Turnover clamp tool applied to sawing machine

Abstract

The utility model discloses a turnover clamp tool applied to a sawing machine, which relates to the technical field of metal processing and comprises a support frame, a moving mechanism is arranged at the top of the support frame, and a mounting mechanism is arranged at the top of the moving mechanism. The clamping mechanism comprises a first bearing seat, a second bearing seat, a fixed seat connected with the mounting mechanism, a third mounting plate and a fourth mounting plate, a first oil cylinder is hinged to one side of the fixed seat, a movable block is hinged to the output end of the first oil cylinder, and a first rotating shaft is fixedly arranged on one side of the movable block; one end of the first rotating shaft penetrates through the first bearing seat and is fixedly provided with a first connecting block, and one side of the first connecting block is fixedly provided with a first mounting plate; by arranging the clamping mechanism, the clamping mechanism can continuously conduct clamping work when overturning is needed after clamping is completed, angle adjustment is conducted in the overturning process, manual overturning is not needed when multi-face cutting is needed, and cutting work is more time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a reversible clamp tooling used for a sawing machine. Background Art

[0002] Band saws are machine tools used for sawing various metal materials. They are divided into horizontal and vertical types according to their structure; they are divided into semi-automatic, fully automatic, and CNC types according to their functions. The horizontal type can be divided into double-column and scissor-type. When a band saw is used to cut aluminum profiles, it is generally necessary to use a fixture to clamp the aluminum profile before cutting and sawing the aluminum profile.

