Semi-automatic hydraulic bench clamp

Abstract

A semi-automatic hydraulic bench clamp comprises a fixed clamp and a movable clamp and further comprises a hydraulic cylinder driving the movable clamp to be close to the fixed clamp, a reset spring driving the movable clamp to be away from the fixed clamp and a pedal oil pump supplying oil to the hydraulic cylinder, the fixed clamp comprises a fixed clamp base and a fixed clamp head arranged on the fixed clamp base, and a through hole is formed in the fixed clamp base. The movable clamp comprises a long-strip-shaped movable clamp seat and a movable clamp head arranged at one end of the movable clamp seat, and the movable clamp seat penetrates through the through hole and is in sliding fit with the fixed clamp seat. Clamping or loosening is achieved by stepping on the pedal oil pump, and the clamping speed is increased; in addition, the hydraulic cylinder can provide strong pressure, clamping is firm, and looseness is not prone to occurring.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bench vice, especially a semi-automatic hydraulic bench vice. BACKGROUND

[0002] The bench vice is an essential tool for clamping workpieces in the field of machining, and the existing bench vice structure is generally provided with a fixed vice clamp and a movable vice clamp, the movement of the movable vice clamp is controlled by a lead screw to realize the clamping and loosening of the workpiece, and the handle is used to rotate the lead screw to drive the movable vice clamp to move forward and backward during operation, and the adjusting speed is slow. SUMMARY

[0003] The utility model provides a semi-automatic hydraulic bench vice, can fast clamping or loosening, has improved the clamping speed, and clamping fastening, and it is not easy to loosen.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a semi-automatic hydraulic bench vice, comprising a fixed clamp and a movable clamp, further comprising a hydraulic cylinder for driving the movable clamp to approach the fixed clamp, a reset spring for driving the movable clamp to move away from the fixed clamp, and a foot pedal oil pump for supplying oil to the hydraulic cylinder, the fixed clamp comprises a fixed clamp seat and a fixed clamp head arranged on the fixed clamp seat, a through hole is arranged on the fixed clamp seat, the movable clamp comprises a long strip-shaped movable clamp seat and a movable clamp head arranged at one end of the movable clamp seat, and the movable clamp seat passes through the through hole and is in sliding fit with the fixed clamp seat. The utility model principle: when needing to clamp a workpiece, the oil supply pedal of the foot pedal oil pump is stepped on to supply oil to the hydraulic cylinder, the hydraulic cylinder is elongated after oil is supplied, the hydraulic cylinder overcomes the tension of the reset spring and drives the movable clamp seat to move, the movable clamp seat drives the movable clamp head to approach the fixed clamp head until the workpiece is clamped, when needing to loosen the workpiece, the oil return pedal of the foot pedal oil pump is stepped on, the oil in the hydraulic cylinder is discharged to release pressure, under the action of the tension of the reset spring, the movable clamp seat resets and drives the movable clamp head to move away from the fixed clamp head, the utility model realizes clamping or loosening by stepping on the foot pedal oil pump, improves the clamping speed, in addition, the hydraulic cylinder can provide strong pressure, clamping is fastened, and it is not easy to loosen.

[0005] As an improvement, mounting ears are arranged on both sides of the fixed clamp seat, and first mounting holes are arranged on the mounting ears.

[0006] As improvement, the lower part of the movable clamp holder is provided with a mounting plate, the mounting plate is provided with a second mounting hole, the mounting plate is provided with a blocking seat, the bottom of the movable clamp holder is provided with a mounting groove, the hydraulic cylinder and the reset spring are arranged in the mounting groove, one end of the hydraulic cylinder abuts against the blocking seat, the other end of the hydraulic cylinder abuts against the inner wall of one end of the movable clamp holder, one end of the reset spring is connected with the blocking seat, and the other end of the reset spring is connected with the inner wall of one end of the movable clamp holder.

[0007] As improvement, the top of the end of the movable clamp holder away from the movable clamp head is provided with a limiting block.

[0008] As improvement, the foot oil pump comprises an oil tank, a pump body, an oil feeding pedal for driving the pump body to feed oil and an oil return pedal for driving the pump body to return oil.

[0009] As improvement, the foot oil pump is arranged below the workbench.

[0010] As improvement, the fixed clamp is arranged on the upper end of a supporting column, the lower end of the supporting column is provided with a fixing plate, and the foot oil pump is arranged on the fixing plate.

