Automatic batch sharpener for metal housing of fan

Abstract

The application discloses an automatic batch punch equipment for a metal shell of a fan, which comprises a machine table, a feeding device, a transfer device, a polishing device, a pushing device I and a punching device are installed on the machine table; the feeding device is used for conveying the fan shell, a pushing device II is arranged at the end of the feeding device, the pushing device II is connected with a turnover device, and the two are synchronously moved; the turnover device is used for driving the fan shell to rotate axially and removing burrs at both ends of the fan shell through the polishing device; the transfer device is used for obtaining the fan shell and shuttling between the pushing device II, the turnover device and the pushing device I; the pushing device is used for pushing the fan shell into the punching device, the punching device is provided with a batch punch, a plurality of punch claws are arranged in an annular array at the end of the batch punch, the punch claws can penetrate into the end of the fan shell, and the above-mentioned devices are matched with each other to realize polishing and batch punch removal and other operations, automatic processing is realized, products do not need to be detected one by one by a person, production efficiency is effectively improved, each part meets the use standard, and assembly problems are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of metal product finishing device, and particularly relates to an automatic fan metal shell batch burr punching equipment. BACKGROUND

[0002] At present, after product machining is completed, batch burrs will appear on the surface, edge, side hole and the like of the product due to the process, and the batch burrs will bring many adverse effects in actual production and use, such as poor appearance, poor assembly with other components, and injury to the user, and therefore, the batch burrs need to be cut off after product machining is completed.

[0003] At present, the fan shell adopted in part of products is a metal product, for example, the fan shell used in a hair dryer is an aluminum alloy, and the air duct shell in the public technical document "CN217307358U, a same-side coaxial surface stator structure and motor beneficial to machining" is formed through CNC machining, and batch burrs will be generated in the process of machining, and since the places where the batch burrs are formed are not many and there is no good processing method, the batch burrs are generally not processed, but may cause assembly errors and lead to the emergence of defective products. SUMMARY

[0004] The application aims to provide an automatic fan metal shell batch burr punching equipment to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme.

[0006] An automatic fan metal shell batch burr punching equipment comprises a machine table, and an upper feeding device, a transfer device, a polishing device, a pushing device one and a punching device are installed on the machine table.

[0007] The upper feeding device is used for conveying the fan shell, and a pushing device two is arranged at the end of the upper feeding device, the pushing device two is connected with a turnover device, and the two are synchronously moved.

[0008] The turnover device is used for driving the fan shell to rotate axially, and the polishing device is used for removing burrs at both ends of the fan shell.

[0009] The transfer device is used for obtaining the fan shell and shuttling between the pushing device two, the turnover device and the pushing device one.

[0010] The pushing device is used for pushing the fan shell into the punching device, the punching device is provided with a batch burr punch, a plurality of punch claws are arranged in an annular array at the end of the batch burr punch, and the punch claws can penetrate into the end of the fan shell.

[0011] Further technical solutions, the push device two includes a base, the base is slidably connected with a moving plate, the moving plate is surrounded to form a placement site, the moving plate is connected with a push cylinder, the turnover device is installed on the moving plate;

[0012] The turnover device includes a fixed seat, a cylinder two is installed on both sides of the fixed seat, a moving seat is connected to the output end of the cylinder two, the moving seat is slidably connected with the fixed seat, a rotating assembly is arranged on the moving seat, and a clamping jaw is connected to the output end of the rotating assembly.

[0013] Further technical solutions, the rotating assembly includes a fixed cylinder, one end of the fixed cylinder is connected with the moving seat, the other end is connected with a cylinder three, an activity cylinder is arranged in the fixed cylinder, one end of the activity cylinder is rotatably connected with the moving seat, an inclined strip hole one is arranged on the side wall of the activity cylinder, a straight limit strip hole two is arranged outside the fixed cylinder, the output end of the cylinder three extends into the activity cylinder, a lever is arranged at the output end, and the lever passes through the strip hole one and the strip hole two.

[0014] Further technical solutions, the polishing device includes a moving assembly, the moving assembly is installed with a lifting assembly, a drive motor is installed at the moving end of the lifting assembly, a fixed head is installed at the output end of the drive motor, a plurality of polishing rods are annularly arranged on the lower end surface of the fixed head along the circumferential direction, and the polishing rods are in contact with the inner edge of the fan shell.

