A guide shaft assembly that is easy to install and adjust

Abstract

The present invention relates to the field of mechanical transmission technology, specifically to a guide shaft assembly that is easy to install and adjust, including a base plate, four gap adjustment assemblies, two first guide shafts and four sliding mechanisms, and also includes a stroke adjustment mechanism fixedly installed on the top of the base plate, the stroke adjustment mechanism is composed of two mounting plates, a second guide shaft, two threaded rods, two movable sleeves and two distance meters, and the outer side of the second guide shaft is sleeved with a positioning mechanism. The present invention adjusts the gap through the gap adjustment assembly, and drives the eccentric sleeve connected by tooth groove engagement to rotate through the rotating adjustment gear. When the eccentric sleeve rotates, due to the existence of the eccentricity, the first guide shaft will be slightly offset, thereby changing the gap between the first guide shaft and the sliding mechanism. By adjusting the gap, the gap change caused by factors such as wear and thermal deformation can be eliminated, ensuring that the guiding accuracy is always in the best state.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical transmission, in particular to a guide shaft assembly which is easy to install and adjust. Background Art

[0002] The guide shaft assembly is an indispensable component in mechanical equipment. It bears the important responsibility of guiding and supporting the moving parts to move accurately along the predetermined trajectory. In automated production lines, precision instruments and various industrial machinery, the performance of the guide shaft assembly directly affects the operating efficiency and processing accuracy of the entire equipment. In industrial machinery, the guide shaft assembly is often used to ensure the precise positioning and trajectory control of the moving parts. For example, in high-precision mechanical equipment such as CNC machine tools and machining centers, the guide shaft assembly plays a vital role in guiding and supporting the moving parts to move in a specific direction, thereby avoiding the occurrence of deviations and errors, and providing a strong guarantee for the precise and stable operation of mechanical equipment.

[0003] However, the existing guide shaft assemblies still have some problems and shortcomings in practical applications, which limit their further development, which are specifically reflected in the following aspects: the existing guide shaft assemblies will produce friction during long-term use, and the long-term friction will cause gaps, and the gaps will cause the position of the guide shaft assemblies to shift, which can easily lead to unstable operation of the equipment; at the same time, there is also a lack of adjustment of the guide stroke, and it is difficult to ensure the precise positioning of the guide shaft assembly at the specified position, which will lead to deviations during equipment operation. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: the existing guide shaft assembly has gap offset and inaccurate positioning problems caused by long-term friction during long-term use; at the same time, there is a lack of adjustment of the guide stroke, and it is difficult to ensure the precise positioning of the guide shaft assembly at the specified position, which leads to deviation problems during equipment operation.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A guide shaft assembly that is easy to install and adjust, comprising a base plate, four gap adjustment assemblies, two first guide shafts and four sliding mechanisms, and also comprising a stroke adjustment mechanism fixedly mounted on the top of the base plate, the stroke adjustment mechanism consisting of two mounting plates, a second guide shaft, two threaded rods, two moving sleeves and two distance meters;

[0007] The outer side of the second guide shaft is sleeved with a positioning mechanism, which is composed of a mounting seat, a sliding sleeve, a movable plate and a resistance locking plate, wherein the sliding sleeve is fixedly mounted inside the mounting seat, the resistance locking plate is movably mounted on the bottom inside the mounting seat, a linkage block is fixedly mounted inside the resistance locking plate, a movable plate is movably mounted inside the resistance locking plate through the linkage block and the V-shaped groove, and the movement stroke of the positioning mechanism is adjusted by the stroke adjustment mechanism, and when the positioning mechanism moves to one side of the movable sleeve seat, the movable plate that resists the movement squeezes the linkage block through the V-shaped groove to drive the resistance locking plate to move up to resist and lock the second guide shaft;

[0008] Both ends of the two first guide shafts are respectively connected to four gap adjustment components through stepped shaft ends and clamping strips, and the four gap adjustment components are fixedly installed on the top of the base plate;

[0009] The clearance adjustment assembly consists of a bearing seat, an eccentric sleeve and an adjusting gear. The eccentric sleeve is rotatably installed inside the bearing seat. The outer wall of the eccentric sleeve is surrounded by equidistant tooth grooves. The adjusting gear is rotatably installed below the eccentric sleeve, and the adjusting gear is meshed with the tooth grooves on the outer wall of the eccentric sleeve.