[0003] When the current vertical sawing machine is performing cutting work, the clamping tool used can only perform conventional clamping. The angle cannot be changed during the clamping process, and multi-directional cutting work is not convenient to adjust when multi-faceted cutting work is required. It is necessary to cancel the clamping effect and manually flip it before cutting, which is time-consuming and laborious. In view of the above problems, the inventor proposes a reversible clamping tool used in a sawing machine to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the current vertical sawing machine, when performing cutting work, the clamping tooling used can only perform conventional clamping, cannot perform angle change during the clamping process, and is not convenient for multi-directional cutting work. When multi-faceted cutting work is required, it is inconvenient to adjust, and it is necessary to cancel the clamping effect and manually flip it before cutting, which is time-consuming and laborious; the purpose of the utility model is to provide a reversible clamping tooling for a sawing machine.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a reversible clamp tooling used for a sawing machine, comprising a support frame, a moving mechanism is provided on the top of the support frame, a mounting mechanism is provided on the top of the moving mechanism, and a clamping mechanism is provided on the top of the mounting mechanism: the clamping mechanism comprises a first bearing seat, a second bearing seat, a fixed seat connected to the mounting mechanism, a third mounting plate, and a fourth mounting plate, a first oil cylinder is hingedly provided on one side of the fixed seat, a movable block is hingedly provided on the output end of the first oil cylinder, a first rotating shaft is fixedly provided on one side of the movable block, one end of the first rotating shaft passes through the first bearing seat and is fixedly provided with a first connecting block, a first connecting block is fixedly provided on one side of the first connecting block, and second mounting plates are symmetrically fixedly provided on both sides of the top of the first mounting plate. The second mounting plate has two ends at the top thereof fixedly matched with the third mounting plate and one side of the bottom of the fourth mounting plate respectively; a second connecting block is fixedly provided at one end of the first mounting plate; a second rotating shaft is fixedly provided at one side of the second connecting block; one end of the second rotating shaft is rotatably matched with a second bearing seat connected to the mounting mechanism; second oil cylinders are symmetrically fixedly provided at two ends of the bottom of the third mounting plate; a first lifting plate is fixedly provided at the output end of the second oil cylinder through the third mounting plate; a first cylindrical rod is symmetrically fixedly provided at two ends of the top of the first lifting plate; a third oil cylinder is fixedly provided at one side of the top of the third mounting plate; a first clamping block is hingedly provided at the output end of the third oil cylinder; and two symmetrical hinged devices connected to the first fixing block are provided at both sides of the first clamping block. A first movable bar is hinged on one side, and a first fixed plate is fixedly provided on the other side of the top of the third mounting plate. Fourth oil cylinders are symmetrically fixedly provided at both ends of the top of the first fixing plate, and a first fixed bar is fixedly provided at the output end of the fourth oil cylinder. A second fixed block is fixedly provided on the top of the fourth oil cylinder. Second movable bars are symmetrically hinged on one end of both sides of the first fixing bar, and a third movable bar hingedly provided on one side of the second fixing block. A second clamping block is hingedly provided between the two third movable bars, and fourth movable bars hingedly provided on one side of the second clamping block at the other end of both sides of the first fixing bar. Fifth oil cylinders are symmetrically fixedly provided at both ends of the bottom of the fourth mounting plate, and the output end of the fifth oil cylinder passes through the fourth mounting plate fixed device A second lifting plate is provided, and second cylindrical rods are symmetrically fixed at both ends of the top of the second lifting plate, a sixth oil cylinder is fixedly provided on one side of the top of the fourth mounting plate, a third clamping block is hingedly provided on the output end of the sixth oil cylinder, a third fixing block is fixedly provided on the top of the sixth oil cylinder, and fifth movable bars hingedly matched with one side of the third fixing block are symmetrically hingedly provided on both sides of the third clamping block, a second fixing plate is fixedly provided on the other side of the top of the fourth mounting plate, a third fixing plate is fixedly provided on the top of the second fixing plate through a plurality of supporting blocks, a seventh oil cylinder is symmetrically fixedly provided at both ends of the top of the third fixing plate, a second fixing bar is fixedly provided on the output end of the seventh oil cylinder, a fourth fixing block is fixedly provided on the top of the seventh oil cylinder, and sixth movable bars are symmetrically hingedly provided on one end of both sides of the second fixing bar,One side of the sixth movable bar is hinged with a seventh movable bar hinged with one side of the fourth fixed block, a fourth clamping block is hinged between the two seventh movable bars, and the other ends of the two sides of the second fixed bar are symmetrically hinged with eighth movable bars hinged with both sides of the fourth clamping block. The top outer ring of the first lifting plate is fixed with a first stopper through the first mounting block, and the top outer ring of the second lifting plate is fixed with a second stopper through the second mounting block. The top inner rings of the first lifting plate and the second lifting plate are both fixed with third stops through two third mounting blocks. The top centers of the first lifting plate and the second lifting plate are provided with a plurality of through holes, and the top centers of the third mounting plate and the fourth mounting plate are both fixed with a plurality of support bars interlaced with the through holes. The bottom corners of the first lifting plate and the second lifting plate are both fixed with guide rods, and the bottom corners of the third mounting plate and the fourth mounting plate are both provided with through holes, and the through holes are fixed with sliding sleeves slidably matched with the guide rods.

[0006] Preferably, the moving mechanism includes a first mounting seat and a second mounting seat fixedly provided at both ends of the top of the support frame, a motor is fixedly installed on one side of the first mounting seat, and a screw is fixedly provided on the output end of the motor through the first mounting seat and is rotatably matched with one side of the second mounting seat, and a moving block connected to the mounting mechanism is threaded on the surface of the screw.

