Punch connecting rod mechanism

Abstract

The utility model discloses a connecting rod mechanism for a punch press, comprising a circular frame and an I-shaped plate installed on the inner wall of one side of the circular frame, and a rear T-shaped support seat is fixed on the back of the I-shaped plate, a back plate is integrally formed at one end of the back of the circular frame, a main shaft is rotatably installed on one end of the surface of the I-shaped plate, a right-angle punch seat is slidably installed on the other end of the surface of the I-shaped plate through a linear guide structure, and a connecting rod structure for driving the right-angle punch seat to reciprocate and lift is installed at one end of the main shaft. The utility model increases the stability of the punch press by reducing the shaking and swinging of the right-angle punch seat during movement, thereby improving the processing accuracy and workpiece quality, and making the punch press more reliable during high-speed processing or large-workpiece processing.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a punching machine connecting rod mechanism. Background Art

[0002] The connecting rod mechanism of the punch press is a key component of the punch press machinery. It is mainly composed of a crankshaft, a connecting rod and a slider. Its functions include transmitting power, adjusting the motion trajectory and increasing the stability of the punch press. The crankshaft drives the connecting rod mechanism. The connecting rod converts the rotational motion into the linear reciprocating motion of the slider by connecting the crankshaft and the slider, and pushes the punch to perform impact processing. The structural principle of the connecting rod mechanism adjusts the movement speed and acceleration of the slider through the connecting rod ratio to achieve the motion trajectory under different processing requirements. However, at this stage, the connecting rod mechanism of the punch press mainly relies on the guide rails, sleeves and other components on the punch press to maintain the stability of the slider in the vertical direction. In this process, the stable system formed by the guide rails and sleeves is mainly in a planar state, and the stable system in a planar state is easily affected by external disturbances, resulting in insufficient stability of the slider. In the process of high-speed processing or large workpiece processing, insufficient stability directly leads to reduced processing accuracy or unstable processing quality. Utility Model Content

[0003] The utility model aims to provide a punch connecting rod mechanism, which forms a three-sided guiding plane through a linear guiding structure, a vertical guiding structure and a connecting arm, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punch connecting rod mechanism, including a circular frame and an I-shaped plate installed on the inner wall of one side of the circular frame, and a rear T-shaped support seat is fixed to the back of the I-shaped plate, a back plate is integrally formed at one end of the back of the circular frame, a main shaft is rotatably installed on one end of the surface of the I-shaped plate, and a right-angle punch seat is slidably installed on the other end of the surface of the I-shaped plate through a linear guide structure, a connecting rod structure for driving the right-angle punch seat to reciprocate and lift is installed at one end of the main shaft, connecting arms are fixed on both sides of the back of the right-angle punch seat, and vertical guide structures for assisting the connecting arms to lift and lower are provided on both sides of the top of the circular frame.

[0005] Preferably, the connecting rod structure includes a turntable installed at one end of the main shaft, and a connecting rod unit hingedly installed at the edge of the turntable surface, and the bottom end of the connecting rod unit is hingedly connected to one side of the right-angle punch seat surface.

[0006] Preferably, the vertical guide structure consists of a guide column and a sliding sleeve. The guide column is fixed on one side of the top of the back plate, and the sliding sleeve is slidably installed on one end of the surface of the guide column. Both sides of the surface of the I-shaped plate are provided with sliding grooves for the end of the connecting arm to slide and pass through, and one side outer wall of the sliding sleeve is fixedly connected to one end of the connecting arm.

[0007] Preferably, the linear guide structure includes a guide rail fixed to one end of the I-shaped plate surface, and a dovetail slider fixed to the back of the right-angle punch seat, and the dovetail slider and the guide rail are slidably matched.

[0008] Preferably, a motor is installed on the outer wall of the rear T-shaped support seat on one side close to the I-shaped plate, and a pulley transmission structure for driving the main shaft to rotate is installed on the output end of the motor.

[0009] Preferably, a speed sensor for detecting the speed of the driven wheel of the pulley transmission structure is installed on one side of the top end of the rear T-shaped support seat.

