Workpiece overturning tool

Abstract

The utility model provides a workpiece overturning tool. The workpiece overturning tool comprises a positioning seat and a clamping piece. An accommodating part is arranged on the positioning seat; the first end of the clamping piece can be detachably inserted into the containing part and matched with the containing part, the containing part can be completely filled with the first end after the first end is inserted into the containing part, and the second end of the clamping piece is used for clamping an object workpiece; the cross section of the containing part and the cross section of the first end are both non-circular rotational symmetry figures, and the plane where the cross sections are located is perpendicular to the axis of the containing part. Based on the technical scheme of the utility model, the clamping piece is matched with the accommodating part of the positioning seat, so that the clamping piece can be overturned so as to overturn the object workpiece clamped on the clamping piece, and the dismounting and the overturning operations of the clamping piece relative to the accommodating part are much simpler and more convenient than the re-clamping of the object workpiece; therefore, the work efficiency is greatly improved on the premise that the workpiece is overturned by the workpiece overturning tool.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping tooling, in particular to a workpiece turning tooling. Background Art

[0002] At present, the processing of workpieces often involves all sides of the workpiece, so it is necessary to adjust the orientation of the workpiece. At present, the method of disassembling the workpiece and adjusting the orientation before re-clamping is mostly adopted, but multiple clamping operations are cumbersome and the production efficiency is low. For example, wire cutting processing generally adopts the clamping form, and the clamping process requires locking, calibration and other operations, which are relatively cumbersome. For the multi-faceted processing of the front and side of a part, multiple clamping is required, which is time-consuming. The side processing and clamping of some parts are even more troublesome. Especially for some small inserts, the clamping position is limited, and the adjustment of different orientations requires the use of multiple conventional clamping tools for coordination, which further reduces the work efficiency. It may even happen that the clamping time of small inserts is longer than the processing time, so it is urgently needed to be improved. Utility Model Content

[0003] In order to solve the problems of complicated operation and low efficiency in the multiple clamping method used in the prior art for processing multiple surfaces of a workpiece, the utility model proposes a workpiece turning tool.

[0004] The utility model provides a workpiece turning tool, comprising:

[0005] A positioning seat, wherein a receiving portion is formed on the positioning seat; and

[0006] A clamping member, wherein a first end of the clamping member can be detachably inserted into the receiving portion and cooperate with the receiving portion, and the first end can completely fill the receiving portion after being inserted into the receiving portion, and a second end of the clamping member is used for clamping a target workpiece;

[0007] Wherein, the cross section of the accommodation portion and the cross section of the first end are both non-circular rotationally symmetrical figures, and the plane where the cross section is located is perpendicular to the axis of the accommodation portion.

[0008] In one embodiment, the receiving portion is a hole whose inner diameter gradually and monotonically changes along its axial direction, and the first end of the clamping member is configured to be conical and can be fitted into the receiving portion through the end with a large opening of the conical hole.

[0009] In one embodiment, the accommodating portion and the first end of the clamping member are both configured as a regular pyramid structure, and the angle between the side surface of the regular pyramid structure and its axis is in the range of 10° to 30°.

[0010] In one embodiment, the cross-sectional shapes of the accommodation portion and the first end perpendicular to the axial direction of the accommodation portion are both square.

[0011] In one embodiment, the second end of the clamp is constructed with a clamping step, and a pressure plate is detachably provided on the surface of the clamp, the ends of the pressure plate correspond to the clamping step and are spaced apart from each other, and the ends of the pressure plate and the clamping step can cooperate with each other to clamp the target workpiece.

[0012] In one embodiment, the pressure plate is provided with a strip hole and a first bolt is arranged through it, the extension direction of the strip hole is along the direction of the line between its position and the end of the pressure plate, the bottom of the first bolt abuts against the surface of the clamp, and the surface of the clamp is provided with a second bolt that cooperates with the strip hole.

[0013] In one embodiment, the second bolt is located between the first bolt and an end of the pressing plate, and the second bolt, the first bolt, and an end of the pressing plate are located on the same straight line.

[0014] In one embodiment, it further comprises:

[0015] A driving assembly, which is arranged on a side of the positioning seat away from the clamping member, and the driving assembly includes a transmission rod, the transmission rod partially extends into the accommodating portion and is connected to the first end of the clamping member;

[0016] Wherein, the transmission rod can telescopically move to push out or pull the first end of the clamping member into the accommodating portion, and the transmission rod and the first end can rotate relative to each other or the transmission rod and the main body of the driving assembly can rotate relative to each other; or

[0017] The transmission rod can be telescopic and rotatable to push the first end of the clamping member out of or pull it into the accommodating portion, and can drive the clamping member to flip when the first end is pushed out of the accommodating portion.

[0018] In one embodiment, the transmission rod is connected to the output shaft of the driving assembly through a connecting mechanism, and the connecting mechanism includes a first connector and a second connector;

[0019] The first connector is sleeved on the end of the output shaft and abuts against the positioning shoulder of the output shaft, the end of the output shaft is matched with a nut for locking the first connector, the second connector is sleeved on the end of the transmission rod, and the second connector and the first connector are nested with each other and connected by threads, so that the end of the transmission rod abuts against the end of the output shaft;

[0020] Wherein, the transmission rod and the second connecting head are clearance-fitted so as to be able to rotate relative to each other.

[0021] In one embodiment, the first end of the clamping member is provided with an assembly screw hole, and the transmission rod is threadedly matched with the assembly screw hole.

