Gas cylinder nozzle inner hole turning clamp

Abstract

The utility model discloses a gas cylinder nozzle inner hole turning clamp, which belongs to the technical field of clamps and comprises a lathe spindle box. A lathe spindle is arranged on the upper portion of the front side of the lathe spindle box, and a lathe body guide rail is arranged under the lathe spindle and connected with the front side of the lathe spindle box. A front positioning and clamping plate and a front positioning mechanism are arranged on the lathe bed guide rail, the front positioning mechanism is fixedly mounted on the lathe bed guide rail through the front positioning and clamping plate, and a rear jacking mechanism is connected to the lathe spindle box in a penetrating manner; the rear jacking mechanism comprises an air cylinder and a rear jacking shaft, the air cylinder is connected with a rear end shaft head of the rear jacking shaft, the rear jacking shaft penetrates into the lathe spindle box through the rear side of the lathe spindle box and then penetrates out of the front side of the lathe spindle box through a lathe spindle, and the rear jacking shaft is connected with the lathe spindle through a flat key. According to the utility model, rapid and accurate clamping of the gas cylinder is realized, and the coaxiality of inner hole processing of the cylinder neck is effectively ensured; the stability of the machining process is ensured, and the machining precision and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of clamp, specifically relates to a gas cylinder nozzle inner hole turning clamp. BACKGROUND

[0002] In prior art, the turning machining of the gas cylinder nozzle inner hole usually adopts the traditional clamp mode, such as three-jaw chuck or special clamp sleeve, but these methods often have problems such as low positioning accuracy, unstable clamping force, etc., leading to large deviation of the concentricity of the machined nozzle inner hole, and affecting the service performance of the gas cylinder. In addition, the traditional clamp is complicated to adjust, and the production efficiency is low. Therefore, a gas cylinder nozzle inner hole turning clamp capable of solving the above problems is needed. SUMMARY

[0003] The utility model is just in view of the above -mentioned problem, make up the deficiency of prior art, provide a kind of gas cylinder nozzle inner hole turning clamp that can be accurately positioned, stable clamping and easy to adjust, to solve the above problems.

[0004] To achieve the above object, the utility model adopts the following technical scheme.

[0005] The utility model provides a kind of gas cylinder nozzle inner hole turning clamp, including lathe spindle box, the front upper portion of lathe spindle box is provided with lathe spindle, lathe spindle is provided with lathe bed guide rail directly below, and lathe bed guide rail is connected with the front side of lathe spindle box;Front positioning clamping plate, front positioning mechanism are provided on lathe bed guide rail, and front positioning mechanism is fixedly installed on lathe bed guide rail by front positioning clamping plate, and rear taut mechanism is connected in the upper portion of lathe spindle box;The rear taut mechanism includes cylinder, rear taut shaft, and the power output end of cylinder is connected with the rear end shaft head of rear taut shaft, rear taut shaft passes through the rear side of lathe spindle box and enters lathe spindle box again and then passes through lathe spindle and comes out from the front side of lathe spindle box, flat key is provided on rear taut shaft, and rear taut shaft is connected by flat key between lathe spindle;Under the action of the telescopic action of cylinder, rear taut shaft can pass through lathe spindle box and move along lathe spindle back and forth, and the front end shaft head of rear taut shaft is clamped between front positioning mechanism and the gas cylinder to be machined;Under the action of the rotation of lathe spindle, rear taut shaft can be rotated, and then the gas cylinder to be machined is rotated.

[0006] Further, the front positioning mechanism includes front positioning seat, positioning seat adjusting mechanism, and nozzle sleeve ring structure is provided on the front positioning seat opposite to the front end shaft head of rear taut shaft, and positioning seat adjusting mechanism is symmetrically arranged on the left and right sides of the lower portion of front positioning seat.

[0007] Further, the bottle nozzle sleeve ring structure comprises a front positioning bearing seat, a first bearing, a front positioning outer ring pressing sleeve, and a front positioning inner ring shaft sleeve, the front positioning bearing seat is fixed on the front positioning seat by screws, the first bearing is arranged inside the front positioning bearing seat, the front positioning outer ring pressing sleeve is fixed on the front positioning bearing seat by screws and presses the outer ring of the first bearing, and the front positioning inner ring shaft sleeve is connected with the inner ring of the first bearing.

[0008] Further, the positioning seat adjusting mechanism comprises a front positioning top screw seat plate, an adjusting nut, and an adjusting bolt, the lower part of the front positioning top screw seat plate is fixed on the lower part of the front positioning seat by screws on the left and right sides, the adjusting nut is connected to the adjusting bolt, the adjusting bolt penetrates through the front positioning top screw seat plate and abuts against the front positioning seat, and the adjusting bolt is threadedly connected with the front positioning top screw seat plate.