[0010] Preferably, support columns are fixed on both sides of the top of the circular frame, T-shaped sleeves are slidably installed on both ends of the surface of the support columns, and the surface of the T-shaped sleeves is fixedly connected to the back corners of the I-shaped plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the punch press connecting rod mechanism forms a three-sided guide plane through a linear guide structure and a vertical guide structure, thereby reducing the shaking and swinging of the right-angle punch seat during movement, increasing the stability of the punch press, thereby improving the processing accuracy and workpiece quality, and making the punch press more reliable during high-speed processing or large workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 It is a side view structural schematic diagram of the utility model;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of the I-shaped plate and the rear T-shaped support seat of the utility model;

[0016] In the figure: 1. circular frame; 101. back plate; 102. guide column; 103. sliding sleeve; 2. I-shaped plate; 201. slide groove; 202. connecting arm; 3. main shaft; 4. right-angle punch seat; 5. connecting rod structure; 501. turntable; 502. connecting rod unit; 6. rear T-shaped support seat; 7. speed sensor; 8. linear guide structure; 801. dovetail slider; 802. guide rail; 9. motor; 10. pulley transmission structure. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides an embodiment: a punch connecting rod mechanism, including a circular frame 1 and an I-shaped plate 2 installed on the inner wall of one side of the circular frame 1, and a rear T-shaped support seat 6 is fixed on the back of the I-shaped plate 2, and a back plate 101 is integrally formed at one end of the back of the circular frame 1, a main shaft 3 is rotatably installed on one end of the surface of the I-shaped plate 2, and a right-angle punch seat 4 is slidably installed on the other end of the surface of the I-shaped plate 2 through a linear guide structure 8, and a connecting rod structure 5 for driving the right-angle punch seat 4 to reciprocate and lift is installed at one end of the main shaft 3, and connecting arms 202 are fixed on both sides of the back of the right-angle punch seat 4, and vertical guide structures for assisting the connecting arm 202 to lift and lower are arranged on both sides of the top of the circular frame 1;

[0019] The connecting rod structure 5 includes a turntable 501 installed at one end of the main shaft 3, and a connecting rod unit 502 hingedly installed at the edge of the turntable 501 surface. The bottom end of the connecting rod unit 502 is hingedly connected to one side of the surface of the right-angle punch seat 4. When the main shaft 3 is driven to rotate by an external rotary drive unit, the rotary motion of the main shaft 3 is converted into a linear reciprocating lifting motion of the right-angle punch seat 4 through the connecting rod structure 5.

[0020] The linear guide structure 8 includes a guide rail 802 fixed to one end of the surface of the I-shaped plate 2, and a dovetail slider 801 fixed to the back of the right-angle punch seat 4. The dovetail slider 801 and the guide rail 802 are slidably matched, and the spindle 3 drives the turntable 501 to rotate. Since the two ends of the connecting rod monomer 502 are respectively hinged on the turntable 501 and the right-angle punch seat 4, the rotational motion of the turntable 501 is converted into a reciprocating lifting motion of the right-angle punch seat 4 through the connecting rod monomer 502, and then the right-angle punch seat 4 drives the dovetail slider 801 to slide in the extension direction of the guide rail 802. The dovetail slider 801 and the guide rail 802 increase the stability of the punch press by vertical support, making it more reliable during high-speed processing or large-scale workpiece processing.

[0021] The vertical guide structure is composed of a guide column 102 and a sliding sleeve 103. The guide column 102 is fixed to one side of the top of the back plate 101. The sliding sleeve 103 is slidably installed on one end of the surface of the guide column 102. Both sides of the surface of the I-shaped plate 2 are provided with a sliding groove 201 for the end of the connecting arm 202 to slide and pass through. The outer wall of one side of the sliding sleeve 103 is fixedly connected to one end of the connecting arm 202. The right-angle punch seat 4 drives the connecting arm 202 and the sliding sleeve 103 to move together in the extension direction of the guide column 102. The guide column 102 and the sliding sleeve 103 further ensure the stability of the right-angle punch seat 4 in the vertical direction, reducing errors and deviations during the processing.

[0022] A motor 9 is installed on the outer wall of the rear T-shaped support seat 6 near the I-shaped plate 2. A pulley transmission structure 10 for driving the main shaft 3 to rotate is installed at the output end of the motor 9. The rotary power of the motor 9 is transmitted to the main shaft 3 through the pulley transmission structure 10. Since the pulley transmission structure 10 can flexibly adjust the transmission ratio, the connecting rod structure 5 can still change the processing path or processing method of the workpiece by adjusting the connecting rod length or working angle.

