Auxiliary positioning device for end cover welding

Abstract

The utility model discloses an auxiliary positioning device for end cover welding. A machine shell positioning rod is arranged at the upper end of a supporting base of the auxiliary positioning device. A core part mounting hole is formed in the core part of the casing positioning rod, a positioning core rod for positioning a middle through hole of the end cover is arranged in the core part mounting hole, and the upper end part of the positioning core rod protrudes out of the upper end surface of the casing positioning rod; the supporting base is fixedly provided with a fixing ring which is arranged on the periphery of the machine shell positioning rod in a sleeving mode and is in a circular ring shape, and angle scales are arranged on the upper surface of the fixing ring. The periphery of the fixing ring is sleeved with a circular-ring-shaped rotating ring, and the rotating ring is provided with a side hole positioning piece used for positioning a screw mounting hole of the end cover. The rotating ring is provided with a fastening screw in a screwed mode, and when the rotating ring needs to be kept at the needed position, the fastening screw is in a screwed state and abuts against the fixing ring. By means of the structural design, the end cover welding device has the advantages of being novel in structural design and good in adjustability, and can be suitable for welding operation of end covers at different angles.

Description

Technical Field

[0001] The utility model relates to the technical field of motor welding processing devices, in particular to an auxiliary positioning device for end cover welding. Background Art

[0002] For a stepping motor product with an end cover, the end cover is fixedly connected to the end face of the housing by welding; among them, a middle through hole for the output shaft of the stepping motor to pass through is provided in the middle position of the end cover, and a screw mounting hole for mounting fastening screws during installation is provided beside the middle through hole.

[0003] The Chinese invention patent application with the patent application number: 201910685020.X and the patent name: An automatic positioning and safe welding device for a motor housing actually discloses an auxiliary positioning device for motor welding processing; specifically, the automatic positioning and safe welding device for the motor housing includes a support frame, a placement platform is fixedly installed on the base of the support frame, and a die post matching with the motor housing is installed on the placement platform; a lifting suction cup for adsorbing the motor bottom plate is installed above the die post, and the lifting suction cup is driven by an electric telescopic cylinder. During operation, the motor housing (housing) is placed and positioned through the die post, and the lifting suction cup adsorbs and grabs the motor bottom plate and fits with the housing under the driving action of the electric telescopic rod.

[0004] It should be noted that for the above-mentioned automatic positioning and safe welding device for the motor housing, it has the following defects, specifically: to adapt to different installation conditions, the angles of the end cover and the housing are required to be different, that is, the end cover needs to be welded to different angles according to product requirements; for the above-mentioned automatic positioning and safe welding device for the motor housing, it does not have the function of adjusting the welding angle, that is, it cannot adjust the welding angle according to product requirements. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an auxiliary positioning device for end cover welding in view of the deficiencies of the prior art. The auxiliary positioning device for end cover welding has a novel structural design, good adjustability, and can be applicable to end cover welding operations at different angles.

[0006] To achieve the above purpose, the utility model is realized through the following technical solutions.

[0007] An auxiliary positioning device for end cover welding includes a support base, and a housing positioning rod protruding upward is provided at the upper end of the support base;

[0008] A core mounting hole with an upward opening is provided in the core of the housing positioning rod, and a positioning core rod for positioning the middle through hole of the end cover is installed in the core mounting hole of the housing positioning rod, and the upper end of the positioning core rod protrudes from the upper end face of the housing positioning rod;

[0009] The support base is fixedly installed with a fixing ring that is sleeved around the positioning rod of the machine shell and has a circular shape. The upper surface of the fixing ring is provided with angular scales; a rotating ring with a circular shape is sleeved around the outer periphery of the fixing ring, and the rotating ring is equipped with a side hole positioning member for positioning the screw mounting holes of the end cover.

[0010] The rotating ring is screwed with fastening screws. When it is necessary to keep the rotating ring in the required position, the fastening screws are in a tightened state, and the fastening screws abut against the fixing ring.

