Material clamping tool and machining equipment

Abstract

The utility model discloses a material clamping tool and machining equipment, and relates to the technical field of material clamping tools, the material clamping tool comprises a base, a material pressing part and a driving assembly, and the base is provided with a mounting surface used for bearing a workpiece; the material pressing piece is arranged opposite to the mounting surface and can be close to or far away from the mounting surface along a first direction; the driving assembly comprises at least one driving motor and two transmission structures, the two transmission structures are located at the two ends of the material pressing piece in the second direction, and an included angle is formed between the second direction and the first direction; the transmission structure comprises driving parts, driven parts and a screw rod, the driving parts and the driven parts form an orthogonal gear pair, and the driving motor is used for driving at least one driving part to rotate; the lead screw extends in the first direction and is connected with the material pressing piece, a screw hole is formed in the driven driving piece, and the lead screw penetrates through the screw hole and is meshed with the driven driving piece. According to the technical scheme, the clamping tool can also have high clamping precision under the working condition of high-frequency clamping.

Description

TECHNICAL FIELD

[0001] The utility model relates to material clamping tool technical field, especially material clamping tool and processing equipment. BACKGROUND

[0002] In laser processing equipment such as laser engraving machine, laser welding machine and laser cutting machine and other machining equipment, the material pressing mechanism is usually used to press the workpiece to be processed, in order to ensure the processing effect, it needs to have higher clamping accuracy, in addition, for some fast processing scenes, the material pressing mechanism also needs to have faster movement rhythm. In the related art, the cylinder or liquid cylinder is used in the material pressing mechanism to drive the pressing block to reciprocate and provide the pressing force to the pressing block, and in the high-frequency clamping working condition, the cylinder and the liquid cylinder will produce strong vibration, which affects the clamping accuracy. SUMMARY

[0003] The utility model discloses a material clamping tool and processing equipment, which aims to make the material clamping tool have higher clamping accuracy in the high-frequency clamping working condition.

[0004] To achieve the above object, the utility model provides a material clamping tool, which comprises:

[0005] A base is provided with a mounting surface for bearing a workpiece;

[0006] A material pressing piece is arranged opposite to the mounting surface and can approach or move away from the mounting surface along a first direction; and

[0007] A driving assembly comprises at least one driving motor and two groups of transmission structures, and the two groups of transmission structures are respectively located at two ends of the material pressing piece along a second direction, and the second direction is arranged at an angle with the first direction;

[0008] The transmission structure comprises a driving member, a driven driving member and a lead screw, the driving member and the driven driving member form a perpendicular gear pair, and the driving motor is used to drive at least one driving member to rotate;

[0009] The lead screw is arranged along the first direction and is connected with the material pressing piece, the driven driving member is provided with a screw hole, the lead screw is arranged in the screw hole and is engaged with the driven driving member.

[0010] In an embodiment, the material clamping tool further comprises two mounting seats, the mounting seats are arranged on the side of the base away from the material pressing piece, the mounting seat comprises a first mounting structure arranged opposite to another mounting seat, and the first mounting structure is provided with a first mounting hole;

[0011] The driving member comprises a first rotating shaft and a first engaging part, the first rotating shaft is rotatably arranged in the first mounting hole, and the first engaging part is engaged with the driven driving member.

[0012] In an embodiment, the driving motor is located between two first mounting structures, and the first engaging part and the driven driving member are located on the side of the first mounting structure away from the driving motor.

[0013] In an embodiment, the driving assembly comprises one driving motor, and the driving motor is arranged as a double-shaft motor, and two output shafts of the driving motor are connected with two driving members one by one.

[0014] In an embodiment, the material clamping tool further comprises a motor seat, the motor seat is arranged on the side of the base away from the pressing member, and the motor is fixed to the motor seat.

[0015] In an embodiment, the material clamping tool further comprises a first bearing, the first bearing is arranged in the first mounting hole and sleeved on the first rotating shaft.

[0016] In an embodiment, the screw rod comprises a threaded segment and a light shaft segment connected with each other, the light shaft segment is arranged in the through hole and connected with the pressing member, and the material clamping tool further comprises a sealing member, the sealing member is sleeved on the light shaft segment and clamped between the hole wall of the through hole and the light shaft segment.

[0017] In an embodiment, the mounting base further comprises a second mounting structure arranged at an angle with the first mounting structure, the second mounting structure is connected with the base and provided with a second mounting hole coaxial with the through hole.

[0018] The driven driving member comprises a second rotating shaft and a second engaging part connected with each other, the second engaging part is engaged with the first engaging part, and the second rotating shaft is rotatably arranged in the second mounting hole.

[0019] In an embodiment, the material clamping tool further comprises a second bearing, the second bearing is arranged in the second mounting hole and sleeved on the second rotating shaft.

[0020] In an embodiment, the transmission structure further comprises a stopper, the stopper is sleeved on the second rotating shaft and abuts against the side of the inner ring of the second bearing away from the second engaging part.

