Angle-adjustable hardware machining clamp

By combining the control mechanism and the automatic spring reset function, the hardware processing fixture can be quickly adjusted in angle and stably fixed, solving the problem of long time consumption in the existing technology and improving work efficiency and accuracy.

CN224560536UActive Publication Date: 2026-07-28DENGZHOU LIANGPINJIANG PRECISION HARDWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DENGZHOU LIANGPINJIANG PRECISION HARDWARE CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing hardware processing fixtures take a long time to adjust angles frequently, which affects work efficiency.

Method used

The system employs a control mechanism that uses the combination of a pressing cylinder and a wedge block to achieve rapid angle adjustment and fixation of the upper and lower connecting rods. Combined with the automatic spring reset function, the operation process is simplified.

Benefits of technology

It improves the working efficiency and processing accuracy of hardware processing fixtures, and ensures the stability and safety after angle adjustment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224560536U_ABST
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Abstract

The utility model discloses an angle adjustable hardware processing clamp belongs to machining technical field, this hardware processing clamp includes base, sets up the support seat above the base, the ball head seat of fixed mounting on the bottom of support seat with the top of base, rotates and installs the rotating ball in the ball head seat inside, through the cooperation of above each device, through the setting of control mechanism, when needing to adjust support seat angle, press press cylinder, make the inclined block slide, its inclined plane promotes control block to move in the sliding slot, and then drives the tooth column to slide in the fixed cylinder, until tooth column and the pawl disengage engagement, at this moment can adjust the angle between upper connecting rod and lower connecting rod, after adjusting, loosen press cylinder, and the tooth column reversely moves in the fixed cylinder, and reengages with the pawl, thereby completes the fixation of upper connecting rod and lower connecting rod, makes it stably keep in the angle after adjusting, and this operation is simple and quick, and improves the overall working efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically an angle-adjustable hardware processing fixture. Background Technology

[0002] In the mechanical manufacturing process, a device used to fix the workpiece in place to ensure that it is in the correct position for construction or inspection is called a clamp. In a broader sense, any device used in the process flow to quickly, conveniently and safely install workpieces can be called a fixture, such as welding fixtures, inspection fixtures, assembly fixtures and machine tool fixtures. Among these fixtures, machine tool fixtures are the most common and are usually simply referred to as fixtures.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN220006870U) discloses an adjustable-angle positioning fixture for processing hardware parts, comprising a base, with a first fixing claw fixedly disposed at each of the four corners of the top of the base, a first rotating ball disposed at the inner end of each of the four first fixing claws, a first connecting rod fixedly disposed at the top of each of the four first rotating balls, a second connecting rod comprising at the top of the first connecting rod, a second rotating ball comprising at the top of the second connecting rod, and a second fixing claw comprising at the outer side of the second rotating ball.

[0004] In the aforementioned patent, a groove is provided on the first connecting rod to allow the second connecting rod to be placed at the same position as the first connecting rod. A through hole is also provided to facilitate the connection with bolts. A nut is installed on the other end of the bolt to clamp the first and second connecting rods, preventing them from moving. When the fixture is adjusted to a suitable angle, it can be fixed with bolts and nuts to prevent movement during use, which could lead to accidents during processing and scrap the workpiece. However, each angle adjustment requires unscrewing and re-screwing the bolts, and this repeated unscrewing and re-screwing process consumes time. Especially when the fixture angle is frequently adjusted, this time consumption accumulates and may reduce overall work efficiency.

[0005] Therefore, this utility model provides an angle-adjustable hardware processing fixture to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This utility model provides an angle-adjustable hardware processing fixture, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an angle-adjustable hardware processing fixture, which includes a base, a support seat disposed above the base, a ball head seat fixedly installed on the bottom of the support seat and the top of the base, a rotating ball rotatably installed inside the ball head seat, an upper connecting rod and a lower connecting rod respectively fixedly installed on the two rotating balls, and a control mechanism disposed on the upper connecting rod and the lower connecting rod for controlling the rotation of the upper connecting rod and the lower connecting rod.

[0008] The control mechanism includes locking teeth fixedly installed on both sides of the upper connecting rod, control cylinders fixedly installed on both sides of the lower connecting rod, a fixed cylinder fixedly installed inside the control cylinder, a toothed column slidably installed inside the fixed cylinder, a pressing cylinder slidably installed inside the control cylinder, an inclined block fixedly installed on the inner wall of the pressing cylinder, a control block slidably installed inside the fixed cylinder, and a sliding groove formed inside the toothed column for the control block to slide.

[0009] As a preferred technical solution of this application, the end of the upper connecting rod away from the support base is rotatably connected to the end of the lower connecting rod away from the base, the locking teeth mesh with the toothed column, and the inclined surface of the inclined block is in contact with the inclined surface of the control block.

[0010] As a preferred technical solution of this application, a spring is provided inside the control cylinder, one end of the spring is fixedly connected to the end of the toothed column away from the locking tooth, and the other end of the spring is fixedly connected to the inner wall of one side of the pressing cylinder.

