A pump body press insert spot welding machine

Abstract

The present invention discloses a pump body press-insert spot welding machine, comprising a frame, an upper press-fitting mechanism arranged on the frame, a lower press-fitting mechanism and a spot welding mechanism, wherein the lower press-fitting mechanism is translated by a translation device, so that the lower press-fitting mechanism switches between matching with the upper press-fitting mechanism and matching with the spot welding mechanism. The pump body press-insert spot welding machine of the present invention realizes mechanical automatic assembly of inserts and pump bodies, and can quickly press-fit and spot-weld inserts through an automated mechanism, thereby greatly improving production efficiency and reducing production costs.

Description

Technical Field

[0001] The invention belongs to the technical field of special equipment, and in particular relates to a pump body press-insertion spot welding machine. Background Art

[0002] The insert for the water pump is installed in the inner flow channel of the water pump head when in use. The existing method of assembling the insert and the water pump head is also the method of assembling the insert of the inner flow channel of the water pump head with patent number ZL201510537940.9 previously applied by the applicant: the first step is to put the insert into a mud core mold filled with sand;

[0003] The second step is to place the clay core mold with the insert in the lower mold of the sand casting mold, and then cover the upper mold of the sand casting mold;

[0004] The third step is to pour molten iron into the foundry mold so that the molten iron and the clay core mold merge into one; at the same time, the high temperature of the molten iron makes the back of the insert join with the clay core into one; after cooling, the finished product is formed.

[0005] The fourth step is to place the initially formed product in a sand slinger, remove the mud core inside the pump head that has not been bonded together, and then polish the surface of the pump head to make it smooth, which is the finished product.

[0006] The above processing method, after actual testing, was found to have the following problems: the processing technology is relatively complicated and the manufacturing cost is high. Summary of the invention

[0007] The technical problem to be solved by the present invention is to provide a pump body press-inserted part spot welding machine, which realizes the automation of disassembly machinery, greatly improves the disassembly efficiency, and can realize non-destructive disassembly.

[0008] In order to solve the above technical problems, the technical solution of a pump body press insert spot welding machine of the present invention is:

[0009] The invention discloses a pump body press-fitting spot welding machine, comprising a frame, an upper press-fitting mechanism arranged on the frame, a lower press-fitting mechanism and a spot welding mechanism. The lower press-fitting mechanism is translated by a translation device, so that the lower press-fitting mechanism can be switched between matching with the upper press-fitting mechanism and matching with the spot welding mechanism.

[0010] The upper pressing mechanism includes a lifting cylinder, a balance plate connected to the travel rod of the lifting cylinder, and a pressing column arranged on the balance plate, and an upper pressing head is provided on the pressing column; springs are connected to both ends of the balance plate, and the upper end of the spring is connected to the elastic adjustment device, through which the elastic potential energy of the spring can be adjusted.

[0011] The elasticity adjustment device comprises a base, an adjustment screw threaded in a screw hole of the base, and a hand wheel connected to the adjustment screw. The lower end of the adjustment screw is connected to a spring via a movable joint structure.

[0012] The frame is also provided with a left limit cylinder and a right limit cylinder, and the left limit cylinder and the right limit cylinder are symmetrically distributed on both sides of the lifting cylinder one, and the travel rods of the left limit cylinder and the right limit cylinder are matched with the balance plate downward.

[0013] A plurality of guide posts are arranged between the balance plate and the frame.

[0014] The spot welding mechanism comprises a second lifting cylinder and a spot welding gun arranged on a travel rod of the second lifting cylinder.

[0015] The downward pressing mechanism includes a translation frame, which is divided into an upper layer and a lower layer. The lower layer is provided with a lifting cylinder three, and a downward pressing head is provided on the stroke rod of the lifting cylinder three. A through hole is provided in the center of the upper layer, and the center lines of the through hole, the upper pressing head and the downward pressing head are collinear.

[0016] The translation device includes a translation cylinder, a hinged joint connected to the travel rod of the translation cylinder, and a translation rod connected to the hinged joint. The free end of the translation rod is fixedly connected to the lower layer of the translation frame, and a guide rail is provided between the bottom surface of the translation frame and the frame, so that the translation frame can move relative to the frame.

