Tool jig capable of preventing misoperation
By introducing pressure sensors and automated control systems into the tooling fixtures, stable workpiece positioning and barrier functions are achieved, solving the problem of misoperation when the workpiece is not stably positioned and improving machining accuracy and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN JIECHENG MASCH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-12
AI Technical Summary
Existing tooling and fixtures lack anti-misoperation functions, which leads to decreased accuracy and safety hazards when the workpiece is not stably positioned.
A tooling fixture including a base, a worktable, a clamping mechanism, a pressure sensor, and an automated control system was designed. The pressure sensor detects the workpiece positioning stability and controls the pressure of the clamping plate within a preset range, forming a barrier to prevent misoperation.
This ensures stable workpiece positioning, improves machining accuracy, enhances safety and ease of operation, and reduces misoperation and equipment failure.
Smart Images
Figure CN224223723U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tooling and fixture technology, and in particular to a tooling and fixture that can prevent misoperation. Background Technology
[0002] Tooling fixtures, as indispensable auxiliary tools in industrial production, play a crucial role in many stages of product processing, assembly, and inspection. They are devices specifically designed and manufactured for particular production tasks, with their core function being the precise fixing, positioning, and support of workpieces, ensuring that the workpieces maintain a stable and accurate position during processing. By using tooling fixtures appropriately, production efficiency can be significantly improved, the difficulty and error of manual operation can be reduced, and product consistency and quality stability can be effectively guaranteed. They are a vital guarantee for achieving efficient and precise production in modern industry.
[0003] In current industrial production practices, various tooling fixtures are widely used. However, most tooling fixtures on the market currently have certain design limitations. These fixtures mainly focus on the functions of fixing and positioning workpieces to meet basic production needs, but rarely consider preventing misoperation. They usually only have simple mechanical structures for clamping and positioning workpieces, lacking mechanisms to prevent misoperation that may occur during the operation process. This design deficiency means that in actual production, operators may cause a series of problems due to negligence or improper operation.
[0004] Because existing tooling fixtures lack features to prevent misoperation, in actual production scenarios, it is highly likely that the machining device will begin processing before the workpiece is fully positioned and stable. When the workpiece is not completely and stably positioned on the tooling fixture, starting the machining device will cause the workpiece to shift or shake during processing, resulting in decreased machining accuracy and frequent problems such as product dimensional deviations and substandard surface quality. Utility Model Content
[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a tooling fixture that can prevent misoperation. The workpiece can only be processed after it is positioned stably, thus preventing misoperation.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A tooling fixture that prevents misoperation includes a base, a worktable on the base, and clamping mechanisms evenly distributed in a ring around the worktable. Each clamping mechanism includes a first telescopic component, a clamping plate on the movable part of the first telescopic component facing the worktable, and a pressure sensor between the clamping plate and the movable part of the first telescopic component. The pressure sensor controls the extension and retraction of the first telescopic component through a control unit until the pressure detected by the pressure sensor is within a preset pressure range.
[0008] The base has a movable frame on one side of the workbench, the movable frame is slidably connected to the base, the workbench is provided with a second telescopic component for controlling the movement of the movable frame, the base has a fixed frame fixedly provided on the side of the workbench away from the movable frame, the top of the movable frame is provided with multiple spring telescopic rods, and the top of the fixed frame is provided with multiple receiving slots adapted to the spring telescopic rods.
[0009] When the first telescopic component is activated, the control unit receives a defense signal and controls the second telescopic component to extend, and the spring telescopic rod engages in the receiving groove to form a barrier. When all the pressure sensors detect that the pressure is within the preset pressure range, the control unit receives a release signal, the second telescopic component retracts, and the spring telescopic rod disengages from the receiving groove, thus releasing the barrier.
[0010] Preferably, both the movable frame and the fixed frame have an opening in the middle for the first telescopic component to move.
[0011] Preferably, the spring telescopic rod includes a fixed tube, and a movable rod is slidably connected to the inner wall of the fixed tube. The end of the movable rod is connected to the bottom of the fixed tube by a return spring.
[0012] Preferably, an arc-shaped guide block is provided at one end of the movable rod facing the receiving groove, and a flexible buffer pad is adhered to the outer surface of the arc-shaped guide block.
[0013] Preferably, the deformable distance of the return spring is not less than 10 centimeters.
