A processing tool for a luggage shell

Abstract

The present application belongs to the technical field of luggage production and manufacturing, and particularly relates to a processing tool for a luggage shell, comprising: a rack; a movable platform movably connected with the rack along a first direction; a positioning mold installed on the movable platform, the positioning mold being used for fixing an injection-molded luggage shell, the positioning mold comprising an angle block used for abutting against an inner wall of a round corner portion, a plurality of round corner surfaces with different radii being arranged on a circumferential surface of the angle block, the angle block being rotationally arranged relative to the movable platform about an axis parallel to a second direction, so that any one of the round corner surfaces can abut against the inner wall of the round corner portion; and a mechanical arm hoisted on a cross beam, the mechanical arm being movably arranged relative to the cross beam along a third direction, a power output end of the mechanical arm being provided with a grinding tool. Through the design of the rotatable angle block and the plurality of round corner surfaces with different radii, the present application realizes precise abutment against the inner wall of the luggage shell with different round corner radii, and meets the processing requirements of luggage shells of various specifications.

Description

Technical Field

[0001] This invention belongs to the field of luggage manufacturing technology, specifically relating to a processing tool for luggage shells. Background Technology

[0002] After initial molding, bag shells, especially injection-molded shells, often have burrs on their edges. To prevent these burrs from negatively impacting subsequent edge-sealing processes, the shell edges need to be polished to remove them. Current technology typically uses a robotic arm to automatically polish the shell edges with a grinding tool. To ensure the robotic arm's movement path matches the shell edge, precise positioning of the shell is required. However, the positioning molds in existing deburring equipment are generally of fixed dimensions. Since different bag shell sizes and corner radii vary, the applicability of deburring equipment is limited, indirectly increasing manufacturing costs. Forcing the use of a mold with a mismatched corner radius for positioning can cause the shell to twist and deform, causing the robotic arm's movement path to deviate from the shell's edge contour, thus severely impacting the yield rate of bag production. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a processing tooling for bag shells that can improve equipment applicability and reduce production costs.

[0004] To achieve the above and other related objectives, the present invention provides a processing fixture for a bag shell, used to remove edge burrs from an injection-molded bag shell, wherein the injection-molded bag shell includes a top wall and a plurality of side walls connected to the top wall, and each adjacent side wall is provided with a rounded corner portion;

[0005] The machining fixture includes:

[0006] frame;

[0007] The active platform is movably connected to the rack along the first direction;

[0008] A positioning mold is installed on the movable platform. The positioning mold is used to fix the injection-molded bag shell. The positioning mold includes a corner block for fitting against the inner wall of the rounded corner portion. The corner block has multiple rounded corner surfaces with different radii on its circumferential surface. The corner block is rotatably arranged relative to the movable platform about an axis parallel to a second direction, so that any one of the rounded corner surfaces can fit against the inner wall of the rounded corner portion. The second direction is perpendicular to the first direction.

[0009] A robotic arm is suspended on a crossbeam, and the robotic arm is movably arranged relative to the crossbeam along a third direction. The crossbeam is fixed relative to the frame. The power output end of the robotic arm is equipped with a grinding tool. The third direction is perpendicular to both the first direction and the second direction.

[0010] In an optional embodiment of the present invention, the active platform is provided with a column, the corner block is rotatably connected to the column, and a locking mechanism is provided between the column and the corner block. The locking mechanism is configured to hold the corner block at multiple angles and to release the corner block from multiple angles.

[0011] In an optional embodiment of the present invention, the locking mechanism includes a square shaft portion provided on the column and a square groove provided on the corner block that is adapted to the square shaft portion. The corner block is movably connected to the column along the second direction so that the square shaft portion can be inserted into or separated from the square groove.

[0012] In an optional embodiment of the present invention, an elastic element is provided between the corner block and the column, and the elastic element is configured such that its elastic force can drive the corner block to move along the second direction so that the square shaft portion is inserted into the square groove.

[0013] In an optional embodiment of the present invention, the corner block includes a central body and a plurality of inserts spaced circumferentially along the central body. The inserts are detachably connected to the central body, and each rounded corner surface is respectively disposed on each insert.

[0014] In an optional embodiment of the present invention, the column is further provided with a suction cup assembly for supporting and adsorbing the top wall of the injection-molded box shell, and the suction cup assembly is connected to a negative pressure air source through a hose.

