Press fitting equipment for upper shaft and lower shaft

Abstract

The utility model discloses upper and lower shaft press fitting equipment which comprises a workbench, a circular truncated cone and a pressing assembly are installed on the workbench, an extrusion plate is installed on the pressing assembly, and the extrusion plate is matched with the circular truncated cone. When a lower workpiece is placed on a round table, a servo motor is used for driving a moving rod to move towards the middle, and the moving rod drives a friction cushion on a transmission plate to approach the lower workpiece, so that the lower workpiece can be conveniently fixed to the center position of the round table, and the situation that the lower workpiece deviates in the round table due to vibration generated when the pressing assembly is used is avoided; and meanwhile, the buffer spring is arranged, so that the friction cushion can be slowly in contact with the outer surface of the lower workpiece, and the situation that the outer surface of the lower workpiece is easily damaged due to the fact that the contact is too fast and the force is too large is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting, in particular to upper and lower shaft press-fitting equipment. Background Art

[0002] In the prior art, the patent with announcement number CN220944014U discloses an upper and lower shaft pressing device, including a workbench and a first extrusion plate, the outer wall of the workbench is fixedly connected with multiple sliding rods, the first extrusion plate is located at the top of the workbench, and the multiple sliding rods movably pass through the first extrusion plate, the outer wall of the multiple sliding rods is sleeved with springs, one end of the multiple springs is in conflict with the top surface of the workbench, and the other end of the multiple springs is in conflict with the bottom end surface of the first extrusion plate, and the outer wall of the first extrusion plate is provided with a circular groove, the first extrusion plate is located in the circular groove and a first fixed seat is provided, the top of the first extrusion plate is provided with a second extrusion plate, the top ends of the multiple sliding rods are slidably connected to the bottom end surface of the second extrusion plate, the lower surface of the second extrusion plate is fixedly connected with a disc, and the outer wall of the disc is fixedly connected with a press. The utility model can improve the positioning accuracy of the upper and lower shaft pressing, thereby avoiding damage caused by misalignment of the upper and lower shafts, and improving the efficiency of the pressing device.

[0003] During actual use, although the above-mentioned equipment can perform press-fitting processing very well, the workpiece is placed on the second fixed seat, but the existing second fixed seat is not provided with any structure for clamping and fixing the workpiece. Therefore, when the upper workpiece is pressed onto the lower workpiece, it is easy for the vibration generated by the operation of the equipment to cause the position of the lower workpiece to shift, so that the upper workpiece cannot be accurately pressed onto the lower workpiece, which leads to failure of workpiece processing. At the same time, there is no structure on the existing circular table that can assist in removing the processed workpiece. Therefore, after the workpiece is pressed, the staff needs to manually go to the second fixed seat to take it out. This operation not only wastes time, but also the speed of taking out the workpiece is relatively slow.

[0004] Therefore, a top and bottom shaft press-fitting device is proposed. Utility Model Content

[0005] The purpose of the present invention is to provide a device for pressing and assembling upper and lower shafts to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an upper and lower shaft pressing device, comprising a workbench, a circular table and a pressing assembly are installed on the workbench, an extrusion plate is installed on the pressing assembly, the extrusion plate is adapted to the circular table, a driving mechanism is installed on the driving mechanism, a retaining mechanism is installed on the circular table, a lifting mechanism is installed on the circular table, the retaining mechanism comprises two moving rods, both moving rods are slidably installed on the circular table, a movable plate is installed on the moving rod, a plurality of buffer springs are installed on the movable plate, a transmission plate is installed on the other end of the plurality of buffer springs, a friction pad is installed on the transmission plate, and the two friction pads are adapted to each other.

[0007] Preferably, a guide rod is sleeved on the buffer spring, one end of the guide rod is mounted on the transmission plate, and the other end of the guide rod is slidably mounted on the movable plate.

[0008] Preferably, the driving mechanism includes a support frame, which is installed on a workbench. A gear is rotatably installed on the support frame, and two L-shaped tooth plates are engaged with the gear. The two L-shaped tooth plates are respectively installed on two moving rods.

[0009] Preferably, a servo motor is installed on the workbench, a drive shaft is installed on the servo motor, and the top end of the drive shaft is installed on the gear.

[0010] Preferably, a T-shaped slot is provided on the L-shaped tooth plate, a T-shaped block is slidably mounted on the inner wall of the T-shaped slot, and the T-shaped block is mounted on the workbench.

[0011] Preferably, the lifting mechanism includes a mounting groove, the circular platform is provided with a mounting groove, a limiting shaft is slidably mounted on the inner wall of the mounting groove, and a support platform is mounted on the limiting shaft.