[0014] Preferably, both the first telescopic component and the second telescopic component are configured as pneumatic cylinders or electric cylinders.
[0015] This utility model has the following beneficial effects:
[0016] I. Preventing Misoperation and Ensuring Processing Safety: In traditional tooling and fixture operations, operator negligence or accidental contact may lead to processing operations starting before the workpiece is stably positioned, potentially causing safety accidents or workpiece damage. This misoperation-preventing tooling and fixture effectively avoids this problem through its unique design. When the first telescopic component is activated to clamp the workpiece, the control unit receives a defense signal and immediately controls the extension of the second telescopic component, causing the spring telescopic rod on the movable frame to engage with the receiving groove of the fixed frame, forming a barrier. This barrier isolates the workbench area from the external operating space. If the workpiece is not fully positioned (i.e., the pressure detected by the pressure sensor is not within the preset pressure range), the operator cannot perform processing operations, thus preventing misoperation, greatly improving the safety of the processing process, and ensuring the personal safety of the operator and the normal operation of the equipment.
[0017] II. Ensuring Stable Workpiece Positioning and Improving Machining Accuracy: The stability of workpiece positioning directly affects machining accuracy. This fixture achieves precise control of workpiece clamping pressure through the cooperation of pressure sensors and a control unit. A clamping plate is positioned with the movable part of the first telescopic assembly facing the worktable. A pressure sensor is placed between the clamping plate and the movable part of the first telescopic assembly. The pressure sensor, controlled by the control unit, extends and retracts the first telescopic assembly until the pressure detected by the pressure sensor is within a preset pressure range. Only when all pressure sensors detect pressure within the preset pressure range will the control unit receive a release signal, causing the second telescopic assembly to retract, driving the spring telescopic rod out of the receiving groove, removing the obstruction barrier, and allowing machining operations to proceed. This design ensures that the workpiece is in a stable and accurate positioning state before machining, avoiding machining errors caused by inaccurate workpiece positioning, thereby improving machining accuracy and guaranteeing product quality.
[0018] III. Automated Control for Enhanced Operational Convenience and Efficiency: This tooling fixture employs an automated control system, achieving automatic linkage between workpiece positioning and the barrier. From the activation of the first telescopic component, the control unit automatically receives the defense signal and controls the second telescopic component to extend and form the barrier. Once the workpiece is stably positioned, the control unit automatically receives the release signal and controls the second telescopic component to retract and release the barrier. The entire process eliminates the need for manual operation of setting and releasing the barrier, significantly improving operational convenience. Simultaneously, automated control reduces waiting time and the possibility of operational errors, increasing work efficiency and making the production process smoother and more efficient.
[0019] IV. Design of movable openings: Both the movable frame and the fixed frame have movable openings in the middle for the first telescopic component to move. This design ensures that the first telescopic component is not obstructed by the movable frame and the fixed frame during the telescopic process, ensuring that the clamping mechanism can clamp the workpiece normally and smoothly. It also avoids equipment failure caused by structural interference and ensures the stable operation of the device.
[0020] V. Spring Telescopic Rod Structure: The spring telescopic rod includes a fixed tube, with a movable rod slidably connected to the inner wall of the fixed tube. The end of the movable rod is connected to the bottom of the fixed tube via a return spring. This structure gives the spring telescopic rod excellent telescopic performance and buffering capacity, allowing for smooth operation during insertion and disengagement from the receiving groove. This reduces noise and vibration caused by impact and extends the service life of the spring telescopic rod. Furthermore, an arc-shaped guide block is provided at the end of the movable rod facing the receiving groove. A flexible buffer pad is adhered to the outer surface of the arc-shaped guide block. The arc-shaped guide block facilitates the smooth insertion of the spring telescopic rod into the receiving groove, while the flexible buffer pad further reduces the impact force during insertion, protecting all components of the device. Attached Figure Description
[0021] 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 some embodiments 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.
[0022] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present utility model.
[0023] Figure 2 This is a cross-sectional view of the spring telescopic rod according to the first embodiment of the present invention.
[0024] Figure 3 This is a cross-sectional view of the spring telescopic rod according to the second embodiment of the present invention.
