A riveting head for an error-proof riveting device

Abstract

The present invention relates to the technical field of riveting equipment components, and in particular to a riveting head for an error-proof riveting device, comprising a riveting seat and a head arranged at the axis of the lower end of the riveting seat, wherein the head and the riveting seat are split structures, and the head is movably installed in the inner cavity of the lower end of the riveting seat through a sliding support portion, and a sliding lock mechanism for vertically limiting the head is provided between the front and rear ends of the riveting seat. In the present invention, the original integrated riveting head is improved into a split structure, and a horizontal rail, a magnetic stopper, a folding spring, a soft iron core, a pressure sensor, a current sensor and a controller are provided between the riveting seat and the head. When the operator's hand accidentally touches the riveting head in a working state, the riveting head can be prevented from impacting and injuring the hand, thereby effectively reducing the occurrence of safety accidents during the riveting process, thereby improving the safety of the riveting device.

Description

Technical Field

[0001] The present invention relates to the technical field of riveting equipment components, in particular to a riveting head for an error-proof riveting device. Background Art

[0002] The riveting machine uses a punching machine and a special connecting die to form a stress-free internal inlaid dot with a certain tensile and shear strength through an instantaneous high-pressure processing process based on the cold extrusion deformation of the plate material itself. It can connect two or more layers of plates of different materials and thicknesses.

[0003] The rivet head is an important component installed on the riveting machine. Its main function is to apply downward extrusion force to the rivet, and rivet the rivet to the designated hole position of the sheet metal, so as to facilitate the later splicing and assembly operations of the sheet metal. However, the rivet heads used in the existing riveting devices still have shortcomings: in actual operation, the user is required to adjust the hole position of the sheet metal to the processing station of the riveting machine, and then the operator is required to manually insert the rivet into the hole position of the sheet metal before subsequent riveting processing can be carried out. Since most of the rivet heads on the market are not equipped with a safety error-proofing structure, there is a safety hazard that the rivet head may injure the operator's hand during the continuous operation of the riveting press. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the riveting head used in the current riveting device is difficult to prevent the operator's hands from being injured during the riveting process, and the riveting process has poor safety, and to propose a riveting head for an error-proof riveting device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A riveting head for an error-proof riveting device includes a riveting seat and a head arranged at the axis center of the lower end of the riveting seat. The head and the riveting seat are split structures. The head is installed in the inner cavity of the lower end of the riveting seat through a sliding support part. A sliding lock mechanism for vertically limiting the head is provided between the front and rear ends of the riveting seat. An electric control part that works in conjunction with the sliding lock mechanism is provided between the riveting seat and the head.

[0007] As a further description of the above technical solution:

[0008] The sliding lock mechanism includes a horizontal rail symmetrically fixed on the front and rear ends of the riveting seat and connected to the inner cavity of the riveting seat, a magnetic stopper slidably installed on the inner side of the horizontal rail and abutting against the upper end of the pressure head, a soft iron core installed on the outer side of the horizontal rail, a wire coil evenly wound around the outside of the soft iron core, and a folded spring installed between the horizontal rail, the soft iron core and the inner cavity of the magnetic stopper.

[0009] As a further description of the above technical solution:

[0010] The electronic control unit includes a pressure sensor installed on the inner side of the lower end of the pressure head, a current sensor installed on the lower end of the riveting seat and coaxial with the pressure head, a controller installed at the front end of the riveting seat and a warning light installed at the front end of the controller.

[0011] As a further description of the above technical solution:

[0012] The output ends of the pressure sensor and the current sensor are both electrically connected to the input end of the controller, and the output end of the controller is electrically connected to the input end of the wire coil and the warning light respectively.

[0013] As a further description of the above technical solution:

[0014] The sliding support part includes a vertical rod fixed on the inner side of the riveting seat and passing through the pressure head, a vertical groove opened on the upper end of the pressure head and corresponding to the vertical rod, and a spiral extrusion spring sleeved on the outer side of the vertical rod and located between the riveting seat and the pressure head.

