Press-in die holder and retainer ball mounting tool

Abstract

The utility model relates to the technical field of bearing part assembling tools, in particular to a press-in die holder and a retainer ball assembling tool, the press-in die holder comprises a main body and a press-in ring arranged on one end face of the main body in a protruding mode, the outer side face of the press-in ring is obliquely arranged, and the thickness of the end, close to the main body, of the press-in ring is larger than that of the end, away from the main body, of the press-in ring; the retainer ball mounting tool comprises a press-in die set and further comprises a containing die base used in cooperation with the press-in die base, the containing die base comprises an outer wall and an inner positioning column, the outer wall and the inner positioning column are embedded to form an annular containing groove, and when the press-in die base and the containing die base are used in cooperation, a gap exists between the outer side of a press-in ring and the outer wall of the containing die base. The mounting effect when the steel balls are mounted in the retainer can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of bearing assembly tooling, and in particular to a press-in die seat and retainer ball mounting tooling. Background Art

[0002] like Figure 1 As shown, the retainer 11 is a commonly used assembly part when the bearing is installed. It is annular and has multiple ball-loading holes 12. Each ball-loading hole 12 can be installed with a corresponding steel ball 13. The retainer 11 is made of elastic material and has an arc surface in cross section, so that the opening on the side close to the steel ball 13 is smaller than the diameter of the steel ball 13, and the interior can accommodate the steel ball 13. In this way, when installing, the steel ball 13 at the opening needs to be pressed hard into the ball-loading hole 12. The steel balls 13 of the bearing are first installed in each ball-loading hole 12 of the retainer 11 in sequence, and then the retainer 11 with the steel balls 13 installed is installed in the bearing. The retainer 11 allows the steel balls 13 to rotate in their respective ball-loading holes 12 without getting loose.

[0003] like Figure 2 and Figure 3 As shown, the ball loading tool is required to install the steel ball 13 on the retaining frame 11 at one time. In the current technology, the ball loading tool mainly includes two parts, namely, the placement mold base 5 and the press-in mold base 1. The placement mold base 5 is concave to form a placement cavity, and the placement cavity is used to place the retaining frame 11. The press-in mold base 1 is provided with a protruding ring 14. The outer diameter of the protruding ring 14 is similar to the inner diameter of the placement cavity, so that the protruding ring 14 can be loosely matched with the placement cavity. After a sufficient amount of steel balls are placed on the retaining frame 11, the height of the steel ball 13 will be higher than the height of the retaining frame 11 when the steel ball is not pressed into the ball loading hole 12. In this way, the press-in mold base 1 is pressed in the placement cavity, so that the protruding ring 14 first contacts the steel ball 13, and the steel ball 13 is forced to move into the ball loading hole 12. The deformation of the retaining frame 11 is used to achieve an interference fit with the steel ball 13 to complete the installation of the steel ball.

[0004] In the ball loading tooling of the current technology, the cross section of the protruding ring 14 is a rectangular structure, and due to the clearance fit between the protruding ring 14 and the placement cavity, the protruding ring 14 applies a vertical downward force to the steel ball 13 when pressing the steel ball 13. However, the openings of the ball loading holes 12 of most current retainers 11 are at a certain angle to the vertical plane. Therefore, when the steel ball 13 is subjected to a vertical downward force, it cannot be well guaranteed that the steel ball 13 can be installed in the ball loading hole 12. At the same time, because some retainers 11 and steel Due to the difference in the model of the ball 13, in some cases, when the steel ball 13 completely enters the ball loading hole 12, the height of the steel ball 13 will be lower than the height of the retaining frame 11. In this case, when the protruding ring 14 in the current technology presses the steel ball 13, because it applies a vertical downward force, it is very likely that the protruding ring 14 will abut against the top of the retaining frame 11 but the steel ball 13 will not completely enter the ball loading hole 12. Therefore, the ball loading effect of the ball loading tooling in the current technology is poor, and it is easy for the steel ball 13 to not be completely loaded into the retaining frame 11. Summary of the invention

[0005] In order to improve the installation effect when installing steel balls into a retaining frame, the present application provides a press-in die seat and a retaining frame ball installation tool.

