CN216066498U

CN216066498U - Nonmetal directional pipe processing composite clamp

Info

Publication number: CN216066498U
Application number: CN202122825655.0U
Authority: CN
Inventors: 凌伟; 李庆; 程镇; 孙振; 陈胜钱; 胡建; 吴兵; 王寒生; 徐鑫; 熊壮; 雷丹
Original assignee: China Ordnance Industry Group Jiangshan Heavy Industry Research Institute Co ltd
Current assignee: China Ordnance Industry Group Jiangshan Heavy Industry Research Institute Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-03-18
Anticipated expiration: 2031-11-18

Abstract

A composite clamp for processing a non-metal oriented pipe comprises a bottom frame, a plurality of centering and fine-adjusting components and a pointed top component, wherein the centering and fine-adjusting components and the pointed top component are arranged on the bottom frame; the centering fine adjustment assembly comprises a left base, a right base, an adjusting screw rod and a pressing device, wherein the left base and the right base are connected onto the same sliding rail in a sliding manner, threaded holes with opposite rotation directions are formed in the lower ends of the left base and the right base, the two end parts of the adjusting screw rod are in threaded connection with the threaded holes in the lower ends of the left base and the right base, the thread grooves at the two end parts of the adjusting screw rod are opposite in rotation directions, bearings are arranged at the upper end parts of the left base and the right base, and a fastening assembly is hinged to the upper end part of the right base; one end of the pressing device is hinged to the upper end of the left base, the middle of the pressing device is bent into a semi-arc structure matched with the outer circular ring of the centering pipe, and the other end of the pressing device is provided with a groove and can be positioned and fastened through a fastening component at the upper end part of the right base. Can effectively improve the processing quality of products, reduce cost and improve efficiency.

Description

Nonmetal directional pipe processing composite clamp

Technical Field

The utility model relates to the technical field of directional pipe processing, in particular to a composite clamp for processing a nonmetal directional pipe.

Background

The directional tube is a core component on a launching device of a certain weapon system, related technical parameters of the directional tube are an important performance index in the weapon system, and the processing quality of the directional tube directly influences the performance of weapon equipment, so that the processing precision of a product needs to be strictly ensured.

As a core component in a certain weapon system, the production and processing of a non-metal oriented tube is always an important control item in the production process, the oriented tube is formed by winding a non-metal composite material, the length of the oriented tube is more than 7000 mm, and the straightness, roundness and cylindricity of the tube after winding and demolding are not good. In the process of processing the product, a square groove with the length and width of 180 multiplied by 80mm and a key groove with the depth of 32 multiplied by 10mm and the depth of 4mm are respectively milled at two ends of the tube wall, the distance between the two is 6597 +/-2 mm, and the included angle is 180 degrees.

The existing processing mode is as follows: a V-shaped block is used for a special platform to align a directional pipe by taking the outer circular surface of the directional pipe processed by the pipe wall as a reference, a central line of a 180X80mm window is scribed at one end of the pipe wall, then the pipe wall is transferred to a machine tool to align the pipe with a line pair cutter, the 180X80mm window is processed, then a workpiece is disassembled, secondary alignment and clamping are needed, and a key groove with the depth of 32X 10mm and the depth of 4mm opposite to the other end of the pipe wall is processed.

In the processing process, as the thin-wall directional pipe reaches more than 7000 mm, and the straightness and cylindricity of the pipe have certain errors, each directional pipe needs to be firstly scribed by a fitter, a 180 mm square groove is firstly processed by line alignment clamping before equipment processing, then a workpiece is disassembled, and a keyway with the depth of 32 mm by 10mm is processed by re-line alignment clamping the workpiece. In the process, a bench worker needs to mark, process the repeated line once and process the repeated line twice, the marking reference is used as a rough reference of the processing, so that a large error exists, the positioning reference between the two working procedures is not coincident, the consistency of the product quality is difficult to guarantee, and meanwhile, when a worker aligns according to the line and has a large error, a great hidden danger of the product quality exists. The operation processes of marking, dismounting, aligning and the like in the production process are complicated, and the production efficiency of the product is seriously restricted.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides the composite clamp for processing the nonmetal oriented tube, which can effectively improve the processing quality of products, reduce cost and improve efficiency.

