High-precision servo hydraulic squeeze riveter

Abstract

A precise shaping mechanism comprises an electromagnet combination block, a guide rod, a spring and an ejector rod, the electromagnet combination block is fixedly installed at the other end of the guide rod, and the bottom surface of the electromagnet combination block is in sliding contact with the surface of an iron plate; and the structural shape of one end of each ejector rod is matched with the structural shape of a corresponding structural part of a workpiece. The device has the beneficial effects that the structural shape of one end of each ejector rod is matched with the structural shape of a corresponding structural part of a workpiece, the ejector rods and the telescopic guide rods connected with the ejector rods are combined, and the electromagnet combination blocks are electrified to generate a high-intensity magnetic field to be magnetically attracted and fixed to the iron plate; the effect of keeping the ejector rods abutting against the corresponding parts of the workpieces still is achieved, the two workpieces placed according to the riveting positions are taken down, an accurate positioning and placing space can be formed, dislocation of the workpieces in the pressing and riveting process is avoided, and the accuracy of the contact positions of other parts between the workpieces is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of riveting machines, in particular to a high-precision servo hydraulic riveting machine. Background Art

[0002] The riveting machine is a new type of riveting equipment developed based on the principle of cold rolling. It refers to mechanical equipment that can rivet objects together with rivets. It solves the problem that some sheet metal parts cannot be directly placed on ordinary slope cast steel machinery for riveting after bending. The servo hydraulic riveting machine is a riveting machine driven by a servo hydraulic cylinder. However, the existing servo hydraulic riveting machine cannot guarantee the precise invariance of the contact position between the structures of the two workpieces during the riveting process. It is difficult to manually position the workpiece, and it is impossible to maintain a formed structure to position and fix the workpiece with high precision. Therefore, a high-precision servo hydraulic riveting machine is proposed to address the above problems. Summary of the invention

[0003] The purpose of the present invention is to provide a high-precision servo hydraulic riveting machine in order to solve the above problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical scheme: a high-precision servo hydraulic riveting machine, comprising a riveting head, a servo hydraulic press, a riveting support platform, a precise shaping mechanism, an L-shaped plate, a cabinet, a carrier, a cylinder and a square rod, wherein the riveting head is installed at the output end of the servo hydraulic press, and a riveting support platform is arranged directly below the riveting head, a cylinder and a square rod are respectively arranged at the middle and both ends of the back of the servo hydraulic press, and the square rod is slidably connected with the square hole located on the carrier, L-shaped plates are arranged on both sides of the riveting support platform, and the precise shaping mechanism is arranged on the L-shaped plate; The precise shaping mechanism comprises an electromagnet assembly block, a guide rod, a spring and a push rod, each guide rod in a group is slidably connected to a corresponding guide hole in a group on the L-shaped plate, one end of each guide rod is threadedly connected to a push rod, and the other end of the guide rod is fixedly mounted with an electromagnet assembly block, the bottom surface of the electromagnet assembly block is in sliding contact with the surface of an iron plate vertically connected to one side of the L-shaped plate, the spring is sleeved at the corresponding part of the guide rod, and the structural shape of one end of each push rod matches the structural shape of the corresponding structural part of the workpiece; Slide seats are installed at both ends of the bottom of the L-shaped plate, and the slide seats are slidably installed on the corresponding guide rails. The screw hole block located at the bottom of the L-shaped plate is threadedly connected to the lead screw.

[0005] Preferably, five oil cylinders are distributed and installed at the bottom of the riveting support platform, and the cylinder end of each of the oil cylinders is fixedly installed on the U-shaped carrier plate.

[0006] Preferably, two ends of the U-shaped carrier plate are respectively fixedly connected to the top surface of the cabinet.

[0007] Preferably, the electromagnet assembly block is composed of a square iron core and a winding resistor, and the electromagnet assembly block forms a magnetic field by energizing the iron plate to be magnetically fixed to each other.

