A lettering tool

Abstract

The present invention belongs to the field of machining equipment, and in particular, relates to a lettering tool. It comprises: a base, a seat plate is provided on the base, the seat plate is fixedly connected to the base, a linear rail is provided on the front end surface, the track guide direction of the linear rail is parallel to the upper end surface of the base, a character mold fixing part is also provided at the front end of the seat plate, a slider is provided at the rear end of the character mold fixing part to cooperate with the linear rail, and the slider is arranged in cooperation with the linear rail, and the character mold fixing part is provided with power by a hydraulic device to translate along the linear rail; the front end of the character mold fixing part is detachably fixed with a character mold assembly for embossing lettering; the base is also provided with at least two vertical shafts for abutting and supporting the workpiece, and the vertical shafts are arranged at the front end of the seat plate. The present invention has good adaptability to the workpiece, and can be applied to lettering processing of workpieces of different shapes and sizes; the lettering angle and height can be adjusted conveniently and efficiently; the mold used for lettering can be easily replaced and the overall device structure has high stability.

Description

Technical Field

[0001] The invention belongs to the field of machining equipment, and in particular relates to a lettering tool. Background Art

[0002] Workpiece engraving is a very common processing method. Most of the existing engraving processes are processed by laser marking, which has the advantages of convenient angle and height adjustment and strong adaptability to workpieces. However, the existing laser marking depth is not enough and it is easy to disappear in the subsequent process, resulting in poor traceability of parts. Mechanical engraving has problems such as poor adaptability to workpieces, difficulty in engraving, and difficulty in adjustment. Summary of the invention

[0003] In order to solve the problems of poor adaptability to workpieces, great difficulty in engraving and difficulty in adjustment in existing mechanical engraving equipment, the present invention provides an engraving tool.

[0004] The objects of the present invention are:

[0005] 1. Improve the adaptability to the shape and size of the workpiece;

[0006] 2. The angle and height of the engraving process are easy to adjust;

[0007] 3. The engraving mold is easy to adjust and replace.

[0008] A lettering tool, comprising:

[0009] The base is provided with a seat plate, which is fixedly connected to the base and has a linear rail on its front end surface. The track guide direction of the linear rail is parallel to the upper end surface of the base. A font fixing piece is also provided at the front end of the seat plate. A slider is provided at the rear end of the font fixing piece to cooperate with the linear rail and is arranged in cooperation with the linear rail through the slider. The font fixing piece is powered by a hydraulic device to translate along the linear rail.

[0010] The front end of the character mold fixing piece is detachably fixed with a character mold component for embossing characters;

[0011] The base is also provided with at least two vertical shafts for abutting and supporting the workpiece, and the vertical shafts are arranged at the front end of the seat plate.

[0012] As a preference,

[0013] When three or more vertical shafts are provided, the vertical shafts are arranged in an arc shape on the base, and the opening end of the arc faces the seat plate;

[0014] When two vertical shafts are provided, the connecting line of the two vertical shafts is parallel to the track guiding direction of the linear rail.

[0015] As a preference,

[0016] The character mold assembly includes an angle block and a character module, and the angle block is provided with an angle adjustment surface;

[0017] The character mold fixing piece is provided with a vertical groove perpendicular to the base. The angle block and the character mold fixing piece are detachably fixed at the vertical groove position by bolts and nuts. The character module is also detachably fixed to the angle adjustment surface of the angle block by bolts and nuts.

[0018] As a preference,

[0019] The die assembly comprises a main body and an adjustable die combination structure, the die fixing part is provided with a vertical slot perpendicular to the base, the main body and the die fixing part are detachably fixed at the vertical slot position by bolts and nuts, two vertical plates are provided at the front end of the main body, the opposite surfaces of the vertical plates are parallel, an adjusting screw is provided between the vertical plates, both ends of the adjusting screw are fixed to the opposite surfaces of the vertical plates, and the axial direction of the adjusting screw is perpendicular to the opposite surfaces of the two vertical plates, and is parallel to the track guide direction of the linear rail;

[0020] The adjusting screw rod is provided with a character module or an adjustable character module combination structure.