[0022] The above technical features can be combined in various suitable ways or replaced by equivalent technical features as long as the purpose of the utility model can be achieved.

[0023] The workpiece turning tool provided by the utility model has at least the following beneficial effects compared with the prior art:

[0024] The workpiece turning tool of the utility model can realize the turning of the clamping piece and thus turn over the target workpiece clamped thereon based on the cooperation between the clamping piece and the accommodating portion of the positioning seat. The operation of disassembling and turning over the clamping piece relative to the accommodating portion is much simpler than re-clamping the target workpiece. Therefore, the workpiece turning tool of the utility model greatly improves the work efficiency under the premise of realizing the turning over of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0026] Figure 1 A three-dimensional diagram showing the tooling of the present invention;

[0027] Figure 2 A top view of the tooling of the utility model is shown;

[0028] Figure 3 Shows Figure 2 Schematic diagram of the structure of the AA section;

[0029] Figure 4 A cross-sectional view showing a positioning seat of the tooling of the utility model;

[0030] Figure 5 A side view of a fixture of the tooling of the present invention is shown;

[0031] Figure 6 A cross-sectional view showing a first connector of the tooling of the present invention;

[0032] Figure 7 A cross-sectional view of the second connector of the tooling of the present invention is shown.

[0033] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0034] Reference numerals:

[0035] 1-positioning seat, 11-accommodating portion, 2-clamping piece, 21-clamping step, 22-second bolt, 23-assembly screw hole, 3-driving assembly, 31-transmission rod, 311-second nut, 32-output shaft, 4-target workpiece, 5-pressing plate, 51-strip hole, 52-first bolt, 6-connecting mechanism, 61-first connecting head, 62-second connecting head, 63-first nut, 64-gasket, 7-base. DETAILED DESCRIPTION

[0036] The utility model will be further described below in conjunction with the accompanying drawings.

[0037] Example 1

[0038] The embodiment of the utility model provides a workpiece turning tool, which includes a positioning seat 1 and a clamping member 2. The positioning seat 1 is provided with a receiving portion 11; the first end of the clamping member 2 can be detachably inserted into the receiving portion 11 and matched with the receiving portion 11, and the first end can completely fill the receiving portion 11 after being inserted into the receiving portion 11, and the second end of the clamping member 2 is used to clamp the target workpiece 4.

[0039] The cross section of the accommodating portion 11 and the cross section of the first end are both non-circular rotationally symmetrical figures, and the plane where the cross section is located is perpendicular to the axis of the accommodating portion 11 .

[0040] Specifically, the main purpose of the turning tool proposed by the utility model is to meet the turning needs of the clamped workpiece, so that the processing direction of the workpiece can be adjusted without re-clamping the workpiece, so as to process different surfaces of the workpiece. Figure 1 As shown, the workpiece turning tool mainly includes two parts: a positioning seat 1 and a clamping piece 2. The positioning seat 1 is provided with a receiving portion 11 for the clamping piece 2 to cooperate with. The first end of the clamping piece 2 can be accommodated in the receiving portion 11. The matching relationship between the two is only the relationship of containing and being contained without any other fixed connection relationship, that is, the clamping piece 2 can be placed in the receiving portion 11 and can also be taken out from the receiving portion 11.

[0041] Based on the need to achieve the goal of flipping the workpiece, the utility model further designs the accommodating portion 11 and the first end of the clamping member 2 in terms of shape and structure. First, the accommodating portion 11 and the first end of the clamping member 2 are designed to be consistent in shape and size, so that the first end of the clamping member 2 can completely fill the accommodating portion 11 after being fitted into the accommodating portion 11, thereby ensuring the stability of the fit between the two. Secondly, with respect to the shapes of the accommodating portion 11 and the first end of the clamping member 2, the shapes of the cross sections of the two perpendicular to the axial direction of the accommodating portion 11 are set to be rotationally symmetrical figures and not circular, so that the clamping member 2 can be re-fitted into the accommodating portion 11 after flipping a certain angle, thereby realizing the flipping of the workpiece without re-clamping.

[0042] When used specifically, as shown in the attached figure Figure 1 As shown, the target workpiece 4 is first clamped on the second end of the fixture 2, and then the first end of the fixture 2 is inserted into the receiving portion 11 in a corresponding posture according to the processing sequence of each surface of the target workpiece 4, so that the surface to be processed first faces the processing tool. For example, in this embodiment, the fixture 2 is assembled as a whole in a lying posture, and the processing tool is set on the top, so when installing the fixture 2, it is necessary to make the surface of the target workpiece 4 to be processed first face upward. After the current surface processing is completed, the fixture 2 is relatively pulled out from the receiving portion 11, and after flipping a certain angle, the surface to be processed next faces the tool, and then the fixture 2 is reinserted into the receiving portion 11.

[0043] The workpiece flipping tool of the utility model can realize the flipping of the clamping member 2 and thus flip the target workpiece 4 clamped thereon based on the cooperation between the clamping member 2 and the accommodating portion 11 of the positioning seat 1. The disassembly and assembly and flipping operations of the clamping member 2 relative to the accommodating portion 11 are much simpler than re-clamping the target workpiece 4. Therefore, the workpiece flipping tool of the utility model greatly improves the work efficiency under the premise of realizing the flipping of the workpiece.

