Vice structure with clamping force display function

Abstract

A vice structure with a clamping force display function comprises a body, a sensing unit, a force doubling unit and an electric control box, and the sensing unit comprises a thrust bearing lantern ring, a first thrust bearing, a second thrust bearing and a force sensor; therefore, through the arrangement of the force sensor and the electric control box, the force sensor sends a clamping force sensing signal at the moment of being in contact with the pushing of the second thrust bearing, and the electric control box can receive the clamping force sensing signal, convert the clamping force sensing signal into a digital measurement value and simultaneously carry out operation processing, so that the clamping force can be detected. And the clamping force sensing signal is transmitted to a receiving end in a wireless transmission mode, so that the clamping force value is synchronously displayed or stored and recorded, and the effect of accurately clamping the workpiece is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vice structure, in particular to a vice structure with clamping force display. BACKGROUND

[0002] In the technical field of metal machining, a vice is a clamp for clamping workpieces. The traditional vice structure mainly has a base, a fixed jaw and a movable jaw. The fixed jaw is arranged at one end of the base, and the movable jaw is arranged on the top surface of the base. The movable jaw is driven to displace by a screw rod, so that when work is to be performed, a workpiece is first placed on the base, and the screw rod drives the movable jaw to move close to the workpiece, so that the workpiece can be clamped and fixed by the fixed jaw and the movable jaw.

[0003] However, when the screw rod is rotated to control the movable jaw to move close to the workpiece, it is not possible to directly and accurately determine whether the movable jaw and the fixed jaw have firmly clamped the workpiece by visual observation, thereby causing the workpiece to loosen during machining, or the workpiece is clamped too tightly without being aware of it, and the screw rod is still rotated, causing the workpiece to be clamped too tightly by the movable jaw and the fixed jaw, resulting in indentation or damage to the workpiece. Therefore, the traditional vice structure needs to be improved.

[0004] Therefore, based on years of experience in manufacturing, development and design of related products, the inventor has finally designed and developed the utility model after careful design and evaluation. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a vice structure with clamping force display, which is simple in structure, convenient to operate and maintain, and can synchronously display or store the clamping force value, thereby achieving accurate clamping of workpieces.

[0006] To achieve the above-mentioned purpose, the utility model discloses a vice structure with clamping force display, which comprises:

[0007] a body, the body comprising a base and a screw rod, the screw rod being arranged in the base, the screw rod having a first end and a second end arranged opposite to each other, and a stop ring being arranged on the outer periphery of the screw rod close to the first end;

[0008] a sensing unit, the sensing unit comprising a thrust bearing sleeve ring and a force sensor, the thrust bearing sleeve ring being sleeved on the first end of the screw rod, and an annular protrusion being arranged on the outer edge of one end of the thrust bearing sleeve ring, the annular protrusion abutting against the stop ring of the screw rod, and the force sensor being sleeved on the thrust bearing sleeve ring;

[0009] an electric control box, the electric control box being electrically connected to the force sensor.

[0010] The sensing unit further includes a first thrust bearing and a second thrust bearing, which are sleeved on the thrust bearing collar. The force sensor is located between the first thrust bearing and the second thrust bearing. The first thrust bearing has a first front side and a first rear side on its two sides, with the first rear side abutting against one end of the force sensor. The second thrust bearing has a second front side and a second rear side on its two sides, with the second front side abutting against the annular protrusion and the second rear side abutting against the other end of the force sensor.

[0011] The first front side portion and the second front side portion are respectively configured to fit tightly with the thrust bearing collar.

[0012] The thrust bearing collar is fitted tightly to the first end of the screw.

[0013] The inner diameter of the first rear side and the second rear side is larger than the outer diameter of the thrust bearing collar, and the dimensional tolerances among the three are static fits.

[0014] The electronic control box includes an amplifier, a decoder, and an arithmetic unit. The amplifier receives a clamping force sensing signal generated by the force sensor and amplifies the clamping force sensing signal. The decoder is connected to the amplifier to convert the clamping force sensing signal into a digital measurement value. The arithmetic unit is connected to the decoder to perform arithmetic processing on the digital measurement value and present the clamping force sensing signal in a numerical form.

[0015] The control box has a signal connector at the bottom. One end of the power cord is connected to the force sensor, and the other end is connected to the signal connector, so that the control box and the force sensor can be electrically connected.

