Laser cutting jig

Abstract

The application belongs to the technical field of semiconductor packaging and specifically discloses a laser cutting jig, which comprises a base, a pressing structure matched with the base is arranged on the base, and a suction structure matched with the pressing structure is arranged on the base; the pressing structure comprises a pressing cylinder arranged on one side of the base, and the pressing cylinder is matched with a pressing cover plate arranged on the base. The suction support and fixation of the product to be cut are realized through the cooperation of the pressing structure and the suction structure, the stability of the product on the jig is improved, the position deviation of the product during cutting is prevented, the fixation and clamping of products with different thicknesses are realized through the adjustment of the height of the pressing cover plate, the fixation and clamping of products with different sizes are realized through the detachable pressing cover plate, so that different types of products are fixed to the suction structure, and each suction column can be accurately and stably moved to the center of the product after cutting through the accurate adjustment of the position of the suction column.

Description

Technical Field

[0001] This invention belongs to the field of semiconductor packaging and testing technology, specifically relating to laser cutting fixtures. Background Technology

[0002] When cutting substrates and other products using a laser cutting machine, a fixture corresponding to the product needs to be selected for fixation. Existing fixtures adsorb and fix the bottom surface of the product, which facilitates laser cutting. However, during the laser cutting process, the movement of the laser cutting machine's track can easily cause the fixture to shake. This shaking can cause the product to shift within the fixture, resulting in the cut product not meeting the required specifications and seriously affecting the product yield.

[0003] In addition, existing fixtures can only adsorb and fix a single product. When the laser cutting machine cuts products of different sizes, it is necessary to change to a suitable fixture according to the product size. After the change, the fixture also needs to be calibrated to match the product, which will affect the product cutting production efficiency.

[0004] Chinese patent application CN206153775U discloses a laser cutting fixture for supporting labels to be cut. The labels have multiple areas to be cut. The fixture includes an acrylic or bakelite support plate with multiple waste removal holes. Each waste removal hole corresponds to one of the areas to be cut on the label, and the size of each waste removal hole is larger than the size of the area to be cut. During label processing, waste material falls directly into a receiving tray, leaving no residue on the support plate, saving waste removal time. However, this laser cutting fixture can wobble when the laser cutting machine is running, affecting its stability and increasing the probability of defective products after cutting. Summary of the Invention

[0005] To address the aforementioned issues, this patent provides a laser cutting fixture that enhances product cutting stability and can fix different types of products.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0007] A laser cutting fixture includes a base, a pressing structure that cooperates with the base, and an adsorption structure that cooperates with the pressing structure. The pressing structure includes a pressing cylinder disposed on one side of the base, and the pressing cylinder cooperates with a pressing cover plate disposed on the base.

[0008] Preferably, a pressing shaft that cooperates with the pressing cylinder is provided on one side of the pressing cover plate. The pressing shaft cooperates with the pressing motor provided on the pressing cylinder through a pressing gear. A pressing spring that cooperates with the pressing cylinder is provided on the pressing shaft.

[0009] Preferably, the base is provided with a pressure rack, which cooperates with a pressure linear bearing provided on the base. The pressure rack cooperates with a pressure fixing plate provided at the end of the pressure shaft. The pressure fixing plate is provided with multiple fixing sleeves, which cooperate with pressure ribs provided at the end of the pressure rack. The base is provided with a base motor that cooperates with the pressure rack.

[0010] Preferably, the base is provided with a cover plate adjuster that cooperates with the pressure cylinder. The cover plate adjuster includes a pair of bevel gears with a gap disposed on the pressure shaft. The bevel gears cooperate with the cover plate adjusting frame disposed on the base.

[0011] Preferably, the cover plate adjusting frame is provided with a cover plate adjusting groove that cooperates with the pressing shaft, the cover plate adjusting groove is provided with an adjusting gear that cooperates with the bevel gear, the shaft of the adjusting gear is provided with a cover plate adjusting shaft, the two ends of the cover plate adjusting shaft are provided with cover plate linear bearings that cooperate with the cover plate adjusting groove, and the cover plate adjusting shaft is fitted with a gear bearing connected to the adjusting gear.

