CN115194009A

CN115194009A - Punching device for power supply casting shell capable of rounding off corners

Info

Publication number: CN115194009A
Application number: CN202211127149.7A
Authority: CN
Inventors: 季诚; 左清; 陈金荣
Original assignee: Jiangsu Xunlong Power Co ltd
Current assignee: Jiangsu Xunlong Power Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2022-10-18
Anticipated expiration: 2042-09-16
Also published as: CN115194009B

Abstract

The invention discloses a punching device for a power supply casting shell capable of rounding off corners, and belongs to the technical field of punching of power supply shells. It includes the equipment frame, work platform, the lift pressure plate, the pressure column, the rotating sleeve, the drift, the chamfer cutter of installing on the drift slides, drive lift pressure plate elevating movement's electric telescopic handle, a cutter contraction and expansion drive assembly for driving chamfer cutter contraction and expansion motion, a cutter rotation drive assembly for driving chamfer cutter pivoted, slide and install the locking Assembly who is used for locking power foundry goods casing on the lift pressure plate, and drive locking Assembly horizontal slip's horizontal position adjusting part. The punching device has reasonable structure, high-precision local locking and positioning function and punching and chamfering function, obviously improves the punching efficiency and the punching quality, and can be used for the shell of a power supply casting.

Description

Punching device for power supply casting shell capable of rounding off corners

Technical Field

The invention mainly relates to the technical field of punching of power supply shells, in particular to a punching device for a power supply casting shell capable of rounding.

Background

Compared with drilling, punching is widely used in aluminum alloy processing because of high punching efficiency and small punching deformation. The casing of the power supply casting is usually made of aluminum alloy materials, so that punching treatment is needed before use. In the prior art, the integral position of a power supply casting shell needs to be locked before the power supply casting shell is punched, and then punching operation is carried out. Although the punching of the power supply casting shell is realized in the prior art, certain defects still exist: 1. the shell locking device usually adopts a vertical movement mode to lock the position, so that the locking position cannot be adjusted along the horizontal direction, and the shell of a power supply casting with a complex shape cannot be well locally locked and positioned, so that the whole shell is slightly displaced and deformed during punching; 2. due to the thin wall thickness of the power supply casting shell, the casting shell can generate obvious local deformation near the punching position, such as obvious burr phenomenon after punching, and the punching with low surface quality needs to be processed by later deburring. Therefore, it is desirable to design a rounding punch apparatus that can significantly improve the quality of the punched surface.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: aiming at the technical problems in the prior art, the invention provides the punching device which is reasonable in structure, has the high-precision local locking and positioning functions and the punching and chamfering functions, obviously improves the punching efficiency and the punching quality, and can be used for the shell of the power casting.

In order to solve the problems, the solution proposed by the invention is as follows: a punching device for power casting casing fillet, it includes equipment rack, but the work platform of level (l) ing position, and follow the lift pressure plate that the vertical direction slip installed in equipment rack, still include: fixed install in lift pressure plate middle part and vertical stretch downwards to work platform's pressure post rotates the suit and is in rotation sleeve on the pressure post is fixed install in rotate the drift of sleeve lower extreme, slide and install chamfer cutter on the drift, drive lift pressure plate elevating movement's electric telescopic handle installs between lift pressure plate and the rotation sleeve, be used for the drive the cutter exhibition drive assembly of chamfer cutter exhibition motion with be used for the drive chamfer cutter pivoted cutter rotates drive assembly, slides and installs the locking Assembly who is used for locking power foundry goods casing on the lift pressure plate, and the drive locking Assembly horizontal slip horizontal position adjusting part.

The punch is a combination body formed by axially stacking a cylinder and a circular truncated cone, and the chamfering tool is arranged on the inclined side face of the circular truncated cone in a sliding manner; the upper end surface of the working platform is provided with a die groove for accommodating a power supply casting shell to be punched, the bottom of the die groove is provided with a lifting sleeve in a sliding manner along the vertical direction, and a cylinder body and an output rod of the hydraulic cylinder are respectively hinged with the working platform and the lifting sleeve; the lifting sleeve and the punch are coaxially arranged and used for supporting the power supply casting shell near the punched hole.

