A press-fitting system with a pressure monitoring module

Abstract

The present invention discloses a press-fitting system with a pressure monitoring module, including a press head assembly, which is driven to rise and fall by a driving device, and performs a press-fitting action when the press head assembly moves downward; a pressure sensor is arranged between the driving device and the press head assembly, and the pressure sensor corresponds to monitoring the downward pressure of the press head assembly; the pressure sensor is connected to a controller signal, and the controller can receive the pressure data obtained by the pressure sensor, and adjust the power output of the driving device according to the pressure data feedback. The driving device includes a telescopic cylinder, and a joint is arranged at the lower end of the output rod of the telescopic cylinder, and the joint is connected to a connecting seat; the upper end of the pressure sensor is fixed on the connecting seat, and the lower end of the pressure sensor is connected to the press head assembly. The present invention can monitor and control the pressure during the press-fitting process to improve the press-fitting quality of the product.

Description

Technical Field

[0001] The invention relates to the technical field of press-fitting mechanisms, and in particular to a press-fitting system with a pressure monitoring module. Background Art

[0002] In industrial production, many products need to be press-fitted, and for this purpose, a suitable press-fitting mechanism is required. During the press-fitting process, the pressure on the product is directly related to the quality of the product after molding, so the pressure applied by the press-fitting mechanism needs to be controlled. A press-fitting system with a pressure monitoring module is proposed. Summary of the invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides a press-fitting system with a pressure monitoring module, which can monitor and control the pressure during the press-fitting process to improve the press-fitting quality of the product.

[0004] Technical solution: To achieve the above-mentioned purpose, a pressing system with a pressure monitoring module of the present invention includes a pressing head assembly, which is driven to rise and fall by a driving device, and performs a pressing action when the pressing head assembly moves downward; a pressure sensor is arranged between the driving device and the pressing head assembly, and the pressure sensor corresponds to monitoring the downward pressure of the pressing head assembly; the pressure sensor is connected to the controller signal, and the controller can receive the pressure data obtained by the pressure sensor, and adjust the power output of the driving device according to the pressure data feedback.

[0005] Furthermore, the driving device includes a telescopic cylinder, a joint is provided at the lower end of the output rod of the telescopic cylinder, and the joint is connected to the connecting seat; the upper end of the pressure sensor is fixed on the connecting seat, and the lower end of the pressure sensor is connected to the pressure head assembly.

[0006] Furthermore, the telescopic cylinder is fixed on a mounting frame, and a guide assembly is provided between the mounting frame and the connecting seat, and the guide assembly guides the connecting seat so that the connecting seat can be movable and displaced along the telescopic direction of the telescopic cylinder.

[0007] Furthermore, the guide assembly includes a plurality of guide holes opened on the mounting frame, and a plurality of guide rods connected to the connecting seat; the connecting seat has a connecting cavity, the joint extends into the connecting cavity accordingly, and the joint and the connecting cavity are matched with each other in a clearance so that the joint can swing and adjust when the guide rods are not aligned.

[0008] Furthermore, the lower end surface of the joint is an arc-shaped surface, so that when the joint is swung and adjusted, the lower end surface of the joint can still maintain contact with the bottom of the connecting cavity.

[0009] Furthermore, a connecting groove is provided at the bottom of the connecting seat, the pressure sensor is fixedly connected to the connecting seat through a locking assembly, the top of the pressure sensor is correspondingly inserted into the connecting groove, and the shape of the top of the pressure sensor is consistent with the shape of the connecting groove.

[0010] Furthermore, a piston chamber is provided at the bottom of the connecting chamber, the lower part of the piston chamber is filled with hydraulic fluid, the upper part of the piston chamber is provided with a piston block, and the lower end of the joint abuts against the upper end of the piston block; the top of the pressure sensor is sealed with the side wall of the connecting groove, and a connecting hole is provided between the connecting groove and the piston chamber, and the hydraulic fluid can penetrate into between the top wall of the connecting groove and the top of the pressure sensor through the connecting hole, so that the joint can apply pressure to the pressure sensor through the piston block and the hydraulic fluid.

[0011] Furthermore, a rubber cap is sleeved on the top of the pressure sensor, and the top of the pressure sensor is sealed and matched with the side wall of the connecting groove through the rubber cap.

[0012] Furthermore, the upper end surface of the piston block is also an arc-shaped surface, and the curvature of the upper end surface of the piston block is smaller than the curvature of the lower end surface of the joint.

