Machining device for front end of main pipe of metal exhaust pipe

Abstract

The utility model discloses a machining device for the front end of a main pipe of a metal exhaust pipe. The machining device comprises a first multi-axis moving mechanism, a diameter expanding mechanism and an edge pressing mechanism. The expanding mechanism is used for expanding the caliber of one end of the main pipe; the edge pressing mechanism is used for conducting diameter shrinkage extrusion on the side wall, close to the other end, of the main pipe. A plurality of linearly distributed clamping jaws I are mounted on the multi-axis moving mechanism I, act progressively and are used for enabling a main pipe to enter the diameter expanding mechanism and the edge pressing mechanism from the outside in sequence and outputting the main pipe, and the diameter expanding mechanism and the edge pressing mechanism are matched with each other to realize diameter expanding and edge pressing operation in the equipment; and in addition, the multiple first clamping jaws are driven by the first multi-axis moving mechanism to move in a stepping mode, position change of all materials can be achieved through one-time movement, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of exhaust pipe production equipment, in particular to a front end processing device for a metal exhaust pipe main pipe. Background Art

[0002] Gas water heaters use liquefied petroleum gas or natural gas as fuel. The heat generated by combustion is transferred to the water through a heat exchanger to heat it up. The gases generated during combustion need to be discharged to the outside world. Therefore, each combustion water heater will have an exhaust pipe, which usually has a straight section and a curved section. Usually, the exhaust pipe is produced in sections. Because if an integrated molding method is adopted, in order to accommodate the long metal pipe while keeping the steps unchanged, each placement position needs to be made very long, and the processing equipment needs to be made very large. Therefore, basically, segmented production is adopted, that is, the main pipe and the short pipe are produced separately. However, the current production process still requires a lot of manual assistance, and there is no complete automated assembly line production. Materials need to be continuously transferred and processed, which results in long production time and low efficiency.

[0003] In order to solve the above problems, the company has developed a full-process exhaust pipe production line to achieve automated application. Figure 1 As shown, the specific steps include main pipe front section processing 1, main pipe punching 2, main pipe end cover installation 3, short pipe corrugation 4, main pipe and short pipe combination and bending 5; this application protects the front section processing structure of the main pipe. Utility Model Content

[0004] The purpose of the utility model is to provide a metal exhaust pipe main front end processing device to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A metal exhaust pipe main front end processing device includes a multi-axis moving mechanism, a diameter expansion mechanism and a side pressing mechanism;

[0007] The diameter expansion mechanism is used to expand the diameter of one end of the main pipe;

[0008] The edge pressing mechanism is used to reduce the diameter of the side wall of the main pipe near the other end;

[0009] The multi-axis moving mechanism is equipped with a plurality of linearly distributed clamping jaws, which are progressively moved to sequentially move the main pipe from the outside into the diameter expansion mechanism, the edge pressing mechanism and the output.

[0010] A further technical solution is that the expansion mechanism includes a base one, a translation component one is installed at one end of the base one, an expansion component is installed on the translation component one, the expansion component includes at least one expansion head entering into the main pipe, and a fixed component one is installed at the other end of the base.

[0011] According to a further technical solution, a driver 1 is installed in the diameter expansion assembly, and the driver 1 is connected to the diameter expansion head to drive the expansion head to rotate.

[0012] A further technical solution is that the expansion assembly includes a mounting seat 1, one side of the mounting seat 1 is rotatably connected to two expansion heads, the two expansion heads are respectively passed through a rotating shaft 1 and extend to the other side of the mounting seat 1, the rotating shaft 1 is fixed with a driven gear 1, and a transmission gear 1 is meshed between the two driven gears 1, the transmission gear 1 is connected to a drive motor 1, and the drive motor 1 is arranged on the mounting seat 1.

[0013] A further technical solution is that the fixing component includes a fixing seat, an air claw is horizontally slidably installed on the fixing seat, the air claw is connected to a cylinder, a clamping block is installed on the actuating end of the air claw, and an arc-shaped clamping portion is formed on the opposite sides of the two clamping blocks. A support plate is provided below the clamping block, and an arc-shaped groove is provided on the support plate.

