Turning device for hollow long shaft parts

Abstract

The invention provides a hollow long shaft part turning device which comprises a rack, a control box is arranged on the upper surface of the rack, four-jaw chucks are rotationally arranged on the sides, close to the vertical center of the rack, of the control box, guide rails which are symmetrically distributed are arranged on the rack, a second sliding table is slidably arranged between the guide rails, and a turning box is arranged on the upper surface of the second sliding table. A rotating cylinder is rotatably arranged on the inner wall of the turning box, a turning cylinder is arranged on the side, close to the vertical center of the rack, of the rotating cylinder, a plurality of adjusting frames are slidably arranged on the outer side of the turning cylinder, turning tools are arranged on the sides, away from the turning cylinder, of the adjusting frames, and an adjusting module is arranged on the turning cylinder and used for automatically adjusting the extending length of the adjusting frames. According to the turning device for the hollow long shaft type part, the time for debugging can be saved according to the model, specification and machining requirements of the hollow long shaft type part, and the machining efficiency can be effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts processing, and particularly relates to a turning device for hollow long-shaft parts. Background Art

[0002] Hollow long-shaft automotive parts are important components in automotive manufacturing, and are usually used in drive systems, steering systems or other parts that require high strength and lightweight design. The characteristics of these parts are that they are relatively long in length and have a hollow structure inside, which helps to reduce weight while maintaining sufficient strength and rigidity. When producing hollow long-shaft parts, a turning device is required to perform turning on them.

[0003] For the existing turning device for hollow long-shaft parts, the hollow long-shaft part to be turned is placed on a dedicated fixture or chuck provided, and the hollow long-shaft part is clamped and fixed by the fixture or chuck to ensure that the slender workpiece can be firmly fixed, avoiding deviation or bending during the processing. Then, the chuck is controlled to drive the clamped hollow long-shaft part to rotate, and the cutting tool is controlled to extend into the inside of the hollow long-shaft part at the moving speed and position along the length direction of the workpiece to perform smooth cutting on the inner wall of the long-shaft part. However, in the actual use process, the position of the cutting tool is usually fixed during the cutting of the inner wall of the hollow long-shaft part. Since the model specifications of the hollow long-shaft parts to be processed are different, when cutting the inner walls of these hollow long-shaft parts with different model specifications, it is necessary for the staff to stop the machine and perform debugging to ensure that the cutting tool is in a suitable position to cut the inner wall of the hollow long-shaft part. And the debugging requires a certain amount of time and effort, which brings a great workload to the production and processing process and affects the processing efficiency. Summary of the Invention

[0004] In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a turning device for hollow long-shaft parts, which can quickly and stably adjust the position of the cutting tool according to the model, specification and processing requirements of the hollow long-shaft parts, save the time required for debugging, and can effectively improve the processing efficiency.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: A turning device for hollow long-axis parts, including a frame, a control box is arranged on the upper surface of the frame, and four-jaw chucks are rotatably arranged on one side of the control box close to the vertical center of the frame. Symmetrically distributed guide rails are arranged on the frame, and a second sliding table is slidably arranged between the guide rails. A turning box is arranged on the upper surface of the second sliding table. A rotating cylinder is rotatably arranged on the inner wall of the turning box. A turning cylinder is arranged on one side of the rotating cylinder close to the vertical center of the frame. A plurality of adjusting frames are slidably arranged on the outer side of the turning cylinder. Turning tools are arranged on one side of the adjusting frame away from the turning cylinder. An adjusting module is arranged on the turning cylinder, and the adjusting module is used to automatically adjust the extending length of the adjusting frame; A chassis is arranged on the lower side of the frame, and a rubber pad is adhesively fixed on the lower surface of the chassis; A bracket is arranged on the upper surface of the frame, an adjusting screw rod is rotatably arranged in the bracket, the adjusting screw rod is threadedly connected with the turning box, and a fourth motor is arranged on the outer side of the bracket. The output shaft of the fourth motor is fixedly connected with the adjusting screw rod through a coupling.

