A clamping device for adaptive thin-walled parts

Abstract

The present invention relates to the field of mechanical processing technology, and discloses a clamping device for adaptive thin-walled parts, including a base plate, a support shaft assembly is provided on the base plate, the support shaft assembly can be telescopically set, and a support plate is fixed on the upper end of the support shaft assembly. The present invention sets the thin-walled parts to be able to stretch outward in multiple directions, and the thin-walled parts laid on the support plate can be stretched outward in multiple directions, and can also be limited, so that the thin-walled parts are limited, and at the same time, the axis of the thin-walled parts is positioned to avoid changes; the center position of the thin-walled parts is relatively avoided from moving, and when the clamping pieces move outward, the range of movement of multiple clamping pieces is set to be the same, the thin-walled parts are expanded outward, and the expansion state of the thin-walled parts is the same, so as to achieve a flattening effect, and the circular position of the thin-walled parts is relatively avoided from moving, and at the same time, it can be fixed after flattening, which is convenient for operation.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical processing, in particular to a clamping device for adaptive thin-walled parts. Background Art

[0002] Thin-walled parts have many advantages such as light weight and are widely used in many fields.

[0003] In the process of clamping thin-walled parts, thin-walled parts are prone to bending deformation due to their relatively low rigidity. It is extremely important to position the surface of thin-walled parts and stretch and fix them. Therefore, in the processing of thin-walled parts with local deformation, it is necessary to clamp them and evenly unfold the thin-walled parts so that they can be processed in an appropriate position, and to ensure that the thin-walled parts do not deform during the processing;

[0004] However, in the process of clamping the thin-walled parts, the center position of the thin-walled parts needs to be fixed, and then the periphery thereof needs to be stretched so that the thin-walled parts can be stretched, and then the edges of the thin-walled parts need to be positioned and clamped. Therefore, fixing a thin-walled part requires multiple cumbersome operations, and the thin-walled parts are easily misaligned, causing the processing position of the thin-walled parts to change, thus affecting the precision and accuracy of the thin-walled parts. Summary of the invention

[0005] The purpose of the present invention is to provide a clamping device for adaptive thin-walled parts to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: an adaptive thin-walled part clamping device, comprising a base plate, a support shaft assembly is provided on the base plate, the support shaft assembly can be telescopically arranged, a support plate is fixed to the upper end of the support shaft assembly, and the support plate is used to support the thin-walled part;

[0007] A clamping sheet for supporting is provided on the outer side of the support plate, a clamping assembly for clamping is installed on the outer side of the clamping sheet, and the support plate and the clamping sheet are arranged on the same horizontal plane;

[0008] A tilting movement unit for supporting expansion is installed at the lower end of the clamping piece, and the tilting movement unit drives the clamping piece to move.

[0009] Preferably, a matching opening is provided on the outer side of the support plate, and when the clamping piece is reset, it is embedded in the matching opening;

[0010] A cross support frame is also fixed to the lower end of the support plate, and a parallel rod is slidably installed inside the cross support frame;

[0011] The outer ends of the parallel rods are fixed to the lower ends of the clamping sheets.

[0012] Preferably, a lateral sliding groove is provided on the outer side of the cross support frame, and a sliding block is integrally formed on the outer side of the parallel rod. The sliding block is cooperatedly arranged in the lateral sliding groove, and the sliding block can slide with the parallel rod.

[0013] Preferably, a bayonet is provided on the outer side of the base plate, and the bayonet is used to be hinged to the tilting and moving unit, and the upper end of the tilting and moving unit is hinged to the lower end surface of the clamping piece.

[0014] Preferably, the tilting moving unit is an inclined rod made of metal, and a connecting shaft is inserted into the lower end of the inclined rod;

[0015] Connecting grooves are provided on the inner walls on both sides of the bayonet, the connecting shaft is clamped in the connecting grooves, and a fastening sheet for limiting the connecting shaft is fixed on the upper end of the base plate.

