A guide rod support

Abstract

The present application relates to a guide rod support, and relates to the field of injection parts, which includes: a support beam; and a positioning assembly, which is more than two and is arranged at intervals along the length direction of the upper surface of the support beam; the positioning assembly includes: two positioning plates, which are slidably connected to the support beam in the vertical direction, and the two positioning plates are respectively arranged on both sides of the support beam, and the two positioning plates are provided with guide surfaces, and the distance between the two guide surfaces gradually approaches from top to bottom; an elastic member, which is arranged on the support beam so that the positioning plate maintains a tendency to extend upward from the support beam; and a locking shaft, which is passed through the support beam and is slidably connected to the support beam in the vertical direction, and the two ends of the locking shaft are respectively passed through the two positioning plates, and the two ends of the locking shaft are provided with external threads, and the rotation directions of the two external threads are arranged in opposite directions, and the two external threads are respectively threadedly connected to the two positioning plates. The present application has the effect of improving the connection efficiency between the guide rod and the support.

Description

Technical Field

[0001] The present application relates to the field of injection parts, and in particular to a guide rod support. Background Art

[0002] The guide rod support is one of the important components of the injection molding machine. The movement of the injection molded parts is all completed by the guide rod installed on the guide rod support, so the installation accuracy of the guide rod is very important.

[0003] The Chinese patent application number is 2012201553268, which discloses a guide rod support for an injection molding machine, including a support plate, a support column arranged on the support plate, and a support main beam arranged on the support column. An arc-shaped load-sharing beam is arranged below the support main beam, and one end of the arc-shaped load-sharing beam is arranged on the support column and the other end is arranged on the support main beam. The support main beam is used to carry and connect the guide rod of the injection molding machine. The cross section of the guide rod of the injection molding machine is generally circular, and a part of the cylindrical surface close to the support main beam is usually milled flat so as to fit with the upper surface of the support main beam. The rod body of the guide rod of the injection molding machine is arranged along the length direction of the support main beam. The upper surface of the support main beam is processed with a plurality of threaded holes, and the guide rod of the injection molding machine is also processed with corresponding through holes. The guide rod of the injection molding machine can be fixed to the support main beam by passing bolts through the through holes and threadedly connected with the threaded holes.

[0004] With respect to the above-mentioned related technologies, the inventor believes that when the guide rod is installed on the supporting main beam, the milled plane of the guide rod should be first fitted with the upper surface of the supporting main beam, and then the hole position calibration should be performed. During calibration, it is usually necessary to first align one hole position and then calibrate the next hole position. If the lateral position of the guide rod is off, the hole position needs to be recalibrated, resulting in low connection efficiency between the guide rod and the support, and there is still room for improvement. Summary of the invention

[0005] In order to improve the connection efficiency between the guide rod and the support, the present application provides a guide rod support.

[0006] The present application provides a guide rod support adopting the following technical solution:

[0007] A guide rod support, comprising:

[0008] Support beams; and

[0009] There are two or more positioning components, which are arranged at intervals along the length direction of the upper surface of the support beam;

[0010] The positioning component comprises:

[0011] There are two positioning plates, which are slidably connected to the support beam in the vertical direction, and the two positioning plates are respectively arranged on both sides of the support beam. Both positioning plates are provided with guide surfaces, and the distance between the two guide surfaces gradually approaches from top to bottom;

[0012] an elastic member, disposed on the support beam, so that the positioning plate maintains a tendency to extend upward from the support beam; and

[0013] The locking shaft is passed through the support beam and is slidably connected to the support beam in the vertical direction. The two ends of the locking shaft are respectively passed through the two positioning plates. Both ends of the locking shaft are provided with external threads. The rotation directions of the two external threads are oppositely arranged. The two external threads are respectively threadedly connected to the two positioning plates.

[0014] By adopting the above technical solution, the locking shaft is rotated to make the two positioning plates move away from each other, the two positioning plates release the supporting beam, and the positioning plates slide out of the sliding groove driven by the elastic member, and the guide rod is placed between the two positioning plates, with the milled surface of the guide rod facing vertically downward, and the positioning plate is slid downward until the milled surface of the guide rod fits with the upper surface of the supporting wheel, and the locking shaft is rotated to make the two positioning plates close to each other and clamp the supporting beam, so that the through hole of the guide rod and the threaded hole of the supporting wheel are coplanar, so as to facilitate the alignment of the through hole and the threaded hole, thereby improving the connection efficiency of the guide rod and the support.

