A screw clamping jig

Abstract

The utility model discloses a kind of screw clamping jigs, including fixed part and clamping part, fixed part includes fixed plate, clamping part includes first clamping plate and second clamping plate movably separately arranged at both sides of fixed plate, with fixed plate is enclosed to form locking groove for accommodating screw, the position of clamping plate is adjustable to realize that locking groove is switched between merging locking state and opening release state.The utility model forms dynamic locking groove by movable clamping plate separately arranged at both sides of fixed plate, supports the synchronous fixation of multiple screw, the position of clamping plate is adjustable to realize that locking groove is quickly switched between merging locking state and opening release state, rigidly engages with screw to prevent skidding when merging locking, eliminate radial tension to prevent jamming when opening release, significantly improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of screw tensioning devices, and specifically to a screw clamping fixture. Background Technology

[0002] In the LED display industry, LED screen cabinet control cards require the installation of riser plates. These plates typically need to be secured with several long screws (such as hexagonal screws). In traditional technology, each screw requires external force to be applied from one end before it can be screwed with an electric screwdriver. With a large number of plates and even more screws, the operation is cumbersome and the fixing efficiency is low. After using only external hexagonal slots for fixing and locking, the screws become stuck due to tension and cannot be easily removed. At the same time, long-term use of electric screwdrivers for tightening may cause wear and slippage of the hexagonal slots, affecting the locking stability and increasing the time cost and operational difficulty in the production process. This utility model proposes a new solution to the above problems. Utility Model Content

[0003] To overcome at least one of the aforementioned drawbacks, this utility model provides a screw clamping fixture. The objective of this utility model can be achieved by employing the following technical solution: This application provides a screw clamping fixture, including: The fixing part includes a fixing plate; The clamping part includes a first clamping plate and a second clamping plate respectively disposed on both sides of the fixing part. Both the first clamping plate and the second clamping plate are movably connected to the fixing plate. The first clamping plate can contact and enclose the fixing plate to form a plurality of first locking grooves, and the second clamping plate can contact and enclose the fixing plate to form a plurality of second locking grooves. The axes of the first locking grooves and the second locking grooves are arranged along the thickness direction of the fixing part to accommodate the screw. The positions of the first clamping plate and the second clamping plate are adjustable so that the first locking grooves and the second locking grooves can switch between a closed locking state and an open releasing state.

[0004] In one possible implementation, the first locking groove and the second locking groove are hexagonal grooves used to fix the hexagonal screw.

[0005] In one possible implementation, the fixing plate has a plurality of first protrusions and first grooves on both sides, and the first protrusions and first grooves are arranged at intervals along a first direction. The first clamping plate includes a first clamping body. The first clamping body is provided with a plurality of second protrusions and second grooves on a first side facing the fixing plate. The second protrusions and second grooves are arranged at intervals along a first direction and are adapted to the first protrusions and first grooves on the first side of the fixing plate. The second clamping plate includes a second clamping body. The second clamping body has a plurality of third protrusions and third grooves on the first side facing the fixing plate. The third protrusions and third grooves are arranged at intervals along a first direction and are adapted to the first protrusions and first grooves on the second side of the fixing plate.

[0006] In one possible implementation, a first groove on the first side of the fixing plate is for the second protrusion of the first clamping plate to be inserted, and a second groove on the first clamping plate is for the first protrusion on the first side of the fixing plate to be inserted. When the first clamping plate contacts the first side of the fixing plate, a plurality of first screw fixing positions are formed at intervals along a first direction. The first screw fixing positions include three first locking grooves, one of which is located on the contact surface between the first groove and the second protrusion, and the other two first locking grooves on both sides of the first locking groove are located on the contact surface between the first protrusion and the second groove. The first groove on the second side of the fixing plate is for the third protrusion of the second clamping plate to be inserted, and the third groove of the second clamping plate is for the first protrusion on the second side of the fixing plate to be inserted. When the second clamping plate contacts the second side of the fixing plate, it forms a plurality of second screw fixing positions spaced apart along the first direction. The second screw fixing positions include three second locking grooves, one of which is located on the contact surface between the first groove and the third protrusion, and the other two second locking grooves on both sides of the second locking groove are located on the contact surface between the first protrusion and the third groove.