[0006] In a first aspect, the present application provides a press-in mold base, which adopts the following technical solution:

[0007] A press-in die seat comprises a main body and a press-in ring protruding from one end surface of the main body, wherein the outer side surface of the press-in ring is inclined, and the thickness of the end of the press-in ring close to the main body is greater than the thickness of the end of the press-in ring away from the main body.

[0008] In some of the embodiments, a first mounting hole is formed on the press-in die base, and a first threaded mounting member is fixedly connected to the first mounting hole, and the first threaded mounting member is located at an end away from the press-in ring.

[0009] In some of the embodiments, the press-in ring is made of a deformable elastic material.

[0010] In some of the embodiments, a chamfer is provided at one end of the press-in ring away from the main body.

[0011] In the second aspect, the present application provides a cage ball installation tool, which adopts the following technical solution:

[0012] A retainer ball loading tooling includes the above-mentioned press-in die base, and also includes a placement die base used in conjunction with the press-in die base, the placement die base includes an outer wall and an inner positioning column, the outer wall and the inner positioning column are embedded between to form an annular placement groove, when the press-in die base is used in conjunction with the placement die base, there is a gap between the outer side of the press-in ring and the outer wall of the placement die base.

[0013] In some of the embodiments, a second mounting hole is formed on the placement mold base, and a second threaded mounting member is fixedly connected to the second mounting hole, and the second threaded mounting member is located at an end away from the annular placement groove.

[0014] In some of the embodiments, when the press-in mold base and the placement mold base are used in combination, a clearance fit is formed between the press-in ring and the inner positioning column.

[0015] In some of the embodiments, when the press-in mold base and the placement mold base are used in combination, the press-in ring and the inner positioning column are interference fit.

[0016] In some embodiments, a top edge of the inner positioning post is chamfered.

[0017] In some of the embodiments, a protective patch is disposed in the annular placement groove.

[0018] Through the embodiments of the present application, there are beneficial effects:

[0019] When the press-in ring contacts the steel balls on the retaining frame and presses the press-in die seat in the vertical direction, the press-in ring applies a force in a direction at a certain angle to the vertical direction to each steel ball due to the inclination of one end of the press-in ring, so that the steel ball can be pressed into the steel ball hole more easily and firmly from the opening of the inclined steel ball hole; at the same time, because the direction in which the press-in ring in the embodiment of the present application applies force to the steel ball is to move the steel ball from the inside of the retaining frame to the outside of the retaining frame, and the press-in ring will not contact the top of the retaining frame, the present application does not need to consider the model difference between the retaining frame and the steel ball, and there will be no situation in which the press-in ring abuts against the top of the retaining frame but the steel ball does not fully enter the steel ball hole due to the height of the steel ball being higher or lower than the height of the retaining frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a simplified schematic diagram of the current technology after the cage and steel balls are installed.

[0021] Figure 2 It is a structural schematic diagram of the ball loading tooling in the current technology.

[0022] Figure 3 It is a schematic diagram of the structure and force when loading the ball in the current technology.

[0023] Figure 4 It is a structural schematic diagram of the press-in module in an embodiment of the present application.

[0024] Figure 5 It is a front view of the press-in module in the embodiment of the present application.

[0025] Figure 6It is a schematic diagram of the structure of the retaining frame ball mounting tooling in the embodiment of the present application.

[0026] Figure 7 It is a schematic diagram of the structure and force when loading the ball in the embodiment of the present application.

[0027] Explanation of the reference numerals in the accompanying drawings: 1. Press-in die base; 2. Press-in ring; 3. First mounting hole; 4. First threaded mounting part; 5. Placement die base; 6. Outer wall; 7. Inner positioning column; 8. Annular placement groove; 9. Second mounting hole; 10. Second threaded mounting part; 11. Retaining frame; 12. Ball loading hole; 13. Steel ball; 14. Protruding ring. DETAILED DESCRIPTION

[0028] It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each embodiment of the present invention described below can be combined with each other as long as there is no conflict between them.

