A vacuum pump housing steel bar welding device

Abstract

The present invention relates to the field of vacuum pump devices, and in particular to a vacuum pump housing steel bar welding device, comprising a bottom plate, a vertical plate fixed to one side of the bottom plate, a rotating motor fixed to the vertical plate, a rotating shaft fixed to the output end of the rotating motor, a support plate fixed to the end of the rotating shaft, a slide plate slidably connected to the rotating shaft is also provided on the rotating shaft, a plurality of fixing devices are evenly provided between the slide plate and the support plate, the fixing device comprises a positioning rod hinged to the slide plate, a support rod hinged to the support plate is provided at a position corresponding to the positioning rod on the support plate, the support rod and the positioning rod are connected via a limiting rod, a plurality of supporting cylinders are also fixed to the vertical plate, a fixed cylinder is also fixed to the bottom of the vertical plate, and a fixed block is fixed to the end of the piston rod of the fixed cylinder. The automatic welding of steel bars on the housing is achieved by this device.

Description

[Technical field]

[0001] The invention relates to the field of vacuum pump devices, and in particular to a vacuum pump housing steel bar welding device. [Background technology]

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical or physicochemical methods to evacuate the container to obtain a vacuum. Generally speaking, a vacuum pump is a device that uses various methods to improve, generate and maintain a vacuum in a closed space. According to the working principle of the vacuum pump, the vacuum pump can basically be divided into two types, namely, gas capture pumps and gas transmission pumps. It is widely used in metallurgy, chemical industry, food, electronic coating and other industries.

[0003] When the vacuum pump is in use, the rotor inside the vacuum pump rotates at high speed to generate a large amount of heat. In order to facilitate the heat dissipation of the vacuum pump, heat dissipation steel bars are generally evenly welded on the outer shell of the vacuum pump. However, the existing steel bar welding is done by manual welding, and the welding efficiency is low. In addition, due to manual welding, cold welding is prone to occur, which easily causes the steel bar to fall off when the vacuum pump is in use.

[0004] The present invention is proposed in view of the deficiencies in the prior art. [Summary of the invention]

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a vacuum pump housing steel bar welding device.

[0006] The present invention can be implemented by the following technical solutions:

[0007] The invention discloses a welding device for steel bars of a vacuum pump housing, comprising a bottom plate, a vertical plate fixed on one side of the bottom plate, a rotating motor fixed on the vertical plate, a rotating shaft fixed on the output end of the rotating motor, a supporting plate fixed on the end of the rotating shaft, a sliding plate slidably connected to the rotating shaft is also provided on the rotating shaft, a plurality of fixing devices are evenly provided between the sliding plate and the supporting plate, the fixing device comprises a positioning rod hingedly connected to the sliding plate, a supporting rod hingedly connected to the supporting plate is provided at a position on the supporting plate corresponding to the positioning rod, the supporting rod and the positioning rod are connected via a limiting rod, a plurality of supporting cylinders are also fixed on the vertical plate, a fixing cylinder is also fixed on the bottom of the vertical plate, a fixing block is fixed on the end of the piston rod of the fixing cylinder, and a fixing device is also provided on one side of the bottom plate. A screw rod and multiple sliding rods are arranged, and the screw rod is driven to rotate by a translation motor. A slide table is also arranged above the base plate, and the screw rod passes through the slide table and is threadedly connected to the slide table. A mounting plate is fixed on the slide table, and a welding motor is fixed on the mounting plate. A screw rod is fixed to the output end of the welding motor. A slider is also arranged above the base plate, and a threaded tube is fixed on the slider, and the screw rod is inserted into the threaded tube and is threadedly connected to the threaded tube. Connecting blocks are symmetrically fixed on both sides of the slider, and a welding head is arranged between the two connecting blocks. Connecting shafts are fixed on both sides of the welding head, and the connecting shaft passes through the connecting blocks at corresponding positions and is rotatably connected to the connecting blocks. A torsion spring is also arranged on the connecting shaft, and one end of the torsion spring is fixed to the connecting block, and the other end of the torsion spring is fixed to the connecting shaft.The shell to be welded is placed on the rotating shaft, the supporting cylinder is started, the piston rod of the supporting cylinder is extended, and the end of the piston rod of the supporting cylinder contacts the slide plate and pushes the slide plate to move. Since the slide plate is slidably connected to the rotating shaft, and one end of the limit rod is hinged to the slide plate through the positioning rod, and the other end of the limit rod is hinged to the support plate through the supporting rod, when the slide plate moves toward the supporting plate, each limit rod moves toward the inner wall of the shell, and the limit rods all contact the inner wall of the shell and squeeze the shell. The shell is fixed on the rotating shaft, the fixing cylinder is started, the piston rod of the fixing cylinder is extended, and the fixing block moves. Since the fixing block is provided with a groove, the steel bar to be welded is inserted into the groove position, the steel bar contacts the shell, and the steel bar reaches the welding position on the shell, the translation motor is started, and the translation motor drives the lead screw to rotate. Since the lead screw is threadedly connected to the slide, when the lead screw rotates, the slide moves. After the slide moves to the specified position, the welding motor drives the screw to rotate. Since the screw is threadedly connected with the threaded pipe, when the screw rotates, the threaded pipe moves, the slide moves, and the end of the welding head on the slide reaches the steel bar position. The threaded pipe continues to rotate, and the welding head rotates upward. Since the torsion spring on the connecting shaft is connected to the connecting shaft, the torsion spring is connected to the connecting shaft. The connecting block is fixed, and the end of the welding head reaches the contact position between the steel bar and the shell. The steel bar is welded to the shell through the welding head. During welding, the translation motor drives the slide to move, and the welding head moves with the slide. After the welding head moves from one side of the steel bar to the other side of the steel bar, the steel bar is welded to the shell. After the steel bar is welded, the welding motor drives the screw to rotate in the opposite direction, the welding head is separated from the shell, the fixed cylinder is started, the piston rod of the fixed cylinder is shortened, the fixed block is separated from the welded steel bar, the rotating motor drives the rotating shaft to rotate a certain angle, the fixed cylinder is started again, and again in the groove of the fixed block. Place the steel bars and weld them to the outer shell through the welding head again, and repeat the operation. When all the steel bars are welded, the supporting cylinder is started, the piston rod of the supporting cylinder is shortened, the spring returns to its natural state, the spring pushes the slide plate to move, the limit rods close together, and after the limit rods are separated from the inner wall of the outer shell, the outer shell with the welded steel bars is removed. The device can realize automatic welding of the steel bars on the outer shell, and when the steel bars are welded, the welding head moves from one end of the steel bar to the other end of the steel bar, so as to realize all-round welding of the steel bars, and the welding effect is good, which can effectively prevent the steel bars from being shaken off when the vacuum pump is in use.

