Linear slotting tool
By designing a straight-line grooving fixture, the grooving tool can be moved precisely in a straight line using a moving chassis and guide components. Combined with a fine-tuning mechanism, the problems of poor straightness and low efficiency in grooving the inner wall of the pipe tower are solved, and high-precision automated grooving is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU GUOHUA TUBE TOWER MFR
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-24
Smart Images

Figure CN224544105U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe tower manufacturing technology, specifically to a straight-line slotting tool. Background Technology
[0002] The tower body is made of bent and rolled steel plates. Before welding in the forming process, the longitudinal weld seams need to be manually grooved. If there are residual weld beads or other debris on the inside of the longitudinal weld seam, it is difficult to manually control the angle grinder to grind in a straight line, affecting the straightness of the groove and causing it to deviate from the expected trajectory, thus affecting the quality of the internal weld. Manually using handheld grooving equipment is also relatively slow, laborious, and inefficient. Utility Model Content
[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a linear grooving fixture. By setting up a linear guide, a movable chassis, and a fixing component, the grooving tool can achieve precise linear movement, reducing the labor intensity of operators.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a straight grooving tooling, comprising: A mobile chassis, on which an installation platform is mounted; A linear guide has the degree of freedom to move linearly on an installation platform, wherein the installation platform is provided with a power mechanism to drive the linear guide to move. The fastener, hinged to the front end of the linear guide, is used to fix the grooving tool.
[0005] Preferably, the power mechanism includes: The shaft is rotatably mounted on the mounting platform via a bearing housing. Gears are fitted onto a rotating shaft; The rack is fixed to the linear guide and meshes with the gear.
[0006] Preferably, a motor is fixed on the mounting platform, and the motor is connected to the rotating shaft via a reducer.
[0007] Preferably, the mounting platform is provided with a longitudinal slider, and the linear guide is provided with a longitudinal linear guide rail that slides with the longitudinal slider.
[0008] Preferably, a fixed base is fixed to the top of the installation platform, and multiple longitudinal sliders are symmetrically arranged on the fixed base. Two longitudinal linear guides are symmetrically fixed to the left and right sides of the linear guide.
[0009] Preferably, a pin is rotatably mounted on the front end of the linear guide via a bearing seat; one end of the fixing member is sleeved on the pin, and the other end is fixedly mounted on the grooving tool via a connector.
[0010] Preferably, the grooving tool is an angle grinder, and the connecting member is a clamp.
[0011] Preferably, the linear guide is a square tube, and two connecting plates are fixed to the end of the square tube away from the installation platform. Two bearing seats are symmetrically arranged on the two connecting plates, and the fixing member is hinged between the two connecting plates by a pin.
[0012] Preferably, the mounting platform has a degree of freedom to move on the mobile chassis perpendicular to the linear guide.
[0013] Preferably, a transverse linear guide rail is fixed on the mobile chassis, and a transverse slider that is slidably mounted on the transverse linear guide rail is fixed at the bottom of the mounting platform.
[0014] The beneficial effects of this utility model are as follows: This utility model designs a linear grooving fixture with a movable base for easy overall movement. The linear guide can move linearly on the installation platform, and the grooving tool is hinged to the front end of the linear guide. This allows the grooving tool to move along a straight line under the action of the linear guide, while also rotating freely at the front end of the linear guide due to its own weight, conforming to the inner wall of the tower for grooving, ensuring the straightness of the grooving and improving grooving accuracy. This utility model is equipped with a power mechanism. The motor drives the gear to rotate through the reducer, thereby driving the linear guide to move linearly at a uniform speed, eliminating the need for manual propulsion and achieving automatic grooving, saving manpower. The transverse linear guide rail and transverse slider of this utility model allow the installation platform to move left and right on the movable base, facilitating fine adjustment of the left and right position of the grooving tool, and thus adjusting the grooving position. 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 A top-view perspective view of the overall structure of a straight-line slotting tool provided for an embodiment of this utility model.
[0017] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.
[0018] Figure 3 for Figure 1 A magnified view of a section at point B.
[0019] Figure 4 A perspective view of the overall structure of a straight grooving tool provided in an embodiment of this utility model, viewed from below.
[0020] Figure 5 for Figure 4 A magnified view of a section at point C.
[0021] Figure 6 A side view of the overall structure of a straight grooving tool provided in an embodiment of this utility model.
[0022] Explanation of reference numerals in the attached figures: 1. Cart, 2. Horizontal linear guide, 3. Horizontal slider, 4. Mounting platform, 5. Motor, 6. Reducer, 7. Shaft, 8. Gear, 9. Square tube, 10. Rack, 11. Longitudinal linear guide, 12. Longitudinal slider, 13. Fixture, 14. Connecting plate, 15. Pin, 16. Bearing, 17. Fixture, 18. Clamp, 19. Angle grinder. Detailed Implementation
[0023] 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.