[0012] Preferably, the cover plate adjusting frame is provided with a cover plate adjusting push rod that cooperates with the cover plate adjusting shaft; the pressing shaft is provided with a connecting plate that is clearance-fitted with the pressing cylinder, and the connecting plate is detachably connected to the pressing slide provided on the side of the pressing cover plate; the pressing motor is connected to the pressing cylinder through the pressing spring, and the pressing spring is provided with a telescopic seat that is connected to the pressing motor and the pressing cylinder; the pressing cover plate is provided with a cutting hole.

[0013] Preferably, the adsorption structure includes an adsorption frame mounted on a base, with multiple sets of adsorbers that cooperate with the pressure cover plate on the adsorption frame. Each adsorber includes an adsorption crossbar mounted on the adsorption frame, with multiple adsorption columns that are spaced apart and fitted together. The top edges of the adsorption columns are all chamfered. The surface of the adsorption columns is treated to be smooth and have surface burrs removed.

[0014] Preferably, both ends of the adsorption crossbar are provided with crossbar adjusters. The crossbar adjuster includes an adsorption adjustment shaft set on the adsorption frame, a threaded sleeve threadedly connected to the adsorption adjustment shaft on the adsorption adjustment shaft, the threaded sleeve being connected to the adsorption crossbar through a sleeve bearing, an adjustment motor cooperating with the threaded sleeve on the sleeve bearing, and the movable end of the adjustment motor cooperating with a sleeve gear sleeved on the threaded sleeve.

[0015] Preferably, the adsorption crossbar is provided with an adsorption regulator that cooperates with the adsorption column. The adsorption regulator includes a crossbar adjustment shaft that is disposed on the adsorption crossbar and fits with the adsorption crossbar with a clearance. The crossbar adjustment shaft cooperates with adsorption linear bearings disposed on the adsorption column. The adsorption crossbar is provided with an adsorption adjustment groove that cooperates with an adsorption synchronization wheel disposed at the bottom of the adsorption column. The adsorption synchronization wheel cooperates with an adsorption motor disposed on the adsorption column. The adsorption adjustment groove is provided with a strip-shaped synchronization tooth plate that cooperates with the adsorption synchronization wheel. The adsorption column is a regular prism.

[0016] Preferably, the adsorption column has an adsorption hole at its center, and an adsorption cavity that matches the adsorption hole is provided inside the adsorption column. The diameter of the adsorption hole is smaller than the diameter of the adsorption cavity. A pressure sensor that matches the pressing cover plate is provided on the adsorption column. A negative pressure cavity is provided inside the base, and a collection net is provided on the negative pressure cavity.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] (1) The present invention fixes the product to be cut by setting a pressing structure on the base to prevent the product to be cut from moving in the fixture, and sets an adsorption structure on the base to adsorb and support the product to be cut to prevent the product from deforming and damaging the product during cutting. Through the cooperation of the pressing structure and the adsorption structure, the cutting stability of the product to be cut can be improved, the positional deviation of the product during the cutting process can be prevented, and the product deformation during cutting can be prevented, thereby improving the cutting accuracy of the product, improving the yield of the product, and facilitating the rapid cutting of the product.

[0019] (2) The pressure cover plate of the pressure structure contacts the product to be cut placed in the fixture through the pressure cylinder, fixes the product to be cut, prevents the product to be cut from shifting during the cutting process, and improves the cutting stability of the product to be cut; the pressure motor drives the pressure shaft to rotate in the pressure cylinder by meshing with the pressure gear, thereby driving the pressure cover plate to fix the product to be cut.

