Machine head structure for four-column servo pressing machine

Abstract

The machine head structure comprises a machine box and a lower supporting plate fixed to the center of the top end of the machine box, a lower die plate is arranged on the upper surface of the lower supporting plate, and lip plates used for limiting the front side edge and the rear side edge of the lower die plate are integrally formed on the front outer wall and the rear outer wall of the lower supporting plate. Inverted-U-shaped frames used for limiting the left outer wall and the right outer wall of the lower die plate are fixed to the left outer wall and the right outer wall of the lower supporting plate correspondingly, and U-shaped double-end abutting blocks are installed at the top ends of the inverted-U-shaped frames in a sliding mode. According to the utility model, the positions of the lower supporting plate and the lower template are calibrated and limited, tedious adjustment and alignment operations are not needed, and the position and posture of the lower template during installation are ensured to be accurate by utilizing the horizontal sliding of the U-shaped double-head abutting block; the situation that the lower die plate is unstable in installation or problems occur in the using process due to inaccurate positions is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fitting machines, in particular to a head structure for a four-column servo press-fitting machine. Background Technique

[0002] The four-column servo press-fitting machine is a special equipment for processes such as press-fitting, assembly, and stamping. It is mainly used for positioning and press-fitting parts. The structure of the four-column servo press-fitting machine mainly includes components such as a frame, upper and lower worktables, a slider, a press-fitting head, and a servo system. Among them, the frame is the supporting structure of the entire equipment, the upper and lower worktables are used to fix and clamp workpieces, and the slider is used to support and drive the movement of the press-fitting head. The press-fitting head is a key component for realizing the press-fitting of workpieces and usually includes upper and lower press-fitting dies, a limiting component, a cylinder, etc.; for example, a head structure for a four-column servo press-fitting machine disclosed in the authorized publication number CN217622424U includes a base, an extrusion device, a groove body, a square kit, a square column, a lower die, multiple groups of support members, multiple groups of slide rails, multiple groups of sliders, multiple groups of support wheels, and multiple groups of first hydraulic cylinders. An extrusion device is arranged at the top of the base, and the extrusion device is used for extruding and processing parts. The bottom end of the groove body is connected to the top end of the base. A square hole is arranged at the top end of the base, and the square kit is arranged on the square hole. The square column slides up and down on the square kit, and the top end of the square column is connected to the bottom end of the lower die. It uses a hydraulic cylinder to push multiple groups of sliders and multiple groups of support wheels forward, so that multiple groups of support wheels are respectively in contact and cooperation with the inclined surfaces of multiple groups of support members, enabling multiple groups of support members to push the square column upward, and further enabling the lower die to push the parts upward. However, in the process of using the above technical solution, due to different shapes and sizes of different products, the lower press-fitting die needs to be designed and replaced according to the requirements of specific products. The lack of a quick-release structure will result in a time-consuming and laborious process for replacing the die, that is, workers need to disassemble and install multiple parts when replacing the die, and the operation is cumbersome. Content of the Utility Model

[0003] The purpose of the utility model is to provide a head structure for a four-column servo press-fitting machine. A lower support plate for limiting the lower template is added at the top of the chassis. After the lower support plate and the lower template are docked in place, the telescopic drive structure makes the U-shaped double-headed block move to the corner of the upper surface of the lower support plate to limit the lower support plate and the lower template, so as to solve the problems raised in the above background technique.

[0004] To achieve the above object, the present utility model provides the following technical solutions: A head structure for a four-column servo press includes a chassis and a lower support plate fixed at the center of the top of the chassis. A lower template is provided on the upper surface of the lower support plate. Lip plates for limiting the front and rear sides of the lower template are integrally formed on the front and rear outer walls of the lower support plate. Inverted U-shaped frames for limiting the left and right outer walls of the lower template are fixed on the left and right outer walls of the lower support plate. A U-shaped double-headed abutting block is slidably installed at the top of the inverted U-shaped frame. A telescopic driving structure for driving the U-shaped double-headed abutting block to slide towards the lower template is installed on the top wall of the inverted U-shaped frame. A four-column upper pressing structure is installed at the top of the chassis.

[0005] Preferably, the U-shaped double-headed abutting block includes a U-shaped arm slidably installed at the top of the inverted U-shaped frame and triangular seats fixed at both ends of the U-shaped arm.

[0006] Preferably, the telescopic driving structure uses a cylinder. A convex portion extending upward is fixed at the top of the piston rod of the cylinder. A rectangular sliding groove for the convex portion to slide is opened at the top of the inverted U-shaped frame. The top of the convex portion is fixedly connected to the bottom of the U-shaped arm.

[0007] Preferably, first baffles are fixed on the front and rear sides of the top of the chassis. Second baffles that are at a right angle to the ends of the first baffles are fixed on the left and right sides of the top of the chassis. A rectangular hollow portion through which one end of the inverted U-shaped frame passes is provided inside the second baffle.