[0015] Optionally, a slide groove is provided on two opposite side walls of the support beam, and the slide groove passes through the upper surface of the support beam upward. The elastic member is arranged in the slide groove, and the two ends of the elastic member are respectively abutted against the positioning plate and the bottom of the slide groove.

[0016] By adopting the above technical solution, the positioning plate is slidingly connected to the support beam by sliding the positioning plate in the slide groove.

[0017] Optionally, a long waist hole is provided on the support beam, the long waist hole is arranged along the vertical direction, the long waist hole is connected with the two sliding grooves, the locking shaft is passed through the long waist hole, and the locking shaft can slide in the long waist hole along the vertical direction.

[0018] By adopting the above technical solution, the locking shaft slides in the long waist hole along the vertical direction, and the locking shaft is slidably connected to the support beam along the vertical direction.

[0019] Optionally, a rotation groove is provided on the upper side of the positioning plate, a driving boss is rotatably connected in the rotation groove, and an outer peripheral surface of the driving boss is tangent to the guide surface;

[0020] The guide rod support also includes a driving assembly for driving the driving boss to rotate.

[0021] By adopting the above technical solution, the driving assembly drives the driving boss to rotate, and the driving boss can drive the guide rod to slide axially on the upper surface of the support beam to facilitate the alignment of the through hole of the guide rod and the threaded hole of the support beam.

[0022] Optionally, the driving component includes:

[0023] A driving shaft, a rotation hole is formed on the locking shaft, the driving shaft is passed through the rotation hole and is rotationally connected to the locking shaft, the driving shaft and the locking shaft are concentrically arranged, and the driving shaft is drivingly connected to the driving boss; and

[0024] A clutch shaft, wherein a clutch hole is provided at the connection between the driving shaft and the locking shaft, the clutch shaft is passed through the clutch hole and can rotate in the clutch hole, the clutch hole comprises a minor arc groove provided on the inner side wall of the rotating hole and a major arc groove provided on the outer side wall of the driving shaft, the radius of the minor arc groove is equal to the radius of the major arc groove, the clutch shaft has a synchronous cylindrical surface and a separation surface, and the synchronous cylindrical surface and the separation surface form a closed loop;

[0025] When the separation surface faces the inferior arc groove, the driving shaft and the locking shaft rotate synchronously; when the separation surface deviates from the inferior arc groove, the driving shaft and the locking shaft are rotationally connected.

[0026] By adopting the above technical solution, the driving shaft can drive the driving boss to rotate alone, or drive the driving boss and the locking shaft to rotate simultaneously.

[0027] Optionally, the driving assembly further includes a gripping block, wherein the gripping block is sleeved on the end of the driving shaft extending out of the locking shaft, and the driving shaft rotates synchronously with the gripping block.

[0028] By adopting the above technical solution, the gripping area of ​​the drive shaft is increased, so that it is convenient for the operator to grasp and rotate the drive shaft.

[0029] Optionally, the holding block is rotatably connected to the driving shaft, and the holding block can be slidably connected to the driving shaft along the axial direction. A driving block is fixed to the end of the clutch shaft away from the locking shaft. When the holding block is in contact with the driving block, the holding block can drive the driving block to rotate along the circumferential direction of the clutch shaft, and the holding block can slide along the axial direction to separate from the driving block.

[0030] The driving shaft is provided with two positioning grooves, which are respectively arranged on both sides of the major arc groove and are interconnected with the major arc groove. The clutch shaft has two separation surfaces and two synchronization cylinders, the two separation surfaces are arranged at intervals along the circumference of the clutch shaft, and the two synchronization cylinders are arranged at intervals along the circumference of the clutch shaft. The two separation surfaces correspond to the two positioning grooves. When the driving block is embedded in one of the positioning grooves, one of the separation surfaces faces the minor arc groove.

