Impeller punching device of mixed flow fan for central air conditioner

Abstract

The impeller punching device of the mixed flow fan for the central air conditioner comprises a machine frame, a round supporting limiting block is fixed to the middle of the top face of a top plate of the machine frame, and a conical concave hole which extends downwards and is large in upper diameter and small in lower diameter is formed in the middle of the top face of the round supporting limiting block. The hub part of a to-be-machined impeller is inserted into the circular supporting limiting block in a sleeving manner, the middle part of a top plate of the to-be-machined impeller protrudes downwards to form a conical convex part, the to-be-machined impeller is inserted into the conical concave hole in a sleeving manner, the outer side wall of the to-be-machined impeller is tightly attached to the inner side wall of the conical concave hole, and the middle part of the bottom surface of a bottom plate of the conical convex part is pressed against the bottom surface of the conical concave hole; the hub machining device can machine a plurality of connecting through holes in a hub at a time, can automatically clamp and fix the hub and prevent the hub from moving, is good in machining effect and high in efficiency, and meets the requirement of mass production.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan processing equipment technical field more specifically, relate to a mixed flow fan's impeller punching device for central air conditioning. BACKGROUND

[0002] Mixed flow fan is between axial flow fan and centrifugal fan fan, mixed flow fan's impeller lets air do centrifugal motion and axial motion, the movement of the air in the shell mixes axial flow and centrifugal two movement forms, so called " mixed flow", because mixed flow fan's air volume is big, therefore, in some large central air conditioning, it needs to use mixed flow fan.

[0003] The impeller of the existing mixed flow fan is generally formed by stamping of aluminum material or other metal material, and some are made of non-metallic material such as plastic material. For the aluminum impeller, the hub is generally formed by stamping, and then the blades are fixed on the hub by bolts or welding. The middle part of the hub needs to be processed with multiple connecting through holes. The existing method is to manually place the hub at the punch press for punching one by one, which has poor effect and low efficiency, especially for mass production. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of mixed flow fan's impeller punching device for central air conditioning, it can process multiple connecting through holes on hub portion at a time, it can be automatically clamped and fixed Hub, prevent moving, its processing effect is good, efficiency is high, is suitable for mass production needs.

[0005] The utility model discloses a kind of mixed flow fan's impeller punching device for central air conditioning, it can process multiple connecting through holes on hub portion at a time, it can be automatically clamped and fixed Hub, prevent moving, its processing effect is good, efficiency is high, is suitable for mass production needs.

[0006] A kind of mixed flow fan's impeller punching device for central air conditioning, including rack, the top surface middle part of the top plate of the rack is fixed with circular support limiting block, the top surface middle part of circular support limiting block is formed with the taper recess hole of the upper portion diameter big lower portion diameter small that downwardly extends, the hub portion of the impeller to be processed is inserted on circular support limiting block, the middle part of its top plate is formed with the taper protruding portion that is convex downward, it is inserted in taper recess hole, its outer side wall is close to the inner side wall of taper recess hole, the bottom surface middle part of the bottom plate of taper protruding portion is pressed on the bottom surface of taper recess hole;

[0007] The bottom surface of the taper recess hole directly below the middle part of the bottom plate of the taper protruding portion to be processed is formed with lower recess hole;

[0008] The top surface of the top plate of the rack is fixed with vertical support columns at four corners, an upper fixed plate is fixed on the top surface of the four vertical support columns, a punch oil cylinder is fixed in the middle of the top surface of the upper fixed plate, the bottom end of the push rod of the punch oil cylinder extends out of the bottom surface of the upper fixed plate and is fixed with a lifting plate, a punch connector is punched in the middle of the bottom surface of the lifting plate, a plurality of punch heads are fixed on the bottom surface of the punch connector, the punch heads face the bottom surface of the conical recess and the lower recess below.

[0009] The bottom surface of the lower recess communicates with the top of the corresponding lower through hole formed on the bottom surface of the circular support limiting block, and the inner diameter of the lower through hole is larger than that of the lower recess.

[0010] The bottom end of the lower through hole communicates with and aligns with the corresponding intermediate through hole formed in the middle of the top plate of the rack.

[0011] The middle part of the bottom surface of the top plate of the rack is fixed with a guide discharge chute body, and the bottom end of all the intermediate through holes communicates with the guide discharge chute body.