[0007] In one possible implementation, at least one first half-groove is provided on both the second protrusion and the second groove, and at least one second half-groove is provided on both the first protrusion and the first groove on the first side of the fixing plate, and the first half-groove and the second half-groove together form the first locking groove. The first protrusion and the first groove on the second side of the fixing plate are each provided with at least one third half-groove, and the third protrusion and the third groove are each provided with at least one fourth half-groove. The third half-groove and the fourth half-groove together form the second locking groove.

[0008] In one possible implementation, the fixing plate is provided with a plurality of positioning grooves and a plurality of fixing grooves, and the plurality of positioning grooves are spaced apart along a first direction.

[0009] In one possible implementation, a support portion is further included, wherein the fixing portion is movably connected to the clamping portion via the support portion, and the support portion includes: A first elastic support member, the first end of which is connected to the fixed plate, and the second end of which is connected to the first clamping plate, are used to apply an elastic force to the first clamping plate to move away from the fixed plate. The second elastic support member has a first end connected to the fixed plate and a second end connected to the first clamping plate, and is used to apply an elastic force to the second clamping plate to move away from the fixed plate.

[0010] In one possible implementation, the fixing plate has a plurality of receiving grooves on both sides that are adapted to the support portion, the axis of the receiving grooves is arranged along a second direction, the first direction is perpendicular to the second direction, and the first elastic support member and the second elastic support member include: A connecting post, at least a portion of which is embedded in the receiving groove, and one end of which is connected to the first clamping plate or the second clamping plate; An elastic element is disposed within the receiving groove and connected to the connecting post, for applying an elastic force to the connecting post to move away from the fixed plate.

[0011] In one possible implementation, an adjustment part is further included, which is movably connected to the fixing part and the supporting part, respectively. The fixing plate has a first through hole, the first clamping plate has a screw hole, and the second clamping plate has a second through hole. The axes of the first through hole, the second through hole, and the screw hole are all arranged along a second direction and are coaxial. The adjustment part includes: A rod, wherein the rod passes through the first through hole and the second through hole; A screwing head, the outer diameter of which is larger than the inner diameter of the second through hole, is exposed and located at one end of the rod; External thread: The other end of the rod is provided with an external thread for threaded connection with the screw hole.

[0012] In one possible implementation, a crank push rod is further included. The crank push rod is disposed on the side of the second clamping plate opposite to the fixed plate. The push rod of the crank push rod is capable of reciprocating linear movement for contacting and adjusting the position with the clamping part.

[0013] The beneficial technical effects of this utility model are as follows: According to the present disclosure, the screw clamping fixture includes a fixing part and a clamping part. The first clamping plate and the second clamping plate are arranged on both sides of the fixing plate. They are movably connected to achieve synchronous displacement and form a dynamically adjustable locking groove space, which can fix multiple screws at one time, significantly reducing the repetitive operation time of traditional single screw fastening. It can realize the rapid switching between the locking groove and the open and released state. In the locked state, the locking groove and the screw are engaged to form a rigid constraint, which effectively avoids the wear and slippage phenomenon when tightening with an electric screwdriver. It can realize the rapid fastening of screw batch fixing, which improves production efficiency. In the open and released state, the locking groove increases the space of the screw placement area, eliminates the radial tension generated after the screw is locked, and avoids the jamming problem caused by tension accumulation in traditional fixing methods. Attached Figure Description

[0014] The following are given by way of example and without limitation in the accompanying drawings: Figure 1 This diagram shows an overall structural schematic of an embodiment of the present invention from one angle. Figure 2 This diagram shows an overall structural schematic from another angle of an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the first clamping plate according to an embodiment of the present invention is shown; Figure 4 A schematic diagram of the fixing part according to an embodiment of the present invention is shown; Figure 5 A schematic diagram of the structure of the second clamping plate according to an embodiment of the present invention is shown.

