A press-in mounting device for air bearing assembly

Abstract

A press-in fitting device for assembling an air bearing, which is used to press-fit a plurality of throttles into an air bearing, wherein the air bearing has a plurality of fitting holes. The press-in fitting device for assembling an air bearing comprises a mold frame, a loading assembly disposed on the mold frame, a fastening assembly disposed on one side of the loading assembly, and a press-fitting assembly disposed on the mold frame. The press-in fitting device for assembling an air bearing achieves the loading operation of the air bearing during the closing process of the lower and upper mold bases through the cooperation between the oblique and straight grooves on the push-pull block and the rotating shaft, thereby enabling the press-fitting operation to be completed smoothly. The fastening assembly can ensure the free loading and unloading of the air bearing under a relatively small preload force, and further compress the spring in the closed mold state, thereby further pressing and fixing the air bearing to achieve precise positioning.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing manufacturing, in particular to a press-in embedding device for assembling air bearings. Background Art

[0002] An air bearing refers to a sliding bearing that uses gas as a lubricant. The principle is that air enters the throttle through the air passage of the base. After throttling, a hard and stable air film forms on the working surface, thereby achieving gas lubrication. The throttle must fit tightly into the groove of the base, so a device is required to press-fit the throttle into the air bearing. For example, Chinese patent CN202010685424.1 discloses a press-fit device that includes: a base assembly having a sliding mechanism; a key base plate slidably mounted on the sliding mechanism, and having multiple tooling positioning structures disposed on the key base plate; and a press suitable for press-riveting or press-fitting workpieces on the key base plate. This device can secure multiple workpieces and molds to the key base plate. By sliding the key base plate, the workpiece corresponding to the press is press-riveted or press-fitted. However, it cannot automatically load the workpieces during the press-fitting process, which does not improve work efficiency. Furthermore, the device has only one press and cannot simultaneously press-fit multiple mounting holes on the air bearing. Summary of the Invention

[0003] In view of this, the present invention provides a press-in mounting device for assembling an air bearing to solve the above-mentioned problem.

[0004] A press-fit device for assembling an air bearing is used to press-fit several throttles into an air bearing having several mounting holes. The press-fit device comprises a mold frame, a loading assembly mounted on the mold frame, a fastening assembly mounted on one side of the loading assembly, and a press-fit assembly mounted on the mold frame. The mold frame comprises a lower mold base, an upper mold base mounted on one side of the lower mold base, and at least two push-pull blocks fixedly mounted on one side of the upper mold base. The loading assembly comprises a rotating shaft movably mounted on the push-pull block, a first push-pull rod mounted in the middle of the rotating shaft, and at least two second push-pull rods mounted on either side of the first push-pull rod. The upper mold base is fixedly connected to the push-pull block via a screw. The push-pull block has an inclined slot formed in it, and the distance between the end of the inclined slot near the lower mold base and the lower mold base is smaller than the distance between the end of the inclined slot near the upper mold base and the upper mold base. The rotating shaft is movably provided in the inclined groove, and a concave-shaped limiting block is fixedly provided on one side of the lower die base close to the feeding assembly, and the first and second push-pull rods are movably provided in the limiting block.

[0005] Furthermore, the limiting block is provided with a press-fitting chamber, an entrance of the press-fitting chamber is provided with a chamfer, and the press-fitting chamber can just accommodate one of the air bearings.

[0006] Furthermore, in the mold opening state, the rotating shaft is located at one end of the inclined slot close to the lower mold base.

[0007] Furthermore, in the mold closing state, the upper mold base approaches the lower mold base, and the rotating shaft moves relative to the inclined groove in a direction away from the lower mold base.

[0008] Furthermore, the fastening assembly includes a connecting plate, at least two bolts movably provided on the connecting plate, a fastening block fixedly provided on one end of the bolt away from the connecting plate, and at least two springs respectively sleeved on the two bolts.

[0009] Furthermore, one end of the bolt protruding from the connecting plate is located on the side of the connecting plate facing the limit block, the fastening block corresponds to the limit block, one end of the spring abuts against the connecting plate, and the other end abuts against the fastening block.

[0010] Furthermore, the pressing assembly includes an upper clamping plate arranged on the upper mold base, at least two guide columns arranged on the upper clamping plate, at least one pressure column arranged on one side of the guide column, a guide plate fixedly arranged on the lower mold base, and a partition plate arranged on one side of the guide plate.

[0011] Furthermore, at least one guide hole is formed on the guide plate, and the diameter of the guide hole is larger than the outer diameter of the throttle.

[0012] Furthermore, the partition is fixed on the first push-pull rod, and the surface of the partition away from the push-pull block is flush with the surface of the first push-pull rod away from the push-pull block, and the surface of the partition facing the guide plate is flush with the upper surface of the air bearing placed in the mold.

