Quick dismounting and clamping device for TIP headstock

Abstract

The invention relates to the field of experimental apparatuses, and particularly discloses a TIP headstock quick dismounting and clamping device which comprises a frame base, a positioning mechanism, a clamping mechanism and a locking assembly, the frame base is used for bearing a TIP headstock, and the positioning mechanism is used for positioning the TIP headstock on the frame base; the clamping mechanism comprises at least two rotating pieces, and a protruding part is arranged on one side of each rotating piece. The rotating part is rotationally arranged on the frame base and is configured to rotate between a first position and a second position, when the rotating part is located at the first position, the protruding part abuts against the TIP head frame and is used for limiting the TIP head frame from moving upwards, and when the rotating part is located at the second position, the protruding part is far away from the TIP head frame and enables the TIP head frame to be unlocked; the locking assembly is used for locking the rotating piece at the first position. The TIP headstock can be rapidly positioned and fixed, the stability is good, and locking and unlocking operation is convenient and fast.

Description

Technical Field

[0001] The present application relates to the field of experimental instruments, and in particular to a TIP head frame quick-disassembly clamping device. Background Art

[0002] TIP head, also known as pipette tip, can be used on automated or semi-automated pipetting equipment to absorb and inject solutions. It is one of the essential experimental consumables in biological and chemical experiments.

[0003] The TIP head frame is a device used to fix and support the TIP head. When in use, the TIP head frame is usually installed on the frame seat in the TIP head box. In order to fix the TIP head frame, a spring is usually provided in the TIP head box. The TIP head frame is fixed on the frame seat by the spring. However, due to the long-term stress or vibration of the spring, its elasticity may gradually weaken, resulting in a decrease in the fixing stability; in addition, if the TIP head frame and the spring are not well matched, the TIP head frame is prone to loosening or falling off. Summary of the invention

[0004] In order to improve the problem of insufficient stability of a TIP head frame fixed by a spring clip, the present application provides a clamping mechanism and a TIP head frame quick-disassembly clamping device.

[0005] The present application provides a clamping mechanism that adopts the following technical solution: A clamping mechanism, comprising: There are at least two fixing members, which are respectively in contact with two sides of the clamped object; a rotating member, rotatably disposed on the fixed member, the rotating member being configured to rotate between a first position and a second position; a protrusion being disposed on one side of the rotating member, and when the rotating member is in the first position, the lower end surface of the protrusion abuts against the upper end surface of the clamped object to limit the upward movement of the clamped object; when the rotating member is in the second position, the protrusion is away from the clamped object to release the lock of the clamped object; The locking assembly is used to lock the rotating member at the first position.

[0006] Furthermore, the locking assembly includes a spring ball plunger mounted on the fixing member, the rotating member is provided with a locking hole for accommodating the ball head of the spring ball plunger, and when the rotating member is in the first position, the ball head of the spring ball plunger is inserted into the locking hole.

[0007] Furthermore, the locking assembly also includes a rotation limiting structure for limiting the rotation angle of the rotating member.

[0008] Furthermore, the rotation limiting structure includes a limiting column fixedly connected to the fixing member, and a wedge-shaped surface is provided at a corner of the rotating member.

[0009] When the rotating member is located at the second position, the limiting column abuts against one end of the wedge-shaped surface to play a limiting role.

[0010] Furthermore, the rotation limiting structure further comprises a limiting ridge fixedly arranged on one side of the wedge-shaped surface, and when the rotating member is located at the second position, the limiting column abuts against the limiting ridge.

[0011] The limiting ridge limits the rotation track of the rotating member, thereby limiting the rotation angle of the rotating member within a certain range, so that the rotating member can only rotate between the first position and the second position. In this way, excessive rotation of the rotating member is avoided and the convenience of operation is improved.

[0012] Furthermore, a spacing is provided between the rotating member and the fixed member, and the spacing is not greater than a travel distance of the ball head in the spring ball head plunger.

[0013] Furthermore, the fixing member is provided with a fixing screw, the rotating member is provided with a threaded hole adapted to the thread of the fixing screw, and the rotating member is provided with a distance limiting structure for controlling the distance between the rotating member and the fixing member.

[0014] When the distance between the rotating part and the fixed part is greater than the stroke distance of the ball head in the spring ball head plunger, even if the ball head is fully extended, it cannot be inserted into the locking hole, resulting in failure of the spring ball head plunger and failure to lock the rotating part. Therefore, it is necessary to use a distance limiting structure to control the distance between the rotating part and the fixed part so that it is not greater than the stroke distance of the ball head in the spring ball head plunger, thereby avoiding failure of the spring ball head plunger due to excessive distance between the rotating part and the fixed part.