[0015] Further technical solutions, the punching head includes a fixed part, a plurality of mounting holes one and mounting holes two are annularly arranged in the fixed part, and are used for mounting the punch jaw, the mounting holes one and the mounting holes two are arranged alternately, and the shapes and sizes of the mounting holes one and the mounting holes two are different.

[0016] Further technical solutions, the push device one includes a cylinder four, the output end of the cylinder four is connected with a jig, the jig is slidably connected with the rack, and the jig is provided with an acupoint for placing the fan shell, so that the fan shell is in a vertical state.

[0017] Further technical solutions, a plurality of positioning holes are arranged on the jig, positioning columns matched with the positioning holes are arranged on the punching device, and the positioning columns move with the punching device.

[0018] Further technical solutions, the punching device includes a fixed support one, a power assembly is installed on the fixed support one, a connecting seat is installed at the output end of the power assembly, the positioning columns and the punching head are installed at the bottom of the connecting seat, a fixed support two is arranged in the fixed support one, a guide hole through which the positioning columns pass is arranged on the fixed support two, and a through hole through which the punch jaw passes is arranged.

[0019] Further technical solutions, the acupoint is a through groove, and a step is arranged on the inner side of the through groove and used for fixing the fan shell.

[0020] The beneficial effects of the present application are as follows:

[0021] The present application realizes polishing and burr removing operations through mutual cooperation of the above-mentioned devices, realizes automatic processing, does not need people to detect products one by one, effectively improves production efficiency, makes every part meet the use standard, and reduces assembly problems.

[0022] Other features and advantages of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The fan shell structure of the present application.

[0024] Figure 2 The overall structure of the present application.

[0025] Figure 3 The partial structure of the present application.

[0026] Figure 4 The B part of the present application. Figure 3

[0027] Figure 5 The structure of the turnover device of the present application.

[0028] Figure 6 The structure of the punching device and the pushing device of the present application.

[0029] Figure 7 The A part of the present application. Figure 6

[0030] Figure 8 The structure of the pushing device of the present application.

[0031] Figure 9 The structure of the burr punching head of the present application.

[0032] ​​Mark: 1- machine, 2- feeding device, 3- transfer device, 4- polishing device, 41- moving assembly, 42- lifting assembly, 43- driving motor, 44- fixed head, 45- polishing rod, 5- pushing device one, 51- cylinder four, 52- jig, 53- acupoint, 54- limit bump, 55- step, 56- positioning hole, 61- stamping device, 611- fixed support one, 612- power assembly, 613- connecting seat, 614- fixed support two, 615- positioning column, 616- through hole, 62- batch punch, 621- fixed part, 622- mounting hole one, 623- mounting hole two, 624- punch jaw, 7- pushing device two, 71- base, 72- moving plate, 73- placement site, 74- push cylinder one, 8- turnover device, 81- fixed seat, 82- cylinder two, 83- moving seat, 84- rotating assembly, 841- fixed cylinder, 842- cylinder three, 843- movable cylinder, 844- strip hole one, 845- strip hole two, 846- lever, 85- clamping jaw, 9- fan housing, 91- cover, 92- blade, 93- cylinder, 94- heat dissipation hole, 95- notch. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0034] Please refer to Figures 1-9 ;

[0035] The full-automatic batch punch removing equipment aims to remove the batch punch of the metal fan housing 9 and improve the assembly yield. First, the position of the batch punch on the fan housing 9 is described with reference to Figure 1 The fan housing 9 mainly includes a cover 91, blades 92 and a cylinder 93. The cylinder 93 is hollow for installing a fan. The blades 92 are not rotating and mainly function to form an air duct. A plurality of heat dissipation holes 94 are arranged in an annular array at the end face of the cylinder 93. The batch punch exists at the inner side of the two ends of the cover 91 and the position of the heat dissipation holes 94. The specific structure of the equipment is described below.

