Automatic rivet pulling device and automatic rivet pulling assembly line

Abstract

The application discloses an automatic riveting equipment, which comprises a rack and a riveting mechanism, wherein the riveting mechanism comprises a three-axis moving module and a riveting gun; two groups of support rails are fixedly arranged on the upper end surface of the rack and are distributed in front and back; the riveting mechanism is provided with two and is distributed in front and back; a conveying line is fixedly arranged on the upper end surface of the rack; side positioning mechanisms are arranged on the two sides of the conveying line; the side positioning mechanisms are located between the conveying line and the support rails; a top positioning mechanism is arranged on each side positioning mechanism; two end positioning mechanisms are arranged on the upper end surface of the rack; the end positioning mechanisms are lower than the conveying line during the movement of the shell to the conveying line; a jacking mechanism is fixedly arranged on the upper end surface of the rack and is used for jacking up the shell on the conveying line to separate the shell from the conveying line; when the shell is separated from the conveying line, the two riveting mechanisms simultaneously rivet multiple riveting points on the upper surface of the shell. The application can simultaneously rivet large-area planar shells and improve the riveting efficiency.

Description

Technical Field

[0001] This invention relates to riveting equipment, and more particularly to an automatic riveting equipment and an automatic riveting production line. Background Technology

[0002] Currently, when riveting housings (such as the housing components of new energy lithium battery modules), riveting machines are used. For example, the invention patent published on April 28, 2023, with publication number CN116031462A, discloses a riveting equipment for lithium battery module production lines to achieve automated riveting of lithium battery modules. It includes: a frame, an end positioning mechanism for positioning the ends of the battery cells, a top pressing mechanism for elastically pressing the battery cells onto the end positioning mechanism, a side positioning mechanism for positioning the sides of the battery cells after being pressed by the top pressing mechanism, a side plate for positioning and attaching a side plate to the side of the battery cells, and a riveting mechanism for riveting the end plate and the side plate. The top pressing mechanism and the side positioning mechanism are mounted on the gantry of the frame. However, when riveting large-area flat shells, there are many riveting points located on the upper surface of the large-area flat shell. If the top clamping mechanism and the side positioning mechanism are set directly above, the riveting equipment cannot be equipped with multiple riveting guns to simultaneously rivet multiple riveting positions on the upper surface of the large-area flat shell, which affects the riveting efficiency. Therefore, this equipment is not suitable for riveting large-area flat shells. Summary of the Invention

[0003] To overcome the above-mentioned shortcomings, the purpose of this invention is to provide an automatic riveting equipment and automatic riveting production line that can simultaneously rivet large-area planar shells without affecting the riveting operation by positioning the shells, thereby improving riveting efficiency.

[0004] To achieve the above objectives, one technical solution adopted by the present invention is: an automatic riveting device, including a frame and a riveting mechanism, wherein the riveting mechanism includes a three-axis moving module and a riveting gun, the three-axis moving module drives the riveting gun to move in the up-down, left-right, and front-back directions, two sets of support rails are fixedly arranged on the upper end face of the frame, and two riveting mechanisms are provided, arranged front-back, and respectively installed on a set of support rails corresponding to them; a conveyor line is fixedly arranged on the upper end face of the frame, located between the two sets of support rails; side positioning mechanisms are provided on both sides of the conveyor line, and the side positioning mechanisms are located on the conveyor... Between the line and the support rail, two side positioning mechanisms are used to center the housing; each side positioning mechanism is provided with a top positioning mechanism, which is used to press the top of the housing; two end positioning mechanisms are provided on the upper end face of the frame, which are used to position the front and rear ends of the housing, and the end positioning mechanisms are lower than the conveyor line during the process of the housing running to the conveyor line; a lifting mechanism is fixed on the upper end face of the frame, which can lift the housing on the conveyor line until it is removed from the conveyor line; when the housing is removed from the conveyor line, two riveting mechanisms simultaneously rivet multiple riveting points on the upper surface of the housing.