[0015] Furthermore, the distance limiting structure includes a set screw threadedly connected to the rotating member, an end of the set screw and an end of the fixing screw are both located in the threaded hole, and the end of the set screw abuts against the end of the fixing screw.

[0016] Before installing the rotating part, screw the set screw into the threaded hole to a certain depth; when installing the rotating part, pass the set screw through the through hole on the fixed part and then screw it into the threaded hole on the rotating part until the end of the set screw abuts against the end of the set screw, thereby fixing the distance between the rotating part and the fixed part.

[0017] By adjusting the depth of the set screw screwed into the threaded hole, the depth of the fixing screw screwed into the threaded hole can be controlled, thereby adjusting the distance between the rotating part and the fixed part, so that the ball head of the spring ball head plunger works within a suitable stroke range, which can avoid the spring ball head plunger failure caused by too large a distance between the rotating part and the fixed part, and avoid the spring compression difficulty in the spring ball head plunger caused by too small a distance between the rotating part and the fixed part.

[0018] Furthermore, the threaded hole is a blind hole, and the end of the fixing screw abuts against the bottom wall of the threaded hole.

[0019] When installing the rotating member, the fixing screw is passed through the through hole on the fixing member and then screwed into the threaded hole on the rotating member until the end of the fixing screw abuts against the bottom wall of the threaded hole, thereby fixing the distance between the rotating member and the fixing member.

[0020] Furthermore, a shift block is fixedly provided on the rotating member for driving the rotating member to rotate.

[0021] The operator can conveniently drive the rotating part to rotate by turning the dial block, thereby improving the convenience of locking and unlocking the TIP head frame.

[0022] The TIP headstock quick disassembly clamping device provided in this application adopts the following technical solution: A TIP head frame quick disassembly clamping device, comprising: The frame is used to carry the TIP head frame; A positioning mechanism, used for positioning the TIP head frame on the frame seat; A clamping mechanism is used to fix the TIP head frame to the frame seat, and the clamping mechanism includes: A fixing member, fixedly arranged on the frame seat, wherein at least two fixing members are arranged, respectively abutting against two sides of the TIP head frame; a rotating member, rotatably disposed on the fixed member, the rotating member being configured to rotate between a first position and a second position; a protrusion being disposed on one side of the rotating member, and when the rotating member is in the first position, the lower end surface of the protrusion abuts against the upper end surface of the TIP head frame to limit the upward movement of the TIP head frame; when the rotating member is in the second position, the protrusion is away from the TIP head frame to unlock the TIP head frame; The locking assembly is used to lock the rotating member at the first position.

[0023] Furthermore, side wings are provided on both sides of the TIP head frame, and when the rotating member is in the first position, the lower end surface of the protrusion abuts against the upper end surface of the side wing.

[0024] Furthermore, the side surface of the fixing member abuts against the side wing.

[0025] When the TIP head frame needs to be fixed on the frame seat, the rotating part is rotated toward the TIP head frame so that the rotating part reaches the first position. The ball head in the spring ball head plunger extends out under the deformation force of the spring and inserts into the locking hole, thereby locking the rotating part on the fixed part; at this time, the lower end surface of the raised part on the rotating part abuts against the upper end surface of the side wing of the TIP head frame, thereby limiting the upward movement of the TIP head frame and preventing the TIP head frame from falling off the frame seat.

[0026] Compared with the commonly used method of fixing the TIP head frame with spring clips, the fixing method provided by the present application is not easily affected by factors such as vibration, and there is no problem of the elasticity of the spring clips being weakened due to long-term use. Therefore, the fixing method of the present application can make the TIP head frame more stable.

[0027] When it is necessary to release the lock of the TIP head frame on the frame seat, the rotating part is rotated in the direction away from the TIP head frame. During this process, the lower end face of the rotating part squeezes the ball head in the spring ball head plunger, compressing the spring in the spring ball head plunger. As the rotating part rotates, the ball head slides out of the locking hole, thereby releasing the position lock of the rotating part on the fixed part; at this time, the lower end face of the raised part on the rotating part no longer abuts against the upper end face of the side wing of the TIP head frame, thereby realizing the rapid unlocking of the TIP head frame and facilitating the removal of the TIP head frame from the frame seat.

[0028] Furthermore, the positioning mechanism includes flanges arranged on both sides of the frame, and the flanges are engaged and matched with the side wings.

