Hardware fixing clamp

Abstract

The utility model relates to machining equipment, in particular to a hardware fixing clamp. A hardware fixing clamp comprises a bottom plate, side clamping seats are installed on the two sides of the bottom plate, two first bottom clamping seats are installed on the lower sides of the two ends of the bottom plate, second bottom clamping seats are arranged on the inner sides of the first bottom clamping seats, two obliquely-installed upper clamping seats are arranged at the upper end of the bottom plate, and two supporting seats used for supporting are installed between the upper clamping seats. And a middle clamping seat is mounted between the two bottom clamping seats II. The bottom plate of the hardware fixing clamp serves as a mounting base body, the side clamping bases symmetrically distributed on the two sides of the bottom plate transversely clamp a workpiece, the first bottom clamping base on the lower sides of the two ends and the second bottom clamping base on the inner sides of the two ends form a bottom two-way clamping area, and the upper clamping base obliquely arranged at the upper end exerts oblique pressing force on the workpiece through the inclination angle; the supporting base located between the upper clamping bases provides auxiliary supporting for the top of a workpiece, and the middle clamping base arranged between the two second bottom clamping bases cooperates with the bottom clamping base set to achieve positioning and clamping of the center area of the bottom of the workpiece.

Description

Technical Field

[0001] This utility model relates to processing equipment, and in particular to a hardware fixing clamp. Background Technology

[0002] Traditional hardware fixtures mostly employ unidirectional clamping or manual positioning, which suffers from poor clamping stability and insufficient adaptability to complex workpieces. This is especially true for multi-curved or asymmetrical workpieces, where uneven clamping point distribution and displacement due to machining forces can easily occur, leading to decreased machining accuracy. Furthermore, existing fixtures require repeated adjustments to positioning elements when switching between workpieces of different sizes, which is cumbersome and makes it difficult to guarantee repeatability, severely impacting machining efficiency. Therefore, there is an urgent need to develop a fixed fixture with multi-directional synchronous clamping and adaptive adjustment capabilities to overcome these technical bottlenecks.

[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a hardware fastener that would have greater industrial value. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a hardware fixing clamp.

[0005] This utility model discloses a hardware fixing clamp, including a base plate, side clamps installed on both sides of the base plate, two bottom clamps one installed on the lower side of both ends of the base plate, bottom clamps two inside the bottom clamps one, two upper clamps installed obliquely at the upper end of the base plate, two support seats for support installed between the upper clamps, and an intermediate clamp installed between the two bottom clamps two.

[0006] The base plate of this hardware fixing fixture serves as the mounting base. The side clamps symmetrically distributed on both sides clamp the workpiece laterally. The bottom clamps at both ends and the bottom clamps on the inner side form a two-way clamping area at the bottom. The upper clamps arranged obliquely at the upper end apply oblique clamping force to the workpiece through the tilt angle. The support seat located between the upper clamps provides auxiliary support for the top of the workpiece. The intermediate clamp between the two bottom clamps works in conjunction with the bottom clamp assembly to achieve positioning and clamping of the center area of ​​the bottom of the workpiece. The workpiece is fixed in three dimensions through the cooperation of the multi-directional clamping mechanism.

[0007] Furthermore, the side clamp includes a bracket fixedly installed with the base plate. A support plate is fixed to the top of the bracket. A cylinder is movably installed on the lower side of the tail end of the support plate via a shaft. A connecting rod is movably installed on the top of the telescopic rod of the cylinder via a bearing seat and a shaft. The top of the connecting rod is movably installed with the tail end of the pressure plate via a bearing seat and a shaft. The pressure plate is movably installed on the upper edge of the support plate via a connecting plate and a shaft. A support block is located at the front end of the support plate. A pressure head that mates with the support block is located on the lower side of the front end of the support plate.

[0008] The bracket is fixed on the base plate, and the support plate at its top serves as the clamping base. The cylinder drives the connecting rod to swing around the axis through telescopic movement, which drives the tail end of the pressure plate to rotate around the axis of the upper edge of the support plate, causing the pressure head at the front end of the pressure plate to move downward and form a clamping surface with the support block at the front end of the support plate. The reciprocating motion of the cylinder realizes the clamping and releasing of the pressure head pair on the workpiece.

[0009] Furthermore, the base clamp includes a slide rail fixedly installed with the base plate, and the bracket is installed on the slide rail by a slider. The bracket is fixedly connected to the telescopic rod of the push cylinder.

[0010] The slide rail is fixed to the base plate. The second bracket slides with the slide rail through the slider at its bottom. When the extension rod of the push cylinder extends or retracts, it drives the second bracket to move linearly along the slide rail. The overall clamping range of the base clamp is adaptively adjusted by adjusting the sliding position of the second bracket.

