Hand press assembly

Abstract

The utility model discloses a hand press assembly, which belongs to the technical field of hand presses and comprises a workbench, and a limit block is arranged at the top of the workbench. The pressing table is movably arranged above the workbench, the projection of the pressing table in the height direction is spaced from the limiting block, and the pressing table is provided with a fixing groove; the positioning mechanism is movably arranged at the top of the workbench, the positioning mechanism is provided with a movable fixing part suitable for fixing a workpiece to be stamped, and the positioning mechanism moves to selectively abut against the limiting block; the end, facing the pressing table, of the stamping tool is provided with a connecting part, and the connecting part is contained in the fixing groove so that the stamping tool and the pressing table can be fixed. According to the design of the hand press assembly, the positioning mechanism and the limiting block, it is guaranteed that the hand press assembly can accurately act on the preset position of the workpiece to be stamped every time, consistency and quality of finished products are improved, the assembling, disassembling and adjusting processes of the workpiece are simplified, non-production time is shortened, and overall production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hand press machine technical field, concretely relates to hand press machine assembly. BACKGROUND

[0002] In the related art, hand press machine is a kind of mechanical equipment widely used in manufacturing and processing industry, mainly used for stamping forming to metal, plastic and other materials.Hand press machine includes workbench and pressing station, and staff places the workpiece to be punched on workbench, then controls pressing station to move towards workbench to realize stamping processing, and in the prior art, when the specified position of workpiece to be punched is stamped, staff needs to spend a lot of time to adjust the position of workpiece to be punched, resulting in low processing efficiency. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art is solved.For this purpose, one purpose of the utility model is to provide a kind of hand press machine assembly.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] The utility model provides hand press machine assembly, comprising: workbench, the top of the workbench is provided with limiting block;Pressing station, the pressing station is movably arranged above the workbench, the pressing station is selectively moved in height direction towards or away from workbench, the projection of the pressing station in height direction is spaced apart from the limiting block, and the side of the pressing station towards the workbench is provided with fixed slot;Positioning mechanism, the positioning mechanism is movably arranged on the top of the workbench, the positioning mechanism is provided with movable and suitable for fixed workpiece to be punched fixed part, and the positioning mechanism moves to selectively abut with limiting block;Punching tool, the one end of the punching tool towards the pressing station is provided with connecting part, and the connecting part is housed in the fixed slot to fix the punching tool with the pressing station.

[0006] According to the hand press machine assembly of the utility model, the design of positioning mechanism and limiting block ensures that each stamping can accurately act on the predetermined position of workpiece to be punched, improves the consistency and quality of finished product, and simplifies the loading and unloading and adjustment process of workpiece, reduces non-production time, improves overall production efficiency, of course, flexible positioning mechanism and replaceable punching tool make hand press machine can process various sizes and shapes of workpiece, expand the application range of hand press machine, at the same time, the quick disassembly and assembly design of punching tool is convenient for daily maintenance and tool replacement, prolongs the service life of equipment.

[0007] Further, the punch cutter is provided with a rotatable connecting column on one side of the pressing table, the connecting column is configured as the fixed part, the outer peripheral wall of the connecting column is provided with a first thread, and the inner peripheral wall of the fixed groove is provided with a second thread matched with the first thread.

[0008] Further, the outer peripheral wall of the punch cutter is provided with a positioning column extending towards the pressing table, the pressing table is provided with a positioning hole suitable for accommodating the positioning column, and the positioning column is accommodated in the positioning hole to position the punch cutter in the circumferential direction relative to the pressing table.

[0009] Further, the positioning mechanism comprises: a moving plate movably arranged on the top of the workbench, the moving plate is selectively movable in the length direction towards or away from the limiting block; a first fixed plate movably arranged on one side of the moving plate in the width direction; a second fixed plate movably arranged on the other side of the moving plate in the width direction; wherein the first fixed plate and the second fixed plate are respectively selectively movable in the length direction relative to the moving table.

[0010] Further, the moving plate comprises: a plate body, the plate body is movably connected with the workbench; a first connecting plate connected to one side of the plate body towards the stop block; a second connecting plate connected to one side of the plate body towards the stop block; wherein the first connecting plate and the second connecting plate are spaced apart in the width direction, the first connecting plate is movably connected with the first fixed plate, and the second connecting plate is movably connected with the second fixed plate.

