving piece (3), and the tooth part (31) is tightly pressed and fixed on the driving piece (3) by the gland (34).

4. The punching device for the fan end cover as claimed in claim 3, wherein: the brake disc (22) is coaxially fixed on the clamp table (2), a friction plate (42) which is used for abutting against the brake disc (22) is arranged on the rack (1) in a sliding mode, a cylindrical surface (351) is arranged on the outer wall of the driving piece (3) along the circumferential direction, an inner concave surface (312) is axially arranged on the cylindrical surface (351) corresponding to the tooth portion (31), a roller (41) is fixed on the friction plate (42), and the roller (41) is in rolling contact with the cylindrical surface (351) and the inner concave surface (312).

5. The punching equipment for the fan end cover as claimed in claim 4, wherein: the driving piece (3) is provided with a supporting block (35) corresponding to each sliding strip (33) in a sliding mode, the cylindrical surface (351) is located on the supporting block (35), and the inner concave surface (312) is located on the tooth portion (31); when the tooth part (31) is arranged on the sliding strip (33), the tooth part (31) pushes the abutting block (35) to slide, so that the concave surface (312) replaces the original position of the corresponding cylindrical surface (351).

6. The perforating device for the fan end cover as claimed in claim 5, wherein: the driving piece (3) is provided with a pressure cavity (36) for introducing compressed air and an air pipe (371) communicated with the pressure cavity (36), the pressure cavity (36) is positioned on one side of the abutting block (35) departing from the gland (34), the abutting block (35) seals the opening of the pressure cavity (36), and the abutting block (35) abuts through side walls to form sealing; the pressure of the pressure chamber (36) drives the abutting block (35) to move towards the gland (34).

7. The perforating device for the fan end cover as claimed in claim 6, wherein: the abutting block (35) can abut against the end part of the slide bar (33) through sliding, and the slide bar (33) limits the separating of the abutting block (35) and the pressure cavity (36).

8. The perforating device for the fan end cover as claimed in claim 6, wherein: rotate on driving piece (3) and be provided with clamping ring (37), the pivot of clamping ring (37) is the axis of driving piece (3), clamping ring (37) and pressure chamber (36) establish sealedly, trachea (371) are connected in clamping ring (37) and are through clamping ring (37) and the inside intercommunication of pressure chamber (36).