[0044] In addition, under the premise of ensuring that the shapes of the cross sections of the receiving portion 11 and the first end perpendicular to the axial direction of the receiving portion 11 are rotationally symmetrical figures and are not circular, the specific shape of the rotationally symmetrical figure can be selected according to the processing needs and the structure of the workpiece. For example, in the present embodiment, the target workpiece 4 needs to process four faces within a circumferential angle (two adjacent faces are perpendicular), so the shapes of the cross sections of the receiving portion 11 and the first end perpendicular to the axial direction of the receiving portion 11 are both set to squares, so that the minimum angle for the fixture 2 to flip once is 90°, which matches the processing needs of the workpiece. At the same time, according to actual conditions, the rotationally symmetrical figure can be rotated into a regular polygon such as a square or a regular hexagon; other rotationally symmetrical figures can also be selected, such as a cross or a regular pentagon.

[0045] Furthermore, the accommodation portion 11 is a hole whose inner diameter gradually and monotonically changes along its axial direction. The first end of the clamping member 2 is configured to be conical and can be fitted into the accommodation portion 11 through the large opening end of the conical hole.

[0046] Specifically, as shown in the attached figure Figure 3 and Figure 4 As shown, the accommodating portion 11 and the first end of the clamping member 2 are both tapered structures as a whole, and the tapered structure can achieve axial positioning, that is, the first end of the clamping member 2 can only enter the accommodating portion 11 from the large hole end of the accommodating portion 11, and after the clamping member 2 is inserted into the accommodating portion 11, it will abut against the hole wall of the accommodating portion 11 in the axial direction to achieve positioning, indicating that it is inserted into place.

[0047] In addition, during the design process, it was found through early experimental operations that the conical design can achieve axial positioning, and also has an unexpected effect, that is, it can also automatically correct the cooperation between the receiving portion 11 and the clamping member 2 in the circumferential direction. Specifically, the specific operation of flipping the clamping member 2 is very simple and can actually be done manually, so the control of the flipping angle of the clamping member 2 may not be very precise. For example, in the attached figure Figure 1 In the embodiment shown, the receiving portion 11 is a square hole, and the minimum angle unit of the clamp 2 flipping is 90°, so that it can be aligned with the receiving portion 11 after flipping, and the angle of manual flipping is difficult to accurately control to 90°. Therefore, in fact, there is a high probability that there is a certain angle difference between the clamp 2 and the receiving portion 11 in the circumferential direction after flipping. At this time, due to the conical design of the receiving portion 11 and the clamp 2, in the case of an angle difference, the first end of the clamp 2 can first be at least partially inserted into the receiving portion 11 (because the diameter of one end of the large opening of the receiving portion 11 is larger than the end of the first end of the clamp 2), and then in the process of the clamp 2 continuing to be inserted into the receiving portion 11, through the contact and cooperation between the inclined surfaces of the conical outer surfaces of the two, the clamp 2 can be automatically guided to flip a certain angle, thereby correcting the angle difference between the receiving portion 11 in the circumferential direction, compensating for the accuracy deviation of manual flipping, so that the first end of the clamp 2 can be correctly embedded in the receiving portion 11.

[0048] Furthermore, the accommodating portion 11 and the first end of the clamping member 2 are both constructed as a regular pyramid structure, and the angle between the side surface of the regular pyramid structure and its axis is in the range of 10° to 30°.

[0049] Specifically, for a cone, when the bottom diameter is constant, the angle between the side and the axis directly affects the axial length of the cone, and the larger the angle between the side and the axis, the shorter the axial length of the cone. The axial length of the cone determines the length and area of ​​the matching portion between the accommodating portion 11 and the first end of the clamp 2. Since the second end of the clamp 2 is clamped with the target workpiece 4, the first end of the clamp 2 needs to balance the effect of the gravity of the target workpiece 4 on the clamp 2 by matching with the accommodating portion 11. Therefore, in this embodiment, the range of values ​​for the angle between the side and the axis is limited to avoid the axial length of the cone being too short due to an excessively large angle, thereby effectively improving the reliability of the matching between the accommodating portion 11 and the first end of the clamp 2.

[0050] In addition, the angle between the tapered side and its axis needs to be considered in order to achieve the matching correction between the receiving portion 11 and the clamping member 2, so the angle should not be too small. Figure 4 As shown, in this embodiment, the angle between the tapered side and its axis can be optionally set to 15°.

[0051] Example 2

[0052] This embodiment is a further improvement on the basis of Embodiment 1, and some repetitive contents may refer to Embodiment 1.

[0053] The embodiment of the utility model provides a workpiece turning tool, which includes a positioning seat 1 and a clamping member 2. The positioning seat 1 is provided with a receiving portion 11; the first end of the clamping member 2 can be detachably inserted into the receiving portion 11 and matched with the receiving portion 11, and the first end can completely fill the receiving portion 11 after being inserted into the receiving portion 11, and the second end of the clamping member 2 is used to clamp the target workpiece 4.

[0054] The cross section of the accommodating portion 11 and the cross section of the first end are both non-circular rotationally symmetrical figures, and the plane where the cross section is located is perpendicular to the axis of the accommodating portion 11 .

[0055] Specifically, the main purpose of the turning tool proposed by the utility model is to meet the turning needs of the clamped workpiece, so that the processing direction of the workpiece can be adjusted without re-clamping the workpiece, so as to process different surfaces of the workpiece. Figure 1 As shown, the workpiece turning tool mainly includes two parts: a positioning seat 1 and a clamping piece 2. The positioning seat 1 is provided with a receiving portion 11 for the clamping piece 2 to cooperate with. The first end of the clamping piece 2 can be accommodated in the receiving portion 11. The matching relationship between the two is only the relationship of containing and being contained without any other fixed connection relationship, that is, the clamping piece 2 can be placed in the receiving portion 11 and can also be taken out from the receiving portion 11.

