Positioning clamp for elbow type frame connecting piece

Abstract

The utility model discloses a positioning fixture of an elbow type frame connecting piece, which comprises a bottom plate, a vertical seat, a limiting rod and a supporting seat, the bottom of the vertical seat is connected with the top surface of the bottom plate, a supporting hole is arranged on the end surface of the vertical seat, the limiting rod is detachably connected with the vertical seat, and the supporting seat is arranged on the top surface of the bottom plate; the bottom plate, the vertical seat, the limiting rod and the supporting seat are combined for use, after the drilling machine positioning and clamping device is installed on a drilling machine, one end of an elbow type frame connecting piece is arranged outside the sleeve section of the limiting rod in a sleeving mode, the other end of the elbow type frame connecting piece is placed in the positioning groove of the supporting seat, and then positioning and clamping of the elbow type frame connecting piece are completed. And therefore, the clamping and positioning processes are simple and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely relates to a positioning fixture of elbow type frame connecting piece. BACKGROUND

[0002] In modern industrial production, steel pipe frame is widely applied in various mechanical manufacturing, construction engineering, furniture manufacturing and the like due to its high strength, light weight, easy processing and convenient disassembly, the steel pipe frame is a support structure composed of a plurality of steel pipes connected by frame connecting pieces, the frame connecting piece is an essential connecting accessory in the steel pipe frame, the steel pipe frame connecting piece can be quickly installed and disassembled and can be recycled, which is both economical and environmentally friendly.

[0003] The steel pipe frame connecting pieces are various, among which, the elbow type connecting piece is a commonly used connecting piece in the steel pipe frame connection, in the preparation process of the elbow type frame connecting piece, drilling treatment is needed, before drilling, the pipe is generally clamped and then operated, in the process of clamping the pipe, since the elbow structure to be processed is a relatively irregular shape, a plurality of clamping tools need to be prepared, and the commonly used vice and flat mouthed pliers are also difficult to clamp and fix, so that the clamping difficulty is extremely great in actual work, and a large amount of manpower is wasted due to continuous debugging of equipment in the processing process. SUMMARY

[0004] To solve the above problems, the utility model provides a positioning fixture of elbow type frame connecting piece which is simple in structure and convenient to clamp and position.

[0005] To achieve the above purpose, the utility model provides a positioning fixture of elbow type frame connecting piece, which comprises a bottom plate, a stand, a limiting rod and a supporting seat, the bottom plate is a square plate, two sides of the plate surface of the bottom plate are symmetrically provided with mounting holes with internal thread structures, a stand perpendicular to the bottom plate is fixedly installed on the top surface of the left side of the bottom plate, the stand is a rectangular plate structure, a circular supporting hole penetrating the thickness direction is formed in the upper part of the vertical surface of the stand.

[0006] The limiting rod is a cylindrical structure and is divided into a locking segment and a sleeve segment, the locking segment is a threaded shaft with a smaller shaft diameter than the supporting hole, a locking ring with a larger shaft diameter than the supporting hole is arranged at the joint of the locking segment and the sleeve segment, the front segment of the sleeve segment is matched with the inner cavity size of the elbow type frame connecting piece in shape, a limiting ring is arranged on the sleeve segment, the distance between the limiting ring and the end of the sleeve segment is the same as the length of the straight pipe segment of the elbow type frame connecting piece, and a clearance slot penetrating the two sides for inserting a drill bit during drilling is formed on the circumferential surface of the front segment of the sleeve segment, the clearance slot is a rounded rectangular hole.

[0007] The limiting rod is detachably connected with the stand, the locking section of the limiting rod passes through the supporting hole of the stand, the sleeve section is towards the midpoint of the bottom plate, then the locking cap arranged on the locking section is rotated to be locked and connected with the locking ring on the limiting rod on the stand, and the opening of the allowance slot of the limiting rod is arranged upwards.

[0008] The supporting seat is arranged in connection with the top surface of the bottom plate and below the sleeve section of the limiting rod, the supporting seat is of "L" type structure, the height of the horizontal end top surface is different from the height of the limiting rod by the thickness of the single side wall of the elbow type frame connecting piece, the horizontal end is towards one side of the limiting rod, and the distance between the vertical end and the sleeve section is the sum of the length of the straight section and the length of the elbow section of the elbow type frame connecting piece.

