Drawing apparatus

Abstract

The invention provides drawing equipment which comprises a base, two clamping assemblies and a driving assembly, the two clamping assemblies are arranged on the base in a spaced mode and used for clamping the two ends of an object to be drawn, and the driving assembly is arranged on the base and used for driving at least one of the two clamping assemblies to move along the base. And the two clamping assemblies can be relatively far away from each other or relatively close to each other. According to the drawing device, in the process that the two clamping assemblies are away from each other, drawing work can be carried out, and after drawing work is completed, the two clamping assemblies can be driven to be close to each other so as to be reset. In this way, the automation degree of the drawing equipment can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical equipment, and in particular to drawing equipment. Background Art

[0002] The drawing equipment is a device that can draw a glass tube to be drawn so as to stretch and thin at least a portion of the glass tube to be drawn.

[0003] However, in current drawing equipment, the clamping assembly usually cannot be automatically reset after drawing is completed, and the user needs to manually reset it before the next drawing can be performed, which increases the workload of the user. Summary of the invention

[0004] The present application provides a drawing device that can automatically perform the drawing work and reset the clamping assembly after the drawing is completed, thereby reducing manual operations.

[0005] The present application provides a drawing device, which includes a base, two clamping assemblies and a driving assembly. The two clamping assemblies are arranged at intervals on the base and are used to clamp the two ends of the object to be drawn. The driving assembly is arranged on the base and is used to drive at least one of the two clamping assemblies to move along the base so that the two clamping assemblies can be relatively far away or relatively close.

[0006] In the present application, the drawing work can be performed while the two clamping assemblies are moving away from each other, and after the drawing work is completed, the two clamping assemblies can be driven to move closer to each other for resetting. In this way, the automation level of the drawing equipment can be improved.

[0007] In some embodiments, the driving assembly is disposed on the base, and is used to drive the two clamping assemblies to move back and forth so as to move away from or closer to each other.

[0008] In some embodiments, the drawing equipment also includes a processor and at least one group of sensors, the processor is coupled to the at least one group of sensors and the driving assembly, the group of sensors includes at least a first sensor and a second sensor arranged at intervals, the processor is used to control the driving assembly to stop in response to a signal output by the first sensor when the two clamping assemblies move away from each other, and is used to control the driving assembly to stop in response to a signal output by the second sensor when the two clamping assemblies recognize the corresponding clamping assembly when the two clamping assemblies approach each other.

[0009] In some embodiments, the drawing equipment also includes a processor and two groups of sensors, the processor is coupled to the two groups of sensors and the driving assembly, the two clamping assemblies correspond to the two groups of sensors one by one, each group of sensors includes at least a first sensor and a second sensor that are spaced apart, and the processor is used to control the driving assembly to stop in response to a signal output when any one of the sensors recognizes the corresponding clamping assembly during the process of the two clamping assemblies moving away from each other, and is used to control the driving assembly to stop in response to a signal output when any one of the second sensors recognizes the corresponding clamping assembly during the process of the two clamping assemblies approaching each other.

[0010] In some embodiments, the driving assembly includes a driving motor, a bidirectional screw and two screw nuts with opposite rotation directions. The driving motor is used to drive the bidirectional screw to rotate forward or reverse. The two screw nuts are arranged on the bidirectional screw and are respectively connected to the two clamping assemblies, and are used to move away from each other and drive the two clamping assemblies away from each other when the bidirectional screw rotates forward, and move closer to each other and drive the two clamping assemblies closer to each other when the bidirectional screw rotates reversely.

[0011] In some embodiments, the drawing device further includes a first support member and a second support member, the bidirectional screw rod is supported by the first support member and the second support member, and at least one of the first support member and the second support member is fixed to the base by a screw.

