Die structure capable of improving parallel accuracy

Abstract

The utility model relates to a die structure capable of improving parallel accuracy. The technical problem that stress is not uniform due to the fact that parallel accuracy is affected in the prior art is solved. Comprising two oppositely-arranged frame body sets, a plurality of upper roller frames are arranged between the frame body sets, a plurality of lower roller frames are arranged below the upper roller frames, an upper roller frame translation space is formed between the upper roller frames, a lower roller frame translation space corresponding to the upper roller frame translation space is formed between the lower roller frames, and first side roller seats are arranged at the two ends of the upper roller frame translation space respectively. Second side roller seats are arranged at the two ends of the lower roller frame translation space respectively, a lower roller seat is arranged in the middle of the lower roller frame translation space, openings of the first side roller seats face the lower roller frame translation space, and openings of the second side roller seats face the middle of the lower roller frame translation space. The device has the advantages that a frame type parallel moving structure is adopted, the parallelism is enhanced, the parallel accuracy can be well guaranteed, even and stable stress can be guaranteed, meanwhile, the cost can be saved, and maintenance is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe forming, and in particular relates to a mold structure for improving parallel accuracy. Background Art

[0002] Steel pipes are usually formed by curling strip steel. When steel pipes are produced by continuous roll forming, the forming process can be roughly divided into the strip edge forming stage, the center forming stage and the diameter reduction stage. The existing forming device generally includes an upper component, a lower component and a forming core. During operation, it is driven on the original shaft, which will affect the parallel accuracy, resulting in uneven force and affecting normal use. Summary of the invention

[0003] The utility model aims to provide a mold structure with improved parallel accuracy in view of the above problems.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a mold structure for improving parallel accuracy, comprising two relatively arranged frame groups, a plurality of upper roller frames are arranged between the frame groups, a plurality of lower roller frames are arranged below the upper roller frames, an upper roller frame translation space is provided between the upper roller frames, a lower roller frame translation space corresponding to the upper roller frame translation space is provided between the lower roller frames, first side roller seats are respectively provided at both ends of the upper roller frame translation space, second side roller seats are respectively provided at both ends of the lower roller frame translation space, a lower roller seat is provided in the middle of the lower roller frame translation space, an opening of the first side roller seat is arranged toward the direction of the lower roller frame translation space, and an opening of the second side roller seat is arranged toward the middle of the lower roller frame translation space. The first side roller seat moves in the translation space of the upper roller frame, and the upper roller frame plays a limiting role to prevent the first side roller seat from shaking when moving. The second side roller seat and the lower roller seat both move in the translation space of the lower roller frame, and the lower roller frame plays a limiting role to prevent the second side roller seat and the lower roller seat from shaking when moving, thereby improving the overall stability.

[0005] In the above-mentioned mold structure for improving parallel accuracy, the frame group has two frames, the number of the upper roller frame and the number of the lower roller frame are both two, the upper roller frame is located above the lower roller frame, the two ends of the upper roller frame and the lower roller frame on the same side are respectively connected to the frames on the same side of the two frame groups, and the upper roller frame and the frame group and the lower roller frame and the frame group are both rectangular structures. The use of a rectangular design structure can improve the balance strength.

[0006] In the above-mentioned mold structure for improving parallel accuracy, an upper bearing seat is provided at the upper end of the frame group, and the upper bearing seat is arranged between the upper ends of the two frames. A lower bearing seat is provided at the lower end of the frame group, and the lower bearing seat is arranged between the lower ends of the two frames. An upper driving motor is connected to one of the upper bearing seats, and a lower driving motor is connected to one of the lower bearing seats.

[0007] In the above-mentioned mold structure for improving parallel accuracy, two upper connecting rods are provided between the two upper bearing seats, the upper connecting rods are respectively provided at the two ends of the upper bearing seats, and the upper connecting rods are respectively provided in correspondence with the upper roller frame, and two lower connecting rods are provided between the two lower bearing seats, the lower connecting rods are respectively provided at the two ends of the lower bearing seats, and the lower connecting rods are respectively provided in correspondence with the lower roller frame. The upper connecting rod is used to connect the two upper bearing seats, and when one of the upper bearing seats moves, the other upper bearing seat moves with it, and the lower connecting rod is used to connect the two lower bearing seats, and when one of the lower bearing seats moves, the other lower bearing seat moves with it.