[0009] As the optimization scheme of the present application, the supporting seat comprises a positioning plate and a connecting plate, the connecting plate is fixedly connected with the bottom plate, and the top surface of the positioning plate is provided with a positioning slot.

[0010] Further, in order to adapt to the elbow type connecting pieces of different hole diameters, a sliding groove parallel to the stand is formed in the top surface of the connecting plate, positioning bolts are arranged on the groove edges of the sliding groove, the positioning plate is arranged in the sliding groove, the top surface of the positioning plate is provided with a positioning slot, and the positioning slot is a semicircular truncated cone slot structure with a large opening towards one side of the limiting rod.

[0011] As the optimization scheme of the present application, in order to improve the stability, a threaded locking hole penetrating the supporting hole is formed in the top end surface of the stand, and a locking bolt is arranged in the threaded locking hole.

[0012] As the optimization scheme of the present application, in order to adapt to the elbow type connecting pieces of different hole diameters, the locking section and the sleeve section of the limiting rod are of split type structure, a connecting screw hole with an internal thread structure is formed in the end surface of the locking section, a connecting bolt matched with the connecting screw hole of the locking section is arranged on the end of the sleeve section, and the two are detachably connected through the structure, so that sleeve sections of different diameters are replaced to adapt to the elbow type connecting pieces of different hole diameters.

[0013] Beneficial effects: ①. The bottom plate, the stand, the limiting rod and the supporting seat are combined to be used, one end of the elbow type frame connecting piece is sleeved outside the sleeve section of the limiting rod, the other end is placed in the positioning slot of the supporting seat after the bottom plate is installed on the drilling machine, the positioning and clamping of the elbow type frame connecting piece are completed, and drilling can be directly performed, so that the clamping and positioning process is simple and convenient.

[0014] ②. The locking section and the sleeve section of the limiting rod are of split type structure, different sizes of sleeve sections can be replaced to adapt to the elbow type connecting pieces of different hole diameters, the practicability of the utility model is effectively improved, and the production cost of the production enterprise is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the present invention in Embodiment 1.

[0016] Figure 2 for Figure 1 A structural diagram showing the positioning and clamping of the elbow-shaped frame connector.

[0017] Figure 3 for Figure 1 A schematic diagram of the middle limit rod.

[0018] Figure 4 for Figure 1 Structural diagram of the base plate and the upright.

[0019] Figure 5 This is a schematic diagram of the structure of the present invention in Embodiment 2.

[0020] Figure 6 for Figure 5 A structural diagram showing the positioning and clamping of the elbow-type frame connector.

[0021] Figure 7 for Figure 5 A schematic diagram of the middle limit rod.

[0022] Figure 8 for Figure 5 A schematic diagram of the structure of the central support.

[0023] In the diagram: 1. Base plate; 2. Stand; 3. Limiting rod; 4. Support base; 5. Support hole; 6. Locking section; 7. Sleeve section; 8. Locking cap; 9. Locking ring; 10. Relief groove; 11. Limiting ring; 12. Connecting plate; 13. Locking bolt; 14. Connecting screw hole; 15. Connecting bolt; 16. Elbow-type frame connector; 17. Positioning plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the accompanying drawings are all in a very simplified form, using non-precise ratios, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Example 1

[0026] like Figures 1-4As shown in the embodiment, the positioning clamp of the elbow type frame connector comprises a bottom plate 1, a vertical seat 2, a limiting rod 3 and a support seat 4, as shown in Figure 1 and Figure 2 , the bottom plate 1 is a square plate, and two symmetrically arranged mounting holes with internal thread structure are formed on the plate surface of the bottom plate 1, a vertical seat 2 perpendicular to the bottom plate 1 is fixedly installed on the left side of the top surface of the bottom plate 1, the vertical seat 2 is a rectangular plate structure, and a circular support hole 5 penetrating through the thickness direction is formed in the middle upper part of the vertical surface of the vertical seat 2.