[0011] As a preferred technical solution of this application, the support base has a movable groove inside, and a clamp is slidably connected to the top of the support base through the movable groove.

[0012] As a preferred technical solution of this application, a fixing block is fixedly connected to the bottom of the support base, and a bidirectional lead screw is rotatably connected between the two fixing blocks.

[0013] As a preferred technical solution of this application, the bidirectional lead screw passes through the two clamping plates, and the interior of the clamping plates is provided with threaded holes adapted to the bidirectional lead screw.

[0014] As a preferred technical solution of this application, one end of the bidirectional lead screw passes through one of the fixed blocks and is fixedly connected to a handwheel.

[0015] (III) Beneficial Effects This utility model has a simple structure and is easy to use. Through the setting of the control mechanism, when it is necessary to adjust the angle of the support seat, press the pressing cylinder to make the inclined block slide. Its inclined surface pushes the control block to move in the slide groove, which in turn drives the toothed column to slide in the fixed cylinder until the toothed column disengages from the locking teeth. At this time, the angle between the upper and lower connecting rods can be adjusted. After the adjustment is completed, release the pressing cylinder, and the toothed column moves in the opposite direction in the fixed cylinder and re-engages with the locking teeth, thereby completing the fixation of the upper and lower connecting rods and keeping them stably at the adjusted angle. This operation is simple and quick, improving the overall work efficiency. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of an angle-adjustable hardware processing fixture. Figure 1 ; Figure 2 A schematic diagram of the structure of an angle-adjustable hardware processing fixture. Figure 2 ; Figure 3 This is a cross-sectional schematic diagram of the control cylinder in a hardware processing fixture with adjustable angle; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the installation of the chuck teeth in a hardware processing fixture with adjustable angle.

[0017] In the picture: 1. Base; 2. Support seat; 3. Ball head seat; 4. Rotating ball; 5. Upper connecting rod; 6. Lower connecting rod; 7. Clamping tooth; 8. Control cylinder; 9. Fixed cylinder; 10. Tooth column; 11. Pressing cylinder; 12. Inclined block; 13. Control block; 14. Slide groove; 15. Spring; 16. Moving groove; 17. Clamping plate; 18. Fixed block; 19. Double-acting lead screw; 20. Handwheel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides an angle-adjustable hardware processing fixture, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the hardware processing fixture includes a base 1, a support seat 2 disposed above the base 1, a ball head seat 3 fixedly installed on the bottom of the support seat 2 and the top of the base 1, a rotating ball 4 rotatably installed inside the ball head seat 3, an upper connecting rod 5 and a lower connecting rod 6 respectively fixedly installed on the two rotating balls 4, and a control mechanism disposed on the upper connecting rod 5 and the lower connecting rod 6 for controlling the rotation of the upper connecting rod 5 and the lower connecting rod 6.

[0020] The control mechanism includes a locking tooth 7 fixedly installed on both sides of the upper connecting rod 5, a control cylinder 8 fixedly installed on both sides of the lower connecting rod 6, a fixed cylinder 9 fixedly installed inside the control cylinder 8, a toothed column 10 slidably installed inside the fixed cylinder 9, a pressing cylinder 11 slidably installed inside the control cylinder 8, an inclined block 12 fixedly installed on the inner wall of the pressing cylinder 11, a control block 13 slidably installed inside the fixed cylinder 9, and a sliding groove 14 opened inside the toothed column 10 for the control block 13 to slide.

[0021] The end of the upper connecting rod 5 away from the support seat 2 is rotatably connected to the end of the lower connecting rod 6 away from the base 1. The locking tooth 7 meshes with the tooth post 10, and the inclined surface of the inclined block 12 fits against the inclined surface of the control block 13.

[0022] When using this hardware processing fixture, the base 1 is first placed in a suitable position. Multiple upper connecting rods 5 and lower connecting rods 6 are arranged between the base 1 and the support 2, distributed at the four corners. When the angle of the support 2 needs to be adjusted, the pressing cylinder 11 is pressed, causing the inclined block 12 to slide. The inclined surface of the inclined block 12 pushes the control block 13 to slide in the slide groove 14, thereby driving the toothed column 10 to slide in the fixed cylinder 9 until the toothed column 10 and the locking tooth 7 are no longer engaged. This allows the angle between the upper connecting rod 5 and the lower connecting rod 6 to be adjusted. After the adjustment is completed, the pressing cylinder 11 is released, and the toothed column 10 moves in the opposite direction inside the fixed cylinder 9 until it re-engages with the locking tooth 7, thus completing the fixation between the upper connecting rod 5 and the lower connecting rod 6. This allows the upper connecting rod 5 and the lower connecting rod 6 to be stably maintained at the adjusted angle, thereby realizing the angle adjustment during hardware processing. Therefore, the angle of the hardware processing fixture can be flexibly adjusted according to actual processing needs, improving processing efficiency and processing accuracy.

