A quick cutting fixture

Abstract

The present invention discloses a quick cutting fixture, including a base, a base plate sliding mechanism is arranged on the base, a workpiece clamping mechanism is arranged on the base plate sliding mechanism, the base plate sliding mechanism includes a first base plate, a linear guide rail A and a linear guide rail B are arranged in parallel on the left and middle parts of the first base plate, the workpiece clamping mechanism includes a second base plate, a side baffle plate is vertically arranged in the middle part of the second base plate, a first lower nylon pad A and a first lower nylon pad B are arranged on the left and middle parts of the second base plate, respectively, and a right side clamping mechanism is arranged on the right side of the second base plate. The present invention has a novel structure and a reasonable design, which greatly saves working time, improves working efficiency, reduces the labor intensity of workers, and the cutting chamfers are of the same size and stable quality, which ensures the quality of subsequent welding, enhances the overall air tightness of the battery box body, and provides a guarantee for mass production with guaranteed quality and quantity.

Description

Technical Field

[0001] The invention relates to the technical field of processing fixtures, in particular to a quick cutting fixture. Background Art

[0002] The global energy and environmental systems are facing huge challenges. As a major consumer of oil and carbon dioxide emissions, automobiles need to undergo revolutionary changes. Therefore, countries around the world have vigorously developed new energy vehicles to save energy and reduce emissions. my country has even included it in the seven strategic emerging industries. The central and local governments at all levels have paid close attention to its development and have successively introduced various support and cultivation policies to create a good policy environment for the development of new energy vehicles.

[0003] As an important carrier for loading batteries in new energy vehicles, the battery box assembly has high requirements for its own mechanical strength (impact resistance, vibration resistance), environmental resistance (paint adhesion resistance, salt spray test resistance, industrial solvent resistance, etc.) and air tightness (water resistance and gas resistance). The battery box assembly is welded from aluminum profiles, and there are many welds at the corners of the parts. In order to ensure reliable welding, the profile welds must be chamfered. Files are used for manual filing during sample trial production and small-scale production. With large-scale production, on the one hand, the manual filing time is long, and it takes about 5 minutes to file two chamfers, which is labor-intensive and has low work efficiency. On the other hand, the chamfers filed by hand are of different sizes, depths, and shapes, which affect the subsequent welding quality and cause great instability in the overall air tightness test of the battery box, posing a greater safety hazard. Summary of the invention

[0004] The purpose of the present invention is to solve the above technical problems and provide a quick cutting fixture.

[0005] In order to achieve the above technical objectives and meet the above technical requirements, the technical solution adopted by the present invention is: a quick cutting fixture, including a base, characterized in that: a bottom plate sliding mechanism is arranged on the base, and a workpiece clamping mechanism is arranged on the bottom plate sliding mechanism; the base includes a plurality of parallel columns, a lower longitudinal block is arranged in the middle of two longitudinally adjacent columns, an upper cross block and a lower cross block are arranged on the upper end faces and the middle of two transversely adjacent columns, the two ends of the two upper cross blocks are respectively connected to the upper longitudinal blocks, the upper plane of the upper cross blocks is flush with the upper plane of the upper longitudinal block, four corner pads are arranged at the four corners of the base, a support rod is arranged in the middle of the two upper cross blocks, a lower pad is arranged on the support rod, and an adjusting pad is connected to the lower pad through a plurality of cylindrical head screws;

[0006] The bottom plate sliding mechanism includes a first bottom plate, the four corners of the first bottom plate are connected to the four corner pads by screws respectively, a linear guide A and a linear guide B are arranged in parallel on the left and middle parts of the first bottom plate, a plurality of first sliders are arranged on the linear guide A and the linear guide B respectively, a stopper is symmetrically arranged front and back on the first bottom plate on the right side of the linear guide A, a tension spring column A is arranged on the first bottom plate on the right side of the stopper, a cutting machine slot is arranged on the right side of the first bottom plate, a plurality of second cutting machine fixing blocks are arranged on the lower right part of the first bottom plate, a plurality of first cutting machine fixing blocks are arranged on the upper right part of the first bottom plate, a cutting machine is arranged on the first cutting machine fixing block and the second cutting machine fixing block, the cutting machine is arranged in the cutting machine slot, the left end bottom of the cutting machine is arranged on the adjusting pad, and a plurality of lifting eye screws are arranged at the front and rear positions of the first bottom plate;