[0016] Preferably, the support shaft assembly is mounted on the upper end of the base plate, and the support shaft assembly includes a sleeve and a sleeve shaft, the sleeve is fixed to the upper end of the fastening plate, the sleeve shaft is sleeved on the upper end of the sleeve, a socket is provided on the outer wall of the sleeve close to the upper end, a threaded end is fixed on the outer wall of the sleeve on the side corresponding to the socket, a limiting bolt is inserted from the socket, and the limiting bolt is threadedly connected with the threaded end;

[0017] The upper end of the sleeve shaft is fixed to the cross support frame, and a shallow groove and a deep groove are opened on the outer wall of the sleeve shaft. The area of ​​the shallow groove is larger than the area of ​​the deep groove. The two have the same shape and are arranged overlappingly. The deep groove is arranged to be through, and the limit bolt passes through the deep groove, and the torsion end of the limit bolt is squeezed with the shallow groove.

[0018] Preferably, a support spring is further provided inside the sleeve, and the support spring is used to support the sleeve shaft.

[0019] Preferably, the clamping assembly comprises a clamping frame 1 and a clamping frame 2;

[0020] The clamping frame 1 is arranged in a U shape, one end of which is fixed to the lower end of the clamping sheet, a fastening plate 1 is integrally formed on the outer side of the clamping frame 1, the outer side of the other end of the clamping frame 1 is arranged in a guide groove, and a threaded hole is provided at the upper end of the fastening plate 1;

[0021] One end of the second clamping frame is arranged in cooperation with the guide groove, and the end has a double plate, a second fastening plate is fixed on the outer side of the double plate, a fastening bolt is passed through the second fastening plate, and the fastening bolt is threadedly connected with the threaded hole, and the other end of the second clamping frame is arranged as a clamping end, the clamping end is made of metal, and its lower end is used for extrusion with the clamping sheet, and its lower end is smoothly arranged;

[0022] The first clamping frame and the second clamping frame are integrally arranged in a frame shape, and are used for local thin-walled parts to extend therein.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (1) The present invention enables the thin-walled parts to be stretched outward in multiple directions, so that the thin-walled parts laid on the support plate can be stretched outward in multiple directions, and can also be limited, so that the thin-walled parts are limited, and at the same time, the axis of the thin-walled parts is positioned to avoid changes.

[0025] (2) The present invention prevents the center of the circle of the thin-walled part from moving relatively. When the clamping pieces move outward, the range of movement of multiple clamping pieces is set to be the same, so that the thin-walled part is expanded outward and the expansion state of the thin-walled parts is the same, thereby achieving a flattening effect. The circular position of the thin-walled part is also relatively avoided from moving. At the same time, it can be fixed after flattening, which is easy to operate.

[0026] (3) The present invention provides a multi-directional simultaneous movement. The device clamps thin-walled parts and generates a stretching movement by controlling downward extrusion. The multi-directional simultaneous movement improves efficiency. The limit bolts and tightening bolts facilitate tightening and can control the degree of tightening to avoid damage to the thin-walled parts.

[0027] (4) The present invention can roll up the edge of the thin-walled part to a certain extent in the clamping assembly by tightening the clamping assembly, so that the thin-walled part can be clamped even if the shape or size of the part is varied, without limitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the lower end structure of the support plate of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the clamping sheet of the present invention;

[0031] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0032] Figure 5 This is a schematic diagram of the structure of the support shaft assembly of the present invention;

[0033] Figure 6 It is a schematic diagram of the upper structure of the substrate of the present invention.

[0034] In the figure: 1. base plate; 11. fastening plate; 12. bayonet; 13. connecting groove; 2. support shaft assembly; 21. sleeve; 22. support spring; 23. socket; 24. threaded end; 25. limit bolt; 26. sleeve; 27. shallow groove; 28. deep groove; 3. support plate; 31. matching mouth; 32. cross support frame; 33. lateral slide groove; 34. parallel rod; 35. sliding block; 4. clamping plate; 5. clamping assembly; 51. clamping frame one; 52. clamping frame two; 53. fastening plate one; 54. threaded hole; 55. guide groove; 56. double plate; 57. fastening plate two; 58. fastening bolt; 59. clamping end; 6. tilting moving unit; 61. inclined rod; 62. connecting shaft. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-6 The present invention provides a technical solution: an adaptive thin-walled part clamping device, comprising a base plate 1, a support shaft assembly 2 is provided on the base plate 1, the support shaft assembly 2 can be telescopically arranged, a support plate 3 is fixed to the upper end of the support shaft assembly 2, and the support plate 3 is used to support the thin-walled part;

[0037] A clamping sheet 4 for supporting is provided on the outer side of the support plate 3, and a clamping assembly 5 for clamping is installed on the outer side of the clamping sheet 4, and the support plate 3 and the clamping sheet 4 are arranged on the same horizontal plane;

[0038] The lower end of the clamping piece 4 is provided with a tilting movement unit 6 for supporting and expanding, and the tilting movement unit 6 drives the clamping piece 4 to move.