Further, the tool retracting drive assembly comprises: slide from bottom to top and do not rotate and install connecting piece A and connecting piece B on the rotation sleeve, the suit in rotate on the sleeve and both ends respectively with connecting piece A and the fixed continuous coil spring A of connecting piece B adopt support A to rotate install in cylindrical gear on the lift pressure plate slides along the plumb direction and installs on the lift pressure plate and with the driven lifting rack of cylindrical gear meshing, both ends respectively with the swing joint spare that lifting rack and connecting piece B are connected to and fixed the installing be used for the drive on the support A cylindrical gear pivoted elevator motor.

Further, the movable connecting piece comprises a connecting rod, and a ball C and a ball D which are arranged at two ends of the connecting rod, the connecting rod is fixedly connected with the lower end of the lifting rack, and the ball C and the ball D are respectively located on the upper side and the lower side of the connecting piece B and are in rolling connection with the connecting piece B.

Furthermore, the top of the chamfering tool is provided with a ball A, and the ball A is positioned in a linear ball groove which is arranged at the bottom of the connecting piece A along the radial direction.

Further, the tool rotary drive assembly comprises: the bevel gear A is fixedly arranged on the upper part of the rotating sleeve, the gear shaft is arranged on the lower part of the lifting pressure plate in a rotating mode through a support B, the bevel gear B is fixedly arranged on the gear shaft and is in meshed transmission with the bevel gear A, and the chamfering motor is connected with the output shaft through the gear shaft.

Furthermore, the number of the locking assemblies is two, and the two locking assemblies are respectively positioned on two sides of the pressure column; the locking assembly includes: the lifting device comprises a horizontal sliding block, a fixed sleeve, a lifting rod and a spiral spring, wherein the horizontal sliding block is arranged on the lifting pressure plate in a sliding mode, the fixed sleeve is fixedly arranged at the bottom of the horizontal sliding block along the vertical direction, the upper end of the lifting rod penetrates into the fixed sleeve in a sliding mode, the pressing head is fixedly arranged at the lower end of the lifting rod, and the spiral spring B is arranged in the fixed sleeve; and the two horizontal sliding blocks are respectively provided with a left-handed thread and a right-handed thread.

Further, the horizontal position adjustment assembly comprises: the two ends of the bidirectional screw rod respectively penetrate through the two horizontal sliding blocks in a spiral mode and are parallel to the lifting pressure plate, the bidirectional screw rod is arranged on the lifting pressure plate in a sliding mode, the screw rod support is arranged on the lifting pressure plate in a sliding mode, the linear motor is fixedly arranged on the lifting pressure plate, an output shaft of the linear motor is connected with the screw rod support, and the distance adjusting motor is fixedly arranged on the screw rod support, and the output shaft of the distance adjusting motor is in transmission connection with one end of the bidirectional screw rod; and one end of the bidirectional screw rod, which is close to the distance adjusting motor, is rotatably arranged on the screw rod bracket.

Furthermore, the quantity of pneumatic cylinder is two, two the pneumatic cylinder symmetry is installed the both sides of lift sleeve.

Compared with the prior art, the invention has the following advantages and beneficial effects: the punching device for the power supply casting shell capable of rounding off is provided with the two horizontal sliding blocks, and the positions of the two horizontal sliding blocks relative to the punch can be adjusted through the horizontal position adjusting assembly, so that local parts near the punching position of the power supply casting shell can be better locked and positioned, and the integral displacement and integral deformation of the power supply casting shell caused by overlarge punching pressure are effectively eliminated; in addition, the invention is also provided with a cutter contracting and expanding driving component and a cutter rotating driving component, when the punching is finished, the chamfering cutter which is slidably arranged on the punch can extend outwards, so that the chamfering operation of the end surface of the bottom of the punching hole is implemented, the local deformation near the punching position of the shell of the power supply casting is eliminated, and the local surface quality of the punching position of the shell of the power supply casting is improved. Therefore, the punching device has the advantages of reasonable structure, high precision in local locking and positioning function and punching and chamfering function, remarkably improved punching efficiency and punching quality, and can be used for the shell of the power supply casting.

Drawings

Fig. 1 is a schematic structural principle diagram of a punching device for rounding the shell of a power supply casting, provided by the invention.

Fig. 2 is a schematic view of the structure of the horizontal position adjusting assembly according to the present invention.

Fig. 3 is a partially enlarged view of a portion I in fig. 1.

Fig. 4 is a schematic view of the structure of the connector B of the present invention.

Fig. 5 is a schematic view of the structure of the connector a of the present invention.

