Universal dotting device for thrust bearing flanging gasket

Abstract

The utility model belongs to the technical field of bearings, and particularly relates to a universal dotting device for thrust bearing flanging gaskets, which comprises an upper die and a lower die, a carrying table is arranged at the center of the lower die and comprises a plurality of bearing blocks which can be close to or far away from each other, and a center through hole is formed among the bearing blocks. A locking die holder is slidably mounted on the lower die on the periphery of the carrying table in the radial direction, a locking die is slidably mounted on the locking die holder, and a push block for pushing the locking die to slide in the radial direction is arranged on the locking die holder in a lifting manner; an inserting rod is arranged in the center of the upper die, when the inserting rod is inserted into the center through hole, the bearing blocks are far away from one another, and when the inserting rod is separated from the center through hole, the bearing blocks are close to one another; the insertion rod is inserted into or separated from the central through hole to open or close the carrying table, so that dotting or material returning of gaskets is achieved, dotting operation of the gaskets of different sizes can be achieved by adjusting the positions of the pressing rod and the locking die holder, universality of the dotting device is improved, and cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearings, and in particular relates to a universal dotting device for an outer flange gasket of a thrust bearing. Background Art

[0002] When assembling the thrust bearing, the retainer needs to be pressed into the gasket. The two must not separate and must not affect the rotation of the retainer. Therefore, it is generally necessary to press a lock on the outer flange of the gasket, that is, to dot the outer flange. However, the lock is protruding inward, which makes it difficult to withdraw the material. It is very easy to damage the gasket during withdrawal, and the gaskets have different specifications. When it is necessary to press the lock on gaskets of different sizes, different dotting devices need to be replaced, resulting in high costs. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to solve the problem that the dotting device in the prior art is difficult to unload, the gasket is easily damaged during unloading, and the versatility is poor. When it is necessary to press the lock mouth of gaskets of different sizes, different dotting devices need to be replaced, resulting in high costs. A universal dotting device for thrust bearing outer flange gaskets is now provided.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a universal dotting device for outer flange gaskets of thrust bearings, comprising an upper die and a lower die located below the upper die;

[0005] The center of the lower mold is provided with a carrier for carrying the gasket, the carrier includes a plurality of supporting blocks distributed in a circle and can be close to or away from each other, and a central through hole is formed between the plurality of supporting blocks; the lower mold is located at the outer periphery of the carrier and is radially slidably mounted with a locking die seat, a locking die is slidably mounted on the locking die seat, and a push block for pushing the locking die to slide radially is provided for lifting, the push block and the locking die are both wedge blocks, and the end surfaces of the two cooperating with each other are both inclined surfaces, and the locking die has a locking surface for pressing the outer flange of the gasket to lock;

[0006] An insertion rod is provided at the central part of the upper mold. When the insertion rod is inserted into the central through hole, the supporting blocks move away from each other. When the insertion rod is separated from the central through hole, the supporting blocks move close to each other. A pressure rod for pressing down the push block to move the push block downward is radially slidably installed at the part of the upper mold located outside the insertion rod.

[0007] Furthermore, a first elastic member for driving the push block to reset is provided between the push block and the locking die base, and a second elastic member for driving the locking die to reset is provided between the locking die and the locking die base.

[0008] Furthermore, a support block is fixed on the pressure rod, and a pressing bolt for pressing the gasket is elastically provided on the support block.

[0009] Furthermore, a height block is provided at the bottom of each supporting block, and a plurality of height blocks are enclosed to form a height platform having a central insertion hole, and the central insertion hole is concentric with the central through hole.

[0010] Furthermore, the height platform includes two symmetrically arranged height blocks, with a connecting bolt inserted between the two, and a third elastic member sleeved on the connecting bolt, and one end of the third elastic member abuts against the nut of the connecting bolt, and the other end abuts against the outer wall of one of the height blocks.

[0011] Furthermore, the inner wall of the height platform protrudes upward to form a positioning protrusion for extending into the central through hole to position the carrier.

[0012] Furthermore, a guide rod is provided between the two height blocks, and there are two guide rods distributed on both sides of the connecting bolt.

[0013] Furthermore, a stepped surface is provided at one end of the push block away from the inclined surface, the locking die base is provided with a receiving groove for accommodating the push block, and a limiting portion is formed at the top of the receiving groove for cooperating with the stepped surface to limit the push block.