[0012] In some embodiments, the driving assembly includes a driving motor, a driving wheel, a driven wheel, and a synchronous belt arranged on the driving wheel and the driven wheel. The driving motor is used to drive the driving wheel to rotate, so that the driving wheel drives the driven wheel to rotate through the synchronous belt. The driving wheel and the driven wheel are respectively arranged at both ends of the two clamping assemblies, so that the synchronous belts are surrounded by the two clamping assemblies. The two clamping assemblies are respectively connected to the synchronous belts and move in opposite directions under the action of the synchronous belts.

[0013] In some embodiments, the two clamping assemblies are slidably disposed on the base through a slide rail assembly, the slide rail assembly includes a guide rail and two sliders disposed on the guide rail, and the two clamping assemblies are respectively disposed on the two sliders; or the slide rail assembly includes two aligned guide rails and two sliders disposed on the two guide rails, and the two clamping assemblies are respectively disposed on the two sliders.

[0014] In some embodiments, the two sliders respectively have a positioning structure for positioning the clamping assembly. When the two sliders are configured to be disposed on the guide rail, the two clamping assemblies can be aligned along the extension direction of the guide rail through the positioning structure.

[0015] In some embodiments, the drawing equipment further includes a heating component, which is disposed between two clamping components and is used to draw the object to be drawn. Alternatively, the clamping component is further provided with a fixing groove so that at least a portion of the object to be drawn can be placed in the fixing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the drawing equipment involved in the embodiment of the present application; Figure 2 for Figure 1 A schematic structural diagram of another perspective of the drawing device shown; Figure 3 This is a schematic diagram of the structure of the heating plate involved in the embodiment of the present application; Figure 4 It is a structural schematic diagram of a fixing groove of a clamping assembly involved in an embodiment of the present application; Figure 5 It is a schematic structural diagram of the locking member and the support plate for fixing the strip to be drawn involved in the embodiment of the present application; Figure 6 It is a schematic diagram of the working principle of the processor controlling the driving assembly of the drawing equipment involved in the embodiment of the present application; Figure 7 for Figure 1 A schematic diagram of the structure of a bidirectional screw rod of a drawing device shown; Figure 8 Another structural schematic diagram of the drawing equipment involved in the embodiment of the present application; Fig. 9 for Figure 1 or Figure 8 A schematic cross-sectional structure diagram of the slider in the figure for positioning the clamping assembly.

[0017] Description of reference numerals: Drawing equipment 1, Clamping assembly 10, fixing groove 101, support block 11, locking member 12, locking plate 121, elastic reset member 122, locking knob 123, adjusting screw 124, sensor sheet 13, Base 20, slide rail assembly 25, guide rail 251, slider 252, positioning structure 2521, first positioning plane 2522, second positioning plane 2523, Driving assembly 30, driving motor 31, bidirectional screw 32, left-hand screw 321, right-hand screw 322, screw nut 325, left-hand screw nut 326, right-hand screw nut 327, first support member 331, second support member 332, driving wheel 341, driven wheel 342, synchronous belt 343, Heating assembly 40, heating plate 41, annular heating portion 411, connecting portion 412, Processor 50 , first sensor 60 , second sensor 61 . DETAILED DESCRIPTION

[0018] The present application will be further described below in conjunction with the accompanying drawings and some embodiments. The following embodiments are mainly used to exemplarily illustrate the technical solution of the present application, and therefore cannot be used to limit the protection scope of the present application.

[0019] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those commonly understood by technicians in the technical field to which this application belongs; the terms used herein are mainly used to describe specific embodiments and are not intended to limit this application; the terms "include", "have", "comprise" and other synonyms with the same or similar meanings in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0020] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are mainly used to distinguish different objects, and should not be understood as explicitly or implicitly indicating the relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0021] In this article, the specific features, structures or characteristics described in any embodiment may be included in at least one embodiment of the present application or a combination of at least two embodiments. It will be understood by those skilled in the art that the embodiments described herein may be combined with other embodiments in this article or other embodiments outside this article.