[0005] Preferably, each side positioning mechanism includes: a support plate slidably mounted on the upper surface of the frame via at least two side positioning slide rails; at least one side positioning cylinder fixed to the upper surface of the frame and connected to the support plate for driving the support plate to move left and right; a buffer limiter is provided on the frame to restrict the movement of the support plate; and several side positioning rollers perpendicular to the upper surface of the frame and rotatably mounted inside the support plate, the side positioning rollers running in the front-back direction and able to abut against the side walls on both sides of the housing. The synchronous left-right movement of several side positioning rollers driven by a support plate ensures the consistency of the movement of the rollers. The buffer limiter provides positioning of the support plate at its extreme position. The contact between the side positioning rollers and the side walls of the housing utilizes line-surface contact to reduce friction on the side walls, facilitating the sliding of the housing on the conveyor line.

[0006] Preferably, the top positioning mechanism includes: multiple top positioning cylinders fixedly mounted on the upper surface of the support plate; multiple top limiters, each top limiter being mounted on the telescopic shaft of its corresponding top positioning cylinder via a connecting rod; each top limiter is raised and lowered by the drive of the top positioning cylinder, and the bottom of each top limiter is used to press against the upper surface of the housing. Directly mounting the top positioning cylinders on the support plate ensures that top positioning is achieved simultaneously during side positioning of the housing, stably positioning the sides and top of the housing.

[0007] Preferably, two conveyor lines are provided, located on both sides of the upper surface of the frame. Each conveyor line includes multiple parallel conveyor rollers, and the conveying direction of each conveyor line is forward and backward. The two conveyor lines are spaced apart by a predetermined distance, and the two end positioning mechanisms are located at the front and rear ends of the predetermined distance. The provision of two conveyor lines provides clearance for the installation of the two end positioning mechanisms, making the entire equipment structure compact.

[0008] Preferably, the lifting mechanism includes: a lifting plate located above the frame, with multiple extension arms on the upper surface of the lifting plate, each extension arm capable of passing through a conveyor roller, and a lifting pad connected to the end of each extension arm; a lifting cylinder fixedly mounted on the frame for driving the lifting plate to rise and fall; the lifting pad can be raised above or lowered below the conveyor line by the driving force of the lifting cylinder. The conveyor line adopts a roller structure, which, combined with the structure of the extension arms, allows the extension arms to pass through the conveyor rollers, achieving maximum space utilization through an embedded design.

[0009] Preferably, the end of the extension arm is provided with a horizontal adjustment plate, and the upper surface of the horizontal adjustment plate is provided with a left-right oriented adjustment guide rail. The lifting pad is slidably disposed on the adjustment guide rail, and the lifting pad can be locked in any position on the horizontal adjustment plate by the cooperation of several bolts and bolt holes. By adjusting the position of the lifting pad to support housings of different shapes, housings of different specifications can be riveted together.

[0010] Preferably, the end positioning mechanism includes: two end limiters installed at the front and rear ends of the base plate, the base plate being fixedly installed on the upper surface of the frame; a sliding plate slidably mounted on the upper surface of the base plate via an end slide rail, with slots provided on both sides of the front and rear ends of the sliding plate, each end limiter abutting against its corresponding slot; an end cylinder fixedly mounted on the base plate for driving the sliding plate to move back and forth; a fixed support seat fixedly mounted on the upper surface of the sliding plate; a rotating support seat rotatably mounted above the fixed support seat via a rotating shaft, with an end positioning roller provided on the top of the fixed support seat; and a flipping cylinder mounted on the sliding plate for driving the rotating support seat to flip 90°; the end positioning roller has a horizontal state and a vertical state; when the end positioning roller is flipped to the vertical state, the axial direction of the end positioning roller is perpendicular to the housing, and the circumferential wall of the end positioning roller abuts against the front or rear side wall of the housing; when the end positioning roller is flipped to the horizontal state, the end positioning roller is lower than the housing. The flip cylinder is used to flip the end positioning roller, and the end cylinder is used to move the fixed support, rotating support, and end positioning roller together back and forth.

