Clamp with flexible floating holding clamp and clamping method

Abstract

The invention relates to the technical field of clamps, and discloses a clamp with a flexible floating clamping function and a clamping method.The clamp comprises a first supporting plate and a second supporting plate which are perpendicular to each other, the first supporting plate is used for fixing a connecting flange of a workpiece, a support is arranged on the second supporting plate, and a floating clamping mechanism is arranged on the side, away from the first supporting plate, of the support; the floating clamping mechanism is used for fixing an overhanging mechanism of a workpiece, the floating clamping mechanism moves on the support along a first preset path so as to be away from or close to the overhanging mechanism, and the rotary clamping mechanism is arranged on the side, away from the second support plate, of the first support plate and used for laterally fixing the overhanging mechanism. In combination with the working characteristics of the clamp, the box overhanging mechanism is fixed in multiple directions through the floating clamping mechanism and the rotary clamping mechanism, the overall clamping rigidity and machining stability of a workpiece are improved, the machining efficiency is improved, the machining quality of the workpiece is stabilized, stress points are reasonably distributed in the clamping process, and the machining precision is improved. And easy deformation in clamping and abrasion to the surface of the workpiece are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fixtures, and in particular to a fixture with a flexible floating clamp and a clamping method. Background Art

[0002] In the construction machinery industry, for the machining and clamping of boxes, flange surface one-plane two-pin positioning is usually adopted. For the overhanging mechanism at the other end of the box, manual or hydraulic methods are mostly used for support and clamping. Since the overhanging mechanism of the box is mostly a casting blank surface, the support and clamping forces applied to the workpiece blank surface cannot be completely synchronized, resulting in that the forces applied manually or hydraulically to the workpiece cannot be too large, otherwise the workpiece will displace in the direction of the first applied force, affecting the clamping effect and machining accuracy of the box.

[0003] For example, for a reduction gearbox housing, as Figure 3 shown, it mainly includes a connecting flange 700 and an overhanging mechanism 701 provided on one side of the connecting flange 700. There are a plurality of mating parts 702 on the end face of the overhanging mechanism 701. For the box with this structure, the overhanging mechanism of the mold is usually clamped by a lower adjusting fixture for support, pressed from above, and a support fixture is added to the side part. Although this method can fix the box, since the surfaces in contact with the box are mostly casting surfaces, these casting surfaces are uneven and have paint on the surface, and the box clamping belongs to virtual surface contact with basically no pre-tightening force. In the actual machining process, to solve the problem of insufficient rigidity of the box clamping, usually during finish machining, the methods of reducing the machining allowance and lowering the machining speed are adopted to solve the problem. This method can also meet the machining requirements of the box, but the machining efficiency is too low, which is not conducive to the high-efficiency machining of the box.

[0004] In view of the structural characteristics of the box blank and the problem of easy deformation during clamping, it is particularly important to design a fixture with a flexible floating clamp and a clamping method. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixture with a flexible floating clamp and a clamping method to solve the problems in the prior art, which can improve the clamping flexibility and rigidity of the box and solve the problem of too low machining efficiency of the box.

[0006] The present invention provides a fixture with a flexible floating clamp, including:

[0007] A base, including a first support plate and a second support plate perpendicular to each other. The first support plate is used to fix the connecting flange of the workpiece, and a support is provided on the second support plate;

[0008] A floating clamping mechanism, arranged on the side of the support away from the first support plate. The floating clamping mechanism is used to fix the overhanging mechanism of the workpiece, and the floating clamping mechanism moves along a first preset path on the support to move away from or close to the overhanging mechanism;

[0009] The rotary clamping mechanism is arranged on a side of the first supporting plate away from the second supporting plate, and the rotary clamping mechanism is used to laterally fix the overhanging mechanism.

[0010] A clamp with a flexible floating clamp as described above, wherein preferably, the floating clamping mechanism includes a floating seat and at least one clamping member, a first guide groove is provided at the bottom of the floating seat, a first guide protrusion is provided on the side of the support away from the second support plate, the first guide groove is slidably matched with the first guide protrusion, the clamping member is provided on the side of the floating seat facing the cantilever mechanism, and the clamping member can move along a second preset path on the floating seat.