[0007] The workpiece clamping mechanism includes a second bottom plate, which is arranged on the first sliding block, a tension spring column B is arranged at the bottom of the second bottom plate, one end of the tension spring is arranged on the tension spring column B, and the other end is arranged on the tension spring column A, a side baffle plate is vertically arranged in the middle of the second bottom plate, a support block is vertically arranged on the back of the side baffle plate, an upper nylon pad is arranged at the front of the top of the side baffle plate, the left side and the middle of the second bottom plate are respectively connected with the first lower nylon pad A and the first lower nylon pad B by screws, and a right side clamping mechanism is arranged on the right side of the second bottom plate; the right side clamping mechanism includes front and rear symmetrical A right side block is set, and a second lower nylon pad is set on the second bottom plate between the two right side blocks, and a right side limit block and a slider fixing block are respectively set on the outer sides of the two right side blocks, and the left side of the right side block is connected with a right guide nylon block by screws, and a second slider is set in the slider fixing block, and the opposite surfaces of the right side limit block and the second slider are respectively connected with a right side clamping nylon block A and a right side clamping nylon block B by screws, and an adjusting bolt assembly is set on the second slider, an adjusting bolt fixing plate is set at the front end of the slider fixing block, and a handle is set at the front end of the adjusting bolt assembly.

[0008] Preferably, the center line of the first lower nylon pad A, the center line of the first lower nylon pad B and the center line of the second lower nylon pad are on the same plane.

[0009] Preferably: the first lower nylon pad A comprises a pad, on which a limit block is vertically symmetrically arranged front and rearward, a chamfer is arranged between the inner side surface of the limit block and the upper plane, and the first lower nylon pad B has the same structure as the first lower nylon pad A.

[0010] Preferably, the longitudinal cross-section of the adjusting pad is set to a right-angle trapezoid, and the angle between the upper plane of the adjusting pad and the horizontal plane is set to 1°-5°.

[0011] Preferably, a plurality of waist-shaped stepped grooves of the same shape and size are arranged in parallel on the adjusting pad, and the cylindrical head screws are arranged in the waist-shaped stepped grooves respectively.

[0012] Preferably, a through hole is provided on the right stopper, and the right pressing nylon block A and the right pressing nylon block B are respectively located in the through holes.

[0013] Preferably, the linear guide rail A and the linear guide rail B are both configured as double-slider linear guide rails.

[0014] Compared with the traditional structure, the invention has the following beneficial effects:

[0015] 1. The present invention has novel structure, reasonable design, stable quality, and adopts mechanical equipment for cutting. It only takes 45 seconds to cut two chamfers on a box body, which greatly saves working time, improves work efficiency, and reduces the labor intensity of workers. In addition, the mechanically cut chamfers have the same size and stable quality, which ensures the quality of subsequent welding and enhances the overall airtightness of the battery box body, providing a guarantee for large-scale production with guaranteed quality and quantity.

[0016] 2. The present invention is simple to operate, stable and reliable. During the repeated cutting motion, the tension spring is stretched and contracted for buffering, making the entire cutting process smooth, orderly and reliable. At the same time, the cutting stroke is controlled by adding a limit pin on the base to ensure that the cutting is completed within the minimum stroke.

[0017] 3. The present invention has a compact structure and saves space. The box body is placed vertically. Since the battery box body is an aluminum part, the box body clamping parts in the workpiece clamping mechanism are all made of nylon material. The limit blocks in the feeding direction are reasonably chamfered according to the order in which the materials are placed to ensure that the workpieces are placed quickly and reliably. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is the workpiece cutting assembly drawing of the present invention;

[0020] Figure 3 This is a schematic diagram of the main structure of the base of the present invention;

[0021] Figure 4 A top view of the base of the present invention;

[0022] Figure 5 This is a front view of the bottom plate sliding mechanism of the present invention;

[0023] Figure 6 It is a top view of the bottom plate sliding mechanism of the present invention;

[0024] Figure 7 A top view of the workpiece clamping mechanism of the present invention;

[0025] Figure 8 for Figure 7 Middle AA section view;

[0026] Fig. 9 It is a top view of the first lower nylon pad of the present invention;

[0027] Fig.10 for Fig. 9 Middle BB section view;