[0029] In the description of this application, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples.

[0031] The embodiment of the present application discloses a press-in mold base.

[0032] like Figure 4 and Figure 5 As shown, the press-in die seat 1 includes a main body and a press-in ring 2 protruding from one end surface of the main body, the outer side surface of the press-in ring 2 is inclined, and the thickness of the end of the press-in ring 2 close to the main body is greater than the thickness of the end of the press-in ring 2 away from the main body.

[0033] The main body is made of plastic such as PP or PE, or can be made of metal or silicone with a certain hardness, and is generally cylindrical.

[0034] The press-in ring 2 extends and protrudes in a direction perpendicular to the end face of the main body to form a circle of continuous convex circular rings, and the outer side of the press-in ring 2, that is, the side used to abut against the steel balls 13 on the retaining frame 11 in the placement mold base 5 when used in conjunction with the placement mold base 5 later, is inclined. The end of the press-in ring 2 close to the main body is thicker than the end away from the main body, so that when the press-in ring 2 contacts the steel balls 13 on the retaining frame 11 and presses the press-in mold base 1 in the vertical direction, due to the inclination of one end of the press-in ring 2, the press-in ring 2 applies a force in a direction with a certain angle to the vertical direction to each steel ball 13, so that the steel ball 13 can be pressed into the ball loading hole 12 more easily and firmly from the opening of the inclined ball loading hole 12.

[0035] When the steel ball is pressed in through the press-in die seat 1, from the inside to the outside, it is respectively the press-in ring 2-steel ball 13-retaining frame 11.

[0036] At the same time, because the direction in which the force applied by the press-in ring 2 on the steel ball 13 in the embodiment of the present application is to move the steel ball 13 from the inner side of the retaining frame 11 to the outer side of the retaining frame 11, and the press-in ring 2 will not contact the top of the retaining frame 11, the present application does not need to consider the model difference between the retaining frame 11 and the steel ball 13, and there will be no situation in which the press-in ring 2 abuts against the top of the retaining frame 11 but the steel ball 13 does not fully enter the ball loading hole 12 due to the height of the steel ball 13 being higher or lower than the height of the retaining frame 11.

[0037] like Figure 5 As shown, in other embodiments, a first mounting hole 3 is opened on the press-in mold base 1, and a first threaded mounting member 4 is fixedly connected in the first mounting hole 3, and the first threaded mounting member 4 is located at an end away from the press-in ring 2.

[0038] The first mounting hole 3 is vertically opened along the thickness direction of the press-in die base 1, one end of the first threaded mounting member 4 is fixedly connected to the press-in die base 1 through the first mounting hole 3, and the other end protrudes from the press-in die base 1, and a thread is arranged on the outer wall 6 of the end of the first threaded mounting member 4 away from the press-in die base 1. The press-in die base 1 can be installed into a corresponding hydraulic or other mobile equipment through the first threaded mounting member 4 to realize the automatic pressing action after the ball is loaded.

[0039] In other embodiments, the pressing ring 2 is made of a deformable elastic material.

[0040] The pressing ring 2 is made of PE plastic or silicone material, has a certain elasticity, and can achieve deformation within a certain range. This can reduce the rigid contact with the steel ball 13 when pressing the steel ball 13, and improve the pressing fit and ball loading effect by deformation when pressing the steel ball 13.

[0041] In other embodiments, a chamfer is provided at one end of the press-in ring 2 away from the main body.

[0042] In the subsequent disclosure of the placement mold base 5, an internal positioning column 7 is arranged at the center position of the placement mold base 5. When the press-in mold base 1 and the placement mold base 5 are used in conjunction with each other, in order to improve the smoothness of the conjunction, a chamfer is arranged at the end of the press-in ring 2 away from the main body. This can make the press-in ring 2 smoother when inserted into the internal positioning column 7 and provide a certain offset value.