[0014] Furthermore, a pressing plate is provided at the bottom of the upper mold, and a sliding groove is opened inside the pressing plate for the pressing rod to slide, and the sliding groove is larger at the top and smaller at the bottom to form a first step, and the pressing rod is larger at the top and smaller at the bottom to form a second step abutting the first step.

[0015] Furthermore, a guide rail is provided on the lower die, and a sliding part cooperating with the guide rail protrudes from the bottom of the locking die base.

[0016] The beneficial effects of the utility model are as follows: the utility model utilizes an insert rod to be inserted into or out of a central through hole to open or close the carrier, thereby realizing gasket dotting or material withdrawal, and at the same time, the dotting operation of gaskets of different sizes can be realized by adjusting the position of a pressure rod and a locking die seat, thereby improving the versatility of the dotting device and reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model when it is ready to be dotted;

[0019] Figure 2 It is a cross-sectional view of the utility model when it is ready to be dotted;

[0020] Figure 3 It is a schematic diagram of the structure when the carrier is folded;

[0021] Figure 4 It is a schematic diagram of the structure of the utility model when dotting;

[0022] Figure 5 It is a cross-sectional view of the utility model when dotting;

[0023] Figure 6 It is a schematic diagram of the structure when the carrier is opened;

[0024] Figure 7 It is a schematic diagram of the structure of the gasket after dotting;

[0025] In the figure:

[0026] 1. Upper mold; 2. Insert rod; 3. Press rod; 4. Support block; 5. Press bolt; 6. Lower mold; 7. Carrier; 701. Support block; 702. Center through hole; 8. Height platform; 801. Height block; 802. Center insert hole; 803. Positioning protrusion; 9. Connecting bolt; 10. Guide rod; 11. Press plate; 1101. Slide groove; 12. Guide rail; 13. Locking mold base; 1301. Limiting part; 1302. Sliding part; 14. Locking mold; 1401. Locking surface; 15. Push block; 1501. Step surface; 16. First elastic member; 17. Second elastic member; 18. Third elastic member; 19. Fourth elastic member; 20. Gasket; 2001. Flanging; 2002. Locking. DETAILED DESCRIPTION

[0027] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0028] like Figure 1-Figure 7 As shown, a universal dotting device for thrust bearing outer flange gasket is used to press the lock openings 2002 on the outer flange 2001. The number of the lock openings 2002 is generally four, which are formed by the outer flange 2001 protruding inward. The dotting device includes an upper die 1 and a lower die 6 located below the upper die 1;

[0029] A carrier 7 for carrying the gasket 20 is provided at the central part of the lower mold 6. The carrier 7 and the lower mold 6 are detachably installed. The carrier 7 includes a plurality of supporting blocks 701 distributed in a circle and can approach or move away from each other. A central through hole 702 is formed between the supporting blocks 701. When the supporting blocks 701 approach each other, the carrier 7 is in a closed state, and the central through hole 702 shrinks; when the supporting blocks 701 move away from each other, the carrier 7 is in an open state, and the central through hole 702 expands; a supporting protrusion is formed on the top of the carrier 7 along its radial protrusion, and the supporting protrusion cooperates with the outer flange 2001 of the gasket 20, and the outer flange 2001 is sleeved on the outside of the supporting protrusion. Correspondingly, the bottom of the carrier 7 is recessed to form a lock height limiting step for forming the lock 2002 support height.

[0030] The lower mold 6 is located at the outer portion of the carrier 7 and is radially slidably mounted with a plurality of locking die seats 13. A locking die 14 is slidably mounted on the locking die seat 13 and a push block 15 is provided for pushing the locking die 14 to slide radially. The push block 15 is located at the outer side of the locking port 2002 (the side close to the gasket 20 is the inner side, and the side away from the gasket 20 is the outer side). The push block 15 and the locking die 14 are both wedge blocks, and the end faces of the two that cooperate with each other are both inclined surfaces, and the two inclined surfaces are inclined outward from top to bottom. When the push block 15 moves downward, it can drive the locking die 14 to move in the direction of the gasket 20 to press the locking port 2002. The locking die 14 has a locking surface 1401 for pressing the locking port 2002 against the outer flange 2001 of the gasket 20; the number of the locking die seats 13 and the locking die 14 corresponds to the number of the locking ports 2002. In this embodiment, there are four locking die seats 13 and four locking die 14;

[0031] The central part of the upper mold 1 is provided with an insertion rod 2. When the insertion rod 2 is inserted into the central through hole 702, the plurality of support blocks 701 move away from each other. When the insertion rod 2 is separated from the central through hole 702, the plurality of support blocks 701 move toward each other. The insertion rod 2 includes a cylindrical section and a conical section at the bottom of the cylindrical section. A pressure rod 3 for pressing down the push block 15 to move the push block 15 downward is radially slidably installed at the portion of the upper mold 1 located at the periphery of the insertion rod 2.