[0028] Fig.11 It is a schematic diagram of the structure of the second sliding block of the present invention;

[0029] In the figure: 1. Base, 11. Column, 12. Lower cross bar, 13. Lower vertical bar, 14. Four corner pads, 15. Upper cross bar, 16. Adjustment pad, 161. Waist-shaped step groove, 17. Lower pad, 18. Support rod, 19. Upper vertical bar, 2. Bottom plate sliding mechanism, 21. First bottom plate, 211. Cutting machine groove, 22. Linear guide A, 221. First slider, 23. Block, 24. Tension spring column A, 25. Tension spring, 26. Linear guide B, 27. Second cutting machine fixing block, 28. First cutting machine fixing block, 29. Eye screw, 3. Workpiece clamping mechanism, 31. Second base plate, 32. Support block, 33. Side baffle plate, 34. Upper nylon pad, 35. Right clamping mechanism, 351. Right limit block, 352. Right block, 3521. Through hole, 353. Second lower nylon pad, 354. Right clamping nylon block A, 355. Slider fixing block, 356. Adjusting bolt fixing plate, 357. Adjusting bolt assembly, 358. Handle, 359. Right guide nylon block, 36. First lower nylon pad B, 37. First lower nylon pad A, 371. Pad, 372. Limit block, 4. Cutting machine, 5. Workpiece. DETAILED DESCRIPTION

[0030] The present invention will be further described below.

[0031] Referring to the accompanying drawings, a fast cutting fixture includes a base 1, characterized in that: a bottom plate sliding mechanism 2 is provided on the base 1, and a workpiece clamping mechanism 3 is provided on the bottom plate sliding mechanism 2; the base 1 includes a plurality of parallel columns 11, a lower vertical block 13 is provided in the middle of two longitudinally adjacent columns 11, an upper cross piece 15 and a lower cross piece 12 are provided on the upper end surface and the middle of two transversely adjacent columns 11, respectively, the two ends of the two upper cross pieces 15 are respectively connected with an upper vertical piece 19, the upper plane of the upper cross piece 15 is flush with the upper plane of the upper vertical piece 19, four corners of the base 1 are provided with four corner pads 14, a support rod 18 is provided in the middle of the two upper cross pieces 15, a lower pad 17 is provided on the support rod 18, and an adjustment pad 16 is connected to the lower pad 17 through a plurality of cylindrical head screws;

[0032] The bottom plate sliding mechanism 2 includes a first bottom plate 21, the four corners of the first bottom plate 21 are connected to the four corner pads 14 by screws, a linear guide rail A22 and a linear guide rail B26 are arranged in parallel on the left and middle parts of the first bottom plate 21, and a plurality of first sliders 221 are arranged on the linear guide rails A22 and B26, respectively, a stopper 23 is symmetrically arranged on the first bottom plate 21 on the right side of the linear guide rail A22, and a tension spring column A24 is arranged on the first bottom plate 21 on the right side of the stopper 23. A cutting machine slot 211 is provided on the right side of the first bottom plate 21, a plurality of second cutting machine fixing blocks 27 are provided on the lower right side of the first bottom plate 21, a plurality of first cutting machine fixing blocks 28 are provided on the upper right side of the first bottom plate 21, a cutting machine is provided on the first cutting machine fixing blocks 28 and the second cutting machine fixing blocks 27, the cutting machine is provided in the cutting machine slot 211, the left end bottom of the cutting machine is provided on the adjusting pad 16, and a plurality of eye screws 29 are provided on the front and rear positions of the first bottom plate 21;