In the figure, 11 — equipment rack; 12-a working platform; 120-a mold groove; 121-a lifting sleeve; 122-hydraulic cylinder; 13-a lifting pressure plate; 14-a pressure column; 15-rotating the sleeve; 16-a punch; 17-chamfering tool; 18-an electric telescopic rod; 21-connecting piece a; 211-linear ball grooves; 22-coil spring a; 23-connecting piece B; 231-circular ball groove; 24-lifting rack; 25-support a; 26-cylindrical gear; 27-a lifting motor; 31-bevel gear a; 32-bevel gear B; 33-gear shaft; 34-support B; 35-chamfering the motor; 4-a locking assembly; 41-horizontal sliding block; 42-a fixed sleeve; 43-coil spring B; 44-lifting rod; 45-pressure head; 51-a bidirectional screw; 52-screw support; 53-pitch motor; 54-linear motor; 61-lifting slide block; 62-ball a; 63-ball B; 64-ball C; 65-connecting rod; 66-ball D.

Detailed Description

The invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the punching device for the power casting housing capable of rounding the corner comprises an equipment frame 11, a working platform 12, a lifting pressure plate 13, a pressure column 14, a rotating sleeve 15, a punch 16, a chamfering tool 17, an electric telescopic rod 18, a tool retracting and expanding driving assembly, a tool rotating driving assembly, a locking assembly 4 and a horizontal position adjusting assembly. The equipment frame 11 is an inverted U-shaped bracket and is fixedly arranged along the vertical direction; the working platform 12 is positioned at the lower side in the equipment frame 11 and can be adjusted in position along the horizontal direction so as to conveniently punch holes at different positions of the casing of the power supply casting, the working platform 12 can be installed on a cross-shaped moving platform (not shown in the figure) during specific implementation, and the horizontal position of the working platform 12 can be adjusted by controlling the cross-shaped moving platform; the lifting pressure plate 13 is arranged on the upper side in the equipment frame 11 along the horizontal direction, two lifting slide blocks 61 are fixedly arranged at two ends of the lifting pressure plate respectively, and the two lifting slide blocks 61 are arranged on the upright columns at two sides of the equipment frame 11 in a sliding manner respectively, so that the lifting pressure plate 13 can move up and down along the equipment frame 11; the cylinder part of the electric telescopic rod 18 is fixedly arranged on a beam of the equipment frame 11, an output rod of the electric telescopic rod is connected with the lifting pressure plate 13, when the output rod of the electric telescopic rod 18 extends outwards, the lifting pressure plate 13 moves downwards, and when the output rod of the electric telescopic rod 18 retracts inwards, the lifting pressure plate 13 moves upwards. The pressure column 14 is installed along the vertical direction, the upper end of the pressure column is fixedly connected with the middle part of the lifting pressure plate 13, the rotating sleeve 15 is rotatably sleeved outside the pressure column 14, and the rotating sleeve 15 does not axially slide relative to the pressure column 14. In specific implementation, the rotating sleeve 15 can be rotatably sleeved outside the pressure column 14 through a bearing.

