Skirt board assembly spot welding machine

Abstract

The invention discloses an apron board assembly spot welding machine which comprises a first vertical frame, a second vertical frame, a first jacking body, a second jacking body, a jacking driver, a spot welding mechanism and a receiving and discharging mechanism. And the material receiving and discharging mechanism is arranged in a gap between the first vertical frame and the second vertical frame. The first jacking body and the second jacking body are located at a gap between the first vertical frame and the second vertical frame, the first jacking body is assembled on the first vertical frame, and the second jacking body is assembled on the second vertical frame; at least one of the first jacking and pressing body and the second jacking and pressing body is driven by the jacking and pressing driver to enable the end plate and the annular skirt belt which are supported by the material receiving and discharging mechanism to be arranged together in a sleeved mode so as to obtain a combined body, and the spot welding mechanism can move relative to the combined body so as to conduct circumferential spot welding on the end plate and the annular skirt belt in the combined body. By means of the apron board assembling spot welding machine, the jacking force between the end plate and the annular skirt band which are sleeved together can be greatly reduced, and deformation of the annular skirt band caused by the too large jacking force can be greatly reduced.

Description

Technical Field

[0001] The invention relates to the field of pipe pile production, and in particular to a skirt plate assembly spot welding machine which first sheathes an end plate and an annular skirt belt together and then pre-fixes them by spot welding. Background Art

[0002] As we all know, in the pipe pile industry, the skirt plate is composed of an end plate and an annular skirt belt; and in the assembly process of the skirt plate, the end plate and the annular skirt belt are first sleeved together, and then the sleeved end plate and the annular skirt belt are rotated together, and the rib pressing mechanism presses out annular ribs on the annular skirt belt to fix the annular skirt belt and the end plate together; therefore, the automated assembly of the skirt plate is inseparable from the use of assembly equipment.

[0003] However, in the existing assembly equipment, since it uses a rib pressing mechanism to roll out the annular ribs between the end plate and the annular skirt that are set together, and the end plate and the annular skirt that are set together need to rotate together during the process of pressing out the annular ribs, the assembly equipment applies a large top pressure to the end plate and the annular skirt that are set together, so as to prevent the end plate and the annular skirt from moving due to insufficient top pressure caused by the rib pressing mechanism during the process of rolling the annular ribs. Because the assembly equipment applies a large top pressure to the end plate and the annular skirt that are set together, there is a defect that causes the annular skirt to deform.

[0004] Therefore, there is an urgent need for a skirt assembly spot welding machine to overcome one or more of the above-mentioned defects. Summary of the invention

[0005] The object of the present invention is to provide a skirt plate assembly spot welding machine, which can greatly reduce the top pressure between the end plate and the annular skirt that are sheathed together, and the deformation of the annular skirt caused by excessive top pressure.

[0006] To achieve the above-mentioned purpose, the skirt assembly spot welding machine of the present invention comprises a first stand, a second stand, a first pressing body, a second pressing body, a pressing driver, a spot welding mechanism, and a material receiving and unloading mechanism for supporting the end plate and the annular skirt from below. The first stand is arranged oppositely and spaced apart from the second stand in the first direction, the first pressing body and the second pressing body are both located in the gap between the first stand and the second stand, the first pressing body is assembled on the first stand, the second pressing body is assembled on the second stand, the second pressing body is also arranged oppositely and spaced apart from the first pressing body in the first direction, and at least one of the first pressing body and the second pressing body reduces or expands the gap between the first pressing body and the second pressing body under the drive of the pressing driver. The material receiving and unloading mechanism is placed in the gap between the first upright frame and the second upright frame, and the material receiving and unloading mechanism also corresponds upward to the gap between the first pressing body and the second pressing body. The first pressing body and the second pressing body are driven by the pressing driver to fit the end plate and the annular skirt supported by the material receiving and unloading mechanism together to obtain an assembly. The spot welding mechanism can move relative to the assembly to perform circumferential spot welding between the end plate and the annular skirt in the assembly.