[0023] A speed sensor 7 for detecting the speed of the driven wheel of the pulley transmission structure 10 is installed on one side of the top of the rear T-shaped support seat 6. The speed sensor 7 can monitor the speed changes of the driven wheel and the main shaft 3 in the pulley transmission structure 10 in real time. By analyzing the changes in the speed, abnormal wear, shedding or other problems of the transmission parts can be discovered in time to avoid production interruption or equipment damage caused by equipment failure;

[0024] Support columns are fixed on both sides of the top of the circular frame 1, and T-shaped sleeves are slidably installed on both ends of the surface of the support columns. The surface of the T-shaped sleeves is fixedly connected to the back corners of the I-shaped plate 2. When the back of the I-shaped plate 2 slides with the inner wall of the circular frame 1, and telescopic parts such as cylinders are added to the top of the main shaft 3, the I-shaped plate 2, the rear T-shaped support seat 6, the motor 9 and other components can be pulled up as a whole by the telescopic parts such as cylinders, thereby changing the punching height of the right-angle punch seat 4, and there is no need to adjust the connecting rod length or working angle.

[0025] When the embodiment of the present application is in use, first, when the main shaft 3 is driven to rotate by the external rotation drive unit, the rotational movement of the main shaft 3 is converted into a linear reciprocating lifting movement of the right-angle punch seat 4 through the connecting rod structure 5. During this process, the right-angle punch seat 4 and the I-plate 2 maintain relatively stable sliding through the linear guide structure 8. The linear guide structure 8 provides stable support and guidance by directly guiding the movement trajectory of the right-angle punch seat 4. At the same time, the right-angle punch seat 4 drives the connecting arm 202 to rise and fall together. At this time, the two vertical guide structures at the top of the back plate 101 further increase the stability of the right-angle punch seat 4 in the vertical direction, thereby forming a three-sided guide plane through the linear guide structure 8 and the vertical guide structure, thereby reducing the shaking and swinging of the right-angle punch seat 4 during the movement, increasing the stability of the punch press, thereby improving the processing accuracy and workpiece quality, and making the punch press more reliable during high-speed processing or large workpiece processing.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. Punch connecting rod mechanism, characterized in that: The invention comprises a circular frame (1) and an I-shaped plate (2) mounted on the inner wall of one side of the circular frame (1), wherein a rear T-shaped support seat (6) is fixed on the back of the I-shaped plate (2), a back plate (101) is integrally formed at one end of the back of the circular frame (1), a main shaft (3) is rotatably mounted on one end of the surface of the I-shaped plate (2), a right-angle punch seat (4) is slidably mounted on the other end of the surface of the I-shaped plate (2) through a linear guide structure (8), a connecting rod structure (5) for driving the right-angle punch seat (4) to reciprocate and rise and fall is mounted on one end of the main shaft (3), connecting arms (202) are fixed on both sides of the back of the right-angle punch seat (4), and vertical guide structures for assisting the connecting arms (202) to rise and fall are arranged on both sides of the top of the circular frame (1).

2. The punch press connecting rod mechanism according to claim 1, characterized in that: The connecting rod structure (5) comprises a turntable (501) mounted on one end of the main shaft (3), and a connecting rod unit (502) hingedly mounted at the edge of the surface of the turntable (501), wherein the bottom end of the connecting rod unit (502) is hingedly connected to one side of the surface of the right-angle punch seat (4).

3. The punch press connecting rod mechanism according to claim 1, characterized in that: The vertical guide structure is composed of a guide column (102) and a sliding sleeve (103); the guide column (102) is fixed to one side of the top of the back plate (101); the sliding sleeve (103) is slidably mounted on one end of the surface of the guide column (102); both sides of the surface of the I-shaped plate (2) are provided with sliding grooves (201) for the end of the connecting arm (202) to slide and pass through; and one side outer wall of the sliding sleeve (103) is fixedly connected to one end of the connecting arm (202).

4. The punch press connecting rod mechanism according to claim 1, characterized in that: The linear guide structure (8) comprises a guide rail (802) fixed to one end of the surface of the I-shaped plate (2), and a dovetail slider (801) fixed to the back of the right-angle punch seat (4), wherein the dovetail slider (801) and the guide rail (802) are slidably matched.

5. The punch press connecting rod mechanism according to claim 1, characterized in that: A motor (9) is installed on the outer wall of one side of the rear T-shaped support seat (6) close to the I-shaped plate (2), and a pulley transmission structure (10) for driving the main shaft (3) to rotate is installed at the output end of the motor (9).

6. The punch press connecting rod mechanism according to claim 5, characterized in that: A rotation speed sensor (7) for detecting the rotation speed of a driven wheel of the pulley transmission structure (10) is installed on one side of the top end of the rear T-shaped support seat (6).

7. The punch press connecting rod mechanism according to claim 1, characterized in that: Support columns are fixed on both sides of the top of the circular frame (1), and T-shaped sleeves are slidably installed on both ends of the surface of the support columns, and the surface of the T-shaped sleeves is fixedly connected to the back corners of the I-shaped plate (2).

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