A kind of shell welding processing equipment for twin-screw pump production

Abstract

The application provides a shell welding processing equipment for a double screw pump production, and relates to the technical field of welding equipment, which comprises a mounting mechanism, a connecting rack, a moving rod, a sliding rod, a movable block, a screw rod and a welding device. The connecting rack drives the moving rod to move upwards, and after moving upwards to the uppermost end, the sliding rod drives the movable block to extend from the front side of the main body. The screw rod in the connecting rack is rotated to adjust the height of the moving rod, so that the cutting point of the welding device is just at one side of the double screw pump shell. In this way, the positioning of the moving rod can be completed. When the next batch of double screw pump shells are welded, the maximum height of the moving rod driven by the connecting rack to rise is the height of the docking cutting point of the last time. In this way, the cutting point can be quickly found in the future several times of welding, and the structure of the welding device positioning and feeding of the traditional welding processing equipment is not perfect. When the same batch of double screw pump shells are welded each time, the cutting point of the welding needs to be found again, which makes the whole welding process too complicated and prolongs the processing time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a shell welding processing equipment for double screw pump production. BACKGROUND

[0002] In the process of double screw pump production, the semi-finished shell needs to be welded together by welding equipment to form a complete double screw pump shell. However, the positioning and feeding structure of the welding device of the conventional welding processing equipment is imperfect. In each welding of the same batch of double screw pump shells, the welding starting point needs to be found again, which makes the whole welding process too cumbersome and prolongs the processing time. Moreover, the structure for controlling the distance between the welding device and the welding piece of the existing welding processing equipment is imperfect. When the double screw pump shell is not flat, it is difficult to control the distance between the welding device and the welding piece during feeding processing, resulting in poor quality of the double screw pump shell after processing. SUMMARY

[0003] Therefore, the present application provides a shell welding processing equipment for double screw pump production, which has a moving part. By adjusting the height of the moving rod, the welding equipment can be quickly moved to the processing starting point without affecting the semi-finished double screw pump shell, which can effectively reduce the processing time and improve the processing efficiency.

[0004] The present application provides a shell welding processing equipment for double screw pump production, which specifically comprises:

[0005] An installation mechanism is provided with a receiving assembly, and the lifting plate of the receiving assembly is arranged on the front side of the main body in the installation mechanism. The ear plate on the rear side of the lifting plate is slidingly installed on the guide rod in the sliding slot in the installation mechanism. The rack on the lifting plate is engaged with the connecting gear in the installation mechanism. The wedge structure on the positioning rod in the receiving assembly is inserted into the positioning slot in the installation mechanism. A moving part is arranged on the installation mechanism, and the moving rod of the moving part is arranged at the rear end of the main body. The ear plate on the front side of the moving rod is slidingly installed on the guide rod in the sliding slot. The connecting rack of the moving part is in transmission connection with the connecting gear. The moving part comprises a sliding rod and a movable block. The sliding rod is slidingly installed at the upper end of the sliding block in the moving part. The rack is arranged at the bottom inner end of the sliding rod. The rack at the bottom inner end of the sliding rod is engaged with the gear on the rotating member in the moving part. The movable block is slidingly installed on the front side of the sliding rod by the elastic member. Two groups of guide wheels are rotatably installed on the front side and the upper end of the movable block. An electric welding spraying assembly is arranged on the front side and the upper end of the movable block.

[0006] Optionally, the installation mechanism comprises a main body, a rectangular slot is arranged in the middle of the main body, and a circular hole is arranged at each corner of the main body. Positioning slots are arranged at both ends of the front side of the main body.

[0007] Optionally, the installation mechanism further comprises: installation rods, two sets of installation rods are symmetrically arranged on both sides of the main body; and a connecting gear, which is rotatably installed on the installation rods.

[0008] Optionally, the installation mechanism further comprises: sliding grooves, two sets of sliding grooves are symmetrically arranged on both sides of the main body; the sliding grooves are arranged at the inner ends of the main body, extend through the rear ends of the main body, and are provided with two sets of guide rods; and a resilient member is arranged on the front guide rod.