[0014] According to a further technical solution, the edge pressing mechanism includes a second base, one end of which is equipped with a supporting assembly, and the other end of which is equipped with a second translation assembly, and the second translation assembly is equipped with an edge pressing assembly;

[0015] The edge pressing assembly includes a second driver, an output end of which is provided with a forming cylinder, an outer circumference of which is provided with a groove, and a rolling wheel is used in conjunction with the groove, and the rolling wheel is rotatably connected to a movable plate, and the movable plate is connected to a vertically mounted cylinder 2;

[0016] A plurality of buffer wheels for supporting are provided below the forming cylinder. The buffer wheels are installed on a bracket 1. The bracket 1 is provided with a plurality of strip holes 1. The central axis of the buffer wheel passes through the strip holes 1. A reset piece is provided at the central axis.

[0017] According to a further technical solution, the clamping jaw 1 includes an air gripper 2, an actuating end of the air gripper 2 is provided with an arc-shaped clamping arm, and the arc-shaped clamping arm is provided with a plurality of rollers 1 protruding from the inner side.

[0018] According to a further technical solution, two independently liftable placement seats 1 are provided on one side of the diameter expansion mechanism, and two fixed placement seats 2 are provided on one side of the edge pressing mechanism.

[0019] Beneficial effects of the utility model:

[0020] The utility model realizes the operations of diameter expansion and edge pressing in the equipment through the mutual cooperation of the diameter expansion mechanism and the edge pressing mechanism, which can provide a basis for subsequent automated production. In addition, several clamps can realize step-by-step movement under the drive of the multi-axis moving mechanism, and the position of all materials can be changed through one movement, thereby effectively improving production efficiency.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 : Distribution map of automated production equipment.

[0023] Figure 2 : Overall structure diagram of the utility model.

[0024] Figure 3 : Distribution diagram of the diameter expansion mechanism and edge pressing mechanism of the utility model.

[0025] Figure 4 : Diameter expansion mechanism structure diagram of the present utility model.

[0026] Figure 5 : Structural diagram of the edge pressing mechanism of the present utility model.

[0027] Figure 6 : A structural diagram of a multi-axis moving mechanism and a clamping jaw of the present invention.

[0028] Figure numbers: 11-multi-axis moving mechanism 1, 12-expanding mechanism, 121-base 1, 122-translation component 1, 123-expanding component, 1231-mounting seat 1, 1232-rotating shaft 1, 1233-driven gear 1, 1234-transmission gear 1, 1235-driving motor 1, 124-expanding head, 125-fixing component 1, 1251-fixing seat 1, 1252-air claw 1, 1253-clamping block, 1254-clamping part, 1255-supporting plate, 1236-arc slot, 13-edge pressing mechanism, 131-bottom Seat 2, 132-supporting assembly, 133-translation assembly 2, 134-edge pressing assembly, 1341-driver 2, 1342-forming cylinder, 1343-groove, 1344-rolling wheel, 1345-movable plate, 1346-cylinder 2, 1347-vertical plate, 1351-buffer wheel, 1352-bracket 1, 1353-hole 1, 1354-central axis, 1355-reset part, 14-grip 1, 141-air gripper 2, 142-arc-shaped clamping arm, 143-roller 1, 151-placement seat 1, 152-fixed placement seat 2. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] Please refer to Figure 1-6 ;

[0031] The processing mechanism described in the present invention is intended to perform front-end processing on the main pipe of a metal exhaust pipe. The front-end processing steps of the main pipe mainly include caliber expansion and outer side pressing, and these two processes are respectively performed by the diameter expansion mechanism 12 and the edge pressing mechanism 13. A plurality of linearly distributed clamping jaws 14 are installed on the multi-axis moving mechanism 11. For example, the diameter expansion mechanism 12 and the edge pressing mechanism 13 are distributed with two processing positions, then there are four clamping jaws 14 corresponding to the processing positions, and there are two additional clamping jaws 14 located on the outside, that is, there are a total of six clamping jaws 14, and the multi-axis moving mechanism 11 has at least X-axis and Z-axis movement directions, so that the clamping jaws 14 can realize progressive action for loading and unloading and material transfer;

