A multifunctional clamping tool

Abstract

The application discloses a multifunctional clamping tool, which comprises a horizontal main beam, a main screw shaft vertically feeding on the main beam, a presser foot or a pin pulling head selectively connected to the lower end of the main screw shaft, a support part extending downward connected to the first end of the main beam, a first guide column and a second guide column horizontally reciprocating on the support part, an adjusting mechanism for adjusting the relative distance between the first guide column and the second guide column, a cantilever cylinder fixedly connected to the distal end of the first or second guide column, a height adjusting rod vertically adjustable on the cantilever cylinder, a support piece with a horizontal bearing surface connected to the side end of the height adjusting rod, and the main screw shaft located between the two support pieces.

Description

Technical Field

[0001] This invention relates to a multifunctional clamping tool that integrates clamping and pin pulling, belonging to the technical field of mechanical devices and mechanical components. Background Technology

[0002] In the manufacturing and assembly processes, clamping operations are often required using tools, typically employing universal clamps or bolts for tightening. However, ordinary universal clamps have a planar clamping structure, requiring the clamping point and the force application point to be on the same straight line. When there is no clamping plane on the other side of the clamped part, ordinary universal clamps cannot perform clamping operations. Furthermore, depending on the size and specifications of the clamped part, different sizes of universal clamps may need to be replaced during actual use, making the operation cumbersome. Bolt tightening methods are only suitable for clamped parts with pre-existing holes; when there are no existing holes on the surface of the part, bolt clamping methods cannot be used.

[0003] In addition, traditional pin pullers are equipped with a weight at the end. When pulling the pin, the inertial force generated by the impact of the weight is used to pull the pin. It is relatively bulky and difficult for a single person to hold. It usually requires two people to work together. Moreover, it is very easy to cause injury during use, which is unsafe. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a multi-functional clamping tool that can still achieve clamping when there is no clamping plane on the back side of the clamping member, and improve the cumbersome and unsafe operation of the traditional pin puller.

[0005] The technical problem it aims to solve can be addressed through the following technical solutions.

[0006] A multi-functional clamping tool, characterized by comprising:

[0007] A transverse main beam (01-1) is provided with a main spiral shaft (01-2) that can feed vertically up and down. The lower end of the main spiral shaft (01-2) can be selectively fitted with a pressure foot or a pin puller. The first end of the main beam (01-1) is connected to a downwardly extending support part. The support part is provided with a first guide column (02-91) and a second guide column (02-92) that can reciprocate horizontally, and an adjustment mechanism for adjusting the lateral relative distance between the first guide column (02-91) and the second guide column (02-92).

[0008] With one end of the first guide post (02-91) connected to the support as the proximal end, the distal end of the first guide post is fixedly connected to the first cantilever cylinder (02-21). A first height adjustment rod (02-11) with a vertically adjustable position is connected to the first cantilever cylinder (02-21). One end of the first height adjustment rod (02-11) is connected to a first support member with a first horizontal bearing surface.

[0009] With one end of the second guide post (02-92) connected to the support as the proximal end, the distal end of the second guide post is fixedly connected to the second cantilever cylinder (02-22). A second height adjustment rod (02-12) with a vertically adjustable position is connected to the second cantilever cylinder (02-22). One end of the second height adjustment rod (02-12) is connected to a second support member with a second horizontal bearing surface.

[0010] The main helical shaft is located between the first support and the second support.

[0011] As a further improvement to this technical solution, the main helical shaft (01-2) is positioned on a horizontal sliding base, and the horizontal sliding base is placed in a groove opened on the main beam (01-1).

[0012] As a further improvement to this technical solution, the tail of the main helical shaft (01-2) is provided with a force-applying handle for tightening or loosening the screw.

[0013] In a preferred embodiment of the present invention, the first guide post (02-91) is located above the second guide post (02-92). The lower cylindrical surface of the first guide post is provided with a first rack, and the upper cylindrical surface of the second guide post is provided with a second rack. The adjusting mechanism is a pitch adjusting nut (02-10), which has an adjusting tooth. The adjusting tooth is located between the first rack and the second rack and meshes synchronously with the first rack and the second rack. When the pitch adjusting nut is rotated, the first guide post and the second guide post move relative to each other in a state of synchronous approaching or synchronous moving away.

