Die casting punching equipment

Abstract

The invention belongs to the technical field of die casting production, particularly relates to die casting punching equipment, and provides the following scheme aiming at the problem that in the prior art, a plurality of clamping and shaping positions are arranged when irregular die castings are punched, so that the clamping positions need to be adjusted for multiple times during punching, and the die casting punching equipment comprises an equipment mounting table and a tool machine table; a rack is fixed to the upper surface of the equipment mounting table, a CNC punching machine is slidably connected to the top end of the rack, the side face of the tool table and the equipment mounting table are fixed together through bolts, and a round hole is reserved in the middle of the upper surface of the tool table. Before an irregular casting body needs to be punched, only two holes of the irregular casting body need to be connected to the first fixing sleeve rod and the second fixing sleeve rod in a sleeving mode, the distance between the first fixing sleeve rod and the second fixing sleeve rod is adjusted, then the top end of the irregular casting body is tightly pressed above the two first conical abutting pipes through the pressing mechanism, and at the moment, punching can be conducted, and any position of the periphery of the irregular casting body can be punched.

Description

Technical Field

[0001] The invention relates to the technical field of die casting production, in particular to a die casting punching device. Background Art

[0002] Some mechanical parts are often formed by die-casting due to their special shapes and certain strength and rigidity requirements. As the name suggests, die-casting is the process of melting the metal raw materials into liquid and then pressure casting them into the mold. In this way, the preliminary die-casting parts are formed. Then the die-casting parts are polished and sent to the CNC workshop for precision processing. After processing, deburring, drilling and tapping are carried out before they are considered complete.

[0003] After searching, it is found that the existing equipment for punching die-casting parts mostly clamps the die-casting parts first and then sends them to the CNC machine tool for punching. Since the punching position is often not necessarily in the middle, sometimes it is necessary to punch to the edge. At this time, since the clamping device is usually clamped at the edge, it is necessary to reselect the clamping position when punching the edge of the workpiece to prevent the workpiece from falling off when punching at the edge. Therefore, we propose a new punching equipment that can punch holes in various positions of the workpiece without changing the clamping position, so as to improve the punching efficiency. Summary of the invention

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a die-casting punching equipment, including an equipment mounting table and a tooling machine table, a frame is fixed on the upper surface of the equipment mounting table, a CNC punching machine is slidably connected to the top of the frame, and the side of the tooling machine table is fixed to the equipment mounting table by bolts, a circular hole is reserved in the middle of the upper surface of the tooling machine table, and a positioning tray with an opening downward and an overall disc-shaped structure is clamped in the circular hole, and the upper surface of the positioning tray is provided with positioning jacks distributed at equal distances and staggered, and the upper surface of the positioning tray is detachably fixedly connected to a fixing bracket, and the fixing bracket includes a mounting chassis fixed in the middle of the upper surface of the positioning tray, and the mounting chassis A vertical fixed sleeve rod 1 is fixed to the upper surface of the disk, and the outer wall of the fixed sleeve rod 1 is rotatably sleeved with a cross-connecting piece near the bottom end, a cross-bracket is inserted into the side of the cross-connecting piece, a support block is fixed to the end of the cross-bracket away from the cross-connecting piece, and a vertical fixed sleeve rod 2 is fixed to the top of the support block; three extension rods are fixed to the outer wall of the support block, and the lower surfaces of the ends of the extension rods are welded with insertion rods that are compatible with the aperture of the positioning socket, the circumferential outer walls of the fixed sleeve rod 1 and the fixed sleeve rod 2 are both screwed with a locking nut near the middle, and a conical locking tube 1 with a small head facing upward is sleeved above the locking nut, and the circumferential outer walls of the fixed sleeve rod 1 and the fixed sleeve rod 2 are located above the casting body and are provided with a clamping mechanism.

[0005] A further configuration is that the upper surface of the positioning tray is configured to be convex in the middle, and a plurality of equally spaced discharge grooves are provided on the upper surface of the tooling machine near the circumferential edge of the positioning tray; through the provided discharge grooves and the positioning tray convex in the middle, waste chips can be promptly slid away from the positioning tray during tapping or punching in conjunction with mechanical vibration.

[0006] A further configuration is that a plurality of anti-slip grooves are formed on the outer wall of the cross support rod, and a self-locking screw hole is formed on the side of the cross connection piece, and a positioning bolt is screwed into the self-locking screw hole.

