Clamp tool based on corner connector machining

Abstract

The utility model relates to a clamp frock based on corner connector processing for the positioning and clamping of corner connector, and the corner connector comprises a vertical unit and a horizontal unit connected perpendicularly, the horizontal unit comprises a linear part and an inclined part distributed oppositely, the frock comprises a positioning mechanism and a limiting adjusting mechanism, the positioning mechanism comprises a bottom plate and a backrest, a pressing plate, a triangular push block and an adjusting screw installed on the bottom plate, a U-shaped limiting groove is arranged in the backrest, the triangular push block can be fixed on the backrest elastically and is located at one side of the U-shaped limiting groove, the included angle between the side wall of the corner connector contacting the triangular push block and the opposite side of the U-shaped limiting groove is equal to the included angle between the inclined part and the linear part, the pressing plate is fixed on the bottom plate through the adjusting screw, the pressing plate abuts against one side of the corner connector away from the bottom plate, the horizontal unit is located in the U-shaped limiting groove, and the vertical unit is fixed through the limiting adjusting mechanism. Compared with the prior art, the utility model has the advantages of flexible adjustment, high positioning and clamping precision and the like.

Description

Technical Field

[0001] This utility model relates to the field of fixture structures, and in particular to a fixture tooling based on corner connector processing. Background Technology

[0002] Angle connectors are connecting parts used to support structures, distribute loads, and improve overall stability. Commonly used fixtures for machining angle connectors include three-jaw and four-jaw chucks on machine tools, vises, and T-shaped worktables.

[0003] For example, the utility model with publication number CN202411912U discloses a four-axis fixture for machining track links, which includes a bridge plate, a rotary cylinder, a pressure plate bracket, a rotary cylinder pressure head, a spring seat, a pressure plate, an upper support, an upper pressure foot, a backing piece, a lower support, a lower pressure foot, a lever cylinder pressure plate, a lever cylinder, a pin, and a spring. The rotary cylinder, pressure plate bracket, spring seat, and upper support are located on the bridge plate. One end of the rotary cylinder pressure head is connected to the pressure plate bracket. The pressure plate is connected to the rotary cylinder pressure head. The upper support is connected to the pressure plate through a pin. The upper pressure foot is located between the upper support and the backing piece. The lower pressure foot is located above the lower support. The lever cylinder pressure plate is connected to the lower pressure foot. The lever cylinder is located between the lever cylinder pressure plate and the bridge plate. The spring abuts against the pressure plate.

[0004] Although the aforementioned fixtures are standardized general-purpose fixtures that can adapt to the machining needs of various workpieces within a certain range, their application still has certain limitations: general-purpose fixtures require special adjustments and positioning operations when adapting to different workpieces, increasing production time and reducing production efficiency. General-purpose fixtures may be unable to meet the positioning accuracy and clamping stability requirements of specific workpieces. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, which requires adjustment of the clamping and positioning structure for corner connectors that do not meet specifications, resulting in poor flexibility and affecting the processing efficiency of corner connectors, and to provide a fixture for corner connector processing.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A fixture for machining corner connectors is provided for positioning and clamping corner connectors. The corner connector includes vertical and horizontal units connected perpendicularly to each other. The horizontal unit includes straight and inclined portions distributed opposite to each other. The fixture includes a positioning mechanism and a limit adjustment mechanism. The positioning mechanism includes a base plate and a backing plate, a pressure plate, a triangular push block, and an adjusting screw mounted on the base plate. The backing plate has a U-shaped limit groove. The triangular push block is elastically telescopically fixed on the backing plate and located on one side of the U-shaped limit groove. The angle between the side wall of the triangular push block contacting the corner connector and the opposite side of the U-shaped limit groove is equal to the angle between the inclined portion and the straight portion. The pressure plate is fixed to the base plate by the adjusting screw and abuts against the side of the corner connector away from the base plate. The horizontal unit is located in the U-shaped limit groove, and the vertical unit is fixed by the limit adjustment mechanism.

[0008] Preferably, the triangular push block includes a triangular block, a fixed rod, and a spring; one end of the fixed rod is fixed to the triangular block, the spring is sleeved on the fixed rod, the fixed rod is slidably fixed to the backrest, and the spring is compressed after the side wall of the triangular block abuts against the inclined part.

[0009] Preferably, the backing includes a clamping section, a limiting section, and a positioning section connected in sequence;

[0010] The clamping section has a stepped hole on the side opposite to the positioning section. The spring is located in the stepped hole. The fixing rod passes through the stepped hole. The triangular block abuts against the end of the spring away from the stepped hole. The three sides of the inner sides of the clamping section, the limiting section and the positioning section are perpendicular to each other and form a U-shaped structure.