[0017] The beneficial effects of the present invention are:

[0018] Compared with the prior art, the pump body press insert spot welding machine of the present invention realizes mechanical automated assembly of inserts and pump bodies, and can quickly press and spot weld inserts through automated mechanisms, greatly improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of the insert of the present invention;

[0020] Figure 2 is a three-dimensional view of a pump body of the present invention;

[0021] Figure 3 It is a three-dimensional view of a pump body press-insertion spot welding machine of the present invention from one angle;

[0022] Figure 4 It is a three-dimensional diagram of the pump body press-insertion spot welding machine of the present invention from another angle;

[0023] Figure 5 It is a three-dimensional view of the pump body press-insertion spot welding machine of the present invention from another angle;

[0024] Figure 6It is a three-dimensional diagram of the lower pressing mechanism of the pump body press-insertion spot welding machine of the present invention;

[0025] Figure 7 It is a structural cross-sectional view of the pump body press-insert spot welding machine of the present invention;

[0026] Figure 8 It is a three-dimensional diagram of the upper pressing mechanism of the pump body press-insertion spot welding machine of the present invention. DETAILED DESCRIPTION

[0027] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0028] See also Figures 1 to 8 The present invention provides a pump body press-fitting spot welding machine, comprising a frame 1, an upper press-fitting mechanism 2, a lower press-fitting mechanism 3 and a spot welding mechanism 4 arranged on the frame 1, wherein the lower press-fitting mechanism 3 is translated by a translation device 5, so that the lower press-fitting mechanism 3 can switch between matching with the upper press-fitting mechanism 2 and matching with the spot welding mechanism 4.

[0029] The upper pressing mechanism 2 includes a lifting cylinder 6, a balance plate 7 connected to the travel rod of the lifting cylinder 6, and a pressing column 8 arranged on the balance plate 7. The pressing column 8 is provided with an upper pressing head (not shown in the figure). The size and structure of the upper pressing head (not shown in the figure) are different depending on the specifications of the pump body; springs 9 are connected to both ends of the balance plate 7, and the upper end of the spring 9 is connected to the elasticity adjusting device 10. The elastic potential energy of the spring 9 can be adjusted through the elasticity adjusting device 10.

[0030] The elastic adjustment device 10 includes a base 11, an adjustment screw 12 screwed into a screw hole of the base 11, and a hand wheel 13 connected to the adjustment screw 12. The lower end of the adjustment screw 12 is connected to the spring 9 through a movable structure. The movable structure is a short shaft 14 fixedly connected to the spring 9. The short shaft 14 and the lower end of the adjustment screw 12 are colinearly inserted. In this way, when the adjustment screw 12 rotates, it only rotates around the axis relative to the short shaft 14, and does not synchronously drive the spring 9 to rotate. When the tightness of the spring 9 needs to be adjusted, it only needs to rotate the hand wheel 13, and then rotate the adjustment screw 12. Since the adjustment screw 12 is screwed into the screw hole of the base 11, the adjustment screw 12 can move up and down along the axis relative to the base 11. In this way, the spring 9 can be driven to stretch or compress, thereby adjusting the elastic tension of the spring 9 on the balance plate 7, adjusting the anti-seismic ability of the balance plate 7, and improving the stability of the balance plate 7 during the upward and downward movement.

[0031] The frame 1 is also provided with a left limit cylinder 15 and a right limit cylinder 16, and the left limit cylinder 15 and the right limit cylinder 16 are symmetrically distributed on both sides of the lifting cylinder 6, and the travel rods of the left limit cylinder 15 and the right limit cylinder 16 are matched with the balance plate 7 downward.

[0032] A plurality of guide posts 17 are provided between the balance board 7 and the frame 1 .

[0033] The spot welding mechanism 4 includes a lifting cylinder 18 and a spot welding gun 19 arranged on a travel rod of the lifting cylinder 18 .