[0011] A clamp with a flexible floating clamp as described above, wherein, preferably, a second guide groove is opened at the bottom of the clamp, a second guide protrusion is convexly provided on the floating seat, the second guide groove and the second guide protrusion are slidably matched, the clamp has symmetrical extension parts on the side facing the cantilever mechanism, a preset distance is provided between the two extension parts, a locking part is provided on the extension part, when the floating clamp mechanism is close to the workpiece, the mating part at the end of the cantilever mechanism is placed between the two extension parts, and the locking part is used to lock or unlock the mating part.

[0012] A clamp with a flexible floating clamp as described above, wherein preferably, the locking member includes a first fixing member and a first protrusion, the first fixing member passes through one of the extensions, and the first protrusion is arranged on a side of the other extension facing the first fixing member.

[0013] A clamp with a flexible floating clamp as described above, wherein preferably, the rotating clamping mechanism is adapted to the upper surface of the workpiece, the first end of the rotating clamping mechanism is arranged on the first support plate through a second fixing member, the rotating clamping mechanism can rotate circumferentially along the axis of the second fixing member, the second end of the rotating clamping mechanism extends to the support and is connected to the first matching mechanism arranged on the support, and at least one third fixing member is arranged in the middle of the rotating clamping mechanism.

[0014] A clamp with a flexible floating clamp as described above, wherein preferably, the first mating mechanism includes a first fixed seat and a fourth fixed member, the fourth fixed member is arranged on the first fixed seat, and a groove is provided on the side of the second end of the rotating clamping mechanism facing the fourth fixed member, and when the rotating clamping mechanism rotates to the first mating mechanism, the inner wall surface of the groove abuts against the fourth fixed member.

[0015] A fixture with a flexible floating clamp as described above, wherein, preferably, a second mating mechanism is further provided on the support. The second mating mechanism includes a pressing member and a supporting member. The supporting member is disposed on a side close to the second support plate, and the pressing member is disposed on a side away from the second support plate. The pressing member is movable along a third preset path. When the pressing member moves to the end of the third preset path, the pressing member and the supporting member are oppositely disposed.

[0016] A fixture with a flexible floating clamp as described above, wherein, preferably, the pressing member includes a second fixed seat, a pressing plate, a fifth fixing member, and a ejector rod. The second fixed seat is disposed on one side of the floating clamp mechanism. The fifth fixing member and the ejector rod are both disposed on the second fixed seat. A first waist-shaped hole is formed in the pressing plate, and the first waist-shaped hole penetrates through the fifth fixing member. The pressing plate is movable on the fifth fixing member, and one end of the pressing plate abuts against the ejector rod.

[0017] A fixture with a flexible floating clamp as described above, wherein, preferably, a first mounting hole is formed in the first support plate. A plurality of sixth fixing members are uniformly disposed in the circumferential direction of the first mounting hole. One end of the connecting flange extends into the first mounting hole, and the sixth fixing members are fixed along the circumferential direction of the connecting flange.

[0018] The present invention further provides a clamping method, which uses the fixture with a flexible floating clamp as described above for clamping, and includes the following steps:

[0019] When loading the workpiece, move the floating clamp mechanism to the start end of the first preset path, move the rotary clamp mechanism to the outside of the base, and place the workpiece in the base;

[0020] Fix the connecting flange to the first support plate, and the overhanging mechanism is located within the projection area of the second support plate;

[0021] Dispose a first mating mechanism and a second mating mechanism on both sides of the floating clamp mechanism respectively, and press against the upper and lower sides of the end of the overhanging mechanism through the second mating mechanism;

[0022] Dispose a clamping member on the floating clamp mechanism, and move the floating clamp mechanism towards the end of the first preset path. When the overhanging mechanism is placed within the floating clamp mechanism, first fix the floating clamp mechanism, and then adjust the clamping member to clamp the mating portion located at the end of the overhanging mechanism;

[0023] Move the rotary clamp mechanism, and fix the movable end of the rotary clamp mechanism to the first mating mechanism;

[0024] Fix the rotary clamp mechanism to the side of the overhanging mechanism.

