Quick-change self-locking single-station bench vice

Abstract

The utility model discloses a quick change self -locking single -station bench vice belongs to the field of clamp, including base, be equipped with fixed clamp and the movable clamp of opposite fixed clamp movement on the base, be equipped with two different height's cushion block between fixed clamp and movable clamp, and two different height's cushion block support in the step face bottom of work piece, be equipped with the locating seat on the base of two cushion block outside, just the locating seat is located the same side of fixed clamp and movable clamp, be equipped with at least one locating rod on the locating seat, locating rod front end is equipped with pressure sensor, and locating rod front end can butt on work piece side. The above -mentioned structure can improve the positioning clamping efficiency of work piece, and positioning clamping is firm.

Description

Technical Field

[0001] This utility model relates to the field of clamps, specifically to a quick-change self-locking single-station bench vise. Background Technology

[0002] The machining of blank parts is usually done using ordinary bench vises. When the workpiece is clamped, there will be a certain offset between the part and the machining center. The conventional method is to adjust the equipment coordinates and align the parts for each product. This process will lead to increased machining time and wasted costs.

[0003] The proposed solution addresses a blank part with a step at the bottom, requiring a vise for positioning during machining before the top of the blank part is machined. However, with current vises, the bottom side of the blank part is suspended due to the step structure after clamping it, causing the blank part to become unstable when subjected to downward force during machining.

[0004] In view of the problems existing in the prior art, this utility model designs and manufactures a quick-change self-locking single-station bench vise to overcome the above defects. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a quick-change self-locking single-station vise, which can improve the positioning and clamping efficiency of the workpiece and ensure stable positioning and clamping.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quick-change self-locking single-station vise, including a base, wherein a fixed clamp and a movable clamp that moves relative to the fixed clamp are provided on the base; Two pads of different heights are provided between the fixed clamp and the movable clamp, and the two pads of different heights support the bottom of the stepped surface of the workpiece. The bases on the outer sides of the two pads are provided with positioning seats, and the positioning seats are located on the same side of the fixed clamp and the movable clamp. The positioning seats are provided with at least one positioning rod, and the front end of the positioning rod is provided with a pressure sensor. The front end of the positioning rod can abut against the side of the workpiece.

[0007] Preferably, the base is provided with a pad positioning groove, and the pad can be placed into the pad positioning groove.

[0008] Preferably, each of the two pads has several threaded holes on its top, and a height adjustment screw is screwed into each threaded hole; A locking nut is screwed onto the height adjustment screw.

[0009] Preferably, the base is provided with two fixed seats, and the two fixed seats are provided with rotating lead screws. The movable clamp is screwed to the lead screw between the two fixed seats by a lead screw nut. The fixed clamp is provided in two parts, and the two fixed clamps are respectively arranged on both sides of the fixed base.

[0010] Preferably, the lead screw is a trapezoidal lead screw.

[0011] Preferably, the base below the lead screw is provided with a sliding groove, and the bottom of the movable clamp is provided with a slider that slides and guides the sliding groove.

[0012] Preferably, a drive device is connected to a fixed seat extending from one end of the lead screw.

[0013] Preferably, another fixed seat extends from the other end of the lead screw, and the end of the lead screw extending from the fixed seat is provided with an external thread, on which a stop nut can be screwed.

[0014] Preferably, both the fixed clamp near the movable clamp and the movable clamp near the fixed clamp are provided with anti-slip structures.

[0015] Preferably, the base is provided with positioning holes, and the base is fixed to the processing machine tool platform through the positioning holes.

[0016] Preferably, a baffle is provided around the top of the base.

[0017] The advantages of this utility model are: 1. This utility model uses two pads of unequal height to support a workpiece with a stepped bottom surface, which solves the problem of unstable processing caused by the bottom side of the workpiece being suspended when clamping and positioning the workpiece in existing clamps; furthermore, combined with the pressure sensor at the front end of the positioning rod, it can promptly determine whether there is any clamping instability before or during processing, thus ensuring the final processing accuracy of the workpiece.

[0018] 2. The positioning rod of this utility model can play a role in positioning the workpiece during the initial placement of the workpiece, thereby improving the pre-positioning efficiency of the workpiece and enabling rapid changeover of batch products; during the later processing of the workpiece, it plays a role in monitoring the clamping stability of the workpiece, thus ensuring the processing quality of the workpiece.