[0008] In the above-mentioned mold structure for improving parallel accuracy, the first side roller seat is provided with a first side roller groove, and a first side roller shaft is provided in one of the first side roller grooves, the second side roller seat is provided with a second side roller groove, and a second side roller shaft is provided in one of the second side roller grooves, the lower roller seat is provided with a lower roller groove, and a lower roller shaft is provided in the lower roller groove.

[0009] In the above-mentioned mold structure for improving parallel accuracy, a plurality of axially extending first screw rods are provided on the side of the upper end of the first side roller seat away from the other first side roller seat, and a first bearing seat located in the frame group is provided on the end of the first screw rod away from the first side roller seat, and a first driving motor is connected to the first bearing seat. The first driving motor moves the first screw rod through the first bearing seat, and the first screw rod moves the first side roller seat at the same time.

[0010] In the above-mentioned mold structure for improving parallel accuracy, the second side roller seat is provided with a plurality of axially extending second screw rods at one end away from the other second side roller seat, and the second screw rod is provided with a second bearing seat located in the frame group at one end away from the second side roller seat, and the second bearing seat is connected to a second driving motor. The second driving motor moves the second screw rod through the second bearing seat, and the second screw rod moves the second side roller seat.

[0011] In the above-mentioned mold structure for improving parallel accuracy, an upper driving rod arranged along the direction of the first bearing seat is provided in the middle of the upper bearing seat, and the lower end of the upper driving rod is connected to the upper end of the first bearing seat, and a lower driving rod arranged along the direction of the second bearing seat is provided in the middle of the lower bearing seat, and the upper end of the lower driving rod is connected to the lower end of the second bearing seat. The upper driving rod moves in cooperation with the upper bearing seat and the upper driving motor and drives the first bearing seat to move, and the lower driving rod moves in cooperation with the lower bearing seat and the lower driving motor and drives the second bearing seat to move.

[0012] In the above-mentioned mold structure for improving parallel accuracy, a fixed seat is provided below the lower roller seat, a plurality of lower roller wire rods axially penetrating the fixed seat are provided at the lower end of the lower roller seat, a lower roller bearing seat connected to the lower roller wire rod is provided on the fixed seat, and a lower roller driving motor is connected to the lower roller bearing seat. The lower roller driving motor moves the lower roller wire rod through the lower roller bearing seat, and the lower roller wire rod moves the lower roller seat.

[0013] In the above-mentioned mold structure for improving parallel accuracy, the width of the first side roller seat is equal to the width of the upper roller frame translation space, and the width of the second side roller seat and the width of the lower roller seat are both equal to the width of the lower roller frame translation space.

[0014] Compared with the existing technology, the advantages of the utility model are:

[0015] 1. The device adopts a frame-type parallel movement structure to enhance parallelism, thereby better ensuring parallel accuracy and ensuring uniform and stable force, while saving costs and facilitating maintenance.

[0016] 2. The device utilizes the translation space of the upper roller frame, the translation space of the lower roller frame and the frame group, which can play a guiding role during operation, thereby ensuring the balance and improving the overall stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a top view of the utility model.

[0019] In the figure: frame group 1, frame 11, upper bearing seat 12, lower bearing seat 13, upper drive motor 14, lower drive motor 15, upper connecting rod 16, lower connecting rod 17, upper drive rod 18, lower drive rod 19, upper roller frame 2, upper roller frame translation space 21, lower roller frame 3, lower roller frame translation space 31, first side roller seat 4, first side roller groove 41, first side roller shaft 42, first screw rod member 43, first bearing seat 44, first drive motor 45, second side roller seat 5, second side roller groove 51, second side roller shaft 52, second screw rod member 53, second bearing seat 54, second drive motor 55, lower roller seat 6, lower roller groove 61, lower roller shaft 62, fixed seat 63, lower roller screw rod member 64, lower roller bearing seat 65, lower roller drive motor 66. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1-2 As shown, a mold structure for improving parallel accuracy includes two relatively arranged frame groups 1, a plurality of upper roller frames 2 are arranged between the frame groups 1, a plurality of lower roller frames 3 are arranged below the upper roller frames 2, an upper roller frame translation space 21 is provided between the upper roller frames 2, a lower roller frame translation space 31 corresponding to the upper roller frame translation space 21 is provided between the lower roller frames 3, first side roller seats 4 are respectively provided at both ends of the upper roller frame translation space 21, second side roller seats 5 are respectively provided at both ends of the lower roller frame translation space 31, a lower roller seat 6 is provided in the middle of the lower roller frame translation space 31, the opening of the first side roller seat 4 is arranged toward the lower roller frame translation space 31, and the opening of the second side roller seat 5 is arranged toward the middle of the lower roller frame translation space 31. The first side roller seat 4 moves in the upper roller frame translation space 21, and the upper roller frame 2 plays a limiting role to prevent the first side roller seat 4 from shaking when moving. The second side roller seat 5 and the lower roller seat 6 both move in the lower roller frame translation space 31, and the lower roller frame 3 plays a limiting role to prevent the second side roller seat 5 and the lower roller seat 6 from shaking when moving, thereby improving the overall stability.