[0011] As improvement, the through hole of the fixed clamp holder is provided with a supporting seat, one end of the supporting seat extends out of the fixed holder, the supporting column is provided with a diagonal pull rod for supporting the supporting seat, the bottom of the movable clamp holder is provided with a mounting groove, the hydraulic cylinder and the reset spring are arranged in the mounting groove, one end of the hydraulic cylinder abuts against the supporting seat, the other end of the hydraulic cylinder abuts against the inner wall of one end of the movable clamp holder, one end of the reset spring is connected with the supporting seat, and the other end of the reset spring is connected with the inner wall of one end of the movable clamp holder.

[0012] The utility model discloses compared with prior art brings beneficial effect is:

[0013] The utility model discloses through treading foot oil pump realizes clamping or loosening, improves the clamping speed, in addition, hydraulic cylinder can provide powerful pressure, and clamping is fastened, and it is not easy to loosen. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the installation schematic view of example 1 table tongs.

[0015] Figure 2 It is the exploded view of example 1 table tongs.

[0016] Figure 3 It is example 2 table tongs perspective drawing I.

[0017] Figure 4 It is example 2 table tongs perspective drawing II.

[0018] Figure 5 It is example 2 table tongs side view.

[0019] Figure 6 Fig. 1 is a schematic view of a foot-operated oil pump. DETAILED DESCRIPTION

[0020] The utility model will be further described below in connection with the drawings of the specification. Example 1

[0021] As Figure 1 , 2The utility model discloses a kind of semi-automatic hydraulic bench vices, including fixed clamp 1, movable clamp 2, drive movable clamp 2 to be close to the hydraulic cylinder 6 of fixed clamp 1, reset spring 7 for driving movable clamp 2 away from fixed clamp 1 and the foot pedal oil pump 3 for supplying oil to hydraulic cylinder 6.The fixed clamp 1 is fixed on workbench 4, the foot pedal oil pump 3 is equipped below workbench 4, and the bench vice is controlled by stepping foot pedal oil pump 3, and it is convenient to operate.The fixed clamp 1 includes fixed clamp seat 11 and fixed clamp head 12 equipped on fixed clamp seat 11;The through hole 13 is equipped on the fixed clamp seat 11, the shape of the through hole 13 is similar with the shape of fixed clamp seat 11, and the through hole 13 is square hole;The both sides of the fixed clamp seat 11 are equipped with mounting lug 14, the first mounting hole is equipped on the mounting lug 14, and the mounting lug 14 is locked on workbench 4 by bolt, to fix the fixed clamp 1;The fixed clamp head 12 is L-shaped, and it is towards movable clamp, and it is used for clamping workpiece.The movable clamp 2 includes long strip movable clamp seat 21 and movable clamp head 22 equipped in movable clamp seat 21 one end;The cross-sectional shape of the movable clamp seat 21 is similar with the shape of through hole, and the movable clamp seat 21 passes through through hole and is slidably matched with fixed clamp seat 11, and movable clamp seat 21 can move back and forth under the guidance of fixed clamp seat 11;The top of the one end of the movable clamp seat 21 away from movable clamp head 22 is equipped with limit block 23, for limiting movable clamp seat 21 completely separates from fixed clamp seat 11;The movable clamp head 22 is L-shaped, and it is towards fixed clamp head 12, and the two are matched to clamp workpiece;The bottom of the movable clamp seat 21 is equipped with mounting groove along its length direction, and the hydraulic cylinder 6 and reset spring 7 are equipped in mounting groove, and the overall structure of the bench vice is compact and simple.The lower of the movable clamp seat 21 is equipped with mounting plate 5, the both sides of the mounting plate 5 are equipped with second mounting hole, and the second mounting hole corresponds with the first mounting hole, and bolt locks mounting lug 14 and mounting plate 5 simultaneously on workbench;The mounting plate 5 is equipped with blocking seat 51, and the blocking seat 51 is protruded on the mounting plate 5, the cylinder body of the hydraulic cylinder 6 is abutted with the side of blocking seat 51, for providing support force for the hydraulic cylinder 6, and the telescopic rod of the hydraulic cylinder 6 is abutted with the inner wall of one end of movable clamp seat 21, and when working, the telescopic rod of the hydraulic cylinder 6 is elongated and acts on one end of movable clamp seat 21, makes movable clamp seat 21 move relative to fixed clamp seat 11, and movable clamp head 22 is close to fixed clamp head 12;The reset spring 7 is located in the upper position of the hydraulic cylinder 6, and they will not interfere, one end of reset spring 7 is connected with the inner wall of movable clamp seat 21, and the other end of reset spring 7 is connected with the ring buckle on the top of blocking seat 51, and in the clamping state of the bench vice, reset spring 7 is in elongated state, after the hydraulic cylinder 6 is pressure released, reset spring 7 pulls movable clamp seat 21 and moves reset. Figure 6As shown, the foot oil pump 3 comprises an oil tank 34, a pump body 33, an oil feeding pedal 31 for driving the pump body 33 to feed oil, and an oil return pedal 32 for driving the pump body 33 to return oil; stepping on the oil feeding pedal 31, the pump body 33 delivers the hydraulic oil in the oil tank 34 to the hydraulic cylinder 6 to provide pressure for the hydraulic cylinder 6, and the clamping force of the vice is controlled by controlling the oil feeding amount; stepping on the oil return pedal 32, the driving needle drives the oil return check valve to be opened, so that the oil delivery pipe is directly communicated with the oil tank 34, the hydraulic oil in the hydraulic cylinder 6 is returned to the oil tank 34, and the hydraulic cylinder 6 is depressurized.