[0008] Preferably, one end of the limit rod is rotatably connected to the support rod, and the other end of the limit rod is rotatably connected to the positioning rod.

[0009] Preferably, the piston rod ends of the supporting cylinders are provided with balls rollingly connected to the piston rods, and the balls push the slides to move after contacting the slides, and when the rotating shaft rotates, the friction between the balls and the slides is small.

[0010] Preferably, the sliding rod passes through the sliding table and is slidably connected to the sliding table.

[0011] Preferably, a fixing rod is also fixed on the sliding block, and the fixing rod passes through the mounting plate and is slidably connected to the mounting plate.

[0012] Preferably, a baffle is fixed between the two connecting blocks. By setting the baffle, after the welding head is separated from the shell, due to the action of the torsion spring, the welding head is still tilted upward by the baffle, so that the end of the welding head reaches the contact position between the shell and the steel bar during the next welding.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The device realizes automatic welding of steel bars on the outer shell, and when welding the steel bars, the welding head moves from one end of the steel bar to the other end of the steel bar, so that all-round welding of the steel bar can be realized, the welding effect is good, and the steel bar can be effectively prevented from being shaken off when the vacuum pump is in use.

Brief Description of the Drawings

[0015] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 A top view of the present invention;

[0018] Figure 3 for Figure 2 Sectional view at AA;

[0019] Figure 4 for Figure 2 Sectional view at the middle BB;

[0020] Figure 5 for Figure 3 Enlarged view of point C in the middle;

[0021] In the figure: 1, bottom plate; 2, vertical plate; 3, rotating motor; 4, rotating shaft; 5, supporting plate; 6, sliding plate; 7, supporting rod; 8, positioning rod; 9, limiting rod; 10, spring; 11, supporting cylinder; 12, ball bearing; 13, housing; 14, steel bar; 15, fixed cylinder; 16, fixed block; 17, sliding rod; 18, screw rod; 19, translation motor; 20, slide; 21, mounting plate; 22, welding motor; 23, screw rod; 24, slider; 25, threaded pipe; 26, fixed rod; 27, connecting block; 28, connecting shaft; 29, welding head; 30, torsion spring; 31, baffle; [Specific implementation method]