[0021] In an embodiment, the surface of the base facing the second mounting structure is provided with an avoiding groove coaxial with the through hole, and part of the second rotating shaft is located in the avoiding groove.

[0022] In an embodiment, the orthogonal gear pair is one of a bevel gear pair, a crown gear pair, a helical gear pair, and a worm gear pair.

[0023] And / or, the driving motor is provided with an encoder.

[0024] And / or, the output shaft of the driving motor and the driving member are connected through a shaft coupling or a cross universal joint.

[0025] And / or, the transmission structure further comprises a limiting member, which is arranged at the end of the lead screw away from the pressing member, and the cross-sectional dimension of the limiting member is greater than that of the screw hole.

[0026] And / or, the pressing member is provided with a through hole arranged opposite to the mounting surface.

[0027] The utility model also provides a processing equipment, which comprises:

[0028] An equipment main body is formed with a processing area, and is provided with a processing head above the processing area.

[0029] The clamping tool is arranged in the processing area and is used for clamping a workpiece.

[0030] In an embodiment, the processing equipment comprises two clamping tools arranged on both sides of the processing area, and at least one of the clamping tools is slidably arranged in the equipment main body, so that the distance between the two clamping tools is adjustable.

[0031] And / or, the processing head is a laser output head.

[0032] In the clamping tool, the driving motor is used as a power source, and the driving motor drives the pressing member to reciprocate through the orthogonal gear pair and the lead screw. The driving motor has high control precision and can realize accurate position and speed control. The gear transmission and the lead screw transmission make the transmission ratio constant in the transmission process, and the transmission is accurate, reliable and stable. Therefore, the clamping tool of the present application can have high clamping precision when applied to high-frequency clamping conditions with fast motion rhythm, and can better reduce the vibration and noise caused by the movement of the pressing member. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to the structures shown in these drawings without creating any creative labor.

[0034] Figure 1 The structural diagram of one embodiment of the processing equipment provided by the utility model;

[0035] Figure 2 The structural diagram of one embodiment of the clamping tool provided by the utility model;

[0036] Figure 3 The Figure 2 The sectional view of the clamping tool;

[0037] Figure 4 The Figure 3 The enlarged view of A in the clamping tool;

[0038] Figure 5 The Figure 2 The exploded view of the clamping tool;

[0039] Figure 6 The Figure 2 The structural diagram of the clamping tool at the mounting seat position;

[0040] Figure 7 The Figure 6 The exploded view.

[0041] BRIEF DESCRIPTION OF DRAWINGS

[0042] 100, processing equipment; 1, clamping tool; 11, base; 111, mounting surface; 112, through hole; 113, avoiding groove; 12, pressing piece; 121, through hole; 13, driving assembly; 131, driving motor; 1311, output shaft; 132, transmission structure; 1321, orthogonal gear pair; 1322, driving part; 1322a, first rotating shaft; 1322b, first meshing part; 1323, driven driving part; 1323a, second rotating shaft; 1323b, second meshing part; 1324, screw rod; 1324a, threaded section; 1324b, optical axis section; 1325, limiting part; 133, transmission shaft; 134, shaft coupling; 135, first bearing; 136, second bearing; 137, shaft clamp spring; 138, stopper; 139, jackscrew;

[0043] 14, mounting seat; 141, first mounting structure; 1411, first mounting hole; 142, second mounting structure; 1421, second mounting hole; 15, motor seat; 16, hole clamp spring; 17, sealing element;

[0044] 2, equipment main body; 21, processing head; 22, rack; 221, frame body; 222, cover body; 223, processing space; 23, first sliding rail; 24, second sliding rail; 25, lifting structure; X, first direction; Y, second direction; 200, processing workpiece.

[0045] The purposes, functional features and advantages of the utility model will be further explained in combination with embodiments and with reference to the drawings. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0047] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0048] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0049] In laser processing equipment such as laser engraving machine, laser welding machine and laser cutting machine and other machining equipment, a pressing mechanism is usually used to press the workpiece to be processed. In order to ensure the processing effect, it is necessary to have high clamping precision. In addition, for some fast processing scenes, the pressing mechanism also needs to have a faster movement rhythm. In the related art, a cylinder or a liquid cylinder is used in the pressing mechanism to drive the pressing block to reciprocate and provide pressing force to the pressing block. However, the cylinder and the liquid cylinder will produce strong vibration when they are used at high speed, which will easily affect the clamping precision.

[0050] Based on the above problems, the utility model provides a clamping tool 1 which can have high clamping precision under high-frequency clamping conditions.

