An automatically centered positioning carriage clamp

Abstract

The present application relates to the technical field of clamps, in particular to a vehicle frame clamp with automatic centering and positioning, comprising a frame body part, two opposite plate bodies and symmetrically arranged clamping plates installed between the two plate bodies, a motor driving a hinged part to lift and lower through a first reciprocating screw rod, controlling the distance between the lower ends of the two clamping plates, the two clamping plates rotating through a hinged shaft to drive the upper ends of the two clamping plates to change, achieving clamping of the vehicle frame, and the upper ends of the two clamping plates being provided with limiting parts, on the one hand, supporting the vehicle frame to facilitate placement of the vehicle frame, and on the other hand, when the limiting parts are lowered to the lowest position, a transmission part is connected to the light rod at the upper end of the first reciprocating screw rod, the transmission part is driven by the motor to move, adjusting the distance between the two sliding plates, further adjusting the distance between the two clamping plates through the sliding plates, and clamping vehicle frames of different specifications is achieved.

Description

Technical Field

[0001] This invention relates to the field of clamping technology, and more particularly to an automatic centering and positioning frame clamp. Background Technology

[0002] The production of the chassis for the unmanned, all-electric wide-body dump truck presents numerous challenges. To enhance the overall strength of the longitudinal beams, the design concept is to eliminate all holes in the longitudinal beams. However, during chassis assembly, the lack of usable positioning holes in the longitudinal beams, coupled with the requirement for precise centerline positioning, leads to difficulties in positioning during production. Therefore, a positioning mechanism with automatic centering capability has been designed. This positioning mechanism is a common tool in the structural component manufacturing industry, widely used in the automotive and automotive parts sectors.

[0003] In the production of wide-body dump truck frames, existing positioning mechanisms are mostly single-sided or single-side positioning, relying heavily on the process holes or mounting holes of the parts themselves. When the parts do not have mounting holes or process holes, they can only position one side of the parts. When the drawings require that the centerline dimension of the parts be guaranteed, the existing structural tooling can no longer meet the requirements of the drawings, and the production reliability and adjustment convenience are poor. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the current automatic centering and positioning frame clamps, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide an automatic centering and positioning frame clamp, which aims to center, position and clamp frames of different specifications without drilling holes in the frame.

[0007] To solve the above technical problems, the present invention provides the following technical solution: an automatic centering and positioning frame clamp, including a frame component, including two opposing plates and symmetrically arranged clamps installed between the two plates, the upper ends of the two clamps sliding along the plates through hinge shafts, and the lower ends of the two clamps being connected by a hinge.

[0008] A limiting component is installed above the frame component, including a sliding plate component slidably disposed on the upper end of each of the clamps, and the two sliding plates component are connected by a transmission component for adjusting the distance between them. The frame is placed on the upper surface of the two sliding plates component.

[0009] The power unit is installed below the frame component, including a motor installed below the plate. The motor drives the hinge to rise and fall through a first reciprocating screw. A guide rod is provided at the upper end of the first reciprocating screw, and the guide rod is inserted into the transmission component.

[0010] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the clamping plate includes a hinge block on its side, the hinge shaft is rotatably mounted on the hinge block, the plate body is provided with a transverse groove, and the two ends of the hinge shaft are slidably connected to the transverse groove.

[0011] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the hinge includes a telescopic plate, each end of the telescopic plate is hinged to a connecting plate, the other end of the connecting plate is hinged to the lower end of the clamping plate, a first screw hole is vertically opened at the center of the telescopic plate, and the first reciprocating screw is screwed into the first screw hole.

[0012] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the telescopic plate includes a middle plate and two side plates installed on both sides of the middle plate. The side plates and the middle plate are connected by a connecting block. The two ends of the connecting block slide in the sliding grooves opened in the side plates and the middle plate, respectively. A limiting block is provided on the side of the middle plate. A vertical groove is opened on the side of the plate body. The limiting block slides along the vertical groove.