A punch 16 is fixedly mounted to the lower end of the rotary sleeve 15, and a chamfering tool 17 for chamfering the end face of the bottom of the punched hole is slidably mounted on the punch 16. Preferably, the punch 16 is a combination body formed by axially stacking a cylinder and a circular truncated cone, and the chamfering tool 17 is slidably arranged on the inclined side surface of the circular truncated cone; a die groove 120 for accommodating a power supply casting shell to be punched is formed in the upper end face of the working platform 12, a lifting sleeve 121 is arranged at the bottom of the die groove 120 in a sliding mode along the vertical direction, and a cylinder body and an output rod of a hydraulic cylinder 122 are respectively hinged to the working platform 12 and the lifting sleeve 121; the lifting sleeve 121 is coaxially mounted with the punch 16. In specific implementation, in order to ensure that the lifting pressure plate 13 directly generates thrust to the punch 16 when moving downwards, the lower end of the pressure column 14 needs to be in direct contact with the punch 16; meanwhile, in order to ensure that the punch 16 and the rotating sleeve 15 rotate smoothly relative to the pressure column 14, the friction between the pressure column 14 and the punch 16 needs to be reduced, so that a ball B63 can be arranged at the lower end of the pressure column 14, so that when the punch 16 rotates, the friction between the pressure column 14 and the punch 16 is rolling friction. In order to realize the sliding installation of the chamfering tool 17, a linear sliding groove can be arranged on the inclined side surface of the circular truncated cone along the radial direction, a tool sliding block is arranged in the linear sliding groove, and the chamfering tool 17 is fixedly connected with the tool sliding block. The cutter extending and retracting driving assembly drives the chamfering cutter 17 to slide outwards, so that the chamfering cutter 17 extends to the outer part of the side edge of the punch 16, the upper end face of the chamfering cutter 17 is in inclined contact with the bottom of the punched hole, and chamfering operation is conveniently carried out on the end face of the bottom of the punched hole; when the tool retracting drive assembly drives the chamfering tool 17 to slide inward, the chamfering tool 17 is retracted within the side edge of the punch 16 to facilitate punching of the punch 16 or withdrawal of the punch 16 from the punch. The internal shape of the die groove 120 is consistent with the external dimension of the power supply casting shell to be punched, so that the power supply casting shell to be punched is conveniently placed in the die groove 120; a vertical through hole is formed at the bottom of the die groove 120 located right below the punch 16, and the inner diameter of the vertical through hole is equal to the outer diameter of the lifting sleeve 121, so that the lifting sleeve 121 is slidably disposed in the vertical through hole. When the telescopic rod of the hydraulic cylinder 122 is shortest, the lifting sleeve 121 is located at the highest position, the top surface of the lifting sleeve 121 is flush with the bottom surface of the mold groove 120, and the lifting sleeve 121 is used for supporting the power supply casting shell near the punched hole so as to reduce local deformation of the power supply casting shell during punching; when the telescopic rod of the hydraulic cylinder 122 is at its longest, the lifting sleeve 121 is located at the lowest position, and the top surface of the lifting sleeve 121 is made to be far lower than the bottom surface of the mold groove 120, that is, the bottom of the power casting housing and the middle of the top of the lifting sleeve 121 can accommodate the chamfering tool 17, and at this time, the lifting sleeve 121 is used to create a working space for the chamfering tool 17.

As shown in fig. 1 and 3, the cutter retraction and extension driving assembly preferably includes: the lifting pressure plate comprises a connecting piece A21 and a connecting piece B23 which slide from bottom to top and are not rotated and are arranged on a rotating sleeve 15, a spiral spring A22 which is sleeved on the rotating sleeve 15 and is fixedly connected with the connecting piece A21 and the connecting piece B23 at two ends respectively, a support A25 is adopted to rotate a cylindrical gear 26 arranged on the lifting pressure plate 13, a lifting rack 24 which is arranged on the lifting pressure plate 13 in a sliding mode along the vertical direction and is in meshing transmission with the cylindrical gear 26, movable connecting pieces which are connected with the lifting rack 24 and the connecting piece B23 at two ends respectively, and a lifting motor 27 which is fixedly arranged on the support A25 and is used for driving the cylindrical gear 26 to rotate. During specific implementation, the upper section of the lifting rack 24 is a smooth straight rod section, the lower end of the lifting rack is a rack section, and the smooth straight rod section slides to penetrate through the lifting pressure plate 13, so that the movement guiding and the movement positioning of the lifting rack 24 are realized.

As shown in fig. 1 and 5, preferably, the top of the chamfering tool 17 is provided with a ball a62, and the ball a62 is located in a linear ball groove 211 opened in the radial direction at the bottom of the connecting member a 21. The lifting motor 27 drives the cylindrical gear 26 to rotate clockwise, the lifting rack 24 moves downwards, the connecting piece B23 moves downwards to compress the spiral spring A22, the connecting piece A21 further moves downwards, the ball A62 slides outwards in the linear ball groove 211 in the connecting piece A21, and the chamfering tool 17 is further driven to slide outwards along the inclined side face of the punch 16 until the chamfering tool 17 extends to the bottom of the punched hole, so that the end face of the bottom of the punched hole can be chamfered conveniently; the lifting motor 27 drives the cylindrical gear 26 to rotate anticlockwise, the lifting rack 24 moves upwards, the connecting piece B23 moves upwards, the elastic potential energy of the compressed spiral spring A22 is released, the connecting piece A21 moves upwards, the ball A62 slides inwards in the linear ball groove 211 in the connecting piece A21, and then the chamfering tool 17 is driven to slide inwards along the inclined side face of the punch 16 until the chamfering tool 17 retracts to the initial position, so that the punch 16 can conveniently withdraw from punching.