[0007] Preferably, the mounting mechanism includes slide rails symmetrically fixed on both sides of the top of the support frame, a first cross plate fixedly matched with the fixed seat, the first bearing seat and the second bearing seat, a plurality of second cross plates fixedly provided at the bottom of the first cross plate through a plurality of support tubes, one of the second cross plates is fixedly matched with the top of the moving block at the bottom, two cross blocks are symmetrically fixed at both ends of the bottom of the second cross plate, and a slider slidably matched with the slide rails is fixedly provided at the bottom of the cross block.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. The utility model sets a clamping mechanism so that the clamping mechanism can continue to clamp when it needs to be flipped after clamping, and adjust the angle during the flipping process. When multi-faceted cutting is required, manual flipping is not required, making the cutting work more time-saving and labor-saving;

[0010] 2. The utility model utilizes the movement of the first lifting plate to drive the movement of the first cylindrical rod. The staff places the aluminum profile to be cut and sawed on the two first cylindrical rods, and starts the third oil cylinder again to shorten it, driving the aluminum profile to descend, and starts the third oil cylinder to extend it, driving the end of the first clamping block to approach the aluminum profile to clamp the aluminum profile, and starts the fourth oil cylinder to extend it, driving the end of the second clamping block to approach the aluminum profile to clamp the aluminum profile, so that the first clamping block and the second clamping block can complete the clamping of the aluminum profile, and starts the first oil cylinder to shorten it, driving the movable block to rotate with the first rotating shaft as the axis, and then driving the first rotating shaft to rotate, and then driving the first connecting block, the first mounting plate, the second mounting plate, the third mounting plate and the fourth mounting plate to rotate with the first rotating shaft as the axis, thereby realizing the flipping of the aluminum profile. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall external structure of the utility model.

[0013] Figure 2 This is a schematic structural diagram of the clamping mechanism of the utility model from the first viewing angle.

[0014] Figure 3 This is a schematic structural diagram of the clamping mechanism of the utility model from a second viewing angle.

[0015] Figure 4 This is a schematic structural diagram of the clamping mechanism of the utility model from the third viewing angle.

[0016] Figure 5 It is a schematic diagram of the structure of the mobile mechanism of the utility model.

[0017] Figure 6 It is a schematic diagram of the installation mechanism structure of the utility model.

[0018] In the figure: 1, support frame; 2, moving mechanism; 201, first mounting seat; 202, second mounting seat; 203, motor; 204, screw; 205, moving block; 3, mounting mechanism; 301, first horizontal plate; 302, support tube; 303, second horizontal plate; 304, horizontal block; 305, slide rail; 306, slider; 4, clamping mechanism; 401, fixed seat; 402, first oil cylinder; 403, movable block; 404, first rotating shaft; 405, first bearing seat; 406, first connecting block; 407, first mounting plate; 408, second mounting plate; 409, third mounting plate; 410 , the fourth mounting plate; 411, the second oil cylinder; 412, the first lifting plate; 413, the first cylindrical rod; 414, the third oil cylinder; 415, the first clamping block; 416, the first fixed block; 417, the first movable bar; 418, the first fixed plate; 419, the fourth oil cylinder; 420, the first fixed bar; 421, the second movable bar; 422, the third movable bar; 423, the second clamping block; 424, the fourth movable bar; 425, the second lifting plate; 426, the third clamping block; 427, the fourth clamping block; 428, the first stopper; 429, the third stopper; 430, the support bar; 431, the guide rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-6As shown, the utility model provides a reversible fixture used for a sawing machine, including a support frame 1, a moving mechanism 2 is provided on the top of the support frame 1, a mounting mechanism 3 is provided on the top of the moving mechanism 2, and a clamping mechanism 4 is provided on the top of the mounting mechanism 3: the clamping mechanism 4 includes a first bearing seat 405, a second bearing seat, a fixed seat 401 connected to the mounting mechanism 3, a third mounting plate 409, and a fourth mounting plate 410, a first oil cylinder 402 is hingedly provided on one side of the fixed seat 401, a movable block 403 is hingedly provided on the output end of the first oil cylinder 402, and a first fixedly provided on one side of the movable block 403 The rotating shaft 404, one end of the first rotating shaft 404 passes through the first bearing seat 405 and is fixed with a first connecting block 406, one side of the first connecting block 406 is fixed with a first mounting plate 407, the top of the first mounting plate 407 is symmetrically fixed with second mounting plates 408 on both sides, the two ends of the top of the second mounting plate 408 are respectively fixedly matched with the third mounting plate 409 and the bottom side of the fourth mounting plate 410, one end of the first mounting plate 407 is fixedly matched with a second connecting block, one side of the second connecting block is fixedly provided with a second rotating shaft, and one end of the second rotating shaft is rotatably matched with the second bearing seat connected to the mounting mechanism 3.