[0051] In combination with Figures 2 to 5In an embodiment of the utility model, clamp material frock 1 includes base 11, pressing material piece 12 and drive assembly 13, base 11 is equipped with the mounting surface 111 for carrying workpiece, pressing material piece 12 is opposite with the mounting surface 111 setting, and can be close to or away from the mounting surface 111 along the first direction X;Drive assembly 13 includes at least one drive motor 131 and two groups of transmission structure 132, two groups of transmission structure 132 are located respectively at the both ends of pressing material piece 12 along the second direction Y, and the second direction Y is arranged with the first direction X angle, transmission structure 132 includes driving member 1322, driven drive 1323 and screw 1324, driving member 1322 and driven drive 1323 form orthogonal gear pair 1321, drive motor 131 is used to drive at least one driving member 1322 rotation;Screw 1324 extends along the first direction X, and is connected with pressing material piece 12, and driven drive 1323 is equipped with screw hole, and screw 1324 is arranged in screw hole and is engaged with driven drive 1323.

[0052] The clamp material frock 1 provided by the embodiment of the application can be applied to the machining equipment 100 for clamping the machining workpiece 200, and the machining workpiece 200 can be a plate or other shapes. The machining equipment 100 can be a laser welding machine, a laser engraving machine, a laser cutting machine, a laser marking machine and other laser machining equipment, can also be a machining equipment using a tool as a machining head 21, can also be an inkjet printer, a 3D printer, an ultrasonic welding machine or a bending equipment and the like.

[0053] The base 11 of the clamp material frock 1 is used for carrying the workpiece, and the base 11 can be plate-shaped, can also be a long strip-shaped structure or other structural shapes. The mounting surface 111 for carrying the workpiece is formed on the base 11, and the shape and size of the mounting surface 111 can be adapted to the shape of the machining workpiece 200, so as to carry the whole machining workpiece 200. The mounting surface 111 can also be arranged to carry part of the structure of the machining workpiece 200, for example, the mounting surface 111 can be used to carry the edge area of the machining workpiece 200.

[0054] The pressing piece 12 is arranged opposite to the mounting surface 111 of the base 11 along the first direction X, and a clamping space is formed between the pressing piece 12 and the mounting surface 111. The pressing piece 12 can be driven by the driving assembly 13 to approach or move away from the base 11, so as to press or release the workpiece 200. In actual application, the pressing piece 12 is used to press the non-processing position of the workpiece 200. The pressing piece 12 can be arranged in a block shape, a plate shape or a strip shape, for example, can be arranged in a strip shape for pressing the edge region of the workpiece 200, or can be arranged in a frame structure with a through hole 121. The processing position of the workpiece 200 can be exposed in the through hole 121, and the laser, the processing tool or the ink can pass through the through hole 121 to act on the processing position for processing. In some embodiments, the pressing piece 12 is used to press the non-processing position of the workpiece 200. At this time, the through hole 121 can also be arranged in the pressing piece 12 as a lightening hole.

[0055] The driving assembly 13 includes a driving motor 131 as a power source, and a transmission structure 132 for transmission connection between the driving motor 131 and the pressing piece 12. The transmission structure 132 includes a normal gear pair 1321 and a lead screw 1324. The normal gear pair 1321 is composed of a driving member 1322 and a driven member 1323 which are in meshing and normal transmission. The rotation center axes of the driving member 1322 and the driven member 1323 are perpendicular to each other. The driving member 1322 is connected with the output shaft 1311 of the driving motor 131, and can rotate with the output shaft 1311 of the driving motor 131 to drive the driven member 1323 to rotate. The driven member 1323 is also in meshing with the lead screw 1324. The lead screw 1324 is screwed into the screw hole arranged on the driven member 1323. When the driven member 1323 rotates, the lead screw 1324 slides along the length direction, so as to drive the pressing piece 12 to move to make the pressing piece 12 approach or move away from the base 11.

[0056] In the embodiment, the pressing piece 12 has two ends arranged at intervals along the second direction Y. Two groups of transmission structures 132 are arranged in the driving assembly 13 to be connected with the two ends of the pressing piece 12 respectively, so as to make the movement of the pressing piece 12 more stable. Optionally, one driving motor 131 can be connected with two driving members 1322 to make the two driving members 1322 move synchronously, for example, a connecting shaft penetrating through the two driving members 1322 is connected with the output shaft 1311 of the driving motor 131, or a double-shaft motor is used as the driving motor 131 in the following embodiment. Two driving motors 131 can also be arranged to correspond to the two transmission structures 132 respectively, and each driving assembly 13 drives two transmission structures 132 to move.

[0057] The driving motor 131 has high control precision, the position of the rotor and the output shaft 1311 can be positioned with high precision by setting an encoder, accurate position control can be realized, and the driving motor 131 has controllable rotating speed by modifying the pulse frequency; the gear transmission and the screw rod 1324 transmission make the transmission ratio of the transmission process constant, the transmission is accurate and reliable, and the work is stable. Therefore, the clamping tool 1 of the application can have high clamping precision in the application of high-frequency clamping working conditions with fast movement rhythm, and can better reduce the vibration and noise generated by the movement of the pressing piece 12.