[0015] As a further description of the above technical solution:

[0016] The sliding support part also includes internal screw holes symmetrically opened on both sides of the upper end of the pressure head, a limiting column horizontally screwed on the internal screw holes through threads and passing through the riveting seat, and a limiting groove opened on the left and right sides of the riveting seat and corresponding to the limiting column.

[0017] As a further description of the above technical solution:

[0018] An installation slot is provided at the axis center of the upper end of the riveting seat, and a fastening bolt connected to the installation slot is screwed horizontally on the top of the front end of the riveting seat.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0020] 1. In the present invention, the original integrated riveting head is improved into a split structure, and a horizontal rail, a magnetic stopper, a folding spring, a soft iron core, a pressure sensor, a current sensor and a controller are arranged between the riveting seat and the pressure head. When the operator's hand touches the pressure head, the current sensor can detect that the current of the pressure head becomes smaller. At the same time, when the lower end of the pressure head touches an object, the controller can control the wire coil to energize. At this time, the soft iron core will generate electromagnetic force. Under the action of the magnetic force, the magnetic stopper will slide outward in the horizontal rail to separate from the pressure head. At this time, the pressure head can slide inward into the riveting seat when it is pressurized. This structure can prevent the riveting head from impacting and injuring the hand when the operator's hand accidentally touches the riveting head in the working state, effectively reducing the occurrence of safety accidents during the riveting process, thereby improving the safety of the riveting device.

[0021] 2. In the present invention, a warning light is also provided on the controller. When the operator's hand touches the pressure head, the current sensor detects that the pressure head current becomes smaller, and the current sensor transmits the current data to the controller. After the controller analyzes and calculates the current data, it can control the warning light to light up continuously. This structure can send a light signal to remind the operator when the operator's hand touches the pressure head, which can effectively warn the operator, thereby further improving the safety of the riveting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-axis measurement of the riveting head used in the error-proof riveting device proposed by the present invention;

[0023] Figure 2 It is a three-dimensional left-side schematic diagram of the present invention;

[0024] Figure 3 It is a three-dimensional explosion schematic diagram of the present invention;

[0025] Figure 4 It is a right-side vertical cross-sectional schematic diagram of the present invention;

[0026] Figure 5 This is a block diagram of the power connection part of the present invention.

[0027] Legend:

[0028] 1. Rivet press seat; 101. Mounting slot; 102. Fastening bolt; 103. Limiting slot; 104. Horizontal rail; 105. Vertical rod; 2. Pressure head; 201. Vertical slot; 202. Internal screw hole; 203. Limiting column; 3. Pressure sensor; 4. Current sensor; 5. Soft iron core; 501. Wire coil; 6. Folding spring; 7. Magnetic stopper; 8. Controller; 801. Warning light; 9. Helical extrusion spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0030] See also Figure 1-5The present invention provides a technical solution: a riveting head for an error-proof riveting device, comprising a riveting seat 1 and a ram 2 arranged at the axis center of the lower end of the riveting seat 1. The ram 2 and the riveting seat 1 are split structures. The ram 2 is movably installed in the inner cavity of the lower end of the riveting seat 1 through a sliding support portion. A sliding lock mechanism for vertically limiting the ram 2 is provided between the front and rear ends of the riveting seat 1, and an electric control unit that cooperates with the sliding lock mechanism is provided between the riveting seat 1 and the ram 2.