[0009] Optionally, the receiving assembly further comprises: a lifting plate, two sets of ear plates are symmetrically arranged at the rear end of the lifting plate, and two sets of racks are symmetrically arranged on both sides of the lifting plate; and installation grooves, three sets of installation grooves are symmetrically arranged at the inner ends of the lifting plate and extend through the upper and lower ends of the lifting plate.

[0010] Optionally, the receiving assembly further comprises: inner grooves, two sets of inner grooves are symmetrically arranged at the inner ends of the lifting plate and extend through the front and rear ends of the lifting plate; and a positioning rod, which is slidably installed in the inner grooves through a resilient member and extends through the inner grooves, is provided with a wedge structure at the rear side.

[0011] Optionally, the receiving assembly further comprises: a receiving plate, which is rotatably installed in the installation grooves; two sets of pull rods are arranged at the bottom of the receiving plate; and two sets of rectangular grooves are symmetrically arranged at the inner upper end of the receiving plate.

[0012] Optionally, the receiving assembly further comprises: an adjusting member, which is rotatably installed at the bottom of the receiving plate; a conical gear is arranged at the upper end of the adjusting member; a knob is arranged on the receiving plate and extends through the adjusting member; and two sets of control screws are rotatably installed in the two sets of rectangular grooves in the receiving plate, are in threaded connection with the clamping blocks, are provided with conical gears at the ends, and the conical gears on the control screws are in engagement with the conical gear on the adjusting member.

[0013] Optionally, the moving part further comprises: a moving rod, a rectangular through groove is arranged in the moving rod, and a screw rod connected with a connecting motor is rotatably installed in the rectangular through groove; and a connecting rack, which is arranged on both sides of the moving rod, is rotatably installed with a screw rod, and the screw rod is in threaded connection with the moving rod.

[0014] Optionally, the moving part further comprises a sliding block, the sliding block is slidingly installed on the moving rod, and the sliding block is connected with the screw thread in the moving rod, the upper end of the sliding block is provided with a T-shaped slot, and the rear end of the sliding block is rotatably installed with a worm connected with the motor; a rotating piece is rotatably installed on the rear end of the sliding block, and the rotating piece is combined with a group of gears and two groups of worms, the gears are between the two groups of worms, and the worms on the two sides of the rotating piece are in transmission connection with the worm on the rear side of the sliding block.

[0015] Advantages

[0016] Compared with the conventional processing equipment, the welding processing equipment according to the embodiments of the present application is provided with a moving part, so that the welding equipment can be quickly positioned to the cutting point of welding after the semi-finished double-screw pump shell is installed each time, the problem that the cutting point of welding needs to be searched each time when welding is avoided, and the sliding rod is arranged, so that the welding equipment can be attached to the surface of the double-screw pump shell during processing, the welding equipment moves along the outer contour of the double-screw pump during processing, and the problem that the distance between the welding device and the workpiece cannot be mastered is solved.

[0017] In the present application, the receiving assembly and the moving part are arranged, the rectangular sliding grooves are arranged at both ends of the main body, two groups of guide rods are arranged in the sliding grooves, the elastic members are sleeved on the front guide rods, the lifting plates are arranged on the front side of the main body, the ear plates at the rear end of the lifting plates are slidingly installed on the guide rods at the front side in the sliding grooves, four groups of mounting rods are arranged at both ends of the main body, the connecting gears are rotatably installed on the mounting rods, the racks are arranged on both sides of the lifting plates, the racks are in transmission connection with the connecting gears, the inner grooves are arranged in the lifting plates, the positioning rods are slidingly installed in the inner grooves through the elastic members, the positioning rods are inserted into the positioning grooves under the pushing of the elastic members, the moving rods are arranged at the rear end of the main body, the ear plates at the front side of the moving rods are slidingly installed in the guide rods in the sliding grooves, the connecting racks with the screw rods are arranged on both sides of the moving rods, and the moving rods are in screw connection with the screw rods on the connecting racks. When the double-screw pump shell is installed on the lifting plate, the lifting plate is pressed downward to a certain depth, the positioning rods are inserted into the positioning grooves at the corresponding positions of the main body, the lifting plate is fixed on the front side of the main body, the connecting racks on both sides of the lifting plate are engaged with the connecting gears, the connecting racks drive the moving rods to move upward when the lifting plate is lowered, the sliding rods drive the movable blocks to extend out of the front side of the main body after the moving rods move upward to the uppermost end, the screw rods in the connecting racks are rotated, the height of the moving rods is adjusted, the cutting point of the welding equipment is just at one side of the double-screw pump shell, and the positioning of the moving rods is completed.