[0015] In an optional embodiment of the present invention, there are 4 corner blocks arranged in a rectangular array, and the spacing between any two adjacent corner blocks can be adjusted along a first direction or a third direction.

[0016] In an optional embodiment of the present invention, the active platform is provided with a first slide and a second slide that are movably arranged along a third direction, and a first driving component for driving the first slide and the second slide to open and close to each other; wherein two of the corner blocks and the columns thereon are installed on the first slide, and the other two corner blocks and the columns thereon are installed on the second slide.

[0017] In an optional embodiment of the present invention, a third slide is provided on the first slide, the third slide is movably disposed relative to the first slide along a first direction, and a second driving component is provided on the first slide for driving the third slide to move; one of the corner blocks and the column thereon are mounted on the third slide.

[0018] In an optional embodiment of the present invention, a fourth slide is provided on the second slide, the fourth slide being movably disposed relative to the second slide along a first direction, and a third driving component for driving the fourth slide to move is provided on the second slide; one of the corner blocks and the column thereon are mounted on the fourth slide.

[0019] The technical advantages of this invention are as follows: By employing a rotatable corner block and multi-radius rounded corner surface design, this invention fundamentally solves the problem of poor adaptability of positioning molds to bag shell specifications in the prior art. Specifically, multiple rounded corner surfaces with different radii are set on the circumference of the corner block, which can achieve precise fitting with the inner wall of bag shells with different rounded corner radii by rotating around the axis. This feature ensures that the shell will not be twisted or deformed due to mismatched rounded corners when fixed. On this basis, the movement of the movable platform along the first direction and the movement of the robotic arm along the third direction are coordinated, so that the grinding tool can always grind the edge of the shell along the accurate path. This structural design allows a single tooling to meet the processing needs of bag shells of various specifications, which not only significantly improves the positioning accuracy and processing consistency of the deburring process and greatly increases the yield rate, but also avoids production interruptions and cost increases caused by changing molds, effectively enhancing the versatility and economy of the equipment. Attached Figure Description

[0020] Figure 1 This is a perspective view of the injection-molded luggage shell provided in an embodiment of the present invention;

[0021] Figure 2 This is a front view of the machining fixture provided in an embodiment of the present invention;

[0022] Figure 3 This is a perspective view of the active platform and positioning mold provided in an embodiment of the present invention;

[0023] Figure 4 This is a perspective view of the active platform and positioning mold in use, provided in an embodiment of the present invention;

[0024] Figure 5 This is a perspective view of the corner block and its accessories provided in an embodiment of the present invention;

[0025] Figure 6 This is a top view of the corner block and its accessories provided in an embodiment of the present invention;

[0026] Figure 7 yes Figure 6 AA section view;

[0027] Figure 8 This is an exploded view of one perspective of the corner block and its accessories provided in an embodiment of the present invention;

[0028] Figure 9This is an exploded view of the corner block and its accessories provided in an embodiment of the present invention from another perspective;

[0029] Explanation of reference numerals in the attached drawings: 100, Injection-molded case shell; 101, Top wall; 102, Side wall; 103, Rounded corner; 10, Frame; 20, Movable platform; 21, First slide; 22, Second slide; 23, Third slide; 24, Fourth slide; 25, First drive assembly; 26, Second drive assembly; 27, Third drive assembly; 30, Positioning mold; 31, Corner block; 311, Center body; 312, Insert; 313, Rounded corner surface; 314, Square groove; 32, Column; 321, Square shaft; 33, Suction cup assembly; 34, Elastic element; 40, Robotic arm; 41, Grinding tool; 50, Crossbeam. Detailed Implementation

[0030] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0031] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0032] The processing fixture provided by this invention is used to remove edge burrs from the injection-molded case shell 100, such as... Figure 1 As shown, the injection-molded case housing 100 includes a top wall 101 and a plurality of side walls 102 connected to the top wall 101, and a rounded corner portion 103 is provided between each adjacent side wall 102.