[0020] (3) The base motor drives the pressure rack to move up and down along the pressure linear bearing. As the pressure shaft drives the pressure cover plate to rotate to the specified angle, the pressure rack penetrates into the fixed sleeve through the pressure rib. The rotation angle of the pressure shaft is fixed by the pressure fixing plate, thereby fixing the pressure cover plate at a suitable angle. The pressure cover plate can realize the fixing of the product to be cut or the opening action after the cutting is completed, which makes it convenient to fix the product to be cut and convenient to put the product to be cut again, so as to realize the continuous cutting process of the substrate.

[0021] (4) The cover plate adjuster allows for adjustment of the height of the pressure plate by adjusting the pressure shaft, enabling the fixture to clamp products of different thicknesses and making it suitable for laser gas cutting of products of different thicknesses, thus broadening its application range. The cover plate adjuster uses the cover plate adjusting push rod on the cover plate adjusting frame to push the cover plate adjusting shaft to make fine adjustments along the cover plate linear bearing, which in turn drives the adjusting gear to make fine adjustments in the left and right directions. The adjusting gear moves along the meshing bevel gear teeth, pushing the bevel gear to adjust up and down in the cover plate adjusting groove, thereby adjusting the height of the pressure shaft in the pressure cylinder. Through the adjustment of the pressure shaft, the pressure plate adjusts its height up and down with the pressure shaft, increasing the gap between the pressure plate and the fixture, thus clamping products of different thicknesses and increasing the application range of the fixture. The connecting plate facilitates the detachable connection between the pressure plate and the pressure shaft. When it is necessary to cut products of different sizes, the clamping treatment of products of different sizes can be achieved by replacing the pressure plate. The pressure spring, in conjunction with the retractable seat, ensures that the pressure motor remains engaged with the pressure gear on the pressure shaft during fine adjustments, achieving stable adjustment of the pressure shaft. The laser cuts the product through cutting holes in the pressure cover plate.

[0022] (5) The adsorption structure is achieved by setting multiple adsorbers on the adsorption rack on the base. Multiple adsorbers correspond to the whole row or column of cut products, realizing the individual adsorption treatment of the cut products. It can be used with the pressure cover to fix the products to be cut, and can also prevent the products from falling after cutting and affecting the product quality. The top edges of the adsorption column are all chamfered, so that after the products are adsorbed, there will be no adsorption column marks or scratches on the products, thus improving the quality of the cut products.

[0023] (6) The position of the adsorption crossbar is adjusted by the crossbar adjuster, and the spacing of the adsorption columns is adjusted by the adsorption adjuster. The position of the adsorption columns is adjusted and arranged according to the requirements, so that the center of the adsorption column is aligned with the center of the product after cutting. This allows the fixture to cut products of different sizes and specifications, achieving the purpose of multi-purpose machine, reducing the cost of fixtures and the investment in fixture differentiation production, and significantly improving the utilization rate of fixtures. The adjusting motor on the sleeve bearing in the crossbar adjuster drives the threaded sleeve to rotate in the adsorption adjusting shaft through the sleeve gear, which drives the adsorption crossbar to move in opposite directions along the adsorption adjusting shaft. The system precisely adjusts the spacing of the adsorption crossbars to facilitate moving the adsorption column to the center of the cut product. The adsorption regulator drives the adsorption synchronous wheel, which moves within the adsorption adjustment groove, via the adsorption motor on the adsorption column. The meshing of the strip-shaped synchronous toothed plate with the adsorption synchronous wheel drives the adsorption linear bearing on the adsorption column to move precisely and smoothly along the crossbar adjustment axis. The crossbar regulator, in conjunction with the adsorption regulator, can precisely and stably move the adsorption column to the center of the cut product, adsorbing and fixing the product through the adsorption holes, maintaining the stability of the product before and after cutting, improving cutting efficiency and quality, and preventing the product from falling and scratching after cutting.