[0034] The lower pressing mechanism 3 includes a translation frame 20, and the translation frame 20 is divided into an upper layer 21 and a lower layer 22. The lower layer 22 is provided with a lifting cylinder 3 23, and a lower pressing head 24 is provided on the stroke rod of the lifting cylinder 3 23. A through hole 25 is provided in the center of the upper layer 21. The center lines of the through hole 25, the upper pressing head (not shown in the figure), and the lower pressing head 24 are collinear, and the aperture of the through hole matches the outer diameter of the pressing column 8.

[0035] The translation device 5 includes a translation cylinder 26, a hinged joint 27 connected to the travel rod of the translation cylinder 26, and a translation rod 28 connected to the hinged joint 27. The free end of the translation rod 28 is fixedly connected to the lower layer 22 of the translation frame 20, and a guide rail 29 is provided between the bottom surface of the translation frame 20 and the frame 1, so that the translation frame 20 can be moved relative to the frame 1.

[0036] The working principle of the pump body press insert spot welding machine of the present invention is explained below:

[0037] The pump body press-inserted spot welding machine of the present invention, when working, first puts the insert into the pump body, then the lifting cylinder 6 of the upper press-installing mechanism 2 drives the balance plate 7 to move downward, and makes the upper press-installing head (not shown in the figure) on the balance plate 7 move downward along the through hole 25 in the upper layer 21 of the translation frame 20, so that the upper press-installing head (not shown in the figure) passes through the through hole 25 and extends downward a certain distance starting from the upper layer 21. This distance is determined according to the size specifications of the pump body. When the upper press-installing head (not shown in the figure) moves downward, After it is in place, the pump body with the insert is manually put on the upper pressing head (not shown in the figure), and then the lifting cylinder 3 23 of the lower pressing mechanism 3 drives the lower pressing head 24 to move upward, and makes the lower pressing head 24 press the pump body upward. The upward force makes the pump body press the upper pressing head (not shown in the figure) upward. Since the upper pressing head (not shown in the figure) is aligned with the insert, the upper pressing head (not shown in the figure) presses the insert downward, so that the insert is successfully embedded in the installation groove of the pump body. At this time, the pump body is actually clamped in the lower The press head 24 is moved between the upper layer 21 of the translation frame 20, and then the lifting cylinder 16 of the upper press mechanism 2 drives the upper press head (not shown) to move up and reset. Then, the translation cylinder 26 of the translation device 5 drives the translation frame 20 to move toward the bottom of the spot welding mechanism 4. After it moves into place, the translation frame 20 stops moving. Then the lifting cylinder 18 of the spot welding mechanism 4 drives the spot welding gun 19 to move down and accurately reach the position of the insert to spot weld the position between the insert and the pump body. When the spot welding is completed, the lifting cylinder 26 is moved to the lower part of the spot welding mechanism 4. The second 18 drives the spot welding gun 19 to move up and reset, and the translation cylinder 26 drives the translation frame 20 to move toward the bottom of the upper pressing mechanism 2. After moving into place, the translation frame 20 stops moving. At this time, the lifting cylinder 1 6 of the upper pressing mechanism 2 drives the upper pressing head (not shown in the figure) to move down again, and presses the extruded insert downward. After completion, the lifting cylinder 1 6 drives the upper pressing head (not shown in the figure) to reset, and the lifting cylinder 3 23 drives the lower pressing head 24 to move down and reset, and the pump body with the pressed and spot welded insert is taken out to complete the work.

[0038] When the pump body press-insert spot welding machine of the present invention is working, after the upper pressing head (not shown in the figure) moves down to its position, the distance between it and the upper layer 21 is a value, and this value is related to the specification of the pump body. This value is different for different pump bodies. In order to make this value adjustable to meet the needs of pump bodies of different specifications, the present invention is provided with a left limit cylinder 15 and a right limit cylinder 16, and the travel rods of the left limit cylinder 15 and the right limit cylinder 16 are matched downwardly with the balance plate 7, and the distance between the travel rod and the balance plate 7 is the distance between the upper pressing head (not shown in the figure) and the upper layer 21 after it moves down to its position.

[0039] The pump body press insert spot welding machine provided in the embodiment of the present invention is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation mode of the present invention. The description of the above embodiments is only used to help understand the technical solution disclosed by the present invention; at the same time, for general technical personnel in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and application scope. In summary, the content of this specification should not be understood as a limitation of the present invention.