[0056] Based on the need to achieve the goal of flipping the workpiece, the utility model further designs the accommodating portion 11 and the first end of the clamping member 2 in terms of shape and structure. First, the accommodating portion 11 and the first end of the clamping member 2 are designed to be consistent in shape and size, so that the first end of the clamping member 2 can completely fill the accommodating portion 11 after being fitted into the accommodating portion 11, thereby ensuring the stability of the fit between the two. Secondly, with respect to the shapes of the accommodating portion 11 and the first end of the clamping member 2, the shapes of the cross sections of the two perpendicular to the axial direction of the accommodating portion 11 are set to be rotationally symmetrical figures and not circular, so that the clamping member 2 can be re-fitted into the accommodating portion 11 after flipping a certain angle, thereby realizing the flipping of the workpiece without re-clamping.

[0057] When used specifically, as shown in the attached figure Figure 1As shown, the target workpiece 4 is first clamped on the second end of the fixture 2, and then the first end of the fixture 2 is inserted into the receiving portion 11 in a corresponding posture according to the processing sequence of each surface of the target workpiece 4, so that the surface to be processed first faces the processing tool. For example, in this embodiment, the fixture 2 is assembled as a whole in a lying posture, and the processing tool is set on the top, so when installing the fixture 2, it is necessary to make the surface of the target workpiece 4 to be processed first face upward. After the current surface processing is completed, the fixture 2 is relatively pulled out from the receiving portion 11, and after flipping a certain angle, the surface to be processed next faces the tool, and then the fixture 2 is reinserted into the receiving portion 11.

[0058] Furthermore, the accommodation portion 11 is a hole whose inner diameter gradually and monotonically changes along its axial direction. The first end of the clamping member 2 is configured to be conical and can be fitted into the accommodation portion 11 through the large opening end of the conical hole.

[0059] Specifically, as shown in the attached figure Figure 3 and Figure 4 As shown, the accommodating portion 11 and the first end of the clamping member 2 are both tapered structures as a whole, and the tapered structure can achieve axial positioning, that is, the first end of the clamping member 2 can only enter the accommodating portion 11 from the large hole end of the accommodating portion 11, and after the clamping member 2 is inserted into the accommodating portion 11, it will abut against the hole wall of the accommodating portion 11 in the axial direction to achieve positioning, indicating that it is inserted into place.

[0060] Furthermore, the accommodating portion 11 and the first end of the clamping member 2 are both constructed as a regular pyramid structure, and the angle between the side surface of the regular pyramid structure and its axis is in the range of 10° to 30°.

[0061] Specifically, for a cone, when the bottom diameter is constant, the angle between the side and the axis directly affects the axial length of the cone, and the larger the angle between the side and the axis, the shorter the axial length of the cone. The axial length of the cone determines the length and area of ​​the matching portion between the accommodating portion 11 and the first end of the clamp 2. Since the second end of the clamp 2 is clamped with the target workpiece 4, the first end of the clamp 2 needs to balance the effect of the gravity of the target workpiece 4 on the clamp 2 by matching with the accommodating portion 11. Therefore, in this embodiment, the range of values ​​for the angle between the side and the axis is limited to avoid the axial length of the cone being too short due to an excessively large angle, thereby effectively improving the reliability of the matching between the accommodating portion 11 and the first end of the clamp 2.

[0062] Furthermore, the second end of the clamping member 2 is constructed with a clamping step 21, and a pressure plate 5 is detachably provided on the surface of the clamping member 2. The ends of the pressure plates 5 correspond to the clamping step 21 and are spaced apart from each other. The ends of the pressure plates 5 and the clamping step 21 can cooperate with each other to clamp the target workpiece 4.

[0063] Specifically, as shown in the attached figure Figures 1 to 3 As shown, the second end of the clamp 2 is clamped to the target workpiece 4 through the constructed clamping step 21 and the provided pressing plate 5. The pressing plate 5 is provided on a side surface of the clamp 2 (hereinafter referred to as the first surface for the convenience of writing), and the end of the pressing plate 5 extends to correspond to the second end of the clamp 2. The clamping step 21 is structurally equivalent to removing the portion of the second end of the clamp 2 close to its first surface, and the plane where the step surface of the clamping step 21 is located is parallel to the plane where the first surface of the clamp 2 is located and is spaced a certain distance apart. Therefore, the step surface of the clamping step 21 actually corresponds to the end of the pressing plate 5 and is spaced a certain distance apart, so that the space in the interval can be used to clamp the target workpiece 4.

[0064] Furthermore, a strip hole 51 is provided on the pressure plate 5 and a first bolt 52 is arranged through it. The extension direction of the strip hole 51 is along the direction of the line between its position and the end of the pressure plate 5. The bottom of the first bolt 52 abuts against the surface of the clamp 2. The surface of the clamp 2 is provided with a second bolt 22 that cooperates with the strip hole 51.