[0043] like Figure 6 and Figure 7 As shown, the embodiment of the present application discloses a ball loading tool for a retainer 11, including the above-mentioned press-in die base 1, and also including a placement die base 5 used in conjunction with the press-in die base 1, and the placement die base 5 includes an outer wall 6 and an inner positioning column 7. The outer wall 6 and the inner positioning column 7 are embedded to form an annular placement groove 8. When the press-in die base 1 is used in conjunction with the placement die base 5, there is a gap between the outer side of the press-in ring 2 and the outer wall 6 of the placement die base 5.

[0044] The placement die base 5 is used for placing the retaining frame 11 , and the press-in die base 1 and the placement die base 5 together form a complete retaining frame 11 ball loading tool.

[0045] The placement mold base 5 includes an outer wall 6 and an inner positioning column 7, and an embedded annular placement groove 8 is provided between the outer wall 6 and the inner positioning column 7. The annular placement groove 8 is used to place the retainer 11, and when the retainer 11 is placed in the annular placement groove 8, the retainer 11 is in a state of being sleeved on the inner positioning column 7, and the inner positioning column 7 is used to fix the position of the retainer 11 to prevent the position of the retainer 11 from changing when the ball is loaded.

[0046] The use process of the ball loading tool is as follows: first, the retainer 11 is loaded into the placement die base 5, and the steel balls 13 are respectively placed at the opening positions of the ball loading holes 12 on the retainer 11, and the press-in ring 2 of the press-in die base 1 is moved toward the retainer 11 and pressed, and the press-in ring 2 applies force to the steel balls 13 in the direction of the steel ball holes on the retainer 11 during the movement, so that the steel balls 13 are pressed into the ball loading holes 12, and the ball loading work is realized. When used in combination, the retainer 11 and the steel balls 13 are in the gap between the outer side of the press-in ring 2 and the outer wall 6 of the placement die base 5.

[0047] like Figure 6 and Figure 7 As shown, in other embodiments, a second mounting hole 9 is opened on the placement mold base 5, and a second threaded mounting member 10 is fixedly connected in the second mounting hole 9, and the second threaded mounting member 10 is located at one end away from the annular placement groove 8.

[0048] The second mounting hole 9 is vertically opened along the thickness direction of the placement die base 5, one end of the second threaded mounting member 10 is fixedly connected to the placement die base 5 through the second mounting hole 9, and the other end protrudes from the placement die base 5, and a thread is arranged on the outer wall 6 of the end of the second threaded mounting member 10 away from the placement die base 5. The placement die base 5 can be installed into a corresponding hydraulic or other mobile equipment through the second threaded mounting member 10, and the automatic ball loading action can be realized together with the automatically movable press-in die base 1.

[0049] In other embodiments, when the press-in mold base 1 and the placement mold base 5 are used in combination, the press-in ring 2 and the inner positioning column 7 are clearance-matched.

[0050] When the press-in mold base 1 and the placement mold base 5 are matched, the press-in ring 2 is annular and will be sleeved on the inner positioning column 7. In the embodiment of the present application, the clearance between the press-in ring 2 and the inner positioning column 7 is matched, so that the inner positioning column 7 can be pressed into the ring 2 for positioning at the same time, thereby reducing the position deviation when the press-in ring 2 applies pressure to the steel ball and improving the ball loading effect.

[0051] In other embodiments, when the press-in mold base 1 and the placement mold base 5 are used in combination, the press-in ring 2 and the inner positioning column 7 are interference fit.