[0008] Preferably, the four-column upper pressing structure includes columns fixed at the corner positions of the top of the chassis, an upper machine plate installed at the top of the columns, and guide rods vertically slidably installed at the corner positions of the top of the upper machine plate. Lower templates are fixed at the bottoms of the four guide rods.

[0009] Preferably, straight grooves are provided on both sides of the top of the U-shaped arm. Raised columns are installed on both sides of the top of the inverted U-shaped frame. The raised columns extend into the straight grooves.

[0010] Compared with the prior art, the beneficial effect of the present utility model is that: The head structure for a four-column servo press achieves the position calibration and limitation of the lower support plate and the lower template through the cooperation of structures such as lip plates and U-shaped double-headed abutting blocks, without cumbersome adjustment and alignment operations. The horizontal sliding of the U-shaped double-headed abutting block ensures that the position and posture of the lower template during installation are accurate, avoiding the situation of unstable installation of the lower template or problems during use due to inaccurate position. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view structural schematic diagram of the present utility model;

[0012] Figure 2 Schematic three - dimensional structure of the present utility model Figure 1 ;

[0013] Figure 3 Schematic three - dimensional structure of the present utility model Figure 2 ;

[0014] Figure 4 Schematic three - dimensional structure diagram of the inverted U - shaped frame of the present utility model;

[0015] Figure 5 Schematic three - dimensional structure diagram of the lower support plate of the present utility model.

[0016] In the figure: 1, chassis; 2, four - column type upper pressing structure; 201, column; 202, upper machine plate; 203, guide rod; 204, upper template; 3, first baffle; 4, second baffle; 5, rectangular hollow part; 6, lower support plate; 601, lip plate; 7, lower template; 8, inverted U - shaped frame; 801, rectangular sliding groove; 9, telescopic driving structure; 901, convex part; 10, U - shaped double - head abutting block; 1001, U - shaped arm; 1002, triangular seat. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0018] Please refer to Figures 1-5 , an embodiment provided by the present utility model: A head structure for a four - column type servo press, including a chassis 1 and a lower support plate 6 fixed at the center position of the top end of the chassis 1. And a lower template 7 is arranged on the upper surface of the lower support plate 6. Lip plates 601 for limiting the front and rear sides of the lower template 7 are integrally formed on the front and rear outer walls of the lower support plate 6. Inverted U - shaped frames 8 for limiting the left and right outer walls of the lower template 7 are fixed on the left and right outer walls of the lower support plate 6. And a U - shaped double - head abutting block 10 is slidably installed at the top end of the inverted U - shaped frame 8. A telescopic driving structure 9 for driving the U - shaped double - head abutting block 10 to slide towards the lower template 7 is installed on the top wall of the inverted U - shaped frame 8. A four - column type upper pressing structure 2 is installed at the top end of the chassis 1;

[0019] By adding the lower support plate 6 for limiting the lower template 7 and the telescopic driving structure 9 to control the position of the U - shaped double - head abutting block 10, when workers replace the mold, they only need to dock the lower template 7 onto the lower support plate 6, and then move the U - shaped double - head abutting block 10 to the corners of the lower template 7 to complete the limiting. This simplifies the operation steps of replacing the mold, reduces the time for adjustment and alignment, and improves the speed of replacing the mold;

[0020] The U-shaped double-headed abutting block 10 includes a U-shaped arm 1001 slidably mounted on the top end of the inverted U-shaped frame 8, and triangular seats 1002 fixed to both ends of the U-shaped arm 1001;

[0021] The telescopic driving structure 9 uses a cylinder. A convex portion 901 extending upward is fixed to the top end of the piston rod of the cylinder. A rectangular chute 801 for the convex portion 901 to slide is provided at the top end of the inverted U-shaped frame 8. The top end of the convex portion 901 is fixedly connected to the bottom end of the U-shaped arm 1001. The telescopic driving structure 9 uses a cylinder, and the convex portion 901 is driven by the piston rod of the cylinder to slide. During this process, the rectangular chute 801 serves as the movement guide for the convex portion 901. Then, the cylinder drives the U-shaped arm 1001 and the triangular seat 1002 to move towards the lower template 7 until the triangular seat 1002 moves to the upper surface of the lower template 7, thereby vertically limiting the lower template 7 and preventing the lower template 7 from jumping and being unstable in the vertical direction;

[0022] Straight grooves are provided on both sides of the top end of the U-shaped arm 1001. Convex columns are installed on both sides of the top end of the inverted U-shaped frame 8. The convex columns extend into the interior of the straight grooves to assist the U-shaped arm 1001 in sliding and prevent the U-shaped arm 1001 and the inverted U-shaped frame 8 from slipping off;

