A positioning clamping mechanism and control method

Abstract

This invention relates to the field of clamping mechanism technology, and particularly to a positioning clamping mechanism for clamping a material box. The material box includes a first pressure surface and a second pressure surface, which are parallel to each other. The distance between the first and second pressure surfaces is defined as a target length. The mechanism includes a tooling component and a clamping assembly. A positioning groove is formed on one side of the tooling component along a straight line. This positioning clamping mechanism, by employing a positioning groove on one side of the tooling component, ensures stable positioning of the material box within the positioning groove. Furthermore, in the pre-clamping state, a target gap exists between the material box and the clamping component, and this target gap is less than the depth of the positioning groove. Therefore, it effectively solves the problem of material box slippage due to lack of clamping tightness in the initial clamping stage in the prior art, achieving stability and positioning accuracy during the clamping process, and ensuring precise placement of the material box when transferred to the next workstation.

Description

Technical Field

[0001] The invention relates to a clamping mechanism, and in particular to a positioning clamping mechanism and a control method. Background Art

[0002] In modern industrial production, the handling and fixing of materials is a very important link, especially in automated production lines. Material boxes or boxes are widely used in electronics, manufacturing, packaging and other fields to store and transport various workpieces and products. In order to achieve efficient and safe production, automated equipment is usually used to position and clamp the boxes to ensure that the boxes can be stably and accurately transferred to different processes or workstations. Among them, the performance of the clamping mechanism directly affects the smoothness and accuracy of the entire production process.

[0003] The commonly used clamping mechanism is usually designed as two clamping parts, one clamping part is located at the top of the material box, and the other clamping part is located at the bottom of the material box. In typical operation, the two clamping parts of the clamping mechanism will abut against the top and bottom of the material box respectively. This design can effectively clamp the material box in most cases.

[0004] However, in the actual clamping process, the material box may slip due to gravity or incomplete clamping, causing the material box to deviate from the clamping component, making it difficult for the clamping component to accurately locate the preset clamping position of the material box. This deviation not only affects the stability of the clamping process, but also makes it difficult to accurately place the material box when it is transferred to the next workstation, affecting production efficiency and product quality. Therefore, it is urgent to propose a positioning clamping mechanism to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a positioning clamping mechanism which can prevent a material box from slipping during the clamping process, so as to ensure that the material box is clamped stably and accurately.

[0006] The technical solution adopted by the present invention to solve the above problem is: a positioning clamping mechanism for clamping a material box, the material box includes a first pressure-bearing surface and a second pressure-bearing surface, the first pressure-bearing surface is parallel to the second pressure-bearing surface, and the distance between the first pressure-bearing surface and the second pressure-bearing surface is defined as a target length, including:

[0007] A tooling piece, one side of which is provided with a positioning groove in a straight line direction to provide a placement space for the material box, the depth of the positioning groove is defined as the guide length, and when the material box is placed in the positioning groove, the second pressure-bearing surface of the material box abuts against the inner wall of the positioning groove facing the notch, and the peripheral side of the material box fits with the peripheral inner wall of the positioning groove, wherein an avoidance groove is provided at the inner wall where the positioning groove fits with the second pressure-bearing surface of the material box.

[0008] Clamping assembly, comprising:

[0009] The first clamping member includes a first clamping surface.

[0010] A second clamping member, the second clamping member moves in a controlled manner, the second clamping member includes a second clamping surface, the second clamping surface is located on the side of the second clamping member facing the first clamping member, and the second clamping surface is arranged parallel to the first clamping surface, the area between the second clamping surface and the first clamping surface is defined as a clamping area, and the second clamping member is configured to move in a direction approaching the first clamping member or in a direction away from the first clamping member.

[0011] Wherein, the clamping assembly includes a pre-clamping state. When the clamping assembly is in the pre-clamping state, the material box placed in the positioning groove is in the clamping area, and the second clamping member is located in the avoidance groove, and there is a target gap between the first clamping surface of the first clamping member and the first pressure surface of the material box, and the target gap is smaller than the guide length.

[0012] Preferably, the inner wall of the positioning groove that fits the second pressure-bearing surface of the material box is a plane, and the avoidance groove is a through groove for the second clamping member to pass through.

[0013] Preferably, the tooling component includes a mounting plane, and the positioning groove is provided on a side of the mounting plane.

[0014] The positioning and clamping mechanism also includes:

[0015] A side positioning member is arranged on the side of the installation plane, and the side positioning member includes a positioning plane, and the positioning plane is flush with an inner side wall of the positioning groove.

[0016] A positioning assembly is arranged on the side of the mounting plane, the positioning assembly includes a guide wheel, the guide wheel moves in a controlled manner, and the rotation plane of the guide wheel is perpendicular to the positioning plane, wherein when the guide wheel moves to a minimum distance from the positioning groove, the edge contour of the guide wheel is tangent to an inner side wall of the positioning groove, and an inner side wall of the positioning groove tangent to the edge contour of the guide wheel and an inner side wall of the positioning groove flush with the positioning plane are arranged opposite to each other.

[0017] Preferably, the positioning assembly further includes a first telescopic member and a bracket, the first telescopic member includes a first movable end, the first movable end is controllably telescopic, the first movable end is connected to the bracket, and the guide wheel is disposed on the bracket.

