Clamping tool and processing machine tool equipment

Abstract

The utility model relates to the field of clamping tools, and discloses a clamping tool and machining tool equipment. The first positioning seat and the second positioning seat are arranged at intervals in the length direction, two first supporting pieces arranged at intervals in the width direction are arranged on the first positioning seat, the ends, relatively close to the second positioning seat, of the first supporting pieces extend out in a suspended mode, and two second supporting pieces arranged at intervals in the width direction are arranged on the second positioning seat. The ends, relatively close to the first positioning base, of the second supporting pieces extend out in a suspended mode, the distance between the first supporting pieces and the second supporting pieces can be adjusted, the suspended extending part of one of the two first supporting pieces and the two second supporting pieces is provided with a floating supporting structure, and the suspended extending parts of the other first supporting pieces and the two second supporting pieces are fixed supporting structures. The clamping tool and the processing machine tool equipment are suitable for positioning and clamping the longitudinal beams of different types of excavators, and are good in compatibility.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of clamping tools, and particularly relates to a clamping tool and a machining machine tool device. BACKGROUND

[0002] For large structural parts such as the longitudinal beam of an excavator, the clamping is affected by the large weight and complex shape of the workpiece, and different series of products cannot be compatible, and the versatility is low. SUMMARY

[0003] The purpose of the present application is to provide a clamping tool and a machining machine tool device with good compatibility.

[0004] In order to achieve the above-mentioned purpose, the present application provides a clamping tool, which comprises:

[0005] a base;

[0006] a first positioning seat and a second positioning seat are arranged on the base in a length direction, two first supporting members are arranged on the first positioning seat in a width direction, the end of the first supporting member close to the second positioning seat is suspended and extended, two second supporting members are arranged on the second positioning seat in the width direction, the end of the second supporting member close to the first positioning seat is suspended and extended, the spacing between the first supporting member and the second supporting member is adjustable, the suspended and extended part of one of the two first supporting members and the two second supporting members is provided with a floating supporting structure, and the suspended and extended parts of the remaining three are fixed supporting structures.

[0007] In some specific embodiments, the floating supporting structure can include an elastic supporting member.

[0008] In some specific embodiments, the first positioning seat and the second positioning seat are respectively provided with a positioning structure capable of positioning the workpiece in the length direction, the base is provided with a guide rail extending in the length direction, and the second positioning seat is movably arranged on the guide rail and capable of adjusting the position along the guide rail.

[0009] In some specific embodiments, the positioning structure of the second positioning seat includes a first driving mechanism and a pushing cross bar extending in the width direction, the first driving mechanism is arranged on the second positioning seat, the pushing cross bar is located between the first positioning seat and the second positioning seat, the first driving mechanism is drivingly connected with the pushing cross bar and capable of driving the pushing cross bar to adjust the position in the length direction to position the workpiece in the length direction.

[0010] And / or, the positioning structure of the first positioning seat includes a positioning cross plate extending in the transverse direction, and the inner side surface of the positioning cross plate is provided with an abutting buffer.

[0011] In some embodiments, the second support is a second driving mechanism, and the overhanging portion of the second support is a telescopic end of the second driving mechanism, which can be adjusted in length direction to extend or retract.

[0012] In some embodiments, at least one of the first supports is movably arranged on the first positioning seat and can be adjusted in width direction, and at least one of the second supports is movably arranged on the second positioning seat and can be adjusted in width direction.

[0013] In some embodiments, the clamping tool further comprises a plurality of bottom supports movably arranged on the base in length direction and can be adjusted in height direction to adapt to the bottom of the workpiece.

[0014] In some embodiments, the clamping tool further comprises a third positioning seat group and a fourth positioning seat group arranged between the first positioning seat and the second positioning seat, the third positioning seat group and the fourth positioning seat group are arranged in width direction, the third positioning seat group comprises a plurality of third positioning seats arranged in length direction, and the fourth positioning seat group comprises a plurality of fourth positioning seats arranged in length direction, and the fourth positioning seats are movably arranged on the base and can be adjusted in width direction.

