Hinge polishing clamp with adjustable opening and closing angle

Abstract

The utility model relates to a hinge polishing clamp with an adjustable opening and closing angle. The hinge polishing clamp is simple in structure and can adapt to hinges with different closing gaps, and the opening angle of the hinges can be adjusted. Comprising a base, an axis positioning frame arranged on the base and two sets of hinge positioning frames symmetrically arranged at the two side ends of the axis positioning frame, a double-sliding-table linkage lead screw is further arranged on the base, and the two sets of hinge positioning frames are in sliding fit with the base through the double-sliding-table linkage lead screw. Synchronous relative sliding is carried out on the axis of the double-sliding-table linkage lead screw by taking the axis positioning frame as a midpoint; the two sets of hinge positioning frames are driven by the double-sliding-table linkage lead screw to do synchronous relative movement on the base, that is, the two sets of hinge positioning frames are synchronously close to the axis positioning frame or synchronously away from the axis positioning frame on the axis of the double-sliding-table linkage lead screw, so that the opening and closing angle of the hinge is adjusted, and the polishing requirements of hinges with different closing gaps are met. The utility model is applicable to the field of hinge processing and manufacturing.

Description

Technical Field

[0001] The utility model relates to the field of hinge processing and manufacturing, in particular to a hinge grinding fixture with adjustable opening and closing angles. Background Art

[0002] A hinge is a mechanical connection component used to connect two objects and allow them to rotate relative to each other. During production, welding equipment is used in conjunction with corresponding jigs to weld the hinge hinge and the hinge axis together to form a hinge. Finally, the welding position is polished smooth to complete the production process. In order to cope with different application scenarios, the closing gaps required for hinges are different. When polishing with polishing equipment, the hinges with different closing gaps need to be opened at different angles. In the traditional polishing process, manual operation is usually adopted, that is, the hinges are opened to a certain angle for polishing according to the polishing requirements of hinges with different closing gaps. This processing method is greatly affected by human factors, and the processing efficiency and precision are difficult to control. There are also automatic polishing methods that use fixtures and polishing equipment, but conventional fixtures cannot adjust the opening angle. The corresponding fixtures can only be replaced according to the hinges with different closing gaps. This greatly increases the production cost of the enterprise. The operation of replacing the fixtures back and forth will also affect the processing efficiency and precision. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hinge grinding fixture with adjustable opening and closing angles which has a simple structure and can adjust the opening angles of hinges with different closing gaps.

[0004] The technical solution adopted by the present invention is as follows: the present invention includes a base, an axis positioning frame arranged on the base, and two sets of hinge positioning frames symmetrically arranged on both side ends of the axis positioning frame. A double-slide linkage screw rod is also arranged on the base. The two sets of hinge positioning frames are both slidably matched with the base through the double-slide linkage screw rod, and perform synchronous relative sliding on the axis of the double-slide linkage screw rod with the axis positioning frame as the midpoint.

[0005] Furthermore, the hinge positioning frame includes a connecting plate, two groups of positioning brackets, a rotating shaft and several positioning plates. The two groups of positioning brackets are respectively arranged at the left and right ends of the connecting plate. The rotating shaft is rotatably connected between the two groups of positioning brackets. Several positioning plates are fixedly arranged on the rotating shaft. Both groups of positioning brackets are provided with a fine-tuning mechanism linked to the rotating shaft.

[0006] Furthermore, the fine-tuning mechanism includes a fine-tuning swing arm and a limit pin. A connecting hole adapted to the rotating shaft is provided at the top of the fine-tuning swing arm, and a threaded clamping block is provided on one side of the connecting hole. An arc-shaped limit groove is also provided at the bottom of the fine-tuning swing arm. One end of the limit pin is threadedly connected to the positioning bracket, and the other end is placed in the arc-shaped limit groove.

[0007] Furthermore, auxiliary sliding mechanisms are provided on the lower surfaces of the left and right sides of the connecting plate, including auxiliary slide rails and auxiliary sliders that slide with the auxiliary slide rails. The auxiliary sliders are fixedly connected to the connecting plate, and the auxiliary slide rails are fixedly connected to the base. The auxiliary slide rails are arranged parallel to the double-slide linkage screw rod.

