Clamping device and woodworking clamp
By designing a water pipe clamp with elastic cards and segmented handle screws, the problem of uneven clamping force of existing water pipe clamps is solved, and stable fixation and efficient processing of wooden boards are achieved.
Patent Information
- Application Number
- CN202411875030.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-04-25
AI Technical Summary
When using existing water pipe clamps, due to the different forces applied by the left and right hands, the clamping force is uneven, which affects the fixation of the wooden board.
A water pipe clamp including a fixed arm, a guide rod, a movable arm, a handle screw and a press block is designed. The guide rod is fixed by an elastic card to ensure the stable distance between the fixed arm and the movable arm, and the operation efficiency is improved through a segmented handle screw.
The uniform clamping of the workpiece is achieved, the processing quality and operating efficiency are improved, and the problem of uneven clamping force is avoided.
Smart Images
Figure CN119871319A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of clamps, in particular to a clamping device and a woodworking clamp. Background Art
[0002] The pipe clamp is an indispensable tool in carpentry work. It is mainly used to fix the workpiece to ensure its stability and accuracy during the processing. The pipe clamp is mainly composed of a fixed arm, a movable arm, a guide rod, a handle screw and a pressure block. The movable arm is fixedly installed with a guide rod, and the handle screw is rotatably installed above the guide rod. The pressure block is installed on the handle screw, and then the pipe clamp is slidably connected with the fixed arm through the guide rod to form a completed pipe clamp.
[0003] Pipe clamps are usually used in pairs. The two pairs of fixed arms are adjusted to the gap and fixed on the workbench. Then the movable arm is slid and installed with the fixed arm through the guide rod, so as to control the distance between the fixed arm and the movable arm, so as to adjust it according to the size of the wooden board.
[0004] When the clamping device composed of water pipe clamps is used, when clamping the wooden board, the staff needs to use both hands to simultaneously turn the handle screws to push the pressure block to fix the wooden board. During the rotation of the handle screws, the left and right hands are subjected to different forces, and the forces applied to the handle screws are also different, which leads to deviations in the clamping forces of the two water pipe clamps on the wooden board, affecting the fixation of the wooden board.
[0005] To this end, the prior art proposes a clamping device and a woodworking clamp. The invention uses a cam mechanism as a transmission device to enable the clamp to have a higher load-bearing capacity; at the same time, it makes the operation of the clamp more labor-saving, convenient and comfortable, but the problem of uneven clamping force is still not solved.
[0006] In view of this, the present invention provides a clamping device and a woodworking clamp. Summary of the invention
[0007] The technical problem to be solved by the present invention is to provide a clamping device and a woodworking clamp in view of the deficiencies in the above-mentioned prior art.
[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is: a clamping device and a woodworking clamp: A woodworking clamp comprises a water pipe clamp; the water pipe clamp comprises a fixed arm, a guide rod, a movable arm, a handle screw and a pressure block; the fixed arm is provided with an elastic card, the fixed arm is slidably provided with a guide rod; one end of the guide rod is fixedly connected to the movable arm; the movable arm is slidably provided with a handle screw, and the handle screw is located above the guide rod; the pressure block is rotatably provided on the handle screw; The fixed arm serves as a reference for fixing to the workbench; The guide rod is used to limit the moving track of the movable arm, so that the movable arm and the fixed arm remain corresponding. At the same time, the guide rod plays a placing role, which is used to place the wooden board and maintain the stability of the wooden board; Fix one end of the guide rod on the movable arm, and then pass the other end of the guide rod through the fixed arm to complete the installation of the water pipe clamp. During use, pull the movable arm through the guide rod, and then adjust the distance between the movable arm and the fixed arm to meet the size of the workpiece. Then fix the guide rod with the elastic card to ensure the distance between the fixed arm and the movable arm, and then twist the handle screw to push the pressure block to slide horizontally to fix and clamp the workpiece.
[0009] Preferably, the movable arm is connected to the guide rod via a threaded connection, which improves the stability of the connection between the guide rod and the movable arm and facilitates the disassembly and installation of the guide rod for use by staff.