[0007] Compared with the prior art, with the aid of a material receiving and unloading mechanism, for skirt plates of different specifications (referring to ring diameters), the centers of the end plate and the annular skirt belt constituting the skirt plate are kept in a position corresponding to the centers of the first pressing body and the second pressing body. For example, the end plate, the annular skirt belt, the first pressing body and the second pressing body are coaxially arranged, thereby ensuring the reliability of the first pressing body and the second pressing body fitting the end plate and the annular skirt belt together; with the aid of a spot welding mechanism, circumferential spot welding is performed between the end plate and the annular skirt belt in the assembly (i.e., the end plate and the annular skirt belt that are fitted together), so as to achieve the purpose of pre-fixing the end plate and the annular skirt belt that are fitted together, and prepare for subsequent roll welding; therefore, the top pressure between the end plate and the annular skirt belt that are fitted together, as well as the deformation of the annular skirt belt caused by excessive top pressure, can be greatly reduced.

[0008] Preferably, the material receiving and unloading mechanism comprises a fixed frame, a lifting material receiving frame, a telescopic unloading frame, an up and down lifting drive, a unloading drive and an up and down lifting limit device, the lifting material receiving frame is located above the corresponding fixed frame, the up and down lifting drive is assembled on the fixed frame, the output end of the up and down lifting drive is assembled and connected to the lifting material receiving frame, the top surface of the lifting material receiving frame has an end plate inclined relative to the horizontal plane and an inclined guide surface for guiding the movement of an annular skirt, the telescopic unloading frame and the unloading drive are each assembled on the lifting material receiving frame and are located below the inclined guide surface, the telescopic unloading frame can be extended from or retracted to the inclined guide surface under the drive of the unloading drive, the up and down lifting limit device is assembled on the fixed frame and is located below the corresponding lifting material receiving frame, and the lifting material receiving frame is limited at different heights from below by means of the lifting and lowering of the up and down lifting limit device.

[0009] Preferably, the up and down lifting limit device is a worm gear screw lift, the up and down lifting drive is respectively arranged beside the two opposite sides of the up and down lifting limit device, and the output end of the up and down lifting drive is arranged upward.

[0010] Preferably, the lifting material receiving rack is provided with a positioning structure for positioning the end plate and the annular skirt when they move along the inclined guide surface to a preset position, and the telescopic material unloading rack is placed in the positioning structure.

[0011] Preferably, the positioning structure is at least two bearing structures separated from each other in the guiding direction of the inclined guide surface, the bearing structures protrude upward from the inclined guide surface, and the telescopic unloading rack is located between two adjacent bearing structures; the unloading drive is located below the telescopic unloading rack, and the output end of the unloading drive is arranged upward.

[0012] Preferably, the skirt assembly spot welding machine of the present invention also includes a partition plate, a partition driver for driving the partition plate to move up and down, and a feed channel corresponding to the gap between the first upright frame and the second upright frame in the second direction, the upper end of the feed channel is open, the partition plate is correspondingly located above the feed channel and is assembled and connected to the output end of the partition driver, the partition plate can move downward when driven by the partition driver, and the spot welding mechanism is arranged opposite to the feed channel in the second direction.

[0013] Preferably, the skirt assembly spot welding machine of the present invention also includes an anti-slip mechanism for blocking and limiting the end plate and the annular skirt feeding along the feed channel, the anti-slip mechanism includes an anti-slip driver mounted on the first stand and a blocking member mounted on the output end of the anti-slip driver, the blocking member is driven by the anti-slip driver to move into or out of the gap between the first stand and the second stand along the first direction; there are two blocking members and they are arranged one above and one below, and each blocking member corresponds to the anti-slip driver; the spot welding mechanism includes a two-axis transfer module mounted on the first stand and adjacent to the anti-slip mechanism, and a welding gun driven to move by the two-axis transfer module.

[0014] Preferably, the skirt assembly spot welding machine of the present invention also includes a bearing mounted on the second stand, a rotating ring body sleeved on the bearing, a fixed plate fixedly connected to the rotating ring body, and a rotating driver mounted on the second stand and capable of driving the rotating ring body to rotate, wherein the fixed plate is located between the second pressing body and the rotating ring body in the first direction, and the pressing driver is mounted on the fixed plate and arranged on the side of the fixed plate facing away from the second pressing body.