[0022] Combination Figure 1 and Figure 2 As shown, the frame group 1 has two frames 11, and the number of upper roller frames 2 and lower roller frames 3 are both two, the upper roller frame 2 is located above the lower roller frame 3, and the two ends of the upper roller frame 2 and the lower roller frame 3 on the same side are respectively connected to the frames 11 on the same side of the two frame groups 1, and the upper roller frame 2 and the frame group 1, as well as the lower roller frame 3 and the frame group 1 are all rectangular structures. The use of a rectangular design structure can improve the balance strength.

[0023] Among them, an upper bearing seat 12 is provided at the upper end of the frame group 1, and the upper bearing seat 12 is arranged between the upper ends of the two frames 11. A lower bearing seat 13 is provided at the lower end of the frame group 1, and the lower bearing seat 13 is arranged between the lower ends of the two frames 11. One of the upper bearing seats 12 is connected to an upper drive motor 14, and one of the lower bearing seats 13 is connected to a lower drive motor 15.

[0024] Specifically, two upper connecting rods 16 are provided between the two upper bearing seats 12, the upper connecting rods 16 are respectively provided at both ends of the upper bearing seats 12, and the upper connecting rods 16 are respectively provided in correspondence with the upper roller frame 2, and two lower connecting rods 17 are provided between the two lower bearing seats 13, the lower connecting rods 17 are respectively provided at both ends of the lower bearing seats 13, and the lower connecting rods 17 are respectively provided in correspondence with the lower roller frame 3. The upper connecting rod 16 is used to connect the two upper bearing seats 12, and when one of the upper bearing seats 12 moves, the other upper bearing seat 12 moves with it, and the lower connecting rod 17 is used to connect the two lower bearing seats 13, and when one of the lower bearing seats 13 moves, the other lower bearing seat 13 moves with it.

[0025] Furthermore, a first side roller groove 41 is provided in the first side roller seat 4, wherein a first side roller shaft 42 is provided in one of the first side roller grooves 41, a second side roller groove 51 is provided in the second side roller seat 5, wherein a second side roller shaft 52 is provided in one of the second side roller grooves 51, a lower roller groove 61 is provided in the lower roller seat 6, and a lower roller shaft 62 is provided in the lower roller groove 61.

[0026] Furthermore, a plurality of axially extending first screw rods 43 are provided at one side of the upper end of the first side roller seat 4 away from the other first side roller seat 4, and a first bearing seat 44 located in the frame group 1 is provided at one end of the first screw rod 43 away from the first side roller seat 4, and a first driving motor 45 is connected to the first bearing seat 44. The first driving motor 45 moves the first screw rod 43 through the first bearing seat 44, and the first screw rod 43 moves the first side roller seat 4 at the same time.

[0027] At the same time, a plurality of axially extending second screw rods 53 are provided at one end of the second side roller seat 5 away from the other second side roller seat 5, and a second bearing seat 54 located in the frame group 1 is provided at one end of the second screw rod 53 away from the second side roller seat 5, and a second driving motor 55 is connected to the second bearing seat 54. The second driving motor 55 moves the second screw rod 53 through the second bearing seat 54, and the second screw rod 53 moves the second side roller seat 5 at the same time.