[0015] In the picture: 1. Fixing part; 11. Fixing plate; 111. First protrusion; 112. First groove; 12. First through hole; 13. Fixing groove; 14. Receiving groove; 15. Positioning groove; 2. Clamping part; 21. First clamping plate; 211. First clamping body; 212. Screw hole; 2111. Second protrusion; 2112. Second groove; 22. Second clamping plate; 221. Second clamping body; 2211. Third protrusion; 22 12. Third groove; 222. Second through hole; 3. Support part; 31. First elastic support; 311. Connecting column; 312. Elastic element; 32. Second elastic support; 4. Adjustment part; 41. Rod; 42. Tightening head; 43. External thread; 5. Crank push rod; 6. First locking groove; 61. First half-groove; 62. Second half-groove; 7. Second locking groove; 71. Third half-groove; 72. Fourth half-groove. Detailed Implementation

[0016] In the following detailed disclosure, these embodiments are fully described with reference to the accompanying drawings. In order to enable those skilled in the art to understand and clarify the technical solution of this utility model more clearly, the embodiments described below are not limited thereto. The present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings.

[0017] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] This application provides a screw clamping fixture, such as Figures 1-5 As shown, the device includes a fixing part 1 and a clamping part 2. The fixing part 1 includes a fixing plate 11, and the clamping part 2 includes a first clamping plate 21 and a second clamping plate 22 respectively disposed on both sides of the fixing part 1. The first clamping plate 21 and the second clamping plate 22 are movably connected to the fixing plate 11. The first clamping plate 21 can contact and enclose the fixing plate 11 to form a plurality of first locking grooves 6, and the second clamping plate 22 can contact and enclose the fixing plate 11 to form a plurality of second locking grooves 7. The axes of the first locking grooves 6 and the second locking grooves 7 are arranged along the thickness direction of the fixing part 1 to accommodate the screw. The positions of the first clamping plate 21 and the second clamping plate 22 are adjustable so that the first locking grooves 6 and the second locking grooves 7 can switch between a closed locking state and an open releasing state.

[0020] The screw clamping fixture provided in this embodiment includes a fixing part 1 and a clamping part 2. The first clamping plate 21 and the second clamping plate 22 are arranged on both sides of the fixing plate 11 and are movably connected to achieve synchronous displacement to form a dynamically adjustable locking groove space. This allows multiple screws to be fixed at once, significantly reducing the repetitive operation time of traditional single-screw fastening. By adjusting the position of the first clamping plate 21 and the second clamping plate 22, the locking groove can be quickly switched between a closed locking state and an open releasing state. In the closed locking state, the locking groove engages with the screw to form a rigid constraint, effectively avoiding wear and slippage when tightening with an electric screwdriver. This enables rapid fastening of batch screw fastening, improving production efficiency. In the open releasing state, the locking groove increases the space of the screw placement area, eliminates the radial tension generated after the screw is locked, and avoids the jamming problem caused by tension accumulation in traditional fixing methods.

[0021] The first locking groove 6 and the second locking groove 7 formed by the first clamping plate 21, the second clamping plate 22 and the fixing plate 11 are arranged along the thickness direction to ensure that multiple screws can be accommodated at the same time and kept in parallel positioning.

[0022] When the clamping plate moves towards the fixed plate 11, the locking groove closes to form a rigid constraint, effectively preventing the screw from rotating and slipping during the locking process. When the clamping plate moves in the opposite direction and separates from the fixed plate 11, the space of the locking groove expands to actively release the radial tension of the screw, avoiding the jamming problem caused by material deformation in traditional fixtures. A single operation can simultaneously control the displacement of the first clamping plate 21 and the second clamping plate 22 on both sides of the fixed plate 11, achieving rapid state switching and reducing operational complexity.

[0023] In one possible implementation, such as Figure 1 As shown, the first locking groove 6 and the second locking groove 7 are hexagonal grooves used to fix the hexagonal screw.

