Check ring production die

Abstract

The utility model discloses a retainer ring production die, which comprises a rolling die and a cutting die, the rolling die comprises a rolling die core and a rolling guide die, the axis of the rolling die core is provided with a discharge channel, one end of the rolling guide die is provided with an arc-shaped guide groove, and the arc-shaped guide groove is located in front of the discharge channel and corresponds to the discharge channel. The upper side of the rolling mold core is cut into an inclined plane, and the cutting mold is arranged on one side of the bottom of the inclined plane; the cutting die comprises an upper cutting die and a lower cutting die, the upper plane and the bottom lower than the inclined plane of the lower cutting die are higher than the discharging channel, and the upper cutting die is located over the lower cutting die and can move up and down in a reciprocating mode; through cooperation of the rolling die and the cutting die, the check ring body is rolled and formed firstly and then cut through the cutting die to form the notch, manufacturing of the check ring is completed, and the problem that a small-size check ring manufactured through an existing stamping integrated forming production mode is prone to deformation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping, in particular to a retaining ring production die. Background Art

[0002] Retaining rings are often used on the ends of shafts or sleeves, and a notch is provided on the end of the retaining ring to facilitate the removal of the retaining ring. The position of the notch on the end of the retaining ring is different depending on the place of use. In the past, retaining rings were produced by integral stamping through a stamping die. There was no problem with stamping large-sized retaining rings, but for small-sized retaining rings, due to the small inner and outer diameters of the retaining rings and their relative thinness, integral stamping easily causes deformation of the retaining rings, resulting in a low yield rate. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a retaining ring production mold. By coordinating the rolling mold and the cutting mold, the retaining ring production method is changed to solve the problems of easy deformation and low yield during the integrated stamping production of small-sized retaining rings.

[0004] In order to solve the above technical problems, the utility model provides a technical solution: a retaining ring production mold, including a rolling mold and a cutting mold, characterized in that: the rolling mold includes a rolling mold core and a rolling guide mold, a discharge channel is provided at the axis of the rolling mold core, an arc-shaped guide groove is provided at one end of the rolling guide mold, and the arc-shaped guide groove is located in front of and corresponds to the discharge channel, the upper side of the rolling mold core is cut into an inclined surface, and the cutting mold is arranged on the bottom side of the inclined surface;

[0005] The cutting mold includes a cutting upper mold and a cutting lower mold. The upper plane of the cutting lower mold and the bottom below the inclined surface are higher than the discharge channel. The cutting upper mold is located directly above the cutting lower mold and can move reciprocatingly up and down.

[0006] The cutting upper die includes a base, a pressure plate, a mold core and a guide device, the pressure plate is connected to the base through a guide mechanism, a spring is provided on the guide mechanism between the pressure plate and the base, so that the pressure plate is always pushed away from the base when it moves axially along the guide mechanism, a through hole is provided on the pressure plate, one end of the mold core is connected to the base, and the other end of the mold core extends into the through hole, and when the pressure plate moves toward the base, the other end of the mold core extends out of the through hole and penetrates the pressure plate;

[0007] The cutting lower die is provided with a die hole and a countersink, the die hole is clearance-matched with the die core, the countersink is matched with the guide mechanism, the die hole passes through the cutting lower die and is connected with the discharge hole provided on the cutting lower die.

[0008] Furthermore, a lap plate is provided between the cutting lower die and the bottom of the inclined surface.

[0009] Furthermore, the guide mechanism includes a guide column and a limiting screw, one end of the guide column is connected to the base, the other end of the guide column passes through the pressure plate, and the threaded end of the limiting screw passes through the pressure plate and is screwed to the base.

[0010] Furthermore, a fastening nut is provided at the threaded end of the limiting screw.

[0011] Furthermore, one end of the mold core extends into a fixing hole on the base and is fastened by a mold core fixing bolt.

[0012] Furthermore, the die hole is detachably embedded in the mounting hole on the cutting lower die through a mounting block and is fastened by a die hole fixing bolt, and the upper plane of the mounting block is higher than the upper plane of the cutting lower die.

[0013] Furthermore, the discharge hole is arranged obliquely on the cutting lower die.

