TWI879551B - Vise structure with clamping force display - Google Patents

Abstract

A vise structure with a clamping force display includes a body, a sensing unit, a multiplier unit and an electric control box. The sensing unit includes a thrust bearing collar, a first thrust bearing, a second thrust bearing and a force sensor. The force sensor and the electric control box are arranged so that the force sensor sends a clamping force sensing signal at the moment of contacting the second thrust bearing. The electric control box can receive the clamping force sensing signal and convert the clamping force sensing signal into a digital measurement value, perform calculation processing at the same time, and then transmit the clamping force sensing signal to a receiving end by wireless transmission, so as to synchronously display or store and record the clamping force value, thereby achieving the effect of accurately clamping the workpiece.

Description

Vise structure with clamping force display

The present invention relates to a vise structure, and in particular to a vise structure with a clamping force display.

According to the field of metal machining technology, a vise is a clamp used to clamp workpieces. Among them, the traditional vise structure mainly has a base, a fixed jaw and a movable jaw. The fixed jaw is set at one end of the base, and the movable jaw is set on the top of the base. The movable jaw is driven by a screw to cause displacement. Therefore, when a processing operation is to be performed, a workpiece is first placed on the base, and the screw will drive the movable jaw to approach the workpiece, so that the workpiece can be clamped and fixed by the fixed jaw and the movable jaw.

However, when the screw is rotated to control the movable jaw to move close to the workpiece, it is impossible to directly visually determine whether the movable jaw and the fixed jaw have firmly clamped the workpiece, which may cause the workpiece to loosen during the processing process, or the workpiece may be over-clamped without knowing it, and the screw continues to be rotated, causing the workpiece to be over-clamped by the movable jaw and the fixed jaw, resulting in dents on the workpiece or damage to parts. Therefore, the traditional vise structure needs to be improved.

In order to overcome the shortcomings of the known solution, the inventor has developed an improved solution with a vise structure that can display the clamping force after active thinking, prototype testing and improvement, which can completely solve or effectively improve many shortcomings of the known solution.

The present invention discloses a vise structure with a clamping force display, which comprises a body, the body comprising a base and a screw, the screw is arranged in the base, the screw has a first end and a second end arranged opposite to each other, and a stop ring is arranged on the outer periphery of the screw near the first end; a sensing unit, the sensing unit comprises a thrust bearing sleeve and a force sensor, the thrust bearing sleeve is sleeved At the first end of the screw, the end edge of one end of the thrust bearing sleeve is provided with an annular protrusion facing outward, the annular protrusion abuts against the stop ring of the screw, the force sensor is sleeved on the thrust bearing sleeve; a multiplying force unit, the multiplying force unit includes a mechanical multiplying force mechanism, one end of the multiplying force mechanism abuts against the sensing unit; an electric control box, the electric control box is electrically connected to the force sensor.

The sensing unit further includes a first thrust bearing and a second thrust bearing, the first thrust bearing and the second thrust bearing are sleeved on the thrust bearing sleeve ring, the force sensor is located between the first thrust bearing and the second thrust bearing, the two sides of the first thrust bearing respectively form a first front side portion and a first rear side portion, the first front side portion abuts against one end of the multiplying mechanism, the first rear side portion abuts against one end of the force sensor, and the two sides of the second thrust bearing respectively form a second front side portion and a second rear side portion, the second front side portion abuts against the annular convex portion, and the second rear side portion abuts against the other end of the force sensor.

Through the above structure, the present invention uses the force sensor and the electric control box to send out a clamping force sensing signal when the force sensor contacts the second thrust bearing. The electric control box can receive the clamping force sensing signal and convert it into a digital measurement value, perform calculation processing at the same time, and then transmit the clamping force sensing signal to a receiving end by wireless transmission, so as to synchronously display or store and record the clamping force value, thereby achieving the effect of accurately clamping the workpiece.

200: receiving end

210: Screen

100: Vise structure with clamping force display

10: Body

11: Base

111: Groove

112:Fixed block

12: Nut

13: Screw

131: thread segment

132: First End

133: Second End

134: Stop ring

14:Move Block

15:Front dust cover assembly

16: Rear dust cover set

20:Sensing unit

21:Thrust bearing ring

211: convex part

22: First thrust bearing

221: First front side

222: First posterior part

23: Second thrust bearing

231: Second front part

232: Second posterior part

24: Force sensor

30: Double power unit

31: Fixed seat

32: Double Strength Mechanism

40:Electrical control box

41:Signal connector

42: Power cord

43: Amplifier

44: Translator

45:Calculator

50: Workpiece

[Figure 1] is a three-dimensional diagram of a preferred embodiment of the present invention.

[Figure 2] is a three-dimensional diagram of a preferred embodiment of the present invention from another angle.