[0007] A further configuration is that the extension rod is made of spring steel material, and the diameters of the upper and lower ends of the rod are different, and the diameter of the bottom end of the rod is smaller than the diameter of the top end. When in use, it can be ensured that as many as possible three rods can be inserted into nearby positioning holes to improve stability in the horizontal direction.

[0008] A further configuration is that the aperture of the positioning hole is equal to the aperture of the middle position of the insertion rod. By configuring in this way, the insertion rod can be half inserted into the positioning hole, thereby cooperating with the downward pressure of the cross support rod to make the whole more stable in the vertical direction.

[0009] A further configuration is that the clamping mechanism includes a conical abutment tube 2 which is slidably sleeved on the outer walls of the fixed sleeve rod 1 and the fixed sleeve rod 2, and the circumferential outer walls of the fixed sleeve rod 1 and the fixed sleeve rod 2 are located at the top of the conical abutment tube 2 and are threaded with a top nut; the conical abutment tube 2 is symmetrical to the conical abutment tube 1; by setting the conical abutment tube 1 and the conical abutment tube 2 which are symmetrical to each other, in conjunction with the setting of the top nut, when fixing the casting body, it is only necessary to screw the top nut downward.

[0010] A further configuration is that a notch is provided near the top of the circumferential outer wall of the conical abutment tube 2. Through the notch, when punching is required near the axial hole, the notch only needs to be turned above the punching position.

[0011] A further configuration is that an annular double rail concentric with the positioning tray is fixed above the tooling machine, and a clamping mechanism is slidably connected in the annular double rail, the clamping mechanism includes two sliders that are centrally symmetrical to each other, the equipment structures at the top of the two sliders are centrally symmetrically distributed, and a grooved slide rail extending toward the center line is fixed to the top of the slider, an electric push rod is fixed to the end of the grooved slide rail near the outer edge of the circumference, and a boss sliding block is slidably connected to one end of the grooved slide rail near the casting body, the upper surface of the grooved slide rail is slidably clamped with an L-shaped card strip between the boss sliding block and the electric push rod, and the L A rotating shaft frame is provided at the top of the card plate strip, and a V-shaped clamping piece is rotatably connected to the rotating frame, and the V-shaped clamping piece is made of spring steel; it has a certain buffering force and pre-tightening force, and an arc-shaped clamping block is fixed near the top of the side of the boss sliding block away from the electric push rod, and sliding sockets of T-shaped structure are opened at both ends of the side of the arc-shaped clamping block close to the casting body, and a one-way propulsion rod and a back-off pressure rod perpendicular to them are respectively slidably connected in the two sliding sockets, the outer wall of the one-way propulsion rod is provided with right-angled back-off teeth, and a return spring is provided at the end of the one-way propulsion rod and the back-off pressure rod away from the casting body.

[0012] A further configuration is that a same half-toothed ring is fixed between the two sliders, and a plurality of limiting holes are opened on the half-toothed ring; a folding fixing frame is fixed on the upper surface of the equipment mounting platform below the frame, and an electrically controlled positioning pin matching the limiting holes is fixed on the top of the folding fixing frame; a reduction motor is fixed in the middle of the equipment mounting platform, and an active gear meshing with the half-toothed ring is fixed on the top of the output shaft of the reduction motor; the active gear and the electrically controlled positioning pin can assist in improving the stability of the clamping position of the clamping mechanism.

[0013] A further arrangement is that the clamping mechanism also includes grooves which are symmetrically distributed on the outer wall of the fixed sleeve rod, and the bottom ends of the grooves are hinged with expansion rods. After all the expansion rods are expanded, they present an inverted umbrella-like structure, and a conical stop block is screwed on the top of the fixed sleeve rod, and a rubber sleeve is sleeved on the outer wall of the fixed sleeve rod. When the shaft hole needs to be fixed, it is only necessary to screw the conical stop block downward. The rubber sleeve can not only prevent the shaft hole from being squeezed and damaged, but also has an anti-slip and anti-falling effect.

[0014] The beneficial effects of the present invention are:

[0015] 1. By setting the fixed bracket, before punching the irregular casting body, it is only necessary to sleeve the two holes on the fixed sleeve rod 1 and the fixed sleeve rod 2 with adjusted spacing, and then use the clamping mechanism to press the top tightly on the two conical pipes 1. At this time, punching can be performed at any position around.