[0013] Compared with the prior art, the press-in and embedding device for assembling air bearings provided by the present invention realizes the loading operation of the air bearing during the closing process of the lower and upper mold bases through the cooperation between the oblique and straight grooves on the push-pull block and the rotating shaft, so that it can smoothly complete the press-fitting operation. The fastening assembly can ensure the free loading and unloading of the air bearing under a small preload force, and further compress the spring in the closed mold state, thereby further pressing and fixing the air bearing to achieve precise positioning. The mold can design the number and position of the guide holes and the pressure columns on the guide plate according to the number and position of the embedding holes on the air bearing, thereby realizing the operation of press-fitting multiple throttles into the air bearing at one time, greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view of the press-in embedding device for air bearing assembly provided by the present invention in the mold-opening state.

[0015] Figure 2 Schematic diagram of the cross section of the air bearing and throttle.

[0016] Figure 3 for Figure 1 A schematic structural diagram of a limit block of a press-fit device for assembling an air bearing.

[0017] Figure 4 for Figure 1 A top view of the press-fit device for air bearing assembly, with the upper die holder and press-fit components removed.

[0018] Figure 5 for Figure 1 A cross-sectional view of the press-fit device for air bearing assembly in the molded state. DETAILED DESCRIPTION

[0019] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the scope of protection of the present invention.

[0020] like Figure 1 , which is a cross-sectional view of the press-in device for air bearing assembly provided by the present invention in the mold-open state. The press-in device for air bearing assembly includes a mold frame 10, a loading assembly 20 disposed on the mold frame 10, a fastening assembly 30 disposed on one side of the loading assembly 20, and a press-fit assembly 40 disposed on the mold frame 10. It is conceivable that the press-in device for air bearing assembly also includes other functional modules, such as a power module, a screw module, etc., which are well known to those skilled in the art and will not be described in detail here.

[0021] Please also refer to Figures 2 to 5 The press-fitting device for assembling an air bearing is used to press-fit a plurality of throttles 50 into an air bearing 60. The air bearing 60 has a plurality of embedding holes 61, and the throttles 50 are arranged in an interference fit with the embedding holes 61.

[0022] The mold frame 10 includes a lower mold base 11 , an upper mold base 12 disposed on one side of the lower mold base 11 , and at least two push-pull blocks 13 fixedly disposed on one side of the upper mold base 12 .

[0023] A limiting block 14 is fixedly provided on one side of the lower die base 11 close to the loading assembly 20, and part of the loading assembly 20 passes through the limiting block 14. The specific penetration of the limited part of the loading assembly 20 will be described below.

[0024] The stop block 14 is generally concave in shape, and a portion of the press-fit assembly 40 is mounted on the stop block 14. Thus, a press-fit chamber 15 is formed between the stop block 14, the lower die base 11, and a portion of the press-fit assembly 40. The entrance to the press-fit chamber 15 is chamfered, and the press-fit chamber 15 can precisely accommodate one air bearing 60. Consequently, after the air bearing 60 enters the press-fit chamber 15 driven by the loading assembly 20, it is held in place by the lower die base 11, the stop block 14, a portion of the fastening assembly 30, and a portion of the press-fit assembly 40, thereby securing the air bearing 60 and improving press-fit accuracy.

[0025] At least two mounting holes 16 are respectively provided on the lower mold base 11 and the limit block 14, and guide sleeves are installed in the mounting holes 16. The guide sleeves in the two mounting holes 16 cooperate with part of the press-fitting assembly 40 to achieve the guiding function during the mold closing operation of the lower and upper mold bases 11 and 12. The specific cooperation between the mounting holes 16 and the press-fitting assembly 40 will be described below.

[0026] The upper mold base 12 is fixedly connected to the push-pull block 13 by a screw. The press-fitting assembly 40 is fixedly provided on the side of the upper mold base 12 facing the lower mold base 11. In this way, by closing the lower and upper mold bases 11 and 12, the press-fitting assembly 40 presses the throttle 50 into the air bearing 60. The specific press-fitting operation will be described below.

[0027] The push-pull block 13 is provided with an inclined slot 17. The distance between the end of the inclined slot 17 near the lower die base 11 and the lower die base 11 is smaller than the distance between the end of the inclined slot 17 near the upper die base 12 and the upper die base 12. In this way, the inclined slot 17 cooperates with the feeding assembly 20 to feed the air bearing 60 to the press-fit position. The specific cooperation will be described below.

[0028] The loading assembly 20 includes a rotating shaft 21 movably arranged on the push-pull block 13 , a first push-pull rod 22 arranged in the middle section of the rotating shaft 21 , and at least two second push-pull rods 23 arranged on both sides of the first push-pull rod 22 .