[0012] The middle part of the left and right side walls of the circular support limiting block is formed with an inner groove, an inner support wall plate is fixed on the inner side wall of the inner groove, a clamping block is inserted into the inner groove, the top surface and the bottom surface of the clamping block are tightly attached to the corresponding wall surfaces of the corresponding inner support wall plate, an elastic anti-skid layer is fixed on the outer side wall of the clamping block, the outer part of the clamping block extends out of the inner groove, and the outer side wall of the elastic anti-skid layer is pressed against the corresponding inner side wall of the hub of the impeller.

[0013] The middle part of the bottom surface of the top plate of the rack is fixed with a lower support frame, the middle part of the bottom surface of the bottom plate of the lower support frame is fixed with a lifting oil cylinder, the top end of the push rod of the lifting oil cylinder extends out of the top surface of the bottom plate of the lower support frame and is fixed with a lower lifting plate, the lower lifting plate is below the guide discharge chute body fixed in the middle of the bottom surface of the top plate of the rack, the top surface of the lower lifting plate is fixed with lifting rods on the left and right parts, the lifting rods are inserted into the corresponding guide through holes formed on the top plate of the rack, the top part of the lifting rods extends out of the top end of the corresponding guide through hole, the lower through hole formed in the bottom surface of the corresponding inner groove, and the middle through hole of the inner support wall plate fixed on the bottom surface of the inner groove, and is in the inner groove;

[0014] The inner side wall of the clamping block is a downward and outward inclined wall surface, the outer inclined wall surface of the lifting block is tightly attached to and cooperates with the inner side wall of the clamping block, the top end of the lifting rod is fixed on the bottom surface of the lifting block, the middle part of the inner side wall of the lifting block is fixed with a guide sliding block, the inner support wall plate at the inner side wall of the inner groove is fixed with a vertical guide rail, and the vertical guide rail is inserted into the sliding groove of the corresponding guide sliding block.

[0015] One end of a plurality of return springs is fixed on the inner support wall plate on the inner wall surface of the inner groove at the front and rear parts of the vertical guide rail, and the other end of the return spring is fixed on the inner side wall of the corresponding clamping block.

[0016] The utility model discloses a protruding effect is:

[0017] Compared with the prior art, it can process multiple connecting through holes on the hub portion at one time, can automatically clamp and fix the hub portion, prevent movement, has good processing effect and high efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a partial structure schematic view of the utility model;

[0019] Figure 2 It is Figure 1 partial enlarged view of the;

[0020] Figure 3 It is the partial cross section of the guide discharge groove body;

[0021] Figure 4 It is the partial cross section of the circular support limiting block. DETAILED DESCRIPTION

[0022] Embodiment, see as Figures 1 to 4 shown, a kind of mixed flow fan impeller punching device of central air conditioning, including rack 10, the top surface middle part of the top plate of the rack 10 is fixed with circular support limiting block 20, the top surface middle part of circular support limiting block 20 is shaped with the taper hole 21 of the upper part diameter big lower part diameter small extending downwards, the hub portion of the impeller 100 to be processed is inserted on circular support limiting block 20, the middle part of its top plate is formed with taper protruding portion downwards protruding, it is inserted in taper hole 21, its outer side wall is close to the inner side wall of taper hole 21, the bottom surface middle part of the bottom plate of taper protruding portion is pressed on the bottom surface of taper hole 21;

[0023] The bottom surface of taper hole 21 directly below the middle part of the bottom plate of taper protruding portion to be processed is shaped with lower hole 22;

[0024] The top surface of the top plate of the rack 10 is fixed with vertical support column 11 at four corners, upper fixed plate 12 is fixed on the top surface of four vertical support columns 11, punch oil cylinder 13 is fixed in the top surface middle part of upper fixed plate 12, the bottom end of the push rod of punch oil cylinder 13 extends out of the bottom surface of upper fixed plate 12 and is fixed with lifting plate 14, punch connecting head 15 is connected in the bottom surface middle part of lifting plate 14, the bottom surface of punch connecting head 15 is fixed with multiple punch heads 16, punch head 16 is opposite the bottom surface of taper hole 21 and opposite lower hole 22 below.

[0025] Further, multiple vertical guide rods 17 are fixed on the top surface of lifting plate 14, and the vertical guide rods 17 are inserted into corresponding vertical guide holes in the upper fixed plate 12.