[0024] The locking groove has an external hexagonal structure that fits perfectly with the face of the hexagonal screw, ensuring that the screw is fixed without radial displacement during the locking process. Through the enclosure effect of the clamping plate and the fixing plate 11, the first locking groove 6 and the second locking groove 7 form a complete hexagonal constraint space in the combined locking state, which can accommodate multiple screws at the same time and keep them in parallel positioning. This effectively resists the rotational force when the electric screwdriver is tightened, preventing the screw from slipping or wearing. The full contact between the groove wall of the locking groove and the screw disperses local stress and improves the locking stability. After the clamping plate separates from the fixing plate 11, the hexagonal groove expands the groove space to release the constraint force on the screw, actively releasing the radial tension generated by the screw during locking, which facilitates the quick removal and placement of the screw.

[0025] In one possible implementation, such as Figures 1-5As shown, the fixing plate 11 has a plurality of first protrusions 111 and first grooves 112 on both sides, and the first protrusions 111 and first grooves 112 are arranged at intervals along the first direction; the first clamping plate 21 includes a first clamping body 211, and the first clamping body 211 has a plurality of second protrusions 2111 and second grooves 2112 on the first side facing the fixing plate 11, and the second protrusions 2111 and second grooves 2112 are arranged at intervals along the first direction and are adapted to the first protrusions 111 and first grooves 112 on the first side of the fixing plate 11; the second clamping plate 22 includes a second clamping body 221, and the second clamping body 221 has a plurality of third protrusions 2211 and third grooves 2212 on the first side facing the fixing plate 11, and the third protrusions 2211 and third grooves 2212 are arranged at intervals along the first direction and are adapted to the first protrusions 111 and first grooves 112 on the second side of the fixing plate 11.

[0026] The engagement depth of the protrusion and the groove must cover the entire stroke of the clamping plate, that is, to ensure effective interlocking during the sliding process when the first locking groove 6 and the second locking groove 7 switch between the merging and locking state and the opening and releasing state.

[0027] The protrusions / grooves on both sides of the fixing plate 11 and the protrusions / grooves of the clamping plate form an interlocking structure. The engagement of the protrusions and grooves provides linear guidance during the movement of the clamping plate, ensuring that the clamping plate moves only in a straight line along a second direction that is perpendicular to the first direction, limiting lateral offset and ensuring the stability of the locking groove switching opening and closing state.

[0028] Understandably, the protrusions and grooves can use a rounded transition to reduce stress concentration and facilitate assembly.

[0029] Among them, the multiple sets of convex and concave structures disperse the locking force to multiple contact surfaces, reduce stress concentration at a single point, and improve the structural stability when the electric screwdriver is tightened. The interlocking structure forms a mechanical stop in the combined state, which effectively resists the circumferential torsional force generated when the screw is locked, and prevents the clamping plate and the fixing plate 11 from sliding relative to each other.

[0030] Understandably, by adjusting the spacing or number of protrusions and grooves, the fixing requirements of screws of different sizes can be adapted to meet the needs of different scenarios.

[0031] In one possible implementation, such as Figures 1-5As shown, the first groove 112 on the first side of the fixing plate 11 is into which the second protrusion 2111 of the first clamping plate 21 is inserted, and the second groove 2112 on the first clamping plate 21 is into which the first protrusion 111 on the first side of the fixing plate 11 is inserted. When the first clamping plate 21 contacts the first side of the fixing plate 11, it forms a plurality of first screw fixing positions spaced apart along the first direction. The first screw fixing positions include three first locking grooves 6. One of the first locking grooves 6 is located at the contact surface between the first groove 112 and the second protrusion 2111, and the other two first locking grooves 6 on both sides of the first locking groove 6 are located at the contact surface between the first protrusion 111 and the second groove 2112. The first groove 112 on the second side of the fixing plate 11 is for the third protrusion 2211 of the second clamping plate 22 to be inserted, and the third groove 2212 of the second clamping plate 22 is for the first protrusion 111 on the second side of the fixing plate 11 to be inserted. When the second clamping plate 22 contacts the second side of the fixing plate 11, it forms a plurality of second screw fixing positions spaced apart along the first direction. The second screw fixing positions include three second locking grooves 7. One of the second locking grooves 7 is located on the contact surface between the first groove 112 and the third protrusion 2211, and the other two second locking grooves 7 on both sides of the second locking groove 7 are located on the contact surface between the first protrusion 111 and the third groove 2212.