[0033] The workpiece clamping mechanism 3 includes a second bottom plate 31, which is arranged on the first slider 221, a tension spring column B is arranged at the bottom of the second bottom plate 31, one end of the tension spring 25 is arranged on the tension spring column B, and the other end is arranged on the tension spring column A24, a side baffle plate 33 is vertically arranged in the middle of the second bottom plate 31, a support block 32 is vertically arranged on the back of the side baffle plate 33, an upper nylon pad 34 is arranged at the front of the top of the side baffle plate 33, the left side and the middle of the second bottom plate 31 are respectively connected with the first lower nylon pad A37 and the first lower nylon pad B36 by screws, and a right side clamping mechanism 35 is arranged on the right side of the second bottom plate 31; the right side clamping mechanism 35 includes a right side baffle plate 33 symmetrically arranged front and back. Block 352, a second lower nylon pad 353 is arranged on the second bottom plate 31 between the two right side blocks 352, and the outer sides of the two right side blocks 352 are respectively provided with a right side limit block 351 and a slider fixing block 355, the left side of the right side block 352 is connected with a right side guide nylon block 359 by screws, a second slider is arranged in the slider fixing block 355, and the opposite surfaces of the right side limit block 351 and the second slider are respectively connected with a right side clamping nylon block A354 and a right side clamping nylon block B by screws, an adjusting bolt assembly 357 is arranged on the second slider, an adjusting bolt fixing plate 356 is arranged at the front end of the slider fixing block 355, and a handle 358 is arranged at the front end of the adjusting bolt assembly 357.

[0034] In the preferred embodiment, the center line of the first lower nylon pad A37, the center line of the first lower nylon pad B36 and the center line of the second lower nylon pad 353 are on the same plane.

[0035] In this preferred embodiment, the first lower nylon pad A37 includes a pad 371, and a limit block 372 is vertically symmetrically arranged on the pad 371 in the front and rear directions. A chamfer is arranged between the inner side surface of the limit block 372 and the upper plane, and the first lower nylon pad B36 has the same structure as the first lower nylon pad A37.

[0036] In this preferred embodiment, the longitudinal cross-section of the adjusting pad 16 is set to be a right-angled trapezoid, and the angle between the upper plane of the adjusting pad 16 and the horizontal plane is set to 1°-5°.

[0037] In the preferred embodiment, a plurality of waist-shaped stepped grooves 161 of the same shape and size are arranged in parallel on the adjusting pad 16 , and the cylindrical head screws are arranged in the waist-shaped stepped grooves 161 respectively.

[0038] In the preferred embodiment, a through hole 3521 is provided on the right stopper 352 , and the right pressing nylon block A354 and the right pressing nylon block B are respectively located in the through hole 3521 .

[0039] In the preferred embodiment, the linear guide rails A22 and B26 are both configured as double-slider linear guide rails.

[0040] During specific implementation, the upper part of the workpiece 5 is close to the upper nylon pad 34, and the bottom of the workpiece 5 is placed on the first lower nylon pad A37, the first lower nylon pad B36, and the second lower nylon pad 353 respectively. The first lower nylon pad A37, the first lower nylon pad B36, and the second lower nylon pad 353 are all made of nylon material, and the limit block 372 is reasonably chamfered to ensure that the workpiece 5 is placed quickly and reliably; the adjustment bolt assembly 357 can be adjusted by the handle 358 to push the second slider and the right side clamping nylon block B forward to clamp the right side of the workpiece 5; the workpiece clamping mechanism 3 is pushed forward and backward, and the workpiece clamping mechanism 3 moves forward and backward along the linear guide A22 and the linear guide B26. At this time, the forming blade in the cutting machine 4 cuts the corner of the workpiece 5, and the corner cutting on one side of the workpiece 5 is completed; the workpiece 5 is turned 180°, and the above action is repeated to complete the cutting of the other corner. During the repetitive motion of the entire cutting, the tension spring 25 is stretched and contracted for buffering, making the entire cutting process smooth, orderly and reliable. At the same time, the cutting stroke is controlled by adding a limit pin on the tooling base to ensure that the cutting is completed within the minimum stroke. The workpiece can also be positioned parallel to the bottom plate sliding mechanism, and the cutting can also be completed.