[0025] Compared with the prior art, the present invention combines the working characteristics of the fixture itself, realizes the precise clamping of the box body through the floatability of the floating clamping mechanism, and can effectively avoid uneven clamping force. The multi-directional fixation of the box body overhanging mechanism is realized through the floating clamping mechanism and the rotary clamping mechanism, improving the overall clamping rigidity and processing stability of the workpiece, enhancing the processing efficiency, stabilizing the processing quality of the workpiece, and reasonably distributing the stress points during the clamping process of the device to avoid easy deformation during clamping and wear on the surface of the workpiece. Brief Description of the Drawings

[0026] Figure 1 is a perspective view of the fixture with a flexible floating clamp provided by an embodiment of the present invention;

[0027] Figure 2 is a perspective view of the fixture with a flexible floating clamp provided by an embodiment of the present invention from another angle;

[0028] Figure 3 is a perspective view of the reducer box body provided by an embodiment of the present invention;

[0029] Figure 4 is a state diagram of the fixture with a flexible floating clamp and the workpiece during loading;

[0030] Figure 5 is a state diagram of the fixture with a flexible floating clamp and the workpiece after fixation;

[0031] Figure 6 is a perspective view of the support provided by an embodiment of the present invention;

[0032] Figure 7 is a perspective view of the floating clamping mechanism provided by an embodiment of the present invention;

[0033] Figure 8 is a perspective view of the floating seat provided by an embodiment of the present invention;

[0034] Figure 9 is a perspective view of the floating seat provided by an embodiment of the present invention from another angle;

[0035] Figure 10 is a perspective view of the clamping member provided by an embodiment of the present invention;

[0036] Figure 11 is a perspective view of the clamping member provided by an embodiment of the present invention from another angle;

[0037] Figure 12 is a state diagram of the floating clamping device and the support after fixation provided by an embodiment of the present invention;

[0038] Figure 13It is a perspective view of the rotary clamping mechanism provided by the embodiment of the present invention;

[0039] Figure 14 It is a state diagram of the first matching mechanism and the rotary clamping mechanism fixed provided by the embodiment of the present invention;

[0040] Figure 15 It is a perspective view of the second matching mechanism provided by the embodiment of the present invention.

[0041] Explanation of reference numerals:

[0042] 10 - Base, 11 - First support plate, 110 - First mounting hole, 111 - Sixth fixing member, 12 - Second support plate;

[0043] 20 - Support, 21 - First guiding projection, 22 - Third support plate, 23 - Fourth support plate, 230 - First screw hole;

[0044] 30 - Floating clamping mechanism, 31 - Floating seat, 310 - First guiding groove, 311 - Second guiding projection, 312 - Second waist-shaped hole, 313 - Fifth support plate, 314 - Second screw hole, 32 - Clamping member, 320 - Second guiding groove, 321 - Extension part, 322 - Third waist-shaped hole, 33 - Locking member, 330 - First fixing member, 331 - First projection;

[0045] 40 - Rotary clamping mechanism, 41 - Second fixing member, 42 - Third fixing member, 43 - Groove;

[0046] 50 - First matching mechanism, 51 - First fixing seat, 52 - Fourth fixing member;

[0047] 60 - Second matching mechanism, 61 - Pressing member, 610 - Second fixing seat, 611 - Pressing plate, 6110 - First waist-shaped hole, 612 - Fifth fixing member, 613 - Thrust rod, 62 - Supporting member;

[0048] 70 - Workpiece, 700 - Connecting flange, 701 - Overhanging mechanism, 702 - Matching part;

[0049] D1 - First direction, D2 - Second direction, D3 - Third direction. Detailed implementation manners

[0050] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0051] See Figure 3As shown, the speed reducer housing includes a connecting flange 700 and an overhanging mechanism 701. The overhanging mechanism 701 has a plurality of mating parts 702. The clamping of the overhanging mechanism 701 is usually fixed by supporting with an adjusting screw at the lower end, pressing tightly at the upper end, and adding a supporting screw at the lateral part. However, since most of the housing surface is a casting surface, this casting surface is uneven and has paint on it. Therefore, the clamping of the overhanging mechanism 701 is mostly a virtual surface contact, with basically no pre-tightening force, and the rigidity is insufficient during clamping. If the rigidity is increased, since the parts tightened first will be stressed first, it will also cause uneven stress, resulting in clamping deviation or contact surface wear.

[0052] Therefore, the present invention provides a fixture with a flexible floating clamp, including a base 10, a floating clamp mechanism 30, and a rotary clamp mechanism 40, wherein:

[0053] See Figure 1 As shown in Fig. -5, the base 10 includes a first support plate 11 and a second support plate 12 that are perpendicular to each other. The first support plate 11 is used to fix the connecting flange 700 of the workpiece 70. In this application, the workpiece 70 takes the speed reducer housing as an example, but other housings with a connecting flange 700 and an overhanging mechanism 701 are also applicable, such as a gearbox housing or other special-shaped housings. The first support plate 11 is used to fix the connecting flange 700, and a support 20 is provided on the second support plate 12. The overhanging mechanism 701 overhangs in the accommodation space formed by the enclosure of the first support plate 11 and the second support plate 12; the first support plate 11 is arranged along a first direction D1, and the first direction D1 is the gravity direction, and the second support plate 12 is arranged along a second direction D2.