[0013] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the sliding plate includes a sliding plate and a support plate. One end of the sliding plate slides along the T-slot on the side of the clamp via a T-shaped foot, and the other end of the sliding plate slides in a notch opened at one end of the support plate via a sliding block.

[0014] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the other end of the sliding plate is provided with a through groove, the inside of the notch is provided with a side groove, one end of the sliding block slides in the through groove, the other end slides in the side groove, and the end of the sliding block that slides in the side groove is T-shaped and limited.

[0015] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, each of the support plates has a receiving cavity on its lower surface, and each of the support plates has a support hole and a support post on its upper side. The two support plates are connected to each other by the support post of one support plate being inserted into the support hole of the other support plate.

[0016] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the transmission component is disposed in the receiving cavity and includes a double-ended reciprocating screw. Each receiving cavity is provided with a fixing block. The two fixing blocks are respectively located at both ends of the double-ended reciprocating screw, and the double-ended reciprocating screw is fixed to the inner wall of one of the receiving cavities by a bearing bracket.

[0017] As a preferred embodiment of the automatic centering and positioning frame fixture of the present invention, wherein: a first bevel gear is mounted on the double-headed reciprocating screw via a one-way bearing, a second bevel gear is mounted below the first bevel gear, the second bevel gear is mounted below the bearing bracket, a tapered cross plug is provided at the lower end of the second bevel gear, a cross groove is provided at the upper end of the guide rod, and the cross plug is inserted into the cross groove.

[0018] As a preferred embodiment of the automatic centering and positioning frame clamp of the present invention, the upper surface of the hinge block is provided with a groove, the lower surface of the sliding plate is provided with a protrusion, and the protrusion is inserted into the groove.

[0019] The beneficial effects of this invention are as follows: The motor drives the hinge components to rise and fall via the first reciprocating screw, controlling the change in the distance between the lower ends of the two clamping plates. Since the two clamping plates rotate via the hinge shaft, the upper ends of the two clamping plates also change, achieving clamping of the frame. This avoids the need for drilling holes in the frame, thus achieving functions such as clamping and centering. Simultaneously, a limiting component is provided between the upper ends of the two clamping plates. This limiting component not only supports the frame, facilitating its placement, but also, when it descends to its lowest point, connects the transmission component to the guide rod at the upper end of the first reciprocating screw, allowing the motor to drive the transmission component to move and adjust the distance between the two sliding plates. Further adjustment of the distance between the two clamping plates via the sliding plates enables clamping of frames of different specifications, increasing the adaptability to different frames and improving the practicality of the equipment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0021] Figure 1 This is a schematic diagram of the working state of the automatic centering and positioning frame fixture of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the frame clamp for automatic centering and positioning according to the present invention.

[0023] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the frame clamp for automatic centering and positioning according to the present invention.

[0024] Figure 4 This is a side view of the frame clamp for automatic centering and positioning according to the present invention.

[0025] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the AA direction.

[0026] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure along the BB direction.

[0027] Figure 7 for Figure 5 Enlarged schematic diagram of the structure at point C.

[0028] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point D.

[0029] Figure 9 for Figure 5 Enlarged schematic diagram of the structure at point E in the middle. Detailed Implementation

[0030] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0033] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0034] Example 1

[0035] Reference Figure 1-3 This invention provides a first embodiment of an automatic centering and positioning frame clamp, comprising a frame component 100, including two opposing plates 101 and symmetrically arranged clamping plates 102 installed between the two plates 101. The upper ends of the two clamping plates 102 slide along the plates 101 via hinge shafts 103, and the lower ends of the two clamping plates 102 are connected by hinge members 104. A limiting component 200 is installed above the frame component 100 and includes a slidable upper end of each clamping plate 102. There is a skateboard component 201, and two skateboard components 201 are connected by a transmission component 202 for adjusting the distance between them. The frame is placed on the upper surface of the two skateboard components 201. The power component 300 is installed below the frame component 100 and includes a motor 301 installed below the board body 101. The motor 301 drives the hinge component 104 to rise and fall through a first reciprocating screw 302. A guide rod 303 is provided at the upper end of the first reciprocating screw 302 and the guide rod 303 is inserted into the transmission component 202.