[0029] When the TIP head frame is installed on the frame seat, the side wings on both sides of the TIP head frame are embedded in the convex edges on both sides of the frame seat, so as to position the TIP head frame.

[0030] Furthermore, the positioning mechanism includes two corner limit blocks arranged at one end of the frame, and the two corner limit blocks are respectively abutted against two corners of the TIP head frame.

[0031] When the TIP head frame is installed on the frame seat, the two corner limit blocks are respectively in contact with the two corners of the TIP head frame, thereby positioning the TIP head frame.

[0032] Furthermore, the positioning mechanism includes matching positioning columns and positioning grooves respectively arranged on the frame base and the TIP head frame.

[0033] When installing the TIP head frame, the positioning column is embedded in the positioning groove, thereby positioning the TIP head frame in the installation direction.

[0034] Furthermore, the positioning mechanism includes side limit blocks arranged on both sides of the frame seat, and the two side limit blocks are respectively abutted against two sides of the TIP head frame.

[0035] When the TIP head frame is installed on the frame seat, the two side limit blocks are respectively in contact with the two sides of the TIP head frame, so as to position the TIP head frame.

[0036] The above multiple positioning mechanisms simultaneously position the TIP head frame, which is beneficial to improving the positioning accuracy and fixing stability, facilitating the rapid installation of the TIP head frame, and effectively preventing the TIP head frame from moving in the horizontal plane during use.

[0037] Furthermore, the two side limit blocks are diagonally arranged on the frame seat.

[0038] Furthermore, the two rotating members are diagonally arranged on the frame, and the two side limit blocks and the two rotating members are respectively located at the four corners of the frame.

[0039] This is helpful to improve the positioning accuracy and fixation stability of the TIP head frame.

[0040] In summary, this application includes the following beneficial technical effects: The present application has a simple structure, and uses multiple positioning mechanisms to locate the direction and position of the TIP head frame, and uses a clamping mechanism to limit the upward movement of the TIP head frame, thereby preventing the TIP head frame from falling off the frame seat, improving the stability of the TIP head frame during use, and improving the problem of unreliable spring fixation; and the unlocking operation of the clamping mechanism is convenient, and the TIP head frame can be easily removed from the frame seat after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 is a schematic diagram of the overall structure of a clamping mechanism according to an embodiment of the present application (when the rotating member is in the first position); Figure 2 is a schematic diagram of the overall structure of a clamping mechanism according to an embodiment of the present application (when the rotating member is in the second position); Figure 3 It is a partial exploded schematic diagram of a clamping mechanism in an embodiment of the present application; Figure 4 It is a partial exploded schematic diagram of another angle of a clamping mechanism in an embodiment of the present application; Figure 5 It is a partial cross-sectional schematic diagram of a clamping mechanism according to an embodiment of the present application; Figure 6 This is a schematic diagram of the overall structure of a TIP head frame quick-disassembly clamping device according to an embodiment of the present application (when the rotating member is in the first position); Figure 7 This is a schematic diagram of the overall structure of a TIP head frame quick-disassembly clamping device according to an embodiment of the present application (when the rotating member is in the second position); Figure 8This is a schematic diagram of the exploded structure of a TIP headstock quick-disassembly clamping device according to an embodiment of the present application; Fig. 9 It is a schematic diagram of the exploded structure of a TIP headstock quick-disassembly clamping device according to an embodiment of the present application.

[0042] 1. Base; 12. Support column; 13. Support seat; 131. Protruding edge; 132. Positioning column; 133. Corner limit block; 2. TIP head frame; 21. Side wing; 22. Positioning groove; 3. Positioning mechanism; 31. Side limit block; 4. Clamping mechanism; 41. Rotating member; 411. Protruding portion; 412. Wedge-shaped surface; 413. Limiting ridge; 414. Threaded hole; 415. Push block; 42. Fixing member; 421. Limiting column; 422. Through hole; 423. Mounting hole; 43. Fixing screw; 44. Set screw; 45. Spring ball plunger; 46. Locking hole. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-9 This application is described in further detail.

[0044] Example 1 The present application embodiment discloses a clamping mechanism. Figure 1 and Figure 2 , the clamping mechanism includes: There are at least two fixing members 42, which are respectively abutted against two sides of the clamped object; The rotating member 41 is rotatably disposed on the fixed member 42, and the rotating member 41 is configured to rotate between a first position and a second position; a protrusion 411 is disposed on one side of the rotating member 41, and when the rotating member 41 is in the first position, Figure 1 As shown, the lower end surface of the protrusion 411 abuts against the upper end surface of the clamped object to limit the upward movement of the clamped object; when the rotating member 41 is in the second position, as shown Figure 2 As shown, the protrusion 411 is away from the clamped object, so that the clamped object is unlocked; A locking assembly is also included for locking the rotating member 41 in the first position.

