Workpiece clamping device and workpiece clamping method

Abstract

The present invention discloses a workpiece clamping device and a workpiece clamping method, the workpiece clamping device comprises a base plate, an adjustment seat, a support member and a lifting member, the first side of the adjustment seat has a hinged portion, the first side of the adjustment seat is movably hinged with the base plate through the hinged portion, the adjustment seat has a support member and a lifting member at a position from the first side to the second side, the support member is supported between the support member of the adjustment seat and the base plate, and the two ends of the lifting member are respectively connected to the lifting member of the adjustment seat and the base plate. The present invention can adapt to the complex process requirements of the workpiece, and conveniently perform complex position adjustment and positioning on the workpiece to be processed.

Description

Technical Field

[0001] The invention belongs to the field of workpiece clamping, and in particular relates to a workpiece clamping device and a workpiece clamping method. Background Art

[0002] During machining, fixtures are basically used. Common fixtures include vises and chucks, which are used to clamp and position the workpiece.

[0003] However, the existing clamping method is single and cannot complete the clamping effect for some complex workpieces, cannot adapt to the complex process requirements during workpiece processing, and is not convenient for complex position adjustment and positioning of the workpiece to be processed. Summary of the invention

[0004] The object of the present invention is to provide a workpiece clamping device and a workpiece clamping method, which can adapt to the complex process requirements of the workpiece and conveniently perform complex position adjustment and positioning on the workpiece to be processed.

[0005] The technical solution is as follows:

[0006] The present invention provides a workpiece clamping device, including a base plate, an adjusting seat, a supporting member and a lifting member. The first side of the adjusting seat has a hinge portion, and the first side is movably hinged to the base plate through the hinge portion. The adjusting seat has a supporting portion and a lifting portion from the first side to the second side. The supporting member is supported between the supporting portion of the adjusting seat and the base plate, and the two ends of the lifting member are respectively connected to the lifting portion of the adjusting seat and the base plate.

[0007] In one embodiment, a connecting seat is further included, and at least one of the hinged part, the supporting part or the lifting part is connected to the base plate through the connecting seat; and / or at least one of the hinged part, the supporting part or the lifting part is connected to the adjustment seat through the connecting seat.

[0008] In one embodiment, the connecting seat comprises a first seat body, a connecting member and a locking member, the first seat body is provided with a first mounting hole and a second mounting hole, the first mounting hole is provided at an end of the first seat body, the second mounting hole is provided at a side of the first seat body, and the first mounting hole and the second mounting hole are communicated with each other inside the first seat body;

[0009] One end of the connecting member is installed in the first mounting hole, and the locking member is installed in the second mounting hole. The locking member cooperates with one end of the connecting member located in the first mounting hole.

[0010] In one embodiment, the support member includes at least two support bodies, and the at least two support bodies are spliced ​​along the longitudinal direction.

[0011] In one embodiment, a tangential member is further included, which is at least partially spherical or cylindrical to form a tangential portion, the upper portion of the tangential member is pressed against the support portion of the adjustment seat, and the lower portion is tangent to the upper end of the support member through the tangential portion.

[0012] In one of the embodiments, the connecting seat is provided on the base plate and the adjusting seat, the outer end of the connecting seat is provided with a side ear facing the side, and a lifting hook is formed on the inner side of the side ear, and lifting ears are provided at both ends of the lifting member, and the lifting ears of the lifting member are clamped in the lifting hook through the side.

[0013] In one embodiment, the lifting member includes a first lifting rod, a second lifting rod and an adjusting nut. The inner end of the first lifting rod is provided with an external thread, and the inner end of the second lifting rod is movably provided with the adjusting nut. The adjusting nut is provided with an internal thread, and the internal thread of the adjusting nut cooperates with the external thread of the first lifting rod. The lifting ears are respectively arranged on the outer ends of the first lifting rod and the second lifting rod.

[0014] In one of the embodiments, through holes are provided at the outer ends of the first lifting rod and the second lifting rod, and after the cross bar passes through the through holes, two lifting ears are formed at both ends of the cross bar.

[0015] In one embodiment, a limiting head is provided at the inner end of the second lifting rod, a limiting hole is provided at the outer end of the adjusting nut, the outer end of the second lifting rod passes through the limiting hole, and the limiting head at the inner end thereof is limited in the adjusting nut.