[0036] Specifically, the machine 1 is provided with a feeding device 2, a transfer device 3, a polishing device 4, a pushing device one 5 and a stamping device 61. In this embodiment, the feeding device 2 can be a belt conveying device. A plurality of fan housings 9 are sequentially pushed forward. The pushing device two 7 is connected with the turnover device 8 and moves synchronously. The transfer device 3 is used to obtain the fan housing 9 and shuttles between the pushing device two 7, the turnover device 8 and the pushing device one 5. The pushing device is used to push the fan housing 9 into the stamping device 61.

[0037] When working, the fan housings 9 in a vertical state are pushed out one by one by the feeding device 2, the fan housing 9 at the outermost end enters the pushing device two 7 after reaching the end, then the pushing device two 7 moves transversely to the transfer device 3, at the same time, the pushing device two 7 is dislocated with the end of the feeding device 2 to block the outlet, and drives the turnover device 8 to move synchronously; then the transfer device 3 obtains the fan housing 9 in the pushing device two 7 and transfers it to the turnover device 8, and then the pushing device resets to correspond to the end of the feeding device 2, at the same time, the turnover device 8 corresponds to the polishing device 4, first, the polishing device 4 polishes the inner edge of the end of the fan housing 9 at the current position to remove burrs, then the turnover device 8 drives the fan housing 9 to rotate the reverse side, and then the other end face of the fan housing 9 is polished by the polishing device 4 to remove burrs;

[0038] At this time, another fan housing 9 to be processed enters the pushing device two 7, then the pushing device two 7 is dislocated with the feeding device 2 again and drives the turnover device 8 to move to the position corresponding to the transfer device 3, the fan housing 9 in the turnover device 8 is transferred to the pushing device one 5 by the transfer device 3, and then the fan housing 9 in the feeding device 2 is transferred to the turnover device 8, and the cycle is repeated.

[0039] It should be noted that the transfer device 3 is composed of a multi-axis moving device and a circular air claw, the circular air claw has four clamping claws 85 which can better fix the fan housing 9, preferably, a rotary air cylinder and a visual detection device can also be installed, wherein the rotary air cylinder is used to adjust the angle of the fan housing 9, so that it can meet the angle alignment requirements of subsequent processing, and the visual detection device has two functions, the first function is to obtain the orientation of the current fan housing 9 through the visual detection device, and then input it into the control system, and adjust it by the turnover device 8, the second function is to check the burr polishing situation, if there are still burrs, return to the polishing device 4 for polishing again.

[0040] Preferably, two independently controlled circular air claws can be provided in the transfer device 3, one of which can be used to take out the fan housing 9 from the turnover device 8 and transfer it to the pushing device one 5, and the other air claw is used to transfer the fan housing 9 in the pushing device two 7 to the turnover device 8, which reduces the waiting time and improves the work efficiency.

[0041] When the fan housing 9 is placed in the pushing device one 5, the punching device 61 below the pushing device one 5 is used, the punching device 61 is provided with a punching head 62, a plurality of punching claws 624 are arranged in an annular array at the end of the punching head 62, the plurality of punching claws 624 correspond to the through hole 616, and the shape is matched, preferably, in order to avoid the punching claws 624 from being extruded to other positions, the position of the fan housing 9 needs to be fixed, for reference Figure 8The pushing device one 5 in the embodiment comprises a cylinder four 51, the output end of the cylinder four 51 is connected with a jig 52, the jig 52 is slidingly connected with the rack, the jig 52 is provided with an acupoint 53 for placing the fan shell 9, so that the fan shell 9 is in an upright state, the jig 52 is provided with the acupoint 53 for placing the fan shell 9, the jig 52 is provided with a limiting protrusion 54 extending to the acupoint 53, a notch 95 is provided on the outer side of the fan shell 9 and is adapted to the limiting protrusion 54, then the batch punch is pushed to move downward by the stamping device 61, the pawl 624 enters into the through hole 616, and the outer side of the pawl 624 is in contact with the inner side of the through hole 616, the batch punch formed at the positions is removed, then the stamping device 61 drives the batch punch head 62 to move upward, so that the plurality of pawls 624 are separated from the fan shell 9, and finally the fan shell 9 in the acupoint 53 is taken out by the blanking device (not shown).

[0042] The cooperation of the above-mentioned various devices realizes the polishing and batch punch removing operations, realizes the automatic processing, does not need the person to detect the products one by one, effectively improves the production efficiency, makes every part meet the use standard, and reduces the assembly problem.