[0008] Preferably, the lead screw is an equal-length reverse thread structure, and one end of the lead screw is connected to a motor located at the top of the cabinet.

[0009] Preferably, two guide rails are provided, and the two guide rails are symmetrically installed on the top surface of the cabinet.

[0010] Preferably, the cylinder body portion of the cylinder is fixedly connected to a corresponding portion of the carrier.

[0011] Preferably, the spring is located between one end of the electromagnet assembly block and the guide hole.

[0012] The beneficial effects of the present invention are as follows: the structural shape of one end of each push rod is matched with the structural shape of the structural part corresponding to the workpiece, and the push rod and the guide rod connected thereto are retractable, and at the same time, a strong magnetic field is generated by energizing the electromagnet assembly block and fixed by magnetic attraction to the iron plate, so as to keep the push rod against the corresponding part of the workpiece and not move. By removing the two workpieces placed according to the riveting position, it is conducive to forming a precise positioning and placement space, avoiding misalignment of the workpiece during the riveting process, ensuring the accuracy of the contact position of other parts between the workpieces, and improving the riveting processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 It is a partial structural stereogram of the whole invention; Figure 3 It is a schematic diagram of the connection structure between the precise shaping mechanism and the riveting support platform of the present invention.

[0015] In the figure: 1. Riveting head; 2. Servo hydraulic press; 3. Riveting support platform; 310. U-shaped carrier plate; 320. Cylinder; 4. L-shaped plate; 410. Guide hole; 420. Iron plate; 430. Slide seat; 440. Screw hole block; 5. Electromagnet assembly block; 6. Guide rod; 7. Spring; 8. Push rod; 9. Lead screw; 10. Guide rail; 11. Cabinet; 12. Carrier; 1210. Square hole; 13. Cylinder; 14. Square rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 creative work are within the scope of protection of the present invention.

[0017] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0018] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] See also Figure 1-3 As shown, a high-precision servo hydraulic riveting machine comprises a riveting head 1, a servo hydraulic machine 2, a riveting support platform 3, a precise shaping mechanism, an L-shaped plate 4, a cabinet 11, a carrier 12, a cylinder 13 and a square rod 14. The riveting head 1 is installed at the output end of the servo hydraulic machine 2, and a riveting support platform 3 is arranged directly below the riveting head 1. The cylinder 13 and the square rod 14 are respectively arranged at the middle and both ends of the back of the servo hydraulic machine 2, and the square rod 14 is slidably connected with the square hole 1210 located on the carrier 12. L-shaped plates 4 are arranged on both sides of the riveting support platform 3, and a precise shaping mechanism is arranged on the L-shaped plate 4. The servo hydraulic press 2 is operated to move the riveting head 1 connected to its end downward to perform riveting, and the connected servo hydraulic press 2 is pushed and pulled forward and backward in combination with the extension and contraction of the cylinder 13, thereby adjusting the riveting position.

[0020] The precise shaping mechanism comprises an electromagnet assembly block 5, a guide rod 6, a spring 7 and a push rod 8, each guide rod 6 in a group is slidably connected to a corresponding guide hole 410 in a group on the L-shaped plate 4, one end of each guide rod 6 is threadedly connected to a push rod 8, and the other end of the guide rod 6 is fixedly mounted with an electromagnet assembly block 5, the bottom surface of the electromagnet assembly block 5 is in sliding contact with the surface of an iron plate 420 vertically connected to one side of the L-shaped plate 4, the spring 7 is sleeved on the corresponding part of the guide rod 6, and the structural shape of one end of each push rod 8 matches the structural shape of the corresponding structural part of the workpiece; As the two precise shaping mechanisms move toward the two sides of the two workpieces pre-fixed together on the riveting support platform 3, the guide rod 6 and the push rod 8 connected to its end also move toward the workpiece, and each push rod 8 is pressed against the overlapping edge of the two workpieces, and the structural shape of one end of each push rod 8 matches the structural shape of the corresponding structural part of the workpiece. After each push rod 8 contacts the corresponding part of the workpiece and remains unchanged, the electromagnet assembly block 5 connected to each guide rod 6 is energized to generate a magnetic field and is magnetically fixed together with the iron plate 420, which plays a role in keeping the push rod 8 pressed against the corresponding part of the workpiece and not moving. At this time, the two workpieces pre-fixed and fitted together are removed, leaving space for positioning and placement, so as to achieve the effect of subsequent precise positioning and placement.

