Automatic hot riveting equipment for injection molded parts

Abstract

The automatic hot riveting equipment comprises a machine table, a feeding assembly, a hot riveting transferring assembly and an injection molding part positioning assembly, the feeding assembly comprises a vibration feeding disc, a nut preheating assembly and a connecting sliding way, the nut preheating assembly comprises an isolation frame, a preheating installation base, a heat insulation column, a preheating block and a preheating heat insulation cover, and a preheating groove is formed in the top of the preheating block. The preheating groove comprises a main preheating groove, a leading-in groove and a leading-out groove, the preheating heat insulation cover is provided with a preheating feeding detection sensor, the hot riveting transferring assembly comprises a transferring mechanical arm and a nut suction nozzle assembly, the nut suction nozzle assembly comprises a transferring base, a hot riveting sliding base, a vacuum suction nozzle set and a hot riveting air cylinder, and the injection molding part positioning assembly comprises a positioning frame, a positioning block and an injection molding part pressing mechanism. According to the utility model, the nut is positioned and preheated through the preheating groove, so that the hot riveting time is shortened, the hot riveting position of an injection molding part can be quickly softened during hot riveting, and accurate hot riveting is facilitated; automatic hot riveting is achieved through the transfer manipulator, and the automation efficiency is high.

Description

Technical Field

[0001] This utility model relates to hot riveting equipment, and in particular to an automated hot riveting equipment for injection molded parts. Background Technology

[0002] Injection molded parts are widely used due to their ease of molding and excellent physical and chemical properties. During use, injection molded parts typically need to be connected to other equipment. Common connection methods for injection molded parts include threaded connections and snap-fit ​​connections. When using threaded connections, to ensure connection strength, nuts or screws are usually heat-riveted onto the injection molded part. Traditional heat riveting methods involve placing the nut or screw on the injection molded part, then heating and applying pressure with a heat riveting head. This method is inefficient, and in the initial stage of heat riveting, the pressure and softening of the injection molded part can easily cause the nut or screw to shift or tilt, resulting in poor riveting quality. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automated hot riveting equipment for injection molded parts.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an automated hot riveting equipment for injection molded parts, including a machine base. The machine base is equipped with a feeding assembly, a hot riveting transfer assembly, and an injection molded part positioning assembly. The feeding assembly includes a vibrating feeding disc, a nut preheating assembly, and a connecting slide connecting the outlet of the vibrating feeding disc and the inlet of the nut preheating assembly. The nut preheating assembly includes an isolation frame disposed on the machine base, a preheating mounting base disposed on the top of the isolation frame, a heat insulation column disposed on the preheating mounting base, a preheating block disposed on the top of the heat insulation column, and a preheating heat insulation cover disposed on the preheating mounting base. A preheating groove is disposed on the top of the preheating block. The preheating groove includes a main preheating groove, an inlet groove communicating with the head of the main preheating groove, and an inlet groove communicating with the tail of the main preheating groove. The preheating insulation cover is equipped with a preheating feeding detection sensor to detect the presence or absence of nuts in the outlet groove. The hot riveting transfer assembly includes a transfer manipulator mounted on the machine base and a nut suction nozzle assembly mounted on the transfer manipulator. The nut suction nozzle assembly includes a transfer base mounted on the transfer manipulator, a hot riveting slide that moves up and down along the transfer base, a vacuum suction nozzle group mounted on the hot riveting slide, and a hot riveting cylinder mounted on the transfer base. The hot riveting cylinder applies a downward thrust to the hot riveting slide. The injection molding part positioning assembly includes a positioning frame mounted on the machine base, a positioning block mounted on the top of the positioning frame, and an injection molding part clamping mechanism mounted on the positioning frame. The positioning block forms a positioning area for positioning the edge of the injection molding part.

[0005] As a further improvement to this design, the top of the preheating block is provided with a pressing strip, which extends along one side of the preheating groove and extends above the preheating groove.