[0036] In this embodiment, the motor 301 drives the hinge 104 to rise and fall via the first reciprocating screw 302, controlling the change in the distance between the lower ends of the two clamping plates 102. Since the two clamping plates 102 rotate via the hinge shaft 103, the upper ends of the two clamping plates 102 also change, thereby clamping the frame. At the same time, since a limiting component 200 is provided between the upper ends of the two clamping plates 102, it is used to support the frame and facilitate the placement of the frame. On the other hand, when it descends to the lowest position, the transmission component 202 is connected to the guide rod 303 at the upper end of the first reciprocating screw 302. The transmission component 202 is driven by the motor 301 to move, adjusting the distance between the two sliding plate components 201. Furthermore, the distance between the two clamping plates 102 is adjusted by the sliding plate components 201, thereby achieving the clamping of frames of different specifications.

[0037] Example 2

[0038] Reference Figure 2-5 This is the second embodiment of the present invention, which differs from the first embodiment in that: an automatic centering and positioning frame clamp, wherein the clamping plate 102 includes a hinge block 102a on its side, a hinge shaft 103 is rotatably mounted on the hinge block 102a, a transverse groove 101a is formed on the plate body 101, and the two ends of the hinge shaft 103 are slidably connected to the transverse groove 101a. The hinge member 104 includes a telescopic plate 104a, each end of the telescopic plate 104a is hinged to a connecting plate 104b, the other end of the connecting plate 104b is hinged to the lower end of the clamping plate 102, a first screw hole 104a-6 is vertically formed at the center of the telescopic plate 104a, and a first reciprocating screw 302 is screwed into the first screw hole 104a-6.

[0039] It should be noted that each clamping plate 102 has a hinge block 102a on its upper middle side. The hinge block 102a rotates on the plate body 101 via the hinge shaft 103. The lower end of the clamping plate 102 is hinged to a telescopic plate 104a via a connecting plate 104b. The raising and lowering of the telescopic plate 104a causes the lower end of the clamping plate 102 to change by pulling the connecting plate 104b, thereby changing the distance between the lower ends of the two clamping plates 102.

[0040] The telescopic plate 104a includes a middle plate 104a-1 and two side plates 104a-2 installed on both sides of the middle plate 104a-1. A limiting block 104a-5 is provided on the side of the middle plate 104a-1, and a vertical groove 101b is provided on the side of the plate body 101. The limiting block 104a-5 slides along the vertical groove 101b.

[0041] It should be noted that a one-way bearing is provided at the center of the middle plate 104a-1 of the telescopic plate 104a. The inner wall of the one-way bearing has a first screw hole 104a-6 and a limit block 104a-5 is provided on the side. The first reciprocating screw 302 is screwed into the first screw hole 104a-6. The limit block 104a-5 slides in the vertical groove 101b of the plate body 101, so that the rotation of the first reciprocating screw 302 drives the middle plate 104a-1 to move up and down along the vertical groove 101b through the limit block 104a-5. The middle plate 104a-1 moves up and down, and the side plates 104a-2 at both ends of it also move up and down, so that the entire telescopic plate 104a moves up and down, thereby controlling the opening and closing between the two clamping plates 102.

[0042] In this embodiment, the motor 301 is started to rotate, and the rotation of the motor 301 drives the first reciprocating screw 302 to rotate. The first reciprocating screw 302 drives the telescopic plate 104a, which has the first screw hole 104a-6 inside, to rise and fall. When the telescopic plate 104a rises, it drives the lower ends of the two clamping plates 102 to close in the middle through the connecting plates 104b at both ends, so that each clamping plate 102 rotates around its respective hinge shaft 103 as the pivot, opening the upper ends of the two clamping plates 102 to facilitate the insertion of the frame. Conversely, when the telescopic plate 104a falls, it pushes the lower ends of each clamping plate 102 to separate through the connecting plates 104b, so that the upper ends of the two clamping plates 102 close, thereby clamping the inserted frame.