[0011] Preferably, both ends of the rotating shaft are fixedly connected to the rotating support, and the rotating shaft and the fixed support are rotatably connected via bearings; a drive connector is fixedly mounted on the rotating shaft; an end support is provided on the sliding plate, the cylinder body of the tilting cylinder is rotatably connected to the end support, the telescopic shaft of the tilting cylinder is rotatably connected to the drive connector, and a clearance hole is provided on the sliding plate for the tilting cylinder to rotate, the clearance hole being located below the tilting cylinder. If the connection position between the cylinder body of the tilting cylinder and the end support is too low, the clearance hole can provide clearance space for the cylinder body of the tilting cylinder to rotate.

[0012] Preferably, a horizontal state limiting plate and a vertical state limiting plate are fixedly installed on the rotating shaft. The horizontal state limiting plate and the vertical state limiting plate are staggered and distributed at 90°. The upper end face of the sliding plate is provided with a first limiter and a second limiter for limiting the horizontal state limiting plate and the vertical state limiting plate respectively. The first limiter and the second limiter are arranged in opposite directions. The horizontal state limiting plate and the first limiter cooperate to limit the positioning roller that has been flipped to the horizontal state end; the vertical state limiting plate and the second limiter cooperate to limit the positioning roller that has been flipped to the vertical state end.

[0013] An automatic riveting production line includes the aforementioned automatic riveting equipment. The front and rear ends of the frame are respectively connected to an infeed conveyor line and an outfeed conveyor line that can be connected to the front and rear ends of a conveyor line. A protective cover is provided on the frame. The front and rear ends of the protective cover are respectively provided with an inlet and an outlet for the infeed conveyor line and the outfeed conveyor line to pass through. Each riveting mechanism is provided with at least one riveting gun.

[0014] The beneficial effects of the automatic riveting equipment and automatic riveting production line of the present invention are as follows: the side positioning mechanism and the top positioning mechanism are set on both sides of the frame, providing space for the two riveting mechanisms located above the conveyor line to rivet simultaneously. This is suitable for simultaneous riveting of large-area flat shells. The two end positioning mechanisms are recessed and set below the conveyor line. When positioning is required, they extend out of the conveyor line to position the front and rear ends of the shell. The avoidance design also provides clearance space for the two riveting mechanisms above to work simultaneously. The simultaneous operation of the two riveting mechanisms improves the riveting efficiency. Attached Figure Description

[0015] Figure 1 This is a perspective view of the automated riveting production line in this embodiment;

[0016] Figure 2 This is a perspective view of the automatic riveting equipment in this embodiment;

[0017] Figure 3 This is a top view of the automatic riveting equipment in this embodiment;

[0018] Figure 4 This is a perspective view of the housing cooperating with the side positioning mechanism and the top positioning mechanism in the automatic riveting equipment of this embodiment;

[0019] Figure 5 This is a perspective view of the lifting mechanism, side positioning mechanism, top positioning mechanism, and conveyor line working together in the automatic riveting equipment of this embodiment;

[0020] Figure 6 This is a perspective view showing the cooperation between the side positioning mechanism and the top positioning mechanism in the automatic riveting equipment of this embodiment.

[0021] Figure 7 This is a perspective view of the lifting mechanism in the automatic riveting equipment of this embodiment;

[0022] Figure 8 This is a perspective view of the frame and the two end positioning mechanisms cooperating in the automatic riveting equipment of this embodiment;

[0023] Figure 9 This is a perspective view of the end positioning mechanism at the first angle in the automatic riveting equipment of this embodiment;

[0024] Figure 10 This is a perspective view of the end positioning mechanism in the automatic riveting equipment of this embodiment from the second angle;

[0025] Figure 11 This is a perspective view of the end positioning mechanism in the automatic riveting equipment of this embodiment;

[0026] Figure 12 This is a perspective view of the end positioning mechanism in the automatic riveting equipment of this embodiment;

[0027] Figure 13 This is a perspective view of the rotating support base in the automatic riveting equipment of this embodiment.