[0045] Specifically, refer to Figure 3 and Figure 4 The fixing member 42 is provided with a through hole 422 for the fixing screw 43 to pass through, and the rotating member 41 is provided with a threaded hole 414 that is threadably matched with the fixing screw 43. During installation, the fixing screw 43 is passed through the through hole 422 on the fixing member 42, and then threadedly connected with the rotating member 41, so that the rotating member 41 is rotatably connected with the fixing member 42, and the rotation axis is vertically arranged. The fixing member 42, the rotating member 41, the fixing screw 43 and other components can all be made of plastic or metal.

[0046] Reference Figure 3 and Figure 4 The protrusion 411 is disposed on the side of the rotating member 41 close to the clamped object, and the protrusion 411 and the rotating member 41 can be processed in an integral manner. When the rotating member 41 rotates to the first position, the side surface of the rotating member 41 is flush with the side surface of the fixing member 42, and the lower end surface of the protrusion 411 abuts against the upper end surface of the clamped object, thereby limiting the upward movement of the clamped object.

[0047] In order to ensure the stability of the clamped object and avoid the loosening of the rotating member 41 due to external disturbances such as vibration, which may cause the clamped object to fall off, the present application uses a locking assembly to lock the rotating member 41 in the first position, as follows: Reference Figure 3 and Figure 4 The locking assembly includes a spring ball plunger 45 mounted on the fixing member 42. The spring ball plunger 45 can be fixed in the mounting hole 423 on the upper end surface of the fixing member 42 by interference fit, threading or bonding. The spring ball plunger 45 includes a base and a ball head elastically connected to the base by a spring. As the spring expands and contracts, the ball head can extend or retract within a certain range of travel.

[0048] Further, refer to Figure 3 , Figure 4 and Figure 5 A locking hole 46 is provided on the rotating member 41 at a position corresponding to the spring ball plunger 45, for accommodating the ball head of the spring ball plunger 45. In this embodiment, the locking hole 46 is provided through the rotating member 41; in other feasible embodiments, the locking hole 46 may also be a blind hole provided on the lower end surface of the rotating member 41.

[0049] In order to achieve the locking and unlocking of the rotating member 41, it is necessary to consider the distance between the rotating member 41 and the fixed member 42 during installation. If the distance between the rotating member 41 and the fixed member 42 is greater than the stroke distance of the ball head in the spring ball head plunger 45, even if the ball head is fully extended, it cannot be inserted into the locking hole 46, resulting in failure of the spring ball head plunger 45 and failure to achieve the locking of the rotating member 41. On the other hand, if the distance between the rotating member 41 and the fixed member 42 is too small, it may cause difficulty in compressing the spring in the spring ball head plunger 45. Further, if the distance between the rotating member 41 and the fixed member 42 is less than the stroke distance of the ball head in the spring ball head plunger 45, but this distance is large, when the ball head is inserted into the locking hole 46, the pressing force between the ball head and the locking hole 46 is not large enough, which may cause the locking of the rotating member 41 to be unstable. Therefore, it is necessary to use a distance limiting structure to control the distance between the rotating member 41 and the fixed member 42 so that it is kept within an appropriate range.

[0050] Specifically, in this embodiment, refer to Figure 3 , Figure 4 and Figure 5 A threaded hole 414 is formed through the rotating member 41, and the distance limiting structure includes a set screw 44 threadedly connected to the rotating member 41, and the end of the set screw 44 and the end of the fixing screw 43 are both located in the threaded hole 414, and the end of the set screw 44 abuts against the end of the fixing screw 43.

[0051] Before installing the rotating member 41, first screw the set screw 44 into the threaded hole 414 to a certain depth; when installing the rotating member 41, pass the fixing screw 43 through the through hole 422 on the fixed member 42 and then screw it into the threaded hole 414 on the rotating member 41 until the end of the fixing screw 43 abuts against the end of the set screw 44, thereby fixing the distance between the rotating member 41 and the fixed member 42.