[0018] The mobile part is arranged in the moving rod, a screw rod connected with the motor is arranged in the moving rod, a sliding block is slidingly arranged on the moving rod and is in threaded connection with the screw rod in the moving rod, a worm connected with the servo motor is arranged at the rear side of the sliding block, a rotating piece is rotatably arranged at the rear end of the sliding block and the worm gears at the two sides of the rotating piece are in transmission connection with the worm connected with the motor, a sliding rod is slidingly arranged on the upper end of the sliding block and the rack at the bottom of the sliding rod is in mesh with the gear on the rotating piece, a movable block is slidingly arranged on the front side of the sliding rod through the elastic piece and two guide wheels are arranged at the bottom of the front side of the movable block, the welding spraying equipment is arranged at the front end of the movable block and the distance between the nozzle and the bottom of the guide wheel is reasonably adjusted, in use, the sliding rod drives the movable block to extend from the front side of the main body by rotating the rotating piece, the height of the moving rod is adjusted by rotating the screw rod in the rack, the guide wheels at the front side of the movable block are attached to the outer shell of the double-screw pump, the sliding rod is moved in the moving rod by the sliding block during the welding process, the guide wheels are moved by attaching to the surface of the outer shell of the double-screw pump, so that the welding equipment is always kept a certain distance from the pump shell during processing. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0020] The drawings described in the following description only relate to some embodiments of the present application, but are not a limitation of the present application.

[0021] In the drawings:

[0022] Figure 1 A perspective structural schematic view according to an embodiment of the present application is shown;

[0023] Figure 2 A rear view structural schematic view according to an embodiment of the present application is shown;

[0024] Figure 3 An exploded structural schematic view according to an embodiment of the present application is shown;

[0025] Figure 4 A partial connection structural schematic view according to an embodiment of the present application is shown;

[0026] Figure 5 A perspective structural schematic view of the mounting mechanism according to an embodiment of the present application is shown;

[0027] Figure 6 An exploded structural schematic view of the receiving assembly according to an embodiment of the present application is shown;

[0028] Figure 7 A partial sectional view structural schematic view of the receiving assembly according to an embodiment of the present application is shown;

[0029] Figure 8A mobile part stereoscopic structure schematic diagram according to an embodiment of the present application is shown.

[0030] Figure 9 A mobile part exploded structure schematic diagram according to an embodiment of the present application is shown.

[0031] Figure 10 A mobile part partial structure schematic diagram according to an embodiment of the present application is shown.

[0032] List of reference signs:

[0033] 1, mounting mechanism;

[0034] 101, main body; 1011, positioning groove;

[0035] 102, mounting rod; 1021, connecting gear;

[0036] 103, sliding groove; 104, support frame;

[0037] 2, receiving assembly;

[0038] 201, lifting plate; 2011, mounting groove;

[0039] 202, inner groove; 2021, positioning rod;

[0040] 203, receiving plate; 2031, clamping block;

[0041] 204, adjusting piece; 205, control screw;

[0042] 3, mobile part;

[0043] 301, mobile rod; 3011, connecting rack;

[0044] 302, sliding block; 3021, rotating piece;

[0045] 303, sliding rod; 3031, movable block. DETAILED DESCRIPTION

[0046] In order to make the purpose, scheme and advantages of the technical solutions of the present application more clear, the technical solutions of the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly used in the art. The same reference signs in the drawings represent the same parts.