[0043] Referring to Figure 3 and Figure 4 , one of the embodiments of the pushing device two 7 comprises a base 71, the base 71 is slidingly connected with a moving plate 72, the moving plate 72 is surrounded to form a placing position 73, one side of the placing position 73 is provided with an opening corresponding to the output end of the feeding device 2, the moving plate 72 is connected with a pushing cylinder one 74, and the turnover device 8 is installed on the moving plate 72; the moving plate 72 reciprocatingly moves on the base 71 by the pushing cylinder one, so that the placing position 73 and the feeding device 2 are switched between the dislocation position and the corresponding position, of course, the side of the placing position 73 is provided with a shielding part for plugging the outlet of the feeding device 2, when the moving plate 72 moves, the turnover device 8 also moves synchronously, the synchronous movement is realized by installing the turnover device 8 and the placing seat together, the material switching is facilitated, and the use of the additional driver can be reduced.

[0044] Further, referring to Figure 5 , the turnover device 8 comprises a fixed seat 81, the fixed seat 81 is installed with a cylinder two 82 on both sides, the output end of the cylinder two 82 is connected with a moving seat 83, the moving seat 83 is slidingly connected with the fixed seat 81, and the rotating assembly 84 is arranged on the moving seat 83, the output end of the rotating assembly 84 is connected with a clamping jaw 85; the two clamping jaws 85 are in a state of moving away, when the fan shell 9 is placed between the two clamping jaws 85, the two cylinder twos 82 respectively push the moving seat 83 to move close to each other, synchronously drive the clamping jaw 85 and the rotating assembly 84 to move, clamp the middle position of the fan shell 9 through the two clamping jaws 85, then perform the polishing operation, and drive the clamping jaw 85 to rotate and make the fan shell 9 rotate synchronously through the rotating assembly 84.

[0045] The rotating assembly 84 can adopt a rotary cylinder or a rotary motor, but the rotary cylinder cannot accurately control the angle and is prone to deflection under external force, while the rotary motor can accurately control the rotation angle, usually uses an encoder to measure the deflection angle, but needs to write a program in the control system to receive and feedback, and is also prone to deflection under external force, so the above two devices are not the preferred solution, and the embodiment is realized by adopting another structure, specifically comprising a fixed cylinder 841, one end of the fixed cylinder 841 is connected with the moving seat 83, and the other end is connected with a cylinder three 842, the fixed cylinder 841 is provided with a movable cylinder 843, one end of the movable cylinder 843 is rotatably connected with the moving seat 83, and an obliquely arranged strip hole one 844 is arranged on the side wall of the movable cylinder 843, it should be noted that the movable cylinder 843 is in the shape of a cylinder, and the strip hole one 844 is obliquely arranged to form a state similar to a spiral, the outer side of the fixed cylinder 841 is provided with a linearly arranged limiting strip hole two 845, preferably, the strip hole one 844 and the strip hole two 845 each have two, and are arranged in correspondence with the inside and outside respectively, the output end of the cylinder three 842 extends into the movable cylinder 843, and a lever 846 is arranged at the output end and extends through the strip hole one 844 and the strip hole two 845.

[0046] It should be noted that a bearing can be arranged on the moving seat 83, and the movable cylinder 843 extends out of the bearing and is connected.

[0047] Through the extension and retraction action of the cylinder three 842, the lever 846 can reciprocate along the strip hole two 845, and at the same time, since the strip hole one 844 is spirally arranged, the position of the strip hole one 844 will change constantly when the lever 846 reciprocates, thereby realizing rotation, and the angle of rotation to be realized is realized by the deflection angles of the two ends of the strip hole one 844, which are pre-customized, for example, the fan shell 9 needs to rotate 180°, so the deflection angles of the two ends of the strip hole one 844 are 180°, and the lever 846 will not move and will not be deflected when the cylinder three 842 is kept in the extended state. Through the above structure, the rotating action can be realized, and the deflection can be prevented under the action of external force.