[0058] Optionally, the driving assembly 13 can be arranged on the side of the pressing piece 12 away from the base 11, or the driving assembly 13 can be arranged on the side of the pressing piece 12 facing the base 11, for example, the two ends of the pressing piece 12 protrude from the range where the mounting surface 111 is located, and the driving assembly 13 is arranged on the side of the base 11; or as in the following embodiment, the driving motor 131 and the orthogonal gear pair 1321 are arranged on the side of the base 11 away from the pressing piece 12, and the screw rod 1324 is arranged to connect the base 11 and the pressing piece 12.

[0059] Optionally, the driving motor 131 and the orthogonal gear pair 1321 are arranged on the side of the base 11 away from the pressing piece 12, and the screw rod 1324 is arranged to connect the base 11 and the pressing piece 12.

[0060] Please refer to Figure 2 and Figure 3 In an embodiment, the clamping tool 1 further comprises two mounting seats 14, the mounting seats 14 are arranged on the side of the base 11 away from the pressing piece 12, the mounting seat 14 comprises a first mounting structure 141 arranged opposite to another mounting seat 14, the first mounting structure 141 is provided with a first mounting hole 1411; the driving motor 131 comprises a first rotating shaft 1322a and a first meshing part 1322b connected with each other, the first rotating shaft 1322a is rotatably arranged in the first mounting hole 1411, the first meshing part 1322b is meshed with the driven driving part 1323, the base 11 is provided with a through hole 112, and the screw rod 1324 is arranged in the through hole 112.

[0061] In the embodiment, the orthogonal gear pair 1321 in the transmission mechanism is fixed to the side of the base 11 away from the pressure member 12 through the mounting seat 14, and the lead screw 1324 in the transmission mechanism is connected with the pressure member 12 through the through hole 112 of the base 11. In this way, the space occupied by the driving assembly 13 in the active area of the pressure member 12 can be reduced, and the base 11 of the material clamping tool 1 only needs to be fixed, and the whole material clamping tool 1 can be stably operated without the need to fix the driving assembly 13 and the base 11 respectively.

[0062] The mounting seat 14 is provided with a first mounting structure 141, the first mounting structure 141 is provided with a first mounting hole 1411, and the first mounting holes 1411 of the two mounting seats 14 can be coaxially arranged or eccentrically arranged. When the first mounting holes 1411 are eccentrically arranged, two driving motors 131 are arranged in the driving assembly 13 to drive the two transmission structures 132 respectively. The driving member 1322 comprises a first rotating shaft 1322a and a first meshing part 1322b connected with each other. The first rotating shaft 1322a is rotatably arranged in the first mounting hole 1411, and the first meshing part 1322b is provided with a gear tooth for meshing with the driven driving member 1323. Optionally, the driving motor 131 can be arranged between the two mounting seats 14 or on the outer side of the two mounting seats 14, which is not limited here. Optionally, the two groups of transmission structures 132 can be arranged in axial symmetry or arranged side by side in the same arrangement manner. Taking the orthogonal gear pair 1321 as an example, when the two groups of transmission structures 132 are arranged in axial symmetry, the two driven bevel gears are located on the outer side of the two driving bevel gears or between the two driving bevel gears. When the two groups of transmission structures 132 are arranged side by side in the same arrangement manner, the installation directions of the two groups of orthogonal gear pairs 1321 are the same.

[0063] Optionally, the driven driving member 1323 comprises a second rotating shaft 1323a and a second meshing part 1323b connected with each other, and the second meshing part 1323b is provided with a gear tooth for meshing with the driving member 1322. A second mounting hole 1421 can be arranged on the surface of the base 11 away from the pressure member, so that the second rotating shaft 1323a is rotatably inserted into the second mounting hole 1421. Alternatively, the mounting seat 14 can comprise a second mounting structure 142 arranged opposite to the base 11 and connected with each other, and the second mounting hole 1421 is arranged on the second mounting structure 142 for inserting the second rotating shaft 1323a.

[0064] Optionally, when the material clamping tool 1 is installed, the first mounting structure 141 can also be used to support the base 11, and the whole material clamping tool 1 can be fixed by fixing the first mounting structure 141. In the embodiment shown in the figure, a connecting part is arranged on the first mounting structure 141, and the connecting part can be fixed by bolt locking, adhesion, clamping or other connection methods.

[0065] Please refer toFigure 2 and Figure 3 In an embodiment, the driving motor 131 is located between the two first mounting structures 141, and the first engaging portion 1322b and the driven driving member 1323 are located on the side of the first mounting structure 141 away from the driving motor 131.