[Figure 3] is a disassembled diagram of a preferred embodiment of the present invention.

[Figure 4] is a cross-sectional view of a preferred embodiment of the present invention.

〔Figure 5〕is a partial enlarged view of 〔Figure 4〕.

[Figure 6] is a structural block diagram of a preferred embodiment of the present invention.

[Figure 7] is a schematic diagram of the rotation of a preferred embodiment of the present invention.

[Figure 8] is a schematic diagram of the reaction force generated by the screw of the preferred embodiment of the present invention.

Please refer to Figures 1 to 5, which disclose a vise structure 100 with clamping force display, which includes:

A body 10, the body 10 includes a base 11, a nut 12, a screw 13 and a moving block 14, the base 11 is provided with a fixing block 112 at the top of one end, and the base 11 has a groove 111, the nut 12 is arranged in the groove 111, the screw 13 is arranged in the base 11, and is screwed to the nut 12, and the screw 13 has a first end 132 and a second end 133 arranged opposite to each other. The second end 133 is provided with a stop ring 134 on the outer periphery near the first end 132, and the moving block 14 is fixedly connected to the top of the nut 12, so that when the screw 13 rotates, the nut 12 can move along a threaded section 131 of the screw 13, so that the nut 12 links the moving block 14 and can be relatively close to or away from the fixed block 112, so as to clamp a workpiece 50 for processing, as shown in FIG7.

The main body 10 further includes a front dust cover set 15 and a rear dust cover set 16. The front dust cover set 15 and the rear dust cover set 16 are disposed on both sides of the moving block 14 and cover the groove 111 to prevent dust or debris from entering the main body 10.

A sensing unit 20 includes a thrust bearing sleeve 21, a first thrust bearing 22, a second thrust bearing 23 and a force sensor 24. The thrust bearing sleeve 21 is tightly fitted on the first end 132 of the screw 13, and an end edge of the thrust bearing sleeve 21 is provided with an annular protrusion 211 facing outward. The protrusion 211 abuts against the stop ring 134 of the screw 13. The first thrust bearing 22, the second thrust bearing 23 and the force sensor 24 are sleeved on the thrust bearing sleeve 21. The force sensor 24 is located between the first thrust bearing 22 and the second thrust bearing 23. The two sides of the first thrust bearing 22 form a first front The first front side portion 221 and a first rear side portion 222, the first front side portion 221 is tightly fitted with the thrust bearing ring 21, the first rear side portion 222 is against one end of the force sensor 24, and the two sides of the second thrust bearing 23 are respectively formed with a second front side portion 231 and a second rear side portion 232, the second front side portion 231 is tightly fitted with the thrust bearing ring 21, and the first rear side portion 222 is against one end of the force sensor 24. The bearing ring 21 is tightly fitted and abuts against the annular convex portion 211. The second rear side portion 232 abuts against the other end of the force sensor 24. In addition, the inner diameter of the first rear side portion 222 and the second rear side portion 232 is slightly larger than the outer diameter of the thrust bearing ring 21. The dimensional tolerance between the three is a static fit (Transition fit).

A force unit 30, the force unit 30 includes a fixed seat 31 and a mechanical force mechanism 32, the fixed seat 31 is fixed to one end of the base 11 different from the fixed block 112, and one end of the force mechanism 32 passes through the fixed seat 31 and abuts against the first front side portion 221 of the first thrust bearing 22.

An electric control box 40 is fixed to one side of the fixing block 112 and electrically connected to the force sensor 24. A signal connector 41 is provided below the electric control box 40. The electric control box 40 is connected to the force sensor 24 via one end of a power line 42 and the other end of the power line 42, as shown in FIG. 2, so that the electric control box 40 and the force sensor 24 are electrically connected.

In order to further understand the structural features, technical means used and expected effects of the present invention, the use of the present invention is described. It is believed that this will provide a deeper and more specific understanding of the present invention, as described below:

Referring to FIG. 7 to FIG. 8 and FIG. 5 , when the present invention is to perform a machining operation, the workpiece 50 is first placed on the top of the base 11, and the thrust bearing ring 21 and the screw 13 are driven to rotate by operating the force multiplying mechanism 32, so that the nut 12 drives the moving block 14 to be relatively close to the fixed block 112, thereby achieving the effect of clamping the workpiece 50. At the same time, when the moving block 14 abuts against the workpiece 50, the screw 13 will generate a reaction force, causing the stop ring 134 to push against the annular protrusion 211 of the thrust bearing sleeve 21, and further causing the annular protrusion 211 to push against the second thrust bearing 23 and contact the force sensor 24. The force sensor 24 will send a clamping force sensing signal at the moment of contact.