[0011] Preferably, the pressure plate has an L-shaped structure, including an abutment section and a pressing section that are perpendicularly connected to each other. The pressing section is provided with a threaded hole that mates with an adjusting screw. The distance between the pressing section and the base plate corresponds to the thickness of the horizontal unit.

[0012] Preferably, the base plate is provided with a groove, and side plates are provided on both sides of the groove to form a limiting notch that cooperates with the vertical unit.

[0013] Preferably, a first limiting bolt is vertically provided at the bottom of the slot, and a second limiting bolt is horizontally provided on the side plate.

[0014] Preferably, there are multiple second limiting bolts, and each second limiting bolt is evenly distributed in the vertical direction.

[0015] Preferably, there are multiple positioning mechanisms, and each positioning mechanism is evenly distributed on the base plate.

[0016] Preferably, the base plate is provided with four-axis connecting discs symmetrically at both ends.

[0017] Preferably, one side of the four-axis connecting plate is provided with a limiting groove that mates with the end of the base plate, and the end of the base plate is fixed in the limiting groove by bolts. Compared with the prior art, this utility model has the following advantages:

[0018] (1) This solution utilizes one side of the U-shaped limiting groove on the back of the machine to position the straight section. Based on the thrust of the triangular push block on the inclined section after compression, the corner connector is pushed into the limiting groove to complete the positioning and planar clamping. The pressure plate completes the three-dimensional clamping, making the operation convenient. It simplifies the work of installing the workpiece and changing the work station, eliminating the need for drawing lines and alignment, thereby shortening the auxiliary time of the process, improving the positioning and clamping efficiency, and providing flexible adjustment, which significantly improves the overall processing efficiency of the corner connector.

[0019] (2) In this scheme, the side wall of the triangular push block is matched with the inclined part of the corner connector. After the corner connector is placed into the limiting groove, the spring force is used to provide a force along the inclined part for the corner connector, thereby quickly and accurately positioning the workpiece and clamping it, ensuring the stability of the workpiece during the processing and ensuring the processing accuracy of the workpiece.

[0020] (3) This solution has multiple positioning mechanisms on the base plate, which can clamp multiple corner connectors at one time. Compared with the traditional clamping structure, it significantly improves the production efficiency of the workpiece. Attached Figure Description

[0021] Figure 1 A schematic diagram of the structure of the clamping fixture for holding the angle connector provided by this utility model;

[0022] Figure 2 This is a schematic diagram of the fixture provided by this utility model;

[0023] Figure 3 A schematic diagram of the corner connector provided by this utility model;

[0024] Figure 4 Enlarged structural view of the fixture provided by this utility model from a first-view perspective;

[0025] Figure 5 A magnified view of the fixture provided by this utility model from a second perspective;

[0026] In the diagram: 1. Angle connector, 2. Backrest, 3. Pressure plate, 4. Triangular push block, 5. Adjusting screw, 6. Base plate, 7. Spring, 8. Four-axis connecting plate, 9. Side plate; 101. Straight section, 102. Inclined section, 201. U-shaped limiting groove, 21. Clamping section, 22. Limiting section, 23. Positioning section, 61. Groove, 62. First limiting bolt, 63. Second limiting bolt, 81. Limiting groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] Example 1

[0034] like Figures 1 to 3As shown, this embodiment provides a fixture for corner connector processing, used for positioning and clamping corner connectors. The corner connector 1 includes a vertical unit and a horizontal unit connected perpendicularly to each other. The horizontal unit includes a straight part 101 and an inclined part 102 distributed opposite to each other. The fixture includes a positioning mechanism and a limit adjustment mechanism. The positioning mechanism includes a base plate 6 and a support 2, a pressure plate 3, a triangular push block 4, and an adjusting screw 5 mounted on the base plate 6. The support 2 is provided with a U-shaped limit groove 201. The triangular push block 4 can be elastically telescopically fixed on the support 2 and is located on one side of the U-shaped limit groove 201. The angle between the side wall of the triangular push block 4 contacting the corner connector 1 and the opposite side of the U-shaped limit groove 201 is equal to the angle between the inclined part 102 and the straight part 101. The pressure plate 3 is fixed on the base plate 6 by the adjusting screw 5. The pressure plate 3 abuts against the side of the corner connector 1 away from the base plate 6. The horizontal unit is located in the U-shaped limit groove 201, and the vertical unit is fixed by the limit adjustment mechanism.