[0021] As a preference,

[0022] The adjustable mold assembly structure includes a replaceable mold and a mold seat;

[0023] The die base includes a main body base, a pressure plate and a latch. The main body base is sleeved on the adjusting screw and can rotate relative to the axis of the adjusting screw. The front end surface of the main body base is provided with a clamping structure arranged around the edge of the front end surface of the main body base and opened on one side, so as to realize the clamping fit between the clamping structure and the replaceable die.

[0024] The pressing plate is arranged on the opening side of the clamping structure to close the opening part of the clamping structure and abut against the side of the replaceable character mold on this side. The pressing plate also extends backward to contact the main body seat and is connected to the main body seat through a latch.

[0025] As a preference,

[0026] The clamping structure clamps the replaceable mold by wrapping around the edge of the front end surface of the replaceable mold, or by providing a clamping groove that matches the clamping structure on the side of the replaceable mold to realize the clamping of the clamping structure and the replaceable mold.

[0027] As a preference,

[0028] The latch comprises a pull ring at the outer end, a pin rod in the middle section and a clamping rod at the inner end, the clamping rod and the pin rod are arranged at an angle, and a first pin hole and a second pin hole are respectively provided on the pressure plate and the main body seat;

[0029] The first pin hole limits the deflection of the clamping rod, and the second pin hole is divided into an upper hole and a lower hole part. The upper hole part limits the deflection of the clamping rod like the first pin hole, and the lower hole allows the clamping rod to deflect.

[0030] As a preference,

[0031] The adjustable character mold assembly structure is also provided with clamps on both sides along the axial direction of the adjusting screw.

[0032] As a preference,

[0033] The base is provided with an adjustment groove for adjusting the position of the vertical shaft, the length direction of the adjustment groove is perpendicular to the track guide direction of the linear rail, the lower end of the vertical shaft is engaged with the adjustment groove, and the upper end of the vertical shaft is higher than the bearing part, and the outer diameter of the upper end is reduced to form a sleeve section. The base is also provided with an adjustment mechanism, the adjustment mechanism includes a push screw and a rotating handle, each vertical shaft is correspondingly provided with a push screw, one end of the push screw is sleeved with the sleeve section of the vertical shaft, and the rotating handle and all the push screws are connected by crawler transmission.

[0034] As a preference,

[0035] The other end of the connecting rod on the rotating handle is fixedly connected to a driving wheel, the outer surface of the advancing screw is sleeved with a driven wheel, and the outer surfaces of the driving wheel and the driven wheel are in contact with the crawler to realize crawler transmission connection;

[0036] The driven wheel is also provided with a secondary fixing piece fixed relative to the base along the axial direction of the advancing screw, the secondary fixing piece is rotatably connected to the driven wheel, and the secondary fixing piece is also provided with a through hole for the advancing screw to pass through;

[0037] Along the axial direction of the rotation center axis of the rotating handle, the driving wheel is also provided with a main fixing member, the main fixing member is fixed relative to the base, and the main fixing member is rotatably connected to the driving wheel.

[0038] The beneficial effects of the present invention are:

[0039] 1) It has good adaptability to workpieces and can be used for engraving workpieces of different shapes and sizes;

[0040] 2) The lettering angle and height can be adjusted conveniently and efficiently;

[0041] 3) The mold used for engraving is easy to replace and the overall device structure is highly stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of the present invention;

[0043] Figure 2 It is a structural schematic diagram of a font component;

[0044] Figure 3 It is a schematic diagram of the dissection of the type base;

[0045] Figure 4 is a schematic diagram of the structure of the clamp;

[0046] Figure 5 It is a top view schematic diagram of the improved structure of the present invention;

[0047] Figure 6 It is a schematic diagram of the improved structure of the vertical shaft;

[0048] Figure 7 is a schematic diagram of the regulating mechanism;

[0049] Figure 8 for Figure 5 Schematic diagram of the crawler drive structure in the transmission box in the middle BB section;

[0050] Fig. 9 The figure is a schematic diagram of the setting of the driven wheel;