[0032] When the upper mold 1 is pressed down, the pressure rod 3 and the insertion rod 2 move downward synchronously, and the insertion rod 2 is gradually inserted into the central through hole 702 to make the several supporting blocks 701 move away from each other until the carrier 7 is fully opened. At this time, the size of the carrier 7 matches the size of the gasket 20 (that is, the supporting protrusion is in contact with the outer flange 2001), which can support the gasket 20, and then the pressure rod 3 moves down to contact with the push block 15, which can drive the push block 15 to move downward synchronously. At the same time, the push block 15 pushes the locking mold 14 in the direction of the gasket 20 through the inclined surface to press the locking 2002. After the pressing is completed, the upper mold 1 moves up, driving the insertion rod 2 and the pressure rod 3 to move upward synchronously. When the insertion rod 2 is separated from the carrier 7, the several supporting blocks 701 approach each other until they are in contact, and the carrier 7 is closed. At this time, the size of the carrier 7 is smaller than the size of the gasket 20 (the supporting protrusion is away from the outer flange 2001), and the material can be returned.

[0033] When it is necessary to change the mold and press gaskets 20 of different sizes, it is only necessary to replace the supporting blocks 701 of different sizes and adjust the positions of the locking mold base 13 and the pressing rod 3 to achieve the pressing of gaskets 20 of different sizes, thereby improving the versatility of the dotting mold.

[0034] In some examples, a first elastic member 16 for driving the push block 15 to reset is provided between the push block 15 and the locking die base 13, and a second elastic member 17 for driving the locking die 14 to reset is provided between the locking die 14 and the locking die base 13; when the upper die 1 is pressed downward, the pressure rod 3 and the insertion rod 2 move downward synchronously, and when the pressure rod 3 moves downward to contact the push block 15, it can drive the push block 15 to move downward synchronously. At this time, the first elastic member 16 is compressed, and at the same time, the push block 15 pushes the locking die 14 to move in the direction of the gasket 20 to press the lock 2002. At this time, the second elastic member 17 is compressed. After the pressing is completed, the upper die 1 moves upward, driving the insertion rod 2 and the pressure rod 3 to move upward synchronously. When the pressure rod 3 moves upward to be separated from the push block 15, the push block 15 resets and moves upward under the action of the first elastic member 16, and at the same time, the locking die 14 resets under the action of the second elastic member 17.

[0035] In some examples, a support block 4 is fixed on the pressure rod 3. The support block 4 can be a nut threadedly connected to the pressure rod 3, and locking nuts are provided above and below the nut for locking it. A pressing bolt 5 for pressing the gasket 20 is elastically provided on the support block 4, and a fourth elastic member 19 is sleeved on the screw rod of the pressing bolt 5. One end of the fourth elastic member 19 abuts against the nut of the pressing bolt 5, and the other end abuts against the support block 4; when the upper mold 1 is pressed downward to drive the pressure rod 3 to move downward, the pressing bolt 5 moves downward synchronously until the nut contacts the gasket 20, the pressure rod 3 continues to move downward, the fourth elastic member 19 is compressed, and the nut presses the gasket 20 to prevent the gasket 20 from shifting during the pressing process.

[0036] In some examples, a height block 801 is provided at the bottom of each supporting block 701, and the supporting blocks 701 and the height blocks 801 are fixed by bolts. When it is necessary to change the mold and press gaskets 20 of different sizes, the supporting blocks 701 of different sizes can be replaced. Several height blocks 801 are enclosed to form a height platform 8 with a central socket 802, and the central socket 802 is concentric with the central through hole 702 for inserting the insertion rod 2.