[0015] Preferably, the skirt assembly spot welding machine of the present invention also includes a strip insertion mechanism for correcting the annular skirt between the first pressing body and the second pressing body, the second vertical frame is provided with a mounting frame located at a side of the second vertical frame facing away from the first vertical frame and an intermediate support rod fixing the mounting frame and the fixed plate together; the strip insertion mechanism includes a strip insertion driver, a strip insertion row and a strip insertion mounting plate located between the fixed plate and the mounting frame in the first direction; the strip insertion row includes a plurality of strip insertions arranged in a circle on the strip insertion mounting plate, the second pressing body is provided with a through hole for the strip insertion to pass through, the strip insertion driver is assembled on the mounting frame, the output end of the strip insertion driver is assembled and connected to the strip insertion mounting plate, and the strip insertion driver drives the strip insertion mounting plate together with the strip insertion row to move closer to or away from the first pressing body; the first pressing body and the second pressing body will also sleeve the end plate placed between the first pressing body and the second pressing body with the corrected annular skirt during the process of relative approach.

[0016] Preferably, the insert strip mounting plate is a multi-ring annular structure, each ring of which can slide along the first direction, each ring of the annular structure is provided with an insert strip row, and each ring of the annular structure is assembled and connected to at least one output end of the insert strip driver. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the skirt plate spot welding assembly machine of the present invention.

[0018] Figure 2 yes Figure 1 A three-dimensional view of the skirt panel spot welding assembly machine at another angle is shown.

[0019] Figure 3 yes Figure 2 A plan view of the skirt panel spot welding assembly machine is shown.

[0020] Figure 4 is Figure 3 The state diagram in FIG. 1 shows the state when the partition plate is driven by the partition drive to move downward to the partition position. The state diagram also shows that the end plate and the annular skirt are separated by the partition plate.

[0021] Figure 5 It is a three-dimensional diagram showing a base, a first stand, a partition plate, a partition driver, a first pressing body, a feed channel, an anti-overslip mechanism and a material receiving and unloading mechanism that are assembled together.

[0022] Figure 6 is Figure 5 Based on the state diagram, it shows when the partition plate is driven by the partition driver to move downward to the partition position and the anti-overslip mechanism is in the blocking position.

[0023] Figure 7 It is a plan view showing the material receiving and unloading mechanism supported by the end plate and the annular skirt.

[0024] Figure 8 is Figure 7 The state diagram showing the telescopic unloading rack being driven by the unloading drive to rise upward is shown on the basis.

[0025] Fig. 9 yes Figure 8 On the basis of, it shows the state diagram when the upper and lower lifting limit devices rise upward to the preset limit position.

[0026] Fig.10 It is a three-dimensional diagram showing that the bearing, the rotating ring, the fixed plate, the rotating driver and the inserting strip mechanism are assembled on the second stand.

[0027] Fig.11 It is a three-dimensional diagram showing the assembled strip insertion mechanism, the fixing plate, the top pressing driver, the mounting frame, the middle supporting rod and the second top pressing body.

[0028] Fig.12 yes Fig.11 A stereogram from another angle.

[0029] Fig.13 yes Fig.12 A three-dimensional view after hiding the fixing plate and the second top pressure body.

[0030] Fig.14It is a plan view showing a rotating ring body mounted on a bearing.

[0031] Fig.15 It is a three-dimensional view of the spot welding mechanism in the skirt plate spot welding assembly machine of the present invention. DETAILED DESCRIPTION

[0032] In order to explain the technical content and structural features of the present invention in detail, further description is given below in combination with the implementation modes and the accompanying drawings.

[0033] See also Figure 1 , Figure 2 and Figure 7 The skirt assembly spot welding machine 100 of the present invention comprises a first stand 10a, a second stand 10b, a first pressing body 20, a second pressing body 30, and a pressing driver 40 (see Fig.11 ), spot welding mechanism 50 and material receiving and unloading mechanism 60 for supporting end plate 210 and annular skirt 220 from below. The first stand 10a is arranged in a spaced relationship with the second stand 10b in a first direction (as indicated by double arrow A); Figures 1 to 4 As shown in the figure, as an example, the lower ends of the first stand 10a and the second stand 10b are fixed to the base 10c, so that the first stand 10a and the second stand 10b are supported by an external support (such as the ground) by means of the base 10c; obviously, according to actual needs, in other embodiments, the first stand 10a and the second stand 10b can be directly fixedly connected to the external support, so it is not necessary to use the base 10c as an example. Figures 1 to 4 Limits shown.

