Device for controlling parallelism of workpiece

Abstract

The utility model provides a device for controlling the parallelism of a workpiece, the workpiece comprises a pipe fitting and sealing plates to be welded on the two sides of the pipe fitting, the device comprises a bottom plate, fixing plates, positioning columns, a lower clamping plate and an upper clamping plate, the fixing plates are arranged on the two sides of the bottom plate in parallel, and the positioning columns are arranged on the fixing plates. The positioning column is arranged on the inner side of the fixing plate and used for positioning the position of a sealing plate, the upper clamping plate and the lower clamping plate are detachably connected to the upper position and the lower position of the inner side of the fixing plate respectively, and the lower clamping plate and the upper clamping plate are matched to act on positioning the pipe fitting. The positioning device is simple in structure and convenient to use, the upper clamping plate and the lower clamping plate are detachably connected with the fixing plate, the sealing plates can be clamped and locked, the pipe fitting can be positioned, the parallelism of the sealing plates on the two sides of the pipe fitting is guaranteed, the welding precision is improved, the manual positioning method in the prior art can be effectively replaced, the rejection rate is reduced, and the productivity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding auxiliary positioning technical field, especially a device for controlling workpiece parallelism. BACKGROUND

[0002] Welding fixture is the device that is used more in current machining, needs not only keeping the stability of the workpiece to be processed, also needs to play the role of positioning. But the demand of different workpieces is different, and the parallelism of part workpieces needs to be controlled in the welding process to meet the design requirement.

[0003] At present, the welding of two side sealing plates and straight pipes is generally aligned and positioned by manual welding, but manual positioning has a certain proportion of inaccuracy, so that part of the workpiece cannot meet the parallelism requirement, thereby causing the problems of production scrap and rework, which is not conducive to workpiece production from the timeliness and labor cost. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned defects of the prior art, the purpose of the utility model is to provide a device for controlling workpiece parallelism, which is used to solve the problems of large error of manual positioning of workpiece parallelism, low production efficiency and high cost in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides a device for controlling workpiece parallelism, the workpiece includes a pipe and sealing plates to be welded on both sides thereof, the device includes a bottom plate, a fixed plate, a positioning column, a lower clamp plate and an upper clamp plate, the fixed plate is arranged in parallel on both sides of the bottom plate, the positioning column is arranged on the inner side of the fixed plate for positioning the position of the sealing plate, the upper clamp plate and the lower clamp plate are respectively detachably connected to the upper and lower positions of the inner side of the fixed plate, and the lower clamp plate and the upper clamp plate cooperate to position the pipe.

[0006] In an embodiment of the utility model, the lower clamp plate and the upper clamp plate are detachably connected with the fixed plate through positioning bolts.

[0007] In an embodiment of the utility model, the lower clamp plate, the upper clamp plate and the fixed plate are provided with through holes for the positioning bolts to pass through, and the positioning bolts are locked and connected with nuts after passing through the fixed plate and the lower clamp plate / upper clamp plate in sequence.

[0008] In an embodiment of the utility model, corresponding positions of the lower clamp plate and the upper clamp plate are provided with arc-shaped grooves matched with the pipe.

[0009] In an embodiment of the utility model, the workpiece further includes a flange pipe to be welded on one side of the pipe, and the bottom plate is provided with a positioning assembly for positioning the flange pipe.

[0010] In one embodiment of the present invention, the positioning component includes a positioning plate and a baffle plate spaced apart on the base plate. The positioning plate and the baffle plate are both arranged perpendicularly to the base plate. The positioning plate has a groove that mates with the flange pipe.

[0011] In one embodiment of the present invention, the outer side of the fixing plate is provided with reinforcing ribs that are connected to the base plate.

[0012] In one embodiment of this utility model, the fixing plate is provided with a machining hole for welding.

[0013] As described above, the device for controlling the parallelism of workpieces according to the present invention has the following beneficial effects: The positioning device of the present invention has a simple structure and is easy to use. Through the detachable connection between the upper and lower clamping plates and the fixing plate, it can not only clamp and lock the sealing plate, but also position the pipe fitting, ensure the parallelism of the sealing plates on both sides of the pipe fitting, improve the welding accuracy, and effectively replace the manual positioning method in the prior art, reduce the scrap rate and increase the production capacity. Attached Figure Description

[0014] Fig. 1 This is a schematic diagram of the structure of a device for controlling the parallelism of a workpiece disclosed in this utility model.