[0006] As a further improvement of the present invention, the adjusting module includes a first bidirectional screw rod rotatably arranged inside the turning cylinder. Symmetrically distributed adjusting blocks are threadedly connected to the outer side of the first bidirectional screw rod. A plurality of connecting rods are rotatably arranged on the outer sides of the adjusting blocks. One end of the connecting rod away from the adjusting block is respectively rotatably connected to the adjacent adjusting frame. A fifth motor is arranged in the middle of the inner part of the rotating cylinder. The output shaft of the fifth motor is fixedly connected with the first bidirectional screw rod through a coupling; An outer gear ring two is fixedly sleeved on the outer arc surface of the rotating cylinder. A second U-shaped seat is arranged at the bottom end inside the turning box. A second gear is rotatably arranged between the second U-shaped seat and the turning box through a rotating rod. The second gear is meshed with the outer gear ring two. A worm gear is fixedly sleeved on the outer arc surface of the rotating rod. Symmetrically distributed support plates are arranged at the bottom end inside the turning box. A worm is rotatably arranged between the support plates. The worm is meshed with the worm gear. A third motor is arranged inside the turning box. The output shaft of the third motor is fixedly connected with the worm through a coupling.

[0007] As a further improvement of the present invention, a first sliding table is slidably arranged between the guide rails. A sliding seat is arranged on the upper surface of the first sliding table. A sliding frame is slidably arranged on the upper side of the sliding seat. Symmetrically distributed adjusting seats are slidably arranged in the sliding grooves opened at the upper end of the sliding frame. Support wheels are rotatably arranged in the middle of the adjusting seats. A second bidirectional screw rod is rotatably arranged inside the sliding groove. A second motor is arranged on the outer side of the sliding frame. The output shaft of the second motor is fixedly connected with the second bidirectional screw rod through a coupling. Symmetrically distributed hydraulic push rods are arranged on the upper surface of the first sliding table. The telescopic ends of the hydraulic push rods are fixedly connected with the sliding frame; Buffer rubber rings are adhesively fixed on the outer arc surfaces of the support wheels.

[0008] As a further improvement of the present invention, an outer gear ring one is fixedly sleeved on the outer side of the four-jaw chuck. A U-shaped seat one is arranged at the inner bottom end of the control box. A gear one is rotatably arranged inside the U-shaped seat one through a rotating shaft. The gear one is meshed and connected with the outer gear ring one. A motor one is arranged at the inner bottom end of the control box. The output shaft of the motor one is fixedly connected with the rotating shaft through a coupling.

[0009] As a further improvement of the present invention, an integrated controller is arranged on the front side of the control box. The hydraulic push rod, the motor one, the motor two, the motor three, the motor four, and the motor five are all electrically connected to the integrated controller.

[0010] To sum up, compared with the prior art, the present application has at least the following beneficial technical effects:

[0011] First, slide the sliding table one to a suitable position. The integrated controller controls the operation of the motor two, and the integrated controller controls the operation of the hydraulic push rod. Through the cooperation of the motor two and the hydraulic push rod, the horizontal and vertical positions of the support wheel can be adjusted, so that the support wheel is in the best position for supporting the hollow long shaft part.

[0012] Second, place the hollow long shaft part to be turned on the four-jaw chuck to position the hollow long shaft part. The hollow long shaft part is supported by the support wheels on both sides. The integrated controller controls the operation of the motor four, and then drives the turning box to approach the hollow long shaft part to be turned, so that the turning cylinder is inserted into the inside of the hollow long shaft part.

[0013] Third, the integrated controller controls the operation of the motor five, so that the output shaft of the motor five drives the bidirectional lead screw one connected thereto to rotate. Through the threaded relationship between the bidirectional lead screw one and the adjusting block, the two adjusting blocks are driven to move in a direction away from each other, so as to adjust the extended length of the adjusting frame, and the adjusting frame drives the turning tool away from the turning cylinder to adjust the distance between the turning tool and the turning cylinder.