[0015] In some embodiments, the third positioning seats and the fourth positioning seats are provided with a plurality of width positioning mechanisms arranged in height direction, which can abut on the workpiece in width direction.

[0016] In some embodiments, the first positioning seat, the second positioning seat, the third positioning seat group and the fourth positioning seat group define a receiving space for accommodating the workpiece, and the clamping tool further comprises a plurality of pre-positioning plates arranged on the top of the third positioning seats and the fourth positioning seats respectively to guide the workpiece into the receiving space.

[0017] In some embodiments, the number of the first positioning seats, the second positioning seats and the fourth positioning seat groups is two respectively, the two first positioning seats, the two second positioning seats and the two fourth positioning seat groups are arranged in width direction respectively, the third positioning seat group is located between the two fourth positioning seat groups, and the two first positioning seats, the two second positioning seats, the third positioning seat group and the two fourth positioning seat groups define two receiving spaces for accommodating the workpiece.

[0018] The second aspect of the present application provides a machining tool device, which comprises the clamping tool.

[0019] By the above technical solution, since the longitudinal beam of the excavator is a long box type large structural member, the structure of the top wall is quite different, and the bottom wall is a large flat surface structure, the end of the first support member and the second support member of the clamping tool of the present application is suspended and extended, which can be flexibly supported into the bottom wall of the cylinder, realizing the compatibility of the longitudinal beams of various models of excavators. Moreover, the spacing between the first support member and the second support member is adjustable, which is also suitable for longitudinal beam workpieces of different lengths. In addition, the large flat surface structure of the large structural member usually has deformation, among the four support members of the present application, three are fixed support structures, and one is a floating support structure, which is suitable for adaptive positioning and supporting of the deformed bottom wall, and has good positioning and supporting effect and good compatibility.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings are included to provide a further understanding of the embodiments of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor. In the drawings:

[0022] Figure 1 A structural schematic diagram of a longitudinal beam of an excavator is shown;

[0023] Figure 2 A structural schematic diagram of the clamping tool of one embodiment of the present application is shown.

[0024] Explanation of reference signs

[0025] 1 floating support structure 2 first positioning seat

[0026] 3 first support member 4 positioning cross plate

[0027] 5 pre-positioning plate 6 bottom support member

[0028] 7 middle width floating positioning mechanism 8 top width fixed positioning block

[0029] 9 fourth positioning seat 10 third positioning seat

[0030] 12 fixed support structure 13 pushing cross rod

[0031] 14 base 15 second support member

[0032] 16 Second positioning seat 17 Mounting seat

[0033] 18 abutting buffer 19 first driving mechanism

[0034] 11 Stringer DETAILED DESCRIPTION

[0035] The following describes the specific embodiments of the present application in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present application and are not intended to limit the present application.

[0036] like Figure 1 As shown, the longitudinal beam 11 of the excavator is a long box structure, and its outer shape mainly has two V-shaped structures. The appearance and size of different models are quite different. If the workpiece is positioned by the outer shape, the compatibility of the fixture is difficult to ensure.

[0037] In view of this, if Figure 2 As shown, the first aspect of the present application provides a clamping tool, which includes a base 14, a first positioning seat 2 and a second positioning seat 16, and the first positioning seat 2 and the second positioning seat 16 are arranged on the base 14 at intervals along the length direction. The first positioning seat 2 is provided with two first support members 3 arranged at intervals along the width direction, and the end of the first support member 3 relatively close to the second positioning seat 16 is suspended. The second positioning seat 16 is provided with two second support members 15 arranged at intervals along the width direction, and the end of the second support member 15 relatively close to the first positioning seat 2 is suspended. Since the bottom walls of the longitudinal beams of different models are all large flat structures, the similarities of each product can be used as positioning and clamping points, that is, the four suspended protruding parts can flexibly support the bottom wall of the box cavity of the box type, and can be compatible with supporting the longitudinal beams of various models of excavators. It has good compatibility and is suitable for the co-production of multiple models of products. In addition, the spacing between the first support member 3 and the second support member 15 is adjustable to adapt to longitudinal beams of different lengths. Moreover, the suspended protrusion of one of the two first support members 3 and the two second support members 15 is provided with a floating support structure 1, and the suspended protrusions of the other three are fixed support structures 12. In this way, when the large plane structure of the large structural member usually has deformation, the floating support structure 1 can adaptively position and support the deformed bottom wall to prevent over-positioning of the workpiece, with good positioning and support effect, more reasonable structure and better compatibility.