[0022] The utility model principle: when need to clamp work piece, use foot to tread foot oil pump 3's oil feeding pedal and give hydraulic cylinder 6 oil, hydraulic cylinder 6 lengthens after oiling, hydraulic cylinder 6 overcomes the pulling force of reset spring 7 and drives movable clamp holder 21 to move, movable clamp holder 21 drives movable chuck 22 to approach fixed chuck 12 until clamps work piece, when need to loosen work piece, use foot to tread foot oil pump 3's oil return pedal, and the oil in hydraulic cylinder 6 is discharged and depressurized, under the pulling force of reset spring 7, movable clamp holder 21 resets and drives movable chuck 22 to be far from fixed chuck 12, the utility model realizes clamping or loosening through foot to tread foot oil pump 3, improves the clamping speed, in addition, hydraulic cylinder 6 can provide powerful pressure, and clamping is fastened, and it is not easy to loosen. Example 2

[0023] As Figures 3 to 5As shown, a semi-automatic hydraulic bench vise includes a support column 8, a fixed clamp 1, a movable clamp 2, a hydraulic cylinder 6 that drives the movable clamp 2 towards the fixed clamp 1, a return spring 7 that drives the movable clamp 2 away from the fixed clamp 1, and a foot-operated oil pump 3 that supplies oil to the hydraulic cylinder 6. The support column 8 is an I-beam. The fixed clamp 1 fixes the upper end of the support column 8 and is connected by welding. The lower end of the support column 8 is provided with a fixing plate 81. The foot-operated oil pump is mounted on the fixing plate 81. The fixing plate 81 has fixing holes and can be directly fixed to the floor. The semi-automatic hydraulic bench vise of this embodiment can be sold and installed as a whole. The fixed clamp 1 includes a fixed clamp base 11 and a fixed clamp head 12 disposed on the fixed clamp base 11. The bottom of the fixed clamp base 11 is welded to the support column 8. The fixed clamp base 11 is provided with a through hole 13, the through hole 13 having a shape similar to that of the fixed clamp base 11, and the through hole 13 is a square hole. The fixed clamp head 12 is L-shaped and faces the movable clamp, and is used to clamp the workpiece. The movable clamp 2 includes a long, narrow movable clamp seat 21 and a movable chuck 22 located at one end of the movable clamp seat 21. The cross-sectional shape of the movable clamp seat 21 is similar to that of the through hole. The movable clamp seat 21 passes through the through hole and slides with the fixed clamp seat 11. The movable clamp seat 21 can move back and forth under the guidance of the fixed clamp seat 11. A limiting block 23 is provided at the top of the end of the movable clamp seat 21 away from the movable chuck 22 to prevent the movable clamp seat 21 from completely disengaging from the fixed clamp seat 11. The movable chuck 22 is L-shaped and faces the fixed chuck 12. The two work together to clamp the workpiece. The bottom of the movable clamp seat 21 is provided with a mounting groove along its length. The hydraulic cylinder 6 and the return spring 7 are located in the mounting groove. The overall structure of the vise is compact and simple. A support seat 83 is provided in the through hole of the fixed clamp 11. The support seat 83 is welded to the bottom of the fixed clamp 11. One end of the support seat 83 extends out of the fixed clamp 11. A diagonal tie rod 82 supporting the support seat 83 is provided on the support column 8. The cylinder body of the hydraulic cylinder 6 abuts against the support seat 83 to provide support force to the hydraulic cylinder 6. The telescopic rod of the hydraulic cylinder 6 abuts against the inner wall of one end of the movable clamp 21. During operation, the telescopic rod of the hydraulic cylinder 6 extends and acts on one end of the movable clamp 21, causing the movable clamp 21 to move relative to the fixed clamp 11, and the movable chuck 22 moves closer to the fixed chuck 12. The return spring 7 is located above the hydraulic cylinder 6, and the two do not interfere with each other. One end of the return spring 7 is connected to the inner wall of the movable clamp 21, and the other end of the return spring 7 is connected to the ring buckle on the top of the support seat 83. When the vise is clamped, the return spring 7 is in the extended state. After the hydraulic cylinder 6 is depressurized, the return spring 7 pulls the movable clamp 21 to move and reset. Figure 6As shown, the foot oil pump 3 comprises an oil tank 34, a pump body 33, an oil feeding pedal 31 for driving the pump body 33 to feed oil, and an oil return pedal 32 for driving the pump body 33 to return oil; stepping on the oil feeding pedal 31, the pump body 33 delivers hydraulic oil in the oil tank 34 to the hydraulic cylinder 6 to provide pressure for the hydraulic cylinder 6, and the clamping force of the clamp is controlled by controlling the oil feeding amount; stepping on the oil return pedal 32, the driving needle opens the oil return check valve, so that the delivery oil pipe is directly communicated with the oil tank 34, the hydraulic oil in the hydraulic cylinder 6 returns to the oil tank 34, and the hydraulic cylinder 6 is depressurized.