[0014] Fourth, the integrated controller controls the operation of the motor three. Through the meshing relationship between the worm and the worm wheel, the worm wheel is driven to rotate forward and backward reciprocally, so that the rotating cylinder drives the turning tool arranged on the outer side of the turning cylinder to rotate forward and backward reciprocally around the transverse center of the rotating cylinder, so that the turning tool rotates forward and backward reciprocally around the transverse center of the rotating cylinder, and the inner wall of the hollow long shaft part during rotation is quickly and stably turned.

[0015] Fifth, during the process of the turning tool rotating forward and backward reciprocally around the transverse center of the rotating cylinder, the integrated controller controls the motor five to continue to operate, so that the turning tool is stably and gradually away from the turning cylinder during the process of rotating forward and backward reciprocally around the transverse center of the rotating cylinder, and can adapt to the inner walls of hollow long shaft parts of different models and specifications during rotation to quickly and stably turn them. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a schematic internal sectional view structure diagram of the control box of the present invention;

[0018] Figure 3 is a schematic enlarged structure diagram at position A of the present invention;

[0019] Figure 4 is a schematic internal sectional view structure diagram of the turning box of the present invention;

[0020] Figure 5 is a schematic enlarged structure diagram at position B of the present invention;

[0021] Figure 6 is a schematic plan view structure diagram of the present invention.

[0022] In the figure: 101, frame; 102, chassis; 103, control box; 104, four-jaw chuck; 105, first external gear ring; 106, first U-shaped seat; 107, first gear; 108, first motor; 109, guide rail; 110, first slide; 111, sliding seat; 112, sliding frame; 113, adjusting seat; 114, support wheel; 115, second motor; 116, second slide; 201, turning box; 202, rotating cylinder; 203, turning cylinder; 204, adjusting frame; 205, turning tool; 206, first bidirectional lead screw; 207, adjusting block; 208, connecting rod; 209, second external gear ring; 210, second U-shaped seat; 211, second gear; 212, support plate; 213, worm; 214, third motor; 215, support; 216, adjusting lead screw; 217, fourth motor; 301, integrated controller. Specific embodiments

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] Such as Figure 2 、 6As shown in the figure, a turning device for a hollow long-axis part includes a frame 101. A control box 103 is arranged on the upper surface of the frame 101. Four-jaw chucks 104 are rotatably arranged on one side of the control box 103 close to the vertical center of the frame 101. Symmetrically distributed guide rails 109 are arranged on the frame 101. A second sliding table 116 is slidably arranged between the guide rails 109. A turning box 201 is arranged on the upper surface of the second sliding table 116. A rotating cylinder 202 is rotatably arranged on the inner wall of the turning box 201. A turning cylinder 203 is arranged on one side of the rotating cylinder 202 close to the vertical center of the frame 101. A plurality of adjusting frames 204 are slidably arranged on the outer side of the turning cylinder 203. Turning tools 205 are arranged on one side of each adjusting frame 204 away from the turning cylinder 203. An adjusting module is arranged on the turning cylinder 203 and is used to automatically adjust the extending length of the adjusting frame 204. An outer gear ring one 105 is fixedly sleeved on the outer side of the four-jaw chuck 104. A first U-shaped seat 106 is arranged at the bottom end inside the control box 103. A first gear 107 is rotatably arranged inside the first U-shaped seat 106 through a rotating shaft. The first gear 107 is meshed and connected with the outer gear ring one 105. A first motor 108 is arranged at the bottom end inside the control box 103. The output shaft of the first motor 108 is fixedly connected with the rotating shaft through a coupling. A bottom frame 102 is arranged on the lower side of the frame 101. A rubber pad is adhesively fixed on the lower surface of the bottom frame 102.