[0054] The floating clamp mechanism 30 is arranged on the side of the support 20 away from the first support plate 11. The floating clamp mechanism 30 is used to fix the overhanging mechanism 701. The floating clamp mechanism 30 moves along a first preset path on the support 20 to move away from or close to the overhanging mechanism 701. The first preset path is parallel to the second direction D2. The support 20 is used to carry the floating clamp mechanism 30. When loading, the floating clamp mechanism 30 is located at the starting end of the first preset path, leaving enough space for placing the workpiece 70. By moving the position of the floating clamp mechanism 30 on the first preset path to make it close to the overhanging mechanism 701, it can be flexibly adjusted according to the specific size and position of the workpiece 70 to achieve precise positioning of workpieces 70 of different specifications. When the floating clamp mechanism 30 abuts against the overhanging mechanism 701, the floating clamp mechanism 30 is fixed to the overhanging mechanism 701. The floating characteristic of the floating clamp mechanism 30 can make a certain degree of self-adaptive adjustment according to the shape and position of the surface of the workpiece 70 when abutting against the workpiece 70, improving the rigid fixation while avoiding excessive pressure or damage to the surface of the workpiece 70.

[0055] In this embodiment, see Figure 1As shown, in order to facilitate the adaptation of the floating clamping mechanism 30 to the workpiece 70, the support 20 includes a third support plate 22 and a fourth support plate 23. The third support plate 22 is fixed on the second support plate 12, and the fourth support plate 23 is arranged above the third support plate 22 along the first direction D1. There is a preset distance between the third support plate 22 and the fourth support plate 23. The floating clamping mechanism 30 is arranged on the fourth support plate 23, so as to raise the floating clamping mechanism 30 to a certain height.

[0056] See also Figure 1 -2 and Figure 4 As shown in FIG. 5 , the rotary clamping mechanism 40 is disposed on the side of the first support 20 away from the second support 20, and the rotary clamping mechanism 40 is used to laterally fix the overhanging mechanism 701. By pressing from the side of the overhanging mechanism 701, pressure can be applied to the workpiece 70 in multiple directions, so that the workpiece 70 is more firmly fixed on the base 10 during processing or other operations, preventing the workpiece 70 from lateral displacement, achieving multi-directional fixation of the workpiece 70, and further improving the fixation effect of the workpiece 70.

[0057] In this embodiment, see Figure 6 As shown in Figure 8, the floating clamping mechanism 30 includes a floating seat 31 and at least one clamping member 32. A first guide groove 310 is provided at the bottom of the floating seat 31. A first guide protrusion 21 is provided on the side of the support 20 away from the second support plate 12. The first guide groove 310 is slidably matched with the first guide protrusion 21. The clamping member 32 is provided on the side of the floating seat 31 facing the cantilever mechanism 701. The clamping member 32 can move along a second preset path on the floating seat 31. In the embodiment provided in the present application, the first guide protrusion 21 is arranged on the fourth support plate 23 along the second direction D2. The first guide protrusion 21 can be a guide key. The first guide groove 310 slides with the first guide protrusion 21 to provide precise guidance and positioning for the floating seat 31, so that it moves along the first preset path, thereby ensuring the accuracy of the movement of the floating clamping mechanism 30. At the same time, this sliding fit also allows the floating seat 31 to float within a certain range, and can adapt to the position and shape changes of the workpiece 70, thereby avoiding the situation where the clamping is not tight or the workpiece 70 is damaged due to size deviation or inaccurate position of the workpiece 70, thereby improving the versatility and adaptability of the clamping mechanism.

[0058] See also Figure 7 As shown in FIG. 9 , in the embodiment provided in the present application, second waist holes 312 are respectively provided on both sides of the first guide groove 310, and a plurality of first screw holes 230 are provided on the fourth support plate 23. When the floating seat 31 is moved to a suitable position, bolts or screws are passed through the second waist holes 312 and the first screw holes 230, so as to fix the floating seat 31 and the fourth support plate 23.

