Plane clamping tool for special-shaped strip-shaped workpiece

Abstract

The plane clamping tool for the special-shaped strip-shaped workpiece comprises a base plate installed on a machining table, and a bidirectional translation assembly capable of driving two clamping mechanisms which are arranged in an aligned mode to move in the opposite direction or the opposite direction is installed on the base plate. The clamping mechanism comprises alignment translation plates, a first clamping assembly, a second clamping assembly and a third abutting assembly, and the two alignment translation plates are arranged above the base plate in an alignment mode and connected with two translation blocks of the bidirectional translation assembly respectively; the opposite side faces of the two alignment translation plates are provided with the first clamping assemblies capable of conducting deflection movement relative to the alignment translation plates, and the side faces, away from the alignment translation plates, of the first clamping assemblies are provided with the second clamping assemblies capable of conducting secondary deflection movement. The side face, away from the first clamping assembly, of the second clamping assembly is rotationally connected with the third abutting assembly abutting against the surface of the workpiece in a limiting mode.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping devices, in particular to a plane clamping tool for special-shaped strip workpieces. Background Art

[0002] In the process of parts manufacturing, it is usually necessary to use clamping fixtures to clamp and limit the processing position of the workpiece to ensure the accuracy and precision of the workpiece processing. The clamping fixture is a process device used to quickly tighten the workpiece during processing so that the machine tool, tool, and workpiece maintain the correct relative position. In other words, the fixture is an indispensable part of mechanical processing. In the process of cutting, heat treatment, assembly, welding and testing in the mechanical manufacturing process, flat-nose pliers are usually used to clamp the workpiece. However, flat-nose pliers clamp the workpiece through two parallel clamps. When clamping special-shaped workpieces with continuous irregular outer contours, since the workpiece has irregular surfaces such as curved surfaces or bent protrusions, the workpiece is very likely to loosen when clamped by the flat-nose pliers. In particular, during the processing of the workpiece, due to the existence of cutting force, the workpiece will shake, affecting the processing quality.

[0003] In the actual processing process, due to the particularity of the outer contour of the special-shaped workpiece, the existing conventional general-purpose clamps cannot effectively clamp it with a high degree of matching, and thus cannot meet the clamping and limiting requirements required for subsequent processing, resulting in great difficulty and high processing costs for the processing of special-shaped workpieces. Although some manufacturers will manufacture special clamps to clamp and limit special-shaped parts according to their actual shapes in order to meet production needs, such special clamps can generally only adapt to one type of special-shaped parts and have low versatility. When facing special-shaped parts of different specifications, they still have low adaptability and cannot effectively clamp special-shaped parts of different shapes, and the stability of the workpiece clamping state is also poor. Utility Model Content

[0004] The utility model aims to provide a planar clamping tool that can perform bilateral multi-station adaptive clamping and limiting on a variety of irregular-shaped strip workpieces, so as to solve the problem that the existing clamping tool cannot stably clamp a variety of workpieces with different specifications and irregular shapes, and needs to use special parts and special tools for clamping, which has a small scope of application of the clamp, increased production costs and prolonged production cycle.

[0005] The technical solution adopted by the utility model is: a planar clamping tool for special-shaped strip workpieces, including a base plate installed on a processing table, on which is installed the bidirectional translation component capable of driving two aligned clamping mechanisms to move toward or away from each other, the clamping mechanism comprising an alignment translation plate, a first clamping component, a second clamping component and a third abutment component, wherein the two alignment translation plates are aligned above the base plate and are connected to the two translation blocks of the bidirectional translation components respectively; the first clamping component capable of deflecting relative to the alignment translation plate is installed on the facing sides of the two alignment translation plates, the second clamping component capable of secondary deflecting is installed on the side of the first clamping component away from the alignment translation plate, and the second clamping component is rotatably connected to the side away from the first clamping component to the third abutment component that is limitedly abutted against the workpiece surface.

[0006] According to a preferred embodiment, the T-shaped support plate of the alignment translation plate is installed on the translation block, and the upper end surface of the T-shaped support plate is provided with a mounting cross plate parallel to the base plate, and the plate body of the T-shaped support plate is also symmetrically provided with through holes located on both sides of the bidirectional translation assembly, wherein a guide rod located above the plate body of the base plate is passed through the through hole.