[0034] The first pressing body 20 and the second pressing body 30 are both located at the gap 10c between the first frame 10a and the second frame 10b. The first pressing body 20 is mounted on the first frame 10a, and the first frame 10a provides support for the first pressing body 20. Optionally, as an example, the first pressing body 20 can be rotatably mounted on the first frame 10a to meet the need for the first pressing body 20 to rotate relative to the first frame 10a. In addition, the first pressing body 20 is a plate-like structure, but is not limited to this.

[0035] The second pressing body 30 is mounted on the second frame 10b, and the second frame 10b provides support for the second pressing body 30; optionally, as an example, the second pressing body 30 is rotatably mounted on the second frame 10b to meet the need for the second pressing body 30 to rotate relative to the second frame 10b; in addition, the second pressing body 30 is a plate-like structure, but not limited to this; the second pressing body 30 is also arranged in a relative spacing with the first pressing body 20 in the first direction, and the second pressing body 30 is driven by the pressing driver 40 to reduce or expand the gap 23 between the first pressing body 20 and the second pressing body 30; obviously, according to actual needs, the pressing driver 40 can also be designed to drive the first pressing body 20 to slide, or the pressing driver 40 can be designed to drive the first pressing body 20 and the second pressing body 30 to slide respectively, so it is not necessary to Fig.11 Limits shown.

[0036] The material receiving and unloading mechanism 60 is placed at the gap 10c between the first upright frame 10a and the second upright frame 10b. The material receiving and unloading mechanism 60 also corresponds upward to the gap 23 between the first pressing body 20 and the second pressing body 30. Driven by the pressing driver 40, the first pressing body 20 and the second pressing body 30 put the end plate 210 and the annular skirt 220 supported by the material receiving and unloading mechanism 60 together to obtain the assembly 200.

[0037] The spot welding mechanism 50 can move relative to the assembly 200 to perform circumferential spot welding between the end plate 210 and the annular skirt 220 in the assembly 200, so as to achieve the purpose of pre-fixing the end plate 210 and the annular skirt 220 that are put together. Since the spot welding mechanism 50 performs spot welding between the end plate 210 and the annular skirt 220 in the circumferential direction of the assembly 200, the welding points are discontinuous and disconnected; as an example, the spot welding mechanism 50 performs spot welding on three separated welding points in the circumferential direction of the assembly 200, but it is not limited to this. More specifically, as follows:.

[0038] like Figures 1 to 6As shown, as an example, the skirt assembly spot welding machine 100 of the present invention further includes a partition plate 70a, a partition driver 70b for driving the partition plate 70a to rise and fall, a feed channel 80a corresponding to the gap 10c between the first stand 10a and the second stand 10b in the second direction, and an anti-slip mechanism 80b for blocking and limiting the end plate 210 and the annular skirt belt 220 feeding along the feed channel 80a. The upper end of the feed channel 80a is open, the partition plate 70a is correspondingly located above the feed channel 80a and is assembled and connected to the output end 71 of the partition driver 70b, and the partition plate 70a can move downward under the drive of the partition driver 70b, so that during the feeding process of the end plate 210 and the annular skirt belt 220, the partition plate 70a separates the end plate 210 and the annular skirt belt 220, thereby ensuring the reliability of the feeding of the end plate 210 and the annular skirt belt 220. The spot welding mechanism 50 is arranged opposite to the feeding channel 80a in the second direction (as indicated by the double arrow B), so that the spot welding mechanism 50 and the feeding channel 80a are arranged on different sides of the second stand 10b, respectively. Figure 5 and Figure 6 As shown, the feeding of the end plate 210 and the annular skirt 220 does not interfere with the spot welding of the spot welding mechanism 50. The anti-over-slip mechanism 80b includes an anti-over-slip driver 84 mounted on the first stand 10a and a blocking member 85 mounted on the output end 841 of the anti-over-slip driver 84. The blocking member 85 moves into or out of the gap 10c between the first stand 10a and the second stand 10b along the first direction under the drive of the anti-over-slip driver 84. During the feeding of the end plate 210 and the annular skirt 220, the blocking member 85 moved into the gap 10c blocks the end plate 210 and the annular skirt 220, thereby preventing them from slipping excessively and causing the end plate 210 and the annular skirt 220 to be unable to be properly supported by the material receiving and unloading mechanism 60, thereby ensuring the reliability of the material receiving and unloading mechanism 60 in receiving the end plate 210 and the annular skirt 220. Specifically, Figures 3 to 6 As an example, there are two blocking members 85 arranged one above the other, and each blocking member 85 corresponds to an anti-overslip driver 84. This design can accommodate the blocking needs of end plates 210 and annular skirts 220 of different sizes. That is, when the radial dimensions of the end plate 210 and the annular skirt 220 are both large, the upper blocking member 85 is used for blocking; when the radial dimensions of the end plate 210 and the annular skirt 220 are both small, the lower blocking member 85 is used for blocking. In addition, in combination with Figure 5 , Figure 6 and Fig.15 As an example, the spot welding mechanism 50 includes a two-axis transfer module 52 mounted on the first stand 10a and adjacent to the anti-slip mechanism 80b, and a welding gun 51 driven by the two-axis transfer module 52. Optionally, Fig.15As an example, the two-axis transfer module 52 includes a first direction transfer module 521 and a second direction transfer module 522. The first direction transfer module 521 can be composed of a motor, a screw and a nut, and the second direction transfer module 522 is a cylinder or a hydraulic cylinder, but it is not limited to this. Among them, the first direction transfer module 521 can be composed of a motor, a screw and a nut, and the second direction transfer module 522 is a cylinder or a hydraulic cylinder, so that the welding gun 51 can slide in the first direction and the second direction, thereby achieving the purpose of being compatible with end plates 210 and annular skirts 220 of different sizes.