[0014] In a preferred embodiment of the present invention, the first height adjusting rod (02-11) is a threaded rod that passes vertically through the first cantilever cylinder (02-21), and the first cantilever cylinder (02-21) is also provided with a limiting pin that can be inserted through the side of the cylinder and abut against the threads of the threaded rod; the second height adjusting rod (02-12) is a threaded rod that passes vertically through the second cantilever cylinder (02-22), and the second cantilever cylinder (02-22) is also provided with a limiting pin that can be inserted through the side of the cylinder and abut against the threads of the threaded rod.

[0015] In another preferred embodiment of the present invention, the first support member is a sliding member that can slide horizontally along the third guide post, the third guide post being connected to the first height adjusting rod (02-11), and an elastic limiting bead and its slot for positioning the relative position between the first support member and the third guide post are provided; the second support member is a sliding member that can slide horizontally along the fourth guide post, the fourth guide post being connected to the second height adjusting rod (02-12), and an elastic limiting bead and its slot for positioning the relative position between the second support member and the fourth guide post are also provided.

[0016] More preferably, the first guide post is a quadrangular prism, the second guide post is also a quadrangular prism, and the third guide post is a semi-cylinder.

[0017] As a further improvement to this technical solution, a support column (03-1) is hinged to the second end of the main beam (01-1).

[0018] Furthermore, the support column (03-1) is a telescopic rod structure or a folding structure, and the main beam (01-1) has a groove on its beam body for placing the support column in its retracted or folded state.

[0019] Furthermore, the support column (03-1) also has one or more locking elements to keep it housed in the groove or perpendicular to the beam.

[0020] The working principle of this invention is as follows:

[0021] During the production process, when clamping is required, the spacing adjustment nut is rotated according to the size of the clamped part and the actual space. The nut drives the guide columns on both sides to move left and right, thereby achieving the purpose of adjusting the left and right spacing.

[0022] After adjusting the left and right spacing to a suitable width, remove the adjusting rod limit block to allow the height adjusting rod to be in an active state. Rotate the height adjusting nut to drive the height adjusting rod to move up and down along the inner wall of the cantilever cylinder. After moving to a suitable position, return the adjusting rod limit block to its original position. At this time, the limit block will lock the threads on the adjusting rod, achieving the purpose of locking.

[0023] Adjust the slider and telescopic component to the appropriate position. The telescopic component is limited by the retaining ball on the semi-circular guide post. Tighten the hand lever on the main screw shaft until the universal head is pressed tightly against the clamped surface. At this point, the part to be clamped is clamped by the universal head and the telescopic component.

[0024] When a pin removal operation is required, replace the clamping universal head with a pin removal head; screw the chuck down to 90° to lower the pin removal unit, return the chuck to its original position, and thus achieve 90° fixation of the support column; screw the telescopic column tightening screw to loosen the telescopic column to the required position and then tighten it to lock the telescopic column; when removing the pin, screw the threaded head into the pin to be removed, support the telescopic component and telescopic column on the surface of the part outside the pin, the telescopic component and telescopic column provide support force, reverse the hand-tightening rod, and the threaded pin is pulled out through the main screw shaft.

[0025] The beneficial effects of this invention are as follows:

[0026] 1. Comprehensive functionality;

[0027] It has both clamping and pin-pulling functions;

[0028] 2. Wide applicability and minimal limitations;

[0029] It can be adapted to the size and surface flatness of the clamped part, making it widely applicable and reducing the tedious operation of changing tools for different clamped parts. When there is no clamping plane on the back of the clamped part or there is a lack of space required for clamping, ordinary universal clamps cannot be used. This tool can adjust the clamping position on the back according to the actual situation to achieve the clamping function of the part, with little limitation in use.

[0030] 3. Easy and safe to operate, with a low risk factor;

[0031] Traditional pin pullers have a weight at the back, and the pin is pulled out by impacting it with the inertial force, which is relatively dangerous and unsafe. This tool does not require dangerous operations such as impacting with a weight, reducing the risk of injury to personnel and lowering the risk factor.