[0024] Example 1 like Figures 1 to 6 As shown, Embodiment 1 of this utility model provides a linear grooving fixture, including a movable chassis. The movable chassis supports the entire fixture and provides convenient mobility. The movable chassis can be a manual trolley 1 with casters installed at the bottom for easy manual pushing or dragging to the work site, or it can be other movable devices. A rigid mounting platform 4 is fixedly installed on the top of the movable chassis. The mounting platform 4 can be a frame welded from multiple plates. A guide mechanism is provided on the mounting platform 4 to provide linear motion freedom, guiding the movement of a long, linear guide member. The linear guide member can be made of a square tube 9 with a certain length, strength, and rigidity. Under the action of the guide mechanism, the linear guide member can perform precise linear reciprocating motion along a predetermined grooving direction (usually defined as the front-to-back direction) on the top of the mounting platform 4. A power mechanism is provided on the mounting platform 4 to drive the linear guide member to move.
[0025] At the end of the linear guide away from the mounting platform 4 (i.e., the front end), a fixing member 17 for securing the grooving tool is installed. The fixing member 17 is connected to the front end of the linear guide via a hinged structure. Figure 2As shown, two parallel, spaced-apart connecting plates 14 are fixedly installed at the front end of the linear guide member by welding or bolting. Bearing seats are symmetrically arranged on the two connecting plates 14, and a pin 15 passes through both connecting plates 14, achieving rotatable support through the bearing seats. A fixing member 17 has a plate-like structure, with one end sleeved on the pin 15 and positioned between the two connecting plates 14, allowing the fixing member 17 to rotate around the axis of the pin 15. The other end of the fixing member 17 holds a grooving tool. When the grooving tool (such as a commonly used handheld angle grinder 19) is installed on the fixing member 17, the grooving tool, together with the fixing member 17, can rotate freely within a certain angle range around the pin 15.
[0026] As one possible implementation, the end of the retainer 17 away from the pin 15 may be welded or bolted to a clamp 18, such as a two-part clamp 18 with locking bolts, for securely clamping the handle or head portion of the angle grinder 19. The grinding disc or cutting disc used for grooving in the angle grinder 19 is located in front of the retainer 17.
[0027] During operation, the operator uses a trolley 1 or other mobile chassis to position the entire tooling near the inner wall of the pipe tower to be grooved. After adjusting the initial position, the operator starts the power mechanism to drive the linear guide to move at a constant speed relative to the mounting platform 4. The grooving tool (angle grinder 19), held by the fixing component 17, then advances forward along a precise straight path. Because the grooving tool is hinged to the front end of the linear guide via a pin 15, the tool's own weight causes the grinding disc to naturally conform to the curved surface of the inner wall of the pipe tower, ensuring a basically consistent cutting depth. The grooving tool maintains a straight position and can adapt to the curvature of the pipe wall, thereby significantly improving the straightness and accuracy of the grooving.
[0028] Example 2 like Figure 5 As shown, based on Embodiment 1, this utility model proposes a specific design for the power mechanism. The power mechanism includes: a horizontally arranged rotating shaft 7, and two bearing seats symmetrically arranged on the mounting platform 4. The two ends of the rotating shaft 7 are rotatably mounted on the mounting platform 4 through the bearing seats. A gear 8 is sleeved on the rotating shaft 7, and a rack 10 is fixed to the bottom of the linear guide. The rack 10 and the gear 8 mesh with each other, thereby converting the rotational motion of the rotating shaft 7 into the linear translational motion of the linear guide.
[0029] To provide power to the rotating shaft 7, a motor 5 is fixedly installed on the side wall of the mounting platform 4. The motor 5 is connected to the input shaft of the reducer 6. The output shaft of the reducer 6 is directly or via a coupling connected to the rotating shaft 7, transmitting the rotational power of the motor 5 to the gear 8 after reduction and torque amplification. When the motor 5 is started, it drives the gear 8 to rotate at a constant speed through the reducer 6, which in turn drives the rack 10 and the linear guide to move at a constant speed in a straight line, realizing the automatic linear movement of the grooving tool without manual propulsion, thus reducing the operator's labor intensity.
[0030] Example 3 Based on Embodiment 1 and Embodiment 2, this embodiment strengthens the linear guide mechanism to improve the movement accuracy and load-bearing stability of the linear guide on the mounting platform 4.