[0066] In the present embodiment, the driving motor 131 of the driving assembly 13 is arranged between the two mounting seats 14, which can reduce the length of the clamping tool 1 in the rotation axis direction of the driving member 1322, compact the structural arrangement of the clamping tool 1, and thus reduce the volume and installation space of the clamping tool 1. In the two sets of transmission structures 132, the first engaging portion 1322b and the driven driving member 1323 of the driving member 1322 are arranged on the side of the first mounting structure 141 away from the other mounting seat 14, i.e., the two sets of transmission structures 132 are arranged in axial symmetry. At this time, the rotation directions of the two driving members 1322 need to be opposite to each other to synchronize the lifting of the two ends of the pressing member 12.

[0067] Referring to Figure 3 and Figure 5 In an embodiment, the driving assembly includes one driving motor 131, and the driving motor 131 is arranged as a double-shaft motor. The two output shafts 1311 of the driving motor 131 are connected to the two driving members 1322 in a one-to-one correspondence.

[0068] The double-shaft motor has two output shafts 1311, which are located at the two ends of the driving motor 131 arranged away from each other and are connected to the two driving members 1322, respectively. The rotation directions of the two output shafts 1311 are opposite to each other to make the two driving members 1322 rotate in opposite directions. This arrangement can reduce the number of driving motors 131 in the driving assembly 13, reduce the number of parts in the clamping tool 1, and simplify the structure of the clamping tool 1.

[0069] Referring to Figure 3 In an embodiment, the clamping tool 1 further includes a motor seat 15 arranged on the side of the base 11 away from the pressing member 12, and the motor is fixed to the motor seat 15.

[0070] In the present embodiment, the driving motor 131 is fixed by the motor seat 15, which can improve the positional stability of the driving motor 131, suppress the vibration of the driving motor 131 during operation, and improve the performance stability and clamping precision of the clamping tool 1.

[0071] Optionally, when the driving assembly 13 is provided with two driving motors 131, the two driving motors 131 can be fixed to the same motor seat 15, or two motor seats 15 can be provided to fix the two driving motors 131, respectively.

[0072] Referring to Figures 4 to 7In an embodiment, the material clamping tool 1 further comprises a first bearing 135, which is arranged in the first mounting hole 1411 and sleeved on the first rotating shaft 1322a.

[0073] In this arrangement, the first rotating shaft 1322a can avoid directly contacting the hole wall of the first mounting hole 1411, thereby avoiding mutual friction between the first rotating shaft 1322a and the hole wall of the first mounting hole 1411 when the driving member 1322 rotates. When the driving member 1322 rotates, the inner ring and the outer ring of the first bearing 135 rotate relative to each other, so that the rotation process of the driving member 1322 is more stable. A limiting step facing away from the first engaging part 1322b can be arranged on the side wall of the first rotating shaft 1322a, so that the inner ring of the first bearing 135 abuts against the limiting step to limit the first bearing 135. A shaft clamp spring 137 or other limiting structure can also be sleeved on the first rotating shaft 1322a, which is arranged on the side of the first bearing 135 away from the first engaging part 1322b and abuts against the inner ring of the first bearing 135, thereby avoiding the first bearing 135 from being detached from the first rotating shaft 1322a and improving the relative position stability of the first bearing 135 and the driving member 1322. In addition, a hole clamp spring 16 or other stop structure can also be arranged in the first mounting hole 1411, which is arranged on the side of the first bearing 135 away from the first engaging part 1322b and abuts against the outer ring of the first bearing 135, thereby avoiding the first bearing 135 and the driving member 1322 from moving axially in the first mounting hole 1411 and improving the overall structural stability.

[0074] Please refer to Figure 3 and Figure 4 In an embodiment, the lead screw 1324 comprises a threaded segment 1324a and a light shaft segment 1324b connected with each other, the threaded segment 1324a is arranged in the screw hole, and the light shaft segment 1324b is arranged in the via hole 112 and connected with the material clamping member 12. The material clamping tool 1 further comprises a sealing member 17, which is sleeved on the light shaft segment 1324b and clamped between the hole wall of the via hole 112 and the light shaft segment 1324b.

[0075] In the embodiment, the threaded segment 1324a of the screw rod 1324 is arranged in the threaded hole of the driven driving member 1323 for intermeshing with the driven driving member 1323 to move the screw rod 1324 along the axial direction to drive the pressing member 12 to move when the driven driving member 1323 rotates. The optical axis segment 1324b of the screw rod 1324 is arranged in the through hole 112 of the base 11 and sleeved with the sealing member 17. The sealing member 17 can seal the gap between the optical axis segment 1324b and the hole wall of the through hole 112 to prevent dust or debris in the machining process and other impurities from passing through the through hole 112 to adhere to the threaded segment 1324a or the orthogonal gear pair 1321, thereby avoiding the influence of dust and other impurities on the transmission effect and stability of the transmission structure 132. The sealing member 17 can be a V-shaped sealing ring, a Y-shaped sealing ring, a YX-shaped sealing ring or other sealing structures.

