Special super-heavy-duty toothed hammer head surfacing welding auxiliary tooling
By designing auxiliary tooling for the base, support frame, and positioning and clamping mechanism, the problems of inaccurate positioning and weak clamping during the hammer welding process were solved, achieving precise positioning and reliable clamping of the hammer, improving welding quality and safety, and reducing operational difficulty and labor intensity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA TIANDI BENNIU IND GRP
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-19
AI Technical Summary
In existing technologies, the welding process of hammerheads lacks precise positioning and reliable clamping, which makes the hammerheads prone to shaking and displacement during the welding process, affecting the welding quality. This is especially true for special ultra-heavy-duty toothed hammerheads, where the welding operation is difficult and the safety is poor.
An auxiliary tooling was designed, comprising a base, a support frame, and a positioning and clamping mechanism. The support frame can rotate horizontally, and the positioning seat is fixed to both ends of the support frame via a rotating shaft. The positioning seat has a groove for clamping the hammer head. Combined with a rotating gear and a locking mechanism, the hammer head can be accurately positioned and reliably clamped, adapting to the welding needs of hammer heads of different specifications.
It improves the precision and safety of hammer welding, reduces labor intensity, ensures welding quality and temperature control, and enhances welding efficiency and safety.
Smart Images

Figure CN224373262U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining crusher technology, and in particular to a special ultra-heavy-duty knife-tooth hammerhead surfacing welding auxiliary tooling. Background Technology
[0002] In the mining machinery industry, hammerheads are key wear parts of equipment such as crushers. To improve the wear resistance and service life of hammerheads, surfacing welding is often required. However, existing surfacing welding methods have some problems. Traditional surfacing welding operations mostly involve simply fixing the hammerhead to a workbench and manually rotating it. Even slight misalignment can affect the weld appearance. The lack of precise positioning and reliable clamping devices makes the hammerhead prone to shaking and displacement during the surfacing welding process, affecting the weld quality. Moreover, for special heavy-duty toothed hammerheads with their unique shape and weight, the welding production process is not very adaptable. From support and placement, each position needs to be manually fixed, and manual rotation presents both difficulties and safety challenges. Summary of the Invention
[0003] In order to solve the technical problems existing in the above-mentioned technologies, it is necessary to provide a special auxiliary tooling for welding ultra-heavy-duty knife-tooth hammer head overlay.
[0004] A special heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling includes a base, a support frame, and a positioning and clamping mechanism;
[0005] The support frame is rotatably mounted on the base, allowing the support frame to rotate horizontally along the base;
[0006] The positioning and clamping mechanism includes a rotating shaft and a positioning seat; the positioning seat has a groove for mounting a hammer head, the rotating shaft is fixed at both ends of the positioning seat, and the rotating shaft is horizontally mounted at both ends of the support frame so that the positioning seat can rotate along the rotating shaft.
[0007] Preferably, a positioning rod for pressing the hammer head is installed on the side of the positioning seat in a direction perpendicular to the axis of the positioning seat.
[0008] Preferably, the positioning rod is threadedly connected to the positioning seat.
[0009] Preferably, a rotating gear is mounted on the rotating shaft, so that the rotating gear can drive the positioning seat to rotate.
[0010] Preferably, a rotating shaft that is fixedly connected to the bottom of the support frame is rotatably mounted on the top of the base.
[0011] Preferably, the end of the support frame is provided with a locking mechanism for restricting the rotation of the rotating gear.
[0012] Preferably, the locking mechanism includes a rotating seat and a locking member; the rotating seat is rotatably mounted on the end of the support frame, and the locking member is mounted on the rotating seat. When the rotating seat is rotated, the locking end of the locking member rotates toward the rotating gear, so as to lock the rotating gear by using the locking end of the locking member.
[0013] Preferably, the locking member includes a connecting rod mounted on the rotating seat and a locking part fixed on the connecting rod, so that the locking member as a whole has an F-shaped structure.
[0014] Preferably, the rotating seat rotates counterclockwise and clockwise by an angle of 60°.
[0015] Compared with existing technologies, this utility model provides a special heavy-duty knife-tooth hammer welding auxiliary fixture, including a base, a support frame, and a positioning and clamping mechanism. The support frame is rotatably mounted on the base, allowing it to rotate horizontally along the base. The positioning and clamping mechanism includes a rotating shaft and a positioning seat. The positioning seat has a groove for mounting the hammer, and the rotating shaft is fixed at both ends of the positioning seat and horizontally rotatably mounted at both ends of the support frame, allowing the positioning seat to rotate along the rotating shaft. In use, this utility model can clamp and fix the hammer through the positioning seat. During welding, the welding position of the knife-tooth workpiece can be adjusted by horizontally rotating the support frame and rotating the positioning seat, thereby ensuring welding quality. This not only reduces labor intensity but also improves the safety of knife-tooth welding operations. Furthermore, it effectively ensures the control of interpass temperature during welding, thus improving welding quality. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This utility model Figure 1 A side view structural diagram.
[0019] Figure 3 This utility model Figure 1 A top-view structural diagram.
[0020] Figure 4 This utility model Figure 1 A schematic diagram of the cross-sectional structure of AA.
[0021] In the figure: base 01, support frame 02, positioning and clamping mechanism 03, rotating shaft 31, positioning seat 32, positioning rod 33, rotating gear 04, rotating shaft 05, locking mechanism 06, rotating seat 61, locking part 62, connecting rod 621, locking part 622. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0024] Please refer to Figures 1 to 4 This utility model provides a special heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling, including a base 01, a support frame 02, and a positioning and clamping mechanism 03;
[0025] The support frame 02 is rotatably mounted on the base 01, allowing the support frame 02 to rotate horizontally along the base 01, aligning it with the operator's welding starting position.