[0021] Slide seats 430 are installed at both ends of the bottom of the L-shaped plate 4, and the slide seats 430 are slidably installed on the corresponding guide rails 10. The screw hole block 440 located at the bottom of the L-shaped plate 4 is threadedly connected to the lead screw 9. The lead screw 9 is an equal-length reverse thread structure, and one end of the lead screw 9 is connected to the motor located at the top of the cabinet 11. Two guide rails 10 are provided, and the two guide rails 10 are symmetrically installed on the top surface of the cabinet 11; As the lead screw 9 is driven by the motor to rotate, the slide 430 and the L-shaped plate 4 connected thereto via the screw hole block 440 move toward the riveting support platform 3, thereby achieving the effect of moving the precise forming mechanisms on the two L-shaped plates 4 toward each other and adjusting the distance between the two precise forming mechanisms.

[0022] Furthermore, five oil cylinders 320 are distributed and installed at the bottom of the riveting support platform 3, and the cylinder end of each of the oil cylinders 320 is fixedly installed on the U-shaped carrier plate 310, and the two ends of the U-shaped carrier plate 310 are respectively fixedly connected to the top surface of the cabinet 11.

[0023] Furthermore, the electromagnet assembly block 5 is composed of a square iron core and a winding resistor, and the electromagnet assembly block 5 forms a magnetic field by energizing to fix the iron plate 420 to each other by magnetic attraction.

[0024] The cylinder body of the cylinder 13 is fixedly connected to the corresponding part of the carrier 12. The cylinder 13 is operated to push and pull the connected servo hydraulic press 2 forward and backward to achieve the effect of changing the riveting position.

[0025] The spring 7 is located between one end of the electromagnet assembly block 5 and the guide hole 410 , and the guide rod 6 is reset by the spring 7 .

[0026] When the present invention is in use, the servo hydraulic press 2 is operated to move the riveting head 1 connected to its end downward to perform riveting, and the connected servo hydraulic press 2 is pushed and pulled forward and backward in combination with the extension and contraction of the cylinder 13, so as to adjust the riveting position; As the two precise shaping mechanisms move toward the two sides of the two workpieces pre-fixed together on the riveting support platform 3, the guide rod 6 and the push rod 8 connected to its end also move toward the workpiece, and each push rod 8 is pressed against the edge where the two workpieces overlap, and the structural shape of one end of each push rod 8 matches the structural shape of the corresponding structural part of the workpiece. After each push rod 8 contacts the corresponding part of the workpiece and remains unchanged, the electromagnet assembly block 5 connected to each guide rod 6 is energized to generate a magnetic field and is magnetically fixed to the iron plate 420, which plays a role in keeping the push rod 8 pressed against the corresponding part of the workpiece and not moving. At this time, the two pre-fixed workpieces that are pressed together are removed, leaving space for positioning and placement, so as to achieve the effect of subsequent precise positioning and placement. Under the action of the motor driving the lead screw 9 to rotate, the slide seat 430 and the L-shaped plate 4 connected thereto through the screw hole block 440 move closer to the riveting support platform 3, so as to achieve the effect of moving the precise shaping mechanisms located on the two L-shaped plates 4 toward each other and adjusting the distance between the two precise shaping mechanisms; Compared with the prior art, the present invention is different in that: the structural shape of one end of each push rod 8 is matched with the structural shape of the corresponding structural part of the workpiece, and the push rod 8 and the guide rod 6 connected thereto are retractable, and at the same time, the electromagnet assembly block 5 is energized to generate a strong magnetic field and magnetically fix it with the iron plate 420, which plays a role in keeping the push rod 8 against the corresponding part of the workpiece and not moving. By removing the two workpieces placed according to the riveting position, it is conducive to forming a precise positioning and placement space, avoiding misalignment of the workpiece during the riveting process, ensuring the accuracy of the contact position of other parts between the workpieces, and improving the riveting processing quality.