[0029] The rotating shaft 21 is movably inserted into the inclined groove 17, and the first and second push-pull rods 22 and 23 are fixedly installed on the rotating shaft 21, so that they can be regarded as a whole and move synchronously. The first and second push-pull rods 22 and 23 are movably inserted into the limit block 14 on the lower mold base 11, and the first push-pull rod 22 is pressed by part of the press-fit assembly 40, so that the first and second push-pull rods 22 and 23 can only move horizontally relative to the lower mold base 11. One end of the second push-pull rod 23 is fixedly installed on the rotating shaft 21, and the other end is fixedly connected to the fastening assembly 30. In this way, after the air bearing 60 is fixedly clamped, the first push-pull rod 22 and the fastening assembly 30 can move synchronously, thereby moving the air bearing 60. The specific situation of the fastening assembly 30 clamping the air bearing 60 will be explained below.

[0030] When the mold is in the open state, the rotating shaft 21 is located at one end of the inclined groove 17 close to the lower mold base 11. In this way, when the mold is closed, the press is pressed down, so that the upper mold base 12 and the push-pull block 13 move toward the lower mold base 11, and the rotating shaft 21 moves relative to the inclined groove 17 toward the upper mold base 12. However, since the first and second push-pull rods 22 and 23 are limited by the limit block 14, they can only move horizontally relative to the lower mold base 11 and away from the lower mold base 11, thereby driving the fastening assembly 30 to move toward the push-pull block 13, so that the clamped air bearing 60 reaches the press-fitting position, that is, the side surface of the clamped air bearing 60 facing the push-pull block 13 abuts against the limit block 14.

[0031] The fastening assembly 30 includes a connecting plate 31, at least two bolts 32 movably inserted into the connecting plate 31, a fastening block 33 fixedly disposed at one end of the bolts 32 away from the connecting plate 31, and at least two springs 34 respectively sleeved on the two bolts 32.

[0032] The connecting plate 31 is fixedly disposed on the second push-pull rod 23 , so that the connecting plate 31 can move synchronously with the second push-pull rod 23 .

[0033] One end of the bolt 32 protrudes from the connecting plate 31 and is located on the side of the connecting plate 31 facing the loading assembly 20. One end of the spring 34 abuts the connecting plate 32, and the other end abuts the fastening block 33, thereby pushing the fastening block 33 to expand the distance between the fastening block 33 and the first push-pull rod 22 to facilitate the insertion of the air bearing 60. After pushing the fastening block 33, the spring 34 is compressed and stores elastic potential energy. After slowly loosening the fastening block 33, the elastic potential energy of the spring 34 is released, thereby clamping the air bearing 60 between the first push-pull rod 22 and the fastening block 33. In this way, under the action of the loading assembly 20, the air bearing 60 is pushed into the press-fit position.

[0034] After the air bearing 60 reaches the press-fitting position, the upper die base 12 continues to move toward the lower die base 11, and the rotating shaft 21 continues to move in the inclined slot 17. However, since the side surface of the air bearing 60 facing the push-pull block 13 has already abutted against the limit block 14, the first push-pull rod 22 is moved away from the surface of the air bearing 60. The second push-pull rod 23 drives the fastening block 33 to continue moving toward the push-pull block 13, so that the spring 34 is further compressed, thereby further pressing and fixing the air bearing 60 to achieve precise positioning. When the air bearing 60 reaches the press-fitting position, during the movement of the upper die base 12, the air bearing 60 remains stationary relative to the lower die base 11, so that under the action of the press-fitting assembly 40, the throttle 50 is press-fitted into the air bearing 60. The specific operation of the press-fitting assembly 40 will be described below.

[0035] The press-fitting assembly 40 includes an upper clamping plate 41 arranged on the upper mold base 12, at least two guide columns 42 arranged on the upper clamping plate 41, at least one pressure column 43 arranged on one side of the guide column 42, a guide plate 44 fixedly arranged on the limit block 14, and a partition 45 arranged between the guide plate 44 and the limit block 14.

[0036] After the air bearing 60 reaches the press-fitting position, the guide post 42 corresponds to the guide sleeve in the mounting hole 16 on the lower mold base 11 , thereby guiding the lower and upper mold bases 11 , 12 in the subsequent mold closing operation.

[0037] The guide plate 44 defines at least one guide hole 46, the diameter of which is larger than the outer diameter of the restrictor 50. The guide hole 46 corresponds to the pressure pin 43. After the air bearing 60 reaches the press-fit position, the guide hole 46 corresponds to the insertion hole 61 of the air bearing 60. During the subsequent mold closing operation, the pressure pin 43 presses the restrictor 50 into the insertion hole 61, completing the press-fit operation.