[0025] As Figure 4 , 5 shown in the figure, the adjusting module includes a first bidirectional lead screw 206 rotatably arranged inside the turning cylinder 203. Symmetrically distributed adjusting blocks 207 are threadedly connected to the outer side of the first bidirectional lead screw 206. A plurality of connecting rods 208 are rotatably arranged on the outer side of each adjusting block 207. One end of each connecting rod 208 away from the adjusting block 207 is respectively rotatably connected to the adjacent adjusting frame 204. A fifth motor is arranged in the middle inside the rotating cylinder 202. The output shaft of the fifth motor is fixedly connected with the first bidirectional lead screw 206 through a coupling. An outer gear ring two 209 is fixedly sleeved on the outer arc surface of the rotating cylinder 202. A second U-shaped seat 210 is arranged at the bottom end inside the turning box 201. A second gear 211 is rotatably arranged between the second U-shaped seat 210 and the turning box 201 through a rotating rod. The second gear 211 is meshed and connected with the outer gear ring two 209. A worm gear is fixedly sleeved on the outer arc surface of the rotating rod. Symmetrically distributed support plates 212 are arranged at the bottom end inside the turning box 201. A worm 213 is rotatably arranged between the support plates 212. The worm 213 is meshed with the worm gear. A third motor 214 is arranged inside the turning box 201. The output shaft of the third motor 214 is fixedly connected with the worm 213 through a coupling. A support 215 is arranged on the upper surface of the frame 101. An adjusting lead screw 216 is rotatably arranged inside the support 215. The adjusting lead screw 216 is threadedly connected with the turning box 201. A fourth motor 217 is arranged on the outer side of the support 215. The output shaft of the fourth motor 217 is fixedly connected with the adjusting lead screw 216 through a coupling.

[0026] As Figure 2 , 3 shown, a first sliding table 110 is slidably arranged between the guide rails 109. A sliding seat 111 is arranged on the upper surface of the first sliding table 110. A sliding frame 112 is slidably arranged on the upper side of the sliding seat 111. Symmetrically distributed adjusting seats 113 are slidably arranged in the chutes opened at the upper ends of the sliding frame 112. Support wheels 114 are rotatably arranged in the middle of the adjusting seats 113. A two-way lead screw two is rotatably arranged inside the chute. A second motor 115 is arranged on the outside of the sliding frame 112. The output shaft of the second motor 115 is fixedly connected to the two-way lead screw two through a coupling. Hydraulic push rods are symmetrically distributed on the upper surface of the first sliding table 110. The telescopic ends of the hydraulic push rods are fixedly connected to the sliding frame 112 respectively.

[0027] As Figure 1 shown, an integrated controller 301 is arranged on the front side of the control box 103. The hydraulic push rods, the first motor 108, the second motor 115, the third motor 214, the fourth motor 217, and the fifth motor are all electrically connected to the integrated controller 301.

[0028] During use, slide the first sliding table 110 to a suitable position so that the support wheels 114 are in the best position for supporting the hollow long shaft part. Then, the integrated controller 301 controls the operation of the second motor 115, so that the output shaft of the second motor 115 drives the two-way lead screw two to rotate. Through the threaded relationship between the two-way lead screw two and the adjusting seats 113, the adjusting seats 113 are driven to move closer to each other or away from each other, and the horizontal position of the support wheels 114 is adjusted. The integrated controller 301 controls the operation of the hydraulic push rods, so that the telescopic ends of the hydraulic push rods drive the sliding frame 112 to slide relative to the sliding seat 111, and the vertical position of the support wheels 114 is adjusted. Through the cooperation of the second motor 115 and the hydraulic push rods, the horizontal and vertical positions of the support wheels 114 can be adjusted so that the support wheels 114 are in the best position for supporting the hollow long shaft part;

[0029] Place the hollow long shaft part to be turned on the four-jaw chuck 104, and then make the four-jaw chuck 104 clamp and fix the hollow long shaft part to position the hollow long shaft part. At this time, the hollow long shaft part contacts the two support wheels 114 on both sides, and the hollow long shaft part is supported by the two support wheels 114 on both sides;

[0030] The integrated controller 301 controls the operation of the fourth motor 217, so that the output shaft of the fourth motor 217 drives the adjusting lead screw 216 connected thereto to rotate. Through the threaded relationship between the adjusting lead screw 216 and the turning box 201, the turning box 201 is driven to slide between the guide rails 109, and then the turning box 201 is driven to approach the hollow long shaft part to be turned, so that the turning cylinder 203 is inserted into the inside of the hollow long shaft part;