[0031] Specifically, such as Figure 1-4 As shown, the sliding lock mechanism includes a transverse rail 104 symmetrically fixed on the front and rear ends of the riveting seat 1 and connected to the inner cavity of the riveting seat 1, a magnetic stopper 7 slidably installed on the inner side of the transverse rail 104 and abutting against the upper end of the pressing head 2, a soft iron core 5 installed on the outer side of the transverse rail 104, a wire coil 501 evenly wound around the outside of the soft iron core 5, and a folding spring 6 installed between the transverse rail 104, the soft iron core 5 and the inner cavity of the magnetic stopper 7. On the one hand, the folding spring 6 can normally keep the magnetic stopper 7 and the pressing head 2 in an overlapping state, thereby preventing the pressing head 2 from sliding up under force in the riveting seat 1. On the other hand, when the wire coil 501 is powered off, the magnetic force of the soft iron core 5 will disappear, and under the action of the elastic force of the folding spring 6, the magnetic stopper 7 will be reset to the initial overlapping state.

[0032] Specifically, such as Figure 1-5 As shown, the electronic control part includes a pressure sensor 3 installed on the inner side of the lower end of the pressure head 2, a current sensor 4 installed at the lower end of the riveting seat 1 and coaxial with the pressure head 2, a controller 8 installed at the front end of the riveting seat 1 and a warning light 801 installed at the front end of the controller 8. The warning light 801 can emit light after being powered on to remind the operator that his limbs have touched the pressure head 2.

[0033] The output ends of the pressure sensor 3 and the current sensor 4 are electrically connected to the input ends of the controller 8, and the output end of the controller 8 is electrically connected to the input ends of the wire coil 501 and the prompt light 801 respectively. The pressure sensor 3 and the current sensor 4 can transmit pressure data and current data to the controller 8 in real time. After the controller 8 analyzes and calculates the pressure data and current data, it will control the wire coil 501 and the prompt light 801 to perform corresponding work.

[0034] Specifically, such as Figure 1-4 As shown, the sliding support part includes a vertical rod 105 fixed on the inner side of the riveting seat 1 and passing through the pressing head 2, a vertical groove 201 opened at the upper end of the pressing head 2 and corresponding to the vertical rod 105, and a spiral extrusion spring 9 sleeved on the outside of the vertical rod 105 and located between the riveting seat 1 and the pressing head 2. The setting of the vertical rod 105 and the vertical groove 201 improves the stability of the lifting, sliding and adjusting of the pressing head 2 in the riveting seat 1. At the same time, the setting of the spiral extrusion spring 9 facilitates the elastic reset operation of the pressing head 2 in the riveting seat 1, thereby facilitating the subsequent use of the riveting head.

[0035] The sliding support part also includes internal screw holes 202 symmetrically opened on both sides of the upper end of the pressing head 2, limiting columns 203 screwed horizontally on the internal screw holes 202 through threads and passing through the riveting seat 1, and limiting grooves 103 opened on the left and right sides of the riveting seat 1 and corresponding to the limiting columns 203. The setting of the limiting columns 203 and the limiting grooves 103 improves the stability of the pressing head 2 in the lifting, sliding and adjustment in the riveting seat 1.

[0036] Specifically, such as Figure 1-4 As shown, a mounting slot 101 is provided at the axis center of the upper end of the riveting seat 1, and a fastening bolt 102 connected to the mounting slot 101 is horizontally screwed and installed on the top of the front end of the riveting seat 1. The comprehensive setting of the mounting slot 101 and the fastening bolt 102 makes it easy for the riveting seat 1 to be plugged and fixed on the designated work station of the riveting device.