[0039] like Figures 5 to 9 As shown in the figure, as an example, the material receiving and unloading mechanism 60 includes a fixed frame 61, a lifting material receiving frame 62, a telescopic unloading frame 63, an up and down lifting driver 64, an unloading driver 65 and an up and down lifting limit device 66. The lifting material receiving frame 62 is located above the fixed frame 61 to meet the need of lifting the lifting material receiving frame 62 to move up and down above the fixed frame 61; Figure 5 and Figure 6 As an example, when the first stand 10a and the second stand 10b are fixed on the base 10c, the lower end of the fixed frame 61 can be fixed on the base 10c, and the base 10c provides support for the fixed frame 61. The up and down lifting driver 64 is assembled on the fixed frame 61, and the fixed frame 61 provides support for the up and down lifting driver 64; the output end 641 of the up and down lifting driver 64 is assembled and connected with the lifting receiving frame 62 to meet the needs of the up and down lifting driver 64 to drive the lifting receiving frame 62 to rise and fall. The top surface of the lifting receiving frame 62 has an inclined guide surface 621 inclined relative to the horizontal plane for guiding the movement of the end plate 210 and the annular skirt 220. The telescopic unloading frame 63 and the unloading driver 65 are each assembled on the lifting receiving frame 62 and located below the inclined guide surface 621. The telescopic unloading frame 63 can extend or retract from the inclined guide surface 621 under the drive of the unloading driver 65. The upper and lower lifting limit device 66 is assembled on the fixed frame 61 and is located at the corresponding lower part of the lifting receiving frame 62. Therefore, by lifting and lowering the upper and lower lifting limit device 66, the lifting receiving frame 62 is stopped and limited at different heights from the lower part, so as to ensure that the centers of the end plates 210 and the annular skirt 220 of different sizes are always kept in the appropriate positions before the first pressing body 20 and the second pressing body 30 assemble and press the end plates 210 and the annular skirt 220, for example, the end plates 210, the annular skirt 220, the first pressing body 20 and the second pressing body 40 are coaxial. Specifically, Figures 7 to 9In the embodiment, as an example, the upper and lower lifting limit device 66 is a worm gear screw lift to accurately control the limit position of the upper and lower lifting limit device 66 on the lifting material receiving rack 62; the upper and lower lifting drivers 64 are respectively arranged beside the upper and lower lifting limit devices 66 on both sides opposite to each other, and the output end 641 of the upper and lower lifting driver 64 is arranged upward; such a design ensures the smooth and reliable lifting of the lifting material receiving rack 62. In addition, the lifting material receiving rack 62 is provided with a positioning structure 67 for positioning the end plate 210 and the annular skirt belt 220 when they move to a preset position along the inclined guide surface 621, so as to improve the reliability of the positioning of the end plate 210 and the annular skirt belt 220 by the lifting material receiving rack 62; the telescopic unloading rack 63 is placed in the positioning structure 67, so that the telescopic unloading rack 63 can eject the end plate 210 and the annular skirt belt 220 positioned by the positioning structure 67 to meet the need of unloading. More specifically, in Figures 7 to 9 As an example, the positioning structure 67 is two guide directions of the inclined guide surface 621 (see Figure 6 The bearing structures are separated from each other on the upper and lower lifting receiving frame 62 (indicated by the arrow in the middle lifting receiving frame 62), and the bearing structures protrude upward from the inclined guide surface 621, and the telescopic unloading frame 63 is located between two adjacent bearing structures; this design improves the smoothness of the end plate 210 and the annular skirt 220 entering and exiting the positioning structure 67. In addition, the unloading driver 65 is located below the telescopic unloading frame 63, and the output end 651 of the unloading driver 65 is arranged upward to simplify the assembly relationship between the unloading driver 65 and the telescopic unloading frame 63. For example, the upper and lower lifting drivers 64 and the unloading driver 65 can be cylinders or hydraulic cylinders.