[0016] In one of the embodiments, the base plate and the adjustment seat are evenly provided with a plurality of fixing holes arranged in horizontal and vertical arrays, and there are three connecting seats on the base plate and the adjustment seat, each of which is fixed at a corresponding fixing hole, and the base plate and the adjustment seat are hinged through a first pair of connecting seats, and the base plate and the adjustment seat are supported by a second pair of connecting seats, and the base plate and the adjustment seat are lifted by the second pair of connecting seats.

[0017] The present invention provides a workpiece clamping method, which comprises the following steps:

[0018] The adjusting seat is rotated relative to the bottom plate through the hinged portion between the adjusting seat and the bottom plate;

[0019] A support member is provided between the bottom plate and the support portion of the adjustment seat, so that the adjustment seat is inclined at a set angle relative to the bottom plate;

[0020] A lifting member is provided between the adjusting seat and the lifting portion of the bottom plate, so that the adjusting seat and the lifting portion of the bottom plate are tightened to lock the angle of the adjusting seat.

[0021] The technical solution provided by the present invention has the following advantages and effects:

[0022] Before processing the workpiece to be processed, one side of the adjustment seat is first hinged to the base plate, and then the corresponding support member is selected to support between the adjustment seat and the supporting part of the base plate according to the processing requirements of the workpiece to be processed, so that the angle between the adjustment seat and the base plate is determined, and then the adjustment seat and the lifting part of the base plate are tightened by the lifting member to prevent the adjustment seat from loosening or flipping relative to the base plate; this structure can conveniently adjust the angle and position of the workpiece to be processed relative to the tool, and is very reliable for clamping the workpiece to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings herein show specific examples of the technical solutions described in the present invention, and together with the specific implementation methods, constitute a part of the specification, and are used to explain the technical solutions, principles and effects of the present invention.

[0024] Unless otherwise specified or defined, the same reference numerals in different drawings represent the same or similar technical features, and the same or similar technical features may also be represented by different reference numerals.

[0025] It should be noted that: Figures 1 to 3 , Figures 15 to 17 In the figure, there is a workpiece to be processed, while in other figures, there is no workpiece to be processed.

[0026] Figure 1 is a three-dimensional diagram of the workpiece clamping device in the first embodiment of the present invention;

[0027] Figure 2 is a side view of the workpiece clamping device in the first embodiment of the present invention;

[0028] Figure 3 is a side cross-sectional view of the workpiece clamping device in the first embodiment of the present invention;

[0029] Figure 4 is an exploded view of the workpiece clamping device in the first direction in the first embodiment of the present invention;

[0030] Figure 5 is an exploded view of the workpiece clamping device in the second direction in the first embodiment of the present invention;

[0031] Figure 6 This is a locking structure diagram of the first connecting seat in the first embodiment of the present invention;

[0032] Figure 7 is a structural diagram of the connecting member in the first embodiment of the present invention;

[0033] Figure 8 is a structural diagram of the locking member in the first embodiment of the present invention;

[0034] Fig. 9 This is a locking structure diagram of the second connecting base in the first embodiment of the present invention;

[0035] Fig.10 This is a locking structure diagram of the third connecting seat in the first embodiment of the present invention;

[0036] Fig.11 is a structural diagram of the third connecting socket in the first embodiment of the present invention;

[0037] Fig.12 is a structural diagram of the lifting member in the first embodiment of the present invention;

[0038] Fig.13 is a cross-sectional view of the lifting member in the first embodiment of the present invention;

[0039] Fig.14 is an exploded view of the lifting member in the first embodiment of the present invention;

[0040] Fig.15 is a structural diagram of the workpiece clamping device in the second embodiment of the present invention;

[0041] Fig.16 is a side view of the workpiece clamping device in the second embodiment of the present invention;

[0042] Fig.17 is a side cross-sectional view of the workpiece clamping device in the second embodiment of the present invention;

[0043] Fig.18 is an exploded view of the workpiece clamping device in the second embodiment of the present invention;

[0044] Fig.19 is a structural diagram of the fixed base in Embodiment 2 of the present invention;