[0006] As a further improvement to this design, the corner of the preheating tank is 90°, the preheating insulation cover is equipped with a push cylinder, the push cylinder is equipped with a push rod, the push cylinder corresponds one-to-one with the corner of the preheating tank, one push rod extends along the running direction of the nut in the main preheating tank, and the other push rod extends along the running direction of the nut in the outlet tank.

[0007] As a further improvement to this design, the vacuum nozzle assembly includes a heat-insulating heating base and a nozzle head disposed at the bottom of the heat-insulating heating base. The nozzle head has a positioning protrusion at the center of its bottom, and negative pressure holes are provided around the bottom of the nozzle head around the positioning protrusion. The nozzle head is made of thermally conductive copper. The heat-insulating cover surrounding the heat-insulating heating base is provided on the hot riveting slide.

[0008] As a further improvement to this design, the injection molding part clamping mechanism is a rotary cylinder.

[0009] As a further improvement to this design, the positioning frame is provided with a slide rail, the slide rail is provided with a movable pressure block, the movable pressure block is provided with a clamping column, the positioning frame is provided with a clamping spring that pulls the movable pressure block to move towards the positioning area, the positioning frame is provided with an unlocking cylinder that pushes the movable pressure block away from the positioning area, and no positioning block is provided on the side of the positioning area where the movable pressure block is located.

[0010] As a further improvement to this design, a dust collection hood is provided on one side of the positioning frame, and a purge nozzle is provided on the other side of the positioning frame, with the purge nozzle facing the positioning area.

[0011] As a further improvement to this design, the transfer robot includes a transfer frame, an X-axis linear module mounted on the transfer frame, a Y-axis linear module mounted on the X-axis linear module, and a Z-axis linear module mounted on the Y-axis linear module.

[0012] As a further improvement to this design, the Z-axis linear module is equipped with an upper detection camera, and the machine platform is equipped with a lower detection camera.

[0013] As a further improvement to this design, the machine base is provided with a feeding linear vibrating table, the feeding linear vibrating table is provided with a feeding box, the feeding box outlet is provided with a feeding gate, the feeding box outlet is located above the opening of the vibrating feeding plate, and the connecting slide is provided with a linear vibrator.

[0014] The beneficial effects of this utility model are: this utility model uses the preheating groove on the nut preheating assembly to position and preheat the nut, shortening the hot riveting time and facilitating the rapid softening of the hot riveting position of the injection molded part during hot riveting, which is convenient for precise hot riveting; the above-mentioned use of a transfer robot to realize automated hot riveting has high automation efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a three-dimensional schematic diagram of the feeding component of this utility model.

[0018] Figure 3 This is a three-dimensional schematic diagram of the nut preheating assembly of this utility model.

[0019] Figure 4 This is a three-dimensional schematic diagram of the nut preheating assembly of this utility model without a preheating insulation cover.

[0020] Figure 5 This is a schematic cross-sectional view of the nut preheating assembly of this utility model.

[0021] Figure 6 This is a three-dimensional structural diagram of the injection molding part positioning component of this utility model.

[0022] Figure 7 This is a bottom view schematic diagram of the injection molding part positioning component of this utility model.

[0023] Figure 8 This is a cross-sectional schematic diagram of the vacuum nozzle assembly of this utility model.

[0024] In the diagram: 1. Machine base; 2. Hot riveting transfer assembly; 20. Transfer robot; 200. Z-axis linear module; 201. Y-axis linear module; 202. X-axis linear module; 203. Transfer frame; 21. Nut suction nozzle assembly; 210. Hot riveting cylinder; 211. Transfer base; 212. Hot riveting slide; 213. Vacuum suction nozzle assembly; 2130. Insulated heating base; 2131. Suction nozzle head; 2132. Positioning protrusion; 2133. Negative pressure hole; 2134. Insulated heat shield; 3. Detection camera; 5. Feeding assembly; 50. Feeding box; 51. Feeding gate; 52. Vibrating feeder; 53. Connecting slide; 54. Nut preheating assembly; 540. Isolation frame. 541. Preheating heat shield, 542. Push cylinder, 543. Push rod, 544. Material clamping bar, 545. Preheating feeding detection sensor, 546. Preheating tank, 5460. Inlet tank, 5461. Main preheating tank, 5462. Outlet tank, 547. Heat insulation column, 548. Preheating block, 549. Preheating mounting base, 55. Feeding vibratory table, 56. Vibrator, 6. Detection camera, 7. Injection molded part positioning assembly, 70. Positioning frame, 71. Positioning block, 72. Positioning area, 73. Movable pressure block, 74. Injection molded part clamping mechanism, 75. Dust collection hood, 76. Compression spring, 77. Slide rail, 78. Compression column, 79. Unlocking cylinder, 710. Purge nozzle. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. Example