[0021] The second oil cylinder 411 is symmetrically fixed at both ends of the bottom of the third mounting plate 409, the output end of the second oil cylinder 411 passes through the third mounting plate 409 and is fixed with a first lifting plate 412, the top ends of the first lifting plate 412 are symmetrically fixed with first cylindrical rods 413, a third oil cylinder 414 is fixed on one side of the top of the third mounting plate 409, the output end of the third oil cylinder 414 is hinged with a first clamping block 415, the top of the third oil cylinder 414 is fixed with a first fixed block 416, the first clamping block 415 is symmetrically hinged on both sides with a first movable bar 417 hingedly matched with one side of the first fixed block 416, and the other side of the top of the third mounting plate 409 is fixed A first fixed plate 418 is provided, and fourth cylinders 419 are symmetrically fixed at both ends of the top of the first fixed plate 418, a first fixed bar 420 is fixed at the output end of the fourth oil cylinder 419, and a second fixed block is fixed at the top of the fourth oil cylinder 419, second movable bars 421 are symmetrically hinged at one end of both sides of the first fixed bar 420, a third movable bar 422 is hinged on one side of the second movable bar 421 and is hinged to cooperate with one side of the second fixed block, a second clamping block 423 is hinged between the two third movable bars 422, and fourth movable bars 424 are symmetrically hinged at the other end of both sides of the first fixed bar 420 and are hinged to cooperate with one side of the second clamping block 423.

[0022] By adopting the above technical solution, the third oil cylinder 414 and the fourth oil cylinder 419 can be started to drive the first clamping block 415 and the second clamping block 423 to move respectively.

[0023] A fifth oil cylinder is symmetrically fixed at both ends of the bottom of the fourth mounting plate 410, a second lifting plate 425 is fixedly provided at the output end of the fifth oil cylinder through the fourth mounting plate 410, a second cylindrical rod is symmetrically fixedly provided at both ends of the top of the second lifting plate 425, a sixth oil cylinder is fixedly provided on one side of the top of the fourth mounting plate 410, a third clamping block 426 is hingedly provided at the output end of the sixth oil cylinder, a third fixing block is fixedly provided on the top of the sixth oil cylinder, a fifth movable bar hingedly provided on both sides of the third clamping block 426 is symmetrically hingedly provided with a third fixing block, and a second fixing plate is fixedly provided on the other side of the top of the fourth mounting plate 410 A third fixed plate is fixed on the top of the second fixed plate through multiple supporting blocks, a seventh oil cylinder is symmetrically fixed on both ends of the top of the third fixed plate, a second fixed bar is fixed on the output end of the seventh oil cylinder, a fourth fixed block is fixed on the top of the seventh oil cylinder, a sixth movable bar is symmetrically hinged on one end of both sides of the second fixed bar, a seventh movable bar is hinged on one side of the sixth movable bar and is hinged to cooperate with one side of the fourth fixed block, a fourth clamping block 427 is hinged between the two seventh movable bars, and an eighth movable bar is symmetrically hinged on the other end of both sides of the second fixed bar and is hinged to cooperate with both sides of the fourth clamping block 427.

[0024] By adopting the above technical solution, the activation of the sixth oil cylinder and the seventh oil cylinder can respectively drive the third clamping block 426 and the fourth clamping block 427 to move.

[0025] The top outer ring of the first lifting plate 412 is fixed with a first stopper 428 via a first mounting block, the top outer ring of the second lifting plate 425 is fixed with a second stopper via a second mounting block, and the top inner rings of the first lifting plate 412 and the second lifting plate 425 are fixed with a third stopper 429 via two third mounting blocks.