[0048] The external force mentioned above mainly comes from the force applied to the fan shell 9 during polishing operation, in addition, if the traditional flat grinding method is used for polishing, a downward force will be applied to the fan shell 9, and the clamping method will make the fan shell 9 slide downward, and the polishing effect is poor. Figure 3 and Figure 4The polishing device 4 includes a moving component 41, on which a lifting component 42 is mounted. A drive motor 43 is mounted on the moving end of the lifting component 42, and a fixed head 44 is mounted on the output end of the drive motor 43. Several polishing rods 45 are arranged in a circular array along the circumferential direction on the lower end face of the fixed head 44. The several polishing rods 45 are arranged in a circle, and the outermost circumference of the circle is adapted to the inner diameter of the fan housing 9. That is, after the polishing rods 45 penetrate into the fan housing 9, they contact its inner edge. Of course, only the end position needs to be polished, and it is not necessary to extend too far into the interior. Then the drive motor 43 drives the polishing rods 45 to rotate. At this time, the fan housing 9 is subjected to radial force and will not slide downward.

[0049] One embodiment of the present invention relates to the burr punch 62, see reference to Figure 9 Further explanation based on the burr punch 62 specifically includes a fixing part 621. The fixing part 621 has a ring array of several mounting holes 622 and 623 for mounting the punch 624. The mounting holes 622 and 623 are staggered and have different shapes and sizes. By setting two sets of different types of mounting holes, the burr removal operation can be performed on different models of fan housings 9. Specifically, the corresponding punch 624 is replaced according to the model of the fan housing 9 to be processed. It should be noted that the differences between different models of fan housings 9 lie in the shape of the blades 92 and the shape of the air duct formed, but the position of their heat dissipation holes 94 is the same.

[0050] In this embodiment of the invention, reference is made to Figure 6 and Figure 7 The fixture 52 is provided with several positioning holes 56, and the stamping device 61 is provided with positioning pins 615 that cooperate with the positioning holes 56. The positioning pins 615 follow the movement of the stamping device 61. When working, the stamping device 61 moves downward. Only when the positioning pins 615 enter the positioning holes 56 can the punch claws 624 contact the fan housing 9, so as to play a positioning and protection role.

[0051] Furthermore, the acupoint 53 is a through groove, and a step 55 is provided on the inner side of the through groove. When the fan housing 9 is placed in the acupoint 53, its lower end will abut against the step 55 and be fixed. In addition, the fixture 52 is slidably connected to the frame, and distance sensors are provided on both sides corresponding to the sliding direction of the fixture 52. The sliding distance of the fixture 52 is controlled by the distance sensors.

[0052] In this embodiment of the invention, reference is made to Figure 6The stamping device 61 comprises a fixed support 611, a power assembly 612 is installed on the fixed support 611, the power assembly 612 is vertically installed, specifically can be a cylinder or a hydraulic cylinder, and the output end thereof faces downward, a connecting seat 613 is installed on the output end of the power assembly 612, a positioning column 615 and a batch punch 62 are installed at the bottom of the connecting seat 613, a fixed support 614 is arranged in the fixed support 611, the fixed support 614 can be connected with the fixed support 611 or can be installed on a rack, a guide hole through which the positioning column 615 passes is arranged on the fixed support 614, and a through hole 616 through which a stamping claw 624 passes is arranged, the design of the positioning column 615 and the guide hole can limit the connecting seat 613 from deviating during movement, that is, the position of the batch punch 62 can be ensured to be stable.

[0053] It will be obvious to a person skilled in the art that, in its broadest form, the application is not limited to any of the embodiments described herein, nor to the details of the foregoing disclosure. The present application can be implemented in other specific forms without departing from the spirit or essential characteristics thereof. The presently disclosed embodiments are therefore considered in all respects to be illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the claims is to be construed as limiting the claims to the exact construction set forth.

[0054] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every implementation according to the embodiments contains all of the features that are described in the specification. This manner of describing the application is merely exemplary and illustrative of specific embodiments and the present application is not limited to the embodiments described in the specification, but can be implemented in other specific forms without departing from the spirit or essential characteristic of the present application. The present specification and described embodiments are therefore to be considered in all respects as illustrative and not restrictive, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the features indicated by the reference signs.