[0010] Preferably, a scale is embedded in one side of the bearing seat and surrounds the outside of the eccentric sleeve. A plug-in slot is provided inside the eccentric sleeve. A pointer is fixedly installed on one side of the eccentric sleeve, and a knob is installed on one side of the adjustment gear through a shaft.

[0011] Preferably, mounting plates are fixedly installed at both ends of the second guide shaft, and the two mounting plates are fixedly installed on both sides of the top of the base plate, two threaded rods are threadedly installed inside the two mounting plates, two movable sleeves are respectively installed at one end of the two threaded rods through rotating shafts, and the two movable sleeves are respectively sleeved on the outside of the second guide shaft, and two rangefinders are respectively embedded and installed on one side of the two mounting plates.

[0012] Preferably, the sliding mechanism consists of a top sleeve, a bottom sleeve, an oil storage box, and a ball sleeve, and the top sleeve and the bottom sleeve are fixedly sleeved on the outside of the ball sleeve by bolts, the oil storage box is fixedly installed on both sides of the top sleeve and the bottom sleeve by bolts, a sliding block is fixedly installed on the bottom of the bottom sleeve, oil guide grooves are provided on both sides of the inside of the bottom sleeve, flexible sealing rings are embedded and installed on both sides of the oil storage box, clamping rings are fixedly installed on both ends of the ball sleeve, equidistant ball parts are installed around both sides of the inner wall of the ball sleeve, an oil inlet is provided at the bottom of the ball sleeve, and the oil inlet is butted against the oil guide groove.

[0013] Preferably, a through hole is provided inside the sliding sleeve, the mounting seat is composed of two butted slot seats and fastened by bolts, the linkage block is movably installed in the V-groove, and the movable plate cooperates with the linkage block through the V-groove to drive the resisting lock plate to move vertically.

[0014] Preferably, slide rails are fixedly installed on both sides of the top of the base plate, and the slider is movably connected to the slide rails.

[0015] Preferably, four sliding mechanisms are movably sleeved on the outer sides of the two first guide shafts respectively, and moving seats are installed on the tops of the sliding mechanisms and the positioning mechanisms through bolts.

[0016] Preferably, both ends of the two first guide shafts are fixedly mounted with stepped shaft ends, and clamping strips are fixedly mounted equidistantly on the outer sides of the stepped shaft ends.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes high control of guiding accuracy, precise locking of moving position and adjustment of guiding moving stroke through a gap adjustment component, a stroke adjustment mechanism and a positioning mechanism; the gap is adjusted through the gap adjustment component, and the rotating adjustment gear drives the eccentric sleeve connected by the tooth groove engagement to rotate. When the eccentric sleeve rotates, due to the existence of the eccentric distance, the first guide shaft will be slightly offset, thereby changing the gap between the first guide shaft and the sliding mechanism. By adjusting the gap, the gap change caused by wear, thermal deformation and other factors can be eliminated, ensuring that the guiding accuracy is always in the best state; the moving stroke of the moving seat is preset through the stroke adjustment mechanism, and the moving positioning mechanism interacts with the stroke adjustment mechanism to realize the locking function of the moving seat position, so as to realize the precise positioning of the moving seat to the specified position, and ensure the precise control and stability of the moving position of the moving seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the connection structure between the positioning mechanism and the second guide shaft of the present invention;

[0020] Figure 3 It is a schematic diagram of the connection structure between the stroke adjustment mechanism and the positioning mechanism of the present invention;

[0021] Figure 4 It is a schematic diagram of the internal structure of the positioning mechanism of the present invention;

[0022] Figure 5 It is a schematic diagram of the expanded structure of the positioning mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the connection structure between the moving plate and the abutting lock plate of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection structure of the first guide shaft, the gap adjustment assembly and the sliding mechanism of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the first guide shaft of the present invention;

[0026] Fig. 9 It is a schematic diagram of the unfolded structure of the sliding mechanism of the present invention;

[0027] Fig.10 It is a schematic diagram of the internal structure of the sliding mechanism of the present invention;

[0028] Fig.11 It is a schematic diagram of the ball sleeve structure of the present invention;

[0029] Fig.12 It is a schematic diagram of the structure of the gap adjustment assembly of the present invention;

[0030] Fig.13 It is a schematic diagram of the internal structure of the gap adjustment component of the present invention.