[0038] It should be noted that the structure of the base 14, the first positioning seat 2 and the second positioning seat 16 can be various, and can be designed according to actual production needs. The structure mode of adjusting the distance between the first support 3 and the second support 15 can also be various, for example, the first positioning seat 2 and the second positioning seat 16 are movably arranged on the base 14 and can be adjusted in position along the length direction, or the first support 3 and the second support 15 are movably arranged on the first positioning seat 2 and the second positioning seat 16 respectively and can be adjusted in position along the length direction, etc. Moreover, the first positioning seat 2, the second positioning seat 16, the first support 3 and the second support 15 can be adjusted in position by manual adjustment or driving mechanism, and the driving mechanism can be telescopic oil cylinder, motor, etc., and these structure forms should also belong to the protection scope of the present application. In addition, the floating support structure 1 can be arranged on one of the first support 3 or the second support 15, and can be designed according to actual application needs.

[0039] Optionally, the structure of the floating support structure 1 can be various, and the structure of adjusting the support position in the up-down direction should also belong to the protection scope of the present application. The floating support structure 1 comprises an elastic support, or the floating support structure 1 can also comprise a telescopic driving member, etc.

[0040] Optionally, in order to realize the positioning of the workpiece along the length direction, the first positioning seat 2 and the second positioning seat 16 are respectively provided with a positioning structure capable of positioning the workpiece along the length direction. The base 14 is provided with a guide rail extending along the length direction, and the first positioning seat 2 and / or the second positioning seat 16 are movably arranged on the guide rail and can be adjusted in position along the guide rail, so that the distance between the first positioning seat 2 and the second positioning seat 16 can be adjusted to position the workpiece in the length direction.

[0041] The existing mechanical clamp workpiece clamping is mainly manual operation, and the operation efficiency is low, and it does not have compatibility.

[0042] Therefore, further, the first positioning seat 2 and the second positioning seat 16 can be adjusted in position by manual adjustment, or can also be automatically adjusted in position by a driving mechanism, etc.

[0043] Further, the positioning structure of the second positioning seat 16 can comprise a first driving mechanism 19 and a pushing cross rod 13 extending along the width direction, the pushing cross rod 13 is located between the first positioning seat 2 and the second positioning seat 16, the first driving mechanism 19 is arranged on the second positioning seat 16, the first driving mechanism 19 is drivingly connected with the pushing cross rod 13 and can drive the pushing cross rod 13 to adjust the position along the length direction to position the workpiece in the length direction. Specifically, the pushing cross rod 13 can abut on the end of the workpiece along the length direction under the driving of the first driving mechanism 19, and push the workpiece to be positioned towards the first positioning seat 2.

[0044] Optionally, the positioning structure of the first positioning seat 2 can comprise a transversely extending positioning transverse plate 4, and the inner side of the positioning transverse plate 4 is provided with an abutting buffer 18. In this way, the workpiece can be positioned in the length direction by pushing against the cross bar 13 and the positioning transverse plate 4. Moreover, the abutting buffer 18 can buffer the workpiece, and the reliability is better. Here, the inner side is the side of the positioning transverse plate 4 that is relatively close to the second positioning seat 16.

[0045] Optionally, as shown in Figure 2 The second support 15 can be a second driving mechanism, and the overhanging extension of the second support 15 is a telescopic active end of the second driving mechanism, which can adjust the extension and retraction position in the length direction. In this way, the distance between the overhanging extension of the first support 3 and the overhanging extension of the second support 15 can be adjusted. Of course, the first support 3 can also be provided as a structure that can adjust the position in the length direction. The structures that can adjust the position in the length direction of the first support 3 and the second support 15 can be various, such as through a slide rail and a slide block or a mechanism mounted on different positioning holes, and the driving mechanism can be a hydraulic cylinder or a motor, etc. These structure forms should also be within the protection scope of the present application.