[0031] By adopting the above technical solution, when the holding block and the driving block are in contact, rotating the holding block can drive the driving block to be embedded in the positioning groove, and continuing to rotate the holding block can drive the driving shaft and the locking shaft to rotate synchronously; when the holding block and the driving block are separated, the driving shaft and the locking shaft are rotationally connected, and rotating the holding block can drive the driving shaft to rotate, while the locking shaft does not rotate.

[0032] Optionally, two driving protrusions are fixed on one side of the holding block facing the driving block, and when the holding block moves toward the driving block, the driving block can be inserted between the two driving protrusions.

[0033] By adopting the above technical solution, when the holding block and the driving block are in contact, rotating the holding block can drive the driving block to rotate circumferentially around the clutch shaft through the driving protrusion, thereby driving the clutch shaft to rotate in the clutch hole; when the holding block and the driving block are separated, rotating the holding block will only drive the driving shaft to rotate.

[0034] Optionally, a driving groove is provided on a side of the holding block facing the driving block, and when the holding block moves toward the driving block, the driving block can be inserted into the driving groove.

[0035] By adopting the above technical solution, when the driving block is inserted into the driving slot, the rotating holding block can drive the driving block to rotate circumferentially around the clutch shaft through the driving slot, thereby driving the clutch shaft to rotate in the clutch hole; when the driving block is not inserted into the driving slot, the rotating holding block will only drive the driving shaft to rotate.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] 1. Rotate the locking shaft to move the two positioning plates away from each other, release the support beam, and slide the positioning plates out of the slide groove driven by the elastic member. Place the guide rod between the two positioning plates, with the milled surface of the guide rod facing vertically downward, slide the positioning plate downward until the milled surface of the guide rod fits the upper surface of the support wheel, rotate the locking shaft to move the two positioning plates closer to each other to clamp the support beam, so that the through hole of the guide rod and the threaded hole of the support wheel are coplanar, so as to facilitate the alignment of the through hole and the threaded hole, thereby improving the connection efficiency between the guide rod and the support;

[0038] 2. The driving shaft can drive the driving boss to rotate alone, or drive the driving boss and the locking shaft to rotate simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of a guide rod support according to Example 1 of the present application.

[0040] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0041] Figure 3It is an exploded schematic diagram of the positioning plate, locking shaft and positioning plate of Example 1 of the present application.

[0042] Figure 4 It is an exploded schematic diagram of the drive shaft and clutch shaft, drive protrusion, grip block, and baffle plate of Example 1 of the present application.

[0043] Figure 5 It is an exploded schematic diagram of the drive shaft, gripping block and baffle plate of Example 2 of the present application.

[0044] Explanation of reference numerals: 10, support beam; 11, slide groove; 112, fixed column; 12, long waist hole; 121, sliding groove; 13, threaded hole; 20, positioning assembly; 21, positioning plate; 211, guide surface; 212, rotation groove; 22, elastic member; 23, locking shaft; 231, external thread; 232, rotation hole; 233, retaining spring; 30, driving boss; 31, friction protrusion; 40, driving Components; 41, driving shaft; 411, positioning groove; 412, baffle; 42, clutch shaft; 421, synchronization cylinder; 422, separation surface; 423, driving block; 424, connecting shaft; 43, clutch hole; 431, inferior arc groove; 432, superior arc groove; 44, holding block; 441, driving protrusion; 442, driving groove; 443, synchronization block; 45, elastic arc sheet; 50, guide rod; 51, through hole. DETAILED DESCRIPTION

[0045] The following is combined with Figure 1-5 This application is described in further detail.

[0046] The embodiment of the present application discloses a guide rod support.

[0047] Example 1

[0048] Reference Figure 1 and Figure 2 The guide rod support includes a support beam 10 and a positioning assembly 20. There are two support beams 10, which are used to carry and connect the guide rod 50. The upper surface of the support beam 10 is provided with a plurality of threaded holes 13 spaced along the length direction of the support beam 10. The guide rod 50 is provided with through holes 51 corresponding to the threaded holes 13 one by one. The guide rod 50 is fixed to the support beam 10 by bolts.