[0010] Preferably, the handle screw is divided into a vertical section and a horizontal section, and the vertical section is slidably connected to the horizontal section. Limiting balls are provided at both ends of the vertical section to ensure the connection between the vertical section and the horizontal section. The vertical section and the horizontal section are slidably connected to facilitate adjustment of the distance of the vertical section according to the angle of the handle screw, thereby changing the torque of the handle screw, thereby facilitating the twisting of the staff and saving effort.
[0011] A clamping device comprises a water pipe clamp, a workbench, a limit plate, a fixing assembly, a clamping plate, an adjusting assembly and a push rod; a fixing plate is provided on the workbench, a limit plate is slidably installed on the workbench, and a water pipe clamp is symmetrically installed on the workbench; a fixing arm of the water pipe clamp is installed on the fixing plate, and the fixing arm plays an initial positioning role and is used for the installation of subsequent parts of the water pipe clamp, the movable arm is fixedly installed with the limit plate, a handle screw is rotatably installed on the movable arm, the horizontal section of the handle screw is divided into a driving section and an engaging section, a pressure block is rotatably installed on the handle screw, and the pressure block is fixedly connected to the clamping plate, the movable arm slides synchronously with the limit plate, and then the distance between the movable arm and the fixed arm is changed, so as to adapt to workpieces of different sizes; A fixing component is provided between the two water pipe clamps, and the fixing component is located below the handle screw. The fixing component drives the pressing block to slide through the handle screw, and then the clamping plate slides horizontally to realize the loosening and clamping of the workpiece. The fixing component drives the two handle screws to slide synchronously, and then drives the pressing block to slide synchronously, thereby pushing the clamping block to fix the workpiece, which is convenient for subsequent processing by the staff; An adjusting component is provided in front of the fixing component, and a push rod is installed in the adjusting component. When the fixing component rotates, the fixing component drives the push rod to slide horizontally through the adjusting component to fix and loosen the guide rod. When the clamping plate fixes the workpiece, the fixing component drives the adjusting component to lock the guide rod, thereby fixing the movable arm. When the workpiece is processed, the clamping plate releases the fixation of the workpiece, and the fixing component drives the adjusting component to loosen the guide rod, thereby loosening the locking of the movable arm to facilitate the removal of the workpiece.
[0012] Preferably, the fixed assembly includes a driving turntable, a driving wheel, a double-sided rack and a driven wheel; the driving turntable is rotatably mounted on a limit plate, and a driving wheel is rotatably mounted on the other side of the limit plate; the driving wheel is fixedly connected to the driving turntable, a double-sided rack is provided below the driving wheel, and driven wheels are provided on both sides of the driving wheel; the two driven wheels are located above the double-sided rack and mesh with the double-sided rack; the driven wheel is slidably mounted on the meshing section; The staff drives the driving turntable to rotate synchronously, and the driving wheel drives the double-sided rack to slide during the rotation of the driving wheel. The double-sided rack engages with the two driven wheels at the same time, driving the driven wheels to rotate, thereby ensuring the consistency of the movement of the two driven wheels. When the driven wheel rotates, it drives the handle screw to rotate synchronously, and the handle screw pushes the pressure block to slide synchronously, and the pressure block pushes the clamping plate to move synchronously to fix the workpiece.
[0013] Preferably, a sliding groove is provided in the annular array of the meshing section, and a sliding block cooperating with the sliding groove is correspondingly provided on the inner side of the driven wheel. When the driven wheel rotates, the driven wheel squeezes the sliding groove through the sliding block and thereby drives the handle screw to rotate synchronously. During the rotation of the handle screw, the handle screw meshes with the movable arm and slides horizontally, and the driven wheel slides in the sliding groove through the sliding block to achieve relative sliding with the handle screw.
[0014] Preferably, an elastic gasket is provided on the clamping plate, which protects the workpiece and prevents damage to the wooden board caused by excessive clamping force. At the same time, it plays a buffering and shock-absorbing role, absorbs vibrations during processing, and ensures the stability of fixation.
