Insert pin quick-changing structure of inverter shell die-casting die

Abstract

The utility model discloses an insert pin quick-change structure of an inverter shell die-casting die, an insert pin main body comprises an ejector rod pressing plate, the middle part of the bottom surface of the ejector rod pressing plate is fixedly connected with a traction plate, the two sides of the outer wall of the ejector rod pressing plate are both provided with screw holes, and the two sides of the top surface of the ejector rod pressing plate are both fixedly connected with extrusion rods; the insert pin body further comprises an insert pin ejector rod, a limiting groove is formed in the middle of the bottom end of the insert pin ejector rod, a push block is slidably connected to the upper end of the inner wall of the limiting groove, a second spring is fixedly connected to the middle of the top face of the push block, and the top end of the second spring is fixedly connected with the top end of the inner side of the limiting groove. Balls are movably installed on the inner side of the limiting groove and located on the two sides of the push block, one side of each ball abuts against the side edge of the push block, the side, away from the push block, of each ball extends to the surface of the insert pin ejector rod, the replacement period is short, the end of the insert pin does not need to be knocked and contacted in the replacement process, and potential safety hazards are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of die casting die accessory manufacturing technical field, concretely relates to a die pin quick change structure of die casting die of inverter shell. BACKGROUND

[0002] The die pin in the die casting die of inverter shell is a vital die accessory, which is used as detachable die core part and is used for accurately manufacturing the hole or special-shaped part on the shell in the die casting process.

[0003] In the prior art, the die pin structure is usually assembled by ordinary compression type, because the die pin is embedded in the die core, and the die core is locked in the die frame; if the die pin is replaced, the die core must be first disassembled from the die frame, and then the die pin head is knocked to take out the die pin, which is time-consuming and laborious, and may cause safety hazards and low production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problems as follows: the die pin is time-consuming and laborious to replace, may cause safety hazards and has low production efficiency.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] A die pin quick change structure of die casting die of inverter shell, comprising a die plate, a die pin body is arranged above the die plate;

[0007] The die pin body comprises a top rod pressing plate, a traction plate is fixedly connected to the middle part of the bottom surface of the top rod pressing plate, screw holes are formed in the outer walls of both sides of the top rod pressing plate, extrusion rods are fixedly connected to the top surfaces of both sides of the top rod pressing plate, and an abutting shaft is fixedly connected to the middle part of the top surface of the top rod pressing plate.

[0008] The die pin body further comprises a die pin top rod, a limiting groove is formed in the middle part of the bottom end of the die pin top rod, a push block is slidably connected to the inner wall of the upper end of the limiting groove, a second spring is fixedly connected to the middle part of the top surface of the push block, and the top end of the second spring is fixedly connected to the inner side top end of the limiting groove.

[0009] Among them, the ball is movably installed on the inner side of the limiting groove and on both sides of the push block, one side of each ball abuts against the side edge of the push block, and each ball extends to the surface of the die pin top rod on the side away from the push block.

[0010] As a further scheme of the utility model, the upper end of the push block is in a cylindrical shape, the lower end of the push block is in a circular truncated cone shape, and the diameter of the lower end of the push block gradually decreases from top to bottom.

[0011] As a further scheme of the present utility model: the outer wall of the abutting shaft is inserted with the inner lower end of the limiting groove, the top of the abutting shaft is abutted with the bottom surface of the push block, the top end of the two extrusion rods all extends to the upper of the ball.

[0012] As a further scheme of the present utility model: the top end middle part of the inlay needle top rod is fixedly connected with a threaded shaft, the top of the inlay needle top rod is also provided with a top rod, the bottom middle part of the top rod is provided with a threaded groove, the inside of the threaded groove is threadedly connected with the threaded shaft.

[0013] As a further scheme of the present utility model: the outer side wall of the top rod is provided with a plurality of anti-skid lines, the top surface middle part of the top rod is fixedly connected with an inlay needle end.

[0014] As a further scheme of the present utility model: the bottom surface of the plate body is movably installed with the top rod pressing plate, the top rod pressing plate is connected with a screw in the screw hole, the top end of the screw is threadedly connected with the plate body, the inner wall of the plate body is inserted with the extrusion rod, the bottom surface of the push ring is abutted with the extrusion rod.

[0015] As a further scheme of the present utility model: the bottom surface of the plate body is movably installed with the top rod pressing plate, the top rod pressing plate is connected with a screw in the screw hole, the top end of the screw is threadedly connected with the plate body, the inner wall of the plate body is inserted with the extrusion rod, the bottom surface of the push ring is abutted with the extrusion rod.

