Clamping tool

Abstract

The clamping tool comprises a supporting assembly, a lifting assembly and a clamp, the supporting assembly comprises a bottom plate and an L-shaped plate, one end of the L-shaped plate is fixedly connected with the bottom plate, the lifting assembly is located under the other end of the L-shaped plate and installed on the bottom plate, and threaded holes are formed in the top end of the lifting assembly and the other end of the L-shaped plate. The two threaded holes are coaxially formed, the clamps are arranged in pairs, through holes are formed in the axis directions of the clamps, the opposite ends of the two clamps are in threaded connection with the two threaded holes correspondingly, a clamping structure of the wooden beads is formed through the arrangement of the lifting assembly, and then through the connection mode of the clamps and the threaded holes, workers can conveniently clamp the wooden beads according to the wooden beads of different specifications; according to the drilling machine, the matched clamp is installed, meanwhile, through the arrangement of the through hole, the stability of the punching punch in the drilling machine is improved, the collision situation generated at the moment when the punching punch punches a wooden bead is avoided, and the service life of the punching punch in the drilling machine is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drilling technical field, concretely relates to a clamping tool. BACKGROUND

[0002] Wood bead bracelet gives a natural, simple and honest feeling, common wood has sandalwood, coconut shell wood, mahogany etc., different wood bead bracelet has different implication and function, the wood bead of wood bead string or wood bead cushion and recliner and other products needs to be processed after the wood bead appearance and then carries out the punching, for example, the invention patent with the name of a sandalwood bead finishing punching device with the authorization announcement number CN106863484B, including the connecting column, the top of connecting column is equipped with the shaft coupling, the top of shaft coupling connects the motor, the bottom of shaft coupling connects the rotating shaft, the bottom of rotating shaft connects the punching punch, the bottom of punching punch connects the punching punch head, the both sides of connecting column bottom are connected with the telescopic rod, the bottom of telescopic rod is equipped with the bottom plate, the top of bottom plate is equipped with the fixed equipment, the fixed equipment is composed of the support, the fixed ring and the fixed seat, the right side of support is equipped with the moving rod, the right side of moving rod is connected with the fixed ring, the inner chamber of fixed seat is equipped with the fan, the device effectively guarantees the stable punching of sandalwood bead, so that the sandalwood bead does not appear deviation when punching, thereby improving the punching quality of sandalwood bead.

[0003] But, because the fixed seat is fixed, when the diameter length of wood bead is less than or equal to the inner diameter length of the fixed seat, the wood bead will contact the inner bottom surface of the fixed seat, at this time, the punching punch will hit the inner bottom surface of the fixed seat in an instant when the wood bead is punched, and the service life of the punching punch will be reduced over time. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the above technical insufficient, proposes a clamping tool, solves the collision generated in an instant when the punching punch of prior art punches the wood bead, and the service life of the punching punch is reduced over time.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a clamping tool, including support assembly, lifting assembly and clamp, the support assembly includes bottom plate and L type board, one end of L type board is fixedly connected with bottom plate, lifting assembly is located the just below of the other end of L type board and installs on bottom plate, and the top of lifting assembly and the other end of L type board all are equipped with threaded hole, two threaded holes are coaxial arrangement, the axial direction of clamp is equipped with through hole, the opposite ends of two clamps are used for clamping wood bead respectively with two threaded holes screw thread connection.

[0007] In some embodiments, the lifting assembly includes a sleeve, a lifting block, and a spring. The sleeve is fixedly connected to the top surface of the base plate. The threaded hole is opened at the top of the lifting block. The bottom end of the lifting block is slidably fitted inside the sleeve. The spring is located at the bottom end of the lifting block and is used to abut against the lifting block to always clamp the wooden bead upward.

[0008] In some embodiments, the L-shaped plate is fitted with a horizontal plate, which is located between the two threaded holes. The horizontal plate has a limiting hole, and the top end of the lifting block is slidably sleeved in the limiting hole.

[0009] In some embodiments, a cylindrical rod is provided inside the sleeve, and the bottom end of the spring is sleeved on the outer wall of the cylindrical rod.

[0010] In some embodiments, the bottom end of the lifting block has a cylindrical hole, and the top end of the spring is fitted into the cylindrical hole.