[0018] Preferably, the clamping assembly comprises:

[0019] A mounting seat, wherein the first clamping member is connected to the mounting seat.

[0020] The second telescopic member is arranged on the mounting seat, the second telescopic member includes a second moving end, the second moving end is connected to the second clamping member, and the second clamping member and the first clamping member are arranged on one side of the mounting seat.

[0021] Preferably, the first clamping member and the second clamping member are both long strip-shaped plates.

[0022] Preferably, an anti-slip layer is provided at the first clamping surface of the first clamping member and at the second clamping surface of the second clamping member.

[0023] Preferably, the positioning and clamping mechanism comprises:

[0024] A positioning sensor is arranged at one side of the mounting seat, the distance between the positioning sensor and the first clamping surface of the first clamping member is a first preset distance, and the positioning sensor includes:

[0025] A transmitting unit for transmitting a laser beam. And

[0026] A receiving part for receiving the reflected laser beam. And

[0027] A reflector reflects the laser beam along a preset angle, the reflector is arranged on one side of the material box, and the distance between the reflector and the first pressure-bearing surface is a second preset distance.

[0028] The difference between the first preset distance and the second preset distance is equal to the target gap.

[0029] Preferably, the reflective element is a reflector, and the reflector is configured so that when the laser beam emitted by the emitting part irradiates a preset position of the reflector, the laser beam is reflected to the receiving part along a preset angle.

[0030] In particular, a control method for a positioning and clamping mechanism as described above, wherein the positioning and clamping mechanism includes a controller, and the control method includes:

[0031] The second moving end of the second telescopic member is controlled to move, thereby driving the second clamping member to move, so that the distance between the second clamping surface and the first clamping surface is greater than the sum of the target length and the target gap.

[0032] By moving the clamping assembly, the positioning sensor and the reflecting member are placed in a relative orientation state, and the emitting part is activated to emit a laser beam.

[0033] The clamping assembly is controlled to move to a target position so that the receiving portion receives the laser beam reflected by the reflector.

[0034] The clamping assembly is moved toward the magazine until the magazine enters the clamping area.

[0035] The second movable end of the second telescopic member is contracted so that the second clamping surface of the second clamping member contacts the second pressure-bearing surface of the material box, and the material box moves along with the second clamping member in a direction close to the first clamping member until the first pressure-bearing surface of the material box abuts against the first clamping surface of the first clamping member, so that the material box is clamped by the clamping assembly.

[0036] Beneficial effects of the embodiments of the present invention

[0037] Due to the technical means of setting a positioning groove on one side of the tooling part, the material box is stably positioned in the positioning groove, and when the clamping assembly is in the pre-clamping state, there is a target gap between the material box and the first clamping part, and the target gap is smaller than the depth of the positioning groove. Therefore, the problem of slippage of the material box in the prior art due to the lack of clamping in the early stage of clamping is effectively solved, thereby achieving stability and positioning accuracy during the clamping process, ensuring that the material box can be accurately placed when transferred to the next workstation, and improving production efficiency and product quality.

[0038] Due to the use of a technical means of controlling the moving end of the second telescopic member to adjust the position of the second clamping member so that the distance between it and the first clamping surface is greater than the sum of the target length and the target gap, and through the cooperation of the movement of the clamping assembly, the detection of the laser beam and the reception of the reflected signal, the positioning sensor and the reflective member are relatively oriented, thereby accurately positioning the predetermined position of the clamping mechanism. In addition, by moving the clamping assembly to allow the material box to enter the clamping area, and controlling the contraction of the moving end of the second telescopic member, the second clamping member is brought into contact with the second pressure-bearing surface of the material box, thereby driving the material box to move in the direction of the first clamping member until the first pressure-bearing surface of the material box abuts against the first clamping surface, thereby achieving stable clamping of the material box. Therefore, the problem of the material box sliding due to gravity or in an unclamped state during the clamping process in the prior art is effectively solved, thereby achieving the stability of the clamping process and the accuracy of positioning, and improving the positioning accuracy and production efficiency of the material box during the transmission process of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic structural view of an embodiment of the present invention.

[0040] Figure 2 It is a schematic structural view of a clamping assembly in one embodiment of the present invention.

[0041] Figure 3 Schematic diagram of a state in which a material box is clamped by a clamping assembly in one embodiment of the present invention Figure 1 .

[0042] Figure 4Schematic diagram of a state in which a material box is clamped by a clamping assembly in one embodiment of the present invention Figure 2 .

[0043] Figure 5 It is a schematic structural view of a tooling part in one embodiment of the present invention.

[0044] Figure 6 It is a schematic structural view of a positioning component in one embodiment of the present invention.