[0024] In summary, this invention achieves adsorption support and fixation of the product to be cut through a pressing structure combined with an adsorption structure, improving the stability of the product on the fixture and preventing positional displacement during cutting. The pressing structure can fix and clamp products of different thicknesses by adjusting the height of the pressing cover plate, and can fix and clamp products of different sizes through a detachable pressing cover plate, thereby fixing different types of products to the adsorption structure. The adsorption structure, through precise adjustment of the position of the adsorption columns, ensures that each adsorption column can move accurately and stably to the center of the product after cutting, and uses adsorption holes to adsorb and fix the product, maintaining the stability of the product before and after cutting, improving cutting efficiency and quality, and preventing the product from falling and scratching after cutting. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention in Embodiment 1;

[0026] Figure 2 This is a schematic diagram of the pressing structure in Example 1;

[0027] Figure 3 This is a schematic diagram of the pressure shaft in Example 1;

[0028] Figure 4 This is a schematic diagram of the pressure rack structure in Example 1;

[0029] Figure 5 This is a schematic diagram of the cover plate adjusting frame in Embodiment 1;

[0030] Figure 6This is a schematic diagram of the adsorption structure in Example 1;

[0031] Figure 7 This is a schematic diagram of the adsorption regulator in Example 1.

[0032] In the diagram, 1 is the base, 2 is the pressing shaft, 3 is the pressing motor, 4 is the pressing cover plate, 5 is the pressing cylinder, 6 is the cover plate adjuster, 7 is the cutting hole, 8 is the adsorption frame, 9 is the connecting plate, 10 is the pressing fixing plate, 11 is the fixing sleeve, 12 is the pressing gear, 13 is the bevel gear, 14 is the pressing linear bearing, 15 is the pressing rib, 16 is the pressing rack, 17 is the cover plate adjusting frame, 18 is the cover plate adjusting groove, 19 is the cover plate linear bearing, 20 is the cover plate adjusting shaft, 21 is the adjusting gear, 22 is the gear bearing, 23 is the cover plate adjusting push rod, 24 is the sleeve bearing, 25 is the adsorption crossbar, 26 is the adsorption column, 27 is the adsorption linear bearing, 28 is the adsorption adjusting shaft, 29 is the adjusting motor, 30 is the crossbar adjusting shaft, 31 is the adsorption motor, and 32 is the adsorption adjusting groove. Detailed Implementation

[0033] The present invention will be further illustrated by specific embodiments below, but this does not limit the scope of the invention.

[0034] Example 1

[0035] Laser cutting fixture, its structure is as follows Figures 1-7 As shown, where Figure 2 The bevel gear 13, pressure spring, and telescopic seat are not shown. The system includes a base 1, a pressure structure that mates with the base 1, and an adsorption structure that mates with the pressure structure. The pressure structure includes a pressure cylinder 5 located on one side of the base 1, which mates with a pressure cover plate 4 located on the base 1. A pressure shaft 2, which mates with the pressure cylinder 5, is located on one side of the pressure cover plate 4. The pressure shaft 2 mates with a pressure motor 3 located on the pressure cylinder 5 via a pressure gear 12.

[0036] The base 1 is equipped with a pressure rack 16, which cooperates with a pressure linear bearing 14 mounted on the base 1. The pressure rack 16 also cooperates with a pressure fixing plate 10 mounted at the end of the pressure shaft 2. The pressure fixing plate 10 is equipped with multiple fixing sleeves 11, which cooperate with pressure ribs 15 mounted at the end of the pressure rack 16. The base 1 is equipped with a base motor that cooperates with the pressure rack 16. The base 1 is equipped with a cover plate adjuster 6 that cooperates with the pressure cylinder 5. The cover plate adjuster 6 includes a pair of bevel gears 13 with a clearance on the pressure shaft 2. The bevel gears 13 cooperate with a cover plate adjusting bracket 17 mounted on the base 1.

[0037] The cover plate adjusting frame 17 is provided with a cover plate adjusting groove 18 that cooperates with the pressing shaft 2. The cover plate adjusting groove 18 is provided with an adjusting gear 21 that cooperates with the bevel gear 13. The shaft of the adjusting gear 21 is provided with a cover plate adjusting shaft 20. The two ends of the cover plate adjusting shaft 20 are provided with cover plate linear bearings 19 that cooperate with the cover plate adjusting groove 18. The cover plate adjusting shaft 20 is fitted with a gear bearing 22 that is connected to the adjusting gear 21.