[0032] Assuming that there are two main pipes for processing in the diameter expansion mechanism 12, it is mainly to form enough space for the subsequent combination with the short pipe. Therefore, it is only necessary to expand the diameter of one end of the main pipe, omitting unnecessary work steps. There are two main pipes for processing in the edge pressing mechanism 13, which mainly changes the overall stress structure of the main pipe, splits it into two and makes it less likely to bend. When the two ends are subjected to external force, the external force will eventually be concentrated at the flattened position, and the flattened position is the position with the highest strength of the entire main pipe, which can play a role in strengthening the structure; and the edge pressing formed on the outside of the main pipe also has a decorative effect, so that the whole will not be too monotonous; when it is necessary When loading and unloading, the multi-axis moving mechanism 11 drives several clamps 14 to descend, and the two clamps 14 located on the outside grab two main pipes to be processed, and the remaining clamps grab the main pipes in the diameter expansion mechanism 12 and the edge pressing mechanism 13 respectively. Then, the multi-axis moving mechanism 11 is actuated to cause several clamps 14 to be dislocated, and the main pipe to be processed enters the diameter expansion mechanism 12, the main pipe in the diameter expansion mechanism 12 enters the edge pressing mechanism 13, and the main pipe in the edge pressing mechanism 13 enters the fixed placement seat 2 152 for unloading. The step-by-step movement method can realize the position change of all materials through one movement, effectively improving production efficiency.

[0033] It should be noted that, since the main pipe has a certain length, in order to be able to stably transfer the material, the clamping jaws 14 are distributed front and back in groups of two.

[0034] One embodiment of the expansion mechanism 12 of the present invention specifically includes a base 121, a translation assembly 122 is mounted on one end of the base 121, an expansion assembly 123 is mounted on the translation assembly 122, and the expansion assembly 123 includes at least one expansion head 124 that enters the main pipe. A fixed assembly 125 is mounted on the other end of the base. In this embodiment, the number of workstations is not limited. If there are two workstations, then there are two expansion heads 124.

[0035] During loading, the clamping jaw 14 maintains a clamping state and places the main pipe on the work station. Then, the fixing component 125 and the expanding component 123 approach the two ends of the main pipe respectively. Finally, the fixing component 125 fixes one end of the main pipe, and the expanding head 124 enters the main pipe from the other end. The expanding head 124 in this embodiment has three implementation methods.

[0036] In the first embodiment, the outer diameter of the enlarging head 124 is equal to the inner diameter of the main pipe, and the enlarging head 124 is driven by the first translation assembly 122 to enter from one end of the main pipe by hard plugging and squeezing, thereby enlarging its diameter;

[0037] In the second embodiment, the enlarging head 124 is a lotus head. In the initial contracted state, that is, the outer diameter is smaller than the inner diameter of the main pipe, which allows easy entry into the interior. Then, the conical head is contracted to allow it to enter the lotus head. The lotus head will expand the outer diameter, thereby expanding the main pipe to achieve the purpose of expanding the diameter. After the conical head is pushed out, the lotus head will contract and return to its original position, with the outer diameter becoming smaller, making it easier to enter and exit.

[0038] Implementation method three, refer to Figure 3 The end of the expanding head 124 has a conical surface, and a driver 1 is installed in the expanding component 123. The driver 1 drives the expanding head 124 to rotate and gradually enter the interior of the main pipe, gradually expanding the diameter. Through such slow expansion, the metal can be slowly stretched to avoid cracks.

[0039] Based on the further expansion of implementation method three, refer to Figure 4 The expansion component 123 includes a mounting seat 1231, and the mounting seat 1231 is located on the translation component 122. One side of the mounting seat 1231 is rotatably connected to the two expansion heads 124, wherein the driver 1 includes a rotating shaft 1232 respectively provided in the two expansion heads 124 and extending to the other side of the mounting seat 1231. The rotating shaft 1232 is fixed with a driven gear 1233, and a transmission gear 1234 is engaged between the two driven gears 1233. The transmission gear 1234 is connected to the driving motor 1235, and the driving motor 1235 is provided on the mounting seat 1231. The transmission is transmitted by gear meshing, which can reduce the torque loss. At the same time, the two expansion heads 124 can be driven to rotate by one motor, reducing the use of parts.

[0040] One embodiment of the fixing assembly 125 of the present invention specifically includes a fixing seat 1251, on which an air gripper 1252 is horizontally slidably installed, the air gripper 1252 is connected to a cylinder 1 (not shown), and a clamping block 1253 is installed at the action end of the air gripper 1252 to prevent the edge of the main pipe from being deformed when clamping it. The two clamping blocks 1253 form an arc-shaped clamping portion 1254 on the opposite sides, which is adapted to the edge of the main pipe. A supporting plate 1255 is provided below the clamping block 1253, and an arc-shaped groove 1236 is provided on the supporting plate 1255; first, the main pipe is clamped and placed in the processing position, at this time the air gripper 1252 is not pushed out, and the main pipe can be placed in the arc-shaped groove 1236, and then the clamping claw is pushed out by the cylinder 1, and then the clamping claw contracts to clamp the edge of the main pipe, and combined with the supporting plate 1255 to form two fixed points, so that the main pipe maintains its direction.