[0028] Attached Figure

[0029] 100. Automatic riveting equipment;

[0030] 110. Frame; 111. Support rails; 112. Base plate;

[0031] 120. Conveyor line; 121. Conveyor rollers;

[0032] 130. Side positioning mechanism; 131. Side positioning slide rail; 132. Support plate; 133. Side positioning roller; 134. Side positioning cylinder; 135. Buffer limiter; 136.

[0033] 140. Top positioning mechanism; 141. Top positioning cylinder; 142. Top limiter; 143. Connecting rod;

[0034] 150. Lifting mechanism; 151. Lifting plate; 152. Extension arm; 153. Horizontal adjustment plate; 154. Adjustment rail; 155. Lifting pad;

[0035] 160. End positioning mechanism; 161. End cylinder; 162. Slide plate; 162a. End support seat; 162b. Slot; 162c. Clearance hole; 163; 164. Rotating shaft; 164a. Drive connector; 164b. Horizontal limit plate; 164c. Vertical limit plate; 165. Tilting cylinder; 166a. First limiter; 166b. Second limiter; 167. End limiter; 168. Rotating support seat;

[0036] 170. Three-axis moving module; 180. Riveting gun; 190. Protective cover;

[0037] 210. Feed conveyor line; 220. Discharge conveyor line;

[0038] 300, housing; 310, riveting point. Detailed Implementation

[0039] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention. Example 1

[0040] See Figure 2-13 As shown, this embodiment discloses an automatic riveting device 100, including a frame 110 and a riveting mechanism. The riveting mechanism includes a three-axis moving module 170 and a riveting gun 180. The three-axis moving module 170 adopts an existing three-axis moving module and drives the riveting gun 180 to move in the up-down, left-right, and front-back directions. The riveting gun head of the riveting gun 180 faces downward and welds the riveting point 310 on the upper surface of the housing 300.

[0041] In this embodiment, the upper surface of the frame 110 is fixedly provided with two sets of support rails 111 distributed front and rear. The front set of support rails 111 includes two support rails 111 located on both sides of the front end of the frame 110; the rear set of support rails 111 also includes two support rails 111 located on both sides of the rear end of the frame 110. Two riveting mechanisms are also provided and distributed front and rear. One riveting mechanism is installed on the front set of support rails 111, and the other riveting mechanism is installed on the rear set of support rails 111. The two riveting mechanisms can work simultaneously to rivet multiple riveting points 310 on the upper surface of the housing 300. Each riveting mechanism may include one riveting gun 180 or two riveting guns 180, depending on actual needs. This improves the riveting efficiency for large flat surfaces like the housing 300 with multiple riveting points 310.

[0042] A conveyor line 120 is fixedly installed on the upper surface of the frame 110, located between two sets of support rails 111. The conveyor line 120 is arranged in a front-to-back direction. The housing 300 is conveyed by the conveyor line 120 and passes between the two sets of support rails 111. The riveting mechanism is located above the housing 300 on the conveyor line 120.

[0043] like Figure 3 As shown, there are two conveyor lines 120 located on both sides of the upper surface of the frame 110. Each conveyor line 120 includes multiple parallel conveyor rollers 121. The conveying direction of each conveyor line 120 is front and back. The two conveyor lines 120 are spaced apart by a predetermined distance.

[0044] Side positioning mechanisms 130 are provided on both sides of the conveyor line 120. The side positioning mechanisms 130 are located between the conveyor line 120 and the support rail 111. The two side positioning mechanisms 130 are used to center the housing 300.