[0016] 2. By providing the anti-slip groove and positioning bolts, the cross support rod can be positioned after the length of the cross support rod is fixed, ensuring that the distance between the fixed sleeve rod 1 and the fixed sleeve rod 2 will not change.

[0017] 3. The one-way push rod can be used to clamp the irregular outer wall to ensure that the edge of the casting body can remain horizontal when punching, so as to ensure smooth punching and improve the quality and accuracy of punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention when it is clamped and ready for punching;

[0019] Figure 2 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 A top view of the structure of the present invention before use;

[0021] Figure 4 It is a three-dimensional structural schematic diagram of the fixing bracket of the present invention;

[0022] Figure 5 It is a three-dimensional structural schematic diagram of the clamping mechanism in the present invention;

[0023] Figure 6 is a top view of the clamping mechanism of the present invention;

[0024] Figure 7 For the present invention Figure 6 Sectional view along line AA.

[0025] In the figure: 1. Equipment installation table; 2. Tooling machine table; 201. Excretion trough; 3. Limit hole; 4. Half gear ring; 5. Electric push rod; 6. Sliding block; 7. Grooved slide rail; 8. Positioning tray; 801. Positioning jack; 9. Ring double rail; 10. Cross connection piece; 11. Casting body; 12. V-shaped fastening piece; 13. CNC punching machine; 14. Folding fixed frame; 15. Driving gear; 16. Frame; 17. Reduction Speed ​​motor; 18, fixed sleeve rod 1; 19, horizontal support rod; 20, fixed sleeve rod 2; 21, conical abutment tube 1; 22, mounting chassis; 23, rubber sleeve; 24, conical abutment block; 25, expansion rod; 26, conical abutment tube 2; 27, insertion rod; 28, extension rod; 29, boss sliding abutment block; 30, arc clamping block; 31, anti-retraction pressure rod; 32, one-way propulsion rod; 33, L-shaped card strip; 34, reset spring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] In this embodiment

[0028] Reference Figure 1-7 A die-casting punching device comprises an equipment mounting platform 1 and a tooling machine platform 2, a frame 16 is fixed on the upper surface of the equipment mounting platform 1, a CNC punching machine 13 is slidably connected to the top of the frame 16, the side of the tooling machine platform 2 is fixed to the equipment mounting platform 1 by bolts, a circular hole is reserved in the middle of the upper surface of the tooling machine platform 2, and a positioning tray 8 with an opening downward and a disc-shaped structure as a whole is clamped in the circular hole, and the upper surface of the positioning tray 8 is provided with positioning sockets 801 which are equidistantly and staggeredly distributed, the upper surface of the positioning tray 8 is detachably fixedly connected with a fixing bracket, and the fixing bracket comprises a mounting chassis 22 fixed to the middle of the upper surface of the positioning tray 8, a vertical fixing sleeve rod 18 is fixed to the upper surface of the mounting chassis 22, and a cross-connecting piece 10 is rotatably sleeved on the outer wall of the fixing sleeve rod 18 near the bottom end, a cross-connecting piece 10 is inserted into the side of the cross-connecting piece 10, and a bracket is fixed at one end of the cross-connecting piece 10 away from the cross-connecting piece 10 The top of the support block is fixed with a vertical fixed sleeve rod 20; the outer wall of the support block is fixed with three extension rods 28, and the lower surface of the end of the extension rod 28 is welded with an insertion rod 27 that matches the aperture of the positioning socket 801. The circumferential outer walls of the fixed sleeve rod 18 and the fixed sleeve rod 20 are both screwed with a tightening nut near the middle, and the top of the tightening nut is sleeved with a conical abutment tube 21 with a small head facing upwards, and the circumferential outer walls of the fixed sleeve rod 18 and the fixed sleeve rod 20 are located above the casting body 11 and are provided with a clamping mechanism; through the set fixed bracket, before the irregular casting body 11 needs to be punched, it is only necessary to sleeve its two holes on the fixed sleeve rod 18 and the fixed sleeve rod 20 with the adjusted spacing, and then use the clamping mechanism to press the top end tightly on the top of the two conical abutment tubes 21, and then punching can be performed on any position around the casting body 11 without adjusting the clamping position.