A non-metal oriented pipe processing composite clamp comprises an underframe, a plurality of centering and fine-adjusting components and a tip component, wherein the centering and fine-adjusting components and the tip component are arranged on the underframe and used for positioning and clamping an oriented pipe; the centering fine adjustment assembly comprises a left base, a right base, an adjusting screw rod and a pressing device, wherein the left base and the right base are connected to the same slide rail in a sliding manner, threaded holes with opposite rotation directions are formed in the lower ends of the left base and the right base, the two end parts of the adjusting screw rod are in threaded connection with the threaded holes in the lower ends of the left base and the right base, the thread grooves at the two end parts of the adjusting screw rod are opposite in rotation directions, bearings are arranged at the upper end parts of the left base and the right base, and a fastening assembly is hinged to the upper end part of the right base; one end of the pressing device is hinged to the upper end of the left base, the middle of the pressing device is bent into a semi-arc structure matched with the outer circular ring of the centering pipe, and the other end of the pressing device is provided with a slot and can be positioned and fastened through a fastening component at the upper end part of the right base; the pointed top component is vertically arranged on the bottom frame, and the upper end part of the pointed top component is supported on the lower end surface of the plugging mechanism seat outside the directional pipe.

The centering and fine-tuning assembly corresponds to each ring after rough machining of the outside of the directional tube, and the outer circular surfaces of two bearings in the same centering and fine-tuning assembly are externally tangent to the outer end surface of the same ring outside the directional tube.

The chassis is provided with 4 centering fine adjustment assemblies, and the connecting lines of the positioning centers of the 4 centering fine adjustment assemblies are flush with the transverse center line of the chassis.

The underframe is a rectangular frame structure formed by welding two transverse rods and a plurality of longitudinal rods, and an inclined supporting rod is arranged between every two adjacent longitudinal rods.

The bottom of the bottom frame is provided with a plurality of positioning blocks, and the lower end faces of the positioning blocks are flush with each other.

The outer end faces of the two cross rods are uniformly provided with a plurality of lifting hooks.

The upper end of the slide rail is provided with a T-shaped chute, the left base and the right base have the same structure, and the lower end of the left base is of a T-shaped structure matched with the T-shaped chute.

The middle parts of the upper ends of the left base and the right base are recessed to form bearing mounting grooves, two side surfaces of each bearing mounting groove are provided with symmetrical pin holes, and the pin shaft penetrates through the through hole in the middle of the bearing and then two end parts of the pin shaft are mounted in the symmetrical pin holes.

The fastening assembly comprises a U-shaped block, a screw rod and a fastening nut, the lower end of the U-shaped block is hinged to the right base through a pin shaft, the screw rod is vertically fixed on the U-shaped block, and the nut is in threaded connection with the screw rod.

The sharp top subassembly includes the bottom plate, connects montant, the cover on the bottom plate perpendicularly and the sharp top of fixing at the sleeve top vertically outside the montant, and the external screw thread is established to the montant outside, and the internal thread that matches with the external screw thread on the montant is established to the sleeve inside.

The utility model can complete the processing content by clamping the oriented tube once, thereby ensuring that the positioning reference is superposed to eliminate errors.

The utility model designs a device which is similar to a V-shaped block structure and is provided with a fine adjustment structure, and the alignment and positioning are realized by taking a processed ring as a reference, and because the straightness of a pipe is poor, the allowance of the processed excircle is not uniform, and the allowance error is 1-3mm, only fine adjustment is needed by an operator, and the adjustment amplitude is not large; meanwhile, the utility model has the function of machining a clamp, can realize the positioning and clamping of workpieces and is convenient for positioning and clamping elements on a machine tool.