[0035] Working principle: The horizontal unit of the corner connector 1 is placed in the U-shaped limiting groove 201 of the backrest 2. The straight part 101 abuts against one side of the U-shaped limiting groove 201, and the inclined part 102 abuts against the side wall of the triangular push block 4. The triangular push block 4 retracts and provides a force to abut the horizontal unit in the U-shaped limiting groove 201. The pressure plate 3 is pressed above the horizontal unit by tightening the adjusting screw 5 to complete the positioning and clamping of the horizontal unit. The vertical unit is clamped in conjunction with the limiting adjustment mechanism to complete the positioning and clamping of the corner connector 1.

[0036] The straight section 101 is positioned using one side of the U-shaped limiting groove 201 of the support plate 2. Based on the thrust of the triangular push block 4 on the inclined section after compression, the corner connector is pushed into the limiting groove to complete the positioning and planar clamping. The three-dimensional clamping is completed with the help of the pressure plate, which is convenient to operate. It simplifies the work of installing workpieces and changing work stations, eliminating the need for drawing lines and alignment, thereby shortening the auxiliary time of the process and improving the positioning and clamping efficiency.

[0037] Preferred implementation methods, such as Figure 4 As shown, the triangular push block 4 includes a triangular block, a fixed rod, and a spring 7; one end of the fixed rod is fixed to the triangular block, the spring 7 is sleeved on the fixed rod, the fixed rod is slidably fixed to the backrest 2, and the spring 7 is in a compressed state after the side wall of the triangular block abuts against the inclined part 102.

[0038] The side wall of the triangular push block 4 is fitted with the inclined part of the corner connector. After the corner connector is placed into the limiting groove, the spring force provides a force along the inclined part to the corner connector, thereby quickly and accurately positioning and clamping the workpiece, ensuring the stability of the workpiece during the processing and ensuring the processing accuracy of the workpiece.

[0039] In this embodiment, the support 2 includes a clamping section 21, a limiting section 22, and a positioning section 23 connected in sequence;

[0040] The clamping section 21 has a stepped hole on the side opposite to the positioning section 23. The spring 7 is located in the stepped hole, the fixing rod passes through the stepped hole, and the triangular block abuts against the end of the spring 7 away from the stepped hole. The three sides of the clamping section 21, the limiting section 22 and the positioning section 23 are perpendicular to each other and form a U-shaped structure.

[0041] The positioning section 23, which mates with the straight section 101 of the corner connector, positions one side of the corner connector, allowing the corner connector to move along the positioning section 23. The inclined section 102 mates with the side wall of the triangular block, and when the corner connector approaches the limiting section 22, it squeezes the triangular block and compresses the spring. When the front end of the corner connector abuts against the limiting section 22, the positioning is completed. Using the spring's restoring force, the triangular block squeezes and clamps the corner connector, completing the horizontal positioning and clamping of the corner connector. The operation is convenient, and no additional adjustment is required for corner connectors of different specifications.

[0042] In this embodiment, the pressure plate 3 has an L-shaped structure, including an abutment section and a clamping section that are perpendicularly connected to each other. The clamping section has a threaded hole that mates with the adjusting screw. The distance between the clamping section and the base plate 6 corresponds to the thickness of the horizontal unit. The horizontal unit of the angle connector passes through the opening below the clamping section, first performing positioning and limiting in the horizontal plane, and then tightening it with the adjusting screw to clamp the pressure plate 3 vertically based on the clamping section.

[0043] In this embodiment, as Figure 5 As shown, the base plate 6 has a slot 61, and side plates 9 are provided on both sides of the slot 61, forming a limiting notch that cooperates with the vertical unit. A first limiting bolt 62 is vertically provided at the bottom of the slot 61, and a second limiting bolt 63 is horizontally provided on the side plates 9. There are two second limiting bolts 63, which are evenly distributed in the vertical direction. By clamping the periphery of the vertical unit of the workpiece with the first and second limiting bolts, it can provide auxiliary clamping for the diagonal connector, improving the clamping stability of the diagonal connector.

[0044] In this embodiment, there are multiple positioning mechanisms, which are evenly distributed on the base plate 6. The multiple positioning mechanisms on the base plate allow for the simultaneous clamping of multiple corner connectors, significantly improving workpiece production efficiency compared to traditional clamping structures.

[0045] In this embodiment, four-axis connecting discs 8 are symmetrically provided at both ends of the base plate 6. A limiting groove 81 that mates with the end of the base plate 6 is provided on one side of the four-axis connecting disc 8. The end of the base plate 6 is fixed in the limiting groove 81 by bolts.