[0045] Fig. 20 is a structural diagram of the adjustment seat in the second embodiment of the present invention;

[0046] Fig.21 is a structural diagram of the distance adjustment member in the second embodiment of the present invention;

[0047] Description of reference numerals:

[0048] 11. bottom plate, 12. adjustment seat, 121. first circumferential positioning portion, 1211. first positioning edge, 1212. second positioning edge, 1213. third positioning edge, 13. turntable, 131. second circumferential positioning portion, 14. fixed base,

[0049] 21. Fixing hole, 22. Positioning sleeve,

[0050] 31. Connecting seat, 311. Articulated portion, 3111. Articulated hole, 3112. Articulated shaft, 312. Support portion, 313. Lifting portion, 3131. Side ear, 3132. Lifting hook portion, 3133. Rotating hole, 321. First seat body, 3211. First mounting hole, 3212. Second mounting hole, 33. Positioning groove,

[0051] 322, connecting piece, 3221, first locking tooth, 3222, connecting thread, 323, locking piece, 3231, second locking tooth, 3232, locking hole, 324, locking nail body,

[0052] 40. Support member, 41. Support body, 42. Tangential member,

[0053] 50. lifting member, 51. first lifting rod, 511. rod body, 512. end, 52. second lifting rod, 521. stopper, 5211. annular groove, 53. adjusting nut, 531. stopper hole, 532. outer sleeve, 533. inner sleeve, 54. through hole, 55. cross bar, 551 lifting ear, 56. rolling member,

[0054] 60. distance adjustment member, 61. adjustment base, 62. first movable block, 63. second movable block, 641. first guide rail, 642. first guide groove, 651. second guide rail, 652. second guide groove, 66. adjustment bolt, 67. matching inclined surface,

[0055] 70. Workpiece to be processed. DETAILED DESCRIPTION

[0056] In order to facilitate the understanding of the present invention, specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings.

[0057] Unless otherwise specified or defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. In the context of the actual scenario of the technical solution of the present invention, all technical and scientific terms used herein may also have the meaning corresponding to the purpose of implementing the technical solution of the present invention.

[0058] Unless otherwise specified or defined, the "first, second..." used in this article is merely used to distinguish names and does not represent a specific quantity or order.

[0059] Unless specifically stated or defined otherwise, the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0060] It should be noted that when a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there can be a central component; when an component is considered to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time; when an component is considered to be "installed on" another component, it can be directly installed on the other component or there can be a central component at the same time. When an component is considered to be "set on" another component, it can be directly set on the other component or there can be a central component at the same time.

[0061] Unless otherwise specified or defined, the “said” and “the” used in this document refer to the technical features or technical contents mentioned or described before the corresponding position, and the technical features or technical contents may be the same as or similar to the technical features or technical contents mentioned therein.

[0062] Undoubtedly, technical contents or technical features that are contrary to the purpose of the present invention or are obviously contradictory should be excluded.

[0063] The embodiments of the present invention provide two specific implementation schemes:

[0064] Embodiment 1

[0065] like Figures 1 to 14 As shown, in this embodiment, the workpiece clamping device includes a base plate 11, an adjustment seat 12 and a first positioning mechanism. In this embodiment, the base plate 11 and the adjustment seat 12 both adopt array plates (the base plate 11 and the adjustment seat 12 may also be referred to as a first array plate and a second array plate, respectively). The base plate 11 is provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array. The adjustment seat 12 is also provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array. The first positioning mechanism is disposed between the base plate 11 and the adjustment seat 12, and connects the base plate 11 with the adjustment seat 12.

[0066] Please focus on Figures 2 to 5 As shown, three connecting seats 31 are provided on the bottom plate 11 and the adjusting seat 12, and the six connecting seats 31 are fixed to the fixing holes 21 on the bottom plate 11 and the adjusting seat 12 respectively. The first sides of the bottom plate 11 and the adjusting seat 12 are movably hinged through the hinge parts 311 of the first pair of connecting seats 31. From the first side to the second side, the bottom plate 11 and the adjusting seat 12 are supported by the supporting parts 312 of the second pair of connecting seats 31, and a supporting member 40 is provided between the two connecting seats 31. The bottom plate 11 and the adjusting seat 12 are lifted by the lifting parts 313 of the second pair of connecting seats 31, and a lifting member 50 is provided between the two connecting seats 31. In this embodiment, the first positioning mechanism is the hinge part 311, the supporting part 312, the lifting part 313, the supporting member 40, and the lifting member 50.