[0065] Specifically, the pressing plate 5 and the clamping member 2 are matched with each other through a bolt structure, and the relative position is adjusted based on the bolt structure to adapt to target workpieces 4 of different specifications and sizes. Figure 1 and Figure 3 As shown, the pressure plate 5 is firstly provided with a first bolt 52 and a strip hole 51; the bottom of the first bolt 52 abuts against the surface of the clamp 2, so that a gap of a certain width can be defined between the pressure plate 5 and the clamp 2, and the width of the gap can be adjusted by rotating the first bolt 52 according to the thickness of the clamped part of the target workpiece 4; and the strip hole 51 is used to cooperate with the second bolt 22 provided on the clamp 2, and the second bolt 22 is mainly used to limit the cooperation between the pressure plate 5 and the clamp 2 to prevent the pressure plate 5 from being separated from the clamp 2. In addition, the cooperation between the strip hole 51 and the second bolt 22 can also realize the movement of the pressure plate 5, thereby realizing the adjustment of the protruding length of the end of the pressure plate 5 relative to the second end of the clamp 2, so as to meet the clamping needs of different target workpieces 4.

[0066] Optionally, the second bolt 22 is located between the first bolt 52 and the end of the pressing plate 5, and the second bolt 22, the first bolt 52 and the end of the pressing plate 5 are located on the same straight line.

[0067] Specifically, the relative positions of the second bolt 22, the first bolt 52 and the end of the pressing plate 5 are mainly arranged to achieve the stability of the cooperation between the pressing plate 5 and the clamping member 2. Figure 3As shown, the first bolt 52 and the clamped object workpiece 4 limit the freedom of movement of the pressure plate 5 in the direction close to the clamp 2 at both ends, while the second bolt 22 limits the freedom of movement of the pressure plate 5 in the direction away from the clamp 2 in the middle, so that the entire matching structure is more balanced.

[0068] Example 3

[0069] This embodiment is a further improvement on the above embodiment, and some repetitive contents may refer to the above embodiment.

[0070] The embodiment of the utility model provides a workpiece turning tool, which includes a positioning seat 1 and a clamping member 2. The positioning seat 1 is provided with a receiving portion 11; the first end of the clamping member 2 can be detachably inserted into the receiving portion 11 and matched with the receiving portion 11, and the first end can completely fill the receiving portion 11 after being inserted into the receiving portion 11, and the second end of the clamping member 2 is used to clamp the target workpiece 4.

[0071] The cross section of the accommodating portion 11 and the cross section of the first end are both non-circular rotationally symmetrical figures, and the plane where the cross section is located is perpendicular to the axis of the accommodating portion 11 .

[0072] Specifically, the main purpose of the turning tool proposed by the utility model is to meet the turning needs of the clamped workpiece, so that the processing direction of the workpiece can be adjusted without re-clamping the workpiece, so as to process different surfaces of the workpiece. Figure 1 As shown, the workpiece turning tool mainly includes two parts: a positioning seat 1 and a clamping piece 2. The positioning seat 1 is provided with a receiving portion 11 for the clamping piece 2 to cooperate with. The first end of the clamping piece 2 can be accommodated in the receiving portion 11. The matching relationship between the two is only the relationship of containing and being contained without any other fixed connection relationship, that is, the clamping piece 2 can be placed in the receiving portion 11 and can also be taken out from the receiving portion 11.

[0073] Based on the need to achieve the goal of flipping the workpiece, the utility model further designs the accommodating portion 11 and the first end of the clamping member 2 in terms of shape and structure. First, the accommodating portion 11 and the first end of the clamping member 2 are designed to be consistent in shape and size, so that the first end of the clamping member 2 can completely fill the accommodating portion 11 after being fitted into the accommodating portion 11, thereby ensuring the stability of the fit between the two. Secondly, with respect to the shapes of the accommodating portion 11 and the first end of the clamping member 2, the shapes of the cross sections of the two perpendicular to the axial direction of the accommodating portion 11 are set to be rotationally symmetrical figures and not circular, so that the clamping member 2 can be re-fitted into the accommodating portion 11 after flipping a certain angle, thereby realizing the flipping of the workpiece without re-clamping.

[0074] When used specifically, as shown in the attached figure Figure 1As shown, the target workpiece 4 is first clamped on the second end of the fixture 2, and then the first end of the fixture 2 is inserted into the receiving portion 11 in a corresponding posture according to the processing sequence of each surface of the target workpiece 4, so that the surface to be processed first faces the processing tool. For example, in this embodiment, the fixture 2 is assembled as a whole in a lying posture, and the processing tool is set on the top, so when installing the fixture 2, it is necessary to make the surface of the target workpiece 4 to be processed first face upward. After the current surface processing is completed, the fixture 2 is relatively pulled out from the receiving portion 11, and after flipping a certain angle, the surface to be processed next faces the tool, and then the fixture 2 is reinserted into the receiving portion 11.

[0075] Furthermore, the accommodation portion 11 is a hole whose inner diameter gradually and monotonically changes along its axial direction. The first end of the clamping member 2 is configured to be conical and can be fitted into the accommodation portion 11 through the large opening end of the conical hole.

[0076] Specifically, as shown in the attached figure Figure 3 and Figure 4 As shown, the accommodating portion 11 and the first end of the clamping member 2 are both tapered structures as a whole, and the tapered structure can achieve axial positioning, that is, the first end of the clamping member 2 can only enter the accommodating portion 11 from the large hole end of the accommodating portion 11, and after the clamping member 2 is inserted into the accommodating portion 11, it will abut against the hole wall of the accommodating portion 11 in the axial direction to achieve positioning, indicating that it is inserted into place.