[0029] The upper surface of the positioning tray 8 is arranged to be convex in the middle, and a plurality of equally spaced discharge grooves 201 are provided on the upper surface of the tooling machine table 2 near the circumferential edge of the positioning tray 8. By means of the set discharge grooves 201 and the positioning tray 8 convex in the middle, waste chips can be promptly slid away from the positioning tray 8 during tapping or punching in conjunction with mechanical vibration.

[0030] Among them, the outer wall of the cross support rod 19 is provided with multiple anti-slip grooves, and the side of the cross connecting member 10 is provided with self-locking screw holes, in which positioning bolts are screwed; through the anti-slip grooves and positioning bolts, the cross support rod 19 can be positioned after the length of the cross support rod 19 is fixed, ensuring that the distance between the fixed sleeve rod 18 and the fixed sleeve rod 20 will not change.

[0031] Among them, the extension rod 28 is made of spring steel material, and the diameters of the upper and lower ends of the insertion rod 27 are different. The diameter of the bottom end of the insertion rod 27 is smaller than the diameter of the top end. When in use, it can be ensured that as many as possible three insertion rods 27 can be inserted into nearby positioning holes 801 to improve stability in the horizontal direction.

[0032] Among them, the aperture of the positioning hole 801 is equal to the aperture of the middle position of the insertion rod 27. Through such a setting, the insertion rod 27 can be half inserted into the positioning hole 801, so as to cooperate with the downward pressure of the cross support rod 19 to make the whole more stable in the vertical direction.

[0033] Among them, the clamping mechanism includes a conical abutment tube 26 which is slidably sleeved on the outer walls of the fixed sleeve rod 18 and the fixed sleeve rod 20, and the circumferential outer walls of the fixed sleeve rod 18 and the fixed sleeve rod 20 are located at the top of the conical abutment tube 26 and are screwed with a top nut; the conical abutment tube 26 is symmetrical to the conical abutment tube 1 21; by setting the conical abutment tube 1 21 and the conical abutment tube 26 which are symmetrical to each other, and cooperating with the setting of the top nut, when fixing the casting body 11, it is only necessary to screw the top nut downward.

[0034] Among them, the outer circumferential wall of the conical abutting tube 26 is provided with a notch near the top. Through the provided notch, when punching is required near the shaft hole, it is only necessary to turn the notch to the top of the punching position.

[0035] Among them, an annular double rail 9 concentric with the positioning tray 8 is fixed above the tooling machine table 2, and a clamping mechanism is slidably connected in the annular double rail 9, and the clamping mechanism includes two sliders 6 that are centrally symmetrical to each other, and the equipment structures at the top of the two sliders 6 are centrally symmetrically distributed, and a grooved slide rail 7 extending toward the center line is fixed to the top of the slider 6, and an electric push rod 5 is fixed to the end of the grooved slide rail 7 near the outer edge of the circumference, and a boss sliding block 29 is slidably connected to the end of the grooved slide rail 7 near the casting body 11, and an L-shaped card strip 33 is slidably connected to the upper surface of the grooved slide rail 7 between the boss sliding block 29 and the electric push rod 5, and a rotating shaft frame is provided at the top of the L-shaped card strip 33, and a V-shaped clamping member 12 is rotatably connected to the rotating frame, and the V-shaped clamping member 12 is made of spring steel material ; There is a certain buffer force and preload force. An arc-shaped clamping block 30 is fixed near the top of the side of the boss sliding block 29 away from the electric push rod 5, and the arc-shaped clamping block 30 is provided with sliding sockets of T-shaped structure at both ends of the side close to the casting body 11. The two sliding sockets are respectively slidably connected with a one-way propulsion rod 32 and a back-stop pressure rod 31 perpendicular to each other. The outer wall of the one-way propulsion rod 32 is provided with right-angle back-stop teeth, and the one-way propulsion rod 32 and the back-stop pressure rod 31 away from the casting body 11 are provided with a reset spring 34; through the one-way propulsion rod 32, the irregular outer wall can be clamped to ensure that the edge of the casting body 11 can remain horizontal as a whole when punching, so as to ensure smooth punching and improve the punching quality and accuracy.

