A stamping die for a triple retaining ring of a cylinder

Abstract

The present application relates to the technical field of mold equipment, and discloses a stamping mold for a triple cylinder retainer, which includes a fixed mold base and a movable mold base that cooperate with each other, the movable mold base is located above the fixed mold base, and the fixed mold base and the movable mold base are provided with a punching mold group corresponding to the contour of the triple retainer, and a flanging mold group corresponding to the flanging of the triple retainer, the flanging mold group includes a positioning punch vertically slidably arranged on the movable mold base and a flanging punch coaxially arranged on one side of the inner ring of the positioning punch, the flanging punch is fixedly arranged on the movable mold base, and a lifting slide groove is opened on the movable mold base, the positioning punch is slidably arranged in the lifting slide groove, and an elastic support member is arranged in the lifting slide groove corresponding to the lifting of the positioning punch. The present application has the effect of improving the production efficiency of preparing triple retainers.

Description

Technical Field

[0001] The present application relates to the technical field of mold equipment, and in particular to a stamping mold for a triple retaining ring of a cylinder. Background Art

[0002] The triple retainer is a device used to protect the cylinder. Its main functions include preventing axial movement of the cylinder, expanding the oil discharge space and oil discharge passage, and ensuring the strength of the inner ring liner.

[0003] Specifically, the triple retainer can prevent the cylinder from excessive movement in the axial direction, thereby protecting the cylinder from damage. At the same time, it can also increase the oil drainage space and oil drainage passage, help the air oil, etc. to align with the inner ring rolling surface, and improve the performance of the bearing. Finally, the use of the triple retainer can also ensure the strength of the inner ring liner and prevent the inner ring liner from cracking or damage during use.

[0004] Reference Figure 1 The triple guard ring is made of soft stainless steel or soft stainless iron with a thickness of 0.2 to 0.25 mm, and the inner rings of the three center holes of the triple guard ring are all provided with flanges on one side.

[0005] In the prior art, the manufacturing process of the triple retainer is to first cut the sheet material of the triple retainer by a shearing machine, then use a punching and blanking compound die to punch out the plane shape of the triple retainer on the strip, and finally use a flanging stamping die to flanging the inner ring of the plane triple retainer to obtain the final triple retainer product. The processing process is completed by multiple stamping and changing the mold, which not only increases the production cost, but also reduces the production efficiency. Utility Model Content

[0006] In order to improve the production efficiency of preparing triple retaining rings, the present application provides a stamping die for a triple retaining ring of a cylinder.

[0007] The present application provides a stamping die for a triple cylinder retainer ring, which adopts the following technical solution:

[0008] A stamping die for a triple retaining ring of a cylinder, comprising a fixed die seat and a movable die seat that cooperate with each other, the movable die seat being located above the fixed die seat, and the fixed die seat and the movable die seat are provided with a punching die set corresponding to the contour of the triple retaining ring, and a flanging die set corresponding to the flanging of the triple retaining ring, the flanging die set comprising a positioning punch vertically slidably arranged on the movable die seat and a flanging punch coaxially arranged on one side of an inner ring of the positioning punch, the flanging punch is fixedly arranged on the movable die seat, a lifting slide groove is provided on the movable die seat, the positioning punch is slidably arranged in the lifting slide groove, and an elastic support member is arranged in the lifting slide groove corresponding to the lifting of the positioning punch.

[0009] By adopting the above technical solution, when making a triple guard ring, first place the sheet material on the fixed die seat, and then drive the movable die seat to press down as a whole, press the column sheet material, and at the same time, the punching die group cuts the sheet material into the outline of the triple guard ring; the movable die seat continues to press down, and the fixed die seat is supported by the positioning punch, and when it cannot continue to press down, the elastic support member on the top of the positioning punch reaches the maximum deformation, and the flanging punch presses the edge of the inner ring of the semi-finished guard ring with the initial cut contour against the inner side wall of the positioning punch to form a flanging. The movable die seat is driven to rise as a whole, and the elastic support member restores the deformation and drives the positioning punch to reset. The triple guard ring can be manually taken out, and the remaining sheet material on the fixed die seat is cleared away, completing the stamping of the triple guard ring. This stamping die can not only reduce the process flow, but also improve the concentricity and quality of the product, greatly improving work efficiency.

[0010] Optionally, the elastic support member is a first compression spring abutting between the top wall of the lifting slide and the top wall of the positioning punch, a limit block is arranged on the top wall of the positioning punch, and a block is arranged near the opening of the lifting slide to limit the limit block from detaching from the lifting slide, and when the first compression spring is in a natural state, the limit block abuts against the block.