[0011] Among them, the side hole positioning member includes a radially adjustable slider. A radially penetrating positioning chute is opened on the upper surface of the rotating ring corresponding to the radially adjustable slider, and the radially adjustable slider extends into the positioning chute of the rotating ring.

[0012] The bottom surface of the positioning chute is provided with an internal threaded hole, and the radially adjustable slider is provided with a vertically penetrating oblong hole; the radially adjustable slider is equipped with an adjusting screw, and the adjusting screw passes through the oblong hole of the radially adjustable slider and is screwed into the internal threaded hole of the rotating ring.

[0013] The inner end of the radially adjustable slider is equipped with a side hole positioning rod arranged vertically.

[0014] Among them, a machine shell anti-rotation block is installed on the side wall of the machine shell positioning rod, and the machine shell anti-rotation block is limited and installed between the fixing ring and the machine shell positioning rod.

[0015] Among them, an internal threaded hole with a radially outward opening is opened on the inner wall of the core mounting hole. A headless screw is screwed into the internal threaded hole on the inner wall of the core mounting hole, and the positioning core rod is clamped and fixed in the core mounting hole through the headless screw.

[0016] Among them, the machine shell positioning rod and the support base are of an integral structure.

[0017] Compared with the prior art, the present invention has the following beneficial effects. Specifically, in the process of realizing the pre-positioning of the machine shell and the end cover by using the end cover welding auxiliary positioning device of the present invention, the end cover welding auxiliary positioning device can perform adaptive position adjustment according to the required angle of the end cover, that is, it can be applicable to the end cover welding operations at different angles. Therefore, the end cover welding auxiliary positioning device of the present invention has the advantages of novel structural design and good adjustability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with the aid of the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention.

[0019] Figure 1 is a schematic structural diagram of the present invention.

[0020] Figure 2 is an exploded schematic diagram of the present invention.

[0021] Figure 3 This is a schematic cross-sectional view of the present utility model.

[0022] Figure 4 This is a schematic cross-sectional view of another position of the present utility model.

[0023] In Figures 1 to 4 it includes:

[0024] 1 - Support base; 2 - Housing positioning rod; 21 - Core mounting hole; 3 - Positioning mandrel; 4 - Fixed ring; 41 - Angle scale; 5 - Rotating ring; 51 - Positioning chute; 6 - Side hole positioning member; 61 - Radial adjustment slider; 611 - Elongated circular hole; 62 - Adjusting screw; 63 - Side hole positioning rod; 7 - Fastening screw; 8 - Housing anti-rotation block; 9 - Headless screw; 10 - Housing; 101 - Notch; 11 - End cover; 111 - Intermediate through hole; 112 - Screw mounting hole. Specific embodiments

[0025] The following will describe the present utility model in conjunction with specific embodiments.

[0026] Embodiment 1, as Figures 1 to 4 shown, an end cover welding auxiliary positioning device includes a support base 1, and an upwardly protruding housing positioning rod 2 is provided at the upper end of the support base 1.

[0027] Among them, as Figures 2 to 4 shown, a core mounting hole 21 with an upward opening is formed in the core of the housing positioning rod 2, and a positioning mandrel 3 for positioning the intermediate through hole 111 of the end cover 11 is installed in the core mounting hole 21 of the housing positioning rod 2, and the upper end of the positioning mandrel 3 protrudes above the upper end surface of the housing positioning rod 2.

[0028] Furthermore, as Figures 1 to 4 shown, a fixed ring 4 in the shape of a ring is fixedly installed on the support base 1 and sleeved around the housing positioning rod 2, and an angle scale 41 is provided on the upper surface of the fixed ring 4; a rotating ring 5 in the shape of a ring is sleeved around the outer periphery of the fixed ring 4, and a side hole positioning member 6 for positioning the screw mounting hole 112 of the end cover 11 is installed on the rotating ring 5.