[0076] Referring to Figure 6 and Figure 7 In an embodiment, the mounting seat 14 further includes a second mounting structure 142 arranged at an angle with the first mounting structure 141, the second mounting structure 142 is connected with the base 11 and is provided with a second mounting hole 1421 coaxial with the through hole 112; the driven driving member 1323 includes a second rotating shaft 1323a and a second meshing part 1323b connected with each other, the second meshing part 1323b is meshed with the first meshing part 1322b, and the second rotating shaft 1323a is rotatably arranged in the second mounting hole 1421.

[0077] In the embodiment, the driven driving member 1323 includes a second rotating shaft 1323a and a second meshing part 1323b connected with each other, the second meshing part 1323b is provided with teeth for meshing with the driving driving member 1322, and the threaded hole of the driven driving member 1323 penetrates the second rotating shaft 1323a and the second meshing part 1323b. The mounting seat 14 includes a second mounting structure 142 arranged opposite to the base 11 and connected with each other, the second mounting structure 142 is arranged in the second mounting hole 1421 coaxial with the through hole 112, and the second rotating shaft 1323a is rotatably arranged in the second mounting hole 1421. In this arrangement, the driving driving member 1322 and the driven driving member 1323 of the transmission structure 132 are both fixed on the mounting seat 14, which facilitates the overall disassembly and assembly of the orthogonal gear pair 1321.

[0078] Referring to Figure 4 and Figure 7 In an embodiment, the material clamping tool 1 further includes a second bearing 136 arranged in the second mounting hole 1421 and sleeved with the second rotating shaft 1323a.

[0079] In this way, the second rotating shaft 1323a can avoid directly contacting the hole wall of the second mounting hole 1421, thereby avoiding mutual friction between the second rotating shaft 1323a and the hole wall of the second mounting hole 1421 when the driven driving member 1323 rotates. When the driven driving member 1323 rotates, the inner ring and the outer ring of the second bearing 136 relatively rotate, so that the rotation process of the driven driving member 1323 is more stable. Optionally, two second bearings 136 can be sleeved on the second rotating shaft 1323a, which can reduce friction and limit the driven driving member 1323 in the axial direction. The two second bearings 136 can be arranged as two angular contact bearings, or one of the second bearings 136 can be arranged as a thrust ball bearing, and the other bearing can be arranged as a deep groove ball bearing.

[0080] Optionally, a limiting step facing away from the second engaging part 1323b can be arranged on the side wall of the second rotating shaft 1323a, so that the inner ring of the second bearing 136 abuts against the limiting step to limit the second bearing 136. In addition, a stop step or other stop structure can be arranged on the hole wall of the second mounting hole 1421, and the stop structure abuts against the outer ring of the second bearing 136, thereby avoiding the second bearing 136 and the driven driving member 1323 moving in the axial direction in the second mounting hole 1421, and improving the stability of the overall structure. When two second bearings 136 are arranged, the outer rings of the two second bearings 136 can abut against two sides arranged in opposite directions.

[0081] Please refer to Figure 4 and Figure 6 In an embodiment, the transmission structure 132 further comprises a stop piece 138, which is sleeved on the second rotating shaft 1323a and abuts against the inner ring of the second bearing 136 on the side away from the second engaging part 1323b. In this way, the second bearing 136 can be limited, and the second bearing 136 can avoid moving in the axial direction of the second rotating shaft 1323a, thereby ensuring the stability of the relative position of the second bearing 136 and the second rotating shaft 1323a in the axial direction. The connection mode of the stop piece 138 and the second rotating shaft 1323a can adopt interference fit, threaded connection or use a jackscrew 139 to fix. For example, a jackscrew hole can be arranged on the side wall of the stop piece 138, the jackscrew 139 can be arranged in the jackscrew hole and abut against the side wall of the second rotating shaft 1323a, thereby fixing the stop piece 138 on the second rotating shaft 1323a.

[0082] In an embodiment, the surface of the base 11 facing the second mounting structure 142 is provided with a relief groove 113 coaxial with the through hole 112, and part of the second rotating shaft 1323a is located in the relief groove 113. In this way, the size of the clamping tool 1 in the axial direction of the second rotating shaft 1323a can be reduced, thereby reducing the volume of the clamping tool 1. In some embodiments, a stopper 138 is sleeved on the second rotating shaft 1323a, so that the stopper 138 is located in the relief groove 113.

[0083] Referring to Figure 6 In an embodiment, the orthogonal gear pair 1321 is one of a bevel gear pair, a crown gear pair, a helical gear pair, and a worm gear pair.

[0084] In the present embodiment, the driving member 1322 and the driven member 1323 can both be bevel gears, so that the orthogonal gear pair 1321 is a bevel gear pair. Alternatively, the driving member 1322 can be a cylindrical gear, and the driven member 1323 can be a crown gear matched with the cylindrical gear, so that the orthogonal gear pair 1321 is a crown gear pair. Alternatively, the driving member 1322 and the driven member 1323 can both be 45° helical gears, so that the orthogonal gear pair 1321 is a helical gear pair. Alternatively, the driving member 1322 can be a worm, and the driven member 1323 can be a worm wheel, so that the orthogonal gear pair 1321 is a worm gear pair.