[0026] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5This embodiment provides an automated hot riveting equipment for injection molded parts, including a machine base 1. The machine base 1 is equipped with a feeding assembly 5, a hot riveting transfer assembly 2, and an injection molded part positioning assembly 7. The feeding assembly 5 includes a vibrating feeding plate 52, a nut preheating assembly 54, and a connecting slide 53 connecting the outlet of the vibrating feeding plate 52 and the inlet of the nut preheating assembly 54. The nut preheating assembly 54 includes an isolation frame 540 disposed on the machine base 1 and a top of the isolation frame 540. The preheating mounting base 549, the heat insulation column 547 disposed on the preheating mounting base 549, the preheating block 548 disposed on the top of the heat insulation column 547, and the preheating heat insulation cover 541 disposed on the preheating mounting base 549 are provided with a preheating groove 546 on the top of the preheating block 548. The preheating groove 546 includes a main preheating groove 5461, an inlet groove 5460 communicating with the head of the main preheating groove 5461, and an outlet groove 5460 communicating with the tail of the main preheating groove 5461. 62. The preheating insulation cover 541 is equipped with a preheating feeding detection sensor 545 for detecting the presence or absence of nuts in the outlet groove 5462. The hot riveting transfer assembly 2 includes a transfer robot 20 mounted on the machine base 1 and a nut suction nozzle assembly 21 mounted on the transfer robot 20. The nut suction nozzle assembly 21 includes a transfer base 211 mounted on the transfer robot 20, a hot riveting slide 212 that moves up and down along the transfer base 211, and a preheating feeding detection sensor 545 for detecting the presence or absence of nuts in the outlet groove 5462. The vacuum nozzle assembly 213 on the riveting slide 212 and the hot riveting cylinder 210 on the transfer base 211 apply a downward thrust to the hot riveting slide 212. The injection molding part positioning assembly 7 includes a positioning frame 70 on the machine base 1, a positioning block 71 on the top of the positioning frame 70, and an injection molding part clamping mechanism 74 on the positioning frame 70. The positioning block 71 forms a positioning area 72 for positioning the edge of the injection molding part.

[0027] The above-mentioned positioning and preheating of the nut by the preheating groove 546 on the nut preheating assembly 54 shortens the hot riveting time and facilitates the rapid softening of the hot riveting position of the injection molded part during hot riveting, which is convenient for precise hot riveting; the above-mentioned use of the transfer robot 20 realizes automated hot riveting, which has high automation efficiency.

[0028] Please see Figure 4 To prevent the nut from jumping out of the preheating groove 546, a pressure strip 544 is provided on the top of the preheating block 548. The pressure strip 544 extends along one side of the preheating groove 546 and extends above the preheating groove 546.

[0029] Please see Figure 3 and Figure 4To facilitate the smooth movement of the nut within the preheating groove 546, the preheating groove 546 has a 90° corner. The preheating insulation cover 541 is equipped with a push cylinder 542, and the push cylinder 542 is equipped with a push rod 543. The push cylinder 542 corresponds one-to-one with the corner of the preheating groove 546. One push rod 543 extends along the nut running direction in the main preheating groove 5461, and the other push rod 543 extends along the nut running direction in the outlet groove 5462.

