Mouth guide for a vertical pipe expander

Abstract

The utility model relates to the technical field of vertical pipe expander, concretely to a pipe orifice guiding device of vertical pipe expander, including device outer frame, the rear end of device outer frame is equipped with the guide block, the bottom end of guide block is equipped with stable bottom block, the both sides surface of guide block all are equipped with the guide groove, the inside bottom end surface of device outer frame is equipped with the locating block, the top end surface of locating block is in line array and is equipped with the locating hole, the inside of locating hole is close to the bottom end portion and is equipped with the locating rod, the inner wall of device outer frame is equipped with stable sliding slot, the inside of stable sliding slot is equipped with stable sliding rod, the top end of device outer frame is equipped with the protection outer frame, the inside of protection outer frame is equipped with the guide cylinder, the bottom end of guide cylinder is equipped with stable push block, the bottom end of stable push block is equipped with the flaring block, the both sides of bottom end of flaring block all are equipped with fixed sleeve. The utility model through device outer frame and fixed outer frame are convenient for the device to be more stable when carrying out flaring work, and it is convenient to clamp the workpiece, reduces the situation that the workpiece is skew when flaring.

Description

Technical Field

[0001] This utility model relates to the field of vertical tube expander technology, specifically a tube guide device for a vertical tube expander. Background Technology

[0002] Vertical tube expander machines are key industrial equipment used in heat exchanger manufacturing. They use hydraulic or mechanical force to drive the expansion rod, causing metal tubes (such as copper or stainless steel tubes) to undergo plastic deformation within the tube sheet. This automates the three processes of tube expansion, flaring, and flanging in a single operation, ensuring a tight seal and mechanical connection between the tube and the plate. They can efficiently process workpieces ranging in length from 200 mm to 3000 mm and are widely used in petrochemical, energy equipment, and automotive manufacturing industries to meet the demands of high-volume, high-precision production.

[0003] In the use of vertical tube expanders, the existing workpiece tube end guiding device mainly ensures the verticality of the workpiece through the door plate device. During the processing of the workpiece tube end, the workpiece is easily squeezed and shakes, which can cause the workpiece tube end to bend or tilt. In addition, when the expanding device moves downward during the workpiece tube end flaring process, it is easily affected by external influences and may deviate, thus affecting the contact between the expanding device and the workpiece tube end and affecting the subsequent processing effect.

[0004] To address this issue, we propose a tube guide device for a vertical tube expander. Utility Model Content

[0005] The purpose of this utility model is to provide a tube guide device for a vertical tube expander to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tube end guiding device for a vertical tube expander, comprising an outer frame, a stabilizing structure, the stabilizing structure comprising the outer frame, a guide block, a stabilizing bottom block, a guide groove, a positioning block, a positioning hole, a positioning rod, a stabilizing slide groove, a stabilizing slide rod, a protective outer frame, a guide cylinder, and a stabilizing push block; and a clamping structure, the clamping structure comprising a flaring block, a fixing sleeve, a fixing outer frame, a fixing groove, a rotating screw, a bevel gear, a driven screw, a driven gear, and a fixing retaining ring.

[0007] Preferably, a guide block is fixedly installed at the rear end of the outer frame of the device, a stabilizing block is snapped onto the bottom end of the guide block, the guide block is connected to the stabilizing block by bolts, guide grooves are provided on both sides of the guide block, and a positioning block is fixedly installed on the inner bottom surface of the outer frame of the device.

[0008] Preferably, the top surface of the positioning block has positioning holes arranged in a linear array, and a positioning rod is fixedly installed on the inner side of the positioning holes near the bottom. Stable grooves are provided on both sides of the inner wall of the outer frame of the device.

[0009] Preferably, a stabilizing slide rod is fixedly installed on the inner side of the stabilizing slide groove, a protective outer frame is fixedly installed on the top surface of the outer frame of the device, a guide cylinder is snapped onto the inner side of the protective outer frame, a stabilizing push block is fixedly installed at the bottom end of the guide cylinder, and the guide cylinder and the stabilizing push block are connected by a piston rod.