[0085] In an embodiment, the driving motor 131 is provided with an encoder. The encoder can be used to detect the position, speed, and acceleration of the rotor and the output shaft 1311 of the driving motor 131, and feed back to the control system to help the control system achieve precise motion control and automatic control. By detecting the output signal of the encoder, the control system can monitor the running state of the driving motor 131 in real time, ensure that the driving motor 131 runs according to the preset parameters, and thus improve the stability and reliability of the clamping tool 1. The encoder can be, but is not limited to, an optical encoder, a magneto-electric encoder, a rotary transformer, an incremental encoder, or other types of encoders.

[0086] Referring to Figure 2 and Figure 3 In an embodiment, the output shaft 1311 of the driving motor 131 and the driving member 1322 are connected through a shaft coupling 134 or a cross shaft universal joint. In this way, even if there is a certain coaxiality error between the output shaft 1311 of the driving motor 131 and the transmission shaft 33 connected to the driving member 1322, the torque can still be smoothly transmitted under the action of the shaft coupling 134 or the cross shaft universal joint.

[0087] Referring to Figure 4In an embodiment, the transmission structure 132 further comprises a limiting piece 1325, which is arranged at the end of the screw rod 1324 away from the pressing piece 12, and the cross-sectional size of the limiting piece 1325 is greater than that of the screw hole. In this way, the screw rod 1324 is limited and the movement distance of the screw rod 1324 is limited, so that the screw rod 1324 is prevented from being separated from the driven driving piece 1323 when moving along the axial direction.

[0088] Referring to Figure 2 In an embodiment, the pressing piece 12 is provided with a through hole 121 opposite to the mounting surface 111.

[0089] In the embodiment, the through hole 121 can be used to expose the machining position of the machining workpiece 200, so that the laser, machining tool or ink can pass through the through hole 121 to act on the machining position for machining. In some embodiments, the pressing piece 12 is used to press the non-machining position of the machining workpiece 200, and at this time, the through hole 121 can be used as a weight-reducing hole, so that the pressing piece 12 is more easily driven and the energy consumption is reduced.

[0090] Referring to Figure 1 The utility model also provides a machining equipment 100, this machining equipment 100 includes equipment main body 2 and clamp material tool 1, the specific structure of clamp material tool 1 refers to any preceding embodiment, and the equipment main body 2 is formed with machining area, and is equipped with machining head 21, and clamp material tool 1 sets up in machining area, can be used to clamp and fix machining workpiece 200, to make machining head 21 when machining machining workpiece 200 makes machining workpiece 200 position stable.

[0091] The machining equipment 100 can be a laser machining equipment using a laser output head as the machining head 21, can be a machining equipment using a tool as the machining head 21, can be an inkjet printer, 3D printer, ultrasonic welding machine or bending equipment, and the like. In some embodiments, two or more machining heads 21 can be arranged in the machining equipment 100, for example, a tool and a laser output head can be arranged, so that the machining equipment 100 can be used to meet various machining requirements.

[0092] Since the machining equipment 100 of the embodiment adopts the technical solutions of the foregoing embodiments, it has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which will not be repeated here.

[0093] Optionally, the device main body 2 of the processing device 100 comprises a rack 22, the rack 22 comprises a rack body 221 formed with a processing space 223 and a cover body 222 arranged in an openable and closable manner; in addition, the device main body 2 can further comprise a first sliding rail 23 and a second sliding rail 24 arranged at an angle and arranged in the processing space 223, the second sliding rail 24 is slidably arranged on the first sliding rail 23, and the processing head 21 is slidably arranged on the second sliding rail 24, so that the processing head 21 can slide along the second sliding rail 24 and can be moved to different positions for processing along with the second sliding rail 24 sliding along the first sliding rail 23; optionally, the device main body 2 can further comprise a lifting structure 25 for driving the processing head 21 to ascend and descend, and the lifting structure 25 is arranged on the second sliding rail 24 for adjusting the height of the processing head 21.

[0094] In an embodiment, the processing device 100 comprises two material clamping tools 1 arranged on both sides of the processing area, and at least one material clamping tool 1 is slidably arranged on the device main body 2, so that the distance between the two material clamping tools 1 can be adjusted.

[0095] In the embodiment, two material clamping tools 1 are arranged in the processing device 100, and in specific applications, the two material clamping tools 1 clamp two side edges of the processing workpiece 200 respectively, so that the processing workpiece 200 can be stably clamped and fixed. One of the material clamping tools 1 can be slidably arranged on the device main body 2, or both of the material clamping tools 1 can be slidably arranged, and the distance between the two material clamping tools 1 is adjusted to adapt to the clamping of processing workpieces 200 of different widths, thereby improving the applicability.