[0028] Obviously, an upper driving rod 18 is provided on the inner side of the middle of the upper bearing seat 12 and arranged along the direction of the first bearing seat 44, and the lower end of the upper driving rod 18 is connected to the upper end of the first bearing seat 44. A lower driving rod 19 is provided on the inner side of the middle of the lower bearing seat 13 and arranged along the direction of the second bearing seat 54, and the upper end of the lower driving rod 19 is connected to the lower end of the second bearing seat 54. The upper driving rod 18 moves and drives the first bearing seat 44 to move under the cooperation of the upper bearing seat 12 and the upper driving motor 14, and the lower driving rod 19 moves and drives the second bearing seat 54 to move under the cooperation of the lower bearing seat 13 and the lower driving motor 15.

[0029] Among them, a fixed seat 63 is provided below the lower roller seat 6, and a plurality of lower roller wire rods 64 are provided at the lower end of the lower roller seat 6, which axially penetrate the fixed seat 63, and a lower roller bearing seat 65 connected to the lower roller wire rod 64 is provided on the fixed seat 63, and a lower roller driving motor 66 is connected to the lower roller bearing seat 65. The lower roller driving motor 66 moves the lower roller wire rod 64 through the lower roller bearing seat 65, and the lower roller wire rod 64 moves the lower roller seat 6 at the same time.

[0030] like Figure 2 As shown, the width of the first side roller seat 4 is equal to the width of the upper roller frame translation space 21 , and the width of the second side roller seat 5 and the width of the lower roller seat 6 are both equal to the width of the lower roller frame translation space 31 .

[0031] The principle of this embodiment is:

[0032] The first side roller seat 4 is connected to the first bearing seat 44 through the first screw rod member 43, and the first side roller seat 4 is axially moved under the drive of the first drive motor 45. The second side roller seat 5 is connected to the second bearing seat 54 through the second screw rod member 53, and the second side roller seat 5 is axially moved under the drive of the second drive motor 55. The lower roller seat 6 is connected to the lower roller bearing seat 65 through the lower roller screw rod member 64, and the lower roller seat 6 is axially moved under the drive of the lower roller drive motor 66. The upper bearing seat 12 and the lower bearing seat 13 are respectively mounted on the upper and lower ends of the frame group 1. The upper drive rod 18 in the upper bearing seat 12 is connected to the first bearing seat 44 and moves up and down under the drive of the upper drive motor 14. The lower drive rod 19 in the lower bearing seat 13 is connected to the second bearing seat 54 and moves up and down under the drive of the lower drive motor 15. The upper roller frame translation space 21 and the lower roller frame translation space 31 play a role of smooth guiding.

[0033] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0034] Although this article uses the terms such as frame group 1, frame 11, upper bearing seat 12, lower bearing seat 13, upper drive motor 14, lower drive motor 15, upper connecting rod 16, lower connecting rod 17, upper drive rod 18, lower drive rod 19, upper roller frame 2, upper roller frame translation space 21, lower roller frame 3, lower roller frame translation space 31, first side roller seat 4, first side roller groove 41, first side roller shaft 42, first screw rod member 43, first bearing seat 44, first drive motor 45, second side roller seat 5, second side roller groove 51, second side roller shaft 52, second screw rod member 53, second bearing seat 54, second drive motor 55, lower roller seat 6, lower roller groove 61, lower roller shaft 62, fixed seat 63, lower roller screw rod member 64, lower roller bearing seat 65, lower roller drive motor 66 more frequently, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations construed by them are contrary to the spirit of the present invention.

Claims

1. A mold structure for improving parallel accuracy, comprising two frame groups (1) arranged opposite to each other, a plurality of upper roller frames (2) being arranged between the frame groups (1), and a plurality of lower roller frames (3) being arranged below the upper roller frames (2), characterized in that: An upper roller frame translation space (21) is provided between the upper roller frames (2), and a lower roller frame translation space (31) corresponding to the upper roller frame translation space (21) is provided between the lower roller frames (3). First side roller seats (4) are provided at both ends of the upper roller frame translation space (21), and second side roller seats (5) are provided at both ends of the lower roller frame translation space (31). A lower roller seat (6) is provided in the middle of the lower roller frame translation space (31). The opening of the first side roller seat (4) is arranged toward the lower roller frame translation space (31), and the opening of the second side roller seat (5) is arranged toward the middle of the lower roller frame translation space (31).