[0010] Preferably, the bottom end of the stabilizing push block is threadedly connected to a flared block, and a fixing sleeve is fixedly installed on both sides of the bottom end of the flared block, and a fixing frame is fixedly installed on the outer side of the bottom end of the fixing sleeve.

[0011] Preferably, the inner front and rear ends of the fixed outer frame are provided with fixing grooves, the inner side of the fixed sleeve is threaded with a rotating screw, and a bevel gear is fixedly installed on the outer side of the bottom end of the rotating screw.

[0012] Preferably, driven screws are mounted on both sides of the bottom end of the rotating screw in a pure rotational motion around the axis. A driven gear is fixedly mounted on the outer side of one end of the driven screw, and the bevel gear meshes with the driven gear. A retaining ring is threadedly connected to the outer side of the other end of the driven screw.

[0013] This utility model provides a tube end guide device for a vertical tube expander, which has the following beneficial effects: The stabilizing structure allows the flared workpiece to be placed in the positioning block located at the bottom of the inner side of the outer frame of the device. This allows the positioning rod, which is located inside the positioning hole of the flared workpiece, to enter the inner side of the flared workpiece. When the guide cylinder drives the flared block to slide downward through the stabilizing push block, the flared block can move downward through the guide grooves provided on both sides of the guide block. This makes the sliding of the flared block more stable and reduces the possibility of the flared block shaking during movement, which could lead to a collision between the flared block and the flared workpiece.

[0014] The clamping structure enables the flaring block to move downwards when the stabilizing push block moves the flaring block downwards. The fixed sleeve at the bottom of the flaring block presses against the rotating screws on both sides of the top of the fixed outer frame, causing the rotating screws to rotate. At the same time, the bevel gear at the other end of the rotating screw also rotates, driving the driven gear to rotate. This causes the fixed block to rotate on the driven screw, and simultaneously moves towards the middle of the fixed outer frame, thereby clamping and fixing the flared workpiece. This reduces the possibility of workpiece skewing during the flaring process. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional front view of the structure of this utility model; Figure 2 This is a three-dimensional rear view of the structure of this utility model; Figure 3 This utility model Figure 2 A schematic cross-sectional view of the structure; Figure 4 This is a partial structural schematic diagram of the present invention; Figure 5 This is a partial structural cross-sectional view of the present invention.

[0017] In the diagram: 1. Outer frame of the device; 2. Guide block; 3. Stabilizing base block; 4. Guide groove; 5. Positioning block; 6. Positioning hole; 7. Positioning rod; 8. Stabilizing slide groove; 9. Stabilizing slide rod; 10. Protective outer frame; 11. Guide cylinder; 12. Stabilizing push block; 13. Flared block; 14. Fixing sleeve; 15. Fixing outer frame; 16. Fixing groove; 17. Rotating screw; 18. Bevel gear; 19. Driven screw; 20. Driven gear; 21. Fixing retaining ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This embodiment proposes a tube guide device for a vertical tube expander.