[0032] 4. The tools are lightweight and convenient;

[0033] Traditional pin pullers are heavy and difficult to hold, generally requiring two people to operate. This tool is lighter and easier to use, requiring only one person to operate, making it more convenient. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the multifunctional clamping tool of the present invention;

[0035] Figure 2 This is a schematic diagram of the force-applying unit structure of the present invention;

[0036] Figure 3 This is a schematic diagram of the load-bearing unit structure of the present invention;

[0037] Figure 4 This is a schematic diagram of the pin-pulling unit structure of the present invention;

[0038] Figure 5This is a schematic diagram of the main beam structure of the present invention;

[0039] Figure 6 for Figure 5 Another structural diagram;

[0040] Figure 7 This is a schematic diagram of the main helical shaft structure of the present invention;

[0041] Figure 8 This is a schematic diagram of the adjusting rod limiting block structure of the present invention;

[0042] Figure 9 This is a schematic diagram of the support column structure of the present invention;

[0043] Figure 10 This is a schematic diagram showing the cooperation between the telescopic column and the telescopic column tightening screw of the present invention;

[0044] Figure 11 This is a schematic diagram of the clamping operation of the present invention; structural schematic diagrams from the upper and lower views are shown respectively;

[0045] Figure 12 This is a schematic diagram illustrating the pin-pulling operation of the present invention;

[0046] The diagram is labeled as follows: 01, Force-applying unit; 02, Load-bearing unit; 03, Pin-pulling unit.

[0047] 01-1 Main beam; 01-2 Main helical shaft; 01-3 Hand-tightening rod; 01-4 Adjusting slider; 01-5 Tightening universal head; 01-6 Pin puller; 01-7 Bolt sample; 01-8 Threaded pin to be pulled out; 01-9 Annular groove; 01-10 Inverted T-shaped groove; 01-11 Upper groove; 01-12 Lower groove; 01-13 Square channel; 01-14 Stepped hole; 01-15 Fork lug;

[0048] 02-1, Height Adjusting Rod; 02-11, First Height Adjusting Rod; 02-12, Second Height Adjusting Rod; 02-2, Cantilever Cylinder; 02-21, First Cantilever Cylinder; 02-22, Second Cantilever Cylinder; 02-3, Limiting Block Movable Pin; 02-4, Adjusting Rod Limiting Block; 02-5, Clamping Ball Unit; 02-6, Telescopic Part; 02-7, Semi-circular Guide Post; 02-8, Height Adjusting Nut; 02-9, Square Guide Post; 02-91, First Guide Post; 02-92, Second Guide Post; 02-10, Spacing Adjusting Nut;

[0049] 02-5-1, Top screw; 02-5-2, Thrust spring; 02-5-3, Limit ball;

[0050] 03-1, Support column; 03-2, Telescopic column; 03-3, Telescopic column locking screw; 03-4, Clamping pin; 03-5, Tightening block; 03-6, Inner cavity; 03-7, Inclined groove surface;

[0051] 04-1, Simulated Example Product A; 04-2, Simulated Example Product B. Detailed Implementation

[0052] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0053] This invention relates to a multi-functional clamping tool that integrates clamping and pin pulling, and is made entirely of metal. Figures 1-12 The multifunctional clamping tool provided by the present invention mainly consists of three parts: a force application unit 01, a force bearing unit 02, and a pin pulling unit 03.

[0054] Force-applying unit 01 is the central unit of this tool and is the active force-applying part when this tool is working; force-bearing unit 02 is the passive force-bearing part when this tool is working; the structures on the left and right sides of the force-bearing unit are similar or corresponding and are interspersed on the force-applying unit to achieve connection; pin-pulling unit 03 is used when pulling the pin and is connected to the end of the force-applying unit. When not in use, it can be retracted into the force-applying unit. The three units are connected into a unified whole.

[0055] The force-applying unit 01 mainly consists of a main beam 01-1, a main screw shaft 01-2, a hand-tightening rod 01-3, an adjusting slider 01-4, a tightening universal head 01-5, and a pin-pulling head 01-6. The main load-bearing part is the main beam 01-1. The transverse side of the main beam where the slider is mounted has double slots (upper slot 01-11 and lower slot 01-12). The upper slot serves as the movable guide rail for the adjusting slider 01-4, and the side wall of the slider is a U-shaped groove that engages with the upper slot of the main beam. The lower slot serves as the storage space for the pin-pulling unit 03, which is used when the pin-pulling unit is not in use. The end is connected to the support column by a fork lug (01-15) to achieve a hinge connection (please refer to the structure of the fork lug). Figure 6 As shown, install the pin-pulling unit; when the pin-pulling unit is not in use, screw it in 90° to save space.