[0031] In the figure: 1, base plate; 101, slide rail; 2, gap adjustment assembly; 201, bearing seat; 202, eccentric sleeve; 203, plug-in slot; 204, knob; 205, adjustment gear; 206, tooth groove; 3, first guide shaft; 301, stepped shaft end; 302, clamping strip; 4, sliding mechanism; 401, top sleeve; 402, bottom sleeve; 403, slider; 404, oil storage box; 405, ball sleeve; 4051, clamping ring; 4052, ball bearing; 4053, oil inlet; 406, flexible sealing ring; 407, oil guide groove; 5, stroke adjustment mechanism; 501, mounting plate; 502, second guide shaft; 503, threaded rod; 504, movable sleeve seat; 505, distance meter; 6, movable seat; 7, positioning mechanism; 701, mounting seat; 702, sliding sleeve; 703, movable plate; 704, abutment locking plate; 705, linkage block; 706, V-groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figure 1 - Fig.13 The present invention provides a guide shaft assembly that is easy to install and adjust, including a base plate 1, four gap adjustment assemblies 2, two first guide shafts 3 and four sliding mechanisms 4, and also includes a stroke adjustment mechanism 5 fixedly installed on the top of the base plate 1, and the stroke adjustment mechanism 5 is composed of two mounting plates 501, a second guide shaft 502, two threaded rods 503, two movable sleeves 504 and two distance meters 505;

[0036] The outer side of the second guide shaft 502 is sleeved with a positioning mechanism 7, which is composed of a mounting seat 701, a sliding sleeve 702, a movable plate 703 and a contact locking plate 704, wherein the sliding sleeve 702 is fixedly mounted inside the mounting seat 701, the contact locking plate 704 is movably mounted on the bottom inside the mounting seat 701, a linkage block 705 is fixedly mounted inside the contact locking plate 704, and a movable plate 703 is movably mounted inside the contact locking plate 704 through the linkage block 705 and the V-shaped groove 706. The moving stroke of the positioning mechanism 7 is adjusted by the stroke adjustment mechanism 5. When the positioning mechanism 7 moves to one side of the movable sleeve seat 504, the movable plate 703 that contacts the movement squeezes the linkage block 705 through the V-shaped groove 706 to drive the contact locking plate 704 to move upward to contact and lock the second guide shaft 502;

[0037] Both ends of the two first guide shafts 3 are respectively connected to the four gap adjustment components 2 through the stepped shaft ends 301 and the clamping strips 302, and the four gap adjustment components 2 are fixedly installed on the top of the base plate 1;

[0038] The clearance adjustment assembly 2 is composed of a bearing seat 201, an eccentric sleeve 202 and an adjustment gear 205. The eccentric sleeve 202 is rotatably mounted inside the bearing seat 201. The outer wall of the eccentric sleeve 202 is surrounded by equidistant tooth grooves 206. The adjustment gear 205 is rotatably mounted below the eccentric sleeve 202, and the adjustment gear 205 is meshed and connected with the tooth grooves 206 on the outer wall of the eccentric sleeve 202.

[0039] The gap adjustment assembly 2, the sliding mechanism 4 and the positioning mechanism 7 are all modularized, which is convenient for installation, as well as disassembly and replacement of local structures.

[0040] The two rangefinders 505 are guided by an external controller. The distance measurement thresholds of the two rangefinders 505 are set by the external controller according to the guide stroke requirements. The threaded rod 503 is rotated and moved on the internal thread of the mounting plate 501. The moving threaded rod 503 drives the moving sleeve 504 to move. At the same time, the moving position of the moving sleeve 504 is detected in real time by the rangefinder 505. When the moving sleeve 504 moves to the set threshold, a prompt is given by the external controller to ensure that the moving seat 6 on the top of the positioning mechanism 7 moves accurately to the specified position. When the positioning mechanism 7 moves to one side of the movable sleeve seat 504, the positioning mechanism 7 continues to move so that the movable sleeve seat 504 contacts the movable plate 703 to move, and the moving movable plate 703 pushes the linkage block 705 through the V-shaped groove 706 to drive the contact lock plate 704 to move upward, and the upward contact lock plate 704 penetrates the sliding sleeve 702 to contact and lock the bottom of the second guide shaft 502, and the positioning mechanism 7 cooperates with the stroke adjustment mechanism 5 to limit the moving stroke of the movable seat 6 and lock the position, thereby ensuring the accuracy and stability of the moving position of the movable seat 6;

[0041] The rotating adjustment gear 205 drives the eccentric sleeve 202 meshingly connected by the tooth groove 206 to rotate. When the eccentric sleeve 202 rotates, the first guide shaft 3 will be slightly offset due to the eccentricity, thereby changing the gap between the first guide shaft 3 and the sliding mechanism 4 to ensure the guiding accuracy.