As shown in fig. 1 and 4, the movable connection member preferably includes a connection rod 65, and balls C64 and D66 provided at both ends of the connection rod 65, the connection rod 65 is fixedly connected to the lower end of the lifting rack 24, and the balls C64 and D66 are respectively located at upper and lower sides of the connection member B23 and are in rolling connection with the connection member B23. In specific implementation, the link 65 is a U-shaped rod with an opening pointing to the connecting member B23, and the ball C64 and the ball D66 are rotatably mounted at two ends of the U-shaped rod, respectively. The upper part and the lower part of the connecting piece B23 are respectively provided with a circular ball groove 231 which takes the rotation center of the connecting piece B23 as the center of a circle along the circumferential direction, and the ball C64 and the ball D66 are respectively positioned in the two circular ball grooves 231. When the connecting member B23 rotates synchronously with the rotating sleeve 15, the balls C64 and D66 can roll in the circular ball groove 231 in the connecting member B23.

The cutter rotates the drive assembly and installs between lift pressure plate 13 and rotating sleeve 15 for the drive rotates sleeve 15 and rotates, and then drives chamfer cutter 17 and rotates, carries out the chamfer operation to the bottom terminal surface that punches a hole. Preferably, the tool rotary drive assembly comprises: a bevel gear A31 fixedly installed on the upper portion of the rotating sleeve 15, a gear shaft 33 rotatably installed on the lower portion of the elevating pressure plate 13 by using a bracket B34, a bevel gear B32 fixedly installed on the gear shaft 33 and engaged with the bevel gear A31 for transmission, and a chamfering motor 35 having an output shaft connected with the gear shaft 33. In specific implementation, the chamfering motor 35 may be a speed reducing motor or a stepping motor with a controllable rotation speed. When the chamfering motor 35 works, the bevel gear B32 rotates to drive the bevel gear a31 meshed with the bevel gear B to rotate, so as to drive the rotating sleeve 15 and the punch 16 to rotate, and the chamfering tool 17 which is arranged on the punch 16 and is in an inclined state rotates, so that the bottom end face of the punched hole is chamfered.

A locking assembly 4 is slidably mounted on the lifting pressure plate 13 for locking the power casting housing so that the punch 16 does not displace relative to the power casting housing during punching. Preferably, the number of the locking assemblies 4 is two, and the two locking assemblies 4 are respectively positioned at two sides of the pressure column 14; the locking assembly 4 comprises: a horizontal slider 41 slidably mounted on the lifting pressure plate 13, a fixing sleeve 42 fixedly mounted at the bottom of the horizontal slider 41 in the vertical direction, a lifting rod 44 having an upper end slidably inserted into the fixing sleeve 42, a pressure head 45 fixedly mounted at the lower end of the lifting rod 44, and a coil spring B43 mounted in the fixing sleeve 42 and having two ends respectively connected to the horizontal slider 41 and the lifting rod 44; the two horizontal sliding blocks 41 are respectively provided with left-handed threads and right-handed threads. In particular, to ensure that the ram 45 contacts the upper surface of the power casting housing prior to punching, the bottom end face of the ram 45 is lower than the bottom end face of the punch 16. The reasonable selection of the rigidity of the coil spring B43 can adjust the positioning pressure of the power supply casting shell during punching, so that the power supply casting shell cannot displace during punching, and the accuracy of an impact position is improved.

As shown in fig. 2, the horizontal position adjusting assembly can drive the locking assembly 4 to horizontally slide so as to realize pressure locking on different positions of the power supply casting shell. Preferably, the horizontal position adjusting assembly comprises: a bidirectional screw 51 with two ends respectively threaded through the two horizontal sliders 41 and arranged parallel to the lifting pressure plate 13, a screw bracket 52 arranged on the lifting pressure plate 13 in a sliding manner, a linear motor 54 fixedly arranged on the lifting pressure plate 13 and with an output shaft connected with the screw bracket 52, and a pitch adjusting motor 53 fixedly arranged on the screw bracket 52 and with an output shaft in transmission connection with one end of the bidirectional screw 51; one end of the bidirectional screw 51 close to the distance adjusting motor 53 is rotatably arranged on the screw bracket 52. The pitch-adjusting motor 53 rotates forwards to drive the bidirectional screw 51 to rotate forwards, and the two horizontal sliding blocks 41 approach each other; the distance-adjusting motor 53 rotates reversely to drive the bidirectional screw 51 to rotate reversely, and the two horizontal sliding blocks 41 are far away from each other; when the output rod of the linear motor 54 extends, the screw rod bracket 52 moves rightwards, and then the two horizontal sliding blocks 41 are driven to move rightwards through the bidirectional screw rod 51; when the output rod of the linear motor 54 is shortened, the screw bracket 52 moves leftwards, and then the two horizontal sliders 41 are driven to move leftwards through the bidirectional screw 51. The simultaneous left and right movement of the two horizontal sliders 41 allows asymmetrical pressing of the two rams 45 with respect to the punch 16. When the power casting housing is punched a lot, there may be one or two punched holes right below the two pressing heads 45, and the position of the pressing heads 45 needs to be adjusted.