[0043] Example 3

[0044] Reference Figure 4-9This is the third embodiment of the present invention, which differs from the second embodiment in that: an automatic centering and positioning frame clamp, wherein the sliding plate component 201 includes a sliding plate 201a and a support plate 201b. One end of the sliding plate 201a slides along the T-slot 102b on the side of the clamping plate 102 via a T-shaped foot 201a-1, and the other end of the sliding plate 201a slides in a notch 201b-1 at one end of the support plate 201b via a sliding block 201c. A through groove 201a-2 is provided at the other end of the sliding plate 201a, and a side groove 201b-6 is provided on the inner side of the notch 201b-1. One end of the sliding block 201c slides in the through groove 201a-2, and the other end slides in the side groove 201b-6, and the end of the sliding block 201c that slides in the side groove 201b-6 is T-shaped and limited.

[0045] It should be noted that one end of the sliding plate 201a slides in the T-slot 102b on the side of the clamping plate 102 via the T-shaped foot 201a-1, so that when the upper end of the clamping plate 102 moves open and close, the sliding plate 201a is pulled to move up and down. At the same time, the sliding plate 201a always remains perpendicular to the upper end of the clamping plate 102. One end of the sliding block 201c is set as a rectangle, which moves in the side groove 201b-6 of the notch 201b-1. The other end is set as a circle, which can both slide and rotate in the through groove 201a-2. In this way, when the sliding plate 201a is pulled by the clamping plate 102, the support plate 201b can always maintain the same height as the sliding plate 201a (the height of the end connected to the sliding plate 201a). At the same time, there can be a certain gradual angle between the sliding plate 201a and the support plate 201b, which works in conjunction with the clamping plate 102 to drive the angle change of the sliding plate 201a. Furthermore, a spring can be installed in the T-slot 102b to push the T-shaped foot 201a-1 of the sliding block 201c upward, so that when the upper end of the clamping plate 102 is separated, the sliding block 201c moves upward and lifts the frame.

[0046] The upper surface of the hinge block 102a is provided with a groove 102a-1, and the lower surface of the sliding plate 201a is provided with a protrusion 201a-3, which is inserted into the groove 102a-1.

[0047] It should be noted that when the sliding plate 201a and the support plate 201b are closed at the upper end of the clamping plate 102, they descend to the lower position to keep the sliding plate 201a and the support plate 201b at the same horizontal height. At this time, the lower end of the sliding plate 201a is inserted into the groove 102a-1 of the hinge block 102a through the protrusion 201a-3. Since the hinge block 102a and the clamping plate 102 are set perpendicular to each other on the side, when the clamping plate 102 is clamped, the clamping plate 102 is set to... When the hinge block 102a is in a vertical position, it is also in a horizontal position. The hinge block 102a is parallel to the sliding plate 201a, so that the protrusion 201a-3 can be directly inserted into the groove 102a-1, making the sliding plate 201a and the hinge block 102a locked together. In this way, the sliding block 201c can drive the clamping plate 102 to move horizontally through the simultaneous action of the protrusion 201a-3 and the T-shaped foot 201a-1.

