Coaxial assembly jig

Abstract

The utility model relates to the technical field of coaxial assembly jigs, in particular to a coaxial assembly jig which comprises a base and an installation seat and is used for assembling a shaft seat and an assembly shaft, an air cylinder is installed on the surface of the upper end of the installation seat, the bottom end of the air cylinder penetrates through the installation seat, and a lower pressing head is fixedly connected to the bottom end of the air cylinder. A limiting mechanism is arranged at the position, close to the middle, of the surface of the upper end of the base, and a bearing plate is connected to the surface of the upper end of the base in a sliding mode. And the operation of assembling the multiple sets of shaft seats and the assembling shafts can be continuously carried out, the next set of shaft seats and the assembling shafts do not need to be assembled after the shaft seats and the assembling shafts are taken out, time is saved, the working efficiency is effectively improved, and the situation that when the rear bearing plate moves to drive the shaft seats to transmit, toppling occurs, and the assembling operation is affected can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of coaxial assembly fixture technology, specifically a coaxial assembly fixture. Background Technology

[0002] A coaxial assembly fixture is a tool used to fix and assemble coaxial connectors. It is mainly used to ensure the precise alignment and fixation of the connectors during the assembly process. It uses a series of mechanical structures to firmly fix the connectors on the fixture to ensure their stability and accuracy during the assembly process.

[0003] In the prior art, such as the auxiliary assembly fixture for ensuring coaxiality proposed in patent application number "CN202220080547.7", the assembly fixture of this utility model has a simple structure. It uses a fixing device to fix the workpiece and a transmission device to drive the workpiece to move. It mainly uses a lead screw to drive the slider to move on the slide rail, thereby ensuring the coaxiality of the workpiece during the assembly process.

[0004] However, in the aforementioned patent application, when assembling the bearing seat and the assembly shaft, the bearing seat with the pre-inserted assembly shaft is placed in a fixture, and the assembly shaft is pressed down by the pressure head in the fixture to make the assembly shaft and the bearing seat coaxially assembled. However, the existing fixture cannot conveniently limit the fixture, and it is easy to deviate when pressed down by the pressure head, which affects the assembly accuracy. In addition, it is necessary to wait for the assembled bearing seat and assembly shaft to be removed before assembling the next set of bearing seats and assembly shafts, which makes it time-consuming when assembling multiple sets of bearing seats and assembly shafts, affecting the assembly efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a coaxial assembly fixture to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A coaxial assembly fixture includes a base and a mounting seat for assembling a shaft seat and an assembly shaft. A cylinder is mounted on the upper surface of the mounting seat, and the bottom end of the cylinder passes through the mounting seat. A pressing head is fixedly connected to the bottom end of the cylinder. A limit mechanism is provided near the middle of the upper surface of the base. A bearing plate is slidably connected to the upper surface of the base. Two auxiliary mechanisms are provided on both sides of the upper surface of the base near the bearing plate. Several circular placement grooves are opened on the upper surface of the bearing plate.

[0008] The limiting mechanism includes a U-shaped mounting plate, two racks and two sliding plates. The U-shaped mounting plate is fixedly installed at the top inside the base. The two racks are slidably connected to the top inside the base. The two sliding plates are slidably connected to the upper surface of the base. A semi-circular clamp is fixedly connected to one end of each sliding plate.

[0009] Preferably, the ends of the two slide plates away from the semi-circular clamp are respectively fixedly connected to the two racks, and the bottom of the U-shaped mounting plate is rotatably connected to a gear through a shaft, and the gear is meshed with the two racks.

[0010] Preferably, a motor is mounted on the bottom surface of the U-shaped mounting plate, and the output end of the motor is connected to a gear. An L-shaped support plate is fixedly connected to the upper surface of each of the two semi-circular clamps. A limit clamp is fixedly connected to one end of each of the two L-shaped support plates. A number of ball bearings are installed on the inner wall of each of the two limit clamps.

[0011] Preferably, the auxiliary mechanism includes a mounting shell, which is fixedly mounted on the upper surface of the base. Two rotating shafts are rotatably connected inside the mounting shell, and a transmission belt is sleeved between the two rotating shafts. Two motors are mounted on the upper surface of the mounting shell near both ends, and the output ends of the two motors are respectively connected to the two rotating shafts.

[0012] Preferably, a sliding plate is slidably connected to the outer wall of the mounting housing, and one end of the sliding plate is fixedly connected to the transmission belt, while the other end of the sliding plate is fixedly connected to the bearing plate.