2. A mold structure for improving parallelism accuracy according to claim 1, characterized in that: The frame group (1) has two frames (11), the number of the upper roller frame (2) and the number of the lower roller frame (3) are both two, the upper roller frame (2) is located above the lower roller frame (3), the two ends of the upper roller frame (2) and the lower roller frame (3) on the same side are respectively connected to the frames (11) on the same side of the two frame groups (1), and the upper roller frame (2) and the frame group (1) as well as the lower roller frame (3) and the frame group (1) are both rectangular structures.

3. A mold structure for improving parallel accuracy according to claim 2, characterized in that: An upper bearing seat (12) is provided at the upper end of the frame group (1), and the upper bearing seat (12) is arranged between the upper ends of the two frames (11). A lower bearing seat (13) is provided at the lower end of the frame group (1), and the lower bearing seat (13) is arranged between the lower ends of the two frames (11). One of the upper bearing seats (12) is connected to an upper drive motor (14), and one of the lower bearing seats (13) is connected to a lower drive motor (15).

4. A mold structure for improving parallelism accuracy according to claim 3, characterized in that: Two upper connecting rods (16) are provided between the two upper bearing seats (12), and the upper connecting rods (16) are respectively arranged at the two ends of the upper bearing seats (12), and the upper connecting rods (16) are respectively arranged in correspondence with the upper roller frame (2) up and down; two lower connecting rods (17) are provided between the two lower bearing seats (13), and the lower connecting rods (17) are respectively arranged at the two ends of the lower bearing seats (13), and the lower connecting rods (17) are respectively arranged in correspondence with the lower roller frame (3) up and down.

5. A mold structure for improving parallelism accuracy according to claim 3 or 4, characterized in that: The first side roller seat (4) is provided with a first side roller groove (41), wherein a first side roller shaft (42) is provided in one of the first side roller grooves (41); the second side roller seat (5) is provided with a second side roller groove (51), wherein a second side roller shaft (52) is provided in one of the second side roller grooves (51); the lower roller seat (6) is provided with a lower roller groove (61), wherein a lower roller shaft (62) is provided in the lower roller groove (61).

6. A mold structure for improving parallelism accuracy according to claim 5, characterized in that: A plurality of axially extending first screw rods (43) are provided at the upper end of the first side roller seat (4) away from the other first side roller seat (4), and a first bearing seat (44) located in the frame group (1) is provided at the end of the first screw rod (43) away from the first side roller seat (4), and a first driving motor (45) is connected to the first bearing seat (44).

7. A mold structure for improving parallelism accuracy according to claim 6, characterized in that: The second side roller seat (5) is provided with a plurality of axially extending second screw rod members (53) at one end away from the other second side roller seat (5), and the second screw rod member (53) is provided with a second bearing seat (54) located in the frame group (1) at one end away from the second side roller seat (5), and the second bearing seat (54) is connected to a second drive motor (55).

8. A mold structure for improving parallelism accuracy according to claim 7, characterized in that: An upper driving rod (18) is provided on the inner side of the middle part of the upper bearing seat (12) and is arranged along the direction of the first bearing seat (44). The lower end of the upper driving rod (18) is connected to the upper end of the first bearing seat (44). A lower driving rod (19) is provided on the inner side of the middle part of the lower bearing seat (13) and is arranged along the direction of the second bearing seat (54). The upper end of the lower driving rod (19) is connected to the lower end of the second bearing seat (54).

9. A mold structure for improving parallelism accuracy according to claim 1, characterized in that: A fixed seat (63) is provided below the lower roller seat (6); a plurality of lower roller wire rods (64) axially penetrating the fixed seat (63) are provided at the lower end of the lower roller seat (6); a lower roller bearing seat (65) connected to the lower roller wire rods (64) is provided on the fixed seat (63); and a lower roller driving motor (66) is connected to the lower roller bearing seat (65).

10. The mold structure for improving parallelism accuracy according to claim 1, characterized in that: The width of the first side roller seat (4) is equal to the width of the upper roller frame translation space (21), and the width of the second side roller seat (5) and the width of the lower roller seat (6) are both equal to the width of the lower roller frame translation space (31).

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