[0027] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0028] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-precision servo hydraulic riveting machine, characterized in that: The invention comprises a riveting head (1), a servo hydraulic press (2), a riveting support platform (3), a precision shaping mechanism, an L-shaped plate (4), a cabinet (11), a carrier (12), a cylinder (13) and a square rod (14), wherein the riveting head (1) is mounted at the output end of the servo hydraulic press (2), and a riveting support platform (3) is arranged directly below the riveting head (1), the servo hydraulic press (2) has a cylinder (13) and a square rod (14) at the middle and both ends of the back side, respectively, and the square rod (14) is slidably connected to a square hole (1210) located on the carrier (12), L-shaped plates (4) are arranged on both sides of the riveting support platform (3), and the precision shaping mechanism is arranged on the L-shaped plate (4); The precise shaping mechanism comprises an electromagnet assembly block (5), a guide rod (6), a spring (7) and a push rod (8), wherein each guide rod (6) in a group is slidably connected to a corresponding guide hole (410) in a group on the L-shaped plate (4), one end of each guide rod (6) is threadedly connected to the push rod (8), and the other end of the guide rod (6) is fixedly mounted with the electromagnet assembly block (5), the bottom surface of the electromagnet assembly block (5) is in sliding contact with the surface of an iron plate (420) vertically connected to one side of the L-shaped plate (4), the spring (7) is sleeved on the corresponding part of the guide rod (6), and the structural shape of one end of each push rod (8) matches the structural shape of the corresponding structural part of the workpiece; Slide seats (430) are installed at both ends of the bottom of the L-shaped plate (4), and the slide seats (430) are slidably installed on the corresponding guide rails (10). The screw hole block (440) located at the bottom of the L-shaped plate (4) is threadedly connected to the lead screw (9).

2. The high-precision servo hydraulic riveting machine according to claim 1, characterized in that: Five oil cylinders (320) are distributed and installed at the bottom of the pressure riveting support platform (3), and the cylinder end of each of the oil cylinders (320) is fixedly installed on the U-shaped carrier plate (310).

3. The high-precision servo hydraulic riveting machine according to claim 2, characterized in that: Both ends of the U-shaped carrier plate (310) are respectively fixedly connected to the top surface of the cabinet (11).

4. The high-precision servo hydraulic riveting machine according to claim 1, characterized in that: The electromagnet assembly block (5) is composed of a square iron core and a winding resistor, and the electromagnet assembly block (5) forms a magnetic field by energizing the iron plate (420) to be magnetically attracted and fixed to each other.

5. The high-precision servo hydraulic riveting machine according to claim 1, characterized in that: The lead screw (9) is an equal-length reverse thread structure, and one end of the lead screw (9) is connected to a motor located at the top of the cabinet (11).

6. The high-precision servo hydraulic riveting machine according to claim 1, characterized in that: Two guide rails (10) are provided, and the two guide rails (10) are symmetrically mounted on the top surface of the cabinet (11).

7. The high-precision servo hydraulic riveting machine according to claim 1, characterized in that: The cylinder body portion of the cylinder (13) is fixedly connected to a corresponding portion of the carrier (12).

8. The high-precision servo hydraulic riveting machine according to claim 1, characterized in that: The spring (7) is located between one end of the electromagnet assembly block (5) and the guide hole (410).

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