[0045] Among them: 100, positioning and clamping mechanism; 110, tooling; 111, positioning groove; 1111, avoidance groove; 120, clamping assembly; 121, first clamping member; 1211, first clamping surface; 122, second clamping member; 1221, second clamping surface; 123, mounting seat; 124, second telescopic member; 130, side positioning member; 131, positioning plane; 140, positioning assembly; 141, guide wheel; 142, first telescopic member; 143, bracket; 150, anti-slip layer; 160, positioning sensor; 200, material box; 210, top cover; 211, first pressure surface; 220, bottom cover; 221, second pressure surface; 230, side plate. DETAILED DESCRIPTION

[0046] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0047] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0049] Figure 1 FIG. 2 shows a schematic structural view of an embodiment of the present invention. Figure 2 A schematic structural view of a clamping assembly in one embodiment of the present invention is shown. Figure 3 A schematic structural diagram showing a state in which a material box is clamped by a clamping assembly in one embodiment of the present invention is shown. Figure 1 . Figure 4 A schematic structural diagram showing a state in which a material box is clamped by a clamping assembly in one embodiment of the present invention is shown. Figure 2 .like Figure 1-Figure 4 As shown, a preferred embodiment of the present application provides a positioning and clamping mechanism 100 for accurately clamping a material box 200, wherein the material box 200 includes a first pressure surface 211 and a second pressure surface 221, wherein the first pressure surface 211 is parallel to the second pressure surface 221, and the distance between the first pressure surface 211 and the second pressure surface 221 is defined as a target length.

[0050] Specifically, the material box 200 includes a bottom cover 220, a top cover 210 and a side plate 230. The shapes of the bottom cover 220 and the top cover 210 can be embodied in a specific manner as a strip, a circle, a square, etc. Taking the strip as an example, Figure 3 and Figure 4 As shown, the bottom cover 220 and the top cover 210 are both rectangular metal plates, and the side panel 230 is embodied in a specific implementation manner as being formed by splicing a number of pieces together or by bending a single plate. Taking splicing as an example, the side panel 230 is formed by splicing three metal plates together with the bottom cover 220 and the top cover 210. Two of the three metal plates have the same shape and size and are arranged in parallel between the top cover 210 and the bottom cover 220 to form a hollow cylindrical structure. The other metal plate is an end plate, which is fixedly mounted at one end of the cylinder, so that the cylinder structure forms a material box 200 with only a single opening for material to enter and exit.

[0051] In order to transfer the material box 200, it is necessary to first grasp the material box 200 and then transfer it. Therefore, in this embodiment, the positioning clamping mechanism 100 includes a clamping assembly 120, and the clamping assembly 120 includes a first clamping member 121 and a second clamping member 122. The side surfaces facing each other of the first clamping member 121 and the second clamping member 122 are respectively a first clamping surface 1211 and a second clamping surface 1221. The first clamping surface 1211 and the second clamping surface 1221 are arranged in parallel, and the area between the first clamping surface 1211 and the second clamping surface 1221 is defined as a clamping area. The second clamping member 122 is configured to move in a direction close to the first clamping member 121 or move in a direction away from the first clamping member 121.

[0052] Specifically, the second clamping member 122 is controlled to move toward the direction approaching the first clamping member 121 or away from the first clamping member 121, and when the material box 200 is clamped and fastened by the clamping assembly 120, the first clamping surface 1211 of the first clamping member 121 and the second clamping surface 1221 of the second clamping member 122 are respectively in contact with the first pressure-bearing surface 211 of the material box 200 and the second pressure-bearing surface 221 of the material box 200, wherein the moving direction of the second clamping member 122 is perpendicular to the top cover 210 and the bottom cover 220. In some embodiments, the first clamping member 121 may also be configured to be controlled to move or to be positionally adjustable so as to accommodate material boxes 200 of different sizes. The first clamping member 121 and the second clamping member 122 may be specifically embodied as long strips of plates or plates of other shapes. Taking a long strip of plates as an example, Figure 2-Figure 4 As shown, the long strip-shaped first clamping member 121 and the second clamping member 122 can better cooperate with the long strip-shaped top cover 210 and the bottom cover 220. In some embodiments, when the magazine 200 is clamped by the clamping assembly 120, the length of the overlapped outline of the first clamping member 121 and the top cover 210 and the length of the overlapped outline of the second clamping member 122 and the bottom cover 220 are both greater than two-thirds of the length of the top cover 210 and the length of the bottom cover 220 of the magazine 200, so as to make the clamping process of the magazine 200 more stable.

[0053] In the prior art, there are two clamping parts that move toward the material box 200 at the same time to clamp the material box 200. Although this design can complete the clamping of the material box 200 in most cases, it has significant defects in specific use. This is because the material box 200 may slip due to gravity or an unfastened state during the process of being lifted by the upward clamping part. This slippage will cause the material box 200 to shift relative to the clamping component, making it difficult to ensure that the clamping component is accurately positioned at the preset clamping position of the material box 200. This offset not only affects the clamping accuracy, but also makes it difficult to accurately position the material box 200 when it is transferred to the next workstation, affecting production efficiency and product quality.