[0013] Furthermore, the pressure head assembly includes a connecting frame connected to the lower end of the pressure sensor, a turntable is provided on the connecting frame, and a plurality of pressure head installation positions are arranged on the turntable; the turntable is driven to rotate by a motor, the motor is connected to the controller signal, and the controller controls the motor to rotate a corresponding angle, so that the turntable rotates and switches to the downward pressure head installation position.

[0014] Beneficial effects: The press-fitting system with a pressure monitoring module of the present invention has the following beneficial effects:

[0015] 1) A pressure sensor is provided between the driving device and the pressing head assembly. The pressure sensor is used to monitor the pressing pressure of the pressing head assembly and transmit the monitoring data to the controller. The controller adjusts the power output of the driving device by feedback, thereby controlling the pressure to improve the pressing quality of the product.

[0016] 2) The joint applies pressure to the top of the pressure sensor through the piston block and the hydraulic fluid, so that the top of the pressure sensor is more evenly stressed, the pressure measurement accuracy is high, and it is conducive to accurately controlling the pressure of the pressure head assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a schematic diagram of the overall structure of the press-fitting system of the present invention;

[0018] Attached Figure 2 is a schematic diagram of the structure of the driving device;

[0019] Attached Figure 3 It is a structural schematic diagram of the pressure sensor;

[0020] Attached Figure 4 is a schematic diagram of the structure of the pressure head assembly;

[0021] Attached Figure 5 is a schematic diagram of the structure of the joint;

[0022] Attached Figure 6 Schematic diagram of the internal structure of the connecting socket. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] As attached Figures 1 to 6 The press-fitting system with a pressure monitoring module includes a press head assembly 1, which is driven to rise and fall by a driving device. When the press head assembly 1 moves downward, it performs a press-fitting action, and the press head assembly 1 presses against the product, so that the product is formed after being pressed. A pressure sensor 2 is arranged between the driving device and the press head assembly 1, and the pressure sensor 2 corresponds to monitoring the downward pressure of the press head assembly 1, so that the pressure applied to the product can be controlled. The pressure sensor 2 is connected to the controller signal, and the controller can receive the pressure data obtained by the pressure sensor 2. The controller is electrically connected to the driving device, and the controller can adjust the power output of the driving device according to the pressure data feedback. In the present invention, the pressure applied by the press head assembly 1 is monitored by setting the pressure sensor 2, and the controller feedback control is performed, so that the pressure applied to the product can be kept within a suitable range to control the quality of the product after press-fitting.

[0025] The driving device includes a telescopic cylinder 3, the output rod 4 of the telescopic cylinder 3 can be telescopically moved, and a joint 5 is provided at the lower end of the output rod 4, which is connected to a connecting seat 6. The upper end of the pressure sensor 2 is fixed on the connecting seat 6, and the lower end of the pressure sensor 2 is connected to the pressure head assembly 1. When the output rod 4 extends downward, the pressure head assembly 1 is driven downward through the joint 5, the connecting seat 6 and the pressure sensor 2. Figure 2 As shown in , specifically, the telescopic cylinder 3 is a precision ball screw electric cylinder driven by a servo motor, and the servo motor is electrically connected to the controller.

[0026] The telescopic cylinder 3 is fixed on the mounting frame 7. There is a guide component between the mounting frame 7 and the connecting seat 6. The guide component guides the connecting seat 6 so that the connecting seat 6 can move along the telescopic direction of the telescopic cylinder 3. The displacement direction of the connecting seat 6 is limited by the guide component.

[0027] The guide assembly includes a plurality of guide holes formed on the mounting frame 7 and a plurality of guide rods 8 connected to the connecting seat 6. The guide rods 8 are slidably matched with the guide holes. A flange type linear bearing 19 is installed on the mounting frame 7, and the center of the flange type linear bearing 19 is the guide hole. Figure 2As shown in the figure, there are two guide rods 8. In actual application, the two guide rods 8 may be uneven, causing the connecting seat 6 to be skewed. At this time, the output rod 4 of the telescopic cylinder 3 is unevenly stressed, which may easily cause damage to the output rod 4. Figure 5 As shown in , a connection cavity 9 is provided in the connection seat 6, and the joint 5 extends into the connection cavity 9 accordingly, and the joint 5 is stuck in the connection cavity 9, and the joint 5 and the connection cavity 9 are matched with each other in a clearance, so that the joint 5 can be swung and adjusted when the guide rods 8 are not aligned, so that the output rod 4 of the telescopic cylinder 3 can maintain uniform force and avoid damage to the output rod 4. Furthermore, the lower end surface of the joint 5 is an arc surface, so that when the joint 5 is swung and adjusted, the lower end surface of the joint 5 can still maintain contact with the bottom of the connection cavity 9, thereby making the output rod 4 evenly stressed.