[0042] like Fig.12 , Fig.13 As shown, a scale is embedded in one side of the bearing seat 201, and the scale surrounds the outside of the eccentric sleeve 202. A plug-in slot 203 is provided inside the eccentric sleeve 202. A pointer is fixedly installed on one side of the eccentric sleeve 202, and a knob 204 is installed on one side of the adjustment gear 205 through a shaft.

[0043] The top of the bearing seat 201 is provided with an adjustment slot, and the adjustment slot is squeezed by tightening the fastening thread, so as to fasten the eccentric sleeve 202 inside the bearing seat 201. When the eccentric sleeve 202 needs to be rotated, the eccentric sleeve 202 is unlocked by screwing the fastening thread;

[0044] The center of the plug-in slot 203 does not coincide with the center of the eccentric sleeve 202, and there is an eccentric distance. The eccentric sleeve 202 is driven to rotate through the shaft by the hand-held knob 204. The rotating eccentric sleeve 202 drives the first guide shaft 3 to slightly deviate through the plug-in slot 203. The slightly deviated first guide shaft 3 adjusts the gap with the sliding mechanism 4. At the same time, the rotation of the eccentric sleeve 202 will drive the pointer to rotate. The rotating pointer is used to read the rotation angle of the eccentric sleeve 202 using a scale. The rotation angle of the eccentric sleeve 202 is linearly related to the gap change, so precise gap adjustment can be achieved.

[0045] like Figure 3 As shown, mounting plates 501 are fixedly mounted at both ends of the second guide shaft 502, and the two mounting plates 501 are fixedly mounted on both sides of the top of the substrate 1, and two threaded rods 503 are respectively threadedly mounted inside the two mounting plates 501, and two movable sleeves 504 are respectively mounted on one end of the two threaded rods 503 through a rotating shaft, and the two movable sleeves 504 are respectively sleeved on the outside of the second guide shaft 502, and two rangefinders 505 are respectively embedded and mounted on one side of the two mounting plates 501;

[0046] The rangefinder 505 is an infrared rangefinder, which uses modulated infrared light for precise distance measurement. The tops of the two movable sleeves 504 are fixed with reflective ends to reflect the infrared beam emitted by the rangefinder 505.

[0047] The threaded rod 503 is rotated and moved on the internal thread of the mounting plate 501, thereby driving the movable sleeve 504 to move. At the same time, there are infrared signal transmitting and receiving diodes in the rangefinder 505. After the transmitting tube transmits an infrared signal of a specific frequency, the receiving tube receives the signal reflected by the reflecting end. After digital processing by an external controller, the distance between obstacles is obtained. When the movable sleeve 504 moves to the preset position, the threaded rod 503 is stopped from rotating to ensure the accuracy of the constraint stroke of the two movable sleeves 504.

[0048] like Figure 7 - Fig.11 As shown, the sliding mechanism 4 is composed of a top sleeve 401, a bottom sleeve 402, an oil storage box 404, and a ball sleeve 405, and the top sleeve 401 and the bottom sleeve 402 are fixedly sleeved on the outside of the ball sleeve 405 by bolts, the oil storage box 404 is fixedly installed on both sides of the top sleeve 401 and the bottom sleeve 402 by bolts, a slider 403 is fixedly installed at the bottom of the bottom sleeve 402, oil guide grooves 407 are opened on both sides of the bottom sleeve 402, and flexible sealing rings 406 are embedded and installed on both sides of the oil storage box 404, and clamping rings 4051 are fixedly installed at both ends of the ball sleeve 405, and equidistant ball pieces 4052 are installed around both sides of the inner wall of the ball sleeve 405, and an oil inlet 4053 is opened at the bottom of the ball sleeve 405, and the oil inlet 4053 is connected to the oil guide groove 407.