[0025] In the diagram: 1. Base; 2. Workbench; 301. First telescopic assembly; 302. Clamping plate; 303. Pressure sensor; 4. Control unit; 501. Movable frame; 502. Second telescopic assembly; 503. Fixed frame; 504. Spring telescopic rod; 541. Fixed tube; 542. Movable rod; 543. Return spring; 544. Arc-shaped guide block; 545. Flexible buffer pad; 505. Receiving groove. Detailed Implementation
[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] First embodiment
[0028] like Figure 1 As shown, a tooling fixture that prevents misoperation includes a base 1, a worktable 2 on the base 1, and clamping mechanisms evenly distributed in a ring around the worktable 2. Each clamping mechanism includes a first telescopic component 301. A clamping plate 302 is provided on the movable part of the first telescopic component 301 facing the worktable 2. A pressure sensor 303 is provided between the clamping plate 302 and the movable part of the first telescopic component 301. The pressure sensor 303 controls the extension and retraction of the first telescopic component 301 via a control unit 4 until the pressure detected by the pressure sensor 303 is within a preset pressure range. A movable frame 501 is provided on one side of the worktable 2 on the base 1, and the movable frame 501 is slidably connected to the base 1. A second telescopic component 502 is provided on the worktable 2 to control the movement of the movable frame 501. A fixed frame 503 is fixedly provided on the side of the worktable 2 away from the movable frame 501 on the base 1. Multiple spring telescopic rods 504 are provided on the top of the movable frame 501, and multiple receiving slots 505 adapted to the spring telescopic rods 504 are provided on the top of the fixed frame 503.
[0029] like Figure 1 As shown, when the workpiece needs to be processed, the first telescopic component 301 in the clamping mechanism is activated first. The movable part of the first telescopic component 301 moves towards the worktable 2, causing the clamping plate 302 to move closer to the workpiece. The pressure sensor 303, which is set between the clamping plate 302 and the movable part of the first telescopic component 301, starts to work, detecting the pressure applied by the clamping plate 302 to the workpiece in real time. The pressure sensor 303 transmits the detected pressure signal to the control unit 4. The control unit 4 controls the telescopic movement of the first telescopic component 301 according to the received pressure signal. If the pressure is less than the preset pressure range, the control unit 4 controls the first telescopic component 301 to continue to extend, causing the clamping plate 302 to further squeeze the workpiece and increase the pressure; if the pressure is greater than the preset pressure range, the control unit 4 controls the first telescopic component 301 to retract, reducing the pressure of the clamping plate 302 on the workpiece. By continuously adjusting, until the pressure detected by all pressure sensors 303 is within the preset pressure range, the workpiece is considered to be positioned stably.
[0030] like Figure 1As shown, upon activation of the first telescopic component 301, the control unit 4 receives a defense signal. Based on this signal, the control unit 4 controls the extension of the second telescopic component 502. Since the movable frame 501 is slidably connected to the base 1, and the worktable 2 is equipped with the second telescopic component 502 that controls the movement of the movable frame 501, the extension of the second telescopic component 502 pushes the movable frame 501 towards the fixed frame 503. As the movable frame 501 moves, the multiple spring telescopic rods 504 on the top of the movable frame 501 gradually approach the multiple receiving slots 505 on the top of the fixed frame 503 that are compatible with the spring telescopic rods 504. When the movable frame 501 moves to the appropriate position, the spring telescopic rods 504 engage with the receiving slots 505, forming a barrier. This barrier isolates the worktable 2 area from the external operating space, preventing processing operations before the workpiece positioning is completed and avoiding misoperation.
[0031] like Figure 1 As shown, when all pressure sensors 303 detect that the pressure is within the preset pressure range, i.e., the workpiece positioning is stable, the control unit 4 receives a release signal. Based on the release signal, the control unit 4 controls the second telescopic assembly 502 to retract. The retraction of the second telescopic assembly 502 pulls the movable frame 501 away from the fixed frame 503. As the movable frame 501 moves, the spring telescopic rod 504 gradually disengages from the receiving groove 505, and the obstruction barrier is removed. At this time, the workbench 2 area is reconnected to the external operating space, and the operator can perform subsequent processing operations.