[0019] 3. After the workpiece is clamped, the locking nut is screwed onto the end of the lead screw and abuts against the fixed seat, which can restrict the rotation of the lead screw and prevent the workpiece from becoming loose during processing. Attached Figure Description

[0020] Figure 1 A schematic diagram of a quick-change self-locking single-station bench vise; Figure 2 A top view of a quick-change self-locking single-station bench vise; Figure 3 A schematic diagram of the bottom structure of a quick-change self-locking single-station bench vise; Figure 4 This is a schematic diagram of a quick-change self-locking single-station vise pad with a height adjustment screw on top.

[0021] In the diagram: 1. Base; 2. Movable clamp; 3. Fixed clamp; 4. Pad; 5. Positioning seat; 6. Positioning rod; 7. Fixed seat; 8. Lead screw; 9. Lead screw nut; 10. Stop nut; 11. Slide groove; 12. Slider; 13. Baffle; 14. Height adjustment screw; 15. Locking nut. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0023] like Figures 1 to 4 As shown, a quick-change self-locking single-station vise includes a base 1, on which a fixed clamp 3 and a movable clamp 2 that moves relative to the fixed clamp 3 are provided. The workpiece is placed between the fixed clamp 3 and the movable clamp 2, and the workpiece can be clamped and positioned by the fixed clamp 3 and the movable clamp 2.

[0024] Since the workpiece has a stepped surface at the bottom, in order to ensure stable support at the bottom of the workpiece, two pads 4 of different heights are provided between the fixed clamp 3 and the movable clamp 2. The two pads 4 of different heights are supported at the bottom of the stepped surface of the workpiece. The above structure solves the problem of one side being suspended when the existing clamps clamp and position the workpiece because only one pad or no pad is provided at the bottom of the workpiece.

[0025] Positioning seats 5 are provided on the base 1 on the outer side of the two pads 4, and the positioning seats 5 are located on the same side of the fixed clamp 3 and the movable clamp 2. The positioning seats 5 can be selected to be close to the pad 4 with a larger height or the pad 4 with a smaller height, which can meet the usage requirements. The positioning seats 5 are provided with at least one positioning rod 6. The positioning rod 6 can play the role of positioning the workpiece when placing the workpiece in the early stage, which improves the pre-positioning efficiency of the workpiece and realizes the rapid changeover of batch products. Moreover, the positioning rod 6 can cooperate with the pad 4 to support the workpiece together.

[0026] The positioning rod 6 of this utility model is preferably equipped with a pressure sensor at its front end. The front end of the positioning rod 6 can abut against the side of the workpiece for pre-positioning. The pressure sensor plays a role in monitoring the clamping stability of the workpiece during subsequent processing, thus ensuring the processing quality of the workpiece.

[0027] The purpose of the above structure is that when the workpiece is placed, the positioning of the workpiece is completed by only one pad 4 and the positioning rod 6. However, in reality, due to the height difference of the step surface of the workpiece itself, the other pad 4 is suspended between the bottom of the workpiece and the bottom of the workpiece. The operator cannot observe the contact between the bottom step surface of the workpiece and the other pad 4. However, in the later processing, once the suspended position is subjected to a downward processing force, it will cause the workpiece to tilt. At this time, the pressure sensor can quickly sense the pressure signal of the pressure sensor due to the tilt of the workpiece, so that the operator can make timely adjustments.

[0028] The base 1 preferably has a pad positioning groove, into which the pad 4 can be placed to prevent the pad 4 from shifting due to vibration during processing. The tops of the two pads 4 preferably have several threaded holes, and height adjustment screws 14 are screwed into the threaded holes. The support height can be indirectly adjusted by the height adjustment screws 14. Locking nuts 15 are screwed onto the height adjustment screws 14 to prevent the height adjustment screws 14 from rotating.

[0029] The base 1 of this utility model is provided with two fixed seats 7, and the two fixed seats 7 are provided with rotating lead screws 8. The lead screws 8 are preferably trapezoidal lead screws. The movable clamps 2 are screwed to the lead screws 8 between the two fixed seats 7 by lead screw nuts 9. It should be noted that the top height of the two pads 4 of this utility model is preferably greater than the height of the lead screws 8 to avoid interference between the bottom of the workpiece and the lead screws 8.

[0030] Preferably, there are two fixed clamps 3, which are respectively set on both sides of a fixed base 7. The above structure forms a three-point clamping with the movable clamp 2, which further improves the stability of clamping.

[0031] The base 1 below the lead screw 8 is provided with a slide groove 11. The bottom of the movable clamp 2 is provided with a slider 12 that slides and guides with the slide groove 11. One end of the lead screw 8 extends out to a fixed seat 7 and is connected to a drive device. The drive device can be a servo motor or other rotation drive device, or a rotation handle can be directly selected.