[0039] The outer side of the support plate 3 is provided with a matching opening 31. When the clamping piece 4 is reset, it is embedded in the matching opening 31, so as to facilitate the clamping piece 4 to be converged and realize the supporting function;

[0040] A cross support frame 32 is also fixed to the lower end of the support plate 3, and a parallel rod 34 is slidably installed inside the cross support frame 32;

[0041] The outer ends of the parallel rods 34 are fixed to the lower ends of the clamping pieces 4, so that the support plate 3 and the clamping pieces 4 are arranged horizontally, and changes are avoided during the deformation process, so that thin-walled parts can be maintained.

[0042] The outer side of the cross support frame 32 is provided with a lateral sliding groove 33 that penetrates through it, and the outer side of the parallel rod 34 is integrally formed with a sliding block 35. The sliding block 35 is arranged in the lateral sliding groove 33, and the sliding block 35 can slide with the parallel rod 34, so that the parallel rod 34 is restricted to avoid extending too much outward and falling out. The parallel rod 34 controls the horizontal state between the support plate 3 and the clamping piece 4.

[0043] A bayonet 12 is provided on the outer side of the base plate 1, and the bayonet 12 is used to be hinged with the tilting moving unit 6. The upper end of the tilting moving unit 6 is hinged with the lower end surface of the clamping piece 4. The tilting moving unit 6 controls the state of moving outward and also achieves a limiting effect.

[0044] The tilting moving unit 6 is a tilting rod 61 made of metal, and a connecting shaft 62 is inserted into the lower end of the tilting rod 61;

[0045] Connecting grooves 13 are provided on the inner walls on both sides of the bayonet 12, and the connecting shaft 62 is clamped in the connecting grooves 13. A fastening plate 11 for limiting the connecting shaft 62 is fixed to the upper end of the base plate 1. Through the hinged state of the connecting shaft 62, the inclined rod 61 can be tilted along, and the degree of inclination is controlled by the degree of downward squeezing of the support shaft assembly 2.

[0046] The support shaft assembly 2 is installed at the upper end of the base plate 1. The support shaft assembly 2 includes a sleeve 21 and a sleeve shaft 26. The sleeve 21 is fixed to the upper end of the fastening plate 11. The sleeve shaft 26 is sleeved on the upper end of the sleeve 21. A socket 23 is provided on the outer wall of the sleeve 21 near the upper end. A threaded end 24 is fixed on the outer wall of the sleeve 21 on the side corresponding to the socket 23. A limiting bolt 25 is inserted from the socket 23. The limiting bolt 25 is threadedly connected with the threaded end 24, so that the limiting bolt 25 can be loosened or tightened, and the limiting bolt 25 is tightened to control the length of the support shaft assembly 2.

[0047] The upper end of the sleeve shaft 26 is fixed to the cross support frame 32. A shallow groove 27 and a deep groove 28 are provided on the outer wall of the sleeve shaft 26. The area of ​​the shallow groove 27 is larger than that of the deep groove 28. The two have the same shape and are overlapped. The deep groove 28 is through-set. The limiting bolt 25 passes through the deep groove 28, and the torsion end of the limiting bolt 25 is squeezed with the shallow groove 27. When tightened, the limiting bolt 25 is squeezed with the shallow groove 27 to limit the sleeve shaft 26.

[0048] A support spring 22 is also provided inside the sleeve 21, and the support spring 22 is used to support the sleeve shaft 26 to facilitate subsequent resetting.