[0026] Further, the bottom surface of the lower concave hole 22 communicates with the top of the corresponding lower through hole 23 formed in the bottom surface of the circular support limiting block 20, and the inner diameter of the lower through hole 23 is larger than that of the lower concave hole 22. The bottom end of the lower through hole 23 communicates with and is aligned with the corresponding intermediate through hole 1 formed in the middle of the top plate of the rack 10.

[0027] Further, the bottom surface of the middle of the top plate of the rack 10 is fixed with a guide discharge chute body 30, and the bottom end of all the intermediate through holes 1 communicates with the guide discharge chute body 30.

[0028] The bottom plate of the guide discharge chute body 30 extends obliquely downward from the inner end to the outer end.

[0029] This allows the waste falling from the intermediate through hole 1 to fall along the guide discharge chute body 30 and drop out from the outer end, and a receiving bucket can be placed below the outer end of the guide discharge chute body 30 to receive the waste.

[0030] Further, the middle of the left and right side walls of the circular support limiting block 20 is formed with an inner recess 24, the inner side wall of the inner recess 24 is fixed with an inner support wall plate 25, a clamping block 26 is inserted into the inner recess 24, the top surface and the bottom surface of the clamping block 26 are tightly attached to the corresponding wall surfaces of the corresponding inner support wall plate 25, the outer side wall of the clamping block 26 is fixed with an elastic anti-skid layer 261, the outer part of the clamping block 26 extends out of the inner recess 24, and the outer side wall of the elastic anti-skid layer 261 is pressed against the corresponding inner side wall of the hub part of the impeller 100.

[0031] Further, the middle of the bottom surface of the top plate of the rack 10 is fixed with a lower support frame 40, the middle of the bottom surface of the bottom plate of the lower support frame 40 is fixed with a lifting oil cylinder 41, the top end of the push rod of the lifting oil cylinder 41 extends out of the top surface of the bottom plate of the lower support frame 40 and is fixed with a lower lifting plate 42, the lower lifting plate 42 is below the guide discharge chute body 30 fixed in the middle of the bottom surface of the top plate of the rack 10, the left and right parts of the top surface of the lower lifting plate 42 are fixed with lifting rods 43, the lifting rods 43 are inserted into the corresponding guide through holes formed in the top plate of the rack 10, the top part of the lifting rods 43 extends out of the top end of the corresponding guide through hole, the middle through hole of the inner support wall plate 25 formed in the bottom surface of the corresponding inner recess 24 and the bottom surface of the inner recess 24, and is in the inner recess 24;

[0032] The inner side wall of the clamping block 26 is an oblique wall surface extending obliquely downward and outward, the outer side of the oblique wall surface of the lifting block 27 is tightly attached to and cooperates with the inner side wall of the clamping block 26, the top end of the lifting rod 43 is fixed on the bottom surface of the lifting block 27, the middle of the inner side wall of the lifting block 27 is fixed with a guide sliding block 271, the inner support wall plate 25 at the inner side wall of the inner recess 24 is fixed with a vertical guide rail 2, and the vertical guide rail 2 is inserted into the sliding groove of the corresponding guide sliding block 271.

[0033] Further, the inner support wall plate 25 fixed on the bottom surface of the inner groove 24 has a first guide sleeve 3 fixed on the inner side wall of the middle through hole of the inner support wall plate 25, and the lifting rod 43 is inserted into the first guide sleeve 3, with the outer side wall of the lifting rod 43 tightly abutting on the inner side wall of the corresponding first guide sleeve 3.

[0034] The outer side wall of the lifting block 27 is fixed with a self-lubricating wear-resistant plate 272 extending obliquely, with the outer wall surface of the self-lubricating wear-resistant plate 272 tightly abutting on the inner side wall of the clamping block 26.

[0035] Further, the bottom surface of the lower lifting plate 42 is fixed with a plurality of lower guide rods, and the lower guide rods are inserted into the guide sleeve body fixed on the bottom plate of the lower support frame 40.

[0036] The inner side wall of the corresponding guide through hole formed on the top plate of the rack 10 is fixed with a second guide sleeve, and the lifting rod 43 is inserted into the corresponding second guide sleeve, with the outer side wall of the lifting rod 43 tightly abutting on the inner side wall of the corresponding second guide sleeve.

[0037] Further, one end of the plurality of return springs 4 is fixed on the inner support wall plate 25 fixed on the inner wall surface of the inner groove 24 at the front and rear portions of the vertical guide rail 2, and the other end of the return springs 4 is fixed on the inner side wall of the corresponding clamping block 26.