[0046] Optionally, at least one of the two first supports 3 is movably arranged on the first positioning seat 2 and can adjust the position in the width direction, and at least one of the two second supports 15 is movably arranged on the second positioning seat 16 and can adjust the position in the width direction. In this way, the positioning and supporting position of the workpiece in the width direction can be adjusted, and the compatibility is good. Specifically, as shown in Figure 2 The top transverse plate of the first positioning seat 2 and the second positioning seat 16 is respectively provided with a sliding groove, and the first support 3 and the second support 15 are respectively movably arranged in the sliding groove and can adjust the position in the width direction along the sliding groove.

[0047] Further, the clamping tool can further comprise a plurality of bottom supports 6, which are arranged on the base 14 in the length direction and can adjust the height position in the up-down direction to adapt to the positioning and supporting of the bottom of the workpiece. As shown in Figure 1 The top wall structure of different models of longitudinal beams is different, and the bottom support 6 can movably position and support the top wall of different structures, which can further improve the compatibility of the clamping tool. The bottom support 6 can be provided as an automatic driving adjustment mode such as electric driving or hydraulic driving, so that the machining efficiency is higher.

[0048] Optionally, the clamping tool further comprises a third positioning seat group and a fourth positioning seat group arranged between the first positioning seat 2 and the second positioning seat 16, the third positioning seat group and the fourth positioning seat group are arranged in pairs along the width direction, the third positioning seat group comprises a plurality of third positioning seats 10 arranged along the length direction, and the fourth positioning seat group comprises a plurality of fourth positioning seats 9 arranged along the length direction. The third positioning seat 10 and / or the fourth positioning seat 9 are movably arranged on the base 14 and can be adjusted in position along the width direction. In this way, the workpiece can be positioned along the width direction by the third positioning seat 10 and the fourth positioning seat 9. Specifically, as shown in Figure 2 the base 14 is provided with a mounting seat 17, and the third positioning seat 10 and the fourth positioning seat 9 are arranged on the base 14 through the mounting seat 17. The mounting seat 17 is provided with a guide rail extending along the width direction and a sliding block arranged on the guide rail, and the fourth positioning seat 9 is arranged on the sliding block and adjusted in position along the width direction through the sliding block.

[0049] Optionally, the bottom support 6 can also be mounted on the base 14 through the mounting seat 17, so that the structure is more reasonable, the positioning of the workpiece is more flexible, and the reliability is better.

[0050] Optionally, the third positioning seat 10 and the fourth positioning seat 9 are provided with a plurality of width positioning mechanisms arranged along the height direction, and the width positioning mechanisms can abut on the workpiece along the width direction. Specifically, as shown in Figure 2 the width positioning mechanism can comprise a middle width floating positioning mechanism 7 and a top width fixed positioning block 8, and the top width fixed positioning block 8 is located above the middle width floating positioning mechanism 7. The top of each third positioning seat 10 and each fourth positioning seat 9 is fixedly provided with a top width fixed positioning block 8 to position the workpiece along the width direction. The middle width floating positioning mechanism 7 can be a telescopic oil cylinder or an electric telescopic mechanism, the fixed end of the middle width floating positioning mechanism 7 is arranged on the third positioning seat 10 or the fourth positioning seat 9, and the telescopic end of the middle width floating positioning mechanism 7 can abut on the side wall of the workpiece to automatically clamp and position the workpiece.

[0051] Optionally, as shown in Figure 2 the first positioning seat 2, the second positioning seat 16, the third positioning seat group and the fourth positioning seat group define a containing space for accommodating the workpiece, and the clamping tool further comprises a plurality of pre-positioning plates 5 arranged on the top of the third positioning seat 10 and the fourth positioning seat 9 to guide the workpiece into the containing space. When the workpiece is hoisted, the pre-positioning plate 5 can guide the workpiece to fall into position to prevent collision with the hydraulic element, and the overall structure is more reasonable and reliable.