[0020] Example

[0021] like Figures 1 to 3As shown, this embodiment proposes a tube guide device for a vertical tube expander, including an outer frame 1, a stabilizing structure comprising the outer frame 1, a guide block 2, a stabilizing bottom block 3, a guide groove 4, a positioning block 5, a positioning hole 6, a positioning rod 7, a stabilizing slide groove 8, a stabilizing slide rod 9, a protective outer frame 10, a guide cylinder 11, and a stabilizing push block 12; and a clamping structure comprising a flaring block 13, a fixing sleeve 14, a fixing outer frame 15, a fixing groove 16, a rotating screw 17, a bevel gear 18, a driven screw 19, a driven gear 20, and a fixing retaining ring 21. A guide block 2 is fixedly installed at the rear end of the outer frame 1, and a stabilizing bottom block 3 is snapped onto the bottom end of the guide block 2. The guide block 2... The guide block 2 is connected to the stabilizing base block 3 by bolts. Guide grooves 4 are provided on both sides of the guide block 2. A positioning block 5 is fixedly installed on the bottom inner side of the outer frame 1. Positioning holes 6 are provided in a straight line array on the top surface of the positioning block 5. A positioning rod 7 is fixedly installed on the inner side of the positioning hole 6 near the bottom. Stabilizing grooves 8 are provided on both sides of the inner wall of the outer frame 1. A stabilizing rod 9 is fixedly installed on the inner side of the stabilizing groove 8. A protective outer frame 10 is fixedly installed on the top surface of the outer frame 1. A guide cylinder 11 is snapped onto the inner side of the protective outer frame 10. A stabilizing push block 12 is fixedly installed at the bottom of the guide cylinder 11. The guide cylinder 11 and the stabilizing push block 12 are connected by a piston rod. The positioning block 5 can be easily positioned by the positioning rod 7 inside the positioning hole 6. The outer frame 1 of the device can be easily slid up and down by the stabilizing slide rod 9 inside the stabilizing slide groove 8. The two sides of the flaring block 13 are provided with stabilizing side blocks. The rear end of the flaring block 13 is provided with a connecting block. When the flaring block 13 slides, the connecting block can slide in the guide grooves 4 opened on both sides of the guide block 2, which makes the flaring block 13 more stable when it moves. The protective outer frame 10 at the top of the outer frame 1 of the device can support and stabilize the guide cylinder 11, which makes the guide cylinder 11 stable when it works.

[0022] The guide cylinder 11 used in this application is a product that can be purchased directly from the market. Its principle and connection method are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0023] In the above embodiment, the workpiece can be placed inside the positioning hole 6 at the top of the positioning block 5, so that the positioning rod 7 enters the inside of the workpiece for simple positioning. Then, the guide cylinder 11 can drive the stabilizing push block 12 to slide downward through the piston rod. At this time, the flaring block 13 will also slide downward on the stabilizing slide rod 9 inside the stabilizing slide groove 8 through the stabilizing side block. At the same time, the connecting block at the rear end of the flaring block 13 will also slide downward in the guide groove 4 on both sides of the guide block 2, so that the flaring block 13 can be more stable when performing the flaring operation and reduce the collision at the workpiece interface.

[0024] Example

[0025] like Figure 4 and Figure 5 As shown, based on the same concept as the above embodiment, this embodiment also proposes: the bottom end of the stabilizing push block 12 is threadedly connected to a flared block 13, and both sides of the bottom end of the flared block 13 are fixedly installed with a fixing sleeve 14. The bottom outer side of the fixing sleeve 14 is fixedly installed with a fixing frame 15. The front and rear ends of the inner side of the fixing frame 15 are provided with fixing grooves 16. The inner side of the fixing sleeve 14 is threadedly connected to a rotating screw 17. The bottom outer side of the rotating screw 17 is fixedly installed with a bevel gear 18. Both sides of the bottom end of the rotating screw 17 are installed with driven screws 19 in a pure rotational motion around the axis. One end of the driven screw 19 is fixedly installed with a driven gear 20. The bevel gear 18 and the driven gear 20 are meshed and connected. The other end of the driven screw 19 is threadedly connected with a fixing retaining ring 21. The inner side of the fixed sleeve 14 is provided with a spiral inclined track, the inner side of the inclined track is provided with ball bearings, and the top of the inner side of the fixed sleeve 14 is provided with a return spring. The fixed outer frame 15 can be used to facilitate the retraction of the fixed retaining ring 21 through the fixed groove 16. The rotating screw 17 can rotate to drive the driven gear 20 to rotate through the bevel gear 18, thereby facilitating the rotation of the driven screw 19 and the movement of the fixed retaining ring 21.