[0038] The embodiment is suitable for a corresponding size of equipment of one type, which is suitable for the needs of mass production.

[0039] All the oil cylinders of the embodiment are connected with the hydraulic system through the connecting pipes, and all the electrical components are electrically connected with the control host through the electrical connection lines, and the operation is controlled through the control host. The structure is conventional, which will not be described in detail here.

[0040] In use, the hub portion of the impeller 100 to be processed is inserted into the circular support limiting block 20, the middle portion of the top plate of the circular support limiting block 20 protrudes downward to form a conical protruding portion, the conical protruding portion is inserted into the conical recess 21, the outer side wall of the conical protruding portion tightly abuts on the inner side wall of the conical recess 21, and the bottom surface of the bottom plate of the conical protruding portion is pressed against the bottom surface of the conical recess 21. Meanwhile, the clamping block 26 is moved outward by the push rod of the lifting oil cylinder 41, so that the outer side wall of the elastic anti-slip layer 261 is pressed against the corresponding inner side wall of the hub portion of the impeller 100 to clamp and fix the hub portion.

[0041] Then, the punch connecting head 15 is lowered by the push rod of the punching oil cylinder 13, the plurality of punching heads 16 (four punching heads 16 in the embodiment) fixed on the bottom surface of the punch connecting head 15 are lowered, and the middle portion of the top plate of the hub portion is punched. The waste will enter the lower through hole 23 from the lower recess 22, and then enter the guide discharge chute 30 through the middle through hole 1 and be removed, which is very convenient.

[0042] Then, all components are reset, the clamping block 26 is retracted by the elastic restoring force of the restoring spring 4 when the lifting block 27 is lowered, at this time, the finished impeller 100 can be taken off, a new impeller 100 is installed, and continuous machining is carried out, the machining effect is good, all connecting through holes of the impeller 100 can be machined at one time, and the efficiency is high.

[0043] Finally, it should be pointed out that the above embodiments are only more representative examples of the present application. Obviously, the present application is not limited to the above embodiments, and many modifications can be made. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments shall be considered to fall within the protection scope of the present application.

Claims

1. A central air conditioning mixed flow fan impeller punching device, comprising a rack (10), characterized in that: The middle part of the top surface of the top plate of the frame (10) is fixed with a circular support limiting block (20), the middle part of the top surface of the circular support limiting block (20) is formed with a downward extending upper tapered hole (21) with a large upper diameter and a small lower diameter, the hub of the impeller (100) to be machined is inserted on the circular support limiting block (20), the middle part of the top plate of the hub is downward protruded to form a tapered protruding part, the tapered protruding part is inserted in the tapered hole (21), the outer side wall of the tapered protruding part is tightly attached to the inner side wall of the tapered hole (21), the bottom surface of the bottom plate of the tapered protruding part is pressed against the bottom surface of the tapered hole (21); The bottom surface of the tapered hole (21) directly below the middle part of the bottom plate of the tapered protruding part to be machined is formed with a lower hole (22); The top surface of the top plate of the frame (10) is fixed with four vertical support columns (11) at the four corners, an upper fixed plate (12) is fixed on the top surface of the four vertical support columns (11), a stamping oil cylinder (13) is fixed on the middle part of the top surface of the upper fixed plate (12), the bottom end of the push rod of the stamping oil cylinder (13) extends out of the bottom surface of the upper fixed plate (12) and is fixed with a lifting plate (14), a stamping connecting head (15) is connected on the middle part of the bottom surface of the lifting plate (14), a plurality of punching heads (16) are fixed on the bottom surface of the stamping connecting head (15), the punching heads (16) are opposite to the bottom surface of the tapered hole (21) and to the lower hole (22) below.

2. A punch device for impeller of mixed flow fan for central air conditioning according to claim 1, characterized in that: A plurality of vertical guide rods (17) are fixed on the top surface of the lifting plate (14) and are inserted in the corresponding vertical guide holes of the upper fixed plate (12).

3. A punch device for impeller of mixed flow fan for central air conditioning according to claim 1, characterized in that: The bottom surface of the lower hole (22) is communicated with the top part of the corresponding lower through hole (23) formed on the bottom surface of the circular support limiting block (20), the inner diameter of the lower through hole (23) is larger than that of the lower hole (22).