[0016] The main body also includes a nut and a movable block. The base has a groove, the nut is located in the groove, the screw is screwed to the nut, the movable block is fixed above the nut, and a fixed block is provided at the top of one end of the base.

[0017] It also includes a force multiplier unit, which includes a mechanical force multiplier mechanism and a fixed base. One end of the force multiplier mechanism abuts against the sensing unit, and the fixed base is fixed to one end of the base that is different from the fixed block.

[0018] The main body also includes a front dust cover assembly and a rear dust cover assembly, which are located on both sides of the movable block and cover the groove.

[0019] As described above, this utility model has a simple structure and is easy to operate. Through the setting of the force sensor and the electronic control box, the force sensor will emit a clamping force sensing signal at the moment of contact with the second thrust bearing. The electronic control box can receive the clamping force sensing signal, convert the clamping force sensing signal into a digital measurement value, perform calculation processing, and then transmit the clamping force sensing signal to a receiving end wirelessly so as to display or store and record the clamping force value, thereby achieving the effect of accurately clamping the workpiece. Attached Figure Description

[0020] Figure 1 This is a perspective view of a preferred embodiment of the present invention.

[0021] Figure 2 This is a perspective view of a preferred embodiment of the present invention from another angle.

[0022] Figure 3 This is an exploded view of a preferred embodiment of the present invention.

[0023] Figure 4 This is a cross-sectional view of a preferred embodiment of the present invention.

[0024] Figure 5 for Figure 4 A magnified view of a portion of the image.

[0025] Figure 6 This is a block diagram of a preferred embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of rotation of a preferred embodiment of the present invention.

[0027] Figure 8 This is a schematic diagram illustrating the reaction force generated by the screw in a preferred embodiment of the present invention. Detailed Implementation

[0028] Please see Figures 1 to 5 As shown, this utility model discloses a vise structure 100 with clamping force display, which includes:

[0029] A body 10 includes a base 11, a nut 12, a screw 13, and a movable block 14. The base 11 has a fixed block 112 at one end and a groove 111. The nut 12 is disposed in the groove 111, and the screw 13 is disposed within the base 11 and screwed to the nut 12. The screw 13 has a first end 132 and a second end 133 oppositely disposed. A stop ring 134 is provided on the outer periphery near the first end 132. The movable block 14 is fixed above the nut 12. Thus, when the screw 13 rotates, the nut 12 can move along a threaded section 131 of the screw 13, causing the nut 12 to move relative to or away from the fixed block 112, thereby facilitating the clamping of a workpiece 50 for processing operations. Figure 7 As shown.

[0030] The main body 10 also includes a front dust cover assembly 15 and a rear dust cover assembly 16. The front dust cover assembly 15 and the rear dust cover assembly 16 are located on both sides of the movable block 14 and cover the groove 111 to prevent dust or debris from entering the main body 10.

[0031] A sensing unit 20 includes a thrust bearing collar 21, a first thrust bearing 22, a second thrust bearing 23, and a force sensor 24. The thrust bearing collar 21 is tightly fitted onto the first end 132 of the screw 13, and one end edge of the thrust bearing collar 21 has an outwardly facing annular protrusion 211. The annular 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 fitted onto the thrust bearing collar 21. The force sensor 24 is located between the first thrust bearing 22 and the second thrust bearing 23. A first front flange is formed on each side of the first thrust bearing 22. The second thrust bearing 23 has a side portion 221 and a first rear side portion 222. The first front side portion 221 is tightly fitted with the thrust bearing collar 21. The first rear side portion 222 abuts against one end of the force sensor 24. The two sides of the second thrust bearing 23 form a second front side portion 231 and a second rear side portion 232, respectively. The second front side portion 231 is tightly fitted with the thrust bearing collar 21 and abuts against the ring protrusion 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 collar 21. The dimensional tolerance between the three is a static fit (transition fit).

[0032] A force multiplier unit 30 includes a fixed base 31 and a mechanical force multiplier mechanism 32. The fixed base 31 is fixed to one end of the base 11 that is different from the fixed block 112. One end of the force multiplier mechanism 32 passes through the fixed base 31 and abuts against the first front side 221 of the first thrust bearing 22.

[0033] An electrical 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 located below the electrical control box 40. One end of a power cord 42 connects the electrical control box 40 to the force sensor 24, and the other end connects to the signal connector 41. Figure 2 As shown, this allows the electronic control box 40 to be electrically connected to the force sensor 24.