[0052] In the embodiment of the present application, when the press-in die base 1 and the placement die base 5 are used in combination, there is an interference fit between the press-in ring 2 and the inner positioning column 7. The interference fit allows the press-in ring 2 to be sleeved on the inner positioning column 7. Because the diameter of the inner positioning column 7 is larger than the inner diameter of the press-in ring 2, the inner positioning column 7 will cause the press-in ring 2 to elastically deform outward, thereby increasing the overall diameter range of the press-in ring 2 to a certain extent, so that the press-in ring 2 can exert a greater force on the steel ball on the retaining frame 11, thereby improving the ball loading effect.

[0053] In some other embodiments, the top edge of the inner positioning column 7 is provided with a chamfer.

[0054] Setting a chamfer on the top edge of the inner positioning column 7 can provide a larger offset value when the press-in ring 2 is sleeved on the inner positioning column 7. The press-in ring 2 does not need to be very accurately oriented toward the inner positioning column 7, thereby improving the efficiency of use when used in conjunction.

[0055] In other embodiments, a protective patch is disposed in the annular placement groove 8 .

[0056] When the mold base 1 is pressed into the steel ball 13 on the retaining frame 11 in the placement mold base 5, the steel ball 13 will also exert force on the retaining frame 11, and the retaining frame 11 will be squeezed with the placement mold base 5 under the force. In order to reduce the extrusion stress caused by the extrusion between the two, a protective patch is set to effectively reduce the wear caused by the hard contact between the placement mold base 5 and the retaining frame 11.

[0057] The implementation principle is:

[0058] When the press-in ring 2 contacts the steel balls 13 on the retaining frame 11 and is pressed into the mold base 1 in the vertical direction, the press-in ring 2 applies a force in a direction at a certain angle to the vertical direction to each steel ball 13 due to the inclination of one end of the press-in ring 2, so that the steel ball 13 can be pressed into the ball loading hole 12 more easily and firmly from the opening of the inclined ball loading hole 12.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any 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 press-in die base, characterized in that: It comprises a main body and a press-in ring (2) protruding from one end surface of the main body, wherein the outer side surface of the press-in ring (2) is inclined, and the thickness of the end of the press-in ring (2) close to the main body is greater than the thickness of the end of the press-in ring (2) away from the main body.

2. The press-in die base according to claim 1, characterized in that: The press-in die seat (1) is provided with a first mounting hole (3), and a first threaded mounting member (4) is fixedly connected to the first mounting hole (3), wherein the first threaded mounting member (4) is located at an end away from the press-in ring (2).

3. The press-in die base according to claim 1, characterized in that: The press-in ring (2) is made of a deformable elastic material.

4. The press-in die base according to claim 3, characterized in that: An end of the press-in ring (2) away from the main body is provided with a chamfer.

5. A retainer ball loading tool, characterized in that: It comprises a press-in die base (1) as claimed in any one of claims 1 to 4, and also comprises a placement die base (5) used in conjunction with the press-in die base (1), the placement die base (5) comprising an outer wall (6) and an inner positioning column (7), the outer wall (6) and the inner positioning column (7) are embedded to form an annular placement groove (8), when the press-in die base (1) is used in conjunction with the placement die base (5), there is a gap between the outer side of the press-in ring (2) and the outer wall (6) of the placement die base (5).

6. The ball retainer tooling according to claim 5, characterized in that: The placement mold base (5) is provided with a second mounting hole (9), and a second threaded mounting member (10) is fixedly connected to the second mounting hole (9), wherein the second threaded mounting member (10) is located at an end away from the annular placement groove (8).

7. The retainer ball loading tool according to claim 5, characterized in that: When the press-in mold base (1) and the placement mold base (5) are used in combination, a clearance fit is formed between the press-in ring (2) and the inner positioning column (7).

8. The ball retainer tooling according to claim 5, characterized in that: When the press-in mold base (1) and the placement mold base (5) are used in combination, an interference fit is formed between the press-in ring (2) and the inner positioning column (7).

9. The retainer ball loading tool according to claim 5, characterized in that: The top edge of the inner positioning column (7) is provided with a chamfer.

10. The retainer ball loading tool according to claim 5, characterized in that: A protective patch is arranged in the annular placement groove (8).

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