[0045] like Figure 5 , Figure 6As shown, each side positioning mechanism 130 includes: a support plate 132, two side positioning cylinders 134, and several side positioning rollers 133. In this embodiment, the support plate 132 is slidably mounted on the upper surface of the frame 110 via three side positioning slide rails 131. The two side positioning cylinders 134 are fixed to the upper surface of the frame 110 and connected to the support plate 132, used to drive the support plate 132 to move left and right (in both directions). A buffer limiter 135 is provided on the frame 110 to restrict the movement of the support plate 132. The buffer limiter 135 is positioned... At the limit position restricting the movement of the support plate 132, several side positioning rollers 133 are rotatably arranged inside the support plate 132 (towards the conveyor line 120). Each side positioning roller 133 is perpendicular to the upper end face of the frame 110. The running direction of the side positioning rollers 133 is the front-back direction. When the housing 300 is moved to the conveyor line 120, the side positioning cylinder 134 drives the housing 300 on the conveyor line 120 to move closer to the center. The side positioning rollers 133 abut against the side walls on both sides of the housing 300 to reduce friction.

[0046] Each side positioning mechanism 130 is provided with a top positioning mechanism 140, which is used to press against the top surface of the housing 300 on the conveyor line 120; such as Figure 6 As shown, the top positioning mechanism 140 includes multiple top positioning cylinders 141 and multiple top limiters 142. The multiple top positioning cylinders 141 are fixedly installed on the upper end face of the support plate 132. Each top limiter 142 is installed on the telescopic shaft of its corresponding top positioning cylinder 141 via a connecting rod 143. Each top limiter 142 is raised and lowered by the drive of the top positioning cylinder 141. The bottom of each top limiter 142 is used to press against the upper surface of the housing 300. When the housing 300 is conveyed onto the conveyor line 120, after the two side positioning mechanisms 130 center the housing 300, the top positioning cylinders 141 drive the top limiters 142 to descend and press against the upper surface of the housing 300.

[0047] Two end positioning mechanisms 160 are provided on the upper surface of the frame 110. The two end positioning mechanisms 160 are located at the front and rear ends of a predetermined distance between the two conveyor lines 120. When the housing 300 runs on the conveyor line 120, the two end positioning mechanisms 160 position the front and rear ends of the housing 300.

[0048] like Figures 9 to 13 As shown, each end positioning mechanism 160 includes: a sliding plate 162, an end cylinder 161, a fixed support 163, a rotating support 168, and a tilting cylinder 165, wherein:

[0049] The slide plate 162 is slidably mounted on the upper surface of the base plate 112 via the end slide rail 112a. The front and rear ends of the slide plate 162 are provided with slots 162b on both sides. The upper surface of the frame 110 is fixedly mounted with the base plate 113. The front and rear ends of the upper surface of the base plate 112 are respectively provided with an end limiter 167, and each end limiter 167 can abut against its corresponding slot 162b.

[0050] The end cylinder 161 is fixedly mounted on the base plate 112 and is used to drive the slide plate 162 to move back and forth;

[0051] The fixed support 163 is fixedly installed on the upper end face of the slide plate 162;

[0052] The rotating support 168 is rotatably mounted above the fixed support 163 via the rotating shaft 164, and the top of the fixed support 163 is provided with an end positioning roller 169.

[0053] A tilting cylinder 165 is mounted on a sliding plate 162 to drive the rotating support 168 to tilt 90°.

[0054] like Figure 13 As shown, the two ends of the rotating shaft 164 are fixedly connected to the rotating support 168, and the rotating shaft 164 is rotatably connected to the fixed support 163 through bearings; a drive connector 164a is fixedly installed on the rotating shaft 164; an end support 162a is provided on the slide plate 162, the cylinder body of the tilting cylinder 165 is rotatably connected to the end support 162a, the telescopic shaft of the tilting cylinder 165 is rotatably connected to the drive connector 164a, and a clearance hole 162c for the tilting cylinder 165 to rotate is provided on the slide plate 162, the clearance hole 162c being located below the tilting cylinder 165. In addition, a horizontal state limiting plate 164b and a vertical state limiting plate 164c are fixedly installed on the rotating shaft 164. The horizontal state limiting plate 164b and the vertical state limiting plate 164c are staggered and distributed at 90°. The upper end face of the slide plate 162 is provided with a first limiter 166a and a second limiter 166b for limiting the horizontal state limiting plate 164b and the vertical state limiting plate 164c respectively. The first limiter 166a and the second limiter 166b are arranged in opposite directions.