[0008] Furthermore, the double-slide linkage screw rod includes a screw rod horizontally arranged on the base, and bearing seats fixedly connected to the base are provided on both side ends of the screw rod. A first slide and a second slide with opposite thread directions are also provided on the screw rod between the two bearing seats, and the connecting plate is fixedly connected to the first slide and the second slide respectively.

[0009] Furthermore, the end of either side of the screw rod extends out of the bearing seat, and a driving gear is provided on the end of the side.

[0010] Furthermore, the axis positioning frame includes a linear slide rail, a number of axis positioning sliders and a positioning slider that slide with the linear slide rail. The linear slide rail is arranged parallel to the hinge positioning frame, and a limit block is fixedly arranged at the end position on either side of the linear slide rail. Several of the axis positioning sliders are located between the positioning slider and the limit block.

[0011] Furthermore, a positioning shaft is detachably provided on the positioning slider, and a plurality of upper surfaces of the axis positioning sliders are provided with V-shaped placement grooves.

[0012] Finally, a first mounting groove and a second mounting groove are provided on the base in a cross-shaped arrangement. The axis positioning frame is arranged in the first mounting groove, and the double-slide linkage screw rod is arranged in the second mounting groove.

[0013] Compared with the prior art, the beneficial effect of the present invention is as follows: when the present invention is used to position the hinge that needs to be polished, the hinge shaft is placed on the axis positioning frame for limiting, and the hinge of the hinge naturally contacts the hinge positioning frames on both sides, and the two groups of hinge positioning frames are driven by the double-slide linkage screw to make synchronous relative motion on the base, that is, they are synchronously moved closer to the axis positioning frame or synchronously moved away from the axis positioning frame on the axis of the double-slide linkage screw, thereby adjusting the opening and closing angles of the hinges to meet the polishing requirements of hinges with different closing gaps, effectively replacing manual operation, and eliminating the need for frequent replacement of fixtures, thereby greatly improving production efficiency. Therefore, the present invention has a simple structure and can adjust the opening angles of the hinges to cope with hinges with different closing gaps, thereby improving the production efficiency of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a side structural schematic diagram of the utility model;

[0016] Figure 3 is a schematic structural diagram of the hinge positioning frame (partially exploded);

[0017] Figure 4 Schematic diagram of the structure of the double-slide linkage screw rod;

[0018] Figure 5 1 is a structural diagram of the axis positioning frame;

[0019] Figure 6 is a structural schematic diagram of the base;

[0020] Figure 7 1 is a schematic structural diagram of the fine-tuning swing arm;

[0021] Figure 8 is a structural diagram of the positioning slider;

[0022] Figure 9 It is a structural schematic diagram of the axis positioning slider. DETAILED DESCRIPTION

[0023] like Figures 1 to 9As shown, the present invention includes a base 1, an axis positioning frame 2 disposed on the base 1, and two sets of leaf positioning frames 3 symmetrically disposed on both sides of the axis positioning frame 2. A double-slide linkage screw rod 4 is also disposed on the base 1. Both sets of the two sets of leaf positioning frames 3 slide with the base 1 via the double-slide linkage screw rod 4 and slide synchronously relative to each other on the axis of the double-slide linkage screw rod 4 with the axis positioning frame 2 as the midpoint. The base 1 also has a first mounting groove 10 and a second mounting groove 11 arranged in a cross pattern. The axis positioning frame 2 is disposed in the first mounting groove 10, and the double-slide linkage screw rod 4 is disposed in the second mounting groove 11. When positioning the hinge that needs to be polished, the hinge's rotating shaft is placed on the axis positioning frame 2 for limiting. The hinge's hinge naturally contacts the hinge positioning frames 3 on both sides. The two groups of hinge positioning frames 3 are driven by the double-slide linkage screw rod 4 to make synchronous relative motion on the base 1, that is, they synchronously approach the axis positioning frame 3 on the axis of the double-slide linkage screw rod 4, or synchronously move away from the axis positioning frame 3, thereby adjusting the opening and closing angles of the hinge to meet the polishing requirements of hinges with different closing gaps.