[0015] Preferably, the adjusting assembly comprises a transmission wheel, a telescopic rod, a driving wheel, a rotating wheel, a driving rack and a shaft sleeve; the transmission wheel is located below the double-sided rack, the transmission wheel is rotatably mounted on a limit plate, the transmission wheel is connected to one end of the telescopic rod; the other end of the telescopic rod is fixedly connected to the driving wheel, the driving wheel is rotatably mounted on the fixed plate, and a rotating wheel is provided below the driving wheel; a driving rack is provided below the rotating wheel; shaft sleeves are provided on both sides of the driving rack; the shaft sleeve corresponds to the position of the fixed arm, the shaft sleeve is rotatably mounted on the fixed plate, the shaft sleeve is provided with gear teeth matching with the driving rack, a driving groove is opened in the shaft sleeve, the driving grooves in the two shaft sleeves have opposite rotation directions, and a push rod is slidably installed in the shaft sleeve; a driving block matching with the driving groove is provided on the push rod; When the driving turntable drives the double-sided rack to slide through the driving wheel, the double-sided rack drives the transmission wheel to rotate synchronously, the transmission wheel drives the telescopic rod to rotate synchronously, the telescopic rod drives the driving wheel to rotate synchronously, the driving wheel drives the driving rack to slide through the rotating wheel, the driving rack engages with the gear teeth on the shaft sleeve, and then drives the shaft sleeve to slide, when the shaft sleeve rotates, the driving groove on it squeezes the driving block on the push rod, thereby driving the push rod to slide horizontally.
[0016] Preferably, the driving groove is divided into a fixed section and a rotating section; the rotating section is a spiral groove, and the rotating sections are arranged in an annular array on the inner wall of the sleeve; the fixed section is an annular slide groove, and the fixed ends are symmetrically opened at both ends of the rotating section and are connected with the rotating section. The rotating section is used to drive the push rod to slide horizontally, and the fixed section is used to ensure the stability of the push rod. When the push rod completes the loosening or locking of the guide rod, the push rod is located in the fixed section. If the sleeve still rotates, the push rod remains stable under the action of the annular slide groove. At the same time, the rotating sections are arranged in an annular array on the inner wall of the sleeve, so that the driving block can quickly enter the driving groove when the sleeve rotates.
[0017] Preferably, the front end of the push rod is provided with an inclined surface that cooperates with the fixed arm, and the inclined surface fits with the elastic card when the fixed arm locks the guide rod. When the guide rod needs to be loosened, the close fit between the push rod and the elastic card can increase the force of the push rod on the elastic card, thereby better pushing the elastic card to rotate and loosen the lock of the guide rod.
[0018] The present invention adopts the above technical solution to bring the following beneficial effects: 1. A clamping device and a woodworking clamp of the present invention realize a uniform distribution of the clamping force on the workpiece through a fixing assembly, thereby ensuring the stability of the workpiece clamping and improving the processing quality of the workpiece.
[0019] 2. A clamping device and a woodworking clamp of the present invention realize the unified fixation and loosening of a workpiece and a guide rod through the mutual cooperation of a fixing component and an adjusting component, thereby improving the clamping effect of the workpiece and ensuring the operating efficiency.
[0020] 3. A clamping device and a woodworking clamp of the present invention improve the use efficiency of the water pipe clamp through the segmented assembly of the handle screw, reduce the force when rotating the handle screw, and improve the operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A half-section view of the water pipe clamp of the present invention; Figure 2 It is a schematic diagram of the handle screw of the present invention; Figure 3 It is an overall schematic diagram of the clamping device of the present invention; Figure 4 It is a schematic diagram of the assembly of the clamping device of the present invention; Figure 5 It is a schematic diagram of the fixing assembly and the adjusting assembly of the present invention; Figure 6 A half-section schematic diagram of a fixing assembly of the present invention; Figure 7 It is an overall schematic diagram of the adjustment component of the present invention; Figure 8 A half-section schematic diagram of a mandrel and a fixed arm of the present invention; Fig. 9 For the present invention Figure 8 A local enlarged view of point A; Fig.10 It is an overall schematic diagram of the shaft sleeve of the present invention.