[0051] Fig.10 for Fig. 9 An exploded cross-sectional view of the driven wheel and the auxiliary fixing member in the middle section line;

[0052] Fig.11 The figure is a schematic diagram of the setting of the driving wheel;

[0053] Fig.12 for Fig.11 An exploded cross-sectional view of the driving wheel and the main fixing parts in the middle section line;

[0054] In the figure: 100 base, 101 hydraulic cylinder fixing seat, 1011 piston hole, 102 adjustment slot, 200 seat plate, 201 linear rail, 2011 linear rail slot, 300 font fixing part, 301 slider, 302 vertical slot, 400 font assembly, 401 angle block, 4011 angle adjustment surface, 402 font module, 403 main body, 4031 vertical plate, 4031a adjustment space, 4032 adjustment screw, 4033 clamp, 40331 rotary plate, 40332 center nut, 40333 smooth layer, 404 adjustable font assembly structure, 4041 main body seat, 40411 second pin hole, 40411a upper hole, 40411b lower hole, 4042 clamping structure, 4043 pressure plate, 40431 first pin hole, 4044, 4044a latch, 40 441 pull ring, 40442 pin rod, 40443 clamping rod, 405 replaceable font, 500 vertical shaft, 5001 upper retaining ring, 5002 lower retaining ring, 5003 clamping groove, 5004 sleeve section, 501 bearing, 600 hydraulic cylinder, 601 piston rod, 601 screw end, 602 piston joint, 700 workpiece, 800 adjustment mechanism, 801 transmission box, 8011 crawler track, 802 propulsion screw, 8021 driven wheel, 80211 internal thread, 80212 first annular groove, 8022 auxiliary fixing part, 80221 first annular protrusion, 80222 through hole, 803 sleeve joint, 804 rotating handle, 8041 connecting rod, 8042 driving wheel, 80421 second annular groove, 8043 main fixing part, 80431 second annular protrusion. DETAILED DESCRIPTION

[0055] The present invention is further described in detail below in conjunction with specific embodiments and the accompanying drawings. A person of ordinary skill in the art will be able to implement the present invention based on these descriptions. In addition, the embodiments of the present invention involved in the following description are generally only embodiments of a part of the present invention, rather than all embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative work should fall within the scope of protection of the present invention.

[0056] In the description of the present invention, it should be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined, and "several" means one or more.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Unless otherwise specified, the raw materials used in the examples of the present invention are all commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the examples of the present invention are all methods known to those skilled in the art.

[0059] Example

[0060] A kind of Figure 1 The engraving tool shown in the figure is used to engrave the workpiece shown in the figure, and specifically includes:

[0061] The base 100 is provided with a seat plate 200, the lower end of the seat plate 200 is fixedly connected to the upper end surface of the base 100, and the front end surface is provided with a linear track 201, and the linear track 201 is provided with a linear track groove 2011. In this embodiment, the linear track 201 is provided with two parallel linear tracks, and the track guide direction of the linear track 201 is parallel to the upper end surface of the base 100. The front end of the seat plate 200 is also provided with a mold fixing member 300. In this embodiment, the mold fixing member 300 is as shown in Figure 1 The plate body is shown in the figure. The rear end of the mold fixing part 300 cooperates with the linear rail 201 and is provided with a slider 301. The slider 301 is fixedly connected to the rear end of the mold fixing part 300, and the slider 301 is arranged on the linear rail 201 by being engaged with the linear rail groove 2011, so that the mold fixing part 300 can slide and translate along the track guide direction of the linear rail 201. The front end of the mold fixing part 300 is detachably fixed with a mold assembly 400 for embossing and engraving.

[0062] A hydraulic cylinder 600 is provided on the side of the seat plate 200. In this embodiment, the hydraulic cylinder 600 adopts an oil cylinder. A hydraulic cylinder fixing seat 101 is provided on the base 100 corresponding to the oil cylinder. A piston hole 1011 is provided on the hydraulic cylinder fixing seat 101. The outer end of the piston rod 601 of the hydraulic cylinder 600 passes through the piston hole 1011 and abuts against the side of the font fixing member 300. The axial direction of the piston rod 601 is parallel to the track guide direction of the linear track 201. Under the action of the hydraulic cylinder 600, the piston rod 601 reciprocates along its axial direction, thereby pushing the movable font fixing member 300 to move along the linear track 201.