[0049] The positioning assembly 20 is used to position the guide rod 50 so that the axis of the through hole 51 is coplanar with the axis of the threaded hole 13. One support beam 10 corresponds to an even number of positioning assemblies 20, and the even number of positioning assemblies 20 are arranged at intervals along the length direction of the support beam 10. In this embodiment, one support beam 10 corresponds to two positioning assemblies 20 as an example.

[0050] Reference Figure 2 and Figure 3, the positioning assembly 20 includes a positioning plate 21, an elastic member 22 and a locking shaft 23. Specifically, one positioning assembly 20 includes two positioning plates 21, the minimum distance between the two positioning plates 21 is less than the diameter of the guide rod 50, and a slide groove 11 is provided on the two opposite side walls of the support beam 10. The slide groove 11 is vertically arranged, and the upper end of the slide groove 11 passes through the upper surface of the support beam 10. The positioning plate 21 is slidably connected in the slide groove 11 along the vertical direction. The elastic member 22 is a compression spring, and the elastic member 22 is arranged at the bottom of the slide groove 11. The lower end of the elastic member 22 abuts against the bottom wall of the slide groove 11, and the upper end of the elastic member 22 abuts against the lower side of the positioning plate 21, so that the positioning plate 21 maintains a tendency to slide upward. The support beam 10 is provided with a long waist hole 12, which is located between the two slide grooves 11 and is interconnected with the two slide grooves 11. The length direction of the long waist hole 12 is vertically arranged. The locking shaft 23 is passed through the long waist hole 12. The locking shaft 23 can rotate in the long waist hole 12 or slide in the long waist hole 12 along the vertical direction. Both ends of the locking shaft 23 have external threads 231, and the rotation directions of the two external threads 231 are oppositely arranged. The two ends of the locking shaft 23 are respectively passed through the two positioning plates 21, and the two ends of the locking shaft 23 are respectively threadedly connected with the two positioning plates 21. The upper side of the positioning plate 21 is provided with a guide surface 211, and the guide surface 211 is a plane. The distance between the guide surfaces 211 of the two positioning plates 21 gradually decreases from top to bottom, and the angles between the two guide surfaces 211 and the vertical direction are equal.

[0051] When installing the guide rod 50, the rotating locking shaft 23 drives the two positioning plates 21 away from each other, and the elastic member 22 drives the positioning plate 21 to extend out of the slide groove 11, and the guide rod 50 is placed between the two positioning plates 21, with the milled surface of the guide rod 50 facing downward, and the positioning plate 21 is adjusted to move downward until the milled surface of the guide rod 50 is in contact with the upper surface of the support beam 10, and the rotating locking shaft 23 drives the two positioning plates 21 to move closer to each other to clamp the support beam 10, and the guide rod 50 is slid along the axial direction of the guide rod 50 so that the through hole 51 of the guide rod 50 is aligned with the threaded hole 13.

[0052] A fixing column 112 is fixed on the bottom wall of the slide groove 11 , and the fixing column 112 is plugged into the lower end of the elastic member 22 , so that the elastic member 22 is not easy to slide out of the slide groove 11 when compressed.

[0053] Two retaining springs 233 are embedded on the locking shaft 23, and sliding grooves 121 are provided on the inner side walls of the opening of the long waist hole 12. The two retaining springs 233 are embedded in the sliding grooves 121 and can slide in the sliding grooves 121 along the vertical direction, so that the locking shaft 23 is not easy to slide relative to the support beam 10 along the axial direction.

[0054] A rotation groove 212 is provided on the upper side of the positioning plate 21, and the upper end opening of the rotation groove 212 passes through the guide surface 211. A driving boss 30 is provided in the rotation groove 212, and the driving boss 30 is rotatably connected to the positioning plate 21, and the conical surface of the driving boss 30 is tangent to the guide surface 211. The conical surface of the driving boss 30 is also provided with a friction protrusion 31, which is arranged in a semi-cylindrical shape and is evenly arranged along the circumference of the driving boss 30.