[0026] By adopting the above technical solution, the first stopper 428, the second stopper and the third stopper 429 can reinforce the aluminum profile.

[0027] The moving mechanism 2 includes a first mounting seat 201 and a second mounting seat 202 fixedly arranged at both ends of the top of the support frame 1. A motor 203 is fixedly installed on one side of the first mounting seat 201. The output end of the motor 203 passes through the first mounting seat 201 and is fixedly provided with a screw 204 that rotatably cooperates with one side of the second mounting seat 202. The surface of the screw 204 is threadedly provided with a moving block 205 connected to the mounting mechanism 3.

[0028] By adopting the above technical solution, the rotation of the motor 203 can drive the moving block 205 to move along the horizontal direction.

[0029] The mounting mechanism 3 includes slide rails 305 symmetrically fixed on both sides of the top of the support frame 1, a first cross plate 301 fixedly matched with the fixed seat 401, the first bearing seat 405 and the second bearing seat, a plurality of second cross plates 303 are fixedly provided at the bottom of the first cross plate 301 through a plurality of support tubes 302, a bottom of one of the second cross plates 303 is fixedly matched with the top of the moving block 205, two cross blocks 304 are symmetrically fixed at both ends of the bottom of the second cross plate 303, and a slider 306 slidably matched with the slide rail 305 is fixedly provided at the bottom of the cross block 304.

[0030] By adopting the above technical solution, the slider 306 can slide along the surface of the slide rail 305 .

[0031] A plurality of through holes are provided at the top center of the first lifting plate 412 and the second lifting plate 425 , and a plurality of support bars 430 interlaced and matched with the through holes are fixedly provided at the top center of the third mounting plate 409 and the fourth mounting plate 410 .

[0032] By adopting the above technical solution, the support bar 430 can support the aluminum profile.

[0033] The first lifting plate 412 and the second lifting plate 425 are both fixed with guide rods 431 at their bottom corners, and the third mounting plate 409 and the fourth mounting plate 410 are both opened with through holes at their bottom corners, and the through holes are fixed with sliding sleeves that slidably cooperate with the guide rods 431.

[0034] By adopting the above technical solution, the guide rod 431 slides along the sliding sleeve, which can improve the structural stability of the first lifting plate 412 and the second lifting plate 425 when they move.

[0035] Working principle: Aluminum profiles of different shapes can be clamped between the first clamping block 415 and the two second clamping blocks 423 disposed opposite to the first lifting plate 412 and between the third clamping block 426 and the two fourth clamping blocks 427 disposed opposite to the second lifting plate 425, and the clamping principle is the same;

[0036] When it is necessary to cut and saw the aluminum profile, the third oil cylinder 414 is started to extend it, driving the first lifting plate 412 to move upward, and then driving the first cylindrical rod 413 to move upward until the first lifting plate 412 moves to above the first clamping block 415 and the two second clamping blocks 423. The staff will place the aluminum profile to be cut and sawed on the two first cylindrical rods 413, and start the third oil cylinder 414 again to shorten it, driving the first lifting plate 412, the first cylindrical rod 413 and the aluminum profile to descend until the aluminum profile moves to the position where the bottom of the aluminum profile contacts the top of the support bar 430, and start the third oil cylinder 414 to extend it, driving the first clamping block 415 and the first movable bar 417 to rotate within a certain range, and the end of the first clamping block 415 approaches the aluminum profile to the aluminum profile. The aluminum profile is clamped, the fourth oil cylinder 419 is started to extend, and the first fixed bar 420 is driven to move upward, thereby driving the second movable bar 421, the third movable bar 422, the fourth movable bar 424 and the second clamping block 423 to rotate within a certain range, and the end of the second clamping block 423 approaches the aluminum profile to clamp the aluminum profile, so that the first clamping block 415 and the second clamping block 423 can complete the clamping of the aluminum profile, and the first oil cylinder 402 is started to shorten, driving the movable block 403 to rotate with the first rotating shaft 404 as the axis, thereby driving the first rotating shaft 404 to rotate, and then driving the first connecting block 406, the first mounting plate 407, the second mounting plate 408, the third mounting plate 409 and the fourth mounting plate 410 to rotate with the first rotating shaft 404 as the axis, thereby realizing the flipping of the aluminum profile;