[0032] In this system, the clamping plate and the fixing plate 11 are aligned in the first direction when closed by bidirectional embedding of the protrusion and the groove. The locking grooves distributed on the contact surface achieve spatial geometric constraint in the merged state, preventing the screw from rotating or moving when it is locked.

[0033] Each screw fixing position is equipped with a heightening mesh plate. The three locking grooves of the screw fixing position are located on the convex and concave contact surfaces in the first direction, forming a triangular mechanical support structure, which evenly transmits the electric screwdriver tightening force to the fixing plate 11, avoiding deformation caused by local stress concentration.

[0034] In one possible implementation, such as Figures 1-5 As shown, at least one first half-groove 61 is provided on both the second protrusion 2111 and the second groove 2112, and at least one second half-groove 62 is provided on both the first protrusion 111 and the first groove 112 on the first side of the fixing plate 11. The first half-groove 61 and the second half-groove 62 enclose each other to form a first locking groove 6; at least one third half-groove 71 is provided on both the first protrusion 111 and the first groove 112 on the second side of the fixing plate 11, and at least one fourth half-groove 72 is provided on both the third protrusion 2211 and the third groove 2212. The third half-groove 71 and the fourth half-groove 72 enclose each other to form a second locking groove 7.

[0035] When the clamping plate approaches the fixing plate 11 until it engages with the fixing plate 11 through the convex and concave structure, the first half-groove 61 and the second half-groove 62 enclose to form a complete first locking groove 6, and the third half-groove 71 and the fourth half-groove 72 enclose to form a complete second locking groove 7, thereby achieving radial fixation of the screw.

[0036] When the first locking groove 6 and the second locking groove 7 are hexagonal grooves, the two half-grooves enclose each other to form a continuous hexagonal surface, which fully contacts the edges of the screw, effectively suppressing the circumferential slippage phenomenon when the electric screwdriver is tightened. When the first clamping plate 21 and the second clamping plate 22 are separated from the fixing plate 11, the first half-grooves 61 and the second half-grooves 62 separate and the fourth half-grooves 72 and the third half-grooves 71 separate, automatically releasing the enclosing state, expanding the space inside the groove to quickly pick up and put down the screw, while retaining the guiding function. After the electric screwdriver is tightened, it is easy to directly remove the PCB board with the screw.

[0037] Furthermore, when the first locking groove 6 / second locking groove 7 is a hexagonal groove, the first half-groove 61, the second half-groove 62, the third half-groove 71 and the fourth half-groove 72 may include three consecutive groove surfaces, and the angle between adjacent groove surfaces is 120°.

[0038] Understandably, by adjusting the size and depth of the semi-grooved section and replacing the screw clamping fixture with one of the corresponding size, the fixing requirements of screws of different specifications can be met, thus improving flexibility and adaptability.

[0039] The fixing plate 11, the first clamping plate 21, and the second clamping plate 22 can all be made of stainless steel. Stainless steel ensures that the fixing plate 11 and the clamping plates are not easily deformed when subjected to the tightening force of the electric screwdriver, and also reduces wear during the engagement of the protrusions and grooves, maintaining positioning accuracy after long-term use.

[0040] In one possible implementation, such as Figure 4 As shown, the fixing plate 11 is provided with a plurality of positioning grooves 15 and a plurality of fixing grooves 13, and the plurality of positioning grooves 15 are spaced apart along the first direction.