[0012] Preferably, a return spring is installed on the inner wall of the bottom side of the installation groove, and the other end of the return spring is installed on the bottom side of the limiting shaft.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The utility model, through the arrangement of structures such as a servo motor, gears, an L-shaped tooth plate, a buffer spring, a transmission plate and a friction pad, when the lower workpiece is placed on the circular table, the servo motor is used to drive the moving rod to move toward the middle, and the moving rod drives the friction pad on the transmission plate to approach the lower workpiece, so that the lower workpiece can be conveniently fixed in the center position of the circular table, avoiding vibration when the lower pressing component is used, causing the lower workpiece to shift in the circular table and unable to be pressed together with the upper workpiece, causing damage. At the same time, the buffer spring is used to enable the friction pad to slowly contact the outer surface of the lower workpiece, avoiding too fast and too strong contact, which can easily cause damage to the outer surface of the lower workpiece.

[0015] (2) The utility model, through the arrangement of structures such as a limit shaft, a support platform and a reset spring, after the upper and lower workpieces are pressed together, the elastic restoring force of the reset spring is used to drive the support platform on the limit shaft to move upward, and the support platform drives the pressed workpiece to move upward, and the pressed workpiece is pushed out from the circular table, so that it is convenient for the staff to take it away, avoiding the traditional method of taking away the pressed workpiece, which requires the staff to put their hands into the circular table, which not only wastes time but is also not convenient enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure of the driving mechanism and the retaining mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the return spring, limit shaft and support platform of the utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure of the gear, L-shaped tooth plate and T-shaped block of the utility model;

[0020] In the figure: 1. Workbench; 2. Round table; 3. Pressing assembly; 4. Extrusion plate; 5. Moving rod; 51. Movable plate; 52. Buffer spring; 53. Guide rod; 54. Transmission plate; 55. Friction pad; 6. Support frame; 61. Gear; 62. L-shaped tooth plate; 63. Servo motor; 64. Drive shaft; 65. T-slot; 66. T-block; 7. Mounting slot; 71. Limiting shaft; 72. Support table; 73. Reset spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Example 1: Please refer to Figure 1-4The utility model provides a technical solution: an upper and lower shaft pressing device, including a workbench 1, a round table 2 and a pressing component 3 are installed on the workbench 1, an extrusion plate 4 is installed on the pressing component 3, and the extrusion plate 4 is adapted to the round table 2. A driving mechanism is installed on the workbench 1, a retaining mechanism is installed on the driving mechanism, the retaining mechanism is installed on the round table 2, and a lifting mechanism is installed on the round table 2. The retaining mechanism includes two moving rods 5, and the two moving rods 5 are both slidably installed on the round table 2. A movable plate 51 is installed on the moving rod 5, and a plurality of buffer springs 52 are installed on the movable plate 51. A transmission plate 54 is installed on the other end of the plurality of buffer springs 52, and a friction pad 55 is installed on the transmission plate 54. Two friction pads The guide rod 53 is adapted to the workpiece 55, and the buffer spring 52 is sleeved on the guide rod 53. One end of the guide rod 53 is mounted on the transmission plate 54, and the other end of the guide rod 53 is slidably mounted on the movable plate 51. The movable plate 51 is driven to move by the movable rod 5, and the movable plate 51 drives the buffer spring 52 on the guide rod 53 to move, and the buffer spring 52 drives the transmission plate 54 to move, and the transmission plate 54 drives the friction pad 55 to approach the outer surface of the lower workpiece, so that the lower workpiece can be conveniently fixed in the center position of the frustum 2. At the same time, the setting of the buffer spring 52 can facilitate the fixation and buffering of the lower workpiece, and avoid the friction pad 55 from contacting the outer surface of the lower workpiece too quickly and with too much force, which can easily cause damage to the outer surface of the lower workpiece.

[0023] In order to facilitate the provision of power for the clamping of the lower workpiece, a driving mechanism is arranged, specifically including a support frame 6, which is installed on the workbench 1, and a gear 61 is rotatably installed on the support frame 6, and two L-shaped toothed plates 62 are meshed on the gear 61, and the two L-shaped toothed plates 62 are respectively installed on the two moving rods 5, and a servo motor 63 is installed on the servo motor 63. The top of the driving shaft 64 is installed on the gear 61, and a T-shaped slot 65 is provided on the L-shaped toothed plate 62. A T-shaped block 66 is slidably installed on the inner wall of the T-shaped slot 65, and the T-shaped block 66 is installed on the workbench 1. The servo motor 63 drives the driving shaft 64 to rotate, and the driving shaft 64 drives the gear 61 on the support frame 6 to rotate, and the gear 61 drives the L-shaped toothed plate 62 on the T-shaped block 66 to move, so that the L-shaped toothed plate 62 drives the moving rod 5 to move toward the middle, and then facilitates the friction pad 55 to move toward the middle to provide power to fix the lower workpiece in the center position of the circular table 2.