[0054] Different from the prior art, the positioning and clamping mechanism 100 in this embodiment further comprises a tooling piece 110, and a positioning groove 111 is provided on one side of the tooling piece 110 in a straight line direction to provide a placement space for the material box 200. The depth of the positioning groove 111 is defined as a guide length, and when the material box 200 is placed in the positioning groove 111, the second pressure-bearing surface 221 of the material box 200 is in contact with the inner wall of one side of the positioning groove 111, and the peripheral side of the material box 200 is in contact with the peripheral inner wall of the positioning groove 111, so that the material box When the material box 200 moves out of the positioning groove 111, its outer peripheral side is always in contact with the inner wall of the positioning groove 111, thereby limiting the movement of the material box 200 only in the depth direction of the positioning groove 111, so that when the material box 200 is clamped by the clamping assembly 120, the material box 200 cannot slide relative to the clamping assembly 120, and an avoidance groove 1111 is provided at the inner wall where the positioning groove 111 and the second pressure-bearing surface 221 of the material box 200 are in contact, and the second clamping member 122 is located in the avoidance groove 1111. When the clamping assembly 120 has a pre-clamping state, when the clamping assembly 120 is in the pre-clamping state, the material box 200 placed in the positioning groove 111 is in the clamping area, and there is a target gap between the first clamping surface 1211 of the first clamping member 121 and the first pressure surface 211 of the material box 200, and the target gap is smaller than the guide length, thereby preventing the material box 200 from detaching from the positioning groove 111 before being clamped and tightened, so as to realize directional guidance of the entire process of clamping and tightening the material box 200.

[0055] Specifically, the tooling piece 110 provides a placement position for the material box 200. The tooling piece 110 is specifically embodied as a plate or a tooling seat. Taking a plate as an example, Figure 1 and Figure 5 As shown, the tooling 110 is a rectangular plate, wherein a plane with a larger area is the mounting surface, and the mounting surface can be a plane. The positioning groove 111 is provided on the mounting surface side, and the extending direction of the positioning groove 111 is perpendicular to the mounting surface, and the avoidance groove 1111 is provided at the inner bottom wall of the positioning groove 111. When the inner bottom wall of the positioning groove 111 is a plane, it is perpendicular to the extending direction of the positioning groove 111. The avoidance groove 1111 is embodied in a specific manner as an open groove and a through groove. Taking the through groove as an example, Figure 5As shown, the avoidance groove 1111 provides a channel for the movement of the second clamping member 122, so that the second clamping surface 1221 on the second clamping member 122 abuts against or separates from the second pressure-bearing surface 221 of the magazine 200. The pre-clamping state is the state of the magazine 200 before being clamped by the clamping assembly 120. At this time, the second clamping member 122 is different from being stationary relative to the first clamping member 121. The first clamping member 121 and the second clamping member 122 are respectively located on both sides of the top cover 210 and the bottom cover 220 of the magazine 200. It is only necessary to control the second clamping member 122 to move toward the first clamping member 121, so that the second clamping surface 1221 of the second clamping member 122 can abut against the second pressure-bearing surface 221 of the bottom cover 220 of the magazine 200, and the magazine 200 can be moved up synchronously. The target gap is the distance between the first pressure surface 211 of the top cover 210 of the material box 200 and the first clamping surface 1211 of the first clamping member 121 when the clamping assembly 120 is in the pre-clamping state. When the target distance is less than the guide length, the material box 200 will keep the surrounding side in contact with the inner wall of the positioning groove 111 during the process of synchronous upward movement with the second clamping member 122, so as to limit the lateral movement of the material box 200, so that the material box 200 can only move along the extension direction of the positioning groove 111 until the first pressure surface 211 of the top cover 210 of the material box 200 abuts against the first clamping surface 1211 of the first clamping member 121. At this time, the material box 200 is just out of the positioning groove 111 or the bottom cover 220 of the material box 200 is still partially in the second groove.

[0056] In this embodiment, the positioning and clamping mechanism 100 adopts the technical means of setting a positioning groove 111 on one side of the tooling part 110, so that the material box 200 is stably positioned in the positioning groove 111, and when the clamping assembly 120 is in the pre-clamping state, there is a target gap between the material box 200 and the first clamping part 121, and the target gap is smaller than the depth of the positioning groove 111. Therefore, the problem of slippage of the material box 200 in the prior art due to the lack of clamping and tightening in the early stage of clamping is effectively solved, thereby achieving stability and positioning accuracy in the clamping process, ensuring that the material box 200 can be accurately placed when transferred to the next workstation, thereby improving production efficiency and product quality.

[0057] Furthermore, the positioning and clamping mechanism 100 in the present embodiment also saves operating steps. Some existing clamping mechanisms usually first make the upper clamping part contact with the top of the material box 200, and then move the lower clamping part up to contact with the bottom of the material box 200 to clamp the material box 200. Compared with this, the positioning and clamping mechanism 100 in the present embodiment, after moving the clamping assembly 120 to the position of the preset state, only needs to control the second clamping member 122 to move in the direction close to the first clamping member 121 to complete the clamping of the material box 200. Therefore, the operating step of moving the first clamping member 121 down to abut against the top cover 210 of the material box 200 is saved, so that the operating efficiency of the material box 200 in the positioning and clamping step is improved.

[0058] In some embodiments, the clamping assembly 120 includes a mounting seat 123 and a second telescopic member 124, wherein the first clamping member 121 is connected to the mounting seat 123, the second telescopic member 124 is installed on the mounting seat 123, the second telescopic member 124 includes a second movable end, the second movable end is connected to the second clamping member 122, and the second clamping member 122 and the first clamping member 121 are both installed on one side of the mounting seat 123.