4. A punch device for a mixed flow fan of a central air conditioning system according to claim 3, characterized in that: The bottom end of the lower through hole (23) is communicated with and aligned with the corresponding middle through hole (1) formed on the middle part of the top plate of the frame (10).

5. A punch device for a mixed flow fan of a central air conditioning system according to claim 4, characterized in that: The middle part of the bottom surface of the top plate of the frame (10) is fixed with a guide discharge chute body (30), the bottom end of all the middle through holes (1) is communicated with the guide discharge chute body (30); The bottom plate of the guide discharge chute body (30) extends obliquely downward from the inner end to the outer end.

6. A punch device for impeller of mixed flow fan for central air conditioning according to claim 1, characterized in that: The middle part of the left and right side walls of the circular support limiting block (20) is formed with an inner groove (24), an inner support wall plate (25) is fixed on the inner side wall of the inner groove (24), a clamping block (26) is inserted in the inner groove (24), the top surface and the bottom surface of the clamping block (26) are tightly attached to the corresponding wall surfaces of the corresponding inner support wall plate (25), an elastic anti-skid layer (261) is fixed on the outer side wall of the clamping block (26), the outer side wall of the elastic anti-skid layer (261) is pressed against the corresponding inner side wall of the hub of the impeller (100).

7. A punch device for a mixed flow fan of a central air conditioning system according to claim 6, characterized in that: The bottom surface middle part of the top plate of the rack (10) is fixed with a lower support frame (40), the bottom plate of the lower support frame (40) is fixed with a lifting oil cylinder (41), the top end of the push rod of the lifting oil cylinder (41) extends out of the top surface of the bottom plate of the lower support frame (40) and is fixed with a lower lifting plate (42), the lower lifting plate (42) is below the guide discharge chute body (30) fixed in the middle part of the bottom surface of the top plate of the rack (10), the top surface of the left part and the right part of the lower lifting plate (42) are fixed with lifting rods (43), the lifting rods (43) are inserted into the corresponding guide through holes formed on the top plate of the rack (10), the top part of the lifting rods (43) extends out of the top end of the lower through hole corresponding to the bottom surface of the inner recess (24) and the middle part through hole of the inner support wall plate (25) fixed on the bottom surface of the inner recess (24) and is in the inner recess (24); The inner side wall of the clamping block (26) is a downward and outward inclined wall surface, the outer side inclined wall surface of the lifting block (27) is close to the inner side wall of the clamping block (26) and cooperates with it, the top end of the lifting rod (43) is fixed on the bottom surface of the lifting block (27), the middle part of the inner side wall of the lifting block (27) is fixed with a guide sliding block (271), the inner support wall plate (25) at the inner side wall of the inner recess (24) is fixed with a vertical guide rail (2), the vertical guide rail (2) is inserted into the sliding groove of the corresponding guide sliding block (271).

8. A punch device for a mixed flow fan of a central air conditioning system according to claim 7, characterized in that: The inner side wall of the middle part through hole of the inner support wall plate (25) fixed on the bottom surface of the inner recess (24) is fixed with a first guide sleeve (3), the lifting rod (43) is inserted into the first guide sleeve (3), and the outer side wall thereof is close to the inner side wall of the corresponding first guide sleeve (3); The outer side wall of the lifting block (27) is fixed with an inclined self-lubricating wear-resistant plate (272), and the outer wall surface thereof is close to the inner side wall of the clamping block (26).

9. A punch device for a mixed flow fan of a central air conditioning system according to claim 7, characterized in that: The bottom surface of the lower lifting plate (42) is fixed with a plurality of lower guide rods, the lower guide rods are inserted into the guide sleeve body fixed on the bottom plate of the lower support frame (40); The inner side wall of the corresponding guide through hole formed on the top plate of the rack (10) is fixed with a second guide sleeve, the lifting rod (43) is inserted into the corresponding second guide sleeve, and the outer side wall thereof is close to the inner side wall of the corresponding second guide sleeve.

10. A punch device for a mixed flow fan of a central air conditioning system according to claim 7, characterized in that: The inner support wall plate (25) fixed on the inner wall surface of the inner recess (24) at the front part and the rear part of the vertical guide rail (2) is fixed with one end of a plurality of return springs (4), and the other end of the return springs (4) is fixed on the inner side wall of the corresponding clamping block (26).

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