[0056] The main helical shaft 01-2 is mounted on the main beam 01-1 via the adjusting slider 01-4. The vertical and horizontal spans of the main helical shaft 01-2 can be adjusted by rotating the hand lever 01-3 and sliding the adjusting slider 01-4.

[0057] The end of the main screw shaft 01-2 has an annular groove 01-9 for mounting the clamping universal head 01-5. The annular groove 01-9 engages with the internal retaining beads of the clamping universal head 01-5 to prevent it from falling off and to facilitate replacement. The clamping universal head contacts the surface of the clamped part for clamping. When the pin-pulling function is required, the clamping universal head can be replaced with a pin-pulling head to achieve the pin-pulling function.

[0058] The main beam 01-1, connected to the load-bearing unit, has an inverted T-shaped structure (01-10 in the figure) as a support. It features a stepped hole (stepped hole 01-14 on the longitudinal outer side in the figure) and two square channels 01-13, serving as mounting holes for the spacing adjustment nut 02-10 and guide channels for the cantilever cylinder 02-2 in the load-bearing unit. The main helical shaft 01-2 has a fully threaded structure with an annular groove 01-9 at the end, connecting to the tightening universal joint 01-5. A hole is opened at the top for installing a manual tightening rod (i.e., the hand-tightening rod 01-3 in the figure). The tightening universal joint has a ball-locking structure on its mounting side for easy replacement.

[0059] The load-bearing unit 02 consists of two approximate structures, left and right. For a single-sided load-bearing unit, it mainly consists of a height adjustment rod 02-1, a cantilever cylinder 02-2, a limiting block movable pin 02-3, an adjustment rod limiting block 02-4, a ball retaining unit 02-5, a telescopic component 02-6, a semi-circular guide post 02-7, a height adjustment nut 02-8, a square guide post 02-9, and a spacing adjustment nut 02-10.

[0060] The cantilever cylinder 02-2 is installed on the main beam via square guide posts 02-9. The square guide post 02-9 has a full-circuit groove; one side connects to the cantilever cylinder 02-2 at a 90° angle, and the other side passes through the square channel 01-13 on the main beam, engaging with the spacing adjustment nut 02-10. Rotating the spacing adjustment nut 02-10 moves the square guide post 02-9 left and right, adjusting the left and right spacing. The square dimensions of the square guide post 02-9 match the square channel on the main beam, and the groove depth and width match the spacing adjustment nut 02-10. To distinguish between the two square guide posts 02-9, they can be labeled as the first guide post 02-91 and the second guide post 02-92, respectively.

[0061] The spacing adjustment nut 02-10 of the load-bearing unit 02 has a four-stage stepped structure. Stages 2 and 4 are cylindrical, embedded in the stepped holes of the main beam as the rotation axis for the nut. The outer side of the stage 4 cylinder has a cotter pin hole for installing a cotter pin to prevent it from falling off. Stage 1 has a fine vertical groove structure to increase friction during manual rotation. Stage 3 is the actual working part, also with a vertical grooved serrated structure. The serration size matches the tooth groove on the square guide post 02-9 in the load-bearing unit. During operation, rotating the spacing adjustment nut 02-10 drives the square guide post to move left and right, thereby adjusting the spacing in the left and right directions.

[0062] That is, when the pitch adjusting nut 02-10 is rotated, the two square guide posts 02-9 on both sides drive the cantilever cylinders 02-2 on both sides to move closer or further away simultaneously, thereby adjusting the pitch between them. In reality, the pitch adjusting nut 02-10 only acts on the grooves on the lower end face of the upper square guide post 02-9 and the grooves on the upper end face of the lower square guide post 02-9. Therefore, the two square guide posts do not actually need to have full annular grooves; only the corresponding surfaces need to have grooves that act on the pitch adjusting nut.