[0014] The beneficial effects of the utility model are:

[0015] 1. This application uses the cooperation between the rolling mold and the cutting mold to first roll the retaining ring body into shape and then cut it through the cutting mold to form a notch to complete the production of the retaining ring, thereby solving the problem that small-sized retaining rings are easily deformed when produced by the existing stamping one-piece molding production method.

[0016] 2. In this application, when the wire moves from the feed channel to the rolling guide die, it moves toward the lower die and the inclined surface under the guidance of the arc guide groove and is rolled into the retaining ring body. The upper die moves downward so that the pressure plate presses the retaining ring body on the lower die, and then the upper die continues to move downward. Under the action of the die core and the die hole, the retaining ring body is cut to complete the production of the retaining ring. The spring keeps the pressure plate pressed on the retaining ring body to prevent the retaining ring body from moving during cutting, thereby ensuring the quality of the retaining ring.

[0017] 3. In the present application, the guide column and the limit screw form a guiding mechanism, and the distance between the pressure plate and the base can be adjusted by the limit screw so that the end of the mold core is in the through hole to protect the mold core. The spring is sleeved on the guide column, and the guide column and the limit screw together play a guiding role in the reciprocating movement of the pressure plate, and the guide column is always in a state of extending out of the pressure plate and extending into the countersunk hole, guiding the up and down movement of the upper mold; the shape of the through hole on the pressure plate is matched with the shape of the mold core to guide and limit the mold core, stabilize the mold core, and ensure the cutting quality; the threaded end of the limit screw is provided with a fastening nut, which plays a double nut reinforcement role, solving the problem of single nut easy loosening during use.

[0018] 4. The setting of the lap plate in this application connects the cutting lower die and the inclined surface, so that the bent wire can pass through the inclined surface under the guidance of the lap plate, forming a slight up and down misalignment to avoid interference with the discharge channel.

[0019] 5. In this application, the mold core is detachably connected to the base through the mold core fixing bolts, and the mold hole is detachably connected to the cutting lower mold through the mold hole fixing bolts, which is convenient for replacing different mold cores according to different sizes of retaining rings and has a wide range of adaptability.

[0020] 6. In this application, the discharge hole is set obliquely on the cutting lower die, so that the cut waste can be directly discharged through the discharge hole in a direction, with a simple structure and easy use.

[0021] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only eight of the drawings in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the structure of this application.

[0024] Figure 2 It is a structural diagram of the cutting upper die.

[0025] Figure 3 This is the assembly diagram of the cutting upper mold.

[0026] Figure 4 It is a structural diagram of the cutting lower die.

[0027] Figure 5 This is the assembly diagram of the cutting lower die.

[0028] Figure 6 This is a schematic diagram of the structure when the wire passes through the arc guide groove.

[0029] Figure 7 This is a schematic diagram of the structure used in this application.

[0030] Figure 8 Schematic diagram of the structure of the retaining ring.

[0031] In the figure, 1- rolling mold core, 2- rolling guide mold, 3- discharge channel, 4- arc guide groove, 5- inclined surface, 6- lap plate, 7- cutting upper mold, 8- cutting lower mold;

[0032] 71-base, 72-pressing plate, 73-mold core, 74-spring, 75-through hole, 76-guide column, 77-limiting screw, 78-fastening nut, 79-mold core fixing bolt;

[0033] 81-die hole, 82-sink hole, 83-discharge hole, 84-mounting block, 85-mounting hole, 86-die hole fixing bolt;

[0034] A-wire, B-retaining ring, C-notch, D-spring coiling machine. DETAILED DESCRIPTION

[0035] The following describes embodiments of the present invention in detail with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0036] It should be understood that the steps described in the method embodiments of the present invention may be performed in a different order. Furthermore, the method embodiments may include additional steps or omit the steps shown. The scope of the present invention is not limited in this respect.