[0052] By adjusting the depth of the set screw 44 screwed into the threaded hole 414, the depth of the fixing screw 43 screwed into the threaded hole 414 can be controlled, thereby adjusting the distance between the rotating member 41 and the fixed member 42, so that the ball head of the spring ball head plunger 45 works within a suitable stroke range, which can avoid the distance between the rotating member 41 and the fixed member 42 being too large to cause the spring ball head plunger 45 to fail, and can also avoid the distance between the rotating member 41 and the fixed member 42 being too small to cause the spring in the spring ball head plunger 45 to be difficult to compress.

[0053] As another implementation of the distance limiting structure, the threaded hole 414 is a blind hole opened on the lower end surface of the rotating member 41. When installing the rotating member 41, the fixing screw 43 is passed through the through hole 422 on the fixing member 42 and then screwed into the threaded hole 414 on the rotating member 41 until the end of the fixing screw 43 abuts against the bottom wall of the threaded hole 414, thereby fixing the distance between the rotating member 41 and the fixing member 42, thereby playing a distance limiting role.

[0054] Furthermore, the locking assembly further includes a rotation limiting structure for limiting the rotation angle of the rotating member 41. Figure 1 and Figure 2 The rotation limiting structure includes a limiting column 421 fixed to a corner of the upper end surface of the fixing member 42. The limiting column 421 is vertically arranged and may be a square column, a cylinder or other shapes. A wedge-shaped surface 412 is arranged at a corner of the rotating member 41. The function of the wedge-shaped surface 412 is to prevent the limiting column 421 from interfering with the rotation of the rotating member 41. In this embodiment, the wedge-shaped surface 412 is a plane. In other feasible implementations, the wedge-shaped surface 412 may also be an arc-shaped surface. The rotation limiting structure also includes a limiting ridge 413 fixedly arranged on one side of the wedge-shaped surface 412. The limiting ridge 413 is vertically arranged. When the rotating member 41 is in the second position, such as Figure 2 As shown, the limiting post 421 abuts against the limiting ridge 413 , and this position is the end point of the outward rotation of the rotating member 41 .

[0055] The limiting ridge 413 limits the rotation track of the rotating member 41, thereby limiting the rotation angle of the rotating member 41 within a certain range, so that the rotating member 41 can only rotate between the first position and the second position. Within this range, the ball head in the spring ball head plunger 45 always abuts against the lower end surface of the rotating member 41. In this way, excessive rotation of the rotating member 41 is avoided, and the convenience of operation is improved.

[0056] As mentioned above, when the rotating member 41 rotates to the first position, the ball head of the spring ball head plunger 45 is inserted into the locking hole 46 to lock the rotating member 41, that is, the locking assembly serves to limit the rotation of the rotating member 41. The rotation of the rotating member 41 toward the inside does not need to be limited by an additional rotation limiting structure. Therefore, it is only necessary to set a limiting ridge 413 on one side of the wedge surface 412 to limit the outward rotation of the rotating member 41.

[0057] In another feasible implementation, the limiting ridge 413 may not be provided, and only the wedge surface 412 is used for limiting; when the rotating member 41 is located at the second position, the limiting column 421 abuts against one end of the wedge surface 412 to play a limiting role.

[0058] To improve the convenience of locking and unlocking, refer to Figure 3 and Figure 4 A shift block 415 is fixedly provided on the upper end surface of the rotating member 41 , and the operator can conveniently drive the rotating member 41 to rotate by shifting the shift block 415 .

[0059] The implementation principle of a clamping mechanism in the embodiment of the present application is as follows: the clamped object is positioned between the two fixing members 42, and then the rotating member 41 is rotated toward the clamped object, so that the rotating member 41 reaches the first position, and the ball head in the spring ball head plunger 45 extends out and inserts into the locking hole 46 under the deformation force of the spring, thereby locking the rotating member 41 on the fixing member 42. At this time, the lower end surface of the protrusion 411 on the rotating member 41 abuts against the upper end surface of the clamped object, thereby limiting the upward movement of the clamped object and achieving the fixation of the clamped object.

[0060] When it is necessary to release the lock of the clamped object, the rotating member 41 is rotated in the direction away from the clamped object. During this process, the lower end face of the rotating member 41 squeezes the ball head in the spring ball head plunger 45, compressing the spring in the spring ball head plunger 45. As the rotating member 41 rotates, the ball head slides out of the locking hole 46, thereby releasing the position lock of the rotating member 41 on the fixed member 42; at this time, the lower end face of the protrusion 411 on the rotating member 41 no longer abuts against the upper end face of the clamped object, thereby achieving rapid unlocking of the clamped object.