[0030] Please see Figure 1 and Figure 8 The vacuum nozzle assembly 213 includes a heat-insulating heating base 2130 and a nozzle head 2131 disposed at the bottom of the heat-insulating heating base 2130. A positioning protrusion 2132 is provided at the center of the bottom of the nozzle head 2131, and negative pressure holes 2133 are provided around the bottom of the nozzle head 2131 around the positioning protrusion 2132. The nozzle head 2131 is made of thermally conductive copper. A heat-insulating cover 2134 surrounding the heat-insulating heating base 2130 is provided on the hot riveting slide 212. The positioning protrusion 2132 is used to control the nut from tilting and to facilitate faster heat transfer to the nut.

[0031] Please see Figure 6 In order to improve the clamping efficiency of injection molded parts, the injection molded part clamping mechanism 74 is a rotary cylinder.

[0032] Please see Figure 6 and Figure 7 To facilitate the positioning and clamping of the injection molded part's side, the positioning frame 70 is provided with a slide rail 77, the slide rail 77 is provided with a movable pressure block 73, the movable pressure block 73 is provided with a clamping column 78, the positioning frame 70 is provided with a clamping spring 76 that pulls the movable pressure block 73 to move towards the positioning area 72, the positioning frame 70 is provided with an unlocking cylinder 79 that pushes the movable pressure block 73 away from the positioning area 72, and the positioning area 72 is provided with no positioning block 71 on the side where the movable pressure block 73 is located.

[0033] Please see Figure 6 To reduce air pollution, a dust collection hood 75 is provided on one side of the positioning frame 70. To facilitate rapid cooling of the injection molded part after hot riveting, a blower nozzle 710 is provided on the other side of the positioning frame 70. The blower nozzle 710 faces the positioning area 72 to improve the efficiency and quality of hot riveting.

[0034] Please see Figure 1 To improve the flexibility and accuracy of the transfer robot 20, the transfer robot 20 includes a transfer frame 203, an X-axis linear module 202 mounted on the transfer frame 203, a Y-axis linear module 201 mounted on the X-axis linear module 202, and a Z-axis linear module 200 mounted on the Y-axis linear module 201.

[0035] Please see Figure 1 To ensure accurate material handling and precise hot riveting, the Z-axis linear module 200 is equipped with an upper detection camera 3. A lower detection camera 6 is also provided to facilitate detection of whether the machine base 1 is equipped with one.

[0036] Please see Figure 2 The machine base 1 is equipped with a feeding linear vibrating table 55, a feeding box 50 on the feeding linear vibrating table 55, a feeding gate 51 at the outlet of the feeding box 50, and the outlet of the feeding box 50 is located above the opening of the vibrating feeding plate 52. A linear vibrator 56 is provided on the connecting slide 53. The feeding gate 51 on the feeding box 50 can ensure a small amount of material is fed to the vibrating feeding plate 52, reducing the residence time of the nuts in the vibrating feeding plate 52 and reducing the wear of the nuts. The linear vibrator 56 can smoothly transport the nuts from the vibrating feeding plate 52 to the nut preheating assembly 54.

[0037] During operation, nuts are poured into the feeding box 50, which feeds a small amount of material into the vibrating feeding plate 52. The vibrating feeding plate 52 filters out the nuts and supplies them to the connecting slide 53. The connecting slide 53 sends the nuts into the preheating tank 546, and the push rod 543 assists in moving the nuts in the preheating tank 546. The vacuum nozzle assembly 213 picks up the nuts in the outlet groove 5462 in the preheating tank 546 and transfers them to the injection molding part hot riveting position on the injection molding part positioning assembly 7. The process of clamping the injection molding part on the injection molding part positioning assembly 7 is as follows: the unlocking cylinder 79 pushes the movable pressure block 73 away from the positioning area 72, placing the injection molding part into the positioning area 72. The unlocking cylinder 79 retracts, the clamping column 78 clamps the side of the injection molding part, the positioning blocks 71 are all in contact with the side of the injection molding part, and the injection molding part clamping mechanism 74 clamps the top surface of the injection molding part.