[0059] Specifically, the mounting seat 123 is embodied as a strip plate in a specific manner. Taking the strip plate as an example, Figure 2 and Figure 3 As shown, one side of the mounting seat 123 is a plane, and the first clamping member 121 and the second telescopic member 124 are both installed on the plane side, and the first clamping member 121 and the second telescopic member 124 are arranged on both sides along the length or width direction of the mounting seat 123, and the extension direction of the first clamping member 121 is perpendicular to the plane, and the telescopic direction of the moving end of the second telescopic member 124 is parallel to the arrangement direction of the first clamping member 121 and the second telescopic member 124, thereby controlling the second clamping member 122 to move toward or away from the first clamping member 121.

[0060] In this embodiment, since the second telescopic member 124 is installed on the mounting seat 123, and the second telescopic member 124 is connected to the second clamping member 122 through its second movable end, the second clamping member 122 can achieve controlled movement as needed, thereby more accurately adjusting the clamping force and clamping range. The connection design between the first clamping member 121 and the mounting seat 123 ensures the stability and rigidity of the first clamping member 121, avoiding positional offset or deformation during the clamping process. This technical solution effectively solves the problems of insufficient flexibility and unbalanced clamping force of the clamping assembly 120 in the prior art, thereby achieving a more accurate and stable clamping effect, improving the clamping accuracy and reliability of the material box 200, and thereby improving the work efficiency and automation level of the production line.

[0061] In some embodiments, an anti-slip layer 150 is disposed on the first clamping surface 1211 of the first clamping member 121 and the second clamping surface 1221 of the second clamping member 122 .

[0062] Specifically, the anti-slip layer 150 can be made of rubber or silicone material and has a strip shape, so that the clamping component 120 and the material box 200 have better adaptability after being clamped, and the risk of relative sliding between the material box 200 and the clamping component 120 can be further reduced.

[0063] In this embodiment, due to the technical means of setting the anti-skid layer 150 on the first clamping surface 1211 and the second clamping surface 1221, the friction between the clamping surface and the surface of the material box 200 can be effectively increased to prevent the material box 200 from slipping or loosening during the clamping process. The setting of the anti-skid layer 150 effectively solves the problem of insufficient clamping force or slipping of the material box 200 in the prior art, thereby achieving a more stable clamping effect, improving the accuracy and reliability of the clamping process, and ensuring that the material box 200 can be firmly positioned during the transmission and operation process, thereby improving the clamping performance and overall production efficiency of the automation equipment.

[0064] In order to be able to quickly and accurately place the material box 200 in the positioning groove 111, in some embodiments, the positioning clamping mechanism 100 also includes a side positioning member 130 and a positioning assembly 140, and the tooling member 110 also includes a mounting plane, which is the above-mentioned mounting plane, and the side positioning member 130 and the positioning assembly 140 are both installed on the mounting plane, and the side positioning member 130 and the positioning assembly 140 are installed on the opposite sides of the positioning groove 111 in a relative orientation, that is, when the material box 200 is placed in the positioning groove 111, the side positioning member 130 and the positioning assembly 140 are respectively located on the opposite sides of the non-material box 200 end cover and the opening, wherein the side positioning member 130 includes a positioning plane 131. Because when the material box 200 is placed in the positioning groove 111, the peripheral side of the material box 200 is in contact with the inner wall of the positioning groove 111, so the positioning plane 131 is also flush with one side inner wall of the positioning groove 111. The positioning assembly 140 includes a guide wheel 141 that moves in a controlled manner. The guide wheel 141 is configured such that a rotation plane is parallel to a mounting plane during rotation, and when the guide wheel 141 is controlled to move closest to the positioning groove 111 , an estimated edge profile of the guide wheel 141 is tangent to an inner wall of the positioning groove 111 .

[0065] Further, if Figure 1 and Figure 6As shown, the positioning assembly 140 also includes a first telescopic member 142 and a bracket 143. The first telescopic member 142 includes a first movable end, which is controllably telescopic and connected to the bracket 143. The guide wheel 141 is disposed on the bracket 143. In one embodiment, there are two guide wheels 141, which are symmetrically disposed at both ends of the bracket 143.

[0066] In this embodiment, due to the technical means of setting the positioning groove 111 on the side of the installation plane and cooperating with the side positioning member 130 and the positioning assembly 140, wherein the positioning assembly 140 makes the inner wall of the positioning groove 111 tangent to the edge contour of the guide wheel 141 through the controlled movement of the guide wheel 141 and the precise cooperation with the inner wall of the positioning groove 111, thereby realizing the precise guidance and positioning of the position of the material box 200 in the process of placing the material box 200 in the positioning groove 111. Furthermore, the addition of the first telescopic member 142 enables the guide wheel 141 to accurately adjust the position, further improving the positioning accuracy and stability. Therefore, the use of this technical solution effectively solves the problem of inaccuracy and instability that may occur in the clamping mechanism in the prior art during the placement of the material box 200, thereby realizing a more precise and stable clamping of the material box 200 during the positioning and clamping process, and improving the automation level and production efficiency of the production line.