[0037] Start the motor 203 to rotate, drive the screw 204 to rotate, and then drive the moving block 205 to move away from the motor 203, and then drive the first cross plate 301 to move away from the motor 203, and then drive the aluminum profile to move to the sawing position of the sawing machine for cutting and sawing operations.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A reversible fixture for a sawing machine, comprising a support frame (1), characterized in that: The support frame (1) is provided with a moving mechanism (2) on the top, the moving mechanism (2) is provided with a mounting mechanism (3) on the top, and the mounting mechanism (3) is provided with a clamping mechanism (4) on the top: The clamping mechanism (4) comprises a first bearing seat (405), a second bearing seat, a fixed seat (401) connected to the mounting mechanism (3), a third mounting plate (409), and a fourth mounting plate (410); a first oil cylinder (402) is hingedly provided on one side of the fixed seat (401); a movable block (403) is hingedly provided on the output end of the first oil cylinder (402); a first rotating shaft (404) is fixedly provided on one side of the movable block (403); one end of the first rotating shaft (404) passes through the first bearing seat (405) and is fixedly provided with a first connecting block (410); 06), a first mounting plate (407) is fixedly provided on one side of the first connecting block (406), second mounting plates (408) are symmetrically fixedly provided on both sides of the top of the first mounting plate (407), two ends of the top of the second mounting plate (408) are respectively fixedly matched with one side of the bottom of the third mounting plate (409) and the fourth mounting plate (410), a second connecting block is fixedly provided on one end of the first mounting plate (407), a second rotating shaft is fixedly provided on one side of the second connecting block, and one end of the second rotating shaft is rotatably matched with a second bearing seat connected to the mounting mechanism (3).

2. A reversible fixture for sawing machine as claimed in claim 1, characterized in that: The second oil cylinder (411) is symmetrically fixed at both ends of the bottom of the third mounting plate (409); the output end of the second oil cylinder (411) passes through the third mounting plate (409) and is fixed with a first lifting plate (412); the first cylindrical rods (413) are symmetrically fixed at both ends of the top of the first lifting plate (412); a third oil cylinder (414) is fixed at one side of the top of the third mounting plate (409); the output end of the third oil cylinder (414) is hingedly provided with a first clamping block (415); the top of the third oil cylinder (414) is fixedly provided with a first fixing block (416); the first clamping block (415) is symmetrically hingedly provided with a first movable bar (417) hingedly matched with one side of the first fixing block (416); the other end of the top of the third mounting plate (409) is hingedly provided with a first movable bar (417) A first fixed plate (418) is fixed on the side, and fourth cylinders (419) are symmetrically fixed at both ends of the top of the first fixed plate (418), a first fixed bar (420) is fixed on the output end of the fourth oil cylinder (419), and a second fixed block is fixed on the top of the fourth oil cylinder (419), and second movable bars (421) are symmetrically hinged on one end of both sides of the first fixed bar (420), and a third movable bar (422) is hinged on one side of the second movable bar (421) and is hinged to cooperate with one side of the second fixed block, and a second clamping block (423) is hinged between the two third movable bars (422), and fourth movable bars (424) are symmetrically hinged on the other end of both sides of the first fixed bar (420) and are hinged to cooperate with one side of the second clamping block (423).