[0048] In this embodiment, when the frame is placed on the two support plates 201b, both support plates 201b are simultaneously compressed. The support plates 201b drive the sliding plate 201a downward along the T-slot 102b on the side of the clamping plate 102 via the sliding block 201c. At the same time, the first reciprocating screw 302 drives the upper ends of the two clamping plates 102 to close, and the sliding plate 201a will descend along the T-slot 102b. Meanwhile, the sliding block 201c also slides in the through slot 201a-2 and the side slot 201b-6. The sliding plate 201a rotates in the notch 201b-1 of the support plate 201b until the sliding plate 201a... The protrusion 201a-3 on the lower surface of 01a is inserted into the groove 102a-1 of the hinge block 102a. At the same time, the two hinge plates remain horizontal, and the support plate 201b and sliding plate 201a also remain horizontal. The upper sides of the clamping plate 102 clamp the two sides of the frame to achieve positioning. Conversely, when the upper ends of the two clamping plates 102 separate, the distance between them will increase. At this time, the clamping plate 102 drives the sliding plate 201a to move upward through the T-slot 102b. At the same time, the sliding plate 201a drives the two support plates 201b to move upward through the sliding block 201c, raising the frame and revealing the state of loosening the clamp.

[0049] Example 4

[0050] Reference Figure 4-9This is the fourth embodiment of the present invention, which differs from the third embodiment in that: an automatic centering and positioning frame clamp, wherein the transmission component 202 is disposed in the receiving cavity 201b-2 and includes a double-ended reciprocating screw 202a, and each receiving cavity 201b-2 is provided with a fixing block 201b-5, the two fixing blocks 201b-5 are respectively located at both ends of the double-ended reciprocating screw 202a, and the double-ended reciprocating screw 202a is fixed to the inner wall of one of the receiving cavities 201b-2 by a bearing bracket 202b. A first bevel gear 202d is mounted on the double-ended reciprocating screw 202a via a one-way bearing 202c. A second bevel gear 202e is mounted below the first bevel gear 202d. The second bevel gear 202e is mounted below the bearing bracket 202b. A tapered cross plug 202f is provided at the lower end of the second bevel gear 202e. A cross groove 303a is provided at the upper end of the guide rod 303. The cross plug 202f is inserted into the cross groove 303a.

[0051] It should be noted that the cross plug 202f at the bottom of the second bevel gear 202e is tapered, and the opening of the cross groove 303a at the upper end of the guide rod 303 is also tapered, so that the cross plug 202f can be inserted into the upper end of the guide rod 303. The cross plug 202f and the cross groove 303a are keyed. The rotation of the guide rod 303 can drive the cross plug 202f to rotate synchronously, thereby driving the rotation of the second bevel gear 202e.

[0052] It should also be noted that the double-headed reciprocating screw 202a consists of two reciprocating screws with opposite directions of motion. When it rotates, the left side drives the fixed block 201b-5 to move to the left, and the right side drives the fixed block 201b-5 to move to the right. When the fixed block 201b-5 moves to the end of each reciprocating screw, as it continues to rotate, the left side drives the fixed block 201b-5 to move to the right, and the right side drives the fixed block 201b-5 to move to the left. This allows the first bevel gear 202d to adjust the distance between the two support plates 201b by first separating and then closing in one direction of rotation, so that the clamping plate 102 can adapt to different specifications of the frame.

[0053] The first bevel gear 202d and the double-ended reciprocating screw 202a are connected by a one-way bearing 202c. In this way, when the motor 301 drives the first reciprocating screw 302 to raise and lower the telescopic plate 104a, it will not drive the double-ended reciprocating screw 202a to rotate. Similarly, the intermediate plate 104a-1 is provided with a first screw hole 104a-6 on the inner side of the one-way bearing 202c. In this way, when the motor 301 drives the first reciprocating screw 302, the guide rod 303, the first bevel gear 202d, and the second bevel gear 202e to rotate the double-ended reciprocating screw 202a, it will not drive the telescopic plate 104a to move.

[0054] Each support plate 201b has a receiving cavity 201b-2 on its lower surface. Each support plate 201b has a support hole 201b-3 and a support post 201b-4 on its upper side. The two support plates 201b are connected to each other by the support post 201b-4 of one support plate 201b being inserted into the support hole 201b-3 of the other support plate 201b.

