Semicircular hole punching die for water pump motor trunking plug

Abstract

The utility model belongs to the technical field of die equipment, and particularly relates to a water pump motor trunking plug semicircular hole punching die. Comprising an upper die base, a lower die base, a punch and a positioning device, a male die fixing plate is installed on the lower surface of the upper die base, a female die fixing plate is installed on the upper surface of the lower die base, the punch is fixedly arranged on the male die fixing plate, the section of the punching portion of the punch is round, and a workpiece to be punched is arranged on the female die fixing plate. The positioning device comprises an adjusting rod and a positioning pin part, the adjusting rod is arranged in the first through hole, the positioning pin part is embedded in the female die fixing plate, the positioning pin part is arranged at the position where the forming hole horizontally rotates by 90 degrees, and the positioning pin part comprises a positioning pin and a first spring. The positioning pin is connected with the lower die base through a first spring, a second through hole is formed in the positioning pin, and the second through hole is matched with the adjusting rod. Punching is carried out in a stamping mode, and compared with a casting mode in the prior art, the punching mode is more environmentally friendly.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mould equipment technical field, concretely relates to a water pump motor wire slot plug half circle hole die. BACKGROUND

[0002] At present, the wire slot plug applied to the water pump motor generally adopts the casting mode to process, after the casting is completed, the three surfaces of the wire slot plug of the water pump motor still need to be machined to improve the assembly precision. From the environmental management point of view, the casting processing not only will bring environmental pollution, but also needs to consume more energy, matches more manpower, and simultaneously, the machining procedure is more and the process is complex, leading to that the processing efficiency cannot satisfy the production progress. CONTENT OF THE UTILITY MODEL

[0003] In view of this, the utility model aims at providing a water pump motor wire slot plug half circle hole die, aiming at overcoming the defects of environmental pollution caused by the current casting and the problem of production efficiency reduction caused by machining.

[0004] In order to achieve the above-mentioned utility model purposes, the utility model adopts the following technical scheme:

[0005] A water pump motor wire slot plug half circle hole die, including upper die seat and lower die seat, male die fixed plate is installed on the lower surface of upper die seat, female die fixed plate is installed on the upper surface of lower die seat, and the die still includes:

[0006] Punch, fixedly set on male die fixed plate, the punch hole part of the punch is circular in section;

[0007] The female die fixed plate is provided with a workpiece to be punched, and a forming hole is arranged at the corresponding position of the punch, so as to cooperate with the punch when the punch goes down, and a first through hole is formed in the female die fixed plate;

[0008] Positioning device, including adjusting rod and positioning pin part, the adjusting rod is arranged in the first through hole, the positioning pin part is nested on the female die fixed plate, the positioning pin part is arranged at the position of 90 degrees horizontal rotation of the forming hole, and the positioning pin part includes a positioning pin and a first spring, wherein the positioning pin is connected with the lower die seat through the first spring, a second through hole is formed in the positioning pin, and the second through hole cooperates with the adjusting rod.

[0009] Optionally, two arc-shaped notch sections are arranged on the adjusting rod, when the arc-shaped notch sections are located in the second through hole, the height of the positioning pin is higher than the top height of the female die fixed plate, and when the arc-shaped notch sections are located outside the second through hole, the height of the positioning pin is lower than the top height of the female die fixed plate.

[0010] Optionally, the punch is provided with two groups, and a limiting part is arranged between the two punches, the limiting part is used for limiting the downward movement of the punch, the positioning pin is matched with the outer contour of the limiting part, and the limiting part is provided with a third through hole allowing the adjusting rod to pass through.

[0011] Optionally, the lower portion of the upper die seat is further provided with an elastic ejection device, the elastic ejection device comprises a second spring, an ejection plate and an ejection screw, one end of the ejection screw is connected with the upper die seat, the other end is connected with the ejection plate, the second spring is sleeved on the periphery of the ejection screw, one end of the second spring is connected with the male die fixing plate, and the other end is connected with the ejection plate.

[0012] Optionally, the centers of the four semicircular holes punched by the punch are located on the outer contour line of the same circle.

[0013] Optionally, the diameter of the first through hole is greater than the width of the adjusting rod, and the diameter of the first through hole and the width of the adjusting rod differ by 1-2 mm.

[0014] Optionally, the mold further comprises a guide device, the guide device is arranged on both sides of the male die fixing plate and the female die fixing plate, each group of guide devices comprises a guide column and a guide sleeve, the guide column is arranged on one side of the female die fixing plate and connected with the upper surface of the lower die seat, and the guide sleeve is arranged outside the guide column and connected with the lower surface of the upper die seat at one end.

[0015] Optionally, a gasket is arranged between the upper die seat and the male die fixing plate.

