Vice device

Abstract

To provide a vice device which has a digital display mechanism of clamp force.SOLUTION: A vice device is configured such that a sensor element and a numeric display device are installed on a screw rod support seat, counter-acting force is generated against a screw rod when a workpiece is pinched by a movable jaw in a case where an operator continuously rotates a handle, a signal is generated by sensing a deformation amount or a displacement amount of the screw rod support seat by the sensor element after the counter-acting force is transmitted via the screw rod to the screw rod support seat at the rear end of a vice, and a numerical value of the pinch force is displayed on the numeric display device after processing operations by feeding back to the numeric display device. With this, purposes such as accurately displaying the clamp force, ensuring the firm pinching of the workpiece by the vice device and preventing excessive or insufficient clamp force may be achieved.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to the technical field of vice, and in particular to a vice device having a digital display mechanism for clamping force that can be immediately sensed and further display the numerical value of the clamping force of the vice.

Background Art

[0002] As shown in FIG. 1, in the conventional vice structure and operation method, the workpiece 200 is placed within the opening range on the vice body 101 of the vice 100, and when the operator rotates the handle 102 at the rear end of the vice 100, the screw rod 103 can be synchronously interlocked to rotate. Through the screw rod 103, the nut seat 104 and the movable jaw 105 are driven to move toward the workpiece 200. When the workpiece 200 is clamped by the contact of the clamping surfaces of the movable jaw 105 and the fixed jaw 106, if the operator continues to rotate the handle 102 again, the pressure boosting mechanism 107 connected to the rear end of the screw rod 103 can be activated. As the pressure boosting mechanism 107, generally, a hydraulic pressure boosting mechanism, a mechanical double force boosting mechanism, a pneumatic pressure boosting mechanism, a screw pressure boosting mechanism, or other structures such as mechanisms of other forms may be used. When the screw rod 103 is continuously pushed, the movable jaw 105 can be pressurized toward the fixed jaw 106 to generate an effect of clamping the workpiece.

[0003] Please refer to the following literature on the conventional vice technology.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

[0005] Whether the clamping force of the vise 100 on the workpiece 200 is sufficient is generally determined by the operator based on their practical experience or by the feel when rotating the handle 102. However, the clamping force of the vise 100 on the workpiece 200 must be determined according to factors such as the amount of material to be cut, the tool feed rate, the structural strength and material of the workpiece, and relying solely on practical experience or feel to determine the clamping force inevitably leads to human error or misjudgment. Furthermore, experience and feel are personal, subjective, and abstract sensations, and they vary from person to person. Therefore, it is easy for the degree of clamping force of the vise to be inappropriate, which may lead to situations such as vibration, displacement, loosening, or detachment of the workpiece during the subsequent machining process. Furthermore, if the clamping force of the vise is too large, it will cause elastic deformation of the workpiece 200. When the workpiece 200 is removed from the vise after machining, machining errors such as dimensional errors and shape errors will directly occur after it returns to its original state from the elastically deformed state, affecting the quality of the workpiece. Therefore, a key challenge for this invention is to overcome the drawback of conventional vises, which is the inability to determine the magnitude of the clamping force during operation.

[0006] The present invention has been made in view of the above, and its main objective is to provide a vise device having a digital display mechanism for clamping force, which can instantly sense and display the numerical value of the clamping force applied to a workpiece by the vise through a sensor element and a digital display device installed in the vise, allowing the operator to instantly visually confirm the magnitude of the clamping force, thereby achieving effects such as displaying the clamping force with a precise numerical value, ensuring firm clamping of the workpiece by the vise, and preventing excessive or insufficient clamping force. This improves upon the drawback of conventional vises that cannot display the clamping force.

[0007] A secondary objective of the present invention is to provide a vise device that, through the design of a digital display device, can be attached to the screw rod support seat of a conventional vise, displays the numerical value of the vise's clamping force in a more easily observable position, and can be attached to and applied to a conventional vise. [Means for solving the problem]

[0008] To achieve the above objective, a preferred technical solution for the vise device of the present invention comprises a vise, a sensor element, and a digital display device, wherein the vise has a vise body, two clamp jaws mounted on the vise body for clamping a workpiece, a screw rod support seat coupled to the rear end of the vise body, and a screw rod rotatably inserted through the screw rod support seat, and the clamp jaws are driven to move on the vise body when the screw rod rotates, the sensor element is mounted on the screw rod support seat of the vise and is used to sense the amount of deformation or displacement generated when the screw rod drives the clamp jaws to clamp the workpiece and transmits the reaction force from the screw rod back to the screw rod support seat, and continuously detects and generates a signal, and the digital display device is connected to the sensor element via a signal line and is used to continuously receive the signal from the sensor element and, after processing the signal, displays the numerical value of the clamping force detected by the vise. [Effects of the Invention]