[0032] like Figure 1 As shown, both the movable frame 501 and the fixed frame 503 have openings in their middle sections for the first telescopic component 301 to move. During the operation of the fixture, the first telescopic component 301 is responsible for driving the clamping plate 302 to clamp the workpiece, requiring frequent telescopic movements. The openings provide sufficient space for the telescopic component 301 to extend and retract, ensuring that it is not obstructed by the movable frame 501 or the fixed frame 503. When the first telescopic component 301 extends, its movable part smoothly drives the clamping plate 302 towards the workpiece to complete the clamping action; when it is necessary to release the clamp, the first telescopic component 301 can also retract smoothly. Without the openings, the first telescopic component 301 might collide or interfere with the movable frame 501 or the fixed frame 503 during extension and retraction, which would not only affect the normal operation of the first telescopic component 301 but may also cause equipment damage. The presence of the openings effectively avoids this situation, ensuring the stability and reliability of the entire fixture structure and ensuring the smooth operation of the workpiece clamping and positioning process.
[0033] like Figures 1 to 2As shown, the spring telescopic rod 504 includes a fixed tube 541, with a movable rod 542 slidably connected to the inner wall of the fixed tube 541. The end of the movable rod 542 is connected to the bottom of the fixed tube 541 via a return spring 543. When a barrier is needed to prevent misoperation, the movable frame 501 moves towards the fixed frame 503 under the push of the second telescopic assembly 502. As the movable frame 501 moves, the spring telescopic rod 504 gradually approaches the fixed frame 503. When the movable rod 542 contacts the fixed frame 503, due to the slidable connection between the movable rod 542 and the inner wall of the fixed tube 541, the movable rod 542 slides into the fixed tube 541 under the compression of the fixed frame 503, while the return spring 543 is compressed. When the movable frame 501 moves to the appropriate position, the movable rod 542 partially pops out of the fixed tube 541 under the elastic force of the return spring 543 and gets into the receiving groove 505 provided at the top of the fixed frame 503, thereby forming a barrier to isolate the workbench 2 area from the external operating space. During the process of the spring telescopic rod 504 engaging with the receiving groove 505, the return spring 543 acts as a buffer, reducing the impact force between the movable rod 542 and the fixed frame 503, lowering noise and vibration, and protecting the structure of both the spring telescopic rod 504 and the fixed frame 503. When it is necessary to remove the barrier, the movable frame 501 moves away from the fixed frame 503 under the pull of the second telescopic component 502, and the movable rod 542 is no longer squeezed by the fixed frame 503. The elastic force of the return spring 543 causes the movable rod 542 to gradually return to its original position, and finally the spring telescopic rod 504 disengages from the receiving groove 505, thus removing the barrier.
[0034] Both the first telescopic assembly 301 and the second telescopic assembly 502 are equipped with pneumatic or electric cylinders. Both pneumatic and electric cylinders are characterized by fast response speed and high control precision. In the tooling fixture, the first telescopic assembly 301 needs to precisely control the pressure of the clamping plate 302 on the workpiece based on the feedback signal from the pressure sensor 303 to ensure stable workpiece positioning. The pneumatic or electric cylinder can precisely adjust its telescopic stroke and speed through the control system, enabling the clamping plate 302 to accurately apply appropriate pressure. The second telescopic assembly 502 needs to control the movement of the movable frame 501 to achieve the formation and release of the barrier. The precise control capability of the pneumatic or electric cylinder ensures that the movable frame 501 moves to the accurate position, allowing the spring telescopic rod 504 to smoothly engage and disengage from the receiving groove 505.
[0035] Second embodiment
[0036] like Figure 3As shown, an arc-shaped guide block 544 is provided at the end of the movable rod 542 facing the receiving groove 505, and a flexible buffer pad 545 is adhered to the outer surface of the arc-shaped guide block 544. During the process of the spring telescopic rod 504 engaging with the receiving groove 505 to form a barrier and disengaging from the receiving groove 505 to release the barrier, the movable rod 542 needs to accurately align with the receiving groove 505. The arc-shaped guide block 544 at the end of the movable rod 542 facing the receiving groove 505 plays a crucial guiding role. When the movable frame 501 moves, causing the spring telescopic rod 504 to approach the receiving groove 505, the arc-shaped guide block 544 first contacts the edge of the receiving groove 505. Due to its arc-shaped design, as the movable frame 501 continues to move, the arc-shaped guide block 544 slides along the edge of the receiving groove 505, guiding the movable rod 542 smoothly into the receiving groove 505. This avoids collisions or jamming between the movable rod 542 and the edge of the receiving groove 505, improving the smoothness and accuracy of the fit between the spring telescopic rod 504 and the receiving groove 505. When the spring telescopic rod 504 engages with the receiving groove 505, a certain impact force is generated between the movable rod 542 and the receiving groove 505. The flexible buffer pad 545 bonded to the outer surface of the arc-shaped guide block 544 can effectively absorb and buffer this impact force. The flexible buffer pad 545 is usually made of an elastic material. When subjected to impact, it deforms, dispersing the impact force and converting it into its own elastic potential energy. This reduces wear between the movable rod 542 and the receiving groove 505, reduces noise and vibration, extends the service life of the spring telescopic rod 504 and the receiving groove 505, and also ensures the stability and reliability of the entire tooling fixture operation.