[0013] Preferably, a fixing plate is fixedly connected to the upper surface of the mounting shell, a back plate is fixedly connected to one end of the fixing plate, two connecting plates are movably installed on the side of the back plate away from the fixing plate, a plurality of telescopic push rods are installed between the connecting plates and the back plate, and springs are sleeved on the outside of the plurality of telescopic push rods. A plurality of limiting rollers are rotatably connected between the two connecting plates through a shaft.

[0014] Preferably, a limiting post is inserted into the upper surface of the mounting base, a connecting plate is fixedly connected to the outer wall of the cylinder near the lower pressure head, and the connecting plate is fixedly connected to the limiting post. Support posts are fixedly installed on the upper surface of the base near the four corners, and the upper ends of several support posts are fixedly connected to the mounting base.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model uses a motor and gears to drive two sliding plates to slide, so that the two semi-circular clamping plates move closer to each other, which can clamp and fix the shaft seat to be assembled. At the same time, the two L-shaped support plates move with the semi-circular clamping plates, which can drive the two limiting clamping plates to move closer to each other, so that the two limiting clamping plates clamp and limit the assembly shaft. This can effectively limit the position of the assembly shaft and the shaft seat to be assembled, and prevent the displacement during subsequent pressing assembly, which would affect the assembly accuracy.

[0017] 2. This utility model uses a motor and a rotating shaft to drive the sliding plate to move laterally, which can drive the bearing plate to slide on the upper surface of the base, and move the next shaft seat and assembly shaft to the position directly below the lower pressure head. It can also allow the assembled shaft seat and assembly shaft to be moved away from under the lower pressure head, and then the next set of shaft seats and assembly shafts can be assembled. This allows the assembly of multiple sets of shaft seats and assembly shafts to be carried out continuously without waiting to remove the shaft seats and assembly shafts before assembling the next set of shaft seats and assembly shafts, saving time and effectively improving work efficiency.

[0018] 3. In this utility model, the spring's rebound force can drive the connecting plate to move away from the back plate, allowing each limiting roller to be tightly attached to the outer wall of the shaft seat, thus limiting the position of each shaft seat to be assembled and preventing tilting when the subsequent bearing plate moves and drives the shaft seat transmission, which would affect the assembly operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional view of the base and mounting bracket in this utility model;

[0022] Figure 3 This is a structural schematic diagram of the rack and pinion and the U-shaped mounting plate in this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the gear and the semi-circular clamping plate in this utility model;

[0024] Figure 5 This is a cross-sectional view of the mounting shell in this utility model;

[0025] Figure 6 This is a schematic diagram of the telescopic push rod and sliding plate in this utility model.

[0026] The attached figures are labeled as follows:

[0027] 1. Base; 2. Mounting seat; 3. Cylinder; 4. Lower pressure head; 5. Bearing plate; 6. Circular placement groove; 7. Support column; 8. Semi-circular clamping plate; 9. Slide plate; 10. L-shaped support plate; 11. Limiting clamping plate; 12. Rack; 13. U-shaped mounting plate; 14. Gear; 15. Mounting shell; 16. Rotating shaft; 17. Transmission belt; 18. Back plate; 19. Connecting plate; 20. Telescopic push rod; 21. Limiting roller; 22. Sliding plate; 23. Fixing plate; 24. Shaft seat; 25. Assembly shaft; 26. Linking plate; 27. Limiting column. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] A coaxial assembly fixture, such as Figures 1-6 As shown, the assembly includes a base 1 and a mounting base 2 for assembling the shaft seat 24 and the assembly shaft 25. A cylinder 3 is mounted on the upper surface of the mounting base 2, and the bottom end of the cylinder 3 passes through the mounting base 2. A pressing head 4 is fixedly connected to the bottom end of the cylinder 3. A limiting mechanism is provided near the middle of the upper surface of the base 1. A bearing plate 5 is slidably connected to the upper surface of the base 1. Two auxiliary mechanisms are provided on both sides of the upper surface of the base 1 near the bearing plate 5. Several circular placement slots 6 are opened on the upper surface of the bearing plate 5. The limiting mechanism includes a U-shaped mounting plate 13, two racks 12 and two sliding plates 9. The U-shaped mounting plate 13 is fixedly installed at the top inside the base 1. The two racks 12 are slidably connected to the top inside the base 1. The two sliding plates 9 are slidably connected to the upper surface of the base 1. A semi-circular clamping plate 8 is fixedly connected to one end of each of the two sliding plates 9.