[0016] The present utility model has the advantages of:

[0017] The present utility model is supported and ejected by the top rod pressing plate, the top rod pressing plate is fixed on the outer surface of the mold base plate by a screw, when replacing, the top rod pressing plate is removed from the outside of the mold, the inlay needle top rod can drive the inlay needle end to pop out from the mold, the replacement period is short, and the inlay needle end does not need to be knocked during the replacement process, so that the safety hidden danger is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present utility model will be further described below in combination with the drawings.

[0019] Figure 1 It is the overall structure schematic view of the present utility model;

[0020] Figure 2 It is the overall structure schematic view of the inlay needle body in the present utility model;

[0021] Figure 3 It is the internal structure schematic view of the inlay needle body in the present utility model;

[0022] Figure 4 It is Figure 3 The enlarged structure schematic view of the area A in the present utility model;

[0023] Figure 5 is Figure 3 Enlarged structural schematic view of B area in the figure.

[0024] In the figure: 1, mold bottom plate; 101, plate body; 102, sliding groove; 103, spring one; 104, push ring; 105, screw; 2, insert needle main body; 201, top rod pressing plate; 202, traction plate; 203, extrusion rod; 204, abutting shaft; 205, insert needle top rod; 206, limiting groove; 207, spring two; 208, push block; 209, ball; 210, threaded shaft; 211, top rod; 212, threaded groove; 213, anti-skid pattern; 214, insert needle end. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] As Figures 1-5 shown, an insert needle quick-change structure of an inverter shell die-casting mold, comprising a mold bottom plate 1, the upper portion of the mold bottom plate 1 is provided with an insert needle main body 2; the insert needle main body 2 comprises a top rod pressing plate 201, the bottom surface middle portion of the top rod pressing plate 201 is fixedly connected with a traction plate 202, screw holes are formed in the outer wall sides of the top rod pressing plate 201, the top surface sides of the top rod pressing plate 201 are fixedly connected with extrusion rods 203, and the top surface middle portion of the top rod pressing plate 201 is fixedly connected with an abutting shaft 204; the insert needle main body 2 further comprises an insert needle top rod 205, the bottom end middle portion of the insert needle top rod 205 is provided with a limiting groove 206, the inner wall upper end of the limiting groove 206 is slidably connected with a push block 208, the top surface middle portion of the push block 208 is fixedly connected with a spring two 207, the top end of the spring two 207 is fixedly connected with the inner side top end of the limiting groove 206, as Figure 5 shown, at this time, the spring two 207 is in a compressed state;

[0027] Among them, the inner side of the limiting groove 206 and the two sides of the push block 208 are movably installed with balls 209, one side of each ball 209 abuts against the side edge of the push block 208, and each ball 209 extends to the surface of the insert needle top rod 205 on the side away from the push block 208, as Figure 5 shown, when the push block 208 descends, the lower end of the push block 208 pushes the two balls 209 on the sides to be ejected outward of the insert needle top rod 205;

[0028] The upper end of the push block 208 is cylindrical, the lower end of the push block 208 is frustum-shaped, and the diameter of the lower end of the push block 208 gradually decreases from top to bottom. The outer wall of the abutment shaft 204 is inserted into the lower end of the inner side of the limiting groove 206. The top of the abutment shaft 204 abuts against the bottom surface of the push block 208. The tops of the two extrusion rods 203 extend above the ball 209.

[0029] A threaded shaft 210 is fixedly connected to the center of the top of the pin-set pin 205. A push rod 211 is also installed on the top of the pin-set pin 205. A threaded groove 212 is formed in the center of the bottom of the push rod 211. The inside of the threaded groove 212 is threadedly connected to the threaded shaft 210. Several anti-slip patterns 213 are formed on the outer wall of the push rod 211. A pin-set end 214 is fixedly connected to the center of the top surface of the push rod 211. Figure 4 As shown, the anti-slip texture 213 makes the top rod 211 easy to turn;

[0030] The mold base plate 1 includes a plate body 101. A sliding groove 102 is formed on the inner wall of the plate body 101. A push ring 104 is slidably connected to the inner wall of the sliding groove 102. Springs 103 are fixedly connected to both sides of the top surface of the push ring 104. The top end of each spring 103 is fixedly connected to the inner side of the sliding groove 102. Figure 1 As shown, spring 103 is in a compressed state at this time;

[0031] The bottom surface of the plate 101 is movably installed with the top rod pressure plate 201. A screw 105 is threaded through the screw hole in the top rod pressure plate 201. The top of the screw 105 is threaded into the plate 101. The inner wall of the plate 101 is inserted into the extrusion rod 203. The bottom surface of the push ring 104 abuts against the extrusion rod 203. Figure 1 As shown, the push ring 104 has a hollow center, and the outer side of the pin-shaped top rod 205 passes through the center of the push ring.