[0059] Multiple clamping members 32 may be provided to increase the contact with the mating portion 702 at the end of the overhanging mechanism 701, thereby increasing the clamping stability. In this application, since there are multiple mating portions 702 on the overhanging mechanism 701 of the speed reducer housing, two clamping members 32 are provided, and the two clamping members 32 are symmetrically arranged up and down along the first direction D1 and respectively form a fit with the mating portion 702. To fix the two clamping members 32, the floating seat 31 is provided with a fifth support plate 313 parallel to the floating seat 31 along the first direction D1, and the other clamping member 32 is arranged on the fifth support plate 313.

[0060] See Figure 8 As shown in Fig. -12, a second guide groove 320 is formed at the bottom of the clamping member 32, and a second guide protrusion 311 protrudes from the floating seat 31. The second guide groove 320 is in sliding fit with the second guide protrusion 311. One side of the clamping member 32 facing the mating portion 702 has symmetric extension portions 321. A preset distance is provided between the two extension portions 321. A locking member 33 is arranged on the extension portion 321. When the floating clamping mechanism 30 approaches the overhanging mechanism 701, the mating portion 702 is placed between the two extension portions 321, and the locking member 33 is used to lock or unlock the mating portion 702. During the process that the floating clamping mechanism 30 approaches the workpiece 70, the second guide groove 320 is in sliding fit with the second guide protrusion 311, enabling the clamping member 32 to move along a second preset path and accurately reach the preset position of the overhanging mechanism 701, improving the positioning accuracy. A preset distance is provided between the two extension portions 321, which can widely adapt to workpieces 70 of various specifications, greatly enhancing the versatility of the floating clamping mechanism 30. The second preset path is parallel to the third direction D3. By moving the clamping member 32 in the third direction D3, its position corresponds to that of the mating portion 702. The third direction D3 is perpendicular to the second direction D2.

[0061] In the embodiment provided in this application, see Figure 8 As shown in Fig. -10, third waist-shaped holes 322 are respectively formed on both sides of the second guide groove 320, and second screw holes 314 are formed on both sides of the second guide protrusion 311. After the clamping member 32 moves to a suitable position, bolts or screws etc. penetrate through the third waist-shaped holes 322 and the second screw holes 314, thereby fixing the clamping member 32 to the floating seat 31. In addition, for the convenience of machining, the second guide protrusion 311 on the floating seat 31 is set as a guide pin, and the second guide protrusion 311 on the fifth support plate 313 is set as a guide key.

[0062] See Figure 10As shown in FIG. -11, the locking member 33 includes a first fixing member 330 and a first protrusion 331. The first fixing member 330 penetrates through one of the extending portions 321, and the first protrusion 331 is disposed on the side of the other extending portion 321 facing the first fixing member 330. The first fixing member 330 can be fixed by a bolt or a stud cooperating with a nut. When the overhanging mechanism 701 extends between the two extending portions 321, by adjusting the positions of the clamping member 32 and the floating seat 31, the mating portion 702 first abuts against the first protrusion 331, and then the first fixing member 330 is screwed, so that the clamping member 32 and the mating portion 702 are rigidly fixed together, and the pre-tightening force is not less than 100 N.

[0063] In the present application, as shown in Figure 13 FIG. -14, the rotary clamping mechanism 40 is adapted to the upper surface of the workpiece 70. The first end of the rotary clamping mechanism 40 is disposed on the first support plate 11 through a second fixing member 41. The rotary clamping mechanism 40 can rotate circumferentially along the axis of the second fixing member 41. The second end of the rotary clamping mechanism 40 extends to the support 20 and is connected to a first mating mechanism 50 disposed on the support 20. At least one third fixing member 42 is disposed in the middle of the rotary clamping mechanism 40. The shape of the rotary clamping mechanism 40 is adapted to the shape of the upper surface of the workpiece 70, which can better fit the workpiece 70 and increase the contact area with the workpiece 70. When applied to other boxes, the shape of the rotary clamping mechanism 40 can also be adjusted correspondingly. The second end of the rotary clamping mechanism 40 extends to the support 20 and is connected to the first mating mechanism 50 disposed on the support 20. This structure fixed at both ends enhances the stability of the rotary clamping mechanism 40. When clamping the workpiece 70 and performing various operations, it can withstand greater external forces and torques, reducing the deformation and vibration of the mechanism. In the embodiment provided in the present application, the second fixing member 41 and the third fixing member 42 are respectively bolts or studs and cooperate with nuts. A plurality of third fixing members 42 are provided and are arranged along the first direction D1 and the third direction D3 respectively, so that the workpiece 70 can be laterally fixed at multiple places, increasing the clamping stability.

