Positioning fixture for laser cladding of a rod

Abstract

The utility model discloses a kind of positioning fixtures for rod laser cladding, it is related to fixture field, including convex seat, adjusting assembly, driving assembly, support wheel and two connecting rod pieces, the left and right sides arm of convex seat is respectively provided with sliding slot;Support wheel is set in the top of convex seat, for the bottom of lifting rod piece, adjusting assembly is installed in the top of convex seat, and with the bottom of support wheel is connected, for adjusting the height of support wheel, the utility model lifts the bottom of rod piece by support wheel, by forward rotation double-sectioned thread rod, make two connecting rod pieces mutually close, in turn make two side positioning wheels respectively with the both sides contact of rod piece, three-point positioning, multidirectional stable support are carried out to rod piece, to effectively limit the sway of rod piece in the process of large rod rotation, greatly reduce the risk of rod piece drop, ensure the stability of rod piece in the process of laser cladding processing.

Description

Technical Field

[0001] This utility model belongs to the field of clamps, specifically relating to a positioning clamp for laser cladding of rods. Background Technology

[0002] In modern industrial manufacturing, laser cladding technology is widely used in the surface treatment and repair of large rods due to its advantages such as high precision and high efficiency. During the laser cladding process of large rods (such as long shafts and columns), stable clamping of the workpiece is crucial to ensuring processing accuracy and process safety.

[0003] However, due to the large size and weight of large rods, the traditional single chuck clamping method has obvious limitations. When the rod is rotating, it is very easy to shake or even fall off, resulting in a decrease in processing accuracy, surface quality defects, and even causing equipment or personal safety accidents.

[0004] Therefore, we propose a positioning fixture for laser cladding of rods to solve the above problems. Utility Model Content

[0005] In view of the obvious limitations of the traditional single chuck clamping method, which is prone to shaking or even falling off when the rod is rotated, this utility model provides a positioning fixture for laser cladding of rods.

[0006] The solution adopted by this utility model to solve its technical problem is: a positioning fixture for laser cladding of rods, including a convex seat, an adjustment component, a drive component, a support wheel and two connecting rods, wherein the left and right arms of the convex seat are respectively provided with sliding grooves;

[0007] The support wheel is located on the top of the convex seat and is used to support the bottom of the rod. The adjustment component is installed on the top of the convex seat and connected to the bottom of the support wheel to adjust the height of the support wheel.

[0008] The connecting rod is integrally connected by a long vertical section, a horizontal section and a short vertical section. The long vertical section is located on the outer side of the convex seat and a side positioning wheel is installed at its top. The horizontal section is located in the slide groove and the short vertical section is located in the inner cavity of the convex seat.

[0009] The drive assembly is installed inside the convex seat and connected to two short vertical sections for adjusting the spacing between the two connecting rods.

[0010] Preferably, the two bottom edges of the convex seat are provided with multiple mounting holes.

[0011] Preferably, the top of the convex seat has a through hole.

[0012] Preferably, the adjusting assembly includes a high-strength screw and two positioning nuts. The top end of the high-strength screw is welded and fixed to the bottom of the support wheel, and its bottom end protrudes through a through hole. The two positioning nuts are threadedly connected to the high-strength screw, and the two positioning nuts are located at the top and inner top of the convex seat, respectively.

[0013] Preferably, the drive assembly includes a double-segment threaded rod and two sliding nuts. The two segments of the double-segment threaded rod have opposite thread directions, and bearings are respectively fitted on the optical shafts at both ends. The two bearings are respectively installed on the left and right sides of the convex seat. The sliding nuts are installed on the short vertical segment and are threadedly connected to the double-segment threaded rod.

[0014] Preferably, one end of the double-segment threaded rod has an optical axis that passes through a bearing and is fixedly mounted with a rotating disk.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model uses support wheels to lift the bottom of the rod, and by rotating the double-segment threaded rod in the forward direction, the two connecting rods are brought closer to each other. Then, the two side positioning wheels contact the two sides of the rod respectively, providing three-point positioning and multi-directional stable support for the rod. This effectively limits the swaying of the rod during the rotation of large rods, greatly reduces the risk of the rod falling off, and ensures the stability of the rod during laser cladding processing.

[0017] 2. This utility model allows the high-strength screw to slide up and down by rotating the positioning nuts one by one, thereby adjusting the height of the support wheel to support rods of different diameters and improving the versatility and practicality of the positioning fixture. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a front view structural diagram of the present utility model.

[0020] In the diagram: 1. Convex seat, 11. Slide groove, 12. Mounting hole, 21. Long vertical section, 22. Horizontal section, 23. Short vertical section, 24. Side positioning wheel, 31. Support wheel, 32. Positioning nut, 33. High-strength screw, 41. Double-section threaded rod, 42. Sliding nut, 43. Rotary disk. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1-2 This utility model provides a technical solution for a positioning fixture for laser cladding of rods:

[0023] Example 1:

[0024] according to Figure 1 and Figure 2 As shown, it includes a convex seat 1, an adjustment assembly, a drive assembly, a support wheel 31, and two connecting rods. The top of the convex seat 1 has a through hole, and the left and right sides of the convex seat 1 have sliding grooves 11 respectively. The two bottom edges of the convex seat 1 have multiple mounting holes 12 to facilitate the use of bolts to fix the convex seat 1 through the mounting holes 12.