[0038] The partition plate 45 is fixed to the first push-pull rod 22. The surface of the partition plate 45 facing away from the push-pull block 13 is flush with the surface of the first push-pull rod 22 facing away from the push-pull block 13. The surface of the partition plate 45 facing the guide plate 44 is flush with the upper surface of the air bearing 60 placed in the mold, or the partition plate 45 is slightly higher than the upper surface of the air bearing 60. In this way, when the air bearing 60 has not reached the press-fit position, the throttle 50 in the guide hole 46 is supported by the partition plate 45, preventing it from falling out of the guide hole 46. When the partition plate 45 leaves the guide hole 46, the throttle 50 transfers from the partition plate 45 to the air bearing 60. Finally, when the air bearing 60 reaches the press-fit position, it lands on the insertion hole 61. The pressure column 43 presses the throttle 50 into the insertion hole 61.

[0039] Compared with the prior art, the press-in device for assembling air bearings provided by the present invention achieves the loading of the air bearing 60 during the closing process of the lower and upper mold bases 11 and 12 by cooperating between the oblique and straight grooves 15 and 16 on the push-pull block 13 and the rotating shaft 21, thereby enabling the smooth completion of the press-fitting operation. The fastening assembly 30 can ensure the free loading and unloading of the air bearing 60 under a relatively small preload force, and further compresses the spring 34 in the closing state, thereby further pressing and fixing the air bearing 60 to achieve precise positioning. The mold can design the number and position of the guide holes 46 and the pressure columns 43 on the guide plate 44 according to the number and position of the embedding holes on the air bearing 60, thereby achieving the operation of press-fitting multiple throttles 50 into the air bearing 60 at one time, greatly improving work efficiency.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A press-in inserting device for assembling an air bearing, which is used to press-fit a plurality of throttles into an air bearing, wherein the air bearing has a plurality of inserting holes. The press-in inserting device for assembling an air bearing is characterized in that: the press-in inserting device for assembling an air bearing comprises a mold frame, a feeding assembly arranged on the mold frame, a fastening assembly arranged on one side of the feeding assembly, and a press-fitting assembly arranged on the mold frame, wherein the mold frame comprises a lower mold base, an upper mold base arranged on one side of the lower mold base, and at least two push-pull blocks fixedly arranged on one side of the upper mold base, and the feeding assembly comprises a A rotating shaft movably arranged on the push-pull block, a first push-pull rod arranged in the middle section of the rotating shaft, and at least two second push-pull rods arranged on both sides of the first push-pull rod, the upper mold base is fixedly connected to the push-pull block by a screw, and an inclined groove is provided on the push-pull block, and the distance between the end of the inclined groove close to the lower mold base and the lower mold base is smaller than the distance between the end of the inclined groove close to the upper mold base and the upper mold base, the rotating shaft movably passes through the inclined groove, and a limit block in a concave shape is fixedly provided on the side of the lower mold base close to the feeding assembly, and the first and second push-pull rods movably pass through the limit block.

2. The press-in mounting device for assembling an air bearing according to claim 1, wherein: The limiting block is provided with a press-fitting chamber, an entrance of which is provided with a chamfer, and the press-fitting chamber can just accommodate one of the air bearings.

3. The press-fitting device for assembling an air bearing according to claim 1, wherein: In the mold opening state, the rotating shaft is located at one end of the inclined slot close to the lower mold base.

4. The press-fitting device for assembling an air bearing according to claim 1, wherein: In the mold closing state, the upper mold base approaches the lower mold base, and the rotating shaft moves relative to the inclined groove in a direction away from the lower mold base.

5. The press-fitting device for assembling an air bearing according to claim 1, wherein: The fastening assembly includes a connecting plate, at least two bolts movably provided on the connecting plate, a fastening block fixedly provided on one end of the bolt away from the connecting plate, and at least two springs respectively sleeved on the two bolts.

6. The press-fitting device for assembling an air bearing according to claim 5, wherein: One end of the bolt protruding from the connecting plate is located on the side of the connecting plate facing the limit block, the fastening block corresponds to the limit block, one end of the spring abuts against the connecting plate, and the other end abuts against the fastening block.

7. The press-fitting device for assembling an air bearing according to claim 1, wherein: The press-fitting assembly includes an upper clamping plate arranged on the upper mold base, at least two guide columns arranged on the upper clamping plate, at least one pressure column arranged on one side of the guide column, a guide plate fixedly arranged on the lower mold base, and a partition plate arranged on one side of the guide plate.

8. The press-fitting device for assembling an air bearing according to claim 7, wherein: At least one guide hole is formed on the guide plate, and the diameter of the guide hole is larger than the outer diameter of the throttle.

9. The press-fitting device for assembling an air bearing according to claim 7, wherein: The partition is fixed on the first push-pull rod, and the surface of the partition away from the push-pull block is flush with the surface of the first push-pull rod away from the push-pull block. The surface of the partition facing the guide plate is flush with the upper surface of the air bearing placed in the mold.

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