[0055] The end positioning roller 169 is driven by the tilting cylinder 165 and has a horizontal state and a vertical state.

[0056] When the telescopic rod of the tilting cylinder 165 retracts, it drives the rotating shaft 164 to rotate via the drive connector 164a. The rotating support 168 then rotates to a horizontal position, and the end positioning roller 169 located at the top of the fixed support 163 is tilted to a horizontal position. When the end positioning roller 169 is tilted to a horizontal position, it is lower than the housing 300, at which point the housing 300 can enter the conveyor line 120. At the same time, the horizontal position limiting plate 164b is limited by the first limiter 166a.

[0057] When the telescopic rod of the tilting cylinder 165 extends, it drives the rotating shaft 164 to rotate in the opposite direction through the drive connector 164a, and the rotating support 168 rotates in the opposite direction to the vertical state. When the end positioning roller 169 is tilted to the vertical state, the end positioning roller 169 is in the vertical state. At this time, the axis of the end positioning roller 169 is perpendicular to the housing 300, and the circumferential wall of the end positioning roller 169 abuts against the front or rear side wall of the housing 300 to position the front and rear ends of the housing 300. At the same time, the vertical state limiting plate 164c is limited by the second limiter 166b.

[0058] In this embodiment, a lifting mechanism 150 is fixed on the upper surface of the frame 110. When riveting the upper surface of the housing 300, the housing 300 is first lifted up and then riveted. In this embodiment, the lifting mechanism 150 can lift the housing 300 on the conveyor line 120 until it is removed from the conveyor line 120. When the housing 300 is removed from the conveyor line 120, the two riveting mechanisms simultaneously rivet multiple riveting points 310 on the upper surface of the housing 300.

[0059] like Figure 7 As shown, the lifting mechanism 150 includes a lifting plate 151 and a lifting cylinder. The lifting plate 151 is located above the frame 110. Multiple extension arms 152 are provided on the upper surface of the lifting plate 151. Each extension arm 152 can pass through the conveying roller 121. The end of the extension arm 152 is connected to a lifting pad 155. The lifting pad 155 is used to support the bottom of the housing 300. The lifting cylinder is fixedly mounted on the frame 110 and drives the lifting plate 151 to rise and fall.

[0060] The lifting pad 155 can be raised above or lowered below the conveyor line 120 by the driving force of the lifting cylinder. When the lifting pad 155 is driven above the conveyor line 120, the housing 300 is in a riveted state; when the lifting pad 155 is driven below the conveyor line 120, the housing 300 is in a conveying and positioning state.

[0061] The position of the lifting pad 155 can be adjusted to suit different shapes of housing 300. The specific structure is as follows: a horizontal adjustment plate 153 is provided at the end of the extension arm 152, and an adjustment guide rail 154 with a left-right orientation is provided on the upper surface of the horizontal adjustment plate 153. The lifting pad 155 is slidably disposed on the adjustment guide rail 154. The lifting pad 155 can be locked in any position of the horizontal adjustment plate 153 by the cooperation of several bolts and bolt holes. Example 2

[0062] See Figure 1 As shown, an automatic riveting production line includes an automatic riveting device 100 as described in Embodiment 1. The front and rear ends of a frame 110 are respectively connected to an infeed conveyor line 210 and an outfeed conveyor line 220, which can connect to the front and rear ends of a conveyor line 120, respectively. A protective cover 190 is provided on the frame 110. The front and rear ends of the protective cover 190 have inlets and outlets for the infeed conveyor line 210 and the outfeed conveyor line 220, respectively. Each riveting mechanism has at least one riveting gun 180. The housing 300 enters the automatic riveting device 100 from the infeed conveyor line 210 for riveting. After riveting, the lifting mechanism 150 lowers the housing 300 onto the conveyor line 120. The side positioning mechanisms 130 and the top positioning mechanism 140 on both sides move outwards and reset, and the end positioning rollers 169 of the end positioning mechanisms 160 at the front and rear ends rotate to a horizontal state. The housing 300 is then conveyed out of the protective cover 190 by the conveyor line 120 and enters the outfeed conveyor line 220.