[0064] In a feasible implementation manner, as shown in Figure 13As shown in FIG. 14, the first matching mechanism 50 includes a first fixing seat 51 and a fourth fixing member 52. The fourth fixing member 52 is arranged on the first fixing seat 51. A groove 43 is provided on the side of the second end of the rotary clamping mechanism 40 facing the fourth fixing member 52. When the rotary clamping mechanism 40 rotates to the first matching mechanism 50, the inner wall surface of the groove 43 abuts against the fourth fixing member 52. The abutment between the fourth fixing member 52 and the inner wall surface of the groove 43 limits the further rotation or shaking of the rotary clamping mechanism 40 at this position, increases the stability of the entire mechanism in the working state, and ensures that each time the rotary clamping mechanism 40 rotates into place, its position has a high degree of repeatability and accuracy, providing a reliable position reference for subsequent precise processing or operation of the workpiece 70. The fourth fixing member 52 can be a stud or a bolt, and cooperates with a nut to achieve locking or unlocking of the second end of the rotary clamping mechanism 40.

[0065] In this embodiment, see Figure 1 -5 and Figure 15 As shown, the support 20 is also provided with a second matching mechanism 60, and the second matching mechanism 60 includes a pressing member 61 and a supporting member 62, the supporting member 62 is arranged on a side close to the second support plate 12, and the pressing member 61 is arranged on a side away from the second support plate 12, and the pressing member 61 can move along the third preset path, and when the pressing member 61 moves to the end of the third preset path, the pressing member 61 and the supporting member 62 are arranged opposite to each other. In the embodiment provided by the present application, the supporting member 62 can be a supporting rod, which is arranged on the third support plate 22, and the pressing member 61 is arranged on the fourth support plate 23, and the supporting member 62 and the pressing member 61 cooperate with each other to act on the surface of the overhanging mechanism 701 to fix it, and the pressing member 61 can move along the third preset path, so as to move the pressing member 61 to avoid the workpiece 70 when the workpiece 70 enters the base 10, and when the workpiece 70 is arranged, the pressing member 61 cooperates with the supporting member 62 to fix the workpiece 70.

[0066] See also Figure 15As shown, in a feasible embodiment, the pressing member 61 includes a second fixing base 610, a pressing plate 611, a fifth fixing member 612, and a ejector rod 613. The second fixing base 610 is disposed on one side of the floating clamping mechanism 30. Both the fifth fixing member 612 and the ejector rod 613 are disposed on the second fixing base 610. A first waist-shaped hole 6110 is formed in the pressing plate 611, and the first waist-shaped hole 6110 penetrates through the fifth fixing member 612. The pressing plate 611 is movable on the fifth fixing member 612, and one end of the pressing plate 611 abuts against the ejector rod 613. In the embodiment provided by the present application, the second fixing base 610 is disposed on the fourth support plate 23. The pressing plate 611 slides on the fifth fixing member 612 along the length direction of the first waist-shaped hole 6110. The fifth fixing member 612 may be a screw or a stud and cooperate with a nut to fix the pressing plate 611. The ejector rod 613 is used to provide a reverse force for pressing the workpiece 70 by the pressing plate 611.

[0067] In this embodiment, referring to Figure 1 As shown, a first mounting hole 110 is formed in the first support plate 11. A plurality of sixth fixing members 111 are uniformly arranged in the circumferential direction of the first mounting hole 110. One end of the connecting flange 700 extends into the first mounting hole 110, and the sixth fixing member 111 is fixed along the circumferential direction of the connecting flange 700. The sixth fixing member 111 may be a positioning pin and a pressing block or other structures. The connecting flange 700 of the speed reducer housing and the first support plate 11 are fixed by the positioning pin and the pressing block. In addition, a support assembly for supporting the lower surface of the workpiece 70 is further disposed on the third support plate 22. The fixing of the connecting flange 700 and the support assembly are both prior arts and are not limited herein.

[0068] The present invention also provides a clamping method, which uses the above-mentioned fixture with a flexible floating clamp for clamping, and includes the following steps:

[0069] When loading the workpiece, move the floating clamping mechanism 30 to the starting end of the first preset path, move the rotary clamping mechanism 40 to the outside of the base 10, and place the workpiece 70 in the base 10. In this embodiment, by adjusting the second fixing member 41 and the fourth fixing member 52, rotate the rotary clamping mechanism 40 to the outside, and move the floating clamping mechanism 30 to the initial position of the first preset path, the purpose is to avoid interference for the workpiece 70 to enter the mold.