[0022] In the description of the embodiments of the present application, technical terms used to indicate orientation or positional relationships, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are mainly used to facilitate the description of the embodiments of the present application and simplify the description, and are not considered to mean that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0023] In the various embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "install", "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense. Taking connection as an example, it may include fixed connection, detachable connection or integral molding; it may also include at least one of mechanical connection and electrical connection; it may include direct connection or indirect connection through an intermediate medium. A person of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present application according to the specific circumstances.

[0024] The drawing device is a device that can draw a glass tube to be drawn, so that at least part of the object to be drawn is stretched and thinned. The drawing device can be a micro-drawer or a micro-electrode drawing instrument for producing glass micro-electrodes.

[0025] For example, the microelectrode drawing apparatus can draw the heated glass blank tube to make at least a portion of the glass blank tube elongated and thinner. After one or more drawing operations, when the glass blank tube is broken into two parts, two glass microelectrodes are obtained.

[0026] Normally, in order to break the glass blank tube, two clamping assemblies are generally used to fix the two ends of the glass blank tube respectively, and then the two clamping assemblies are controlled to be relatively far apart to complete the drawing. However, the current clamping assemblies are usually pulled by weights and / or electromagnets through traction lines, so the current clamping assemblies can usually only move in one direction under the traction of weights and / or electromagnets, and cannot be reset. In order to solve the above problems, the present application uses a driving assembly that can drive the clamping assemblies to be relatively far apart to complete the drawing, and can also drive the two clamping assemblies to reset after the drawing is completed.

[0027] See also Figure 1 , Figure 2 According to one or more embodiments of the present application, the drawing device 1 may include a base 20, two clamping assemblies 10 and a driving assembly 30. The two clamping assemblies 10 are arranged at intervals on the base 20 to clamp the two ends of the object to be drawn. The driving assembly 30 is arranged on the base 20 to drive at least one of the two clamping assemblies 10 to move along the base 20 so that the two clamping assemblies 10 can be relatively far away or relatively close.

[0028] Specifically, the driving assembly 30 can drive one clamping assembly 10 to move along the base 20 and approach or move away from another clamping assembly 10. The driving assembly 30 can also drive the two clamping assemblies 10 to move toward or away from each other. In the present application, the drawing work can be performed while the two clamping assemblies 10 are moving away from each other, and after the drawing work is completed, the two clamping assemblies 10 can be driven to move toward each other to reset. In the above manner, the automation degree of the drawing device 1 can be improved.

[0029] In addition, the two clamping assemblies 10 may be completely identical or not completely identical, or they may be mirror images of each other, as long as they can play the role of clamping the object to be drawn. For example, the two clamping assemblies 10 may be symmetrically arranged and spaced apart from each other.

[0030] In addition, the drawing device 1 may further include a heating assembly 40. The heating assembly 40 is disposed between the two clamping assemblies 10 and is used to draw the object to be drawn. The heating assembly 40 may be used to heat at least a portion of the object to be drawn (e.g., a glass blank tube) to partially soften it; then the driving assembly 30 may drive the two clamping assemblies 10 to move relatively apart to perform drawing.

[0031] See also Figure 3 , the heating component 40 may include a heating plate. The heating plate can generate heat. For example, the heating plate may include an annular heating portion 411. The object to be drawn may pass through the annular heating portion 411 and be heated and softened by the annular heating portion 411. In this case, the annular heating portion 411 may heat the object to be drawn evenly, thereby reducing the risk of uneven heating of the object to be drawn, thereby affecting subsequent drawing and forming. Further, the heating plate may include two connecting portions 412 connecting the annular heating portion 411. The two connecting portions 412 may be in the form of sheets, so as to facilitate clamping and fixing after being connected to the circuit. The material of the heating plate may include a platinum-iridium alloy, a nickel-titanium alloy, a copper-nickel alloy or a tungsten alloy.

[0032] Of course, the drawing device 1 may further include a cooling component (not shown) for cooling the finished product after drawing is completed to quickly set the finished product. For example, the cooling component may include a blast nozzle to blow air to the finished product after drawing is completed to cool it.