[0011] In some embodiments, the diameter of the cylindrical hole is larger than the diameter of the threaded hole.

[0012] In some embodiments, the sleeve has an opening in its sidewall.

[0013] In some embodiments, the lifting assembly further includes a lever and a handle. One end of the lever is rotatably connected to the side wall of the L-shaped plate, and the other end of the lever is fixedly connected to the handle. The lever is connected to the lifting block and is used to drive the lifting block to move up and down.

[0014] In some embodiments, the side wall of the lifting block is fixedly connected with a lug, the lever has a sliding hole, and the lug is slidably sleeved in the sliding hole.

[0015] In some embodiments, the base plate has mounting holes.

[0016] Compared with the prior art, the clamping fixture provided by this utility model forms a clamping structure for the wooden beads through the setting of the lifting component. The connection between the clamp and the threaded hole allows the operator to install the appropriate clamp according to the different specifications of the wooden beads. At the same time, the through hole improves the stability of the punch in the drilling machine and avoids the collision that occurs when the punch penetrates the wooden bead, effectively improving the service life of the punch in the drilling machine. Attached Figure Description

[0017] Figure 1 This is a three-dimensional view of a clamping fixture provided in an embodiment of this utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the middle support component (without levers and handles);

[0019] Figure 3 yes Figure 1 Schematic diagram showing the connection relationship between the lifting block and the spring;

[0020] Figure 4 yes Figure 3 Top view;

[0021] Figure 5 yes Figure 4 Sectional view of AA;

[0022] Figure 6 yes Figure 1 A schematic diagram showing the connection between the lever and the handle;

[0023] Figure 7 This is a three-dimensional drawing of a clamping fixture provided in an embodiment of the present utility model;

[0024] Figure 8 yes Figure 7 Top view;

[0025] Figure 9 yes Figure 8 A cross-sectional view of BB.

[0026] Explanation of reference numerals in the attached drawings: 1. Support assembly; 11. Base plate; 111. Mounting hole; 12. L-shaped plate; 13. Threaded hole; 14. Horizontal plate; 141. Limiting hole; 2. Lifting assembly; 21. Sleeve; 211. Opening; 22. Lifting block; 221. Cylindrical hole; 222. Lug; 23. Spring; 24. Cylindrical rod; 25. Lever; 251. Sliding hole; 26. Handle; 3. Clamp; 31. Through hole; 32. Threaded strip; 33. Clamping surface. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0028] To address the technical problem of reduced lifespan of a punch due to the impact generated when it pierces a wooden bead, this invention provides a clamping fixture that can improve the lifespan of the punch.

[0029] It should be noted that the clamping fixture described in this utility model is used in, but not limited to, drilling machines, etc. For ease of explanation, this utility model only uses the application of a clamping fixture to a drilling machine as an example for explanation. The principle of the clamping fixture applied to other types of equipment is essentially the same as that applied to a drilling machine, and will not be described in detail here.

[0030] Please see Figure 1 - Figure 9 ,in Figure 1 This is a schematic diagram of a clamping fixture in one embodiment of the present invention. The clamping fixture includes a support component 1, a lifting component 2, and a clamp 3. The support component 1 includes a base plate 11 and an L-shaped plate 12. One end of the L-shaped plate 12 is fixedly connected to the base plate 11. The lifting component 2 is located directly below the other end of the L-shaped plate 12 and is installed on the base plate 11. The top end of the lifting component 2 and the other end of the L-shaped plate 12 are both provided with threaded holes 13. The two threaded holes 13 are coaxially arranged. The clamps 3 are arranged in pairs. The clamps 3 are provided with through holes 31 in the axial direction. The opposite ends of the two clamps 3 are respectively threadedly connected to the two threaded holes 13. The opposite ends of the two clamps 3 are used to clamp wooden beads.

[0031] In this embodiment, the lifting component 2 forms a clamping structure for the wooden beads. The connection between the clamp 3 and the threaded hole 13 allows the operator to install the appropriate clamp 3 according to the different specifications of the wooden beads. At the same time, the through hole 31 improves the stability of the punch in the drilling machine and avoids the collision that occurs when the punch penetrates the wooden bead, thus effectively improving the service life of the punch in the drilling machine.