[0022] In the figure: 1. Water pipe clamp; 11. Fixed arm; 111. Elastic card; 12. Guide rod; 13. Movable arm; 14. Handle screw; 141. Vertical section; 142. Horizontal section; 1421. Driving section; 1422. Engaging section; 1423. Slide; 15. Press block; 2. Workbench; 21. Fixed plate; 3. Limiting plate; 4. Fixed assembly; 41. Driving turntable; 42. Driving wheel; 43. Double-sided rack; 44. Driven wheel; 441. Sliding block; 5. Clamping plate; 6. Adjustment assembly; 61. Transmission wheel; 62. Telescopic rod; 63. Driving wheel; 64. Intermediate wheel; 65. Driving rack; 66. Bushing; 661. Driving slot; 6611. Fixed section; 6612. Rotating section; 7. Push rod; 71. Driving block. DETAILED DESCRIPTION
[0023] 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.
[0024] A clamping device and a woodworking clamp of the present invention: like Figure 1 to Figure 2 As shown, a woodworking clamp comprises a water pipe clamp 1; the water pipe clamp 1 comprises a fixed arm 11, a guide rod 12, a movable arm 13, a handle screw 14 and a pressure block 15; the fixed arm 11 is installed with an elastic card 111, and the guide rod 12 is slidably installed on the fixed arm 11; one end of the guide rod 12 is fixedly connected to the movable arm 13, and the movable arm 13 is connected to the guide rod 12 by a thread, and the threaded connection improves the stability of the connection between the guide rod 12 and the movable arm 13, and at the same time, it is convenient to disassemble and install the guide rod 12 for use by staff; a handle screw 14 is slidably installed on the movable arm 13, and the handle screw 14 is located above the guide rod 12, a spiral groove is opened on the movable arm 13, and a thread is provided on the handle screw 14, and the handle screw 14 realizes its own horizontal sliding through the thread and the spiral groove on the movable arm 13, and its principle is similar to that of a ball bearing. Screw; A pressure block 15 is rotatably installed on the handle screw 14, and a through hole is opened on the pressure block 15 to cooperate with the guide rod 12, so as to realize the rotatable installation of the handle screw 14. When the handle screw 14 rotates, the pressure block 15 is connected with the guide rod 12 through the through hole to ensure its own stability, and does not rotate synchronously with the handle screw 14, but only slides synchronously with the handle screw 14; the handle screw 14 is divided into a vertical section 141 and a horizontal section 142, and the vertical section 141 is slidably connected with the horizontal section 142. Limiting balls are provided at both ends of the vertical section 141 to ensure the connection between the vertical section 141 and the horizontal section 142. The vertical section 141 is slidably connected with the horizontal section 142, which is convenient for adjusting the distance of the vertical section 141 according to the angle of the handle screw 14, thereby changing the torque of the handle screw 14, thereby facilitating the twisting of the staff and playing a labor-saving role; The fixed arm 11 plays a role of reference positioning and is used to be fixed to the workbench 2; The guide rod 12 is used to limit the moving track of the movable arm 13, so that the movable arm 13 and the fixed arm 11 remain corresponding. At the same time, the guide rod 12 plays a placing role, which is used to place the wooden board and maintain the stability of the wooden board; Fix one end of the guide rod 12 on the movable arm 13, and then pass the other end of the guide rod 12 through the fixed arm 11 to complete the installation of the water pipe clamp 1. During use, the movable arm 13 is pulled by the guide rod 12, and then the distance between the movable arm 13 and the fixed arm 11 is adjusted to meet the size of the workpiece, and then the guide rod 12 is fixed by the elastic card 111 to ensure the distance between the fixed arm 11 and the movable arm 13, and then the handle screw 14 is twisted to push the pressure block 15 to slide horizontally to fix and clamp the workpiece.