[0063] The height adjustment rod 02-1 is installed inside the cantilever cylinder 02-2. The height adjustment rod 02-1 is driven by rotating the height adjustment nut 02-8 to adjust the vertical distance. The cantilever cylinder 02-2 is a hollow cylindrical structure. The height adjustment rod 02-1 matches the size of the circular hole in the cantilever cylinder. The adjustment rod has an annular groove that matches the serrations of the height adjustment nut. The tip of the adjustment rod limiting block 02-4 matches the annular groove of the height adjustment rod. A slotted hole is cut into the side of the cantilever cylinder, and the height adjustment nut 02-8 is installed therein. The height adjustment nut 02-8 is fixed to the cantilever cylinder by bolts. The front end of the bolts engages with the threads of the height adjustment rod 02-1. During operation, rotating the height adjustment nut 02-8, through the rotation of its bolts, further drives the height adjustment rod 02-1 to move up and down, achieving vertical distance adjustment. The adjustment of the height adjustment rod 02-1 here is slightly smaller than the adjustment of the main screw shaft 01-2, and can be considered as a fine-tuning of the vertical position of the cantilever cylinder 02-2. To distinguish between the height adjustment rods 02-1 and the cantilever cylinder 02-2 on both sides, the two height adjustment rods are marked as the first height adjustment rod 02-11 and the second height adjustment rod 02-12, respectively, and the two cantilever cylinders are marked as the first cantilever cylinder 02-21 and the second cantilever cylinder 02-22, respectively.

[0064] To prevent the height adjustment rod 02-1 from coming loose during operation, a limiting pin 02-3 is used to install an adjustment rod limiting block 02-4 on the side of the cantilever cylinder 02-2. After the height adjustment rod 02-1 is adjusted to the desired position, the limiting block 02-4 is pushed in to lock the height adjustment rod. Figure 8 As shown, the tip of the adjusting rod limiting block 02-4 is engaged in the threaded groove of the height adjusting rod 02-1 to lock the height adjusting rod.

[0065] The height adjustment rod 02-1 is connected at its end to the semi-circular guide post 02-7 (90° connection). A semi-circular track is opened on the inner wall of the telescopic component 02-6 (the so-called telescopic component actually achieves extension and retraction through sliding). The telescopic component 02-6 is fitted onto the outside of the semi-circular guide post 02-7. In use, the telescopic component 02-6 can slide laterally along the semi-circular guide post 02-7 to adjust the distance in the front-to-back direction. Simultaneously, a retaining bead is installed inside the semi-circular guide post 02-7, and a retaining bead groove is opened in the track of the telescopic component for limiting and fixing in the front-to-back direction. That is, the telescopic component is adjusted and limited through the retaining bead unit. Figure 3 The enlarged view shows that the locking ball unit 02-5 serves as a limiting unit, consisting of a capping screw 02-5-1, a thrust spring 02-5-2, and a limiting ball 02-5-3. Through the elastic compression of the limiting ball 02-5-3 by the thrust spring 02-5-2, a portion of the limiting ball 02-5-3 can protrude into the locking ball groove, achieving a locked position. The locking ball groove is designed for a jump adjustment, meaning that several locking ball grooves matching the limiting ball are set in a jump manner within a certain range to accommodate the lateral position setting of the telescopic component 02-6.

[0066] The pin-pulling unit is located on the other side of the main beam in the force-applying unit, opposite to the load-bearing unit. Pin-pulling unit 03 mainly consists of a support column 03-1, a telescopic column 03-2, a telescopic column locking screw 03-3, a locking pin 03-4, and a tightening block 03-5. The support column 03-1 is installed at the end of the main beam 01-1 via a rotating shaft and is connected to the telescopic column 03-2 via the telescopic column locking screw 03-3 and the tightening block 03-5. The telescopic column 03-2 is embedded inside the support column 03-1 and is limited by the telescopic column locking screw 03-3.