[0052] Optionally, the first positioning seat 2, the second positioning seat 16 and the fourth positioning seat group are two in number respectively, the two first positioning seats 2, the two second positioning seats 16 and the two fourth positioning seat groups are arranged along the width direction respectively, the third positioning seat group is located in the middle of the two fourth positioning seat groups, and the two first positioning seats 2, the two second positioning seats 16, the third positioning seat group and the two fourth positioning seat groups define two accommodation spaces for accommodating workstations. In this way, the clamping tool has two workstations, the two workstations are symmetrical relative to the middle axis, and two longitudinal beams can be clamped at a time. One set of clamping tool can clamp two workpieces at the same time, and the two workstations can share the positioning mechanism and the hydraulic element on the third positioning seat 10, and the manufacturing cost is relatively reduced.

[0053] The second aspect of the present application also provides a machining tool equipment comprising the above-mentioned clamping tool. Since the machining tool equipment comprises the above-mentioned clamping tool, it also has all the technical effects brought by the clamping tool, and thus will not be repeated here.

[0054] It should be noted that the structure principle of the driving mechanism of the present application is well known to those skilled in the art and does not belong to the core improvement part of the present application, and thus will not be repeated here.

[0055] The clamping process of the clamping tool of the present application will be illustrated above.

[0056] First, the workpiece is lifted to above the accommodation space in the unclamped state of the clamping tool, the workpiece falls into the accommodation space along the pre-positioning plate 5, and the bottom of the workpiece is located above the top wall. The workpiece is moved to the left to the first positioning seat 2, and the positioning cross plate 4 positions the left end of the workpiece. The overhanging extension of the two first supporting members 3 extends into the left end cavity of the workpiece, the second positioning seat 16 is moved to the left, and the overhanging extension of the two second supporting members 15 extends into the right end cavity of the workpiece. The push rod 13 is moved to the left, further positioning the workpiece along the length direction, the workpiece is moved downward, and the inner side of the bottom of the workpiece is positioned and supported on the four overhanging extensions. The width floating positioning mechanism of the fourth positioning seat 9 extends and pushes the workpiece to the third positioning seat 10, thereby positioning the workpiece along the width direction. The bottom supporting member 6 rises upward and abuts against the top wall of the workpiece, thereby positioning the workpiece along the height direction with the four overhanging extensions. Finally, all the driving mechanisms such as hydraulic cylinders are clamped, and the clamping of the workpiece is completed.

[0057] In summary, the clamping tool can position and adjust the workpiece in the length, width and height directions, ensuring the compatibility of the clamp. In addition, the clamping tool is provided with a common oil cylinder support seat, and two workpieces can be clamped at the same time. In addition, the positioning clamp of the clamping tool in the width and height directions adopts a hydraulic push cylinder and floating support, which can prevent over-positioning of the workpiece and improve compatibility, and product switching only needs to adjust part of the positioning and clamping mechanism, without the need to replace the clamp as a whole. The overall structure of the clamping tool is relatively simplified, and the manufacturing cost is low. The overall clamping tool is controlled by hydraulic pressure, which is fast and efficient. A set of clamp can clamp two workpieces at the same time, and the positioning mechanism and hydraulic elements can be shared to reduce the cost.

[0058] In the description of the present application, it should be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0059] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0061] Although the embodiments of the present application have been shown and described above, it is understood that the above-described embodiments are exemplary and are not to be construed as limiting the present application, and that changes, modifications, substitutions and variations can be made by those skilled in the art without departing from the scope of the present application.

Claims

1. A clamping tool, characterized in that: include: Base (14); A first positioning seat (2) and a second positioning seat (16) are arranged on the base (14) at intervals along the length direction. The first positioning seat (2) is provided with two first support members (3) arranged at intervals along the width direction. The first support member (3) is suspended relative to the end of the second positioning seat (16). The second positioning seat (16) is provided with two second support members (15) arranged at intervals along the width direction. The second support member (15) is suspended relative to the end of the first positioning seat (2). The spacing between the first support member (3) and the second support member (15) is adjustable. The suspended protruding portion of one of the two first support members (3) and the two second support members (15) is provided with a floating support structure (1), and the suspended protruding portions of the other three are fixed support structures (12).