[0041] The stainless steel plate can be divided into three parts along the center line of the outer groove. The middle part is the fixing plate 11. The corresponding outer grooves on the fixing plate 11, the first clamping plate 21 and the second clamping plate 22 are processed according to the number, size, position and depth of the screws of the mesh plate. These grooves are locking grooves, specifically including the first half groove, the second half groove, the third half groove and the fourth half groove. The surface of the grooves can also be polished to reduce the friction between the screws and the locking grooves during the axial movement of the screws.

[0042] The screw passes through the fixing groove 13 to fix the fixing plate 11 to the base. The base may have several protrusions for embedding into the positioning groove 15 to further position the fixing plate 11, thereby improving the positional stability of the fixing plate 11. At the same time, the base and the fixing plate 11 form multi-faceted contact, so the fixing plate 11 is not easy to move when subjected to the tightening force of the electric screwdriver.

[0043] In one possible implementation, such as Figure 1 and Figure 2 As shown, the screw clamping fixture also includes a support part 3. The fixing part 1 is movably connected to the clamping part 2 through the support part 3. The support part 3 includes a first elastic support member 31 and a second elastic support member 32. The first end of the first elastic support member 31 is connected to the fixing plate 11, and the second end of the first elastic support member 31 is connected to the first clamping plate 21, for applying an elastic force to the first clamping plate 21 to move away from the fixing plate 11. The first end of the second elastic support member 32 is connected to the fixing plate 11, and the second end of the second elastic support member 32 is connected to the first clamping plate 21, for applying an elastic force to the second clamping plate 22 to move away from the fixing plate 11.

[0044] The first elastic support 31 and the second elastic support 32 generate a continuous rebound force through pre-compression deformation. The direction of the rebound force is consistent with the direction of movement of the clamping plate, providing auxiliary thrust when the clamping plate separates. The two elastic supports are symmetrically arranged to ensure that the clamping plate is subjected to balanced force, so that the distance between the first clamping plate 21 and the second clamping plate 22 and the fixed plate 11 is the same. The first locking groove 6 and the second locking groove 7 can open and close simultaneously to lock or release the screw.

[0045] In one possible implementation, such as Figure 1 , Figure 2 and Figure 4 As shown, the fixed plate 11 has several receiving grooves 14 on both sides that are adapted to the support part 3. The axis of the receiving groove 14 is arranged along the second direction, and the first direction is perpendicular to the second direction. The first elastic support 31 and the second elastic support 32 include a connecting post 311 and an elastic member 312. At least part of the connecting post 311 is embedded in the receiving groove 14. One end of the connecting post 311 is connected to the first clamping plate 21 or the second clamping plate 22. The elastic member 312 is arranged in the receiving groove 14 and connected to the connecting post 311, and is used to apply an elastic force to the connecting post 311 to move away from the direction of the fixed plate 11.

[0046] The clamping plate moves along the second direction, and the receiving groove 14 is also arranged along the second direction, providing a precise axial movement trajectory for the connecting column 311. This ensures that the elastic support deforms only along the second direction when subjected to force. The elastic force is directly transmitted to the clamping plate through the connecting column 311, simultaneously applying an elastic force to both clamping plates to move away from the fixed plate 11. When the distance between the clamping plate and the fixed plate 11 is adjusted by the adjusting part 4, the first elastic support 31 and the second elastic support 32 ensure that the distance between the first clamping plate 21 and the fixed plate 11, and the distance between the second clamping plate 22 and the fixed plate 11, are basically the same.

[0047] In one possible implementation, such as Figures 1-5 As shown, the screw clamping fixture also includes an adjustment part 4, which is movably connected to the fixing part 1 and the support part 3 respectively. The fixing plate 11 has a first through hole 12, the first clamping plate 21 has a screw hole 212, and the second clamping plate 22 has a second through hole 222. The axes of the first through hole 12, the second through hole 222 and the screw hole 212 are all arranged along the second direction and are coaxial. The adjustment part 4 includes a rod 41, a screwing head 42 and an external thread 43. The rod 41 passes through the first through hole 12 and the second through hole 222. The outer diameter of the screwing head 42 is larger than the inner diameter of the second through hole 222. The screwing head 42 is exposed and located at one end of the rod 41. The other end of the rod 41 is provided with an external thread 43 for threaded connection with the screw hole 212.