[0047] Embodiment: please refer to Figures 1 to 10 :

[0048] The application provides a shell welding processing equipment for a double screw pump production, which comprises a mounting mechanism 1, a receiving assembly 2 arranged on the mounting mechanism 1, a lifting plate 201 of the receiving assembly 2 arranged on the front side of a main body 101 in the mounting mechanism 1, an ear plate on the rear side of the lifting plate 201 slidingly installed on a guide rod in a sliding groove 103 in the mounting mechanism 1, a gear rack on the lifting plate 201 engaged with a connecting gear 1021 in the mounting mechanism 1, a wedge structure on a positioning rod 2021 in the receiving assembly 2 inserted into a positioning groove 1011 in the mounting mechanism 1, a moving part 3 arranged on the mounting mechanism 1, a moving rod 301 of the moving part 3 arranged at the rear end of the main body 101, an ear plate on the front side of the moving rod 301 slidingly installed on the guide rod in the sliding groove 103, a connecting gear rack 3011 of the moving part 3 in transmission connection with the connecting gear 1021, the moving part 3 comprising a sliding rod 303 and a movable block 3031, the sliding rod 303 slidingly installed on the upper end of a sliding block 302 in the moving part 3, a gear rack arranged on the bottom inner end of the sliding rod 303, the gear rack on the bottom inner end of the sliding rod 303 engaged with a gear on a rotating piece 3021 in the moving part 3, the movable block 3031 slidingly installed on the front side of the sliding rod 303 through an elastic piece, two sets of guide wheels rotatably installed on the front side bottom of the movable block 3031, and an electric welding spraying assembly arranged on the front side upper end of the movable block 3031.

[0049] Furthermore, according to the embodiment of the application, as Figure 5As shown, the mounting mechanism 1 comprises: a main body 101, a rectangular slot is formed in the middle of the main body 101, and a circular hole is arranged at the four corners of the main body 101; positioning grooves 1011 are arranged at the two ends of the front side of the main body 101; the rectangular main body 101 can be used to mount the receiving assembly 2 and the moving part 3, the wedge-shaped positioning groove 1011 can be used to insert the wedge-shaped structure at the rear end of the positioning rod 2021 into the positioning groove 1011, so that the positioning rod 2021 can limit the lifting plate 201; the mounting rod 102 is provided in two groups and symmetrically arranged on both sides of the main body 101; the connecting gear 1021 is rotatably mounted on the mounting rod 102; the circular mounting rod 102 is provided to rotatably mount the connecting gear 1021 on the main body 101; the connecting gear 1021 is provided and engaged with the connecting rack 3011 and the rack on both sides of the lifting plate 201, so that when the lifting plate 201 moves, the connecting rack 3011 can be driven to move in the opposite direction by the connecting gear 1021; the slide groove 103 is provided in two groups and arranged at the inner ends of both sides of the main body 101, and the slide groove 103 penetrates the rear ends of both ends of the main body 101 and is provided with two groups of guide rods in the slide groove 103, and the front side guide rod is sleeved with an elastic member; the support frame 104 is inserted into the bottom of the main body 101, and the upper end of the support frame 104 is inserted into the circular hole at the four corners of the main body 101; the rectangular slide groove 103 is provided and connected with the guide rods in the slide groove 103, so that the lifting plate 201 and the moving rod 301 can be slidably mounted on the main body 101 through the slide groove 103; the support frame 104 is provided to support the main body 101.