[0038] The cover plate adjusting frame 17 is provided with a cover plate adjusting push rod 23 that cooperates with the cover plate adjusting shaft 20; the pressing shaft 2 is provided with a connecting plate 9 that is clearance-fitted with the pressing cylinder 5, and the connecting plate 9 is detachably connected to the pressing slide provided on the side of the pressing cover plate 4; the pressing motor 3 is connected to the pressing cylinder 5 through the pressing spring, and the pressing spring is provided with a telescopic seat that is connected to the pressing motor 3 and the pressing cylinder 5; the pressing cover plate 4 is provided with a cutting hole 7.

[0039] The adsorption structure includes an adsorption frame 8 mounted on a base 1. The adsorption frame 8 is equipped with multiple sets of adsorbers that cooperate with the pressure cover plate 4. Each adsorber includes an adsorption crossbar 25 mounted on the adsorption frame 8. The adsorption crossbar 25 is equipped with multiple adsorption columns 26 that are fitted with gaps. The top edges of the adsorption columns 26 are all chamfered.

[0040] Both ends of the adsorption crossbar 25 are equipped with crossbar adjusters. The crossbar adjuster includes an adsorption adjustment shaft 28 set on the adsorption frame 8. The adsorption adjustment shaft 28 is provided with a threaded sleeve that is threadedly connected to the adsorption adjustment shaft 28. The threaded sleeve is connected to the adsorption crossbar 25 through a sleeve bearing 24. The sleeve bearing 24 is provided with an adjustment motor 29 that cooperates with the threaded sleeve. The movable end of the adjustment motor 29 cooperates with a sleeve gear sleeved on the threaded sleeve.

[0041] An adsorption regulator is provided on the adsorption crossbar 25 to cooperate with the adsorption column 26. The adsorption regulator includes a crossbar adjustment shaft 30 that is disposed on the adsorption crossbar 25 and is clearance-fitted with the adsorption crossbar 25. The crossbar adjustment shaft 30 cooperates with the adsorption linear bearings 27 respectively disposed on the adsorption column 26. An adsorption adjustment groove 32 is provided on the adsorption crossbar 25. The adsorption adjustment groove 32 cooperates with the adsorption synchronous wheel disposed at the bottom of the adsorption column 26. The adsorption synchronous wheel cooperates with the adsorption motor 31 disposed on the adsorption column 26. A strip-shaped synchronous toothed plate is provided in the adsorption adjustment groove 32 to cooperate with the adsorption synchronous wheel. The adsorption column 26 is a regular prism.

[0042] The adsorption column 26 has an adsorption hole at its center and an adsorption cavity that matches the adsorption hole inside the adsorption column 26. The diameter of the adsorption hole is smaller than the diameter of the adsorption cavity. A pressure sensor that matches the pressing cover plate 4 is provided on the adsorption column 26. A negative pressure cavity is provided inside the base 1 and a collection net is provided on the negative pressure cavity.

[0043] The method and steps for laser cutting fixtures include:

[0044] Step 1: Adjusting the pressing structure;

[0045] Before the product to be cut is placed into the fixture, the pressing structure is adjusted according to the specifications of the product to be cut. A suitable pressing cover plate 4 is selected. The connecting plate 9 of the pressing shaft 2 is connected to the pressing cover plate 4 of the appropriate specifications through the pressing slide. The height of the pressing cover plate 4 is adjusted by the cover plate adjuster 6. The cover plate adjuster 6 pushes the cover plate adjusting shaft 20 along the cover plate linear bearing 19 on the cover plate adjusting frame 17 through the cover plate adjusting push rod 23 on the cover plate adjusting frame 17 to make a fine adjustment of the position, so that the adjusting gear 21 makes a fine adjustment of the position in the left and right directions. The adjusting gear 21 moves along the teeth of the bevel gear 13 that meshes with it, pushing the bevel gear 13 to adjust up and down in the cover plate adjusting groove 18. The pressing shaft 2 adjusts the height position up and down in the pressing cylinder 5. Through the up and down adjustment of the pressing shaft 2, the pressing cover plate 4 adjusts the height up and down with the pressing shaft 2. The gap between the pressing cover plate 4 and the adsorption column 26 increases or decreases, which facilitates the fixation of products to be cut with different thicknesses. The gear bearing 22 allows the adjusting gear 21 to rotate with the bevel gear 13 without driving the cover plate adjusting shaft 20 to rotate.