[0011] Furthermore, a support plate is fixed to the top of the second bracket, and a cylinder is movably mounted on the lower side of the tail end of the second support plate via a shaft. A connecting rod is movably mounted on the top of the telescopic rod of the second cylinder via a bearing seat and a shaft. The top of the connecting rod is movably mounted to the tail end of the second pressure plate via a bearing seat and a shaft. The second pressure plate is movably mounted on the upper edge of the second support plate via a connecting plate and a shaft. A clamping cylinder is fixed to the inner side of the second support plate, and a top block is fixed on the telescopic rod of the clamping cylinder. The top of the second pressure plate has a pressure head.

[0012] Support plate two is fixed to the top of bracket two. Cylinder two extends and retracts to drive connecting rod two to swing around the axis, causing the tail end of pressure plate two to rotate around the axis of the upper edge of support plate two, so that the pressure head two at the front end of pressure plate two moves downward. At the same time, the clamping cylinder on the inner side of support plate two pushes the top block to move towards the workpiece. Through the coordinated action of pressure head two and top block, clamping force is applied to the workpiece from the vertical and lateral directions respectively, realizing bidirectional clamping.

[0013] Furthermore, the structure of the bottom clamp is consistent with that of the side clamp.

[0014] The working process of the bottom clamp seat is the same as that of the side clamp seat. Its bracket is fixed by the base plate. The cylinder extension and retraction drive the connecting rod to drive the pressure plate to rotate around the axis of the upper edge of the support plate, so that the pressure head moves downward and forms a clamping surface with the support block. The vertical clamping or loosening of the workpiece by the pressure head is achieved by the reciprocating action of the cylinder. The clamping principle and component linkage method are exactly the same as those of the side clamp seat.

[0015] Furthermore, the upper clamp and the middle clamp are structurally consistent with the side clamp.

[0016] The working process of the upper clamp and the middle clamp is the same as that of the side clamp. Their support plates are fixed to the top of the bracket of the corresponding clamp. The cylinder drives the connecting rod through the telescopic rod to drive the pressure plate to rotate around the axis, so that the pressure head moves downward to form a vertical clamping force. At the same time, the clamping cylinder on the inner side of the support plate pushes the top block to move laterally, and works with the pressure head to complete the bidirectional clamping. The upper clamp is located at the top of the workpiece, and the middle clamp is located in the middle of the workpiece. The two achieve synchronous clamping functions at different positions through the same structure. The clamping action is completely consistent with that of the side clamp.

[0017] Furthermore, the height of the upper clamp is higher than the height of the middle clamp.

[0018] Both the upper clamp and the middle clamp adopt the same structure as the side clamp. The support plate of the upper clamp is installed on the top area of ​​the workpiece by a bracket, while the support plate of the middle clamp is fixed at the corresponding height in the middle of the workpiece. Both are driven by a cylinder to drive the connecting rod to rotate the pressure plate around the axis, so that the pressure head applies downward pressure. At the same time, the clamping cylinder pushes the top block to move laterally, forming a two-way clamping force in both vertical and lateral directions. Due to the difference in installation height, the upper clamp and the middle clamp simultaneously complete the same clamping action at different positions of the workpiece, ensuring clamping stability.

[0019] Furthermore, the support base includes a bracket three fixed to the base plate, a support plate three fixed on the bracket three, a support block three with a higher outer edge and a lower inner edge at the top of the support plate three, and a vertical guide plate fixed to the tail end of the support plate three, with the inner side of the top of the guide plate being inclined.

[0020] The support bracket three is fixed to the base plate, and the support plate three installed on it has a support block three with a higher outer side and a lower inner side at its top, which is used to position the bottom surface of the workpiece; the tail end of the support plate three is fixed with a vertical guide plate, and the inclined structure on the inner side of its top end guides the workpiece to slide in laterally. When the external pressure head presses down, the bottom surface of the workpiece is in contact with the inclined surface of the support block three to achieve self-positioning. The guide plate restricts lateral displacement through the vertical section and assists in guidance through the inclined section, ensuring that the workpiece is vertically and stably in contact with the support block three during the clamping process, thus completing precise clamping and positioning.