[0067] Specifically, the aforementioned first pair of connecting seats 31 is used to realize the articulation between the base plate 11 and the adjustment seat 12. A hinge hole 3111 is provided on the first pair of connecting seats 31. After the hinge shaft 3112 passes through the hinge hole 3111, the movable articulation between the base plate 11 and the adjustment seat 12 is realized, ensuring that the adjustment seat 12 can rotate around the hinge shaft 3112 relative to the base plate 11.

[0068] The second pair of connecting seats 31 and the third pair of connecting seats 31 are arranged in the area from the first side to the second side. They can be set to the second side position, or to the middle area between the first side and the second side, or to the middle area and the second side area respectively.

[0069] In this embodiment, the second pair of connecting seats 31 are arranged in the middle area between the first side and the second side, close to the second side, and a support member 40 is arranged between the second pair of connecting seats 31. The support member 40 may include a plurality of support bodies 41. The plurality of support bodies 41 are spliced ​​along the longitudinal direction. Each support body 41 can be processed into different specifications. When in use, the corresponding number and specifications of support bodies 41 can be selected for splicing according to the different needs of the workpiece 70 to be processed. In addition, since different processing requirements of the workpiece 70 to be processed require the selection of different support bodies 41, the angle of the adjustment seat 12 will change. In order to ensure the effective support of the support member 40 and improve the accuracy of the support height, a tangential member 42 is also provided between the support member 40 and the adjustment seat 12. The tangential member 42 is at least partially spherical or cylindrical to form a tangential portion. The upper part of the tangential member 42 is pressed against the support portion 312 of the adjustment seat 12, and the lower part is tangent to the upper end of the support member 40 through the tangential portion. Preferably, the tangential member 42 can be a spherical or cylindrical member.

[0070] In this embodiment, the third pair of connecting seats 31 is arranged at the second side position, that is, at the outer side position. After the angle of the adjusting seat 12 is adjusted by the supporting member 40, the second side of the bottom plate 11 and the adjusting seat 12 is tightened by the lifting member 50. The tightening operation needs to be performed. The third pair of connecting seats 31 is arranged at the outer side, and when the adjusting seat 12 is in a relatively open state, the operation can be performed more conveniently. The structure of the lifting member 50 is described as follows:

[0071] A side ear 3131 facing the side is provided at the outer end of the third pair of connecting seats 31. The side ears 3131 of the two connecting seats 31 are located on the same side, but the side ears 3131 are offset to one side of their respective ends, and a concave lifting hook portion 3132 is formed on the inner side of the side ear 3131.

[0072] Please focus on Figure 12 to Figure 14As shown, the lifting member 50 includes a first lifting rod 51, a second lifting rod 52 and an adjusting nut 53. The first lifting rod 51 includes a rod body 511 and an end 512. The inner end of the first lifting rod 51 is provided with an external thread, and the inner end of the second lifting rod 52 is movably provided with the adjusting nut 53. The adjusting nut 53 is provided with an internal thread, and the internal thread of the adjusting nut 53 cooperates with the external thread of the first lifting rod 51. The lifting ears are respectively provided at the outer ends of the first lifting rod 51 and the second lifting rod 52. The outer ends of the first lifting rod 51 and the second lifting rod 52 are provided with through holes 54. After the cross bar 55 passes through the through holes 54, two lifting ears are formed at the two ends of the cross bar 55. The lifting ears of the lifting member 50 are clamped in the lifting hook portion 3132 through the side.

[0073] The inner end of the second lifting rod 52 is provided with a limiting head 521, the outer end of the adjusting nut 53 is provided with a limiting hole 531, the outer end of the second lifting rod 52 passes through the limiting hole 531, the limiting head 521 is provided with an annular groove 5211 on the outer end side, and a rolling element 56 is provided in the annular groove 5211, and the rolling element 56 cooperates with the adjusting nut 53. The adjusting nut 53 includes an outer sleeve 532, an inner sleeve 533 and a fixed shaft, the inner sleeve 533 is arranged inside the outer sleeve 532, and the inner sleeve 533 is located inside the rolling element 56 and the limiting head 521 and limits the rolling element 56 and the limiting head 521, and the fixed shaft fixes the outer sleeve 532 and the inner sleeve 533.