[0077] Furthermore, the accommodating portion 11 and the first end of the clamping member 2 are both constructed as a regular pyramid structure, and the angle between the side surface of the regular pyramid structure and its axis is in the range of 10° to 30°.

[0078] Specifically, for a cone, when the bottom diameter is constant, the angle between the side and the axis directly affects the axial length of the cone, and the larger the angle between the side and the axis, the shorter the axial length of the cone. The axial length of the cone determines the length and area of ​​the matching portion between the accommodating portion 11 and the first end of the clamp 2. Since the second end of the clamp 2 is clamped with the target workpiece 4, the first end of the clamp 2 needs to balance the effect of the gravity of the target workpiece 4 on the clamp 2 by matching with the accommodating portion 11. Therefore, in this embodiment, the range of values ​​for the angle between the side and the axis is limited to avoid the axial length of the cone being too short due to an excessively large angle, thereby effectively improving the reliability of the matching between the accommodating portion 11 and the first end of the clamp 2.

[0079] Furthermore, the second end of the clamping member 2 is constructed with a clamping step 21, and a pressure plate 5 is detachably provided on the surface of the clamping member 2. The ends of the pressure plates 5 correspond to the clamping step 21 and are spaced apart from each other. The ends of the pressure plates 5 and the clamping step 21 can cooperate with each other to clamp the target workpiece 4.

[0080] Specifically, as shown in the attached figure Figures 1 to 3 As shown, the second end of the clamp 2 is clamped to the target workpiece 4 through the constructed clamping step 21 and the provided pressing plate 5. The pressing plate 5 is provided on a side surface of the clamp 2 (hereinafter referred to as the first surface for the convenience of writing), and the end of the pressing plate 5 extends to correspond to the second end of the clamp 2. The clamping step 21 is structurally equivalent to removing the portion of the second end of the clamp 2 close to its first surface, and the plane where the step surface of the clamping step 21 is located is parallel to the plane where the first surface of the clamp 2 is located and is spaced a certain distance apart. Therefore, the step surface of the clamping step 21 actually corresponds to the end of the pressing plate 5 and is spaced a certain distance apart, so that the space in the interval can be used to clamp the target workpiece 4.

[0081] Furthermore, a strip hole 51 is provided on the pressure plate 5 and a first bolt 52 is arranged through it. The extension direction of the strip hole 51 is along the direction of the line between its position and the end of the pressure plate 5. The bottom of the first bolt 52 abuts against the surface of the clamp 2. The surface of the clamp 2 is provided with a second bolt 22 that cooperates with the strip hole 51.

[0082] Specifically, the pressing plate 5 and the clamping member 2 are matched with each other through a bolt structure, and the relative position is adjusted based on the bolt structure to adapt to target workpieces 4 of different specifications and sizes. Figure 1 and Figure 3 As shown, the pressure plate 5 is firstly provided with a first bolt 52 and a strip hole 51; the bottom of the first bolt 52 abuts against the surface of the clamp 2, so that a gap of a certain width can be defined between the pressure plate 5 and the clamp 2, and the width of the gap can be adjusted by rotating the first bolt 52 according to the thickness of the clamped part of the target workpiece 4; and the strip hole 51 is used to cooperate with the second bolt 22 provided on the clamp 2, and the second bolt 22 is mainly used to limit the cooperation between the pressure plate 5 and the clamp 2 to prevent the pressure plate 5 from being separated from the clamp 2. In addition, the cooperation between the strip hole 51 and the second bolt 22 can also realize the movement of the pressure plate 5, thereby realizing the adjustment of the protruding length of the end of the pressure plate 5 relative to the second end of the clamp 2, so as to meet the clamping needs of different target workpieces 4.

[0083] Optionally, the second bolt 22 is located between the first bolt 52 and the end of the pressing plate 5, and the second bolt 22, the first bolt 52 and the end of the pressing plate 5 are located on the same straight line.

[0084] Specifically, the relative positions of the second bolt 22, the first bolt 52 and the end of the pressing plate 5 are mainly arranged to achieve the stability of the cooperation between the pressing plate 5 and the clamping member 2. Figure 3As shown, the first bolt 52 and the clamped object workpiece 4 limit the freedom of movement of the pressure plate 5 in the direction close to the clamp 2 at both ends, while the second bolt 22 limits the freedom of movement of the pressure plate 5 in the direction away from the clamp 2 in the middle, so that the entire matching structure is more balanced.

[0085] Furthermore, it also includes a driving assembly 3, which is arranged on a side of the positioning seat 1 away from the clamping member 2, and includes a transmission rod 31, which partially extends into the accommodating portion 11 and is connected to the first end of the clamping member 2.

[0086] The transmission rod 31 can telescopically move to push the first end of the clamping member 2 out or pull it into the accommodating portion 11, and the transmission rod 31 and the first end can rotate relative to each other or the transmission rod 31 and the main body of the driving assembly 3 can rotate relative to each other; or

[0087] The transmission rod 31 can telescope and rotate to push the first end of the clamping member 2 out of or pull it into the accommodating portion 11 , and can drive the clamping member 2 to flip when the first end is pushed out of the accommodating portion 11 .