[0029] Even further, as Figure 2 and Figure 4 shown, the rotating ring 5 is screwed with a fastening screw 7. When it is necessary to keep the rotating ring 5 in the required position, the fastening screw 7 is in a tightened state, and the fastening screw 7 abuts against the fixed ring 4.

[0030] During the process of positioning the casing 10 and the end cover 11 before welding by using the end cover welding auxiliary positioning device of the first embodiment, the staff first sleeved and positioned the casing 10 at the upper end of the casing positioning rod 2. The upper end of the casing positioning rod 2 is designed with a profiling shape and the casing positioning rod 2 can accurately position the casing 10. After the casing 10 is placed and positioned, the end cover 11 is placed above the casing 10. During this process, the middle through hole 111 of the end cover 11 is aligned and sleeved onto the upper end of the positioning mandrel 3, and the side hole positioning member 6 is used to position the screw mounting hole 112 of the end cover 11, so as to realize the positioning and placement of the end cover 11 above the casing 10. After the end cover 11 is positioned and placed, the rotating ring 5 is rotated according to the required angle requirement, and the staff can accurately determine the required angle position through the angle scale 41 on the upper surface of the fixing ring 4, so that the end cover 11 rotates relative to the casing 10 to the required angle. After the end cover 11 rotates to the position, the fastening screw 7 is tightened to fasten the rotating ring 5 at the required position. At this time, welding can be carried out according to the required angle of the end cover 11.

[0031] It should be emphasized that for the end cover welding auxiliary positioning device of the first embodiment, during the process of realizing the pre-welding positioning of the casing 10 and the end cover 11, the end cover welding auxiliary positioning device can also perform adaptive position adjustment according to the required angle of the end cover 11, that is, it can be applicable to the welding operations of end covers 11 at different angles. Therefore, the end cover welding auxiliary positioning device of the first embodiment has the advantages of novel structural design and good adjustability.

[0032] Embodiment 2, as Figures 1 to 3 shown, the difference between the second embodiment and the first embodiment is that: the side hole positioning member 6 includes a radial adjustment slider 61, and a radially penetrating positioning chute 51 is provided on the upper surface of the rotating ring 5 corresponding to the radial adjustment slider 61, and the radial adjustment slider 61 extends into the positioning chute 51 of the rotating ring 5.

[0033] Among them, an internal threaded hole is provided on the bottom surface of the positioning chute 51, and a vertically penetrating long circular hole 611 is provided on the radial adjustment slider 61; an adjustment screw 62 is equipped on the radial adjustment slider 61, and the adjustment screw 62 passes through the long circular hole 611 of the radial adjustment slider 61 and is screwed into the internal threaded hole of the rotating ring 5.

[0034] In addition, a vertically arranged side hole positioning rod 63 is installed at the inner end of the radial adjustment slider 61.

[0035] For the side hole positioning member 6 of the second embodiment, it can adaptively adjust the position of the side hole positioning plate according to the size of the end cover 11 and the position of the screw mounting hole 112. When adjusting, first loosen the adjusting screw 62, and then move the position of the radial adjusting slider 61 along the positioning chute 51 of the rotating ring 5 so that the position of the side hole positioning rod 63 adapts to the position of the screw mounting hole 112 of the end cover 11. Finally, tighten the adjusting screw 62 and fix the radial adjusting slider 61 at the required position.

[0036] When positioning the end cover 11, the upper end of the side hole positioning rod 63 is inserted into the screw mounting hole 112 of the end cover 11.

[0037] For the side hole positioning member 6 of the second embodiment, it can adapt to end covers 11 of different size specifications, that is, it has the advantage of strong adaptability.

[0038] Embodiment Three, as Figure 1 、 Figure 2 and Figure 4 shown, the difference between the third embodiment and the first embodiment is that: a housing anti-rotation block 8 is installed on the side wall of the housing positioning rod 2, and the housing anti-rotation block 8 is limited and installed between the fixed ring 4 and the housing positioning rod 2.