[0036] Among them, the same half-toothed ring 4 is fixed between the two sliders 6, and a plurality of limiting holes 3 are opened on the half-toothed ring 4; a folding fixing frame 14 is fixed on the upper surface of the equipment mounting platform 1 below the frame 16, and an electrically controlled positioning pin matched with the limiting hole 3 is fixed on the top of the folding fixing frame 14; a reduction motor 17 is fixed in the middle of the equipment mounting platform 1, and an active gear 15 meshing with the half-toothed ring 4 is fixed on the top of the output shaft of the reduction motor 17; the active gear 15 and the electrically controlled positioning pin are arranged to assist in improving the stability of the clamping position of the clamping mechanism.

[0037] When the device is used, firstly, the positions of the two axial holes of the casting body 11 are measured, and then the spacing between the fixing sleeve rod 18 and the fixing sleeve rod 20 is adjusted to be equal to the spacing between the two axial holes of the casting body 11; then the extension rod 28 is slightly bent so that the insertion rod 27 can be inserted into the nearby positioning insertion hole 801, and then the casting body 11 is supported and fixed, and the casting body 11 is sleeved on the fixing sleeve rod 18 and the fixing sleeve rod 20; then the top nut in the clamping mechanism is screwed downward so that the conical abutment tube 26 is The bottom end is tightly pressed against the top of the casting body 11; if punching is required near the axial hole, the notch on the side of the tapered abutment tube 26 is rotated to above the punching position; then the clamping mechanism is controlled to rotate to the most stable position for clamping "it is best not to have punching requirements near the contact position with the arc-shaped clamping block 30"; the one-way propulsion rod 32 is set to clamp the irregular outer wall to ensure that the edge of the casting body 11 can remain horizontal as a whole when punching is performed, so as to ensure smooth punching and improve the punching quality and accuracy.

[0038] Embodiment 2

[0039] Reference Figure 4 , a die-casting punching device; on the basis of other components of the first embodiment remaining unchanged, the clamping mechanism can also be grooves symmetrically distributed on the outer wall of the fixed sleeve rod 18, and the bottom ends of the grooves are hinged with expansion rods 25, and all the expansion rods 25 are inverted umbrella-shaped structures after being expanded, and the top of the fixed sleeve rod 18 is screwed with a conical block 24, and the outer wall of the fixed sleeve rod 18 is sleeved with a rubber sleeve 23; when the shaft hole needs to be fixed, it is only necessary to screw down the conical block 24, and the rubber sleeve 23 can not only prevent the shaft hole from being squeezed and damaged, but also have an anti-slip and anti-falling effect.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A die-casting punching device, comprising an equipment mounting platform (1) and a tooling machine platform (2), wherein a frame (16) is fixed to the upper surface of the equipment mounting platform (1), a CNC punching machine (13) is slidably connected to the top of the frame (16), and the side of the tooling machine platform (2) is fixed to the equipment mounting platform (1) by bolts, characterized in that: A circular hole is reserved in the middle of the upper surface of the tooling machine (2), and a positioning tray (8) with an opening facing downward and an overall disc-shaped structure is clamped in the circular hole. The upper surface of the positioning tray (8) is provided with positioning holes (801) that are equidistantly and staggeredly distributed. The upper surface of the positioning tray (8) is detachably and fixedly connected with a fixing bracket, and the fixing bracket includes a mounting chassis (22) fixed in the middle of the upper surface of the positioning tray (8). A vertical fixing sleeve rod 1 (18) is fixed on the upper surface of the mounting chassis (22), and a cross-connecting piece (10) is rotatably sleeved on the outer wall of the fixing sleeve rod 1 (18) near the bottom end. A cross-connecting piece (10) is inserted into the side of the cross-connecting piece (10), and a support block is fixed to the end of the cross-connecting piece (10) away from the cross-connecting piece (10), and a vertical fixing sleeve rod 2 (20) is fixed to the top of the support block; Three extension rods (28) are fixed to the outer wall of the support block, and the lower surfaces of the ends of the extension rods (28) are welded with insertion rods (27) that are compatible with the aperture of the positioning plug hole (801). The circumferential outer walls of the fixed sleeve rod 1 (18) and the fixed sleeve rod 2 (20) are both screwed with a locking nut near the middle, and a conical locking tube 1 (21) with a small head facing upward is sleeved above the locking nut. The circumferential outer walls of the fixed sleeve rod 1 (18) and the fixed sleeve rod 2 (20) are both provided with a clamping mechanism located above the casting body (11).