[0021] By means of the above solution, the present invention has at least the following advantages: This hardware fixing fixture adopts a unified structure of side clamps, upper clamps, middle clamps and support seats. Each clamp is driven by a cylinder to form a vertical clamping force with the pressure head. At the same time, it is combined with the transverse top block of the clamping cylinder to achieve bidirectional clamping. The modular design significantly reduces processing and maintenance costs. The inclined structure on the inner side of the guide plate of the support seat, combined with the three outer high and inner low inclined surfaces of the support block, realizes the self-positioning and sliding guidance of the workpiece, avoiding manual intervention. The differentiated layout of the height of each clamp and the synchronous drive control enable the top, middle and side clamping units to work together, which not only ensures the uniformity of multi-directional force, but also adapts to the high-precision positioning requirements of workpieces of different sizes. The overall structure is simplified.

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this invention are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show a certain embodiment of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is the utility model Figure 1 Top view;

[0026] Figure 3 This is a schematic diagram of the side clamp of this utility model;

[0027] Figure 4 This is a structural schematic diagram of the bottom clamp of this utility model;

[0028] Figure 5 This is the utility model Figure 4 The main view;

[0029] Figure 6 This is a structural schematic diagram of the support base of this utility model;

[0030] In the diagram: 1. Base plate; 2. Side clamp; 3. Bottom clamp one; 4. Bottom clamp two; 5. Upper clamp; 6. Support seat; 7. Intermediate clamp; 8. Bracket one; 9. Support plate one; 10. Cylinder one; 11. Connecting rod one; 12. Pressure plate one; 13. Support block one; 14. Pressure head one; 15. Slide rail; 16. Bracket two; 17. Push cylinder; 18. Support plate two; 19. Cylinder two; 20. Connecting rod two; 21. Pressure plate two; 22. Tightening cylinder; 23. Top block; 24. Pressure head two; 25. Bracket three; 26. Support plate three; 27. Support block three; 28. Guide plate. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] See Figure 1 and Figure 2This hardware fixing fixture has side clamps 2 on both sides of the base plate 1 to fix the lateral position of the workpiece with vertical clamping force. The bottom clamps 3 at both ends and the inner bottom clamp 4 clamp the edge of the workpiece from the bottom and the lower side, respectively. The obliquely installed upper clamp 5 applies downward pressure to the top of the workpiece. It cooperates with the support block and guide plate of the middle support 6 to realize the self-positioning and vertical limitation of the workpiece. The middle clamp 7 works with the bottom clamp 4 to clamp the middle section of the workpiece in both directions. The multi-level clamps: side clamps 2, bottom clamps 3, bottom clamps 4, upper clamps 5 and middle clamps 7, form multi-directional clamping force through the layout of different angles and heights. With the guide structure of the support 6, it ensures that the workpiece is quickly positioned and the force is uniform. It can meet the full-wrap fixing requirements of irregular hardware parts. The structure is compact and stable.

[0033] See Figure 3 When the side clamp 2 is working, the cylinder 10 drives the telescopic rod to push the connecting rod 11, which in turn drives the pressure plate 12 to rotate around the axis of the upper edge of the support plate 9, causing the pressure head 14 to move downward and form a clamping surface with the support block 13. The clamping force is amplified by lever principle. The support block 13 fixes the outer side of the workpiece, and the pressure head 14 achieves adaptive contact through the swing of the pressure plate 12, ensuring uniform contact of the clamping surface. The hinge design of the cylinder 10 and the connecting rod 11 converts the linear thrust into a rotary clamping action, which is compact and the clamping force is controllable. The rigid cooperation between the support block 13 and the pressure head 14 eliminates the risk of workpiece displacement, while the axial movable connection of the pressure plate 12 reduces friction loss.

[0034] See Figure 4 and Figure 5 The push cylinder 17 pushes the bracket 16 to slide horizontally along the slide rail 15 via the telescopic rod. The low friction between the slider and the slide rail enables linear adjustment of the clamping position. After the bracket 16 moves to the target position with the stroke of the cylinder, it fixes or releases the bottom of the workpiece. The precision guide design of the slide rail 15 and the slider ensures smooth clamping action and high repeatability. The direct drive structure of the push cylinder 17 simplifies the transmission path, improves the clamping response speed and thrust stability, and the modular sliding mechanism adapts to the flexible adjustment needs of workpieces of different sizes.

[0035] When the support bracket 216 is working, the clamping cylinder 22 drives the top block 23 to extend forward and press against the side of the workpiece to form a preliminary fixation. The cylinder 219 synchronously drives the telescopic rod to drive the connecting rod 20 to push the pressure plate 21 to rotate around the upper axis of the support plate 218, so that the pressure head 24 presses down to clamp the top of the workpiece. The top block 23 and the pressure head 24 form a bidirectional clamping surface. At the same time, the cylinder 219 achieves high-stability locking through the lever force amplification of the connecting rod 20. The clamping cylinder 22 and the cylinder 219 are independently controlled to achieve multi-directional coordinated clamping of lateral positioning and top clamping, which is suitable for irregularly shaped workpieces. The hinge design of the connecting rod 20 and the pressure plate 21 reduces motion friction and improves pressing accuracy. The adjustable stroke of the top block 23 and the rigid linkage of the pressure head 24 make the clamping force evenly distributed.