[0009] The vice device of the present invention provides the following effects. (1) Display of numerical values ​​for the clamping force of the vise: According to the present invention, when an operator is provided with a vise to clamp a workpiece, the amount of deformation or displacement that occurs when the screw rod drives both clamping jaws or one of the clamping jaws to clamp the workpiece, thereby transmitting the reaction force from the screw rod back to the screw rod support seat, is sensed through a sensor element, and a signal is generated in the sensor element and fed back to the digital display device. Furthermore, processing calculations are performed through the control unit of the digital display device to obtain the numerical value of the clamping force of the vise, and the numerical value of the clamping force of the vise at that time is displayed via a display unit consisting of an LCD display, LED display, OLED display, or other display device. (ii) Easier observation of numerical values: According to the present invention, the numerical display device is structured to be coupled to the screw rod support seat via its housing, so that the numerical display device can be positioned in a location and direction close to the operator, and the numerical values ​​of the clamping force of the vise can be more easily observed simultaneously when the operator rotates the vise handle. (iii) Applicable by attaching to conventional vises: According to the present invention, by attaching an independent digital display device and a sensor element to a conventional vise, a function for displaying the clamping force digitally can be realized in a conventional vise. [Brief explanation of the drawing]

[0010] [Figure 1] This is a side cross-sectional view showing a conventional vise structure and operating method. [Figure 2] This is a perspective view showing a preferred embodiment of the vise device of the present invention. [Figure 3] This is a side cross-sectional view showing a preferred embodiment of the vice device of the present invention. [Figure 4] This is a plan view showing a preferred embodiment of the vise device of the present invention. [Figure 5] This is a rear view showing a preferred embodiment of the vise device of the present invention. [Figure 6] This is a block diagram showing the units of the digital display device for the vice apparatus of the present invention. [Modes for carrying out the invention]

[0011] Hereinafter, a vise device according to an embodiment of the present invention will be described with reference to the drawings. As shown in Figures 2 to 6, a preferred specific embodiment of the vice device of the present invention comprises a vice 10, a sensor element 20, and a digital display device 30.

[0012] One preferred embodiment of the vise 10 comprises a vise body 11, a nut seat 12, a screw rod support seat 13, a screw rod 14, and two clamp jaws 15 and 16. The upper end of the vise body 11 has two slide rails 111 extending parallel to each other at both the front and rear ends, and a housing groove 112 extending at both the front and rear ends is formed between the two slide rails 111. The nut seat 12 is installed in the housing groove 112 of the vise body 11, so that the nut seat 12 can be linked to the movement of the clamp jaws 16 back and forth within the housing groove 112. The screw rod support seat 13 is connected to the rear end of the vise body 11 via a screw fastening structure and acts as a fulcrum for supporting and rotating the screw rod 14. The screw rod 14 is inserted through the screw rod support seat 13, so that the front end of the screw rod 14 is screwed into the nut seat 12, and the rear end of the screw rod 14 protrudes from the rear surface of the screw rod support seat 13, and is configured to be able to move back and forth in conjunction with the rotation of the screw rod 14.

[0013] One of the two clamp jaws 15 and 16, clamp jaw 15, is fixedly coupled to both slide rails 111 at the front end of the vise body 11 and operates as a fixed jaw, while the other clamp jaw 16 operates as a movable jaw by being screwed onto a nut seat 12. Furthermore, the vise 10 may be implemented to have a pressure booster 17, which may be a conventional item, a hydraulic pressure booster, a mechanically powered pressure booster, a pneumatic pressure booster, a screw pressure booster, or any other structure. The pressure booster 17 is coupled to the rear end of the screw rod 14, and a tool hole for the operator to connect the handle 18 to the rear end of the pressure booster 17 is used to rotate the pressure booster 17 and the screw rod 14 in synchronous motion. As the screw rod 14 rotates, one of the clamp jaws 16 is driven to move onto the vise body 11, thereby creating an opening between the two clamp jaws 15 and 16 sufficient to clamp a workpiece.

[0014] The sensor element 20 is installed on the screw rod support seat 13 of the vise 10. Specifically, it may be one of a pressure sensor, an electromagnetic induction sensor, or a capacitive sensor. It is used to sense the reaction force transmitted from the screw rod 14 to the screw rod support seat 13 when the clamp jaws 16 are driven by the screw rod 14 to clamp a workpiece, thereby causing the sensor element 20 to generate a signal. The digital display device 30 is connected to the sensor element 20 via a signal line 40 and is used to receive the signal from the sensor element 20. After processing the signal, it displays the numerical value of the clamping force detected by the vise 10.