[0007] According to a preferred embodiment, a first U-shaped through groove is opened on the side of the mounting cross plate, and the first arc rail groove connected with the first U-shaped through groove is opened on the bottom surface of the arc groove of the first U-shaped through groove defined by the plate body of the mounting cross plate.

[0008] According to a preferred embodiment, the first clamping assembly includes a first fan-shaped clamping plate, a first rail and a sealing strip, wherein the first rail is installed on the arc-shaped side surface of the plate body of the first fan-shaped clamping plate, and the sealing strips are arranged at both ends of the first rail; the first fan-shaped clamping plate is inserted into the first U-shaped through groove, and the first rail is synchronously connected to the first arc rail groove.

[0009] According to a preferred embodiment, a second U-shaped through groove is further provided on the side of the plate body of the first fan-shaped clamping plate away from the first U-shaped through groove, and a second arc track groove is further provided on the side of the plate body of the first fan-shaped clamping plate which defines the bottom surface of the second U-shaped through groove.

[0010] According to a preferred embodiment, the second fan-shaped clamping plate of the second clamping assembly is inserted into the second U-shaped through-groove, and the second rail arranged on the arc-shaped side surface of the second fan-shaped clamping plate is inserted in the second arc rail groove, and the edge of the plate body of the second fan-shaped clamping plate away from the second U-shaped through-groove is also provided with a third rotating groove for rotatably connecting the third abutment assembly.

[0011] According to a preferred embodiment, the third abutment assembly includes a rotating head, a rotating shaft, an arc-shaped abutment plate and a limit spring, wherein the rotating head is inserted into the third rotating groove by rotating the rotating shaft, an arc-shaped abutment plate capable of abutting against the surface of the workpiece is provided at one end of the rotating head away from the third rotating groove, and the limit spring for limiting the initial relative position of the arc-shaped abutment plate and the second fan-shaped clamping plate is provided between the arc-shaped abutment plate and the second fan-shaped clamping plate.

[0012] According to a preferred embodiment, both ends of the guide rod are mounted on the base plate via vertical plates arranged on the upper edge of the plate body of the base plate.

[0013] According to a preferred embodiment, the bidirectional translation assembly includes a guide groove embedded in the base plate, a double-threaded shaft rotatably inserted in the guide groove, and two translation blocks penetrated on the double-threaded shaft. One end of the double-threaded shaft passes through the groove wall of the guide groove and is transmission-connected to a rotating motor arranged on the base plate, so that the double-threaded shaft can rotate in the rotating motor, thereby driving the two translation blocks to move toward or away from each other.

[0014] According to a preferred embodiment, the arc surface of the arc-shaped abutment plate is further provided with anti-slip protrusions.

[0015] The beneficial effects of the utility model are:

[0016] The present application constructs a clamping mechanism with a three-stage linkage deflection and abutment clamping function by setting a first clamping component, a second clamping component and a third abutment component, so that the clamping mechanism can adaptively deflect the first clamping component, the second clamping component and the third abutment component in different areas, sections and points, so that multiple third abutment components can be effectively abutted against the edge of the workpiece, so that the two clamping mechanisms arranged in position can stably clamp the workpiece. The first clamping component, the second clamping component and the third abutment component set in the present application can undergo multi-angle position deflection transformation, so that several third abutment components can be synchronously abutted against the surface of different areas of the workpiece, improving the adaptability to workpieces of different specifications, so as to achieve effective clamping of various irregular-shaped strip workpieces, and achieving a high range of application with multiple uses, high versatility and high clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a preferred plane clamping tool for a special-shaped strip workpiece proposed by the utility model;

[0018] Figure 2 It is a partial plan view of a first clamping assembly of a preferred planar clamping tool for a special-shaped strip workpiece proposed by the utility model;

[0019] Figure 3 It is a partial plan view of a second clamping assembly and a third abutting assembly of a preferred planar clamping tool for a special-shaped strip workpiece proposed by the utility model;

[0020] Figure 4 It is a side view of a preferred plane clamping tool for special-shaped strip workpieces proposed by the utility model.