[0039] When positioning and placing the housing 10 at the upper end of the housing positioning rod 2, the notch 101 on the side of the housing 10 is centered with the housing anti-rotation block 8, and the housing anti-rotation block 8 extends into the notch 101 of the housing 10. For the housing anti-rotation block 8 of the third embodiment, on the one hand, it can ensure that the housing 10 is accurately positioned and placed at the upper end of the housing positioning rod 2, and on the other hand, it can prevent the housing 10 from rotating and shifting when adjusting the angle of the end cover 11.

[0040] Embodiment Four, as Figure 3 shown, the difference between the fourth embodiment and the first embodiment is that the positioning mandrel 3 of the fourth embodiment can be fixedly installed in the core mounting hole 21 in the following way. Specifically: an internally threaded hole opening radially outward is provided on the inner wall of the core mounting hole 21, and a socket headless screw 9 is screwed in the internally threaded hole on the inner wall of the core mounting hole 21. The positioning mandrel 3 is clamped and fixed in the core mounting hole 21 by the socket headless screw 9.

[0041] Embodiment Five, as Figures 1 to 4 shown, the difference between the fifth embodiment and the first embodiment is that: the housing positioning rod 2 and the support base 1 are of an integral structure.

[0042] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An auxiliary positioning device for end cover welding, comprising a support base (1), and an outer casing positioning rod (2) protruding upwardly and extending is provided at the upper end of the support base (1); It is characterized in that: A core mounting hole (21) with an upward opening is formed in the core of the outer casing positioning rod (2). A positioning mandrel (3) for positioning the middle through hole (111) of the end cover (11) is installed in the core mounting hole (21) of the outer casing positioning rod (2). The upper end of the positioning mandrel (3) protrudes from the upper end surface of the outer casing positioning rod (2); The support base (1) is fixedly installed with a fixing ring (4) in a ring shape and sleeved around the outer casing positioning rod (2). An angle scale (41) is provided on the upper surface of the fixing ring (4); A rotating ring (5) in a ring shape is sleeved around the outer periphery of the fixing ring (4). The rotating ring (5) is equipped with a side hole positioning member (6) for positioning the screw mounting hole (112) of the end cover (11); The rotating ring (5) is screwed with a fastening screw (7). When it is necessary to keep the rotating ring (5) in the required position, the fastening screw (7) is in a tightened state, and the fastening screw (7) abuts against the fixing ring (4).

2. The end cover welding auxiliary positioning device according to claim 1, characterized in that: The side hole positioning member (6) includes a radially adjustable slider (61). A radially penetrating positioning chute (51) is formed in the upper surface of the rotating ring (5) corresponding to the radially adjustable slider (61). The radially adjustable slider (61) extends into the positioning chute (51) of the rotating ring (5); An internal threaded hole is formed in the bottom surface of the positioning chute (51). A long circular hole (611) penetrating vertically is formed in the radially adjustable slider (61); The radially adjustable slider (61) is equipped with an adjusting screw (62). The adjusting screw (62) passes through the long circular hole (611) of the radially adjustable slider (61) and is screwed into the internal threaded hole of the rotating ring (5); A side hole positioning rod (63) arranged vertically is installed at the inner end of the radially adjustable slider (61).

3. The end - cover welding auxiliary positioning device according to claim 1, characterized in that: A casing anti-rotation block (8) is installed on the side wall of the outer casing positioning rod (2). The casing anti-rotation block (8) is limited and installed between the fixing ring (4) and the outer casing positioning rod (2).

4. The end cover welding auxiliary positioning device according to claim 1, characterized in that: An internal threaded hole with a radially outward opening is formed in the inner wall of the core mounting hole (21). A socket headless screw (9) is screwed into the internal threaded hole in the inner wall of the core mounting hole (21). The positioning mandrel (3) is clamped and fixed in the core mounting hole (21) by the socket headless screw (9).

5. An end cover welding auxiliary positioning device according to claim 1, characterized in that: The outer casing positioning rod (2) and the support base (1) are of an integral structure.

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