[0055] Reference Figure 3 and Figure 4 The guide rod support further includes a driving assembly 40, which is used to drive the driving boss 30 to rotate so as to drive the guide rod 50 to slide on the upper surface of the support beam 10. The driving assembly 40 includes a driving shaft 41 and a clutch shaft 42. A rotating hole 232 is provided on the locking shaft 23, and the rotating hole 232 is concentrically arranged with the locking shaft 23. The driving shaft 41 is penetrated in the rotating hole 232 and one end extends out of the rotating hole 232. The diameter of the driving shaft 41 is equal to the diameter of the rotating hole 232. The driving shaft 41 is rotatably connected to the locking shaft 23, and the driving shaft 41 is connected to the rotating shaft of the driving boss 30 through a synchronous belt transmission. A clutch hole 43 is provided at the connection between the driving shaft 41 and the locking shaft 23. The clutch hole 43 includes a minor arc groove 431 and a major arc groove 432. The minor arc groove 431 is provided on the inner side wall of the rotating hole 232, and the major arc groove 432 is provided on the outer side wall of the driving shaft 41. The radius of the minor arc groove 431 is equal to the radius of the major arc groove 432. The radius of the clutch shaft 42 is equal to the radius of the major arc groove 432. The clutch shaft 42 is passed through the clutch hole 43 and can rotate in the clutch hole 43. The clutch shaft 42 has a synchronous cylinder 421 and a separation surface 422. The separation surface 422 is a plane. The number of the synchronous cylinder 421 and the separation surface 422 can be one or two. When the number of the synchronous cylinder 421 and the separation surface 422 are both one, the synchronous cylinder 421 and the clutch surface form a closed loop. When the number of the synchronous cylinder 421 and the separation surface 422 are both two, the two separation surfaces 422 are arranged at intervals along the circumference of the clutch shaft 42, and the two synchronous cylinders 421 are arranged at intervals along the circumference of the clutch shaft 42. The two separation surfaces 422 and the two synchronous cylinders 421 form a closed loop. In this embodiment, the number of the synchronous cylinders 421 and the separation surfaces 422 are both two for introduction.

[0056] When the separation surface 422 is facing the minor arc groove 431, the clutch shaft 42 is completely embedded in the major arc groove 432, and the driving shaft 41 is rotationally connected with the locking shaft 23; when the clutch surface deviates from the minor arc groove 431, the clutch shaft 42 is partially embedded in the major arc groove 432 and partially embedded in the minor arc groove 431, and the locking shaft 23 rotates synchronously with the driving shaft 41.

[0057] In order to increase the gripping area of ​​the drive shaft 41 and facilitate the rotation of the drive shaft 41, a gripping block 44 is sleeved on the end of the drive shaft 41 extending out of the rotating hole 232, and the drive shaft 41 rotates synchronously with the gripping block 44. Specifically, a synchronization block 443 is fixed on the side wall of the inner hole of the gripping block 44, and the synchronization block 443 is arranged in the primary arc groove 432 and can slide in the primary arc groove 432 along the axial direction of the drive shaft 41, so that rotating the gripping block 44 can drive the drive shaft 41 and the gripping block 44 to rotate.

[0058] A connecting shaft 424 is fixed to the end of the clutch shaft 42 facing the gripping block 44. The connecting shaft 424 is concentrically arranged with the clutch shaft 42. The connecting shaft 424 is completely received in the superior arc groove 432, so that the connecting shaft 424 is not easy to interfere with the synchronous pulley. A driving block 423 is fixed to the end of the connecting shaft 424 away from the clutch shaft 42. The driving block 423 is located between the two clutch surfaces. The gripping block 44 can slide along the axial direction of the driving shaft 41 to fit or separate from the driving block 423. A baffle 412 is fixed to the end of the driving shaft 41 extending out of the rotating hole 232. The baffle 412 limits the gripping block 44, so that the gripping block 44 is not easy to slide off the driving shaft 41. Two driving protrusions 441 are fixed to one side of the holding block 44 close to the locking shaft 23. When the holding block 44 is in contact with the driving block 423, the driving block 423 is inserted between the two driving protrusions 441. When the holding block 44 is rotated, the driving protrusions 441 can drive the clutch shaft 42 to rotate in the clutch hole 43.