[0033] See also Figure 4 and Figure 5 According to one or more embodiments of the present application, the clamping assembly 10 is further provided with a fixing groove 101, so that at least a portion of the object to be drawn can be placed in the fixing groove 101, thereby reducing the possibility of the object to be drawn sliding during the drawing process. The fixing groove 101 can be in a "V" shape, thereby being able to accommodate objects to be drawn of different diameters. Of course, the fixing groove 101 can also be in a "C" shape or a "U" shape.

[0034] In addition, the clamping assembly 10 may include a support block 11 (see Figure 4 and Figure 5). The fixing groove 101 can be opened in the support block 11. The clamping assembly 10 can also include a locking member 12, which is used to press and fix the object to be drawn in the fixing groove 101. The locking member 12 may include a locking plate 121, an elastic reset member 122, a locking knob 123 and an adjusting screw 124. The locking plate 121 and the support block 11 are arranged at intervals. The adjusting screw 124 is penetrated by the locking plate 121 and the support block 11, and is threadedly connected to the locking knob 123. The elastic member can be arranged between the locking plate 121 and the support block 11, and is used to provide a force to the locking plate 121 away from the support block 11, so that the locking plate 121 abuts against the locking knob 123. The locking knob 123 is configured to move closer to or away from the support block 11 when rotating to adjust the distance between the locking plate 121 and the support block 11. In the above manner, the object to be drawn can be fixed between the support block 11 and the locking plate 121 .

[0035] According to one or more embodiments of the present application, the driving assembly 30 may be disposed on the base 20 to drive the two clamping assemblies 10 to move back and forth so as to move away from or closer to each other.

[0036] See also Figure 6 According to one or more embodiments of the present application, the drawing device 1 further includes a processor 50 and at least one set of sensors. The processor 50 is coupled to at least one set of sensors and the drive assembly 30. A set of sensors at least includes a first sensor 60 and a second sensor 61 arranged at intervals. The first sensor 60 and the second sensor 61 can be used to sense the position of the corresponding clamping assembly 10. For example, when the clamping assembly 10 is reset, the second sensor 61 can be triggered to output a corresponding high / low level signal; when the clamping assembly 10 moves to the position where the drawing is completed, the first sensor 60 can be triggered to output a corresponding high / low level signal.

[0037] The sensor may include a photoelectric induction switch. The clamping assembly 10 may be provided with a sensing sheet 13. The photoelectric induction switch may identify the clamping assembly 10 by identifying the sensing sheet 13.

[0038] The processor 50 can receive and respond to the signal output by the first sensor 60 and / or the second sensor 61. For example, the processor 50 controls the drive assembly 30 to stop in response to the signal output by the first sensor 60 when the two clamping assemblies 10 are moving away from each other, and controls the drive assembly 30 to stop in response to the signal output by the second sensor 61 when the two clamping assemblies 10 are moving toward each other.

[0039] The processor 50 may also be referred to as a CPU (Central Processing Unit). The processor 50 may include a chip with signal processing capabilities, a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), an image processor (GPU, ISP, etc.), or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components.

[0040] In addition, the drawing device 1 also includes a processor 50 and two groups of sensors. The processor 50 is coupled to the two groups of sensors and the drive assembly 30. The two clamping assemblies 10 correspond to the two groups of sensors one by one. Each group of sensors includes at least a first sensor 60 and a second sensor 61 that are arranged at intervals. The processor 50 is used to control the drive assembly 30 to stop in response to a signal output when any one of the sensors recognizes the corresponding clamping assembly 10 during the process of the two clamping assemblies 10 moving away from each other, and is used to control the drive assembly 30 to stop in response to a signal output when any one of the second sensors 61 recognizes the corresponding clamping assembly 10 during the process of the two clamping assemblies 10 approaching each other. In this case, even if one of the first sensors 60 or the second sensor 61 in the two groups of sensors fails, the drawing device 1 can still operate normally, thereby improving the reliability of the drawing device 1.