[0025] like Figures 3 to 8 As shown, a clamping device includes a water pipe clamp 1, a workbench 2, a limit plate 3, a fixing assembly 4, a clamping plate 5, an adjustment assembly 6 and a push rod 7; a fixing plate 21 is provided on the workbench 2, and a limit plate 3 is slidably installed on the workbench 2. The limit plate 3 and the workbench 2 are slidably connected through a limit block and a limit groove, and the limit is performed to ensure the sliding track of the limit plate 3. The water pipe clamp 1 is symmetrically installed on the workbench 2; the fixing arm 11 of the water pipe clamp 1 is installed on the fixing plate 21, and the fixing arm 11 plays an initial positioning role for the water pipe Installation of the subsequent part of the clamp 1, the movable arm 13 is fixedly installed with the limit plate 3, a handle screw 14 is rotatably installed on the movable arm 13, and the horizontal section 142 of the handle screw 14 is divided into a driving section 1421 and an engaging section 1422, and the driving section 1421 is used to connect with the movable arm 13 to realize its own horizontal sliding; a pressing block 15 is rotatably installed on the handle screw 14, and the pressing block 15 is fixedly connected with the clamping plate 5, and the movable arm 13 slides synchronously with the limit plate 3, thereby realizing the change of the distance between the movable arm 13 and the fixed arm 11, so as to adapt to workpieces of different sizes; A fixing component 4 is provided between the two water pipe clamps 1, and the fixing component 4 is located below the handle screw 14. The fixing component 4 drives the pressing block 15 to slide through the handle screw 14, and then the clamping plate 5 slides horizontally to realize the loosening and clamping of the workpiece. The fixing component 4 drives the two handle screws 14 to slide synchronously, and then drives the pressing block 15 to slide synchronously, thereby pushing the clamping block to fix the workpiece, which is convenient for subsequent processing by the staff. The fixing component 4 ensures the uniformity of the force applied to the two handle screws 14, thereby realizing the synchronous movement of the handle screws 14 and ensuring the uniformity of the force clamping of the workpiece; An adjusting component 6 is provided in front of the fixing component 4, and a push rod 7 is installed in the adjusting component 6. When the fixing component 4 rotates, the fixing component 4 drives the push rod 7 to slide horizontally through the adjusting component 6 to fix and loosen the guide rod 12. When the clamping plate 5 fixes the workpiece, the fixing component 4 drives the adjusting component 6 to lock the guide rod 12, thereby fixing the movable arm 13. When the workpiece is processed, the clamping plate 5 releases the fixation of the workpiece, and the fixing component 4 drives the adjusting component 6 to loosen the guide rod 12, thereby loosening the locking of the movable arm 13, thereby facilitating the removal of the workpiece.
[0026] The driving turntable 41 is rotatably mounted on the limiting plate 3, and a driving wheel 42 is rotatably mounted on the other side of the limiting plate 3; the driving wheel 42 is fixedly connected to the driving turntable 41, and a double-sided rack 43 is provided below the driving wheel 42, and driven wheels 44 are provided on both sides of the driving wheel 42. The driving wheel 42, the double-sided rack 43 and the driven wheel 44 are connected to the limiting plate 3 through limiting grooves and limiting blocks; the two driven wheels 44 are located above the double-sided rack 43 and mesh with the double-sided rack 43; the driven wheel 44 is slidably mounted with the meshing section 1422, and the meshing section 1422 is provided with a slide groove 1423 in a ring array, and the driven wheel 4 A slider 441 is provided on the inner side thereof to cooperate with the slide groove 1423. When the driven wheel 44 rotates, the driven wheel 44 squeezes the slide groove 1423 through the slider 441, thereby driving the handle screw 14 to rotate synchronously. During the rotation of the handle screw 14, the handle screw 14 is meshed with the movable arm 13 to slide horizontally. The driven wheel 44 slides in the slide groove 1423 through the slider 441 to achieve relative sliding with the handle screw 14. An elastic gasket is provided on the clamping plate 5. The elastic gasket protects the workpiece and prevents the wooden board from being damaged by excessive clamping force. At the same time, it plays a role of buffering and shock absorption, absorbs the vibration during processing, and ensures the stability of fixation. The staff drives the driving turntable 41 to rotate synchronously, and the driving wheel 42 drives the double-sided rack 43 to slide during the rotation of the driving wheel 42. The double-sided rack 43 engages with the two driven wheels 44 at the same time, driving the driven wheels 44 to rotate, thereby ensuring the consistency of the movement of the two driven wheels 44. When the driven wheels 44 rotate, they drive the handle screw 14 to rotate synchronously, and the handle screw 14 pushes the pressure block 15 to slide synchronously, and the pressure block 15 pushes the clamping plate 5 to move synchronously to fix the workpiece.