[0033] Please see Figure 2-9As shown, the processing fixture includes a frame 10, a movable platform 20, a positioning mold 30, and a robotic arm 40; the movable platform 20 is movably connected to the frame 10 along a first direction; the positioning mold 30 is installed on the movable platform 20, and the positioning mold 30 is used to fix the injection-molded bag shell 100. The positioning mold 30 includes a corner block 31 for fitting against the inner wall of the rounded corner portion 103. The circumferential surface of the corner block 31 is provided with a plurality of rounded corner surfaces 313 with different radii. The corner block 31 is rotatably arranged relative to the movable platform 20 about an axis parallel to a second direction, so that any one of the rounded corner surfaces 313 can fit against the inner wall of the rounded corner portion 103; the second direction is perpendicular to the first direction. A robotic arm 40 is suspended on a crossbeam 50, and the robotic arm 40 is movably positioned relative to the crossbeam 50 along a third direction. The crossbeam 50 is fixed relative to the frame 10. A grinding tool 41 is provided at the power output end of the robotic arm 40. The third direction is perpendicular to both the first direction and the second direction. In a specific embodiment, the first direction and the third direction are horizontal, and the second direction is vertical. Specifically, the first direction is... Figure 2 The direction perpendicular to the paper is the third direction. Figure 2 The left and right directions, the second direction is Figure 2 The vertical direction. It should be noted that the robotic arm 40 of the present invention has multiple swing and rotational degrees of freedom. For example, the robotic arm 40 can rotate at least along the vertical axis and swing along the horizontal axis. In a specific embodiment, the robotic arm 40 may be, for example, a six-axis robotic arm.

[0034] This invention, by employing a rotatable corner block 31 and multi-radius rounded corner surfaces 313, fundamentally solves the problem of poor adaptability of the positioning mold 30 to the specifications of the bag shell in the prior art. Specifically, the multiple rounded corner surfaces 313 with different radii on the circumference of the corner block 31 can achieve precise fitting with the inner wall of the bag shell with different rounded corner radii by rotating around the axis. This feature ensures that the shell will not be twisted or deformed due to mismatched rounded corners when fixed. On this basis, the movement of the movable platform 20 along the first direction and the movement of the robotic arm 40 along the third direction are coordinated, so that the grinding tool 41 can always grind the edge of the shell along the accurate path. For example, during grinding... Figure 2 When the two injection-molded edges of the bag shell 100 are perpendicular to the paper surface, the position of the robotic arm 40 remains stationary, and then the movable platform 20 is controlled to move along the first direction; during grinding... Figure 2When machining the two parallel edges of the injection-molded bag shell 100, the movable platform 20 remains stationary, and the robotic arm 40 rotates 90° along the vertical axis before moving along a third direction. When grinding the rounded corners 103 of the injection-molded bag shell 100, the movable platform 20 moves along the first direction while the robotic arm 40 moves along the third direction. This structural design allows a single fixture to meet the processing needs of various bag shell specifications, significantly improving the positioning accuracy and processing consistency of the deburring process, greatly increasing the yield rate, and avoiding production interruptions and cost increases caused by mold changes, effectively enhancing the equipment's versatility and economy.

[0035] Please see Figure 5-9 As shown, in an optional embodiment of the present invention, the active platform 20 is provided with a column 32, the corner block 31 is rotatably connected to the column 32, and a locking mechanism is provided between the column 32 and the corner block 31. The locking mechanism is configured to hold the corner block 31 at multiple angles and to release the corner block 31 from multiple angles. This invention further enhances the ease of adjustment and operational reliability of the positioning mold 30 by setting a locking mechanism in synergy with the rotatable corner block 31. Specifically, the locking mechanism can precisely hold the corner block 31 at multiple predetermined angles that match the rounded corners of different sizes of bag shells, ensuring that the rounded corner surface 313 of a specific radius on the corner block 31 can stably fit against the inner wall of the rounded corner portion 103 of the shell, thereby effectively preventing positioning deviations caused by accidental rotation of the corner block 31 during the grinding process. At the same time, the mechanism can quickly release the corner block 31 to achieve flexible switching between different rounded corner surfaces 313. This feature significantly simplifies mold adjustment operations, reduces downtime for processing different sizes of shells, and greatly improves the production efficiency and flexible production capabilities of the equipment while enhancing positioning accuracy and processing stability.