[0040] Among them, in the material receiving and unloading mechanism 60, with the help of the up and down lifting drive 64, the lifting material receiving frame 62 can be lifted up to the position corresponding to the feeding channel 80a, so as to ensure the smoothness of the end plate 210 and the annular skirt 220 entering from the feeding channel 80a to the lifting material receiving frame 62; with the help of the up and down lifting limit device 66, the lifting material receiving frame 62 descending downward is resisted and limited, so that the centers of the end plate 210 and the annular skirt 220 supported by the lifting material receiving frame 62 are maintained in a position matching the centers of the first top pressing body 20 and the second top pressing body 30. For example, the end plate 210, the annular skirt 220, the first top pressing body 20 and the second top pressing body 30 are coaxially arranged to accommodate the needs of end plates 210 and annular skirts 220 of different sizes.

[0041] Combination Figure 3 , Figure 4 , Fig.10 , Fig.11 and Fig.14The skirt assembly spot welding machine 100 of the present invention further comprises a bearing 80c mounted on the second stand 10b, a rotating ring body 80d sleeved on the bearing 80c, a fixed plate 80e fixedly connected to the rotating ring body 80d, and a rotating driver 80f mounted on the second stand 10b and capable of driving the rotating ring body 80d to rotate. The fixed plate 80e is located between the second pressing body 30 and the rotating ring body 80d in the first direction, and the state is shown in FIG. Figure 3 and Figure 4 As shown. The top pressure driver 40 is assembled on the fixed plate 80e and arranged on the side of the fixed plate 80e facing away from the second top pressure body 30. Therefore, with the help of the bearing 80c, the smoothness and flexibility of the rotation of the rotating ring 80d together with the fixed plate 80e and the second top pressure body 30 are ensured. Optionally, in combination with Fig.10 and Fig.14 As an example, the outer edge of the rotating ring body 80d is provided with a circle of meshing teeth 81, and the rotating driver 80f is correspondingly equipped with a gear 86 that is in transmission cooperation with the meshing teeth 81. Therefore, through the cooperation of the gear 86 and the meshing teeth 81, the rotating driver 80f drives the rotating ring body 80d together with the fixed plate 80e and the second pressing body 30 to rotate, so as to meet the need for the assembly 200 pressed by the first pressing body 20 and the second pressing body 30 to follow the rotation. For example, the rotating driver 80f is a motor, and the pressing driver 40 can be a cylinder or a hydraulic cylinder.