[0011] Further, the first connecting plate is provided with a first sliding groove penetrating in the width direction, one side of the first fixed plate away from the second fixed plate is connected with a rotatable sliding rod, and the sliding rod is movably arranged in the first sliding groove; wherein the positioning mechanism further comprises: a movable plate movably arranged on one side of the first connecting plate away from the first fixed plate, the movable plate is suitable for moving in the length direction, the movable plate is provided with a connecting hole penetrating in the width direction, the inner peripheral wall of the connecting hole is provided with a third thread, the sliding rod is movably arranged in the connecting hole, and the outer peripheral wall of the sliding rod is provided with a fourth thread matched with the third thread.

[0012] Further, one side of the second fixed plate towards the first fixed plate is provided with two movable baffles, and the two baffles are respectively selectively movable in the length direction relative to the second fixed plate.

[0013] Further, the second fixed plate is provided with a mounting hole, a rotating rod is rotatably arranged in the mounting hole, the second fixed plate is provided with a moving groove which is open towards the first fixed plate and communicates with the mounting hole; wherein a fifth thread and a sixth thread are arranged on the outer circumferential wall of the rotating rod, the fifth thread and the sixth thread are opposite in rotation direction, at least part of the two baffles are respectively accommodated in the mounting hole and movably sleeved on the outer circumferential wall of the rotating rod, and the two baffles are respectively matched with the fifth thread and the sixth thread.

[0014] Further, the plate body is provided with a push-pull handle at one end away from the limiting block.

[0015] The other advantages, objects and features of the present application will be clarified in the following description, and are apparent to those skilled in the art to some extent, or can be taught by those skilled in the art from the practice of the present application. The objects and other advantages of the present application can be realized and obtained by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to make the objects, technical solutions and advantages of the present application clearer, the present application provides the following drawings for description:

[0017] Fig. 1 It is a cooperation schematic view of the workbench, the limiting block and the positioning mechanism of the present application;

[0018] Fig. 2 It is a cooperation sectional view of the pressing table and the stamping tool of the present application;

[0019] Fig. 3 It is a cooperation sectional view of the second fixed plate and the two baffles of the present application.

[0020] The marks in the drawings are as follows:

[0021] 10, workbench; 11, limiting block;

[0022] 20, pressing table;

[0023] 31, moving plate; 311, plate body; 312, first connecting plate; 313, second connecting plate; 32, first fixed plate; 321, sliding rod; 33, second fixed plate; 331, moving groove; 34, movable plate; 35, baffle; 351, third sliding block; 36, push-pull handle; 37, rotating rod;

[0024] 40, stamping tool; 41, connecting column; 42, positioning column. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the embodiment and drawings. The schematic embodiment and its description are only used for explaining the utility model, and not as a limitation to the utility model.

[0026] In the following description, numerous specific details are set forth to provide a thorough understanding of the present utility model. However, it will be apparent to one of ordinary skill in the art that the present utility model can be practiced without these specific details. In other instances, well-known structures, circuits, materials or processes have not been described in detail in order to avoid obscuring the present utility model.

[0027] In the entire description, the mention of "one embodiment", "an embodiment", "one example" or "an example" means that the specific feature, structure or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Therefore, the phrases "one embodiment", "an embodiment", "one example" or "an example" appearing in various places throughout the description are not necessarily all referring to the same embodiment or example. In addition, specific features, structures or characteristics can be combined in any appropriate combination and / or subcombination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the associated listed items.

[0028] In the description of the present utility model, it should be understood that the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the scope of protection of the present utility model.

[0029] Embodiment one:

[0030] As Figs. 1-3As shown, the utility model provides a hand press assembly, include: workbench 10, press tightly platform 20, positioning mechanism and punch tool 40, the top of workbench 10 is provided with limit block 11, press tightly platform 20 is movably arranged in the top of workbench 10, press tightly platform 20 is selectively moved in height direction towards or away from workbench 10, the projection of press tightly platform 20 in height direction is spaced from limit block 11, the side of press tightly platform 20 towards workbench 10 is provided with fixed groove, positioning mechanism is movably arranged in the top of workbench 10, positioning mechanism is provided with movable and suitable for the fixed part of fixed workpiece to be punched, positioning mechanism moves to selectively with limit block 11 stop, punch tool 40 is provided with connecting part in one end towards press tightly platform 20, and connecting part is housed in fixed groove to with punch tool 40 and press tightly platform 20 fixed.

[0031] In some embodiments, the top of workbench 10 is provided with limit block 11, the role of limit block 11 is to provide a physical stop point for positioning mechanism, when positioning mechanism moves to stop with limit block 11, workpiece to be punched is in a preset position, at this time, press tightly platform 20 moves to realize the processing of workpiece to be punched.