[0088] Specifically, the workpiece turning tool also includes a driving component 3 for providing power, as shown in the accompanying drawings Figure 3 As shown, the main body of the driving assembly 3 is fixed on the side plate of the horizontal L-shaped base 7, and the positioning seat 1 is fixed on the bottom plate of the L-shaped base 7. The transmission rod 31 of the driving assembly 3 is connected to the first end of the clamping member 2. The specific connection method is that the center of the first end of the clamping member 2 is provided with an assembly screw hole 23, and the end of the transmission rod 31 is threadedly matched with the assembly screw hole 23; optionally, as shown in the accompanying drawings Figure 3 As shown, the end of the transmission rod 31 is also equipped with a second nut 311, which is used to lock the transmission rod 31 to prevent the transmission rod 31 from being loosened from the first end of the clamp 2. In this way, the clamp 2 is supported by the transmission rod 31 as a whole. Based on the telescopic movement function of the transmission rod 31 itself, if the clamp 2 is adjusted manually during the specific operation, it is not necessary for the person to hold and insert or pull out the clamp 2 relative to the accommodating portion 11, but only for the person to adjust the posture of the clamp 2.

[0089] In this embodiment, the workpiece flipping tool can be semi-automatically controlled, that is, the transmission rod 31 performs telescopic movement, so that the clamp 2 can be automatically inserted or pulled out relative to the accommodating portion 11 (according to the arrangement orientation shown in the accompanying drawings, the clamp 2 is actually pulled in or pushed out), and the personnel only need to manually flip the clamp 2 after the clamp 2 is separated from the accommodating portion 11 to realize semi-automatic operation.

[0090] In this embodiment, the workpiece flipping tool can also be fully automatically controlled, that is, the transmission rod 31 performs telescopic movement and rotation, so that the clamping part 2 can be automatically inserted or pulled out relative to the accommodating part 11 (according to the arrangement orientation shown in the accompanying drawings, the clamping part 2 is actually pulled in or pushed out). After the clamping part 2 is separated from the accommodating part 11, the transmission can also automatically flip the clamping part 2 by rotating, thereby realizing fully automatic operation.

[0091] Furthermore, the transmission rod 31 is connected to the output shaft 32 of the driving assembly 3 via a connecting mechanism 6 , and the connecting mechanism 6 includes a first connecting head 61 and a second connecting head 62 .

[0092] The first connecting head 61 is sleeved on the end of the output shaft 32 and abuts against the positioning shoulder of the output shaft 32. The end of the output shaft 32 is equipped with a nut for locking the first connecting head 61. The second connecting head 62 is sleeved on the end of the transmission rod 31, and the second connecting head 62 and the first connecting head 61 are nested with each other and connected by threads so that the end of the transmission rod 31 abuts against the end of the output shaft 32.

[0093] The transmission rod 31 and the second connector 62 are relatively fixed by interference fit, or relatively rotated by clearance fit.

[0094] Specifically, as shown in the attached figure Figure 3 As shown, the connecting mechanism 6 includes a first connecting head 61 and a second connecting head 62 which can be threadedly connected to each other. The first connecting head 61 and the second connecting head 62 are both sleeve-shaped structures as a whole. Figure 6 and Figure 7 As shown. The first connector 61 is sleeved on the end of the output shaft 32 of the drive assembly 3, one side of which abuts against the positioning shoulder of the output shaft 32, and the other side is locked by the first nut 63, at which time the first connector 61 is fixed to the output shaft 32 as a whole. The second connector 62 is sleeved on the end of the transmission rod 31, and the end of the transmission rod 31 is provided with a head with an enlarged outer diameter (in actual application, the transmission rod 31 can directly adopt a screw with a head), so there is a one-way limit in the axial direction between the second connector 62 itself and the end of the transmission rod 31. After the first connector 61 and the second connector 62 are nested and threadedly connected to each other, the end of the transmission rod 31 abuts against the end of the output shaft 32 (a gasket 64 can be further provided between the two), at which time the second connector 62, the first connector 61 and the transmission rod 31, and the output shaft 32 are connected as a whole, and are completely relatively fixed in the axial and radial directions. The telescopic movement of the output shaft 32 can be transmitted to the transmission rod 31 through the connecting mechanism 6, thereby driving the clamping member 2. In addition, based on the aforementioned semi-automatic and fully automatic control, the specific structure of the connecting mechanism 6 is also different accordingly.

[0095] In semi-automatic control, the entire drive assembly 3 only needs to realize telescopic movement, so the main body of the drive assembly 3 can directly adopt a cylinder, and the output shaft 32 is the piston rod of the cylinder. Since the clamp 2 and the transmission rod 31 are manually turned over as a whole, the transmission rod 31 and the output shaft 32 need to rotate relative to each other, so the clearance between the transmission rod 31 and the second connector 62 is used to realize the separation of the movement of the two in the circumferential direction and realize relative rotation.

[0096] In the fully automatic control, the driving assembly 3 as a whole needs to realize telescopic movement and rotational movement. For convenience, the main body of the driving assembly 3 can also directly adopt a cylinder, and the output shaft 32 is the piston rod of the cylinder. At this time, due to the characteristics of the cylinder structure, it is difficult for the output shaft 32 to have a rotation function. Therefore, it is considered that the rotation function is set separately on the transmission rod 31, so the transmission rod 31 and the output shaft 32 first need to rotate relative to each other, and the clearance between the transmission rod 31 and the second connector 62 is used to realize the circumferential movement separation of the two, so as to realize relative rotation. Then, the structure of the transmission rod 31 part is further designed, the rod part of the transmission rod 31 is processed into a gear structure, and the gear teeth are extended along the axial direction of the transmission rod 31, and a gear rotation drive unit meshing with the gear teeth of the transmission rod 31 is set at the position corresponding to the transmission rod 31. The gear rotation drive unit does not affect the telescopic movement of the transmission rod 31 with the cylinder, and can also drive the transmission rod 31 and the clamp 2 to flip as a whole.