[0074] The above-mentioned structure can adjust the angle of the adjustment seat 12. The adjustment seat 12 can be rotated through the hinge part 311. By selecting the support body 41 of the corresponding specification, the different heights of the support member 40 can be determined. After the angle of the adjustment seat 12 is determined, the two ends of the lifting member 50 are respectively clamped on the base plate 11 and the adjustment seat 12, and the adjusting nut 53 is tightened to tighten the base plate 11 and the adjustment seat 12 to achieve the purpose of locking.

[0075] Please focus on Figures 5 to 11 As shown, the three pairs of connection seats 31 are fixedly connected by a quick locking structure, as follows:

[0076] The connecting seat 31 includes a first seat body 321, a connecting piece 322, a locking piece 323 and a locking nail body 324. One end of the connecting piece 322 is provided with a first locking tooth 3221, and the second end is provided with a connecting thread 3222 (the connecting seat 31 is connected to the base plate 11 and the adjustment seat 12 through the connecting thread 3222). The first seat body 321 is provided with a first mounting hole 3211 and a second mounting hole 3212. The first mounting hole 3211 is provided at the end of the first seat body 321, and the second mounting hole 3212 is provided at the end of the first seat body 321. The hole 3212 is formed on the side of the first seat body 321, and the first mounting hole 3211 and the second mounting hole 3212 are connected inside the first seat body 321; one end of the connecting member 322 is mounted on the first mounting hole 3211, and the locking member 323 is mounted on the second mounting hole 3212. After the locking nail body 324 passes through the locking hole 3232 and the two locking members 323 are locked, the locking member 323 matches with one end of the connecting member 322 located in the first mounting hole 3211. The second locking teeth 3231 on the locking member 323 clamp the first locking teeth 3221 on the connecting member 322 from both sides to prevent the connecting member 322 from coming out of the locking member 323. When the locking nail body 324 loosens the two locking members 323, the connecting member 322 can come out of the two locking members 323.

[0077] During installation, one end of the connecting piece 322 can be first connected to the base plate 11 and the adjusting seat 12 through a thread, and then the other end of the connecting piece 322 can be inserted into the first installation hole 3211 of the first seat body 321, and then the locking piece 323 can be inserted from the second installation hole 3212 to lock the connecting piece 322 and the first seat body 321. This structure can realize the quick connection and installation of the first seat body 321 and the base plate 11 and the adjusting seat 12, thereby improving the efficiency of assembly.

[0078] In order to improve the positioning accuracy, a positioning sleeve 22 is provided between the connecting seat and the base plate 11 and the adjusting seat 12. The two sides of one side of the positioning sleeve 22 respectively cooperate with the base plate 11 and the adjusting seat 12 to improve the positioning accuracy of the two.

[0079] It can be understood that the positioning sleeve 22 can also be used for the connection between the adjustment seat 12 and the workpiece 70 to be processed to improve the fixing accuracy of the two.

[0080] Embodiment 2

[0081] like Figures 15 to 21 As shown, in this embodiment, a fixed base 14 and a turntable 13 are also included. The fixed base 14, the adjustment base 12, and the turntable 13 are all in a disc-shaped structure.

[0082] A lifting portion 313 is provided below the adjustment seat 12, and a rotation hole 3133 is provided on the lifting portion 313. The lifting ear 551 of the lifting member 50 is inserted into the rotation hole 3133 and matched with the rotation hole 3133. The connection structure between the fixed base 14 and the bottom plate 11 can refer to the connection structure between the connecting seat 31 and the bottom plate 11 and the adjustment seat 12, that is, a first mounting hole 3211 and a second mounting hole 3212 are provided on the fixed base 14, the first mounting hole 3211 is provided at the end of the fixed base 14, the second mounting hole 3212 is provided at the side of the fixed base 14, and the first mounting hole 3211 and the second mounting hole 3212 are communicated with each other inside the fixed base 14; one end of the connecting member 322 is installed in the first mounting hole 3211, the locking member 323 is installed in the second mounting hole 3212, and the locking member 323 matches with one end of the connecting member 322 located in the first mounting hole 3211. This structure can realize the quick disassembly and assembly of the connecting seat 31 and the base plate 11 and the adjusting seat 12 .