[0023] First baffles 3 are fixed to the front and rear sides of the top end of the chassis 1. Second baffles 4, which are at a right angle to the ends of the first baffles 3, are fixed to the left and right sides of the top end of the chassis 1. A rectangular hollow portion 5 through which one end of the inverted U-shaped frame 8 passes is provided inside the second baffle 4;

[0024] The four-column type upper pressing structure 2 includes columns 201 fixed at the corner positions of the top end of the chassis 1, an upper machine plate 202 installed at the top ends of the columns 201, and guide rods 203 vertically slidably installed at the corner positions of the top end of the upper machine plate 202. The bottom ends of the four guide rods 203 are fixed with an upper template 204. During the operation of the four-column type upper pressing structure 2, the upper template 204 is driven by a hydraulic cylinder to move downward. An upper die corresponding to the lower template 7 can be installed on the lower surface of the upper template 204. Then, the hydraulic cylinder drives the upper template 204, the upper die, and the guide rods 203 to move downward. The four guide rods 203 support and guide the lifting of the upper template 204.

[0025] When the embodiment of the present application is in use, first, the staff takes out the lower template 7 to be used and places the lower template 7 on the upper surface of the lower support plate 6. At this time, the lip plate 601 at the top of the lower support plate 6 limits and blocks the front and rear sides of the lower template 7, while the inverted U-shaped frame 8 limits and blocks the left and right sides of the lower support plate 6, so that the lower template 7 can be quickly and accurately placed at the top of the lower support plate 6. Through this structural design, when the worker replaces the lower template 7, he only needs to dock the lower template 7 onto the lower support plate 6 to achieve the position calibration and limitation of the two, making the process of replacing the lower template 7 simple and fast, without cumbersome adjustment and alignment operations. Subsequently, the staff activates the telescopic drive structure 9 to work, and the telescopic drive structure 9 pushes the U-shaped double-headed block 10 towards the lower template 7 until the lower surface of the end of the U-shaped double-headed block 10 contacts the upper surface of the corner of the lower template 7. The horizontal sliding of the U-shaped double-headed block 10 is used to ensure that the position and attitude of the lower template 7 during installation are accurate, avoiding the situation that the lower template 7 is unstable during installation or problems occur during use due to inaccurate position, so as to ensure the stable operation of the four-column type upper pressing structure 2 and the lower template 7 and guarantee the quality of the product.

Claims

1. A head structure for a four-column servo press machine, characterized in that: The invention comprises a chassis (1) and a lower support plate (6) fixed at the center position of the top of the chassis (1), and a lower template (7) is arranged on the upper surface of the lower support plate (6), and lip plates (601) for limiting the front and rear sides of the lower template (7) are integrally formed on the front and rear outer walls of the lower support plate (6), and an inverted U-shaped frame (8) for limiting the left and right outer walls of the lower template (7) is fixed on the left and right outer walls of the lower support plate (6), and a U-shaped double-headed stop block (10) is slidably installed on the top of the inverted U-shaped frame (8), and a telescopic driving structure (9) for driving the U-shaped double-headed stop block (10) to slide in the direction of the lower template (7) is installed on the top wall of the inverted U-shaped frame (8), and a four-column upper press-fit structure (2) is installed on the top of the chassis (1).

2. The head structure for a four-column servo press machine according to claim 1, characterized in that: The U-shaped double-end support block (10) comprises a U-shaped arm (1001) slidably mounted on the top of the inverted U-shaped frame (8), and a triangular seat (1002) fixed at both ends of the U-shaped arm (1001).

3. The head structure for a four-column servo press machine according to claim 2, characterized in that: The telescopic driving structure (9) adopts a cylinder, and a protrusion (901) extending upward is fixed to the top of the piston rod of the cylinder. A rectangular sliding groove (801) for the protrusion (901) to slide is provided at the top of the inverted U-shaped frame (8), and the top of the protrusion (901) is fixedly connected to the bottom of the U-shaped arm (1001).

4. The head structure for a four-column servo press machine according to claim 2, characterized in that: A first baffle (3) is fixed to the front and rear sides of the top of the chassis (1), and a second baffle (4) is fixed to the left and right sides of the top of the chassis (1) so as to form a right-angle structure with the end of the first baffle (3), and a rectangular hollow portion (5) is provided inside the second baffle (4) for one end of the inverted U-shaped frame (8) to pass through.

5. The head structure for a four-column servo press machine according to claim 1, characterized in that: The four-column upper press-fit structure (2) comprises a column (201) fixed at a top corner position of the chassis (1), an upper machine plate (202) installed at the top of the column (201), and a guide rod (203) installed vertically and slidably at the top corner position of the upper machine plate (202), and an upper template (204) is fixed at the bottom ends of the four guide rods (203).

6. The head structure for a four-column servo press machine according to claim 2, characterized in that: Both sides of the top of the U-shaped arm (1001) are provided with straight grooves, and both sides of the top of the inverted U-shaped frame (8) are provided with raised columns, which extend into the interior of the straight grooves.

Images