[0021] Reference numerals list

[0022] 1: base plate; 2: bidirectional translation assembly; 3: alignment translation plate; 4: first clamping assembly; 5: second clamping assembly; 6: third abutment assembly; 11: vertical plate; 12: guide rod; 21: guide groove; 22: double-threaded shaft; 23: translation block; 24: rotating motor; 31: T-shaped support plate; 32: mounting cross plate; 41: first fan-shaped clamping plate; 42: first rail; 43: sealing strip; 44: second U-shaped through-groove; 45: second arc rail groove; 51: second fan-shaped clamping plate; 52: second rail; 53: third rotating groove; 61: rotating head; 62: rotating shaft; 63: arc abutment plate; 64: limiting spring; 65: anti-slip protrusion; 311: through hole; 321: first U-shaped through-groove; 322: first arc rail groove. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be briefly introduced below in combination with the drawings and the descriptions of the embodiments or the prior art. Obviously, the following descriptions of the structures of the drawings are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] The technical solution provided by the present invention will be described in detail below by way of examples with reference to the accompanying drawings. It should be noted that the description of these examples is used to help understand the present invention, but does not constitute a limitation of the present invention. In some examples, some implementation methods are not described or are not described in detail because they belong to existing or conventional technologies.

[0025] In addition, the technical features recorded in this article, or the steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can also be combined in any suitable manner in one or more embodiments. For those skilled in the art, it is easy to understand that the steps or operation sequence of the methods related to the embodiments provided herein can also be changed. Any order in the drawings and embodiments is only for illustrative purposes and does not imply a requirement to follow a certain order unless it is explicitly stated that a certain order is required.

[0026] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, under reasonable circumstances (not constituting a self-contradiction), include direct and indirect connections (couplings).

[0027] The following is a detailed description with reference to the accompanying drawings.

[0028] Example 1

[0029] The present application provides a planar clamping tool for special-shaped strip workpieces, which includes a base plate 1, a bidirectional translation assembly 2, an alignment translation plate 3, a first clamping assembly 4, a second clamping assembly 5 and a third abutting assembly 6.

[0030] according to Figure 1-4In a specific embodiment shown, a substrate 1 is detachably mounted on a processing table of a lathe. A bidirectional translation assembly 2 is mounted on the substrate 1, which can drive two aligned clamping mechanisms to move toward or away from each other. The clamping mechanism includes an alignment translation plate 3, a first clamping assembly 4, a second clamping assembly 5 and a third abutment assembly 6. The two alignment translation plates 3 are aligned above the substrate 1 and are connected to two translation blocks 23 of the bidirectional translation assembly 2. The first clamping assembly 4 capable of deflection movement relative to the alignment translation plate 3 is mounted on the facing sides of the two alignment translation plates 3. The second clamping assembly 5 capable of secondary deflection movement is mounted on the side of the first clamping assembly 4 away from the alignment translation plate 3. The second clamping assembly 5 is rotatably connected to the side away from the first clamping assembly 4 with a third abutment assembly 6 that is limitedly abutted against the surface of the workpiece. The present application constructs a clamping mechanism with a three-stage linkage deflection and abutment clamping function by setting a first clamping component 4, a second clamping component 5 and a third abutment component 6, so that the clamping mechanism can adaptively deflect the first clamping component 4, the second clamping component 5 and the third abutment component 6 in different areas, sections and points, so that multiple third abutment components 6 can be effectively abutted against the edge of the workpiece, so that the two clamping mechanisms arranged in position can stably clamp the workpiece. The first clamping component 4, the second clamping component 5 and the third abutment component 6 set in the present application can undergo multi-angle position deflection transformation, so that several third abutment components 6 can be synchronously abutted against the surface of different areas of the workpiece, improving the adaptability to workpieces of different specifications, so as to achieve effective clamping of various irregular-shaped strip workpieces with irregular contours, and realizing a high range of application with multiple uses, high versatility and high clamping stability.

[0031] Preferably, a vertical plate 11 and a guide rod 12 for auxiliary support and auxiliary guidance of the alignment translation plate 3 are provided on the base plate 1. Specifically, both ends of the guide rod 12 are mounted on the base plate 1 through the vertical plate 11 provided on the upper edge of the plate body of the base plate 1, so that the guide rod 12 is suspended above the base plate 1 in parallel with the base plate 1. Further preferably, two guide rods 12 are provided in parallel above the base plate 1.