[0037] Working principle: When in use, the mounting slot 101 on the beam riveting seat 1 can be aligned and inserted upward onto the driving shaft of the riveting device, and then the fastening bolt 102 can be tightened with a tool, and the circuit of the controller 8 can be connected to the control terminal of the riveting device to complete the assembly operation between the riveting head and the riveting device. During actual use, the controller 8 can generate an initial detection current for the riveting seat 1 and the pressure head 2 of the metal part through the circuit. When the operator's hand does not touch the pressure head 2, the magnetic block 7 will lock the pressure head 2 at a fixed point in the riveting seat 1, and the pressure head 2 can rivet the rivet on the designated hole position of the sheet metal. When the operator's limb touches the pressure head 2, the current sensor 4 will detect that the current of the pressure head 2 is separated in parallel, and the current sensor 4 will transmit the current data to the controller 8 in real time. The controller 8 will control the prompt light 801 to work in advance, thereby sending out a light signal to remind the operator that his hand has touched the pressure head 2. When the operator's hand continues to touch and operate the riveting device, the riveting head as a whole will move downward. When the lower end of the pressure head 2 squeezes and contacts the object, the pressure sensor 3 will be pressurized to generate a pressure signal, and the pressure signal will be transmitted to the controller 8 in real time. The controller 8 can control the wire coil 501 to be energized. When the wire coil 501 is energized, the soft iron core 5 will generate electromagnetic force. Under the action of the magnetic attraction force, the magnetic block 7 will slide outward in the cross rail 104 to separate from the pressure head 2 part. At this time, the locking state between the riveting seat 1 and the pressure head 2 is released. When the pressure head 2 squeezes the object downward, it will gradually hide and shrink into the riveting seat 1, thereby preventing the pressure head 2 from impacting the operator's hand.

[0038] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A riveting head for an error-proof riveting device, comprising a riveting seat (1) and a pressing head (2) arranged at the axis of the lower end of the riveting seat (1), characterized in that: The pressing head (2) and the riveting seat (1) are of a split structure. The pressing head (2) is movably mounted in the inner cavity of the lower end of the riveting seat (1) through a sliding support portion. A sliding lock mechanism for vertically limiting the pressing head (2) is provided between the front end and the rear end of the riveting seat (1). An electric control unit that cooperates with the sliding lock mechanism is provided between the riveting seat (1) and the pressing head (2). The sliding lock mechanism comprises a transverse rail (104) symmetrically fixed on the front and rear ends of the riveting seat (1) and connected to the inner cavity of the riveting seat (1), a magnetic stopper (7) slidably mounted on the inner side of the transverse rail (104) and abutting against the upper end of the pressure head (2), a soft iron core (5) mounted on the outer side of the transverse rail (104), a wire coil (501) uniformly wound around the outer side of the soft iron core (5), and a folded spring (6) mounted between the transverse rail (104), the soft iron core (5), and the inner cavity of the magnetic stopper (7); The electric control unit comprises a pressure sensor (3) installed on the inner side of the lower end of the pressure head (2), a current sensor (4) installed at the lower end of the riveting seat (1) and coaxial with the pressure head (2), a controller (8) installed at the front end of the riveting seat (1), and a warning light (801) installed at the front end of the controller (8).

2. A riveting head for an error-proof riveting device according to claim 1, characterized in that: The output ends of the pressure sensor (3) and the current sensor (4) are both electrically connected to the input end of the controller (8), and the output end of the controller (8) is electrically connected to the input ends of the wire coil (501) and the warning light (801), respectively.

3. The riveting head for an error-proof riveting device according to claim 1, characterized in that: The sliding support portion comprises a vertical rod (105) fixed on the inner side of the riveting seat (1) and passing through the pressing head (2), a vertical groove (201) provided at the upper end of the pressing head (2) and corresponding to the vertical rod (105), and a spiral extrusion spring (9) sleeved on the outer side of the vertical rod (105) and located between the riveting seat (1) and the pressing head (2).

4. A riveting head for an error-proof riveting device according to claim 3, characterized in that: The sliding support portion further comprises inner screw holes (202) symmetrically provided on both sides of the upper end of the pressure head (2), a limiting column (203) screwed horizontally on the inner screw holes (202) through a thread and passing through the riveting seat (1), and a limiting groove (103) provided on the left and right sides of the riveting seat (1) and corresponding to the limiting column (203).

5. The riveting head for an error-proof riveting device according to claim 1, characterized in that: An installation slot (101) is provided at the axis center of the upper end of the riveting seat (1), and a fastening bolt (102) connected to the installation slot (101) is screwed horizontally on the top of the front end of the riveting seat (1).

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