[0036] Please see Figure 7 , 8As shown in Figure 9, in an optional embodiment of the present invention, the locking mechanism includes a square shaft portion 321 provided on the column 32 and a square groove 314 provided on the corner block 31 that is adapted to the square shaft portion 321. The corner block 31 is movably connected to the column 32 along the second direction so that the square shaft portion 321 can be inserted into or separated from the square groove 314. This invention achieves high efficiency and reliable positioning for the angle switching operation of the corner block 31 by employing a locking mechanism design that allows the square shaft portion 321 and the square groove 314 to engage and disengage. Specifically, when it is necessary to switch the rounded corner surface 313, the operator only needs to move the corner block 31 along the second direction to separate the square groove 314 from the square shaft portion 321 on the column 32, thereby releasing the lock and allowing the corner block 31 to rotate freely to the target angle. Subsequently, the operator moves the corner block 31 along the second direction again to re-insert the square shaft portion 321 into the square groove 314 to complete the locking. This engagement and disengagement mechanism not only ensures that the corner block 31 can withstand the grinding force during the grinding process through the rigid fit between the square shaft and the square groove 314, preventing angle deviation and ensuring stable contact between the rounded corner surface 313 and the inner wall of the housing, but also eliminates the need for complex tools through manual operation, significantly improving the convenience and efficiency of angle adjustment. This allows the equipment to quickly adapt to the production needs of different housing specifications, enhancing positioning accuracy while further optimizing the practicality and production efficiency of the tooling.

[0037] Please see Figure 5 , 7 As shown in Figures 8 and 9, in an optional embodiment of the present invention, an elastic element 34 is provided between the corner block 31 and the column 32. The elastic element 34 is configured such that its elastic force can drive the corner block 31 to move along the second direction so that the square shaft portion 321 is inserted into the square groove 314. This invention further optimizes the operational experience and positioning reliability of corner block 31 angle switching by introducing the synergistic effect of elastic element 34 and locking mechanism. The continuous elastic force provided by elastic element 34 ensures that corner block 31 always tends to move towards square shaft portion 321 along the second direction, thereby ensuring that the shaft portion 321 and square groove 314 can maintain automatic engagement and locking in the non-adjustment state. This effectively avoids accidental separation caused by vibration or external force during grinding and ensures the stability of the rounded corner surface 313 and the inner wall of the housing. When it is necessary to switch angles, the operator only needs to overcome the elastic force of elastic element 34 and pull corner block 31 along the second direction to separate square groove 314 from square shaft portion 321 and rotate it. After being released, corner block 31 will automatically reset and re-engage and lock under the elastic force. This design not only eliminates the cumbersome operation of traditional threaded locking methods, but also significantly improves adjustment efficiency and operational intuitiveness through the automatic reset function. While ensuring positioning accuracy, it further enhances the ease of use and production cycle of the equipment.

[0038] Please see Figure 5 , 6As shown in Figures 8 and 9, in an optional embodiment of the present invention, the corner block 31 includes a central body 311 and a plurality of inserts 312 arranged circumferentially along the central body 311. The inserts 312 are detachably connected to the central body 311, and each rounded corner surface 313 is respectively disposed on each insert 312. This invention, through the modular design of the central body 311 and detachable inserts 312, greatly enhances the flexibility and economy of the corner block 31. This structure disperses rounded corner surfaces 313 of different radii onto independent inserts 312, so that wear or damage to a single insert 312 does not require replacing the entire corner block 31, but only the specific insert 312 needs to be replaced, significantly reducing maintenance costs and downtime. Simultaneously, this design allows for flexible selection or replacement of inserts 312 with specific rounded corner radii according to actual production needs, further expanding the adaptability of the positioning mold 30, enabling it to handle more non-standard or future bag shell specifications. The detachable connection between the central body 311 and the inserts 312 ensures the overall structural strength after assembly, guarantees positioning stability during grinding, and provides users with a high degree of customization, fundamentally improving the versatility of the tooling.