[0026] The positioning and clamping mechanism 03 includes a rotating shaft 31 and a positioning seat 32. The positioning seat 32 has a groove for clamping the hammer head, ensuring its stability during welding. The rotating shaft 31 is fixed to both ends of the positioning seat 32 and is horizontally mounted on both ends of the support frame 02, allowing the positioning seat 32 to rotate along the rotating shaft 31. The rotating shaft 31 can be rotatably mounted to the support frame 02 via bearings. In use, the hammer head is clamped and fixed using the positioning seat 32. During welding, the welding position of the workpiece can be adjusted by horizontally rotating the support frame 02 and rotating the positioning seat 32, achieving precise positioning and reliable clamping of the hammer head during the welding process. This improves adaptability to hammer heads of different specifications, ensures welding quality and efficiency, reduces labor intensity, and enhances the safety of the welding operation. Furthermore, it effectively controls the interpass temperature during welding, improving welding quality.
[0027] In one embodiment, a positioning rod 33 for clamping the hammer head is installed on the side of the positioning seat 32 in a direction perpendicular to the axis of the positioning seat 32. Preferably, the positioning rod 33 and the positioning seat 32 can be connected by a thread. When it is necessary to clamp and fix the workpiece, simply tighten the positioning rod 33. To ensure a better clamping effect, positioning rods 33 can be installed on both symmetrical sides of the positioning seat 32. The number of positioning rods 33 can also be multiple, evenly distributed along the axis of the positioning seat 32, to accommodate different clamping needs.
[0028] In one embodiment, a rotating gear 04 is mounted on the rotating shaft 31, enabling the rotating gear 04 to drive the positioning seat 32 to rotate, ensuring the welding position angle of the cutting teeth is arbitrary, reducing labor intensity, and improving the safety of the cutting tooth welding operation. The rotating gear 04 can be rotated manually or driven by a motor.
[0029] In one embodiment, a rotating shaft 05 is rotatably mounted on the top of the base 01. The rotating shaft 05 and the base 01 can be connected by bearings to achieve rotation. The upper end of the rotating shaft 05 is fixedly connected to the bottom of the support frame 02. Of course, for easy disassembly and assembly, the connection can be fixed by fastening with flange bolts.
[0030] In one embodiment, the end of the support frame 02 is provided with a locking mechanism 06 for limiting the rotation of the rotating gear 04, so as to ensure that after the positioning seat 32 is adjusted to a suitable welding position, the position can be limited by the locking mechanism 06 to prevent the positioning seat 32 from being displaced during welding.
[0031] Specifically, the locking mechanism 06 includes a rotating seat 61 and a locking member 62. The rotating seat 61 is rotatably mounted on the end of the support frame 02, and the locking member 62 is mounted on the rotating seat 61. When the rotating seat 61 is rotated counterclockwise, the locking end of the locking member 62 rotates toward the rotating gear 04, so that the locking end of the locking member 62 can lock the rotating gear 04. When it is not necessary to lock the rotating gear 04, the rotating seat 61 can be rotated clockwise to disengage the locking end of the locking member 62 from the rotating gear 04.
[0032] Specifically, the locking member 62 includes a connecting rod 621 mounted on the rotating base 61 and a locking part 622 fixed on the connecting rod 621, so that the locking member 62 has an overall F-shaped structure.
[0033] To be specific, the rotating base 61 rotates 60° counterclockwise and 60° clockwise.
[0034] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A special auxiliary tooling for welding ultra-heavy-duty knife-tooth hammer heads, characterized in that: Includes base, support frame, and positioning and clamping mechanism; The support frame is rotatably mounted on the base, allowing the support frame to rotate horizontally along the base; The positioning and clamping mechanism includes a rotating shaft and a positioning seat; the positioning seat has a groove for mounting a hammer head, the rotating shaft is fixed at both ends of the positioning seat, and the rotating shaft is horizontally mounted at both ends of the support frame so that the positioning seat can rotate along the rotating shaft.
2. The special ultra-heavy-duty knife-tooth hammer head welding auxiliary tooling according to claim 1, characterized in that: A positioning rod for pressing the hammer head is installed on the side of the positioning seat in a direction perpendicular to the axis of the positioning seat.
3. The special ultra-heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling according to claim 2, characterized in that: The positioning rod is threadedly connected to the positioning seat.
4. The special ultra-heavy-duty knife-tooth hammer head welding auxiliary tooling according to claim 1 or 2, characterized in that: A rotating gear is mounted on the rotating shaft, which enables the positioning seat to rotate.
5. The special ultra-heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling according to claim 4, characterized in that: A rotating shaft, which is fixedly connected to the bottom of the support frame, is rotatably mounted on the top of the base.
6. The special ultra-heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling according to claim 4, characterized in that: The end of the support frame is provided with a locking mechanism for restricting the rotation of the rotating gear.
7. The special ultra-heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling according to claim 6, characterized in that: The locking mechanism includes a rotating seat and a locking member; the rotating seat is rotatably mounted on the end of the support frame, and the locking member is mounted on the rotating seat. When the rotating seat is rotated, the locking end of the locking member rotates toward the rotating gear, so as to lock the rotating gear by using the locking end of the locking member.
8. The special ultra-heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling according to claim 7, characterized in that: The locking component includes a connecting rod mounted on a rotating base and a locking part fixed on the connecting rod, so that the locking component as a whole has an F-shaped structure.
9. The special ultra-heavy-duty knife-tooth hammer head surfacing welding auxiliary tooling according to claim 7, characterized in that: The rotating base rotates 60° counterclockwise and 60° clockwise.