[0046] Step two, adjustment of the adsorption structure;

[0047] While adjusting the pressing structure, the crossbar adjuster and adsorption adjuster of the adsorption structure are precisely adjusted. The crossbar adjusters at both ends of the adsorption crossbar 25 are adjusted synchronously in opposite directions. The adjusting motor 29 drives the threaded sleeve to rotate in the adsorption adjusting shaft 28 through the sleeve gear. Through the sleeve bearing 24, the adsorption crossbar 25 is moved in opposite directions along the adsorption adjusting shaft 28 on the adsorption frame 8, so as to achieve precise adjustment of the interval position of each adsorption crossbar 25.

[0048] While the position of the adsorption crossbar 25 is adjusted, the adsorption regulator adjusts the position of the adsorption column 26. The adsorption motor 31 drives the adsorption synchronous wheel to move within the adsorption adjustment groove 32. The meshing of the strip-shaped synchronous toothed plate within the adsorption adjustment groove 32 with the adsorption synchronous wheel drives the adsorption linear bearing 27 on the adsorption column 26 to move precisely and smoothly along the crossbar adjustment shaft 30, thereby accurately and stably moving the adsorption column 26 to the center of the cut product, facilitating adsorption and fixation of the product through the adsorption hole.

[0049] Step 3: Cutting the product;

[0050] The product to be cut is placed onto the suction column 26 in the suction rack 8 of the fixture base 1 on the laser cutting machine table. After the height of the pressure cover plate 4 and the pressure shaft 2 is adjusted, the pressure motor 3, through its movement and meshing with the pressure gear 12, drives the pressure shaft 2 to rotate within the pressure cylinder 5 and the cover plate adjustment groove 18. This causes the pressure cover plate 4 to rotate to an angle parallel to the product to be cut, thus fixing the product parallel to the surface and preventing an angle between the pressure cover plate 4 and the product, achieving uniform fixation of the product. After the pressure cover plate 4 rotates to the specified angle, the base motor drives the pressure rack 16 along the pressure... The linear bearing 14 moves up and down. After the pressing shaft 2 drives the pressing cover plate 4 to rotate to the specified angle, the pressing ribs 15 of the pressing rack 16 can accurately penetrate into the fixed sleeve 11. The rotation angle of the pressing shaft 2 is fixed by the pressing fixing plate 10, and the pressing cover plate 4 is fixed at the specified angle. The pressing cover plate 4 can realize the fixing action of the product to be cut. After the fixing is completed, the product is laser-cut by the laser cutting machine through the cutting hole 7. The base 1 is provided with a negative pressure cavity to generate a negative pressure adsorption effect. The debris generated during the cutting process is adsorbed by the collection net.

[0051] Example 2

[0052] The method of laser cutting fixture, step one, is the adjustment of the pressure structure;