[0032] Another fixed seat 7 extends from the other end of the lead screw 8. The end of the lead screw 8 extending from the fixed seat 7 is provided with an external thread, on which a stop nut 10 can be screwed. After the workpiece is clamped, the stop nut 10 is screwed onto the end of the lead screw 8 and abuts against the fixed seat 7, which can restrict the rotation of the lead screw 8 and prevent the workpiece from becoming loose during the processing.

[0033] In addition, to further improve the stability of clamping, the fixed clamp 3 near the movable clamp 2 and the movable clamp 2 near the fixed clamp 3 are preferably provided with anti-slip structures, such as anti-slip stripes or anti-slip grooves.

[0034] The base 1 is provided with positioning holes, and the base 1 is fixed to the processing machine tool platform through the positioning holes. Preferably, a baffle 13 is provided around the top of the base 1 to block the debris generated during the processing.

[0035] The specific clamping process of this utility model is as follows: First, the base 1 is positioned on the machine tool platform through the positioning hole and positioning pin. Then, a suitable pad 4 is selected according to the size of the workpiece. The pad 4 is placed in the pad positioning groove. After the setting is completed, the workpiece is placed on the pad 4 and one side of the workpiece abuts against the front end of the positioning rod 6. After positioning, the movable clamp 2 is moved forward by rotating the lead screw 8, and the workpiece is clamped at three points by the fixed clamps 3 on both sides and the movable clamp 2. After clamping, the lead screw 8 is locked by the stop nut 10 to prevent the lead screw 8 from vibrating, and then machining is performed; After processing is complete, loosen the stop nut 10, rotate the lead screw 8 in the opposite direction, and remove the workpiece.

[0036] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A quick-change self-locking single-station bench vise, characterized in that, Includes a base (1), on which a fixed clamp (3) and a movable clamp (2) that moves relative to the fixed clamp (3) are provided; Two pads (4) of different heights are provided between the fixed clamp (3) and the movable clamp (2), and the two pads (4) of different heights support the bottom of the step surface of the workpiece. A positioning seat (5) is provided on the base (1) on the outside of the two pads (4), and the positioning seat (5) is located on the same side of the fixed clamp (3) and the movable clamp (2). At least one positioning rod (6) is provided on the positioning seat (5), and a pressure sensor is provided at the front end of the positioning rod (6). The front end of the positioning rod (6) can abut against the side of the workpiece.

2. The quick-change self-locking single-station bench vise according to claim 1, characterized in that, The base (1) is provided with a pad positioning groove, and the pad (4) can be placed in the pad positioning groove.

3. The quick-change self-locking single-station vise according to claim 1, characterized in that, Both of the pads (4) have several threaded holes on their tops, and height adjustment screws (14) are screwed into the threaded holes. A locking nut (15) is screwed onto the height adjustment screw (14).

4. The quick-change self-locking single-station vise according to claim 1, characterized in that, The base (1) is provided with two fixed seats (7), and the two fixed seats (7) are provided with rotating lead screws (8). The movable clamp (2) is screwed to the lead screw (8) between the two fixed seats (7) by lead screw nuts (9). Two fixed clamps (3) are provided, and the two fixed clamps (3) are respectively arranged on both sides of a fixed base (7).

5. A quick-change self-locking single-station vise according to claim 4, characterized in that, The lead screw (8) is configured as a trapezoidal lead screw.

6. A quick-change self-locking single-station vise according to claim 4, characterized in that, The base (1) below the lead screw (8) is provided with a sliding groove (11), and the bottom of the movable clamp (2) is provided with a slider (12) that slides and guides the sliding groove (11).

7. A quick-change self-locking single-station vise according to claim 4, characterized in that, One end of the lead screw (8) extends into a fixed seat (7) and is connected to a drive device.

8. A quick-change self-locking single-station vise according to claim 7, characterized in that, The other end of the lead screw (8) extends into another fixed seat (7), and the end of the lead screw (8) extending into the fixed seat (7) is provided with an external thread, on which a stop nut (10) can be screwed.

9. A quick-change self-locking single-station vise according to claim 1, characterized in that, The fixed clamp (3) near the movable clamp (2) and the movable clamp (2) near the fixed clamp (3) are both provided with anti-slip structures.

10. A quick-change self-locking single-station vise according to claim 1, characterized in that, The base (1) is provided with positioning holes, and the base (1) is fixed to the processing machine tool platform through the positioning holes; A baffle (13) is provided around the top of the base (1).

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