[0063] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic riveting device (100), comprising a frame (110) and a riveting mechanism, wherein the riveting mechanism includes a three-axis moving module (170) and a riveting gun (180), wherein the three-axis moving module (170) drives the riveting gun (180) to move in the up-down, left-right, and front-back directions, characterized in that: The upper end face of the frame (110) is fixedly provided with two sets of support rails (111) distributed in front and back. There are two riveting mechanisms distributed in front and back, which are respectively installed on the set of support rails (111) corresponding to them. A conveyor line (120) is fixedly installed on the upper surface of the frame (110), located between the two sets of support rails (111); Side positioning mechanisms (130) are provided on both sides of the conveyor line (120). The side positioning mechanisms (130) are located between the conveyor line (120) and the support rail (111). The two side positioning mechanisms (130) are used to center the housing (300). Each of the side positioning mechanisms (130) is provided with a top positioning mechanism (140) for pressing the top of the housing (300); Two end positioning mechanisms (160) are provided on the upper surface of the frame (110). The two end positioning mechanisms (160) are used to position the front and rear ends of the housing (300). During the process of the housing (300) running to the conveyor line (120), the end positioning mechanism (160) is lower than the conveyor line (120). A lifting mechanism (150) is fixed on the upper end face of the frame (110). The lifting mechanism (150) can lift the housing (300) on the conveyor line (120) until it is removed from the conveyor line (120). When the housing (300) is removed from the conveyor line (120), the two riveting mechanisms simultaneously rivet multiple riveting points (310) on the upper surface of the housing (300); The end positioning mechanism (160) includes: Two end limiters (167) are installed at the front and rear ends of the base plate (112), which is fixedly installed on the upper surface of the frame (110). The slide plate (162) is slidably mounted on the upper surface of the base plate (112) via the end slide rail (112a). The front and rear ends of the slide plate (162) are provided with slots (162b) on both sides. Each end limiter (167) can abut against its corresponding slot (162b). An end cylinder (161) is fixedly mounted on the base plate (112) and is used to drive the slide plate (162) to move back and forth; A fixed support base (163) is fixedly installed on the upper end surface of the slide plate (162); A rotating support (168) is rotatably mounted above a fixed support (163) via a rotating shaft (164). An end positioning roller (169) is provided on the top of the fixed support (163). A tilting cylinder (165) is mounted on the slide plate (162) for driving the rotating support base (168) to tilt 90°. The end positioning roller (169) has a horizontal state and a vertical state; When the end positioning roller (169) is flipped to a vertical state, the axial direction of the end positioning roller (169) is perpendicular to the housing (300), and the circumferential wall of the end positioning roller (169) abuts against the front or rear side wall of the housing (300). When the end positioning roller (169) is flipped to a horizontal state, the end positioning roller (169) is lower than the housing (300).

2. The automatic riveting equipment (100) according to claim 1, characterized in that: Each of the side positioning mechanisms (130) includes: The support plate (132) is slidably mounted on the upper surface of the frame (110) via at least two side positioning slide rails (131); At least one side positioning cylinder (134) is fixed to the upper end face of the frame (110) and connected to the support plate (132) for driving the support plate (132) to move left and right. The frame (110) is provided with a buffer limiter (135) to restrict the movement of the support plate (132). Several side positioning rollers (133) are perpendicular to the upper surface of the frame (110) and are rotatably disposed inside the support plate (132). The side positioning rollers (133) run in the front-back direction and can abut against the side walls on both sides of the housing (300).