[0053] Before the product to be cut is placed into the fixture, the pressing structure is adjusted according to the specifications of the product to be cut. A suitable pressing cover plate 4 is selected. The connecting plate 9 of the pressing shaft 2 is connected to the pressing cover plate 4 of the appropriate specifications through the pressing slide. The height of the pressing cover plate 4 is adjusted by the cover plate adjuster 6. The cover plate adjuster 6 pushes the cover plate adjusting shaft 20 along the cover plate linear bearing 19 on the cover plate adjusting frame 17 through the cover plate adjusting push rod 23 on the cover plate adjusting frame 17 to make a fine adjustment of the position, so that the adjusting gear 21 makes a fine adjustment of the position in the left and right directions. The adjusting gear 21 moves along the teeth of the bevel gear 13 that meshes with it, pushing the bevel gear 13 to adjust up and down in the cover plate adjusting groove 18. The pressing shaft 2 adjusts the height position up and down in the pressing cylinder 5. Through the up and down adjustment of the pressing shaft 2, the pressing cover plate 4 adjusts the height up and down with the pressing shaft 2. The gap between the pressing cover plate 4 and the adsorption column 26 increases or decreases, which facilitates the fixation of products to be cut with different thicknesses. The gear bearing 22 allows the adjusting gear 21 to rotate with the bevel gear 13 without driving the cover plate adjusting shaft 20 to rotate.

[0054] Step two, adjustment of the adsorption structure;

[0055] While adjusting the pressing structure, the crossbar adjuster and adsorption adjuster of the adsorption structure are precisely adjusted. The crossbar adjusters at both ends of the adsorption crossbar 25 are adjusted synchronously in opposite directions. The adjusting motor 29 drives the threaded sleeve to rotate in the adsorption adjusting shaft 28 through the sleeve gear. Through the sleeve bearing 24, the adsorption crossbar 25 is moved in opposite directions along the adsorption adjusting shaft 28 on the adsorption frame 8, so as to achieve precise adjustment of the interval position of each adsorption crossbar 25.

[0056] While the position of the adsorption crossbar 25 is adjusted, the adsorption regulator adjusts the position of the adsorption column 26. The adsorption motor 31 drives the adsorption synchronous wheel to move within the adsorption adjustment groove 32. The meshing of the strip-shaped synchronous toothed plate within the adsorption adjustment groove 32 with the adsorption synchronous wheel drives the adsorption linear bearing 27 on the adsorption column 26 to move precisely and smoothly along the crossbar adjustment shaft 30, thereby accurately and stably moving the adsorption column 26 to the center of the cut product, facilitating adsorption and fixation of the product through the adsorption hole.

[0057] Step 3: Cutting the product;

[0058] The product to be cut is placed onto the suction column 26 in the suction rack 8 of the fixture base 1 on the laser cutting machine table. After the height of the pressure cover plate 4 and the pressure shaft 2 is adjusted, the pressure motor 3, through its movement and meshing with the pressure gear 12, drives the pressure shaft 2 to rotate within the pressure cylinder 5 and the cover plate adjustment groove 18. This causes the pressure cover plate 4 to rotate to an angle parallel to the product to be cut, thus fixing the product parallel to the surface and preventing an angle between the pressure cover plate 4 and the product, achieving uniform fixation of the product. After the pressure cover plate 4 rotates to the specified angle, the base motor drives the pressure rack 16 along the pressure... The linear bearing 14 moves up and down. After the pressing shaft 2 drives the pressing cover plate 4 to rotate to the specified angle, the pressing ribs 15 of the pressing rack 16 can accurately penetrate into the fixed sleeve 11. The rotation angle of the pressing shaft 2 is fixed by the pressing fixing plate 10, and the pressing cover plate 4 is fixed at the specified angle. The pressing cover plate 4 can realize the fixing action of the product to be cut. After the fixing is completed, the product is laser-cut by the laser cutting machine through the cutting hole 7. The base 1 is provided with a negative pressure cavity to generate a negative pressure adsorption effect. The debris generated during the cutting process is adsorbed by the collection net.

[0059] Example 3

[0060] The laser cutting fixture differs from that in Example 1 in that the pressure shaft 2 is equipped with a pressure spring that cooperates with the pressure cylinder 5.