[0041] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A quick cutting fixture, comprising a base (1), characterized in that: The base (1) is provided with a bottom plate sliding mechanism (2), and the bottom plate sliding mechanism (2) is provided with a workpiece clamping mechanism (3); the base (1) comprises a plurality of parallel columns (11), a lower longitudinal block (13) is provided in the middle of two longitudinally adjacent columns (11), an upper cross block (15) and a lower cross block (12) are provided on the upper end surface and the middle of two transversely adjacent columns (11), the two ends of the two upper cross blocks (15) are respectively connected to the upper longitudinal blocks (19), the upper plane of the upper cross block (15) is flush with the upper plane of the upper longitudinal block (19), four corner pads (14) are provided at the four corners of the base (1), a support rod (18) is provided in the middle of the two upper cross blocks (15), a lower pad (17) is provided on the support rod (18), and an adjustment pad (16) is connected to the lower pad (17) via a plurality of cylindrical head screws; The bottom plate sliding mechanism (2) comprises a first bottom plate (21), the four corners of the first bottom plate (21) being connected to four corner pads (14) by screws respectively, a linear guide rail A (22) and a linear guide rail B (26) being arranged in parallel on the left side and the middle part of the first bottom plate (21), a plurality of first sliding blocks (221) being arranged on the linear guide rails A (22) and the linear guide rails B (26) respectively, a stopper (23) being symmetrically arranged on the first bottom plate (21) on the right side of the linear guide rail A (22), a tension spring column A (23) being arranged on the first bottom plate (21) on the right side of the stopper (23), 4), a cutting machine slot (211) is provided on the right side of the first bottom plate (21), a plurality of second cutting machine fixing blocks (27) are provided on the lower right side of the first bottom plate (21), a plurality of first cutting machine fixing blocks (28) are provided on the upper right side of the first bottom plate (21), a cutting machine is provided on the first cutting machine fixing blocks (28) and the second cutting machine fixing blocks (27), the cutting machine is provided in the cutting machine slot (211), the left end bottom of the cutting machine is provided on the adjusting pad (16), and a plurality of eye screws (29) are provided at front and rear positions on the first bottom plate (21); The workpiece clamping mechanism (3) comprises a second bottom plate (31), the second bottom plate (31) being arranged on the first sliding block (221), a tension spring column B being arranged at the bottom of the second bottom plate (31), one end of the tension spring (25) being arranged on the tension spring column B, and the other end being arranged on the tension spring column A (24), a side baffle plate (33) being arranged vertically in the middle of the second bottom plate (31), a support block (32) being arranged vertically on the back of the side baffle plate (33), and an upper nylon pad (34) being arranged at the front of the top end of the side baffle plate (33), The left side and the middle part of the second bottom plate (31) are connected to a first lower nylon pad A (37) and a first lower nylon pad B (36) by screws respectively. A right side clamping mechanism (35) is arranged on the right side of the second bottom plate (31). The right side clamping mechanism (35) comprises right side blocks (352) symmetrically arranged front and rear. A second lower nylon pad (353) is arranged on the second bottom plate (31) between the two right side blocks (352). The outer sides of the two right side blocks (352) are respectively provided with right limit blocks (351), sliding blocks (353) and sliding blocks (354). The slider fixing block (355) is provided with a right guide nylon block (359) on the left side of the right stopper (352) via screws, a second slider is provided in the slider fixing block (355), the right limit stopper (351) and the opposite surfaces of the second slider are respectively connected to a right clamping nylon block A (354) and a right clamping nylon block B via screws, an adjusting bolt assembly (357) is provided on the second slider, an adjusting bolt fixing plate (356) is provided at the front end of the slider fixing block (355), and the adjusting bolt assembly (357) is provided on the slider fixing block (355). ) is provided with a handle (358) at the front end; the center line of the first lower nylon pad A (37), the center line of the first lower nylon pad B (36) and the center line of the second lower nylon pad (353) are on the same plane, the first lower nylon pad A (37) comprises a pad (371), a limit block (372) is provided on the pad (371) vertically symmetrically in the front and rear, a chamfer is provided between the inner side surface of the limit block (372) and the upper plane, and the first lower nylon pad B (36) and the first lower nylon pad A (37) have the same structure.

2. A quick cutting fixture according to claim 1, characterized in that: The longitudinal cross-section of the adjusting pad (16) is set to be a right-angled trapezoid, and the angle between the upper plane of the adjusting pad (16) and the horizontal plane is set to be 1°-5°.

3. A quick cutting fixture according to claim 1, characterized in that: The adjusting pad (16) is provided with a plurality of waist-shaped stepped grooves (161) of the same shape and size in parallel, and the cylindrical head screws are respectively arranged in the waist-shaped stepped grooves (161).

4. A quick cutting fixture according to claim 1, characterized in that: The right stopper (352) is provided with a through hole (3521), and the right pressing nylon block A (354) and the right pressing nylon block B are respectively located in the through holes (3521).

5. The fast cutting fixture according to claim 1, characterized in that: The linear guide rail A (22) and the linear guide rail B (26) are both configured as double-slider linear guide rails.

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