[0049] Among them, the movement of the movable seat 6 can be guided by the sliding mechanism 4 sliding on the outside of the first guide shaft 3, the lubricating oil is stored in the oil storage box 404, and the inner side of the oil storage box 404 is provided with an oil outlet penetrating the oil guide groove 407. The oil storage box 404 transports the lubricating oil to the inside of the oil guide groove 407 through the oil outlet, and the lubricating oil enters the inner wall of the ball sleeve 405 through the oil inlet 4053 connected to the oil guide groove 407 to lubricate the ball member 4052, thereby reducing the friction of the guided movement of the ball member 4052, and the slider 403 extends to the inside of the slide rail 101. The movement of the slider 403 in the slide rail 101 can further limit the moving direction of the sliding mechanism 4.

[0050] like Figure 2 - Figure 6 As shown, a through hole is provided inside the sliding sleeve 702, and the mounting seat 701 is composed of two butted slot seats and fastened by bolts; the linkage block 705 is movably installed in the V-shaped groove 706, and the movable moving plate 703 cooperates with the linkage block 705 through the V-shaped groove 706 to drive the abutting locking plate 704 to move vertically;

[0051] Among them, the through hole facilitates the interference lock plate 704 to pass through the sliding sleeve 702 and to interfere and lock with the second guide shaft 502. The mounting base 701 composed of two docking slot seats is convenient for disassembly and assembly by screwing bolts, which facilitates the installation of the mounting base 701 and also facilitates partial replacement of the internal structure of the mounting base 701. When the moving plate 703 is subjected to interference movement, the moving plate 703 uses the V-groove 706 and the linkage block 705 to drive the interference lock plate 704 to move vertically. The vertically moving interference lock plate 704 passes through the through hole inside the sliding sleeve 702 and interferes and locks with the second guide shaft 502.

[0052] like Figure 1 , Figure 2 As shown, slide rails 101 are fixedly installed on both sides of the top of the base plate 1, and the slider 403 is movably connected to the slide rails 101;

[0053] An inner groove having the same shape as the slider 403 is provided inside the slide rail 101 , so that the slider 403 can stably move inside the slide rail 101 . The movement of the slider 403 inside the slide rail 101 can improve the stability of the moving direction of the sliding mechanism 4 .

[0054] like Figure 1 , Figure 2 As shown, four sliding mechanisms 4 are movably sleeved on the outer sides of the two first guide shafts 3, and the tops of the four sliding mechanisms 4 and the positioning mechanism 7 are all installed with moving seats 6 through bolts;

[0055] Among them, the tops of the four sliding mechanisms 4 and the positioning mechanism 7 are fixedly installed with bolts, and the moving seat 6 is fixedly installed using the bolts on the tops of the four sliding mechanisms 4 and the positioning mechanism 7. At the same time, removing the bolts also facilitates the removal of the moving seat 6, and the moving seat 6 provides an installation position for the equipment. The two first guide shafts 3 cooperate with the four sliding mechanisms 4 to increase the guiding accuracy of the moving seat 6.

[0056] like Figure 8 As shown, both ends of the two first guide shafts 3 are fixedly mounted with stepped shaft ends 301, and the outer sides of the stepped shaft ends 301 are fixedly mounted with clamping strips 302 at equal distances;

[0057] Among them, the contact area between the stepped shaft end 301 and the eccentric sleeve 202 is relatively small, and the contact surface is connected to the plug-in slot 203 through the clamping strip 302. The stepped shaft end 301 can reduce the heat and wear generated by friction, thereby extending the service life of the first guide shaft 3.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A guide shaft assembly that is easy to install and adjust, comprising a base plate (1), four gap adjustment assemblies (2), two first guide shafts (3) and four sliding mechanisms (4), characterized in that: It also includes a stroke adjustment mechanism (5) fixedly mounted on the top of the base plate (1), the stroke adjustment mechanism (5) comprising two mounting plates (501), a second guide shaft (502), two threaded rods (503), two movable sleeve seats (504) and two distance meters (505); The outer side of the second guide shaft (502) is sleeved with a positioning mechanism (7), the positioning mechanism (7) comprising a mounting seat (701), a sliding sleeve (702), a movable plate (703) and a contact locking plate (704), wherein the sliding sleeve (702) is fixedly mounted inside the mounting seat (701), the contact locking plate (704) is movably mounted at the bottom inside the mounting seat (701), a linkage block (705) is fixedly mounted inside the contact locking plate (704), and the contact locking plate (704) is movable at the bottom inside the mounting seat (701). A movable plate (703) is movably mounted inside (704) through a linkage block (705) and a V-shaped groove (706). The travel of the positioning mechanism (7) is adjusted through a travel adjustment mechanism (5). When the positioning mechanism (7) moves to one side of the movable sleeve (504), the movable plate (703) that is in contact with the movement squeezes the linkage block (705) through the V-shaped groove (706) to drive the contact locking plate (704) to move upward and contact and lock the second guide shaft (502). Both ends of the two first guide shafts (3) are respectively clamped with four gap adjustment components (2) through stepped shaft ends (301) and clamping strips (302), and the four gap adjustment components (2) are fixedly mounted on the top of the base plate (1); The clearance adjustment assembly (2) is composed of a bearing seat (201), an eccentric sleeve (202) and an adjustment gear (205); the eccentric sleeve (202) is rotatably mounted inside the bearing seat (201); an outer wall of the eccentric sleeve (202) is provided with equidistant tooth grooves (206); the adjustment gear (205) is rotatably mounted below the eccentric sleeve (202); and the adjustment gear (205) is meshedly connected with the tooth grooves (206) on the outer wall of the eccentric sleeve (202).