[0032] Press tightly platform 20 can move up and down in height direction to perform stamping operation, the projection of press tightly platform 20 in height direction is spaced from limit block 11, that is, when press tightly platform 20 moves to the bottom end of workbench 10, press tightly platform 20 still does not directly contact limit block 11, but maintains a certain distance, avoiding the influence of limit block 11 on the work of press tightly platform 20. The side of press tightly platform 20 towards workbench 10 is provided with fixed groove, and the fixed groove is used to connect punch tool 40, to ensure that punch tool 40 maintains a fixed position during stamping process.

[0033] Positioning mechanism is movably arranged in the top of workbench 10, positioning mechanism can slide on workbench 10 to adjust the position of workpiece to be punched, and positioning mechanism is further provided with movable and suitable for the fixed part of fixed workpiece to be punched, the fixed part is adjusted to realize the adjustment of the position of workpiece to be punched relative to positioning mechanism, when positioning mechanism moves to stop with limit block 11, press tightly platform 20 moves towards workbench 10 to realize the processing of specific position of workpiece to be punched.

[0034] Punch tool 40 is provided with connecting part in one end towards press tightly platform 20, and the connecting part is housed in fixed groove of press tightly platform 20 to realize the firm connection of punch tool 40 and press tightly platform 20, and the mounting and dismounting mode of punch tool 40 is simple, so that workers can quickly replace punch tool 40 according to needs, to improve processing efficiency.

[0035] It can be understood that the positioning part is selectively moved towards or away from the stop block to adjust the relative position of the workpiece to be punched fixed by the positioning part, that is, the position of the workpiece to be punched relative to the positioning mechanism can be adjusted by adjusting the position of the positioning part, and then the entire positioning mechanism is moved to stop against the limit block 11, at this time, the operator can start the hand press table, and the hand press table operation can move the pressing block in the height direction towards the body of the workbench 10, and the pressing block moves to drive the punching tool 40 to move towards the workpiece to be punched and is suitable for machining the workpiece to be punched.

[0036] It is worth mentioning that since the relative position of the positioning part can be adjusted or fixed, after the positioning part position is adjusted, the operator only needs to fix the workpiece to be punched on the fixed part, and then only needs to move the fixed mechanism to stop against the stop block, so as to realize machining of the specified position of the workpiece to be punched, avoiding the operator spending a lot of time adjusting the relative position of the workpiece to be punched, and improving the machining efficiency of the workpiece to be punched.

[0037] According to the hand press assembly of the utility model, the design of the positioning mechanism and the limit block 11 ensures that each punching can accurately act on the predetermined position of the workpiece to be punched, improves the consistency and quality of the finished product, and simplifies the loading and unloading and adjustment process of the workpiece, reduces the non-production time, and improves the overall production efficiency. Of course, the flexible positioning mechanism and the replaceable punching tool 40 enable the hand press to process workpieces of various sizes and shapes, expand the application range of the hand press, and at the same time, the quick disassembly and assembly design of the punching tool 40 facilitates daily maintenance and tool replacement, prolongs the service life of the equipment.

[0038] Embodiment two:

[0039] In this embodiment, the punching tool 40 towards one side of the pressing table 20 is provided with a rotatable connecting column 41, the connecting column 41 is configured as a fixed part, the outer peripheral wall of the connecting column 41 is provided with a first screw thread, and the inner peripheral wall of the fixed groove is provided with a second screw thread matched with the first screw thread.

[0040] In some embodiments, the punching tool 40 towards one side of the pressing table 20 is provided with a rotatable connecting column 41, the connecting column 41 is configured as a fixed part, the outer peripheral wall of the connecting column 41 is provided with a first screw thread, and the inner peripheral wall of the fixed groove on the pressing table 20 is provided with a second screw thread matched with the first screw thread.

[0041] It can be understood that the firm connection of the stamping tool 40 and the pressing table 20 can be realized through the cooperation of the first thread and the second thread between the connecting column 41 and the fixing groove, and the staff only needs to rotate the connecting column 41 to install or disassemble the stamping tool 40. The above connection mode not only provides stable fixation, but also facilitates quick replacement of different stamping tools 40.