[0016] The utility model discloses beneficial effect:

[0017] The utility model discloses the workpiece to be punched is placed on the female die fixing plate, the handle drives the upper die seat to move down to drive the punch to move down, and the contact part of the punch and the workpiece is the semicircular hole that needs to be punched when punching, after punching, the workpiece is rotated horizontally 90 DEG, when the arc notch section is located in the second through hole, the first spring rebounds because the arc notch section is thin, so that the positioning pin is higher than the height of the top of the workpiece, and is inserted into the two punched semicircular holes, guaranteeing that the centers of the four semicircular holes are located on the outer contour line of the same circle, compared with the existing plug processing mode through casting, the environmental pollution is reduced, and the punch pressing mode is more efficient and convenient, a workpiece can be completed only by pressing twice, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying the creative labor.

[0019] Figure 1 is a sectional view of the overall structure of the utility model;

[0020] Figure 2 is a left sectional view of the overall structure of the utility model;

[0021] Figure 3 is a top view of the utility model;

[0022] Figure 4 is a blank drawing of the workpiece of the utility model;

[0023] Figure 5 is a schematic view of the workpiece after stamping of the utility model. DETAILED DESCRIPTION

[0024] 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 of 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.

[0025] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] The scheme provided by the utility model will be described in detail below with reference to the drawings.

[0027] In the technical scheme, a water pump motor wire slot plug half circle hole die, as shown in Figures 1-5 includes an upper die seat 1, a lower die seat 2, a convex die fixing plate 3, a concave die fixing plate 4, a punch 5 and a positioning device 8. The die will workpiece 9 fromFigure 4 punched into the shape of Figure 5 .

[0028] As shown in Figures 1-2 , the punch fixed plate 3 is installed on the lower surface of the upper die seat 1, the gasket 11 is arranged between the upper die seat 1 and the punch fixed plate 3, the concave die plate 4 is installed on the upper surface of the lower die seat 2, and the punch 5 is fixedly arranged on the punch fixed plate 3. The cross section of the punching part of the punch 5 is circular, the cross section of the punching part corresponds to the position of the semicircular hole to be punched into the shape, the punch 5 is provided with two groups, and the two groups of punches 5 are symmetrically arranged on the two sides of the punch fixed plate 3. Among them, the centers of the four semicircular holes punched by the punch 5 are located on the same circular outline. The limiting part 7 is arranged between the two punches 5, the limiting part 7 is used for limiting the downward movement of the punch 5, avoiding the deviation of the punch 5 during the downward pressing process due to the large impact force, the workpiece 9 to be punched is arranged on the concave die plate 4, and the forming hole 201 is arranged at the corresponding position of the punch 5, which is used for cooperating with the punch 5 when the punch 5 moves downward, and the first through hole 401 is arranged on the concave die plate 4. When the punch 5 is pressed down, the punch 5 punches the semicircular hole of the workpiece 9 to be punched, and the material punched down falls into the forming hole 201.

[0029] Among them, the diameter of the first through hole is 1-2mm larger than the width of the adjusting rod.

[0030] As shown in Figures 2-3 , the positioning device 8 includes an adjusting rod 801 and a positioning pin part 802, the adjusting rod 801 is arranged in the first through hole 401, the diameter of the first through hole 401 is larger than the width of the adjusting rod 801, and the diameter of the first through hole 401 and the width of the adjusting rod 801 are different by 1-2mm. Two arc-shaped notch sections 803 are arranged on the adjusting rod 801, the positioning pin part 802 is nested on the concave die plate 4, the positioning pin part 802 is arranged at the position of the forming hole 201 horizontally rotating 90°, the positioning pin part 802 includes a positioning pin 8021 and a first spring 8022, wherein the positioning pin 8021 is connected with the lower die seat 2 through the first spring 8022, the second through hole 804 is arranged on the positioning pin 8021, the positioning pin 8021 is fitted with the outer contour of the limiting part 7, the limiting part 7 is provided with the third through hole 701, the second through hole 804 and the third through hole 701 are matched with the adjusting rod 801, when the arc-shaped notch section 803 is located in the second through hole 804, the height of the positioning pin 8021 is higher than the top height of the concave die plate 3, and when the arc-shaped notch section 803 is located outside the second through hole 804, the height of the positioning pin 8021 is lower than the top height of the concave die plate 3.

[0031] In the technical solution, the upper die seat 1 is further provided with an elastic ejection device 6 for ejecting the workpiece 9, the elastic ejection device 6 comprises a second spring 601, an ejection plate 603 and an ejection screw 602, one end of the ejection screw 602 is connected with the upper die seat 1, the other end is connected with the ejection plate 603, the second spring 601 is sleeved on the outer periphery of the ejection screw 602, one end of the second spring 601 is connected with the punch fixed plate 3, and the other end is connected with the ejection plate 603.

[0032] When the punching part is pressed down, the ejection plate 603 can play a role of limiting the upper part of the workpiece, so as to avoid the workpiece from deviating during the blanking. The second spring 601 is a rigid spring, which can avoid the deviation of the ejection plate 603 when limiting, and ensure that the workpiece 9 after punching can be smoothly taken out from the concave die fixed plate 4.