[0032] The working principle of this utility model:

[0033] When disassembling the pin body 2, use a screwdriver to loosen and remove the screw 105. Then, use the traction plate 202 to separate the top bar pressure plate 201 from the plate body 101. During this process, the abutment 204 is pulled out from inside the pin top bar 205. The abutment 204 does not contact the push block 208. The second spring 207 pushes the push block 208 downward. The lower end of the push block pushes the balls 209 on both sides toward the outside of the pin top bar 205. The ends of the balls 209 extend to the outside of the pin top bar 205. In addition, the pressing rod 203 is pulled out from inside the plate body 101. The pressing rod 203 does not contact the push ring 104. The first spring 103 pushes the push ring 104 downward. The push ring 104 contacts the ends of the balls 209 on the outside of the pin top bar 205. Then, the push ring 104 pushes the balls 209 and moves the pin top bar 205 toward the outside of the plate body 101.

[0034] Afterwards, the operator can take out the pin top rod 205 and the pin end head 214 from the inside of the mold, twist the top rod 211, separate the threaded shaft 210 from the threaded groove 212, and then disassemble the pin end head 214.

[0035] The above has carried out the detailed description to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equivalent changes and improvements made in the utility model application scope should still belong to the patent coverage scope of the utility model.

Claims

1. A pin quick-change structure of an inverter housing die-casting mold, comprising a mold base plate (1), a pin body (2) is arranged above the mold base plate (1); characterized in that The pin body (2) comprises a ejector rod pressing plate (201), the bottom surface middle part of the ejector rod pressing plate (201) is fixedly connected with a traction plate (202), screw holes are formed in the outer wall sides of the ejector rod pressing plate (201), the top surface sides of the ejector rod pressing plate (201) are fixedly connected with extrusion rods (203), and the top surface middle part of the ejector rod pressing plate (201) is fixedly connected with an abutting shaft (204); The pin body (2) further comprises a pin ejector rod (205), a limiting groove (206) is formed in the bottom end middle part of the pin ejector rod (205), a push block (208) is slidably connected to the inner wall upper end of the limiting groove (206), a spring two (207) is fixedly connected to the top surface middle part of the push block (208), and the top end of the spring two (207) is fixedly connected to the inside top end of the limiting groove (206). Wherein, the inside of the limiting groove (206) and the sides of the push block (208) are movably installed with balls (209), one side of each ball (209) abuts against the side of the push block (208), and each ball (209) extends to the surface of the pin ejector rod (205) on the side away from the push block (208).

2. The insert quick change structure of an inverse converter housing die-casting mold according to claim 1, wherein, The upper end of the push block (208) is in a cylindrical shape, the lower end of the push block (208) is in a circular truncated cone shape, and the diameter of the push block (208) gradually decreases from top to bottom.

3. The insert quick change structure of an inverse converter housing die-casting mold according to claim 2, characterized in that, The outer wall of the abutting shaft (204) is inserted into the inside lower end of the limiting groove (206), the top of the abutting shaft (204) abuts against the bottom surface of the push block (208), and the top ends of the two extrusion rods (203) extend above the balls (209).

4. The insert quick change structure of an aluminum die casting mold for an inverter housing according to claim 3, wherein The top end middle part of the pin ejector rod (205) is fixedly connected with a threaded shaft (210), the top of the pin ejector rod (205) is further installed with a top rod (211), a threaded groove (212) is formed in the bottom middle part of the top rod (211), and the inside of the threaded groove (212) is threadedly connected with the threaded shaft (210).

5. The insert quick change structure of an aluminum die casting mold for an inverter housing according to claim 4, wherein The outer side wall of the top rod (211) is provided with a plurality of anti-skid lines (213), and the top surface middle part of the top rod (211) is fixedly connected with a pin end (214).

6. The insert quick change structure of an aluminum die casting mold for an inverter housing according to claim 1, wherein The mold base plate (1) comprises a plate body (101), a sliding groove (102) is formed in the inner wall of the plate body (101), a push ring (104) is slidably connected to the inner wall of the sliding groove (102), spring one (103) is fixedly connected to the top surface sides of the push ring (104), and the top end of each spring one (103) is fixedly connected to the inside of the sliding groove (102).

7. The insert quick change structure of an aluminum die casting mold for an inverter housing according to claim 6, wherein The bottom surface of the plate body (101) is movably installed with a top rod pressing plate (201), the top rod pressing plate (201) is connected with a screw (105) through the screw hole, the top end of the screw (105) is screwed with the plate body (101), the inner wall of the plate body (101) is inserted with an extruding rod (203), and the bottom surface of the push ring (104) abuts against the extruding rod (203).

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