[0061] Example 2 Based on the above clamping mechanism, the present application also discloses a TIP head frame quick disassembly clamping device. Figure 6 and Figure 7 , TIP headstock quick release clamping device includes: A frame base 1, used for carrying a TIP head frame 2; A positioning mechanism 3, used for positioning the TIP head frame 2 on the frame base 1; The clamping mechanism 4 is used to fix the TIP head frame on the frame seat. The clamping mechanism 4 adopts the structure described in Example 1, including: A fixing member 42 is fixedly disposed on the frame 1, and at least two fixing members 42 are disposed, respectively abutting against two sides of the TIP head frame 2; The rotating member 41 is rotatably disposed on the fixed member 42, and the rotating member 41 is configured to rotate between a first position and a second position; a protrusion 411 is disposed on one side of the rotating member 41, and when the rotating member 41 is in the first position, the lower end surface of the protrusion 411 abuts against the upper end surface of the TIP head frame 2, so as to limit the upward movement of the TIP head frame 2; when the rotating member 41 is in the second position, the protrusion 411 is away from the TIP head frame 2, so that the TIP head frame 2 is unlocked; The locking assembly is used to lock the rotating member 41 at the first position; the structure and usage of the locking assembly are the same as those of the first embodiment.

[0062] In the present application, the function of the frame 1 is to carry the TIP head frame 2, so the shape of the frame 1 is not limited. Since the commonly used TIP head frame 2 is rectangular, such as Figure 6 As shown, the frame 1 in the present application is a rectangular frame, including a rectangular base 11, a square frame-shaped support seat 13, and four support columns 12 fixedly connected between the base 11 and the support seat 13. The TIP head frame 2 is placed on the support seat 13, and the space between the base 11 and the support seat 13 is used to accommodate the TIP head. The material of the frame 1 is not limited, and both plastic parts and metal parts can be used.

[0063] When in use, the TIP head frame 2 is first positioned on the frame base 1 through the positioning mechanism 3, and then the TIP head frame 2 is clamped and fixed on the frame base 1 through the clamping mechanism 4 in cooperation with the locking assembly, so as to limit the upward movement of the TIP head frame 2 and prevent the TIP head frame 2 from falling off the frame base 1, thereby improving the stability of the TIP head frame 2 during use. The structure and use of each mechanism are described in detail below.

[0064] Reference Figure 6 and Figure 8The positioning mechanism 3 includes a positioning column 132 fixedly arranged at a corner of the supporting seat 13, and a positioning groove 22 for accommodating the positioning column 132 is provided at one end of the TIP head frame 2. The positioning column 132 can be in the shape of a cylinder, a square column, etc., and correspondingly, the positioning groove 22 is in the shape of a circular groove, a square groove, etc. that matches the shape of the positioning column 132. In another embodiment, the positioning column 132 can be arranged at one end of the TIP head frame 2, and correspondingly, the positioning groove 22 can be arranged on the supporting seat 13. When installing the TIP head frame 2, the positioning column 132 is snapped into the positioning groove 22, so as to position the TIP head frame 2 in the installation direction.

[0065] Reference Figure 8 The TIP head frame 2 is provided with side wings 21 on opposite sides, and the side wings 21 are in an inverted L shape; the supporting seat 13 is provided with convex edges 131 on opposite sides, and the distance between the two convex edges 131 is adapted to the distance between the two side wings 21. When the TIP head frame 2 is installed on the frame 1, the side wings 21 on both sides of the TIP head frame 2 are respectively embedded in the convex edges 131 on both sides of the frame 1, so as to position the TIP head frame 2.

[0066] Reference Figure 6 , Figure 8 and Fig. 9 The positioning mechanism 3 further includes two corner limit blocks 133 fixedly arranged at one end of the supporting seat 13, and the corner limit blocks 133 can be installed on the supporting seat 13 by screws. When the TIP head frame 2 is installed on the frame seat 1, the two corner limit blocks 133 respectively abut against the two corners of the TIP head frame 2, thereby further positioning the TIP head frame 2.

[0067] Further, refer to Figure 8 and Fig. 9 The positioning mechanism 3 also includes side limit blocks 31 fixedly arranged on both sides of the support seat 13. The side limit blocks 31 are square blocks and can be installed on the support seat 13 by two screws or by two positioning pins and one screw. When the TIP head frame 2 is installed on the frame seat 1, the two side limit blocks 31 are respectively in contact with the side wings 21 on both sides of the TIP head frame 2, thereby positioning the TIP head frame 2.

[0068] As a preferred implementation, in this embodiment, two side limit blocks 31 are diagonally arranged on the supporting seat 13 to improve the accuracy of positioning the TIP head frame 2.