[0070] Fix the connecting flange 700 to the first support plate 11, and the overhanging mechanism 701 is located within the projection area of the second support plate 12. In this embodiment, first manually lift and position the box body with one surface and two pins, and then circumferentially fix the connecting flange 700 through the sixth fixing member 111.

[0071] A first mating mechanism 50 and a second mating mechanism 60 are respectively arranged on both sides of the floating clamping mechanism 30, and the upper and lower sides of the end of the overhanging mechanism 701 are pressed by the second mating mechanism 60; in this embodiment, the fifth fixing member 612 is adjusted to press the pressing plate 611 against the upper end surface of the overhanging mechanism 701, so that it cooperates with the support member 62 pressing against the lower end surface of the overhanging mechanism 701 for fixation, and the overhanging mechanism 701 is preliminarily fixed through the cooperation of the pressing plate 611 and the support member 62;

[0072] A clamping member 32 is arranged on the floating clamping mechanism 30, and the floating clamping mechanism 30 is moved towards the end of the first preset path. When the overhanging mechanism 701 is placed inside the floating clamping mechanism 30, first fix the floating clamping mechanism 30, and then adjust the clamping member 32 to clamp the mating portion 702 located at the end of the overhanging mechanism 701; in this embodiment, the floating seat 31 is pushed to move along the first preset path, and when adjusted to the appropriate position, the floating seat 31 is fixed to the support 20; the purpose is to perform primary floating locking on the workpiece 70, so that the floating clamping mechanism 30 and the support 20 are fixed as a whole; then adjust the second guiding groove 320 and the second guiding protrusion 311 to make the clamping member 32 abut against the mating portion 702. In this step, first make the first protrusion 331 abut against one side of the mating portion 702, tighten the first fixing member 330 to make it press against the other side of the mating portion 702, and when adjusted to the appropriate position, fix the clamping member 32 to the floating seat 31. Manually adjust the two clamping blocks along the direction of the second guiding groove 320 in sequence, and the purpose is to perform secondary floating locking on the workpiece 70, so that the clamping member 32 and the workpiece 70 are rigidly fixed as a whole; manually tighten the first fixing member 330 to perform tertiary floating locking, and the purpose is to fix the clamping member 32 to the floating seat 31 as a whole;

[0073] The rotary clamping mechanism 40 is moved, and the movable end of the rotary clamping mechanism 40 is fixed to the first mating mechanism 50; in this embodiment, the rotary clamping mechanism 40 is rotated. When the inner wall surface of the groove 43 abuts against the fourth fixing member 52, first lock the fourth fixing member 52 and the second end of the rotary clamping mechanism 40, and then lock the second fixing member 41 to fix the rotary clamping mechanism 40 to the first support plate 11;

[0074] The rotary clamping mechanism 40 is fixed to the side of the overhanging mechanism 701. In this embodiment, the third fixing member 42 is adjusted to be fixed to the side of the overhanging mechanism 701. Fixing the workpiece 70 from the side through the third fixing member 42 can realize multi-directional constraint on the workpiece 70, support the outer shape of the box body conformally, and can enhance the overall rigidity of the equipment.

[0075] When feeding, all actions are completely opposite to the feeding sequence.

[0076] The structure, features, and effects of the present invention have been described in detail based on the embodiments shown in the drawings. The above is only the preferred embodiment of the present invention, but the present invention is not limited to the scope of implementation shown in the drawings. Any changes made in accordance with the concept of the present invention, or equivalent embodiments modified into equivalent changes, should still be within the protection scope of the present invention as long as they do not exceed the spirit covered by the specification and the drawings.

Claims

1. A clamp with a flexible floating clamp, characterized in that: include: The base comprises a first support plate and a second support plate which are perpendicular to each other, wherein the first support plate is used to fix a connecting flange of a workpiece, and a support is arranged on the second support plate; A floating clamping mechanism is provided on a side of the support away from the first support plate, the floating clamping mechanism is used to fix the overhanging mechanism of the workpiece, and the floating clamping mechanism moves along a first preset path on the support to move away from or close to the overhanging mechanism; The rotary clamping mechanism is arranged on a side of the first supporting plate away from the second supporting plate, and the rotary clamping mechanism is used to laterally fix the overhanging mechanism.