[0022] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0023] like Figures 1 to 5As shown, the present invention discloses a vacuum pump housing steel bar welding device, comprising a bottom plate 1, a vertical plate 2 is fixed on one side of the bottom plate 1, a rotating motor 3 is fixed on the vertical plate 2, a rotating shaft 4 is fixed on the output end of the rotating motor 3, a supporting plate 5 is fixed on the end of the rotating shaft 4, a slide plate 6 slidably connected to the rotating shaft 4 is also provided on the rotating shaft 4, a plurality of fixing devices are evenly arranged between the slide plate 6 and the supporting plate 5, the fixing device comprises a positioning rod 8 hingedly connected to the slide plate 6, a supporting rod 7 hingedly connected to the supporting plate 5 is provided at a position corresponding to the positioning rod 8 on the supporting plate 5, the supporting rod 7 is connected to the positioning rod 8 by a limiting rod 9, a plurality of supporting cylinders 11 are also fixed on the vertical plate 2, a fixing cylinder 15 is also fixed at the bottom of the vertical plate 2, a fixing block 16 is fixed to the end of the piston rod of the fixing cylinder 15, a screw rod 18 and a plurality of sliding rods 17 are also arranged on one side of the bottom plate 1, The lead screw 18 is driven to rotate by a translation motor 19. A slide 20 is also provided above the base plate 1. The lead screw 18 passes through the slide 20 and is threadedly connected to the slide 20. A mounting plate 21 is fixed on the slide 20. A welding motor 22 is fixed on the mounting plate 21. A screw 23 is fixed to the output end of the welding motor 22. A slider 24 is also provided above the base plate 1. A threaded tube 25 is fixed on the slider 24. The screw 23 is inserted into the threaded tube 25 and is threadedly connected to the threaded tube 25. Connecting blocks 27 are symmetrically fixed on both sides of the slider 24. A welding head 29 is provided between the two connecting blocks 27. Connecting shafts 28 are fixed on both sides of the welding head 29. The connecting shaft 28 passes through the connecting block 27 at the corresponding position and is rotatably connected to the connecting block 27. A torsion spring 30 is also provided on the connecting shaft 28. One end of the torsion spring 30 is fixed to the connecting block 27, and the other end of the torsion spring 30 is fixed to the connecting shaft 28.The shell 13 to be welded is placed on the rotating shaft 4, the supporting cylinder 11 is started, the piston rod of the supporting cylinder 11 is extended, and the end of the piston rod of the supporting cylinder 11 contacts the slide plate 6 and pushes the slide plate 6 to move. Since the slide plate 6 is slidably connected to the rotating shaft 4, and one end of the limiting rod 9 is hinged to the slide plate 6 through the positioning rod 8, and the other end of the limiting rod 9 is hinged to the support plate 5 through the supporting rod 7, when the slide plate 6 moves toward the support plate 5, each limiting rod 9 moves toward the inner wall of the shell 13, and the limiting rods 9 all contact the inner wall of the shell 13 and squeeze the shell 13. The shell 13 is fixed on the rotating shaft 4, the fixing cylinder 15 is started, the piston rod of the fixing cylinder 15 is extended, and the fixing block 16 moves. Since the fixing block 16 is provided with The steel bar 14 to be welded is inserted into the groove position, the steel bar 14 contacts the housing 13, and the steel bar 14 reaches the welding position on the housing 13, the translation motor 19 is started, and the translation motor 19 drives the screw rod 18 to rotate. Since the screw rod 18 is threadedly connected with the slide 20, when the screw rod 18 rotates, the slide 20 moves. After the slide 20 moves to the specified position, the welding motor 22 drives the screw rod 23 to rotate. Since the screw rod 23 is threadedly connected with the threaded tube 25, when the screw rod 23 rotates, the threaded tube 25 moves, and the slide 24 moves. The end of the welding head 29 on the slide 24 reaches the position of the steel bar 14, and the threaded tube 25 continues to rotate, and the welding head 29 rotates upward. Since the torsion spring 30 on the connecting shaft 28 is connected with the connecting block 2 7 is fixed, the end of the welding head 29 reaches the contact position between the steel bar 14 and the shell 13, and the steel bar 14 is welded to the shell 13 through the welding head 29. During welding, the translation motor 19 drives the slide 20 to move, and the welding head 29 moves with the slide 20. After the welding head 29 moves from one side of the steel bar 14 to the other side of the steel bar 14, the steel bar 14 is welded to the shell 13. After the steel bar 14 is welded, the welding motor 22 drives the screw rod 23 to rotate in the opposite direction, and the welding head 29 is separated from the shell 13. The fixed cylinder 15 is started, and the piston rod of the fixed cylinder 15 is shortened, and the fixed block 16 is separated from the welded steel bar 14. The rotating motor 3 drives the rotating shaft 4 to rotate a certain angle, and the fixed cylinder 15 is started again, and the fixed block 16 is again 6, and the steel bar 14 is welded to the shell 13 again through the welding head 29, and the operation is cyclic. When all the steel bars 14 are welded, the supporting cylinder 11 is started, the piston rod of the supporting cylinder 11 is shortened, the spring 10 returns to its natural state, the spring 10 pushes the slide plate 6 to move, the limiting rods 9 are closed together, and after the limiting rods 9 are separated from the inner wall of the shell 13, the shell 13 with the welded steel bar 14 is removed. The automatic welding of the steel bar 14 on the shell 13 is realized by this device, and when the steel bar 14 is welded, the welding head 29 moves from one end of the steel bar 14 to the other end of the steel bar 14, so that all-round welding of the steel bar 14 can be realized, and the welding effect is good, which can effectively prevent the steel bar 14 from being shaken off when the vacuum pump is in use.