[0032] It should be noted that there are multiple pairs of clamps 3, and the clamping surfaces 33 of each pair of clamps 3 are different. Workers can install the appropriate clamps 3 according to the specifications of the wooden beads (e.g., oval).

[0033] In one embodiment, the lifting assembly 2 includes a sleeve 21, a lifting block 22 and a spring 23. The sleeve 21 is fixedly connected to the top surface of the base plate 11. A threaded hole 13 is opened at the top of the lifting block 22. The bottom end of the lifting block 22 is slidably sleeved in the sleeve 21. The spring 23 is located at the bottom end of the lifting block 22 and is used to abut against the lifting block 22 to always clamp the wooden bead upward.

[0034] In this embodiment, the sleeve 21 restricts the lifting block 22 to move only in one direction, thereby making the two threaded holes 13 always move coaxially, and under the action of the spring 23, the two clamps 3 can clamp the wooden beads independently.

[0035] It should be noted that the selected spring 23 is sufficient to withstand the cutting forces (torque and axial force) generated during the drilling process, and a rectangular compression spring is preferred.

[0036] In one embodiment, the L-shaped plate 12 is fitted with a horizontal plate 14, which is located between two threaded holes 13. The horizontal plate 14 has a limiting hole 141, and the top end of the lifting block 22 is slidably sleeved in the limiting hole 141.

[0037] In this embodiment, the function of the limiting hole 141 is to ensure the directional lifting of the lifting block 22, avoid deviation of the lifting block 22 during the rising or falling process, ensure that the two threaded holes 13 are always coaxial, and thus ensure that the through holes 31 of the two clamps 3 are always coaxial, so that the drilling punch of the drilling machine can penetrate the through holes 31 of the two clamps 3 during the drilling process.

[0038] In one embodiment, a cylindrical rod 24 is provided inside the sleeve 21, and the bottom end of the spring 23 is sleeved on the outer wall of the cylindrical rod 24.

[0039] In this embodiment, the inner side of the spring 23 is in contact with the outer wall of the cylindrical rod 24, providing stability to the spring 23 during compression or expansion.

[0040] In one embodiment, the bottom end of the lifting block 22 is provided with a cylindrical hole 221, and the top end of the spring 23 is sleeved in the cylindrical hole 221.

[0041] In one embodiment, the diameter of the cylindrical hole 221 is larger than the diameter of the threaded hole 13.

[0042] In this embodiment, to prevent the tip of the spring 23 from entering the threaded hole 13, the inner diameter of the spring 23 is larger than the inner diameter of the threaded hole 13. The area difference between the cylindrical hole 221 and the threaded hole 13 is utilized to allow the tip of the spring 23 to abut against the area difference. In order to make the spring 23 run more smoothly, the outer diameter of the spring 23 is the same as the inner diameter of the cylindrical hole 221, so that the outer side of the spring 23 contacts the inner wall of the cylindrical hole 221. Under the combined action of the cylindrical hole 221 and the cylindrical rod 24, the spring 23 is supported during compression or expansion, thus preventing the spring 23 from bending.

[0043] In one embodiment, the sleeve 21 has an opening 211 on its side wall.

[0044] In this embodiment, after prolonged use, debris or dust will inevitably accumulate inside the sleeve 21. The opening 211 serves to facilitate cleaning of the inside of the sleeve 21 by the staff.

[0045] In one embodiment, the lifting assembly 2 further includes a lever 25 and a handle 26. One end of the lever 25 is rotatably connected to the side wall of the L-shaped plate 12, and the other end of the lever 25 is fixedly connected to the handle 26. The lever 25 is connected to the lifting block 22 and is used to drive the lifting block 22 to rise and fall.

[0046] In this embodiment, in order to facilitate manual operation of the handle 26, the surface of the handle 26 is provided with anti-slip texture. When the handle 26 is pressed, the lever 25 rotates downward, thereby driving the lifting block 22 to descend. When the handle is released, under the action of the spring 23, the lifting block 22 rises, thereby driving the lever 25 to rotate upward, so that the handle 26 returns to its original position.