[0041] See also Figure 1 , Figure 2 and Figure 7 According to one or more embodiments of the present application, the driving assembly 30 may include a driving motor 31, a bidirectional screw 32, and two screw nuts 325 with opposite rotation directions. The driving motor 31 is used to drive the bidirectional screw 32 to rotate forward or reverse. The two screw nuts 325 are provided on the bidirectional screw 32 and are respectively connected to the two clamping assemblies 10, and are used to move away from each other and drive the two clamping assemblies 10 away from each other when the bidirectional screw 32 rotates forward, and move closer to each other and drive the two clamping assemblies 10 closer to each other when the bidirectional screw 32 rotates reversely.

[0042] See also Figure 7The bidirectional screw rod 32 may include a left-handed screw rod 321 and a right-handed screw rod 322 arranged along its length direction. Correspondingly, the two screw nuts 325 are respectively a left-handed screw rod nut 326 and a right-handed screw rod nut 327. The left-handed screw rod nut 326 is arranged on the left-handed screw rod 321, and the right-handed screw rod nut 327 is arranged on the right-handed screw rod 322. The drive motor 31 may include a servo motor or a stepper motor. The drive motor 31 may be connected to the bidirectional screw rod 32 through a coupling to drive the bidirectional screw rod 32 to rotate. The screw nut 325 can also be relatively fixed to the corresponding clamping assembly 10, and during the rotation of the bidirectional screw rod 32, the screw nut 325 and the corresponding clamping assembly 10 can be driven to move along the extension direction of the screw rod.

[0043] Compared with using two drive motors 31 to independently drive the two clamping assemblies 10 to move, the present application uses one drive motor 31 and one bidirectional screw rod 32 to drive the two clamping assemblies 10 to move, which can improve the synchronization of the two clamping assemblies 10 during movement, and can also reduce costs to a certain extent. Of course, in other embodiments, the drive assembly 30 may also include two drive motors 31 to independently drive the two clamping assemblies 10 to move.

[0044] The bidirectional screw 32 and the screw nut 325 may be components of a screw assembly. The screw assembly may be a ball screw assembly, a trapezoidal screw assembly or an Acme screw. The ball screw assembly further adds a ball that can roll along the thread on the screw surface inside the screw nut 325, so it also has the advantages of low friction loss, high transmission efficiency and higher transmission accuracy.

[0045] See also Figure 1 and Figure 2 The drawing device 1 further includes a first support member 331 and a second support member 322. The bidirectional screw rod 32 is supported by the first support member 331 and the second support member 322. At least one of the first support member 331 and the second support member 322 is fixed to the base 20 by screws.

[0046] Specifically, a through hole may be provided in the first support member 331 and / or the second support member 322, and a threaded hole may be provided on the base 20, through which a screw may pass and be threadedly connected with the threaded hole. Usually, there is a certain gap between the through hole, the threaded hole and the screw, and when the screw is not tightened, the gap may be used to fine-tune the position or orientation of the first support assembly / second support member 322, thereby adjusting the orientation of the bidirectional screw rod 32 (for example, to be parallel to the guide rail 251 described below).

[0047] In addition, the bidirectional screw rod 32 can be supported by the first support member 331 and the second support member 322 through bearings. For example, the bidirectional screw rod 32 can be provided on the first support member 331 and the second support member 322 through angular contact ball bearings so as to be able to rotate relative to the first support member 331 and the second support member 322. Of course, in order to reduce costs, the angular contact ball bearing provided in the one of the first support member 331 and the second support member 322 that is farther away from the drive motor 31 can also be replaced with a deep groove ball bearing.

[0048] See also Figure 8 According to one or more embodiments of the present application, the driving assembly 30 may also include a driving motor 31, a driving wheel 341, a driven wheel 342, and a synchronous belt 343 disposed on the driving wheel 341 and the driven wheel 342. The driving motor 31 is used to drive the driving wheel 341 to rotate, so that the driving wheel 341 drives the driven wheel 342 to rotate through the synchronous belt 343. The driving wheel 341 and the driven wheel 342 are respectively disposed at both ends of the two clamping assemblies 10, so that the synchronous belt 343 is surrounded by the two clamping assemblies 10, and the two clamping assemblies 10 are respectively connected to the synchronous belt 343 and move in opposite directions under the action of the synchronous belt 343. The driving wheel 341 and / or the driven wheel 342 can be rotatably disposed on the base 20, and the rotation axis of the driving wheel 341 / driven wheel 342 can be parallel to the base 20 and point to the direction of the clamping assembly 10.