[0024] The utility model principle: when need to clamp work piece, use foot to tread foot oil pump 3's oil feeding pedal and give hydraulic cylinder 6 oil, hydraulic cylinder 6 lengthens after oiling, hydraulic cylinder 6 overcomes the tension of reset spring 7 and drives movable clamp holder 21 to move, movable clamp holder 21 drives movable chuck 22 to approach fixed chuck 12 until clamps work piece, when need to release work piece, use foot to tread foot oil pump 3's oil return pedal, and the oil in hydraulic cylinder 6 is discharged and depressurized, under the tension of reset spring 7, movable clamp holder 21 resets and drives movable chuck 22 to be far from fixed chuck 12, the utility model realizes clamping or loosening through foot to tread foot oil pump 3, improves the clamping speed, in addition, hydraulic cylinder 6 can provide powerful pressure, and clamping is fastened, and it is not easy to loosen.

Claims

1. A semi-automatic hydraulic bench vice comprising a fixed jaw and a movable jaw, characterised in that: The hydraulic cylinder drives the movable clamp to approach the fixed clamp, the reset spring drives the movable clamp to move away from the fixed clamp, and the foot oil pump supplies oil to the hydraulic cylinder.

2. A semi-automatic hydraulic bench vice according to claim 1, wherein: The two sides of the fixed clamp base are provided with mounting ears, and the mounting ears are provided with first mounting holes.

3. A semi-automatic hydraulic bench vice according to claim 1, wherein: The lower part of the movable clamp base is provided with a mounting plate, the mounting plate is provided with second mounting holes, the mounting plate is provided with a blocking seat, the bottom of the movable clamp base is provided with a mounting groove, the hydraulic cylinder and the reset spring are arranged in the mounting groove, one end of the hydraulic cylinder abuts against the blocking seat, the other end of the hydraulic cylinder abuts against the inner wall of one end of the movable clamp base, one end of the reset spring is connected with the blocking seat, and the other end of the reset spring is connected with the inner wall of one end of the movable clamp base.

4. A semi-automatic hydraulic bench vice according to claim 1, wherein: The top of one end of the movable clamp base away from the movable clamp head is provided with a limiting block.

5. A semi-automatic hydraulic bench vice according to claim 1, wherein: The foot oil pump comprises an oil tank, a pump body, an oil adding pedal for driving the pump body to add oil, and an oil returning pedal for driving the pump body to return oil.

6. A semi-automatic hydraulic bench vice according to claim 1, wherein: The fixed clamp is fixed on the workbench, and the foot oil pump is arranged below the workbench.

7. A semi-automatic hydraulic bench vice according to claim 1, wherein: The fixed clamp is arranged at the upper end of the supporting column, the lower end of the supporting column is provided with a fixed plate, and the foot oil pump is arranged on the fixed plate.

8. A semi-automatic hydraulic bench vice according to claim 7, wherein: The through hole of the fixed clamp base is provided with a supporting seat, one end of the supporting seat extends out of the fixed clamp base, the supporting column is provided with a diagonal pull rod for supporting the supporting seat, the bottom of the movable clamp base is provided with a mounting groove, the hydraulic cylinder and the reset spring are arranged in the mounting groove, one end of the hydraulic cylinder abuts against the supporting seat, the other end of the hydraulic cylinder abuts against the inner wall of one end of the movable clamp base, one end of the reset spring is connected with the supporting seat, and the other end of the reset spring is connected with the inner wall of one end of the movable clamp base.

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