[0067] When using the pin-pulling function, the telescopic column 03-2 is lowered from the cavity of the support column by adjusting the locking screw 03-3, simultaneously adjusting the vertical spacing. Specifically, to facilitate the fixing of the telescopic column 03-2, it is designed as a rectangular column structure with a single-sided beveled groove 03-7, embedded in the inner cavity 03-6 of the support column. After the telescopic column is adjusted to the desired height, the telescopic column tightening screw (i.e., the telescopic column locking screw 03-3) is locked in place by the top tightening block 03-5. The beveled groove on the side of the telescopic column is designed to prevent slippage during operation after the tightening screw is tightened. When the pin-pulling unit is not in operation, the telescopic column locking screw 03-3 is loosened, and the telescopic column 03-2 retracts into the inner cavity 03-6 of the hollow structure of the support column. The total length of the telescopic column must be shorter than the internal length of the support column to ensure that the telescopic column can be fully embedded inside the support column. Furthermore, the pin is screwed into the groove below the main beam 01-1 (i.e., lower groove 01-13), and the locking pin 03-4 is rotated to fix the pin-pulling unit, saving space. The top of the support column has an extended flange with corresponding slots for the locking pin to limit and lock it in place. When the pin-pulling unit is working, rotating the locking pin releases the pin-pulling unit to a vertical position, and rotating the locking pin locks the support column 03-1 to prevent the pin-pulling unit from rotating during operation and causing danger.

[0068] When clamping is performed (at this time, the pin-pulling unit 03 is not released and is in a standby state embedded in the main beam crossbeam groove), first rotate the spacing adjusting nut 02-10. The serrated edge on the adjusting nut drives the square guide post 02-9 to move left and right until the desired position is reached. Pull out the adjusting rod limit block 02-4 to make the height adjusting rod 02-1 movable. Tighten the height adjusting nut 02-8 and adjust it to the appropriate position. Then push in the adjusting rod limit block 02-4 to lock the height adjusting rod 02-1. Pull out the telescopic part 02-6 and slide the adjusting slider to the appropriate position. Place the part to be clamped (see attached diagram). Figure 11 For the simulated product examples A and B marked 04-1 and 04-2, tighten the main screw shaft 01-2 until the part is clamped. This completes the clamping function. See attached diagram for tightening instructions. Figure 11 .

[0069] When performing the pin removal operation, after rotating the fixed chuck 03-4 to release the pin removal unit to 90°, rotate the fixed chuck into the support column slot to fix the pin removal unit at 90°. Remove the clamping universal head 01-5 on the main screw shaft 01-2 and replace it with the pin removal head 01-6, and replace the bolt with one that matches the threaded pin to be removed. Figure 2(See bolt sample 01-7). Adjust the spacing adjusting nut 02-10 and height adjusting nut 02-8 (operation is similar to clamping), and the telescopic component 02-6 to the appropriate position and then lock them. After adjusting the telescopic column 03-2 to the support surface, tighten the telescopic column locking screw 03-3 to lock the telescopic column 03-2. Screw bolt sample 01-7 into the threaded pin 01-8 to be pulled out, and attach the pin-pulling head 01-6 to the groove at the bottom of bolt sample 01-7 and main screw shaft 01-2. Rotate the main screw shaft in the opposite direction, and the threaded pin will be pulled out. This completes the pin-pulling function. See the attached diagram for a pin-pulling illustration. Figure 12 .

[0070] All of the parts are made of steel or harder and lighter materials. Some parts are considered to be rotating parts and require surface treatment to increase wear resistance.

[0071] This invention is an improved clamping tool designed to overcome the problem of clamping failure when the back of the clamped part lacks a clamping plane. This tool also functions as a pin puller, improving upon the cumbersome and unsafe operation of traditional pin pullers. It comprises three main parts: a force-applying unit, a force-bearing unit, and a pin-pulling auxiliary unit. The force-applying unit is the central unit, actively applying force during operation. The force-bearing unit passively bears force and provides clamping support, and is symmetrically structured, interlocking with the force-applying unit for connection. The pin-pulling auxiliary unit provides support during pin pulling and is connected to the force-applying unit via a rotating pin. All three units are connected as a unified whole.

[0072] The tool provided by this invention, which combines clamping and pin-pulling functions, can be adapted to the size and surface flatness of the clamped part, making it widely applicable and reducing the cumbersome operation of changing tools for different clamped parts. When the back of the clamped part lacks a clamping surface or the required clamping space, the tool can adjust the clamping position on the back side according to the actual situation to achieve the clamping function, minimizing limitations in use. Simultaneously, this tool also functions as a pin puller; compared to traditional pin pullers, it eliminates the need for dangerous operations such as heavy object impacts, reducing personnel injury and lowering the risk factor. This tool is lightweight and simple to use, requiring only one person to operate, making it more convenient.