[0036] Bottom clamp 24 adopts the same structure as side clamp 2. The symmetrical arrangement ensures uniform clamping force, the modular structure simplifies debugging, and the clamping rigidity is good.

[0037] Both clamp 5 and intermediate clamp 7 replicate the structure of side clamp 2, with three-way coordinated clamping: the push cylinder drives the slide rail bracket to move horizontally to the upper, middle and side surfaces of the workpiece, the clamping cylinder pushes the top block to press against the corresponding surface of the workpiece, and the synchronous linkage pressure plate presses down to form multi-directional rigid clamping.

[0038] The upper clamp 5 and the middle clamp 7 adopt the same structure as the side clamp 2, but the layered design has different heights, which respectively press the upper and middle positions of the workpiece.

[0039] See Figure 6 The support seat 6 is fixed to the base plate 1 by the bracket 25. The support block 27 with the outer side higher than the inner side at the top of the support plate 26 forms a stepped bearing surface. The tail guide plate 28 uses the inclined structure on the inner side of the top to guide the workpiece to be vertically positioned: when the workpiece enters, the inclined guide surface automatically corrects the offset, the stepped surface of the support block 27 fits the bottom surface of the workpiece, and the guide plate 28 restricts lateral displacement.

[0040] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0041] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0042] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hardware fastener, comprising a base plate (1), characterized in that: Side clamps (2) are installed on both sides of the base plate (1). Two bottom clamps (3) are installed on the lower side of both ends of the base plate (1). The inner side of the bottom clamps (3) is the bottom clamp (4). There are two upper clamps (5) installed at the upper end of the base plate (1). Two support seats (6) are installed between the upper clamps (5). An intermediate clamp (7) is installed between the two bottom clamps (4).

2. The hardware fastener according to claim 1, characterized in that: The side clamp (2) includes a bracket (8) fixedly installed with the base plate (1). The top of the bracket (8) is fixed with a support plate (9). The lower side of the tail end of the support plate (9) is movably installed with a cylinder (10) via a shaft. The top of the telescopic rod of the cylinder (10) is movably installed with a connecting rod (11) via a bearing seat and a shaft. The top of the connecting rod (11) is movably installed with the tail end of the pressure plate (12) via a bearing seat and a shaft. The pressure plate (12) is movably installed on the upper edge of the support plate (9) via a connecting plate and a shaft. The front end of the support plate (9) has a support block (13). The lower side of the front end of the support plate (9) has a pressure head (14) that cooperates with the support block (13).

3. The hardware fastener according to claim 1, characterized in that: The first base (3) includes a slide rail (15) fixedly installed on the base plate (1), and the second bracket (16) is installed on the slide rail (15) by a slider. The second bracket (16) is fixedly connected to the telescopic rod of the push cylinder (17).

4. A hardware fastener according to claim 3, characterized in that: Support plate 2 (18) is fixed at the top of bracket 2 (16). Cylinder 2 (19) is movably installed on the lower side of the tail end of support plate 2 (18) via a shaft. Connecting rod 2 (20) is movably installed on the top of telescopic rod of cylinder 2 (19) via bearing seat and shaft. Connecting rod 2 (20) is movably installed on the tail end of pressure plate 2 (21) via bearing seat and shaft. Pressure plate 2 (21) is movably installed on the upper edge of support plate 2 (18) via connecting plate and shaft. Tightening cylinder 22 is fixed on the inner side of support plate 2 (18). Top block 23 is fixed on the telescopic rod of tightening cylinder 2 (22). Pressure head 2 (24) is located at the top of pressure plate 2 (21).

5. A hardware fastener according to claim 1 or 2, characterized in that: The structure of the bottom clamp (4) is the same as that of the side clamp (2).

6. A hardware fastener according to claim 1 or 2, characterized in that: The upper clamp (5) and the middle clamp (7) are structurally consistent with the side clamp (2).

7. A hardware fastener according to claim 6, characterized in that: The height of the upper clamp (5) is higher than the height of the middle clamp (7).

8. A hardware fastener according to claim 1, characterized in that: The support base (6) includes a bracket three (25) fixed to the base plate (1), a support plate three (26) fixed on the bracket three (25), a support block three (27) with the outer side higher than the inner side at the top of the support plate three (26), and a vertical guide plate (28) fixed at the tail end of the support plate three (26), with the inner side of the top of the guide plate (28) being inclined.

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