Preferably, the number of the hydraulic cylinders 122 is two, and the two hydraulic cylinders 122 are symmetrically installed at both sides of the lifting sleeve 121. The provision of two hydraulic cylinders 122 operating simultaneously improves the stability of the movement of the lifting sleeve 121.

The working process of the invention is as follows: firstly, placing a power supply casting shell to be punched in a mould groove 120 of a working platform 12, and adjusting the horizontal position of the working platform 12 to enable the position right below a punch 16 to be a punching position to be punched; starting the distance-adjusting motor 53 and the linear motor 54 according to actual conditions, adjusting the relative positions of the two horizontal sliding blocks 41, and ensuring that the two pressure heads 45 can effectively lock and press the power supply casting shell before punching; secondly, the electric telescopic rod 18 works to drive the lifting pressure plate 13 to move downwards, so that the two pressure heads 45 press the upper surface of the power supply casting shell, the lifting pressure plate 13 continues to move downwards, and the pressure column 14 directly acts on the punch 16 to punch a hole on the power supply casting shell; thirdly, the two hydraulic cylinders 122 work to drive the lifting sleeve 121 to move downwards, so that a working space capable of accommodating the chamfering tool 17 is formed between the lifting sleeve 121 and the power supply casting shell; fourthly, the lifting motor 27 rotates clockwise to enable the connecting piece B23 and the connecting piece A21 to move downwards, and the chamfering tool 17 moves downwards obliquely until the chamfering tool extends to the outer side of the bottom of the punched hole; fifthly, the chamfering motor 35 works to drive the bevel gear B32 and the bevel gear A31 to rotate in sequence, and then the chamfering tool 17 arranged on the punch 16 is driven to rotate through the rotating sleeve 15, so that the bottom end face of the punched hole is subjected to chamfering operation; sixthly, after chamfering, rotating the lifting motor 27 in the anticlockwise direction to enable the chamfering tool 17 to retract to the initial position; in the seventh step, the two hydraulic cylinders 122 work in reverse synchronously to drive the lifting sleeve 121 to move upwards to return to the initial position, and the electric telescopic rod 18 works in reverse to drive the lifting pressure plate 13 to move upwards to return to the initial height position.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through creative efforts should fall within the scope of the present invention.

Claims

1. A punching device that is used for power casting casing fillet, including equipment frame (11), but work platform (12) of level (l) ing position to reach along the vertical direction slip install lift pressure plate (13) in equipment frame (11), its characterized in that still includes:

the device comprises a pressure column (14) which is fixedly arranged in the middle of a lifting pressure plate (13) and vertically extends downwards to a working platform (12), a rotating sleeve (15) which is rotatably sleeved on the pressure column (14), a punch (16) which is fixedly arranged at the lower end of the rotating sleeve (15), a chamfering tool (17) which is arranged on the punch (16) in a sliding manner, an electric telescopic rod (18) which drives the lifting pressure plate (13) to move up and down, a tool retracting and expanding driving component which is arranged between the lifting pressure plate (13) and the rotating sleeve (15) and is used for driving the chamfering tool (17) to move up and down, a tool rotating and driving component which is arranged between the lifting pressure plate (13) and the rotating sleeve (15) and is used for driving the chamfering tool (17) to rotate, a locking component (4) which is arranged on the lifting pressure plate (13) in a sliding manner and is used for locking a power supply casting shell, and a horizontal position adjusting component which drives the locking component (4) to slide horizontally;

the punch (16) is a combination body formed by axially stacking a cylinder and a circular truncated cone, and the chamfering tool (17) is arranged on the inclined side surface of the circular truncated cone in a sliding manner; a die groove (120) for accommodating a power supply casting shell to be punched is formed in the upper end face of the working platform (12), a lifting sleeve (121) is slidably arranged at the bottom of the die groove (120) along the vertical direction, and a cylinder body and an output rod of a hydraulic cylinder (122) are respectively hinged with the working platform (12) and the lifting sleeve (121); the lifting sleeve (121) and the punch (16) are coaxially arranged and used for supporting a power supply casting shell near the punched hole.