[0026] In the above embodiment, when the fixed sleeve 14 is pressed down, the inclined surface will squeeze the ball, forcing it to lock into the rotating screw 17, thereby converting the downward linear motion into the clockwise rotation of the rotating screw 17. When the rotating screw 17 rotates, the bevel gear 18 will also rotate, which will drive the driven gear 20 to rotate. At this time, the fixed retaining ring 21 will also clamp the workpiece by rotating the driven screw 19. When the fixed sleeve 14 moves upward, the ball will disengage from the rotating screw 17, and the return spring will rebound, causing the spring force to drive the rotating screw 17 to rotate counterclockwise, returning it to the initial position. At this time, the fixed retaining ring 21 will also slide in the opposite direction, allowing the fixed retaining ring 21 to enter the inner side of the fixed groove 16. At the same time, the fixed retaining ring 21 will also leave the workpiece, which is convenient for the device to operate and reduces the workpiece shaking, which may cause the workpiece flare to be skewed.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tube guide device for a vertical tube expander, comprising a device outer frame (1), characterized in that: The stabilizing structure includes an outer frame (1), a guide block (2), a stabilizing bottom block (3), a guide groove (4), a positioning block (5), a positioning hole (6), a positioning rod (7), a stabilizing slide groove (8), a stabilizing slide rod (9), a protective outer frame (10), a guide cylinder (11), and a stabilizing push block (12). The clamping structure includes a flared block (13), a fixed sleeve (14), a fixed outer frame (15), a fixed groove (16), a rotating screw (17), a bevel gear (18), a driven screw (19), a driven gear (20), and a fixed retaining ring (21).

2. The tube end guide device of a vertical tube expander according to claim 1, characterized in that: A guide block (2) is fixedly installed at the rear end of the outer frame (1) of the device. A stable base block (3) is snapped onto the bottom end of the guide block (2). The guide block (2) is connected to the stable base block (3) by bolts. Guide grooves (4) are provided on both sides of the guide block (2). A positioning block (5) is fixedly installed on the inner bottom end surface of the outer frame (1) of the device.

3. The tube end guide device of a vertical tube expander according to claim 2, characterized in that: The top surface of the positioning block (5) is provided with positioning holes (6) in a straight array. A positioning rod (7) is fixedly installed on the inner side of the positioning hole (6) near the bottom. Stable grooves (8) are provided on both sides of the inner wall of the outer frame (1) of the device.

4. The tube end guide device of a vertical tube expander according to claim 3, characterized in that: A stabilizing slide rod (9) is fixedly installed on the inner side of the stabilizing slide groove (8). A protective outer frame (10) is fixedly installed on the top surface of the outer frame (1) of the device. A guide cylinder (11) is snapped onto the inner side of the protective outer frame (10). A stabilizing push block (12) is fixedly installed at the bottom end of the guide cylinder (11). The guide cylinder (11) and the stabilizing push block (12) are connected by a piston rod.

5. The tube end guide device of a vertical tube expander according to claim 4, characterized in that: The bottom end of the stabilizing push block (12) is threadedly connected to a flared block (13), and a fixing sleeve (14) is fixedly installed on both sides of the bottom end of the flared block (13). A fixing frame (15) is fixedly installed on the outer side of the bottom end of the fixing sleeve (14).

6. The tube end guide device of a vertical tube expander according to claim 5, characterized in that: The inner front and rear ends of the fixed outer frame (15) are provided with fixed grooves (16), the inner side of the fixed sleeve (14) is threaded with a rotating screw (17), and a bevel gear (18) is fixedly installed on the outer side of the bottom end of the rotating screw (17).

7. The tube end guide device of a vertical tube expander according to claim 6, characterized in that: Both sides of the bottom end of the rotating screw (17) are equipped with driven screws (19) in pure rotation around the axis. A driven gear (20) is fixedly installed on the outer side of one end of the driven screw (19). The bevel gear (18) meshes with the driven gear (20). A retaining ring (21) is threadedly connected to the outer side of the other end of the driven screw (19).

Images