[0055] It should be noted that the support columns 201b-4 on the two support plates 201b are staggered, and the support holes 201b-3 are also staggered. The support holes 201b-3 and the support columns 201b-4 are inserted one-to-one. In this way, when the double-headed reciprocating screw 202a rotates to adjust the distance between the two support plates 201b, the two support plates 201b maintain the connection relationship through the insertion between the two sets of support columns 201b-4 and support holes 201b-3, while keeping the two support plates 201b horizontal.

[0056] The telescopic plate 104a includes a middle plate 104a-1 and two side plates 104a-2 installed on both sides of the middle plate 104a-1. The side plates 104a-2 and the middle plate 104a-1 are connected by a connecting block 104a-3. The two ends of the connecting block 104a-3 slide in the sliding grooves 104a-4 opened in the side plates 104a-2 and the middle plate 104a-1, respectively.

[0057] It should be noted that, since the clamping state of the clamping plate 102 on the frame is set to vertical in this application, when the clamping plate 102 needs to adapt to different frame specifications, it is only necessary to expand or shrink the distance between the two clamping plates 102, that is, to make the two clamping plates 102 move synchronously towards each other. At this time, the hinge 104 located between the two clamping plates 102 also needs to be changed. That is, the clamping plate 102 pulls the side plate 104a-2 to move through the lower connecting plate 104b, changing the distance between the two side plates 104a-2 and the middle plate 104a-1. However, the side plate 104a-2 and the middle plate 104a-1 are always connected by the connecting block 104a-3 to ensure that the telescopic plate 104a is horizontal and remains as a whole, so that the first reciprocating screw 302 can drive it to rise and fall.

[0058] In this embodiment, when the first reciprocating screw 302 drives the hinge 104 to descend, the hinge 104 drives the lower ends of the two clamping plates 102 to separate. Since both clamping plates 102 rotate with the hinge shaft 103 through the hinge block 102a, the upper ends of the two clamping plates 102 close, causing the two sliding plates 201 that slide along the clamping plates 102 to descend. The descent of the sliding plates 201 causes the transmission component 202 installed inside them to also descend. This allows the tapered cross plug 202f at the lower end of the second bevel gear 202e in the transmission component 202 to be inserted into the cross groove 303a at the upper end of the guide rod 303, so that the motor 301 can drive the guide rod 303 to rotate through the first reciprocating screw 302, and the guide rod 303 drives the transmission component 202 to run.

[0059] Specifically, the guide rod 303 drives the second bevel gear 202e to rotate, the second bevel gear 202e drives the first bevel gear 202d to rotate, the rotation of the first bevel gear 202d drives the double-headed reciprocating screw 202a to rotate through the one-way bearing 202c, the rotation of the double-headed reciprocating screw 202a drives the two fixed blocks 201b-5 to separate or close, the fixed blocks 201b-5 drive their respective support plates 201b to close or separate, the support plates 201b drive the clamping plates 102 to move along the transverse groove 101a through the sliding plate 201a, so that the two clamping plates 102 keep vertical and move synchronously to separate or close. At this time, the lower end of the clamping plate 102 will drive the side plate 104a-2 and the middle plate 104a-1 in the telescopic plate 104a to change adaptively through the connecting plate 104b, so as to realize the change of the distance between the two clamping plates 102 to adapt to different specifications of the frame.