[0030] Two sliding plates 9 are fixedly connected to two racks 12 at their ends away from the semi-circular clamping plates 8. The bottom of the U-shaped mounting plate 13 is rotatably connected to a gear 14 via a shaft, and the gear 14 is meshed with the two racks 12. A motor is mounted on the bottom surface of the U-shaped mounting plate 13, and the output end of the motor is connected to the gear 14. L-shaped support plates 10 are fixedly connected to the upper surfaces of the two semi-circular clamping plates 8. A limiting clamping plate 11 is fixedly connected to one end of each of the two L-shaped support plates 10. Several balls are installed on the inner walls of the two limiting clamping plates 11. The balls can reduce the friction between the limiting clamping plate 11 and the assembly shaft 25, so that when the assembly shaft 25 is subjected to downward pressure, it can move down smoothly and be assembled on the bearing seat 24.

[0031] In use, first insert the assembly shaft 25 into the shaft seat 24, then place each shaft seat 24, after inserting the assembly shaft 25, into the respective circular placement slots 6 on the bearing plate 5. The shaft seat 24 in the central circular placement slot 6 is directly below the lower pressure head 4. At this time, the motor mounted on the bottom surface of the U-shaped mounting plate 13 drives the gear 14 to rotate, causing the two racks 12 to move laterally and in opposite directions, which can cause the two slide plates 9 to slide and move closer to each other. The two semi-circular clamping plates 8 follow the slide plates 9 and also move closer to each other, which can facilitate the assembly of the shaft seat 24. The assembly shaft 25 is clamped and fixed, and the two L-shaped support plates 10 move along with the semi-circular clamping plate 8, which can drive the two limiting clamping plates 11 to move closer to each other, so that the two limiting clamping plates 11 clamp and limit the assembly shaft 25. Each ball is in close contact with the outer wall, which can effectively limit the position of the assembly shaft 25 to be assembled and the shaft seat 24, so as to avoid displacement during subsequent pressing assembly and affect the assembly accuracy. After the limiting is completed, the cylinder 3 drives the pressing head 4 to move down, which can apply downward pressure to the assembly shaft 25, thereby pressing the assembly shaft 25 onto the shaft seat 24 to complete the coaxial assembly operation.

[0032] like Figures 5-6 As shown, the auxiliary mechanism includes a mounting shell 15, which is fixedly mounted on the upper surface of the base 1. Two rotating shafts 16 are rotatably connected inside the mounting shell 15. A transmission belt 17 is sleeved between the two rotating shafts 16. Motors 2 are mounted on the upper surface of the mounting shell 15 near both ends, and the output ends of the two motors 2 are respectively connected to the two rotating shafts 16.

[0033] A sliding plate 22 is slidably connected to the outer wall of the mounting housing 15, and one end of the sliding plate 22 is fixedly connected to the transmission belt 17, while the other end of the sliding plate 22 is fixedly connected to the bearing plate 5.

[0034] A fixing plate 23 is fixedly connected to the upper surface of the mounting shell 15. A back plate 18 is fixedly connected to one end of the fixing plate 23. Two connecting plates 19 are movably installed on the side of the back plate 18 away from the fixing plate 23. Several telescopic push rods 20 are installed between the connecting plates 19 and the back plate 18. Springs are sleeved on the outside of each telescopic push rod 20. Several limiting rollers 21 are rotatably connected between the two connecting plates 19 through a shaft. The limiting rollers 21 can reduce the friction with the transmission shaft seat 24, so that the shaft seat 24 can be smoothly transmitted.

[0035] A limiting post 27 is inserted into the upper surface of the mounting base 2. A connecting plate 26 is fixedly connected to the outer wall of the cylinder 3 near the end of the lower pressure head 4, and the connecting plate 26 is fixedly connected to the limiting post 27. Support posts 7 are fixedly installed on the upper surface of the base 1 near the four corners, and the upper ends of several support posts 7 are fixedly connected to the mounting base 2. When the lower pressure head 4 moves down, the connecting plate 26 moves down at the same time, and the limiting post 27 moves down with the connecting plate 26, which can help limit the downward position of the lower pressure head 4 and prevent it from deviating.

[0036] Specifically, after the assembly of the bearing seat 24 and the assembly shaft 25 located in the middle position is completed, the motor is reversed, which similarly causes the two semi-circular clamps 8 to move away from each other, releasing the clamping and fixing of the bearing seat 24. At this time, the motor causes each rotating shaft 16 installed in the mounting housing 15 to rotate, driving the transmission belt 17 to drive the sliding plate 22 to move laterally, thereby driving the bearing plate 5 to slide on the upper surface of the base 1, driving the next bearing seat 24 and assembly shaft 25 to move to the position directly below the lower pressure head 4, and allowing the assembled bearing seat 24 and assembly shaft 25 to be moved away from below the lower pressure head 4. Then, the next set of bearing seats 24 and assembly shaft 25 is assembled. At the same time, the workers can take out the assembled bearing seats 24 and assembly shaft 25, so that the assembly operation of multiple sets of bearing seats 24 and assembly shaft 25 can be carried out continuously without waiting to take out the bearing seats 24 and assembly shaft 25 before assembling the next set of bearing seats 24 and assembly shaft 25, saving time and effectively improving work efficiency.