[0050] In addition, according to the embodiment of the present application, as Figures 6-7As shown, the receiving assembly 2 comprises: a lifting plate 201, two groups of ear plates are symmetrically arranged at the rear end of the lifting plate 201, and a gear rack is symmetrically arranged at the two sides of the lifting plate 201; three groups of mounting grooves 2011 are arranged, the mounting grooves 2011 are arranged at the inner end of the lifting plate 201 in parallel, and the mounting grooves 2011 penetrate through the upper and lower ends of the lifting plate 201; the rectangular lifting plate 201 is arranged, the three groups of receiving plates 203 are driven to move by moving the lifting plate 201, the circular mounting groove 2011 is arranged, the receiving plate 203 is movably mounted on the lifting plate 201 through the mounting groove 2011, two groups of inner grooves 202 are arranged, the inner grooves 202 are arranged at the inner two ends of the lifting plate 201, and the inner grooves 202 penetrate through the front and rear ends of the lifting plate 201, and the inner grooves 202 are arranged between the three groups of mounting grooves 2011; a positioning rod 2021 is slidably arranged in the inner groove 202 through an elastic member, the positioning rod 2021 penetrates through the inner groove 202, and a wedge-shaped structure is arranged at the rear side of the positioning rod 2021; the rectangular inner groove 202 is arranged, the positioning rod 2021 is movably mounted on the lifting plate 201 through the inner groove 202, the rectangular positioning rod 2021 is arranged, the lifting plate 201 is fixed on the main body 101 by inserting the wedge-shaped structure at the rear end of the positioning rod 2021 into the positioning groove 1011, the receiving plate 203 is rotatably arranged in the mounting groove 2011, two groups of pull rods are arranged at the bottom of the receiving plate 203, and two groups of rectangular grooves are symmetrically arranged at the inner upper end of the receiving plate 203; a clamping block 2031 is slidably arranged in the rectangular groove at the inner upper end of the receiving plate 203; the circular receiving plate 203 is arranged, the processed double-screw pump shell can be placed on the receiving plate 203 for storage, the Z-shaped clamping block 2031 is arranged, the two groups of semi-finished double-screw pump shells can be clamped by moving the clamping block 2031, an adjusting piece 204 is rotatably arranged at the bottom of the receiving plate 203, a conical gear is arranged at the upper end of the adjusting piece 204, and a knob is arranged on the adjusting piece 204 and penetrates through the receiving plate 203; two groups of control screws 205 are arranged, the control screws 205 are rotatably arranged in the two groups of rectangular grooves in the receiving plate 203, the control screws 205 are in threaded connection with the clamping block 2031, a conical gear is arranged at the tail end of the control screw 205, the conical gears on the control screw 205 and the adjusting piece 204 are in engagement, the adjusting piece 204 and the control screw 205 are arranged, and the conical gears on the adjusting piece 204 and the control screw 205 are in engagement, so that the two groups of control screws 205 are rotated by rotating the adjusting piece 204, and the clamping block 2031 is controlled to move.

[0051] In addition, according to the embodiment of the present application, as Figures 8-10As shown, the moving part 3 further comprises a moving rod 301, a rectangular through slot is arranged in the moving rod 301, and a group of screw rods connected with the motor are rotatably arranged in the rectangular through slot; the connecting rack 3011 is arranged on both sides of the moving rod 301, and a screw rod is rotatably arranged in the connecting rack 3011 and is in threaded connection with the moving rod 301; the rectangular moving rod 301 is arranged, the moving rod 301 is slidably arranged on the main body 101, so that the moving rod 301 drives the whole moving part 3 to adjust the position, the connecting rack 3011 is arranged, the screw rod in the moving rod 301 is in threaded connection with the screw rod on the connecting rack 3011, so that the moving rod 301 is driven to move when the connecting rack 3011 moves, the sliding block 302 is slidably arranged on the moving rod 301 and is in threaded connection with the screw rod in the moving rod 301, a T-shaped slot is arranged on the upper end of the sliding block 302, and a worm connected with the motor is rotatably arranged at the rear end of the sliding block 302; the rotating part 3021 is rotatably arranged at the rear end of the sliding block 302, and the rotating part 3021 is composed of a group of gears and two groups of worm gears, the gear is arranged between the two groups of worm gears, and the worm gears on both sides of the rotating part 3021 are in transmission connection with the worm at the rear side of the sliding block 302; the sliding block 302 is arranged, the sliding rod 303 is movably arranged on the moving rod 301 through the sliding block 302, the rotating part 3021 is arranged, and the gear at the middle position of the rotating part 3021 is meshed with the rack at the bottom of the sliding rod 303, so that the sliding rod 303 is controlled to move on the sliding block 302 when the rotating part 3021 rotates.

[0052] The specific use mode and role of the embodiment are as follows:

