Adjustable threaded rod retainer

By introducing an adjustable second positioning bar and drive assembly into the tooth bar retainer, the problem of poor versatility of existing tooth bar retainers is solved, enabling flexible adaptation and convenient fixing of round tubes of different specifications.

CN224183040UActive Publication Date: 2026-05-01ZHONGSHAN LVHEXIN AUTOMATION EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN LVHEXIN AUTOMATION EQUIP CO LTD
Filing Date
2025-02-12
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing tooth bar retainer has a fixed structure, which means it can only be placed on round tubes of a fixed size, resulting in poor versatility and time-consuming and laborious replacement.

Method used

An adjustable tooth bar retainer was designed. By setting a fixed front positioning bar, a first positioning bar, and a second positioning bar that can move back and forth, the position of the second positioning bar can be adjusted in combination with a drive component, so as to adapt to round tubes of different specifications.

Benefits of technology

It enables flexible placement and fixation of round tubes of different specifications, improves the versatility of the device, reduces the frequency of cage replacement, and enhances ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model is applicable to the technical field of metal tube processing, and provides an adjustable threaded rod retainer which comprises a main frame, a front positioning strip, a first positioning strip and a second positioning strip, and guide rods extending forwards are arranged on two sides of the bottom of the second positioning strip. Linear bearing seats for guiding the guide rods are arranged on the two sides of the bottom of the first positioning strip, and the second positioning strip moves front and back through cooperation of the guide rods and the linear bearing seats. According to the adjustable threaded rod retainer, the second positioning strip capable of moving front and back is arranged, the position of the second positioning strip can be adjusted in the front-back direction according to the length of a circular pipe, so that the position for placing and fixing one end of the circular pipe is changed, and the distance between the second clamping seat and the guide strip can adapt to the circular pipes with different lengths; the machining requirements of circular pipes of various specifications can be met, the universality is higher, the tooth rod retainer does not need to be frequently replaced in the machining process, and more convenience is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of metal tube processing technology, and in particular relates to an adjustable tooth bar retainer. Background Technology

[0002] In the processing of metal round tubes such as copper tubes, a toothed rod holder is required to place the tubes at intervals and limit their position for processing. However, the existing toothed rod holder structure is fixed, and the distance between the guide strips and clamping seats used to fix the ends of the round tube is fixed. This means that the device can only place round tubes of a fixed specification. When processing round tubes of different specifications, toothed rod holders of different specifications must be replaced for placement. This results in poor versatility, time-consuming and laborious replacement, and inconvenience in use. Utility Model Content

[0003] This invention provides an adjustable tooth bar retainer, which aims to solve the problem that the existing tooth bar retainer structure is fixed, and the distance between the guide strips and clamping seats at both ends of the round tube is fixed, so that the device can only be placed on round tubes of fixed specifications, resulting in poor versatility.

[0004] This utility model is implemented as follows: an adjustable tooth bar retainer includes a main frame, a front positioning strip is fixedly installed at the front end of the top of the main frame, a guide strip is provided on the front positioning strip, and a first positioning strip is fixedly connected to the rear end of the top of the main frame, and a first clamp is provided at the top of the first positioning strip.

[0005] It also includes a second positioning bar, the top of which is provided with a second clamping seat, and the bottom sides of the second positioning bar are provided with forward-extending guide rods. The bottom sides of the first positioning bar are provided with linear bearing seats that guide the guide rods. The second positioning bar moves back and forth through the cooperation of the guide rods and the linear bearing seats.

[0006] The main frame is equipped with a drive component that drives the second positioning bar to move back and forth.

[0007] Preferably, the drive assembly includes a threaded screw, a nut seat, and a connecting plate. The nut seat is fixedly installed inside the main frame, the threaded screw is threadedly connected through the nut seat, the connecting plate is fixedly installed at the bottom of the second positioning bar, and the rear end of the threaded screw is rotatably connected to the connecting plate.