[0023] Furthermore, to facilitate the automatic reset of the pressing cylinder 11, such as... Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a spring 15 is installed inside the control cylinder 8. One end of the spring 15 is fixedly connected to the end of the toothed column 10 away from the toothed tooth 7, and the other end of the spring 15 is fixedly connected to the inner wall of one side of the pressing cylinder 11.

[0024] When this hardware processing fixture is in use, pressing the pressing cylinder 11 compresses the spring 15, providing a certain resistance and making the operation more stable. When the pressing cylinder 11 is released, the spring 15 releases the stored energy, pushing the pressing cylinder 11 to automatically reset. At the same time, it drives the toothed column 10 to move in the opposite direction in the fixed cylinder 9, quickly re-engaging with the locking tooth 7, thereby completing the rapid fixation between the upper connecting rod 5 and the lower connecting rod 6. This simplifies the operation process, improves work efficiency, and ensures the stability of the hardware processing fixture after angle adjustment, further improving processing accuracy and safety.

[0025] In order to facilitate the clamping of hardware parts of different sizes, such as Figure 1 and Figure 2 As shown, the support base 2 has a movable groove 16 inside, and the top of the support base 2 is slidably connected to the clamp 17 through the movable groove 16.

[0026] The bottom of the support base 2 is fixedly connected to a fixing block 18, and a two-way lead screw 19 is rotatably connected between the two fixing blocks 18.

[0027] The double-acting lead screw 19 passes through two clamping plates 17, and the interior of the clamping plates 17 has threaded holes that are compatible with the double-acting lead screw 19.

[0028] One end of the double-acting lead screw 19 passes through one of the fixed blocks 18 and is fixedly connected to a handwheel 20.

[0029] When in use, this hardware processing fixture can rotate the handwheel 20 to drive the bidirectional lead screw 19 to rotate between the two fixed blocks 18. Since the bidirectional lead screw 19 is adapted to the threaded holes inside the two clamping plates 17, the two clamping plates 17 will move in opposite or relative directions along the moving groove 16 during the rotation of the bidirectional lead screw 19. This facilitates the clamping or loosening of the hardware placed on the top of the support base 2, improving the applicability of the hardware processing fixture and enabling it to clamp hardware of different sizes. Moreover, the clamping operation can be achieved by manually rotating the handwheel 20, which is simple and quick to operate and further improves work efficiency.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An angle-adjustable hardware processing fixture, characterized in that: The hardware processing fixture includes a base (1), a support seat (2) disposed above the base (1), a ball head seat (3) fixedly installed on the bottom of the support seat (2) and the top of the base (1), a rotating ball (4) rotatably installed inside the ball head seat (3), an upper connecting rod (5) and a lower connecting rod (6) respectively fixedly installed on the two rotating balls (4), and a control mechanism disposed on the upper connecting rod (5) and the lower connecting rod (6) for controlling the rotation of the upper connecting rod (5) and the lower connecting rod (6); The control mechanism includes a locking tooth (7) fixedly installed on both sides of the upper connecting rod (5), a control cylinder (8) fixedly installed on both sides of the lower connecting rod (6), a fixed cylinder (9) fixedly installed inside the control cylinder (8), a toothed column (10) slidably installed inside the fixed cylinder (9), a pressing cylinder (11) slidably installed inside the control cylinder (8), an inclined block (12) fixedly installed on the inner wall of the pressing cylinder (11), a control block (13) slidably installed inside the fixed cylinder (9), and a sliding groove (14) opened inside the toothed column (10) for the control block (13) to slide.

2. The angle-adjustable hardware processing fixture according to claim 1, characterized in that: The end of the upper connecting rod (5) away from the support base (2) is rotatably connected to the end of the lower connecting rod (6) away from the base (1), the locking tooth (7) meshes with the tooth column (10), and the inclined surface of the inclined block (12) is in contact with the inclined surface of the control block (13).

3. The angle-adjustable hardware processing fixture according to claim 1, characterized in that: The control cylinder (8) is equipped with a spring (15). One end of the spring (15) is fixedly connected to the end of the toothed column (10) away from the tooth (7), and the other end of the spring (15) is fixedly connected to the inner wall of one side of the pressing cylinder (11).

4. The angle-adjustable hardware processing fixture according to claim 1, characterized in that: The support base (2) has a movable groove (16) inside, and a clamping plate (17) is slidably connected to the top of the support base (2) through the movable groove (16).

5. The angle-adjustable hardware processing fixture according to claim 4, characterized in that: The bottom of the support base (2) is fixedly connected to a fixing block (18), and a two-way screw (19) is rotatably connected between the two fixing blocks (18).

6. The angle-adjustable hardware processing fixture according to claim 5, characterized in that: The bidirectional lead screw (19) passes through the two clamping plates (17), and the interior of the clamping plates (17) is provided with threaded holes that are compatible with the bidirectional lead screw (19).

7. The angle-adjustable hardware processing fixture according to claim 6, characterized in that: One end of the bidirectional lead screw (19) passes through one of the fixed blocks (18) and is fixedly connected to a handwheel (20).