[0061] The above description is only a preferred embodiment of the present invention, but is not limited to the above examples. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting fixture, including a base, characterized in that, The base is provided with a pressing structure that cooperates with the base, and the base is provided with an adsorption structure that cooperates with the pressing structure; the pressing structure includes a pressing cylinder disposed on one side of the base, and the pressing cylinder cooperates with a pressing cover plate disposed on the base; The pressing cover plate is provided with a pressing shaft that cooperates with the pressing cylinder on one side. The pressing shaft cooperates with the pressing motor provided on the pressing cylinder through a pressing gear. The base is provided with a pressure rack, which cooperates with a pressure linear bearing on the base. The pressure rack cooperates with a pressure fixing plate at the end of the pressure shaft. The pressure fixing plate is provided with multiple fixing sleeves, which cooperate with pressure ribs at the end of the pressure rack. The base is provided with a base motor that cooperates with the pressure rack. The base is provided with a cover plate adjuster that cooperates with the pressure cylinder. The cover plate adjuster includes a pair of bevel gears with a gap set on the pressure shaft. The bevel gears cooperate with the cover plate adjusting frame provided on the base. The cover plate adjusting frame is provided with a cover plate adjusting groove that cooperates with the pressing shaft. The cover plate adjusting groove is provided with an adjusting gear that cooperates with the bevel gear. The shaft of the adjusting gear is provided with a cover plate adjusting shaft. The two ends of the cover plate adjusting shaft are provided with cover plate linear bearings that cooperate with the cover plate adjusting groove. The cover plate adjusting shaft is fitted with a gear bearing that is connected to the adjusting gear. The cover plate adjusting frame is equipped with a cover plate adjusting push rod that cooperates with the cover plate adjusting shaft; the pressing shaft is equipped with a connecting plate, which is detachably connected to the pressing slide on the side of the pressing cover plate; the pressing motor is connected to the pressing cylinder through a pressing spring, and the pressing spring is equipped with a telescopic seat that connects to the pressing motor and the pressing cylinder; the pressing cover plate is equipped with a cutting hole; the connecting plate is connected to a pressing cover plate of appropriate specifications through the pressing slide, and the height of the pressing cover plate is adjusted by the cover plate adjuster.

2. The laser cutting fixture according to claim 1, characterized in that, The adsorption structure includes an adsorption frame mounted on a base, with multiple sets of adsorbers that cooperate with the pressure cover plate on the adsorption frame. Each adsorber includes an adsorption crossbar mounted on the adsorption frame, with multiple adsorption columns that are spaced apart and fitted together. The top edges of the adsorption columns are all chamfered.

3. The laser cutting fixture according to claim 2, characterized in that, Both ends of the adsorption crossbar are equipped with crossbar adjusters. The crossbar adjuster includes an adsorption adjustment shaft set on the adsorption frame. The adsorption adjustment shaft is provided with a threaded sleeve that is threadedly connected to the adsorption adjustment shaft. The threaded sleeve is connected to the adsorption crossbar through a sleeve bearing. The sleeve bearing is provided with an adjustment motor that cooperates with the threaded sleeve. The movable end of the adjustment motor cooperates with a sleeve gear sleeved on the threaded sleeve.

4. The laser cutting fixture according to claim 3, characterized in that, The adsorption crossbar is equipped with an adsorption regulator that cooperates with the adsorption column. The adsorption regulator includes a crossbar adjustment shaft that is fitted with the adsorption crossbar with a clearance. The crossbar adjustment shaft cooperates with adsorption linear bearings respectively installed on the adsorption column. The adsorption crossbar is equipped with an adsorption adjustment groove that cooperates with an adsorption synchronization wheel installed at the bottom of the adsorption column. The adsorption synchronization wheel cooperates with an adsorption motor installed on the adsorption column. The adsorption adjustment groove is equipped with a strip-shaped synchronization tooth plate that cooperates with the adsorption synchronization wheel. The adsorption column is a regular prism.

5. The laser cutting fixture according to claim 4, characterized in that, The adsorption column has an adsorption hole at its center, and an adsorption cavity that matches the adsorption hole is provided inside the adsorption column. The diameter of the adsorption hole is smaller than the diameter of the adsorption cavity. A pressure sensor that matches the pressure cover plate is provided on the adsorption column. A negative pressure cavity is provided inside the base, and a collection net is provided on the negative pressure cavity.

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