[0031] Then, the integrated controller 301 controls the operation of the fifth motor, causing the output shaft of the fifth motor to drive the bidirectional lead screw 206 connected thereto to rotate. Due to the threaded relationship between the bidirectional lead screw 206 and the adjusting block 207, the adjusting blocks 207 on both sides move in a direction away from each other. During the movement of the adjusting block 207: rotation occurs between the adjusting block 207 and the connecting rod 208, and rotation occurs between the connecting rod 208 and the adjusting frame 204. As a result, the adjusting block 207 drives the adjusting frame 204 to slide relative to the turning cylinder 203 through the connecting rod 208, adjusting the extended length of the adjusting frame 204, driving the turning tool 205 away from the turning cylinder 203, and adjusting the distance between the turning tool 205 and the turning cylinder 203.

[0032] Then, the integrated controller 301 controls the operation of the third motor 214, causing the output shaft of the third motor 214 to drive the worm 213 connected thereto to rotate reciprocally in both forward and reverse directions. Due to the meshing relationship between the worm 213 and the worm gear, the worm gear rotates reciprocally in both forward and reverse directions. Through the meshing relationship between the second gear 211 and the second external tooth ring 209, the rotating cylinder 202 where the second external tooth ring 209 is located rotates reciprocally in both forward and reverse directions, causing the turning tool 205 provided on the outer side of the turning cylinder 203 to rotate reciprocally in both forward and reverse directions around the horizontal center of the rotating cylinder 202.

[0033] The integrated controller 301 controls the operation of the first motor 108, causing the first motor 108 to drive the first gear 107 to rotate. Through the meshing relationship between the first gear 107 and the first external tooth ring 105, the four-jaw chuck 104 where the first external tooth ring 105 is located rotates. Through the cooperation between the four-jaw chuck 104 and the support wheel 114, the hollow long shaft part rotates. By making the hollow long shaft part rotate by itself in cooperation with the rotation of the turning tool 205 around the axis, this centrifugal force can be effectively offset, thereby reducing the risk of workpiece deformation.

[0034] During the process of the turning tool 205 rotating reciprocally in both forward and reverse directions around the horizontal center of the rotating cylinder 202, the integrated controller 301 controls the fifth motor to continue operating, causing the turning tool 205 to gradually and stably move away from the turning cylinder 203 during the reciprocal rotation around the horizontal center of the rotating cylinder 202, and quickly and stably turning the inner wall of the hollow long shaft part during the rotation process.

[0035] According to another embodiment of the present invention, as Figure 3 shown, buffer rubber rings are adhesively fixed to the outer arc surfaces of the support wheels 114. When turning the inner wall of the hollow long shaft part, the buffer rubber rings on the outer sides of the support wheels 114 enable the inner wall of the hollow long shaft part to be in flexible contact with the support wheels 114, effectively avoiding abrasion of the outer wall of the hollow long shaft part during the turning process.

[0036] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A turning device for hollow long shaft parts, comprising a frame (101), a control box (103) is arranged on the upper surface of the frame (101), symmetrically distributed guide rails (109) are arranged on the frame (101), and a slide table (116) is slidably arranged between the guide rails (109), characterized in that: A turning box (201) is arranged on the upper surface of the second slide (116); a rotating cylinder (202) is rotatably arranged on the inner wall of the turning box (201); a turning cylinder (203) is arranged on a side of the rotating cylinder (202) close to the vertical center of the frame (101); a plurality of adjustment racks (204) are slidably arranged on the outer side of the turning cylinder (203); a turning tool (205) is arranged on a side of the adjustment rack (204) away from the turning cylinder (203); an adjustment module is arranged on the turning cylinder (203); and the adjustment module is used to automatically adjust the cutting diameter of the turning tool (205).