[0009] Further, the rear clamping mechanism further comprises a driving fixed seat, a cylinder mounting seat, and an adapter sleeve, the adapter sleeve is arranged in the lathe spindle box and is fixedly connected with a flange plate in the lathe spindle box through screws, the driving fixed seat is arranged at the rear side of the lathe spindle box and is connected with the lathe spindle box through the adapter sleeve, the cylinder mounting seat is arranged at the rear end of the driving fixed seat, a cylinder is mounted on the cylinder mounting seat, a power output end of the cylinder is connected with a rear end shaft head of the rear clamping shaft through a fish eye joint, and the rear clamping shaft is connected with the lathe spindle through a key after penetrating through the driving fixed seat and the adapter sleeve.

[0010] Further, a stroke guide rail is fixedly arranged on the driving fixed seat, and the rear end shaft head of the rear clamping shaft is slidably connected to the stroke guide rail; the rear end shaft head comprises a clamping end bearing seat provided with a second bearing, a clamping end transition connecting sleeve, a clamping end bearing spacer, and a locking nut, the clamping end bearing seat provided with the second bearing and the clamping end bearing spacer are fixedly connected to the rear clamping shaft through the locking nut, the clamping end transition connecting sleeve is fixedly connected to the clamping end bearing seat through screws, a double lug seat is arranged on the rear side of the clamping end transition connecting sleeve, and the double lug seat is fixedly connected with the fish eye joint; the stroke guide rail comprises a guide key mounting seat and clamping end moving guide keys, the guide key mounting seat is fixedly arranged on the left and right sides of the rear clamping shaft, and the clamping end moving guide keys are fixedly arranged on the top of the two guide key mounting seats through screws, a guide groove is arranged on the clamping end bearing seat, and the clamping end bearing seat is slidably connected to the clamping end moving guide keys through the guide groove.

[0011] Further, the rear clamping mechanism further comprises a rear clamping fixed seat and a rear clamping guide copper sleeve, the rear clamping guide copper sleeve is connected to the key behind the front end shaft head of the rear clamping shaft, the rear clamping fixed seat is fixedly connected to the rear clamping guide copper sleeve through screws, and the rear clamping fixed seat is fixedly connected between the lathe spindle through screws.

[0012] The utility model discloses beneficial effect:

[0013] Compared with the prior art, the utility model discloses a rear top tight axle and front positioning mechanism cooperation through air cylinder drive, realized the quick, accurate clamping of gas cylinder, effectively guaranteed the coaxial degree of bottle mouth inner hole processing, simultaneously, utilize the key connection and make the rear top tight axle synchronous rotation with lathe main shaft, ensured the stability of processing process, improved the processing accuracy and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the gas cylinder bottle mouth inner hole turning clamp of the utility model.

[0015] Figure 2 It is the plane structure schematic diagram of the gas cylinder bottle mouth inner hole turning clamp of the utility model.

[0016] Figure 3 It is the three-dimensional structure schematic diagram of the rear top tight mechanism of the gas cylinder bottle mouth inner hole turning clamp of the utility model.

[0017] Figure 4 It is the enlarged structure schematic diagram of A part in Figure 2 .

[0018] Figure 5 It is the enlarged structure schematic diagram of B part in Figure 2 .

[0019] Figure 6 It is the enlarged structure schematic diagram of C part in Figure 2 .

[0020] Figure 7 It is the enlarged structure schematic diagram of D part in Figure 2 .

[0021] Figure 8 It is the enlarged structure schematic diagram of E part in Figure 2 .

[0022] Figure 9 It is the F direction structure schematic diagram of Figure 2 .

[0023] Marked in the figure: 1 is the front positioning clamping plate, 2 is the front positioning seat, 3 is the lathe bed guide rail, 4 is the front positioning bearing seat, 5 is the lathe spindle box, 6 is the first bearing, 7 is the front positioning outer ring pressure sleeve, 8 is the lathe spindle, 9 is the front positioning inner ring shaft sleeve, 10 is the front positioning top screw seat plate, 11 is the adjusting nut, 12 is the adjusting bolt; 13 is the rear tight fixing seat, 14 is the rear tight guide copper sleeve, 15 is the rear tight shaft, 16 is the flat key, 17 is the adapter sleeve, 18 is the second bearing, 19 is the driving fixed seat, 20 is the tight end bearing seat, 21 is the tight end bearing spacer sleeve, 22 is the locking nut, 23 is the guide key mounting seat, 24 is the tight end moving guide key, 25 is the tight end transition connecting sleeve, 26 is the double lug seat, 27 is the gas cylinder to be processed, 28 is the fish eye joint, 29 is the air cylinder, 30 is the air cylinder mounting seat, 31 is the rear tight mechanism, 32 is the front positioning mechanism. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clearly and clearly, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model.