[0038] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automated hot riveting equipment for injection molded parts, characterized in that, The machine includes a feeding assembly, a hot riveting transfer assembly, and an injection molding part positioning assembly. The feeding assembly includes a vibrating feed pan, a nut preheating assembly, and a connecting slide connecting the outlet of the vibrating feed pan and the inlet of the nut preheating assembly. The nut preheating assembly includes an isolation frame on the machine, a preheating mounting base on top of the isolation frame, a heat insulation column on the preheating mounting base, a preheating block on top of the heat insulation column, and a preheating heat insulation cover on the preheating mounting base. The top of the preheating block has a preheating groove, which includes a main preheating groove, an inlet groove connecting the head of the main preheating groove, and an outlet groove connecting the tail of the main preheating groove. The preheating heat insulation cover has a detection... The preheated feeding detection sensor detects the presence or absence of nuts in the outlet groove. The hot riveting transfer assembly includes a transfer manipulator mounted on the machine base and a nut suction nozzle assembly mounted on the transfer manipulator. The nut suction nozzle assembly includes a transfer base mounted on the transfer manipulator, a hot riveting slide that moves up and down along the transfer base, a vacuum suction nozzle group mounted on the hot riveting slide, and a hot riveting cylinder mounted on the transfer base. The hot riveting cylinder applies a downward thrust to the hot riveting slide. The injection molding part positioning assembly includes a positioning frame mounted on the machine base, a positioning block mounted on the top of the positioning frame, and an injection molding part clamping mechanism mounted on the positioning frame. The positioning block forms a positioning area for positioning the edge of the injection molding part.

2. The automated hot riveting equipment for injection molded parts according to claim 1, characterized in that, The preheating block is provided with a pressing strip on the top, which extends along one side of the preheating groove and above the preheating groove.

3. The automated hot riveting equipment for injection molded parts according to claim 2, characterized in that, The preheating tank has a 90° corner. The preheating insulation cover is equipped with a push cylinder, and the push cylinder is equipped with a push rod. The push cylinder corresponds to the corner of the preheating tank. One push rod extends along the running direction of the nut in the main preheating tank, and the other push rod extends along the running direction of the nut in the outlet tank.

4. The automated hot riveting equipment for injection molded parts according to claim 1, characterized in that, The vacuum nozzle assembly includes a heat-insulating heating base and a nozzle head disposed at the bottom of the heat-insulating heating base. A positioning protrusion is provided at the center of the bottom of the nozzle head, and negative pressure holes are provided at the bottom of the nozzle head around the positioning protrusion. The nozzle head is made of thermally conductive copper material, and a heat-insulating cover surrounding the heat-insulating heating base is provided on the hot riveting slide.

5. An automated hot riveting equipment for injection molded parts according to claim 1, characterized in that, The injection molding part clamping mechanism is a rotary cylinder.

6. The automated hot riveting equipment for injection molded parts according to claim 1, characterized in that, The positioning frame is provided with a slide rail, the slide rail is provided with a movable pressure block, the movable pressure block is provided with a clamping column, the positioning frame is provided with a clamping spring that pulls the movable pressure block to move towards the positioning area, the positioning frame is provided with an unlocking cylinder that pushes the movable pressure block away from the positioning area, and the side of the positioning area where the movable pressure block is located is not provided with a positioning block.

7. An automated hot riveting equipment for injection molded parts according to claim 6, characterized in that, The positioning frame is equipped with a dust collection hood on one side and a purge nozzle on the other side, with the purge nozzle facing the positioning area.

8. An automated hot riveting equipment for injection molded parts according to claim 1, characterized in that, The transfer robot includes a transfer frame, an X-axis linear module mounted on the transfer frame, a Y-axis linear module mounted on the X-axis linear module, and a Z-axis linear module mounted on the Y-axis linear module.

9. An automated hot riveting equipment for injection molded parts according to claim 8, characterized in that, The Z-axis linear module is equipped with an upper detection camera, and the machine platform is equipped with a lower detection camera.

10. An automated hot riveting equipment for injection molded parts according to claim 8, characterized in that, The machine platform is equipped with a feeding linear vibrating table, the feeding linear vibrating table is equipped with a feeding box, the feeding box outlet is equipped with a feeding gate, the feeding box outlet is located above the opening of the vibrating feeding plate, and the connecting slide is equipped with a linear vibrator.

Images