[0037] like Figure 3 As shown, the deformable distance of the return spring 543 is no less than 10 cm. This design ensures the barrier function while also taking into account the convenience of operation for workers. Under normal working conditions, when a barrier needs to be formed, the movable frame 501 moves, causing the spring telescopic rod 504 to engage with the receiving groove 505. The return spring 543 is compressed, and its deformable distance is sufficient to allow the spring telescopic rod 504 to smoothly engage with the receiving groove 505 and form a stable barrier, ensuring that the barrier effectively prevents misoperation. Since the width of a male's palm is generally 7 to 8 cm, the deformable distance of the return spring 543 of no less than 10 cm allows workers to pass their hands through the barrier in special circumstances, such as when manually adjusting the workpiece position. When the worker applies force to push the movable frame 501, the return spring 543 is further compressed, allowing the movable frame 501 to move a certain distance, providing sufficient space for the hand to enter the worktable 2 area to adjust the workpiece. After adjustment, release your hand. The spring force of the return spring 543 will reset the movable frame 501, and the spring telescopic rod 504 will re-engage into the receiving groove 505, restoring the function of the barrier. This design ensures both the safety of the tooling fixture and improves operational flexibility.
[0038] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.
Claims
1. A tooling fixture that prevents misoperation, comprising a base (1), characterized in that: A workbench (2) is provided on the base (1). A clamping mechanism is evenly distributed in a ring on the workbench (2) of the base (1). The clamping mechanism includes a first telescopic component (301). A clamping plate (302) is provided on the movable part of the first telescopic component (301) facing the workbench (2). A pressure sensor (303) is provided between the clamping plate (302) and the movable part of the first telescopic component (301). The pressure sensor (303) controls the first telescopic component (301) to extend and retract through the control unit (4) until the pressure detected by the pressure sensor (303) is within the preset pressure range. The base (1) is provided with a movable frame (501) on one side of the workbench (2). The movable frame (501) is slidably connected to the base (1). The workbench (2) is provided with a second telescopic component (502) for controlling the movement of the movable frame (501). The base (1) is fixedly provided with a fixed frame (503) on the side of the workbench (2) away from the movable frame (501). The top of the movable frame (501) is provided with multiple spring telescopic rods (504). The top of the fixed frame (503) is provided with multiple receiving slots (505) that are adapted to the spring telescopic rods (504). When the first telescopic component (301) is activated, the control unit (4) receives a defense signal and controls the second telescopic component (502) to extend. The spring telescopic rod (504) is inserted into the receiving groove (505) to form a barrier. When all the pressure sensors (303) detect that the pressure is within the preset pressure range, the control unit (4) receives a release signal. The second telescopic component (502) retracts, causing the spring telescopic rod (504) to disengage from the receiving groove (505) and release the barrier.
2. The tooling fixture that prevents misoperation according to claim 1, characterized in that: Both the movable frame (501) and the fixed frame (503) have an opening in the middle for the first telescopic component (301) to move.
3. The tooling fixture that prevents misoperation according to claim 1, characterized in that: The spring telescopic rod (504) includes a fixed tube (541), and a movable rod (542) is slidably connected to the inner wall of the fixed tube (541). The end of the movable rod (542) is connected to the bottom of the fixed tube (541) through a return spring (543).
4. The tooling fixture that prevents misoperation according to claim 3, characterized in that: An arc-shaped guide block (544) is provided at one end of the movable rod (542) facing the receiving groove (505), and a flexible buffer pad (545) is bonded to the outer surface of the arc-shaped guide block (544).
5. A tooling fixture capable of preventing misoperation according to claim 3, characterized in that: The deformable distance of the return spring (543) is not less than 10 cm.
6. The tooling fixture that prevents misoperation according to claim 1, characterized in that: Both the first telescopic component (301) and the second telescopic component (502) are configured as cylinders or electric cylinders.