[0015] Fig. 2 This is a schematic diagram of the workpiece and device disclosed in this utility model.

[0016] Fig. 3 This is a schematic diagram of the structure of the device disclosed in this utility model.

[0017] Fig. 4 This is a disassembly diagram of a device for controlling the parallelism of a workpiece disclosed in this utility model.

[0018] Component designation explanation

[0019] 1. Base plate; 2. Fixing plate; 3. Positioning post; 4. Lower clamping plate; 5. Upper clamping plate; 41 / 51. Arc groove; 6. Positioning bolt; 7. Positioning plate; 71. Groove; 8. Baffle; 9. Reinforcing rib; 100. Workpiece; 110. Pipe fitting; 120. Sealing plate; 130. Flange pipe. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0021] Example 1

[0022] The utility model provides a kind of device for controlling the parallelism of workpiece, workpiece 100 includes pipe 110 and the plate 120 to be welded to its both sides, to ensure the parallelism of both sides plate 120 relative to pipe 110, therefore the device is provided for the auxiliary positioning pipe 110 and plate 120.

[0023] Please refer to Figs. 1-4 The device includes bottom plate 1, fixed plate 2, positioning column 3, lower clamping plate 4 and upper clamping plate 5, fixed plate 2 is arranged in parallel on the both sides of the bottom plate 1, positioning column 3 is arranged on the inner side of fixed plate 2 for positioning the position of plate 120, upper clamping plate 5 and lower clamping plate 4 are respectively detachably connected on the inner side of the upper and lower positions of the fixed plate 2;Lower clamping plate 4 and upper clamping plate 5 not only can be clamped and fixed with fixed plate 2 to plate 120, lower clamping plate 4 and upper clamping plate 5 can also be used for positioning the pipe 110, so as to realize the positioning of pipe 110 and plate 120, ensure the parallelism between plate 120 after welding.

[0024] Further, lower clamping plate 4 and upper clamping plate 5 are detachably connected with fixed plate 2 by positioning bolt 6.

[0025] Specifically, lower clamping plate 4, upper clamping plate 5 and fixed plate 2 are provided with through holes for positioning bolt 6 to pass through, and positioning bolt 6 is locked and connected with nut after passing through fixed plate 2 and lower / upper clamping plate 5 in sequence.

[0026] In order to realize the limiting of upper clamping plate 5 and lower clamping plate 4 to pipe 110, the corresponding positions of lower clamping plate 4 and upper clamping plate 5 are provided with arc-shaped grooves 41 / 51 matched with pipe 110;The arc-shaped grooves in the upper and lower directions clamp pipe 110 together, realize the fixation of pipe 110 in the axial direction, and only can rotate in the axial direction.

[0027] Further, fixed plate 2 is provided with processing hole for welding, which facilitates the welding head to extend into the processing hole and weld the joint.

[0028] Further, the outer side of fixed plate 2 is provided with reinforcing rib 9 connected with bottom plate 1. The reinforcing rib 9 can provide support force for fixed plate 2, ensure that fixed plate 2 is always perpendicular to bottom plate 1, so as to ensure the parallelism of both sides plate 120.

[0029] Working principle: in use, first, place both sides plate 120 respectively close to the inner side of fixed plate 2, and position the position of plate 120 by positioning column 3;Then, tighten nut after positioning bolt 6 passes through fixed plate 2 and lower clamping plate 4, to ensure that both sides plate 120 are clamped and fixed by lower clamping plate 4;Then, place pipe 110 in the arc-shaped groove of lower clamping plate 4, rotate to the corresponding position, and lock upper clamping plate 5 by positioning bolt 6, thereby completing the position positioning of pipe 110 and both sides plate 120 and the parallelism positioning of both sides plate 120.

[0030] Embodiment 2

[0031] The embodiment provides a device for controlling parallelism of a workpiece, which provides all the technical features disclosed in embodiment 1, and the difference lies in that:

[0032] The workpiece 100 further comprises a flange pipe 130 to be welded on one side of the pipe 110, and the bottom plate 1 is provided with a positioning assembly for positioning the flange pipe 130.