[0025] In combination with Figures 1 to 9 As shown in the figure, the utility model embodiment provides a gas cylinder nozzle hole turning clamp, including lathe spindle box 5;The front side upper portion of lathe spindle box 5 is provided with lathe spindle 8, and lathe spindle 8 is provided with lathe bed guide rail 3 directly below, and lathe bed guide rail 3 is connected with the front side of lathe spindle box 5;Front positioning clamping plate 1 and front positioning mechanism 32 are arranged on lathe bed guide rail 3, and front positioning mechanism 32 is fixedly installed on lathe bed guide rail 3 through front positioning clamping plate 1;Specifically, front positioning clamping plate 1 and front positioning mechanism 32 are connected through screws and are fastened on lathe bed guide rail 3.

[0026] The rear tight mechanism 31 is connected through the rear side of lathe spindle box 5 into lathe spindle box 5 and then out of the front side of lathe spindle box 5 through lathe spindle 8, and the rear end shaft head of rear tight shaft 15 is connected with the power output end of air cylinder 29, and the rear tight shaft 15 is provided with flat key 16, and the rear tight shaft 15 is connected with lathe spindle 8 through flat key 16;Under the action of the expansion and contraction of air cylinder 29, rear tight shaft 15 can pass through lathe spindle box 5 and move forward and backward along lathe spindle 8, and the front end shaft head of rear tight shaft 15 is clamped between front positioning mechanism 32;Under the rotation of lathe spindle 8, rear tight shaft 15 can be rotated, and then drive the rotation of the gas cylinder to be processed 27.

[0027] Specifically, the front positioning mechanism 32 comprises a front positioning seat 2, a positioning seat adjusting mechanism, a bottle nozzle sleeve ring structure is arranged on the front positioning seat 2 which is opposite to the front end shaft head of the rear top pressing shaft 15, and the positioning seat adjusting mechanism is symmetrically arranged on the left and right sides of the lower part of the front positioning seat 2; the bottle nozzle sleeve ring structure comprises a front positioning bearing seat 4, a first bearing 6, a front positioning outer ring pressing sleeve 7, and a front positioning inner ring shaft sleeve 9, the front positioning bearing seat 4 is fixed on the front positioning seat 2 through screws, the first bearing 6 is arranged inside the front positioning bearing seat 4, the front positioning outer ring pressing sleeve 7 is fixed on the front positioning bearing seat 4 through screws and presses the outer ring of the first bearing 6, and the front positioning inner ring shaft sleeve 9 is connected with the inner ring of the first bearing 6; the positioning seat adjusting mechanism comprises a front positioning top screw seat plate 10, an adjusting nut 11, and an adjusting bolt 12, the lower part of the front positioning top screw seat plate 10 is fixed on the left and right sides of the lower part of the front positioning seat 2 through screws, the adjusting nut 11 is connected to the adjusting bolt 12, the adjusting bolt 12 penetrates through the front positioning top screw seat plate 10 and abuts against the front positioning seat 2, and the adjusting bolt 12 is in threaded connection with the front positioning top screw seat plate 10; through cooperation of the front positioning top screw seat plate 10 and the adjusting nut 11 and the adjusting bolt 12 arranged on the front positioning top screw seat plate 10, coaxiality between the front positioning seat 2 and the lathe main shaft 8 can be adjusted.