2. The turning device for hollow long shaft parts according to claim 1, characterized in that: The adjustment module comprises a bidirectional screw rod 1 (206) rotatably arranged inside a turning cylinder (203); the outer side of the bidirectional screw rod 1 (206) is threadedly connected with a symmetrically distributed adjustment block (207); the outer sides of the adjustment blocks (207) are rotatably arranged with a plurality of connecting rods (208); the ends of the connecting rods (208) away from the adjustment blocks (207) are rotatably connected with adjacent adjustment frames (204); a motor 5 is arranged in the middle of the interior of the rotating cylinder (202); and the output shaft of the motor 5 is fixed to the bidirectional screw rod 1 (206) via a coupling.

3. The turning device for hollow long shaft parts according to claim 2, characterized in that: The outer arc surface fixing sleeve of the rotating cylinder (202) is provided with an outer gear ring 2 (209); the inner bottom end of the turning box (201) is provided with a U-shaped seat 2 (210); a gear 2 (211) is rotatably provided between the U-shaped seat 2 (210) and the turning box (201) via a rotating rod; the gear 2 (211) is meshingly connected with the outer gear ring 2 (209); the outer arc surface fixing sleeve of the rotating rod is provided with a worm gear; the inner bottom end of the turning box (201) is provided with symmetrically distributed support plates (212); a worm (213) is rotatably provided between the support plates (212); the worm (213) is meshingly connected with the worm gear; a motor 3 (214) is provided inside the turning box (201); the output shaft of the motor 3 (214) is fixed to the worm (213) via a coupling.

4. The turning device for hollow long shaft parts according to claim 3, characterized in that: A bracket (215) is arranged on the upper surface of the frame (101), an adjusting screw (216) is rotatably arranged inside the bracket (215), the adjusting screw (216) is threadedly connected to the turning box (201), a motor (217) is arranged on the outer side of the bracket (215), and an output shaft of the motor (217) and the adjusting screw (216) are fixed via a coupling.

5. The turning device for hollow long shaft parts according to claim 4, characterized in that: A four-claw chuck (104) is rotatably provided on one side of the control box (103) close to the vertical center of the frame (101); a slide table (110) is slidably provided between the guide rails (109); a sliding seat (111) is provided on the upper surface of the slide table (110); a sliding frame (112) is slidably provided on the upper side of the sliding seat (111); a symmetrically distributed adjustment seat (113) is slidably provided in a slide groove opened at the upper end of the sliding frame (112); a supporting wheel (114) is rotatably provided in the middle of the adjustment seat (113); a two-way screw rod (2) is rotatably provided inside the slide groove; a motor (2) (115) is provided on the outer side of the sliding frame (112); an output shaft of the motor (115) and the two-way screw rod (2) are fixed via a coupling; a symmetrically distributed hydraulic push rod is provided on the upper surface of the slide table (110); and the telescopic ends of the hydraulic push rod are connected and fixed to the sliding frame (112).

6. The turning device for hollow long shaft parts according to claim 5, characterized in that: The outer fixed sleeve of the four-jaw chuck (104) is provided with an outer gear ring (105), the inner bottom end of the control box (103) is provided with a U-shaped seat (106), the interior of the U-shaped seat (106) is provided with a gear (107) which is rotatable via a rotating shaft, the gear (107) is meshedly connected with the outer gear ring (105), the inner bottom end of the control box (103) is provided with a motor (108), and the output shaft of the motor (108) is fixed to the rotating shaft via a coupling.

7. The turning device for hollow long shaft parts according to claim 6, characterized in that: An integrated controller (301) is arranged on the front side of the control box (103); the hydraulic push rod, motor 1 (108), motor 2 (115), motor 3 (214), motor 4 (217), and motor 5 are all electrically connected to the integrated controller (301).

8. The turning device for hollow long shaft parts according to claim 1, characterized in that: A bottom frame (102) is provided on the lower side of the frame (101), and a rubber pad is bonded and fixed to the lower surface of the bottom frame (102).

9. The turning device for hollow long shaft parts according to claim 5, characterized in that: The outer arc surface of the support wheel (114) is bonded and fixed with a buffer rubber ring.

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