[0024] Among them, one end of the limiting rod 9 is rotatably connected to the supporting rod 7 , and the other end of the limiting rod 9 is rotatably connected to the positioning rod 8 .

[0025] Among them, the piston rod ends of the supporting cylinders 11 are all provided with balls 12 that are rollingly connected to the piston rods. The balls 12 push the slide plate 6 to move after contacting the slide plate 6. When the rotating shaft 4 rotates, the friction between the balls 12 and the slide plate 6 is small.

[0026] The sliding rod 17 passes through the sliding platform 20 and is slidably connected to the sliding platform 20 .

[0027] A fixing rod 26 is also fixed on the slider 24 , and the fixing rod 26 passes through the mounting plate 21 and is slidably connected to the mounting plate 21 .

[0028] A baffle 31 is also fixed between the two connecting blocks 27. By setting the baffle 31, after the welding head 29 is separated from the housing 13, due to the action of the torsion spring 30, the welding head 29 is still tilted upward by the baffle 31, so that the end of the welding head 29 reaches the contact position between the housing 13 and the steel bar 14 during the next welding.

[0029] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A vacuum pump housing steel bar welding device, comprising a bottom plate, characterized in that: A vertical plate is fixed to one side of the bottom plate, and a rotating motor is fixed to the vertical plate. A rotating shaft is fixed to the output end of the rotating motor, and a support plate is fixed to the end of the rotating shaft. A slide plate slidably connected to the rotating shaft is also provided on the rotating shaft, and a plurality of fixing devices are evenly arranged between the slide plate and the support plate, and the fixing device includes a positioning rod hingedly connected to the slide plate, and a support rod hingedly connected to the support plate is provided at a position corresponding to the positioning rod on the support plate, and the support rod and the positioning rod are connected by a limiting rod, and a plurality of supporting cylinders are also fixed to the vertical plate, and a fixing cylinder is also fixed to the bottom of the vertical plate, and a fixing block is fixed to the end of the piston rod of the fixing cylinder, and a screw rod and a plurality of sliding rods are also arranged on one side of the bottom plate. The screw rod is driven to rotate by a translation motor, and a slide table is also arranged above the base plate, the screw rod passes through the slide table and is threadedly connected to the slide table, a mounting plate is fixed on the slide table, a welding motor is fixed on the mounting plate, a screw rod is fixed to the output end of the welding motor, a slider is also arranged above the base plate, a threaded tube is fixed on the slider, the screw rod is inserted into the threaded tube and is threadedly connected to the threaded tube, connecting blocks are symmetrically fixed on both sides of the slider, a welding head is arranged between the two connecting blocks, connecting shafts are fixed on both sides of the welding head, the connecting shaft passes through the connecting blocks at corresponding positions and is rotatably connected to the connecting blocks, a torsion spring is also arranged on the connecting shaft, one end of the torsion spring is fixed to the connecting block, and the other end of the torsion spring is fixed to the connecting shaft.

2. The vacuum pump housing steel bar welding device according to claim 1, characterized in that: One end of the limit rod is rotatably connected to the support rod, and the other end of the limit rod is rotatably connected to the positioning rod.

3. The vacuum pump housing steel bar welding device according to claim 1, characterized in that: The end of the piston rod of the supporting cylinder is provided with a ball rollingly connected with the piston rod.

4. The vacuum pump housing steel bar welding device according to claim 1, characterized in that: The slide bar passes through the slide table and is slidably connected with the slide table.

5. The vacuum pump housing steel bar welding device according to claim 1, characterized in that: A fixing rod is also fixed on the sliding block, and the fixing rod passes through the mounting plate and is slidably connected with the mounting plate.

6. The vacuum pump housing steel bar welding device according to claim 1, characterized in that: A baffle is also fixed between the two connecting blocks.

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