[0067] In order to make the distance between the first clamping surface 1211 of the first clamping member 121 and the first pressure surface 211 of the top cover 210 of the material box 200 to be the target gap in the pre-clamping state, in one embodiment, the positioning clamping mechanism 100 also includes a positioning sensor 160 and a reflector (not shown in the figure), wherein the positioning sensor 160 is mounted on the aforementioned mounting seat 123, and when in the pre-clamping state, the positioning sensor 160 is set toward the material box 200, and the distance between the positioning sensor 160 and the first clamping surface 1211 of the first clamping member 121 is a first preset distance, and the positioning sensor 160 includes a transmitting part and a receiving part, the transmitting part is mainly used to transmit a laser beam, and the receiving part is used to receive the beam reflected by the reflector. The reflector is installed at the opening side of the material box 200, and is arranged opposite to the positioning sensor 160 when the positioning sensor 160 is in the pre-clamping state. The distance between the reflector and the first pressure-bearing surface 211 of the top cover 210 of the material box 200 is a second preset spacing, and the difference between the first preset spacing and the second preset spacing should be equal to the target gap. The reflector is a reflector, and the reflector is configured so that when the laser beam emitted by the transmitting part irradiates the preset position of the reflector, the laser beam is reflected to the receiving part along a preset angle.

[0068] Specifically, the distance between the positioning sensor 160 and the first clamping surface 1211 of the first clamping member 121 is the first preset distance, which specifically refers to the distance from the transmitting part to the first clamping surface 1211 of the first clamping member 121. The distance between the reflector and the first pressure-bearing surface 211 of the top cover 210 of the material box 200 is the second preset distance, which refers to the distance from the preset position on the reflector to the first pressure-bearing surface 211 of the top cover 210 of the material box 200. The positioning sensor 160 is specifically embodied as a reflective photoelectric sensor or a through-beam photoelectric sensor. Taking the reflective photoelectric sensor as an example, the light source of the reflective photoelectric sensor is a laser light source, which has a better positioning effect. The reflector is specifically embodied as a reflector, and a narrow strip area is constructed on the reflector. The strip area is parallel to the top cover 210. Only when the laser beam of the transmitting part irradiates the strip area, the laser can be reflected to the receiving part.

[0069] Among them, the reason for constructing a strip area on the reflector is to limit the reflection area and improve the positioning accuracy. The narrow strip area limits the reflection area of ​​the laser beam, and only allows the laser beam to be reflected back to the receiving part when it is accurately irradiated to the strip area. This limitation can effectively avoid the false reflection of the laser beam caused by scattering or deviation, and ensure that the receiving part receives the reflected light signal only when the clamping assembly 120 reaches the preset position. Therefore, this design improves the accuracy of the positioning sensor 160 and ensures that the target gap between the clamping surface and the top cover 210 of the material box 200 is always within the control range.

[0070] In addition, the narrow strip area can also avoid interference from other positions. The structure of the strip area eliminates the possibility of reflection other than the target position, avoiding misjudgment or interference caused by reflection from surrounding objects during the clamping process. The laser beam can only be reflected to the receiving part at a specific position in the strip area, so even if the clamping assembly 120 or the material box 200 is slightly tilted, it will not cause a false reflection signal, thereby ensuring the stability of the positioning operation.

[0071] Furthermore, the design of the strip area being parallel to the top cover 210 ensures the direction control of the reflected light beam, so that the reflected light beam can accurately return to the receiving part along a fixed path, thus meeting the precise detection requirements of the reflective photoelectric sensor.

[0072] Moreover, the reflection angle of the strip area needs to be designed to be an angle at which the reflected light beam can accurately return to the receiving part, that is, to satisfy the angle of incidence of the reflector equal to the reflection angle. Normally, the light beam of the transmitter is incident vertically on the strip area to ensure that the reflected light beam can return to the receiving part along the original path; or, by properly adjusting the angle of the reflector, the reflected light beam is directed directly toward the receiving part. The angle of the strip area also needs to be stable to ensure that the reflection angle is consistent in each clamping cycle to achieve highly repeatable detection accuracy.

[0073] In summary, constructing a narrow strip area on the reflector can effectively improve positioning accuracy, eliminate interference signals, and ensure that the reflected signal can be received only when the clamping assembly 120 reaches a specific position, thereby achieving accurate clamping and stable operation of the material box 200. The reflection angle setting of this design ensures that the laser beam returns to the receiving part stably and accurately, improving the reliability and accuracy of the overall system.

[0074] In this embodiment, due to the use of the technical means of the positioning sensor 160 and the reflector, the target gap between the first clamping surface 1211 and the first pressure surface 211 of the top cover 210 of the material box 200 can be accurately controlled, thereby effectively achieving accurate positioning in the pre-clamping state. The cooperation between the positioning sensor 160 and the reflector ensures that the clamping assembly 120 can monitor and adjust the clamping gap in real time during the clamping process, avoiding the slip problem caused by inaccurate position of the material box 200 or insufficient clamping force. This technology effectively solves the problems of inaccurate positioning or unstable gap control in the prior art, thereby achieving a more stable and accurate clamping process, improving production efficiency and operating accuracy, and ensuring the safe and stable transfer of the material box 200.