[0037] When each of the bearing seats 24 to be assembled is placed into the respective circular placement slots 6, the bearing seat 24 is positioned between the two auxiliary mechanisms and between the respective limiting rollers 21 of the two auxiliary mechanisms. This allows the two sets of limiting rollers 21 to move away from each other, which can drive the connecting plate 19 to move closer to the back plate 18. This causes the telescopic push rod 20 to shorten and the spring to compress. After placement, under the action of the spring's rebound force, the connecting plate 19 can be moved away from the back plate 18, and the telescopic push rod 20 can be extended. This allows each limiting roller 21 to be tightly attached to the outer wall of the bearing seat 24, limiting the bearing seats 24 to be assembled and preventing them from tipping over when the bearing plate 5 moves to drive the bearing seat 24, thus affecting the assembly operation.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A coaxial assembly jig comprising a base (1) and a mounting seat (2) for assembling a shaft seat (24) and an assembly shaft (25), characterized in that, A cylinder (3) is installed on the upper surface of the mounting base (2), and the bottom end of the cylinder (3) passes through the mounting base (2). A pressing head (4) is fixedly connected to the bottom end of the cylinder (3). A limiting mechanism is provided near the middle position on the upper surface of the base (1). A bearing plate (5) is slidably connected to the upper surface of the base (1). Two auxiliary mechanisms are provided on both sides of the upper surface of the base (1) near the bearing plate (5). Several circular placement grooves (6) are opened on the upper surface of the bearing plate (5). The limiting mechanism includes a U-shaped mounting plate (13), two racks (12) and two sliding plates (9). The U-shaped mounting plate (13) is fixedly installed at the top inside the base (1). The two racks (12) are slidably connected at the top inside the base (1). The two sliding plates (9) are slidably connected to the upper surface of the base (1). A semi-circular clamp (8) is fixedly connected to one end of each of the two sliding plates (9).

2. The coaxial assembly fixture of claim 1, wherein, The two slide plates (9) are fixedly connected to the two racks (12) at the ends away from the semi-circular clamp (8). The bottom of the U-shaped mounting plate (13) is rotatably connected to a gear (14) through a shaft, and the gear (14) is meshed with the two racks (12).

3. The coaxial assembly fixture of claim 2, wherein, The bottom surface of the U-shaped mounting plate (13) is equipped with a motor, and the output end of the motor is connected to the gear (14). The upper surfaces of the two semi-circular clamps (8) are fixedly connected with L-shaped support plates (10). One end of each of the two L-shaped support plates (10) is fixedly connected with a limiting clamp (11). The inner walls of the two limiting clamps (11) are equipped with several balls.

4. The coaxial assembly fixture of claim 1, wherein, The auxiliary mechanism includes a mounting shell (15), which is fixedly mounted on the upper surface of the base (1). Two rotating shafts (16) are rotatably connected inside the mounting shell (15), and a transmission belt (17) is sleeved between the two rotating shafts (16). Two motors are installed on the upper surface of the mounting shell (15) near both ends, and the output ends of the two motors are respectively connected to the two rotating shafts (16).

5. The coaxial assembly fixture of claim 4, wherein, The outer wall of the mounting housing (15) is slidably connected to a sliding plate (22), and one end of the sliding plate (22) is fixedly connected to the transmission belt (17), and the other end of the sliding plate (22) is fixedly connected to the bearing plate (5).

6. The coaxial assembly fixture of claim 4, wherein, A fixing plate (23) is fixedly connected to the upper surface of the mounting shell (15). A back plate (18) is fixedly connected to one end of the fixing plate (23). Two connecting plates (19) are movably installed on the side of the back plate (18) away from the fixing plate (23). Several telescopic push rods (20) are installed between the connecting plate (19) and the back plate (18). Springs are sleeved on the outside of the several telescopic push rods (20). Several limiting rollers (21) are rotatably connected between the two connecting plates (19) through a shaft.

7. The coaxial assembly fixture of claim 1, wherein, A limiting post (27) is inserted into the upper surface of the mounting base (2). A connecting plate (26) is fixedly connected to the outer wall of the cylinder (3) near the end of the lower pressure head (4). The connecting plate (26) is fixedly connected to the limiting post (27). Supporting posts (7) are fixedly installed on the upper surface of the base (1) near the four corners. The upper ends of several supporting posts (7) are fixedly connected to the mounting base (2).

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