[0037] The names of the messages or information exchanged between multiple devices in the embodiments of the present invention are only used for illustrative purposes and are not used to limit the scope of these messages or information. Example 1

[0038] like Figure 1-8 As shown, a retaining ring production mold includes a rolling mold and a cutting mold. The rolling mold includes a rolling mold core 1 and a rolling guide mold 2. A discharge channel 3 is provided at the axis of the rolling mold core 1. An arc guide groove 4 is provided at one end of the rolling guide mold 2. The arc guide groove 4 is in front of and corresponds to the discharge channel 3. The wire A removed from the discharge channel 3 is convenient for bending and moving toward the lower mold and the inclined surface 5 under the guidance of the arc guide groove 4 and rolled into a retaining ring B body; the upper side of the rolling mold core 1 is cut into an inclined surface 5, and the cutting mold is arranged on the bottom side of the inclined surface 5, so that the wound retaining ring The main body of the ring B and the discharge channel 3 are offset up and down to prevent obstruction and interference; the cutting mold includes a cutting upper mold 7 and a cutting lower mold 7. The upper plane of the cutting lower mold 7 is lower than the bottom of the inclined surface 5 and higher than the discharge channel 3. The cutting upper mold 7 is located directly above the cutting lower mold 7 and can move back and forth up and down; through the cooperation between the rolling mold and the cutting mold, the main body of the retaining ring B is first rolled into shape and then cut through the cutting mold to form a notch C to complete the production of the retaining ring B. The production is step-by-step, which solves the problem that small-sized retaining rings B are easily deformed in the existing stamping one-piece molding production method.

[0039] The cutting upper mold 7 includes a base 71, a pressure plate 72, a mold core 73 and a guide device. The pressure plate 72 is connected to the base 71 through a guide mechanism. A spring 74 is provided on the guide mechanism between the pressure plate 72 and the base 71, so that the pressure plate 72 is always pushed away from the base 71 when it moves axially along the guide mechanism. A through hole 75 is provided on the pressure plate 72. One end of the mold core 73 is connected to the base 71, and the other end of the mold core 73 extends into the through hole 75. When the pressure plate 72 moves toward the base 71, the other end of the mold core 73 extends out of the through hole 75 and penetrates the pressure plate 72; the distance between the pressure plate 72 and the base 71 can be adjusted by the limit screw 77 so that the mold The end of the core 73 is in the through hole 75 to protect the mold core 73. The spring 74 is sleeved on the guide column 76. The guide column 76 and the limit screw 77 together guide the reciprocating movement of the pressure plate 72, and the guide column 76 is always in a state of extending out of the pressure plate 72 and extending into the countersunk hole 82, guiding the up and down movement of the upper mold; the shape of the through hole 75 on the pressure plate 72 matches the shape of the mold core 73, guiding and limiting the mold core 73, stabilizing the mold core 73, and ensuring the cutting quality; the threaded end of the limit screw 77 is provided with a fastening nut 78, which plays a double nut reinforcement role, solving the problem of a single nut easily loosening during use.

[0040] The cutting lower die 7 is provided with a die hole 81 and a countersunk hole 82. The die hole 81 is clearance-matched with the die core 73, which facilitates the die core 73 to extend into the die hole 81 for cutting and punching the notch C. The countersunk hole 82 cooperates with the guide mechanism to facilitate the guide column 76 and the limit screw 77 to extend into the countersunk hole 82 for guiding. The die hole 81 passes through the cutting lower die 7 and is connected with the discharge hole 83 provided on the cutting lower die 7, and the discharge hole 83 is inclined on the cutting lower die 7; the cut waste is directly discharged through the discharge hole 83 in a direction, and the structure is simple and easy to use.

[0041] Among them, the guiding mechanism includes a guide column 76 and a limiting screw 77. One end of the guide column 76 is connected to the base 71, and the other end of the guide column 76 passes through the pressure plate 72. The threaded end of the limiting screw 77 passes through the pressure plate 72 and is screwed to the base 71. Example 2

[0042] like Figure 1-3 As shown, this embodiment is obtained by adding technical features such as a fastening nut 78 and a lap plate 6 on the basis of Example 1. The remaining technical features are the same as those of Example 1, and the similarities are not repeated here. Among them, the difference between this embodiment and Example 1 is that: a fastening nut 78 is provided at the threaded end of the limiting screw 77; and a lap plate 6 is provided between the cutting lower mold 7 and the bottom of the inclined surface 5.