[0063] In order to improve the abutment stability between the piston rod 601 and the font fixing part 300 and the flexibility of actual use, the outer end of the piston rod 601 is a screw end 6011, and the screw end 6011 is sleeved with a piston joint 602 adapted thereto, and the piston joint 602 and the screw end 6011 are threadedly connected, and the piston joint 602 abuts against the side of the font fixing part 300. By rotating the piston joint 602, the initial position and the maximum stroke of the font fixing part 300 can be adjusted to adapt to different usage conditions, and the contact surface is larger. Compared with the direct abutment between the piston rod 601 and the font fixing part 300, the abutment stability of the font fixing part 300 using the piston joint 602 is higher;

[0064] The base 100 is also provided with at least two vertical shafts 500 for abutting and supporting the workpiece 700. If three or more vertical shafts 500 are provided, the vertical shafts 500 are arranged in an arc shape on the base 100, and the arc opening ends face the seat plate 200. However, it is best to have two vertical shafts 500, which is more convenient for engraving workpieces 700 of different sizes, such as Figure 1 The embodiment shown in the figure is provided with two vertical shafts 500, and the connecting line of the two vertical shafts 500 is parallel to the track guide direction of the linear track 201, and the vertical shaft 500 is arranged at the front end of the seat plate 200, and one side of the workpiece 700 abuts against the side of the vertical shaft 500 and is supported by the vertical shaft 500, and the other side is pressed by the type mold assembly 400. Under the inference action of the hydraulic cylinder 600, the type mold assembly 400 moves along the linear track 201 with the type mold fixing part 300, and the type mold assembly 400 performs lettering on the workpiece 700 by rotating and extruding during the movement, thereby realizing the lettering processing of the workpiece 700;

[0065] On the other hand, in order to prevent the static friction between the outer surface of the vertical shaft 500 and the outer surface of the workpiece 700 from affecting the actual engraving, a bearing 501 is sleeved on the vertical shaft 500. The bearing 501 replaces the vertical shaft 500 to abut and support the workpiece 700, which can achieve a better engraving effect.

[0066] Furthermore,

[0067] The character mold assembly 400 includes an angle block 401 and a character module 402, and the character mold fixing member 300 is provided with a vertical groove 302 perpendicular to the base 100, the angle block 401 and the character mold fixing member 300 are detachably fixed at the position of the vertical groove 302 by bolts and nuts, and the character module 402 is also detachably fixed to the angle adjustment surface 4011 of the angle block 401 by bolts and nuts. By replacing the angle block 401 with different inclination angles of the angle adjustment surface 4011, it is possible to achieve lettering processing of different oblique angles of the workpiece 700, and the setting of the vertical groove 302 facilitates the adjustment of the height of the character mold assembly 400 to adapt to the lettering processing of different workpieces 700;

[0068] Through the cooperation of the above-mentioned die assembly 400 and the die fixing member 300 , the applicability and practicality of the overall tooling can be improved, and can be widely used for the engraving processing of different workpieces 700 .

[0069] Alternatively, the font component 400 may be arranged in another manner.

[0070] like Figure 2 The character mold assembly 400 includes a main body 403. The main body 403 and the character mold fixing member 300 are detachably fixedly connected at the position of the vertical groove 302 by bolts and nuts. The vertical groove 302 is arranged to facilitate height adjustment of the main body 403. Two vertical plates 4031 are arranged at the front end of the main body 403. The opposite surfaces of the vertical plates 4031 are parallel. The vertical plates 4031 are used as an adjustment space 4031a for setting an adjustable character mold assembly structure 404. The adjustment space 4031a is provided with an adjustment screw 4032. The two ends of the adjustment screw 4032 are fixedly connected to the opposite surfaces of the vertical plates 4031. The axial direction of 2 is perpendicular to the opposite surfaces of the two vertical plates 4031 and parallel to the track guide direction of the linear track 201. The adjustable font assembly structure 404 is sleeved on the adjusting screw 4032 and can be rotated relative to the adjusting screw 4032 to adjust the angle of the lettering process. Compared with the aforementioned font assembly 400, it has higher adjustment flexibility. In the process of lettering, the overall adjustable font assembly structure 404 is subjected to the force along the axial direction of the adjusting screw 4032. Under this force, the adjustable font assembly structure 404 is not easy to rotate, and the angle is kept stable.