[0069] The present application adopts multiple positioning mechanisms 3 to simultaneously position the TIP head frame 2, including using a positioning column 132 to cooperate with the positioning groove 22, using the side wing 21 to cooperate with the convex edge 131, and using an angle limit block 133 and a side limit block 31 to limit the TIP head frame 2 in different directions, which is beneficial to improve the positioning accuracy and the fixing stability, facilitates the rapid installation of the TIP head frame 2, and can also effectively prevent the TIP head frame 2 from moving in the horizontal plane during use.

[0070] Reference Figure 7 and Fig. 9 The fixing member 42 is fixed to the support seat 13, and can be fixed by two screws, or by two positioning pins and one screw. In this embodiment, two fixing members 42 are provided, and the two side limit blocks 31 and the two fixing members 42 are respectively located at the four corners of the support seat 13. The fixing member 42 is a square block. When the TIP head frame 2 is installed on the frame seat 1, the two fixing members 42 are respectively in contact with the side wings 21 on both sides of the TIP head frame 2, and can also play a positioning role for the TIP head frame 2.

[0071] In another feasible implementation manner, the side limit block 31 may not be provided on the supporting seat 13 , and accordingly, four fixing members 42 are provided, and the four fixing members 42 are respectively located at the four corners of the supporting seat 13 .

[0072] In another feasible embodiment, four side limit blocks 31 are provided on the support seat 13 and are respectively located at the four corners of the support seat 13. The four side limit blocks 31 respectively abut against the side wings 21 on both sides of the TIP head frame 2 to play a limiting role. The fixing members 42 are still provided with two. At this time, the fixing members 42 and the side wings 21 on both sides of the TIP head frame 2 may not abut, that is, the TIP head frame 2 is not limited laterally by the fixing members 42.

[0073] The implementation principle of a TIP head frame quick-disassembly clamping device according to an embodiment of the present application is as follows: when installing the TIP head frame 2, firstly, the TIP head frame 2 is positioned on the frame seat 1 through the positioning mechanism 3, and then the rotating member 41 is rotated toward the TIP head frame 2, so that the rotating member 41 reaches the first position, and the ball head in the spring ball head plunger 45 extends out and is inserted into the locking hole 46 under the action of the deformation force of the spring, thereby locking the rotating member 41 on the fixing member 42; at this time, the lower end face of the protrusion 411 on the rotating member 41 abuts against the upper end face of the side wing 21 of the TIP head frame 2, thereby limiting the upward movement of the TIP head frame 2 and preventing the TIP head frame 2 from falling off the frame seat 1.

[0074] It can be understood that when the TIP head frame 2 is placed on the frame base 1, the upper end surface of the side wing 21 is slightly higher than the upper end surface of the fixing member 42, and the height difference between the two is the distance between the rotating member 41 and the fixing member 42. In this way, when the rotating member 41 rotates to the first position, the lower end surface of the rotating member 41 just abuts against the upper end surface of the side wing 21 to limit the upward movement of the TIP head frame 2.

[0075] Compared with the commonly used method of using spring clips to fix the TIP head frame 2, the fixing method provided by the present application is not easily affected by external disturbances such as vibration, and there is no problem of the elasticity of the spring clips being weakened due to long-term use. Therefore, the fixing method of the present application can make the TIP head frame 2 more stable.

[0076] When it is necessary to release the lock of the TIP head frame 2 on the frame seat 1, the rotating member 41 is rotated in the direction away from the TIP head frame 2. During this process, the lower end face of the rotating member 41 squeezes the ball head in the spring ball head plunger 45, compressing the spring in the spring ball head plunger 45. As the rotating member 41 rotates, the ball head slides out of the locking hole 46, thereby releasing the position lock of the rotating member 41 on the fixed member 42; at this time, the lower end face of the protrusion 411 on the rotating member 41 no longer abuts against the upper end face of the side wing 21 of the TIP head frame 2, thereby realizing the rapid unlocking of the TIP head frame 2, making it easy to remove the TIP head frame 2 from the frame seat 1.

[0077] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A clamping mechanism, characterized in that: include: There are at least two fixing members, which are respectively in contact with two sides of the clamped object; a rotating member, rotatably disposed on the fixed member, the rotating member being configured to rotate between a first position and a second position; a protrusion being disposed on one side of the rotating member, and when the rotating member is in the first position, the lower end surface of the protrusion abuts against the upper end surface of the clamped object, so as to limit the upward movement of the clamped object; When the rotating member is in the second position, the protrusion is away from the clamped object, so that the clamped object is unlocked; The locking assembly is used to lock the rotating member at the first position.