[0008] Preferably, a handwheel is provided at the front end of the threaded screw.

[0009] Preferably, locking seats that can lock the guide rod are provided on both sides of the main frame.

[0010] Preferably, mounting seats for mounting the guide rod are fixedly connected to both sides of the bottom of the second positioning strip. Beneficial effects

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The adjustable tooth bar retainer of this utility model, by setting a fixed front positioning bar, a first positioning bar, and a second positioning bar that can move back and forth, allows for the adjustment of the position of the second positioning bar in the back and forth direction according to the length of the round tube when placing and fixing round tubes of different specifications. This changes the position of one end of the round tube being placed and fixed, so that the distance between the second clamp and the guide bar can be adapted to round tubes of different lengths. It can meet the processing needs of round tubes of various specifications, has stronger versatility, and does not require frequent replacement of the tooth bar retainer during processing, making it more convenient. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model from a rear-side view.

[0014] Figure 3 This is a three-dimensional structural diagram of the present invention from a slightly downward angle;

[0015] In the diagram: 1-Main frame, 2-Front positioning bar, 3-First positioning bar, 4-First clamp, 5-Second positioning bar, 6-Second clamp, 7-Locking seat, 8-Linear bearing seat, 9-Threaded screw, 10-Handwheel, 11-Nut seat, 12-Guide rod, 13-Mounting seat, 14-Connecting plate, 15-Guide bar. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: an adjustable tooth bar retainer, including a main frame 1, a front positioning strip 2 fixedly installed at the front end of the top of the main frame 1, a guide strip 15 provided on the front positioning strip 2, a first positioning strip 3 fixedly connected to the rear end of the top of the main frame 1, and a first clamp 4 provided on the top of the first positioning strip 3.

[0018] The guide bar 15 has multiple through holes along the front-to-back direction for the circular tube to pass through, and they are spaced apart along the left-to-right direction.

[0019] It also includes a second positioning strip 5, and a second clamp 6 is provided on the top of the second positioning strip 5.

[0020] The first clamp 4 and the second clamp 6 each include upper and lower clamping plates. The two clamping plates have corresponding grooves on their opposite surfaces for placing and fixing the round tube. The lower clamping plates are fixedly installed on the first positioning strip 3 and the second positioning strip 5, respectively. The two upper clamping plates are detachably installed on the lower clamping plates, and the upper and lower clamping plates clamp the round tube.

[0021] The front positioning strip 2, the first positioning strip 3, and the second positioning strip 5 are at the same horizontal height to ensure that the round tube is in a stable state when it is placed in place.

[0022] The second positioning bar 5 has forward-extending guide rods 12 on both sides of its bottom, and the first positioning bar 3 has linear bearing seats 8 on both sides of its bottom to guide the guide rods 12. The second positioning bar 5 moves back and forth through the cooperation of the guide rods 12 and the linear bearing seats 8.

[0023] The linear bearing housing 8 can also be installed on the side wall of the main frame 1. The linear bearing housing 8 supports and guides the guide rod 12, thereby supporting the second positioning strip 5 and keeping it at the same horizontal height as the first positioning strip 3. By pulling the second positioning strip 5 back and forth, the guide rod 12 moves back and forth relative to the linear bearing housing 8, thereby realizing the back and forth movement of the second positioning strip 5 and the second clamp 6.

[0024] The main frame 1 is equipped with a drive assembly that drives the second positioning bar 5 to move back and forth.

[0025] Furthermore, the drive assembly includes a threaded screw 9, a nut seat 11, and a connecting plate 14. The nut seat 11 is fixedly installed inside the main frame 1, the threaded screw 9 is threadedly connected through the nut seat 11, the connecting plate 14 is fixedly installed at the bottom of the second positioning bar 5, and the rear end of the threaded screw 9 is rotatably connected to the connecting plate 14.