Claims

1. An automatic metal housing batch sharpener for a blower, characterized by: Including machine table (1), the machine table (1) is installed with feeding device (2), transfer device (3), polishing device (4), pusher one (5) and punch device (61); The feeding device (2) is used for conveying fan housing (9), and the pusher two (7) is arranged at the end of the fan housing (9), the pusher two is connected with turnover device (8), and both are synchronous movement; The turnover device (8) is used to drive the axial rotation of the fan housing (9), and the burr removal operation is carried out on both ends of the fan housing (9) through the polishing device (4); The transfer device (3) is used to obtain the fan housing (9), and shuttles between the pusher two, the turnover device (8) and the pusher one (5); The pusher one (5) is used for pushing the fan housing (9) into the punch device (61), the punch device (61) is provided with batch edge punch (62), the batch edge punch (62) is provided with a plurality of claw (624) in the form of annular array at the end, the claw (624) can be inserted into the end of the fan housing (9); The pusher two includes a base (71), the base (71) is slidably connected with a moving plate (72), the moving plate (72) is surrounded to form a placing position (73), the moving plate (72) is connected with a push cylinder (74), and the turnover device (8) is installed on the moving plate (72); The turnover device (8) includes a fixed seat (81), the fixed seat (81) is installed with a cylinder (82) on both sides, the cylinder (82) is connected with a moving seat (83) at the output end, the moving seat (83) is slidably connected with the fixed seat (81), and a rotating assembly (84) is arranged on the moving seat (83), the output end of the rotating assembly (84) is connected with a clamping jaw (85); The polishing device (4) includes a moving assembly (41), the moving assembly (41) is installed with a lifting assembly (42), the moving end of the lifting assembly (42) is installed with a drive motor (43), the output end of the drive motor (43) is installed with a fixed head (44), the lower end surface of the fixed head (44) is annularly arranged with a plurality of polishing rods (45) along the circumference direction, and the polishing rods (45) are in contact with the inner edge of the fan housing (9); The batch edge punch (62) includes a fixed part (621), a plurality of mounting holes one (622) and mounting holes two (623) are arranged in the form of annular array in the fixed part (621), which are used for mounting the claw (624), the mounting holes one (622) and the mounting holes two (623) are staggered, and the shapes and sizes of the mounting holes one (622) and the mounting holes two (623) are different.

2. An apparatus for batch sharpening of metal housings of automatic blowers according to claim 1, characterized in that: The rotating assembly (84) includes a fixed cylinder (841), one end of which is connected with the moving base (83), and the other end is connected with a cylinder three (842), the fixed cylinder (841) is provided with a movable cylinder (843), one end of the movable cylinder (843) is rotatably connected with the moving base (83), an obliquely arranged slot one (844) is arranged on the side wall of the movable cylinder (843), a linearly arranged slot two (845) is arranged on the outside of the fixed cylinder (841), the output end of the cylinder three (842) extends into the movable cylinder (843), and a lever (846) is arranged at the output end, the lever (846) penetrates through the slot one (844) and the slot two (845).

3. An apparatus for batch sharpening of metal housings of automatic blowers as claimed in claim 1, wherein: The pushing device one (5) includes a cylinder four (51), the output end of the cylinder four (51) is connected with a jig (52), the jig (52) is slidingly connected with the rack, and the jig (52) is provided with an acupoint (53) for placing the fan shell (9), so that the fan shell (9) is in a vertical state.

4. An apparatus for batch sharpening of metal housings of automatic blowers according to claim 3, characterized in that: The jig (52) is provided with a plurality of positioning holes (56), the stamping device (61) is provided with a positioning column (615) matched with the positioning hole (56), and the positioning column (615) moves along with the stamping device (61).

5. An apparatus for batch trimming of metal housings of an automatic blower as defined in claim 4, wherein: The stamping device (61) includes a fixed support one (611), the fixed support one (611) is provided with a power assembly (612), the output end of the power assembly (612) is provided with a connecting seat (613), the positioning column (615) and the punching head (62) are arranged at the bottom of the connecting seat (613), a fixed support two (614) is arranged in the fixed support one (611), the fixed support two (614) is provided with a guide hole through which the positioning column (615) penetrates, and is provided with a through hole (616) through which the stamping claw (624) penetrates.

6. An apparatus for batch trimming of metal housings of an automatic blower as defined in claim 3, wherein: The acupoint (53) is a through groove, and the inside of the through groove is provided with a step (55) for fixing the fan shell (9).

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