2. A clamping mechanism according to claim 1, characterized in that: The locking assembly includes a spring ball plunger mounted on the fixing member, the rotating member is provided with a locking hole for accommodating the ball head of the spring ball plunger, and when the rotating member is in the first position, the ball head of the spring ball plunger is inserted into the locking hole.

3. A clamping mechanism according to claim 1, characterized in that: The locking assembly also includes a rotation limiting structure for limiting the rotation angle of the rotating member.

4. A clamping mechanism according to claim 3, characterized in that: The rotation limiting structure comprises a limiting column fixedly connected to the fixing member, and a wedge-shaped surface is arranged at one corner of the rotating member.

5. A clamping mechanism according to claim 4, characterized in that: The rotation limiting structure further comprises a limiting ridge fixedly arranged on one side of the wedge-shaped surface, and when the rotating member is located at the second position, the limiting column abuts against the limiting ridge.

6. A clamping mechanism according to claim 2, characterized in that: A spacing is provided between the rotating member and the fixing member, and the spacing is not greater than the travel distance of the ball head in the spring ball head plunger.

7. A clamping mechanism according to claim 6, characterized in that: The fixing member is provided with a fixing screw through it, the rotating member is provided with a threaded hole adapted to the thread of the fixing screw, and the rotating member is provided with a distance limiting structure for controlling the distance between the rotating member and the fixing member.

8. A clamping mechanism according to claim 7, characterized in that: The distance limiting structure comprises a set screw threadedly connected to the rotating member, an end of the set screw and an end of the fixing screw are both located in the threaded hole, and the end of the set screw abuts against the end of the fixing screw.

9. A clamping mechanism according to claim 7, characterized in that: The threaded hole is a blind hole, and the end of the fixing screw abuts against the bottom wall of the threaded hole.

10. The clamping mechanism according to claim 1, characterized in that: A shifting block is fixedly arranged on the rotating member and is used for driving the rotating member to rotate.

11. A TIP headstock quick disassembly clamping device, characterized in that: It comprises a frame seat for carrying a TIP head frame and a positioning mechanism for positioning the TIP head frame on the frame seat, and also comprises a clamping mechanism according to any one of claims 1 to 10, wherein the clamping mechanism comprises a fixing member fixedly arranged on the frame seat, and at least two of the fixing members are respectively abutted against two sides of the TIP head frame; when the rotating member is in the first position, the lower end surface of the protrusion abuts against the upper end surface of the TIP head frame, so as to limit the upward movement of the TIP head frame; When the rotating member is in the second position, the protrusion is away from the TIP head frame, so that the TIP head frame is unlocked; and a locking assembly is also included for locking the rotating member in the first position.

12. A TIP headstock quick-disassembly clamping device according to claim 11, characterized in that: Side wings are arranged on both sides of the TIP head frame. When the rotating member is in the first position, the lower end surface of the protrusion abuts against the upper end surface of the side wing.

13. A TIP headstock quick-disassembly clamping device according to claim 12, characterized in that: The side surface of the fixing member abuts against the side wing.

14. A TIP headstock quick-disassembly clamping device according to claim 12, characterized in that: The positioning mechanism comprises convex edges arranged on both sides of the frame, and the convex edges are engaged and adapted with the side wings.

15. The TIP headstock quick-disassembly clamping device according to claim 11, characterized in that: The positioning mechanism comprises two corner limit blocks arranged at one end of the frame seat, and the two corner limit blocks are respectively abutted against two corners of the TIP head frame.

16. A TIP headstock quick-disassembly clamping device according to claim 11, characterized in that: The positioning mechanism comprises matching positioning columns and positioning grooves which are respectively arranged on the frame seat and the TIP head frame.

17. A TIP headstock quick-disassembly clamping device according to claim 11, characterized in that: The positioning mechanism comprises side limit blocks arranged on both sides of the frame seat, and the two side limit blocks are respectively abutted against the two sides of the TIP head frame.

18. A TIP headstock quick-disassembly clamping device according to claim 17, characterized in that: The two side limit blocks are arranged diagonally on the frame seat.

19. A TIP headstock quick-disassembly clamping device according to claim 18, characterized in that: The two rotating members are arranged diagonally on the frame seat, and the two side limit blocks and the two rotating members are respectively located at the four corners of the frame seat.

20. The TIP headstock quick-disassembly clamping device according to claim 11, characterized in that: There are four rotating members, which are respectively located at four corners of the frame.

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