[0028] Specifically, the rear clamping mechanism 31 further comprises a driving fixed seat 19, a cylinder mounting seat 30 and an adapter sleeve 17, the adapter sleeve 17 is arranged in the lathe spindle box 5 and is fixedly connected with the flange plate in the lathe spindle box 5 through screws, the driving fixed seat 19 is arranged at the rear side of the lathe spindle box 5 and is connected with the lathe spindle box 5 through the adapter sleeve 17, the cylinder mounting seat 30 is arranged at the rear end of the driving fixed seat 19, the cylinder 29 is mounted on the cylinder mounting seat 30, the power output end of the cylinder 29 is connected with the rear end shaft head of the rear clamping shaft 15 through the fish eye joint 28, the rear clamping shaft 15 passes through the driving fixed seat 19, the adapter sleeve 17 and is connected with the lathe spindle 8 through the flat key 16. The driving fixed seat 19 is fixedly provided with a stroke guide rail, the rear end shaft head of the rear clamping shaft 15 is slidably connected with the stroke guide rail, the rear end shaft head comprises a clamping end bearing seat 20 provided with a second bearing 18, a clamping end transition connecting sleeve 25, a clamping end bearing spacer sleeve 21 and a locking nut 22, the clamping end bearing seat 20 provided with the second bearing 18 and the clamping end bearing spacer sleeve 21 are fixedly connected with the rear clamping shaft 15 through the locking nut 22, the clamping end transition connecting sleeve 25 is fixedly connected with the clamping end bearing seat 20 through screws, a double lug seat 26 is arranged at the rear side of the clamping end transition connecting sleeve 25, and the double lug seat 26 is fixedly connected with the fish eye joint 28; the stroke guide rail comprises a guide key mounting seat 23 and a clamping end moving guide key 24, the guide key mounting seat 23 is symmetrically fixed to the left and right sides of the rear clamping shaft 15, the clamping end moving guide key 24 is fixed to the top of the two guide key mounting seats 23 through screws respectively, a guide groove is arranged on the clamping end bearing seat 20, and the clamping end bearing seat 20 is slidably connected with the clamping end moving guide key 24 through the guide groove. The rear clamping mechanism 31 further comprises a rear clamping fixed seat 13 and a rear clamping guide copper sleeve 14, the rear clamping guide copper sleeve 14 is connected with the flat key 16 behind the front end shaft head of the rear clamping shaft 15, the rear clamping fixed seat 13 is fixedly connected with the rear clamping guide copper sleeve 14 through screws, and the rear clamping fixed seat 13 is fixedly connected with the lathe spindle 8 through screws.

[0029] In summary, the rear clamping shaft 15 is used in cooperation with the lathe spindle 8, the rear clamping shaft 15 can realize forward and backward movement and rotation, so that the clamping and rotation of the to-be-processed gas cylinder 27 are realized, and the purpose of turning the inner hole of the nozzle of the to-be-processed gas cylinder 27 is achieved; the cylinder 29 adopting the pneumatic working mode is clamped, the run-out value of the outer diameter of the nozzle of the to-be-processed gas cylinder 27 can be adjusted, the precision requirement after the inner hole of the nozzle of the to-be-processed gas cylinder 27 is processed can be ensured, and the use needs are met.

[0030] The working principle of the utility model is described in combination with the technical scheme and the drawings: first, manually put the nozzle at the front end of the gas cylinder 27 to be processed into the front positioning inner ring shaft sleeve 9 of the front positioning mechanism 32; then, start the air cylinder 29, control the air cylinder 29 to work at low pressure, push the rear clamping shaft 15 to move forward, make the shaft head at the front end of the rear clamping shaft 15 fit with the tail end shoulder of the gas cylinder 27 to be processed; at this time, manually rotate the gas cylinder 27 to be processed, and use the dial gauge or the micrometer, measure the outer diameter runout value of the nozzle at the front end of the gas cylinder 27 to be processed, through adjusting the position of the tail end of the gas cylinder 27 to be processed, make the outer diameter runout value of the nozzle at the front end of the gas cylinder 27 to be processed reach the required range value, then increase the input gas pressure value of the air cylinder 29, clamp the gas cylinder 27 to be processed; finally, control the lathe spindle 8 on the lathe spindle box 5 to start rotating, drive the rear clamping shaft 15 to rotate through the key 16, and then drive the gas cylinder 27 to be processed to rotate, complete the turning process of the inner hole of the nozzle at the front end of the gas cylinder 27 to be processed by the turning tool of the lathe.

[0031] It can be understood that the above specific description of the utility model is only used for illustrating the utility model and is not limited to the technical scheme described in the utility model embodiment, and the person skilled in the art should understand that the utility model can still be modified or replaced equivalently to achieve the same technical effect; as long as the use needs are met, it is within the protection scope of the utility model.