Claims

1. A method for using a pump body press-fit spot welding machine, the pump body press-fit spot welding machine comprising a frame, an upper press-fit mechanism, a lower press-fit mechanism and a spot welding mechanism arranged on the frame, wherein the lower press-fit mechanism is translated by a translation device, so that the lower press-fit mechanism switches between matching with the upper press-fit mechanism and matching with the spot welding mechanism; the characteristics are: The upper pressing mechanism comprises a lifting cylinder 1, a balance plate connected to the travel rod of the lifting cylinder 1, and a pressing column arranged on the balance plate, and an upper pressing head is arranged on the pressing column; springs are connected to both ends of the balance plate, and the upper end of the spring is connected to the elastic adjustment device, and the elastic potential energy of the spring is adjusted by the elastic adjustment device; the elastic adjustment device comprises a base, an adjusting screw screwed in a screw hole of the base, and a hand wheel connected to the adjusting screw, and the lower end of the adjusting screw is connected to the spring through a movable structure; a left limit cylinder and a right limit cylinder are also arranged on the frame, and the left limit cylinder and the right limit cylinder are symmetrically distributed on both sides of the lifting cylinder 1, and the travel rods of the left limit cylinder and the right limit cylinder are downward A matching balance plate; a plurality of guide columns are arranged between the balance plate and the frame; the spot welding mechanism comprises a lifting cylinder 2 and a spot welding gun arranged on the stroke rod of the lifting cylinder 2; the lower pressing mechanism comprises a translation frame, the translation frame is divided into an upper layer and a lower layer, the lower layer is provided with a lifting cylinder 3, the stroke rod of the lifting cylinder 3 is provided with a lower pressing head, a through hole is arranged at the center of the upper layer, and the center lines of the through hole, the upper pressing head and the lower pressing head are collinear; the translation device comprises a translation cylinder, a hinged joint connected to the stroke rod of the translation cylinder and a translation rod connected to the hinged joint, the free end of the translation rod is fixedly connected to the lower layer of the translation frame, and a guide rail is arranged between the bottom surface of the translation frame and the frame, so that the translation frame can be moved relative to the frame; During operation, the insert is first placed in the pump body, and then the lifting cylinder 1 of the upper pressing mechanism drives the balance plate to move downward, and makes the upper pressing head on the balance plate move downward along the through hole in the upper layer of the translation frame, so that the upper pressing head passes through the through hole and extends downward a certain distance starting from the upper layer. This distance is determined according to the size specifications of the pump body. After the upper pressing head moves down into place, the pump body with the insert is manually put on the upper pressing head. Subsequently, the lifting cylinder 3 of the lower pressing mechanism drives the lower pressing head to move up, and makes the lower pressing head press the pump body upward. The upward force makes the pump body squeeze the upper pressing head upward. Since the upper pressing head is aligned with the insert, the upper pressing head squeezes the insert downward, so that the insert is successfully embedded in the mounting groove of the pump body. At this time, the pump body is clamped between the lower pressing head and the upper layer of the translation frame. , Then, the lifting cylinder 1 of the upper pressing mechanism drives the upper pressing head to move up and reset, then, the translation cylinder of the translation device drives the translation frame to move toward the bottom of the spot welding mechanism. After it moves into place, the translation frame stops moving, and then the lifting cylinder 2 of the spot welding mechanism drives the spot welding gun to move downward and accurately reach the position of the insert, and spot welds the position between the insert and the pump body. When the spot welding is completed, the lifting cylinder 2 drives the spot welding gun to move up and reset, and the translation cylinder drives the translation frame to move toward the bottom of the upper pressing mechanism. After it moves into place, the translation frame stops moving, and the lifting cylinder 1 of the upper pressing mechanism drives the upper pressing head to move downward again, and presses and extrudes the insert downward. After completion, the lifting cylinder 1 drives the upper pressing head to reset, and the lifting cylinder 3 drives the lower pressing head to move downward and reset, and the pump body with the press-fitted spot-welded insert is taken out to complete the work.

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