[0049] The clamping assembly 5 includes a clamping frame 1 51 and a clamping frame 2 52;

[0050] The clamping frame 51 is U-shaped, one end of which is fixed to the lower end of the clamping sheet 4, and a fastening plate 53 is integrally formed on the outer side of the clamping frame 51. The outer side of the other end of the clamping frame 51 is provided with a guide groove 55, and a threaded hole 54 is provided at the upper end of the fastening plate 53.

[0051] One end of the second clamping frame 52 is matched with the guide groove 55, and the end has a double plate 56, so that the second clamping frame 52 can slide along the guide groove 55. A second fastening plate 57 is fixed to the outer side of the double plate 56. A fastening bolt 58 is passed through the second fastening plate 57, and the fastening bolt 58 is threadedly connected with the threaded hole 54. The other end of the second clamping frame 52 is a clamping end 59, which is made of metal. The lower end is used for squeezing with the clamping sheet 4, and the lower end is smooth. The smoothness can also produce the effect of squeezing, and can make the thin-walled parts slide when the squeezing force is not large.

[0052] The first clamping frame 51 and the second clamping frame 52 are arranged in a frame shape as a whole, and are used for local thin-walled parts to extend therein.

[0053] In the reset state, the clamping piece 4 is slidably clamped in the matching opening 31, and the support shaft assembly 2 is in a reset state, the inclined rod 61 is also inclined to vertical, the clamping piece 4 and the support plate 3 are in the same plane, and the limit bolt 25 is in a tightened state to prevent the sleeve 21 and the sleeve shaft 26 from moving, so that the upper end can place the workpiece and carry out processing.

[0054] During the clamping deformation, the thin-walled part is placed on the upper end of the support plate 3 and laid on the clamping piece 4. The fastening bolt 58 is then twisted to squeeze the clamping end 59 against the thin-walled part. The limiting bolt 25 is then loosened to apply pressure to the support plate 3 and squeeze the middle position of the thin-walled part to prevent the thin-walled part from being displaced. The support shaft assembly 2 is gradually compressed, the inclined rod 61 expands outward, the clamping piece 4 moves outward, the thin-walled part is stretched, and in the process of the thin-walled part being stretched, its surroundings expand outward, and the clamping end 59 is not tightened. The thin-walled parts are caused to have a certain sliding effect and are stretched outward. Since the axial position is fixed, the outward stretching states of the thin-walled parts at different positions are inconsistent. At the same time, after the thin-walled parts are stretched to the extreme, they slide with the clamping end 59 to avoid damage to the thin-walled parts. Then, the fastening bolts 58 are tightened to limit the fastening bolts 58, which are the final tightening and clamping of the thin-walled parts to avoid movement. Subsequently, the limiting bolts 25 are tightened to achieve tightening, that is, the expansion degree of the inclined rod 61 is also limited, so that the thin-walled parts can be limited in multiple directions for easy processing.

[0055] The thin-walled parts laid on the support plate 3 can be stretched outward in multiple directions, and can also be limited, so that the thin-walled parts are limited, and the axis of the thin-walled parts is positioned to avoid changes;

[0056] Secondly, when the clamping pieces 4 move outward, the range of movement of the multiple clamping pieces 4 is set to be the same, so that the thin-walled parts are expanded outward, so that the expansion state of the thin-walled parts is the same, and a flattening effect is achieved. The center position of the thin-walled parts is also relatively avoided from moving. At the same time, they can be fixed after flattening, which is convenient for operation;

[0057] Secondly, the device clamps thin-walled parts, generates stretching movement by controlling downward extrusion, and moves in multiple directions at the same time to improve efficiency. It is also convenient for tightening through the limit bolts 25 and the tightening bolts 58, and can also control the degree of tightening to avoid damage to thin-walled parts.