[0053] In the present application, as Figure 10As shown, the rectangular sliding groove 103 with guide rods is opened to both ends of the main body 101, the lifting plate 201 is installed to the front side of the main body 101, and the ear plate at the rear end of the lifting plate 201 is slidingly installed on the guide rods in the sliding groove 103, four sets of connecting gears 1021 are rotatably installed to the main body 101 through the installation rods 102, the racks at both sides of the lifting plate 201 are drivingly connected with the connecting gears 1021, the inner groove 202 is opened in the lifting plate 201, the positioning rod 2021 is installed in the inner groove 202 through the elastic member, the wedge structure at the rear end of the positioning rod 2021 is inserted into the positioning groove 1011, the receiving plate 203 is installed into the installation groove 2011 in the lifting plate 201, the semi-finished double-screw pump shell is placed on the receiving plate 203 and is fixed through the clamping blocks 2031, the moving rod 301 is arranged at the rear end of the main body 101, the moving rod 301 is slidingly installed on the sliding groove 103 at the front side, the connecting racks 3011 with screws are arranged at both sides of the moving rod 301, the moving rod 301 is screwedly connected with the screws on the connecting racks 3011, the double-screw pump shell is pressed downward, the lifting plate 201 is lowered to a certain depth, the positioning rod 2021 is inserted into the positioning groove 1011 at the corresponding position of the main body 101, the lifting plate 201 is fixed at the front side of the main body 101, when the lifting plate 201 is lowered, the connecting racks 3011 drive the moving rod 301 to move upward through the driving effect of the connecting gears 1021, the sliding block 302 is slidingly installed on the moving rod 301, the sliding block 302 is screwedly connected with the screw in the moving rod 301, the worm is arranged at the rear side of the sliding block 302 and connected with the servo motor, the rotating piece 3021 is rotatably installed at the rear end of the sliding block 302, the worm wheels at both sides of the rotating piece 3021 are drivingly connected with the worm connected with the motor, the sliding rod 303 is slidingly installed on the upper end of the sliding block 302, and the rack at the bottom of the sliding rod 303 is engaged with the gear on the rotating piece 3021, the movable block 3031 is slidingly installed at the front side of the sliding rod 303 through the elastic member, and two guide wheels are arranged at the front side and bottom of the movable block 3031, the welding and spraying device is installed at the front end of the movable block 3031, the distance between the nozzle and the bottom of the guide wheel is adjusted, the rotating piece 3021 is rotated to drive the movable block 3031 to extend out of the front side of the main body 101, the screw in the connecting rack 3011 is rotated to adjust the height of the moving rod 301, the bottom of the guide wheel at the front side of the movable block 3031 is attached to the double-screw pump shell, the motor on the moving rod 301 is started, the sliding block 302 drives the welding and spraying device to move on the moving rod 301, and the workpiece is linearly welded.

[0054] Finally, it should be noted that, in the description of the positions of various components and the cooperation relationship therebetween, etc., one component or a pair of components is usually taken as an example, however, those skilled in the art should understand that such positions, cooperation relationship, etc. are also applicable to other components or other pairs of components.

[0055] The above-described exemplary embodiments of the present application are merely given as non-limiting examples, and it should be understood that the present application is not limited to them but covers any modifications of the present application within the scope of the appended claims.

Claims

1. A housing welding processing apparatus for a twin screw pump production, characterized by, Include: The installation mechanism (1) includes a sliding groove (103), and the sliding groove (103) is provided with two groups, and the sliding groove (103) is provided on the inner end of the body (101) on both sides, and the sliding groove (103) penetrates the rear end of the both ends of the body (101), and the sliding groove (103) is provided with two groups of guide rods, and the front side guide rod is sleeved with an elastic element; The installation mechanism (1) is provided with a receiving assembly (2), and the lifting plate (201) of the receiving assembly (2) is arranged on the front side of the body (101), the ear plate on the rear side of the lifting plate (201) is slidably installed on the guide rod in the sliding groove (103), the rack on the lifting plate (201) is engaged with the connecting gear (1021) in the installation mechanism (1), and the wedge structure on the positioning rod (2021) in the receiving assembly (2) is inserted into the positioning groove (1011) in the installation mechanism (1); The moving part (3) is arranged on the installation mechanism (1), the moving part (3) includes a moving rod (301), a connecting rack (3011), a sliding block (302), a rotating part (3021), a sliding rod (303) and a movable block (3031), the moving rod (301) is internally provided with a rectangular through groove, a group of screw rods connected with the motor are rotatably installed in the rectangular through groove, the moving rod (301) is arranged at the rear end of the body (101), and the ear plate on the front side of the moving rod (301) is slidably installed on the guide rod in the sliding groove (103); The connecting rack (3011) is arranged on both sides of the moving rod (301), and the connecting rack (3011) is rotatably installed with a screw rod, the screw rod is threadedly connected with the moving rod (301), and the connecting rack (3011) is in transmission connection with the connecting gear (1021); The sliding block (302) is slidably installed on the moving rod (301), and the sliding block (302) is threadedly connected with the screw rod in the moving rod (301), the sliding block (302) is provided with a T-shaped groove on the upper end, and the sliding block (302) is rotatably installed with a worm connected with the motor on the rear end; The rotating part (3021) is rotatably installed at the rear end of the sliding block (302), and the rotating part (3021) is composed of a group of gears and two groups of worm gears, the gears are between the two groups of worm gears, and the worm gears on both sides of the rotating part (3021) are in transmission connection with the worm on the rear side of the sliding block (302); The sliding rod (303) is slidably installed on the upper end of the sliding block (302), and the sliding rod (303) is provided with a rack on the bottom inner end, and the rack on the bottom inner end of the sliding rod (303) is engaged with the gear on the rotating part (3021), and the movable block (3031) is slidably installed on the front side of the sliding rod (303) through the elastic element, and the movable block (3031) is rotatably installed with two groups of guide wheels on the front side bottom, and the movable block (3031) is provided with an electric welding spray assembly on the front side upper end.