[0096] Optionally, when the distance between the two material clamping tools 1 is adjusted, the user can manually slide the material clamping tool 1 for adjustment; or a driving mechanism for driving the material clamping tool 1 to slide can be arranged in the processing device 100 to realize automatic adjustment, which is not limited herein.

[0097] In an embodiment, the processing head 21 is arranged as a laser output head, and at this time, the processing device 100 is a laser processing device, which can be but is not limited to a laser welding machine, a laser engraving machine, a laser cutting machine and a laser marking machine, and the laser output head is used for emitting laser for welding, engraving, cutting or marking.

[0098] The above description is only an exemplary embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structural transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the present application.

Claims

1. A material clamping tool, characterized by, The clamp tool comprises: a base provided with a mounting surface for carrying a workpiece; a pressing member arranged opposite to the mounting surface and capable of moving towards or away from the mounting surface along a first direction; and a driving assembly comprising at least one driving motor and two sets of transmission structures, the two sets of transmission structures being respectively arranged at two ends of the pressing member along a second direction, the second direction being arranged at an angle with the first direction; the transmission structure comprises a driving member, a driven member and a screw rod, the driving member and the driven member form a normal gear pair, the driving motor is used to drive at least one driving member to rotate; the screw rod is arranged along the first direction and connected with the pressing member, the driven member is provided with a screw hole, the screw rod is arranged in the screw hole and engaged with the driven member. The clamp tool further comprises two mounting seats arranged on a side of the base away from the pressing member, the mounting seat comprises a first mounting structure arranged opposite to another mounting seat, and the first mounting structure is provided with a first mounting hole; 2. The clamping tool of claim 1, wherein the driving member comprises a first rotating shaft and a first engaging part connected with each other, the first rotating shaft is rotatably arranged in the first mounting hole, the first engaging part is engaged with the driven member, the base is provided with a through hole, and the screw rod is arranged in the through hole. The driving motor is arranged between the two first mounting structures, and the first engaging part and the driven member are arranged on a side of the first mounting structure away from the driving motor.

3. The clamping tool of claim 2, wherein The driving assembly comprises one driving motor, the driving motor is arranged as a double-shaft motor, and two output shafts of the driving motor are connected with two driving members in a one-to-one correspondence; 4. The material gripping tool of claim 3, wherein and / or, the clamp tool further comprises a motor seat arranged on a side of the base away from the pressing member, and the motor is fixed to the motor seat. The clamp tool further comprises a first bearing arranged in the first mounting hole and sleeved on the first rotating shaft; 5. The material gripping tool of claim 2 wherein, and / or, the screw rod comprises a threaded segment and a light shaft segment connected with each other, the light shaft segment is arranged in the through hole and connected with the pressing member; the clamp tool further comprises a sealing member sleeved on the light shaft segment and clamped between a hole wall of the through hole and the light shaft segment. The mounting seat further comprises a second mounting structure arranged at an angle with the first mounting structure, the second mounting structure is connected with the base and provided with a second mounting hole coaxial with the through hole; 6. The clamping tool of claim 2 wherein, the driven member comprises a second rotating shaft and a second engaging part connected with each other, the second engaging part is engaged with the first engaging part, and the second rotating shaft is rotatably arranged in the second mounting hole. The clamp tool further comprises a second bearing arranged in the second mounting hole and sleeved on the second rotating shaft; 7. The gripper tool of claim 6, wherein wherein, the transmission structure further comprises a stopper sleeved on the second rotating shaft and abutting against a side of an inner ring of the second bearing away from the second engaging part. ​ And / or, a surface of the base facing the second mounting structure is provided with a recess coaxial with the through hole, and part of the second rotating shaft is located in the recess.

8. The gripper of any one of claims 1 to 7, wherein, The orthogonal gear pair is one of a bevel gear pair, a crown gear pair, a helical gear pair, and a worm gear pair. And / or, the driving motor is provided with an encoder. And / or, the output shaft of the driving motor and the driving member are connected through a shaft coupling or a cross universal joint. And / or, the transmission structure further comprises a limiting member, which is arranged at the end of the lead screw away from the pressing member, and the cross-sectional dimension of the limiting member is greater than that of the screw hole. And / or, the pressing member is provided with a through hole opposite to the mounting surface.

9. A processing apparatus characterized by comprising: The device comprises: a device body, a machining area is formed in the device body, and a machining head is arranged above the machining area; and a clamping tool as claimed in any one of claims 1 to 8 is arranged in the machining area and used for clamping a machining workpiece.

10. The processing apparatus of claim 9, wherein, The machining device comprises two clamping tools arranged on both sides of the machining area, and at least one of the clamping tools is slidably arranged in the device body, so that the distance between the two clamping tools is adjustable. And / or, the machining head is a laser output head.

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