The utility model is convenient for clamping, aligning and positioning workpieces and is convenient for carrying and hoisting.

The tool is mainly used for solving the difficult problems that the overlong thin-wall directional pipe is difficult to line, align and clamp, and the tool can effectively solve the problems, effectively improve the processing quality of products and achieve the aims of cost reduction and efficiency improvement.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial block diagram of the present invention;

FIG. 3 is a block diagram of the present invention in use;

FIG. 4 is a cross-sectional view of the present invention in use;

in the figure: 1-an underframe, 2-a slide rail, 3-a tip assembly, 4-a left base, 5-a right base and 6-an adjusting screw rod; 7-bearing, 8-pressing device, 9-positioning block, 10-lifting hook and 11-orientation tube.

Detailed Description

In the figures 1 and 2, the clamp of the utility model mainly comprises a 1-bottom frame, a 2-slide rail, a 3-top assembly, a 4-left base, a 5-right base and a 6-adjusting screw rod; 7-bearing, 8-pressing device, 9-positioning block and 10-lifting hook.

The chassis 1 is welded by alloy steel and used as a base body of the clamp, and the rigidity of the whole chassis is good; the underframe 1 is a rectangular frame structure formed by welding two transverse rods and a plurality of longitudinal rods, an inclined supporting rod is arranged between the adjacent longitudinal rods, a plurality of positioning blocks 9 are welded at the bottom of the underframe 1, the end faces of the positioning blocks 9 are parallel and level after processing and serve as reference faces, and meanwhile, the positioning blocks are also used as reference blocks of a directional pipe for platform scribing and machine tool clamping, so that tool setting and alignment are facilitated. The outer end faces of the two cross rods are uniformly provided with a plurality of lifting hooks 10. 4 slide rails 2 extending along the width direction are arranged on the underframe 1 side by side, each slide rail 2 is provided with a centering and fine-tuning assembly consisting of a bearing 7, a left base 4, an adjusting screw 6, a right base 5 and a pressing device 8, and the connecting lines of the positioning centers of the 4 centering and fine-tuning assemblies are parallel and level to the transverse center line of the underframe 1.

The 4 centering and fine-tuning components correspond to each ring after rough machining on the outside of the directional tube 11, the outer circular surfaces of two bearings 7 in the same centering and fine-tuning component are externally tangent to the outer end surface of the same ring on the outside of the directional tube 11 and used for supporting the directional tube, wherein the upper end part of the slide rail 2 is provided with a T-shaped structure, the left base 4 and the right base 5 have the same structure, the lower end part is a T-shaped slide block matched with the T-shaped slide groove, the left base 4 and the right base 5 are connected on the same slide rail 2 in a sliding way, the lower end of the left base 4 is provided with a left-handed thread hole, the lower end of the right base 5 is provided with a right-handed thread hole, one end of an adjusting screw rod 6 is provided with a left-handed thread which is screwed with the left base 4, the other end is provided with a right-handed thread which is screwed with the right base 5, when the adjusting screw 6 is rotated, the left base 4 and the right base 5 can simultaneously slide inwards or outwards at equal intervals in the track of the slide rail 2, so that the center of the self-centering directional pipe is vertically offset; the middle parts of the upper ends of the left base 4 and the right base 5 are recessed to form bearing mounting grooves, two side surfaces of each bearing mounting groove are provided with symmetrical pin holes, pin shafts penetrate through holes in the middle of the bearings 7 and two end parts of the pin shafts are mounted in the symmetrical pin holes, when workpieces are not mounted or not tightly pressed, the bearings 7 and the workpieces placed naturally can freely rotate easily by means of small manpower, and the labor intensity of rotating the workpieces in the alignment process of operating personnel is reduced.