2. A guide shaft assembly that is easy to install and adjust according to claim 1, characterized in that: A scale is embedded and installed on one side of the bearing seat (201), and the scale surrounds the outside of the eccentric sleeve (202). A plug-in slot (203) is provided inside the eccentric sleeve (202). A pointer is fixedly installed on one side of the eccentric sleeve (202), and a knob (204) is installed on one side of the adjustment gear (205) via a shaft.

3. A guide shaft assembly that is easy to install and adjust according to claim 1, characterized in that: Mounting plates (501) are fixedly mounted on both ends of the second guide shaft (502), and the two mounting plates (501) are fixedly mounted on both sides of the top of the base plate (1); two threaded rods (503) are respectively threadedly mounted inside the two mounting plates (501); two movable sleeves (504) are respectively mounted on one end of the two threaded rods (503) via rotating shafts, and the two movable sleeves (504) are respectively sleeved on the outside of the second guide shaft (502); and two rangefinders (505) are respectively embedded and mounted on one side of the two mounting plates (501).

4. A guide shaft assembly that is easy to install and adjust according to claim 1, characterized in that: Four sliding mechanisms (4) are movably sleeved on the outer sides of the two first guide shafts (3), and moving seats (6) are installed on the tops of the sliding mechanisms (4) and the positioning mechanisms (7) via bolts.

5. A guide shaft assembly that is easy to install and adjust according to claim 1, characterized in that: A through hole is provided inside the sliding sleeve (702); the mounting seat (701) is composed of two butted slot seats and fastened by bolts; the linkage block (705) is movably mounted in the V-shaped groove (706); the movable plate (703) cooperates with the linkage block (705) through the V-shaped groove (706) to drive the abutting locking plate (704) to move vertically.

6. A guide shaft assembly that is easy to install and adjust according to claim 4, characterized in that: The sliding mechanism (4) is composed of a top sleeve (401), a bottom sleeve (402), an oil storage box (404), and a ball sleeve (405), wherein the top sleeve (401) and the bottom sleeve (402) are fixedly sleeved on the outside of the ball sleeve (405) by bolts, the oil storage box (404) is fixedly installed on both sides of the top sleeve (401) and the bottom sleeve (402) by bolts, a slider (403) is fixedly installed on the bottom of the bottom sleeve (402), and the bottom sleeve (402) is fixedly sleeved on the outside of the ball sleeve (405). ) are provided with oil guide grooves (407) on both sides of the interior, flexible sealing rings (406) are embedded and installed on both sides of the oil storage box (404), clamping rings (4051) are fixedly installed at both ends of the ball sleeve (405), and equidistant ball parts (4052) are installed around both sides of the inner wall of the ball sleeve (405), and an oil inlet (4053) is provided at the bottom of the ball sleeve (405), and the oil inlet (4053) is connected to the oil guide groove (407).

7. A guide shaft assembly that is easy to install and adjust according to claim 6, characterized in that: Slide rails (101) are fixedly mounted on both sides of the top of the base plate (1), and the slider (403) is movably connected to the slide rails (101).

8. The guide shaft assembly that is easy to install and adjust according to claim 1, characterized in that: Both ends of the two first guide shafts (3) are fixedly mounted with stepped shaft ends (301), and clamping strips (302) are fixedly mounted at equal distances on the outer sides of the stepped shaft ends (301).

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