[0071] The specific adjustable font assembly structure 404 includes a replaceable font 405 and a font seat. The replaceable font 405 is a plate-shaped structure, and its front end is provided with a convex steel stamp for engraving. The font seat includes a main body seat 4041, a pressure plate 4043 and a latch 4044. The adjusting screw 4032 passes through the main body seat 4041 to achieve the matching connection between the two. The main body seat 4041 can rotate relative to the axis of the adjusting screw 4032. The front end surface of the main body seat 4041 is provided with a clamping structure 4042 arranged around the edge of the front end surface of the main body seat 4041 and opened on one side. Figure 2 The upper end of the snap-fit ​​structure 4042 of the embodiment shown is open, and the snap-fit ​​structure 4042 is used to initially snap-fit ​​the replaceable mold 405 by wrapping around the edge of the front end surface of the replaceable mold 405, or the side of the replaceable mold 405 is provided with a slot that matches the snap-fit ​​structure 4042, so as to realize the snap-fit ​​cooperation between the snap-fit ​​structure 4042 and the replaceable mold 405. Figure 2As shown, the replaceable character mold 405 is clamped by the clamping structure 4042 in a manner of wrapping around the edge of the front end surface of the replaceable character mold 405. The pressing plate 4043 is arranged on the open side of the clamping structure 4042 to close the open part of the clamping structure 4042 and abut against the side of the replaceable character mold 405 on this side, so as to achieve a complete fixing operation of the replaceable character mold 405. The pressing plate 4043 also extends backward to contact the main body 4041 and is connected to the main body 4041 through the latch 4044. The connection method of the latch 4044 is more convenient, eliminating the cumbersome process of rotating the bolt and nut.

[0072] To improve the stability of the pressure plate 4043, Figure 3 The cross-sectional schematic diagram of the die base shown in FIG. Figure 3 The above is the outer side, and the below is the inner side. The pin 4044a on the upper right side of the figure is a view of the latch 4044 rotated 90° in the horizontal direction. The view in the dotted frame of the lower left part A in the figure is a left view schematic diagram of the section line a on the main seat 4041;

[0073] The latch pin 4044 is a special-shaped structure, which includes a pull ring 40441 at the outer end, a pin rod 40442 at the middle section and a clamping rod 40443 at the inner end. The clamping rod 40443 and the pin rod 40442 are arranged at an angle, such as Figure 3The embodiment shown in the figure adopts a vertical arrangement of the two, and a first pin hole 40431 and a second pin hole 40411 are respectively provided on the pressure plate 4043 and the main body seat 4041, and the first pin hole 40431 only allows the clamping rod 40443 to pass through when it is deflected at a single angle or a very small angle, that is, the clamping rod 40443 is not allowed to deflect in the first pin hole 40431, and the second pin hole 40411 is divided into an upper hole 40411a and a lower hole 40411b. The upper hole 40411a part is the same as the first pin hole 40431, and only allows the clamping rod 40443 to pass through when it is deflected at a single angle or a very small angle, and does not allow the clamping rod 40443 to deflect in the first pin hole 40431, and the lower hole 40411b allows the clamping rod 40443 to deflect, and the first pin hole 40431 and the second pin hole 40411 are respectively provided with a first pin hole 40431 and a second pin hole 40411 The sum of the hole depths of the upper holes 40411a of the two pin holes 40411 is equal to or slightly smaller than the length of the pin rod 40442. When the clamping rod 40443 of the latch pin 4044 passes through the first pin hole 40431 and the upper hole 40411a of the second pin hole 40411 aligned with each other, and reaches the lower hole 40411b of the second pin hole 40411 in sequence, the latch pin 4044 is locked and cannot be pulled out by rotation, thereby achieving a stable fixed connection between the pressure plate 4043 and the main base 4041, which greatly improves the connection stability between the pressure plate 4043 and the main base 4041. In order to improve the setting stability of the main base 4041 on the adjusting screw 4032, the adjustable font assembly structure 404 is also provided with clamps 4033 on both sides along the axial direction of the adjusting screw 4032. The clamps 4033 are as shown in FIG. Figure 4 The rotary plate 40331 includes a central nut 40332 adapted to the adjusting screw 4032, the central nut 40332 is fixedly connected to the rotary plate 40331, the rotary plate 40331 is sleeved on the adjusting screw 4032 through the central nut 40332 and can be moved away from or close to the main seat 4041 by rotating. The arrangement of the two clamps 4033 can achieve the clamping of the main seat 4041, improve the arrangement stability of the main seat 4041, and avoid its During the engraving process, angular deflection occurs. In order to further improve the setting stability of the main seat 4041, the rotary plate 40331 is further provided with a relatively wear-resistant and smooth polished layer 40333 on the side facing the main seat 4041. The polished layer 40333 can reduce the friction force brought by the main seat 4041 to the rotary plate 40331, so as to prevent the rotary plate 40331 from rotating after being subjected to the friction force transmitted by the main seat 4041, resulting in the loosening of the clamping state and the displacement and deflection of the main seat 4041.