Referring to FIG. 6 , the electric control box 40 includes an amplifier 43, an encoder 44, and an operator 45. The amplifier 43 can receive the clamping force sensing signal generated by the force sensor 24 and amplify the clamping force sensing signal. The encoder 44 is connected to the amplifier 43 to convert the clamping force sensing signal into a digital measurement value. The operator 45 is connected to the The decoder 44 is used to process the digital measurement values so as to present the clamping force sensing signal in the form of a numerical value, and then transmit the clamping force sensing signal to a receiving end 200 by wireless transmission. The receiving end 200 can be a smart phone or a computer, so that a screen 210 thereof can synchronously display or store and record the clamping force value, thereby achieving the effect of accurately clamping the workpiece.

The receiving end 200 may also be provided with the operator 45. The decoder 44 converts the clamping force sensing signal into a digital measurement value and transmits it to the receiving end 200 by wireless transmission. The digital measurement value is then processed by the receiving end 200.

In summary, this invention has excellent advancement and practicality among similar products. At the same time, after searching domestic and foreign technical data on this type of structure, no similar structure has been found in the literature. Therefore, this invention has the patent requirements and is filed in accordance with the law.

However, the above is only a preferred feasible embodiment of the present invention, so any equivalent structural changes made by applying the present invention specification and the scope of patent application should be included in the patent scope of the present invention.

100: Vise structure with clamping force display

10: Body

11: Base

112: Fixed block

14:Move block

15: Front dust cover assembly

16: Rear dust cover set

30: Double power unit

31: Fixed seat

32: Beili Agency

40:Electrical control box

Claims (10)

A vise structure with a clamping force display, comprising: A body, the body comprising a base and a screw, the screw is arranged in the base, the screw has a first end and a second end arranged opposite to each other, and a stop ring is arranged on the outer periphery of the screw near the first end; A sensing unit, the sensing unit includes a thrust bearing sleeve and a force sensor, the thrust bearing sleeve is sleeved on the first end of the screw, and the end edge of one end of the thrust bearing sleeve is provided with an annular convex portion facing outward, the annular convex portion abuts against the stop ring of the screw, and the force sensor is sleeved on the thrust bearing sleeve; A multiplier unit, the multiplier unit includes a mechanical multiplier mechanism, one end of the multiplier mechanism is against the sensing unit; An electrical control box, which is electrically connected to the force sensor. The vise structure with clamping force display as described in claim 1, wherein the sensing unit further includes a first thrust bearing and a second thrust bearing, the first thrust bearing and the second thrust bearing are sleeved on the thrust bearing sleeve, the force sensor is located between the first thrust bearing and the second thrust bearing, and the two sides of the first thrust bearing are respectively shaped The first front side portion is against one end of the force multiplying mechanism, and the first rear side portion is against one end of the force sensor. The two sides of the second thrust bearing are respectively formed into a second front side portion and a second rear side portion, and the second front side portion is against the annular convex portion, and the second rear side portion is against the other end of the force sensor. A vise structure with a clamping force display as described in claim 2, wherein the first front side portion and the second front side portion are respectively arranged to be tightly matched with the thrust bearing sleeve. A vise structure with a clamping force display as described in claim 1, wherein the thrust bearing collar and the first end of the screw rod are arranged in a tight fit. The vise structure with clamping force display as described in claim 2, wherein the inner diameter of the first rear side portion and the second rear side portion is slightly larger than the outer diameter of the thrust bearing sleeve, and the dimensional tolerance between the three is a static fit (Transition fit). The vise structure with clamping force display as described in claim 1, wherein the electric control box includes an amplifier, an interpreter and an operator, the amplifier can receive a clamping force sensing signal generated by the force sensor and amplify the clamping force sensing signal, the interpreter is connected to the amplifier to convert the clamping force sensing signal into a digital measurement value, and the operator is connected to the interpreter to perform operation processing on the above digital measurement value, so that the clamping force sensing signal can be presented in a digital form. As described in claim 1, the vise structure with clamping force display has a signal connector below the electric control box, and the electric control box is connected to the force sensor via one end of a power cord and the other end of a power cord is connected to the signal connector, so that the electric control box and the force sensor are electrically connected. The vise structure with clamping force display as described in claim 1, wherein the body further includes a nut and a moving block, the base has a groove, the nut is arranged in the groove, the screw is screwed to the nut, the moving block is fixed to the top of the nut, and the base is provided with a fixed block at the top of one end. A vise structure with a clamping force display as described in claim 8, wherein the force multiplying unit further includes a fixing seat, which is fixed to one end of the base different from the fixing block. The vise structure with clamping force display as described in claim 8, wherein the main body further includes a front dust cover set and a rear dust cover set, the front dust cover set and the rear dust cover set are arranged on both sides of the moving block and cover the groove.