[0032] Preferably, the bidirectional translation assembly 2 comprises a guide groove 21, a double-threaded shaft 22, a translation block 23 and a rotary motor 24. Preferably, the guide groove 21 is embedded in the base plate 1. The double-threaded shaft 22 is rotatably inserted in the guide groove 21. Further preferably, the two translation blocks 23 are inserted through the double-threaded shaft 22. Specifically, the two translation blocks 23 are threadedly connected to the double-threaded shaft 22, and the two translation blocks 23 are respectively located on the two end shafts with opposite thread directions. Further preferably, one end of the double-threaded shaft 22 passes through the groove wall of the guide groove 21 and is transmission-connected to the rotary motor 24 disposed on the base plate 1. The double-threaded shaft 22 can rotate in the rotary motor 24, thereby driving the two translation blocks 23 to move toward or in the opposite direction.

[0033] Preferably, the alignment translation plate 3 includes a T-shaped support plate 31 and a mounting cross plate 32. Preferably, the T-shaped support plate 31 of the alignment translation plate 3 is mounted on the translation block 23. Preferably, the upper end surface of the T-shaped support plate 31 is provided with a mounting cross plate 32 parallel to the base plate 1. Preferably, through holes 311 located on both sides of the bidirectional translation assembly 2 are symmetrically opened on the plate body of the T-shaped support plate 31. Specifically, a guide rod 12 located above the plate body of the base plate 1 is penetrated in the through hole 311, so that the guide rod 12 cooperates with the bidirectional translation assembly 2 to limit the movement direction of the alignment translation plate 3 while ensuring its translation stability.

[0034] Preferably, a first U-shaped through groove 321 is provided on the side of the mounting cross plate 32. Further preferably, at least two first U-shaped through grooves 321 are symmetrically provided on the mounting cross plate 32, so that it can be used to install at least two first clamping components 4, so that it can have more clamping points, thereby improving the stability and effectiveness of clamping. Further preferably, a first arc track groove 322 connected to the first U-shaped through groove 321 is provided on the bottom surface of the arc groove of the first U-shaped through groove 321 defined by the plate body of the mounting cross plate 32. Preferably, the first clamping component 4 can be deflectably inserted in the first U-shaped through groove 321, and it can also undergo deflection movement under the guide limit of the first arc track groove 322.

[0035] Preferably, the first clamping assembly 4 includes a first fan-shaped clamping plate 41, a first rail 42 and a sealing strip 43. Preferably, the first rail 42 is installed on the arc side of the plate body of the first fan-shaped clamping plate 41. Further preferably, sealing strips 43 are provided at both ends of the first rail 42. Preferably, the first fan-shaped clamping plate 41 is inserted in the first U-shaped through groove 321. Further preferably, the first rail 42 is synchronously connected to the first arc track groove 322. Specifically, the first rail 42 can rotate in the first arc track groove 322 to change the deflection angle of the first fan-shaped clamping plate 41 relative to the mounting cross plate 32. Sealing strips 43 are provided at both ends of the first rail 42 to limit the maximum rotation angle of the first rail 42, so as to prevent the first rail 42 from excessively rotating and falling off from the first arc track groove 322. Further preferably, a second U-shaped through groove 44 is also provided on the side of the plate body of the first fan-shaped clamping plate 41 away from the first U-shaped through groove 321. Preferably, the first sector-shaped clamping plate 41 defines a second U-shaped through-groove 44, and a second arc track groove 45 is further provided on the side of the plate body. Preferably, at least two second U-shaped through-grooves 44 are symmetrically provided on the first sector-shaped clamping plate 41, so that the same sector-shaped clamping plate 41 can be used to connect at least two second clamping assemblies 5, so that the clamping points can be further expanded, so that more third abutting assemblies 6 can abut and clamp the workpiece.