[0049] In this case, the drive motor 31 can simultaneously drive the two clamping assemblies 10 to move through the synchronous belt 343, thereby improving the synchronization of the movement of the two clamping assemblies 10. In addition, compared with using two drive motors 31 to drive the two clamping assemblies 10 to move, this method can reduce production costs to a certain extent.

[0050] See also Figure 1 , Figure 2 , Figure 7 , Figure 8 and Fig. 9 According to one or more embodiments of the present application, the two clamping assemblies 10 can be slidably disposed on the base 20 through the slide rail assembly 25. The slide rail assembly 25 may include a guide rail 251 and two sliders 252 disposed on the guide rail 251. The guide rail 251 may be disposed on the base 20. The two clamping assemblies 10 are respectively disposed on the two sliders 252. The number of the guide rail 251 may be one, and the two sliders 252 are disposed on the same guide rail 251. The number of the guide rail 251 may also be two, and the two guide rails 251 are aligned, and the two sliders 252 are respectively disposed on the two guide rails 251. The slide rail assembly 25 may specifically include at least one of a linear guide, a cross roller guide, a slider slot, and a linear bearing.

[0051] In addition, the two sliders 252 may respectively have a positioning structure 2521 for positioning the clamping assembly 10 (see Fig. 9 ). When the two sliders 252 are arranged on the guide rail 251, the two clamping assemblies 10 can be aligned along the extension direction of the guide rail 251 through the positioning structure 2521. For example, when the two sliders 252 are arranged on the guide rail 251, the positioning structures 2521 of the two sliders 252 are aligned with each other, and further the two clamping assemblies 10 positioned by the positioning structure 2521 are aligned.

[0052] The positioning structure 2521 may include a first positioning plane 2522 and a second positioning plane 2523. The first positioning plane 2522 and the second positioning plane 2523 are not parallel. The clamping assembly 10 abuts against the first positioning plane 2522 and the second positioning plane 2523, and the first positioning plane 2522 and the second positioning plane 2523 may constrain the position and orientation of the clamping assembly 10. The alignment of the positioning structures 2521 of the two sliders 252 may refer to the first positioning planes 2522 of the two sliders 252 being coplanar, and the second positioning planes 2523 of the two sliders 252 being coplanar. In addition, the planar structure is relatively easy to process during the production process, and it is easy to obtain a higher precision during the production process. Therefore, the above-mentioned positioning structure 2521 also has the advantages of low production cost and convenient assembly. Of course, in other embodiments, the positioning structure 2521 may include a positioning curved surface (such as a cylindrical surface).

[0053] In summary, the drawing equipment 1 provided in the present application includes a base 20, two clamping assemblies 10 and a driving assembly 30. The two clamping assemblies 10 are arranged at intervals on the base 20 for clamping the two ends of the object to be drawn. The driving assembly 30 is arranged on the base 20 for driving at least one of the two clamping assemblies 10 to move along the base 20 so that the two clamping assemblies 10 can be relatively far away or relatively close to realize automatic drawing work, and control the function of resetting the clamping assembly 10 after the drawing is completed.

[0054] Finally, it should be noted that: the above embodiments are mainly used to illustrate the technical solutions of the present application, and should not be understood as limiting the present application; the above embodiments exemplarily illustrate the present application in detail and specifically, and ordinary technicians in this field can modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein; and these modifications or replacements cannot make the corresponding technical solutions and the technical solutions of the present application constitute different inventions, and therefore should all be included in the scope of the claims and specification of the present application. In particular, in the absence of structural conflicts or combination obstacles, the various technical features mentioned in each embodiment can be combined in any way, and the technical solutions formed by these combinations should still not be considered to be out of the scope of the technical solutions of the present application in essence.