[0043] In this embodiment, a fastening nut 78 is provided at the threaded end of the limiting screw 77, which plays a double nut reinforcement role and solves the problem that the single nut is easy to loosen during use; the setting of the lap plate 6 connects the cutting lower mold 7 and the inclined surface 5, so that the bent wire A passes through the inclined surface 5 under the guidance of the lap plate 6, forming a slight up and down misalignment to avoid interference with the discharge channel 3. Example 3

[0044] like Figure 2-6 As shown, this embodiment is obtained by adding technical features such as the mold core 73 fixing bolts and the mounting block 84 on the basis of the embodiment 2. The remaining technical features are the same as those of the embodiment 2, and the similarities are not repeated here. Among them, the difference between this embodiment and the embodiment 2 is that: one end of the mold core 73 extends into the fixing hole on the base 71 and is fastened by the mold core fixing bolt 79; the mold hole 81 is detachably embedded in the mounting hole 85 on the cutting lower mold 7 through the mounting block 84, and is fastened by the mold hole fixing bolt 86, and the upper plane of the mounting block 84 is higher than the upper plane of the cutting lower mold 7.

[0045] In this embodiment, the mold core 73 is detachably connected to the base 71 via the mold core fixing bolts 79, and the mold hole 81 is detachably connected to the cutting lower mold 7 via the mold hole fixing bolts 86, which facilitates the replacement of different mold cores 73 according to different sizes of retaining rings B, and has a wide range of adaptability.

[0046] The use process of the technical solution formed by the above embodiments is as follows: the winding mold core 1 and the winding guide mold 2 are arranged on the spring winding machine D, and the wire A moves from the feed channel to the winding guide mold 2 under the action of the spring winding machine D. The wire A is bent and moved toward the lower mold and the inclined surface 5 under the guidance of the arc guide groove 4 and rolled into the retaining ring B body. Then, under the action of the spring winding machine D, the cutting upper mold 7 moves downward, and the pressure plate 72 presses the retaining ring B body onto the mounting block 84, and then the cutting upper mold 7 continues to move downward. Under the action of the mold core 73 and the mold hole 81, the retaining ring B body is cut and the notch C is cut, and the waste is discharged from the discharge hole 83. The cutting upper mold 7 is reset upward to complete the production of the retaining ring B.

[0047] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are readily apparent to those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the appended claims.

Claims

1. A retaining ring production mold, including a rolling mold and a cutting mold, characterized by: The rolling mold includes a rolling mold core and a rolling guide mold. A discharge channel is provided at the axis of the rolling mold core. An arc guide groove is provided at one end of the rolling guide mold, and the arc guide groove is located in front of and corresponds to the discharge channel. The upper side of the rolling mold core is cut into an inclined surface, and the cutting mold is provided on the bottom side of the inclined surface. The cutting mold includes a cutting upper mold and a cutting lower mold. The upper plane of the cutting lower mold and the bottom below the inclined surface are higher than the discharge channel. The cutting upper mold is located directly above the cutting lower mold and can move reciprocatingly up and down. The cutting upper die includes a base, a pressure plate, a mold core and a guide device, the pressure plate is connected to the base through a guide mechanism, a spring is provided on the guide mechanism between the pressure plate and the base, so that the pressure plate is always pushed away from the base when it moves axially along the guide mechanism, a through hole is provided on the pressure plate, one end of the mold core is connected to the base, and the other end of the mold core extends into the through hole, and when the pressure plate moves toward the base, the other end of the mold core extends out of the through hole and penetrates the pressure plate; The cutting lower die is provided with a die hole and a countersink, the die hole is clearance-matched with the die core, the countersink is matched with the guide mechanism, the die hole passes through the cutting lower die and is connected with the discharge hole provided on the cutting lower die.

2. A retaining ring production mold according to claim 1, characterized in that: A lap plate is provided between the cutting lower die and the bottom of the inclined surface.

3. The retaining ring production mold according to claim 1, characterized in that: The guide mechanism includes a guide column and a limiting screw, one end of the guide column is connected to the base, the other end of the guide column passes through the pressure plate, and the threaded end of the limiting screw passes through the pressure plate and is screwed to the base.

4. A retaining ring production mold according to claim 3, characterized in that: The threaded end of the limiting screw is provided with a fastening nut.

5. The retaining ring production mold according to claim 1, characterized in that: One end of the mold core extends into the fixing hole on the base and is fastened by a mold core fixing bolt.

6. A retaining ring production mold according to claim 1, characterized in that: The die hole is detachably embedded in the mounting hole on the cutting lower die through a mounting block and is fastened by a die hole fixing bolt, and the upper plane of the mounting block is higher than the upper plane of the cutting lower die.

7. A retaining ring production mold according to claim 1, characterized in that: The discharge hole is arranged obliquely on the cutting lower die.

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