[0097] Further, taking the wire cutting operation of a small insert as an example, the working principle of the semi-automatic control of the workpiece turning tool of the utility model is as follows:

[0098] (1) First, install the fixture on the workbench of the wire cutting machine and fix it with bolts. Use the cylinder of the drive assembly to pull the first end of the fixture into the accommodating part and tighten it. According to the actual processing needs, place the small insert with the first processing surface facing up on the second end of the fixture. After the horizontality and verticality are corrected, clamp it with a pressure plate to ensure that the small insert is stable and does not shake during the processing. After completing the first clamping, you can start the first processing.

[0099] (2) After the first processing is completed, the cylinder is used to push the first end of the clamp a certain distance so that it can be separated from the receiving portion. The cylinder drive device has the characteristics of fast response and high precision, which can ensure that the clamp can complete the pushing action in a short time.

[0100] (3) After the first end of the clamp is separated from the receiving part, the operator rotates the small insert and the clamp as a whole by 90° so that the second processing surface of the small insert faces upward. Then, the cylinder pulls the clamp back so that the first end of the clamp is re-embedded in the receiving part and fits tightly, completing the second clamping and starting the second processing.

[0101] (4) Repeat the above steps to achieve four 90° flip adjustments of the small insert, and complete the processing of its four surfaces respectively. Depending on the different clamping postures, the four surfaces have different conditions. Figure 1 As shown, the small insert in this embodiment is a cylindrical structure and is clamped in a manner that its axis is perpendicular to the rotation axis of the clamp. Therefore, the four surfaces processed are the top surface, two side surfaces and the bottom surface, which complete dependent punching or wire cutting processing respectively.

[0102] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0103] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A workpiece turning tool, characterized in that: include: A positioning seat, wherein a receiving portion is provided on the positioning seat; as well as A clamping member, wherein a first end of the clamping member can be detachably inserted into the receiving portion and cooperate with the receiving portion, and the first end can completely fill the receiving portion after being inserted into the receiving portion, and a second end of the clamping member is used for clamping a target workpiece; Wherein, the cross section of the accommodation portion and the cross section of the first end are both non-circular rotationally symmetrical figures, and the plane where the cross section is located is perpendicular to the axis of the accommodation portion.

2. The workpiece turning tool according to claim 1, characterized in that: The accommodating portion is a hole whose inner diameter gradually and monotonically changes along its axial direction. The first end of the clamping member is configured to be conical and can be fitted into the accommodating portion through the end with a large opening of the conical hole.

3. The workpiece turning tool according to claim 2, characterized in that: The accommodating portion and the first end of the clamping member are both constructed as a regular pyramid structure, and the angle between the side surface of the regular pyramid structure and its axis is in the range of 10° to 30°.

4. The workpiece turning tool according to claim 1, characterized in that: The cross-sectional shapes of the accommodation portion and the first end perpendicular to the axial direction of the accommodation portion are both square.

5. The workpiece turning tool according to claim 1, characterized in that: The second end of the clamp is configured with a clamping step, and a pressure plate is detachably provided on the surface of the clamp, the ends of the pressure plates correspond to the clamping step and are spaced apart from each other, and the ends of the pressure plates and the clamping step can cooperate with each other to clamp the target workpiece.

6. The workpiece turning tool according to claim 5, characterized in that: The pressure plate is provided with a strip hole and a first bolt passing through the strip hole, the extension direction of the strip hole is along the line direction between the position of the strip hole and the end of the pressure plate, the bottom of the first bolt abuts against the surface of the clamp, and the surface of the clamp is provided with a second bolt that cooperates with the strip hole.

7. The workpiece turning tool according to claim 6, characterized in that: The second bolt is located between the first bolt and an end of the pressing plate, and the second bolt, the first bolt and an end of the pressing plate are located on the same straight line.

8. The workpiece turning tool according to any one of claims 1 to 7, characterized in that: Also includes: A driving assembly, which is arranged on a side of the positioning seat away from the clamping member, and the driving assembly includes a transmission rod, the transmission rod partially extends into the accommodating portion and is connected to the first end of the clamping member; The transmission rod can be telescopically moved to push out or pull the first end of the clamping member into the accommodating portion, and the transmission rod and the first end can rotate relative to each other or the transmission rod and the main body of the driving assembly can rotate relative to each other; or The transmission rod can be telescopic and rotatable to push the first end of the clamping member out of or pull it into the accommodating portion, and can drive the clamping member to flip when the first end is pushed out of the accommodating portion.

9. The workpiece turning tool according to claim 8, characterized in that: The transmission rod is connected to the output shaft of the driving assembly through a connecting mechanism, and the connecting mechanism includes a first connecting head and a second connecting head; The first connector is sleeved on the end of the output shaft and abuts against the positioning shoulder of the output shaft, the end of the output shaft is matched with a nut for locking the first connector, the second connector is sleeved on the end of the transmission rod, and the second connector and the first connector are nested with each other and connected by threads, so that the end of the transmission rod abuts against the end of the output shaft; Wherein, the transmission rod and the second connecting head are clearance-fitted so as to be able to rotate relative to each other.

10. The workpiece turning tool according to claim 8, characterized in that: The first end of the clamping piece is provided with an assembly screw hole, and the transmission rod is threadedly matched with the assembly screw hole.

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