[0028] The bottom of the connection seat 6 is provided with a connection groove 10, and the pressure sensor 2 is fixedly connected to the connection seat 6 through a locking assembly, and the top of the pressure sensor 2 is correspondingly inserted into the connection groove 10, and the shape of the top of the pressure sensor 2 is consistent with the shape of the connection groove 10. Figure 6 As shown in , the pressure sensor 2 is an S-shaped tension pressure sensor, and the top of the pressure sensor 2 is inserted into the connection groove 10, which can make the pressure on the top of the pressure sensor 2 more uniform, thereby making the pressure sensor 2 more accurate when measuring pressure. In one embodiment, the locking assembly includes a locking bolt 20 and a nut 12. The locking bolt 20 passes through the connection seat 6 and the pressure sensor 2 and is locked by the nut 12, thereby fixing the connection seat 6 and the pressure sensor 2 together.

[0029] The bottom of the connecting chamber 9 is provided with a piston chamber 11, the lower part of the piston chamber 11 is filled with hydraulic fluid, the upper part of the piston chamber 11 is provided with a piston block 13, and the lower end surface of the joint 5 abuts against the upper end surface of the piston block 13. The top of the pressure sensor 2 is sealed with the side wall of the connecting groove 10, a connecting hole 14 is provided between the connecting groove 10 and the piston chamber 11, and a certain gap is provided between the top of the pressure sensor 2 and the top wall of the connecting groove 10. The hydraulic fluid can penetrate into the space between the top wall of the connecting groove 10 and the top of the pressure sensor 2 through the connecting hole 14, so that the joint 5 can directly apply pressure to the pressure sensor 2 through the piston block 13 and the hydraulic fluid. Therefore, in the process of the connector 5 applying pressure to the pressure sensor 2, the connecting seat 6 no longer transmits the force between the connector 5 and the pressure sensor 2, but uses the piston block 13 and the hydraulic fluid as force transmitters. Therefore, when the guide rod 8 is not level, causing the connecting seat 6 to tilt, the top of the pressure sensor 2 is subjected to the pressure from the hydraulic fluid instead of the pressure from the connecting seat 6. Therefore, the top of the pressure sensor 2 can still maintain uniform force, so that the pressure sensor 2 is more accurate in measuring pressure, and accordingly, the pressure on the product can be more accurately controlled.

[0030] As attached Figure 3 and6 As shown in FIG. 1 , a rubber cap 15 is sleeved on the top of the pressure sensor 2, and the top of the pressure sensor 2 is sealed with the side wall of the connecting groove 10 through the rubber cap 15. Since the pressure sensor 2 is fixed to the connecting seat 6 through the locking bolt 20, the rubber cap 15 has an opening adapted to the locking bolt 20, and the locking bolt 20 is sealed with the opening of the rubber cap 15 to prevent the hydraulic fluid from leaking from between the locking bolt 20 and the opening.

[0031] The upper end surface of the piston block 13 is also an arc-shaped surface, and the curvature of the upper end surface of the piston block 13 is smaller than the curvature of the lower end surface of the joint 5. When the guide rod 8 is not flush and causes the connecting seat 6 to be skewed, the joint 5 is easier to swing and adjust and maintain connection with the piston block 13.