The pinnacle component 3 is vertically arranged on the underframe 1, and the upper end part of the pinnacle component 3 is supported on the lower end surface of a plugging mechanism seat outside the orientation tube 11. The sharp top subassembly 3 includes the bottom plate, connects montant, the cover on the bottom plate perpendicularly and the sharp top of fixing at the sleeve top vertically outside the montant, and the external screw thread is established to the montant outside, and the internal thread that matches with the external screw thread on the montant is established to the sleeve inside. The centre assembly 3 can adjust the centre supporting height through the spiral, is used as a base for supporting the directional pipe plugging mechanism, prevents the directional pipe from rotating, and is used as a supporting point after clamping.

The pressing device 8 is an annular composite material flexible belt, so that the workpiece is prevented from being crushed during fastening, and the flexible contact fastening effect of the workpiece are better. One end of the pressing device 8 is hinged to the upper end of the left base 4, the middle part of the pressing device is bent into a semi-arc structure matched with the outer circular ring of the centering pipe, and the other end of the pressing device is provided with a slot and can be positioned and fastened through a fastening component at the upper end part of the right base 5; the fastening component comprises a U-shaped block, a screw rod and a fastening nut, the lower end of the U-shaped block is hinged to the right base 5 through a pin shaft, the screw rod is vertically fixed on the U-shaped block, and the nut is in threaded connection with the screw rod.

Fig. 3 and 4 are schematic diagrams of the working state of the clamp, when the clamp is used for the first time, the sizing component is adjusted to a proper position by means of a deep and shallow ruler, the left or right base is ensured to be consistent with the end surface position of the corresponding slide rail, then the clamp is placed on a scribing platform, the orientation tube 11 is placed in the middle of the paired bearings 7, the work piece is easily and conveniently rotated in a large scale, the center line of the orientation tube 11 can be quickly leveled by finely adjusting and rotating each adjusting screw rod 6, the center line of a 180X80mm window (which is an inner frame of a plugging mechanism seat of the orientation tube 11) can be scribed after the adjustment is finished, the center line is the center line of a 180X80 rectangular square block 80mm, the spiral part in the center point component 3 is rotated after scribing is finished, the spiral part is supported below the plugging mechanism seat, each pressing device is screwed, the plane where the center line of the 180X80mm rectangular square block is parallel to the center line of the orientation tube 11 is positioned with the horizontal plane, then the clamp and the 356911 horizontal plane are integrally hoisted to the TK6911 platform, and (5) aligning the cutter and then processing. Firstly, a square groove with the pipe wall length and width of 180X80mm is machined, the assembly is integrally hoisted and aligned after machining, a workpiece and clamp assembly is hoisted and rotated 180 degrees, the assembly is placed on an equipment platform, the alignment is positioned through a positioning block 9 of the clamp body, the positioning block 9 is attached to a positioning device on a machine tool, the operation is fast and convenient, key grooves with the depth of 32X 10mm and the depth of 4mm opposite to each other are machined, the critical dimension of 6597 +/-2 mm and the 180-degree included angle between the square groove and the key groove can be effectively ensured, and the machining tool setting datum is inconsistent due to the fact that the loading and unloading processes occur in the machining processes of the two existing schemes, and therefore the dimension is not easy to ensure; by adopting the clamp, the orientation tube 11 does not rotate in the process of processing 180X80mm and 32X 10mm deep key slots with the depth of 4mm, so that an included angle of 180 degrees between the orientation tube and the key slots can be well ensured, and the aims of reducing cost and improving efficiency are fulfilled while the product quality is ensured.

With this kind of directional pipe of this kind of anchor clamps processing, can realize once alignment, the processing of this product weight of closing size can be accomplished to the directional pipe of clamping, has accomplished in the course of working that 180x80mm, 32 x 10mm deep 4mm keyway of location basis closes the processing 180x80mm, as the location benchmark, relies on the positioning block location alignment of anchor clamps body, and two positions of processing pipe only carry out once the clamping to the work piece, and the tool setting benchmark is unified, can effectively guarantee product quality. Only need a clamping to look for, just improved production efficiency by a wide margin, adopt the device also to reduce workman's intensity of labour by a wide margin simultaneously. The processing of the type of the directional pipes with different specifications can be realized by adjusting the positions of the clamp body and other devices, so that the device has great popularization and application values.