2. The clamp with flexible floating clamp according to claim 1, characterized in that: The floating clamping mechanism includes a floating seat and at least one clamping member, a first guide groove is provided at the bottom of the floating seat, a first guide protrusion is provided on the side of the support away from the second support plate, the first guide groove and the first guide protrusion are slidably matched, the clamping member is provided on the side of the floating seat facing the cantilever mechanism, and the clamping member can move along a second preset path on the floating seat.

3. The clamp with flexible floating clamp according to claim 2, characterized in that: A second guide groove is provided at the bottom of the clamping member, and a second guide protrusion is provided on the floating seat. The second guide groove and the second guide protrusion are slidably matched. The side of the clamping member facing the cantilever mechanism has symmetrical extension parts, and there is a preset distance between the two extension parts. A locking member is provided on the extension part. When the floating clamping mechanism approaches the workpiece, the matching part at the end of the cantilever mechanism is placed between the two extension parts, and the locking member is used to lock or unlock the matching part.

4. The clamp with flexible floating clamp according to claim 3, characterized in that: The locking member includes a first fixing member and a first protrusion, wherein the first fixing member passes through one of the extending portions, and the first protrusion is arranged on a side of the other extending portion facing the first fixing member.

5. The clamp with flexible floating clamp according to claim 1, characterized in that: The rotary clamping mechanism is adapted to the upper surface of the workpiece, the first end of the rotary clamping mechanism is arranged on the first support plate through the second fixing member, the rotary clamping mechanism can rotate circumferentially along the axis of the second fixing member, the second end of the rotary clamping mechanism extends to the support and is connected to the first matching mechanism arranged on the support, and at least one third fixing member is arranged in the middle of the rotary clamping mechanism.

6. The clamp with flexible floating clamp according to claim 5, characterized in that: The first matching mechanism includes a first fixed seat and a fourth fixed member, the fourth fixed member is arranged on the first fixed seat, and a groove is provided on the side of the second end of the rotating clamping mechanism facing the fourth fixed member. When the rotating clamping mechanism rotates to the first matching mechanism, the inner wall surface of the groove abuts against the fourth fixed member.

7. The clamp with flexible floating clamp according to claim 1, characterized in that: A second matching mechanism is also provided on the support, and the second matching mechanism includes a pressing member and a supporting member, the supporting member is arranged on a side close to the second support plate, and the pressing member is arranged on a side away from the second support plate. The pressing member can move along a third preset path, and when the pressing member moves to the end of the third preset path, the pressing member and the supporting member are arranged opposite to each other.

8. The clamp with flexible floating clamp according to claim 7, characterized in that: The pressing member includes a second fixing seat, a pressing plate, a fifth fixing member and a push rod. The second fixing seat is arranged on one side of the floating clamping mechanism. The fifth fixing member and the push rod are both arranged on the second fixing seat. A first waist hole is opened on the pressing plate. The first waist hole passes through the fifth fixing member. The pressing plate can move on the fifth fixing member, and one end of the pressing plate abuts against the push rod.

9. The clamp with flexible floating clamp according to claim 1, characterized in that: The first support plate is provided with a first mounting hole, a plurality of sixth fixing members are evenly arranged around the circumference of the first mounting hole, one end of the connecting flange extends into the first mounting hole, and the sixth fixing members are fixed along the circumference of the connecting flange.

10. A clamping method, characterized in that: The clamping is performed using a clamp with a flexible floating clamp as described in any one of claims 1 to 9, comprising the following steps: When loading the workpiece, the floating clamping mechanism is moved to the beginning of the first preset path, the rotary clamping mechanism is moved to the outside of the base, and the workpiece is placed in the base; The connecting flange is fixed to the first support plate, and the overhanging mechanism is located within the projection area of ​​the second support plate; A first matching mechanism and a second matching mechanism are respectively provided on both sides of the floating clamping mechanism, and the upper and lower sides of the end of the overhanging mechanism are pressed by the second matching mechanism; A clamping member is provided on the floating clamping mechanism, and the floating clamping mechanism is moved to the end of the first preset path. When the overhanging mechanism is placed in the floating clamping mechanism, the floating clamping mechanism is first fixed, and then the clamping member is adjusted to clamp the matching portion at the end of the overhanging mechanism. Move the rotary clamping mechanism, fix the movable end of the rotary clamping mechanism to the first matching mechanism; and fix the rotary clamping mechanism to the side of the overhanging mechanism.

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