[0059] Two positioning grooves 411 are provided on the outer wall of the driving shaft 41. The two positioning grooves 411 are connected to the major arc groove 432, and the two positioning grooves 411 are symmetrically arranged on both sides of the major arc groove 432. When the gripping block 44 is rotated, the driving rod can be driven to be embedded in the positioning groove 411. When the driving block 423 is embedded in one of the positioning grooves 411, one of the separation surfaces 422 faces the minor arc groove 431; when the driving block 423 is embedded in the other positioning groove 411, the other separation surface 422 faces the minor arc groove 431.

[0060] An elastic arc piece 45 is also provided on the driving block 423. The elastic arc piece 45 is made of elastic steel. One end of the elastic arc piece 45 is fixed to the outer peripheral wall of the driving shaft 41, and the other end of the elastic arc piece 45 is fixedly connected to the driving block 423, so that when there is no external interference, the driving rod is located between the two positioning grooves 411. At this time, the clutch surface deviates from the inferior arc groove 431, and the clutch shaft 42 is partially embedded in the superior arc groove 432 and partially embedded in the inferior arc groove 431. The driving shaft 41 rotates synchronously with the locking shaft 23.

[0061] The implementation principle of Example 1 is: initially, the holding block 44 abuts against the baffle 412 and is separated from the driving rod. Rotating the holding block 44 drives the driving shaft 41 and the locking shaft 23 to rotate, and the locking shaft 23 drives the two positioning plates 21 to move away from each other to release the support beam 10, and the elastic member 22 drives the positioning plate 21 to extend out of the slide slot 11. Place the guide rod 50 between the two positioning plates 21 with the milled surface of the guide rod 50 facing downward, adjust the positioning plate 21 to move downward until the milled surface of the guide rod 50 is in contact with the upper surface of the support beam 10, rotate the holding block 44 to drive the driving shaft 41 and the locking shaft 23 to rotate, and the locking shaft 23 drives the two positioning plates 21 to approach each other to clamp the support beam 10, slide the holding block 44 so that the driving rod is inserted between the two driving protrusions 441, and then rotate the holding block 44, the holding block 44 drives the driving block 423 to be embedded in the positioning groove 411, the driving shaft 41 is rotationally connected to the locking shaft 23, and the holding block 44 is continued to be rotated to drive the guide rod 50 to slide axially until the through hole 51 is aligned with the threaded hole 13, release the holding block 44, and the elastic arc piece 45 drives the driving block 423 to slide out of the positioning groove 411 and rotate to between the two positioning grooves 411.

[0062] Example 2

[0063] Reference Figure 5 The difference between this embodiment and embodiment 1 is that a driving groove 442 is opened on the side of the holding block 44 facing the driving block 423. When the sliding holding block 44 approaches the driving block 423, the driving block 423 can be inserted into the driving groove 442. By rotating the holding block 44, the holding block 44 can drive the driving block 423 and the clutch shaft 42 to rotate in the clutch hole 43 along the circumference of the clutch shaft 42 through the driving groove 442.