[0027] The transmission wheel 61 is located below the double-sided rack 43, and the transmission wheel 61 is rotatably mounted on the limit plate 3. The transmission wheel 61 is connected to one end of the telescopic rod 62; the other end of the telescopic rod 62 is fixedly connected to the driving wheel 63, and the telescopic rod 62 plays a role in motion transmission, transmitting the rotation of the transmission wheel 61 to the driving wheel 63, so that the driving wheel 63 rotates synchronously. The telescopic rod 62 is composed of at least two nested rods, so as to adapt to the adjustment of the distance between the movable arm 13 and the fixed arm 11. The driving wheel 63 is rotatably mounted on the fixed plate 21, and a rotating wheel 64 is provided below the driving wheel 63; a driving rack 65 is provided below the rotating wheel 64; and shaft sleeves 66 are provided on both sides of the driving rack 65; The shaft sleeve 66 corresponds to the fixed arm 11, and the shaft sleeve 66 is rotatably mounted on the fixed plate 21. The shaft sleeve 66 is provided with gear teeth that cooperate with the driving rack 65. A driving groove 661 is provided in the shaft sleeve 66. The rotation directions of the driving grooves 661 in the two shaft sleeves 66 are opposite. The driving groove 661 is divided into a fixed section 6611 and a rotating section 6612; the rotating section 6612 is a spiral groove, and the rotating section 6612 is annularly arrayed on the inner wall of the shaft sleeve 66; the fixed section 6611 is an annular The fixed ends are symmetrically arranged at both ends of the rotating section 6612 and are connected to the rotating section 6612. The rotating section 6612 is used to drive the ejector rod 7 to slide horizontally. The fixed section 6611 is used to ensure the stability of the ejector rod 7. When the ejector rod 7 completes the loosening or locking of the guide rod 12, the ejector rod 7 is located in the fixed section 6611. If the sleeve 66 still rotates, the ejector rod 7 remains stable under the action of the annular groove 1423. At the same time, the rotating section 6612 is annularly arrayed on the sleeve 6 6, so that when the shaft sleeve 66 rotates, the driving block 71 can quickly enter the driving groove 661. The two ends of the rotating groove are respectively provided with right-angled triangular protrusions. When the rotation direction of the shaft sleeve 66 is the same as the direction of the protrusions, the push rod 7 passes through the inclined surface of the protrusions, which will not hinder the relative rotation of the push rod 7 and the shaft sleeve 66. When the rotation direction of the shaft sleeve 66 is opposite to the direction of the protrusions, the right-angled side of the protrusions will hinder the relative rotation of the push rod 7 and the shaft sleeve 66, and the push rod 7 slides into the rotating section 6612 under the action of the protrusions. A push rod 7 is slidably mounted in the shaft sleeve 66; a driving block 71 is provided on the push rod 7 to cooperate with the driving groove 661; a slope is provided at the front end of the push rod 7 to cooperate with the fixed arm 11, and the slope fits with the elastic card 111 when the fixed arm 11 locks the guide rod 12. When the guide rod 12 needs to be loosened, the push rod 7 and the elastic card 111 are tightly fitted, which can increase the force of the push rod 7 on the elastic card 111, thereby better pushing the elastic card 111 to rotate and loosen the locking of the guide rod 12; When the clamping device is in the initial state, the push rod 7 pushes the elastic card 111 to loosen the lock on the guide rod 12, thereby facilitating the adjustment of the distance between the movable arm 13 and the fixed arm 11 to perform preliminary positioning of the workpiece. At the same time, due to the action of the telescopic rod 62, the change in the distance between the movable arm 13 and the fixed arm 11 will not affect the transmission of motion. When the driving turntable 41 drives the double-sided rack 43 to slide through the driving wheel 42, the double-sided rack 43 drives the transmission wheel 61 to rotate synchronously, the transmission wheel 61 drives the telescopic rod 62 to rotate synchronously, the telescopic rod 62 drives the driving wheel 63 to rotate synchronously, the driving wheel 63 drives the driving rack 65 to slide through the rotating wheel 64, the driving rack 65 engages with the gear teeth on the shaft sleeve 66, and then drives the shaft sleeve 66 to slide, and when the shaft sleeve 66 rotates, it squeezes the driving block 71 on the push rod 7 through the driving groove 661 thereon, thereby driving the push rod 7 to slide horizontally.