[0036] Preferably, the second clamping assembly 5 includes a second fan-shaped clamping plate 51, a second rail 52 and a third rotation groove 53. Preferably, the second fan-shaped clamping plate 51 of the second clamping assembly 5 is inserted in the second U-shaped through groove 44. Preferably, the second rail 52 arranged on the arc-shaped side surface of the second fan-shaped clamping plate 51 is inserted in the second arc rail groove 45. Preferably, the edge of the plate body of the second fan-shaped clamping plate 51 away from the second U-shaped through groove 44 is also provided with a third rotation groove 53 for rotationally connecting the third abutting assembly 6. Preferably, at least two third rotation grooves 53 are provided on the second fan-shaped clamping plate 51, so that a single second fan-shaped clamping plate 51 can be connected to drive multiple third abutting assemblies 6, thereby further increasing the number of clamping points, so that the clamping stability is further improved.

[0037] Preferably, the third abutment assembly 6 comprises a rotating head 61, a rotating shaft 62, an arcuate abutment plate 63 and a limit spring 64. Further preferably, the rotating head 61 is rotatably inserted in the third rotating groove 53 through the rotating shaft 62. Preferably, an arcuate abutment plate 63 capable of abutting against the surface of the workpiece is provided at one end of the rotating head 61 away from the third rotating groove 53. Preferably, a limit spring 64 is provided between the arcuate abutment plate 63 and the second fan-shaped clamping plate 51 to limit the initial relative position of the two. Further preferably, the arcuate surface of the arcuate abutment plate 63 is also provided with an anti-slip protrusion 65.

[0038] In the process of the two alignment translation plates 3 moving toward each other and approaching each other, the first clamping assembly 4, the second clamping assembly 5 and the third abutting assembly 6 can deflect in the same or different directions according to the shape of the surface area of ​​the workpiece actually abutted by the third abutting assembly 6, thereby achieving the abutment balance of the multi-linked deflection structure constructed by the first clamping assembly 4, the second clamping assembly 5 and the third abutting assembly 6. Specifically, in the actual abutment process, the two third abutting assemblies 6 on the same second clamping assembly 5 form a double-point abutment with a displacement difference according to the position difference of the two points on the surface of the workpiece in contact, and the second clamping assembly 5 deflects in order to ensure the stability of the synchronous abutment of the two third abutting assemblies 6, thereby compensating for the displacement difference between the two third abutting assemblies 6. Furthermore, the second clamping assembly 5 on the same first clamping assembly 4 deflects to different degrees according to the difference in the workpiece surface contour corresponding to the abutment point of the third abutment assembly 6 to which the two are rotatably connected, so that in order to ensure that the second clamping assembly 5 effectively supports the two sections of the workpiece surface with a position difference, the first clamping assembly 4 also deflects in a matching manner, thereby ensuring that the two second clamping assemblies 5 can drive the third abutment assembly 6 to abut against the workpiece surfaces in two different sections. The two third abutment assemblies 6 corresponding to the same second clamping assembly 5 abut against two points on the workpiece surface in the same section. Further preferably, the third abutment assembly 6 can also deflect to a certain extent according to the surface inclination of the abutment point, thereby further improving the stability of the abutment.

[0039] The present utility model is not limited to the above optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope of the claims of the present utility model fall within the protection scope of the present utility model. Those skilled in the art should understand that the present utility model specification and its drawings are illustrative and do not constitute limitations on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. Throughout the text, the features guided by "preferably" are only an optional method and should not be understood as having to be set. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A flat clamping tool for a special-shaped strip workpiece, comprising a base plate (1) mounted on a processing table, characterized in that: A bidirectional translation assembly (2) is installed on the base plate (1) and is capable of driving two clamping mechanisms arranged in opposite positions to move toward or away from each other. The clamping mechanism comprises an alignment translation plate (3), a first clamping assembly (4), a second clamping assembly (5) and a third abutting assembly (6), wherein: The two alignment translation plates (3) are arranged in alignment above the base plate (1) and are respectively connected to the two translation blocks (23) of the bidirectional translation assembly (2); The first clamping assembly (4) capable of performing deflection movement relative to the alignment translation plates (3) is installed on the sides facing each other of the two alignment translation plates (3); the second clamping assembly (5) capable of performing secondary deflection movement is installed on the side of the first clamping assembly (4) away from the alignment translation plates (3); and the second clamping assembly (5) is rotatably connected to the third abutting assembly (6) that abuts against the workpiece surface in a limited position on the side away from the first clamping assembly (4).