[0042] It is worth mentioning that, since the thread has a self-locking characteristic, when the connecting column 41 is tightened, it can be ensured that the position of the stamping tool 40 will not be loose, thereby improving the precision of the stamping operation, and moreover, the threaded connection allows the operator to make fine adjustment during the installation process, ensuring that the stamping tool 40 is perfectly aligned with the pressing table 20, avoiding stamping errors caused by positional deviation.

[0043] According to some embodiments of the present application, the outer peripheral wall of the stamping tool 40 is provided with a positioning column 42 extending towards the pressing table 20, and the pressing table 20 is provided with a positioning hole suitable for accommodating the positioning column 42, and the positioning column 42 is accommodated in the positioning hole to position the stamping tool 40 in the circumferential direction relative to the pressing table 20.

[0044] In some embodiments, the outer peripheral wall of the stamping tool 40 is provided with a positioning column 42 extending towards the pressing table 20, and the pressing table 20 is provided with a positioning hole suitable for accommodating the positioning column 42, and when the positioning column 42 is inserted into the positioning hole, the stamping tool 40 can be fixed in the circumferential direction relative to the pressing table 20, preventing the stamping tool 40 from rotating or deviating relative to the pressing table 20.

[0045] It can be understood that the design of the positioning column 42 and the positioning hole provides a mechanical alignment function, ensuring that the stamping tool 40 can be accurately positioned at the predetermined position when installed, avoiding stamping errors caused by angle deviation, and moreover, by inserting the positioning column 42 into the positioning hole, the stamping tool 40 can be effectively prevented from rotating during the stamping process, ensuring the stability and precision of the stamping operation. Of course, the design of the positioning column 42 and the positioning hole makes the installation of the stamping tool 40 more intuitive and simple, and the operator only needs to align the positioning column 42 with the positioning hole and insert it to complete the preliminary positioning, and then fix it finally through the threaded connection.

[0046] Therefore, the cooperation of the positioning column 42 and the positioning hole ensures that the punching tool 40 can return to the same position every time it is installed, improves the consistency of the punching operation and the quality of the finished product, and can prevent the punching tool 40 from rotating or deviating during the punching process, thereby enhancing the stability of the entire system, reducing the rate of defective products caused by tool displacement, and of course, the above-mentioned setting also simplifies the installation and disassembly process of the punching tool 40, reduces the operation time and complexity, and improves the work efficiency. At the same time, even if different types of punching tools 40 need to be frequently replaced, the design of the positioning column 42 and the positioning hole can quickly achieve precise alignment, enhancing the versatility and flexibility of the hand press table. In particular, the stable positioning mechanism reduces the risk of accidental loosening or deviation of the punching tool 40, protecting the work safety of the operator.

[0047] Embodiment Three:

[0048] This embodiment is based on Embodiment Two, and the positioning mechanism includes a moving plate 31, a first fixed plate 32, and a second fixed plate 33. The moving plate 31 is movably arranged on the top of the workbench 10 and can be selectively moved towards or away from the limiting block 11 in the length direction. The first fixed plate 32 is movably arranged on one side of the moving plate 31 in the width direction, and the second fixed plate 33 is movably arranged on the other side of the moving plate 31 in the width direction. The first fixed plate 32 and the second fixed plate 33 can be selectively moved relative to the workbench in the length direction.

[0049] In some embodiments, the moving plate 31 is a plate that can slide along the top of the workbench 10 body. The moving plate 31 is provided with a working space that is open in the height direction and towards the stop block, i.e., the moving plate 31 provides an open working space that is open in the height direction and towards the stop block, so that the workpiece to be punched can be placed from above, and the workpiece to be punched can be conveniently adjusted. The first fixed plate 32 and the second fixed plate 33 are located on the two side walls of the working space in the width direction, and the first fixed plate 32 and the second fixed plate 33 can move in the width direction. In addition, the first fixed plate 32 and the second fixed plate 33 can also be selectively moved relative to the working space in the length direction to adjust the position of the workpiece to be punched relative to the working space.

[0050] According to some embodiments of the present application, the moving plate 31 comprises: a plate body 311, a first connecting plate 312 and a second connecting plate 313, the plate body 311 is movably connected with the workbench 10, the first connecting plate 312 is connected to one side of the plate body 311 facing the stop block, and the second connecting plate 313 is connected to one side of the plate body 311 facing the stop block; wherein the first connecting plate 312 and the second connecting plate 313 are spaced apart in the width direction, the first connecting plate 312 is movably connected with the first fixed plate 32, and the second connecting plate 313 is movably connected with the second fixed plate 33.