Claims

1. The utility model provides a nonmetal directional pipe processing composite jig which characterized in that: the device comprises an underframe (1), a plurality of centering and fine-adjusting components and a tip component (3), wherein the centering and fine-adjusting components are arranged on the underframe (1) and used for positioning and clamping a directional pipe (11), slide rails (2) which are in one-to-one correspondence with the centering and fine-adjusting components are arranged on the underframe (1), and the slide rails (2) are arranged side by side at intervals and extend along the width direction of the underframe (1); the centering fine-adjustment assembly comprises a left base (4), a right base (5), an adjusting screw rod (6) and a pressing device (8), wherein the left base (4) and the right base (5) are connected to the same slide rail (2) in a sliding manner, threaded holes with opposite turning directions are formed in the lower ends of the left base (4) and the right base (5), two end parts of the adjusting screw rod (6) are connected to the threaded holes in the lower ends of the left base (4) and the right base (5) in a threaded manner, threaded grooves in two end parts of the adjusting screw rod (6) are opposite in turning directions, bearings (7) are arranged at the upper ends of the left base (4) and the right base (5), and a fastening assembly is hinged to the upper end of the right base (5); one end of the pressing device (8) is hinged to the upper end of the left base (4), the middle part of the pressing device is bent into a semi-arc structure matched with a circular ring outside the centering pipe, and the other end of the pressing device is provided with a groove and can be positioned and fastened through a fastening component at the upper end part of the right base (5); the pinnacle component (3) is vertically installed on the bottom frame (1), and the upper end part of the pinnacle component (3) is supported on the lower end face of a plugging mechanism seat outside the directional pipe (11).

2. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the centering and fine-tuning assembly corresponds to each ring roughly machined outside the directional tube (11), and the outer circular surfaces of two bearings (7) in the same centering and fine-tuning assembly are externally tangent to the outer end surface of the same ring outside the directional tube (11).

3. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the chassis (1) is provided with 4 centering and fine-adjusting components, and the connecting line of the positioning centers of the 4 centering and fine-adjusting components is flush with the transverse center line of the chassis (1).

4. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the underframe (1) is a rectangular frame structure formed by welding two cross rods and a plurality of longitudinal rods, and inclined support rods are arranged between the adjacent longitudinal rods.

5. The composite clamp for processing the non-metal oriented tube as claimed in claim 1 or 4, wherein: the bottom of the chassis (1) is provided with a plurality of positioning blocks (9), and the lower end faces of the positioning blocks (9) are flush with each other.

6. The composite clamp for processing the non-metal oriented pipe as recited in claim 5, wherein: the outer end surfaces of the two cross rods are uniformly provided with a plurality of lifting hooks (10).

7. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the upper end of the sliding rail (2) is provided with a T-shaped sliding groove, the left base (4) and the right base (5) have the same structure, and the lower end of the left base is of a T-shaped structure matched with the T-shaped sliding groove.

8. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the middle parts of the upper ends of the left base (4) and the right base (5) are downwards recessed to form bearing mounting grooves, two side surfaces of each bearing mounting groove are provided with symmetrical pin holes, and pin shafts penetrate through holes in the middle of the bearings (7) and then are mounted in the symmetrical pin holes at two end parts.

9. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the fastening assembly comprises a U-shaped block, a screw rod and a fastening nut, the lower end of the U-shaped block is hinged to the right base (5) through a pin shaft, the screw rod is vertically fixed on the U-shaped block, and the nut is in threaded connection with the screw rod.

10. The composite clamp for processing the non-metal oriented pipe according to claim 1, wherein: the sharp top component (3) comprises a bottom plate, a vertical rod vertically connected to the bottom plate, a sleeve sleeved outside the vertical rod and a sharp top vertically fixed to the top of the sleeve, wherein an external thread is arranged outside the vertical rod, and an internal thread matched with the external thread on the vertical rod is arranged inside the sleeve.