[0073] The above description is a further detailed explanation of the technical solution provided in conjunction with the preferred embodiments of the present invention. It should not be considered that the specific implementation of the present invention is limited to the above description. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the protection scope of the present invention.

Claims

1. A multi-functional clamping tool, characterized in that, include: A transverse main beam (01-1) is provided with a main spiral shaft (01-2) that can feed vertically up and down. The lower end of the main spiral shaft (01-2) can be selectively fitted with a pressure foot or a pin puller. The first end of the main beam (01-1) is connected to a downwardly extending support part. The support part is provided with a first guide column (02-91) and a second guide column (02-92) that can reciprocate horizontally, and an adjustment mechanism for adjusting the lateral relative distance between the first guide column (02-91) and the second guide column (02-92). With one end of the first guide post (02-91) connected to the support as the proximal end, the distal end of the first guide post is fixedly connected to the first cantilever cylinder (02-21). A first height adjustment rod (02-11) with a vertically adjustable position is connected to the first cantilever cylinder (02-21). One end of the first height adjustment rod (02-11) is connected to a first support member with a first horizontal bearing surface. With one end of the second guide post (02-92) connected to the support as the proximal end, the distal end of the second guide post is fixedly connected to the second cantilever cylinder (02-22). A second height adjustment rod (02-12) with a vertically adjustable position is connected to the second cantilever cylinder (02-22). One end of the second height adjustment rod (02-12) is connected to a second support member with a second horizontal bearing surface. The main helical shaft is located between the first support and the second support.

2. The multifunctional clamping tool according to claim 1, characterized in that, The main helical shaft (01-2) is positioned on a horizontal sliding base, which is placed in a groove opened on the main beam (01-1).

3. The multifunctional clamping tool according to claim 1, characterized in that, The tail of the main helical shaft (01-2) is provided with a force-applying handle for tightening or loosening the screw.

4. The multifunctional clamping tool according to claim 1, characterized in that, The first guide post (02-91) is located above the second guide post (02-92). The lower cylindrical surface of the first guide post is provided with a first rack, and the upper cylindrical surface of the second guide post is provided with a second rack. The adjustment mechanism is a pitch adjustment nut (02-10). The pitch adjustment nut has an adjustment tooth. The adjustment tooth is located between the first rack and the second rack and meshes synchronously with the first rack and the second rack. When the pitch adjustment nut is rotated, the first guide post and the second guide post move relative to each other in a state of synchronous approach or synchronous distance.

5. The multifunctional clamping tool according to claim 1, characterized in that, The first height adjusting rod (02-11) is a threaded rod that passes vertically through the first cantilever cylinder (02-21). The first cantilever cylinder (02-21) is also provided with a limiting pin that can be inserted through the side of the cylinder and abut against the threads of the threaded rod. The second height adjusting rod (02-12) is a threaded rod that passes vertically through the second cantilever cylinder (02-22). The second cantilever cylinder (02-22) is also provided with a limiting pin that can be inserted through the side of the cylinder and abut against the threads of the threaded rod.

6. The multifunctional clamping tool according to claim 1, characterized in that, The first support member is a sliding member that can slide horizontally along the third guide post. The third guide post is connected to the first height adjustment rod (02-11). An elastic limiting bead and its slot are provided between the first support member and the third guide post for positioning the relative position between the two. The second support member is a sliding member that can slide horizontally along the fourth guide post. The fourth guide post is connected to the second height adjustment rod (02-12). An elastic limiting bead and its slot are also provided between the second support member and the fourth guide post for positioning the relative position between the two.

7. The multifunctional clamping tool according to claim 6, characterized in that, The first guide post is a quadrangular prism, the second guide post is also a quadrangular prism; the third guide post is a semi-cylinder, and the fourth guide post is also a semi-cylinder.

8. The multifunctional clamping tool according to claim 1, characterized in that, A support column (03-1) is hinged to the second end of the main beam (01-1).

9. The multifunctional clamping tool according to claim 8, characterized in that, The support column (03-1) is a telescopic rod structure or a folding structure, and the main beam (01-1) has a groove for placing the support column in the retracted or folded state.

10. The multifunctional clamping tool according to claim 9, characterized in that, The support column (03-1) also has one or more locking elements to keep it housed in the groove or perpendicular to the beam.

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