[0024] In the present invention, the two sets of page positioning frames 3 include a connecting plate 30, two sets of positioning brackets 31, a rotating shaft 32 and a plurality of positioning plates 33. The two sets of positioning brackets 31 are respectively arranged at the left and right ends of the connecting plate 30. The rotating shaft 32 is rotatably connected between the two sets of positioning brackets 31. The plurality of positioning plates 33 are fixedly arranged on the rotating shaft 32. A fine-tuning mechanism linked to the rotating shaft 32 is provided on both sets of positioning brackets 31; the fine-tuning mechanism includes a fine-tuning swing arm 34 and a limit pin 35. The top of the fine-tuning swing arm 34 is provided with a connecting hole 34 adapted to the rotating shaft 32. 0, a threaded clamping block 341 is provided on one side of the connecting hole 340, and an arc-shaped limiting groove 342 is also provided at the bottom of the fine-tuning swing arm 34, one end of the limiting pin 35 is threadedly connected to the positioning bracket 31, and the other end is placed in the arc-shaped limiting groove 342; auxiliary sliding mechanisms are provided on the lower surfaces of the left and right sides of the connecting plate 30, including auxiliary slide rails 36 and auxiliary sliders 37 that slide with the auxiliary slide rails 36, the auxiliary sliders 37 are fixedly connected to the connecting plate 30, the auxiliary slide rails 36 are fixedly connected to the base 1, and the auxiliary slide rails 36 are arranged parallel to the double-slide linkage screw rod 4. The rotating shaft 32 is provided with a flat surface 38 for placing the positioning plate 33. In this embodiment, two positioning plates 33 are fixed on the flat surface 38 by screws. Under normal conditions, the positioning plates 33 in the two sets of hinge positioning brackets 3 are placed in a V-shape, adapting to the hinge and completely fitting with its surface. The tilt angle can be adjusted by rotating the fine-tuning swing arm 34, further improving the adaptability range of the utility model. The arc-shaped limit groove 342 is used to adjust the rotation amplitude. After rotating into place, the limit pin 35 is screwed into the positioning bracket 31 and pressed against the fine-tuning swing arm 34 to fix it. The base 1 is also provided with a third mounting groove 12 for accommodating the auxiliary slide rail 36. The auxiliary slide rail 36 is fixedly mounted in the third mounting groove 12 by screws.

[0025] In the present invention, the double-slide linkage screw rod 4 includes a screw rod 40 horizontally arranged on the base 1, and bearing seats 41 fixedly connected to the base 1 are sleeved on both sides of the screw rod 40. A first slide 42 and a second slide 43 with opposite thread directions are also provided on the screw rod 40 between the two bearing seats 41, and the connecting plate 30 is fixedly connected to the first slide 42 and the second slide 43 respectively; the end of either side of the screw rod 40 extends out of the bearing seat 41, and a driving gear 44 is provided on the end of the side; through the first slide 42 and the second slide 43 with opposite thread connection directions to the screw rod 40, The two groups of hinge positioning frames 3 are driven to slide synchronously relative to each other on the screw rod 40, that is, they simultaneously approach the direction of the axis positioning frame 2, or simultaneously move away from the axis positioning frame 2, in conjunction with the rotation of the fine-tuning swing arm 34, so as to achieve the opening angle of the hinge hinge and adapt to the polishing requirements of hinges with different closing gaps; when using the utility model, the driving gear 44 can be directly manually twisted to rotate the screw rod 40, thereby adjusting the position of the first slide 42 and the second slide 43, or the driving gear 44 can be connected to an external motor transmission to achieve automatic adjustment through electronic control, thereby further improving the intelligent control of the equipment.

[0026] The axis positioning frame 2 includes a linear slide 20, a plurality of axis positioning sliders and a positioning slider 21 that slide with the linear slide 20. The linear slide 20 is arranged parallel to the two-combination page positioning frame 3. A limit block 22 is fixedly provided at the end position on either side of the linear slide 20. Several of the axis positioning sliders are located between the positioning slider 21 and the limit block 22. A positioning shaft 23 is detachably provided on the positioning slider 21, and a V-shaped placement groove 24 is provided on the upper surface of several of the axis positioning sliders. In the present invention, three groups of axial positioning sliders, namely the first axial positioning slider 25, the second axial positioning slider 26 and the third axial positioning slider 27, are arranged between the limit block 22 and the positioning slider 21. A plurality of positioning holes are provided on the upper surface of the linear slide rail 20. The limit block 22, the second axial positioning slider 26 and the third axial positioning slider 27 are fixed on the linear slide rail 20 by connecting them with the corresponding positioning holes by screws. The bottom of the first axial positioning slider 25 and the positioning slider 21 are both provided with a clamping structure, which can be adjusted in position according to the specific length of the hinge placed on the axial positioning frame 2, and fixed by tightening the clamping structure by screwing in the screws.