2. The plane clamping tool for special-shaped strip workpieces according to claim 1, characterized in that: The T-shaped support plate (31) of the alignment translation plate (3) is mounted on the translation block (23), and the upper end surface of the T-shaped support plate (31) is provided with a mounting transverse plate (32) parallel to the base plate (1). The T-shaped support plate (31) is also symmetrically provided with through holes (311) located on both sides of the bidirectional translation assembly (2), wherein the through holes (311) are penetrated by guide rods (12) located above the plate body of the base plate (1).

3. The plane clamping tool for special-shaped strip workpieces according to claim 2, characterized in that: A first U-shaped through groove (321) is provided on the side of the mounting transverse plate (32), and a first arc-shaped rail groove (322) communicating with the first U-shaped through groove (321) is provided on the bottom surface of the arc-shaped groove of the first U-shaped through groove (321) defined by the plate body of the mounting transverse plate (32).

4. The plane clamping tool for special-shaped strip workpieces according to claim 3, characterized in that: The first clamping assembly (4) comprises a first fan-shaped clamping plate (41), a first rail (42) and a blocking bar (43), wherein: The first rail (42) is installed on the arc-shaped side surface of the plate body of the first sector-shaped clamping plate (41), and the sealing strips (43) are arranged at both ends of the first rail (42); The first sector-shaped clamping plate (41) is inserted into the first U-shaped through groove (321), and the first rail (42) is synchronously tracked in the first arc rail groove (322).

5. The plane clamping tool for special-shaped strip workpieces according to claim 4, characterized in that: The first fan-shaped clamping plate (41) is also provided with a second U-shaped through-groove (44) on the side of the plate body away from the first U-shaped through-groove (321), and the first fan-shaped clamping plate (41) is also provided with a second arc track groove (45) on the side of the plate body defining the bottom surface of the second U-shaped through-groove (44).

6. The plane clamping tool for special-shaped strip workpieces according to claim 5, characterized in that: The second fan-shaped clamping plate (51) of the second clamping assembly (5) is inserted into the second U-shaped through groove (44), and the second rail (52) arranged on the arc-shaped side surface of the second fan-shaped clamping plate (51) is inserted into the second arc-shaped rail groove (45). A third rotation groove (53) for rotationally connecting to the third abutting assembly (6) is also formed on the edge of the plate body of the second sector-shaped clamping plate (51) away from the second U-shaped through groove (44).

7. The plane clamping tool for special-shaped strip workpieces according to claim 6, characterized in that: The third abutment assembly (6) comprises a rotating head (61), a rotating shaft (62), an arc-shaped abutment plate (63) and a limit spring (64), wherein: The rotating head (61) is rotatably inserted into the third rotating groove (53) via the rotating shaft (62); an arc-shaped abutting plate (63) capable of abutting against a workpiece surface is provided at one end of the rotating head (61) away from the third rotating groove (53). The limit spring (64) for defining the initial relative position of the arc-shaped abutting plate (63) and the second sector-shaped clamping plate (51) is arranged between the arc-shaped abutting plate (63) and the second sector-shaped clamping plate (51).

8. The plane clamping tool for special-shaped strip workpieces according to claim 7, characterized in that: The two ends of the guide rod (12) are mounted on the base plate (1) via vertical plates (11) arranged on the upper edge of the plate body of the base plate (1).

9. The plane clamping tool for special-shaped strip workpieces according to claim 8, characterized in that: The bidirectional translation assembly (2) comprises a guide groove (21) embedded in the base plate (1), a double-threaded rotating shaft (22) rotatably inserted in the guide groove (21), and two translation blocks (23) inserted on the double-threaded rotating shaft (22). One end of the double-threaded rotating shaft (22) passes through the groove wall of the guide groove (21) and is transmission-connected to a rotating motor (24) arranged on the base plate (1), so that the double-threaded rotating shaft (22) can rotate on the rotating motor (24), thereby driving the two translation blocks (23) to move towards or away from each other.

10. The plane clamping tool for special-shaped strip workpieces according to claim 9, characterized in that: The arc surface of the arc-shaped abutment plate (63) is also provided with anti-slip protrusions (65).

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