[0075] In order to enable the positioning and clamping mechanism 100 to clamp the material box 200 more accurately and stably, a control method for the positioning and clamping mechanism 100 is proposed. The positioning and clamping mechanism 100 also includes a controller (not shown in the figure). The control method includes:

[0076] By controlling the movement of the second moving end of the second telescopic member 124, the second clamping member 122 is driven to move, so that the distance between the second clamping surface 1221 and the first clamping surface 1211 is greater than the sum of the target length and the target gap, that is, the distance between the second clamping surface 1221 and the first clamping surface 1211 is greater than the sum of the distance from the first pressure-bearing surface 211 of the top cover 210 of the material box 200 to the second pressure-bearing surface 221 of the bottom cover 220 and the first clamping surface 1211 to the first pressure-bearing surface 211 of the top cover 210 in the pre-clamping state.

[0077] This step ensures that the clamping assembly 120 has enough space in the initial state to place the material box 200 in the clamping area. In addition, by controlling the telescopic action of the second telescopic member 124, the second clamping member 122 moves to a predetermined position and maintains a sufficient distance from the first clamping member 121, so that the material box 200 can easily enter the clamping area. Specifically, the predetermined position specifically refers to a position where the distance between the second clamping surface 1221 and the first clamping surface 1211 is greater than the sum of the target length and the target gap.

[0078] By moving the clamping assembly 120 , the positioning sensor 160 and the reflective element are placed in a relative orientation, and the emitting part is activated to emit a laser beam.

[0079] Among them, in order to realize the movement of the clamping assembly 120 to the position before being in the pre-clamping state, to ensure that the subsequent pre-clamping and clamping operations can be accurately performed. Specifically, the controller controls the clamping assembly 120 to move to the initial position on one side of the tooling 110. This initial position is defined by a preset first reference point, so that the clamping assembly 120 can be accurately positioned and moved from this position to ensure that with the subsequent movement of the clamping assembly 120, the material box 200 can enter the clamping area, and the second clamping member 122 enters the avoidance groove 1111. The controller (not shown in the figure) determines the position of the clamping assembly 120 through a sensor or encoder (the distance between the first reference point and the initial position is a known quantity) to ensure that it is located on the initial side of the tooling 110.

[0080] When the clamping assembly 120 moves to the initial side, the initial side is used as the second reference point to control the lifting and lowering of the clamping assembly 120, and the lifting and lowering distance of the clamping assembly 120 is a preset value (the distance between the second reference point and the first pressure surface 211 of the top cover 210 of the material box 200 is known). When the clamping assembly 120 is lifted and lowered by the preset value, the distance between the first clamping surface 1211 of the first clamping member 121 of the clamping assembly 120 and the first pressure surface 211 of the top cover 210 of the material box 200 is near the target distance, and then the positioning sensor 160 (including the transmitting part and the receiving part) will start the laser emission function.

[0081] The clamping assembly 120 is controlled to move to a target position so that the receiving portion receives the laser beam reflected by the reflector.

[0082] Among them, the clamping assembly 120 is controlled to rise and fall within a preset range (the preset range is determined according to the actual target spacing size) until the receiving part of the positioning sensor 160 receives the laser reflected by the reflector. At this time, the clamping assembly 120 moves to the target position, and the distance between the first clamping surface 1211 of the first clamping member 121 and the first pressure surface 211 of the top cover 210 of the material box 200 is the target gap.

[0083] When the clamping assembly 120 reaches the target position, the controller automatically stops the movement of the clamping assembly 120. This process is triggered by the feedback signal of the positioning sensor 160, and the controller regards this signal as confirmation of reaching the target position. At this time, the position relationship between the clamping assembly 120 and the tooling 110 has been accurately aligned, and the material box 200 is about to enter the clamping area.

[0084] The clamping assembly 120 is moved toward the magazine 200 until the magazine 200 enters the clamping area.

[0085] After the positioning is completed and confirmed, the clamping assembly 120 only needs to move further toward the tooling 110 to place the material box 200 into the clamping area. At this time, the second clamping member 122 smoothly enters the area of ​​the avoidance groove 1111, ready for the next clamping operation.

[0086] The second movable end of the second telescopic member 124 is contracted to make the second clamping surface 1221 of the second clamping member 122 contact the second pressure surface 221 of the material box 200, and the material box 200 moves along with the second clamping member 122 in the direction close to the first clamping member 121 until the first pressure surface 211 of the material box 200 abuts against the first clamping surface 1211 of the first clamping member 121, so that the material box 200 is clamped by the clamping assembly 120.

[0087] The clamping assembly 120 moves along a predetermined path, gradually guiding the material box 200 into the clamping area. This process utilizes the positioning groove 111 (the guide wheel 141 moves back, at this time, the rotating edge profile of the guide wheel 141 is not tangent to the inner side wall of the positioning groove 111) to ensure that the material box 200 remains stable during the movement without lateral sliding or deviation. This step causes the second clamping member 122 to gradually move toward the first clamping member 121 by telescoping the moving end of the second telescopic member 124, and the second clamping surface 1221 contacts the second pressure-bearing surface 221 of the bottom cover 220 of the material box 200 and pushes the material box 200 until the first pressure-bearing surface 211 contacts the first clamping surface 1211 of the first clamping member 121, thereby achieving a stable clamping effect. The execution of this step ensures that the material box 200 does not slip laterally during the clamping process, providing a stable clamping force and precise positioning.

[0088] The above contents described in this specification are merely examples of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, as long as they do not deviate from the contents of the present specification or exceed the scope defined by the claims, they shall all fall within the protection scope of the present invention.