[0033] In the technical solution, the mold is further provided with a guide device 10, the guide device 10 is arranged on both sides of the punch fixed plate 3 and the concave die fixed plate 4, each set of guide device 10 comprises a guide column 1001 and a guide sleeve 1002, the guide column 1001 is arranged on one side of the concave die fixed plate 4, and the guide column 1001 is connected with the upper surface of the lower die seat 2; the guide sleeve 1002 is arranged outside the guide column 1001, and one end of the guide sleeve 1002 is connected with the lower surface of the upper die seat 1.

[0034] Based on the above embodiment, the guide column 1001 and the guide sleeve 1002 play a guiding role during the up-down movement of the punch fixed plate 3.

[0035] The working principle of the utility model is: the die punching is divided into two times of punching, when the first time of punching, the arc notch section 803 is located outside the second through hole 804, at this moment the other part of the adjusting rod 801 is placed in the first through hole 401, because the diameter of the second through hole 804 and the adjusting rod 801 is same, thereby make the first spring 8022 compression, make the positioning pin 8021 height lower than the top height of the concave die fixed plate 4, place the workpiece 9 to be punched on the concave die fixed plate 4, at this moment the die handle drives the upper die seat 1 to move downwards, thereby drives the punch 5 to move downwards, the contact part of the punch 5 and the workpiece 9 when punching is the semicircular hole that needs to be punched, after punching, the die handle drives the upper die seat 1 and the punch to move upwards, at this moment take the workpiece 9, move the adjusting rod 801, make the arc notch section 803 be located in the positioning hole, at this moment because the arc notch section 803 is thin, the second spring 601 rebounds, thereby make the positioning pin 8021 height higher than the top height of the concave die fixed plate 4, at this moment place the workpiece that just punched two semicircular holes on the concave die fixed plate 4, the positioning pin 8021 is inserted in the two punched semicircular holes correspondingly, then make the die handle drive the upper die seat 1 and the punch 5 to press down again, guarantee the center of four semicircular holes on the same circle's outer contour line, and punch the semicircular hole more efficient and convenient through the punching mode.After punching, the upper die seat 1 is lifted through the die handle, the upper die seat 1 drives the convex die fixed plate 3 to move upwards, at this moment the workpiece is taken out from the convex die fixed plate 3 through the stripper plate 603.

[0036] The above is only the embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent process transformation using the content of the application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the application.

Claims

1. A die for punching a semi-circular hole in a water pump motor wire groove plug, comprising an upper die base and a lower die base, wherein a punch fixing plate is mounted on the lower surface of the upper die base, and a die fixing plate is mounted on the upper surface of the lower die base, characterized in that, The mold also includes: The punch is fixedly mounted on the punch fixing plate, and the cross-section of the punching part of the punch is circular; The die fixing plate is provided with the workpiece to be punched, and a forming hole is provided at the position corresponding to the punch, which is used to cooperate with the punch when the punch moves down. At the same time, a first through hole is provided on the die fixing plate. The positioning device includes an adjusting rod and a positioning pin. The adjusting rod is disposed in a first through hole, and the positioning pin is nested in a die fixing plate. The positioning pin is located at a position where the forming hole is rotated 90° horizontally. The positioning pin includes a positioning pin and a first spring. The positioning pin is connected to the lower die base through the first spring. A second through hole is provided on the positioning pin, and the second through hole cooperates with the adjusting rod.

2. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 1, characterized in that, The adjusting rod has two arc-shaped notches. When the arc-shaped notches are inside the second through hole, the height of the locating pin is higher than the top height of the die fixing plate. When the arc-shaped notches are outside the second through hole, the height of the locating pin is lower than the top height of the die fixing plate.

3. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 1, characterized in that, The punch is provided in two sets, and a limiting part is provided between the two punches. The limiting part is used to limit the downward movement of the punch. The positioning pin fits with the outer contour of the limiting part, and the limiting part has a third through hole that allows the adjusting rod to pass through.

4. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 1, characterized in that, Below the upper mold base, there is also an elastic unloading device. The elastic unloading device includes a second spring, an unloading plate and an unloading screw. One end of the unloading screw is connected to the upper mold base and the other end is connected to the unloading plate. The second spring is sleeved around the unloading screw. One end of the second spring is connected to the punch fixing plate and the other end is connected to the unloading plate.

5. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 1, characterized in that, The centers of the four semi-circular holes formed by the punch are located on the outer contour line of the same circle.

6. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 1, characterized in that, The diameter of the first through hole is larger than the width of the adjusting rod, and the diameter of the first through hole differs from the width of the adjusting rod by 1-2 mm.

7. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 1, characterized in that, The mold also includes a guiding device, which is set on both sides of the punch fixing plate and the die fixing plate. Each set of the guiding device includes a guide post and a guide sleeve. The guide post is set on one side of the die fixing plate and is connected to the upper surface of the lower mold base. The guide sleeve is set outside the guide post and one end of the guide sleeve is connected to the lower surface of the upper mold base.

8. The mold for punching semi-circular holes in the plug of the water pump motor wire groove according to claim 5, characterized in that, A pad is provided between the upper mold base and the punch fixing plate.

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