[0058] During the tightening of the clamping assembly 5, the edge of the thin-walled part can be rolled up to a certain extent inside the clamping assembly 5, so that the thin-walled part can be clamped even if the shape or size of the part is varied without limitation.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive clamping device for thin-walled parts, characterized in that: It comprises a base plate (1), the base plate (1) being provided with a support shaft assembly (2), the support shaft assembly (2) being capable of being telescopically arranged, a support plate (3) being fixed to the upper end of the support shaft assembly (2), the support plate (3) being used to support thin-walled parts; A clamping sheet (4) for supporting is provided on the outer side of the support plate (3), a clamping assembly (5) for clamping is installed on the outer side of the clamping sheet (4), and the support plate (3) and the clamping sheet (4) are arranged on the same horizontal plane; The lower end of the clamping piece (4) is provided with an inclined movement unit (6) for supporting expansion, and the inclined movement unit (6) drives the clamping piece (4) to move; The outer side of the support plate (3) is provided with a matching opening (31), and when the clamping piece (4) is reset, it is embedded in the matching opening (31); A cross support frame (32) is also fixed to the lower end of the support plate (3), and a parallel rod (34) is slidably mounted inside the cross support frame (32); The outer ends of the parallel rods (34) are fixed to the lower ends of the clamping sheets (4); The outer side of the base plate (1) is provided with a bayonet (12), the bayonet (12) being used for being hingedly connected to the tilting and moving unit (6), and the upper end of the tilting and moving unit (6) is hingedly connected to the lower end surface of the clamping sheet (4); The tilting moving unit (6) is a tilting rod (61) made of metal, and a connecting shaft (62) is inserted into the lower end of the tilting rod (61); Connecting grooves (13) are provided on the inner walls on both sides of the bayonet (12), the connecting shaft (62) is clamped in the connecting grooves (13), and a fastening sheet (11) for limiting the position of the connecting shaft (62) is fixed to the upper end of the base plate (1); The support shaft assembly (2) is mounted on the upper end of the base plate (1), and the support shaft assembly (2) comprises a sleeve (21) and a sleeve shaft (26), wherein the sleeve (21) is fixed to the upper end of the fastening plate (11), and the sleeve shaft (26) is sleeved on the upper end of the sleeve (21), and a socket (23) is provided on the outer wall of the sleeve (21) near the upper end, and a threaded end (24) is fixed on the outer wall of the sleeve (21) on the side corresponding to the socket (23), and a limiting bolt (25) is inserted from the socket (23), and the limiting bolt (25) is threadedly connected to the threaded end (24); The upper end of the sleeve shaft (26) is fixed to the cross support frame (32), and a shallow groove (27) and a deep groove (28) are provided on the outer wall of the sleeve shaft (26). The area of ​​the shallow groove (27) is larger than the area of ​​the deep groove (28), and the two have the same shape and are arranged to overlap. The deep groove (28) is arranged to penetrate, and the limiting bolt (25) penetrates the deep groove (28), and the torsion end of the limiting bolt (25) is pressed against the shallow groove (27).

2. The clamping device for adaptive thin-walled parts according to claim 1 is characterized in that: The outer side of the cross support frame (32) is provided with a lateral sliding groove (33) extending therethrough, and the outer side of the parallel rod (34) is integrally formed with a sliding block (35). The sliding block (35) is arranged in the lateral sliding groove (33) and can slide along with the parallel rod (34).

3. The clamping device for adaptive thin-walled parts according to claim 1 is characterized in that: A support spring (22) is also provided inside the sleeve (21), and the support spring (22) is used to support the sleeve shaft (26).

4. The clamping device for adaptive thin-walled parts according to claim 1 is characterized in that: The clamping assembly (5) comprises a clamping frame 1 (51) and a clamping frame 2 (52); The clamping frame 1 (51) is arranged in a U shape, one end of which is fixed to the lower end of the clamping sheet (4), a fastening plate 1 (53) is integrally formed on the outer side of the clamping frame 1 (51), a guide groove (55) is arranged on the outer side of the other end of the clamping frame 1 (51), and a threaded hole (54) is provided at the upper end of the fastening plate 1 (53); One end of the second clamping frame (52) is arranged in cooperation with the guide groove (55), and the end has a double plate (56), a second fastening plate (57) is fixed to the outer side of the double plate (56), a fastening bolt (58) is passed through the second fastening plate (57), and the fastening bolt (58) is threadedly connected to the threaded hole (54), and the other end of the second clamping frame (52) is arranged in the form of a clamping end (59), the clamping end (59) is made of metal, and its lower end is used for being squeezed with the clamping sheet (4), and its lower end is smoothly arranged; The first clamping frame (51) and the second clamping frame (52) are integrally arranged in a frame shape, and are used for local thin-walled parts to extend therein.

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