[0041] One embodiment of the edge pressing mechanism 13 of the present invention is as follows: Figure 5 Specifically, it includes a second base 131, a supporting assembly 132 is installed at one end of the second base 131, and a second translation assembly 133 is installed at the other end. The second translation assembly 133 is installed on the edge pressing assembly 134; in this embodiment, the supporting assembly 132 can refer to the method of the first fixing assembly 125, but the method of use is different from that of the first fixing assembly 125, which will be explained below;

[0042] The edge pressing assembly 134 includes a second driver 1341. In this embodiment, the second driver 1341 can refer to the implementation of the first driver. The output end of the second driver 1341 is provided with a forming cylinder 1342. The outer periphery of the forming cylinder 1342 is provided with a groove 1343. The groove 1343 is used in conjunction with a rolling wheel 1344. The rolling wheel 1344 is rotatably connected to a movable plate 1345. The movable plate 1345 is connected to a vertically installed second cylinder 1346. Of course, the second mounting seat can extend upward to form a vertical plate 1347. The movable plate 1345 is slidably connected to the vertical plate 1347, while the position of the second cylinder 1346 is fixed.

[0043] First, the clamping state is maintained by the clamping claw 14 and placed on the edge pressing mechanism 13, one end of which is placed on the supporting component 132 but not fixed. At this time, there is a gap between the forming cylinder 1342 and the buffer wheel 1351. Driven by the translation component 2 133, the forming cylinder 1342 is pushed into the main pipe, and then the clamping claw releases the main pipe. At this time, the outer wall of the main pipe is located between the two buffer wheels 1351. The buffer wheel 1351 is installed on the bracket 1 1352, and the bracket 1 1352 is located on the mounting seat 2; the cylinder 2 1346 pushes the movable plate 1345 downward to make the rolling wheel 1344 conflict with the outer wall of the main pipe, and the corresponding forming The groove 1343 of the cylinder 1342 causes the rolling wheel 1344 to form a clamping state with the forming cylinder 1342. Then, the forming cylinder 1342 rotates under the drive of the second driver 1341, and the friction force causes the main pipe to rotate synchronously, thereby forming a pressure edge on the outside of the main pipe. During this process, the main pipe will be more or less deformed. The central axis 1354 of the cache wheel passes through the first bar hole 1353. Under the action of the first bar hole 1353 and the reset member 1355, the gap range is expanded or reduced, thereby adapting to the shape change of the main pipe. The reset member 1355 can be a spring. The specific setting method depends on the actual situation. Please refer to the accompanying drawings for details.

[0044] After the groove 1343 is formed, the forming tube 1342 cannot be directly withdrawn, so the supporting component 132 extends to clamp one end of the main tube, and then the second translation component 133 drives the whole body backward. After the main tube is slightly deformed, the forming tube 1342 can be withdrawn from it.

[0045] One embodiment of the present invention regarding the clamping jaw 14, referring to Figure 6 Specifically, it includes an air gripper 141. The action end of the air gripper 141 is provided with an arc-shaped clamping arm 142. The arc-shaped clamping arm 142 is provided with a plurality of rollers 143 protruding from the inner side. In this embodiment, the rollers 143 are respectively provided at the end and corner of the clamping arm. The two arc-shaped clamping arms 142 are combined to form a groove slightly larger than the main pipe. When the main pipe needs to be clamped, the roller 143 at the end rotates in sync with the outer wall of the main pipe and pushes the main pipe into the clamping position, which can avoid hard contact and dents on the surface of the main pipe. The other roller 143 located above is combined with the two rollers 143 below to achieve the effect of clamping and fixing.

[0046] Based on another embodiment of the structure in which a plurality of rollers 143 are provided on the arc-shaped clamping arm 142, when position switching is performed, the multi-axis moving mechanism 1 does not need to drive the clamping jaws to move up and down multiple times. For example, when the main pipe needs to be rotated during edge pressing, the clamping jaws keep clamping the main pipe. At this time, the plurality of rollers 1 are in conflict with the main pipe. When the main pipe rotates, the roller 1 will also rotate without hindering the processing of the main pipe. After the processing is completed, the position is switched. In this process, the multi-axis moving mechanism 1 will only move up and down when the position is switched. The traditional method requires up and down movement once after the loading is completed, and again after the processing is completed. Therefore, the use of the structure described in the present invention can reduce the movement frequency of the multi-axis moving mechanism 1, shorten the movement time, and improve the operating efficiency.