[0042] Combination Figures 10 to 13 As an example, the skirt assembly spot welding machine 100 of the present invention further includes a strip insertion mechanism 90 for correcting the annular skirt belt 220 between the first pressing body 20 and the second pressing body 30. The second stand 10b is provided with a mounting frame 10e located on the side of the second stand 10b facing away from the first stand 10a and an intermediate support rod 10f fixing the mounting frame 10e and the fixing plate 80e together, so as to meet the need of the strip insertion mechanism 90 rotating with the rotating ring body 80d. Specifically, in combination with Figures 10 to 13 As an example, the strip mechanism 90 includes a strip driver 91, a strip row, and a strip mounting plate 93 located between the fixed plate 80e and the mounting frame 10e in the first direction. The strip row includes a plurality of strips 921 arranged in a circle on the strip mounting plate 93, and the second pressing body 30 is provided with a through hole 31 for the strips 921 to pass through; the strip driver 91 is assembled on the mounting frame 10e, and the output end 911 of the strip driver 91 is assembled and connected to the strip mounting plate 93, and the strip driver 91 drives the strip mounting plate 93 together with the strip row to move closer to or away from the first pressing body 20. In the process of the first pressing body 20 and the second pressing body 30 approaching each other, the end plate 210 placed between the first pressing body 210 and the second pressing body 30 is also sleeved with the corrected annular skirt 220 to improve the reliability of the end plate 210 and the annular skirt 220 being assembled. More specifically, in Fig.13 In the embodiment, as an example, the insert strip mounting plate 93 is a ring structure 931 with four rings and each ring can slide along the first direction, each ring structure 931 is provided with an insert strip row, and each ring structure 931 is assembled and connected with the output ends 911 of two insert strip drivers 91; such a design enables each model of the annular skirt 220 to be corrected by the insert strip row on the corresponding annular structure 931, thus ensuring that the insert strip rows on each ring structure 931 do not interfere with each other. It is worth noting that although Fig.13 Only one of the inserting strips 931 on the corresponding annular structure 931 is shown, but the remaining inserting strips 931 of the annular structure 931 are hidden. In addition, the inserting strip mechanism 90 corrects the annular skirt 220 by inserting it into the annular skirt 220. In addition, the inserting strip driver 91 can be a cylinder or a hydraulic cylinder.

[0043] Compared with the prior art, with the aid of the material receiving and unloading mechanism 60, for skirts of different specifications (referring to the ring diameter), the center of the end plate 210 and the annular skirt belt 220 constituting the skirt plate is kept at a position corresponding to the center of the first pressing body 20 and the second pressing body 30. For example, the end plate 210, the annular skirt belt 220, the first pressing body 20 and the second pressing body 30 are coaxially arranged, thereby ensuring that the first pressing body 20 and the second pressing body 30 fit the end plate 210 and the annular skirt belt 220 together. reliability; with the help of the spot welding mechanism 50, the end plate 210 and the annular skirt 220 in the assembly 200ˋ (that is, the end plate 210 and the annular skirt 220 that are sheathed together) are circumferentially spot welded to achieve the purpose of pre-fixing the sheathed end plate 210 and the annular skirt 220, and prepare for the subsequent roll welding; therefore, the top pressure between the sheathed end plate 210 and the annular skirt 220, as well as the deformation of the annular skirt 220 caused by excessive top pressure, can be greatly reduced.

[0044] In addition, Figure 1 In the figure, the first direction is the front-rear direction of the first stand 10a, the second direction is the left-right direction of the first stand 10a, and the direction indicated by arrow C is the up-down direction of the first stand 10a. In addition, the anti-overslip actuator 84 can be a cylinder or a hydraulic cylinder.

[0045] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A skirt assembly spot welding machine, comprising a first stand, a second stand, a first pressing body, a second pressing body and a pressing driver, wherein the first stand is arranged opposite to and apart from the second stand in a first direction, the first pressing body and the second pressing body are both located in the gap between the first stand and the second stand, the first pressing body is mounted on the first stand, the second pressing body is mounted on the second stand, the second pressing body is also arranged opposite to and apart from the first pressing body in the first direction, at least one of the first pressing body and the second pressing body reduces or expands the gap between the first pressing body and the second pressing body under the drive of the pressing driver, characterized in that: The skirt assembly spot welding machine also includes a spot welding mechanism and a material receiving and unloading mechanism for supporting the end plate and the annular skirt from below, the material receiving and unloading mechanism is placed in the gap between the first upright frame and the second upright frame, the material receiving and unloading mechanism also corresponds upward to the gap between the first pressing body and the second pressing body, the first pressing body and the second pressing body are driven by the pressing driver to fit the end plate and the annular skirt supported by the material receiving and unloading mechanism together to obtain an assembly, the spot welding mechanism can move relative to the assembly to perform circumferential spot welding between the end plate and the annular skirt in the assembly.