[0011] By adopting the above technical solution, after the movable die seat presses the sheet material strip, when it continues to press down to punch and shear the contour of the triple guard ring, the elastic pressure of the positioning punch and the first compression spring reduces the possibility of the sheet material strip being offset during the cutting process. At the same time, the restriction of the stop block on the limit block improves the stability of the movable die seat during operation and reduces the possibility of the positioning punch falling off from the movable die seat.

[0012] Optionally, a central prefabricated die hole is opened on the movable die seat at the central hole of the triple guard ring, a central prefabricated hole punch is provided on the fixed die seat corresponding to the central prefabricated die hole, the flanging punch is located on the side close to the central prefabricated die hole, the bottom end of the flanging punch is arranged in an arc surface toward the side of the positioning punch, a support ring sleeve is provided on the fixed die seat corresponding to the flanging punch, a guide groove is vertically arranged on the fixed die seat, the support ring sleeve is located in the guide groove, and an elastic supporting member for supporting the support ring sleeve is provided in the guide groove.

[0013] By adopting the above technical scheme, when the movable die seat is pressed down, the center prefabricated hole die cooperates with the center prefabricated hole punch to punch out the center prefabricated hole on the sheet material strip; when the movable die seat is pressed down to cut the contour of the triple guard ring, it continues to press down. At this time, the arc surface of the flanging punch is elastically supported by the elastic top support member during the downward movement, thereby pushing the support ring sleeve to move downward synchronously. At the same time, the inner ring of the semi-finished product is continuously bent until it is pressed against the inner side wall of the outer contour punch to form a flanging; when the pressing is completed, the movable die seat moves up, and the support ring sleeve is elastically reset by the elastic top support member below, so that the triple guard ring, that is, the supported ring sleeve, can be pushed out of the fixed die seat, which is convenient for manual quick removal of the finished product of the triple guard ring.

[0014] Optionally, a fixing plate is provided at the bottom of the fixed mold base, and a plurality of vertical holes are opened on the fixing plate along the circumference of the support ring sleeve, and the plurality of vertical holes are connected to the guide groove, and the elastic supporting member includes a supporting rod sliding vertically in the vertical hole and a second compression spring arranged in the vertical hole for supporting the supporting rod, and the top of each support rod extends into the guide groove and abuts against the bottom wall of the support ring sleeve.

[0015] By adopting the above technical solution, a plurality of support rods and a matching second compression spring are used to synchronously provide elastic support for the support ring sleeve, which can reduce the possibility of the support ring sleeve getting stuck in the ring groove and improve the stability of the mold during use.

[0016] Optionally, the punching die group includes an outer contour punching die, which is located on the side of the positioning punch away from the flanging punch and is fixedly arranged on the movable die seat, and a support plate for unloading is provided on the fixed die seat corresponding to the lifting of the outer contour punching die, and a plurality of elastic parts for supporting the support plate are arranged on the fixed die seat.

[0017] By adopting the above technical solution, when the outer contour punching die punches and cuts out the outer contour of the triple guard ring in the sheet material, the elastic support of the support plate provides a stabilizing effect for the die, and helps to protect the sheet material to maintain its integrity after cutting, making it easier for the staff to continue cutting the remaining sheet material.

[0018] Optionally, a plurality of connecting guide rods are vertically arranged on the fixed mold seat along the periphery of the support plate, and a through hole is vertically opened on the support plate corresponding to each connecting guide rod, and the connecting guide rod slides through the corresponding through hole, and the elastic member is a third compression spring, and the third compression spring is sleeved with one corresponding to each connecting guide rod and abuts between the fixed mold seat and the support plate.

[0019] By adopting the above technical solution, the arrangement of a plurality of guide rods provides a guiding and limiting function for the sliding of the support plate, so that the support plate can maintain the stability of the mold during the unloading process.

[0020] Optionally, a plurality of vertically arranged guide holes are opened on the bottom wall of the movable mold base, and a guide column is vertically arranged corresponding to each guide hole on the fixed mold base, and a single guide column is inserted into the guide hole and slidably cooperates with the guide hole.

[0021] By adopting the above technical solution, the sliding fit between the guide column and the guide hole not only facilitates the installation of the mold, but also provides a stable effect for the mold closing and mold separation operations, thereby improving the working efficiency of the mold.

[0022] Optionally, each of the guide posts is provided with a plurality of annular grooves along the axial direction.