[0027] As shown in Figure 1 and Figure 4 , the limiting rod 3 is a cylindrical structure, which is divided into a locking section 6 and a sleeve section 7, the locking section 6 is a threaded shaft with a shaft diameter smaller than that of the support hole 5, a locking ring 9 with a shaft diameter larger than that of the support hole 5 is arranged at the joint between the locking section 6 and the sleeve section 7, the front section of the sleeve section 7 matches the size of the inner cavity of the elbow type frame connector 16, a limiting ring 11 is arranged on the sleeve section 7, the distance between the limiting ring 11 and the end of the sleeve section 7 is the same as the length of the straight pipe section of the elbow type frame connector 16, and a gap slot 10 penetrating through both sides for the drill bit to be inserted during drilling is formed on the circumferential surface of the front section of the sleeve section 7, the gap slot 10 is a round rectangular hole.

[0028] As can be seen from Figure 1 and Figure 2 , the limiting rod 3 is detachably connected with the vertical seat 2, the locking section 6 of the limiting rod 3 passes through the support hole 5 of the vertical seat 2, the sleeve section 7 faces the midpoint of the bottom plate 1, and the locking cap 8 arranged on the locking section 6 is rotated to be locked and connected with the locking ring 9 on the limiting rod 3 on the vertical seat 2, and the opening of the gap slot 10 is arranged upward.

[0029] As shown in Figure 1 and Figure 3 , the support seat 4 is an "L" type structure, the height of the horizontal end top surface is different from the height of the limiting rod 3 by one single side wall thickness of the elbow type frame connector 16, the horizontal end faces one side of the limiting rod 3, and the distance between the vertical end and the sleeve section 7 is the sum of one half of the length of the straight pipe section and the length of the elbow section of the elbow type frame connector 16.

[0030] In use, as shown in Figure 2 , after the device is installed on the drilling machine through the mounting holes and mounting bolts of the bottom plate 1, the straight pipe section of the elbow type frame connector 16 is inserted into the sleeve section 7 of the limiting rod 3 after being aligned, so that the two are connected in sleeve, and are positioned by the limiting ring 11, at this time, the other straight pipe section is positioned and supported by the support seat 4, and drilling work can be carried out. Embodiment 2

[0031] As shown in Figures 4-8 , the specific structure and implementation manner are the same as those shown in embodiment 1, and the difference lies in that, as shown inFigure 5 and Figure 6 The top end face of the stand 2 is provided with a through support hole 5 and a threaded locking hole, and the threaded locking hole is provided with a locking bolt 13.

[0032] Referring to Figure 5 and Figure 8 The support base comprises a positioning plate 17 and a connecting plate 12, the connecting plate 12 is fixedly connected with the bottom plate 1, the top face of the connecting plate 12 is provided with a sliding groove parallel to the stand 2, the groove edge of the sliding groove is provided with a positioning bolt, the positioning plate 17 is arranged in the sliding groove, the top face of the positioning plate 17 is provided with a positioning groove, and the positioning groove of the positioning plate 17 is a semi-conical groove structure, and the large opening of the semi-conical groove structure faces one side of the limiting rod 3.

[0033] From Figure 7 It can be seen that the locking section 6 and the sleeve section 7 of the limiting rod 3 are in a split structure, the end face of the locking section 6 is provided with a connecting screw hole 14 with an internal thread structure, the end of the sleeve section 7 is provided with a connecting bolt 15 matched with the connecting screw hole 14 of the locking section 6, and the two are detachably connected through the structure, so that different diameters of the sleeve section 7 can be replaced to adapt to different aperture elbow type connecting pieces.

[0034] In use, after the device is installed on a drilling machine through the mounting hole and the mounting bolt of the bottom plate 1, as shown in Figure 6 , one end of the elbow type frame connecting piece 16 is sleeved outside the sleeve section 7 of the limiting rod 3 and is clamped and positioned by the limiting ring 11, the other end is placed in the positioning groove of the support base 4, the locking bolt 13 is used to enhance the stability of the limiting rod 3, and then the drilling work can be performed, when different aperture elbow type frame connecting pieces 16 need to be positioned and clamped, the corresponding sleeve section 7 can be replaced to adapt, then the position of the positioning plate 4 on the connecting plate 12 is adjusted, the groove wall of the positioning groove is ensured to be in contact with the outside of the elbow type frame connecting piece 16, and the support base completes the positioning and support.