Claims

1. A drawing device, characterized in that: include: Base, Two clamping assemblies are arranged at intervals on the base, and are used to clamp the two ends of the object to be drawn. The driving assembly is arranged on the base and is used for driving at least one of the two clamping assemblies to move along the base so that the two clamping assemblies can be relatively far away from or relatively close to each other.

2. The drawing equipment according to claim 1, characterized in that The driving assembly is arranged on the base, and is used for driving the two clamping assemblies to move back and forth so as to move away from or closer to each other.

3. The drawing equipment according to claim 2, characterized in that The drawing device also includes a processor and at least one set of sensors, the processor is coupled to the at least one set of sensors and the drive assembly, A group of sensors includes at least a first sensor and a second sensor that are spaced apart, and the processor is used to control the driving component to stop in response to a signal output by the first sensor when the two clamping components move away from each other, and to control the driving component to stop in response to a signal output by the second sensor when the two clamping components move toward each other.

4. The drawing equipment according to claim 2 or 3, characterized in that: The drawing device further includes a processor and two sets of sensors, the processor is coupled to the two sets of sensors and the driving assembly, and the two clamping assemblies correspond to the two sets of sensors in a one-to-one manner. Each group of sensors includes at least a first sensor and a second sensor that are spaced apart. The processor is used to control the driving component to stop in response to a signal output by any one of the sensors when the two clamping components move away from each other, and to control the driving component to stop in response to a signal output by any one of the second sensors when the two clamping components move toward each other.

5. The drawing equipment according to claim 2, characterized in that: The driving assembly includes a driving motor, a bidirectional screw and two screw nuts with opposite rotation directions. The driving motor is used to drive the bidirectional screw to rotate forward or reverse. The two screw nuts are arranged on the bidirectional screw and are respectively connected to two clamping assemblies, and are used to move away from each other and drive the two clamping assemblies away from each other when the bidirectional screw rotates forward, and move closer to each other and drive the two clamping assemblies closer to each other when the bidirectional screw rotates reversely.

6. The drawing equipment according to claim 5, characterized in that It also includes a first support member and a second support member, the bidirectional screw rod is supported by the first support member and the second support member, and at least one of the first support member and the second support member is fixed to the base by a screw.

7. The drawing equipment according to claim 2, characterized in that The driving assembly includes a driving motor, a driving wheel, a driven wheel, and a synchronous belt arranged on the driving wheel and the driven wheel. The driving motor is used to drive the driving wheel to rotate, and then the driving wheel drives the driven wheel to rotate through the synchronous belt. The driving wheel and the driven wheel are respectively arranged at the two ends of the two clamping components, so that the synchronous belt is arranged around the two clamping components, and the two clamping components are respectively connected to the synchronous belt and move in opposite directions under the action of the synchronous belt.

8. The drawing equipment according to any one of claims 5 to 7, characterized in that: The two clamping assemblies are slidably arranged on the base through a slide rail assembly. The slide rail assembly includes a guide rail and two sliders arranged on the guide rail, and two clamping assemblies are respectively arranged on the two sliders; Alternatively, the slide rail assembly includes two aligned guide rails, and two sliders respectively arranged on the two guide rails, and the two clamping assemblies are respectively arranged on the two sliders.

9. The drawing device according to claim 8, characterized in that The two sliders are respectively provided with positioning structures for positioning the clamping components. When the two sliders are configured to be arranged on the guide rail, the two clamping components can be aligned along the extension direction of the guide rail through the positioning structures.

10. The drawing equipment according to claim 1, characterized in that It also includes a heating component, which is arranged between the two clamping components and is used to draw the object to be drawn. Alternatively, the clamping assembly is further provided with a fixing groove, so that at least a portion of the object to be drawn can be placed in the fixing groove.

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