[0032] As attached Figure 4 As shown in , the pressure head assembly 1 includes a connecting frame 16 fixedly connected to the lower end of the pressure sensor 2, and a turntable 17 is arranged on the connecting frame 16. There are multiple pressure head installation stations 18 on the turntable 17, and different pressure heads can be installed on the pressure head installation stations 18. The turntable 17 is driven to rotate by a motor, and the motor is connected to the controller signal. The controller controls the motor to rotate a corresponding angle, so that the turntable 17 rotates to switch the downward pressure head installation station 18. A photoelectric sensor is also arranged on the connecting frame 16, and the photoelectric sensor can monitor the signal of different pressure head installation stations 18 rotating into place, and transmit the signal to the controller. Since multiple pressure head installation stations 18 are arranged on the turntable 17, the pressure head assembly 1 can be compatible with a variety of working conditions, and the number and cost of equipment investment are greatly reduced.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A press-fitting system with a pressure monitoring module, characterized in that: The device comprises a pressing head assembly (1), wherein the pressing head assembly (1) is driven to move up and down by a driving device, and performs a pressing action when the pressing head assembly (1) moves downward; a pressure sensor (2) is provided between the driving device and the pressing head assembly (1), and the pressure sensor (2) correspondingly monitors the downward pressing pressure of the pressing head assembly (1); the pressure sensor (2) is connected to a controller signal, and the controller can receive pressure data obtained by the pressure sensor (2), and adjust the power output of the driving device according to the pressure data feedback; The upper end of the pressure sensor (2) is fixed on the connecting seat (6); the connecting seat (6) has a connecting cavity (9) therein; The bottom of the connecting cavity (9) is provided with a piston cavity (11), the lower part of the piston cavity (11) is filled with hydraulic fluid, the upper part of the piston cavity (11) is provided with a piston block (13), and the lower end of the joint (5) abuts against the upper end of the piston block (13); the top of the pressure sensor (2) is sealed with the side wall of the connecting groove (10), a connecting hole (14) is provided between the connecting groove (10) and the piston cavity (11), and the hydraulic fluid can penetrate through the connecting hole (14) between the top wall of the connecting groove (10) and the top of the pressure sensor (2), so that the joint (5) can apply pressure to the pressure sensor (2) through the piston block (13) and the hydraulic fluid.

2. A press-fitting system with a pressure monitoring module according to claim 1, characterized in that: The driving device comprises a telescopic cylinder (3), the lower end of an output rod (4) of the telescopic cylinder (3) is provided with a joint (5), and the joint (5) is connected to a connecting seat (6); the lower end of the pressure sensor (2) is connected to a pressure head assembly (1).

3. A press-fitting system with a pressure monitoring module according to claim 2, characterized in that: The telescopic cylinder (3) is fixed on a mounting frame (7), and a guide assembly is provided between the mounting frame (7) and the connecting seat (6). The guide assembly guides the connecting seat (6) so that the connecting seat (6) can be movably displaced along the telescopic direction of the telescopic cylinder (3).

4. A press-fitting system with a pressure monitoring module according to claim 3, characterized in that: The guide assembly comprises a plurality of guide holes formed on the mounting frame (7) and a plurality of guide rods (8) connected to the connecting seat (6); the joints (5) extend into the connecting cavities (9) correspondingly, and the joints (5) and the connecting cavities (9) are clearance-matched, so that the joints (5) can swing and adjust when the guide rods (8) are not aligned.

5. A press-fitting system with a pressure monitoring module according to claim 4, characterized in that: The lower end surface of the joint (5) is an arc-shaped surface, so that when the joint (5) is swung for adjustment, the lower end surface of the joint (5) can still maintain contact with the bottom of the connecting cavity (9).

6. A press-fitting system with a pressure monitoring module according to claim 5, characterized in that: A connecting groove (10) is provided at the bottom of the connecting seat (6); the pressure sensor (2) and the connecting seat (6) are fixedly connected via a locking assembly; the top of the pressure sensor (2) is correspondingly inserted into the connecting groove (10); and the shape of the top of the pressure sensor (2) is consistent with the shape of the connecting groove (10).

7. A press-fitting system with a pressure monitoring module according to claim 1, characterized in that: The top of the pressure sensor (2) is covered with a rubber cap (15), and the top of the pressure sensor (2) is sealed with the side wall of the connecting groove (10) through the rubber cap (15).

8. The press-fitting system with a pressure monitoring module according to claim 1, characterized in that: The upper end surface of the piston block (13) is also an arc-shaped surface, and the curvature of the upper end surface of the piston block (13) is smaller than the curvature of the lower end surface of the joint (5).

9. A press-fitting system with a pressure monitoring module according to any one of claims 1 to 8, characterized in that: The pressure head assembly (1) comprises a connecting frame (16) connected to the lower end of the pressure sensor (2), a turntable (17) being arranged on the connecting frame (16), and a plurality of pressure head installation positions (18) being arranged on the turntable (17); the turntable (17) is driven to rotate by a motor, the motor is connected to the controller signal, and the controller controls the motor to rotate a corresponding angle, so that the turntable (17) rotates to switch the downward pressure head installation position (18).

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