[0051] In some embodiments, the plate body 311, the first connecting plate 312 and the second connecting plate 313 together define a working space open towards the stop block, and when the positioning mechanism is stopped by the stop block, one end of the first connecting plate 312 and the second connecting plate 313 away from the plate body 311 is stopped by the stop block. The top of the workbench 10 body is provided with a second sliding groove extending in the length direction, and the bottom of the plate body 311 is provided with a second sliding block movably arranged in the second sliding groove.

[0052] Embodiment four:

[0053] On the basis of embodiment three, the first connecting plate 312 is provided with a first sliding groove extending in the width direction, the first fixed plate 32 is connected with a rotatable sliding rod 321 on the side away from the second fixed plate 33, and the sliding rod 321 is movably arranged in the first sliding groove; wherein the positioning mechanism further comprises: a movable plate 34 movably arranged on the side of the first connecting plate 312 away from the first fixed plate 32, the movable plate 34 is adapted to move in the length direction, the movable plate 34 is provided with a connecting hole extending in the width direction, the inner circumferential wall of the connecting hole is provided with a third thread, and the sliding rod 321 is movably arranged in the connecting hole and the outer circumferential wall of the sliding rod 321 is provided with a fourth thread matched with the third thread.

[0054] It can be understood that the inner circumferential wall of the first sliding groove can limit the outer circumferential wall of the sliding rod 321, so that the sliding rod 321 can stably move along the extension direction of the first sliding groove, and thus the first fixed plate 32 can stably move relative to the first connecting plate 312 in the length direction.

[0055] The movable plate 34 is a movable component, and the movable plate 34 is installed on the side of the first connecting plate 312 away from the first fixed plate 32. The movable plate 34 can move in the length direction to adjust the position of the first fixed plate 32 relative to the first connecting plate 312 in the length direction. The movable plate 34 is provided with a connecting hole penetrating in the width direction, and the inner peripheral wall of the connecting hole is provided with a third thread, and the outer peripheral wall of the slide rod 321 is provided with a fourth thread matched with the third thread, so that the slide rod 321 can pass through the connecting hole and be screwed. By rotating the slide rod 321, the relative position of the first fixed plate 32 in the width direction can be adjusted, that is, by rotating the slide rod 321, the movement of the first fixed plate 32 towards the second fixed plate 33 can be controlled to realize the cooperation of the first fixed plate 32 and the second fixed plate 33 to fix the workpiece to be punched.

[0056] According to some embodiments of the present application, the side of the second fixed plate 33 facing the first fixed plate 32 is provided with two movable baffles 35, and the two baffles 35 are selectively movable relative to the second fixed plate 33 in the length direction.

[0057] In some embodiments, the two baffles 35 are respectively movable relative to the second fixed plate 33 in the length direction, and the two baffles 35 and the second fixed plate 33 abut one end and both sides of the workpiece to be punched (the two baffles 35 and the second fixed plate 33 can define a limiting groove, and at least part of the end of the workpiece to be punched can be accommodated in the limiting groove), thereby limiting the workpiece to be punched, avoiding the workpiece to be punched from shifting during processing, and improving the processing quality.

[0058] According to some embodiments of the present application, the second fixed plate 33 is provided with a mounting hole, and a rotating rod 37 is rotatably arranged in the mounting hole. The second fixed plate 33 is provided with a moving groove 331 which is open towards the first fixed plate 32 and communicates with the mounting hole. The outer peripheral wall of the rotating rod 37 is provided with a fifth thread and a sixth thread, the rotation directions of the fifth thread and the sixth thread are opposite, at least part of the two baffles 35 is respectively accommodated in the mounting hole and movably sleeved on the outer periphery of the rotating rod 37, and the two baffles 35 are respectively matched with the fifth thread and the sixth thread.

[0059] In some embodiments, the baffle 35 is provided with a third sliding block 351, the third sliding block 351 is movably accommodated in the moving groove 331, and at least part of the third sliding block 351 extends into the mounting hole. The third sliding block 351 is provided with a matching hole penetrating in the length direction, and the baffle 35 is movably sleeved on the outer periphery of the rotating rod 37 through the matching hole. The inner peripheral wall of the matching hole of one of the baffles 35 is provided with a seventh thread matched with the fifth thread, and the inner peripheral wall of the matching hole of the other baffle 35 is provided with an eighth thread matched with the sixth thread.