[0033] Specifically, the positioning assembly comprises a positioning plate 7 and a baffle plate 8 which are arranged on the bottom plate 1 in a spaced manner, and the positioning plate 7 and the baffle plate 8 are arranged vertically to the bottom plate 1, and the positioning plate 7 is provided with a groove 71 matched with the flange pipe 130. The pipe part of the flange pipe 130 can be placed in the groove 71, and the eaves of the flange pipe 130 can be just clamped between the positioning plate 7 and the baffle plate 8, so as to realize the positioning of the flange pipe 130.

[0034] Working principle: in use, first, the two side sealing plates 120 are respectively placed close to the inner side of the fixed plate 2, and the positions of the sealing plates 120 are positioned by the positioning column 3; then the positioning bolt 6 is screwed after passing through the fixed plate 2 and the lower clamp plate 4 to ensure that the two side sealing plates 120 are clamped and fixed by the lower clamp plate 4; then the pipe 110 is placed in the arc-shaped groove 41 / 51 of the lower clamp plate 4, and after being rotated to the corresponding position, the upper clamp plate 5 is locked by the positioning bolt 6, so the position positioning of the pipe 110 and the two side sealing plates 120 and the parallelism positioning of the two side sealing plates 120 are completed; then the eaves of the flange pipe 130 are tightly arranged between the positioning plate 7 and the baffle plate 8, and the pipe part of the flange pipe 130 is placed in the groove 71 of the positioning plate 7, at this time, the workpiece 100 is completed and can be welded.

[0035] In summary, the positioning device has the advantages of simple structure and convenient use, the upper and lower clamp plates and the fixed plate are detachably connected, the sealing plates can be clamped and locked, the pipe can be positioned, the parallelism of the two side sealing plates of the pipe is ensured, the welding precision is improved, the manual positioning method in the prior art can be effectively replaced, the scrap rate is reduced, and the production capacity is improved. Therefore, the positioning device effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0036] In the specification, the terms such as "upper", "lower", "left", "right", "front", "back", "middle" and "one" are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship is also regarded as the scope of the utility model without substantial change of the technical content.

[0037] The above embodiments only exemplarily illustrate the principles and effects of the present application, and are not used to limit the present application. All equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the present application should still be covered by the claims of the present application.

Claims

1. An apparatus for controlling parallelism of a workpiece, characterized by, The workpiece includes a pipe and sealing plates to be welded on both sides of the pipe, and the device includes a base plate, a fixing plate, positioning columns, a lower clamping plate and an upper clamping plate, the fixing plate is arranged in parallel on both sides of the base plate, the positioning columns are arranged on the inner side of the fixing plate for positioning the position of the sealing plates, the upper clamping plate and the lower clamping plate are respectively detachably connected to the upper and lower positions of the inner side of the fixing plate, and the lower clamping plate and the upper clamping plate are cooperated for positioning the pipe.

2. The apparatus for controlling parallelism of a workpiece according to claim 1, wherein, The lower clamping plate and the upper clamping plate are detachably connected with the fixing plate through positioning bolts.

3. The apparatus for controlling parallelism of a workpiece of claim 2, wherein, The lower clamping plate, the upper clamping plate and the fixing plate are provided with through holes for the positioning bolts to pass through, and the positioning bolts are locked and connected with nuts after passing through the fixing plate and the lower clamping plate / upper clamping plate in sequence.

4. The apparatus for controlling parallelism of a workpiece of claim 1, wherein, Corresponding positions of the lower clamping plate and the upper clamping plate are provided with arc-shaped grooves matched with the pipe.

5. A device for controlling the parallelism of a workpiece according to any one of claims 1 to 4, characterised in that, The workpiece further includes a flange pipe to be welded on one side of the pipe, and the base plate is provided with a positioning assembly for positioning the flange pipe.

6. The apparatus for controlling parallelism of a workpiece of claim 5, wherein, The positioning assembly includes positioning plates and baffle plates arranged at intervals on the base plate, the positioning plates and the baffle plates are arranged perpendicularly to the base plate, and the positioning plates are provided with recesses matched with the flange pipe.

7. A device for controlling the parallelism of a workpiece according to any one of claims 1 to 6, characterised in that, The outer side of the fixing plate is provided with a reinforcing rib connected with the base plate.

8. The apparatus for controlling parallelism of a workpiece of claim 7, wherein, The fixing plate is provided with a processing hole for welding.

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