[0048] The first through hole 12, the second through hole 222, and the screw hole 212 are coaxially arranged along the second direction to ensure the precise movement trajectory of the rod 41 in the second direction and avoid thread wear or clamping plate offset caused by off-center load. The external thread 43 at the end of the rod 41 and the screw hole 212 cooperate to form a self-locking structure, thereby fixing the position of the rod 41 and the first clamping plate 21. The screwing head 42 restricts the position of the second clamping plate 22 through its outer diameter, thereby fixing the position of the rod 41 and the second clamping plate 22. The distance between the first clamping plate 21 and the second clamping plate 22 can be adjusted and rigidly fixed by rotating the screwing head 42. The first elastic support 31 and the second elastic support 32 are symmetrically arranged so that the distance between the first clamping plate 21 and the fixed plate 11 and the distance between the second clamping plate 22 and the fixed plate 11 are basically the same.

[0049] Understandably, the exposed screw head 42 allows for manual or tool-operated adjustment of the clamping force without disassembly, thus improving processing efficiency.

[0050] In one possible implementation, such as Figure 1 and Figure 2 As shown, the screw clamping fixture also includes a crank push rod 5, which is disposed on the side of the second clamping plate 22 away from the fixed plate 11. The push rod of the crank push rod 5 can move back and forth linearly to contact the clamping part 2 and adjust its position.

[0051] The crank push rod 5 is located on the side of the second clamping plate 22 away from the fixed plate 11, which converts the reciprocating linear motion of the crank push rod 5 in the second direction into the precise displacement of the second clamping plate 22, thereby realizing the rapid adjustment of the clamping distance and maintaining the stability of the force transmission direction.

[0052] Specifically, the position of the second clamping plate 22 is adjusted by the crank push rod 5, the distance between the first clamping plate 21 and the second clamping plate is adjusted by rotating the screw head 42 to drive the rod 41 to rotate, and the elastic member 312 applies elastic force to the first clamping plate 21 and the second clamping plate 22 simultaneously to adjust the distance between the two clamping plates and the fixed plate 11 to be consistent, so as to ensure that the first locking groove 6 and the second locking groove 7 can switch synchronously between the combined locking state and the open release state.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0055] In view of the detailed description above, these and other changes can be made to these embodiments. This written description includes embodiments of the best mode disclosed in this utility model. The patent scope of this utility model is defined by the claims, which are not limited by this disclosure. The protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in this utility model, based on the technical solution and concept of this utility model, are within the protection scope of this utility model.

Claims

1. A screw clamping jig characterized by, include: The fixing part includes a fixing plate; The clamping part includes a first clamping plate and a second clamping plate respectively disposed on both sides of the fixing part. Both the first clamping plate and the second clamping plate are movably connected to the fixing plate. The first clamping plate can contact and enclose the fixing plate to form a plurality of first locking grooves, and the second clamping plate can contact and enclose the fixing plate to form a plurality of second locking grooves. The axes of the first locking grooves and the second locking grooves are arranged along the thickness direction of the fixing part to accommodate the screw. The positions of the first clamping plate and the second clamping plate are adjustable so that the first locking grooves and the second locking grooves can switch between a closed locking state and an open releasing state.

2. The screw clamping jig according to claim 1, characterized by The first locking groove and the second locking groove are hexagonal grooves used to fix the hexagonal screw.

3. The screw clamping fixture according to claim 1, characterized in that, Both sides of the fixing plate are provided with a plurality of first protrusions and first grooves, and the first protrusions and first grooves are arranged at intervals along a first direction; The first clamping plate includes a first clamping body. The first clamping body is provided with a plurality of second protrusions and second grooves on a first side facing the fixing plate. The second protrusions and second grooves are arranged at intervals along a first direction and are adapted to the first protrusions and first grooves on the first side of the fixing plate. The second clamping plate includes a second clamping body. The second clamping body has a plurality of third protrusions and third grooves on the first side facing the fixing plate. The third protrusions and third grooves are arranged at intervals along a first direction and are adapted to the first protrusions and first grooves on the second side of the fixing plate.