[0034] See Figures 7 to 8 and paired Figure 5 As shown, when this utility model is to perform processing operations, the workpiece 50 is first placed on the top of the base 11. The force multiplier mechanism 32 is operated to drive the thrust bearing collar 21 and the screw 13 to rotate, so that the nut 12 moves the moving block 14 and can move closer to the fixed block 112 to achieve 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 ring protrusion 211 of the thrust bearing collar 21, and further causing the ring protrusion 211 to push against the second thrust bearing 23 and contact the force sensor 24. The force sensor 24 will emit a clamping force sensing signal at the moment of contact.

[0035] See Figure 6 As shown, the electronic control box 40 includes an amplifier 43, a decoder 44, and an arithmetic unit 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 decoder 44 is connected to the amplifier 43 and is used to convert the clamping force sensing signal into a digital measurement value. The arithmetic unit 45 is connected to the decoder 44 and is used to perform calculations on the digital measurement value so that the clamping force sensing signal can be presented in numerical form. The clamping force sensing signal is then transmitted wirelessly to a receiver 200. The receiver 200 can be a smartphone or a computer so that its screen 210 can simultaneously display or store the clamping force value, thereby achieving the effect of accurately clamping the workpiece.

[0036] The receiver 200 may also be equipped with the arithmetic unit 45. The decoder 44 converts the clamping force sensing signal into a digital measurement value and transmits it to the receiver 200 wirelessly. The receiver 200 then performs calculations on the digital measurement value.

Claims

1. A vise structure with a clamping force display, characterized by The utility model relates to a clamp force sensor, comprising: a body, the body includes a base and a screw rod, the screw rod is located in the base, the screw rod has oppositely arranged first end and second end, the screw rod is equipped with a stop ring on the outer periphery close to 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 rod, and the end edge of one end of the thrust bearing sleeve is outwardly provided with a ring protrusion, the ring protrusion abuts against the stop ring of the screw rod, the force sensor is sleeved on the thrust bearing sleeve; an electric control box, the electric control box is electrically connected with the force sensor.

2. The vise structure with a clamping force display according to claim 1, wherein The sensing unit further comprises 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, the two sides of the first thrust bearing form a first front side and a first rear side respectively, the first rear side abuts against one end of the force sensor, and the two sides of the second thrust bearing form a second front side and a second rear side respectively, the second front side abuts against the ring protrusion, and the second rear side abuts against the other end of the force sensor.

3. The vise structure with a clamping force display according to claim 2, wherein The first front side and the second front side are arranged in tight fit with the thrust bearing sleeve respectively.

4. The vise structure with a clamping force display according to claim 1, wherein The thrust bearing sleeve is arranged in tight fit with the first end of the screw rod.

5. The vise structure having a clamping force display according to claim 2, wherein The inner diameter size of the first rear side and the second rear side is greater than the outer diameter size of the thrust bearing sleeve, and the size tolerance among the three is static fit.

6. The vise structure with a clamping force display according to claim 1, wherein The electric control box comprises an amplifier, a decoder and an operator, the amplifier receives a clamping force sensing signal generated by the force sensor, and performs signal amplification processing on the clamping force sensing signal, the decoder is connected with the amplifier to convert the clamping force sensing signal into a digital measurement value, and the operator is connected with the decoder to perform operation processing on the above-mentioned digital measurement value, so that the clamping force sensing signal is presented in the form of a value.

7. The vise structure with a clamping force display according to claim 1, wherein A signal connector is arranged below the electric control box, one end of a power line is connected with the force sensor, and the other end is connected with the signal connector, so that the electric control box and the force sensor are electrically connected.

8. The vise structure having a clamp force display according to claim 1, wherein The body further comprises a nut and a moving block, the base has a groove, the nut is arranged in the groove, the screw rod is screwed on the nut, the moving block is fixedly connected above the nut, and a fixed block is arranged on the top of one end of the base.

9. The vise structure having a clamping force display according to claim 8, wherein Further comprising a force multiplication unit, the force multiplication unit comprises a mechanical force multiplication mechanism and a fixed seat, one end of the force multiplication mechanism abuts against the sensing unit, and the fixed seat is fixedly arranged on the base at one end different from the fixed block.

10. The vise structure having a clamping force display according to claim 8, wherein The body further comprises a front dust cover group and a rear dust cover group, the front dust cover group and the rear dust cover group are arranged on the two sides of the moving block and cover the groove.

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