[0046] Specifically, this embodiment provides a tooling fixture for milling and drilling corner connectors. The base plate 3 has threaded holes to connect the four-axis connecting disc 8, the support plate 2, and other positioning and clamping components. During fixing, the workpiece is pressed against the inner side of the support plate 2. A spring 7 pushes a triangular pusher 4, providing an upward force to press the workpiece against the inner side of the limiting hole in the support plate 2, restricting the horizontal movement freedom of the corner connector. The pressure plate 3, through adjusting screws 5, presses the corner connector downwards, constraining its vertical movement freedom. Hex socket head cap screws on the side plate 7 assist in clamping the workpiece. This specially designed positioning and clamping system, based on precise matching of the workpiece's shape and dimensions, allows for the simultaneous clamping of four workpieces, significantly improving production efficiency. This fixture ensures the machining accuracy of the workpiece, enabling rapid and accurate positioning and clamping, and guaranteeing the stability of the workpiece during processing.

[0047] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A fixture for machining corner connectors, used for positioning and clamping corner connectors, wherein the corner connector (1) comprises vertically connected vertical units and horizontal units, the horizontal units comprising relatively distributed straight portions (101) and inclined portions (102), characterized in that, The tooling includes a positioning mechanism and a limit adjustment mechanism. The positioning mechanism includes a base plate (6) and a support (2), a pressure plate (3), a triangular push block (4), and an adjusting screw (5) mounted on the base plate (6). The support (2) is provided with a U-shaped limit groove (201). The triangular push block (4) is elastically telescopically fixed on the support (2) and located on one side of the U-shaped limit groove (201). The angle between the side wall of the contact angle connector (1) of the triangular push block (4) and the opposite side of the U-shaped limit groove (201) is equal to the angle between the inclined part (102) and the straight part (101). The pressure plate (3) is fixed on the base plate (6) by the adjusting screw (5). The pressure plate (3) abuts against the side of the angle connector (1) away from the base plate (6). The horizontal unit is located in the U-shaped limit groove (201). The vertical unit is fixed by the limit adjustment mechanism.

2. The fixture tooling for corner connector machining according to claim 1, characterized in that, The triangular push block (4) includes a triangular block, a fixed rod, and a spring (7); one end of the fixed rod is fixed to the triangular block, the spring (7) is sleeved on the fixed rod, the fixed rod is slidably fixed to the backrest (2), and the spring (7) is in a compressed state after the side wall of the triangular block abuts against the inclined part (102).

3. The fixture tooling for corner connector machining according to claim 2, characterized in that, The backing (2) includes a clamping section (21), a limiting section (22), and a positioning section (23) connected in sequence; The clamping section (21) has a stepped hole on the side opposite to the positioning section (23). The spring (7) is located in the stepped hole. The fixing rod passes through the stepped hole. The triangular block abuts against the end of the spring (7) away from the stepped hole. The three sides of the inner sides of the clamping section (21), the limiting section (22) and the positioning section (23) are perpendicular to each other and form a U-shaped structure.

4. The fixture tooling for corner connector machining according to claim 1, characterized in that, The pressure plate (3) has an L-shaped structure, including a contact section and a pressing section that are perpendicularly connected to each other. The pressing section is provided with a threaded hole that cooperates with the adjusting screw. The distance between the pressing section and the base plate (6) corresponds to the thickness of the horizontal unit.

5. A fixture for machining corner connectors according to claim 1, characterized in that, The base plate (6) is provided with a groove (61), and side plates (9) are provided on both sides of the groove (61) to form a limiting notch that cooperates with the vertical unit.

6. A fixture for machining corner connectors according to claim 5, characterized in that, The bottom of the slot (61) is vertically provided with a first limiting bolt (62), and the side plate (9) is horizontally provided with a second limiting bolt (63).

7. A fixture for machining corner connectors according to claim 6, characterized in that, There are multiple second limiting bolts (63), and each second limiting bolt (63) is evenly distributed in the vertical direction.

8. A fixture for machining corner connectors according to claim 1, characterized in that, The number of positioning mechanisms is multiple, and each positioning mechanism is evenly distributed on the base plate (6).

9. A fixture for machining corner connectors according to claim 1, characterized in that, The base plate (6) is provided with four-axis connecting discs (8) symmetrically at both ends.

10. A fixture for machining corner connectors according to claim 9, characterized in that, The four-axis connecting plate (8) has a limiting groove (81) on one side that matches the end of the base plate (6). The end of the base plate (6) is fixed in the limiting groove (81) by bolts.

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