Claims

1. A positioning clamping mechanism for clamping a material box, the material box comprising a first pressure-bearing surface and a second pressure-bearing surface, the first pressure-bearing surface is parallel to the second pressure-bearing surface, the distance between the first pressure-bearing surface and the second pressure-bearing surface is defined as a target length, characterized in that: include: A tooling piece, one side of the tooling piece is provided with a positioning groove in a straight line direction to provide a placement space for the material box, the depth of the positioning groove is defined as a guide length, and when the material box is placed in the positioning groove, the second pressure-bearing surface of the material box abuts against the inner wall of the positioning groove facing the notch, and the peripheral side of the material box fits with the peripheral inner wall of the positioning groove, wherein an avoidance groove is provided at the inner wall where the positioning groove fits with the second pressure-bearing surface of the material box; Clamping assembly, comprising: A first clamping member including a first clamping surface; A second clamping member moves in a controlled manner, the second clamping member comprises a second clamping surface, the second clamping surface is located on a side of the second clamping member facing the first clamping member, and the second clamping surface is arranged parallel to the first clamping surface, and an area between the second clamping surface and the first clamping surface is defined as a clamping area, and the second clamping member is configured to move in a direction approaching the first clamping member or in a direction away from the first clamping member; Wherein, the clamping assembly includes a pre-clamping state, when the clamping assembly is in the pre-clamping state, the material box placed in the positioning groove is in the clamping area, the second clamping member is located in the avoidance groove, and a target gap is left between the first clamping surface of the first clamping member and the first pressure surface of the material box, and the target gap is less than the guide length; The inner wall of the positioning groove that fits the second pressure-bearing surface of the material box is a plane, and the avoidance groove is a through groove, so that when the material box is placed in the positioning groove, the positioning groove is connected with the outside world, providing a moving channel for the second clamping member; The tooling piece includes a mounting plane, and a positioning groove is provided on a side of the mounting plane; The positioning and clamping mechanism also includes: A side positioning member is arranged on the side of the installation plane, and the side positioning member includes a positioning plane, and the positioning plane is flush with an inner side wall of the positioning groove; A positioning assembly is arranged on the side of the mounting plane, the positioning assembly includes a guide wheel, the guide wheel moves in a controlled manner, and the rotation plane of the guide wheel is perpendicular to the positioning plane, wherein when the guide wheel moves to a minimum distance from the positioning groove, the edge contour of the guide wheel is tangent to an inner side wall of the positioning groove, and the inner side wall of the positioning groove tangent to the edge contour of the guide wheel and the inner side wall of the positioning groove flush with the positioning plane are arranged in opposite directions.

2. A positioning and clamping mechanism according to claim 1, characterized in that: The positioning assembly also includes a first telescopic member and a bracket. The first telescopic member includes a first moving end. The first moving end is controllably telescopic and connected to the bracket. The guide wheel is arranged on the bracket.

3. A positioning and clamping mechanism according to any one of claims 1-2, characterized in that: The clamping assembly includes: A mounting seat, the first clamping member being connected to the mounting seat; The second telescopic member is arranged on the mounting seat. The second telescopic member comprises a second moving end connected to the second clamping member. The second clamping member and the first clamping member are both arranged on one side of the mounting seat.

4. A positioning and clamping mechanism according to claim 1, characterized in that: The first clamping member and the second clamping member are both long strip-shaped plates.

5. A positioning and clamping mechanism according to claim 1, characterized in that: An anti-slip layer is provided on the first clamping surface of the first clamping member and on the second clamping surface of the second clamping member.

6. A positioning and clamping mechanism according to claim 3, characterized in that: include: A positioning sensor is arranged on one side of the mounting seat, and the distance between the positioning sensor and the first clamping surface of the first clamping member is a first preset distance. The positioning sensor includes: a transmitting portion for transmitting a laser beam; and a receiving part for receiving the reflected laser beam; and A reflector, which reflects the laser beam along a preset angle, is arranged on one side of the material box, and the distance between the reflector and the first pressure-bearing surface is a second preset distance; The difference between the first preset spacing and the second preset spacing is equal to the target spacing.

7. A positioning and clamping mechanism according to claim 6, characterized in that: The reflector is a reflector, and the reflector is configured so that when the laser beam emitted by the emitting part irradiates a preset position on the reflector, the laser beam is reflected to the receiving part along a preset angle.

8. A control method for a positioning and clamping mechanism as claimed in claim 6 or 7, characterized in that: The positioning and clamping mechanism includes a controller, and the control method includes: The second clamping member is driven to move by controlling the second moving end of the second telescopic member to move, so that the distance between the second clamping surface and the first clamping surface is greater than the sum of the target length and the target gap; By moving the clamping assembly, the positioning sensor and the reflector are placed in a relative orientation, and the emitting part emits a laser beam; Controlling the clamping assembly to move to a target position so that the receiving part receives the laser beam reflected by the reflector; By moving the clamping assembly toward the material box until the material box enters the clamping area; The second movable end of the second telescopic member is contracted to make the second clamping surface of the second clamping member contact with the second pressure surface of the material box, and the material box is moved along with the second clamping member in a direction close to the first clamping member until the first pressure surface of the material box abuts against the first clamping surface of the first clamping member, so that the material box is clamped by the clamping assembly.

Images