[0083] The adjusting seat 12 and the fixing base 14 are both provided with a hinge part 311 , and the adjusting seat 12 is movably hinged to the fixing base 14 via the hinge part 311 .

[0084] In this embodiment, the hinge structure, the support structure, and the lifting structure form a first positioning mechanism, and the angle of the adjustment seat 12 is adjusted by the first positioning mechanism, which will not be described in detail here. At the same time, a second positioning mechanism is provided between the turntable 13 and the adjustment seat 12. To control the rotation angle of the turntable 13 relative to the adjustment seat 12, the second positioning mechanism is described in detail below:

[0085] A first circumferential positioning portion 121 is provided on the adjustment seat 12, and the first circumferential positioning portion 121 is a positioning notch, and the positioning notch has a first positioning edge 1211, a second positioning edge 1212 and a third positioning edge 1213, and the second positioning edge 1212 is located between the first positioning edge 1211 and the third positioning edge 1213, and the first positioning edge 1211 is opposite to the third positioning edge 1213; there are at least two first circumferential positioning portions 121, and there are three first circumferential positioning portions 121 in this embodiment, and the three circumferential positioning portions are distributed around the adjustment seat 12, and a second circumferential positioning portion 131 (i.e., a positioning pin shaft) is provided on the turntable 13, and a distance adjustment member 60 is provided between the second circumferential positioning portion 131 and the first positioning edge 1211 and between the second circumferential positioning portion 131 and the third positioning edge 1213, and the second positioning mechanism includes the distance adjustment member 60. The circumferential position between the first circumferential positioning portion 121 and the second circumferential positioning portion 131 is adjusted by the distance adjusting member 60 , thereby adjusting the circumferential rotation position of the turntable 13 relative to the adjustment seat 12 .

[0086] Please focus on Fig.21 As shown, the distance adjustment member 60 includes an adjustment base 61, a first movable block 62, a second movable block 63, and an adjustment bolt 66. There are two first movable blocks 62, which are symmetrically mounted on the adjustment base 61, and a matching first guide rail 641 and a first guide groove 642 are provided between the first movable block 62 and the adjustment base 61; a matching second guide rail 651 and a second guide groove 652 are provided between the first movable block 62 and the second movable block 63, and an adjustment bolt 66 passes through the second movable block 63 and the adjustment base 61 at the same time, and the distance between the second movable block 63 and the adjustment base 61 is adjusted by the adjustment bolt 66; a matching inclined surface 67 is provided on the first movable block 62, and a matching inclined surface 67 is also provided on the second movable block 63, and the two matching inclined surfaces 67 slide and cooperate with each other. The height of the second movable block 63 can be adjusted by the adjustment bolt 66, and the distance between the two first movable blocks 62 can be adjusted under the action of the two matching inclined surfaces 67, thereby adjusting and locking the circumferential rotation position of the aforementioned turntable 13.

[0087] In this embodiment, the base plate 11 and the turntable 13 adopt array plates, that is, the base plate 11 is provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array, and the turntable 13 is also provided with a plurality of fixing holes 21 arranged in a horizontal and vertical array. The adjustment seat 12 does not adopt an array plate.

[0088] The purpose of the above embodiments is to exemplarily reproduce and deduce the technical solution of the present invention, and to fully describe the technical solution, purpose and effect of the present invention. Its purpose is to make the public understand the disclosed content of the present invention more thoroughly and comprehensively, and it does not limit the scope of protection of the present invention.