2. The clamping tool according to claim 1, characterized in that: The floating support structure (1) comprises an elastic support member.

3. The clamping tool according to claim 1, characterized in that: The first positioning seat (2) and the second positioning seat (16) are respectively provided with positioning structures capable of positioning the workpiece along the length direction; the base (14) is provided with a guide rail extending along the length direction; the second positioning seat (16) is movably arranged on the guide rail and can adjust its position along the guide rail.

4. The clamping tool according to claim 3, characterized in that: The positioning structure of the second positioning seat (16) includes a first driving mechanism (19) and a pushing cross bar (13) extending in the width direction, wherein the first driving mechanism (19) is arranged on the second positioning seat (16), and the pushing cross bar (13) is located between the first positioning seat (2) and the second positioning seat (16), and the first driving mechanism (19) is connected to the pushing cross bar (13) by driving, and can drive the pushing cross bar (13) to adjust its position along the length direction, so as to position the workpiece in the length direction; And / or, the positioning structure of the first positioning seat (2) comprises a positioning transverse plate (4) extending in the transverse direction, and a supporting buffer (18) is provided on the inner side surface of the positioning transverse plate (4).

5. The clamping tool according to claim 1, characterized in that: The second support member (15) is a second driving mechanism, and the suspended protruding portion of the second support member (15) is a telescopic movable end of the second driving mechanism, and the telescopic movable end of the second driving mechanism can adjust the extension and retraction positions along the length direction; And / or, at least one of the two first support members (3) is movably arranged on the first positioning seat (2) and can be adjusted in position along the width direction, and at least one of the two second support members (15) is movably arranged on the second positioning seat (16) and can be adjusted in position along the width direction.

6. The clamping tool according to claim 1, characterized in that: The clamping tool further comprises a plurality of bottom support members (6), which are arranged on the base (14) at intervals along the length direction and can be adjusted in height along the up and down directions to provide adaptive positioning support for the bottom of the workpiece.

7. The clamping tool according to claim 1, characterized in that: The clamping tool also includes a third positioning seat group and a fourth positioning seat group arranged between the first positioning seat (2) and the second positioning seat (16), the third positioning seat group and the fourth positioning seat group are arranged in parallel along the width direction, the third positioning seat group includes a plurality of the third positioning seats (10) arranged at intervals along the length direction, the fourth positioning seat group includes a plurality of the fourth positioning seats (9) arranged at intervals along the length direction, and the fourth positioning seat (9) is movably arranged on the base (14) and can be adjusted in position along the width direction.

8. The clamping tool according to claim 7, characterized in that: The third positioning seat (10) and the fourth positioning seat (9) are provided with a plurality of width positioning mechanisms spaced apart in the height direction, and the width positioning mechanisms are capable of abutting against the workpiece in the width direction; And / or, a accommodating space for accommodating a workstation is defined between the first positioning seat (2), the second positioning seat (16), the third positioning seat group and the fourth positioning seat group, and the clamping fixture further includes a plurality of pre-positioning plates (5), and the plurality of pre-positioning plates (5) are respectively arranged on the top of the third positioning seat (10) and the fourth positioning seat (9) to guide the workpiece into the accommodating space.

9. The clamping tool according to claim 7, characterized in that: The number of the first positioning seat (2), the second positioning seat (16) and the fourth positioning seat group is two respectively, the two first positioning seats (2), the two second positioning seats (16) and the two fourth positioning seat groups are spaced apart along the width direction, the third positioning seat group is located in the middle of the two fourth positioning seat groups, and two accommodating spaces for accommodating workstations are defined between the two first positioning seats (2), the two second positioning seats (16), the third positioning seat group and the two fourth positioning seat groups.

10. A processing machine tool, characterized in that: The invention comprises a clamping tool according to any one of claims 1 to 9.

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