2. The apparatus of claim 1, wherein the tool retraction drive assembly comprises: slide from bottom to top and do not rotate and install connecting piece A (21) and connecting piece B (23) on the rotating sleeve (15), the suit in rotating sleeve (15) go up and both ends respectively with connecting piece A (21) and connecting piece B (23) fixed helical spring A (22) that link to each other, adopt support A (25) to rotate install in cylindrical gear (26) on lift pressure board (13) slide along the vertical direction and install on lift pressure board (13) and with cylindrical gear (26) meshing driven lifting rack (24), both ends respectively with the swing joint spare that lifting rack (24) and connecting piece B (23) are connected to and fixed install be used for the drive on support A (25) cylindrical gear (26) pivoted elevator motor (27).

3. The punching device for the rounded corner of the casing of the power supply casting according to claim 2, wherein the movable connecting piece comprises a connecting rod (65), and balls C (64) and D (66) which are arranged at two ends of the connecting rod (65), the connecting rod (65) is fixedly connected with the lower end of the lifting rack (24), and the balls C (64) and D (66) are respectively positioned at the upper side and the lower side of the connecting piece B (23) and are in rolling connection with the connecting piece B (23).

4. A punch apparatus for casting of power supply casing fillets according to claim 2, characterized in that the chamfering tool (17) is provided at its top with balls a (62), said balls a (62) being located in linear ball grooves (211) opening radially at the bottom of the connection a (21).

5. The apparatus of claim 1 for the filletable punch of the housing of the power casting, wherein the cutter rotational drive assembly comprises: the bevel gear A (31) is fixedly arranged on the upper part of the rotating sleeve (15), a gear shaft (33) is rotatably arranged on the lower part of the lifting pressure plate (13) by adopting a bracket B (34), a bevel gear B (32) is fixedly arranged on the gear shaft (33) and is in meshing transmission with the bevel gear A (31), and a chamfering motor (35) is arranged, the output shaft of which is connected with the gear shaft (33).

6. A punch apparatus for power supply casting housing rounding according to claim 1, characterized in that the number of the locking assemblies (4) is two, two locking assemblies (4) being located on both sides of the pressure column (14); the locking assembly (4) comprises: the lifting pressure plate comprises a horizontal sliding block (41) which is arranged on the lifting pressure plate (13) in a sliding mode, a fixing sleeve (42) which is fixedly arranged at the bottom of the horizontal sliding block (41) along the vertical direction, a lifting rod (44) with the upper end penetrating into the fixing sleeve (42) in a sliding mode, a pressure head (45) which is fixedly arranged at the lower end of the lifting rod (44), and a spiral spring B (43) which is arranged in the fixing sleeve (42) and two ends of which are connected with the horizontal sliding block (41) and the lifting rod (44) respectively; and the two horizontal sliding blocks (41) are respectively provided with a left-handed thread and a right-handed thread.

7. The punch apparatus for power supply casting housing fillets of claim 6, wherein the horizontal position adjustment assembly comprises: the two-way screw rod (51) is arranged at two ends of the two-way screw rod respectively and spirally penetrates through the two horizontal sliding blocks (41) and is parallel to the lifting pressure plate (13), a screw rod bracket (52) is arranged on the lifting pressure plate (13) in a sliding mode, a linear motor (54) is fixedly arranged on the lifting pressure plate (13) and an output shaft of the linear motor is connected with the screw rod bracket (52), and a distance adjusting motor (53) is fixedly arranged on the screw rod bracket (52) and an output shaft of the distance adjusting motor is in transmission connection with one end of the two-way screw rod (51); one end of the bidirectional screw rod (51) close to the distance adjusting motor (53) is rotatably arranged on the screw rod bracket (52).

8. The punch apparatus for the filletable corner of the housing of a power casting of claim 1, wherein: the number of the hydraulic cylinders (122) is two, and the two hydraulic cylinders (122) are symmetrically arranged on two sides of the lifting sleeve (121).