[0074] The above-mentioned font assembly 400 has good structural stability and working stability, and can maintain the angular stability of the replaceable font 405 during operation. At the same time, it is convenient for the replacement of the replaceable font 405 and the orientation of the overall replaceable font 405, which greatly reduces the tediousness of replacing the font or adjusting the angle, and maintains a high degree of setting stability.

[0075] In order to further improve the adaptability to the workpiece 700, the present embodiment further improves the vertical shaft 500 for abutting and supporting the workpiece 700, such as Figure 5 As shown, the base 100 is provided with an adjustment slot 102 for adjusting the position of the vertical axis 500. The adjustment slot 102 is an oblong shape. Figure 5 The length direction of the top-view angle adjustment slot 102 is perpendicular to the track guide direction of the linear track 201, and the corresponding vertical axis 500 is as follows: Figure 6 The structure shown in FIG. 1 is provided with an upper retaining ring 5001 and a lower retaining ring 5002 at its lower end, and a clamping groove 5003 is formed between the upper retaining ring 5001 and the lower retaining ring 5002 for clamping and connecting with the adjusting groove 102. The diameter of the vertical shaft 500 is equal to or slightly smaller than the width of the adjusting groove 102, but the outer diameter of the retaining ring is larger than the width of the adjusting groove 102, and the height of the adjusting groove 102 is equal to the thickness of the base 100, so that the lower end of the vertical shaft 500 can be limited in the adjusting groove 102 and can be translated along the long direction of the adjusting groove 102. In addition, the upper end of the vertical shaft 500 is higher than the bearing 501, and the outer diameter of the upper end is reduced to form a sleeve section 5004. The base 100 is provided with a Figure 7 The adjustment mechanism 800 shown in the figure comprises a transmission box 801 arranged on the base 100, the transmission box 801 is arranged on the side of the adjustment slot 102 away from the seat plate 200 along the long direction thereof, the adjustment mechanism 800 also comprises a propulsion screw 802, each vertical shaft 500 is provided with a corresponding propulsion screw 802, one end of the propulsion screw 802 passes through the transmission box 801 and extends to the vicinity of the sleeve section 5004 of the vertical shaft 500, and the end is provided with a sleeve joint 803 sleeved on the sleeve section 5004 of the vertical shaft 500, and the transmission box 80 1 is also provided with a rotating handle 804, and the rotating handle 804 is provided with a connecting rod 8041 extending into the transmission box 801. The rotating handle and all the advancing screws 802 are connected in the transmission box 801 by means of a crawler belt 8011. After the rotating handle is rotated, the advancing screw 802 pushes the vertical shaft 500 toward the seat plate 200 along the long direction of the adjustment groove 102 or drives the vertical shaft 500 away from the seat plate 200, and at the same time drives the bearing 501 on the vertical shaft 500 to move together, so as to adapt to the engraving processing of workpieces 700 of different sizes;

[0076] The transmission box 801 can be used to prevent dust from being transmitted by the crawler 8011, but not having the transmission box 801 does not affect the setting of the transmission structure. At the same time, the crawler 8011 is preferably a soft crawler 8011.