3. The automatic riveting equipment (100) according to claim 2, characterized in that: The top positioning mechanism (140) includes: Multiple top positioning cylinders (141) are fixedly installed on the upper end face of the support plate (132); Multiple top limiters (142), each of which is mounted on the telescopic shaft of its corresponding top positioning cylinder (141) via a connecting rod (143); Each of the top limiters (142) is raised and lowered by the drive of a top positioning cylinder (141), and the bottom of each of the top limiters (142) is used to press against the upper surface of the housing (300).

4. The automatic riveting equipment (100) according to claim 1, characterized in that: Two conveyor lines (120) are provided, located on both sides of the upper end face of the frame (110). Each conveyor line (120) includes multiple parallel conveyor rollers (121), and the conveying direction of each conveyor line (120) is forward and backward. The two conveyor lines (120) are spaced apart by a predetermined distance, and the two end positioning mechanisms (160) are located at the front and rear ends of the predetermined distance.

5. The automatic riveting equipment (100) according to claim 4, characterized in that: The lifting mechanism (150) includes: A lifting plate (151) is located above the frame (110). Multiple extension arms (152) are provided on the upper surface of the lifting plate (151). Each extension arm (152) can pass through the gap between the conveying rollers (121). The end of the extension arm (152) is connected to a lifting pad (155). A lifting cylinder is fixedly mounted on the frame (110) and is used to drive the lifting plate (151) to rise and fall; The lifting pad (155) is driven by the lifting cylinder to rise above the conveyor line (120) or fall below the conveyor line (120).

6. The automatic riveting equipment (100) according to claim 5, characterized in that: The end of the extension arm (152) is provided with a horizontal adjustment plate (153), and the upper surface of the horizontal adjustment plate (153) is provided with a left-right oriented adjustment guide rail (154). The lifting pad (155) is slidably disposed on the adjustment guide rail (154), and the lifting pad (155) can be locked at any position of the horizontal adjustment plate (153) through the cooperation of several bolts and bolt holes.

7. The automatic riveting equipment (100) according to claim 1, characterized in that: The two ends of the rotating shaft (164) are fixedly connected to the rotating support (168), and the rotating shaft (164) and the fixed support (163) are rotatably connected by bearings; A drive connector (164a) is fixedly installed on the rotating shaft (164). The slide plate (162) is provided with an end support seat (162a), the cylinder body of the tilting cylinder (165) is rotatably connected to the end support seat (162a), the telescopic shaft of the tilting cylinder (165) is rotatably connected to the drive connector (164a), the slide plate (162) is provided with a clearance hole (162c) for the tilting cylinder (165) to rotate, and the clearance hole (162c) is located below the tilting cylinder (165).

8. The automatic riveting equipment (100) according to claim 7, characterized in that: A horizontal state limiting plate (164b) and a vertical state limiting plate (164c) are fixedly installed on the rotating shaft (164). The horizontal state limiting plate (164b) and the vertical state limiting plate (164c) are staggered and distributed at 90°. The upper surface of the slide plate (162) is provided with a first limiter (166a) and a second limiter (166b) for respectively limiting the horizontal state limiter plate (164b) and the vertical state limiter plate (164c), and the first limiter (166a) and the second limiter (166b) are arranged in opposite directions.

9. An automated riveting production line, characterized in that: The automatic riveting equipment (100) according to any one of claims 1-8 is provided with a feed conveyor line (210) and a discharge conveyor line (220) respectively connected to the front and rear ends of the frame (110) and respectively connected to the front and rear ends of the conveyor line (120). A protective cover (190) is provided on the frame (110). The front and rear ends of the protective cover (190) are respectively provided with an inlet and an outlet through which the feed conveyor line (210) and the discharge conveyor line (220) pass. Each riveting mechanism has at least one riveting gun (180).

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