[0027] Finally, it should be emphasized that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hinge grinding fixture with adjustable opening and closing angle, characterized by: The invention comprises a base (1), an axis positioning frame (2) arranged on the base (1), and two sets of leaf positioning frames (3) symmetrically arranged on both sides of the axis positioning frame (2); a double-slide linkage screw rod (4) is also arranged on the base (1); the two sets of the two-set leaf positioning frames (3) are slidably matched with the base (1) through the double-slide linkage screw rod (4), and synchronously slide relative to each other on the axis of the double-slide linkage screw rod (4) with the axis positioning frame (2) as the midpoint.

2. The hinge grinding fixture with adjustable opening and closing angle according to claim 1, characterized in that: The two sets of page positioning frames (3) include a connecting plate (30), two sets of positioning brackets (31), a rotating shaft (32) and a plurality of positioning plates (33). The two sets of positioning brackets (31) are respectively arranged at the left and right ends of the connecting plate (30). The rotating shaft (32) is rotatably connected between the two sets of positioning brackets (31). The plurality of positioning plates (33) are fixedly arranged on the rotating shaft (32). A fine adjustment mechanism linked to the rotating shaft (32) is provided on both sets of positioning brackets (31).

3. The hinge grinding fixture with adjustable opening and closing angle according to claim 2, characterized in that: The fine-tuning mechanism comprises a fine-tuning swing arm (34) and a limiting pin (35); a connecting hole (340) adapted to the rotating shaft (32) is provided at the top of the fine-tuning swing arm (34); a threaded pressing block (341) is provided on one side of the connecting hole (340); an arc-shaped limiting groove (342) is further provided at the bottom of the fine-tuning swing arm (34); one end of the limiting pin (35) is threadedly connected to the positioning bracket (31), and the other end is placed in the arc-shaped limiting groove (342).

4. The hinge grinding fixture with adjustable opening and closing angle according to claim 2, characterized in that: Auxiliary sliding mechanisms are provided on the lower surfaces of the left and right sides of the connecting plate (30), including auxiliary slide rails (36) and auxiliary sliders (37) that slide with the auxiliary slide rails (36). The auxiliary sliders (37) are fixedly connected to the connecting plate (30), and the auxiliary slide rails (36) are fixedly connected to the base (1). The auxiliary slide rails (36) are arranged in parallel with the double-slide linkage screw rod (4).

5. The hinge grinding fixture with adjustable opening and closing angle according to claim 2, characterized in that: The double-slide linkage screw rod (4) includes a screw rod (40) arranged horizontally on the base (1), and bearing seats (41) fixedly connected to the base (1) are sleeved on both side ends of the screw rod (40). A first slide (42) and a second slide (43) with opposite thread directions are also arranged between the two bearing seats (41) on the screw rod (40), and the connecting plate (30) is fixedly connected to the first slide (42) and the second slide (43), respectively.

6. The hinge grinding fixture with adjustable opening and closing angle according to claim 5, characterized in that: The end of either side of the screw rod (40) extends out of the bearing seat (41), and a driving gear (44) is provided on the end of the side.

7. The hinge grinding fixture with adjustable opening and closing angle according to claim 1, characterized in that: The axis positioning frame (2) includes a linear slide rail (20), a plurality of axis positioning sliders and a positioning slider (21) that slide with the linear slide rail (20), the linear slide rail (20) is arranged in parallel with the two-combination leaf positioning frame (3), and a limit block (22) is fixedly arranged at the end position on either side of the linear slide rail (20), and the plurality of axis positioning sliders are located between the positioning slider (21) and the limit block (22).

8. The hinge grinding fixture with adjustable opening and closing angle according to claim 7, characterized in that: A positioning shaft (23) is detachably provided on the positioning slider (21), and a plurality of V-shaped placement grooves (24) are provided on the upper surfaces of the axis positioning sliders.

9. The hinge grinding fixture with adjustable opening and closing angle according to claim 1, characterized in that: A first mounting groove (10) and a second mounting groove (11) are also provided on the base (1), which are distributed in a cross pattern. The axis positioning frame (2) is arranged in the first mounting groove (10), and the double-slide linkage screw rod (4) is arranged in the second mounting groove (11).

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