[0039] Please see Figure 3 , 5 As shown in Figure 9, in an optional embodiment of the present invention, the column 32 is further provided with a suction cup assembly 33 for supporting and adsorbing the top wall 101 of the injection-molded box shell 100, and the suction cup assembly 33 is connected to a negative pressure air source through a hose. This invention integrates a suction cup assembly 33 with negative pressure adsorption on the column 32, constructing a composite fixing system that combines radial positioning of the corner block 31 with vertical adsorption of the suction cup. This significantly improves the overall stability of the bag shell during the polishing process. The suction cup assembly 33 firmly fixes the top wall 101 of the shell to the column 32 through negative pressure adsorption, effectively overcoming the vertical force and vibration generated by the grinding tool 41 when working on the edge, preventing the shell from shifting or warping. This vertical constraint, together with the radial positioning of the rounded corner 103 by the corner block 31 from the inside, ensures the complete fixation of the shell in three-dimensional space. This composite fixing strategy not only enhances the positioning reliability and makes the polishing path of the robotic arm 40 more precise, but also effectively reduces processing defects caused by shell vibration, thereby improving the product yield while further enhancing the processing accuracy and operational stability of the equipment.

[0040] Please see Figure 3As shown, in an optional embodiment of the present invention, there are four corner blocks 31 arranged in a rectangular array. The spacing between any two adjacent corner blocks 31 is adjustable along a first direction or a third direction. By arranging the four corner blocks 31 in a rectangular array with adjustable spacing, the present invention enables the positioning mold 30 to flexibly adapt to bag shells of different lengths and widths, greatly improving the versatility and positioning accuracy of the equipment. Specifically, by adjusting the spacing between adjacent corner blocks 31 along the first direction and the third direction, the rounded corner surface 313 on each corner block 31 can be precisely fitted to the four rounded inner walls of shells of different sizes. This adjustable layout ensures precise wrapping positioning of shells of various specifications, avoiding positioning instability or shell vibration caused by excessive spacing, and preventing assembly interference or shell deformation caused by insufficient spacing. This fundamentally ensures the high consistency between the grinding path of the robotic arm 40 and the edge contour of the shell, significantly improving the yield rate of the deburring process. At the same time, a single tooling can cover the production of multiple specifications, effectively reducing mold costs and changeover time.

[0041] Please see Figure 3 As shown, in an optional embodiment of the present invention, the active platform 20 is provided with a first slide 21 and a second slide 22 movably disposed along a third direction, and a first drive assembly 25 for driving the first slide 21 and the second slide 22 to open and close to each other; wherein two corner blocks 31 and their respective pillars 32 are mounted on the first slide 21, and the other two corner blocks 31 and their respective pillars 32 are mounted on the second slide 22; a third slide 23 is provided on the first slide 21, the third slide 23 being movably disposed relative to the first slide 21 along a first direction, and a second drive assembly 26 for driving the third slide 23 to move is provided on the first slide 21; one corner block 31 and its respective pillar 32 are mounted on the third slide 23; a fourth slide 24 is provided on the second slide 22, the fourth slide 24 being movably disposed relative to the second slide 22 along a first direction, and a third drive assembly 27 for driving the fourth slide 24 to move is provided on the second slide 22; one corner block 31 and its respective pillar 32 are mounted on the fourth slide 24. In a specific embodiment, the first drive assembly 25 may be a bidirectional lead screw and nut mechanism, that is, the lead screw has two sections of threads with opposite directions of rotation, so as to drive the first slide 21 and the second slide 22 to open and close synchronously. The second drive assembly 26 and the third drive assembly 27 may be lead screw and nut mechanisms with a single direction of rotation.

[0042] In summary, this invention, by employing a rotatable corner block 31 and a multi-radius rounded corner surface 313, fundamentally solves the problem of poor adaptability of the positioning mold 30 to the specifications of the bag shell in the prior art. Specifically, the multiple rounded corner surfaces 313 with different radii on the circumference of the corner block 31 can achieve precise fitting with the inner wall of the bag shell with different rounded corner radii by rotating around the axis. This feature ensures that the shell will not be twisted or deformed due to mismatched rounded corners when fixed. On this basis, the movement of the movable platform 20 along the first direction and the movement of the robotic arm 40 along the third direction are coordinated, so that the grinding tool 41 can always grind the edge of the shell along the accurate path. This structural design allows a single tooling to meet the processing needs of bag shells of various specifications, which not only significantly improves the positioning accuracy and processing consistency of the deburring process and greatly increases the yield rate, but also avoids production interruption and cost increase caused by changing molds, effectively enhancing the versatility and economy of the equipment.