[0077] The transmission structure of the crawler belt 8011 can be specifically as follows Figure 8 As shown, the other end of the connecting rod 8041 on the rotating handle 804 is fixedly connected to a driving wheel 8042, the outer surface of the advancing screw 802 is sleeved with a driven wheel 8021, the inner surface of the driven wheel 8021 is provided with an internal thread 80211 adapted to the advancing screw 802, and the outer surfaces of the driving wheel 8042 and the driven wheel 8021 are in contact with the crawler 8011 to realize the transmission connection of the crawler 8011, and at the same time, Fig. 9 The figure shows the arrangement of the driven wheel 8021. The two ends of the driven wheel 8021 along the axial direction of the advancing screw 802 are also provided with auxiliary fixing members 8022 fixed relative to the base 100. In the case where the transmission box 801 is provided in this embodiment and the transmission box 801 is fixedly arranged on the base 100, the auxiliary fixing member 8022 is fixedly connected to the inner wall of the transmission box 801. Fig.10 The auxiliary fixing member 8022 and the driven wheel 8021 are rotatably connected through the first annular protrusion 80221 and the first annular groove 80212. In this embodiment, the first annular protrusion 80221 is set on the auxiliary fixing member 8022, and the first annular groove 80212 is set on the driven wheel 8021. The centers of the first annular protrusion 80221 and the first annular groove 80212 are both on the axis of the advancement screw 802. The auxiliary fixing member 8022 is also provided with a through hole 80222 for the advancement screw 802 to pass through. The hole wall of the through hole 80222 does not contact the advancement screw 802. After the above structure is set, the driven wheel 8021 has extremely high setting stability. In addition, as shown in FIG. Fig.11 As shown in the figure, the driving wheel 8042 is provided with at least one main fixing member 8043 along the axial direction of the rotation center axis of the rotating handle 804. The main fixing member 8043 is fixed relative to the base 100. For example, in this embodiment, the main fixing member 8043 is fixedly connected to the inner wall of the transmission box 801. Fig.12 The main fixing member 8043 and the driving wheel 8042 are rotationally connected via the second annular protrusion 80431 and the second annular groove 80421. In this embodiment, the second annular protrusion 80431 is arranged on the main fixing member 8043, and the second annular groove 80421 is arranged on the driving wheel 8042, and the centers of the second annular protrusion 80431 and the second annular groove 80421 are both on the rotation center axis of the rotating handle 804.

[0078] The above crawler belt 8011 transmission structure is only one configuration mode, and the crawler belt 8011 transmission structure of other configuration modes that can achieve the same or equivalent technical effects as the present embodiment should be included in the protection scope of the present invention;

[0079] After the above structure is set, the two vertical shafts 500 can drive the bearing 501 to simultaneously translate toward or away from the seat plate 200, thereby adapting to workpieces 700 of different sizes. On the other hand, the setting method of the soft track 8011 can avoid damage to the workpiece 700 or damage to the mold assembly 400 caused by excessive clamping.

[0080] The engraving tooling of the above structure can be applied to the engraving processing of workpieces of different shapes and sizes. At the same time, the height and angle of the engraving processing can be easily adjusted, the replacement of the engraved font is simple, the overall structure is highly stable, and it has extremely high practicality.