2. The housing welding apparatus for a double screw pump production according to claim 1, wherein: The installation mechanism (1) includes: a body (101), a rectangular slot is formed in the middle of the body (101), and circular holes are arranged at the positions of the four corners of the body (101); The positioning groove (1011) is arranged on both ends of the front side of the body (101).

3. The housing welding apparatus for a double screw pump production according to claim 2, wherein: The mounting mechanism (1) further comprises mounting rods (102), two groups of mounting rods (102) are symmetrically arranged on two sides of the main body (101); and connecting gears (1021) are rotatably arranged on the mounting rods (102).

4. The housing welding apparatus for a double screw pump manufacturing according to claim 2, wherein: The mounting mechanism (1) further comprises a support frame (104), the support frame (104) is inserted into the bottom of the main body (101), and the upper end of the support frame (104) is inserted into the circular hole at the corner position of the main body (101).

5. The housing welding apparatus for a double screw pump production according to claim 1, wherein: The receiving assembly (2) comprises a lifting plate (201), two groups of ear plates are symmetrically arranged at the rear end of the lifting plate (201), and two groups of racks are symmetrically arranged on the two sides of the lifting plate (201); three groups of mounting grooves (2011) are arranged at the inner end of the lifting plate (201), and the mounting grooves (2011) penetrate the upper and lower ends of the lifting plate (201).

6. The housing welding apparatus for a double screw pump production according to claim 5, wherein: The receiving assembly (2) further comprises inner grooves (202), two groups of inner grooves (202) are arranged at the inner sides of the lifting plate (201), the inner grooves (202) penetrate the front and rear ends of the lifting plate (201), and the inner grooves (202) are arranged between the three groups of mounting grooves (2011); positioning rods (2021) are slidably arranged in the inner grooves (202) through elastic members, the positioning rods (2021) penetrate the inner grooves (202), and the rear side of the positioning rods (2021) is provided with a wedge-shaped structure.

7. The housing welding apparatus for a double screw pump manufacturing according to claim 5, wherein: The receiving assembly (2) further comprises a receiving plate (203), the receiving plate (203) is rotatably arranged in the mounting groove (2011), two groups of pull rods are arranged at the bottom of the receiving plate (203), and two groups of rectangular grooves are symmetrically arranged at the inner upper end of the receiving plate (203); and clamping blocks (2031) are slidably arranged in the rectangular grooves at the inner upper end of the receiving plate (203).

8. The housing welding apparatus for a double screw pump production according to claim 7, wherein: The receiving assembly (2) further comprises an adjusting member (204), the adjusting member (204) is rotatably arranged at the bottom of the receiving plate (203), a conical gear is arranged at the upper end of the adjusting member (204), and a knob is arranged in the receiving plate (203) and penetrates the receiving plate (203); two groups of control screws (205) are rotatably arranged in the two groups of rectangular grooves in the receiving plate (203), the control screws (205) are in threaded connection with the clamping blocks (2031), a conical gear is arranged at the tail end of the control screws (205), and the conical gears on the control screws (205) are in engagement with the conical gear on the adjusting member (204).

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