Claims

1. A gas cylinder nozzle bore turning fixture, characterized by: The lathe spindle box is provided with a lathe spindle on the upper part of the front side, a lathe bed rail is provided below the lathe spindle, and the lathe bed rail is connected with the front side of the lathe spindle box; a front positioning and clamping plate and a front positioning mechanism are arranged on the lathe bed rail, the front positioning mechanism is fixedly installed on the lathe bed rail through the front positioning and clamping plate, and a rear tensioning mechanism is connected through the lathe spindle box; the rear tensioning mechanism comprises a cylinder and a rear tensioning shaft, the power output end of the cylinder is connected with the rear end shaft head of the rear tensioning shaft, the rear tensioning shaft penetrates through the rear side of the lathe spindle box into the lathe spindle box and then penetrates out of the front side of the lathe spindle box through the lathe spindle, a flat key is arranged on the rear tensioning shaft, and the rear tensioning shaft is connected with the lathe spindle through the flat key; under the extension and retraction of the cylinder, the rear tensioning shaft can move forward and backward along the lathe spindle through the lathe spindle box, the front end shaft head of the rear tensioning shaft is clamped with the front positioning mechanism, and the cylinder can drive the rear tensioning shaft to rotate and then drive the gas cylinder to rotate under the rotation of the lathe spindle.

2. The bottle nozzle bore turning clamp according to claim 1, characterized in that: The front positioning mechanism comprises a front positioning seat and a positioning seat adjusting mechanism, a nozzle sleeve ring structure is arranged on the front positioning seat opposite to the front end shaft head of the rear tensioning shaft, and the positioning seat adjusting mechanism is symmetrically arranged on the lower part of the front positioning seat.

3. The bottle nozzle bore turning clamp according to claim 2, characterized in that: The nozzle sleeve ring structure comprises a front positioning bearing seat, a first bearing, a front positioning outer ring pressing sleeve and a front positioning inner ring shaft sleeve, the front positioning bearing seat is fixed on the front positioning seat, the first bearing is arranged in the front positioning bearing seat, the front positioning outer ring pressing sleeve is fixed on the front positioning bearing seat and presses the outer ring of the first bearing, and the front positioning inner ring shaft sleeve is connected with the inner ring of the first bearing.

4. The cylinder nozzle bore turning fixture of claim 2, wherein: The positioning seat adjusting mechanism comprises a front positioning jack seat plate, an adjusting nut and an adjusting bolt, the lower part of the front positioning jack seat plate is fixed on the lower part of the front positioning seat, the adjusting nut is connected with the adjusting bolt, the adjusting bolt penetrates through the front positioning jack seat plate and abuts against the front positioning seat, and the adjusting bolt is threadedly connected with the front positioning jack seat plate.

5. The bottle nozzle bore turning clamp according to claim 1, characterized in that: The rear tensioning mechanism further comprises a driving fixed seat, a cylinder mounting seat and an adapter sleeve, the adapter sleeve is arranged in the lathe spindle box and fixedly connected with the flange plate in the lathe spindle box, the driving fixed seat is arranged on the rear side of the lathe spindle box and connected with the lathe spindle box through the adapter sleeve; the cylinder mounting seat is arranged at the rear end of the driving fixed seat, the cylinder is mounted on the cylinder mounting seat, the power output end of the cylinder is connected with the rear end shaft head of the rear tensioning shaft through a fish eye joint, and the rear tensioning shaft is connected with the lathe spindle through the flat key after penetrating through the driving fixed seat and the adapter sleeve.

6. The cylinder nozzle bore turning fixture of claim 5, wherein: The stroke guide rail is fixedly arranged on the driving fixed seat, and the rear end shaft head of the rear clamping shaft is slidably connected to the stroke guide rail; the rear end shaft head comprises a clamping end bearing seat provided with a second bearing, a clamping end transition connecting sleeve, a clamping end bearing spacer and a locking nut, the clamping end bearing seat provided with the second bearing and the clamping end bearing spacer are fixedly connected to the rear clamping shaft through the locking nut, the clamping end transition connecting sleeve is fixedly connected to the clamping end bearing seat, a double lug seat is arranged on the rear side of the clamping end transition connecting sleeve, and the double lug seat is fixedly connected with the fish eye joint; the stroke guide rail comprises a guide key mounting seat and a clamping end moving guide key, the guide key mounting seat is symmetrically fixed to the left and right sides of the rear clamping shaft, the clamping end moving guide key is fixed to the top of the two guide key mounting seats respectively, a guide groove is arranged on the clamping end bearing seat, and the clamping end bearing seat is slidably connected to the clamping end moving guide key through the guide groove.

7. The bottle nozzle bore turning clamp according to claim 1, characterized in that: The rear clamping mechanism further comprises a rear clamping fixed seat and a rear clamping guide copper sleeve, the rear clamping guide copper sleeve is connected to the flat key behind the front end shaft head of the rear clamping shaft, the rear clamping fixed seat is fixedly connected to the rear clamping guide copper sleeve, and the rear clamping fixed seat is fixedly connected between the lathe main shaft.

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