[0028] When the clamping device and the woodworking clamp of the present invention are used, a wooden board is placed on the workpiece and is pressed against the fixing plate 21 and placed on the workbench 2. At this time, the workpiece is located on the two guide rods 12. The staff pulls the movable arm 13 to slide horizontally through the handle screw 14, adjusts the distance between the movable arm 13 and the fixed arm 11 to preliminarily fix the workpiece, and then the staff rotates the driving turntable 41, the driving turntable 41 drives the driving wheel 42 to rotate synchronously, the driving wheel 42 drives the double-sided rack 43 to slide horizontally, the double-sided rack 43 drives the transmission wheel 61 to rotate synchronously, the transmission wheel 61 drives the telescopic rod 62 to rotate synchronously, and the telescopic rod 62 drives the driving wheel 63 to rotate synchronously, the driving wheel 63 drives the intermediate wheel 64 to rotate, the intermediate wheel 64 drives the driving rack 65 to slide horizontally, the driving rack 65 drives the shaft sleeve 66 to rotate, the shaft sleeve 66 pulls the push rod 7 to move along the direction of the fixed plate 21, the push rod 7 squeezes the elastic card 111, the elastic card 111 locks the guide rod 12, and at the same time, the double-sided rack 43 slides to drive the driven wheel 44 to rotate, the rotation of the driven wheel 44 drives the handle screw 14 to slide horizontally, the handle screw 14 drives the pressure block 15 to slide horizontally, and the pressure block 15 pushes the clamping plate 5 to slide along the direction of the fixed plate 21 to clamp the workpiece; When the workpiece is processed, the staff reverses the drive turntable 41, and the drive turntable 41 drives the driving wheel 42 to reverse and reset, and the driving wheel 42 drives the double-sided rack 43 to slide in the opposite direction and reset, and the double-sided rack 43 drives the driven wheel 44 to reverse, and the driven wheel 44 drives the handle screw 14 to reverse, and the handle screw 14 pulls the pressure block 15 to reset, and the pressure block 15 drives the clamping plate 5 to reset and loosen the fixation of the workpiece. At the same time, the double-sided rack 43 drives the transmission wheel 61 to reverse, and the transmission wheel 61 drives the driving wheel 63 to reverse through the telescopic rod 62, and the driving wheel 63 drives the rotating wheel 64 to reverse, and the rotating wheel 64 drives the driving rack 65 to reset, and the driving rack 65 drives the sleeve 66 to reset, and the sleeve 66 pushes the top rod 7 to squeeze the elastic card 111, and the elastic card 111 loosens the lock on the guide rod 12, and the staff removes the processed workpiece.
[0029] The present invention provides a clamping device and a woodworking clamp. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.
Claims
1. A woodworking clamp, characterized in that: Including a water pipe clamp (1); The water pipe clamp (1) comprises a fixed arm (11), a guide rod (12), a movable arm (13), a handle screw (14) and a pressing block (15); The fixed arm (11) is mounted with an elastic card (111), and a guide rod (12) is slidably mounted on the fixed arm (11); One end of the guide rod (12) is fixedly connected to the movable arm (13); A handle screw (14) is slidably mounted on the movable arm (13), and the handle screw (14) is located above the guide rod (12); A pressing block (15) is rotatably mounted on the handle screw rod (14).
2. The woodworking clamp according to claim 1, characterized in that: The movable arm (13) and the guide rod (12) are connected via threads.
3. The woodworking clamp according to claim 1, characterized in that: The handle screw rod (14) is divided into a vertical section (141) and a horizontal section (142), and the vertical section (141) and the horizontal section (142) are slidably connected.