4. The screw clamping fixture according to claim 3, characterized in that, The first groove on the first side of the fixing plate is for the second protrusion of the first clamping plate to be inserted, and the second groove of the first clamping plate is for the first protrusion on the first side of the fixing plate to be inserted. When the first clamping plate contacts the first side of the fixing plate, a plurality of first screw fixing positions are formed at intervals along the first direction. The first screw fixing positions include three first locking grooves, one of which is located on the contact surface between the first groove and the second protrusion, and the other two first locking grooves on both sides of the first locking groove are located on the contact surface between the first protrusion and the second groove. The first groove on the second side of the fixing plate is for the third protrusion of the second clamping plate to be inserted, and the third groove of the second clamping plate is for the first protrusion on the second side of the fixing plate to be inserted. When the second clamping plate contacts the second side of the fixing plate, it forms a plurality of second screw fixing positions spaced apart along the first direction. The second screw fixing positions include three second locking grooves, one of which is located on the contact surface between the first groove and the third protrusion, and the other two second locking grooves on both sides of the second locking groove are located on the contact surface between the first protrusion and the third groove.

5. The screw clamping fixture according to claim 3, characterized in that, The second protrusion and the second groove are each provided with at least one first half slot, and the first protrusion and the first groove on the first side of the fixing plate are each provided with at least one second half slot. The first half slot and the second half slot together form the first locking groove. The first protrusion and the first groove on the second side of the fixing plate are each provided with at least one third half-groove, and the third protrusion and the third groove are each provided with at least one fourth half-groove. The third half-groove and the fourth half-groove together form the second locking groove.

6. The screw clamping jig according to claim 1, characterized by The fixing plate is provided with a plurality of positioning grooves and a plurality of fixing grooves, and the plurality of positioning grooves are spaced apart along the first direction.

7. The screw holding jig according to any one of claims 3 to 6, characterized by It also includes a support portion, through which the fixing portion is movably connected to the clamping portion, the support portion comprising: A first elastic support member, the first end of which is connected to the fixed plate, and the second end of which is connected to the first clamping plate, are used to apply an elastic force to the first clamping plate to move away from the fixed plate. The second elastic support member has a first end connected to the fixed plate and a second end connected to the first clamping plate, and is used to apply an elastic force to the second clamping plate to move away from the fixed plate.

8. The screw clamping fixture according to claim 7, characterized in that, The fixing plate has several receiving grooves on both sides that are adapted to the support portion. The axis of the receiving groove is arranged along the second direction, and the first direction is perpendicular to the second direction. The first elastic support and the second elastic support include: A connecting post, at least a portion of which is embedded in the receiving groove, and one end of which is connected to the first clamping plate or the second clamping plate; An elastic element is disposed within the receiving groove and connected to the connecting post, for applying an elastic force to the connecting post to move away from the fixed plate.

9. The screw clamping jig according to claim 7, characterized by It also includes an adjustment part, which is movably connected to the fixing part and the support part respectively. The fixing plate has a first through hole, the first clamping plate has a screw hole, and the second clamping plate has a second through hole. The axes of the first through hole, the second through hole, and the screw hole are all arranged along a second direction and are coaxial. The adjustment part includes: A rod, wherein the rod passes through the first through hole and the second through hole; A screwing head, the outer diameter of which is larger than the inner diameter of the second through hole, is exposed and located at one end of the rod; External thread: The other end of the rod is provided with an external thread for threaded connection with the screw hole.

10. The screw clamping jig according to claim 9, characterized by It also includes a crank push rod, which is disposed on the side of the second clamping plate opposite to the fixed plate. The push rod of the crank push rod can reciprocate linearly for contacting and adjusting the position with the clamping part.

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