[0043] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

[0044] Throughout this description, numerous specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the invention. However, those skilled in the art will recognize that embodiments of the invention may be practiced without one or more of these specific details or by other devices, systems, components, methods, parts, materials, components, etc. In other instances, well-known structures, materials, or operations have not been specifically shown or described in detail to avoid obscuring aspects of embodiments of the invention.

Claims

1. A machining tooling for the shell of a bag or luggage, characterized in that, For removing edge burrs from injection molded bag housing (100), the injection molded bag housing (100) includes a top wall (101) and a plurality of side walls (102) connected to the top wall (101), and a rounded corner (103) is provided between each adjacent side wall (102). The machining fixture includes: Rack (10); The active platform (20) is movably connected to the rack (10) along the first direction; A positioning mold (30) is installed on the movable platform (20). The positioning mold (30) is used to fix the injection-molded bag shell (100). The positioning mold (30) includes a corner block (31) for fitting against the inner wall of the rounded corner (103). The corner block (31) has a plurality of rounded corner surfaces (313) with different radii on its circumferential surface. The corner block (31) is rotatably arranged relative to the movable platform (20) about an axis parallel to a second direction, so that any one of the rounded corner surfaces (313) can fit against the inner wall of the rounded corner (103). The second direction is perpendicular to the first direction. A robotic arm (40) is suspended on a crossbeam (50), and the robotic arm (40) is movably arranged relative to the crossbeam (50) along a third direction. The crossbeam (50) is fixed relative to the frame (10). The power output end of the robotic arm (40) is provided with a grinding tool (41). The third direction is perpendicular to both the first direction and the second direction. The activity platform (20) is provided with a column (32), the corner block (31) is rotatably connected to the column (32), and a locking mechanism is provided between the column (32) and the corner block (31). The locking mechanism is configured to hold the corner block (31) at multiple angles and to release the corner block (31) from multiple angles.

2. The machining tooling for bag shells according to claim 1, characterized in that, The locking mechanism includes a square shaft portion (321) provided on the column (32) and a square groove (314) provided on the corner block (31) that is adapted to the square shaft portion (321). The corner block (31) is movably connected to the column (32) along the second direction so that the square shaft portion (321) can be inserted into or separated from the square groove (314).

3. The machining tooling for bag shells according to claim 2, characterized in that, An elastic element (34) is provided between the corner block (31) and the column (32). The elastic element (34) is configured such that its elastic force can drive the corner block (31) to move along the second direction so that the square shaft portion (321) is inserted into the square groove (314).

4. The machining tooling for bag shells according to claim 3, characterized in that, The corner block (31) includes a central body (311) and a plurality of inserts (312) arranged circumferentially along the central body (311). The inserts (312) are detachably connected to the central body (311), and each rounded corner surface (313) is respectively disposed on each insert (312).

5. The machining tooling for bag shells according to claim 1, characterized in that, The column (32) is also provided with a suction cup assembly (33) for supporting and adsorbing the top wall (101) of the injection-molded box shell (100), and the suction cup assembly (33) is connected to a negative pressure air source through a hose.

6. The machining tooling for bag shells according to claim 1, characterized in that, There are 4 corner blocks (31), and the 4 corner blocks (31) are arranged in a rectangular array. The spacing between any two adjacent corner blocks (31) can be adjusted along the first direction or the third direction.

7. The machining tooling for bag shells according to claim 6, characterized in that, The activity platform (20) is provided with a first slide (21) and a second slide (22) that are movably arranged in a third direction, and a first drive assembly (25) for driving the first slide (21) and the second slide (22) to open and close to each other; wherein two corner blocks (31) and the column (32) thereon are installed on the first slide (21), and the other two corner blocks (31) and the column (32) thereon are installed on the second slide (22).

8. The machining tooling for bag shells according to claim 7, characterized in that, The first slide (21) is provided with a third slide (23), the third slide (23) is movably arranged relative to the first slide (21) along a first direction, and the first slide (21) is provided with a second drive assembly (26) for driving the third slide (23) to move; one of the corner blocks (31) and its column (32) are installed on the third slide (23).

9. The machining tooling for bag shells according to claim 7, characterized in that, The second slide (22) is provided with a fourth slide (24), which is movably disposed relative to the second slide (22) along a first direction. The second slide (22) is provided with a third drive assembly (27) for driving the fourth slide (24) to move. One of the corner blocks (31) and its column (32) are installed on the fourth slide (24).

Images