4. A clamping device assembled from the woodworking clamp according to any one of claims 1 to 3, characterized in that: It comprises a water pipe clamp (1), a workbench (2), a limit plate (3), a fixing assembly (4), a clamping plate (5), an adjustment assembly (6) and a push rod (7); The workbench (2) is provided with a fixed plate (21), a limit plate (3) is slidably mounted on the workbench (2), and a water pipe clamp (1) is symmetrically mounted on the workbench (2); The fixed arm (11) of the water pipe clamp (1) is mounted on a fixed plate (21), the movable arm (13) is fixedly mounted on the limit plate (3), a handle screw (14) is rotatably mounted on the movable arm (13), a horizontal section (142) of the handle screw (14) is divided into a driving section (1421) and an engagement section (1422), a pressing block (15) is rotatably mounted on the handle screw (14), and the pressing block (15) is fixedly connected to the clamping plate (5); A fixing assembly (4) is provided between the two water pipe clamps (1), and the fixing assembly (4) is located below the handle screw (14). The fixing assembly (4) drives the pressing block (15) to slide via the handle screw (14), and then the clamping plate (5) slides horizontally to achieve loosening and clamping of the workpiece. An adjusting component (6) is arranged in front of the fixing component (4), and a push rod (7) is installed in the adjusting component (6). When the fixing component (4) rotates, the fixing component (4) drives the push rod (7) to slide horizontally through the adjusting component (6) to fix and loosen the guide rod (12).
5. The clamping device according to claim 4, characterized in that: The fixing assembly (4) comprises a driving turntable (41), a driving wheel (42), a double-sided rack (43) and a driven wheel (44); The driving turntable (41) is rotatably mounted on the limit plate (3), and a driving wheel (42) is rotatably mounted on the other side of the limit plate (3); The driving wheel (42) is fixedly connected to the driving turntable (41), a double-sided rack (43) is provided below the driving wheel (42), and driven wheels (44) are provided on both sides of the driving wheel (42); The two driven wheels (44) are located above the double-sided rack (43) and mesh with the double-sided rack (43); the driven wheels (44) are slidably mounted on the meshing section (1422).
6. The clamping device according to claim 5, characterized in that: The meshing sections (1422) are provided with sliding grooves (1423) in an annular array, and a sliding block (441) cooperating with the sliding grooves (1423) is correspondingly provided on the inner side of the driven wheel (44).
7. The clamping device according to claim 5, characterized in that: An elastic gasket is provided on the clamping plate (5).
8. The clamping device according to claim 5, characterized in that: The adjustment assembly (6) comprises a transmission wheel (61), a telescopic rod (62), a driving wheel (63), a rotating wheel (64), a driving rack (65) and a shaft sleeve (66); The transmission wheel (61) is located below the double-sided rack (43), the transmission wheel (61) is rotatably mounted on the limit plate (3), and the transmission wheel (61) is connected to one end of the telescopic rod (62); The other end of the telescopic rod (62) is fixedly connected to a driving wheel (63), the driving wheel (63) is rotatably mounted on a fixed plate (21), and a rotating wheel (64) is provided below the driving wheel (63); A driving rack (65) is provided below the rotating wheel (64); Bushings (66) are provided on both sides of the driving rack (65); The shaft sleeve (66) is rotatably mounted on the fixed plate (21), the shaft sleeve (66) is provided with gear teeth that cooperate with the driving rack (65), a driving groove (661) is provided in the shaft sleeve (66), and a push rod (7) is slidably mounted in the shaft sleeve (66); The push rod (7) is provided with a driving block (71) that cooperates with the driving groove (661).
9. The clamping device according to claim 8, characterized in that: The driving groove (661) is divided into a fixed section (6611) and a rotating section (6612); The rotating section (6612) is a spiral groove, and the rotating sections (6612) are arranged in a circular array on the inner wall of the shaft sleeve (66); The fixed section (6611) is an annular sliding groove (1423), and the fixed section (6611) is symmetrically arranged at two ends of the rotating section (6612) and is in communication with the rotating section (6612).
10. The clamping device according to claim 8, characterized in that: The front end of the push rod (7) is provided with an inclined surface that matches the fixed arm (11).