[0031] like Figure 3 As shown, a longitudinal mounting base 13 is fixed to the top of the mounting platform 4. At least two longitudinal sliders 12 are symmetrically fixed on both sides of the mounting base 13. These longitudinal sliders 12 are high-precision linear guide sliders. Correspondingly, two parallel, equal-length longitudinal linear guides 11 are symmetrically fixed on the left and right sides of the linear guide. These two longitudinal linear guides 11 and the longitudinal sliders 12 mounted on the mounting base 13 are fitted one-to-one, forming a high-precision, high-rigidity double-track linear sliding pair. This structure greatly reduces the swaying and offset of the linear guide during movement, ensuring smooth and uniform movement along the set linear trajectory.
[0032] Secondly, to increase the convenience of fine-tuning the slot position, especially when facing wider pipe walls or needing to open multiple parallel slots, this embodiment enables the mounting platform 4 to perform lateral position adjustment on the mobile chassis (i.e., in a direction perpendicular to the movement direction of the linear guide). Figure 3 As shown, two transverse linear guide rails 2 are fixedly installed on the top surface of the mobile chassis in a direction perpendicular to the direction of movement of the linear guide (lateral). At the bottom of the mounting platform 4, a plurality of transverse sliders 3 are correspondingly fixedly installed, which slide in cooperation with the two transverse linear guide rails 2. This allows the entire mounting platform 4 and all the mechanisms supported above it (including the fixed base 13, longitudinal sliders 12, longitudinal linear guide rails 11, linear guide, power mechanism, and grooving tool) to slide smoothly laterally (left-right) on the mobile chassis.
[0033] As one possible implementation, a locking device (not shown in the figure, such as a set screw or clamp) can be provided on the side of the transverse slider 3 or the transverse linear guide 2. When the position is adjusted to the correct position, the relative position of the transverse slider 3 and the transverse linear guide 2 can be locked to prevent displacement during operation.
[0034] When the operator needs to fine-tune the lateral starting position of the slot, or prepares to open adjacent parallel slots after one slot has been opened, simply loosen the lateral locking device and push the mounting platform 4 or its components laterally by hand or with the aid of a tool (such as a push rod). This allows for easy and precise adjustment of the lateral position of the grooving tool relative to the moving base and the reference point of the workpiece. After adjustment, lock the device and then start the motor 5 to perform the grooving operation. This greatly improves the adaptability and ease of operation of the tooling.
[0035] In summary, the present invention effectively solves the technical problems of poor straightness, low precision, and high labor intensity in grooving the inner wall of the pipe tower through the above-mentioned settings, and realizes automated, high-precision, and high-efficiency grooving operations.
[0036] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.
Claims
1. A straight-line grooving tool, characterized in that, include: A mobile chassis, on which an installation platform is mounted; A linear guide has the degree of freedom to move linearly on an installation platform, wherein the installation platform is provided with a power mechanism to drive the linear guide to move. The fastener, hinged to the front end of the linear guide, is used to fix the grooving tool.
2. The straight-line grooving tooling as described in claim 1, characterized in that, The power mechanism includes: The shaft is rotatably mounted on the mounting platform via a bearing housing. Gears are fitted onto a rotating shaft; The rack is fixed to the linear guide and meshes with the gear.
3. The linear grooving tooling as described in claim 2, characterized in that, A motor is fixed on the mounting platform, and the motor is connected to the rotating shaft through a reducer.
4. The straight-line grooving tooling as described in claim 1, characterized in that, The mounting platform is provided with a longitudinal slider, and the linear guide is provided with a longitudinal linear guide rail that slides with the longitudinal slider.
5. The straight-line grooving tooling as described in claim 4, characterized in that, The top of the installation platform is fixed with a base, and multiple longitudinal sliders are symmetrically arranged on the base. Two longitudinal linear guides are symmetrically fixed on the left and right sides of the linear guide.
6. The straight-line grooving tooling as described in claim 1, characterized in that, The front end of the linear guide is rotatably mounted with a pin via a bearing seat; one end of the fixing member is sleeved on the pin, and the other end is fixedly mounted with a grooving tool via a connector.
7. A straight-line grooving fixture as described in claim 6, characterized in that, The grooving tool is an angle grinder, and the connecting component is a clamp.
8. A straight-line grooving fixture as described in claim 6, characterized in that, The linear guide is a square tube, and two connecting plates are fixed to the end of the square tube away from the installation platform. Two bearing seats are symmetrically arranged on the two connecting plates, and the fixing member is hinged between the two connecting plates by a pin.
9. A straight-line grooving fixture as described in claim 1, characterized in that, The installation platform has the degree of freedom to move perpendicular to the linear guide on the mobile chassis.
10. A straight-line grooving fixture as described in claim 9, characterized in that, A transverse linear guide rail is fixed on the mobile chassis, and a transverse slider that is slidably mounted on the transverse linear guide rail is fixed at the bottom of the mounting platform.