2. The skirt assembly spot welding machine according to claim 1, characterized in that: The material receiving and unloading mechanism comprises a fixed frame, a lifting material receiving frame, a telescopic unloading frame, an up and down lifting drive, a unloading drive and an up and down lifting limit device, the lifting material receiving frame is located above the corresponding fixed frame, the up and down lifting drive is assembled on the fixed frame, the output end of the up and down lifting drive is assembled and connected with the lifting material receiving frame, the top surface of the lifting material receiving frame has an end plate inclined relative to the horizontal plane and an inclined guide surface for guiding the movement of an annular skirt belt, the telescopic unloading frame and the unloading drive are respectively assembled on the lifting material receiving frame and are located below the inclined guide surface, the telescopic unloading frame can be extended from or retracted to the inclined guide surface under the drive of the unloading drive, and the up and down lifting limit device is assembled on the fixed frame and is located below the corresponding lifting material receiving frame, and the lifting material receiving frame is limited at different heights from below by means of the lifting and lowering of the up and down lifting limit device.

3. The skirt assembly spot welding machine according to claim 2, characterized in that: The up and down lifting limit device is a worm gear screw lift, and the up and down lifting drivers are respectively arranged beside the two opposite sides of the up and down lifting limit device, and the output end of the up and down lifting driver is arranged upward.

4. The skirt assembly spot welding machine according to claim 2, characterized in that: The lifting material receiving frame is provided with a positioning structure for positioning the end plate and the annular skirt when they move to a preset position along the inclined guide surface, and the telescopic material unloading frame is placed in the positioning structure.

5. The skirt assembly spot welding machine according to claim 4, characterized in that: The positioning structure is at least two bearing structures separated from each other in the guiding direction of the inclined guide surface, the bearing structures protrude upward from the inclined guide surface, and the telescopic unloading rack is located between two adjacent bearing structures; the unloading drive is located below the telescopic unloading rack, and the output end of the unloading drive is arranged upward.

6. The skirt assembly spot welding machine according to claim 1, characterized in that: It also includes a partition plate, a partition driver for driving the partition plate to move up and down, and a feed channel corresponding to the gap between the first stand and the second stand in the second direction, the upper end of the feed channel is open, the partition plate is correspondingly located above the feed channel and is assembled and connected to the output end of the partition driver, the partition plate can move downward when driven by the partition driver, and the spot welding mechanism is arranged opposite to the feed channel in the second direction.

7. The skirt assembly spot welding machine according to claim 6, characterized in that: It also includes an anti-slip mechanism for blocking and limiting the end plate and the annular skirt feeding along the feed channel, the anti-slip mechanism includes an anti-slip driver mounted on the first stand and a blocking member mounted on the output end of the anti-slip driver, the blocking member is driven by the anti-slip driver to move into or out of the gap between the first stand and the second stand along the first direction; there are two blocking members and they are arranged one above and one below, and each blocking member corresponds to the anti-slip driver; the spot welding mechanism includes a two-axis transfer module mounted on the first stand and adjacent to the anti-slip mechanism, and a welding gun driven to move by the two-axis transfer module.

8. The skirt assembly spot welding machine according to claim 1, characterized in that: It also includes a bearing mounted on the second stand, a rotating ring body sleeved on the bearing, a fixed plate fixedly connected to the rotating ring body, and a rotating driver mounted on the second stand and capable of driving the rotating ring body to rotate, wherein the fixed plate is located between the second pressing body and the rotating ring body in the first direction, and the pressing driver is mounted on the fixed plate and arranged on the side of the fixed plate facing away from the second pressing body.

9. The skirt assembly spot welding machine according to claim 8, characterized in that: The cam is configured to have a plurality of camshafts, each of which ...

10. The skirt assembly spot welding machine according to claim 9, characterized in that: The insert strip mounting plate is a multi-ring annular structure, each ring of which can slide along the first direction. Each ring of the annular structure is provided with an insert strip row, and each ring of the annular structure is assembled and connected with at least one output end of the insert strip driver.

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