[0060] It is worth mentioning that at least one end of the rotating rod 37 extends to the outside of the mounting hole, and the worker can rotate the rotating rod 37 to realize the control of the two baffles 35 moving towards or away from each other at the same time, thereby realizing the clamping of the workpiece to be punched, improving the fixing efficiency of the workpiece to be punched, and thereby improving the processing efficiency of the workpiece to be punched.

[0061] According to some embodiments of the present application, the plate body 311 is provided with a push-pull handle 36 away from one end of the limiting block 11. It can be understood that the worker can drive the positioning mechanism to move towards or away from the limiting block 11 through the push-pull handle 36, thereby improving the operation convenience of the positioning mechanism, and thereby improving the processing efficiency of the workpiece to be punched.

[0062] Finally, it is pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. A hand press assembly, characterized in that, include: A workbench, wherein a limit block is provided on the top of the workbench; A clamping table is movably disposed above the worktable. The clamping table can be selectively moved toward or away from the worktable in the height direction. The projection of the clamping table in the height direction is spaced apart from the limiting block. A fixing groove is provided on the side of the clamping table facing the worktable. A positioning mechanism is movably disposed on the top of the worktable. The positioning mechanism is provided with a movable fixing part adapted to fix the workpiece to be stamped. The positioning mechanism can be moved to selectively abut against a limiting block. A stamping cutter, wherein one end of the stamping cutter facing the pressing table is provided with a connecting part, the connecting part being received in the fixing groove to fix the stamping cutter to the pressing table.

2. The hand press assembly according to claim 1, characterized in that, The stamping tool is provided with a rotatable connecting column on the side facing the pressing table. The connecting column is constructed as the fixing part. The outer peripheral wall of the connecting column is provided with a first thread, and the inner peripheral wall of the fixing groove is provided with a second thread that mates with the first thread.

3. The hand press assembly according to claim 2, characterized in that, The outer peripheral wall of the stamping cutter is provided with a positioning post extending toward the pressing table. The pressing table is provided with a positioning hole suitable for receiving the positioning post. The positioning post is received in the positioning hole to position the stamping cutter relative to the pressing table in the circumferential direction.

4. The hand press assembly according to claim 1, characterized in that, The positioning mechanism includes: A movable plate, which is movably disposed on the top of the worktable, is selectively movable toward or away from the limiting block in the length direction; A first fixing plate is movably disposed on one side of the movable plate in the width direction; A second fixing plate is movably disposed on the other side of the movable plate in the width direction; wherein The first fixed plate and the second fixed plate can be selectively moved relative to the moving stage in the length direction.

5. The hand press assembly according to claim 4, characterized in that, The movable plate includes: The plate body is movably connected to the worktable; A first connecting plate is connected to the side of the plate body facing the stop block; The second connecting plate is connected to the side of the plate body facing the stop block; wherein The first connecting plate and the second connecting plate are spaced apart in the width direction. The first connecting plate is movably connected to the first fixed plate, and the second connecting plate is movably connected to the second fixed plate.

6. The hand press assembly according to claim 5, characterized in that, The first connecting plate is provided with a first sliding groove that extends through the width direction, and a rotatable sliding rod is connected to the side of the first fixing plate opposite to the second fixing plate. The sliding rod is movably disposed in the first sliding groove. in The positioning mechanism also includes: A movable plate is movably disposed on the side of the first connecting plate opposite to the first fixed plate. The movable plate is adapted to move in the length direction. The movable plate is provided with a connecting hole that passes through in the width direction. The inner peripheral wall of the connecting hole is provided with a third thread. The slide rod is movably inserted into the connecting hole and the outer peripheral wall of the slide rod is provided with a fourth thread that mates with the third thread.

7. The hand press assembly according to claim 6, characterized in that, The second fixing plate has two movable baffles on the side facing the first fixing plate, and the two baffles can be selectively moved relative to the second fixing plate in the length direction.

8. The hand press assembly according to claim 7, characterized in that, The second fixing plate has a mounting hole, and a rotating rod is rotatably mounted in the mounting hole. The second fixing plate also has a moving groove that opens toward the first fixing plate and communicates with the mounting hole. The outer peripheral wall of the rotating rod is provided with a fifth thread and a sixth thread, the fifth thread and the sixth thread have opposite directions of rotation, at least a portion of the two baffles are respectively received in the mounting hole and movably sleeved on the outer periphery of the rotating rod, and the two baffles are respectively adapted to the fifth thread and the sixth thread.

9. The hand press assembly according to claim 5, characterized in that, A push-pull handle is provided at the end of the plate body away from the limiting block.

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