2. A die casting punching device according to claim 1, characterized in that: The upper surface of the positioning tray (8) is arranged in a state of being convex in the middle, and a plurality of equally spaced discharge grooves (201) are provided on the upper surface of the tooling machine (2) near the circumferential edge of the positioning tray (8).

3. A die casting punching device according to claim 1, characterized in that: The outer wall of the cross support rod (19) is provided with a plurality of anti-slip grooves, and the side surface of the cross connection piece (10) is provided with a self-locking screw hole, in which a positioning bolt is screwed.

4. A die casting punching device according to claim 1, characterized in that: The extension rod (28) is made of spring steel material, and the diameters of the upper and lower ends of the insertion rod (27) are different, and the diameter of the bottom end of the insertion rod (27) is smaller than the diameter of the top end.

5. A die casting punching device according to claim 4, characterized in that: The aperture of the positioning insertion hole (801) is equal to the aperture of the middle position of the insertion rod (27).

6. The die casting punching equipment according to claim 1, characterized in that: The clamping mechanism comprises a conical abutment tube 2 (26) which is slidably sleeved on the outer walls of the fixed sleeve rod 1 (18) and the fixed sleeve rod 2 (20), and the circumferential outer walls of the fixed sleeve rod 1 (18) and the fixed sleeve rod 2 (20) are both screwed with a top nut at the top end of the conical abutment tube 2 (26); the conical abutment tube 2 (26) and the conical abutment tube 1 (21) are symmetrical to each other.

7. A die casting punching device according to claim 6, characterized in that: The outer circumferential wall of the second conical abutting tube (26) is provided with a notch near the top.

8. The die casting punching device according to claim 1, characterized in that: A circular double rail (9) concentric with the positioning tray (8) is fixed above the tooling machine (2), and a clamping mechanism is slidably connected in the circular double rail (9), the clamping mechanism comprising two sliders (6) which are centrally symmetrical to each other, the equipment structures at the top ends of the two sliders (6) are centrally symmetrically distributed, and a grooved slide rail (7) extending toward the center line is fixed at the top ends of the sliders (6), an electric push rod (5) is fixed near the outer edge of the circumference of the grooved slide rail (7), and a boss sliding block (29) is slidably connected to one end of the grooved slide rail (7) near the casting body (11), an upper surface of the grooved slide rail (7) is slidably clamped with an L-shaped card strip (33) between the boss sliding block (29) and the electric push rod (5), and the L-shaped card strip (33) ) is provided with a rotating shaft frame at the top end, and a V-shaped pressing piece (12) is rotatably connected to the rotating frame, and the V-shaped pressing piece (12) is made of spring steel material; it has a certain buffering force and pre-tightening force, and an arc-shaped clamping block (30) is fixed near the top end on the side of the boss sliding block (29) away from the electric push rod (5), and the arc-shaped clamping block (30) is provided with sliding sockets of T-shaped structure at both ends of the side close to the casting body (11), and a one-way propulsion rod (32) and a mutually perpendicular anti-retraction pressure rod (31) are respectively slidably connected in the two sliding sockets, and the outer wall of the one-way propulsion rod (32) is provided with right-angle anti-retraction teeth, and the one-way propulsion rod (32) and the anti-retraction pressure rod (31) are provided with a reset spring (34) at the end away from the casting body (11).

9. A die casting punching device according to claim 8, characterized in that: A same half-toothed ring (4) is fixed between the two sliders (6), and a plurality of limiting holes (3) are formed on the half-toothed ring (4); a folding fixing frame (14) is fixed on the upper surface of the equipment mounting platform (1) below the frame (16), and an electric control positioning pin matched with the limiting hole (3) is fixed on the top of the folding fixing frame (14); a reduction motor (17) is fixed in the middle of the equipment mounting platform (1), and a driving gear (15) meshing with the half-toothed ring (4) is fixed on the top of the output shaft of the reduction motor (17).

10. The die casting punching equipment according to claim 1, characterized in that: The clamping mechanism also includes grooves arranged on the outer wall of the fixed sleeve rod (18) and distributed in a centrally symmetrical manner, the bottom ends of the grooves are hinged with expansion rods (25), and all the expansion rods (25) are expanded to form an inverted umbrella-like structure, and the top end of the fixed sleeve rod (18) is screwed with a conical stop block (24), and the outer wall of the fixed sleeve rod (18) is sleeved with a rubber sleeve (23).

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