Claims

1. A lettering tool, characterized in that: include: The base is provided with a seat plate, which is fixedly connected to the base and has a linear rail on its front end surface. The track guide direction of the linear rail is parallel to the upper end surface of the base. A font fixing piece is also provided at the front end of the seat plate. A slider is provided at the rear end of the font fixing piece to cooperate with the linear rail and is arranged in cooperation with the linear rail through the slider. The font fixing piece is powered by a hydraulic device to translate along the linear rail. The front end of the character mold fixing piece is detachably fixed with a character mold component for embossing characters; The base is also provided with at least two vertical shafts for abutting and supporting the workpiece, and the vertical shafts are arranged at the front end of the seat plate; The die assembly comprises a main body and an adjustable die combination structure, the die fixing part is provided with a vertical slot perpendicular to the base, the main body and the die fixing part are detachably fixed at the vertical slot position by bolts and nuts, two vertical plates are provided at the front end of the main body, the opposite surfaces of the vertical plates are parallel, an adjusting screw is provided between the vertical plates, both ends of the adjusting screw are fixed to the opposite surfaces of the vertical plates, and the axial direction of the adjusting screw is perpendicular to the opposite surfaces of the two vertical plates, and is parallel to the track guide direction of the linear rail; The adjusting screw is provided with a character module or an adjustable character module combination structure; The adjustable mold assembly structure includes a replaceable mold and a mold seat; The die base includes a main body base, a pressure plate and a latch. The main body base is sleeved on the adjusting screw and can rotate relative to the axis of the adjusting screw. The front end surface of the main body base is provided with a clamping structure arranged around the edge of the front end surface of the main body base and opened on one side, so as to realize the clamping fit between the clamping structure and the replaceable die. The pressing plate is arranged on the opening side of the clamping structure, closes the opening part of the clamping structure, abuts against the side of the replaceable character mold on this side, and the pressing plate also extends backward to contact the main body seat, and is connected to the main body seat through a latch; The clamping structure clamps the replaceable character mold by wrapping around the edge of the front end surface of the replaceable character mold, or the clamping structure and the replaceable character mold are clamped by a clamping groove matched with the clamping structure provided on the side of the replaceable character mold; The base is provided with an adjustment groove for adjusting the position of the vertical shaft, the length direction of the adjustment groove is perpendicular to the track guide direction of the linear rail, the lower end of the vertical shaft is engaged with the adjustment groove, and the upper end of the vertical shaft is higher than the bearing member, and the outer diameter of the upper end is reduced to form a sleeve section. The base is also provided with an adjustment mechanism, which includes a propulsion screw and a rotating handle. Each vertical shaft is correspondingly provided with a propulsion screw, one end of the propulsion screw is sleeved with the sleeve section of the vertical shaft, and the rotating handle and all the propulsion screws are driven by the crawler belt. The transmission connection is carried out in the form of.

2. A lettering tool according to claim 1, characterized in that: When three or more vertical shafts are provided, the vertical shafts are arranged in an arc shape on the base, and the open ends of the arcs face the seat plate; when two vertical shafts are provided, the line connecting the two vertical shafts is parallel to the track guide direction of the linear rail.

3. A lettering tool according to claim 1, characterized in that: The latch comprises a pull ring at the outer end, a pin rod in the middle section and a clamping rod at the inner end, the clamping rod and the pin rod are arranged at an angle, and a first pin hole and a second pin hole are respectively provided on the pressure plate and the main body seat; The first pin hole limits the deflection of the clamping rod, and the second pin hole is divided into an upper hole and a lower hole part. The upper hole part limits the deflection of the clamping rod like the first pin hole, and the lower hole allows the clamping rod to deflect.

4. A lettering tool according to claim 3, characterized in that: The adjustable character mold assembly structure is also provided with clamps on both sides along the axial direction of the adjusting screw.

5. The engraving tool according to claim 1, characterized in that: The other end of the connecting rod on the rotating handle is fixedly connected to a driving wheel, the outer surface of the advancing screw is sleeved with a driven wheel, and the outer surfaces of the driving wheel and the driven wheel are in contact with the crawler to realize crawler transmission connection; The driven wheel is also provided with a secondary fixing piece fixed relative to the base along the axial direction of the advancing screw, the secondary fixing piece is rotatably connected to the driven wheel, and the secondary fixing piece is also provided with a through hole for the advancing screw to pass through; Along the axial direction of the rotation center axis of the rotating handle, the driving wheel is also provided with a main fixing member, the main fixing member is fixed relative to the base, and the main fixing member is rotatably connected to the driving wheel.

Images