[0047] In one embodiment, the side wall of the lifting block 22 is fixedly connected with a lug 222, and the lever 25 has a sliding hole 251, with the lug 222 slidably sleeved in the sliding hole 251.

[0048] In this embodiment, the connection between the lug 222 and the sliding hole 251 enables the lever 25 to drive the lifting block 22 to achieve the lifting function. At the same time, in order to prevent the lug 222 from disengaging from the sliding hole 251, the end of the lug 222 away from the lifting block 22 is provided with a baffle larger than the inner diameter of the sliding hole 251.

[0049] In one embodiment, the base plate 11 has mounting holes 111.

[0050] In this embodiment, the function of the mounting holes 111 is to fix the device on the drilling machine, and to fix it to the worktable of the drilling machine by bolts passing through each mounting hole 111.

[0051] To better understand this utility model, the following is combined with... Figures 1 to 9 The technical solution of this utility model is described in detail below:

[0052] First, select a pair of matching clamps 3 according to the size, shape, and other specifications of the wooden beads. Install the clamps 3 by connecting the threaded strip 32 to the threaded hole 13. Then, manually press the handle 26 and rotate the lever 25, which in turn drives the lifting block 22 to descend. At this time, the spring 23 is compressed. Next, place the wooden bead between the two clamps 3 and release the handle. Under the action of the spring 23, the lifting block 22 automatically rises and drives the lever 25 and the handle 26 back to the initial position. At this time, the wooden bead is fixed by the abutment of a pair of clamping surfaces 33. Finally, the drilling punch of the drilling machine passes through the through holes 31 of the two clamps 3 from top to bottom to complete the drilling. The whole process is very convenient, which improves the stability of the drilling punch in the drilling machine and effectively avoids the collision that occurs when the drilling punch penetrates the wooden bead, thus improving the service life of the drilling punch in the drilling machine.

[0053] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A clamping fixture, characterized in that, include: A support assembly, comprising a base plate and an L-shaped plate, wherein one end of the L-shaped plate is fixedly connected to the base plate; A lifting assembly is located directly below the other end of the L-shaped plate and mounted on the base plate. Both the top end of the lifting assembly and the other end of the L-shaped plate have threaded holes, which are coaxially arranged. The clamps are arranged in pairs, and each clamp has a through hole along its axial direction. The opposite ends of the two clamps are threadedly connected to the two threaded holes, and the opposite ends of the two clamps are used to hold wooden beads.

2. The clamping fixture according to claim 1, characterized in that, The lifting assembly includes a sleeve, a lifting block, and a spring. The sleeve is fixedly connected to the top surface of the base plate. The threaded hole is opened at the top of the lifting block. The bottom end of the lifting block is slidably fitted inside the sleeve. The spring is located at the bottom end of the lifting block and is used to abut against the lifting block to always clamp the wooden bead upward.

3. The clamping fixture according to claim 2, characterized in that, The L-shaped plate is fitted with a horizontal plate, which is located between the two threaded holes. The horizontal plate has a limiting hole, and the top end of the lifting block is slidably sleeved in the limiting hole.

4. The clamping fixture according to claim 2, characterized in that, The sleeve contains a cylindrical rod, and the bottom end of the spring is fitted onto the outer wall of the cylindrical rod.

5. A clamping fixture according to claim 2, characterized in that, The bottom end of the lifting block has a cylindrical hole, and the top end of the spring is fitted into the cylindrical hole.

6. A clamping fixture according to claim 5, characterized in that, The diameter of the cylindrical hole is larger than the diameter of the threaded hole.

7. A clamping fixture according to claim 2, characterized in that, The sleeve has an opening on its side wall.

8. A clamping fixture according to claim 2, characterized in that, The lifting assembly also includes a lever and a handle. One end of the lever is rotatably connected to the side wall of the L-shaped plate, and the other end of the lever is fixedly connected to the handle. The lever is connected to the lifting block and is used to drive the lifting block to move up and down.

9. A clamping fixture according to claim 8, characterized in that, The side wall of the lifting block is fixedly connected with a lug, and the lever has a sliding hole, with the lug slidably fitted into the sliding hole.

10. A clamping fixture according to claim 1, characterized in that, The base plate has mounting holes.

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