[0060] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0061] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A frame clamp for automatic centering and positioning, characterized in that: include, The frame component (100) includes two opposing plates (101) and symmetrically arranged clamping plates (102) installed between the two plates (101). The upper ends of the two clamping plates (102) slide along the plates (101) through hinge shafts (103), and the lower ends of the two clamping plates (102) are connected by hinges (104). A limiting component (200) is installed above the frame component (100), including a sliding plate component (201) slidably disposed on the upper end of each clamp (102), and the two sliding plate components (201) are connected by a transmission component (202) for adjusting the distance between them, and the frame is placed on the upper surface of the two sliding plate components (201); The power unit (300) is installed below the frame component (100) and includes a motor (301) installed below the plate (101). The motor (301) drives the hinge (104) to rise and fall through a first reciprocating screw (302). A guide rod (303) is provided at the upper end of the first reciprocating screw (302). The guide rod (303) is inserted into the transmission component (202). The sliding plate component (201) includes a sliding plate (201a) and a support plate (201b); Each of the support plates (201b) has a receiving cavity (201b-2) on its lower surface. The transmission component (202) is disposed in the receiving cavity (201b-2) and includes a double-ended reciprocating screw (202a). Each receiving cavity (201b-2) is provided with a fixing block (201b-5). The two fixing blocks (201b-5) are respectively located at both ends of the double-ended reciprocating screw (202a). The double-ended reciprocating screw (202a) is fixed to the inner wall of one of the receiving cavities (201b-2) by a bearing bracket (202b). A first bevel gear (202d) is mounted on the double-headed reciprocating screw (202a) via a one-way bearing (202c). A second bevel gear (202e) is mounted below the first bevel gear (202d). The second bevel gear (202e) is mounted below the bearing bracket (202b). A tapered cross plug (202f) is provided at the lower end of the second bevel gear (202e). A cross groove (303a) is provided at the upper end of the guide rod (303), and the cross plug (202f) is inserted into the cross groove (303a).

2. The automatic centering and positioning frame clamp according to claim 1, characterized in that: The clamping plate (102) includes a hinge block (102a) on its side, and the hinge shaft (103) is rotatably mounted on the hinge block (102a). A transverse groove (101a) is provided on the plate body (101), and the two ends of the hinge shaft (103) are slidably connected to the transverse groove (101a).

3. The automatic centering and positioning frame clamp according to claim 2, characterized in that: The hinge (104) includes a telescopic plate (104a), with a connecting plate (104b) hinged to each of the two ends of the telescopic plate (104a). The other end of the connecting plate (104b) is hinged to the lower end of the clamping plate (102). A first screw hole (104a-6) is vertically opened at the center of the telescopic plate (104a), and the first reciprocating screw (302) is screwed into the first screw hole (104a-6).

4. The automatic centering and positioning frame clamp according to claim 3, characterized in that: The telescopic plate (104a) includes a middle plate (104a-1) and two side plates (104a-2) installed on both sides of the middle plate (104a-1). The side plates (104a-2) and the middle plate (104a-1) are connected by a connecting block (104a-3). The two ends of the connecting block (104a-3) slide in the sliding grooves (104a-4) opened in the side plates (104a-2) and the middle plate (104a-1), respectively. A limiting block (104a-5) is provided on the side of the middle plate (104a-1). A vertical groove (101b) is opened on the side of the plate body (101). The limiting block (104a-5) slides along the vertical groove (101b).

5. The automatic centering and positioning frame clamp according to claim 3, characterized in that: One end of the sliding plate (201a) slides along the T-slot (102b) on the side of the clamping plate (102) via a T-shaped foot (201a-1), and the other end of the sliding plate (201a) slides in the notch (201b-1) opened at one end of the support plate (201b) via a sliding block (201c).

6. The automatic centering and positioning frame clamp according to claim 5, characterized in that: The other end of the sliding plate (201a) is provided with a through groove (201a-2), and the inside of the notch (201b-1) is provided with a side groove (201b-6). One end of the sliding block (201c) slides in the through groove (201a-2), and the other end slides in the side groove (201b-6). The end of the sliding block (201c) that slides in the side groove (201b-6) is T-shaped and limited.

7. The automatic centering and positioning frame clamp according to claim 5 or 6, characterized in that: Each of the support plates (201b) has a support hole (201b-3) and a support post (201b-4) on its upper side, and the two support plates (201b) are connected to each other by the support post (201b-4) of one support plate (201b) being inserted into the support hole (201b-3) of the other support plate (201b).

8. The automatic centering and positioning frame clamp according to claim 5, characterized in that: The upper surface of the hinge block (102a) is provided with a groove (102a-1), and the lower surface of the sliding plate (201a) is provided with a protrusion (201a-3), which is inserted into the groove (102a-1).

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