[0025] The support wheel 31 is located on the top of the convex seat 1 and is used to support the bottom of the rod. The adjustment assembly includes a high-strength screw 33 and two positioning nuts 32. The top end of the high-strength screw 33 is welded and fixed to the bottom of the support wheel 31, and its bottom end protrudes through a through hole. The two positioning nuts 32 are threadedly connected to the high-strength screw 33 respectively. The two positioning nuts 32 are located on the top and inner top of the convex seat 1 respectively. By rotating the positioning nuts 32 one by one, the high-strength screw 33 can slide up and down to adjust the height of the support wheel 31, so as to support rods of different diameters and improve the versatility and practicality of the positioning fixture.

[0026] The connecting rod is integrally connected by a long vertical section 21, a horizontal section 22, and a short vertical section 23. The long vertical section 21 is located on the outer side of the convex seat 1, and a side positioning wheel 24 is installed at its top. The horizontal section 22 is located in the slide groove 11, and the short vertical section 23 is located in the inner cavity of the convex seat 1. Under the action of the slide groove 11, the connecting rod can move smoothly laterally.

[0027] The drive assembly includes a double-segment threaded rod 41 and two sliding nuts 42. The two segments of the double-segment threaded rod 41 have opposite thread directions, and bearings are respectively mounted on the optical shafts at both ends. The two bearings are respectively installed on the left and right sides of the convex seat 1. One end of the optical shaft of the double-segment threaded rod 41 passes through the bearing and is fixedly mounted on a rotating disk 43. The sliding nuts 42 are installed on the short vertical section 23 and are threadedly connected to the double-segment threaded rod 41. By rotating the double-segment threaded rod 41 in the forward direction, the two connecting rods are brought closer to each other, and then the two side positioning wheels 24 contact the two sides of the rod respectively, providing three-point positioning and multi-directional stable support for the rod. Thus, during the rotation of large rods, the swaying of the rods is effectively limited, the risk of the rods falling off is greatly reduced, and the stability of the rods during the laser cladding process is ensured.

[0028] In practical use, the positioning fixture for laser cladding of rods according to this utility model first installs one end of the rod on the chuck, then alternately rotates the two positioning nuts 32 to precisely adjust the height of the support wheel 31 until the support wheel 31 stably and smoothly supports the bottom center position of the rod. Then, rotate the double-segment threaded rod 41 in the forward direction to bring the two connecting rods closer to each other, and then make the two side positioning wheels 24 contact the two sides of the rod respectively to provide three-point positioning and multi-directional stable support for the rod. Finally, the rod is processed.

Claims

1. A positioning fixture for laser cladding of rods, comprising a convex base, an adjustment assembly, a drive assembly, a support wheel, and two connecting rods, characterized in that: The left and right arms of the convex seat are respectively provided with sliding grooves; The support wheel is located on the top of the convex seat and is used to support the bottom of the rod. The adjustment component is installed on the top of the convex seat and connected to the bottom of the support wheel to adjust the height of the support wheel. The connecting rod is integrally connected by a long vertical section, a horizontal section and a short vertical section. The long vertical section is located on the outer side of the convex seat and a side positioning wheel is installed at its top. The horizontal section is located in the slide groove and the short vertical section is located in the inner cavity of the convex seat. The drive assembly is installed inside the convex seat and connected to two short vertical sections for adjusting the spacing between the two connecting rods.

2. The positioning fixture for laser cladding of rods according to claim 1, characterized in that: The two bottom edges of the convex seat are respectively provided with multiple mounting holes.

3. The positioning fixture for laser cladding of rods according to claim 1, characterized in that: The top of the convex seat has a through hole.

4. The positioning fixture for laser cladding of rods according to claim 3, characterized in that: The adjustment assembly includes a high-strength screw and two positioning nuts. The top end of the high-strength screw is welded and fixed to the bottom of the support wheel, and its bottom end protrudes through a through hole. The two positioning nuts are threadedly connected to the high-strength screw, and the two positioning nuts are located at the top and inner top of the convex seat, respectively.

5. The positioning fixture for laser cladding of rods according to claim 1, characterized in that: The drive assembly includes a double-segment threaded rod and two sliding nuts. The two segments of the double-segment threaded rod have opposite thread directions, and bearings are respectively fitted on the optical shafts at both ends. The two bearings are respectively installed on the left and right sides of the convex seat. The sliding nuts are installed on the short vertical segment and are threadedly connected to the double-segment threaded rod.

6. The positioning fixture for laser cladding of rods according to claim 5, characterized in that: One end of the double-segment threaded rod has its optical axis passing through a bearing and is fixedly mounted with a rotating disk.

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