3. A reversible fixture for sawing machine as claimed in claim 2, characterized in that: A fifth oil cylinder is symmetrically fixed at both ends of the bottom of the fourth mounting plate (410); a second lifting plate (425) is fixedly provided at the output end of the fifth oil cylinder through the fourth mounting plate (410); second cylindrical rods are symmetrically fixedly provided at both ends of the top of the second lifting plate (425); a sixth oil cylinder is fixedly provided at one side of the top of the fourth mounting plate (410); a third clamping block (426) is hingedly provided at the output end of the sixth oil cylinder; a third fixing block is fixedly provided at the top of the sixth oil cylinder; fifth movable bars hingedly provided on both sides of the third clamping block (426) and matched with one side of the third fixing block; a fifth oil cylinder is fixedly provided at the other side of the top of the fourth mounting plate (410); There is a second fixed plate, a third fixed plate is fixed on the top of the second fixed plate through a plurality of support blocks, a seventh oil cylinder is symmetrically fixed on both ends of the top of the third fixed plate, a second fixed bar is fixed on the output end of the seventh oil cylinder, a fourth fixed block is fixed on the top of the seventh oil cylinder, a sixth movable bar is symmetrically hinged on one end of both sides of the second fixed bar, a seventh movable bar is hinged on one side of the sixth movable bar and is hinged to cooperate with one side of the fourth fixed block, a fourth clamping block (427) is hinged between the two seventh movable bars, and an eighth movable bar is symmetrically hinged on the other end of both sides of the second fixed bar and is hinged to cooperate with both sides of the fourth clamping block (427).

4. A reversible fixture for sawing machine as claimed in claim 3, characterized in that: The top outer ring of the first lifting plate (412) is fixedly provided with a first stopper (428) via a first mounting block, the top outer ring of the second lifting plate (425) is fixedly provided with a second stopper via a second mounting block, and the top inner rings of both the first lifting plate (412) and the second lifting plate (425) are fixedly provided with a third stopper (429) via two third mounting blocks.

5. The reversible fixture used for sawing machine according to claim 1, characterized in that: The moving mechanism (2) comprises a first mounting seat (201) and a second mounting seat (202) fixedly arranged at two ends of the top of the support frame (1); a motor (203) is fixedly arranged on one side of the first mounting seat (201); a screw rod (204) is fixedly arranged at the output end of the motor (203) through the first mounting seat (201) and is rotatably matched with one side of the second mounting seat (202); a moving block (205) connected to the mounting mechanism (3) is threadedly arranged on the surface of the screw rod (204).

6. A reversible fixture for sawing machine as claimed in claim 5, characterized in that: The mounting mechanism (3) comprises slide rails (305) symmetrically fixed on both sides of the top of the support frame (1), a first transverse plate (301) fixedly matched with a fixed seat (401), a first bearing seat (405) and a second bearing seat, a plurality of second transverse plates (303) fixedly arranged at the bottom of the first transverse plate (301) through a plurality of support tubes (302), a bottom of one of the second transverse plates (303) fixedly matched with the top of the moving block (205), two transverse blocks (304) symmetrically fixedly arranged at both ends of the bottom of the second transverse plate (303), and a sliding block (306) slidably matched with the slide rails (305) fixedly arranged at the bottom of the transverse block (304).

7. The reversible fixture for sawing machine according to claim 3, characterized in that: A plurality of through holes are provided at the top center of the first lifting plate (412) and the second lifting plate (425), and a plurality of support bars (430) interlaced and matched with the through holes are fixedly provided at the top center of the third mounting plate (409) and the fourth mounting plate (410).

8. The reversible fixture used for sawing machine according to claim 3, characterized in that: The first lifting plate (412) and the second lifting plate (425) are both fixedly provided with guide rods (431) at their bottom corners, and the third mounting plate (409) and the fourth mounting plate (410) are both provided with through holes at their bottom corners, and the through holes are fixedly provided with sliding sleeves that slidably cooperate with the guide rods (431).

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