[0064] 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 guide rod support, characterized in that: include: Support beam (10); as well as Positioning components (20), the number of which is more than two and which are arranged at intervals along the length direction of the upper surface of the support beam (10); The positioning component (20) comprises: There are two positioning plates (21) and they are slidably connected to the support beam (10) in the vertical direction. The two positioning plates (21) are respectively arranged on both sides of the support beam (10). The two positioning plates (21) are both provided with guide surfaces (211), and the distance between the two guide surfaces (211) gradually approaches from top to bottom. an elastic member (22) disposed on the support beam (10) so that the positioning plate (21) maintains a tendency to extend upwardly out of the support beam (10); and A locking shaft (23) is passed through the support beam (10) and is slidably connected to the support beam (10) in a vertical direction. Two ends of the locking shaft (23) are respectively passed through the two positioning plates (21). Both ends of the locking shaft (23) are provided with external threads (231). The rotation directions of the two external threads (231) are arranged in opposite directions. The two external threads (231) are respectively threadedly connected to the two positioning plates (21). A rotation groove (212) is provided on the upper side of the positioning plate (21), a driving boss (30) is rotatably connected in the rotation groove (212), and an outer peripheral surface of the driving boss (30) is tangent to the guide surface (211); The guide rod support further comprises a driving assembly (40) for driving the driving boss (30) to rotate; The driving assembly (40) comprises: A driving shaft (41), a rotating hole (232) is formed on the locking shaft (23), the driving shaft (41) is inserted into the rotating hole (232) and is rotationally connected to the locking shaft (23), the driving shaft (41) and the locking shaft (23) are arranged concentrically, and the driving shaft (41) is drivingly connected to the driving boss (30); and A clutch shaft (42), wherein a clutch hole (43) is provided at a connection between the driving shaft (41) and the locking shaft (23), the clutch shaft (42) is inserted into the clutch hole (43) and can rotate in the clutch hole (43), the clutch hole (43) comprises a minor arc groove (431) provided on an inner wall of the rotating hole (232) and a major arc groove (432) provided on an outer wall of the driving shaft (41), the radius of the minor arc groove (431) being equal to the radius of the major arc groove (432), the clutch shaft (42) having a synchronous cylindrical surface (421) and a separation surface (422), the synchronous cylindrical surface (421) and the separation surface (422) forming a closed loop; When the separation surface (422) faces the inferior arc groove (431), the drive shaft (41) and the locking shaft (23) rotate synchronously; when the separation surface (422) deviates from the inferior arc groove (431), the drive shaft (41) and the locking shaft (23) are rotationally connected.

2. The guide rod support according to claim 1, characterized in that: A slide groove (11) is provided on two opposite side walls of the support beam (10), the slide groove (11) penetrating upwardly through the upper surface of the support beam (10), the elastic member (22) is arranged in the slide groove (11), and the two ends of the elastic member (22) are respectively in contact with the positioning plate (21) and the bottom of the slide groove (11).

3. The guide rod support according to claim 2, characterized in that: The support beam (10) is provided with a long waist hole (12), the long waist hole (12) is arranged along the vertical direction, the long waist hole (12) and the two slide grooves (11) are connected to each other, the locking shaft (23) is passed through the long waist hole (12), and the locking shaft (23) can slide in the long waist hole (12) along the vertical direction.

4. The guide rod support according to claim 1, characterized in that: The driving assembly (40) further comprises a gripping block (44), wherein the gripping block (44) is sleeved on the end of the driving shaft (41) extending out of the locking shaft (23), and the driving shaft (41) rotates synchronously with the gripping block (44).

5. The guide rod support according to claim 4, characterized in that: The holding block (44) is rotationally connected to the driving shaft (41), and the holding block (44) can be slidably connected to the driving shaft (41) along the axial direction. A driving block (423) is fixed to the end of the clutch shaft (42) away from the locking shaft (23). When the holding block (44) and the driving block (423) are in contact, the holding block (44) can drive the driving block (423) to rotate along the circumference of the clutch shaft (42), and the holding block (44) can slide along the axial direction to separate from the driving block (423); The driving shaft (41) is provided with two positioning grooves (411), the two positioning grooves (411) are respectively provided on both sides of the major arc groove (432) and are communicated with the major arc groove (432), the clutch shaft (42) has two separation surfaces (422) and two synchronization cylinders (421), the two separation surfaces (422) are arranged at intervals along the circumference of the clutch shaft (42), the two synchronization cylinders (421) are arranged at intervals along the circumference of the clutch shaft (42), the two separation surfaces (422) correspond to the two positioning grooves (411), and when the driving block (423) is embedded in one of the positioning grooves (411), one of the separation surfaces (422) faces the minor arc groove (431).

6. The guide rod support according to claim 5, characterized in that: Two driving protrusions (441) are fixed on one side of the holding block (44) facing the driving block (423); when the holding block (44) moves in a direction close to the driving block (423), the driving block (423) can be inserted between the two driving protrusions (441).

7. The guide rod support according to claim 5, characterized in that: A driving groove (442) is provided on one side of the holding block (44) facing the driving block (423); when the holding block (44) moves in a direction approaching the driving block (423), the driving block (423) can be inserted into the driving groove (442).

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