[0035] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A positioning fixture of elbow type frame connector, comprising a base plate (1), a vertical seat (2), a limiting rod (3) and a supporting seat (4), characterized in that: The bottom plate (1) is a square plate, and two symmetric mounting holes with internal thread structure are arranged on the plate surface of the bottom plate (1); a vertical seat (2) perpendicular to the bottom plate (1) is fixedly arranged on the top surface of the left side of the bottom plate (1); the vertical seat (2) is a rectangular plate structure, and a circular support hole (5) penetrating through the thickness direction is arranged in the upper middle part of the vertical surface of the vertical seat (2). The limiting rod (3) is a cylindrical structure, and is divided into a locking section (6) and a sleeve section (7); the locking section (6) is a threaded shaft with a smaller shaft diameter than the support hole (5); a locking ring (9) with a larger shaft diameter than the support hole (5) is arranged at the joint of the locking section (6) and the sleeve section (7); the front section of the sleeve section (7) is matched with the inner cavity size of the elbow type frame connecting piece (16); a limiting ring (11) is arranged on the sleeve section (7); the distance between the limiting ring (11) and the end of the sleeve section (7) is the same as the length of the straight pipe section of the elbow type frame connecting piece (16); and a gap slot (10) penetrating through both sides for inserting a drill bit when drilling is arranged on the peripheral surface of the front section of the sleeve section (7); the gap slot (10) is a round rectangular hole. The limiting rod (3) is detachably connected with the vertical seat (2); the locking section (6) of the limiting rod (3) penetrates through the support hole (5) of the vertical seat (2); and the sleeve section (7) is towards the midpoint of the bottom plate (1), and the opening of the gap slot (10) is arranged upwards. The support seat (4) is connected with the top surface of the bottom plate (1) and is arranged below the side of the sleeve section (7) of the limiting rod (3).

2. A positioning jig for a bend type frame connector according to claim 1, characterized in that: The support seat (4) is an "L" type structure, the height difference between the top surface of the horizontal end and the height of the limiting rod (3) is one single side wall thickness of the elbow type frame connecting piece (16), the horizontal end is towards one side of the limiting rod (3), and the distance between the vertical end and the sleeve section (7) is the sum of one half of the length of the straight pipe section and the length of the elbow section of the elbow type frame connecting piece (16).

3. A positioning jig for a bend type frame connector according to claim 1, characterized in that: The support seat (4) comprises a connecting plate (12) and a positioning plate (17); the connecting plate (12) is fixedly connected with the bottom plate (1); and the top surface of the positioning plate (17) is provided with a positioning groove.

4. A positioning jig for a bend type frame connector according to claim 3, characterized in that: A sliding groove parallel to the vertical seat (2) is arranged on the top surface of the connecting plate (12); a positioning bolt is arranged on the groove edge of the sliding groove; the positioning plate (17) is arranged in the sliding groove; and the top surface of the positioning plate (17) is provided with a positioning groove which is a semicircular table-shaped groove structure with a large opening towards one side of the limiting rod (3).

5. A positioning jig for a bend type frame connector according to claim 1, characterized in that: A threaded locking hole penetrating through the support hole (5) is arranged on the top end surface of the vertical seat (2); and a locking bolt (13) is arranged in the threaded locking hole.

6. A positioning jig for a bend type frame connector according to claim 1 or 3, characterized in that: The locking section (6) and the sleeve section (7) of the limiting rod (3) are a split type structure; a connecting screw hole (14) with an internal thread structure is arranged on the end surface of the locking section (6); a connecting bolt (15) matched with the connecting screw hole (14) of the locking section (6) is arranged on the end of the sleeve section (7); the two are detachably connected through the structure, and different diameters of the sleeve section (7) are used to replace to adapt to workpieces with different hole diameters.

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