[0037] In some examples, the height platform 8 includes two symmetrically arranged height blocks 801, wherein one of the height blocks 801 is fixed to the lower mold 6 as a fixed block, and the other height block 801 is slidably connected to the lower mold 6 as a sliding block, and the two height blocks 801 can be moved closer or farther apart by sliding the sliding blocks;

[0038] A connecting bolt 9 is inserted between the two height blocks 801. The connecting bolt 9 includes a head close to the nut and a tail away from the nut. The tail is threadedly connected to one of the height blocks 801 through a thread (the height block 801 has a threaded hole threadedly connected to the tail), and the head is inserted into the other height block 801 (the height block 801 has a through hole for the head to pass through), and the head is sleeved with a third elastic member 18, one end of the third elastic member 18 abuts against the nut of the connecting bolt 9, and the other end abuts against the outer wall of the height block 801 through which the head is inserted; when the insertion rod 2 is inserted into the center socket 802, the sliding block gradually moves away from the fixed block, and the third elastic member 18 is compressed; when the insertion rod 2 is separated from the center socket 802, the third elastic member 18 is reset to drive the sliding block to reset to fit with the fixed block.

[0039] In some examples, the inner wall of the height platform 8 protrudes upward to form a positioning protrusion 803 for extending into the central through hole 702 to position the carrier 7. When replacing the supporting block 701, the positioning protrusion 803 can achieve rapid positioning of the supporting block 701, thereby improving replacement efficiency.

[0040] In some examples, a guide rod 10 is passed between the two height blocks 801 . There are two guide rods 10 and they are distributed on both sides of the connecting bolt 9 . When the two height blocks 801 approach or move away from each other, the guide rods 10 can play a guiding role to ensure the linear movement of the two.

[0041] In some examples, a stepped surface 1501 is provided at one end of the push block 15 away from the inclined surface, and the locking mold base 13 is provided with a receiving groove for accommodating the push block 15, and a limiting portion 1301 is formed on the top of the receiving groove for cooperating with the stepped surface 1501 to limit the push block 15; when the first elastic member 16 is reset to drive the push block 15 to move upward, the limiting portion 1301 can limit the maximum distance of the push block 15 moving upward.

[0042] In some examples, a pressing plate 11 is provided at the bottom of the upper mold 1, and a sliding groove 1101 is opened inside the pressing plate 11 for the pressing rod 3 to slide, and the sliding groove 1101 is larger at the top and smaller at the bottom to form a first step, and the pressing rod 3 is larger at the top and smaller at the bottom to form a second step abutting against the first step, and the pressing rod 3 can be suspended on the pressing plate 11 through the abutment between the first step and the second step.

[0043] In some examples, a guide rail 12 is provided on the lower mold 6, and a sliding portion 1302 that cooperates with the guide rail 12 is protruded from the bottom of the locking mold base 13; the linear movement of the locking mold base 13 can be ensured by the cooperation between the guide rail 12 and the sliding portion 1302.

[0044] Working principle:

[0045] When in use, the upper mold 1 is pressed down, the pressure rod 3 and the insertion rod 2 move down synchronously, and the insertion rod 2 is gradually inserted into the central insertion hole 802 to make the two height blocks 801 move away from each other. At this time, the third elastic member 18 is compressed, and the two supporting blocks 701 move away from each other until the carrier 7 is fully opened. At this time, the size of the carrier 7 matches the size of the gasket 20 (that is, the supporting protrusion fits with the outer flange 2001), which can support the gasket 20. At the same time, the pressure rod 3 moves down, driving the downward pressure bolt 5 to move down to press the gasket 20. When the pressure rod 3 moves down to contact with the push block 15, it can drive the push block 15 to move down synchronously. At this time, the first elastic member 16 is compressed, and the push block 15 passes through the inclined surface. The locking die 14 is pushed to move in the direction of the gasket 20 to press the locking 2002, and the second elastic member 17 is compressed at this time; after the pressing is completed, the upper die 1 moves upward, driving the insertion rod 2 and the pressure rod 3 to move upward synchronously. When the insertion rod 2 is separated from the carrier 7, the two height blocks 801 approach each other under the action of the third elastic member 18, driving the two supporting blocks 701 to approach each other until they are in contact, and the carrier 7 is closed. At this time, the size of the carrier 7 is smaller than the size of the gasket 20 (that is, the supporting protrusion is away from the outer flange 2001) to realize material withdrawal, and at the same time, the push block 15 is reset and moved upward under the action of the first elastic member 16, and the locking die 14 is reset under the action of the second elastic member 17.