[0023] By adopting the above technical solution, since the mold will scrape off the lubricating oil on the guide column after working for a long time, a number of annular grooves are set on the guide column, which can prolong the residence time of the lubricating oil on the guide column, reduce the friction generated when sliding between the guide columns, and improve the service life of the mold.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When making a triple guard ring, first place the sheet material on the fixed die seat, and then drive the movable die seat to press down as a whole to fix the sheet material. At the same time, the punching die set cuts the sheet material into the outline of the triple guard ring; the movable die seat continues to press down, and the fixed die seat is supported by the positioning punch and cannot continue to press down. At this time, the elastic support part on the top of the positioning punch reaches the maximum deformation value, and the flanging punch presses the edge of the inner ring of the semi-finished guard ring with the initial cut contour against the inner wall of the positioning punch to form a flanging. The movable die seat is driven to rise as a whole, and the elastic support part restores its deformation and drives the positioning punch to reset. The triple guard ring can be manually removed, and the remaining sheet material on the fixed die seat is cleared away to complete the stamping of the triple guard ring. This stamping die can not only reduce the process flow, but also improve the concentricity and quality of the product, greatly improving work efficiency;

[0026] 2. After the movable die seat presses the sheet material, when it continues to press down to punch and shear the contour of the triple retaining ring, the elastic pressure of the positioning punch and the first compression spring reduces the possibility of the sheet material being offset during the cutting process. At the same time, the restriction of the stopper on the limit block improves the stability of the movable die seat during operation and reduces the possibility of the positioning punch falling off from the movable die seat.

[0027] 3. When the movable die seat is pressed down, the center prefabricated hole die cooperates with the center prefabricated hole punch to punch out the center prefabricated hole on the sheet material; when the movable die seat has pressed down to cut the contour of the triple guard ring, it continues to press down. At this time, the arc surface of the flanging punch is elastically supported by the elastic top support member during the downward movement, thereby pushing the support ring sleeve to move downward synchronously. At the same time, the inner ring of the semi-finished product is continuously bent until it is pressed against the inner side wall of the outer contour punch to form a flanging; when the pressing is completed, the movable die seat moves up, and the support ring sleeve is elastically reset by the elastic top support member below, so that the triple guard ring, that is, the supported ring sleeve, can be pushed out of the fixed die seat, which is convenient for manual quick removal of the finished product of the triple guard ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of a triple retaining ring.

[0029] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 3 It is a top view of an embodiment of the present application.

[0031] Figure 4 yes Figure 3 Schematic diagram of the cross section at AA in the middle.

[0032] Figure 5 yes Figure 3 Schematic diagram of the cross section at BB in the middle.

[0033] Description of reference numerals:

[0034] 01. Triple guard ring; 011. Flanging; 1. Fixed die seat; 11. Connecting guide rod; 12. Guide groove; 13. Support ring sleeve; 14. Fixed plate; 141. Lower pad; 142. Vertical hole; 143. Blocking plate; 2. Moving die seat; 21. Guide hole; 22. Center prefabricated die hole; 23. Lifting slide; 231. Stopper; 3. Guide column; 31. Ring groove; 4. Punching die set; 41. Center prefabricated hole punch; 42. Outer contour punching die; 5. Flanging die set; 51. Positioning punch; 511. Limit block; 52. Flanging punch; 6. Support plate; 61. Through hole; 7. Elastic member; 71. Third compression spring; 8. Elastic support member; 81. First compression spring; 9. Elastic top support member; 91. Support rod; 92. Second compression spring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 2-5 This application is described in further detail.

[0036] The embodiment of the present application discloses a stamping die for a triple retaining ring of a cylinder.

[0037] Reference Figures 2 to 5A stamping die for a triple cylinder retainer includes a fixed die seat 1 and a movable die seat 2. The movable die seat 2 is located above the fixed die seat 1. A plurality of vertically arranged guide holes 21 are provided on the bottom wall of the movable die seat 2. A guide column 3 is vertically fixedly provided corresponding to each guide hole 21 on the fixed die seat 1. A plurality of annular grooves 31 are axially provided on each guide column 3. The guide column 3 is inserted into the guide hole 21 and slidably cooperates with the corresponding guide hole 21. A punching die set 4 and a flanging die set 5 are provided on the fixed die seat 1 and the movable die seat 2.

[0038] Reference Figures 2 to 5 , place the sheet material on the fixed die seat 1, and then drive the movable die seat 2 to be pressed down as a whole. Under the guidance of the guide column 3, the movable die seat 2 presses and fixes the sheet material on the fixed die seat 1. At the same time, the punching die set 4 cuts the sheet material into the contour of the triple guard ring 01; the movable die seat 2 continues to be pressed down, and the flanging die set 5 can punch out the flanging 011 on the inner ring of the semi-finished guard ring with the initial cut contour.