[0047] In the embodiment of the present invention, two independently liftable placement seats 151 are provided on one side of the diameter expansion mechanism 12. The lifting function is mainly to adapt to the loading position. After the loading is completed, the placement seat 151 is lifted so that the clamping claw 14 can obtain the main pipe. Two fixed placement seats 152 are provided on one side of the edge pressing mechanism 13. The main pipe that has completed the preliminary processing enters the fixed placement seat, and so on to enter the next process.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0049] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims

1. A metal exhaust pipe main front end processing device, characterized by: It comprises a multi-axis moving mechanism (11), a diameter expansion mechanism (12) and an edge pressing mechanism (13); The diameter expansion mechanism (12) is used to expand the diameter of one end of the main pipe; The edge pressing mechanism (13) is used to reduce the diameter of the side wall of the main pipe near the other end; The multi-axis moving mechanism (11) is provided with a plurality of linearly distributed clamping jaws (14), which are progressively moved and used to sequentially move the main pipe from the outside into the diameter expansion mechanism (12), the edge pressing mechanism (13) and the output.

2. The metal exhaust pipe main front end processing device according to claim 1, characterized in that: The diameter expansion mechanism (12) comprises a base (121), one end of which is mounted a translation assembly (122), an expansion assembly (123) being mounted on the translation assembly (122), the expansion assembly (123) comprising at least one expansion head (124) entering the main pipe, and the other end of the base being mounted a fixing assembly (125).

3. The metal exhaust pipe main front end processing device according to claim 2, characterized in that: A driver 1 is installed in the diameter expansion component (123), and the driver 1 is connected to the diameter expansion head (124) to drive the expansion head (124) to rotate.

4. The metal exhaust pipe main front end processing device according to claim 3, characterized in that: The expansion assembly (123) includes a mounting seat (1231), one side of which is rotatably connected to two expansion heads (124), a rotating shaft (1232) passing through each of the two expansion heads (124) and extending to the other side of the mounting seat (1231), a driven gear (1233) fixed to the rotating shaft (1232), a transmission gear (1234) meshing between the two driven gears (1233), the transmission gear (1234) being connected to a drive motor (1235), and the drive motor (1235) being arranged on the mounting seat (1231).

5. The metal exhaust pipe main front end processing device according to claim 2, characterized in that: The fixing assembly (125) includes a fixing seat (1251), an air gripper (1252) is horizontally slidably mounted on the fixing seat (1251), the air gripper (1252) is connected to the air cylinder, a clamping block (1253) is mounted on the action end of the air gripper (1252), and an arc-shaped clamping portion (1254) is formed on opposite sides of the two clamping blocks (1253), and a supporting plate (1255) is provided below the clamping block (1253), and an arc-shaped groove (1236) is provided on the supporting plate (1255).

6. The metal exhaust pipe main front end processing device according to claim 1, characterized in that: The edge pressing mechanism (13) includes a second base (131), one end of the second base (131) is installed with a supporting assembly (132), the other end of the second base (131) is installed with a second translation assembly (133), and the second translation assembly (133) is installed with an edge pressing assembly (134); The edge pressing assembly (134) includes a second driver (1341), the output end of the second driver (1341) is provided with a forming cylinder (1342), the outer periphery of the forming cylinder (1342) is provided with a groove (1343), the groove (1343) is used in conjunction with a rolling wheel (1344), the rolling wheel (1344) is rotatably connected to a movable plate (1345), and the movable plate (1345) is connected to a vertically installed cylinder 2 (1346); A plurality of buffer wheels (1351) for supporting are provided below the forming cylinder (1342). The buffer wheels (1351) are mounted on a bracket (1352). The bracket (1352) is provided with a plurality of strip holes (1353). The central axis (1354) of the buffer wheel (1351) passes through the strip holes (1353). A reset member (1355) is provided on the central axis (1354).

7. The metal exhaust pipe main front end processing device according to claim 1, characterized in that: The clamping jaw 1 (14) includes an air clamp 2 (141), the action end of the air clamp 2 (141) is provided with an arc-shaped clamping arm (142), and the arc-shaped clamping arm (142) is provided with a plurality of rollers 1 (143) protruding from the inner side.

8. The metal exhaust pipe main front end processing device according to claim 1, characterized in that: Two independently liftable placement seats (151) are provided on one side of the diameter expansion mechanism (12), and two fixed placement seats (152) are provided on one side of the edge pressing mechanism (13).

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