[0089] The above embodiments are not exhaustive enumerations of the present invention, and there may be multiple other implementations not listed. Any replacement and improvement made without violating the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A workpiece clamping device, characterized in that: The utility model comprises a bottom plate, an adjustment seat, a support member and a lifting member, wherein the first side of the adjustment seat has a hinged portion, and the first side thereof is movably hinged with the bottom plate through the hinged portion, and the adjustment seat has a support portion and a lifting portion at a position from the first side to the second side, the support member is supported between the support portion of the adjustment seat and the bottom plate, and the two ends of the lifting member are respectively connected with the lifting portion of the adjustment seat and the bottom plate; It also includes a connecting seat, through which at least one of the hinged portion, the supporting portion or the lifting portion is connected to the bottom plate; and / or, through which at least one of the hinged portion, the supporting portion or the lifting portion is connected to the adjustment seat; The connecting seat comprises a first seat body, a connecting piece, a locking piece and a locking nail body, the first seat body is provided with a first mounting hole and a second mounting hole, the first mounting hole is provided at the end of the first seat body, the second mounting hole is provided at the side of the first seat body, and the first mounting hole and the second mounting hole are communicated with each other inside the first seat body; One end of the connecting member is installed in the first mounting hole, and the locking member is installed in the second mounting hole. The locking member cooperates with one end of the connecting member located in the first mounting hole. One end of the connecting member is provided with a first locking tooth, and the locking member is provided with a second locking tooth. After the locking nail body passes through the locking hole and the two locking members are locked, the second locking teeth on the locking member clamp the first locking teeth on the connecting member from both sides.

2. The workpiece clamping device according to claim 1, characterized in that: The support member includes at least two support bodies, and the at least two support bodies are spliced ​​along the longitudinal direction.

3. The workpiece clamping device according to claim 1, characterized in that: It also includes a tangential piece, which is at least partially spherical or cylindrical to form a tangential portion. The upper portion of the tangential piece is pressed against the support portion of the adjustment seat, and the lower portion is tangential to the upper end of the support piece through the tangential portion.

4. The workpiece clamping device according to claim 1, characterized in that: The connecting seat includes a third pair of connecting seats, and the third pair of connecting seats are arranged on the base plate and the adjustment seat. The outer ends of the third pair of connecting seats are provided with side ears facing the sides, and a lifting hook is formed on the inner side of the side ears. Lifting ears are arranged at both ends of the lifting member, and the lifting ears of the lifting member are clamped in the lifting hook through the side.

5. The workpiece clamping device according to claim 4, characterized in that: The lifting member includes a first lifting rod, a second lifting rod and an adjusting nut. The inner end of the first lifting rod is provided with an external thread. The inner end of the second lifting rod is movably provided with the adjusting nut. The adjusting nut is provided with an internal thread. The internal thread of the adjusting nut cooperates with the external thread of the first lifting rod. The lifting ears are respectively arranged on the outer ends of the first lifting rod and the second lifting rod.

6. The workpiece clamping device according to claim 5, characterized in that: The outer ends of the first lifting rod and the second lifting rod are provided with through holes, and after the cross bar passes through the through holes, two ends of the cross bar form the two lifting ears.

7. The workpiece clamping device according to claim 6, characterized in that: The inner end of the second lifting rod is provided with a limiting head, the outer end of the adjusting nut is provided with a limiting hole, the outer end of the second lifting rod passes through the limiting hole, and the limiting head at the inner end thereof is limited in the adjusting nut.

8. The workpiece clamping device according to claim 1, characterized in that: The base plate and the adjustment seat are evenly provided with a plurality of fixing holes arranged in horizontal and vertical arrays. There are three connecting seats on the base plate and the adjustment seat, each connecting seat is fixed at a corresponding fixing hole, and the base plate and the adjustment seat are hinged through a first pair of connecting seats, the base plate and the adjustment seat are supported by a second pair of connecting seats, and the base plate and the adjustment seat are lifted by the second pair of connecting seats.

9. A workpiece clamping method, characterized in that: Using the workpiece clamping device according to any one of claims 1 to 8, the method comprises the following steps: The adjusting seat is rotated relative to the bottom plate through the hinged portion between the adjusting seat and the bottom plate; A support member is provided between the bottom plate and the support portion of the adjustment seat, so that the adjustment seat is inclined at a set angle relative to the bottom plate; A lifting member is provided between the adjusting seat and the lifting portion of the bottom plate, so that the adjusting seat and the lifting portion of the bottom plate are tightened to lock the angle of the adjusting seat.

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