[0039] Reference Figure 5 A central prefabricated die hole 22 is provided on the movable die seat 2 at the central hole corresponding to the triple retainer 01, and the punching die set 4 includes a central prefabricated hole punch 41, which is fixedly arranged on the fixed die seat 1 and correspondingly matched with the central prefabricated die hole 22. The punching die set 4 also includes an outer contour punching die 42, which is fixedly arranged on the movable die seat 2.

[0040] Reference Figure 4 and Figure 5 , a support plate 6 is provided on the fixed die seat 1 corresponding to the outer contour blanking die 42, and a plurality of vertical through holes 61 are provided along the periphery of the support plate 6, a connecting guide rod 11 is slidably provided in each through hole 61, and the bottom end of the connecting guide rod 11 is fixedly provided on the fixed die seat 1. An elastic member 7 is also provided on the fixed die seat 1, and the elastic member 7 in this embodiment is a third compression spring 71, and the third compression spring 71 is sleeved with one corresponding to each connecting guide rod 11, and abuts between the fixed die seat 1 and the support plate 6.

[0041] Reference Figure 5 The flanging die set 5 includes a positioning punch 51 and a flanging punch 52 . A lifting slot 23 is provided on the movable die seat 2 . The positioning punch 51 is slidably arranged in the lifting slot 23 . An elastic support member 8 is arranged in the lifting slot 23 .

[0042] Reference Figure 5 A limit block 511 is integrally formed on the top wall of the positioning punch 51, and a stop block 231 is integrally formed near the opening of the lifting chute 23. The elastic support member 8 in this embodiment is a first compression spring 81, and the first compression spring 81 abuts between the top wall of the lifting chute 23 and the top wall of the positioning punch 51. When the first compression spring 81 is in a natural state, the limit block 511 abuts against the stop block 231.

[0043] Reference Figure 5 The flanging punch 52 is located on one side close to the central prefabricated die hole 22 and is coaxially fixedly arranged on the movable die seat 2. The bottom end of the flanging punch 52 is arranged in an arc surface toward the side of the positioning punch 51. A guide groove 12 is vertically arranged on the fixed die seat 1 corresponding to the flanging punch 52. A support ring sleeve 13 is slidably arranged in the guide groove 12, and an elastic supporting member 9 is arranged in the guide groove 12 to support the supporting ring sleeve 13.

[0044] Reference Figure 5 A fixing plate 14 is fixedly provided at the bottom of the fixed die seat 1, a lower pad 141 is fixedly provided on the bottom wall of the fixing plate 14, a plurality of vertical holes 142 are provided on the fixing plate 14 along the circumference of the support ring sleeve 13, the plurality of vertical holes 142 are connected to the guide groove 12, and a blocking plate 143 is installed at the bottom of the fixing plate 14 by bolts, the blocking plate 143 covers all the vertical holes 142. The elastic supporting member 9 in this embodiment includes a supporting rod 91 and a second compression spring 92, the supporting rod 91 is slidably provided in the vertical hole 142, and the top of each supporting rod 91 extends into the guide groove 12 and abuts against the bottom wall of the support ring sleeve 13, and the second compression spring 92 abuts between the supporting rod 91 and the blocking plate 143.

[0045] The implementation principle of the stamping die for the triple retaining ring of the cylinder in the embodiment of the present application is as follows: when making the triple retaining ring 01, firstly, the sheet material is placed on the fixed die seat 1, and then the movable die seat 2 is driven to be pressed down as a whole to press the column sheet material, and at the same time, the center prefabricated hole concave die cooperates with the center prefabricated hole convex die 41 to punch out the center prefabricated hole in the sheet material, and the outer contour punching die 42 cooperates with the support plate 6 to punch out the outer contour of the triple retaining ring 01, and at this time, the sheet material is punched out with the contour of the triple retaining ring 01;

[0046] The movable die holder 2 is driven to continue to be pressed down. When the fixed die holder 1 is supported by the positioning punch 51 and cannot be pressed down further, the first compression spring 81 at the top of the positioning punch 51 reaches the maximum deformation value. The flanging punch 52 cooperates with the support ring sleeve 13 to press the inner edge of the semi-finished retainer ring with the initial cut contour against the inner side wall of the positioning punch 51 to form a flanging 011.