[0024] When the workpiece is lifted up, the locking cam 72 is released, and the locking cam 73 is in a state of being lifted and lowered, so that the workpiece can be lifted up and the locking cam 73 can be lifted up, thereby significantly shortening the workpiece.

[0025] The working principle is as follows: when using the pressing assembly 3 on the workbench 1 to press the workpiece, first place the lower workpiece on the round table 2, and then manually squeeze the lower workpiece downward. When the lower workpiece moves downward, the support table 72 moves downward, and the support table 72 drives the limit shaft 71 to move. The limit shaft 71 drives the return spring 73 in the installation slot 7 to be compressed, and then the switch on the servo motor 63 is started, and the servo motor 63 drives the drive shaft 64 to rotate. The drive shaft 64 drives the gear 61 on the support frame 6 to rotate, and the gear 61 drives the L-shaped tooth plate 62 on the T-block 66 to move. The L-shaped tooth plate 62 drives the moving rod 5 to move toward the middle, and the moving rod 5 drives the movable plate 51 to move. The movable plate 51 drives the buffer spring 52 on the guide rod 53 to move. The buffer spring 52 drives the transmission plate 54 to move, and the transmission plate 54 drives the friction soft The pad 55 approaches the outer surface of the lower workpiece, and then the gear 61 continues to drive the L-shaped tooth plate 62 to move, so that the L-shaped tooth plate 62 can slowly shrink, thereby slowly and firmly fixing the lower workpiece on the center of the circular table 2, and then start the switch on the lower pressing assembly 3, and use the lower pressing assembly 3 to drive the extrusion plate 4 to move downward, so as to facilitate the pressing of the upper workpiece onto the lower workpiece. After the two workpieces are pressed, the lower pressing assembly 3 and the extrusion plate 4 move upward, and the servo motor 63 is used to drive the two friction pads 55 to move to both sides. At the same time, under the action of the elastic restoring force of the reset spring 73, the limit shaft 71 can be driven to move upward, and the limit shaft 71 drives the support platform 72 to move upward, and the support platform 72 drives the pressed workpiece to move upward, so that the pressed workpiece can be easily ejected from the circular table 2, which is convenient for the staff to take.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for pressing an upper and lower shafts, comprising a workbench (1), a round table (2) and a pressing assembly (3) being mounted on the workbench (1), an extrusion plate (4) being mounted on the pressing assembly (3), the extrusion plate (4) being adapted to the round table (2), and characterized in that: The workbench (1) is provided with a driving mechanism, the driving mechanism is provided with a retaining mechanism, the retaining mechanism is provided with a truncated table (2), the truncated table (2) is provided with a lifting mechanism, the retaining mechanism comprises two moving rods (5), the two moving rods (5) are both slidably mounted on the truncated table (2), a movable plate (51) is provided on the moving rod (5), a plurality of buffer springs (52) are provided on the movable plate (51), a transmission plate (54) is provided on the other end of the plurality of buffer springs (52), a friction pad (55) is provided on the transmission plate (54), and the two friction pads (55) are adapted to each other.

2. The upper and lower shaft press-fitting device according to claim 1, characterized in that: A guide rod (53) is sleeved on the buffer spring (52), one end of the guide rod (53) is mounted on the transmission plate (54), and the other end of the guide rod (53) is slidably mounted on the movable plate (51).

3. The upper and lower shaft press-fitting device according to claim 1, characterized in that: The driving mechanism comprises a support frame (6), the support frame (6) being mounted on the workbench (1), a gear (61) being rotatably mounted on the support frame (6), two L-shaped toothed plates (62) being meshed on the gear (61), and the two L-shaped toothed plates (62) being respectively mounted on the two moving rods (5).

4. The upper and lower shaft press-fitting device according to claim 3, characterized in that: A servo motor (63) is installed on the workbench (1), a driving shaft (64) is installed on the servo motor (63), and the top end of the driving shaft (64) is installed on the gear (61).

5. The upper and lower shaft press-fitting device according to claim 3, characterized in that: The L-shaped tooth plate (62) is provided with a T-shaped slot (65), and a T-shaped block (66) is slidably mounted on the inner wall of the T-shaped slot (65), and the T-shaped block (66) is mounted on the workbench (1).

6. The upper and lower shaft press-fitting device according to claim 1, characterized in that: The lifting mechanism comprises a mounting groove (7), the circular table (2) is provided with a mounting groove (7), a limiting shaft (71) is slidably mounted on the inner wall of the mounting groove (7), and a supporting platform (72) is mounted on the limiting shaft (71).

7. The upper and lower shaft press-fitting device according to claim 6, characterized in that: A return spring (73) is installed on the inner wall of the bottom side of the installation groove (7), and the other end of the return spring (73) is installed on the bottom side of the limiting shaft (71).

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