[0026] In this embodiment, since the threaded screw 9 is rotatably connected to the connecting plate 14 and threadedly engaged with the nut seat 11, when the threaded screw 9 is rotated, it rotates relative to the connecting plate 14 and the nut seat 11 and moves axially relative to the nut seat 11, thereby driving the connecting plate 14 and the second positioning strip 5 to move, thereby adjusting the front and rear positions of the second positioning strip 5, thereby changing the position of placing and fixing one end of the round tube. It can be adjusted according to the length of the round tube to be processed, so that the distance between the second clamp 6 and the guide strip 15 can be adapted to round tubes of different lengths.

[0027] Furthermore, a handwheel 10 is provided at the front end of the threaded screw 9. The handwheel 10 facilitates the rotation of the threaded screw 9.

[0028] The main frame 1 is a frame structure with multiple weight-reducing slots on its side. The front end of the threaded screw 9 can be located inside the frame structure, and the hand can be inserted through the weight-reducing slots for adjustment.

[0029] Furthermore, locking seats 7 are provided on both sides of the main frame 1 to lock the guide rod 12.

[0030] In this embodiment, a fixing strip 16 is fixedly installed on the main frame 1. The height of the fixing strip 16 is not higher than the front positioning strip 2, the first positioning strip 3, and the second positioning strip 5. The two ends of the fixing strip 16 extend to both sides of the main frame 1. The locking seat 7 is installed on both ends of the fixing strip 16. The guide rod 12 passes through the locking seat 7. When the locking seat 7 is not locked, the front and rear positions of the second positioning strip 5 can be adjusted normally. When the adjustment is in place, the guide rod 12 is locked by the locking seat 7 to keep the position of the second positioning strip 5 fixed, so as to avoid the second positioning strip 5 changing its position due to accidental contact during processing.

[0031] When placing and fixing a batch of round tubes of the same specification, the positions of the second positioning strip 5 and the second clamp 6 do not need to be adjusted. Therefore, they can be locked and positioned by locking seat 7. When adjustment is needed, the locking seat 7 can be loosened for adjustment.

[0032] Furthermore, mounting seats 13 for mounting the guide rod 12 are fixedly connected to both sides of the bottom of the second positioning strip 5. The rear end of the guide rod 12 is fixedly mounted to the second positioning strip 5 through the mounting seats 13.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable tooth bar retainer, characterized in that: Includes a main frame (1), a front positioning strip (2) is fixedly installed at the front end of the top of the main frame (1), a guide strip (15) is provided on the front positioning strip (2), a first positioning strip (3) is fixedly connected to the rear end of the top of the main frame (1), and a first clamp (4) is provided on the top of the first positioning strip (3). It also includes a second positioning bar (5), the top of the second positioning bar (5) is provided with a second clamp (6), the bottom sides of the second positioning bar (5) are provided with forward-extending guide rods (12), the bottom sides of the first positioning bar (3) are provided with linear bearing seats (8) for guiding the guide rods (12), and the second positioning bar (5) moves back and forth through the cooperation of the guide rods (12) and the linear bearing seats (8); The main frame (1) is provided with a drive component that drives the second positioning bar (5) to move back and forth.

2. The adjustable tooth bar retainer as described in claim 1, characterized in that: The drive assembly includes a threaded screw (9), a nut seat (11), and a connecting plate (14). The nut seat (11) is fixedly installed inside the main frame (1). The threaded screw (9) is threaded through the nut seat (11). The connecting plate (14) is fixedly installed at the bottom of the second positioning bar (5). The rear end of the threaded screw (9) is rotatably connected to the connecting plate (14).

3. An adjustable tooth bar retainer as described in claim 2, characterized in that: A handwheel (10) is provided at the front end of the threaded screw (9).

4. An adjustable tooth bar retainer as described in claim 1, characterized in that: The main frame (1) is provided with locking seats (7) on both sides to lock the guide rod (12).

5. An adjustable tooth bar retainer as described in claim 1, characterized in that: The bottom sides of the second positioning bar (5) are fixedly connected with mounting seats (13) for mounting the guide rod (12).