[0047] The movable mold base 2 is driven to rise as a whole, the first compression spring 81 recovers its deformation and drives the positioning punch 51 to reset, and at the same time the second compression spring 92 recovers its deformation and drives the supporting ring sleeve 13 to reset, and the finished triple retaining ring 01 can be ejected, and the staff can remove the formed triple retaining ring 01 from the mold.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A stamping die for a triple cylinder retainer, characterized in that: The invention comprises a fixed die seat (1) and a movable die seat (2) which cooperate with each other, wherein the movable die seat (2) is located above the fixed die seat (1), and a punching die set (4) is provided on the fixed die seat (1) and the movable die seat (2) corresponding to the contour of the triple guard ring (01), and a flanging die set (5) is provided corresponding to the flanging (011) of the triple guard ring (01), wherein the flanging die set (5) comprises a positioning convex die (51) which is vertically slidably provided on the movable die seat (2) and a flanging convex die (52) which is coaxially provided on one side of the inner ring of the positioning convex die (51), wherein the flanging convex die (52) is fixedly provided on the movable die seat (2), and a lifting groove (23) is provided on the movable die seat (2), wherein the positioning convex die (51) is slidably provided in the lifting groove (23), and an elastic support member (8) is provided in the lifting groove (23) corresponding to the lifting of the positioning convex die (51).

2. A stamping die for a triple cylinder retainer according to claim 1, characterized in that: The elastic support member (8) is a first compression spring (81) abutting between the inner top wall of the lifting slot (23) and the top wall of the positioning punch (51); a limit block (511) is arranged on the top wall of the positioning punch (51); a stop block (231) is arranged near the opening of the lifting slot (23) to prevent the limit block (511) from escaping from the lifting slot (23); when the first compression spring (81) is in a natural state, the limit block (511) abuts against the stop block (231).

3. A stamping die for a triple cylinder retainer according to claim 1, characterized in that: A central prefabricated die hole (22) is provided on the movable die seat (2) at the central hole corresponding to the triple guard ring (01); a central prefabricated hole punch (41) is provided on the fixed die seat (1) at the central prefabricated die hole (22); the flanging punch (52) is located on a side close to the central prefabricated die hole (22); the bottom end of the flanging punch (52) is arranged in an arc surface facing the side of the positioning punch (51); a support ring sleeve (13) is provided on the fixed die seat (1) at the corresponding side of the flanging punch (52); a guide groove (12) is provided vertically on the fixed die seat (1); the support ring sleeve (13) is located in the guide groove (12); and an elastic supporting member (9) for supporting the support ring sleeve (13) is provided in the guide groove (12).

4. A stamping die for a triple cylinder retainer according to claim 3, characterized in that: A fixing plate (14) is provided at the bottom of the fixed mold base (1), and a plurality of vertical holes (142) are opened on the fixing plate (14) along the circumference of the support ring sleeve (13), and the plurality of vertical holes (142) are connected to the guide groove (12). The elastic supporting member (9) includes a supporting rod (91) that slides vertically in the vertical hole (142) and a second compression spring (92) that is arranged in the vertical hole (142) and is used to support the supporting rod (91), and the top of each supporting rod (91) extends into the guide groove (12) and contacts the bottom wall of the support ring sleeve (13).

5. A stamping die for a triple cylinder retainer according to claim 1, characterized in that: The punching die set (4) comprises an outer contour punching die (42), the outer contour punching die (42) is located on a side of the positioning punch (51) away from the flanging punch (52), and is fixedly arranged on the movable die seat (2), a support plate (6) for unloading is provided on the fixed die seat (1) corresponding to the outer contour punching die (42) and a plurality of elastic parts (7) for supporting the support plate (6) are provided on the fixed die seat (1).

6. A stamping die for a triple cylinder retainer according to claim 5, characterized in that: A plurality of connecting guide rods (11) are vertically arranged on the fixed mold base (1) along the periphery of the support plate (6); a through hole (61) is vertically opened on the support plate (6) corresponding to each connecting guide rod (11); the connecting guide rod (11) slides through the corresponding through hole (61); the elastic member (7) is a third compression spring (71); the third compression spring (71) is sleeved with one corresponding to each connecting guide rod (11) and abuts between the fixed mold base (1) and the support plate (6).

7. A stamping die for a triple cylinder retainer according to claim 1, characterized in that: A plurality of vertically arranged guide holes (21) are provided on the bottom wall of the movable mold base (2), and a guide column (3) is vertically arranged corresponding to each guide hole (21) on the fixed mold base (1), and a single guide column (3) is inserted into the guide hole (21) and slidably cooperates with the guide hole (21).

8. A stamping die for a triple cylinder retainer according to claim 7, characterized in that: Each guide column (3) is provided with a plurality of annular grooves (31) along the axial direction.

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