[0046] When it is necessary to change the mold and press gaskets 20 of different sizes, it is only necessary to replace the supporting blocks 701 of different sizes and adjust the positions of the locking mold base 13 and the pressing rod 3 to achieve the pressing of gaskets 20 of different sizes, thereby improving the versatility of the dotting mold.

[0047] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A universal dotting device for thrust bearing outer flange gasket, characterized in that: It comprises an upper mold (1) and a lower mold (6) located below the upper mold (1); A carrier (7) for carrying the gasket (20) is provided at the central part of the lower mold (6), and the carrier (7) includes a plurality of supporting blocks (701) distributed in a circumference and capable of approaching or moving away from each other, and a central through hole (702) is formed between the plurality of supporting blocks (701); a locking die seat (13) is radially slidably mounted on the portion of the lower mold (6) located at the periphery of the carrier (7), a locking die (14) is slidably mounted on the locking die seat (13), and a push block (15) is provided for pushing the locking die (14) to slide radially, the push block (15) and the locking die (14) are both wedge blocks, and the end surfaces of the two that cooperate with each other are both inclined surfaces, and the locking die (14) has a locking surface (1401) for pressing the locking (2002) against the outer flange (2001) of the gasket (20); The central portion of the upper mold (1) is provided with an insertion rod (2). When the insertion rod (2) is inserted into the central through hole (702), the plurality of support blocks (701) move away from each other. When the insertion rod (2) is separated from the central through hole (702), the plurality of support blocks (701) move toward each other. A pressure rod (3) for pressing down the push block (15) so as to move the push block (15) downward is radially slidably installed at a portion of the upper mold (1) located outside the insertion rod (2).

2. A universal dotting device for thrust bearing outer flange gasket according to claim 1, characterized in that: A first elastic member (16) for driving the push block (15) to return to its original position is provided between the push block (15) and the locking die base (13), and a second elastic member (17) for driving the locking die (14) to return to its original position is provided between the locking die (14) and the locking die base (13).

3. A universal dotting device for thrust bearing outer flange gasket according to claim 1, characterized in that: A support block (4) is fixed on the pressure rod (3), and a pressing bolt (5) for pressing the gasket (20) is elastically arranged on the support block (4).

4. A universal dotting device for thrust bearing outer flange gasket according to claim 1, characterized in that: A height block (801) is arranged at the bottom of each supporting block (701), and a plurality of height blocks (801) are enclosed to form a height platform (8) having a central insertion hole (802), and the central insertion hole (802) is concentric with the central through hole (702).

5. A universal dotting device for thrust bearing outer flange gasket according to claim 4, characterized in that: The height platform (8) comprises two symmetrically arranged height blocks (801), between which a connecting bolt (9) is inserted, and a third elastic member (18) is sleeved on the connecting bolt (9), and one end of the third elastic member (18) abuts against the nut of the connecting bolt (9), and the other end abuts against the outer wall of one of the height blocks (801).

6. A universal dotting device for thrust bearing outer flange gasket according to claim 4, characterized in that: The inner wall of the height platform (8) protrudes upward to form a positioning protrusion (803) for extending into the central through hole (702) to position the carrier (7).

7. A universal dotting device for outer flange gaskets of thrust bearings according to claim 5, characterized in that: A guide rod (10) is provided between the two height blocks (801), and there are two guide rods (10) distributed on both sides of the connecting bolt (9).

8. The universal dotting device for thrust bearing outer flange gasket according to claim 1, characterized in that: The push block (15) is provided with a stepped surface (1501) at one end away from the inclined surface, and the locking die base (13) is provided with a receiving groove for accommodating the push block (15), and a limiting portion (1301) is formed at the top of the receiving groove for cooperating with the stepped surface (1501) to limit the push block (15).

9. A universal dotting device for thrust bearing outer flange gasket according to claim 1, characterized in that: A pressing plate (11) is provided at the bottom of the upper mold (1), and a sliding groove (1101) is provided inside the pressing plate (11) for the pressing rod (3) to slide, and the sliding groove (1101) is larger at the top and smaller at the bottom to form a first step, and the pressing rod (3) is larger at the top and smaller at the bottom to form a second step that abuts against the first step.

10. A universal dotting device for outer flange gaskets of thrust bearings according to claim 1, characterized in that: The lower die (6) is provided with a guide rail (12), and the bottom of the locking die base (13) is protruded with a sliding portion (1302) that cooperates with the guide rail (12).

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