[0015] Referring again to FIGS. 4 and 6, a preferred embodiment of the above-described digital display device 30 includes a housing 31, a control unit 32, a display unit 33, a power supply unit 34, and a control interface 35 installed within the housing 31. The housing 31 is fixed to the rear end of the vice body 11 or fixed to the screw rod support base 13 (see FIG. 4) to provide a suitable observation effect for the operator. The control unit 32 is a core configuration for performing signal processing and calculation, and mainly has an electric circuit board and a processor (IC). The display unit 33 is one of an LCD display, an LED display, and an OLED display, or other displays, and is used to display the numerical value of the clamping force of the vice 10. The power supply unit 34 has a battery and a power connector for connecting to an external power source, and supplies the required power to the sensor element 20 and the digital display device 30. And the control interface 35 may be a keyboard interface or a touch panel interface, and is provided for operations such as opening / starting, closing / stopping, and setting of the digital display device 30 of the vice of the present invention. For example, switching the numerical value of the pressure display and the like can be mentioned.

[0016] When the vice device of the present invention is in use, when the operator is provided to clamp the workpiece using the vice 10 through the sensor element 20 and the digital display device 30 installed on the vice 10, when the sensor element 20 drives the clamp jaw 16 by the screw rod 14 to clamp the workpiece, by transmitting the reaction force from the screw rod 14 back to the screw rod support base 13, the deformation amount or displacement amount L1 (see FIG. 4) generated on the screw rod support base 13 is sensed. At the same time, the sensor element 20 continuously senses the deformation amount or displacement amount L1 to generate a signal and feedback it to the digital display device 30.

[0017] The digital display device 30 acquires the signals of the sensor element 20, immediately performs processing operations through the processor (IC) of its control unit 32, obtains the numerical value of the clamping force of the vise 10, and displays the numerical value of the clamping force detected by the vise 10 through a display unit 33 composed of an LCD display, an LED display, or an OLED display. Therefore, according to the present invention, the operator can directly observe the digital display device 30 and rotate the handle 18. After reaching the set numerical value of the clamping force, the rotation can be immediately stopped. Thus, the present invention can improve the drawback of the conventional vise that simply relies on the operator's experience and touch to control the clamping force. The vise 10 of the present invention can fix the workpiece with a precise and appropriate clamping force, and prevent the deformation of the workpiece caused by excessive clamping force, or the loosening, dropping, and displacement of the workpiece caused by insufficient clamping force.

[0018] The vise 10 of the present invention is not limited to the above-mentioned vise having the pressure boosting device 17, and can be implemented as long as it is a conventional vise with a clamping force component having a structure that receives the acting force and the reaction force. The digital display device 30 of the present invention can be fixed on the vise 10 through a design having a housing 31, a control unit 32, a display unit 33, a power supply unit 34, and a control interface 35. After that, the above-mentioned sensor element 20 can be attached to the screw rod support seat 13 of the vise 10, enabling the realization of the digital display function of the clamping force on the conventional vise, and improving the drawback of the conventional vise that relies only on the operator's practical experience and touch to control the clamping force of the vise. As described above, the present invention is not limited to the above-mentioned embodiments, and can be implemented in various forms without departing from the gist thereof.

Explanation of Reference Numerals

[0019] 10: Vise 11: Vise body 111: Slide rail 112: Accommodation groove 12: Nut seat 13: Screw rod support seat 14: Screw rod 15, 16: Clamp jaw 17: Pressure booster 18: Handle 20: Sensor element 30:Numeric display device 31: Housing 32: Control Unit 33: Display Unit 34: Power supply unit 35: Control Interface 40: Signal line L1: Displacement amount

Claims

1. A vise device having a digital display mechanism for clamping force, comprising a vise, a sensor element, and a digital display device, The vise comprises a vise body, two clamping jaws mounted on the vise body for gripping a workpiece, a screw rod support seat coupled to the rear end of the vise body, and a screw rod rotatably inserted through the screw rod support seat, wherein at least one of the clamping jaws is driven to move on the vise body when the screw rod rotates. The sensor element, installed on the screw rod support seat of the vise, is used to sense the amount of deformation or displacement that occurs when the clamp jaws are driven by the screw rod to clamp the workpiece, and the reaction force from the screw rod is transmitted back to the screw rod support seat, and to continuously detect and generate a signal. The vise device is characterized in that the digital display device, which is connected to the sensor element via a signal line, is used to continuously receive signals from the sensor element and, after processing the signals, displays a numerical value of the clamping force detected by the vise.

2. The vice device according to claim 1, characterized in that the sensor element is a pressure sensor that detects pressure.

3. The vice device according to claim 2, characterized in that the digital display device includes a control unit, a display unit connected to the control unit, a power supply unit connected to the control unit, and a control interface connected to the control unit.

4. The vise device according to claim 3, characterized in that the digital display device has a housing fixed to the vise body or the screw rod support seat, and the control unit, the display unit, the power supply unit and the control interface are installed within the housing.

5. The vice device according to claim 4, characterized in that the display unit is an LCD display, an LED display, or an OLED display.

6. The vice device according to claim 4, characterized in that the housing of the digital display device is a waterproof and dustproof housing.

7. The vise device according to claim 5, characterized in that the power supply unit has a battery.

8. The vise device according to claim 5, characterized in that the power supply unit has a power connector for connecting to an external power supply.

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